An automatic sludge cleaning device for a ring cooler water tank

Abstract

This utility model discloses an automatic sludge cleaning device for a ring-type cooler water tank, including a water tank and a sealing plate disposed within the water tank. Both the water tank and the sealing plate are annular. A sludge stirring mechanism and a sludge pumping mechanism are sequentially arranged within the water tank. The sludge stirring mechanism includes a support and a motor. The output shaft of the motor is connected to a rotating shaft, on which multiple sludge stirring plates are evenly distributed around the circumference. A disc-shaped brush is disposed at the lower end of the rotating shaft. The sludge pumping mechanism includes a sludge collecting hood and a sludge conveying pipe. The sludge collecting hood has a rectangular conical cross-section, with its large end facing the direction of the sludge stirring mechanism. The sludge conveying pipe is connected to the small end of the sludge collecting hood and is fixed to the sealing plate. A sludge pump is disposed on the sludge conveying pipe, and the end of the sludge conveying pipe is connected to a sedimentation and filtration tank disposed outside the water tank. A water supply pipe is disposed above the water tank, and the clarified water outlet of the sedimentation and filtration tank is connected to the water supply pipe via a pipeline. In summary, this utility model has the advantages of high working efficiency, online cleaning capability, and water conservation.

Description

Technical Field

[0001] This utility model relates to the technical field of sludge cleaning equipment for annular cooling water tanks, specifically to an automatic sludge cleaning device for annular cooling water tanks. Background Technology

[0002] The novel liquid-sealed annular cooler plays a crucial role in cooling and waste heat recovery during sintering production. The upper water tank of the cooler is connected to a trolley and moves with the cooler, while the lower rotating device inserts a sealing blade into a fixed liquid-sealed water tank. Water is injected into both tanks to a height exceeding the air pressure, thus sealing the flue gas. However, during operation, fine particles and dust inevitably enter the water tank along with the flue gas. When these particles and dust accumulate to a certain thickness as sludge, significant frictional resistance arises between the sealing blade and the sludge, affecting the cooler's normal operation. This is especially problematic when restarting under load after a shutdown, often resulting in failure to start normally. Furthermore, the high specific gravity of the flue gas dust causes the sludge to harden into solid lumps over time, making it difficult to remove. Therefore, to ensure the normal operation of the annular cooler, it is necessary to clean the sludge from its water tank.

[0003] Currently, the sludge in the water tank is mostly cleaned manually, which has the following problems: First, it is time-consuming and labor-intensive, resulting in high worker fatigue, low cleaning efficiency, and safety hazards due to working below the annular cooler; second, cleaning must be carried out while the machine is stopped, affecting normal production operations; and third, the water in the tank is often cleaned along with the sludge, leading to a reduction in water volume and waste of water resources. Therefore, it is objectively necessary to develop an automatic sludge cleaning device for the annular cooler water tank that is highly efficient, can perform online cleaning, and saves water resources. Utility Model Content

[0004] The purpose of this invention is to provide an automatic mud cleaning device for the water tank of an annular cooler that has high working efficiency, can achieve online cleaning, and saves water resources.

[0005] The purpose of this utility model is achieved as follows: It includes a water tank and a sealing plate disposed within the water tank. Both the water tank and the sealing plate are annular. A sludge stirring mechanism and a sludge pumping mechanism are sequentially arranged within the water tank. The sludge stirring mechanism includes a support and a motor mounted on the support. The output shaft of the motor passes through the support and is connected to a rotating shaft. Multiple sludge stirring plates are evenly distributed around the circumference of the rotating shaft. A disc-shaped brush is disposed at the lower end of the rotating shaft, with the bristles of the disc-shaped brush contacting the bottom of the water tank. The sludge pumping mechanism includes a sludge collecting hood and a sludge conveying pipe. The sludge collecting hood has a rectangular conical cross-section, with its large end facing the direction of the sludge stirring mechanism. The sludge conveying pipe is connected to the small end of the sludge collecting hood and is fixed to the sealing plate. A sludge pump is disposed on the sludge conveying pipe, and the end of the sludge conveying pipe is connected to a sedimentation and filtration tank disposed outside the water tank. A water supply pipe is disposed above the water tank, and the clarified water outlet of the sedimentation and filtration tank is connected to the water supply pipe via a pipeline.

[0006] Furthermore, the stirring plates are arranged in multiple layers on the rotating shaft, and adjacent layers of stirring plates are staggered on the circumference.

[0007] Furthermore, a slide rail is vertically installed on the sealing plate, the support is slidably mounted on the slide rail, and a drive mechanism that can drive the support to slide up and down is installed on the sealing plate.

[0008] Furthermore, the sealing plate is located near the inside of the water tank, and the axis of the rotating shaft is located on the center line of the water tank.

[0009] Furthermore, the bristles of the disc brush are made of a wear-resistant, flexible material.

[0010] Furthermore, a water level detector is installed above the water tank.

[0011] Furthermore, an arc-shaped mud baffle is installed above the mud stirring plate, and a sleeve is installed on the arc-shaped mud baffle. The sleeve is movably fitted on the rotating shaft, and the rear side of the arc-shaped mud baffle is connected to the top of the large port of the mud collection hood.

[0012] Furthermore, overflow prevention rings are installed on both the inner and outer side panels of the water tank.

[0013] Furthermore, a sludge scraper is installed at the bottom of the large port of the sludge collection hood, with the lower end of the scraper contacting the bottom of the water tank.

[0014] This utility model is installed on a sealing plate and utilizes the relative rotation between the sealing plate and the water tank to clean the sludge deposited at the bottom of the water tank. During operation, the motor is started, which drives the rotating shaft to rotate. The rotating shaft drives the sludge stirring plate and the disc brush to rotate. The sludge stirring plate agitates the sludge deposited near the bottom of the water tank, causing the sludge to disperse and mix with the water to form sewage. At the same time, the disc brush brushes away the sludge deposited at the bottom of the water tank, similarly dispersing the sludge and mixing it with the water to form sewage. Subsequently, as the relative position between the water tank and the sealing plate moves, the sludge collection hood reaches the sewage position, and the sludge pump is started. The sludge pump creates a negative pressure in the sludge conveying pipe and the sludge collection hood. The sewage passes through the sludge collection hood and the sludge conveying pipe and is sent to the sedimentation and filtration tank. In the sedimentation and filtration tank, sedimentation and filtration operations are carried out to obtain clarified water, which is then returned to the water tank for continued use. In this invention, rotating mud-stirring plates and disc brushes are used to agitate the sludge deposited at the bottom of the water tank, mixing the sludge into the water to obtain easily pumpable wastewater. Then, a sludge collection hood collects the wastewater and sends it to a sedimentation and filtration tank for treatment. The entire process requires no manual intervention, avoiding strenuous labor and achieving automatic sludge removal. This significantly improves sludge removal efficiency and eliminates the safety hazards associated with manual operation, making it safer and more reliable. Secondly, the entire cleaning process can be carried out while the annular cooler is running normally, without stopping the machine. This online sludge removal improves the efficiency of the annular cooler and does not affect normal production operations. Finally, this invention uses a sedimentation and filtration tank to settle and filter the wastewater, separating the water from the sludge. The water is then returned to the water tank for reuse, achieving water resource recycling. This significantly reduces water waste and improves water utilization. Simultaneously, appropriate water replenishment via a water supply pipe maintains a stable water level in the tank, ensuring a good seal. In summary, this utility model has the advantages of high working efficiency, online cleaning capability, and water conservation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of AA;

[0017] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure of BB;

[0018] In the diagram: 1-Water tank, 2-Sealing plate, 3-Support, 4-Motor, 5-Rotating shaft, 6-Sludge stirring plate, 7-Disc brush, 8-Sludge collection cover, 9-Sludge conveying pipe, 10-Sludge pump, 11-Sedimentation and filtration tank, 12-Water level detector, 13-Arc-shaped baffle plate, 14-Inner side plate, 15-Outer side plate, 16-Overflow prevention ring plate, 17-Sludge scraper. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings, but this description is not intended to limit the present invention in any way. Any changes or improvements made based on the present invention shall fall within the protection scope of the present invention.

