CN216898418U

CN216898418U - Air and oxygen supplying device

Info

Publication number: CN216898418U
Application number: CN202122862654.3U
Authority: CN
Inventors: 袁俊智; 王新民; 吴稳柱; 孙殿强; 蹇冬冬; 吕铁英; 伍松滨; 崔国强
Original assignee: Huading Copper Development Co ltd
Current assignee: Huading Copper Development Co ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-07-05
Anticipated expiration: 2031-11-22

Abstract

The utility model provides an air and oxygen supplementing device, which belongs to the technical field of copper smelting and comprises a smoke exhaust assembly and a decoking assembly. The smoke exhaust assembly comprises a bottom blowing furnace and a flue, wherein the flue is positioned at a smoke outlet of the bottom blowing furnace and is of a membrane type water-cooled wall structure. Decoking subassembly includes fan, gas storage package and pipeline, and wherein, the fan has air intake and air outlet, and air intake and air outlet all are equipped with the governing valve of adjusting the flow, and the gas storage package communicates in the air outlet, and the pipeline communicates in gas storage package and flue, and when blowing, the wind energy that the pipeline blew off can form the air curtain at the front end of membrane type water-cooling wall. The device can accelerate the circulation of local air in the flue, and through burning acceleration and local cooling, thereby the viscidity of coking in the flue reduces and reaches the purpose that drops naturally, finally because the coking is connected and is formed wholly great shortening the decoking time and artificial working strength that drop.

Description

Air and oxygen supplying device

Technical Field

The utility model relates to the technical field of copper smelting, in particular to a wind and oxygen supplementing device.

Background

The existing metallurgical furnace is connected with a waste heat boiler, and the flue gas is firstly collected by the waste heat boiler and then is conveyed to an acid making workshop. Oxides of metals such as lead, zinc and the like in a molten state exist in the flue gas, and also include compounds such as silicate, sulfate and the like, and the oxides collide with the waste heat boiler in the process of moving along with the flue gas, and the oxides are bonded on the wall of the waste heat boiler due to the lower relative temperature of the wall of the waste heat boiler and are gradually increased to cause the occurrence of a coking phenomenon.

When coking is formed in the rising flue of the waste heat boiler, the coking is increased, the sectional area of the waste heat boiler is reduced, other resistance is increased, the smoke gas flows unsmoothly, and the channel in the waste heat boiler is almost blocked when the coking is the most serious, the smoke gas is difficult to pass through, and the tube explosion of a water wall is possibly caused, so that the production stop is finally caused.

SUMMERY OF THE UTILITY MODEL

In order to make up for the defects, the utility model provides an air and oxygen supplementing device, aiming at solving the problem of coking at an uptake flue.

The utility model is realized by the following steps: the utility model provides an air supplementing and oxygen supplementing device which comprises a smoke exhaust assembly and a decoking assembly.

The smoke exhaust assembly comprises a bottom blowing furnace and a flue, wherein the flue is positioned at a smoke outlet of the bottom blowing furnace and is of a membrane type water-cooled wall structure.

The decoking assembly comprises a fan, a gas storage bag and a pipeline, wherein the fan is provided with an air inlet and an air outlet, the air inlet and the air outlet are respectively provided with a regulating valve for regulating flow, the gas storage bag is communicated with the air outlet, the pipeline is communicated with the gas storage bag and the flue, and when wind blows, the wind energy blown out by the pipeline can be formed at the front end of the membrane water-cooled wall to form a wind curtain.

In an embodiment of the present invention, the air outlet is provided with a compensator, and the compensator is located between the adjusting valve and the fan.

In one embodiment of the utility model, the decoking assembly further comprises a support configured to support and secure the decoking assembly.

In one embodiment of the utility model, the duct has a nozzle at one end of the flue.

In an embodiment of the utility model, the plurality of pipes are provided and respectively communicated with the gas storage bag and the flue.

In one embodiment of the utility model, the duct is connected to the flue by a seamless connection.

