Concrete curing kiln

Abstract

The invention relates to the technical field of concrete curing, and particularly discloses a concrete curing kiln which comprises a curing chamber. The buffer chamber is arranged on one side of the curing chamber; the cleaning mechanism is arranged in the buffer chamber and comprises a fan, a filter and a negative pressure pipe, the air inlet side of the fan is connected with the filter, the filter is connected with the negative pressure pipe, the negative pressure pipe comprises a transverse pipe and vertical pipes fixedly connected to the two ends of the transverse pipe, the two ends of the transverse pipe are communicated with the two vertical pipes respectively, and the two ends of the transverse pipe are communicated with the two vertical pipes respectively. Suction inlets are formed in the sides, close to each other, of the two vertical pipes and the side, close to the vertical pipes, of the transverse pipe, so that when a concrete test piece passes through the space between the two vertical pipes, dust on the surface of the concrete test piece can be sucked into the filter through the suction inlets in the negative pressure pipe. The surface of the concrete test piece before curing can be conveniently cleaned, so that the influence of dust on the subsequent curing process is weakened.

Description

Technical Field

[0001] The present application relates to the technical field of concrete curing, and in particular to a concrete curing kiln. Background Art

[0002] A concrete curing kiln is a facility used to cure precast concrete components. Its main function is to provide a controlled temperature and humidity environment during the production of concrete components to ensure that the concrete can achieve the desired strength and durability during the curing process. A steam curing system is usually installed in a concrete curing kiln. The steam curing system includes a steam generator and a delivery pipeline to provide steam curing to accelerate the hardening process of concrete. At the same time, the temperature and humidity in the curing kiln can be controlled to meet the optimal conditions for concrete curing.

[0003] If concrete components are directly placed in a curing room for curing, the dust covering the surface of the concrete will hinder the direct contact between the curing materials (such as water, curing agents, etc.) and the concrete, thereby affecting the thermal insulation and moisture retention effects of the concrete, and further affecting the curing effect. Therefore, a curing kiln is needed that can clean the dust on the surface of the concrete specimens before curing. Summary of the invention

[0004] In order to facilitate cleaning of the surface of a concrete specimen before curing, the present application provides a concrete curing kiln.

[0005] The present application provides a concrete curing kiln adopting the following technical solution: A concrete curing kiln, comprising a curing chamber, wherein a steam curing mechanism is provided in the curing chamber; A buffer room, the buffer room is arranged on one side of the curing room, and a first door body is arranged between the buffer room and the curing room; A cleaning mechanism is arranged in a buffer chamber, and comprises a fan, a filter and a negative pressure pipe. The air inlet side of the fan is connected to the filter, and the filter is connected to the negative pressure pipe. The negative pressure pipe comprises a horizontal pipe and vertical pipes fixedly connected to both ends of the horizontal pipe, and both ends of the horizontal pipe are respectively connected to the two vertical pipes. Suction ports are arranged on the side where the two vertical pipes are close to each other and on the side where the horizontal pipe is close to the vertical pipe, so that when a concrete specimen passes between the two vertical pipes, the suction port on the negative pressure pipe can suck dust on the surface of the concrete specimen into the filter through the suction port.

[0006] By adopting the above technical solution, when the concrete specimen is placed on the lower side of the negative pressure pipe, the negative pressure pipe can suck away the dust on the surface of the concrete specimen through the suction port, thereby cleaning the surface of the concrete specimen and reducing the impact of dust on subsequent maintenance effects.

[0007] Optionally, a spray mechanism is provided in the buffer chamber, and the spray mechanism includes a water tank, a pump body, a spray pipe and a nozzle. The pump body is connected between the water tank and the spray pipe, the nozzle is provided on the spray pipe and communicated with the interior of the spray pipe, and there are multiple nozzles and they are arranged at intervals along the extension direction of the spray pipe.

