Assembled modular sewage treatment device

Abstract

The utility model relates to a split mounting type modular sewage treatment device which comprises a split mounting type enamel plate tank body, a sewage biochemical treatment system arranged inside the split mounting type enamel plate tank body, and a modular filter cloth filtering and backwashing system and a sterilization and disinfection system which are arranged outside the split mounting type enamel plate tank body, the sewage biochemical treatment system, the modular filter cloth filtering and backwashing system and the sterilization and disinfection system are connected in sequence; the system further comprises a total electrical control system, the total electrical control system comprises an automatic operation system, a fault alarm system and an internet-of-things remote monitoring system, and the sewage biochemical treatment system comprises a facultative biochemical treatment area, an aerobic biochemical treatment area, a dosing mixing area and a sludge precipitation separation area. The device is high in integration level, modularized, relatively simple in equipment, high in automation degree, low in investment cost, low in operation and maintenance cost, easy to transport and install and good in sewage treatment effect.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an assembled modular sewage treatment device. Background Art

[0002] Sewage treatment is an important part of environmental protection. In my country, water treatment facilities or projects are basically civil engineering or steel structure welded tanks. The construction process of steel-concrete tanks is complex, the cycle is long, the structural design is cumbersome, and the cost is high; the steel structure welded tank is welded on-site, the construction quality is difficult to guarantee, and the corrosion resistance is poor, the service life is short, and the tank capacity is small; the above two types have certain limitations, which not only lead to high construction investment costs, long construction cycles, large land occupation, but also more troublesome operation; especially for some emergency sewage treatment projects and projects with limited civil engineering land, it is easy to cause waste of resources.

[0003] The existing sewage biochemical treatment systems use treatment processes and equipment that vary greatly, and it is difficult to ensure that water quality meets standards, especially in remote areas where investment, operation and maintenance are more difficult. Utility Model Content

[0004] The utility model aims to solve the deficiencies of the prior art and provides an assembled modular sewage treatment device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] An assembled modular sewage treatment device comprises an assembled enamel plate tank body, a sewage biochemical treatment system arranged inside the assembled enamel plate tank body, and a modular filter cloth filtering and backwashing system and a sterilization and disinfection system arranged outside the assembled enamel plate tank body, wherein the sewage biochemical treatment system, the modular filter cloth filtering and backwashing system, and the sterilization and disinfection system are connected in sequence;

[0007] The sewage biochemical treatment system includes an anaerobic biochemical treatment area, an aerobic biochemical treatment area, a dosing mixing area and a sludge sedimentation and separation area.

[0008] The assembled enamel plate tank body is installed on a reinforced concrete base. The assembled enamel plate tank body includes several layers of enamel plate splicing bodies connected by self-locking bolts, and each layer of enamel plate splicing bodies is spliced ​​by several enameled steel plates. The outer wall of the assembled enamel plate tank body is provided with a number of stirrups. The assembled enamel plate tank body is provided with a number of partition boards, and the internal space is divided into anoxic biochemical treatment area, aerobic biochemical treatment area, dosing mixing area and sludge sedimentation and separation area by the partition boards. The assembled enamel plate tank body is provided with a fence platform, and the outside of the assembled enamel plate tank body is provided with upper and lower guardrail inclined ladders connected to the fence platform, and the assembled enamel plate tank body is provided with upper and lower cage-shaped vertical ladders in the anoxic biochemical treatment area and the aerobic biochemical treatment area.

[0009] A plug flow stirring and mixing device is provided in the anoxic biochemical treatment area.

[0010] The aerobic biochemical treatment area is equipped with a self-aerating biological rotor system and a post-supplementary aeration system;

[0011] The self-aerated biological wheel system includes a biological wheel maintenance gantry, two annular diaphragm side clamps are arranged below the biological wheel maintenance gantry, a number of diaphragm through-rods are evenly installed circumferentially between the two annular diaphragm side clamps, each diaphragm through-rod is penetrated and installed with a number of aeration diaphragms, a through-rod limiter is installed on the diaphragm through-rod on the outer side of the annular diaphragm side clamp, a number of diaphragm side clamp fixing rods are fixed circumferentially on the outer side of each annular diaphragm side clamp, a stirring paddle is installed between the two corresponding diaphragm side clamp fixing rods, and a number of diaphragm side clamps on the same side are fixed with a stirring paddle. A flange is fixed in the middle of the clamp plate fixing rod, a central transmission shaft is installed between the two flanges, bearing seat fixing plates are provided below both ends of the central transmission shaft, bearing seats are installed on the bearing seat fixing plates, the central transmission shaft is installed between the two bearing seats, a large sprocket is installed on the outer side of several diaphragm side clamp plate fixing rods on one side, the large sprocket is connected to a small sprocket through a chain, the small sprocket is connected to a drive motor through a reducer, the drive motor is installed on the motor fixing seat, and a number of fiber bundle bionic fillers are installed between several diaphragm side clamp plate fixing rods on the same side;

[0012] The post-supplementary aeration system includes a blower arranged outside the assembled enamel plate tank body, the blower is connected to a microporous aerator through a blower aeration pipe, the microporous aerator is connected to a plurality of aeration branch pipes, and the microporous aerator and the aeration branch pipes are located inside the assembled enamel plate tank body.

[0013] The dosing and mixing area is provided with a dosing and distributing pipe and a dosing and mixing agitator, and dosing holes are evenly distributed on the dosing and distributing pipe.

[0014] A water distribution pipe is installed in the middle of the sludge sedimentation and separation zone through a plurality of water distribution pipe brackets. The bottom of the sludge sedimentation and separation zone is a sludge sedimentation and accumulation zone. A sludge suction pipe is connected to the bottom of the sludge sedimentation and accumulation zone. The sludge suction pipe is connected to a sludge discharge pump. The outlet of the sludge discharge pump is connected to a sludge discharge pipe and a sludge return pipe in parallel. The sludge return pipe is connected to the anoxic biochemical treatment zone. A water outlet weir assembly is installed on the upper part of the sludge sedimentation and separation zone through a water outlet weir bracket. The end of the water outlet weir assembly is connected to a modular filter cloth filtration and backwashing system through a pipeline.

[0015] The modular filter cloth filtration and backwashing system includes a box body installed on a reinforced concrete base. The box body is divided into an equipment room and a purification room. A box body water inlet is provided at the lower end of one side wall of the purification room and a total water outlet is provided at the upper end. A water inlet anti-collision plate is provided at the water inlet of the box body in the purification room, and two groups of filter cloth filter components are provided at the rear section of the water inlet anti-collision plate. Side water outlets are provided on both sides of each group of filter cloth filter components. The side water outlets are connected to side branch pipelines. The side branch pipelines are connected to a purified water outlet weir. The purified water outlet weir is set corresponding to the total water outlet. The two groups of filter cloth filter components are connected to the purification room. A central tube shaft assembly is rotatably installed at the center of the filter assembly, and the central tube shaft assembly is connected to a rotating motor. The central tube shaft assembly is provided with a backwash suction assembly on the front side of the two groups of filter cloth filter assemblies, and the backwash suction assembly is connected with a mud discharge pipeline and a backwash pipeline. The mud discharge pipeline is located at the bottom of the purification room, and a mud discharge electric valve is provided on the mud discharge pipeline, and a backwash electric valve is provided on the backwash pipeline. The mud discharge electric valve and the backwash electric valve are both connected to the backwash pump, and the mud discharge pipeline is connected with backwash and mud discharge outlets, and the backwash and mud discharge outlets are arranged on the side wall of the purification room.

[0016] A liquid level sensor is installed in the purification room, and a purification control component and a lighting lamp are installed in the equipment room. The rotating motor, backwash pipeline, backwash electric valve and backwash pump are all arranged in the equipment room. The rotating motor, backwash electric valve, mud discharge electric valve, backwash pump and liquid level sensor are all connected to the purification control component, and a double door is provided on the top of the equipment room.

[0017] The sterilization and disinfection system includes a cavity, which is installed on a reinforced concrete base through a cavity support. A variable-diameter water inlet pipe is provided at one end of the cavity and a motor protection cover is provided at the other end. A cavity water inlet is provided at the end of the variable-diameter water inlet pipe, a cavity water outlet is provided on the side of the top of the cavity close to the motor protection cover, and a vent is provided at the bottom of the variable-diameter water inlet pipe. Several ultraviolet lamps are installed circumferentially in the cavity, a quartz sleeve is provided outside the ultraviolet lamp, a lead screw is installed in the middle position of the cavity, the lead screw is connected to a lead screw motor through a coupling, the lead screw motor is located in the motor protection cover, a lead screw nut is threadedly installed on the lead screw, several cleaning plates are installed circumferentially on the outer wall of the lead screw nut, a cleaning ring assembly is installed on the cleaning plate, the cleaning ring assembly is sleeved outside the quartz sleeve, an ultraviolet intensity detection unit and a temperature control unit are installed on the cavity, and a Hall switch assembly is installed in the motor protection cover.

[0018] It also includes a general electrical control system, which includes an automatic operation system, a fault alarm system and an Internet of Things remote monitoring system.

[0019] The beneficial effects of the utility model are: the utility model has high integration and modularization, relatively simple equipment, high degree of automation, low investment cost, low operation and maintenance cost, easy transportation and installation, and good sewage treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the utility model;

[0021] Figure 2 It is a top view of the utility model;

[0022] Figure 3 It is a schematic diagram of the structure of the assembled enamel plate tank;

[0023] Figure 4 It is a schematic diagram of the assembly between the upper and lower enameled steel plates of the assembled enameled plate tank;

[0024] Figure 5 It is a schematic diagram of the connection between the bottom of the assembled enamel plate tank and the reinforced concrete base;

[0025] Figure 6 It is a structural schematic diagram of a self-aerated biological wheel system;

[0026] Figure 7 This is a schematic diagram of the installation of aeration membrane;

[0027] Figure 8 It is a three-dimensional diagram of the modular filter cloth filtration and backwashing system;

[0028] Fig. 9 A schematic diagram of the internal structure of the modular filter cloth filtration and backwashing system in one direction;

[0029] Fig.10 This is a schematic diagram of the internal structure of the modular filter cloth filtration and backwashing system from another direction;

[0030] Fig.11 It is a structural diagram of the sterilization and disinfection system;

[0031] In the figure: 1-Assembled enamel plate tank; 2-Sewage biochemical treatment system; 3-Modular filter cloth filtration and backwashing system; 4-Sterilization and disinfection system; 5-Reinforced concrete base;

[0032] 11- enameled steel plate; 12- self-locking bolts; 13- stirrups; 14- partition board; 15- fence platform; 16- upper and lower guardrail inclined ladder; 17- upper and lower cage-shaped vertical ladder; 18- expansion screws; 19- waterproof seal; 110- secondary plain concrete pouring protective layer;

[0033] 21- anoxic biochemical treatment area; 22- aerobic biochemical treatment area; 23- dosing and mixing area; 24- sludge sedimentation and separation area;

[0034] 211- plug flow stirring and mixing device;

[0035] 221-self-aerating biological rotor system; 222-post-supplementary aeration system;

[0036] 2211-annular membrane side clamping plate; 2212-membrane through-rod; 2213-aeration membrane; 2214-through-rod limiter; 2215-membrane side clamping plate fixing rod; 2216-stirring paddle; 2217-flange; 2218-central transmission shaft; 2219-bearing seat fixing plate; 22110-bearing seat; 22111-large sprocket; 22112-chain; 22113-small sprocket; 22114-reducer; 22115-drive motor; 22116-motor fixing seat; 22117-fiber bundle bionic filler; 22118-bio-wheel maintenance gantry;

[0037] 2221-blower; 2222-air aeration pipe; 2223-aeration branch pipe;

[0038] 231-dosing and distributing pipe; 232-dosing and mixing stirrer;

[0039] 241-water distribution pipe bracket; 242-water distribution pipe; 243-mud suction pipe; 244-mud discharge pump; 245-mud discharge pipe; 246-sludge return pipe; 247-water outlet weir bracket; 248-water outlet weir assembly;

[0040] 31-box; 32-equipment room; 33-purification room; 34-box water inlet; 35-total water outlet; 36-water inlet anti-impact plate; 37-filter cloth filter assembly; 38-side water outlet; 39-side branch pipeline; 310-purification water outlet weir; 311-central pipe shaft assembly; 312-rotating motor; 313-backwash suction assembly; 314-mud discharge pipeline; 315-backwash pipeline; 316-backwash pump; 317-backwash and mud discharge outlet; 318-liquid level sensor; 319-purification control assembly; 320-lighting lamp; 321-double door;

[0041] 41- cavity; 42- cavity support; 43- variable diameter water inlet pipe; 44- motor protection cover; 45- cavity water inlet; 46- cavity water outlet; 47- venting port; 48- UV lamp; 49- quartz sleeve; 410- lead screw; 411- lead screw motor; 412- lead screw nut; 413- cleaning plate; 414- cleaning ring assembly; 415- UV intensity detection unit; 416- temperature control unit; 417- Hall switch assembly; 418- sampling port;

[0042] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0043] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0044] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0046] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0047] An assembled modular sewage treatment device, such as Figure 1 As shown, it includes an assembled enamel plate tank body 1, a sewage biochemical treatment system 2 arranged inside the assembled enamel plate tank body 1, and a modular filter cloth filtration and backwashing system 3 and a sterilization and disinfection system 4 arranged outside the assembled enamel plate tank body 1. The sewage biochemical treatment system 2, the modular filter cloth filtration and backwashing system 3, and the sterilization and disinfection system 4 are connected in sequence; it also includes a general electrical control system, and the general electrical control system includes an automatic operation system, a fault alarm system and an Internet of Things remote monitoring system.

[0048] Assembled enamel plate tank 1 Figure 2 , Figure 3 , Figure 4As shown, it is installed on a reinforced concrete base 5, the assembled enamel plate tank body 1 includes several layers of enamel plate splicing bodies connected by self-locking bolts 12, each layer of enamel plate splicing bodies is spliced ​​by several enameled steel plates 11, the outer wall of the assembled enamel plate tank body 1 is provided with several stirrups 13, the assembled enamel plate tank body 1 is provided with several partition plates 14, and the internal space is divided into an anoxic biochemical treatment area 21, an aerobic biochemical treatment area 22, a dosing mixing area 23 and a sludge sedimentation and separation area 24 by the partition plates 14, the assembled enamel plate tank body 1 is provided with a fence platform 15, the assembled enamel plate tank body 1 is provided with an upper and lower guardrail inclined ladder 16 connected to the fence platform 15 on the outside, and the assembled enamel plate tank body 1 is provided with an upper and lower cage-shaped vertical ladder 17 in the anoxic biochemical treatment area 21 and the aerobic biochemical treatment area 22.

[0049] like Figure 2 , Figure 3 As shown, the sewage biochemical treatment system 2 includes an anaerobic biochemical treatment zone 21 , an aerobic biochemical treatment zone 22 , a drug adding and mixing zone 23 and a sludge sedimentation and separation zone 24 .

[0050] like Figure 2 , Figure 3 As shown, a plug flow stirring and mixing device 211 is provided in the anoxic biochemical treatment zone 21 .

[0051] like Figure 2 , Figure 3 As shown, the aerobic biochemical treatment area 22 is provided with a self-aerating biological rotor system 221 and a post-supplementary aeration system 222;

[0052] Self-aerated biological wheel system 221 Figure 6 , Figure 7As shown, it includes a bio-wheel maintenance gantry 22118, two annular diaphragm side clamps 2211 are arranged below the bio-wheel maintenance gantry 22118, a plurality of diaphragm through-rods 2212 are evenly installed circumferentially between the two annular diaphragm side clamps 2211, and a plurality of aeration diaphragms 2213 are installed on each diaphragm through-rod 2212, and a through-rod limiting piece 2214 is installed on the diaphragm through-rod 2212 on the outer side of the annular diaphragm side clamps 2211, and a plurality of diaphragm side clamp fixing rods 2215 are fixed circumferentially on the outer side of each annular diaphragm side clamp 2211, a stirring paddle 2216 is installed between the two corresponding diaphragm side clamp fixing rods 2215, and a flange 2217 is fixed in the middle of the plurality of diaphragm side clamp fixing rods 2215 on the same side, and the two A central transmission shaft 2218 is installed between the flanges 2217, bearing seat fixing plates 2219 are provided below both ends of the central transmission shaft 2218, bearing seats 22110 are installed on the bearing seat fixing plates 2219, and the central transmission shaft 2218 is installed between the two bearing seats 22110, and a large sprocket 22111 is installed on the outer side of a plurality of diaphragm side clamping plate fixing rods 2215 on one side, and the large sprocket 22111 is connected to a small sprocket 22113 through a chain 22112, and the small sprocket 22113 is connected to a drive motor 22115 through a reducer 22114, and the drive motor 22115 is installed on a motor fixing seat 22116, and a plurality of fiber bundle bionic fillers 22117 are installed between a plurality of diaphragm side clamping plate fixing rods 2215 on the same side;

[0053] like Figure 2 , Figure 3 As shown, the post-supplementary aeration system 222 includes a blower 2221 arranged outside the assembled enamel plate tank body 1, the blower 2221 is connected to a microporous aerator through a blower aeration pipe 2222, the microporous aerator is connected to a plurality of aeration branch pipes 2223, and the microporous aerator and the aeration branch pipes 2223 are located inside the assembled enamel plate tank body 1.

[0054] like Figure 2 , Figure 3 As shown, the dosing and mixing area 23 is provided with a dosing and distributing pipe 231 and a dosing and mixing agitator 232 , and dosing holes are evenly distributed on the dosing and distributing pipe 231 .

[0055] like Figure 2 , Figure 3As shown, a water distribution pipe 242 is installed in the middle of the sludge sedimentation and separation zone 24 through a plurality of water distribution pipe brackets 241, the bottom of the sludge sedimentation and separation zone 24 is a sludge sedimentation and aggregation zone, the bottom of the sludge sedimentation and aggregation zone is connected to a sludge suction pipe 243, the sludge suction pipe 243 is connected to a sludge discharge pump 244, the outlet of the sludge discharge pump 244 is connected in parallel with a sludge discharge pipe 245 and a sludge return pipe 246, the sludge return pipe 246 is connected to the anoxic biochemical treatment zone 21, and an outlet weir assembly 248 is installed on the upper part of the sludge sedimentation and separation zone 24 through an outlet weir bracket 247, and the end of the outlet weir assembly 248 is connected to the modular filter cloth filtration and backwashing system 3 through a pipeline.

[0056] Modular filter cloth filtration and backwashing system 3 Figure 8 , Fig. 9 , Fig.10 As shown, the box body 31 is installed on the reinforced concrete base 5, and the box body 31 is divided into an equipment room 32 and a purification room 33. A box water inlet 34 is provided at the lower end of one side wall of the purification room 33, and a total water outlet 35 is provided at the upper end. A water inlet anti-collision plate 36 is provided at the box water inlet 34 in the purification room 33, and two groups of filter cloth filter components 37 are provided at the rear section of the water inlet anti-collision plate 36. Side water outlets 38 are provided on both sides of each group of filter cloth filter components 37. The side water outlet 38 is connected to a side branch pipeline 39. The side branch pipeline 39 is connected to a purified water outlet weir 310. The purified water outlet weir 310 is arranged corresponding to the total water outlet 35. The centers of the two groups of filter cloth filter components 37 are both rotated. A central tubular shaft assembly 311 is installed, and the central tubular shaft assembly 311 is connected to a rotating motor 312. The central tubular shaft assembly 311 is provided with a backwash suction assembly 313 on the front side of the two groups of filter cloth filter assemblies 37. The backwash suction assembly 313 is connected to a mud discharge pipeline 314 and a backwash pipeline 315. The mud discharge pipeline 314 is located at the bottom of the purification room 33. A mud discharge electric valve is provided on the mud discharge pipeline 314, and a backwash electric valve is provided on the backwash pipeline 315. The mud discharge electric valve and the backwash electric valve are both connected to a backwash pump 316. The mud discharge pipeline 314 is connected to a backwash and mud discharge outlet 317, and the backwash and mud discharge outlet 317 is arranged on the side wall of the purification room 33.

[0057] A liquid level sensor 318 is provided in the purification room 33, a purification control component 319 and a lighting lamp 320 are provided in the equipment room 32, a rotating motor 312, a backwash pipeline 315, a backwash electric valve, and a backwash pump 316 are all arranged in the equipment room 32, and the rotating motor 312, the backwash electric valve, the mud discharge electric valve, the backwash pump 316, and the liquid level sensor 318 are all connected to the purification control component 319, and a double door 321 is provided on the top of the equipment room 32.

[0058] Sterilization system 4 Fig.11As shown, the cavity 41 includes a cavity 41, which is installed on a reinforced concrete base 5 through a cavity support 42. A variable diameter water inlet pipe 43 is provided at one end of the cavity 41 and a motor protection cover 44 is provided at the other end. A cavity water inlet 45 is provided at the end of the variable diameter water inlet pipe 43. A cavity water outlet 46 is provided on the top of the cavity 41 near the motor protection cover 44. A vent 47 is provided at the bottom of the variable diameter water inlet pipe 43. A plurality of ultraviolet lamps 48 are installed on the circumference of the cavity 41. A quartz sleeve 49 is provided outside the ultraviolet lamp 48. A The lead screw 410 is connected to a lead screw motor 411 through a coupling, the lead screw motor 411 is located in a motor protection cover 44, a lead screw nut 412 is threadedly mounted on the lead screw 410, a plurality of cleaning plates 413 are circumferentially mounted on the outer wall of the lead screw nut 412, a cleaning ring assembly 414 is mounted on the cleaning plate 413, the cleaning ring assembly 414 is sleeved outside the quartz sleeve 49, an ultraviolet intensity detection unit 415 and a temperature control unit 416 are mounted on the cavity 41, and a Hall switch assembly 417 is installed in the motor protection cover 44. Specific embodiment:

[0060] Combination Figures 1 to 11 As shown, the main structure of the utility model mainly includes five parts.

[0061] The first part is the combined carrier of each functional section, that is, the assembled enamel plate tank body 1; the second part is the sewage biochemical treatment system 2 arranged inside the assembled enamel plate tank body 1, including an anaerobic biochemical treatment area 21, an aerobic biochemical treatment area 22, a dosing mixing area 23 and a sludge sedimentation and separation area 24; the third part is a modular filter cloth filtration and backwashing system 3 arranged outside the assembled enamel plate tank body 1; the fourth part is a sterilization and disinfection system 4 arranged outside the assembled enamel plate tank body 1; the fifth part is the overall electrical control system and the supporting equipment necessary for the operation of each system.

[0062] The first part is the carrier of each biochemical function combination, that is, the assembled enamel plate tank body 1. The assembled enamel plate tank body 1 is installed on the reinforced concrete base 5, and the bottom is sealed by taking sealing and waterproof measures to prevent water leakage; the internal partition board 14 can be adopted in a variety of ways, such as steel-concrete structure, steel plate welding, modular steel plate assembly, etc. The interior of the assembled enamel plate tank body 1 is various functional sections, which are reasonably distributed through the partition board 14; the upper part of the assembled enamel plate tank body 1 is provided with a fence platform 15; the outer part of the assembled enamel plate tank body 1 is provided with an upper and lower guardrail inclined ladder 16; the inner part is provided with an upper and lower cage-shaped vertical ladder 17 according to the process requirements.

[0063] The main structure of the assembled enamel plate tank body 1 is enamel steel plate 11, self-locking bolts 12, stirrups 13, and sealing materials. The enamel steel plate 11 is made of special high-strength steel plate, and double-sided double-layer enamel is applied. The enamel surface is smooth and moist, and has the characteristics of porcelain. The protective layer formed by the enamel coating can not only prevent the corrosion of the tank body, but also has the characteristics of strong acid and alkali resistance and high temperature resistance. The sealing material is made of high-quality corrosion-resistant, acid-resistant and alkali-resistant sealant, which is applied to the surface of the two enamel steel plates 11 to ensure that the connection is sealed and leak-proof; the stirrups 13 are made of hot-dip galvanized material to ensure the radial fixation of the entire circle of enamel steel plates 11; the self-locking bolts 12 ensure the fixation between the enamel steel plates 11.

[0064] The installation of the assembled enamel plate tank body 1 adopts a special installation tool. The worker connects the enameled steel plate 11 into a circle on the ground through the self-locking bolts 12, and then lifts it to the height of one layer of plates with a special tool, and then installs the second circle. The operation is repeated until the assembled enamel plate tank body 1 is installed. From beginning to end, the workers only need to stand on the ground to operate, which is simple and safe.

[0065] The number of assembling layers of the assembled enamel plate tank body 1 is determined according to the process requirements, and the bottom and the top are both required to be fixed radially and circumferentially with special stirrups 13; the bottom special stirrups 13 also need to be fixed to the reinforced concrete base 5 by expansion screws 18; the middle of the assembled enamel plate tank bodies 1 of different heights also need to be fixed to the connection by special stirrups 13, and the radial circumference is fixed by one or more circles, so as to ensure that the interior of the assembled enamel plate tank body 1 can withstand the pressure after water storage.

[0066] The bottom of the assembled enamel plate tank body 1 is placed in a circle of civil engineering grooves, and after the grooves are waterproofed and sealed 19, a secondary plain mix casting protective layer 110 is used to achieve bottom waterproofing.

[0067] A fence platform 15 is provided on the upper part of the assembled enamel plate tank body 1, and the fence platform 15 ensures the safety of personnel as well as maintenance and operation space; the outer part of the assembled enamel plate tank body 1 is provided with upper and lower guardrail inclined ladders 16 to ensure that personnel can go up to the fence platform 15 from the bottom; the inner part is provided with upper and lower cage-shaped vertical ladders 17 according to process requirements, so as to inspect and maintain the internal equipment.

[0068] The second part is a sewage biochemical treatment system 2 arranged inside the assembled enamel plate tank 1, including an anaerobic biochemical treatment area 21, an aerobic biochemical treatment area 22, a dosing mixing area 23 and a sludge sedimentation and separation area 24.

[0069] The anoxic biochemical treatment area 21 performs reverse flow stirring of water flow through the flow stirring and mixing device 211 to achieve the stirring of sewage and prevent sludge precipitation in this area.

[0070] The aerobic biochemical treatment area 22 includes an aeration membrane assembly, a membrane side clamp fixing rod 2215, a stirring paddle 2216, a membrane side clamp fixing part, a transmission assembly, a fiber bundle bionic filler 22117, a biological wheel maintenance gantry 22118, etc.

[0071] The aeration membrane assembly includes: an aeration membrane 2213, a membrane penetration rod 2212, a penetration rod limiter 2214, an annular membrane side clamping plate 2211 and the like. A certain number of aeration membranes 2213 are installed on the membrane through-rod 2212, and then fixed on both sides to the annular membrane side clamping plate 2211, and limited by the through-rod limit plate 2214 to prevent self-rotation; multiple groups of aeration membrane assemblies are fixed on the membrane side clamping plate fixing rod 2215; a certain number of aeration membranes 2213 form cavities inside, and during the rotation process, the internal cavity of the water outlet part of the aeration membrane 2213 is filled with air through the air port of the aeration membrane 2213, and the internal cavity of the water inlet part of the aeration membrane 2213 is emptied of air through the air port of the aeration membrane 2213, thereby realizing underwater aeration; at the same time, biofilm can grow on the surface of the aeration membrane 2213 to increase sludge activity, and the fiber bundle bionic filler 22117 is fixed to the middle of the membrane side clamping plate fixing rod 2215 to realize the surface growth of biofilm to ensure sludge activity.

[0072] The transmission assembly includes a reducer 22114, a drive motor 22115, a motor fixing seat 22116, a small sprocket 22113, a large sprocket 22111, a chain 22112, a central transmission shaft 2218, a bearing seat 22110, and a bearing seat fixing plate 2219; the central transmission shaft 2218 is a main component, which is not only a transmission but also a connection and fixing carrier for other components; the diaphragm side clamp fixing rod 2215 is fixed to the flanges 2217 on both sides of the central transmission shaft 2218, and the large sprocket 22111 is fixed to the flanges 2217 on both sides of the large sprocket 22111. It is fixed to one side of the diaphragm side clamping plate fixing rod 2215; both sides of the central transmission shaft 2218 are connected to the bearing seat 22110, and the bearing seat 22110 is fixed to the bearing seat fixing plate 2219; the center of the small sprocket 22113 is connected to the output shaft of the reducer 22114, and is connected to the large sprocket 22111 through the chain 22112; the transmission assembly adopts chain gear transmission to drive the entire biological wheel to rotate; the stirring paddle 2216 is installed at the top of the diaphragm side clamping plate fixing rod 2215, and plays a stirring and flow-pushing role in the rotation process.

[0073] The post-supplementary aeration system 222 serves as a supplementary part of the Cyber ​​self-aeration system and can be flexibly opened according to water quality, temperature and other conditions. It includes aeration pipes 2222, aeration branch pipes 2223, microporous aerators, blowers 2221, etc.

[0074] The dosing and mixing area 23 includes a dosing and distributing tube 231 and a dosing and mixing stirrer 232. The end of the dosing and distributing tube 231 is perforated to distribute the dosing points. The dosing and mixing stirrer 232 mixes the dosing evenly and fully.

[0075] The sludge sedimentation and separation area 24 is provided with a water distribution pipe 242 for uniform water distribution to achieve sludge sedimentation in each sedimentation area. The water distribution pipe 242 is fixed in the middle part by a water distribution pipe bracket 241; the bottom sludge sedimentation and aggregation area is set as an inverted cone structure to facilitate sludge sedimentation and aggregation; a sludge suction pipe 243 is distributed at the bottom of the sludge sedimentation and aggregation area for sludge discharge; a water outlet weir assembly 248 is provided at the upper part of the sludge sedimentation and separation area 24, and the water outlet weir assembly 248 is fixed by a water outlet weir bracket 247. The supernatant enters the water outlet weir trough through the triangular weirs on both sides, and then flows out through the pipeline at the end of the water outlet weir assembly 248 to the modular filter cloth filtration and backwashing system 3.

[0076] Part of the sludge at the bottom of the sludge sedimentation and separation zone 24 flows to the front-end aerobic biochemical treatment zone 21 for intermittent reflux through the sludge pump 244, and part of it is intermittently discharged to the sludge dewatering room through the sludge pump 244 for desludge treatment.

[0077] The third part is a modular filter cloth filtration and backwashing system 3, which integrates the filter cloth filtration system, backwashing and mud discharge system, and purification electrical control system.

[0078] The supernatant in the sludge sedimentation and separation zone 24 is connected to the water inlet 34 of the box body and enters the filtering section inside the box body 31 after passing through the water inlet anti-impact plate 36; the sewage enters the internal space of the filter cloth filter assembly 37 through the outer surface of the filter cloth of the filter cloth filter assembly 37 and is filtered in this process. The clean water after filtration is collected into the side branch pipes 39 on both sides of the equipment through the side outlets 38 on both sides of the filter cloth filter assembly 37 and then enters the purified water outlet weir 310, and is finally discharged through the total outlet 35. When the outer surface of the filter cloth of the filter cloth filter assembly 37 is blocked and the liquid level in the box 31 rises to the specified level, the rotating motor 312 drives the backwash suction assembly 313 to operate. The backwash suction assembly 313 rotates along the surface of the filter cloth filter assembly 37 and back-sucks the sludge adsorbed on the surface of the filter cloth; at the same time, the purification control assembly 319 inside the equipment room 32 controls the backwash electric valve to open for 30 seconds and then starts the backwash pump 316 to backwash the filter cloth filter assembly 37, and stops backwashing after the liquid level drops to the set value; when too much mud accumulates at the bottom of the purification room 33 after a certain set time, the mud discharge is turned on, and at the same time, the purification control assembly 319 controls the mud discharge electric valve to open for 30 seconds and then starts the backwash pump 316 to discharge the mud at the bottom of the purification room 33.

[0079] The filter cloth filtration system includes a filter cloth filtration assembly 37, a filter cloth filtration fixing assembly, etc. The filter cloth filtration assembly 37 is a very important component of sewage filtration, which can intercept and filter most of the suspended particles in the water, and the filter cloth filtration assembly 37 can be designed to be connected and fixed in two semicircular shapes, so that each part can be independently disassembled and replaced, and the filter cloth filtration fixing assembly realizes the installation and fixation of the filter cloth filtration assembly 37.

[0080] The backwash and mud discharge system includes: a rotating motor 312, a backwash suction assembly 313, a central pipe shaft assembly 311, a backwash pump 316, a backwash electric valve, a mud discharge electric valve, a mud discharge pipeline 314 and a backwash pipeline 315. The backwash system can ensure that the filter cloth disc will not be blocked by mud during operation, so that the disc can perform continuous and uninterrupted filtering.

[0081] The purification control component 319 is integrated in the main control cabinet, and the liquid level sensor 318 senses the liquid level and sends a signal to the electrical system, and the purification control component 319 controls the operation of the rotating motor 312 and the backwash pump 316. The purification control component 319 can realize electrical manual and automatic switching to ensure that the system can operate automatically under normal circumstances and can be manually adjusted and controlled when a fault occurs.

[0082] The entire box 31 is divided into an equipment room 32 and a purification room 33. The equipment room 32 integrates a purification control component 319, a rotating motor 312, a backwash pump 316, a backwash pipeline 315, a backwash electric valve, and some external pipelines, a lighting lamp 320, a double door 321, etc.; the purification room 33 integrates a filter cloth filtration system, and other components of the backwash and mud discharge system except electrical components.

[0083] The fourth part is the sterilization and disinfection system 4, which adopts a pipeline-type ultraviolet cavity disinfection, including an ultraviolet lamp 48, a quartz sleeve 49, a cavity unit, a cleaning unit, a tail end support unit, an ultraviolet intensity detection unit 415, an ultraviolet lamp ballast and an electric control system.

[0084] The cavity unit includes: a cavity 41, a sealing plate, a sleeve sealing end cover, a lamp line outlet end cover, a variable diameter water inlet pipe 43, and a cavity support 42; the cavity unit is the carrier of the sterilization and disinfection system, and water flows into the cavity through the cavity water inlet 45, and flows out from the cavity water outlet 46 after being irradiated by the ultraviolet lamp 48; at the same time, the cavity unit is provided with a vent 47 and a sampling port 418.

[0085] The cleaning unit includes: a screw motor 411, a motor support assembly, a coupling, a screw 410, a screw nut 412, front and rear end bearings, a bearing front end cover, a skeleton oil seal, a packing seal assembly, a bearing rear end cover, a cleaning ring assembly 414, a cleaning plate 413, a Hall switch assembly 417, etc.

[0086] The motor support assembly is fixed to the sealing plate; the lead screw motor 411 is fixed to the motor support assembly; the lead screw motor 411 is connected to the lead screw 410 through a coupling; the front end cover of the bearing is fixed to the sealing plate; the front end bearing, skeleton oil seal, and packing assembly are fixed to the front end cover of the bearing; the rear end cover of the bearing is fixed to the support plate, and the rear end bearing is fixed to the rear end cover of the bearing; the two ends of the lead screw 410 pass through the front and rear bearings respectively, and the lead screw nut 412 is screwed into the lead screw 410 and fixed to the cleaning plate 413; the cleaning ring assembly 414 is fixed to the cleaning plate 413; during cleaning, the lead screw motor 411 moves, driving the lead screw 410 to rotate, and the lead screw 410 drives the lead screw nut 412 to move linearly, thereby driving the cleaning plate 413 to move linearly, thereby ensuring that the cleaning ring assembly 413 is sleeved on the quartz sleeve 49 and moves back and forth to clean the quartz sleeve 49; the Hall switch assembly 417 is fixed to the sealing plate, and the cleaning movement is positioned by the Hall switch assembly 417 to ensure that there will be no collision problems during the movement process.

[0087] The tail end support unit includes a support plate and a sleeve support assembly.

[0088] The motor protection cover 44 is installed on one side of the sealing plate of the cavity 41 to protect the screw motor 411 and the mounting parts on the sealing plate surface.

[0089] The quartz sleeve 49 is inserted into the sleeve support member of the tail end support unit through the sleeve sealing end cover.

[0090] The ultraviolet lamp 48 is inserted into the quartz sleeve 49, and the ultraviolet lamp 48 can ensure that the filtered water is sterilized and disinfected, and achieves the discharge with the sterilization index reaching the standard.

[0091] The ultraviolet intensity detection unit 415 can realize the effective output of ultraviolet dosage and ensure that the cleaning system can be cleaned in time.

[0092] The temperature control unit 416 is fixed to the upper surface of the cavity 41 to ensure the normal operation of the cavity 41 and prevent dry burning.

[0093] The UV lamp ballast is installed inside the electric control cabinet, and the sterilization and disinfection system is controlled by the electric control part.

[0094] The fifth part is the overall electrical control system, including the automatic operation system, fault alarm system, and IoT remote monitoring system. The electrical control system can realize the orderly control of sewage treatment equipment, ensure the normal operation of the system and save energy; and can realize automatic alarm in case of faults; the IoT system can realize remote monitoring and unmanned operation of sewage treatment equipment.

[0095] The utility model aims to solve the problems of long sewage treatment construction period, high investment cost, large floor area, complex construction process, cumbersome structural design and high operating cost.

[0096] The utility model is suitable for replacing civil engineering-type municipal sewage treatment projects or township sewage treatment projects.

[0097] The utility model can solve the emergency sewage treatment projects in some places and the sewage treatment projects with limited civil engineering land in a short period of time.

[0098] The utility model is a sewage treatment system with the characteristics of assembly, modularization, automation, convenient transportation and installation.

[0099] The utility model has the advantages of strong corrosion resistance, arbitrary expansion and mobility, etc., so that the sewage treatment plant achieves the goals of low investment, fast production and relocation.

[0100] The utility model adopts an assembled enamel plate structure through the main biochemical part, which can be quickly assembled on site. The internal biochemical treatment parts such as facultative aerobic, aerobic, and sedimentation separation are formed through partitions; the filtration depth treatment part uses a modular filter cloth box structure; and the effluent disinfection adopts a cavity-type ultraviolet disinfection module.

[0101] The utility model integrates the anaerobic biochemical treatment, aerobic biochemical treatment, mixed phosphorus removal by adding chemicals, and sedimentation separation of the sewage treatment system into the interior of an assembled tank body; a modular filter cloth box is used for filtration depth treatment; a cavity-type ultraviolet disinfection module is used for effluent disinfection; and various required supporting equipment are integrated into the assembled tank body, thereby realizing the integration, integration, serialization, standardization, and automation of sewage treatment equipment, which is convenient for transportation and deployment, as well as operation and maintenance; it reduces both investment costs and floor space.

[0102] The main process of the utility model is that domestic sewage is collected by the sewage network and then enters the grille well, and the larger particles in the sewage are intercepted by the basket grille; the sewage enters the regulating pool, the regulating pool adjusts and homogenizes the water volume and water quality of the sewage, and enters the anoxic biochemical treatment area 21 inside the assembled enamel plate tank body 1 through the pipeline valve and electromagnetic flowmeter, and the denitrifying bacteria in the anoxic biochemical treatment area 21 use the nitrate nitrogen in the reflux liquid of the aerobic area as an electron acceptor to convert the nitrate nitrogen into nitrogen gas for removal, thereby completing the denitrification; then the sewage enters the aerobic biochemical treatment area 22, and the self-aeration biological rotor system 221 and the post-supplementary aeration system 222 ensure the normal activity of high-concentration microorganisms, and the total Nitrogen, total phosphorus, COD, BOD, ammonia nitrogen, etc. are effectively reduced; the treated mud and water mixture enters the dosing mixing area 23 for phosphorus removal; the fully mixed mud and water enters the sludge sedimentation and separation area 24 through the water distribution pipe 242 for uniform water distribution, and uses the effect of natural sedimentation or flocculation sedimentation to separate solids and liquids, reducing SS and TP in the water; the supernatant flows into the effluent weir assembly 248 at the top of the sludge sedimentation and separation area 24 through the pipeline to enter the modular filter cloth filtration and backwashing system 3, and the treated water is deeply filtered and purified to ensure that the SS value is below 10 mg / L; finally, it enters the sterilization and disinfection system 4 through the pipeline for disinfection to ensure that the effluent meets the first-level A effluent discharge index.

[0103] The utility model has high integration and modularization, relatively simple equipment, high degree of automation, low investment cost, low operation and maintenance cost, and is easy to transport and install. The assembled tank technology has the advantages of short construction period, low cost, strong corrosion resistance, and can be expanded and moved at will, so that the sewage treatment plant achieves the goals of low investment, quick production, and relocation.

[0104] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. An assembled modular sewage treatment device, characterized in that: It comprises an assembled enamel plate tank body (1), a sewage biochemical treatment system (2) arranged inside the assembled enamel plate tank body (1), and a modular filter cloth filtering and backwashing system (3) and a sterilization and disinfection system (4) arranged outside the assembled enamel plate tank body (1), wherein the sewage biochemical treatment system (2), the modular filter cloth filtering and backwashing system (3), and the sterilization and disinfection system (4) are connected in sequence; The sewage biochemical treatment system (2) comprises an anaerobic biochemical treatment zone (21), an aerobic biochemical treatment zone (22), a drug adding and mixing zone (23) and a sludge sedimentation and separation zone (24).

2. The assembled modular sewage treatment device according to claim 1, characterized in that: The assembled enamel plate tank body (1) is installed on a reinforced concrete base (5). The assembled enamel plate tank body (1) includes a plurality of layers of enamel plate splicing bodies connected by self-locking bolts (12). Each layer of enamel plate splicing bodies is spliced ​​by a plurality of enameled steel plates (11). The outer wall of the assembled enamel plate tank body (1) is provided with a plurality of stirrups (13). The assembled enamel plate tank body (1) is provided with a plurality of partition plates (14) inside. The partition plates (14) divide the internal space into two types of partition plates. The assembled enamel plate tank (1) is provided with a fence platform (15); the assembled enamel plate tank (1) is provided with an upper and lower guardrail inclined ladder (16) connected to the fence platform (15) on the outside; and the assembled enamel plate tank (1) is provided with an upper and lower cage-shaped vertical ladder (17) in the anoxic biochemical treatment zone (21) and the aerobic biochemical treatment zone (22) inside the assembled enamel plate tank (1).

3. The assembled modular sewage treatment device according to claim 2, characterized in that: A plug flow stirring and mixing device (211) is provided in the anoxic biochemical treatment zone (21).

4. The assembled modular sewage treatment device according to claim 3, characterized in that: The aerobic biochemical treatment area (22) is provided with a self-aerating biological rotor system (221) and a post-supplementary aeration system (222); The self-aerating biological wheel system (221) comprises a biological wheel maintenance gantry (22118), two annular membrane side clamps (2211) are arranged below the biological wheel maintenance gantry (22118), a plurality of membrane through-rods (2212) are evenly installed on the circumference between the two annular membrane side clamps (2211), and a plurality of aeration membranes (2213) are installed on each membrane through-rod (2212). A through-rod limiting plate (2214) is installed on the diaphragm through-rod (2212) on the outside of (2211), and a plurality of diaphragm side clamp fixing rods (2215) are circumferentially fixed on the outside of each annular diaphragm side clamp (2211), and a stirring paddle (2216) is installed between two corresponding diaphragm side clamp fixing rods (2215), and a flange (2217) is fixed in the middle of the plurality of diaphragm side clamp fixing rods (2215) on the same side. A central transmission shaft (2218) is installed between two flanges (2217), bearing seat fixing plates (2219) are provided below both ends of the central transmission shaft (2218), a bearing seat (22110) is installed on the bearing seat fixing plate (2219), the central transmission shaft (2218) is installed between the two bearing seats (22110), a large sprocket (22111) is installed on the outer side of a plurality of diaphragm side clamping plate fixing rods (2215) on one side, the large sprocket (22111) is connected to a small sprocket (22113) through a chain (22112), the small sprocket (22113) is connected to a driving motor (22115) through a speed reducer (22114), the driving motor (22115) is installed on a motor fixing seat (22116), and a plurality of fiber bundle bionic fillers (22117) are installed between a plurality of diaphragm side clamping plate fixing rods (2215) on the same side; The post-supplementary aeration system (222) comprises a blower (2221) arranged outside the assembled enamel plate tank body (1); the blower (2221) is connected to a microporous aerator via a blower aeration pipe (2222); the microporous aerator is connected to a plurality of aeration branch pipes (2223); the microporous aerator and the aeration branch pipes (2223) are located inside the assembled enamel plate tank body (1).

5. The assembled modular sewage treatment device according to claim 4, characterized in that: The dosing and mixing area (23) is provided with a dosing and distributing pipe (231) and a dosing and mixing stirrer (232), and dosing holes are evenly distributed on the dosing and distributing pipe (231).

6. The assembled modular sewage treatment device according to claim 5, characterized in that: A water distribution pipe (242) is installed in the middle of the sludge sedimentation and separation zone (24) through a plurality of water distribution pipe brackets (241); the bottom of the sludge sedimentation and separation zone (24) is a sludge sedimentation and accumulation zone; a sludge suction pipe (243) is connected to the bottom of the sludge sedimentation and accumulation zone; the sludge suction pipe (243) is connected to a sludge discharge pump (244); the outlet of the sludge discharge pump (244) is connected in parallel to a sludge discharge pipe (245) and a sludge return pipe (246); the sludge return pipe (246) is connected to the anoxic biochemical treatment zone (21); a water outlet weir assembly (248) is installed in the upper part of the sludge sedimentation and separation zone (24) through a water outlet weir bracket (247); the end of the water outlet weir assembly (248) is connected to a modular filter cloth filtering and backwashing system (3) through a pipeline.

7. The assembled modular sewage treatment device according to claim 6, characterized in that: The modular filter cloth filtering and backwashing system (3) comprises a box body (31) installed on a reinforced concrete base (5), wherein the box body (31) is divided into an equipment room (32) and a purification room (33), wherein a box body water inlet (34) is provided at the lower end of a side wall of the purification room (33) and a total water outlet (35) is provided at the upper end, wherein a water inlet anti-collision plate (36) is provided at the box body water inlet (34) in the purification room (33) and two groups of filter cloth filtering components (37) are provided at the rear section of the water inlet anti-collision plate (36), wherein both sides of each group of filter cloth filtering components (37) are provided with side water outlets (38), wherein the side water outlets (38) are connected to side branch pipelines (39), wherein the side branch pipelines (39) are connected to a purified water outlet weir (310), wherein the purified water outlet weir (310) is provided corresponding to the total water outlet (35), and wherein the two groups of filter cloth filtering components (37) are provided with side water outlets (38) and the side branch pipelines (39) are connected to purified water outlet weirs (310), wherein the purified water outlet weirs (310) are provided corresponding to the total water outlet (35), and wherein the two groups of filter cloth filtering components (37) are provided with side water outlets (38) and the side branch pipelines (39) are connected to purified water outlet weirs (310). A central pipe shaft assembly (311) is rotatably mounted at the center of each filter element (37), and the central pipe shaft assembly (311) is connected to a rotating motor (312). The central pipe shaft assembly (311) is provided with a backwash suction assembly (313) at the front side of the two groups of filter cloth filter assemblies (37). The backwash suction assembly (313) is connected to a mud discharge pipeline (314) and a backwash pipeline (315). The mud discharge pipeline (314) is located at the bottom of the purification room (33). A mud discharge electric valve is provided on the mud discharge pipeline (314), and a backwash electric valve is provided on the backwash pipeline (315). The mud discharge electric valve and the backwash electric valve are both connected to a backwash pump (316). The mud discharge pipeline (314) is connected to a backwash and mud discharge outlet (317), and the backwash and mud discharge outlet (317) is arranged on the side wall of the purification room (33).

8. The assembled modular sewage treatment device according to claim 7, characterized in that: A liquid level sensor (318) is provided in the purification room (33); a purification control component (319) and a lighting lamp (320) are provided in the equipment room (32); a rotating motor (312), a backwash pipeline (315), a backwash electric valve, and a backwash pump (316) are all arranged in the equipment room (32); the rotating motor (312), the backwash electric valve, the mud discharge electric valve, the backwash pump (316), and the liquid level sensor (318) are all connected to the purification control component (319); and a double door (321) is provided on the top of the equipment room (32).

9. The assembled modular sewage treatment device according to claim 8, characterized in that: The sterilization and disinfection system (4) comprises a cavity (41), wherein the cavity (41) is installed on a reinforced concrete base (5) through a cavity support (42), a variable diameter water inlet pipe (43) is provided at one end of the cavity (41) and a motor protection cover (44) is provided at the other end, a cavity water inlet (45) is provided at the end of the variable diameter water inlet pipe (43), a cavity water outlet (46) is provided at the top of the cavity (41) near the motor protection cover (44), a vent (47) is provided at the bottom of the variable diameter water inlet pipe (43), a plurality of ultraviolet lamps (48) are installed on the circumference of the cavity (41), a quartz sleeve (49) is provided outside the ultraviolet lamp (48), and a central position in the cavity (41) is provided. A lead screw (410) is installed in the housing, the lead screw (410) is connected to a lead screw motor (411) through a coupling, the lead screw motor (411) is located in a motor protection cover (44), a lead screw nut (412) is threadedly installed on the lead screw (410), a plurality of cleaning plates (413) are circumferentially installed on the outer wall of the lead screw nut (412), a cleaning ring assembly (414) is installed on the cleaning plate (413), and the cleaning ring assembly (414) is sleeved outside the quartz sleeve (49), an ultraviolet intensity detection unit (415) and a temperature control unit (416) are installed on the cavity (41), and a Hall switch assembly (417) is installed in the motor protection cover (44).

10. The assembled modular sewage treatment device according to claim 9, characterized in that: It also includes a general electrical control system, which includes an automatic operation system, a fault alarm system and an Internet of Things remote monitoring system.

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