CN210773506U

CN210773506U - Blast furnace taphole smoke removing device

Info

Publication number: CN210773506U
Application number: CN201921788015.3U
Authority: CN
Inventors: 岐荣军; 牛新章; 尹延亭; 杨鹏; 张引平
Original assignee: Shanxi Gaoyi Steel Co ltd
Current assignee: Shanxi Gaoyi Steel Co ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-06-16
Anticipated expiration: 2029-10-23

Abstract

The utility model discloses a blast furnace iron notch department smoke and dust remove device relates to blast furnace ironmaking technical field, specifically is a blast furnace iron notch department smoke and dust remove device, including the suction hood, the whole of suction hood is the halfcylinder, and the dust removal groove has been seted up to the inside of suction hood, the convex spray gun of the equal fixedly connected with of the left and right sides face of dust removal groove, one side fixedly connected with dust absorption pipeline of suction hood, the powerful dust catcher of inside fixedly connected with of dust absorption pipeline, the one end fixedly connected with dust removal pond of dust absorption pipeline. This blast furnace taphole department smoke and dust remove device sets up through the cooperation of dust excluding hood and convex spray gun, utilizes atomizer to spray water for the dust removal inslot portion of dust excluding hood at the in-process that uses to played the effect of collecting the smoke and dust and cooling off the smoke and dust, and the smoke and dust is difficult for taking place the raise dust after the water smoke humidification cooling, reached the purpose that prevents smoke and dust secondary diffusion, also reduced the high temperature harm to dust collector simultaneously, and whole setting can not influence the normal work of taphole yet.

Description

Blast furnace taphole smoke removing device

Technical Field

The utility model relates to the technical field of blast furnace ironmaking, in particular to a smoke and dust removing device for a blast furnace taphole.

Background

The blast furnace is an important component of an iron-making workshop, the large blast furnace can be used for tapping for about 14 times per day, the tapping time is more than 100 minutes each time, the tapping time is almost continuous all day long, a blast furnace tapping hole is usually accompanied with a large amount of smoke while jetting molten iron, and during the tapping period, about 2.5kg of smoke is generated every 1t of iron produced on average, so that the environmental pollution is serious.

The flue gas sprayed from the tap hole has the characteristics of higher temperature, strong spraying force, large spraying amount, wide range of smoke particle sizes and the like, the main components of the flue gas comprise harmful substances such as TFe, FeO, Fe2O3 and the like, the dust concentration can reach 3g/m3 (standard), and the flue gas from the tap hole is sprayed from the tap hole in a spraying manner under the action of hot pressing and furnace pressure and rapidly rises and diffuses to be diffused in the whole tap hole.

The blast furnace taphole smoke guide and dust removal device disclosed in the chinese utility model patent application publication No. CN202337793U, though, this blast furnace taphole smoke guide and dust removal device, set up the dust excluding hood on the upper portion of taphole, increase portable or fixed smoke guide device in the lower part of dust excluding hood, make smoke guide device produce by lower supreme air current, form effectual wind curtain that makes progress, thereby can form shielding effect to the smoke and dust, better improve dust removal effect, and reduced the amount of wind for dust removal, however, this blast furnace taphole smoke guide and dust removal device, do not consider the actual conditions of blast furnace taphole, when the molten iron sprays, smoke guide device of the lower part of dust excluding hood can not realize its effect, and the heat that the discharge of smoke and dust department is big, the diffuse range is wide, therefore, there is the dust removal effect poor, smoke and dust high temperature damages equipment and has influenced the shortcoming that the molten iron normally discharges.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a blast furnace taphole smoke and dust removing device, which solves the problems in the prior art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a blast furnace taphole department smoke and dust remove device, includes the suction hood, the whole of suction hood is the halfcylinder, the dust removal groove has been seted up to the inside of suction hood, the equal fixedly connected with convex spray gun of dust removal groove left and right sides face, one side fixedly connected with dust absorption pipeline of suction hood, the inside fixedly connected with powerful dust catcher of dust absorption pipeline, the one end fixedly connected with dust removal pond of dust absorption pipeline.

Optionally, one side of the dust hood is fixedly connected with an auxiliary supporting block, and one end of the auxiliary supporting block is fixedly connected to the surface of the furnace wall at the upper part of the taphole.

Optionally, the upper portion of the dust hood is fixedly connected with a communicating vessel, and three side surfaces of the communicating vessel are fixedly connected with water pipes.

Optionally, one end of the water pipe is fixedly connected with the arc-shaped spray gun, and the other end of the water pipe is fixedly connected with the water tank.

