A device for recovering aqueous raw materials of emulsion explosives

Abstract

A device for recovering aqueous raw materials for emulsion explosives, in the field of emulsion explosive production equipment, includes: a pneumatic T-shaped three-way ball valve, a jacketed pipe assembly, a water circulation device, and an air pump. The upper end of the pneumatic T-shaped three-way ball valve is fixedly connected to the jacketed pipe assembly, which is fixedly connected to the water circulation device. A one-way valve is installed at the air outlet of the air pump, and the one-way valve is fixedly connected to the pneumatic T-shaped three-way ball valve. This device solves the problem mentioned in the background art: when ammonium nitrate aqueous solution, a raw material for emulsion explosives, is transported to the production process through pipelines, the temperature of the ammonium nitrate aqueous solution drops after the production process stops, easily causing crystallization in the pipeline, which can block the pipeline and affect the transport of raw materials.

Description

Technical Field

[0001] This utility model belongs to the field of equipment for the production of emulsion explosives, and in particular, it is a device for recovering aqueous raw materials of emulsion explosives. Background Technology

[0002] Emulsion explosives are water-in-oil emulsion explosives that use emulsifiers to uniformly disperse droplets of oxidizing salt aqueous solutions in a continuous oil-phase medium containing porous materials such as dispersed air bubbles or hollow glass microspheres.

[0003] Ammonium nitrate aqueous solution, a raw material for emulsion explosives, is transported to the production process through pipelines. After the production process stops, the temperature of the ammonium nitrate aqueous solution drops, which can easily cause crystallization in the pipeline, thus clogging the pipeline and affecting the transport of raw materials. Therefore, there is an urgent need for a device for recovering the aqueous raw materials of emulsion explosives to solve the above-mentioned technical problems. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned problems existing in the prior art and to provide a device for recovering aqueous raw materials of emulsion explosives.

[0005] A device for recovering aqueous raw materials of emulsion explosives includes: a pneumatic T-shaped three-way ball valve, a jacketed pipe assembly, a water circulation device, and an air pump. The upper end of the pneumatic T-shaped three-way ball valve is fixedly connected to the jacketed pipe assembly, and the jacketed pipe assembly is fixedly connected to the water circulation device. The air pump outlet is provided with a one-way valve, which is fixedly connected to the pneumatic T-shaped three-way ball valve.

[0006] The pneumatic T-shaped three-way ball valve is connected to a feed pipe at its left end, and a one-way valve is fixedly connected to the left end of the feed pipe. One-way valve is fixedly connected to the feed pipe and is located at the rear end of one-way valve. The pneumatic T-shaped three-way ball valve is connected to a discharge pipe at its right end.

[0007] The jacketed tube assembly includes: a recovery tube, a hot water tube, an aluminum plate, and a honeycomb plate. The lower end of the recovery tube is fixedly connected to the upper end of a pneumatic T-shaped three-way ball valve. The outer side of the recovery tube is spirally wound with a hot water tube. The upper end of the hot water tube is provided with a water outlet, and the lower end of the hot water tube is provided with a water inlet. The outer end of the hot water tube is wrapped with an aluminum plate, and the outer side of the aluminum plate is wrapped with a honeycomb plate.

[0008] The water circulation device includes: a water tank, a water collection hood, a conveying pipe, a rotating shaft, spiral blades, a motor, a water inlet, an electric heating element, and stainless steel balls. The water collection hood is fixed inside the water tank, and a conveying pipe is installed at the lower end of the water collection hood. The conveying pipe extends through the bottom surface of the water tank, with the inlet fixedly connected to the lower end of the conveying pipe and the outlet fixedly connected to the top surface of the water tank. One end of the rotating shaft rotatably penetrates the top surface of the water tank and is rotatably connected to the conveying pipe via a bracket. Spiral blades are fixed on the rotating shaft and are installed inside the conveying pipe, slidingly connected to the inner wall of the conveying pipe. A motor is fixed to the top surface of the water tank, and the motor's output shaft is fixedly connected to the rotating shaft. A water inlet is installed on the top surface of the water tank. The electric heating element is sealed and fixedly inserted into the water tank. Multiple stainless steel balls are installed inside the water tank.

[0009] The stainless steel ball is wrapped with a sponge, and the diameter of the stainless steel ball matches the diameter of the hot water pipe.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This invention provides a device for recovering aqueous raw materials of emulsion explosives, which can solve the problem mentioned in the background art: when the ammonium nitrate aqueous solution of emulsion explosives is transported to the production process through pipelines, the temperature of the ammonium nitrate aqueous solution drops after the production process stops, which easily causes crystallization in the pipeline, thus clogging the pipeline and affecting the transportation of raw materials. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the jacketed pipe assembly. Detailed Implementation

[0014] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0015] A device for recovering aqueous raw materials of emulsion explosives includes: a pneumatic T-shaped three-way ball valve 1, a jacketed tube assembly 2, a water circulation device 3, and an air pump 4. The upper end of the pneumatic T-shaped three-way ball valve 1 is fixedly connected to the jacketed tube assembly 2, and the jacketed tube assembly 2 is fixedly connected to the water circulation device 3. The air pump 4 is provided with a one-way valve at its outlet end, and the one-way valve is fixedly connected to the pneumatic T-shaped three-way ball valve 1.

[0016] The left end of the pneumatic T-shaped three-way ball valve 1 is connected to the feed pipe 1-1, and the left end of the feed pipe 1-1 is fixedly connected to the one-way valve 1-2. The one-way valve is fixedly connected to the feed pipe 1-1 and is located at the rear end of the one-way valve 1-2. The right end of the pneumatic T-shaped three-way ball valve 1 is connected to the discharge pipe 1-3.

[0017] The jacketed tube assembly 2 includes: a recovery tube 2-1, a hot water tube 2-2, an aluminum plate 2-3, and a honeycomb plate 2-4. The lower end of the recovery tube 2-1 is fixedly connected to the upper end of the pneumatic T-shaped three-way ball valve 1. The hot water tube 2-2 is spirally wound on the outer side of the recovery tube 2-1. The upper end of the hot water tube 2-2 is provided with a water outlet, and the lower end of the hot water tube 2-2 is provided with a water inlet. The outer end of the hot water tube 2-2 is wrapped with an aluminum plate 2-3, and the outer side of the aluminum plate 2-3 is wrapped with a honeycomb plate 2-4.

[0018] The water circulation device 3 includes: a water tank 3-1, a water collection cover 3-2, a conveying pipe 3-3, a rotating shaft 3-4, a spiral blade 3-5, a motor 3-6, a water inlet 3-7, an electric heating element 3-8, and a stainless steel ball 3-9. The water collection cover 3-2 is fixed inside the water tank 3-1. A conveying pipe 3-3 is installed at the lower end of the water collection cover 3-2. The conveying pipe 3-3 is fixedly extended through the bottom surface of the water tank 3-1. The inlet is fixedly connected to the lower end of the conveying pipe 3-3, and the outlet is fixedly connected to the top surface of the water tank 3-1. One end of the rotating shaft 3-4 is rotatably inserted into the water tank. The top surface of the water tank 3-1 is rotatably connected to the conveying pipe 3-3 via a bracket. A spiral blade 3-5 is fixed on the rotating shaft 3-4. The spiral blade 3-5 is disposed inside the conveying pipe 3-3 and slidably connected to the inner wall of the conveying pipe 3-3. A motor 3-6 is fixed on the top surface of the water tank 3-1. The output shaft of the motor 3-6 is fixedly connected to the rotating shaft 3-4. A water inlet 3-7 is provided on the top surface of the water tank 3-1. The electric heating tube 3-8 is sealed and fixedly inserted into the water tank 3-1. Multiple stainless steel balls 3-9 are disposed inside the water tank 3-1.

