CN106267936A - High water cut cleaned coal dehydration ultra-high pressure piston type variable capacity pressure filter after a kind of coal slime flotation - Google Patents

High water cut cleaned coal dehydration ultra-high pressure piston type variable capacity pressure filter after a kind of coal slime flotation Download PDF

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Publication number
CN106267936A
CN106267936A CN201610085111.6A CN201610085111A CN106267936A CN 106267936 A CN106267936 A CN 106267936A CN 201610085111 A CN201610085111 A CN 201610085111A CN 106267936 A CN106267936 A CN 106267936A
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China
Prior art keywords
filter
plate
ultra
piston type
variable capacity
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Application number
CN201610085111.6A
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CN106267936B (en
Inventor
陈亦军
欧阳征国
汪家喜
刘道广
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Shenzhen Ruicheng Shidai Industrial Co Ltd
SHANGHAI TECHASE ENVIRONMENT PROTECTION CO Ltd
Original Assignee
Shenzhen Ruicheng Shidai Industrial Co Ltd
SHANGHAI TECHASE ENVIRONMENT PROTECTION CO Ltd
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Priority to CN201610085111.6A priority Critical patent/CN106267936B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D25/00Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/12Filter presses, i.e. of the plate or plate and frame type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D25/00Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/12Filter presses, i.e. of the plate or plate and frame type
    • B01D25/164Chamber-plate presses, i.e. the sides of the filtering elements being clamped between two successive filtering plates

Abstract

The invention discloses High water cut cleaned coal dehydration ultra-high pressure piston type variable capacity pressure filter after a kind of coal slime flotation.It includes oil cylinder, oil cylinder seat, girder, pressure plare, thrust plate and some filter frames;The front end of filter frame, rear end are respectively equipped with push plate, bearing plate;On same circumference, some Packing springs it are provided with between push plate and bearing plate;Bearing plate is fixing with filter plate installing plate to be connected;Fixing filter plate is fixing with filter plate installing plate to be connected;It is installed with piston shaft on fixing filter plate;Eject that filter plate and piston shaft are fixing to be connected;At fixing filter plate with eject and be provided with ejector spring between filter plate.The present invention has made to improve on existing supertension elasticity squeezer: eject filter plate by fixedly mounting fixed installation on piston shaft, then piston shaft on fixing filter plate, makes original elastic squeezer become piston type variable and holds pressure filter;By at fixing filter plate with eject and arrange ejector spring between filter plate, it is achieved that filter cake drops automatically.

Description

High water cut cleaned coal dehydration ultra-high pressure piston type variable capacity pressure filter after a kind of coal slime flotation
Technical field
The invention belongs to filtration art, after relating to a kind of coal slime flotation, High water cut cleaned coal dehydration supertension is lived Plug variable capacity pressure filter.
Background technology
From discarded coal slime, extract low-sulfur low-ash cleaning cleaned coal by dosing flotation, be a kind of energy-conserving and environment-protective New technology, needs in this new technology route to use and a kind of can directly carry out the High water cut cleaned coal after coal slime flotation The filtering separation device of dehydration.
Applicant for the most whole 3 years of the research and development of High water cut cleaned coal dehydration filtering separation device after coal slime flotation, During this, they have visited domestic main filtering separation device manufacture, have used producer, with these producers Technology communication and the investigation of multi-form are carried out, at rotary drum vacuum filter, the miscible squeezer of belt, various Carried out on the filtering separation devices such as centrifuge, chamber filter press, elastic sheet frame squeezer many times lab scale, in Have a try and test, achieve substantial amounts of experimental data.But end product finds, does not has a kind of existing equipment can be direct The dewatering and filtering applying High water cut cleaned coal after coal slime flotation separates, and only elastic sheet frame squeezer is relatively Its requirement.Difficult point mainly has four, and one to be intended to refinement coal moisture content low, cleaned coal moisture content≤9% after filtration;Two Being that requirement yield is big, treating capacity is big, cleaned coal absolute treating capacity >=10 ton hour platform;Three is that squeeze pressure is big, ≥5.5MPa;Four is should be able to realize automatically unloading mud cake.
And existing filtering separation device all cannot meet these technological requirements, the shortcoming of prior art is as follows:
(1) squeeze pressure is inadequate, domestic squeeze pressure≤5MPa.
(2) treating capacity is inadequate, and what the elastic sheet frame squeezer treating capacity of domestic production was maximum is that Shanghai has with minister environmental protection TCYZ200 (1770) type that limit company produces, its treating capacity is over dry mud 4 ton hour platform.
(3) moisture content does not reaches, moisture content >=20% of existing squeezer filter cake.
(4) can not realize filter cake automatically to drop, during moisture content≤9% of particularly cleaned coal, filter cake is the most dry very hard, past Toward being stuck in filter plate space.
(5) the filter chamber degree of depth of existing filtering separation device is 10~30mm, and treating capacity is little, and efficiency is low.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of in the squeezing of existing supertension elasticity Improving on the basis of machine, after meeting the coal slime flotation of technological requirement, High water cut cleaned coal dehydration ultra-high pressure piston type can Transfiguration pressure filter.
Technical scheme is as follows:
High water cut cleaned coal dehydration ultra-high pressure piston type variable capacity pressure filter after a kind of coal slime flotation, it includes oil Cylinder, oil cylinder seat, girder, pressure plare, thrust plate, and the some filter frames being located between pressure plare and thrust plate; Push plate, bearing plate it is respectively provided on two sides with before and after filter frame;Set on same circumference between push plate and bearing plate There are some Packing springs;Bearing plate is fixing with filter plate installing plate to be connected;Fixing filter plate is fixing with filter plate installing plate even Connect;It is installed with piston shaft on fixing filter plate;Eject that filter plate and piston shaft are fixing to be connected;At fixing filter plate and Eject and between filter plate, be provided with ejector spring.
It is installed with four piston shaft on fixing filter plate;Four piston shaft are uniformly distributed on same circumference.
At fixing filter plate with eject and be provided with four ejector springs between filter plate on same circumference;Four ejector springs It is evenly distributed on same circumference.
Beneficial effects of the present invention:
High water cut cleaned coal dehydration ultra-high pressure piston type variable capacity pressure filter after the coal slime flotation of the present invention, existing Supertension elasticity squeezer on the basis of made following improvement: 1, lived by fixed installation on fixing filter plate On plug axle, then piston shaft, fixed installation ejects filter plate, makes original elastic squeezer become piston type variable and holds Pressure filter so that it is disclosure satisfy that the dewatering and filtering separating technology requirement of High water cut cleaned coal after coal slime flotation.2, logical Cross at fixing filter plate and eject ejector spring is set between filter plate, it is achieved that filter cake drops (spring dump) automatically.
After the coal slime flotation of the present invention, the dehydration of High water cut cleaned coal is with ultra-high pressure piston type variable capacity pressure filter, have as Lower advantage:
(1) squeeze pressure of this ultra-high pressure piston type variable capacity squeezer is up to 6~9MPa;
(2) after this ultra-high pressure piston type variable capacity squeezer is dehydrated, moisture content≤9% of cleaned coal;
(3) the cleaned coal treating capacity of this ultra-high pressure piston type variable capacity squeezer has reached over dry mud 11~13 tons/little Time platform;(4) decrement of this ultra-high pressure piston type variable capacity squeezer is up to 15%~20%;
(5) this ultra-high pressure piston type variable capacity squeezer sheet frame specialized designs filter cake appliance for releasing single lowering device, solves Briquette difficulty drops problem.
Accompanying drawing explanation
Fig. 1 is the complete machine structure schematic diagram of the ultra-high pressure piston type variable capacity pressure filter in the present invention;
Fig. 2 is the Facad structure schematic diagram of the filter frame assembly in the present invention;
Fig. 3 is the filter frame side view (entering pureed state) in the present invention;
Fig. 4 is the filter frame side view (discharging state) in the present invention.
In figure: 1 enters mud pipe, 2 thrust plates, 3 girders, 4 filter frames, 5 pressure plares, 6 oil cylinder seats, 7 Oil cylinder, 8 Hydraulic Stations, 9 ear shoulders, 10 running rollers, 11 bearing plates, 12 fix filter plate, and 13 is close Envelope spring, 14 filter plate installing plates, 15 piston shaft, 16 ejector springs, 17 push plate, 18 eject Filter plate, 19 filter clothes
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further illustrated.
As it is shown in figure 1, High water cut cleaned coal dehydration ultra-high pressure piston type variable capacity after one coal slime flotation of the present invention Pressure filter, it includes oil cylinder 7, oil cylinder seat 6, girder 3, pressure plare 5, thrust plate 2, and is located at pressure The parts such as the some filter frames 4 between plate 5 and thrust plate 2.
As it is shown on figure 3, be respectively provided on two sides with push plate 17, bearing plate 11 before and after filter frame 4;In push plate On same circumference, some Packing springs 13 it are provided with between 17 and bearing plate 11;Bearing plate 11 is installed with filter plate Plate 14 is fixing to be connected;Fixing filter plate 12 is fixing with filter plate installing plate 14 to be connected;Same on fixing filter plate 12 It is uniformly distributed on circumference and is installed with four piston shaft 15;Eject filter plate 18 and four piston shaft 15 are fixed Connect;On same circumference, four ejector springs 16 (figure it is provided with between filter plate 18 at fixing filter plate 12 and ejecting Laterally zygomorphic two ejector springs 16 are depicted) in 3.
As in figure 2 it is shown, filter frame assembly is provided with ear shoulder 9, running roller 10, thus filter frame may be mounted at girder 3 On.
Work process includes: pre-pressing stage, charging stage, squeezing stage, four main mistakes of pulling plate unloading stage Journey.
Pre-pressing stage: start Hydraulic Station 8 and drive oil cylinder 7 that filter frame 4 is pushed to thrust plate 2 side, make each filter frame 4 are closely adjacent to;As it is shown on figure 3, the Packing spring 13 that filter frame 4 outer ring is between pressure-bearing sheet frame and pushing sheet frame Shortening can be extruded under oil cylinder working-pressure effect;The elastic range design load of Packing spring 13 can be controlled in 10~30mm.
Charging stage: coal slurry is squeezed in filter frame 4 through entering mud pipe 1 by plunger displacement pump, moisture passes through filter cloth 19 Oozing, coal slurry is gradually filled with filter frame 4, and concentration gradually rises, and meanwhile, the coal slurry of high concentration gradually produces Pressure, promotion ejects filter plate 18 and is compressed to medial movement, ejector spring 16, absorbs part potential energy;Eject After spring 16 compression section stroke, filter plate 18 back that ejects connected together with it is pasted with filter plate installing plate 14 Close, no longer retreat.
In the squeezing stage: be again started up oil cylinder 7, push filter frame 4 to thrust plate 2 direction, under high pressure effect, Packing spring 13 is extruded further, as shown in Figure 3, Figure 4, and the filter chamber degree of depth A=65~80mm when charging Being extruded to about B=30~50mm, pressure can be increased to 5~9MPa, and coal slurry is extruded as briquette (filter cake); Briquette moisture content is down to 10%~about 8%.
In the pulling plate unloading stage: oil cylinder 7 return, the strength release of Packing spring 13, filter frame 4 recovers to freedom State, the drawing-plate mechanism carried by equipment, is pulled open successively by filter plate;Because of ejector spring 16 gesture during pulling open Can discharge, promotion ejects filter plate 18 and shifts, and this strength can overcome the adhesion between briquette and framework. So briquette is natural separates with framework, deviates from filter frame, completes discharging.
The main technical point of the ultra-high pressure piston type variable capacity pressure filter of the present invention is as follows:
1, big volume, decrement is up to 15%~20%;
2, high pressure, squeeze pressure is up to 5~9MPa;
3, novel auxiliary discharge way (spring dump), can realize filter cake and automatically drop.

