Dust explosion simulation experiment table

Abstract

The utility model discloses a dust explosion simulation experiment table which comprises a base, the top of the base is fixedly connected with a cylinder body, and the top of the cylinder body is provided with a main cover; a fan is installed at the bottom of the barrel, an air outlet of the fan is located in the inner wall of the bottom of the barrel, a first air inlet pipe is embedded in the center of the top of the main cover, a rotating pipe connector is installed at one end of the bottom of the first air inlet pipe, and the bottom of the rotating pipe connector communicates with an L-shaped pipe; the first air inlet pipe conveys air through external air conveying equipment, the air enters the barrel through the first air inlet pipe, the L-shaped pipe, the scraper blade and the spray head and is sprayed out towards the inner wall of the barrel to push the L-shaped pipe to rotate, and residual dust can be conveniently cleaned by the brush; and meanwhile, residual dust in the barrel and on the inner wall of the barrel is cleaned through gas continuously sprayed out of the spray head, and separation of the dust from the inner wall of the barrel is further accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of dust simulation experiments, in particular to a dust explosion simulation experiment table. Background Art

[0002] The dust explosion simulation test bench is used to simulate dust explosion scenarios and dust accumulation in a closed space in order to simulate and test explosions and evaluate explosion-proof measures and safety performance. The dust explosion simulation test bench is usually used in the industrial field, especially in industries where dust is flammable and explosive, such as powder metallurgy, chemical industry, food processing, etc.

[0003] However, after the common dust explosion simulation experiment is carried out, dust will remain in the space of the closed container. The dust will cover the inner wall of the container, making it difficult to clean. In severe cases, residual dust will accumulate, affecting the normal operation and production efficiency of the equipment. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art.

[0005] To this end, one purpose of the utility model is to propose a dust explosion simulation test bench, which transports gas into the cylinder through external gas transmission equipment, uses gas to clean the inner wall and residual dust, promotes the rotation of the L-shaped tube, and drives the brush to accelerate the separation of dust from the inner wall of the cylinder.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dust explosion simulation test bench, comprising a base, the top of the base is fixedly connected with a cylinder, the top of the cylinder is provided with a main cover; a fan is installed at the bottom of the cylinder, the air outlet of the fan is located on the bottom inner wall of the cylinder, a first air inlet pipe is embedded in the top center of the main cover, a rotating pipe joint is installed at one end of the bottom of the first air inlet pipe, the bottom of the rotating pipe joint is connected with an L-shaped pipe, the end of the L-shaped pipe away from the rotating pipe joint is connected with a scraper, the interior of the scraper is hollow, a brush is installed on the side of the scraper close to the inner wall of the cylinder, a plurality of nozzles arranged equidistantly are installed on the outer wall of the scraper from top to bottom, and a sub-cover is threadedly connected to the top of the main cover.

[0007] Preferably, an electronic igniter is installed on the inner wall of the bottom of the cylinder.

[0008] Preferably, a key switch for controlling the operating state of the electronic igniter is installed on the base, and an adjusting knob for controlling the operating power of the fan is installed on the base.

[0009] Preferably, four buckles are symmetrically distributed on the top of the main cover, the female buckle of the buckle is fixedly connected to the top of the main cover, and the sub-buckle of the buckle is fixedly connected to the outer wall of the cylinder.

[0010] Preferably, a sealing block is fixedly connected to the outer wall of the first air inlet pipe, and the bottom of the sealing block is fixedly connected to the top of the main cover.

