Treatment system for converting mine waste-rock dredging drainage water into production water
A treatment system and production water technology, applied in the field of treatment systems, can solve the problems of low natural settlement treatment efficiency, low effluent utilization rate, and failure to achieve expected results, so as to improve the level of water resource utilization, improve the water resource environment, Good water quality
Active Publication Date: 2015-05-20
STATE GRID HEBEI ENERGY TECH SERVICE CO LTD
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Problems solved by technology
[0004] At present, natural settlement or simple coagulation-sedimentation treatment is used to deal with mine gangue drainage. The natural settlement treatment efficiency is low, and the traditional simple coagulation-sedimentation treatment fails to achieve the expected effect. After simple coagulation treatment The water utilization rate of the system is not high, and the general choice is to discharge it on the spot, which causes a great waste of water resources
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[0015] The present invention is described in detail below in conjunction with accompanying drawing:
[0016] See attached figure 1 , the present invention includes a sludge treatment system and a raw water tank 1 with a raw water pump, a pipeline mixer 19, a star-shaped flocculation tank 2, an inclined plate sedimentation tank 3, a filter tank 5 and a clean water tank 6 connected in sequence through pipelines;
[0017] The pipeline mixer 19 communicates with the flocculant water tank 11 and the coagulant aid water tank 12 through the flocculant dosing pump 21 and the coagulant aid dosing pump 22 respectively, and the filter pool 5 communicates with the pipeline with the Roots blower 15 , the clean water pool 6 communicates with the filter backwash water pump 16, the clean water pool 6 is connected with the auxiliary machine circulating water treatment system 9 and the boiler feed water treatment system 10 in the water system through a delivery pipe, and the filter pool 5 passe...
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The invention discloses a treatment system for converting mine waste-rock dredging drainage water into production water. The system comprises a sludge treatment system, as well as a primary water tank with a primary water pump, a pipeline mixer, a star-shaped flocculation tank, a cantboard sedimentation tank, a filtering tank and a clear water tank which are sequentially communicated by virtue of pipelines; the pipeline mixer is communicated with a coagulant aid water tank by virtue of a flocculating agent medicine adding pump, an coagulant aid medicine adding pump and a flocculating agent water tank; the filtering tank is communicated with a pipeline with a Roots blower; a clear water tank is communicated with a backwashing water pump of a filter and is connected with an auxiliary machine circulating water treatment system and a boiler feedwater treatment system in a water-consuming system through delivery pipes; the filter tank is communicated with the primary water tank by virtue of the backwashing drainage pipeline of the filter. By virtue of multi-layered sewage purification, the mine waste-rock dredging drainage water can be effectively subjected to solid-liquid separation treatment, a large quantity of coal dust particles in the water body can be removed, and backwashing drainage water of the filter returns to the primary water tank to be recycled so as not to result in waste of resources, thus saving energy resources.
Description
technical field [0001] The invention relates to a treatment system for transforming gangue dredging drainage into production water. Background technique [0002] Every 1 ton of coal produced in China discharges about 2.5 tons of mine water on average, and the annual discharge of coal mines in the country is about 7 billion to 9 billion cubic meters. In 2009, my country's raw coal production reached 305,000 tons, and the mine water discharge was about 9.15 billion cubic meters. If the waste water is discharged outside without treatment, it will not only waste precious water resources, but also cause serious pollution to the mining area and its surrounding areas. At present, the utilization rate of mine gangue drainage is not high. The main reason is that it is affected by coal mining, which leads to high salinity, high content of suspended solids and large fluctuations (mainly coal dust particles). The composition of mine dredging drainage water is complex, the salt content ...
Claims
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IPC IPC(8): C02F9/04C02F103/10
Inventor 张立军刘克成何彩燕高燕宁任汉涛刘强孙小军莫中宝张建华马东伟周慧波
Owner STATE GRID HEBEI ENERGY TECH SERVICE CO LTD