Mine water magnetic separation water purification process and device used in coal mine

A water purification and magnetic separation technology, which is applied in water/sewage treatment equipment, water/sewage treatment, mining wastewater treatment, etc. It can solve the problems of slow flocculation reaction process, low purification efficiency, and the quality of effluent needs to be improved, and achieve the improvement effect. , high recovery rate, shorten the effect of flocculation mixing time

Active Publication Date: 2019-10-25
JIANGSU TIAN XIN WATER TREATMENT EQUIP
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  • Abstract
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  • 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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  • Mine water magnetic separation water purification process and device used in coal mine
  • Mine water magnetic separation water purification process and device used in coal mine
  • Mine water magnetic separation water purification process and device used in coal mine

Examples

Experimental program
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Effect test

Embodiment 1

[0048] Such as figure 1 As shown, a mine water magnetic separation water purification equipment used in underground coal mines mainly includes pipeline mixer 1, coagulation tank 2, magnetic seed addition tank 3, flocculation device 4, sedimentation tank 5, magnetic separation device 6, and 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 chamber 41, a disorderly agitator 42, a dosing device 43, and a drive motor 44; the dosing device 43 is provided with a connecting air pipe 45, a dosing device 46, a circulating air pump 47, and a dosing device 46 There are multiple, arranged on the upper part of the surrounding wall of the flocculation bin body 41 at equal intervals in the circumferential direction; the dosing device 46 includes a drug storage bin 461, a drug-distributing leaf 462, a transmiss...

Embodiment 2

[0066] Embodiment 2 is basically the same as embodiment 1, and differs from embodiment 1 in that:

[0067] A water purification process for magnetic separation of mine water used in underground coal mines includes the following steps:

[0068] S1: Inject the mine water through the inlet end of the pipeline mixer 1, and at the same time, the volume flow rate of the mine water is 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 It is composed of one part of ionic polyacrylamide and one part of alkanolamide. The coagulant composed of the above-mentioned ratio has 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 wat...

Embodiment 3

[0075] Example 3 is basically the same as Example 1, but differs from Example 1 in that:

[0076] A water purification process for magnetic separation of mine water used in underground coal mines includes the following steps:

[0077] S1: Inject the mine water through the inlet end of the pipeline mixer 1, and at the same time reduce the volume flow of the mine water to 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 by weight of ferric chloride, 5 parts of aluminum sulfate, 3 parts of volcanic rock powder, 8 parts by weight It is composed of one part ionic polyacrylamide and two parts alkanolamide. The coagulant composed of the above-mentioned ratio has 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 ...

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Abstract

A mine water magnetic separation water purification process and device used in coal mine are disclosed. The device mainly comprises a pipeline mixer, a coagulation tank, a magnetic seed adding tank, aflocculation device, a sedimentation tank, a magnetic separation device, a water purification after-treatment device, a sludge dewatering machine, wherein the pipeline mixer, the coagulation tank, the magnetic seed adding tank, the flocculation device and the sedimentation tank are connected in turn through the pipeline, and the magnetic mud outlet and water purifying outlet of the sedimentationtank are connected with the magnetic separation device and the water purifying after-treatment device through the pipeline; the mud outlet of the magnetic separation device is connected with the sludge dewatering machine through a pipeline; the magnetic seed port of the magnetic separation device is connected with the magnetic seed adding tank through a pipeline, and the sludge dewatering machineis connected with the water inlet end of the pipeline mixer through a pipeline. The process and the device of the invention have the advantages of high recovery rate of magnetic seeds, recycling treatment of demagnetized sludge, environmental protection, high efficiency and rapidity.

Description

Technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a water purification process and equipment for magnetic separation of mine water used in 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 influence of human activities, a series of physical, chemical and biochemical reactions have occurred, so the water quality has a significant coal industry characteristic: the suspension of mine water containing suspended solids The content of material is much higher than that of surface water, and the sensory properties are poor; and the suspended solids contained in it 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 in mine water is much higher than that of general...

Claims

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Application Information

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Patent Type & Authority Applications(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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