Residual liquid treatment system

Abstract

The utility model provides a residual liquid treatment system which comprises a cyclone hydraulic separator, a filtering device and a supporting device, and the cyclone hydraulic separator is provided with an inlet, a liquid outlet and a slag outlet; the filtering device comprises filter paper, and at least part of the filter paper is opposite to the slag outlet; the supporting device comprises a supporting plate, at least part of the supporting plate is attached to the surface, away from the slag outlet, of the filter paper so that the filter paper corresponding to the slag outlet can be supported to be in a plane shape, and the supporting plate is provided with a guiding part so that liquid filtered through the filter paper can be guided to a preset position. The cyclone hydraulic separator is used for primarily separating the residual liquid to separate out clear liquid and slag powder pollution liquid with larger weight, so that filter paper of the filter device can be used for further filtering the slag powder pollution liquid with larger weight to leave impurities such as scrap iron on the filter paper; furthermore, impurities such as scrap iron on the filter paper can be screened to extract a part which can be further used, so that waste can be reduced, and the cost of a single vehicle can be reduced.

Description

Technical Field

[0001] The present application relates to the field of automobile production technology, and in particular to a residual liquid treatment system. Background Art

[0002] In the process of automobile production, after the body in white goes through processes such as stamping, welding, and grinding, it often carries a part of drawing oil, welding slag, welding balls, and grinding iron filings to the painting shop. The pre-treatment process in the painting shop will first degrease and clean the body in white to wash away pollutants such as oil stains, iron filings, and iron powder carried by the body in white.

[0003] However, due to the impurities such as iron filings contained in the pollutants, direct discharge will cause waste and increase the cost of each vehicle. Utility Model Content

[0004] The present application provides a residual liquid treatment system, which aims to solve a technical problem that: due to the impurities such as iron filings contained in the pollutants, direct discharge will cause waste and increase the cost of a single vehicle.

[0005] In order to solve the above technical problems, an embodiment of the present application provides a residual liquid processing system, which comprises: a hydrocyclone separator, a filtering device and a supporting device, wherein the hydrocyclone separator has an inlet, a liquid outlet and a slag outlet; the filtering device comprises: filter paper, at least a portion of the filter paper is opposite to the slag outlet; the supporting device comprises: a supporting plate, at least a portion of the support plate is attached to the surface of the filter paper away from the slag outlet, so as to support the filter paper corresponding to the slag outlet into a plane, and the support plate is provided with a guiding portion to guide the liquid filtered by the filter paper to a predetermined position.

[0006] In some embodiments, the guide portion is a through hole opened on the support plate, and an opening at one end of the through hole is opposite to the filter paper on the support plate; or, the guide portion is a guide groove opened on the surface of the support plate that is attached to the filter paper.

[0007] In some embodiments, the filtering device also includes: a first winding member and a second winding member; the first winding member is used to wind the filter paper; the second winding member can rotate regularly under the action of a driving structure, and when the second winding member rotates, the filter paper on the first winding member passes through the slag outlet and is wound onto the second winding member.

[0008] In some embodiments, the filtering device also includes: a connecting bracket and a paper pressing structure; the connecting bracket is connected to the support plate and is at least partially located on a side of the support plate corresponding to the hydrocyclone separator, and a avoidance space is provided at a position of the connecting bracket corresponding to the hydrocyclone separator; the paper pressing structure is connected to the connecting bracket and applies pressure to the outer side of the paper outlet end of the filter paper on the first winding member connected to the connecting bracket.

[0009] In some embodiments, the paper pressing structure includes: a fixing member and a spring sheet, wherein the fixing member is connected to a side of the connecting bracket away from the support plate and extends in a direction away from the connecting bracket, one end of the spring sheet is connected to the fixing member, and the other end is opposite to the fixing member close to one end of the connecting bracket; the first winding member is arranged between the other end of the spring sheet and an end of the fixing member close to the connecting bracket.

[0010] In some embodiments, the filtering device also includes: a plurality of first rollers, the first rollers being rotatably arranged on a side of the support plate corresponding to the cyclone separator, the filter paper being attached to a surface of the first roller close to the support plate and being conveyed in the direction of the second winding member during the rotation of the first roller; wherein the plurality of first rollers press the filter paper flat on the support plate.

[0011] In some embodiments, the first winding member and the second winding member correspond to the two sides of the slag outlet respectively; the filtering device also includes: a second roller and a slag receiving car; the second roller is arranged on the side of the second winding member away from the first winding member, and corresponds to between the second winding member and the hydrocyclone separator, the filter paper adheres to a part of the surface of the second roller and is transmitted toward the direction of the second winding member during the rotation of the second roller; the slag receiving car is arranged on the side of the second winding member away from the first winding member, and the opening of the slag receiving car is opposite to the side of the second roller away from the first winding member.

[0012] In some embodiments, the support device also includes: a clear liquid collection box, a liquid outlet pipeline and a liquid level detection pipeline; the clear liquid collection box is a box structure formed by a plurality of plates including the support plate, the guide portion is a plurality of through holes opened on the support plate, and the opening at one end of the through hole is opposite to the filter paper on the support plate; the liquid outlet pipeline is connected to the interior of the clear liquid collection box; the liquid level detection pipeline is connected to the interior of the clear liquid collection box.

