Dry-type filtering module with vertically ventilated lower air outlet and sealing structure

Abstract

The invention discloses a dry-type filter module with a vertically ventilated lower air outlet and a sealing structure. The dry-type filter module comprises a sealing plate, a bearing framework, a sliding device, a guide and a sealing edge structure, the multifunctional sealing plate is of an integrated structure defined by a side sealing plate and a front sealing plate, and the lower portion of the sealing plate is integrally connected with the air outlet. The bearing framework is used for bearing the whole dry-type filter module and the dry-type filter box of which the weight is increased after paint absorption; the sliding device is provided with a roller and a roller groove; the guide wheels are mounted in the holes of the side sealing plates, so that accurate positioning in the initial moving-in process of the dry-type filter box is guaranteed, the dry-type filter box is not blocked, and the dry-type filter box is tightly connected with the air inlet dry-type filter module for effective sealing; the sealing edge structure comprises a side surface sealing edge and a front surface sealing edge and is used for dual sealing of the bottom and the dry type filtering module after the dry type filtering box is moved in or positioned; the side sealing edges and the bottom of the dry type filter box are arranged in a partitioned manner to jointly realize the functions of bearing, sliding and sealing; paint mist is prevented from overflowing and polluting a roller groove or unsmooth operation caused by the fact that the roller is stuck with paint is prevented.

Description

Technical Field

[0001] The present invention relates to the field of dry paint mist filtration for automobiles, parts and general industrial spraying equipment, and in particular to a bottom air outlet dry filter module and a sealing structure for top and bottom ventilation. Background Art

[0002] The robot spray booth produces a large amount of overspray paint mist, which needs to be filtered and absorbed by a dry paint mist filter box. The dry paint mist filter box is set in the ventilation channel of the paint mist airflow in the spray booth and must withstand the force of the 3000Pa high-pressure airflow. The dry paint mist filter box will increase its own weight after absorbing paint; the disposable consumables of the dry paint mist filter box need to be replaced regularly and can be moved horizontally; for this purpose, the dry paint mist filter box needs to be loaded, fixed, carried, and moved and slid by a dry filter module with a fixed structure. The dry paint mist filter box is independent or connected to a secondary carrier, and is movably connected to the dry filter module. If there is a movable connection, there will be a gap. If there is a gap, it is necessary to solve the sealing, locking, and pressing of the gap.

[0003] The paint mist airflow in the robot automatic spray room is upward and downward. From the perspective of airflow, as well as the dry paint mist filtration effect and filtration efficiency, airflow resistance and other aspects, the up and down ventilation direction of the dry filter box is the most reasonable.

[0004] The most important and most difficult aspect of dry paint mist filtration technology is solving the sealing problem at the joints, especially for dry filter boxes with top and bottom ventilation, which must be sealed in three axes and able to move horizontally. The dry filter box must have gaps for horizontal movement and both the top and bottom, and must be sealed separately at the top and bottom, locked by pushing forward on the front, and pressed inward on the sides. It is also extremely difficult to achieve sealing while dynamically moving and sliding under load.

[0005] If the gap between the dry filter module and the dry filter box is large, the dry filter box can pass through without difficulty, but the larger the gap, the more difficult it is to seal.

[0006] In the existing technology, a sliding structure suspended from the top is used to support the dry filter box. The upper air inlet is on the windward side of the paint mist, where the amount of paint mist is the largest and air is supplied under positive pressure. Once air leakage occurs, the paint mist will overflow into the workshop, and paint residue will stick to the leaking area, making it difficult to separate and affecting replacement. The bottom of the dry filter box is used to support the entire box, and the bottom of the dry filter box needs to be supported and sealed. Once air leakage occurs, dirty air from the workshop can easily enter the clean circulating air system of the spray room, causing pollution, and destroying the wind balance stability, thereby affecting the product qualification rate.

[0007] In the prior art, the integral dry filter box with upward wind or upward air inlet has an air outlet or air inlet on the top and an air inlet or air outlet on the side. The airflow turns 90 degrees inside the dry filter box instead of being ventilated up and down. The integral dry filter box has a box body plate at the bottom. The box body plate at the bottom is very simple to move and the bottom does not need to be sealed.

[0008] In the existing technology, dry filter boxes with upper and lower ventilation need to be supported by a secondary carrier, such as adding a mobile carrying trolley to the outside of the dry filter box, or adding a metal frame, or adding a metal box and plastic film, or adding a rolling structure to the bottom; the secondary carrier structure is complex and costly, and the secondary sealing connection is added, making sealing more difficult.

[0009] The independent upper and lower ventilation integral dry filter box without secondary carrier is carried at the bottom, and the main body of the integral dry filter box can realize both load-bearing, sliding and sealing, which is a blank in the existing technology.

[0010] The independent integral dry filter box is carried at the bottom, which has many technical difficulties.

[0011] 1. The dry filter box is supported at the bottom, and the seal at the bottom of the dry filter box is also at the bottom. The dry filter box must also be connected to the bottom for sliding. The two loads need to be in contact, and the seals also need to be in contact. Moreover, the smoothness of the movement of the dry filter box in and out cannot be affected by the seal.

[0012] 2. If a sliding structure is used at the bottom, gaps will be created, and air will leak through the gaps.

[0013] 3. The dry filter box increases in weight by about 200-300 kg after absorbing paint. The heavy weight also creates greater sliding resistance.

[0014] 4. The overall dry filter box with upper and lower ventilation has large dimensions and adopts a wooden frame skeleton and a paper outer box body. The cardboard is easy to deform. If the wooden frame is locally compressed, it is also easy to deform. Large deformation will affect the sealing effect.

[0015] 5. The upper air inlet dry filter module and the lower air outlet dry filter module are slidably connected to the upper air inlet and lower air outlet of the dry filter box respectively. The center lines of the upper, lower, left, right, front and back can be completely aligned without deviation, otherwise it will affect the accuracy of the connection points of the dry filter box and thus affect the overlap sealing effect.

[0016] To this end, it is necessary to develop and design an independent integral dry filter box with upper and lower ventilation, and solve the problems of load-bearing, moving sliding, and sealing to achieve a good sealing effect. It is also necessary to have a technical solution with low investment cost and easy replacement. Summary of the Invention

[0017] The purpose of the present invention is to provide a bottom-outlet dry filter module and sealing structure with vertical ventilation to address the difficulties and pain points of the prior art. A solution for a bottom-outlet dry filter module and sealing structure with vertical ventilation is proposed. The module, in conjunction with a top-outlet dry filter box, a top-inlet dry filter module, a frame sealing structure, an automatic locking sealing device, and a side automatic locking structure, achieves load-bearing sliding and sealing, with excellent sealing performance, no paint mist adhesion, and convenient in-and-out operation and replacement, saving investment costs.

[0018] The above technical objectives of the present invention are achieved through the following technical solutions: The lower air outlet dry filter module includes: a sealing plate, a bearing frame, a sliding device, a guide, a sealing edge structure, and a bag filter frame; The sealing plate includes a side sealing plate and a front sealing plate; The side sealing plates and the front sealing plates are connected together to form a surrounding body of the paint mist enclosed ventilation duct, and are firmly connected after precise positioning; The sealing edge structure includes a side sealing edge and a front sealing edge; The side sealing edge is arranged in the sealing area and overlaps and seals with the elastic sealing body of the dry filter box; The sliding device is arranged in the load-bearing sliding area to carry and drive the dry filter box to slide.

[0019] The lower air outlet dry filter module supports the dry filter box from below, and the upper air inlet dry filter module limits the dry filter box from above, aligning with the center of the dry filter box to ensure that the dry filter box can move in and out and slide smoothly, and the connection is tightly sealed.

[0020] It should be noted that: The side sealing edge and the front sealing edge are respectively overlapped and sealed with the elastic sealing body of the dry filter box, and the sliding device carries and drives the dry filter box to slide; the dry filter box can simultaneously achieve the dual functions of sealing and bearing sliding.

[0021] The dry filter box is respectively provided with the upper air inlet dry filter module and the lower air outlet dry filter module. A set of dry filter modules can be equipped with one or two independent and integral dry filter boxes facing each other. The two dry filter boxes are respectively pressed and connected with the frame sealing structure. The dry filter box is overlapped with the sealing structure and the frame sealing structure and is tightly sealed, while ensuring that the dry filter box moves forward and backward smoothly.

[0022] Preferably, The side sealing plate carries the sliding device; The sliding device includes a roller groove and a roller; The roller carries and drives the dry filter box to slide; The load-bearing frame supports the body of the side cover panels and the front cover panels as well as all structures supported thereon.

[0023] The load-bearing frame is designed with a guide edge that is narrow inward and widens outward at the inlet and outlet ends of the dry filter box.

[0024] It should be noted that The side sealing plate and the sliding device, as well as all structural parts supported by the side sealing plate, are designed as a modular module as a whole, with good overall strength, small error, uniform force, easy processing and manufacturing, and simplified on-site installation.

[0025] In order to facilitate the rotation of the roller, a gap must be left at the connection between the roller groove and the roller, and the gap will cause air leakage. Therefore, it is necessary to solve the sealing problem.

[0026] The load-bearing frame is designed with a guide edge that is smaller inward and wider outward at the inlet and outlet ends of the dry filter box. The main purpose is to facilitate the overall docking of the dry filter box and the dry filter module. When the dry filter box is initially pushed forward, it is accurately positioned under the action of the guide edge and can smoothly overlap with the front sealing edge. Then, under the secondary guiding action of the guide wheel, it moves accurately in the channel to prevent the dry filter box from getting stuck.

[0027] The sliding device, the roller groove and the roller are respectively detachable structures, which facilitates the maintenance of the roller.

[0028] The supporting frame is used to support the dry filter module as a whole and the dry filter box that increases in weight after absorbing paint; the supporting frame supports the side sealing plates and the front sealing plates, the side sealing plates support the roller grooves, the roller grooves support the rollers, the rollers support the dry filter box, and the dry filter box slides on the upper surface of the rollers to achieve movement in and out operations.

