CN220485735U - Coal injection device of blast furnace - Google Patents
Coal injection device of blast furnace Download PDFInfo
- Publication number
- CN220485735U CN220485735U CN202322037668.0U CN202322037668U CN220485735U CN 220485735 U CN220485735 U CN 220485735U CN 202322037668 U CN202322037668 U CN 202322037668U CN 220485735 U CN220485735 U CN 220485735U
- Authority
- CN
- China
- Prior art keywords
- blast furnace
- coal injection
- driving
- injection apparatus
- movable seat
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- 239000003245 coal Substances 0.000 title claims abstract description 59
- 238000002347 injection Methods 0.000 title claims abstract description 58
- 239000007924 injection Substances 0.000 title claims abstract description 58
- 230000005855 radiation Effects 0.000 abstract description 4
- 238000003723 Smelting Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- Incineration Of Waste (AREA)
Abstract
The utility model discloses a blast furnace coal injection device which comprises a plurality of movable seats arranged on the outer ring of a blast furnace and a first driving mechanism for driving the movable seats to move along the radial direction of the blast furnace, wherein guide rails are arranged at the bottoms of the movable seats, coal injection guns pointing to the blast furnace are arranged on the movable seats, and jacks are arranged on the blast furnace in cooperation with the coal injection guns. According to the utility model, the movable seat can be driven to move through the first driving mechanism to draw the coal injection gun out of the blast furnace, and the support pipe is driven to rotate through the second driving mechanism to drive the coal injection gun, so that the coal injection gun is far away from the blast furnace, and the high-temperature radiation born by a worker for replacing the coal injection gun is reduced.
Description
Technical Field
The utility model relates to the technical field of blast furnace coal injection, in particular to a blast furnace coal injection device.
Background
The blast furnace coal injection technology is a technology which uses pulverized coal to replace part of coke as a reducing agent in the blast furnace smelting process. The existing iron-smelting blast furnace generally adopts coal injection guns to inject coal dust to provide combustion medium for the blast furnace, each blast furnace is provided with a plurality of coal injection guns along the circumferential direction, and the front ends of the coal injection guns are worn due to continuous coal injection, so that the blast furnace can be replaced once in 20-30 days according to the use condition. At present, manual disassembly and assembly are adopted, and the spray gun is pulled out during disassembly and assembly, but the working environment is very bad due to the fact that the spray gun is very close to a blast furnace during disassembly and assembly, and high-temperature radiation is adopted.
Disclosure of Invention
The utility model aims to avoid the defects in the prior art and provides a blast furnace coal injection device, so that the defects in the prior art are effectively overcome.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a blast furnace coal injection device, includes a plurality of removal seat and the first actuating mechanism of drive removal seat along the radial removal of blast furnace that sets up at the blast furnace outer lane, the bottom of removing the seat is provided with the guide rail, be provided with the directional coal injection rifle of blast furnace on removing the seat, the cooperation coal injection rifle sets up the jack on the blast furnace.
Further, a supporting tube is arranged on the movable seat in cooperation with the coal injection gun.
Further, the support tube can vertically rotate and is arranged on the movable seat, a second driving mechanism for driving the support tube to rotate is arranged on the movable seat, and a support mechanism is arranged on the movable seat in a matched mode with the support tube.
Further, the supporting mechanism comprises supporting rods arranged on two sides of the supporting tube, and rollers are arranged on the supporting rods.
Further, a driven gear is arranged on one side of the supporting tube, and the second driving mechanism comprises a driving gear matched with the driven gear and a second driving device for driving the driving gear to rotate.
Further, the first driving mechanism comprises a screw rod and a first driving device for driving the screw rod to rotate, and the movable seat is in threaded connection with the screw rod.
Further, a plug is arranged on the coal injection gun in cooperation with the jack, and the front end of the plug is a conical surface.
Further, a baffle is arranged at the rear side of the plug.
Further, an annular swing groove is formed in the plug in a matched mode, and the baffle is sleeved at the swing groove.
The technical scheme of the utility model has the following beneficial effects: according to the utility model, the movable seat can be driven to move through the first driving mechanism to draw the coal injection gun out of the blast furnace, and the support pipe is driven to rotate through the second driving mechanism to drive the coal injection gun, so that the coal injection gun is far away from the blast furnace, and the high-temperature radiation born by a worker for replacing the coal injection gun is reduced.
Drawings
FIG. 1 is a schematic side view of an embodiment of the present utility model;
fig. 2 is an enlarged view at a in fig. 1.
Detailed Description
Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.
