A device for biological treatment of chemical waste water

Abstract

The application provides a chemical wastewater biological treatment device, which comprises a treatment tank with an open top, a water inlet formed on one side of the treatment tank, and a water outlet formed at the bottom of the other side; a fixed membrane bioreactor is fixed in the treatment tank; a sludge discharge outlet is formed at the bottom of the treatment tank and close to the water outlet; and support blocks are symmetrically fixed at the bottom of the treatment tank. The design of the cleaning mechanism realizes the cleaning effect on the surface of the filter plate. The flow sensor and the flushing assembly are used in cooperation. The flow sensor monitors the water flow in the drain pipe in real time. When the water flow is lower than the preset threshold, the flushing assembly flushes the filter plate. Since the flushing assembly is located in the drain pipe, the filter plate is reversely washed. When the sludge and impurities easily penetrate into the filter holes of the filter plate, causing the filter holes to be blocked, the flushing assembly can clean the sludge and impurities in the filter holes, so as to ensure the normal discharge of water in the treatment tank and improve the wastewater treatment efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wastewater treatment equipment, in particular to a chemical wastewater biological treatment device. BACKGROUND

[0002] Wastewater treatment method is a method of separating or converting the pollutants contained in wastewater into harmless substances, so as to purify the wastewater. It is mainly divided into four categories: wastewater physical treatment method, wastewater chemical treatment method, wastewater physical-chemical treatment method and wastewater biological treatment method.

[0003] Wastewater biological treatment method is a method of using microorganisms to degrade and convert organic matter and pollutants in wastewater. It mainly includes biological degradation, biosorption, biological sedimentation and biological oxidation processes. The following is a common wastewater biological treatment method: 1. Aerobic biological treatment method: aerobic biological treatment method is a process of using aerobic bacteria to degrade organic matter in wastewater in an oxygen-containing environment. Usually, activated sludge method or membrane bioreactor (MBR) process is used to implement. In these processes, wastewater is introduced into a biological reactor, and microorganisms convert organic matter into carbon dioxide and water through biological degradation, and remove pollutants in wastewater; 2. Anaerobic biological treatment method; 3. Plant treatment method; 4. Biological filter method: biological filter method usually uses special filter materials (such as sand, coal, biological ceramic, etc.) to build filter, and uses microorganisms in it to degrade organic matter in wastewater. When wastewater passes through the filter, microorganisms are adsorbed on the surface of the filter material and grow and metabolize using organic matter to achieve wastewater purification; 5. Anaerobic-aerobic combined treatment method;

[0004] In the process of treating wastewater by biological treatment method, a filter plate is generally arranged at the discharge port of the treatment tank to filter impurities and sludge in the water before discharging. However, the sludge and impurities are easy to adhere to the filter plate and cause blockage of the filter plate, thereby affecting the normal discharge of water in the treatment tank. At present, most treatment tanks are provided with a cleaning mechanism for cleaning the surface of the filter plate. However, in actual use, part of the sludge and impurities can penetrate into the filter holes of the filter plate, causing blockage of the filter holes and poor cleaning effect of the filter plate.

[0005] Therefore, the present application provides a chemical wastewater biological treatment device. SUMMARY

[0006] In view of the deficiencies of the prior art, the present application provides a chemical wastewater biological treatment device to solve the problems mentioned in the background art.

[0007] To achieve the above purpose, the present application realizes the following technical scheme:

[0008] The utility model provides a kind of chemical wastewater biological treatment device, including treatment pool, top is open, water inlet is set in one side of treatment pool, and drainage outlet is set in the bottom position of the other side;Fixed membrane bioreactor is fixed in treatment pool, and sludge discharge outlet is set in the bottom of treatment pool and near drainage outlet;

[0009] Symmetrically fixed support block is set in the bottom of treatment pool, and sludge collection tank is set in the opposite side of two support blocks and is communicated with sludge discharge outlet, discharge hole is set in sludge collection tank, and sealing head for plugging discharge hole is screw-mounted on sludge collection tank;

[0010] Mounting plate is installed in the treatment pool and at drainage outlet, and filter plate for plugging drainage outlet is detachably mounted on mounting plate, and cleaning mechanism for cleaning filter plate is installed on mounting plate;

[0011] Drain pipe is fixedly installed on the treatment pool and is communicated with drainage outlet, and flow sensor is fixedly installed in drain pipe, and flushing assembly is installed in drain pipe and between flow sensor and filter plate, and it is used for flushing filter plate.

