CN108975557B - Sewage treatment equipment - Google Patents
Sewage treatment equipment Download PDFInfo
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- CN108975557B CN108975557B CN201810926947.3A CN201810926947A CN108975557B CN 108975557 B CN108975557 B CN 108975557B CN 201810926947 A CN201810926947 A CN 201810926947A CN 108975557 B CN108975557 B CN 108975557B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/42—Liquid level
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crushing And Pulverization Processes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses sewage treatment equipment which is characterized by comprising a crushing mechanism and a filtering mechanism, wherein the crushing mechanism comprises an inlet pipe, a crushing cylinder, a screw feeder, crushing blades, a motor, a duplicate gear, a first gear, a second gear and a sleeve, and the filtering mechanism comprises a primary filtering tank, a neutralization tank, a secondary filtering tank and an external discharge tank. The sewage treatment equipment can be used for preliminarily crushing and collecting the urban sewage, so that the condition that a pipeline is blocked by large-volume pollutants is avoided, and the sewage can be treated by the multistage filtering mechanism to reach the standard of standard discharge.
Description
Technical Field
The invention relates to a sewage treatment device.
Background
Sewage treatment equipment is one kind can effective treatment domestic sewage, industrial waste water's processing is made, can avoid sewage and pollutant direct inflow river waters, cause the pollution harm to the environment, present urban sewage is mostly centralized processing, collect domestic sewage and industrial waste water through sewage pipes in a centralized way, and handle sewage through sewage treatment equipment, but because in the sewage of concentrated discharge collection, can mix bulky pollutant because of the artificial reason, make when circulating in sewage treatment equipment through sewage pipes, cause the condition of jam to sewage treatment equipment easily, make and need artifically maintain sewage treatment equipment to repair, and reduced the work efficiency of equipment.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the sewage treatment equipment which can efficiently treat pollutants, reduce the maintenance frequency and improve the working efficiency of the equipment.
In order to achieve the purpose, the invention provides the following technical scheme: a sewage treatment device comprises a crushing mechanism and a filtering mechanism, wherein the crushing mechanism comprises an inlet pipe, a crushing barrel, an auger, crushing blades, a motor, a duplicate gear, a first gear, a second gear and a sleeve, the crushing barrel is a barrel with an upper end open and a lower end sealed, one end of the inlet pipe is communicated with an external blow-off pipe, the other end of the inlet pipe is communicated with the upper end open of the crushing barrel, a through hole is formed in the center of the lower end face of the crushing barrel, the sleeve is rotatably installed in the through hole, the center of the crushing blades is fixedly connected with one end of the sleeve positioned in the crushing barrel, holes are formed in the crushing blades, the holes in the crushing blades are matched with the inner hole of the sleeve, the auger is rotatably installed in the crushing barrel and positioned at the upper end of the crushing blades, and a rotating shaft of the auger sequentially penetrates through the holes of the crushing blades and the inner hole of the sleeve and, the first gear is connected with one end, located outside the crushing barrel, of the sleeve, the second gear is connected with one end, located outside the crushing barrel, of the rotating shaft of the auger, the first gear is smaller than the second gear, the large gear of the duplicate gear is meshed with the first gear in a matching mode, the small gear of the duplicate gear is meshed with the second gear in a matching mode, the motor is installed outside the lower end of the crushing barrel, the rotating shaft of the motor is fixedly connected with the duplicate gear, a sewage discharge port is formed in the side wall of the crushing barrel, and the sewage discharge port is located close to the crushing blades;
the filtering mechanism comprises a primary filtering tank, a neutralization tank, a secondary filtering tank and an outer discharging tank, wherein a sewage discharge port is communicated with the inlet of the primary filtering tank, the outlet of the primary filtering tank is communicated with the inlet of the neutralization tank, the outlet of the neutralization tank is communicated with the inlet of the secondary filtering tank, the outlet of the secondary filtering tank is communicated with the inlet of the outer discharging tank, and the outlet of the outer discharging tank is communicated with an external drainage pipeline.
