Method for producing precast beam through steam curing
Through the use of mobile sheds in the smart beam farm, the rail system moves in the vertical movement, which solves the problem of high manufacturing costs in the existing technology, realized efficient use of equipment and space, and significantly reduced costs.
Patent Information
- Application Number
- CN202411285206.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-01-24
AI Technical Summary
The steam health technology of existing smart beam yards has caused excessive manufacturing costs, which is mainly due to the need to move a large number of prefabricated beam pedestals and large-area steam health sheds, which increases the demand for equipment and space.
A movable steam-curing shed is used, which can be moved back and forth in the longitudinal direction through rails. One steam-curing shed can serve multiple prefabricated beam production platforms at the same time, reducing the requirements for equipment and space.
It reduces the manufacturing cost of the smart beam field, improves production efficiency and equipment utilization, and significantly reduces costs by sharing multiple pedestals in one steam curing shed.
Smart Images
Figure CN119347937A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of prefabricated beam processing, in particular to a method for producing prefabricated beams by utilizing steam curing. Background Art
[0002] In recent years, smart beam yards have emerged with steam curing functions, but the curing sheds of smart beam yards are fixed on site, and the precast beam pedestals need to be moved to achieve curing of precast beams. Because precast beams are cast with concrete and are extremely heavy, ordinary mobile vehicles are difficult to carry and move, and the cost of the matching mobile vehicles is very high. In addition, if each precast beam pedestal wants to be moved, it must be converted into a mobile type, which further increases the cost. This type of curing shed needs to cover a large space to meet the simultaneous use of a large number of precast beam pedestals, which also increases the cost. After the space is large, it is also difficult to maintain the humidity and temperature in various places in the shed. Therefore, the existing smart beam yard has the problem of high manufacturing cost of the beam yard with steam curing technology. Summary of the invention
[0003] The present invention provides a method for producing prefabricated beams using steam curing, the purpose of which is to solve the technical problem of high manufacturing costs in existing smart beam yards as mentioned in the background art. The method provided by the present invention uses a movable steam curing shed that can be moved forward and backward in the longitudinal direction through a track, and a row of multiple pedestals can share one shed, which greatly reduces the cost.
[0004] The present invention provides the following technical solutions to achieve the above purpose: A method for producing precast beams using steam curing, comprising producing a pedestal of a plurality of precast beams arranged in a row and spaced apart, comprising the following steps: S1: Arrange tracks on both sides of the precast beam production pedestal; S2: Arrange a movable steaming shed on the track; S3: Arrange a steam pipeline in the steaming shed, and the inlet of the steam pipeline is a steam inlet arranged through the side wall of the steaming shed; S4: Move the steam boiler to the side of the steam-curing shed, and connect the steam outlet of the steam boiler to the steam inlet; S5: Move the steaming and curing shed to cover a precast beam production pedestal, and complete the precast beam production on the precast beam production pedestal; S6: After placing the concrete test piece in the steam curing shed, close the doors at the front and rear ends of the steam curing shed, add fuel and water to the steam boiler to generate steam, and the steam enters the steam curing shed through the steam inlet and the steam pipe to cure the precast beams; S7: After curing for a period of time, take out the concrete specimen for testing, and judge whether the tension strength of the precast beam meets the requirement based on the test result of the concrete specimen. If not, continue curing until the tension strength of the precast beam meets the requirement. When the tension strength of the precast beam meets the requirement, the production of the precast beam is completed, open the door to release the steam and disconnect the steam outlet of the steam boiler from the steam inlet. S8: Move the steaming and curing shed to another precast beam production base, and repeat steps S5-S7 and S4 to produce the next precast beam.
[0005] In the aforementioned method of producing prefabricated beams using steam curing, the steam curing shed is made of rock wool sandwich color steel plate material, which provides good thermal insulation performance and locks the steam temperature and humidity inside the steam curing shed.
[0006] In the aforementioned method of producing prefabricated beams using steam curing, the movement between the steaming shed and the track is achieved by arranging multiple sets of electric drive rollers at the bottom of the steaming shed, the electric drive rollers are connected to a travel motor, and the travel motor is connected to a generator; the generator is arranged outside the steaming shed, and after the generator starts to generate electricity, the travel motor and the electric drive rollers are started, so that the steaming shed moves on the track; the start and stop of the travel motor and the electric drive rollers are controlled by a travel controller.
[0007] In the aforementioned method of producing prefabricated beams using steam curing, the steam pipe is arranged in a "U" shape on the inner wall of the steaming shed, and multiple steam holes are arranged on the steam pipe; the bottom of the transversely arranged steam pipe is supported by a plurality of bases and arranged on the inner wall of the steaming shed.
[0008] In the aforementioned method for producing prefabricated beams using steam curing, temperature and humidity sensing devices are arranged in the steam curing shed.
[0009] In the aforementioned method for producing precast beams using steam curing, in S4, the steam boiler is moved by a gantry crane.
