Sewage treatment device

Abstract

The invention relates to a sewage treatment device which comprises a rack and a driving device, the rack is provided with an adjusting tank, a pretreatment tank, a biochemical treatment tank, a sedimentation tank and a disinfection tank, and a plurality of filter barrels with filter cavities are slidably connected in the adjusting tank around the side surface of the adjusting tank; a water inlet and a water outlet which are communicated with the filtering cavity and the outside are respectively formed in the filtering barrels, and the driving device is used for driving the plurality of filtering barrels to slide simultaneously. The plurality of filtering barrels are driven to slide by the driving device, so that the concentration of sewage in the adjusting tank is uniformly treated; when the filtering barrel slides to the position below the water surface, sewage in the adjusting tank enters the filtering barrel, air in the filtering barrel is discharged, the sewage is filtered through the water inlet, and the possibility that large sundries enter the filtering barrel is reduced; when the filter barrel slides to the position above the water surface, sewage in the filter barrel flows out of the water outlet into the adjacent pretreatment pool through water pressure and gravity, and the amount of water flowing into the pretreatment pool is kept quantitative.

Description

Technical Field

[0001] The invention relates to the field of sewage treatment devices, and in particular to a sewage treatment device. Background Art

[0002] A sewage treatment plant is a device or system used to treat sewage, removing or transforming harmful substances in sewage through physical, chemical and biological methods to make it meet discharge standards or reusable water quality requirements. The main goal of sewage treatment plants is to protect the environment, prevent sewage from polluting water resources, soil and atmosphere, and ensure human health and ecological balance.

[0003] In the prior art, sewage flows out from the top purified water outlet after a series of treatments from the water inlet. During this process, the sludge contained in the sewage is easily accumulated and blocked in various pipes of the device, thereby affecting the normal purification process of the sewage. Summary of the invention

[0004] In order to reduce sludge and purify sewage, the present application provides a sewage treatment device.

[0005] The sewage treatment device provided in this application adopts the following technical solution: A sewage treatment device comprises a frame and a driving device, wherein the frame is provided with a regulating tank for sewage stirring and impurity removal, a pretreatment tank for degrading sewage concentration, a biochemical treatment tank for degrading organic matter, a sedimentation tank for solid-liquid separation and a disinfection tank for removing pathogens, wherein a water inlet pipe is arranged in the regulating tank, and the pretreatment tank, the biochemical treatment tank, the sedimentation tank and the disinfection tank are sequentially connected by pipelines, wherein a plurality of filter barrels with filter cavities are slidably connected around the side of the regulating tank, and a water inlet and a water outlet connecting the filter cavity and the outside are respectively provided on the filter barrels, and the driving device is used to drive the plurality of filter barrels to slide simultaneously, and when the filter barrels rotate to the top of the regulating tank, the water outlets face the side of the pretreatment tank, and sewage flows from the filter barrels into the pretreatment tank.

[0006] By adopting the above technical scheme, the driving device drives the sliding of multiple filter barrels, so that the concentration of the sewage in the regulating tank becomes uniform; when the filter barrel slides below the water surface, the sewage in the regulating tank enters the filter barrel, the air in the filter barrel is discharged, and the water inlet filters the sewage, thereby reducing the possibility of large debris entering the filter barrel; when the filter barrel slides above the water surface, the sewage in the filter barrel flows out from the water outlet to the adjacent pretreatment tank through water pressure and gravity, and the amount of water flowing into the pretreatment tank is kept quantitative, thereby reducing the possibility of the water volume in the pretreatment tank increasing uncontrollably, and at the same time reducing the possibility of the water in the pretreatment tank suddenly becoming less and affecting the subsequent work links.

[0007] Preferably, a plurality of the filter barrels are respectively provided with scraper rods, and when the filter barrels slide to the bottom surface of the pretreatment tank, the scraper rods abut against the bottom surface of the pretreatment tank.

[0008] By adopting the above technical solution, when the filter barrel slides, the scraper rod scrapes the bottom surface of the regulating tank, reducing the possibility of sludge accumulation on the bottom surface of the regulating tank. A sludge tank is provided on one side of the regulating tank, and the side surface of the regulating tank close to the sludge tank is an inclined surface. When the scraper rod scrapes along the inclined surface of the regulating tank, the sludge can enter the sludge tank along the inclined surface.

