Powdered emulsion explosive density modifier delivery system

Abstract

The utility model discloses a kind of density regulator conveying systems of powdery emulsion explosive, including storage bin, upper lead type powder conveying pump is equipped in the lower portion of storage bin, configuration is conveyed to buffer bin by one conveying pipeline, flange is installed in the lower portion of buffer bin, and pneumatic unloading valve is docked feeding screw hopper inlet, buffer bin is equipped with material gas separator.The utility model uses upper lead type jet conveying pump system, uses fluidization technology and pneumatic pressure difference principle to reach material conveying purpose, when material enters pump body material full, close conveying pump inlet, after gasification makes material form fluidization, with suspended state enters pipeline and is conveyed to buffer bin, gas is filtered after material gas separator and is discharged into atmosphere, powder falls into receiving bin under the action of gravity, subsequent by pneumatic unloading valve enters feeding screw hopper, material gas separation, that is, reach conveying purpose.

Description

Technical Field

[0001] This utility model belongs to the field of explosives, and specifically relates to a powdered emulsion explosive density regulator delivery system. Background Technology

[0002] Talc powder is a powdered additive used in powdered emulsion explosives, accounting for 8-20% of the finished product. Talc powder manufacturers use 50kg bags, which are transported to the company by truck. The bags are then manually unloaded and moved to the warehouse for temporary storage. During production, forklifts are used to move the bagged talc powder to the outside of the powder-making workshop, and then manual forklifts are used to transport it to the feeding room. The bags are then opened and added to the hopper, where a screw conveyor delivers it quantitatively to the process equipment for mixing and addition. Feeding occurs approximately every 30 minutes, with each feeding process taking about 10 minutes.

[0003] The density regulator is currently added manually in small batches. The main problems are as follows: (1) Due to the large amount of talc powder added per shift, there are many batches added per shift. (2) One person is required to operate the equipment online during the production process, and the labor intensity is high, which is not conducive to the control of the production line personnel. (3) Frequent material additions result in a lot of dust on site, which is not conducive to site improvement. Utility Model Content

[0004] The present invention provides a powdered emulsion explosive density regulator delivery system, which can solve one of the problems in the background art.

[0005] To achieve the above-mentioned objectives, this utility model adopts the following technical solution:

[0006] A powdered emulsion explosive density regulator conveying system includes a storage silo, an upward-drawing powder conveying pump located below the storage silo, and a conveying pipeline that conveys the powder to a buffer silo. A pneumatic unloading valve is installed on the lower flange of the buffer silo to connect to the feed inlet of the feeding screw hopper.

[0007] Further technology of this utility model:

[0008] Preferably, the buffer chamber is equipped with a material-gas separator.

[0009] Preferably, the upward-drawing powder conveying pump includes a pump body, with a conveying pump inlet and an exhaust port at the upper end of the pump body. The conveying pump inlet is connected to the discharge port below the storage silo. The lower end of the pump body is connected to a compressed air pipeline, which is connected to an external air source. A conveying pipeline is provided on the side wall of the pump body, and a discharge valve is provided on the conveying pipeline. One end of the conveying pipeline extends into the bottom of the pump body, and the other end is connected to the buffer silo.

[0010] Preferably, the delivery pipeline is further provided with a blowing port, and the blowing port is provided with a blowing valve.

[0011] The beneficial effects of this utility model are:

[0012] This utility model adopts an upward jet conveying pump system, which uses fluidization technology and pneumatic pressure difference principle to achieve the purpose of material conveying. When the material enters the pump body and is full, the conveying pump inlet is closed. After gasification, the material is fluidized and then enters the pipeline in a suspended state to be conveyed to the buffer bin. The gas is filtered by the material-gas separator and discharged into the atmosphere. The powder falls into the receiving bin under the action of gravity, and then enters the feeding screw hopper through the pneumatic discharge valve. Material-gas separation is achieved, thus achieving the purpose of conveying. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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 a powdered emulsion explosive density regulator delivery system according to the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of the upward-drawing powder conveying pump of this utility model;

[0016] Figure 3 This is a schematic diagram of the working process of the upward-drawing powder conveying pump of this utility model;

[0017] The components include: 1. Storage silo; 2. Upward-drawing powder conveying pump; 21. Pump body; 22. Conveying pump inlet; 23. Exhaust port; 24. Compressed air pipeline; 25. Conveying pipeline; 26. Discharge valve; 27. Auxiliary blowing port; 3. Buffer silo; 31. Pneumatic unloading valve; 32. Bag filter; 4. External air source. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] This invention provides a powdered emulsion explosive density regulator conveying system. A storage silo is constructed at a suitable location outside the production workshop. The talc powder manufacturer transports talc powder to the storage silo using tanker trucks, which then use their own power to convey the powder into the silo. A pneumatic conveying system automatically delivers the talc powder to a buffer hopper inside the workshop via the silo's discharge port. The control system is connected to a control room for monitoring and operation, enabling unmanned continuous talc powder feeding.

[0020] Specifically, such as Figure 1 It includes a storage silo 1, with an upward-drawing powder conveying pump 2 below the storage silo 1, and a conveying pipeline to convey to the buffer silo 3. The lower flange of the buffer silo 3 is equipped with a pneumatic unloading valve 31 to connect to the feed screw hopper inlet.

[0021] The buffer chamber 3 is equipped with a material-gas separator. In this embodiment, the buffer chamber 3 preferably contains a bag filter 32. The interface between the conveying pipe and the buffer chamber 3 is located below the bag filter 32, and the exhaust port 23 of the buffer chamber 3 is located above the bag filter 32.

[0022] like Figure 2 The upward-drawing powder conveying pump 2 includes a pump body 21. The upper end of the pump body 21 is provided with a pump inlet 22 and an exhaust port 23. Both the pump inlet 22 and the exhaust port 23 are equipped with valve control switches. The pump inlet 22 connects to the discharge port below the storage silo 1. The lower end of the pump body 21 is connected to a compressed air pipeline 24, which is connected to an external air source 4. A conveying pipeline 25 is provided on the side wall of the pump body 21. A discharge valve 26 is provided on the conveying pipeline 25. One end of the conveying pipeline 25 extends into the bottom of the pump body 21, and the other end connects to the buffer silo 3. An auxiliary blowing port 27 is also provided on the conveying pipeline 25, and an auxiliary blowing valve is provided on the auxiliary blowing port 27.

[0023] like Figure 3 When the top-feed powder conveying pump 2 is running, the pump inlet 22 and exhaust port 23 are first opened. Powder enters the pump body 21 through the pump inlet 22, and air inside the pump overflows through the exhaust port 23. When the level gauge detects that the hopper is full, the pump inlet 22 and exhaust port 23 are closed. When the conveying pressure value is met (a pressure gauge is installed on the pump body 21), the external air source 4 is turned on, and compressed air enters the pump body 21 through the compressed air pipeline 24. After the pressure inside the pump rises to the set value, the discharge valve 26 and the auxiliary blowing valve are opened. The powder enters the conveying pipeline at high speed under the action of pressure difference. During the conveying process, when the pressure at the top of the pump drops to a certain value, it indicates that the powder inside the pump has been conveyed. After blowing air through the auxiliary blowing port 27 to clean the pipeline, the external air source 4 and the auxiliary blowing valve are closed. This completes one conveying cycle and begins the next cycle. Air is filtered by the top air separator of buffer bin 3 and then discharged into the atmosphere. Powder falls into the receiving bin under gravity, completing the powder conveying process.

[0024] Process:

[0025] A storage silo 1 is built at a suitable location outside the production workshop. The talc powder manufacturer uses a tanker truck to transport the talc powder to the side of the storage silo 1. The leakage pipe of the tanker truck is connected to the inlet pipe of the storage silo 1, and the talc powder is transported to the storage silo 1 by the truck's own power.

[0026] An upward-drawing powder conveying pump 2 is installed below the storage silo 1, and a conveying pipeline is configured to transport the powder to the buffer silo 3.

[0027] When the material level in buffer silo 3 reaches a low point during system operation, the conveying pump delivers a can of material to buffer silo 3 to replenish the material, ensuring a continuous supply of material from buffer silo 3 to the feeding screw hopper. The screw hopper then conveys the material to the production line in a set quantity to fully mix with the powder, thus realizing the talc powder addition operation.

[0028] The talc powder feeding system upgrade mainly involves replacing the existing manual addition of talc powder to the silo with equipment that replaces manual operation, thereby reducing the on-site staff by one person and enabling personnel to be relocated to the back office.

[0029] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A powdered emulsion explosive density modifier delivery system, characterized in that, It includes a storage silo, below which is an upward-drawing powder conveying pump, and a conveying pipeline to convey the powder to a buffer silo. The lower flange of the buffer silo is equipped with a pneumatic unloading valve that connects to the feed screw hopper inlet.

2. The powdered emulsion explosive density modifier delivery system according to claim 1, characterized in that, The buffer chamber is equipped with a material-gas separator.

3. The powdered emulsion explosive density modifier delivery system according to claim 1, characterized in that, The upward-drawing powder conveying pump includes a pump body, with a conveying pump inlet and an exhaust port at the upper end of the pump body. The conveying pump inlet is connected to the discharge port below the storage silo. The lower end of the pump body is connected to a compressed air pipeline, which is connected to an external air source. A conveying pipeline is provided on the side wall of the pump body, and a discharge valve is provided on the conveying pipeline. One end of the conveying pipeline extends into the bottom of the pump body, and the other end is connected to the buffer silo.

4. A powdered emulsion explosive density modifier delivery system according to claim 3, characterized in that, The delivery pipeline is also equipped with a blow-aid port, and the blow-aid port is equipped with a blow-aid valve.

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