A solid-liquid separation device for chloride solid waste treatment

Abstract

This utility model discloses a solid-liquid separation device for treating chloride solid waste, relating to the field of chloride solid waste treatment technology. The utility model includes a sedimentation tank, a reaction tank fixed to its outer wall, and an inclined plate clarifier fixed to the opposite outer wall of the sedimentation tank. A sludge tank is fixed to the side wall of the sedimentation tank located between the reaction tank and the inclined plate clarifier. An L-shaped plate is fixed to the upper side wall of the sludge tank, and a motor is fixed to the upper end face of the L-shaped plate. A rotating rod connected to the motor's rotating shaft is installed inside the sludge tank. Scrapers are installed on the inner wall of the sludge tank. Sealing plates are bolted to the upper ends of the sedimentation tank, reaction tank, inclined plate clarifier, and sludge tank. This utility model, through the combined use of the sedimentation tank, inclined plate clarifier, and sludge tank, facilitates multi-stage reactions of the solid waste solution, improving solid-liquid separation efficiency. Simultaneously, the cooperation of the scrapers and motor prevents excessive sludge adhesion that could lead to blockage and prevent proper drainage.

Description

Technical Field

[0001] This utility model belongs to the field of chloride solid waste treatment technology, and in particular relates to a solid-liquid separation device for chloride solid waste treatment. Background Technology

[0002] In the polysilicon industry, the generation of chloride solid waste is unavoidable. This solid waste primarily originates from chemical reactions during the production process. Industrial processes such as polysilicon production generate large quantities of chloride-rich solid waste. This type of solid waste has a complex composition, and improper handling can easily cause serious environmental pollution. Currently, the mainstream treatment method for chloride solid waste involves pretreatment such as hydrolysis, followed by adding chemical agents (such as sodium aluminate and lime slurry) to adjust the pH of the solution, causing harmful substances to precipitate. Finally, solid-liquid separation technology is used to separate the harmful solid precipitate from the liquid, thereby achieving the harmless treatment and resource recovery of the waste.

[0003] However, existing equipment suffers from incomplete separation or poor synergy in the sedimentation, reaction, and clarification steps, resulting in low solid-liquid separation efficiency and unstable effluent quality. Furthermore, the sludge settled in existing equipment tends to adhere to the tank walls and bottom, making it difficult to completely remove using traditional sludge removal methods, which can easily cause equipment blockage and affect continuous operation. Therefore, we provide a solid-liquid separation device for chloride solid waste treatment to solve the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a solid-liquid separation device for treating chloride solid waste. By using a sedimentation tank, an inclined plate clarification tank, and a sludge tank in combination, it is possible to facilitate multi-stage reactions of the solid waste solution and improve the solid-liquid separation efficiency. At the same time, the cooperation between the scraper and the motor can prevent excessive sludge adhesion that could lead to blockage and failure to drain the waste.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a solid-liquid separation device for treating chloride solid waste, including a sedimentation tank, a reaction tank fixed to the outer wall of the sedimentation tank, an inclined plate clarifier fixed to the other outer wall of the sedimentation tank opposite to the reaction tank, a sludge tank fixed to the side wall of the sedimentation tank located between the reaction tank and the inclined plate clarifier, an L-shaped plate fixed to the upper side wall of the sludge tank, a motor fixed to the upper end face of the L-shaped plate, a rotating rod connected to the rotating shaft of the motor inside the sludge tank, scraper strips on the inner wall of the sludge tank, and a sealing plate bolted to the upper end face of the sedimentation tank, the reaction tank, the inclined plate clarifier and the sludge tank.

[0006] The present invention is further configured such that an addition pipe connected to the interior is fixed on the outer wall of the reaction tank, and a baffle is provided inside the sedimentation tank.

[0007] The present invention is further configured such that an auxiliary pipe is fixed on the outer wall of the sedimentation tank located above the partition, an air pipe is fixed on the outer wall of the sedimentation tank and is symmetrically arranged with the auxiliary pipe, and an extraction pipe connected to the inside of the sludge tank is fixed on the side wall of the sedimentation tank.