[0013] In some embodiments, the liquid outlet pipeline is provided with a recovery pump, a one-way valve and a first ball valve in sequence along the flow direction of the liquid in the liquid outlet pipeline; the liquid level detection pipeline is provided with a third ball valve and a liquid level gauge in sequence along the flow direction of the liquid in the liquid level detection pipeline, and the liquid level gauge is connected to the recovery pump; or, the supporting device also includes: a sewage pipeline and a third ball valve arranged on the sewage pipeline, and the sewage pipeline is connected to the interior of the clear liquid collection box.

[0014] In some embodiments, a pipeline on the hydrocyclone separator corresponding to the slag outlet is provided with a fourth ball valve and a timer electrically connected to the fourth ball valve.

[0015] Through the above-mentioned technical scheme, the residual liquid treatment system provided by the present application includes: a cyclone separator, a filtering device and a supporting device. The cyclone separator performs preliminary separation on the residual liquid to separate the clear liquid and the slag powder contaminated liquid with a larger weight, and then the filter paper of the filtering device can further filter the slag powder contaminated liquid with a larger weight to leave impurities such as iron filings on the filter paper, and then the iron filings and other impurities on the filter paper can be screened to extract the part that can be further used. In this way, waste can be reduced and the cost per vehicle can be reduced.

[0016] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings. 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, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of the residual liquid treatment system provided in an embodiment of the present application.

[0019] Description of reference numerals:

[0020] 1. Hydrocyclone separator; 11. Inlet; 12. Liquid outlet; 13. Slag outlet; 14. Fourth ball valve; 15. Timer; 2. Filter device; 21. Filter paper; 22. First winding member; 23. Second winding member; 231. Motor; 232. Annular chain; 24. Connecting bracket; 241. First plate; 242. Second plate; 25. Paper pressing structure; 251. Fixing member; 252. Shrapnel; 26. First roller; 27. Second roller; 28. Slag receiving vehicle; 3. Support device; 31. Support plate; 32. Clear liquid collecting box; 33. Liquid outlet pipeline; 331. Recovery pump; 332. One-way valve; 333. First ball valve; 34. Liquid level detection pipeline; 341. Second ball valve; 342. Liquid level meter; 35. Sewage pipeline; 351. Third ball valve; 36. Sewage pit. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation methods of the present application in conjunction with the accompanying drawings and examples. The detailed descriptions of the following examples and the accompanying drawings are used to exemplarily illustrate the principles of the present application, but cannot be used to limit the scope of the present application. The present application can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

[0022] The present application provides these embodiments to make the present application thorough and complete, and to fully express the scope of the present application to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0023] It should be noted that, in the description of this application, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing this 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 cannot be understood as a limitation on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0024] In addition, the words "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0025] It should also be noted that in the description of this application, 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; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0026] All terms used in this application have the same meaning as those understood by those of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0027] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0028] This application provides a residual liquid treatment system, see Figure 1 As shown, the residual liquid treatment system includes: a hydrocyclone 1, a filtering device 2 and a supporting device 3, the hydrocyclone 1 has an inlet 11, a liquid outlet 12 and a slag outlet 13; the filtering device 2 includes: a filter paper 21, at least a part of the filter paper 21 is opposite to the slag outlet 13; the supporting device 3 includes: a supporting plate 31, at least a part of the supporting plate 31 is attached to the surface of the filter paper 21 away from the slag outlet 13, so as to support the filter paper 21 corresponding to the slag outlet 13 into a plane, and the supporting plate 31 is provided with a guide portion to guide the liquid filtered by the filter paper 21 to a predetermined position.

[0029] Specifically, the hydrocyclone separator 1 described above relies on the centrifugal principle to separate slag powder pollutants of different weights. The hydrocyclone separator 1 has an inlet 11, a liquid outlet 12 and a slag outlet 13. When the residual liquid enters the hydrocyclone separator 1 from the inlet 11 in a tangential direction, it rotates to generate centrifugal force, and then the clear liquid containing fine iron powder flows out from the liquid outlet 12 through the bag filter, and the slag powder polluted liquid with a larger weight flows out from the slag outlet 13.

[0030] The filtering device 2 mentioned above includes: filter paper 21, at least part of the filter paper 21 is opposite to the slag outlet 13, so that the slag powder contaminated liquid with a larger weight flowing out from the slag outlet 13 flows to the filter paper 21 opposite to the slag outlet 13, and then the slag powder with a larger weight remains on the filter paper 21, and the clear liquid after filtration flows through the filter paper 21.

[0031] The support device 3 mentioned above includes: a support plate 31, at least part of the support plate 31 is attached to the surface of the filter paper 21 away from the slag outlet 13, so as to support the filter paper 21 corresponding to the slag outlet 13 into a plane, here, the surface of the support plate 31 supporting the filter paper 21 can be parallel to the slag outlet 13, or can be inclined relative to the slag outlet 13, but no matter it is parallel or inclined, the filter paper 21 is supported into a plane. The support plate 31 mentioned above can be made of stainless steel to prevent the support plate 31 from being decayed and rusted, so as to extend the service life of the support plate 31. The support plate 31 mentioned above is provided with a guide part to guide the clear liquid filtered by the filter paper 21 to a predetermined position, that is, the clear liquid filtered by the filter paper 21 reaches the support plate 31 and enters the guide part to flow to the predetermined position.

