Device for artificial peat drying in a mat

FIELD: drying equipment engineering.

SUBSTANCE: device has frame with frontal and backward rotary support rollers, sole with groove on surface and heaters placed therein. Device is provided with mechanism for vertical displacement of soil, placed between ends of frame and sole, on running surface of rollers ball-like shelves are placed in staggered order. Vertical displacement mechanism is made of guide with post, held on the middle of each frame end, and of screw positioned on guide aperture, having two nuts, on sole surface groove is made along shape of common sine curve in form of even size portions serially placed one after the other along and symmetrically to longitudinal axis of sole. One nut is set on screw above said guide and made in form of hub and wheel placed below it, rigidly interconnected by rods, and other nut is set on screw below the guide. Size of ball-like shelves, length and width of sole are determined from mathematical formulae.

EFFECT: higher efficiency.

11 dwg

 

The invention relates to a drying technique and can be used in the production of milled peat, and drying the fibrous granular and bulk materials.

A device for drying materials, consisting of a heating chamber in the cavity which is rigidly mounted dispenser of hot gases, pipes which are in the walls of the hole and which is fixed to the burner and the heating chamber is formed by a sole, side walls and lid (the prospectus of the company And With "Titan 355", p.3, paragraph 3, 1982).

The disadvantage of this device for drying of the material is uneven and prolonged heating of the sole due to the structural embodiment of the sole and elements of heat supply.

The closest in technical essence is a device for field drying of peat spreading, including a sole with two brackets on each end, into the hole which is inserted into the rod with a handle and bracket, the axis of which is placed a rotatable support roller with a smooth running surface, and on the rod between the bracket and the bracket is mounted a spring, and on the surface of the sole is made of three longitudinal groove, in which at the same distance from each other placed heaters (electric or gas) (Patent RF №2117027, class C 10 F 5/02, 1998).

The disadvantages of the device include the reduction of productive the minute due to the constructive execution of the form of grooves and the running surfaces of the rollers. In addition, one of the drawbacks are the low maintenance properties.

The invention aims to remedy these disadvantages.

The technical result is to increase performance by reducing the duration of drying peat spreading through the intensification of heat peat, improve cross by improving grip the running surface of the rollers with the ground and due to the change in the volume of the heating chamber by vertical movement of the soles.

The technical result is achieved in that the device for artificial drying of peat spreading, comprising a frame with front and rear swivel support rollers, the bottom with a groove on the surface and placed in it by the heaters according to the invention equipped with a mechanism for vertical movement of the sole located between the ends of the frame and the soles on the running surfaces of the rollers arranged in a checkerboard pattern spherical protrusions, and the vertical movement mechanism soles made in the form of a guide with a rack fixed on the middle of each end frame, and placed in the hole of the guide it screw with two nuts, on the surface of the soles of the groove made by the form of a General sinusoidal curve in the form of sequentially arranged one after another along and symmetrically relative to the longitudinal axis of the soles is equal sections, one nut mounted on the screw above mentioned guide and is designed as a hub and located above her wheel rigidly connected by rods, and the other nut mounted on the screw under the guide, the size of the spherical protrusions defined by the expression:

d=(1/10 1/8...) · E,

where d is the diameter of the spherical protrusion,

D - diameter of the rink;

length of sole is defined by the expression:

where L is the length of the sole;

ω - frequency curve of the General sine wave;

and the size of the segment of the sole between the butt and mid-width of the groove (take constructive);

n - number of lots total curve sine wave (accept constructive),

the width of the sole is determined by the expression:

W=2A+2B,

where W is the width of the sole;

A - amplitude curve of the General sine wave;

b - size segment of the sole between the side edge and the extremum of the total curve of sines (accept constructive).

The proposed device for artificial drying of peat spreading is illustrated by drawings, where:

figure 1 is a device for artificial drying of peat spreading,

side view, a longitudinal section;

in figure 2, a top view on a in figure 1;

figure 3 - shows the location of the groove on the sole;

figure 4 - shows the rink: a - front view, b - lateral view;

figure 5 - shows a spherical protrusion;

on IG - shows the vertical movement mechanism soles, view B in figure 1;

figure 7 - shows the position of the axes of coordinates on the sole and the intersection of function total sinusoid with the OX axis (point point in-1in1in2in3in4in5;

on Fig is depicted wheeled nut: a - lateral view, b - top view;

figure 9 shows the technological scheme of production of milled peat with obtaining coarse fraction: a - trailer, b - mill with roller formulateed, tape formed aggregated particles; g - dryer, D. - dried peat particles.

The best option exercise device

Device for artificial drying of peat in spreading includes a frame 1 with a rotating rollers 2 on each side. On the running surfaces of the rollers 2 in a staggered position of the spherical protrusions 3, having a size on the axes defined by the expression D=1/10 1/8...) D, where d is the diameter of the spherical projection, D is the diameter of the rink.

Inside the frame 1 freely placed sole 4 with the bracket 5 at the middle of each edge.

Between the ends of the frame 1 and soles 4 posted by the vertical movement mechanism of the sole 4. It consists of a guide rail 6 with a rack installed on the middle of each end of the frame 1, the screw 7, is placed a threaded section in the guide hole 6, wheeled nut 8, is made in the form of a hub, wheel "d", located above the hub, and the rod e, connecting the hub with the wheel nut 9 mounted on the screw 7 under guideline 6.

The fingers 10 pivotally connected between the lugs of the bracket 5 of the sole 4 and the eyelet screw 7.

On the surface of the sole 4 is made in the General shape of the curve of the sine wave groove 11 with the formation of successively arranged one behind the other along and symmetrically relative to the longitudinal axis of the sole equal sections.

In the groove 11 is placed at the same distance from each other heaters (electric, gas) 12, and may be one heater.

On the surface of the sole 4 is installed thermal insulating plate 13. The cover 14 is placed on the pad 13 and the screws 15 are tightly pressed to the sole 4. To the sides and ends of the sole 4 is attached apron 16, made of water-and-gastight and heat-resistant material.

Device for artificial drying of peat in the spreading works as follows.

Choose the technological scheme of production of milled peat, for example, by obtaining the coarse fraction comprising the following operations, milling peat deposits with simultaneous formation of it in the tape to the specified profile and putting molded tape on field drying in one dense row (and may be in the form of the organized spreading compacted sformula the different particles), artificial drying of compacted tape (or particles), cleaning the dried peat from spreading or rolls.

After this map is treated with a mill "b"towing tractor "and", for example, a tractor. When this cutting elements of the drum with the movement of the tractor opposite the rotation circumferential speed of the cutting elements 10... 12 m/C, milling chips using the guide flap throw in the bin for a couple of rolls, which are counter rotating forming peat in tape or aggregated particles of a given profile that using cleaners and the guide plane (inclined trough) are placed on the field drying in dense organized a number. After that, the device for artificial drying of peat spreading "g" (one or more) being carried on the spreading of the tape (particles) "in" (for example, mechanical or muscular power). Then the electric current (and maybe down the gas thermal agent) is led to the heater 12, which heat up. The heated heater 12 heats the air under the sole 4 and the groove 11, to 180-170° With that transmits heat to the sole 4. Radiated sole 4 heat having a temperature of 150-170° affects formed peat moisture content of 87% and dries his (larger particles or tape). The apron 16 prevents the leakage of heat from the cavity under the sole . Upon reaching the desired moisture content, for example 50-30% drying peat finish. This loss of moisture and residual moisture is determined by the equation Wo=Wn-Wpwhere Woresidual mass fraction of moisture in the sample after drying, %; Wp- loss of mass fraction of moisture in the sample after drying, %; Wnmass fraction of moisture in the sample before drying, %.

Here Wp=(mn-mp)mn·100%, where mn- weight of sample before drying, g; mp- weight of sample after drying, g

After drying spreading peat, the duration of which is up to 30 min or more, the unit “g” to move to the next site with the raw aggregated particles "in" (or tape).

Moving the unit "g" to the next portion of the field of spreading the aggregate peat particles (compacted peat tape), drying lead in the above sequence to achieve the required humidity.

After drying peat aggregated particles "in" the first strip plot device "d" is transferred to the next strip with peat particles. For this purpose, rollers 2 turns (possibly simultaneously) rotate 90° i.e. have rotatable rollers 2 perpendicular to the longitudinal axis of the sole 4 (not shown). The device then "g" to move across the field to the next lane with normirovannym peat "in" and are drying.

When moving the frame 1 (device d) spherical protrusion 3 penetrate into the surface of the peat deposits. By increasing the coefficient of friction increases the friction rollers and 2 move without slipping. Thanks to exclude the accumulation of peat in front of the rollers 2, thereby reducing the time required to move the device g, that improves performance for production of peat.

The power source of the heater 12 can be: for heaters - area network, power lines, diesel generator mounted on the frame 1, and a stationary set; for gas heaters the heating of the air can be made straight firing, this device is equipped with a burner mounted on the frame 1.

Cleaning dried peat (aggregated particles or tape) can be produced from spreading or from rolls both manually and by harvesting machines.

Running groove on the surface of the sole on the General shape of the curve of the sine wave provides a more uniform heating of the sole. Thanks to improve day material, in particular peat, in the form of aggregated particles, compacted tape.

Accommodation on the running surfaces of the rollers are spherical protrusions and location them in a checkerboard pattern improves the condition of the moving device is.

The use of the device for artificial drying of peat spreading on site milling deposits increases the utilization of milled area by reducing the duration of drying.

Run the nuts in the form of a hub with the wheel and placing it over it facilitates commissioning and maintenance.

The graph of the General sine function has the form y=Asin(ω x+ϕo), 7. In comparison with an ordinary sine wave y=sinx, when A=ω =1 ϕo=0, the General sine wave is stretched along the X-axis in A time compressed along the X-axis in ω time and shifted to the left by segment ϕo/ω . Periodthe intersection with the X axis: B1B2...###the extrema Of1With2...In these equations: ϕo- initial phase; ω - frequency: A is the amplitude; Y, X, K - coordinates of the desired points.

The introduction of vertical movement of the sole allows you to change the volume of the chamber heating depending on the moisture content of the peat and the temperature of thermal agent (electric, gas), and thus to intensify the drying.

So when the moisture content of the peat 87% or more of the volume of the chamber heating is reduced by the supply of soles 4 to minimum distances in relation to the dry surface. For this purpose, the operator(s) rotate(s) alternately (or simultaneously) each wheel "is", for example, in a counterclockwise direction. Under the influence of gravity the translational screw 7 on the guide hole 6 is lowered together with the sole 4 to the required value. Thereafter, the nut 9 fail to lock into the lower end of the guide 6. Thanks to create optimal conditions for the drying of peat spreading. When drying peat humidity 60% or less of the volume of the chamber heating increases by removal of the sole 4 of the peat surface at the desired distance. For this purpose, the nut 9 away from the lower end of the guide 6. Then rotate the nut 8, for example, clockwise. When this screw 7 progressive moves in the guide hole 6 up. Together with the screw 7 moves up and the sole 4. If necessary, the nuts 8 and 9 fail to lock into the respective ends of the guide 6, so eliminate the burning of peat.

In both cases, rotation of the nut 8, the terminals “e” provide a hard link wheel "d" hub "C".

The device can be used in the turf industry, agriculture and construction.

Device for artificial drying of peat spreading, comprising a frame with front and rear swivel support rollers, the bottom with a groove on the surface and positioned therein heaters, characterized in that it is equipped with a mechanism for vertical movement beneath the you, located between the ends of the frame and the soles on the running surfaces of the rollers arranged in a checkerboard pattern spherical protrusions, and the vertical movement mechanism is made of a guide with a rack fixed on the middle of each end frame, and placed in the hole of the guide screw with two nuts, on the surface of the soles of the groove is made in the form of a General sinusoidal curve in the form of sequentially arranged one after another along and symmetrically relative to the longitudinal axis of the sole equal sections, one nut mounted on the screw above mentioned guide and is designed as a hub and located above her wheel rigidly connected by rods and the other nut mounted on the screw under the guide, the size of the spherical protrusions defined by the expression:

d=(1/10 1/8...) E,

where d is the diameter of the spherical protrusion;

D - diameter of the rink;

length of sole is defined by the expression:

where L is the length of the sole;

ω - frequency curve of the General sine wave;

and the size of the segment of the sole between the end and middle of the width of the groove;

n - number of lots total curve sine wave,

width of the foot defined by the expression:

W=2A+2B,

where W is the width of the sole;

And the amplitude of the curve is the total sine wave;

b - size segment of the sole between the side edge and the extreme curve of the General sine function.



 

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