CN114130506A - Novel integrated feed particle production equipment - Google Patents

Abstract

The invention belongs to the field of feed production, and particularly relates to novel integrated feed particle production equipment which comprises a processing box, wherein a supporting table is fixedly connected to the bottom end of the processing box, a discharge hole is formed in the right side of the processing box, the bottom end of a material conveying plate is fixedly connected with the upper surface of the supporting table, an operation table is fixedly connected to the right side of the outer surface of the processing box, an inner cavity of the operation table is fixedly connected with the inside of the processing box through an electric wire, and a movable cover is movably connected to the top end of the processing box through an opening. When the device is used for processing the feed, the feed put into the rolling disc is ground for multiple times and then enters the feed spraying cylinder for screening, the feed with qualified final quality is sprayed out of the feed spraying cylinder, the feed flows and slides to the outside from the feed conveying plate on the right side through the shaking and screening of the interception plate, the device combines powder and the screening and other technological operation processes, the function is diversified, the technological process for producing the feed becomes simpler and more convenient, and the development of productivity is greatly promoted.

Description

Novel integrated feed particle production equipment

Technical Field

The invention belongs to the field of feed processing, and particularly relates to novel integrated feed particle production equipment.

Background

A feed granulator is also called as a pellet feed granulator and belongs to feed granulation equipment. The feed processing machine directly presses the crushed materials of corn, bean pulp, straw, grass, rice husk and the like into granules, and is widely suitable for large, medium and small aquaculture, grain feed processing plants, livestock farms, poultry farms, individual farmers and medium and small farms, and farmers or large, medium and small feed processing plants.

For the feed production process, technological operation processes such as crushing, sieving and the like are needed, the quality of feed finished products is often determined by technological production equipment, the feeding effect is directly influenced, however, the existing equipment is single in function, the technological process for producing the feed is complex, the development of productivity is greatly hindered, and an effective implementation equipment is not provided for overcoming the defects in the prior art.

Disclosure of Invention

The invention aims to provide novel integrated feed particle production equipment to solve the problems in the background technology.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to novel integrated feed particle production equipment which comprises a processing box, wherein a supporting table is fixedly connected to the bottom end of the processing box, a discharge hole is formed in the right side of the processing box, a material conveying plate is fixedly connected to the inner cavity of the processing box through the discharge hole, the bottom end of the material conveying plate is fixedly connected with the upper surface of the supporting table, an operation table is fixedly connected to the right side of the outer surface of the processing box, the inner cavity of the operation table is fixedly connected with the inside of the processing box through an electric wire, and a movable cover is movably connected to the top end of the processing box through an opening.

The processing box comprises a box shell, the upper part of the inner cavity of the box shell is rotatably connected with a rolling disc, the bottom end of the rolling disc is connected with a conical groove in a sliding manner, the outer surface of the conical groove is fixedly connected with the inner wall of the box shell, the inner wall of the conical groove is fixedly connected with an elastic screen, the lower surface of the elastic screen is connected with a lug in a sliding manner, the outer surface of the lug is fixedly connected with the inner cavity of the conical groove, the axis of the lower surface of the rolling disc is fixedly connected with a shaft rod, the middle part of the outer surface of the shaft rod is fixedly connected with a material spraying cylinder, the middle part of the inner wall of the box shell is fixedly connected with a material discharging chamber, the bottom end of the inner wall of the material discharging chamber is connected with a material shaking device in a sliding manner, two sides of the outer surface of the material shaking device are respectively connected with two sides of the inner wall of the material discharging chamber through guide wheels, the lower part of the outer surface of the shaft rod is fixedly connected with the bottom end of the material shaking device, and the bottom end of the shaft rod penetrates through the outer surface of the material discharging chamber, the bottom fixedly connected with of axostylus axostyle rotates the motor, the lower surface that rotates the motor is connected with the bottom fixed connection of case shell inner wall, the both sides of case shell inner wall bottom all are connected with the ventilation fan through fluting rotation.

The grinding disc comprises a hollow sleeve, a material distribution box is sleeved at the bottom of the outer surface of the hollow sleeve, a grinding tooth block is connected to the inner wall of the material distribution box in a rotating mode, the axis of the grinding tooth block is fixedly connected with the outer surface of the shaft rod, the outer surface of the shaft rod is connected with the bottom end of the inner cavity of the material distribution box in a sliding mode, the inner cavity of the material distribution box is fixedly connected with a bent pipe through a hole, and the bottom end of the bent pipe is fixedly connected with a grinding head.

