Efficient circulating device for white carbon black pulping

Abstract

The utility model discloses an efficient circulating device for white carbon black pulping, which belongs to the field of white carbon black pulping devices and comprises a pump machine, conveying equipment, a feeding pipe, a stirring motor, a pulping tank, a drainage pipe, a valve, a circulating water pipe, a pulp pumping pipe and a storage tank. The pulping tank with the filter cylinder is arranged, and the pulping tank and the conveying equipment before pulping are connected through the matched circulating water pipe, so that redundant water in the pulping tank can be filtered out by the filter cylinder and then is used for circulating pulping, the situation that unused water is conveyed to a subsequent procedure along with pulp is avoided, the treatment time of the subsequent procedure is saved, and energy is saved; meanwhile, a mode of pulping outside the filter cartridge and filtering water in the middle is adopted, so that when the filter cartridge is used for pulping and stirring, slurry attached to a filter screen on the outer side can be centrifugally thrown away, the condition that the filter cartridge is blocked is reduced, meanwhile, the condition that the slurry is contained in filtered water can be reduced, the slurry can be prevented from participating in circulating conveying, and the pulping efficiency is prevented from being influenced.

Description

Technical Field

[0001] This utility model belongs to the field of silica pulping equipment, and specifically relates to a high-efficiency circulating device for silica pulping. Background Technology

[0002] Silica is a general term for white powdery X-ray amorphous silica and silicate products. In the acid process for producing silica, soluble silicates are reacted with sulfuric acid or other acids. When the reaction solution reaches a certain pH value, the acid reaction is stopped, and the product is aged. Then, it is filtered and repeatedly washed with water to remove Na2SO4. After drying and pulverizing, the finished product is obtained. The filter cake after washing the slurry is made into a slurry through a pulping process. The slurry is then dried with hot air in a dryer to obtain a solid product. However, in current technology, the silica pulping process often uses external water supply to accelerate pulping before drying. After pulping, excess water is transported to subsequent processes along with the slurry, which increases the processing time and energy consumption during subsequent drying and leads to higher water resource consumption. If the slurry is directly extracted for recycling, it is easy to cause repeated pulping, which affects efficiency. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In order to overcome the current technology, the precipitating process of precipitated silica often uses external water supply to accelerate precipitating and then drying. However, after precipitating, excess water is transported to subsequent processes along with the precipitate, which increases the processing time and energy consumption during subsequent drying and also results in high water loss. If the precipitate is directly extracted for recycling, it is easy to cause repeated precipitate transportation and precipitating, which affects efficiency.

[0005] (II) Technical Solution

[0006] This utility model is achieved through the following technical solution: This utility model proposes a high-efficiency circulating device for precipitated silica pulping, the structure of which includes a pump, conveying equipment, feed pipe, stirring motor, pulping tank, drain pipe, valves, circulating water pipe, slurry extraction pipe and storage tank. The conveying equipment is connected to the pulping tank through the feed pipe. The stirring motor is used for stirring the pulping in the pulping tank. The bottom of the pulping tank is provided with a drain pipe. The pulping tank is connected to the conveying equipment through the circulating water pipe and the pump. The pulping tank is also connected to the storage tank through the slurry extraction pipe and the pump. Valves are installed near the pulping tank on the drain pipe, the circulating water pipe and the slurry extraction pipe.

[0007] The pulping tank includes a feed inlet, a stirring rod, a filter cylinder, a tank body, a drainage trough, a water passage hole, and a tank groove. The tank body has a tank groove and a drainage trough inside. The drainage trough is located at the bottom of the tank groove. The drainage pipe and the circulating water pipe are both connected to the drainage trough. The filter cylinder is assembled inside the tank groove. The stirring motor is used to drive the filter cylinder to rotate. The stirring rod is fixed to the outer end face of the filter cylinder. The drainage trough communicates with the inside of the filter cylinder through the water passage hole. The feed inlet is located on the tank body and communicates with the tank groove located on the outer part of the filter cylinder.

[0008] Furthermore, the filter cartridge is funnel-shaped, which further reduces adhesion and facilitates subsequent rinsing of the filter cartridge at the top of the pulping tank.

[0009] Furthermore, the filter cartridge includes a top cover, a filter screen, a connecting rod, and a bottom cover. The top cover is fixedly connected to the bottom cover via the connecting rod, and the filter screen is used to seal the cavity formed between the top cover, the connecting rod, and the bottom cover.