[0008] The present invention is further configured such that the upper end face of the scraper is located below the extraction pipe, and the inner wall of the sedimentation tank located above the partition is provided with a leakage port that communicates with the interior of the inclined plate clarification tank.

[0009] The present invention is further configured such that a tapered tube communicating with the interior of the sludge tank is fixed to the lower end face of the sludge tank, an assembly tube is fixed to the surface wall of the rotating rod, and a linkage cylinder is bolted to the end of the assembly tube.

[0010] The present invention is further configured such that a sleeve with its end located inside the assembly tube is inserted into the inside of the linkage cylinder, and a movable ring connected to the end face of the linkage cylinder is fixed on the other end face of the sleeve.

[0011] The present invention is further configured such that a buffer strip is provided inside the sleeve, and a pressing rod is fixed to the inner wall of the scraper and inserted into the sleeve, and the pressing rod abuts against the end face of the buffer strip.

[0012] This utility model has the following beneficial effects: 1. This utility model involves pumping undissolved precipitates into a sedimentation tank for sedimentation. After sedimentation for a period of time, the precipitate is discharged into a sludge tank. Once the sludge is drained, a surfactant is added to the sedimentation tank to accelerate the precipitation of aluminum hydroxide. The precipitate is then discharged into an inclined plate clarifier for filtration, washing, and drying, thereby separating pure aluminum hydroxide. This achieves multi-stage reaction of the solid waste solution and improves the solid-liquid separation efficiency.

[0013] 2. After the sludge in the sludge tank is drained and processed, the motor can be controlled to work. The motor will drive the scraper to rotate through the rotating rod. The scraper will then slide along the inner wall of the sludge tank, thereby scraping off the sludge adhering to the inner wall of the sludge tank. This can prevent the sludge adhering to the inner wall of the sludge tank from increasing.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a structural combination diagram of the sedimentation tank, reaction tank, inclined plate clarifier and sludge tank in this utility model.

[0018] Figure 3 This is a structural assembly diagram of the motor, rotating rod, and scraper in this utility model.

[0019] Figure 4 This is a cross-sectional view of the motor, rotating rod, and scraper in this utility model.

[0020] Figure 5 This is an exploded view of the structure of the motor, rotating rod, and scraper in this utility model.

[0021] The attached diagram lists the components represented by each number as follows: 1-Sedimentation tank, 101-Auxiliary pipe, 102-Extraction pipe, 103-Gas pipe, 104-Baffle plate, 105-Leakage port, 2-Reaction tank, 201-Addition pipe, 3-Inclined plate clarifier, 4-Sludge tank, 401-L-shaped plate, 402-Conical pipe, 5-Sealing plate, 6-Motor, 601-Rotor, 602-Linkage cylinder, 603-Scraper bar, 604-Buffer bar, 605-Assembly pipe, 606-Extrusion rod, 607-Sleeve, 608-Moving ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1 Please see Figures 1 to 5 This utility model is a solid-liquid separation device for the treatment of chloride solid waste. By using a sedimentation tank 1, an inclined plate clarification tank 3 and a sludge tank 4 in combination, it is possible to facilitate multi-stage reaction of solid waste solution and improve solid-liquid separation efficiency. At the same time, the cooperation between the scraper 603 and the motor 6 can avoid excessive sludge adhesion that could lead to blockage and failure to drain.

[0024] Specifically, the sedimentation tank 1 is included. A reaction tank 2 is fixed to the outer wall of the sedimentation tank 1. An inclined plate clarifier 3 is fixed to the other outer wall of the sedimentation tank 1 opposite to the reaction tank 2. A sludge tank 4 is fixed to the side wall of the sedimentation tank 1 located between the reaction tank 2 and the inclined plate clarifier 3. An L-shaped plate 401 is fixed to the upper side wall of the sludge tank 4. A motor 6 is fixed to the upper end face of the L-shaped plate 401. A rotating rod 601 connected to the rotating shaft of the motor 6 is installed inside the sludge tank 4. A scraper 603 is installed on the inner wall of the sludge tank 4. A sealing plate 5 is bolted to the upper end face of the sedimentation tank 1, the reaction tank 2, the inclined plate clarifier 3 and the sludge tank 4.