[0032] In some specific embodiments, see Figure 1 As shown, the residual liquid treatment system includes: a hydrocyclone 1, a filtering device 2 and a supporting device 3, the hydrocyclone 1 has an inlet 11, a liquid outlet 12 and a slag outlet 13, the inlet 11 is located on the left side of the hydrocyclone 1, the liquid outlet 12 is located above the hydrocyclone 1, and the slag outlet 13 is located below the hydrocyclone 1; the filtering device 2 includes: a filter paper 21, a part of the filter paper 21 is opposite to the slag outlet 13, so that the slag powder contaminated liquid with a larger weight flowing out of the slag outlet 13 flows to the filter paper 21 opposite to the slag outlet 13 under the action of gravity; the supporting device 3 includes: a supporting plate 31, the supporting plate 31 is arranged below the filter paper 21 and extends in a horizontal plane, and the upper surface of the supporting plate 31 is in contact with the filter paper 21 to support the filter paper 21 in a horizontal plane, and the supporting plate 31 is provided with a guide portion of a through-hole structure to guide the liquid filtered by the filter paper 21 to the clear liquid collection box 32 below. It should be noted that, for the convenience of description, the following description is made assuming that the inlet 11 is located on the left side of the hydrocyclone 1 , the liquid outlet 12 is located above the hydrocyclone 1 , and the slag outlet 13 is located below the hydrocyclone 1 .

[0033] In this embodiment, the residual liquid treatment system includes: a cyclone separator 1, a filter device 2 and a support device 3. The cyclone separator 1 performs preliminary separation on the residual liquid to separate the clear liquid and the slag powder contaminated liquid with a larger weight, and then the filter paper 21 of the filter device 2 can further filter the slag powder contaminated liquid with a larger weight to leave impurities such as iron filings on the filter paper 21, and then the iron filings and other impurities on the filter paper 21 can be screened to extract the part that can be further used. In this way, waste can be reduced and the cost per vehicle can be reduced.

[0034] In some embodiments, see Figure 1 As shown, the guide portion is a through hole formed on the support plate 31 , and an opening at one end of the through hole is opposite to the filter paper 21 on the support plate 31 ; or, the guide portion is a guide groove formed on the surface of the support plate 31 that is attached to the filter paper 21 .

[0035] Specifically, the guide portion mentioned above is a through hole provided on the support plate 31, and the opening at one end of the through hole is opposite to the filter paper 21. Here, the number of through holes can be one or more. When the number of through holes is more than one, the multiple through holes can be regularly arranged in multiple rows and columns, or can be irregularly arranged. For example, the support plate 31 is provided with multiple rows and columns of evenly arranged through holes, so that the support plate 31 is in a mesh shape. The size of the through hole mentioned above is based on the standard that the filter paper 21 will not collapse or be damaged, for example, the size of the through hole is 30 mm*30 mm.

[0036] The guide portion mentioned above is a guide groove formed on the surface of the support plate 31 that is attached to the filter paper 21. Here, the number of guide grooves can be one or more. When the number of guide grooves is one, the guide groove can extend along a straight line, along a curve, or in other ways. When the number of guide grooves is multiple, the multiple guide grooves can be arranged in parallel with each other, in a divergent shape, or in other forms. The guide groove mentioned above can be a straight-line shaped guide groove, an inverted T-shaped guide groove, or a guide groove of other shapes.

[0037] In this embodiment, the guide portion on the support plate 31 can be a through hole or a guide groove. During specific implementation, it can be set according to actual needs. For example, when a clear liquid collection box 32 described below is provided under the support plate 31, the guide portion can be a through hole so that the liquid flowing out of the slag outlet 13 can enter the clear liquid collection box 32 through the shortest path.

[0038] In some embodiments, see Figure 1 As shown, the filtering device 2 also includes: a first winding member 22 and a second winding member 23; the first winding member 22 is used to wind the filter paper 21; the second winding member 23 can rotate regularly under the action of the driving structure, and when the second winding member 23 rotates, the filter paper 21 on the first winding member 22 passes through the slag outlet 13 and is wound onto the second winding member 23.

[0039] Specifically, the first winding member 22 is used to wind the filter paper 21, that is, the filter paper 21 is connected to the first winding member 22 in a winding manner, for example, the filter paper 21 is attached to the first winding member 22 and wound on the first winding member 22, or for example, the filter paper 21 is in a winding shape and has a sleeve channel for sleeve the first winding member 22. The first winding member 22 can be a cylindrical structure, a hexagonal prism structure, or other long strip structures.

