Drying mechanism with preheating function

Abstract

The drying mechanism with the preheating function relates to the technical field of UHPC thermal insulation plate strip production and comprises a bottom table and a preheating assembly, a conveying assembly used for feeding is arranged in the upper end of the bottom table, a fixing cover is arranged at the top of the bottom table, air cylinders are arranged on the front side and the rear side of the fixing cover respectively, and the preheating assembly is arranged on the bottom table. One end of the air cylinder is connected with a movable door, a drying assembly used for drying is arranged in the center of the top of the fixing cover, and the preheating assemblies used for waste heat utilization are arranged in the left end and the right end of the fixing cover. According to the drying mechanism with the preheating function, through the arrangement of the preheating assembly, when a second draught fan drives airflow to conduct air cooling heat exchange on a dried high-temperature UHPC heat insulation plate strip, a filtering cover can filter impurities in the airflow, the UHPC heat insulation plate strip is prevented from being polluted, meanwhile, the airflow obtained after heat exchange can enter a fixing frame through a second flow dividing pipe, and therefore the heat exchange efficiency of the UHPC heat insulation plate strip is improved. And the UHPC thermal insulation plate strip to be dried is blown by the spray head so as to be preheated and dried.

Description

Technical Field

[0001] The utility model relates to the technical field of UHPC heat insulation board belt production, in particular to a drying mechanism with a preheating function. Background Technique

[0002] Ultra-high performance concrete, abbreviated as UHPC, also known as reactive powder concrete, is the most innovative cement-based engineering material in the past thirty years, achieving a great leap in the performance of engineering materials. When producing UHPC heat insulation boards, a drying mechanism is required to dry the UHPC heat insulation boards.

[0003] For example, the utility model with the application number CN202022447342.1 discloses a drying device for concrete precast slab forming. By using a lampshade and an electric heating wire, the utility model can quickly heat the inside of the box. At the same time, by using a baffle, a fan, a heat insulation pipe, a water tank, a metal rod, a semiconductor refrigeration chip and a radiator fan, the water vapor generated by heating and drying can be condensed and collected, and after drying is completed, the inside of the box can be cooled by the reverse rotation of the fan, that is, the influence of water vapor on the drying of the precast slab is avoided, and at the same time, the precast slab can be quickly cooled, improving the forming efficiency of the precast slab. However, in the actual use process, since the temperature inside the device will drop after the precast slab is cooled, when drying the next precast slab, the inside of the device needs to be heated again, which is not convenient for making full use of the waste heat and results in the problem of increased energy consumption.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and a drying mechanism with a preheating function is provided. Content of the Utility Model

[0005] The purpose of the utility model is to provide a drying mechanism with a preheating function to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A drying mechanism with a preheating function, including a base table and a preheating component. A conveying component for feeding is arranged inside the upper end of the base table, and a fixed cover is arranged on the top of the base table. Cylinders are arranged on both the front and rear sides of the fixed cover, and a moving door is connected to one end of the cylinder. A drying component for drying is arranged in the center of the top of the fixed cover. The preheating component for waste heat utilization is arranged inside the left and right ends of the fixed cover. The preheating component includes a filter cover, a second fan, a second shunt pipe, a third fan and a fixed frame. A filter cover is arranged at the right end of the top of the fixed cover, and a second fan is arranged inside the upper right end of the fixed cover. A second shunt pipe is connected to the rear side of the right part of the fixed cover, and a third fan is connected to the left end of the second shunt pipe. A fixed frame is arranged at the bottom of the third fan.

[0007] Further, the conveying component includes a motor and a conveyor wheel. The motor is arranged at the front end of the left part of the base table, and the conveyor wheel is connected to the rear end of the motor.

[0008] Further, the conveying component further includes a conveyor belt and a supporting roller. The conveyor belt is sleeved outside the conveyor wheel, and supporting rollers are arranged at the upper end inside the conveyor belt. Moreover, the supporting rollers are rotatably connected to the base table.

[0009] Further, the drying component includes a first blower, a heating box and heating wires. The first blower is arranged at the bottom end of the heating box, and the heating wires are arranged inside the heating box.

[0010] Further, the movable door is slidably connected to the fixed cover, and the fixed cover is fixedly connected to the heating box.

[0011] Further, the drying component further includes a drying box and a first shunt pipe. The first blower is connected to one side of the drying box, and the first shunt pipe is arranged at one side of the drying box. Moreover, the first shunt pipe is communicated with the fixed cover.

[0012] Further, uniform distribution components for uniformly jetting air are arranged at the lower ends of the heating box and the fixed frame. The uniform distribution component includes a rotating cylinder and a uniform distribution pipe. The rotating cylinders are rotatably connected to the inner parts at the lower ends of the heating box and the fixed frame respectively, and the uniform distribution pipe is fixed to the bottom of the rotating cylinder.

[0013] Further, the uniform distribution component further includes spray nozzles and boosting pipes. The spray nozzles are arranged at equal intervals at the bottom of the uniform distribution pipe, and the boosting pipes are connected to one ends of both sides of the uniform distribution pipe.

[0014] The present utility model provides a drying mechanism with a preheating function, which has the following beneficial effects:

[0015] 1. Through the arrangement of the preheating component in the present utility model, when the second blower drives the air flow to perform air-cooled heat exchange on the high-temperature UHPC insulation board belt after drying, the filter cover can filter impurities in the air flow, avoiding polluting the UHPC insulation board belt. At the same time, the air flow after heat exchange can enter the fixed frame through the second shunt pipe and be blown onto the UHPC insulation board belt to be dried through the spray nozzles, so as to preheat and dry it. This not only improves the drying efficiency of the UHPC insulation board belt later, but also utilizes the heat during the cooling after drying, being more energy-saving;

[0016] 2. Through the arrangement of the uniform distribution component in the present utility model, when the air flow enters the uniform distribution pipe, since the boosting pipes and the uniform distribution pipe are vertically distributed, the air flow discharged from the boosting pipes can drive the uniform distribution pipe to rotate around the rotating cylinder. At the same time, the spray nozzles are equally distributed at the bottom end of the uniform distribution pipe. Therefore, when drying the UHPC insulation board belt, the heat flow can be evenly sprayed on the surface of the UHPC insulation board belt, making the drying more uniform. Description of the Drawings

[0017] Figure 1 This is a schematic front elevation sectional view of the overall drying mechanism with a preheating function of the present utility model;

[0018] Figure 2 This is a schematic top view sectional view of the movable door of the drying mechanism with a preheating function of the present utility model;

[0019] Figure 3 This is a schematic three-dimensional structure view of the distribution pipe of the drying mechanism with a preheating function of the present utility model.

[0020] In the figure: 1, base table; 2, conveying assembly; 201, motor; 202, conveyor pulley; 203, conveyor belt; 204, idler roller; 3, fixed cover; 4, cylinder; 5, movable door; 6, drying assembly; 601, first fan; 602, heating box; 603, heating wire; 604, drying box; 605, first shunt pipe; 7, preheating assembly; 701, filter cover; 702, second fan; 703, second shunt pipe; 704, third fan; 705, fixed frame; 8, distribution assembly; 801, rotating cylinder; 802, distribution pipe; 803, nozzle; 804, boosting pipe. Specific embodiments

[0021] The following further describes in detail the embodiments of the present utility model in conjunction with the drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0022] Such as Figure 1 And Figure 2As shown in the figure, a drying mechanism with a preheating function includes a base 1 and a preheating component 7. Inside the upper end of the base 1, a conveying component 2 for feeding is arranged. And on the top of the base 1, a fixed cover 3 is provided, through which the heat loss inside can be reduced. The conveying component 2 includes a motor 201 and a transmission wheel 202. The motor 201 is installed at the front end of the left part of the base 1, and the rear end of the motor 201 is connected to the transmission wheel 202. The conveying component 2 further includes a conveyor belt 203 and a roller 204. The conveyor belt 203 is sleeved on the outside of the transmission wheel 202, and the roller 204 is arranged at the upper end inside the conveyor belt 203. And the roller 204 is rotatably connected to the base 1. The motor 201 moves the position of the UHPC heat insulation board through the transmission wheel 202 and the conveyor belt 203. At the same time, the roller 204 can improve the stability during movement. On both the front and rear sides of the fixed cover 3, cylinders 4 are arranged, and one end of the cylinder 4 is connected to a movable door 5. In the center of the top of the fixed cover 3, a drying component 6 for drying is arranged. The drying component 6 includes a first blower 601, a heating box 602 and a heating wire 603. The bottom end of the first blower 601 is provided with the heating box 602, and the heating wire 603 is arranged inside the heating box 602. The heating wire 603 can heat the inside of the heating box 602. The movable door 5 is slidably connected to the fixed cover 3, and the fixed cover 3 is fixedly connected to the heating box 602. The cylinder 4 can be started to close the movable door 5 to avoid the leakage of heat flow. The drying component 6 further includes a drying box 604 and a first shunt pipe 605. One side of the first blower 601 is connected to the drying box 604, and a first shunt pipe 605 is arranged on one side of the drying box 604. And the first shunt pipe 605 is communicated with the fixed cover 3. The heat flow can return to the first blower 601 through the first shunt pipe 605 for circulation, reducing the heat loss. At the same time, during the circulation, part of the steam can be removed by the desiccant inside the drying box 604 to improve the drying efficiency.

[0023] As Figure 1 and Figure 3As shown in the figure, the preheating component 7 for waste heat utilization is arranged inside the left and right ends of the fixed cover 3. The preheating component 7 includes a filter cover 701, a second fan 702, a second shunt pipe 703, a third fan 704, and a fixed frame 705. The filter cover 701 is installed at the right end of the top of the fixed cover 3, and the second fan 702 is arranged inside the upper right end of the fixed cover 3. When the second fan 702 drives the air flow to perform air-cooled heat exchange on the high-temperature UHPC heat insulation board after drying, the filter cover 701 can filter the impurities in the air flow to avoid polluting the UHPC heat insulation board. The rear side of the right part of the fixed cover 3 is connected to the second shunt pipe 703, and the left end of the second shunt pipe 703 is connected to the third fan 704. The fixed frame 705 is installed at the bottom of the third fan 704. The heat-exchanged air flow can enter the fixed frame 705 through the second shunt pipe 703. At the same time, the third fan 704 can increase the air pressure inside the fixed frame 705, so as to blow the heat flow on the UHPC heat insulation board to be dried through the nozzle 803, to preheat and dry it, which not only improves the drying efficiency of the UHPC heat insulation board later, but also can utilize the heat during the cooling after drying, making it more energy-saving. The lower ends of the heating box 602 and the fixed frame 705 are both provided with a uniform distribution component 8 for uniformly jetting air. The uniform distribution component 8 includes a rotating cylinder 801 and a uniform distribution pipe 802. The rotating cylinders 801 are rotatably connected inside the lower ends of the heating box 602 and the fixed frame 705, and the uniform distribution pipes 802 are fixed at the bottoms of the rotating cylinders 801. The uniform distribution component 8 further includes nozzles 803 and boosting pipes 804. The nozzles 803 are equidistantly arranged at the bottom of the uniform distribution pipe 802, and one ends of both sides of the uniform distribution pipe 802 are connected to the boosting pipes 804. When the heat flow enters the uniform distribution pipe 802, since the boosting pipes 804 and the uniform distribution pipe 802 are perpendicularly distributed, the air flow discharged from the boosting pipes 804 can drive the uniform distribution pipe 802 to rotate around the rotating cylinder 801. At the same time, the nozzles 803 are equidistantly distributed at the bottom end of the uniform distribution pipe 802. Therefore, when drying the UHPC heat insulation board, the heat flow can be evenly sprayed on the surface of the UHPC heat insulation board, making the drying more uniform.

[0024] In summary, when the drying mechanism with a preheating function is used, first, according to Figure 1 , Figure 2 and Figure 3For the structure shown in the figure, first place the bracket with the UHPC heat insulation board belt on the conveyor belt 203. Then, the motor 201 moves the UHPC heat insulation board on the conveyor belt 203 to the lower part of the uniform distribution component 8 through the conveyor wheel 202. Next, start the cylinder 4 to close the moving door 5 to prevent heat leakage. Then, the heating wire 603 can heat the inside of the heating box 602, and the first blower 601 can send the heated air flow into the uniform distribution component 8. At this time, when the heat flow enters the uniform distribution pipe 802, since the boosting pipe 804 is vertically distributed with the uniform distribution pipe 802, the air flow discharged from the boosting pipe 804 can drive the uniform distribution pipe 802 to rotate around the rotating cylinder 801. At the same time, the nozzles 803 are evenly distributed at the bottom end of the uniform distribution pipe 802. Therefore, when drying the UHPC heat insulation board belt, the heat flow can be evenly sprayed on the surface of the UHPC heat insulation board belt, and the heat flow can also return to the first blower 601 through the first shunt pipe 605 for circulation. At the same time, during the circulation, part of the steam can be removed by the desiccant inside the drying box 604. Finally, while drying, since the previously dried UHPC heat insulation board belt has been transported by the conveying component 2 to the right end inside the fixed cover 3. At this time, when the second blower 702 drives the air flow to conduct air-cooled heat exchange on the dried and high-temperature UHPC heat insulation board belt, the filter cover 701 can filter the impurities in the air flow, and the heat-exchanged air flow can enter the fixed frame 705 through the second shunt pipe 703. At the same time, the third blower 704 can increase the air pressure inside the fixed frame 705, so as to blow the heat flow on the UHPC heat insulation board belt to be dried through the nozzles 803 for preheating and drying.

[0025] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better explain the principles of the present invention and its practical application, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

Claims

1. A drying mechanism with a preheating function, comprising a base (1) and a preheating component (7), characterized in that: A conveying assembly (2) for feeding is arranged inside the upper end of the base (1), and a fixed cover (3) is arranged on the top of the base (1). Cylinders (4) are arranged on both the front and rear sides of the fixed cover (3), and one end of the cylinder (4) is connected to a movable door (5). A drying assembly (6) for drying is arranged in the center of the top of the fixed cover (3). The preheating assembly (7) for waste heat utilization is arranged inside the left and right ends of the fixed cover (3). The preheating assembly (7) includes a filter cover (7 01), fan 2 (702), shunt pipe 2 (703), fan 3 (704) and a fixed frame (705), the top right end of the fixed cover (3) is provided with a filter cover (701), and the upper right end of the fixed cover (3) is provided with fan 2 (702), the right rear side of the fixed cover (3) is connected with shunt pipe 2 (703), and the left end of shunt pipe 2 (703) is connected with fan 3 (704), and the bottom of fan 3 (704) is provided with a fixed frame (705).

2. A drying mechanism with preheating function according to claim 1, characterized in that: The conveying assembly (2) comprises a motor (201) and a transmission wheel (202); the motor (201) is arranged at the front end of the left part of the base (1), and the rear end of the motor (201) is connected to the transmission wheel (202).

3. A drying mechanism with preheating function according to claim 2, characterized in that: The conveying assembly (2) further comprises a conveyor belt (203) and a roller (204); the outer side of the conveyor wheel (202) is sleeved with the conveyor belt (203); the inner upper end of the conveyor belt (203) is provided with a roller (204); and the roller (204) is rotatably connected to the base (1).

4. A drying mechanism with preheating function according to claim 1, characterized in that: The drying component (6) comprises a fan (601), a heating box (602) and a heating wire (603). The bottom end of the fan (601) is provided with a heating box (602), and the interior of the heating box (602) is provided with a heating wire (603).

5. A drying mechanism with preheating function according to claim 4, characterized in that: The movable door (5) is slidably connected to the fixed cover (3), and the fixed cover (3) is fixedly connected to the heating box (602).

6. A drying mechanism with preheating function according to claim 4, characterized in that: The drying assembly (6) further comprises a drying box (604) and a diverter pipe (605); one side of the fan (601) is connected to the drying box (604); one side of the drying box (604) is provided with a diverter pipe (605); and the diverter pipe (605) is communicated with the fixed cover (3).

7. A drying mechanism with preheating function according to claim 4, characterized in that: The lower ends of the heating box (602) and the fixed frame (705) are both provided with a uniform distribution component (8) for uniform air jetting, and the uniform distribution component (8) includes a rotating drum (801) and a uniform distribution pipe (802). The lower ends of the heating box (602) and the fixed frame (705) are both rotatably connected to the rotating drum (801), and the uniform distribution pipe (802) is fixed to the bottom of the rotating drum (801).

8. A drying mechanism with preheating function according to claim 7, characterized in that: The uniform distribution component (8) further comprises a nozzle (803) and a booster tube (804); the nozzles (803) are equidistantly arranged at the bottom of the uniform distribution tube (802), and one end of both sides of the uniform distribution tube (802) is connected to a booster tube (804).

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