CN202052380U - Filter cloth alkali washing system for filter press - Google Patents
Filter cloth alkali washing system for filter press Download PDFInfo
- Publication number
- CN202052380U CN202052380U CN2011201171663U CN201120117166U CN202052380U CN 202052380 U CN202052380 U CN 202052380U CN 2011201171663 U CN2011201171663 U CN 2011201171663U CN 201120117166 U CN201120117166 U CN 201120117166U CN 202052380 U CN202052380 U CN 202052380U
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- China
- Prior art keywords
- alkali
- filter press
- filter
- pump
- press
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Abstract
The utility model relates to a filter cloth alkali washing system for a filter press, which comprises a compressed air storage tank, a filter cake washing pump, an alkali groove, an alkali washing pump, a sewage treatment pool, the filter press and pipelines. The whole system is connected through the pipelines and is provided with corresponding valves, a steam pump and a process water pump are externally connected with the alkali groove, in addition, one alkali liquid back flow pipe is connected to the filter press, the other pipeline is connected to the alkali washing pump, an output pipeline of the alkali washing pump and an output pipeline of the compressed air storage tank are simultaneously connected into the filter press after being merged with a material inlet pipeline of the filter press, the other output pipeline of the compressed air storage tank is merged with a sewage recovery pipe of the sewage treatment pool, and an output pipeline of the filter cake washing pump is connected to the filter press. The filter cloth alkali washing system realizes the on-line operation of the alkali washing, the cost is saved, the pollution is reduced, in addition, the cleaning efficiency is high, the implementation and the operation are easy, and a good cleaning effect can be reached.
Description
Technical field
The utility model relates to a kind of canvas press cloth caustic washing system.
Background technology
In carbon white production process, can use filter press and carry out isolated by filtration.And main structure---the filter cloth of filter press, after using certain hour, stopped up by silica particles by thereon micropore, will cause feed time long, and filter cloth itself is very thin, causes the washing filter cakes time to prolong greatly, thereby causes the obvious decline of production capacity and the increase of water consumption, reduce production efficiency, therefore need regularly filter cloth to be cleaned.Cleaning method commonly used at present is to remove with high pressure water washing or with filter cloth to clean, and this kind method not only labour intensity is big, and the cleaning of filter cloth also is difficult to thoroughly.So need a kind of new purging system to come filter cloth is cleaned,, guarantee production efficiency to reach excellent cleaning effect.
The utility model content
The utility model provides a kind of canvas press cloth caustic washing system, and this system is the cleaning efficiency height not only, and can reach excellent cleaning effect when cleaning filter cloth, guarantees production efficiency.
For achieving the above object, by the following technical solutions:
A kind of canvas press cloth caustic washing system, comprise filter cake washing pump, alkali groove, treatment tank, filter press, described whole system connects by pipeline, and respective valves is installed, described alkali groove is circumscribed with steam pump and technology water pump, and there is a pipeline to be connected to the alkali cleaning pump, the output channel of alkali cleaning pump and the output channel of compressed air reservoir insert filter press after the feed pipe of filter press converges, another output channel of described compressed air reservoir is connected with the sewage recovery tube of treatment tank, and the output channel of described filter cake washing pump is connected to filter press.
As further improvement of the utility model, an alkali lye recovery tube is arranged between described alkali groove and the filter press, its drainpipe with treatment tank inserts filter press.This alkali lye recovery tube can reclaim the alkali lye after using, and is recycling, saved cost.
The utility model has added alkali groove, compressed air reservoir, treatment tank etc. on original press filteration system, realized the on-line operation of alkali cleaning, and be provided with the alkali lye recovery tube, and saved cost, reduced pollution, native system cleaning efficiency height, easy to implement and operation and can reach excellent cleaning effect, has simplified cleaning operation, save cost, guaranteed production efficiency.
Description of drawings
According to embodiment and accompanying drawing utility model is described in further detail below.
Fig. 1 is that the utility model is formed structural representation;
Among the figure:
1, compressed air reservoir; 2, press filtration feed pump; 3, filter cake washing pump; 4, steam pump; 5, technology water pump; 6, alkali groove; 7, alkali cleaning pump; 8, treatment tank; 9, filter press.
The specific embodiment
As shown in Figure 1, provided a specific embodiment of the present utility model, whole system connects by pipeline among the figure, and corresponding valve is installed, alkali groove 6 is circumscribed with steam pump 4 and technology water pump 5, and there is an alkali lye return duct to be connected to filter press 9, another pipeline is connected to alkali cleaning pump 7, the output channel of the output channel of alkali cleaning pump 7 and compressed air reservoir 1 inserts filter press 9 after the feed pipe of filter press 9 converges, the sewage recovery tube of compressed air reservoir 1 another output channel and treatment tank 8 converges, the output channel of filter cake washing pump 3 is connected to filter press 9, an alkali lye recovery tube is arranged between alkali groove 6 and filter press 9, and its drainpipe with treatment tank 8 inserts filter press.
