CN204079743U - A kind of Technique of Coal Mine Drainage sludge treatment equipment - Google Patents

A kind of Technique of Coal Mine Drainage sludge treatment equipment Download PDF

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Publication number
CN204079743U
CN204079743U CN201420450487.9U CN201420450487U CN204079743U CN 204079743 U CN204079743 U CN 204079743U CN 201420450487 U CN201420450487 U CN 201420450487U CN 204079743 U CN204079743 U CN 204079743U
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China
Prior art keywords
sludge
mud
cyclone separator
pump
outlet
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Expired - Fee Related
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CN201420450487.9U
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Chinese (zh)
Inventor
毛维东
郭中权
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China Coal Technology & Engineering Group Hangzhou Environmental Protection Research Institute Co Ltd
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China Coal Technology & Engineering Group Hangzhou Environmental Protection Research Institute Co Ltd
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Abstract

The utility model belongs to water treatment utilization and field of solid waste treating technology, a kind of Technique of Coal Mine Drainage sludge treatment equipment is disclosed, this device forms primarily of sludge concentration device, topping-up pump, cyclone separator, mud storage tank, sludge delivery pump and sludge filter press, sludge concentration device center is arranged for stablizing the feeding cylinder into pureed state, the bottom of sludge concentration device is cone shape mud collection device, and the outlet of mud collection device is connected with the import of topping-up pump; Sludge concentration device top, be provided with the comb mill weir that can fluctuate round feeding cylinder, the sewage that comb mill weir produces for discharging sludge condensation; Booster pump outlet is connected with cyclone separator import by valve; The outlet of sludge storage trench bottom is connected with sludge delivery pump import, and the mud after concentrated delivers to sludge filter press dehydration by sludge delivery pump.Device of the present utility model achieves the thickening process of pit water mud, the requirement meeting the transport of coal slime cake and utilize.

Description

A kind of Technique of Coal Mine Drainage sludge treatment equipment
Technical field
The utility model belongs to water treatment utilization and field of solid waste treating technology, relates to a kind of sludge treatment equipment, particularly a kind of Technique of Coal Mine Drainage sludge treatment equipment.
Background technology
Coal in China mining area is mainly distributed in the water-deficient areas such as East China, North China, northeast, northwest, being back to use productive life after treating mine drainage and having become one of main path solving mine water resource shortage, is also the specific requirement that national energy-saving reduces discharging policy and " mine drainage utilization ad hoc planning ", " mine drainage utilization development program ".The mud produced in treating mine drainage process, because water ratio is high, hydrophobicity is poor, has a strong impact on subsequent concentration and the processed of mud, is a difficult problem of puzzlement treating mine drainage always.
China's treating mine drainage is generally for the purpose of utilizing, water-quality guideline is paid much attention to, but pay attention to not to pit water sludge disposal technology, lack the technical study for coal mine sewage sludge, usually slurry of coal washing plant water or sludge from wastewater treatment plant treatment technology is applied mechanically, cause pit water sludge treatment facilities normally not run, treating mine drainage plant effluent water degradation, impact normally runs.
Pit water mud is the mixture of coal dust, rock dust, medicament and pit water bottom sinking in treating mine drainage process.Pit water mud is mainly from the link of two in mine water treatment technique: one is the mud of the gravitational settling of preliminary sedimentation equalizing tank, and another is the mud of the settling tank after dosing coagulation.The slime different in kind of pit water mud and wet process coal cleaning factory, as water ratio, solid-phase component, size composition are completely different, thus cause the specific impedance value (SRF) affecting dewatering performance of sludge also different with capillary water absorbing time (CST), simply can not apply mechanically the slime treatment technology of coal washery.Pit water mud is not identical with the sludge quality of the municipal sewage plant based on organism yet, so can not apply mechanically the sludge disposal technology of municipal sewage plant.
Pit water sludge treatment divides two stages: first concentrate, then dewater.Concentrate and mainly the water ratio of mud is reduced a little, increase the concentration of mud.After sludge condensation reaches finite concentration, just can be dewatered by device for dehydrating sladge waste, final formation sludge cake or walk, be convenient to transport and process further.
Pit water device for dehydrating sladge waste conventional at present mainly contains three classes: plate-and-frame filter press, belt filter press and centrifuge, because these dehydration equipments are not for the design of pit water mud, so operating performance is all undesirable.Wherein centrifuge effect is the poorest, dewatered sludge balling-up bulk, and interior dry outer rare, water ratio is higher, transport difficult.In coal washing sector application widely, its problem is complicated operation to plate-and-frame filter press, and labour intensity is large, and cannot run continuously, sludge dewatering treatment efficiency is lower, and mud clears difficulty, and sanitary condition is poor.Belt filter press has certain application in pit water sludge treatment, and Problems existing is also more, mainly high to feed needs, polyacrylamide chemical feeding quantity is larger, require that the fluctuation range of sludge concentration is less, strainer washing water quantity is comparatively large, also there is the problems such as filter bag sideslip in operational process.The mud of the mine water treatment system that the problems referred to above make cannot normal processing, becomes the topmost secondary pollution source for the treatment of mine drainage factory, and then have impact on the raising of Technique of Coal Mine Drainage processing and utilizing rate.
Utility model content
The utility model provides a kind of Technique of Coal Mine Drainage sludge treatment equipment, and have technical process simple, adaptable, the features such as operation energy consumption is low, achieve the thickening process of pit water mud, the requirement meeting the transport of coal slime cake and utilize.
The utility model solves the technical scheme that its technical problem adopts:
A kind of Technique of Coal Mine Drainage sludge treatment equipment, it is characterized in that: form primarily of sludge concentration device, topping-up pump, cyclone separator, mud storage tank, sludge delivery pump and sludge filter press, sludge concentration device center is arranged for stablizing the feeding cylinder into pureed state, the bottom of sludge concentration device is cone shape mud collection device, and the outlet of mud collection device is connected with the import of topping-up pump; Sludge concentration device top, be provided with the comb mill weir that can fluctuate round feeding cylinder, the sewage that comb mill weir produces for discharging sludge condensation; Booster pump outlet is connected with cyclone separator import by valve, and the pipeline between topping-up pump and cyclone separator is provided with sludge conditioning device; Be provided with thickened sludge discharge outlet bottom cyclone separator, thickened sludge discharge outlet is connected with mud storage tank, and sludge storage slot is in the below of cyclone separator, and the top of cyclone separator is provided with Sewage outlet; The outlet of sludge storage trench bottom is connected with sludge delivery pump import, and the mud after concentrated delivers to sludge filter press dehydration by sludge delivery pump.Device of the present utility model achieves the thickening process of pit water mud, the requirement meeting the transport of coal slime cake and utilize.Sludge conditioning device is inner, according to the difference of sludge quality and mine water treatment technique, can select that lime is nursed one's health, polyacrylamide conditioning, molten controlled atmosphere reason or above-mentioned conditioning mode combination realize sludge conditioning.Enter the moisture percentage in sewage sludge of sludge concentration device generally more than 98%, the moisture percentage in sewage sludge after concentrated is generally at about 96%-97%.
The mud of the water ratio more than 98% produced in treating mine drainage process enters sludge concentration device initial concentration, water ratio is reduced to about 96%-97% by entering cyclone separator after topping-up pump and sludge conditioning, be separated water ratio by centrifugal concentrating and be reduced to 90%-95% further, sludge filter press filter-press dehydration is delivered to by sludge delivery pump after being collected by mud storage tank, coal slime water ratio can reach less than 60%, the requirement meeting the transport of coal slime cake and utilize.The utility model reduces the moisture percentage in sewage sludge entering sludge filter press by sludge condensation, sludge conditioning and cyclonic separation, thus improve sludge filter press processing efficiency, reduce the water ratio of coal slime, the requirement meeting the transport of coal slime cake and utilize, there is technical process simple, adaptable, the features such as operation energy consumption is low, are especially applicable to the upgrading of existing sludge treatment equipment.
As preferably, the thickened sludge discharge outlet of cyclone separator is provided with valve.Sludge condensation rate and water ratio can be controlled, discharge the water ratio of mud generally at 90%-95%.
As preferably, sludge filter press is plate-and-frame filter press or chamber-type press filter.Coal moisture content of the cake≤60% of discharging.
The utility model is by the research to existing device for dehydrating sladge waste, increased the sludge concentration device of Curve guide impeller, topping-up pump, cyclone separator, mud storage tank and sludge conditioning equipment before device for dehydrating sladge waste after, improve the working conditions of sludge filter press, significantly reduce the water ratio of coal slime cake, the requirement meeting the transport of coal slime cake and utilize.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Label declaration: feeding cylinder 1, sludge concentration device 2, mud collection device 3, topping-up pump 4, cyclone separator 5, mud storage tank 6, sludge delivery pump 7, sludge filter press 8, sludge conditioning device 9, comb mill weir 10, thickened sludge discharge outlet 11, Sewage outlet 12.
Embodiment
Below by specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.Should be appreciated that enforcement of the present utility model is not limited to the following examples, any pro forma accommodation make the utility model and/or change all will fall into the utility model protection domain.
In the utility model, if not refer in particular to, all parts, per-cent are weight unit, and the equipment adopted and raw material etc. all can be buied from market or this area is conventional.Method in following embodiment, if no special instructions, is the ordinary method of this area.
Embodiment:
A kind of Technique of Coal Mine Drainage sludge treatment equipment as shown in Figure 1, be made up of sludge concentration device 2, topping-up pump 4, cyclone separator 5, mud storage tank 6, sludge delivery pump 7 and sludge filter press 8, sludge concentration device center is arranged for stablizing the feeding cylinder 1 into pureed state, the bottom of sludge concentration device is cone shape mud collection device 3, and the outlet of mud collection device is connected with the import of topping-up pump 4; Sludge concentration device top, be provided with the comb mill weir 10 that can fluctuate round feeding cylinder; Booster pump outlet is connected with cyclone separator import by valve, and the pipeline between topping-up pump and cyclone separator is provided with sludge conditioning device 9; The bottom of cyclone separator 5 is provided with thickened sludge discharge outlet 11, and thickened sludge discharge outlet is provided with valve, and thickened sludge discharge outlet is connected with mud storage tank, and sludge storage slot is in the below of cyclone separator, and the top of cyclone separator is provided with Sewage outlet 12; The outlet of sludge storage trench bottom is connected with sludge delivery pump import, and the mud after concentrated is delivered to sludge filter press 8 by sludge delivery pump and dewatered.
Sludge filter press is plate-and-frame filter press or chamber-type press filter.The mud of the water ratio more than 98% produced in treating mine drainage process enters sludge concentration device 2 initial concentration by feeding cylinder 1, water ratio is reduced to about 96%-97% and enters topping-up pump 4 by the mud collection device 3 bottom sludge concentration device, by entering cyclone separator after lime or polyacrylamide sludge conditioning, after eddy flow concentrating and separating, moisture percentage in sewage sludge is reduced to 90%-95% further, sludge condensation efficiency can be controlled by cyclone separator bottom valve, and discharge the mud after concentrating, after being collected by mud storage tank, sludge filter press filter-press dehydration is delivered to by sludge delivery pump, coal slime water ratio can reach less than 60%, the requirement meeting the transport of coal slime cake and utilize.Simultaneously because moisture percentage in sewage sludge is reduced to 90%-95% from 96%-97% by cyclone separator, the 30%-60% making the treatment capacity of device for dehydrating sladge waste be only original, substantially increases dewatering efficiency, reduces the labour intensity of workman.
Sludge concentration device top arranges the comb mill weir fluctuated, and is connected with sewage backflow pipe by flexible pipe, and the sewage backflow that sludge condensation produces is to treating mine drainage facility; The sewage at cyclone separator top is also back to treating mine drainage facility.
Above-described embodiment is one of the present utility model preferably scheme, not does any pro forma restriction to the utility model, also has other variant and remodeling under the prerequisite not exceeding the technical scheme described in claim.

