CN202605854U - Filter cloth regeneration rinsing device for plate filter - Google Patents

Filter cloth regeneration rinsing device for plate filter Download PDF

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Publication number
CN202605854U
CN202605854U CN 201120512861 CN201120512861U CN202605854U CN 202605854 U CN202605854 U CN 202605854U CN 201120512861 CN201120512861 CN 201120512861 CN 201120512861 U CN201120512861 U CN 201120512861U CN 202605854 U CN202605854 U CN 202605854U
Authority
CN
China
Prior art keywords
regeneration
filter
filter cloth
pipe
cleaning hose
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.)
Expired - Fee Related
Application number
CN 201120512861
Other languages
Chinese (zh)
Inventor
龙旭
李国乾
邹勇明
刘海文
李一茂
韦双意
谭秋奇
甘廷琨
秦三华
陆敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aluminum Corp of China Ltd
Original Assignee
Aluminum Corp of China Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aluminum Corp of China Ltd filed Critical Aluminum Corp of China Ltd
Priority to CN 201120512861 priority Critical patent/CN202605854U/en
Application granted granted Critical
Publication of CN202605854U publication Critical patent/CN202605854U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a filter cloth regeneration rinsing device for a plate filter. A regeneration rinsing pipe is connected with a washing pipe, and the regeneration rinsing pipe is installed at the tail end of a reverse blowing area and located between a slurry pipe and a weak filtrate pipe. A nozzle used by the regeneration rinsing pipe is capable of providing higher water pressure and larger spraying areas. By means of the filter cloth regeneration rinsing device for the plate filter, a plate is subjected to regeneration washing only once per two hours, and adherent water and adherent alkali of an aluminum hydroxide filter cake are not changed so that time and water for regeneration are reduced, regeneration effects of filter cloth are improved, washing water for ordinary production is simultaneously reduced, and high-intensity physical labor for manually shoveling plate surfaces is avoided.

