Movable safe stirring device for sludge balance pool

Abstract

The utility model discloses a safe stirring device of a movable sludge balance tank. The device comprises a main stirrer in the center of the top of the sludge balance tank, auxiliary stirrers on two sides of the balance tank and channel steel rails, the auxiliary stirrer comprises a gear motor, a stirring shaft, a damping base, a movable driving device, a bearing and a stirring impeller; an output shaft of the gear motor is connected with the upper end of the stirring shaft, the stirring shaft sequentially penetrates through a through hole in the middle of the damping base and the bearing, and the movable driving device is slidably connected with the channel steel rail and rotationally connected with the damping base; the stirring shaft penetrates through the tank body and extends downwards; the lower end of the stirring shaft is connected with the stirring impeller; the auxiliary stirrer moves to three preset stirring sites along the channel steel track through a moving driving device, namely a track starting position, a track middle position and a track tail end; the device is simple in structure, on one hand, fluid circulation can be promoted, pool corner deposition and peripheral area sludge sedimentation can be effectively prevented, and on the other hand, energy consumption and equipment abrasion can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment, specifically to a mobile sludge balancing tank safety stirring device. Background Technology

[0002] In the production process of modern water treatment plants, maintaining uniform sludge concentration in the sludge balance tank and reducing sludge accumulation in the sludge balance tank has always been a crucial part of the effluent process. This is related to the efficiency of the sludge balance tank operation, the rationality of the reagent ratio, and the stability of the dewatering machine operation.

[0003] In the actual production of most water plants, due to problems such as the tank structure and the simple operation mode of the agitator, sludge balance tanks are prone to sludge accumulation in the corners, requiring frequent cleaning, which greatly reduces the operating efficiency of the sludge balance tank. At the same time, due to sludge accumulation and the operation mode of the agitator, the sludge concentration in the balance tank is not uniform, which can easily cause problems in subsequent processes. This phenomenon is common in small-sized sludge tanks.

[0004] In current production processes, some water plants have installed push-flow agitators in the same sludge tank to solve this problem. While this has alleviated the issues of sludge accumulation and uniformity of sludge concentration to some extent, it has also increased maintenance costs and difficulties. This is because the push-flow agitator needs to be installed near the bottom of the tank wall, and additional facilities and building structures such as external control cable trenches and maintenance wells need to be reserved. This method is not suitable for small-sized sludge tanks. Summary of the Invention

[0005] Purpose of the utility model: This utility model provides a mobile sludge balance tank safety stirring device that can solve the problem of sludge accumulation in dead corners of small-sized sludge balance tanks, achieve uniform mixing, low energy consumption, and low maintenance costs.

[0006] Technical Solution: This utility model provides a mobile sludge balancing tank safety stirring device, including a main mixer fixedly mounted at the center of the top of the sludge balancing tank, and an auxiliary mixer and a channel steel track; the top of the sludge balancing tank has troughs on both sides, and channel steel tracks are provided on both sides of the troughs; the auxiliary mixer includes a reduction motor, a stirring shaft, a shock-absorbing base, a moving drive device, a bearing, and a stirring impeller; the output shaft of the reduction motor is connected to the upper end of the stirring shaft; the shock-absorbing base has a through hole in the middle and a bearing at the bottom, and the stirring shaft passes through the through hole and the bearing in sequence; the moving drive device is slidably connected to the channel steel track and rotatably connected to the shock-absorbing base, so that the moving drive device drives the auxiliary mixer to move horizontally along the channel steel track; the stirring shaft passes through the trough and extends downward; the lower end of the stirring shaft is connected to the stirring impeller; the auxiliary mixer moves along the channel steel track to three preset stirring points through the moving drive device; the three stirring points are the beginning of the channel steel track, the middle position of the channel steel track, and the end of the channel steel track.

[0007] Furthermore, the mobile drive device includes a housing, a drive motor, a reducer, an upper traveling wheel, and a lower traveling wheel. The drive motor and reducer are fixedly connected inside the housing. The drive motor is connected to the input end of the reducer, and the output end of the reducer is connected to the upper traveling wheel. The upper and lower traveling wheels are located on one side of the housing and nested within a channel steel rail. The upper traveling wheel is rotatably connected to a shock-absorbing base. The nesting of the upper and lower traveling wheels within the channel steel rail gives the mobile drive device significant guiding and stability properties, and greatly reduces wear.

[0008] Furthermore, there are at least two sets of auxiliary mixers.

[0009] Furthermore, the mobile drive device comprises at least four sets, respectively located on both sides of the shock-absorbing base and rotatably connected to the shock-absorbing base; respectively nested on both sides of the channel steel rail and slidably connected to the channel steel rail.

[0010] Furthermore, the upper and lower driving wheels are made of wear-resistant material.

[0011] Furthermore, the stirring point at the beginning of the track and the stirring point at the end of the track are located in the corner of the sludge balancing tank.

[0012] Furthermore, the blades of the stirring impeller have an adjustable angle, which can enhance the stirring intensity and prevent sludge deposition.

[0013] Furthermore, the auxiliary mixer impeller is the same model as the main mixer impeller; using the same model of impeller enables more coordinated operation and reduces mutual interference. This consistency ensures the similarity of fluid dynamic effects, promoting more uniform fluid movement. In addition, the unified model simplifies maintenance and spare parts management, reduces operating costs, and improves the efficiency and reliability of the mixing system.

[0014] Compared to existing technologies, the advantages of this invention are as follows: This invention has a simple structure and is suitable for small-sized sludge balancing tanks. By setting auxiliary mixers on both sides of the sludge balancing tank and moving them horizontally along a track using a drive device, the auxiliary mixers are moved to their designated mixing points. These three mixing points—the beginning, middle, and end of the track—optimize fluid dynamics, ensuring efficient and uniform sludge treatment. The beginning and end points target areas prone to sedimentation in the tank corners, promoting fluid circulation and preventing sludge deposition. The middle point ensures uniform mixing of the fluid in the central area of ​​the tank, preventing sludge settling. These points work together to enhance fluid circulation, shear force, and turbulence, improving sludge suspension and mixing while reducing energy consumption and equipment wear. Furthermore, by incorporating a shock-absorbing base and bearings, the stability of the geared motor is improved, gear wear is reduced, and the equipment's lifespan is extended. Attached Figure Description

[0015] Figure 1 This is the front view of the present utility model;

[0016] Figure 2 This is a schematic diagram of the auxiliary mixer and mobile drive device in this utility model;

[0017] Figure 3 This is a top view of the present invention.

[0018] List of symbols in the attached diagram: 1-Main mixer, 2-Auxiliary mixer, 201-Gear motor, 202-Mixing shaft, 203-Shock-absorbing base, 204-Moving drive device, 2041-Shell, 2042-Upper traveling wheel, 2043-Lower traveling wheel, 205-Bearing, 206-Mixing impeller, 3-Channel steel rail, 4-Trench body, 5-Starting point of channel steel rail, 6-Middle position of channel steel rail, 7-End of channel steel rail. Detailed Implementation

[0019] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.

[0020] like Figure 1-3As shown, a mobile sludge balancing tank safety stirring device includes a main mixer 1 fixedly mounted at the center of the top of the sludge balancing tank, an auxiliary mixer 2, and a channel steel rail 3. The top of the sludge balancing tank has troughs 4 on both sides, and channel steel rails 3 are provided on both sides of the troughs 4. The auxiliary mixer 2 includes a reduction motor 201, a stirring shaft 202, a shock-absorbing base 203, a moving drive device 204, a bearing 205, and a stirring impeller 206. The output shaft of the reduction motor 201 is connected to the upper end of the stirring shaft 202. The shock-absorbing base 203 has a through hole in the middle, and a bearing 205 is provided at the bottom of the shock-absorbing base. 5. The stirring shaft 202 passes through the through hole and the bearing 205 in sequence; the moving drive device 204 is slidably connected to the channel steel rail 3 and rotatably connected to the shock-absorbing base 203, so that the moving drive device 204 drives the auxiliary mixer 2 to move horizontally along the channel steel rail 3; the stirring shaft 202 passes through the tank 4 and extends downward; the lower end of the stirring shaft 202 is connected to the stirring impeller 206; the auxiliary mixer 2 moves along the channel steel rail 3 to three preset stirring positions through the moving drive device 204; the three stirring positions are the starting point 5 of the channel steel rail, the middle position 6 of the channel steel rail, and the end point 7 of the channel steel rail.

[0021] like Figure 2 As shown, the mobile drive device 204 includes a housing 2041, a drive motor, a reducer, an upper traveling wheel 2042, and a lower traveling wheel 2043. The drive motor and the reducer are fixedly connected inside the housing 2041. The drive motor is connected to the input end of the reducer, and the output end of the reducer is connected to the upper traveling wheel 2042. The upper traveling wheel 2042 and the lower traveling wheel 2043 are located on one side of the housing 2041 and nested in the channel steel rail 3. The upper traveling wheel 2042 is rotatably connected to the shock-absorbing base 203.

[0022] like Figure 1-3As shown, specifically, a main mixer 1 is fixedly mounted in the center of the top of the sludge balancing tank. Tanks 4 are located on both sides of the top of the tank, maintaining a safe distance between the tanks 4 and the main mixer 1. The dimensions of the tanks 4 are slightly larger than the diameter of the mixing shaft. Channel steel rails 3 are provided on both sides of the tanks 4. The output shaft of the reduction motor 201 is connected to the upper end of the mixing shaft 202. The mixing shaft 202 passes through the through hole in the middle of the shock-absorbing base 203 and the bearing 205. The upper traveling wheel 2042 and the lower traveling wheel 2043 are nested within the channel steel rails 3. The upper traveling wheel 2042 is rotatably connected to the shock-absorbing base 203. The mixing shaft 202 passes through the tank 4 and extends downwards. The lower end of the mixing shaft 202 is connected to the mixing impeller 206. During installation, it is essential to ensure that the centers of the reduction motor 201, reduction base 203, bearing 205, mixing shaft 202, and mixing impeller 206 are precisely aligned with the center point of the tank 4, forming a straight line in the same vertical plane. This ensures the smooth operation of the auxiliary mixer 2 and reduces mechanical wear. After installation, first run the equipment in place without load to check if the stirring shaft 202 and stirring impeller 206 are shaking. If shaking occurs, first adjust the adjusting bolts of the shock-absorbing base 203. If the problem persists, check if there is a problem with the equipment connection. Run the equipment without load for several hours without any other abnormal noises or shaking before it can be put into operation.

[0023] With the main mixer 1 operating, the auxiliary mixer 2 and the mobile drive device 204 are connected to the power supply. The geared motor 201 receives power and starts running, its output shaft driving the mixing shaft 202 to rotate. The mixing shaft 202 passes through the open hole in the middle of the shock-absorbing base 203 and is supported by the bearing 205 at the bottom of the shock-absorbing base 203, ensuring smooth rotation. At the same time, the drive motor receives power and starts running. After the speed is reduced and the torque is increased by the reducer, it is transmitted to the upper traveling wheel 2042. The upper traveling wheel 2042 is rotatably connected to the shock-absorbing base 203, thereby driving the auxiliary mixer 2 to move horizontally along the channel steel track 3. The lower traveling wheel 2043 is also nested in the channel steel track 3, providing support and stability. The auxiliary mixer 2 moves to the preset mixing positions, specifically: the beginning of the channel steel track 5, the middle position of the channel steel track 6, and the end of the channel steel track 7. At these positions, the mixing impeller 206 begins mixing, promoting the mixing and suspension of sludge in the corners and around the edges. The mixing time is determined according to the process requirements. Meanwhile, to ensure the stability of the mobile drive unit 204 during driving, it can stop and decelerate to reduce its operating speed.

[0024] The mobile sludge balancing tank safety stirring device of this utility model can be controlled remotely automatically or manually on site.

[0025] It should be noted that the above content merely illustrates the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. For those skilled in the art, various improvements and modifications can be made without departing from the principle of the present invention, and all such improvements and modifications fall within the scope of protection of the claims of the present invention.

Claims

1. A mobile sludge balancing tank safety stirring device, comprising a main mixer (1) fixedly mounted at the center of the top of the sludge balancing tank, characterized in that: It also includes an auxiliary mixer (2) and a channel steel rail (3); the top of the sludge balance tank has a trough (4) on both sides, and the trough (4) is provided with a channel steel rail (3) on both sides; the auxiliary mixer (2) includes a geared motor (201), a stirring shaft (202), a shock-absorbing base (203), a moving drive device (204), a bearing (205), and a stirring impeller (206); the output shaft of the geared motor (201) is connected to the upper end of the stirring shaft (202); the shock-absorbing base (203) has a through hole in the middle, and a bearing (205) is provided at the bottom of the shock-absorbing base, and the stirring shaft (202) passes through the through hole and the bearing (206) in sequence. 5); The mobile drive device (204) is slidably connected to the channel steel rail (3) and rotatably connected to the shock-absorbing base (203), so that the mobile drive device (204) drives the auxiliary mixer (2) to move horizontally along the channel steel rail (3); the stirring shaft (202) passes through the tank (4) and extends downward; the lower end of the stirring shaft (202) is connected to the stirring impeller (206); the auxiliary mixer (2) moves along the channel steel rail (3) to three preset stirring positions through the mobile drive device (204); the three stirring positions are the starting point (5) of the channel steel rail, the middle position (6) of the channel steel rail, and the end point (7) of the channel steel rail.

2. The mobile sludge balancing tank safety stirring device according to claim 1, characterized in that: The auxiliary mixer (2) consists of at least two sets.

3. The mobile sludge balancing tank safety stirring device according to claim 1, characterized in that: The mobile drive device (204) includes a housing (2041), a drive motor, a reducer, an upper traveling wheel (2042), and a lower traveling wheel (2043); the drive motor and the reducer are fixedly connected inside the housing (2041); the drive motor is connected to the input end of the reducer, and the output end of the reducer is connected to the upper traveling wheel (2042); the upper traveling wheel (2042) and the lower traveling wheel (2043) are located on one side of the housing (2041) and nested in the channel steel rail (3); the upper traveling wheel (2042) is rotatably connected to the shock-absorbing base (203).

4. The mobile sludge balancing tank safety stirring device according to claim 3, characterized in that: The upper driving wheel (2042) and the lower driving wheel (2043) are made of wear-resistant material.

5. The mobile sludge balancing tank safety stirring device according to claim 1, characterized in that: The stirring points at the beginning (5) and end (7) of the channel steel track are located at the corners of the sludge balance tank.

6. The mobile sludge balancing tank safety stirring device according to claim 1, characterized in that: The blades of the stirring impeller (206) have an adjustable angle.

7. The mobile sludge balancing tank safety stirring device according to claim 1, characterized in that: The impeller (206) is the same model as the impeller of the main mixer (1).

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