Coal slurry water purification device

Abstract

The utility model relates to sewage treatment technical field, concretely is a kind of coal slime water purification device, it includes: flocculation sedimentation tank, primary filter box and purification tank;Wherein, the middle end of flocculation sedimentation tank inner chamber is fixed with baffle, the both ends of flocculation sedimentation tank top are all communicated with flocculating agent feeding pipe, the lower end of flocculating agent feeding pipe is equipped with flow control valve, the both ends of flocculation sedimentation tank top are equipped with driving motor, and the output of driving motor is fixed with rotating rod.The utility model is through being provided with double flocculation sedimentation chamber with baffle, and cooperate two groups of controllable flow guide pipe, realize the alternating operation mode of one chamber deposition and one chamber mixed reaction, this fundamentally solves the contradiction between water flow continuous flow and flocculation body needs to deposit, ensure that flocculation body has enough time to settle, effectively prevent that flocculation body is carried out by water flow, to significantly improve purification efficiency and effluent quality.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a coal slurry water purification device. Background Technology

[0002] Coal washing generates a significant amount of coal slurry containing coal slime particles. Directly discharging this slurry is both wasteful of water and pollutes the environment, making coal slurry purification a crucial step in coal production. Currently, the industry commonly uses flocculation and sedimentation methods for treatment. Simply put, flocculants are added to the coal slurry to cause fine coal slime particles to aggregate into larger flocs, which are then separated from the water in a sedimentation tank. To ensure faster and more even mixing of the flocculant and coal slurry, and to improve reaction efficiency, modern sedimentation tanks are typically equipped with agitators, such as impellers or pumps. The rotation of these agitators allows the flocculant to quickly diffuse throughout the coal slurry system, reducing the time it spends reacting with the coal slime particles. However, the problem is that after the flocs form, they need to stand for a while before settling to the bottom of the tank.

[0003] However, in actual purification, the coal slurry water is in a continuous flow state. On one hand, water to be treated is fed into the sedimentation tank, and on the other hand, purified supernatant is discharged. However, the flocs need to be left to settle for a while, which conflicts with the continuous flow of water. Some newly formed flocs have not had time to settle to the bottom before they are carried by the water flowing in later to the outlet and then enter the next process. After these unsettled flocs flow out, not only does the purification efficiency decrease, but it also adds burden to the subsequent processes, affecting the operation and treatment quality of the entire purification system. Therefore, we propose a coal slurry water purification device. Utility Model Content

[0004] The purpose of this invention is to provide a coal slurry water purification device with the advantages of good purification effect and high purification efficiency. It solves the problem that in actual purification, the coal slurry water is in a continuously flowing state. While water to be treated is being fed into the sedimentation tank, the purified supernatant is being discharged out. However, the flocs need to be left to settle for a while, which conflicts with the continuous flow of water. Some newly formed flocs have not had time to settle to the bottom before being carried to the outlet by the water flowing in later and entering the next process. The outflow of these unsettled flocs not only reduces the purification efficiency, but also adds burden to subsequent processes, affecting the operation and treatment quality of the entire purification system.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a coal slurry water purification device, comprising:

[0006] Flocculation sedimentation box, primary filter box and purification box;

[0007] The flocculation sedimentation tank has a partition fixed in the middle of its inner cavity, and both ends of the top of the flocculation sedimentation tank are connected to flocculant delivery pipes. The lower end of the flocculant delivery pipe is equipped with a flow control valve. Both ends of the top of the flocculation sedimentation tank are equipped with drive motors, and the output end of the drive motor is fixed with a rotating rod. The outer surface of the rotating rod is equipped with a stirring impeller.

[0008] The primary filter box is fixed to the front of the flocculation sedimentation box. The lower end of the front of the primary filter box is connected to a water inlet pipe. One end of the water inlet pipe is equipped with a flow valve. The inner surfaces of the upper and lower ends of the primary filter box are respectively provided with a water storage area and an inclined tube sedimentation area.

[0009] The purification box is located behind the flocculation sedimentation box. The inner cavity of the purification box is equipped with a honeycomb filter plate and an activated carbon adsorption plate. The top of the purification box is connected to a clean water drain pipe. A number of guide pipes are connected between the top of the purification box and the rear of the flocculation sedimentation box. The lower end of the guide pipe is equipped with an electrically controlled valve body.

[0010] Preferably, a sludge discharge motor is installed at the lower end of one side of the flocculation sedimentation tank, and a drive roller located at the lower end of the inner cavity of the flocculation sedimentation tank is installed at the output end of the sludge discharge motor.

[0011] Preferably, the lower end of the other side of the flocculation sedimentation tank is connected to a sludge discharge pipe, and one end of the sludge discharge pipe is equipped with an electrically controlled valve.

[0012] Preferably, the inner surface of the stirring impeller is provided with a plurality of through holes.

[0013] Preferably, the bottom of the primary filter box is provided with a cleaning pipe groove.

[0014] Preferably, the flocculation sedimentation tank is divided into two flocculation sedimentation chambers by a partition.

[0015] Preferably, the number of the guide pipes is four, and the four guide pipes are divided into two groups, with each group of guide pipes connected to a corresponding flocculation and sedimentation chamber.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model, by setting up a double flocculation sedimentation chamber with a partition and cooperating with two sets of controllable guide pipes, realizes an alternating working mode of sedimentation in one chamber and mixing reaction in the other chamber. This fundamentally solves the contradiction between the continuous flow of water and the need for flocs to settle, ensuring that the flocs have enough time to settle and effectively preventing the flocs from being carried out by the water flow, thereby significantly improving the purification efficiency and effluent quality.

[0018] 2. This utility model can remove some of the larger coal slurry particles in advance through the inclined tube sedimentation zone in the primary filter box, reducing the processing load of the subsequent flocculation sedimentation box. The dual deep purification unit composed of honeycomb filter plate and activated carbon adsorption plate in the purification box can further intercept residual small flocs and adsorb dissolved organic matter. Finally, the water discharged through the clear water drain pipe is clear, realizing the graded and efficient purification of coal slurry water. Attached Figure Description

[0019] Figure 1 This is a first-view structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention from a second perspective;

[0021] Figure 3 This is a schematic diagram of the third-view cross-sectional structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the primary filter seat of this utility model.

[0023] In the diagram: 1. Flocculation sedimentation tank; 101. Sludge discharge pipe; 102. Flocculant dosing pipe; 103. Flow control valve; 104. Drive motor; 105. Baffle plate; 106. Drive impeller; 107. Agitator impeller; 108. Sludge discharge motor; 109. Rotating rod; 2. Primary filter box; 201. Inlet pipe; 202. Cleaning pipe groove; 203. Inclined tube sedimentation zone; 204. Flow valve; 205. Water storage zone; 3. Purification tank; 301. Clear water drain pipe; 302. Activated carbon adsorption plate; 303. Honeycomb filter plate; 4. Guide pipe; 401. Electrically controlled valve body. Detailed Implementation

[0024] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] The components of this application, including the flocculation sedimentation tank 1, sludge discharge pipe 101, flocculant dosing pipe 102, flow control valve 103, drive motor 104, baffle plate 105, drive impeller 106, stirring impeller 107, sludge discharge motor 108, rotating rod 109, primary filter 2, water inlet pipe 201, cleaning pipe groove 202, inclined tube sedimentation zone 203, flow valve 204, water storage zone 205, purification tank 3, clear water drain pipe 301, activated carbon adsorption plate 302, honeycomb filter plate 303, guide pipe 4, and electric control valve body 401, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0026] Example 1

[0027] Please see Figures 1-4 As shown, this utility model provides a technical solution for a coal slurry water purification device: a coal slurry water purification device, comprising:

[0028] Flocculation sedimentation box 1, primary filter box 2 and purification box 3;

[0029] Among them, a partition plate 105 is fixed in the middle of the inner cavity of the flocculation sedimentation tank 1, and both ends of the top of the flocculation sedimentation tank 1 are connected to flocculant delivery pipes 102. A flow control valve 103 is provided at the lower end of the flocculant delivery pipes 102, and drive motors 104 are installed at both ends of the top of the flocculation sedimentation tank 1. A rotating rod 109 is fixed at the output end of the drive motor 104, and an agitator impeller 107 is installed on the outer surface of the rotating rod 109.

[0030] The primary filter box 2 is fixed to the front of the flocculation sedimentation box 1. The lower end of the front of the primary filter box 2 is connected to the water inlet pipe 201. One end of the water inlet pipe 201 is equipped with a flow valve 204. The inner surfaces of the upper and lower ends of the primary filter box 2 are respectively provided with a water storage area 205 and an inclined tube sedimentation area 203.

[0031] The purification box 3 is located behind the flocculation sedimentation box 1. The inner cavity of the purification box 3 is equipped with a honeycomb filter plate 303 and an activated carbon adsorption plate 302. The top of the purification box 3 is connected to a clean water drain pipe 301. A number of guide pipes 4 are connected between the top of the purification box 3 and the rear side of the flocculation sedimentation box 1. The lower end of the guide pipe 4 is equipped with an electrically controlled valve body 401.

[0032] The flocculation sedimentation tank 1 is divided into two flocculation sedimentation chambers by a partition 105. There are four guide pipes 4, which are divided into two groups. Each group of guide pipes 4 is connected to the corresponding flocculation sedimentation chamber.

[0033] This technical solution: Wastewater containing coal slurry enters the storage area 205 of the primary filter tank 2 through the inlet pipe 201, and then flows through the inclined tube sedimentation zone 203. Inside the inclined tube, larger solid particles in the wastewater settle under gravity, achieving preliminary solid-liquid separation and reducing the burden on the main treatment unit. The supernatant after preliminary filtration waits to enter the flocculation sedimentation tank 1 for alternating flocculation and sedimentation stages (taking one chamber as an example):

[0034] Chamber A: The pre-filtered wastewater is introduced into chamber A. At this time, the electrically controlled valve body 401 on the guide pipe 4 corresponding to this chamber is in the closed state. At the same time, the flocculant is precisely added through the flocculant delivery pipe 102 under the regulation of the flow control valve 103. The drive motor 104 is started, driving the rotating rod 109 and the stirring impeller 107 with through holes to rotate at high speed, so that the flocculant and wastewater are fully and quickly mixed.

[0035] Chamber B: While mixing takes place in Chamber A, another chamber B is in a static sedimentation state. Its corresponding guide pipe 4 and the electrically controlled valve body 401 are also in a closed state to ensure that the internal water flow is still and to provide a stable settling environment for the flocs. The flocs formed in Chamber B earlier slowly sink to the bottom of the tank under the action of gravity.

[0036] After chamber B completes the predetermined sedimentation time, the corresponding guide pipe 4 and its electrically controlled valve 401 open, allowing the supernatant to flow into the purification tank 3 under static pressure. Simultaneously, new wastewater from the primary filter 2 is switched to chamber B to begin the flocculation process, while chamber A enters the settling stage. This alternating cycle ensures continuous wastewater treatment. The supernatant flowing from the flocculation and sedimentation tank 1 enters the purification tank 3 through the guide pipe 4. The water first passes through the honeycomb filter plate 303, which, with its large specific surface area and labyrinthine channels, effectively traps residual micro-flocs and suspended solids. Subsequently, the water flows through the activated carbon adsorption plate 302, where residual dissolved organic matter, color, and odor are further adsorbed and removed. Finally, the high-standard purified water is discharged through the top clear water drain pipe 301, which can be directly reused or discharged in compliance with standards.

[0037] Example 2

[0038] Based on Embodiment 1, this utility model is as follows: Figures 1-4 As shown, a sludge discharge motor 108 is installed at the lower end of one side of the flocculation sedimentation tank 1. The output end of the sludge discharge motor 108 is equipped with a drive blade roller 106 located at the lower end of the inner cavity of the flocculation sedimentation tank 1. The lower end of the other side of the flocculation sedimentation tank 1 is connected to a sludge discharge pipe 101, and one end of the sludge discharge pipe 101 is equipped with an electric control valve.

[0039] This technical solution: When the coal slurry at the bottom of the flocculation sedimentation tank 1 accumulates to a certain thickness, the electric control valve on the slurry discharge pipe 101 can be opened, and the slurry discharge motor 108 can be started to drive the drive roller 106 to rotate, so as to stir the concentrated coal slurry and discharge it smoothly, which is convenient for people to use.

[0040] Example 3

[0041] Based on Embodiment 1, this utility model is as follows: Figures 1-4 As shown, the inner surface of the stirring impeller 107 is provided with a plurality of through holes.

[0042] This technical solution, through the through-hole design on the stirring impeller 107, can enhance turbulent mixing while reducing the shearing damage of the already formed flocs caused by rotation, which is conducive to the formation of larger and denser flocs, thereby accelerating sedimentation.

[0043] Example 4

[0044] Based on Embodiment 1, this utility model is as follows: Figures 1-4 As shown, the bottom of the primary filter box 2 is provided with a cleaning pipe groove 202.

[0045] This technical solution allows for the periodic cleaning of sediment at the bottom of the primary filter box 2 by setting up the cleaning pipe channel 202.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A coal slurry water purification device, characterized in that, include: Flocculation sedimentation box (1), primary filter box (2) and purification box (3); The flocculation sedimentation tank (1) has a partition (105) fixed in the middle of its inner cavity. Both ends of the top of the flocculation sedimentation tank (1) are connected to flocculant delivery pipes (102). The lower end of the flocculant delivery pipes (102) is equipped with a flow control valve (103). Both ends of the top of the flocculation sedimentation tank (1) are equipped with drive motors (104). The output end of the drive motor (104) is fixed with a rotating rod (109). The outer surface of the rotating rod (109) is equipped with a stirring impeller (107). The primary filter box (2) is fixed to the front of the flocculation sedimentation box (1). The lower end of the front of the primary filter box (2) is connected to the water inlet pipe (201). One end of the water inlet pipe (201) is equipped with a flow valve (204). The inner surfaces of the upper and lower ends of the primary filter box (2) are respectively equipped with a water storage area (205) and an inclined tube sedimentation area (203). The purification box (3) is located behind the flocculation sedimentation box (1). The inner cavity of the purification box (3) is provided with a honeycomb filter plate (303) and an activated carbon adsorption plate (302). The top of the purification box (3) is connected to a clean water drain pipe (301). A number of guide pipes (4) are connected between the top of the purification box (3) and the rear side of the flocculation sedimentation box (1). The lower end of the guide pipe (4) is provided with an electrically controlled valve body (401).

2. The coal slurry water purification device according to claim 1, characterized in that: A sludge discharge motor (108) is installed at the lower end of one side of the flocculation sedimentation tank (1), and a drive blade roller (106) located at the lower end of the inner cavity of the flocculation sedimentation tank (1) is installed at the output end of the sludge discharge motor (108).

3. The coal slurry water purification device according to claim 2, characterized in that: The lower end of the other side of the flocculation sedimentation tank (1) is connected to a sludge discharge pipe (101), and one end of the sludge discharge pipe (101) is equipped with an electric control valve.

4. The coal slurry water purification device according to claim 1, characterized in that: The inner surface of the stirring impeller (107) is provided with a number of through holes.

5. The coal slurry water purification device according to claim 1, characterized in that: The bottom of the primary filter box (2) is provided with a cleaning pipe groove (202).

6. The coal slurry water purification device according to claim 1, characterized in that: The flocculation sedimentation tank (1) is divided into two flocculation sedimentation chambers by a partition (105).

7. The coal slurry water purification device according to claim 6, characterized in that: The number of the guide pipes (4) is four, and the four guide pipes (4) are divided into two groups, and each group of guide pipes (4) is connected to the corresponding flocculation sedimentation chamber.

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