Sewage treatment device with automatic pressure relief function

Abstract

The invention discloses a sewage treater with an automatic pressure relief function, and belongs to the field of sewage treatment.The sewage treater comprises a filter shell, a cleaner and a precipitation activity filtering chamber, the filter shell and the cleaner are used for sludge separation, the precipitation activity filtering chamber is used for multi-stage precipitation, and the side of the filter shell is connected with a water inlet pipe through an extensible connector; the unblocked filtering area is rotated to the water flow impact direction, and meanwhile, the filtered sewage in the filter shell flows into the precipitation activity filtering chamber to be filtered and precipitated. According to the sewage treatment device with the automatic pressure relief function, various purification treatment effects are comprehensively realized, a novel crossed filter piece structure with a hollow design can be adopted, and a working area is rotatably switched and an automatic opening and closing mechanism is arranged; by means of the technical scheme, under the condition of no shutdown, pressure increase and filter efficiency reduction caused by filter face blockage can be rapidly relieved by switching the working areas, meanwhile, filtered matter can be conveniently, rapidly and efficiently cleaned and collected, and the practical effect is better.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, specifically to a sewage treatment device that combines multi-stage filtration and sludge separation, and more specifically to a sewage processor with an automatic pressure relief function. Background Art

[0002] There are already mature supporting processes for the existing technologies in treating sewage. Especially in the filtration stage, for example, an active filtration structure for sewage treatment with the publication number of CN219314635U in the prior art. Its technical solution includes: a filter pipe and a filter rack. The top of the filter pipe is fixedly installed with a water inlet pipe, and the bottom of the filter pipe is fixedly installed with a drain pipe. A plurality of groups of first installation holes are opened on the front of the filter pipe, and a filter rack is movably installed inside the first installation holes. Activated carbon is fixedly installed inside the filter rack, and fixing nets are fixedly installed on the front and back inside the filter rack. An installation plate is fixedly installed on the front of the filter rack, and a plurality of groups of second installation holes are arranged above the front of the filter pipe. Through the combination of various structures, the filtration structure does not need to stop the machine when replacing the active mechanism in the later stage, thus avoiding the situation where the sewage treatment equipment at the front and back ends of the filtration structure needs to cooperate and stop. Moreover, this filtration structure can measure the acidity and turbidity before filtering the sewage.

[0003] Or a sewage treatment device with a multi-stage filtration function with the publication number of CN214457202U, which relates to the technical field of sewage treatment. It includes a machine body, a separation mechanism, and a filtration mechanism. A separation mechanism is fixedly arranged on one side of the machine body, and a filtration mechanism is movably arranged at the bottom of the separation mechanism. The filtration mechanism includes a water inlet, a water guide groove, a sedimentation tank, a sand treatment layer, a limit installation groove, a filter layer, a connecting pipe, and a machine door. By setting a water inlet channel, sewage is introduced into the device and guided onto the separation belt. Then, the separation belt rotates driven by a motor, and larger impurities in the sewage are separated. Then, through the water permeable holes opened on the separation belt and the function of the water guide groove, the separated sewage is introduced into the filtration mechanism through the water inlet for filtration. Thus, the sewage is subjected to multi-stage filtration treatment successively through the sedimentation tank, the sand treatment layer, and the filter layer, effectively enhancing the purification effect of the device and further enhancing the practicality of the device.

[0004] The above-mentioned prior arts are all excellent in the improvement direction of improving the treatment efficiency and flow rate and have high practical value. However, in the process of sewage active filtration and biological purification, due to the different sizes and densities of the filter substances, different requirements are imposed on the filter elements of the filter. Under normal circumstances, when the water pressure inside the water filter increases due to the blockage of the filtration mechanism, the only way to solve the problem is to stop the water inlet to clean the filtration mechanism or switch the input direction, which has low practicality in industrial treatment scenarios. Summary of the Invention

[0005] The object of the present invention is to provide a sewage processor with an automatic pressure relief function, so as to solve the problem proposed in the above background technology that in the sewage active filtration and biological purification processes, due to the different sizes and densities of the filter contents, different requirements are imposed on the filter elements of the filter. Under normal circumstances, when the internal water pressure of the water filter increases due to the blockage of the filtration mechanism, the only way to solve the problem is to stop the water inlet to clean the filtration mechanism or switch the input direction, which has low practicability in industrial treatment scenarios.

