A quick-release stainless steel bag filter for insulating paint production

Abstract

This invention relates to the field of filtration technology, specifically to a quick-release stainless steel bag filter for the production of insulating varnish. The filter includes a housing, filter bags, and a housing cover, with a settling chamber provided in the housing. It also includes a moving component that moves the filter bags into the settling chamber driven by the opening and closing displacement of the housing cover, a heat insulation plate snapped onto the housing cover, and a replacement cover that closes the settling chamber. The moving component is located on the upper inner edge of the housing. The filter bags are connected to the heat insulation plate. The housing cover includes a pushing component that pushes the heat insulation plate snapped onto the housing cover towards the moving component. The replacement cover receives the heat insulation plate after it has been moved by the moving component. By using a combination of the pushing component and the moving component to move the filter bags and filter screens that need replacement into the settling chamber, the problem of having to wait for the filter bags and filter screens to cool down and for the varnish in the filter bags to be completely filtered before replacement, due to the high temperature of the silicone varnish itself, is avoided.

Description

Technical Field

[0001] This invention relates to the field of filter technology, and more specifically to a quick-release stainless steel bag filter for the production of insulating varnish. Background Technology

[0002] Stainless steel bag filters mainly consist of a filter container, a support basket, and filter bags. The shell is mostly made of stainless steel (304 / 316L) or carbon steel to withstand high pressure and high temperature environments. Liquid enters the filter container through the inlet, passes through the support basket and filter bags, and solid particles in the liquid are trapped by the filter bags. The clean liquid flows out through the surface of the filter bags, thus completing the filtration of the liquid.

[0003] As usage time increases, impurities gradually accumulate on the surface of the filter bag, leading to a decrease in filtration efficiency. At this point, the filter bag needs to be replaced to restore the filtration effect. Since frequent replacement of the filter bag weakens the filtration efficiency, existing technology has adopted a quick-opening mechanism on the filter machine. By setting a locking ring and a spring balance mechanism, the top cover of the filter machine can be quickly opened and closed simply by turning the handle, enabling quick replacement of the filter bag.

[0004] However, when filtering silicone paint, due to its poor fluidity, a high temperature of 80 to 100 degrees Celsius needs to be maintained during filtration to ensure its fluidity. Because of the high temperature during filtration, the temperature of the filter bag and filter screen will rise during the filtration process. In this case, to replace the filter bag, the filtration of silicone paint must be stopped first, and then the inside of the filter machine must be cooled through the jacket. Finally, the filter bag must be replaced manually. Moreover, because the flow rate of silicone paint is slow, in order to avoid waste, the filter bag and filter screen must be cooled to a certain temperature and the silicone paint in the filter bag must be drained before the filter bag can be removed for replacement. This method will affect the efficiency of silicone paint production and slow down its production speed when filtering a large amount of silicone paint.

[0005] Therefore, a quick-release stainless steel bag filter for the production of insulating varnish is proposed. Summary of the Invention

[0006] The purpose of this invention is to provide a quick-release stainless steel bag filter for the production of insulating varnish. By setting up a settling chamber and utilizing a pushing component and a moving component, when replacing the silicone varnish filter bag, it is not necessary to directly contact the used filter bag. The filter bag can be directly moved to the settling chamber for settling, allowing it to cool slowly and complete the filtration of residual liquid. This solves the problem that when replacing filter bags, it is necessary to wait for the filter bag and filter screen to cool to a certain temperature and for the silicone varnish inside the filter bag to drain completely before the filter bag can be removed for replacement. This solution allows for direct replacement of the filter bag, significantly improving the efficiency of filter bag replacement.

[0007] To achieve the above-mentioned technical objectives, the present invention provides the following technical solution: A quick-release stainless steel bag filter for insulating varnish production includes a housing, a cover, a filter screen, a filter bag, a moving assembly, a replacement cover, and a heat insulation plate. The cover is movably connected to the upper end of the housing, and a sealing plate is installed at the lower end of the cover. A mounting groove is formed on one side of the sealing plate, and a pushing assembly is installed in the mounting groove. The filter screen is installed inside the housing, and the filter bag is installed inside the filter screen. The moving assembly is connected to the upper end of the inner side of the housing. A settling chamber is formed on one side of the housing, and the replacement cover is installed at the upper end of the settling chamber. The heat insulation plate is installed at the upper end of the filter screen, and a mounting block is connected to the outer side of the heat insulation plate. When the cover moves upward, it drives the moving assembly to move the filter screen and filter bag into the settling chamber. When it moves downward, it resets the moving assembly and pulls the replacement cover upward to move the filter screen and filter bag out of the settling chamber.

[0008] Preferably, the pushing assembly includes a gear, a screw, and a rack. The screw is fixedly installed inside the housing and passes through the enclosed plate. The gear is movably connected to the outside of the screw and meshes with it. The rack is installed inside the mounting groove, and the pushing block is installed at one end of the rack.

[0009] In the above solution, the heat insulation plate and filter screen / bag are rotated by gear transmission when the cover is lowered, so that the heat insulation plate falls on the moving component when the cover is closed. This solution can avoid direct hand contact with the inside of the filter machine when installing the filter screen and filter bag, thus avoiding the risk of burns.

[0010] Preferably, a fixing buckle is installed at the upper end of the screw, and a fixing groove is opened at the upper end of the cover, the fixing groove cooperating with the fixing buckle.

[0011] In the above solution, when the cover is opened to the top, it can be secured to the upper end of the screw by a fixing buckle, thereby facilitating the subsequent installation of the filter bag and filter screen.

[0012] Preferably, the moving component includes a moving plate, a worm gear, a transmission wheel, a second screw, and a sliding block. The worm gear is installed on the side of the closed plate. The moving plate is fixedly installed inside the outer shell. The second screw is installed at the lower end of the moving plate. The transmission wheel is installed at one end of the second screw. The worm gear is installed at the lower end of the moving plate and meshes with the worm gear. A sliding groove is formed on the surface of the moving plate. The sliding block is slidably installed in the sliding groove. The bottom end of the sliding block cooperates with the second screw.

[0013] In the above scheme, when the sealing plate moves upward with the shell cover, the worm gears on both sides of the sealing plate will drive the worm wheel to rotate, thereby causing the sliding block to slide, and thus pushing the unreplaced filter screen and filter bag to the settling chamber. With this scheme, when the filter screen and filter bag are replaced, they can be brought into the settling chamber for thorough filtration and sufficient time to cool slowly. When the sealing plate closes with the shell cover, it will drive the sliding block back to the initial position. At this time, the heat insulation plate will push the filter bag and filter screen onto the sliding block by the push block.

[0014] Preferably, the outer shell surface has an inlet and an outlet, the filter screen is a retractable filter screen, the upper outer side of the filter screen has a mating opening, the mating opening mates with the inlet, and magnetic rings are respectively installed on the adjacent surfaces of the mating opening and the inlet.

[0015] In the above scheme, when the shell cover is completely closed, the magnetic rings on the mating port and the feed port attract each other, allowing the material to completely enter the filter screen and filter bag, preventing leakage from the middle.

[0016] Preferably, the upper end of the settling chamber is provided with a replacement port, the replacement cover is installed on the replacement port, the lower end of the replacement cover is provided with an arc-shaped magnetic block, and the upper end of the replacement cover is provided with a handle.

[0017] In the above scheme, when the sliding block drives the heat insulation plate into the settling chamber, the magnetic block on the replacement cover will attract the heat insulation plate. At this time, when the sliding block returns to the initial position, it will not drive the heat insulation plate to move. At the same time, when it is necessary to remove the used filter screen and filter bag, the handle can be pulled directly to remove them.

[0018] Preferably, the lower end of the settling chamber is provided with an inclined surface, which is arc-shaped and matches the lower end of the filter screen.

[0019] In the above scheme, when the sliding block moves the filter screen towards the settling chamber, the filter screen slowly contracts along the inclined plane, squeezing the internal filter bag and accelerating the filtration of the filtrate.

[0020] Preferably, one end of the sliding block has an arc-shaped groove, and the higher end of the arc-shaped groove is in close contact with the closed plate in the initial position.

[0021] In the above solution, when the heat insulation plate falls from the shell cover onto the sliding block, the arc groove is used to make it fall onto the sliding block in a fixed posture, while the magnetic ring's attraction to the filter screen and the arc groove are used to fix the filter screen in place.

[0022] The beneficial effects of this invention are as follows: 1. When replacing filter bags, this invention uses a combination of a pushing component and a moving component to move the filter bags and filter screens to be replaced into the settling chamber. This avoids the problem that due to the high temperature of the silicone paint itself, it is necessary to wait for the temperature of the filter bags and filter screens to drop and for the paint liquid in the filter bags to be completely filtered before replacement. This improves the production efficiency of silicone paint. At the same time, by inserting the filter screens and filter bags into the filter machine by clipping them onto the shell cover, the problem of easy burns from direct contact with the filter screens and filter bags can be avoided. Furthermore, by moving the filter screens and filter bags to be replaced into the settling chamber and removing them before the next replacement, it is ensured that the filter bags have enough time to completely filter out the filtrate inside. Since the filter screens and filter bags do not come into direct contact with the filtrate, their temperature will gradually decrease to a range where they can be removed.

[0023] 2. This invention, by setting up a pushing component and a moving component, installs the filter screen and filter bag on the housing cover. The downward movement of the housing cover drives the pushing component to push the filter screen and filter bag until the housing cover moves to the bottom, pushing them onto the moving component. When the filter bag needs to be replaced, the upward movement of the housing cover drives the moving component to move the filter screen and filter bag into the settling chamber. This eliminates the need for direct contact with the filter screen and filter bag when replacing the filter bag, thus avoiding the problem of burns caused by direct contact with the filter screen and filter bag.

[0024] 3. By setting up a settling chamber and a replacement cover, the filter screen and filter bag that need to be replaced are moved to the settling chamber. When the filter bag needs to be replaced next time, it is taken out and allowed to cool down gradually in the settling chamber and be fully filtered. This avoids the problem that the filter bag and filter screen have to be cooled down and the silicone paint in the filter bag can be completely filtered out due to the high temperature of the paint itself, thus speeding up the production speed of silicone paint. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] The above and other aspects of the invention will now be described by way of example only, with reference to the accompanying drawings, in which: Figure 1 This is an isometric view of the present invention; Figure 2 This is a cross-sectional axial view of the present invention; Figure 3 This is a bottom view of the shell cover of the present invention; Figure 4 This is the present invention. Figure 3 Enlarged view of section A in the middle; Figure 5 This is an isometric view of the outer casing of the present invention; Figure 6 This is the present invention. Figure 5 Enlarged view of section B; Figure 7 This is a top view of the outer casing of the present invention; Figure 8 This is a side view of the replacement cover of the present invention; Figure 9 This is a schematic diagram of the heat insulation board structure of the present invention.

