CN101530824A - A coal dressing method and system of four-product jigging primary cleaning, secondary head coal small simplified heavy medium reelecting - Google Patents
A coal dressing method and system of four-product jigging primary cleaning, secondary head coal small simplified heavy medium reelecting Download PDFInfo
- Publication number
- CN101530824A CN101530824A CN 200910131301 CN200910131301A CN101530824A CN 101530824 A CN101530824 A CN 101530824A CN 200910131301 CN200910131301 CN 200910131301 CN 200910131301 A CN200910131301 A CN 200910131301A CN 101530824 A CN101530824 A CN 101530824A
- Authority
- CN
- China
- Prior art keywords
- coal
- product
- jigging
- gained
- cleaned
- 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.)
- Granted
Links
Images
Landscapes
- Combined Means For Separation Of Solids (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The invention discloses a coal dressing method and system of four-product jigging primary cleaning and secondary head coal small simplified heavy medium reelecting. The invention is a coal dressing method and system that selects the secondary head coal product through the four-product jigging technique and then reelects the secondary head coal with small simplify heavy medium separation technology. The adoption of the invention to select coal is characterized by less total investment, simpler system and lower operational expense, which can improve the stability of the system, reduce the power consumption, simplify the managing and maintaining work. The method can be easily realized with present technical merits, which is beneficial to be popularized in the middle and small coal washeries where the management level is low and if the method is used in oversize coal washeries, the cost for washing is lower.
Description
Affiliated technical field
The present invention relates to a kind of coal preparation method and technology, especially relate to coal preparation method and coal separation system that a kind of four-product jigging main separation, inferior cleaned coal small simplified heavy medium are selected again.
Background technology
At present, both at home and abroad the most frequently used coal preparation method of coal preparation plant has two kinds of coal jigging method and heavy media coal separation methods, wherein: the coal jigging method has small investment, running expense is low, treating capacity is big, advantages such as technology is simple, and equipment control is convenient, and that weak point is difficulty choosing and above coal sharpness of separation is low; And the heavy media coal separation method has the pluses and minuses opposite with the coal jigging method.Facts have proved for many years, but choosing of jigging commute and medium coal separation are suitable, heavily are situated between difficulty choosing and utmost point difficult separation coal are suitable for, and these two kinds of each have their own scope of applications of method do not have a kind of method can substitute another kind under any condition.In order to develop both advantages, overcome both deficiencies, in the past few years many experts and scholar have successively developed some jiggings and the combined coal-dressing method that heavily is situated between, contained two product jigging discharge refuses, (the middle coal+cleaned coal of publishing as publishing house of China Mining University in October, 2002 second impression) of " mineral dressing " book 262-269 page or leaf heavily is situated between and washes, and three products jigging master washes, middle coal heavily is situated between method such as washes again.From the density and the relation with contents curve map (as shown in Figure 1) of a certain difficult separation coal, if by existing two product jigging discharge refuses, (middle coal+cleaned coal) the washing method sorting again that heavily is situated between, the treating capacity that heavily is situated between reaches 88%.If by existing three products jigging master wash, middle coal heavily is situated between washing method sorting again, the treating capacity that heavily is situated between reaches 48%.There are the following problems for these methods: 1. heavily get involved and wash part to go into the amount of the washing system that greatly, heavily is situated between huge; 2. the big system of two covers is with depositing the gross investment height; 3. the big system of two covers is with operation, complexity; 4. cost of business operation height.Just because of these problems make that these good methods can not be applied preferably.This has become expert and scholar for many years always in effort, and never obtains something of fine solution.
Analyze from the principle of coal jigging method, coal jigging is that coal carries out sorting by density variation in the speed change current of vertical lift, this sorting is relevant with the granularity and the shape of coal, belong to a kind of coarse fuzzy sorting, the result is that the material within theoretical separa tion density δ ± 0.1 can not strict separate by proportion.
Density and relation with contents curve map (as shown in Figure 1) from a certain difficult separation coal, content within the theoretical separa tion density 1.41 ± 0.1 reaches 28%, if only this wherein not thin-graded that part of the utmost point take out the choosing that heavily is situated between again, heavily getting involved the amount of washing will be less than 20%, this will become many times reduce heavily to be situated between system scale.
Summary of the invention
The purpose of this invention is to provide a kind of elder generation and raw coal is divided into spoil, middle coal, inferior cleaned coal, four products of cleaned coal by four-product jigging technology, and then a coal preparation method that time cleaned coal selects with small simplified heavy medium sorting technology again.This method has gross investment still less, and system is simpler, and the advantage that cost of business operation is lower can reach the raising system reliability, reduces system power dissipation, the purpose of streamlining management and maintenance work.This method can realize under the prior art level easily, helps promoting the use of in the medium and small coal washery of the horizontal backward areas of operational administrative, uses the washing cost lower in super-huge coal washery.
Technical scheme of the present invention is summarized as follows:
The coal preparation method that a kind of four-product jigging main separation, inferior cleaned coal small simplified heavy medium select again, comprise existing three sections coal jigging methods and small simplified heavy medium coal preparation method, in three sections coal jigging methods, the middle product of coal of the 3rd section discharge of jigging machine is carried out online sorting again by small simplified heavy medium coal separation system.
The coal preparation method that four-product jigging main separation of the present invention, inferior cleaned coal small simplified heavy medium select is again wherein controlled the product quality of the 3rd section discharge of jigging machine, allows the product quality of this section discharge be to approach the inferior cleaned coal of separating density.
The coal preparation method that four-product jigging main separation of the present invention, inferior cleaned coal small simplified heavy medium select again, the quantity that wherein controls the product of the 3rd section discharge of jigging machine arrives minimum.
The coal preparation method that four-product jigging main separation of the present invention, inferior cleaned coal small simplified heavy medium select again, its middle-size and small-size dense media are simplified the coal separation system and are simplified separation system for the two product heavy medium cyclones of pressure are arranged.
It is that three products heavy medium cyclone is simplified separation system that the coal preparation method that four-product jigging main separation of the present invention, inferior cleaned coal small simplified heavy medium select again, its middle-size and small-size dense media are simplified the coal separation system.
The coal preparation method that four-product jigging main separation of the present invention, inferior cleaned coal small simplified heavy medium select again, its middle-size and small-size dense media are simplified the dense media simplification separation system that the coal separation system is other form.
Another object of the present invention provides the coal separation system that a kind of four-product jigging main separation, inferior cleaned coal small simplified heavy medium are selected again, comprises following process procedure:
A. raw coal is carried out the sorting of four-product jigging;
B. the middle coal II product of the 3rd section discharge of jigging machine, send into the sorting link that heavily is situated between;
C. after other products obtained therefrom cleaned coal, middle coal I and spoil dewater respectively, in coal and spoil product send into respectively in coal bunker and waste bin, cleaned coal enters next step;
D. the head coal product from step c is carried out primary dewatering and second dehydration, the gained sieve is top grade to be the piece head coal product, and sends into the cleaned coal storehouse; The sieve low-grades enter buffer barrel, send into the concentrated cyclone of cleaned coal mud with the cleaned coal dredge pump again and concentrate, and concentrate the gained overflow and enter the flotation link, concentrate the gained underflow and enter cleaned coal mud high frequency sieve;
E. cleaned coal mud high frequency sieve gained sieve is top grade is thin head coal product, and sends into the cleaned coal storehouse; Cleaned coal mud high frequency sieve gained sieve is gone to the bottom and is flow to into the flotation link;
F. the middle coal II from step b is carried out fragmentation and sends into the qualified medium bucket, the back is pumped into two products with qualified medium has the cyclone of pressure to carry out sorting;
G. counterweight Jie sorting products obtained therefrom cleaned coal, middle coal carry out a de-mediated respectively, and the sieve low-grades of described cleaned coal enter shunting, and the sieve low-grades of part shunting and middle coal enter the qualified medium bucket, wherein sieve the top grade next step that enters;
H. two kinds of products from step g are carried out secondary de-mediated, dehydration respectively, wherein the selected sieve of two kinds of products is top grade is respectively cleaned coal piece, middle coal cinder, and sends into cleaned coal storehouse and middle coal bunker respectively;
I. collect cleaned coal among the above-mentioned steps h and rare Jie of sieve low-grades of middle coal secondary de-mediated, and, carry out magnetic separation from the part shunting of step g;
J. magnetic separation gained medium enters the qualified medium bucket, and magnetic separation gained mine tailing is sent into middle coal slime bucket;
K. to the mine tailing in the middle coal slime bucket in step j, with in the coal medium pump send in coal slime concentrate cyclone and concentrate, concentrate the gained overflow and enter the flotation link, concentrate the gained underflow enter in coal slime high frequency sieve;
1. middle coal slime high frequency sieve gained sieve is top grade to be middle product of coal, and sends into middle coal bunker; Middle coal slime high frequency sieve gained sieve is gone to the bottom and is flow to into next step;
M. send into flotation device after overflow converges from underflow under the sieve of step 1 with from step k;
N. carry out flotation to the black water from step k and step m, and from the black water of steps d and step e, the gained flotation concentrate enters the concentrate pond, and the gained flotation tailing enters thickener;
O. to entering the flotation concentrate in the concentrate pond among the above-mentioned steps n, deliver in the clean coal pressur filter with the concentrate feed pump and dewater, the gained filter cake is the fine cleaned coal product, and sends into the cleaned coal storehouse; Gained filtrate enters circulating water pool;
P. to from the black water that enters thickener among the step n, concentrate in thickener, gained overflows to circulating water pool, and the gained underflow is delivered in the tail coal filter press with the mine tailing feed pump and dewatered, and the gained filter cake is a product from failing, and sends into tailing bin; Gained filtrate enters circulating water pool;
Q. to from step.Filtrate and filtrate and the overflow of step p, in circulating water pool, store, use for systemic circulation with water circulating pump;
R. circulating water pool is added the water of disappearance;
S. the qualified medium bucket is added the medium of disappearance.
The coal separation system that four-product jigging main separation of the present invention, inferior cleaned coal small simplified heavy medium select again, wherein control the product quality of the 3rd section discharge of jigging machine among the above-mentioned steps b, allow the product quality of this section discharge be to approach the inferior cleaned coal of separating density, and the product quantity of the 3rd section discharge of control jigging machine is to minimum.
The coal separation system that four-product jigging main separation of the present invention, inferior cleaned coal small simplified heavy medium select again, wherein to cleaned coal second dehydration, classification, and products obtained therefrom also comprises the steps: behind the clean coal slime dewatering
Gained smalls is wherein carried out centrifugal dehydration;
Fine cleaned coal sieves top and is divided into the fine cleaned coal product after centrifugal dehydration, send into the cleaned coal storehouse, and the lower part of screen is divided into black water and enters buffer barrel, carries out flotation.
The present invention compares with the coal separation system with dense media combined coal-dressing method with the jigging of prior art, has fully shown following advantage:
1. heavily Jie's scale reduces 2-4 doubly, has reduced the system that heavily is situated between to greatest extent;
2. brought into play the advantage of jigging to greatest extent;
3. gross investment more economizes, and system is simpler, and cost of business operation is lower;
4. improve system reliability, reduced system power dissipation, streamlining management and maintenance work;
5. this method and technology can realize under the prior art level conditions easily;
6. be more conducive in the medium and small coal washery of the horizontal backward areas of operational administrative, promote the use of;
The washing cost can be lower when 7. using in super-huge coal washery.
In sum, advantage of the present invention is: system's investment reduces, and system reliability improves, and system consumption power reduces, it is further simple to administer and maintain work, coal preparation method and coal separation system that to be the jigging more simplified in a kind of present coal separation industry unite with dense media.
Description of drawings
Fig. 1 represents a kind of density and relation with contents curve synoptic diagram of difficult separation coal
Fig. 2 represents the coal separation system process schematic diagram that a kind of four-product jigging main separation, inferior cleaned coal small simplified heavy medium select again
The specific embodiment
Technical method of the present invention is summarized as follows:
The coal preparation method that a kind of four-product jigging main separation, inferior cleaned coal small simplified heavy medium select again, comprise existing three sections coal jigging methods and small simplified heavy medium coal preparation method, in three sections coal jigging methods, the middle product of coal of the 3rd section discharge of jigging machine is carried out online sorting again by small simplified heavy medium coal separation system.
The coal preparation method that four-product jigging main separation of the present invention, inferior cleaned coal small simplified heavy medium select is again wherein controlled the product quality of the 3rd section discharge of jigging machine, allows the product quality of this section discharge for relatively approaching the inferior cleaned coal of separating density.
The coal preparation method that four-product jigging main separation of the present invention, inferior cleaned coal small simplified heavy medium select again, the quantity that wherein controls the product of the 3rd section discharge of jigging machine arrives minimum.
The coal preparation method that four-product jigging main separation of the present invention, inferior cleaned coal small simplified heavy medium select again, its middle-size and small-size dense media are simplified the coal separation system and are simplified separation system for the two product heavy medium cyclones of pressure are arranged.
It is that three products heavy medium cyclone is simplified separation system that the coal preparation method that four-product jigging main separation of the present invention, inferior cleaned coal small simplified heavy medium select again, its middle-size and small-size dense media are simplified the coal separation system.
The coal preparation method that four-product jigging main separation of the present invention, inferior cleaned coal small simplified heavy medium select again, its middle-size and small-size dense media are simplified the dense media simplification separation system that the coal separation system is other form.
Below in conjunction with accompanying drawing coal separation system process of the present invention is done as detailed below:
Fig. 2 is the coal separation system process figure that a kind of four-product jigging main separation, inferior cleaned coal small simplified heavy medium select again, band water running earlier in the jigging system, heavily be with the qualified medium operation earlier in Jie system, after the operation of two systems is normal, raw coal feeds three sections jigging machines 2 through coal supply link 1, and its technological process comprises the steps:
A. after raw coal enters three sections jigging machines 2, sub-elect cleaned coal, middle coal I, middle coal II, four kinds of products of spoil by this jigging machine;
B. the middle coal II product of the 3rd section discharge of three sections jigging machines 2, send into the sorting link 35 that heavily is situated between;
C. other products obtained therefrom cleaned coal, middle coal I and spoil dewater respectively, coal bunker 19 and waste bin 18 during coal and spoil product are sent into respectively in the back handle, and cleaned coal enters next step;
D. the head coal product from step c is entered camber sieve 3 successively and straight line shaker 4 carries out primary dewatering and second dehydration, the gained sieve is top grade to be the piece head coal product, and sends into cleaned coal storehouse 20; The sieve low-grades enter buffer barrel 5, send into the concentrated cyclone 7 of cleaned coal mud with cleaned coal dredge pump 6 again and concentrate, and concentrate to such an extent that overflow enters flotation link 9, concentrate the gained underflow and enter cleaned coal mud high frequency sieve 8;
E. cleaned coal mud high frequency sieves that 8 gained sieves is top grade to be thin head coal product, and sends into cleaned coal storehouse 20; Cleaned coal mud high frequency sieves 8 gained sieves and goes to the bottom and flow to into flotation link 9;
F. the middle coal II from step b is carried out fragmentation 35 and sends into qualified medium bucket 33, sending into two products with qualification medium pump 34 has the cyclone 22 of pressure to carry out sorting.
G. counterweight Jie sorting gained head coal product carries out a de-mediated 23, product of coal carries out a de-mediated 24 in counterweight Jie sorting gained, the sieve low-grades of described cleaned coal enter shunting 26, and the sieve low-grades of part shunting and middle coal enter qualified medium bucket 33, wherein sieve the top grade next step that enters;
H. the head coal product from step g is carried out secondary de-mediated, dehydration 25, wherein selected sieve is top grade to be the cleaned coal piece, and sends into cleaned coal storehouse 20; Middle product of coal from step g is carried out secondary de-mediated, dehydration 27, and wherein selected sieve is top grade to be middle coal cinder, and coal bunker 19 in sending into;
I. collect cleaned coal among the above-mentioned steps h and rare Jie of sieve low-grades of middle coal secondary de-mediated, and, carry out magnetic separation 28 from the part shunting of step g;
J. magnetic separation 28 gained media enter qualified medium bucket 33, and magnetic separation 28 gained mine tailings are sent into middle coal slime bucket 29;
K. to from the mine tailing in the middle coal slime bucket 29 among the step j, with in coal medium pump 30 send in coal slime concentrate cyclone 31 and concentrate, concentrate the gained overflow and enter flotation link 9, concentrate the gained underflow enter in coal slime high frequency sieve 32;
1. it is middle product of coal that middle coal slime high frequency sieves 32 gained sieve top grade, and coal bunker 19 in sending into; Middle coal slime high frequency sieve gained sieve is gone to the bottom and is flow to into next step;
M. send into flotation device 9 after overflow converges from underflow under the sieve of step 1 with from step k;
N. carry out flotation 9 to the black water from step k and step m, and from the black water of steps d and step e, the gained flotation concentrate enters concentrate pond 10, and the gained flotation tailing enters thickener 13;
O. to entering the flotation concentrate in the concentrate pond 10 among the above-mentioned steps n, deliver in the clean coal pressur filter 12 with concentrate feed pump 11 and dewater, the gained filter cake is the fine cleaned coal product, and sends into cleaned coal storehouse 20; Gained filtrate enters circulating water pool 16;
P. to from the black water that enters thickener 13 among the step n, concentrate in thickener, gained overflows to circulating water pool 16, and the gained underflow is delivered in the refuse filter press 15 with mine tailing feed pump 14 and dewatered, the gained filter cake is a product from failing, and sends into tailing bin 21; Gained filtrate enters circulating water pool 16;
Q. to from the filtrate of step o and filtrate and the overflow of step p, in circulating water pool 16, store, use for systemic circulation with water circulating pump 17 during use;
R. circulating water pool 16 is added the water of disappearance;
S. qualified medium bucket 33 is added the medium of disappearance.
In the above-mentioned processing step, and the conveying that does not indicate on the figure, recirculated water, moisturizing, detection, control, system such as electric be routine techniques, no longer narration here.
Based on same principle and method, the present invention can be in above-mentioned processing step b, the product quality and the quantity of control jigging machine the 3rd section discharge allow the product quality of this section discharge for relatively approaching the inferior cleaned coal of separating density, make the product quantity of the 3rd section discharge of jigging machine minimum.Do like this and can reach goal of the invention equally, and can bring into play the function of jigging machine to a greater extent, reduce the scale and the treating capacity of the system that heavily is situated between to greatest extent.
Based on same principle and method, the present invention can increase cleaned coal second dehydration, classification, and gained smalls product carry out the centrifugal dehydration step behind the clean coal slime dewatering in above-mentioned processing step:
Fine cleaned coal sieves top and is divided into the fine cleaned coal product after centrifugal dehydration, send into the cleaned coal storehouse, and the lower part of screen is divided into black water and enters buffer barrel, carries out flotation; Do like this and can reach goal of the invention equally, and can further reduce head coal product moisture content.
Based on same principle and method, the present invention can increase buffering, pumping, preprocessor link before flotation device in above-mentioned processing step.Do like this and can reach goal of the invention equally.Described buffering, pumping, preprocessor link are routine techniques, here no longer narration.
In sum, above embodiment is to be that the basis is described with a kind of typical process flow shown in Figure 2, based on same principle and method, the present invention also can be incorporated in the flow process by the principle in the technology shown in Figure 2 and the method small simplified heavy medium sorting process with other pattern, realizes the coal preparation technique flow process that the four-product jigging main separation of corresponding form, inferior cleaned coal small simplified heavy medium select again equally.
As mentioned above, the coal preparation method and the technology that adopt a kind of four-product jigging main separation of the present invention, inferior cleaned coal small simplified heavy medium to select again, can obtain the investment of minimizing system, improve system reliability, reduce system consumption power, improving the effect of the work that administers and maintains, is jigging and dense media combined coal-dressing method and the technology of more simplifying in a kind of present coal separation industry.
The invention discloses coal preparation method and technology that a kind of four-product jigging main separation, inferior cleaned coal small simplified heavy medium are selected again; though more than enumerated less embodiment; but for those of ordinary skill in the art; to some remodeling that the present invention did, improvement, replacement etc.; perhaps above-mentioned embodiment is done any combination and is changed, and all drops within protection scope of the present invention.
Claims (10)
1, the coal preparation method that selects again of a kind of four-product jigging main separation, inferior cleaned coal small simplified heavy medium, comprise existing three sections coal jigging methods and small simplified heavy medium coal preparation method, it is characterized in that: in three sections coal jigging methods, the middle product of coal of the 3rd section discharge of jigging machine is carried out online sorting again by small simplified heavy medium coal separation system.
2, realize the coal preparation method that the described a kind of four-product jigging main separation of claim 1, inferior cleaned coal small simplified heavy medium select again, it is characterized in that: the product quality of control jigging machine the 3rd section discharge allows the product quality of this section discharge be to approach the inferior cleaned coal of separating density.
3, realize the coal preparation method that the described a kind of four-product jigging main separation of claim 1, inferior cleaned coal small simplified heavy medium select again, it is characterized in that: the quantity of the product of the 3rd section discharge of control jigging machine is to minimum.
4, realize the coal preparation method that the described a kind of four-product jigging main separation of claim 1, inferior cleaned coal small simplified heavy medium select again, it is characterized in that: small-sized dense media is simplified the coal separation system and is simplified separation system for the two product heavy medium cyclones of pressure are arranged.
5, realize the coal preparation method that the described a kind of four-product jigging main separation of claim 1, inferior cleaned coal small simplified heavy medium select again, it is characterized in that: it is that three products heavy medium cyclone is simplified separation system that small-sized dense media is simplified the coal separation system.
6, realize the coal preparation method that the described a kind of four-product jigging main separation of claim 1, inferior cleaned coal small simplified heavy medium select again, it is characterized in that: small-sized dense media is simplified the coal separation system and is simplified separation system for the dense media of other form.
7, realize the coal separation system that the described a kind of four-product jigging main separation of claim 1, inferior cleaned coal small simplified heavy medium select again, it is characterized in that comprising following process procedure:
A. raw coal is carried out the sorting of four-product jigging;
B. the middle coal II product of the 3rd section discharge of jigging machine, send into the sorting link that heavily is situated between;
C. after other products obtained therefrom cleaned coal, middle coal I and spoil dewater respectively, in coal and spoil product send into respectively in coal bunker and waste bin, cleaned coal enters next step;
D. the head coal product from step c is carried out primary dewatering and second dehydration, the gained sieve is top grade to be the piece head coal product, and sends into the cleaned coal storehouse; The sieve low-grades enter buffer barrel, send into the concentrated cyclone of cleaned coal mud with the cleaned coal dredge pump again and concentrate, and concentrate the gained overflow and enter the flotation link, concentrate the gained underflow and enter cleaned coal mud high frequency sieve;
E. cleaned coal mud high frequency sieve gained sieve is top grade is thin head coal product, and sends into the cleaned coal storehouse; Cleaned coal mud high frequency sieve gained sieve is gone to the bottom and is flow to into the flotation link;
F. the middle coal II from step b is carried out fragmentation and sends into the qualified medium bucket, the back is pumped into two products with qualified medium has the cyclone of pressure to carry out sorting;
G. counterweight Jie sorting products obtained therefrom cleaned coal, middle coal carry out a de-mediated respectively, and the sieve low-grades of described cleaned coal enter shunting, and the sieve low-grades of part shunting and middle coal enter the qualified medium bucket, wherein sieve the top grade next step that enters;
H. two kinds of products from step g are carried out secondary de-mediated, dehydration respectively, wherein the selected sieve of two kinds of products is top grade is respectively cleaned coal piece, middle coal cinder, and sends into cleaned coal storehouse and middle coal bunker respectively;
I. collect cleaned coal among the above-mentioned steps h and rare Jie of sieve low-grades of middle coal secondary de-mediated, and, carry out magnetic separation from the part shunting of step g;
J. magnetic separation gained medium enters the qualified medium bucket, and magnetic separation gained mine tailing is sent into middle coal slime bucket;
K. to from the mine tailing in the middle coal slime bucket among the step j, with in the coal medium pump send in coal slime concentrate cyclone and concentrate, concentrate the gained overflow and enter the flotation link, concentrate the gained underflow enter in coal slime high frequency sieve;
L. middle coal slime high frequency sieve gained sieve is top grade to be the detail product of coal, and sends into middle coal bunker; Middle coal slime high frequency sieve gained sieve is gone to the bottom and is flow to into next step;
M. send into flotation device after overflow converges from underflow under the sieve of step 1 with from step k;
N. carry out flotation to the black water from step k and step m, and from the black water of steps d and step e, the gained flotation concentrate enters the concentrate pond, and the gained flotation tailing enters thickener;
O. to entering the flotation concentrate in the concentrate pond among the above-mentioned steps n, deliver in the clean coal pressur filter with the concentrate feed pump and dewater, the gained filter cake is the fine cleaned coal product, and sends into the cleaned coal storehouse; Gained filtrate enters circulating water pool;
P. to from the black water that enters thickener among the step n, concentrate in thickener, the gained overflow is discharged to circulating water pool, and the gained underflow is delivered in the refuse filter press with the mine tailing feed pump and dewatered, and the gained filter cake is a product from failing, and sends into tailing bin; Gained filtrate enters circulating water pool;
Q. to from step.Filtrate and filtrate and the overflow of step p, in circulating water pool, store, use for systemic circulation with water circulating pump;
R. circulating water pool is added the water of disappearance;
S. the qualified medium bucket is added the medium of disappearance.
8, realize the coal separation system that the described a kind of four-product jigging main separation of claim 7, inferior cleaned coal small simplified heavy medium select again, it is characterized in that: the product quality of control jigging machine the 3rd section discharge among the above-mentioned steps b wherein allows the product quality of this section discharge approach the inferior cleaned coal of separating density.
9, realize the coal separation system that the described a kind of four-product jigging main separation of claim 7, inferior cleaned coal small simplified heavy medium select again, it is characterized in that: wherein the product quantity of the 3rd section discharge of control jigging machine arrives minimum among the above-mentioned steps b.
10, realize the coal separation system that the described a kind of four-product jigging main separation of claim 7, inferior cleaned coal small simplified heavy medium select again, it is characterized in that: to cleaned coal second dehydration, classification, and products obtained therefrom also comprises the steps: behind the clean coal slime dewatering
A, gained smalls is wherein carried out centrifugal dehydration;
B, fine cleaned coal sieve top and are divided into the fine cleaned coal product after centrifugal dehydration, send into the cleaned coal storehouse, and the lower part of screen is divided into black water and enters buffer barrel, carries out flotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910131301 CN101530824B (en) | 2009-04-14 | 2009-04-14 | A coal dressing method and system of four-product jigging primary cleaning, secondary head coal small simplified heavy medium reelecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910131301 CN101530824B (en) | 2009-04-14 | 2009-04-14 | A coal dressing method and system of four-product jigging primary cleaning, secondary head coal small simplified heavy medium reelecting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101530824A true CN101530824A (en) | 2009-09-16 |
| CN101530824B CN101530824B (en) | 2013-10-16 |
Family
ID=41101809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910131301 Active CN101530824B (en) | 2009-04-14 | 2009-04-14 | A coal dressing method and system of four-product jigging primary cleaning, secondary head coal small simplified heavy medium reelecting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101530824B (en) |
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059174A (en) * | 2010-12-19 | 2011-05-18 | 烟台金华选煤工程有限公司 | Cleaned coal dehydration process and equipment combination for realizing same |
| CN102179288A (en) * | 2010-12-21 | 2011-09-14 | 王万明 | Coal-reselecting process for heavy media coal separation |
| CN102357405A (en) * | 2011-08-21 | 2012-02-22 | 太原艾柯夫选煤技术有限公司 | Middling coal crushing, recleaning and quality improving method |
| CN102794227A (en) * | 2012-08-22 | 2012-11-28 | 山西晋城无烟煤矿业集团有限责任公司 | Method and device for recovering block gangue screen undersize medium |
| CN102896036A (en) * | 2012-09-24 | 2013-01-30 | 刘立文 | Three-section four-product heavy media coal preparation process |
| CN103170405A (en) * | 2013-02-28 | 2013-06-26 | 宝钢集团新疆八一钢铁有限公司 | Coal separation method for advanced dense medium cyclone technology |
| CN103203280A (en) * | 2012-06-20 | 2013-07-17 | 冯云 | Dense-medium preparation technology for optimizing coal slime |
| CN103350027A (en) * | 2013-08-06 | 2013-10-16 | 煤炭科学研究总院唐山研究院 | Classified-desliming pressurized-feeding three-product dense medium cyclone coal preparation process |
| CN103394422A (en) * | 2013-07-31 | 2013-11-20 | 神华集团有限责任公司 | Method for separating coal and rock components from raw coal |
| CN105016091A (en) * | 2015-05-29 | 2015-11-04 | 内蒙古上海庙矿业有限责任公司 | Coal sale collecting/distributing device |
| CN105057218A (en) * | 2015-07-16 | 2015-11-18 | 陕西蟠龙实业有限公司 | Novel dry coal preparation system and method |
| CN105665124A (en) * | 2016-04-13 | 2016-06-15 | 中国矿业大学 | High-intergrowth, high-ash and high-sulfur coal sorting and slurrying integrated process |
| CN105694943A (en) * | 2016-01-27 | 2016-06-22 | 中科合成油技术有限公司 | Joint-converted polygeneration method for multiple coal types |
| CN105750075A (en) * | 2014-03-10 | 2016-07-13 | 衢州市易凡设计有限公司 | Device for washing separation of high-ash, high-clay and high-gangue coal |
| CN105944823A (en) * | 2014-03-10 | 2016-09-21 | 衢州市易凡设计有限公司 | Equipment for washing high-ash, high-mud and high-gangue stone coal |
| CN106179719A (en) * | 2016-05-14 | 2016-12-07 | 北京浩沃特矿业技术有限公司 | Container-combination formula module dense-medium separation system |
| CN106370555A (en) * | 2016-10-10 | 2017-02-01 | 山西汾西矿业（集团）有限责任公司 | Densitometer device for coal dressing system |
| CN107020201A (en) * | 2017-06-14 | 2017-08-08 | 淮南矿业(集团)有限责任公司 | A kind of thickener underflow coarse slime recovery system |
| CN108273655A (en) * | 2018-01-12 | 2018-07-13 | 华北科技学院 | A kind of coal jigging system and method |
| CN108296009A (en) * | 2018-01-29 | 2018-07-20 | 内蒙古伊泰煤炭股份有限公司 | Coal deep working method and coal processing method |
| CN109201314A (en) * | 2018-09-11 | 2019-01-15 | 乌拉特中旗毅腾矿业有限责任公司 | A kind of middle coal clean utilization production technology |
| CN109701729A (en) * | 2019-01-14 | 2019-05-03 | 乌拉特中旗毅腾矿业有限责任公司 | A kind of middle coal clean utilization production technology |
| CN109718944A (en) * | 2019-03-08 | 2019-05-07 | 中国矿业大学 | A kind of aqueous medium underground coal preparation technique |
| CN109794349A (en) * | 2019-03-08 | 2019-05-24 | 中国矿业大学 | A kind of underground coal preparation technique |
| CN114887758A (en) * | 2022-04-26 | 2022-08-12 | 鞍钢集团矿业有限公司 | Magnetic iron ore stage grinding and selecting process with sand setting and tailing throwing functions |
-
2009
- 2009-04-14 CN CN 200910131301 patent/CN101530824B/en active Active
Cited By (36)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059174B (en) * | 2010-12-19 | 2016-01-20 | 烟台金华选煤工程有限公司 | A kind of cleaned coal dehydration and realize this technique equipment combination |
| CN102059174A (en) * | 2010-12-19 | 2011-05-18 | 烟台金华选煤工程有限公司 | Cleaned coal dehydration process and equipment combination for realizing same |
| CN102179288A (en) * | 2010-12-21 | 2011-09-14 | 王万明 | Coal-reselecting process for heavy media coal separation |
| CN102357405A (en) * | 2011-08-21 | 2012-02-22 | 太原艾柯夫选煤技术有限公司 | Middling coal crushing, recleaning and quality improving method |
| CN103203280A (en) * | 2012-06-20 | 2013-07-17 | 冯云 | Dense-medium preparation technology for optimizing coal slime |
| CN103203280B (en) * | 2012-06-20 | 2015-06-03 | 安徽恒源煤电股份有限公司 | Dense-medium preparation technology for optimizing coal slime |
| CN102794227A (en) * | 2012-08-22 | 2012-11-28 | 山西晋城无烟煤矿业集团有限责任公司 | Method and device for recovering block gangue screen undersize medium |
| CN102896036B (en) * | 2012-09-24 | 2014-01-01 | 刘立文 | Three-section four-product heavy media coal preparation process |
| CN102896036A (en) * | 2012-09-24 | 2013-01-30 | 刘立文 | Three-section four-product heavy media coal preparation process |
| CN103170405A (en) * | 2013-02-28 | 2013-06-26 | 宝钢集团新疆八一钢铁有限公司 | Coal separation method for advanced dense medium cyclone technology |
| CN103170405B (en) * | 2013-02-28 | 2015-07-08 | 宝钢集团新疆八一钢铁有限公司 | Coal separation method for advanced dense medium cyclone technology |
| CN103394422A (en) * | 2013-07-31 | 2013-11-20 | 神华集团有限责任公司 | Method for separating coal and rock components from raw coal |
| CN103350027A (en) * | 2013-08-06 | 2013-10-16 | 煤炭科学研究总院唐山研究院 | Classified-desliming pressurized-feeding three-product dense medium cyclone coal preparation process |
| CN105944823A (en) * | 2014-03-10 | 2016-09-21 | 衢州市易凡设计有限公司 | Equipment for washing high-ash, high-mud and high-gangue stone coal |
| CN105750075A (en) * | 2014-03-10 | 2016-07-13 | 衢州市易凡设计有限公司 | Device for washing separation of high-ash, high-clay and high-gangue coal |
| CN105016091B (en) * | 2015-05-29 | 2018-08-17 | 内蒙古上海庙矿业有限责任公司 | Sell terminal apparatus to a kind of coal |
| CN105016091A (en) * | 2015-05-29 | 2015-11-04 | 内蒙古上海庙矿业有限责任公司 | Coal sale collecting/distributing device |
| CN105057218A (en) * | 2015-07-16 | 2015-11-18 | 陕西蟠龙实业有限公司 | Novel dry coal preparation system and method |
| CN105694943A (en) * | 2016-01-27 | 2016-06-22 | 中科合成油技术有限公司 | Joint-converted polygeneration method for multiple coal types |
| CN105665124B (en) * | 2016-04-13 | 2019-05-28 | 中国矿业大学 | High intergrowth high ash sulphur coal sorts slurrying integral process |
| CN105665124A (en) * | 2016-04-13 | 2016-06-15 | 中国矿业大学 | High-intergrowth, high-ash and high-sulfur coal sorting and slurrying integrated process |
| CN106179719A (en) * | 2016-05-14 | 2016-12-07 | 北京浩沃特矿业技术有限公司 | Container-combination formula module dense-medium separation system |
| CN106179719B (en) * | 2016-05-14 | 2019-06-21 | 北京浩沃特矿业技术有限公司 | Container-combination formula module dense-medium separation system |
| CN106370555A (en) * | 2016-10-10 | 2017-02-01 | 山西汾西矿业（集团）有限责任公司 | Densitometer device for coal dressing system |
| CN107020201A (en) * | 2017-06-14 | 2017-08-08 | 淮南矿业(集团)有限责任公司 | A kind of thickener underflow coarse slime recovery system |
| CN107020201B (en) * | 2017-06-14 | 2023-07-25 | 淮南矿业(集团)有限责任公司 | Thickener underflow coarse slime recovery system |
| CN108273655A (en) * | 2018-01-12 | 2018-07-13 | 华北科技学院 | A kind of coal jigging system and method |
| CN108296009A (en) * | 2018-01-29 | 2018-07-20 | 内蒙古伊泰煤炭股份有限公司 | Coal deep working method and coal processing method |
| CN109201314B (en) * | 2018-09-11 | 2020-12-01 | 乌拉特中旗毅腾矿业有限责任公司 | Clean utilization production process for middlings |
| CN109201314A (en) * | 2018-09-11 | 2019-01-15 | 乌拉特中旗毅腾矿业有限责任公司 | A kind of middle coal clean utilization production technology |
| CN109701729B (en) * | 2019-01-14 | 2020-11-17 | 乌拉特中旗毅腾矿业有限责任公司 | Clean utilization production process for middlings |
| CN109701729A (en) * | 2019-01-14 | 2019-05-03 | 乌拉特中旗毅腾矿业有限责任公司 | A kind of middle coal clean utilization production technology |
| CN109794349A (en) * | 2019-03-08 | 2019-05-24 | 中国矿业大学 | A kind of underground coal preparation technique |
| CN109718944A (en) * | 2019-03-08 | 2019-05-07 | 中国矿业大学 | A kind of aqueous medium underground coal preparation technique |
| CN114887758A (en) * | 2022-04-26 | 2022-08-12 | 鞍钢集团矿业有限公司 | Magnetic iron ore stage grinding and selecting process with sand setting and tailing throwing functions |
| CN114887758B (en) * | 2022-04-26 | 2023-10-20 | 鞍钢集团矿业有限公司 | Stage grinding and selecting process for magnetite ore with sand setting and tailing discarding functions |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101530824B (en) | 2013-10-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101530824B (en) | A coal dressing method and system of four-product jigging primary cleaning, secondary head coal small simplified heavy medium reelecting | |
| CN109794349B (en) | Underground coal dressing process | |
| CN1186126C (en) | Process for heavy media separation of coarse coal slurry | |
| CN105597915B (en) | The wide dual Jie's whole coarse slime separating process of grade can be achieved in one kind | |
| CN103240168B (en) | Grading separation and dehydration method for high-ash difficult-separation coal slime | |
| CN103143432B (en) | Efficient crushing and three-section type screening method of coking coal gravity middings | |
| CN107008565A (en) | A kind of thermal coal deep screening and dense medium separation technique | |
| CN102728455B (en) | Combined separation process for gravity concentration and flotation of difficult separation coal slime with high intermediate density material content | |
| CN104084293B (en) | Dense medium coarse slime sorting device and sorting process | |
| CN106179717A (en) | A kind of full level of thermal coal is selected in simplified heavy medium sorting process | |
| CN105289985A (en) | Coal full-size dry separation cleaning process and system | |
| CN102847606A (en) | Coarse slime separation process | |
| CN101011679B (en) | Simplified coal slurry dense-medium coal separation process | |
| CN205110130U (en) | Clean system is selected separately to whole grain level dry process of coal | |
| CN105080701A (en) | Separation method for roughing slime through teetered bed separator (TBS) and concentrating coarse slime difficult to separate through slime dense medium cyclone | |
| CN108672032A (en) | A kind of drum-type cash coal separator | |
| CN101185912A (en) | Torbanite washbox, coal separation system and coal separation method thereof | |
| CN107008566B (en) | A kind of steam coal separation technique | |
| CN103372495B (en) | A kind of separation of coarse slime system and method for separating | |
| CN110170370B (en) | System and process for reducing lower limit of gravity separation granularity of dense medium coal preparation plant | |
| CN110052326B (en) | System and method for purifying and recycling refined coal slime | |
| CN113560033B (en) | Intelligent coal powder removal washing and selecting system and method | |
| CN104436854A (en) | Slime water serial treatment system and slime water serial treatment process | |
| CN109821648B (en) | Re-selection system of medium coal pressure-free three-product dense medium cyclone of jigging | |
| RU141736U1 (en) | COAL PRODUCT LINE |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 100083, room 3, building 16, 402 Qinghua East Road, Beijing, Haidian District Applicant after: Jinyitong Science and Technology (Beijing) Co., Ltd. Address before: 100083, room 3, building 16, 204 Qinghua East Road, Beijing, Haidian District Applicant before: Jinyitong Science and Technology (Beijing) Co., Ltd. |
|
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 100083, room 3, building 16, 402 Qinghua East Road, Beijing, Haidian District Applicant after: Jinyitong Technology (Beijing) Co.,Ltd. Address before: 100083, room 3, building 16, 402 Qinghua East Road, Beijing, Haidian District Applicant before: Jinyitong Science and Technology (Beijing) Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |