A pit type concrete product curing system

Abstract

The utility model provides a kind of ground kiln type concrete product curing system, including steam curing kiln, steam curing pipeline and traction device;Steam curing kiln is separated into static region, heating zone, constant temperature zone, cooling zone by partition from front, multiple tracks are equipped in steam curing kiln, and sealing door corresponding to each track is equipped on partition;Each track is equipped with traction device, and independent curing pipeline is arranged in heating zone, constant temperature zone, cooling zone, and curing pipeline is respectively connected with steam equipment by electric control valve corresponding connection.This application sets up independent sealing door corresponding to each track, opens the sealing door of corresponding track according to the concrete product required to be transferred, avoids excessive mixing of steam in adjacent two regions, reduces temperature change of each region in the process of concrete transfer, so as to improve the quality of concrete product.

Description

Technical Field

[0001] This utility model belongs to the technical field of steam curing, specifically relating to a ground kiln-type concrete product curing system. Background Technology

[0002] In the production process of concrete products, the curing stage is crucial, directly affecting the quality and performance of the concrete products. Steam curing generally involves four processes: pre-curing, heating, heat preservation, and cooling. Therefore, roller shutters are required in each area. When concrete products need to be moved during the actual curing process, opening the roller shutters causes steam to mix between adjacent areas, resulting in an unstable curing environment in each area. Parameters such as temperature and humidity are difficult to control precisely, leading to uneven strength development of the concrete products and making them prone to defects such as cracks.

[0003] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and to provide a ground kiln type concrete product curing system.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A ground-mounted kiln-type concrete product curing system includes a steam curing kiln, steam curing pipelines, and a traction device. The steam curing kiln is divided into a static area, a heating area, a constant temperature area, and a cooling area by partitions. Multiple parallel tracks are provided inside the steam curing kiln, running through the static area, heating area, constant temperature area, and cooling area, so that the steam curing vehicle can pass through the static area, heating area, constant temperature area, and cooling area in sequence along the tracks. Sealing doors corresponding to each track are provided on the partitions.

[0007] In front of the static zone, heating zone, constant temperature zone, and cooling zone, a traction device is provided for each of the tracks. Independent maintenance pipelines are provided in the heating zone, constant temperature zone, and cooling zone, and the maintenance pipelines are respectively connected to the steam equipment through electric control valves.

[0008] Preferably, temperature sensors are provided in the heating zone, the constant temperature zone, and the cooling zone, and the temperature sensors and the electronically controlled valves are connected to the controller.

[0009] Preferably, the controller is equipped with a display screen.

[0010] Preferably, the traction device includes a telescopic rod and a traction head that are hinged to each other. The traction head is square shell-shaped, and a hinge shaft corresponding to the hinge limiting plate is provided in front of the traction head. The limiting plate includes a horizontal end and an inclined end with the hinge shaft as the dividing point, and the center of gravity of the limiting plate is located in front of the hinge shaft, so that the inclined end extends backward in a tilted manner under normal conditions.

[0011] A limiting rod corresponding to the inclined end is provided in the middle of the steam curing cart. In response to the telescopic rod pushing the traction head forward, the inclined end rotates around the hinge axis to pass the limiting rod, and returns to its normal rotation state after passing the limiting rod, so as to stop the limiting rod during the retraction of the telescopic rod.

[0012] Preferably, longitudinal rollers are provided at the front and rear ends of the traction head, and horizontal rollers are provided on both sides of the traction head.

[0013] Preferably, the width of the limiting plate is adapted to the height of the inner cavity of the traction head so that the horizontal end is kept horizontal by the bottom of the traction head, and an inclined surface corresponding to the limiting rod is provided in front of the horizontal end.

[0014] Preferably, the sealing door is provided with slides on both sides, a lifting cable is provided in the middle of the sealing door, and a fixed pulley corresponding to the lifting cable is provided above the partition.

[0015] Preferably, the fixed pulleys corresponding to multiple sealing doors on the same partition have a height difference, so that the lifting cables of the multiple sealing doors are redirected by the fixed pulleys and extend parallel in the horizontal direction, and the multiple lifting cables are connected to the lifting device after extending out of the steam curing kiln.

[0016] Preferably, the lifting device includes a winch, a slider, a slide rail, and a slide block;

[0017] Multiple slide rails correspond one-to-one with multiple lifting cables, and multiple sliders are slidably assembled on horizontally extending slide rails and fixedly connected to the corresponding lifting cables;

[0018] The slide block is slidably mounted on a plurality of slide rails and is correspondingly connected to the winch to drive the slide block to move along the slide rails;

[0019] The slide block is provided with an extension plate corresponding to the slider. The extension plate extends toward the side of the slider away from the slide rail. The extension plate is provided with a plurality of pins corresponding to the slider. The slider is provided with a corresponding insertion hole for the pin.

