Vertical ball mill device suitable for preparing epoxy molding compound

Abstract

The vertical ball mill device comprises a vertical frame, a hollow vertical cylinder is connected in the vertical frame, an inner cylinder is arranged in the hollow vertical cylinder, a bearing seat is arranged in the top of the vertical frame, a coupler is arranged in the bearing seat, one end of the coupler rotationally penetrates through the hollow vertical cylinder and then is connected with a rotating shaft in the inner cylinder, and the other end of the coupler is connected with a rotating shaft in the inner cylinder. A cooling groove is formed between the hollow vertical cylinder and the inner cylinder, a plurality of spraying heads are annularly arranged on the surface of the hollow vertical cylinder and located in the cooling groove, a water tank is arranged on one side of the hollow vertical cylinder, and the high-pressure pump is arranged at the top of the water tank. The surface of the inner cylinder is directly sprayed and cooled through the spraying heads, compared with a traditional water cooling circulation mode, the heat transfer path is greatly shortened, the problems of heat loss and efficiency reduction caused by multi-layer medium transfer are avoided, and the cooling efficiency is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of epoxy molding compound preparation technology, specifically relating to a vertical ball mill device suitable for epoxy molding compound preparation. Background Technology

[0002] Epoxy molding compound is made by mixing and crushing raw materials such as epoxy resin, phenolic resin, and silicon powder in a high-speed mixer, then pulverizing them in a ball mill, and finally extruding them in an extruder. After that, other processes are carried out. When the raw materials are pulverized in the ball mill, a lot of heat is generated due to the friction between the material and the grinding media and the cylinder during the long-term pulverization operation. Therefore, the ball mill needs to be cooled during operation.

[0003] Existing ball mill cooling mechanisms typically use water-cooled circulation to circulate cold water through the ball mill. This involves rapidly cooling the water in the cooling chamber via liquid nitrogen circulation pipes and spiral cooling copper pipes. After cooling, the water in the cooling chamber comes into contact with the ball mill and carries away its heat, thus achieving cooling. However, this method relies on liquid nitrogen circulation pipes and spiral cooling copper pipes to cool the water in the cooling chamber, and then the water comes into contact with the ball mill to dissipate heat. In actual operation, heat transfer needs to pass through multiple media, including the liquid nitrogen circulation pipes, spiral cooling copper pipes, and the inner wall of the ball mill. Compared to direct contact cooling methods, the heat transfer path is longer, resulting in limited heat transfer efficiency and making it difficult to quickly reduce the high temperature of critical parts of the ball mill. Utility Model Content

[0004] The purpose of this invention is to provide a vertical ball mill device suitable for the preparation of epoxy molding compounds, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vertical ball mill apparatus suitable for preparing epoxy molding compounds, comprising:

[0006] The frame has a hollow vertical cylinder connected to it, and an inner cylinder is located inside the hollow vertical cylinder. A bearing seat is located at the top of the frame, and a coupling is located inside the bearing seat. One end of the coupling rotates through the hollow vertical cylinder and connects to a rotating shaft inside the inner cylinder. A cooling groove is provided between the hollow vertical cylinder and the inner cylinder. Several spray heads for cooling the inner cylinder are arranged in a ring on the surface of the hollow vertical cylinder and located in the cooling groove. A water tank is provided on one side of the hollow vertical cylinder, and the cooling water in the water tank is pumped into the hollow vertical cylinder by a high-pressure pump so that the cooling water in the hollow vertical cylinder can be sprayed onto the surface of the inner cylinder through the spray heads.

[0007] Preferably, the high-pressure pump is arranged on the top of the water tank, and the water inlet end of the high-pressure pump is connected with the water tank through a water pipe, and the water outlet end of the high-pressure pump is connected with the hollow vertical cylinder through a pipeline, and one side of the bottom of the water tank is provided with a refrigerator.

[0008] Preferably, the bottom of the cooling tank is connected with the water tank through a recovery pipe, and the bottom of the hollow vertical cylinder is connected with a discharge pipe, and the surface of the discharge pipe is provided with a control valve.

[0009] Preferably, the other end of the shaft coupling is drivingly connected with a speed reducer, and the speed reducer is connected with the stand.

