Automatic sludge discharging device for water treatment sludge

Abstract

The utility model discloses a kind of automatic sludge discharging devices of water treatment sludge, by sludge liquid pipe, automatic regulating valve, flocculant adding tank, flocculant metering pump, sludge flocculation tank stirring, liquid level meter, sludge flocculation tank, control module, sludge pump, sludge pipe, sludge concentration meter, filter aid adding valve, slow stirring, sludge sedimentation tank, sedimentation tank overflow pipe, sedimentation tank sludge pump, sludge filter press, sludge filtrate pipe, dewatering sludge tank composition, in industrial sewage treatment end, low concentration sludge liquid needs to be concentrated into high concentration sludge liquid, by sludge filter press squeezing out blocky sludge, convenient storage and transportation, using the method of control process liquid level, concentration and process equipment opening, through control module control system operation, reach the purpose of automatic control, realize the purpose of water treatment automatic sludge discharging, compared with current water treatment personnel field operation, improve the degree of automation operation, save post personnel, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sludge extraction in industrial wastewater treatment processes, and directly relates to an automatic sludge discharge device for water treatment sludge. Background Technology

[0002] Currently, at the end of industrial wastewater treatment, low-concentration sludge liquid needs to be concentrated into high-concentration sludge liquid, and then filtered into block sludge. The entire process requires frequent inspections and equipment starts by personnel, resulting in large fluctuations in operation and wasting manpower. Therefore, it is essential to research an automatic sludge discharge device for water treatment. Summary of the Invention

[0003] The purpose of this invention is to address the problem of on-site operation and control fluctuations during the process of concentrating low-concentration sludge liquid into high-concentration sludge liquid and then pressing it into block sludge at the end of water treatment. The invention proposes an automatic sludge discharge device for water treatment sludge, and the technical solution is as follows.

[0004] This utility model discloses an automatic sludge discharge device for water treatment sludge, comprising a sludge liquid pipe 1, an automatic regulating valve 2, a flocculant addition tank 3, a flocculant metering pump 4, a sludge flocculation tank agitator 5, a level gauge 6, a sludge flocculation tank 7, a control module 8, a sludge pump 9, a sludge pipe 10, a sludge concentration meter 11, a filter aid addition valve 12, a slow agitator 13, a sludge settling tank 14, a settling tank overflow pipe 15, a settling tank sludge pump 16, a sludge filter press 17, a sludge filtrate pipe 18, and a dewatered sludge tank 19. The automatic regulating valve 2 is installed on the sludge liquid pipe 1; the sludge liquid pipe 1 is connected to the inlet of the sludge flocculation tank 7; and sludge is installed on the upper part of the sludge flocculation tank 7. The flocculation tank is equipped with a stirring 5 and a level gauge 6 at the bottom; the flocculant addition tank 3 is connected to the flocculant inlet of the sludge flocculation tank 7 via a pipe and a flocculant metering pump 4; the outlet of the sludge flocculation tank 7 is connected to the inlet of the sludge settling tank 14 via a sludge pipe 10 and a sludge pump 9; the upper part of the sludge settling tank 14 is equipped with a slow stirring 13, a settling tank overflow pipe 15, and a filter aid addition pipe, and the bottom is equipped with a sludge concentration meter 11; the outlet of the sludge settling tank 14 is connected to the inlet of the sludge filter press 17 via a pipe and a settling tank sludge pump 16; the filtrate outlet of the sludge filter press 17 is connected to a sludge filtrate pipe 18, and a dewatering sludge tank 19 is installed at the bottom of the sludge filter press 17.

[0005] Furthermore, the control module 8 is electrically connected to the automatic regulating valve 2, the flocculant metering pump 4, the level gauge 6, the sludge pump 9, the sludge concentration meter 11, the filter aid adding valve 12, and the sludge filter press 17; the control module is connected to the main control room, and the operators in the main control room monitor the entire system with the help of the on-site camera.

[0006] Furthermore, the sludge concentration meter 11 and the sludge outlet of the sludge settling tank 14 are at the same horizontal position to ensure that the sludge result detected by the sludge concentration meter has the minimum deviation from the result entering the sludge filter press.