Description

A kind of horizontal table filter filter cloth regeneration flusher
Technical field
The utility model belongs to the alumina producing field, is specifically related to the filter cloth regeneration flusher after stopping up with the filter cloth filter opening that scabs of filter cloth in a kind of horizontal table filter production process.
Background technology
The filter plant of alumina producing enterprise product aluminium hydroxide adopts horizontal table filter basically; It integrates isolated by filtration, washing, the drying of product; Filter medium is a filter cloth; Its apparatus body be a horizontal positioned by the assembled disk of several piece filter plate, whole card is divided into cloth filtering area, once washing filtering area, secondary washing filtering area and blowback wind district.In the ordinary production, rotate at the horizontal level inverse clock square position, and the aluminum hydroxide slime of high basicity gets into the cloth filtering area; Under the effect of vacuum and filter cloth, realize Separation of Solid and Liquid; Form filter cake, filter cake gets into the once washing filtering area, carries out preliminary washing and filtering by the weak filtrating that the secondary washing filtering area comes; Filter cake gets into the secondary washing filtering area subsequently, by the condensed water of cleaning filter cake is carried out washing and filtering once more after ,Discharge from card by discharge auger, obtain attaching the aluminium hydroxide product that alkali meets the requirements.The filter cloth of removal filter cake is through blowback wind district, after by compress wind filter cloth being regenerated, gets into next cycle operation again.
The remainder layer of the residual 8~10cm of meeting after the discharging of horizontal table filter filter cloth in actual production process; Simultaneously because of the filter cloth long period of soaking in alkali lye, can produce gradually and scab, under vacuum action; In the slip fine particle also can stop up the filter cloth filter opening; Make filter cloth filter effect variation gradually, AH product attached water, attach alkali and raise, cause the coal gas consumption of alkaline consumption, roaster to raise.For guaranteeing the filter cloth filter effect, must wash 8 minutes filter cloth in per 1 hour in process of production, make filter cloth regeneration.
Existing filter cloth regeneration method is: use original wash water pipe to carry out filter cloth washing,, cause index fluctuation big easily though the filter cloth regeneration effect can meet the demands reluctantly, AH to attach the alkali appearance that exceeds standard more, the real-world operation rate is lower.And when the filter cloth filter effect was relatively poor, before flushing, also handy spades had been cleared up clout and has been washed, and the shovel card also causes the breakage of filter cloth easily, shortened the life cycle of filter cloth, and labour intensity also strengthens simultaneously.
This filter cloth regeneration method wash water unit consumption is high, and effect is undesirable simultaneously, and labour intensity is big, seriously restricts the unit production capacity of horizontal table filter.
The utility model content
The utility model provides a kind of novel horizontal table filter filter cloth regeneration flusher; Under the situation that does not influence existing horizontal table filter production performance; Can effectively guarantee the filter cloth regeneration effect, reduce the filter cloth regeneration water, also improve horizontal table filter unit's production capacity simultaneously; Also reduce artificial shovel card, reduced labour intensity.
The technical scheme that the utility model adopted is: separate filter cloth regeneration cleaning hose and wash water pipe, set up a root regeneration cleaning hose is installed.Switch through two valves switches, and in production process and regeneration flushing process, falls with wash water pipe and regeneration cleaning hose.
It is terminal that the filter cloth regeneration flushing pipe is installed to blowback wind district, after the slip pipe.In the regeneration flushing process; After blowback wind is the filter cloth arch, under the brute force of wash water is impacted, wash away remainder layer; Go out filter opening to the granule that stops up filter opening; Prevent that effectively fine particle from stopping up the filter cloth filter opening for a long time, what simultaneously the wash water strong flushing also can fine minimizing filter cloth scabs, and the regeneration effect of filter cloth is improved.
For guaranteeing that wash water has enough impulsive forces, and guarantee that the water outlet of each shower nozzle is all the same with pressure, designed shower nozzle and pipeline again according to hydrodynamics.
Architectural feature is: comprise the wash water pipe, regeneration cleaning hose 4 is set is connected with wash water pipe 3 that regeneration cleaning hose 4 is installed in blowback wind district 5 ends, between slip pipe 1 and weak filtrate pipe 2.
Regeneration cleaning hose 4 adopts variable-diameter structure, and diameter successively decreases along the wash water flow direction one by one.
On the regeneration cleaning hose 4 regenerating tube shower nozzle 6 is installed, regenerating tube shower nozzle 6 tail ends are equipped with deflector 7, deflector angle 60 degree, and flow-guiding mouth 8 water conservancy diversion opened gap 4mm, water conservancy diversion opening length is the shower nozzle radius length.
Advantage of the utility model and good effect:
Adopt the filter cloth regeneration structure of the utility model, the square position only needs regeneration flushing in 2 hours once, and the attached water of aluminum hydroxide filter cake attaches alkali not to be changed; Not only reduce the time and the water of regeneration, also reduced the slurry of producing at ordinary times simultaneously, also effectively prolonged the cycle of horizontal table filter washing filter cloth; Have simple to operate; The characteristics that labour intensity is low, the unit production capacity of square position increases, and has also exempted the strong physical work of artificial shovel card.
Description of drawings
Fig. 1 is a horizontal table filter system configuration sketch map.
Fig. 2 is a filter cloth regeneration cleaning hose sketch map.
Fig. 3 is a filter cloth regeneration cleaning hose shower nozzle sketch map.
Among the figure, 1-slip pipe, the weak filtrate pipe of 2-, 3-wash water pipe, the 4-cleaning hose of regenerating, 5-blowback wind district, 6-regenerating tube shower nozzle, 7-deflector, 8-flow-guiding mouth, 9-screw thread.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Regeneration cleaning hose 4 is connected with wash water pipe 3, is arranged on blowback wind district 5 ends, between slip pipe 1 and weak filtrate pipe 2.Regeneration cleaning hose 4 is welded by the pipe of three sections different-diameters, and regeneration cleaning hose 4 diameters successively decrease along the wash water flow direction.Regenerating tube shower nozzle 6 is connected on the regeneration cleaning hose 4 through screw thread 9, connects 7 regenerating tube shower nozzles 6 successively on the regeneration cleaning hose 4, and first and last regenerating tube shower nozzle 6 is 80cm from the Internal and external cycle edge horizontal range of square position card.The arrangement of regenerating tube shower nozzle 6 is that inner ring and outer ring are respectively installed 2, interval 100cm, and zone line evenly distributes 3.Regenerating tube shower nozzle 6 tail ends are equipped with deflector 7, water conservancy diversion angle 60 degree, and the water conservancy diversion opened gap 4mm of flow-guiding mouth 8, water conservancy diversion opening length is spout radius length, and enough hydraulic pressure and spray areas can be provided.
In ordinary production, the water flowing of wash water pipe, the regeneration cleaning hose cuts out; In the regeneration flushing process, the wash water pipe is closed the water inlet of regeneration cleaning hose through controlled valve; Wash water is through 7 shower nozzles of new regeneration cleaning hose, the filter cloth that strong flushing is risen by the blowback wind, and the shower nozzle that the regeneration cleaning hose uses can provide stronger hydraulic pressure and spray area; Tamper in the filter cloth hole is rinsed totally with scabbing, and the filter cloth regeneration effect improves.
Production instance:
Horizontal table filter: slip flow 101m 3/ h, output 81t.AH/h, per 112 minutes of horizontal table filter suspend and produce, and use regeneration cleaning hose flushing filter cloth, the regeneration cleaning hose use discharge 40m 3/ h, washing time are 8 minutes.Through measuring, the AH product attached water 2.6% of horizontal table filter attaches alkali 0.009%, and wash water unit consumption 0.35t/t. does AH.

