Drying room for steel plate pretreatment
By employing a uniformly distributed exhaust duct and heating system in the drying chamber for steel plate pretreatment, and combining it with a filtration mechanism of HEPA and activated carbon filters, the problems of uneven hot air and unfiltered exhaust gas were solved, thereby improving the quality and environmental performance of the steel plates.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU SHANGTENG ENVIRONMENTAL PROTECTION EQUIPMENT CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-05-12
AI Technical Summary
The existing drying room for steel plate pretreatment has uneven hot air circulation, which leads to inconsistent drying of the steel plate surface, which may cause deformation or cracking. In addition, the exhaust gas is discharged directly without effective filtration, polluting the environment.
The design incorporates a uniformly distributed exhaust duct and heating system, along with a filtration mechanism that combines HEPA and activated carbon filters to ensure that hot air evenly covers the steel plate surface and filters impurities and harmful substances from the exhaust gas.
It achieves consistent surface dryness of steel plates, reduces the risk of deformation and cracking, and effectively purifies exhaust gas, reducing environmental pollution.
Smart Images

Figure CN224230596U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel plate pretreatment, and more specifically, to a drying room for steel plate pretreatment. Background Technology
[0002] In the steel plate processing and manufacturing process, the pretreatment stage plays a crucial role in ensuring the quality and performance of the final steel plate product. Steel plate pretreatment typically includes a series of processes such as rust removal, degreasing, and phosphating. These processes effectively improve the surface condition of the steel plate, enhancing its corrosion resistance and coating adhesion. Drying, as a key step in the steel plate pretreatment process, can quickly and effectively remove moisture and treatment solutions from the steel plate surface, ensuring the dryness of the steel plate surface.
[0003] The existing drying rooms for steel plate pretreatment still have the following defects when in use:
[0004] The existing hot air circulation design in the drying room is unreasonable, resulting in the hot air not being evenly distributed to all parts of the steel plate. Some areas may be over-dried due to concentrated hot air, while other areas may not be thoroughly dried due to insufficient hot air. The uneven drying effect will cause the surface of the steel plate to be inconsistent in terms of dryness, affecting the quality of subsequent processing steps, and may even lead to problems such as deformation and cracking of the steel plate.
[0005] Furthermore, existing drying rooms lack effective filtration of exhaust gases during the drying process. During the drying operation, exhaust gases containing a large amount of moisture, impurities, and harmful substances are generated. These exhaust gases are directly discharged into the atmosphere, which will undoubtedly cause serious pollution to the environment.
[0006] Therefore, we have made improvements to this by proposing a drying room for steel plate pretreatment. Utility Model Content
[0007] To address the shortcomings of existing technologies, this utility model provides a drying room for steel plate pretreatment, which solves the problems mentioned in the background art.
[0008] To achieve the above-mentioned objectives, this utility model provides the following technical solution:
[0009] A drying room for steel plate pretreatment is used to solve the above problems.
[0010] The application is as follows:
[0011] The equipment includes a drying chamber body, a conveying assembly installed inside the drying chamber body, a drying mechanism installed inside the drying chamber body, a fan fixedly installed on the top of the drying chamber body, an air outlet fixedly installed on the upper surface of the drying chamber body above the fan, and a filter mechanism installed on the upper surface of the air outlet.
[0012] The drying mechanism includes a fixed box, and there are two fixed boxes. The two fixed boxes are fixedly installed on the upper surface of the drying chamber body, and an air inlet is opened on one side surface of the fixed box. An exhaust fan is fixedly installed on the upper surface of the fixed box, and an exhaust pipe is fixedly connected to one side surface of the exhaust fan. The other end of the exhaust pipe extends into the interior of the drying chamber body.
[0013] As a preferred technical solution of this application, one end of the exhaust pipe on one side is located on the upper side of the conveying component, and the other end of the exhaust pipe on the other side is located on the lower side of the conveying component. The lower surface of the upper exhaust pipe and the upper surface of the lower exhaust pipe are evenly provided with a plurality of exhaust ports.
[0014] As a preferred technical solution of this application, a fixing plate is fixedly installed inside the fixing box, and a heat generator is fixedly installed on one side surface of the fixing plate, and a number of heating tubes are fixedly installed on the other side surface of the fixing plate, and the heat generator is connected to the heating tubes.
[0015] As a preferred technical solution of this application, two inclined baffles are fixedly installed inside the fixed box on the lower side of the heating tube, and the two baffles are inclined relative to each other. A filter screen is provided between the two baffles and the filter screen is fixedly installed inside the fixed box.
[0016] As a preferred technical solution of this application, the filtration mechanism includes a filter cylinder, which is bolted to the upper side of the air outlet. A fixing ring is fixedly installed inside the filter cylinder, and a connecting cylinder is provided inside the fixing ring. A HEPA filter and an activated carbon filter are fixedly installed inside the connecting cylinder.
[0017] As a preferred technical solution of this application, a sealing ring is fixedly installed on the inner wall of the fixing ring, and the connecting cylinder and the fixing ring are tightly engaged and connected by the sealing ring.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] In the scheme of this application:
[0020] 1. The drying mechanism utilizes two fixed boxes and an upper exhaust fan to deliver hot air to the upper and lower sides of the conveying assembly via exhaust ducts. Several evenly spaced exhaust vents on the exhaust ducts ensure that the hot air covers the steel plate surface comprehensively and evenly. This prevents over-drying due to concentrated hot air in some areas and incomplete drying due to insufficient hot air in others. This ensures consistent drying of the steel plate surface, effectively reducing the probability of deformation and cracking caused by uneven drying, thereby improving the overall quality and efficiency of steel plate pretreatment.
[0021] 2. Through the use of the filtration mechanism, the filter cartridge is bolted to the upper side of the air outlet, and a HEPA filter and an activated carbon filter are installed inside it in sequence. When the exhaust gas generated during the drying process is discharged by the fan, it will first pass through the filter cartridge. The HEPA filter can effectively filter out the small particles and impurities in the exhaust gas, while the activated carbon filter can adsorb the harmful gases in the exhaust gas. This allows the exhaust gas to be effectively filtered and purified before being discharged, avoiding the direct discharge of exhaust gas containing a large amount of moisture, impurities and harmful substances into the atmosphere, thus reducing environmental pollution. Attached Figure Description
[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0023] Figure 2 This is a three-dimensional structural diagram of the interior of the drying room body of this utility model;
[0024] Figure 3 This is a schematic cross-sectional view of the test results of this utility model;
[0025] Figure 4 This is a schematic diagram of the exhaust pipe and exhaust port of this utility model;
[0026] Figure 5 This is a three-dimensional structural diagram of the internal structure of the fixing box of this utility model;
[0027] Figure 6 This is a three-dimensional structural diagram of the filter cartridge of this utility model;
[0028] Figure 7 This is a structural schematic diagram of the cross-section of the filter cartridge of this utility model.
[0029] The image shows:
[0030] 1. Drying chamber body; 2. Conveying assembly; 3. Drying mechanism; 301. Fixing box; 302. Air inlet; 303. Exhaust fan; 304. Exhaust duct; 305. Exhaust port; 306. Fixing plate; 307. Heat generator; 308. Heating element; 309. Baffle; 310. Filter screen; 4. Fan; 5. Air outlet; 6. Filtering mechanism; 601. Filter cartridge; 602. Fixing ring; 603. Connecting cylinder; 604. HEPA filter; 605. Activated carbon filter; 606. Sealing ring. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described examples are only some embodiments of this utility model, and not all embodiments.
[0032] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0033] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0035] In the description of this utility model, it should be noted that the terms "upper" and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0036] To address the technical problems in the background section, the following drying chamber for steel plate pretreatment is provided:
[0037] Combination Figure 1 - Figure 7 As shown, the present invention provides a drying chamber for steel plate pretreatment, including a drying chamber body 1, a conveying assembly 2 installed inside the drying chamber body 1, and a drying mechanism 3 installed inside the drying chamber body 1. A fan 4 is fixedly installed on the top of the drying chamber body 1, and an air outlet 5 is fixedly installed on the upper surface of the drying chamber body 1 above the fan 4. A filter mechanism 6 is provided on the upper surface of the air outlet 5. The drying mechanism 3 includes a fixed box 301, and there are two fixed boxes 301. The two fixed boxes 301 are fixedly installed on the upper surface of the drying chamber body 1, and an air inlet 302 is opened on one side surface of the fixed box 301. An exhaust fan 303 is fixedly installed on the upper surface of the fixed box 301, and an exhaust pipe 304 is fixedly connected to one side surface of the exhaust fan 303. The other end of the exhaust pipe 304 extends into the interior of the drying chamber body 1.
[0038] In this embodiment: the internal conveying component 2 of the drying chamber body 1 facilitates the continuous conveying and processing of steel plates; the two fixed boxes 301 in the drying mechanism 3 are firmly installed on the upper surface of the drying chamber body 1, and the air inlet 302 on one side can effectively introduce external air. When the exhaust fan 303 on the upper surface of the fixed box 301 is running, the processed hot air is delivered to the interior of the drying chamber body 1 through the exhaust pipe 304 to achieve uniform drying of the steel plates; at the same time, the fan 4 on the top of the drying chamber body 1 and the air outlet 5 on the upper surface cooperate with each other to form a ventilation path, which can discharge the waste gas generated during the drying process. The filter mechanism 6 set on the air outlet 5 can treat the waste gas and avoid causing environmental pollution.
[0039] refer to Figure 2 - Figure 4 Based on the above embodiments, in order to achieve uniform drying of the steel plate surface, this embodiment provides the following design:
[0040] In a preferred embodiment, one end of the exhaust pipe 304 is located on the upper side of the conveying assembly 2, and the other end of the exhaust pipe 304 is located on the lower side of the conveying assembly 2. A plurality of exhaust ports 305 are evenly provided on the lower surface of the upper exhaust pipe 304 and the upper surface of the lower exhaust pipe 304.
[0041] In this embodiment, the symmetrical arrangement of the two exhaust pipes 304 allows hot air to act simultaneously from both the top and bottom of the steel plate. The numerous exhaust ports 305 evenly distributed on the lower surface of the upper exhaust pipe 304 and the upper surface of the lower exhaust pipe 304 allow hot air to be blown onto the surface of the steel plate in a uniform and dispersed manner. This ensures that both the upper and lower surfaces of the steel plate receive a sufficient and uniform supply of hot air, effectively avoiding the problem of uneven drying in certain areas and greatly improving the quality and efficiency of steel plate drying.
[0042] refer to Figure 5 Based on the above embodiments, in order to heat the air inside the fixing box 301 to facilitate the drying of the steel plate, this embodiment provides the following design:
[0043] In a preferred embodiment, a fixing plate 306 is fixedly installed inside the fixing box 301, and a heat generator 307 is fixedly installed on one side surface of the fixing plate 306, and a plurality of heating tubes 308 are fixedly installed on the other side surface of the fixing plate 306, and the heat generator 307 is connected to the heating tubes 308.
[0044] In this embodiment: a heat generator 307 is fixedly installed on one side surface of the fixing plate 306, while several heating tubes 308 are fixedly installed on the other side surface of the fixing plate 306. The heat generator 307 serves as the core of the heat source, enabling the heating tubes 308 to generate a large amount of heat energy quickly and efficiently, allowing the heating tubes 308 to reach a high temperature in a short time. The heat energy is then evenly distributed into the drying chamber body 1 through the exhaust fan 303 and the exhaust pipe 304, providing a stable and efficient heat energy supply for the drying of steel plates and effectively improving the drying efficiency.
[0045] refer to Figure 5 Based on the above embodiments, in order to filter impurities in the outside air, this embodiment provides the following design:
[0046] In a preferred embodiment, two inclined baffles 309 are fixedly installed inside the fixed box 301 on the lower side of the heating tube 308, and the two baffles 309 are inclined relative to each other. A filter screen 310 is provided between the two baffles 309, and the filter screen 310 is fixedly installed inside the fixed box 301.
[0047] In this embodiment: two inclined baffles 309 are fixedly installed on the lower side of the heating tube 308, and a filter screen 310 is provided between the two baffles 309. When outside air is drawn into the fixed box 301, it passes through the inclined baffles 309, which can guide the airflow direction and initially block some larger impurities. Subsequently, the air passes through the filter screen 310, which can further filter out smaller particles and impurities in the air, thereby ensuring the cleanliness of the air entering the drying chamber body 1 and effectively preventing impurities from damaging the heating tube 308 and other equipment.
[0048] refer to Figure 1 - Figure 7 Based on the above embodiments, in order to treat the waste gas generated during the drying process, this embodiment provides the following design:
[0049] In a preferred embodiment, the filtration mechanism 6 includes a filter cylinder 601, which is bolted to the upper side of the air outlet 5. A fixing ring 602 is fixedly installed inside the filter cylinder 601, and a connecting cylinder 603 is provided inside the fixing ring 602. A HEPA filter 604 and an activated carbon filter 605 are fixedly installed inside the connecting cylinder 603.
[0050] In this embodiment: the filter cartridge 601 is securely installed on the upper side of the air outlet 5 by bolt connection, which facilitates subsequent disassembly and maintenance; inside the filter cartridge 601, the fixing ring 602 plays a supporting and positioning role, and the connecting cylinder 603 is fixedly installed with a HEPA filter 604 and an activated carbon filter 605. The HEPA filter 604 can efficiently filter the small particles in the exhaust gas, such as dust and impurities, while the activated carbon filter 605, with its strong adsorption capacity, can effectively adsorb harmful gases in the exhaust gas, such as volatile organic compounds. Through the synergistic effect of these two filter layers, the exhaust gas generated during the drying process can be fully purified before being discharged, greatly reducing environmental pollution.
[0051] refer to Figure 7 Based on the above embodiments, in order to improve the sealing performance between the connecting cylinder 603 and the filter cylinder 601, this embodiment provides the following design:
[0052] In a preferred embodiment, a sealing ring 606 is fixedly installed on the inner wall of the fixing ring 602, and the connecting cylinder 603 and the fixing ring 602 are tightly engaged and connected by the sealing ring 606.
[0053] In this embodiment, a sealing ring 606 is fixedly installed on the inner wall of the fixing ring 602. The sealing ring 606 is made of rubber and has good elasticity and sealing performance. When the connecting cylinder 603 is connected to the fixing ring 602, the sealing ring 606 can fit tightly between the outer wall of the connecting cylinder 603 and the inner wall of the fixing ring 602, forming a sealing barrier. This effectively prevents the leakage of exhaust gas between the connecting cylinder 603 and the filter cylinder 601, ensuring that the exhaust gas can be completely purified by the HEPA filter 604 and the activated carbon filter 605 before being discharged.
[0054] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0055] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.
Claims
1. A drying chamber for steel plate pretreatment, comprising a drying chamber body (1), characterized in that: The drying chamber body (1) is equipped with a conveying component (2) and a drying mechanism (3) is provided inside the drying chamber body (1). A fan (4) is fixedly installed on the top of the drying chamber body (1), and an air outlet (5) is fixedly installed on the upper surface of the drying chamber body (1) above the fan (4). A filter mechanism (6) is provided on the upper surface of the air outlet (5). The drying mechanism (3) includes a fixed box (301), and there are two fixed boxes (301). The two fixed boxes (301) are fixedly installed on the upper surface of the drying chamber body (1). An air inlet (302) is opened on one side surface of the fixed box (301). An exhaust fan (303) is fixedly installed on the upper surface of the fixed box (301). An exhaust pipe (304) is fixedly connected to one side surface of the exhaust fan (303). The other end of the exhaust pipe (304) extends into the interior of the drying chamber body (1).
2. The drying chamber for steel plate pretreatment according to claim 1, characterized in that: One end of the exhaust pipe (304) on one side is located on the upper side of the conveying assembly (2), and the other end of the exhaust pipe (304) on the other side is located on the lower side of the conveying assembly (2). The lower surface of the upper exhaust pipe (304) and the upper surface of the lower exhaust pipe (304) are evenly provided with a plurality of exhaust ports (305).
3. The drying chamber for steel plate pretreatment according to claim 1, characterized in that: A fixing plate (306) is fixedly installed inside the fixing box (301), and a heat generator (307) is fixedly installed on one side surface of the fixing plate (306). Several heating tubes (308) are fixedly installed on the other side surface of the fixing plate (306), and the heat generator (307) is connected to the heating tubes (308).
4. A drying chamber for steel plate pretreatment according to claim 3, characterized in that: Inside the fixed box (301), two inclined baffles (309) are fixedly installed below the heating tube (308), and the two baffles (309) are inclined relative to each other. A filter screen (310) is provided between the two baffles (309), and the filter screen (310) is fixedly installed inside the fixed box (301).
5. A drying chamber for steel plate pretreatment according to claim 1, characterized in that: The filtration mechanism (6) includes a filter cylinder (601), which is bolted to the upper side of the air outlet (5). A fixing ring (602) is fixedly installed inside the filter cylinder (601), and a connecting cylinder (603) is provided inside the fixing ring (602). A HEPA filter (604) and an activated carbon filter (605) are fixedly installed inside the connecting cylinder (603).
6. A drying chamber for steel plate pretreatment according to claim 5, characterized in that: A sealing ring (606) is fixedly installed on the inner wall of the fixing ring (602), and the connecting cylinder (603) and the fixing ring (602) are tightly engaged and connected by the sealing ring (606).