CN210457715U

CN210457715U - Sewage station adds medicine clean system

Info

Publication number: CN210457715U
Application number: CN201920216064.3U
Authority: CN
Inventors: 逯志海
Original assignee: Shandong Laigang Yongfeng Steel and Iron Co Ltd
Current assignee: Shandong Laigang Yongfeng Steel and Iron Co Ltd
Priority date: 2019-02-20
Filing date: 2019-02-20
Publication date: 2020-05-05
Anticipated expiration: 2029-02-20

Abstract

The utility model discloses a sewage station dosing purification system, which comprises a flocculation tank; the flocculation tank is connected to the rear adjusting tank through a middle pipe; the middle pipe is provided with a middle pump; the rear adjusting tank is connected to the ultrafiltration and reverse osmosis equipment through a water outlet pipe; the input ends of the intermediate pipe and the water outlet pipe are provided with filter screens; a lime dosing pipeline, a sodium carbonate dosing pipe and a polyferric dosing pipe are laid at the top of the inner side of the flocculation tank; the lime dosing pipeline, the sodium carbonate dosing pipe and the polyferric dosing pipe are respectively connected to the lime tank, the sodium carbonate dosing tank and the polyferric dosing tank through metering pumps; PH meters are respectively arranged in the coagulation tank and the rear adjusting tank; the top of the inner side of the rear regulating tank is connected to a concentrated sulfuric acid tank through a metering pump. The utility model discloses a sewage station dosing purification system; reduce the turbidity of the effluent of the clarifier, reduce the hardness of carbonate and reduce the burden of ultrafiltration and reverse osmosis equipment.

Description

Sewage station adds medicine clean system

Technical Field

The utility model relates to a sewage treatment system, concretely relates to sewage station adds medicine clean system belongs to sewage treatment system technical field.

Background

In the steel smelting industry, the types of sewage generated on an energy power supply system are complex, such as Chinese patent application numbers: 201721242885.1, it comprises a shell, the outer wall of the shell is provided with a gas inlet, a cooling water outlet, a cooling water inlet, a gas outlet and a condensed water outlet from top to bottom, the interior of the shell is provided with a heat pipe exchanger and a condensed water funnel which are corresponding up and down, the condensed water funnel is connected with the condensed water outlet, the gas outlet is arranged between the heat pipe exchanger and the condensed water funnel, the heat pipe heat exchange is carried outThe device is respectively connected with the cooling water outlet and the cooling water inlet; the generated condensed water is discharged into a sewage station, while the existing sewage station adopts the chemical adding treatment process of polyaluminium chloride and polyacrylamide, and because the condensed water of converter gas and Fe in water are mixed in the sewage²+ cannot be completely polymerized and settled, resulting in a higher turbidity (4-5 NTU) of the effluent from the clarifier.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a chemical feeding and purifying system for a sewage station; adding the Fe into the water by adopting a lime-sodium carbonate dosing process³⁺、Ca⁺Precipitating to reduce the turbidity of the effluent of the clarifier and simultaneously regulating and controlling the pH value.

The utility model discloses a sewage station dosing purification system, which comprises a flocculation tank; the flocculation tank is connected to the rear adjusting tank through a middle pipe; the middle pipe is provided with a middle pump; the rear adjusting tank is connected to the ultrafiltration and reverse osmosis equipment through a water outlet pipe; the input ends of the intermediate pipe and the water outlet pipe are provided with filter screens; a lime dosing pipeline, a sodium carbonate dosing pipe and a polyferric dosing pipe are laid at the top of the inner side of the flocculation tank; the lime dosing pipeline, the sodium carbonate dosing pipe and the polyferric dosing pipe are respectively connected to the lime tank, the sodium carbonate dosing tank and the polyferric dosing tank through metering pumps; PH meters are respectively arranged in the coagulation tank and the rear adjusting tank; the top of the inner side of the rear regulating tank is connected to a concentrated sulfuric acid tank through a metering pump.

As a preferred embodiment, a polyacrylamide feeding device is further arranged on the flocculation tank.

As a preferred embodiment, liquid level transmitters are further arranged on the inner sides of the coagulation tank and the rear adjusting tank; the PH meter is a PH value transmitter; the liquid level transmitter and the PH value transmitter are electrically connected to the minimum system of the single chip microcomputer; the minimum system of the single chip microcomputer is electrically connected with each metering pump; the liquid level transmitter and the PH value transmitter acquire a current liquid level value and a current PH value, convert the current liquid level value and the current PH value into a digital value which can be processed by the singlechip minimum system and send the digital value to the singlechip minimum system; the minimum system of the single chip microcomputer determines the feeding threshold value of the metering pump according to the liquid level and the PH value, the metering pump carries out intermittent operation, namely, delayed data acquisition is carried out after feeding, and the reaction is ensured to be more sufficient.

Compared with the prior art, the utility model discloses a sewage station adds medicine clean system; reduce the turbidity of the effluent of the clarifier, reduce the hardness of carbonate and reduce the burden of ultrafiltration and reverse osmosis equipment.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Detailed Description

The chemical adding and purifying system for the sewage station as shown in figure 1 comprises a flocculation tank 1; the flocculation tank 1 is connected to a rear adjusting tank 3 through a middle pipe 2; the intermediate pipe 2 is provided with an intermediate pump 4; the rear adjusting tank 3 is connected to an ultrafiltration and reverse osmosis device 6 through a water outlet pipe 5; the input ends of the intermediate pipe 2 and the water outlet pipe 5 are provided with filter screens 7; a lime dosing pipeline 8, a sodium carbonate dosing pipe 9 and a polyferric dosing pipe 10 are laid at the top of the inner side of the flocculation tank 1; the lime dosing pipeline 8, the sodium carbonate dosing pipe 9 and the polyferric dosing pipe 10 are respectively connected to a lime tank 12, a sodium carbonate dosing tank 13 and a polyferric dosing tank 14 through a metering pump 11; PH meters 15 are respectively arranged in the coagulation tank 1 and the rear adjusting tank 3; the top of the inner side of the rear adjusting tank 3 is connected to a concentrated sulfuric acid medicine tank 16 through a metering pump.

In another embodiment, a polyacrylamide feeding device is further arranged on the flocculation tank 1.

In another embodiment, liquid level transmitters (not shown) are further arranged inside the coagulation tank 1 and the rear adjusting tank 3; the pH meter 15 is a pH value transmitter; the liquid level transmitter and the PH value transmitter are electrically connected to the minimum system of the single chip microcomputer; the minimum system of the single chip microcomputer is electrically connected with each metering pump; the liquid level transmitter and the PH value transmitter acquire a current liquid level value and a current PH value, convert the current liquid level value and the current PH value into a digital value which can be processed by the singlechip minimum system and send the digital value to the singlechip minimum system; the minimum system of the single chip microcomputer determines the feeding threshold value of the metering pump according to the liquid level and the PH value, the metering pump carries out intermittent operation, namely, delayed data acquisition is carried out after feeding, and the reaction is ensured to be more sufficient.

In the implementation, the existing sewage station is improved, and two groups of treatment tanks, namely a flocculation tank and a rear adjusting tank, are designed; firstly, laying a lime dosing pipeline and a sodium carbonate dosing pipeline, and establishing a lime dosing pipeline and sodium carbonate dosing pipeline feeding system; then, the existing polyaluminium chloride is changed into a polyferric dosing system; when sewage is treated, lime is added into the flocculation tank through a lime dosing pipeline to adjust the PH value to 10-11, and sodium carbonate and polyferric are added for flocculation and precipitation; after the precipitation is finished, delivering filtered water to a rear adjusting tank through an intermediate pipe, and adjusting the pH value to about 7 by adding concentrated sulfuric acid; finally, the sewage enters ultrafiltration and reverse osmosis equipment, so that the load of the ultrafiltration and reverse osmosis equipment can be well reduced.

The above-mentioned embodiment is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles of the present invention are included in the claims of the present invention.

Claims

1. The utility model provides a sewage station adds medicine clean system which characterized in that: comprises a flocculation tank; the flocculation tank is connected to the rear adjusting tank through a middle pipe; the middle pipe is provided with a middle pump; the rear adjusting tank is connected to the ultrafiltration and reverse osmosis equipment through a water outlet pipe; the input ends of the intermediate pipe and the water outlet pipe are provided with filter screens; a lime dosing pipeline, a sodium carbonate dosing pipe and a polyferric dosing pipe are laid at the top of the inner side of the flocculation tank; the lime dosing pipeline, the sodium carbonate dosing pipe and the polyferric dosing pipe are respectively connected to the lime tank, the sodium carbonate dosing tank and the polyferric dosing tank through metering pumps; PH meters are respectively arranged in the coagulation tank and the rear adjusting tank; the top of the inner side of the rear regulating tank is connected to a concentrated sulfuric acid tank through a metering pump.

2. The sewage station dosing purification system of claim 1, further comprising: and a polyacrylamide feeding device is also arranged on the flocculation tank.

3. The sewage station dosing purification system of claim 1, further comprising: liquid level transmitters are arranged on the inner sides of the coagulation tank and the rear adjusting tank; the PH meter is a PH value transmitter; the liquid level transmitter and the PH value transmitter are electrically connected to the minimum system of the single chip microcomputer; and the minimum system of the single chip microcomputer is electrically connected with each metering pump.