CN218853706U - A sludge discharge device for sewage treatment - Google Patents

Abstract

The utility model discloses a sludge discharge device for sewage treatment, which belongs to the technical field of sewage treatment, and comprises a sewage treatment pool. The bottom of the sewage treatment pool is respectively embedded with a liquid storage tank and a sludge collection tank. The pretreatment mechanism for the sedimentation of impurities, and the sludge discharge mechanism that can filter the sludge is installed inside the liquid storage tank. The utility model can pre-filter the sludge in the sewage through the sludge filter cartridge, and through the pretreatment mechanism, by adding a flocculant to the sewage, the impurities in the sewage can be quickly degraded to form flocs, and the sedimentation speed of the impurities is accelerated. Furthermore, the sewage treatment efficiency is improved, and the sewage treatment effect is better. Through the mud discharge mechanism, the filter A intercepts and filters the flocs in the sewage, and the filter B performs secondary filtration on the sewage to filter the impurities of smaller particles.

Description

A sewage treatment sludge discharge device

technical field

The utility model belongs to the technical field of sewage treatment, in particular to a sludge discharge device for sewage treatment.

Background technique

Sewage treatment is the process of purifying sewage. Sewage contains a lot of impurities such as sludge. It is necessary to discharge the accumulated sludge to leave enough storage space for the sewage, and the accumulation of sludge will block the filter structure. In order to ensure the efficiency of sewage filtration, A sludge discharge device for sewage treatment is proposed.

Among them, after searching, it is found that there is a patent No. 202221072846.2, which discloses a sludge discharge device for sewage treatment, including a sedimentation frame, a support plate, a guide rod, a lower plate, elastic parts and a first positioning shaft, etc.; the lower part of the sedimentation frame is installed with The four supporting plates have the function of discharging the sewage into the sedimentation frame to make the sludge in the sewage settle, and then the staff moves the lower plate downward through the handrail to discharge the sewage, and the staff turns the limiting plate to the inside to make the blocking plate The material plate rotates downward, and when the sludge is discharged, the effect of separate treatment of sewage and sludge is achieved. After the sewage is discharged, the staff starts the cylinder, and the telescopic rod of the cylinder drives the connecting plate and the push rod to move forward, and then discharges the sludge. Thereby eliminating the need to manually rotate the limit plate, the compression spring has a certain telescopic function, and can reset the lower slide faster.

However, after research, it was found that the device did not have a structure to speed up the sedimentation speed of impurities in the sewage, and it needed to stand for a long time to settle, which reduced the treatment efficiency, and some suspended solids in the sewage could not be settled by standing still, and the sewage treatment effect was not good enough. , During the mud discharge process of this device, the staff needs to rotate the limit plate, and the mud discharge work cannot be performed automatically, which increases the labor intensity of the staff. Therefore, a new device is provided to solve this problem.

Utility model content

The purpose of this utility model is to provide a sludge discharge device for sewage treatment in order to solve the above problems.

The technical scheme adopted by the utility model is as follows: a sludge discharge device for sewage treatment, including a sewage treatment pool, the bottom of the sewage treatment pool is respectively embedded with a liquid storage tank and a sludge collection tank;

The inside of the sewage treatment tank is provided with a pretreatment mechanism that can accelerate the sedimentation of impurities inside the sewage, and the inside of the liquid storage tank is provided with a sludge discharge mechanism that can filter the sludge;

Wherein, the pretreatment mechanism includes a pretreatment tank, a stirring rod, a motor, a liquid tank and a metering pump;

A pretreatment tank is fixedly installed on one side of the sewage treatment tank, and a stirring rod is connected to the inside of the pretreatment tank through the rotation of a motor, and the stirring rod is surrounded by a stirring paddle, and one side of the sewage treatment tank is fixedly installed with a A liquid tank, a metering pump is installed at the outlet of the liquid tank, and the metering pump is connected to the pipeline of the pretreatment tank, a connection shell is fixedly installed inside the sewage treatment tank, and a sludge filter cartridge is connected to the inside of the connection shell through the rotation of a hollow turntable , and the surface of the sludge filter cartridge close to the pretreatment tank is provided with screen holes, and the outlet of the external sewage pipe is connected to the inlet of the sludge filter cartridge through a hollow turntable, and the bottom of the connecting shell is provided with a drain, and the drain extends to the pretreatment tank Inside, and the tail of the connecting shell is provided with a mud discharge port, and a cleaning brush is fixedly installed on the upper part of the connecting shell corresponding to the screen hole on the surface of the sludge filter cartridge, and the stirring rod is connected to the sludge filter cartridge through a chain, and the outside of the sludge filter cartridge The outside of the mixing rod and the stirring rod are all nested with a sprocket meshing with the chain. The diameter difference between the two ends of the sludge filter cartridge is 30cm. A mud pump is installed at the outlet of the pretreatment tank, and a sewage pipe is connected to the outlet of the mud pump, and the sewage The tube outlet extends above the reservoir.

Wherein, the mud discharge mechanism includes a filter screen A, a filter screen B, a servo electric cylinder, a brush plate and a baffle plate, and the filter screen A and the filter screen B are fixedly installed side by side inside the liquid storage tank, and the inside of the liquid storage tank A servo electric cylinder is embedded on one side, and a brush plate is fixedly installed at the end of the servo electric cylinder, and the number of the servo electric cylinder and the brush plate is two, and the bristles of the two brush plates are in contact with the filter screen A and the filter screen B respectively , and there is an opening between the liquid storage tank and the sludge collection tank, and the number of openings is two, which are respectively close to the filter screen A and the filter screen B, and the opening on the other side of the liquid storage tank is connected with a baffle through a rotating shaft. And the contact area between the baffle and the opening is installed with a sealing rubber strip, and the baffle is elastically connected to the liquid storage tank through a spring, the diameter of the filter hole of the filter A is 0.15mm, and the filter hole of the filter B is 0.125mm. A water pump is installed at the outlet of the liquid storage tank, and a sewage pump is installed at the outlet of the sludge collection tank.

In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

1. In this utility model, the sludge in the sewage can be pre-filtered through the sludge filter cartridge, and the impurities in the sewage can be quickly degraded to form flocs through the pretreatment mechanism by adding a flocculant to the sewage, which speeds up the process. The sedimentation speed of impurities is improved, thereby improving the efficiency of sewage treatment, and the sewage treatment effect is better.

2. In the utility model, through the mud discharge mechanism, the filter A intercepts and filters the flocs in the sewage, and the filter B performs secondary filtration on the sewage to filter the impurities of smaller particles, and the servo electric cylinder reciprocates and expands. Push the brush plate to sweep over the filter net A and filter net B, push the floc above the filter net A and filter net B to the inside of the sludge collection tank, and the bristles at the bottom of the brush plate clean the filter holes of the filter net A and filter net B Dredge to avoid clogging and ensure the filtration efficiency.

Description of drawings

Fig. 1 is a schematic diagram of the overall side sectional structure of the utility model;

Fig. 2 is a schematic diagram of enlarged structure at A place of Fig. 1 in the utility model;

Fig. 3 is a schematic diagram of enlarged structure at B of Fig. 1 in the utility model;

Fig. 4 is a schematic diagram of the local three-dimensional structure of the connection shell and the sludge filter cartridge in the utility model.

Marks in the figure: 1, sewage treatment pool; 101, liquid storage tank; 1011, filter screen A; 1012, filter screen B; 1013, servo electric cylinder; 1014, brush plate; 1015, baffle plate; 102, water pump; 103, Sludge collection tank; 1031, sewage pump; 104, connection shell; 1041, sludge filter cartridge; 1042, cleaning brush; 2, pretreatment tank; 201, stirring rod; 2011, motor; 202, liquid tank; 2021, metering pump; 203. Mud pump.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the utility model:

Referring to Figures 1-4, a sludge discharge device for sewage treatment includes a sewage treatment tank 1, and a liquid storage tank 101 and a sludge collection tank 103 are respectively embedded in the bottom of the sewage treatment tank 1;

The sewage treatment tank 1 is provided with a pretreatment mechanism that can accelerate the sedimentation of impurities inside the sewage, and the liquid storage tank 101 is provided with a sludge discharge mechanism that can filter the sludge;

