Preheating device for emulsion explosive production pipeline

Abstract

The utility model relates to the technical field of emulsion explosive production, and discloses a preheating device for an emulsion explosive production pipeline, which comprises a material guide pipe and is characterized in that a combined gas guide pipe is fixedly sleeved on the surface of the material guide pipe and is formed by splicing a plurality of assembly arc pipes; a plurality of sets of telescopic cylinders are fixed to the surface of the assembly arc pipe at equal intervals, the output end of each telescopic cylinder extends into the inner side wall of the assembly arc pipe, a thermal insulation arc pipe is fixed to the movable ends of the telescopic cylinders in all the sets, and a plurality of temperature sensors are fixed to the surface of the assembly arc pipe at equal intervals. A temperature sensor is fixed on the inner side wall of the assembly arc tube, the detection end of the temperature sensor extends into the inner side wall of the assembly arc tube, a first thermal insulation layer is fixed on the inner side wall of the assembly arc tube, a second thermal insulation layer is fixed on the outer side wall of the thermal insulation arc tube, and a third thermal insulation layer is fixed on the inner side wall of the thermal insulation arc tube. The preheating efficiency of warm air to the pipeline is improved, and the preheating time is shortened.

Description

Technical Field

[0001] This utility model relates to the field of emulsion explosive production technology, and in particular to a preheating device for emulsion explosive production pipelines. Background Technology

[0002] When using warm air to preheat the pipeline, the side of the pipeline closest to the warm air inlet will heat up first due to the pipeline length. Since the pipeline will naturally dissipate heat to the surrounding environment, the end pipeline will never reach the target preheating temperature, or it will take a long time to reach the target preheating temperature. The problem of uneven warm air preheating needs to be solved. For this reason, a preheating device for emulsion explosive production pipelines was designed. Utility Model Content

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, one objective of this invention is to provide a preheating device for emulsion explosive production pipelines, increasing the preheating efficiency of the pipelines by warm air and reducing the preheating time.

[0004] The preheating device for emulsion explosive production pipeline proposed in this utility model includes a feed pipe, a combined gas guide pipe fixedly fitted on the surface of the feed pipe, the combined gas guide pipe being composed of multiple assembled arc pipes spliced ​​together, multiple sets of telescopic cylinders being fixedly fixed at equal intervals on the surface of the assembled arc pipes, the output end of each telescopic cylinder extending into the inner wall of the assembled arc pipe, the moving end of each set of telescopic cylinders being fixedly fixed with a heat-insulating arc pipe, and multiple temperature sensors being fixedly fixedly at equal intervals on the surface of the assembled arc pipes, the detection end of each temperature sensor extending into the inner wall of the assembled arc pipes.

[0005] The inner wall of the assembled arc tube is fixed with a first heat insulation layer, the outer wall of the heat-insulating arc tube is fixed with a second heat insulation layer, and the inner wall of the heat-insulating arc tube is fixed with a third heat insulation layer.

[0006] Preferably, the sidewall of the assembly arc tube is fixed with multiple connecting lugs at equal intervals, and the assembly arc tubes are fixed together by mounting bolts.

[0007] Preferably, the surface of the assembly arc tube is provided with a plurality of through holes at equal intervals for moving the output end of the telescopic cylinder, and the surface of the assembly arc tube is provided with a plurality of mounting holes at equal intervals for assembling the temperature sensor.

[0008] Preferably, the curvature of the inner wall of the heat-insulating arc tube is adapted to the curvature of the surface of the material guide tube.

[0009] Preferably, both ends of the combined air guide tube are fixed with end plates, and the two end surfaces of the combined air guide tube are respectively fixed with an air inlet and an air outlet.

[0010] Preferably, the assembled arc tubes can be connected end to end and spliced ​​together to form a cylindrical tube fitting.

[0011] The beneficial effects of this utility model are: by setting up an insulated arc pipe to isolate the preheated pipe, and using the first and second insulation layers to form an air duct in the isolation space, the heat loss of the warm air is further reduced, the heating efficiency of the subsequent pipe is improved, and the preheating efficiency of the entire pipe is accelerated. For pipes with insufficient local temperature, local heating can be achieved. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the preheating device for emulsion explosive production pipeline proposed in this utility model.

[0013] Figure 2 This is a partial exploded view of the preheating device for the emulsion explosive production pipeline proposed in this utility model.

[0014] Figure 3 This is a left view of the preheating device for the emulsion explosive production pipeline proposed in this utility model.

[0015] Figure 4 This is a schematic diagram of the assembly arc pipe structure of the preheating device for emulsion explosive production pipeline proposed in this utility model.

[0016] In the diagram: 1. Feed pipe; 2. Combined air pipe; 3. Assembly arc pipe; 31. Connecting ear; 32. Through hole; 33. Mounting hole; 4. Telescopic cylinder; 5. Insulated arc pipe; 6. Temperature sensor; 7. First insulation layer; 8. Second insulation layer; 9. Third insulation layer; 10. Air inlet; 11. Air outlet; 12. End plate. Detailed Implementation

[0017] Reference Figure 1-4 The preheating device for the emulsion explosive production pipeline includes a feed pipe 1, which is a conduit for raw materials in the production of emulsion explosives. A combined gas pipe 2 is fixedly fitted on the surface of the feed pipe 1. The combined gas pipe 2 is composed of multiple assembled arc pipes 3 spliced ​​together. Multiple sets of telescopic cylinders 4 are fixed at equal intervals on the surface of the assembled arc pipes 3. BNZ rod-type double-acting high-temperature hydraulic cylinders are used. The output end of each telescopic cylinder 4 extends into the inner wall of the assembled arc pipe 3. The moving end of each set of telescopic cylinders 4 is fixed together with a heat-insulating arc pipe 5. Multiple temperature sensors 6 are fixed at equal intervals on the surface of the assembled arc pipe 3. PT100 temperature sensors 6 are used. The detection end of the temperature sensor 6 extends into the inner wall of the assembled arc pipe 3. The device also includes a terminal controller. The temperature sensors 6 and the telescopic cylinders 4 are all electrically connected to the terminal controller. The terminal controller is used to control the electrical equipment.

