Fiber toughening non-metal sound barrier curing kiln

Abstract

The utility model discloses a fiber toughening nonmetal sound barrier curing kiln which comprises a kiln body, the kiln body is provided with a kiln door, an inner cavity of the kiln body is provided with a curing portion and a heating portion, the heating portion is located on any one side or multiple sides of the periphery of the curing portion, the curing portion comprises a base arranged at the bottom end of the inner cavity of the kiln body, and the base abuts against a plurality of placing frames. The heating part comprises a pipe frame, the pipe frame is provided with a heat exchange pipe connected to an external heating medium generating device, and a plurality of cooling fins are arranged on the outer side face of the heat exchange pipe at intervals. The positions of every two vertically-adjacent placing frames are locked through the positioning pieces, the situation that the multiple placing frames are staggered, inclined and toppled when the multiple vertically-stacked placing frames are transferred is prevented, and the number of the placing frames is flexibly adjusted according to the number of the sound barriers. The contact area of the heat exchange pipe and air in the inner cavity of the kiln body is increased through the cooling fins, heat provided by a heating medium is fully utilized, the heating efficiency of the inner cavity of the kiln body is improved, and the heating time is saved.

Description

Technical Field

[0001] This utility model relates to the technical field of sound barrier processing equipment, specifically to a curing kiln for fiber-toughened non-metallic sound barriers. Background Technology

[0002] Sound barriers are used to reduce noise from highways, expressways, elevated bridges, and other noise sources, minimizing the impact of noise on surrounding areas. There are many types of sound barriers, including metal and non-metallic ones. Among non-metallic sound barrier materials, ECP (Extruded Fiber Cement Board), also known as fair-faced concrete hollow board, is an extruded fiber cement board made primarily from silicate cement, lightweight aggregate, silica sand, and toughening fibers. It is produced through high-pressure extrusion and possesses good toughness and is not easily broken, making it a common non-metallic sound barrier material. In the production process of this type of sound barrier, after extrusion molding, it undergoes one or more curing processes to achieve baking hardening and steam curing. Curing kilns are commonly used as curing equipment to maintain the sound barriers. The inventors discovered that during the curing process of sound barriers, if the temperature inside the curing kiln is directly raised to the set high temperature for curing, the sound barriers may crack after curing. Therefore, it is necessary to first bake the sound barriers at a low temperature. During low-temperature baking, the temperature inside the curing kiln rises more slowly, resulting in a longer overall low-temperature drying time. When stacking the sound barriers to be cured, the different heights and dimensions of the various curing kilns mean they can accommodate different numbers of sound barriers. Custom-made sound barrier frames are required, tailored to the dimensions of the curing kiln's interior. Moreover, these frames are mostly one-piece designs, making it impossible to flexibly adjust their load-bearing space and overall dimensions according to actual processing needs. The unsupported portions of the frame may obstruct airflow inside the curing kiln after heating. There is an urgent need for a fiber-toughened non-metallic sound barrier curing kiln that improves the heating efficiency of the curing kiln's interior and can accommodate a variety of sound barriers according to actual processing requirements. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a fiber-toughened non-metallic sound barrier curing kiln that improves the heating efficiency of the inner cavity of the curing kiln and meets the requirements for the number of sound barriers to be accommodated according to the actual processing conditions.

[0004] To solve the above-mentioned technical problems, the utility model includes a kiln body with a kiln door and an inner cavity. Its structural features are as follows: the inner cavity of the kiln body has a curing section and a heating section. The heating section is located on any one or more sides of the curing section. The curing section includes a base located at the bottom of the inner cavity of the kiln body. The base abuts against several stacked racks for supporting sound barriers. Two adjacent racks are detachably connected by positioning components. The heating section includes a tube rack located within the inner cavity of the kiln body. The tube rack has heat exchange tubes connected to an external heating medium generating device. Several heat dissipation fins are spaced apart on the outer surface of the heat exchange tubes.

[0005] With the above structure, the operators place several sound barriers to be cured onto several racks, and then stack the racks containing the sound barriers to be cured one on top of the other. During the stacking, positioning devices lock the positions of adjacent racks to prevent misalignment, tilting, or even tipping over during transport. The number of racks can be flexibly adjusted according to the number of sound barriers, meeting the requirements for the number of sound barriers and the size requirements of the kiln cavity based on the actual processing situation. The operators then use a transport vehicle to transfer the stacked racks to the base inside the kiln cavity. The operators then close the kiln door, and the heating medium generated by the external heating medium generator flows into the heat exchange tubes, raising the temperature inside the kiln cavity through heat exchange. The heat sinks increase the contact area between the heat exchange tubes and the air inside the kiln cavity, making full use of the heat provided by the heating medium, improving the heating efficiency of the kiln cavity, and saving heating time.

[0006] Furthermore, the base consists of two pieces, located on the left and right sides of the bottom of the kiln cavity, respectively. The heating element consists of two sets: one set is located between the left-side base and the left side of the kiln cavity, and the other set is located between the right-side base and the right side of the kiln cavity. By providing two sets of heating elements, the heated air, after heat exchange, flows from the left and right sides of the kiln cavity to the curing section in the center, achieving uniform baking of the sound barrier within the curing section.

[0007] Furthermore, the placement frame includes two support parts spaced apart front to back. The two support parts are connected by a support part for supporting the sound barrier. The bottom end of the support part of the lowermost placement frame can abut against the top end of the base. The distance between two adjacent support parts is greater than the maximum height of the sound barrier. By setting two support parts, stable support is achieved for adjacent placement frames and for the lowermost placement frame to be stably supported by the base. The support part provides stable support for the sound barrier.

[0008] Furthermore, the support section includes several spaced-apart and vertically arranged support feet. The bottom end of the support foot in the lowest placement frame can abut against the top of the base. The several support feet are connected to two horizontally arranged and spaced-apart horizontal ribs. The two adjacent horizontal ribs are connected by several spaced-apart and vertically arranged vertical ribs. The bearing section includes several longitudinal ribs spaced-apart in the left and right horizontal direction. The bearing section has two sets of spaced-apart horizontal ribs. The horizontal ribs in the two adjacent front and rear support sections are connected by the bearing section. The top of the support foot is located above the top of the horizontal rib, the top of the vertical rib, and the top of the bearing section. The bottom of the support foot is located below the bottom of the horizontal rib, the bottom of the vertical rib, and the bottom of the bearing section. By setting the support feet, horizontal ribs, and vertical ribs, the several support feet and the two horizontal ribs form an I-shape, and the two horizontal ribs and the several vertical ribs form an I-shape. The support section has a double I-shape structure, and the overall structural strength of the support section is good. By setting several longitudinal ribs as the bearing section, not only is reliable support provided for the sound barrier, but the sound barrier can also have full contact with the air, ensuring the curing effect of the kiln body on the sound barrier.

[0009] Furthermore, the heat sink is integrally formed with several protrusions. By setting these protrusions, the contact area between the heat sink and the air is increased, ensuring efficient heat exchange between the heat exchange tube, the heat sink, and the air.

[0010] Furthermore, the heat sink is annular in shape, with several protrusions spaced apart along its circumference. By setting the heat sink in annular shape and the protrusions spaced apart along its circumference, the annular heat sink prevents workers from scratching their hands during installation, while the spaced protrusions ensure uniform contact between the heat sink and the air.

[0011] In summary, this utility model has the advantages of being flexible in adapting to operational needs and highly efficient in operation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure from the front view of this utility model;

[0013] Figure 2 yes Figure 1 Enlarged view of a portion of area A in the middle;

[0014] Figure 3 This is a top view of the structure of the shelf;

[0015] Figure 4 This is a three-dimensional structural diagram of the shelf;

[0016] Figure 5 yes Figure 4 Enlarged view of a section in area B;

[0017] Figure 6 This is a schematic diagram of the heat sink and the protrusions.

[0018] Figure 7 This is a kiln temperature curve diagram during the use of this utility model;

[0019] In the diagram: 1. Kiln body; 11. Kiln door; 2. Curing section; 21. Base; 22. Placement rack; 221. Support section; 2211. Support leg; 2212. Horizontal rib; 2213. Vertical rib; 222. Bearing section; 3. Heating section; 31. Tube rack; 32. Heat exchange tube; 33. Heat dissipation fin; 331. Protrusion. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention. For ease of understanding, Figure 1 The top is the upper side. Figure 1 The bottom is the lower side. Figure 1 The left side is the left side. Figure 1 The right side is the right side. Figure 3 The top is the front side. Figure 3 The bottom is the rear side.

[0021] Reference Figure 1The utility model includes a kiln body 1, which has an inner cavity and a kiln door 11, which can be an electric roller shutter door. The inner cavity of the kiln body 1 has a curing section 2 and a heating section 3. The heating section 3 is located on one or more sides of the curing section 2. In this embodiment, the kiln door 11 is located on the rear side. After opening the kiln door 11, material is fed into the inner cavity of the kiln body 1 from the rear side. To avoid interfering with the feeding operation, the four sides of the curing section 2 are the upper side, lower side, left side, and right side. The number of heating sections 3 on a single side of the curing section 2 can be one or more. The curing section 2 includes a base 21 located at the bottom of the inner cavity of the kiln body 1. The base 21 abuts against several stacked racks 22 for supporting the sound barrier. Two adjacent racks 22 are detachably connected by positioning components. The positioning components can be pin assemblies, tongue assemblies, or screw and nut assemblies. When using a pin assembly, two adjacent vertical racks 22 are provided with corresponding vertical insertion holes. Inserting the pin into these two holes allows for a detachable connection between the two adjacent racks 22, preventing misalignment, tilting, or tipping during transport of stacked racks. When using a tongue assembly, one of the two adjacent vertical racks 22 has a circular or polygonal tongue, and the other has a hole shaped to accommodate the tongue. When stacking racks 22 upwards, inserting the tongue into its corresponding hole allows for a detachable connection between the two adjacent racks, preventing misalignment, tilting, or tipping. When several stacked racks 22 are transferred, they are misaligned, tilted, or tipped over. When a screw and nut assembly is used, the screw passes through two adjacent racks 22, with the head of the screw abutting the top of the upper rack 22 and the bottom of the screw protruding from the bottom of the lower rack 22. Then, the nut is screwed onto the bottom of the screw and the top of the nut abuts the bottom of the lower rack 22. After stacking the adjacent racks 22, the two adjacent racks 22 are detachably connected by inserting the screw and screwing the nut onto the screw, preventing the racks 22 from misaligning, tilting, or tipping over when they are transferred.

[0022] Reference Figures 1 to 6The placement frame 22 includes two support parts 221 spaced apart, connected by a support part 222 for supporting the sound barrier. The bottom end of the support part 221 of the lowermost placement frame 22 can abut the top end of the base 21. The distance between two adjacent support parts 222 is greater than the maximum height of the sound barrier. The heating unit 3 includes a tube frame 31 located inside the kiln body 1. The tube frame 31 is provided with heat exchange tubes 32 connected to an external heating medium generating device (not shown in the figure). The tube frame 31 supports the heat exchange tubes 32, and the ends of the heat exchange tubes 32 are connected to the external heating medium generating device to receive the heating medium from the external heating medium generating device. A number of heat dissipation fins 33 are spaced apart on the outer surface of the heat exchange tubes 32. Steam can be used as the heating medium. The external heating medium generating device can be a steam boiler or a steam pipeline network. The external heating medium generating device continuously circulates steam to the heat exchange tube 32. The connection method between the heat exchange tube 32 and the external heating medium generating device is well known to those skilled in the art and will not be described in detail here. The heat exchange tube 32 can be equipped with a disc-type drain valve to promptly discharge condensate from the heat exchange tube 32. After the heating medium flows into the heat exchange tube 32, it raises the temperature of the air inside the kiln body 1 through heat exchange. The heat dissipation fin 33 is integrally formed with several protrusions 331. The heat dissipation fin 33 is annular, and the several protrusions 331 are spaced apart along the circumference of the heat dissipation fin 33. The distance between the protrusions 331 and the heat dissipation fin 33 gradually increases from the outside to the inside, and the protrusions 331 are inclined as a whole. When steam is selected as the heating medium, a steam delivery pipeline and several nozzles can be installed on the heat exchange tube 32. The nozzles receive the steam from the steam delivery pipeline and the heat exchange tube 32 and disperse the steam into the inner cavity of the kiln body 1, which can perform steam curing of the sound barrier.

[0023] Reference Figure 1 and Figures 3 to 5The base 21 has two pieces, which are located on the left and right sides of the bottom of the inner cavity of the kiln body 1, respectively. The heating part 3 has two sets, one set of heating part 3 is located between the left base 21 and the left side of the inner cavity of the kiln body 1, and the other set of heating part 3 is located between the right base 21 and the right side of the inner cavity of the kiln body 1. The support part 221 includes several spaced and vertically arranged support legs 2211. The bottom end of the support leg 2211 in the lowest placement frame 22 can abut the top end of the base 21. Several support legs 2211 are connected to two horizontally arranged horizontal ribs 2212 spaced vertically. Two adjacent horizontal ribs 2212 are connected by several vertically arranged vertical ribs 2213 spaced vertically. The bearing part 222 includes several longitudinal ribs spaced horizontally in the left and right directions. The bearing part 222 has two sets of vertically arranged horizontal ribs. The horizontal ribs 2212 in two adjacent support parts 221 are connected by the bearing part 222. The top end of the support leg 2211 is above the top end of the horizontal rib 2212, the top end of the vertical rib 2213 and the top end of the bearing part 222. The bottom end of the support leg 2211 is below the bottom end of the horizontal rib 2212, the bottom end of the vertical rib 2213 and the bottom end of the bearing part 222.

[0024] In use, the operator places several sound barriers to be cured onto several placement racks 22. Then, the placement racks 22 carrying the sound barriers to be cured are stacked one on top of the other. Positioning devices lock the positions of adjacent placement racks 22 during stacking, preventing misalignment, tilting, or even tipping over during transport. The number of placement racks 22 can be flexibly adjusted according to the number of sound barriers, meeting the requirements for accommodating various sound barriers and the dimensions of the kiln cavity 1. The operator then uses a transport vehicle to transfer the stacked placement racks 22 to the base 21 inside the kiln cavity 1. The operator then closes the kiln door 11. The heating medium generated by the external heating medium generator flows into the heat exchange tube 32, raising the temperature inside the kiln cavity 1 through heat exchange. The heat sink 33 increases the contact area between the heat exchange tube 32 and the air inside the kiln cavity 1, fully utilizing the heat provided by the heating medium, improving the heating efficiency of the kiln cavity 1, and saving heating time. (Refer to...) Figure 7 When this invention is used, the temperature inside the kiln 1 can rise to about 80 degrees Celsius after two hours, saving about an hour compared to the time required to reach 80 degrees Celsius using existing curing equipment. The effect of this invention is even more significant in the winter conditions of northern regions.

[0025] This utility model provides a fiber-toughened non-metallic sound barrier curing kiln. By setting up two heating sections, the heated air flows from the left and right sides of the kiln cavity to the curing section in the center, achieving uniform baking of the sound barrier within the curing section. Two support sections ensure stable support for adjacent upper and lower placement racks, as well as for the lowermost placement rack and its base. A load-bearing section provides stable support for the sound barrier. Support legs, horizontal ribs, and vertical ribs are incorporated; several support legs and two horizontal ribs form an I-shape, and two horizontal ribs and several vertical ribs also form an I-shape, creating a double I-shape structure with good overall structural strength. Several vertical ribs serve as load-bearing sections, providing reliable support for the sound barrier and ensuring sufficient contact between the sound barrier and air, guaranteeing the kiln's curing effect. Several protrusions increase the contact area between the heat exchange fins and air, ensuring efficient heat exchange between the heat exchange tubes, fins, and air. By designing annular heat sinks with protrusions spaced circumferentially around the sinks, the annular heat sinks prevent workers from scratching their hands during installation, while the spaced protrusions ensure even contact between the heat sinks and the air. In summary, this invention offers advantages such as flexible adaptation to operational needs and high operational efficiency.

[0026] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims of this patent, they should all fall within the protection scope of this utility model.

Claims

1. A fiber-reinforced non-metallic acoustic barrier maintenance kiln, comprising a kiln body (1) provided with a kiln door (11), the kiln body (1) having an inner cavity, characterized in that: The inner cavity of the kiln body (1) is provided with a curing part (2) and a heating part (3), the heating part (3) is located at any one side or multiple sides of the curing part (2), the curing part (2) comprises a base (21) arranged at the bottom end of the inner cavity of the kiln body (1), the base (21) abuts against a plurality of placement racks (22) arranged in a stacked manner for carrying sound barriers, two adjacent placement racks (22) are detachably connected by positioning members, and the heating part (3) comprises a pipe rack (31) arranged in the inner cavity of the kiln body (1), the pipe rack (31) is provided with heat exchange pipes (32) connected to an external heating medium generating device, and the outer side of the heat exchange pipes (32) is provided with a plurality of heat dissipation fins (33) arranged at intervals.

2. The fiber-toughened non-metallic sound barrier maintenance kiln according to claim 1, characterized in that: The base (21) is provided with two bases (21), and the two bases (21) are respectively located on the left and right sides of the bottom end of the inner cavity of the kiln body (1), and the heating part (3) is provided with two sets, one set of heating part (3) is arranged between the base (21) on the left side and the left side of the inner cavity of the kiln body (1), and the other set of heating part (3) is arranged between the base (21) on the right side and the right side of the inner cavity of the kiln body (1).

3. The fiber-toughened non-metallic sound barrier maintenance kiln of claim 1, wherein: The placement rack (22) comprises two support parts (221) arranged at intervals, the two support parts (221) are connected by a carrying part (222) for carrying sound barriers, the bottom end of the support part (221) of the lowermost placement rack (22) can abut against the top end of the base (21), and the spacing between the two adjacent carrying parts (222) is greater than the maximum height of the sound barrier.

4. The fiber-toughened non-metallic sound barrier curing kiln according to claim 3, characterized in that: The support part (221) comprises a plurality of support feet (2211) arranged at intervals and vertically, the bottom end of the support foot (2211) in the lowermost placement rack (22) can abut against the top end of the base (21), a plurality of support feet (2211) are commonly connected with two horizontal ribs (2212) arranged at intervals and horizontally, two adjacent horizontal ribs (2212) are connected by a plurality of vertical studs (2213) arranged at intervals, the carrying part (222) comprises a plurality of vertical ribs arranged at intervals in the left-right horizontal direction, the carrying part (222) is arranged at intervals in two sets, the horizontal ribs (2212) in the two adjacent support parts (221) are connected by the carrying part (222), the top end of the support foot (2211) is located above the top end of the horizontal rib (2212), the top end of the vertical stud (2213) and the top end of the carrying part (222), and the bottom end of the support foot (2211) is located below the bottom end of the horizontal rib (2212), the bottom end of the vertical stud (2213) and the bottom end of the carrying part (222).

5. The fiber-toughened non-metallic sound barrier curing kiln according to claim 1, characterized in that: The heat dissipation fin (33) is integrally formed with a plurality of protrusions (331).

6. The fiber-toughened non-metallic sound barrier curing kiln according to claim 5, characterized in that: The heat dissipation fin (33) is in a circular ring shape, and a plurality of protrusions (331) are arranged at intervals along the circumference of the heat dissipation fin (33).

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