CN214353343U - High and cold high-altitude concrete aggregate preheating system - Google Patents
High and cold high-altitude concrete aggregate preheating system Download PDFInfo
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- CN214353343U CN214353343U CN202022089287.3U CN202022089287U CN214353343U CN 214353343 U CN214353343 U CN 214353343U CN 202022089287 U CN202022089287 U CN 202022089287U CN 214353343 U CN214353343 U CN 214353343U
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Abstract
The utility model relates to the technical field of concrete, and discloses an alpine and high-altitude concrete aggregate preheating system, which comprises an aggregate stockpiling shed and a mixing room, wherein an aggregate bin and a fuel steam boiler are arranged in the aggregate stockpiling shed, and a warm steam calandria, a hot water system pipe and a temperature sensor are arranged in the aggregate bin; the warm steam calandria and the hot water system pipe are both connected with a fuel steam boiler through pipelines; the temperature sensor is used for detecting the temperature in the aggregate bin; a mixer and a heating pipeline are arranged in the mixing room, and the heating pipeline is connected with a fuel steam boiler through a pipeline; the aggregate bin is connected with the mixer through an aggregate feeding conveying belt, and a heat-insulating truss is arranged on the outer side of the aggregate feeding conveying belt. The utility model discloses can increase concrete mixing temperature, realize preheating and heating simultaneously, satisfy the requirement of mixing of high and cold high altitude area concrete in winter.
Description
Technical Field
The utility model relates to a concrete technical field, concretely relates to high and cold high altitude concrete aggregate system of preheating.
Background
Concrete is a building material with the widest application and the largest use amount in civil engineering, and concrete with high strength, multiple functions and adaptability to different time periods is designed and manufactured according to preset performance. With the rapid development of various basic constructions such as buildings, railways, water conservancy and electric power, more and more high-cold high-altitude areas are developed for engineering construction, and cold weather lasts for months, so that a great deal of difficulty is brought to construction. The winter construction becomes an important construction task under the requirements of construction environment and construction period, the requirement on the quality of concrete is higher and higher, the concrete is required to be maintained in a casting warehouse surface, the concrete is required to have certain outlet temperature and inlet temperature, and the temperature of the stirred concrete cannot meet the requirement that the inlet temperature is not lower than 5 ℃ in winter in high-cold high-altitude areas, so that the concrete is required to be heated in the production process of the concrete, and the requirement that the outlet temperature meets the standard construction requirement is ensured. The concrete produced by mixing hot water in high-altitude high-sea areas can not meet the requirement that the temperature of an outlet of the concrete is not lower than 12 ℃, the warehousing temperature of the concrete is not lower than 8 ℃, the cementing material can not be heated, the standard requirement of the hot water temperature is not higher than 60 ℃, and the influence of other materials and heat preservation measures is small, so the sandstone aggregate must be preheated before producing the preheated concrete.
In the research of the preheating scheme of the concrete winter mixing system in the alpine and high-altitude areas, the concrete winter mixing system needs to heat water, needs to improve the aggregate temperature in advance, needs to heat positions in the mixing process and the like at the same time, and accordingly increases the concrete mixing temperature.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solve prior art not enough, provide a high and cold high altitude concrete aggregate system of preheating, it can increase concrete mixing temperature, realizes preheating and heating simultaneously, satisfies the requirement of mixing of high and cold high altitude area concrete winter.
In order to achieve the above purpose, the utility model provides a following technical scheme:
an aggregate preheating system for high-cold high-altitude concrete comprises an aggregate piling shed and a mixing room, wherein an aggregate bin and a fuel steam boiler are arranged in the aggregate piling shed, and a warm steam calandria and a hot water system pipe are arranged in the aggregate bin; the warm steam calandria and the hot water system pipe are both connected with a fuel steam boiler through pipelines; a mixer and a heating pipeline are arranged in the mixing room, and the heating pipeline is connected with a fuel steam boiler through a pipeline; the aggregate bin is connected with the mixer through an aggregate feeding conveying belt, and a heat-insulating truss is arranged on the outer side of the aggregate feeding conveying belt.
Further, the aggregate stockpiling shed comprises a shed frame, heat-insulating enclosing plates arranged on the periphery of the shed frame and a transparent ceiling arranged at the top of the shed frame, wherein the heat-insulating enclosing plates and the transparent ceiling jointly form a closed shed inner space; the transparent ceiling is made of transparent plates, and the transparent ceiling can enable sunlight to irradiate in the aggregate storage shed.