[0008] By adopting the above technical scheme, after the surface of the concrete specimen is vacuumed and cleaned, water mist can be sprayed on the surface of the concrete specimen to achieve re-cleaning, which helps to enhance the cleaning effect; in addition, the sprayed water mist can make the surface of the concrete specimen more moist, which is helpful for the maintenance of the concrete; since water mist is sprayed into the buffer chamber, the water mist can reduce the dust in the buffer chamber, thereby ensuring the cleanliness of the environment, and when the air in the buffer chamber needs to be pumped back to the curing room for recycling, the dust entering the curing room can be reduced.

[0009] Optionally, the spray pipe includes a tube body and a partition, wherein the partition is fixedly arranged in the tube body, and the partition divides the interior of the tube body into an infusion cavity and an air delivery cavity, the infusion cavity is connected to the pump body, and the end of the infusion cavity is closed, the nozzle is arranged on the side wall of the infusion cavity and is connected to the infusion cavity, one side of the air delivery cavity is connected to an air duct, the air duct is connected to the air outlet side of the fan, and an exhaust port is opened at the end of the air delivery cavity.

[0010] By adopting the above technical scheme, when the first door body is opened, the curing chamber is connected with the buffer chamber, and a part of the high-temperature steam in the curing chamber will leak into the buffer chamber, so that the temperature in the buffer chamber is higher than the room temperature, and the air in the buffer chamber is hot air; the fan can send the hot air in the buffer chamber into the air transmission cavity, so that the hot air in the air transmission cavity and the clean water in the infusion cavity can exchange heat. On the one hand, the steam leaked from the curing chamber is reasonably utilized, and on the other hand, the clean water in the infusion cavity can be preheated and heated, which can avoid a large temperature difference between the concrete specimen and the curing chamber after spraying, so that the concrete specimen is pretreated with a temperature increase before curing, which helps to ensure the subsequent curing effect.

[0011] Optionally, the spray pipe is located on a side close to the curing room.

[0012] By adopting the above technical solution, the gas discharged from the air delivery cavity of the spray pipe can be closer to the side where the curing room is located. When the door of the buffer chamber away from the curing room is subsequently opened, the hot air flowing out of the buffer chamber can be reduced, thereby ensuring the heat exchange effect between the air delivery cavity and the infusion cavity.

[0013] Optionally, the partition is a heat conducting plate.

[0014] The adoption of the above technical solution helps to enhance the heat exchange effect between the hot air in the air delivery cavity and the clean water in the liquid delivery cavity.

[0015] Optionally, the width of the exhaust port is smaller than the width of the tube body.

[0016] By adopting the above technical solution, the speed at which the hot air in the air delivery cavity flows outward can be reduced, so that the hot air can have more time to exchange heat with the clean water in the infusion cavity, thereby enhancing the heat exchange effect.

[0017] Optionally, a heat conductive part is provided in the tube body, and the heat conductive part is provided in plurality and arranged at intervals along the length direction of the tube body. The heat conductive part includes a heat conductive ring and a heat conductive sheet. The heat conductive ring is fixedly connected to the inner wall of the infusion cavity, and the heat conductive sheet is fixedly connected to the heat conductive ring. The heat conductive sheet is located in the gas delivery cavity.

[0018] By adopting the above technical solution, the heat conductive member can, on the one hand, increase the contact area between the clean water in the infusion cavity and the hot air in the gas transmission cavity, thereby enhancing heat exchange; on the other hand, it can block the flowing hot air, thereby prolonging the residence time of the hot air in the gas transmission cavity, prolonging the heat exchange time, and enhancing the heat exchange effect.

[0019] Optionally, two adjacent heat conducting plates are staggeredly arranged in the air delivery cavity.

[0020] By adopting the above technical solution, it is helpful to extend the flow path of the hot air in the air delivery cavity, thereby extending the residence time of the hot air in the air delivery cavity and enhancing heat exchange.

[0021] Optionally, a connecting block is fixedly provided on the heat conducting plate, and the connecting block passes through the side wall of the tube body. A knocking mechanism is provided on the tube body, and the knocking mechanism includes a rotating rod, a knocking plate, a torsion spring and a driving assembly. The rotating rod is arranged along the length direction of the tube body, and the rotating rod is rotatably connected to the tube body. The knocking plate is fixedly connected to the rotating rod, and the torsion spring is fixedly connected between the rotating rod and the tube body so that the knocking plate is pressed against the connecting block. The driving assembly is arranged at one end of the rotating rod, and is used to drive the rotating rod to rotate an angle.

[0022] By adopting the above technical solution, the driving component drives the rotating rod to rotate at an angle, so that the rotating rod drives the knocking plate to rotate to the side away from the connecting block, and then the driving component stops moving. Under the action of the torsion spring, the rotating rod and the knocking plate rotate to the side close to the connecting block until the knocking plate is pressed against the connecting block, thereby knocking the connecting block. The knocking can cause the connecting block to vibrate, and the connecting block can transmit the vibration to the heat conductive sheet and the heat conductive ring. The heat conductive ring can cause the inner wall of the infusion cavity to vibrate, thereby shaking off the scale attached to the inner wall of the infusion cavity, which helps to ensure the heat exchange effect.

[0023] Optionally, the driving assembly includes an air duct, fan blades, a connecting rod, a driving gear and a driven gear, the connecting rod and the rotating rod are parallel, the connecting rod is rotatably connected to the top wall of the tube body, the fan blades and the driving gear are both arranged on the connecting rod, the driven gear is coaxially fixedly connected to the rotating rod, the driven gear is used to mesh with the driving gear, the teeth on the driving gear are only provided with one section, the air duct is arranged on the air duct and is connected with the air duct, the opening of the air duct faces the fan blades, so that the wind blown out of the air duct can drive the fan blades to rotate, the fan blades drive the connecting rod to rotate, so that the rotating rod rotates a certain angle, the knocking plate rotates to the side away from the heat conducting plate, and then the torsion spring drives the rotating rod and the knocking plate to rotate in the opposite direction, and makes the knocking plate press against the heat conducting plate.

[0024] By adopting the above technical solution, after the fan is started, air can be blown to the fan blades through the air duct and the air guide duct, so that the fan blades rotate, and the fan blades drive the connecting rod to rotate. When the teeth on the driving gear mesh with the driven gear, the rotation of the connecting rod can drive the rotating rod to rotate, and open the knocking plate; therefore, the rotation of the rotating rod does not require the setting of other power sources, which helps to reduce energy consumption.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. A cleaning mechanism is provided in the buffer chamber to vacuum and clean the concrete specimens, thereby reducing the impact of dust on the subsequent concrete curing effect.

[0026] 2. The buffer chamber is equipped with a spray pipe that can spray the concrete specimens. The sprayed water mist undergoes heat exchange with the hot air in the room, so it can not only further clean the concrete, but also preheat the concrete specimens, reduce the temperature difference between the concrete specimens and the curing room, and help ensure the curing effect.

[0027] 3. After the fan is started, it can blow air to the fan blades, causing the fan blades to rotate. With the cooperation of the driving gear and the driven gear, the rotating rod and the knocking plate can swing back and forth, thereby knocking on the heat conductive plate, causing the inner wall of the infusion cavity to vibrate, thereby reducing the scale attached to the inner wall of the infusion cavity, which helps to ensure the heat exchange effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a cross-sectional view of an embodiment of the present application; Figure 2 This is a schematic diagram of the structure of the embodiment of the present application after the curing room and the buffer room are hidden; Figure 3 yes Figure 1 The enlarged schematic diagram of point A in the middle; Figure 4 is a cross-sectional view of an embodiment of the present application for illustrating a heat conducting member; Figure 5 yes Figure 2 A magnified schematic diagram of point B in the middle.

[0029] 1. Maintenance room; 2. Buffer room; 21. First door body; 22. Second door body; 3. Cleaning mechanism; 31. Fan; 32. Negative pressure pipe; 321. Horizontal pipe; 322. Vertical pipe; 323. Inlet; 4. Spray mechanism; 41. Water tank; 42. Pump body; 43. Spray pipe; 431. Pipe body; 4311. Infusion cavity; 4312. Air cavity; 432. Partition; 44. Spray head; 5. Exhaust port; 6. Air duct; 7. Heat conducting element; 71. Heat conducting ring; 72. Heat conducting sheet; 721. Connecting block; 8. Knocking mechanism; 81. Turning rod; 82. Knocking plate; 83. Torsion spring; 84. Driving assembly; 841. Air duct; 842. Fan blade; 843. Connecting rod; 844. Driving gear; 845. Driven gear; 9. Concrete specimen. DETAILED DESCRIPTION

[0030] The following combination Figure 1-Figure 5 This application is described in further detail.

[0031] Due to the early release of heat energy from cement hydration, the temperature inside the concrete rises sharply. The temperature stress caused by the excessive temperature difference between the inside and outside of the concrete leads to temperature cracks in the concrete, which has a serious impact on the safety and durability of the structure. Therefore, by simulating and analyzing the temperature field and temperature stress field of the sample wall concrete, the cracking index and change law of the concrete are obtained, which can provide reference suggestions for the age and location of crack prevention and guide the construction of large-volume concrete for repairing rooms.

[0032] The early performance of the model wall concrete after pouring is relatively complex and changeable, and it is difficult to simulate the change law of its temperature field. Therefore, it is necessary to reasonably simplify the performance of the model wall concrete, and then compare the actual poured concrete model with the computer simulated model to determine whether the computer model is accurate. In order to ensure the curing effect of the model wall concrete and improve the accuracy of the model comparison, the embodiment of the present application discloses a concrete curing kiln. Figure 1 and Figure 2 The concrete curing kiln includes a curing chamber 1 and a buffer chamber 2. A passage is provided between the curing chamber 1 and the buffer chamber 2 for interconnecting the two, and a first door body 21 is hinged in the passage. A second door body 22 is hinged on the side of the buffer chamber 2 away from the curing chamber 1. A steam curing mechanism is provided in the curing chamber 1, which can transport steam into the curing chamber 1, thereby ensuring that the curing chamber 1 has a suitable curing temperature and humidity.

[0033] In order to facilitate the cleaning of dust on the surface of the concrete specimen 9, a cleaning mechanism 3 is provided in the buffer chamber 2, and the cleaning mechanism 3 includes a fan 31, a filter and a negative pressure pipe 32. The negative pressure pipe 32 includes a transverse pipe 321 and a vertical pipe 322 fixedly connected to both ends of the transverse pipe 321, and the bottom end of the vertical pipe 322 is fixedly set on the ground. The vertical pipe 322 and the transverse pipe 321 are internally connected, and a plurality of suction ports 323 are provided on the side where the two vertical pipes 322 are close to each other and on the bottom of the transverse pipe 321. The filter is connected between the transverse pipe 321 and the air inlet side of the fan 31. When the concrete specimen 9 is placed between the two vertical pipes 322, the fan 31 is started, and the dust on the surface of the concrete specimen 9 can be sucked into the negative pressure pipe 32 through the suction port 323, and then the dust is collected in the filter, thereby cleaning the surface of the concrete specimen 9.

[0034] In addition, a spray mechanism 4 is also provided in the buffer chamber 2, which can realize the spray treatment of the cleaned concrete specimen 9. Spraying helps to keep the concrete surface moist and is beneficial to the subsequent hydration reaction of the concrete. The spray mechanism 4 includes a water tank 41, a pump body 42, a spray pipe 43 and a nozzle 44. The water tank 41 is placed on the ground, the pump body 42 is fixedly connected to the water tank 41, and the water inlet of the pump body 42 is connected to the inside of the water tank 41; the spray pipe 43 is provided on one side of the negative pressure pipe 32, and the shape of the spray pipe 43 is the same as that of the negative pressure pipe 32, and the spray pipe 43 includes a horizontal part and two vertical parts; the water outlet of the pump body 42 is connected to the horizontal part of the spray pipe 43. The nozzle 44 is an atomizing nozzle, and the nozzle 44 is fixedly connected to the spray pipe 43. There are multiple nozzles 44 and they are evenly spaced along the length extension direction of the spray pipe 43. The nozzle 44 is connected to the interior of the spray pipe 43 , so after the pump body 42 is started, the water in the water tank 41 can be pumped into the spray pipe 43 , and then sprayed from the nozzle 44 onto the surface of the concrete specimen 9 below, thereby achieving spray treatment of the concrete specimen 9 .

[0035] Reference Figure 2 and Figure 3Further, the spray pipe 43 includes a tube body 431 and a partition 432 fixedly connected to the tube body 431, the partition 432 divides the internal space of the tube body 431 into an infusion cavity 4311 and an air delivery cavity 4312, and the infusion cavity 4311 is not connected to the air delivery cavity 4312; wherein the partition 432 is a heat conducting plate, which is a copper plate, and thus has good thermal conductivity. The top of the infusion cavity 4311 is connected to the water outlet of the pump body 42, and the bottom of the infusion cavity 4311 is closed; the nozzle 44 is arranged on the side wall of the infusion cavity 4311, and the nozzle 44 is connected to the infusion cavity 4311. The top of the air delivery cavity 4312 is fixedly provided with an air duct 6, and the air duct 6 is connected to the air delivery cavity 4312; the end of the air duct 6 away from the air delivery cavity 4312 is connected to the air outlet side of the fan 31. An exhaust port 5 is provided at the bottom of the gas delivery cavity 4312. Therefore, the fan 31 can deliver air to the gas delivery cavity 4312 through the air duct 6. Since there is a certain amount of steam leaked from the curing chamber 1 in the buffer chamber 2, the temperature in the buffer chamber 2 is higher than the room temperature. Therefore, the wind flowing into the gas delivery cavity 4312 is hot wind, which can exchange heat with the clean water in the liquid delivery cavity 4311, so that the clean water is heated. Therefore, hot water mist is sprayed on the surface of the concrete specimen 9, reducing the temperature difference between the concrete specimen 9 and the curing chamber 1, avoiding a sudden change in the temperature of the concrete specimen 9, and helping to ensure the subsequent curing effect.

[0036] Among them, the opening size of the exhaust port 5 is small, and the width of the exhaust port 5 is smaller than the width of the tube body 431, so that the speed of exhausting the hot air in the air delivery cavity 4312 can be slowed down, so that the hot air in the air delivery cavity 4312 can more fully exchange heat with the clean water in the infusion cavity 4311, which helps to enhance the heat exchange effect.

[0037] Reference Figure 4 , a heat-conducting member 7 is also provided in the tube body 431, and a plurality of heat-conducting members 7 are provided and are evenly spaced along the length extension direction of the tube body 431. The heat-conducting member 7 includes a heat-conducting ring 71 and a heat-conducting sheet 72. The heat-conducting ring 71 is fixedly connected to the inner wall of the infusion cavity 4311, and the circumferential side of the heat-conducting ring 71 abuts against the inner wall of the infusion cavity 4311; the heat-conducting sheet 72 is fixedly penetrated on the partition 432, one end of the heat-conducting sheet 72 is fixedly connected to the heat-conducting ring 71 in the infusion cavity 4311, and the other end of the heat-conducting sheet 72 is located in the gas transmission cavity 4312. Therefore, the heat-conducting sheet 72 can hinder the gas circulation speed in the gas transmission cavity 4312, so that the hot air in the gas transmission cavity 4312 can more fully exchange heat with the clean water in the infusion cavity 4311.

[0038] Furthermore, the heat conductive sheets 72 in the air delivery cavity 4312 are arranged in a staggered manner. Among two adjacent heat conductive sheets 72, one heat conductive sheet 72 is against the partition 432, and a gap is provided between the other heat conductive sheet 72 and the partition 432; therefore, the staggered heat conductive sheets 72 can further extend the air flow path in the air delivery cavity 4312, thereby improving the heat exchange effect.

[0039] Reference Figure 5 In addition, a connection block 721 is fixedly connected to the heat conducting sheet 72, and one end of the connection block 721 passes through the tube body 431. A knocking mechanism 8 is provided on the outer wall of the tube body 431 for knocking the end of the connection block 721 outside the tube body 431. The knocking mechanism 8 is provided in two groups, corresponding to the two vertical parts of the spray pipe 43. In other embodiments, a group of knocking mechanisms 8 may also be provided on the outer side of the horizontal part of the spray pipe 43.

[0040] The knocking mechanism 8 includes a rotating rod 81, a knocking plate 82, a torsion spring 83 and a driving assembly 84. The rotating rod 81 is vertically arranged, and the rotating rod 81 rotates around its own axis and is connected to the outer wall of the tube body 431. The knocking plate 82 is fixedly connected to the rotating rod 81, and the side of the knocking plate 82 away from the rotating rod 81 can be abutted against the outside of the connecting block 721. The torsion spring 83 is fixedly connected between the rotating rod 81 and the top of the tube body 431. Under normal conditions, the torsion spring 83 is in a twisted state, so that the knocking plate 82 is pressed against the connecting block 721. The driving assembly 84 is arranged at the top of the rotating rod 81, and is used to drive the rotating rod 81 to rotate an angle.

[0041] The driving assembly 84 includes an air duct 841, a fan blade 842, a connecting rod 843, a driving gear 844 and a driven gear 845. The connecting rod 843 is vertically arranged, and the connecting rod 843 rotates around its own axis and is connected to the top wall of the tube body 431. The fan blade 842 is fixedly connected to the top of the connecting rod 843, and the fan blade 842 is provided with a plurality of and arranged in a circular array. The driving gear 844 is coaxially fixedly connected to the top of the rotating rod 81, and the teeth on the driving gear 844 are only provided with a small section. The driven gear 845 is coaxially fixedly connected to the rotating rod 81, and the driven gear 845 is used to mesh with the teeth on the driving gear 844. The air duct 841 is fixedly connected to the air duct 6, and the air duct 841 is connected to the air duct 6; the end of the air duct 841 away from the air duct 6 faces the fan blade 842.

[0042] Therefore, the fan 31 can blow air toward the fan blades 842 through the air duct 6 and the air guide 841, so that the fan blades 842 rotate, and the fan blades 842 drive the connecting rod 843 to rotate, and the connecting rod 843 drives the driving gear 844 to rotate. When the teeth on the driving gear 844 are engaged with the driven gear 845, the rotation of the connecting rod 843 can cause the rotating rod 81 to rotate, so that the rotating rod 81 drives the knocking plate 82 to rotate toward the side away from the connecting block 721; when the teeth on the driving gear 844 are disengaged from the driven gear 845, under the action of the torsion spring 83, the rotating rod 81 and the knocking plate 82 will rotate in the opposite direction until the knocking plate 82 is pressed against the connecting block 721, thereby achieving the knocking of the connecting block 721. The knocking of the knocking plate 82 will cause the connecting block 721 to vibrate, thereby transmitting the vibration to the heat conductive sheet 72 through the connecting block 721, and the heat conductive sheet 72 transmits the vibration to the heat conductive ring 71, thereby causing the inner wall of the infusion cavity 4311 to vibrate, which can reduce the scale attached to the inner wall of the infusion cavity 4311 and help ensure the heat exchange effect between the clean water in the infusion cavity 4311 and the hot air in the air delivery cavity 4312.

[0043] The implementation principle of a concrete curing kiln in the embodiment of the present application is as follows: the concrete specimen 9 to be cured is placed on a trolley, and then the trolley is pushed into the buffer chamber 2, and the trolley is pushed to the bottom of the negative pressure pipe 32. Then the fan 31 is started, and the negative pressure pipe 32 can suck the dust on the surface of the concrete specimen 9 into the filter through the suction port 323; then the trolley is moved back and forth, so that the concrete specimen 9 can be moved relative to the negative pressure pipe 32, thereby achieving comprehensive cleaning of the concrete specimen 9.

[0044] After cleaning is completed, the fan 31 continues to run and the pump body 42 is started. The pump body 42 can pump the clean water in the water tank 41 into the infusion cavity 4311 of the tube body 431, and then the clean water in the infusion cavity 4311 is sprayed outward through the nozzle 44 in the form of water mist, and sprayed on the surface of the concrete specimen 9 to further clean the surface of the concrete specimen 9.

[0045] After the spraying is completed, the first door 21 is opened, the trolley is pushed into the curing chamber 1 and the concrete specimen 9 is cured, and then the first door 21 is closed. In the process of sending the concrete specimen 9 into the curing chamber 1, the opened first door 21 will cause part of the high-temperature steam in the curing chamber 1 to leak into the buffer chamber 2, causing the temperature in the buffer chamber 2 to rise to higher than the normal temperature. Then the next trolley with the concrete specimen 9 is pushed to the bottom of the negative pressure pipe 32, and the above operation is repeated to achieve the cleaning and spraying of the concrete specimen 9. At the same time, since a part of the steam in the curing chamber 1 leaks into the buffer chamber 2, after the fan 31 is started, the hot air in the buffer chamber 2 can be sent to the air delivery chamber 4312, so that the hot air and the clean water in the liquid delivery chamber 4311 can exchange heat, preheat the clean water, and increase the temperature of the clean water; after completing the vacuum cleaning of the concrete specimen 9, the preheated clean water is sprayed onto the surface of the concrete specimen 9, thereby avoiding excessive temperature difference between the concrete specimen 9 and the curing chamber 1 after spraying, which helps to ensure the subsequent curing effect.

[0046] The above are optional embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A concrete curing kiln, characterized in that: include: A curing room (1), wherein a steam curing mechanism is provided in the curing room (1); A buffer chamber (2), the buffer chamber (2) being arranged on one side of the curing chamber (1), and a first door body (21) being arranged between the buffer chamber (2) and the curing chamber (1); A cleaning mechanism (3) is arranged in the buffer chamber (2), the cleaning mechanism (3) comprising a fan (31), a filter and a negative pressure pipe (32), the air inlet side of the fan (31) being connected to the filter, the filter being connected to the negative pressure pipe (32), the negative pressure pipe (32) comprising a horizontal pipe (321) and vertical pipes (322) fixedly connected to both ends of the horizontal pipe (321), the two ends of the horizontal pipe (321) being respectively connected to the two vertical pipes (322), the sides of the two vertical pipes (322) close to each other and the side of the horizontal pipe (321) close to the vertical pipe (322) are both provided with suction ports (323), so that when the concrete specimen (9) passes between the two vertical pipes (322), the suction port (323) on the negative pressure pipe (32) can suck dust on the surface of the concrete specimen (9) into the filter through the suction port (323).

2. A concrete curing kiln according to claim 1, characterized in that: A spray mechanism (4) is arranged in the buffer chamber (2), the spray mechanism (4) comprising a water tank (41), a pump body (42), a spray pipe (43) and a spray head (44), the pump body (42) being connected between the water tank (41) and the spray pipe (43), the spray head (44) being arranged on the spray pipe (43) and communicating with the interior of the spray pipe (43), and a plurality of the spray heads (44) being arranged and spaced apart along the extension direction of the spray pipe (43).

3. A concrete curing kiln according to claim 2, characterized in that: The spray pipe (43) comprises a pipe body (431) and a partition (432); the partition (432) is fixedly arranged in the pipe body (431); the partition (432) divides the interior of the pipe body (431) into an infusion chamber (4311) and an air supply chamber (4312); the infusion chamber (4311) is connected to the pump body (42); the end of the infusion chamber (4311) is closed; the spray head (44) is arranged on the side wall of the infusion chamber (4311) and is connected to the infusion chamber (4311); one side of the air supply chamber (4312) is connected to an air duct (6); the air duct (6) is connected to the air outlet side of the fan (31); and an exhaust port (5) is provided at the end of the air supply chamber (4312).

4. A concrete curing kiln according to claim 3, characterized in that: The spray pipe (43) is located on a side close to the curing room (1).

5. A concrete curing kiln according to claim 3, characterized in that: The partition plate (432) is a heat conducting plate.

6. A concrete curing kiln according to claim 3, characterized in that: The width of the exhaust port (5) is smaller than the width of the tube body (431).

7. A concrete curing kiln according to claim 3, characterized in that: A heat conducting member (7) is arranged in the tube body (431); a plurality of the heat conducting members (7) are arranged and spaced apart along the length direction of the tube body (431); the heat conducting member (7) comprises a heat conducting ring (71) and a heat conducting sheet (72); the heat conducting ring (71) is fixedly connected to the inner wall of the infusion cavity (4311); the heat conducting sheet (72) is fixedly connected to the heat conducting ring (71); and the heat conducting sheet (72) is located in the gas infusion cavity (4312).

8. A concrete curing kiln according to claim 7, characterized in that: Two adjacent heat conducting sheets (72) are arranged alternately in the gas delivery cavity (4312).

9. A concrete curing kiln according to claim 7, characterized in that: A connecting block (721) is fixedly arranged on the heat conducting sheet (72), and the connecting block (721) passes through the side wall of the tube body (431). A knocking mechanism (8) is arranged on the tube body (431), and the knocking mechanism (8) comprises a rotating rod (81), a knocking plate (82), a torsion spring (83) and a driving assembly (84). The rotating rod (81) is arranged along the length direction of the tube body (431), and the rotating rod (81) is rotatably connected to the tube body (431). The knocking plate (82) is fixedly connected to the rotating rod (81), and the torsion spring (83) is fixedly connected between the rotating rod (81) and the tube body (431) so that the knocking plate (82) is pressed against the connecting block (721). The driving assembly (84) is arranged at one end of the rotating rod (81) and is used to drive the rotating rod (81) to rotate at an angle.

10. A concrete curing kiln according to claim 9, characterized in that: The driving assembly (84) comprises an air guide tube (841), a fan blade (842), a connecting rod (843), a driving gear (844) and a driven gear (845); the connecting rod (843) is parallel to the rotating rod (81); the connecting rod (843) is rotatably connected to the top wall of the tube body (431); the fan blade (842) and the driving gear (844) are both arranged on the connecting rod (843); the driven gear (845) is coaxially fixedly connected to the rotating rod (81); the driven gear (845) is used to mesh with the driving gear (844); the driving gear (844) is The tooth is provided with only one section, the air guide pipe (841) is provided on the air duct (6) and is connected to the air duct (6), the opening of the air guide pipe (841) faces the fan blade (842), so that the wind blown out of the air guide pipe (841) can drive the fan blade (842) to rotate, and the fan blade (842) drives the connecting rod (843) to rotate, so that the rotating rod (81) rotates a certain angle, and the knocking plate (82) rotates to a side away from the heat conducting plate (72), and then the torsion spring (83) drives the rotating rod (81) and the knocking plate (82) to rotate in the opposite direction, and causes the knocking plate (82) to press against the heat conducting plate (72).

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