Filtering device for backflow water of submerged chain conveyor

Abstract

The utility model relates to the field of water circulation equipment of a submerged chain conveyor, in particular to a filtering device for reflux water of the submerged chain conveyor, which comprises a reflux tank, a first filtration tank; a second filtration tank; one end of the shunting pipeline is connected with the return tank, and the other end of the shunting pipeline is respectively connected with the first filtering tank and the second filtering tank; the filtering inclined nets are obliquely arranged in the first filtering tank and the second filtering tank respectively; the discharging hand holes are respectively formed in the outer walls of the first filtering tank and the second filtering tank; the standing tank is respectively communicated with the first filtering tank and the second filtering tank, the standing tank is provided with an overflow port, and a precipitation conical hopper is arranged at the bottom of the standing tank; and the collecting tank is connected with the overflow port. Impurities in backflow water of the slag dredger are filtered, so that water flowing back into the water supplementing tank is clear, the sensitivity of the water supplementing detection switch is not affected, and it is guaranteed that water in the water supplementing tank is always at a safe water level.

Description

Technical Field

[0001] This utility model relates to the field of water circulation equipment for slag removal machines, and in particular to a filtration device for the return water of slag removal machines. Background Technology

[0002] A liquid-sealed slag remover typically has a rocker-arm pusher hopper, which is driven forward and backward by a hydraulic device. Behind the pusher hopper is a water tank, with a water supply pipe usually installed on it. The working principle is as follows: when the hydraulic device pushes the pusher forward, the water tank replenishes water into the slag remover to lower the slag temperature. When the hydraulic device pushes the pusher backward, the water in the slag remover flows back into the water tank, thus achieving water circulation and improving water utilization. However, when the water is cooling the slag in the slag remover, it carries a significant amount of small impurities or silt, which then flows back into the water tank, thus contaminating the water quality there.

[0003] Currently, the water level switches for slag remover water replenishment mainly use electrode-type liquid level switches, main pipe float-type liquid level switches, side-mounted float-type or tuning fork-type liquid level switches. Among them, electrode-type liquid level switches, main pipe float-type liquid level switches, side-mounted float-type or tuning fork-type liquid level switches are all limited by the turbid water quality in the slag remover water replenishment tank, making the water level detection inaccurate and unable to adjust the water level control in a timely manner according to the actual situation. As a result, water is often not replenished when it should be replenished, resulting in insufficient water replenishment. This causes the slag remover pusher hopper to jam, requiring a lot of manpower to clean and unclog, and affecting production. At the same time, the above control methods are difficult to avoid false water level. The reciprocating motion of the slag remover pusher hopper can generate false low water levels, leading to excessive water replenishment and overflow, which in turn affects the hygiene of the slag remover area and slag pit. Utility Model Content

[0004] This utility model provides a filtration device for the return water of a slag remover. By setting it at the return point of the slag remover, it filters impurities in the water returning from the slag remover, making the water returning to the water supply tank clear and not affecting the sensitivity of the water supply detection switch, thereby ensuring that the water in the water supply tank is always at a safe production water level.

[0005] To achieve the above objectives, this utility model provides a filtration device for the return water of a slag removal machine, comprising:

[0006] A return tank, wherein an inlet is provided on the top side wall of the return tank and a diversion port is provided at the bottom of the return tank;

[0007] A first filter tank, wherein a first filter port is provided at the top of the first filter tank and a first water outlet is provided at the bottom of the first filter tank;

[0008] The second filter tank is disposed on one side of the first filter tank, the top of the second filter tank is provided with a second filter port, and the bottom of the second filter tank is provided with a second water outlet;

[0009] A diversion pipe is provided, one end of which is connected to the diversion port, and the other end of which is connected to the first filter port and the second filter port respectively.

[0010] Inclined filter screens are respectively inclinedly disposed inside the first filter tank and the second filter tank;

[0011] The discharge manholes are respectively provided on the outer walls of the first filter tank and the second filter tank, and the bottom of the discharge manholes is flush with the bottom of the filter screen.