[0020] like Figures 1-3 As shown, this utility model includes a water tank 1 and a sealing plate 2 disposed within the water tank 1. Both the water tank 1 and the sealing plate 2 are annular. A mud stirring mechanism and a mud pumping mechanism are sequentially disposed within the water tank 1. The mud stirring mechanism includes a support 3 and a motor 4 mounted on the support 3. The output shaft of the motor 4 passes through the support 3 and is connected to a rotating shaft 5. Multiple mud stirring plates 6 are evenly distributed around the circumference of the rotating shaft 5. A disc-shaped brush 7 is disposed at the lower end of the rotating shaft 5. The bristles of the disc-shaped brush 7 are in contact with the bottom of the water tank 1. The mud pumping mechanism includes a mud collecting cover 8 and a mud conveying pipe 9. The mud collecting cover 8 is a conical structure with a rectangular cross-section. The large end of the mud collecting cover 8 faces the direction of the mud stirring mechanism. The mud conveying pipe 9 is connected to the small end of the mud collecting cover 8 and is fixed on the sealing plate 2. A mud pump 10 is disposed on the mud conveying pipe 9. The end of the mud conveying pipe 9 is connected to a sedimentation and filtration tank 11 disposed outside the water tank 1. A water supply pipe is disposed above the water tank 1. The clarified water outlet of the sedimentation and filtration tank 11 is connected to the water supply pipe through a pipeline.

[0021] This utility model is installed on the sealing plate 2. Utilizing the relative rotation between the sealing plate 2 and the water tank 1, it cleans the sludge deposited at the bottom of the water tank 1. During operation, the motor 4 is started, which drives the rotating shaft 5 to rotate. The rotating shaft 5 drives the sludge stirring plate 6 and the disc brush 7 to rotate. The sludge stirring plate 6 stirs the sludge deposited near the bottom of the water tank 1, causing the sludge to disperse and mix into the water to form sewage. At the same time, the disc brush 7 brushes away the sludge deposited at the bottom of the water tank 1, similarly dispersing the sludge and mixing it into the water to form sewage. Subsequently, as the relative position between the water tank 1 and the sealing plate 2 moves, the sludge collection hood 8 reaches the sewage position, and the sludge pump 10 is started. The sludge pump 10 creates a negative pressure in the sludge conveying pipe 9 and the sludge collection hood 8. The sewage passes through the sludge collection hood 8 and the sludge conveying pipe 9 and is sent to the sedimentation and filtration tank 11. In the sedimentation and filtration tank 11, sedimentation and filtration operations are carried out to obtain clarified water, which is then returned to the water tank 1 for continued use.

[0022] In this invention, the sludge deposited at the bottom of the water tank 1 is first stirred by a rotating slurry plate 6 and a disc brush 7, causing the sludge to mix with the water, resulting in wastewater that is easy to pump. Then, the wastewater is collected in time by a sludge collection hood 8 and sent to a sedimentation and filtration tank 11 for treatment. The entire process does not require manual intervention, avoiding the high-intensity labor of workers and realizing automatic sludge cleaning. It can quickly complete the sludge cleaning, improve the efficiency of sludge cleaning, and avoid the safety hazards of manual operation, making it safer and more reliable. Secondly, the entire cleaning process can be carried out while the annular cooler is running normally, without stopping the machine, realizing online cleaning of sludge in the water tank 1, improving the working efficiency of the annular cooler, and not affecting the normal production operation of the enterprise. Finally, in this invention, the sedimentation and filtration tank 11 is used to settle and filter the wastewater, separating the water from the sludge. The water is then returned to the water tank 1 for reuse, realizing the recycling of water resources, which can significantly reduce water waste and improve the utilization rate of water resources. At the same time, water is appropriately replenished by a water supply pipe to maintain a stable water volume in the water tank without affecting the sealing effect.

[0023] Preferably, in order to improve the stirring efficiency of sludge, the stirring plates 6 are arranged in a multi-layered structure on the rotating shaft 5, and adjacent stirring plates 6 are staggered on the circumference.

[0024] A vertical slide rail is installed on the sealing plate 2, and the support 3 is slidably mounted on the slide rail. A drive mechanism is installed on the sealing plate 2 to drive the support 3 to slide up and down. The drive mechanism is existing technology and can drive the support 3 to move up and down. During operation, the bristles on the disc brush 7 will wear down and shorten, thus failing to achieve the goal of brushing away sludge. At this time, the support 3 can be lowered, and then the various components on the support 3 can be lowered to reduce the height of the disc brush 7, so that its bristles are always in contact with the bottom of the water tank 1, ensuring the cleaning effect of sludge. When sludge cleaning is not performed, the height of the disc brush 7 and the mud stirring plate 6 can be appropriately raised by the drive mechanism, and the motor 4 and the mud pump 10 can be turned off. At the same time, in this invention, the mud collection cover 8 can also be a liftable structure, which makes it easy to appropriately raise the height of the mud collection cover 8 when sludge cleaning is not performed, so that dust can be deposited at the bottom of the water tank 1 for easy cleaning.

[0025] The sealing plate 2 is located near the inner side of the water tank 1, and the axis of the rotating shaft 5 is located on the center line of the water tank 1. The above arrangement makes the working surface width of the mud stirring plate 6 and the disc brush 7 cover the width of the water tank 1, preventing the occurrence of dead zones in cleaning and improving the cleaning effect of sludge.

[0026] The bristles of the disc brush 7 are made of a wear-resistant and flexible material. The disc brush 7 is used to remove the sludge deposited at the bottom of the sink 1. With prolonged use, the disc brush 7 may wear down the bottom of the sink 1, thereby reducing the service life of the sink 1. To avoid this problem, the bristles of the disc brush 7 are made of a wear-resistant and flexible material, which reduces the stiffness of the bristles while still removing the sludge, thus preventing damage to the bottom of the sink 1.

[0027] A water level detector 12 is installed above the water tank 1. The water level detector 12 is an existing instrument used to detect the water level in the water tank 1 in real time. Although this utility model has sedimented and filtered the discharged sewage and separated the sludge from the water, the separated sludge inevitably still contains a small amount of water. This will cause water loss in the entire water circulation system, thereby reducing the amount of water in the water tank 1 and lowering the water level. This may affect the sealing effect of the ring cooler. Therefore, the water level detector 12 is installed to detect the water level in the water tank 1 so that new water can be added in time when the water level drops.

[0028] An arc-shaped baffle plate 13 is installed above the sludge stirring plate 6. A sleeve is installed on the arc-shaped baffle plate 13, and the sleeve is movably fitted onto the rotating shaft 5. The rear side of the arc-shaped baffle plate 13 is connected to the top of the large port of the sludge collection hood 8. The working principle of this device is to stir up the sludge at the bottom of the water tank 1, causing it to mix with the water to form sewage. During this process, the sewage will flow upward quickly, which has two disadvantages: first, it will mix with the upper water layer and then settle again, reducing the cleaning effect of the sludge; second, it will exceed the sludge collection range of the sludge collection hood 8, so not all the sewage can be pumped out, which also reduces the efficiency of sludge removal. The arc-shaped baffle plate 13 is always located above the sludge stirring plate 6, separating the generated sewage from the upper water in the water tank 1, preventing the sewage from spreading upward, and limiting the height of sewage diffusion, so that all sewage can flow smoothly into the large port of the sludge collection hood 8, improving the sewage pumping effect.

[0029] An anti-overflow ring plate 16 is provided on the upper part of the inner side plate 14 and the outer side plate 15 inside the water tank 1. When the present invention is in operation, since the stirring plate 6 and the disc brush 7 are in a rotating state, they will disturb the water in the water tank 1, and the water level may fluctuate. The water in the water tank 1 may overflow from the upper part of the inner side plate 14 and the outer side plate 15, causing pollution to the surrounding environment and waste of water resources. To avoid this problem, the anti-overflow ring plate 16 is provided to limit the water level and prevent water from overflowing.

