Wastewater treatment device for waste incineration of power plant

Abstract

The waste water treatment device comprises a flow channel, an arc-shaped part is arranged in the middle of the flow channel, an intercepting assembly is installed at the top of the flow channel, and the intercepting assembly comprises two first supporting frames fixedly connected with the outer walls of the two ends of the flow channel; the two first supporting frames are rotationally connected with the same intercepting frame through bearings, the intercepting frame is composed of six blades, the six blades of the intercepting frame are each internally provided with a filter screen, a rotating shaft of the intercepting frame coincides with the circle center of the arc-shaped part, and the intercepting frame is attached to the circumferential inner wall of the arc-shaped part; wherein a first motor is fixedly installed on the outer wall of one end of one supporting frame, and a gear is coaxially fixed to the output end of the first motor. According to the device, by arranging the intercepting assembly, a filter screen can be intermittently replaced during work, and intercepted impurities can be conveyed out of the water surface in time; therefore, the filtering efficiency can be effectively prevented from being influenced by excessive accumulation of impurities.

Description

A wastewater treatment device for waste incineration in power plants Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically a wastewater treatment device for power plant waste incineration. Background Technology

[0002] Waste incineration is a technology for the harmless, volume-reducing, and resource-recovering treatment of municipal solid waste. Through a high-temperature oxidation reaction, the waste is burned under high-temperature conditions, decomposing into carbon dioxide, water, and ash. This process not only significantly reduces the volume of waste but also eliminates pathogens. During waste incineration, a large amount of wastewater is generated, which contains some large impurities. These impurities need to be removed before the process can continue.

[0003] A search revealed a utility model patent with Chinese patent publication number CN218740487U, which discloses a wastewater treatment device for a waste incineration power plant. The device includes a primary treatment tank, a filtration device, and a connecting plate on the outside of the primary treatment tank. A filter screen is provided on one side of the connecting plate, and both the filter screen and the connecting plate are arc-shaped. A sealing plate is symmetrically provided on the other side of the connecting plate. A through groove is provided on the connecting plate, and sliding grooves are symmetrically provided in the through groove. Protrusions are symmetrically provided at both ends of the sealing plate.

[0004] The aforementioned device cleans the filter screen by scraping it with a winch. However, the intercepted debris still remains in the treatment tank. As the usage time increases, the accumulation of this debris will affect the filtration efficiency, indicating room for improvement. Summary of the Invention

[0005] The purpose of this invention is to provide a wastewater treatment device for power plant waste incineration, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wastewater treatment device for waste incineration in a power plant, comprising a flow channel, an arc-shaped portion located in the middle of the flow channel, and an interception assembly installed at the top of the flow channel. The interception assembly comprises two support frames fixedly connected to the outer walls of both ends of the flow channel, and the two support frames are rotatably connected to the same interception frame via bearings. The interception frame consists of six blades, and each of the six blades of the interception frame is provided with a filter screen. The rotation axis of the interception frame coincides with the center of the arc-shaped portion, and the interception frame is in contact with the inner circumference of the arc-shaped portion.

[0007] As a further preferred embodiment of this technical solution, a motor is fixedly installed on the outer wall of one end of one of the support frames, a gear is coaxially fixed to the output end of the motor, and a gear ring is coaxially fixed to the rotating end of the interceptor frame. The gear ring meshes with the gear, and the number of teeth on the gear ring is six times the number of teeth on the gear.

[0008] The ability to intermittently replace the filter screen during operation ensures that intercepted impurities are promptly conveyed to the water surface, effectively preventing excessive accumulation of impurities that could affect filtration efficiency. As wastewater passes through the filter screen, it continues to flow through its holes, while impurities are intercepted. Subsequently, the motor on the outside of the support frame is activated, and its output drives the gear to rotate. The gear meshes and drives the gear ring to rotate one-sixth of a turn, causing the interception frame to rotate synchronously. The filter screen containing impurities gradually detaches from the water surface. Before it no longer contacts the curved part, a new filter screen is replaced to prevent impurities from escaping. Finally, the intercepted impurities are completely carried away from the water surface, effectively preventing them from affecting filtration efficiency.

[0009] As a further preferred embodiment of this technical solution, a cleaning component is installed outside the flow channel, and the cleaning component is located on one side of the interceptor.

