System and method for treating high suspended matter mine water

The technology of a treatment system and treatment method is applied in the field of treatment systems for mine water with high suspended solids, which can solve the problems of high mining construction cost, complicated technological process and high technical requirements for operation, so as to save resources, prolong service life and improve treatment efficiency. Effect

Inactive Publication Date: 2019-03-29
SHENMU ZHANGJIAMAO COAL MINING CO LTD OF SHAANXI COAL & CHEM IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these conventional coagulation-sedimentation, flocculation reaction-sedimentation and other processes have the problems of complex process, high technical requirements for operation, and large area occupation, which lead to defects such as long water treatment chambers and high mine construction costs, and cannot meet the needs of large-scale, high-suspended solids mine water treatment

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  • System and method for treating high suspended matter mine water
  • System and method for treating high suspended matter mine water
  • System and method for treating high suspended matter mine water

Examples

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Effect test

Embodiment 1

[0037] Such as figure 1 As shown, the present embodiment provides a treatment system for high-suspended-suspended mine water, which includes a regulating tank connected in sequence with water pipes, a water inlet pump, a coagulator, and a purifier. Wherein, the bottom of the purifier is connected with a sludge storage tank, and the top of the purifier is connected with a water production tank. A PAC dosing device is provided between the water inlet pump and the coagulator, and PAC is stored in the PAC dosing device to add PAC to the mine water before entering the coagulator. The coagulator is a swirling flow coagulator. The coagulator includes an upper end and a lower end. The inner diameter of the upper end is larger than the inner diameter of the lower end. The mine water enters the coagulator along the tangential direction of the upper end, and PAC and suspended particles are vortexed in the coagulator for a short time. Leave the coagulator after flash mixing. A PAM dosin...

Embodiment 2

[0042] The present embodiment provides a kind of treatment method of high suspended solids mine wastewater, which comprises the following steps:

[0043] Step 1: Lead the mine water into the adjustment tank for pretreatment, and then pump the mine water into the coagulator for coagulation.

[0044] Step 2: Introduce the coagulated mine water into the purifier, and in the purifier first perform the secondary cyclone centrifugation process of swirling downwards and then swirling upwards; during the downward swirling process, under the action of centrifugal force The suspended particles and alum flowers formed in the mine water are thrown to the wall of the device, and slide down the inner wall to the conical sludge storage area under the downward swirling flow and its own gravity, thereby removing most of the suspended solids; the mine water swirls downward When the flow reaches a certain level, it moves closer to the center to form an upward swirling flow, using the centrifugal...

Embodiment 3

[0046] The present embodiment provides a kind of treatment method of high suspended matter mine water, and it comprises the steps:

[0047] Step 1: Lead the mine water into the adjustment tank for pretreatment, add PAC to it after pretreatment, and then pump the mine water into the coagulator, the mine water enters the coagulator along the tangential direction of the inner wall of the coagulator, Swirling flash mixing is formed.

[0048] Step 2: Add PAM to the mine water that has undergone cyclone flash mixing, and then import the mine water into the purifier. In the purifier, firstly carry out the secondary cyclone centrifugation process of downward swirling and then upward swirling; downward swirling During the flow process, under the action of centrifugal force, the suspended particles and alum flowers formed in the mine water are thrown to the wall of the device, and slide down the inner wall to the conical sludge storage area under the downward swirling flow and its own g...

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Abstract

The invention discloses a system and method for treating high suspended matter mine water, and relates to the technical field of mine water treatment. The system for treating the high suspended mattermine water provided by the invention comprises a regulating tank, a water feeding pump, a mixing condenser and a purifier which are sequentially connected by using water pipes; the bottom of the purifier is connected with a sludge storage tank, and the top of the purifier is connected with a water production pool; the purifier is a cyclone purifier; and the purifier successively performs two-stage cyclone centrifugal separation on the mine water by means of downward swirling and upward swirling. The method for treating the high suspended matter mine water provided by the invention is based onthe system. According to the invention, the system and the method realize multi-stage purification treatment of the mine water by integrating flocculation, sedimentation, filtration and clarificationtechnologies, and has the characteristics of being continuous and efficient; solid and liquid are separated according to different centrifugal forces, instead of traditional gravity sedimentation separation; as long as a density difference exists, the separation is thorough; and due to thorough purification, purified water can be used as a deep treatment water source to be directly recycled or discharged in accordance with standards.

Description

technical field [0001] The invention relates to the technical field of mine water treatment, in particular to a treatment system and method for mine water with high suspended matter. Background technique [0002] As an underground production activity, coal mining inevitably causes local damage and pollution to the underground aquifer system. According to statistics, the total annual displacement of mines in my country is more than 2.2 billion tons, while its reuse rate is less than 20%, which is an astonishing waste of water resources. Due to the ultra-limit dredging of groundwater in mining activities, the natural balance of underground and surface water in some energy bases has been severely damaged, and a large amount of mine sewage has been discharged to the ground, causing serious pollution of surface and groundwater in mining areas and degradation of the farming environment; large-scale decline in groundwater levels has caused Surface subsidence, land subsidence and o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F103/10
CPCC02F1/001C02F1/38C02F1/5236C02F1/56C02F9/00C02F2103/10C02F2303/14
Inventor 郭佐宁李文俊王碧清薛忠新韩伟
Owner SHENMU ZHANGJIAMAO COAL MINING CO LTD OF SHAANXI COAL & CHEM IND GRP
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