[0012] A settling tank, wherein a first collection port and a second collection port are provided on the side wall near the bottom of the settling tank; the first collection port is connected to the first outlet via a recovery pipe, and the second collection port is connected to the second outlet via a recovery pipe; overflow ports are respectively provided on the outer walls near the top at both ends of the settling tank; a sedimentation cone is provided at the bottom of the settling tank; the first and second collection ports are located above the sedimentation cone; and a sludge discharge port is provided at the bottom of the sedimentation cone.

[0013] A collection tank, which is connected to the overflow port.

[0014] Furthermore, the filtration device for the return water of the slag remover also includes a crushing assembly, which includes a drive unit, a crushing rod, and crushing blades. The drive unit is located at the top of the return tank. One end of the crushing rod passes through the top of the return tank and extends into the inner cavity of the return tank. The other end of the crushing rod is connected to the output end of the drive unit. Multiple crushing blades are arranged circumferentially on the crushing rod.

[0015] Furthermore, the filtration device for the return water of the slag remover also includes a crushing valve, which is installed on the diversion pipe and close to the diversion port.

[0016] Furthermore, the filtration device for the return water of the slag remover also includes a sealing valve plate, which is hinged to the discharge manhole.

[0017] Furthermore, the filtration device for the return water of the slag remover also includes a backwashing assembly, which includes a backwashing pipe, a backwashing valve, a backwashing tank, and a backwashing pump set. The backwashing pipe is T-shaped and has a first flushing port, a second flushing port, and a flushing inlet. The flushing inlet is connected to one end of the backwashing pump set, and the other end of the backwashing pump set is connected to the backwashing tank.

[0018] Furthermore, the first flushing port and the second flushing port are respectively located on the outer walls of the first filter tank and the second filter tank. The first flushing port is far away from the discharge manhole on the first filter tank, and the second flushing port is far away from the discharge manhole on the second filter tank. The top of the filter screen is flush with the top of the first flushing port and the top of the second flushing port, respectively. Multiple backwashing valves are provided, and the backwashing valves are located on the backwashing pipe near the first flushing port and the second flushing port, respectively.

[0019] Furthermore, the filtration device for the return water of the slag remover also includes a slag discharge assembly, which includes a slag discharge valve and a slag discharge pipe. The slag discharge valve is installed on the slag discharge pipe, and one end of the slag discharge pipe is connected to the discharge manhole.

[0020] Furthermore, the filtration device for the return water of the slag remover also includes a sewage discharge component, which includes a sewage discharge valve and a sewage discharge pipe. The sewage discharge valve is installed on the sewage discharge pipe, and one end of the sewage discharge pipe is connected to the sewage discharge port.

[0021] Compared with the prior art, the filtration device for the return water of a slag remover according to an embodiment of the present invention is configured with a return tank, a diversion pipe, a first filter tank, a second filter tank, and a settling tank. Filter screens are installed in the first and second filter tanks, and a sedimentation cone is installed at the bottom of the settling tank. Impurities carried in the return water of the slag remover are first filtered by the filter screens in the first and second filter tanks, blocking impurities larger than the screen mesh. The return water after the first filtration enters the settling tank, where sedimentation allows for the separation of clear liquid and impurities into two layers, thus achieving secondary filtration. The upper clear liquid continuously overflows and is discharged into a collection tank, and then discharged into a water replenishment tank. This ultimately achieves the filtration of the return water of the slag remover, ensuring the accurate operation of the water level switch in the water replenishment tank. Additionally, a discharge manhole is provided on the outer wall of the first and second filter tanks, and a drain outlet is provided at the bottom of the sedimentation cone to facilitate the timely discharge of filtered impurities, ensuring the overall filtration efficiency of the device. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a filtration device for return water of a slag removal machine according to the present invention.

[0023] Figure 2 This is a cross-sectional structural diagram of a filtration device for reflux water of a slag remover according to the present invention, showing the crushing component installed in the reflux tank.

[0024] Figure 3This is a schematic cross-sectional view of the first and second filter tanks in the first embodiment of a filtration device for return water from a slag removal machine according to the present invention.

[0025] Figure 4 This is a schematic cross-sectional view of the settling tank in the first embodiment of a filtration device for return water from a slag remover according to the present invention; and

[0026] Figure 5 This is a cross-sectional structural diagram of a second embodiment of a filtration device for return water from a slag removal machine, showing the installation of a backwashing assembly between the first and second filter tanks.

