Device for no-carryover drying

FIELD: heating.

SUBSTANCE: in a device for no-carryover drying, comprising a loading device of moist material or solution, a drying chamber, a fan and a system of spent drying agent treatment, besides, the drying chamber comprises a cylindrical vessel, a porous shell installed coaxially in it, forming a free space for even passage of a drying agent inside the shell, besides, the shell material is made on the basis of aluminium-containing alloys with their further filling by titanium hydride or air with density within 0.5…0.9 kg/m3 with the following strength properties: compression strength within 5…10 MPa, bending strength within 10…20 MPa, and dry product is removed from a hopper via a gate lock, besides, for removal of the drying agent from the shell there is a rotary hollow porous cylinder, connected by means of a shaft with a drive, installed on the cover. Besides, the porous cylinder is made of a stiff porous material, for instance, foam aluminium or metal ceramics, or metal foam rubber with porosity extent within the range of optimal values: 30…45%. Supply of moist material or solution may be carried out by several sprayers, evenly arranged along the entire cross section of the shell, and the drying agent via the space under the upper cover leaves the device, at the outlet of which there is an acoustic plant installed for catching of medium-dispersed particles, connected with a cyclone connected to a discharge device. Optimal parameters for sound treatment in the acoustic plant with concentration of particles in the drying agent flow of at least 2 g/m3 are as follows: level of sound pressure in the range of 145…150 dB, frequency of oscillating process in the range of 900…1100 Hz, time of sounding in the range of 1.0…2 s, according to the invention, the body of each nozzle is made with a channel for supply of solution and comprises a coaxial rigidly coupled bushing, with a nozzle fixed on its lower part, made in the form of a cylindrical double-staged bushing, the upper cylindrical step of which is connected by means of a threaded connection with a central core, comprising a cylindrical part and a coaxial hollow cone installed with a circular gap relative to the inner surface of the cylindrical bushing, and the circular gap is connected at least with three radial channels, made in the double-stage bushing, connecting it with the circular cavity formed by the inner surface of the bushing and the outer surface of the upper cylindrical stage, besides, the circular cavity is connected to the channel of the body for supply of solution, and a sprayer is rigidly connected to the cone in its lower part with the help of a screw, and the sprayer is made in the form of an end round plate, edges of which are bent towards the circular gap between the nozzle and the hollow cone, at the same time on the side surface of the cone there are at least two rows of cylindrical throttling holes, with axes lying in planes perpendicular to the axis of the cone, and in each row there are at least three holes, besides, axes of throttling holes of one row are displaced relative to axes of throttling holes of the other row by an angle in the range of 15°÷60°.

EFFECT: improved efficiency of drying.

2 dwg

 

The invention relates to techniques for drying of dispersed materials and can be used in microbiological, food, chemical and other industries.

The closest technical solution to the declared object is apparatus for betooni drying suspended by the patent RF №2328677, F26B 17/10 containing the boot device of the wet material, a drying chamber, a fan and a purification system of exhaust air (prototype).

The disadvantage of the prototype is relatively low drying capacity of the final product.

The technical result is increased productivity drying.

This is achieved by an apparatus for betooni drying, containing the boot device wet material or solution, a drying chamber, a fan and a purification system of exhaust drying agent(or air or brine)and drying chamber comprises a cylindrical housing, coaxially located therein a porous shell, which forms a free space for uniform passage of the drying agent inside the shell, and the shell material is made on the basis aluminothermic alloys with subsequent filling them with titanium hydride or by air with a density in the range of 0.5...0.9 kg/m3with the following mechanical properties: compressive strength is within a 5...10 MPa, bending strength in the range of 10 to 20 MPa, and removal of the dry product is produced from the hopper through a rotary shutter, and removal of the drying agent of the shells is provided a rotating hollow porous cylinder is connected through a shaft with the drive located on the lid, and the porous cylinder is made of a hard porous material, for example of penelopina or cermets, or metalloboranes with porosity in the range of optimal values: 30...45%, while the supply of wet material or solution may be several nozzles are evenly distributed over the whole cross section of the shell, and the drying agent through the space under top cover leaves the apparatus, the output of which is equipped with a sound device for trapping medium-fine particles, coupled with the cyclone associated with a device for unloading, with the optimal settings for sound processing in an acoustic setting with the concentration of particles in the flow of the drying agent not less than 2 g/m are: sound pressure level in the range of 145...150 dB, the frequency of the oscillatory process in the range of 900...1100 Hz, the time of sound in the range 1,0...2, the body of each nozzle is made with a channel for supplying a solution and contains coaxially rigidly associated sleeve, with enshrined in its n is the old part of the nozzle, made in the form of two-stage cylindrical sleeve, the upper cylindrical stage which are connected by threaded connection with a Central core consisting of a cylindrical part and coaxially with her hollow cone mounted with annular gap relative to the inner surface of the cylindrical sleeve, and the annular gap is connected, at least three radial channels made in the two-stage sleeve, connecting it with the ring cavity formed by the inner surface of the sleeve and the outer surface of the upper cylindrical stage, and the annular cavity is connected with the channel of the housing for the supply of the solution, and the cone in its lower portion rigidly connected with screw the atomizer, which is made in the end of a round plate, the edges of which are bent in the direction of the annular gap between the nozzle and a hollow cone, with the lateral surface of the cone is made of at least two rows of cylindrical throttle openings with the axes lying in planes perpendicular to the axis of the cone, and each row is made at least three holes, and the axis of the throttle openings of one row offset from the axes of the throttle openings of the other row by an angle lying in the range 15°÷60°.

Figure 1 shows the diagram of the apparatus, figure 2 - scheme have crucified the El.

Apparatus for betooni drying in suspension includes a cylindrical housing 1 coaxially located therein a porous shell 2, which forms a free space for uniform passage of the drying agent inside the shell. The material of the shell 2 is made on the basis aluminothermic alloys with subsequent filling them with titanium hydride or by air with a density in the range of 0.5...0.9 kg/m3with the following mechanical properties: compressive strength in the range 5...10 MPa, a bending strength in the range of 10 to 20 MPa.

The dimensions of the annular space defined by the performance of the drying unit and quantitative characteristics of the original dispersed material, for example, the size and shape of particles, particle size, density, structural properties, etc. Remove the dry product is produced from the hopper 7 through the rotary shutter 8. Removal of the drying agent of the shell 2 is provided rotatable in the annular gap 9 is a hollow porous cylinder 3 connected by means of shaft 4 with a drive (not shown), located on the lid 5. Hollow porous cylinder 3 made of a hard porous material, for example of penelopina or cermets, or metalloboranes with porosity in the range of optimal values: 30...45%.

As R is Stylites 6 is used, the nozzle (figure 2), which comprises a cylindrical hollow body 9 with channel 11 for supplying a fluid and coaxially rigidly connected with the housing sleeve 10 is fixed in the lower part of the nozzle, made in the form of two-stage cylindrical sleeve 12, the upper cylindrical stage 14 which are connected by threaded connection with a Central core consisting of a cylindrical part 15 and coaxially with her hollow cone 16 mounted annular gap 17 relative to the inner surface of the cylindrical sleeve 12. The annular gap 17 is connected, at least three radial channels 13, made in a two-stage sleeve 12 that connects the annular cavity 22 formed by the inner surface of the sleeve 10 and the outer surface of the upper cylindrical stage 14, and the annular cavity 22 is connected with the channel 11 of the housing 9 for the supply of the liquid.

The cone 17 in its lower part, is rigidly attached by means of a screw 21 of the nozzle 20, which is made in the end of a round plate, the edges of which are bent in the direction of the annular gap 17 between the nozzle and hollow cone 16. On the lateral surface of the cone 16 is made of at least two rows of cylindrical throttle openings 18 and 19, with the axes lying in planes perpendicular to the axis of the cone, and each row is made at least three holes. With these the m-axis of the throttle openings of one row offset from the axes of the throttle openings of the other row by an angle lying in the range 15°÷60°.

Depending on the performance of the camera in an industrial environment, the supply of wet material or solution may be several nozzles 6, evenly spaced across the cross-section of the shell 2.

Coolant through the space under the top cover 5 leaves the apparatus, the output of which is equipped with a sound installation (not shown) for trapping medium-fine particles, coupled with the cyclone associated with a device for unloading (not shown). Optimal parameters for sound processing in an acoustic setting with the concentration of particles in the air flow of not less than 2 g/m3are: sound pressure level in the range of 145...150 dB, the frequency of the oscillatory process in the range of 900...1100 Hz, the time of sound in the range 1,0...2 C.

Apparatus for betooni drying in suspension works as follows.

The drying agent with a specified temperature and humidity enters the space between the walls of the shell 1 and shell 2. Under the action of the pressure generated, for example, a fan, a drying agent penetrates through the pores of the walls of the shell inside it, there is heat exchange between the gas and the droplets or particles, is continuously supplied through the nozzle 6. The settling of the droplets or particles of nascency shell is prevented by organised ottowa them from the walls of the drying agent, coming through the pores. Exhaust fluid passes through the pores of the rotating hollow porous cylinder 3, and the particles approach the surface of the cylinder, fall in rotating boundary layer, which is formed at its surface, under the action of centrifugal forces dropped again into the volume of the shell and removed from the apparatus. The separated particles from the coolant through the space under the top cover 5 leaves the device.

The nozzle is carried out as follows.

Fluid under pressure is supplied into the cavity of the nozzle 9 and then goes in two directions: first, in the annular cavity 22 through radial channels 13 in the annular gap 17 between the nozzle and the Central core. When the pressure at the input of more than 0.2 MPa, the liquid is dispersed on the outer conical surface of the cone 16 with the formation of the liquid film, which is not detached from its outer surface. The acceleration of the liquid in the conical surface is accompanied by a decrease in her static pressure and vaporization and release of soluble gases. This phenomenon is additionally prepares the liquid to fragment into small drops. When reaching the liquid flow counter currents flowing from the cylindrical throttle openings 18 and 19, multiple fragmentation of film formation of the fine phase.

The second direction, which supplies the fluid through the channel 11 for supplying a fluid into the cavity of the Central core, and then into a hollow cone 16 from which part of the liquid will expire through radial holes 18 and 19, with multiple crushing trickling streams of liquid flowing from the throttle hole.

The presence of gas inclusions in the liquid additionally resent its surface, which leads to volnoobrazovaniye and volumetric crushing of the liquid film. Loss of mechanical energy when external clocking (external conical surface) decrease compared with the same acceleration in a closed channel.

The main parameters that affect the effectiveness of such gas purification system: the complete filling of the living section of the duct with water mist; the duration of contact of water and air; the density of water mist. Acoustic nozzle 2, used for gas purification wybranego air, consume compressed air 0,6...0,8 m3/min and water 1.5 to 2.2 l/min Created a water torch allows for installation in ducts with a diameter up to 600 mm Lower working pressure media: water - 1.5 ATM; compressed air - 1,5...2 bar (0,15...0.2 MPa). Compressed air is supplied through the Central channel, and the water - ring channel. Using acoustic nozzles 2 achieved a high degree of split is of water, the density of particles in the plume water mist and stability. Acoustic nozzles used for gas purification wybranego air, consume compressed air 0,6...0,8 m3/min and water 1.5 to 2.2 l/min Created a water torch allows for installation in ducts with a diameter up to 600 mm Lower working pressure media: water - 1.5 ATM; compressed air - 1,5...2 bar (0,15...0.2 MPa). One of the most effective ways to exclude the ingress of harmful emissions into the environment is the use of closed cycles gas agent during the drying of various materials.

The proposed device provides a significant reduction of the emission of particles.

Apparatus for betooni drying, containing the boot device wet material or solution, a drying chamber, a fan and the exhaust system of the drying agent, and drying chamber comprises a cylindrical housing, coaxially located therein a porous shell, which forms a free space for uniform passage of the drying agent inside the shell, and the shell material is made on the basis aluminothermic alloys with subsequent filling them with titanium hydride or by air with a density in the range of 0.5...0.9 kg/m3with the following mechanical properties: compressive strength in the range 5...10 MPa, a bending strength in the limit is x 10...20 MPa, and removal of the dry product is produced from the hopper through a rotary shutter, and removal of the drying agent of the shells is provided a rotating hollow porous cylinder is connected through a shaft with the drive located on the lid, and the porous cylinder is made of a hard porous material, for example of penelopina, or cermets, or metalloboranes with porosity in the range of optimal values 30...45%, while the supply of wet material or solution may be several nozzles are evenly distributed over the whole cross section of the shell, and the drying agent through the space under the top cover leaves the apparatus, the output of which is equipped with a sound device for trapping medium-fine particles, coupled with the cyclone associated with a device for unloading, with the optimal settings for sound processing in an acoustic setting with the concentration of particles in the flow of the drying agent not less than 2 g/m3are: sound pressure level in the range of 145...150 dB, the frequency of the oscillatory process in the range of 900...1100 Hz, the time of sound in the range 1,0...2, characterized in that the body of each nozzle is made with a channel for supplying a solution and contains coaxially rigidly associated bushing secured in its lower frequent the nozzle, made in the form of two-stage cylindrical sleeve, the upper cylindrical stage which are connected by threaded connection with a Central core consisting of a cylindrical part and coaxially with her hollow cone mounted with annular gap relative to the inner surface of the cylindrical sleeve, and the annular gap is connected, at least three radial channels made in the two-stage sleeve, connecting it with the ring cavity formed by the inner surface of the sleeve and the outer surface of the upper cylindrical stage, and the annular cavity is connected with the channel of the housing for the supply of the solution, and the cone in its lower portion rigidly attached by means of screws the spray, which is made in the end of a round plate, the edges of which are bent in the direction of the annular gap between the nozzle and a hollow cone, with the lateral surface of the cone is made of at least two rows of cylindrical throttle bores with axes lying in planes perpendicular to the axis of the cone, and each row is made at least three holes, and the axis of the throttle openings of one row offset from the axes of the throttle openings of the other row by an angle lying in the range 15°÷60°.



 

Same patents:

FIELD: machine building.

