A polyaluminum chloride solution purification tank

Abstract

The utility model discloses a kind of polyaluminium chloride solution purification tank, relate to solution processing technical field.The utility model includes tank body, solution tank and precipitate separation component, and one end of tank body is fixed with and is detained tray groove, tank body's opening upper end is fixed with tank cover, solution tank is set in the upper end surface of tank cover, the lower end surface of solution tank is communicated with a group of dropping tube, dropping tube penetrates tank cover and extends to tank body, and precipitate separation component is communicated with the bottom end of and is detained tray groove.The utility model is by with polyaluminium chloride solution from tank body one end flows to the other end, sodium sulfide solution in solution tank is added to polyaluminium chloride solution in tank body from dropping tube, when stopping to transport polyaluminium chloride solution to tank body, closing dropping tube, stopping to add sodium sulfide, to avoid excessive addition.

Description

Technical Field

[0001] This utility model belongs to the field of solution treatment technology, and in particular relates to a polyaluminum chloride solution purification tank. Background Technology

[0002] Polyaluminum chloride (PAC) solution is an important inorganic polymeric coagulant used in water treatment for removing some organic matter and heavy metals, sludge dewatering, and oil-water separation. Synthetic PAC solutions contain various heavy metal ion impurities and precipitates. To ensure the coagulation effect of the PAC solution, it needs to be purified. Sodium sulfide precipitation is commonly used for purification. However, excessive addition of sodium sulfide during precipitation can lead to residual S²⁻ polluting the water and interfering with subsequent water treatment processes. Furthermore, insufficient stirring after adding sodium sulfide can result in incomplete reaction, ultimately leading to excessive heavy metal residues.

[0003] To address these issues, we provide a polyaluminum chloride solution purification tank. Utility Model Content

[0004] The purpose of this invention is to provide a polyaluminum chloride solution purification tank. A solution tank is installed on the tank cover at the top of the tank. A set of drip tubes at the bottom of the solution tank passes through the tank cover and extends into the tank, allowing the polyaluminum chloride solution to flow from one end of the tank to the other. Sodium sulfide solution from the solution tank is added to the tank through the drip tubes, dissolving the sodium sulfide in the polyaluminum chloride solution. When the supply of polyaluminum chloride solution to the tank is stopped, the drip tubes are closed, stopping the addition of sodium sulfide and thus preventing over-addition. A retention tray is installed at the end of the tank away from the solution tank. The polyaluminum chloride solution with added sodium sulfide flows into the retention tray for stirring. After thorough stirring, the polyaluminum chloride solution is passed into a precipitation separation component at the bottom of the retention tray to separate precipitated impurities.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a polyaluminum chloride solution purification tank, including a tank body, a solution tank and a precipitation separation component. A retention tray is fixedly provided at one end of the tank body. A tank cover is fixedly covered at the upper end of the opening of the tank body. The solution tank is located on the upper end face of the tank cover. A set of dripping pipes are connected to the lower end face of the solution tank. The dripping pipes pass through the tank cover and extend into the tank body. The precipitation separation component is connected to the bottom end of the retention tray.

[0006] A further feature of this invention is that a float rod clamp is fixedly sleeved inside the upper end of the dropper, and a float rod is vertically slidably sleeved inside the float rod clamp. An arc plate is fixedly connected to the lower end of the float rod clamp in each dropper. The lower end of the arc plate is a downwardly convex arc surface, and the upper end surface of the arc plate is a flat surface. A box cover is fixedly covered at the upper opening of the solution tank. The float rod slides through the box cover. A rod end cap is fixedly provided at the upper end of the float rod. A compression spring is sleeved on the outside of the float rod. The two ends of the compression spring respectively abut against the lower end surface of the rod end cap and the upper end surface of the box cover.