In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1-2, the blast furnace coal injection device in the embodiment comprises a plurality of movable seats 2 arranged on the outer ring of a blast furnace 1 and a first driving mechanism 3 for driving the movable seats 2 to move along the radial direction of the blast furnace 1, wherein a guide rail 4 is arranged at the bottom of the movable seats 2, a coal injection gun 5 pointing to the blast furnace 1 is arranged on the movable seats 2, and a jack 6 is arranged on the blast furnace 1 in cooperation with the coal injection gun 5; the movable seat 2 is driven to move through the first driving mechanism 3, the coal injection gun 5 is pulled out of the blast furnace 1, so that the coal injection gun 5 is far away from the blast furnace 1, and high-temperature radiation born by a worker for replacing the coal injection gun 5 is reduced;
preferably, a support pipe 7 is arranged on the movable seat 2 in cooperation with the coal injection gun 5, and the support pipe 7 plays a role in supporting the coal injection gun 5, so that the overall strength is improved;
preferably, the support tube 7 is vertically and rotatably arranged on the movable seat 2, the movable seat 2 is provided with a second driving mechanism 8 for driving the support tube 7 to rotate, and the movable seat 2 is provided with a support mechanism in cooperation with the support tube 7; the second driving mechanism 8 drives the supporting tube 7 to drive the coal injection gun 5 to rotate, so that the supporting tube 7 and the coal injection gun 5 can be rotated to one side back to the blast furnace 1 together, the front end of the coal injection gun 5 is further far away from the blast furnace 1, and the working environment for replacing the mouth of the coal injection gun 5 is optimized; wherein the support tube 7 can be supported by a support mechanism before and after rotation;
preferably, the supporting mechanism comprises supporting rods 9 arranged at two sides of the supporting tube 7, the supporting rods 9 are provided with rollers 10, and the supporting rods 9 are arranged at two sides of the supporting tube 7, so that the supporting tube 7 can be supported before and after rotation, and when the moving seat 2 drives the supporting tube 7 to move, the supporting tube 7 can be supported on the ground in a rolling way through the rollers 10;
preferably, one side of the support tube 7 is provided with a driven gear 11, the second driving mechanism 8 comprises a driving gear 81 matched with the driven gear 11 and a second driving device 82 for driving the driving gear 81 to rotate, the second driving device 82 is a servo motor, the motor drives the driven gear 11 to rotate through the driving gear 81 so as to drive the support tube 7 to rotate, after the coal injection gun 5 is replaced, the servo motor drives the driving gear 81 to reversely rotate so as to drive the support tube 7 to rotate back towards one side of the blast furnace 1, and the first driving mechanism 3 drives the movable seat 2 to move towards the blast furnace 1 so as to extend the coal injection gun 5 into the jack 6;
preferably, the first driving mechanism 3 comprises a screw 31 and a first driving device for driving the screw 31 to rotate, the movable seat 2 is in threaded connection with the screw 31, the movable seat 2 is matched with the screw 31 and the guide rail 4 to form a screw structure, the first driving device is a servo motor, and the first driving device 32 drives the screw 31 to rotate so as to drive the movable seat 2 to move on the guide rail 4;
preferably, the plug 51 is arranged on the coal injection gun 5 in cooperation with the jack 6, the front end of the plug 51 is a conical surface, the caliber of the jack 6 is larger than the outer diameter of the coal injection gun 5, the coal injection gun 5 is conveniently inserted into the jack 6, and then the coal injection gun 5 can be matched with the jack 6 through the plug 51, so that the gap between the coal injection gun 5 and the jack 6 is reduced;
preferably, a baffle plate 52 is arranged at the rear side of the plug 51, and the baffle plate 52 can be blocked at the outer side of the jack 6 to play a role in positioning;
preferably, an annular swinging groove 53 is formed on the plug 51 in cooperation with the baffle plate 52, the baffle plate 52 is sleeved at the swinging groove 53, and the baffle plate 52 can swing in the swinging groove 53 in cooperation with the inclined plane of the blast furnace 1, so that the baffle plate 52 can be in stable cooperation contact with the blast furnace 1.
The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (9)
1. A blast furnace coal injection device, characterized in that: the device comprises a plurality of movable seats arranged on the outer ring of a blast furnace and a first driving mechanism for driving the movable seats to move along the radial direction of the blast furnace, wherein guide rails are arranged at the bottoms of the movable seats, coal injection guns pointing to the blast furnace are arranged on the movable seats, and jacks are arranged on the blast furnace in cooperation with the coal injection guns.
2. The blast furnace coal injection apparatus according to claim 1, wherein: the movable seat is provided with a supporting tube matched with a coal injection gun.
3. A blast furnace coal injection apparatus according to claim 2, wherein: the support tube is vertically and rotatably arranged on the movable seat, a second driving mechanism for driving the support tube to rotate is arranged on the movable seat, and a support mechanism is arranged on the movable seat in a matched manner with the support tube.
4. A blast furnace coal injection apparatus according to claim 3, wherein: the supporting mechanism comprises supporting rods arranged on two sides of the supporting tube, and idler wheels are arranged on the supporting rods.
5. A blast furnace coal injection apparatus according to claim 3, wherein: one side of the supporting tube is provided with a driven gear, and the second driving mechanism comprises a driving gear matched with the driven gear and a second driving device for driving the driving gear to rotate.
6. The blast furnace coal injection apparatus according to claim 1, wherein: the first driving mechanism comprises a screw and a first driving device for driving the screw to rotate, and the movable seat is in threaded connection with the screw.
7. The blast furnace coal injection apparatus according to claim 1, wherein: the coal injection gun is provided with a plug matched with the jack, and the front end of the plug is a conical surface.
8. The blast furnace coal injection apparatus of claim 7, wherein: the rear side of the plug is provided with a baffle.
9. The blast furnace coal injection apparatus of claim 8, wherein: an annular swing groove is formed in the plug in a matched mode with the baffle, and the baffle is sleeved at the swing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322037668.0U CN220485735U (en) | 2023-08-01 | 2023-08-01 | Coal injection device of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322037668.0U CN220485735U (en) | 2023-08-01 | 2023-08-01 | Coal injection device of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220485735U true CN220485735U (en) | 2024-02-13 |
Family
ID=89832288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322037668.0U Active CN220485735U (en) | 2023-08-01 | 2023-08-01 | Coal injection device of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220485735U (en) |
-
2023
- 2023-08-01 CN CN202322037668.0U patent/CN220485735U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |