Safe feeding device for explosive powder particles

Abstract

The utility model relates to the technical field of powder feeding devices, in particular to a safe explosive powder feeding device which comprises a reaction kettle, a bag breaking device and a material conveying pipeline, the two ends of the material conveying pipeline are connected with the feeding end of the reaction kettle and the discharging end of the bag breaking device respectively, and a quick-opening valve is arranged on the material conveying pipeline. The reaction kettle is connected with a vacuumizing pipe and a first inflating pipe, and the bag breaking device is connected with a second inflating pipe. According to the explosive powder feeding device, the reaction kettle, the bag breaking device and the material conveying pipeline are arranged, the quick-opening valve is arranged on the material conveying pipeline, the reaction kettle is connected with the vacuumizing pipe and the first inflation pipe, the bag breaking device is connected with the second inflation pipe, and explosive powder feeding is achieved through vacuumizing of the reaction kettle, inflation and pressurization in the bag breaking device and pressure difference formed in the reaction kettle and the bag breaking device; the feeding device is suitable for feeding in different working environments and occasions, high in safety, high in universality and more suitable for adding small-batch powder.

Description

Technical Field

[0001] This utility model relates to the technical field of powder addition devices, and in particular to a safe addition device for explosive powder particles. Background Technology

[0002] In industrial production processes, especially in the chemical industry, it is often necessary to add powdered materials to equipment such as reactors or separators. When these materials are explosive, the process of adding them is extremely dangerous. To reduce this danger, production and research personnel have adopted various methods and equipment, which can be summarized as fluid transportation, mechanical transportation, and the use of inert gas protection.

[0003] Fluid conveying uses process fluids or air / nitrogen as working fluids, relying on the fluid's viscosity to entrain and carry materials. Mechanical conveying methods are also diverse, such as ribbons, chains, diaphragm pumps, etc. Because equipment manufacturers often lack understanding of the specific hazards in user scenarios, seemingly perfect conveying equipment often fails to achieve safe operation. In other words, powder conveying equipment lacks broad applicability for safe use.

[0004] Therefore, it is necessary to propose an improvement to overcome the shortcomings of the existing technology. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the prior art and provide a safe feeding device for explosive powder particles, solving the problems of general powder particle conveying and explosive powder particle delivery in various dangerous situations, and improving the applicability of the overall device.

[0006] The technical solution of this utility model is:

[0007] A safe feeding device for explosive powder includes a reactor, a bag breaker, and a conveying pipe. The two ends of the conveying pipe are connected to the feed end of the reactor and the discharge end of the bag breaker, respectively. A quick-opening valve is provided on the conveying pipe. A vacuum tube and a first gas filling tube are connected to the reactor, and a second gas filling tube is connected to the bag breaker.

[0008] The device includes a vacuum control valve installed on the vacuum tube, a first inflation control valve installed on the first inflation tube, and a second inflation control valve installed on the second inflation tube. The second inflation tube is used for inflation and pressurization inside the bag breaker, and the vacuum tube is used for vacuuming inside the reactor. The powder is conveyed by the pressure difference between the bag breaker and the reactor, making it suitable for feeding explosive powder particles in different situations and increasing the versatility of the feeding device.

[0009] As a preferred technical solution, the upper end of the bag-breaking device is provided with a sealing cap.

[0010] The sealing cap and the bag breaker body are connected by a quick flange seal, which facilitates the feeding and sealed conveying of powder, increasing the convenience of operation for workers.

[0011] As a preferred technical solution, the sealing cover is provided with a telescopic cylinder, and the piston rod of the telescopic cylinder is provided with a lifting cutter head.

[0012] The lifting cutter head is driven to move up and down by a telescopic cylinder, which is used to cut powder bags of different heights. It has high bag breaking efficiency, improves the powder feeding efficiency, and increases the versatility of the bag breaker.

[0013] As a preferred technical solution, the bag-breaking device is equipped with a support frame, on which a rotating shaft is rotatably mounted. A drive motor is provided at the lower end of the support frame, and the output end of the drive motor is connected to the rotating shaft. A rotating cutter head is provided on the rotating shaft.

[0014] The drive motor drives the rotating cutter head to rotate, which is used not only for cutting and crushing powder bags to ensure the cutting accuracy of the powder bags, but also for cutting and crushing powder materials to further ensure the powder conveying efficiency.