[0007] A further feature of this invention is that a mixing propeller shaft is rotatably installed between the two side plates inside the tank, and a set of mixing propellers is fixedly sleeved on the outer side of the mixing propeller shaft in an axial array. One end of the mixing propeller shaft passes through the side plate of the tank and is connected to the output end of the motor for transmission.

[0008] A further feature of this invention is that a stirring paddle shaft is rotatably sleeved on the cover plate above the retention tray groove, the lower end of the stirring paddle shaft extends into the retention tray groove, a stirring paddle is fixedly sleeved on the lower end of the stirring paddle shaft, and the upper end of the stirring paddle shaft is connected to the output shaft of the motor for transmission.

[0009] A further feature of this invention is that a three-way valve pipe is connected to the lower end of the retention tray, a piston valve is slidably sleeved inside the horizontal pipe of the three-way valve pipe, a cylinder is fixedly installed at one end of the horizontal pipe of the three-way valve pipe, the telescopic end of the cylinder is fixedly connected to the piston valve, and the end of the three-way valve pipe away from the cylinder is connected to the sedimentation separation component.

[0010] A further feature of this invention is that the sedimentation separation assembly includes an outer tank and a filter cylinder, the filter cylinder being rotatably installed inside the outer tank, and the end of the three-way valve pipe away from the cylinder passing through the upper surface of the outer tank and communicating with the filter cylinder.

[0011] A further feature of this invention is that an adapter pipe is rotatably sleeved on the outer side of the three-way valve pipe away from the cylinder. The adapter pipe rotatably passes through the top surface of the outer can, and the lower end of the adapter pipe is fixedly sleeved through the upper surface of the filter screen cylinder. The upper end of the adapter pipe is connected to the output shaft of the motor via a sleeve belt.

[0012] This utility model has the following beneficial effects: 1. This utility model involves setting a solution tank on the tank cover at the upper end of the tank body, and inserting a set of drip tubes at the lower end of the solution tank through the tank cover and into the tank body. Polyaluminum chloride solution flows from one end of the tank body to the other end, and sodium sulfide solution in the solution tank is added into the tank body through the drip tubes, so that sodium sulfide dissolves in polyaluminum chloride solution. When the supply of polyaluminum chloride solution to the tank body is stopped, the drip tubes are closed and the addition of sodium sulfide is stopped, thereby avoiding over-addition. 2. This utility model sets up a retention tray at the end of the tank away from the solution tank, and the polyaluminum chloride with added sodium sulfide flows into the retention tray for stirring. After the stirring is completed, the polyaluminum chloride solution is passed into the precipitation separation component at the lower end of the retention tray to separate the precipitated impurities. Attached Figure Description

[0013] 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. Figure 1 A schematic diagram of a polyaluminum chloride solution purification tank; Figure 2 This is a side sectional view of the tank. Figure 3 This is an exploded view of the tank cover and the tank body; Figure 4 This is an exploded view of the three-way valve pipe and the tank body; Figure 5 This is a schematic diagram showing the decomposition of the precipitation separation component; The attached diagram lists the components represented by each number as follows: 1-Tank body, 101-Retention tray, 101a-Three-way valve pipe, 101a-1-Piston valve, 101a-2-Cylinder, 102-Tank cover, 103-Mixing paddle shaft, 103a-Mixing paddle, 104-Agitator shaft, 104a-Agitator, 2-Solution tank, 201-Drip pipe, 201a-Float rod clamp, 201a-1-Float rod, 201a-2-Arc plate, 201a-3-Rod end cap, 201a-4-Compression spring, 202-Tank cover, 3-Sedimentation separation assembly, 301-Outer tank, 302-Filter screen cylinder, 302a-Transfer pipe. Detailed Implementation

