CN105435518B - The vacuum blowing switching system and method for a kind of vacuum filter - Google Patents
The vacuum blowing switching system and method for a kind of vacuum filter Download PDFInfo
- Publication number
- CN105435518B CN105435518B CN201510910352.5A CN201510910352A CN105435518B CN 105435518 B CN105435518 B CN 105435518B CN 201510910352 A CN201510910352 A CN 201510910352A CN 105435518 B CN105435518 B CN 105435518B
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- Prior art keywords
- vacuum
- blowing
- control valve
- filter
- compressed air
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
- B01D33/17—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with rotary filtering tables
- B01D33/19—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with rotary filtering tables the table surface being divided in successively tilted sectors or cells, e.g. for discharging the filter cake
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
- B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
- B01D33/62—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying
- B01D33/64—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention belongs to the technical field of vacuum filter, the vacuum blowing switching system and method for a kind of vacuum filter disclosed, the switching system that this method uses, positioned at 2 position of blowing area of vacuum filter dispensing head 1, including：Vacuum control valve 3, blowing control valve 4, vacuum system 5, compressed air 6, described 3 one end of vacuum control valve is connected with 4 one end of blowing control valve, the connected entrance is connected by public working line with the blowing area 2 of vacuum filter dispensing head 1, and 3 other end of vacuum control valve is connected with vacuum system 5, and 4 other end of blowing control valve is connected with compressed air 6.The present invention can carry out the real-time switching of vacuum, blower system according to the change of inlet amount and material properties.By the blowing area of vacuum filter access two-way pipe-line system in parallel, all the way with vacuum communicating, all the way with compressed air communication, controlled by valve, switched at any time according to charging situation respectively.
Description
Technical field
The invention belongs to the technical field of vacuum filter, and in particular to a kind of vacuum blowing switching system of vacuum filter
System and method.
Background technology
Vacuum filter is widely used in the fine fractions such as the filtering of aluminium hydroxide seed, coal industry flotation concentrate, tailing
The separation of solid and liquid of grain.
The fanning strip equipped with filter cloth being fixed on axis of vacuum filter, is filling with the filter groove body inward turning of slurry
Turn, by the effect for the pressure differential being vacuum formed come adsorbate material, form filter cake, achieve the purpose that separation of solid and liquid.Traditional is true
Empty filter distribution head is divided into imbibition area, blots area, blowing three, area working region, and blowing area therein is as a single area
The compressed air of external system is directly connected to, blows off the filter cake on fanning strip.
Now due to material technological reason, its feed properties is very unstable, and density and inlet amount change are very greatly.If charging is close
Degree is big and inlet amount is sufficient, and the filter cake that fanning strip is formed is very thick, and single to lean on scraper discharging, vacuum filter load is too big.If
Fed feed density is low and inlet amount is insufficient, single to lean on blowing unloading, can cause in groove body that liquid level is too low, causes fanning strip to leak vacuum,
Seriously affect filter effect.
The content of the invention
, can be according to work the object of the present invention is to provide the vacuum blowing switching system and method for a kind of vacuum filter
Need, the change of inlet amount and material properties carries out vacuum, the real-time switching of blower system.By the blowing area of vacuum filter simultaneously
Couple into two-way pipe-line system, connected all the way with vacuum system, all the way with compressed air communication, controlled respectively by valve, root
Switch at any time according to charging situation.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of vacuum blowing switching system of vacuum filter, positioned at 2 position of blowing area of vacuum filter dispensing head 1,
Including：Vacuum control valve 3, control valve 4 of drying, vacuum system 5, compressed air 6, described 3 one end of vacuum control valve
Connected with 4 one end of blowing control valve, the blowing which passes through public work operations pipeline and vacuum filter dispensing head 1
Area 2 connects, and 3 other end of vacuum control valve is connected with vacuum system 5,4 other end of blowing control valve with
Compressed air 6 connects.
