CN109650693A - A kind of coal slime filter aid add-on system and method - Google Patents
A kind of coal slime filter aid add-on system and method Download PDFInfo
- Publication number
- CN109650693A CN109650693A CN201811588570.1A CN201811588570A CN109650693A CN 109650693 A CN109650693 A CN 109650693A CN 201811588570 A CN201811588570 A CN 201811588570A CN 109650693 A CN109650693 A CN 109650693A
- Authority
- CN
- China
- Prior art keywords
- filter aid
- filter
- pump
- coal
- adding tube
- 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
- 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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
Abstract
A kind of coal slime filter aid add-on system of the present invention and method, belong to coal production processing technique field；The present invention improves the rate of filtration of ore pulp, while the medicine for reducing filter cake moisture and filter aid consumes；The system includes thickener, underflow pump, filter aid adding tube, filter aid dissolving bucket, addition pump, feeding mixing barrel, feed pump and filter press, the discharge gate of thickener is connected with the entrance of underflow pump, the outlet of underflow pump is connected with the feed inlet of filter aid adding tube front end, filter aid dissolving bucket is pumped into another feed inlet of filter aid adding tube front end with addition after dissolving filter aid, the tail end of filter aid adding tube is connected with the feed inlet of feeding mixing barrel, the discharge gate of feeding mixing barrel is connected with the import of feed pump, the outlet of feed pump is connected with the feed inlet of filter press.
Description
Technical field
A kind of coal slime filter aid add-on system of the present invention and method, more particularly to the addition of coal preparation plant's coal slime filter aid.
Background technique
Coal is as the most important energy in China, within the following considerable time, in non-renewable energy consumption structure
Leading position will not change.Moisture is an important quality index of coal product.In the use of steam coal and coking coal
In the process, moisture in coal is higher will consume partial heat, therefore, the gross energy that yield and thermal coal for coke oven generate
All decrease；The exceeded of moisture of cleaned coal not only will increase transport pressure, also affect the utilization of subsequent coal product.
Currently, the dehydration of coal preparation plant, China coal slime is mainly based on filter-press dehydration.Filter-press dehydration be by compressed air with
And the effect of other external force, the material that solid, liquid two-phase is constituted make liquid phase pass through filter medium reality under the action of pressure difference
The dewatering being now separated by solid-liquid separation.During coal preparation plant's coal slime filter-press dehydration, when the content of subparticle in filter material is high
When, the rate of filtration caused by the densification of Yi Fasheng filter cake, poor air permeability, filter cloth block reduces, filter cake moisture improves, at filter plant
The problems such as reason ability reduction, have seriously affected the economic benefit of enterprise.It in order to solve these problems, can be outstanding using changing
The granularmetric composition of floating object material solid material increases solid content, is pushed with Novel filtration medium, increase filter area, increasing filtering
Power and introducing the methods of compound force field and heat-force dry, but these methods are largely directed to change existing equipment or technique
Process, scale of investment are larger.Nowadays solid-liquid separation process, the research of equipment and the exploitation of various types drainage medicament is solid-liquid point
Hot spot from research, not changing existing filter plant and coal preparation technique, that the method for filter aid is added directly into ore pulp is thin to improving
Grain material filters pressing effect just have it is quick, easy, reduce investment outlay, quick superiority.Effective dispersion of medicament facilitates
Coal slime particle forms more floc sedimentations, improves the rate of filtration, reduces filter cake moisture and reagent consumption.However, traditional in coal preparation plant
Dosing method be that directly medicament is added in agitator, agitator revolving speed is low, and turbulence intensity is small, and medicament dispersion is uneven,
Filter aid cannot give full play to drug effect.
Summary of the invention
A kind of coal slime filter aid add-on system of the present invention and method, overcome the shortcomings of the prior art, provide
The high rate of filtration of ore pulp, while reducing coal slime filter aid add-on system and the side of the medicine consumption of filter cake moisture and filter aid
Method.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows: a kind of coal slime filter aid add-on system, packet
Thickener, underflow pump, filter aid adding tube, filter aid dissolving bucket, addition pump, feeding mixing barrel, feed pump and filter press are included, it is dense
The discharge gate of contracting machine is connected with the entrance of underflow pump, and the outlet of underflow pump is connected with the feed inlet of filter aid adding tube front end, helps
Filtering agent dissolving bucket is pumped into another feed inlet of filter aid adding tube front end, filter aid adding tube with addition after dissolving filter aid
Tail end be connected with the feed inlet of feeding mixing barrel, the discharge gate of feeding mixing barrel is connected with the import of feed pump, feed pump
Outlet is connected with the feed inlet of filter press.
Further, the filter aid is aluminium polychloride or polyacrylamide.
Further, the filter aid adding tube is Venturi tube.
Further, the filter press is the one of plate and frame filter press, chamber-type press filter, vertical type blotter press or belt filter press
Kind.
