52results about How to "Reduce civil works" patented technology

The invention discloses a treatment method of arsenic wastewater. The treatment method comprises the following steps: optionally adding acid liquor into the arsenic wastewater to adjust the pH value to 0-5; introducing the arsenic wastewater into a reaction unit, continuously removing arsenic by adding sulfide in multistage manner; carrying out solid-liquid separation on the effluent after reaction, recycling the separated arsenic slag; adding alkali into the separated effluent to perform electrochemical advanced treatment, wherein the electrochemical advanced treatment includes an electrolytic coagulation step, an electrolytic flotation step and an electrolytic oxidation reduction step, in the electrolytic coagulation, cations are generated by the electrolyzation of a soluble anodic iron plate for flocculation; carrying out aerated oxidation on the effluent after flocculation to generate floc and micelle sediment including ferric ions, and then carrying out solid-liquid separation, wherein the liquid supernatant after separation can be recycled or reach the standard and drain outwards. The treatment method of arsenic wastewater has the advantages of simple technology, low investment, low cost and high resource recovery and recycling rate, and being green and environment-friendly, and being capable of treating continuously and the like.

The invention provides a two-side full automatic battery swap station capable of compatibility of multiple vehicle types, which belongs to the technical field of electric charging of pure electric vehicles, and resolves the problem of a conventional two-side battery swap station that multiple vehicle types are not compatible and automation degree is not high. The two-side full automatic battery swap station capable of compatibility of multiple vehicle types comprises a parking platform and two electric charging containers, which are symmetrically disposed at two sides of the parking platform.Each electric charging container is provided with a conveying track along the length direction of the container, and the conveying track is provided with an electric charging robot, and one side of the conveying track is provided with an electric charging rack. Each electric charging container is provided with an electric charging system, a control system, and a power distribution system, whereinthe control system is respectively connected to the electric charging system and the power distribution system; the electric charging system is connected to the electric charging rack. The whole battery swap station adopts a container type to wrap all devices, which facilitates transport and reduces trouble of land building, and the battery swap station can be placed at any places based on demand.

The invention comprises a core tube, an insulating layer and an outer protecting jacket. There is the insulating layer outside the core and the outer protecting jacket outside the insulating layer. There are more than one hard thermal insulation supporting rings between the core tube and the outer protecting jacket. Because of having the expansion self-compensating effect when used at high temp., the structure of the invention can't be destroyed, so as to make it have a good thermal insulation effect.

The invention discloses a composite HBF (Honess Hybrid Biological&Fixed film Technology) module reactor which comprises an anaerobic pool, an anoxic pool, an aerobiotic pool and an SBR (Sequencing Batch Reactor) pool, wherein the SBR pool comprises a first SBR pool and a second SBR pool which are connected with the aerobiotic pool at the same time. The aerobiotic pool, the first SBR pool and the second SBR pool are internally provided with enzyme floating fillers, respectively. The anaerobic pool, the anoxic pool, the aerobiotic pool, the first SBR pool and the second SBR pool are module members. The invention further provides a sewage treatment process. Based on AAO-SBR (Anaerobic-Anoxic-Oxic-Sequencing Batch Reactor), the aerobiotic pool, the first SBR pool and the second SBR pool are internally provided with enzyme floating fillers respectively as biological attaching carriers, so that the biomass of the reactor is more than 2 times of that by an activated sludge process in volume, thereby greatly enhancing the processing capacity of the reactor and simplifying the structure of the reactor.

The invention relates to a constant-effluent variable-load SVBR sewage processing technology. The technology comprises the following steps: introducing sewage into an inflow and sludge reflux well, primarily processing the sewage by a grating, then mixing the sewage with reflux sludge, transporting the sewage to an anaerobic and primary sedimentation zone by a lifting pump, then processing the sewage in an AO biological processing area, further purifying the sewage and carrying out primary sludge-water separation in an anoxic and pre-sedimentation zone, finally carrying out final sludge-water separation in a secondary sedimentation and effluent zone, disinfecting the effluent by a tube-type ultraviolet disinfector, and discharging the disinfected effluent out of the system. Through the optimized combination of various functional zones and the circulating reflux design, the sewage processing technology allows the inflow rate and the water level and load in the reactor to change within a designed range, the effluent rate of the system always remains relatively constant and continuous, and the processing process is a continuous non-stable process. The sewage processing technology integrates the functions of lifting, modulating, primary settlement, biological degradation, secondary settlement, and sludge reflux in one tank, has the characteristics of little occupied area and equipment, and simpleness in operation and management, and is especially applicable to the sewage treatment in small towns.

The invention discloses a rotary fluidized drying device and a rotary fluidized drying method and relates to a drying device and a drying method applied to sludge treatment. In the device, the two ends of a machine body (8) is provided with a front bearing pedestal (11) and a rear bearing pedestal (6) respectively; a rotating shaft (9) is positioned in the machine body (8); the two ends of the rotating shaft (9) are positioned in the front bearing pedestal (11) and the rear bearing pedestal (6); one end of the rotating shaft (9) is connected with a motor (12) through a speed changer; a crushing device (2), a propulsion device (3) and a scraper plate (4) are arranged on the rotating shaft (9) of the machine body (8) from the front bearing pedestal (11) to the rear bearing pedestal (6) sequentially; a wet sludge charge opening (1) is arranged on the upper side of the crushing device (2); a high-temperature smoke inlet (10) is arranged on the lower side of the crushing device (2); a low-temperature smoke outlet (5) is arranged on the upper side of the scraper plate (4) at one end of the rear bearing pedestal (6); and a dry sludge discharge opening (7) is arranged on the lower side of the scraper plate (4) at one end of the rear bearing pedestal (6). The device can realize the continuous operation of sludge drying and has the advantages of high production efficiency, low heat consumption and particularly low power consumption.

The present invention provides one kind of air-entraining air floating machine and one air-entraining air floating apparatus with the air-entraining air floating machine. The air-entraining air floating machine includes one frame, one submerged motor with one hollow shaft, one air dispersing vane wheel set in the lower end of the hollow shaft and with vanes and one inside cavity communicated to the hollow shaft, and one air pipe to introduce air from outside to the hollow shaft and the air dispersing vane wheel. The air-entraining air floating machine has simple structure, convenient operation, low maintenance cost, high reliability and high power transferring efficiency.

The invention provides a magnesium oxide board pushing type stereoscopic storage device and a storage method. The device comprises a stereoscopic storage rack assembly for storing magnesium oxide boards, a board pushing assembly for pushing the magnesium oxide boards, a baffle assembly for preventing the magnesium oxide boards from rushing out of storage racks due to inertia after the magnesium oxide boards enter the stereoscopic storage racks, and a lifting table assembly for moving the stereoscopic storage rack assembly, the board pushing assembly and the baffle assembly up and down so that the magnesium oxide boards can be fed into the stereoscopic storage racks successfully. When one stereoscopic storage rack is filled with the stored magnesium oxide boards, all the boards are pushed by the magnesium oxide board pushing type stereoscopic storage device to another unoccupied stereoscopic storage rack at a time, so that new magnesium oxide boards can be received. The effect that after one stereoscopic storage rack is filled with the magnesium oxide boards, all the magnesium oxide boards can be pushed to another unoccupied stereoscopic storage rack rapidly is achieved, the effect that a production line can be operated in a non-stop mode is achieved, and the operation efficiency of the production line is improved.

The invention discloses a combined super-fine crusher. The combined super-fine crusher comprises a speed reducer, a vertically arranged main shaft, an upper jacket, an outer taper sleeve, a movable taper sleeve and a grinding base support sleeve, wherein a power output end of the speed reducer is in transmission connection with the main shaft; the movable taper sleeve and the grinding base support sleeve are in key connection with the main shaft from top to bottom respectively; the upper jacket is arranged outside the outer taper sleeve; the outer side of the movable taper sleeve is provided with a movable conical tooth plate; the inner side of the outer taper sleeve is provided with an outer conical tooth plate; an annular crushing cavity with a wide top and a narrow bottom is formed between the movable conical tooth plate and the outer conical tooth plate; the outer side of the grinding base support sleeve is provided with a grinding base provided with sieve pores; and a grinding device is arranged above the grinding base. The combined super-fine crusher finishes crushing in a plurality of stages according to a brand new design concept, applies forces according to different types, selects materials according to the forces, realizes controllable low speed and completes thick, medium, fine and super-fine crushing in one machine. The combined super-fine crusher has the characteristics of high energy efficiency, low abrasion wear, vibration-free property, low noise and remarkable social and economic benefits.

The invention discloses a coupling type biological denitrification method which comprises the following steps: enabling sewage to enter a front-end anoxic pool, mixing with returned sludge and mixed liquid and carrying out denitrification reaction; entering an aerobic pool, removing an organic matter through aeration, realizing the nitration reaction and synchronizing the nitration reaction and the denitrification reaction; entering a rear anoxic pool and carrying out denitrification reaction again; and alternately entering a first SBR (Sequencing Batch Reactor) pool and a second SBR pool, treating a surplus carbon source generated in the denitrification or deeply nitrating and simultaneously carrying out sludge return. The invention also provides a coupling type biological denitrification system. The coupling type biological denitrification method and the coupling type biological denitrification system have the beneficial effects that pre-denitrification plus aerobic denitrification and CODcr degrading plus post-denitrification plus sequencing batch aerobic reaction are adopted to overcome the influence of an excessive denitrification carbon source on outlet water, the nitrogen removal efficiency is greatly improved, the nitrogen removal effect is remarkable, and the coupling type biological denitrification system is suitable for degrading high ammonia nitrogen and high COD (Chemical Oxygen Demand) wastewater and particularly has an remarkable effect on coal chemical industry wastewater treatment.

This invention belongs to the power engineering, referring to cement and mineral sophistication production equipment. It includes revolving canister(8),front axletree seat(7),back axletree seat(10).The front of (8) is connected to (7) by axletree, the back to (10).There are feed-in meatus (1) and feed-out meatus (6) in (8).The character is that in (8) there are 1-3 picking power equipments. This invention integrates levigation and picking to increase output, reduce energy sourse, decrease expenditure. Comparing with the same scale equipment, its output increases by more than 20% and the consumption of electricity decreases by more than 30%.

A compound muffler for high temperature and high pressure steam / gas discharge. It is a new type of noise reduction device for various types of high-temperature and high-pressure air exhaust / exhaust steam, including: the two ends of the injection outer cylinder armor are welded with oval head armor; One end of the head armor piece is welded with the interface throttle pipe piece A with the pipe end plate A piece, and the other end of the oval head piece A piece is welded with the lifting ear piece A; On the joint throttling tube A, there is welded the plugging ring plate A with the throttling and decompression tube A and the tube end plate B respectively; the above-mentioned related components are welded firmly and manufactured with them. Consists of a complete set of products.

The invention discloses dust-free screening and crushing integrated equipment. The integrated equipment comprises a machine frame, a first level crushing device, a second level crushing device, a third level crushing device, a screening device and a dust removing device. The top of the machine frame is provided with a feeding inlet and a suction opening. The first level crushing device, the second level crushing device, the third level crushing device and the screening device are located in the machine frame and are arranged in a dust-free screening and crushing integrated equipment body in a totally closed mode. The dust removing device is located outside the machine frame and connected with the suction opening. The dust-free screening and crushing integrated equipment has the beneficial effects that outdoor arrangement is adopted, concrete pouring and embedded part fixing and bearing are adopted for infrastructure construction, and a separate crushing building does not need to be constructed; dust leakage is avoided, an original coal crushing room pervaded with dust is removed, the working environment is optimized, and the cleaning workload is also reduced; the occupied area is decreased, the space is reduced, and the cost is reduced substantially.

The invention discloses a multilayer plastic thermal insulation greenhouse which comprises a plastic membrane, a greenhouse beam and frame strips. The greenhouse beam is arc-shaped, a cross section of the greenhouse beam is I-shaped, a connection neck, an upper wall and a lower wall are arranged on the greenhouse beam, extending ends are arranged at two ends of the upper wall and / or the lower wall of the greenhouse beam, and the space enclosed by every two extending ends forms a pressing sheet groove. A primary pressing membrane groove and a second pressing membrane groove are arranged on the inner walls of the extending ends and are corrugation-shaped. Protruding necks are arranged in the pressing sheet grooves on the upper wall and / or the pressing sheet grooves on the lower wall, primary pressing membrane grooves and secondary pressing membrane grooves are arranged on two sides of the protruding necks and correspond to the primary pressing membrane grooves and the second pressing membrane grooves on the extending ends. The multilayer plastic thermal insulation greenhouse is simple in structure, convenient to use, less in construction, firm and durable, strong in wind and snow resistance, high in strength, strong in pressure resistance, corrosion resistive, long in service life, easy to install, low in construction cost, good in thermal-insulation and moisturizing effect and capable of replacing a damaged plastic membrane easily.

The invention relates to a screw type pneumatic drying machine and method. The screw type pneumatic drying machine comprises an airtight drying machine body (3), wherein the drying machine body (3) comprises a first end part (31), a second end part (32) and a shell (33); the first end part (31) and the second end part (32) are oppositely arranged, and the first end part (31); the first end part (31) and the second end part (32) are connected through the shell (33); and the second end part (32) and the shell (33) form an airtight working space. The drying machine also comprises a screw propulsion unit (2), a wet sludge feed port (1), high temperature smoke inlet (7) and a low temperature smoke outlet (4), wherein the screw propulsion unit (2) is installed in the working space; the wet sludge feed port (1) and the high temperature smoke inlet (7) are respectively arranged on the drying machine body (3); and the low temperature smoke outlet (4) is arranged on the drying machine body (3) and penetrates through the shell (33). The device and method are suitable for drying sludge, and have the advantages that the operation is continuous, the labor intensity is low, and the heat consumption is low.

The invention discloses a wind farm substation, comprising a modular SVG prefabricated cabin, an SVG transformer cabin, a secondary equipment cabin, a switch cabinet cabin, a main transformer cabin and a GIS cabin which are assembled in advance; the SVG prefabricated cabin, SVG transformer cabin, switch cabinet cabin, main transformer cabin and GIS cabin are connected by a high voltage cable in sequence; The secondary equipment cabin monitors each cabin through a secondary loop; By adoption of the modular SVG prefabricated cabin, SVG transformer cabin, secondary equipment cabin, switch cabinetcabin, main transformer cabin and GIS cabin which are mounted, debugged and assembled in factory in advance, the wind farm substation can be quickly built in the designated place to meet the production requirements, reduce the workload of on-site civil engineering, installation, debugging and the like, improve construction efficiency, shorten the construction cycle, at the same time, each cabin adopts modular settings, the internal equipment can be changed according to the actual application scene, the substation has high flexibility, adapts to various scenarios, and modular and standardizedproduction and processing are conducive to product quality control and construction safety assurance.

The invention discloses an intermittent blowdown flash tank with a self water sealing function and a drainage system and method. The intermittent blowdown flash tank with the self water sealing function comprises an intermittent blowdown flash tank body, at least two drainage outlets are formed in the bottom of the intermittent blowdown flash tank body, a flow guiding pipe communicating with one drainage outlet is arranged in the intermittent blowdown flash tank body, and the height of the flow guiding pipe is higher than the lowest maintaining water level of the intermittent blowdown flash tank. A flow guiding hole is formed in the part, above the lowest maintaining water level of the intermittent blowdown flash tank, of the pipe wall of the flow guiding pipe, and the formed position of the flow guiding hole can ensure that the water stored in the intermittent blowdown flash tank can be always maintained at a lowest water level. The intermittent blowdown flash tank has the beneficialeffects that the system is greatly simplified and optimized, backflow of a corrosive medium in a drainage tank is prevented, and thus the safety of a machine unit is improved. The intermittent blowdown flash tank with the self water sealing function and the drainage system are particularly suitable for design of drainage systems for starting intermittent blowdown flash tanks of boilers, small machine units and gas turbine waste heat boilers.

The invention discloses a method for treating arsenic-containing wastewater, which comprises the following steps: selectively adding acid solution to the arsenic-containing wastewater to adjust its pH value from 0 to 5; then passing the arsenic-containing wastewater into a reaction device, Continuous treatment and removal of arsenic by adding sulfide in multiple stages; solid-liquid separation of the effluent after reaction, and recycling of the separated arsenic slag; addition of alkali to the separated effluent, electrochemical advanced treatment of the effluent, electrochemical advanced treatment includes electrolysis Coagulation, electrolytic air flotation and electrolytic redox steps; in electrolytic coagulation, cations are generated by electrolysis of soluble anode iron plates for flocculation; the subsequent effluent is aerated and oxidized to generate flocs containing ferric ions in the effluent, The micelle-like precipitate is then separated from the solid and liquid, and the separated supernatant can be recycled or discharged up to the standard. The invention has the advantages of short process, small investment, low cost, high resource recycling rate, environmental protection, continuous processing and the like.

The invention discloses a mounting method for a bridge crane main beam of a pump station main power house. The mounting method comprises the following steps that S1, a bridge crane track beam and a supporting system are erected; s2, bridge crane track beams are connected with the supporting system, and the bridge crane track beams inside and outside the installation room are connected to form track beams; s3, an upstream side end beam and a downstream side end beam of the installation room are hoisted; s4, the first main beam is hoisted and translated; s5, hoisting a second main beam; s6, bridge crane accessory equipment is installed; and S7, transversely moving the whole bridge crane. According to the invention, the time waste of a large amount of cutting-off process time for the appearance quality of the structure and before decoration construction in the existing sky and ground anchoring mode is avoided; the safety risk increased due to the fact that the crane directly enters the building and is limited by the space is avoided, the adverse effect on the stability of the building due to point stress in the hoisting process is avoided, the hoisting construction of the main beam of the bridge crane and the auxiliary components does not cause any influence on civil construction in space, and parallel operation is achieved among all working procedures; and the process interval time is greatly shortened.

The invention discloses an inclined shaft feeding and discharging and single transverse channel combined highway tunnel ventilation system and method. According to the key point of the technical scheme, the inclined shaft feeding and discharging and single transverse channel combined highway tunnel ventilation system comprises a right-line tunnel, a left-line tunnel, a right-line ventilation inclined shaft and a left-line ventilation inclined shaft, and the right-line ventilation inclined shaft is opposite to the left-line ventilation inclined shaft. The right-line ventilation inclined shaft comprises a right-line inclined shaft fan room, a right-line main air duct, a right-line bottom connection air supply duct, a right-line bottom connection air exhaust duct and a right-line smoke exhaust duct, one end of the right-line main air duct communicates with the right-line inclined shaft fan room, and the other end of the right-line main air duct correspondingly communicates with the right-line bottom connection air supply duct, the right-line bottom connection air exhaust duct and the right-line smoke exhaust duct. The right-line bottom connection air supply duct and the right-line bottom connection air exhaust duct communicate with the right-line tunnel, the right-line smoke exhaust duct communicates with the left-line tunnel, the left-line ventilation inclined shaft is similar tothe right line ventilation inclined shaft, only one ventilation inclined shaft needs to be arranged in a right-line uphill tunnel, one vertical / inclined shaft, a related connection air duct, a fan room and a ventilation electromechanical facility are reduced, and the investment of vertical / inclined shafts and affiliated civil engineering and electromechanical engineering is reduced.

The invention discloses an insulated corridor type conveyer machine. The insulated corridor type conveyer machine is mainly composed of an insulated corridor, a conveyer, hydrothermal pipeline and lighting lamps. The cross section of the insulated corridor is in a reversed-U shape. The insulated corridor with the reversed-U-shaped cross section is placed onto the ground in a covering mode. The conveyer is arranged inside the reversed-U-shaped insulated corridor. The hydrothermal pipeline is arranged on the upper portion of a conveyer machine frame. A plurality of lighting lamps are arranged at the middle-upper portion of the conveyer machine frame. According to the conveyer machine, materials do not freeze at a low temperature, and thus patrolling, inspection and maintenance of workers are facilitated. Installation and maintenance are convenient and no environment pollution is produced. The conveyer machine is a suspension type conveyer machine, and thus the trouble of civil engineering is saved. At the same time, labor intensity of the workers is relieved and the installation speed of an adhesive tape holder, carrier rollers and a belt is high.

The present invention provides one kind of air-entraining air floating machine and one air-entraining air floating apparatus with the air-entraining air floating machine. The air-entraining air floating machine includes one frame, one submerged motor with one hollow shaft, one air dispersing vane wheel set in the lower end of the hollow shaft and with vanes and one inside cavity communicated to the hollow shaft, and one air pipe to introduce air from outside to the hollow shaft and the air dispersing vane wheel. The air-entraining air floating machine has simple structure, convenient operation, low maintenance cost, high reliability and high power transferring efficiency.

A three-dimensional storage device for glass magnesium boards, including a three-dimensional shelf assembly for storing glass magnesium boards, a guide assembly for adjusting the width to adapt to glass magnesium boards with different width specifications, and preventing the glass magnesium boards from rushing out of the shelves due to inertia after entering the three-dimensional shelves. Components, and the lifting platform components that make the storage device move up and down so that the glass magnesium board can be smoothly sent into the three-dimensional shelf. When the three-dimensional shelf is full of glass magnesium plates, the glass magnesium plate rolling three-dimensional storage device will roll all the plates to another free three-dimensional shelf at one time, so as to receive new glass magnesium plates. This invention realizes that after a three-dimensional shelf is filled with glass magnesium plates, all the glass magnesium plates can be quickly rolled to another free three-dimensional shelf, ensuring that the production line can run without stopping and improving the operating efficiency of the production line.

The invention discloses a tail-end denitrification process device for a biogas digester and a denitrification method of the tail-end denitrification process device, relates to the technical field of biogas digesters, and aims to solve the problems of high operating cost and low denitrification efficiency caused by high adaptability, high energy consumption, high resin consumption and difficulty in regeneration when an ion exchange method is used in the conventional denitrification process in use. A premixing pool is installed on one side of the biogas digester, a curing pool is arranged on one side of the premixing pool, aeration equipment is arranged at one end of the premixing pool, a PLC remote controller is installed at one end of the aeration equipment, a premixing pool discharge pipe is arranged on one side of the curing pool, and a pressure gauge is installed on the outer side of the biogas digester. A pressure gauge is arranged on the upper portion of the biogas digester, the pressure gauge is connected with the outer side of the biogas digester in a welded mode, a turning cover is arranged above the biogas digester, a pressing sensor is installed above the turning cover, and the pressing sensor and the upper portion of the turning cover are integrally formed.

The invention provides a three-dimensional storage and rapid exchange device for glass magnesium plates, which is characterized in that it includes a platform component, a plate lifting component, and a pushing component. There are 4 three-dimensional plates placed on the platform assembly, and the platform assembly can rotate around its own axis so that different three-dimensional plates can receive glass magnesium plates. The plate lifting component can make the glass magnesium plate placed on it rise to the height of a free plate storage unit of the three-dimensional plate rack. The push component and the push handle component cooperate to push the glass magnesium plate on the plate lifting component into the three-dimensional plate frame. The invention has the advantages of short replacement time for three-dimensional shelves, simple structure and convenient installation, and is suitable for use in glass magnesium board production lines.

A ladder tower flocculation reaction device comprises a stand tower structure, a vertical partitioning plate and a lower end trumpet-shaped expanding opening. A stand tower comprises oval step plates and pulling ribs. The trumpet-shaped expanding opening is formed in the lower end of the tower. 2-5 circles of circular or oval step table plates are horizontally arranged at the lower end of the tower from top to bottom with the sizes gradually reduced. The pulling ribs are used for connecting the table plates. A plurality of supporting partitioning plates are arranged in the vertical direction perpendicular to the ladder table plates. A cross-shaped turbulent flow partitioning plate is horizontally arranged in the middle of the tower. The step plates and the pulling ribs shaped like a Chinese character 'mi' are connected in a welding or bolt mode, and the supporting partitioning plates and the step plates are connected in a welding or bolt mode. Ladder tower flocculation equipment has the advantages of being good in corrosion resistance, high in intensity, attractive in appearance, convenient to mount, good in flocculation effect, low in head loss, short in flocculation time and the like. The ladder tower flocculation reaction device can generate high-frequency-spectrum vortex, flocculation particle contacting and colliding frequency is improved, and effective collision rate of particles in water is improved.

The invention relates to a constant-effluent variable-load SVBR sewage processing technology. The technology comprises the following steps: introducing sewage into an inflow and sludge reflux well, primarily processing the sewage by a grating, then mixing the sewage with reflux sludge, transporting the sewage to an anaerobic and primary sedimentation zone by a lifting pump, then processing the sewage in an AO biological processing area, further purifying the sewage and carrying out primary sludge-water separation in an anoxic and pre-sedimentation zone, finally carrying out final sludge-water separation in a secondary sedimentation and effluent zone, disinfecting the effluent by a tube-type ultraviolet disinfector, and discharging the disinfected effluent out of the system. Through the optimized combination of various functional zones and the circulating reflux design, the sewage processing technology allows the inflow rate and the water level and load in the reactor to change within a designed range, the effluent rate of the system always remains relatively constant and continuous, and the processing process is a continuous non-stable process. The sewage processing technology integrates the functions of lifting, modulating, primary settlement, biological degradation, secondary settlement, and sludge reflux in one tank, has the characteristics of little occupied area and equipment, and simpleness in operation and management, and is especially applicable to the sewage treatment in small towns.