CN201415083Y - Ceramic filter capable of enhancing filtering coefficients - Google Patents
Ceramic filter capable of enhancing filtering coefficients Download PDFInfo
- Publication number
- CN201415083Y CN201415083Y CN2009201476715U CN200920147671U CN201415083Y CN 201415083 Y CN201415083 Y CN 201415083Y CN 2009201476715 U CN2009201476715 U CN 2009201476715U CN 200920147671 U CN200920147671 U CN 200920147671U CN 201415083 Y CN201415083 Y CN 201415083Y
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- ceramic filter
- cell body
- ceramic
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- density
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Abstract
The utility model discloses a ceramic filter capable of enhancing filtering coefficients, comprising a groove (5) for the ceramic filter and a density pond. The groove (5) for the ceramic filter is provided with a return pipe (11) at the return level for returning the low density pulp to the density pond. The ceramic filter is characterized in that another channel is provided between the groove (5) of the ceramic filter and the density pond for guiding the high density pulp to the groove through the density pond in order to form a circulating system with low density return flow and high density inflow. Applying the ceramic filter of the utility model, filtering coefficients of the ceramic filter can be enhanced from 0.6-0.7 to over 0.8.
Description
Technical field
The utility model belongs to long-distance pipe transfer ore pulp field, particularly relates to slurry-Separation of Solid and Liquid wherein, particularly, relates to a kind of ceramic filter that improves filtration coefficients of ceramic filter
Background technology
The conveying of ore is for convenience worn into ore behind the breeze of certain fineness before conveying and water and other chemical solvent mix, and forms ore pulp.After ore pulp is transported to the destination, just the moisture in the ore pulp need be taken off, promptly carry out mineral water and separate; The basic function of ceramic filter is exactly that the moisture in the ore pulp is deviate from, and obtains water content and be about 9% fine ore.Filtration coefficients of ceramic filter is relevant with factors such as pulp density, ore pulp characteristic, ceramic wafers, and generally about 0.6-0.7, this filtration coefficient also has the space of improving to filtration coefficient.The existing method that improves coefficient has combined cleaning, need carry out physics during combined cleaning and clean and Chemical cleaning, and physics cleans and carries out with the method for ultrasonic vibration, and Chemical cleaning is carried out with the method for nitric acid reaction; In cleaning process, physical method and chemical method are carried out simultaneously.Ultrasonic cleaning system is improved research, can improve cleaning efficiency, shorten scavenging period, can improve the ceramic filter operating rate.
China's ultrasonic cleaning technology is existing at present improves, and utilizes new ultrasonic cleaning technology, improves at the existing ultrasonic cleaning system of dehydrating plant, shortens scavenging period and can realize.
The utility model content
In order to solve the existing lower problem of filtration coefficients of ceramic filter, the utility model discloses a kind of ceramic filter that improves filtration coefficient, this ceramic filter comprises ceramic filter cell body (5) and thickening pond, described ceramic filter cell body (5) the overflow liquid level be provided with overflow pipe (11) with the overflow of low concentration ore pulp to thickening pond, it is characterized in that: also exist another passage that the high concentration ore pulp is introduced cell body again by thickening pond between described ceramic filter cell body (5) and the described thickening pond, the circulatory system that the overflow of formation low concentration, high concentration enter.
Make the ore pulp in the cell body keep overflow situation by connect overflow pipe in cell body overflow liquid level always.
Further, the every work of ceramic filter was cleaned 1 time after 7 hours, and each scavenging period is decided to be 1 hour, wherein cleaned and adopted nitric acid and ultrasonic wave to carry out.Clean with recoil water and all adopt filtrate water.Recoil water hydraulic pressure is 1.0-1.2kgf, preferred 1.2kgf.
Adopt ceramic filter of the present utility model, filtration coefficients of ceramic filter can be brought up to more than 0.8 by 0.6-0.7.
Description of drawings
Fig. 1: ceramic filter principle schematic;
Description of reference numerals:
The 1-spindle unit; The 2-filter chamber; The 3-ceramic filter plate; The 4-filter cake; The 5-cell body;
6-drainage bucket; The 7-conveyer; The 8-Vltrasonic device; The 9-elevated tank;
10-Chemical cleaning pipe; The 11-overflow pipe.
The specific embodiment
Workflow below in conjunction with 1 pair of ceramic filter of accompanying drawing is described.
When a, work beginning, the ceramic filter plate 3 that is immersed in slip cell body 5 forms the thicker granulation mass lamination of one deck on ceramic filter plate 3 surfaces under the effect of vacuum, and filtrate arrives drainage bucket 6 by ceramic filter plate to dispensing head.Filtrate is discharged to reservoir by the discrepancy in elevation in the drainage bucket 6.
B, at dry section, filter cake 4 under vacuum action, continue the dehydration.
After c, filter cake 4 dryings, scraped by scraper, be delivered to needed place by belt feeder at discharge zone.
Ceramic filter plate 3 after d, the discharging enters the backwash district at last, enters ceramic filter plate 3 by filtrate water by dispensing head, and to ceramic filter plate 3 anti-cleanings, the particle that is blocked on the micropore is backwashed, and so far finishes a filtration cycle.
E, behind the particle packing certain hour; some particles can not be washed down by recoil; should shut down and clean this moment; adopt the ultrasonic physics cleaning and Chemical cleaning promptly starts Vltrasonic device and sour pump carries out combined cleaning to ceramic filter plate 3; make particle fully break away from ceramic filter plate, guarantee that the ceramic filter plate filter opening is unimpeded.