[0027] Figure label:

[0028] 1000. Return tank; 1200. Inlet; 1300. Diverter;

[0029] 2000. First filter tank; 2100. First filter port; 2200. First outlet;

[0030] 3000. Second filter tank; 3100. Second filter port; 3200. Second water outlet;

[0031] 4000. Diversion pipe;

[0032] 5000. Filter screen;

[0033] 6000. Discharge manhole; 6100. Sealing valve plate; 6200. Slag discharge pipe; 6300. Slag discharge valve;

[0034] 7000. Settling tank; 7100. First collection port; 7200. Second collection port; 7300. Overflow port; 7400. Sedimentation cone; 7410. Sewage outlet; 7420. Sewage pipe; 7430. Sewage valve; 7500. Recovery pipe; 7600. Collection tank;

[0035] 8000. Crushing assembly; 8100. Drive unit; 8200. Crushing rod; 8300. Crushing blade; 8400. Crushing valve;

[0036] 9100. Backwash pipe; 9110. First flush port; 9120. Second flush port; 9200. Backwash valve. Detailed Implementation

[0037] To provide a better understanding of the purpose, structure, features, and functions of this utility model, detailed descriptions are provided below with reference to specific embodiments.

[0038] like Figures 1-4 As shown, a filtration device for return water from a slag removal machine, according to an embodiment of the present invention, includes:

[0039] 1000 reflux tank, 2000 first filter tank, 3000 second filter tank, 4000 diversion pipe, 5000 inclined filter screen, 6000 discharge manhole, 7000 settling tank and 7600 collection tank;

[0040] The top side wall of the return pipe is provided with an inlet 1100, and the bottom of the return tank 1000 is provided with a diversion port 1200.

[0041] The first filter tank 2000 has a first filter port 2100 at the top and a first outlet 2200 at the bottom. The second filter tank 3000 is located on one side of the first filter tank 2000. The second filter tank 3000 has a second filter port 3100 at the top and a second outlet 3200 at the bottom.

[0042] One end of the diversion pipe 4000 is connected to the diversion port 1200, and the other end of the diversion pipe 4000 is connected to the first filter port 2100 and the second filter port 3100 respectively.

[0043] Inclined filter screens 5000 are respectively inclinedly installed inside the first filter tank 2000 and the second filter tank 3000. Discharge manholes 6000 are respectively installed on the outer walls of the first filter tank 2000 and the second filter tank 3000, with the bottom of the discharge manholes 6000 flush with the bottom of the inclined filter screens 5000. A first collection port 7100 and a second collection port 7200 are provided on the side wall near the bottom of the settling tank 7000. The first collection port 7100 and the first outlet 2200 are connected by a recovery pipe. 7500 is connected, the second collection port 7200 and the second outlet 3200 are connected through the recycling pipe 7500, and overflow ports 7300 are respectively provided on the outer wall near the top at both ends of the settling tank 7000. The overflow ports 7300 are connected to the collection tank 7600. At the same time, a sedimentation cone 7400 is provided at the bottom of the settling tank 7000. The first collection port 7100 and the second collection port 7200 are located above the sedimentation cone 7400, and a sewage outlet 7410 is provided at the bottom of the sedimentation cone 7400.

[0044] When a user uses the filtration device for slag remover return water of this utility model to filter the return water, the return water containing impurities in the slag remover enters the inner cavity of the return tank 1000 through the inlet 1100. The return water containing impurities then flows into the first filter tank 2000 and the second filter tank 3000 through the branch outlet 1200 of the return tank 1000. The inclined filter screen 5000 installed in the first filter tank 2000 and the second filter tank 3000 intercepts larger impurities in the return water, thus performing primary filtration treatment on the water containing impurities. The return water after primary filtration then flows through the recovery pipe connecting the first outlet 2200 and the first collection port 7100 and the recovery pipe 75 connecting the second outlet 3200 and the second collection port 7200. The water eventually flows into the settling tank 7000 and gradually fills it. At this time, the return water that has passed through the first-stage filtration remains in the settling tank 7000, allowing smaller impurities in the return water to settle into the sedimentation cone 7400, thus achieving stratification of water and impurities and realizing secondary filtration. The upper clear liquid in the settling tank 7000 gradually rises and overflows from the overflow port 7300 into the settling tank 7000. When the water level in the settling tank 7000 reaches a certain height, it is discharged into the water replenishment tank, thereby improving the sensitivity of the water level detection switch in the water replenishment tank. At the same time, after the filter screens 5000 in the first filter tank 2000 and the second filter tank 3000 have been filtering for a long time, the user can clean the impurities on the filter screens 5000 through the discharge manhole 6000, thereby improving the filtration efficiency of the filter screens 5000.