[0040] The second winding member 23 mentioned above can rotate regularly under the action of the driving structure, and when the second winding member 23 rotates, the filter paper 21 on the first winding member 22 passes through the slag outlet 13 and is wound onto the second winding member 23, that is, the outermost filter paper 21 on the first winding member 22 can be connected to the second winding member 23, and part of the filter paper 21 between the first winding member 22 and the second winding member 23 corresponds to the slag outlet 13, and when the second winding member 23 rotates regularly under the action of the driving structure, the filter paper 21 on the first winding member 22 gradually decreases and is gradually wound onto the second winding member 23. The second winding member 23 and the first winding member 22 mentioned above can correspond to the two sides of the slag outlet 13 respectively, or can correspond to one side of the slag outlet 13 at the same time. When the second winding member 23 and the first winding member 22 are simultaneously located on one side of the slag outlet 13, a rolling shaft can be set on the other side of the slag outlet 13, and the filter paper 21 between the first winding member 22 and the second winding member 23 bypasses the rolling shaft, so that there are two layers of filter paper 21 at the relative positions of the slag outlet 13; or, the first winding member 22 and the second winding member 23 can correspond to the two sides of the support plate 31 in the thickness direction, and the filter paper 21 bypasses the two sides of the support plate 31 in the thickness direction and is connected to the first winding member 22 and the second winding member 23 respectively.

[0041] The driving structure in the above-mentioned can be a motor 231, or a cylinder, or other structures, such as: Figure 1 As shown, a first gear is provided at one end of the second winding member 23, a second gear is connected to the rotating shaft of the motor 231, and both ends of the ring chain 232 are respectively mounted on the first gear and the second gear and meshed with the first gear and the second gear respectively. When the motor 231 is started at a fixed time to provide rotational force, the ring chain 232 rotates and rotates with the second winding member 23.

[0042] In a specific embodiment, the filter paper 21 is wound on the first winding member 22 , and when the second winding member 23 rotates, the first winding member 22 also rotates, so that the filter paper 21 on the first winding member 22 is gradually reduced and gradually wound on the second winding member 23 .

[0043] In another specific embodiment, a filter paper 21 in a rolled shape and having a sheathing channel is sleeved on the first winding member 22. When the second winding member 23 rotates, the filter paper 21 in a rolled shape on the first winding member 22 rotates relative to the first winding member 22, while the first winding member 22 remains stationary, so that the filter paper 21 on the first winding member 22 is gradually reduced and gradually wound on the second winding member 23.

[0044] In this embodiment, the filter device 2 also includes: a first winding member 22 and a second winding member 23, the first winding member 22 and the second winding member 23 support the filter paper 21, and when the second winding member 23 rotates regularly under the action of the driving structure, the filter paper 21 on the first winding member 22 passes through the slag outlet 13 and is wound onto the second winding member 23. In this way, the occurrence of low residual liquid filtration efficiency caused by a large number of impurities filtered on the filter paper 21 at the position corresponding to the slag outlet 13 is reduced, and since the replacement process of the filter paper 21 corresponding to the slag outlet 13 is completely automatic, the replacement speed of the filter paper 21 can be improved, and the labor cost generated by frequent manual replacement of the filter material can be reduced.

[0045] In some embodiments, see Figure 1 As shown, the filtering device 2 also includes: a connecting bracket 24 and a paper pressing structure 25; the connecting bracket 24 is connected to the support plate 31, and is at least partially located on a side of the support plate 31 corresponding to the hydrocyclone 1, and a avoidance space is provided at the position of the connecting bracket 24 corresponding to the hydrocyclone 1; the paper pressing structure 25 is connected to the connecting bracket 24, and applies pressure to the outer side of the paper outlet end of the filter paper 21 on the first winding member 22 connected to the connecting bracket 24.

[0046] Specifically, the connecting bracket 24 is connected to the support plate 31 and is at least partially located on the side of the support plate 31 corresponding to the hydrocyclone 1, and a clearance space is provided at the position of the connecting bracket 24 corresponding to the hydrocyclone 1, so that the liquid with impurities flowing out of the slag outlet 13 of the hydrocyclone 1 can flow through the clearance space to the filter paper 21 supported by the support plate 31. For example: Figure 1 As shown, the connecting bracket 24 includes: a first plate body 241 and a second plate body 242, the first plate body 241 is vertically connected to the support plate 31 and the second plate body 242 respectively, and the second plate body 242 is located above the support plate 31 and parallel to the support plate 31, and at the same time, the second plate body 242 is provided with a hole with openings at both ends corresponding to the position of the hydrocyclone separator 1, so that the liquid with impurities flowing out of the slag outlet 13 of the hydrocyclone separator 1 can flow through the holes on the second plate body 242 to the filter paper 21 supported by the support plate 31.

[0047] The paper pressing structure 25 mentioned above is connected to the connecting bracket 24, and applies pressure to the outer side of the paper outlet end of the filter paper 21 on the first winding member 22 connected to the connecting bracket 24. That is, the first winding member 22 is connected to the paper pressing structure 25, and the paper pressing structure 25 connected to the connecting bracket 24 can apply pressure to the outer side of the paper outlet end of the filter paper 21 on the first winding member 22, so that when the second winding member 23 rotates to provide a pulling force, the filter paper 21 on the first winding member 22 can be conveyed toward the second winding member 23. At the same time, the filter paper 21 between the first winding member 22 and the second winding member 23 is in a straightened state, so that the filter paper 21 on the first winding member 22 can be prevented from being in a loose state.