[0010] Furthermore, the filter cartridge also includes a spiral guide plate, which extends spirally from the bottom cover along the inner side of the filter cartridge to the adjacent top cover, so that the slurry that has seeped into the filter cartridge can be transported to the top of the filter cartridge and discharged by the spiral guide plate.

[0011] Furthermore, the filter cartridge also includes a discharge port, a discharge cover plate, and a torsion spring. The discharge port is located on the side of the filter cartridge near the top cover. The bottom of the discharge cover plate is hinged to the side of the filter cartridge near the top cover via the torsion spring. The discharge cover plate is used to cover the discharge port so that the discharge port at the top of the filter cartridge will only open with centrifugal force when the filter cartridge is stirred and rotated, reducing the amount of debris entering the filter cartridge and allowing the slurry rising with the spiral guide plate to be discharged smoothly.

[0012] Furthermore, the bottom of the discharge port is connected to the top of the spiral guide plate.

[0013] Furthermore, the connecting rod has three or more components, which are evenly fixed between the top cover and the bottom cover, and the stirring rod is fixed on the connecting rod.

[0014] Furthermore, the spiral guide plate is fixedly connected to the connecting rod.

[0015] Furthermore, the spiral guide plate is used to spirally lift the silica inside the filter screen to the discharge port.

[0016] Furthermore, the spiral direction of the spiral guide plate is upward along the stirring direction of the stirring motor.

[0017] Furthermore, the connection between the discharge cover and the torsion spring is lower than the bottom of the discharge port.

[0018] Furthermore, the valve is an electrically controlled valve.

[0019] (III) Beneficial Effects

[0020] One of the above technical solutions has the following advantages or beneficial effects:

[0021] By using a pulping tank equipped with a filter cartridge and connecting it to the conveying equipment before pulping via a circulating water pipe, excess water in the pulping tank can be filtered out by the filter cartridge and used for circulating pulping. This avoids unused water being transported with the pulp to subsequent processes, saving processing time in subsequent processes, reducing the need for adding new water, and conserving energy. At the same time, by using an external pulping and internal filtration method, when the filter cartridge is rotated by the stirring motor for pulping and stirring, the pulp adhering to the outer filter screen is also centrifuged and removed, reducing the possibility of filter cartridge clogging. This also reduces the amount of pulp contained in the filtered water, preventing the pulp from participating in the circulating transport and avoiding affecting pulping efficiency. Attached Figure Description

[0022] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the structure of a high-efficiency circulating device for precipitated silica pulp according to the present invention;

[0024] Figure 2 This is a cross-sectional structural diagram of the pulping tank of this utility model;

[0025] Figure 3 This utility model Figure 2 A magnified structural diagram of A in the middle;

[0026] In the diagram: Pump - 1, Conveying equipment - 2, Feed pipe - 3, Agitator motor - 4, Pulping tank - 5, Drain pipe - 6, Valve - 7, Circulating water pipe - 8, Slurry extraction pipe - 9, Storage tank - 10, Feed inlet - 501, Agitator rod - 502, Filter cartridge - 503, Tank body - 504, Drainage trough - 505, Water passage hole - 506, Tank trough - 507, Top cover - 50301, Filter screen - 50302, Connecting rod - 50303, Spiral guide plate - 50304, Bottom cover - 50305, Discharge port - 50306, Discharge cover plate - 50307, ​​Torsion spring - 50308. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the embodiments, but the implementation of the present invention is not limited thereto.

[0028] Example 1

[0029] This utility model provides a high-efficiency circulating device for precipitated silica pulping: its structure includes a pump 1, a conveying device 2, a feed pipe 3, a stirring motor 4, a pulping tank 5, a drain pipe 6, a valve 7, a circulating water pipe 8, a slurry extraction pipe 9, and a storage tank 10. The conveying device 2 is connected to the pulping tank 5 through the feed pipe 3. The stirring motor 4 is used for pulping and stirring in the pulping tank 5. The bottom of the pulping tank 5 is provided with a drain pipe 6. The pulping tank 5 is connected to the pump 1 through the circulating water pipe 8 and the conveying device 2. The pulping tank 5 is also connected to the pump 1 through the slurry extraction pipe 9 and the storage tank 10. The drain pipe 6, the circulating water pipe 8, and the slurry extraction pipe 9 are all equipped with valves 7 near the pulping tank 5.

