Car washing wastewater filtering device

Abstract

The utility model provides a car washing wastewater filtering device, which comprises a box body and a plurality of filtering frames, the upper end of the box body is open and is rotatably connected with a box cover, the box cover is provided with a water inlet, the bottom of the box body is provided with a water outlet, the plurality of filtering frames are sequentially stacked in the box body, the frame bottom of each filtering frame is provided with a filtering hole, and the box cover is provided with a water outlet. A plurality of layers of steel balls are arranged in each filtering frame and form water flow gaps, the size of the steel balls in the filtering frames is larger than that of the filtering holes in the frame bottoms of the filtering frames, and the sizes of the filtering holes in the frame bottoms of the filtering frames and the sizes of the steel balls in the filtering frames are sequentially reduced from top to bottom. According to the car washing wastewater filtering device, car washing wastewater is filtered through the multiple filtering frames, and when the filtering capacity is reduced, only the filtering frames and the steel balls need to be detached and cleaned, and then the filtering frames and the steel balls are reinstalled. In the process, no material is consumed, the filtering cost is reduced, and the treatment cost of the car washing wastewater is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of car wash wastewater treatment, and in particular to a car wash wastewater filtering device. Background Art

[0002] In recent years, there are more and more cars in people's lives, and cars have gradually become people's main means of transportation. After driving for a period of time, cars often accumulate dust, mud spots and stains. After using a car for a period of time, it is often necessary to wash it. Therefore, a large number of car wash shops and car washes have appeared in cities and towns.

[0003] The common car washing mode is to wash the car with water, and spray the washing water onto the car through a high-pressure gun to achieve the washing of the car. In order to save water, car wash places usually treat the car wash wastewater, such as using filtering equipment to filter the car wash wastewater, to achieve the filtration treatment of the washing water, so that the washing water can be reused, and also to achieve the purpose of reducing the cost of car washing.

[0004] At present, the treatment equipment on the market generally achieves treatment through filtration, and the filter layer is mostly composed of activated carbon. After filtering for a period of time, the activated carbon will adsorb colloids, particles and impurities and reach saturation, and the filtration performance will be greatly reduced, and new activated carbon needs to be replaced. In addition, car washes use water frequently, and the number of filtration treatments is also more, which leads to more frequent replacement of activated carbon, resulting in higher costs for car wash wastewater filtration. Utility Model Content

[0005] The present application provides a car wash wastewater filtering device, which filters the car wash wastewater through multiple filter frames, and when the filtering capacity is reduced, the filter frames and steel balls only need to be disassembled and cleaned, and then reinstalled. This process does not consume materials, reduces the filtering cost, and reduces the treatment cost of car wash wastewater.

[0006] In order to solve the above technical problems, this application adopts the following technical solutions:

[0007] A car wash wastewater filtering device comprises a box body and a plurality of filter frames, the upper end of the box body is open and rotatably connected to a box cover, the box cover is provided with a water inlet, the bottom of the box body is provided with a drain outlet, a plurality of the filter frames are stacked in sequence in the box body, the bottom of the filter frame is provided with filter holes, each filter frame is provided with multiple layers of steel balls, the multiple layers of steel balls form a water flow gap, the size of the steel balls in the filter frame is larger than the size of the filter holes at the bottom of the filter frame, the size of the filter holes at the bottom of the filter frames and the size of the steel balls in the filter frames are reduced from top to bottom.

[0008] When in use, car wash wastewater flows in from the water inlet and enters the top filter frame. Impurities in the car wash wastewater are intercepted by the steel balls. The car wash wastewater can flow through the water flow gap formed by the steel balls and enter the next filter frame through the filter holes at the bottom of the filter frame. The size of impurities that can be intercepted by multiple filter frames decreases from top to bottom, so that the car wash wastewater is filtered and treated, and finally discharged from the drain port for reuse. After a period of use, the water flow gap is basically filled with impurities, and the filtering capacity is reduced. The box cover is opened, and multiple filter frames are taken out. The filter frames and steel balls are cleaned, and then they are reinstalled into the box.

[0009] Compared with the existing technology, the car wash wastewater filtration device achieves filtration of car wash wastewater through multiple filter frames, and when the filtration capacity is reduced, it is only necessary to disassemble and clean the filter frames and steel balls, and then reinstall them. This process does not consume materials, reduces the filtration cost, and reduces the treatment cost of car wash wastewater.

[0010] In one embodiment of the present application, the diameters of the steel balls in each multi-layer steel ball are equal.

[0011] In one embodiment of the present application, the thickness of the multi-layer steel beads is three-fifths to four-fifths of the depth of the filter frame.

[0012] In one embodiment of the present application, a limit plate is provided at the frame opening of the filter frame, a limit groove is provided at the frame bottom of the filter frame, and the limit groove of the upper filter frame cooperates with the limit plate of the lower filter frame.

[0013] In one embodiment of the present application, the limiting plate is provided with a connecting through hole, the groove wall of the limiting groove is provided with a connecting threaded hole, and the connecting threaded hole of the upper filter frame is connected to the connecting through hole of the lower filter frame by bolts.

[0014] In one embodiment of the present application, a connecting through hole of the uppermost filter frame is provided with a hoisting rope.

[0015] In one embodiment of the present application, an annular support plate is provided at the bottom of the inner wall of the box body, the drain port is located below the annular support plate, and the lowermost filter frame is located on the annular support plate.

[0016] In one embodiment of the present application, a plurality of reinforcing ribs are provided below the annular support plate, and the plurality of reinforcing ribs are arranged at intervals along the circumference of the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a car wash wastewater filtering device provided in one embodiment of the present application;

[0019] Figure 2 A schematic cross-sectional view of a car wash wastewater filtration device provided in one embodiment of the present application;

[0020] Figure 3 A schematic diagram of the three-dimensional structure of a filter frame used in a car wash wastewater filter device provided in one embodiment of the present application;

[0021] Figure 4 A schematic diagram of the structure of the filter holes at the bottom of the filter frame used in the car wash wastewater filter device provided in one embodiment of the present application.

[0022] Reference numerals:

[0023] 100, box body; 110, box cover; 120, water inlet; 130, drain outlet; 140, annular support plate; 150, reinforcing ribs; 200, filter frame; 210, filter hole; 220, limiting plate; 221, connecting through hole; 230, limiting groove; 231, connecting threaded hole; 300, steel ball. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present application.

[0025] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] In the description of the present application, unless otherwise specified, “plurality” means two or more.

[0027] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] Figure 1 A schematic diagram of the three-dimensional structure of a car wash wastewater filtering device provided in one embodiment of the present application. Figure 2 This is a schematic cross-sectional structural diagram of a car wash wastewater filtering device provided in one embodiment of the present application. Figure 3 A schematic diagram of the three-dimensional structure of a filter frame used in a car wash wastewater filter device provided in one embodiment of the present application. Figure 4 A schematic diagram of the structure of the filter holes at the bottom of the filter frame used in the car wash wastewater filter device provided in one embodiment of the present application.

[0029] The embodiment of the present application provides a car wash wastewater filtering device, such as Figure 1 and Figure 2 As shown, it includes a box body 100 and a plurality of filter frames 200, wherein the box body 100 is a structure for installing and supporting other components, and is also a container for the circulation of car wash wastewater, and the filter frame 200 is a component for filtering the car wash wastewater.

[0030] like Figure 1 As shown, the upper end of the box body 100 is open and rotatably connected to a box cover 110, and the box body 100 can be opened and closed by rotating the box cover 110. The box cover 110 is provided with a water inlet 120, and the bottom of the box body 100 is provided with a drain port 130, so that car wash waste water can be introduced into the box body 100, and the filtered water can be discharged from the drain port 130.

[0031] like Figure 2 As shown, a plurality of filter frames 200 are stacked in sequence in the box body 100 , and the outer dimensions of the filter frames 200 are slightly smaller than the inner dimensions of the box body 100 , so as to facilitate the installation and removal of the filter frames 200 .

[0032] The bottom of the filter frame 200 is provided with a filter hole 210 so that the car wash waste water can enter the lower filter frame 200 from the upper filter frame 200 .

[0033] Each filter frame 200 is provided with multiple layers of steel balls 300, which form a water flow gap. Impurities larger than the water flow gap are intercepted by the steel balls 300, while impurities and water smaller than the water flow gap can pass through the water flow gap.

[0034] The size of the steel balls 300 in the filter frame 200 is larger than the size of the filter holes 210 at the bottom of the filter frame 200 , and the steel balls 300 will not fall from the filter holes 210 .

[0035] The size of the filter holes 210 at the bottom of the multiple filter frames 200 and the size of the steel balls 300 in the multiple filter frames 200 decrease from top to bottom. That is, the size of impurities that can be intercepted by the multiple filter frames 200 decreases from top to bottom, thereby realizing multi-stage filtration of car wash wastewater.

[0036] The following is an example: for example, there are three filter frames 200 in the box 100, and each of the three filter frames 200 has multiple layers of steel balls 300. The diameters of the steel balls 300 are 9 mm, 6 mm, and 3 mm from top to bottom. The sizes of impurities that can be retained by the three multi-layer steel balls 300 (calculated at approximately 40% of the diameter of the steel balls 300) are approximately greater than 3.6 mm, 2.4 mm to 3.6 mm, and 1.2 mm to 2.4 mm, respectively, thereby achieving multi-stage filtration.

[0037] It should be noted that if Figure 4 As shown, the shape of the filter hole 210 at the bottom of the filter frame 200 is irregular (at least not circular, but square, triangle, etc.), such as a five-pointed star, so as to avoid the steel ball 300 stopping at the filter hole 210 and completely blocking the filter hole 210. For example, when the filter hole 210 is circular, the steel ball 300 stopping at the filter hole 210 will inevitably completely block the orifice of the filter hole 210, which greatly reduces the flow capacity of the car wash wastewater filter device. For another example, when the filter hole 210 is square, the steel ball 300 stopping at the filter hole 210 will block a part of the orifice of the filter hole 210 (the four corners of the square are not blocked), which will also reduce the flow capacity of the car wash wastewater filter device. Therefore, the filter hole 210 is designed to be an irregular shape, even if the steel ball 300 stops at the filter hole 210, the filter hole 210 will not be completely blocked, and the car wash wastewater can still pass smoothly.

[0038] When in use, car wash wastewater flows in from the water inlet 120 and enters the top filter frame 200. Impurities in the car wash wastewater are intercepted by the steel balls 300. The car wash wastewater can flow through the water flow gap formed by the steel balls 300 and enter the next filter frame 200 through the filter holes 210 at the bottom of the filter frame 200. The size of impurities that can be intercepted by multiple filter frames 200 decreases from top to bottom, and the car wash wastewater is filtered and treated, and finally discharged from the drain port 130 for reuse. After a period of use, the water flow gap is basically filled with impurities, and the filtering capacity is reduced. The box cover 110 is opened, and multiple filter frames 200 are taken out, and the filter frames 200 and steel balls 300 are cleaned, and then reloaded into the box body 100.

[0039] Compared with the prior art, the car wash wastewater filtering device achieves the filtration of car wash wastewater through multiple filter frames 200, and when the filtration capacity is reduced, it is only necessary to disassemble and clean the filter frames 200 and the steel balls 300, and then reinstall them. This process does not consume materials, reduces the filtration cost, and reduces the treatment cost of car wash wastewater.

[0040] In some embodiments, the diameters of the steel balls 300 in each multi-layer steel ball 300 are equal, and the sizes of the steel balls 300 in each filter frame 200 are consistent. There will be no small steel balls 300 filling the gaps between large steel balls 300, and the water flow gaps remain basically consistent.

[0041] In some embodiments, the thickness of the multi-layer steel balls 300 is three-fifths to four-fifths of the depth of the filter frame 200. In other words, the steel balls 300 do not fill the filter frame 200, which is convenient for the flow of car wash wastewater falling from above and can also provide some accommodation space for impurities.

