Radiation refrigeration coating filtering equipment

By designing radiation refrigeration coating filtration equipment with automated scraping and multi-stage filtration, the problem of easy clogging of the filter net is solved, the production efficiency and coating quality are improved, and the operation process is simplified.

CN120459710AInactive Publication Date: 2025-08-12SICHUAN HENENG TIANCHENG NEW ENERGY TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202510690324.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-27
Publication Date
2025-08-12
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The filter mesh of existing radiation refrigeration coating filter equipment is easily blocked and requires frequent disassembly and cleaning, which is inconvenient to operate and affects production efficiency.

Method used

A radiation refrigeration coating filter equipment is designed, using two pairs of first filter plates and second filter plates, combined with scraper and connecting hopper, to automatically scrape off the screen, avoid clogging of the filter screen, and adjust the filter plate angle through a linear mechanism to extend the filter path, increase the contact time of the cluster, and promote the flow of the paint.

Benefits of technology

Effectively avoid filter clogging, improve the automation and production efficiency of filter equipment, simplify the operation process, and ensure the delicateness and gloss of the paint.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120459710A_ABST
    Figure CN120459710A_ABST
Patent Text Reader

Abstract

The invention provides radiation refrigeration coating filtering equipment, and belongs to the technical field of radiation refrigeration coating production, and the equipment comprises a mounting plate which is horizontally and movably arranged in the vertical direction; one ends of the two pairs of first filter plates are rotationally connected to the two sides of the mounting plate respectively; the two sliding rails are horizontally arranged and are perpendicular to the rotating axis of the first filter plate; the two pairs of first scrapers are horizontally arranged in the length direction of the sliding rail, and the two first scrapers are synchronously and reversely moved along the sliding rail; the two pairs of movable plates are respectively arranged below the first scraping plates in parallel; the two first material receiving hoppers are detachably arranged at one ends of the movable plates respectively; the second filter plate is horizontally arranged below the first filter plate; the pair of second scrapers are vertically erected on the upper surface of the second filter plate; the two second material receiving hoppers are detachably arranged on the two sides of the lower portion of the second filter plate and used for collecting the oversize materials scraped by the second scraper blade. The filtering equipment can effectively prevent the filter screen from being blocked and improve the coating production efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present application belongs to the technical field of radiant cooling paint production, and in particular relates to a radiant cooling paint filtering device. Background Art

[0002] Radiative cooling coatings use specific wavelengths (such as the 8-13 micron atmospheric window) to radiate heat into outer space, thereby lowering the temperature of objects. Compared with ordinary coatings, radiative cooling coatings require the use of highly reflective materials such as titanium dioxide and zinc oxide, as well as certain metal oxides or photonic crystal structures to enhance radiative heat dissipation.

[0003] The production process of radiant cooling paint usually includes operations such as mixing, dispersing, grinding, and filtering. However, the filter screens used in existing paint filtering equipment will become clogged after a period of use, requiring frequent manual disassembly and cleaning, which is inconvenient. Summary of the Invention

[0004] In order to address the deficiencies of the above-mentioned prior art, the present application provides a radiation cooling paint filtering device, which can effectively avoid filter clogging and improve paint production efficiency.

[0005] In order to achieve the above object, the present invention adopts the following technologies: A radiation cooling paint filtering device, comprising: The mounting plate is arranged horizontally and movable in the vertical direction; One end of the two pairs of first filter plates is rotatably connected to both sides of the mounting plate, and the two rotation axes corresponding to the two first filter plates are arranged in parallel and the plane formed by them is always arranged horizontally; Two slide rails are arranged horizontally and perpendicular to the rotation axis of the first filter plate and are respectively located on both sides of the first filter plate, and the other end of the first filter plate moves and fits on the slide rails; Two pairs of first scrapers are arranged horizontally and in the length direction of the slide rail and are respectively located on both sides of the mounting plate. The two first scrapers are arranged to move synchronously in opposite directions along the slide rail. The length of the first scraper is adapted to the length of the first filter plate. One end of the first scraper is used to scrape off the screen material of the first filter plate; Two pairs of movable plates are respectively arranged parallel to the bottom of the first scraper and move synchronously with the corresponding scraper, and a channel for the first filter plate to enter is formed between the movable plates and the corresponding first scraper; Two first receiving hoppers are detachably provided at one end of the movable plate, the openings of the receiving hoppers are vertically upward, one end of the first scraper is located above the openings of the receiving hoppers, and the receiving hoppers are used to collect the screen material scraped by the first scraper; The second filter plate is horizontally arranged below the first filter plate and arranged in the length direction of the slide rail. The second filter plate is arranged to reciprocate along its own width direction. The mesh number of the second filter plate is higher than that of the first filter plate. A pair of second scrapers are vertically mounted on the upper surface of the second filter plate and face the length direction of the slide rail; when the two first scrapers move toward each other, the two second scrapers simultaneously move away from each other; when the two first scrapers move away from each other, the two second scrapers simultaneously move toward each other; the lower end of the first scraper is used to scrape off the material on the second filter plate; Two second receiving hoppers are detachably arranged on both sides below the second filter plate and are used to collect the screen material scraped off by the second scraper.