[0010] In the aforementioned method for producing precast beams using steam curing, one steam boiler provides steam for a plurality of steam curing sheds.
[0011] In the aforementioned method for producing precast beams using steam curing, in S7, the period of time is 18-20 hours.
[0012] In the above-mentioned method for producing prefabricated beams by steam curing, the lower part of the steam curing shed is sealed with rubber strips to seal the gap between the steam curing shed and the lower part of the track to prevent the loss of steam in the steam curing shed.
[0013] In the aforementioned method for producing precast beams using steam curing, in S1, the arrangement length of the track extends from the front end to the rear end of a row of multiple precast beam production pedestals arranged at intervals.
[0014] Compared with the prior art, the method for producing prefabricated beams by steam curing provided by the present invention has the following beneficial effects: when the present invention is carried out, after the prefabricated beam on a pedestal is completed, it can be moved to another pedestal to carry out the manufacture and steam curing of the next prefabricated beam; the size of a steaming shed of the present invention can be controlled to be able to operate one pedestal, the manufacturing cost is low, and multiple pedestals can share one steaming shed, which greatly reduces the cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a flow chart of the main steps of the present invention; Figure 2 This is a schematic diagram of the main structure of the steaming shed; Figure 3 This is a schematic diagram of the boiler connection structure; Figure numerals: 1-mobile steaming shed; 101-prefabricated beam production pedestal; 2-steam pipe; 201-base; 3-steam inlet; 4-generator; 401-travel controller; 5-track; 6-travel motor; 601-connecting seat; 7-bottom plate; 701-steam boiler; 8-bracket; 801-monitoring screen. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0017] Embodiment. A method for producing prefabricated beams using steam curing, the main steps of which are as follows Figure 1 As shown, the reference of the mobile steam curing shed used is Figure 2-3 As shown, the implementation structure of the mobile steam curing shed includes a mobile steam curing shed 1, a precast beam production pedestal 101, a steam pipe 2, a base 201, a steam inlet 3, a generator 4, a travel controller 401, a track 5, a travel motor 6, a connecting seat 601, a base plate 7, a steam boiler 701, a bracket 8, and a monitoring screen 801.
[0018] Specifically, the method for producing precast beams using steam curing is applicable to a production pedestal of a plurality of precast beams arranged in a row and spaced apart, and the steps are as follows: S1: Arrange tracks on both sides of the precast beam production pedestal; The track is arranged from the front end to the rear end of a row of precast beam production pedestals arranged at intervals, ensuring that the subsequent steaming and curing sheds can be shared by the precast beam production pedestals in the row; the track uses 5*3cm channel steel as a moving track, so that the steaming and curing shed can move longitudinally along the track in the beam yard; S2: Arrange a movable steaming shed on the track; The steaming shed is made of rock wool sandwich color steel plate, which provides good thermal insulation performance and locks the steam temperature and humidity inside the steaming shed; the lower part of the steaming shed uses rubber strips to seal the gap between the steaming shed and the lower part of the track to prevent the loss of steam in the steaming shed; it should be noted that the front and rear ends of the steaming shed are equipped with left and right doors, and the door structure is a conventional structure. When the steaming shed is moved, the door is opened to form a passage; when steam curing is required, the front and rear doors are closed to form a closed space; Among them, temperature and humidity sensing devices are arranged in the steaming and curing shed; existing technologies are used to realize real-time monitoring of various indicators in the steaming and curing shed, which is convenient for adjusting the boiler operation status and controlling the curing time. Through monitoring data, the operation status of the steam generating equipment is adjusted to realize dynamic control, ensure curing conditions and reduce energy loss; The movement between the steaming shed and the track is achieved by arranging multiple groups of electric drive rollers at the bottom of the steaming shed, the electric drive rollers are connected to a travel motor, and the travel motor is connected to a generator; the generator is arranged outside the steaming shed, and after the generator starts to generate electricity, the travel motor and the electric drive rollers are started, so that the steaming shed moves on the track; the start and stop of the travel motor and the electric drive rollers are controlled by a travel controller; S3: Arrange a steam pipeline in the steaming shed, and the inlet of the steam pipeline is a steam inlet arranged through the side wall of the steaming shed; The steam pipe is arranged in a "U" shape on the inner wall of the steaming shed, and multiple steam holes are arranged on the steam pipe; the bottom of the transversely arranged steam pipe is supported by a plurality of bases and arranged on the inner wall of the steaming shed; the "U" shape arrangement makes the steam discharged from the steam pipe more uniform in the steaming shed, the humidity and temperature at various places are more uniform, and the steam can quickly fill the entire steaming shed; the steam pipe is made of galvanized steel pipe; S4: Move the steam boiler to the side of the steam-curing shed, and connect the steam outlet of the steam boiler to the steam inlet; Among them, one steam boiler provides steam for multiple steaming and curing sheds; the mobile steam boiler is carried out through a gantry crane, which is provided by the beam yard; S5: Move the steaming and curing shed to cover a precast beam production pedestal, and complete the precast beam production on the precast beam production pedestal; S6: After placing the concrete test piece in the steam curing shed, close the doors at the front and rear ends of the steam curing shed, add fuel and water to the steam boiler to generate steam, and the steam enters the steam curing shed through the steam inlet and the steam pipe to cure the precast beams; The steam boiler uses biomass compressed pellets made from straw, rice husks, peanut shells and forestry waste as combustion energy. This fuel is easy to transport and store, has high combustion energy and is pollution-free. The burnt ash can be used as organic fertilizer for greening construction. S7: After curing for 18-20 hours, take out the concrete specimen for testing, and judge whether the tension strength of the precast beam meets the requirements based on the test results of the concrete specimen. If not, continue curing until the tension strength of the precast beam meets the requirements. When the tension strength of the precast beam meets the requirements, the production of the precast beam is completed, open the door to release steam and disconnect the steam outlet of the steam boiler from the steam inlet. Preferably, curing for 20 hours is the best curing time after actual measurement. In actual measurement, in winter, it takes 4 days for conventional precast T-beams to reach the tension strength. After the above technology is actually applied, it can be guaranteed that the tension strength is reached within 20 hours, which greatly improves the production speed of the beam yard. S8: Move the steaming and curing shed to another precast beam production base, and repeat steps S5-S7 and S4 to produce the next precast beam.
[0019] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical solution and concept of the present application within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.
Claims
1. A method for producing precast beams using steam curing, comprising a plurality of precast beam production stands arranged in a row and spaced apart, characterized in that: The steps include: S1: Arrange tracks on both sides of the precast beam production pedestal; S2: Arrange a movable steaming shed on the track; S3: Arrange a steam pipeline in the steaming shed, and the inlet of the steam pipeline is a steam inlet arranged through the side wall of the steaming shed; S4: Move the steam boiler to the side of the steam-curing shed, and connect the steam outlet of the steam boiler to the steam inlet; S5: Move the steaming and curing shed to cover a precast beam production pedestal, and complete the precast beam production on the precast beam production pedestal; S6: After placing the concrete test piece in the steam curing shed, close the doors at the front and rear ends of the steam curing shed, add fuel and water to the steam boiler to generate steam, and the steam enters the steam curing shed through the steam inlet and the steam pipe to cure the precast beams; S7: After curing for a period of time, take out the concrete specimen for testing, and judge whether the tension strength of the precast beam meets the requirement based on the test result of the concrete specimen. If not, continue curing until the tension strength of the precast beam meets the requirement. When the tension strength of the precast beam meets the requirement, the production of the precast beam is completed, open the door to release the steam and disconnect the steam outlet of the steam boiler from the steam inlet. S8: Move the steaming and curing shed to another precast beam production base, and repeat steps S5-S7 and S4 to produce the next precast beam.
2. The method for producing prefabricated beams by steam curing according to claim 1, characterized in that: The steaming shed is made of rock wool sandwich color steel plate, which provides good thermal insulation performance and locks the steam temperature and humidity inside the steaming shed.
3. The method for producing prefabricated beams by steam curing according to claim 1, characterized in that: The movement between the steaming shed and the track is achieved by arranging multiple groups of electric drive rollers at the bottom of the steaming shed, the electric drive rollers are connected to a travel motor, and the travel motor is connected to a generator; the generator is arranged outside the steaming shed, and after the generator starts to generate electricity, the travel motor and the electric drive rollers are started, so that the steaming shed moves on the track; the start and stop of the travel motor and the electric drive rollers are controlled by a travel controller.
4. The method for producing precast beams by steam curing according to claim 1, characterized in that: The steam pipeline is arranged in a "U" shape on the inner wall of the steaming shed, and multiple steam holes are arranged on the steam pipeline; the bottom of the transversely arranged steam pipeline is supported by a plurality of bases and arranged on the inner wall of the steaming shed.
5. The method for producing prefabricated beams by steam curing according to claim 1, characterized in that: Temperature and humidity sensing devices are arranged in the steaming shed.
6. The method for producing precast beams by steam curing according to claim 1, characterized in that: In S4, the steam boiler is moved by a gantry crane.
7. The method for producing precast beams by steam curing according to claim 1, characterized in that: One steam boiler provides steam for multiple curing sheds.
8. The method for producing precast beams by steam curing according to claim 1, characterized in that: In S7, the period is 18-20 hours.
9. The method for producing precast beams by steam curing according to claim 1, characterized in that: The lower part of the steaming shed is sealed with rubber strips to seal the gap between the steaming shed and the lower part of the track to prevent the steam in the steaming shed from being lost.
10. The method for producing prefabricated beams by steam curing according to claim 1, characterized in that: In S1, the arrangement length of the track extends from the front end to the rear end of a row of multiple precast beam production pedestals arranged at intervals.