A feeding device for producing a composite flame retardant

Abstract

The utility model discloses a kind of feeding devices for producing composite flame retardant, it is related to composite flame retardant production technical field.The utility model includes feeding bin, the top of the inner wall of feeding bin is equipped with filter screen, further includes: cleaning mechanism, the cleaning mechanism is arranged in the inside of feeding bin, the cleaning mechanism is used to clean dust adhered to the bottom of filter screen.The utility model is by being provided with cleaning mechanism, specifically is to start motor drives rotating shaft to rotate clockwise, fixed column extruded by spiral groove will drive moving frame to descend vertically along spiral groove, two springs are compressed, when fixed column moves to the bottom end of spiral groove, will enter chute, rotating shaft continues to rotate and make fixed column lose extrusion, two spring elastic force promotes moving frame and rubber block to move up fast and collide with the bottom of filter screen, after fixed column moves to the top of chute, reenter the top end of spiral groove, such reciprocating motion can make rubber block to filter screen carry out sustained and effective impact, make a large amount of dust adhered to its bottom fall off.

Description

Technical Field

[0001] This utility model belongs to the field of composite flame retardant production technology, and in particular relates to a feeding device for producing composite flame retardants. Background Technology

[0002] The feeding device for producing composite flame retardants is an integrated device specially designed for the characteristics of composite flame retardants, which are mostly powder-based raw materials. It aims to solve problems such as dust pollution, clumping and blockage, and low automation in traditional feeding methods. Its core function is to realize the orderly input, pretreatment (such as breaking up clumps) and clean operation of flame retardant raw materials, so as to provide a stable supply of raw materials for subsequent mixing and reaction processes.

[0003] Traditional feeding devices use fans and filters to prevent dust leakage during the feeding process. However, after prolonged use, a large amount of dust accumulates on the filter surface, causing the filter holes to become clogged and obstructing gas flow. This requires workers to use tools to remove and clean the filter. However, the frequent disassembly and cleaning of the filter after a period of use increases the workload of workers and consumes a lot of time, leading to a decrease in overall production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a feeding device for producing composite flame retardants. By setting up a cleaning mechanism, specifically, a motor drives a rotating shaft to rotate clockwise. The fixed column, squeezed by the spiral groove, moves a movable frame vertically downwards along the spiral groove. Two springs are compressed. When the fixed column reaches the bottom of the spiral groove, it enters the inclined groove. The rotating shaft continues to rotate, causing the fixed column to lose its compression. The elastic force of the two springs pushes the movable frame and rubber block upwards quickly, colliding with the bottom of the filter screen. After the fixed column reaches the top of the inclined groove, it re-enters the top of the spiral groove. This reciprocating motion allows the rubber block to continuously and effectively impact the filter screen, causing a large amount of dust adhering to its bottom to fall off. This solves the problem that existing feeding devices require cleaning of the filter screen after a period of use, and frequent disassembly and cleaning increase the workload of workers and consume a lot of time, leading to reduced production efficiency.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a feeding device for producing composite flame retardants, comprising a feeding hopper, a door hinged to the front of the feeding hopper, a filter screen installed on the top of the inner wall of the feeding hopper, a fan installed on the top of the feeding hopper, and a discharge hopper fixedly connected to the bottom of the feeding hopper, and further comprising:

[0007] A cleaning mechanism, located inside the feeding hopper, is used to clean dust adhering to the bottom of the filter screen. The cleaning mechanism includes a movable frame, with two lifting columns fixedly connected to the top of the frame, and rubber blocks fixedly connected to the tops of the two lifting columns; and...

[0008] A crushing mechanism is provided at the bottom of the feeding hopper and is used to crush lumpy materials.

[0009] The bin door has an observation window on the front, the rubber block is made of rubber, and the fan is used to clean the dust inside the feeding bin.

[0010] Furthermore, a dustproof plate is fixedly connected to the front of the inner wall of the feeding hopper, a bottom plate is fixedly connected to the bottom of the inner wall of the dustproof plate, a motor is installed on the top of the bottom plate, and a middle plate is fixedly connected to the inner wall of the dustproof plate.

[0011] The base plate is used to support the motor, and the middle plate is positioned above the base plate.

[0012] Furthermore, a dust cover is fixedly connected to the back of the feeding bin, and several rotating rods one and two are rotatably connected to the bottom of the feeding bin. Several crushing rods are fixedly connected to the outer surfaces of rotating rods one and two.

[0013] Among them, several of the rotating rods 1 and 2 are staggered, and several breaking rods on the outer surface of rotating rod 1 and several breaking rods on the outer surface of rotating rod 2 are staggered. The length of rotating rod 1 is shorter than the length of rotating rod 2.

[0014] Furthermore, a rotating shaft is rotatably connected inside the middle plate, and the outer surface of the rotating shaft is provided with a spiral groove and an inclined groove. The top output end of the motor is fixedly connected to the bottom of the rotating shaft through a coupling.

[0015] The spiral groove is spirally arranged, the inclined groove is inclined, and the top and bottom of the spiral groove are connected to the inclined groove.

[0016] Furthermore, two guide columns are fixedly connected to the top of the middle plate, and a fixed column is fixedly connected to the back of the movable frame. The movable frame is slidably limited to the two guide columns, and the fixed column is slidably limited to the spiral groove and the inclined groove.

[0017] The movable frame is U-shaped, and the two guide columns are located on the left and right sides of the top of the middle plate.

[0018] Furthermore, a spring is fitted on the outer surface of the guide column, the top end of the spring is fixedly connected to the bottom of the movable frame, the bottom end of the spring is fixedly connected to the top of the middle plate, a top plate is fixedly connected to the top of the inner wall of the dustproof plate, the top ends of the two guide columns are fixedly connected to the bottom of the top plate, the top of the rotating shaft is rotatably connected to the top plate, and the two lifting columns are slidably limited to the top plate.

[0019] The two lifting columns are located on the left and right sides of the top of the mobile frame. The bottom plate and the middle plate work together to form a sealed cavity for the dustproof plate.

[0020] Furthermore, two anti-displacement rings are fixedly connected to the outer surfaces of both the first rotating rod and the second rotating rod. A gear is fixedly connected to one end of the back of the first rotating rod, and a gear is fixedly connected to one end of the back of the second rotating rod.

[0021] Among them, several anti-displacement rings are respectively distributed on the front and back of the outer surface of rotating rod one and rotating rod two, and the several anti-displacement rings are used to prevent rotating rod one and rotating rod two from shifting.

[0022] Furthermore, an electric push rod 1 is fixedly connected to the back of the feeding bin, and an electric push rod 2 is fixedly connected to the back of the discharging bin. A rack is fixedly connected to the right output end of both the electric push rod 1 and the electric push rod 2. An annular groove is opened inside the rack. A support block is fixedly connected to the back of both the feeding bin and the discharging bin. The annular groove and the support block are slidably limited. The rack located above meshes with several gears 1, and the rack located below meshes with several gears 2.

[0023] The two racks are located on different planes, and the length of the support block is shorter than the length of the annular groove.

[0024] This utility model has the following beneficial effects:

[0025] 1. This utility model features a cleaning mechanism. Specifically, a motor drives a rotating shaft to rotate clockwise. The fixed column, squeezed by the spiral groove, moves the movable frame vertically downward along the spiral groove. Two springs are compressed. When the fixed column reaches the bottom of the spiral groove, it enters the inclined groove. The rotating shaft continues to rotate, causing the fixed column to lose its compression. The elastic force of the two springs pushes the movable frame and rubber block to move upward quickly and collide with the bottom of the filter screen. After the fixed column reaches the top of the inclined groove, it re-enters the top of the spiral groove. This reciprocating motion allows the rubber block to continuously and effectively impact the filter screen, causing a large amount of dust adhering to its bottom to fall off.

[0026] 2. This utility model incorporates a crushing mechanism. Specifically, by activating electric push rod one and electric push rod two, material is poured into the feeding hopper. Electric push rod one extends, driving the upper rack to move to the right, causing several gears to rotate clockwise. Rotating rod one and its crushing rods rotate clockwise accordingly. Electric push rod two extends synchronously, driving several gears to rotate counterclockwise via the lower rack. Rotating rod two and its crushing rods rotate counterclockwise accordingly. Because the crushing rods of adjacent rotating rods one and two are staggered and rotate in opposite directions, they can jointly crush lumpy materials. After electric push rod one and electric push rod two extend to their limits and retract, gear one rotates counterclockwise and gear two rotates clockwise. This process repeats, and through the counterclockwise rotation of rotating rod one and rotating rod two, the crushing rods can effectively crush lumpy materials.