The grinding head comprises an oblique head hollow pipe, the bottom end of the inner cavity of the oblique head hollow pipe is rotatably connected with a shifting ball, and the bottom end of the oblique head hollow pipe is connected with the inner wall of the conical groove in a sliding mode through the shifting ball.

The material spraying cylinder comprises an oblique opening hollow cylinder, the bottom end of the inner wall of the oblique opening hollow cylinder is rotatably connected with a cone pulley, the axis of the cone pulley is fixedly connected with the outer surface of a shaft rod, the upper surface of the cone pulley is fixedly connected with a cutting piece through the shaft rod, and the outer surface of the cutting piece is connected with the bottom end of the inner wall of a conical groove in a sliding mode.

Tremble the material device and include the inclined plane piece, the last fixed surface of inclined plane piece is connected with the interception board, the lower surface sliding connection of inclined plane piece has the carousel, the axle center department of carousel is connected with the external fixed surface of pivot, the last fixed surface of carousel is connected with the grafting strip, the surface of grafting strip passes through the lower surface swing joint of draw-in groove and inclined plane piece.

The ventilating fan comprises a bearing bent plate, pull strips are fixedly connected to two ends of the outer surface of the bearing bent plate, the outer surface of each pull strip is fixedly connected with the right side of the rotating fan inner cavity, and the axle center of the rotating fan is rotatably connected with the bottom end of the box shell inner cavity through a rotating shaft.

The invention has the following beneficial effects:

1. use the device during processing fodder, through using the operation panel to start rotating motor, the axostylus axostyle begins to rotate, the fodder that drops into in rolling the dish filters in going into the feed spraying section of thick bamboo after grinding many times, the qualified fodder of final quality spills from the feed spraying section of thick bamboo, fall on the interception board, the shake screening through the interception board flows in the defeated material board on right side and slides to the external world, at this in-process, the device merges technological operation processes such as powder and sieving, the function possesses the diversity, the technological process of production fodder becomes more simple and convenient, the development of productivity has greatly been promoted.

2. Former fodder is before processing, can be because air humidity usually, factor such as temperature caking, directly smash the fodder this moment, not only can prolong kibbling time, and kibbling effect is also not certain, drop into hollow telescopic fodder and fall into in the branch magazine, it rotates under the drive of axostylus axostyle to smash the tooth piece, carry out preliminary smashing with the fodder piece, and the fodder piece after smashing can get into inside the first of grinding through the return bend, the first of grinding carries out the circumference along with the rotation of axostylus axostyle at the inner wall of bell jar and slides, the ball of dialling is also rolling this moment, the ball of dialling is at rolling in-process, dial the fodder of the inside hollow tube of oblique head on the inner wall of bell jar, and roll many times, and then the regrinding.

3. Tremble the material device when vibrations, its reaction force can be conducted on the rotation motor of bottom through the case shell, the stability of motor work is rotated in the influence, so will eliminate the vibrations that rotate the motor place region, and simultaneously, the rotation motor is carrying out high-power during operation, can produce a large amount of heats, need the ventilation environment heat dissipation, the bearing bent plate shakes under the effect of vibrations power this moment, reduce the influence of vibrations to the rotation motor, the brace of bearing bent plate both sides is along vertical direction up-and-down motion under the pulling of vibrations power and bearing bent plate, the high frequency fan of revolving fan moves, drive the regional air in motor place that rotates, effectively dispel the heat to the rotation motor.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view of the processing tank of the present invention;

FIG. 3 is a schematic view of the structure of the milling disc of the present invention;

FIG. 4 is a schematic view of the construction of the mill head of the present invention;

FIG. 5 is a schematic structural view of the ejector cartridge of the present invention;

FIG. 6 is a schematic structural diagram of the material shaking device of the present invention;

fig. 7 is a schematic view of the construction of the ventilating fan of the present invention.

