CN2650846Y - Gas-liquid distributing disc of ceramic filter for improved concentrate dehydration - Google Patents
Gas-liquid distributing disc of ceramic filter for improved concentrate dehydration Download PDFInfo
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- CN2650846Y CN2650846Y CN 200320110654 CN200320110654U CN2650846Y CN 2650846 Y CN2650846 Y CN 2650846Y CN 200320110654 CN200320110654 CN 200320110654 CN 200320110654 U CN200320110654 U CN 200320110654U CN 2650846 Y CN2650846 Y CN 2650846Y
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- filter
- dehydration
- pulp
- gas
- pulp absorption
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Abstract
The utility model relates to an improved ceramic filter for dehydration of finished ore, in particular to a gas/liquid distribution disk on a filter for dehydration, which is characterized in: the arc tank for pulp absorption at one side of the adjacent back flushing arc tank is shortened a bit to make it an enclosed space. Since the pulp absorption arc length in the pulp absorption is shortened, the liquid will not enter into the pulp absorption section immediately after the filter plate is back flushed; instead, the liquid will enter into an enclosed space; the utility model can be used in low air pressure regions, and is helpful to reduce filter cake thickness and improve dehydration capability, so as to meet the challenge of filtering filter cakes with lower moisture content; if the rotation speed is reduced appropriately, a pulp absorption layer in similar thickness to the original pulp absorption layer can be obtained, and the dehydration and drying time can be prolonged appropriately, so as to obtain filter cakes with lower moisture content. The shorter pulp absorption section is helpful to reduce filter cake thickness for ore pulp with high dewatering capability, and can avoid damage to the filter under heavy mechanical load.
Description
Technical field
Utility model is about to the improvement of essence mine dehydration with ceramic filter, relates in particular to filter dehydration gas-liquid distribution plate.
Background technology
The dry ceramic filter of using of essence mine dehydration, as the CERAMEC filter of applicant's product, Outokumpu OYJ and Chinese patent 99203291 disclosed ceramic filter gas-liquid distributors etc., filter gas-liquid distribution plate, all are the groove segmental arcs that do not wait by three sections arc length that on card, are provided with, card is divided into four workspaces, ceramic filter plate is rotated a circle in pulp tank, finish successively inhale starch, dehydrate, filter cake discharging, four processes of backwash.Usually in hyperbar area, Plain, ambient atmosphere pressure and vacuumize bigger pressure reduction is arranged between negative pressure, thereby show stronger water separation capability, so finish in the backwash stage, enter immediately and inhale the slurry stage, to obtain more suction time, form thicker material adhesion layer, increase dehydrated material output.And in the high altitude localities, because ambient atmosphere pressure is low than the plains region, it only is about 80% of plains region, dehydration pressure reduction is little than hyperbar area, Plain relatively, thereby the motive force of material dewatering is also diminished relatively, and the filter plate water separation capability reduces, make dewatered cake moisture increase, dehydration back mineral filter cake moisture is generally all above 12.5%, and is high even reach 13.5%, is difficult to satisfy dewatered cake and enters smelting moisture and need be lower than 11.5% requirement.Be higher than 12.5% and work as dewatered cake moisture, roasting dehydration in advance then just can be sent into smelting furnace and smelt, and causes the rising of concentrate cost, and it is not ideal enough that therefore existing ceramic filter gas-liquid distribution plate uses dehydrating effect in the high altitude localities.Secondly, the ore pulp strong to hydrophobic ability, this kind gas-liquid distribution plate also can cause inhales slurry too much, increases the filter load, causes the infringement to filter, influences the operate as normal of filter.
Summary of the invention
The purpose of utility model is to overcome the deficiency of above-mentioned prior art, a kind of improved strong pulp dewatering of hydrophobic ability that both can adapt to is provided, can still can keep higher dehydration power at hypobaric high source area again, the essence mine dehydration that dewatered cake moisture is low ceramic filter gas-liquid distribution plate.
The utility model purpose realizes, the main pulp absorbing area that is near the recoil district that improves shortens, change the pulp absorbing area that shortens into the airproof district of holding one's breath, do not enter immediately after the filter recoil is finished and inhale the slurry stage, but through the district of holding one's breath, distribute (reduce and filter pottery plate pulp absorbing area angle) by the minimizing suction time,, reach and reduce the filter load with the low moisture filter cake that abundant increase drying capacity acquisition meets the demands.Specifically, utility model essence mine dehydration ceramic filter gas-liquid distribution plate, be included in suction slurry concave arc groove, dehydration concave arc groove, the district of holding one's breath (shovel is scraped the blanking section) and the backflushing concave-arc groove of circumference on the card with the adjacent arrangement of radius, it is characterized in that the suction slurry concave arc groove that will abut backflushing concave-arc groove end shortens one section, makes it to become the airproof district of holding one's breath.
According to the distribution of China's geographical environment and mine in Different Altitude Regions, the said backflushing concave-arc groove of utility model and inhale the stuffiness of setting up between the slurry concave arc groove district's angle of holding one's breath and be suitably 15-45 °.After utility model shortens pulp absorbing area, for guaranteeing that required suction slurry thickness is arranged, can be by suitably reducing rotating speed, the pulp absorbing area of shortening still can be suctioned and original thickness ore pulp layer thickness about equally, yet rotating speed reduces the drying time that has then prolonged dry section relatively, helps the abundant discharge of moisture equally, the low moisture filter cake that can obtain to meet the demands, according to different altitude height, utility model filter rotating speed can slow down about about 15-50% more originally.
