(57) Abstract:The invention relates to thermal treatment of waste. Afterburner waste contains metal cylindrical housing with end flanges and a lining 3 of refractory material. The enclosure is equipped with a shirt with fittings for the supply of the cooling agent. The lining has a Central axial channel is not less than 70 mm with holes for input and output gases in diameter (0.3 to 1.0)d, which is filled by a nozzle of the material lining the size of each element of the lining (0.15 to 0.3)d. 2 C.p. f-crystals, 2 Il. The invention relates to a device for thermal processing of waste and can be used in the chemical industry and utilities to reduce the toxicity of emissions from reactor thermal waste treatment.A device for combustion of a gaseous combustible wastes providing touch the flame front of the combustion chamber walls 
The device comprises a reaction chamber of a tunnel type with increased diameter and length: Dt3Dg, Lt(3 4)Dg. The Central angle of the straight torch is approximately equal to 25 degrees, which provides a touch of the torch on the wall, excluding the suction Gorna wall. However, due to heat exchange with the wall of the furnace combustion does not exclude the possibility of formation of parietal layer of gas, which is the preservation and (or) harmful organic compounds such as polychlorinated dioxins from unburned soot particles and radicals are always present in the flame.A device for post-combustion of waste in the form of a lattice of refractory material, allowing to carry out the process at temperatures above 1250 K in aggressive and destructive wall surface cold layer by creating barriers to gas flow  However, immediately after the grating wall surface layer is formed again, resulting in this decision turns out to be unsuitable for processing toxinogenic waste requiring residence time of at least 2 to 4 in the zone with a temperature of 1400 to 1600 K. the Increase in the thickness of the grating is not effective because of the cold gas in the outer channels. Repair lattice is hampered by the necessity for its removal.The closest in technical essence to the proposed device is the backburner containing the metal housing in the form of a cylinder with a diameter of 50 mm stainless steel IN the water heat-insulated on the outside with a layer of quartz glass wool. Inside the body cavity performs the function of the reaction chamber. The heating of the reaction chamber is carried out to the adiabatic temperature of combustion Dogileva mixture (1250 K) and is aimed at the destruction of the cold parietal layer of gas. In operation, the camera input serves the products of incomplete combustion of kerosene with a temperature of 750 to 850 K. the fullness of the afterburning is 55% 
The reason preventing people from getting in a known technical solution required technical result is the following.The material of the afterburning zone does not provide the possibility of working in corrosive environments, formed, for example, incineration of chlorinated wastes. Heating by means of wire is not possible to work at temperatures above 1300 due To the possibility of entering the heater failure, this temperature is insufficient for combustion of polychlorinated dioxins, which effectively takes place at temperatures above 1400 K. the Low degree of afterburning is also likely related to the low temperature of the reaction zone. The operation of similar devices shows that in case of heater failure repair requires complete removal of teploizolaziya in improving reuse and simplifying repair backburner.The technical result, which can be obtained by carrying out the invention, is that the improvement of the conditions of the combustion chamber is achieved through the destruction of the laminar cold parietal layer of the gas responsible for the formation and preservation of toxic compounds. If the cause of the destruction of the laminar layer is the gas exchange between the core flow and wall surface area and turbulence in near-wall layer showerhead.The technical result is achieved by the fact that in the post combustion wastes containing metal housing in the form of a cylinder with end flanges, the inner surface of the chamber is provided with a lining of refractory material with a Central axial channel of diameter d is not less than 70 mm with holes for input and output gases in diameter (0,3 1,0)d, filled with a nozzle made of a material lining size of each element (0,15 0,3)d.The technical result is also achieved by the fact that the nozzle is made in the form of Raschig rings, cylinders, balls or lump material, the inner diameter D of the camera has a size of not less than 200 mm and the length L (2 10)D, and the camera body is equipped with a jacket for cooling.In Fig. 1 shows a General view of the proposed device is about the condition 1 with an inner diameter D of not less than 200 mm and length L, equal to from two to ten D with flanges 2 at the ends, with internal insulation lining 3 with a thickness up to 0.4 D from corrosion and heat - resistant material, such as silica, with a Central internal channel diameter d of not less than 70 mm, the ends of which are input and output openings for digemari gas in diameter from 0.3 to 1d. Inlet by means of a flange of the second combustor connected with the source of high temperature gas, for example, combustion of waste. The housing can be provided with a jacket 4 with fittings 5 for supplying a cooling agent, for example, water or air. The inner channel Converter-filled nozzle 6 from the same material of the lining, the size of each element (0,15 0,30)d. The nozzle may be made in the form of balls, cylinders, Raschig rings, lumpy material.The device operates as follows.Into the inlet serves exhaust gases from the combustion chamber waste with an average temperature of 1000 To 3000 and with a minimum speed of 30 m/s the Flow is broken by the nozzle 6 into separate streams, which are at different angles of attack are faced with each other and with the wall of the lining 3 along the length of the camera, not allowing to stabilize parietal and flow rate not lower than 30 m/s the flow of gas when driving to the wall through the nozzle retain a sufficient pressure to destabilize the process of formation of cold parietal layer, that ensures the efficiency of the afterburner. Lining reduces heat loss to the environment and protects the camera body from high temperature and corrosive environments. From the gas chamber via the outlet port is directed to further processing. The proposed device allows for proper selection of the thickness and material of the lining and tips to handle corrosive gases at temperatures above 1250 K, the nozzle contributes to the relative delay in the chamber solid carbon particles, which is the primary material for the resynthesis of dioxins and thus their active burnout, lack of cold parietal layer contributes to a better burnout heat resistant organic compounds, the required contact time is provided free choice of the internal volume of the channel lining. Repair is limited to desapareceu channel nozzle. 1. Afterburner waste, comprising a cylindrical metal housing with holes for input and output gas, lined with refractory material channel filled with gas-permeable nozzle, wherein the internal channel has a diameter d of not less than 70 mm, the hole sizes of the input and output gas diameter is Ipanema in the form of Raschig rings, balls or lumpy material.3. Luggage under item 1, characterized in that the camera body with an inner diameter of not less than 200 mm is equipped with a jacket for cooling.
FIELD: burning waste gases of pyrolysis furnaces in reworking solid domestic wastes.
SUBSTANCE: proposed combustion chamber includes mixing chamber with active and passive nozzles mounted at its inlet; active and passive nozzles are connected respectively to compressed air source and to waste gas source; mixing chamber is made in form of diffuser at aperture angle of 10-18 deg; ratio of diameters of active and passive nozzles is equal to: Dact:Dpas=0.35-0.4.
EFFECT: enhanced economical efficiency of use of vapor-and-gas cycle.
2 cl, 1 dwg
FIELD: the invention refers to apparatus of regenerative thermal oxidation with multi pass valves.
SUBSTANCE: the apparatus for regenerative thermal oxidation for gas processing has a combustion zone, the first heat exchanging layer keeping heat exchanging surroundings and connecting with the combustion zone; the second heat exchanging layer keeping heat exchanging surroundings and connecting with the combustion zone; a valve for alternate direction of the gas flow between the first and the second heat exchanging layers. At that the valve has the first valve passage and the second valve passage separated from the first valve passage; a flow distributor having an admission passage communicates with the help of fluid medium with the admission opening of the surroundings and an exhaust passage communicates with the help of fluid medium with exhaust opening of fluid surroundings. At that the distributor is fulfilled with possibilities of its the first and the second valve passages between the first position in which the first valve passage communicates with the help of liquid with the admission passage and the second valve passage communicates with the help of liquid surroundings with exhaust passage and the second position in which the indicated the first valve passage communicates with the help of the fluid surrounding with exhaust passage and the second passage of the entry of the valve with the help of liquid surroundings communicates with the admission passage. At that the distributor of flow has a blocking surface which blocks the flow through the first part of the first valve passage and through the second part of the second valve passage when the distributor of the flow is between the first and the second positions and is fulfilled with possibility of its turning to 180o between the first and thesecond positions. At that valve passage is divided as the first so is the second at least into two chambers and the first and the second parts of the valve passages are congruous.
EFFECT: simplifies the construction, provides comfort of controlling and exploitation and deep removal of volatile organic combinations.
22 cl, 12 dwg
FIELD: technologies for combustion of flush gases, including those under high pressure, during extraction and processing of natural gas and oil.
SUBSTANCE: body of burner, mounted on gas inlet pipe, is made conical with widened portion at upper portion, in the body additionally mounted are two catalyst elements, at lower portion on inlet section first catalyst element is positioned, and above on outlet section - second catalyst element, rotary shutters are mounted on base of conical body in additional way, so that in closed position they are in contact with first catalyst element, and open position between first catalyst element and body gap is formed, also, device is additionally provided with one or more main torches, mounted in gas inlet pipeline below rotary shutters and first catalyst element. Relation of diameters of first and second catalyst elements matches relation of debits of hydrocarbon gas, fed in normal mode and during salvo exhaust. Catalyst elements are manufactured either in form of cell-like structured blocks with direction of channels in parallel to direction of feeding of flush gases, or in form of block sections with granulated catalyst, for example, Rachig rings, or in forms of block sections with active-catalyst metallic shavings, or in form of blocks with active-catalyst metallic meshes.
EFFECT: higher ecological safety and fullness of combustion of flush gases in broad flow range, simplified construction and comfort of maintenance.
6 cl, 3 dwg
FIELD: the invention refers to industrial ecology and may be used for flameless purification of ejections of industrial enterprises.
SUBSTANCE: the reactor for catalytic purification of gaseous ejections has a cylindrical body, which interior surface is covered with a catalyst with a source of infrared radiation placed in the body, a tube heat exchanger located in the lower part of the body, a turbine mixer located in the upper part of the body and additionally - a permeable cylindrical drum out of the catalyst so that the axles of the symmetry of the drum and body coincide. The drum embraces the mixer and the source of infrared radiation fulfilled in the shape of a six-ends star is installed in the middle of the body so that its flatness is perpendicular to the axle of the symmetry of the reactor. The drawing off socket is connected with the tube space of the heat exchanger, and the feeding socket is located so as to provide heating of gaseous ejections with the heat of the gases moving out of the reactor.
EFFECT: increases effectiveness of purification of gaseous flow and reduces power inputs for heating the gas flow.
FIELD: burning combustible gas at pressure above atmospheric.
SUBSTANCE: proposed plant is used for burning lean gases; it consists of unit for burning gas at pressure above atmospheric including lean gas chamber, combustion chamber, heat regeneration section and exhaust; pipe line supplying lean gas to lean gas chamber; heat removal and pressure equalizing chamber and preheated air chamber; plant is also provided with pipe line supplying the compressed surrounding air to heat removal and pressure equalizing chamber, preheated air pipe line for delivery of preheated air to preheated air chamber; provision is made for hole for delivery of lean gas from lean gas chamber to combustion chamber and hole for delivery of preheated air from preheated air chamber to combustion chamber. Heat removal and pressure equalizing chamber is made for heat exchange between lean gas chamber, preheated air chamber and combustion chamber and compressed surrounding air; lean gas and preheated air are burnt in combustion pressure at pressure above atmospheric.
EFFECT: enhanced efficiency; minimum difference in pressure between gas and air chambers.
12 cl, 12 dwg
FIELD: arrangements or devices for treating smoke or fumes.
SUBSTANCE: head comprises gas supply pipe with gas gate and protecting shield mounted outside and coaxially at the top end of the gas supply pipe. The protecting shield is composed of two baffles made of two hollow trancated cones mounted one on the other. The grater base of the top baffle faces downward, and that of the bottom baffle faces upward. The smaller base is connected with the gas supply pipe.
EFFECT: enhanced reliability and prolonged service life.
2 cl, 2 dwg
FIELD: power engineering.
SUBSTANCE: valve comprises rotatable housing provided with passage, outer unmovable ring seal of the housing, ring seal between the rotatable housing and outer unmovable ring seal of the housing that has bore made for permitting gas to flow to the passage or from the passage. The ring seal is movable with respect to the outer ring seal of the housing. The passage and the bore are made for permitting receiving the compressed gas to provide continuous sealing between the outer ring seal of the housing and ring seal when the housing rotates. The valve is additionally provided with means for permitting gas to flow through the radial passage and between the ring seal and outer unmovable ring seal of the housing and setting ring connected with the rotatable housing and locking ring that is mounted at a distance from the setting ring and connected with the rotatable housing. The ring seal is interposed between the setting ring and locking ring.
EFFECT: simplified structure and enhanced efficiency.
16 cl, 30 dwg
FIELD: toxic flue gas combustion technology for fuel-burning units.
SUBSTANCE: flue gases are neutralized in combustion chamber; total fuel flow is bifurcated; first fuel flow is mixed up with flue gases supplied to combustion chamber and second one is conveyed to combustion-chamber burners wherein it is burned in air environment and then passed to combustion chamber. Coke gas, flue gas, or blast-furnace gas, or generator gases, or mixture thereof can be used as fuel; total flowrate of flue gases (B"G) at combustion chamber outlet, total flowrate of fuel (BF) supplied to combustion chamber, flowrate of air (BA) supplied to combustion chamber, and flowrate of fuel (BF BRN) supplied to burners are found from following set of equations (1), (2), (3), (4):
, where B'G is flowrate of flue gases from combustion chamber outlet, kg/h; T'G is temperature of flue gases at combustion chamber inlet, °C; O'2 is oxygen content in flue gases at combustion chamber inlet, %; C'G is heat capacity of flue gases at combustion chamber inlet, kcal/kg; B"G is total flowrate of flue gases at combustion chamber outlet, kg/h; BF is total flowrate of fuel supplied to combustion chamber, kg/h; BF BRN is fuel flowrate to burners, kg/h; QF L is fuel low heating value as fired, kcal/kg; O2" is oxygen content in flue gases at combustion chamber outlet, %; VA O is theoretical air flowrate for burning 1 kg of fuel, kg/h; BA is air flowrate to combustion chamber, kg/h; TG" is gas temperature at combustion chamber outlet, °C; CG" is heat capacity of flue gases at combustion chamber outlet, kcal/kg; α is excess air coefficient. Temperature within combustion chamber is maintained between 850 and 1150 °C.
EFFECT: enhanced efficiency of flue gas neutralization in fuel-burning units.
1 cl, 1 dwg, 3 tbl, 1 ex
FIELD: chemical engineering.
SUBSTANCE: method comprises using gas made of a mixture of carbon dioxide and oxygen in the plasma burner. The plasma burner ionizes gas thus producing carbon monoxide and reactive oxygen that removes ash from the gas. Oxygen and vapor are sprayed and injected to chamber (3) that receives the device with plasma burner. The control system (6) is provided with feedback and controls the concentration of the production gas, nozzle, and plasma burner.
EFFECT: enhanced reliability.
29 cl, 3 dwg
FIELD: the invention is designed for ventilation and may be used at equipping industrial objects.
SUBSTANCE: the system of ventilation of an industrial object has local units of suction air with polluting substances, an airway connecting the local suction units with the suction branch pipe of a boiler's blow fan. The airway is connected through drainage with the pipeline located below it with condensed and liquid fractions of polluting substances. The pipeline is switched to the suction branch pipe of the boiler's blow fan.
EFFECT: increases reliability, economy of the ventilation system of an industrial object.
3 cl, 1 dwg