[0048] In this embodiment, the filter device 2 also includes: a connecting bracket 24 and a paper pressing structure 25. The connecting bracket 24 is connected to the support plate 31, and the first winding member 22 and the paper pressing structure 25 are connected to the connecting bracket 24. This can improve the integration of the residual liquid treatment system. The paper pressing structure 25 can apply pressure to the outer side of the paper outlet end of the filter paper 21 on the first winding member 22 to prevent the filter paper 21 from loosening.

[0049] In some embodiments, see Figure 1 As shown, the paper pressing structure 25 includes: a fixing member 251 and a spring sheet 252. The fixing member 251 is connected to the side of the connecting bracket 24 away from the supporting plate 31 and extends in the direction away from the connecting bracket 24. One end of the spring sheet 252 is connected to the fixing member 251, and the other end is opposite to the fixing member 251 close to one end of the connecting bracket 24; the first winding member 22 is arranged between the other end of the spring sheet 252 and the end of the fixing member 251 close to the connecting bracket 24.

[0050] Specifically, the fixing member 251 mentioned above is connected to the side of the connecting bracket 24 away from the support plate 31 and extends in the direction away from the connecting bracket 24. Here, the fixing member 251 can be rod-shaped, plate-shaped, or other structures, and the fixing member 251 can be vertically connected to the connecting bracket 24 or not vertically connected.

[0051] One end of the spring sheet 252 in the above-mentioned structure is connected to the fixing member 251, and the other end is opposite to the fixing member 251 near one end of the connecting bracket 24, that is, one end of the spring sheet 252 is connected to the fixing member 251, and the other end is opposite to the end of the fixing member 251 near the connecting bracket 24 and is in a free state. In this way, when the first winding member 22 is arranged between the other end of the spring sheet 252 and the end of the fixing member 251 near the connecting bracket 24, the spring sheet 252 provides an elastic force close to the fixing member 251 to the first winding member 22, so as to apply pressure to the outer side of the paper outlet end of the filter paper 21 on the first winding member 22.

[0052] In this embodiment, the paper pressing structure 25 includes: a fixing member 251 and a spring sheet 252, the fixing member 251 and the spring sheet 252 cooperate to form a setting space for the first winding member 22, and apply pressure to the filter paper 21 on the first winding member 22 through the spring sheet 252 to prevent the filter paper 21 on the first winding member 22 from being loose. Since the fixing member 251 and the spring sheet 252 have simple structures, the paper pressing structure 25 has a simple structure and is easy to manufacture.

[0053] In some embodiments, see Figure 1 As shown, the filter device 2 further includes: a plurality of first rollers 26, which are rotatably arranged on a side of the support plate 31 corresponding to the hydrocyclone 1, and the filter paper 21 is attached to the surface of the first roller 26 close to the support plate 31, and is transferred toward the direction of the second winding member 23 during the rotation of the first roller 26; wherein, the plurality of first rollers 26 press the filter paper 21 flat on the support plate 31. That is, the space between the first roller 26 and the support plate 31 accommodates the filter paper 21, so that the plurality of first rollers 26 press the filter paper 21 flat on the support plate 31, and the first roller 26 rotates to reduce the friction force when the filter paper 21 is transferred from the first winding member 22 to the second winding member 23.

[0054] In some embodiments, see Figure 1 As shown, the first winding member 22 and the second winding member 23 correspond to the two sides of the slag outlet 13 respectively; the filtering device 2 also includes: a second roller 27 and a slag receiving car 28; the second roller 27 is arranged on the side of the second winding member 23 away from the first winding member 22, and corresponds to between the second winding member 23 and the hydrocyclone 1, the filter paper 21 adheres to a part of the surface of the second roller 27 and is transmitted toward the direction of the second winding member 23 during the rotation of the second roller 27; the slag receiving car 28 is arranged on the side of the second winding member 23 away from the first winding member 22, and the opening of the slag receiving car 28 is opposite to the side of the second roller 27 away from the first winding member 22.

[0055] Specifically, the second roller 27 is arranged on the side of the second winding member 23 away from the first winding member 22, and corresponds to between the second winding member 23 and the hydrocyclone 1, that is, in the horizontal dimension, the second winding member 23 is located between the first winding member 22 and the second roller 27, and in the vertical dimension, the second roller 27 is located between the first winding member 22 and the second winding member 23. The filter paper 21 is attached to a part of the surface of the second roller 27 and is transferred toward the direction of the second winding member 23 during the rotation of the second roller 27, that is, the second roller 27 has a guiding effect on the filter paper 21, so as to guide the filter paper 21 to the second winding member 23.

[0056] The slag receiving car 28 is arranged on the side of the second winding member 23 away from the first winding member 22, and the opening of the slag receiving car 28 is opposite to the side of the second roller 27 away from the first winding member 22, so that after the filter paper 21 is guided by the second roller 27 to make the filter paper 21 turn at the second roller 27, the impurities on the filter paper 21 can directly fall into the slag receiving car 28. The bottom of the slag receiving car 28 is provided with rollers, and when the slag receiving car 28 is full of impurities, the slag receiving car 28 can be easily pushed to transfer the impurities.

