CN220381038U - Dust supporting device for low ignition point dust explosion test - Google Patents
Dust supporting device for low ignition point dust explosion test Download PDFInfo
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- CN220381038U CN220381038U CN202321257349.4U CN202321257349U CN220381038U CN 220381038 U CN220381038 U CN 220381038U CN 202321257349 U CN202321257349 U CN 202321257349U CN 220381038 U CN220381038 U CN 220381038U
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- 239000000428 dust Substances 0.000 title claims abstract description 65
- 238000012360 testing method Methods 0.000 title claims abstract description 24
- 238000004880 explosion Methods 0.000 title claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 abstract description 13
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 8
- 238000005457 optimization Methods 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 4
- 230000003116 impacting effect Effects 0.000 description 3
- 210000003437 trachea Anatomy 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
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- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
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- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of dust testing devices, and particularly discloses a dust supporting device for low-ignition-point dust explosion testing. The utility model can uniformly throw and spread the low-ignition-point dust material, does not generate the friction combustion of the low-ignition-point dust material and the pipeline wall, effectively ensures the detection stability and improves the working efficiency.
Description
Technical Field
The utility model relates to the technical field of dust testing devices, in particular to a dust supporting device for testing low-ignition-point dust explosion.
Background
The combustible dust meets a heat source (open flame or high temperature) within the explosion limit range, flame instantaneously propagates in the whole mixed dust space, the chemical reaction speed is extremely high, and a large amount of heat is released simultaneously, so that high temperature and high pressure are formed, and the flame has strong destructiveness. Dust explosion has a wide range, and occurs in departments such as coal, chemical industry, medical processing, wood processing, grain processing and feed processing
The existing testing device adopts a pipeline to spray powder to simulate the dust diffusion environment, dust enters the cavity of the shell device through the pipeline by being carried by high-pressure airflow, so that low-ignition-point dust particles are directly burnt by friction with the pipeline wall before entering the cavity of the shell device under the carrying of the high-pressure airflow, and therefore, the problem that the low-ignition-point dust particles are inapplicable to the testing of some low-ignition-point dust exists.
Therefore, we propose a low ignition point dust explosion test dust holder to solve the above problems.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides a dust supporting device for testing low-ignition-point dust explosion.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the dust supporting device for the low-ignition-point dust explosion test comprises an annular cylinder, wherein an annular block is horizontally arranged on the upper side of the annular cylinder, the annular block is fixedly connected with the annular cylinder through two upright posts, a circular tray is arranged in the middle of the annular block, and the circular tray is detachably and fixedly connected with the annular block through a rope mechanism;
the inside of the annular cylinder slides up and down and is provided with an impact block, the bottom of the impact block is connected with a pushing block, the bottom of the annular cylinder is provided with an interface, and a plurality of air leakage ports are arranged around the side edge of the annular cylinder.
Preferably, a groove is formed in the middle of the round tray.
Preferably, the rope mechanism comprises a plurality of steel wire ropes, the plurality of steel wire ropes are uniformly arranged around the round tray and fixedly connected with the round tray, a plurality of sinking grooves are uniformly formed in the upper side of the annular block, fastening knobs are connected in the sinking grooves in a threaded manner, the plurality of steel wire ropes correspond to the plurality of sinking grooves respectively, and one ends of the steel wire ropes are fixedly extruded with the upper side of the annular block through the fastening knobs.
Preferably, the bottom of the impact block and the bottom of the pushing block are respectively provided with a cavity, the impact block is fixedly connected with the bottom of the impact block and the top of the pushing block through a cylinder, and the pushing block is matched with the inside of the annular cylinder in a sliding manner.
Preferably, the top of the impact block is fixedly matched with a rubber pad, two fixing blocks are fixed on the side edges of the impact block, and the two fixing blocks are in abutting matching with the upper side of the annular cylinder.
Preferably, the interface is funnel-shaped and coaxially corresponds to the bottom of the pushing block.
