A multi-layer filtering device for treating chemical production wastewater and a treatment process thereof

Abstract

The application discloses a kind of wastewater multilayer filtering treatment device for chemical production and processing technology thereof, and relates to wastewater treatment technical field, and its technical scheme main point is: including processing pipe group, this processing pipe group includes flow pipeline and filter pipeline fixedly installed on the one end of flow pipeline, the filter pipeline is vertically arranged with the flow pipeline;Cylindrical filter screen, the cylindrical filter screen is rotatably installed in the inside of filter pipeline, there is impurity cavity between the outer surface of the cylindrical filter screen and the inner surface of filter pipeline, and the circumferential direction of the cylindrical filter screen is fixedly installed with baffle at equal intervals;Control panel group, control panel group is rotatably installed on the inner surface of filter pipeline, and elastic member is arranged between the control panel group and the filter pipeline;Impurity discharge pipe is fixedly installed on the outer surface of filter pipeline and is located at the impurity discharge port of filter pipeline, and the effect is that filtering can be continuously carried out, with stable filtering speed, simple and convenient to use.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and more specifically, to a multi-layer filtration treatment device and its treatment process for wastewater used in chemical production. Background Technology

[0002] With the development of society and the economy, people's living standards have gradually improved, and their environmental awareness has also been strengthened. In recent years, my country has attached great importance to environmental protection issues and intensified its efforts to address the environmental problems brought about by economic development, especially water resource management. Water is fundamental to human survival, and wastewater discharge is a major challenge affecting water resources. Pure water undergoes changes in its original physical or chemical properties after use, becoming wastewater containing various impurities. Chemical wastewater refers to process wastewater, cooling water, exhaust gas scrubbing water, and equipment and site washing water discharged during chemical production. If this wastewater is discharged without treatment, it will cause varying degrees and properties of pollution to water bodies, thereby endangering human health and affecting industrial and agricultural production.

[0003] In the treatment of chemical wastewater, the first step is to filter the wastewater. Chemical wastewater often contains various solid particles, emulsions, and suspensions of different sizes, requiring multi-layer filtration to separate the various impurities. With traditional filtration methods, impurities blocked by the filter plates gradually cover the filter pores, affecting the processing speed of the entire treatment equipment. This necessitates regular cleaning of the filter plates by staff, as continuous filtration of chemical wastewater is not feasible, resulting in low filtration efficiency and increased workload for staff. Therefore, to solve the above technical problems, this application proposes a multi-layer filtration treatment device and its treatment process for chemical production wastewater. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a multi-layer filtration treatment device for wastewater in chemical production and its treatment process.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-layer filtration treatment device for wastewater in chemical production, comprising:

[0006] A processing pipe assembly, which includes a flow pipe and a filter pipe fixedly installed at one end of the flow pipe, wherein the filter pipe is arranged perpendicular to the flow pipe.

[0007] A cylindrical filter screen is rotatably installed inside a filter pipe and is located at the water inlet end of the filter pipe. There is an impurity cavity between the outer surface of the cylindrical filter screen and the inner surface of the filter pipe. Baffle plates are fixedly installed at equal intervals along the circumference of the cylindrical filter screen, and one end of the baffle plate can be tightly attached to the inner surface of the filter pipe.

[0008] A control panel assembly is rotatably mounted on the inner surface of the filter pipe. An elastic element is provided between the control panel assembly and the filter pipe. A first receiving groove for accommodating the control panel assembly is provided on the filter pipe.

[0009] A discharge pipe is fixedly installed on the outer surface of the filter pipe and located at the discharge port of the filter pipe. A sealing plate is slidably installed on the discharge pipe. A closing component is provided between the sealing plate and the filter pipe. The closing component is configured such that when one of the baffle plates is tightly attached to one end of the closing component, the sealing plate closes the internal channel of the discharge pipe. An opening component is provided between the closing component and the discharge pipe. The opening component is configured such that when the baffle plate is separated from one end of the closing component, the sealing plate opens the internal channel of the discharge pipe.

[0010] Preferably, multiple filter pipes and multiple flow pipes are provided. The inlet end of the filter pipe is fixedly connected to the outlet end of one flow pipe, and the outlet end of the filter pipe is fixedly connected to the inlet end of another flow pipe, so that the treatment pipe assembly is in an "S" shape.

[0011] Preferably, the treatment pipe assembly further includes a central pipe, with a pair of flow pipes fixedly connected to each end of the central pipe along its length. The two flow pipes at one end of the central pipe are fixedly connected to the inlet ends of two filter pipes, and the two flow pipes at the other end of the central pipe are fixedly connected to the outlet ends of two other filter pipes.