[0010] As a further preferred embodiment of this technical solution, the cleaning assembly includes two support frames fixedly connected to one side of the outer wall at both ends of the flow channel. Two horizontally arranged guide rods are fixedly connected between the two support frames. The two guide rods are slidably fitted with the same movable seat. Two cleaning brushes are rotatably connected inside the movable seat through bearings. The two cleaning brushes are respectively attached to the top and bottom walls of one of the filter screens. A toothed ring is coaxially fixed at one end of each of the two cleaning brushes, and the two toothed rings mesh with each other.

[0011] As a further preferred embodiment of this technical solution, a lead screw is rotatably connected between the two support frames 2 via a bearing. The movable seat is threaded onto the outside of the lead screw. A motor 2 is fixedly installed on one side outer wall of one of the support frames 2. The output end of the motor 2 is coaxially fixed with one end of the lead screw. The same rack is fixedly connected between the two support frames 2. The rack meshes with a top toothed ring 2.

[0012] Start the second motor on the outside of the second support frame. Its output single drive rotates the lead screw, and the moving seat, which is restricted by two guide rods, will be moved to the left. During this time, the second toothed ring at the top rotates clockwise under the meshing of the rack and pinion, which drives the cleaning brush connected to it to rotate synchronously. This cleaning brush can push the debris on the top of the filter screen to one side, and then it falls to the top of the guide plate and slides to the outside. The second toothed ring at the top meshes and drives the other toothed ring at the second toothed ring to rotate counterclockwise. The cleaning brush at the bottom will first contact the bottom wall of the filter screen. When it rotates, the debris stuck in the mesh will be pushed out, making the subsequent cleaning more thorough.

[0013] As a further preferred embodiment of this technical solution, an inclined guide plate is fixedly connected to the outer wall of one end of the flow channel, and the guide plate is located at the end of a filter screen.

[0014] As a further preferred embodiment of this technical solution, six rubber strips are bonded to the outside of the interceptor frame, and the six rubber strips are respectively located at the ends of the six blades of the interceptor frame.

[0015] This utility model provides a wastewater treatment device for waste incineration in power plants, which has the following beneficial effects:

[0016] (1) By setting up an interception component, this utility model can intermittently replace the filter screen during operation, so that the intercepted impurities can be promptly conveyed to the water surface, thereby effectively avoiding the accumulation of too many impurities that affect the filtration efficiency. When the wastewater passes through the filter screen, the water continues to flow through its holes, while the impurities are intercepted. Then, the motor on the outside of the support frame is started, and its output end drives the gear to rotate. The gear drives the gear ring to rotate one-sixth of a turn through meshing, and then the interception frame will rotate synchronously. The filter screen with the intercepted impurities gradually leaves the water surface. Before it no longer contacts the arc-shaped part, a new filter screen will be replaced to prevent the impurities from escaping. Finally, the intercepted impurities will be completely removed from the water surface, effectively preventing them from affecting the filtration efficiency.

[0017] (2) By setting up a cleaning component, the second motor on the outside of the second support frame is started. Its output single drive causes the lead screw to rotate. The moving seat, which is restricted by two guide rods, will be driven to move to the left. During this period, the top toothed ring rotates clockwise under the meshing of the rack, which drives the cleaning brush connected to it to rotate synchronously. This cleaning brush can push the debris on the top of the filter screen to one side, and then fall to the top of the guide plate and slide to the outside. The top toothed ring drives another toothed ring to rotate counterclockwise through meshing. The bottom cleaning brush will first contact the bottom wall of the filter screen. When it rotates, the debris stuck in the mesh will be pushed out, making the subsequent cleaning more thorough. Attached Figure Description

[0018] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 is an enlarged structural schematic diagram of the cleaning component of this utility model;

[0020] Figure 3 is an enlarged structural schematic diagram of point A in Figure 1 of this utility model;

[0021] Figure 4 is an enlarged structural schematic diagram of point B in Figure 2 of this utility model;

