A sand removal device based on aeration tail gas

Abstract

The utility model belongs to the technical field of aeration grit chamber, specifically relates to a sand removal device of sand removal based on aeration tail gas, including pool body, the inside central of pool body is equipped with retaining wall, and the inside space of pool body is divided into left and right two processing cavities by retaining wall, and two aeration mechanisms are arranged respectively in the bottom side of two processing cavities inside, and bridge type displacement mechanism is arranged in the top of pool body, and bridge type displacement mechanism top is equipped with sand suction mechanism, and the installation frame is fixedly installed in the upside inside processing cavity, and the installation frame bottom is fixedly installed with assembly plate on the side close to retaining wall, and the inside fixed mounting of installation frame is equipped with the closed plate that is arranged side by side with closed band, and two sand suction pipes one end respectively extend into two closed bands inside and fixedly communicate and are equipped with two L -shaped connecting pipes, and two L -shaped connecting pipes lower extreme respectively extend into two processing cavities inside bottom side, the utility model discloses simple structure reasonable in design, and the opening of aeration grit chamber can be closed when using, and the working environment is avoided to be influenced by the stench exposure.

Description

Technical Field

[0001] This utility model belongs to the field of aerated sedimentation technology, specifically relating to a sedimentation tank sand removal device based on aeration tail gas. Background Technology

[0002] Aerated grit chambers are facilities used in wastewater treatment. Their principle is to suspend organic particles in wastewater through aeration. The suspended sand particles rub against each other and withstand the shearing force generated by aeration, effectively removing organic pollutants attached to the sand. Under the action of centrifugal force, the sand particles are thrown against the inner wall of the aerated grit chamber due to inertia and then settle into the sand collection trough. Current technology typically uses a bridge-type sand suction machine to pump sand from the collection trough. However, to facilitate the movement of the bridge-type sand suction machine, the aerated grit chamber is usually an open structure. Therefore, the odor generated during aeration can be released to the outside, impacting the surrounding environment. This requires improvement. Utility Model Content

[0003] The purpose of this invention is to provide a sand removal device for a sedimentation tank based on aeration tail gas, which can seal the opening of the aeration sedimentation tank during use to prevent odor from leaking out and affecting the working environment.

[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0005] A sand removal device for sedimentation tanks based on aeration tail gas, comprising:

[0006] The pool body has a baffle wall in the center of the pool body, which divides the internal space of the pool body into two processing chambers on the left and right sides. The pool body has two water inlets and two water outlets on the front and rear sides respectively.

[0007] There are two aeration mechanisms, which are respectively located on the bottom side inside the two processing chambers;

[0008] A bridge-type displacement mechanism is installed at the top of the pool body. A sand suction mechanism is provided at the top of the bridge-type displacement mechanism, and two sand suction pipes are installed at the suction end of the sand suction mechanism.

[0009] The enclosure mechanism is provided in two parts, which are respectively installed on the upper side of the two processing chambers. Each enclosure mechanism includes an installation frame, which is fixedly installed on the upper side of the processing chamber. An assembly plate is fixedly installed on the bottom of the installation frame near the retaining wall. Two drive rollers are rotatably mounted on the side of the assembly plate away from the retaining wall. The two drive rollers jointly drive the enclosure belt. An enclosure plate arranged parallel to the enclosure belt is fixedly installed inside the installation frame.

[0010] One end of each of the two sand suction pipes extends into the interior of two closed strips and is fixedly connected to two L-shaped connecting pipes. The lower ends of the two L-shaped connecting pipes extend into the bottom of the interior of the two processing chambers.

