A turbid water ring sedimentation filter

Abstract

This invention relates to the field of industrial automation technology, specifically a turbid circulating water sedimentation and filtration tank. It includes a filtration assembly comprising a sedimentation tank, a screw disposed inside the sedimentation tank, a moving block disposed on the outer wall of the screw, and a filter plate disposed on the outer wall of the moving block; and a clogging assembly comprising a sealing cap disposed on the end face of the sedimentation tank, a first support shaft disposed on the inner wall of the sealing cap, a first helical tooth disposed on the outer wall of the first support shaft, and a first rotating rod disposed on the outer wall of the first helical tooth. This invention solves the air pollution caused by irritating gases by sealing the sedimentation tank, while simultaneously using a mechanical structure to automatically collect internal sediment such as silt, and also collects and treats the internal gases through a silt collection pipe, effectively solving the problems of difficult silt removal and harsh working environment in sedimentation tanks.

Description

Technical Field

[0001] This invention relates to the field of industrial automation technology, and in particular to a turbid circulating water sedimentation and filtration tank. Background Technology

[0002] Turbid water circulation refers to the phenomenon where water exhibits a high concentration of suspended solids, resulting in a cloudy appearance. Suspended solids can include particulate matter, silt, and organic matter, and can originate from natural sources such as sediments, bacteria, and algae, as well as from anthropogenic discharges. Turbid water circulation typically reduces water transparency, affecting both the aesthetics and water quality of the water.

[0003] Among them, turbid circulating water from steel plants refers to wastewater generated during the steel production process. Byproducts such as sludge and exhaust gas generated during the treatment of steel plant wastewater may also pollute the atmospheric environment. For example, volatile organic compounds and particulate matter in exhaust gas. The sedimentation of existing technologies is often done in the open air, which not only reduces the surrounding air quality, but also requires manual removal of sediment, which is a harsh working environment and time-consuming and labor-intensive. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the prior art, the present invention is proposed.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a turbid circulating water sedimentation and filtration tank, which includes a filtration assembly, including a sedimentation tank, a screw disposed inside the sedimentation tank, a movable block disposed on the outer wall of the screw, and a filter plate disposed on the outer wall of the movable block;

[0007] The unblocking assembly includes a sealing cap disposed on the end face of the sedimentation tank, a first support shaft disposed on the inner wall of the sealing cap, a first helical tooth rotatably disposed on the outer wall of the first support shaft, and a first rotating rod disposed on the outer wall of the first helical tooth.

[0008] As a preferred embodiment of the turbid circulating water sedimentation and filtration tank of the present invention, the sedimentation tank has a vertical groove on its inner wall and an annular groove on its inner wall, and the vertical groove and the annular groove are connected. The movable block has a sliding plate on its outer wall, and the sliding plate has a first limiting block on its outer wall that can slide along the inner wall of the vertical groove.

[0009] As a preferred embodiment of the turbid circulating water sedimentation and filtration tank of the present invention, the sedimentation tank is provided with a ring platform on the outer wall, a support base is provided on the outer wall of the ring platform, and a discharge port is provided on the outer wall of the support base, the discharge port being connected to the interior of the support base.

[0010] As a preferred embodiment of the turbid circulating water sedimentation and filtration tank of the present invention, wherein: a motor is provided at the bottom of the sedimentation tank, and the output shaft of the motor extends into the interior of the sedimentation tank and is fixedly connected to the screw.

[0011] As a preferred embodiment of the turbid circulating water sedimentation and filtration tank of the present invention, wherein: a pusher block is fixedly provided at the other end of the first rotating rod away from the first helical tooth, the pusher block is provided with a first movable channel, the first movable channel is provided with a first elastic element, and a pusher plate is slidably provided inside the first movable channel.

[0012] As a preferred embodiment of the turbid circulating water sedimentation and filtration tank of the present invention, the outer wall of the first support shaft is provided with two support rods, and the outer wall of each of the two support rods is rotatably provided with a second helical tooth, the second helical tooth meshing with the first helical tooth; the outer wall of the first support shaft is provided with a third helical tooth, the third helical tooth meshing with the second helical tooth; and the outer wall of the third helical tooth is fixedly connected with a second rotating rod.

[0013] As a preferred embodiment of the turbid circulating water sedimentation and filtration tank of the present invention, wherein: the screw has a limiting plate arranged in a rotating array on the outer wall of one end near the sealing cover, and a second elastic element is provided on the outer wall of the screw, and the other end of the second elastic element is fixedly connected to the outer wall of the limiting plate.

[0014] As a preferred embodiment of the turbid circulating water sedimentation and filtration tank of the present invention, the sedimentation tank is provided with a rotating plate inside, the rotating plate is provided with through holes inside, the inner wall of the through holes is provided with an array of abutment blocks, the end face of the rotating plate is provided with a limiting post, and the end face of the limiting post is provided with a tray.

[0015] As a preferred embodiment of the turbid circulating water sedimentation and filtration tank of the present invention, wherein: the end face of the rotating plate is provided on the sliding plate, the outer wall of the sliding plate is provided with a first slide rail for the limiting column to slide, one end of the sliding plate is provided with a first limiting rod, the interior of the sliding plate is provided with a second movable channel, the inner wall of the sedimentation tank is provided with a third movable channel for the first limiting rod to slide, and the inner wall of the sedimentation tank is provided with a second limiting rod that can slide along the inner wall of the second movable channel.

[0016] As a preferred embodiment of the turbid circulating water sedimentation and filtration tank of the present invention, wherein: the end face of the slide plate is provided with a rack, the outer wall of the third helical tooth is provided with a gear, and the rack is meshed with the gear.

[0017] The beneficial effects of this invention are as follows: This invention solves the air pollution caused by irritating gases by using a closed sedimentation tank. At the same time, it uses a mechanical structure to automatically collect the sediment such as mud and sand inside the tank, and collects and treats the internal gases together through the mud and sand collection pipe. This effectively solves the problems of difficult mud and sand cleaning and harsh working environment in sedimentation tanks. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0019] Figure 1 This is a schematic diagram of the overall appearance of the present invention.

[0020] Figure 2 This is a schematic cross-sectional view of the overall structure in this invention.

[0021] Figure 3 This is a schematic diagram of the internal structure of the sedimentation tank in this invention.

[0022] Figure 4 This is a schematic diagram showing the connection between the pusher block and the pusher plate in this invention.

[0023] Figure 5 This is a schematic diagram of the mating structure of the rotating plate and the screw in this invention. Detailed Implementation

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0027] Example 1

[0028] Reference Figures 1-2This is the first embodiment of the present invention. This embodiment provides a turbid circulating water sedimentation and filtration tank, including a filtration assembly 100, which includes a sedimentation tank 101, a screw 102 disposed inside the sedimentation tank 101, a moving block 103 disposed on the outer wall of the screw 102, and a filter plate 104 disposed on the outer wall of the moving block 103.

[0029] The sedimentation tank 101 has an open top structure, with one end of the screw 102 extending out from below. The inner wall of the movable block 103 on the outer wall of the screw 102 has threads that fit the outer wall of the screw 102. When the screw 102 rotates, the limiting block 103 can rise or fall. The outer wall of the movable block 103 is equipped with a filter plate 104, which can filter particles such as silt. The filter plate 104 has a sloping fan-shaped structure, and the outer wall of the filter plate 104 fits against the inner wall of the sedimentation tank 101. By inputting turbid circulating water into the sedimentation tank 101, the water is discharged from the bottom after it settles. Rotating the screw 102 drives the movable block 103 to move upward, while lifting the silt on the filter plate 104. This eliminates the need for manual cleaning in the tank, greatly reducing the intensity of manual labor.

[0030] Preferably, the inner wall of the sedimentation tank 101 is provided with a vertical groove 101a and an annular groove 101b, and the vertical groove 101a and the annular groove 101b are connected. The outer wall of the moving block 103 is provided with a sliding plate 105, and the outer wall of the sliding plate 105 is provided with a first limiting block 105a that can slide along the inner wall of the vertical groove 101a.

[0031] The sedimentation tank 101 has two vertical grooves 101a on its inner wall, and the two vertical grooves 101a are symmetrical about the plane of the sedimentation tank 101 axis. The upper end of each vertical groove 101a connects to an annular groove 101b. When the screw 102 rotates, causing the moving block 103 to move upwards, the sliding plate 105 on the outer wall of the moving block 103 moves upwards. Because the first limiting block 105a on the outer wall of the sliding plate 105 slides along the vertical groove 101a, it restricts the rotation of the moving block 103. The screw 102 then causes the moving block 103 to rise. The filter plate 104 is on the upper surface of the tray 105. When the moving block 103 moves upward, it drives the tray 105 to move upward. When the first limiting block 105a moves to the end of the vertical groove 101a, it then enters the annular groove 101b. Then the screw 102 is rotated. Due to the restriction of the annular groove 101b, the tray 105 will rotate along the inside of the annular groove 101b. This method can wait for the sediment to dry, and then rotate the screw 102 to use centrifugal force to throw out the sediment, and then collect it. The collection effect is better after drying.

[0032] The sedimentation tank 101 has an outer ring platform 101c on its outer wall, a support base 106 on the outer wall of the ring platform 101c, and a discharge port 106a on the outer wall of the support base 106, which is connected to the interior of the support base 106.

[0033] The outer wall of the sedimentation tank 101 has an annular platform 101c, which is an inclined platform. The support base 106 is a cylindrical structure. The inner wall of the support base 106 is the same size as the outer wall of the annular platform 101c. There is an inclined platform 101c between the support base 106 and the sedimentation tank 101, which is equivalent to forming a transport inclined surface. The centrifugal force of the screw 102 is used to throw the sediment between the sedimentation tank 101 and the support base 106. The sediment slides out from the discharge port 106a along the inclined surface and then enters the next stage of processing.

[0034] A motor 107 is provided at the bottom of the sedimentation tank 101, and the output shaft of the motor 107 extends into the interior of the sedimentation tank 101 and is fixedly connected to the screw 102.

[0035] The motor 107 is fixed to the bottom of the sedimentation tank 101.

[0036] In summary, the turbid circulating water is discharged into the sedimentation tank 101. After sedimentation, it is discharged from the bottom of the sedimentation tank 101. Then, the motor 107 is started, driving the screw 102 to rotate. The sediment inside is then lifted by the moving block 103. Then, the first limiting block 105a enters the annular groove 101b. Continuing to rotate the screw 102 can drive the moving block 103 to rotate. At this time, the operator can clean the sediment into the surface of the ring platform 101c, or accelerate the motor 107 to throw the sediment into the ring platform 101c. Then, the motor 107 reverses, the first limiting block 105a enters the vertical groove 101a, and the moving block 103 slides along the outer wall of the screw 102 and falls into the bottom of the sedimentation tank 101, where the turbid circulating water is re-injected.

[0037] Example 2

[0038] Reference Figures 1-4 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but the difference is that, in order to reduce manual labor and reduce the pollution of the environment by the odor of the turbid circulating water, the entire operation is completed by machinery.

[0039] The unblocking assembly 200 includes a sealing cap 201 disposed on the end face of the sedimentation tank 101, a first support shaft 201a disposed on the inner wall of the sealing cap 201, a first helical tooth 202 rotatably disposed on the outer wall of the first support shaft 201a, and a first rotating rod 203 disposed on the outer wall of the first helical tooth 202.

[0040] The sealing plate 201 covers the upper surface of the support base 106, and together with the support base 106 and the ring platform 101c, seals the interior. Gas exits from the discharge port 106a, and the other end of the discharge port 106a is connected to a collection device. The sealing cover 201 can be connected to a heating device. When the sediment is raised, the sealing plate 201 can be activated to heat the interior, accelerate the drying of the sediment, accelerate the rotation of the motor 107, and facilitate the ejection of the sediment. The outer wall of the first support shaft 201a on the inner wall of the sealing plate 201 is provided with a first helical tooth 202, and the first helical tooth 202 is connected to the first support shaft 201a by a bearing to realize the rotation of the first helical tooth 202. The first rotating rod 203 is fixed to the outer wall of the first helical tooth 202, and the other end can rotate between the sedimentation tank 101 and the support base 106. The axis of the first support shaft 201a is the same straight line as the axis of the sedimentation tank 101.

[0041] A pusher block 204 is fixedly provided at the other end of the first rotating rod 203 away from the first helical tooth 202. The pusher block 204 has a first movable channel 204a inside. The first movable channel 204a has a first elastic element 205 inside. A pusher plate 206 is slidably provided inside the first movable channel 204a.

[0042] In this configuration, one end of the first rotating rod 203, which rotates between the sedimentation tank 101 and the support base 106, is fixedly connected to a pusher block 204. The bottom of the pusher block 204 has a first movable channel 204a, and the bottom of the first movable channel 204a is fixedly connected to a first elastic element 205, which is a compression spring. The other end of the first elastic element 205 is fixedly connected to a pusher plate 206, which allows the pusher plate 206 to slide along the inner wall of the first movable channel 204a. When the sediment enters the surface of the ring platform 101c, the first helical tooth 202 is then rotated to push the pusher plate 206 to slide along the surface of the ring platform, pushing the sediment into the discharge port 106a.

[0043] The outer wall of the first support shaft 201a is provided with two support rods 201a-1. The outer wall of each support rod 201a-1 is provided with a second helical tooth 207, which meshes with the first helical tooth 202. The outer wall of the first support shaft 201a is provided with a third helical tooth 208, which meshes with the second helical tooth 207.

[0044] The first support shaft 201a has two support rods 201a-1 arranged on its outer wall. The outer wall of each support rod 201a-1 is rotatably equipped with a second helical tooth 207, which is also connected to the outer wall of the support rod 201a-1 via a bearing, enabling the second helical tooth 207 to rotate. The second helical tooth 207 is below the first helical tooth 202 and is engaged with it. A third helical tooth 208 is connected to the outer wall of the first support shaft 201a in the same manner, and the third helical tooth 208 is located below the second helical tooth 207. Below, a second rotating rod 209 is fixedly connected to the outer wall of the third helical tooth 208. The other end of the second rotating rod 209 is connected to a pusher block 204. When the first helical tooth 202 rotates and drives the first rotating rod 203 to rotate, the third helical tooth 208 is driven to rotate through gear transmission. The third helical tooth 208 rotates in the opposite direction to the first helical tooth 202. Then the first rotating rod 203 and the second rotating rod 209 will push the sediment into the discharge port 106a along the surface of the ring platform 101c.

[0045] Example 3

[0046] Reference Figures 1-5 This is the third embodiment of the present invention. This embodiment is based on the previous embodiment, except that the screw 102 is used to rotate to drive the unblocking component 200 to clean the sediment.

[0047] The screw 102 has a limiting plate 301 arranged in a rotating array on the outer wall of one end near the sealing cover 201. The outer wall of the screw 102 has a second elastic element 301a, and the other end of the second elastic element 301a is fixedly connected to the outer wall of the limiting plate 301.

[0048] Among them, the upper outer wall of the screw 102 is provided with a limiting plate 301 in a circumferential array. The outer wall of the limiting plate 301 is fixedly connected with a second elastic element 301a, which is a compression spring. The other end of the second elastic element 301a is fixedly connected to the outer wall of the screw 102, so that the limiting plate 301 can automatically reset when it is squeezed.

[0049] The sedimentation tank 101 is provided with a rotating plate 302 inside, the rotating plate 302 is provided with a through hole 302a inside, the inner wall of the through hole 302a is provided with an array of abutting blocks 302a-1, the end face of the rotating plate 302 is provided with a limiting post 302b, and the end face of the limiting post 302b is provided with a tray 302b-1.

[0050] The sedimentation tank 101 has a through hole 302a at the axial center of the rotating plate 302. The through hole 302a has a circumferential array of abutment blocks 302a-1, which can abut against the limiting plate 301. When the screw 102 rotates and drives the moving block 103 to rise, the limiting plate 301 rotates and hits the surface of the abutment block 302a-1. The abutment block 302a-1 squeezes the limiting plate 301 and squeezes the second elastic element 301a. The screw 102 cannot drive the rotating plate 302 to rotate. When the screw 102 drives the moving block 103 to fall, the limiting plate 301 abuts against the outer wall of the abutment block 302a-1. Then the screw 102 is rotated, driving the rotating plate 302 to rotate.

[0051] The rotating plate 302 is mounted on the slide plate 303. The outer wall of the slide plate 303 is provided with a first slide rail 303a for sliding the limiting post 302b. One end of the slide plate 303 is provided with a first limiting rod 303b. The interior of the slide plate 303 is provided with a second movable channel 303c. The inner wall of the sedimentation tank 101 is provided with a third movable channel 304 for sliding the first limiting rod 303b. The inner wall of the sedimentation tank 101 is provided with a second limiting rod 305 for sliding along the inner wall of the second movable channel 303c.

[0052] The rotating plate 302 has a sliding plate 303 on its upper surface. One end of the sliding plate 303 has a strip-shaped first slide rail 303a. The limiting post 302b on the upper surface of the rotating plate 302 passes through the first slide rail 303a, and the lower surface of the tray 302b-1 on the upper surface of the limiting post 302b is attached to the upper surface of the sliding plate 303. At the same time, the sliding plate 303 has a second movable channel 303 inside. The second movable channel 303c slides in conjunction with the second limiting rod 305, and the first limiting rod 303b at the other end slides along the third movable channel 304 to realize the linear movement of the sliding plate 303. When the screw 102 drives the rotating plate 302 to rotate, the limiting post 302b on the rotating plate 302 rotates and drives the sliding plate 303 to make linear movement.

[0053] The end face of the slide plate 303 is provided with a rack 306, and the outer wall of the third helical tooth 208 is provided with a gear 307. The rack 306 and the gear 307 are meshed and connected.

[0054] Among them, a rack 306 is fixedly connected to the upper surface of the slide plate 303, and a gear 307 is fixedly connected to the outer wall of the third helical tooth 208. The gear 307 meshes with the rack 306. When the slide plate 303 performs reciprocating motion, the rack 306 drives the gear 307 to rotate. At the same time, through gear transmission, the gear is transmitted to the first helical tooth 202, so that the first rotating rod 203 and the second rotating rod 209 perform reciprocating motion. The pusher block 204 at the lower end of the first rotating rod 203 and the second rotating rod 209 will not come into contact. The pusher block 204 continuously pushes the sediment on the surface of the ring platform 101c, and at the same time plays a cleaning role to prevent the sediment from accumulating on the ring platform 101c.

[0055] In summary, the starting motor 107 drives the screw 102 to rotate, simultaneously pushing the moving block 103 upward. When the sediment is lifted to the top, it is dried by heating, allowing the sand to slide better. Then, the rotation of the motor 107 is accelerated, and the sediment is thrown onto the surface of the ring platform 101c. Then, the motor 107 is reversed. At this time, the limiting plate 301 on the outer wall of the screw 102 abuts against the abutting block 302a-1, driving the rotating plate 302 to rotate. Then, the rotating plate 302 drives the sliding plate 303 to perform linear reciprocating motion. The rack 306 drives the gear 307 to perform reciprocating motion, and then drives the first rotating rod 203 and the second rotating rod 209 to perform reciprocating motion through gear transmission. When the moving block 103 falls to the bottom of the sedimentation tank 101, the rotation of the motor 107 stops.

[0056] The entire equipment achieves closed sedimentation, and gas can be discharged through the discharge port 106a. At the same time, the sediment does not require manual cleaning, effectively solving the problems of poor working environment and cumbersome, time-consuming and labor-intensive operation of existing technologies.

[0057] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0058] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0059] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A turbid water settling filter tank, characterized by: include, The filter assembly (100) includes a sedimentation tank (101), a screw (102) disposed inside the sedimentation tank (101), a movable block (103) disposed on the outer wall of the screw (102), and a filter plate (104) disposed on the outer wall of the movable block (103). The unclogging assembly (200) includes a sealing cap (201) disposed on the end face of the sedimentation tank (101), a first support shaft (201a) disposed on the inner wall of the sealing cap (201), a first helical tooth (202) rotatably disposed on the outer wall of the first support shaft (201a), and a first rotating rod (203) disposed on the outer wall of the first helical tooth (202). The sedimentation tank (101) has a vertical groove (101a) on its inner wall and an annular groove (101b) on its inner wall, and the vertical groove (101a) and the annular groove (101b) are connected. The movable block (103) has a sliding plate (105) on its outer wall, and the sliding plate (105) has a first limiting block (105a) on its outer wall that can slide along the inner wall of the vertical groove (101a). The sedimentation tank (101) has an outer ring platform (101c) on its outer wall, a support base (106) on the outer wall of the ring platform (101c), and a discharge port (106a) on the outer wall of the support base (106). The discharge port (106a) communicates with the interior of the support base (106). A pusher block (204) is fixedly provided at the other end of the first rotating rod (203) away from the first helical tooth (202). The pusher block (204) is provided with a first movable channel (204a) inside. A first elastic element (205) is provided inside the first movable channel (204a). A pusher plate (206) is slidably provided inside the first movable channel (204a). The outer wall of the first support shaft (201a) is provided with two support rods (201a-1). The outer wall of each of the two support rods (201a-1) is provided with a second helical tooth (207). The second helical tooth (207) is meshed with the first helical tooth (202). The outer wall of the first support shaft (201a) is provided with a third helical tooth (208). The third helical tooth (208) is meshed with the second helical tooth (207). The outer wall of the third helical tooth (208) is fixedly connected with a second rotating rod (209). The screw (102) has a limiting plate (301) arranged in a rotating array on the outer wall of one end near the sealing cap (201). The outer wall of the screw (102) is provided with a second elastic element (301a), and the other end of the second elastic element (301a) is fixedly connected to the outer wall of the limiting plate (301). The sedimentation tank (101) is provided with a rotating plate (302) inside. The rotating plate (302) is provided with a through hole (302a) inside. The inner wall of the through hole (302a) is provided with an array of abutment blocks (302a-1). The end face of the rotating plate (302) is provided with a limiting post (302b). The end face of the limiting post (302b) is provided with a tray (302b-1). The rotating plate (302) is slidably provided with a sliding plate (303) on its end face. The outer wall of the sliding plate (303) is provided with a first slide rail (303a) for the sliding of the limiting post (302b). One end of the sliding plate (303) is provided with a first limiting rod (303b). The sliding plate (303) is provided with a second movable channel (303c) inside. The inner wall of the sedimentation tank (101) is provided with a third movable channel (304) for the sliding of the first limiting rod (303b). The inner wall of the sedimentation tank (101) is provided with a second limiting rod (305) for sliding along the inner wall of the second movable channel (303c). The end face of the slide plate (303) is provided with a rack (306), and the outer wall of the third helical tooth (208) is provided with a gear (307). The rack (306) and the gear (307) are meshed and connected.

2. The turbid circulating water sedimentation and filtration tank as described in claim 1, characterized in that: The sedimentation tank (101) is equipped with a motor (107) at the bottom, and the output shaft of the motor (107) extends into the interior of the sedimentation tank (101) and is fixedly connected to the screw (102).

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