[0057] In this embodiment, the second roller 27 and the slag receiving vehicle 28 cooperate to realize automatic slag unloading, which can improve the processing efficiency and reduce the labor cost.

[0058] In some embodiments, see Figure 1 As shown, the support device 3 also includes: a clear liquid collection box 32, a liquid outlet pipeline 33, and a liquid level detection pipeline 34; the clear liquid collection box 32 is a box structure formed by a plurality of plates including a support plate 31, and the guide portion is a plurality of through holes opened on the support plate 31, and the opening at one end of the through hole is opposite to the filter paper 21 on the support plate 31; the liquid outlet pipeline 33 is connected to the interior of the clear liquid collection box 32; the liquid level detection pipeline 34 is connected to the interior of the clear liquid collection box 32.

[0059] Specifically, the clear liquid collection box 32 is a box structure formed by a plurality of plates including a support plate 31, and the guide portion is a plurality of through holes provided on the support plate 31, and the opening at one end of the through hole is opposite to the filter paper 21 on the support plate 31, so that the clear liquid filtered by the filter paper 21 enters the clear liquid collection box 32 through the through hole on the support plate 31, so that the filtered clear liquid can be conveniently collected. The clear liquid collection box 32 can also be used for chemical reactions. For example, when there are chemicals in the liquid after the filter paper 21, a reactant can be added to the clear liquid collection box 32 to react the chemicals, so as to reduce the probability of polluting the environment after discharge. The clear liquid collection box 32 can be made of stainless steel to prevent corrosion and rust.

[0060] The above-mentioned liquid outlet pipeline 33 is connected to the inside of the clear liquid collection box 32, so that the clear liquid in the clear liquid collection box 32 can be discharged to other locations through the liquid outlet pipeline 33. The above-mentioned liquid level detection pipeline 34 is connected to the inside of the clear liquid collection box 32, so that the clear liquid can be selectively discharged through the liquid outlet pipeline 33 according to the liquid level height detected by the liquid level detection pipeline 34. For example, when the liquid level detection pipeline 34 detects that the liquid level height in the clear liquid collection box 32 reaches 2 / 3 of the height of the clear liquid collection box 32, the liquid outlet pipeline 33 is opened to allow the clear liquid in the clear liquid collection box 32 to flow out through the liquid outlet pipeline 33.

[0061] In some embodiments, see Figure 1 As shown, the liquid outlet pipeline 33 is provided with a recovery pump 331, a one-way valve 332 and a first ball valve 333 in sequence along the flow direction of the liquid in the liquid outlet pipeline 33; the liquid level detection pipeline 34 is provided with a second ball valve 341 and a liquid level meter 342 in sequence along the flow direction of the liquid in the liquid level detection pipeline 34, and the liquid level meter 342 is connected to the recovery pump 331; or, the supporting device 3 also includes: a sewage pipeline 35 and a third ball valve 351 arranged on the sewage pipeline 35, and the sewage pipeline 35 is connected to the interior of the clear liquid collection box 32.

[0062] Specifically, the recovery pump 331 mentioned above can drive the clear liquid in the clear liquid collection box 32 to flow to the liquid outlet pipeline 33, the setting of the one-way valve 332 can prevent backflow when the liquid level in the clear liquid collection box 32 is low, and the first ball valve 333 can control whether the liquid in the liquid outlet pipeline 33 flows.

[0063] The second ball valve 341 mentioned above can control whether the liquid in the liquid level detection pipeline 34 flows, and the liquid level gauge 342 can detect the height of the liquid in the clear liquid collection box 32. Since the liquid level gauge 342 is connected to the recovery pump 331, when the liquid level obtained by the liquid level gauge 342 reaches the critical liquid level, it is fed back to the recovery pump 331 to open the recovery pump 331, thereby realizing the discharge of the clear liquid collection box 32 through the liquid outlet pipeline 33. In this form, the first ball valve 333 and the second ball valve 341 are in an open state. The opening of the first ball valve 333 can prevent the liquid from not being able to flow through the first ball valve 333 after the recovery pump 331 is turned on at the critical liquid level. The opening of the second ball valve 341 enables the liquid level gauge 342 to detect the liquid level in the clear liquid collection box 32 at all times. The liquid level gauge 342 mentioned above can be a static pressure level gauge or a level gauge of other structures.

[0064] The supporting device 3 mentioned above also includes: a sewage discharge pipeline 35 and a third ball valve 351 arranged on the sewage discharge pipeline 35. The sewage discharge pipeline 35 is connected to the interior of the clear liquid collection box 32. In this way, the sewage discharge pipeline 35 can be opened to discharge sewage after the clear liquid in the clear liquid collection box 32 flows out through the liquid outlet pipeline 33, there is clear liquid remaining in the clear liquid collection box 32, or the clear liquid collection box 32 is cleaned. The third ball valve 351 mentioned above can reduce the leakage of the sewage discharge pipeline 35. The outlet of the sewage discharge pipeline 35 mentioned above can correspond to the opening of the sewage pit 36, so that the workload and increased cost caused by re-handling can be reduced.

