CN103736308B - A kind of filter press filter cake filter method and easy cleaning filter press - Google Patents
A kind of filter press filter cake filter method and easy cleaning filter press Download PDFInfo
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- CN103736308B CN103736308B CN201310752273.7A CN201310752273A CN103736308B CN 103736308 B CN103736308 B CN 103736308B CN 201310752273 A CN201310752273 A CN 201310752273A CN 103736308 B CN103736308 B CN 103736308B
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Abstract
The invention discloses a kind of filter press filter cake filter method, comprise the following steps: a, cake layer is set on canvas press cloth; B, to filtrate pressurization, make filtrate through cake layer, again through filter-cloth filtering.Further, the present invention carried out following steps before described step a: c, attapulgite and water are mixed into mud; D, with pressure by described mud press-in Filter Press, form filter cake.In addition, according to foregoing filtration methods, present invention also offers a kind of easy cleaning filter press, comprise filter frame 2, filter plate 5, filter cloth 4, described filter plate is arranged in described filter frame, and described filter cloth is arranged on described filter plate, and described filter cloth is provided with cake layer.The present invention arranges filter cake on filter cloth, carries out primary filter, filter press is become have the filter of cascade filtration, and efficiently utilize the filter cake produced after filtering, improve filter efficiency, reduce filter pressure, economize energy, cost is low.
Description
Technical field
The present invention relates to a kind of filter press technology, particularly a kind of filter press filter cake filter method and easy cleaning filter press.
Background technology
Press filtration is separated a kind of conventional method of solidliquid mixture, and comprise frame, hold-down mechanism, filter mechanism, filter mechanism comprises filter plate, filter frame, filter cloth, and filter cloth has filter opening.Solidliquid mixture material enters each filter chamber from the charging hole frame thrust plate, the solid particle that particle diameter is greater than filter opening footpath is trapped in filter chamber by filter cloth, particle diameter is less than the solid particle in filter opening footpath and liquid is then filtered through filter opening, the solid particle that some particle diameters and filter cloth aperture are more or less the same then to pierce under the effect of the pressure in filter opening and rests in filter cloth hole, filter opening is caused to block, affect filter efficiency, the separation particularly containing the solidliquid mixture of greasy dirt is particularly difficult.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.For this reason, the present invention proposes a kind of filter press filter cake filter method, comprises the following steps:
A, cake layer is set on canvas press cloth;
B, to filtrate pressurization, make filtrate through cake layer, again through filter-cloth filtering.
Further, the present invention carried out following steps before described step a:
C, attapulgite and water are mixed into mud;
D, with pressure by described mud press-in Filter Press, form filter cake;
Further, the ratio of attapulgite and water is 1:9 to 1:4, and filter-cloth filtering precision is 150-250 μm, and filter cake thickness is 5-20mm, and pressure is 0.3-0.4mpa.
Further, after described step b, following steps are carried out:
E, to filter after a period of time, stop filtering, open filter press,
Clean out the solid matter that filter cake is detained, perform step c, d, b successively, filter after forming new filter cake; Or
Filter cake is cleaned out, performs step c, d, b successively, filter after forming new filter cake.
In addition, according to above-mentioned filter method, present invention also offers a kind of easy cleaning filter press, comprise filter frame 2, filter plate 5, filter cloth 4, described filter plate is arranged in described filter frame, and described filter cloth is arranged on described filter plate, and described filter cloth is provided with cake layer.
The present invention arranges filter cake on filter cloth, carries out primary filter, filter press is become have the filter of cascade filtration, and efficiently utilize the filter cake produced after filtering, improve filter efficiency, reduce filter pressure, economize energy, cost is low; And due to the high adsorption capacity of attapulgite, can solia particle in absorption filtrate, thus avoid solia particle particularly greasy dirt be attached on the filter cloth cleaning difficulty that filter cloth causes, the cleaning of filter cloth is become and is more prone to.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Wherein, 1, thrust plate; 2, filter frame; 3, cake layer; 4, filter cloth; 5, filter plate; 6, pressure strip; 7, filter chamber.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Embodiment one
A kind of filter press filter cake filter method of the present invention comprises the following steps:
I, by attapulgite and water mix and blend uniformly mud, wherein the ratio of attapulgite and water is 1:9;
II, with the attapulgite mud press-in Filter Press that pump will prepare, form filter cake, wherein filter cloth precision is 150 μm, and the pressure of pump is 0.3mpa, stops mud being pressed into Filter Press when filter cake thickness reaches 5mm;
III, the filtrate pressurization will needing to filter, pressure is 0.3mpa, makes filtrate through cake layer, again through filter-cloth filtering;
IV, after filtering a period of time, the solid matter that filter cake is detained gets more and more, and will block filtration channel, at this moment stops filtering, clears up filter press.Open filter press,
Clean out the solid matter that filter cake is detained, adding portion attapulgite filtering slurry, start step I, II and form new filter cake, then perform step III and carry out new filtration; Or
Filter cake is cleaned out, starts step I, II and form new filter cake, then perform step III and carry out new filtration,
Thus keep the strainability of filter press, thus extend filter cycle.
Embodiment two
A kind of filter press filter cake filter method of the present invention comprises the following steps:
I, by attapulgite and water mix and blend uniformly mud, wherein the ratio of attapulgite and water is 1:4;
II, with the attapulgite mud press-in Filter Press that pump will prepare, form filter cake, wherein filter cloth precision is 200 μm, and the pressure of pump is 0.35mpa, stops mud being pressed into Filter Press when filter cake thickness reaches 20mm;
III, the filtrate pressurization will needing to filter, pressure is 0.35mpa, makes filtrate through cake layer, again through filter-cloth filtering;
IV, after filtering a period of time, the solid matter that filter cake is detained gets more and more, and will block filtration channel, at this moment stops filtering, clears up filter press.Open filter press,
Clean out the solid matter that filter cake is detained, adding portion attapulgite filtering slurry, start step I, II and form new filter cake, then perform step III and carry out new filtration; Or
Filter cake is cleaned out, starts step I, II and form new filter cake, then perform step III and carry out new filtration,
Thus keep the strainability of filter press, thus extend filter cycle.
Embodiment three
A kind of filter press filter cake filter method of the present invention comprises the following steps:
I, by attapulgite and water mix and blend uniformly mud, wherein the ratio of attapulgite and water is 1:5;
II, with the attapulgite mud press-in Filter Press that pump will prepare, form filter cake, wherein filter cloth precision is 250 μm, and the pressure of pump is 0.4mpa, stops mud being pressed into Filter Press when filter cake thickness reaches 13mm;
III, the filtrate pressurization will needing to filter, pressure is 0.35mpa, makes filtrate through cake layer, again through filter-cloth filtering;
IV, after filtering a period of time, the solid matter that filter cake is detained gets more and more, and will block filtration channel, at this moment stops filtering, clears up filter press.Open filter press,
Clean out the solid matter that filter cake is detained, adding portion attapulgite filtering slurry, start step I, II and form new filter cake, then perform step III and carry out new filtration; Or
Filter cake is cleaned out, starts step I, II and form new filter cake, then perform step III and carry out new filtration,
Thus keep the strainability of filter press, thus extend filter cycle.
In addition, according to above-mentioned filter method, the present invention also provides a kind of easy cleaning filter press as shown in Figure 1, comprise thrust plate 1, filter frame 2, filter cloth 4, filter plate 5, pressure strip 6, described filter plate is arranged in described filter frame, described filter cloth is arranged on described filter plate, and filter frame is isolated into filter chamber 7 by filter plate, described filter cloth is provided with cake layer 3.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (2)
1. a filter press filter cake filter method, is characterized in that, comprises the following steps successively:
A, attapulgite and water are mixed into mud;
B, with pressure by described mud press-in Filter Press, filter cloth forms cake layer;
C, to filtrate pressurization, make filtrate through cake layer, again through filter-cloth filtering;
D, to filter after a period of time, stop filtering, open filter press, clean out the solid matter that filter cake is detained, perform step a, b successively, filter after forming new cake layer; Or cake layer is cleaned out, perform step a, b successively, filter after forming new cake layer;
The ratio of described attapulgite and water is 1:9 to 1:4;
Described filter-cloth filtering precision is 150-250 μm;
Described filter cake thickness is 5-20mm;
Described pressure is 0.3-0.4mpa.
2. filter press filter cake filter method according to claim 1, is characterized in that, the ratio of described attapulgite and water is 1:5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310752273.7A CN103736308B (en) | 2013-12-31 | 2013-12-31 | A kind of filter press filter cake filter method and easy cleaning filter press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310752273.7A CN103736308B (en) | 2013-12-31 | 2013-12-31 | A kind of filter press filter cake filter method and easy cleaning filter press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103736308A CN103736308A (en) | 2014-04-23 |
| CN103736308B true CN103736308B (en) | 2016-02-10 |
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| CN201310752273.7A Expired - Fee Related CN103736308B (en) | 2013-12-31 | 2013-12-31 | A kind of filter press filter cake filter method and easy cleaning filter press |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107638735B (en) * | 2017-10-13 | 2020-05-22 | 河钢股份有限公司承德分公司 | Method for filtering slurry into filtrate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3502210A (en) * | 1965-06-25 | 1970-03-24 | Passavant Werke | Filtering process and system for carrying the process into effect |
| CN101935362A (en) * | 2009-06-30 | 2011-01-05 | 上海佰加壹医药有限公司 | Method for purifying hyaluronic acid by pre-laying filter aid |
| CN102847373A (en) * | 2011-06-30 | 2013-01-02 | 张琼文 | Waste liquid filtering method |
| CN102895811A (en) * | 2012-10-26 | 2013-01-30 | 天津太平洋机电技术及设备有限公司 | Water-backwashing, zero-emission, environment-friendly and plate frame-reversible diatomite filtering machine |
-
2013
- 2013-12-31 CN CN201310752273.7A patent/CN103736308B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3502210A (en) * | 1965-06-25 | 1970-03-24 | Passavant Werke | Filtering process and system for carrying the process into effect |
| CN101935362A (en) * | 2009-06-30 | 2011-01-05 | 上海佰加壹医药有限公司 | Method for purifying hyaluronic acid by pre-laying filter aid |
| CN102847373A (en) * | 2011-06-30 | 2013-01-02 | 张琼文 | Waste liquid filtering method |
| CN102895811A (en) * | 2012-10-26 | 2013-01-30 | 天津太平洋机电技术及设备有限公司 | Water-backwashing, zero-emission, environment-friendly and plate frame-reversible diatomite filtering machine |
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| CN103736308A (en) | 2014-04-23 |
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Address after: 430074 Hubei city of Wuhan province Wuhan Dongxin Development Zone East Lake Road, Cyberport Patentee after: Hubei niutaili environmental Polytron Technologies Inc Address before: 430073, Hubei, Wuhan province East Lake New Technology Development Zone, Optics Valley pioneering street, 73, Wuhan Overseas Students Pioneer Park E building on the third floor, room 3126 Patentee before: HUBEI NIUTAILI ENVIRONMENTAL SCIENCE & TECHNOLOGY CO., LTD. |
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