Drying treatment device for m-phenylenedimaleimide

Abstract

The utility model discloses a drying treatment device for m-phenylenedimaleimide, and relates to the technical field of bismaleimide. The device comprises a discharging hopper, a drying box and a water storage box, an air blower penetrates through and is clamped to the top of the discharging hopper, a heating grinding pipe penetrates through and is clamped to the bottom of the discharging hopper, the drying box penetrates through and is clamped to the bottom of the heating grinding pipe, a first woven mesh pipe is clamped and fixed in the drying box, and a spiral conveying assembly is attached to the interior of the first woven mesh pipe; a water storage tank is arranged at one end of the drying box. By arranging the discharging hopper, the drying box and the water storage tank, the problems that drying and grinding of produced m-phenylenedimaleimide consume long time, when the drying device dries the m-phenylenedimaleimide in a heating mode, the temperature needs to be monitored at any time, and the working efficiency is high are solved. And through an air cooling drying mode, the separation net needs to be cleaned in time.

Description

Technical Field

[0001] The utility model belongs to the technical field of bismaleimide, in particular to a drying treatment device for meta-phenylene bismaleimide. Background Art

[0002] N`-m-phenylene bismaleimide, scientific name N, N'-m-phenylene bismaleimide, is a chemical substance insoluble in petroleum ether, chloroform, benzene and water. It is yellow or brown powder in appearance. As a multifunctional rubber additive, it can be used as a vulcanizer, a vulcanizer for peroxide system, a scorch retarder and a tackifier in the rubber processing process. It is suitable for general rubber, special rubber and rubber-plastic system. In natural rubber, it can prevent vulcanization reversion, improve heat resistance, reduce heat generation, resist aging, and improve the adhesion between rubber and cord and the modulus of vulcanized rubber. In the production and processing of m-phenylene bismaleimide, the solid m-phenylene bismaleimide produced needs to be cleaned and dried for further processing. The flow of air driven by the drying device or the heating of the material can greatly increase the evaporation rate of water and improve the drying efficiency. However, it still has the following disadvantages in actual use:

[0003] 1. When the m-phenylene bismaleimide is dried, the drying device often dries the m-phenylene bismaleimide particles with larger particles. When the m-phenylene bismaleimide is used, the m-phenylene bismaleimide powder with a certain particle fineness is often required. The drying device often takes a certain amount of time in the process of drying the material, and it also takes a certain amount of time to crush the material by the crushing device, which reduces the production efficiency of the m-phenylene bismaleimide powder.

[0004] 2. When the drying device heats and dries the material, it often directly heats the material at a high temperature to evaporate the water quickly. However, the melting point of m-phenylene bismaleimide is low, and the composition of m-phenylene bismaleimide particles is not 100% m-phenylene bismaleimide. The actual melting point may be lower than that of m-phenylene bismaleimide. Direct heating and drying may cause m-phenylene bismaleimide to melt. It is necessary to monitor the temperature of m-phenylene bismaleimide at any time. The blower drives the flow of air to air-cool the m-phenylene bismaleimide particles. It is often necessary to set a partition to prevent the m-phenylene bismaleimide particles from escaping with the air. However, small particles of m-phenylene bismaleimide are prone to blockage of the partition in the process of constantly hitting the partition, which is not convenient for discharging. Utility Model Content

[0005] The utility model aims to provide a drying processing device for metaphenylene bismaleimide. Through a feeding hopper, a drying box and a water storage tank, the problem that the produced metaphenylene bismaleimide often needs to be ground into particles of a specified size after drying is solved, and both drying and grinding take a long time, which reduces production efficiency. When the drying device dries the metaphenylene bismaleimide by heating, the temperature needs to be monitored at all times to avoid hot melting of the metaphenylene bismaleimide, and the screen needs to be cleaned in time by air-cooled drying to avoid the problem of particles clogging the screen.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a drying treatment device for metaphenylene bismaleimide, comprising a feeding hopper, a drying box and a water storage tank, wherein a blower is inserted through the top of the feeding hopper, a heating grinding tube is inserted through the bottom of the feeding hopper, a grinding roller is arranged in the heating grinding tube, a drying box is inserted through the bottom of the heating grinding tube, a first braided mesh tube is fixed in the drying box, a spiral conveying assembly is attached to the first braided mesh tube, a water storage tank is arranged at the bottom of one end of the drying box, and a condensing tube is inserted through the top of the water storage tank;