Referring to Figures 1 and 4, further, the pretreatment mechanism includes a pretreatment tank 2, a stirring rod 201, a motor 2011, a liquid tank 202 and a metering pump 2021, and a pretreatment tank 2 is fixedly installed on one side of the sewage treatment tank 1, and the pretreatment The inside of the tank 2 is connected with the stirring rod 201 through the rotation of the motor 2011, and the outside of the stirring rod 201 is surrounded by a stirring paddle, and a liquid tank 202 is fixedly installed on one side of the sewage treatment tank 1, and a metering pump 2021 is installed at the outlet of the liquid tank 202, and The metering pump 2021 is connected to the pretreatment tank 2 by pipes, and the connection shell 104 is fixedly installed inside the sewage treatment tank 1, and the inside of the connection shell 104 is connected with the sludge filter cartridge 1041 through the rotation of the hollow rotating disc, and the sludge filter cartridge 1041 is close to the side of the pretreatment tank 2 The surface is provided with sieve holes, and the outlet of the external sewage pipe is rotatably connected to the inlet of the sludge filter cartridge 1041 through a hollow turntable, and the bottom of the connecting shell 104 is provided with a drain, and the drain extends to the inside of the pretreatment tank 2, and the tail of the connecting shell 104 is set There is a mud discharge port, and a cleaning brush 1042 is fixedly installed on the upper part of the connection shell 104 and corresponding to the screen hole on the surface of the sludge filter cartridge 1041, and the stirring rod 201 is connected to the sludge filter cartridge 1041 through a chain, and the outside of the sludge filter cartridge 1041 and the stirring rod The outside of 201 is nested with a sprocket meshing with the chain. The diameter difference between the two ends of the sludge filter cartridge 1041 is 30cm. A mud pump 203 is installed at the outlet of the pretreatment tank 2, and a sewage pipe is connected to the outlet of the mud pump 203, and the sewage The tube outlet extends to the top of the liquid storage tank 101;

The external sewage flows into the sludge filter cartridge 1041 through the pipeline, and then the motor 2011 drives the stirring rod 201 to rotate at a high speed, and the stirring rod 201 drives the sludge filter cartridge 1041 to rotate. The hole is thrown out to the inside of the connecting shell 104, and flows into the pretreatment tank 2 along the drain outlet at the bottom of the connecting shell 104, while the silt is intercepted by the sieve and stays inside the silt filter cartridge 1041. Rotate, silt is thrown out from the outlet of silt filter cartridge 1041 afterbody, and is discharged from the mud outlet of connecting housing 104 afterbody, and the silt filter cartridge 1041 of rotation is constantly passed by cleaning brush 1042, and cleaning brush 1042 is opposite to silt filter cartridge 1041. The sieve hole on the surface is dredged to avoid its blockage affecting the filtration efficiency. The metering pump 2021 introduces the flocculant in the liquid tank 202 into the pretreatment tank 2, and the rotating stirring rod 201 and the stirring paddle stir the sewage and the flocculant to make it Mix evenly, the flocculant quickly degrades the impurities in the sewage to form flocs, and the mud pump 203 introduces the mixture of sewage and flocs in the pretreatment tank 2 into the liquid storage tank 101 .

Referring to Figures 1, 2, and 3, further, the mud discharge mechanism includes a filter screen A1011, a filter screen B1012, a servo electric cylinder 1013, a brush plate 1014 and a baffle plate 1015, and the inside of the liquid storage tank 101 is fixedly installed with a filter screen A1011 and a filter screen. Net B1012, one side of the liquid storage tank 101 is embedded with a servo electric cylinder 1013, and the end of the servo electric cylinder 1013 is fixed with a brush plate 1014, and the number of the servo electric cylinder 1013 and the brush plate 1014 is two, and the two brush plates 1014 bristles are in contact with the filter screen A1011 and the filter screen B1012 respectively, and an opening is arranged between the liquid storage tank 101 and the sludge collection tank 103, and the number of openings is two, which are respectively close to the filter screen A1011 and the filter screen B1012, and the liquid storage tank 101 The opening on the other side is connected to the baffle 1015 through the rotation of the rotating shaft, and a sealing rubber strip is installed on the contact area between the baffle 1015 and the opening, and the baffle 1015 is elastically connected to the liquid storage tank 101 through a spring, and the filter hole diameter of the filter A1011 is 0.15 mm, the filter hole of filter screen B1012 is 0.125mm, a water pump 102 is installed at the outlet of the liquid storage tank 101, and a sewage pump 1031 is installed at the outlet of the sludge collection tank 103;

The sewage is filtered by the filter A1011 and the filter B1012 and then flows to the bottom of the liquid storage tank 101 for storage. The filter A1011 intercepts and filters the flocs in the sewage, and the filter B1012 performs secondary filtration on the sewage to remove the impurities of smaller particles. Filtration, the servo electric cylinder 1013 reciprocates and expands, pushes the brush plate 1014 to sweep over the filter screen A1011 and the filter screen B1012, pushes the sludge above the filter screen A1011 and the filter screen B1012 to the baffle plate 1015, and the servo electric cylinder 1013 continues to extend Long, push the baffle 1015 to rotate, the opening leaks out, the flocs are pushed out from the opening and fall to the inside of the sludge collection tank 103, and then the servo electric cylinder 1013 shrinks and resets, and the baffle 1015 resets under the action of the spring force to close the opening. Blocking and sealing, so reciprocating, the bristles at the bottom of the brush plate 1014 dredge the filter holes of the filter screen A1011 and the filter screen B1012 to avoid clogging and ensure the filtration efficiency. The sludge inside the sludge collection tank 103 is discharged.

Referring to Figures 1 and 2, further, the servo electric cylinder 1013, the water pump 102, the sewage pump 1031, the motor 2011, the metering pump 2021 and the mud pump 203 are all electrically connected to the external power supply through the control panel.

Working principle: First, the external sewage flows into the sludge filter cartridge 1041 through the pipeline, then the motor 2011 drives the stirring rod 201 to rotate at a high speed, and the stirring rod 201 drives the sludge filter cartridge 1041 to rotate, and the sewage generates centrifugal force inside the sludge filter cartridge 1041 and is discharged from the sludge filter cartridge The sieve hole on the surface of 1041 is thrown out to the inside of the connecting shell 104, and flows into the pretreatment tank 2 along the drain outlet at the bottom of the connecting shell 104, while the sludge is intercepted by the sieve hole and stays inside the sludge filter cartridge 1041. The mud filter cartridge 1041 rotates, and because the diameters of the two ends of the mud filter cartridge 1041 are different, the mud is thrown out from the outlet at the tail of the mud filter cartridge 1041, and is discharged into the mud collection tank 103 from the mud discharge port at the tail of the connecting shell 104. The sludge filter cartridge 1041 passes by the cleaning brush 1042 continuously, and the cleaning brush 1042 dredges the sieve hole on the surface of the sludge filter cartridge 1041 to avoid its blockage affecting the filtration efficiency. The metering pump 2021 introduces the flocculant inside the liquid tank 202 into the pretreatment tank 2. Inside, the rotating stirring rod 201 and the stirring paddle stir the sewage and the flocculant to make them evenly mixed. The flocculant quickly degrades the impurities in the sewage to form flocs. The floc mixture is introduced into the liquid storage tank 101, and the sewage is filtered by the filter screen A1011 and the filter screen B1012, and then flows to the bottom of the liquid storage tank 101 for storage. Secondary filtration, to filter the impurities with smaller particles, and then the servo electric cylinder 1013 reciprocates and stretches, pushing the brush plate 1014 to sweep over the filter net A1011 and the filter net B1012, and pushes the flocs above the filter net A1011 and the filter net B1012 At the baffle plate 1015, the servo electric cylinder 1013 continues to extend, pushes the baffle plate 1015 to rotate, leaks the opening, pushes the sludge from the opening and falls to the inside of the sludge collection tank 103, and then the servo electric cylinder 1013 shrinks and resets, blocking The plate 1015 resets under the action of the spring force to cover and seal the opening. In this way, the bristles at the bottom of the brush plate 1014 dredge the filter holes of the filter screen A1011 and the filter screen B1012 to avoid clogging and ensure the filtration efficiency. Finally, the water pump 102 will pass through The filtered clear sewage is exported for utilization, and the sewage pump 1031 discharges the sludge inside the sludge collection tank 103 .

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (7)

1. A sludge discharge device for sewage treatment, comprising a sewage treatment tank (1), characterized in that: a liquid storage tank (101) and a sludge collection tank (103) are respectively embedded in the bottom of the sewage treatment tank (1); The sewage treatment tank (1) is internally provided with a pretreatment mechanism that can accelerate the sedimentation of impurities inside the sewage, and the liquid storage tank (101) is internally provided with a sludge discharge mechanism that can filter the sludge; The pretreatment mechanism includes a pretreatment tank (2), a stirring rod (201), a motor (2011), a liquid tank (202) and a metering pump (2021); A pretreatment tank (2) is fixedly installed on one side of the sewage treatment tank (1), and a stirring rod (201) is connected to the inside of the pretreatment tank (2) through a motor (2011), and the stirring rod (201) A stirring paddle is arranged around the outside, a liquid tank (202) is fixedly installed on one side of the sewage treatment tank (1), and a metering pump (2021) is installed at the outlet of the liquid tank (202), and the metering pump (2021) Connect with the pretreatment tank (2) pipeline. 2. A sludge discharge device for sewage treatment according to claim 1, characterized in that: a connection shell (104) is fixedly installed inside the sewage treatment tank (1), and the inside of the connection shell (104) passes through a hollow turntable A sludge filter cartridge (1041) is rotationally connected, and the surface of the sludge filter cartridge (1041) close to the pretreatment tank (2) is provided with screen holes, and the outlet of the external sewage pipe is rotatably connected to the inlet of the sludge filter cartridge (1041) through a hollow rotary disc , and the bottom of the connecting shell (104) is provided with a drainage port, and the drain port extends to the inside of the pretreatment tank (2), and the tail of the connecting shell (104) is provided with a mud discharge port, and the upper part of the connecting shell (104) is connected with the sludge A cleaning brush (1042) is fixedly installed at the corresponding place on the surface of the filter cartridge (1041), and the stirring rod (201) is connected to the sludge filter cartridge (1041) through a chain, and the outside of the sludge filter cartridge (1041) and the stirring rod (201 ) are nested with sprockets engaged with the chain, and the diameter difference between the two ends of the sludge filter cartridge (1041) is 30cm. 3. A sludge discharge device for sewage treatment according to claim 1, characterized in that: a mud pump (203) is installed at the outlet of the pretreatment tank (2), and the outlet of the mud pump (203) is connected to a sewage discharge pipe, and the drain pipe outlet extends above the liquid storage tank (101). 4. A sludge discharge device for sewage treatment according to claim 1, characterized in that: the sludge discharge mechanism includes a filter A (1011), a filter B (1012), a servo electric cylinder (1013), a brush plate (1014) and baffle (1015); A filter A (1011) and a filter B (1012) are fixedly installed side by side in the liquid storage tank (101), and a servo electric cylinder (1013) is embedded in one side of the liquid storage tank (101). A brush plate (1014) is fixedly installed at the end of the servo electric cylinder (1013), and the number of the servo electric cylinder (1013) and the brush plate (1014) are both two, and the bristles of the two brush plates (1014) are respectively connected to the filter A ( 1011) is in contact with the filter screen B (1012), and there is an opening between the liquid storage tank (101) and the sludge collection tank (103), and the number of openings is two, which are respectively close to the filter screen A (1011) and the filter screen B (1012), the opening on the other side of the liquid storage tank (101) is connected to a baffle (1015) through a rotating shaft, and a sealing rubber strip is installed on the contact area between the baffle (1015) and the opening, and the baffle (1015) It is elastically connected with the liquid storage tank (101) through a spring. 5. The sludge discharge device for sewage treatment according to claim 4, characterized in that: the diameter of the filter hole of the filter A (1011) is 0.15mm, and the filter hole of the filter B (1012) is 0.125mm. 6. The sludge discharge device for sewage treatment according to claim 1, characterized in that: a water pump (102) is installed at the outlet of the liquid storage tank (101). 7. The sludge discharge device for sewage treatment according to claim 1, characterized in that: a sewage pump (1031) is installed at the outlet of the sludge collection tank (103).

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