[0027] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the dust cover structure of this utility model;

[0031] Figure 3 This is a schematic diagram of the filter structure of this utility model;

[0032] Figure 4 This is a schematic diagram of the annular groove structure of this utility model;

[0033] Figure 5 This is a schematic diagram of the crusher bar structure of this utility model;

[0034] Figure 6 This is a schematic diagram of the overall structure of the cleaning mechanism of this utility model;

[0035] Figure 7 This is a schematic diagram of the spiral groove structure of this utility model;

[0036] Figure 8 This is a schematic diagram of the inclined groove structure of this utility model.

[0037] The attached diagram lists the components represented by each number as follows:

[0038] 1. Feeding bin; 11. Bin door; 12. Discharge bin; 111. Fan; 112. Filter screen; 2. Cleaning mechanism; 21. Dustproof plate; 22. Base plate; 221. Motor; 23. Middle plate; 231. Rotating shaft; 232. Spiral groove; 233. Inclined groove; 234. Guide column; 235. Moving frame; 236. Fixed column; 237. Spring; 238. Lifting column; 239. Rubber block; 24. Top plate; 3. Crushing mechanism; 31. Dust cover; 32. Rotating rod one; 321. Crushing rod; 322. Anti-displacement ring; 323. Gear one; 324. Electric push rod one; 325. Rack; 326. Annular groove; 327. Support block; 33. Rotating rod two; 331. Gear two; 332. Electric push rod two. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0040] Please see Figures 1-8 As shown, this utility model is a feeding device for producing composite flame retardants, including a feeding bin 1, a bin door 11 hinged to the front of the feeding bin 1, a filter screen 112 installed on the top of the inner wall of the feeding bin 1, a fan 111 installed on the top of the feeding bin 1, and a discharge bin 12 fixedly connected to the bottom of the feeding bin 1, and also includes:

[0041] Cleaning mechanism 2, located inside the feeding hopper 1, is used to clean dust adhering to the bottom of the filter screen 112. Cleaning mechanism 2 includes a movable frame 235, with two lifting columns 238 fixedly connected to the top of the movable frame 235, and rubber blocks 239 fixedly connected to the top of the two lifting columns 238; and...

[0042] The crushing mechanism 3 is located at the bottom of the feeding bin 1 and is used to crush agglomerated materials.

[0043] The bin door 11 has an observation window on the front, the rubber block 239 is made of rubber, and the fan 111 is used to clean the dust inside the feeding bin 1.

[0044] A dustproof plate 21 is fixedly connected to the front of the inner wall of the feeding hopper 1, a bottom plate 22 is fixedly connected to the bottom of the inner wall of the dustproof plate 21, a motor 221 is installed on the top of the bottom plate 22, and a middle plate 23 is fixedly connected to the inner wall of the dustproof plate 21.

[0045] The base plate 22 is used to support the motor 221, and the middle plate 23 is located above the base plate 22.

[0046] A dust cover 31 is fixedly connected to the back of the feeding bin 1. Several rotating rods 32 and 33 are rotatably connected to the bottom of the feeding bin 1. Several crushing rods 321 are fixedly connected to the outer surfaces of the rotating rods 32 and 33.

[0047] Among them, several rotating rods 32 and 33 are staggered, and several breaking rods 321 on the outer surface of rotating rod 32 and several breaking rods 321 on the outer surface of rotating rod 33 are staggered. The length of rotating rod 32 is shorter than the length of rotating rod 33.

[0048] The middle plate 23 is rotatably connected to a rotating shaft 231. The outer surface of the rotating shaft 231 is provided with a spiral groove 232 and an inclined groove 233. The top output end of the motor 221 is fixedly connected to the bottom of the rotating shaft 231 through a coupling.

