Emulsion explosive film forming and cooling device

Abstract

This utility model discloses a cooling device for forming emulsion explosive film, which includes a support mechanism, an extruder, a pressing device, a water cooling device, and an air cooling device. The support mechanism is fixedly connected to the outer wall of the extruder. The pressing device, water cooling device, and air cooling device are sequentially fixed on the surface of the movable plate of the support mechanism along the film conveying direction. The water cooling device includes a tank, a felt pad, and a water pipe. The opening of the tank is downward, and the felt pad is snapped into the inside of the tank. At least one water pipe is fixed to the top of the tank, and the water pipe is connected to the inside of the tank. The advantages of this utility model are: the bonded explosive film is cooled by the action of the felt pad and water pipe in the water cooling device. The amount of water used is small due to the action of the felt pad, which also reduces the technical problems caused by water spraying in the prior art. At the same time, the moisture in the felt pad helps to exchange heat with the molten colloid, reducing the impact of the molten colloid on the emulsion explosive.

Description

Technical Field

[0001] This utility model relates to the field of emulsion explosives technology, specifically to an emulsion explosive film forming and cooling device. Background Technology

[0002] As a typical water-containing explosive, emulsion explosives commonly use composite film materials in their finished product packaging. Specifically, the packaging material for gel-like emulsion explosive rolls is a plastic composite film. In the production process, the plastic composite film first passes through the loading former and loading tube of a loading machine. During this process, the core adhesive material of the composite film is polyethylene, which melts at a high temperature of approximately 220°C. Subsequently, the nozzle of the extruder extrudes the molten polyethylene as two streams of fluid with a diameter of approximately 0.5 mm, using this fluid to bond the plastic composite film together at the overlapping areas of its axial edges into a roll structure. After bonding, the equipment immediately fills the roll with explosives, ultimately forming a gel-like emulsion explosive roll.

[0003] After the explosive loading operation is completed, the polyethylene material used to bond the plastic composite film cannot cool and solidify in time. Simultaneously, the emulsion explosive enters a foaming stage after loading, during which the explosive body generates internal pressure. Under the combined effects of the unsolidified polyethylene and the explosive pressure, the bonding joints of the plastic composite film are highly susceptible to cracking, leading to explosive leakage. Such leakage not only directly increases the product scrap rate and causes economic losses, but also introduces safety hazards during production, threatening the safety of production operations.

[0004] An existing patent (publication number CN209778696U) discloses a cooling device for an emulsion explosive composite film, which includes a water mist nozzle for spraying cooling water mist onto the bonding area of ​​the emulsion explosive composite film. The water inlet of the water mist nozzle is connected to a water source through a water pipe, and the air inlet of the water mist nozzle is connected to a pressure reducing valve, an air storage tank and an air compressor in sequence through an air pipe.

[0005] The existing technical problem is that using direct water spraying for cooling causes water to easily accumulate on the surrounding ground. This water is difficult to clean and can easily cause accidents. At the same time, water spraying for cooling results in a large amount of water loss. Utility Model Content

[0006] The purpose of this invention is to provide a cooling device for forming emulsion explosive film.

[0007] This utility model is implemented by the following technical solution: an emulsion explosive film forming and cooling device, which includes a support mechanism, an extruder, a pressing device, a water cooling device, and an air cooling device; The support mechanism is fixedly connected to the outer wall of the extruder, and the pressing device, the water cooling device, and the air cooling device are sequentially fixed on the surface of the movable plate of the support mechanism along the drug film conveying direction. The water cooling device includes a tank, a felt pad, and a water pipe. The opening of the tank faces downward, and the felt pad is snapped into the inside of the tank. At least one water pipe is fixed to the top of the tank and communicates with the inside of the tank.

[0008] Furthermore, the support mechanism includes a support plate, a mounting plate, a telescopic device, and a movable plate; The outer wall of the extruder is fixed with a vertically arranged support plate, and a horizontally arranged mounting plate is fixed on the surface of the support plate. A vertically arranged telescopic device is fixed at the top center of the mounting plate, and the telescopic end of the telescopic device movably passes through the mounting plate and is fixedly connected to the horizontally arranged movable plate. Furthermore, the telescopic device is provided with parallel guide rods on both sides. One end of the guide rod is fixedly connected to the movable plate, and the other end of the guide rod movably passes through the mounting plate and is located on the outside of the mounting plate.

[0009] Furthermore, a temperature sensor is fixed to the support plate between the water-cooling device and the air-cooling device.

