Aggregate heat preservation system for intelligent temperature control nuclear power concrete mixing plant

Abstract

The utility model belongs to the technical field of concrete mixing plants, and particularly relates to an aggregate heat preservation system for an intelligent temperature control nuclear power concrete mixing plant. Comprising a heat preservation shed, the interior of the heat preservation shed is divided into a feeding chamber and a storage chamber through a partition plate, the feeding chamber and the storage chamber are provided with a first door and a second door respectively, heat preservation curtains are hung on the first door and the second door respectively, heat preservation coil pipes are installed on the inner wall of the feeding chamber and the inner wall of the storage chamber respectively, a dumper unloading machine is installed in the feeding chamber, and a feeding pit is excavated in the feeding chamber; a pipe chain conveyor is installed in the feeding pit, a feeding hopper is arranged on the pipe chain conveyor, the pipe chain conveyor bends and extends to the material storage chamber to be connected end to end, the part, located in the material storage chamber, of the pipe chain conveyor is communicated with a plurality of discharging hoppers, gate valves are installed on the discharging hoppers, and a belt conveyor and a plurality of material partition plates are installed in the material storage chamber. Heat loss of the heat preservation shed can be reduced, meanwhile, the temperature of aggregate is prevented from being reduced when the aggregate is conveyed on the belt conveyor, the heat preservation effect is good, and heat preservation energy consumption is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete mixing stations, and in particular relates to an aggregate insulation system for an intelligent temperature-controlled nuclear power concrete mixing station. Background Art

[0002] Compared with general industrial and civil construction projects, nuclear power projects have a longer construction period and greater construction difficulty. In view of the particularity of nuclear safety requirements, concrete, as one of the main materials for nuclear power project construction, faces more challenges. The performance of concrete plays an important role in the safe and reliable operation of nuclear power plants throughout their life cycle. Nuclear power concrete is required to have good working performance and quality. Nuclear power concrete has corresponding technical documents, construction regulations and other controls in all aspects, including raw material selection, on-site inspection, mix design, concrete production, on-site pouring and maintenance. Nuclear power projects have a large amount of concrete. During winter construction, the aggregate temperature has a greater impact on the quality of concrete. At present, the common practice is to build an insulation shed at the aggregate stacking place, and the flat belt for feeding is also fully enclosed. A door is opened on the insulation shed, and an insulation curtain is hung on the door. However, in actual use, transport vehicles frequently enter and exit, and the insulation curtain needs to be opened frequently, resulting in a large heat loss in the insulation shed, reducing the insulation effect and consuming more energy. Summary of the invention

[0003] The utility model aims to provide an aggregate insulation system for a nuclear power concrete mixing station with intelligent temperature control to solve the problems existing in the prior art.

[0004] The utility model adopts the following technical scheme to solve the technical problems: an aggregate insulation system for an intelligent temperature-controlled nuclear power concrete mixing station, comprising an insulation shed, wherein the insulation shed is divided into a feeding room and a storage room by a partition, wherein the feeding room and the storage room are respectively provided with a first door and a second door, and insulation curtains are hung on the first door and the second door, and insulation coils are installed on the inner walls of the feeding room and the storage room, and a tipping unloader is installed in the feeding room, a feeding pit is excavated in the feeding room, and a pipe chain conveyor is installed in the feeding pit, and a feeding hopper is provided on the pipe chain conveyor, which is bent and extended to the storage room and then connected end to end, and the part of the pipe chain conveyor located in the storage room is connected with a plurality of lower hoppers, and the lower hoppers are all provided with gate valves, and a belt conveyor and a plurality of partition plates are installed in the storage room.

[0005] Furthermore, the feed pit is located at the rear end of the car tipping unloader and below the ground, and the head end of the car tipping unloader faces the first door.

[0006] Further, the feed hopper is located on a tube chain conveyor at the feed pit.

[0007] Furthermore, a loader passage is provided in the material storage chamber, and the loader passage faces the second door.

[0008] Furthermore, the partition plate is located below the tube chain conveyor and on both sides of the loader channel to divide the storage chamber into several areas for classified storage of different types of aggregates, and the position of the lower hopper corresponds to the area divided by the partition plate.