[0030] The pulping tank 5 includes an inlet 501, a stirring rod 502, a filter cylinder 503, a tank body 504, a drainage trough 505, a water passage 506, and a tank groove 507. The tank body 504 has a tank groove 507 and a drainage trough 505 inside. The drainage trough 505 is located at the bottom of the tank groove 507. The drainage pipe 6 and the circulating water pipe 8 are both connected to the drainage trough 505. The filter cylinder 503 is assembled inside the tank groove 507. The stirring motor 4 is used to drive the filter cylinder 503 to rotate. The stirring rod 502 is fixed on the outer end face of the filter cylinder 503. The drainage trough 505 is connected to the inside of the filter cylinder 503 through the water passage 506. The inlet 501 is located on the tank body 504 and is connected to the part of the tank groove 507 located on the outer side of the filter cylinder 503.

[0031] Among them, valve 7 is an electrically controlled valve.

[0032] In use, the raw materials are conveyed to the feed pipe 3 via the conveying equipment 2, and then enter the tank 507 located outside the filter cylinder 503 through the feed inlet 501 of the pulping tank 5. At this time, the stirring motor 4 can drive the filter cylinder 503 to rotate, so that the stirring rod 502 outside the filter cylinder 503 can stir and pulp the raw materials. During this process, excess water will be filtered out in the middle of the filter cylinder 503. The water will enter the drain tank 505 through the water inlet 506. The water can be circulated by controlling the valve 7 of the circulating water pipe 8 to open and the pump 1 of the circulating water pipe 8 to start. The pump 1 will draw water from the drain tank 505 into the... The pulping and reuse process in conveying equipment 2 avoids the waste water being transported with the pulp to subsequent processes, saving processing time in subsequent processes, reducing the addition of new water, and saving energy. At the same time, the external pulping and internal filtration of the filter cartridge 503 are adopted. When the filter cartridge 503 is driven by the stirring motor 4 to rotate and mix the pulp, the pulp adhering to the outer filter screen is also centrifuged and removed, reducing the possibility of the filter cartridge 503 being blocked. At the same time, it can reduce the amount of pulp in the filtered water, avoid the pulp participating in the circulation and transportation, and avoid affecting the pulping efficiency. It can also soak and mix the raw materials before pulping, increasing the efficiency of subsequent pulping.

[0033] Example 2

[0034] In one embodiment, the filter cartridge 503 is funnel-shaped with a sloping filtration design, which can further reduce adhesion and facilitate subsequent rinsing of the filter cartridge 503 at the top of the pulping tank 5.

[0035] Example 3

[0036] In one embodiment, the filter cartridge 503 includes a top cover 50301, a filter screen 50302, a connecting rod 50303, and a bottom cover 50305. The top cover 50301 is fixedly connected to the bottom cover 50305 via the connecting rod 50303. The filter screen 50302 is used to cover the cavity formed between the top cover 50301, the connecting rod 50303, and the bottom cover 50305.

[0037] The filter cartridge 503 also includes a spiral guide plate 50304, which extends spirally from the bottom cover 50305 along the inner side of the filter cartridge 503 to the adjacent top cover 50301.

[0038] The filter cartridge 503 further includes a discharge port 50306, a discharge cover plate 50307, ​​and a torsion spring 50308. The discharge port 50306 is disposed through the side of the filter cartridge 503 near the top cover 50301. The bottom of the discharge cover plate 50307 is hinged to the side of the filter cartridge 503 near the top cover 50301 via the torsion spring 50308. The discharge cover plate 50307 is used to cover the discharge port 50306.

[0039] The bottom of the discharge port 50306 is connected to the top of the spiral guide plate 50304.

[0040] The connecting rod 50303 has three or more members, which are evenly fixed between the top cover 50301 and the bottom cover 50305. The stirring rod 502 is fixed on the connecting rod 50303.

[0041] The spiral guide plate 50304 is fixedly connected to the connecting rod 50303.

[0042] The spiral guide plate 50304 is used to spirally lift the silica inside the filter screen 50302 to the discharge port 50306.

[0043] The spiral direction of the spiral guide plate 50304 is upward along the stirring direction of the stirring motor 4.

[0044] The connection between the discharge cover plate 50307 and the torsion spring 50308 is lower than the bottom of the discharge port 50306.

[0045] While ensuring the strength of the filter cartridge 503, the slurry that seeps into the filter cartridge 503 can be transported by the spiral guide plate 50304 to the discharge port 50306 at the top of the filter cartridge 503 for discharge. The discharge port 50306 will only open with centrifugation when the equipment is stirred and rotated, reducing the amount of impurities entering the filter cartridge 503 and allowing the slurry that rises with the spiral guide plate 50304 to be discharged smoothly.

[0046] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0047] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-efficiency circulating device for precipitated silica pulp, characterized in that: The system includes a pump (1), a conveying device (2), a feed pipe (3), a stirring motor (4), a pulping tank (5), a drain pipe (6), a valve (7), a circulating water pipe (8), a slurry extraction pipe (9), and a storage tank (10). The conveying device (2) is connected to the pulping tank (5) through the feed pipe (3). The stirring motor (4) is used for pulping and stirring in the pulping tank (5). The bottom of the pulping tank (5) is provided with a drain pipe (6). The pulping tank (5) is connected to the pump (1) through the circulating water pipe (8). The pulping tank (5) is also connected to the pump (1) through the slurry extraction pipe (9). The drain pipe (6), the circulating water pipe (8), and the slurry extraction pipe (9) are all equipped with valves (7) near the pulping tank (5). The pulping tank (5) includes an inlet (501), a stirring rod (502), a filter cylinder (503), a tank body (504), a drainage trough (505), a water passage (506), and a tank trough (507). The tank body (504) is equipped with a tank trough (507) and a drainage trough (505). The drainage trough (505) is located at the bottom of the tank trough (507). The drainage pipe (6) and the circulating water pipe (8) are both connected to the drainage trough (505). The filter cylinder (503) is assembled inside the tank (507). The stirring motor (4) is used to drive the filter cylinder (503) to rotate. The stirring rod (502) is fixed on the outer end face of the filter cylinder (503). The drainage groove (505) communicates with the inside of the filter cylinder (503) through the water passage (506). The feed inlet (501) is located on the tank body (504). The feed inlet (501) communicates with the part of the tank (507) located on the outer side of the filter cylinder (503).

2. The high-efficiency circulating device for white carbon black pulping according to claim 1, characterized in that: The filter cartridge (503) is funnel-shaped.

3. The high-efficiency circulating device for white carbon black pulping according to claim 1 or 2, characterized in that: The filter cartridge (503) includes a top cover (50301), a filter screen (50302), a connecting rod (50303), and a bottom cover (50305). The top cover (50301) is fixedly connected to the bottom cover (50305) via the connecting rod (50303). The filter screen (50302) is used to cover the cavity formed between the top cover (50301), the connecting rod (50303), and the bottom cover (50305).

4. The high-efficiency white carbon black pulping circulating device according to claim 3, characterized in that: The filter cartridge (503) also includes a spiral guide plate (50304), which extends spirally from the bottom cover (50305) along the inner side of the filter cartridge (503) to the adjacent top cover (50301).

5. The high-efficiency circulating device for white carbon black pulping according to claim 4, characterized in that: The filter cartridge (503) also includes a discharge port (50306), a discharge cover plate (50307), and a torsion spring (50308). The discharge port (50306) is disposed through the side of the filter cartridge (503) near the top cover (50301). The bottom of the discharge cover plate (50307) is hinged to the side of the filter cartridge (503) near the top cover (50301) via the torsion spring (50308). The discharge cover plate (50307) is used to cover the discharge port (50306).

6. The high-efficiency circulating device for white carbon black pulping according to claim 5, characterized in that: The bottom of the discharge port (50306) is connected to the top of the spiral guide plate (50304).

7. The high-efficiency circulating device for white carbon black pulping according to claim 3, characterized in that: The connecting rod (50303) has three or more rods, which are evenly fixed between the top cover (50301) and the bottom cover (50305), and the stirring rod (502) is fixed on the connecting rod (50303).

8. The high-efficiency circulating device for white carbon black pulping according to claim 4, characterized in that: The spiral guide plate (50304) is fixedly connected to the connecting rod (50303).

9. The high-efficiency circulating device for white carbon black pulping according to claim 5, characterized in that: The spiral guide plate (50304) is used to spirally lift the silica inside the filter screen (50302) to the discharge port (50306).

10. The high-efficiency circulating device for white carbon black pulping according to claim 5, characterized in that: The connection between the discharge cover plate (50307) and the torsion spring (50308) is lower than the bottom of the discharge port (50306).

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