CN103933763B - The cleaning method of filter press - Google Patents
The cleaning method of filter press Download PDFInfo
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- CN103933763B CN103933763B CN201410134010.4A CN201410134010A CN103933763B CN 103933763 B CN103933763 B CN 103933763B CN 201410134010 A CN201410134010 A CN 201410134010A CN 103933763 B CN103933763 B CN 103933763B
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Abstract
The invention discloses a kind of cleaning method of filter press, comprise the steps: to enter mud Pipe installing pesticide feeding duct valve at filter press, at the outlet mounting flange blind plate of filtrate conduit, drain tap and reflux line valve are installed being positioned on the filtrate conduit above filter press; Under the state that filter press compresses, open pesticide feeding duct valve, drain tap and reflux line valve, by cleaning agent pumping entrance pressure filter until reflux line has liquid to flow out, then close pesticide feeding duct valve and reflux line valve, immersion 8-24h; Unclamp filter plate, emptying cleaning agent, utilize giant to be cleaned up by the residue that filter plate, filtrate hole and filter cloth adhere to.This cleaning method can clean up filter press filter board and filter cloth being difficult to dissolve with the material of cleaning is disposable; Save a large amount of artificial and time, alleviate the labour intensity of operator, simplify flow process; The service life of filter press filter board, filter cloth and other auxiliary device can be extended.
Description
Technical field
The present invention relates to filter press technical field, particularly relate to a kind of cleaning method of filter press.
Background technology
Filter press, as a kind of desirable suspension solid-liquid separating equipment, obtains and applies more and more widely in field of industrial production.But in application process, there is filter press filter board and filter cloth easily blocks, and be difficult to the problem of cleaning.In order to ensure the good strainability of filter press, must regularly thoroughly clean filter press filter board and filter cloth.The reason of filter press filter board and filter cloth blocking is very complicated, is difficult to be undertaken by conventional method, and automatic high pressure cleaning device as subsidiary in filter press is just difficult to it thoroughly to clean up.
Currently used Conventional cleaning method is: the automatic high pressure cleaning device utilizing filter press subsidiary, clean 1 ~ 2 every day, but cleaning is not thorough, filter plate and filter cloth still can slowly block, after a period of time, the automatic high pressure cleaning device cleaning subsidiary with filter press will not have effect.At present, thoroughly the method for cleaning filter press filter board and filter cloth is: all removed by hundreds of block filter cloth on filter press, is placed in a container and soaks 2 ~ 3 days with chemical agent, then after cleaning up with small-sized high-pressure cleaning device one piece of block, refill back; In the filter plate groove of filter press, residual tamper also wants one piece of block to clean up, and filtrate hole is dredged; The shortcoming of this cleaning method is: need to carry out dismounting to filter cloth, operate very very complicated, and 8 ~ 10 people 10 hours just can complete the cleaning of a platen frame filter press filter board and filter cloth, and this cleaning method is time-consuming, effort.
The thorough cleaning frequency of filter press filter board and filter cloth: due to the difference of filter medium, the cycle of thorough cleaning and the complexity of cleaning can be different, as: at filter plate and the filter cloth just thorough good strainability cleaning a guarantee filter press of needs of field of sludge treatment 20 days ~ 30 days filter presses, the cleaning frequency of filter plate and filter cloth is very high, this frequency is high, the cleaning of complicated operation, brings very large puzzlement to the user of filter press.
Summary of the invention
Based on this, the object of this invention is to provide the cleaning method that a kind of filter press exempts to dismantle.
Concrete technical scheme is as follows:
A cleaning method for filter press, comprises the steps:
Enter mud install pipeline pesticide feeding duct valve at filter press, blank flange is set in the outlet of filtrate conduit, drain tap and reflux line valve are set being positioned on the filtrate conduit above filter press;
Under the state that filter press compresses, open pesticide feeding duct valve, drain tap and reflux line valve, by cleaning agent pumping entrance pressure filter until reflux line has liquid to flow out, then close pesticide feeding duct valve and reflux line valve, immersion 8-24h;
Unclamp filter plate, emptying cleaning agent, utilize giant to be cleaned up by the residue that filter plate, filtrate hole and filter cloth adhere to.
