CN218421531U

CN218421531U - Sewage integration treatment facility preprocessing device

Info

Publication number: CN218421531U
Application number: CN202222123626.4U
Authority: CN
Inventors: 陈道康; 陈梦雪; 黄勇; 俞朝庭
Original assignee: Nanjing Gaoke Environmental Technology Co ltd
Current assignee: Nanjing Gaoke Environmental Technology Co ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2023-02-03
Anticipated expiration: 2032-08-12

Abstract

The utility model provides a sewage integrated treatment device pretreatment device, which comprises a sewage submersible pump, a pre-settling tank, a water inlet tank and a PLC control system, wherein the sewage submersible pump is used for extracting sewage, a water outlet of the sewage submersible pump is connected with a water inlet of the pre-settling tank, a primary screen is arranged inside the pre-settling tank below the water outlet, and a funnel-shaped central pipe and an overflow weir are arranged below the primary screen; the top of the water inlet tank is provided with a secondary screen, the outside of the water inlet tank is provided with a water inlet pump communicated with the inside of the water inlet tank through a pipeline, and the water outlet of the pre-settling tank is positioned on the side wall between the primary screen and the overflow weir and is connected with the water inlet of the secondary screen; the pre-settling tank is also provided with a mud level meter and a mud valve, the water inlet tank is also provided with a liquid level meter, the PLC control system is respectively connected with the sewage submersible pump, the mud level meter, the mud valve and the liquid level meter, and the opening and closing of the mud valve and the sewage submersible pump are automatically controlled through the feedback of the mud level meter and the liquid level meter. The device can carry out the preliminary treatment to sewage, can reduce to block up and realize automated control.

Description

Sewage integration treatment facility preprocessing device

Technical Field

The utility model belongs to the technical field of sewage treatment, in particular to sewage integration treatment device preprocessing device.

Background

With the development of economy and society, the living standard of people is improved, more and more sewage and wastewater are discharged, and sewage treatment becomes an urgent requirement for the development of social economy. Sewage treatment refers to a process of purifying sewage to meet the water quality requirements for drainage or reuse. Sewage integrated processing apparatus mainly includes preliminary treatment and advanced treatment twice process, advanced treatment is mainly to carry out aeration to sewage, the oxidation, purification treatment such as disinfection, and the preliminary treatment mainly is the solid rubbish in the discharge sewage, prevent that the solid rubbish in the sewage from causing wearing and tearing to follow-up purification unit, harm such as jam, current pretreatment unit is mainly that installation filter screen filters sewage on the case of intaking, but when the filter screen was filled with at every turn, just need to filter the basket and dismantle, the operation is very inconvenient, and easy long-pending mud in the case of intaking, block up the intake pump, the clearance is unchangeable.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to solve the defects of the prior art, the utility model provides a sewage integration treatment facility preprocessing device, it carries out the preliminary treatment to sewage through setting up preliminary sedimentation tank and automatic control system, guarantees follow-up integration treatment facility steady operation.

The technical scheme is as follows: the utility model provides a sewage integrated treatment device pretreatment device, which comprises a sewage submersible pump, a pre-settling tank, a water inlet tank and a PLC control system, wherein the sewage submersible pump, the pre-settling tank and the water inlet tank are connected in sequence; the top of the water inlet tank is provided with a secondary screen, the outside of the water inlet tank is provided with a water inlet pump communicated with the inside of the water inlet tank through a pipeline, and the water inlet pump is used for pumping out water filtered by the secondary screen; the water outlet of the pre-settling tank is positioned on the side wall between the primary screen and the overflow weir and is connected with the water inlet of the secondary screen; the pre-settling tank is also provided with a mud level meter and a mud valve, the water inlet tank is also provided with a liquid level meter, the PLC control system is respectively connected with the sewage submersible pump, the mud level meter, the mud valve and the liquid level meter, and the opening and closing of the mud valve and the sewage submersible pump are automatically controlled through the feedback of the mud level meter and the liquid level meter.

As a preferable or improved scheme:

and a water inlet electric ball valve is also arranged on a pipeline for connecting the water outlet of the sewage submersible pump with the water inlet of the pre-sedimentation tank, and the water inlet electric ball valve is connected with the PLC control system.

The upper part of the pre-settling tank is cylindrical, the lower part of the pre-settling tank is conical, and the overflow weir is a circular overflow weir and is arranged in the middle of the cylinder.

The sludge outlet of the pre-settling tank is positioned at the bottom, and the sludge discharge valve is arranged on a pipeline connected below the sludge outlet.

The first-stage screen is a 10-40 mesh filtering screen.

The edge of the water inlet of the funnel-shaped central pipe is connected with the inner wall of the pre-settling tank, so that sewage flows into the funnel-shaped central pipe after being filtered by the primary screen and then flows into the lower part of the overflow weir from the water outlet of the funnel-shaped central pipe; preferably, the water outlet of the funnel-shaped central pipe extends to the position below the overflow weir and close to the bottom of the pre-settling tank.

