A drying device for producing magnesium hydroxide flame retardant

Abstract

The utility model discloses a drying device for magnesium hydroxide flame retardant production, and relates to a drying box in the technical field of magnesium hydroxide flame retardant drying devices, wherein a circulation mechanism and an inner wall scraping mechanism are arranged on the drying box; a plurality of supporting legs are fixedly connected to the outer wall of the drying box, and the circulation mechanism comprises a sleeve arranged in the drying box, a hollow groove is opened on the sleeve, a heating coil is arranged on the inner wall of the hollow groove, and a rotating shaft is rotatably connected to the inner wall of the bottom of the drying box. The utility model includes. The utility model solves the problem that the existing magnesium hydroxide flame retardant drying device is not convenient for fully contacting magnesium hydroxide with hot air during use by arranging a circulation mechanism, and the humidity will increase and the temperature will decrease after the hot air passes through a material layer once, so that the hot air can only dry a layer of material on the surface, and the internal material is difficult to be effectively dried, thereby prolonging the drying time.

Description

Technical Field

[0001] The utility model belongs to the technical field of magnesium hydroxide flame retardant drying devices, in particular to a drying device for magnesium hydroxide flame retardant production. Background Art

[0002] With the rapid development of modern industry and people's increasing attention to fire safety, the demand for flame retardants continues to increase. Magnesium hydroxide, as a high-efficiency and environmentally friendly inorganic flame retardant, has been widely used in many fields such as plastics, rubber, wires and cables. It has the triple functions of flame retardancy, smoke suppression and filling. During the combustion process, it can decompose and absorb a large amount of heat, reduce the temperature of the surface of the burning object, and release water to dilute the combustible gas, thereby playing a flame retardant role. In addition, the products of magnesium hydroxide decomposition are magnesium oxide and water, and no toxic and harmful gases are produced, which meets environmental protection requirements. In the production process of magnesium hydroxide flame retardant, drying is a crucial link, so it needs to be dried.

[0003] However, the existing magnesium hydroxide flame retardant drying device is not convenient for the magnesium hydroxide to fully contact with the hot air during use. After the hot air passes through the material layer once, the humidity will increase and the temperature will decrease, so that the hot air can only dry a layer of material on the surface, and the internal material is difficult to be effectively dried, thereby prolonging the drying time. Utility Model Content

[0004] The utility model aims to provide a drying device for producing magnesium hydroxide flame retardant. By setting a circulation mechanism, the utility model solves the problem that the existing magnesium hydroxide flame retardant drying device is not convenient for fully contacting magnesium hydroxide with hot air during use, and the humidity will increase and the temperature will decrease after the hot air passes through a material layer once, so that the hot air can only dry a layer of material on the surface, and the internal material is difficult to be effectively dried, thereby prolonging the drying time.

[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 drying device for producing magnesium hydroxide flame retardant, comprising a drying box, on which a circulation mechanism and an inner wall scraping mechanism are arranged;

[0007] A plurality of supporting legs are fixedly connected to the outer wall of the drying box, the circulation mechanism comprises a sleeve arranged in the drying box, the sleeve is provided with a hollow groove, a heating coil is arranged on the inner wall of the hollow groove, a rotating shaft is rotatably connected to the inner wall of the bottom of the drying box, the bottom of the rotating shaft rotates and extends outside the drying box, the top of the rotating shaft passes through the sleeve, and a spiral blade is fixedly connected to the outer wall of the rotating shaft.

[0008] Furthermore, a motor is fixedly connected to the bottom of the drying box, and the output shaft of the motor is fixedly connected to the rotating shaft through a coupling. A plurality of support rods are fixedly connected to the bottom of the sleeve, and the bottoms of the plurality of support rods are fixedly connected to the drying box.

[0009] Furthermore, a funnel is fixedly connected to the top of the drying box, and a coarse filter plate is fixedly connected to the inner wall of the funnel. By setting the coarse filter plate, when the magnesium hydroxide raw material is poured in, the coarse filter plate will filter it to prevent larger particles from directly entering the device.

[0010] Furthermore, a door is hingedly provided on the front side of the drying box, and a handle is fixedly connected to the outer wall of the door. After drying is completed, the handle can be pulled to open the door and take out the magnesium hydroxide raw material dried in the drying box.

[0011] Furthermore, the inner wall scraping mechanism includes a plurality of connecting rods fixedly connected to the top extension of the rotating shaft, a plurality of connecting rods are fixedly connected to a scraper on one side away from the rotating shaft, and a plurality of scrapers are in contact with the inner wall of the drying box on one side away from the rotating shaft.