[0007] The purpose of this invention is achieved as follows: Sludge liquid (sludge content ≥ 8 g / L) generated after wastewater treatment enters the sludge flocculation tank through a sludge liquid pipe and an automatic regulating valve. In the sludge flocculation tank, it reacts with flocculant introduced by a flocculant metering pump. Under the action of the flocculant, the low-concentration sludge begins to clump together to form large aggregates. After reaching the bottom of the sludge flocculation tank, it is pumped by a sludge pump through a sludge pipe to a sludge settling tank, where it mixes with filter aid added at the top of the settling tank. The large aggregates of sludge gradually settle and concentrate in the settling tank. After the sludge concentration meter detects that the sludge concentration is qualified (sludge content ≥ 32 g / L), the sludge that has passed the settling and concentration test is pumped from the settling tank to a sludge filter press for dewatering to produce block sludge. The qualified block sludge is transported off-site or incinerated. The filtrate from the sludge filter press, along with the overflow from the sludge settling tank, is returned to the system for secondary treatment.

[0008] The beneficial effects of this invention are as follows: Firstly, the control module controls the amount of sludge entering the sludge tank and the amount of flocculant added based on the sludge flocculation tank level, ensuring optimal sludge flocculation. Secondly, the control module adjusts the flow rate of the sludge pump in the sludge tank based on the sludge concentration data detected by the sludge concentration meter (sludge content ≥32g / L). When the sludge content is ≥32g / L, the flow rate of the sludge pump in the sludge tank is increased; when the sludge content is <32g / L, the flow rate of the sludge pump in the sludge tank is decreased. This ensures that the sludge concentration entering the sludge filter press is qualified, resulting in the filtration of low-moisture, blocky sludge. Furthermore, the control module also adjusts the amount of filter aid added and the sludge pump flow rate based on the sludge pump flow rate in the sludge tank, ensuring continuous operation throughout the sludge discharge process. Through the program signal control of the entire sludge discharge process, the frequent manual inspections and reduced labor intensity are eliminated. Compared with on-site operation by water treatment personnel, this improves the degree of automation, saves manpower, and increases production efficiency. Attached Figure Description

[0009] Appendix Figure 1 The diagram shows the structure of an automatic sludge discharge device for water treatment according to the present invention.

[0010] Explanation of reference numerals in the attached figures: 1. Sludge liquid pipe; 2. Automatic regulating valve; 3. Flocculant addition tank; 4. Flocculant metering pump; 5. Sludge flocculation tank agitator; 6. Liquid level gauge; 7. Sludge flocculation tank; 8. Control module; 9. Sludge pump; 10. Sludge pipe; 11. Sludge concentration meter; 12. Filter aid addition valve; 13. Slow stirring; 14. Sludge settling tank; 15. Settling tank overflow pipe; 16. Settling tank sludge pump; 17. Sludge filter press; 18. Sludge filtrate pipe; 19. Dewatered sludge tank. Detailed Implementation

[0011] Now combined with the appendix Figure 1 The present invention provides a further description of an automatic sludge discharge device for water treatment sludge.

[0012] This utility model discloses an automatic sludge discharge device for water treatment sludge, comprising a sludge liquid pipe 1, an automatic regulating valve 2, a flocculant addition tank 3, a flocculant metering pump 4, a sludge flocculation tank agitator 5, a level gauge 6, a sludge flocculation tank 7, a control module 8, a sludge pump 9, a sludge pipe 10, a sludge concentration meter 11, a filter aid addition valve 12, a slow agitator 13, a sludge settling tank 14, a settling tank overflow pipe 15, a settling tank sludge pump 16, a sludge filter press 17, a sludge filtrate pipe 18, and a dewatered sludge tank 19. The automatic regulating valve 2 is installed on the sludge liquid pipe 1; the sludge liquid pipe 1 is connected to the inlet of the sludge flocculation tank 7; and sludge is installed on the upper part of the sludge flocculation tank 7. The flocculation tank is equipped with a stirring 5 and a level gauge 6 at the bottom; the flocculant addition tank 3 is connected to the flocculant inlet of the sludge flocculation tank 7 via a pipe and a flocculant metering pump 4; the outlet of the sludge flocculation tank 7 is connected to the inlet of the sludge settling tank 14 via a sludge pipe 10 and a sludge pump 9; the upper part of the sludge settling tank 14 is equipped with a slow stirring 13, a settling tank overflow pipe 15, and a filter aid addition pipe, and the bottom is equipped with a sludge concentration meter 11; the outlet of the sludge settling tank 14 is connected to the inlet of the sludge filter press 17 via a pipe and a settling tank sludge pump 16; the filtrate outlet of the sludge filter press 17 is connected to a sludge filtrate pipe 18, and a dewatering sludge tank 19 is installed at the bottom of the sludge filter press 17.

[0013] The working principle of this utility model is as follows: Sludge liquid (sludge content ≥8g / L) generated after wastewater treatment is introduced into the sludge flocculation tank through the sludge liquid pipe and automatic regulating valve. In the sludge flocculation tank, it reacts with the flocculant introduced by the flocculant metering pump. Under the action of the flocculant, the low-concentration sludge begins to clump together to form large aggregates. After reaching the bottom of the sludge flocculation tank, it is pumped by the sludge pump through the sludge pipe to the sludge settling tank. At the same time, it mixes with the filter aid added at the top of the sludge settling tank. The large aggregates of sludge gradually settle and concentrate in the sludge settling tank. After the sludge concentration meter detects that the sludge concentration is qualified (sludge content ≥32g / L), the sludge that has passed the settling and concentration test is pumped by the sludge pump in the settling tank to the sludge filter press for dewatering to produce block sludge. The qualified block sludge is transported off-site or incinerated. The filtrate from the sludge filter press, together with the overflow liquid from the sludge settling tank, is returned to the system for secondary treatment.

[0014] This invention achieves fully automated control of the entire sludge settling, thickening, and filtration process into sludge filter cake through program signal control of the control module of the entire sludge discharge process. It solves the problems of frequent manual inspections and high labor intensity of manual operation. Compared with on-site manual operation, it improves the degree of automation, saves on staff, and increases production efficiency.

Claims

1. An automatic sludge discharge device for water treatment sludge, comprising a sludge liquid pipe (1), an automatic regulating valve (2), a flocculant addition tank (3), a flocculant metering pump (4), a sludge flocculation tank agitator (5), a level gauge (6), a sludge flocculation tank (7), a control module (8), a sludge pump (9), a sludge pipe (10), a sludge concentration meter (11), a filter aid addition valve (12), a slow agitator (13), a sludge settling tank (14), a settling tank overflow pipe (15), a settling tank sludge pump (16), a sludge filter press (17), a sludge filtrate pipe (18), and a dewatered sludge tank (19), characterized in that: An automatic regulating valve (2) is installed on the sludge liquid pipe (1); the sludge liquid pipe (1) is connected to the inlet of the sludge flocculation tank (7); a sludge flocculation tank agitator (5) is installed on the upper part of the sludge flocculation tank (7), and a level gauge (6) is installed at the bottom; the flocculant addition tank (3) is connected to the flocculant inlet of the sludge flocculation tank (7) through a pipe and a flocculant metering pump (4); the outlet of the sludge flocculation tank (7) is connected to the sludge settling tank (14) through a sludge pipe (10) and a sludge pump (9). Inlet connection; a slow stirrer (13), a sedimentation tank overflow pipe (15), and a filter aid addition pipe are installed on the upper part of the sludge settling tank (14), and a sludge concentration meter (11) is installed at the bottom; the outlet of the sludge settling tank (14) is connected to the inlet of the sludge filter press (17) through a pipe and a sedimentation tank sludge pump (16); the filtrate outlet of the sludge filter press (17) is connected to the sludge filtrate pipe (18), and a dewatering sludge tank (19) is installed at the lower part of the sludge filter press (17).

2. The automatic sludge discharge device for water treatment sludge according to claim 1, characterized in that: The sludge concentration meter (11) and the sludge outlet of the sludge settling tank (14) are at the same horizontal position.

3. The automatic sludge discharge device for water treatment sludge according to claim 1, characterized in that: The control module (8) is connected to the main control room, and the operators in the main control room can remotely control the entire automatic mud discharge device.

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