CN109650616A - A kind of underground coal mine sewage treatment and water demineralization multiplexing method - Google Patents
A kind of underground coal mine sewage treatment and water demineralization multiplexing method Download PDFInfo
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- CN109650616A CN109650616A CN201811600125.2A CN201811600125A CN109650616A CN 109650616 A CN109650616 A CN 109650616A CN 201811600125 A CN201811600125 A CN 201811600125A CN 109650616 A CN109650616 A CN 109650616A
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- Prior art keywords
- water
- magnetic
- mine
- sludge
- sewage treatment
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
-
- 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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention provides a kind of underground coal mine sewage treatment and water demineralization multiplexing method, includes the following steps；Using chemical reaction+dosing flocculation reaction+Magneto separate+mud filters pressing treatment process, total salt quantity is not more than 1600mg/L after processing, reaches qualified outlet standard.The present invention can realize water body purification processing in underground, secondary pollution of the brought body refuse to environment in original ground water treatment procedure, obvious environment benefit are effectively reduced, water outlet reaches water reuse standard, it can also be used for fire demand water, or other industrial waters such as spray for being directly used in coal mine.
Description
Technical field
The present invention relates to a kind of sewage treatment field, especially a kind of underground coal mine sewage treatment and water demineralization multiplexing side
Method.
Background technique
Mine discharges a large amount of exceeded sewage without processing direct emission, will cause seriously to pollute to environment, while causing water
A large amount of wastes of resource.Coal mine sewage water quality is mainly that SS, COD, coloration etc. are exceeded, petroleum-type trace over standard, iron, manganese plasma
It is exceeded.Very big difficulty is brought to the selection of waste-water from coal mine Treatment process.The domestic processing method used is still tradition at present
Technique, although the technique treatment for reuse water effect is preferable, technique falls behind, and equipment, facility are complicated, and construction investment is big, takes up an area face
Product is more, and operating cost is high.
Summary of the invention
The present invention provides a kind of underground coal mine sewage treatment and water demineralization multiplexing method, processing technological flow are as follows:
(1) mine wastewater treatment chamber adds pipeline and respectively enters desalination system, in desalination system feeding lime cream and mine
Sulfate radical generates chemical reaction and generates calcium sulfate in well water, carries out desalination, and salt rejection rate reaches 90%, sinks naturally in desalination system
The calcium sulfate of drop enters sludge-tank by static pressure sludge drainage system；
(2) mine water after desalination carries calcium sulfate and the rock in raw water, coal dust gravity flow enter coagulation system, adds magnetic kind
With coagulant (PAC and PAM), suspended matter is made to form suspended matter in water with magnetic kind core by three-level stirring in 1-10 minutes
Closely knit wadding body；
(3) flow automatically again by the water after coagulation and carry out separation of solid and liquid purification into magnetic separator, magnetic separator passes through magnetic
Absorption is salvaged, and realizes mud-water separation, and effluent quality reaches standard gravity flow and enters sump；
(4) coal slime that magnetic separator is isolated is scraped through slag unloading device into magnetic separation drum；In the high speed dispersion of magnetic drum
Area realizes magnetic mud separation, is recycled by magnetic drum to magnetic kind, is recycled into next unit；Coal slime after de- magnetic, which is flow automatically, to be entered
Transfer pond is delivered to sludge-tank by relay pump；
(5) coal slime of sludge-tank is transported to filter press by sludge pump and carries out dehydration and drying, and filtrate flow to Magneto separate system certainly
System inlet channel, moisture content of the cake reach 20-40%, mine car outward transport.
Suspended matter is set so that suspended matter in water is formed closely knit wadding body by three-level stirring in 3min in the step 2.
Moisture content of the cake reaches 30% in the step 5, mine car outward transport.
Compared with prior art, the present invention can realize water body purification processing in underground, using chemical dosing desalination+magnetic point
From water treatment technology, cleaning principle is to make suspended matter and magnetic in water body by adding magnetic kind medium and micro- magnetic flocculation medicament
Kind is agglomerated together, is formed after having magnetic " alumen ustum ", by high-strength magnetic field caused by permanent-magnet material, in high-intensity magnetic field power
Under the action of to magnetic floc sedimentation carry out quick separating.Magnetic force is hundreds times of gravity, therefore Magneto separate water treatment technology is because of its point
It is fast from speed, hydraulic detention time is significantly shortened, the diminution for job facilities occupied area provides technical guarantee.Effectively
Ground reduces secondary pollution of the brought body refuse to environment, obvious environment benefit, water outlet in original ground water treatment procedure and reaches
Water reuse standard, it can also be used to other industrial waters such as fire demand water, or the spray that is directly used in coal mine.