The overflow weir top opening, the bottom edge extends to and is connected with the lateral wall in preliminary sedimentation tank, and the inside supernatant of preliminary sedimentation tank can overflow in the space that overflow weir outer wall and preliminary sedimentation tank inner wall formed.

The secondary screen is a 20-80 mesh filtering screen.

A water outlet is formed in the bottom of the water inlet tank, a water discharging electric ball valve is arranged on a pipeline connected below the water outlet, and the pipeline leads to sewage where the sewage submersible pump is located; and the electric drainage ball valve is connected with the PLC control system.

Has the advantages that: compared with the prior art, the utility model has the advantages of it is following:

1) Through setting up the preliminary sedimentation tank, the mud sediment siltation in the reducible inlet tank, the supernatant after the sediment gets into the inlet tank, reduces follow-up integrated treatment facility's dirty stifled.

2) Through setting up twice filter screen, the particulate impurity in the reducible inlet tank reduces the pipe blockage of follow-up integrated equipment.

3) The automatic control, automatic water inlet and sludge discharge are realized through the PLC system, and the normal operation of continuous and stable water inlet and subsequent sewage integrated treatment equipment is ensured.

Drawings

Fig. 1 is a schematic structural diagram of the pretreatment device of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Examples

A sewage integrated treatment equipment pretreatment device is shown in figure 1 and comprises a sewage submersible pump 1, a pre-settling tank 2, a water inlet tank 3 and a PLC control system, wherein the sewage submersible pump 1, the pre-settling tank 2 and the water inlet tank 3 are sequentially connected, the sewage submersible pump 1 is used for extracting sewage, a water outlet of the sewage submersible pump is connected with a water inlet of the pre-settling tank 2, a first-stage screen 21 is arranged below the water outlet inside the pre-settling tank 2, a funnel-shaped central pipe 25 and an overflow weir 22 are arranged below the first-stage screen 21, the water inlet of the funnel-shaped central pipe 25 is positioned above the overflow weir 22, and the water outlet extends to the lower part of the overflow weir 22; the top of the water inlet tank 3 is provided with a secondary screen 31, the outside of the water inlet tank is provided with a water inlet pump 32 communicated with the inside of the water inlet tank 3 through a pipeline, and the water inlet pump 32 is used for pumping out water filtered by the secondary screen 31; the water outlet of the preliminary sedimentation tank 2 is positioned on the side wall between the primary screen 21 and the overflow weir 22 and is connected with the water inlet of the secondary screen 31; the pre-settling tank 2 is also provided with a mud level meter 23 and a mud valve 24, the water inlet tank 3 is also provided with a liquid level meter 33 (adopting a floating ball liquid level meter), the PLC control system is respectively connected with the sewage submersible pump 1, the mud level meter 23, the mud valve 24 and the liquid level meter 33, and the opening and the closing of the mud valve 24 and the sewage submersible pump 1 are automatically controlled through the feedback of the mud level meter 23 and the liquid level meter 33.

And a water inlet electric ball valve 11 is also arranged on a pipeline for connecting the water outlet of the sewage submersible pump 1 with the water inlet of the pre-sedimentation tank 2, and the water inlet electric ball valve 11 is also connected with the PLC control system.

The upper part of the preliminary sedimentation tank 2 is cylindrical, the lower part is conical, and the overflow weir 22 is a circular overflow weir and is arranged on the cylindrical upper part. The edge of the water inlet of the funnel-shaped central pipe 25 is connected with the inner wall of the pre-settling tank 2, so that the sewage flows into the funnel-shaped central pipe 25 after being filtered by the primary screen 21 and then flows into the lower part of the overflow weir 22 from the water outlet of the funnel-shaped central pipe; the outlet of the funnel-shaped central pipe 25 extends to a position below the overflow weir 22 and close to the bottom of the pre-settling tank 2. The sludge outlet of the pre-settling tank 2 is positioned at the bottom, and the sludge discharge valve 24 is arranged on a pipeline connected below the sludge outlet. The overflow weir 22 is open at the top, the bottom edge extends to be connected with the side wall of the preliminary sedimentation tank 2, and the supernatant in the preliminary sedimentation tank 2 can overflow into the space formed by the outer wall of the overflow weir 22 and the inner wall of the preliminary sedimentation tank 2.

The first-stage screen 21 is a 10-40 mesh filter screen, and the second-stage screen 31 is a 20-80 mesh filter screen, and is used for removing granular impurities with different particle sizes.

A water outlet is formed in the bottom of the water inlet tank 3, a water discharging electric ball valve 34 is arranged on a pipeline connected below the water outlet, and the pipeline leads to sewage where the sewage submersible pump 1 is located; the electric drain ball valve 34 is also connected with the PLC control system.

The working method and the principle of the pretreatment device are as follows:

sewage immersible pump 1 extraction sewage gets into preliminary sedimentation tank 2, and large granule impurity gets rid of after one-level screen cloth 21 filters, and sewage flows in preliminary sedimentation tank 2 bottom through funnel type center tube 25, and the mud sediment in the sewage is depositd in preliminary sedimentation tank 2, and the supernatant passes through the second grade screen cloth 31 of overflow weir 22 flow direction in the water tank 3 that intakes, filters the back through second grade screen cloth 31, further gets rid of tiny particulate impurity, and sewage after the filtration is gone into sewage integration through intake pump 32 and is handled experimental facilities. Meanwhile, in order to conveniently empty the sewage in the water inlet tank 3, the electric drainage ball valve 34 can be started to mix the treated sewage with the sludge discharged from the pre-sedimentation tank 2 and then the mixed sewage enters the sewage tank again.

The mud valve 24 is controlled to be switched on and off by the mud level meter 23 through a PLC system, and when the mud level of the pre-settling tank 2 reaches a certain height, the mud valve 24 is opened to discharge mud residues; the sewage submersible pump 1 is controlled to start and stop by a floating ball liquid level meter 33 through a PLC control system, and when the floating ball is at a low liquid level, the sewage submersible pump 1 is started to pump sewage into the pre-sedimentation tank 2; when the floating ball is at a high liquid level, the sewage submersible pump 1 is closed. The PLC control system mainly receives signals through a signal isolator, outputs the signals, and controls the equipment switch through a control module, and the signals and the equipment switch can be realized through conventional technologies and equipment.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The pretreatment device of the integrated sewage treatment equipment is characterized by comprising a sewage submersible pump (1), a pre-settling tank (2), a water inlet tank (3) and a PLC (programmable logic controller) control system, wherein the sewage submersible pump (1) is sequentially connected with the water inlet tank (2), a water outlet of the sewage submersible pump is connected with a water inlet of the pre-settling tank (2), a primary screen (21) is arranged below the water outlet inside the pre-settling tank (2), a funnel-shaped central pipe (25) and an overflow weir (22) are arranged below the primary screen (21), the water inlet of the funnel-shaped central pipe (25) is positioned above the overflow weir (22), and the water outlet extends to the lower part of the overflow weir (22); the top of the water inlet tank (3) is provided with a secondary screen (31), and the outside of the water inlet tank is provided with a water inlet pump (32) communicated with the inside of the water inlet tank (3) through a pipeline; the water outlet of the pre-settling tank (2) is positioned on the side wall between the primary screen (21) and the overflow weir (22) and is connected with the water inlet of the secondary screen (31); the pre-settling tank (2) is further provided with a mud level meter (23) and a mud valve (24), the water inlet tank (3) is further provided with a liquid level meter (33), the PLC control system is respectively connected with the sewage submersible pump (1), the mud level meter (23), the mud valve (24) and the liquid level meter (33), and the mud valve (24) and the sewage submersible pump (1) are automatically controlled to be opened and closed through feedback of the mud level meter (23) and the liquid level meter (33).

2. The pretreatment device of the integrated sewage treatment equipment according to claim 1, wherein a water inlet electric ball valve (11) is further mounted on a pipeline connecting a water outlet of the sewage submersible pump (1) and a water inlet of the pre-settling tank (2), and the water inlet electric ball valve (11) is connected with the PLC control system.

3. The integrated sewage treatment equipment pretreatment device according to claim 1, wherein the upper part of the preliminary sedimentation tank (2) is cylindrical, the lower part thereof is conical, and the overflow weir (22) is a circular overflow weir and is arranged in the middle of the cylindrical shape.

4. The integrated sewage treatment equipment pretreatment device according to claim 1, wherein the sludge outlet of the pre-settling tank (2) is positioned at the bottom, and the sludge discharge valve (24) is arranged on a pipeline connected below the sludge outlet.

5. The integrated sewage treatment equipment pretreatment device according to claim 1, wherein the primary screen (21) is a 10-40 mesh filter screen.

6. The pretreatment device of integrated wastewater treatment equipment according to claim 1, wherein the water inlet edge of the funnel-shaped central tube (25) is connected with the inner wall of the pre-settling tank (2), so that wastewater filtered by the primary screen (21) flows into the funnel-shaped central tube (25) and then flows into the lower part of the overflow weir (22) from the water outlet.

7. The integrated wastewater treatment equipment pretreatment device according to claim 6, wherein the outlet of the funnel-shaped central pipe (25) extends to a position below the overflow weir (22) and near the bottom of the pre-settling tank (2).

8. The integrated sewage treatment equipment pretreatment device according to claim 1, wherein the overflow weir (22) is open at the top, the bottom edge extends to be connected with the side wall of the preliminary sedimentation tank (2), and the supernatant inside the preliminary sedimentation tank (2) can overflow into the space formed by the outer wall of the overflow weir (22) and the inner wall of the preliminary sedimentation tank (2).

9. The integrated sewage treatment equipment pretreatment device according to claim 1, wherein the secondary screen (31) is a 20-80 mesh filter screen.

10. The pretreatment device of the integrated sewage treatment equipment according to claim 1, wherein a water outlet is arranged at the bottom of the water inlet tank (3), a water discharge electric ball valve (34) is arranged on a pipeline connected below the water outlet, and the pipeline leads to sewage where the sewage submersible pump (1) is located; and the electric drainage ball valve (34) is connected with the PLC control system.