Utilizing the utility model to carry out the alkali cleaning method of operating may further comprise the steps:
A, configuration alkali lye; Check that the liquid level in the alkali groove 6 must not surpass 75% of alkali tankage, alkali concn is 6.0-15.0%, and temperature 50-70 degree is manually controlled technology water pump 5 and added water, descends as temperature, opens steam pump 4 and comes holding temperature, and alkali concn is surveyed in sampling;
After b, alkali lye preparation are finished, open filter press 9, water manually cleans filter cloth, and the cleaning center charging hole;
C, occlusion pressure filter 9 are opened alkali cleaning pump alkali-feeding valve and are gone out the alkali valve, and other all valves are all closed;
D, unlatching alkali cleaning pump 7, alkali lye enters filter press 9 by medium pore, discharge from the last tap of filter press 9, alkali lye flows back to alkali groove 6 from the alkali lye return duct, allow alkali lye circulation 90---120 minutes, during observe situations such as liquid level, temperature and filter press 9 external leakages in the alkali groove 6, descend as temperature, open steam pump 4 heating, maintain the temperature between the 50-70 degree;
E, alkali lye circulation 90---after 120 minutes, close alkali cleaning pump 7, open the following discharge ports valve of filter press 9, all the other valve closings, utilize potential difference to reclaim in the filter press 9 alkali lye to alkali groove 6, treat in the alkali lye return duct flow than hour, slowly open the delivery valve of compressed air reservoir 1, blew five minutes, residue alkali lye in the filter press 9 all is recycled to alkali groove 6;
F, open filter cake washing pump 3, open water intaking valve and outlet valve, other all valve closings, filtrate is discharged waste water to treatment tank 8, is washed till pH value to 7.0-9.0, and this process approximately needs 2 hours, and pH value is surveyed in sampling in the washing process;
After g, washing are finished, slowly open compressed air inlet valve and air outlet valve, all the other valves cut out, and blow five minutes;
H, blow finish after, open filter press 9, checks every block of filter cloth and filter plate, rinse well with hydraulic giant if any foreign material etc., and wash residual alkali lye on the belt feeder;
I, alkali cleaning filter cloth process finish, and open press filtration feed pump 2, and the inlet valve of opening press filtration feed pump 2 carries out normal press filtration operation, begins PH and sulfate that first pays close attention to pulp, can suitably improve the filter cake wash water time.
The utility model has added alkali groove 6, compressed air reservoir 1, treatment tank 8 or the like on original press filteration system, realized the on-line operation of alkali cleaning, and be provided with the alkali lye recovery tube, and saved cost, reduced pollution, native system cleaning efficiency height, easy to implement and operation and can reach excellent cleaning effect, has simplified cleaning operation, save cost, guaranteed production efficiency.
Claims (2)
1. canvas press cloth caustic washing system, comprise filter cake washing pump (3), alkali groove (6), treatment tank (8), filter press (9), it is characterized in that, described whole system connects by pipeline, and respective valves is installed, described alkali groove (6) is circumscribed with steam pump (4) and technology water pump (5), and there is a pipeline to be connected to alkali cleaning pump (7), the output channel of the output channel of alkali cleaning pump (7) and compressed air reservoir (1) inserts filter press (9) after the feed pipe of filter press (9) converges, another output channel of described compressed air reservoir (1) is connected with the sewage recovery tube of treatment tank (8), and the output channel of described filter cake washing pump (3) is connected to filter press (9).
2. a kind of canvas press cloth caustic washing system according to claim 1 is characterized in that, between described alkali groove (6) and the filter press (9) an alkali lye recovery tube is arranged, and its drainpipe with treatment tank (8) inserts filter press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201171663U CN202052380U (en) | 2011-04-20 | 2011-04-20 | Filter cloth alkali washing system for filter press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201171663U CN202052380U (en) | 2011-04-20 | 2011-04-20 | Filter cloth alkali washing system for filter press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202052380U true CN202052380U (en) | 2011-11-30 |
Family
ID=45012367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201171663U Expired - Lifetime CN202052380U (en) | 2011-04-20 | 2011-04-20 | Filter cloth alkali washing system for filter press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202052380U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107970674A (en) * | 2017-11-30 | 2018-05-01 | 宜宾丝丽雅股份有限公司 | A kind of method that lye depth recycles in viscose rayon production |
-
2011
- 2011-04-20 CN CN2011201171663U patent/CN202052380U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107970674A (en) * | 2017-11-30 | 2018-05-01 | 宜宾丝丽雅股份有限公司 | A kind of method that lye depth recycles in viscose rayon production |
| CN107970674B (en) * | 2017-11-30 | 2020-04-03 | 宜宾丝丽雅股份有限公司 | Method for deeply recycling alkali liquor in viscose fiber production |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111130 |
|
| CX01 | Expiry of patent term |