CN202285007U - Device for testing explosiveness of blast furnace injection coal - Google Patents
Device for testing explosiveness of blast furnace injection coal Download PDFInfo
- Publication number
- CN202285007U CN202285007U CN201120372317XU CN201120372317U CN202285007U CN 202285007 U CN202285007 U CN 202285007U CN 201120372317X U CN201120372317X U CN 201120372317XU CN 201120372317 U CN201120372317 U CN 201120372317U CN 202285007 U CN202285007 U CN 202285007U
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- temperature resistant
- glass tube
- resistant glass
- pulverized coal
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Abstract
The utility model discloses a device for testing the explosiveness of blast furnace injection coals, and solves the problem in the existing device that fast testing can not be performed on site. The device comprises an electrically controlled device (11), and a heating platinum winding (5) is arranged in a high-temperature resistant glass tube (2); the tube bottom of the high-temperature resistant glass tube (2) is communicated with a dust filtering box (3); a dust removal blower (4) is arranged on the dust filtering box (3); a pulverized coal charge pipe (10) is arranged on the high-temperature resistant glass tube (2) on the side with a tube port; the pulverized coal charge pipe (10) is communicated with a high pressure container (13) through a pulverized coal injection electromagnetic valve (9); the high pressure container (13) is communicated with an air compressor (6) through a compressed-air electromagnetic valve (7); the heating platinum winding (5), the dust removal blower (4), the air compressor (6), the pulverized coal injection electromagnetic valve (9) and the compressed-air electromagnetic valve (7) are all electrically connected with the electrically controlled device (11). As a result, the explosiveness of the blast furnace injection coal can be conveniently and quickly tested on site.
Description
Technical field
The utility model relates to a kind of coal dust test unit, particularly a kind of volatile device that is applied to test pulverized coal injection in blast furnace.
Background technology
Pulverized coal injection in blast furnace can substitute coke and work to provide heat and reductive agent, is to reduce one of effective measures of smelting cost.Blast furnace iron-making process has special requirement to the performance of coal injection, not only requires pit ash and sulphur content low more good more, and the calorific value of coal and grindability are high more good more, and the explosivity of coal is also had strict requirement.This is because in powder process and course of conveying, all might cause the coal dust local temperature too high with reasons such as oxygen contact owing to the storage accumulation and the conveying friction of coal dust, thereby cause coal dust explosion.When the blast-furnace coal powder injection operation, safety problem is the key of whole winding-up work.The blast characteristics parameter of coal dust is a lot; Means of testing is also many; As the spherical tank that explodes, Hartman pipe etc., but there is inconvenient conventional sense device as the on-the-spot coal dust explosion property of winding-up in these devices, because the variation of the on-the-spot coal supply kind of winding-up and the variation of process conditions such as powder process and conveying; Especially carry out the occasion of bituminous coal winding-up, the explosivity of coal dust is carried out regular fast detecting have very big difficulty.
Summary of the invention
The utility model provides a kind of pulverized coal injection into blast furna explosibility test device, has solved the problem that can not carry out regular fast detecting at the pulverized coal injection into blast furna scene that existing test unit exists.
The utility model overcomes the above problems through following scheme:
A kind of pulverized coal injection into blast furna explosibility test device; Comprise electric control gear and high-temperature resistant glass tube; In high-temperature resistant glass tube, be provided with heating platinum winding, be communicated with filter dirt case at the bottom of the pipe of high-temperature resistant glass tube, filter dirt case is provided with dedusting fan; The mouth of pipe one side at high-temperature resistant glass tube is provided with the coal dust charging pipe; The coal dust charging pipe is communicated with high pressure vessel through the breeze blowing solenoid valve, and high pressure vessel is communicated with air compressor through compressed air electromagnetic valve, and heating platinum winding, dedusting fan, air compressor, breeze blowing solenoid valve and compressed air electromagnetic valve all are electrically connected with electric control gear respectively through cable.
Above high-temperature resistant glass tube, be provided with video camera, video camera is electrically connected with electric control gear, in high pressure vessel, is provided with pressure transducer, and pressure transducer is electrically connected with electric control gear.
In electric control gear, be provided with computing machine, in computing machine, be provided with the computer program of automatic control compressor punching press, breeze blowing and combustion flame video acquisition.
The utility model quickly, accurately and conveniently detects the explosivity scene of having realized of pulverized coal injection into blast furna, thereby for the safety winding-up of blast-furnace coal powder provides reference frame, guarantees that the safety of blast furnace production is carried out.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
A kind of pulverized coal injection into blast furna explosibility test device; Comprise electric control gear 11 and high-temperature resistant glass tube 2; In high-temperature resistant glass tube 2, be provided with heating platinum winding 5; Be communicated with filter dirt case 3 at the bottom of the pipe of high-temperature resistant glass tube 2; Filter dirt case 3 is provided with dedusting fan 4, is provided with coal dust charging pipe 10 in the mouth of pipe one side of high-temperature resistant glass tube 2, and coal dust charging pipe 10 is communicated with high pressure vessel 13 through breeze blowing solenoid valve 9; High pressure vessel 13 is communicated with air compressor 6 through compressed air electromagnetic valve 7, and heating platinum winding 5, dedusting fan 4, air compressor 6, breeze blowing solenoid valve 9 and compressed air electromagnetic valve 7 all are electrically connected with electric control gear 11 respectively through cable 12.
Above high-temperature resistant glass tube 2, be provided with video camera 1, video camera 1 is electrically connected with electric control gear 11, in high pressure vessel 13, is provided with pressure transducer 8, and pressure transducer 8 is electrically connected with electric control gear 11.
In electric control gear 11, be provided with PC, in PC, be provided with the computer program of automatic control compressor punching press, breeze blowing and combustion flame video acquisition.
On the top of high-temperature resistant glass tube 2 tangible size scale is arranged, so that measure the length of flame.Video camera 1 is used for gathering all phenomenons that the coal dust sample is produced in experimentation, and the signal that collects is sent in the electric control gear 11, is stored in the computer, so that the experimenter checks analysis.High-temperature resistant glass tube 2 can not break when heating platinum winding 5 temperature are elevated to 1500 ℃, indeformable, for coal dust provides certain distribution space after by the air-flow ejection; Filter dirt case 3 constitutes jointly dust pelletizing system with dedusting fan 4, is used for eliminating the flue dust that process of the test produces.Air compressor 6, solenoid valve, pressure transducer 8 and high pressure vessel 13 mutual group become the power system of coal dust ejection; Air compressor 6 constantly is pressed into high pressure vessel 13 with air; Pressure transducer 8 was transferred to numerical value the control system that is provided with in the electric control gear 11 when high pressure vessel 13 internal pressures reached certain value; Control system provides the instruction compression machine and quits work and open solenoid valve 9 simultaneously, and it is 0.5 second that solenoid valve 9 is opened duration, and after this single test compressor that finishes is opened again.
Automatic press that this device adopted and automatic spraying system make whole plant automation degree that large increase arranged; Design of device has adopted advanced one-touch control system; Testing crew needs only accurate weighing pulverized coal sample and with the coal dust charging pipe of packing into, the initiating key of clicking then on the Control Software is just passable, and compressor punching press, breeze blowing and video acquisition process are accomplished by system automatically; Reduce loaded down with trivial details test operation process, and lowered labour intensity.The pressure variation of human factor generation and the variation of winding-up power have been avoided in the raising of this plant automation level, make the repeatability of whole device and accuracy significantly improve.
Claims (3)
1. pulverized coal injection into blast furna explosibility test device; Comprise electric control gear (11) and high-temperature resistant glass tube (2); In high-temperature resistant glass tube (2), be provided with heating platinum winding (5); Be communicated with filter dirt case (3) at the bottom of the pipe of high-temperature resistant glass tube (2), filter dirt case (3) is provided with dedusting fan (4), it is characterized in that; The mouth of pipe one side at high-temperature resistant glass tube (2) is provided with coal dust charging pipe (10); Coal dust charging pipe (10) is communicated with high pressure vessel (13) through breeze blowing solenoid valve (9), and high pressure vessel (13) is communicated with air compressor (6) through compressed air electromagnetic valve (7), and heating platinum winding (5), dedusting fan (4), air compressor (6), breeze blowing solenoid valve (9) and compressed air electromagnetic valve (7) all are electrically connected with electric control gear (11) respectively through cable (12).
2. a kind of pulverized coal injection into blast furna explosibility test device according to claim 1; It is characterized in that; Be provided with video camera (1) in the top of high-temperature resistant glass tube (2); Video camera (1) is electrically connected with electric control gear (11), in high pressure vessel (13), is provided with pressure transducer (8), and pressure transducer (8) is electrically connected with electric control gear (11).
3. a kind of pulverized coal injection into blast furna explosibility test device according to claim 1 and 2; It is characterized in that; In electric control gear (11), be provided with computing machine, in computing machine, be provided with the computer program of automatic control compressor punching press, breeze blowing and combustion flame video acquisition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120372317XU CN202285007U (en) | 2011-10-08 | 2011-10-08 | Device for testing explosiveness of blast furnace injection coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120372317XU CN202285007U (en) | 2011-10-08 | 2011-10-08 | Device for testing explosiveness of blast furnace injection coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202285007U true CN202285007U (en) | 2012-06-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120372317XU Expired - Fee Related CN202285007U (en) | 2011-10-08 | 2011-10-08 | Device for testing explosiveness of blast furnace injection coal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202285007U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102930770A (en) * | 2012-10-12 | 2013-02-13 | 浙江工业大学 | Shock tube type combustible gas explosion experiment device |
| CN102980986A (en) * | 2012-12-05 | 2013-03-20 | 徐州传庆电子科技有限公司 | Coal cloud explosion observing device on coal dust explosion identifier |
| CN104819994A (en) * | 2015-05-08 | 2015-08-05 | 武汉钢铁(集团)公司 | Long-pipe-type explosion test device being adjustable in pressure and oxygen concentration and use method thereof |
| CN105954314A (en) * | 2016-04-25 | 2016-09-21 | 东北大学 | Device and method for testing sensitivity to spontaneous ignition of flammable dust |
-
2011
- 2011-10-08 CN CN201120372317XU patent/CN202285007U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102930770A (en) * | 2012-10-12 | 2013-02-13 | 浙江工业大学 | Shock tube type combustible gas explosion experiment device |
| CN102980986A (en) * | 2012-12-05 | 2013-03-20 | 徐州传庆电子科技有限公司 | Coal cloud explosion observing device on coal dust explosion identifier |
| CN104819994A (en) * | 2015-05-08 | 2015-08-05 | 武汉钢铁(集团)公司 | Long-pipe-type explosion test device being adjustable in pressure and oxygen concentration and use method thereof |
| CN105954314A (en) * | 2016-04-25 | 2016-09-21 | 东北大学 | Device and method for testing sensitivity to spontaneous ignition of flammable dust |
| CN105954314B (en) * | 2016-04-25 | 2018-08-28 | 东北大学 | A kind of combustible dust spontaneous ignition sensitivity test device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120627 Termination date: 20151008 |
|
| EXPY | Termination of patent right or utility model |