Preferably, the lower end of the impact block is positioned in the annular cylinder, and the side surface of the impact block positioned in the annular cylinder corresponds to the positions of the plurality of air leakage openings.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the annular cylinder and the annular block are arranged, the circular tray is arranged in the middle of the annular block, meanwhile, the impact block and the pushing block are arranged in the annular cylinder in a sliding way up and down manner, and the interface is arranged at the bottom of the annular cylinder, so that high-pressure gas can be introduced into the interface, the high-pressure gas can push the pushing block and the impact block, the effect of impacting the circular tray through the impact block is realized, the effect of upwards throwing and diffusing dust materials placed on the circular tray at the impact moment is realized, and the open space enables the placed dust materials with low ignition point not to be in friction combustion with the pipeline wall, so that the detection stability is effectively ensured.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort;
FIG. 1 is a schematic diagram of a dust carrier for testing low ignition point dust explosion according to the present utility model;
FIG. 2 is a front view of a low ignition point dust explosion test dust holder according to the present utility model;
FIG. 3 is a cross-sectional view of a low ignition point dust explosion test dust holder according to the present utility model;
fig. 4 is a schematic structural view of a fastening knob of a dust holder for testing low ignition point dust explosion according to the present utility model.
In the figure: 1. an annular cylinder; 2. an annular block; 3. a round tray; 4. an impact block; 5. pushing the block; 6. an interface; 7. an air vent; 8. a wire rope; 9. fastening a knob; 10. a cylinder; 11. a rubber pad; 12. and a fixed block.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "open," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like indicate orientation or positional relationships, merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
Referring to fig. 1-4, a dust supporting device for testing low ignition point dust explosion comprises an annular cylinder 1, wherein an annular block 2 is horizontally arranged on the upper side of the annular cylinder 1, the annular block 2 is fixedly connected with the annular cylinder 1 through two stand columns, a gap at one end exists between the annular cylinder 1 and the annular block 2 through the two stand columns, and a space between the two stand columns is convenient for cleaning operation between the annular cylinder 1 and the annular block 2. The middle part of the annular block 2 is provided with a circular tray 3, the circular tray 3 is detachably and fixedly connected with the annular block 2 through a rope mechanism, and the circular tray 3 is used for placing dust materials;
the inside slip from top to bottom of cyclic annular section of thick bamboo 1 is equipped with striking piece 4, and striking piece 4 is used for striking the round tray 3 of its upside, when placing the dust material on round tray 3, the instantaneous striking can upwards jack-up round tray 3, and then upwards throw out the dust material on the round tray 3 fast to open space makes the condition that the dust material of the low fire point of placing can not appear friction burning, has effectively ensured the stability of detection. The impact block 4 bottom is connected with the extrusion piece 5, and annular cylinder 1 bottom is equipped with interface 6, and interface 6 is used for being connected with the trachea of bottom, and trachea one end is used for being connected with high-pressure gas cylinder, and the trachea is in the back of letting in high-pressure gas in the twinkling of an eye, and high-pressure gas can be through interface 6 and jack-up extrusion piece 5 upwards, and impact block 4 is acted on to extrusion piece 5, can drive impact block 4 in the twinkling of an eye and upwards remove, realizes the effect of striking round tray 3. The side of the annular cylinder 1 is provided with a plurality of air leakage ports 7 in a surrounding mode, the air leakage ports 7 play a role in air leakage, and after the pushing block 5 ascends and moves and exceeds the air leakage ports 7, the air is discharged by the air leakage ports 7, so that pushing of the pushing block 5 is reduced, and the effect of limiting the movement of the pushing block 5 is achieved.
For the above example, it should be appreciated by those skilled in the art that the circular trays 3 implementing the above technical solution may also be provided with various size specifications of areas, and different sized circular trays 3 may be used to place different amounts of dust.
For the above example, it should be understood by those skilled in the art that the annular cylinder 1 implementing the above technical solution can be fixedly connected with an external device, and the external device is a protection cover or a protection shell for dust explosion test, and the annular cylinder 1 is fixedly disposed at the bottom of the protection cover or the protection shell.
As a technical optimization scheme of the utility model, the middle part of the round tray 3 is provided with the groove, and the groove of the round tray 3 is convenient for better placing dust materials.