[0009] Furthermore, the belt conveyor is a fully enclosed belt conveyor, and a plurality of air inlet pipes penetrating the outer wall of the belt conveyor are arranged on the outer wall of the belt conveyor.

[0010] Furthermore, a metering bucket is installed at the feeding end of the belt conveyor.

[0011] The utility model has the following beneficial effects:

[0012] 1. The utility model can reduce the heat loss of the insulation shed and prevent the temperature of the aggregate from dropping when it is transported on the belt conveyor. It has good insulation effect and low insulation energy consumption.

[0013] 2. The insulation shed is divided into a feeding room and a storage room by partitions. Vehicles only drive to the feeding room but not into the storage room. The feeding room provides a buffer for feeding, thereby greatly reducing the heat exchange between the insulation shed and the external environment.

[0014] 3. The feed room and the storage room are connected only by a tube chain conveyor, and the tube chain conveyor is a closed conveying equipment. Therefore, the air circulation between the feed room and the storage room is greatly reduced, thereby further reducing the heat loss in the insulation shed, thereby reducing the insulation energy consumption.

[0015] 4. The loader moves back and forth in the loader channel to load aggregates. The loader always moves in the storage room and does not need to enter or exit the insulation shed, so there will be no heat loss.

[0016] 5. Use insulation coils to heat and insulate the insulation shed to prevent low aggregate temperature from affecting concrete quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the vertical section structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model in top view.

[0019] Figure 3 It is a structural schematic diagram of embodiment 2 of the present utility model.

[0020] Among them: 1. Insulation shed; 2. Partition; 3. Feed room; 4. Storage room; 5. First door; 6. Second door; 7. Insulation curtain; 8. Insulation coil; 9. Tipping unloader; 10. Feed pit; 11. Pipe chain conveyor; 12. Feed hopper; 13. Lower hopper; 14. Gate valve; 15. Belt conveyor; 16. Partition plate; 17. Inlet pipe; 18. Measuring hopper. DETAILED DESCRIPTION

[0021] The utility model will now be further described in detail with reference to the accompanying drawings.

[0022] Embodiment 1:

[0023] like Figure 1-2 As shown, an intelligent temperature-controlled aggregate insulation system for nuclear power concrete mixing station includes an insulation shed 1, which is divided into a feeding chamber 3 and a storage chamber 4 by a partition 2. The feeding chamber 3 and the storage chamber 4 are respectively provided with a first door 5 and a second door 6, and the first door 5 and the second door 6 are both hung with insulation curtains 7. Insulation coils 8 are installed on the inner walls of the feeding chamber 3 and the storage chamber 4. A tipping unloader 9 is installed in the feeding chamber 3, a feeding pit 10 is excavated in the feeding chamber 3, and a pipe chain conveyor 11 is installed in the feeding pit 10. A feeding hopper 12 is provided on the pipe chain conveyor 11. The pipe chain conveyor 11 is bent and extended to the storage chamber 4 and then connected end to end. The part of the pipe chain conveyor 11 located in the storage chamber 4 is connected to a plurality of lower hoppers 13, and the lower hoppers 13 are each installed with a gate valve 14. A belt conveyor 15 and a plurality of partition plates 16 are installed in the storage chamber 4.

[0024] The feed pit 10 is located at the rear end of the dumper unloader 9 and below the ground, and the head end of the dumper unloader 9 faces the first door 5 .

[0025] The feed hopper 12 is located on the tube chain conveyor 11 at the feed pit 10. After the tipping unloader 9 lifts one end of the transport vehicle, the aggregate can fall into the feed hopper 12 for unloading of the aggregate.

[0026] A loader passage is provided in the storage chamber 4, and the loader passage faces the second door 6. The loader can move back and forth in the loader passage to load aggregate, and the loader is always active in the storage chamber 4, and does not need to enter or exit the insulation shed 1, so that no heat loss is caused.

[0027] The material partition plate 16 is located below the tube chain conveyor 11 and on both sides of the loader channel, and is used to divide the storage chamber 4 into several areas for classified storage of different types of aggregates. The position of the lower hopper 13 corresponds to the area divided by the material partition plate 16. According to different aggregate gradations, the aggregates can be divided into several aggregate piles for classified storage.