[0006] To achieve the above object, the present invention provides the following technical solution: A sewage processor with an automatic pressure relief function, including a filter housing and a cleaner for sludge separation, and a sedimentation active filtration chamber for multi-stage sedimentation. The side of the filter housing is connected to a water inlet pipe through an expandable interface, and the bottom end of the filter housing is connected to a water outlet pipe. At the same time, a filter element driven by a vertical shaft via a motor is arranged in the filter housing. The filter element has a hollow cross-shaped structure for separating large-particle sludge in sewage, etc. Multiple filter holes are opened in the vertical plane, and water flows through the opened filter holes and is discharged from the bottom end of the cross-shaped hollow structure through the water outlet pipe. Moreover, the cross-shaped structure of the filter element divides the filter housing into multiple filtration areas and cleaning areas, and the cleaning areas are distributed below the cleaner. At the same time, a sensor for sensing water pressure and controlling the operation of the motor is installed in the filter housing, which is used to start the motor and drive the filter element to rotate when the pressure in the filter housing exceeds a threshold value, so as to rotate the unblocked filtration area to the water impact direction. At the same time, the filtered sewage in the filter housing flows into the sedimentation active filtration chamber for filtration and sedimentation.

[0007] Furthermore, a self-opening and closing mechanism is also arranged in the filter element. The self-opening and closing mechanism is used to automatically open the filter holes on the corresponding surface of the filter element when the adjacent included angle surface of the filter element is in the working area, and automatically close the filter holes on the corresponding surface when the corresponding surface is in the non-working area.

[0008] Furthermore, the self-opening and closing mechanism includes a vertical bottom plate and a conical plug installed on the surface of the vertical bottom plate.

[0009] Furthermore, the vertical bottom plate is slidably installed in the filter element and is used to control the position of the conical plug in the filter hole through elastic sliding movement, so as to control the on-off of the filter hole.

[0010] Furthermore, a vertical bottom plate is arranged on the inner wall of each filter surface with filter holes of the filter element, that is, two parallel vertical bottom plates are arranged on the inner sides of two adjacent parallel filter surfaces.

[0011] Furthermore, adjacent two of the vertical bottom plates are connected by an elastic mechanism for providing an additional resilient force for the return movement of the vertical bottom plates.

[0012] Furthermore, the elastic mechanism includes a transverse cylinder and cross bars elastically and slidably connected to both ends of the transverse cylinder, and the outer ends of the two cross bars are respectively fixed to the backs of the two vertical bottom plates.

[0013] Furthermore, the inner end of the cross bar is connected with a valve plate vertically distributed, and a one-way channel is provided through the axis of the valve plate and the cross bar.

[0014] Furthermore, the channel is also communicated with the inner cavity of the vertical bottom plate, the space between the two valve plates is also communicated with a one-way inlet hole provided on the transverse cylinder, and at the same time the cavity is also communicated with a flow channel provided in the conical plug.

[0015] Furthermore, a cleaning plate is arranged inside the cleaner above the cleaning area. The cleaning plate is controlled to move up and down via a vertical rod and an electric control device. The cleaning plate can directly enter the cleaning area when moving downward, and leakage holes are provided in the cleaning plate for capturing the filter materials in the cleaning area when the cleaning plate moves downward rapidly.

[0016] Furthermore, the upper end surface of the leakage hole is covered with a baffle plate elastically and rotatably mounted on the cleaning plate, and water holes are vertically provided through the baffle plate.

[0017] The beneficial effects of the present invention are as follows: It comprehensively realizes various purification treatment effects, adopts a novel filter element structure with a cross-shaped and hollow design, and cooperates with the rotation to switch the working area and the setting of the self-opening and closing mechanism. It can quickly relieve the increased pressure and reduced filtration efficiency caused by the blockage of the filter surface by switching the working area without stopping the machine, and at the same time can realize convenient and efficient cleaning and collection of filter materials, with better practical effects, specifically as follows.

[0018] 1. The use of the filter element with a cross-shaped structure can reasonably divide the internal space of the filter by separating the internal working space of the filter, and thus, combined with the rotation effect driven by the motor, can realize the rapid switching of the filter surface. And because different surfaces of the whole filter element can play a filtering role, real-time filtration can continue to be realized during the rotation and switching process, with higher efficiency, and thus the pressure relief effect is better. As a further aspect, the automatic opening and closing mechanism composed of the vertical bottom plate and the conical plug can automatically open the filter surface in the working area and close the filter surface in the cleaning area according to different rotation states of the filter element, in cooperation with the impact effect generated by the water flow, ensuring that the work in different areas does not affect each other and avoiding the problem that the filter materials cannot be effectively cleaned in the traditional means, with better use effects.

[0019] As a further aspect, the structural design of the horizontal cylinder and the cross bar can not only generate a resilient support force for the movement of the vertical bottom plate, but also change the pressure in the horizontal cylinder by the synchronous movement of the cross bar and the valve plate, so as to achieve the effect of guiding the fluid to move in a specified direction and cleaning the filter substances that may cover the filter surface in the cleaning area.

[0020] 2. The structural design of the cleaner can enable the vertical movement of the cleaning plate to respectively achieve the effects of capturing filter substances and screening out water flow by directly connecting the mechanism with the cleaning area, and the working process is not affected by the filtering working area. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the present invention Figure 2 It is a schematic diagram of the overall structure of the filter housing of Embodiment 1 of the present invention; Figure 3 For the present invention Figure 2 It is a schematic diagram of the cross-sectional structure of the filter housing in the present invention; Figure 4 It is a schematic diagram of the distribution structure of the filter elements of the filter of the present invention; Figure 5 It is a schematic diagram of the distribution structure of the vertical bottom plate of the present invention; Figure 6 It is a schematic diagram of the separation structure of the vertical bottom plate and the filter elements of the filter of the present invention; Figure 7 It is a schematic diagram of the working state structure of Embodiment 1 of the present invention; Figure 8 It is a schematic diagram of the internal structure of the cleaner of Embodiment 2 of the present invention; Figure 9 It is a schematic diagram of the cleaning plate structure of the present invention; Figure 10 It is a schematic diagram of the internal structure of the vertical bottom plate of the present invention; Figure 11 It is a schematic diagram of the distribution structure of the valve plate of the present invention.