A kind of vacuum blowing switching method of vacuum filter, is switched over using vacuum blowing switching system, its step
It is as follows：
（1）Dry to vacuum filter, when fed feed density is big and inlet amount is sufficient, closes vacuum control valve (3), beat
Blowing control valve (4) is opened, blowing area 2 is connected by public working line with compressed air 6, using blowing unloading；It is passed through
Compressed air, compressed air 6 are dried by blowing area 2 of the valve 4 of drying to vacuum filter；Absorption is blown off in vacuum filter
The filter cake of interior fan-shaped plate surface, makes discharging more thorough；
（2）Vacuumize, when when fed feed density is low and inlet amount is insufficient or being only with scraper discharging pattern, will blow
Wind control valve 4 is closed, and control vacuum valve 3 is opened, and blowing area 2 is connected by public working line with vacuum system 5, is adopted
Use scraper discharging：5 vacuum pump of vacuum system takes air away, and dispensing head 1 forms vacuum in the region, siphons away remaining water in filter cake
Point, make filter cake moisture lower；
（3）Respective blowing pipeline cannot be opened at the same time with the control valve on vacuum line, according to feed slurry of gypsum liquid
Property and feed quantity switch at any time.
The superiority of the present invention compared with prior art is as follows：
First, when fed feed density is big and inlet amount is sufficient, fanning strip absorption filter cake is thicker, by single scraper discharging
Larger load can be produced to vacuum filter, easily causes truck phenomenon.At this moment need to close vacuum valve 3, open blowing valve
Door 4, is passed through compressed air, which is positive pressure, blows off filter cake of the absorption in fan-shaped plate surface.The effect of the pipeline can prevent
Vacuum filter overloads caused by filter cake on fanning strip is blocked up.
Second, when fed feed density is low and inlet amount is insufficient, fanning strip formed filter cake than relatively thin, and in groove body liquid level compared with
It is low, if by pipeline discharging of drying, liquid level can be caused to decline in groove body too fast, cause vacuum breaking in fanning strip, filter without
Method works normally.At this moment need to close blowing valve 4, open vacuum valve 3, the region is connected with vacuum system 5, formed negative
Pressure, fanning strip adsorb filter cake, ensure the vacuum in Vacuum Filters System.The filter cake that fanning strip adsorbs reaches one in thickness
Determine to pass through scraper discharging during degree.
3rd, feed under stable case, during only with scraper discharging, at this moment need to close blowing valve 4, open vacuum valve
3, the region is connected with vacuum system, form negative pressure, fanning strip adsorbs filter cake, when thickness is reached a certain level by scraping
Knife discharging.
4th, dispensing head region access vacuum system, increases the suction vacuum area of vacuum filter, constant in rotating speed
In the case of, the time for inhaling vacuum is extended, filter cake moisture can be made lower.
Brief description of the drawings
The vacuum blowing switching system structure diagram of Fig. 1 vacuum filters.
In figure：1 vacuum filter dispensing head, 2 blowing areas, 3 vacuum control valves, 4 blowing control valves, 5 vacuum systems,
6 compressed airs；Heavy line is public work operations pipeline, and fine line is blowing pipeline, and dotted line is vacuum line.
Embodiment
As shown in Figure 1, the vacuum blowing switching system of a kind of vacuum filter, positioned at vacuum filter dispensing head 1
Blowing 2 position of area, including：Vacuum control valve 3, control valve 4 of drying, vacuum system 5, compressed air 6, the vacuum control
3 one end of valve processed is connected with 4 one end of blowing control valve, which passes through public working line and vacuum filter dispensing head
1 blowing area 2 connects, and 3 other end of vacuum control valve is connected with vacuum system 5, and the blowing control valve 4 is another
One end is connected with compressed air 6.
A kind of vacuum blowing switching method of vacuum filter, is switched over using vacuum blowing switching system, its step
It is as follows：
（1）Dry to vacuum filter, when fed feed density is big and inlet amount is sufficient, closes vacuum control valve (3), beat
Blowing control valve (4) is opened, blowing area 2 is connected by public working line with compressed air 6, using blowing unloading；It is passed through
Compressed air, compressed air 6 are dried by blowing area 2 of the valve 4 of drying to vacuum filter；Absorption is blown off in vacuum filter
The filter cake of interior fan-shaped plate surface, makes discharging more thorough；
（2）Vacuumize, when when fed feed density is low and inlet amount is insufficient or being only with scraper discharging pattern, will blow
Wind control valve 4 is closed, and control vacuum valve 3 is opened, and blowing area 2 is connected by public working line with vacuum system 5, is adopted
Use scraper discharging：Vacuum system 5 takes air away, and dispensing head 1 forms vacuum in the region, siphons away residual moisture in filter cake, make filter
Cake moisture is lower；
（3）Respective blowing pipeline cannot be opened at the same time with the control valve on vacuum line, according to the property of fed slurry
Matter and feed quantity switch at any time.
The system carries out transformation on the basis of blowing area (2) in original dispensing head (1) and is formed as that vacuum can be carried out at any time
The system of blowing switching.Heavy line part is public working line in figure, and dotted portion is vacuum line system in parallel, the pipe
Road is connected by vacuum control valve (3) with vacuum system (5)；Fine line part is blowing pipe-line system, and the pipeline is by blowing
Wind control valve (4) is connected with compressed air (6).
The configuration of the present invention is simple, it is easy to spread, applied on the vacuum filter of my company's production.
Claims (2)
1. a kind of vacuum blowing switching system of vacuum filter, including：Vacuum control valve（3）, control valve of drying（4）,
Vacuum system（5）, compressed air（6）, it is characterized in that：Vacuum blowing switching system is located at vacuum filter dispensing head（1）Blow
Wind area（2）Position, the vacuum control valve（3）One end and blowing control valve（4）One end connects, which passes through public affairs
Working line and vacuum filter dispensing head altogether（1）Blowing area（2）Connection, the vacuum control valve（3）The other end with
Vacuum system（5）Connection, the blowing control valve（4）The other end and compressed air（6）Connection.
2. a kind of switching method of the vacuum blowing switching system of vacuum filter as claimed in claim 1, it is characterized in that：Adopt
Switched over vacuum blowing switching system, its step is as follows：
（1）Dry to vacuum filter, close vacuum control valve (3), open blowing control valve (4), make blowing area（2）It is logical
Cross public working line and compressed air（6）Connection, using blowing unloading；It is passed through compressed air, compressed air（6）Pass through blowing
Valve（4）Blowing area to vacuum filter（2）Blowing；The filter cake of fan-shaped plate surface of the absorption in vacuum filter is blown off,
Make discharging more thorough；
（2）Vacuumize, by control valve of drying（4）Close, control vacuum valve（3）Open, make blowing area（2）Pass through public work
Make pipeline and vacuum system（5）Connection, using scraper discharging：Vacuum system（5）Vacuum pump takes air, dispensing head away（1）At this
Region forms vacuum, siphons away residual moisture in filter cake, makes filter cake moisture lower；
（3）Respective blowing pipeline cannot be opened at the same time with the control valve on vacuum line, according to the property of fed slurry and
Feed quantity switches at any time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510910352.5A CN105435518B (en) | 2015-12-10 | 2015-12-10 | The vacuum blowing switching system and method for a kind of vacuum filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510910352.5A CN105435518B (en) | 2015-12-10 | 2015-12-10 | The vacuum blowing switching system and method for a kind of vacuum filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105435518A CN105435518A (en) | 2016-03-30 |
| CN105435518B true CN105435518B (en) | 2018-05-11 |
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ID=55546418
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510910352.5A Active CN105435518B (en) | 2015-12-10 | 2015-12-10 | The vacuum blowing switching system and method for a kind of vacuum filter |
Country Status (1)
| Country | Link |
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| CN (1) | CN105435518B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105999818B (en) * | 2016-07-06 | 2018-11-30 | 中信重工机械股份有限公司 | A kind of discharge control apparatus and method of disk filter |
| CN107617255B (en) * | 2017-11-15 | 2023-03-24 | 中冶北方（大连）工程技术有限公司 | Blowing control device for discharging cake of disc type filter |
| CN110152381B (en) * | 2019-04-12 | 2021-06-22 | 中信重工机械股份有限公司 | Filter disc structure of disc filter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4265764A (en) * | 1978-05-03 | 1981-05-05 | Esmil B.V. | Rotary drum vacuum filter |
| CN204219890U (en) * | 2014-10-30 | 2015-03-25 | 湖州核宏机械有限公司 | A kind of rotary drum vacuum filter with cleaning structure |
| CN205613135U (en) * | 2015-12-10 | 2016-10-05 | 中信重工机械股份有限公司 | Switched systems bloies for vacuum filter's vacuum |
-
2015
- 2015-12-10 CN CN201510910352.5A patent/CN105435518B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4265764A (en) * | 1978-05-03 | 1981-05-05 | Esmil B.V. | Rotary drum vacuum filter |
| CN204219890U (en) * | 2014-10-30 | 2015-03-25 | 湖州核宏机械有限公司 | A kind of rotary drum vacuum filter with cleaning structure |
| CN205613135U (en) * | 2015-12-10 | 2016-10-05 | 中信重工机械股份有限公司 | Switched systems bloies for vacuum filter's vacuum |
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| Publication number | Publication date |
|---|---|
| CN105435518A (en) | 2016-03-30 |
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