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A solid-liquid separation system and separation method for coal washing wastewater

A technology for coal washing wastewater, solid-liquid separation, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problems of low separation efficiency, secondary pollution, and high energy consumption, To achieve the effect of simplifying the process flow, saving water and improving the recovery rate

Active Publication Date: 2016-03-30
KANGTAI JIANGSU ENVIRONMENTAL PROTECTION LTD BY SHARE LTD
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AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problems that the current solid-liquid separation technology of coal washing wastewater has high energy consumption, easy to produce secondary pollution, low separation efficiency and poor effect, and proposes a coal washing wastewater Solid-liquid separation system

Method used

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  • A solid-liquid separation system and separation method for coal washing wastewater
  • A solid-liquid separation system and separation method for coal washing wastewater

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Embodiment 1

[0020] A solid-liquid separation system for coal washing wastewater, such as Figure 1-2 As shown, the dissolving medicine box 1 is connected to the medicine box 2, the medicine box 2 is connected to the flocculation mixing box 4 through the metering pump 3, the waste water tank 12 is connected to the flocculation mixing box 4 through the water pump 5, and the flocculation mixing box 4 is connected to the coal washing solid-liquid separator 6 are connected, and the coal washing solid-liquid separator 6 is connected with the filtrate clarification tank 7. The coal washing solid-liquid separator 6 is a stacked screw sludge dewatering machine. The screw stack main body 8 of the screw stack type sludge dewatering machine is provided with a filter tube 9, and the filter tube 9 is arranged between the moving ring filter 10 and the fixed ring filter 11 of the screw stack body 8. The screw-stacked sludge dewatering machine is equipped with an automatic spraying device 13 .

[0021] ...

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Abstract

The invention discloses a coal-washing wastewater solid-liquid separation system and method, and belongs to the technical field of industrial wastewater treatment. A reagent dissolving box and a reagent box of the system are connected, the reagent box is connected with a flocculate stirring box through a metering pump, a wastewater pool is connected with the flocculate stirring box through a water pump, the flocculate stirring box is connected with a coal-washing solid-liquid separation machine, and the coal-washing solid-liquid separation machine is connected with a filtrate settling pond. According to the coal-washing wastewater solid-liquid separation system, the construction work amount is small, the construction period is short, the technique is simple and continuous in the treatment process, the solid-liquid separation can be rapidly conducted on the coal-washing wastewater, the separated clear liquid can be directly used in production after being settled, the technological process is simplified, and water is effectively saved.

Description

technical field [0001] The invention belongs to the technical field of industrial wastewater treatment, and in particular relates to a coal washing wastewater solid-liquid separation system and a separation method thereof. Background technique [0002] Coal washing wastewater is the industrial tail water of coal mine wet coal washing process, which contains a large amount of coal slime and silt, which has caused serious pollution to the environment near the mining area. Its main features are high turbidity, fine particle size of solids, and negative charges on the surface of solid particles. The repulsion between the same-sex charges keeps these particles in a dispersed state in water, which is affected by gravity and Brownian motion; The interaction between them (such as adsorption, dissolution, compounding, etc.) makes the properties of coal washing wastewater quite complex, not only has the properties of suspension, but also has the properties of colloid. Due to the abov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04
Inventor 花成巍王飞贾少伟袁浙飞
Owner KANGTAI JIANGSU ENVIRONMENTAL PROTECTION LTD BY SHARE LTD
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