Feed pipe emptying and cleaning device

Abstract

The utility model discloses a kind of emptying cleaning devices of feed pipeline, including feed pipe, one end keeps being communicated with movable pipe, another end extends upwards and is communicated with the top of high tank;Feed pump, is set on movable pipe;Cleaning pipe, one end is communicated with feed pipe, and another end is provided with cleaning pump;The feed pipe, movable pipe and cleaning pipe are connected by three-way pipe, and the movable pipe is movably installed between three-way pipe and feed pump.The cleaning device is set through the setting of cleaning pump, can avoid that feed pump is stopped running, feed pipe inside material liquid is accumulated in pipeline due to height difference and causes crystallization blockage, affect subsequent feed.

Description

Technical Field

[0001] This utility model relates to the field of emulsion explosives processing technology, specifically a feed pipe venting and cleaning device. Background Technology

[0002] Emulsion explosives, as an important class of industrial explosives, rely on emulsifiers in their core preparation process. These emulsifiers uniformly disperse droplets of oxidant salt aqueous solutions within a continuous oil-phase medium containing porous materials such as dispersed air bubbles or hollow glass microspheres, forming a stable water-in-oil emulsion structure. In the industrial production of emulsion explosives, the mixing of aqueous and oil-phase materials is a crucial preliminary step. The two must first be mixed to form a liquid material before proceeding to the subsequent emulsification stage to prepare solid emulsion explosives.

[0003] Currently, the industry commonly employs a "low-level storage - pipeline transportation - high-level mixing" process for mixing aqueous and oil-phase materials (both primarily liquid). This involves storing the aqueous and oil-phase materials separately in low-level tanks, then simultaneously pumping both materials to a high-level mixing tank via a liquid pump and associated pipelines. While this process meets basic production needs, it has significant technical drawbacks in practical application. Specifically, after each production shift or when switching production types (i.e., production changeover), the remaining oil-phase material in the feed pipe must be thoroughly drained to prevent cross-contamination or disruption to subsequent production. However, due to the height difference between the high-level mixing tank and the low-level tank, when the liquid pump stops operating, the oil-phase material near the pump in the feed pipe accumulates at the bottom of the pipe due to gravity, preventing it from naturally flowing into the high-level tank or back to the low-level tank.

[0004] However, some oil-phase materials (such as liquid ammonium nitrate) slow down their molecular motion rate when at rest or when the ambient temperature decreases, making them prone to phase transitions and solid crystal formation. If the oil-phase material accumulated in the feed pipe is not promptly transported to the high-level tank and discharged by the liquid pump, it will form crystal blocks in the pipe within a short period of time. As the production cycle extends, the crystal blocks will continue to accumulate and increase in size. On the one hand, this will reduce the flow cross-section of the pipe, leading to a decrease in material flow and conveying efficiency during subsequent transport. On the other hand, it will directly cause blockage of the feed pipe, forcing production to be interrupted. The pipe needs to be manually disassembled for cleaning, which not only increases the labor intensity of operators but also poses risks such as material leakage and safety accidents, seriously affecting the continuity, safety, and economy of emulsion explosive production. Utility Model Content

[0005] Therefore, in order to solve the above-mentioned shortcomings, this utility model provides a feed pipe purging and cleaning device. This cleaning device is used to clean the oil phase material accumulated in the feed pipe due to the height difference when the liquid pump stops running, so as to avoid the accumulation causing crystallization blockage and affecting subsequent use. In this cleaning device, by using the setting of cleaning pump and cleaning pipe, when the feed pump stops running, its cleaning pump immediately runs to continue to transport the liquid material in the feed pipe that has not been transported to the high-level tank, so as to avoid accumulation and crystallization problems.

[0006] This utility model is implemented by constructing a feeding pipe emptying and cleaning device, including a feeding pipe, one end of which is connected to the movable pipe, and the other end extends upward and is connected to the top of the high-level tank. The feed pump is mounted on the movable pipe; The cleaning pipe is connected to the feed pipe at one end and a cleaning pump is installed at the other end. The feed pipe, movable pipe, and cleaning pipe are connected by a T-connector, and the movable pipe is movably installed between the T-connector and the feed pump.

[0007] Preferably, the feed pump is a liquid pump and the cleaning pump is a gas pump, and a liquid inlet pipe and a gas inlet pipe are also provided at the feed end of the feed pump and the cleaning pump.

[0008] Preferably, the bottom side wall of the high-level tank is also provided with a discharge pipe, and a pressure relief valve is also provided at the top of the high-level tank.

[0009] Preferably, valves are provided on the feed pipe, discharge pipe and cleaning pipe.

[0010] Preferably, both ends of the movable tube are connected to the tee pipe and the feed pump via flanges.

[0011] This utility model has the following beneficial effects: Preventing crystallization blockage: This cleaning device is equipped with a cleaning pump and a cleaning pipe on the feed pipe. When the feed pump stops, the cleaning pump starts in time to continue to transport the residual oil phase in the feed pipe that has not been delivered to the mixing tank, thereby preventing the material from accumulating and crystallizing in the feed pipe and ensuring smooth pipeline flow.

[0012] Improved production efficiency and safety: This cleaning device eliminates the need for manual unblocking during downtime, reducing production interruptions and material waste; it also reduces the labor intensity of personnel disassembling pipelines and the risk of material leakage, thus improving economic efficiency.

[0013] Ensuring product quality: This cleaning device uses a physical conveying method, which eliminates the need for additional heating, preventing the oil phase from deteriorating due to localized overheating and ensuring the stable quality of the emulsion explosive.

[0014] Easy to adapt and promote: The cleaning pump and cleaning pipe in this cleaning device can be directly connected to the feed pipe in the existing factory through a T-junction, without the need for large-scale modification. Its simple structure and low cost facilitate rapid application in the industry. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the specific embodiments of the present invention to explain the present invention, but do not constitute any limitation on the present invention. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a frontal view of the present invention; In the diagram: 1. High-level tank; 2. Feed pipe; 3. Discharge pipe; 4. Pressure relief valve; 5. Valve; 6. Feed pump; 7. Liquid inlet pipe; 8. Movable pipe; 9. T-connector; 10. Cleaning pipe; 11. Cleaning pump; 12. Air inlet pipe. Detailed Implementation

[0016] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of this utility model and are not intended to limit this utility model in any way. The accompanying drawings in this utility model are only for illustrative purposes and to facilitate understanding of the embodiments and are not intended to limit this utility model in any way.

[0017] It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0018] As described in the background section, when the existing high-level mixing tank stops feeding, due to the height difference of the feed pipe, a portion of the liquid material accumulates in the feed pipe between the feed pump and the mixing tank. However, some oil-phase materials (such as liquid ammonium nitrate) slow down their molecular motion rate when in a static state or when the ambient temperature decreases, making them prone to phase change and solid crystal formation, which leads to blockage in the feed pipe.

[0019] For the reasons stated above, please refer to the appendix for solutions to these problems. Figure 1 and attached Figure 2 This utility model provides a feeding pipe emptying and cleaning device, including a feeding pipe 2, one end of which is connected to the movable pipe 8, and the other end extends upward and is connected to the top of the high-level tank 1. Feed pump 6 is installed on movable pipe 8; The cleaning pipe 10 is connected to the feed pipe 2 at one end and the cleaning pump 11 is installed at the other end; The feed pipe 2, movable pipe 8 and cleaning pipe 10 are connected by a tee pipe 9, and the movable pipe 8 is movably installed between the tee pipe 9 and the feed pump 6.

[0020] To facilitate the continued delivery of liquid materials without affecting their quality when the feed pump stops operating, a feasible solution is provided here. The feed pump 6 is a liquid pump, and the cleaning pump 11 is a gas pump. A liquid inlet pipe 7 and an air inlet pipe 12 are also provided at the feed inlet ends of the feed pump 6 and the cleaning pump 11.

[0021] As mentioned above, a feed pump is a liquid pump designed to facilitate the transport of liquid materials. In actual use, a valve may be installed at the feed end of the liquid pump. When it is necessary to stop feeding, the feed valve is closed, and then the liquid pump is restarted to continue transporting the residual liquid in the feed pipe. However, this method will cause the liquid pump to run dry, resulting in rapid damage to mechanical parts, localized overheating, and pump failure. Therefore, when the feed end of the liquid pump stops supplying liquid, the liquid pump should be shut down in time to avoid running dry and causing a series of problems.

[0022] To avoid increasing the pressure inside the high-level tank when the liquid is continuously transported through the cleaning pump in the feed pipe, a feasible solution is provided here: a discharge pipe 3 is also provided on the bottom side wall of the high-level tank 1, and a pressure relief valve 4 is also provided on the top of the high-level tank 1.

[0023] As mentioned above, installing a discharge pipe facilitates the discharge of liquid from the high-level tank, and installing a pressure relief valve can effectively prevent tank cracks caused by excessive gas pressure inside the high-level tank.

[0024] To prevent the gas pump from malfunctioning due to some of the liquid entering the cleaning pump from the cleaning pipe during feeding, a feasible solution is provided here: valves 5 are installed on the feed pipe 2, discharge pipe 3, and cleaning pipe 10.

[0025] In practical use, because the cleaning pipe is always installed in the feed pipe and always maintains a gap with the feed pump, the liquid will accumulate in the pipe corresponding to the gap. In order to avoid the liquid accumulating in the pipe crystallizing and clogging the pipe, a feasible solution is provided here: the two ends of the movable pipe 8 are connected to the tee pipe 9 and the feed pump 6 through flanges.

[0026] In this embodiment, to prevent some of the liquid from flowing back into the feed pump and crystallizing when the feed pump stops running, a valve can be installed on the discharge end of the feed pump to prevent the liquid from flowing back.

[0027] The above description is a detailed description of the preferred embodiments of the present utility model. However, the embodiments are not intended to limit the scope of the patent application of the present utility model. All equivalent changes or modifications made under the technical spirit of the present utility model should fall within the patent scope covered by the present utility model.

Claims

1. A feed pipe venting and cleaning device, characterized in that: include, The feed pipe (2) is connected to the movable pipe (8) at one end and extends upward and connects to the top of the high-level tank (1) at the other end. The feed pump (6) is mounted on the movable pipe (8); The cleaning pipe (10) is connected to the feed pipe (2) at one end and a cleaning pump (11) is installed at the other end. The feed pipe (2), the movable pipe (8) and the cleaning pipe (10) are connected by a tee pipe (9), and the movable pipe (8) is movably installed between the tee pipe (9) and the feed pump (6).

2. The feed pipe venting and cleaning device according to claim 1, characterized in that: The feed pump (6) is a liquid pump, and the cleaning pump (11) is a gas pump. A liquid inlet pipe (7) and an air inlet pipe (12) are also provided at the feed end of the feed pump (6) and the cleaning pump (11).

3. The feed pipe venting and cleaning device according to claim 1, characterized in that: The bottom side wall of the high-level tank (1) is also provided with a discharge pipe (3), and a pressure relief valve (4) is also provided at the top of the high-level tank (1).

4. The feed pipe venting and cleaning device according to claim 3, characterized in that: Valves (5) are provided on the feed pipe (2), discharge pipe (3) and cleaning pipe (10).

5. The feed pipe venting and cleaning device according to claim 1, characterized in that: The two ends of the movable pipe (8) are connected to the tee pipe (9) and the feed pump (6) through flanges.

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