SUBSTANCE: in vortex evaporative-drying chamber with an inert nozzle, which contains evaporative and drying chambers arranged in a common housing and provided with gas supply and discharge pipelines, as well as a filter - heat exchanger made in the form of a nozzle from a fluidised bed of inert media, above which a sprayer is located; the sprayer is made in the form of a header rotating in bearings and provided with a control throttle for supply of initial solution, and exhaust dusted gases are subject to preliminary acoustic treatment in an acoustic plant; after that, gas flow is supplied to a cyclone with a bunker, where the main part of dry material carried over with gases is extracted, and final cleaning of gases is performed in a sleeve filter with a bunker; at that, atomisers are made in the form of acoustic atomisers, a resonator is made in the form of at least one spherical cavity located in an end wall of the housing, which faces a distributing head; at that, the spherical cavity is connected through a calibrated hole to a gap between a vertical hole in the end wall of the housing and a bar of the distributing head. In the cross-section perpendicular to the bar axis the gap has an annular cross-section, and the distributing head is made in the form of a housing with a cover plate in the form of flattened cones connected with large bases; at that, in the housing there located is a header in the form of a cylindrical cavity, which is connected through an annular channel formed with outer cylindrical surface of a hollow bar and holes of similar diameter, which are coaxial to it and made in the cover plate and the distributing head housing with at least three solution outlet channels uniformly arranged in a circumferential direction and perpendicular to the bar axis; at that, the section of the holes is located on conical surface of the distributing head cover plate, an inclination angle of which is determined by a root angle of prayed solution flame. According to the invention, a sprayer atomiser consists of a cylindrical part with outer thread for connection to a nozzle of a distributing pipeline supplying the solution, a conical transient part and a cylindrical part with diametrical section of bigger size and with inner threaded surface, and coaxially to the housing in its lower part there fixed is a nozzle formed with a cylindrical surface with outer thread interacting with the cylindrical part of the housing; at that, cylindrical surface of the nozzle changes over to conical surface and ends with end surface perpendicular to the housing axis, a blind partition wall with a jet nozzle in its centre, which is axisymmetrical to the nozzle and consists of cylindrical and conical throttle holes, which are connected in series. Besides, larger diameter of the conical hole is located on the blind partition wall of the nozzle; at that, the housing and the nozzle form three inner cylindrical chambers coaxial to each other, and on the nozzle, on the side opposite to liquid supply, there is an additional row of jet nozzles, which are formed at least with three pairs of mutually perpendicular vertical channels for liquid passage and horizontal channels which cross on a conical side surface of the nozzle and form outlet holes of each jet nozzle; at that, paired channels are located at a right angle to each other in longitudinal planes of the housing.

EFFECT: improvement of drying efficiency.

2 dwg

FIELD: heating.

SUBSTANCE: in a chamber for heat and mass exchange between dispersed particles and a gaseous medium, comprising a body with a cover, a vessel with porous walls installed inside the body concentrically to it, nozzles installed inside the vessel and a device for bleeding of the spent coolant with the porous working surface, equipped with a drive, and inside the vessel there are lattices fixed, between which there is a layer of an inert carrier filled, which increases efficiency of heat and mass exchange. To increase efficiency of operation of the inert carrier, at least two rods are connected to the rotary hollow porous cylinder, and their axes are parallel to the axis of the cylinder, and are at identical distance from its axis, and to each of rods at the angle of 45…90° there are additional rods attached, making it possible to intensify heat and mass exchange between coolant and dispersed material, according to the invention, the body of the nozzle is made with a channel for liquid supply and comprises a coaxial rigidly connected bushing, with a nozzle fixed in its lower part made in the form of a cylindrical double-staged bushing, the upper cylindrical stage of which is connected by means of a threaded joint with a central core, made of a cylindrical part and a coaxial conical socket installed with a circular gap relative to the inner surface of the cylindrical bushing, and the circular gap is connected at least with three radial channels made in the double-staged bushing, connecting it with the circular cavity, formed by the inner surface of the bushing and the outer surface of the upper cylindrical stage, besides, the circular cavity is connected with the channel of the body for liquid supply, at the same time to the conical socket, in its lower part, there is a receptacle rigidly fixed in the form of an end round plate with at least seven radial tabs, which are bent towards the circular gap between the nozzle and the socket, on the side surface of the socket there are at least two rows of cylindrical throttling holes, with axes lying in planes perpendicular to the socket axis, and in each row there are at least three holes, besides, in the end round plate there are at least three conical throttling holes with an angle near the top of the cone lying in the range of 45° - 90°.

EFFECT: higher efficiency of drying and tempering processes.

2 dwg

FIELD: heating.

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EFFECT: increasing efficiency and economy of the heat exchanger operation and increasing production capacity of the drier.

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Spraying drier // 2473853

FIELD: instrument making.

SUBSTANCE: spraying drier includes cylinder-conical drying chamber, cylindrical housing, conical cover plate and bottom, heat carrier supply air pipeline enclosing the drier housing on the outer side. Drag-type device with drive shaft is arranged at the bottom; outer side of the housing is provided with a duct with cyclones, the output of which is connected via air pipeline to the inlet of fans installed on the cover plate of drying chamber, and pressure lines of fans are connected by means of connection pipes to scrubber, in the upper part of which a header with atomisers is located and connected to supply pipeline and pressure pump; heat carrier is supplied from air heater via the line to the air duct to be further supplied to drying chamber. Drag-type device represents a lever with the centre connected to drive shaft and shoulders which are inclined and parallel to generatrixes of conical surface of the bottom. Drags made from the material that is inert in relation to the initial solution - suspension are rigidly attached to the lever arms, and the drying chamber bottom has an attached conical duct, in the lower part of which an additional drag-type device made in the form of a lever the centre of which is connected to drive shaft, is located; besides, its arms are horizontal and parallel to horizontal surface of conical duct bottom, in which finished product collecting bin is located, and vibrator is installed in lower part. Atomiser consists of cylindrical part with external thread for connection to the nozzle of distributing pipeline supplying the solution, suspension, conical transient part and cylindrical part with large size of diametrical section, and with internal threaded surface. A nozzle is fixed in lower part of housing coaxially to it; the nozzle is formed with cylindrical surface with external thread interacting with cylindrical part of housing. Besides, cylindrical surface of nozzle passes to conical surface and ends with an end blind partition perpendicular to the housing axis, with an orifice made in its centre, which is asymmetrical to the nozzle and consists of cylindrical and conical orifice holes connected in series. Larger diameter of conical hole is located on blind partition wall of the nozzle. Housing and nozzle form three internal cylindrical chambers that are coaxial to each other, and the nozzle, on the side that is opposite to the suspension solution supply, is provided with an additional row of orifices which are formed at least with three pairs of mutually perpendicular vertical channels for solution, suspension passage and horizontal channels, which cross on conical side surface of the nozzle and form outlet holes of each orifice; at that, pair channels are located at right angle to each other in longitudinal planes of the housing, and conical side surface of the nozzle is provided at an angle at the apex, which is equal to 90°.

EFFECT: improving the plant productivity by reducing the dried material sticking to drying chamber walls.

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SUBSTANCE: counterflow spray dryer comprises a cylindrical drying chamber with nozzles arranged on the upper level of the drying chamber, covering the lower level of the drying chamber from the outside, a gas duct in the form of a box with permanent cross section, separated into two compartments by a helical partition, the pitch of which is equal to the height of the box, a divider of a coolant flow arriving into the box into two flows sent into compartments into mutually opposite directions, gas-distribution grids at the coolant inlet into compartments, nozzles to supply coolant from compartments into a drying chamber arranged evenly on the upper and lower surfaces of the box. The helical partition comprises gas permeable parts that separate compartment sections that are initial and final along the coolant flow, every of which comprises at least one nozzle. Nozzles arranged on the upper surface of the box are displaced relative to the nozzles arranged on the lower surface of the box by half of the distance between neighbouring nozzles, and a part of the surface of the divider entering the box is perforated. Nozzles are arranged in plan at the angle of not more than 12° to conventional radii stretching in the drying chamber.

EFFECT: invention shall intensify drying process as a result of higher evenness of coolant distribution in a drying chamber and elimination of chamber walls overheating at coolant entry level.

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Spray dryer // 2451256

FIELD: machine building.

SUBSTANCE: spray dryer includes solution loading device, drying agent supply and gas-distributing system, unloading device and drying chamber. According to the invention, solution loading device, drying agent supply and gas-distributing system is made in the form of hollow cylinder with cover and bottom, which is installed on shaft with drive, the inner cavity of which is divided into sectors alternating in circumferential direction; some of the above sectors are connected to drying agent supply system, and the other ones are connected to solution loading device; each sector is equipped with openings made on side surface of cylinder. Openings made in sectors related to drying agent gas-distributing system have rectangular shape, and vertical row of holes is provided in sectors interconnected with solution loading device.

EFFECT: higher drying efficiency of suspensions.

2 dwg

FIELD: heating.

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EFFECT: production of a monodisperse product.

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Spray drier // 2435118

FIELD: heating.

SUBSTANCE: spray drier includes loading and unloading devices, heat carrier supply connection pipes, vertical housing, perforated deflector located in its inner volume, drive hollow shaft with disc and a cone nozzle, which are installed on it. Perforated deflector is made in the form of hollow cylinder connected to housing, on side surface of which holes are arranged in rows; at that, surface areas of the holes in rows increase as per normal law from disc plane upwards and downwards; to lower part of perforated deflector there attached is cone liquid receiver, and in inner volume of cone liquid receiver there arranged is cone nozzle connected to radial disc channels.

EFFECT: obtaining air-free flow with uniform volume density and uniform drying of material throughout the drier volume.

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FIELD: machine building.

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EFFECT: production of powder of salt from sea water and production of drinking water.

7 cl, 4 dwg

FIELD: chemistry.

SUBSTANCE: swirl chamber for processing poultry processing plants wastes has a helical collector and guide apparatus for supplying hot air or furnace gases; a loading device; hyperbolically shaped end walls (or approximately hyperbolical - for simplifying manufacturing, e.g. conical); axial connecting pipes, as well as tangential connecting pipes on the perimetre of the chamber on its diametrically opposite sides; a high-speed rotating disc on the axis of the chamber. On the disc along its radius there are vertical blades for crushing the processed material. After deep drying, the wastes can be stored for a long time and for a limited time after predrying. The wastes can then be used manure.

EFFECT: prevention of wastes from falling in water bodies and contamination of water bodies.

2 dwg

FIELD: machine building.

SUBSTANCE: in vortex evaporative-drying chamber with an inert nozzle, which contains evaporative and drying chambers arranged in a common housing and provided with gas supply and discharge pipelines, as well as a filter - heat exchanger made in the form of a nozzle from a fluidised bed of inert media, above which a sprayer is located; the sprayer is made in the form of a header rotating in bearings and provided with a control throttle for supply of initial solution, and exhaust dusted gases are subject to preliminary acoustic treatment in an acoustic plant; after that, gas flow is supplied to a cyclone with a bunker, where the main part of dry material carried over with gases is extracted, and final cleaning of gases is performed in a sleeve filter with a bunker; at that, atomisers are made in the form of acoustic atomisers, a resonator is made in the form of at least one spherical cavity located in an end wall of the housing, which faces a distributing head; at that, the spherical cavity is connected through a calibrated hole to a gap between a vertical hole in the end wall of the housing and a bar of the distributing head. In the cross-section perpendicular to the bar axis the gap has an annular cross-section, and the distributing head is made in the form of a housing with a cover plate in the form of flattened cones connected with large bases; at that, in the housing there located is a header in the form of a cylindrical cavity, which is connected through an annular channel formed with outer cylindrical surface of a hollow bar and holes of similar diameter, which are coaxial to it and made in the cover plate and the distributing head housing with at least three solution outlet channels uniformly arranged in a circumferential direction and perpendicular to the bar axis; at that, the section of the holes is located on conical surface of the distributing head cover plate, an inclination angle of which is determined by a root angle of prayed solution flame. According to the invention, a sprayer atomiser consists of a cylindrical part with outer thread for connection to a nozzle of a distributing pipeline supplying the solution, a conical transient part and a cylindrical part with diametrical section of bigger size and with inner threaded surface, and coaxially to the housing in its lower part there fixed is a nozzle formed with a cylindrical surface with outer thread interacting with the cylindrical part of the housing; at that, cylindrical surface of the nozzle changes over to conical surface and ends with end surface perpendicular to the housing axis, a blind partition wall with a jet nozzle in its centre, which is axisymmetrical to the nozzle and consists of cylindrical and conical throttle holes, which are connected in series. Besides, larger diameter of the conical hole is located on the blind partition wall of the nozzle; at that, the housing and the nozzle form three inner cylindrical chambers coaxial to each other, and on the nozzle, on the side opposite to liquid supply, there is an additional row of jet nozzles, which are formed at least with three pairs of mutually perpendicular vertical channels for liquid passage and horizontal channels which cross on a conical side surface of the nozzle and form outlet holes of each jet nozzle; at that, paired channels are located at a right angle to each other in longitudinal planes of the housing.

EFFECT: improvement of drying efficiency.

2 dwg

FIELD: heating.

SUBSTANCE: dryer for dried material with an area of dried material charging, a drying area, and also an area of dried material discharge, at the same time there is an air supply channel (4) for supply of drying gas to the drying area, and also at least one outlet hole (8) for discharge of drying gas, at the same time the air supply channel (4) is fenced with an outer wall (11) at the distance from it, having at least one supply hole (12), and also at least one output hole (13) for coolant, at the same time between at least one supply hole (12) and at least one output hole (13) there is a coolant flow section (14) between the outer wall (11) and the air supply channel (4). According to the invention, at least one output hole (13) is made as a through hole in the air supply channel (4), connecting the zone limited by the outer wall (11) with the inner part of the air-supply channel (4), at the same time at least one throughput hole (13) is arranged in the upper compartments of the air supply channel (4) and is made to provide for the possibility of coolant flow along the inner side of the air supply channel (4) downwards.

EFFECT: cooling of an air supply channel and lower heating of bearing parts of a body, which should provide for higher bearing capacity.

7 cl, 5 dwg

FIELD: heating.

SUBSTANCE: in the drier with controlled swirl heat carrier flow, which contains a drying chamber with a waste heat carrier and dried material mixture outlet opening located in upper part of the drying chamber, with a tangentially installed branch pipe for supply of tangential heat carrier flow, a branch pipe for supply of wet disperse material and a branch pipe for supply of axial heat carrier flow, which is provided along the chamber axis in its lower part, a grid for retention of a product in case of the drier shutdown, a new feature is that a swirler is located in lower part of the branch pipe for supply of axial heat carrier flow, and a branch pipe is installed tangentially in its upper part for supply of additional heat carrier flow.

EFFECT: improvement of the dried product quality, intensification of the heat and mass exchange process, uniform swirling, simpler unloading of the product, reduction of production complexity and erection of the structure, and reduction of the drier metal consumption.

2 dwg

FIELD: heating.

SUBSTANCE: infrared drying method of materials, and mainly seeds and grain, consists in the fact that material is moved horizontally, influenced with a drying agent, IR-radiation, tempered and returned to drying chambers. A new feature of the proposed method is that material is moved with a directed drying agent flow that is recirculated; after tempering, the material is subject simultaneously to impact of IR-radiation and the drying agent; then, only to impact of the drying agent; material is separated and one of its parts is cooled, and the other one is tempered after having been mixed with wet material.

EFFECT: primary combined impact of IR-radiation on seeds after tempering allows increasing moisture removal, and recirculation of the drying agent allows reducing drying costs.

2 dwg

FIELD: heating.

SUBSTANCE: drying plant for disperse high-humidity materials includes tight chambers connected to each other: vibrofluidised bed chamber for drying of disperse high-humidity material and fluidised bed chamber for drying of disperse high-humidity material till final humidity; at that, vibrofluidised bed chamber is equipped with loading and transfer devices made in the form of rotary valves, supply branch pipe of superheated steam of atmospheric pressure with a built-in control gate valve and branch pipe for its discharge; inside vibrofluidised bed chamber there located is a grid with a vibratory drive located on the outer side of the chamber; discharge branch pipe of superheated steam of atmospheric pressure is connected to a flow divider of waste steam of atmospheric pressure, which is equipped with two outlet branch pipes, one of which is connected through a circulating duct to the supply branch pipe of superheated steam of atmospheric pressure with formation of a recirculation circuit that includes in-series connected supply fan of steam of atmospheric pressure and superheater of atmospheric pressure steam, and the other one is connected by means of the outlet channel to superheater of reduced pressure steam; fluidised bed chamber is equipped with an unloading device made in the form of a rotary valve, supply branch pipe of superheated steam of reduced pressure and branch pipe for its discharge; inside fluidised bed chamber there installed is an inclined grid having the possibility of adjusting its inclination angle; at that, the grid is installed so that its inclination angle is more than natural material slope angle; outlet branch pipe of waste superheated steam of reduced pressure is connected to the flow divider of waste steam of reduced pressure, which is equipped with two outlet branch pipes, one of which is connected through the circulating duct to the supply branch pipe of superheated steam of reduced pressure with formation of the recirculation circuit including in-series connected supply fan of reduced pressure steam and superheater of reduced pressure steam, and the other one is connected to a vacuum pump.

EFFECT: invention shall provide obtaining of a high-quality finished product without reducing the intensity of the drying process, as well as more complete use of the heat of waste heat carrier.

1 dwg

Pneumatic dryer // 2476792

FIELD: metallurgy.

SUBSTANCE: pneumatic pipe-dryer includes a vertical cylindrical pneumatic pipe ending with an unloading device, and material supply device. Pneumatic pipe consists of sections, the lower section of which is connected to ambient air source (fan) and feeder, and the middle one, which is separated from lower and upper sections (or only from lower section) with inserts from heat insulating material, is made in the form of two coaxially located shells, the inner shell of which is provided with holes, and the space between shells - a spiral channel is filled with heat carrier through a tangentially located connection pipe.

EFFECT: avoiding the problem of material sticking on inner surface of pneumatic pipe.

3 cl, 1 dwg

FIELD: personal use articles.

SUBSTANCE: invention relates to a dryer (1) with pseudoliquid layer with indirect heating for drying wet fine-grained bulk materials, such as brown coal, comprising a housing (2) with gaseous bottom (6), with the built-in heat exchanger elements passing over the gaseous bottom (6), and with provided under the gaseous bottom (6) at least one discharge device for dried bulk material. And the useful clear opening of the housing flow in the area of the built-in heat exchanger elements increases along the entire height of the built-in heat exchanger elements in the direction of the flow of the fluidising gas. According to the invention, the cross-section of the housing (2) is constant, and the density of mounting of the built-in heat exchanger elements in the direction of flow of fluidising gas decreases.