[0029] The roller groove of the sliding device is designed as a U-shaped groove structure, with a flat surface designed at the bottom, and the whole falls on the load-bearing plane of the side sealing plate, and the whole surface is loaded; the upper part of the roller groove is designed with an opening for the roller to slide; the entire sliding device is connected to the side sealing plate and the side bag frame through concentric holes to form an integral structure, and the bag filter frame, the sliding device and the side sealing plate can be disassembled separately.

[0030] Preferably, The side sealing plate is provided with the side sealing edge; or / and: The bag filter frame connected to the side sealing plate is provided with the side sealing edge.

[0031] It should be noted that The side sealing edge can be directly designed on the side sealing plate, or can be separately designed on the side pocket frame, or can be separately designed on other structural parts.

[0032] Preferably, The side sealing edge has a side sealing plane on its upper surface; The two sides of the side sealing plane are integrally connected to the downward or obliquely downward side extension surface respectively.

[0033] It should be noted that The side sealing edge has the function of overlapping and sealing with the side elastic sealing body of the dry filter box, and at the same time, preventing obstruction and jamming during the pushing process.

[0034] The side extension surface has the function of increasing the strength of the side sealing edge and preventing deformation after bearing the weight of the dry filter box.

[0035] The side sealing edge is mainly used for sealing the lower air outlet dry filter module and the dry filter box; the dry filter box is supported at the bottom, and it is extremely difficult to ensure smooth sliding and tight overlap sealing during the operation of the dry filter box absorbing paint and gaining hundreds of kilograms of weight when moving in and out.

[0036] In addition, the roller groove, in conjunction with the roller's rotational opening, is designed to be larger than the roller's rotational perimeter, making it highly susceptible to air leakage at the roller groove opening, leading to paint mist overflow. To facilitate the dry filter box being carried solely by the roller, the upper surface of the side sealing edge is lower than the upper surface of the roller, leaving a certain gap. This prevents hard contact between the dry filter box and the side sealing edge, ensuring smooth passage of the dry filter box. Simultaneously, a side elastic seal is designed and securely attached to the lower surface of the metal or wooden hard structural member at the bottom of the dry filter box, filling the gap between the side sealing edge and the roller and providing a redundant margin. During the sliding motion of the dry filter box, the side elastic seal achieves a seal when in contact with and under pressure from the sealing edge structure. Furthermore, the sliding resistance during the connection between the side elastic seal and the metal material of the upper surface of the side sealing edge is minimal, thus not affecting smooth passage. This effectively ensures smooth sliding of the dry filter box and a sealing effect on the bottom side.

[0037] Preferably, The bag filter frame includes a side bag frame and a front bag frame; The side pocket frame and the front pocket frame are respectively provided with a plane structure, and the plane structures have the same horizontal height; The side pocket frames and the front pocket frames are designed independently; or / and: The side pocket frames and the front pocket frames are directly integrated onto the side sealing panels and the front sealing panels, respectively.

[0038] It should be noted that The bag filter frame is used to carry the bag filter; the side bag frame and the front bag frame are designed to be planar structures of the same height. When carrying the bag filter frame, they are tightly overlapped to prevent air leakage.

[0039] The paint mist airflow is under positive pressure from top to bottom, and the support structure of the bag filter is on the lower plane. Under the dual downward forces of airflow and gravity, the positive pressure paint mist airflow will press the plane structure of the bag filter frame downward more and more tightly to avoid air leakage.

[0040] The function of the bag filter frame is mainly to arrange the integrated bag filter. The bag filter is connected at the shortest distance after the dry filter box for precision filtration, which is more conducive to the cleanliness of the rear-end paint mist wind and further avoids the air duct and fan from being contaminated by paint mist.

[0041] With respect to the ventilation mode of the dry filter box with up-and-down ventilation, the bag filter frame is arranged in a horizontal direction to reduce wind resistance and make ventilation smoother.

[0042] The bag filter frame is surrounded by a frame and supported to prevent the bag filter frame from being deformed as a whole and causing air leakage.

[0043] The support of the bag filter frame is designed to be at the same horizontal height, and the bag filter frame is in full contact with the support structure to avoid air leakage.

[0044] The planar structure of the bag filter frame carries the bag filter with elastic seal, and the high-pressure paint mist winds downward, pressing the bag filter frame and the bag filter with elastic seal more and more tightly to prevent air leakage.

[0045] Preferably, Each of the side sealing plates with the side sealing edges is divided into two functional areas in a plane centered on the forward direction of the dry filter box, including a sealing area and a load-bearing sliding area; or / and: Each of the bag filter frames with the side sealing edges is divided into two functional areas in a plane with the forward direction of the dry filter box as the center, including a sealing area and a load-bearing sliding area; The side sealing edge is arranged in the sealing area; The rollers of the sliding device are arranged in the load-bearing sliding area.

[0046] It should be noted that The side sealing plate and each side lower frame of the dry filter box are divided into two functional areas, the functions of which are to independently seal and load-bearing and sliding, and to achieve sealing of the dry filter box during the sliding process of moving in and out during replacement and after it is in place; The dry filter box cooperates with the sealing area and the load-bearing sliding area of ​​the side sealing edge to jointly realize the sealing of the dry filter box during the sliding process of moving in and out during the replacement process and after it is in place.

[0047] Preferably, The sealing area is close to the inner side of the dry filter box; The load-bearing sliding area is close to the outer side of the dry filter box; The upper surfaces of the sliding device and the roller are respectively higher than the upper surfaces of the side sealing edge and the front sealing edge; The height difference between the upper surface of the sliding device and the roller and the upper surface of the side sealing edge is used to arrange the side elastic sealing body.

[0048] It should be noted that The sealing area is designed on the inner side, and the load-bearing sliding area is designed on the outer side, in order to prevent air from leaking into the workshop from the overlapping parts of the roller, the roller groove and the dry filter box.

[0049] Preferably, The dry filter box includes an elastic sealing body; The elastic sealing body comprises a side elastic sealing body and a front elastic sealing body; The dry filter box comprises a side lower frame and a front lower frame; The side lower frame is connected to the side elastic sealing body; The front lower frame is connected to the front elastic sealing body; The side lower frame of the dry filter box is centered in the forward direction of the dry filter box, with a box sealing area arranged inwardly and a box bearing sliding area arranged outwardly.

[0050] It should be noted that The dry filter box is arranged in zones to cooperate with the sealing area and the sliding bearing area of ​​the lower air outlet dry filter module to achieve the dual functions of bearing sliding and sealing.

[0051] Preferably, The side seal slides along the side elastic seal body of the box sealing area and seals; The front sealing edge slides and seals along the front elastic sealing body of the front lower frame; The side elastic sealing body and the front elastic sealing body are provided with redundant heights.

[0052] It should be noted that The purpose of setting redundant height of the elastic sealing body is to make it more tightly sealed when it is deformed by being highly compressed under force and overlaps with the sealing structure.

[0053] Preferably, The front sealing plate is provided with a front sealing edge; The front sealing plane is integrally connected to the front extension surface extending outward and downward; The front sealing edge has the front sealing plane at the top; The front sealing edge includes a front sealing plane, a front extension surface, and a longitudinal surface.

[0054] It should be noted that The function of the front sealing edge is to overlap and seal with the front elastic sealing body of the dry filter box, and at the same time prevent obstruction and jamming during the pushing process.

[0055] The front sealing edge structure is primarily used to seal the lower air outlet dry filter module and the dry filter box. The dry filter box bears the weight and supports the bottom. During movement in and out of the dry filter box, which has gained hundreds of kilograms due to paint absorption, the dry filter box must first pass over the front sealing edge structure before being sealed. Ensuring both smooth passage and a tight seal at the joint is extremely difficult.

[0056] The surface of the front sealing edge is made of metal, and an elastic sealing body is arranged at the bottom of the dry filter box. The metal and the elastic sealing body that is not subjected to strong pressure are overlapped and squeezed to achieve sealing. At the same time, the metal and the elastic sealing body can slide smoothly when overlapped.

[0057] Preferably, The front extension surface is further connected to the downward or obliquely downward longitudinal surface; The front extension surface is designed with an inclined surface or an arc surface; The connection point of the front extension surface with the front sealing plane is higher than the connection point with the longitudinal surface.

[0058] It should be noted that The function of the front sealing plane is to overlap and seal with the front elastic sealing body of the dry filter box; the front sealing plane is set to a certain width so that the overlapping surface with the front elastic sealing body is large enough to avoid air leakage caused by incomplete overlap due to errors or deviations.

[0059] The front extension surface is designed to be a certain inclined surface, or an arc-shaped surface, and its height is lower than the front sealing plane. The purpose is that when the dry filter box is pushed forward, the hard structural parts of the front lower frame of the dry filter box begin to overlap with the front extension surface, first overlap at a low position and then turn to a high position, which has a certain guiding effect, ensures that it can be pushed forward smoothly, and prevents obstruction and jamming.

[0060] Under the deadweight of the dry filter box, the elastic sealing body of the dry filter box is vertically downward when overlapped, and the deadweight of the dry filter box can overcome the elastic force of the elastic sealing body and then be pressed against the sealing edge structure.

[0061] The paint mist airflow is under positive pressure from top to bottom, and the bearing structure of the dry filter box, the side sealing edge and the front sealing edge are all below the dry filter box. The positive pressure paint mist airflow presses the plane structure of the sealing edge structure tighter and tighter to avoid air leakage.

[0062] The functions of the longitudinal surface are, firstly, to increase the strength of the front extension surface, and secondly, to prevent the leading edge of the single-piece plate of the front extension surface from causing scratches to personnel during the replacement operation of the dry filter box and the bag filter.

