Autoclaved fly ash green brick drying device

Abstract

The utility model relates to the technical field of autoclaved fly ash green brick drying, and discloses an autoclaved fly ash green brick drying device which comprises a drying box and a cooling box, a filter cartridge is fixedly arranged at one end, close to the cooling box, of an exhaust pipe, a filter element is embedded in the filter cartridge, a spiral copper pipe is installed in the cooling box, and the spiral copper pipe is fixedly connected with the drying box. According to the waste gas cooling device, impurities contained in waste gas are filtered and intercepted through the filter element firstly, then the waste gas enters the spiral copper pipe in the cooling box, cooling water is driven by the circulating pump to surround the spiral copper pipe, the cooling water is cooled through the cooling water, and the waste gas is cooled through the cooling water. The heated cooling water can flow into the cooler to be cooled, then flows back into the cooling box to be recycled and is conveyed and distributed into the multiple sets of U-shaped hot air pipes through the air distribution pipes, hot air flow is jetted out in multiple directions, it is guaranteed that all the surfaces of each brick can make contact with hot air in cooperation with the multiple layers of trays, drying dead corners are avoided, and the drying efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of drying technology for autoclaved fly ash brick blanks, and in particular to a drying device for autoclaved fly ash brick blanks. Background Technology

[0002] Autoclaved fly ash bricks are made primarily from fly ash, lime, or cement, with the addition of appropriate amounts of gypsum and aggregates. The mixture is prepared, pressed into shape, and cured under high pressure, normal pressure, or naturally. They are simply called fly ash bricks.

[0003] An existing drying device for processing autoclaved fly ash bricks (Announcement No.: CN221484088U) uses a brick carrier plate to centrally support the autoclaved fly ash bricks while ensuring that all bricks on the plate are dried by the exhaust pipes with minimal temperature difference, thus greatly improving the forming effect of the autoclaved fly ash bricks. However, during the drying process, the hot air easily diffuses outward, which can burn nearby workers, hinder loading and unloading operations, and the dust particles carried by the high-temperature gas can also damage the respiratory tract and skin of personnel, posing a serious safety hazard. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a drying device for autoclaved fly ash brick blanks.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A drying device for autoclaved fly ash brick blanks includes a drying chamber and a cooling chamber. A fixed frame is fixedly installed inside the drying chamber, and a tray is movably mounted on the fixed frame. An exhaust pipe is fixedly installed on the top of the drying chamber. A filter cartridge is fixedly installed at one end of the exhaust pipe near the cooling chamber, and a filter element is embedded in the filter cartridge. A spiral copper tube is installed inside the cooling chamber. A return pipe is provided outside the cooling chamber. A cooler is installed in the middle section of the return pipe by fasteners. An air distribution pipe is fixedly installed inside the drying chamber, and a hot air pipe is fixedly installed on the air distribution pipe.

[0007] As a further embodiment of this utility model, a viewing door is installed on the drying oven via a hinge, and a fan is installed on the side of the drying oven away from the viewing door. The two ends of the spiral copper tube respectively penetrate and connect the top of the cooling box and the side wall of the cooling box.

[0008] As a further embodiment of this utility model, the fan is fixedly provided with an air outlet main pipe, and the end of the air outlet main pipe away from the fan is fixedly connected to the air distribution pipe and passes through and connects to the side wall of the drying box.

[0009] As a further embodiment of this utility model, the hot air pipes are distributed at equal intervals on the air distribution pipes, and a connecting pipe is fixedly provided between the bottom of the filter cartridge and the spiral copper pipe.

[0010] As a further embodiment of this utility model, a circulation pump is installed on the return pipe by fasteners, and an electric heating wire is installed in the main air outlet pipe by fasteners.

[0011] As a further embodiment of this utility model, the trays are distributed at equal intervals on the fixed frame, and the two ends of the return pipe are respectively fixedly connected to the side wall and the bottom of the cooling box.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In use, the system is equipped with a return pipe, filter element, spiral copper tube, cooling box, exhaust pipe, and filter cartridge. When the exhaust gas is transported to the filter cartridge through the exhaust pipe, the filter element first filters and intercepts the impurities contained in the exhaust gas, preventing particulate impurities from directly entering the cooling box or being directly emitted into the atmosphere, thus improving safety. Subsequently, the exhaust gas enters the spiral copper tube in the cooling box, where a circulating pump drives cooling water to circulate around the spiral copper tube, thereby quickly absorbing the heat of the exhaust gas. The heated cooling water can flow into the cooler to cool down and then flow back to the cooling box for recycling, reducing water consumption. By filtering and cooling the exhaust gas before it is discharged, the safety of the staff can be ensured, while reducing environmental pollution. By setting up trays, hot air ducts, distribution ducts, and fans, when the fan is started, the air is heated by electric heating wires to form a hot airflow, which is transmitted and distributed to multiple sets of U-shaped hot air ducts through the distribution ducts. The hot airflow is sprayed out from multiple directions, and with the multi-layer trays, it is ensured that all surfaces of each brick can contact the hot air, avoiding drying dead corners and improving drying efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of an autoclaved fly ash brick blank drying device proposed in this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of an autoclaved fly ash brick blank drying device proposed in this utility model;

[0016] Figure 3 This is a cross-sectional structural diagram of the cooling box of the autoclaved fly ash brick blank drying device proposed in this utility model;

[0017] Figure 4This is a schematic diagram of the disassembled structure of the hot air pipe and tray of the autoclaved fly ash brick blank drying device proposed in this utility model;

[0018] In the diagram: 1. Drying oven; 101. Viewing door; 102. Return pipe; 103. Tray; 104. Fixing frame; 105. Filter element; 106. Spiral copper pipe; 2. Cooling box; 201. Main exhaust pipe; 202. Electric heating wire; 203. Hot air pipe; 3. Exhaust pipe; 301. Filter cartridge; 302. Circulation pump; 303. Distributor duct; 4. Fan; 5. Connecting pipe; 6. Cooler. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Reference Figures 1-4 A drying device for autoclaved fly ash brick blanks includes a drying chamber 1 and a cooling chamber 2. A fixed frame 104 is fixedly installed inside the drying chamber 1, and a tray 103 is movably installed on the fixed frame 104. An exhaust pipe 3 is fixedly installed on the top of the drying chamber 1. A filter cartridge 301 is fixedly installed at one end of the exhaust pipe 3 near the cooling chamber 2. A filter element 105 is embedded in the filter cartridge 301. A spiral copper tube 106 is installed inside the cooling chamber 2. A return pipe 102 is provided outside the cooling chamber 2. A cooler 6 is installed in the middle section of the return pipe 102 by fasteners. An air distribution pipe 303 is fixedly installed inside the drying chamber 1, and a hot air pipe 203 is fixedly installed on the air distribution pipe 303.

[0023] During use, the autoclaved fly ash bricks are neatly placed on each set of trays 103. The fan 4 is started, and the electric heating wire 202 is connected to the power supply. Under the action of the fan 4, the air flows through the main air outlet 201 and is heated by the electric heating wire 202. The hot air is distributed to each set of hot air pipes 203 through the air distribution pipe 303. Finally, the hot air is sprayed out through several spray holes and blown evenly onto the surface of the bricks from different directions, achieving efficient and uniform drying. The high-temperature exhaust gas generated during the drying process can be discharged from the top exhaust port of the drying chamber 1 and then enter the exhaust pipe 3. First, it passes through the filter element 105 to filter dust and impurities, and then enters the spiral copper tube 106 in the cooling chamber 2. The circulating pump 302 drives the cooling water to circulate around the spiral copper tube 106, thereby quickly absorbing the heat of the exhaust gas. The heated cooling water can flow into the cooler 6 to cool down and then flow back into the cooling chamber 2 for recycling, reducing water consumption. By filtering and cooling the exhaust gas before it is discharged, the safety of the staff can be ensured, and environmental pollution can be reduced.

[0024] In this embodiment, a viewing door 101 is installed on the drying oven 1 via a hinge, and a fan 4 is installed on the side of the drying oven 1 away from the viewing door 101. The two ends of the spiral copper pipe 106 pass through and connect the top of the cooling box 2 and the side wall of the cooling box 2, respectively.

[0025] When in use, the hot air pipe 203 is U-shaped. Through multiple sets of hot air pipes 203, hot air is evenly sprayed out from multiple directions, thereby covering all surfaces of the brick, improving the contact efficiency between hot air and the brick, and achieving a more uniform and efficient drying effect.

[0026] In this embodiment, the blower 4 is fixedly provided with an air outlet main pipe 201. The end of the air outlet main pipe 201 away from the blower 4 is fixedly connected to the air distribution pipe 303 and passes through and connects to the side wall of the drying box 1.

[0027] During use, each tray 103 has several through holes, which helps to accelerate the air flow between brick layers and improve the overall drying uniformity and efficiency.

[0028] In this embodiment, the hot air ducts 203 are evenly distributed on the air distribution duct 303, and a connecting pipe 5 is fixedly provided between the bottom of the filter cartridge 301 and the spiral copper tube 106.

[0029] When in use, the visible door 101 is made of high-temperature resistant transparent material, which makes it easy for staff to observe the drying status of the bricks inside the drying oven 1 in real time, while ensuring operational safety and reducing the contact between operators and high-temperature environments.

[0030] In this embodiment, a circulation pump 302 is installed on the return pipe 102 by fasteners, and an electric heating wire 202 is installed in the air outlet pipe 201 by fasteners.

[0031] During use, the filter element 105 intercepts fly ash, dust particles and sticky impurities in the exhaust gas, preventing them from entering the cooling box 2 or being directly discharged into the atmosphere, thus reducing blockage of the subsequent water circulation system and pollution to the environment.

[0032] In this embodiment, the trays 103 are evenly distributed on the fixing frame 104, and the two ends of the return pipe 102 are fixedly connected to the side wall and bottom of the cooling box 2, respectively.

[0033] When in use, the spiral copper tube 106 increases the contact time and area between the exhaust gas and the cooling water, which is conducive to quickly removing heat. Since the fixed frame 104 is equipped with a corresponding slide rail, the bottom of the tray 103 is slidably connected to the slide rail, so it can be pulled out along the slide rail direction, which is convenient for quick loading and unloading of autoclaved fly ash bricks, improving the convenience of operation and production efficiency.

[0034] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: In use, open the viewing door 101, neatly place the autoclaved fly ash bricks on each set of trays 103, and after loading, close the viewing door 101 to ensure the drying chamber 1 is sealed to prevent heat loss. Start the fan 4 and connect the electric heating wire 202 to the power supply. Air is heated by the fan 4 as it flows through the exhaust pipe 201 and passes through the electric heating wire 202. The hot air is then distributed through the air distribution pipe 303 to each set of hot air pipes 203. Finally, the hot air is sprayed out through several spray holes, evenly blowing onto the brick surface from different directions, achieving efficient and uniform drying. The high-temperature exhaust gas generated during the drying process can be discharged from the exhaust port at the top of the drying chamber 1. The exhaust gas then enters the exhaust pipe 3, where it first passes through the filter element 105 to filter dust and impurities. It then enters the spiral copper tube 106 inside the cooling box 2. The circulating pump 302 on the cooling box 2 drives the cooling water to flow, surrounding the spiral copper tube 106 and absorbing heat from the exhaust gas to cool it down. Simultaneously, the hot water, after absorbing heat, is extracted, cooled by the cooler 6, and then returned to the cooling box 2 via the return pipe 102, forming a closed loop that continuously cools the exhaust gas inside the spiral copper tube 106. Once the bricks meet the drying requirements, the electric heating wire 202 and the fan 4 are turned off, the visible door 101 is opened, and the tray 103 is removed from the fixed frame 104. After unloading the dried autoclaved fly ash bricks, the next round of drying operations can be prepared, shortening the operation time.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A drying device for autoclaved fly ash brick blanks, comprising a drying chamber (1) and a cooling chamber (2), characterized in that: The drying oven (1) is fixedly provided with a fixed frame (104), and a tray (103) is movably provided on the fixed frame (104). The top of the drying oven (1) is fixedly provided with an exhaust pipe (3), and a filter cartridge (301) is fixedly provided at one end of the exhaust pipe (3) near the cooling box (2). A filter element (105) is embedded in the filter cartridge (301). A spiral copper tube (106) is installed inside the cooling box (2). A return pipe (102) is provided outside the cooling box (2). A cooler (6) is installed in the middle section of the return pipe (102) by fasteners. An air distribution pipe (303) is fixedly installed inside the drying oven (1), and a hot air pipe (203) is fixedly provided on the air distribution pipe (303).

2. The autoclaved fly ash brick blank drying device according to claim 1, characterized in that, The drying box (1) is fitted with a viewing door (101) via a hinge. A fan (4) is installed on the side of the drying box (1) away from the viewing door (101). The two ends of the spiral copper tube (106) are respectively connected to the top of the cooling box (2) and the side wall of the cooling box (2).

3. The autoclaved fly ash brick blank drying device according to claim 2, characterized in that, The fan (4) is fixedly provided with an air outlet pipe (201), and the end of the air outlet pipe (201) away from the fan (4) is fixedly connected to the air distribution pipe (303) and passes through the side wall of the drying box (1).

4. The autoclaved fly ash brick blank drying device according to claim 1, characterized in that, The hot air pipes (203) are evenly distributed on the air distribution pipes (303), and a connecting pipe (5) is fixedly provided between the bottom of the filter cartridge (301) and the spiral copper pipe (106).

5. The autoclaved fly ash brick blank drying device according to claim 3, characterized in that, A circulation pump (302) is installed on the return pipe (102) by fasteners, and an electric heating wire (202) is installed in the air outlet pipe (201) by fasteners.

6. The autoclaved fly ash brick blank drying device according to claim 2, characterized in that, The trays (103) are evenly distributed on the fixed frame (104), and the two ends of the return pipe (102) are fixedly connected to the side wall and bottom of the cooling box (2) respectively.

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