[0011] As a preferred technical solution, the bridge displacement mechanism includes two fixed platforms, which are respectively fixedly installed on the left and right sides of the pool body. Each of the two fixed platforms has a through groove on its upper side. Lead screws are rotatably mounted on the inner walls of the front and rear sides of the two through grooves. Sliders are slidably mounted inside the two through grooves. The two sliders are respectively driven and connected to the two lead screws. An assembly platform is fixedly installed on the upper end of the two sliders. The sand suction mechanism is installed on the top of the assembly platform. Motors are fixedly installed on the front side of each of the two fixed platforms. The output shafts of the two motors are driven and connected to the two lead screws through a gearbox. The two motors are electrically connected to an external control terminal.

[0012] As a preferred technical solution, the sand suction mechanism includes a sand suction pump, which is fixedly installed on the top of the assembly platform. An assembly pipe is fixedly installed at the suction end of the sand suction pump, and two sand suction pipes are respectively fixedly connected and assembled on the left and right sides of the bottom of the assembly pipe. A discharge pipe is installed at the discharge end of the sand suction pump.

[0013] As a preferred technical solution, sealing strips are provided on both the front and rear sides inside the mounting frame, and the two sealing strips are used to fill the gap between the sealing strip and the mounting frame.

[0014] As a preferred technical solution, an exhaust pipe is provided on the rear side of the top of the enclosed plate, and one end of the exhaust pipe is connected to an external air purification device.

[0015] As a preferred technical solution, the aeration mechanism includes a plurality of aeration pipes, which are arranged obliquely and assembled on the side of the treatment chamber near the retaining wall. A plurality of aeration heads are arranged on the top of each of the aeration pipes. A connecting pipe is fixedly connected between each pair of adjacent aeration pipes. An air inlet pipe is installed inside the retaining wall. An air inlet pipe is fixedly installed around the periphery of the air inlet pipe. One end of the air inlet pipe is fixedly connected to one of the aeration pipes, and one end of the air inlet pipe is fixedly connected to the exhaust end of an external aeration device.

[0016] The beneficial effects of this utility model are:

[0017] 1. High efficiency in sand removal: The inclined aeration pipes and aeration heads in the aeration mechanism enhance the aeration effect and accelerate sand and gravel sedimentation in combination with hydraulic action; the bridge displacement mechanism drives the sand suction pipe to move in the full range, and works with the sand suction pump to achieve thorough sand removal and improve cleaning efficiency.

[0018] 2. Good odor control: The sealing strip, sealing plate and sealing strip of the enclosure mechanism form a multi-layer seal to reduce leakage of aeration exhaust gas; the exhaust pipe is connected to an air purification device, and the gas is discharged after purification to avoid environmental pollution.

[0019] 3. High degree of automation: The motor-driven bridge displacement mechanism enables automatic movement of the sand suction pipe without manual intervention; the external control end can synchronously control the linkage of aeration, sand suction and sealing belt, reducing the intensity of manual labor.

[0020] 4. Excellent structural synergy: The dynamic sealing design of the sand suction pipe and the sealing belt ensures that the sand suction pipe can move freely while maintaining the sealing effect. Attached Figure Description

[0021] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a top view of the structure of this utility model;

[0024] Figure 3 This is a front view structural diagram of the present utility model;

[0025] Figure 4 This is a side view of the structure of this utility model;

[0026] Figure 5 This is a partial structural schematic diagram of the present invention.

[0027] Reference numerals: 1. Pool body; 111. Baffle wall; 12. Treatment chamber; 2. Aeration mechanism; 21. Aeration pipe; 22. Aeration head; 3. Bridge displacement mechanism; 31. Sand suction mechanism; 32. Sand suction pipe; 33. Fixed platform; 34. Through groove; 35. Lead screw; 36. Slider; 37. Assembly platform; 38. Motor; 321. Sand suction pump; 4. Sealing mechanism; 41. Mounting frame; 42. Assembly plate; 43. Sealing strip; 44. L-shaped connecting pipe; 401. Sealing strip; 441. Exhaust pipe; 442. Sealing plate. Detailed Implementation

[0028] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] like Figures 1-5 As shown, this utility model discloses a sand removal device for a sedimentation tank based on aeration tail gas, comprising:

[0030] The pool body 1 has a baffle wall 111 in the center of the pool body 1, which divides the internal space of the pool body 1 into two treatment chambers 12 on the left and right sides. The pool body 1 has two inlets and two outlets on the front and rear sides respectively.

