Ceramic Membrane Bioreactor

Abstract

The present invention provides a ceramic membrane bioreactor, which includes a base. A reaction tank body is fixedly installed on the top of the base. A filtering mechanism is fixedly installed on the base on one side of the reaction tank body. An aeration chamber, a sedimentation chamber, a reaction chamber, and a storage chamber are respectively arranged inside the reaction tank body. An adjusting mechanism and a feeding mechanism are respectively assembled on the support frame. The bottom of the adjusting mechanism is hoisted with a reaction mechanism. A load chamber is fixedly installed in the reaction chamber below the reaction mechanism. The bottom end of the feeding mechanism extends into the load chamber. A backwashing assembly is assembled on the top of the reaction chamber. By the mutual cooperation of the adjusting mechanism and the reaction mechanism, the inner and outer walls of the load chamber are cleaned during lifting to remove the dirt on the load chamber. During separation, docking flushing is carried out in cooperation with the backwashing assembly, and the reaction mechanism in the separation state can be cleaned more thoroughly, achieving a good dredging effect.

Description

[0001] This application is a divisional application of the invention application with the application date of September 3, 2024, the Chinese application number of 2024112248656, and the invention name of "An anti-blocking self-cleaning sewage ceramic membrane bioreactor". Technical Field

[0002] The present invention relates to the technical field of sewage treatment, and specifically relates to a ceramic membrane bioreactor. Background Art

[0003] The sewage treatment process usually includes a series of physical, chemical, and biological reactions, aiming to remove pollutants in the water and make it meet the standards for safe discharge or reuse; among them, biological treatment is mainly used, and microorganisms are used to decompose organic matter in the sewage, which is usually achieved through the activated sludge method or the biofilm method; in the activated sludge method, microorganisms are massively propagated in the aeration tank, consuming organic matter and converting it into carbon dioxide, water, and cell substances, while in the biofilm method, microorganisms are cultivated on the filler to form a biofilm, and when the sewage flows through, the microorganisms on the biofilm adsorb and decompose the organic matter.

[0004] Among them, ceramic membrane sewage treatment is an advanced sewage treatment method that combines biological treatment and membrane separation technology. Combined with biological treatment technology, such as a membrane bioreactor (MBR), the ceramic membrane can provide an efficient solid-liquid separation environment, increase the biomass in the bioreactor, and improve the sewage treatment efficiency; however, during the sewage filtration process, the ceramic membrane may capture and accumulate impurities such as suspended particles, organic matter, and inorganic salts. If these substances are not cleaned in time, they may block the membrane pores, and when treating liquids containing microorganisms, the microorganisms may grow on the surface or inside of the membrane, forming a biofilm, resulting in a decrease in membrane flux and a decline in the operating performance of the reactor.

[0005] Therefore, this application proposes a ceramic membrane bioreactor. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the present invention provides a ceramic membrane bioreactor, which solves the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0008] A ceramic membrane bioreactor, comprising a base, on the top of the base is fixedly installed a reaction tank body, on the base on one side of the reaction tank body is fixedly installed a filtering mechanism, inside the reaction tank body are respectively arranged an aeration chamber, a sedimentation chamber, a reaction chamber, and a storage chamber, and between the aeration chamber and the sedimentation chamber is provided a first water guiding hole, between the sedimentation chamber and the reaction chamber is provided a second water guiding hole, on the base is assembled an aeration assembly, and the working ends of the aeration assembly respectively extend into the aeration chamber and the reaction chamber, at the bottom of the storage chamber are provided a number of collection tanks, on the top of the base is assembled a sludge pumping assembly, and the working end of the sludge pumping assembly extends into the collection tank, on the top of the reaction tank body is fixedly installed a support frame, on the support frame are respectively assembled an adjusting mechanism and a feeding mechanism, at the bottom of the adjusting mechanism is suspended a reaction mechanism, inside the reaction chamber below the reaction mechanism is fixedly installed a load chamber, the bottom end of the feeding mechanism extends into the load chamber, on the top of the reaction chamber is assembled a backwashing assembly, and the input end of the backwashing assembly is arranged in the storage chamber; the adjusting mechanism includes an electric telescopic cylinder, an installation cavity, an n-shaped hanging frame, a guide seat, a lead screw, and a motor; the feeding mechanism includes a feeding assembly and a collection wire mesh frame; the reaction mechanism includes a bearing assembly, a guiding assembly, a filtering assembly, a liquid guiding assembly, a scraping and cleaning assembly, a positioning joint, and a positioning plate. On the top of the support frame is fixedly installed an electric telescopic cylinder, the output end of the electric telescopic cylinder is butt-jointed with an installation cavity, inside the installation cavity is butt-jointed with a lead screw, and on the side of the installation cavity is fixedly installed a motor, the output end of the motor is installed and connected with the lead screw, a guide seat is sleeved on the lead screw, at the bottom of the guide seat is fixedly installed an n-shaped hanging frame, at the bottom of the n-shaped hanging frame is fixedly installed a guiding assembly, at the bottom of the guiding assembly is butt-jointed with a bearing assembly, between the bearing assembly and the guiding assembly are butt-jointed a number of filtering assemblies, at the top of the guiding assembly is butt-jointed with a liquid guiding assembly, at the bottom of the bearing assembly is fixedly installed a scraping and cleaning assembly, and the scraping and cleaning assembly is assembled with the load chamber, on the inner wall of the reaction chamber are fixedly installed two groups of positioning plates, at the top of the guiding assembly is fixedly installed a positioning joint, and the positioning joint corresponds to the positioning plate, on the top of the support frame is clamped with a collection wire mesh frame, on the top of the support frame is assembled a feeding assembly, and the working end of the feeding assembly extends into the load chamber;

[0009] The backwashing assembly includes a water guiding branch pipe, a support seat, a first flushing joint, and a second flushing joint. On the top of the reaction chamber is fixedly installed a support seat, on the top of the support seat is erected a water guiding branch pipe, at the bottom of the water guiding branch pipe are respectively butt-jointed and installed a connected first flushing joint and a second flushing joint, and the first flushing joint is longer than the second flushing joint, and the first flushing joint and the second flushing joint are in butt-joint fit with the filtering assembly.

