Three-dimensional curing kiln for steam curing of precast concrete component

Abstract

The invention discloses a three-dimensional curing kiln for steam curing of a precast concrete component, and relates to the technical field of concrete curing, the three-dimensional curing kiln for steam curing of the precast concrete component comprises a kiln body, two slopes are arranged at the bottom end of the inner wall of the kiln body, and a set of three-dimensional placing frames are installed at the top ends of the two slopes; a steam spraying assembly is arranged on the inner wall of the kiln body. A closing assembly is arranged at the top end of the kiln body. The steam spraying assembly comprises two steam spraying pipes, rotating rods are fixedly installed on the outer walls of the two steam spraying pipes, two connecting rods are rotationally connected to one ends of the outer walls of the two rotating rods correspondingly, the closing assembly comprises a movable cover plate, the movable cover plate is slidably arranged at the top end of the kiln body, and the steam spraying pipes can swing within a certain range through the steam spraying assembly; the steam spraying angle is changed, the situation that the concrete prefabricated part is heated unevenly due to the fact that the heating position is fixed is avoided, the curing effect is greatly improved, and it is ensured that the quality of the concrete prefabricated part is stable.

Description

Technical Field

[0001] The invention relates to the technical field of concrete curing, in particular to a three-dimensional curing kiln used for steam curing of prefabricated concrete components. Background Art

[0002] With the acceleration of the industrialization and modernization of the construction industry, precast concrete components have been widely used in various construction projects due to their advantages of high production efficiency, controllable quality, and large-scale production. From prefabricated buildings in residential areas to the construction of large commercial complexes, to the construction of infrastructure such as bridges, precast concrete components play an important role. In the production process of precast concrete components, steam curing is a vital link. It can significantly improve the early strength of concrete, shorten the production cycle of components, and put precast components into use faster, thereby speeding up the construction progress of the entire construction project.

[0003] In the prior art, there is a curing kiln for finished concrete bricks, such as the patent number CN221912521U; it includes a plurality of kiln bodies, a kiln door is installed on the kiln body, a plurality of supporting parts are fixedly installed inside the kiln body, and a heating port is provided on the side of the kiln body away from the kiln door; a heating furnace, the heating furnace is connected to the blower through a hot air inlet pipe, the blower is fixedly installed on the top of the heating furnace, one end of a hot air outlet pipe is installed on the blower, the other end of the hot air outlet pipe is connected to a second main pipe, one end of a plurality of second branch pipes are installed on the second main pipe, and the other end of the second branch pipe is fixedly connected to the heating port; thereby, the temperature in the kiln body reaches the required temperature, and the temperature is maintained with less influence on the humidity, so that the curing effect of the bricks is better.

[0004] Although the above patent can cure concrete products, there are still some problems. The heating position of the concrete products is fixed, which may lead to poor heating effect on some concrete products, thus affecting the curing effect of the concrete products. At the same time, when the concrete products are taken out, the heat in the kiln body may dissipate faster, thereby affecting the temperature in the kiln body. For this reason, the present invention provides a three-dimensional curing kiln for steam curing of precast concrete components. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a three-dimensional curing kiln for steam curing of precast concrete components, which solves the problem that the heating position of concrete products is fixed, which may result in poor heating effect on some concrete products, thereby affecting the curing effect of the concrete products. At the same time, when the concrete products are taken out, the heat in the kiln body may dissipate faster, thereby affecting the temperature in the kiln body.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a three-dimensional curing kiln for steam curing of precast concrete components, comprising a kiln body, a partition plate is fixedly installed at the bottom end of the inner wall of the kiln body, two slopes are arranged at the bottom end of the inner wall of the kiln body, a set of three-dimensional placing frames are fixedly installed at the top ends of the two slopes, a steam spray assembly is arranged on the inner wall of the kiln body, and a closing assembly is arranged at the top end of the kiln body;

[0007] The steam spray assembly comprises two groups of steam spray pipes, the outer walls of the two groups of steam spray pipes are fixedly mounted with rotating rods, one end of the outer walls of the two groups of rotating rods are respectively rotatably connected to two connecting rods, the outer wall of one of the two groups of steam spray pipes is fixedly mounted with a first gear, and the outer walls of the two first gears are meshed with movable racks;

[0008] The closing assembly comprises a movable cover plate, and the movable cover plate is slidably arranged on the top of the kiln body.

[0009] Preferably, the outer walls of the two groups of steam injection pipes are provided with nozzles, and the two groups of steam injection pipes are rotatably installed between the kiln body and the opposite side of the partition plate. One end of the outer wall of the two groups of steam injection pipes passes through the outer wall of the kiln body and is fixedly connected with a rotating joint.

[0010] Preferably, a second gear is rotatably mounted on the outer wall of the kiln body, the two movable racks are meshed with the second gear, and the outer walls of the two movable racks are slidably connected with fixed blocks for supporting and limiting the movable racks.

[0011] Preferably, the four fixed blocks are all fixedly connected to the outer wall of the kiln body, an electric push rod is fixedly installed on the outer wall of the kiln body, and the output end of the electric push rod is fixedly connected to one end of the outer wall of one of the two moving racks.

[0012] Preferably, two slide grooves are provided at the top of the kiln body, and sliders are slidably provided at the bottom ends of the inner walls of the two slide grooves, and the two sliders are fixedly connected to the movable cover plate. A casing is fixedly installed on both sides of the outer wall of the kiln body, and a threaded screw is rotatably installed on the inner wall of the casing.

[0013] Preferably, the outer wall of the threaded screw is threadedly connected to a connecting block, the connecting block is movably inserted in the inner wall of the casing, the connecting block is fixedly connected to the movable cover plate, the outer wall of the casing is fixedly mounted with a motor, the output shaft of the motor passes through the inner wall of the casing and is fixedly connected to one end of the outer wall of the threaded screw.

[0014] Preferably, a feeding trough is provided through the outer wall of the partition plate, and an electric movable door is fixedly installed on one side of the outer wall of the partition plate.

[0015] Preferably, a waste water trough is provided at the bottom ends of the two slopes, and two drain valves are provided on both sides of the outer wall of the kiln body, and the two drain valves are communicated with the waste water trough.

[0016] Beneficial Effects

[0017] The present invention provides a three-dimensional curing kiln for steam curing of prefabricated concrete components. Compared with the prior art, it has the following beneficial effects:

[0018] 1. The three-dimensional curing kiln used for steam curing of precast concrete components has a steam source connected to the steam spray pipe through a rotary joint to provide steam for the concrete products in the kiln body. The electric push rod is started, which pushes a moving rack to move, and the moving rack drives the second gear to rotate during the movement, and the second gear drives another moving rack to move. The two moving racks drive the two first gears to rotate during the movement, and then drive the steam spray pipe connected to them to rotate, and the steam spray pipe drives the rotating rod to rotate, and the rotating rod drives other rotating rods and steam spray pipes to rotate through the connecting rod, and then drives the two groups of steam spray pipes to rotate within a certain range. Through the extension and retraction of the electric push rod, the two groups of steam spray pipes are driven to swing within a certain range, changing the steam spray angle, avoiding the uneven heating of the precast concrete components due to the fixed heating position, greatly improving the curing effect, and ensuring the stable quality of the precast concrete components.

[0019] 2. In the three-dimensional curing kiln used for steam curing of precast concrete components, when it is necessary to take out the concrete products in the kiln body, the concrete products on the three-dimensional placement rack are first transported to one side of the partition plate by using a feeding trolley, and then the electric movable door is closed to seal the feeding trough on the partition plate, and then the two motors are turned on, and the two motors drive the two threaded screws to rotate simultaneously, thereby driving the movable cover plate to move, so that the concrete products on the other side of the partition plate are exposed, and then the concrete products can be taken out, which can effectively prevent a large amount of heat from directly contacting the external space from the steam of the kiln body at the same time, resulting in serious heat loss in the kiln body, reducing the speed of heat dissipation to the outside, and maintaining a stable temperature environment in the kiln body. Compared with directly opening the kiln body to take out materials, this step-by-step operation method can better maintain the temperature of the remaining space in the kiln, reduce the influence of heat loss on other concrete products being cured, help to ensure the stability of the overall curing environment, reduce energy consumption, and improve energy utilization efficiency.

[0020] 3. In the three-dimensional curing kiln used for steam curing of concrete prefabricated components, the condensed water generated during the curing process flows into the wastewater tank along the slope and can be discharged from the kiln body through the drain valve. Opening the electric sliding door facilitates the operation of the prefabricated components from one side of the partition plate, and can timely discharge the condensed water generated during the curing process to prevent the accumulation of water from causing adverse effects on the prefabricated components, while also helping to keep the environment in the kiln clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall structure of another perspective of the present invention;

[0023] Figure 3 It is a schematic diagram of the internal structure of the kiln body of the present invention;

[0024] Figure 4 A schematic diagram of the kiln structure from another perspective of the present invention;

[0025] Figure 5 is a cross-sectional schematic diagram of a kiln body of the present invention;

[0026] Figure 6 It is a schematic diagram of the steam injection assembly of the present invention;

[0027] Figure 7 It is a schematic diagram of the closing component of the present invention.

[0028] In the figure: 1. kiln body; 2. partition plate; 3. three-dimensional placement rack; 4. slope; 5. wastewater tank; 6. drain valve; 7. steam spray assembly; 71. steam spray pipe; 72. rotating rod; 73. rotary joint; 74. connecting rod; 75. first gear; 76. moving rack; 77. fixed block; 78. electric push rod; 79. second gear; 8. closing assembly; 81. casing; 82. threaded screw; 83. connecting block; 84. motor; 85. moving cover; 86. slide groove; 87. slider; 9. electric moving door. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The present invention provides two technical solutions:

[0031] Figure 1-Figure 7 The first embodiment is shown: a three-dimensional curing kiln for steam curing of precast concrete components, comprising a kiln body 1, a partition plate 2 is fixedly installed at the bottom end of the inner wall of the kiln body 1, two slopes 4 are arranged at the bottom end of the inner wall of the kiln body 1, a set of three-dimensional placement frames 3 are fixedly installed at the top of the two slopes 4, a steam injection assembly 7 is arranged on the inner wall of the kiln body 1, and a closing assembly 8 is arranged at the top of the kiln body 1;

[0032] The steam injection assembly 7 includes two groups of steam injection pipes 71. The outer walls of the two groups of steam injection pipes 71 are fixedly installed with rotating rods 72. One end of the outer walls of the two groups of rotating rods 72 are rotatably connected to two connecting rods 74. When one steam injection pipe 71 rotates, it can drive the rotating rod 72 to rotate. The rotating rod 72 then drives the other rotating rods 72 and the steam injection pipes 71 to rotate through the connecting rods 74. The outer wall of one of the two groups of steam injection pipes 71 is fixedly installed with a first gear 75. The outer walls of the two first gears 75 are meshed with movable racks 76. When the movable racks 76 move, they can drive the first gear 75 to rotate. The first gear 75 then drives the steam injection pipe 71 to rotate.

[0033] The closing assembly 8 comprises a movable cover plate 85 which is slidably arranged on the top of the kiln body 1 .

[0034] The outer walls of the two groups of steam injection pipes 71 are both provided with nozzles. The two groups of steam injection pipes 71 are both rotatably installed between the kiln body 1 and the opposite side of the partition plate 2. One end of the outer wall of the two groups of steam injection pipes 71 passes through the outer wall of the kiln body 1 and are fixedly connected with a rotating joint 73. The rotating joint 73 is a prior art. When the steam injection pipe 71 rotates, it can continuously increase steam for the steam injection pipe 71.

[0035] A second gear 79 is rotatably mounted on the outer wall of the kiln body 1 , and two movable racks 76 are meshed with the second gear 79 . The outer walls of the two movable racks 76 are slidably connected with fixed blocks 77 for supporting and limiting the movable racks 76 .

[0036] The four fixed blocks 77 are all fixedly connected to the outer wall of the kiln body 1. An electric push rod 78 is fixedly installed on the outer wall of the kiln body 1. The output end of the electric push rod 78 is fixedly connected to one end of the outer wall of one of the two moving racks 76. The electric push rod 78 is a prior art. When the electric push rod 78 drives a moving rack 76 to move, this moving rack 76 will drive the second gear 79 to rotate, and the second gear 79 can then drive the other moving rack 76 to move.

[0037] Figure 1-Figure 7 A second embodiment is shown, which mainly differs from the first embodiment in that two slide grooves 86 are provided at the top of the kiln body 1, and sliders 87 are slidably provided at the bottom ends of the inner walls of the two slide grooves 86, and the two sliders 87 are fixedly connected to the movable cover plate 85. The setting of the sliders 87 and the slide grooves 86 reduces the friction force on the movable cover plate 85 when it moves, and the movable cover plate 85 can close the opening of the kiln body 1, and a casing 81 is fixedly installed on both sides of the outer wall of the kiln body 1, and a threaded screw 82 is rotatably installed on the inner wall of the casing 81.

[0038] The outer wall of the threaded screw 82 is threadedly connected to a connecting block 83, and the connecting block 83 is movably inserted into the inner wall of the casing 81. The connecting block 83 is fixedly connected to the movable cover 85. The outer wall of the casing 81 is fixedly installed with a motor 84. The output shaft of the motor 84 passes through the inner wall of the casing 81 and is fixedly connected to one end of the outer wall of the threaded screw 82.

[0039] A feeding trough is provided through the outer wall of the partition plate 2, and a feeding trolley can enter into the kiln body 1 through the feeding trough, so as to transport the concrete products on the three-dimensional placement rack 3. An electric movable door 9 is fixedly installed on one side of the outer wall of the partition plate 2. The electric movable door 9 is a prior art and can drive the sealing door panel to move in translation through a power source, so as to complete the sealing of the feeding trough.

[0040] A wastewater trough 5 is provided at the bottom of the two slopes 4. The cooling water generated by the condensation of steam can slide from the slope 4 to the wastewater trough 5, and then the condensed water can be discharged from the kiln body 1 through the drain valve 6. Two drain valves 6 are provided on both sides of the outer wall of the kiln body 1, and the two drain valves 6 are interconnected with the wastewater trough 5.

[0041] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0042] During operation, when the concrete products need to be cured, the concrete products are first delivered to the three-dimensional placement rack 3 by a feeding trolley. Then, after the placement is completed, the electric movable door 9 and the movable cover 85 are closed to keep the internal space of the kiln body 1 in a closed state. The steam source is connected to the steam injection pipe 71 through a rotary joint 73 to provide steam for the concrete products in the kiln body 1. The electric push rod 78 is started, which pushes a moving rack 76 to move. During the movement of the moving rack 76, the second gear 79 is driven to rotate. The second gear 79 then drives another moving rack 76 to move. During the movement of the two moving racks 76, the two first gears 75 are driven to rotate, thereby driving the steam injection pipe 71 connected thereto to rotate. The steam injection pipe 71 then drives the rotating rod 72 to rotate. The rotating rod 72 drives the other rotating rods 72 and the steam injection pipe 71 to rotate through the connecting rod 74, thereby driving the two groups of steam injection pipes 71 to rotate within a certain range. The electric push rod 78 is extended and retracted, thereby driving the two groups of steam injection pipes 71 to swing within a certain range, changing the steam injection angle, avoiding uneven heating of the precast concrete components due to the fixed heating position, greatly improving the curing effect, ensuring the stable quality of the precast concrete components, and the condensed water generated during the curing process flows into the wastewater tank 5 along the slope 4, and can be discharged from the kiln body 1 through the drain valve 6. Opening the electric movable door 9 facilitates the operation of the prefabricated components from one side of the partition plate 2, and can timely discharge the condensed water generated during the curing process to prevent the adverse effects of water accumulation on the prefabricated components. It is also beneficial to keep the environment in the kiln clean and tidy. When the concrete products are cured and the concrete products in the kiln body 1 need to be taken out, the electric movable door 9 is opened first, and then the feeding trolley is moved to the three-dimensional placement rack 3. The concrete products on the three-dimensional placement rack 3 are first transported to one side of the partition plate 2 by the feeding trolley, and then the electric movable door 9 is closed to seal the feeding trough on the partition plate 2, and then the two motors 84 are turned on, and the two motors 84 drive the two threaded screws 82 At the same time, it rotates, thereby driving the movable cover plate 85 to move, so that the concrete product on the other side of the partition plate 2 is exposed, and then the concrete product can be taken out. This can effectively prevent a large amount of heat from directly contacting the external space from the steam of the kiln body 1 at the same time, resulting in serious heat loss in the kiln body 1, reducing the speed of heat dissipation to the outside, and maintaining a stable temperature environment in the kiln body 1. Compared with directly opening the kiln body 1 to take out materials, this step-by-step operation method can better maintain the temperature of the remaining space in the kiln, reduce the impact of heat loss on other concrete products being cured, and help to ensure the stability of the overall curing environment, reduce energy consumption, and improve energy utilization efficiency.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-dimensional curing kiln for steam curing of precast concrete components, comprising a kiln body (1), a partition plate (2) fixedly mounted on the bottom end of the inner wall of the kiln body (1), two slopes (4) arranged on the bottom end of the inner wall of the kiln body (1), a set of three-dimensional placement frames (3) fixedly mounted on the top ends of the two slopes (4), characterized in that: The inner wall of the kiln body (1) is provided with a steam injection component (7), and the top of the kiln body (1) is provided with a closing component (8); The steam injection assembly (7) comprises two groups of steam injection pipes (71), the outer walls of the two groups of steam injection pipes (71) are fixedly mounted with rotating rods (72), one end of the outer walls of the two groups of rotating rods (72) are respectively rotatably connected to two connecting rods (74), the outer wall of one of the two groups of steam injection pipes (71) is fixedly mounted with a first gear (75), and the outer walls of the two first gears (75) are both meshed with movable racks (76); The closing assembly (8) comprises a movable cover plate (85), and the movable cover plate (85) is slidably arranged on the top end of the kiln body (1).

2. A three-dimensional curing kiln for steam curing of precast concrete components according to claim 1, characterized in that: The outer walls of the two groups of steam injection pipes (71) are both provided with nozzles. The two groups of steam injection pipes (71) are both rotatably installed between the kiln body (1) and the opposite side of the partition plate (2). One end of the outer wall of the two groups of steam injection pipes (71) passes through the outer wall of the kiln body (1) and is fixedly connected with a rotating joint (73).

3. The three-dimensional curing kiln for steam curing of precast concrete components according to claim 1, characterized in that: A second gear (79) is rotatably mounted on the outer wall of the kiln body (1), and the two movable racks (76) are both meshed with the second gear (79). The outer walls of the two movable racks (76) are both slidably connected with fixed blocks (77) for supporting and limiting the movable racks (76).

4. A three-dimensional curing kiln for steam curing of precast concrete components according to claim 3, characterized in that: The four fixed blocks (77) are all fixedly connected to the outer wall of the kiln body (1), and an electric push rod (78) is fixedly installed on the outer wall of the kiln body (1). The output end of the electric push rod (78) is fixedly connected to one end of the outer wall of one of the two moving racks (76).

5. The three-dimensional curing kiln for steam curing of precast concrete components according to claim 1, characterized in that: Two slide grooves (86) are provided at the top of the kiln body (1), and sliders (87) are slidably provided at the bottom ends of the inner walls of the two slide grooves (86), and the two sliders (87) are fixedly connected to the movable cover plate (85). A casing (81) is fixedly installed on both sides of the outer wall of the kiln body (1), and a threaded screw (82) is rotatably installed on the inner wall of the casing (81).

6. A three-dimensional curing kiln for steam curing of precast concrete components according to claim 5, characterized in that: The outer wall of the threaded screw (82) is threadedly connected to a connecting block (83), the connecting block (83) is movably inserted into the inner wall of the casing (81), the connecting block (83) is fixedly connected to the movable cover plate (85), and a motor (84) is fixedly installed on the outer wall of the casing (81), the output shaft of the motor (84) passes through the inner wall of the casing (81) and is fixedly connected to one end of the outer wall of the threaded screw (82).

7. The three-dimensional curing kiln for steam curing of precast concrete components according to claim 1, characterized in that: A feeding trough is provided through the outer wall of the partition plate (2), and an electric movable door (9) is fixedly mounted on one side of the outer wall of the partition plate (2).

8. The three-dimensional curing kiln for steam curing of precast concrete components according to claim 1, characterized in that: A wastewater trough (5) is provided at the bottom of the two slopes (4), and two drain valves (6) are provided on both sides of the outer wall of the kiln body (1), and the two drain valves (6) are communicated with the wastewater trough (5).

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