[0030] The bottom of the eight ports of the sludge collection cover is inclined with a scraper 17, the lower end of which contacts the bottom of the water tank 1. In this invention, the sludge deposited at the bottom of the water tank 1 is brushed off by a disc brush 7. In actual use, it was found that after brushing with the disc brush 7, a very small amount of stubborn sludge still adheres to the bottom of the water tank 1. At this time, it can be scraped off by the scraper 17 to improve the cleaning effect of the sludge.

Claims

1. A kind of automatic mud cleaning device of ring cooling machine water tank, including water tank (1) and the sealing plate (2) being set in water tank (1), the water tank (1) and sealing plate (2) are all circular ring, it is characterized in that: The water tank (1) is equipped with a mud stirring mechanism and a mud pumping mechanism in sequence. The mud stirring mechanism includes a support (3) and a motor (4) mounted on the support (3). The output shaft of the motor (4) passes through the support (3) and is connected to a rotating shaft (5). Multiple mud stirring plates (6) are evenly distributed around the circumference of the rotating shaft (5). A disc-shaped brush (7) is provided at the lower end of the rotating shaft (5). The bristles of the disc-shaped brush (7) are in contact with the bottom of the water tank (1). The mud pumping mechanism includes a mud collecting cover (8) and a mud conveying pipe (9). The mud collecting cover (8) 8) It is a cone-shaped structure with a rectangular cross section. The large port of the mud collection cover (8) faces the direction of the mud stirring mechanism. The mud conveying pipe (9) is connected to the small port of the mud collection cover (8). The mud conveying pipe (9) is fixed on the sealing plate (2). A mud pump (10) is installed on the mud conveying pipe (9). The end of the mud conveying pipe (9) is connected to the sedimentation filter tank (11) located outside the water tank (1). A water supply pipe is installed above the water tank (1). The clarified water outlet of the sedimentation filter tank (11) is connected to the water supply pipe through a pipeline.

2. The automatic mud cleaning device for water tank of ring cooling machine according to claim 1, characterized in that: The mud-stirring plates (6) are arranged in a multi-layered structure on the rotating shaft (5), and adjacent mud-stirring plates (6) are staggered on the circumference.

3. The automatic mud cleaning device for water tank of ring cooling machine according to claim 1, characterized in that: A slide rail is vertically arranged on the sealing plate (2), and the support (3) is slidably installed on the slide rail. A drive mechanism that can drive the support (3) to slide up and down is installed on the sealing plate (2).

4. The automatic mud cleaning device for water tank of ring cooling machine according to claim 1, characterized in that: The sealing plate (2) is located near the inside of the water tank (1), and the axis of the rotating shaft (5) is located on the center line of the water tank (1).

5. The automatic mud cleaning device for water tank of ring cooling machine according to claim 1, characterized in that: The bristles of the disc brush (7) are made of a wear-resistant and flexible material.

6. The automatic sludge cleaning device for the water tank of an annular cooler according to claim 1, characterized in that: A water level detector (12) is installed above the water tank (1).

7. The automatic sludge cleaning device for the water tank of an annular cooler according to claim 1, characterized in that: An arc-shaped mud baffle (13) is provided above the mud stirring plate (6). A sleeve is provided on the arc-shaped mud baffle (13). The sleeve is movably fitted on the rotating shaft (5). The rear side of the arc-shaped mud baffle (13) is connected to the top of the large port of the mud collection cover (8).

8. The automatic sludge removal device for the water tank of an annular cooler according to claim 1, characterized in that: An anti-overflow ring plate (16) is provided on the upper part of the inner side plate (14) and the outer side plate (15) of the water tank (1).

9. The automatic sludge cleaning device for the water tank of an annular cooler according to claim 1, characterized in that: The bottom of the large port of the mud collection cover (8) is provided with a mud scraper (17) at an angle, and the lower end of the mud scraper (17) is in contact with the bottom of the water tank (1).

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