Utility model ceramic filter gas-liquid distribution plate, inhale the slurry arc length owing to reduced pulp absorbing area, do not enter immediately after the filter recoil is finished and inhale the slurry stage, but through the district of holding one's breath, use in high source low pressure area, filter cake attenuate water separation capability is enhanced, the low moisture filter cake that can obtain to meet the demands; Suitably reduce rotating speed, then can obtain and the original roughly near pulp absorbing layer of thickness, and the time that dehydrates prolongs relatively, the low moisture filter cake that can obtain to meet the demands equally.Pulp absorbing area shortens simultaneously, and for the stronger ore pulp of hydrophobic ability, short pulp absorbing area helps reducing filter cake thickness, can avoid the overweight infringement that causes filter of mechanical load.
A kind of distribution plate of patent and prior art distribution plate comparison sheet
| Service cycle | Shovel is scraped the stage | Drying stage | Inhale the slurry stage | The district feels suffocated | The recoil stage | Mineral material moisture | |
| Contrast | 45 seconds | 4 seconds | 21 seconds | 13 seconds | 0 second | 4 seconds | 13.2 |
| Patent | 60 seconds | 5 seconds | 30 seconds | 13 seconds | 5 seconds | 5 seconds | 11.2 |
Below in conjunction with a specific embodiment, further specify the utility model structure.
Description of drawings
Fig. 1 is a prior art filter gas-liquid distribution plate structural representation.
Fig. 2 is a utility model filter gas-liquid distribution plate structural representation.
The specific embodiment
Embodiment: referring to Fig. 2, utility model filter gas-liquid distribution plate, surperficial circumference is with adjacent short suction slurry concave arc groove 2, dehydration concave arc groove 3, hold one's breath district 4, backflushing concave-arc groove 5 and the district 6 of holding one's breath of being arranged with of radius.Card is divided into pulp absorbing area a, dehydrates district b, shovel is scraped blanking district c, and backwash district e does not inhale and starches the district f that holds one's breath.Filter rotation when circumferential arrangement, be immersed into the part filter in the pulp tank, because inhaling slurry concave arc groove with distribution plate connects, the negative pressure suction begins to inhale slurry, when this part filter produces mineral syrup liquid M, because of continuing to connect to enter, negative pressure dehydrates district's dehydration, rotate into shovel and scrape the blanking district, filter cake after dehydrating, then scrape and come off by scraper d shovel, filter cake come off the back because of with the conducting of backflushing concave-arc groove, filter plate is carried out backwash, backwash finishes to change next process over to behind the district of holding one's breath and inhales slurry, week and back and forth finishing pulp dewatering.
Claims (3)
1, a kind of essence mine dehydration ceramic filter gas-liquid distribution plate, be included in suction slurry concave arc groove, dehydration concave arc groove, hold one's breath district and the backflushing concave-arc groove of circumference on the card with the adjacent arrangement of radius, it is characterized in that the suction slurry concave arc groove that will abut backflushing concave-arc groove end shortens one section, makes it to become the airproof district of holding one's breath.
2,, it is characterized in that the said district of holding one's breath is for 15-45 ° according to the described essence mine dehydration of claim 1 ceramic filter gas-liquid distribution plate.
3,, it is characterized in that the said gas-liquid distribution plate rotating speed 15-50% that slows down according to claim 1 or 2 described essence mine dehydration ceramic filter gas-liquid distribution plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320110654 CN2650846Y (en) | 2003-10-31 | 2003-10-31 | Gas-liquid distributing disc of ceramic filter for improved concentrate dehydration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320110654 CN2650846Y (en) | 2003-10-31 | 2003-10-31 | Gas-liquid distributing disc of ceramic filter for improved concentrate dehydration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2650846Y true CN2650846Y (en) | 2004-10-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320110654 Expired - Fee Related CN2650846Y (en) | 2003-10-31 | 2003-10-31 | Gas-liquid distributing disc of ceramic filter for improved concentrate dehydration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2650846Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103520989A (en) * | 2013-10-31 | 2014-01-22 | 北方重工集团有限公司 | Air distributing device for vacuum filter |
| CN104548722A (en) * | 2014-12-30 | 2015-04-29 | 安徽铜冠机械股份有限公司 | Distributor for ceramic filter |
| CN112403088A (en) * | 2020-12-17 | 2021-02-26 | 辽宁五寰特种材料与智能装备产业技术研究院有限公司 | Novel double-vacuum disc type filter |
| CN114653125A (en) * | 2021-04-07 | 2022-06-24 | 山东孚德环保有限公司 | Ceramic filter |
-
2003
- 2003-10-31 CN CN 200320110654 patent/CN2650846Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103520989A (en) * | 2013-10-31 | 2014-01-22 | 北方重工集团有限公司 | Air distributing device for vacuum filter |
| CN104548722A (en) * | 2014-12-30 | 2015-04-29 | 安徽铜冠机械股份有限公司 | Distributor for ceramic filter |
| CN112403088A (en) * | 2020-12-17 | 2021-02-26 | 辽宁五寰特种材料与智能装备产业技术研究院有限公司 | Novel double-vacuum disc type filter |
| CN114653125A (en) * | 2021-04-07 | 2022-06-24 | 山东孚德环保有限公司 | Ceramic filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041027 Termination date: 20091130 |