Claims (3)

1. a Technique of Coal Mine Drainage sludge treatment equipment, it is characterized in that: form primarily of sludge concentration device, topping-up pump, cyclone separator, mud storage tank, sludge delivery pump and sludge filter press, sludge concentration device center is arranged for stablizing the feeding cylinder into pureed state, the bottom of sludge concentration device is cone shape mud collection device, and the outlet of mud collection device is connected with the import of topping-up pump; Sludge concentration device top, be provided with the comb mill weir that can fluctuate round feeding cylinder; Booster pump outlet is connected with cyclone separator import by valve, and the pipeline between topping-up pump and cyclone separator is provided with sludge conditioning device; Be provided with thickened sludge discharge outlet bottom cyclone separator, thickened sludge discharge outlet is connected with mud storage tank, and sludge storage slot is in the below of cyclone separator, and the top of cyclone separator is provided with Sewage outlet; The outlet of sludge storage trench bottom is connected with sludge delivery pump import, and the mud after concentrated delivers to sludge filter press dehydration by sludge delivery pump.
2. Technique of Coal Mine Drainage sludge treatment equipment according to claim 1, is characterized in that: the thickened sludge discharge outlet of cyclone separator is provided with valve.
3. Technique of Coal Mine Drainage sludge treatment equipment according to claim 1 and 2, is characterized in that: sludge filter press is plate-and-frame filter press or chamber-type press filter.
CN201420450487.9U 2014-08-11 2014-08-11 A kind of Technique of Coal Mine Drainage sludge treatment equipment Expired - Fee Related CN204079743U (en)

Priority Applications (1)

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CN201420450487.9U CN204079743U (en) 2014-08-11 2014-08-11 A kind of Technique of Coal Mine Drainage sludge treatment equipment

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Application Number Priority Date Filing Date Title
CN201420450487.9U CN204079743U (en) 2014-08-11 2014-08-11 A kind of Technique of Coal Mine Drainage sludge treatment equipment

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Publication Number Publication Date
CN204079743U true CN204079743U (en) 2015-01-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106044913A (en) * 2016-06-12 2016-10-26 煤科集团杭州环保研究院有限公司 Method and device for concentration and separation of coal-containing sludge
CN110550845A (en) * 2019-08-20 2019-12-10 四川大学 Residual sludge non-phase change drying treatment system for domestic sewage treatment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106044913A (en) * 2016-06-12 2016-10-26 煤科集团杭州环保研究院有限公司 Method and device for concentration and separation of coal-containing sludge
CN106044913B (en) * 2016-06-12 2019-05-14 煤科集团杭州环保研究院有限公司 One kind separation method of sludge condensation containing coal and device
CN110550845A (en) * 2019-08-20 2019-12-10 四川大学 Residual sludge non-phase change drying treatment system for domestic sewage treatment
CN110550845B (en) * 2019-08-20 2022-03-15 四川大学 Domestic sewage treatment system

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150107

Termination date: 20190811

CF01 Termination of patent right due to non-payment of annual fee