The utility model has the beneficial effects that: when the air supplementing and oxygen supplementing device is used, the fan is started, air is input from the air inlet, the air flow entering the air supplementing and oxygen supplementing device is adjusted through the adjusting valve of the air inlet, then the air is pressurized and output by the fan, and the flow of the compressed air is adjusted by adjusting an adjusting valve at the air outlet according to the actual situation, then the air flow is stabilized through the air storage bag, and then the air flow in the air storage bag can be blown out through a pipeline, so that the air flow forms an air curtain at the front end of the membrane water wall, thereby accelerating the local air circulation in the flue, accelerating the combustion, locally cooling, reducing the viscosity of the coke after cooling and full combustion to achieve the purpose of natural falling off, the device can effectively prevent the molten state substance contained in the flue gas of the bottom blowing furnace from forming coking on the membrane water-cooled wall.

And then the device is effectual to avoid the flue coking the thickest position coking to connect, and then can make in the flue coking can wholly drop, great shortening decoking time and artificial working strength.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic front view provided by an embodiment of the present invention;

FIG. 2 is an exploded view of an embodiment of the present invention;

FIG. 3 is a schematic structural view of a decoking assembly according to an embodiment of the present invention.

In the figure: 100-a smoke evacuation assembly; 110-bottom blowing furnace; 120-flue; 121-membrane wall cooling; 200-a decoking assembly; 210-a fan; 211-air intake; 2111-regulating valve; 212-an air outlet; 2121-a compensator; 220-gas storage bag; 230-a pipeline; 231-a nozzle; 300-support member.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1, the present invention provides a technical solution: an air and oxygen supplementing device comprises a smoke exhaust assembly 100 and a decoking assembly 200.

Referring to fig. 1, the smoke exhaust assembly 100 mainly circulates and discharges smoke, and then the exhaust-heat boiler can recover heat in the smoke, and the decoking assembly 200 is mainly used for cleaning the thickest coking position in the flue 120, so that the coking in the flue 120 is not connected, and the whole coking can be fallen. Thereby effectually avoid the boiler in service the coking too thick can make the water wall pipe in the heat exchange surface, convection tube, because of overheated emergence pipeline bursts, high temperature boiler water leaks, causes the unable normal operating of boiler to and the coking is too thick makes flue 120 and convection current district flue gas circulation not smooth, direct influence electric dust collection's life when the cooling chamber convection current district can't effectively cool down the flue gas and can't effectively filter the particulate matter in the flue gas.

Referring to fig. 1 and 2, the smoke evacuation assembly 100 includes a bottom-blowing furnace 110 and a flue 120, the flue 120 is located at a smoke outlet of the bottom-blowing furnace 110, and the flue 120 is a membrane wall 121 structure. Generally when end-blown converter 110 production, exhaust-heat boiler is arranged in retrieving the heat in the flue gas, and then can absorb the flue gas that end-blown converter 110 produced through flue 120 in the exhaust-heat boiler, at this in-process, form the coking very easily in the flue 120, and then the coking too much can lead to the exhaust-heat boiler sectional area to diminish, other resistance increases, the flue gas flows unsmoothly, can make exhaust-heat boiler inner channel be close to stifled dead when most serious, the flue gas is difficult to pass through, it is also possible to cause membrane wall 121 tube explosion, finally lead to the shut down.