[0006] The beneficial effects of the present invention are: 1. After filtration, the first and second scrapers can be used to scrape the first and second filter plates respectively to keep the filter plates clean and avoid clogging. There is no need to frequently disassemble the filter plates for cleaning. The scraping process is highly automated and easy to operate. At the same time, the first and second receiving hoppers can be used to effectively collect the scraped oversize material. The operator only needs to replace or clean the receiving hoppers regularly. 2. By setting up the linear mechanism and the mounting plate, and coordinating the rotational connection between the mounting plate and the first filter plate, the first filter plate is tilted, which can effectively extend the filtration path, increase the contact time between the agglomerates and the first filter plate, and improve the interception efficiency. At the same time, the agglomerates slide to the lower side of the tilt under the action of gravity, forming a filter cake with a gradient thickness, which can effectively reduce the overall filtration resistance. 3. The reciprocating movement of the first filter plate can promote the flow of the paint on the second filter plate to avoid accumulation, thereby improving the filtration efficiency, and cooperating with the first filter plate to perform multi-stage filtration of the paint, so that the paint has better fineness and gloss. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the main structure of the filtering device of the embodiment of the present application.

[0008] Figure 2 It is a cross-sectional view of the filtering device according to an embodiment of the present application.

[0009] Figure 3 It is a structural schematic diagram of the second filter plate and the second scraper in an embodiment of the present application.

[0010] Figure 4 It is a structural schematic diagram of the L-shaped plate of an embodiment of the present application.

[0011] Figure 5 yes Figure 2 A magnified view of the part in center A.

[0012] Figure 6 yes Figure 1 A magnified view of the part B in the middle.

[0013] Figure 7 yes Figure 1 Enlarged view of the part C in the middle.

[0014] Figure 8 yes Figure 1 A magnified view of the detail in middle D.

[0015] Figure 9 yes Figure 4 Enlarged view of the detail in middle E.

[0016] Figure 10 yes Figure 3 Enlarged view of the part F in the middle.

[0017] Reference numerals: 1-mounting plate, 11-linear mechanism, 2-first filter plate, 21-upper side plate, 22-end plate, 23-torsion spring, 24-first pulley, 25-lower side plate, 3-slide rail, 31-rotating shaft, 32-driving motor, 33-gear, 34-first guide groove, 35-rotating seat, 36-second guide groove, 4-first scraper, 41-connecting plate, 5-movable plate, 51-mounting column, 52-matching rod, 53-rack, 54-mounting slot, 55-vertical rod, 56-bracket, 57-second pulley, 6-first receiving hopper, 7-second filter plate, 71-base, 72-support platform, 73-rack rack, 74-support rod, 75-slide rod, 76-slider, 77-strip plate, 78-L-shaped plate, 79-support plate, 791-telescopic rod, 792-spring, 8-second scraper, 81-top plate, 82-strip hole, 83-horizontal plate, 9-second receiving hopper. DETAILED DESCRIPTION

[0018] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the embodiments described in the present invention are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Example 1 The present application embodiment provides a radiation cooling paint filtering device, such as Figures 1 to 6 As shown, the equipment includes: a mounting plate 1, two pairs of first filter plates 2, two slide rails 3, two pairs of first scrapers 4, two pairs of movable plates 5, two first receiving hoppers 6, a second filter plate 7, a pair of second scrapers 8, two second receiving hoppers 9, etc.