[0065] In some embodiments, see Figure 1 As shown, the pipeline corresponding to the slag outlet 13 of the hydrocyclone separator 1 is provided with a fourth ball valve 14 and a timer 15 electrically connected to the fourth ball valve 14. In this way, the fourth ball valve 14 can be opened by the timer 15 for a certain time, so that the slag outlet 13 can flow out the liquid with impurities to the filter paper 21 at a fixed time.

[0066] In some specific embodiments, during the production of automobiles, after the body in white undergoes processes such as stamping, welding, and grinding, it often carries some drawing oil, welding slag, welding balls, and grinding iron filings to the painting workshop. The pre-treatment process in the painting workshop will degrease and clean the body in white to wash away the oil stains, iron filings, iron powder and other pollutants carried by the body in white. The residual liquid treatment system is used in the painting workshop to treat the pollutants washed off. Figure 1 As shown, the residual liquid treatment system includes:

[0067] The hydrocyclone separator 1 has an inlet 11, a liquid outlet 12 and a slag outlet 13, wherein the inlet 11 is located on the left side of the hydrocyclone separator 1, the liquid outlet 12 is located above the hydrocyclone separator 1, and the slag outlet 13 is located below the hydrocyclone separator 1. A fourth ball valve 14 and a timer 15 electrically connected to the fourth ball valve 14 are provided on the pipeline corresponding to the slag outlet 13 of the hydrocyclone separator 1.

[0068] The filter device 2 includes: filter paper 21, a first winding member 22, a second winding member 23, a connecting bracket 24, a paper pressing structure 25, two first rollers 26, a second roller 27 and a slag receiving vehicle 28. The first winding member 22 and the second winding member 23 correspond to the two sides of the slag outlet 13 respectively. The first winding member 22 is used to wind the filter paper 21. The second winding member 23 can rotate regularly under the action of the motor 231. When the second winding member 23 rotates, the filter paper 21 on the first winding member 22 passes through the slag outlet 13 and is wound onto the second winding member 23. The connecting bracket 24 is located below the hydrocyclone 1, and a clearance space is provided at the position of the connecting bracket 24 corresponding to the hydrocyclone 1. The paper pressing structure 25 includes: a fixing member 251 and a spring 252. The fixing member 251 is connected to the top of the connecting bracket 24 and extends upward. One end of the spring 252 is connected to the fixing member 251, and the other end is opposite to the fixing member 251 near one end of the connecting bracket 24. The first winding member 22 is arranged between the other end of the spring 252 and the end of the fixing member 251 near the connecting bracket 24. Two first rollers 26 are spaced apart and both are rotatably arranged on one side of the supporting plate 31 located below the connecting bracket 24 corresponding to the hydrocyclone 1. The filter paper 21 adheres to the surface of the first roller 26 near the supporting plate 31 and is transmitted toward the direction of the second winding member 23 during the rotation of the first roller 26. The two first rollers 26 flatten the filter paper 21 on the supporting plate 31. The second roller 27 is arranged on the side of the second winding member 23 away from the first winding member 22, and corresponds to between the second winding member 23 and the hydrocyclone separator 1. The filter paper 21 adheres to a portion of the surface of the second roller 27 and is transmitted toward the second winding member 23 during the rotation of the second roller 27. The slag receiving car 28 is arranged on the side of the second winding member 23 away from the first winding member 22, and the opening of the slag receiving car 28 is opposite to the side of the second roller 27 away from the first winding member 22.

[0069] The support device 3 includes: a support plate 31, a clear liquid collection box 32, a liquid outlet pipeline 33, a liquid level detection pipeline 34, a sewage pipeline 35 and a sewage pit 36. The support plate 31 is arranged below the connecting bracket 24 and connected to the connecting bracket 24. The surface of the support plate 31 close to the hydrocyclone 1 is attached to the surface of the filter paper 21 away from the slag outlet 13, so as to support the filter paper 21 corresponding to the slag outlet 13 into a plane, and the support plate 31 is provided with a plurality of through holes to form a mesh, and the opening at one end of the through hole is opposite to the filter paper 21 on the support plate 31. The clear liquid collection box 32 is a box structure formed by a plurality of plate bodies including the support plate 31. The liquid outlet pipeline 33 is connected to the inside of the clear liquid collection box 32, and the liquid outlet pipeline 33 is provided with a recovery pump 331, a one-way valve 332 and a first ball valve 333 in sequence along the flow direction of the liquid in the liquid outlet pipeline 33. The liquid level detection pipeline 34 is connected to the interior of the clear liquid collection box 32. The liquid level detection pipeline 34 is provided with a second ball valve 341 and a liquid level gauge 342 in sequence along the flow direction of the liquid in the liquid level detection pipeline 34. The liquid level gauge 342 is connected to the recovery pump 331. The sewage discharge pipeline 35 is connected to the interior of the clear liquid collection box 32. The sewage discharge pipeline 35 is provided with a third ball valve 351, and the outlet of the sewage discharge pipeline 35 is opposite to the opening of the sewage pit 36.

[0070] So far, various embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed herein.

