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A coal mine underground mine water magnetic separation water purification process and equipment

A technology for water purification and mine water, which is used in water/sewage treatment equipment, mining wastewater treatment, water/sewage treatment, etc. It can solve the problem of low utilization rate and recovery rate of magnetic species, effluent quality to be improved, and slow flocculation reaction process. problems, to achieve high recovery rate of magnetic seeds, shorten the flocculation mixing time, and improve the effect of

Active Publication Date: 2021-09-17
JIANGSU TIAN XIN WATER TREATMENT EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When purifying mine water, we often use magnetic separation and purification technology and equipment to treat mine water. However, we have encountered some problems in the actual underground mine water magnetic separation water purification, such as, The purification efficiency is low, the effluent water quality still needs to be improved, and the flocculation reaction process is slow. At the same time, the utilization rate and recovery rate of the magnetic seeds are low, resulting in waste and expense of the magnetic seeds, resulting in higher costs. Therefore, it is now necessary to A new type of purification equipment and process for mine water in coal mines to solve the above shortcomings and meet the actual purification treatment needs

Method used

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  • A coal mine underground mine water magnetic separation water purification process and equipment
  • A coal mine underground mine water magnetic separation water purification process and equipment
  • A coal mine underground mine water magnetic separation water purification process and equipment

Examples

Experimental program
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Effect test

Embodiment 1

[0048] Such as figure 1 As shown, a coal mine underground mine water magnetic separation water purification equipment mainly includes a pipeline mixer 1, a coagulation tank 2, a magnetic seed addition tank 3, a flocculation device 4, a sedimentation tank 5, a magnetic separation device 6, and after water purification Treatment device 7, sludge dehydrator 8; water purification post-treatment device adopts activated carbon adsorption purification;

[0049] Such as Figure 2-3 As shown, the flocculation device 4 includes a flocculation bin body 41, a disorderly agitator 42, a dosing device 43, and a driving motor 44; There are multiple, circumferentially equidistantly arranged on the upper part of the surrounding wall of the flocculation bin body 41; the dosing device 46 includes a drug storage bin 461, a drug distributing leaf 462, a transmission leaf 463, and an air chamber 464, and the inner side of the drug storage bin 461 is provided with The drug distribution port 465, th...

Embodiment 2

[0066] Embodiment 2 is basically the same as Embodiment 1, and the difference from Embodiment 1 is that

[0067] A mine water magnetic separation water body purification process for underground coal mines, comprising the following steps:

[0068] S1: Inject mine water through the water inlet end of pipeline mixer 1, and at the same time adjust the volume flow rate of mine water to 53g / m 3 The coagulant is added and mixed, and coagulated in the coagulation tank 2 to obtain coagulated mine water; the coagulant consists of 27 parts by weight of ferric chloride, 3 parts of aluminum sulfate, 2 parts of volcanic rock powder, 7 parts by weight It consists of one part ionic polyacrylamide and one part alkanolamide. The coagulant composed of the above ratio has a good coagulation effect. The addition of volcanic rock powder can promote the coagulation treatment and increase the degree of coagulation. The addition of alkanolamide can enhance the purification effect and improve the puri...

Embodiment 3

[0075] Embodiment 3 is basically the same as Embodiment 1, and the difference with Embodiment 1 is that

[0076] A mine water magnetic separation water body purification process for underground coal mines, comprising the following steps:

[0077] S1: Inject mine water through the water inlet end of pipeline mixer 1, and at the same time, according to the volume flow rate of mine water, 62g / m 3 The coagulant is added and mixed, and coagulated in the coagulation tank 2 to obtain coagulated mine water; the coagulant consists of 30 parts of ferric chloride, 5 parts of aluminum sulfate, 3 parts of volcanic rock powder, 8 parts by weight Composed of ionic polyacrylamide and 2 alkanolamides. The coagulant composed of the above ratio has a good coagulation effect. The addition of volcanic rock powder can promote the coagulation treatment and increase the degree of coagulation. The addition of alkanolamide can enhance the purification effect and improve the purified water quality, and...

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Abstract

The invention discloses a mine water magnetic separation water body purification process and equipment for underground coal mines, mainly including a pipeline mixer, a coagulation tank, a magnetic seed addition tank, a flocculation device, a sedimentation tank, a magnetic separation device, a water purification post-treatment device, The sludge dehydrator, pipeline mixer, coagulation tank, magnetic seed addition tank, flocculation device, and sedimentation tank are connected through pipelines in turn, and the magnetic mud outlet and water purification outlet of the sedimentation tank are respectively connected to the magnetic separation device and the water purification post-treatment device. Pipeline connection; the sludge outlet of the magnetic separation device is connected to the sludge dehydrator through pipelines; the magnetic seed port of the magnetic separation device is connected to the magnetic seed adding pool through pipelines, and the sludge dewaterer is connected to the water inlet of the pipeline mixer through pipelines . The process and device of the invention have a high recovery rate of magnetic seeds, and recover and process demagnetized sludge, which is environmentally friendly, efficient and fast.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a mine water magnetic separation water purification process and equipment for underground coal mines. Background technique [0002] In the process of coal mining, groundwater is in contact with coal seams and rock formations, coupled with the impact of human activities, a series of physical, chemical and biochemical reactions have taken place, so the water quality has significant characteristics of the coal industry: the suspension of mine water containing suspended matter The content of suspended solids is much higher than that of surface water, and the sensory properties are poor; and the suspended solids contained have small particle size, light specific gravity, slow settling speed, and poor coagulation effect; mine water also contains organic pollutants such as waste engine oil and emulsified oil. The total ion content contained in mine water is much higher than tha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/48C02F1/52C02F1/54C02F1/56C02F103/10
CPCC02F1/488C02F1/5236C02F1/5245C02F1/54C02F1/56C02F2103/10C02F2201/002C02F2201/007
Inventor 丁岳云丁小玲
Owner JIANGSU TIAN XIN WATER TREATMENT EQUIP
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