CN209798006U - Integrated movable quick blockage clearing device for pulverized coal branch pipe - Google Patents
Integrated movable quick blockage clearing device for pulverized coal branch pipe Download PDFInfo
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- CN209798006U CN209798006U CN201920516834.6U CN201920516834U CN209798006U CN 209798006 U CN209798006 U CN 209798006U CN 201920516834 U CN201920516834 U CN 201920516834U CN 209798006 U CN209798006 U CN 209798006U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
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Abstract
The utility model discloses a clear stifled device of mobilizable quick of integral type for buggy branch pipe belongs to metallurgy, coal chemical industry field, and the device includes: the pulverized coal collecting tank is used for collecting the pulverized coal blocked in the pulverized coal branch pipe; the blockage clearing system is arranged on the pulverized coal collecting tank and is used for being detachably connected with the pulverized coal branch pipe; the pressurizing system is arranged on the blockage removing system and is used for being connected with an external pressurizing device; the powder conveying system is arranged on the powder collecting tank, connected with the pressurizing system and used for conveying the pulverized coal in the powder collecting tank outwards; the fluidization system is arranged on the powder collecting tank, connected with the pressurization system and used for assisting the pulverized coal in the powder collecting tank to flow to the powder conveying system; and the exhaust system is arranged on the powder collecting tank and used for releasing the air pressure in the powder collecting tank. The utility model has the advantages of high efficiency, quick, energy-conserving, environmental protection, can avoid the clear stifled in-process of buggy branch pipe to empty the emission, the polluted environment spouts the buggy of collecting into the blast furnace simultaneously and effectively utilizes resources are saved.
Description
Technical Field
The utility model belongs to the technical field of metallurgy, coal chemical industry etc., concretely relates to buggy is mobilizable clear stifled device of speed of integral type for branch.
Background
With the continuous upgrade of environmental protection policy in the steel industry in China, the blast furnace iron making production has increasingly stringent environmental protection requirements for each unit. The blast furnace coal injection system is characterized in that coal powder is conveyed to a distributor through compressed air and nitrogen by adopting a coal powder main pipe and then conveyed to each tuyere through a coal powder branch pipe. The pneumatic conveying adopts high-pressure gas to carry pulverized coal to flow in a closed pipeline, the flow velocity in a pulverized coal branch pipe is very low, once the power of the conveying gas is insufficient, pulverized coal particles are settled, the pulverized coal branch pipe is easy to block, and the coal injection of a blast furnace is influenced. Once coal breakage of the coal dust branch pipe is detected, blockage removal is needed, and five conventional blockage removal methods are adopted in a production field: the first method is to close a coal powder branch pipe cut-off valve and switch to compressed air to blow and sweep the coal powder into a blast furnace, the operation can be cleared when the blockage is not serious, and the operation can aggravate the pipeline blockage when the blockage length is longer; the second is to break the end of the coal powder branch pipe and the spray gun to release the pressure, the operation directly discharges the coal powder to the air, which causes environmental pollution, and simultaneously, a large amount of coal powder is deposited on the tuyere platform and the furnace shell, which has potential safety hazard of deflagration; the third patent is CN202322879U, the concrete operation is to close a coal powder branch pipe cut-off valve, a coal powder collecting device is arranged on a distributor platform, the coal powder collected by the method needs to be recycled on a coal gas area of the distributor platform manually, and the risk of operators is increased; the fourth patent is CN207699616U, the concrete operation is that a cloth bag with a cut-off valve is arranged between a rubber tube at the tail end of a coal dust branch pipe and a spray gun, the method can release pressure after the branch pipe is blocked, but when the coal dust branch pipe is seriously blocked, the secondary pressurization can not be carried out in the pipeline, and the cleaning is difficult; in the fifth patent, CN207047267U, a blockage clearing surrounding pipe is installed above the tuyere, the pulverized coal collected by the method is difficult to be effectively utilized, the mechanism is huge and complex, and the surrounding pipe influences the hoisting of the tuyere platform and is inconvenient to implement.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a clear stifled device of mobilizable quick of integral type for buggy branch pipe can avoid the clear stifled in-process of buggy branch pipe to empty emission, polluted environment, can also spout the buggy of collecting into the blast furnace and effectively utilize resources are saved.
The utility model discloses a realize through following technical scheme:
The utility model provides a pair of buggy is mobilizable clear stifled device of integral type for branch pipe, include: the pulverized coal collecting tank is used for collecting the pulverized coal blocked in the pulverized coal branch pipe; the blockage clearing system is arranged on the pulverized coal collecting tank and is used for being detachably connected with the pulverized coal branch pipe; the pressurizing system is arranged on the blockage removing system and is used for being connected with an external pressurizing device; the powder conveying system is arranged on the powder collecting tank, connected with the pressurizing system and used for conveying the pulverized coal in the powder collecting tank outwards; the fluidization system is arranged on the powder collecting tank, connected with the pressurization system and used for assisting the pulverized coal in the powder collecting tank to flow to the powder conveying system; and the exhaust system is arranged on the powder collecting tank and used for releasing the air pressure in the powder collecting tank.
further, the blockage clearing system is composed of a blockage clearing pipeline, a first blockage clearing valve, a second blockage clearing valve, a blockage clearing quick-release hose and a quick-release tee joint, wherein the blockage clearing pipeline is installed on the powder collecting tank, and the first blockage clearing valve is arranged on the blockage clearing pipeline on the connection side of one end of the blockage clearing quick-release hose; the quick-release tee is connected with the coal gas branch pipe, the spray gun and the blockage-removing quick-release hose, and a second blockage-removing valve is arranged on the upper portion of the quick-release tee at the connecting side of the other end of the blockage-removing quick-release hose.
Furthermore, pressurization system comprises pressurization pipeline, first forcing valve and the second forcing valve of locating on the pressurization pipeline, pressurization pipeline one end is connected with outside pressure device through pressurization quick detach hose, and the other end is connected on clear stifled pipeline and for first clear stifled valve with receive the different side settings of powder jar.
further, the powder conveying system consists of a powder conveying pipeline and a powder conveying valve arranged on the powder conveying pipeline, one end of the powder conveying pipeline is connected to the powder collecting tank, and the other end of the powder conveying pipeline is connected between a first pressurizing valve and a second pressurizing valve in the pressurizing system.
Furthermore, the fluidization system comprises a fluidization pipeline, a fluidization valve and a fluidization device, wherein one end of the fluidization pipeline is connected to the pressurization pipeline and arranged opposite to the first pressurization valve and the second pressurization valve, the other end of the fluidization pipeline is connected with the fluidization device arranged at the bottom of the powder collection tank, and the fluidization valve is arranged on the fluidization pipeline.
furthermore, the exhaust system consists of an exhaust pipeline, an exhaust valve arranged on the exhaust pipeline and a filtering device.
Further, still be equipped with first pressure sensor on the clear stifled pipeline, still be equipped with second pressure sensor on receiving the powder jar.
Further, the powder collecting tank is arranged on the machine frame, and a guide wheel is arranged at the bottom of the machine frame.
The utility model has the advantages that:
1. compared with the prior process system, the utility model realizes the operation integration of the pressurization, blockage removal and powder delivery, and has simpler structure;
2. Compared with the prior art system, the utility model, the powder collecting tank is arranged on the bracket with the guide wheel, can move flexibly on the air port platform, and realizes quick blockage removal;
3. compared with the prior art system, the utility model, can adopt pneumatic transmission to spray the blocked coal powder into the blast furnace again for recycling, and saves resources.
additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings, in which:
Fig. 1 is a schematic structural view of the present invention;
Description of the labeling: the device comprises a first pressure sensor 1, a first blockage removing valve 2, a second pressurizing valve 3, a second pressure sensor 4, a powder collecting tank 5, a support 6, a powder conveying valve 7, a first pressurizing valve 8, a fluidizing valve 9, a pressurizing quick-release hose 10, a guide wheel, a fluidizing device 12, a powder conveying pipeline 13, a blockage removing pipeline 14, an exhaust valve 15, a filtering device 16, a blockage removing quick-release hose 17, a second blockage removing valve 18, a quick-release tee joint 19, a second stop valve 20, a pulverized coal branch pipe 21, a first stop valve 22, a third stop valve 23 and an air port peephole 24.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.