[0018] The inner wall of the assembled arc pipe 3 is fixed with a first heat insulation layer 7, the outer wall of the heat insulation arc pipe 5 is fixed with a second heat insulation layer 8, and the inner wall of the heat insulation arc pipe 5 is fixed with a third heat insulation layer 9. The first heat insulation layer 7 and the second heat insulation layer 8 form an air duct to reduce the loss of warm air heat.

[0019] Multiple connecting lugs 31 are fixed at equal intervals on the side wall of the assembly arc tube 3, and the assembly arc tubes 3 are fixed together by mounting bolts.

[0020] The surface of the assembly arc tube 3 is provided with multiple through holes 32 at equal intervals for moving the output end of the telescopic cylinder 4, and the surface of the assembly arc tube 3 is provided with multiple mounting holes 33 at equal intervals for mounting the temperature sensor 6.

[0021] The curvature of the inner wall of the heat-insulating arc tube 5 is matched with the curvature of the surface of the feed tube 1.

[0022] Both ends of the combined air guide tube 2 are fixed with end plates 12, and the two ends of the combined air guide tube 2 are respectively fixed with an air inlet 10 and an air outlet 11.

[0023] The assembled arc tubes 3 can be connected end to end, or spliced ​​to form cylindrical pipe fittings, which facilitates production and assembly.

[0024] When using this device, connect the air inlet 10 and air outlet 11 of the preheating device to the circulation pipe of the heater. Start the heater, and warm air flows from the air inlet end of the combined air guide pipe 2 to the air outlet end. After a period of warm air preheating, the temperature sensor 6 is used for detection. The temperature of the guide pipe 1 near the air inlet end of the combined air guide pipe 2 reaches the target temperature first. At this time, the telescopic cylinder 4 works, and the moving end of the telescopic cylinder 4 extends, driving the heat-insulating arc pipe 5 to approach the guide pipe 1. The two heat-insulating arc pipes 5 form a cylindrical tube that covers the surface of the guide pipe 1. At this time, the warm air cannot directly contact the guide pipe 1. In the first heat insulation layer 7 and The space between the second insulation layers 8 allows for air circulation, reducing heat loss from the warm air and providing heat to the next section of the guide pipe 1. This process continues until the last section of the guide pipe 1 reaches the preheating temperature. After all the guide pipes 1 are preheated, the moving end of the telescopic cylinder 4 retracts, causing the insulation pipes to separate. At this time, the temperature sensor 6 can directly detect the temperature of the surface of the guide pipe 1. The insulation arc pipes 5 in this range of the guide pipe 1, whose temperature is maintained at the target preheating temperature, move closer together and close under the action of the telescopic cylinder 4. The guide pipe 1 with a temperature lower than the target preheating temperature continues to be heated by the warm air. After reaching the target temperature, the insulation arc pipe 5 closes to insulate.

Claims

1. A preheating device for emulsion explosive production pipeline, including a feed pipe, characterized in that: A combined air guide tube is fixedly fitted onto the surface of the feed tube. The combined air guide tube is composed of multiple assembled arc tubes spliced ​​together. Multiple sets of telescopic cylinders are fixedly fixed at equal intervals on the surface of the assembled arc tube. The output end of each telescopic cylinder extends into the inner wall of the assembled arc tube. The moving end of each set of telescopic cylinders is fixedly fixed with a heat-insulating arc tube. Multiple temperature sensors are fixedly fixedly at equal intervals on the surface of the assembled arc tube. The detection end of the temperature sensor extends into the inner wall of the assembled arc tube. The inner wall of the assembled arc tube is fixed with a first heat insulation layer, the outer wall of the heat-insulating arc tube is fixed with a second heat insulation layer, and the inner wall of the heat-insulating arc tube is fixed with a third heat insulation layer.

2. The preheating device for emulsion explosive production pipeline according to claim 1, characterized in that: The sidewall of the assembly arc tube is fixed with multiple connecting lugs at equal intervals, and the assembly arc tubes are fixed together by mounting bolts.

3. The preheating device for emulsion explosive production pipeline according to claim 1, characterized in that: The surface of the assembly arc tube is provided with multiple through holes at equal intervals for moving the output end of the telescopic cylinder, and the surface of the assembly arc tube is provided with multiple mounting holes at equal intervals for mounting the temperature sensor.

4. The preheating device for emulsion explosive production pipeline according to claim 1, characterized in that: The curvature of the inner wall of the heat-insulating arc tube is adapted to the curvature of the surface of the feed tube.

5. The preheating device for emulsion explosive production pipeline according to claim 1, characterized in that: Both ends of the combined air guide tube are fixed with end plates, and the surfaces of both ends of the combined air guide tube are respectively fixed with an air inlet and an air outlet.

6. The preheating device for emulsion explosive production pipeline according to claim 1, characterized in that: The assembled arc tubes can be connected end to end, or spliced ​​together to form cylindrical pipe fittings.

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