[0012] Further: the cleaning mechanism includes:

[0013] Fixed plate is fixedly installed on mounting plate by screw, horizontal rotating shaft is rotatably installed on fixed plate, cleaning brush that is consistent with filter plate is fixed on the end of rotating shaft, and driving part for driving rotating shaft to rotate is installed on mounting plate.

[0014] Further: the driving part includes:

[0015] Rotating shaft is vertically and rotatably installed on mounting plate, and the top end of rotating shaft penetrates mounting plate and extends into mounting slot, and the bottom end is connected with rotating shaft through bevel gear assembly, first motor for driving rotating shaft to rotate is fixedly installed on mounting plate and in mounting slot, and sealing plate for sealing opening end of mounting slot is fixedly installed on mounting plate by screw.

[0016] Further: the flushing assembly includes:

[0017] Mounting shaft is horizontally and rotatably installed on drain pipe, water pipe is fixedly installed on mounting shaft, multiple water outlet pipes that are communicated with water pipe are fixedly installed on one side of water pipe and equidistantly arrayed near filter plate, one end of water pipe penetrates mounting shaft and extends outside drain pipe, one-way valve is fixedly installed on drain pipe, water inlet pipe is installed on drain pipe through rotating joint, and driving assembly for mounting shaft is installed on drain pipe, which is used for reciprocating rotation of mounting shaft on drain pipe.

[0018] Further, the driving assembly comprises a support fixedly installed on the drain pipe, a rotating disc is rotatably installed on the support, a connecting shaft is fixed at an eccentric position of the rotating disc, a transmission rod is fixed at the end of the connecting shaft, the transmission rod is slidably connected with the connecting shaft, a second motor for driving the rotating disc to rotate is fixedly installed on the support.

[0019] Further, the shaft and the opposite side of the fixed plate and the cleaning brush are installed with a spoiler mechanism for disturbing the water flow to the drain.

[0020] Further, the spoiler mechanism comprises a plurality of spoiler plates fixedly installed in an annular array outside the shaft, and a plurality of spoiler holes are formed in the spoiler plates.

[0021] Further, the fixed plate is installed with a cleaning assembly for scraping the surface of the spoiler plate, and the cleaning assembly comprises:

[0022] A connecting frame is fixedly installed on the fixed plate below the shaft, the end of the connecting frame extends to the outside of the spoiler plate, a hinged frame is hingedly connected to one side of the connecting frame close to the shaft, a coil spring connected with the hinged frame is fixed on the connecting frame, and a rotating roller capable of abutting the spoiler plate is rotatably installed at the free end of the hinged frame.

[0023] Further, a plurality of flow guide holes are formed in the mounting plate, the longitudinal section of the flow guide hole is L-shaped, one end of the flow guide hole in the horizontal direction penetrates through the side of the mounting plate away from the filter plate, and one end of the flow guide hole in the vertical direction penetrates through the bottom of the mounting plate and is located on one side of the filter plate.

[0024] A water level sensor is fixedly installed in the treatment tank, guide rails are symmetrically fixed outside the drain on the treatment tank, the mounting plate is inserted between the two guide rails, and a lifting assembly acting on the mounting plate is installed on the supporting block.

[0025] Further, the lifting assembly comprises:

[0026] A supporting frame is fixedly installed on the supporting block, a telescopic rod in the vertical direction is fixedly installed on the supporting frame, the telescopic end of the telescopic rod is fixedly connected with the mounting plate, a rotating ring is rotatably installed on the supporting frame, a threaded rod in the vertical direction is rotatably connected to the mounting plate, the threaded rod is threadedly penetrated through the rotating ring, a third motor is fixedly installed on the supporting frame, and the output shaft of the third motor is connected with the rotating ring through a straight gear assembly.

[0027] The present application provides a chemical wastewater biological treatment device. Compared with the prior art, the present application has the following beneficial effects:

[0028] The design of the cleaning mechanism realizes the cleaning effect on the surface of the filter plate. The cooperation of the flow sensor and the flushing assembly is used. The flow sensor monitors the water flow in the drain pipe in real time. When the water flow is lower than the preset threshold, the filter plate is flushed through the flushing assembly. Since the flushing assembly is located in the drain pipe, the reverse flushing effect on the filter plate is achieved. When the sludge and impurities easily penetrate into the filter holes of the filter plate, causing the filter holes to be blocked, the flushing assembly can clean the sludge and impurities in the filter holes, thereby ensuring the normal discharge of water in the treatment tank and improving the wastewater treatment efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0030] Figure 1 The three-dimensional structure schematic diagram of the present application is shown;

[0031] Figure 2 The installation structure schematic diagram of the filter plate of the present application is shown;

[0032] Figure 3 The structure schematic diagram of the sludge collection tank of the present application is shown;

[0033] Figure 4 The structure schematic diagram of the lifting assembly of the present application is shown;

[0034] Figure 5 The structure schematic diagram of the flushing assembly of the present application is shown;

[0035] Figure 6 The installation structure schematic diagram of the flushing assembly of the present application is shown;

[0036] Figure 7 The installation structure schematic diagram of the flow disturbing mechanism of the present application is shown;

[0037] Figure 8 The installation structure schematic diagram of the cleaning assembly of the present application is shown;

[0038] Figure 9 The structure explosion diagram of the cleaning assembly of the present application is shown;

[0039] As shown in the figure: 1, treatment tank; 11, water inlet; 12, drain; 13, fixed membrane bioreactor; 15, support block; 16, sludge collection tank; 161, discharge hole; 162, plug; 17, drain pipe; 18, flow sensor; 19, water level sensor; 2, mounting plate; 21, filter plate; 22, mounting groove; 23, sealing plate; 24, flow guide hole; 3, cleaning mechanism; 31, fixed plate; 32, rotating shaft; 33, cleaning brush; 34, driving piece; 341, rotating shaft; 342, bevel gear assembly; 343, first motor; 4, flushing assembly; 41, mounting shaft; 42, water pipe; 43, water outlet pipe; 44, one-way valve; 45, rotating joint; 46, water inlet pipe; 5, driving assembly; 51, rotating disc; 52, connecting shaft; 53, transmission rod; 54, second motor; 55, support; 6, turbulence mechanism; 61, turbulence plate; 611, turbulence hole; 7, cleaning assembly; 71, connecting frame; 72, hinged frame; 73, coil spring; 74, rotating roller; 8, lifting assembly; 81, support frame; 82, telescopic rod; 83, rotating ring; 84, third motor; 85, straight gear assembly; 86, threaded rod. DETAILED DESCRIPTION

[0040] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application are described clearly and completely. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application. Embodiment one

[0041] To solve the technical problems in the background art, the following biological treatment device for chemical wastewater is given:

[0042] In combination with Figures 1-9As shown, the present application provides a kind of chemical wastewater biological treatment device, including treatment pool 1, top is open, one side of treatment pool 1 is equipped with water inlet 11, the other side bottom position is equipped with drain 12;Fixed membrane bioreactor 13 is fixed in treatment pool 1, and sludge discharge port is opened at the bottom of treatment pool 1 and close to drain 12;The bottom of the treatment pool 1 is fixed with support block 15, and the opposite side of the two support blocks 15 is provided with sludge collection tank 16 which is communicated with the sludge discharge port, and the sludge collection tank 16 is provided with discharge hole 161, and the sludge collection tank 16 is threadedly installed with plug head 162 for plugging the discharge hole 161;The installation plate 2 is installed in the treatment pool 1 and at the drain 12, and the filter plate 21 for plugging the drain 12 is detachably installed on the installation plate 2, and the cleaning mechanism 3 for cleaning the filter plate 21 is installed on the installation plate 2;The drain pipe 17 communicated with the drain 12 is fixedly installed on the treatment pool 1, the flow sensor 18 is fixedly installed in the drain pipe 17, and the flushing assembly 4 is installed between the flow sensor 18 and the filter plate 21 in the drain pipe 17, which is used for flushing the filter plate 21, wherein, in this embodiment, a background control system is also provided, the water flow threshold is preset in the background control system, the flow sensor 18 is in communication connection with the background control system, and the buzzer is preset in the background control system.