[0049] The spiral groove 232 is spirally arranged, and the inclined groove 233 is inclined. The top and bottom of the spiral groove 232 are connected to the inclined groove 233.

[0050] Two guide posts 234 are fixedly connected to the top of the middle plate 23, and a fixed post 236 is fixedly connected to the back of the movable frame 235. The movable frame 235 is slidably limited to the two guide posts 234, and the fixed post 236 is slidably limited to the spiral groove 232 and the inclined groove 233.

[0051] The movable frame 235 is U-shaped, with two guide columns 234 distributed on the left and right sides of the top of the middle plate 23.

[0052] A spring 237 is fitted on the outer surface of the guide column 234. One top end of the spring 237 is fixedly connected to the bottom of the movable frame 235, and one bottom end of the spring 237 is fixedly connected to the top of the middle plate 23. A top plate 24 is fixedly connected to the top of the inner wall of the dustproof plate 21. One top end of each of the two guide columns 234 is fixedly connected to the bottom of the top plate 24. The top of the rotating shaft 231 is rotatably connected to the top plate 24. Both lifting columns 238 are slidably limited to the top plate 24. When the starting motor 221 drives the rotating shaft 231 to rotate clockwise, the fixed column 236, which is squeezed by the spiral groove 232, will drive the movable frame. 235 moves vertically downward along the spiral groove 232, and the two springs 237 are compressed. When the fixed column 236 moves to the bottom of the spiral groove 232, it will enter the inclined groove 233. The rotating shaft 231 continues to rotate, causing the fixed column 236 to lose compression. The elastic force of the two springs 237 pushes the moving frame 235 and the rubber block 239 to move up quickly and collide with the bottom of the filter screen 112. After the fixed column 236 moves to the top of the inclined groove 233, it re-enters the top of the spiral groove 232. This reciprocating motion enables the rubber block 239 to continuously and effectively impact the filter screen 112, causing a large amount of dust attached to its bottom to fall off.

[0053] Among them, the two lifting columns 238 are distributed on the left and right sides of the top of the mobile frame 235. The bottom plate 22 and the middle plate 23 work together to form a sealed cavity with the dustproof plate 21.

[0054] Two anti-displacement rings 322 are fixedly connected to the outer surfaces of rotating rod 1 32 and rotating rod 2 33. Gear 1 323 is fixedly connected to one end of the back of rotating rod 1 32, and gear 2 331 is fixedly connected to one end of the back of rotating rod 2 33.

[0055] Among them, several anti-displacement rings 322 are respectively distributed on the front and back of the outer surface of rotating rod 1 32 and rotating rod 2 33, and the several anti-displacement rings 322 are used to prevent rotating rod 1 32 and rotating rod 2 33 from shifting.

[0056] An electric push rod 324 is fixedly connected to the back of the feeding bin 1, and an electric push rod 332 is fixedly connected to the back of the discharging bin 12. Both the right output ends of the electric push rods 324 and 332 are fixedly connected to racks 325. An annular groove 326 is formed inside the rack 325. Support blocks 327 are fixedly connected to the back of both the feeding bin 1 and the discharging bin 12. The annular groove 326 and support blocks 327 are in a sliding limiting engagement. The upper rack 325 meshes with several gears 323, and the lower rack 325 meshes with several gears 331. Activating the electric push rods 324 and 332 pours material into the feeding bin 1. The electric push rod 324 extends, driving the upper... The square rack 325 moves to the right, causing several gears 323 to rotate clockwise. The rotating rod 32 and its crushing rod 321 rotate clockwise accordingly. The electric push rod 332 extends synchronously, driving several gears 331 to rotate counterclockwise through the rack 325 below. The rotating rod 33 and its crushing rod 321 rotate counterclockwise accordingly. Because the crushing rods 321 of adjacent rotating rods 32 and 33 are interlaced and rotate in opposite directions, they can jointly crush agglomerated materials. After the electric push rods 324 and 332 extend to their limit, they retract. Gear 323 rotates counterclockwise and gear 331 rotates clockwise. This process repeats. Through the counterclockwise rotation of rotating rods 32 and 33, the crushing rod 321 can effectively crush agglomerated materials.

[0057] The two racks 325 are located on different planes, and the length of the support block 327 is shorter than the length of the annular groove 326.

[0058] A specific application of this embodiment is as follows: In use, first install the feeding bin 12 on the external processing device, aligning and sealing the bottom of the feeding bin 12 with the hopper of the processing device. Then connect the external discharge pipe to the air outlet of the blower 111. At this time, simultaneously start the electric push rod 1 324 and the electric push rod 2 332. Then open the bin door 11 and pour the material into the feeding bin 1. The material will fall on the top of several rotating rods 1 32 and rotating rod 2 33. The electric push rod 1 324 extends first, driving the upper rack 325 to move to the right. As the rack 325 moves to the right, it will drive several gears 1 323 to rotate clockwise. At this time, several rotating rods 1 32 and several crushing rods 321 on their outer surface will rotate clockwise together. The electric push rod 2 332 also extends and drives several gears 2 331 to rotate counterclockwise through the lower rack 325. At the same time, several The rotating rod 33 and several crushing rods 321 on its outer surface rotate counterclockwise together. Since the crushing rods 321 on the outer surfaces of two adjacent rotating rods 32 and 33 are staggered, and the rotation directions of rotating rods 32 and 33 are opposite, the crushing rods 321 work together to break up the agglomerated material. The broken material falls into the feeding bin 12 through the gap between rotating rods 32 and 33 and the crushing rods 321. After the electric push rods 324 and 332 extend to their limit positions, they begin to retract. At this time, both racks 325 move to the left, and several gears 323 begin to rotate counterclockwise, while several gears 331 begin to rotate clockwise. This process repeats, and through the counterclockwise rotation of rotating rods 32 and 33, the crushing rods 321 can effectively break up the agglomerated material.

[0059] During crushing, the blower 111 generates suction to draw air out of the feeding hopper 1. Dust generated by the crushing process is carried by the airflow to the bottom of the filter screen 112 and separated. The suction of the blower 111 creates a continuous and stable negative pressure within the feeding hopper 1, which, combined with the filter screen 112, effectively prevents dust leakage. After prolonged operation, the filter screen 112 needs to be cleaned. Specifically, the motor 221 is started, driving the rotating shaft 231 to rotate clockwise. Due to the sliding limit engagement between the fixed column 236 and the spiral groove 232 and inclined groove 233, the fixed column 236, squeezed by the spiral groove 232, will... The movable frame 235 moves vertically downward along the spiral groove 232. At this time, the two springs 237 are compressed. When the fixed column 236 moves to the bottom of the spiral groove 232, it will enter the inclined groove 233. The rotating shaft 231 continues to rotate. At this time, the fixed column 236 loses the compression of the spiral groove 232. The two springs 237 push the movable frame 235 and the rubber block 239 to move upward quickly through their own elasticity, and collide with the bottom of the filter screen 112. When the fixed column 236 moves to the top of the inclined groove 233, it will re-enter the top of the spiral groove 232. This repetition allows the rubber block 239 to continuously and effectively impact the filter screen 112.

[0060] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0061] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A feeding device for producing composite flame retardants, comprising a feeding hopper (1), a door (11) hinged to the front of the feeding hopper (1), a filter screen (112) installed on the top of the inner wall of the feeding hopper (1), a fan (111) installed on the top of the feeding hopper (1), and a discharge hopper (12) fixedly connected to the bottom of the feeding hopper (1), characterized in that, Also includes: A cleaning mechanism (2) is installed inside the feeding hopper (1). The cleaning mechanism (2) is used to clean the dust adhering to the bottom of the filter screen (112). The cleaning mechanism (2) includes a movable frame (235). Two lifting columns (238) are fixedly connected to the top of the movable frame (235). Rubber blocks (239) are fixedly connected to the top of the two lifting columns (238). The crushing mechanism (3) is located at the bottom of the feeding bin (1) and is used to crush agglomerated materials. The silo door (11) has an observation window on the front, the rubber block (239) is made of rubber, and the fan (111) is used to clean the dust inside the feeding silo (1).

2. The feeding device for producing composite flame retardants according to claim 1, characterized in that, A dustproof plate (21) is fixedly connected to the front of the inner wall of the feeding bin (1), a bottom plate (22) is fixedly connected to the bottom of the inner wall of the dustproof plate (21), a motor (221) is installed on the top of the bottom plate (22), and a middle plate (23) is fixedly connected to the inner wall of the dustproof plate (21). The base plate (22) is used to support the motor (221), and the middle plate (23) is located above the base plate (22).

3. The feeding device for producing composite flame retardants according to claim 1, characterized in that, The back of the feeding bin (1) is fixedly connected to a dust cover (31), and the bottom of the feeding bin (1) is rotatably connected to several rotating rods one (32) and two rotating rods two (33). Several crushing rods (321) are fixedly connected to the outer surfaces of the rotating rods one (32) and two rotating rods two (33). Among them, several rotating rods one (32) and rotating rod two (33) are staggered, and several breaking rods (321) on the outer surface of rotating rod one (32) and several breaking rods (321) on the outer surface of rotating rod two (33) are staggered. The length of rotating rod one (32) is shorter than the length of rotating rod two (33).

4. A feeding device for producing composite flame retardants according to claim 2, characterized in that, The middle plate (23) is rotatably connected to a rotating shaft (231). The outer surface of the rotating shaft (231) is provided with a spiral groove (232) and an inclined groove (233). The top output end of the motor (221) is fixedly connected to the bottom of the rotating shaft (231) through a coupling. The spiral groove (232) is spirally arranged, the inclined groove (233) is inclined, and the top and bottom of the spiral groove (232) are connected to the inclined groove (233).

5. A feeding device for producing composite flame retardants according to claim 4, characterized in that, The top of the middle plate (23) is fixedly connected to two guide columns (234), and the back of the movable frame (235) is fixedly connected to a fixed column (236). The movable frame (235) is slidably limited to the two guide columns (234), and the fixed column (236) is slidably limited to the spiral groove (232) and the inclined groove (233). The movable frame (235) is U-shaped, and the two guide columns (234) are distributed on the left and right sides of the top of the middle plate (23).

6. A feeding device for producing composite flame retardants according to claim 5, characterized in that, A spring (237) is fitted on the outer surface of the guide column (234). The top end of the spring (237) is fixedly connected to the bottom of the movable frame (235). The bottom end of the spring (237) is fixedly connected to the top of the middle plate (23). A top plate (24) is fixedly connected to the top of the inner wall of the dustproof plate (21). The top ends of the two guide columns (234) are fixedly connected to the bottom of the top plate (24). The top of the rotating shaft (231) is rotatably connected to the top plate (24). The two lifting columns (238) are slidably limited to the top plate (24). Among them, the two lifting columns (238) are distributed on the left and right sides of the top of the mobile frame (235). The bottom plate (22) and the middle plate (23) work together to form a sealed cavity for the dustproof plate (21).

7. A feeding device for producing composite flame retardants according to claim 3, characterized in that, Two anti-displacement rings (322) are fixedly connected to the outer surfaces of the first rotating rod (32) and the second rotating rod (33). A gear (323) is fixedly connected to one end of the back of the first rotating rod (32), and a gear (331) is fixedly connected to one end of the back of the second rotating rod (33). Among them, several anti-displacement rings (322) are respectively distributed on the front and back of the outer surface of rotating rod one (32) and rotating rod two (33), and several anti-displacement rings (322) are used to prevent rotating rod one (32) and rotating rod two (33) from shifting.

8. A feeding device for producing composite flame retardants according to claim 7, characterized in that, The feeding bin (1) is fixedly connected to an electric push rod 1 (324) on the back, and the discharging bin (12) is fixedly connected to an electric push rod 2 (332) on the back. The right output ends of the electric push rod 1 (324) and the electric push rod 2 (332) are both fixedly connected to a rack (325). The rack (325) has an annular groove (326) inside. The feeding bin (1) and the discharging bin (12) are both fixedly connected to a support block (327). The annular groove (326) and the support block (327) are slidably limited. The rack (325) located above is meshed with several gears 1 (323), and the rack (325) located below is meshed with several gears 2 (331). The two racks (325) are located in different planes, and the length of the support block (327) is shorter than the length of the annular groove (326).

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