Mud-washing device and mud-washing method for treating pollutants in mud cake

A technology for pollutants and sludge washing, applied in sludge treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problem of untreated sludge cake, achieve uniform distribution of sludge and increase the probability of reaction , The effect of completely removing harmful substances

Active Publication Date: 2014-11-05
河南省新悦环境科学技术研究发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many mud cakes are basically not processed at present

Method used

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  • Mud-washing device and mud-washing method for treating pollutants in mud cake
  • Mud-washing device and mud-washing method for treating pollutants in mud cake
  • Mud-washing device and mud-washing method for treating pollutants in mud cake

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A mud washing method of a mud washing device for treating pollutants in mud cakes:

[0053] Step 1: Pour water into the mud washing tank, and stop adding water when the water height reaches 1 / 3 of the overall height of the mud washing tank;

[0054] Step 2. Gradually add mud cake and medicament along the direction of the mud chute. According to the content and type of harmful ingredients contained in the mud cake, add the appropriate proportion of medicament, and turn on the uniform mixing device and proceed along the mixing direction. Add water at a time, the stirring rate is 45 revolutions / min, and the stirring time is 30 minutes, until the water level reaches 500-1000mm from the top of the mud washing tank, stop water inflow, and stop adding mud cake when the dosage of mud cake and agent reaches the design requirements And medicine;

[0055] Step 3. Stop stirring, let it stand for 20 minutes, and compress and settle naturally. When the mud cake is under the adjustment cont...

example example 2

[0058] A mud washing method of a mud washing device for treating pollutants in mud cakes:

[0059] Step 1: Pour water into the mud washing tank, and stop adding water when the water height reaches 1 / 2 of the overall height of the mud washing tank;

[0060] Step 2. Gradually add mud cake and medicament along the direction of the mud chute. According to the content and type of harmful ingredients contained in the mud cake, add the appropriate proportion of medicament, and turn on the uniform mixing device and proceed along the mixing direction. Add water at a time, the stirring rate is 75 revolutions / min, and the stirring time is 40 minutes, until the water level reaches 500-1000mm from the top of the mud washing tank, stop water inflow, and stop adding mud cake when the dosage of mud cake and agent reaches the design requirements And medicine;

[0061] Step 3. Stop stirring, let it stand for 20-25 minutes, and compress and settle naturally. When the mud cake is under the adjustment c...

Embodiment 3

[0064] A mud washing method of a mud washing device for treating pollutants in mud cakes:

[0065] Step 1: Pour water into the mud washing tank, and stop adding water when the water height reaches 3 / 5 of the overall height of the mud washing tank;

[0066] Step 2. Gradually add mud cake and medicine along the direction of the mud chute. According to the content and type of harmful ingredients in the mud cake, add the appropriate proportion of the medicine, and turn on the uniform mixing device at the same time, the stirring rate is 100 rpm / min, mixing time is 50 minutes, when the dosage of mud cake and agent reaches the design requirement, stop adding mud cake and agent;

[0067] Step 3. Stop stirring, let it stand for 20-25 minutes, and compress and settle naturally. When the mud cake is under the adjustment control board, open the drain valve and drain the supernatant above the adjustment control board;

[0068] Step 4. Turn on the slurry pump and discharge the slurry for reduction...

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Abstract

The invention discloses a mud-washing device and a mud-washing method for treating pollutants in a mud cake. The mud-washing device comprises a mud-washing tank, a mud chute, a uniform mixing device, an adjustment control plate, a mud discharge tube and a backwash tube, wherein the mud-washing tank is divided into an upper-layer cylindrical mud-washing chamber and a lower-layer upright-cone-shaped mud discharge chamber by the adjustment control plate; a mud inlet is formed in the top of the mud-washing chamber; the horizontally-arranged mud discharge tube and the vertically-arranged backwash tube are arranged at the bottom of the mud discharge chamber; the mud discharge tube and the backwash tube are communicated with the mud discharge chamber respectively; and the water inlet of the backwash tube and the centre of the mud-washing tank are correspondingly arranged. The device is used for crushing and filtering the mud cake and performing treatment aiming at harmful substances left in the mud cake.

Description

Technical field [0001] The invention relates to the field of environmental protection, in particular to a mud washing device and a mud washing method for treating pollutants in mud cakes. technical background [0002] With economic development and social progress, the requirements for the depth and intensity of pollutant treatment are getting higher and higher. Some harmful substances still remain in some mud cakes after pressure filtration. If the mud cakes are discharged directly, it will pollute the environment. Therefore, the contaminants in the mud cake must be treated. However, many mud cakes are basically not processed at present. [0003] This technology needs to re-dissolve the mud cake into small pieces or even a muddy state. After adding the agent, it can effectively increase the full mixing and reaction of the mud cake and the agent, thereby reducing the harmful substances in the mud cake, and finally making the mud cake harmless Chemical and stabilization treatm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/00
Inventor 周悦先樊亚宗
Owner 河南省新悦环境科学技术研究发展有限公司
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