Wet material size grading device special for explosives and powders

Abstract

The utility model discloses a special wet material size grading device for propellants and explosives, solves the problem that dry materials need to be screened by division of labor in continuous production of the propellants and explosives, reduces manual operation and risks, and belongs to the technical field of material screening devices. The device comprises a reaction kettle, the reaction kettle conveys materials to one end of a screen mesh through a conveying pipeline, a diaphragm pump is installed on the conveying pipeline, a water pipe is arranged above the screen mesh, a plurality of water outlet holes are formed in a pipe body of the water pipe, the water pipe is connected with a high-level water tank, a scraper is arranged on the upper side of the screen mesh, and the scraper is arranged on the lower side of the screen mesh. The scraping plate is arranged in a rail arranged in the length direction of the screen, and a suction filtration barrel is arranged at the other end of the screen.

Description

Technical Field

[0001] This utility model belongs to the technical field of material screening devices, and specifically relates to a wet material particle size classification device for explosives. Background Technology

[0002] In the production of a certain explosive, material screening requires up to 5 hours of work, which involves personnel being exposed to hazardous materials for a long time, posing a significant risk. This utility model solves the problem of needing to divide the work for dry material screening in the continuous production of explosives, reducing manual operation and lowering risks. Utility Model Content

[0003] The purpose of this invention is to provide a wet material particle size classification device for explosives, which solves the technical problem of needing to divide labor for dry material screening in the continuous production of explosives, reduces manual operation and lowers risks.

[0004] This utility model is achieved using the following technical solution:

[0005] A wet particle size classification device for explosives includes a reaction vessel. The reaction vessel transports material to one end of a screen via a transport pipeline. A diaphragm pump is installed on the transport pipeline. A water pipe is installed above the screen, and the water pipe has several water outlet holes. The water pipe is connected to a high-level water tank. A scraper is installed on the upper side of the screen and is set in a track along the length of the screen. The scraper can move along the length of the screen. A filter bucket is installed at the other end of the screen.

[0006] In application, the materials are mixed in the reactor and pumped onto the screen through a diaphragm pump. Water is added to the screen through a water pipe to screen the materials. The scraper moves along the track to scrape the material above the screen into the suction filter bucket for filtration, thereby obtaining a product with a suitable particle size.

[0007] Further preferably, it also includes a protective cover, with the water pipe laid on top of the protective cover. The protective cover can cover the screen, scraper and track to prevent water in the water pipe and material in the transport pipeline from splashing to other places, and can maximize the guarantee that the material hits the screen.

[0008] More preferably, the screen has multiple layers, with the screen aperture decreasing from top to bottom. The transport pipe delivers the material to the screen with the largest aperture. The water pipe is located above the screen with the largest aperture. Each layer of screen is equipped with a corresponding scraper and a suction filter. By setting multiple layers of screens with different apertures, the product can be classified into different particle sizes in one go.

[0009] In a further preferred embodiment, a conveyor belt is installed between each screen and the filter barrel. When the filter barrel is located far away, a conveyor belt can be installed between the screen and the filter barrel to transport the material on the screen to the filter barrel for filtration.

[0010] More preferably, each conveyor belt is equipped with its own material collection device. Since the conveyor belt transports wet materials, there may be material adhering to the conveyor belt. A material collection device can be set under the conveyor belt. After the operation of a wet material particle size classification device for explosives is completed, the material in the material collection device is poured into the corresponding suction filter bucket.

[0011] Further preferably, it also includes a protective cover, with the water pipe laid on top of the protective cover. The protective cover can cover the screen, scraper and track. The end of the conveyor belt near the screen is located inside the protective cover, and the end near the filter barrel is outside the protective cover. The filter barrel is located outside the protective cover.

[0012] In a further preferred embodiment, a wastewater recycling device is provided at the bottom of the screen. After treatment, the wastewater is discharged into a high-level water tank, thus realizing the recycling of water.

[0013] Preferably, the water pipe is equipped with a regulating valve, which can adjust the pressure inside the water pipe, thereby changing the water flow rate from the outlet. Since the material injected into the protective cover of the reactor is a suspension, adding water to the suspension may cause clumping, making it difficult to pass through the screen and hindering particle classification. Increasing the pressure inside the water pipe increases the water flow rate from the outlet, and the water jet in the outlet can break up the clumping on the screen, which is beneficial for more thorough particle classification.

[0014] In a further preferred embodiment, the scraper is controlled to move by a pneumatic valve. By setting the pneumatic valve, the scraper can be controlled to move on the track, thereby achieving the function of scraping away the material on the screen.

[0015] Further preferably, it also includes an industrial control computer, which controls the opening and closing of the regulating valve, pneumatic valve and conveyor belt. The industrial control computer can realize the automatic operation of the regulating valve, pneumatic valve and conveyor belt, thereby realizing the automatic operation of a wet material particle size classification device for explosives.

[0016] The present invention has a reasonable and reliable structural design, and has the advantages of simple structure, convenient processing and low cost. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] In the diagram: 1-Reaction vessel, 2-Pneumatic diaphragm pump, 3-Protective cover, 4-Regulating valve, 5-Water pipe, 6-Screen, 7-Explosion-proof scraper, 8-Pneumatic valve, 9-Conveyor belt, 10-Filter barrel, 11-Industrial control computer. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the solution of this utility model will be further described below. It should be noted that, unless otherwise specified, the embodiments and features of this utility model can be combined with each other.

[0022] In this description, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. It should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the present invention, and not all embodiments.

[0024] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0025] A wet material particle size classification device for explosives includes a reaction vessel 1. The reaction vessel 1 transports materials to one end of a screen 6 through a transport pipeline. A diaphragm pump is installed on the transport pipeline. A water pipe 5 is installed above the screen 6. The water pipe 5 has several water outlet holes and is connected to a high-level water tank. A scraper is installed on the upper side of the screen 6 and is set in a track along the length of the screen 6. A filter bucket 10 is installed at the other end of the screen 6.

[0026] In Example 1, the screen 6 has multiple layers, and the aperture of the screen 6 decreases from top to bottom. The transport pipe transports the material to the screen 6 with the largest aperture. The water pipe 5 is set above the screen 6 with the largest aperture. Each layer of screen 6 is equipped with a corresponding scraper and a suction filter 10. A conveyor belt 9 is set between each screen 6 and the suction filter 10. Each conveyor belt 9 is equipped with its own material collection device below it.

[0027] In this embodiment, the scraper is an explosion-proof scraper 7, and the conveyor belt on the conveyor belt machine 9 is an anti-static conveyor belt.

[0028] During application, the explosion-proof scraper 7 on the screen 6 scrapes the material on the screen 6 onto the anti-static conveyor belt, and the conveyor belt 9 transports the material into the filter barrel 10.

[0029] Example 2 also includes a protective cover 3, with water pipe 5 laid on top of the protective cover 3. The protective cover 3 can cover the screen 6, scraper and track. The end of the conveyor belt 9 near the screen 6 is set inside the protective cover 3, and the end near the filter barrel 10 is outside the protective cover 3. The filter barrel 10 is set outside the protective cover 3.

[0030] A wastewater recycling device is installed at the bottom of the screen 6. After the wastewater is treated, it is discharged into a high-level water tank.

[0031] In this embodiment, the diaphragm pump is a pneumatic diaphragm pump 2, and the protective cover 3 is a screening drum.

[0032] In application, the material in the reactor 1 is pumped into the screening drum by the pneumatic diaphragm pump 2. The screening drum is equipped with multiple layers of screens 6 with different apertures. The apertures of the multiple layers of screens 6 decrease from top to bottom. The material is directly hit on the top layer of screens 6 and then passes through multiple layers of screens 6 to achieve particle size classification.

[0033] In Example 3, the water pipe 5 is equipped with a regulating valve 4, and the scraper is controlled to move by a pneumatic valve 8. It also includes an industrial control computer 11, which controls the opening and closing of the regulating valve 4, the pneumatic valve 8, and the conveyor belt 9.

[0034] In application, the water pipe 5 is switched on and off and the pressure inside the pipe is adjusted by the regulating valve 4 controlled by the industrial control computer 11; the scraper is moved by the pneumatic valve 8 controlled by the industrial control computer 11 to achieve automatic operation.

[0035] The working principle is as follows:

[0036] The materials are mixed in the reactor 1 and pumped into the screening drum by the pneumatic diaphragm pump 2. The industrial control computer 11 controls the opening of the automatic regulating valve 4, and water is added to the screens 6 with different apertures through the water pipe 5 for screening. The industrial control computer 11 controls the opening of the pneumatic valve 8, and the pneumatic valve 8 controls the explosion-proof scraper 7 to scrape the material above the screen 6 onto the anti-static conveyor belt, which is then conveyed by the conveyor belt 9 to the suction filter barrel 10 for filtration, thereby obtaining products of different particle sizes.

[0037] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Although detailed descriptions have been provided with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments, and all should be covered by the protection scope of the claims.

Claims

1. A wet particle size classification device for explosives, characterized in that: The system includes a reactor (1), which transports materials to one end of a screen (6) via a transport pipeline. A diaphragm pump is installed on the transport pipeline. A water pipe (5) is installed above the screen (6). Several water outlet holes are provided on the body of the water pipe (5). The water pipe (5) is connected to a high-level water tank. A scraper is provided on the upper side of the screen (6). The scraper is set in a track set along the length of the screen (6). A filter bucket (10) is provided at the other end of the screen (6).

2. The wet particle size classification device for explosives according to claim 1, characterized in that: It also includes a protective cover (3), the water pipe (5) is laid on top of the protective cover (3), the protective cover (3) can cover the screen (6), scraper and track.

3. The wet particle size classification device for explosives according to claim 1, characterized in that: The screen (6) has multiple layers, and the aperture of the screen (6) decreases from top to bottom. The transport pipe transports the material to the screen (6) with the largest aperture. The water pipe (5) is set above the screen (6) with the largest aperture. Each layer of screen (6) is equipped with a corresponding scraper and a filter barrel (10).

4. The wet particle size classification device for explosives according to claim 3, characterized in that: A conveyor belt (9) is provided between each screen (6) and the filter barrel (10).

5. The wet particle size classification device for explosives according to claim 4, characterized in that: Each conveyor belt (9) has its own material collection device underneath.

6. The wet particle size classification device for explosives according to claim 5, characterized in that: It also includes a protective cover (3), the water pipe (5) is laid on the top of the protective cover (3), the protective cover (3) can cover the screen (6), scraper and track, the conveyor belt (9) is located inside the protective cover (3) at one end near the screen (6), and the end near the filter barrel (10) is outside the protective cover (3), the filter barrel (10) is located outside the protective cover (3).

7. A wet particle size classification device for explosives according to any one of claims 1-6, characterized in that: The bottom of the screen (6) is equipped with a wastewater recycling device, which processes the wastewater and discharges it into a high-level water tank.

8. A wet particle size classification device for explosives according to any one of claims 1-6, characterized in that: The water pipe (5) is equipped with a regulating valve (4).

9. A wet particle size classification device for explosives according to claim 8, characterized in that: The scraper is controlled to move by a pneumatic valve (8).

10. A wet particle size classification device for explosives according to claim 9, characterized in that: It also includes an industrial computer (11), which controls the opening and closing of the regulating valve (4), the pneumatic valve (8) and the conveyor belt (9).

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