[0022] In the diagram: 1. Flow channel; 2. Arc-shaped part; 3. Rubber strip; 4. Guide plate; 5. Interception component; 6. Cleaning component; 501. Support frame one; 502. Interception frame; 503. Filter screen; 504. Gear ring one; 505. Motor one; 506. Gear; 601. Support frame two; 602. Guide rod; 603. Lead screw; 604. Moving seat; 605. Cleaning brush; 606. Motor two; 607. Gear ring two; 608. Rack. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] The present invention provides the following technical solution: As shown in Figures 1 and 3, in this embodiment, a wastewater treatment device for waste incineration in a power plant includes a flow channel 1, an arc-shaped part 2 is provided in the middle of the flow channel 1, and an interception component 5 is installed on the top of the flow channel 1. The interception component 5 includes two support frames 501 fixedly connected to the outer walls of both ends of the flow channel 1. The two support frames 501 are rotatably connected to the same interception frame 502 through a bearing. The interception frame 502 is composed of six blades, and each of the six blades of the interception frame 502 is provided with a filter screen 503. The rotation axis of the interception frame 502 coincides with the center of the arc-shaped part 2, and the interception frame 502 is in contact with the inner circumference of the arc-shaped part 2.

[0025] One of the support frames 501 has a motor 505 fixedly mounted on one end of its outer wall. A gear 506 is coaxially fixed to the output end of the motor 505. A gear ring 504 is coaxially fixed to the rotating end of the interceptor frame 502. The gear ring 504 meshes with the gear 506, and the number of teeth on the gear ring 504 is six times the number of teeth on the gear 506.

[0026] When wastewater passes through filter screen 503, the water continues to flow through its holes, while impurities are intercepted. Then, the motor 505 on the outside of the support frame 501 is activated, and its output drives the gear 506 to rotate. The gear 506 meshes and drives the gear ring 504 to rotate one-sixth of a turn, and the interceptor frame 502 rotates synchronously. The filter screen 503 containing impurities gradually leaves the water surface. Before it no longer contacts the arc-shaped part 2, a new filter screen 503 is replaced to prevent impurities from escaping. Finally, the intercepted impurities are completely removed from the water surface, effectively preventing them from affecting the filtration efficiency.

[0027] As shown in Figures 2 and 4, a cleaning component 6 is installed on the outside of the flow channel 1, and the cleaning component 6 is located on one side of the interceptor 502.

[0028] The cleaning component 6 includes two support frames 601 fixedly connected to one side of the outer wall at both ends of the flow channel 1. Two horizontally arranged guide rods 602 are fixedly connected between the two support frames 601. The two guide rods 602 are slidably sleeved on the same movable seat 604. Two cleaning brushes 605 are rotatably connected inside the movable seat 604 through bearings. The two cleaning brushes 605 are respectively attached to the top and bottom walls of one of the filter screens 503. A toothed ring 607 is coaxially fixed at one end of each of the two cleaning brushes 605, and the two toothed rings 607 mesh with each other.

[0029] A lead screw 603 is rotatably connected between two support frames 601 via bearings. A movable seat 604 is threaded onto the outside of the lead screw 603. A motor 606 is fixedly installed on the outer wall of one side of one of the support frames 601. The output end of the motor 606 is coaxially fixed with one end of the lead screw 603. The same rack 608 is fixedly connected between the two support frames 601. The rack 608 meshes with a toothed ring 607 at the top.

[0030] The motor 606 on the outside of the support frame 601 is started, and its output drives the lead screw 603 to rotate. The movable seat 604, which is restricted by the two guide rods 602, will be driven to move to the left. During this time, the top toothed ring 607 rotates clockwise under the meshing of the rack 608, which drives the cleaning brush 605 connected to it to rotate synchronously. This cleaning brush 605 can push the debris on the top of the filter screen 503 to one side, and then fall to the top of the guide plate 4 and slide to the outside. The top toothed ring 607 drives the other toothed ring 607 to rotate counterclockwise through meshing. The bottom cleaning brush 605 will first contact the bottom wall of the filter screen 503. When it rotates, the debris stuck in the mesh will be pushed out, making the subsequent cleaning more thorough. Finally, the movable seat 604 is driven back to its original position for the next operation.

[0031] As shown in Figure 1, an inclined guide plate 4 is fixedly connected to the outer wall of one end of the flow channel 1. The guide plate 4 is located at the end of a filter screen 503. Debris falling into the guide plate 4 will slide down the slope to one place.

[0032] As shown in Figure 1, six rubber strips 3 are bonded to the outside of the interceptor 502. The six rubber strips 3 are located at the ends of the six blades of the interceptor 502, so that the interceptor 502 can better fit the inner wall of the arc-shaped part 2 and effectively prevent debris from escaping through the gap.