[0010] Furthermore, the filtering mechanism includes a filtering tank body, a lifting pump, a first water inlet, a lifting pipe, a water guiding disc, and a water guiding port. The filtering tank body is fixedly installed at the top of the base. The top of the filtering tank body is fixedly installed with a cover plate and a filter mesh plate. The top of the cover plate is butt-jointed with a first water inlet extending into the filtering tank body. The bottom of the first water inlet is butt-jointed with a water guiding disc, and water guiding ports are evenly distributed at the bottom of the water guiding disc. A filter mesh plate is fixedly installed inside the filtering tank body. A lifting pump is arranged at the bottom of the filtering tank body. The output end of the lifting pump is butt-jointed with a lifting pipe, and the lifting pipe is communicated with the aeration chamber.

[0011] Furthermore, the aeration assembly includes an aerator, a main air pipe, a first branch air pipe, a gas guiding disc, and aeration holes. The aerator is fixedly installed at the top of the base. The output end of the aerator is butt-jointed with a main air pipe, and the main air pipe extends above the reaction tank body. Two groups of first branch air pipes are butt-jointed at the end of the main air pipe. The two groups of first branch air pipes extend into the aeration chamber and the reaction chamber respectively. The bottom end of the first branch air pipe is butt-jointed with a gas guiding disc, and aeration holes are evenly distributed at the top of the gas guiding disc. Aeration is carried out in the aeration chamber and the reaction chamber through the aeration holes on the gas guiding disc.

[0012] Furthermore, the sludge pumping assembly includes a sludge pump, a main sludge pumping pipe, and sludge pumping sub-pipes. The sludge pump is fixedly installed at the top of the base. The output end of the sludge pump is butt-jointed with a main sludge pumping pipe, and several sludge pumping sub-pipes are butt-jointed on the main sludge pumping pipe. The sludge pumping sub-pipes extend into the collection tank, and the sludge in the collection tank is pumped through the suction holes at the bottom of the sludge pumping sub-pipes.

[0013] Furthermore, the adjusting mechanism further includes guide rods and sliding components. Two groups of guide rods are installed through the support frame, and the bottom ends of the guide rods are installed and connected with the installation cavity. A sliding component is assembled inside the installation cavity, and the installation cavity is slidably connected with the guide seat through the sliding component.

[0014] Furthermore, the material changing assembly includes a material changing cylinder, a sealing cover, a material guiding pipe, a first input pipe, a second output pipe, a second input pipe, a first electric valve, a first output pipe, a liquid pumping pipe, a second electric valve, and a circulation pump. A material guiding pipe is installed through the support frame, and a liquid pumping pipe is installed through the support frame. The bottom ends of the material guiding pipe and the liquid pumping pipe extend into the load room. The circulation pump is fixedly installed at the top of the support frame. The output end of the circulation pump is butt-jointed with a first output pipe, and the end of the first output pipe is butt-jointed with a second output pipe. One end of the second output pipe is located above the collection mesh frame and the other end is communicated with the material changing cylinder. Second electric valves are assembled at both ends of the second output pipe. The input end of the circulation pump is butt-jointed with a first input pipe, and the first input pipe is communicated with the material changing cylinder. A second input pipe is butt-jointed on the first input pipe, and the end of the second input pipe is installed and communicated with the liquid pumping pipe. First electric valves are assembled on both the second input pipe and the first input pipe.

[0015] Further, the bearing assembly includes a download plate, a spring, a support piece, a guide piece, and a pull rod. The bottom of the filtering assembly is jointly assembled with the download plate. The download plate is evenly distributed with guide ports, and the guide ports correspond to the filtering assembly. The guide ports are clamped with guide pieces, and a pull rod is installed through the guide pieces. A support piece is fixedly installed at the bottom of the pull rod, and a spring is sleeved on the pull rod between the guide piece and the support piece;

[0016] The guiding assembly includes an upload plate, an outer sleeve rod, an inner sleeve rod, a connecting plate, and a mud scraping plate. The top of the filtering assembly is butt-jointed and installed with the upload plate. The top of the pull rod is fixedly connected to the bottom of the upload plate. An outer sleeve rod is fixedly installed on one side of the upload plate. The inner sleeve rod is sleeved in the outer sleeve rod, and the bottom of the inner sleeve rod is fixedly installed with a connecting plate. A plurality of mud scraping plates are fixedly installed on the connecting plate, and the mud scraping plates are in contact with the bottom surface of the reaction chamber.

[0017] Further, the filtering assembly includes a lower outer shell, a first ceramic filter membrane, a lower docking piece, an upper outer shell, a second ceramic filter membrane, a second water inlet, and an upper docking piece. The top of the download plate is butt-jointed and installed with the lower outer shell, and the bottom of the lower outer shell is butt-jointed and installed with a second water inlet penetrating the download plate. The top of the lower outer shell is fixedly installed with a lower docking piece, and an upper docking piece is docked and installed in the lower docking piece. The lower outer shell is docked and installed with the upper outer shell through the lower docking piece and the upper docking piece. A second ceramic filter membrane is installed in the upper outer shell, and a first ceramic filter membrane is docked and installed inside the lower outer shell. The first ceramic filter membrane and the second ceramic filter membrane are connected and communicated with each other;

[0018] The liquid guiding assembly includes a clear water branch pipe, a clear water main pipe, a liquid guiding square pipe, a sewage outlet, and a one-way water injection port. The top of the upper outer shell is butt-jointed and installed with a clear water main pipe penetrating the upload plate, and the clear water main pipe is communicated with the second ceramic filter membrane. The top of the clear water main pipe is jointly butt-jointed and installed with a liquid guiding square pipe. The top of the liquid guiding square pipe is butt-jointed and installed with a one-way water injection port. The end face of the liquid guiding square pipe is butt-jointed and installed with a sewage outlet. A clear water branch pipe is butt-jointed and installed on one side of the upper outer shell, and the clear water branch pipe penetrates the upload plate. The top of the clear water branch pipe is jointly butt-jointed and installed with the clear water main pipe.