[0010] Preferably, the top of the stand is provided with a motor, the output shaft of the motor is connected with a first sprocket, and one end of the speed reducer is connected with a second sprocket.

[0011] Preferably, the first sprocket and the second sprocket are drivingly connected through a chain.

[0012] Preferably, the surface of the rotating shaft is connected with a plurality of stirring rods, and the surface of the stirring rod is connected with a plurality of arc blocks.

[0013] Preferably, a plurality of steel balls are arranged in the inner cylinder, and the surface of the hollow vertical cylinder is provided with a feeding pipe, and one end of the feeding pipe is connected with the inner cylinder.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] By arranging the cooling tank between the hollow vertical cylinder and the inner cylinder, and conveying the cooling water in the water tank to the spray head through the high-pressure pump, the surface of the inner cylinder can be directly sprayed and cooled through the spray head, and compared with the traditional water cooling circulation mode, the heat transfer path is greatly shortened, the heat loss and efficiency reduction caused by multi-layer medium transfer are avoided, and the cooling efficiency is greatly improved.

[0016] The stirring rod connected with the rotating shaft in the inner cylinder and the arc block on the stirring rod can rotate with the rotating shaft under the drive of the motor, and cooperates with the steel balls in the inner cylinder to fully stir and grind the raw materials, and the arrangement of the stirring rod can effectively prevent material accumulation, so that the raw materials are more evenly distributed in the cylinder, and ensure that each part of the raw materials can fully participate in the grinding process, and meanwhile, the steel balls and the arc blocks continuously impact and rub the materials under the stirring action, so that the materials are more finely crushed, the particle size distribution of the raw materials is more uniform, and higher product quality requirements are met.

[0017] The refrigerator on one side of the water tank can cool the water in the water tank, so as to ensure the low-temperature state of the cooling water, and the recovery pipe at the bottom of the cooling tank can recover the sprayed water into the water tank, so that the cooling water can be recycled, the waste of water resources is reduced, and the utilization rate of water resources is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the utility model;

[0019] Figure 2 It is a sectional view of the utility model;

[0020] Figure 3 It is a plan view of the hollow vertical cylinder of the utility model;

[0021] Figure 4 It is a sectional view of the water tank of the utility model.

[0022] In the figure: 1, stand; 2, hollow vertical cylinder; 3, inner cylinder; 4, bearing seat; 5, shaft coupling; 6, rotating shaft; 7, cooling tank; 8, spray head; 9, water tank; 10, high-pressure pump; 11, water pipe; 12, recovery pipe; 13, discharge pipe; 14, control valve; 15, speed reducer; 16, motor; 17, first sprocket; 18, second sprocket; 19, chain; 20, stirring rod; 21, arc block; 22, steel ball; 23, refrigerator; 24, temperature sensor. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] The utility model provides a kind of vertical ball mill device suitable for epoxy molding compound preparation as shown in Figures 1-4 Including:

[0025] Stand 1 is connected with hollow vertical cylinder 2 in the stand 1, and inner cylinder 3 is arranged in the hollow vertical cylinder 2, the top of the stand 1 is provided with bearing seat 4, and shaft coupling 5 is arranged in the bearing seat 4, one end of the shaft coupling 5 is rotatably penetrated through the hollow vertical cylinder 2 and connected with rotating shaft 6 in the inner cylinder 3, cooling tank 7 is arranged between the hollow vertical cylinder 2 and the inner cylinder 3, a plurality of spray heads 8 for cooling the inner cylinder 3 are arranged in the form of ring on the surface of the hollow vertical cylinder 2 and in the cooling tank 7, water tank 9 is arranged on one side of the hollow vertical cylinder 2, and cooling water in the water tank 9 is pumped into the hollow vertical cylinder 2 by high-pressure pump 10, so that the cooling water in the hollow vertical cylinder 2 can be sprayed to the surface of the inner cylinder 3 by the spray head 8.

[0026] The high-pressure pump 10 is arranged on the top of the water tank 9, and the water inlet end of the high-pressure pump 10 is connected with the water tank 9 through the water pipe 11, the water outlet end of the high-pressure pump 10 is connected with the hollow vertical cylinder 2 through the pipeline, and one side of the bottom of the water tank 9 is provided with a refrigerating device 23, the cooling water flowing back into the water tank 9 through the recovery pipe 12 can be cooled by the refrigerating device 23, and then can be used to spray and cool the inner cylinder 3 again.

[0027] The bottom of the cooling tank 7 is connected with the water tank 9 through the recovery pipe 12, and the bottom of the hollow vertical cylinder 2 is connected with a discharge pipe 13, and the surface of the discharge pipe 13 is provided with a control valve 14.

[0028] The other end of the shaft coupling 5 is drivingly connected with a speed reducer 15, and the speed reducer 15 is connected with the stand 1, and the function of the speed reducer 15 is to adjust the rotating speed and torque output by the motor 16, so that it is more suitable for the grinding requirement of the ball mill inner cylinder 3.

[0029] The top of the stand 1 is provided with a motor 16, the output shaft of the motor 16 is connected with a first sprocket 17, one end of the speed reducer 15 is connected with a second sprocket 18, and the first sprocket 17 and the second sprocket 18 are drivingly connected through a chain 19.

[0030] The surface of the rotating shaft 6 is connected with a plurality of stirring rods 20, and the surface of the stirring rod 20 is connected with a plurality of arc blocks 21, a plurality of steel balls 22 are arranged in the inner cylinder 3, the surface of the hollow vertical cylinder 2 is provided with a feeding pipe 25, and one end of the feeding pipe 25 is connected with the inner cylinder 3, and the steel balls 22 and the arc blocks 21 will continuously impact and rub the materials in the movement process, so that the particles are continuously broken and refined.

[0031] After the motor 16 is started, the output shaft of the motor 16 starts to rotate, driving the first sprocket 17 connected thereto to rotate, since the first sprocket 17 and the second sprocket 18 are drivingly connected through the chain 19, the rotation of the first sprocket 17 will be transmitted to the second sprocket 18 through the chain 19, so that the second sprocket 18 also rotates, and the second sprocket 18 is connected with the speed reducer 15, the rotation of the second sprocket 18 drives the speed reducer 15 to work, the function of the speed reducer 15 is to adjust the rotating speed and torque output by the motor 16, so that it is more suitable for the grinding requirement of the ball mill inner cylinder 3, and the power adjusted by the speed reducer 15 is transmitted to the rotating shaft 6 in the inner cylinder 3 through the shaft coupling 5, the rotating shaft 6 starts to rotate at high speed after receiving the power, thereby driving the stirring rod 20 connected to the surface thereof and the arc blocks 21 on the stirring rod 20 to make circular motion, at the same time, the steel balls 22 placed in the inner cylinder 3 also start to move in the cylinder under the stirring action of the stirring rod 20 and the arc blocks 21, when the raw materials of the epoxy molding compound enter the inner cylinder 3 from the feeding pipe 25, the stirring rod 20 and the arc blocks 21 will continuously stir the materials, so that the materials are uniformly distributed in the inner cylinder 3, avoiding the accumulation of materials in a certain area.

[0032] And the steel ball 22 and the arc block 21 in the process of movement will constantly hit and rub the material, so that the raw material is continuously broken and refined under the strong action of the steel ball 22 and the stirring action of the stirring rod 20 and the arc block 21, and a high-efficiency grinding process is realized until the required particle size is reached.

[0033] When the inner cylinder 3 needs to be cooled, the cooling water in the water tank 9 is sucked into the water inlet end of the high-pressure pump 10 through the water pipe 11 under the strong suction of the high-pressure pump 10, the cooling water is pressurized by the high-pressure pump 10 to increase its pressure, and then the pressurized cooling water is delivered to the hollow vertical cylinder 2 through the pipeline, and the cooling water entering the hollow vertical cylinder 2 will be sprayed in mist or stream form from the spray heads 8 after accumulating to a certain pressure, and uniformly sprayed on the surface of the inner cylinder 3, and when the cooling water sprayed from the spray heads 8 contacts the surface of the inner cylinder 3 with a higher temperature, heat will be quickly transferred from the inner cylinder 3 to the cooling water, and the cooling water will gradually collect at the bottom of the cooling tank 7 under the action of gravity after absorbing heat, and the cooling water collected in the cooling tank 7 can still contact the inner cylinder 3 to cool the inner cylinder 3, until it flows back to the water tank 9 through the recovery pipe 12, and the refrigerating machine 23 arranged at the bottom of the water tank 9 can cool the backflowing water to reduce the temperature of the water in the water tank 9 to a set low temperature state, and the temperature sensor 24 arranged in the water tank 9 can monitor the temperature of the cooling water in real time, and when the temperature sensor 24 in the water tank 9 detects that the water temperature is higher than the set upper limit value (such as 45℃), it will send a signal to the control system, and the control system will control the refrigerating machine 23 at the bottom of the water tank 9 to perform refrigeration cooling operation after receiving the signal, so as to ensure that the cooling water is kept in a lower and stable temperature range, and the water temperature is controlled between 15℃-30℃, so as to provide efficient cooling effect for the inner cylinder 3 of the ball mill;

[0034] And the cooling water cooled by the refrigerating machine 23 can be sucked again by the high-pressure pump 10 and delivered to the hollow vertical cylinder 2 to spray and cool the inner cylinder 3 through the spray heads 8, so as to form a stable cooling circulation system, which can continuously and effectively control the temperature of the inner cylinder 3 within a suitable range and ensure the normal operation of the ball mill and the grinding quality of the material.

[0035] Finally, it should be pointed out that the above description is only a preferred embodiment of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement for some of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A vertical ball mill apparatus suitable for preparing epoxy molding compounds, characterized in that, include: A support frame (1) is connected to a hollow cylinder (2), and an inner cylinder (3) is provided inside the hollow cylinder (2). A bearing seat (4) is provided at the top of the support frame (1), and a coupling (5) is provided inside the bearing seat (4). One end of the coupling (5) rotates through the hollow cylinder (2) and is connected to the rotating shaft (6) inside the inner cylinder (3). A cooling groove (7) is provided between the hollow cylinder (2) and the inner cylinder (3). Several spray heads (8) for cooling the inner cylinder (3) are arranged in a ring on the surface of the hollow cylinder (2) and in the cooling groove (7). A water tank (9) is provided on one side of the hollow cylinder (2), and the cooling water in the water tank (9) is pumped into the hollow cylinder (2) by a high-pressure pump (10) so that the cooling water in the hollow cylinder (2) can be sprayed onto the surface of the inner cylinder (3) through the spray heads (8).

2. The vertical ball mill apparatus for preparing epoxy molding compounds according to claim 1, characterized in that: The high-pressure pump (10) is located on the top of the water tank (9) and the inlet of the high-pressure pump (10) is connected to the water tank (9) through a water pipe (11). The outlet of the high-pressure pump (10) is connected to the hollow vertical cylinder (2) through a pipe. A cooler (23) is provided on one side of the bottom of the water tank (9).

3. The vertical ball mill apparatus for preparing epoxy molding compounds according to claim 1, characterized in that: The bottom of the cooling tank (7) is connected to the water tank (9) through the recovery pipe (12), and the bottom of the hollow vertical cylinder (2) is connected to the discharge pipe (13) and the surface of the discharge pipe (13) is provided with a control valve (14).

4. The vertical ball mill apparatus for preparing epoxy molding compounds according to claim 1, characterized in that: The other end of the coupling (5) is connected to a reducer (15), and the reducer (15) is connected to the upright (1).

5. A vertical ball mill apparatus for preparing epoxy molding compounds according to claim 4, characterized in that: The top of the support frame (1) is equipped with a motor (16), the output shaft of the motor (16) is connected to a first sprocket (17), and one end of the reducer (15) is connected to a second sprocket (18).

6. A vertical ball mill apparatus for preparing epoxy molding compounds according to claim 5, characterized in that: The first sprocket (17) and the second sprocket (18) are connected by a chain (19).

7. A vertical ball mill apparatus for preparing epoxy molding compounds according to claim 1, characterized in that: The rotating shaft (6) has several stirring rods (20) connected to its surface, and the stirring rods (20) have several arc-shaped blocks (21) connected to their surfaces.

8. A vertical ball mill apparatus for preparing epoxy molding compounds according to claim 1, characterized in that: The inner cylinder (3) is provided with a number of steel balls (22), and the surface of the hollow vertical cylinder (2) is provided with a feed pipe (25) and one end of the feed pipe (25) is connected to the inner cylinder (3).

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