[0011] Preferably, a sealing ring is fixedly connected to the bottom of the main cover.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the first air inlet pipe in the utility model transports gas through an external gas transmission device, the gas enters the cylinder through the first air inlet pipe, the L-shaped pipe, the scraper and the nozzle, and is sprayed toward the inner wall of the cylinder, pushing the L-shaped pipe to rotate, making it convenient for the brush to clean the residual dust, and at the same time, the gas continuously sprayed from the nozzle is used to clean the residual dust inside the cylinder and on the inner wall, further accelerating the separation of dust from the inner wall of the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of a dust explosion simulation test bench according to an embodiment of the utility model;

[0014] Figure 2 It is a schematic cross-sectional structure diagram of a dust explosion simulation test bench according to an embodiment of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of a scraper in a dust explosion simulation test bench according to an embodiment of the utility model;

[0016] Figure 4 This is a schematic structural diagram from another perspective of the scraper in the dust explosion simulation test bench according to an embodiment of the utility model.

[0017] In the figure: 1. base; 2. cylinder; 3. cylinder cover; 4. first air inlet pipe; 5. buckle; 6. sealing block; 7. key switch; 8. adjustment knob; 9. fan; 10. igniter; 11. L-shaped tube; 12. scraper; 13. brush; 14. rotating pipe joint; 15. nozzle; 16. sealing ring; 17. auxiliary cover. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1 An embodiment of the utility model provides a dust explosion simulation test bench, comprising: a base 1 and a cylinder 2.

[0020] Among them, Figure 1 and Figure 2 As shown, the top of the base 1 is fixedly connected to the cylinder 2, and the top of the cylinder 2 is provided with a main cover 3; a fan 9 is installed at the bottom of the cylinder 2, and the air outlet of the fan 9 is located at the bottom inner wall of the cylinder 2. A first air inlet pipe 4 is embedded in the top center of the main cover 3. When the first air inlet pipe 4 is in use, one end thereof can be connected to an external gas transmission equipment. When the external gas transmission equipment inputs gas, the gas can pass through the first air inlet pipe 4.

[0021] Furthermore, an electronic igniter 10 is installed on the bottom inner wall of the cylinder 2. When performing a dust explosion simulation, dust is put into the cylinder 2 in advance, and the fan 9 is used to blow the dust to diffuse and suspend it in the cylinder 2. The electronic igniter 10 is used to provide an ignition operation, so that the dust inside the cylinder 2 deflagrates to simulate the dust explosion phenomenon.

[0022] Among them, Figure 1-Figure 4 As shown, a rotating pipe joint 14 is installed at one end of the bottom of the first air inlet pipe 4, and the bottom of the rotating pipe joint 14 is connected to an L-shaped pipe 11. The end of the L-shaped pipe 11 away from the rotating pipe joint 14 is connected to a scraper 12. The interior of the scraper 12 is hollow, and a brush 13 is installed on the side of the scraper 12 close to the inner wall of the cylinder 2. A plurality of nozzles 15 are installed on the outer wall of the scraper 12 at equal distances from top to bottom, and a sub-cover 17 is threadedly connected to the top of the main cover 3.

[0023] When in use, external gas transmission equipment inputs gas into the first air inlet pipe 4, and the gas is ejected toward the inner wall of the cylinder 2 through the L-shaped tube 11, the scraper 12 and the nozzle 15, pushing the L-shaped tube 11 to rotate at the bottom of the rotating pipe joint 14, so that the brush 13 can clean the residual dust covering the inner wall of the cylinder 2. At the same time, the gas continuously ejected from the nozzle 15 can be used to clean the residual dust inside and on the inner wall of the cylinder 2.

[0024] It should be noted that, refer to Figure 1 A key switch 7 for controlling the operating state of the electronic igniter 10 is installed on the base 1, and an adjusting knob 8 for controlling the operating power of the fan 9 is installed on the base 1.

[0025] like Figure 1 and Figure 2 As shown, the top of the main cover 3 is provided with four buckles 5 distributed symmetrically in a circle, the female buckle of the buckle 5 is fixedly connected to the top of the main cover 3, and the sub-buckle of the buckle 5 is fixedly connected to the outer wall of the cylinder 2. After the main cover 3 is buckled on the top of the cylinder 2, the sub-buckle of the buckle 5 can be locked on the female buckle to complete the fixation between the main cover 3 and the cylinder 2.

