CN213067116U - Anti-blocking device for spray gun of smelting reduction furnace - Google Patents
Anti-blocking device for spray gun of smelting reduction furnace Download PDFInfo
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- CN213067116U CN213067116U CN202021691604.2U CN202021691604U CN213067116U CN 213067116 U CN213067116 U CN 213067116U CN 202021691604 U CN202021691604 U CN 202021691604U CN 213067116 U CN213067116 U CN 213067116U
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- lance
- reduction furnace
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Abstract
The application relates to an anti-blocking device for a spray gun of a smelting reduction furnace, which belongs to the field of smelting reduction furnaces, wherein the spray gun is provided with an air inlet end and an air outlet end, the air inlet end of the spray gun is connected with a material injection pipeline, the anti-blocking device is connected with the material injection pipeline, and the anti-blocking device comprises an air source; one end of the gas transmission pipeline is connected with a gas source, and the other end of the gas transmission pipeline is connected with the material blowing pipeline; the switch valve is arranged on the gas pipeline; the gas transmission pipeline is connected with the gas inlet of the spray gun, and the gas transmission pipeline can inject pressurized gas when the spray gun is blocked, so that the spray gun is dredged, the spray gun is guaranteed to convey materials in time, production interruption caused by blockage of the spray gun is avoided, and economic loss is increased.
Description
Technical Field
The utility model relates to a smelting reduction furnace technical field especially relates to a smelting reduction furnace spray gun is with preventing stifled device.
Background
The smelting reduction furnace mainly takes ore iron powder and coal powder as raw materials, and utilizes an injection system and a spray gun to inject the powdery material into a furnace body so as to realize oxidation-reduction reaction. In the smelting reduction furnace, a nozzle of the spray gun is mainly inserted into the slag of the corresponding furnace body, and then powder materials are sprayed into the furnace body. However, in the normal production process of the smelting reduction furnace, the temperature may drop suddenly due to poor furnace body adjustment, and once the temperature drops suddenly, slag in the furnace body is agglomerated, so that a spray gun is blocked; in addition, in the normal production process, the viscosity of the material is increased due to the material proportion, so that the spray gun is blocked. When the smelting reduction furnace is stopped for production and maintenance, materials are not blown into the spray gun at the moment, the spray gun is easy to be blocked by molten slag in the furnace body, once the spray gun is blocked, the materials are stopped from entering the smelting reduction furnace for normal production, and economic loss is caused.
SUMMERY OF THE UTILITY MODEL
This application is for solving current smelting reduction furnace's spray gun because the slag in the multiple reason leads to the furnace body takes place to agglomerate or because the reason of the ratio of powdery material, causes the problem of blockking up the spray gun, this application designs a smelting reduction furnace spray gun with preventing stifled device, and it specifically is:
the utility model provides a melting reduction furnace spray gun is with preventing stifled device, spray gun have air inlet end and gas outlet end, and the air inlet end of spray gun is connected with material jetting pipeline, prevents stifled device and material jetting pipeline connection, prevents that stifled device includes:
a gas source;
one end of the gas transmission pipeline is connected with a gas source, and the other end of the gas transmission pipeline is connected with the material blowing pipeline;
the switch valve is arranged on the gas pipeline.
Preferably, the gas transmission pipeline, the material injection pipeline and the gun body of the spray gun are in a straight line.
Preferably, the gas transmission pipeline comprises:
the first gas transmission pipeline, the material injection pipeline and the gun body of the spray gun are in the same straight line, and a plugging cover is detachably arranged at one end of the first gas transmission pipeline, which is far away from the gun body of the spray gun;
and the second gas transmission pipeline and the first gas transmission pipeline are arranged at an included angle.
Preferably, the blocking cover is a blocking flange.
Preferably, the method further comprises the following steps:
the first pressure detection piece is arranged on the gun body of the spray gun.
Preferably, the first pressure detection element is a pressure transmitter.
Preferably, the method further comprises the following steps:
and the flow regulating valve is arranged on the gas transmission pipeline.
Preferably, the method further comprises the following steps:
the expansion joint is arranged between the spray gun and the material injection pipeline.
Preferably, the method further comprises the following steps:
the venturi accelerating tube is connected between the spray gun and the expansion joint.
The utility model discloses a gas transmission pipeline is connected at the air inlet of spray gun, and this gas transmission pipeline can dash into when the spray gun blocks up and have pressure gas, dredges the spray gun, guarantees that the spray gun in time is defeated the material, avoids causing production to break off, increase economic loss because of the spray gun blocks up.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, the device comprises a gas source 1, a gas source 2, a flow regulating valve 3, a switch valve 4, a blocking cover 5, a gas transmission pipeline 501, a second gas transmission pipeline 502, a first gas transmission pipeline 6, a material blowing pipeline 7, an expansion joint 8, a Venturi accelerating tube 9, a first pressure detecting part 10 and a spray gun.
Detailed Description
In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments with reference to the accompanying drawings.
In addition, in the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1, in the anti-blocking device for the lance of the smelting reduction furnace, the lance 10 has an air inlet end and an air outlet end, and the air outlet end of the lance 10 extends into a slag layer of the smelting reduction furnace, the lance 10 in the present application adopts a lance in the prior art, and the structure thereof is mature in the prior art, so the structure thereof is not described in detail. The air inlet end is connected with material jetting pipeline 6, and this material jetting pipeline 6 extends one section distance back to one side along the direction of the 10 rifle bodies of spray gun, and this section material jetting pipeline 6 distance is very little, prevents that stifled device is connected with this section material jetting pipeline 6, prevents that stifled device includes: the device comprises an air source 1, an air transmission pipeline 5 and a switch valve 3, wherein one end of the air transmission pipeline 5 is connected with the air source 1, the air source 1 can adopt the mode that the existing air tank is provided with an air pump, the air source 1 mainly adopts high-pressure nitrogen or air, the air pressure is 0.5-2.0Mpa, the other end of the air transmission pipeline 5 is connected with a material blowing pipeline 6, and the switch valve 3 is arranged on the air transmission pipeline 5 and used for controlling the on-off of the air transmission pipeline 5.
When the spray gun 10 is blocked or has a blocking trend, the switch valve 3 is opened, the high-pressure air source 1 enters the spray gun 10 through the air transmission pipeline 5 and the material injection pipeline 6, and the spray gun 10 is dredged by the high-pressure air.
Furthermore, the gas transmission pipeline 5, the material injection pipeline 6 and the gun body of the spray gun 10 are in the same straight line, so that the gas transmission pipeline 5 can ensure that pressure gas is blown into the spray gun 10 from the front side, the pressure drop of the pressure gas is reduced, and the dredging of the spray gun 10 is facilitated.
Further, gas transmission pipeline 5 includes first gas transmission pipeline 502 and second gas transmission pipeline 501, first gas transmission pipeline 502, the rifle body of material jetting pipeline 6 and spray gun 10 is on a straight line, first gas transmission pipeline 502 can be dismantled in the one end of keeping away from the rifle body of spray gun 10 and be equipped with blocking lid 4, blocking lid 4 can, second gas transmission pipeline 501 and first gas transmission pipeline 502 are the contained angle setting simultaneously, blocking lid 4 can be when the high-pressure gas mediation spray gun 10 is inoperative, when taking place serious jam promptly, open blocking lid 4, use drilling machine or other equipment to clear up the inside plug of spray gun 10.
Furthermore, the plugging cover 4 is a plugging flange which is reliable in connection, strong in bearing capacity and convenient to detach.
Further, still include first pressure detection spare 9, first pressure detection spare 9 sets up on the rifle body of spray gun 10 for detect the pressure in the spray gun 10, when spray gun 10 takes place to block up, lead to the internal pressure increase of spray gun 10, open on-off valve 3 dredges spray gun 10 this moment.
Furthermore, the first pressure detection part 9 is a pressure transmitter, and the pressure transmitter has high pressure detection precision.
Of course, the first pressure detecting element 9 may also be a pressure gauge if the requirements are not very demanding.
Further, still include flow control valve 2, flow control valve 2 sets up in gas transmission pipeline 5, and flow control valve 2 is used for adjusting the gas quantity that air supply 1 got into spray gun 10, can adjust flow control valve 2's aperture according to the size of the pressure that pressure transmitter detected, and then adapts to the different degree that spray gun 10 blockked up.
Further, in order to generate the excessive compression between the material injection duct 6 and the lance 10 due to the increase of the internal air pressure when the lance 10 is clogged, the expansion joint 7 is provided between the lance 10 and the material injection duct 6, and the expansion joint 7 can compensate the deformation caused by the increase of the air pressure.
Further, because above-mentioned second gas-supply pipe and first gas-supply pipe contained angle set up for resistance increase when the second gas-supply pipe gets into the gas in the first gas-supply pipe, and then make the gas velocity of flow that gets into in the second gas-supply pipe reduce, in order to improve the velocity of flow, strengthens the impact of air current to the plug in the spray gun 10, is connected venturi accelerating tube 8 between spray gun 10 and expansion joint 7, has improved spray gun 10 mediation ability.
The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.
The parts of the present invention not described in detail are the known techniques of those skilled in the art.
Claims (9)
1. The utility model provides a melting reduction furnace spray gun is with preventing stifled device, the spray gun has air inlet end and gas outlet end, the air inlet end of spray gun is connected with material jetting pipeline, prevent stifled device with material jetting pipe connection, its characterized in that, prevent stifled device and include:
a gas source;
one end of the gas transmission pipeline is connected with the gas source, and the other end of the gas transmission pipeline is connected with the material blowing pipeline;
and the switch valve is arranged on the gas transmission pipeline.
2. The blockage preventing apparatus for the lance of a smelting reduction furnace according to claim 1, wherein the gas transmission pipe, the material injection pipe and the lance body of the lance are aligned.
3. The anti-clogging device for the lance of the smelting reduction furnace according to claim 1, wherein the gas transmission pipe includes:
the first gas transmission pipeline, the material injection pipeline and the gun body of the spray gun are arranged on the same straight line, and a blocking cover is detachably arranged at one end of the first gas transmission pipeline, which is far away from the gun body of the spray gun;
and the second gas transmission pipeline and the first gas transmission pipeline are arranged at an included angle.
4. The anti-clogging device for the lance of the smelting reduction furnace according to claim 3, wherein the plugging cover is a plugging flange.
5. The blockage preventing device for the lance of the smelting reduction furnace according to claim 1, further comprising:
the first pressure detection piece is arranged on the gun body of the spray gun.
6. The anti-clogging device for the lance of the smelting reduction furnace according to claim 5, wherein the first pressure detecting member is a pressure transmitter.
7. The anti-clogging device for the lance of a smelting reduction furnace according to claim 5 or 6, characterized by further comprising:
and the flow regulating valve is arranged on the gas transmission pipeline.
8. The blockage preventing device for the lance of the smelting reduction furnace according to claim 1, further comprising:
the expansion joint is arranged between the spray gun and the material injection pipeline.
9. The anti-clogging device for the lance of the smelting reduction furnace according to claim 8, further comprising:
a venturi accelerating tube connected between the lance and the expansion joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021691604.2U CN213067116U (en) | 2020-08-13 | 2020-08-13 | Anti-blocking device for spray gun of smelting reduction furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021691604.2U CN213067116U (en) | 2020-08-13 | 2020-08-13 | Anti-blocking device for spray gun of smelting reduction furnace |
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| Publication Number | Publication Date |
|---|---|
| CN213067116U true CN213067116U (en) | 2021-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021691604.2U Active CN213067116U (en) | 2020-08-13 | 2020-08-13 | Anti-blocking device for spray gun of smelting reduction furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114992626A (en) * | 2022-04-26 | 2022-09-02 | 浙江伊诺环保科技股份有限公司 | Secondary injection combustion device for capturing and recovering fly ash |
-
2020
- 2020-08-13 CN CN202021691604.2U patent/CN213067116U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114992626A (en) * | 2022-04-26 | 2022-09-02 | 浙江伊诺环保科技股份有限公司 | Secondary injection combustion device for capturing and recovering fly ash |
| CN114992626B (en) * | 2022-04-26 | 2024-05-24 | 浙江伊诺环保集团股份有限公司 | A secondary jetting burner for fly ash catches recovery |
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