[0019] Further, the scraping and cleaning assembly includes a connecting rod, an upper connecting frame, a lower connecting frame, an external scraping and cleaning plate, and an internal scraping and cleaning plate. Two groups of connecting rods are fixedly installed at the bottom of the download plate, and the connecting rods extend into the load chamber. An upper connecting frame is fixedly installed on the connecting rod outside the load chamber, and an external scraping and cleaning plate is fixedly installed at the end of the upper connecting frame. The external scraping and cleaning plate is located around the outside of the load chamber. A lower connecting frame is fixedly installed on the connecting rod inside the load chamber, and an internal scraping and cleaning plate is butt-jointed and installed at the end of the lower connecting frame. The internal scraping and cleaning plate is located around the inside of the load chamber.

[0020] Furthermore, the recoil assembly includes a main water guide pipe, a water suction pipe, and a water pump. A water pump is installed at the bottom of the storage chamber. The output end of the water pump is butt-connected with a water suction pipe. One ends of the water guide branch pipes are jointly butt-connected with a communicating main water guide pipe, and the top of the water suction pipe is installed and communicated with the main water guide pipe.

[0021] The present invention provides a ceramic membrane bioreactor. Compared with the prior art, it has the following beneficial effects:

[0022] 1. By mutually cooperating the adjustment mechanism and the reaction mechanism, the lifting and separation of the reaction mechanism can be achieved. When lifting, the inner and outer walls of the load chamber are cleaned to remove the dirt on the load chamber. When separating, the reaction mechanism can be promoted to enter the cleaning state, and it is butt-connected and flushed in cooperation with the recoil assembly. The reaction mechanism in the separated state can be cleaned more thoroughly, achieving a good dredging effect. At the same time, the sludge deposited at the bottom of the reaction chamber can be scraped, and the sludge is pushed into the collection tank for centralized suction, ensuring more efficient suction and discharge of the sludge.

[0023] 2. By mutually cooperating the material replacement mechanism and the load chamber, the reactor realizes automatic replacement of the packing. The loaded packing in the load chamber can be sucked out by suction, and the state can be switched to reversely transport the new packing into the load chamber, making the operation more convenient for personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 Shows a schematic structural diagram of the first perspective of the ceramic membrane bioreactor of the present invention;

[0026] Figure 2 Shows a schematic structural diagram of the second perspective of the ceramic membrane bioreactor of the present invention;

[0027] Figure 3 Shows a schematic diagram of the internal assembly structure of the ceramic membrane bioreactor of the present invention;

[0028] Figure 4 Shows a schematic diagram of the internal structure of the reaction chamber of the present invention;

[0029] Figure 5 Shows a schematic diagram of the composition structure of the filtration mechanism of the present invention;

[0030] Figure 6Shows the schematic assembly structure diagram of the dirt scraping component and the load chamber of the present invention;

[0031] Figure 7 Shows the schematic assembly structure diagram of the reaction mechanism and the recoil component of the present invention;

[0032] Figure 8 Shows the schematic diagram of the first component structure of the reaction mechanism of the present invention;

[0033] Figure 9 Shows the schematic diagram of the second component structure of the reaction mechanism of the present invention;

[0034] Figure 10 Shows the schematic diagram of the third component structure of the reaction mechanism of the present invention;

[0035] Figure 11 Shows the schematic assembly structure diagram of the bearing component and the filtering component of the present invention;

[0036] Figure 12 Shows the schematic assembly structure diagram of the filtering component and the liquid guiding component of the present invention;

[0037] Figure 13 Shows the schematic diagram of the composition structure of the adjustment mechanism of the present invention;

[0038] Figure 14 Shows the schematic assembly structure diagram of the material changing mechanism and the adjustment mechanism of the present invention;

[0039] Figure 15 Shows the schematic diagram of the composition structure of the material changing component of the present invention;

[0040] As shown in the figure: 1. Base; 2. Filter mechanism; 21. Filter tank body; 22. Lift pump; 23. First water inlet; 24. Lift pipe; 25. Water guide plate; 26. Water guide port; 27. Cover plate; 28. Filter screen plate; 3. Aeration assembly; 31. Aerator; 32. Main air pipe; 33. First bronchus; 34. Air guide plate; 35. Aeration holes; 4. Reaction tank body; 41. Aeration chamber; 411. First water guide hole; 42. Sedimentation chamber; 421. Second water guide hole; 43. Reaction chamber; 44. Storage chamber; 45. Collection tank; 5. Mud pumping assembly; 51. Mud pumping pump; 52. Mud pumping main pipe; 53. Mud pumping sub-pipe; 6. Adjustment mechanism; 61. Electric telescopic cylinder; 62. Guide rod; 63. Installation cavity; 64. Sliding part; 65. N-shaped hanging bracket; 66. Guide seat; 67. Lead screw; 68. Motor; 7. Refueling mechanism; 71. Refueling assembly; 711. Refueling cylinder; 712. Sealing cover; 713. Guide pipe; 714. Input pipe 1; 715. Output pipe 2; 716. Input pipe 2; 717. First electric valve; 718. Output pipe 1; 719. Liquid extraction pipe; 7110. Second electric valve; 7111. Circulation pump; 72. Collection wire mesh frame; 8. Reaction mechanism; 81. Bearing assembly; 811. Download plate; 8111. Guide port; 812. Spring; 813. Support piece; 814. Guide piece; 815. Pull rod; 82. Guide component; 821. Upload plate; 822. Outer sleeve rod; 823. Inner sleeve rod; 824. Connecting plate; 825. Mud scraping plate; 83. Filter component; 831. Lower outer shell; 832. First ceramic filter membrane; 833. Lower docking piece; 834. Upper outer shell; 835. Second ceramic filter membrane; 836. Second water inlet; 837. Upper docking piece; 84. Liquid guide component; 841. Clear water branch pipe; 842. Clear water main pipe; 843. Liquid guide square pipe; 844. Sewage outlet; 845. One-way water injection port; 85. Scum scraping component; 851. Connecting rod; 852. Upper connecting frame; 853. Lower connecting frame; 854. External scum scraping plate; 855. Internal scum scraping plate; 86. Positioning joint; 87. Positioning plate; 9. Load room; 10. Backwashing assembly; 101. Water guide main pipe; 102. Water guide branch pipe; 103. Support seat; 104. First flushing joint; 105. Second flushing joint; 106. Water extraction pipe; 107. Water pump; 11. Support frame. Detailed implementation manners

[0041] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0042] Embodiment 1

[0043] To solve the technical problems in the background art, the following ceramic membrane bioreactor is provided:

[0044] Combined Figures 1 - 15 As shown, a ceramic membrane bioreactor provided by the present invention includes a base 1. A reaction tank body 4 is fixedly installed on the top of the base 1. A filtering mechanism 2 is fixedly installed on the base 1 on one side of the reaction tank body 4. An aeration chamber 41, a sedimentation chamber 42, a reaction chamber 43, and a storage chamber 44 are respectively arranged inside the reaction tank body 4. A first water guiding hole 411 is arranged between the aeration chamber 41 and the sedimentation chamber 42, and a second water guiding hole 421 is arranged between the sedimentation chamber 42 and the reaction chamber 43. An aeration assembly 3 is assembled on the base 1, and the working ends of the aeration assembly 3 respectively extend into the aeration chamber 41 and the reaction chamber 43. A plurality of collection tanks 45 are arranged at the bottom of the storage chamber 44. A sludge pumping assembly 5 is assembled on the top of the base 1, and the working end of the sludge pumping assembly 5 extends into the collection tank 45. A support frame 11 is fixedly installed on the top of the reaction tank body 4. An adjustment mechanism 6 and a feeding mechanism 7 are respectively assembled on the support frame 11. A reaction mechanism 8 is suspended at the bottom of the adjustment mechanism 6. A load chamber 9 is fixedly installed in the reaction chamber 43 below the reaction mechanism 8. The bottom end of the feeding mechanism 7 extends into the load chamber 9. A backwashing assembly 10 is assembled on the top of the reaction chamber 43, and the input end of the backwashing assembly 10 is arranged in the storage chamber 44;

[0045] During the operation of the reactor, the sewage will first pass through the filtering mechanism 2 for initial filtration. The filtering mechanism 2 filters out large particulate impurities and substances in the sewage, and then the sewage is lifted into the aeration chamber 41 to wait for aeration. The oxygen in the air is dissolved into the sewage through the aeration component 3 to increase the dissolved oxygen content of the water body. During the aeration process, the rising bubbles will stir the sewage, enabling the sewage to come into full contact with the microorganisms and be evenly distributed, thereby improving the reaction efficiency. After precipitation in the sedimentation chamber 42, the sewage enters the reaction chamber 43 to wait for the reaction. The microorganisms in the sewage are retained by the packing in the loading chamber 9. The reaction mechanism 8 uses a ceramic membrane to filter and purify the sewage, and the clear water is analyzed and discharged. By cooperating with each other between the adjustment mechanism 6 and the reaction mechanism 8, the lifting and separation of the reaction mechanism 8 can be achieved. During the lifting process, the inner and outer walls of the loading chamber 9 are cleaned to remove the dirt on the loading chamber 9. During the separation process, it can not only prompt the reaction mechanism 8 to enter the cleaning state and cooperate with the backwashing component 10 for butt joint flushing, and the reaction mechanism 8 in the separation state can be cleaned more thoroughly, achieving a good dredging effect, but also scrape the sludge deposited at the bottom of the reaction chamber 43, prompting the sludge to be pushed into the collection tank 45 for centralized suction, ensuring that the sludge is sucked and discharged more efficiently. By cooperating with each other between the material changing mechanism 7 and the loading chamber 9, the reactor realizes the automatic replacement of the packing. The loaded packing in the loading chamber 9 can be sucked out by means of suction, and the state can be switched to reversely transport the new packing into the loading chamber 9, making the operation more convenient for the operator.

[0046] The adjusting mechanism 6 includes an electric telescopic cylinder 61, an installation cavity 63, an n-shaped hanging bracket 65, a guide seat 66, a lead screw 67, and a motor 68; the material changing mechanism 7 includes a material changing assembly 71 and a collection mesh frame 72; the reaction mechanism 8 includes a bearing assembly 81, a guiding assembly 82, a filtering assembly 83, a liquid guiding assembly 84, a scraping and cleaning assembly 85, a positioning joint 86, and a positioning plate 87. An electric telescopic cylinder 61 is fixedly installed at the top of the support frame 11. The output end of the electric telescopic cylinder 61 is butt-connected with an installation cavity 63. A lead screw 67 is butt-connected inside the installation cavity 63. A motor 68 is fixedly installed on the side of the installation cavity 63. The output end of the motor 68 is installed and connected to the lead screw 67. A guide seat 66 is sleeved on the lead screw 67. An n-shaped hanging bracket 65 is fixedly installed at the bottom of the guide seat 66. A guiding assembly 82 is fixedly installed at the bottom of the n-shaped hanging bracket 65. A bearing assembly 81 is butt-connected at the bottom of the guiding assembly 82. A plurality of filtering assemblies 83 are butt-connected between the bearing assembly 81 and the guiding assembly 82. A liquid guiding assembly 84 is butt-connected at the top of the guiding assembly 82. A scraping and cleaning assembly 85 is fixedly installed at the bottom of the bearing assembly 81. And the scraping and cleaning assembly 85 is assembled with the load chamber 9. Two groups of positioning plates 87 are fixedly installed on the inner wall of the reaction chamber 43. A positioning joint 86 is fixedly installed at the top of the guiding assembly 82. And the positioning joint 86 corresponds to the positioning plate 87. A collection mesh frame 72 is clamped at the top of the support frame 11. A material changing assembly 71 is assembled at the top of the support frame 11. And the working end of the material changing assembly 71 extends into the load chamber 9;

[0047] The backwashing assembly 10 includes a water guiding branch pipe 102, a support seat 103, a first flushing joint 104, and a second flushing joint 105. A support seat 103 is fixedly installed at the top of the reaction chamber 43. A water guiding branch pipe 102 is erected on the top of the support seat 103. The bottom of the water guiding branch pipe 102 is respectively butt-connected with a communicated first flushing joint 104 and a second flushing joint 105. And the first flushing joint 104 is longer than the second flushing joint 105. The first flushing joint 104 and the second flushing joint 105 are in butt joint and cooperation with the filtering assembly 83;

[0048] During this period, the filtering assembly 83 is hoisted by using the n-shaped hanging bracket 65. The top and bottom of the filtering assembly 83 are clamped by the bearing assembly 81 and the guiding assembly 82. The liquid filtered by the filtering assembly 83 will be shunted and exported through the liquid guiding assembly 84. And the guiding assembly 82 and the scraping and cleaning assembly 85 cooperate with each other, so as to drive the scraping and cleaning assembly 85 to perform scraping and cleaning operations on the inner and outer walls of the load chamber 9 to reduce adherents; when replacing the load filler, only need to introduce the old filler into the collection mesh frame 72 and use the material changing assembly 71 to replace the old and new load fillers;

[0049] During backwashing, the filter assembly 83 is separated, and after rising, the separated filter assembly 83 is docked with the first flushing joint 104 and the second flushing joint 105, so that the purified clean water can be used to backflush the filter assembly 83 to clean and dredge the inside of the filter assembly 83.

[0050] Embodiment 2

[0051] As Figure 1 and Figure 15 shown, based on the above embodiment, the following content is further given in this embodiment:

[0052] In this embodiment, the filtering mechanism 2 includes a filtering tank body 21, a lifting pump 22, a first water inlet 23, a lifting pipe 24, a water guiding disc 25, and a water guiding port 26. The filtering tank body 21 is fixedly installed at the top of the base 1. A cover plate 27 and a filter mesh plate 28 are fixedly installed at the top of the filtering tank body 21. The first water inlet 23 extending into the filtering tank body 21 is butt-joint installed at the top of the cover plate 27. The water guiding disc 25 is butt-joint installed at the bottom of the first water inlet 23, and water guiding ports 26 are evenly distributed at the bottom of the water guiding disc 25. The filter mesh plate 28 is fixedly installed inside the filtering tank body 21. The lifting pump 22 is arranged at the bottom of the filtering tank body 21. The output end of the lifting pump 22 is butt-jointed with the lifting pipe 24, and the lifting pipe 24 is communicated with the aeration chamber 41.

[0053] During this period, the sewage enters the water guiding disc 25 through the first water inlet 23, and then the sewage is discharged through the water guiding ports 26 on the water guiding disc 25. At this time, the sewage will flow into the filter mesh plate 28 for filtration. At this time, large particle impurities will remain on the filter mesh plate 28, and then enter the filtering tank body 21 for collection. Then, the lifting pump 22 is started, and the aeration chamber 41 is entered by using the lifting pipe 24 for aeration operation.

[0054] In this embodiment, the aeration assembly 3 includes an aerator 31, a main air pipe 32, a first branch air pipe 33, a gas guiding disc 34, and aeration holes 35. The aerator 31 is fixedly installed at the top of the base 1. The output end of the aerator 31 is butt-joint installed with the main air pipe 32, and the main air pipe 32 extends above the reaction tank body 4. Two groups of first branch air pipes 33 are butt-joint installed at the end of the main air pipe 32. The two groups of first branch air pipes 33 respectively extend into the aeration chamber 41 and the reaction chamber 43. The gas guiding disc 34 is butt-joint installed at the bottom end of the first branch air pipe 33, and aeration holes 35 are evenly distributed at the top of the gas guiding disc 34. The aeration chamber 41 and the reaction chamber 43 are aerated through the aeration holes 35 on the gas guiding disc 34.

[0055] During this period, the aerator 31 is started, and the aerator 31 conveys the gas into the main air pipe 32, and then conveys the gas into the first branch air pipe 33 through the main air pipe 32;

[0056] Gas is introduced into the air distribution disc 34 through the first bronchus 33, and then discharged through the air outlet holes 35 on the air distribution disc 34. The gas aerates the sewage;

[0057] Aeration operations are respectively performed on the sewage in the aeration chamber 41 and the reaction chamber 43.

[0058] In this embodiment, the sludge extraction assembly 5 includes a sludge extraction pump 51, a main sludge extraction pipe 52, and auxiliary sludge extraction pipes 53. The sludge extraction pump 51 is fixedly installed at the top of the base 1. The output end of the sludge extraction pump 51 is butt - connected with the main sludge extraction pipe 52. A number of auxiliary sludge extraction pipes 53 are butt - connected to the main sludge extraction pipe 52. The auxiliary sludge extraction pipes 53 extend into the collection tank 45, and the auxiliary sludge extraction pipes 53 extract the sludge in the collection tank 45 through the suction holes at the bottom.

[0059] The dirt needs to be cleaned regularly;

[0060] After reaching the cleaning time, the sludge extraction pump 51 can be started, and under the action of negative pressure, the extraction is completed by using the main sludge extraction pipe 52 and the auxiliary sludge extraction pipes 53. Since the auxiliary sludge extraction pipes 53 extend into the collection tank 45 one by one, the extraction of the dirt in the collection tank 45 can be realized.

[0061] Embodiment Three

[0062] As Figures 1 - 15 shown, on the basis of the above - mentioned embodiment, the following content is further given in this embodiment:

[0063] In this embodiment, the material replacement assembly 71 includes a material replacement cylinder 711, a sealing cover 712, a material guiding pipe 713, an input pipe one 714, an output pipe two 715, an input pipe two 716, a first electric valve 717, an output pipe one 718, a liquid extraction pipe 719, a second electric valve 7110, and a circulation pump 7111. The material guiding pipe 713 is installed through the support frame 11, and the liquid extraction pipe 719 is installed through the support frame 11. The bottom ends of the material guiding pipe 713 and the liquid extraction pipe 719 extend into the load chamber 9. The circulation pump 7111 is fixedly installed at the top of the support frame 11. The output end of the circulation pump 7111 is butt - connected with the output pipe one 718. The end of the output pipe one 718 is butt - connected with the output pipe two 715. One end of the output pipe two 715 is located above the collection mesh frame 72 and the other end is communicated with the material replacement cylinder 711. Second electric valves 7110 are assembled at both ends of the output pipe two 715. The input end of the circulation pump 7111 is butt - connected with the input pipe one 714, and the input pipe one 714 is communicated with the material replacement cylinder 711. An input pipe two 716 is butt - connected to the input pipe one 714, and the end of the input pipe two 716 is installed and communicated with the liquid extraction pipe 719. First electric valves 717 are assembled on both the input pipe two 716 and the input pipe one 714.

[0064] The material replacement assembly 71 switches the operation state according to the actual operation requirements;

[0065] First, start the circulation pump 7111. The circulation pump 7111 performs negative pressure suction. At this time, the first electric valve 717 on the input pipe two 716 is in the closed state; the second electric valve 7110 at the upper end of the output pipe two 715 is in the closed state. Then, the packing in the sewage will be connected to the sewage and pumped out, and discharged downward through the bottom end of the output pipe two 715. The packing will be collected by the collection mesh frame 72, and the sewage will pass through the collection mesh frame 72 and be automatically introduced into the reaction chamber 43 to achieve the extraction of the loaded packing.

[0066] When replacing, open the sealing cover 712, inject new loaded packing into the charging cylinder 711, and then close the charging cylinder 711 again. At this time, the first electric valve 717 on the input pipe one 714 is in the closed state, and the second electric valve 7110 at the lower end of the output pipe two 715 is in the closed state. Then, the sewage can be extracted through the liquid suction pipe 719 and injected into the charging cylinder 711. Under the action of water pressure, the new packing is pressed into the loading chamber 9 to complete the injection of the new packing.

[0067] In this embodiment, the bearing assembly 81 includes a download plate 811, a spring 812, a support piece 813, a guide member 814, and a pull rod 815. The bottom of the filter assembly 83 is jointly assembled with the download plate 811. The download plate 811 is evenly distributed with guide openings 8111, and the guide openings 8111 correspond to the filter assembly 83. The guide member 814 is clamped in the guide opening 8111. The pull rod 815 is installed through the guide member 814. The bottom of the pull rod 815 is fixedly installed with the support piece 813. A spring 812 is sleeved on the pull rod 815 between the guide member 814 and the support piece 813.

[0068] The guiding assembly 82 includes an upload plate 821, an outer sleeve rod 822, an inner sleeve rod 823, a connecting plate 824, and a sludge scraping plate 825. The top of the filter assembly 83 is butt - connected with the upload plate 821. The top of the pull rod 815 is fixedly connected to the bottom of the upload plate 821. One side of the upload plate 821 is fixedly installed with the outer sleeve rod 822. The inner sleeve rod 823 is sleeved in the outer sleeve rod 822. The bottom of the inner sleeve rod 823 is fixedly installed with the connecting plate 824. A plurality of sludge scraping plates 825 are fixedly installed on the connecting plate 824, and the sludge scraping plates 825 are in contact with the bottom surface of the reaction chamber 43.

[0069] The download plate 811 and the upload plate 821 cooperate with each other to complete the loading operation of the filter assembly 83.

[0070] During the period when the filtration component 83 is separated, it is necessary to first perform lifting and lowering. When rising, the download plate 811 and the upload plate 821 rise synchronously. Since the area of the download plate 811 is larger than that of the upload plate 821, the positioning joint 86 on the download plate 811 will rise synchronously until the positioning joint 86 is docked with the positioning plate 87, and the positioning plate 87 is used to limit the download plate 811. However, the upload plate 821 continues to rise, and the pull rod 815 will rise and squeeze the spring 812 through the support piece 813, causing the spring 812 to enter the compressed state and promoting the up and down separation between the filtration components 83. When the filtration components 83 are misaligned, the guide member 814 will assist in guiding within the guide port 8111, so that the lower half of the filtration component 83 is completely exposed, waiting for the flushing operation;

[0071] During lifting and lowering, the outer sleeve rod 822 and the inner sleeve rod 823 are telescopically sleeved to avoid interference;

[0072] During misalignment, the upload plate 821 will synchronously drive the outer sleeve rod 822 and the inner sleeve rod 823 to move, while the connecting plate 824 and the mud scraping plate 825 move synchronously. The mud scraping plate 825 is used to scrape the dirt on the bottom surface of the reaction chamber 43, so that the dirt is scraped into the collection tank 45 and waits to be pumped out.

[0073] In this embodiment, the filtration component 83 includes a lower outer shell 831, a first ceramic filter membrane 832, a lower docking member 833, an upper outer shell 834, a second ceramic filter membrane 835, a second water inlet 23, and an upper docking member 837. The lower outer shell 831 is butt - mounted on the top of the download plate 811, and the second water inlet 23 passing through the download plate 811 is butt - mounted at the bottom of the lower outer shell 831. The lower docking member 833 is fixedly mounted on the top of the lower outer shell 831, and the upper docking member 837 is docked and installed within the lower docking member 833. The lower outer shell 831 is docked and installed with the upper outer shell 834 through the lower docking member 833 and the upper docking member 837. The second ceramic filter membrane 835 is installed within the upper outer shell 834, and the first ceramic filter membrane 832 is docked and installed inside the lower outer shell 831. The first ceramic filter membrane 832 and the second ceramic filter membrane 835 are interconnected and communicated with each other;

[0074] The liquid guiding assembly 84 includes a fresh water branch pipe 841, a fresh water main pipe 842, a liquid guiding square pipe 843, a sewage outlet 844, and a one-way water injection port 845. The top of the upper housing 834 is butt - mounted with a fresh water main pipe 842 that penetrates the upper carrier plate 821, and the fresh water main pipe 842 is interconnected with the second ceramic filter membrane 835. The top of the fresh water main pipe 842 is jointly butt - mounted with a liquid guiding square pipe 843. The top of the liquid guiding square pipe 843 is butt - mounted with a one - way water injection port 845. The end face of the liquid guiding square pipe 843 is butt - mounted with a sewage outlet 844. One side of the upper housing 834 is butt - mounted with a fresh water branch pipe 841, and the fresh water branch pipe 841 penetrates the upper carrier plate 821. The top of the fresh water branch pipe 841 is jointly butt - mounted with the fresh water main pipe 842.

[0075] The second ceramic filter membrane 835 and the first ceramic filter membrane 832 are sleeved through their respective housings. Sewage enters the second ceramic filter membrane 835 and the first ceramic filter membrane 832 through the second water inlet 23 for filtration and purification. After passing through the second ceramic filter membrane 835 and the first ceramic filter membrane 832, the sewage undergoes dialysis. The purified water enters the gap between the membrane and the housing and is discharged through the fresh water branch pipe 841 and the fresh water main pipe 842. And the fresh water main pipe 842 is installed and connected to an external water pump.