[0025] The operation process of this embodiment is as follows: Using the above-mentioned structure, the waste is hydrolyzed through an external regulating tank. At the same time, sodium aluminate, sodium sulfate, and lime milk are poured into reaction tank 2 to adjust the pH value of the solid waste solution in reaction tank 2, so that the chloride in the solid waste solution forms a precipitate. The pH value is increased to dissolve most of the precipitate, while the undissolved precipitate is pumped into sedimentation tank 1 for sedimentation. After sedimentation for a period of time, the precipitate is discharged into sludge tank 4 through the main body. After the sludge is drained, a surfactant is added to sedimentation tank 1 to accelerate the precipitation of aluminum hydroxide, and the precipitate is discharged into inclined plate clarifier 3 for filtration, washing, and drying to separate pure aluminum hydroxide, thereby achieving the separation of solid waste solution. After the sludge in the sludge tank 4 is drained and processed, the motor 6 can be controlled to work. The motor 6 will drive the scraper 603 to rotate through the rotating rod 601. The scraper 603 will then slide along the inner wall of the sludge tank 4, thereby scraping off the sludge adhering to the inner wall of the sludge tank 4. This can prevent the sludge adhering to the inner wall of the sludge tank 4 from increasing.

[0026] Example 2 Please see Figure 1 and Figure 2 Based on Example 1, multiple sets of pipelines are used to add various reactive materials to the reaction tank 2 and the precipitate.

[0027] Specifically, the outer wall of the reaction tank 2 is fixed with an addition pipe 201 that communicates with its interior. The sedimentation tank 1 is equipped with a baffle 104. An auxiliary pipe 101 is fixed on the outer wall of the sedimentation tank 1 above the baffle 104. An air pipe 103 is fixed on the outer wall of the sedimentation tank 1 and is symmetrically arranged with the auxiliary pipe 101. An extraction pipe 102 that communicates with the interior of the sludge tank 4 is fixed on the side wall of the sedimentation tank 1. The upper end face of the scraper 603 is located below the extraction pipe 102. A leakage port 105 that communicates with the interior of the inclined plate clarifier 3 is opened on the inner wall of the sedimentation tank 1 above the baffle 104.

[0028] The operation process of this embodiment is as follows: by using the addition pipe 201, it is convenient to add various materials to the reaction tank 2. At the same time, by using the gas pipe 103 and the auxiliary pipe 101, various reaction materials and gas can be added to the sedimentation tank 1. The extraction pipe 102 used can pump the sludge in the sedimentation tank 1 into the sludge tank 4. And by using the leak port 105, the subsequent sediment in the sedimentation tank 1 can be pumped into the inclined plate clarifier 3 through the pump body from the leak port 105.

[0029] Example 3 Please see Figure 2 , Figure 3 , Figure 4 and Figure 5 Based on Example 1, by using the buffer strip 604 and the scraper 603 together, the scraper 603 can be automatically adjusted according to the condition of the inner wall of the sludge tank 4.

[0030] Specifically, a tapered tube 402 connected to the interior of the sludge tank 4 is fixed to the lower end face of the sludge tank 4. An assembly tube 605 is fixed to the outer wall of the rotating rod 601. A linkage cylinder 602 is bolted to the end of the assembly tube 605. A sleeve 607 with its end inside the assembly tube 605 is inserted into the inside of the linkage cylinder 602. A moving ring 608 connected to the end face of the linkage cylinder 602 is fixed to the other end face of the sleeve 607. A buffer strip 604 is provided inside the sleeve 607. A pressing rod 606 inserted into the inside of the sleeve 607 is fixed to the inner wall of the scraper 603. The pressing rod 606 abuts against the end face of the buffer strip 604.