[0020] Among them, such as Figure 1 As shown, the mounting plate 1 is arranged horizontally, and a linear mechanism 11 is provided above it, whose movable end is vertically connected to the top surface of the mounting plate 1. The linear mechanism 11 can be in the form of a linear cylinder, a hydraulic cylinder, etc.

[0021] like Figure 1 As shown, one end of the two first filter plates 2 is rotatably connected to both sides of the mounting plate 1 , and the two rotation axes corresponding to the two first filter plates 2 are arranged in parallel and the plane formed by them is always arranged horizontally.

[0022] like Figure 1 and Figure 3 As shown, the two slide rails 3 are horizontally arranged and perpendicular to the rotation axis of the first filter plate 2 and are respectively located on both sides of the first filter plate 2. First guide grooves 34 are opened on the opposite surfaces of the two slide rails 3. The first guide grooves 34 are arranged along the length direction of the slide rails 3. First pulleys 24 are rotatably provided on both sides of the other end of the first filter plate 2. The rotation axis thereof is horizontally arranged and perpendicular to the length direction of the slide rails 3. The two first pulleys 24 are rollingly fitted in the first guide grooves 34. When in use, the inclination angles of the two first filter plates 2 can be adjusted by controlling the extension and retraction of the movable end of the linear mechanism 11.

[0023] like Figure 2 and Figure 5 As shown, the first scrapers 4 are arranged horizontally and in the length direction of the slide rail 3 and are located on both sides of the mounting plate 1. The two first scrapers 4 are arranged to move synchronously in opposite directions along the slide rail 3. The length of the first scrapers 4 is adapted to the length of the first filter plate 2. After the inclined first filter plate 2 has filtered the paint for a period of time, the two first scrapers 4 are separated back to back to a predetermined distance to leave adjustment space for the first filter plate 2. When the linear mechanism 11 adjusts the two first filter plates 2 to a horizontal state, the surface of the first filter plate 2 and the bottom surface of the first scraper 4 are coplanar. The two first scrapers 4 are then brought closer together, and the opposite side of the first scraper 4 moves against the surface of the first filter plate 2, thereby causing the first scraper 4 to move toward one end of the mounting plate 1 to scrape off the screened material on the surface of the first filter plate 2.

[0024] like Figure 2 and Figure 5 As shown, the two movable plates 5 are respectively arranged in parallel below the corresponding first scraper 4, and the other end of the first scraper 4 is connected to the other end of the corresponding movable plate 5 by a connecting plate 41. A channel for the first filter plate 2 to enter is formed between the movable plate 5 and the corresponding first scraper 4; the two first material receiving hoppers 6 are respectively detachably arranged at one end of the movable plate 5 and located below the first filter plate 2, the opening of the first material receiving hopper 6 is vertically facing upward, and the end of the first scraper 4 facing the mounting plate 1 is located above the opening of the first material receiving hopper 6. During use, the first filter plate 2 is adjusted to a horizontal state after filtering, the two first scrapers 4 are synchronously moved closer to each other, and the movable plate 5 moves synchronously with the first scraper 4. One end of the first scraper 4 scrapes off the oversize material of the first filter plate 2, and at the same time gathers the oversize material at the end face of the first scraper 4. When the first scraper 4 pushes the gathered oversize material out of the end edge of the first filter plate 2, the first receiving hopper 6 also moves out of the end edge of the first filter plate 2 synchronously with the movable plate 5, and receives and collects the oversize material scraped out by one end of the first scraper 4. Then, the two first scrapers 4 are separated back to back to a predetermined distance, and the linear mechanism 11 adjusts the first filter plate 2 to an inclined state to continue filtering.

[0025] like Figure 1 and Figure 4As shown, the second filter plate 7 is horizontally arranged below the first filter plate 2 and arranged toward the length direction of the slide rail 3, for receiving and filtering the paint filtered by the first filter plate 2, and the second filter plate 7 is reciprocatingly arranged along its own width direction. Specifically, a base 71 is provided below the second filter plate 7, and two slide bars 75 are fixedly mounted above the base 71 through support rods 74. The slide bars 75 face the width direction of the second filter plate 7 and are located at both ends of the second filter plate 7; both ends of the second filter plate 7 are provided with sliders 76, which are slidably penetrated on the corresponding slide bars 75, and a rotating rod can be mounted on the base 71, the rotating rod facing the length direction of the second filter plate 7 and located at the outer side below the second filter plate 7, the rotating rod is driven by a motor, and a crank is set on the rotating rod, and the crank is connected to the slider 76 by a connecting rod, so that the circular motion of the crank can be converted into the reciprocating motion of the slider 76 along the slide bar 75, that is, the reciprocating motion of the second filter plate 7 is realized.

[0026] like Figures 1 to 4 As shown, the two second scrapers 8 are vertically mounted on the upper surface of the second filter plate 7 and face the length direction of the slide rail 3. The bottom surface of the movable plate 5 is vertically provided with a mounting column 51. The lower end of the mounting column 51 is rotatably connected to one end of the two matching rods 52. The corresponding two rotation axes are arranged in an array along the width direction of the second filter plate 7 and are vertically set. The other ends of the two matching rods 52 are rotatably connected to the end of the second scraper 8, and the corresponding two rotation axes are vertically set. Under the action of the matching rods 52, when the two first scrapers 4 move toward each other, the two second scrapers 8 are synchronously separated in their backs; when the two first scrapers 4 are separated in their backs, the two second scrapers 8 are synchronously moved toward each other, that is, when the two first scrapers 4 move relatively close to each other to scrape the first filter plate 2, the two second scrapers 8 can be synchronously driven from the middle of the second filter plate 7 to both sides to scrape the second filter plate 7.

[0027] like Figure 1 and Figure 3 As shown, two second receiving hoppers 9 are detachably provided on both sides below the second filter plate 7 for collecting the screen material scraped off by the second scraper 8 .

[0028] The working principle of the filtering device is now described in combination with the above structure: During application, the linear mechanism 11 is first contracted to drive the mounting plate 1 to move upward, so that the two first filter plates 2 are tilted fifteen to thirty degrees, and the paint is slowly input from the upper end of the first filter plate 2, so that the paint flows along the inclined surface of the first filter plate 2. The inclined first filter plate 2 can effectively extend the filtration path, increase the contact time between the agglomerates and the first filter plate 2, and improve the interception efficiency; at the same time, the agglomerates slide to the inclined lower side under the action of gravity, forming a thickness gradient filter cake, which can effectively reduce the overall filtration resistance; the paint filtered by the first filter plate 2 falls on the second filter plate 7 with a higher mesh number. The second filter plate 7 mainly filters some solid particles. Under the action of the crank-connecting rod mechanism and the motor, the second filter plate 7 reciprocates in a straight line, which can promote the flow of paint on the second filter plate 7, avoid accumulation, and thus improve the filtration efficiency; a collecting part can be provided on the base 71 below the second filter plate 7 to collect the paint filtered by the second filter plate 7.

[0029] The filtering device can perform multi-stage filtering on the paint, so that the paint has better fineness and glossiness.

[0030] When it is necessary to scrape the first filter plate 2 and the second filter plate 7, the two first scrapers 4 are separated back to back to a predetermined distance to leave adjustment space for the first filter plate 2. The extension of the linear mechanism 11 drives the mounting plate 1 to rotate from tilted to horizontal. Accordingly, a positioning structure can be provided on the movement stroke of the mounting plate 1 to ensure that the mounting plate 1 can be accurately positioned to a horizontal state. After that, the two first scrapers 4 are relatively close to each other, and the movable plate 5 moves with the second scraper 8. While the first scraper 4 scrapes the first filter plate 2, under the action of the mounting column 51 and the matching rod 52, the two second scrapers 8 are separated back to back and scrape the second filter plate 7 from the middle to both sides. The oversize material scraped by the first scraper 4 is collected by the first receiving hopper 6, and the oversize material scraped by the second scraper 8 is collected by the second receiving hopper 9. After each filtration is completed, the first scraper 4 and the second scraper 8 can be used to scrape the first filter plate 2 and the second filter plate 7 respectively to keep the filter plates clean and avoid clogging. There is no need to frequently disassemble the filter plates for cleaning, and the scraping process is highly automated and easy to operate. At the same time, through the setting of the first receiving hopper 6 and the second receiving hopper 9, the scraped screen material can be effectively collected, and the operator only needs to replace or clean the receiving hopper regularly. And under the action of the mounting column 51 and the matching rod 52, the second scraper 8 can move with the movement of the first scraper 4. The structure is more ingenious and the scraping efficiency is higher.

[0031] Specifically, such as Figure 6 and Figure 7 As shown, mounting grooves 54 are provided on the opposite surfaces of the two mounting columns 51, and two vertical rods 55 are arranged in an array along the width direction of the second filter plate 7 in the mounting grooves 54. One end of the two matching rods 52 is rotatably provided on the corresponding vertical rod 55, and the other end of the two matching rods 52 is rotatably connected to the end of the corresponding second scraper 8, and the two corresponding rotation axes are vertically arranged.

[0032] Specifically, such as Figure 6 、 Figure 7 、 Figure 10 As shown, the upper ends of the two second scrapers 4 are arranged in an inclined manner. When the two first scrapers 4 are separated back to back to a predetermined distance, the two second scrapers 4 abut against each other and the upper ends of the two second scrapers 4 can form a drainage top of a triangular structure with the top angle facing upward. Under the inclined setting of the upper ends of the second scrapers 4, after the paint filtered by the first filter plate 2 falls on the drainage top, the paint can fall on the second filter plate 7 along the inclined surface, which can effectively prevent the paint from falling on the top of the second scraper 8 and not easily falling, affecting the filtration efficiency and causing paint waste.

[0033] Specifically, such as Figure 3 and Figure 6 As shown, two pairs of L-shaped brackets 56 are provided at the bottom of the movable plate 5. The horizontal parts of the brackets 56 face the width direction of the first scraper 4 and are connected to the bottom of the movable plate 5. The vertical parts of the two pairs of brackets 56 are vertically arranged and are respectively located on the outside of the corresponding slide rails 3. Second guide grooves 36 are provided on the facing surfaces of the two slide rails 3. The first guide grooves 36 are arranged along the length direction of the slide rails 3. A second pulley 57 is rotatably provided on the vertical part of the bracket 56, and its rotation axis faces the width direction of the first scraper 4. The second pulleys 57 are respectively rollingly fitted in the corresponding second guide grooves 36.

[0034] Example 2 As a further implementation of the above embodiment, Figure 1 and Figure 3 As shown, a pair of support platforms 72 are vertically provided on the base 71, and the two ends of the slide rail 3 are fixedly connected to the corresponding support platforms 72. A rack frame 73 is provided on the top of the support platform 72. The rack frame 73 is equipped with a rack 53 facing the length direction of the slide rail 3. The rack 53 is connected to the corresponding connecting plate 41. A rotating seat 35 is provided on the top surface of each end of the slide rail 3. The two rotating seats 35 at each end are provided with a rotating shaft 31 perpendicular to the rack 53. The rotating shaft 31 is horizontally arranged, and one end of the rotating shaft 31 is rotatably matched with one of the rotating seats 35, the other end of the rotating shaft 31 is passed through another rotating seat 35, and the rotating shaft 31 is driven by two drive motors 32 respectively arranged on the outside of the slide rail 3. The drive motor 32 is fixedly arranged, and a gear 33 is coaxially provided on the rotating shaft 31 for engaging with the rack 53. Accordingly, the drive motor 32 can adopt a high-precision servo motor to achieve synchronous rotation of the two drive motors 32, and adopts gear rack transmission, which has higher transmission efficiency and better stability, so that the first scraper 4 and the second scraper 8 can operate stably and ensure their scraping effect.

[0035] Example 3 As a further implementation of the above embodiments 1 and 2, Figure 8As shown, upper side plates 21 are perpendicularly mounted on either side of the top surface of the first filter plate 2. The upper side plates 21 are arranged in the longitudinal direction of the first filter plate 2. An end plate 22 is disposed between the ends of the two upper side plates 21. The ends of the end plates 22 are pivotally connected to the corresponding upper side plates 21. Torsion springs 23 are provided at the pivotal connections. When the torsion springs 23 are in their natural state, the end plates 22 are perpendicular to the first filter plate 2, and the lower ends of the end plates 22 abut against the top surface of the first filter plate 2. The arrangement of the upper side plates 21 and the end plates 22 blocks the paint on the first filter plate 2, preventing it from flowing out of both sides of the first filter plate 2. The end plates 22 prevent excessive paint input from causing some unfiltered paint to flow directly from the lower end of the first filter plate 2 to the second filter plate 7. Simultaneously, the first scraper 4 abuts the end plates 22, causing it to rotate, allowing the first scraper 4 to enter the upper portion of the first filter plate 2. After scraping, the end plates 22, under the action of the torsion springs 23, continue to block the lower end of the first filter plate 2, further ensuring filtration efficiency.

[0036] Specifically, such as Figure 4 and Figure 9 As shown, strip plates 77 are vertically provided at both ends of the second filter plate 7, and the strip plates 77 are arranged in the width direction of the second filter plate 7; L-shaped plates 78 are arranged in the length direction thereof on both sides of the second filter plate 7, and the transverse portion of the L-shaped plate 78 is arranged horizontally and support plates 79 are provided on both sides. A telescopic rod 791 facing the width direction of the second filter plate 7 is provided on the support plate 79, and the telescopic rod 791 slides through the side surface of the second filter plate 7, and a spring 792 is sleeved on the telescopic rod 791. The spring 792 is connected between the support plate 79 and the side surface of the second filter plate 7. When the spring 792 is in a natural state, the vertical portion of the L-shaped plate 78 abuts against the side surface of the second filter plate 7 Then, a top plate 81 is provided on the opposite side of the two second scrapers 8, and the edge of the top plate 81 is spaced a preset distance from the lower end of the second scraper 8. During filtering, the arrangement of the strip plate 77 and the L-shaped plate 78 can effectively prevent the paint from flowing out of the second filter plate 7; during scraping, when the two second scrapers 8 scrape from the middle to both sides, the top plate 81 on the second scraper 8 will first press against the vertical part of the L-shaped plate, and make the two L-shaped plates separate back to back, the spring 792 is stretched, and the vertical part of the L-shaped plate is separated from the side of the second filter plate 7. At this time, the screened material scraped by the second scraper 8 falls between the vertical part of the L-shaped plate and the side of the second filter plate 7 into the second receiving hopper 9 for collection.

[0037] Specifically, such as Figure 6 As shown, the second scraper 8 is located between the two strip plates 77, and a strip hole 82 is opened on the strip plate 77. Both ends of the two second scrapers 8 are connected with a transverse plate 83, and the transverse plate 83 is arranged in the length direction of the slide rail 1. The other end of the transverse plate 83 is rotatably connected to the other end of the corresponding matching rod 52.

[0038] Preferably, Figure 1 and Figure 2As shown, lower side plates 25 are vertically provided on both sides of the bottom surface of the first filter plate 2. The lower side plates 25 are arranged in the length direction of the first filter plate 2. The lower side plates 25 can guide the filtered paint to ensure that it falls onto the second filter plate 2.

[0039] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application.

Claims

1. A radiation cooling paint filtering device, characterized in that: include: A mounting plate (1) is arranged horizontally and movable in a vertical direction; Two pairs of first filter plates (2), one end of which is rotatably connected to two sides of the mounting plate (1); Two slide rails (3) are arranged horizontally and perpendicular to the rotation axis of the first filter plate (2) and are respectively located on both sides of the first filter plate (2), and the other end of the first filter plate (2) is movably engaged with the slide rails (3); Two pairs of first scrapers (4) are arranged horizontally and in the length direction of the slide rail (3) and are respectively located on both sides of the mounting plate (1). The two first scrapers (4) are arranged to move synchronously in opposite directions along the slide rail (3). The length of the first scraper (4) is adapted to the length of the first filter plate (2). One end of the first scraper (4) is used to scrape off the screen material of the first filter plate (2); Two pairs of movable plates (5) are respectively arranged parallel to the bottom of the first scraper (4) and move synchronously with the corresponding scraper (4); a channel for the first filter plate (2) to enter is formed between the movable plates (5) and the corresponding first scraper (4); Two first receiving hoppers (6) are detachably provided at one end of the corresponding movable plate (5), the opening of the receiving hopper (6) is vertically upward, one end of the first scraper (4) is located above the opening of the receiving hopper (6), and the receiving hopper (6) is used to collect the screen material scraped by the first scraper (4); The second filter plate (7) is horizontally arranged below the first filter plate (2) and arranged in the length direction of the slide rail (3). The second filter plate (7) is arranged to move back and forth along its own width direction. The mesh number of the second filter plate (7) is higher than that of the first filter plate (2); A pair of second scrapers (8) are vertically mounted on the upper surface of the second filter plate (7) and face the length direction of the slide rail (3); when the two first scrapers (4) move toward each other, the two second scrapers (8) are synchronously separated in opposite directions; when the two first scrapers (4) move away from each other, the two second scrapers (8) are synchronously moved toward each other; the lower end of the second scraper (8) is used to scrape off the screen material of the second filter plate (7); Two second receiving hoppers (9) are detachably arranged on both sides below the second filter plate (7) and are used to collect the screen material scraped off by the second scraper (8).