[0019] The stainless steel ball 3-9 is wrapped with a sponge, and the diameter of the stainless steel ball 3-9 matches the diameter of the hot water pipe 2-2.

[0020] Preferably, the pneumatic T-type three-way ball valve 1 is a stainless steel pneumatic insulated T-type three-way ball valve, such as Q647F. This is an existing technology that uses external purchases, so it will not be described in detail here.

[0021] Preferably, the air pump model 4 is EMPGA-380V-08, which is an existing technology that is purchased externally, so it will not be described in detail here.

[0022] Preferably, the electric heating element 3-8 is a 316L stainless steel flange type, which is the existing technology and is purchased externally, so it will not be elaborated further.

[0023] Preferably, the pneumatic T-shaped three-way ball valve 1 is controlled by air pump 2 SP 620 EC-BL 24V. Air pump 4 and air pump 2 communicate with a Siemens PLC and a WINCC human-machine interface. This is an existing technology that uses externally sourced components, so it will not be elaborated further.

[0024] The working principle of this utility model is as follows:

[0025] Open the valve of the storage tank containing ammonium nitrate solution. The raw material enters the feed pipe 1-1 through one-way valve 1-2 and then into the pneumatic T-shaped three-way ball valve 1. It is then transported to the production process through the discharge pipe 1-3. At this time, the upper end of the pneumatic T-shaped three-way ball valve 1 is closed, and one-way valve 1-2 prevents backflow of the raw material. When the production process stops, close the storage tank valve. Control the rotation of the pneumatic T-shaped three-way ball valve 1 to connect the feed pipe 1-1 with the recovery pipe 2-1. Alternatively, it can be connected to a Siemens PLC via WINCC communication. The pneumatic T-shaped three-way ball valve 1 is rotated by the control system. This device is connected to an external power source. When the air pump 4 is powered on, compressed air is blown out through the air outlet and enters the feed pipe 1-1 through the one-way valve. The compressed air blows out the raw material remaining in the feed pipe 1-1 through the recovery pipe 2-1. The upper end of the recovery pipe 2-1 is fixedly connected to the storage tank, which can blow the raw material back into the storage tank to realize the recovery of raw materials. At the same time, it can also prevent the crystallization phenomenon caused by the raw material residue. The one-way valve can prevent the raw material from flowing back. It can also communicate with Siemens PLC through WINCC communication to control the air pump 4.

[0026] After the production process stops, the raw materials cease flow, and the temperature gradually decreases. This temperature drop causes crystallization of the ammonium nitrate aqueous solution. Simultaneously, purging the feed pipe 1-1 with compressed air lowers the temperature of any remaining ammonium nitrate solution inside. Water is injected into the water tank 3-1 through the water inlet 3-7. The electric heating element 3-8 is energized to heat the water. Once heating is complete, the motor 3-6 is energized, driving the spiral blades 3-5 to rotate via the rotating shaft 3-4. The rotation of the spiral blades 3-5 causes the water to flow downwards through the conveying pipe 3-3 and the inlet into the hot water pipe 2-2. The hot water pipe 2-2 provides insulation and heating for the recovery pipe 2-1. This process helps maintain the temperature of the raw materials and prevents crystallization. The hot water in the hot water pipe 2-2 flows back to the water tank 3-1 through the outlet to complete the circulation. The stainless steel ball 3-9 sinks to the bottom of the water due to gravity and rolls down along the water collection cover 3-2 into the conveying pipe 3-3. Then, the spiral blade 3-5 rotates, driving the water and the stainless steel ball 3-9 downward together and into the hot water pipe 2-2. The sponge wrapped around the stainless steel ball 3-9 can clean the inner wall of the hot water pipe 2-2 to prevent scale from corroding the hot water pipe 2-2 and affecting the flow of water. The stainless steel ball 3-9 enters the water tank 3-1 through the outlet with the water flow to complete the circulation.