[0076] The sewage will be cyclically discharged through the sewage outlet 844. The sewage outlet 844 is externally connected to a water pump through a pipeline. The water pump then re - imports the extracted sewage into the reaction chamber 43 to achieve cyclic operation.

[0077] When the second ceramic filter membrane 835 and the first ceramic filter membrane 832 are separated, the lower docking part 833 and the upper docking part 837 are separated. When performing backwashing, the first flushing joint 104 and the second flushing joint 105 are respectively docked with the lower housing 831 and the upper housing 834 for backwashing operations.

[0078] The one - way water injection port 845 is a water injection port, and a one - way water inlet valve is provided on the water injection port. When filtering sewage, the one - way water injection port 845 on the liquid guiding square pipe 843 can only allow one - way water inlet and cannot drain water.

[0079] In this embodiment, the dirt scraping assembly 85 includes a connecting rod 851, an upper connecting frame 852, a lower connecting frame 853, an external dirt scraping plate 854, and an internal dirt scraping plate 855. Two groups of connecting rods 851 are fixedly installed at the bottom of the download plate 811, and the connecting rods 851 extend into the load chamber 9. An upper connecting frame 852 is fixedly installed on the connecting rod 851 outside the load chamber 9, and an external dirt scraping plate 854 is fixedly installed at the end of the upper connecting frame 852. The external dirt scraping plate 854 is located around the outside of the load chamber 9. A lower connecting frame 853 is fixedly installed on the connecting rod 851 inside the load chamber 9, and an internal dirt scraping plate 855 is butt-joint installed at the end of the lower connecting frame 853. The internal dirt scraping plate 855 is located around the inside of the load chamber 9.

[0080] The connecting rod 851 extends into the load chamber 9 and performs telescopic movement with respect to the load chamber 9. When the connecting rod 851 moves up and down in the load chamber 9, it will drive the upper connecting frame 852 and the lower connecting frame 853 to move synchronously. The upper connecting frame 852 moves outside the load chamber 9, and the lower connecting frame 853 moves inside the load chamber 9, respectively driving the external dirt scraping plate 854 and the internal dirt scraping plate 855 to scrape on the inner and outer walls of the load chamber 9 to remove the attached substances.

[0081] In this embodiment, the backwashing assembly 10 includes a main water guide pipe 101, a water suction pipe 106, and a water pump 107. A water pump 107 is installed at the bottom of the storage chamber 44. The output end of the water pump 107 is butt-joint installed with a water suction pipe 106. One ends of the water guide branch pipes 102 are jointly butt-joint installed with a connected main water guide pipe 101, and the top of the water suction pipe 106 is installed and connected to the main water guide pipe 101.

[0082] During backwashing, the water pump 107 is started. The water pump 107 lifts the purified water to the water suction pipe 106, and then conveys the clear water to the main water guide pipe 101 through the water suction pipe 106. The water is guided to each sub-pipe through the main water guide pipe 101 to realize the backwashing operation of the filtering assembly 83.

[0083] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0084] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; 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 various embodiments of the present invention.

Claims

1. Ceramic membrane bioreactor, characterized by: It comprises a base, a reaction tank body is fixedly installed on the top of the base, a filtering mechanism is fixedly installed on the base on one side of the reaction tank body, an aeration chamber, a sedimentation chamber, a reaction chamber, and a storage chamber are respectively arranged inside the reaction tank body, and a first water guide hole is arranged between the aeration chamber and the sedimentation chamber, and a second water guide hole is arranged between the sedimentation chamber and the reaction chamber, an aeration component is installed on the base, and the working end of the aeration component extends to the aeration chamber and the reaction chamber respectively, a plurality of collecting tanks are arranged at the bottom of the storage chamber, a mud pumping component is installed on the top of the base, and the working end of the mud pumping component extends into the collecting tank, a supporting frame is fixedly installed on the top of the reaction tank body, an adjusting mechanism and a material changing mechanism are respectively installed on the supporting frame, a reaction mechanism is hoisted at the bottom of the adjusting mechanism, a load room is fixedly installed in the reaction chamber below the reaction mechanism, the bottom end of the material changing mechanism extends into the load room, a recoil component is installed on the top of the reaction chamber, and the input end of the recoil component is arranged in the storage chamber; The adjusting mechanism comprises an electric telescopic cylinder, an installation cavity, an n-type hanger, a guide seat, a screw rod, and a motor; the material changing mechanism comprises a material changing assembly and a collecting net frame; the reaction mechanism comprises a bearing assembly, a guide assembly, a filtering assembly, a liquid guiding assembly, a dirt scraping assembly, a positioning joint, and a positioning plate. The electric telescopic cylinder is fixedly installed on the top of the support frame, and the output end of the electric telescopic cylinder is docked with the installation cavity, and the inside of the installation cavity is docked with the screw rod, and the side of the installation cavity is fixedly installed with a motor, and the output end of the motor is connected to the screw rod, and the guide seat is mounted on the screw rod, and the bottom of the guide seat is fixedly installed with the n-type hanger, the n-type A guide assembly is fixedly installed at the bottom of the hanger, a bearing assembly is docked at the bottom of the guide assembly, a number of filter assemblies are docked between the bearing assembly and the guide assembly, a liquid guide assembly is docked at the top of the guide assembly, a dirt scraping assembly is fixedly installed at the bottom of the bearing assembly, and the dirt scraping assembly and the load room are assembled with each other, two sets of positioning plates are fixedly installed on the inner wall of the reaction chamber, a positioning joint is fixedly installed on the top of the guide assembly, and the positioning joint and the positioning plate correspond to each other, a collecting net frame is clamped on the top of the support frame, a material changing assembly is assembled on the top of the support frame, and the operating end of the material changing assembly extends into the load room; The adjustment mechanism also includes guide rods and sliding components. Two sets of guide rods are installed on the support frame, and the bottom ends of the guide rods are installed and connected with the installation cavity. The interior of the installation cavity is equipped with sliding components, and the installation cavity is slidably connected with the guide seat through the sliding components. The material changing assembly comprises a material changing barrel, a sealing cover, a material guiding pipe, an input pipe 1, an output pipe 2, an input pipe 2, a first electric valve, an output pipe 1, a liquid extraction pipe, a second electric valve, and a circulation pump. The material guiding pipe is installed through the support frame, and the liquid extraction pipe is installed through the support frame. The bottom ends of the material guiding pipe and the liquid extraction pipe extend into the load room. A circulation pump is fixedly installed on the top of the support frame. The output end of the circulation pump is butt-jointed with the output pipe 1, and the end of the output pipe 1 is butt-jointed with the output pipe 2. One end of the output pipe 2 is located above the collecting net frame, and the other end is connected with the material changing barrel. Both ends of the output pipe 2 are equipped with the second electric valve. The input end of the circulation pump is butt-jointed with the input pipe 1, and the input pipe 1 is connected with the material changing barrel. The input pipe 2 is butt-jointed with the input pipe 1, and the end of the input pipe 2 is connected with the liquid extraction pipe. The first electric valve is installed on both the input pipe 2 and the input pipe 1. The bearing assembly includes a download plate, a spring, a support sheet, a guide member, and a pull rod. The bottom of the filter assembly is equipped with a download plate. The download plate is evenly distributed with guide openings, and the guide openings correspond to the filter assembly. The guide openings are clamped with guide members, and a pull rod is installed through the guide members. A support sheet is fixedly installed at the bottom of the pull rod, and a spring is sleeved on the pull rod between the guide member and the support sheet. The guide assembly includes an upper loading plate, an outer sleeve rod, an inner sleeve rod, a connecting plate, and a scraper plate. The upper loading plate is butt-jointed with the top of the filter assembly, the top of the pull rod is fixedly connected to the bottom of the upper loading plate, an outer sleeve rod is fixedly installed on one side of the upper loading plate, an inner sleeve rod is sleeved inside the outer sleeve rod, and a connecting plate is fixedly installed at the bottom of the inner sleeve rod, and a plurality of scraper plates are fixedly installed on the connecting plate, and the scraper plates are in contact with the bottom surface of the reaction chamber; The filter assembly includes a lower shell, a first ceramic filter membrane, a lower docking piece, an upper shell, a second ceramic filter membrane, a second water inlet, and an upper docking piece. The lower shell is docked with the top of the download plate, and the second water inlet that runs through the download plate is docked with the bottom of the lower shell. The lower shell is fixedly installed on the top of the lower shell, and the upper docking piece is docked with the inside of the lower docking piece. The lower shell is docked with the upper shell through the lower docking piece and the upper docking piece. The second ceramic filter membrane is installed in the upper shell, and the first ceramic filter membrane is docked with the inside of the lower shell. The first ceramic filter membrane and the second ceramic filter membrane are docked and connected with each other.

2. The ceramic membrane bioreactor according to claim 1, characterized in that: The filtering mechanism comprises a filter tank body, a lifting pump, a first water inlet, a lifting pipe, a water guide plate, and a water guide port. The filter tank body is fixedly installed on the top of the base, a cover plate and a filter screen plate are fixedly installed on the top of the filter tank body, the first water inlet extending into the filter tank body is butt-jointedly installed on the top of the cover plate, a water guide plate is butt-jointedly installed on the bottom of the first water inlet, and water guide ports are evenly distributed on the bottom of the water guide plate, a filter screen plate is fixedly installed inside the filter tank body, a lifting pump is arranged at the bottom of the filter tank body, the output end of the lifting pump is butt-jointedly installed with the lifting pipe, and the lifting pipe is connected to the aeration chamber.

3. The ceramic membrane bioreactor according to claim 2, characterized in that: The aeration assembly includes an aerator, a main air pipe, a first branch pipe, an air guide plate, and aeration holes. The aerator is fixedly installed on the top of the base, the main air pipe is butt-jointed with the output end of the aerator, and the main air pipe extends to the top of the reaction tank body, two groups of first branch pipes are butt-jointed with the end of the main air pipe, and the two groups of first branch pipes extend to the aeration chamber and the reaction chamber respectively, the bottom end of the first branch pipe is butt-jointed with the air guide plate, and aeration holes are evenly distributed on the top of the air guide plate, and the aeration chamber and the reaction chamber are aerated through the aeration holes on the air guide plate.

4. The ceramic membrane bioreactor according to claim 3, characterized in that: The mud pumping assembly includes a mud pump, a mud pumping main pipe, and a mud pumping auxiliary pipe. The mud pump is fixedly installed on the top of the base, the mud pumping main pipe is butt-connected to the output end of the mud pump, and a plurality of mud pumping auxiliary pipes are butt-connected to the mud pumping main pipe. The mud pumping auxiliary pipes extend into the collecting tank, and the mud pumping auxiliary pipes extract the sludge in the collecting tank through the suction holes at the bottom.

5. The ceramic membrane bioreactor according to claim 4, characterized in that: The liquid guiding assembly comprises a clean water branch pipe, a clean water main pipe, a liquid guiding square pipe, a sewage outlet and a one-way water injection port; the top of the upper shell is butt-jointed with a clean water main pipe penetrating the upper loading plate, and the clean water main pipe is connected to the second ceramic filter membrane; the top of the clean water main pipe is butt-jointed with a liquid guiding square pipe, the top of the liquid guiding square pipe is butt-jointed with a one-way water injection port, and the end face of the liquid guiding square pipe is butt-jointed with a sewage outlet; a clean water branch pipe is butt-jointed with one side of the upper shell, and the clean water branch pipe penetrating the upper loading plate, and the top of the clean water branch pipe is butt-jointed with the clean water main pipe.

6. The ceramic membrane bioreactor according to claim 5, characterized in that: The scraping assembly includes a connecting rod, an upper connecting frame, a lower connecting frame, an external scraping plate, and an internal scraping plate. Two groups of connecting rods are fixedly installed on the bottom of the lower plate, and the connecting rods extend into the load room. The upper connecting frame is fixedly installed on the connecting rod outside the load room, and the end of the upper connecting frame is fixedly installed with the external scraping plate, and the external scraping plate is located around the outside of the load room. The lower connecting frame is fixedly installed on the connecting rod inside the load room, and the end of the lower connecting frame is butt-jointed with the internal scraping plate, and the internal scraping plate is located around the inside of the load room.

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