[0008] When the blower drives the air to flow downward, it can drive the m-phenylene bismaleimide particles to move downward, and make the undrained water on the surface of the m-phenylene bismaleimide particles fall quickly into the drying box under the action of gravity, thereby improving the drying effect and increasing the speed of the material passing through the heated grinding tube. The material is ground and crushed by the rotation of the grinding roller in the heated grinding tube, and the m-phenylene bismaleimide particles are ground into a specified size, thereby improving the production efficiency of the m-phenylene bismaleimide powder. The heated grinding tube can heat the m-phenylene bismaleimide particles, thereby improving the drying efficiency. At the same time, the flow of air will take away part of the heat, thereby avoiding the m-phenylene bismaleimide The particles are overheated and there is no need to monitor the temperature in real time. The m-phenylene bismaleimide particles basically complete the drying operation after falling into the first woven mesh tube, and the rotation of the spiral conveying assembly drives the m-phenylene bismaleimide powder to enter the discharge pipe for discharge, while the air quickly passes through the first woven mesh tube and enters the water storage tank, avoiding the need for air to be discharged through the partition net, thus avoiding the problem of m-phenylene bismaleimide powder easily clogging the partition net during discharge. When the hot air containing moisture is discharged through the condenser, the moisture can be condensed through the condenser, so that the water droplets fall into the water storage tank under the action of gravity for storage, which is convenient for subsequent treatment of the condensed water.

[0009] Furthermore, a feeding hopper is welded through the top of the outer peripheral surface of the unloading hopper, a one-way valve is clamped through the outer peripheral surface of the feeding hopper, a heat preservation sleeve is clamped and fixed on the outer peripheral surface of the heating grinding tube, and a support frame is clamped and fixed on the bottom edge of the unloading hopper;

[0010] Pour the cleaned granular material into the inner side of the feed hopper. The material falls into the discharge hopper under the action of gravity for drying and crushing. The one-way valve can prevent air from being discharged through the feed hopper to ensure the discharge and drying efficiency of the material. The flow of air driven by the blower can speed up the speed of the material passing through the discharge hopper and air-cooling and drying the material.

[0011] Furthermore, a transmission assembly is inserted through the outer circumference of the material discharge hopper, a crushing motor is inserted into the top of one side of the transmission assembly, a first rotating rod is inserted into the bottom of the other side of the transmission assembly, a stirring blade is welded and fixed to the outer circumference of the first rotating rod, and the grinding roller is inserted and fixed to the bottom of the first rotating rod;

[0012] By rotating the motor, the stirring blade and the grinding roller can be driven to rotate, so that the material particles can move in the discharge hopper, avoiding the material being blocked at the top of the heated grinding tube, which makes it difficult for air to pass through the heated grinding tube. The material can be ground and crushed through the gap between the heated grinding tube and the grinding roller, saving or eliminating the subsequent crushing time of the material and improving production efficiency. The heated grinding tube can heat the material, further improving the drying efficiency of the material. At the same time, the flowing air can prevent the material from heating up too high and avoid hot melting of the material.

[0013] Furthermore, the top of the outer circumference of the first braided mesh tube is penetrated and welded to the second braided mesh tube, the second braided mesh tube is penetrated and connected to the bottom of the heating and grinding tube, a discharge pipe is penetrated and welded at one end of the drying box, a solenoid valve is penetrated and connected to the outer circumference of the discharge pipe, and the discharge pipe is penetrated and connected to the first braided mesh tube;

[0014] The material is poured into the first braided mesh tube through the second braided mesh tube, and the rotation of the spiral conveying assembly drives the material to move along the first braided mesh tube to the discharge pipe and discharge the material, while the air quickly passes through the first braided mesh tube and enters the water storage tank, avoiding the need for air to be discharged through the partition mesh, and avoiding the problem of the partition mesh being easily blocked by the metaphenylene bismaleimide powder during discharge.

[0015] Furthermore, a rotating motor is fixedly connected to one end of the drying box, and a second rotating rod is connected to one end of the rotating motor, the spiral conveying assembly is welded and fixed to the outer circumference of the second rotating rod, the second rotating rod is inserted through one end of the drying box, and the rotating motor is located at the other end of the drying box relative to the discharge pipe;

[0016] The second rotating rod is driven to rotate by the rotating motor, which further drives the rotation of the spiral feeding assembly, so that the material enters the discharge pipe for storage. The solenoid valve can prevent the material from being directly discharged and prevent air from being discharged through the discharge pipe.

[0017] Furthermore, a water outlet pipe is welded through the top of the water storage tank, a heat dissipation fin is welded and fixed to the outer peripheral surface of the condenser tube, a drain pipe is welded through the bottom of one end of the water storage tank, and the top of the water outlet pipe is connected to the bottom of one end of the drying box;

[0018] After the hot air enters the water tank through the outlet pipe, it is discharged through the condenser. The heat dissipation area of ​​the condenser can be greatly increased through the heat dissipation fins, so that the hot air containing moisture is quickly cooled when passing through the condenser. The moisture condenses into water droplets and falls back into the water tank, making it easy to collect and process the cleaning water.

[0019] The utility model has the following beneficial effects:

[0020] 1. The utility model solves the problem that when m-phenylene bismaleimide is dried, the drying device often dries the m-phenylene bismaleimide particles with larger particles produced, and when m-phenylene bismaleimide is used, m-phenylene bismaleimide powder with a certain particle fineness is often required, the drying device often takes a certain time in the process of drying the material, and it also takes a certain time to grind the material by the grinding device, which reduces the production efficiency of the m-phenylene bismaleimide powder. When the blower drives the air flow to air-cool the material for air-drying, the rotating motor drives the stirring blade and the grinding roller to rotate at the same time to grind the material, and the air drives the material to move downward, so that the material is quickly heated and ground in the grinding tube, saving or eliminating the subsequent grinding time of the material and improving production efficiency.

[0021] 2. The utility model solves the problem that when the drying device heats and dries the material, the material is often directly heated at high temperature to evaporate the water quickly. However, the melting point of m-phenylene bismaleimide is low, and the composition of m-phenylene bismaleimide particles is not 100% m-phenylene bismaleimide. The actual melting point may be lower than that of m-phenylene bismaleimide. Direct heating and drying may cause m-phenylene bismaleimide to melt. It is necessary to monitor the temperature of m-phenylene bismaleimide at any time. The blower drives the flow of air to cool and dry the m-phenylene bismaleimide particles. It is often necessary to set a partition to prevent the m-phenylene bismaleimide particles from escaping with the air. However, small particles of m-phenylene bismaleimide Maleimide is prone to clogging of the screen in the process of constantly hitting the screen, making it difficult to discharge the material. When the blower drives the air flow to extrude and air-dry the material, the material being ground can be heated by heating the grinding tube to further increase the evaporation rate of water. At the same time, the flowing air takes away part of the heat to prevent the material from overheating. After the material falls into the first woven mesh tube, the drying process is basically completed. The first woven mesh tube only limits the powder material and drives the material to be discharged through the rotation of the spiral conveying assembly. The flowing air directly enters the water storage tank and is discharged, avoiding the need for air to be discharged through the screen, thus avoiding the problem of the m-phenylene bismaleimide powder easily clogging the screen during discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural effect diagram of the utility model;

[0023] Figure 2 This is a structural diagram of the material discharge hopper and the blower of the utility model;

[0024] Figure 3 It is a cross-sectional view of the material discharge hopper of the utility model;

[0025] Figure 4 It is a cross-sectional view of the drying box of the utility model;

[0026] Figure 5 It is a structural diagram of the water storage tank of the utility model.

[0027] Reference numerals:

[0028] 1. Discharge hopper; 101. Feed hopper; 102. Blower; 103. Crushing motor; 104. Heating grinding tube; 105. One-way valve; 106. Support frame; 107. Transmission assembly; 108. First rotating rod; 109. Insulation sleeve; 110. Grinding roller; 111. Stirring blade; 2. Drying box; 201. Rotating motor; 202. Discharge pipe; 203. Second rotating rod; 204. Screw conveying assembly; 205. Solenoid valve; 206. First braided mesh tube; 207. Second braided mesh tube; 3. Water storage tank; 301. Condenser; 302. Water outlet pipe; 303. Heat dissipation fins; 304. Drain pipe. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0030] See also Figure 1-5 As shown, the utility model is a drying treatment device for meta-phenylene bismaleimide, comprising a feeding hopper 1, a drying box 2 and a water storage tank 3, a blower 102 is inserted through the top of the feeding hopper 1, a heating grinding tube 104 is inserted through the bottom of the feeding hopper 1, a grinding roller 110 is arranged in the heating grinding tube 104, a drying box 2 is inserted through the bottom of the heating grinding tube 104, a first braided mesh tube 206 is fixedly fixed in the drying box 2, a spiral conveying assembly 204 is attached to the first braided mesh tube 206, a water storage tank 3 is arranged at the bottom of one end of the drying box 2, and a condensing tube 301 is welded through the top of the water storage tank 3;

[0031] The cleaned m-phenylene bismaleimide particles are poured into the feeding hopper 1 through the feeding hopper 101, and the blower 102 drives the air to flow downward, so that the m-phenylene bismaleimide particles move downward along the feeding hopper 1, and the water not drained on the surface of the m-phenylene bismaleimide particles falls quickly into the drying box 2 under the action of gravity, and the grinding motor 103 drives the grinding roller 110 to rotate, and the material is ground and crushed in the heated grinding tube 104 by the rotation of the grinding roller 110, and the m-phenylene bismaleimide particles are ground into a specified size, and the m-phenylene bismaleimide particles are ground into a specified size. The heating grinding tube 104 heats the m-phenylene bismaleimide particles, so that the residual water on the surface of the particles evaporates quickly and flows into the water storage tank 3 with the air. The m-phenylene bismaleimide powder ground to a specified fineness falls into the first braided mesh tube 206 under the action of gravity and air flow, and moves along the first braided mesh tube 206 with the rotation of the spiral conveying assembly 204, and finally accumulates in the discharge pipe 202. The flowing hot air enters the water storage tank 3 and is cooled by the condenser 301, so that the evaporated water is condensed and collected in the water storage tank 3.

[0032] Among them Figure 1-3As shown, a feed hopper 101 is welded through the top of the outer circumference of the discharge hopper 1, a one-way valve 105 is clamped through the outer circumference of the feed hopper 101, a heat preservation sleeve 109 is clamped and fixed to the outer circumference of the heating and grinding tube 104, a support frame 106 is clamped and fixed to the bottom edge of the discharge hopper 1, a transmission component 107 is clamped through the outer circumference of the discharge hopper 1, a crushing motor 103 is clamped on the top of one side of the transmission component 107, a first rotating rod 108 is clamped on the bottom of the other side of the transmission component 107, a stirring blade 111 is welded and fixed on the outer circumference of the first rotating rod 108, and a grinding roller 110 is clamped and fixed to the bottom of the first rotating rod 108;

[0033] The cleaned particulate material is poured into the inner side of the feed hopper 101, and the material falls into the discharge hopper 1 under the action of gravity. The crushing motor 103 drives the first rotating rod 108 to rotate through the transmission assembly 107, and further drives the stirring blade 111 and the grinding roller 110 to rotate, so as to stir the material and grind and crush the particles that fall between the heated grinding tube 104 and the grinding roller 110. At the same time, the heated grinding tube 104 heats the material and heats and dries the material. At the same time, the blower 102 drives the air to flow downward, dries the material through the air flow, and increases the speed at which the material passes through the heated grinding tube 104.

[0034] Among them Figure 1 , 4 As shown, the top of the outer circumference of the first braided mesh tube 206 is penetrated and welded to the second braided mesh tube 207, the second braided mesh tube 207 and the bottom of the heating and grinding tube 104 are penetrated and connected, a discharge pipe 202 is penetrated and welded at one end of the drying box 2, a solenoid valve 205 is penetrated and connected to the outer circumference of the discharge pipe 202, the discharge pipe 202 and the first braided mesh tube 206 are penetrated and connected, a rotating motor 201 is clamped and fixed at one end of the drying box 2, and a second rotating rod 203 is clamped at one end of the rotating motor 201, the spiral conveying component 204 is welded and fixed to the outer circumference of the second rotating rod 203, the second rotating rod 203 is penetrated and plugged into one end of the drying box 2, and the rotating motor 201 is located at the other end of the drying box 2 relative to the discharge pipe 202;

[0035] The material is poured into the first braided mesh tube 206 through the second braided mesh tube 207, and the second rotating rod 203 is driven to rotate by the rotating motor 201, which further drives the rotation of the spiral conveying assembly 204, so that the material moves along the first braided mesh tube 206 to the discharge pipe 202 and is discharged, and the air quickly passes through the second braided mesh tube 207 and enters the water tank 3. After the processing is completed, the solenoid valve 205 is opened to discharge the metaphenylene bismaleimide powder accumulated in the discharge pipe 202.

[0036] Among them Figure 1 , 5As shown, a water outlet pipe 302 is welded through the top of the water storage tank 3, a heat dissipation fin 303 is welded and fixed to the outer peripheral surface of the condenser tube 301, a drain pipe 304 is welded through the bottom of one end of the water storage tank 3, and the top of the water outlet pipe 302 is connected to the bottom of one end of the drying box 2;

[0037] After the hot air enters the water tank 3 through the water outlet pipe 302, it is discharged through the condenser 301. The hot air cools down rapidly when passing through the condenser 301, and the moisture condenses into water droplets and falls back into the water tank 3. When the water in the water tank 3 reaches a certain amount, the drain pipe 304 is opened to discharge the water for disposal.

[0038] The specific working principle of the utility model is as follows: the cleaned bismaleimide granular material is poured into the inner side of the feed hopper 101 and the drying device is started. The material falls into the discharge hopper 1 under the action of gravity. The crushing motor 103 drives the first rotating rod 108 to rotate through the transmission component 107, and further drives the stirring blade 111 and the grinding roller 110 to rotate, stirs the material, and grinds and crushes the particles that fall between the heated grinding tube 104 and the grinding roller 110. At the same time, the heated grinding tube 104 heats the material, heats and dries the material, and at the same time, the blower 102 drives the air to flow downward, and dries the material through the air flow. The imide powder is poured into the first braided mesh tube 206 through the second braided mesh tube 207, and the rotation of the second rotating rod 203 is driven by the rotating motor 201, which further drives the rotation of the spiral conveying assembly 204, so that the material moves along the first braided mesh tube 206 to the discharge pipe 202. At the same time, the air quickly passes through the second braided mesh tube 207 and the water outlet pipe 302 to enter the water storage tank 3. The hot air is quickly cooled when discharged through the condenser 301, and the moisture condenses into water droplets and falls back into the water storage tank 3. When the water in the water storage tank 3 reaches a certain amount, the drain pipe 304 is opened to discharge the water for processing. After the processing is completed, the solenoid valve 205 is opened to discharge the metaphenylene bismaleimide powder accumulated in the discharge pipe 202.

[0039] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A drying treatment device for meta-phenylene bismaleimide, comprising a feeding hopper (1), a drying box (2) and a water storage tank (3), characterized in that: A blower (102) is inserted through the top of the material discharge hopper (1), a heating and grinding tube (104) is inserted through the bottom of the material discharge hopper (1), a grinding roller (110) is arranged inside the heating and grinding tube (104), a drying box (2) is inserted through the bottom of the heating and grinding tube (104), a first braided mesh tube (206) is fixedly fixed inside the drying box (2), a spiral conveying assembly (204) is fitted inside the first braided mesh tube (206), a water storage tank (3) is arranged at the bottom of one end of the drying box (2), and a condensing tube (301) is welded through the top of the water storage tank (3).

2. The drying treatment device for meta-phenylene bismaleimide according to claim 1, characterized in that: A feed hopper (101) is welded through the top of the outer peripheral surface of the discharge hopper (1), a one-way valve (105) is clamped through the outer peripheral surface of the feed hopper (101), a heat-insulating sleeve (109) is clamped and fixed to the outer peripheral surface of the heating grinding tube (104), and a support frame (106) is clamped and fixed to the bottom edge of the discharge hopper (1).

3. The drying treatment device for meta-phenylene bismaleimide according to claim 1, characterized in that: A transmission assembly (107) is clamped through the outer circumference of the material discharge hopper (1), a grinding motor (103) is clamped on the top of one side of the transmission assembly (107), a first rotating rod (108) is clamped on the bottom of the other side of the transmission assembly (107), a stirring blade (111) is welded and fixed on the outer circumference of the first rotating rod (108), and the grinding roller (110) is clamped and fixed to the bottom of the first rotating rod (108).

4. The drying treatment device for meta-phenylene bismaleimide according to claim 1, characterized in that: The top of the outer circumference of the first braided mesh tube (206) is welded to the second braided mesh tube (207), the second braided mesh tube (207) and the bottom of the heating and grinding tube (104) are connected through penetration, a discharge pipe (202) is welded through one end of the drying box (2), a solenoid valve (205) is clamped through the outer circumference of the discharge pipe (202), and the discharge pipe (202) and the first braided mesh tube (206) are connected through penetration.

5. The drying treatment device for meta-phenylene bismaleimide according to claim 4, characterized in that: A rotating motor (201) is fixedly connected to one end of the drying box (2), and a second rotating rod (203) is fixedly connected to one end of the rotating motor (201). The spiral conveying assembly (204) is welded and fixed to the outer peripheral surface of the second rotating rod (203). The second rotating rod (203) penetrates and is inserted into one end of the drying box (2). The rotating motor (201) is located at the other end of the drying box (2) relative to the discharge pipe (202).

6. The drying treatment device for meta-phenylene bismaleimide according to claim 1, characterized in that: A water outlet pipe (302) is welded through the top of the water storage tank (3), a heat dissipation fin (303) is welded and fixed to the outer peripheral surface of the condensing pipe (301), a drainage pipe (304) is welded through the bottom of one end of the water storage tank (3), and the top of the water outlet pipe (302) is connected to the bottom of one end of the drying box (2).

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