[0020] Preferably, the extension plate is provided with a plurality of driving components that correspond one-to-one with the pins.

[0021] Beneficial effects: This application sets up independent sealing doors for each track. The sealing door of the corresponding track is opened according to the concrete products to be transferred, avoiding excessive mixing of steam in two adjacent areas, reducing temperature changes in each area during concrete transfer, and thus improving the quality of concrete products. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. Wherein:

[0023] Figure 1 A schematic diagram showing the distribution of the steam curing kilns in a specific embodiment provided by this utility model;

[0024] Figure 2 This is a schematic diagram of the installation of the traction device in a specific embodiment provided by this utility model;

[0025] Figure 3 This is a schematic diagram of the assembly of the sealing door in a specific embodiment of this utility model;

[0026] Figure 4 This is a simplified structural diagram of the traction device in a specific embodiment of the present invention.

[0027] In the diagram: 1. Steam curing kiln; 2. Steam curing cart; 3. Partition; 4. Track; 5. Traction device; 6. Sealing door; 7. Lifting cable; 8. Slide rail; 9. Slide seat; 10. Slider; 11. Drive component; 12. Slide rail; 101. Static area; 102. Heating area; 103. Constant temperature area; 104. Cooling area; 501. Telescopic rod; 502. Traction head; 503. Limiting plate; 504. Longitudinal roller; 505. Horizontal roller. Detailed Implementation

[0028] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art are within the protection scope of this utility model.

[0029] In the description of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected" and "linked" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0030] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0031] like Figure 1-4 As shown, a ground-type concrete product curing system includes a curing kiln 1, curing pipelines, and a traction device 5. The curing kiln 1 is divided into a static zone 101, a heating zone 102, a constant temperature zone 103, and a cooling zone 104 by a partition 3. These zones are arranged linearly. The static zone 101 is used to store poured concrete products for subsequent curing. Multiple parallel tracks 4, which can be railway rails, are installed within the curing kiln 1, running through the static zone 101, heating zone 102, constant temperature zone 103, and cooling zone 104. Curing cars 2 are mounted on these tracks, arranged side-by-side along the tracks in each zone to ensure cyclical curing. The top of the curing cart 2 is a flat surface for holding concrete products. The bottom of the curing cart 2 is equipped with corresponding rails and traveling wheels, which can transport concrete products and drive them to move along the corresponding rails 4. This allows the curing cart 2 to pass through the static area 101, the heating area 102, the constant temperature area 103, and the cooling area 104 along the rails 4 in sequence, thus completing the complete curing process. In this embodiment, the partition 3 is a wall, and insulation layers are provided on both sides of the partition 3 to avoid uneven heat caused by heat conduction from the partition 3. The partition 3 is provided with door openings corresponding to each rail 4, and the door openings are equipped with longitudinally sliding sealing doors 6. The sealing doors 6 of the corresponding rails 4 are opened according to the concrete products to be transported to avoid excessive mixing of steam in adjacent areas.

[0032] In front of the static zone 101, the heating zone 102, the constant temperature zone 103, and the cooling zone 104, a traction device 5 is provided for each track 4. After the sealing door 6 is opened, the traction device 5 passes through the partition 3 to pull the steam curing car 2 in the previous area to the subsequent area. Of course, a feeding channel and a discharging channel are provided at both ends of the steam curing kiln 1, and a traction device 5 should also be provided at the corresponding feeding channel and discharging channel. This application aims to improve the steam curing kiln 1, so the relevant structure of the feeding channel and the discharging channel is not improved.

[0033] Independent maintenance pipelines are provided in heating zone 102, constant temperature zone 103, and cooling zone 104. In each zone, the maintenance pipelines are distributed in an S-shape above the corresponding zone. Steam outlets are provided on the side of the maintenance pipelines. Each maintenance pipeline is independently connected to the corresponding steam equipment. An electric control valve is provided between the maintenance pipeline and the corresponding steam equipment.

[0034] This allows steam at different temperatures to be supplied to different areas for curing. In one optional embodiment, the steam supplied to the cooling zone 104 is only water vapor and is not heated. Alternatively, to improve the cooling efficiency of the cooling zone 104, a water pump can be connected to the curing pipeline of the cooling zone 104 to replace the steam by spraying water.

[0035] In an optional embodiment, temperature sensors are provided in the heating zone 102, the constant temperature zone 103, and the cooling zone 104. The temperature sensors and the electric control valves are connected to the controller, so that the steam in each zone can be controlled as needed.

[0036] Furthermore, multiple temperature sensors are evenly distributed in each area, and the controller can be a microcontroller or a PLC controller. The controller is equipped with a display screen to digitally display the temperature of each area.

[0037] In an optional embodiment, the traction device 5 includes a telescopic rod 501 and a traction head 502 that are hinged to each other. The telescopic rod 501 can be a pneumatic cylinder or a hydraulic cylinder, and is controlled by a corresponding control element, which can be a solenoid valve and is connected to a controller.

[0038] The traction head 502 is a square shell-shaped structure welded from steel plates. A hinge shaft corresponding to the hinged limiting plate 503 is located at the front of the traction head 502. The hinge shaft is situated within the inner cavity of the traction head 502. The corresponding limiting plate 503 intersects at the center of the traction head 502. A strip-shaped hole corresponding to the limiting plate 503 is provided on the upper wall of the traction head 502. The limiting plate 503 includes a horizontal end and an inclined end, with the hinge shaft as the dividing point. The lower edges of the horizontal and inclined ends transition through a smooth surface concentric with the hinge shaft. The length of the horizontal end is greater than that of the inclined end, thereby ensuring that the center of gravity of the limiting plate 503 is located in front of the hinge shaft, thus... In the normal state, the limiting plate 503 causes the inclined end to tilt backward due to gravity. A limiting rod corresponding to the inclined end is provided in the middle of the steam curing car 2. The limiting rod can be set independently or it can be the main shaft of two traveling wheels. The limiting rod is lower than the height of the inclined end in the normal state. In response to the telescopic rod 501 pushing the traction head 502 forward, the inclined end rotates around the hinge axis to pass the limiting rod, and returns to the normal rotation state after passing the limiting rod. The horizontal end and the bottom of the traction head 502 limit the limiting plate 503 to prevent it from rotating, thereby stopping the limiting rod during the pullback of the telescopic rod 501.

[0039] In this embodiment, longitudinal rollers 504 are respectively provided at the front and rear ends of the traction head 502, and a guide rail extending along the length of the track 4 is provided in the middle to support the longitudinal rollers 504. Furthermore, horizontal rollers 505 are respectively provided on both sides of the traction head 502, thereby avoiding friction between the sides of the traction head 502 and other components, and ensuring that the traction head 502 slides back and forth along the length of the track 4. The longitudinal rollers 504 located at the front can be set independently or coaxially distributed with the rotating shaft of the limiting plate 503.

[0040] The width of the limiting plate 503 is adapted to the height of the inner cavity of the traction head 502, so that in the normal state, the horizontal end is kept horizontal by the bottom of the traction head 502. The horizontal end is provided with an inclined surface corresponding to the limiting rod. In the normal state, the lowest end of the inclined surface is located inside the traction head 502, ensuring that the traction head 502 can be inserted into the bottom of the steam curing car 2.

[0041] In an optional embodiment, the prior art generally controls the lifting and lowering of the sealing door 6 through electronic control components. However, due to the high humidity and temperature inside the steam curing kiln 1, the electronic control circuit is not fully functional, resulting in a short service life for the sealing door 6, which requires frequent maintenance. In this application, a lifting cable 7 is provided to lift the sealing door 6, with the end of the lifting cable 7 extending out of the steam curing kiln 1, thereby avoiding the corrosion of the circuit components by steam.

[0042] The sealing door 6 has slides 8 on both sides, which can be channel steel, thereby limiting the lifting trajectory of the sealing door 6. The sealing door 6 has a lifting cable 7 in the middle, which can be a steel cable. The partition 3 has a fixed pulley corresponding to the lifting cable 7 above it.

[0043] The fixed pulleys corresponding to multiple sealed doors 6 on the same partition 3 have a height difference, so that the lifting cables 7 of the multiple sealed doors 6 are redirected by the fixed pulleys and extend horizontally in parallel. After the multiple lifting cables 7 extend out of the steam curing kiln 1, they are connected to the lifting device. This allows for independent control of each sealed door 6 according to the steam curing conditions. The lifting device includes a winch, a slider 10, a slide rail 12, and a slide block 9. The multiple slide rails 12 extend horizontally in parallel, and each slide rail 12 corresponds to a different lifting cable 7. Each slide rail 12 is equipped with a slider 10, which is slidably mounted on the horizontally extending slide rail 12 and fixedly connected to the corresponding lifting cable 7. Thus, the corresponding slider 10 can be driven as needed. The dynamic sealing door 6 has dovetail groove slide rails 12, with multiple slide rails 12 located on the same support plate. A slide block 9 is slidably mounted on the slide rails 12, corresponding to multiple sliders 10, and connected to a winch to drive the slide block 9 to move along the slide rails 12. An extension plate corresponding to each slider 10 is provided on the slide block 9, extending towards the side of the slider 10 away from the slide rails 12, allowing it to overlap with the slider 10. Multiple pins corresponding to each slider 10 are provided on the extension plate, and corresponding holes are provided on the slider 10. According to actual opening and closing requirements, the corresponding pins are inserted into the slider 10 and the extension plate, enabling precise control. Multiple drive components 11 corresponding to each pin are provided on the extension plate. The drive component 11 can be an electromagnetic push rod, with its driving end connected to a pin, causing the pin to insert or retract from the hole under the drive of the electromagnetic push rod. The drive component 11 and the winch are connected to a controller.

[0044] Furthermore, a sealing sleeve corresponding to the lifting cable 7 is provided on the curing kiln. The sealing sleeve slides and seals with the lifting cable 7 to prevent steam leakage.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be within the scope of protection of the pending claims of the present utility model.

Claims

1. A ground-kiln type concrete product curing system, characterized in that, It includes a steam curing kiln, steam curing pipelines, and a traction device; the steam curing kiln is divided into a static area, a heating area, a constant temperature area, and a cooling area by a partition after being placed in front; multiple parallel tracks are provided in the steam curing kiln, running through the static area, heating area, constant temperature area, and cooling area, so that the steam curing cart can pass through the static area, heating area, constant temperature area, and cooling area in sequence along the tracks; and sealing doors corresponding to each track are provided on the partition. In front of the static zone, heating zone, constant temperature zone, and cooling zone, a traction device is provided for each of the tracks. Independent maintenance pipelines are provided in the heating zone, constant temperature zone, and cooling zone, and the maintenance pipelines are respectively connected to the steam equipment through electric control valves.

2. The underground kiln-type concrete product curing system according to claim 1, characterized in that, Temperature sensors are installed in the heating zone, constant temperature zone, and cooling zone, and the temperature sensors and the electronically controlled valves are connected to the controller.

3. The underground kiln-type concrete product curing system according to claim 2, characterized in that, The controller is equipped with a display screen.

4. The underground kiln-type concrete product curing system according to claim 1, characterized in that, The traction device includes a telescopic rod and a traction head that are hinged to each other. The traction head is square shell-shaped. A hinge shaft corresponding to the hinge limiting plate is provided in front of the traction head. The limiting plate includes a horizontal end and an inclined end with the hinge shaft as the dividing point. The center of gravity of the limiting plate is located in front of the hinge shaft, so that the inclined end extends backward in a tilted manner under normal conditions. A limiting rod corresponding to the inclined end is provided in the middle of the steam curing cart. In response to the telescopic rod pushing the traction head forward, the inclined end rotates around the hinge axis to pass the limiting rod, and returns to its normal rotation state after passing the limiting rod, so as to stop the limiting rod during the retraction of the telescopic rod.

5. The underground kiln-type concrete product curing system according to claim 4, characterized in that, The traction head is provided with longitudinal rollers at both the front and rear ends, and with horizontal rollers on both sides of the traction head.

6. The underground kiln-type concrete product curing system according to claim 4, characterized in that, The width of the limiting plate is adapted to the height of the inner cavity of the traction head so that the horizontal end is kept horizontal by the bottom of the traction head. The horizontal end is provided with an inclined surface corresponding to the limiting rod.

7. The underground kiln-type concrete product curing system according to claim 1, characterized in that, The sealed door is provided with slide rails on both sides, a lifting cable is provided in the middle of the sealed door, and a fixed pulley corresponding to the lifting cable is provided above the partition.

8. The underground kiln-type concrete product curing system according to claim 7, characterized in that, The fixed pulleys corresponding to multiple sealing doors on the same partition have a height difference, so that the lifting cables of the multiple sealing doors are redirected by the fixed pulleys and extend parallel in the horizontal direction. After the multiple lifting cables extend out of the steam curing kiln, they are connected to the lifting device.

9. The underground kiln-type concrete product curing system according to claim 8, characterized in that, The lifting device includes a winch, a slider, a slide rail, and a slide block; Multiple slide rails correspond one-to-one with multiple lifting cables, and multiple sliders are slidably assembled on horizontally extending slide rails and fixedly connected to the corresponding lifting cables; The slide block is slidably mounted on a plurality of slide rails and is correspondingly connected to the winch to drive the slide block to move along the slide rails; The slide block is provided with an extension plate corresponding to the slider. The extension plate extends toward the side of the slider away from the slide rail. The extension plate is provided with a plurality of pins corresponding to the slider. The slider is provided with a corresponding insertion hole for the pin.

10. The underground kiln-type concrete product curing system according to claim 9, characterized in that, The extension plate is provided with multiple driving components that correspond one-to-one with the pins.

Images