A kind of coal slime filter aid adding method is completed based on a kind of above-mentioned coal slime filter aid add-on system, including following
Step:
S1. the drainage agent solution of concentration required for being formulated as filter aid with filter aid dissolving bucket, it is with addition pump that filter aid is molten
Liquid is added to filter aid adding tube；
S2. the ore pulp in thickener is pumped into filter aid adding tube with underflow pump, ore pulp be transported to after being mixed with drainage medicament into
Expect agitator；
S3. the ore pulp after futher stirring in feeding mixing barrel filter press is pumped into drainage agent composition with feed pump to press
Filter；
S4. the cleaned coal or tail coal leaching cake that meet moisture requirement are obtained after filters pressing.
Further, the ore pulp is floatation clean coal ore pulp or floating tail-coal ore pulp.
The present invention has the advantages that compared with prior art.
1. the filter aid in present system adds relative to medicament is directly added to the method in agitator in coal preparation plant
Add pipe to be capable of forming jet stream, filter aid be mixed into ore pulp using negative pressure, turbulence intensity is big, medicament be uniformly dispersed and effectively with
Interaction between particles in ore pulp, drainage medicament can give full play to drug effect, and effective dispersion of medicament facilitates coal slime particle and formed
More floc sedimentations improve the rate of filtration, reduce filter cake moisture and reagent consumption.
2. present system is technically simple, operation is easy, and is suitble to coal preparation plant's transformation or is increased medicament add-on system, only need to be
Add a medicament adding tube on original base.The present invention is added in medicament increases a medicament adding tube between pump and agitator,
Keep filter aid fully dispersed, and mixes filter aid with ore pulp.Therefore, the technical solution is easy to operate, equipment investment is few, operation
It is at low cost, it is easy to accomplish.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of present system.
In figure, 1- thickener, 2- underflow pump, 3- filter aid adding tube, 4- filter aid dissolving bucket, 5- addition pump, 6- pan feeding
Agitator, 7- feed pump, 8- filter press.
Specific embodiment
Following further describes the present invention with reference to the drawings.
As shown in Figure 1, a kind of coal slime filter aid add-on system of the present invention, including the addition of thickener 1, underflow pump 2, filter aid
Pipe 3, filter aid dissolving bucket 4, addition pump 5, feeding mixing barrel 6, feed pump 7 and filter press 8, the discharge gate of thickener 1 and underflow
The entrance of pump 2 is connected, and the outlet of underflow pump 2 is connected with the feed inlet of 3 front end of filter aid adding tube, and filter aid dissolving bucket 4 will help
Pump the 5 another feed inlets for being pumped into 3 front end of filter aid adding tube with addition after filtering agent dissolution, the tail end of filter aid adding tube 3 with enter
Expect agitator 6 feed inlet be connected, the discharge gate of feeding mixing barrel 6 is connected with the import of feed pump 7, the outlet of feed pump 7 and
The feed inlet of filter press 8 is connected.
When implementation, filter aid can use aluminium polychloride or polyacrylamide.Filter aid adding tube 3 is Venturi tube.
Filter press 8 is one kind of plate and frame filter press, chamber-type press filter, vertical type blotter press or belt filter press.
The present invention also provides a kind of coal slime filter aid adding methods, complete based on a kind of above-mentioned coal slime filter aid add-on system
At, comprising the following steps:
S1. the drainage agent solution of concentration required for being formulated as filter aid with filter aid dissolving bucket 4 pumps 5 for filter aid with addition
Solution is added to filter aid adding tube 3；
S2. the ore pulp in thickener 1 is pumped into filter aid adding tube 3 with underflow pump 2, ore pulp is transported to after mixing with drainage medicament
Feeding mixing barrel 6；
Here ore pulp can be floatation clean coal ore pulp or floating tail-coal ore pulp.
S3. the ore pulp after futher stirring in feeding mixing barrel 6 and drainage agent composition are pumped into filter press with feed pump 7
8 carry out filters pressing；
S4. the cleaned coal or tail coal leaching cake that meet moisture requirement are obtained after filters pressing.
The present invention generates Venturi effect using filter aid adding tube, is capable of forming jet stream, is mixed filter aid using negative pressure
It closes in ore pulp, turbulence intensity is big, and medicament is uniformly dispersed and effectively with the Interaction between particles in ore pulp, and drainage medicament can be sufficiently
Drug effect is played, effective dispersion of medicament facilitates coal slime particle and forms more floc sedimentations, improves the rate of filtration, reduce filter cake moisture
With reagent consumption.
Although being particularly shown and describing the present invention, those skilled in the art referring to its exemplary embodiment
It should be understood that in the case where not departing from the spirit and scope of the present invention defined by claim form can be carried out to it
With the various changes in details.
Claims (6)
1. a kind of coal slime filter aid add-on system, it is characterised in that: including thickener (1), underflow pump (2), filter aid adding tube
(3), filter aid dissolving bucket (4), addition pump (5), feeding mixing barrel (6), feed pump (7) and filter press (8), thickener (1)
Discharge gate is connected with the entrance of underflow pump (2), and the outlet of underflow pump (2) is connected with the feed inlet of filter aid adding tube (3) front end,
Filter aid dissolving bucket (4) is pumped into another feed inlet of filter aid adding tube (3) front end with addition pump (5) after dissolving filter aid,
The tail end of filter aid adding tube (3) is connected with the feed inlet of feeding mixing barrel (6), the discharge gate and pan feeding of feeding mixing barrel (6)
The import for pumping (7) is connected, and the outlet of feed pump (7) is connected with the feed inlet of filter press (8).
2. a kind of coal slime filter aid add-on system according to claim 1, it is characterised in that: the filter aid is polymerization chlorine
Change aluminium or polyacrylamide.
3. a kind of coal slime filter aid add-on system according to claim 1, it is characterised in that: the filter aid adding tube
It (3) is Venturi tube.
4. a kind of coal slime filter aid add-on system according to claim 1, it is characterised in that: the filter press (8) is plate
One kind of frame filter press, chamber-type press filter, vertical type blotter press or belt filter press.
5. a kind of coal slime filter aid adding method, it is characterised in that: based on a kind of any coal slime drainage of claim 1-4
Agent add-on system is completed, comprising the following steps:
S1. the drainage agent solution of concentration required for being formulated as filter aid with filter aid dissolving bucket (4) will be helped with addition pump (5)
Filtering agent solution is added to filter aid adding tube (3)；
S2. the ore pulp in thickener (1) is pumped into filter aid adding tube (3) with underflow pump (2), after ore pulp is mixed with drainage medicament
It is transported to feeding mixing barrel (6)；
S3. the ore pulp after futher stirring in feeding mixing barrel (6) and drainage agent composition are pumped into filter press with feed pump (7)
(8) filters pressing is carried out；
S4. the cleaned coal or tail coal leaching cake that meet moisture requirement are obtained after filters pressing.
6. a kind of coal slime filter aid adding method according to claim 5, it is characterised in that: the ore pulp is floatation clean coal
Ore pulp or floating tail-coal ore pulp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811588570.1A CN109650693A (en) | 2018-12-25 | 2018-12-25 | A kind of coal slime filter aid add-on system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811588570.1A CN109650693A (en) | 2018-12-25 | 2018-12-25 | A kind of coal slime filter aid add-on system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109650693A true CN109650693A (en) | 2019-04-19 |
Family
ID=66115094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811588570.1A Pending CN109650693A (en) | 2018-12-25 | 2018-12-25 | A kind of coal slime filter aid add-on system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109650693A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110790469A (en) * | 2019-11-08 | 2020-02-14 | 中国矿业大学 | Process and device for improving pressure filtration performance of tail coal slime by coal gasification fine slag |
Citations (5)
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|---|---|---|---|---|
| US20060097090A1 (en) * | 2001-02-26 | 2006-05-11 | William Graham | System and method for pulverizing and extracting moisture |
| CN203370393U (en) * | 2013-06-27 | 2014-01-01 | 中煤平朔集团有限公司 | Chemical dosing device for strengthening dehydration effect of pressurized filter by using aluminium polychlorid filter aid |
| CN205556193U (en) * | 2016-04-27 | 2016-09-07 | 北京宇润环境工程有限公司 | Water treatment agent charge device |
| WO2017174973A1 (en) * | 2016-04-04 | 2017-10-12 | Allard Services Ltd | Solid-liquid crude oil compositions and fractionation processes thereof |
| CN107265823A (en) * | 2017-08-02 | 2017-10-20 | 曲靖市沾益区龙鑫资源回收有限公司 | A kind of dehydration of mine tailing coal slirne press dry technique |
-
2018
- 2018-12-25 CN CN201811588570.1A patent/CN109650693A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060097090A1 (en) * | 2001-02-26 | 2006-05-11 | William Graham | System and method for pulverizing and extracting moisture |
| CN203370393U (en) * | 2013-06-27 | 2014-01-01 | 中煤平朔集团有限公司 | Chemical dosing device for strengthening dehydration effect of pressurized filter by using aluminium polychlorid filter aid |
| WO2017174973A1 (en) * | 2016-04-04 | 2017-10-12 | Allard Services Ltd | Solid-liquid crude oil compositions and fractionation processes thereof |
| CN205556193U (en) * | 2016-04-27 | 2016-09-07 | 北京宇润环境工程有限公司 | Water treatment agent charge device |
| CN107265823A (en) * | 2017-08-02 | 2017-10-20 | 曲靖市沾益区龙鑫资源回收有限公司 | A kind of dehydration of mine tailing coal slirne press dry technique |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110790469A (en) * | 2019-11-08 | 2020-02-14 | 中国矿业大学 | Process and device for improving pressure filtration performance of tail coal slime by coal gasification fine slag |
| CN110790469B (en) * | 2019-11-08 | 2021-03-02 | 中国矿业大学 | Process and device for improving pressure filtration performance of tail coal slime by coal gasification fine slag |
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Application publication date: 20190419 |