An aqueous phase preparation vessel for emulsion explosives and a process method thereof

Abstract

This invention discloses an aqueous phase preparation tank for emulsion explosives, comprising a mixing tank and a recovery tank. The mixing tank has a lid, and a gas pipe is vertically inserted into the lid. Several identical aeration heads are installed on the gas pipe inside the mixing tank. An inlet pipe and an outlet pipe are installed at the upper and lower ends of the mixing tank, respectively. A conduit is connected to the lid, and the outlet end of the conduit is connected to the recovery tank and extends into its lower interior. A second liquid outlet pipe is vertically installed inside the recovery tank. A pressure gauge is installed on the lid. Gas valves are installed on both the connecting pipe and the conduit. This invention relates to the field of aqueous phase preparation technology. Steam with a certain pressure and temperature is introduced into the mixing tank using a pump, a gas pipe, and several aeration heads. The steam's turbulence and foaming action stirs, mixes, and heats the materials in the mixing tank, resulting in uniform mixing in all parts.

Description

Technical Field

[0001] This invention relates to the field of aqueous phase preparation technology, specifically to an aqueous phase preparation tank and process method for emulsion explosives. Background Technology

[0002] Emulsion explosives are emulsion-like explosives composed of an aqueous phase and an oil phase. They have good stability and explosive performance. The aqueous phase preparation method is a commonly used method in the preparation of emulsion explosives. The required water is added to a stirring container, and then an appropriate amount of emulsifier and other additives are added. The mixture is stirred and mixed thoroughly until a homogeneous aqueous solution is formed.

[0003] Existing aqueous phase preparation methods are very simple: materials are put into a preparation tank and stirred, while the solution inside the tank is heated using a coil. Stirring alone can achieve the mixing effect, but it is slow. If there are many other additives in the aqueous phase, it is difficult for them to blend quickly, resulting in stratification. This makes the solution in the preparation tank unevenly mixed in the upper, middle and lower layers. Moreover, the heating time using the coil is long, usually more than 2 hours. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an aqueous phase preparation tank and process method for emulsion explosives, solving the problems of uneven solution and long preparation time in existing aqueous phase preparation processes.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an aqueous phase preparation tank for emulsion explosives, comprising a mixing tank and a recovery tank. The mixing tank is provided with a tank cover, and a gas pipe is vertically inserted into the tank cover. Several aeration heads with identical structures are installed on the gas pipe and located inside the mixing tank. An inlet pipe and an outlet pipe are respectively installed at the upper and lower ends of the mixing tank. A conduit is connected to the tank cover, and the outlet end of the conduit is connected to the recovery tank and extends into the lower part of the recovery tank. A second liquid outlet pipe is vertically installed inside the recovery tank. A pressure gauge is installed on the tank cover, and gas valves are installed on both the connecting pipe and the conduit.

[0006] Preferably, the outlet end of the second outlet pipe penetrates the lower wall of the recovery tank and extends into the bottom of the recovery tank. A branch pipe is connected to the side wall of the second outlet pipe. The upper and lower ends of the recovery tank are respectively provided with a filling port and a discharge port.

[0007] Preferably, the recovery tank is equipped with a spiral coil, and the inlet and outlet of the spiral coil are respectively connected to an inlet pipe and an outlet pipe.

[0008] Preferably, one end of the air pipe, located outside the mixing tank, is connected to a connecting pipe, and one end of the connecting pipe is connected to a pump body.

[0009] Preferably, liquid valves are installed on the discharge pipe, the inlet pipe, the outlet, and the second liquid outlet pipe.

[0010] Preferably, the method includes:

[0011] S1: Add 20% water, 23% calcium nitrate, 56.7% ammonium nitrate, 0.1% citric acid, 0.1% phosphoric acid, and 0.1% foaming agent e to the mixing tank. At the same time, add water to the recovery tank through the filling port, enough to cover the lower end of the conduit by 10cm.

[0012] S2: Use pump body 6 to send heated steam into the gas pipe through the connecting pipe, and use several aeration heads with the same structure to add steam into the mixing tank, maintain the temperature in the mixing tank at 95℃±5℃ for 1 hour.

[0013] S3: Coolant is continuously circulated into the spiral coil through the inlet and outlet pipes. The vapor in the mixing tank will condense into water along the conduit and remain in the recovery tank.

[0014] S4: After 1 hour of processing, stop the steam supply, discharge and collect the aqueous phase in the mixing tank through the discharge pipe to complete the production, and finally discharge the liquid in the recovery tank through the discharge port.

