CN107008050B - Filter cloth formula disc hydroextractor distributor head function transfer device - Google Patents
Filter cloth formula disc hydroextractor distributor head function transfer device Download PDFInfo
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- CN107008050B CN107008050B CN201710392195.2A CN201710392195A CN107008050B CN 107008050 B CN107008050 B CN 107008050B CN 201710392195 A CN201710392195 A CN 201710392195A CN 107008050 B CN107008050 B CN 107008050B
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- distribution head
- transmission device
- distributor head
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- 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
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- 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
- B01D33/80—Accessories
- B01D33/82—Means for pressure distribution
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/20—Pressure-related systems for filters
- B01D2201/204—Systems for applying vacuum to filters
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Abstract
The invention discloses a filter cloth type disc dehydrator distributor head function transmission device, wherein a through hole is formed in the center of a distributor head fixing part, a rotating shaft penetrates through the through hole to be matched with a bearing arranged in a bearing seat on a machine body frame, a distributor head function transmission device is arranged between the distributor head fixing part and the bearing seat, a central shaft hole of the distributor head function transmission device penetrates through the rotating shaft, one end of the distributor head function transmission device is connected with the distributor head fixing part, cavities which are mutually spaced are arranged corresponding to a distributor head function area, and four branch pipes which are connected with the function area are connected with the surface of the distributor head function transmission device in a direction vertical to the rotating shaft and correspond to the cavities of the respective function areas. The efficiency of the vacuum pump is improved by at least 35 percent; the mechanism is not huge any more, the cost is reduced obviously, the reliability is high, and the maintenance is simple; the remarkable improvement of the vacuum degree can greatly improve the application prospect in coal dressing and dehydration of various slags except for the disc dehydrator of the wet flue gas desulfurization device of the thermal power plant.
Description
Technical Field
The invention relates to a filter cloth type disc dehydrator, in particular to a function transfer device for a distribution head of the filter cloth type disc dehydrator.
Background
The disc dehydrator is a more efficient and energy-saving dehydration equipment, the disc dehydrator mainly comprises three types, namely a vacuum belt dehydrator, a ceramic disc dehydrator and a filter cloth disc dehydrator, according to the comparison of performances, a medium difficult to dehydrate almost does not use the vacuum belt dehydrator, and most of the media are the ceramic disc dehydrator and the filter cloth disc dehydrator, and the ceramic disc dehydrator needs to be stopped for cleaning every 8 hours, so the disc dehydrator cannot be used in many continuous production fields, the screening efficiency is only 1/3 of that of the filter cloth disc dehydrator, the maintenance cost is 3 times of that of the filter cloth dehydrator, the cleaning medium is complex and quick to lose efficacy, and therefore, the filter cloth type disc dehydrator is more widely applied.
The working process of the cloth filtering type disc dehydrator comprises the following steps: absorbing slurry, filtering, drying, discharging and back flushing. The spin dryer discs are arranged around the circumference of the main shaft, the main shaft rotating discs are immersed in slurry, and because the gaps of the discs are compact, only water can pass through the discs during vacuum pumping, and air and mineral particles cannot pass through the discs, so that the particles are separated from water.
The filter cloth type disc dehydrator is driven by a speed reducer and gear transmission, so that the filter fans rotate at a certain rotating speed in a groove body filled with ore pulp, when one filter fan of the filter disc is positioned in a filter adsorption area, pressure difference is formed on two sides of a filter medium under the action of a vacuum pump, solid materials are adsorbed on the filter medium (filter cloth) to form a filter cake, and filtrate is discharged through a filtrate pipe and a distribution head. When the filter fan is separated from the pulp liquid level and enters the dewatering area, the water is continuously separated from the filter cake under the action of the vacuum suction force of the filter cake, and the filter cake is further discharged from the filter liquor pipe and the distribution head, so that the filter cake is dried. The water discharged in the above process enters a high-difference liquid discharging system or a zero-position liquid discharging system to realize the automatic discharge of the filtrate.
As shown in fig. 1, the dispensing head comprises two main parts: a rotating member and a stationary member. The rotating member has 12 channels distributed to each row of sector plates. The fixed part is provided with four shunting channels which respectively control the vacuum tube, the drying tube, the loose discharging tube and the back flushing tube to the sector surfaces of the related row areas. The two components are pressed together by spring force (or other form of pretension). Along with the rotation of the main shaft disc, each hole of the movable head is communicated with the static head sub-tank and is switched to finish 4 processes of slurry suction filtration, drying, discharging and back washing, and the distribution head is a link and a bridge of the whole disc dehydrator.
