Filtering device for leachate drainage port of garbage pool of garbage incineration power plant
By using arc-shaped filter mesh and dual-purpose cleaning device for leachate drain outlets in the waste incineration power plant, the problems of landslide and blockage in traditional filtration facilities are solved, and the smooth drainage of garbage pools and the safety of maintenance personnel are achieved.
Patent Information
- Application Number
- CN202411955873.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-28
- Publication Date
- 2025-04-15
AI Technical Summary
The filtration facilities of the leachate drain outlet of the existing waste incineration power plant are prone to collapse due to high pressure, and the drainage height of the traditional drainage filter is low, which is easy to blockage and lead to the rise of the water level of the garbage pool, affecting the storage and fermentation of garbage. Maintenance personnel face the harsh environment and the risk of poisoning and suffocation when entering the repair.
The filter mesh with an arc-shaped structure is adopted to increase the filter area, avoid blockage, and the strength of the stress surface is increased through the arc-shaped structure to prevent landslides. At the same time, a cleaning device with dual-purpose suction and discharge is set up to achieve dual-purpose suction and discharge of the cleaning device through the arc-shaped branch pipeline network and pipeline valve.
It effectively avoids filter clogging and landslides, ensures smooth drainage of garbage pools, reduces the risk of maintenance personnel entering and repairing, and improves the safety of garbage pool environment.
Smart Images
Figure CN119819004A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to auxiliary facilities for a garbage pool of a garbage incineration power plant, in particular to a filtering device for a drainage outlet of leachate from a garbage pool of the garbage incineration power plant. Background Art
[0002] The garbage pool is the garbage receiving place of the waste incineration power plant. It is the place where garbage is received, fermented and stored. After receiving the garbage, it is piled up, stored, and fermented for 3-5 days before being sent to the incinerator for incineration to ensure that the calorific value of the garbage is at the optimal value. Due to the high water content of domestic garbage, under normal circumstances, after a certain period of stacking, domestic garbage will produce leachate. Therefore, there is often a large amount of garbage leachate at the bottom of the garbage pool.
[0003] A drainage and filtration facility is installed at the bottom of the garbage pool, including drainage holes on the pool wall and filtration facilities installed at the drainage outlet. The leachate is discharged from the drainage holes into the leachate channel and then transferred to the leachate station for sewage treatment through a water transfer pump.
[0004] In the prior art, the filtering facility at the drain outlet of the garbage pool is a square double-layer drainage filter. The filter is designed on the side wall of the garbage pool near the bottom. Due to the gravity of the garbage, this filter is under great pressure in the garbage pool and is prone to collapse. Secondly, the drainage height of the traditional drainage filter is relatively low. When the garbage is piled to the height of the filter, the filter is often blocked, which often causes the filter to be unable to drain normally, causing the water level in the garbage pool to rise rapidly, affecting the normal storage and fermentation of the garbage, and ultimately affecting normal combustion. When the garbage filter collapses or the filter is blocked, maintenance personnel need to wait until the garbage inventory is low before entering the garbage pool for repairs. The problem is that when personnel enter the channels between the garbage pools, the environment between the channels is extremely harsh, which causes damage to the health of personnel, and sometimes even risks of poisoning and suffocation. Summary of the invention
[0005] The present invention solves the problems of the prior art and provides a filtering device for the drainage outlet of the leachate of the garbage pool of the garbage incineration power plant. The filter screen adopts an arc structure, which greatly increases the filtering area of the filter screen and effectively avoids the clogging of the filter screen. At the same time, the arc structure can further increase the strength of the force-bearing surface and prevent collapse, effectively ensuring the smooth drainage of the garbage pool and effectively solving the problems of the prior art.
[0006] The technical solution adopted by the present invention to solve the technical problem is a filtering device for the leachate drain outlet of a garbage pool in a waste incineration power plant, comprising a filter screen installed on the drain outlet on the side wall of the garbage pool, wherein the filter screen is an arc-shaped filter screen, which covers the leachate drain outlet and is fixedly installed on the side wall of the garbage pool.
[0007] Preferably, the arc-shaped filter screen has wall mounting plates on both sides, the wall mounting plates are provided with wall mounting holes, and the arc-shaped filter screen is fixedly mounted on the side wall of the garbage pool through the wall mounting plates.
[0008] Preferably, the arc filter screen is also provided with an internode mounting plate, and the internode mounting plate is provided with internode mounting holes. The arc filter screen is installed on the drain outlet and is raised and fixed section by section in the form of bamboo sections until it reaches the top of the side wall of the garbage pool.
[0009] Preferably, a dual-purpose cleaning device for suction and discharge is also provided, the cleaning device comprising a wastewater recycling pool, a water pump and a pipeline, the pipeline comprising a pump inlet pipe and a pump outlet pipe;
[0010] An arc-shaped branch pipe network connected to the cleaning device pipeline is also arranged on the outer side of the arc-shaped filter screen; filtering holes are respectively arranged on the branch pipes of the arc-shaped branch pipe network.
[0011] A bypass pipe of the pump inlet pipe and a bypass pipe of the pump outlet pipe are also provided; pipeline valves are respectively provided on the pump inlet pipe and its bypass pipe, and the pump outlet pipe and its bypass pipe, and the cleaning device can be used for suction and discharge by switching the valves. (When the cleaning device is in the suction state, the filter holes on the branch pipe serve as water inlet holes, and the leachate located outside the arc-shaped filter screen is sucked from the filter holes on the branch pipe and discharged into the wastewater reuse pool, thereby removing the attachments on the outside of the arc-shaped filter screen to prevent the arc-shaped filter screen from being blocked; when the cleaning device is in the discharge state, the filter holes on the branch pipe serve as drainage holes, and water is discharged from the drainage holes to prevent the drainage holes from being blocked.
[0012] Preferably, the branch pipe network is composed of arc-shaped branch pipes spaced apart at upper and lower positions.
[0013] Preferably, in the cleaning device, the branch pipe network corresponding to each garbage drain outlet is a branch pipe with a pipe valve arranged on it.
[0014] Preferably, a channel is provided at the bottom of the side wall to connect the drainage ports.
[0015] Beneficial effects of the invention: The invention provides a filtering device for the drainage outlet of the garbage pool of a garbage incineration power plant. The filter screen adopts an arc structure, which greatly increases the filtering area of the filter screen and effectively avoids the clogging of the filter screen. At the same time, the arc structure can further increase the strength of the force-bearing surface and prevent collapse, effectively ensuring the smooth drainage of the garbage pool and effectively solving the problems of the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1-Figure 2 This is a schematic diagram of the structure of the existing garbage pool leachate drainage outlet filter. Figure 2 This is an enlarged schematic diagram of the filter structure.
[0017] Figure 3-Figure 5 This is a schematic diagram of the structure of the first embodiment of the present invention. Figure 5 This is an enlarged schematic diagram of the filter structure.
[0018] Figure 6-Figure 10 It is a schematic diagram of the structure of the second embodiment of the present invention. Figure 6 , Figure 7 This is an enlarged schematic diagram of the local structure. Figure 8 This is a schematic diagram of the cleaning device pipeline layout. Fig. 9 Schematic diagram of water flow direction when the cleaning device is in suction mode. Fig.10 Schematic diagram of water flow direction when the cleaning device is in discharge mode.
[0019] Fig.11 It is a schematic structural diagram of a third embodiment of the present invention.
[0020] In the figure:
[0021] 1. The garbage pool, 1.1A, 1.1B side walls, 1.1A1, 1.1B1 side walls are connected;
[0022] 1.1, 1.2, 1.3, 1.4 drain outlet;
[0023] 1.11 plane filter;
[0024] 1.12, 1.22, 1.32, 1.42 arc filter;
[0025] 1.12A curved filter mesh section, 1.12A1 curved surface, 1.12A12 filter mesh hole, 1.12A2 wall mounting plate, 1.12A21 wall mounting hole, inter-section mounting plate 1.12A3, inter-section mounting hole 1.12A31, 1.12A41 inside, 1.12A42 outside;
[0026] 2. Cleaning device;
[0027] 2.11 clean water tank, 2.12 leachate storage tank, 2.111 clean water tank outlet pipe, 2.121 leachate storage tank outlet pipe;
[0028] 2.2 Water pump;
[0029] 2.31 pump inlet pipe, 2.32 pump inlet bypass pipe;
[0030] 2.41 pump outlet pipe, 2.42 pump outlet bypass pipe;
[0031] 2.5 Supervisor;
[0032] In charge of 2.51, 2.52, 2.53, and 2.54;
[0033] 2.511 arc branch pipe network, 2.511A arc branch pipe;
[0034] 2.6 Pipeline control valve. DETAILED DESCRIPTION
[0035] Figure 1-Figure 2 It is a schematic diagram of the structure of the filter screen at the drainage outlet of the existing garbage pool leachate. The figure shows that in the prior art, the filtering facility on the side wall 1A of the garbage pool 1 close to the bottom drainage outlet is a square double-layer drainage filter screen, and the filter screen is designed on the side wall of the garbage pool near the bottom. Garbage is piled up in the garbage pool. When the garbage stock is large, part of the garbage will be accumulated on the side wall. Usually the water content of the garbage is very high, so it is very heavy. At this time, the filter screen will be under great pressure and prone to collapse. Secondly, the traditional filter screen only covers the drainage outlet, so the installation height is very low. When the height of the garbage pile exceeds the height of the drainage outlet, it is easy to cause the filter screen to be blocked. Due to the blockage of the filter screen, the garbage pool is often unable to drain normally, causing the water level of the garbage pool to rise rapidly, affecting the normal storage and fermentation of the garbage, and ultimately affecting the normal combustion.
[0036] In the prior art, when the garbage filter collapses or is clogged, maintenance personnel must wait until the garbage stock is low before entering the garbage pool for repair. The problem is that when personnel enter the garbage pool channel, the environment between the channels is extremely harsh, which causes damage to personnel's health and sometimes even poses a risk of poisoning and suffocation.
[0037] Figure 3-Figure 5 This is a structural schematic diagram of the first embodiment of the present invention. Different from the prior art, the figure shows that in this example, a filtering device for the drainage outlet of the garbage pool of a garbage incineration power plant includes a filter screen installed on the drainage outlet of the side wall of the garbage pool, and the filter screen is an arc filter screen 1.12A.
[0038] Figure 5 It is shown that there are wall mounting plates 1.12A2 on both sides of the arc filter 1.12A, and wall mounting holes 1.12A21 are arranged on the wall mounting plates 1.12A2. The arc filter 1.12A is fixed on the side wall 1.1A of the garbage pool through the wall mounting plates.
[0039] Figure 5 It is shown that the arc filter 1.12A is also provided with an internode mounting plate 1.12A3, on which a wall mounting hole 1.12A31 is provided. The arc filter 1.12A is installed on the drain outlet and is raised and fixed section by section in the form of bamboo sections until it reaches the top of the side wall of the garbage pool.
[0040] In this example, since the filter adopts an arc structure, the filtering area of the filter is greatly increased, effectively avoiding clogging of the filter. At the same time, the arc structure can further improve the strength of the force-bearing surface and prevent landslides, effectively solving the problems of the existing technology.
[0041] Figure 6-Figure 10 This is a schematic diagram of the structure of the second embodiment of the present invention. As shown in the figure, unlike the prior art, in this example, a dual-purpose cleaning device 2 for suction and exhaust is also provided.
[0042] Figure 8 It is shown that the cleaning device 2 includes a clean water tank 2.11, a leachate storage tank 2.12, a clean water tank 2.11, a clean water tank outlet pipe 2.111, a leachate storage tank 2.12, a leachate storage tank outlet pipe 2.121, a water pump 2.2, a pump inlet pipe 2.31, a pump inlet bypass pipe 2.32, a pump outlet pipe 2.41, a pump outlet bypass pipe 2.42, a main pipe 2.5, branch pipes 2.51, 2.52, 2.53, 2.54, and an arc-shaped branch pipe network 2.511 arranged at the bottom of each arc-shaped filter screen, and a manual control valve 2.6 arranged on each pipe.
[0043] It should be noted that each branch pipe of the arc-shaped branch pipe network 2.511 is densely provided with water absorption holes arranged in an array. Fig. 9 and Fig.10 It is shown that the arc-shaped branch pipe network 2.511 is attached to the outer side surface of the arc-shaped filter screen segment 1.12A (i.e. the side in contact with the garbage pool).
[0044] Fig. 9 It is shown that when it is necessary to suck away the leachate at the bottom of the garbage pool, the dual-purpose suction and discharge device 2 should adopt the suction mode. When the cleaning device 2 is in the suction mode, the water pump 2.2 is turned on, and the leachate at the bottom of the garbage pool is sucked and discharged into the leachate storage tank 2.12. According to the flow direction of the leachate, the leachate flows through the following pipelines in sequence: the arc branch pipe network 2.511, the branch pipe 2.51, the main pipe 2.5, the pump outlet bypass pipe 2.42, the water pump 2.2, the pump inlet bypass pipe 2.32, and finally flows into the leachate storage tank 2.12.
[0045] Fig.10 It is shown that when the water suction hole of the arc-shaped branch pipe network 2.511 needs to be dredged, the dual-purpose suction and discharge device 2 should adopt the discharge mode. When the cleaning device 2 is in the discharge mode, under the action of the water pump 2.2, the clean water in the clean water tank 2.11 is discharged to the arc-shaped branch pipe network 2.511 through the clean water tank outlet pipe 2.111. According to the flow direction of the clean water, the clean water flows through the following pipelines in sequence: the clean water tank 2.11, the clean water tank outlet pipe 2.111, the pump inlet pipe 2.31, the water pump 2.2, the pump outlet bypass pipe 2.41, the main pipe 2.5, the branch pipe 2.51, and finally flows into the arc-shaped branch pipe network 2.511.
[0046] Figure 7 It is shown that the arc branch pipe network 2.511 is composed of arc branch pipes 2.511A arranged at intervals above and below.
[0047] The present invention suggests that the dual-purpose suction and exhaust device 2 has a certain cleaning effect on the outer side surface of the arc-shaped filter mesh segment 1.12A in both the suction and exhaust modes.
[0048] exist Figure 8 As shown in the figure, in this example, a clean water tank 2.11 and a leachate storage tank 2.12 are provided, and are connected to the parallel connection point of the pump inlet pipe through the clean water tank outlet pipe 2.111 and the leachate storage tank outlet pipe 2.121 respectively. A pump inlet pipe 2.31 and a pump inlet bypass pipe 2.32 are provided at the inlet of the water pump 2.2, and pipeline control valves 2.6 are provided respectively. A pump outlet pipe 2.41 and a pump outlet bypass pipe 2.42 are provided at the outlet of the water pump 2.2, and pipeline control valves 2.6 are provided respectively on each pipeline. Fig. 9 , Fig.10 It is shown that the cleaning device 2 can be used for both suction and exhaust by switching the pipeline control valve 2.6.
[0049] at the same time, Figure 8 It is shown that pipeline control valves 2.6 are respectively provided on branch pipes 2.51, 2.52, 2.53 and 2.54, thereby realizing suction and discharge of each 2.511 arc branch pipe network one by one, thereby enhancing the suction and discharge effect.
[0050] Fig.11 This is a schematic structural diagram of the third embodiment of the present invention. Different from the second embodiment, in this embodiment, an arc-shaped filter screen 2 is also provided on the side wall 1.1B, and mutually communicating channels 1.1A1 and 1.1B1 are provided at the bottom of the side walls 1.1A and 1.1B, respectively.
[0051] The present invention suggests that in other embodiments, since the arc filter and the side wall of the garbage pool form a semi-cylindrical space, when the filter of the arc filter section 1.12A needs to be cleaned, the maintenance personnel can also stand on the floor of the discharge door and hold a high-pressure water gun to spray the filter on the inner side 1.12A41 of the filter. The present invention suggests that when using a fire hose to spray, the suction and discharge dual-purpose device 2 can be started and put into suction mode.
Claims
1. A filtering device for a leachate drain outlet of a garbage pool in a garbage incineration power plant, comprising a filter screen installed on the drain outlet of the side wall of the garbage pool, wherein the filter screen is an arc-shaped filter screen, which covers the leachate drain outlet and is fixedly installed on the side wall of the garbage pool.
2. The filtering device for the drainage outlet of the garbage pool leachate of a garbage incineration power plant according to claim 1 is characterized in that: The arc-shaped filter screen has wall mounting plates on both sides, and wall mounting holes are arranged on the wall mounting plates. The arc-shaped filter screen is fixedly mounted on the side wall of the garbage pool through the wall mounting plates.
3. The filtering device for the drainage outlet of the garbage pool leachate of a garbage incineration power plant according to claim 1 is characterized in that: The arc filter is also provided with an internode mounting plate, and the internode mounting plate is provided with internode mounting holes. The arc filter is installed on the drain outlet and is raised and fixed section by section in the form of bamboo sections directly to the top of the side wall of the garbage pool.
4. The filtering device for the drainage outlet of the garbage pool leachate of a garbage incineration power plant according to claim 1 is characterized in that: A dual-purpose cleaning device for suction and discharge is also provided, the cleaning device comprising a wastewater recycling pool, a water pump and a pipeline, the pipeline comprising a pump inlet pipe and a pump outlet pipe; An arc-shaped branch pipe network connected to the cleaning device pipeline is also arranged on the outer side of the arc-shaped filter screen; filtering holes are respectively arranged on the branch pipes of the arc-shaped branch pipe network. A bypass pipe of the pump inlet pipe and a bypass pipe of the pump outlet pipe are also provided; pipeline valves are respectively provided on the pump inlet pipe and its bypass pipe, and the pump outlet pipe and its bypass pipe, and the cleaning device can be used for suction and discharge by switching the valves. (When the cleaning device is in the suction state, the filter holes on the branch pipe serve as water inlet holes, and the leachate located outside the arc-shaped filter screen is sucked from the filter holes on the branch pipe and discharged into the wastewater reuse pool, thereby removing the attachments on the outside of the arc-shaped filter screen to prevent the arc-shaped filter screen from being blocked; when the cleaning device is in the discharge state, the filter holes on the branch pipe serve as drainage holes, and water is discharged from the drainage holes to prevent the drainage holes from being blocked.
5. The filtering device for the drainage outlet of the garbage pool leachate of the garbage incineration power plant according to claim 4 is characterized in that: The arc-shaped branch pipe network is composed of arc-shaped branch pipes arranged at intervals at upper and lower parts.
6. The filtering device for the drainage outlet of the garbage pool leachate of a garbage incineration power plant according to claim 4 is characterized in that: In the cleaning device, the branch pipe network corresponding to each garbage drain outlet is a branch pipe with a pipe valve.
7. A filtering device for the drainage outlet of leachate from a garbage pool of a garbage incineration power plant according to any one of claims 1 to 6, characterized in that: A channel is also arranged at the bottom of the side wall to connect the various drainage ports.