Detailed description of the invention
Fig. 1 is process flow diagram of the invention.
Specific embodiment
The working principle of the invention is described below in conjunction with drawings and examples.
1. adding pipeline in mine wastewater treatment chamber and respectively enteing chemical reactor i.e. desalination system, in desalination system
Feeding lime cream and sulfate radical in mine water generate chemical reaction and generate calcium sulfate, carry out desalination, and salt rejection rate reaches 90%, de-
The calcium sulfate of natural subsidence enters sludge-tank by static pressure sludge drainage system in salt system；
2. the mine water after desalination carries calcium sulfate and the rock in raw water, coal dust gravity flow enter coagulation system, magnetic kind is added
With coagulant (PAC and PAM), suspended matter is made to form suspended matter in water with magnetic kind core by three-level stirring in 3 minutes
Closely knit wadding body.
3. flowing automatically again by the water after coagulation carries out separation of solid and liquid purification into magnetic separator, magnetic separator passes through magnetic
Attached salvaging, realizes mud-water separation, and effluent quality reaches standard gravity flow and enters sump.
4. the coal slime that magnetic separator is isolated is scraped through slag unloading device into magnetic separation drum；In the high speed dispersion of magnetic drum
Area realizes magnetic mud separation, is recycled by magnetic drum to magnetic kind, is recycled into next unit；Coal slime after de- magnetic, which is flow automatically, to be entered
Transfer pond is delivered to sludge-tank by relay pump.
5. the coal slime of sludge-tank is transported to filter press by sludge pump and carries out dehydration and drying, filtrate flow to magnetic separation system certainly
Inlet channel, moisture content of the cake reach 20-40%, mine car outward transport.
It is the preferred embodiment of the present invention above, it is noted that for those skilled in the art,
Various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should be regarded as this
The protection scope of invention.
Claims (3)
1. a kind of underground coal mine sewage treatment and water demineralization multiplexing method, it is characterised in that: processing technological flow is as follows:
(1) mine wastewater treatment chamber adds pipeline and respectively enters desalination system, in desalination system feeding lime cream and mine water
Middle sulfate radical generates chemical reaction and generates calcium sulfate, carries out desalination, and salt rejection rate reaches 90%, the natural subsidence in desalination system
Calcium sulfate enters sludge-tank by static pressure sludge drainage system；
(2) mine water after desalination carries calcium sulfate and the rock in raw water, coal dust gravity flow enter coagulation system, adds magnetic kind and mixes
Solidifying agent makes suspended matter form suspended matter in water with the closely knit wadding body of magnetic kind core by three-level stirring in 1-10 minutes；
(3) flow automatically again by the water after coagulation and carry out separation of solid and liquid purification into magnetic separator, magnetic separator passes through magnetic suck
It salvages, realizes mud-water separation, effluent quality reaches standard gravity flow and enters sump；
(4) coal slime that magnetic separator is isolated is scraped through slag unloading device into magnetic separation drum；It is real in the high speed dispersion area of magnetic drum
Existing magnetic mud separation, recycles magnetic kind by magnetic drum, is recycled into next unit；Coal slime gravity flow after de- magnetic enters transfer
Pond is delivered to sludge-tank by relay pump；
(5) coal slime of sludge-tank by sludge pump be transported to filter press carry out dehydration and drying, filtrate from flow to magnetic separation system into
Water channel, moisture content of the cake reach 20-40%, mine car outward transport.
2. a kind of underground coal mine sewage treatment and water demineralization multiplexing method as described in claim 1, it is characterised in that: the step
Suspended matter is set so that suspended matter in water is formed closely knit wadding body by three-level stirring in 3min in rapid 2.
3. a kind of underground coal mine sewage treatment and water demineralization multiplexing method as described in claim 1, it is characterised in that: the step
Moisture content of the cake reaches 30% in rapid 5, mine car outward transport.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811600125.2A CN109650616A (en) | 2018-12-26 | 2018-12-26 | A kind of underground coal mine sewage treatment and water demineralization multiplexing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811600125.2A CN109650616A (en) | 2018-12-26 | 2018-12-26 | A kind of underground coal mine sewage treatment and water demineralization multiplexing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109650616A true CN109650616A (en) | 2019-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811600125.2A Pending CN109650616A (en) | 2018-12-26 | 2018-12-26 | A kind of underground coal mine sewage treatment and water demineralization multiplexing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109650616A (en) |
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2018
- 2018-12-26 CN CN201811600125.2A patent/CN109650616A/en active Pending
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190419 |