CN103933763A - Cleaning method of filter press - Google Patents
Cleaning method of filter press Download PDFInfo
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- CN103933763A CN103933763A CN201410134010.4A CN201410134010A CN103933763A CN 103933763 A CN103933763 A CN 103933763A CN 201410134010 A CN201410134010 A CN 201410134010A CN 103933763 A CN103933763 A CN 103933763A
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Abstract
The invention discloses a cleaning method of a filter press. The method comprises the steps of arranging a drug inlet pipeline valve on a mud inlet pipeline of the filter press, arranging a flange blind plate at an outlet of a filtrate pipeline, and arranging an exhaust valve and a reflux pipeline valve on the filtrate pipeline above the filter press; in a state that the filter press is pressed, opening the drug inlet pipeline valve, the exhaust valve and the reflux pipeline valve, and sending a cleaning reagent pump into the filter press until drug liquid flows outside from a reflux pipeline; then, closing the drug inlet pipeline valve and the reflux pipeline valve, and soaking for 8-24h; loosening a filter plate, emptying the cleaning reagent, and cleaning the residue attached on the filter plate, a filtrate hole and a piece of filter cloth by a high-pressure water gun. After the cleaning method is adopted, the matter which is attached on the filter plate and the filter cloth of the filter press and is difficult to dissolve and clean can be cleaned once, so that a great deal of labor force and time can be saved, the labor intensity of operators can be lightened, and the process is simplified; the cleaning method is capable of prolonging the service lives of the filter plate and the filter cloth of the filter press as well as other accessory equipment.
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, has obtained application more and more widely in field of industrial production.But in application process, exist filter press filter board and filter cloth easily to stop up, and be difficult to the problem of cleaning.In order to guarantee the good strainability of filter press, must regularly to filter press filter board and filter cloth, thoroughly clean.The reason that filter press filter board and filter cloth stop up 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: utilize the subsidiary automatic high pressure cleaning device of filter press, clean every day 1～2 time, but cleaning is not thorough, filter plate and filter cloth still can slowly stop up, after a period of time, with the subsidiary automatic high pressure cleaning device of filter press, clean and will there is no effect.At present, the method for thoroughly cleaning filter press filter board and filter cloth is: hundreds of piece filter cloth on filter press is all removed, be placed in a container and soak 2～3 days with chemical agent, then after cleaning up with piece of small-sized high-pressure cleaning device, refill back; In the filter plate groove of filter press, residual tamper also wants a piece 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, 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 thoroughly cleaning and the complexity of cleaning can be different, as: filter plate and filter cloth at 20 days～30 days filter presses of field of sludge treatment just need thoroughly to clean the good strainability of a guarantee filter press, 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 is exempted from dismounting.
Concrete technical scheme is as follows:
A cleaning method for filter press, comprises the steps:
Filter press enter mud install pipeline pesticide feeding duct valve, in the outlet of filtrate pipeline, blank flange is set, on the filtrate pipeline being positioned at above filter press, drain tap and reflux line valve are set;
Under the state compressing at filter press, 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, soak 8-24h;
Unclamp filter plate, emptying cleaning agent, utilizes giant that the residue adhering on filter plate, filtrate hole and filter cloth is cleaned up.
In an embodiment, described cleaning agent is the mixed solution of oxalic acid and hydrochloric acid therein, and the interpolation concentration of its mesoxalic acid is 1.0-5.0wt%, and the interpolation concentration of the hydrochloric acid of 31wt% is 4.0-7.0wt%.
In an embodiment, described soak time is 12-20h therein.
In an embodiment, described filter press is plate and frame type filter-press, chamber filter press or diaphragm filter press therein.
Advantage of the present invention is as follows:
The cleaning method of filter press of the present invention, that structure by filter press is done relevant change: at filter press, enter mud install pipeline pesticide feeding duct valve, outlet at filtrate pipeline arranges blank flange, on the filtrate pipeline being positioned at above filter press, drain tap and reflux line valve are set, under the state compressing at filter press, open into the pesticide feeding duct valve of mud pipeline top and the drain tap of filtrate (liquid pipeline top, and below filtrate (liquid pipeline, blind plate is installed, filter press can be become to a container that soaks filter plate and filter cloth.Then by cleaning agent pumping as filter plate and filter cloth soaked in filter press, last emptying reactant liquor, recycling giant, clean up the residue adhering on filter plate ditch, filtrate hole and filter cloth is disposable, recover the strainability of filter press, whole cleaning process only needs 2 operating personnel, in 2 hours, can complete.