By adopting the technical scheme, urban sewage is introduced into the crushing barrel through the inlet pipe, the motor drives the auger and the crushing blades to rotate through the gear, so that the sewage and pollutants are downward in the crushing barrel through the rotating action of the auger and contact the crushing blades, the crushing blades crush the pollutants, the pollutants are smaller than the second gear through the first gear, the large gear of the duplicate gear is matched with the first gear, and the small gear is matched with the second gear, so that the rotating action of the motor can enable the rotating speed of the crushing blades to be always larger than the rotating speed of the auger, the crushing effect of the crushing blades on the pollutants is improved, then the sewage and the crushed pollutants enter the primary filter tank through the sewage discharge outlet, the crushed pollutants are concentrated in the primary filter tank after primary filtration, and the sewage after primary filtration enters the neutralizing tank to be subjected to acid-base neutralization treatment, and discharging the treated water into a secondary filtering tank, and performing secondary filtering operation to obtain a standard discharged water source, wherein the standard discharged water source enters the discharge tank and is discharged into a city drainage pipeline.
The invention is further configured to: the primary filter tank comprises a first tank body, a filter screen box, a first water suction pump, a position detector and an alarm, the filter screen box is arranged in the first tank body, a sewage discharge port is communicated with the interior of the filter screen box through a pipeline, the inlet end of the first water suction pump 13 is connected with the bottom of the first tank body 11 through a pipeline, the position detector is installed at the top of the filter screen box and used for detecting the collection amount of filter materials in the filter screen box, and the control end of the alarm is electrically connected with the signal output end of the position detector.
Through adopting above-mentioned technical scheme, sewage and the pollutant after smashing pass through the pipeline and get into the filter screen case, and in the filtration entering first pond of filter screen case was led to sewage, the pollutant was concentrated in the filter screen incasement, filters the back for a long time, and the pollutant reached the top in the filter screen case and triggers position detector for position detector control siren alarm work makes things convenient for the staff to carry out the pollutant in the filter screen case and destroys the processing.
The invention is further configured to: the neutralization pond includes second cell body, second suction pump, water level detector and acid-base neutralization apparatus, water level detector installs on the inside wall upper portion of second cell body, the control end of the first suction pump of water level detector's signal output part electric connection, the delivery port of first suction pump communicates through the pipeline in the second cell body, acid-base neutralization apparatus installs in the second cell body, the entrance point of second suction pump passes through the bottom that the pipe connection is located the second cell body, the acid-base detector signal output part of acid-base neutralization apparatus connects the control end of second suction pump.
Through adopting above-mentioned technical scheme, detect that sewage is empty in the second cell body through water level detector, water level detector control first suction pump with sewage pump in the first cell body to the second cell body, after the water level reaches the default in the second cell body, water level detection device control first suction pump stops the pump pumping, then carry out acid-base detection through acid-base neutralization apparatus to sewage in the second cell, and carry out acid-base neutralization treatment to sewage, after sewage in the second cell body reaches the neutralization value, acid-base detector among the acid-base neutralization apparatus control second suction pump with the neutralization sewage pump in the second cell body to the third cell body, after the sewage complete pump pumping in the second cell body, water level detector continues control first suction pump work, make the circulation reciprocal.
The invention is further configured to: the secondary filter tank comprises a third tank body and a sludge hopper, a water outlet of the second water suction pump is communicated to an upper end inlet of the sludge hopper through a pipeline, the sludge hopper is installed in the third tank body, a water outlet is formed in the side wall of the upper portion of the third tank body, and a blow-down valve is arranged at the bottom of the third tank body.
Through adopting above-mentioned technical scheme, the sewage after the neutralization carries out mud and water separation operation through the effect of sludge bucket, and mud deposits in the bottom of third cell body through the lower part of sludge bucket, and clear water discharges into outer arranging the pond through the upper portion of third cell body, and mud passes through the blowoff valve simultaneously and discharges the third cell body.
The invention is further configured to: the outer drainage pool comprises a fourth pool body, a water inlet is arranged below the side wall of the fourth pool body, the water outlet is communicated with the water inlet through a pipeline, an outer drainage port is arranged above the side wall of the fourth pool body, and the outer drainage port is communicated with an external drainage pipeline.
