Complete equipment for reducing moisture content of muddy water entering sludge dewatering machine

Abstract

The invention aims to provide complete equipment for reducing the moisture content of entering muddy water of a sludge dewatering machine so as to solve the problem that the moisture content of a mud cake of an existing sludge dewatering machine exceeds the standard. The invention relates to complete equipment for reducing the moisture content of entering muddy water of a sludge dewatering machine, which is characterized in that a muddy water flocculation and concentration tank is designed and manufactured, the appearance is an upper cylinder and a lower cone, four flocculant inlets and a muddy water inlet are arranged at the upper and lower joints, the top of the cylinder is provided with an upper clear water overflow port, and the lower port of the cone is used for discharging mud; mud water and a flocculating agent are fully mixed through rotation, mud flocculation is promoted, and mud is pushed and scraped to be not blocked. According to the measurement and control part, a camera is installed on a tank, the fixed angle of the camera is adjusted to be aligned with mud-water interface identification scales on a transmission rod of the stirring mud scraper, an image of the camera is recognized through AI to distinguish a mud-water interface, data is fed back to a PLC to drive a mud water pump and a dosing pump, and the input amount of a flocculating agent is adjusted in time; dynamic balance of muddy water inlet and outlet and flocculant adding is kept.

Description

Technical Field

[0001] The invention relates to the field of tailwater sludge treatment, in particular to a complete set of equipment for reducing the moisture content of mud water entering a sludge dewatering machine. Background Art

[0002] Sludge dewatering generally involves flocculating the mud and water before entering the sludge dewatering machine for dewatering. Often, the moisture content of the mud cake exceeds the standard due to the high moisture content of the mud and water. Before the mud and water enter the sludge dewatering machine, the mud and water are flocculated and concentrated by adding chemicals, and a part of the water is separated in advance, so that the moisture content of the mud entering the sludge dewatering machine is reduced, thereby reducing the moisture content of the mud cake. The mud and water flocculate and the mud sinks and concentrates, the water precipitates and floats, the mud and water are separated, the water layer is clear, and the mud layer is turbid. The upper clear water overflows and the mud is discharged from the bottom of the flocculation and concentration tank and sent to the sludge dewatering machine for dewatering. Summary of the invention

[0003] The object of the present invention is to provide a complete set of equipment for reducing the moisture content of the mud water entering a sludge dewatering machine, so as to help solve the technical problem of reducing the moisture content of the mud cake of the sludge dewatering machine.

[0004] In order to solve the above technical problems, the specific technical solution of a complete set of equipment for reducing the moisture content of the mud water entering the sludge dewatering machine of the present invention is as follows:

[0005] A complete set of equipment for reducing the moisture content of mud water entering a sludge dewatering machine is designed and manufactured. The mud water flocculation and concentration tank has an upper cylinder and a lower cone in shape. There are two upper and lower vertical observation windows on the wall of the cylindrical tank body. An energy releaser is installed on the top of the cylinder to the upper and lower intersection of the column and cone. A mud water inlet is opened on the bottom of the energy releaser. The bottom side of the energy releaser is opened close to the upper and lower intersection of the tank column and cone to let the released mud water flow in. Four flocculant injection ports are opened on the cone under the upper and lower intersection of the column and cone. There is an upper clear water overflow port on the top of the cylinder, and the lower port of the cone discharges mud. A stirring scraper is arranged in the flocculation and concentration tank. The stirring scraper is equipped with a scraper plate. The scraper plate can achieve full mixing of mud water and flocculant through rotation, promote mud flocculation, and push and scrape the mud to prevent it from clogging. The driving rod of the stirring scraper extends out of the cone mouth to the soft connection. The lower end of the rod is welded with a mud stirring thorn branch to prevent mud blockage; the stirring driving rod is welded with a tank wall observation glass cleaning scraper that rotates with the stirring driving rod at the lower half of the cylinder. The stirring scraper rotates forward and stirs and scrapes normally; the stirring scraper is reversed at a fixed time. In addition to stirring and scraping, it also drives the upper clear water filter to rotate, and the cleaning brush and spray nozzle clean the filter mesh. After running to the estimated cleaning time, it will change back to forward rotation. The floating foam on the horizontal surface of the filter is sucked out through a duct.

[0006] Mud and water and flocculants are continuously pumped into the mud and water flocculation and concentration tank for mixing and flocculation, and the clean water and mud are continuously separated. The clean water overflows and the mud sinks and concentrates, and is discharged from the outlet at the bottom of the cone of the mud and water flocculation and concentration tank and sent to the desludging machine for dehydration, and the cycle repeats. In order to maintain such a dynamic balance, it is also necessary to detect and control it.