[0014] 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. Example 1

[0015] Please see Figures 1 to 3This utility model relates to a polyaluminum chloride solution purification tank, comprising a tank body 1, a solution tank 2, and a precipitation separation component 3. The solution tank 2 is installed on a tank cover 102 at the upper end of the tank body 1. A set of dripping pipes 201 at the lower end of the solution tank 2 passes through the tank cover 102 and extends into the tank body 1, allowing the polyaluminum chloride solution to flow from one end of the tank body 1 to the other. Sodium sulfide solution from the solution tank 2 is added to the tank body 1 through the dripping pipes 201, dissolving the sodium sulfide in the polyaluminum chloride solution. When the supply of polyaluminum chloride solution to the tank body 1 is stopped, the dripping pipes 201 are closed, stopping the addition of sodium sulfide and thus preventing over-addition. A retention tray 101 is installed at the end of the tank body 1 furthest from the solution tank 2. The polyaluminum chloride solution with added sodium sulfide flows into the retention tray 101 for stirring. After thorough stirring, the polyaluminum chloride solution is passed into the precipitation separation component 3 at the lower end of the retention tray 101 to separate precipitated impurities.

[0016] Specifically, a retention tray 101 is fixedly provided at one end of the tank body 1, and a tank cover 102 is fixedly covered at the upper end of the opening of the tank body 1. The solution tank 2 is set on the upper end face of the tank cover 102, and a set of drip tubes 201 are connected to the lower end face of the solution tank 2. The drip tubes 201 penetrate the tank cover 102 and extend into the tank body 1. The precipitation separation component 3 is connected to the bottom end of the retention tray 101.

[0017] Furthermore, a float rod clamp 201a is fixedly sleeved inside the upper end of the dripping tube 201, and a float rod 201a-1 is vertically slidably sleeved inside the float rod clamp 201a. An arc plate 201a-2 is fixedly connected to the lower end of the float rod clamp 201a in each dripping tube 201. The lower end of the arc plate 201a-2 is a downwardly convex arc surface, and the upper end surface of the arc plate 201a-2 is a flat surface. A box cover 202 is fixedly covered at the upper opening of the solution tank 2. The float rod 201a-1 slides through the box cover 202. A rod end cap 201a-3 is fixedly installed at the upper end of the float rod 201a-1. A compression spring 201a-4 is sleeved on the outside of the float rod 201a-1. The two ends of the compression spring 201a-4 respectively abut against the lower end surface of the rod end cap 201a-3 and the upper end surface of the box cover 202. The tank 1... When the polyaluminum chloride solution in the tank flows through the arc plate 201a-2, a pressure difference is formed between the upper and lower ends of the arc plate 201a-2 under the action of fluid flow, causing the arc plate 201a-2 to move downward, so that sodium sulfide in the solution tank 2 enters the polyaluminum chloride solution in the tank 1 from the dripping pipe 201; when the supply of polyaluminum chloride solution to the tank 1 stops, the compression spring 201a-4 pushes the rod end cap 201a-3 to move upward, so that the float 201a-1 moves upward and pulls up the arc plate 201a-2, so that the upper end face of the arc plate 201a-2 blocks the lower end face of the dripping pipe 201, thereby blocking the flow of sodium sulfide solution into the tank 1 and into the retention tray 101 along the tank 1, increasing the sodium sulfide concentration in the polyaluminum chloride solution in the retention tray 101.

[0018] Furthermore, a mixing paddle shaft 103 is rotatably installed between the two side plates inside the tank 1. A set of mixing paddles 103a is fixedly sleeved on the outer side of the mixing paddle shaft 103 in an axial array. One end of the mixing paddle shaft 103 passes through the side plate of the tank 1 and is connected to the output end of the motor. After sodium sulfide is added to the polyaluminum chloride solution, it flows in the tank and is initially mixed and stirred by the mixing paddles 103a.

[0019] Furthermore, a stirring paddle shaft 104 is rotatably sleeved on the surface of the cover 102 above the retention tray 101. The lower end of the stirring paddle shaft 104 extends into the retention tray 101, and a stirring paddle 104a is fixedly sleeved on the lower end of the stirring paddle shaft 104. The upper end of the stirring paddle shaft 104 is connected to the output shaft of the motor. The polyaluminum chloride solution, after preliminary mixing and stirring, enters the retention tray 101. The motor drives the stirring paddle shaft 104 to rotate, so that the stirring paddle 104a can fully stir the polyaluminum chloride solution in the retention tray 101.

[0020] The operation process in this embodiment is as follows: The polyaluminum chloride solution to be purified is introduced into tank 1 from one end. As the polyaluminum chloride solution flows through the arc plate 201a-2, a pressure difference is created between the upper and lower ends of the arc plate 201a-2 due to the fluid flow, causing the arc plate 201a-2 to move downwards. This allows sodium sulfide from solution tank 2 to enter the polyaluminum chloride solution in tank 1 through the dropper 201. When the supply of polyaluminum chloride solution to tank 1 stops, the compression spring 201a-4 pushes the rod end cap 201a-3 upwards, causing the float 201a-... 1. Move upward and pull up the arc plate 201a-2, so that the upper end of the arc plate 201a-2 blocks the lower end of the drip tube 201, thereby blocking the sodium sulfide solution from flowing into the tank 1 and entering the retention pan 101 along the tank 1, increasing the sodium sulfide concentration in the polyaluminum chloride solution in the retention pan 101; the polyaluminum chloride solution after preliminary mixing and stirring enters the retention pan 101, and the motor drives the stirring paddle shaft 104 to rotate, so that the stirring paddle 104a fully stirs the polyaluminum chloride solution in the retention pan 101. Example 2

[0021] Please see Figures 1 to 5 Based on Example 1, the lower end of the retention tray 101 is connected to a three-way valve pipe 101a. The precipitation separation component 3 includes an outer tank 301 and a filter cylinder 302. By passing the fully stirred polyaluminum chloride solution into the filter cylinder 302 through the three-way valve pipe 101a, the filter cylinder 302 rotates in the outer tank 301. The polyaluminum chloride solution is thrown out of the filter cylinder 302 by centrifugal force, and the precipitated impurities are retained in the filter cylinder 302, thereby achieving the technical effect of separating precipitated impurities.

[0022] Specifically, a piston valve 101a-1 is slidably sleeved inside the horizontal pipe of the three-way valve pipe 101a. A cylinder 101a-2 is fixedly installed at one end of the horizontal pipe of the three-way valve pipe 101a. The telescopic end of the cylinder 101a-2 is fixedly connected to the piston valve 101a-1. The end of the three-way valve pipe 101a away from the cylinder 101a-2 is connected to the sedimentation separation component 3.

[0023] Furthermore, the filter cylinder 302 is rotatably installed inside the outer canister 301, and the end of the three-way valve pipe 101a away from the cylinder 101a-2 passes through the upper end face of the outer canister 301 and communicates with the filter cylinder 302.

[0024] Furthermore, a transfer tube 302a is rotatably sleeved on the outer side of the three-way valve pipe 101a away from the cylinder 101a-2. The transfer tube 302a rotatably passes through the top surface of the outer canister 301, and the lower end of the transfer tube 302a is fixedly sleeved through the upper surface of the filter screen cylinder 302. The upper end of the transfer tube 302a is connected to the output shaft of the motor via a sleeve belt.

[0025] The operation process in this embodiment is as follows: After the polyaluminum chloride solution in the retention tray 101 is stirred, the cylinder 101a-2 pulls the piston valve 101a-1, causing the polyaluminum chloride solution in the retention tray 101 to flow from the three-way valve pipe 101a into the filter cylinder 302. The motor drives the transfer pipe 302a to rotate, causing the transfer pipe 302a to drive the filter cylinder 302 to rotate. Through the action of centrifugal force, the polyaluminum chloride solution is thrown out from the filter cylinder 302, leaving the precipitated impurities in the filter cylinder 302, thereby achieving the technical effect of separating precipitated impurities.