By adopting the technical scheme, after the clear water in the third tank body is discharged into the fourth tank body through the bottom inlet of the fourth tank body and enters the sedimentation of the fourth tank body, the clear water is discharged out of the fourth tank body to the external drainage pipeline.
The invention is further configured to: and mechanical sealing elements are arranged between the sleeve and the through hole as well as between the rotating shaft of the auger and the inner hole of the sleeve.
Through adopting above-mentioned technical scheme, the sleeve pipe rotates in the through-hole, and the pivot of screw feeder rotates in sheathed tube hole, through mechanical seal's effect, can avoid the condition that leaks to appear in the bottom of crushing barrel.
The invention is further configured to: the crushing blades are made of high manganese steel.
Through adopting above-mentioned technical scheme, through smashing the blade by making of high manganese steel, can improve the wearability of smashing the blade, improve life.
The invention is further configured to: the upper end opening part of crushing barrel is provided with flow detector, flow detector's signal output part and the control end electric connection of motor.
Through adopting above-mentioned technical scheme, monitor the sewage flow that gets into in the crushing barrel through flow detector, can control the rotation of motor for the rotation rate of control screw feeder and crushing blade improves screw feeder conveying efficiency and crushing efficiency of crushing blade to the pollutant.
The invention is further configured to: the first tank body and the second tank body are both internally provided with glass fiber reinforced plastic anticorrosive treatment.
Through adopting above-mentioned technical scheme, carry out glass steel anticorrosive treatment through the inner wall to first cell body and second cell body, can avoid polluting the water source and cause the corrosion damage to the inner wall of first cell body and second cell body, can improve the life of first cell body and second cell body, reduce and maintain the frequency.
The invention is further configured to: the side wall and the bottom of the filter net cage are densely provided with filter meshes.
Through adopting above-mentioned technical scheme, the filter screen hole that leads to filter box bottom can carry out filtration treatment to the pollutant, and can filter sewage from filter box bottom, and the pollutant in filter box accumulates to a certain amount back simultaneously, leads to filter box's lateral wall filter screen hole and can make sewage discharge from filter box's lateral wall, has avoided causing the condition of sewage accumulation in filter box when pollutant blocks up filter box bottom.
The invention has the following advantages: the sewage treatment equipment can be used for preliminarily crushing and collecting the urban sewage, so that the condition that a pipeline is blocked by large-volume pollutants is avoided, and the sewage can be treated by the multistage filtering mechanism to reach the standard of standard discharge;
through the arrangement of the crushing mechanism, large-volume pollutants remained in the municipal sewage can be crushed, so that the pollutants are subjected to primary crushing operation, and the condition that the treatment equipment is damaged or needs to be maintained due to the blockage of the treatment equipment by the pollutants during the sewage treatment operation is avoided;
through the setting of filtering mechanism, can collect the pollutant after smashing, and can carry out neutralization reaction to the sewage after filtering and handle to through multistage operation such as sediment filtration, make the processing to sewage reach the standard that can arrange outward, make the treatment effect who improves sewage, reduced the outer pollution condition to the environment of sewage.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of a comminution structure according to the invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a schematic structural view of the primary filtration tank of the present invention;
FIG. 5 is a schematic diagram of the neutralization tank of the present invention;
FIG. 6 is a schematic structural view of a secondary filtration tank of the present invention;
FIG. 7 is a schematic diagram of the structure of an efflux pool of the present invention.
In the figure: 1. an inlet pipe; 2. a milling drum; 3. a screw conveyor; 4. crushing the leaves; 5. a motor; 6. a duplicate gear; 7. a first gear; 8. a second gear; 9. a sleeve; 10. a sewage draining outlet; 11. a first tank body; 12. a filter screen box; 13. a first water pump; 14. a position detector; 15. an alarm; 16. a second tank body; 17. a second water pump; 18. a water level detector; 19. an acid-base neutralization device; 20. a third tank body; 21. a sludge hopper; 22. a fourth tank body; 23. a flow detector.