[0063] Preferably, The front sealing edge and the front sealing plane are lower than the lower surface of the hard structural member at the bottom of the front lower frame of the dry filter box; The height difference between the front sealing edge and the front sealing plane and the lower surface of the hard structural part at the bottom of the dry filter box is used to arrange the front elastic sealing body.

[0064] Preferably, The side sealing edge and the side sealing plane are lower than the lower surface of the hard structural member at the bottom of the side lower frame of the dry filter box; The height difference between the side sealing edge and the side sealing plane and the lower surface of the hard structural member at the bottom of the dry filter box is used to arrange the positive side elastic sealing body.

[0065] It should be noted that The height of the front sealing edge and the front sealing plane is lower than the lower surface of the bottom hard structural part of the front lower frame of the dry filter box, leaving a gap. The purpose is to overlap and compress the redundant height and high elasticity front elastic sealing body of the front lower frame and the front sealing edge during the sliding process to seal.

[0066] On the contrary, the height of the side sealing edge and the side sealing plane is lower than the lower surface of the bottom hard structural member of the front lower frame of the dry filter box, leaving a gap. The purpose of the design is to overlap and compress the redundant height and high elasticity front elastic sealing body for sealing.

[0067] The sealing edge structure, combined with the box sealing area of ​​the dry filter box, is an extremely critical technology. For the dry filter module with upper and lower ventilation, the weight and load of the dry filter box are all at the bottom. Moreover, during the operation of moving in and out after the dry filter box absorbs paint and gains hundreds of kilograms of weight, it is extremely difficult to ensure smooth passage and tight overlap and sealing of the bottom front of the dry filter box.

[0068] To facilitate maintenance, the roller groove and the roller are designed to be detachable, and the front sealing edge and the side sealing edge are multi-connected non-integrated structures. Since the side sealing plate and the front sealing plate are folded several times respectively, certain dimensional errors may occur. It is also very difficult to keep the upper surfaces of the side sealing edge and the front sealing edge consistent in the height direction.

[0069] The dry filter box is generally a wooden frame with a circle of wood around the bottom to connect it as a whole. The wood is a hard structure, and the load-bearing of the dry filter box falls on the wooden frame, which is rough. The sealing edge structure is made of metal, which is smooth. Both are made of hard materials for sliding connection, and sufficient space must be left, otherwise it will cause large height gaps or small gaps to get stuck and be difficult to slide.

[0070] By designing the metal sealing edge structure and overlapping the sealing with the elastic sealing body designed at the bottom of the dry filter box, the sealing can be effectively guaranteed, and the rough wooden surface is connected to the elastic sealing body with a certain elastic compression space having a fixed flexible characteristic, which is converted into sliding compression between the metal and the elastic sealing body, so that the sealing effect is good and the sliding is not hindered.

[0071] The sealing surface between the dry filter box and the elastic sealing body and the contact surface between the dry filter box and the roller are designed independently to prevent the elastic sealing body with redundant height from contacting the roller and affecting the smooth passage of the dry filter box on the upper surface of the roller.

[0072] Therefore, the bearing, sliding and sealing functions can be realized independently without interfering with each other, achieving both sealing and smooth passage. In addition, the sealing surface of the elastic sealing body is designed on the inside, effectively preventing paint mist from overflowing into the roller groove and adhering to the roller body.

[0073] At the same time, flexible sealing plates extending downward are designed around the bottom of the dry filter box to further prevent paint mist from sticking to the connection between the sealing edge structure and the elastic sealing body.

[0074] Preferably, The sealing structure slides along the elastic sealing body at the bottom of the dry filter box to seal; The side sealing edge and the side elastic sealing body of the box sealing area of ​​the lower frame of the dry filter box side overlap, slide and seal; The front sealing edge and the front elastic sealing body of the box bearing sliding area of ​​the front lower frame of the dry filter box are overlapped, slid and sealed.

[0075] Preferably, The side cover plates and the front cover plates are respectively integral structural plates, the main body plates have no splicing, and have multiple functions.

[0076] It should be noted that The side pocket frame with the side sealing edge is connected with the side sealing plate and the roller groove to form an integral structure, and is detachable for easy maintenance.

[0077] The side sealing plates and the front sealing plates serve as the enclosure of the ventilation duct and are respectively made of a single plate. No welding or connectors are required for the entire plate, thus avoiding welding deformation, worrying about connector sealing, and risks such as connection size errors.

[0078] The longitudinal connections at the four corners of the side sealing plate and the front sealing plate are fixed by multi-hole connection and then welded to ensure the connection accuracy.

[0079] The side sealing plate can also carry the roller groove and the roller, can install and fix multiple guide wheels, can be connected to the side bag frame and carry the bag filter, can be overlapped and sealed with the side elastic sealing body at the bottom of the dry filter box through the side sealing edge of the side bag frame, and can be connected and fixed to the frame sealing structure.

[0080] The front sealing edge and the bearing plane structure of the front bag frame for installing the bag filter are designed on the upper surface of the front sealing plate. No holes are required on the front of the front sealing plate, and there is no risk of paint mist leakage.

[0081] Preferably, The side pocket frame with the side sealing edge is connected with the side sealing plate and the roller groove to form an integral structure and is detachable.

[0082] It should be noted that The ventilation area of ​​the side sealing plate can be connected to the sliding device and the side bag frame through at least two openings on one side, thereby reducing the openings of the ventilation duct, that is, reducing the risk of paint mist overflowing through the openings.

[0083] Preferably, The side sealing plate is provided with a plurality of openings in sequence along the length direction for installing the guide wheels.

[0084] It should be noted that It can be understood that several guide wheels are installed on both sides along the direction of movement of the dry filter box to accurately guide the dry filter box to avoid skewness causing uneven promotion or deviation from the upper air inlet dry filter module, which may easily lead to air leakage.

[0085] The outer surface of the lower side of the dry filter box is in close contact with the guide, and the guide belt is provided with a guide wheel, which is installed in several openings of the side cover plate; several guide wheels are arranged equidistantly along the side of the channel for the dry filter box to move; the guide wheels ensure that the dry filter box has no deviation during the forward and backward passage, and moves parallel to the upper air inlet dry filter module, ensuring that the sealing effect of the dry filter box is the best and the passage is the smoothest; the arrangement of the first group of guide wheels on both sides of the inlet end of the side cover plate is designed to open outward by a certain distance, and combined with the guidance and precise positioning of the guide edge of the support frame, it is beneficial for the dry filter box to be unrestricted and smoothly advanced during the initial advancement process.

[0086] Preferably, The bottoms of the side sealing plates and the front sealing plates are respectively provided with folding plates with a certain inclined angle, and the inclined surfaces of the folding plates overlap with the plane of the air outlet below.

[0087] Or: A downward longitudinal plate is provided at the bottom of each of the side sealing plates and the front sealing plate, and the longitudinal plate is provided with an inward extending surface for overlapping with the air outlet below.

[0088] It should be noted that The function of the folding plate is to balance and adjust the errors caused by the double hard connection between the side cover plate and the front cover plate supported by the supporting frame, and the connection between the folding plate and the air outlet through the folding plate; and the welding operation of the inclined surface of the folding plate and the flat surface of the air outlet is simple, the welding effect is good, and the sealing is good.

[0089] The supporting frame supports the sealing plate with a first contact surface in the height direction, and the folding plate has a second contact surface with the air outlet below. If there is a height tolerance between the two overlapping surfaces, the following problems are likely to occur.

[0090] There is a gap between the overlapping surfaces of the sealing plate and the supporting frame, which causes the supporting frame to be unable to bear all or part of the force as a whole, and the folding plate falls directly on the lower air outlet. The lower air outlet is passively subjected to force, while the supporting frame is not subjected to force. The lower air outlet is originally a ventilation duct and does not have sufficient strength to bear the overall dry filtration module, which easily leads to deformation and air leakage after being subjected to force.

[0091] Alternatively, the sealing plate falls completely on the supporting frame, and the folding plate is connected to the air outlet below by a hard structural member. There may be a gap in the connection between the two, which makes welding difficult and easily leads to air leakage.

[0092] In addition, no matter which error, it may cause individual errors and overall errors between the upper air inlet dry filter module, the lower air outlet dry filter module and the dry filter box, which will affect the sealing.

[0093] The design of the two connection methods is based on the load-bearing skeleton of the dry filter module and the structural form and connection method adopted by the ground, platform, air duct, etc. The ultimate design goal is to ensure that the absolute positioning of the dry filter module is more accurate, the connection error is minimized, and the sealing is optimal.

[0094] In summary, the design focus of the technical solution of the present invention is summarized and the main beneficial effects it brings.

[0095] 1. Utilize the smoothness of the metal surface and the small resistance during the sliding overlap of the elastic sealing body, and the smooth sliding overlap of the metal part and the elastic sealing body to fully seal.

[0096] 2. Elastic seal deformation seal under pressure: The redundant elastic height design of the highly elastic elastic seal body is adopted. Under the downward pressure generated by the deadweight of the dry filter box, the elastic seal body is deformed after being compressed to seal. The redundant height of the elastic seal body has little sliding resistance with the metal parts after being compressed, and the dual functions of sealing and load-bearing sliding are realized at the same time.

[0097] 3. Design different functions through zoning on the same plane structure: By setting two independent areas along the length direction in the area where the two sides of the lower air outlet dry filter module overlap with the bottom plane of the dry filter box, and distinguishing between high and low areas, the outer high area and the inner low area, the dual functions of sealing and load-bearing sliding are achieved at the same time.

[0098] 4. Different functions are designed through high and low structures: by arranging the rollers for supporting the dry filter box in the outer high areas on both sides of the lower air outlet dry filter module, and arranging metal structural parts for overlapping with the elastic sealing body at the bottom of the dry filter box in the inner low area, the high area is load-bearing and sliding, and the low area is used for sealing but not load-bearing. This design can simultaneously achieve the dual functions of sealing and load-bearing and sliding.

[0099] 5. Through the design of the sealing structure, the elastic sealing body at the bottom of the dry filter box can be overlapped, so that the dry filter box is not subjected to force during the sliding process, but at the same time a sealing effect can be achieved.

[0100] 6. Through the side sealing edge design: through the side sealing edge of the lower air outlet dry filter module, combined with the hard structural component plane area of ​​the bottom plane of the side lower frame of the dry filter box, two functional areas are divided, the box sealing area and the box load-bearing sliding area are designed independently, and the box sealing area and the box load-bearing sliding area are designed with a height difference to achieve the sealing of the side sealing edge and the side elastic sealing body of the box sealing area at the bottom, and the box load-bearing sliding area at the bottom of the side of the dry filter box can slide smoothly on the roller, while realizing the dual functions of sealing and load-bearing sliding.

[0101] 7. Through the front sealing edge design: through the front sealing edge of the lower air outlet dry filter module, combined with the hard structural parts at the bottom of the front of the dry filter box, the elastic sealing body with redundant height is connected and fixed, so that the dry filter box can still slide through the front sealing edge without obstruction even after absorbing hundreds of kilograms of paint and gaining weight, and at the same time realize the dual functions of sealing and sliding through the front of the lower side of the dry filter box.

[0102] 8. Dry filter box coordination: Through the coordination design of the dry filter box, the hard structural component plane area of ​​the bottom plane of the side lower frame on both sides of the dry filter box is divided into an outer side and an inner side along the length direction. The hard structural component is retained on the outer side and is exposed for bridging with the roller to bear the load; the inner side is connected and fixed with the elastic sealing body with redundancy for crimping and sealing. Such a design can simultaneously achieve the dual functions of sealing and load-bearing sliding.

[0103] 9. Technical features and important beneficial effects - jointly realizing multiple functions of bearing, sliding and sealing: by the roller bearing the box bearing sliding area at the bottom of the dry filter box, the same side bottom of the dry filter box can simultaneously realize the two functions of sealing and bearing sliding.

[0104] By arranging side sealing edges in the inner low areas on both sides of the dry filter module at the lower air outlet, and utilizing the characteristics of the metal and elastic sealing body overlapping with small sliding resistance and smooth sliding, and overlapping with the elastic sealing body with redundancy in the height direction of the bottom of the dry filter box, a tight seal is achieved and the dry filter box slides smoothly, thereby preventing paint mist from overflowing or air leakage; the outer high area is used for bearing and sliding, and the inner low area is used for sealing; the elastic sealing body with redundancy at the height of the inner low area does not affect the sliding of the dry filter box on the roller, thereby jointly achieving the dual functions of sealing and smooth sliding of the dry filter box, and achieving independent bearing, sliding and sealing without interfering with each other, thereby achieving both sealing and smooth passage.

[0105] The sealing plane of the elastic sealing body is designed to be located on the inner side of the dry filter box, effectively intercepting the paint mist from overflowing into the roller groove and adhering to the roller body.

[0106] The side surface of the lower air outlet dry filter module adopts the design of the roller and the sealing edge structure, and the two work together.

[0107] 10. Use three-sided sealing to improve the sealing effect: by overlapping the side sealing edges on both sides with the side elastic sealing bodies of the side lower frame of the dry filter box, combined with the front sealing edges on the bottom and the front elastic sealing bodies of the front lower frame of the dry filter box, the three-sided sealing of the sides and front of the bottom of the dry filter box is fully achieved.

[0108] 11. Improving the sealing effect: the side sealing edge connected to the side bag frame is overlapped and sealed with the side elastic sealing body of the dry filter box through the side sealing plate and the sliding device.

[0109] 12. Improving the sealing effect: The front sealing edge on the upper surface of the front sealing plate is overlapped and sealed with the front elastic sealing body of the dry filter box.

[0110] 13. Improve the sealing effect: The frame sealing structure connected to the side sealing plate and the roller groove ensures that the two opposite dry filter boxes are completely compressed in the longitudinal plane. Elastic sealing strips are arranged on opposite sides of the longitudinal plane of the frame sealing structure. During the compression process, the elasticity of the sealing strips is compressed to achieve sealing.

[0111] 14. Improve the sealing effect: Through the front automatic locking sealing device of the dry filter box facing forward and the side automatic compression sealing structure, the front of the dry filter box is further compressed and locked forward and the side is further compressed and locked toward the middle at the same time, so that the seal is tighter.

[0112] 15. Effect of smooth carrying and sliding: the dry filter box is carried by the roller, and the hard structure of the dry filter box slides on the upper surface of the roller, thereby realizing the movement of the dry filter box in and out.

[0113] 16. Reduced investment cost: The sealing plate, roller trough and bag filter frame have independent functions and are equipped with sealing structure. No additional connectors are required. The structure is extremely simple and the overall investment cost is low.

[0114] 17. Modular design is efficient and precise: the overall structure adopts modular design, assembly, and on-site installation, with precise dimensions; the pure mechanical structure has no external connection components and is stable and reliable.

[0115] 18. The overall sealing effect is improved and replacement is convenient: the higher the sealing, the better the anti-paint mist effect, which avoids the paint mist adhering to the connector and the need to spend a lot of time to remove the paint residue during the online replacement process, saving labor costs, shortening the replacement time and improving replacement efficiency.

[0116] 19. The overall technical solution, through practical application, uses a smoke tube to test the sealing of all overlapping seals during online production, and there is no air leakage at all.

[0117] Other technical features and other beneficial effects of the technical solution of the present invention.

[0118] 1. The integrated enclosure structure connected by the side sealing plate and the front sealing plate is firmly connected to the air outlet, thereby improving the strength and being airtight to prevent air leakage.

[0119] 2. The overall plate design has improved sealing and strength: the side sealing plates and the front sealing plates are respectively processed and manufactured from one plate, and the entire plate does not require additional welding or connectors, thus avoiding welding deformation, and there is no risk of connector sealing concerns, connection size errors, etc.; the longitudinal connections at the four corners of the side sealing plates and the front sealing plates are fixed through porous connections and then welded to ensure the accuracy of the connection, as well as better strength and sealing.

[0120] 3. Easy maintenance: the roller and the roller groove can be disassembled and replaced, and the maintenance is easy.

[0121] 4. Single part realizes multi-function: the side sealing edge and the sealing plate with front sealing edge structure also serve as the bearing frame of the bag filter, which can be used for multiple purposes.

[0122] 5. Single part realizes multiple functions: the upper surface of the front sealing plate is designed with the front sealing edge, and the front bag frame for installing the bag filter supports the plane structure. No holes are required on the front of the front sealing plate, and there is no risk of paint mist leakage.

[0123] 6. Avoid errors: By designing the folding plate at the bottom of the sealing plate, the supporting frame supports the connection between the side sealing plate and the front sealing plate, and the connection between the folding plate and the air outlet. The error caused by the double hard connection between the two can be balanced and adjusted through the folding plate; and the welding operation of the inclined surface of the folding plate and the flat surface of the air outlet is simple, the welding effect is good, and the sealing is good.

[0124] 7. Improve accuracy and reduce deviation: The guide wheels are provided on both sides of the lower air outlet dry filter module at the joints with the outer surfaces of the lower side parts of the dry filter box to ensure that the dry filter box has no deviation during the forward and backward passage, and moves parallel to the upper air inlet dry filter module with minimal deviation, thereby ensuring the best sealing effect and smoothest passage of the dry filter box; the guide wheels on both sides of the inlet end of the side sealing plate are arranged to open outward by a certain distance, and the guidance and precise positioning of the guide edge combined with the supporting frame are conducive to the smooth advancement of the dry filter box without restriction during the initial advancement process.

[0125] 8. Ensure strength and precision: The lower air outlet dry filter module and the dry filter box are supported by the overall load-bearing frame, with uniform weight distribution and high frame strength. The overall module is modularly designed and manufactured, prefabricated in advance, with accurate dimensional accuracy, easy installation, and small installation error.

[0126] 9. Improved accuracy: The guide edge of the supporting frame facilitates accurate positioning of the dry filter box during initial docking during the in-and-out operation, thereby avoiding deviation.

[0127] 10. Improved Accuracy: The upper air inlet and lower air outlet of the dry filter box correspond to the upper air inlet dry filter module and the lower air outlet dry filter module, respectively, with center alignment and no distortion. The frame sealing structure, connected to the side sealing plate and the roller groove, ensures that the two opposing dry filter boxes are completely compressed in the longitudinal plane. Elastic sealing strips are arranged on opposite sides of the longitudinal plane of the frame sealing structure, and the elasticity of the strips is compressed during the compression process.

[0128] 11. The lower air outlet dry filter module is connected and fixed to the frame sealing structure, and at the same time, it is accurately positioned and connected and fixed to the upper air inlet dry filter module, and the sealing between the two opposite dry filter boxes is achieved through the frame sealing structure.

[0129] 12. External force strengthens locking and pressing to enhance sealing: Through the front automatic locking and sealing device of the dry filter box facing forward, a cylinder or mechanical locking device is used, and the upper side sides automatically press the sealing structure of the side of the dry filter box inward, thereby achieving external force-enhanced locking and pressing sealing.

[0130] 13. Locking and crimping at multiple connections to improve sealing: the pushing and pressing structure of the automatic locking sealing device in front of the external front of the dry filter box, the horizontal pressing structure of the automatic pressing sealing structure on the left and right sides of the upper side, the flat elastic sealing body on the dry filter box, and the two front and rear connecting sealing structures of the dry filter box achieve enhanced locking outside the seal; combined with the multi-bag precision filtration at the rear end, the overall filtration effect is better; the lower air outlet dry filter module together realizes the function and sealing effect of the overall dry filter module with upper and lower ventilation.

[0131] 14. External sealing protection to prevent paint mist adhesion: Through the coordinated design of the dry filter box, a flexible seal extending downward is designed around the bottom of the dry filter box to prevent paint mist from adhering to the connection between the sealing structure and the elastic sealing body and making it difficult to separate, and further anti-paint mist treatment is performed.