[0012] Furthermore, a rotation groove is provided on the drying box, a clamp ring is fixedly connected to the outer wall of the rotating shaft, and the outer wall of the clamp ring rotates and extends into the rotation groove.

[0013] The utility model has the following beneficial effects:

[0014] 1. By setting a circulation mechanism, after magnesium hydroxide is poured into the drying box, the heating coil in the hollow groove can be turned on to start heating, and then the motor is started, the motor will drive the rotating shaft to rotate, and the rotating shaft will drive the spiral blade to rotate. When the spiral blade rotates, the magnesium hydroxide raw material at the bottom of the drying box will pass through the sleeve and be transmitted to the top, and when the magnesium hydroxide is transmitted to the top of the sleeve, it will fall back to the bottom of the drying box, and the reciprocating cycle is used to complete the drying of the magnesium hydroxide raw material, so that it can be ensured that the magnesium hydroxide in the drying box has the opportunity to evenly contact the heat generated by the heating coil, avoiding the situation that the magnesium hydroxide at the bottom or inside is not fully dried due to the difficulty in heat transfer, and the magnesium hydroxide close to the heating source will not be over-dried;

[0015] 2. By setting up the inner wall scraping mechanism, when the rotating shaft drives the spiral blade to rotate, the rotating shaft will also drive the scraper to rotate through the connecting rod. Since the outer wall of the scraper is in contact with the inner wall of the drying box, the scraper will scrape the inner wall of the drying box when the scraper rotates, and the raw materials attached to the inner wall of the drying box will fall off, so that more raw materials can be ensured to participate in the normal drying cycle process, avoiding the waste of raw materials, thereby improving the recovery rate of the product, avoiding the uneven drying phenomenon caused by part of the raw materials attached to the inner wall, and ensuring the consistency of the quality of the magnesium hydroxide flame retardant product.

[0016] 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

[0017] 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.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a partial cross-sectional structural schematic diagram of the circulation mechanism of the utility model;

[0020] Figure 3 It is a partial cross-sectional structural schematic diagram of the inner wall scraping mechanism of the utility model;

[0021] Figure 4 For this utility model Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0022] Figure 5 For this utility model Figure 2 Schematic diagram of the enlarged structure of B.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Drying box; 101. Support legs; 102. Funnel; 103. Coarse filter plate; 104. Box door; 105. Handle; 2. Circulation mechanism; 211. Sleeve; 212. Hollow groove; 213. Heating coil; 214. Rotating shaft; 215. Spiral blade; 216. Motor; 217. Support rod; 3. Inner wall scraping mechanism; 311. Connecting rod; 312. Scraper; 313. Rotating groove; 314. Snap ring. DETAILED DESCRIPTION

[0025] 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 in 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.

[0026] See also Figure 1-5 As shown, the utility model is a drying device for producing magnesium hydroxide flame retardant, comprising a drying box 1, on which a circulation mechanism 2 and an inner wall scraping mechanism 3 are arranged, a plurality of supporting legs 101 are fixedly connected to the outer wall of the drying box 1, the circulation mechanism 2 comprises a sleeve 211 arranged in the drying box 1, a hollow groove 212 is opened on the sleeve 211, a heating coil 213 is arranged on the inner wall of the hollow groove 212, a rotating shaft 214 is rotatably connected to the inner wall of the bottom of the drying box 1, the bottom of the rotating shaft 214 rotates and extends to the outside of the drying box 1, the top of the rotating shaft 214 passes through the sleeve 211, and the outer wall of the rotating shaft 214 is fixed A spiral blade 215 is connected, a motor 216 is fixedly connected to the bottom of the drying box 1, the output shaft of the motor 216 is fixedly connected to the rotating shaft 214 through a coupling, and a plurality of support rods 217 are fixedly connected to the bottom of the sleeve 211, and the bottoms of the plurality of support rods 217 are fixedly connected to the drying box 1. By setting up a circulation mechanism 2, it can be ensured that the magnesium hydroxide in the drying box 1 has the opportunity to evenly contact the heat generated by the heating coil 213, thereby avoiding the situation that the magnesium hydroxide at the bottom or inside is not dried sufficiently due to the difficulty in heat transfer, and the magnesium hydroxide close to the heating source is not over-dried.

[0027] The top of the drying box 1 is fixedly connected with a funnel 102, the inner wall of the funnel 102 is fixedly connected with a coarse filter plate 103, the front side of the drying box 1 is hingedly provided with a box door 104, the outer wall of the box door 104 is fixedly connected with a handle 105, the inner wall scraping mechanism 3 includes a plurality of connecting rods 311 fixedly connected to the top extension of the rotating shaft 214, the plurality of connecting rods 311 are fixedly connected with a scraper 312 on one side away from the rotating shaft 214, and the plurality of scrapers 312 are fixedly connected with the drying box on one side away from the rotating shaft 214. 1, a rotating groove 313 is provided on the drying box 1, a clamping ring 314 is fixedly connected to the outer wall of the rotating shaft 214, and the outer wall of the clamping ring 314 rotates and extends into the rotating groove 313. By setting the inner wall scraping mechanism 3, more raw materials can be ensured to participate in the normal drying cycle process, thereby avoiding the waste of raw materials, thereby improving the recovery rate of the product, avoiding the occurrence of uneven drying caused by part of the raw materials adhering to the inner wall, and ensuring the consistency of the quality of the magnesium hydroxide flame retardant product.

[0028] A specific application of this embodiment is as follows: when in use, the device is first placed in a corresponding position, and the magnesium hydroxide raw material to be dried is poured into the drying box 1 through the funnel 102. When pouring, the coarse filter plate 103 will filter it to prevent larger particles from directly entering the device. After the magnesium hydroxide is poured into the drying box 1, the heating coil 213 in the hollow groove 212 can be turned on to start heating, and then the motor 216 is started. The motor 216 will drive the rotating shaft 214 to rotate, and the rotating shaft 214 will drive the spiral blade 215 to rotate. When the spiral blade 215 rotates, the magnesium hydroxide raw material at the bottom of the drying box 1 will pass through the sleeve 211 and It is conveyed to the top, and when the magnesium hydroxide is conveyed to the top of the sleeve 211, it will fall back to the bottom of the drying box 1, and the magnesium hydroxide raw material will be dried in this reciprocating cycle. When the rotating shaft 214 drives the spiral blade 215 to rotate, the rotating shaft 214 will also drive the scraper 312 to rotate through the connecting rod 311. Since the outer wall of the scraper 312 is in contact with the inner wall of the drying box 1, the scraper 312 will scrape the inner wall of the drying box 1 when the scraper 312 rotates, and the raw material attached to the inner wall of the drying box 1 will fall off. After drying, pull the handle 105 to open the box door 104, and take out the magnesium hydroxide raw material dried in the drying box 1.

[0029] 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.

[0030] 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 drying device for producing magnesium hydroxide flame retardant, characterized in that: It comprises a drying box (1), wherein the drying box (1) is provided with a circulation mechanism (2) and an inner wall scraping mechanism (3); A plurality of supporting legs (101) are fixedly connected to the outer wall of the drying box (1); the circulation mechanism (2) comprises a sleeve (211) arranged in the drying box (1); a hollow groove (212) is formed on the sleeve (211); a heating coil (213) is arranged on the inner wall of the hollow groove (212); a rotating shaft (214) is rotatably connected to the inner wall of the bottom of the drying box (1); the bottom of the rotating shaft (214) is rotatably extended to the outside of the drying box (1); the top of the rotating shaft (214) passes through the sleeve (211); and a spiral blade (215) is fixedly connected to the outer wall of the rotating shaft (214).

2. A drying device for producing magnesium hydroxide flame retardant according to claim 1, characterized in that, A motor (216) is fixedly connected to the bottom of the drying box (1); an output shaft of the motor (216) is fixedly connected to the rotating shaft (214) via a coupling; a plurality of support rods (217) are fixedly connected to the bottom of the sleeve (211); and the bottoms of the plurality of support rods (217) are fixedly connected to the drying box (1).

3. A drying device for producing magnesium hydroxide flame retardant according to claim 2, characterized in that, A funnel (102) is fixedly connected to the top of the drying box (1), and a coarse filter plate (103) is fixedly connected to the inner wall of the funnel (102).

4. A drying device for producing magnesium hydroxide flame retardant according to claim 3, characterized in that, The drying box (1) is hingedly provided with a box door (104) on the front side, and a handle (105) is fixedly connected to the outer wall of the box door (104).

5. A drying device for producing magnesium hydroxide flame retardant according to claim 4, characterized in that, The inner wall scraping mechanism (3) comprises a plurality of connecting rods (311) fixedly connected to a top extension portion of a rotating shaft (214); a plurality of connecting rods (311) are fixedly connected to a scraper (312) on one side away from the rotating shaft (214); and a plurality of scrapers (312) are in contact with an inner wall of the drying box (1) on one side away from the rotating shaft (214).

6. A drying device for producing magnesium hydroxide flame retardant according to claim 5, characterized in that: The drying box (1) is provided with a rotation groove (313), and a clamping ring (314) is fixedly connected to the outer wall of the rotating shaft (214), and the outer wall of the clamping ring (314) is rotatably extended into the rotation groove (313).

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