The inventor finds in research that there are 3 major problems with existing dispensing head structure designs.
1. Because the existing distribution head structure is flat in design, the branch connecting pipes and the back blowing resistance of each functional area are large (especially, the resistance of the extracted substance which is a gas-liquid mixture is larger). The vacuum pressure drop reaches 0.0375MPa, the vacuum degree of the water-ring vacuum pump reaches-0.095 MPa at present, namely 39.4% of the water-ring vacuum pump works inefficiently, so that the working efficiency of the distribution head structure is reduced by 19%.
2. The blind plate design in the existing distribution head structure leads the distribution head to be only arranged with the end head of the central shaft, and as the requirement of vacuum suction capacity is increased, the pipe diameter of the vacuum branch pipe is thickened, the vacuum branch pipe is internally arranged, the central shaft is integrally thickened, the processing is difficult, and the cost is increased; based on the reasons and the problems that the built-in vacuum branch pipe is not easy to find after leakage occurs, and the like, the vacuum branch pipe is arranged externally in the prior art, but is still limited by the blind plate type design of the distribution head, the main shaft is not thickened, but the specification of a bearing is still increased, the bearing seat is also increased, the cost is increased, and the installation is difficult.
3. To the great hydroextractor of filter area, generally all adopt the double-end to arrange the adsorption region for improving hydroextractor adsorption efficiency and handling capacity, the double-end is arranged and is directly leaded to directly that actuating system can't be directly connected with the hub connection in the current distribution head structure, needs link to each other with actuating system through modes such as big or small ring gear, chain, causes system architecture complicacy, and the installation accuracy requires highly, leads to the equipment trouble to be many.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a function transfer device for a distribution head of a filter cloth type disc dehydrator.
In order to achieve the purpose, the technical means adopted by the invention is as follows: a filter cloth type functional transmission device for a distribution head of a disc dehydrator is characterized in that a through hole is formed in the center of a distribution head fixing part, a rotating shaft penetrates through the through hole to be matched with a bearing in a bearing seat arranged on a machine body frame, a distribution head functional transmission device is arranged between the distribution head fixing part and the bearing seat, a central shaft hole of the distribution head functional transmission device penetrates through the rotating shaft, one end of the distribution head functional transmission device is connected with the distribution head fixing part and is provided with cavities which are mutually spaced corresponding to distribution head functional areas, and four branch pipes of a connection functional area are connected with the surface of the distribution head functional transmission device in a direction perpendicular to the rotating shaft and correspond to the cavities of the respective functional areas.
Furthermore, in the four branch pipes of the functional area, the sectional area of the pipeline of the slurry suction filtering branch pipe is larger than the total area of the arc-shaped adsorption holes; the sectional area of the connecting branch pipe pipeline in the drying functional area is larger than the total area of the corresponding arc-shaped adsorption holes, so that the adsorption efficiency is improved to the maximum.
Furthermore, the radius of the functional transmission device of the distribution head is equal to the radius of the distribution head.
Furthermore, the thickness of the functional transmission device of the distribution head is larger than that of the fixing part of the distribution head.
The invention has the beneficial effects that: 1. due to the addition of the distribution head function transmission device, the vacuum produced by the vacuum pump can be more applied to the dehydration function of the disc dehydrator, the efficiency of the vacuum pump is improved, and the efficiency is conservatively calculated and is at least improved by more than 35%. 2. The center of the fixed part is provided with the through hole, so that a strange ring of the main shaft of the disc dehydrator, which is enlarged along with the enlargement of the distribution head, is eliminated, the mechanism is not too large, the cost is obviously reduced, the reliability is high, and the maintenance is simple. 3. The vacuum degree is obviously improved, so that the adaptability of the disc filter cloth dehydrator is wider, various slurry is basically suitable, and even the development of sludge dehydration becomes possible. Besides a disc dehydrator of a wet flue gas desulfurization device of a thermal power plant, the application prospect in coal dressing and dehydration of various slags is greatly improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic diagram of a prior art structure;
FIG. 2 is a schematic structural diagram of the present invention.
In the figure: 1. the distribution head comprises a distribution head fixing part 2, a rotating shaft 3, a distribution head function transmission device 4 and a four-way branch pipe.
Detailed Description
As shown in figure 2, a filter cloth type disc dehydrator distributor head function transfer device, a through hole is formed in the center of a distributor head fixing part 1, a rotating shaft 2 penetrates through the through hole to be matched with a bearing arranged in a bearing seat on a machine body frame, a distributor head function transmission device 3 is arranged between the distributor head fixing part 1 and the bearing seat, a shaft hole formed in the center of the distributor head function transmission device 3 penetrates through the rotating shaft 2, one end of the distributor head function transmission device 3 is connected with the distributor head fixing part 1 and is provided with mutually spaced cavities corresponding to a distributor head function area, and four branch pipes 4 of a connecting function area are connected with the surface of the distributor head function transmission device 3 in the direction perpendicular to the rotating shaft 2 and correspond to the cavities of the respective function area.
In the four branch pipes 4 of the functional area, the sectional area of the pipeline of the slurry suction and filtration branch pipe is larger than the total area of the arc-shaped adsorption holes; the sectional area of the pipeline of the connecting branch pipe in the drying functional area is larger than the total area of the corresponding arc-shaped adsorption holes, so that the adsorption efficiency is improved to the maximum.
The reason why this structure is not limited to a dead space but is limited to an area is that the shape of the corresponding four-way branch pipe in the distribution head function transmission device can be diversified, but the above-mentioned limitation must be observed, so that the improvement of the adsorption efficiency can be maximized.
The radius of the distribution head functional transmission device 3 is equal to the radius of the distribution head.
The thickness of the functional transmission device 3 of the distributing head is larger than that of the fixing part 1 of the distributing head.
After practical verification, the inventor finds that the arrangement of the structure can greatly change the problems existing in the prior art, and particularly, the following data analysis is carried out:
1. through setting up distribution head function transmission, with reason connection cavity structures and volume change for when the hydroextractor inhales thick liquid and filters, dry functional area execution action, avoid because of the hindrance that structural problem brought the functional area function realization, the function execution is more direct, effective. The vacuum pressure drop from the vacuum pump to the gas-liquid separator and then to the distributing head formally enters the working area is less than or equal to 0.01Mpa, when the vacuum degree of the water ring vacuum pump is-0.095 Mpa, the vacuum degree of the distributing head is more than or equal to-0.085 Mpa, and the vacuum degree from the vacuum pump to the distributing head through the gas-liquid separator and then can reach-0.086 Mpa, thereby thoroughly changing the problem of the vacuum degree in the prior art.
2. Through setting up distribution head function transmission, changed and connected cavity structure for big type disc hydroextractor drive mode is changed by gear (chain) connection structure into directly connecting the structure, reaches reduce cost, simple structure, maintains light purpose.
3. Through setting up distribution head function transmission, changed and connected cavity structure for bear the weight of the rotation system and return to the heart of the beginning, no longer because of all kinds of limitations compel increase the specification, reached reduce cost, structural optimization, maintain light purpose.
The inner part of the distribution head function transmission device connecting cavity is in streamline design, gas-liquid flow resistance is reduced to the minimum, gas-liquid mixture in the corresponding filter disc vacuum branch pipe smoothly flows out, a support bearing is not arranged at the position of the distribution head, the distribution head penetrates through the axial center cylinder and is arranged close to the axial center cylinder, a small reserved space is reserved for a bearing chamber, and meanwhile a driving direct connection mechanism can be arranged.
The distribution head function transmission device is used for fixing the distribution head and transmitting the functions of the four functional areas of pulp absorption, filtration, drying, discharging and back washing, which are executed by the distribution head. The first step of slurry absorption and filtration area corresponds to a branch to go to a vacuum tank or a gas-liquid separator, when the adsorption disk is immersed in slurry, the adsorption disk has higher negative pressure because a vacuum system is connected, and the slurry is adsorbed on the disk; the second step, the drying area is communicated with a branch to the vacuum tank, when the adsorption disc full of the slurry leaves the slurry, the adsorption disc with higher negative pressure continuously adsorbs the water contained in the slurry on the adsorption disc, and the water content of the slurry is rapidly reduced; thirdly, the discharging area corresponds to a branch to go to a compressed air tank, the slurry of the adsorption disc is only not more than 15% as the main shaft rotates, the slurry starts to be dried, the compressed air blows, the dehydrated material is separated from the adsorption disc, part of the dehydrated material falls off, and the un-fallen material is shoveled by a scraper; and fourthly, the washing area is communicated with washing water corresponding to one branch, and after the adsorption disc is washed, the adsorption disc has the capability of adsorbing the slurry again and enters the next circulation process.