[0028] The belt conveyor 15 is a fully enclosed belt conveyor, and a plurality of air inlet pipes 17 are provided on the outer wall of the belt conveyor 15 and penetrate the outer wall of the belt conveyor 15. When used in winter, a heated compressed air pipe is connected to the air inlet pipe 17 on the belt conveyor 15 to blow hot air to the aggregate in the belt conveyor 15, thereby increasing the temperature of the aggregate when being transported on the belt conveyor 15.

[0029] This embodiment is applicable to a concrete mixing plant equipped with both a ground silo and a vertical aggregate silo. Some projects require the storage of a large amount of aggregates. The stock of the vertical aggregate silo is limited, so the only option is to add a ground silo. The utility model is used as a ground silo for temporary storage of aggregates. When the vertical aggregate silo needs to be replenished, the aggregates are transported to the vertical aggregate silo through a belt conveyor 15.

[0030] Embodiment 2:

[0031] like Figure 3 As shown, an intelligent temperature-controlled aggregate insulation system for nuclear power concrete mixing station includes an insulation shed 1, which is divided into a feeding chamber 3 and a storage chamber 4 by a partition 2. The feeding chamber 3 and the storage chamber 4 are respectively provided with a first door 5 and a second door 6, and the first door 5 and the second door 6 are both hung with insulation curtains 7. Insulation coils 8 are installed on the inner walls of the feeding chamber 3 and the storage chamber 4. A tipping unloader 9 is installed in the feeding chamber 3, a feeding pit 10 is excavated in the feeding chamber 3, and a pipe chain conveyor 11 is installed in the feeding pit 10. A feeding hopper 12 is provided on the pipe chain conveyor 11. The pipe chain conveyor 11 is bent and extended to the storage chamber 4 and then connected end to end. The part of the pipe chain conveyor 11 located in the storage chamber 4 is connected to a plurality of lower hoppers 13, and the lower hoppers 13 are each installed with a gate valve 14. A belt conveyor 15 and a plurality of partition plates 16 are installed in the storage chamber 4.

[0032] The feed pit 10 is located at the rear end of the dumper unloader 9 and below the ground, and the head end of the dumper unloader 9 faces the first door 5 .

[0033] The feed hopper 12 is located on the tube chain conveyor 11 at the feed pit 10. After the tipping unloader 9 lifts one end of the transport vehicle, the aggregate can fall into the feed hopper 12 for unloading of the aggregate.

[0034] A loader passage is provided in the storage chamber 4, and the loader passage faces the second door 6. The loader can move back and forth in the loader passage to load aggregate, and the loader is always active in the storage chamber 4, and does not need to enter or exit the insulation shed 1, so that no heat loss is caused.

[0035] The material partition plate 16 is located below the tube chain conveyor 11 and on both sides of the loader channel, and is used to divide the storage chamber 4 into several areas for classified storage of different types of aggregates. The position of the lower hopper 13 corresponds to the area divided by the material partition plate 16. According to different aggregate gradations, the aggregates can be divided into several aggregate piles for classified storage.

[0036] The belt conveyor 15 is a fully enclosed belt conveyor, and a plurality of air inlet pipes 17 are provided on the outer wall of the belt conveyor 15 and penetrate the outer wall of the belt conveyor 15. When used in winter, a heated compressed air pipe is connected to the air inlet pipe 17 on the belt conveyor 15 to blow hot air to the aggregate in the belt conveyor 15, thereby increasing the temperature of the aggregate when being transported on the belt conveyor 15.

[0037] A metering bucket 18 is installed at the feeding end of the belt conveyor 15 .

[0038] Compared with Example 1, this embodiment is equipped with a metering bucket 18 at the feeding end of the belt conveyor 15, which is suitable for concrete mixing plants equipped with only ground warehouses. Some small projects do not need to store too much aggregate, and the aggregate can be directly fed through the belt conveyor 15 after being measured by the metering bucket 18 of the utility model.

[0039] The working principle of the utility model is:

[0040] When used in winter, the heating pipe of the concrete mixing station is connected to the insulation coil 8 to heat the insulation shed 1, and the heated compressed air pipe is connected to the air inlet pipe 17 on the belt conveyor 15 to blow hot air to the aggregate in the belt conveyor 15, thereby increasing the temperature of the aggregate when it is transported on the belt conveyor 15. The heating of air or water belongs to the common sense of the prior art. In winter, there are many ways to heat the water or air of the concrete mixing station, such as equipping a boiler to heat the water through the boiler, installing a compressed air machine in the boiler room and setting a compressed air coil to heat the compressed air, which will not be repeated here.

[0041] The transport vehicle enters from the first door 5 and unloads through the tipping unloader 9. The aggregate enters the pipe chain conveyor 11 from the feed hopper 12. According to the type of aggregate, the corresponding gate valve 14 is controlled to open, and the aggregate is transported to the corresponding stacking area separated by the partition plate 16 via the pipe chain conveyor 11. Since the insulation shed 1 is divided into the feed chamber 3 and the storage chamber 4 by the partition 2, the vehicle only travels to the feed chamber 3 but does not enter the storage chamber 4. The feed chamber 3 provides a buffer for the feed, thereby greatly reducing the heat exchange between the insulation shed 1 and the external environment. The feed chamber 3 and the storage chamber 4 are connected only through the pipe chain conveyor 11, and the pipe chain conveyor 11 is a closed conveying equipment. Therefore, the air circulation between the feed chamber 3 and the storage chamber 4 is greatly reduced, thereby further reducing the heat loss in the insulation shed 1, thereby reducing the insulation energy consumption.

[0042] The above-described embodiments are merely descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary persons in the art to the technical solution of the present invention shall fall within the scope of protection of the present invention.

[0043] The technology, shape and structure parts not described in detail in the present invention are all known technologies.

Claims

1. An intelligent temperature-controlled aggregate insulation system for nuclear power concrete mixing station, characterized in that: The utility model comprises a heat preservation shed, which is divided into a feeding room and a storage room by partitions. The feeding room and the storage room are respectively provided with a first door and a second door, and the first door and the second door are both hung with heat preservation curtains. Heat preservation coils are installed on the inner walls of the feeding room and the storage room. A tipping unloader is installed in the feeding room. A feeding pit is excavated in the feeding room. A pipe chain conveyor is installed in the feeding pit. A feeding hopper is provided on the pipe chain conveyor. The pipe chain conveyor is bent and extended to the storage room and then connected end to end. The part of the pipe chain conveyor located in the storage room is connected with a plurality of lower hoppers, and the lower hoppers are all provided with gate valves. A belt conveyor and a plurality of partition plates are installed in the storage room.

2. The intelligent temperature-controlled aggregate insulation system for nuclear power concrete mixing station according to claim 1 is characterized in that: The feed pit is located at the rear end of the car tipping unloader and below the ground, and the head end of the car tipping unloader faces the first door.

3. The intelligent temperature-controlled aggregate insulation system for nuclear power concrete mixing station according to claim 2 is characterized in that: The feed hopper is located on the tube chain conveyor at the feed pit.

4. The intelligent temperature-controlled aggregate insulation system for nuclear power concrete mixing station according to claim 1 is characterized in that: A loader passage is arranged in the material storage chamber, and the loader passage faces the second door.

5. The intelligent temperature-controlled aggregate insulation system for nuclear power concrete mixing station according to claim 4 is characterized in that: The partition plate is located below the tube chain conveyor and on both sides of the loader channel, and is used to divide the storage chamber into several areas for classified storage of different types of aggregates. The position of the lower hopper corresponds to the area divided by the partition plate.

6. The intelligent temperature-controlled aggregate insulation system for nuclear power concrete mixing station according to claim 1 is characterized in that: The belt conveyor is a fully enclosed belt conveyor, and a plurality of air inlet pipes penetrating the outer wall of the belt conveyor are arranged on the outer wall of the belt conveyor.

7. The intelligent temperature-controlled aggregate insulation system for nuclear power concrete mixing station according to claim 6 is characterized in that: A metering bucket is installed at the feeding end of the belt conveyor.

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