Wherein in an embodiment, described cleaning agent is the mixed solution of oxalic acid and hydrochloric acid, and the interpolation concentration of its mesoxalic acid is the interpolation concentration of the hydrochloric acid of 1.0-5.0wt%, 31wt% is 4.0-7.0wt%.
Wherein in an embodiment, described soak time is 12-20h.
Wherein in an embodiment, described filter press is plate and frame type filter-press, chamber filter press or diaphragm filter press.
Advantage of the present invention is as follows:
The cleaning method of filter press of the present invention, by doing relevant change to the structure of filter press: enter mud install pipeline pesticide feeding duct valve at filter press, in the outlet of filtrate conduit, blank flange is set, drain tap and reflux line valve are set being positioned on the filtrate conduit above filter press, under the state that filter press compresses, open the pesticide feeding duct valve above mud pipeline and the drain tap above filtrate (liquid pipeline, and below filtrate (liquid pipeline, blind plate is installed, filter press can be become the container that is soaked filter plate and filter cloth.Then by cleaning agent pumping as soaked filter plate and filter cloth in filter press, last emptying reactant liquor, recycling giant, clean up disposable for the residue that filter plate ditch, filtrate hole and filter cloth adhere to, recover the strainability of filter press, whole cleaning process only needs 2 operating personnel, can complete in 2 hours.
(1) this cleaning method can clean up filter press filter board and filter cloth being difficult to dissolve with the material of cleaning is disposable effectively;
(2) this cleaning method is without the need to removing cleaning by filter cloth from filter press, eliminates a large amount of artificial and time required for dismounting filter cloth, alleviates the labour intensity of operator, simplify flow process;
(3) this cleaning method can extend the service life of filter press filter board, filter cloth and other auxiliary device.
Accompanying drawing explanation
Fig. 1 is that (1 is filtrate conduit mounting flange blind plate to improved filter press schematic diagram; 2 for entering mud Pipe installing pesticide feeding duct valve; 3 for the filtrate conduit above filter press installs drain tap and reflux line valve).
Detailed description of the invention
Below in conjunction with accompanying drawing, the application is further elaborated.
Yida Textile Co., Ltd has introduced the full-automatic turnover panel diaphragm filter press of 6 advanced technology in 2012, in one month that brings into operation, run basicly stable, mud cake becomes cake good, and mud cake is thicker, and thickness is even, mud cake and filter cloth can be peeled off naturally, sludge yield about 70 tons/day.But after one month, start to occur that mud cake is thinning gradually, in uneven thickness, the phenomenons such as mud cake bonding filter cloth, need manually to be shoveled from filter cloth by mud cake with special instrument, this situation causes the filter efficiency of filter cloth to reduce, pressure mud production declining, hand labor intensity is large, and the automatic high pressure cleaning device subsidiary with filter press cannot thoroughly clean.
Equipment manufacturer provides another kind of cleaning method, pull down one by one by canvas press cloth, filter plate, soak 2 ~ 3 days with certain density liquor ferri trichloridi, then rinse with giant, equipment can clean up by this method, but complicated operation, waste time and energy (cleaning that 8 ~ 10 people 10 hours just can complete a platen frame filter press filter board and filter cloth).
This implements a kind of cleaning method of filter press, comprises the steps:
Enter mud install pipeline pesticide feeding duct valve at filter press, blank flange is set in the outlet of filtrate conduit, drain tap and reflux line valve are set being positioned on the filtrate conduit above filter press;
Under the state that filter press compresses, open pesticide feeding duct valve, drain tap and reflux line valve, by in cleaning agent pumping entrance pressure filter until reflux line has liquid to flow out, then close pesticide feeding duct valve and reflux line valve, soak the preferred 12-20h of 8-24h();
Unclamp filter plate, emptying cleaning agent, utilize giant to be cleaned up by the residue that filter plate, filtrate hole and filter cloth adhere to.
Described cleaning agent is the mixed solution of oxalic acid and hydrochloric acid, and the interpolation concentration of its mesoxalic acid is the interpolation concentration of the hydrochloric acid of 1.0-5.0wt%, 31wt% is 4.0-7.0wt%.