As a technical optimization scheme of the utility model, the rope mechanism comprises a plurality of steel wire ropes 8, the steel wire ropes 8 are uniformly arranged around the round tray 3 and fixedly connected with the round tray 3, a plurality of sinking grooves are uniformly arranged on the upper side of the annular block 2, fastening knobs 9 are connected in the sinking grooves in a threaded manner, namely threaded holes matched with the fastening knobs 9 are formed on the upper side of the annular block 2. The steel wire ropes 8 correspond to the sinking grooves respectively, one end of each steel wire rope 8 is fixed by means of extrusion of the upper side of the corresponding annular block 2 through the corresponding fastening knob 9, namely, the steel wire ropes 8 are wound on the corresponding fastening knob 9, the corresponding fastening knob 9 is screwed into the corresponding threaded hole in a rotating mode, and the corresponding annular block 2 is matched with the corresponding rotating block at the upper end of the corresponding fastening knob 9 to clamp the corresponding steel wire ropes 8 in an extrusion mode. The height of the round tray 3 can be adjusted by adjusting the lengths of the steel wire ropes 8, and when the round tray 3 is jacked up by the impact block 4, the round tray 3 can be ensured to have a certain vertical movement distance while the round tray 3 is stabilized by the steel wire ropes 8.
For the above example, it should be appreciated by those skilled in the art that after the round pallet 3 implementing the above technical solution changes the size specification, the height of the round pallet 3 may also be adjusted by adjusting the lengths of the several wire ropes 8.
As a technical optimization scheme of the utility model, the bottoms of the impact block 4 and the pushing block 5 are respectively provided with a cavity, and the cavities effectively reduce the weight. The impact block 4 is fixedly connected with the bottom and the top of the pushing block 5 through a cylinder 10, and the pushing block 5 is matched with the inside of the annular cylinder 1 in a sliding manner.
As a technical optimization scheme of the utility model, the top of the impact block 4 is fixedly matched with a rubber pad 11, and the rubber pad 11 has the effects of reducing noise and buffering and protecting the round tray 3 when impacting the round tray 3. The side of the impact block 4 is fixed with two fixed blocks 12, the two fixed blocks 12 are matched with the upper side of the annular cylinder 1 in an abutting mode, and the two fixed blocks 12 are used for preventing the impact block 4 from sliding into the annular cylinder 1 and playing a role in limiting the impact block 4.
For the above example, it should be appreciated by those skilled in the art that the rubber pad 11 implementing the above technical solution may be replaced by a sponge pad or a silica gel pad, which also serves to reduce noise and buffer and protect the round tray 3.
As a technical optimization scheme of the utility model, the interface 6 is funnel-shaped and coaxially corresponds to the bottom of the pushing block 5, and the interface 6 can effectively guide gas to the bottom of the pushing block 5.
As a technical optimization scheme of the utility model, the lower end of the impact block 4 is positioned in the annular cylinder 1, the side surface of the impact block 4 positioned in the annular cylinder 1 corresponds to the positions of the plurality of air leakage ports 7, and the impact block 4 can seal the plurality of air leakage ports 7 under the limiting state.
In the utility model, the working principle of the device is as follows:
the round tray 3 is provided with dust materials, the dust materials with low ignition point can be placed, then an external protective cover or a protective shell is covered, the interface 6 is connected with an air pipe at the bottom, and one end of the air pipe is connected with a high-pressure air cylinder. Then the air pipe is instantly introduced with high-pressure air, the high-pressure air is used for jacking the pushing block 5 upwards through the interface 6, the pushing block 5 acts on the impact block 4, and the impact block 4 is instantly driven to move upwards, so that the effect of impacting the round tray 3 is realized. The striking in the twinkling of an eye of striking piece 4 can upwards jack-up round tray 3, and then makes the quick upward throwing of dust material on the round tray 3 go out, reaches the effect of throwing the diffusion to open space makes the dust material of the low ignition point of placing can not appear with the condition of pipeline wall friction burning, has effectively ensured the stability of detection.