[0012] Preferably, the control panel assembly includes a movable sleeve plate, a movable inner plate, and a spring;

[0013] The movable sleeve plate is rotatably mounted on the inner surface of the filter pipe. The movable sleeve plate has a sliding cavity inside, and the movable inner plate is slidably disposed in the sliding cavity. The spring is fixedly installed between the inner surface of the movable sleeve plate and the movable inner plate.

[0014] Preferably, the closing assembly includes a drive rod, a push plate, a first driven bevel gear, a first driving bevel gear, a first gear, a first connecting rod, and a first slide rod;

[0015] The push plate is disposed inside the impurity chamber and is fixedly mounted on the bottom end of the drive rod. The drive rod has a sliding part and a toothed part. The sliding part is slidably connected to the filter pipe. The first gear is rotatably mounted on the outer surface of the impurity discharge pipe and is meshed with the toothed part. The first driving bevel gear is fixedly connected to the first gear. The first driven bevel gear is rotatably mounted on the impurity discharge pipe and is meshed with the first driving bevel gear. One end of the first connecting rod is fixedly mounted on the shaft of the first driven bevel gear. The first slide rod is fixedly mounted on the first connecting rod. A slide rail is fixedly connected to the sealing plate, and the first slide rod is slidably engaged with the slide rail.

[0016] Preferably, when a pair of sealing plates are provided, the drive rod is fixedly connected to a toothed pressure plate via a connecting rod, a second gear is rotatably mounted on the outer surface of the waste discharge pipe, a second driving bevel gear is fixedly connected to the second gear, a second driven bevel gear is also rotatably mounted on the waste discharge pipe, the second driven bevel gear and the second driving bevel gear are in a meshing state, a second connecting rod is fixedly mounted on the shaft of the second driven bevel gear, a second sliding rod is fixedly connected to the second connecting rod, and the second sliding rod is in sliding engagement with the slide rail.

[0017] Preferably, the flow pipe is inclined, and the outlet end of the flow pipe faces the rotation direction of the filter screen.

[0018] Preferably, inclined portions are provided on both sides of the baffle plate.

[0019] Preferably, a slowing plate is fixedly installed on the inner surface of the discharge pipe and at the discharge pipe inlet, and the slowing plate has a plurality of holes for impurities to pass through.

[0020] A multi-layer filtration treatment process for wastewater from chemical production, comprising the aforementioned multi-layer filtration treatment device for wastewater from chemical production, including:

[0021] S1: Connect the treatment pipe assembly to the chemical wastewater to be treated, so that the chemical wastewater enters the interior of the filter pipe through the flow pipe;

[0022] S2: The chemical wastewater entering the filtration pipe first comes into contact with the column filter screen. The column filter screen blocks and filters out some larger impurities in the chemical wastewater. The chemical wastewater passing through the column filter screen enters another flow pipe through the outlet of the filtration pipe, and then enters the next filtration pipe through this flow pipe.

[0023] S3: As the chemical wastewater passes through the cylindrical filter screen in the flow pipe, impurities gradually accumulate. These impurities reduce the filtration speed of the cylindrical filter screen, and the water pressure on the cylindrical filter screen gradually increases. When the water pressure on the cylindrical filter screen exceeds the elastic force of the elastic element, the control plate group rotates to allow a baffle plate to pass through. The rotation of the cylindrical filter screen causes the part covered with impurities to move away from directly above the outlet of the flow pipe, allowing the new part on the cylindrical filter screen to enter directly above the flow pipe.