Above-mentioned cleaning method is applicable to plate and frame type filter-press, chamber filter press or diaphragm filter press.
Above-mentioned cleaning method, without the need to filter cloth is removed cleaning, only need make full use of the characteristic of filter press, can form a good closed container for soaking filter plate and filter cloth under the state that filter press compresses.Then cleaning agent is pumped in filter press, reaction about 8 ~ 24 hours is soaked to filter plate and filter cloth, then filter plate is unclamped, emptying reactant liquor, recycling giant, cleans up disposable for the residue that filter plate ditch, filtrate hole and filter cloth adhere to, and recovers the strainability of filter press, whole cleaning process only needs 2 operating personnel, can complete in 2 hours.
The method thoroughly can clean filter cloth, and simple to operate, time saving and energy saving, thoroughly solves the filter cloth of the said firm in filter press use procedure and the cleaning problem of filter plate.
The advantage of above-mentioned cleaning method is as follows:
(1) this cleaning method can clean up filter press filter board and filter cloth being difficult to dissolve with the material of cleaning is disposable effectively;
(2) this cleaning method is without the need to removing cleaning by filter cloth from filter press, eliminates a large amount of artificial and time required for dismounting filter cloth, alleviates the labour intensity of operator, simplify flow process;
(3) this cleaning method can extend the service life of filter press filter board, filter cloth and other auxiliary device.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (2)
1. a cleaning method for filter press, is characterized in that, comprises the steps:
Enter mud install pipeline pesticide feeding duct valve at filter press, blank flange is set in the outlet of filtrate conduit, drain tap and reflux line valve are set being positioned on the filtrate conduit above filter press;
Under the state that filter press compresses, open pesticide feeding duct valve, drain tap and reflux line valve, by cleaning agent pumping entrance pressure filter until reflux line has liquid to flow out, then close pesticide feeding duct valve and reflux line valve, immersion 8-20h; Described cleaning agent is the mixed solution of oxalic acid and hydrochloric acid, and the interpolation concentration of its mesoxalic acid is the interpolation concentration of the hydrochloric acid of 1.0-5.0wt%, 31wt% is 4.0-7.0wt%;
Unclamp filter plate, emptying cleaning agent, utilize giant to be cleaned up by the residue that filter plate, filtrate hole and filter cloth adhere to.
2. the cleaning method of filter press according to claim 1, is characterized in that, described filter press is plate and frame type filter-press, chamber filter press or diaphragm filter press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410134010.4A CN103933763B (en) | 2014-04-03 | 2014-04-03 | The cleaning method of filter press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410134010.4A CN103933763B (en) | 2014-04-03 | 2014-04-03 | The cleaning method of filter press |
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| Publication Number | Publication Date |
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| CN103933763A CN103933763A (en) | 2014-07-23 |
| CN103933763B true CN103933763B (en) | 2016-01-20 |
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| CN201410134010.4A Active CN103933763B (en) | 2014-04-03 | 2014-04-03 | The cleaning method of filter press |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106178632B (en) * | 2016-09-19 | 2018-02-23 | 安徽理工大学 | Depth cleaning device under a kind of coal preparation plant's filter press filter board and filter cloth line |
| CN107261582A (en) * | 2017-08-18 | 2017-10-20 | 郭俊海 | A kind of maintenance plate and frame type filter-press certainly |
| CN107413088A (en) * | 2017-08-18 | 2017-12-01 | 郭俊海 | A kind of efficient plate-frame type filter press |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1915869A (en) * | 2005-08-19 | 2007-02-21 | 力晶半导体股份有限公司 | Method for automatic rinsing filter cloth for sludge dewatering system, and press filtration type sludge dewatering machine |
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2014
- 2014-04-03 CN CN201410134010.4A patent/CN103933763B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1915869A (en) * | 2005-08-19 | 2007-02-21 | 力晶半导体股份有限公司 | Method for automatic rinsing filter cloth for sludge dewatering system, and press filtration type sludge dewatering machine |
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| CN103933763A (en) | 2014-07-23 |
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