Wastewater treatment grillage machine

Abstract

The utility model discloses a waste water treatment grillage machine. The waste water treatment grillage machine comprises a shell plate and a grillage device, three rotating shafts are installed on the outer shell plate, a pair of first chain teeth is installed on each rotating shaft, a pair of second chain teeth is installed on the outer shell plate, a pair of chains is installed on the three pairs of first chain teeth and the pair of second chain teeth, and a garbage pool is installed on one side of the outer shell plate; the grating device is installed between the pair of chains and comprises a plurality of first fixing shafts, the first fixing shafts are evenly installed between the pair of chains, rotating shafts are rotationally arranged on the first fixing shafts, a plurality of first grating strips are evenly fixed to the rotating shafts, and a fishing net is rotationally arranged on the rotating shafts. A plurality of second grid strips are evenly fixed to the end, away from the first grid strips, of the fishing net, and the second grid strips and the first grid strips are arranged in a staggered mode. Through the related structural design, dirt and garbage remaining on the grid are effectively reduced, so that the sewage filtering efficiency and quality are effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, specifically relating to a wastewater treatment bar screen. Background Technology

[0002] A bar screen is a pretreatment device used in wastewater treatment systems. It is primarily used to intercept and remove suspended solids, such as floating debris, large particles, and suspended particles, from wastewater. Its main function is to protect downstream treatment equipment (such as pumps, pipes, and sedimentation tanks) from clogging or damage through physical filtration, thereby improving wastewater treatment efficiency and stability. It is a crucial component of the wastewater treatment process.

[0003] Currently, existing bar screens can accumulate dirt and debris during use. If not cleaned in time, they can become clogged over time, affecting wastewater filtration efficiency. Furthermore, when the bar screen is rotated back into the wastewater, the remaining debris may be carried into the next stage of wastewater treatment, thus impacting that stage as well.

[0004] Therefore, in order to address the aforementioned technical problems, it is necessary to provide a wastewater treatment bar screen.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a wastewater treatment bar screen that can solve the problem of residual dirt and garbage on the bar screen in existing wastewater treatment bar screens.

[0007] To achieve the above objectives, a specific embodiment of the present invention provides a wastewater treatment bar screen, comprising: an outer shell plate and a bar screen device;

[0008] Three rotating shafts are installed on the outer shell plate, each of the three rotating shafts is equipped with a pair of first chain teeth, and a pair of second chain teeth are installed on the outer shell plate. A pair of chains are installed on the three pairs of first chain teeth and the pair of second chain teeth. A garbage bin is installed on one side of the outer shell plate.

[0009] The grid device is installed between a pair of chains. The grid device includes a plurality of first fixed shafts, which are evenly installed between the pair of chains. A rotating shaft is rotatably mounted on the first fixed shaft. A plurality of first grid strips are evenly fixed on the rotating shaft. A retrieval net is rotatably mounted on the rotating shaft. A plurality of second grid strips are evenly fixed on the end of the retrieval net away from the first grid strips. The second grid strips are staggered with the first grid strips.

[0010] In one or more embodiments of this utility model, a water pipe is installed on the outer shell plate. The water pipe needs to be connected to an external water pump, which transmits water into the water pipe. The water pipe is installed inside the outer shell plate with multiple high-pressure nozzles. The water in the water pipe is sprayed out through the high-pressure nozzles to flush the grid device, washing away the dirt and debris adhering to the grid device.

[0011] In one or more embodiments of this utility model, a water filter tank is provided in the garbage pit, and a water filter screen is cut at the bottom of the water filter tank. After being washed by water sprayed from the high-pressure nozzle, the dirt and garbage falling into the garbage pit are filtered out by the water filter tank through the water filter screen.

[0012] In one or more embodiments of this utility model, a pair of support plates are installed inside the outer shell plate. The support plates are used for the rollers to roll on their surfaces, thereby enabling the support legs to support the rotating shaft while allowing the support legs to slide along the surface of the support legs, and preventing the rotating shaft from rotating.

[0013] In one or more embodiments of this utility model, support legs are fixed at both ends of the rotating shaft. The support legs are used to support the shaft on the support plate to prevent the rotating shaft from rotating.

[0014] In one or more embodiments of this utility model, a pair of rollers are installed on the support leg, and the rollers slide on the support plate. By setting the rollers, the sliding arrangement between the support leg and the support plate is realized.

[0015] In one or more embodiments of this utility model, a pair of sector plates are fixed at both ends of the rotating shaft, and the sector plates are used to support the salvage net.

[0016] In one or more embodiments of this utility model, an arc-shaped groove is carved on the fan-shaped plate. The arc axis of the arc-shaped groove is the same as the axis of the rotating shaft. The arc-shaped groove is used for the second rotating shaft to slide in it. By setting the arc axis of the arc-shaped groove and the axis of the rotating shaft to be the same, the second rotating shaft slides along the trajectory of the arc-shaped groove when the rotating shaft of the fishing net rotates.

[0017] In one or more embodiments of this utility model, a pair of second rotating shafts are fixed on the retrieval net. The second rotating shafts slide in an arc-shaped groove. When the chain drives the retrieval net to the top of the outer shell plate, the retrieval net continues to move. Due to its own weight, the retrieval net rotates, causing the second rotating shaft to slide from one end of the arc-shaped groove to the other end. When the second rotating shaft slides to the bottom, the vibration force generated by the collision will cause the garbage on the retrieval net to fall into the garbage pool.

[0018] In one or more embodiments of this utility model, the second rotating shaft is provided with a pulley installed in the arc-shaped groove, and the second rotating shaft slides between itself and the arc-shaped groove through the pulley.

[0019] Compared with existing technologies, this utility model effectively reduces dirt and garbage residue on the screen through related structural design, thereby effectively improving the efficiency and quality of sewage filtration. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of a wastewater treatment bar screen according to one embodiment of the present utility model;

[0022] Figure 2 for Figure 1 The structural diagram shown at point A in the middle;

[0023] Figure 3 This is a schematic diagram of the outer shell plate in one embodiment of the present invention;

[0024] Figure 4 This is a structural schematic diagram of the outer shell plate from another perspective in one embodiment of the present invention;

[0025] Figure 5 for Figure 4 The structural diagram shown at point B in the middle;

[0026] Figure 6 This is a perspective cross-sectional view of the outer shell plate in one embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the garbage pit in one embodiment of the present invention;

[0028] Figure 8 This is a diagram showing the positional relationship between two adjacent grille devices in one embodiment of the present invention;

[0029] Figure 9 This is a schematic diagram of the structure of the grille device in one embodiment of the present invention;

[0030] Figure 10 This is a structural schematic diagram of the grille device from another perspective in one embodiment of the present invention.

[0031] Explanation of key figure labels:

[0032] 1-Outer shell plate, 101-Rotating shaft, 102-First chain tooth, 103-Second chain tooth, 104-Chain, 105-Support plate, 106-Water pipe, 107-High pressure nozzle, 108-Garbage pit, 109-Water filter tank, 110-Water filter screen, 2-Grate device, 201-First fixed shaft, 202-Rotating shaft, 203-Fan-shaped plate, 204-First grid bar, 205-Support leg, 206-Roller, 207-Retrieval net, 208-Second grid bar, 209-Second rotating shaft, 210-Pulley, 211-Arc-shaped chute. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0034] like Figures 1 to 10 As shown, a wastewater treatment bar screen in one embodiment of the present invention includes: an outer shell plate 1 and a bar screen device 2.

[0035] like Figures 1 to 7 As shown, three rotating shafts 101 are mounted on the outer casing 1. One of these shafts 101 requires an external drive device to rotate, and the shaft 101 drives the first chain teeth 102 to rotate. Each of the three rotating shafts 101 has a pair of first chain teeth 102, and the outer casing 1 has a pair of second chain teeth 103. The second chain teeth 103 are used to change the path of the chain 104. A chain 104 is mounted on the three pairs of first chain teeth 102 and the pair of second chain teeth 103, and the chain 104 is used to drive the grid device 2 to operate. A garbage bin 108 is mounted on one side of the outer casing 1, and the garbage bin 108 is used to hold the filtered garbage.

[0036] like Figures 1 to 7As shown, a water pipe 106 is installed on the outer casing 1. The water pipe 106 requires an external water pump to deliver water to it. Multiple high-pressure nozzles 107 are installed inside the outer casing 1. The water in the water pipe 106 is sprayed out through the high-pressure nozzles 107 to flush the grille device 2, washing away the dirt and debris adhering to it. A filter tank 109 is installed in the garbage pit 108. A filter screen 110 is cut into the bottom of the filter tank 109. Dirt and debris washed away by the water sprayed from the high-pressure nozzles 107 and falling into the garbage pit 108 are filtered out by the filter tank 109 through the filter screen 110, where excess water is filtered out.

[0037] like Figure 1 and 9 As shown, the grating device 2 is installed between a pair of chains 104. The grating device 2 includes multiple first fixed shafts 201, which are evenly installed between the pair of chains 104. The chains 104 drive the first fixed shafts 201 to move, and the first fixed shafts 201 drive the rotating shaft 202 to move. A rotating shaft 202 is rotatably mounted on the first fixed shafts 201. Multiple first grating bars 204 are evenly fixed on the rotating shaft 202. A retrieval net 207 is rotatably mounted on the rotating shaft 202. Multiple second grating bars 208 are evenly fixed at the end of the retrieval net 207 away from the first grating bars 204. The second grating bars 208 are staggered with the first grating bars 204. The retrieval net 207 retrieves garbage from the sewage. The staggered arrangement of the first grating bars 204 and the second grating bars 208 blocks garbage from the sewage. Simultaneously, when the retrieval net 207 moves to the... Figure 2 The top of the outer shell plate 1 is shown. The retrieval net 207 drives the second grid bar 208 to rotate. The second grid bar 208 hooks the garbage on the first grid bar 204 so that the garbage can fall into the garbage pool 108.

[0038] like Figures 8 to 10 As shown, a pair of support plates 105 are installed inside the outer casing 1. The support plates 105 are used for the rollers 206 to roll on their surfaces, thereby enabling the support legs 205 to support the rotating shaft 202 while simultaneously allowing the support legs 205 to slide along their surfaces, preventing the rotating shaft 202 from rotating. Support legs 205 are fixed to both ends of the rotating shaft 202, supporting the shaft on the support plates 105 to prevent rotation. A pair of rollers 206 are installed on the support legs 205, sliding on the support plates 105. By setting the rollers 206, a sliding arrangement between the support legs 205 and the support plates 105 is achieved.

[0039] like Figures 8 to 10As shown, a pair of sector plates 203 are fixed at both ends of the rotating shaft 202, and the sector plates 203 are used to support the salvage net 207. Each sector plate 203 has an arc-shaped groove 211. The arc axis of the arc groove 211 is the same as the axis of the rotating shaft 202. The arc groove 211 is used for the second rotating shaft 209 to slide within it. By setting the arc axis of the arc groove 211 to be the same as the axis of the rotating shaft 202, the second rotating shaft 209 also slides along the trajectory of the arc groove 211 when the rotating shaft 202 rotates.

[0040] like Figures 8 to 10 As shown, a pair of second rotating shafts 209 are fixed on the salvage net 207. The second rotating shafts 209 slide in the arc-shaped groove 211. When the chain 104 drives the salvage net 207 to move to the position shown in the figure, the second rotating shafts 209 slide in the arc-shaped groove 211. Figure 2 After the outer shell plate 1 is topped, the retrieval net 207 continues to move. Due to its own weight, the retrieval net 207 rotates, causing the second rotating shaft 209 to slide from one end of the arc-shaped chute 211 to the other. When the second rotating shaft 209 slides to the bottom, the vibration generated by the collision causes the garbage on the retrieval net 207 to fall into the garbage pool 108. The second rotating shaft 209 is equipped with a pulley 210 inside the arc-shaped chute 211, and the second rotating shaft 209 slides between itself and the arc-shaped chute 211 through the pulley 210.

[0041] Working principle: Before using this device, an external drive device needs to be connected to the rotating shaft 101 to drive the rotating shaft 101 to rotate. An external water pump is connected to the water pipe 106 to transmit water to the water pipe 106. When the device is in use, the external drive device is first driven to drive the rotating shaft 101 to rotate. The rotating shaft 101 drives the first chain tooth 102 to rotate. The first chain tooth 102 drives the chain 104 to move. The chain 104 drives the grid device 2 to move.

[0042] By intersecting the first and second bar grids 204 of every two adjacent grid devices 2, garbage in the sewage is blocked. Then, a retrieval net 207 retrieves the garbage from the sewage. When the retrieval net 207 moves to... Figure 2 After the top of the outer shell plate 1 is shown, the salvage net 207 continues to move. Due to its own weight, the salvage net 207 rotates, causing the second rotating shaft 209 to slide from one end of the arc-shaped chute 211 to the other end. When the second rotating shaft 209 slides to the bottom, the vibration force generated by the collision will cause the garbage on the salvage net 207 to fall into the garbage pool 108.

[0043] At the same time, the scooping net 207 drives the second grid bar 208 to rotate. The second grid bar 208 hooks out the garbage remaining on the first grid bar 204. Then, the high-pressure water jet from the high-pressure nozzle 107 washes the scooping net 207, the first grid bar 204, and the second grid bar 208 to effectively remove the adhering garbage. The flushed water is filtered through the filter screen 110 and flows back into the sewage treatment path for further treatment.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A wastewater treatment bar screen, characterized in that, include: The outer shell panel has three rotating shafts installed on it, each of the three rotating shafts has a pair of first chain teeth, and the outer shell panel has a pair of second chain teeth installed on it. A pair of chains are installed on the three pairs of first chain teeth and the pair of second chain teeth. A garbage bin is installed on one side of the outer shell panel. A grid device is installed between a pair of chains. The grid device includes multiple first fixed shafts, which are evenly installed between the pair of chains. A rotating shaft is rotatably mounted on the first fixed shaft. Multiple first grid bars are evenly fixed on the rotating shaft. A retrieval net is rotatably mounted on the rotating shaft. Multiple second grid bars are evenly fixed on the end of the retrieval net away from the first grid bars. The second grid bars are staggered with the first grid bars.

2. The wastewater treatment bar screen according to claim 1, characterized in that, A water pipe is installed on the outer shell plate, and multiple high-pressure nozzles are installed inside the outer shell plate.

3. The wastewater treatment bar screen according to claim 1, characterized in that, The garbage pit is equipped with a water filter tank, and a water filter screen is cut into the bottom of the water filter tank.

4. A wastewater treatment bar screen according to claim 1, characterized in that, A pair of support plates are installed inside the outer shell.

5. A wastewater treatment bar screen according to claim 4, characterized in that, Both ends of the rotating shaft are fixed with support legs.

6. A wastewater treatment bar screen according to claim 5, characterized in that, A pair of rollers are mounted on the support leg, and the rollers slide on the support plate.

7. A wastewater treatment bar screen according to claim 1, characterized in that, A pair of sector-shaped plates are fixed at both ends of the rotating shaft.

8. A wastewater treatment bar screen according to claim 7, characterized in that, Each of the sector plates is chiseled with an arc-shaped groove, and the arc axis of the arc-shaped groove is the same as the axis of rotation.

9. A wastewater treatment bar screen according to claim 8, characterized in that, A pair of second rotating shafts are fixed on the salvage net, and the second rotating shafts slide in the arc-shaped groove.

10. A wastewater treatment bar screen according to claim 9, characterized in that, The second rotating shaft is fitted with a pulley inside an arc-shaped groove.

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