[0022] In the figure: 1. Filter housing; 2. Cleaner; 3. Water inlet pipe; 4. Motor; 5. Vertical shaft; 6. Filter elements; 7. Vertical bottom plate; 8. Conical plug; 9. Cleaning plate; 10. Vertical rod; 11. Leakage hole; 12. Baffle; 13. Horizontal cylinder; 14. Cross bar; 15. Valve plate; 16. Channel; 17. Cavity; 18. Precipitation active filtration chamber. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1-11 , the present invention provides the following technical solutions: Embodiment 1: In this embodiment, in order to solve the problems existing in the prior art, it is disclosed as Figures 1-3The technical solution shown includes a filter housing 1 for sludge separation, a cleaner 2, and a sedimentation active filtration chamber 18 for multi-stage sedimentation. The side of the filter housing 1 is connected to a water inlet pipe 3 through an expandable interface, and the bottom end of the filter housing 1 is connected to a water outlet pipe. At the same time, a filter element 6 driven by a vertical shaft 5 via a motor 4 is arranged in the filter housing 1. The filter element 6 is in a hollow cross-shaped structure for separating large particle sludge in sewage, etc. Multiple filter holes are opened in the vertical plane. Water flows through the opened filter holes and is discharged from the bottom end of the cross-shaped hollow structure through the water outlet pipe. The cross-shaped structure of the filter element 6 divides the filter housing 1 into multiple filtration areas and cleaning areas, and the cleaning areas are distributed below the cleaner 2. At the same time, a sensor for sensing water pressure and controlling the operation of the motor 4 is installed in the filter housing 1, which is used to start the motor 4 and drive the filter element 6 to rotate when the pressure in the filter housing 1 exceeds a threshold value, so that the unblocked filtration area is rotated to the water impact direction. At the same time, the filtered sewage in the filter housing 1 flows into the sedimentation active filtration chamber 18 for filtration and sedimentation. The biggest difference between the above solution and the prior art is the adoption of a movable filter element 6. At the same time, since the filter element 6 is in a cross-shaped or other multi-sided cross structure and the structure is internally hollow, and the filter screen is opened on the plane of the filter element 6. Taking the cross-shaped structure as an example, the filter element 6 divides the internal space of the filter housing 1 into four areas. Ideally, all four areas can be used for water filtration. After filtration, the water will be discharged through the water outlet pipe at the bottom end of the cross-shaped hollow area. The actual working condition is: in order to meet the functions of blockage cleaning and automatic pressure relief of the water filter without shutting down, a cleaner 2 is installed at the top of one of the four areas. When one of the other three areas is in the working state, that is, after the area connected to the water inlet pipe 3 has continuously filtered for a certain period of time, due to the surface being blocked by the filter medium, the internal pressure of the filter housing 1 gradually increases. When it exceeds the set threshold value, a signal is triggered by the sensor and the motor 4 drives the filter element 6 to rotate 90 degrees through the vertical shaft 5. At this time, the surface of the filter element 6 in the non-working area will rotate into the working area, and the surface of the filter element 6 in the original working area will rotate below the cleaner 2, thus achieving the effect of automatic pressure relief, and it can also realize the switching of the working area of the key filtration components in the filter and facilitate cleaning without shutting down the machine.

[0025] In the solution disclosed in this embodiment, it is to ensure that the surface of the filter element 6 rotated to the non-working area, especially the cleaning area, is in a state where the filter holes are closed, so that the water flow entering the cross-shaped space through the working area of the filter element 6 will not continuously flow out from the non-working area and affect the corresponding operations in the corresponding area, such as the operation of the cleaner 2 in the cleaning area, as Figures 4-6As shown, a self-opening and closing mechanism is also provided in the filter element 6. The self-opening and closing mechanism is used to automatically open the filter holes on the corresponding surface of the filter element 6 when the adjacent included angle surface of the filter element 6 is in the working area, and automatically close the filter holes on the corresponding surface when the corresponding surface is in the non-working area. The self-opening and closing mechanism includes a vertical bottom plate 7 and a conical plug 8 installed on the surface of the vertical bottom plate 7. The vertical bottom plate 7 is slidably installed in the filter element 6 and is used to control the position of the conical plug 8 in the filter hole through elastic sliding movement, so as to control the on-off of the filter hole. At the same time, a vertical bottom plate 7 is provided on the inner wall of each filter surface with filter holes of the filter element 6, that is, two parallel vertical bottom plates 7 are provided on the inner sides of two adjacent parallel filter surfaces. In the normal state, the vertical bottom plate 7 is close to the inner surface of the filter surface of the filter element 6 in a fitting or non-fitting manner, and the conical plug 8 plugs the filter hole. When the corresponding filter surface rotates to the working area, the water flow impact force will impact and move the conical plug 8 at the corresponding position and cooperate with the vertical bottom plate 7. At this time, the filter hole is in an open state. Therefore, the water entering the filter housing 1 through the water inlet pipe 3 will enter the hollow structure of the filter element 6 after passing through the open filter holes, and finally be discharged from the water outlet pipe at the bottom to complete the filtration. The filter holes not in the working area lack the positive impact force of water and are always in a closed state. Even if the water flows in from the inside of the filter element 6, the impact force or extrusion force will act on the vertical bottom plate 7, so that the remaining non-working space is in a state of no water or no flowing water, which is convenient for the cleaner 2 to clean up.

[0026] Embodiment 2: The following solution is disclosed in this embodiment. Limited by the manufacturing cost, this solution is not applicable in an economical water filter, but it can achieve a better auxiliary cleaning effect. Specifically, as Figure 9 and Figure 10As shown, adjacent vertical bottom plates 7 are connected by an elastic mechanism for providing an additional spring-back force for the return movement of the vertical bottom plates 7. The elastic mechanism includes a transverse cylinder 13 and cross bars 14 elastically and slidably connected to both ends of the transverse cylinder 13. The outer ends of the two cross bars 14 are respectively fixed to the back surfaces of the two vertical bottom plates 7. The inner ends of the cross bars 14 are connected with valve plates 15 vertically distributed. One-way channels 16 are formed through the valve plates 15 and the axes of the cross bars 14. The channels 16 are also communicated with the internal cavities 17 of the vertical bottom plates 7. The space between the two valve plates 15 is also communicated with a one-way inlet hole formed in the transverse cylinder 13. At the same time, the cavity 17 is also communicated with the flow channel formed in the conical plug 8. When the vertical bottom plate 7 in the working area moves, it will drive the corresponding valve plate 15 to move. Therefore, the fluid between the two valve plates 15 will flow out through one or both of the channels 16. However, since the resistance of the channel 16 on the working side is greater due to the impact of water flow, the fluid will flow out through the channel 16 facing the cleaning area and finally spray out through the cavity 17 in the vertical bottom plate 7 and the flow channel on the conical plug 8, so as to avoid the residue of the filter on the surface of the conical plug 8 or the filter element 6 of the filter.

[0027] The solution disclosed in this embodiment specifically describes the components of the cleaner 2, such as Figures 7-8 As shown, a cleaning plate 9 is arranged inside the cleaner 2 above the cleaning area. The cleaning plate 9 moves up and down under the control of a vertical rod 10 and an electric control device. The cleaning plate 9 can directly enter the cleaning area when moving downward. The cleaning plate 9 is also provided with leakage holes 11 for capturing the filter in the cleaning area when the cleaning plate 9 moves downward quickly. The upper end surface of the leakage hole 11 is covered with a baffle plate 12 elastically and rotatably installed on the cleaning plate 9, and water holes are vertically formed through the baffle plate 12. When the filter surface in the working area containing a number of filters rotates to the cleaning area, that is, the lower area of the cleaner 2, since the vertical bottom plate 7 in this area rebounds to make the conical plug 8 re-block the filter holes, there will be no flowing water in the cleaning area at this time. Then, the electric control or other control mechanisms drive the cleaning plate 9 to move downward quickly through the vertical rod 10. During this process, the reaction force generated by the static water flow will cause the baffle plate 12 to turn upward and unfold. At the same time, the lower end surface of the baffle plate 12 can be designed as a curved surface structure concave toward the bottom end of the leakage hole 11, so as to better guide the filter in the cleaning area to pass through the leakage hole 11 and enter above the baffle plate 12. During the upward movement of the baffle plate 12, the baffle plate 12 elastically closes to block the leakage of the filter, while the water can pass through the water holes in it, ensuring that the filter fully enters the cleaner 2, which is convenient for taking out the separated filter through the cleaner 2.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sewage treatment device with an automatic pressure relief function, comprising a filter housing (1) and a cleaner (2) for sludge separation and a sedimentation active filter chamber (18) for multi-stage sedimentation, wherein the side of the filter housing (1) is connected to a water inlet pipe (3) via an expandable interface, and the bottom of the filter housing (1) is connected to a water outlet pipe, and a filter element (6) driven by a motor (4) and a vertical shaft (5) is arranged in the filter housing (1), characterized in that: The filter element (6) is a hollow cross-shaped structure used for separating large particles of sludge and the like in sewage, wherein a plurality of filter holes are opened on the vertical plane, water flows through the opened filter holes and is discharged from the bottom end of the cross hollow structure from the outlet pipe, and the cross-shaped structure of the filter element (6) divides the filter housing (1) into a plurality of filter areas and cleaning areas, wherein the cleaning areas are distributed below the cleaner (2), and at the same time, a sensor for sensing water pressure and controlling the operation of the motor (4) is installed in the filter housing (1), and is used to start the motor (4) and drive the filter element (6) to rotate when the pressure in the filter housing (1) exceeds a threshold value, so as to rotate the unblocked filter area to the direction of water flow impact, and at the same time, the filtered sewage in the filter housing (1) flows to the sedimentation active filter chamber (18) for filtration and sedimentation.