[0031] There are two aeration mechanisms 2, which are respectively located on the bottom side of the two treatment chambers 12. Specifically, the aeration mechanism 2 includes several aeration pipes 21, which are arranged obliquely and assembled on the side of the treatment chamber 12 near the baffle wall 111. Several aeration heads 22 are arranged on the top of each aeration pipe 21. A connecting pipe is fixedly connected between each pair of adjacent aeration pipes 21. An air inlet pipe is installed inside the baffle wall 111. An air inlet pipe is fixedly installed around the air inlet pipe. One end of the air inlet pipe is fixedly connected to one of the aeration pipes 21, and one end of the air inlet pipe is fixedly connected to the exhaust end of the external aeration device.

[0032] During use, when treating sewage, sewage is discharged through the inlet and then discharged through the outlet. During this period, after the external aeration device is started, the external aeration device discharges air through the air inlet pipe into several aeration pipes 11 on the left and right sides for aeration. The aeration combined with the dual effects of hydraulic sedimentation and aeration stirring can effectively make the sand and gravel settle to the bottom of the treatment chamber 12. The effect is good. With the help of two sealing mechanisms 4, it can prevent a large amount of odor from being emitted to the outside during aeration and affecting the working environment.

[0033] A bridge-type displacement mechanism 3 is installed on the top of the pool body 1. A sand suction mechanism 31 is provided on the top of the bridge-type displacement mechanism 3. The sand suction mechanism 31 includes a sand suction pump 321, which is fixedly installed on the top of the assembly platform 37. An assembly pipe is fixedly installed at the suction end of the sand suction pump 321. Two sand suction pipes 32 are fixedly connected and assembled on the left and right sides of the bottom of the assembly pipe. A discharge pipe is installed at the discharge end of the sand suction pump 321.

[0034] When in use, start the sand suction pump 321. The sand suction pump 321 sucks sand through two sand suction pipes 32. The staff connects the discharge pipe to the required sand discharge location to discharge sand, which can conveniently complete the collection of sand and gravel.

[0035] The suction end of the sand suction mechanism 31 is equipped with two sand suction pipes 32; the specific bridge displacement mechanism 3 includes two fixed platforms 33, which are fixedly installed on the left and right sides of the pool body 1 respectively. Each of the two fixed platforms 33 has a through groove 34 on its upper side. The inner walls of the front and rear sides of the two through grooves 34 are rotatably equipped with lead screws 35. The inside of the two through grooves 34 is slidably equipped with sliders 36. The two sliders 36 are respectively connected to the two lead screws 35. The upper ends of the two sliders 36 are fixedly installed with an assembly platform 37. The sand suction mechanism 31 is installed on the top of the assembly platform 37. The front sides of the two fixed platforms 33 are fixedly installed with motors 38. The output shafts of the two motors 38 are connected to the two lead screws 35 through a gearbox. The two motors 38 are electrically connected to an external control terminal.

[0036] In use, the two motors 38 can be started and their outputs can be controlled to rotate in the forward or reverse direction via an external control terminal. Each motor 38 is equipped with an encoder to provide real-time position information. Deviation correction is performed via a PLC or motion controller to ensure that the two motors 38 start or stop synchronously, driving the assembly table 37 to move back and forth. The assembly table 37 then drives the sand suction mechanism 31 to move back and forth. During this process, if... Figure 3 As shown, the sand suction pipe 32 drives the sealing belt 43 to rotate. While the sand suction pipe 32 is suctioning sand normally, the sealing belt 43 seals the moving sand suction pipe 32 in real time to prevent odor leakage. The sealing belt 43 rotates under the action of two drive rollers. This ensures that the sand suction is carried out normally and also prevents odor from being emitted, thus avoiding environmental impact.

[0037] Sealing strips 401 are provided on both the front and rear sides inside the mounting frame 41. The two sealing strips 401 are used to fill the gap between the sealing strip 43 and the mounting frame 41. After filling the sealing strips 401, the sealing strips 401 fill the gap between the sealing strips 401 and the mounting frame 41 without affecting the rotation of the sealing strip 43, thereby further increasing the sealing performance.

[0038] There are two sealing mechanisms 4, which are respectively installed on the upper side inside the two processing chambers 12. Each sealing mechanism 4 includes a mounting frame 41, which is fixedly installed on the upper side inside the processing chamber 12. An assembly plate 42 is fixedly installed on the bottom of the mounting frame 41 near the baffle wall 111. Two drive rollers are rotatably mounted on the side of the assembly plate 42 away from the baffle wall 111. The two drive rollers jointly drive the sealing belt 43. A sealing plate 442 is fixedly installed inside the mounting frame 41 and arranged parallel to the sealing belt 43. An exhaust pipe 441 is provided on the rear side of the top of the sealing plate 442. One end of the exhaust pipe 441 is connected to an external air purification device.

[0039] During use, the odor generated by the exhaust pipe 411 is discharged into the external air purification device. The odor is purified by the air purification device before being discharged into the outside, thus avoiding any impact on the environment. The upper side of the sealing plate 442 is parallel to the upper side of the sealing strip 43, and both the sealing plate 442 and the sealing strip 43 are provided with sealing strips on the side closest to each other, which increases the sealing effect without affecting the operation of the sealing strip 43.

[0040] Two sand suction pipes 32 have one end extending into the interior of two closed strips 43 and are fixedly connected to each other. Two L-shaped connecting pipes 44 are assembled, and the lower ends of the two L-shaped connecting pipes 44 extend into the bottom of the interior of the two processing chambers 12.

[0041] The device is used as follows:

[0042] During use, wastewater is discharged into the two treatment chambers 12 through the inlets on the front and rear sides of the tank body 1. The external aeration device is activated, and the external aeration device sends gas into the aeration pipe 21 through the air inlet pipe, and then aeration is introduced into the treatment chamber 12 through the aeration head 22. The sand and gravel are settled to the bottom of the treatment chamber 12 by the dual action of hydraulic sedimentation and aeration stirring. At the same time, the sealing strip 43 of the sealing mechanism 4 and the sealing plate 442 cooperate to form a closed space to prevent the odor generated by aeration from being directly emitted. The sealing strip 401 further fills the gap to enhance the sealing performance. The odor enters the external air purification device through the exhaust pipe 441 for purification and then is discharged.

[0043] When sand removal is required, the two motors 38 of the bridge displacement mechanism 3 are activated through the external control terminal. The motors 38 drive the slider 36 through the lead screw 35 to move the assembly table 37 back and forth, and simultaneously drive the sand suction mechanism 31 to move. The sand suction pump 321 is activated. The sand suction pump 321 sucks up the sand and gravel at the bottom of the treatment chamber 12 through the sand suction pipe 32 and the L-shaped connecting pipe 44. The sand and gravel are transported to the designated location through the discharge pipe. During this process, when the sand suction pipe 32 moves, it drives the sealing belt 43 to rotate with the transmission roller, keeping the sand suction pipe 32 closed at the penetration point in real time to prevent odor leakage.

[0044] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A sand removal device for a sedimentation tank based on aeration tail gas, characterized in that: include The pool body (1) has a baffle wall (111) in the center of the pool body (1), which divides the internal space of the pool body (1) into two processing chambers (12) on the left and right sides. The pool body (1) has two inlets and two outlets on the front and rear sides respectively. There are two aeration mechanisms (2), and the two aeration mechanisms (2) are respectively located on the bottom side inside the two treatment chambers (12); Bridge displacement mechanism (3), the bridge displacement mechanism (3) is set on the top of the pool body (1), the top of the bridge displacement mechanism (3) is provided with a sand suction mechanism (31), and the suction end of the sand suction mechanism (31) is equipped with two sand suction pipes (32). There are two sealing mechanisms (4). The two sealing mechanisms (4) are respectively installed on the upper side inside the two processing chambers (12). The sealing mechanism (4) includes a mounting frame (41). The mounting frame (41) is fixedly installed on the upper side inside the processing chamber (12). An assembly plate (42) is fixedly installed on the bottom of the mounting frame (41) near the retaining wall (111). Two transmission rollers are rotatably mounted on the side of the assembly plate (42) away from the retaining wall (111). The two transmission rollers jointly drive the sealing belt (43). A sealing plate (442) is fixedly installed inside the mounting frame (41) and arranged side by side with the sealing belt (43). One end of each of the two sand suction pipes (32) extends into the interior of the two closed strips (43) and is fixedly connected to two L-shaped connecting pipes (44). The lower ends of the two L-shaped connecting pipes (44) extend into the bottom side of the interior of the two processing chambers (12).

2. The sand removal device for a sedimentation tank based on aeration tail gas according to claim 1, characterized in that: The bridge displacement mechanism (3) includes two fixed platforms (33), which are fixedly installed on the left and right sides of the pool body (1). Each of the two fixed platforms (33) has a through groove (34) on its upper side. Each of the two through grooves (34) has a lead screw (35) rotatably mounted on the inner wall of its front and rear sides. Each of the two through grooves (34) has a slider (36) slidably mounted inside its interior. Each of the two sliders (36) is connected to the two lead screws (35) for transmission. Each of the two sliders (36) has an assembly platform (37) fixedly mounted on its upper end. The sand suction mechanism (31) is installed on the top of the assembly platform (37). Each of the two fixed platforms (33) has a motor (38) fixedly mounted on its front side. The output shafts of the two motors (38) are connected to the two lead screws (35) for transmission through a gearbox. The two motors (38) are electrically connected to an external control terminal.

3. The sand removal device for a sedimentation tank based on aeration tail gas according to claim 2, characterized in that: The sand suction mechanism (31) includes a sand suction pump (321), which is fixedly installed on the top of the assembly platform (37). An assembly pipe is fixedly installed at the suction end of the sand suction pump (321). Two sand suction pipes (32) are fixedly connected and assembled on the left and right sides of the bottom of the assembly pipe. A discharge pipe is installed at the discharge end of the sand suction pump (321).

4. The sand removal device for a sedimentation tank based on aeration tail gas according to claim 1, characterized in that: The mounting frame (41) has sealing strips (401) on both the front and rear sides inside. The two sealing strips (401) are used to fill the gap between the sealing strip (43) and the mounting frame (41).

5. The sand removal device for a sedimentation tank based on aeration tail gas according to claim 1, characterized in that: The top rear side of the enclosed plate (442) is provided with an exhaust pipe (441), one end of which is connected to an external air purification device.

6. The sand removal device for a sedimentation tank based on aeration tail gas according to claim 1, characterized in that: The aeration mechanism (2) includes several aeration pipes (21). The several aeration pipes (21) are arranged obliquely and assembled on the side of the treatment chamber (12) near the baffle wall (111). Several aeration heads (22) are arranged on the top of each of the several aeration pipes (21). A connecting pipe is fixedly connected between each two adjacent aeration pipes (21). An air-filling pipe is installed inside the baffle wall (111). An air inlet pipe is fixedly installed around the air-filling pipe. One end of the air inlet pipe is fixedly connected to one of the aeration pipes (21). One end of the air-filling pipe is fixedly connected to the exhaust end of the external aeration device.

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