[0042] In some embodiments, Figure 3 As shown, the frame opening of the filter frame 200 is provided with a limiting plate 220, and the frame bottom of the filter frame 200 is provided with a limiting groove 230, and the limiting groove 230 of the upper filter frame 200 cooperates with the limiting plate 220 of the lower filter frame 200. The upper filter frame 200 can be roughly regarded as a frame cover of the lower filter frame 200, and the cooperation between the limiting plate 220 and the limiting groove 230 can prevent the two from being misaligned.

[0043] In some embodiments, Figure 3 As shown, a connecting through hole 221 is provided on the limiting plate 220, and a connecting threaded hole 231 is provided on the groove wall of the limiting groove 230. The connecting threaded hole 231 of the upper filter frame 200 is connected with the connecting through hole 221 of the lower filter frame 200 by bolts, so that multiple filter frames 200 are connected as an integral component. When taking out the filter frame 200, it can be taken out as a whole, which is more convenient.

[0044] In some embodiments, a hoisting rope is provided in the connection through hole 221 of the uppermost filter frame 200. When the filter frame 200 is taken out and installed, the hoisting rope can be hoisted by a hoisting device for convenient operation.

[0045] In some embodiments, Figure 2 As shown, an annular support plate 140 is provided at the bottom of the inner wall of the box body 100, the drain port 130 is located below the annular support plate 140, the lowest filter frame 200 is located on the annular support plate 140, and there is a gap between the lowest filter frame 200 and the bottom plate of the box body 100 to facilitate the flow of water flowing out of the lowest filter frame 200 and to facilitate the water to flow out of the drain port 130.

[0046] In some embodiments, Figure 2 As shown, a plurality of reinforcing ribs 150 are provided below the annular support plate 140 , and the plurality of reinforcing ribs 150 are arranged at intervals along the circumference of the box body 100 , thereby enhancing the structural strength of the annular support plate 140 and enhancing the supporting capacity.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A car wash wastewater filtration device, characterized in that: include: A box body, wherein the upper end of the box body is open and rotatably connected to a box cover, the box cover is provided with a water inlet, and the bottom of the box body is provided with a drain outlet; A plurality of filter frames are stacked in sequence in the box body, a filter hole is arranged at the bottom of the filter frame, and each filter frame is provided with a plurality of layers of steel balls, and the plurality of layers of steel balls form a water flow gap, and the size of the steel balls in the filter frame is larger than the size of the filter hole at the bottom of the filter frame, and the size of the filter hole at the bottom of the plurality of filter frames and the size of the steel balls in the plurality of filter frames decrease from top to bottom.

2. The car wash wastewater filtering device according to claim 1, characterized in that: The diameters of the steel balls in each multi-layer steel ball are equal.

3. The car wash wastewater filtering device according to claim 2, characterized in that: The thickness of the multi-layer steel beads is three-fifths to four-fifths of the depth of the filter frame.

4. The car wash wastewater filtering device according to claim 1, characterized in that: The frame opening of the filter frame is provided with a limiting plate, the frame bottom of the filter frame is provided with a limiting groove, and the limiting groove of the upper filter frame matches the limiting plate of the lower filter frame.

5. The car wash wastewater filtering device according to claim 4, characterized in that: The limiting plate is provided with a connecting through hole, the groove wall of the limiting groove is provided with a connecting threaded hole, and the connecting threaded hole of the upper filter frame is connected to the connecting through hole of the lower filter frame by bolts.

6. The car wash wastewater filtering device according to claim 5, characterized in that: The connecting through hole of the uppermost filter frame is provided with a hoisting rope.

7. The car wash wastewater filtering device according to any one of claims 1 to 6, characterized in that: An annular support plate is provided at the bottom of the inner wall of the box body, the drain port is located below the annular support plate, and the lowest filter frame is located on the annular support plate.

8. The car wash wastewater filtering device according to claim 7, characterized in that: A plurality of reinforcing ribs are arranged below the annular support plate, and the plurality of reinforcing ribs are arranged at intervals along the circumference of the box body.

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