Feeding device for producing composite flame retardant

Abstract

The utility model discloses a feeding device for producing a composite flame retardant, and relates to the technical field of high polymer material processing. The feeding device comprises a supporting frame, and a dust removal mechanism and a feeding mechanism are arranged on the supporting frame. By arranging the dust removal mechanism, after the bin door on the feeding bin is opened and raw material powder is fed, the raw material powder falls on the plurality of distributing rods in the fixed frame, so that the powder material can sequentially fall from gaps among the plurality of distributing rods, and the phenomenon that the powder material is caked when being fed is avoided; at the moment, when a first motor on a first driving fixing frame drives a first rotating rod and an impeller to rotate, the rotating impeller can extract air in the feeding bin through a dust suction pipe and an air outlet, dust suspended in the feeding bin can be driven to the bottom face of a filtering net piece along with air flowing to be separated, and the situation that in the feeding process, dust cannot be separated from the bottom face of the filtering net piece is avoided; and therefore, a cleaner and safer environment is created for the subsequent feeding of the materials.

Description

Technical Field

[0001] The utility model belongs to the technical field of polymer material processing, in particular to a feeding device for producing a composite flame retardant. Background Art

[0002] Flame retardants are substances used to improve the combustion resistance of materials, that is, they are additives that prevent materials from burning and inhibit the spread of flames. They are widely used in the flame retardancy of synthetic and natural polymer materials. Commonly used flame retardants can be divided into halogen, phosphorus, nitrogen and boron series according to the flame retardant elements they contain. In the process of flame retardant processing, a feeding device is required.

[0003] However, the existing feeding device will generate a large amount of dust when feeding the flame retardant powder. If the dust is not effectively handled, it is likely to cause environmental pollution and health risks to workers. Once the dust is suspended in the air, it will not only cause damage to the respiratory system of the operator, but may also cause safety hazards and increase the risk of fire. Utility Model Content

[0004] The utility model aims to provide a feeding device for producing composite flame retardants. By providing a dust removal mechanism, the pollution and health hazards caused by excessive dust during the feeding process are avoided, a cleaner and safer environment is created for subsequent material feeding, and the problem that a large amount of dust is generated when the flame retardant powder is fed by the existing feeding device is solved. If the dust is not effectively handled, it is likely to cause environmental pollution and health risks to workers.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a feeding device for producing composite flame retardants, comprising a supporting frame, on which a dust removal mechanism and a feeding mechanism are arranged;

[0007] The dust removal mechanism includes a feeding bin fixedly connected to the inner wall of the supporting frame, a bin door is hingedly connected to the front side of the feeding bin, a fixing frame is fixedly connected to the inner wall of the feeding bin, a plurality of feeding rods are fixedly connected to the inner top wall of the feeding bin, a dust suction pipe is fixedly connected to the top of the dust suction pipe, the top end of the dust suction pipe extends to the top of the feeding bin, a filter mesh is fixedly connected to the bottom end of the dust suction pipe, a shell is connected to the top end of the dust suction pipe, a fixing frame 1 is fixedly connected to the top surface of the shell, an air outlet is provided on the outer wall of the shell, a motor 1 is fixedly connected to the inner wall of the fixing frame 1, a rotating rod 1 is fixedly connected to the output end of the motor 1 via a coupling, an impeller is fixedly connected to the bottom end of the rotating rod 1, and the impeller is located inside the shell.

[0008] Furthermore, the inner wall of the dust suction pipe is fixedly connected to two fixing rods, the top ends of the two fixing rods are fixedly connected to a fixing plate one, a sliding rod is slidably passed through the fixing plate one, and the outer wall of the sliding rod is fixedly connected to a baffle, the outer diameter of the baffle is the same as the inner diameter of the dust suction pipe, and the outer wall of the baffle is in contact with the inner wall of the dust suction pipe.

[0009] Furthermore, the bottom end of the sliding rod is fixedly connected with an impact block, the bottom surface of the impact block contacts the top surface of the filter mesh, the top end of the sliding rod is fixedly connected with a gasket, the outer wall of the sliding rod is wrapped with a spring, one end of the spring is fixedly connected to the gasket, and the other end of the spring is fixedly connected to a fixed plate.

[0010] Furthermore, the feeding mechanism includes a circular groove opened on the inner wall of the feeding bin, the inner wall of the circular groove is rotatably connected to a lower hopper, the inner wall of the feeding bin is fixedly connected to a lower feeding frame, and the lower feeding frame is slidably connected to the inner wall of the lower hopper.

[0011] Furthermore, the top surface of the lower hopper is fixedly connected with a bevel gear ring, the outer wall of the feeding bin is fixedly connected with a fixing frame 2, the inner wall of the fixing frame 2 is fixedly connected with a motor 2, the output end of the motor 2 is fixedly connected with a rotating rod 2 via a coupling, the outer wall of the rotating rod 2 is fixedly connected with a bevel gear, and the bevel gear is meshed with the bevel gear ring.

[0012] Furthermore, a plurality of arc-shaped pieces are fixedly connected to the inner wall of the material discharge hopper, a second fixing plate is fixedly connected to the inner wall of the material discharge frame, and a auger rod is fixedly connected to the top surface of the second fixing plate.

[0013] Furthermore, the inner wall of the lower hopper is fixedly connected to a limiting circular ring, the outer wall of the limiting circular ring is rotatably connected to a limiting circular plate, and the bottom surface of the limiting circular plate is fixedly connected to a connecting pipe.

[0014] Furthermore, the inner bottom wall of the support frame is fixedly connected to a fixed seat, the top surface of the fixed seat is fixedly connected to a powder conveying pump, the end of the connecting pipe away from the limiting disc is fixedly connected to the input end of the powder conveying pump, and the output end of the powder conveying pump is fixedly connected to a feeding pipe.

[0015] The utility model has the following beneficial effects:

[0016] 1. A dust removal mechanism is provided. After the door on the feeding bin is opened and the raw material powder is put in, the raw material powder falls on multiple dividing rods in the fixed frame, so that the powder material can fall from the gaps between the multiple dividing rods in sequence, thereby avoiding the agglomeration of the powder material when it is put in. At this time, when the motor 1 on the driving fixed frame drives the rotating rod 1 and the impeller to rotate, the rotating impeller will extract the air inside the feeding bin through the dust suction pipe and the air outlet. At this time, the suspended dust inside the feeding bin will be driven to the bottom surface of the filter mesh with the air flow and separated, thereby avoiding pollution and health hazards caused by excessive dust during the feeding process, and providing a basis for subsequent material feeding. It creates a cleaner and safer environment, and in the process of the impeller rotating rapidly to draw air, a negative pressure state is formed inside the dust suction pipe, so that the external air squeezes the baffle to move upward, driving the slide bar and the impact block to move upward, so that the spring is stretched under the action of the gasket and the fixed plate. At this time, the air inside the feeding bin will flow into the outer casing through the gap between the dust suction pipe and the baffle and be discharged. After turning off the motor, the slide bar is reset under the action of the spring, so that the impact block moves downward and hits the filter mesh, which vibrates slightly, shaking off the powder accumulated on the filter mesh to prevent excessive dust accumulation from affecting the ventilation effect of the filter mesh.

[0017] 2. By setting up a feeding mechanism, the circular groove and the lower hopper cooperate with each other, so that the lower hopper can only rotate on the inner wall of the circular groove. When the motor 2 on the driving fixed frame 2 drives the rotating rod 2 to rotate, it will drive the bevel gear to rotate, so that the bevel gear drives the bevel gear ring to rotate the lower hopper, so that the auger rod is fixed, and the lower hopper rotates around the auger rod to break up the powder that falls into the lower hopper, further preventing the material from agglomerating. At this time, the powder conveying pump can be driven to draw the dispersed material at the bottom of the lower hopper through the connecting pipe to the feeding pipe for feeding, thereby ensuring the stability of the powder feeding and conveying process.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the feeding bin of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the feeding mechanism of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the housing of the utility model;

[0024] Figure 5 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 6 for Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0026] Figure 7 for Figure 3 Schematic diagram of the enlarged structure at point C in the middle.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Support frame; 2. Dust removal mechanism; 3. Feeding mechanism; 21. Feeding bin; 22. Bin door; 23. Fixed frame; 24. Distributing rod; 25. Dust suction pipe; 26. Filter mesh; 27. Shell; 271. Air outlet; 28. Fixed frame 1; 29. ​​Motor 1; 281. Rotating rod 1; 291. Impeller; 292. Fixed rod; 293. Fixed plate 1; 294. Sliding rod; 295. Blocking piece; 296. Impact block; 297. Gasket; 298. Spring; 31. Circular groove; 32. Feed hopper; 33. Feed frame; 34. Bevel gear ring; 35. Fixed frame 2; 36. Motor 2; 37. Rotating rod 2; 38. Bevel gear; 39. Arc piece; 391. Fixed plate 2; 392. Auger rod; 393. Limiting ring; 394. Limiting disc; 395. Connecting pipe; 396. Fixed seat; 397. Powder conveying pump; 398. Feeding pipe. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-7 As shown, the utility model is a feeding device for producing composite flame retardants, comprising a support frame 1, on which a dust removal mechanism 2 and a feeding mechanism 3 are arranged;

[0031] The dust removal mechanism 2 includes a feeding bin 21 fixedly connected to the inner wall of the supporting frame 1, a bin door 22 is hingedly connected to the front side of the feeding bin 21, a fixed frame 23 is fixedly connected to the inner wall of the feeding bin 21, a plurality of material distribution rods 24 are fixedly connected to the inner top wall of the feeding bin 21, a dust suction pipe 25 is fixedly connected to the top of the dust suction pipe 25, a filter mesh 26 is fixedly connected to the bottom end of the dust suction pipe 25, a shell 27 is connected to the top of the dust suction pipe 25, the shell 27 is fixedly connected to the dust suction pipe 25, a fixed frame 28 is fixedly connected to the top surface of the shell 27, and a filter mesh 26 is fixedly connected to the bottom end of the dust suction pipe 25. An air outlet 271 is provided on the outer wall, a motor 29 is fixedly connected to the inner wall of a fixing frame 28, an output end of the motor 29 is fixedly connected to a rotating rod 281 through a coupling, an impeller 291 is fixedly connected to the bottom end of the rotating rod 281, and the impeller 291 is located inside the outer shell 27, two fixing rods 292 are fixedly connected to the inner wall of the dust suction pipe 25, a fixing plate 293 is fixedly connected to the top end of the two fixing rods 292, a sliding rod 294 slides through the fixing plate 293, a baffle 295 is fixedly connected to the outer wall of the sliding rod 294, and the outer diameter of the baffle 295 is the same as the inner diameter of the dust suction pipe 25. The outer wall of 295 fits with the inner wall of the dust suction pipe 25, the bottom end of the slide bar 294 is fixedly connected with an impact block 296, the bottom surface of the impact block 296 contacts the top surface of the filter mesh 26, the top of the slide bar 294 is fixedly connected with a gasket 297, the outer wall of the slide bar 294 is wound with a spring 298, one end of the spring 298 is fixedly connected to the gasket 297, and the other end of the spring 298 is fixedly connected to the fixed plate 293. By setting a dust removal mechanism 2, after the door 22 on the feeding bin 21 is opened and the raw material powder is put in, the raw material powder falls on a plurality of dividing rods 24 in the fixed frame 23, so that the powder material can The powder materials can fall from the gaps between the multiple dividing rods 24 in sequence, thereby preventing the powder materials from agglomerating when being fed. At this time, when the motor 29 on the driving fixed frame 28 drives the rotating rod 281 and the impeller 291 to rotate, the rotating impeller 291 will draw out the air inside the feeding bin 21 through the dust suction pipe 25 and the air outlet 271. At this time, the dust suspended inside the feeding bin 21 will be driven to the bottom surface of the filter mesh 26 with the air flow and separated, thereby avoiding pollution and health hazards caused by excessive dust during the feeding process, and creating a cleaner and safer environment for subsequent material feeding.

[0032] The feeding mechanism 3 includes a circular groove 31 formed on the inner wall of the feeding bin 21, the inner wall of the circular groove 31 is rotatably connected to a feeding hopper 32, the inner wall of the feeding bin 21 is fixedly connected to a feeding frame 33, the feeding frame 33 is slidably connected to the inner wall of the feeding hopper 32, the top surface of the feeding hopper 32 is fixedly connected to a bevel gear ring 34, the outer wall of the feeding bin 21 is fixedly connected to a fixing frame 2 35, the inner wall of the fixing frame 2 35 is fixedly connected to a motor 2 36, the output end of the motor 2 36 is fixedly connected to a rotating rod 2 37 through a coupling, and the rotating rod The outer wall of the second 37 is fixedly connected with a bevel gear 38, which meshes with the bevel gear ring 34. The inner wall of the lower hopper 32 is fixedly connected with a plurality of arc-shaped pieces 39. The inner wall of the lower material frame 33 is fixedly connected with a fixing plate 2 391, and the top surface of the fixing plate 2 391 is fixedly connected with a auger rod 392. The inner wall of the lower hopper 32 is fixedly connected with a limiting circular ring 393, and the outer wall of the limiting circular ring 393 is rotatably connected with a limiting circular piece 394. The bottom surface of the limiting circular piece 394 is fixedly connected with a connecting pipe 395. The support frame 1 The inner bottom wall is fixedly connected with a fixing seat 396, the top surface of the fixing seat 396 is fixedly connected with a powder delivery pump 397, the end of the connecting pipe 395 away from the limiting disc 394 is fixedly connected with the input end of the powder delivery pump 397, and the output end of the powder delivery pump 397 is fixedly connected with a feeding pipe 398. By providing a feeding mechanism 3, the circular groove 31 and the lower hopper 32 cooperate with each other, so that the lower hopper 32 can only rotate on the inner wall of the circular groove 31, and the motor 2 36 on the driving fixed frame 2 35 drives the rotation When rod 2 37 rotates, it will drive the bevel gear 38 to rotate, so that the bevel gear 38 drives the bevel gear ring 34 and the lower hopper 32 to rotate, so that the auger rod 392 is fixed, and the lower hopper 32 rotates around the auger rod 392, and the powder that falls into the lower hopper 32 is broken up, further preventing the material from agglomerating. At this time, the powder conveying pump 397 can be driven to draw the dispersed material at the bottom of the lower hopper 32 through the connecting pipe 395 to the feeding pipe 398 for feeding, thereby ensuring the stability of the powder feeding and conveying process.

[0033] A specific application of this embodiment is: a powder conveying pump 397, which is a pump that achieves the purpose of powder conveying through vacuum suction to generate a strong negative pressure in the tank. Its principle is that when the fan draws air from the powder collecting tank, a strong negative pressure is generated in the tank, and the powder in the powder bag is sucked into the powder collecting tank together with the air through the powder suction pipe. The filter in the powder collecting tank will effectively prevent dust and fine particles from being drawn out with the air; in this process, the pressure accumulator tank next to the powder collecting tank is filled with air of a certain pressure. When the suction is completed, the air in the pressure accumulator tank will be released in an instantaneous pulse to back-blow the filter and blow off the material adsorbed on the filter element, so that the filter element can maintain a normal filtering area and will not affect the output.

[0034] By providing a dust removal mechanism 2, after the bin door 22 on the feeding bin 21 is opened and the raw material powder is put in, the raw material powder falls on the multiple dividing rods 24 in the fixed frame 23, so that the powder material can fall from the gaps between the multiple dividing rods 24 in turn, thereby avoiding the agglomeration of the powder material when it is put in. At this time, when the motor 29 on the driving fixed frame 28 drives the rotating rod 281 and the impeller 291 to rotate, the rotating impeller 291 will draw out the air inside the feeding bin 21 through the dust suction pipe 25 and the air outlet 271. At this time, the dust suspended inside the feeding bin 21 will be driven to the bottom surface of the filter mesh 26 with the air flow and separated, thereby avoiding pollution and health hazards caused by excessive dust during the feeding process, creating a cleaner environment for subsequent material delivery. A clean and safe environment is created, and in the process of the impeller 291 rotating rapidly to draw air, a negative pressure state is formed inside the dust suction pipe 25, so that the external air squeezes the baffle 295 to move upward, driving the slide bar 294 and the impact block 296 to move upward, so that the spring 298 is stretched under the action of the gasket 297 and the fixing plate 293, and at this time, the air inside the feeding bin 21 flows into the housing 27 through the gap between the dust suction pipe 25 and the baffle 295 and is discharged, and after turning off the motor 29, the slide bar 294 is reset under the action of the spring 298, so that the impact block 296 moves downward to impact the filter mesh 26, and the filter mesh 26 vibrates slightly, shaking off the powder accumulated on the filter mesh 26, and preventing excessive dust accumulation from affecting the ventilation effect of the filter mesh 26;

[0035] By providing a feeding mechanism 3, the circular groove 31 and the lower hopper 32 cooperate with each other, so that the lower hopper 32 can only rotate on the inner wall of the circular groove 31, and when the motor 2 36 on the driving fixed frame 2 35 drives the rotating rod 2 37 to rotate, it will drive the bevel gear 38 to rotate, so that the bevel gear 38 drives the bevel gear ring 34 and the lower hopper 32 to rotate, so that the auger rod 392 is fixed, and the lower hopper 32 rotates around the auger rod 392, and the powder falling into the lower hopper 32 is broken up to further prevent the material from agglomerating. At this time, the powder conveying pump 397 can be driven to draw the dispersed material at the bottom of the lower hopper 32 through the connecting pipe 395 to the feeding pipe 398 for feeding, thereby ensuring the stability of the powder feeding and conveying process.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A feeding device for producing a composite flame retardant, characterized in that: It comprises a support frame (1), on which a dust removal mechanism (2) and a feeding mechanism (3) are arranged; The dust removal mechanism (2) comprises a feeding bin (21) fixedly connected to the inner wall of the support frame (1), a bin door (22) being hingedly connected to the front side of the feeding bin (21), a fixing frame (23) being fixedly connected to the inner wall of the feeding bin (21), a plurality of material distribution rods (24) being fixedly connected to the inner wall of the fixing frame (23), a dust suction pipe (25) being fixedly connected to the inner top wall of the feeding bin (21), the top end of the dust suction pipe (25) extending to the top of the feeding bin (21), the bottom end of the dust suction pipe (25) being fixedly connected to a filter mesh (26), the dust suction pipe The top end of the dust collecting tube (25) is connected to a housing (27), the housing (27) is fixedly connected to the dust collecting tube (25), the top surface of the housing (27) is fixedly connected to a fixing frame (28), the outer wall of the housing (27) is provided with an air outlet (271), the inner wall of the fixing frame (28) is fixedly connected to a motor (29), the output end of the motor (29) is fixedly connected to a rotating rod (281) via a coupling, the bottom end of the rotating rod (281) is fixedly connected to an impeller (291), and the impeller (291) is located inside the housing (27).

2. A feeding device for producing a composite flame retardant according to claim 1, characterized in that: The inner wall of the dust suction pipe (25) is fixedly connected to two fixing rods (292), the top ends of the two fixing rods (292) are fixedly connected to a fixing plate 1 (293), a sliding rod (294) is slidably passed through the fixing plate 1 (293), and the outer wall of the sliding rod (294) is fixedly connected to a blocking piece (295), the outer diameter of the blocking piece (295) is the same as the inner diameter of the dust suction pipe (25), and the outer wall of the blocking piece (295) is in contact with the inner wall of the dust suction pipe (25).

3. A feeding device for producing a composite flame retardant according to claim 2, characterized in that: The bottom end of the slide rod (294) is fixedly connected to a collision block (296), the bottom surface of the collision block (296) contacts the top surface of the filter mesh (26), the top end of the slide rod (294) is fixedly connected to a gasket (297), the outer wall of the slide rod (294) is wrapped with a spring (298), one end of the spring (298) is fixedly connected to the gasket (297), and the other end of the spring (298) is fixedly connected to the fixing plate (293).

4. A feeding device for producing a composite flame retardant according to claim 3, characterized in that: The feeding mechanism (3) comprises a circular groove (31) formed on the inner wall of the feeding bin (21); the inner wall of the circular groove (31) is rotatably connected to a feeding hopper (32); the inner wall of the feeding bin (21) is fixedly connected to a feeding frame (33); and the feeding frame (33) is slidably connected to the inner wall of the feeding hopper (32).

5. A feeding device for producing a composite flame retardant according to claim 4, characterized in that: The top surface of the lower hopper (32) is fixedly connected to a bevel gear ring (34), the outer wall of the feeding bin (21) is fixedly connected to a second fixing frame (35), the inner wall of the second fixing frame (35) is fixedly connected to a second motor (36), the output end of the second motor (36) is fixedly connected to a second rotating rod (37) via a coupling, the outer wall of the second rotating rod (37) is fixedly connected to a bevel gear (38), and the bevel gear (38) is meshed with the bevel gear ring (34).

6. A feeding device for producing a composite flame retardant according to claim 5, characterized in that: The inner wall of the material discharge hopper (32) is fixedly connected to a plurality of arc-shaped pieces (39), the inner wall of the material discharge frame (33) is fixedly connected to a second fixing plate (391), and the top surface of the second fixing plate (391) is fixedly connected to a auger rod (392).

7. A feeding device for producing a composite flame retardant according to claim 6, characterized in that: The inner wall of the lower hopper (32) is fixedly connected to a limiting circular ring (393), the outer wall of the limiting circular ring (393) is rotatably connected to a limiting circular plate (394), and the bottom surface of the limiting circular plate (394) is fixedly connected to a connecting pipe (395).

8. A feeding device for producing a composite flame retardant according to claim 7, characterized in that: The inner bottom wall of the support frame (1) is fixedly connected to a fixing seat (396), the top surface of the fixing seat (396) is fixedly connected to a powder conveying pump (397), an end of the connecting pipe (395) away from the limiting disc (394) is fixedly connected to the input end of the powder conveying pump (397), and the output end of the powder conveying pump (397) is fixedly connected to a feeding pipe (398).

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