CN107285510A - A kind of slime water treatment method - Google Patents
A kind of slime water treatment method Download PDFInfo
- Publication number
- CN107285510A CN107285510A CN201710509273.2A CN201710509273A CN107285510A CN 107285510 A CN107285510 A CN 107285510A CN 201710509273 A CN201710509273 A CN 201710509273A CN 107285510 A CN107285510 A CN 107285510A
- Authority
- CN
- China
- Prior art keywords
- coal slime
- coal
- slime
- warehouse
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Analytical Chemistry (AREA)
- Mechanical Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The present invention relates to coal slime processing technology field, specifically related to a kind of slime water treatment method, prior art flow is first to more complicated, black water after coal washing is pipelined to the underflow concentration basin in coal washery, flocculant is added into underflow concentration basin by slime water concentration so that the solid content in black water reaches 300~400g/L；Coal slime is transported in the coal slime with agitating device in warehouse, coal slime in warehouse coal slime is continuously stirred；Coal slime in coal slime in warehouse is squeezed into by coal slime conveyance conduit by plunger pump, coal slime is transported in fluidized-bed combustion boiler by coal slime conveyance conduit and burnt.The inventive method connects the pipeline that slime water concentration prepares coal slime and coal slime, realizes simplified integrated artistic link, reduces equipment investment, reduces and takes up an area, and improves system effectiveness, the target of the strengthening system feature of environmental protection.
Description
Technical field
The present invention relates to coal slime processing technology field, and in particular to a kind of slime water treatment method.
Background technology
Coal slime refers to the semi-solid thing of the aqueous formation of coal dust, is a kind of product in coal production process, according to kind
The difference of different and formation mechenism, its nature difference is very big, and utilizability also has bigger difference, and its huge number, purposes is wide
It is general.Because coal slime has many unfavorable conditions such as high-moisture, high viscosity, high retentiveness and low heat value, commercial Application is difficult to realize,
Kept outside of the door, sold with civilian for main outlet by power consumer for a long time.Since reform and opening-up, national economy has swift and violent hair
Exhibition, coal production has leapt to the first in the world, and Market Situation also there occurs great changes.The depth and range of Coal dressing are all fast
Speed development, the yield of coal slime substantially rises, the problem of comprehensive utilization of coal slime turns into the urgent need to address.
The content of the invention
The invention provides a kind of slime water treatment method, it is therefore an objective to solves the dosage that flocculated in existing slime water treatment technology
Greatly, there are secondary pollution, the problems such as high polymer coagulant is difficult to be degraded and is toxic.
The technical scheme that solution above-mentioned technical problem is used includes following steps：
(1), the black water after coal washing is pipelined to the underflow concentration basin in coal washery, is concentrated to underflow
Flocculant is added in pond by slime water concentration so that the solid content in black water reaches 300~400g/L；
(2) black water after concentration, is delivered directly to the horizontal spiral being arranged in power plant by Pulp pump and pipeline
Centrifuge is dehydrated, and produces coal slime, controls coal slime concentration by adjusting horizontal spiral centrifuge rotating speed so that the water in coal slime
Mass percent be 27%~38%；
(3), from centrifuge haul out moisture by Pulp pump and pipeline to coal washery, recycled；
(4), coal slime is transported in the coal slime with agitating device in warehouse, coal slime in warehouse coal slime is continuously stirred
Mix；
(5) coal slime in coal slime in warehouse, is squeezed into by coal slime conveyance conduit by plunger pump, will by coal slime conveyance conduit
Coal slime, which is transported in fluidized-bed combustion boiler, is burnt.
Coal slime is burnt in fluidized-bed combustion boiler using ripe prior art.
The present invention is compared with traditional handicraft, and whole process procedure greatly reduces, and the labor intensity of workman is reduced, due to whole
Individual process coal slime do not land, not exposed, so more environmentally-friendly, it is not necessary to carry out strong stirring and removal of impurities to coal slime, whole system
Equipment can continuously be run, overcome board-like filtering equipment can only intermittent duty shortcoming, coal slime water content and flow are more
Be easily controlled, the characteristics of coal slime pipeline transportation distance has flexibly adjustable, can overcome long-distance transportation through pipeline bring it is difficult with
Greater energy consumption.
Embodiment
Black water after coal washing is pipelined to the underflow concentration basin in coal washery, into underflow concentration basin
Flocculant is added by slime water concentration so that the solid content in black water reaches 300~400g/L；
(2) black water after concentration, is delivered directly to the horizontal spiral being arranged in power plant by Pulp pump and pipeline
Centrifuge is dehydrated, and produces coal slime, controls coal slime concentration by adjusting horizontal spiral centrifuge rotating speed so that the water in coal slime
Mass percent be 27%~38%；
(3), from centrifuge haul out moisture by Pulp pump and pipeline to coal washery, recycled；
(4), coal slime is transported in the coal slime with agitating device in warehouse, coal slime in warehouse coal slime is continuously stirred
Mix；
(5) coal slime in coal slime in warehouse, is squeezed into by coal slime conveyance conduit by plunger pump, will by coal slime conveyance conduit
Coal slime, which is transported in fluidized-bed combustion boiler, is burnt.
Claims (1)
1. a kind of slime water treatment method, it is characterised in that：Comprise the following steps：
(1), the black water after coal washing is pipelined to the underflow concentration basin in coal washery, into underflow concentration basin
Flocculant is added by slime water concentration so that the solid content in black water reaches 300~400g/L；
(2) black water after concentration, is delivered directly to the horizontal screw centrifugal being arranged in power plant by Pulp pump and pipeline
Machine is dehydrated, and produces coal slime, controls coal slime concentration by adjusting horizontal spiral centrifuge rotating speed so that the matter of the water in coal slime
It is 27%~38% to measure percentage；
(3), from centrifuge haul out moisture by Pulp pump and pipeline to coal washery, recycled；
(4), coal slime is transported in the coal slime with agitating device in warehouse, coal slime in warehouse coal slime is continuously stirred；
(5) coal slime in coal slime in warehouse, is squeezed into by coal slime conveyance conduit by plunger pump, by coal slime conveyance conduit by coal slime
It is transported in fluidized-bed combustion boiler and is burnt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710509273.2A CN107285510A (en) | 2017-06-28 | 2017-06-28 | A kind of slime water treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710509273.2A CN107285510A (en) | 2017-06-28 | 2017-06-28 | A kind of slime water treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107285510A true CN107285510A (en) | 2017-10-24 |
Family
ID=60099956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710509273.2A Pending CN107285510A (en) | 2017-06-28 | 2017-06-28 | A kind of slime water treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107285510A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110551552A (en) * | 2019-10-15 | 2019-12-10 | 山西焦煤集团有限责任公司 | process method for eliminating G value of electric coal |
-
2017
- 2017-06-28 CN CN201710509273.2A patent/CN107285510A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110551552A (en) * | 2019-10-15 | 2019-12-10 | 山西焦煤集团有限责任公司 | process method for eliminating G value of electric coal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171024 |