CN209940820U - Electroosmosis sludge dewatering device - Google Patents
Electroosmosis sludge dewatering device Download PDFInfo
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- CN209940820U CN209940820U CN201920552550.2U CN201920552550U CN209940820U CN 209940820 U CN209940820 U CN 209940820U CN 201920552550 U CN201920552550 U CN 201920552550U CN 209940820 U CN209940820 U CN 209940820U
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Abstract
The utility model discloses an electroosmosis sludge dewatering device, including last annular link joint track, lower annular link joint track, its characterized in that: the upper annular track and the lower annular track are respectively arranged at the end parts of the chain plates of the upper annular chain plate crawler and the anode lower annular chain plate crawler and are used for supporting the chain plates and limiting the running tracks of the upper annular chain plate crawler and the lower annular chain plate crawler; the opposite part of the upper annular chain plate crawler and the lower annular chain plate crawler is divided into a pre-pressing area, a dewatering area and a pressure relief area; and the distance between the upper annular chain plate crawler and the lower annular chain plate crawler is gradually reduced from the pre-pressing area to the tail end of the dewatering area, and the distance between the upper annular chain plate crawler and the lower annular chain plate crawler is gradually increased from the tail end of the dewatering area to the pressure relief area. Adopt the utility model discloses such structure has guaranteed that mud gets into the stability of dehydration district volume, is favorable to improving the treatment effeciency of mud, simple structure, reasonable in design moreover.
Description
Technical Field
The utility model belongs to the technical field of the environmental protection is equipped, more specifically says, relates to an electroosmosis sludge dewatering device.
Background
A sewage treatment plant can generate a large amount of sludge in the purification process of domestic sewage, enterprise production sewage and the like, and the sludge needs to be dehydrated to reduce the moisture of the sludge. Sludge dewatering is the most important step in the subsequent treatment of sludge. In the prior art, part of free water can be removed only by a physical concentration mode, and the water content of the treated sludge is basically kept at about 80 percent. If the electroosmosis dehydration method is used, the water content of the sludge can be 50-60 percent, and the subsequent cost of sludge treatment can be greatly reduced.
Because of the characteristics of the sludge, the volume of the sludge is large because the water content is very high before the dehydration treatment, and the volume of the sludge is gradually reduced in the dehydration treatment process, and after the volume of the sludge is reduced, the sludge is not in close contact with a cathode plate and an anode plate, so that the sludge is not ideal in the aspect of the efficiency of the dehydration treatment.
Disclosure of Invention
1. Problems to be solved
The problem of the efficiency of electroosmosis dehydration to exist among the prior art ideal inadequately, the utility model provides an electroosmosis sludge dewatering device.
2. Technical scheme
In order to solve the above problem, the utility model discloses the technical scheme who adopts as follows: an electroosmosis sludge dewatering device comprises an upper annular chain plate crawler belt, a lower annular chain plate crawler belt, an upper annular rail and a lower annular rail, wherein the upper annular rail and the lower annular rail are respectively arranged at the end parts of chain plates of the upper annular chain plate crawler belt and the anode lower annular chain plate crawler belt and are used for supporting the chain plates and limiting the running tracks of the upper annular chain plate crawler belt and the lower annular chain plate crawler belt; the opposite part of the upper annular chain plate crawler and the lower annular chain plate crawler is divided into a pre-pressing area, a dewatering area and a pressure relief area; and the distance between the upper annular chain plate crawler and the lower annular chain plate crawler is gradually reduced from the pre-pressing area to the tail end of the dewatering area, and the distance between the upper annular chain plate crawler and the lower annular chain plate crawler is gradually increased from the tail end of the dewatering area to the pressure relief area.
Because of the characteristics of the sludge, when the sludge is not dewatered, the water content is high, the volume is large, and in order to ensure the stability of the volume when the sludge enters the dewatering zone and improve the efficiency of the dewatering treatment, the width of the pre-pressing zone is set to be wider than that of the dewatering zone, and the change of the width is gradually narrowed from the inlet of the pre-pressing zone. After getting into the dehydration district, along with going on of dehydration work, the volume of mud diminishes gradually, correspondingly, the utility model discloses corresponding design has also been carried out to the width in dehydration district, the utility model provides a dehydration district divide into the three, is low-pressure region, well nip and high-pressure area respectively, from low-pressure region to high-pressure area, and the width in whole dehydration district continues to be the form that narrows down gradually, and this and mud are agreeable with mutually at the in-process volume that dewaters and diminish the form that diminishes. When the sludge is discharged from the dewatering area, and the width of the sludge is designed to be gradually widened from the joint of the sludge and the high-pressure area of the dewatering area, so that the sludge is discharged conveniently.
Furthermore, one ends of the upper annular chain plate crawler and the lower annular chain plate crawler, which are close to the pressure relief area, are respectively provided with a section of linear area, and the linear areas are respectively provided with a mud scraping device. The mud scraping device is used for cleaning the cathode annular chain plate crawler belt and the anode annular chain plate crawler belt, and the sludge treatment efficiency is improved.
Further, the mud scraping device comprises a mud scraping frame, and a plurality of mud scraping plates are uniformly arranged on the circumferential direction of the mud scraping frame.
Further, the mud scraping means provided at the straight region of the upper endless link belt track is a brush or a single mud scraper. Since the sludge on the upper endless-link track is already very dry and loose, the upper endless-link track can be cleaned relatively thoroughly by the brush or a single scraper against the straight area of the upper endless-link track.
Further, the upper width of the lower endless link belt track is parallel to the horizontal plane.
Further, the device also comprises a feeding device, and an outlet of the feeding device is close to an inlet of the pre-pressing area. And the sludge is poured onto a track of the cathode annular chain plate from the feeding device, enters a pre-pressing area and is treated.
Further, a washing device is arranged on the lower edge of the lower annular chain plate crawler belt. The washing device washes the cathode treatment zone with an external high-pressure water supply.
Further, washing unit includes from the top washing unit down and from the washing unit up down, from the top washing unit down sets up between the upper and lower width of annular link joint track down, from the bottom washing unit up sets up the below of the lower width of annular link joint track down. The arrangement of the double flushing device can obtain better flushing effect.
Further, a water receiving disc or a water receiving groove is arranged below the lower annular chain plate crawler. The water flow generated in the process of dehydrating the sludge flows into the water receiving tray or the water receiving tank, so that the subsequent centralized treatment of the sludge is facilitated.
3. Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model designs the pre-pressing area, the dehydration area and the pressure relief area between the cathode annular chain plate track and the anode annular chain plate track according to the characteristics of the sludge in the treatment process, so that the width of the area from the pre-pressing area is gradually narrowed, and the width from the tail end of the dehydration area to the pressure relief area is widened, thereby ensuring the volume stability of the sludge entering the dehydration area and being beneficial to improving the treatment efficiency of the sludge;
(2) the utility model discloses simple structure, reasonable in design easily makes.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of the track link plate position relationship structure of the present invention;
FIG. 3 is a schematic view of a partial structure of a single scraper and an anode endless chain link track according to the present invention;