Claims (9)

1. a High water cut cleaned coal dehydration ultra-high pressure piston type variable capacity pressure filter, its feature after coal slime flotation Being, it includes oil cylinder, oil cylinder seat, girder, pressure plare, thrust plate, and is located at pressure plare and thrust plate Between some filter frames;The front end of filter frame, rear end are respectively equipped with push plate, bearing plate;Push plate and bearing plate Between on same circumference, be provided with some Packing springs;Bearing plate is fixing with filter plate installing plate to be connected;Fixing filter plate Fix with filter plate installing plate and be connected;It is installed with piston shaft on fixing filter plate;Eject filter plate to fix with piston shaft Connect;At fixing filter plate with eject and be provided with ejector spring between filter plate.
2. after coal slime flotation as claimed in claim 1, ultra-high pressure piston type variable capacity is used in the dehydration of High water cut cleaned coal Pressure filter, it is characterised in that be installed with four piston shaft on fixing filter plate.
3. after coal slime flotation as claimed in claim 2, ultra-high pressure piston type variable capacity is used in the dehydration of High water cut cleaned coal Pressure filter, it is characterised in that four piston shaft are uniformly distributed on same circumference.
4. High water cut cleaned coal dehydration ultra-high pressure piston type after the coal slime flotation as described in claim 1,2 or 3 Variable capacity pressure filter, it is characterised in that at fixing filter plate with eject and be provided with four on same circumference between filter plate Ejector spring.
5. after coal slime flotation as claimed in claim 4, ultra-high pressure piston type variable capacity is used in the dehydration of High water cut cleaned coal Pressure filter, it is characterised in that four ejector springs are evenly distributed on same circumference.
6. High water cut cleaned coal dehydration ultra-high pressure piston type after the coal slime flotation as described in claim 1,2 or 3 Variable capacity pressure filter, it is characterised in that the squeeze pressure of this ultra-high pressure piston type variable capacity squeezer is up to 6~9MPa.
7. High water cut cleaned coal dehydration ultra-high pressure piston type after the coal slime flotation as described in claim 1,2 or 3 Variable capacity pressure filter, it is characterised in that after this ultra-high pressure piston type variable capacity squeezer is dehydrated, containing of cleaned coal Water rate≤9%.
8. High water cut cleaned coal dehydration ultra-high pressure piston type after the coal slime flotation as described in claim 1,2 or 3 Variable capacity pressure filter, it is characterised in that the cleaned coal treating capacity of this ultra-high pressure piston type variable capacity squeezer reaches exhausted Dry mud 11~13 ton hour platform.
9. High water cut cleaned coal dehydration ultra-high pressure piston type after the coal slime flotation as described in claim 1,2 or 3 Variable capacity pressure filter, it is characterised in that the decrement of this ultra-high pressure piston type variable capacity squeezer reaches 15%~20%.
CN201610085111.6A 2016-02-14 2016-02-14 High water cut cleaned coal dehydration ultra-high pressure piston type variable capacity filter press after a kind of coal slime flotation Active CN106267936B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109999543A (en) * 2019-04-22 2019-07-12 重庆长能环境科技有限公司 A kind of super-pressure filter press cake discharge auxiliary device
CN112274983A (en) * 2020-10-26 2021-01-29 骆驼集团(安徽)再生资源有限公司 Lead plaster filter-pressing recovery equipment for recovery of lead-acid storage battery
CN113443727A (en) * 2021-06-18 2021-09-28 深圳市工勘岩土集团有限公司 Car washing tank sludge wastewater overall process collecting, filter-pressing and treating green construction structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998033573A1 (en) * 1997-01-31 1998-08-06 Benesi Steve C Modular filter apparatus
CN104606932A (en) * 2015-01-30 2015-05-13 河南百汇环境工程有限公司 Filter plate structure of variable-capacity type filter press
CN204932973U (en) * 2015-09-15 2016-01-06 江苏中泥净化环境科技有限公司 A kind of filter press of adjustable production capacity
CN205360710U (en) * 2016-02-14 2016-07-06 上海同臣环保有限公司 But dehydration of high moisture clean coal is with superhigh pressure piston varactor pressure filter after coal slime flotation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998033573A1 (en) * 1997-01-31 1998-08-06 Benesi Steve C Modular filter apparatus
CN104606932A (en) * 2015-01-30 2015-05-13 河南百汇环境工程有限公司 Filter plate structure of variable-capacity type filter press
CN204932973U (en) * 2015-09-15 2016-01-06 江苏中泥净化环境科技有限公司 A kind of filter press of adjustable production capacity
CN205360710U (en) * 2016-02-14 2016-07-06 上海同臣环保有限公司 But dehydration of high moisture clean coal is with superhigh pressure piston varactor pressure filter after coal slime flotation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109999543A (en) * 2019-04-22 2019-07-12 重庆长能环境科技有限公司 A kind of super-pressure filter press cake discharge auxiliary device
CN112274983A (en) * 2020-10-26 2021-01-29 骆驼集团(安徽)再生资源有限公司 Lead plaster filter-pressing recovery equipment for recovery of lead-acid storage battery
CN113443727A (en) * 2021-06-18 2021-09-28 深圳市工勘岩土集团有限公司 Car washing tank sludge wastewater overall process collecting, filter-pressing and treating green construction structure
CN113443727B (en) * 2021-06-18 2022-06-03 深圳市工勘岩土集团有限公司 Sludge and wastewater filter-pressing treatment device for car washing tank

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