Detailed Description
Referring to fig. 1-7, the sewage treatment device of the embodiment comprises a crushing mechanism and a filtering mechanism, wherein the crushing mechanism comprises an inlet pipe 1, a crushing barrel 2, an auger 3, crushing blades 4, a motor 5, a duplicate gear 6, a first gear 7, a second gear 8 and a sleeve 9, the crushing barrel 2 is a barrel with an upper end open and a lower end sealed, one end of the inlet pipe 1 is communicated with an external sewage discharge pipe, the other end of the inlet pipe 1 is communicated with the upper end open of the crushing barrel 2, a through hole is arranged at the center of the lower end face of the crushing barrel 2, the sleeve 9 is rotatably installed in the through hole, the center of the crushing blades 4 is fixedly connected with one end of the sleeve 9 in the crushing barrel 2, holes are arranged on the crushing blades 4, the holes on the crushing blades 4 are matched with the inner holes of the sleeve 9, the auger 3 is rotatably installed in the crushing barrel 2, the auger 3 is positioned at the upper end of the crushing blade 4, the rotating shaft of the auger 3 sequentially penetrates through the hole of the crushing blade 4 and the inner hole of the sleeve 9 and then is positioned outside the lower end of the crushing barrel 2, the first gear 7 is connected with one end of the sleeve 9 positioned outside the crushing barrel 2, the second gear 8 is connected with one end of the rotating shaft of the auger 3 positioned outside the crushing barrel 2, the first gear 7 is smaller than the second gear 8, the large gear of the duplicate gear 6 is in matched meshing with the first gear 7, the small gear of the duplicate gear 6 is in matched meshing with the second gear 8, the motor 5 is arranged outside the lower end of the crushing barrel 2, the rotating shaft of the motor 5 is fixedly connected with the duplicate gear 6, the side wall of the crushing barrel 2 is provided with a sewage discharge outlet 10, and the sewage discharge outlet 10 is positioned close to the crushing blade 4;
the filtering mechanism comprises a primary filtering tank, a neutralization tank, a secondary filtering tank and an outer discharging tank, wherein a sewage discharge port 10 is communicated with an inlet of the primary filtering tank, an outlet of the primary filtering tank is communicated with an inlet of the neutralization tank, an outlet of the neutralization tank is communicated with an inlet of the secondary filtering tank, an outlet of the secondary filtering tank is communicated with an inlet of the outer discharging tank, and an outlet of the outer discharging tank is communicated with an external drainage pipeline.
The primary filter tank comprises a first tank body 11, a filter screen box 12, a first water pump 13, a position detector 14 and an alarm 15, the filter screen box 12 is arranged in the first tank body 11, the sewage discharge port 10 is communicated with the inside of the filter screen box 12 through a pipeline, the inlet end of the first water pump 13 is connected with the bottom of the first tank body 11 through a pipeline, the position detector 14 is installed at the top of the filter screen box 12 and used for detecting the amount of collected filtered matters in the filter screen box 12, and the control end of the alarm 15 is electrically connected with the signal output end of the position detector 14.
The neutralization tank comprises a second tank body 16, a second water pump 17, a water level detector 18 and an acid-base neutralization device 19 (the acid-base neutralization device comprises a sulfuric acid dosing system, a ferrous sulfate dosing system, a hydrogen peroxide dosing system, a liquid-base dosing system, a PAM dosing system and a pH control system), the water level detector 18 is installed on the upper portion of the inner side wall of the second tank body 16, the signal output end of the water level detector 18 is electrically connected with the control end of the first water pump 13, the water outlet of the first water pump 13 is communicated into the second tank body 16 through a pipeline, the acid-base neutralization device 19 is arranged in the second tank body 16, the inlet end of the second water pump 17 is connected with the bottom of the second tank body 16 through a pipeline, and the signal output end of an acid-base detector (the acid-base detector has an acid-base detection function in a pH control system) of the acid-base neutralization device 19 is connected with the control end of the second water pump 17.
The secondary filter tank comprises a third tank body 20 and a sludge hopper 21, a water outlet of the second water pump 17 is communicated to an upper end inlet of the sludge hopper 21 through a pipeline, the sludge hopper 21 is installed in the third tank body 20, a water outlet is formed in the side wall of the upper portion of the third tank body 20, and a blow-down valve is arranged at the bottom of the third tank body 20.
The outer drainage pool comprises a fourth pool body 22, a water inlet is arranged below the side wall of the fourth pool body 22, the water outlet is communicated with the water inlet through a pipeline, an outer drainage port is arranged above the side wall of the fourth pool body 22, and the outer drainage port is communicated with an external drainage pipeline.
And mechanical sealing elements are arranged between the sleeve 9 and the through hole as well as between the rotating shaft of the auger 3 and the inner hole of the sleeve 9.
The crushing blades 4 are made of high manganese steel.
The upper end opening part of crushing barrel 2 is provided with flow detector 23, the signal output part of flow detector 23 and the control end electric connection of motor 5.
The first tank body 11 and the second tank body 16 are both internally provided with glass fiber reinforced plastic anticorrosive treatment.
The side wall and the bottom of the filter net cage 12 are densely provided with filter net holes.
By adopting the technical scheme, municipal sewage is introduced into the crushing barrel 2 through the inlet pipe 1, the motor 5 drives the screw feeder 3 and the crushing blades 4 to rotate through the gear, so that the sewage and pollutants are acted in the crushing barrel 2 by the rotation of the screw feeder 3 and are contacted with the crushing blades 4, the crushing blades 4 crush the pollutants, the rotation speed of the crushing blades 4 can be always greater than that of the screw feeder 3 by the rotation speed of the first gear 7 being smaller than that of the second gear 8 and the gear wheel of the duplicate gear 6 being matched with the first gear 7 and the pinion being matched with the second gear 8, so that the rotation speed of the motor 5 is always greater than that of the screw feeder 3, the crushing effect of the crushing blades 4 on the pollutants is improved, then the sewage and the crushed pollutants enter the primary filtering tank through the sewage discharge outlet 10, the crushed pollutants are concentrated in the primary filtering tank after primary filtering, the sewage after primary filtering enters the neutralization tank to be subjected to acid-base neutralization treatment, and discharging the treated water into a secondary filtering tank, and performing secondary filtering operation to obtain a standard discharged water source, wherein the standard discharged water source enters the discharge tank and is discharged into a city drainage pipeline.
The sewage treatment equipment can be used for preliminarily crushing and collecting the urban sewage, so that the condition that a pipeline is blocked by large-volume pollutants is avoided, and the sewage can be treated by the multistage filtering mechanism to reach the standard of standard discharge;
through the arrangement of the crushing mechanism, large-volume pollutants remained in the municipal sewage can be crushed, so that the pollutants are subjected to primary crushing operation, and the condition that the treatment equipment is damaged or needs to be maintained due to the blockage of the treatment equipment by the pollutants during the sewage treatment operation is avoided;
through the setting of filtering mechanism, can collect the pollutant after smashing, and can carry out neutralization reaction to the sewage after filtering and handle to through multistage operation such as sediment filtration, make the processing to sewage reach the standard that can arrange outward, make the treatment effect who improves sewage, reduced the outer pollution condition to the environment of sewage.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. A sewage treatment device is characterized in that: comprises a crushing mechanism and a filtering mechanism, wherein the crushing mechanism comprises an inlet pipe, a crushing barrel, an auger, crushing blades, a motor, a duplicate gear, a first gear, a second gear and a sleeve pipe, the crushing barrel is a barrel body with an upper end open and a lower end sealed, one end of the inlet pipe is communicated with an external blow-off pipe, the other end of the inlet pipe is communicated with the upper end open of the crushing barrel, a through hole is arranged at the center of the lower end surface of the crushing barrel, the sleeve pipe is rotatably arranged in the through hole, the center of the crushing blades is fixedly connected with one end of the sleeve pipe positioned in the crushing barrel, holes are arranged on the crushing blades, the holes on the crushing blades are matched with the inner holes of the sleeve pipe, the auger is rotatably arranged in the crushing barrel and positioned at the upper end of the crushing blades, and a rotating shaft of the auger sequentially penetrates through the holes of the crushing blades and, the first gear is connected with one end, located outside the crushing barrel, of the sleeve, the second gear is connected with one end, located outside the crushing barrel, of the rotating shaft of the auger, the first gear is smaller than the second gear, the large gear of the duplicate gear is meshed with the first gear in a matching mode, the small gear of the duplicate gear is meshed with the second gear in a matching mode, the motor is installed outside the lower end of the crushing barrel, the rotating shaft of the motor is fixedly connected with the duplicate gear, a sewage discharge port is formed in the side wall of the crushing barrel, and the sewage discharge port is located close to the crushing blades;
the filtering mechanism comprises a primary filtering tank, a neutralization tank, a secondary filtering tank and an outer discharging tank, wherein a sewage discharge port is communicated with the inlet of the primary filtering tank, the outlet of the primary filtering tank is communicated with the inlet of the neutralization tank, the outlet of the neutralization tank is communicated with the inlet of the secondary filtering tank, the outlet of the secondary filtering tank is communicated with the inlet of the outer discharging tank, and the outlet of the outer discharging tank is communicated with an external drainage pipeline.
2. The sewage treatment apparatus according to claim 1, wherein: the primary filter tank comprises a first tank body, a filter screen box, a first water suction pump, a position detector and an alarm, the filter screen box is arranged in the first tank body, the sewage discharge port is communicated with the interior of the filter screen box through a pipeline, the inlet end of the first water suction pump is connected with the bottom of the first tank body through a pipeline, the position detector is installed at the top of the filter screen box and used for detecting the collection quantity of filter materials in the filter screen box, and the control end of the alarm is electrically connected with the signal output end of the position detector.
3. The sewage treatment apparatus according to claim 2, wherein: the neutralization pond includes second cell body, second suction pump, water level detector and acid-base neutralization apparatus, water level detector installs on the inside wall upper portion of second cell body, the control end of the first suction pump of water level detector's signal output part electric connection, the delivery port of first suction pump communicates through the pipeline in the second cell body, acid-base neutralization apparatus installs in the second cell body, the entrance point of second suction pump passes through the bottom that the pipe connection is located the second cell body, the acid-base detector signal output part of acid-base neutralization apparatus connects the control end of second suction pump.
4. The sewage treatment apparatus according to claim 3, wherein: the secondary filter tank comprises a third tank body and a sludge hopper, a water outlet of the second water suction pump is communicated to an upper end inlet of the sludge hopper through a pipeline, the sludge hopper is installed in the third tank body, a water outlet is formed in the side wall of the upper portion of the third tank body, and a blow-down valve is arranged at the bottom of the third tank body.
5. The sewage treatment apparatus according to claim 4, wherein: the outer drainage pool comprises a fourth pool body, a water inlet is arranged below the side wall of the fourth pool body, the water outlet is communicated with the water inlet through a pipeline, an outer drainage port is arranged above the side wall of the fourth pool body, and the outer drainage port is communicated with an external drainage pipeline.
6. The sewage treatment apparatus according to claim 1, wherein: and mechanical sealing elements are arranged between the sleeve and the through hole as well as between the rotating shaft of the auger and the inner hole of the sleeve.
7. The sewage treatment apparatus according to claim 1, wherein: the crushing blades are made of high manganese steel.
8. The sewage treatment apparatus according to claim 1, wherein: the upper end opening part of crushing barrel is provided with flow detector, flow detector's signal output part and the control end electric connection of motor.
9. The sewage treatment apparatus according to claim 5, wherein: the first tank body and the second tank body are both internally provided with glass fiber reinforced plastic anticorrosive treatment.
10. The sewage treatment apparatus according to claim 2, wherein: the side wall and the bottom of the filter net cage are densely provided with filter meshes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810926947.3A CN108975557B (en) | 2018-08-15 | 2018-08-15 | Sewage treatment equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810926947.3A CN108975557B (en) | 2018-08-15 | 2018-08-15 | Sewage treatment equipment |
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| CN108975557A CN108975557A (en) | 2018-12-11 |
| CN108975557B true CN108975557B (en) | 2021-05-21 |
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