How the raising ceramic filter that the utility model employing is described below improves the step of filtration coefficient.
1, pulp density balance method
Show that by test the variation of pulp density has considerable influence to ceramic filter demineralization ability, when concentration is 65% left and right sides, 1 percentage point of the every variation of pulp density, ceramic filter demineralization ability will change about 8%; Concentration is high more, and the demineralization ability is high more.
It is batch (-type) that ceramic filter advances the slurry mode, controls into slurry time and grout absorption by liquid level; The ore pulp amount stops into slurry after the high liquid level of setting, mineral pulp level advances slurry after dropping to the low level of setting again.After the ore pulp of high concentration entered cell body 5, along with after the ore deposits in the cell body 5 are constantly walked by ceramic filter plate 3 absorption, the concentration of ore pulps constantly reduced in the cell body 5, causes the demineralization ability drop.
Therefore utilize the principle of balance, the balance of pulp density can effectively improve the filtration coefficient of ceramic filter in the maintenance ceramic filter cell body.
To ceramic filter cell body 5 liquid level parameter renegotiation new settings, make its liquid level remain on overflow situation, allow the continuous overflow of ore pulp of low concentration enter into thickening pond, high concentration ore pulp after concentrating enters ceramic filter cell body 5 again, the circulatory system that the overflow of formation low concentration, high concentration enter, to keep ceramic filter cell body 5 concentration, improve filtration coefficients of ceramic filter.
As shown in Figure 1, can carry out overflow by connecing overflow pipe 11 in cell body overflow liquid level.
2, ceramic wafer decay control
Decay in the decay in the ceramic wafer cleaning frequency, ceramic wafer life cycle is the main aspect of ceramic wafer decay, also is the central factor that filtration coefficients of ceramic filter descends.Use the attenuation law and the influence factor of ceramic wafer, the damped cycle of control ceramic wafer, to slow down the rate of decay be to improve the key and the core of filtration coefficients of ceramic filter.
(1), seeks scavenging period and the cycle that is fit to
Determine that by continuous test back will be decided to be 7 hours the cleaning frequency, the every work of ceramic filter was cleaned 1 time after 7 hours; Each scavenging period is decided to be 1 hour.Wherein clean and adopt nitric acid and ultrasonic wave to carry out.
(2), improve recoil water water quality, prevent that the ceramic wafer inner counter is stifled
Recoil water is all used filtrate water, guarantees that simultaneously filtrate water water quality is not contaminated.Since filtrate water is an ore pulp by ceramic wafer filter after, solid is separated with liquid, liquid by ceramic wafer internal cavity and extract by vacuum tube that the back forms out, therefore, recoil adopts filtrate water can save cost, and environmental protection more.
(3), improve recoil water hydraulic pressure, delay the decay in the cleaning frequency
Ceramic wafer recoil water hydraulic pressure deficiency will cause rerunning in the process after the ceramic filter cleaning, every rotation 1 circle of ceramic wafer, and tamper can not cause work period inner filtration coefficient downward trend to be accelerated in time from ceramic wafer inside and surface removing.The recoil water system is transformed, considered the voltage endurance capability of ceramic wafer, the water hydraulic pressure that will recoil is brought up to 1.0-1.2kgf by 0.8kgf, preferred 1.2kgf.
Claims (1)
1, a kind of ceramic filter that improves filtration coefficient, it is characterized in that: comprise ceramic filter cell body (5) and thickening pond, described ceramic filter cell body (5) the overflow liquid level be provided with overflow pipe (11) with the overflow of low concentration ore pulp to thickening pond, it is characterized in that: also exist another passage that the high concentration ore pulp is introduced cell body again by thickening pond between described ceramic filter cell body (5) and the described thickening pond, the circulatory system that the overflow of formation low concentration, high concentration enter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201476715U CN201415083Y (en) | 2009-04-14 | 2009-04-14 | Ceramic filter capable of enhancing filtering coefficients |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201476715U CN201415083Y (en) | 2009-04-14 | 2009-04-14 | Ceramic filter capable of enhancing filtering coefficients |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201415083Y true CN201415083Y (en) | 2010-03-03 |
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ID=41791493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201476715U Expired - Lifetime CN201415083Y (en) | 2009-04-14 | 2009-04-14 | Ceramic filter capable of enhancing filtering coefficients |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201415083Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102614706A (en) * | 2012-04-06 | 2012-08-01 | 瓮福（集团）有限责任公司 | On-line cleaning device of calcium carbonate filter cloth and cleaning method |
| CN103432813A (en) * | 2013-08-06 | 2013-12-11 | 云南大红山管道有限公司 | Reverse cleaning system and reverse cleaning method of ceramic filter in iron ore dehydration |
-
2009
- 2009-04-14 CN CN2009201476715U patent/CN201415083Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102614706A (en) * | 2012-04-06 | 2012-08-01 | 瓮福（集团）有限责任公司 | On-line cleaning device of calcium carbonate filter cloth and cleaning method |
| CN102614706B (en) * | 2012-04-06 | 2014-04-02 | 瓮福（集团）有限责任公司 | On-line cleaning device of calcium carbonate filter cloth and cleaning method |
| CN103432813A (en) * | 2013-08-06 | 2013-12-11 | 云南大红山管道有限公司 | Reverse cleaning system and reverse cleaning method of ceramic filter in iron ore dehydration |
| CN103432813B (en) * | 2013-08-06 | 2015-08-19 | 云南大红山管道有限公司 | The back cleaning system of ceramic filter and anti-cleaning method in a kind of iron ore dehydration |
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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: 20100303 |
|
| CX01 | Expiry of patent term |