[0027] The aluminum plate 2-3 can reflect the heat generated by the hot water pipe 2-2 back to the recovery pipe 2-1 to prevent heat dissipation. At the same time, the multi-cavity structure of the honeycomb plate 2-4 can insulate against the external air temperature, further increasing the heat preservation effect. The honeycomb plate 2-4 has excellent compressive strength and can protect the recovery pipe 2-1.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for recovering aqueous raw materials from emulsion explosives, characterized in that: include: The pneumatic T-shaped three-way ball valve (1), the jacketed tube assembly (2), the water circulation device (3) and the air pump (4) are provided. The upper end of the pneumatic T-shaped three-way ball valve (1) is fixedly connected to the jacketed tube assembly (2). The jacketed tube assembly (2) is fixedly connected to the water circulation device (3). The air pump (4) is provided with a one-way valve at the air outlet end. The one-way valve is fixedly connected to the pneumatic T-shaped three-way ball valve (1).

2. The device for recovering aqueous raw materials of emulsion explosives according to claim 1, characterized in that: The pneumatic T-shaped three-way ball valve (1) is connected to the feed pipe (1-1) on the left end, and the feed pipe (1-1) is fixedly connected to the one-way valve (1-2) on the left end. The one-way valve is fixedly connected to the feed pipe (1-1) and is located at the rear end of the one-way valve (1-2). The pneumatic T-shaped three-way ball valve (1) is connected to the discharge pipe (1-3) on the right end.

3. The device for recovering aqueous raw materials of emulsion explosives according to claim 2, characterized in that: The jacketed tube assembly (2) includes: a recovery tube (2-1), a hot water tube (2-2), an aluminum plate (2-3), and a honeycomb plate (2-4). The lower end of the recovery tube (2-1) is fixedly connected to the upper end of the pneumatic T-shaped three-way ball valve (1). The outer side of the recovery tube (2-1) is spirally wound with the hot water tube (2-2). The upper end of the hot water tube (2-2) is provided with a water outlet, and the lower end of the hot water tube (2-2) is provided with a water inlet. The outer end of the hot water tube (2-2) is wrapped with an aluminum plate (2-3), and the outer side of the aluminum plate (2-3) is wrapped with a honeycomb plate (2-4).

4. The device for recovering aqueous raw materials of emulsion explosives according to claim 3, characterized in that: The water circulation device (3) includes: a water tank (3-1), a water collection cover (3-2), a conveying pipe (3-3), a rotating shaft (3-4), a spiral blade (3-5), a motor (3-6), a water inlet (3-7), an electric heating tube (3-8), and a stainless steel ball (3-9). The water collection cover (3-2) is fixed inside the water tank (3-1). The conveying pipe (3-3) is installed at the lower end of the water collection cover (3-2). The conveying pipe (3-3) is fixedly inserted through the bottom surface of the water tank (3-1). The inlet is fixedly connected to the lower end of the conveying pipe (3-3), and the outlet is fixedly connected to the top surface of the water tank (3-1). One end of the rotating shaft (3-4) is rotatably inserted into the water tank. The top surface of the water tank (3-1) is rotatably connected to the conveying pipe (3-3) via a bracket. A spiral blade (3-5) is fixed on the rotating shaft (3-4). The spiral blade (3-5) is set inside the conveying pipe (3-3) and is slidably connected to the inner wall of the conveying pipe (3-3). A motor (3-6) is fixed on the top surface of the water tank (3-1). The output shaft of the motor (3-6) is fixedly connected to the rotating shaft (3-4). A water inlet (3-7) is provided on the top surface of the water tank (3-1). The electric heating tube (3-8) is sealed and fixedly inserted into the water tank (3-1). Multiple stainless steel balls (3-9) are provided inside the water tank (3-1).

5. The device for recovering aqueous raw materials of emulsion explosives according to claim 4, characterized in that: The stainless steel ball (3-9) is wrapped with a sponge, and the diameter of the stainless steel ball (3-9) matches the diameter of the hot water pipe (2-2).

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