[0043] The design of cleaning mechanism 3 realizes the cleaning effect of the surface of filter plate 21, and the cooperation of flow sensor 18 and flushing assembly 4 is used for real-time monitoring of water flow in drain pipe 17, and when the water flow is lower than the preset threshold, the filter plate 21 is flushed by flushing assembly 4, and since flushing assembly 4 is located in drain pipe 17, the filter plate 21 is reversely washed, and when sludge and impurities easily penetrate into the filter hole of filter plate 21, flushing assembly 4 can clean the sludge and impurities in the filter hole, so as to ensure the normal discharge of water in treatment pool 1 and improve the efficiency of wastewater treatment. Example two

[0044] As Figures 1-9 shown, on the basis of the above embodiment, the present embodiment further gives the following contents:

[0045] In this embodiment, the cleaning mechanism 3 comprises: a fixed plate 31 fixedly installed on the installation plate 2 by screws, a rotating shaft 32 in horizontal direction is rotatably installed on the fixed plate 31, a cleaning brush 33 is fixed on the end of rotating shaft 32 and abuts against the filter plate 21, and a driving part 34 for driving rotating shaft 32 to rotate is installed on the installation plate 2.

[0046] When used, rotating shaft 32 is rotated on fixed plate 31 by driving part 34, which drives cleaning brush 33 to rotate around rotating shaft 32, so as to realize the cleaning effect of filter plate 21.

[0047] In the embodiment, the driving member 34 comprises a rotating shaft 341, the top of the mounting plate 2 is provided with a mounting groove 22, the rotating shaft 341 is vertically arranged and rotatably mounted on the mounting plate 2, the top end of the rotating shaft 341 penetrates through the mounting plate 2 and extends into the mounting groove 22, the bottom end is connected with the rotating shaft 32 through a bevel gear assembly 342, a first motor 343 for driving the rotating shaft 341 to rotate is fixedly mounted on the mounting plate 2 and located in the mounting groove 22, and a sealing plate 23 for sealing the opening end of the mounting groove 22 is fixedly mounted on the mounting plate 2 by screws.

[0048] In use, the first motor 343 is controlled to drive the rotating shaft 341 to rotate on the mounting plate 2, so that the rotating shaft 32 can be driven to rotate through the bevel gear assembly 342, which is convenient to control, and the sealing plate 23 can realize the sealing effect of the opening end of the mounting groove 22.

[0049] In the embodiment, the flushing assembly 4 comprises a mounting shaft 41, which is horizontally arranged and rotatably mounted on the drain pipe 17, a water passage pipe 42 is fixedly mounted on the mounting shaft 41, a plurality of water outlet pipes 43, which are in communication with the water passage pipe 42, are fixedly arranged on the water passage pipe 42 and equidistantly arranged on one side of the filter plate 21, one end of the water passage pipe 42 penetrates through the mounting shaft 41 and extends to the outside of the drain pipe 17, a one-way valve 44 is fixedly mounted on the drain pipe 17, a water inlet pipe 46 is mounted on the drain pipe 17 through a rotating joint 45, a high-pressure water pump is connected to the water inlet pipe 46, the high-pressure water pump is in communication with an external clean water source, and the drain pipe 17 is provided with the driving assembly 5 acting on the mounting shaft 41, which is used for reciprocating rotating the mounting shaft 41 on the drain pipe 17, wherein the high-pressure water pump and the driving assembly 5 are in communication connection with the background control system.

[0050] In operation, when the flow sensor 18 detects that the water flow in the drain pipe 17 is lower than the preset flow threshold of the background control system, the background control system controls the driving assembly 5 to act and controls the high-pressure water pump to deliver clean water to the water inlet pipe 46, the driving assembly 5 reciprocating rotates the mounting shaft 41 on the drain pipe 17, thereby driving the plurality of water outlet pipes 43 to reciprocate, and after the high-pressure water pump delivers clean water into the water inlet pipe 46, the clean water enters the water passage pipe 42 through the rotating joint 45 and the one-way valve 44, and is discharged through the plurality of water outlet pipes 43, so that the clean water passes through the filter plate 21 and flows into the treatment tank 1, thereby realizing the cleaning effect of the filter holes of the filter plate 21 and avoiding the filter holes being blocked to reduce the wastewater treatment efficiency.

[0051] In this embodiment, the driving assembly 5 includes a bracket 55 fixedly mounted on the drain pipe 17, a turntable 51 is rotatably mounted on the bracket 55, a connecting shaft 52 is fixed at an eccentric position of the turntable 51, a transmission rod 53 is fixed to the end of the mounting shaft 41, the transmission rod 53 is slidingly hinged to the connecting shaft 52, and a second motor 54 for driving the turntable 51 to rotate is fixedly mounted on the bracket 55.

[0052] When in use, the second motor 54 is controlled to be turned on, and the output shaft of the second motor 54 rotates to drive the turntable 51 to rotate on the bracket 55, driving the connecting shaft 52 to perform circular motion around the turntable 51, and sliding occurs between the connecting shaft 52 and the transmission rod 53, and the connecting shaft 52 and the transmission rod 53 rotate, so that the installation shaft 41 rotates back and forth on the drain pipe 17 through the transmission rod 53, which is convenient for control. Example 3

[0053] like Figures 1-9 As shown, based on the above embodiment, this embodiment further provides the following content:

[0054] In this embodiment, a flow disturbing mechanism 6 is installed on the rotating shaft 32 and on the side opposite to the fixing plate 31 and the cleaning brush 33 , and is used to disturb the flow of water flowing to the drain outlet 12 .

[0055] The design of the flow-disturbing mechanism 6 is utilized to achieve the effect of disturbing the water source flowing to the drain outlet 12, preventing the water from flowing directly to the filter plate 21, effectively preventing impurities and sludge in the water from flowing directly to the filter plate 21, and reducing the clogging of the filter holes of the filter plate 21.

[0056] In this embodiment, the spoiler mechanism 6 includes a plurality of spoiler plates 61 fixedly installed on the outside of the rotating shaft 32 in an annular array. A plurality of spoiler holes 611 are formed on the spoiler plates 61 .

[0057] The output shaft of the first motor 343 rotates, so that when the rotating shaft 32 rotates, the multiple spoilers 61 can be driven to rotate around the outside of the rotating shaft 32. When the spoiler 61 rotates, water passes through the spoiler hole 611, thereby achieving a disturbing effect on the water source. Moreover, when the spoiler 61 rotates and comes into contact with impurities, the impurities and sludge are attached to the spoiler 61, preventing impurities and sludge in the water from flowing directly to the filter plate 21, thereby reducing the clogging of the filter holes of the filter plate 21.

[0058] In this embodiment, a cleaning assembly 7 for scraping the surface of the spoiler 61 is installed on the fixed plate 31, and the cleaning assembly 7 includes: a connecting frame 71, which is fixedly installed on the fixed plate 31 and is located below the rotating shaft 32, and the end of the connecting frame 71 extends to the outside of the spoiler 61, and a hinged frame 72 is hinged on the side of the connecting frame 71 close to the rotating shaft 32, and a coil spring 73 connected to the hinged frame 72 is fixed on the connecting frame 71, and a rotating roller 74 that can fit with the spoiler 61 is rotatably installed at the free end of the hinged frame 72.

[0059] By utilizing the design of the cleaning assembly 7, when the rotating shaft 32 rotates to drive the spoiler 61 to rotate, multiple spoilers 61 contact the rotating roller 74 in turn. When the spoiler 61 contacts the rotating roller 74, a downward force is applied to the rotating roller 74, causing the hinged frame 72 to rotate on the connecting frame 71, the coil spring 73 is deformed, and the rotating roller 74 rotates on the hinged frame 72 and displaces along the surface of the spoiler 61 to clean the surface of the spoiler 61. When the spoiler 61 is no longer in contact with the rotating roller 74, the coil spring 73 returns to its natural state, driving the hinged frame 72 to reset, causing the rotating roller 74 to come into contact with the spoiler 61, achieving a knocking effect on the spoiler 61, thereby causing impurities and sludge attached to the spoiler 61 to fall into the sludge collection tank 16. Example 4

[0060] like Figures 1-9 As shown, based on the above embodiment, this embodiment further provides the following content:

[0061] In this embodiment, a plurality of diversion holes 24 are constructed on the mounting plate 2, and the longitudinal section of the diversion hole 24 is L-shaped. One end of the diversion hole 24 in the horizontal direction passes through the side of the mounting plate 2 away from the filter plate 21, and one end in the vertical direction passes through the bottom of the mounting plate 2 and is located on one side of the filter plate 21; a water level sensor 19 is fixedly installed in the treatment pool 1, and the background control system is communicated with the water level sensor 19. A water level threshold is preset in the background control system, and guide rails are symmetrically fixed in the treatment pool 1 and outside the drain outlet 12. The mounting plate 2 is inserted on the two guide rails, and a lifting component 8 acting on the mounting plate 2 is installed on the support block 15.

[0062] By utilizing the design of the diversion hole 24, when water flows toward the drain outlet 12, it will flow into the horizontal end of the diversion hole 24 and flow out through the vertical end of the diversion hole 24, thereby achieving a flushing and cleaning effect on the filter plate 21, and further avoiding clogging of the filter plate 21; the design of the water level sensor 19 realizes real-time monitoring of the water level in the treatment tank 1. When the water level in the treatment tank 1 is higher than the preset water level threshold of the background control system, the alarm in the background control can be activated to warn the staff; the design of the lifting component 8 facilitates the lifting of the mounting plate 2, thereby facilitating the disassembly and replacement of the filter plate 21.

[0063] In the embodiment, the lifting assembly 8 comprises a support frame 81 fixedly installed on the support block 15, a telescopic rod 82 in a vertical direction fixedly installed on the support frame 81, a telescopic end of the telescopic rod 82 fixedly connected with the mounting plate 2, a rotating ring 83 rotatably installed on the support frame 81, a threaded rod 86 in a vertical direction rotatably connected with the mounting plate 2, the threaded rod 86 threadedly penetrating through the rotating ring 83, a third motor 84 fixedly installed on the support frame 81, and an output shaft of the third motor 84 connected with the rotating ring 83 through a straight gear assembly 85.

[0064] In use, the third motor 84 is controlled to be turned on, the output shaft of the third motor 84 is rotated, the rotating ring 83 on the support frame 81 is driven to rotate through the straight gear assembly 85, the threaded rod 86 threadedly penetrating through the rotating ring 83 can be vertically upwardly moved, the mounting plate 2 is upwardly moved along the telescopic rod 82, and the mounting plate 2 is lifted, when the mounting plate 2 is installed, the output shaft of the third motor 84 is reversely rotated, the threaded rod 86 is vertically downwardly moved, and the mounting plate 2 is inserted on the two guide rails, the operation is simple, and the threaded rod 86 threadedly penetrating through the rotating ring 83 has self-locking property, so that the mounting plate 2 is fixed.

[0065] Working principle and use flow of the present application:

[0066] When the chemical wastewater is treated:

[0067] Oxygen is conveyed into the treatment tank 1, the chemical wastewater is conveyed into the treatment tank 1 through the water inlet 11, the wastewater is in an aerobic environment, the chemical wastewater is contacted with the fixed film bioreactor 13, so that the chemical wastewater is degraded and treated, the treated wastewater is discharged into the drain pipe 17 through the water outlet 12, the sludge and impurities in the water are contacted with the filter plate 21, the filter plate 21 filters the impurities and sludge, during the period, the first motor 343 is controlled to rotate the rotating shaft 341 on the mounting plate 2, so that the rotating shaft 32 is driven to rotate through the bevel gear assembly 342, the cleaning brush 33 is driven to rotate around the rotating shaft 32, the filter plate 21 is cleaned, the impurities and sludge are discharged into the sludge collecting tank 16 through the sludge discharge port under the action of gravity, and when the water flows to the water outlet 12, the water flows into the horizontal end of the flow guide hole 24 and flows out through the vertical end of the flow guide hole 24, so that the filter plate 21 is washed and cleaned;

[0068] When the rotating shaft 32 rotates, it drives the plurality of spoilers 61 to rotate around the outside of the rotating shaft 32. When the spoiler 61 rotates, water passes through the spoiler hole 611, thereby achieving the effect of disturbing the flow of water. When the spoiler 61 rotates and comes into contact with impurities, the impurities and sludge adhere to the spoiler 61, preventing the impurities and sludge in the water from flowing directly to the filter plate 21 and reducing the likelihood of the filter holes of the filter plate 21 becoming blocked. When the rotating shaft 32 rotates and drives the spoiler 61 to rotate, the plurality of spoilers 61 come into contact with the rotating roller 74 in turn. When the spoiler 61 comes into contact with the rotating roller 74, it exerts a downward pressure on the rotating roller 74, causing the hinged frame 72 to rotate on the connecting frame 71, the coil spring 73 to deform, the rotating roller 74 to rotate on the hinged frame 72 and displace along the surface of the spoiler 61, thereby cleaning the surface of the spoiler 61. When the spoiler 61 is not in contact with the rotating roller 74, the coil spring 73 returns to its natural state, causing the hinged frame 72 to reset and the rotating roller 74 to come into contact with the spoiler 61, thereby knocking the spoiler 61 and causing the impurities and sludge adhering to the spoiler 61 to fall into the sludge collection tank 16.

[0069] When the flow sensor 18 detects that the water flow in the drain pipe 17 is lower than the preset flow threshold of the background control system, the background control system controls the second motor 54 to start, the mounting shaft 41 reciprocates on the drain pipe 17, and the background control system controls the high-pressure water pump to deliver clean water to the water inlet pipe 46. The driving assembly 5 causes the mounting shaft 41 to reciprocate on the drain pipe 17, thereby causing the plurality of water outlet pipes 43 to reciprocate. After the high-pressure water pump delivers clean water to the water inlet pipe 46, the clean water enters the water pipe 42 through the rotating joint 45 and the one-way valve 44, and is then discharged through the plurality of water outlet pipes 43, thereby causing the clean water to pass through the filter plate 21 and flow into the treatment tank 1, achieving the effect of cleaning the filter holes of the filter plate 21 and preventing the filter holes from becoming blocked, which would reduce the efficiency of wastewater treatment. At the same time, the water level sensor 19 monitors the water level in the treatment tank 1 in real time. When the water level in the treatment tank 1 is higher than the preset water level threshold of the background control system, the alarm in the background control system can be activated to alert the staff.

[0070] When it is necessary to replace the filter plate 21, the third motor 84 is controlled to start, the output shaft of the third motor 84 rotates, the rotating ring 83 is driven to rotate on the support frame 81 through the straight gear assembly 85, and the threaded rod 86 is threaded through the rotating ring 83, causing the threaded rod 86 to move vertically upward, the mounting plate 2 to move upward on the telescopic rod 82, and the mounting plate 2 to be lifted, thereby achieving the effect of lifting the mounting plate 2 and causing the filter plate 21 to be lifted above the treatment tank 1, so that the filter plate 21 can be disassembled and replaced. After replacement, the output shaft of the third motor 84 is controlled to rotate in the opposite direction, causing the threaded rod 86 to move vertically downward, the mounting plate 2 to be inserted into the two guide rails, and the mounting plate 2 to be installed. The threaded rod 86 threaded through the rotating ring 83 has self-locking property, thereby achieving the effect of fixing the mounting plate 2.

[0071] It is to be noted that the relational terms herein, such as first and second, and the like, are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0072] The above embodiments are only used to illustrate the technical solutions of the present application, not to limit it; although the above-mentioned embodiments of the present application are described in detail, those skilled in the art should understand that the technical solutions recorded in the above-mentioned embodiments can be modified, or some technical features can be replaced by equivalent; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A chemical wastewater biological treatment device, characterized by: The treatment tank comprises a treatment pool with an open top, a water inlet on one side of the treatment pool, and a drainage outlet at the bottom of the other side of the treatment pool; a fixed membrane bioreactor is fixed in the treatment pool; a sludge discharge outlet is formed at the bottom of the treatment pool and close to the drainage outlet; Symmetrical support blocks are fixed at the bottom of the treatment tank; a sludge collection tank is arranged on the opposite side of the two support blocks and is in communication with the sludge discharge outlet; a discharge hole is formed in the sludge collection tank; a plugging head is threadedly installed on the sludge collection tank and is used to plug the discharge hole; An installation plate is installed in the treatment tank and at the drainage outlet; a filter plate is detachably installed on the installation plate and is used to plug the drainage outlet; a cleaning mechanism is installed on the installation plate and is used to clean the filter plate; A drainage pipe is fixedly installed on the treatment tank and is in communication with the drainage outlet; a flow sensor is fixedly installed in the drainage pipe; a flushing assembly is installed in the drainage pipe and between the flow sensor and the filter plate and is used to flush the filter plate; The cleaning mechanism comprises: A fixed plate is fixedly installed on the installation plate by screws; a rotating shaft is rotatably installed on the fixed plate in a horizontal direction; a cleaning brush is fixed to the end of the rotating shaft and is in contact with the filter plate; a driving member is installed on the installation plate and is used to drive the rotating shaft to rotate; The driving member comprises: A rotating shaft is vertically and rotatably installed on the installation plate; the top end of the rotating shaft penetrates through the installation plate and extends into the installation slot; the bottom end of the rotating shaft is connected to the rotating shaft through a bevel gear assembly; a first motor is fixedly installed on the installation plate and is used to drive the rotating shaft to rotate; a sealing plate is fixedly installed on the installation plate by screws and is used to seal the opening of the installation slot; The flushing assembly comprises: An installation shaft is rotatably installed on the drainage pipe in a horizontal direction; a water pipe is fixedly installed on the installation shaft; a plurality of water outlet pipes are fixedly installed on the water pipe in an equidistant array and are in communication with the water pipe; one end of the water pipe penetrates through the installation shaft and extends to the outside of the drainage pipe; a one-way valve is fixedly installed on the drainage pipe; an inlet pipe is installed on the drainage pipe through a rotating joint; a driving assembly is installed on the drainage pipe and acts on the installation shaft and is used to make the installation shaft reciprocatingly rotate on the drainage pipe; A flow disturbing mechanism is installed on the opposite side of the rotating shaft and the cleaning brush and is used to disturb the flow of water flowing to the drainage outlet; The flow disturbing mechanism comprises a plurality of flow disturbing plates which are fixedly installed on the outside of the rotating shaft in an annular array; a plurality of flow disturbing holes are formed in the flow disturbing plates; A cleaning assembly is installed on the fixed plate and is used to scrape the surface of the flow disturbing plate; the cleaning assembly comprises: A connecting frame is fixedly installed on the fixed plate below the rotating shaft; the end of the connecting frame extends to the outside of the flow disturbing plate; a hinged frame is hingedly connected to the side of the connecting frame close to the rotating shaft; a coil spring is fixedly connected to the hinged frame; a rotating roller is rotatably installed on the free end of the hinged frame and is in contact with the flow disturbing plate.

2. The apparatus according to claim 1, wherein: The driving assembly includes a bracket fixedly mounted on the drain pipe, a turntable is rotatably mounted on the bracket, a connecting shaft is fixed at an eccentric position of the turntable, a transmission rod is fixed at the end of the mounting shaft, the transmission rod is slidingly hinged to the connecting shaft, and a second motor for driving the turntable to rotate is fixedly mounted on the bracket.

3. The device according to claim 1, characterized in that: The mounting plate is provided with a plurality of guide holes, each of which is L-shaped in longitudinal section, with one end of the guide hole penetrating the side of the mounting plate away from the filter plate in the horizontal direction and one end of the guide hole penetrating the bottom of the mounting plate and located on one side of the filter plate in the vertical direction; A water level sensor is fixedly installed in the treatment pool, guide rails are symmetrically fixed in the treatment pool and outside the drain outlet, a mounting plate is inserted on the two guide rails, and a lifting component acting on the mounting plate is installed on the support block.

4. The apparatus according to claim 3, wherein: The lifting assembly comprises: The support frame is fixedly mounted on the support block, and a telescopic rod in a vertical direction is fixedly mounted on the support frame, and the telescopic end of the telescopic rod is fixedly connected to the mounting plate. A rotating ring is rotatably mounted on the support frame, and a threaded rod in a vertical direction is rotatably connected to the mounting plate, and the thread of the threaded rod passes through the rotating ring. A third motor is fixedly mounted on the support frame, and the output shaft of the third motor is connected to the rotating ring through a spur gear assembly.

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