[0033] This utility model provides a wastewater treatment device for waste incineration in power plants, the specific working principle of which is as follows:

[0034] When the device is working, wastewater enters through the opening at the top of the flow channel 1 and flows downwards, converting potential energy into kinetic energy. The wastewater then flows rapidly along the arc-shaped section 2. When the wastewater passes through the filter screen 503, the water continues to flow through its holes, while impurities are intercepted. Then, the motor 505 on the outside of the support frame 501 is activated, and its output drives the gear 506 to rotate. The gear 506, through meshing, drives the gear ring 504 to rotate one-sixth of a revolution, causing the interceptor frame 502 to rotate synchronously. The filter screen 503, containing impurities, gradually detaches from the water surface. Before it no longer contacts the arc-shaped section 2, a new filter screen 503 is replaced to prevent impurities from escaping. Finally, the intercepted impurities are completely removed from the water surface, effectively preventing them from affecting the filtration efficiency. The motor 606 on the outside of the support frame 601 drives the lead screw 603 to rotate. The movable seat 604, which is restricted by the two guide rods 602, will be driven to move to the left. During this time, the top toothed ring 607 rotates clockwise under the meshing of the rack 608, which drives the cleaning brush 605 connected to it to rotate synchronously. This cleaning brush 605 can push the debris on the top of the filter screen 503 to one side, and then fall to the top of the guide plate 4 and slide to the outside. The top toothed ring 607 drives another toothed ring 607 to rotate counterclockwise through meshing. The bottom cleaning brush 605 will first contact the bottom wall of the filter screen 503. When it rotates, the debris stuck in the mesh will be pushed out, making the subsequent cleaning more thorough. Finally, the movable seat 604 is driven back to its original position for the next operation.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment device for waste incineration in a power plant, comprising a flow channel (1), characterized in that: An arc-shaped section (2) is provided in the middle of the flow channel (1), and an interception assembly (5) is installed on the top of the flow channel (1). The interception assembly (5) includes two support frames (501) fixedly connected to the outer walls of both ends of the flow channel (1). The two support frames (501) are rotatably connected to the same interception frame (502) through a bearing. The interception frame (502) consists of six blades, and each of the six blades of the interception frame (502) is provided with a filter screen (503). The rotation axis of the interception frame (502) coincides with the center of the arc-shaped section (2), and the interception frame (502) is in contact with the inner circumference of the arc-shaped section (2). A cleaning assembly (6) is installed on the outside of the flow channel (1). The component (6) is located on one side of the interceptor (502); the cleaning component (6) includes two support frames (601) fixedly connected to one side of the outer wall at both ends of the flow channel (1), and two horizontally arranged guide rods (602) fixedly connected between the two support frames (601). The two guide rods (602) are slidably fitted with the same movable seat (604). The movable seat (604) is rotatably connected to two cleaning brushes (605) through bearings. The two cleaning brushes (605) are respectively attached to the top wall and bottom wall of one of the filter screens (503). One end of each of the two cleaning brushes (605) is coaxially fixed with a toothed ring (607), and the two toothed rings (607) mesh with each other.

2. The wastewater treatment device for power plant waste incineration according to claim 1, characterized in that: One of the support frames (501) has a motor (505) fixedly installed on the outer wall of one end. A gear (506) is coaxially fixed at the output end of the motor (505). A gear ring (504) is coaxially fixed at the rotating end of the interceptor frame (502). The gear ring (504) meshes with the gear (506), and the number of teeth on the gear ring (504) is six times the number of teeth on the gear (506).

3. The wastewater treatment device for power plant waste incineration according to claim 1, characterized in that: A lead screw (603) is rotatably connected between the two support frames (601) via a bearing. The movable seat (604) is threaded onto the outside of the lead screw (603). A motor (606) is fixedly installed on the outer wall of one side of one of the support frames (601). The output end of the motor (606) is coaxially fixed with one end of the lead screw (603). The same rack (608) is fixedly connected between the two support frames (601). The rack (608) meshes with a top toothed ring (607).

4. The wastewater treatment device for power plant waste incineration according to claim 1, characterized in that: The outer wall of one end of the flow channel (1) is fixedly connected to an inclined guide plate (4), which is located at the end of a filter screen (503).

5. The wastewater treatment device for power plant waste incineration according to claim 1, characterized in that: The interceptor (502) has six rubber strips (3) bonded to its exterior, and the six rubber strips (3) are respectively located at the ends of the six blades of the interceptor (502).

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