Efficient mud-water separation device

Abstract

The invention discloses an efficient mud-water separation device, which relates to the technical field of sewage treatment, and comprises a box body with a reaction tank and a water storage tank, a water inlet and distribution pipe is arranged in the reaction tank; a filter disc device is arranged in the reaction tank, the filter disc device comprises a central rotating shaft and a plurality of disc filter assemblies, the central rotating shaft is rotationally arranged in the reaction tank, and the disc filter assemblies are sequentially and fixedly arranged on the central rotating shaft; part of the outer surface of the disc filtering assembly is provided with a filtering surface; the central rotating shaft is provided with a central drainage channel; water in the reaction tank enters the central drainage channel through the filtering surface and enters the water storage tank; an adjustable water outlet tank is fixedly arranged in the reaction tank; an overflow pipe is arranged on the adjustable water outlet groove; a flushing assembly is fixedly arranged in the reaction tank; the water storage tank is provided with a water outlet pipe, and water in the water storage tank is discharged to the sedimentation tank of the next unit through the water outlet pipe. The device can reduce the load of the sedimentation tank, is compact and simple in structure and small in occupied area, and improves the sewage treatment capacity.

Description

TECHNICAL FIELD

[0001] The present application relates to the sewage treatment technical field, in particular to a high-efficiency sludge-water separation device. BACKGROUND

[0002] At present, the country pays high attention to sewage treatment, and takes active measures to accelerate the sewage treatment. At present, in the sewage treatment process section of the sewage plant, the equipment occupies a large area, the maintenance cost is high, and the power consumption is high.

[0003] After the sewage treatment capacity of the sewage plant is increased, the sedimentation tank needs to be expanded, but this method is not applicable to the sewage plant which is not enough for expansion or land occupation. If the original sedimentation tank is still relied on, the load of the sedimentation tank will be increased, which will affect the treatment capacity of the subsequent biochemical tank, and then the treatment efficiency will be low after a certain period of operation and shutdown cleaning. SUMMARY

[0004] The purpose of the present application is to provide a high-efficiency sludge-water separation device to solve the problems existing in the prior art, reduce the load of the sedimentation tank, and improve the sewage treatment capacity.

[0005] To achieve the above purpose, the present application provides the following scheme:

[0006] The present application provides a high-efficiency sludge-water separation device, which comprises a box body, the box body has a reaction tank and a water storage tank, the bottom of the reaction tank is provided with a water inlet distribution pipe for feeding raw water, the reaction tank is provided with a filter disc device, the filter disc device comprises a central rotating shaft and a plurality of disc filter assemblies, the central rotating shaft is rotatably arranged in the reaction tank, and each disc filter assembly is fixedly arranged on the central rotating shaft, part of the outer surface of the disc filter assembly has a filter surface, the central rotating shaft has a central drainage channel, the water in the reaction tank enters the central drainage channel through the filter surface, and the end opening of the central drainage channel is communicated with the water storage tank, an adjustable water outlet groove is fixedly arranged in the reaction tank, the installation height of the adjustable water outlet groove in the reaction tank is adjustable, an overflow pipe is arranged on the adjustable water outlet groove, a flushing assembly for flushing the filter surface of each disc filter assembly is fixedly arranged in the reaction tank, and the water storage tank is provided with a water outlet pipe.

[0007] Preferably, the flushing assembly comprises a flushing pipe and a plurality of nozzles, and each filter surface of the disc filter assembly corresponds to a plurality of nozzles.

[0008] Preferably, the inner bottom of the reaction tank is provided with a drain hole.

[0009] Preferably, a partition plate is fixedly arranged in the box cavity, the partition plate divides the box cavity into the reaction pool and the water storage pool, and one end of the central rotating shaft is rotatably arranged on the partition plate.

[0010] Preferably, the central rotating shaft comprises a central fixed square tube, an inner cavity of the central fixed square tube forms the central drainage channel, the disc filter assembly is formed by a plurality of fan-shaped units, the fan-shaped unit comprises a plurality of filter cloths, the plurality of filter cloths are fixedly arranged on the central fixed square tube, both sides of the plurality of filter cloths are closed by the corresponding filter cloths, the central fixed square tube is provided with a first communication port corresponding to each fan-shaped unit, and the plurality of filter cloths are provided with a second communication port.

[0011] Preferably, each adjacent two fan-shaped units are fixedly connected through a connecting arc-shaped plate.

[0012] Preferably, one end of the central fixed square tube is fixedly provided with a first central rotating circular tube, and the other end of the central fixed square tube is fixedly provided with a second central rotating circular tube, the first central rotating circular tube is rotatably arranged on the partition plate through a first sealing device, and the second central rotating circular tube is rotatably arranged on the side wall opposite to the partition plate of the reaction pool through a second sealing device.

[0013] Preferably, the drive mechanism comprises a driver and a chain, a first sprocket is fixedly arranged on a rotating output end of the driver, a connecting shaft head is fixedly arranged on one end of the second central rotating circular tube away from the central fixed square tube, a second sprocket is fixedly arranged on the connecting shaft head, and the chain is sleeved on the first sprocket and the second sprocket.

[0014] Preferably, the connecting shaft head is arranged on the ground through a bearing seat.

[0015] Preferably, a connecting support is arranged on the plurality of filter cloths, an installation hole is formed in the connecting support, a threaded hole is formed in a position corresponding to the central fixed square tube, a connecting bolt is arranged in the installation hole in a threaded mode, and a threaded end of the connecting bolt is threadedly connected in the threaded hole.

[0016] The present application has the following technical effects relative to the prior art:

[0017] The high-efficiency sludge-water separation device provided by the application has the advantages that the raw water and the clean water are physically isolated to prevent the raw water from mixing with the clean water, the integrated design is more land-saving than the traditional scattered layout, the structure is compact and the land occupation is small, the device can be added to intercept sludge solids in the inflow of the biochemical tank to reduce the load of the sedimentation tank when the sewage plant is expanded or the land occupation is insufficient, the water distribution pipe at the bottom of the reaction tank uniformly distributes water, the filter cloth flux is stable, the filter disc is modularly designed, a single set of components can be disassembled and replaced, and the maintenance time is shortened, the flushing assembly at the top of the reaction tank directionally flushes the filter surface, the flushing can be realized without stopping the machine, the passing capacity of the filter surface is restored, the continuous filtration of the filter surface is realized, and the whole device is ensured to continuously operate for 24 hours, the intercepted sludge and the raw water entering from the bottom of the reaction tank are mixed by the water inlet and supplementing pipe, the overflow pipe on the adjustable water outlet tank returns to the biochemical tank, the sludge concentration of the biochemical tank is improved, the treatment capacity of the biochemical tank is improved without expansion, the adjustable water outlet tank can obtain the optimal liquid level height in the reaction tank by adjusting the height, the optimal flux of the filter surface is improved, and the treatment capacity of the sedimentation tank can be improved without expanding the sedimentation tank when the water quantity of the sewage plant is increased. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0019] Figure 1 The overall structure schematic diagram of the high-efficiency sludge-water separation device provided by the present application is shown in the figure.

[0020] Figure 2 The structure schematic diagram of the filter disc device in the high-efficiency sludge-water separation device provided by the present application is shown in the figure.

[0021] In the figure:

[0022] 1-driver; 2-chain; 3-bearing seat; 4-box; 5-flushing pipe; 6-water inlet distribution pipe; 7-baffle; 8-first sealing device; 9-water outlet pipe; 10-nozzle; 11-emptying port; 12-overflow pipe; 13-filter disc device; 14-adjustable water outlet tank; 15-second sealing device; 16-second center rotating circular pipe; 17-filter cloth; 18-skeleton; 19-center fixed square pipe; 20-connection shaft head; 21-connection arc plate; 22-connection support. DETAILED DESCRIPTION

[0023] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts, fall within the protection scope of the present application.

[0024] The purpose of the present application is to provide a high-efficiency sludge-water separation device to solve the problems existing in the prior art, reduce the load of the sedimentation tank, have a compact and simple structure, small footprint, and improve the sewage treatment capacity.

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0026] Embodiment one

[0027] The present embodiment provides a high-efficiency sludge-water separation device, which is mainly applied between the biochemical tank and the sedimentation tank process section, such as Figures 1-2As shown, including the box 4, the box 4 has a reaction pool and a water storage pool; the bottom of the reaction pool is provided with a water inlet distribution pipe 6 for the raw water (from the biochemical pool) (the raw water of the biochemical pool is evenly distributed in the reaction pool through the water inlet distribution pipe 6, and the distribution of the water inlet distribution pipe 6 can be set according to the actual needs, and the openings are evenly arranged on the water inlet distribution pipe 6 to make the raw water evenly enter the reaction pool, and the purpose is to realize the uniform distribution of the pool bottom in the reaction pool); the reaction pool is provided with a filter disc device 13, the filter disc device 13 includes a central rotating shaft and a plurality of disc filter assemblies, the central rotating shaft is rotatably arranged in the reaction pool, and each disc filter assembly is fixedly arranged on the central rotating shaft; part of the outer surface of the disc filter assembly has a filter surface (i.e. both sides, the position with the filter cloth 17); the central rotating shaft has a central drainage channel; the water in the reaction pool enters the central drainage channel through the filter surface, and the end opening of the central drainage channel is communicated with the water storage pool; a adjustable water outlet groove 14 is fixedly arranged in the reaction pool, and the installation height of the adjustable water outlet groove 14 in the reaction pool is adjustable (the specific way of adjusting the installation height of the adjustable water outlet groove 14 in the reaction pool includes but is not limited to the following way, such as a hoisting support is fixedly arranged above the reaction pool, the hoisting support is connected with the adjustable water outlet groove 14 through at least two hoisting screws; at least two perforations are arranged on the hoisting support, one hoisting screw is arranged in each perforation, and a locking nut is threadedly connected with the hoisting screw above the perforation; the hoisting screw is fixedly connected with the adjustable water outlet groove 14, which can be directly welded or can be realized by hole matching nut, which is a prior art and will not be described in detail here); the adjustable water outlet groove 14 is provided with an overflow pipe 12; the reaction pool is fixedly provided with a washing assembly for washing the filter surface of each disc filter assembly; the water storage pool is provided with a water outlet pipe 9, and the water in the water storage pool is discharged to the next sedimentation tank through the water outlet pipe 9.

[0028] The raw water and clean water are physically isolated to prevent mixing by the reaction tank and the water storage tank in the box 4. The integrated design is more land-saving than the traditional scattered layout, and the structure is compact and the land occupation is small. When the sewage plant is expanded or the land area is insufficient, the device is added to intercept the sludge solids in the inflow of the biochemical tank to reduce the load of the sedimentation tank. The water distribution pipe 6 at the bottom of the reaction tank uniformly distributes the water, and the filter cloth 17 has stable flux. The filter disc is modularly designed, and a single component can be disassembled and replaced, so that the maintenance time is shortened. The directional washing assembly at the top of the reaction tank washes the filter surface, which can realize washing without stopping, restore the passing capacity of the filter surface, thereby realizing continuous filtration of the filter surface and ensuring 24-hour continuous operation of the entire device. The intercepted sludge and the raw water coming from the bottom of the reaction tank are mixed by the water inlet pipe impact agitation, and then returned to the biochemical tank through the overflow pipe 12 on the adjustable water outlet tank 14, so as to improve the sludge concentration of the biochemical tank, thereby improving the treatment capacity of the biochemical tank without expansion, and the adjustable water outlet tank 14 can obtain the best liquid level height in the reaction tank by adjusting the height, so as to improve the best flux of the filter surface. After the water quantity of the sewage plant is increased, the sedimentation tank does not need to be expanded again, and the treatment capacity of the sedimentation tank can be improved.

[0029] Among them, the setting of the reaction tank and the water storage tank in the box 4 is as follows:

[0030] In the optional scheme of the present embodiment, as shown in Figure 1 , a partition plate 7 is fixedly arranged in the inner cavity of the box 4, and the partition plate 7 divides the inner cavity of the box 4 into a reaction tank and a water storage tank. One end of the central rotating shaft is rotatably arranged on the partition plate 7.

[0031] Among them, the related setting in the reaction tank is as follows:

[0032] In the optional scheme of the present embodiment, as shown in Figure 1 , the inner bottom of the reaction tank is provided with a drain port 11.

[0033] In the optional scheme of the present embodiment, as shown in Figure 1 , the washing assembly includes a washing pipe 5 and a plurality of nozzles 10 (the washing pipe 5 includes a main pipe and a plurality of branch pipes, so that Figure 1 Two filter disc devices 13 are taken as an example for illustration, at this time, the branch pipes have three in total, each branch pipe is in communication with the main pipe, and two rows of nozzles 10 corresponding to one side of the two filter disc devices 13 are arranged on the branch pipe between the two filter disc devices 13), and each filter surface of the disc filter assembly corresponds to a plurality of nozzles 10.

[0034] Specifically, the spray washing water (the source of the spray washing water can be the water in the water storage tank) is distributed to each nozzle 10 through the washing pipe 5, and a certain spray washing angle is formed at the nozzle 10 to realize the washing of the filter cloth 17 blocked by the intercepted sludge to form a sludge cake. Combined with the rotation of the filter disc device 13, continuous filtration and continuous washing are realized, and 24-hour non-stop operation is realized.

[0035] In the alternative of the embodiment, preferably, as shown in Figure 1 and Figure 2 , the central rotating shaft comprises a central fixed square tube 19, the inner cavity of the central fixed square tube 19 forms a central drainage channel; the disc filter assembly is formed by a plurality of fan-shaped units spliced together; the fan-shaped unit comprises a framework 18 and a plurality of filter cloths 17; the framework 18 is used for being fixedly arranged on the central fixed square tube 19; the two sides of the framework 18 are closed by the corresponding filter cloths 17; the central fixed square tube 19 is provided with a first communication port corresponding to the position of each fan-shaped unit, and the framework 18 is provided with a second communication port, and the first communication port and the second communication port are correspondingly communicated.

[0036] In the alternative of the embodiment, preferably, as shown in Figure 1 , the framework 18 is provided with a connecting bracket 22, the connecting bracket 22 is provided with a mounting hole, the central fixed square tube 19 is provided with a threaded hole corresponding to the position, and a connecting bolt is arranged in the mounting hole, and the threaded end of the connecting bolt is threadedly connected in the threaded hole.

[0037] In the alternative of the embodiment, preferably, as shown in Figure 1 and Figure 2 , each adjacent two fan-shaped units are fixedly connected through a connecting arc-shaped plate 21.

[0038] In the alternative of the embodiment, preferably, as shown in Figure 1 and Figure 2 , one end of the central fixed square tube 19 is fixedly provided with a first central rotating circular tube (the inner cavity of the first central rotating circular tube is communicated with the inner cavity of the central fixed square tube 19, and the opening of the first central rotating circular tube away from the central fixed square tube 19 is located in the water storage pool), and the other end of the central fixed square tube 19 is fixedly provided with a second central rotating circular tube 16; the first central rotating circular tube is rotatably arranged on the partition plate 7 through a first sealing device 8; the second central rotating circular tube 16 is rotatably arranged on the side wall opposite to the partition plate 7 of the reaction pool through a second sealing device 15 (the functions of the first sealing device 8 and the second sealing device 15 are to ensure the sealing effect of the reaction pool at the position, to reduce the water flow from the position in the reaction pool, such as an O-shaped sealing ring, to realize the sealing of the shaft rotating position, which is an existing setting and will not be described in detail).

[0039] In the alternative of the embodiment, preferably, as shown in Figure 1 , the driving mechanism comprises a driver 1 (a motor or an integrated body of a motor and a speed reducer) and a chain 2; the rotating output end of the driver 1 is fixedly provided with a first sprocket; the end of the second central rotating circular tube 16 away from the central fixed square tube 19 is fixedly provided with a connecting shaft head 20 (such as welding); the connecting shaft head 20 is fixedly provided with a second sprocket; and the chain 2 is sleeved on the first sprocket and the second sprocket.

[0040] In the optional solution of the embodiment, preferably, as shown in Figure 1 The connecting shaft head 20 is arranged on the ground through the bearing seat 3.

[0041] Specifically, the center rotating shaft is driven to rotate at a low speed by the driver 1, the raw water submerged below the liquid surface of the reaction tank is filtered through the filter cloth 17 under the action of gravity flow, the pollutants in the raw water are intercepted by the filter cloth 17 to form a mud cake, when the driver 1 drives the center rotating shaft to rotate to the top, the filter cloth 17 is washed by the washing assembly to restore the passing capacity of the filter cloth 17, the mud cake is washed down and mixed with the water in the reaction tank to enter the overflow pipe 12 from the adjustable water outlet groove 14 and return to the biochemical tank (the aerobic tank, to improve the treatment capacity of the aerobic tank) through gravity flow; the rotating power of the center rotating shaft is provided by the driver 1.

[0042] The principle and implementation mode of the present application are described by using specific examples in the present application, the above embodiment is only used for helping to understand the method of the present application and its core idea; meanwhile, for the general skilled in the art, according to the idea of the present application, the specific implementation mode and application range will be changed. In conclusion, the content of the present application should not be understood as the limitation of the present application.

Claims

1. A high-efficiency mud-water separation device, characterized by: It comprises a box body, wherein the box body has a reaction tank and a water storage tank; A water inlet distribution pipe for introducing raw water is provided at the bottom of the reaction tank; a filter disc device is provided in the reaction tank, and the filter disc device includes a central rotating shaft and a plurality of disc filter assemblies, the central rotating shaft is rotatably provided in the reaction tank, and each of the disc filter assemblies is fixedly provided on the central rotating shaft in sequence; part of the outer surface of the disc filter assembly has a filtering surface; the central rotating shaft has a central drainage channel; the water in the reaction tank enters the central drainage channel through the filtering surface, and the end opening of the central drainage channel is connected to the water storage tank; an adjustable water outlet trough is fixedly provided in the reaction tank, and the installation height of the adjustable water outlet trough in the reaction tank is adjustable; an overflow pipe is provided on the adjustable water outlet trough; a flushing assembly for flushing the filtering surface of each of the disc filter assemblies is fixedly provided in the reaction tank; The water storage tank is provided with a water outlet pipe, and the water in the water storage tank is discharged to the sedimentation tank of the next unit through the water outlet pipe.

2. The high-efficiency mud-water separation device according to claim 1 is characterized in that: The flushing assembly includes a flushing pipe and a plurality of nozzles, and each filtering surface of the disc filter assembly corresponds to the plurality of nozzles.

3. The high-efficiency mud-water separation device according to claim 1 is characterized in that: The inner bottom of the reaction tank is provided with an emptying port.

4. The high-efficiency mud-water separation device according to claim 1 is characterized in that: A partition is fixedly provided in the inner cavity of the box body, and the partition separates the inner cavity of the box body into the reaction tank and the water storage tank; one end of the central rotating shaft is rotatably provided on the partition.

5. The high-efficiency mud-water separation device according to claim 4 is characterized in that: The central rotating shaft includes a central fixed square tube, and the inner cavity of the central fixed square tube forms the central drainage channel; The disc filter assembly is formed by a plurality of sector-shaped units; the sector-shaped units include a frame and a plurality of filter cloths; the frame is used to be fixedly mounted on the central fixed square tube; both sides of the frame are closed by the corresponding filter cloths; the central fixed square tube is provided with a first communication port at a position corresponding to each sector-shaped unit, and a second communication port is provided on the frame, and the first communication port is correspondingly connected to the second communication port.

6. The high-efficiency mud-water separation device according to claim 5, characterized in that: Every two adjacent sector-shaped units are fixedly connected via a connecting arc plate.

7. The high-efficiency mud-water separation device according to claim 5, characterized in that: A first central rotating circular tube is fixed to one end of the central fixed square tube, and a second central rotating circular tube is fixed to the other end of the central fixed square tube; the first central rotating circular tube is rotatably arranged on the partition through a first sealing device; the second central rotating circular tube is rotatably arranged on the side wall of the reaction tank opposite to the partition through a second sealing device.

8. The high-efficiency mud-water separation device according to claim 7, characterized in that: It also includes a driving mechanism; the driving mechanism includes a driver and a chain; a first sprocket is fixed to the rotation output end of the driver; A connecting shaft head is fixedly provided on one end of the second central rotating circular tube away from the central fixed square tube; a second sprocket is fixed on the connecting shaft head; and the chain is sleeved on the first sprocket and the second sprocket.

9. The high-efficiency mud-water separation device according to claim 8, characterized in that: The connecting shaft head is arranged on the ground through a bearing seat.

10. The high-efficiency mud-water separation device according to claim 5, characterized in that: A connecting bracket is provided on the skeleton, a mounting hole is opened on the connecting bracket, a threaded hole is opened at a corresponding position of the central fixed square tube, a connecting bolt is passed through the mounting hole, and the threaded end of the connecting bolt is threadedly connected in the threaded hole.

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