in the figure: 1-1: a frame; 2-1: a feeding device; 3-1: an anode annular chain plate crawler belt; 4-1: a cathode endless link track; 5-1: an anode drive shaft; 6-1: a cathode drive shaft; 7-1: a cathode mud scraping device; 7-11: a mud scraping frame; 7-12: a mud scraper; 8-1: an anode mud scraping device; 8-11: a brush; 8-12: a mud scraper; 9-1: a washing device from top to bottom; 10-1: a washing device from bottom to top; 11: a pre-pressing area; 12: a dewatering zone; 12-1: a low-pressure region; 12-2: a middle pressure area; 12-3: a high pressure region; 13: a pressure relief area; 14: a track; 15: a chain plate; 16-1: an anode electrode plate; 16-2: and a cathode electrode plate.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
As shown in figures 1 and 2, the utility model comprises a frame 1-1, an anode annular chain plate crawler 3-1, a cathode annular chain plate crawler 4-1, an anode driving shaft 5-1, a cathode driving shaft 6-1, a cathode mud scraping device 7-1, an anode mud scraping device 8-1, a washing device 9-1 from top to bottom and a washing device 10-1 from bottom to top. The anode endless chain plate crawler belt and the cathode endless chain plate crawler belt are formed by overlapping chain plates 15, and a cathode electrode plate 16-2 and an anode electrode plate 16-1 are arranged on the chain plates 15. The anode track and the cathode track are respectively arranged on two sides of the anode endless chain plate track and the cathode endless chain plate track, namely two ends of the chain plate 15, and support the chain plates of the anode endless chain plate track and the cathode endless chain plate track to limit the running tracks of the anode endless chain plate track and the cathode endless chain plate track. The cathode track, the anode track, the cathode annular chain plate crawler belt and the anode annular chain plate crawler belt are arranged on the frame 1-1. The anode endless link belt crawler shown in fig. 1 is an upper endless link belt crawler, the cathode endless link belt crawler is a lower endless link belt crawler, a dehydration work area is formed between the lower side of the anode endless link belt crawler and the upper side of the cathode endless link belt crawler, the dehydration work area is divided into a pre-pressing area 11, a dehydration area 12 and a pressure relief area 13, the dehydration area 12 is divided into a low pressure area 12-1, a medium pressure area 12-2 and a high pressure area 12-3, the distance between the lower side of the anode endless link belt crawler and the upper side of the cathode endless link belt crawler gradually decreases from the pre-pressing area 11 to the end of the dehydration area 12 (the end of the high pressure area 12-3), and the distance between the lower side of the anode endless link belt crawler and the upper side of the cathode endless link belt crawler gradually increases from the end of the dehydration area 12 to the pressure relief area 13. As can be seen from fig. 1, the upper width of the cathode endless-link track is parallel to the horizontal plane. A feeding device 2-1 is arranged at a position close to the inlet of the pre-pressing area, and the sludge enters the pre-pressing area through the feeding device 2-1.
The anode annular chain plate crawler 3-1 is driven by an anode driving shaft 5-1, and the cathode annular chain plate crawler 4-1 is driven by a cathode driving shaft 6-1; the anode endless chain plate crawler 3-1 and the cathode endless chain plate crawler 4-1 are driven to rotate by gears with the same size on the same side of the shaft bodies, and chain wheels with the same size on transmission shafts of the anode endless chain plate crawler 3-1 and the cathode endless chain plate crawler 4-1 are shifted to move in the annular closed type operation tracks of the anode endless chain plate crawler 3-1 and the cathode endless chain plate crawler 4-1. The cathode endless chain link track 4-1 is positioned below the anode endless chain link track 3-1, a dehydration area 12 is formed in an area formed by the anode endless chain link track 3-1 and the cathode endless chain link track 4-1 in an opposite direction, and the linear movement speeds of the anode endless chain link track 3-1 and the cathode endless chain link track 4-1 are the same in the dehydration area 12.
The specific working process is as follows: the sludge is conveyed to the cathode annular chain plate crawler 4-1 at the lower part, moves along with the cathode annular chain plate crawler 4-1 and the anode annular chain plate crawler 3-1, and at the moment, the sludge is separated from the sludge under the action of the electrodes, and is extruded by the chain plate crawler and then discharged out of the equipment. In order to facilitate the sewage treatment after dehydration, a water receiving tank or a water receiving tray (not shown in the figure) is arranged below the lower part of the lower plate of the cathode annular chain plate crawler belt to collect the sewage.