Referring to fig. 1, 2 and 3, the decoking assembly 200 includes a blower 210, a gas storage pack 220 and a pipeline 230, wherein the blower 210 has an inlet 211 and an outlet 212, the inlet 211 and the outlet 212 are both provided with an adjusting valve 2111 for adjusting the flow rate, the outlet 212 is provided with a compensator 2121, the compensator 2121 is located between the adjusting valve 2111 and the blower 210, the compensator 2121 can absorb the axial, transverse and angular cold and heat deformation of the pipeline 230 and the vibration of the device, thereby improving the working efficiency of the device and prolonging the service life. The gas storage bag 220 is communicated with the air outlet 212, the pipeline 230 is communicated with the gas storage bag 220 and the flue 120 through seamless, the plurality of pipelines 230 are arranged and are respectively communicated with the gas storage bag 220 and the flue 120, one end, located at the flue 120, of the pipeline 230 is provided with a nozzle 231, and blown compressed air can be more stable through the nozzle 231. And then when blowing, the wind that pipeline 230 blew out can form the air curtain at the front end of membrane wall 121, and then can make local air circulation accelerate in the flue 120, through burning with higher speed and local cooling for the viscidity of coking in the flue 120 reduces and reaches the purpose that drops naturally, finally because the coking is connected not to get up and is formed whole great shortening decoking time and artificial working strength that drops. The apparatus further includes a support 300, wherein the support 300 is configured to support and secure the decoking assembly 200, and further assist in stabilizing the decoking assembly 200.

Specifically, the working principle of the air and oxygen supplementing device is as follows: when the operation is needed, the fan 210 is started, and then air is input from the air inlet 211, the flow rate of the entering air is adjusted through the adjusting valve 2111 of the air inlet 211, then the air is pressurized and output by the fan 210, and further the axial, transverse and angular cold and heat deformation of the pipeline 230 and the vibration of the equipment can be absorbed through the compensator 2121, further, the flow rate of the compressed air is adjusted through the adjusting valve 2111 at the air outlet 212 according to the actual situation, then the compressed air is stabilized through the air storage bag 220, and further the flow rate of the air in the air storage bag 220 can be blown out through the pipeline 230, so that the air flow forms an air curtain at the front end of the membrane water-cooling wall 121, and further the local air circulation in the flue 120 can be accelerated, not only the combustion can be accelerated, but also the local cooling can be realized, and the viscosity of the coke after the cooling and the sufficient combustion is reduced, thereby achieving the purpose of natural falling, therefore, the device can effectively prevent the molten state substances contained in the flue gas of the bottom-blowing furnace 110 from forming coke on the membrane water wall 121.

It should be noted that the specific model specifications of the fan 210, the regulating valve 2111 and the compensator 2121 need to be determined by model selection according to the actual specification of the device, and the specific model selection calculation method adopts the prior art in the field, so detailed description is omitted.

The power supply of the fan 210 and its principle will be clear to a person skilled in the art and will not be described in detail here.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wind and oxygen supplying device is characterized by comprising

The smoke exhaust assembly (100) comprises a bottom-blowing furnace (110) and a flue (120), wherein the flue (120) is positioned at a smoke outlet of the bottom-blowing furnace (110), and the flue (120) is of a membrane water-cooled wall (121) structure;

decoking subassembly (200), decoking subassembly (200) includes fan (210), gas storage package (220) and pipeline (230), wherein, fan (210) have air intake (211) and air outlet (212), air intake (211) with air outlet (212) all are equipped with regulation valve (2111) of adjusting the flow, gas storage package (220) communicate in air outlet (212), pipeline (230) communicate in gas storage package (220) with flue (120), when blowing wind, the wind that pipeline (230) blew out can be in the front end of membrane water-cooling wall (121) forms the air curtain.

2. An air supplementing and oxygen supplementing device according to claim 1, wherein said air outlet (212) is provided with a compensator (2121), and said compensator (2121) is located between said regulating valve (2111) and said fan (210).

3. An air supplementing and oxygen supplementing device according to claim 1, further comprising a support member (300), wherein said support member (300) is configured to support and fix said decoking assembly (200).

4. An air and oxygen supplementing device according to claim 1, wherein said duct (230) has a nozzle (231) at one end of said flue (120).

5. An air supplementing and oxygen supplementing device according to claim 1, wherein a plurality of said pipes (230) are provided and are respectively communicated with said air storage bag (220) and said flue (120).

6. An air and oxygen supplementing device according to claim 1, characterized in that said duct (230) is connected to said flue (120) by seamless connection.