Meanwhile, after the pushing block 5 ascends and moves and exceeds the plurality of air leakage ports 7, ascending air is discharged through the plurality of air leakage ports 7, pushing of the pushing block 5 is further reduced, the effect of limiting the movement of the pushing block 5 is achieved, meanwhile, air discharged from the plurality of air leakage ports 7 can enter a protective cover or a protective shell, and further scattered dust is evenly blown away, so that the dust explosion experiment is facilitated.
Meanwhile, the round tray 3 can be conveniently detached and cleaned or replaced.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (7)
1. The dust supporting device for the low-ignition-point dust explosion test comprises an annular cylinder (1) and is characterized in that an annular block (2) is horizontally arranged on the upper side of the annular cylinder (1), the annular block (2) is fixedly connected with the annular cylinder (1) through two upright posts, a circular tray (3) is arranged in the middle of the annular block (2), and the circular tray (3) is detachably and fixedly connected with the annular block (2) through a rope mechanism;
the inside of the annular cylinder (1) slides up and down and is provided with an impact block (4), the bottom of the impact block (4) is connected with a pushing block (5), the bottom of the annular cylinder (1) is provided with an interface (6), and a plurality of air leakage ports (7) are formed in the side edge of the annular cylinder (1) in a surrounding mode.
2. The dust collector for the low-ignition-point dust explosion test of claim 1, wherein a groove is formed in the middle of the round tray (3).
3. The dust explosion test dust holder with the low ignition point according to claim 1, wherein the rope mechanism comprises a plurality of steel wire ropes (8), the steel wire ropes (8) are uniformly arranged around the round tray (3) and fixedly connected with the round tray (3), a plurality of sinking grooves are uniformly formed in the upper side of the annular block (2), fastening knobs (9) are connected in the sinking grooves in a threaded mode, the steel wire ropes (8) respectively correspond to the sinking grooves, and one ends of the steel wire ropes (8) are fixedly extruded to the upper side of the annular block (2) through the fastening knobs (9).
4. The dust collector for the low-ignition-point dust explosion test of claim 1, wherein cavities are formed in the bottoms of the impact block (4) and the pushing block (5), the impact block (4) is fixedly connected with the bottom of the impact block and the top of the pushing block (5) through a cylinder (10), and the pushing block (5) is matched with the inside of the annular cylinder (1) in a sliding mode.
5. The dust collector for the low-ignition-point dust explosion test of claim 1, wherein a rubber pad (11) is fixedly matched with the top of the impact block (4), two fixing blocks (12) are fixedly arranged on the side edges of the impact block (4), and the two fixing blocks (12) are in abutting matching with the upper side of the annular cylinder (1).
6. The low ignition point dust explosion test dust holder according to claim 1, wherein the interface (6) is funnel-shaped and coaxially corresponds to the bottom of the pushing block (5).
7. The dust collector for the low-ignition-point dust explosion test of claim 1, wherein the lower end of the impact block (4) is positioned inside the annular cylinder (1), and the side surface of the impact block (4) positioned inside the annular cylinder (1) corresponds to the positions of the plurality of air leakage ports (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321257349.4U CN220381038U (en) | 2023-05-23 | 2023-05-23 | Dust supporting device for low ignition point dust explosion test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321257349.4U CN220381038U (en) | 2023-05-23 | 2023-05-23 | Dust supporting device for low ignition point dust explosion test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220381038U true CN220381038U (en) | 2024-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321257349.4U Active CN220381038U (en) | 2023-05-23 | 2023-05-23 | Dust supporting device for low ignition point dust explosion test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220381038U (en) |
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- 2023-05-23 CN CN202321257349.4U patent/CN220381038U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 232000, Building A, Science and Technology Innovation Center, Zhenxing Road, Economic and Technological Development Zone, Huainan City, Anhui Province, 1805 Patentee after: Anhui Hanggao Safety Equipment Co.,Ltd. Country or region after: China Address before: Room 615, Shangcheng International, No. 168 Guoqing Middle Road, Tianjia'an District, Huainan City, Anhui Province, 232000 Patentee before: Anhui Hanggao Safety Equipment Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |