CN206965903U - It is a kind of can realize in the heavy medium cyclone that selects again of coal - Google Patents

It is a kind of can realize in the heavy medium cyclone that selects again of coal Download PDF

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Publication number
CN206965903U
CN206965903U CN201720950915.8U CN201720950915U CN206965903U CN 206965903 U CN206965903 U CN 206965903U CN 201720950915 U CN201720950915 U CN 201720950915U CN 206965903 U CN206965903 U CN 206965903U
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China
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cyclone
coal
select
selects
main
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CN201720950915.8U
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申克忠
曹辉
赵龙
王祥震
冯建楠
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TANGSHAN RESEARCH INSTITUTE OF CHINA COAL TECHNOLOGY & ENGINEERING GROUP
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TANGSHAN RESEARCH INSTITUTE OF CHINA COAL TECHNOLOGY & ENGINEERING GROUP
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Abstract

It is a kind of can realize in the heavy medium cyclone that selects again of coal, belong to mine cleaning unit technical field, selected again for coal in being completed using heavy medium cyclone.Its technical scheme is:Cyclone overflow pipe top is selected tangentially to be open the second segment of heavy medium cyclone is main, middle coal selects cyclone to select cyclone overflow pipe top by the way that two or three sections of cyclone connecting reducing pipes and second segment are main tangentially opening is connected again, and middle coal selects the both ends of cyclone to have middle coal to select cyclone underflow opening and middle coal to select cyclone overflow pipe again again respectively again;Select to set up moisturizing on cyclone or mend to be situated between again in middle coal simultaneously and manage, select cyclone normally to sort required pressure again with coal in regulation.The utility model is simple in construction, easy to use, separating effect is good, existing middle coal can be substituted and select process procedure again, coal selects again in realization, solves the problems, such as the middle ribbing essence in three products heavy medium cyclone assorting room, reduce production cost, the economic benefit of coal preparation plant is improved, reaches maximally utilizing for resource.

Description

It is a kind of can realize in the heavy medium cyclone that selects again of coal
Technical field
The utility model is related to it is a kind of can realize in coal select the heavy medium cyclone of purpose again, belong to mine cleaning unit Technical field.
Background technology
Coal Cleaning by Dense Medium Cyclone have sharpness of separation is high, grading principle it is simple it is definite, easily realize automation, output and throwing Enter than the advantages that high, the efficiency of separation is high, simple in construction, wear-proof technique is ripe.Particularly three products heavy medium cyclone can profit The sorting of three kinds of products is realized with single density system.Compared with other screening installations, three products heavy medium cyclone is sorting Difficult separation coal and the optimal selection of extremely difficult coal separation, therefore be used widely in coal preparation plant, especially Oversized Coking Coal Cleaning Plant.It is near several Year also faces some skills with the intensification of coal mining depth and the high speed development of mechanical coal mining technology, coal preparation Art challenge, while the requirement more and more higher of the presence of tramp and user to head coal product quality in assorting room, three products During heavy medium cyclone is inevitably present in actual application the problem of coal tong band cleaned coal, this reduces cleaned coal Yield, cause the waste of resource.Cleaned coal is the core of coal preparation plant's quality management, therefore, reduces three products heavy medium cyclone Cleaned coal loss in middle coal, it is the main path for improving coal preparation plant's economic benefit to realize that clean coal recovery maximizes.
Some researchs are have also been made in order to solve this problem both at home and abroad at present, can substantially be divided into following several measures:
(1)Reduce tramp content and slime content.
(2)Jie's section is closed in increase under screen, keeps suitable shunt volume to reduce distribution error.
(3)Adjusting process parameter and main select cyclone device parameter.
(4)The selected amount of raw coal is controlled, while addition pre-wets pipe on funnel is entered, and raw coal is fully scattered after soaking, To improve separating effect.
(5)Newly increase a set of middle coal and select system etc. again.
These technical methods serve one in the production application of coal preparation plant to coal tong band cleaned coal in solving the problems, such as Fixed effect, but optional equipment improves the cost of equipment to coal again in increasing, and does not give full play to the effect of heavy medium cyclone, Also improved space.
Utility model content
Technical problem to be solved in the utility model be to provide it is a kind of can realize in the heavy medium cyclone that selects again of coal, This heavy medium cyclone can solve the middle ribbing essence generally occurred in current three products heavy medium cyclone assorting room Problem, substitute existing middle coal and select process procedure again, the purpose that coal selects again in realization, reduce production cost, improve coal preparation plant Economic benefit, reach maximally utilizing for resource.
Solve above-mentioned technical problem technical scheme be:
It is a kind of can realize in the heavy medium cyclone that selects again of coal, it includes, and first paragraph is main to select the main choosing of cyclone, second segment Cyclone, the main both ends for selecting cyclone of first paragraph have raw coal feeding mouth, first paragraph are main to select cyclone to enter be situated between pipe and first paragraph respectively Main to select cyclone overfall, the main both ends for selecting cyclone of second segment have second segment is main to select cyclone underflow opening and second segment master respectively Select cyclone overflow pipe, first paragraph is main to select cyclone and second segment is main selects cyclone to be connected by one or two sections of cyclone connecting reducing pipes Connecing, its improvements is that it adds middle coal and selects cyclone again, and second segment is main to select cyclone overflow pipe top to be tangentially open, in Coal selects cyclone to select cyclone overflow pipe top to be tangentially open phase by the way that two or three sections of cyclone connecting reducing pipes and second segment are main again Connection, middle coal select the both ends of cyclone to have middle coal to select cyclone underflow opening and middle coal to select cyclone overflow pipe again again respectively again.
It is above-mentioned can realize in the heavy medium cyclone that selects again of coal, the middle coal selects again there is also mounted middle coal again on cyclone Cyclone is selected to mend Jie or filling pipe, middle coal selects cyclone to mend Jie or filling pipe and selects cyclone cylindrical section routine again installed in middle coal again At the specular of feeding mouth, middle coal selects cyclone benefit Jie or filling pipe to select the eddy flow direction of cyclone in the same direction again with middle coal again.
The beneficial effects of the utility model are:
The utility model selects cyclone overflow pipe last on the basis of existing three products heavy medium cyclone, second segment is main The tangential opening in end, middle coal select cyclone and second segment are main to select cyclone overflow pipe top to be tangentially open to be connected again, and middle coal passes through Connecting tube, which enters in the 3rd section of cyclone, to be sorted, and this structure can be made full use of more than the main eddy flow for selecting cyclone of second segment Press and select the sorting of cyclone to provide power again for middle coal;Select to set up moisturizing on cyclone or mend to be situated between again in middle coal simultaneously and manage, pass through Coal selects needed for heavy-media suspension density and the normal sorting of supplement in cyclone again during moisturizing or benefit Jie's pipe can be adjusted Pressure, to realize that the cleaned coal of centering coal tong band is effectively sorted.The utility model is simple in construction, easy to use, sorting effect Fruit is good, can substitute existing middle coal and select process procedure again, coal selects again in realization, solves current three products heavy medium cyclone The problem of middle ribbing essence generally occurred in assorting room, production cost is reduced, improve the economic benefit of coal preparation plant, reach Resource maximally utilizes.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is Fig. 1 top view.
Marked in figure as follows:First paragraph is main to select cyclone 1, raw coal feeding mouth 2, first paragraph are main to select cyclone overfall 3, One section main select cyclone to enter to be situated between pipe 4, second segment are main selects cyclone 5, second segment are main to select the main choosing rotation of cyclone underflow opening 6, second segment Stream device overflow pipe 7, middle coal select cyclone 8, middle coal to select cyclone underflow opening 9, middle coal to select cyclone overflow pipe 10, middle coal again again again Cyclone is selected to mend Jie or 11,1 sections of filling pipe, 12,23 sections of cyclone connecting reducing pipe cyclone connecting reducing pipe 13 again.
Embodiment
The utility model selects cyclone 1, second segment are main to select cyclone 5, middle coal to select cyclone 8,1 again by first paragraph is main 12,23 sections of cyclone connecting reducing pipes 13 of section cyclone connecting reducing pipe, middle coal select cyclone to mend 11 groups of Jie or filling pipe again Into.
Shown in figure, the main both ends for selecting cyclone 1 of first paragraph have raw coal feeding mouth 2, first paragraph are main to select cyclone to enter respectively Jie's pipe 4 and first paragraph is main selects cyclone overfall 3, first paragraph is main to select cyclone 1 and second segment is main selects cyclone 5 by one or two sections of rotations Stream device connecting reducing pipe 12 is connected.The main both ends for selecting cyclone 5 of second segment have second segment is main to select the He of cyclone underflow opening 6 respectively Second segment is main to select cyclone overflow pipe 7.First paragraph is main to select cyclone 1 and second segment is main selects cyclone 5 to be connected by one or two sections of cyclones Reducer pipe 12 is connect to be connected.These structures are the universal architectures of heavy medium cyclone, can realize height under the influence of centrifugal force The sorting of density.
Shown in figure, the utility model middle coal of being connected again on the basis of existing three products heavy medium cyclone selects again Cyclone 8, the purpose selected again with coal in realization.Its concrete structure is, selects the top of cyclone overflow pipe 7 tangentially to open second segment is main Mouthful, middle coal select again cyclone 8 by two or three sections of cyclone connecting reducing pipes 13 with second segment is main selects the top of cyclone overflow pipe 7 to cut It is connected to opening, middle coal selects the both ends of cyclone 8 to have middle coal to select cyclone underflow opening 9 and middle coal to select cyclone again again respectively again Overflow pipe 10.Using this structure, using two sections it is main select the top of cyclone overflow pipe 7 to be tangentially open, coal and suspension edge in Coal selects cyclone 8 again during tangent line is drawn and tangentially entered, and makes full use of coal in the eddy flow overbottom pressure realization of overflow to select again.
Shown in figure, middle coal select again there is also mounted on cyclone 8 middle coal select again cyclone mend be situated between or filling pipe 11, middle coal is again Select cyclone to mend Jie or filling pipe 11 selects at the specular of the cylindrical section routine feeding mouth of cyclone 8 again installed in middle coal, middle coal Cyclone benefit Jie or filling pipe 11 is selected to select the eddy flow direction of cyclone 8 in the same direction again with middle coal again.Middle coal select again cyclone mend be situated between or The effect of filling pipe 11 is, when second segment is main select the overflow of cyclone overflow pipe 7 cyclone pressure be not enough to provide in coal select rotation again When flowing the sorting pressure or too high separating density of device 8, middle coal selects cyclone to mend Jie or filling pipe 11 again can ensure that sorting refers to Mark.
The course of work of the present utility model is as follows:
Raw coal selects cyclone 1 by raw coal feeding mouth 2 into first paragraph is main, and heavy suspension selects cyclone to enter to be situated between by first paragraph is main Pipe 4 selects cyclone 1 into first paragraph is main, and coal particle realizes sorting under the action of the centrifugal force, and cleaned coal selects cyclone from first paragraph is main Overfall 3 is discharged, and second segment is main to select cyclone 5 as heavy suspension tangentially enters for middle coal and spoil, equally in centrifugal force Highdensity sorting is realized under effect, spoil selects cyclone underflow opening 6 to discharge from second segment is main, and middle coal selects eddy flow second segment is main Device overflow pipe 7 is spinned ascending motion.
Middle coal and suspension selects the top of cyclone overflow pipe 7 to be tangentially open extraction along second segment is main, and tangentially enters Coal selects cyclone 8 again, makes full use of coal in the eddy flow overbottom pressure realization of overflow to select again.
Realize that coal effectively sorts in cyclone, it is necessary to which coal selects the suspension in cyclone 8 again during guarantee enters Liquid-tight degree, pressure are suitable, therefore select to set at the specular of the cylindrical section routine feeding mouth of cyclone 8 again in middle coal and revolved with former Stream direction middle coal in the same direction selects cyclone to mend Jie or filling pipe 11 again, while regulation sorts density of suspending liquid, also adds The pressure of sorting.Eventually passing through the middle coal sorted again, therefrom coal selects in cyclone underflow opening 9 out again, then selects cleaned coal therefrom coal is again Select in cyclone overflow pipe 10 out, and can also coal selects cyclone 8 to be sub-elected again in cleans ash determine that it is Sell and be also incorporated into one section of cleaned coal sub-elected as single product, the product structure of coal preparation plant can be enriched.

Claims (2)

1. it is a kind of can realize in the heavy medium cyclone that selects again of coal, it includes, and first paragraph is main to select cyclone(1), the main choosing of second segment Cyclone(5), first paragraph is main to select cyclone(1)Both ends have raw coal feeding mouth respectively(2), first paragraph it is main select cyclone enter be situated between pipe (4)With first paragraph is main selects cyclone overfall(3), second segment is main to select cyclone(5)Both ends there is second segment is main to select eddy flow respectively Device underflow opening(6)With second segment is main selects cyclone overflow pipe(7), first paragraph is main to select cyclone(1)With second segment is main selects cyclone (5)By one or two sections of cyclone connecting reducing pipes(12)It is connected, it is characterised in that:It adds middle coal and selects cyclone again(8), the Two sections main to select cyclone overflow pipe(7)Top is tangentially open, and middle coal selects cyclone again(8)Reducing is connected by two or three sections of cyclones Pipe(13)With second segment is main selects cyclone overflow pipe(7)Tangentially opening is connected on top, and middle coal selects cyclone again(8)It is upper to have respectively Middle coal selects cyclone underflow opening again(9)Cyclone overflow pipe is selected again with middle coal(10).
2. it is according to claim 1 can realize in the heavy medium cyclone that selects again of coal, it is characterised in that:The middle coal is again Select cyclone(8)On there is also mounted middle coal select again cyclone mend be situated between or filling pipe(11), middle coal select again cyclone mend be situated between or moisturizing Pipe(11)Cyclone is selected again installed in middle coal(8)At the specular of cylindrical section routine feeding mouth, middle coal selects cyclone to mend Jie again Or filling pipe(11)Cyclone is selected again with middle coal(8)Eddy flow direction it is in the same direction.
CN201720950915.8U 2017-08-01 2017-08-01 It is a kind of can realize in the heavy medium cyclone that selects again of coal Active CN206965903U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107199113A (en) * 2017-08-01 2017-09-26 中煤科工集团唐山研究院有限公司 It is a kind of can realize in the heavy medium cyclone that selects again of coal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107199113A (en) * 2017-08-01 2017-09-26 中煤科工集团唐山研究院有限公司 It is a kind of can realize in the heavy medium cyclone that selects again of coal

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