Furthermore, the canopy frame is of a light steel structure, the heat-insulation coaming is made of a color steel composite board, and the transparent ceiling is formed by splicing wired glass.
Furthermore, the warm steam calandria consists of a plurality of warm steam pipe monomers which are parallel to each other, and each warm steam pipe monomer comprises an upper main pipe, a lower main pipe and a radiating branch pipe; the upper main pipe is fixed with the top surface of the aggregate bin, an air inlet and an air outlet are respectively arranged at two ends of the upper main pipe, the air inlet is connected with the air outlet end of the fuel steam boiler, and the air outlet is connected with the air inlet end of the fuel steam boiler; one end of the heat dissipation branch pipe is communicated with the upper main pipe, and the other end of the heat dissipation branch pipe is communicated with the lower main pipe.
Furthermore, the warm steam calandria and the hot water system pipe are both fixed on the top surface of the aggregate bin; the side of the aggregate bin is also provided with a first warm air blower, and the blowing direction of the first warm air blower faces the warm steam exhaust pipe.
Further, still be provided with the temperature sensor who is used for detecting the interior temperature of aggregate storehouse in the aggregate storehouse, the outside of aggregate storehouse is provided with the controller, the controller respectively with temperature sensor and fuel steam boiler electric connection.
Furthermore, a second warm air blower is arranged at the top of the heat preservation truss.
Further, the outer side of the mixer is coated with a heat-insulating layer.
Further, the heat-insulating layer is made of any one of rubber-plastic sponge, polyurethane foam, a polyphenyl board and phenolic foam.
Has the advantages that: the utility model adopts the heat preservation surrounding plates to totally enclose the periphery of the aggregate stockpiling shed, adopts the transparent material to meet the requirements of light and direct sunlight in the aggregate shed, and improves the temperature in the aggregate stockpiling shed so as to prevent the aggregates from freezing; a temperature sensor is arranged in the aggregate bin, so that automatic alternate operation and starting can be realized according to the adjustment and setting of the aggregate temperature, and the operation cost is saved; the first warm air blower enables air in the aggregate bin to flow circularly, and meanwhile, the heat exchange of the warm steam exhaust pipe can be accelerated, and the diffusion speed of hot air in the aggregate bin is accelerated; the heat preservation truss is insulated by adopting a totally-enclosed heat preservation material, and a second fan heater is used for supplying air to the interior of the heat preservation truss, so that the temperature in the heat preservation truss is constant, and the heat loss in the aggregate conveying process is reduced; a heating pipeline is arranged in the mixing chamber to increase the ambient temperature, and the heat in the mixer is prevented from being dissipated through the arranged heat insulation layer. The utility model discloses not only to the water heating, still heat the aggregate to heating simultaneously mixing process equipotential, thereby increasing concrete mixing temperature, realizing preheating and heating simultaneously, satisfying the requirement of mixing of severe cold high altitude area concrete in winter.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of a medium-heating steam tube unit according to the present invention;
fig. 3 is a layout diagram of the medium-heating steam grid and the hot water system pipe in a plane of the top view.
The reference numerals are explained below:
in the figure: 1. an aggregate stockpiling shed; 2. an aggregate bin; 3. a mixing chamber; 4. an aggregate feeding conveyor belt; 5. a shed frame; 6. insulating enclosing plates; 7. a transparent ceiling; 8. a fuel oil steam boiler; 9. warm steam pipes; 91. heating a steam pipe monomer; 9011. an upper main pipe; 9012. a heat radiation branch pipe; 9013. a lower main pipe; 9014. an air inlet; 9015. an air outlet; 10. a hot water system pipe; 11. a first warm air blower; 12. a temperature sensor; 13. a second warm air blower; 14. a heat preservation truss; 15. a mixer; 16. a heating pipeline; 17. a heat-insulating layer; 18. and a controller.
Detailed Description
Before concrete implementation, the problems of the relationship of aggregate temperature along with outdoor air temperature change, aggregate heating effect, preheating strength, energy consumption and the like are researched, and by combining an aggregate preheating calculation formula, the heat loss condition and reason of the aggregate in the technological processes of heating, using and the like are found out through test detection, data statistics, analysis and the like in the actual production and operation process of engineering, so that the aggregate heating efficiency is improved.
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 to 3, the utility model provides an alpine high-altitude concrete aggregate preheating system, which comprises an aggregate storage shed 1 and a mixing room 3, wherein an aggregate bin 2 and two fuel steam boilers 8 are arranged in the aggregate storage shed 1, and a warm steam calandria 9 and a hot water system pipe 10 are arranged in the aggregate bin 2; the warm steam exhaust pipe 9 and the hot water system pipe 10 are both connected with a fuel steam boiler 8 through pipelines; a mixer 15 and a heating pipeline 16 are arranged in the mixing room 3, and the heating pipeline 16 is connected with a fuel steam boiler 8 through a pipeline; the aggregate bin 2 is connected with the mixer 15 through an aggregate feeding conveying belt 4, and a heat-insulating truss 14 is arranged on the outer side of the aggregate feeding conveying belt 4.
The utility model discloses in, aggregate stockpiling canopy 1 includes rack 5, sets up at rack 5 heat preservation bounding wall 6 all around and sets up at the transparent ceiling 7 at rack 5 top, heat preservation bounding wall 6 constitutes confined canopy inner space with transparent ceiling 7 jointly. The transparent ceiling 7 is made of transparent plates, and the transparent ceiling 7 can enable sunlight to irradiate the aggregate storage shed 1, so that the requirement of light in the aggregate storage shed 1 can be met, the sunlight can be directly emitted to the aggregates, the temperature of the aggregates is increased, and the aggregates are prevented from being frozen. The closed aggregate stockpiling shed 1 can prevent the heat in the shed from dissipating, and is favorable for ensuring that the inside of the shed has proper temperature. In specific implementation, the canopy frame 5 can be a light steel structure, the heat-insulating coaming 6 can be a color steel composite plate, and the transparent ceiling 7 is formed by splicing wired glass.
In the utility model, the warm steam calandria is composed of a plurality of mutually parallel warm steam pipe monomers 901, and the warm steam pipe monomers 901 include an upper main pipe 9011, a lower main pipe 9013 and a heat radiation branch pipe 9012; the upper main pipe 1 is fixed with the top surface of the aggregate bin 2, the two ends of the upper main pipe 9011 are respectively provided with an air inlet 9014 and an air outlet 9015, the air inlet 9014 is connected with the air outlet end of the fuel steam boiler 5, and the air outlet 9015 is connected with the air inlet end of the fuel steam boiler 5; one end of the heat radiation branch pipe 9012 is communicated with the upper main pipe 9011, and the other end of the heat radiation branch pipe 9012 is communicated with the lower main pipe 9013. The hot water system pipe 10 is arranged at one side of the warm steam exhaust pipe 9, the upper end of the hot water system pipe is fixed with the top of the aggregate bin 2, the structure and the principle of the hot water system pipe 10 are the same as those of the heating radiator, and the detailed description is omitted here.
In the utility model discloses, warm steam calandria 9 and hot water system pipe 10 are all fixed with the top surface of aggregate storehouse 2. The side of the aggregate bin 2 is also provided with a first warm air blower 11, and the blowing direction of the first warm air blower 11 faces the warm steam exhaust pipe 9. The first warm air blower 11 enables air in the aggregate bin 2 to flow circularly, and meanwhile, the heat exchange of the warm steam exhaust pipe 9 can be accelerated, and the diffusion speed of hot air in the aggregate bin 2 is accelerated. The top of the heat preservation truss 14 is provided with a second fan heater 13, the periphery of the heat preservation truss 14 is insulated by a totally-enclosed heat preservation material, the heat preservation truss 14 supplies air to the interior of the heat preservation truss by the second fan heater 13, the constant temperature inside the heat preservation truss 14 is ensured, and the heat loss in the aggregate conveying process is reduced. A heating pipeline 16 is arranged in the mixing room 3 to improve the ambient temperature in the mixing room, a heat insulation layer 17 is coated on the outer side of the mixer 15, the heat insulation layer 17 is made of any one of rubber-plastic sponge, polyurethane foam, polystyrene board and phenolic foam, and heat loss in the mixer 15 is prevented through the arranged heat insulation layer 17. Furthermore, the utility model discloses in adopt two 3t oil steam boiler 8 to supply heat, one of them oil steam boiler is used for supplying heat to warm steam calandria 9, and another oil steam boiler supplies heat to hot water system pipe 10 and heating pipeline 16 simultaneously, the utility model discloses changed traditional coal boiler, it is less to the pollution that the environment caused, the heating effect also can promote.
The utility model discloses in, still be provided with the temperature sensor 12 that is used for detecting the interior temperature of aggregate storehouse in aggregate storehouse 2, the outside of aggregate storehouse 2 is provided with controller 18, controller 18 respectively with temperature sensor 12 and 8 electric connection of fuel steam boiler. The temperature sensor 12 transmits the measured temperature signal in the aggregate bin 2 to the controller 4, and a threshold value for controlling the start and stop of the fuel steam boiler 8 is preset in the controller 4. When the temperature in the aggregate bin 2 is higher than the threshold value, the controller 4 controls the fuel steam boiler 8 to stop supplying heat, and when the temperature in the aggregate bin 2 is lower than the threshold value, the controller 4 controls the fuel steam boiler 8 to start supplying heat, so that the operation cost is saved. Wherein, the utility model provides a temperature sensor model can be MLX90614ESF, the model of controller can be LTC 1420.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The high-cold high-altitude concrete aggregate preheating system is characterized by comprising an aggregate piling shed and a mixing room, wherein an aggregate bin and a fuel steam boiler are arranged in the aggregate piling shed, and a warm steam calandria and a hot water system pipe are arranged in the aggregate bin; the warm steam calandria and the hot water system pipe are both connected with a fuel steam boiler through pipelines; a mixer and a heating pipeline are arranged in the mixing room, and the heating pipeline is connected with a fuel steam boiler through a pipeline; the aggregate bin is connected with the mixer through an aggregate feeding conveying belt, and a heat-insulating truss is arranged on the outer side of the aggregate feeding conveying belt.
2. The alpine-high altitude concrete aggregate preheating system of claim 1, characterized in that: the aggregate stockpiling shed comprises a shed frame, heat-insulating coamings arranged around the shed frame and a transparent ceiling arranged at the top of the shed frame, wherein the heat-insulating coamings and the transparent ceiling jointly form a closed shed space; the transparent ceiling is made of transparent plates, and the transparent ceiling can enable sunlight to irradiate in the aggregate storage shed.
3. The alpine-altitude concrete aggregate preheating system according to claim 2, characterized in that: the canopy frame is of a light steel structure, the heat-insulation coaming is made of a color steel composite board, and the transparent ceiling is formed by splicing wired glass.
4. The alpine-high altitude concrete aggregate preheating system of claim 1, characterized in that: the warm steam calandria is composed of a plurality of warm steam pipe monomers which are parallel to each other, and each warm steam pipe monomer comprises an upper main pipe, a lower main pipe and a radiating branch pipe; the upper main pipe is fixed with the top surface of the aggregate bin, an air inlet and an air outlet are respectively arranged at two ends of the upper main pipe, the air inlet is connected with the air outlet end of the fuel steam boiler, and the air outlet is connected with the air inlet end of the fuel steam boiler; one end of the heat dissipation branch pipe is communicated with the upper main pipe, and the other end of the heat dissipation branch pipe is communicated with the lower main pipe.
5. The alpine-high altitude concrete aggregate preheating system of claim 1, characterized in that: the side of the aggregate bin is also provided with a first warm air blower, and the blowing direction of the first warm air blower faces the warm steam exhaust pipe.
6. The alpine-high altitude concrete aggregate preheating system of claim 1, characterized in that: still be provided with the temperature sensor who is used for detecting the interior temperature of aggregate storehouse in the aggregate storehouse, the outside of aggregate storehouse is provided with the controller, the controller respectively with temperature sensor and fuel steam boiler electric connection.
7. The alpine-high altitude concrete aggregate preheating system of claim 1, characterized in that: and a second warm air blower is arranged at the top of the heat-insulating truss.
8. The alpine-high-altitude concrete aggregate preheating system according to any one of claims 1 to 7, wherein: and the outer side of the mixer is coated with a heat-insulating layer.
9. The alpine-high altitude concrete aggregate preheating system of claim 8, characterized in that: the heat-insulating layer is made of any one of rubber-plastic sponge, polyurethane foam, polystyrene board and phenolic foam.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022089287.3U CN214353343U (en) | 2020-09-22 | 2020-09-22 | High and cold high-altitude concrete aggregate preheating system |
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| CN202022089287.3U CN214353343U (en) | 2020-09-22 | 2020-09-22 | High and cold high-altitude concrete aggregate preheating system |
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| CN214353343U true CN214353343U (en) | 2021-10-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114474338A (en) * | 2022-01-05 | 2022-05-13 | 中铁八局集团第七工程有限公司 | Prefabrication production method for railway T beam in high-cold high-altitude area |
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2020
- 2020-09-22 CN CN202022089287.3U patent/CN214353343U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114474338A (en) * | 2022-01-05 | 2022-05-13 | 中铁八局集团第七工程有限公司 | Prefabrication production method for railway T beam in high-cold high-altitude area |
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