2. The radiation cooling paint filtering device according to claim 1, characterized in that: The other end of the first scraper (4) is connected to the other end of the corresponding movable plate (5) through a connecting plate (41), and the bottom surface of the movable plate (5) is vertically provided with a mounting column (51); the lower end of the mounting column (51) is rotatably connected to one end of two matching rods (52), and the two corresponding rotation axes are arranged in an array along the width direction of the second filter plate (7) and are vertically arranged; the other ends of the two matching rods (52) are respectively rotatably connected to the end of the second scraper (8), and the two corresponding rotation axes are vertically arranged.

3. The radiation cooling paint filtering device according to claim 2, characterized in that: The upper ends of the two second scrapers (4) are arranged in an inclined surface, and the upper ends of the two second scrapers (4) are used to form a drainage top with a triangular structure and an upward-facing top angle.

4. The radiation cooling paint filtering device according to claim 2, characterized in that: A base (71) is provided below the second filter plate (7), and a pair of support platforms (72) are vertically provided on the base (71). The two ends of the slide rail (3) are respectively fixedly connected to the corresponding support platforms (72). A rack frame (73) is provided on the top of the support platform (72). A rack (53) facing the length direction of the slide rail (3) is matched in the rack frame (73). The rack (53) is connected to the corresponding connecting plate (41). A rotating shaft (31) perpendicular to the rack (53) is provided above the two ends of the slide rail (3). The rotating shaft (31) is horizontally arranged and driven by two driving motors (32) respectively arranged on the outside of the slide rail (3). A gear (33) is coaxially provided on the rotating shaft (31) for engaging with the rack (53).

5. The radiation cooling paint filtering device according to claim 4, characterized in that: Two slide bars (75) are fixedly mounted above the base (71) via support bars (74). The slide bars (75) face the width direction of the second filter plate (7) and are located at both ends of the second filter plate (7). Slide bars (76) are provided at both ends of the second filter plate (7), and the slide bars (76) are respectively slidably mounted on the corresponding slide bars (75).

6. The radiation cooling paint filtering device according to claim 1, characterized in that: A linear mechanism (11) is provided above the mounting plate (1) for driving the mounting plate (1) to move in a vertical direction.

7. The radiation cooling paint filtering device according to claim 1, characterized in that: Upper side plates (21) are vertically provided on both sides of the top surface of the first filter plate (2). The upper side plates (21) are arranged toward the length direction of the first filter plate (2). A first end plate (22) is provided between one ends of the two upper side plates (21). Both ends of the first end plate (22) are rotatably connected to the corresponding upper side plates (21). A torsion spring (23) is provided at the rotatable connection. When the torsion spring (23) is in a natural state, the first end plate (22) is perpendicular to the first filter plate (2), and the lower end of the first end plate (22) abuts against the top surface of the first filter plate (2).

8. The radiation cooling paint filtering device according to claim 7, characterized in that: Lower side plates (21) are vertically provided on both sides of the bottom surface of the first filter plate (2), and the lower side plates (21) are arranged toward the length direction of the first filter plate (2).

9. A radiation cooling paint filtering device according to claim 7, wherein strip plates (77) are vertically provided at both ends of the second filter plate (7), and the strip plates (77) are arranged in the width direction of the second filter plate (7); L-shaped plates (78) are provided on both sides of the second filter plate (7) in the length direction thereof, and the transverse portion of the L-shaped plate (78) is arranged horizontally and support plates (79) are provided on both sides, and a telescopic rod (791) is provided on the support plate (79) in the width direction of the second filter plate (7). The retractable rod (791) is slidably provided on the side of the second filter plate (7), and a spring (792) is sleeved on the retractable rod (791). The spring (792) is connected between the support plate (79) and the side of the second filter plate (7). When the spring (792) is in a natural state, the vertical portion of the L-shaped plate (78) abuts against the side of the second filter plate (7), and a top plate (81) is provided on the opposite side of the two second scrapers (8). The edge of the top plate (81) is spaced a preset distance from the lower end of the second scraper (8).