[0071] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. A residual liquid treatment system, characterized in that: include: A hydrocyclone separator (1) having an inlet (11), a liquid outlet (12) and a slag outlet (13); The filtering device (2) comprises: filter paper (21), at least a portion of the filter paper (21) is opposite to the slag outlet (13); The support device (3) comprises: a support plate (31), at least a portion of the support plate (31) being in contact with a surface of the filter paper (21) facing away from the slag outlet (13) so as to support the filter paper (21) corresponding to the slag outlet (13) into a plane shape, and the support plate (31) is provided with a guide portion so as to guide the liquid filtered by the filter paper (21) to a predetermined position.

2. The residual liquid treatment system according to claim 1, characterized in that: The guide portion is a through hole formed on the support plate (31), and an opening at one end of the through hole is opposite to the filter paper (21) on the support plate (31); or, The guide portion is a guide groove formed on the surface of the support plate (31) that is in contact with the filter paper (21).

3. The residual liquid treatment system according to claim 1, characterized in that: The filtering device (2) further comprises: a first winding member (22) and a second winding member (23); The first winding member (22) is used for winding the filter paper (21); The second winding member (23) can rotate regularly under the action of the driving structure, and when the second winding member (23) rotates, the filter paper (21) on the first winding member (22) passes through the slag outlet (13) and is wound onto the second winding member (23).

4. The residual liquid treatment system according to claim 3, characterized in that: The filtering device (2) further comprises: a connecting bracket (24) and a paper pressing structure (25); The connecting bracket (24) is connected to the supporting plate (31) and is at least partially located on a side of the supporting plate (31) corresponding to the hydrocyclone (1), and a relief space is provided at a position of the connecting bracket (24) corresponding to the hydrocyclone (1); The paper pressing structure (25) is connected to the connecting bracket (24) and applies pressure to the outer side of the paper outlet end of the filter paper (21) on the first winding member (22) connected to the connecting bracket (24).

5. The residual liquid treatment system according to claim 4, characterized in that: The paper pressing structure (25) comprises: a fixing member (251) and a spring sheet (252); the fixing member (251) is connected to a side of the connecting bracket (24) away from the supporting plate (31) and extends in a direction away from the connecting bracket (24); one end of the spring sheet (252) is connected to the fixing member (251), and the other end is opposite to the fixing member (251) close to one end of the connecting bracket (24); The first winding member (22) is arranged between the other end of the elastic sheet (252) and one end of the fixing member (251) close to the connecting bracket (24).

6. The residual liquid treatment system according to claim 3, characterized in that: The filtering device (2) further comprises: a plurality of first rollers (26), wherein the first rollers (26) are rotatably arranged on a side of the support plate (31) corresponding to the hydrocyclone (1), and the filter paper (21) is attached to a surface of the first roller (26) close to the support plate (31) and is transported toward the second winding member (23) during the rotation of the first roller (26); The plurality of first rollers (26) press the filter paper (21) flat on the support plate (31).

7. The residual liquid treatment system according to claim 3, characterized in that: The first winding member (22) and the second winding member (23) are respectively located on two sides of the slag outlet (13); The filtering device (2) further comprises: a second roller (27) and a slag receiving vehicle (28); The second roller (27) is arranged on a side of the second winding member (23) away from the first winding member (22) and corresponds to between the second winding member (23) and the hydrocyclone (1); the filter paper (21) is attached to a part of the surface of the second roller (27) and is transported toward the second winding member (23) during the rotation of the second roller (27); The slag receiving vehicle (28) is arranged on a side of the second winding member (23) away from the first winding member (22), and an opening of the slag receiving vehicle (28) is opposite to a side of the second roller (27) away from the first winding member (22).

8. The residual liquid treatment system according to claim 1, characterized in that: The supporting device (3) further comprises: a clear liquid collection box (32), a liquid outlet pipeline (33) and a liquid level detection pipeline (34); The clear liquid collection box (32) is a box structure formed by enclosing a plurality of plates including the support plate (31); the guide portion is a plurality of through holes provided on the support plate (31); an opening at one end of the through hole is opposite to the filter paper (21) on the support plate (31); The liquid outlet pipeline (33) is in communication with the interior of the clear liquid collection box (32); The liquid level detection pipeline (34) is in communication with the interior of the clear liquid collection box (32).

9. The residual liquid treatment system according to claim 8, characterized in that: The liquid outlet pipeline (33) is provided with a recovery pump (331), a one-way valve (332) and a first ball valve (333) in sequence along the flow direction of the liquid in the liquid outlet pipeline (33); the liquid level detection pipeline (34) is provided with a second ball valve (341) and a liquid level meter (342) in sequence along the flow direction of the liquid in the liquid level detection pipeline (34), and the liquid level meter (342) is connected to the recovery pump (331); or, The supporting device (3) further comprises: a sewage discharge pipeline (35) and a third ball valve (351) arranged on the sewage discharge pipeline (35); the sewage discharge pipeline (35) is connected to the interior of the clear liquid collection box (32).

10. The residual liquid treatment system according to claim 1, characterized in that: The pipeline on the hydrocyclone separator (1) corresponding to the slag outlet (13) is provided with a fourth ball valve (14) and a timer (15) electrically connected to the fourth ball valve (14).

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