[0132] 15. Multiple seals improve the sealing effect: an elastic sealing strip is arranged on the inner side of the longitudinal surface of the roller groove area of ​​the side sealing plate. During the sliding process of the dry filter box or after it is in place, the lower side outer box body is overlapped with the elastic sealing strip to achieve secondary sealing and take further protective measures.

[0133] The above overall technical solution can simultaneously achieve multiple functions of bearing, sliding and sealing, with improved sealing effect, better anti-paint mist effect, simple and practical equipment, higher precision, improved stability, simple operation, high replacement efficiency and reduced investment cost.

[0134] The above overall technical solution needs to be implemented in combination with other technical solutions.

[0135] The overall technical solution of the lower air outlet dry filter module is to achieve multiple functions of bearing, sliding and sealing by combining the upper and lower ventilated dry filter box and the upper air inlet dry filter module and the frame sealing structure, and add the external front automatic locking sealing device and the side automatic crimping sealing structure to achieve enhanced locking outside the seal and improve the compression sealing effect; combined with the precision bag filter at the rear end, a better overall filtering effect is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0136] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0137] Figure 1A schematic diagram of the axonometric structure of a bottom-outlet dry filter module and a sealing structure for top-bottom ventilation provided in this application Figure 2 Axonometric diagram of the side sealing structure Figure 3 Axonometric diagram of the front sealing structure Figure 4 Axonometric cross-section diagram of a dry filter box Figure 5 Axonometric diagram of a dry filter module with a dry filter box Figure 6 Axonometric diagram of the overall module including the frame sealing structure and locking device Figure 7 A top view of the fourteenth embodiment Figure 8 Schematic diagram of the cross section of the folding plate of Example 15 Figure 9 Schematic diagram of the longitudinal plate cross section of embodiment 16 Figure 10 A side view of the connection between the dry filter box and the roller in Example 2 Figure 11 Schematic cross-sectional view of the positive pressure seal of the bag filter in Example 7.

[0138] The following are the descriptions of the reference numerals: Lower air outlet dry filter module 200 Closing plate 1 Side cover 11 Front cover 12 Perimeter 13 Folding plate 14 Longitudinal plate 15 Extension surface 16 Bolt hole 17 Load-bearing frame 2 Guide edge 21 Sliding device 3 Roller groove 31 Roller 32 Guide 4 Guide wheel 41 Sealing along structure 5 Side sealing edge 51 Side sealing plane 511 Side extension 512 Sealed area 52 Loading sliding area 53 Front sealing edge 54 Front sealing plane 541 Front extension 542 Longitudinal surface 543 Bag filter frame 7 Side pocket frame 71 Front pocket frame 72 Planar structure 74 Bag filter 75 Dry filter box 8 Elastic sealing body 81 Side elastic seal 811 Front elastic seal 812 Side lower frame 82 Box sealing area 821 Box carrying sliding area 822 Front lower frame 83 Frame sealing structure 9 Front automatic locking seal 30 Side automatic compression sealing structure 40 Upper air inlet dry filter module 100. DETAILED DESCRIPTION

[0139] In order to make the technical means and solutions, creative features, objectives and effects of the present invention easier to understand, the present invention is further explained below with reference to diagrams and specific embodiments.

[0140] In the description of the present invention, it should be noted that when terms such as "upper", "lower", "inner", "outer", "left", and "right" indicate orientation or positional relationships, they should be understood as being based on the orientation or positional relationships shown in the drawings, or the orientation or positional relationships in which the product of the present invention is usually placed when in use, or the orientation or positional relationships commonly understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention. In addition, when terms such as "first" and "second" appear, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, terms such as "installation", "setting", and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two components. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0141] Refer to the attached Figures 1 to 11 The figure shows a schematic structural diagram of a bottom air outlet dry filter module and a sealing structure for top and bottom ventilation provided by the present invention.

[0142] The lower air outlet dry filter module 200 includes: a sealing plate 1, a supporting frame 2, a sliding device 3, a guide 4, a sealing edge structure 5, and a bag filter frame 7; Sealing plate 1, including side sealing plates 11 and front sealing plates 12; The side cover 11 and the front cover 12 are connected together to form a surrounding body 13 of the paint mist enclosed ventilation duct, and are firmly connected after precise positioning; The sealing edge structure 5 includes a side sealing edge 51 and a front sealing edge 54; The side sealing edge 51 is arranged in the sealing area 52 and overlaps and seals with the elastic sealing body 81 of the dry filter box 8; The sliding device 3 is arranged in the load-carrying sliding area 53, carrying and driving the dry filter box 8 to slide; The lower air outlet dry filter module 200 carries the dry filter box 8, and the center is aligned with the dry filter box 8 of the upper air inlet dry filter module 100, ensuring that the dry filter box 8 can move in and out smoothly and the connection is tightly sealed.

[0143] The side sealing edge 51 and the front sealing edge 52 are respectively overlapped and sealed with the elastic sealing body 81 of the dry filter box 8, and the sliding device 3 carries and drives the dry filter box 8 to slide; the dry filter box 8 can simultaneously achieve the dual functions of sealing and carrying sliding.

[0144] The lower air outlet dry filter module 200 supports the dry filter box 8 from below, and the upper air inlet dry filter module 100 limits the dry filter box 8 from above, aligning with the center of the dry filter box 8 to ensure that the dry filter box 8 can move in and out and slide smoothly, and at the same time the connection is tightly sealed.

[0145] Example 1, refer to the attached Figure 1 .

[0146] A set of dry filter modules is configured with two overlapping opposite dry filter boxes 8. The upper parts of the two dry filter boxes 8 correspond to the upper air inlet dry filter module 100, and the lower parts correspond to the lower air outlet dry filter module 200. The two dry filter boxes 8 are compressed and connected by a frame sealing structure 9, and the frame sealing structure 9 is a single-board clamped sealing strip; the lower front of the dry filter box 8 is locked forward by the front automatic locking sealing device 30, and the upper front of the dry filter box 8 is compressed forward and laterally inward by the side automatic compression sealing structure 40.

[0147] Further, The side cover 11 carries the sliding device 3; The sliding device 3 includes a roller groove 31 and a roller 32; The roller 32 carries and drives the dry filter box 8 to slide.

[0148] The supporting frame 2 supports the body of the side cover plate 11 and the front cover plate 12 as well as all the structures supported thereon; The sliding device 3, as well as the roller groove 31 and the roller 32, are respectively detachable structures, which facilitates the maintenance of the roller 32; The supporting frame 2 is designed with a guide edge 21 that is narrow inward and widens outward at the inlet and outlet ends of the dry filter box 8 .

[0149] Example 2, refer to the attached Figure 1 .

[0150] The supporting frame 2 is used to support the dry filter module as a whole and the dry filter box 8 which increases in weight after absorbing paint; the supporting frame 2 supports the side sealing plate 11 and the front sealing plate 12, the side sealing plate 11 supports the roller groove 31, the roller groove 31 supports the roller 32, and the roller 32 supports the dry filter box 8. The dry filter box 8 slides on the upper surface of the roller 32 to realize the operation of moving in and out; In order to facilitate the rotation of the roller 32, a gap must be left at the connection between the roller groove 31 and the roller 32, and the gap will cause air leakage.

[0151] Refer to the attached Figure 2 , Attachment Figure 10 .

[0152] The bottom of the box bearing sliding area 822 of the side lower frame 82 of the dry filter box 8 falls on the roller 32, and the dry filter box 8 can slide on the surface of the roller 32. The side elastic sealing body 811 of the dry filter box 8 is connected to the box sealing area 821 of the side lower frame 82 of the dry filter box 8. The side elastic sealing body 811 overlaps the side sealing edge 51. In addition to completely overlapping with the side sealing edge 51 to fill the height gap, the side elastic sealing body 811 also has a redundant height. During the sliding process of the dry filter box 8, the self-weight of the dry filter box 8 presses down the redundant height of the side elastic sealing body 811, ensuring that the dry filter box 8 will not be lifted due to the redundant height of the side elastic sealing body 811. The overall force of the dry filter box 8 is all on the upper surface of the roller 32.

[0153] The side elastic sealing body 811 adopts a flat sealing gasket with high elasticity, which is nailed to the bottom hard structural part of the dry filter box 8 by a nail gun and is firmly fixed.

[0154] The position of the gun nail avoids the area overlapping with the side sealing edge 51, ensuring that the height difference between the dry filter box 8 and the side sealing edge 51 is not affected by the height of the gun nail.

[0155] The side sealing plate 11 and the sliding device 3, as well as all the structural parts supported by the side sealing plate 11, are designed as a modular module as a whole, with good overall strength, small error, uniform force, easy processing and manufacturing, and simplified on-site installation.

[0156] Refer to the attached Figure 1 , Attachment Figure 7 .

[0157] The two groups of side sealing plates 11 and the two groups of front sealing plates 12 are respectively arranged in the load-bearing frame 2, and are enclosed together inside the load-bearing frame 2. After being accurately connected through the reserved bolt holes 17, they are fully welded to prevent air leakage and increase strength at the same time. The side sealing plates 11 and the front sealing plates 12 that are enclosed together fall on the upper frame of the load-bearing frame 2 to form a whole. The next step is to first connect the roller 32 to the roller groove 31, and then arrange the roller groove 31 with the roller 32 on the plane area of ​​the side sealing plate 11, and then place the bag filter frame 71 close to the side of the roller groove 31. Each side is connected to the side bag frame 71, the roller groove 31, and the side sealing plate 11 together by at least two bolts. Finally, the guide wheel 41 of the side sealing plate 11 is connected and fixed. In this way, an overall modular module is formed, which is transported as a whole and installed as a whole on site to avoid errors in production assembly and on-site installation. When the side sealing plates and the front sealing plates are arranged inside the load-bearing frame 2, they become one after welding and cannot be removed. However, the roller groove 31 and the roller 32 can be removed for maintenance of the roller 32.

[0158] The supporting frame 2 is designed with a guide edge 21 that is narrow inside and widens outside at the inlet and outlet ends of the dry filter box 8. The main purpose is to facilitate the accurate docking of the dry filter box 8 and the dry filter module as a whole; the dry filter box 8 is arranged on the carrying trolley, and the casters at the bottom of the carrying trolley and the guide edge 21 are used to limit and guide, thereby guiding the dry filter box 8; when the dry filter box 8 is initially pushed forward, the carrying trolley is accurately positioned under the action of the guide edge 21, and can smoothly overlap with the front sealing edge 54, and then under the secondary guiding action of the guide wheel 41, it moves accurately in the channel to prevent the dry filter box 8 from getting stuck.

[0159] The sliding device 3, the roller groove 31 and the roller 32 are respectively detachable structures, which facilitates the maintenance of the roller.

[0160] Refer to the attached Figure 1 , Attachment Figure 2 , Attachment Figure 6 .

[0161] The roller groove 31 of the sliding device 3 is designed as a U-shaped groove structure with a flat surface at the bottom. The whole falls on the load-bearing plane of the side sealing plate 11 and bears the load on the entire surface. An opening for the roller 32 to slide is designed at the upper part of the roller groove 31. The entire sliding device 3 is connected to the side sealing plate 11 and the side bag frame 71 through concentric holes to form an integral structure. The bag filter frame 71, the sliding device 3 and the side sealing plate 11 can be disassembled separately.

[0162] Further, The side sealing plate 11 is provided with a side sealing edge 51; or / and: The bag filter frame 7 connected to the side sealing plate 11 is provided with a side sealing edge 51 .

[0163] It should be noted that Example 3, refer to the attached Figure 1 .

[0164] The side sealing edge 51 is designed separately on the side pocket frame 71 , and the sealing edge and the pocket frame are connected together and are detachable. The pocket frame is designed with a plane structure 74 .

[0165] In addition, the roller groove 31 is designed to match the rotation opening of the roller 32, which is larger than the rotation outer peripheral size of the roller 32. The opening of the roller groove 31 is very easy to leak air, causing paint mist to overflow. In order to facilitate the dry filter box 8 to be carried only by the roller 32, the upper surface of the side sealing edge 51 is lower than the upper surface of the roller 32, leaving a certain gap. There is no hard contact between the dry filter box 8 and the side sealing edge 51, which can ensure the smooth passage of the dry filter box 8. At the same time, a side elastic seal 811 is designed on the lower surface of the metal or wood hard structural part at the bottom of the dry filter box 8 and is firmly connected and will not fall off. The gap between the side sealing edge 51 and the roller 32 is filled and a redundant amount is set. During the sliding process of the dry filter box 8, the side elastic seal 811 is in contact with the sealing edge structure 5 and is under pressure to achieve sealing, and the sliding resistance of the side elastic seal 811 in the process of connecting with the metal material on the upper surface of the side sealing edge 51 is very small, which does not affect the smoothness of the passage. In this way, the smooth sliding of the dry filter box 8 and the sealing effect of the bottom side can be effectively guaranteed.

[0166] The side elastic sealing body 811 adopts a 3-5mm flat sealing gasket.

[0167] The side elastic seal 811 is nailed to the hard structural member using an air nail gun. The nails are spaced 30-50mm apart and evenly spaced, staggered left and right. The large number of nails prevents the side elastic seal 811 from detaching or separating from the wood.

[0168] Further, The side sealing edge 51 has a side sealing plane 511 on its upper surface; The side sealing plane 511 is integrally connected to the downward or obliquely downward side extension surface 512 on both sides.

[0169] It should be noted that Example 4, refer to the attached Figure 1 .

[0170] The side sealing edge 51 is mainly used for sealing the lower air outlet dry filter module 200 and the dry filter box 8. The dry filter box 8 is supported at the bottom. During the operation of moving the dry filter box 8 in and out due to the paint absorption and weight increase of hundreds of kilograms, it is extremely difficult to ensure smooth sliding and tight overlap sealing. The function of the side sealing edge 51 is to overlap and seal with the side elastic sealing body 811 of the dry filter box 8, and to prevent obstruction and jamming during the pushing process; The side extension surface 512 serves to increase the strength of the side sealing edge 51 and prevent deformation of the dry filter box 8 when bearing a load.

[0171] Further, The bag filter frame 7 includes a side bag frame 71 and a front bag frame 72; The side pocket frame 71 and the front pocket frame 72 are respectively provided with a plane structure 74, and the plane structures 74 have the same horizontal height; The side pocket frame 71 and the front pocket frame 72 are designed independently; or / and: The side pocket frame 71 and the front pocket frame 72 are directly integrated into the side cover plate 11 and the front cover plate 12 respectively.

[0172] It should be noted that Example 5, refer to the attached Figure 1 , Attachment Figure 11 .

[0173] The bag filter frame 7 is used to carry the bag filter 75; the side bag frame 71 and the front bag frame 72 are designed to be a plane structure 74 of the same height. When carrying the bag filter frame 7, they are tightly overlapped to prevent air leakage.

[0174] The paint mist airflow is under positive pressure from top to bottom, the supporting structure of the bag filter 75 is on the lower plane, the bag filter body is on the top, and the seal is at the bottom. The lowermost surface of the seal is close to the upper plane of the planar structure 74 of the bag filter frame 7. The gravity of the bag frame is downward, and the paint mist airflow is also from top to bottom. The two are downward in the same direction. Therefore, under the dual downward force of airflow and gravity, the positive pressure paint mist airflow will press the planar structure 74 of the bag filter frame 7 downward more and more tightly to avoid air leakage.

[0175] The bag filter frame 7 is used to arrange the integrated bag filter 75. The bag filter 75 is connected at the shortest distance after the dry filter box 8 for precision filtration, which is more conducive to the cleanliness of the rear end paint mist wind and further avoids the air duct and fan from being contaminated by the paint mist.

[0176] In view of the ventilation mode of the dry filter box 8 with up and down ventilation, the bag filter frame 7 is arranged in the horizontal direction to reduce wind resistance and make ventilation smoother.

[0177] The bag filter frame 7 is surrounded by a frame and supported to prevent the bag filter frame 7 from being deformed as a whole and causing air leakage.

[0178] The support of the bag filter frame 7 is designed to be at the same level, and the bag filter frame 7 is in full contact with the support structure to avoid air leakage.

[0179] The plane of the bag filter frame 7 carries the bag filter 75 with elastic seal. The high-pressure paint mist winds downward, pressing the bag filter frame 7 and the elastic seal bag filter 75 more and more tightly to prevent air leakage.

[0180] Further, Each side sealing plate 11 with a side sealing edge 51 is divided into two functional areas in a plane centered on the forward direction of the dry filter box 8, including a sealing area 52 and a load-bearing sliding area 53; or / and: Each bag filter frame 7 with a side sealing edge 51 is divided into two functional areas in a plane with the forward direction of the dry filter box 8 as the center, including a sealing area 52 and a load-bearing sliding area 53; The side sealing edge 51 is arranged in the sealing area 52; The rollers 32 are arranged in the load-carrying sliding area 53 .

[0181] It should be noted that Example 6, refer to the attached Figure 4 .

[0182] Each side lower frame 82 of the dry filter box 8 is divided into two functional areas along the plane of the length direction, including a box sealing area 821 and a box bearing sliding area 822; The box sealing area 821 is close to the inner side of the dry filter box 8; The box-carrying sliding area 822 is close to the outside of the dry filter box 8; The box sealing area 821 falls on the side sealing edge 51 of the sealing area 52 to seal; The box carrying and sliding area 822 falls above the rollers 32 corresponding to the carrying and sliding area 53 for carrying and sliding.

[0183] It should be noted that The dry filter box is partitioned and matched with the sealing area and sliding bearing area of ​​the lower air outlet dry filter module to achieve the dual functions of bearing, sliding and sealing. The side sealing plate 11 and each side lower frame 82 of the dry filter box 8 are divided into two functional areas, the role of which is to independently seal and load-bearing slide, and at the same time, to achieve the sealing of the dry filter box 8 during the sliding process of moving in and out during the replacement process and after it is in place; The dry filter box 8 cooperates with the sealing area 52 and the bearing sliding area 53 of the side sealing edge 51 to achieve sealing of the dry filter box 8 during the sliding process of moving in and out during the replacement process and after it is in place.

[0184] Further, The sealing area 52 is close to the inner side of the dry filter box 8; The load-carrying sliding area 53 is close to the outside of the dry filter box 8; The upper surface of the sliding device 3 is higher than the upper surface of the side sealing edge 51 and the front sealing edge 54; It should be noted that Example 7, refer to the attached Figure 2 .

[0185] The upper surface of the roller 32 is higher than the upper surface of the side sealing edge 51; The height difference between the upper surface of the sliding device 3 and the upper surface of the side sealing edge 51 is used to arrange the side elastic sealing body 811.

[0186] The sealing area 52 is designed on the inside and the load-bearing sliding area 53 is designed on the outside to prevent air from leaking into the workshop at the joints of the roller 32, the roller groove 31 and the dry filter box 8; the upper surface of the roller 32 is higher than the upper surface of the side sealing edge 51.

[0187] Further, The dry filter box 8 includes an elastic sealing body 81; The elastic sealing body 81 includes a side elastic sealing body 811 and a front elastic sealing body 812; The dry filter box 8 includes a side lower frame 82 and a front lower frame 83; The side lower frame 82 is connected to the side elastic sealing body 811; The front lower frame 83 is connected to the front elastic sealing body 812; The side lower frame 82 of the dry filter box 8 is centered on the forward direction of the dry filter box 8 and is provided with a box sealing area 821 on the inner side and a box bearing sliding area 822 on the outer side.

[0188] Further, The side sealing edge 51 slides and overlaps with the side elastic sealing body 811 of the box sealing area 821 to seal; The front sealing edge 54 slides and overlaps with the front elastic sealing body 812 of the front lower frame 83 to seal; The side elastic sealing body 811 and the front elastic sealing body 812 are provided with redundant heights.

[0189] It should be noted that The elastic sealing body 81 is provided with redundant height, and after being deformed by compression under force, it overlaps with the sealing edge structure 5 to seal more tightly.

[0190] Further, The front sealing plate 12 is provided with a front sealing edge 54; The front sealing edge 54 includes a front sealing plane 541, a front extension surface 542, and a longitudinal surface 543; The front sealing edge 54 has a front sealing plane 541 on the top; The front sealing plane 541 is integrally connected to the front extension surface 542 which extends outward and downward.

[0191] Example 8, refer to the attached Figure 2 .

[0192] The function of the front sealing edge 54 is to overlap and seal with the front elastic sealing body 812 of the dry filter box 8, and to prevent obstruction and jamming during the pushing process; The front sealing edge 54 is primarily used to seal the lower air outlet dry filter module 200 and the dry filter box 8. The dry filter box 8 bears the weight and is supported at the bottom. During the movement of the dry filter box 8, which has gained hundreds of kilograms from absorbing paint, the dry filter box 8 must first pass over the front sealing edge 54 before being sealed. Ensuring both smooth passage and a tight seal is extremely difficult.

[0193] The surface of the front sealing edge 54 is made of metal, and an elastic sealing body 81 is set at the bottom of the dry filter box 8. The metal and the elastic sealing body 81 that is not subjected to strong pressure are overlapped and squeezed to seal. At the same time, the metal and the elastic sealing body 81 overlap to slide smoothly.

[0194] Further, The front extension surface 542 is further connected to a downward or obliquely downward longitudinal surface 543; The front extension surface 542 is designed with an inclined surface or a curved surface; The connection point between the front extension surface 542 and the front sealing plane 541 is higher than the connection point between the front extension surface 542 and the longitudinal surface 543 .

[0195] It should be noted that Example 9, refer to the attached Figure 2 .

[0196] The function of the front sealing plane 541 is to overlap and seal with the front elastic sealing body 812 of the dry filter box 8; the front sealing plane 541 is set to a certain width so that the overlapping surface with the front elastic sealing body 812 is large enough to avoid air leakage caused by incomplete overlap due to errors or deviations.

[0197] The front extension surface 542 is designed to be a certain inclined surface, or an arc-shaped surface, and its height is lower than the front sealing plane 541. The purpose is that when the dry filter box 8 is pushed forward, the hard structural parts of the front lower frame 83 of the dry filter box 8 begin to overlap with the front extension surface 542, first overlapping at a low position and then turning to a high position, which has a certain guiding effect, ensuring that it can be pushed forward smoothly and preventing obstruction and jamming.

[0198] Under the deadweight of the dry filter box 8 , the elastic sealing body 81 of the dry filter box 8 is vertically downward when overlapped. The deadweight of the dry filter box 8 can overcome the elastic force of the elastic sealing body 81 and then be pressed against the sealing edge structure 5 .

[0199] The paint mist airflow is positively pressured from top to bottom. The bearing structure, side sealing edge 51 and front sealing edge 54 of the dry filter box 8 are all below the dry filter box 8. The positive pressure paint mist airflow presses the plane structure 74 of the sealing edge structure 5 tighter and tighter to avoid air leakage.

[0200] The functions of the longitudinal surface 543 are, firstly, to increase the strength of the front extension surface 542 and, secondly, to prevent the leading edge of the single-piece plate of the front extension surface 542 from causing scratches to personnel during the replacement operation of the dry filter box 8 and the bag filter 75.

[0201] Further, The front sealing edge 54 and the front sealing plane 541 are lower than the lower surface of the bottom hard structural member of the front lower frame 83 of the dry filter box 8 .

[0202] It should be noted that The height difference between the front sealing edge 54 and the front sealing plane 541 and the lower surface of the hard structural component at the bottom of the dry filter box 8 is used to arrange the front elastic sealing body 812.

[0203] Further, The side sealing edge 51 and the side sealing plane 511 are lower than the lower surface of the bottom hard structure of the side lower frame 82 of the dry filter box 8 .

[0204] It should be noted that The height difference between the side sealing edge 51 and the side sealing plane 511 and the lower surface of the hard structural component at the bottom of the dry filter box 8 is used to arrange the side elastic sealing body 811.

[0205] Example 10, refer to the attached Figure 2 , Attachment Figure 3 .

[0206] The height of the front sealing edge 54 and the front sealing plane 541 is lower than the lower surface of the bottom hard structural part of the front lower frame 83 of the dry filter box 8, leaving a gap. The purpose is to overlap and compress the redundant high and highly elastic front elastic sealing body 812 during the sliding overlap of the front lower frame 83 and the front sealing edge 54 to seal.

[0207] On the contrary, the height of the side sealing edge 51 and the side sealing plane 511 is lower than the lower surface of the bottom hard structural member of the front lower frame 83 of the dry filter box 8, leaving a gap. The purpose of the design is to overlap and compress the redundant high-elastic side elastic sealing body 811 for sealing.

[0208] The sealing structure 5, combined with the box sealing area 821 of the dry filter box 8, is an extremely critical technology. For the dry filter module with top and bottom ventilation, the weight and load of the dry filter box 8 are all at the bottom. Moreover, during the operation of moving in and out after the dry filter box 8 absorbs paint and gains hundreds of kilograms of weight, it is extremely difficult to ensure smooth passage and tight overlap and sealing of the bottom front of the dry filter box 8.

[0209] To facilitate maintenance, the roller groove 31 and the roller 32 are designed to be detachable, and the front sealing edge 52 and the side sealing edge 51 are multi-connected non-integrated structures. Since the side sealing plate 11 and the front sealing plate 12 are folded several times respectively, a certain dimensional error may occur. It is also very difficult to keep the upper surfaces of the side sealing edge 51 and the front sealing edge 51 consistent in the height direction.

[0210] The dry filter box 8 is generally a wooden frame with a circle of wood around the bottom to connect the whole. The wood is a hard structure, and the load-bearing of the dry filter box 8 falls on the wooden frame, which is rough. The sealing edge structure 5 is made of metal, and the metal is smooth. Both are made of hard materials for sliding connection, and sufficient space must be left, otherwise it will cause a large height difference gap or a small gap to get stuck and be difficult to slide.

[0211] By designing a metal sealing edge structure 5 and overlapping the sealing with the elastic sealing body 81 designed at the bottom of the dry filter box 8, the sealing can be effectively guaranteed. The rough wooden surface is connected to the elastic sealing body 81 with a certain elastic compression space and a fixed flexible characteristic, and converted into sliding compression between the metal and the elastic sealing body 81, so that the sealing effect is good and the sliding is not hindered.

[0212] The sealing surface between the dry filter box 8 and the elastic sealing body 81 and the contact surface between the dry filter box 8 and the roller 32 are designed independently to prevent the elastic sealing body 81 with redundant height from contacting the roller 32 and affecting the smooth passage of the dry filter box 8 on the upper surface of the roller 32.

[0213] Therefore, the bearing, sliding and sealing functions can be realized independently without interfering with each other, thus achieving both sealing and smooth passage. In addition, the sealing surface of the elastic sealing body 81 is designed on the inside, effectively preventing the paint mist from overflowing into the roller groove 31 and adhering to the roller 32 body.

[0214] At the same time, flexible sealing plates extending downward are designed around the bottom of the dry filter box 8 to further prevent paint mist from sticking to the connection between the sealing edge structure 5 and the elastic sealing body 81.

[0215] Further, The sealing structure 5 slides along and seals the elastic sealing body 81 at the bottom of the dry filter box 8; The side sealing edge 51 and the side elastic sealing body 811 of the box sealing area 821 of the side lower frame 82 of the dry filter box 8 overlap and slide to seal; The front sealing edge 54 and the front elastic sealing body 812 of the box bearing sliding area 822 of the front lower frame 83 of the dry filter box 8 overlap and slide to seal; The side elastic sealing body 811 and the front elastic sealing body 812 are provided with redundant heights; The purpose of setting redundant height for the elastic sealing body 81 is to make the seal with the sealing edge structure 5 tighter after being highly compressed by force.

[0216] Example 11: Refer to the attached Figure 2 , a side elastic sealing body 811 is arranged at the bottom of the dry filter box 8; Refer to the attached Figure 3 A front elastic sealing body 812 is arranged at the bottom of the dry filter box 8.

[0217] Further, The side cover plate 11 and the front cover plate 12 are respectively integral structural plates, the main body plates are not spliced ​​together, and have multiple functions.

[0218] Example 12, refer to the attached Figure 1 .

[0219] The side pocket frame 71 with the side sealing edge 51 is connected to the side sealing plate 11 and the roller groove 31 to form an integrated structure, and is detachable for easy maintenance; The side and front cover plates, serving as the enclosure for the ventilation duct, are each made from a single plate. The entire plate requires no welding or connectors, thus avoiding welding deformation, concerns about connector sealing, and risks of connection dimensional errors. The four corners of the side and front sealing plates are fixed with multi-hole connections and then welded to ensure the accuracy of the connection. The side sealing plate can also carry the roller groove and roller, can install and fix multiple guide wheels 41, can connect to the side bag frame and carry the bag filter 75, can overlap and seal with the side elastic sealing body 811 at the bottom of the dry filter box through the side sealing edge of the side bag frame, and be connected and fixed to the frame sealing structure.

[0220] The upper surface of the front sealing plate is designed with a front sealing edge and a bearing plane structure of the front bag frame 72 for installing the bag filter 75. No holes are required on the front of the front sealing plate, and there is no risk of paint mist leakage.

[0221] Further, The side pocket frame with the side sealing edge is connected with the side sealing plate and the roller groove to form an integral structure and is detachable.

[0222] It should be noted that Example 13, refer to the attached Figure 1 .

[0223] The ventilation area of ​​the side cover can be connected to the sliding device and the side bag frame through at least two openings on one side, thereby reducing the openings of the ventilation duct, that is, reducing the risk of paint mist overflowing through the openings.

[0224] Further, The side sealing plate 11 is provided with several openings in sequence along the length direction for installing the guide wheel 41 .

[0225] It should be noted that Example 14, refer to the attached Figure 1 , Attachment Figure 7 .

[0226] Each dry filter box 8 is provided with five guide wheels 41 on both sides. The guide wheels 41 are evenly arranged along the length direction, and the outer edge of the first guide wheel 41 at the entrance end of the dry filter box 8 exceeds the outside of the side sealing plate 11.

[0227] It can be understood that several guide wheels 41 are installed on both sides along the direction of movement of the dry filter box 8 to accurately guide the dry filter box 8 to avoid skewness causing uneven promotion or deviation from the upper air inlet dry filter module, which may easily lead to air leakage.

[0228] The outer surface of the lower side of the dry filter box is in close contact with the guide, and the guide belt is provided with a guide wheel 41, which is installed in several openings of the side cover plate; several guide wheels 41 are arranged equidistantly along the side of the channel where the dry filter box moves; the guide wheel 41 ensures that the dry filter box has no deviation during the front and rear passage, and moves parallel to the upper air inlet dry filter module, ensuring the best sealing effect and smoothest passage of the dry filter box; the arrangement of the first group of guide wheels 41 on both sides of the inlet end of the side cover plate is designed to open outward for a certain distance, and combined with the guidance and precise positioning of the guide edge of the load-bearing frame, it is beneficial for the dry filter box to be unrestricted and smoothly advanced during the initial advancement process.

[0229] Further, It should be noted that Example 15, refer to the attached Figure 8 .

[0230] The bottom of the side sealing plate 11 and the front sealing plate 12 are respectively provided with a folding plate 14 with a certain inclined angle, and the inclined surface of the folding plate 14 overlaps with the air outlet plane below.

[0231] The function of the folding plate is to balance and adjust the errors caused by the double hard connection between the side cover plate and the front cover plate supported by the supporting frame, and the connection between the folding plate and the air outlet through the folding plate; and the welding operation of the inclined surface of the folding plate and the flat surface of the air outlet is simple, the welding effect is good, and the sealing is good.

[0232] Further, The bottom of the side cover plate 11 and the front cover plate 12 is provided with a downward longitudinal plate 15, and the longitudinal plate 15 is provided with an inward extension surface 16 for overlapping with the air outlet below; Schematic diagram of the cross section of the sealing plate, the sealing plate is provided with a lower longitudinal plate 15 and a downward and inward extending surface 16.

[0233] It should be noted that Example 16, refer to the attached Figure 9 .

[0234] The supporting frame 2 and the supporting cover plate 1 have a first contact surface in the height direction, and the folding plate 14 and the lower air outlet have a second contact surface. If there is a height error between the two overlapping surfaces, the following problems are likely to occur.

[0235] There is a gap in the overlapping surface of the sealing plate 1 and the supporting frame 2, which causes the supporting frame 2 to be unable to bear the entire force or partially bear the force, and the folding plate 14 falls directly on the lower air outlet. The lower air outlet is passively subjected to force, while the supporting frame 2 is not subjected to force. The lower air outlet is originally a ventilation duct and does not have sufficient strength to support the overall dry filter module, which easily leads to deformation and air leakage after being subjected to force.

[0236] Alternatively, the sealing plate 1 falls completely on the supporting frame 2, and the folding plate 14 is connected to the air outlet below by a hard part. There will be a gap in the connection between the two, which makes welding difficult and easily leads to air leakage.

[0237] In addition, no matter which error, it may cause individual errors and overall errors between the upper air inlet and lower air outlet dry filter modules and the dry filter box, which will affect the sealing.

[0238] The design of the two connection methods is based on the load-bearing skeleton of the dry filter module and the structural form and connection method adopted by the ground, platform, air duct, etc. The ultimate design goal is to ensure that the absolute positioning of the dry filter module is more accurate, the connection error is minimized, and the sealing is optimal.

Claims

1. A bottom-outlet dry filter module and sealing structure for top and bottom ventilation, characterized in that: include: Sealing plate (1), supporting frame (2), sliding device (3), guide (4), sealing edge structure (5), bag filter frame (7); The sealing plate (1) comprises a side sealing plate (11) and a front sealing plate (12); The sealing edge structure (5) includes a side sealing edge (51) and a front sealing edge (54); The side sealing edge (51) is arranged in the sealing area (52) and overlaps and seals with the elastic sealing body (81) of the dry filter box (8); The sliding device (3) is arranged in the load-bearing sliding area (53), and carries and drives the dry filter box (8) to slide; The lower air outlet dry filter module (200) supports the dry filter box (8) from below, and the upper air inlet dry filter module (100) limits the dry filter box (8) from above, and is aligned with the center of the dry filter box (8), ensuring that the dry filter box (8) can move in and out and slide smoothly, and at the same time, the connection is tightly sealed.

2. A bottom-outlet dry-type filter module and sealing structure for top-bottom ventilation according to claim 1, characterized in that: The side sealing plate (11) carries the sliding device (3); The sliding device (3) comprises a roller groove (31) and a roller (32); The roller (32) carries and drives the dry filter box (8) to slide.

3. The bottom-outlet dry-type filter module and sealing structure for top-bottom ventilation according to claim 1, characterized in that: The side sealing plate (11) is provided with the side sealing edge (51); or / and: The bag filter frame (7) connected to the side sealing plate (11) is provided with the side sealing edge (51).

4. The bottom-outlet dry-type filter module and sealing structure for top-bottom ventilation according to claim 1, characterized in that: The side sealing edge (51) has a side sealing plane (511) on its upper surface; Both sides of the side sealing plane (511) are integrally connected to downward or obliquely downward side extension surfaces (512).

5. The bottom-outlet dry-type filter module and sealing structure for top-bottom ventilation according to claim 1, characterized in that: The bag filter frame (7) includes a side bag frame (71) and a front bag frame (72); The side pocket frame (71) and the front pocket frame (72) are respectively provided with a plane structure (74), and the plane structures (74) have the same horizontal height; The side pocket frame (71) and the front pocket frame (72) are designed independently; or / and: The side pocket frame (71) and the front pocket frame (72) are directly integrated on the side sealing plate (11) and the front sealing plate (12), respectively.

6. The bottom-outlet dry-type filter module and sealing structure for top-bottom ventilation according to claim 1, characterized in that: Each of the side sealing plates (11) with the side sealing edge (51) is divided into two functional areas in a plane with the forward direction of the dry filter box (8) as the center, including a sealing area (52) and a load-bearing sliding area (53); or / and: Each of the bag filter frames (7) with the side sealing edge (51) is divided into two functional areas in a plane with the forward direction of the dry filter box (8) as the center, including a sealing area (52) and a load-bearing sliding area (53).

7. The bottom-outlet dry-type filter module and sealing structure for top-bottom ventilation according to claim 6, characterized in that: The sealing area (52) is close to the inner side of the dry filter box (8); The load-bearing sliding area (53) is close to the outside of the dry filter box (8); The upper surface of the sliding device (3) is higher than the upper surfaces of the side sealing edge (51) and the front sealing edge (54).

8. The bottom-outlet dry-type filter module and sealing structure for top-bottom ventilation according to claim 1, characterized in that: The dry filter box (8) includes an elastic sealing body (81); The elastic sealing body (81) comprises a side elastic sealing body (811) and a front elastic sealing body (812); The dry filter box (8) comprises a side lower frame (82) and a front lower frame (83); The side lower frame (82) is connected to the side elastic sealing body (811); The front lower frame (83) is connected to the front elastic sealing body (812); The side lower frame (82) of the dry filter box (8) is centered on the forward direction of the dry filter box (8), with a box sealing area (821) arranged inwardly and a box bearing sliding area (822) arranged outwardly.

9. The bottom-outlet dry-type filter module and sealing structure for top-bottom ventilation according to claim 8, characterized in that: The side sealing edge (51) slides and seals with the side elastic sealing body (811) of the box sealing area (821); The front sealing edge (54) overlaps and slides with the front elastic sealing body (812) of the front lower frame (83) to seal; The side elastic sealing body (811) and the front elastic sealing body (812) are provided with redundant heights.

10. The bottom-outlet dry-type filter module and sealing structure for top-bottom ventilation according to claim 1, characterized in that: The front sealing plate (12) is provided with a front sealing edge (54); The front sealing edge (54) includes a front sealing plane (541), a front extension surface (542), and a longitudinal surface (543); The front sealing edge (54) is provided with the front sealing plane (541) on the top; The front sealing plane (541) is integrally connected to the front extension surface (542) extending outward and downward.

11. The bottom-outlet dry-type filter module and sealing structure for top-bottom ventilation according to claim 10, characterized in that: The front extension surface (542) is further connected to a longitudinal surface (543) directed downward or obliquely downward; The front extension surface (542) is designed with an inclined surface or an arc surface; The connection point between the front extension surface (542) and the front sealing plane (541) is higher than the connection point with the longitudinal surface (543).

12. The bottom-outlet dry-type filter module and sealing structure for top-bottom ventilation according to claim 10, characterized in that: The front sealing edge (54) and the front sealing plane (541) are lower than the lower surface of the bottom hard structural member of the front lower frame (83) of the dry filter box (8).

13. The bottom-outlet dry-type filter module and sealing structure for top-bottom ventilation according to claim 4, characterized in that: The side sealing edge (51) and the side sealing plane (511) are lower than the lower surface of the bottom hard structural member of the side lower frame (82) of the dry filter box (8).

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