[0026] like Figure 1-Figure 3 As shown, the outer wall of the first air inlet pipe 4 is fixedly connected with a sealing block 6, the bottom of the sealing block 6 is fixedly connected to the top of the main cover 3, and the bottom of the main cover 3 is fixedly connected with a sealing ring 16. The sealing block 6 can improve the sealing of the connecting gap between the first air inlet pipe 4 and the main cover 3, and the sealing ring 16 can improve the sealing of the connecting gap between the main cover 3 and the cylinder 2.

[0027] According to the above technical scheme, the working steps of this scheme are summarized and sorted out: when the utility model is used, one end of the first air inlet pipe 4 on the top of the main cover 3 can be connected to the external gas transmission equipment, and the other end of the first air inlet pipe 4 is connected to the L-shaped tube 11 through the rotating pipe joint 14, and the scraper 12 at one end of the L-shaped tube 11 is attached to the inner wall of the cylinder 2.

[0028] When the external gas transmission equipment inputs gas, the gas can be sprayed toward the inner wall of the cylinder 2 through the first air inlet pipe 4, the L-shaped tube 11, the scraper 12 and the nozzle 15, pushing the L-shaped tube 11 to rotate at the bottom of the rotating pipe joint 14, making it convenient for the brush 13 to clean the residual dust covering the inner wall of the cylinder 2. At the same time, the gas continuously sprayed from the nozzle 15 is used to clean the residual dust inside and on the inner wall of the cylinder 2, further accelerating the separation of the dust from the inner wall of the cylinder 2.

[0029] Furthermore, by opening the sub-cover 17 , the remaining dust that is scraped or blown off can be discharged to the outside through the opening of the sub-cover 17 .

[0030] Parts not involved in the present invention are the same as the prior art or can be implemented by the prior art. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A dust explosion simulation test bench, comprising a base (1), a cylinder (2) fixedly connected to the top of the base (1), a main cover (3) provided on the top of the cylinder (2), characterized in that: A fan (9) is installed at the bottom of the cylinder (2), and the air outlet of the fan (9) is located on the bottom inner wall of the cylinder (2). A first air inlet pipe (4) is embedded at the center of the top of the main cover (3). A rotating pipe joint (14) is installed at one end of the bottom of the first air inlet pipe (4). The bottom of the rotating pipe joint (14) is connected to an L-shaped pipe (11). The end of the L-shaped pipe (11) away from the rotating pipe joint (14) is connected to a scraper (12). The interior of the scraper (12) is hollow. A brush (13) is installed on the side of the scraper (12) close to the inner wall of the cylinder (2). A plurality of nozzles (15) arranged equidistantly are installed on the outer wall of the scraper (12) from top to bottom. The top of the main cover (3) is threadedly connected to a secondary cover (17).

2. A dust explosion simulation test bench according to claim 1, characterized in that: An electronic igniter (10) is installed on the inner wall of the bottom of the cylinder (2).

3. A dust explosion simulation test bench according to claim 2, characterized in that: The base (1) is provided with a key switch (7) for controlling the operating state of the electronic igniter (10), and the base (1) is provided with an adjusting knob (8) for controlling the operating power of the fan (9).

4. A dust explosion simulation test bench according to claim 1, characterized in that: The top of the main cover (3) is provided with four buckles (5) symmetrically distributed in a circumferential manner, the female buckle of the buckle (5) is fixedly connected to the top of the main cover (3), and the sub-buckle of the buckle (5) is fixedly connected to the outer wall of the cylinder (2).

5. The dust explosion simulation test bench according to claim 1, characterized in that: A sealing block (6) is fixedly connected to the outer wall of the first air inlet pipe (4), and the bottom of the sealing block (6) is fixedly connected to the top of the main cover (3).

6. The dust explosion simulation test bench according to claim 1, characterized in that: A sealing ring (16) is fixedly connected to the bottom of the main cover (3).

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