[0031] The operation process of this embodiment is as follows: When the rotating rod 601 rotates, it drives the squeezing rod 606 and the scraper 603 to slide along the inner wall of the sludge tank 4 through the linkage rod, thereby scraping off the attached sludge on the inner wall of the sludge tank 4. At the same time, when the scraper 603 is squeezed and moves towards the linkage cylinder 602, the scraper 603 slides in the sleeve 607 through the squeezing rod 606 and squeezes the buffer strip 604. Therefore, the scraper 603 can automatically adjust according to the condition of the inner wall of the sludge tank 4. At the same time, the valve on the tapered tube 402 is opened. Opening the sleeve 607 allows the sludge in the sludge tank 4 to be discharged from the inside of the conical tube 402. Since the squeezing rod 606 is not assembled in the sleeve 607, after separating the rotating rod 601 and the motor 6, the rotating rod 601 can be removed from the sludge tank 4, and the squeezing rod 606 can be removed from the sleeve 607. The moving ring 608 can be moved away from the linkage cylinder 602, so that the sleeve 607 can be removed from the linkage cylinder 602. In this way, the buffer strip 604 can be poured out of the sleeve 607, making it easy to replace the buffer strip 604.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A solid-liquid separation device for treating chloride solid waste, characterized in that: The system includes a sedimentation tank (1), a reaction tank (2) is fixed to the outer wall of the sedimentation tank (1), and an inclined plate clarifier (3) is fixed to the other outer wall of the sedimentation tank (1) opposite to the reaction tank (2). A sludge tank (4) is fixed to the side wall of the sedimentation tank (1) located between the reaction tank (2) and the inclined plate clarifier (3). An L-shaped plate (401) is fixed to the upper side wall of the sludge tank (4). A motor (6) is fixed to the upper end face of the L-shaped plate (401). A rotating rod (601) connected to the rotating shaft of the motor (6) is provided inside the sludge tank (4). A scraper (603) is provided on the inner wall of the sludge tank (4). A sealing plate (5) is bolted to the upper end face of the sedimentation tank (1), the reaction tank (2), the inclined plate clarifier (3) and the sludge tank (4).

2. The solid-liquid separation device for chloride solid waste treatment according to claim 1, characterized in that, The outer wall of the reaction tank (2) is fixed with an addition pipe (201) that communicates with the interior, and the interior of the sedimentation tank (1) is provided with a baffle (104).

3. A solid-liquid separation device for treating chloride solid waste according to claim 2, characterized in that, An auxiliary pipe (101) is fixed on the outer wall of the sedimentation tank (1) located above the partition (104). An air pipe (103) is fixed on the outer wall of the sedimentation tank (1) and is symmetrically arranged with the auxiliary pipe (101). An extraction pipe (102) connected to the inside of the sludge tank (4) is fixed on the side wall of the sedimentation tank (1).

4. A solid-liquid separation device for treating chloride solid waste according to claim 3, characterized in that, The upper end face of the scraper (603) is located below the extraction pipe (102), and the inner wall of the sedimentation tank (1) located above the partition (104) is provided with a leakage port (105) that communicates with the interior of the inclined plate clarification tank (3).

5. A solid-liquid separation device for treating chloride solid waste according to claim 1, characterized in that, The sludge tank (4) has a tapered pipe (402) fixed to its lower end face and connected to its interior. The rotating rod (601) has an assembly pipe (605) fixed to its surface wall. The assembly pipe (605) has a bolted connection to a linkage cylinder (602) at its port position.

6. A solid-liquid separation device for chloride solid waste treatment according to claim 5, characterized in that, A sleeve (607) with its end located inside the assembly tube (605) is inserted into the inside of the linkage cylinder (602), and a movable ring (608) that is connected to the end face of the linkage cylinder (602) is fixed to the other end face of the sleeve (607).

7. A solid-liquid separation device for treating chloride solid waste according to claim 6, characterized in that, The sleeve (607) is provided with a buffer strip (604) inside, and the inner wall of the scraper (603) is fixed with a pressing rod (606) inserted into the sleeve (607), and the pressing rod (606) abuts against the end face of the buffer strip (604).

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