[0045] Furthermore, such as Figure 2As shown, the filtration device for the return water of the slag remover also includes a crushing assembly 8000. The crushing assembly 8000 includes a drive unit 8100, a crushing rod 8200, and crushing blades 8300. The drive unit 8100 is located at the top of the return tank 1000. One end of the crushing rod 8200 passes through the top of the return tank 1000 and extends into the inner cavity of the return tank 1000. The other end of the crushing rod 8200 is connected to the output end of the drive unit 8100. Multiple crushing blades 8300 are arranged circumferentially on the crushing rod 8200. The return water from the slag remover also contains large impurities. If only the inclined filter screen 5000 is used for interception, a large amount of impurities will quickly accumulate on the surface of the screen, affecting the filtration efficiency of the subsequent return water. Therefore, frequent cleaning is required, increasing the user's labor intensity. Now, by installing a crushing component 8000 in the return tank 1000, the larger impurities in the return water are crushed. The user turns on the drive unit 8100, and the output end of the drive unit 8100 drives the crushing rod 8200 to rotate. The crushing rod 8200 drives multiple crushing blades 8300 on the crushing rod 8200 to rotate synchronously, thereby agitating the return water in the return tank 1000. This causes the larger impurities to rotate with the water flow and collide with the crushing blades 8300. The larger impurities are crushed after colliding with the crushing blades 8300, thereby significantly reducing the larger impurities in the return water, reducing the filtration burden on the inclined filter screen 5000, and reducing the labor intensity of frequent cleaning.

[0046] Furthermore, such as Figure 2 As shown, the filtration device for the return water of the slag remover also includes a crushing valve 8400. The crushing valve 8400 is installed on the diversion pipe 4000 and is close to the diversion port 1200. In order to facilitate the continuous agitation of the return water containing impurities in the return tank 1000 by the crushing component 8000, a crushing valve 8400 is installed between the diversion port 1200 of the return tank 1000 and one end of the diversion pipe. During the crushing process, the crushing valve 8400 is in the closed state, so that the return water containing impurities in the return tank 1000 cannot enter the diversion pipe 4000. At this time, the crushing component 8000 is started to ensure that the crushing component 8000 can continuously crush larger impurities in the return water. After crushing for a specified time, the crushing valve 8400 is opened again, so that the return water containing impurities flows into the first filter tank 2000 and the second filter tank 3000.

[0047] Furthermore, such as Figure 3As shown, in the first embodiment of this utility model, the filtration device for the return water of the slag remover further includes a sealing valve plate 6100, which is hinged to the discharge manhole 6000. After prolonged use, the surface of the filter screen 5000 needs to be cleaned to improve its filtration efficiency. By setting the sealing valve plate 6100 hinged to the discharge manhole 6000, the sealing valve plate 6100 is closed when the first filter tank 2000 and the second filter tank 3000 are in operation. When the user needs to manually clean the filter screen 5000 inside the first filter tank 2000 and the second filter tank 3000, the user can open the sealing valve plate 6100 and directly use a special tool to clean the impurities on the filter screen 5000.

[0048] Preferably, a transparent window is sealed at the center of the sealing valve plate 6100. Users can directly observe the impurities on the inclined filter screen 5000 inside the first filter tank 2000 and the second filter tank 3000 through the transparent window, facilitating timely cleaning of impurities.

[0049] Furthermore, such as Figure 5 As shown, in the second embodiment of this utility model, the filtration device for the return water of the slag remover further includes a backwashing assembly. The backwashing assembly includes a backwashing pipe 9100, a backwashing valve 9200, a backwashing tank, and a backwashing pump set. The backwashing pipe 9100 is T-shaped and has a first flushing port 9110, a second flushing port 9120, and a flushing inlet. The flushing inlet is connected to one end of the backwashing pump set, and the other end of the backwashing pump set is connected to the backwashing tank. In the first embodiment of the present invention, cleaning the impurities of the inclined filter screen 5000 is done manually, which increases the labor intensity of the user. Now, by setting a backwashing component to rinse the inclined filter screen 5000, the impurities on the inclined filter screen 5000 are flushed out. The water required for backwashing is stored in the backwashing tank in advance. When backwashing is required, the backwashing pump group is turned on. The water stored in the backwashing tank is drawn into the backwashing pump group from one end of the backwashing pump group and then sent into the backwashing pipe 9100 from the other end of the backwashing pump group. At this time, the backwashing valve 9200 is in the open state, so that pressurized water is sprayed out from the first flushing port 9110 and the second flushing port 9120 respectively. When the backwashing component is not working, the backwashing valve 9200 is in the closed state to prevent the return water after the first stage of filtration from entering the backwashing tank.

[0050] Furthermore, such as Figure 5As shown, in the second embodiment of this utility model, the first flushing port 9110 and the second flushing port 9120 are respectively disposed on the outer side walls of the first filter tank 2000 and the second filter tank 3000. The first flushing port 9110 is far away from the discharge manhole 6000 on the first filter tank 2000, and the second flushing port 9120 is far away from the discharge manhole 6000 on the second filter tank 3000. The top of the filter screen 5000 is flush with the top of the first flushing port 9110 and the top of the second flushing port 9120, respectively. Multiple backwashing valves 9200 are provided, and the backwashing valves 9200 are disposed on the backwashing pipe 9100, respectively close to the first flushing port 9110 and the second flushing port 9120. During the cleaning of impurities, backwash water is sprayed out from the first flushing port 9110 and the second flushing port 9120. The backwash water directly acts on the inclined surface of the filter screen 5000 where there are no impurities. The impact water flow washes the filter screen 5000, thereby removing impurities from the surface of the filter screen. The water flow containing impurities will be flushed out through the discharge manhole 6000 relative to the first flushing port 9110 or the second flushing port 9120, thus completing the cleaning of impurities from the filter screen 5000 in the first filter tank 2000 and the second filter tank 3000.

[0051] Furthermore, such as Figure 5 As shown, in the second embodiment of this utility model, the filtration device for the return water of the slag remover further includes a slag discharge assembly. The slag discharge assembly includes a slag discharge valve 6300 and a slag discharge pipe 6200. The slag discharge valve 6300 is installed on the slag discharge pipe 6200, and one end of the slag discharge pipe 6200 is connected to the discharge manhole 6000. During the backwashing process, the user opens the slag discharge valve 6300 in advance. After the backwash water flows and washes the filter screen 5000, the backwash water containing impurities enters the slag discharge pipe 6200 through the discharge manhole 6000 and is then discharged into the slag collecting device through the slag discharge pipe 6200. When the backwashing process is not performed, the slag discharge valve 6300 is normally closed to prevent the return water containing impurities from flowing out directly through the slag discharge valve 6300.

[0052] Furthermore, such as Figure 1As shown, the filtration device for the return water of the slag remover also includes a sewage discharge component, which includes a sewage discharge valve 7430 and a sewage discharge pipe 7420. The sewage discharge valve 7430 is installed on the sewage discharge pipe 7420, and one end of the sewage discharge pipe 7420 is connected to the sewage discharge port 7410. After prolonged use, the sedimentation cone 7400 at the bottom of the settling tank 7000 contains a large amount of water-containing sludge impurities. At this time, the slag remover needs to be stopped to prevent the return water from continuing to flow into the settling tank 7000. At the same time, the user opens the sewage discharge valve 7430, and the water-containing sludge impurities in the sedimentation cone 7400 flow into the sewage discharge pipe 7420 by gravity from the sewage discharge port 7410, and then reach the sludge collection pit through the other end of the sewage discharge pipe 7420. The sewage discharge valve 7430 is normally closed except when discharging sewage, thereby sealing the lower end of the settling tank 7000.

[0053] In the description of this utility model, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" and their orientation or positional relationships are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0054] This utility model has been described by the above-described embodiments; however, these embodiments are merely examples for implementing this utility model. It must be noted that the disclosed embodiments do not limit the scope of this utility model. Conversely, any modifications and refinements made without departing from the spirit and scope of this utility model are within the scope of patent protection of this utility model.

Claims

1. A filtration device for return water from a slag removal machine, characterized in that, include: A return tank, wherein an inlet is provided on the top side wall of the return tank and a diversion port is provided at the bottom of the return tank; A first filter tank, wherein a first filter port is provided at the top of the first filter tank and a first water outlet is provided at the bottom of the first filter tank; The second filter tank is disposed on one side of the first filter tank, the top of the second filter tank is provided with a second filter port, and the bottom of the second filter tank is provided with a second water outlet; A diversion pipe is provided, one end of which is connected to the diversion port, and the other end of which is connected to the first filter port and the second filter port respectively. Inclined filter screens are respectively inclinedly disposed inside the first filter tank and the second filter tank; The discharge manholes are respectively provided on the outer walls of the first filter tank and the second filter tank, and the bottom of the discharge manholes is flush with the bottom of the filter screen. A settling tank is provided with a first centralized inlet and a second centralized inlet on the side wall near the bottom. The first centralized inlet is connected to the first outlet through a recycling pipe, and the second centralized inlet is connected to the second outlet through a recycling pipe. Overflow outlets are provided on the outer walls near the top at both ends of the settling tank. A sedimentation cone is provided at the bottom of the settling tank. The first centralized inlet and the second centralized inlet are located above the sedimentation cone. A sludge discharge outlet is provided at the bottom of the sedimentation cone. as well as A collection tank, which is connected to the overflow port.

2. The filtration device for return water from a slag removal machine according to claim 1, characterized in that, It also includes a crushing assembly, which includes a drive unit, a crushing rod, and crushing blades. The drive unit is located at the top of the reflux tank. One end of the crushing rod passes through the top of the reflux tank and extends into the inner cavity of the reflux tank. The other end of the crushing rod is connected to the output end of the drive unit. Multiple crushing blades are arranged circumferentially on the crushing rod.

3. The filtration device for return water from a slag removal machine according to claim 1, characterized in that, It also includes a breaker valve, which is installed on the diversion pipe and close to the diversion port.

4. The filtration device for return water from a slag remover according to claim 1, characterized in that, It also includes a sealing valve plate, which is hinged to the discharge manhole.

5. The filtration device for return water from a slag remover according to claim 1, characterized in that, It also includes a backwashing assembly, which includes a backwashing pipe, a backwashing valve, a backwashing tank, and a backwashing pump set. The backwashing pipe is T-shaped and has a first flushing port, a second flushing port, and a flushing inlet. The flushing inlet is connected to one end of the backwashing pump set, and the other end of the backwashing pump set is connected to the backwashing tank.

6. The filtration device for return water from a slag remover according to claim 5, characterized in that, The first flushing port and the second flushing port are respectively located on the outer side walls of the first filter tank and the second filter tank. The first flushing port is far away from the discharge manhole on the first filter tank, and the second flushing port is far away from the discharge manhole on the second filter tank. The top of the filter screen is flush with the top of the first flushing port and the top of the second flushing port, respectively. Multiple backwashing valves are provided, and the backwashing valves are located on the backwashing pipe near the first flushing port and the second flushing port, respectively.

7. The filtration device for return water from a slag remover according to claim 6, characterized in that, It also includes a slag discharge assembly, which includes a slag discharge valve and a slag discharge pipe. The slag discharge valve is disposed on the slag discharge pipe, and one end of the slag discharge pipe is connected to the discharge manhole.

8. The filtration device for return water from a slag remover according to claim 1, characterized in that, It also includes a sewage discharge assembly, which includes a sewage discharge valve and a sewage discharge pipe. The sewage discharge valve is installed on the sewage discharge pipe, and one end of the sewage discharge pipe is connected to the sewage outlet.

Images