[0027] In the diagram: 1. Outer shell; 11. Settling chamber; 111. Replacement port; 112. Inclined surface; 12. Inlet; 13. Outlet; 2. Shell cover; 21. Sealing plate; 22. Mounting groove; 23. Pushing assembly; 231. Gear; 232. Screw one; 233. Rack; 234. Pushing block; 235. Fixing buckle; 24. Fixing groove; 25. Worm gear; 3. Filter screen; 31. Mating port; 32. Magnetic ring; 4. Filter bag; 5. Moving assembly; 51. Moving plate; 511. Slide groove; 52. Worm gear; 53. Transmission wheel; 54. Screw two; 55. Sliding block; 551. Arc groove; 6. Replacement cover; 61. Magnetic block; 62. Handle; 7. Heat insulation plate; 71. Mounting block. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figures 1 to 9A quick-release stainless steel bag filter for insulating varnish production includes a housing 1, a cover 2, a filter screen 3, a filter bag 4, a moving assembly 5, a replacement cover 6, and a heat insulation plate 7. The cover 2 is movably connected to the upper end of the housing 1, and a sealing plate 21 is installed at the lower end of the cover 2. The sealing plate 21 is positioned directly opposite the point where the silicone varnish enters the filter. When the cover is pulled upward, residual silicone varnish in the pipe can be prevented from entering the filter. An installation groove 22 is provided on the inner side of the sealing plate 21, and a pushing assembly 23 is installed in the installation groove 22. When the cover 2 is closed downward, the pushing assembly 23 moves along the inner side of the installation groove 22. The filter screen 3 is installed inside the housing 1, and the filter bag 4 is installed inside the filter screen 3. The moving assembly 5 is connected to the upper end of the inner side of the housing 1 and cooperates with the sealing plate 21. When the sealing plate 21 moves, it drives the moving assembly 5 to move. A settling chamber 1 is provided on one side of the housing 1. 1. The replacement cover 6 is movably installed on the upper end of the settling chamber 11. The heat insulation plate 7 is installed on the upper end of the filter screen 3 and is movably connected to the filter screen 3. The outer side of the heat insulation plate 7 is connected to the mounting block 71. The filter screen 3 and the filter bag 4 are movably installed in the mounting block 71. When the shell cover 2 moves upward, the driving moving component 5 drives the filter screen 3 and the filter bag 4 into the settling chamber 11. In the subsequent process, the filter screen 3 and the filter bag 4 are placed in the settling chamber for cooling and filtration until the filter bag 4 needs to be replaced next time. Then, the replacement cover 6 is removed. When the shell cover 2 moves downward, the driving moving component 5 is reset. When the shell cover 2 is fully closed, the driving moving component 5 is reset. At this time, the pushing component 23 pushes the newly replaced heat insulation plate 7 onto the moving component. The above solution completely avoids the problem that when replacing the filter bag 4 and the filter screen 3, it is necessary to wait for the filter bag 4 and the filter screen 3 to cool down completely and for the silicone paint in them to be completely filtered before replacement.

[0030] Considering that the silicone varnish needs to maintain a high temperature of 80-100℃, the heat insulation plate 7 is made of polytetrafluoroethylene or alumina ceramic, with a thermal conductivity of less than 0.25 W / (m·K) to ensure that the upper shell and moving mechanism are not affected by high temperatures. The main frame of the retractable filter 3 is made of stainless steel, and the telescopic joint is made of fluororubber bellows structure with a high temperature resistance of over 150℃. All dynamic and static sealing surfaces of the outer shell 1 and the static cavity 11 are equipped with high temperature resistant polytetrafluoroethylene-propylene coated O-rings.

[0031] As one embodiment of the present invention, refer to Figure 1 , Figure 2 and Figure 9The pushing component 23 includes a gear 231, a screw 232, and a rack 233. The screw 232 is fixedly installed inside the housing 1 and passes through the closed plate 21. The gear 231 is movably connected to the outside of the screw 232, and the inside of the gear 231 is engaged with the thread on the screw 232. The rack 233 is installed inside the mounting groove 22 and is in contact with the inside of the mounting groove 22. The pushing block 234 is installed at one end of the rack 233 and is fixedly connected to the rack 233. Because the inner side of gear 231 is threaded with the surface of screw 232, during the descent of cover 2, screw 232 will drive gear 231 to rotate, thereby driving rack 233 to rotate along the inner wall of mounting groove 22. This drives push block 234 to push heat insulation plate 7 installed in mounting groove 22 and filter bag 4 and filter screen 3 installed on heat insulation plate 7, causing them to rotate along the direction of mounting groove 22. When cover 2 is fully closed, filter bag 4 and filter screen 3 fall onto moving component 5. At this time, heat insulation plate 7 and filter screen 3 are completely on moving component 5. This solution allows filter bag 4 and filter screen 3 to be installed on heat insulation plate 7 and then on cover 2, and then driven by cover 2 to be installed inside the filter machine. This avoids directly reaching into the filter machine to replace filter bag 4, reducing the risk of burns to workers.

[0032] As one embodiment of the present invention, refer to Figure 3 , Figure 4 A retaining buckle 235 is installed on the upper end of the screw 232, and a retaining groove 24 is opened on the upper end of the cover 2. The retaining groove 24 cooperates with the retaining buckle 235. When the cover 2 is opened to the top, the retaining buckle 235 can be locked in the retaining groove 24. When the staff replaces the filter bag 4 and the filter screen 3, they do not need to hold the cover 2, which facilitates the subsequent installation of the filter bag 4 and the filter screen 3.

[0033] As one embodiment of the present invention, refer to Figure 5 , Figure 6The moving assembly 5 includes a moving plate 51, a worm gear 52, a transmission wheel 53, a second screw 54, and a sliding block 55. A worm gear 25 is mounted on the side of the sealing plate 21. The moving plate 51 is fixedly installed inside the outer casing 1. The second screw 54 is installed below the moving plate 51 and tangent to the lower surface of the moving plate 21. The transmission wheel 53 is installed at the end of the second screw 54 near the sealing plate. The worm gear 52 is installed between the lower end of the moving plate 51 and the second screw 54, and meshes with the worm gear 25. A groove 511 is formed on the surface of the moving plate 51, extending to the stationary cavity 11. The sliding block 55 is slidably installed in the groove 511, and its bottom end engages with the second screw 54. When the sealing plate 21 moves upward with the casing 2, the worm gears 55 on both sides of the sealing plate 21 drive the worm gear 55. 2. Rotation drives the transmission wheel 53 to rotate. Since the bottom end of the sliding block 55 is engaged with the screw 2 54, the screw 2 54 will drive the sliding block 55 to slide, thereby pushing the unreplaced filter screen 3, filter bag 4 and heat insulation plate 7 into the settling chamber 11 for settling. At this time, the unreplaced filter screen 3, filter bag 4 and heat insulation plate 7 are slowly cooled in the settling chamber 11, while filtering the residual filtrate in the filter bag 4. When the sealing plate 21 closes with the shell cover 2, it will drive the sliding block 55 back to the initial position in the opposite direction. At this time, the heat insulation plate 7 drives the filter bag 4 and filter screen 3 to fall onto the sliding block 55 by the push block 234. This solution avoids the problem that when replacing the filter bag 4 and filter screen 3, it is necessary to wait for the filter bag 4 and filter screen 3 to cool down completely and for the filtrate in them to be completely filtered before replacement.

[0034] As one embodiment of the present invention, refer to Figure 2 The outer shell 1 has an inlet 12 and an outlet 13 on its surface. The filter screen 3 is a retractable filter screen. The upper outer side of the filter screen 3 has a mating opening 31. When the shell cover 2 is completely closed, the mating opening 31 and the inlet 12 are mated. Magnetic rings 32 are installed on the adjacent surfaces of the mating opening 31 and the inlet 12. When the shell cover 2 is completely closed, the mating opening 31 and the magnetic rings 32 on the inlet 12 attract each other. At this time, the heat insulation plate 7, the filter screen 3, and the filter bag 4 fall onto the moving component 5, so that the filter screen 3 and the filter bag 4 are completely fixed, allowing the material to completely enter the filter screen 3 and the filter bag 4 and preventing leakage from the middle.

[0035] As one embodiment of the present invention, refer to Figure 2 , Figure 8The settling chamber 11 has a replacement port 111 at its upper end. The replacement cover 6 is movably installed on the replacement port 111. An arc-shaped magnetic block 61 is fixedly installed at the lower end of the replacement cover 6, and the curvature of the magnetic block 61 is the same as that of the mounting block 71 on the heat insulation plate 7. A handle 62 is installed at the upper end of the replacement cover 6. When the sliding block 55 drives the heat insulation plate 7 into the settling chamber 11, the magnetic block 61 on the replacement cover 6 will attract the heat insulation plate 7. At this time, when the sliding block 55 returns to the initial position, it will not drive the heat insulation plate 7 to move. At the same time, when it is necessary to remove the used filter screen 3 and filter bag 4, the handle 62 can be pulled directly to remove them. With this solution, the heat insulation plate 7, filter screen 3, and filter bag 4 that need to be replaced can be removed without direct contact with the filter screen 3 and filter bag 4 by hand. At the same time, it ensures that the filter screen 3 and filter bag 4 completely filter out the residual filtrate in the filter bag 4 after a long period of settling and the temperature drops to a sufficient level.

[0036] As one embodiment of the present invention, refer to Figure 2 , Figure 6 and Figure 7 The lower end of the settling chamber 11 is provided with an inclined surface 112, which is arc-shaped and cooperates with the lower end of the filter screen 3. When the sliding block 55 drives the filter screen 3 to move along the inclined surface 112 into the settling chamber 11, the filter screen 3 will slowly contract along the inclined surface 112, squeezing the filter bag 4 inside and the residual filtrate therein, thus accelerating the filtration of the filtrate. The inclination angle of the inclined surface 112 at the lower end of the settling chamber 11 is set in the range of 15° to 30°, and its surface roughness is not greater than Ra0.8 to reduce sliding friction. The bottom of the filter screen 3 is a flexible metal woven structure, and its maximum compressible stroke accounts for 20% to 30% of the total length. When the sliding block 55 advances in the horizontal direction, the height at which the lower end of the filter screen 3 is raised along the inclined surface 112 is set to 50 to 100 mm. This height difference, by squeezing the bottom end of the filter bag 4, accelerates the filtration of the residual liquid under the action of gravity due to the reduction of its internal volume.

[0037] As one embodiment of the present invention, refer to Figure 2 , Figure 5 and Figure 6 The sliding block 55 has an arc-shaped groove 551 at one end. When the arc-shaped groove 551 is fully closed, the higher end of the arc-shaped groove 551 is in close contact with the sealing plate 21. When the heat insulation plate 7 falls from the shell cover 2 onto the sliding block 55, the arc-shaped groove 551 is used to make it fall onto the sliding block 55 in a fixed posture. At the same time, the magnetic ring 32 attracts the filter screen 3 and the arc-shaped groove 551 holds the filter screen in place, so that it maintains a stable posture during filtration.

[0038] Working principle: Refer to Figure 1 and Figure 3Before the equipment starts operating, first open the cover 2, install the filter screen 3 and filter bag 4 on the heat insulation plate 7, and then insert the heat insulation plate 7 with the filter bag 4 installed into the mounting groove 22 at the bottom of the cover 2. Close the cover 2 downwards. During the descent of the cover 2, its vertical displacement will drive the pushing component 23 (including the gear 231, screw and rack 233 mechanism) in the mounting groove 22 to operate, causing the heat insulation plate 7 to rotate. When the cover 2 is fully closed, the heat insulation plate 7 flips over and falls smoothly onto the moving component 5 inside the filter, so that the filter bag 4 enters the filtration position.

[0039] Reference Figure 2 The equipment enters normal filtration mode. High-temperature silicone insulating varnish flows in from the inlet 12 on the side of the outer shell 1. Because the mating port 31 on the top of the filter screen 3 and the inlet 12 achieve a tight connection and seal through the mutual attraction of the magnetic ring 32 when the shell cover 2 is closed, the flowing insulating varnish fluid will not leak and will be precisely guided into the filter bag 4. Under the action of its own gravity and system pressure, the insulating varnish permeates outward through the filter bag 4 and the filter screen 3, impurities are trapped inside the filter bag 4, and the filtered pure varnish liquid collects at the bottom of the outer shell 1 and finally flows out of the equipment from the outlet 13, completing the entire impurity reduction and purification process.

[0040] Reference Figure 2 and Figure 6 When impurities accumulate on the surface of the filter bag 4, causing a decrease in filtration efficiency and requiring replacement, the operator simply pulls the cover 2 upwards. The upward opening displacement of the cover 2 automatically drives the moving component 5 on the upper edge of the inner shell 1 through a transmission structure such as gear 231, rack 233, or connecting rod. The sliding block 55 on the moving component 5 pushes the heat insulation plate 7, which carries the high-temperature old filter bag 4, to move it horizontally towards the side settling chamber 11. This linkage process allows the operator to completely avoid touching the high-temperature internal components with their hands, avoiding the risk of burns, while simultaneously freeing up space in the cover 2 for the immediate installation of a new filter bag 4.

[0041] Reference Figure 2 and Figure 7 During the process of the used filter bag 4 being pushed into the settling chamber 11, the bottom of the filter screen 3 slides along the arc-shaped inclined surface 112 at the lower end of the settling chamber 11. The height difference of the inclined surface 112 forces the retractable filter screen 3 to slowly contract, thereby physically squeezing the filter bag 4 inside, further squeezing out and filtering the remaining expensive insulating varnish in the filter bag 4, minimizing material waste. After entering the settling chamber 11, the replacement cover 6 at the top automatically attaches to the heat insulation plate 7 using the magnetic block 61 at the lower end. At this time, the old filter bag 4 undergoes safe natural cooling in the independent settling chamber 11. After the temperature drops to a safe range and the residual liquid is completely drained, the operator refers to... Figure 8 Simply pull up the handle 62 on the replacement cover 6 to safely remove the old filter bag 4 along with the heat insulation plate 7.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-release stainless steel bag filter for insulating varnish production, comprising a housing, filter bags, and a cover movably mounted on the housing, characterized in that: The outer shell is equipped with a settling chamber for buffering and draining the filter bags; The filter also includes a moving component that is driven by the opening and closing displacement of the cover to move the filter bag into the settling chamber, and the moving component is arranged on the upper edge of the inner shell; The filter also includes a heat insulation plate snapped onto the housing cover, and the filter bag is connected to the heat insulation plate; The housing cover includes a pushing component that pushes a heat insulation plate snapped onto the housing cover to a moving component; The filter also includes a replacement cover that seals the settling chamber, the replacement cover receiving the heat insulation plate transferred by the moving component; When the cover is opened upwards, the drive moving component moves the heat insulation plate and filter bag into the settling chamber; when the cover is closed downwards, the moving component resets and the push component pushes the replaced heat insulation plate onto the moving component.

2. A quick-release stainless steel bag filter for the production of insulating paint according to claim 1, characterized in that: The pushing assembly includes a gear, a screw, a rack, and a pushing block. The screw is fixedly installed inside the housing and passes through the housing cover. The gear is movably connected to the outside of the screw and the inside of the gear engages with the screw. The rack is installed inside the housing cover, and the pushing block is installed at one end of the rack.

3. A quick-release stainless steel bag filter for insulating varnish production according to claim 2, characterized in that: A fixing buckle is installed at the upper end of the screw, and a fixing groove is opened at the upper end of the cover. The fixing groove cooperates with the fixing buckle to self-lock when the cover is opened.

4. A quick-release stainless steel bag filter for insulating varnish production according to claim 1, characterized in that: The moving component includes a moving plate, a worm gear, a transmission wheel, a second screw, and a sliding block. The moving plate is fixedly installed inside the outer casing. The second screw is installed at the lower end of the moving plate. The transmission wheel is installed on the second screw. The worm gear is installed on the moving plate and is connected to the transmission wheel for transmission.

5. A quick-release stainless steel bag filter for insulating varnish production according to claim 4, characterized in that: A worm gear is installed on the side of the shell cover, and the worm gear meshes with a worm wheel. The sliding block reciprocates along the groove on the surface of the moving plate.

6. A quick-release stainless steel bag filter for insulating varnish production according to claim 1, characterized in that: The upper end of the settling chamber is provided with a replacement port, the replacement cover is installed on the replacement port, the lower end of the replacement cover is provided with an arc-shaped magnetic block, and the upper end of the replacement cover is provided with a handle for manual extraction.

7. A quick-release stainless steel bag filter for insulating varnish production according to claim 1, characterized in that: The lower end of the settling chamber is provided with an inclined surface, which is arc-shaped and cooperates with the lower end of the filter screen to squeeze out residual liquid during the transfer process.

8. A quick-release stainless steel bag filter for insulating varnish production according to claim 4, characterized in that: The sliding block has an arc-shaped groove at one end. When the cover is fully closed, the higher end of the arc-shaped groove is in close contact with the closed structure below the cover to fix the filter bag's posture.

9. A quick-release stainless steel bag filter for insulating varnish production according to claim 1, characterized in that: The outer shell has an inlet and an outlet. The filter bag is covered with a retractable filter screen. The upper outer side of the filter screen has a mating opening that matches the inlet. A magnetic ring is installed inside the inlet.

10. A quick-release stainless steel bag filter for insulating varnish production according to claim 1, characterized in that: An installation block is connected to the outside of the heat insulation plate, and the filter bag is movably installed inside the installation block.

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