[0024] S4: After the baffle plate separates from the push plate, the opening component causes the sealing plate to open the internal channel of the discharge pipe. The chemical wastewater inside the filter pipe will push the impurities in the impurity chamber into the discharge pipe and discharge them through the discharge pipe. When a baffle plate contacts the push plate, the closing component causes the sealing plate to close the internal channel of the discharge pipe. At this time, the control plate group contacts a baffle plate to prevent the column filter screen from continuing to rotate.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] By setting up mutually perpendicular filter pipes and flow pipes, a cylindrical filter screen is rotatably installed in the filter pipes, with the filter screen positioned at the water inlet end of the filter pipes. An impurity cavity is formed between the outer surface of the cylindrical filter screen and the inner surface of the filter pipe. Baffle plates are installed at equal intervals along the circumference of the cylindrical filter screen. A control plate assembly is rotatably installed on the inner surface of the filter pipe, with an elastic element between the control plate assembly and the filter pipe. Chemical wastewater passes through the fixed area of ​​the cylindrical filter screen, which blocks some impurities, concentrating them within this fixed area. Chemical wastewater continuously flows into the filter pipe from the flow pipe, causing the amount of impurities on the cylindrical filter screen to continuously increase. Due to the obstruction of impurities, the water pressure on the cylindrical filter screen continuously increases. When the water pressure on the cylindrical filter screen exceeds the elastic force of the elastic element, the baffle plates can pass over the control plate assembly, clearing the impurity-free area on the cylindrical filter screen. Moved to the position directly above the flow pipe, the cylindrical filter screen regains a high filtration speed, allowing for continuous and stable filtration of chemical wastewater. The filtration speed is automatically controlled, making it simple and convenient to use. Furthermore, a discharge pipe is fixedly installed at the outlet of the filter pipe. The chemical wastewater pushes impurities from the impurity chamber into the discharge pipe's internal channel and discharges them. During this process, the chemical wastewater passing through the cylindrical filter screen again pushes impurities into the discharge pipe. Some impurities accumulated on the cylindrical filter screen become stuck in the filter holes, causing blockage. The chemical wastewater dislodging these impurities from the filter holes prevents blockage and ensures the filter holes on the cylindrical filter screen remain unobstructed. This results in an extremely long service life for the cylindrical filter screen even without manual intervention.

[0027] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it according to the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Specific embodiments of the present invention are given in detail below with reference to the accompanying drawings. Attached Figure Description

[0028] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0029] Figure 1 This is a schematic diagram of the structure of Embodiment 3 of the present invention;

[0030] Figure 2 This is a schematic cross-sectional view of the filter pipe, flow pipe, and cylindrical filter screen in this invention.

[0031] Figure 3 This is a schematic cross-sectional view of the filter pipe in this invention;

[0032] Figure 4 This is a schematic diagram of the cylindrical filter screen in this invention;

[0033] Figure 5 This is a schematic diagram of the disassembled structure of the movable sleeve plate and the movable inner plate in this invention;

[0034] Figure 6 This is a schematic diagram of the elastic telescopic rod and the closing assembly in this invention;

[0035] Figure 7 This is a schematic diagram showing the disassembled structure of the waste discharge pipe and the sealing plate in this invention;

[0036] Figure 8 This is a schematic diagram of the structure of Embodiment 4 of the present invention.

[0037] 11. Filter pipe; 111. First receiving tank; 112. Second receiving tank; 12. Flow pipe; 13. Centralized pipe;

[0038] 21. Columnar filter screen; 211. Impurity chamber; 212. Fixing ring; 22. Baffle plate; 221. Inclined part;

[0039] 31. Movable sleeve plate; 32. Movable inner plate; 33. Spring; 34. Torsion spring;

[0040] 41. Drive rod; 411. Sliding part; 412. Toothed part; 42. Push plate; 43. First driven bevel gear; 44. First driving bevel gear; 45. First gear; 46. First connecting rod; 47. First slide rod; 48. Connecting rod; 49. Elastic telescopic rod;

[0041] 51. Tooth pressure plate; 52. Second gear; 53. Second driven bevel gear; 54. Second driving bevel gear; 55. Second connecting rod; 56. Second sliding rod;

[0042] 61. Waste discharge pipe; 611. Sliding end; 62. Waste outlet pipe; 63. Sealing plate; 631. Slide rail; 64. Slowing plate. Detailed Implementation

[0043] The following is in conjunction with the appendix Figure 1-8 The principles and features of the present invention are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of the invention. The invention is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the invention will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.

[0044] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0046] Example 1:

[0047] Please combine Figures 1 to 8 As shown, a multi-layer filtration treatment device for wastewater from chemical production is disclosed. The device includes:

[0048] The treatment pipe assembly is connected to the chemical wastewater pipeline to be treated. The treatment pipe assembly includes a flow pipe 12 and a filter pipe 11 fixedly installed at one end of the flow pipe 12. The filter pipe 11 is arranged perpendicular to the flow pipe 12.

[0049] A cylindrical filter screen 21 has a fixing ring 212 fixedly installed at one end. The cylindrical filter screen 21 is rotatably connected to the inner surface of the filter pipe 11 through the fixing ring 212. The cylindrical filter screen 21 is located at the water inlet end of the filter pipe 11. The chemical wastewater discharged from the water outlet end of the flow pipe 12 will first come into contact with part of the cylindrical filter screen 21. The cylindrical filter screen 21 can filter and block some impurities in the chemical wastewater, causing the impurities to adhere to the outer surface of the cylindrical filter screen 21. There is an impurity cavity 211 between the surface of the filter and the inner surface of the filter pipe 11. Baffle plates 22 are fixedly installed at equal intervals in the circumferential direction of the column filter screen 21. One end of the baffle plate 22 can be tightly attached to the inner surface of the filter pipe 11. Under the blocking effect of the baffle plate 22, the wastewater discharged from the flow pipe 12 cannot enter the impurity cavity 211. As a result, the impurities in the chemical wastewater can only pass through the fixed area of ​​the column filter screen 21. Therefore, the blocked impurities are also concentrated in the fixed area of ​​the column filter screen 21.

[0050] A control panel assembly is rotatably mounted on the inner surface of the filter pipe 11. An elastic element is installed between the control panel assembly and the filter pipe 11. The control panel assembly contacts one of the baffle plates 22, thus blocking the rotation of the cylindrical filter screen 21. After the cylindrical filter screen 21 has been treating chemical wastewater for a period of time, a large amount of impurities will gradually accumulate on it. These impurities will gradually slow down the filtration speed of the cylindrical filter screen 21. Meanwhile, chemical wastewater from the flow pipe 12 will continuously flow into the filter pipe 11, and the amount of impurities on the cylindrical filter screen 21 will continuously increase. Consequently, the water pressure on the cylindrical filter screen 21 will continuously increase. When the water pressure on the cylindrical filter screen 21 exceeds the elastic element's elasticity... When the force is applied, the baffle plate 22 can push the control plate assembly to rotate, and the baffle plate 22 can pass over the control plate assembly. The area of ​​the cylindrical filter screen 21 covered with impurities enters the impurity chamber 211, and the area of ​​the cylindrical filter screen 21 without impurities moves to the position directly above the flow pipe 12, so that the cylindrical filter screen 21 can resume a high filtration speed. In this way, the filtration of chemical wastewater can be carried out continuously, and the filtration speed of chemical wastewater can be kept in a stable state. The filtration speed of chemical wastewater can be controlled automatically. It is simple and convenient to use. The filter pipe 11 is provided with a first receiving groove 111 for accommodating the control plate assembly, so that the baffle plate 22 can pass over the control plate assembly smoothly.

[0051] A discharge pipe 61 is fixedly installed on the outer surface of the filter pipe 11 and located at the discharge port of the filter pipe 11. A discharge pipe 62 is fixedly installed on one end of the discharge pipe 61. A sliding port 611 is provided on the discharge pipe 61, and a sealing plate 63 is slidably disposed on the sliding port 611. A closing component is provided between the sealing plate 63 and the filter pipe 11. The closing component is configured such that when one of the baffle plates 22 is tightly fitted with one end of the closing component, the sealing plate 63 closes the internal passage of the discharge pipe 61. An opening component is provided between the closing component and the discharge pipe 61. The opening component is configured such that when the baffle plate 22 is separated from one end of the closing component, the sealing plate 63 opens the discharge pipe. The internal channel of the impurity discharge pipe 61 is opened. Regarding the above structure, when the water pressure on the cylindrical filter screen 21 exceeds the elastic force of the elastic element and causes it to rotate, impurities adhering to the outer surface of the cylindrical filter screen 21 will rotate along with the cylindrical filter screen 21 into the impurity chamber 211. A baffle plate 22 rotating with the cylindrical filter screen 21 will separate from one end of the closing assembly. At this time, the sealing plate 63 opens the internal channel of the impurity discharge pipe 61, allowing the chemical wastewater passing through the cylindrical filter screen 21 to still enter the impurity chamber 211, thereby pushing the impurities in the impurity chamber 211 into the internal channel of the impurity discharge pipe 61 until they are discharged through the impurity outlet pipe 62, thus removing the impurities. During the wastewater discharge process, the chemical wastewater that has passed through the cylindrical filter screen 21 passes through the filter screen 21 again, pushing impurities into the discharge pipe 61. Some impurities accumulated on the cylindrical filter screen 21 will get stuck in the filter holes and clog them. However, as the chemical wastewater pushes the impurities into the discharge pipe 61, these impurities can be removed from the filter holes, preventing the impurities from clogging the filter. This ensures that the filter holes on the cylindrical filter screen 21 remain unobstructed. The cylindrical filter screen 21 also has a very long service life without human intervention. This treatment device is not only simple in structure, but also capable of continuously filtering chemical wastewater. The system processes wastewater effectively and maintains a stable filtration rate. When a baffle plate 22 contacts the control plate assembly, a new area on the cylindrical filter screen 21 switches to directly above the flow pipe 12. The water pressure on the cylindrical filter screen 21 is reduced. When the control plate assembly contacts the baffle plate 22, it can prevent the cylindrical filter screen 21 from continuing to rotate. Before the baffle plate 22 contacts the control plate assembly, it will contact one end of the closing component. The closing component causes the sealing plate 63 to close the internal channel of the discharge pipe 61, preventing the chemical wastewater from continuing to be discharged. Therefore, each time the impurities are discharged, they contain only a small amount of chemical wastewater. Thus, the treatment device treats chemical wastewater more thoroughly.

[0052] Based on Embodiment 1, the solution in Embodiment 1 will be further described in detail below, with specific working methods as follows.

[0053] Example 2:

[0054] For the control panel assembly, the control panel assembly includes a movable sleeve plate 31, a movable inner plate 32, and a spring 33; the movable sleeve plate 31 is rotatably mounted on the inner surface of the filter pipe 11, and the movable sleeve plate 31 has a sliding cavity inside, in which the movable inner plate 32 is slidably disposed; the spring 33 is fixedly mounted between the inner surface of the movable sleeve plate 31 and the movable inner plate 32; as the blocking plate 22 passes over the control panel assembly, the end of the movable inner plate 32 can fit against the surface of the cylindrical filter screen 21; the cylindrical filter screen 21 rotates... During the process, the movable inner plate 32 can scrape off the impurities that are difficult to be discharged from the cylindrical filter screen 21, further preventing the impurities from clogging the filter holes on the cylindrical filter screen 21. Thus, the control plate assembly can not only limit the rotation of the cylindrical filter screen 21, but also prevent impurities from clogging the filter holes on the cylindrical filter screen 21. As for the elastic element, the elastic element can be set as a torsion spring 34. One end of the torsion spring 34 is fixedly installed on the movable sleeve plate 31, and the other end of the torsion spring 34 is fixedly connected to the filter pipe 11.

[0055] For the closing assembly, the closing assembly includes a drive rod 41, a push plate 42, a first driven bevel gear 43, a first driving bevel gear 44, a first gear 45, a first connecting rod 46, and a first sliding rod 47; when one sealing plate 63 is provided; the push plate 42 is disposed in the impurity chamber 211, and a second receiving groove 112 adapted to the push plate 42 is opened on the inner surface of the filter pipe 11. The push plate 42 is fixedly installed on the bottom end of the drive rod 41. The drive rod 41 has a sliding part 411 and a toothed part 412. The moving part 411 is slidably connected to the filter pipe 11. The first gear 45 is rotatably mounted on the outer surface of the waste discharge pipe 61, and the first gear 45 is meshed with the toothed part 412. The first driving bevel gear 44 is fixedly connected to the first gear 45. The first driven bevel gear 43 is rotatably mounted on the waste discharge pipe 61, and the first driven bevel gear 43 is meshed with the first driving bevel gear 44. One end of the first connecting rod 46 is fixedly mounted on the shaft of the first driven bevel gear 43. The first sliding rod 47 is fixedly mounted on the first connecting rod 411. On the 6th, a slide rail 631 is fixedly connected to the sealing plate 63. The first slide rod 47 slides in cooperation with the slide rail 631. When the blocking plate 22 contacts the push plate 42, the blocking plate 22 needs to pass over the push plate 42, which will push the push plate 42 to move, causing the drive rod 41 to slide on the filter pipe 11. The toothed part 412 then drives the first gear 45 to rotate, and under the transmission action of the first driving bevel gear 44 and the first driven bevel gear 43, the first connecting rod 46 rotates. The first slide rod 47 then drives the sealing plate 63 to slide on the impurity discharge pipe 61. The sealing plate 63 closes the internal channel of the discharge pipe 61. It should be noted that the opening element is an elastic telescopic rod 49. The fixed end of the elastic telescopic rod 49 is fixedly installed on the discharge pipe 61, and its movable end is fixedly connected to the drive rod 41. When the blocking plate 22 separates from the push plate 42, the elastic telescopic rod 49 pushes the drive rod 41 to slide on the filter pipe 11, causing the push plate 42 to move into the impurity chamber 211. The toothed part 412 causes the first gear 45 to rotate, thereby causing the sealing plate 63 to open the internal channel of the discharge pipe 61.

[0056] When a pair of sealing plates 63 are provided, the drive rod 41 is fixedly connected to the toothed pressure plate 51 through the connecting rod 48. The second gear 52 is rotatably mounted on the outer surface of the discharge pipe 61. The second driving bevel gear 54 is fixedly connected to the second gear 52. The second driven bevel gear 53 is also rotatably mounted on the discharge pipe 61. The second driven bevel gear 53 and the second driving bevel gear 54 are meshed. The second connecting rod 55 is fixedly mounted on the shaft of the second driven bevel gear 53. The second sliding rod 56 is fixedly connected to the second connecting rod 55. The second sliding rod 56 is slidably engaged with the slide rail 631. When the drive rod 41 slides on the filter pipe 11, the toothed part 412 drives the first gear 45 to rotate. The toothed pressure plate 51 can move synchronously with the drive rod 41, driving the second gear 52 to rotate, so that the two sealing plates 63 move relative to each other / backwards. The fixed end of the elastic telescopic rod 49 can be fixedly connected to the discharge pipe 61, and its movable end can be fixedly connected to the connecting rod 48.

[0057] It should be further explained that inclined portions 221 are provided on both sides of the baffle plate 22. When the impurity chamber 211 contacts the push plate 42, only a small force is needed to push the push plate 42 into the second receiving groove 112, reducing the resistance encountered by the cylindrical filter screen 21 when it rotates. A deceleration plate 64 is fixedly installed on the inner surface of the discharge pipe 61 and at the inlet of the discharge pipe 61. The deceleration plate 64 has multiple holes for impurities to pass through. The deceleration plate 64 can slow down the flow speed of chemical wastewater in the discharge pipe 61. When the baffle plate 22 pushes the push plate 42 into the second receiving groove 112, it needs to overcome the elastic force of the elastic telescopic rod 49. The flow speed of chemical wastewater in the discharge pipe 61 is relatively fast, which also increases the resistance when the sealing plate 63 is closed. The flow rate of industrial wastewater reduces the force required for the baffle plate 22 to push the push plate 42. The flow pipe 12 is set in an inclined state, and the outlet end of the flow pipe 12 faces the rotation direction of the column filter screen 21. As a result, the chemical wastewater discharged from the flow pipe 12 exerts a greater thrust on the column filter screen 21. Impurities accumulated on the column filter screen 21 will also slide to the side with the same rotation direction as the column filter screen 21. Therefore, the impurities will slowly cover the filtration area of ​​the column filter screen 21, making the filtration rate of the column filter screen 21 for chemical wastewater more stable. The impurities slide to the side with the same rotation direction as the column filter screen 21, so that the impurities are mainly concentrated on that side. When driving the column filter screen 21 to rotate, the thrust on the column filter screen 21 is also greater.

[0058] Example 3:

[0059] Please combine Figures 1 to 7As shown, multiple filter pipes 11 and multiple flow pipes 12 are provided. The inlet end of the filter pipe 11 is fixedly connected to the outlet end of one flow pipe 12, and the outlet end of the filter pipe 11 is fixedly connected to the inlet end of another flow pipe 12, so that the treatment pipe group is in an "S" shape. The chemical wastewater passes through the flow pipe 12 and the filter pipe 11 in sequence, and the chemical wastewater is filtered in multiple layers. It has the advantages of simple structure, convenient use, good filtration effect and fast speed.

[0060] Example 4:

[0061] Please combine Figures 2 to 8 As shown, the treatment pipe assembly also includes a central pipe 13. A pair of flow pipes 12 are fixedly connected to both ends of the central pipe 13 along its length. The two flow pipes 12 at one end of the central pipe 13 are fixedly connected to the inlet ends of two filter pipes 11, and the two flow pipes 12 at the other end of the central pipe 13 are fixedly connected to the outlet ends of the other two filter pipes 11. In this method, chemical wastewater enters the interior of the two flow pipes 12 through the central pipe 13. The two flow pipes 12 transport the chemical wastewater to the two filter pipes 11, and the other two flow pipes 12 then transport the filtered chemical wastewater from the two filter pipes 11 to another central pipe 13. In this method, the filtration efficiency of chemical wastewater is higher and the treatment speed is faster.

[0062] A multi-layer filtration treatment process for wastewater from chemical production, comprising the aforementioned multi-layer filtration treatment device for wastewater from chemical production, including:

[0063] S1: Connect the treatment pipe group to the chemical wastewater to be treated, so that the chemical wastewater enters the interior of the filter pipe 11 through the flow pipe 12;

[0064] S2: The chemical wastewater entering the filter pipe 11 first comes into contact with the column filter screen 21. The column filter screen 21 blocks and filters some larger impurities in the chemical wastewater. The chemical wastewater passing through the column filter screen 21 enters another flow pipe 12 through the outlet of the filter pipe 11, and then enters the next filter pipe 11 through the flow pipe 12.

[0065] S3: Impurities gradually accumulate on the part of the column filter screen 21 through which the chemical wastewater passes in the flow pipe 12. The impurities reduce the filtration speed of the column filter screen 21, and the water pressure on the column filter screen 21 gradually increases. When the water pressure on the column filter screen 21 is greater than the elastic force of the elastic element, the control plate group rotates to allow a baffle plate 22 to pass through. The column filter screen 21 rotates to remove the part full of impurities from directly above the outlet end of the flow pipe 12, allowing the new part on the column filter screen 21 to enter directly above the flow pipe 12.

[0066] S4: After the baffle plate 22 separates from the push plate 42, the opening component causes the sealing plate 63 to open the internal channel of the discharge pipe 61. The chemical wastewater inside the filter pipe 11 will push the impurities in the impurity chamber 211 into the discharge pipe 61 and discharge them through the discharge pipe 62. When a baffle plate 22 contacts the push plate 42, the closing component causes the sealing plate 63 to close the internal channel of the discharge pipe 61. At this time, the control plate group contacts a baffle plate 22 to prevent the columnar filter screen 21 from continuing to rotate.

[0067] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Those skilled in the art can readily implement the present invention based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the present invention, utilizing the disclosed technical content, are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, or variations made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the present invention.

Claims

1. A multi-layer filtration treatment device for wastewater in chemical production, characterized in that, include: The processing pipe assembly includes a flow pipe (12) and a filter pipe (11) fixedly installed at one end of the flow pipe (12), wherein the filter pipe (11) is arranged perpendicular to the flow pipe (12); A cylindrical filter screen (21) is rotatably installed inside the filter pipe (11) and is located at the water inlet end of the filter pipe (11). There is an impurity cavity (211) between the outer surface of the cylindrical filter screen (21) and the inner surface of the filter pipe (11). Baffle plates (22) are fixedly installed at equal intervals in the circumferential direction of the cylindrical filter screen (21). One end of the baffle plate (22) can be tightly attached to the inner surface of the filter pipe (11). A control panel assembly is rotatably mounted on the inner surface of the filter pipe (11). An elastic element is provided between the control panel assembly and the filter pipe (11). A first receiving groove (111) for accommodating the control panel assembly is provided on the filter pipe (11). A discharge pipe (61) is fixedly installed on the outer surface of the filter pipe (11) and located at the discharge port of the filter pipe (11). A sealing plate (63) is slidably installed on the discharge pipe (61). A closing component is provided between the sealing plate (63) and the filter pipe (11). The closing component is configured such that when one of the baffles (22) is tightly attached to one end of the closing component, the sealing plate (63) closes the internal channel of the discharge pipe (61). An opening component is provided between the closing component and the discharge pipe (61). The opening component is configured such that when the baffles (22) is separated from one end of the closing component, the sealing plate (63) opens the internal channel of the discharge pipe (61). The control panel assembly includes a movable sleeve plate (31), a movable inner plate (32), and a spring (33); The movable sleeve (31) is rotatably mounted on the inner surface of the filter pipe (11). The movable sleeve (31) has a sliding cavity inside. The movable inner plate (32) is slidably disposed in the sliding cavity. The spring (33) is fixedly mounted between the inner surface of the movable sleeve (31) and the movable inner plate (32). The closing assembly includes a drive rod (41), a push plate (42), a first driven bevel gear (43), a first driving bevel gear (44), a first gear (45), a first connecting rod (46), and a first slide rod (47); The push plate (42) is disposed in the impurity chamber (211). The push plate (42) is fixedly mounted on the bottom end of the drive rod (41). The drive rod (41) has a sliding part (411) and a toothed part (412). The sliding part (411) is slidably connected to the filter pipe (11). The first gear (45) is rotatably mounted on the outer surface of the impurity discharge pipe (61). The first gear (45) and the toothed part (412) are in a meshing state. The first active bevel gear (44) and the first The gear (45) is fixedly connected, the first driven bevel gear (43) is rotatably mounted on the waste discharge pipe (61), the first driven bevel gear (43) and the first driving bevel gear (44) are kept in meshing state, one end of the first connecting rod (46) is fixedly mounted on the shaft of the first driven bevel gear (43), the first slide rod (47) is fixedly mounted on the first connecting rod (46), and a slide rail (631) is fixedly connected on the sealing plate (63), and the first slide rod (47) and the slide rail (631) are in sliding cooperation; The flow pipe (12) is set in an inclined state, and the water outlet end of the flow pipe (12) faces the rotation direction of the filter screen (21).

2. The multi-layer filtration treatment device for wastewater in chemical production according to claim 1, characterized in that: Multiple filter pipes (11) and multiple flow pipes (12) are provided. The inlet end of the filter pipe (11) is fixedly connected to the outlet end of one flow pipe (12), and the outlet end of the filter pipe (11) is fixedly connected to the inlet end of another flow pipe (12), so that the treatment pipe group is in an "S" shape.

3. The multi-layer filtration treatment device for wastewater in chemical production according to claim 1, characterized in that: The treatment pipe assembly also includes a central pipe (13), and a pair of flow pipes (12) are fixedly connected to both ends of the central pipe (13) along its length. The two flow pipes (12) at one end of the central pipe (13) are fixedly connected to the inlet ends of two filter pipes (11), and the two flow pipes (12) at the other end of the central pipe (13) are fixedly connected to the outlet ends of the other two filter pipes (11).

4. The multi-layer filtration treatment device for wastewater in chemical production according to claim 1, characterized in that: When the sealing plate (63) is provided in pairs, the drive rod (41) is fixedly connected to the toothed pressure plate (51) through the connecting rod (48). A second gear (52) is rotatably installed on the outer surface of the discharge pipe (61). A second driving bevel gear (54) is fixedly connected to the second gear (52). A second driven bevel gear (53) is also rotatably installed on the discharge pipe (61). The second driven bevel gear (53) and the second driving bevel gear (54) are in a meshing state. A second connecting rod (55) is fixedly installed on the shaft of the second driven bevel gear (53). A second sliding rod (56) is fixedly connected to the second connecting rod (55). The second sliding rod (56) is in sliding cooperation with the slide rail (631).

5. A multi-layer filtration treatment device for wastewater in chemical production according to any one of claims 1-3, characterized in that: Inclined portions (221) are provided on both sides of the baffle plate (22).

6. A multi-layer filtration treatment device for wastewater in chemical production according to any one of claims 1-3, characterized in that: A slowing plate (64) is fixedly installed on the inner surface of the discharge pipe (61) and at the discharge port of the discharge pipe (61). The slowing plate (64) has a plurality of holes for impurities to pass through.

7. A multi-layer filtration treatment process for wastewater from chemical production, comprising the multi-layer filtration treatment device for wastewater from chemical production as described in any one of claims 1-6, characterized in that, include: S1: Connect the treatment pipe group to the chemical wastewater to be treated, so that the chemical wastewater enters the interior of the filter pipe (11) through the flow pipe (12); S2: The chemical wastewater entering the filter pipe (11) first comes into contact with the column filter screen (21). The column filter screen (21) blocks and filters some larger impurities in the chemical wastewater. The chemical wastewater passing through the column filter screen (21) enters another flow pipe (12) through the outlet of the filter pipe (11), and then enters the next filter pipe (11) through the flow pipe (12). S3: Impurities gradually accumulate on the part of the column filter screen (21) through which the chemical wastewater passes in the flow pipe (12). The impurities reduce the filtration speed of the column filter screen (21), and the water pressure on the column filter screen (21) gradually increases. When the water pressure on the column filter screen (21) is greater than the elastic force of the elastic element, the control plate group rotates to allow a baffle plate (22) to pass through. The column filter screen (21) rotates to make the part full of impurities leave the top of the water outlet of the flow pipe (12), so that the new part on the column filter screen (21) enters the top of the flow pipe (12). S4: After the baffle plate (22) separates from the push plate (42), the opening component causes the sealing plate (63) to open the internal channel of the discharge pipe (61). The chemical wastewater inside the filter pipe (11) will push the impurities in the impurity chamber (211) into the discharge pipe (61) and discharge them through the discharge pipe (62). When a baffle plate (22) contacts the push plate (42), the closing component causes the sealing plate (63) to close the internal channel of the discharge pipe (61). At this time, the control plate group contacts a baffle plate (22) to prevent the column filter screen (21) from continuing to rotate.

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