Desliming machine for sewage treatment

Abstract

The utility model discloses a desliming machine for sewage treatment, which comprises two desliming devices connected through a selective conducting pipeline, and the selective conducting pipeline comprises a liquid inlet pipe, a communicating pipe, a liquid outlet pipe, a first bypass pipe and a second bypass pipe; wherein one end of the liquid inlet pipe is connected with one desliming device, and a first adjusting valve is arranged on the liquid inlet pipe; the communicating pipe is connected between the two desliming devices; two second regulating valves which are arranged in series are arranged on the communicating pipe; one end of the liquid outlet pipe is connected with the other desliming device, and a third adjusting valve is arranged on the liquid outlet pipe; the first bypass pipe is connected between the liquid inlet pipe and the communicating pipe, and fourth adjusting valves are arranged at the two ends of the first bypass pipe; the second bypass pipe is connected between the liquid outlet pipe and the communicating pipe, and fifth adjusting valves are arranged at the two ends of the second bypass pipe; compared with the prior art, sewage can be continuously and efficiently subjected to desliming treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment equipment, and particularly relates to a sludge dewatering machine for sewage treatment. Background Art

[0002] Sludge dewatering for water treatment is a sludge treatment method that removes water from fluid raw, concentrated or digested sludge and converts it into semi-solid or solid sludge blocks. The dewatering methods mainly include natural drying method, mechanical dewatering method and granulation method. The natural drying method and mechanical dewatering method are applicable to sewage sludge, and the granulation method is applicable to the sludge of coagulation precipitation.

[0003] Only one filtering structure is arranged in the traditional sludge dewatering machine, and its sludge dewatering effect is poor. Moreover, when this filtering structure fails, it needs to be shut down for maintenance and cannot continue to work. Content of the Utility Model

[0004] Aiming at the deficiencies in the prior art, the purpose of the utility model is to provide a sludge dewatering machine for sewage treatment, so as to solve the problems in the prior art that only one filtering structure is arranged in the sludge dewatering machine, its sludge dewatering effect is poor, and when this filtering structure fails, it needs to be shut down for maintenance and cannot continue to work.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A sludge dewatering machine for sewage treatment includes two sludge dewaterers connected through a selectively conducting pipeline. The selectively conducting pipeline includes:

[0006] A liquid inlet pipe, one end of the liquid inlet pipe is connected to one of the sludge dewaterers, and a first regulating valve is arranged on the liquid inlet pipe;

[0007] A communicating pipe, the communicating pipe is connected between the two sludge dewaterers, and two second regulating valves arranged in series are arranged on the communicating pipe;

[0008] A liquid outlet pipe, one end of the liquid outlet pipe is connected to the other sludge dewaterer, and a third regulating valve is arranged on the liquid outlet pipe;

[0009] A first bypass pipe, the first bypass pipe is connected between the liquid inlet pipe and the communicating pipe. The first regulating valve and the second regulating valve close to the sludge dewaterer connected to the liquid inlet pipe are located between the two ends of the first bypass pipe, and fourth regulating valves are arranged at both ends of the first bypass pipe;

[0010] A second bypass pipe, the second bypass pipe is connected between the liquid outlet pipe and the communicating pipe. The third regulating valve and the other second regulating valve are located between the two ends of the second bypass pipe, and fifth regulating valves are arranged at both ends of the second bypass pipe.

[0011] Working Principle:

[0012] Under normal use conditions, close the two fourth regulating valves and the two fifth regulating valves, open the first regulating valve, the two second regulating valves and the third regulating valve. The sewage is introduced from the liquid inlet pipe into the sludge separator connected thereto for primary sludge removal work, and then is introduced into another sludge separator through the connecting pipe for secondary sludge removal work, and then the sewage after sludge removal is discharged through the liquid outlet pipe.

[0013] When the sludge separator connected to the liquid inlet pipe fails and needs to be repaired, close the first regulating valve, the second regulating valve close to the faulty sludge separator and the two fifth regulating valves, open the other second regulating valve, the two fourth regulating valves and the third regulating valve. The sewage is introduced from the liquid inlet pipe into the first bypass pipe and then into the normally operating sludge separator for sludge removal work, and then the sewage after sludge removal is discharged through the liquid outlet pipe.

[0014] When the sludge separator connected to the liquid outlet pipe fails and needs to be repaired, close the third regulating valve, the second regulating valve close to the faulty sludge separator and the two fourth regulating valves, open the other second regulating valve, the two fifth regulating valves and the first regulating valve. The sewage is introduced from the liquid inlet pipe into the normally operating sludge separator for sludge removal work, and then the sewage after sludge removal is discharged through the second bypass pipe and the liquid outlet pipe in sequence.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] In the normal use of this sludge separator for sewage treatment, the cooperation of two sludge separators is adopted to improve the sludge removal effect on sewage; when one of the sludge separators fails, the opening and closing of the first regulating valve, the two second regulating valves, the third regulating valve, the two fourth regulating valves and the two fifth regulating valves can be adjusted to enable the normally operating sludge separator to continue working, ensuring the efficient progress of the sludge removal process for sewage. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of an embodiment of the utility model;

[0018] Figure 2 is Figure 1 a cross-sectional view of the sludge separator in

[0019] The reference numerals in the accompanying drawings of the description include: sludge remover 1, housing 11, filtration module 12, mounting frame 121, filter mesh plate 122, extrusion structure 123, extrusion block 1231, protective cover 1232, connecting plate 1233, connecting rod 1234, adjusting screw 1235, power unit 1236, guide rod 1237, sealing plate 124, material guiding channel 125, adjusting part 126, adjusting lead screw 1261, transmission block 1262, driver 1263, selective conduction pipeline 2, liquid inlet pipe 21, connecting pipe 22, liquid outlet pipe 23, first bypass pipe 24, second bypass pipe 25, first regulating valve 26, second regulating valve 27, third regulating valve 28, fourth regulating valve 29, fifth regulating valve 210. Detailed Description of the Preferred Embodiment

[0020] The present utility model will be further described in detail below through specific embodiments:

[0021] As Figure 1 shown, an embodiment of the present utility model provides a sludge dewatering machine for sewage treatment, which includes two sludge removers 1 connected through a selective conduction pipeline 2. The selective conduction pipeline 2 includes a liquid inlet pipe 21, a connecting pipe 22, a liquid outlet pipe 23, a first bypass pipe 24, and a second bypass pipe 25. Among them, one end of the liquid inlet pipe 21 is connected to one of the sludge removers 1, and a first regulating valve 26 is provided on the liquid inlet pipe 21. The connecting pipe 22 is connected between the two sludge removers 1, and two second regulating valves 27 arranged in series are provided on the connecting pipe 22. One end of the liquid outlet pipe 23 is connected to the other sludge remover 1, and a third regulating valve 28 is provided on the liquid outlet pipe 23. The first bypass pipe 24 is connected between the liquid inlet pipe 21 and the connecting pipe 22. The first regulating valve 26 and the second regulating valve 27 close to the sludge remover 1 connected to the liquid inlet pipe 21 are located between the two ends of the first bypass pipe 24, and fourth regulating valves 29 are provided at both ends of the first bypass pipe 24. The second bypass pipe 25 is connected between the liquid outlet pipe 23 and the connecting pipe 22. The third regulating valve 28 and the other second regulating valve 27 are located between the two ends of the second bypass pipe 25, and fifth regulating valves 210 are provided at both ends of the second bypass pipe 25.

[0022] Under normal use conditions, close the two fourth regulating valves 29 and the two fifth regulating valves 210, open the first regulating valve 26, the two second regulating valves 27, and the third regulating valve 28. The sewage is introduced from the liquid inlet pipe 21 into the sludge separator 1 connected thereto for primary sludge removal work, and then is introduced into another sludge separator 1 through the connecting pipe 22 for secondary sludge removal work. After that, the sewage after sludge removal is discharged through the liquid outlet pipe 23. When the sludge separator 1 connected to the liquid inlet pipe 21 fails and needs to be repaired, close the first regulating valve 26, the second regulating valve 27 near the faulty sludge separator 1, and the two fifth regulating valves 210, open the other second regulating valve 27, the two fourth regulating valves 29, and the third regulating valve 28. The sewage is introduced from the liquid inlet pipe 21 into the first bypass pipe 24 and then into the normally operating sludge separator 1 for sludge removal work, and then the sewage after sludge removal is discharged through the liquid outlet pipe 23. When the sludge separator 1 connected to the liquid outlet pipe 23 fails and needs to be repaired, close the third regulating valve 28, the second regulating valve 27 near the faulty sludge separator 1, and the two fourth regulating valves 29, open the other second regulating valve 27, the two fifth regulating valves 210, and the first regulating valve 26. The sewage is introduced from the liquid inlet pipe 21 into the normally operating sludge separator 1 for sludge removal work, and then the sewage after sludge removal is discharged sequentially through the second bypass pipe 25 and the liquid outlet pipe 23.

[0023] In the normal use of this sludge separator for sewage treatment, the cooperation of the two sludge separators 1 is adopted to improve the sludge removal effect on sewage; when one of the sludge separators 1 fails, the opening and closing of the first regulating valve 26, the two second regulating valves 27, the third regulating valve 28, the two fourth regulating valves 29, and the two fifth regulating valves 210 can be adjusted to enable the normally operating sludge separator 1 to continue working, ensuring that the sludge removal process of sewage can be carried out efficiently.

[0024] To better understand this solution, the structure of the sludge separator 1 will be further optimized below.

[0025] As Figure 2 shown, according to another embodiment of the present invention, for the sludge separator for sewage treatment, each of the sludge separators 1 includes a housing 11 and a filtration module 12. The side wall of the housing 11 is provided with an inlet and an outlet arranged oppositely. The top of the housing 11 is open. The inlet or the outlet is connected to the liquid inlet pipe 21, the connecting pipe 22, or the liquid outlet pipe 23. The filtration module 12 is slid into the housing 11 from the top opening of the housing 11 and installed to communicate with the inlet and the outlet.

[0026] Here, the filter module 12 can be slid into the housing 11 through the opening at the top of the housing 11 for installation, and can also be slid out through the opening at the top of the housing 11 for disassembly. When the filter module 12 slides into the housing 11 through the opening at the top of the housing 11 and reaches the preset position, the feed inlet of the front sludge separator 1 is communicated with the liquid inlet pipe 21, and the discharge outlet of the front sludge separator 1 is communicated with one end of the connecting pipe 22; the feed inlet of the rear sludge separator 1 is communicated with the other end of the connecting pipe 22, and the discharge outlet of the rear sludge separator 1 is communicated with one end of the liquid outlet pipe 23. Then, the opening and closing of the first regulating valve 26, the two second regulating valves 27, the third regulating valve 28, the two fourth regulating valves 29, and the two fifth regulating valves 210 can be adjusted according to the operating conditions to carry out the sludge removal work on the sewage.

[0027] Among them, the filter module 12 includes a mounting frame 121 and a filter mesh plate 122. The mounting frame 121 has a filter cavity, and two through holes arranged oppositely and communicated with the filter cavity are opened on its side wall. The two through holes are respectively and correspondingly communicated with the feed inlet and the discharge outlet; there are multiple filter mesh plates 122, and they are arranged at intervals in sequence along the direction of the connection line of the two through holes in the filter cavity.

[0028] In this embodiment, the housing 11 is square, and the mounting frame 121 is also square; the top ends of the filter mesh plates 122 are fixedly connected to the inner wall of the top side of the mounting frame 121 by multiple screws, which is convenient for the installation and disassembly of the filter mesh plates 122.

[0029] During the installation process of the filter module 12: after the filter mesh plates 122 are installed in the mounting frame 121, the bottom end of the mounting frame 121 slides into the housing 11 through the opening at the top of the housing 11 until the limiting ears formed at the top end of the mounting frame 121 abut against the outside of the opening at the top of the housing 11. At this time, the two through holes are respectively and correspondingly communicated with the feed inlet and the discharge outlet, and the installation of the filter module 12 is completed. The sewage enters the filter cavity through the through hole connected to the feed inlet, and is filtered successively by multiple filter mesh plates 122. Then, the sewage is introduced into the discharge outlet through the other through hole to be discharged from the sludge separator 1. Among them, the aperture diameters of the filter holes of the multiple filter mesh plates 122 can be gradually reduced according to the flow direction of the sewage to filter the sewage efficiently and with high quality.

[0030] Furthermore, the multiple filter mesh plates 122 divide the filter cavity into multiple filter chambers arranged in sequence. An extrusion structure 123 is arranged on the mounting frame 121 in a matching manner. The extrusion structure 123 includes an extrusion block 1231 and a driving part. One extrusion block 1231 is slidably attached in each filter chamber, and the extrusion block 1231 is slidably arranged along the length direction of the filter mesh plate 122; the driving part is connected to each extrusion block 1231 for driving the extrusion block 1231 to slide synchronously.

[0031] When the sludge dewaterer 1 reaches a certain state, it can be shut down, and only another sludge dewaterer 1 is used to continue operating. At this time, the driving part drives a plurality of extrusion blocks 1231 to slide in their respective filter chambers to extrude the sludge intercepted in the filter chambers and reduce the moisture in the sludge.

[0032] The driving part described above includes a protective cover 1232, a connecting plate 1233, a connecting rod 1234, and an adjusting screw 1235. The protective cover 1232 is fixedly connected to the side wall of the mounting frame 121 outside the housing 11. The connecting plate 1233 is slidably arranged in the protective cover 1232 along the sliding direction of the extrusion block 1231. A connecting rod 1234 is connected between the connecting plate 1233 and each extrusion block 1231, and the connecting rod 1234 freely passes through the side wall of the mounting frame 121. The adjusting screw 1235 is rotatably arranged in the protective cover 1232 and is arranged along the moving direction of the connecting plate 1233. The adjusting screw 1235 is threadedly connected to the connecting plate 1233, and one end of the adjusting screw 1235 is connected to a power device 1236 outside the protective cover 1232.

[0033] In this embodiment, the protective cover 1232 is square and is fixedly connected to the limiting ears of the mounting frame 121 by a plurality of screws. The power device 1236 can be a motor. When the power device 1236 is started, the adjusting screw 1235 rotates, and the connecting plate 1233 slides in the protective cover 1232, so as to drive a plurality of extrusion blocks 1231 to slide in the corresponding filter chambers through a plurality of connecting rods 1234. If the rotation direction of the adjusting screw 1235 driven by the power device 1236 is different, the sliding direction of the extrusion block 1231 in the corresponding filter chamber is different. A guide rod 1237 parallel to the adjusting screw 1235 can also be arranged in the protective cover 1232. The guide rod 1237 is slidably connected to the connecting plate 1233 to improve the stability of the connecting plate 1233 during the moving process.

[0034] To facilitate the discharge of the sludge in the sludge dewaterer 1, as Figure 2 shown, according to another embodiment of the present invention, for the sludge dewatering machine for sewage treatment, the bottom end of the mounting frame 121 along the sliding direction of the extrusion block 1231 is open, and the bottom end of the housing 11 is also open. A sealing plate 124 for sealing the bottom opening of the housing 11 is slidably arranged on the bottom side of the housing 11, and the sealing plate 124 also seals the bottom opening of the mounting frame 121.

[0035] When it is necessary to discharge the sludge intercepted in the filtration chamber, the sludge dewatering device 1 stops operating. Then, the sliding sealing plate 124 is slid to conduct the openings at the bottom end of the housing 11 and the openings at the bottom end of the mounting frame 121. Then, the power device 1236 is started to move the extrusion block 1231 in the corresponding filtration chamber towards the opening at the bottom end of the housing 11, and the extrusion block 1231 discharges the sludge in the filtration chamber from the opening at the bottom end of the housing 11. Moreover, since the extrusion block 1231 is slidably attached to the inner wall of the corresponding filtration chamber, it can scrape off the sludge adhering to the inner wall of the filtration chamber. After the sludge is completely discharged from the opening at the bottom end of the housing 11, the sealing plate 124 is slid in the reverse direction to seal the opening at the bottom end of the housing 11, and the sealing plate 124 also contacts the bottom end of the mounting frame 121 and the bottom end of the filter mesh plate 122, so the opening at the bottom end of the mounting frame 121 is also sealed. At this time, the sludge dewatering device 1 can be put into use again.

[0036] Wherein, a material guiding channel 125 communicating with the opening at the bottom end of the housing 11 is further formed at the bottom end of the housing 11, and the sludge is discharged into the material guiding channel 125 from the opening at the bottom end of the housing 11 and then discharged.

[0037] To facilitate the movement of the sealing plate 124, the sealing plate 124 is provided with an adjusting part 126 for driving its sliding. The adjusting part 126 includes an adjusting screw rod 1261 and a transmission block 1262. The adjusting screw rod 1261 is rotatably arranged inside the bottom end of the housing 11 and is arranged along the sliding direction of the sealing plate 124. One end of the adjusting screw rod 1261 is connected to a driver 1263 located outside the housing 11; the transmission block 1262 is fixedly connected to the sealing plate 124 and is threadedly connected to the adjusting screw rod 1261.

[0038] Since the bottom end of the housing 11 is square and the transmission block 1262 is a square block, when the sealing plate 124 seals the opening at the bottom end of the housing 11, one end of it is embedded in the positioning groove formed on the inner wall of the housing 11 and the other end freely passes through the side wall of the housing 11 and is located outside the housing 11; when the driver 1263 is started to drive the adjusting screw rod 1261 to rotate, the transmission block 1262 linearly moves along the axial direction of the adjusting screw rod 1261 inside the bottom end of the housing 11 and drives the sealing plate 124 to linearly move to conduct or seal the opening at the bottom end of the housing 11 and the opening at the bottom end of the mounting frame 121. Among them, the driver 1263 can be a motor.

[0039] When it is necessary to discharge the sludge of one of the sludge dewatering devices 1:

[0040] This sludge dewatering device 1 is shut down, and the other sludge dewatering device 1 continues to operate;

[0041] Then, the driver 1263 is started, and the sealing plate 124 moves to conduct the opening at the bottom end of the housing 11 and the opening at the bottom end of the mounting frame 121;

[0042] Subsequently, the actuator 1236 is activated, and the extrusion block 1231 slides downward within the corresponding filtration chamber to push the sludge within the filtration chamber out through the opening at the bottom end of the housing 11 and into the material guiding channel 125;

[0043] After the sludge is completely discharged, the actuator 1263 drives the sealing plate 124 to move in the reverse direction, and the sealing plate 124 seals both the opening at the bottom end of the housing 11 and the opening at the bottom end of the mounting frame 121;

[0044] Then, the actuator 1236 drives the extrusion block 1231 to slide in the reverse direction, and the extrusion block 1231 slides back to the top side within the corresponding filtration chamber;

[0045] This sludge dewatering device 1 can then be put into use again.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A desludging machine for sewage treatment, characterized in that: The invention comprises two desludging devices connected by a selectively conducting pipeline, wherein the selectively conducting pipeline comprises: A liquid inlet pipe, one end of which is connected to one of the desludging devices, and a first regulating valve is provided on the liquid inlet pipe; A connecting pipe, the connecting pipe is connected between the two desludging devices and is provided with two second regulating valves arranged in series; A liquid outlet pipe, one end of which is connected to another desludging device, and a third regulating valve is provided on the liquid outlet pipe; A first bypass pipe, wherein the first bypass pipe is connected between the liquid inlet pipe and the connecting pipe, a first regulating valve and a second regulating valve close to the desludging device connected to the liquid inlet pipe are located between two ends of the first bypass pipe, and a fourth regulating valve is provided at both ends of the first bypass pipe; A second bypass pipe is connected between the liquid outlet pipe and the connecting pipe, a third regulating valve and another second regulating valve are located between two ends of the second bypass pipe, and a fifth regulating valve is provided at both ends of the second bypass pipe.

2. A desludging machine for sewage treatment according to claim 1, characterized in that: Each of the desludging devices comprises: A shell, wherein the side wall of the shell has a feed port and a discharge port arranged opposite to each other, the top of the shell is open, and the feed port or the discharge port is connected to a liquid inlet pipe, a connecting pipe or a liquid outlet pipe; The filter module is slid into the shell from the top opening of the shell and is connected with the feed port and the discharge port after installation.

3. A desludging machine for sewage treatment according to claim 2, characterized in that: The filtering module comprises: An installation frame, wherein the installation frame has a filter cavity and has two conducting holes arranged opposite to each other and connected to the filter cavity on its side wall, wherein the two conducting holes are connected to the feed port and the discharge port in a one-to-one correspondence; The filter screen plates are provided in plurality and are sequentially arranged in intervals in the filter cavity along the direction of the connecting line of the two conducting holes.

4. A desludging machine for sewage treatment according to claim 3, characterized in that: The plurality of filter screen plates divide the filter cavity into a plurality of filter chambers arranged in sequence. The mounting frame is provided with an extrusion structure, which includes: An extrusion block is slidably arranged in each filter chamber and is slidably arranged along the length direction of the filter screen plate; A driving part is connected to each extrusion block and is used to drive the extrusion blocks to slide synchronously.

5. A desludging machine for sewage treatment according to claim 4, characterized in that: The driving unit comprises: A protective cover, the protective cover is fixedly connected to a side wall of the mounting frame outside the housing; A connecting plate, the connecting plate being slidably arranged in the protective cover along the sliding direction of the extrusion block; A connecting rod, one of which is connected between the connecting plate and each extrusion block and which freely passes through the side wall of the mounting frame; The adjusting screw is rotatably arranged in the protective cover and arranged along the moving direction of the connecting plate. The adjusting screw is threadably connected to the connecting plate, and one end of the adjusting screw is connected to a power device arranged outside the protective cover.

6. A desludging machine for sewage treatment according to claim 4, characterized in that: The bottom end of the installation frame along the sliding direction of the extrusion block is open and the bottom end of the shell is also open. A sealing plate is slidably provided on the bottom side of the shell to seal its bottom opening, and the sealing plate also seals the bottom opening of the installation frame.

7. A desludging machine for sewage treatment according to claim 6, characterized in that: The sealing plate is provided with an adjusting part for driving the sealing plate to slide, and the adjusting part comprises: An adjusting screw rod, which is rotatably disposed in the bottom end of the housing and arranged along the sliding direction of the sealing plate, and one end of the adjusting screw rod is connected to a driver located outside the housing; A transmission block is fixedly connected to the sealing plate and is threadably connected to the adjusting screw.

Images