[0026] 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.

Claims

1. A polyaluminum chloride solution purification tank, comprising a tank body (1), a solution tank (2), and a precipitation separation component (3), characterized in that: One end of the tank (1) is fixedly provided with a retention tray (101), and the upper end of the opening of the tank (1) is fixedly covered with a tank cover (102). The solution tank (2) is set on the upper end face of the tank cover (102), and a set of drop tubes (201) are connected to the lower end face of the solution tank (2). The drop tubes (201) penetrate the tank cover (102) and extend into the tank (1). The precipitation separation component (3) is connected to the bottom end of the retention tray (101).

2. The polyaluminum chloride solution purification tank according to claim 1, characterized in that: A float rod clamp (201a) is fixedly sleeved inside the upper end of the dripping tube (201). A float rod (201a-1) is vertically slidably sleeved inside the float rod clamp (201a). An arc plate (201a-2) is fixedly connected to the lower end of the float rod clamp (201a) in each dripping tube (201). The lower end of the arc plate (201a-2) is a downwardly convex arc surface, and the upper end surface of the arc plate (201a-2) is a flat surface. The solution tank (2) The upper opening of the container is fixedly covered with a box cover (202). The float (201a-1) slides through the box cover (202). The upper end of the float (201a-1) is fixed with a rod end cap (201a-3). A compression spring (201a-4) is sleeved on the outside of the float (201a-1). The two ends of the compression spring (201a-4) are respectively pressed against the lower end face of the rod end cap (201a-3) and the upper end face of the box cover (202).

3. The polyaluminum chloride solution purification tank according to claim 2, characterized in that: A hybrid propeller shaft (103) is rotatably installed between the two side plates inside the tank (1). A set of hybrid propellers (103a) is fixedly sleeved on the outer side of the hybrid propeller shaft (103) in an axial array. One end of the hybrid propeller shaft (103) passes through the side plate of the tank (1) and is connected to the output end of the motor.

4. The polyaluminum chloride solution purification tank according to claim 3, characterized in that: A stirring paddle shaft (104) is rotatably sleeved on the surface of the groove cover (102) above the retention tray (101). The lower end of the stirring paddle shaft (104) extends into the retention tray (101), and a stirring paddle (104a) is fixedly sleeved on the lower end of the stirring paddle shaft (104). The upper end of the stirring paddle shaft (104) is connected to the output shaft of the motor.

5. The polyaluminum chloride solution purification tank according to claim 1, characterized in that: The lower end of the retention tray (101) is connected to a three-way valve pipe (101a). A piston valve (101a-1) is slidably sleeved in the horizontal pipe of the three-way valve pipe (101a). A cylinder (101a-2) is fixedly installed at one end of the horizontal pipe of the three-way valve pipe (101a). The telescopic end of the cylinder (101a-2) is fixedly connected to the piston valve (101a-1). The end of the three-way valve pipe (101a) away from the cylinder (101a-2) is connected to the sedimentation separation component (3).

6. The polyaluminum chloride solution purification tank according to claim 5, characterized in that: The sedimentation separation component (3) includes an outer tank (301) and a filter cylinder (302). The filter cylinder (302) is rotatably installed inside the outer tank (301). The end of the three-way valve pipe (101a) away from the cylinder (101a-2) passes through the upper surface of the outer tank (301) and communicates with the filter cylinder (302).

7. The polyaluminum chloride solution purification tank according to claim 6, characterized in that: The three-way valve pipe (101a) is rotatably sleeved with a transfer pipe (302a) on the outer side of the end away from the cylinder (101a-2). The transfer pipe (302a) rotatably passes through the top surface of the outer canister (301). The lower end of the transfer pipe (302a) is fixedly sleeved through the upper surface of the filter screen cylinder (302). The upper end of the transfer pipe (302a) is connected to the output shaft of the motor through a sleeve belt.

Images