Optionally, the number of the circular arc-shaped spray guns is two, and the surface of each of the two circular arc-shaped spray guns is provided with an atomizing nozzle.

Optionally, the upper surface of the dust removal tank is fixedly connected with a water tank, and the output end of the powerful dust collector is inserted into the dust removal tank.

(III) advantageous effects

The utility model provides a blast furnace taphole smoke and dust remove device possesses following beneficial effect:

1. this blast furnace taphole department smoke and dust remove device, cooperation through dust excluding hood and convex spray gun sets up, dust excluding hood monolithic fixation is on the upper portion of taphole, do benefit to the smoke and dust of collecting taphole department, the in-process that uses utilizes atomizer to spray water smoke for the dust removal inslot portion of dust excluding hood, thereby the effect of collecting smoke and dust and cooling smoke and dust has been played, and the smoke and dust is difficult for taking place the raise dust after the water smoke humidification cooling, the purpose of preventing smoke and dust secondary diffusion has been reached, the smoke and dust after the temperature reduces a little simultaneously, the high temperature harm to dust collector has also been reduced, this sets up simple structure, the effect is showing, whole setting can not influence the normal work of taphole.

2. This blast furnace iron notch department smoke and dust remove device sets up through the cooperation in dust absorption pipeline and dust removal pond, and the in-process smoke and dust that uses finally can collect the inside in dust removal pond through dust absorption pipeline to harmful substance and the effect to the smoke and dust cooling once more in having played the decomposition smoke and dust, the smoke and dust obtains further processing in the inside in dust removal pond, should set up to be different from directly discharging aloft, has reached the purpose of environmental protection, has realized the dual efficiency of getting rid of and handling of smoke and dust.

Drawings

FIG. 1 is a schematic view of an assembly structure of the dust hood of the present invention;

FIG. 2 is a schematic view of the distribution structure of the water pipe of the present invention;

FIG. 3 is a schematic structural view of the dust removing groove of the present invention;

FIG. 4 is a schematic sectional view of the dust collecting duct and the dust collecting tank of the present invention;

fig. 5 is a schematic structural view of the arc-shaped spray gun of the present invention.

In the figure: 1. a dust hood; 2. a dust removal groove; 3. a circular arc spray gun; 4. a dust collection duct; 5. a powerful dust collector; 6. a dust removal tank; 7. an auxiliary support block; 8. a taphole; 9. a furnace wall; 10. a communicating vessel; 11. a water pipe; 12. a water tank; 13. an atomizing spray head.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 5, the present invention provides a technical solution: a blast furnace taphole smoke dust removing device comprises a dust hood 1, wherein one side of the dust hood 1 is fixedly connected with an auxiliary supporting block 7, one end of the auxiliary supporting block 7 is fixedly connected to the surface of a furnace wall 9 at the upper part of a taphole 8, the upper part of the dust hood 1 is fixedly connected with a communicating vessel 10, three side surfaces of the communicating vessel 10 are fixedly connected with water pipes 11, one end of each water pipe 11 is fixedly connected with an arc-shaped spraying gun 3, the other end of each water pipe 11 is fixedly connected with a water tank 12, the whole dust hood 1 is a semi-cylindrical body, a dust removing groove 2 is arranged in the dust hood 1, the left side surface and the right side surface of the dust removing groove 2 are fixedly connected with the arc-shaped spraying guns 3, the dust hood 1 is integrally fixed at the upper part of the taphole by matching the dust hood 1 and the arc-shaped spraying guns 3, the smoke dust at the taphole 8 is collected conveniently, and water mist is sprayed into the dust removing groove 2 of the dust, thereby having played the effect of collecting the smoke and dust and cooling the smoke and dust, and the smoke and dust is difficult for taking place the raise dust after the water smoke humidification cooling, has reached the purpose of preventing the smoke and dust secondary diffusion, the smoke and dust after the temperature reduces a little at the same time, the high temperature damage to the dust collector has also been reduced, the setting structure is simple, the effect is obvious, the whole setting does not influence the normal work of taphole, the quantity of the arc spray gun 3 is two, the surface of two arc spray guns 3 is all provided with the atomizer 13, one side of the suction hood 1 is fixedly connected with the dust absorption pipeline 4, the inside of the dust absorption pipeline 4 is fixedly connected with the powerful dust catcher 5, one end of the dust absorption pipeline 4 is fixedly connected with the dust removal pool 6, the upper surface of the dust removal pool 6 is fixedly connected with the water tank 12, the output of the powerful dust catcher 5 is pegged graft in the inside of the dust removal pool 6, through the cooperation setting of dust absorption pipeline 4 and dust removal pool, therefore, the effects of decomposing harmful substances in the smoke and cooling the smoke and dust again are achieved, the smoke and dust is further treated in the dust removal tank 6, the arrangement is different from direct emission in the air, the purpose of environmental protection is achieved, and the dual effects of removing and treating the smoke and dust are achieved.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

When the dust removal device is used, the lower part of the dust hood 1 is right opposite to the injection position of the tap hole, when the iron hole of the blast furnace starts to inject molten iron to an external groove, the strong dust collector 7 starts to work, under the combined action of the dust collection pipeline 4 and the dust hood 1, smoke dust sprayed out from the interior of the blast furnace along with the molten iron firstly enters the interior of the dust removal groove 2, at the moment, the atomizing nozzle 13 of the arc-shaped spray gun 3 sprays the interior of the dust removal groove 2, so that the smoke dust in the interior of the dust removal groove 2 is cooled and humidified, then the smoke dust with slightly reduced temperature enters the interior of the dust removal pool 6 through the dust collection pipeline 4 under the action of the strong dust collector 5, and the collected smoke dust is decomposed and secondarily cooled in the interior of the dust removal pool 6, so far, harmful smoke dust along with the molten iron is effectively removed and decomposed.

In summary, the following steps: the blast furnace taphole smoke and dust removing device is characterized in that the dust removing cover 1 is integrally fixed on the upper part of a taphole through the matching arrangement of the dust removing cover 1 and the arc-shaped spraying gun 3, so that the collection of the smoke and dust at the taphole 8 is facilitated, the atomizing nozzle 13 is utilized to spray water mist into the dust removing groove 2 of the dust removing cover 1 in the using process, the effects of collecting the smoke and dust and cooling the smoke and dust are achieved, the smoke and dust is not easy to generate raise dust after being humidified and cooled by the water mist, the secondary diffusion of the smoke and dust is prevented, meanwhile, the smoke and dust after slightly reducing the temperature also reduces the high-temperature damage to the dust removing device, the structure is simple, the effect is obvious, the normal work of the taphole is not influenced by the whole arrangement, the smoke and dust removing device at the taphole is arranged through the matching arrangement of the dust collecting pipeline 4 and the dust removing pool 6, and the smoke and dust can, therefore, the effects of decomposing harmful substances in the smoke and cooling the smoke and dust again are achieved, the smoke and dust is further treated in the dust removal tank 6, the arrangement is different from direct emission in the air, the purpose of environmental protection is achieved, and the dual effects of removing and treating the smoke and dust are achieved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a blast furnace taphole department smoke and dust remove device, includes suction hood (1), its characterized in that: the whole of suction hood (1) is the halfcylinder, dust removal groove (2) have been seted up to the inside of suction hood (1), the equal fixedly connected with convex spray gun (3) of dust removal groove (2) left and right sides face, one side fixedly connected with dust absorption pipeline (4) of suction hood (1), the inside fixedly connected with powerful dust catcher (5) of dust absorption pipeline (4), the one end fixedly connected with dust removal pond (6) of dust absorption pipeline (4).

2. The blast furnace taphole smoke removing device according to claim 1, characterized in that: one side of the dust hood (1) is fixedly connected with an auxiliary supporting block (7), and one end of the auxiliary supporting block (7) is fixedly connected to the surface of a furnace wall (9) at the upper part of the taphole (8).

3. The blast furnace taphole smoke removing device according to claim 1, characterized in that: the upper part of the dust hood (1) is fixedly connected with a communicating vessel (10), and three side surfaces of the communicating vessel (10) are fixedly connected with water pipes (11).

4. The blast furnace taphole smoke removing device according to claim 3, characterized in that: one end of the water pipe (11) is fixedly connected with the circular arc-shaped spray gun (3), and the other end of the water pipe (11) is fixedly connected with the water tank (12).

5. The blast furnace taphole smoke removing device according to claim 1, characterized in that: the number of the circular arc-shaped spray guns (3) is two, and the surface of each of the two circular arc-shaped spray guns (3) is provided with an atomizing nozzle (13).

6. The blast furnace taphole smoke removing device according to claim 1, characterized in that: the upper surface of the dust removal tank (6) is fixedly connected with a water tank (12), and the output end of the powerful dust collector (5) is inserted into the dust removal tank (6).