[0010] Furthermore, the air-cooling device includes a nozzle and an air duct. The nozzle is fixedly connected to the surface of the support plate, and the air duct is fixedly connected to the inlet of the nozzle.

[0011] Furthermore, the clamping device includes an upper support, a lower support, an elastic element, and a roller. The upper support is fixedly connected to the surface of the support plate, the bottom end of the upper support is connected to the lower support through the elastic element, and the roller is rotatably connected to the middle of the lower support.

[0012] The advantages of this utility model are: the bonded explosive film is cooled by the action of the felt pad and water pipe in the water cooling device. The amount of water used is small due to the action of the felt pad, which can also reduce the technical problems caused by water spraying in the prior art. At the same time, the water in the felt pad can exchange heat with the molten colloid, which reduces the impact of the molten colloid on the emulsion explosive. The adhesive film is heated by a water cooling device. A temperature sensor detects the temperature of the film after the heat exchange. The temperature sensor is connected to the controller to display the temperature value. When the detected temperature value is higher than the production requirement value, the air cooling device is turned on for heat exchange. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the utility model; In the picture: Support mechanism 1, support plate 1.1, mounting plate 1.2, telescopic device 1.3, movable plate 1.4, guide rod 1.5, glue extruder 2, pressing device 3, upper support 3.1, lower support 3.2, elastic element 3.3, roller 3.4, water cooling device 4, tank 4.1, felt pad 4.2, water pipe 4.3, air cooling device 5, nozzle 5.1, air duct 5.2, medicine film 6, temperature sensor 7, medicine loading pipe 8. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figure 1 As shown, the emulsion explosive film forming and cooling device includes a support mechanism 1, an extruder 2, a pressing device 3, a water cooling device 4, and an air cooling device 5. The support mechanism 1 is fixedly connected to the outer wall of the extruder 2. The movable plate 1.4 of the support mechanism 1 is sequentially fixed with a pressing device 3, a water cooling device 4, and an air cooling device 5 along the conveying direction of the film 6. The water-cooling device 4 includes a tank 4.1, a felt pad 4.2, and a water pipe 4.3. The opening of the tank 4.1 faces downwards, and the felt pad 4.2 is snapped into the inside of the tank 4.1. At least one water pipe 4.3 is fixed to the top of the tank 4.1, and the water pipe 4.3 communicates with the inside of the tank 4.3. Under the action of the felt pad 4.2 and the water pipe 4.3 in the water-cooling device 4, the bonded explosive film 6 is cooled, reducing the technical problems caused by water spraying in the prior art. At the same time, the moisture in the felt pad 4.2 helps to exchange heat with the molten colloid, reducing the subsequent impact of the molten colloid on the emulsion explosive. The water pipe 4.3 is connected to a cooling water tank (not shown in the figure), and a flow pump (not shown in the figure) sends the cooling water in the tank to the felt pad 4.2.

[0017] The support mechanism 1 includes a support plate 1.1, a mounting plate 1.2, a telescopic device 1.3, and a movable plate 1.4. The outer wall of the extruder 2 is fixed with a vertically arranged support plate 1.1. The surface of the support plate 1.1 is fixed with a horizontally arranged mounting plate 1.2. The top center of the mounting plate 1.2 is fixed with a vertically arranged telescopic device 1.3. The telescopic end of the telescopic device 1.3 extends through the mounting plate 1.2 and is fixedly connected to the horizontally arranged movable plate 1.4. Under the action of the telescopic device 1.3, the movable plate 1.4 can be moved up and down, which in turn moves the pressing device 3, the water cooling device 4, and the air cooling device 5 up and down, facilitating disassembly or maintenance.

[0018] The telescopic device 1.3 has parallel guide rods 1.5 on both sides. One end of the guide rod 1.5 is fixedly connected to the movable plate 1.4, and the other end of the guide rod 1.5 movably passes through the mounting plate 1.2 and is placed on the outside of the mounting plate 1.2. Under the action of the guide rod 1.5, the movement direction of the movable plate 1.4 is limited. In this embodiment, the telescopic device 1.3 is either an electric push rod or a cylinder.

[0019] A temperature sensor 7 is fixed on the support plate 1.1 between the water cooling device 4 and the air cooling device 5. The water cooling device 4 exchanges heat with the bonded drug film 6. The temperature sensor 7 detects the temperature of the drug film 6 after heat exchange. The temperature sensor 7 is connected to the controller to display the temperature value. When the detected temperature value is greater than the production requirement value, the air cooling device 5 is turned on for heat exchange.