Claims (3)

1. a horizontal table filter filter cloth regeneration flusher comprises the wash water pipe, it is characterized in that: regeneration cleaning hose (4) is set is connected with wash water pipe (3), regeneration cleaning hose (4) is installed in blowback wind district (5) end, is positioned between slip pipe (1) and the weak filtrate pipe (2).
2. horizontal table filter filter cloth regeneration flusher according to claim 1 is characterized in that: regeneration cleaning hose (4) adopts variable-diameter structure, and diameter successively decreases along the wash water flow direction one by one.
3. horizontal table filter filter cloth regeneration flusher according to claim 1; It is characterized in that: on the regeneration cleaning hose (4) regenerating tube shower nozzle (6) is installed; Regenerating tube shower nozzle (6) tail end is equipped with deflector (7); Deflector angle 60 degree, flow-guiding mouth (8) water conservancy diversion opened gap 4mm, water conservancy diversion opening length is the shower nozzle radius length.
CN 201120512861 2011-12-09 2011-12-09 Filter cloth regeneration rinsing device for plate filter Expired - Fee Related CN202605854U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120512861 CN202605854U (en) 2011-12-09 2011-12-09 Filter cloth regeneration rinsing device for plate filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120512861 CN202605854U (en) 2011-12-09 2011-12-09 Filter cloth regeneration rinsing device for plate filter

Publications (1)

Publication Number Publication Date
CN202605854U true CN202605854U (en) 2012-12-19

Family

ID=47339588

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201120512861 Expired - Fee Related CN202605854U (en) 2011-12-09 2011-12-09 Filter cloth regeneration rinsing device for plate filter

Country Status (1)

Country Link
CN (1) CN202605854U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106267987A (en) * 2016-09-05 2017-01-04 中国铝业股份有限公司 Vertical filter cloth of disc filter cleaning method
CN112758967A (en) * 2021-03-08 2021-05-07 贵州华锦铝业有限公司 Device and process for producing aluminum oxide from high-carbon bauxite

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106267987A (en) * 2016-09-05 2017-01-04 中国铝业股份有限公司 Vertical filter cloth of disc filter cleaning method
CN112758967A (en) * 2021-03-08 2021-05-07 贵州华锦铝业有限公司 Device and process for producing aluminum oxide from high-carbon bauxite

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121219

Termination date: 20131209