[0007] To measure and control the operation of the mud flocculation and concentration tank, a monitoring camera is installed on the tank, and the monitoring camera is adjusted and fixed at a fixed angle to aim at the mud-water interface marking scale on the agitator scraper drive rod. The mud-water interface is analyzed through image recognition by AI, and this data is fed back to the PLC to control the frequency converter to drive the mud pump and dosing pump, so as to timely adjust the mud flocculant input amount and maintain a dynamic balance between mud and water in and out and flocculant addition. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 Schematic diagram of mud water flocculation concentration tank

[0009] Figure 2 Schematic diagram of reverse rotation to drive the filter to rotate DETAILED DESCRIPTION

[0010] A complete set of equipment for reducing the moisture content of the mud water entering the sludge dewatering machine, as shown in the attached Figure 1 As shown, a mud and water flocculation and concentration tank 1 is designed and manufactured, and its shape is an upper cylinder and a lower cone. An energy releaser 11 is installed at the top of the cylinder to the upper and lower intersection of the column and cone. A mud and water inlet 3 is opened on the bottom of the energy releaser 11. The bottom side of the energy releaser 11 is opened close to the intersection of the upper and lower columns and cones of the tank, and the mud and water that have been released flow into the opening. Flocculants are pumped into four flocculation agent inlets 4 on the cylindrical wall below the waist. A stirring scraper 2 is arranged in the mud and water flocculation and concentration tank 1. A scraper plate is arranged under the stirring scraper 2 to achieve full mixing of mud and water with flocculants, promote mud flocculation, and push and scrape the mud to prevent it from clogging. The flocculation and concentration mud outlet 5 at the lower part of the cone flows out mud, and the overflow port 6 at the top of the cylinder overflows Clean water flows up. In addition, in order to prevent fine mud particles from drifting and escaping from the overflow port, a clean water filter screen 7 is also provided. A cleaning brush 8 and a spray nozzle 9 are used to regularly clean the holes of the filter screen 7. The floating foam on the horizontal surface of the filter screen is sucked away through a conduit 10. The filtrate of the sludge dewatering machine is returned to the filtrate inlet (12) of the energy release device, so that the residual reagent in the filtrate is reused to participate in the flocculation of new mud water. The residual sludge in the filtrate is flocculated and concentrated into mud and then enters the sludge dewatering machine. The filtrate is clarified into clean water and overflowed and discharged. A monitoring camera 13 is installed above the mud water flocculation and concentration tank 1. The monitoring camera 13 is aimed at the clean water in the tank and the mud water interface below it at the marking scale on the driving rod of the stirring scraper 2.

[0011] The stirring scraper 2 rotates to fully mix the mud and water with the flocculant, promotes mud flocculation, and pushes and scrapes the mud to prevent it from clogging. The stirring scraper 2 rotates forward to stir and scrape normally; the stirring scraper 2 reverses at a fixed time. In addition to stirring and scraping, it also drives the upper clean water filter 7 to rotate, and the cleaning brush 8 and the spray nozzle 9 to clean the filter mesh. After running to the estimated cleaning time, it switches back to forward rotation.

[0012] To measure and control the operation of the mud flocculation and concentration tank, a monitoring camera 13 is installed on the tank, and the monitoring camera 13 is adjusted and fixed at an angle to align with the mud-water interface marking scale on the driving rod of the agitator scraper 2. The mud-water interface is analyzed through image recognition by AI, and this data is fed back to the PLC to control the frequency converter to drive the mud pump and dosing pump, so as to timely adjust the mud flocculant input amount and maintain a dynamic balance between mud inflow and outflow and flocculant addition.

[0013] It is understood that the present invention is described by some embodiments, and those skilled in the art can easily understand its principles. Various changes or equivalent replacements can be made to these features and embodiments without departing from the principles of the present invention. In addition, under the enlightenment of the present invention, these features and embodiments can be modified to adapt to specific situations without departing from the principles of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A complete set of equipment for reducing the moisture content of mud water entering a sludge dewatering machine, comprising a mud water flocculation and concentration tank (1), which has an upper cylindrical body and a lower cone body, an energy releaser (11) is installed at the top of the cylindrical body to the upper and lower intersections of the cylindrical body and the cone, a stirring scraper (2) and other auxiliary components are arranged in the flocculation and concentration tank (1), and intelligent technologies such as AI image recognition are used to measure and control the dynamic balance of mud water in and out, characterized in that: Before the muddy water enters the sludge dewatering machine, it first enters the energy release device (11) from the muddy water inlet (3) to release energy and then flows into the muddy water flocculation and concentration tank (1) at a slight pressure to add reagents for flocculation and concentration. After the muddy water flocculates, the mud sinks to the conical tank for concentration, water precipitates and floats, and the muddy water is separated into layers. The upper clear water passes through the upper clear water filter (7) and continuously flows out from the overflow port (6) at the top of the cylindrical tank. The floating foam on the horizontal surface of the filter is sucked away by the conduit (10). The mud is continuously discharged from the bottom (5) of the muddy water flocculation and concentration tank (1) and sent to the sludge dewatering machine for dehydration treatment, thereby reducing the moisture content of the removed mud cake.

2. A complete set of equipment for reducing the moisture content of the sludge entering the sludge dewatering machine according to claim 1, characterized in that: The stirring scraper (2) achieves full mixing of muddy water and flocculant by rotation, and pushes and scrapes mud to prevent it from clogging. The stirring scraper (2) rotates forward to stir and scrape normally; the stirring scraper (2) reverses at a fixed time, and in addition to stirring and scraping, it also drives the upper clean water filter to rotate, so that the cleaning brush (8) and the spray nozzle (9) clean the filter (7) holes. After running to the set time estimated to be clean, it switches back to forward rotation.

3. A complete set of equipment for reducing the moisture content of the sludge entering the sludge dewatering machine according to claim 1, characterized in that: The filtrate from the sludge dewatering machine is fed back to the filtrate inlet (12) of the energy release device, so that the residual reagent in the filtrate is reused to participate in the flocculation of new mud water. The residual sludge in the filtrate is flocculated and concentrated into mud and then enters the sludge dewatering machine. The filtrate is clarified into supernatant water and discharged overflowing.

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