[0015] Beneficial effects

[0016] This invention provides an aqueous phase preparation tank and process method for emulsion explosives, which has the following beneficial effects: Steam with a certain pressure and temperature is introduced into the mixing tank through a pump, gas pipe and several aeration heads. The steam turbulence and foaming action stirs, mixes and heats the materials in the mixing tank, ensuring that no stratification occurs in the mixing tank and that the materials are mixed evenly in all parts. The material can be mixed evenly and reach the required temperature range in a short time. During the rising process, the steam will carry away water-insoluble impurities in the solution from the mixing tank and eventually leave them in the recovery tank. Therefore, this design not only achieves rapid and uniform mixing and heating, but also removes impurities and improves the cleanliness of the aqueous phase. Attached Figure Description

[0017] Figure 1 This is a side sectional view of the present invention.

[0018] In the diagram: 1. Mixing tank; 2. Air pipe; 3. Aeration head; 4. Feed pipe; 5. Tank cover; 6. Pump body; 7. Pressure gauge; 8. Connecting pipe; 9. Conduit; 10. Recovery tank; 11. Filling port; 12. Discharge pipe; 13. Spiral coil; 14. Second discharge pipe; 15. Inlet pipe; 16. Outlet; 17. Front view of branch pipe; 18. Discharge pipe. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1 This invention provides a technical solution: an aqueous phase preparation tank for emulsion explosives, comprising a mixing tank 1 and a recovery tank 10. The mixing tank 1 is provided with a tank cover 5 on its upper part. A gas pipe 2 is vertically inserted into the tank cover 5. Several aeration heads 3 with the same structure are installed on the gas pipe 2 and located inside the mixing tank 1. A feed pipe 4 and a discharge pipe 18 are respectively installed at the upper and lower ends of the mixing tank 1. A conduit 9 is connected to the tank cover 5. The outlet end of the conduit 9 is connected to the recovery tank 10 and extends into the lower part of the recovery tank 10. A second liquid outlet pipe 14 is vertically installed inside the recovery tank 10. A pressure gauge 7 is installed on the tank cover 5. Gas valves are installed on both the connecting pipe 8 and the conduit 9.

[0021] A gas valve is installed on the conduit 9, and a pressure gauge 7 is installed on the tank cover 5. When steam is introduced through the pump body 6, this structure can adjust the pressure in the mixing tank 1, thereby fine-tuning the temperature and the crystallization point of the aqueous phase. This is beneficial for on-site adjustment and processing according to the actual situation.

[0022] Furthermore, the outlet end of the second outlet pipe 14 penetrates the lower wall of the recovery tank 10 and extends into the lower part of the recovery tank 10. A branch pipe 17 is connected to the side wall of the second outlet pipe 14. The upper and lower ends of the recovery tank 10 are respectively provided with a filling port 11 and a discharge port 16.

[0023] When the water level in the recovery tank 10 is too high, it will be discharged along the branch pipe 17 and the second outlet pipe 14.

[0024] Furthermore, the recovery tank 10 is equipped with a spiral coil 13, and the inlet and outlet of the spiral coil 13 are respectively connected to an inlet pipe 15 and an outlet pipe 12.

[0025] Cooling water needs to be introduced into the inlet pipe 15, outlet pipe 12, and spiral coil 13 during operation. This part is common technical knowledge, so there is no need to describe the water flow process in detail.

[0026] Furthermore, one end of the air pipe 2, located outside the mixing tank 1, is connected to a connecting pipe 8, and one end of the connecting pipe 8 is connected to a pump body 6.

[0027] Furthermore, liquid valves are installed on the discharge pipe 18, the feed pipe 4, the outlet 16, and the second liquid outlet pipe 14.

[0028] Furthermore, the method includes:

[0029] S1: Add 20% water, 23% calcium nitrate, 56.7% ammonium nitrate, 0.1% citric acid, 0.1% phosphoric acid, and 0.1% foaming agent e into mixing tank 1. At the same time, add water into recycling tank 10 through filling port 11, enough to cover the lower end of conduit 9 by 10cm.

[0030] S2: Use pump body 6 to send heated steam into air pipe 2 through connecting pipe 8, and use several aeration heads 3 with the same structure to add steam into mixing tank 1, maintain the temperature in mixing tank 1 at 95℃±5℃ for 1 hour.