as shown in figure 1, the integrated movable quick blockage removing device for the coal dust branch pipe comprises a powder collecting tank 5, a pressurizing system, a blockage removing system, a powder conveying system, a fluidizing system and an exhaust system. The powder collecting tank 5 is used for collecting the coal powder blocked in the coal powder branch pipe 21; the blockage clearing system is arranged on the powder collecting tank and is used for being detachably connected with the coal powder branch pipe 21, and consists of a blockage clearing pipeline 14, a first blockage clearing valve 2, a second blockage clearing valve 18, a blockage clearing quick-release hose 17 and a quick-release tee joint 19, wherein the blockage clearing pipeline 14 is arranged on the powder collecting tank 5, and the first blockage clearing valve 2 is arranged on the connecting side of the blockage clearing quick-release hose 17; the quick-release tee joint 19 is connected with a coal gas branch pipe 21, a spray gun and a blockage-removing quick-release hose 17, and a second blockage-removing valve 18 is arranged on the connecting side of the quick-release tee joint and the other end of the blockage-removing quick-release hose 17; the pressurization system is arranged on the blockage clearing system, is used for being connected with an external pressurization device, and consists of a pressurization pipeline, a first pressurization valve 8 and a second pressurization valve 3, wherein the first pressurization valve 8 and the second pressurization valve 3 are arranged on the pressurization pipeline; the powder conveying system is arranged on the powder collecting tank 5 and connected with the pressurizing system, is used for conveying the pulverized coal in the powder collecting tank 5 outwards, and consists of a powder conveying pipeline 13 and a powder conveying valve 7 arranged on the powder conveying pipeline 13, wherein one end of the powder conveying pipeline 13 is connected to the powder collecting tank 5, and the other end of the powder conveying pipeline 13 is connected between a first pressurizing valve 8 and a second pressurizing valve 3 in the pressurizing system; the fluidization system is arranged on the powder collecting tank 5 and connected with the pressurization system, is used for assisting the pulverized coal in the powder collecting tank 5 to flow to the powder conveying system, and consists of a fluidization pipeline, a fluidization valve 9 and a fluidization device 12, one end of the fluidization pipeline is connected to the pressurization pipeline and arranged opposite to the first pressurization valve and the second pressurization valve, the other end of the fluidization pipeline is connected with the fluidization device arranged at the bottom of the powder collecting tank, and the fluidization valve 9 is arranged on the fluidization pipeline; the exhaust system is arranged on the powder collecting tank 5 and used for discharging air pressure in the powder collecting tank 5, and consists of an exhaust pipeline, an exhaust valve 15 arranged on the exhaust pipeline and a filtering device 16.
The blockage clearing pipeline in the embodiment is also provided with a first pressure sensor 1, and the powder collecting tank 5 is also provided with a second pressure sensor 4 which can be used for checking the pressure values of the respective working processes.
The powder collecting tank 5 in this embodiment is arranged on the frame 6, and the bottom of the frame 6 is provided with a guide wheel 11. The powder collecting tank can be conveniently moved to each air port for clearing the blockage.
When the integrated movable quick blockage removing device for the pulverized coal branch pipe works, the quick blockage removing method comprises the following steps: firstly, observing and determining that the coal dust branch pipe is blocked by using a tuyere peephole; then, cutting off the connection between the pulverized coal branch pipe and the spray gun, and connecting the quick blockage removing device between the pulverized coal branch pipe and the spray gun; then, after the pressurizing system of the rapid blockage cleaning device pressurizes the coal powder branch pipe to a set pressure, the blockage cleaning system collects the blocked coal powder in the coal powder branch pipe into a powder collecting tank until the coal powder branch pipe is not blocked any more; then, spraying the pulverized coal collected in the powder collecting tank back into the blast furnace through a fluidization system and a powder conveying system until no pulverized coal exists in the powder collecting tank; and finally, removing the quick blockage removing device and recovering the connection between the coal powder branch pipe and the spray gun.