Considering that the sludge has a large volume when entering the dewatering equipment, the pre-pressing zone 11 is designed to be a certain distance before the sludge enters the dewatering zone 12, so that the pressure for extruding the sludge is gradually increased. The feeding device 2-1 inputs the sludge into the pre-pressing area 11 at a certain speed, and the sludge is paved on the endless chain plate caterpillar band 4-1 of the cathode and enters the dehydration area 12 for dehydration operation. The two ends of the anode annular track are provided with different shapes, so that the widths of the sections of the pre-pressing zone 11, the low-pressure zone 12-1, the middle sub-zone 12-2 and the high-pressure zone 12-3 of the dewatering zone 12 are gradually reduced, and the width of the pressure relief zone 13 at the treated sludge outlet is gradually increased from the high-pressure zone 12-3. The pre-compression zone 11, the dewatering zone 12 and the pressure relief zone 13 together form the working area of the dewatering process, the other areas being non-working areas.
The reason for adopting this particular structure is analyzed as follows: before the sludge is treated, the humidity is high, and the volume is large; after the sludge is treated by the dewatering zone 12, moisture is sucked dry, the volume is reduced, in order to improve the treatment efficiency of the sludge, the amount of the sludge entering the pre-pressing zone 11 can be increased, and the purpose can be realized by expanding the width of the pre-pressing zone 11; the volume of the dewatered sludge is gradually reduced, so the width of the dewatering area 12 is gradually reduced; after the sludge treatment is finished, the sludge enters the pressure relief area 13 to be dumped, at this time, for the convenience of dumping, the width of the pressure relief area 13 is increased, the extrusion force to the sludge is reduced, and the sludge is convenient to output.
At the end part close to the pressure relief area 13, the anode annular track and the cathode annular track are respectively provided with a section of linear track area, the relative positions of the linear track areas are respectively provided with an anode mud scraping device 8-1 and a cathode mud scraping device 7-1, the cathode and the anode in the dehydration area 12 respectively provide power for the cathode and the anode through the mobile power supply devices arranged on the side surfaces, and after the dehydration operation is finished, the cathode and the anode plates are separated from the mobile power supply devices. Since the sludge near the anode side after dewatering is very dry, the sludge on the surface of the anode plate can be cleaned more thoroughly only by scraping with the anode sludge scraper 8-1, and the anode sludge scraper 8-1 can use a brush 8-11 or a single sludge scraper 8-12 as shown in fig. 3.
And because the sludge close to the cathode side is wet, the sludge can be attached to the cathode plate and moves along with the rotation of the cathode annular chain plate crawler 4-1, when the sludge moves to the linear track area of the cathode annular chain plate crawler 4-1, the sludge is scraped off by the cathode sludge scraping device 7-1, the cathode sludge scraping device 7-1 comprises a sludge scraping frame 7-11, a plurality of sludge scraping plates 7-12 are arranged on the surface of the sludge scraping frame 7-11, the sludge scraping plates 7-12 are uniformly distributed in the axial direction of the sludge scraping frame 7-11, and the sludge scraping operation is realized by driving the sludge scraping frame 7-11 to rotate by using a motor. The anode sludge scraping device 8-1 may have the same structure as the cathode sludge scraping device 7-1. When the cathode annular chain plate crawler moves to a non-working area, the chain plate is washed by the washing device 9-1 from top to bottom and the washing device 10-1 from bottom to top, the washing device 9-1 from top to bottom is arranged in the cathode annular chain plate crawler, and the washing device 10-1 from bottom to top is arranged below the lower part of the cathode annular chain plate crawler.
The washing device 9-1 from top to bottom and the washing device 10-1 from bottom to top utilize high-speed water flow generated by high-pressure water supplied from outside to wash the surface of the cathode plate, so as to ensure the smooth of the filtering channel on the surface of the cathode annular chain plate crawler 4-1, and the washing water and the water removed from the sludge are collected to a water receiving tray or a water receiving tank at the bottom of the frame and discharged outside the machine under the action of gravity.
The present invention and its embodiments have been described above schematically, without limitation, and may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiment shown in the drawings is only one embodiment of the invention, the actual structure is not limited thereto, and any reference signs in the claims shall not limit the claims concerned. Therefore, if a person skilled in the art receives the teachings of the present invention, without inventive design, a similar structure and an embodiment to the above technical solution should be covered by the protection scope of the present patent.
Claims (9)
1. The utility model provides an electroosmosis sludge dewatering device, includes annular link joint track, lower annular link joint track, its characterized in that: the upper annular track and the lower annular track are respectively arranged at the end parts of the chain plates of the upper annular chain plate crawler and the anode lower annular chain plate crawler and are used for supporting the chain plates and limiting the running tracks of the upper annular chain plate crawler and the lower annular chain plate crawler; the opposite part of the upper annular chain plate crawler and the lower annular chain plate crawler is divided into a pre-pressing area, a dewatering area and a pressure relief area; and the distance between the upper annular chain plate crawler and the lower annular chain plate crawler is gradually reduced from the pre-pressing area to the tail end of the dewatering area, and the distance between the upper annular chain plate crawler and the lower annular chain plate crawler is gradually increased from the tail end of the dewatering area to the pressure relief area.
2. The electro-osmotic sludge dewatering apparatus of claim 1, wherein: one ends of the upper annular chain plate crawler belt and the lower annular chain plate crawler belt, which are close to the pressure relief area, are respectively provided with a section of linear area, and the linear areas are respectively provided with a mud scraping device.
3. The electro-osmotic sludge dewatering apparatus of claim 2, wherein: the mud scraping device comprises a mud scraping frame, and a plurality of mud scraping plates are uniformly arranged in the circumferential direction of the mud scraping frame.
4. The electro-osmotic sludge dewatering apparatus of claim 2, wherein: the mud scraping device arranged at the linear area of the upper endless link belt track is a brush or a single mud scraping plate.
5. The electro-osmotic sludge dewatering apparatus of claim 1, wherein: the upper width of the lower endless chain plate crawler belt is parallel to the horizontal plane.
6. Electro-osmotic sludge dewatering apparatus according to any one of claims 1-5, wherein: the device also comprises a feeding device, and an outlet of the feeding device is close to an inlet of the pre-pressing area.
7. Electro-osmotic sludge dewatering apparatus according to any one of claims 1-5, wherein: and a flushing device is arranged on the lower part of the lower annular chain plate crawler belt.
8. The electro-osmotic sludge dewatering apparatus of claim 7, wherein: the washing unit includes from last washing unit down and from up washing unit down, from last washing unit down sets up between the upper and lower width of cloth of annular link joint track down, from up washing unit down sets up the below of the lower width of cloth of annular link joint track down.
9. Electro-osmotic sludge dewatering apparatus according to any one of claims 1-5, wherein: and a water receiving disc or a water receiving groove is arranged below the lower annular chain plate crawler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920552550.2U CN209940820U (en) | 2019-04-22 | 2019-04-22 | Electroosmosis sludge dewatering device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920552550.2U CN209940820U (en) | 2019-04-22 | 2019-04-22 | Electroosmosis sludge dewatering device |
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| CN209940820U true CN209940820U (en) | 2020-01-14 |
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| CN201920552550.2U Active CN209940820U (en) | 2019-04-22 | 2019-04-22 | Electroosmosis sludge dewatering device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116747602A (en) * | 2023-08-22 | 2023-09-15 | 烟台核信环保设备有限公司 | High-efficiency belt filter press |
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2019
- 2019-04-22 CN CN201920552550.2U patent/CN209940820U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116747602A (en) * | 2023-08-22 | 2023-09-15 | 烟台核信环保设备有限公司 | High-efficiency belt filter press |
| CN116747602B (en) * | 2023-08-22 | 2023-10-27 | 烟台核信环保设备有限公司 | High-efficiency belt filter press |
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