EFFECT: prevention of impermissible extension of stationary pseudoliquid layer.

17 cl, 2 dwg

Batch drier // 2467271

FIELD: heating.

SUBSTANCE: invention refers to drying equipment of fine powder-like materials and can be used for drying of explosive products used for production of mixed solid rocket fuels. Drier can be used in other branches of industry for drying of various powder-like materials. Batch drier consists of drying chamber, loading and unloading hatches, gas distributing partition wall, heat carrier supply and removal assemblies. Gas distributing partition wall is made from elastic material, for example from rubber cloth, with perforation made by needle piercing.

EFFECT: gas distributing partition wall improves safety of the drying process and service during operation of explosive products.

2 dwg

FIELD: machine building.

SUBSTANCE: device for drying of polymer particles with an inert gas comprises the first distribution grid designed to supply the first inert gas flow through it, the first drying chamber installed above the first distribution grid, having a circular shape and designed to maintain the polymer in a fluidizated condition by the first inert gas flow, the second drying chamber, comprising a tubular element, concentrically arranged in the first drying chamber, stretching through it and protruding down under the first distribution grid, the second distribution grid arranged in the lower part of the tubular element and designed to supply the second inert gas flow through it. The method to dry a polymer with an inert gas includes the following stages: drying of polymer particles in the first drying chamber, having a circular shape to maintain polymer particles in a fluidizated condition by the first inert gas flow flowing upwards with cyclonic motion, rising along the spiral in the second drying chamber; further drying of polymer particles in the second drying chamber comprising a tubular element, with lowering of polymer particles in a plug flow contacting with the second inert gas flow.

EFFECT: method and device make it possible to dry polymer particles with improved efficiency with considerably lower time of polymer staying in a drying device.

12 cl, 3 dwg

FIELD: food industry.

SUBSTANCE: oven for adsorbent thermal regeneration contains a cylinder-conic chamber with a tangentially installed nipple for adsorbent gas suspension inlet, a hollow insert, heat medium outlet channels, a reflector installed so that to enable movement in the axial direction, a confusor for inlet of used heat medium flow being regenerated; the novelty consists in the fact that the hollow insertis designed in the form of alternating elements having an expanded and a narrowing part; in the narrow part of the last element a jet is positioned that, together with the narrow part of the hollow insert last element, forms an injection nozzle; the last element has a nipple for heat medium removal for disposal and is connected to the confusor for inlet of used heat medium flow being regenerated via a recirculation circuit; another aspect of novelty is the fact that the injection nozzle may be formed by way of the gas jet placement in the narrow part of the last element, the jet made of a semi-permeable material with a plenum chamber with helical channels arranged around it.

EFFECT: efficient removal of moisture from the solid component.

2 dwg

FIELD: heating.

SUBSTANCE: in a chamber for heat and mass exchange between dispersed particles and a gaseous medium, comprising a body with a cover, a vessel with porous walls installed inside the body concentrically to it, nozzles installed inside the vessel and a device for bleeding of the spent coolant with the porous working surface, equipped with a drive, and inside the vessel there are lattices fixed, between which there is a layer of an inert carrier filled, which increases efficiency of heat and mass exchange. To increase efficiency of operation of the inert carrier, at least two rods are connected to the rotary hollow porous cylinder, and their axes are parallel to the axis of the cylinder, and are at identical distance from its axis, and to each of rods at the angle of 45…90° there are additional rods attached, making it possible to intensify heat and mass exchange between coolant and dispersed material, according to the invention, the body of the nozzle is made with a channel for liquid supply and comprises a coaxial rigidly connected bushing, with a nozzle fixed in its lower part made in the form of a cylindrical double-staged bushing, the upper cylindrical stage of which is connected by means of a threaded joint with a central core, made of a cylindrical part and a coaxial conical socket installed with a circular gap relative to the inner surface of the cylindrical bushing, and the circular gap is connected at least with three radial channels made in the double-staged bushing, connecting it with the circular cavity, formed by the inner surface of the bushing and the outer surface of the upper cylindrical stage, besides, the circular cavity is connected with the channel of the body for liquid supply, at the same time to the conical socket, in its lower part, there is a receptacle rigidly fixed in the form of an end round plate with at least seven radial tabs, which are bent towards the circular gap between the nozzle and the socket, on the side surface of the socket there are at least two rows of cylindrical throttling holes, with axes lying in planes perpendicular to the socket axis, and in each row there are at least three holes, besides, in the end round plate there are at least three conical throttling holes with an angle near the top of the cone lying in the range of 45° - 90°.

EFFECT: higher efficiency of drying and tempering processes.

2 dwg

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