[0015] As a preferred technical solution, the bag-breaking device is equipped with a filter screen, which is located at the lower end of the support frame.

[0016] The filter screen is located above the discharge end of the bag breaker and is used to filter powder bags and lumpy powder to avoid clogging the conveying pipe, filter out lumpy powder, and ensure the reaction efficiency of powder in industrial production.

[0017] As a preferred technical solution, the lower end of the bag breaker is provided with a "V"-shaped collection hopper, and the bottom of the collection hopper is provided with a discharge port.

[0018] The "V"-shaped hopper facilitates the collection of powder materials, and the discharge port at the bottom makes it easier to transport the powder materials, thus improving the conveying efficiency.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This utility model discloses a safe feeding device for explosive powder particles, which includes a reaction vessel, a bag breaker, and a conveying pipeline. The conveying pipeline is equipped with a quick-opening valve. The reaction vessel is connected to a vacuum tube and a first gas filling tube, and the bag breaker is connected to a second gas filling tube. By evacuating the reaction vessel and pressurizing the bag breaker, a pressure difference is formed between the reaction vessel and the bag breaker, thus realizing the feeding of explosive powder particles. It is suitable for feeding in different working environments and occasions, has high safety, strong versatility, and is more suitable for adding small batches of powder. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the structure of the safety feeding device for explosive powders according to this utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the bag-breaking device of this utility model.

[0023] In the diagram: 1. Vacuum tube; 2. First inflation tube; 3. Reactor; 4. Quick-opening valve; 5. Second inflation tube; 6. Sealing cap; 7. Bagged powder; 8. Bag breaker; 9. Conveying pipe; 10. Telescopic cylinder; 11. Discharge port; 12. Drive motor; 13. Lifting cutter head; 14. Rotating cutter head; 15. Support frame; 16. Rotating shaft; 17. Filter screen; 18. Collection hopper. Detailed Implementation

[0024] To make the technical means, technical features, utility model purpose and technical effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0025] Example 1:

[0026] like Figure 1 The diagram shown is a structural schematic of the safety feeding device for explosive powders according to this utility model.

[0027] The safety feeding device for explosive powder in this embodiment includes a reactor 3, a bag breaker 8, and a conveying pipe 9. The two ends of the conveying pipe 9 are connected to the inlet of the reactor 3 and the outlet of the bag breaker 8, respectively. A quick-opening valve 4 is installed on the conveying pipe 9. When the quick-opening valve 4 is closed, it cuts off the gas passage between the reactor 3 and the bag breaker 8, allowing for vacuuming of the reactor 3 and pressurization of the bag breaker 8. A vacuuming pipe 1 and a first gas filling pipe 2 are connected to the reactor 3. A vacuuming control valve is installed on the vacuuming pipe 1 to control the vacuuming operation inside the reactor 3. A first gas filling control valve is installed on the first gas filling pipe 2 to control the gas replacement inside the reactor 3, replacing the reactor 3 with nitrogen, the working fluid. A second inflation pipe 5 is connected to the bag breaker 8. A second inflation control valve is installed on the second inflation pipe 5. The second inflation control valve is used to control the gas replacement and inflation pressurization operation in the bag breaker 8. The gas in the bag breaker 8 is replaced with working fluid nitrogen. Before the powder is conveyed, the inflation pressurization operation is carried out, and a pressure difference is formed between the bag breaker 8 and the reactor 3. The powder is conveyed from the bag breaker 8 to the reactor 3 through the nitrogen fluid.

[0028] like Figure 2 The diagram shown is a schematic representation of the internal structure of the bag-breaking device of this utility model.

[0029] The bag breaker 8 shown has a sealing cap 6 at its upper end, which is sealed to the body of the bag breaker 8 via a quick flange. Two sets of telescopic cylinders 10 are fixed to the upper end of the sealing cap 6. The piston rods of both sets of telescopic cylinders 10 extend downwards, and lifting cutter heads 13 are fixed to the piston rods of both sets of telescopic cylinders 10. The lifting cutter heads 13 are driven to move up and down by the telescopic cylinders 10, and are used to cut and break bags of powder 7 of different heights.

[0030] A support frame 15 is fixed to the lower end of the bag breaker 8. A rotating shaft 16 is rotatably mounted at the center of the support frame 15. A rotating cutter head 14 is mounted on the rotating shaft 16. A drive motor 12 is fixed to the lower end face of the support frame 15. The output end of the drive motor 12 is fixedly connected to the rotating shaft 16. The drive motor 12 drives the rotating shaft 16 to rotate, and the rotating shaft 16 drives the rotating cutter head 14 to rotate. It is used not only for cutting and crushing the filling belt of bagged powder 7, but also for crushing and cutting block powder.

[0031] The bag breaker 8 has a filter screen 17 fixed inside. The filter screen 17 is fixed to the lower end of the support frame 15 and is used to filter the feeding belt and lumpy powder, increase the powder conveying efficiency, and prevent the feeding belt or lumpy powder from clogging the conveying pipe 9.

[0032] The lower end of the bag breaker 8 body is provided with a "V" shaped collection hopper 18, and the bottom of the collection hopper 18 is provided with a discharge port 11, which is connected to the conveying pipe 9. The "V" shaped collection hopper 18 makes it easier to discharge and convey powder, avoids the accumulation of powder in the bag breaker 8, and ensures the efficiency of powder conveying.

[0033] Working principle:

[0034] Before powder conveying, bagged powder 7 is added to bag breaker 8. The feeding belt, through the cooperation of lifting cutter head 13 and rotating cutter head 14, performs bag breaking operation. The sealing cap 6 is sealed and fixed to the body of bag breaker 8. First, nitrogen purging is performed in the system. The first inflation control valve, the second inflation control valve, and the quick-opening valve 4 are opened to purge nitrogen into the reactor 3 and bag breaker 8 for nitrogen purging. After gas purging, the first inflation control valve and the second inflation control valve are closed, and the vacuum control valve is opened to evacuate the system. After evacuation in the reactor 3 and bag breaker 8, the vacuum control valve and the quick-opening valve 4 are closed. Powder is added by opening the second inflation controller valve to introduce nitrogen into the bag breaker 8 to maintain positive pressure inside. The second inflation control valve is closed, and the quick-opening valve 4 is opened. The powder in the bag breaker 8 is rapidly released under the pressure difference between the bag breaker 8 and the reactor 3 and is filled into the reactor 3. The quick-opening valve 4 is closed to end the feeding operation.

[0035] Since the volume of the bag breaker 8 is much smaller than that of the reactor 3, after the reactor 3 is evacuated once, the bag breaker 8 is sufficient to perform multiple powder feeding actions, thus achieving safe and accurate feeding of bagged powder 7.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent changes and modifications made in accordance with the scope of the claims of this utility model should fall within the technical scope of this utility model.

Claims

1. A safety charging device for explosive powders, characterized in that, It includes a reaction kettle (3), a bag breaker (8) and a conveying pipeline (9), both ends of the conveying pipeline (9) are connected with the feeding end of the reaction kettle (3) and the discharging end of the bag breaker (8) respectively, the conveying pipeline (9) is provided with a quick-opening valve (4), the reaction kettle (3) is connected with a vacuum extraction pipe (1) and a first gas charging pipe (2), and the bag breaker (8) is connected with a second gas charging pipe (5).

2. The explosive powder safe charging device according to claim 1, wherein The upper end of the bag breaker (8) is provided with a sealing cover (6).

3. The explosive powder charging apparatus according to claim 2, wherein The sealing cover (6) is provided with a telescopic air cylinder (10), and a lifting cutter head (13) is arranged on the piston rod of the telescopic air cylinder (10).

4. The explosive powder safe charging apparatus according to claim 1, wherein The bag breaker (8) is provided with a support frame (15), a rotating shaft (16) is rotatably installed on the support frame (15), the lower end of the support frame (15) is provided with a driving motor (12), the output end of the driving motor (12) is connected with the rotating shaft (16), and the rotating shaft (16) is provided with a rotary cutter head (14).

5. The explosive powder loading apparatus according to claim 4, wherein The bag breaker (8) is provided with a filter screen (17), and the filter screen (17) is arranged at the lower end of the support frame (15).

6. The apparatus according to claim 1, wherein The lower end of the bag breaker (8) is provided with a V-shaped collecting hopper (18), and a discharging port (11) is formed in the bottom of the collecting hopper (18).

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