The embodiments of the present application are only used for illustrating the technical features disclosed in the present application, and the changes made by those skilled in the art through simple replacement still belong to the protection scope of the present application.
Claims (4)
1. The utility model provides a filter cloth formula disc hydroextractor distributor head function transfer device which characterized in that: a through hole is formed in the center of a distribution head fixing part, a rotating shaft penetrates through the through hole to be matched with a bearing in a bearing seat arranged on a machine body frame, a distribution head function transmission device is arranged between the distribution head fixing part and the bearing seat, a central shaft hole of the distribution head function transmission device penetrates through the rotating shaft, one end of the distribution head function transmission device is connected with the distribution head fixing part and is provided with cavities which are mutually spaced corresponding to distribution head function areas, and four branch pipes connecting the function areas are connected with the surface of the distribution head function transmission device in a direction vertical to the rotating shaft and correspond to the cavities of the respective function areas; the distribution head function transmission device is used for fixing the distribution head and transmitting the functions of the four functional areas of pulp absorption, filtration, drying, discharging and back washing, which are executed by the distribution head.
2. The cloth-filter disc dehydrator distributor head function transfer device of claim 1, wherein: in the four branch pipes of the functional area, the sectional area of the pipeline of the slurry suction and filtration branch pipe is larger than the total area of the arc-shaped adsorption holes; the sectional area of the connecting branch pipe pipeline in the drying functional area is larger than the total area of the corresponding arc-shaped adsorption holes, so that the adsorption efficiency is improved to the maximum.
3. The cloth-filter disc dehydrator distributor head function transfer apparatus of claim 2, wherein: the radius of the distribution head functional transmission device is equal to the radius of the distribution head.
4. A cloth-filter disc dehydrator distributor head function transfer apparatus as claimed in claim 3 wherein: the thickness of the distribution head functional transmission device is larger than that of the distribution head fixing part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710392195.2A CN107008050B (en) | 2017-05-27 | 2017-05-27 | Filter cloth formula disc hydroextractor distributor head function transfer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710392195.2A CN107008050B (en) | 2017-05-27 | 2017-05-27 | Filter cloth formula disc hydroextractor distributor head function transfer device |
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| Publication Number | Publication Date |
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| CN107008050A CN107008050A (en) | 2017-08-04 |
| CN107008050B true CN107008050B (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710392195.2A Active CN107008050B (en) | 2017-05-27 | 2017-05-27 | Filter cloth formula disc hydroextractor distributor head function transfer device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE402709C (en) * | 1922-09-28 | 1924-09-19 | Paul Bodenstein | Fixed control head for multi-cell, rotatable drum filters |
| CN102527135A (en) * | 2012-03-29 | 2012-07-04 | 鞍山市嘉丰工业泵厂 | Disc vacuum filter with independent adsorption system and independent dewatering system |
| CN105833598A (en) * | 2016-06-15 | 2016-08-10 | 安徽华电宿州发电有限公司 | Distributing head of disk dewatering machine |
| CN205613136U (en) * | 2016-05-06 | 2016-10-05 | 无锡市同至人机械设备制造有限公司 | Distributor who bleeds and admit air of disc filter cloth hydroextractor |
| CN206777993U (en) * | 2017-05-27 | 2017-12-22 | 安徽华电宿州发电有限公司 | A kind of filter cloth formula disk dewatering machine distributes camera function transfer device |
-
2017
- 2017-05-27 CN CN201710392195.2A patent/CN107008050B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE402709C (en) * | 1922-09-28 | 1924-09-19 | Paul Bodenstein | Fixed control head for multi-cell, rotatable drum filters |
| CN102527135A (en) * | 2012-03-29 | 2012-07-04 | 鞍山市嘉丰工业泵厂 | Disc vacuum filter with independent adsorption system and independent dewatering system |
| CN205613136U (en) * | 2016-05-06 | 2016-10-05 | 无锡市同至人机械设备制造有限公司 | Distributor who bleeds and admit air of disc filter cloth hydroextractor |
| CN105833598A (en) * | 2016-06-15 | 2016-08-10 | 安徽华电宿州发电有限公司 | Distributing head of disk dewatering machine |
| CN206777993U (en) * | 2017-05-27 | 2017-12-22 | 安徽华电宿州发电有限公司 | A kind of filter cloth formula disk dewatering machine distributes camera function transfer device |
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| CN107008050A (en) | 2017-08-04 |
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