(1) this cleaning method can dissolve and disposable the cleaning up of material of cleaning being difficult on filter press filter board and filter cloth effectively;
(2) this cleaning method, without filter cloth is removed to cleaning from filter press, has saved needed a large amount of artificial and time of dismounting filter cloth, has alleviated operator's labour intensity, has simplified 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 pipeline mounting flange blind plate to improved filter press schematic diagram; 2 install pesticide feeding duct valve for entering mud pipeline; 3 for installing drain tap and reflux line valve on the filtrate pipeline above filter press).
The specific embodiment
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 month of bringing into operation, move basicly stable, mud cake becomes cake good, and mud cake is thicker, and even thickness, mud cake and filter cloth can be peeled off naturally, approximately 70 tons/day of sludge yields.But after one month, start to occur mud cake attenuation gradually, in uneven thickness, the phenomenons such as mud cake bonding filter cloth, need manually with special-purpose instrument, mud cake to be shoveled from filter cloth, this situation causes the filter efficiency of filter cloth to reduce, and presses 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, soon canvas press cloth, filter plate are pulled down one by one, with certain density liquor ferri trichloridi, soak 2～3 days, then with giant, rinse, this method can clean up equipment, 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).
The cleaning method that this implements a kind of filter press, comprises the steps:
Filter press enter mud install pipeline pesticide feeding duct valve, in the outlet of filtrate pipeline, blank flange is set, on the filtrate pipeline being positioned at above filter press, drain tap and reflux line valve are set;
Under the state compressing at filter press, 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, utilizes giant that the residue adhering on filter plate, filtrate hole and filter cloth is cleaned up.
Described cleaning agent is the mixed solution of oxalic acid and hydrochloric acid, and the interpolation concentration of its mesoxalic acid is 1.0-5.0wt%, and the interpolation concentration of the hydrochloric acid of 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 filter cloth is removed to cleaning, only need make full use of the characteristic of filter press, under the state compressing, can form a good closed container for soaking filter plate and filter cloth at filter press.Then cleaning agent is pumped in filter press, filter plate and filter cloth are soaked to reaction approximately 8～24 hours, then unclamp filter plate, emptying reactant liquor, recycling giant, cleans up the residue adhering on filter plate ditch, filtrate hole and filter cloth is disposable, recovers the strainability of filter press, whole cleaning process only needs 2 operating personnel, in 2 hours, can complete.
The method can thoroughly be cleaned filter cloth, and simple to operate, time saving and energy saving, has thoroughly solved 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 dissolve and disposable the cleaning up of material of cleaning being difficult on filter press filter board and filter cloth effectively;
(2) this cleaning method, without filter cloth is removed to cleaning from filter press, has saved needed a large amount of artificial and time of dismounting filter cloth, has alleviated operator's labour intensity, has simplified 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 has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore 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 (4)
1. a cleaning method for filter press, is characterized in that, comprises the steps:
Filter press enter mud install pipeline pesticide feeding duct valve, in the outlet of filtrate pipeline, blank flange is set, on the filtrate pipeline being positioned at above filter press, drain tap and reflux line valve are set;
Under the state compressing at filter press, 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, soak 8-24h;
Unclamp filter plate, emptying cleaning agent, utilizes giant that the residue adhering on filter plate, filtrate hole and filter cloth is cleaned up.
2. the cleaning method of filter press according to claim 1, is characterized in that, described cleaning agent is the mixed solution of oxalic acid and hydrochloric acid, and the interpolation concentration of its mesoxalic acid is 1.0-5.0wt%, and the interpolation concentration of the hydrochloric acid of 31wt% is 4.0-7.0wt%.
3. the cleaning method of filter press according to claim 1, is characterized in that, described soak time is 12-20h.
4. according to the cleaning method of the filter press described in claim 1-3 any one, it 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 true CN103933763A (en) | 2014-07-23 |
| CN103933763B 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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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106178632A (en) * | 2016-09-19 | 2016-12-07 | 安徽理工大学 | Under a kind of coal preparation plant's filter press filter board and filter cloth line, the degree of depth cleans device |
| 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 |
-
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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106178632A (en) * | 2016-09-19 | 2016-12-07 | 安徽理工大学 | Under a kind of coal preparation plant's filter press filter board and filter cloth line, the degree of depth cleans device |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN103933763B (en) | 2016-01-20 |
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