Specifically, when it is observed from the tuyere sight glass 24 that the pulverized coal branch pipe is indeed clogged, the following steps are performed:
firstly, immediately closing a third cut-off valve 23 on a spray gun, then closing a first cut-off valve 22 and a second cut-off valve 20 on a coal dust branch pipe 21, and connecting a quick-release tee 19 between the second cut-off valve 20 on the coal dust branch pipe 21 and the third cut-off valve 23 on the spray gun and connecting a pressurizing quick-release hose 10;
Step two, closing the powder conveying valve 7, the fluidizing valve 9 and the first blockage removing valve 2; the exhaust valve 15, the first pressurizing valve 8, the second pressurizing valve 3, the second blockage removing valve 18 and the second stop valve 20 are opened in sequence, after the coal dust branch pipe and the blockage removing quick-release hose 17 are pressurized to a set pressure (an initial value is 0.6MPa), the second pressurizing valve 3 is closed, the first blockage removing valve 2 is opened, high-pressure gas in the coal dust branch pipe 21 and the blockage removing quick-release hose 17 carries coal dust to be quickly discharged into the powder collecting tank 5, the gas is discharged into the atmosphere through the exhaust valve 15 and the filtering device 16, and the coal dust is kept in the powder collecting tank 5 under the action of the filtering device 16. When the first pressure sensor 1 and the second pressure sensor 4 display that the pressure in the powder collecting tank 5 is equal to the set pressure (the initial value is 0.001MPa), the first blockage removing valve 2 is closed, the second pressurizing valve 3 is opened, and the operations are repeated.
Step three, closing the second blockage removing valve 18, opening a third stop valve 23 on the spray gun, a second stop valve 20 and a first stop valve 22 on the pulverized coal branch pipe 21, observing whether coal flow continuously appears in a tuyere peephole 24, stopping blockage removing if the coal flow continuously appears, and repeating the operation of the second step if the coal flow does not continuously appear;
Step four, when the pulverized coal branch pipe 21 is confirmed to be cleared, closing a first cut-off valve 22 and a second cut-off valve 20 on the pulverized coal branch pipe, closing a first pressurizing valve 9, a first blockage clearing valve 2 and an exhaust valve 15, opening a second blockage clearing valve 18 and a second pressurizing valve 3, opening a fluidizing valve 9 to pressurize a powder receiving tank 5 to a set pressure (an initial value of 0.6MPa), opening a powder conveying valve 7, and spraying pulverized coal in the powder receiving tank 5 into a blast furnace to finish pulverized coal recovery;
and step five, after the pulverized coal in the pulverized coal collecting tank 5 is emptied, closing the fluidizing valve 9 and the second blockage removing valve 18, and opening a second cut-off valve 20 and a first cut-off valve 22 on the pulverized coal branch pipe to recover normal coal injection of the blast furnace.
the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and it is obvious that those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. The utility model provides a clear stifled device of integral type mobilizable quick for buggy branch pipe which characterized in that includes:
The powder collecting tank (5) is used for collecting the coal powder blocked in the coal powder branch pipe (21);
The blockage clearing system is arranged on the pulverized coal collecting tank and is used for being detachably connected with the pulverized coal branch pipe;
The pressurizing system is arranged on the blockage removing system and is used for being connected with an external pressurizing device;
The powder conveying system is arranged on the powder collecting tank, connected with the pressurizing system and used for conveying the pulverized coal in the powder collecting tank outwards;
The fluidization system is arranged on the powder collecting tank, connected with the pressurization system and used for assisting the pulverized coal in the powder collecting tank to flow to the powder conveying system;
And the exhaust system is arranged on the powder collecting tank and used for releasing the air pressure in the powder collecting tank.
2. The integrated movable quick blockage removal device for the coal dust branch pipe according to claim 1, wherein the blockage removal system consists of a blockage removal pipeline (14), a first blockage removal valve (2), a second blockage removal valve (18), a blockage removal quick-release hose (17) and a quick-release tee joint (19), the blockage removal pipeline is arranged on the coal dust collection tank, and the first blockage removal valve is arranged on the connection side of the blockage removal quick-release hose; the quick-release tee is connected with the coal gas branch pipe, the spray gun and the blockage-removing quick-release hose, and a second blockage-removing valve is arranged on the upper portion of the quick-release tee at the connecting side of the other end of the blockage-removing quick-release hose.
3. the integrated movable quick blockage removal device for the coal dust branch pipe according to claim 2 is characterized in that the pressurizing system consists of a pressurizing pipeline, a first pressurizing valve (8) and a second pressurizing valve (3), the first pressurizing valve and the second pressurizing valve are arranged on the pressurizing pipeline, one end of the pressurizing pipeline is connected with an external pressurizing device through a pressurizing quick-release hose (10), and the other end of the pressurizing pipeline is connected to the blockage removal pipeline and is arranged opposite to the first blockage removal valve and the powder collection tank.
4. the integrated movable quick blockage removal device for the pulverized coal branch pipe according to claim 3, wherein the powder conveying system consists of a powder conveying pipeline (13) and a powder conveying valve (7) arranged on the powder conveying pipeline, one end of the powder conveying pipeline is connected to the powder collecting tank, and the other end of the powder conveying pipeline is connected between a first pressurizing valve and a second pressurizing valve in the pressurizing system.
5. the integrated movable quick blockage removal device for the pulverized coal branch pipe according to claim 4, wherein the fluidization system comprises a fluidization pipeline, a fluidization valve (9) and a fluidization device (12), one end of the fluidization pipeline is connected to the pressurization pipeline and arranged opposite to the first pressurization valve and the second pressurization valve, the other end of the fluidization pipeline is connected with the fluidization device arranged at the bottom of the pulverized coal collection tank, and the fluidization valve is arranged on the fluidization pipeline.
6. The integrated movable quick blockage removal device for the pulverized coal branch pipe according to claim 5, wherein the exhaust system consists of an exhaust pipeline, an exhaust valve (15) arranged on the exhaust pipeline and a filtering device (16).
7. The integrated movable quick blockage removal device for the pulverized coal branch pipe according to claim 6, wherein a first pressure sensor (1) is further arranged on the blockage removal pipeline, and a second pressure sensor (4) is further arranged on the powder collection tank.
8. the integrated movable quick blockage removal device for the pulverized coal branch pipe according to any one of claims 1 to 7, wherein the powder collection tank is arranged on a frame (6), and a guide wheel (11) is arranged at the bottom of the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920516834.6U CN209798006U (en) | 2019-04-16 | 2019-04-16 | Integrated movable quick blockage clearing device for pulverized coal branch pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920516834.6U CN209798006U (en) | 2019-04-16 | 2019-04-16 | Integrated movable quick blockage clearing device for pulverized coal branch pipe |
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| CN209798006U true CN209798006U (en) | 2019-12-17 |
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| CN201920516834.6U Active CN209798006U (en) | 2019-04-16 | 2019-04-16 | Integrated movable quick blockage clearing device for pulverized coal branch pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109943675A (en) * | 2019-04-16 | 2019-06-28 | 中冶赛迪技术研究中心有限公司 | The moveable rapid block-cleaning device and method of coal dust Zhi Guanyong integral type |
-
2019
- 2019-04-16 CN CN201920516834.6U patent/CN209798006U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109943675A (en) * | 2019-04-16 | 2019-06-28 | 中冶赛迪技术研究中心有限公司 | The moveable rapid block-cleaning device and method of coal dust Zhi Guanyong integral type |
| CN109943675B (en) * | 2019-04-16 | 2023-09-12 | 中冶赛迪技术研究中心有限公司 | Integral movable rapid blocking removing device and method for pulverized coal branch pipe |
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