2. A sewage treatment device with automatic pressure relief function according to claim 1, characterized in that: The filter element (6) is also provided with a self-opening and closing mechanism, which is used to automatically open the filter holes on the corresponding surface of the filter element (6) when the adjacent angled surface of the filter element (6) is in the working area, and automatically close the filter holes on the corresponding surface when the corresponding surface is in the non-working area.

3. A sewage treatment device with automatic pressure relief function according to claim 2, characterized in that: The self-opening and closing mechanism comprises a vertical bottom plate (7) and a conical plug (8) mounted on the surface of the vertical bottom plate (7), wherein the vertical bottom plate (7) is slidably mounted in the filter element (6) and is used to control the position of the conical plug (8) in the filter hole through elastic sliding movement, thereby controlling the on-off of the filter hole.

4. A sewage treatment device with automatic pressure relief function according to claim 3, characterized in that: The inner wall of each filter surface with filter holes of the filter element (6) is provided with a vertical bottom plate (7), that is, two parallel vertical bottom plates (7) are provided on the inner sides of two adjacent parallel filter surfaces.

5. A sewage treatment device with automatic pressure relief function according to claim 4, characterized in that: Two adjacent vertical bottom plates (7) are connected via an elastic mechanism, which is used to provide additional rebound force for the return movement of the vertical bottom plates (7).

6. A sewage treatment device with automatic pressure relief function according to claim 5, characterized in that: The elastic mechanism comprises a transverse cylinder (13) and transverse rods (14) elastically slidably connected to the two ends of the transverse cylinder (13), and the outer ends of the two transverse rods (14) are respectively fixed to the back sides of the two vertical bottom plates (7).

7. A sewage treatment device with automatic pressure relief function according to claim 6, characterized in that: The inner end of the cross bar (14) is connected to a vertically distributed valve plate (15), and a one-way channel (16) is provided on the axis of the valve plate (15) and the cross bar (14). The channel (16) is also connected to an internal cavity (17) of the vertical bottom plate (7). The space between the two valve plates (15) is also connected to a one-way inlet hole provided on the cross cylinder (13), and the cavity (17) is also connected to a flow channel provided in the conical plug (8).

8. The sewage treatment device with automatic pressure relief function according to claim 1, characterized in that: The cleaner (2) is provided with a cleaning plate (9) located above the cleaning area. The cleaning plate (9) is controlled to move upward and downward via a vertical rod (10) and an electric control device. The cleaning plate (9) can move downward and directly enter the cleaning area. A leak hole (11) is also provided in the cleaning plate (9) for capturing filtered matter in the cleaning area when the cleaning plate (9) moves downward rapidly.

9. A sewage treatment device with automatic pressure relief function according to claim 8, characterized in that: The upper end surface of the leakage hole (11) is covered with a baffle (12) elastically rotatably mounted on the cleaning plate (9), and the baffle (12) is provided with water holes vertically penetrating therethrough.

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