[0031] S3: Coolant is continuously circulated into the spiral coil 13 through the inlet pipe 15 and the outlet pipe 12. The steam in the mixing tank 1 will condense into water along the conduit 9 and remain in the recovery tank 10.

[0032] S4: After 1 hour of processing, stop the steam supply, discharge the water phase in mixing tank 1 through discharge pipe 18 to collect, and complete the production. Finally, discharge the liquid in recovery tank 10 through discharge port 16.

[0033] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0034] Example: When using, first add 20% water, 23% calcium nitrate, 56.7% ammonium nitrate, 0.1% citric acid, 0.1% phosphoric acid, and 0.1% foaming agent e into the mixing tank 1. At the same time, add water into the recovery tank 10 through the filling port 11, enough to cover the lower end of the conduit 9 by 10cm.

[0035] Then, the pump body 6 is used to send the heated steam into the air pipe 2 through the connecting pipe 8. Several aeration heads 3 with the same structure are used to add steam to the mixing tank 1 to maintain the temperature in the mixing tank 1 at 95℃±5℃ for 1 hour.

[0036] Then, coolant is continuously circulated into the spiral coil 13 through the inlet pipe 15 and the outlet pipe 12. The steam in the mixing tank 1 will condense into water along the conduit 9 and remain in the recovery tank 10.

[0037] After the last hour of processing, the steam supply is stopped, and the aqueous phase in the mixing tank 1 is discharged and collected through the discharge pipe 18 to complete the production. Finally, the liquid in the recovery tank 10 is discharged through the discharge port 16.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An aqueous phase preparation vessel for an emulsion explosive, comprising a mixing vessel (1) and a recovery vessel (10), characterized in that, The mixing tank (1) is provided with a tank cover (5) on top. An air pipe (2) is vertically inserted into the tank cover (5). Several aeration heads (3) with the same structure are installed on the air pipe (2) and inside the mixing tank (1). The upper and lower ends of the mixing tank (1) are respectively provided with a feed pipe (4) and a discharge pipe (18). A conduit (9) is connected to the tank cover (5). The outlet end of the conduit (9) is connected to the recovery tank (10) and extends into the lower part of the recovery tank (10). A second liquid outlet pipe (14) is vertically installed inside the recovery tank (10). A pressure gauge (7) is installed on the tank cover (5). Air valves are installed on both the connecting pipe (8) and the conduit (9). The outlet end of the second outlet pipe (14) extends through the lower wall of the recovery tank (10) and into the bottom of the recovery tank (10). A branch pipe (17) is connected to the side wall of the second outlet pipe (14). The upper and lower ends of the recovery tank (10) are respectively provided with a filling port (11) and a discharge port (16). The recovery tank (10) is equipped with a spiral coil (13), and the inlet and outlet of the spiral coil (13) are respectively connected to an inlet pipe (15) and an outlet pipe (12).

2. The aqueous phase preparation tank for emulsion explosives according to claim 1, characterized in that, One end of the air pipe (2) and located outside the mixing tank (1) is connected to a connecting pipe (8), and one end of the connecting pipe (8) is connected to a pump body (6).

3. The aqueous phase preparation vessel for emulsion explosives according to claim 1, characterized in that, Liquid valves are installed on the discharge pipe (18), the feed pipe (4), the outlet (16), and the second liquid outlet pipe (14).

4. A method for preparing an aqueous phase of an emulsion explosive, characterized in that, The method includes: S1: Add 20% water, 23% calcium nitrate, 56.7% ammonium nitrate, 0.1% citric acid, 0.1% phosphoric acid, and 0.1% foaming agent e into the mixing tank (1), and at the same time add water into the recovery tank (10) through the filling port (11) until it covers the lower end of the conduit (9) by 10cm. S2: Use the pump body (6) to send the steam with temperature into the air pipe (2) through the connecting pipe (8), and use several aeration heads (3) with the same structure to add steam to the mixing tank (1) to maintain the temperature in the mixing tank (1) at 95℃±5℃ for 1 hour; S3: Coolant is continuously circulated into the spiral coil (13) through the inlet pipe (15) and outlet pipe (12). The steam in the mixing tank (1) will condense into water along the conduit (9) and remain in the recovery tank (10). S4: After 1 hour of processing, stop the steam supply, discharge the water phase in the mixing tank (1) through the discharge pipe (18) to collect it, and complete the production. Finally, discharge the liquid in the recovery tank (10) through the discharge port (16).

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