Suspended matter multi-stage separation device for sewage treatment

Abstract

The utility model provides a suspended matter multi-stage separation device for sewage treatment, and belongs to the technical field of sewage treatment. Comprising a plurality of separation water tanks with sequentially reduced liquid levels, the separation water tank with the highest liquid level is connected with a water inlet pipe, the adjacent separation water tanks are connected through a separation mechanism, the separation mechanism comprises a material guide screw rotationally connected to the separation water tanks, one end of the material guide screw is provided with a water wheel, and the separation water tanks are provided with water outlets corresponding to the water wheel. And the separation water tank is provided with a slag discharge port corresponding to the other end of the material guide screw rod. The device has the advantages of high separation efficiency and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment and relates to a suspended matter multi-stage separation device for sewage treatment. Background Art

[0002] During the hazardous waste treatment process, the leaching liquid of liquid hazardous waste and solid hazardous waste incineration gas, etc., need to go through multiple processes to achieve harmless discharge, which includes the suspended matter separation step. The separation method of suspended matter in wastewater generally adopts aeration plus scraping. Aeration increases the probability of suspended matter suspension and can also disperse large pieces of suspended matter. The scraper scrapes the suspended matter near the liquid surface to separate it. In order to make the suspended matter separated thoroughly, a larger water storage tank is generally required to control the water inlet and outlet to maintain the liquid level almost unchanged. Drainage is continuous, and filtration is generally used to avoid the discharge of suspended matter with the discharge water. This requires regular cleaning of the filter at the drain outlet. Therefore, in the current method, on the one hand, a larger liquid storage space is required to ensure that the suspended matter has a larger scraping area and scraping efficiency. On the other hand, the filter needs to be cleaned regularly. The presence of the filter may also cause large fluctuations in the liquid level and affect the scraping effect of suspended matter, that is, the reliability is not high. Utility Model Content

[0003] The purpose of the utility model is to provide a suspended matter multi-stage separation device for sewage treatment in view of the above-mentioned problems existing in the existing technology. The technical problem to be solved by the utility model is how to improve the efficiency of suspended matter removal.

[0004] The purpose of the utility model can be achieved through the following technical solutions: A suspended matter multi-stage separation device for sewage treatment, characterized in that it includes a plurality of separation water tanks with successively lower liquid levels, the separation water tank with the highest liquid level is connected to the water inlet pipe, and adjacent separation water tanks are connected by a separation mechanism, the separation mechanism includes a material guide screw rotatably connected to the separation water tank, one end of the material guide screw has a water wheel, the separation water tank has a water outlet corresponding to the water wheel, and the separation water tank has a slag discharge port corresponding to the other end of the material guide screw.

[0005] Furthermore, the sea includes a slag discharge guide groove fixed on the side wall of each separation water tank, and the slag discharge guide groove has an inclination angle with the horizontal plane.

[0006] Near the water outlet, water flows from the high-liquid-level separation tank through the water outlet into the low-liquid-level separation tank. The water flow drives the water wheel to rotate, that is, the guide screw rotates, and the guide screw guides the foam and suspended matter to the slag discharge port. Of course, the liquid level at the slag discharge port is higher than the liquid level at the water outlet. An aeration device can be installed at the bottom of the separation tank.

[0007] This multi-stage separation method improves the efficiency of suspended matter cleaning. There is no filtering structure and no maintenance is required. It can also ensure that the liquid level of each separation water tank is constant, and the cleaning effect of floating foam and suspended matter is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural diagram of a suspended matter multi-stage separation device.

[0009] In the figure, 1. Separation water tank; 2. Water inlet pipe; 3. Material guide screw; 4. Water wheel; 5. Water outlet; 6. Slag discharge port; 7. Slag discharge guide trough. DETAILED DESCRIPTION

[0010] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0011] like Figure 1 The multi-stage suspended matter separation device shown includes multiple separation water tanks 1 with successively lower liquid levels. The separation water tank 1 with the highest liquid level is connected to a water inlet pipe 2. Adjacent separation water tanks 1 are connected by a separation mechanism, which includes a material guide screw 3 rotatably connected to the separation water tank 1. One end of the material guide screw 3 has a water wheel 4, the separation water tank 1 has a water outlet 5 corresponding to the water wheel 4, and the separation water tank 1 has a slag discharge port 6 corresponding to the other end of the material guide screw 3.

[0012] The sea includes a slag discharge guide chute 7 fixed on the side wall of each separation water tank 1, and the slag discharge guide chute 7 has an inclination angle with the horizontal plane.

[0013] Near the water outlet 5, water flows from the separation water tank 1 with a high liquid level through the water outlet 5 into the separation water tank 1 with a low liquid level. The water flow drives the water wheel 4 to rotate, that is, the guide screw 3 rotates, and the guide screw 3 guides the foam and suspended matter to the slag discharge port 6. Of course, the liquid level of the slag discharge port 6 is higher than the liquid level of the water outlet 5. An aeration device can be set at the bottom of the separation water tank 1.

[0014] This multi-stage separation method improves the efficiency of suspended matter cleaning, does not require a filtering structure, and does not require maintenance. It can also ensure that the liquid level of each separation water tank 1 is constant, and the cleaning effect of foam and suspended matter is good.

[0015] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A suspended solids multi-stage separation device for sewage treatment, characterized in that: The invention comprises a plurality of separation water tanks (1) with successively lower liquid levels, wherein the separation water tank (1) with the highest liquid level is connected to a water inlet pipe (2), and adjacent separation water tanks (1) are connected via a separation mechanism, wherein the separation mechanism comprises a material guide screw (3) rotatably connected to the separation water tank (1), one end of the material guide screw (3) is provided with a water wheel (4), the separation water tank (1) is provided with a water outlet (5) corresponding to the water wheel (4), and the separation water tank (1) is provided with a slag discharge port (6) corresponding to the other end of the material guide screw (3).

2. The suspended solids multi-stage separation device for sewage treatment according to claim 1, characterized in that: The system comprises a slag discharge guide groove (7) fixed on the side wall of each separation water tank (1), wherein the slag discharge guide groove (7) has an inclination angle with the horizontal plane.

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