[0020] The air-cooling device 5 includes a nozzle 5.1 and an air duct 5.2. The nozzle 5.1 is fixedly connected to the surface of the support plate 1.1. The inlet of the nozzle 5.1 is fixedly connected to the air duct 5.2. Cooling air is sent to the nozzle 5.1 through the air duct 5.2. The cooling air comes from an air tank. The cooling air is used to dissipate heat from the bonded drug film 6. The air-cooling device 5 is assisted by the water-cooling device 4.

[0021] The pressing device 3 includes an upper support 3.1, a lower support 3.2, an elastic element 3.3, and a roller 3.4. The upper support 3.1 is fixedly connected to the surface of the support plate 1.1. The bottom end of the upper support 3.1 is connected to the lower support 3.2 through the elastic element 3.3. The roller 3.4 is rotatably connected to the middle of the lower support 3.2. After the molten polyethylene is applied to the overlapping part of the edge of the medicine film 6 through the nozzle of the extruder 2, the adhesion is completed. Under the action of the pressing device 3, it is squeezed to make the overlapping part of the edge of the medicine film 6 firmly bonded. The elastic element is a buffer spring.

[0022] The specific operation process of this embodiment is as follows: Place the felt pad 4.2 inside the tank 4.1, and then use the telescopic device 1.3 to make the roller 3.4 of the pressing device 3, the felt pad 4.2 of the water cooling device 4 contact the surface of the drug film 6, and send cooling water to the water cooling device 4 through the cooling water tank and the flow pump to wet the felt pad 4.2. The plastic composite film needs to be bent and wrapped around the drug loading forming device and the drug loading tube 8 of the drug loading machine. The molten polyethylene is extruded through the nozzle of the extruder 2 to the overlapping part of the axial edge of the drug film 6. Under the action of the pressing device 3, the overlapping part of the axial edge on both sides is pressed down under the support of the drug loading tube 8. Then, during the forward conveying of the drug film 6, the bonding area is cooled by the felt pad 4.2 of the water cooling device 4. The temperature of the drug film 6 after cooling is detected in real time by the temperature sensor 7. When the temperature does not meet the production requirements, the air cooling device 5 is activated, and the nozzle 5.1 of the air cooling device 5 is used to reduce the temperature of the drug film 6.

[0023] 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 should be included within the protection scope of the present utility model.

Claims

1. A device for forming and cooling emulsion explosive film, characterized in that, It includes a support mechanism, an extruder, a pressing device, a water cooling device, and an air cooling device; The support mechanism is fixedly connected to the outer wall of the extruder, and the pressing device, the water cooling device, and the air cooling device are sequentially fixed on the surface of the movable plate of the support mechanism along the drug film conveying direction. The water cooling device includes a tank, a felt pad, and a water pipe. The opening of the tank faces downward, and the felt pad is snapped into the inside of the tank. At least one water pipe is fixed to the top of the tank and communicates with the inside of the tank.

2. The emulsion explosive film forming and cooling device according to claim 1, characterized in that, The support mechanism includes a support plate, a mounting plate, a telescopic device, and a movable plate. The support plate is vertically fixed to the outer wall of the extruder. The mounting plate is horizontally fixed to the surface of the support plate. The telescopic device is vertically fixed to the top center of the mounting plate. The telescopic end of the telescopic device movably passes through the mounting plate and is fixedly connected to the horizontally fixed movable plate.

3. The emulsion explosive film forming and cooling device according to claim 2, characterized in that, The telescopic device is provided with parallel guide rods on both sides. One end of the guide rod is fixedly connected to the movable plate, and the other end of the guide rod movably passes through the mounting plate and is located on the outside of the mounting plate.

4. The emulsion explosive film forming and cooling device according to claim 3, characterized in that, A temperature sensor is fixed to the support plate between the water-cooling device and the air-cooling device.

5. The emulsion explosive film forming and cooling device according to claim 4, characterized in that, The air-cooling device includes a nozzle and an air duct. The nozzle is fixedly connected to the surface of the support plate, and the air duct is fixedly connected to the inlet of the nozzle.

6. The emulsion explosive film forming and cooling device according to claim 5, characterized in that, The clamping device includes an upper support, a lower support, an elastic element, and a roller. The upper support is fixedly connected to the surface of the support plate. The bottom end of the upper support is connected to the lower support through the elastic element. The roller is rotatably connected to the middle part of the lower support.

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