In the figure: the processing box comprises a processing box 1, an operation table 2, a material conveying plate 3, a movable cover 4, a box shell 11, a conical groove 12, an elastic screen 13, a bump 14, a discharging chamber 15, a blocking plate 16, a shaft rod 17, a rotating motor 18, a grinding disc 5, a hollow sleeve 51, a material distributing box 52, a crushing tooth block 53, a bent pipe 54, a grinding head 9, a beveled hollow pipe 91, a poking ball 92, a material spraying cylinder 6, a beveled hollow cylinder 61, a cutting blade 62, a cone pulley 63, a material shaking device 7, a bevel block 71, a rotary disc 72, an inserting strip 73, a ventilating fan 8, a bearing bent plate 81, a brace 82 and a rotating fan 83.

Detailed Description

A novel integrated feed pellet production facility according to an embodiment of the present invention will be described below with reference to fig. 1 to 7.

As shown in fig. 1-7, the novel integrated feed particle production equipment comprises a processing box 1, wherein a supporting table is fixedly connected to the bottom end of the processing box 1, a discharge hole is formed in the right side of the processing box 1, a material conveying plate 3 is fixedly connected to the inner cavity of the processing box 1 through the discharge hole, the bottom end of the material conveying plate 3 is fixedly connected to the upper surface of the supporting table, an operation table 2 is fixedly connected to the right side of the outer surface of the processing box 1, the inner cavity of the operation table 2 is fixedly connected to the inside of the processing box 1 through an electric wire, and a movable cover 4 is movably connected to the top end of the processing box 1 through an opening.

The processing box 1 comprises a box shell 11, the upper part of the inner cavity of the box shell 11 is rotatably connected with a rolling disc 5, the bottom end of the rolling disc 5 is slidably connected with a conical groove 12, the outer surface of the conical groove 12 is fixedly connected with the inner wall of the box shell 11, the inner wall of the conical groove 12 is fixedly connected with an elastic screen 13, the lower surface of the elastic screen 13 is slidably connected with a lug 14, the outer surface of the lug 14 is fixedly connected with the inner cavity of the conical groove 12, the axial center of the lower surface of the rolling disc 5 is fixedly connected with a shaft rod 17, the middle part of the outer surface of the shaft rod 17 is fixedly connected with a material spraying barrel 6, the middle part of the inner wall of the box shell 11 is fixedly connected with a material discharging chamber 15, the bottom end of the inner wall of the material discharging chamber 15 is slidably connected with a material shaking device 7, two sides of the outer surface of the material shaking device 7 are respectively slidably connected with two sides of the inner wall of the material discharging chamber 15 through guide wheels, and the lower part of the outer surface of the shaft rod 17 is fixedly connected with the bottom end of the material shaking device 7, the bottom end of the shaft lever 17 penetrates through the outer surface of the discharging chamber 15, the bottom end of the shaft lever 17 is fixedly connected with a rotating motor 18, the lower surface of the rotating motor 18 is fixedly connected with the bottom end of the inner wall of the case shell 11, the two sides of the bottom end of the inner wall of the case shell 11 are rotatably connected with the ventilating fans 8 through the slots, when the device is used for processing feed, the rotating motor 18 is started by using the operating platform 2, the shaft lever 17 starts to rotate, the feed put into the grinding disc 5 is ground for a plurality of times and then enters the material spraying cylinder 6 for screening, the feed with qualified quality finally spills out of the material spraying cylinder 6, falls onto the interception plate 16, flows from the material conveying plate 3 at the right side to the outside through the shaking screening of the interception plate 16, and in the process, the device combines technological operation processes such as powder and sieving, and the function possesses the variety, and the technological process of production fodder becomes more simple and convenient, has greatly promoted the development of productivity.

The grinding disc 5 comprises a hollow sleeve 51, a material distribution box 52 is sleeved at the bottom end of the outer surface of the hollow sleeve 51, a grinding tooth block 53 is rotatably connected to the inner wall of the material distribution box 52, the axis of the grinding tooth block 53 is fixedly connected with the outer surface of the shaft rod 17, the outer surface of the shaft rod 17 is slidably connected with the bottom end of the inner cavity of the material distribution box 52, the inner cavity of the material distribution box 52 is fixedly connected with a bent pipe 54 through an opening, and the bottom end of the bent pipe 54 is fixedly connected with a grinding head 9.

The mill head 9 comprises an oblique head hollow pipe 91, the bottom end of the inner cavity of the oblique head hollow pipe 91 is rotatably connected with a shifting ball 92, the bottom end of the oblique head hollow pipe 91 is slidably connected with the inner wall of the conical groove 12 through the shifting ball 92, the raw feed is usually agglomerated due to factors such as air humidity and temperature before processing, the feed is directly pulverized at the moment, not only is the pulverizing time prolonged, but also the pulverizing effect is not necessarily good, the feed put into the hollow sleeve 51 falls into the material distributing box 52, the pulverizing toothed block 53 is driven by the shaft rod 17 to rotate to primarily pulverize the feed block, the pulverized feed block can enter the mill head 9 through the elbow pipe 54, the mill head 9 slides circumferentially on the inner wall of the conical groove 12 along with the rotation of the shaft rod 17, at the moment, the shifting ball 92 also rolls, the shifting ball 92 shifts the feed in the inclined head hollow pipe 91 onto the inner wall of the conical groove 12 in the rolling process, and performing rolling for multiple times, and further performing secondary grinding.

The material spraying barrel 6 comprises an inclined opening hollow barrel 61, the bottom end of the inner wall of the inclined opening hollow barrel 61 is rotatably connected with a cone pulley 63, the axis of the cone pulley 63 is fixedly connected with the outer surface of a shaft rod 17, the upper surface of the cone pulley 63 is fixedly connected with a cutting piece 62 through the shaft rod 17, the outer surface of the cutting piece 62 is slidably connected with the bottom end of the inner wall of a conical groove 12, feed falling from the conical groove 12 does not contain caking due to the fact that the feed is ground through a grinding disc 5, feed particles at the moment fall onto the outer surface of the cone pulley 63 after being ground through the cutting piece 62, and are thrown into the inclined opening hollow barrel 61 under the centrifugal force action of the cone pulley 63, and the feed flows out of the inclined opening hollow barrel 61 after being screened with an inclined opening through the centrifugal force action of the inclined opening hollow barrel 61.

The material shaking device 7 comprises an inclined plane block 71, a blocking plate 16 is fixedly connected to the upper surface of the inclined plane block 71, a rotary table 72 is connected to the lower surface of the inclined plane block 71 in a sliding mode, the axis of the rotary table 72 is fixedly connected with the outer surface of a rotary shaft, an inserting bar 73 is fixedly connected to the upper surface of the rotary table 72, the outer surface of the inserting bar 73 is movably connected with the lower surface of the inclined plane block 71 through a clamping groove, a common processing device needs to use a conveyor belt and other devices to convey the feed to the outside, in order to simplify the process, the material shaking device 7 is used for conveying the feed instead of the conveyor belt, when the rotary motor 18 rotates, the shaft rod 17 drives the rotary table 72 to rotate, when the rotary table 72 rotates for a certain angle, the inserting bar 73 is clamped with the clamping groove in the lower surface of the inclined plane block 71, the inclined plane block 71 moves downwards, and when the rotary table 72 continues to rotate, the inserting bar 73 is separated from the clamping groove in the lower surface of the inclined plane block 71, the inclined plane block 71 is jacked up and ascends, the process is circularly carried out, the inclined plane block 71 is shaken in a reciprocating mode, and the feed particles on the interception plate 16 move downwards in an inclined mode under the combined action of the self gravity and shaking of the inclined plane block 71 and slide out of the material conveying plate 3.

The ventilating fan 8 comprises a bearing bent plate 81, both ends of the outer surface of the bearing bent plate 81 are fixedly connected with brace 82, the outer surface of the brace 82 is fixedly connected with the right side of the inner cavity of a rotating fan 83, the axle center of the rotating fan 83 is rotatably connected with the bottom end of the inner cavity of a box shell 11 through a rotating shaft, when the material shaking device 7 shakes, the reaction force of the material shaking device is transmitted to a rotating motor 18 at the bottom end through the box shell 11 to influence the working stability of the rotating motor 18, so that the vibration of the area where the rotating motor 18 is located is eliminated, meanwhile, when the rotating motor 18 works at high power, a large amount of heat is generated, the ventilating environment is needed for heat dissipation, at the moment, the bearing bent plate 81 shakes under the action of the vibration force to reduce the influence of the rotating motor 18, the brace 82 at both sides of the bearing bent plate 81 moves up and down along the vertical direction under the pulling of the vibration force and the bearing bent plate 81, and the rotating fan 83 moves in a high frequency, the air in the area where the rotating motor 18 is located is driven to effectively dissipate heat of the rotating motor 18.

The specific working process is as follows:

when using the device to process the fodder, through using operation panel 2 to start rotating motor 18, axostylus axostyle 17 begins to rotate, the fodder that drops into in rolling disc 5 goes into the feed cylinder 6 after grinding many times and screens, the qualified fodder of final quality spills from the feed cylinder 6, fall on interception board 16, the shake screening through interception board 16 flows in the defeated flitch 3 on right side and slides to the external world, at this in-process, the device merges technological operation processes such as powder and sieving, the function possesses the diversity, the technological process of production fodder becomes more simple and convenient, the development of productivity has greatly been promoted.

Former fodder is before processing, can be because of air humidity usually, factor such as temperature is agglomerated, directly smash the fodder this moment, not only can prolong kibbling time, and kibbling effect is also not necessarily good, the fodder that drops into hollow sleeve 51 falls into in minute magazine 52, it rotates under axostylus axostyle 17's drive to smash tooth piece 53, carry out preliminary crushing with the fodder piece, and the fodder piece after smashing can get into inside the head of grinding 9 through return bend 54, the head of grinding 9 carries out the circumference along with axostylus axostyle 17's rotation and slides at the inner wall of bell jar 12, the ball 92 of dialling is also rolling this moment, the ball 92 of dialling is at rolling in-process, dial the inside fodder of plagiocephalus hollow tube 91 on the inner wall of bell jar 12, and roll many times, and then the secondary grinding.

Because the fodder passes through the grinding processing of rolling disc 5, the fodder that falls from conical groove 12 has not contained the caking, and the fodder granule at this moment falls to the surface of cone 63 after the cutting grinding of cutting piece 62, and is got rid of to the hollow section of thick bamboo 61 of bevel connection under the centrifugal force effect of cone 63 inside, the fodder passes through the hollow section of thick bamboo 61 centrifugal force effect of bevel connection, and the hollow section of thick bamboo 61 of bevel connection flows out after the screening of bevel connection.

The general processing device needs to use devices such as a conveyor belt to convey the feed to the outside, in order to simplify the process, the material shaking device 7 is used for replacing the conveyor belt to convey the feed, when the rotating motor 18 rotates, the shaft rod 17 drives the rotating disc 72 to rotate, when the rotating disc 72 rotates for a certain angle, the inserting strips 73 are clamped with the clamping grooves in the lower surface of the inclined plane block 71, the inclined plane block 71 moves downwards, when the rotating disc 72 continues to rotate, the inserting strips 73 are separated from the clamping grooves in the lower surface of the inclined plane block 71, the inclined plane block 71 is jacked up and ascended, the process is circularly carried out, the inclined plane block 71 carries out reciprocating shaking, feed particles on the intercepting plate 16 move downwards along the incline under the combined action of self gravity and shaking of the inclined plane block 71, and slide out of the material conveying plate 3.

Tremble material device 7 when vibrations, its reaction force can be conducted on the rotation motor 18 of bottom through case shell 11, the stability of the work of motor 18 is rotated in the influence, so will eliminate the vibrations that rotate motor 18 place region, and simultaneously, rotation motor 18 is carrying out high-power during operation, can produce a large amount of heats, the heat dissipation of ventilation environment is required, bearing bent plate 81 shakes under the effect of vibrations power this moment, reduce the influence of vibrations to rotation motor 18, brace 82 of bearing bent plate 81 both sides is along vertical direction up-and-down motion under the pulling of vibrations power and bearing bent plate 81, fan 83 high frequency fan moves, drive the air in motor 18 place region, effectively dispel the heat to rotation motor 18.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (7)

1. The utility model provides a novel integration fodder granule production facility, includes processing case (1), its characterized in that: the bottom fixedly connected with brace table of processing case (1), the discharge gate has been seted up on the right side of processing case (1), the inner chamber of processing case (1) passes through discharge gate fixedly connected with defeated flitch (3), the bottom of defeated flitch (3) and the last fixed surface of brace table are connected, the right side fixedly connected with operation panel (2) of processing case (1) surface, the inner chamber of operation panel (2) passes through the inside fixed connection of electric wire with processing case (1), the top of processing case (1) has movable uncapping (4) through opening swing joint.

2. The novel integrated feed pellet production equipment as claimed in claim 1, wherein: the processing box (1) comprises a box shell (11), the upper part of the inner cavity of the box shell (11) is rotatably connected with a rolling disc (5), the bottom end of the rolling disc (5) is slidably connected with a conical groove (12), the outer surface of the conical groove (12) is fixedly connected with the inner wall of the box shell (11), the inner wall of the conical groove (12) is fixedly connected with an elastic screen (13), the lower surface of the elastic screen (13) is slidably connected with a lug (14), the outer surface of the lug (14) is fixedly connected with the inner cavity of the conical groove (12), the axle center of the lower surface of the rolling disc (5) is fixedly connected with a shaft lever (17), the middle part of the outer surface of the shaft lever (17) is fixedly connected with a material spraying cylinder (6), the middle part of the inner wall of the box shell (11) is fixedly connected with a material discharging chamber (15), and the bottom end of the inner wall of the material discharging chamber (15) is slidably connected with a material shaking device (7), the material shaking device is characterized in that two sides of the outer surface of the material shaking device (7) are respectively connected with two sides of the inner wall of the material discharging chamber (15) in a sliding mode through guide wheels, the lower portion of the outer surface of the shaft lever (17) is fixedly connected with the bottom end of the material shaking device (7), the bottom end of the shaft lever (17) penetrates through the outer surface of the material discharging chamber (15), the bottom end of the shaft lever (17) is fixedly connected with a rotating motor (18), the lower surface of the rotating motor (18) is fixedly connected with the bottom end of the inner wall of the box shell (11), and two sides of the bottom end of the inner wall of the box shell (11) are rotatably connected with ventilating fans (8) through grooving.

3. A novel integrated feed pellet production facility as claimed in claim 2, wherein: the utility model discloses a grinding wheel, including grinding dish (5), the bottom of hollow sleeve (51) surface has cup jointed branch magazine (52), the inner wall of branch magazine (52) is rotated and is connected with crushing tooth piece (53), the axle center department of smashing tooth piece (53) is connected with the external fixed surface of axostylus axostyle (17), the surface of axostylus axostyle (17) and the bottom sliding connection of branch magazine (52) inner chamber, the inner chamber of branch magazine (52) passes through trompil fixedly connected with return bend (54), the bottom fixedly connected with of return bend (54) grinds head (9).

4. A novel integrated feed pellet production facility as claimed in claim 3, wherein: grind head (9) including plagiocephaly hollow tube (91), the bottom of plagiocephaly hollow tube (91) inner chamber is rotated and is connected with group ball (92), the inner wall sliding connection of ball (92) and bell jar (12) is dialled through the bottom of plagiocephaly hollow tube (91).

5. A novel integrated feed pellet production facility as claimed in claim 2, wherein: the material spraying barrel (6) comprises an inclined-opening hollow barrel (61), the bottom end of the inner wall of the inclined-opening hollow barrel (61) is rotatably connected with a cone pulley (63), the axis of the cone pulley (63) is fixedly connected with the outer surface of a shaft rod (17), the upper surface of the cone pulley (63) is fixedly connected with a cutting sheet (62) through the shaft rod (17), and the outer surface of the cutting sheet (62) is slidably connected with the bottom end of the inner wall of a conical groove (12).

6. A novel integrated feed pellet production facility as claimed in claim 2, wherein: tremble material device (7) and include inclined plane piece (71), the last fixed surface of inclined plane piece (71) is connected with intercepts board (16), the lower surface sliding connection of inclined plane piece (71) has carousel (72), the axle center department of carousel (72) is connected with the external fixed surface of pivot, the last fixed surface of carousel (72) is connected with grafting strip (73), the lower surface swing joint of draw-in groove and inclined plane piece (71) is passed through to the surface of grafting strip (73).

7. A novel integrated feed pellet production facility as claimed in claim 2, wherein: ventilating fan (8) are including bearing bent plate (81), the equal fixedly connected with brace (82) in both ends of bearing bent plate (81) surface, the surface of brace (82) with change the right side fixed connection of fan (83) inner chamber, the axle center department of changing fan (83) is rotated through the pivot and is connected with the bottom of case shell (11) inner chamber.

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