[0009] Preferably, a reagent dispensing mechanism is provided on the pretreatment tank, and the reagent dispensing mechanism is used to dispense the de-solventizing agent into the pretreatment tank. The reagent dispensing mechanism includes a push rod and a baffle. A reagent trough is provided on the pretreatment tank, and a reagent bottle for storing the reagent is provided on the reagent trough. The push rod is slidably connected in the reagent trough, and a riding groove is provided on the push rod. The baffle is rotatably connected to the push rod. When the baffle rotates toward the groove side until it abuts against the push rod, the baffle covers the riding groove. The driving device is used to drive the sliding of the push rod. When the push rod is located in the reagent trough, the riding groove is opposite to the reagent bottle.

[0010] By adopting the above technical scheme, when the driving device drives the push rod to move to the extreme position on one side of the pretreatment tank, the baffle moves to the side away from the riding groove due to gravity, so that the denitrification agent in the riding groove falls into the pretreatment tank. At this time, the side of the push rod away from the riding groove abuts against the bottle mouth of the reagent bottle; when the push rod slides to the extreme position on one side of the reagent tank, the baffle rotates to abut against the push rod, covering the bottom end of the riding groove. At this time, the riding groove is opposite to the reagent bottle, and the denitrification agent in the reagent bottle can fall into the riding groove; the amount of denitrification agent entering the pretreatment tank each time is constant, which is convenient for the addition of denitrification agent.

[0011] Preferably, the driving device includes a first motor and a transmission chain, the transmission chain is connected to the regulating tank along a sliding trajectory of the filter barrel, and the multiple filter barrels are respectively fixedly connected to the transmission chain, the first motor is fixedly connected to the regulating tank, one end of the output shaft of the first motor is coaxially and fixedly connected with a first gear, the first gear is meshed with the transmission chain, a first abutment block is provided on the transmission chain, a second abutment block is provided on the push rod, the end of the second abutment block away from the push rod is penetrated by the pretreatment tank and is slidably connected to the regulating tank, the second abutment block is located on the moving path of the first abutment block, and a first spring is provided on the push rod, and the first spring always drives the push rod to slide toward the reagent tank.

[0012] By adopting the above technical solution, the first motor drives the first gear to rotate, and through the meshing connection between the first gear and the transmission chain, the transmission chain transmits the multiple filter barrels and the first abutment block fixedly connected to the transmission chain. When the first abutment block is transmitted to abut on the second abutment block, the first abutment block drives the second abutment block to move, so that the push rod moves toward one side of the pretreatment tank. The abutment surfaces of the first abutment block and the second abutment block are inclined surfaces. When the first abutment block moves to disengage from the second abutment block, the first spring drives the push rod to slide toward the reagent tank to return the push rod to its position; after the filter barrel drives a certain amount of sewage into the pretreatment tank, the push rod slides to allow a certain amount of denitrification agent to enter the pretreatment tank, and the sewage in the pretreatment tank is denitrified.

[0013] Preferably, the biochemical treatment tank comprises an anaerobic tank, an anoxic tank and an aerobic tank, the bottom ends of the anaerobic tank and the anoxic tank are rotatably connected to a plurality of stirring paddles, and the aerobic tank is provided with aerobic biological fillers.

[0014] By adopting the above technical solution, the stirring paddles in the anaerobic tank and the anoxic tank rotate, reducing the accumulation of sludge on the bottom wall of the anaerobic tank and the anoxic tank, and reducing the possibility of sludge blocking the pipe opening when sewage flows out from the bottom of the anaerobic tank and the anoxic tank.

[0015] Preferably, an overflow port is provided at the upper end of the sedimentation tank, a water inlet is opened in the middle section, and a plurality of mud storage hoppers are provided at the bottom end. A plurality of drainage pipes are provided at the water inlet of the sedimentation tank, and the plurality of drainage pipes span across the plurality of mud storage hoppers. A filter plate is provided above the water inlet of the sedimentation tank, and a plurality of filter holes are provided on the filter plate, and the plurality of filter holes are arranged at an incline.

[0016] By adopting the above technical solution, the water after biochemical treatment flows into the sedimentation tank from the middle section of the sedimentation tank height, and flows out from the overflow port at the upper end of the sedimentation tank. When the water containing suspended matter flows from bottom to top, the matter is precipitated into the conical mud storage hopper at the bottom by gravity, and flows into the disinfection tank from the overflow port at the upper end after being filtered by the sedimentation and filter plates. The sludge in the mud storage hopper is transported to the sludge tank by gas through the pipeline connected to the air source provided by the fan.

[0017] Preferably, it also includes a chlorine dioxide delivery mechanism, which includes an abutment plate, a rotating plate and a third driving member. A transmission path is provided on the disinfection pool, and the abutment plate is slidably connected to the disinfection pool. An abutment interface is provided on the abutment plate, and the rotating plate is rotatably connected to the transmission path. The rotating plate is located in the abutment interface, and the third driving member is used to drive the sliding of the abutment plate. When the abutment plate slides to the extreme position toward the side away from the bottom of the pool, the bottom surface of the abutment interface abuts against the rotating plate, so that the rotating plate is parallel to the transmission path. When the abutment plate slides to the extreme position toward the side of the bottom of the pool, the top surface of the abutment interface abuts against the transmission path.

[0018] By adopting the above technical solution, when the abutment plate slides to the extreme position toward the side away from the pool bottom, the bottom surface of the abutment interface abuts against the rotating plate, so that the rotating plate is parallel to the transmission path, and the chlorine dioxide tablets in the transmission path fall onto the rotating plate; when the abutment plate slides to the extreme position toward the side of the pool bottom, the top surface of the abutment interface abuts against the transmission path to intercept objects in the transmission path; at this time, the abutment interface does not limit the rotating plate, so that the rotating plate rotates toward the side of the disinfection pool, and the chlorine dioxide tablets on the rotating plate fall into the water, so that the water intake is proportional to the amount of chlorine dioxide added and enters the disinfection pool.

[0019] Preferably, the third driving member includes an impeller and a second spring, the impeller is rotatably connected to the water inlet of the disinfection tank, the impeller is provided with a third abutment block, the abutment plate is provided with a fourth abutment plate, the fourth abutment block is located on the moving path of the third abutment block, the second spring is provided on the abutment plate, and the second spring always drives the abutment plate to move toward the side away from the bottom of the disinfection tank.

[0020] By adopting the above technical solution, the disinfection tank and the chlorine dioxide delivery mechanism can continuously change the dosage according to the water output, so as to achieve the purpose of adding more medicine when there is more water output and adding less medicine when there is less water output.

[0021] The technical effects of the present invention are mainly reflected in the following aspects: 1. The present invention provides a plurality of filter barrels, and drives the sliding of the plurality of filter barrels through a driving device, so as to make the concentration of the sewage in the regulating tank uniform; when the filter barrel slides below the water surface, the sewage in the regulating tank enters the filter barrel, the air in the filter barrel is discharged, and the water inlet filters the sewage, thereby reducing the possibility of large debris entering the filter barrel; when the filter barrel slides above the water surface, the sewage in the filter barrel flows out from the water outlet to the adjacent pretreatment tank through water pressure and gravity, and the amount of water flowing into the pretreatment tank is kept quantitative, thereby reducing the possibility of the water amount in the pretreatment tank increasing uncontrollably, and at the same time reducing the possibility of the water in the pretreatment tank suddenly decreasing and affecting the subsequent work links; 2. The present invention sets a reagent delivery mechanism. When the driving device drives the push rod to move to the extreme position toward one side of the pretreatment tank, the baffle moves toward the side away from the slot due to gravity, so that the denitrification agent in the slot falls into the pretreatment tank. At this time, the side of the push rod away from the slot abuts against the bottle mouth of the reagent bottle; when the push rod slides to the extreme position toward one side of the reagent tank, the baffle rotates to abut against the push rod, covering the bottom end of the slot. At this time, the slot is opposite to the reagent bottle, and the denitrification agent in the reagent bottle can fall into the slot; so that the amount of denitrification agent entering the pretreatment tank each time is constant, which is convenient for adding the denitrification agent; 3. The present invention provides a chlorine dioxide delivery mechanism. When the abutment plate slides to the extreme position toward the side away from the pool bottom, the bottom surface of the abutment interface abuts against the rotating plate, so that the rotating plate is parallel to the transmission path, and the chlorine dioxide tablets in the transmission path fall onto the rotating plate. When the abutment plate slides to the extreme position toward the side of the pool bottom, the top surface of the abutment interface abuts against the transmission path to intercept objects in the transmission path. At this time, the abutment interface does not limit the rotating plate, so that the rotating plate rotates toward one side of the disinfection pool, and the chlorine dioxide tablets on the rotating plate fall into the water, so that the water intake is proportional to the amount of chlorine dioxide delivered and enters the disinfection pool. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0023] Figure 2 is along Figure 1 Enlarged view of point A in the middle.

[0024] Figure 3 It is a schematic diagram of the structure of the reagent delivery mechanism of the embodiment of the present application.

[0025] Figure 4 is along Figure 1 Enlarged view of point B in the middle.

[0026] Figure 5 It is a schematic diagram of the structure of the anaerobic tank in the embodiment of the present application.

[0027] Figure 6 It is a schematic diagram of the structure of the sedimentation tank in the embodiment of the present application.

[0028] Figure 7 It is a schematic diagram of the structure of the chlorine dioxide delivery mechanism in the embodiment of the present application.

[0029] Figure 8 is along Figure 1 Enlarged view of point C in the middle.

[0030] Description of the reference numerals: 1. frame; 11. driving device; 111. first motor; 112. transmission chain; 113. first gear; 114. first abutment block; 2. regulating tank; 21. filter barrel; 211. water inlet; 212. water outlet; 213. scraper; 3. pretreatment tank; 31. reagent delivery mechanism; 311. push rod; 3111. riding trough; 312. baffle; 313. reagent bottle; 32. reagent tank; 33. second abutment block; 34. first spring; 4. biochemical treatment tank; 41. anaerobic Pool; 42, anoxic pool; 43, aerobic pool; 44, stirring paddle; 45, second gear; 5, sedimentation tank; 51, overflow port; 52, water inlet; 53, mud storage hopper; 54, filter plate; 55, drainage pipe; 6, disinfection tank; 61, chlorine dioxide delivery mechanism; 611, abutment plate; 6111, abutment interface; 612, rotating plate; 613, third driving member; 6131, impeller; 6132, second spring; 6133, third abutment block; 6134, fourth abutment block; 62, transmission path; 7, sludge pool. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-8 The present application is further described in detail to make the technical solution of the present application easier to understand and grasp.

[0032] The embodiment of the present application discloses a sewage treatment device.

[0033] Reference Figure 1-Figure 6 A sewage treatment device of this embodiment includes a frame 1 and a driving device 11. The frame 1 is provided with a regulating tank 2 for sewage stirring and impurity removal, a pretreatment tank 3 for degrading sewage concentration, a biochemical treatment tank 4 for degrading organic matter, a sedimentation tank 5 for solid-liquid separation and a disinfection tank 6 for removing pathogens. A water inlet pipe is provided in the regulating tank 2, and the pretreatment tank 3, the biochemical treatment tank 4, the sedimentation tank 5 and the disinfection tank 6 are connected in sequence through pipelines.

[0034] Reference Figure 1-Figure 4 A plurality of filter barrels 21 with filter cavities are slidably connected around the side of the regulating tank 2 in the regulating tank 2. A water inlet 211 and a water outlet 212 connecting the filter cavity and the outside are respectively provided on the filter barrel 21. The water inlet 211 is located on the circumferential side of the filter barrel 21, and the water outlet 212 is located on the end surface of the filter barrel 21. A one-way valve is fixedly connected to the water inlet 211 and the water outlet 212, respectively. The driving device 11 is used to drive the plurality of filter barrels 21 to slide at the same time. When the filter barrel 21 rotates to the top of the regulating tank 2, the filter barrel 21 is at the water surface, and the water outlet 212 faces the side of the pretreatment tank 3, and the sewage flows from the filter barrel 21 into the pretreatment tank 3.

[0035] Reference Figure 1-Figure 4, the driving device 11 drives the sliding of multiple filter barrels 21 to make the concentration of the sewage in the regulating tank 2 uniform; when the filter barrel 21 slides below the water surface, the sewage in the regulating tank 2 enters the filter barrel 21, the air in the filter barrel 21 is discharged, and the water inlet 211 filters the sewage, reducing the possibility of large debris entering the filter barrel 21; when the filter barrel 21 slides above the water surface, the sewage in the filter barrel 21 flows out from the water outlet 212 to the adjacent pretreatment tank 3 through water pressure and gravity, and the amount of water flowing into the pretreatment tank 3 is kept quantitative, reducing the possibility of the water amount in the pretreatment tank 3 increasing uncontrollably, and at the same time reducing the possibility of the water in the pretreatment tank 3 suddenly becoming less and affecting the subsequent work links.

[0036] Reference Figure 1-Figure 4 A plurality of filter barrels 21 are respectively fixedly connected with scraper rods 213, which are adjacent to the water inlet 211 and located in front of the sliding direction of the water inlet 211. When the filter barrel 21 slides to the bottom surface of the pretreatment tank 3, the scraper rod 213 abuts against the bottom surface of the pretreatment tank 3. When the filter barrel 21 slides, the scraper rod 213 scrapes the bottom surface of the regulating tank 2 to reduce the possibility of sludge accumulation on the bottom surface of the regulating tank 2. A sludge pool is provided on one side of the regulating tank 2, and the side surface of the regulating tank 2 close to the sludge pool is an inclined surface. When the scraper rod 213 scrapes along the inclined surface of the regulating tank 2, the sludge can enter the sludge pool along the inclined surface.

[0037] Reference Figure 1-Figure 4 A reagent dispensing mechanism 31 is installed on the pretreatment tank 3. The reagent dispensing mechanism 31 is used to dispense the destocking agent into the pretreatment tank 3. The reagent dispensing mechanism 31 includes a push rod 311 and a baffle 312. The pretreatment tank 3 is fixedly connected with a reagent tank 32. A reagent bottle 313 for storing the reagent is fixedly connected to the reagent tank 32. The push rod 311 is slidably connected in the reagent tank 32. A riding groove 3111 is provided on the push rod 311. The baffle 312 is rotatably connected to the push rod 311. When the baffle 312 rotates toward the groove side until it abuts against the push rod 311, the baffle 312 covers the riding groove 3111. The driving device 11 is used to drive the sliding of the push rod 311. When the push rod 311 is located in the reagent tank 32, the riding groove 3111 is directly opposite to the reagent bottle 313.

[0038] Reference Figure 1-Figure 4When the driving device 11 drives the push rod 311 to move to the extreme position toward one side of the pretreatment tank 3, the baffle 312 moves toward the side away from the groove 3111 due to gravity, so that the denitrification agent in the groove 3111 falls into the pretreatment tank 3. At this time, the side of the push rod 311 away from the groove 3111 abuts against the bottle mouth of the reagent bottle 313; when the push rod 311 slides to the extreme position toward the side of the reagent groove 32, the baffle 312 rotates to abut against the push rod 311, covering the bottom end of the groove 3111. At this time, the groove 3111 is opposite to the reagent bottle 313, and the denitrification agent in the reagent bottle 313 can fall into the groove 3111; the amount of denitrification agent entering the pretreatment tank 3 each time is constant, which is convenient for the addition of the denitrification agent.

[0039] Reference Figure 1-Figure 4 The driving device 11 includes a first motor 111 and a transmission chain 112. The transmission chain 112 is connected to the regulating pool 2 along the sliding track of the filter barrel 21. A plurality of filter barrels 21 are respectively fixedly connected to the transmission chain 112. The first motor 111 is fixedly connected to the regulating pool 2. One end of the output shaft of the first motor 111 is coaxially and fixedly connected with a first gear 113. The first gear 113 is meshed with the transmission chain 112. A first abutment block 114 is fixedly connected to the transmission chain 112. A second abutment block 33 is fixedly connected to the push rod 311. One end of the second abutment block 33 away from the push rod 311 is penetrated by the pretreatment pool 3 and is slidably connected to the regulating pool 2. The second abutment block 33 is located on the moving path of the first abutment block 114. A first spring 34 is fixedly connected to the push rod 311. One end of the first spring 34 away from the push rod 311 abuts on the bottom surface of the reagent tank 32. The first spring 34 always drives the push rod 311 to slide into the reagent tank 32.

[0040] Reference Figure 1-Figure 4 The first motor 111 drives the first gear 113 to rotate, and through the meshing connection between the first gear 113 and the transmission chain 112, the transmission chain 112 transmits the multiple filter barrels 21 and the first abutment block 114 fixedly connected to the transmission chain 112. When the first abutment block 114 is transmitted to abut on the second abutment block 33, the first abutment block 114 drives the second abutment block 33 to move, so that the push rod 311 moves toward one side of the pretreatment tank 3. The abutment surface of the first abutment block 114 and the second abutment block 33 is an inclined surface. When the first abutment block 114 moves to disengage from the second abutment block 33, the first spring 34 drives the push rod 311 to slide into the reagent tank 32, so that the push rod 311 returns to its position; after the filter barrel 21 drives a certain amount of sewage to enter the pretreatment tank 3, the push rod 311 slides to allow a certain amount of denitrification agent to enter the pretreatment tank 3, and the sewage in the pretreatment tank 3 is denitrified.

[0041] Reference Figure 1 and Figure 5The biochemical treatment tank 4 includes an anaerobic tank 41, an anoxic tank 42, and an aerobic tank 43. The anaerobic tank 41, the anoxic tank 42, and the aerobic tank 43 are connected by pipelines. After the sewage flows out of the pretreatment tank 3, it flows into the anaerobic tank 41 from the upper end of the anaerobic tank 41 and flows out of the anaerobic tank 41 from the lower end. After that, it flows into the anoxic tank 42 from the upper end of the anoxic tank 42 and flows out of the anoxic tank 42 from the lower end, and flows into the aerobic tank 43 from the upper end of the aerobic tank 43, and flows out of the aerobic tank 43 from the lower end. The bottom ends of the anaerobic tank 41 and the anoxic tank 42 are respectively connected with a plurality of stirring paddles 44 for rotation. 4. A plurality of stirring paddles 44 are coaxially and fixedly connected to a second gear 45, and the plurality of second gears 45 are meshed and connected with each other. The bottom ends of the anaerobic tank 41 and the anoxic tank 42 are respectively fixedly connected to second motors. One end of the output shafts of the two second motors is coaxially and fixedly connected to any second gear 45 to drive the stirring paddles 44 in the anaerobic tank 41 and the anoxic tank 42 to rotate, thereby reducing the accumulation of sludge on the bottom wall of the anaerobic tank 41 and the anoxic tank 42, and reducing the possibility of sludge blocking the pipe opening when sewage flows out from the bottom ends of the anaerobic tank 41 and the anoxic tank 42.

[0042] Reference Figure 1 and Figure 5 Aerobic biological fillers are placed in the aerobic pool 43, and the effluent from the hydrolysis acidification pool is mainly used to flow to the contact oxidation pool for biochemical treatment. Most of the organic matter in the original sewage is degraded and purified here. Aerobic bacteria use the fillers as carriers and the organic matter in the sewage as food to decompose the organic matter in the sewage into inorganic salts, thereby achieving the purpose of purification. For aerobic bacteria to survive, there must be enough oxygen, that is, there is enough dissolved oxygen in the sewage to achieve the purpose of biochemical treatment. The air in the aerobic pool 43 is provided by a fan, aerobic biological fillers are used in the pool, and a rotary mixing aerator is used at the bottom of the pool to make the transfer rate of dissolved oxygen high. At the same time, it has the advantages of light weight, no aging, not easy to clog, and long service life.

[0043] Reference Figure 1 and Figure 6 An overflow port 51 is provided at the upper end of the sedimentation tank 5, a water inlet 52 is provided in the middle section, a plurality of mud storage buckets 53 are fixedly connected to the bottom end, and the plurality of mud storage buckets 53 are respectively connected to the sludge tank through pipelines, a plurality of drainage pipes 55 are fixedly connected to the water inlet 52 of the sedimentation tank 5, and the plurality of drainage pipes 55 span the plurality of mud storage buckets 53, so that the sewage flows evenly from the water inlet 52 to the sedimentation tank 5 through the drainage pipes 55, and a filter plate 54 is fixedly connected above the water inlet 52 of the sedimentation tank 5, and a plurality of filter holes are provided on the filter plate 54, and the plurality of filter holes are arranged obliquely.

[0044] Reference Figure 1 and Figure 6The water after biochemical treatment flows into the sedimentation tank 5 from the middle section of the height of the sedimentation tank 5, and flows out from the overflow port 51 at the upper end of the sedimentation tank 5. When the water containing suspended matter flows from bottom to top, the matter is precipitated into the conical mud storage hopper 53 at the bottom by gravity, and flows into the disinfection tank 6 from the overflow port 51 at the upper end after being filtered by the sedimentation and filter plate 54. The sludge in the mud storage hopper 53 is transported to the sludge tank by gas through a pipeline connected to the air source provided by the fan. The residual sludge discharged from the sedimentation tank 5 and the sludge scraped from the regulating tank 2 are aerobic digested and stabilized in the sludge tank to reduce the volume of the sludge and improve the stability of the sludge. The amount of sludge after aerobic digestion is small. When cleaning, a fecal suction truck can be used to extend from the inspection hole of the sludge tank to the bottom of the sludge tank for suction and then transported out.

[0045] Reference Figure 1 , Figure 7 and Figure 8 , also includes a chlorine dioxide delivery mechanism 61, the chlorine dioxide delivery mechanism 61 includes a contact plate 611, a rotating plate 612 and a third driving member 613, a transmission path 62 is fixedly connected to the disinfection pool 6, the contact plate 611 is slidably connected to the disinfection pool 6, a contact interface 6111 is provided on the contact plate 611, the rotating plate 612 is rotatably connected to the transmission path 62, the rotating plate 612 is located in the contact interface 6111, and the third driving member 613 is used to drive the sliding of the contact plate 611, when the contact plate 611 slides to the side away from the bottom of the pool to the extreme position, the bottom surface of the contact interface 6111 abuts on the rotating plate 612, so that the rotating plate 612 is parallel to the transmission path 62, when the contact plate 611 slides to the extreme position toward the side of the bottom of the pool, the top surface of the contact interface 6111 abuts on the transmission path 62. The third driving member 613 includes an impeller 6131 and a second spring 6132. The impeller 6131 is rotatably connected to the water inlet 52 of the disinfection tank 6. A third abutment block 6133 is fixedly connected to the impeller 6131. ​​A fourth abutment block 6134 is fixedly connected to the abutment plate 611. The fourth abutment block 6134 is located on the moving path of the third abutment block 6133. One end of the second spring 6132 is fixedly connected to the abutment plate 611. One end of the second spring 6132 away from the abutment plate 611 is fixedly connected to the disinfection tank 6. The second spring 6132 always drives the abutment plate 611 to move toward the side away from the bottom of the disinfection tank 6.

[0046] Reference Figure 1 , Figure 7 and Figure 8The water flowing out of the sedimentation tank 5 enters the disinfection tank 6 from the water inlet 52 of the disinfection tank 6. When the water flows through the disinfection tank 6, the water flow drives the impeller 6131 to rotate, thereby driving the third abutment block 6133 fixedly connected to the impeller 6131 to rotate. When the first abutment block rotates to abut on the fourth abutment block 6134, it pushes the fourth abutment block 6134 and the abutment plate 611 to slide. When the abutment plate 611 slides to the extreme position toward the side away from the bottom of the pool, the bottom surface of the abutment port 6111 abuts against the rotating plate 612, so that the rotating plate 612 is parallel to the transmission channel 62, and the chlorine dioxide tablets in the transmission channel 62 fall onto the rotating plate 612. When the abutment plate 611 slides to the extreme position toward the side of the bottom of the pool, the top surface of the abutment port 6111 abuts against the transmission channel 62 to intercept objects in the transmission channel 62. At this time, the abutment port 6111 does not limit the rotating plate 612, so that the rotating plate 612 rotates toward the side of the disinfection pool 6, and the chlorine dioxide tablets on the rotating plate 612 fall into the water. The disinfection pool 6 and the chlorine dioxide delivery mechanism 61 can continuously change the dosage according to the amount of water output, so as to achieve the purpose of more dosage when more water output is produced and less dosage when less water output is produced.

[0047] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. A sewage treatment device, characterized in that: The invention comprises a frame (1) and a driving device (11), wherein the frame (1) is provided with a regulating tank (2) for sewage agitation and impurity removal, a pretreatment tank (3) for degrading sewage concentration, a biochemical treatment tank (4) for degrading organic matter, a sedimentation tank (5) for solid-liquid separation, and a disinfection tank (6) for removing pathogens, wherein a water inlet pipe is provided in the regulating tank (2), the pretreatment tank (3), the biochemical treatment tank (4), the sedimentation tank (5) and the disinfection tank (6) are connected in sequence through pipelines, and the regulating tank (2) is provided with a water inlet pipe. (2) A plurality of filter barrels (21) with filter cavities are slidably connected around the side of the regulating tank (2), and the filter barrels (21) are respectively provided with water inlets (211) and water outlets (212) for connecting the filter cavities with the outside. The driving device (11) is used to drive the plurality of filter barrels (21) to slide simultaneously. When the filter barrels (21) rotate to the top of the regulating tank (2), the water outlets (212) face the side of the pretreatment tank (3), and sewage flows from the filter barrels (21) into the pretreatment tank (3).

2. A sewage treatment device according to claim 1, characterized in that: A scraper rod (213) is respectively provided on each of the plurality of filter barrels (21). When the filter barrel (21) slides to the bottom surface of the pretreatment tank (3), the scraper rod (213) abuts against the bottom surface of the pretreatment tank (3).

3. A sewage treatment device according to claim 1, characterized in that: The pretreatment pool (3) is provided with a reagent delivery mechanism (31), and the reagent delivery mechanism (31) is used to deliver the desalination agent into the pretreatment pool (3). The reagent delivery mechanism (31) comprises a push rod (311) and a baffle (312). The pretreatment pool (3) is provided with a reagent tank (32), and the reagent tank (32) is provided with a reagent bottle (313) for storing the reagent. The push rod (311) is slidably connected in the reagent tank (32). A reagent tank (11) is provided with a groove (3111), the baffle (312) is rotatably connected to the push rod (311), when the baffle (312) is rotated toward the groove forming side until it abuts against the push rod (311), the baffle (312) covers the groove (3111), the driving device (11) is used to drive the push rod (311) to slide, when the push rod (311) is located in the reagent tank (32), the groove (3111) is opposite to the reagent bottle (313).

4. A sewage treatment device according to claim 3, characterized in that: The driving device (11) comprises a first motor (111) and a transmission chain (112); the transmission chain (112) is connected to the regulating tank (2) along a sliding track of the filter barrel (21); a plurality of the filter barrels (21) are respectively fixedly connected to the transmission chain (112); the first motor (111) is fixedly connected to the regulating tank (2); one end of the output shaft of the first motor (111) is coaxially and fixedly connected to a first gear (113); the first gear (113) is meshedly connected to the transmission chain (112); The transmission chain (112) is provided with a first abutment block (114), the push rod (311) is provided with a second abutment block (33), one end of the second abutment block (33) away from the push rod (311) is penetrated by the pretreatment tank (3) and is slidably connected to the regulating tank (2), the second abutment block (33) is located on the moving path of the first abutment block (114), the push rod (311) is provided with a first spring (34), and the first spring (34) always drives the push rod (311) to slide into the reagent tank (32).

5. A sewage treatment device according to claim 1, characterized in that: The biochemical treatment pool (4) comprises an anaerobic pool (41), an anoxic pool (42), and an aerobic pool (43). The bottom ends of the anaerobic pool (41) and the anoxic pool (42) are rotatably connected to a plurality of stirring paddles (44), and the aerobic pool (43) is provided with aerobic biological fillers.

6. A sewage treatment device according to claim 1, characterized in that: The sedimentation tank (5) is provided with an overflow port (51) at the upper end, a water inlet (52) at the middle section, and a plurality of mud storage hoppers (53) at the bottom end. The sedimentation tank (5) is provided with a plurality of drainage pipes (55) at the water inlet (52). The plurality of drainage pipes (55) span across the plurality of mud storage hoppers (53). A filter plate (54) is provided above the water inlet (52) of the sedimentation tank (5). The filter plate (54) is provided with a plurality of filter holes. The plurality of filter holes are arranged obliquely.

7. A sewage treatment device according to claim 6, characterized in that: The device also comprises a chlorine dioxide delivery mechanism (61), the chlorine dioxide delivery mechanism (61) comprising an abutment plate (611), a rotating plate (612) and a third driving member (613); a transmission path (62) is provided on the disinfection pool (6); the abutment plate (611) is slidably connected to the disinfection pool (6); an abutment port (6111) is provided on the abutment plate (611); the rotating plate (612) is rotatably connected to the transmission path (62); and the rotating plate (612) is Located in the abutment interface (6111), the third driving member (613) is used to drive the sliding of the abutment plate (611). When the abutment plate (611) slides to the extreme position toward the side away from the pool bottom, the bottom surface of the abutment interface (6111) abuts against the rotating plate (612), so that the rotating plate (612) is parallel to the transmission path (62). When the abutment plate (611) slides to the extreme position toward the side of the pool bottom, the top surface of the abutment interface (6111) abuts against the transmission path (62).

8. A sewage treatment device according to claim 7, characterized in that: The third driving member (613) comprises an impeller (6131) and a second spring (6132); the impeller (6131) is rotatably connected to the water inlet (52) of the disinfection tank (6); a third abutment block (6133) is provided on the impeller (6131); a fourth abutment block (6134) is provided on the abutment plate (611); the fourth abutment block (6134) is located on the moving path of the third abutment block (6133); the second spring (6132) is provided on the abutment plate (611); the second spring (6132) always drives the abutment plate (611) to move toward a side away from the bottom of the disinfection tank (6).

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