CN214486131U - Novel defogging of blast furnace gas desulfurizing tower device - Google Patents
Novel defogging of blast furnace gas desulfurizing tower device Download PDFInfo
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- CN214486131U CN214486131U CN202120518434.6U CN202120518434U CN214486131U CN 214486131 U CN214486131 U CN 214486131U CN 202120518434 U CN202120518434 U CN 202120518434U CN 214486131 U CN214486131 U CN 214486131U
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- demisting
- blast furnace
- furnace gas
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Abstract
The utility model discloses a novel demisting device of a blast furnace gas desulfurization tower, which relates to the technical field of blast furnace gas desulfurization and aims to solve the problem that the demisting device increases the resistance in the tower and influences the desulfurization effect of the blast furnace gas; the utility model comprises an air outlet pipe arranged at the air outlet on the upper part of the tower body and also comprises a demisting material, wherein the demisting material is obliquely arranged in the air outlet pipe, and the upper end of the demisting material is closer to the tower body than the lower end of the demisting material; the edge of the demisting material is contacted with the inner wall of the air outlet pipe, and the included angle between the demisting material and the vertical direction is 0-90 degrees; the lower end of the air outlet pipe is provided with a liquid collecting funnel, the liquid collecting funnel is positioned between the lower end of the demisting material and the tower body, and the lower end of the liquid collecting funnel is provided with a liquid outlet for discharging liquid; the utility model discloses be favorable to reducing the resistance, improve blast furnace gas desulfurization efficiency.
Description
Technical Field
The utility model relates to a blast furnace gas desulfurization technical field specifically is a novel defogging of blast furnace gas desulfurizing tower device.
Background
The majority of the sulfur in the blast furnace gas is expressed as H2S is present in the form of H2S is converted into SO with the combustion of coal gas2Harming the living environment of people and aiming at the SO generated after the combustion of the byproduct blast furnace gas of the iron and steel enterprises2The problem of exceeding standard is that the tail end treatment mode is adopted in the past, namely the flue gas after the blast furnace gas is combusted is desulfurized. With the adjustment of national industrial policy, SO is treated2The emission requirement is greatly improved, and the tail end treatment can not meet the emission requirement, so that the iron and steel enterprises need to realize the fine desulfurization of blast furnace gas from the source, and H in the producer gas2The degree of removal of S has become an important indicator.
The blast furnace gas source fine desulfurization method mainly comprises a dry method desulfurization method and a wet method desulfurization method, wherein the main equipment is a desulfurization tower; however, unlike the well-developed flue gas desulfurization, the blast furnace gas has the particularity of large flow, low pressure, complex composition, and flammability and explosiveness, so the requirement of the blast furnace gas on the desulfurization tower is far higher than that of the common flue gas desulfurization, and the research on the blast furnace gas desulfurization tower is still in the beginning stage at present.
The publication number is CN103706237B, the name is the invention patent of a flue gas desulfurization system, wherein a common flue gas desulfurization tower is disclosed, and as can be seen from the specification and the attached drawings, a plurality of layers of gas distribution devices, liquid distribution devices, spraying devices, demisting devices, washing devices and the like are arranged in the flue gas desulfurization tower, the devices divide the whole tower body into a washing section, an absorption section and a recovery section, can better realize flue gas desulfurization, however, when the desulfurizing tower is used for desulfurizing blast furnace gas in actual production, various problems occur, the gas flow in the tower is not smooth, the resistance is large, and the tower is easy to block, so that the pressure drop of the whole gas supply gas circuit is large, the normal production can not be realized, in contrast, some manufacturers adopt air pressurization, so that although the purpose of passage is achieved, the combustible gas and particles in the coal gas are mixed with the air to generate deflagration, and serious production accidents are caused;
in contrast, the industry has discussed and decided to adopt an empty tower spraying mode which is abandoned at the starting stage of flue gas desulfurization again, namely a tower without filler, so as to solve the problems of large resistance and easy blockage in the tower; the existing desulfurizing towers are all provided with demisters on the top of the tower, which can be tubular, net-shaped, layered, folding, vortex-type and the like, and the publication number is CN111420544A, which is named as an invention patent application of a hydrogen peroxide low-temperature denitration device and a denitration process, wherein the invention discloses a desulfurizing device with a demisting net on the top of the tower, the demisting net has wide application range and can demist efficiently, however, if the desulfurizing device is directly applied to blast furnace gas desulfurization, the gas path area in the tower can be reduced, condensed liquid drops after demisting can be firstly gathered on the demisters to further block the gas path, and the condensed spray liquid drops after demisting directly fall from the tower to a liquid collecting tank at the bottom of the tower, the liquid drops lose part of desulfurizing capacity after being used, the liquid drops continuously fall through the tower to be whitish and occupy the space in the tower, even dilute the spray liquid, which can cause the resistance in the tower to be increased, affecting the desulfurization effect of blast furnace gas.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel defogging of blast furnace gas desulfurizing tower device to solve the defogging device and increase the interior resistance of tower, influence the problem of blast furnace gas desulfurization effect.
In order to achieve the above object, the utility model provides a following technical scheme: a novel demisting device of a blast furnace gas desulfurization tower comprises an air outlet pipe arranged at an air outlet at the upper part of a tower body and demisting materials, wherein the demisting materials are obliquely arranged in the air outlet pipe, and the upper end of the demisting materials is closer to the tower body than the lower end of the demisting materials; the edge of the demisting material is contacted with the inner wall of the air outlet pipe, and the included angle between the demisting material and the vertical direction is 0-90 degrees; the lower end of the air outlet pipe is provided with a liquid collecting funnel, the liquid collecting funnel is positioned between the lower end of the demisting material and the tower body, and the lower end of the liquid collecting funnel is provided with a liquid outlet for discharging liquid; the both sides of the upper end of the demisting material position of the air outlet pipe are provided with mounting openings, the upper ends of the two mounting openings are provided with flanges, and the two mounting openings can be detachably and fixedly connected.
Preferably, a liquid outlet at the lower end of the liquid collecting funnel is connected with a return pipe, and the lower end of the return pipe is communicated to a liquid collecting tank at the lower end in the tower body.
Preferably, the two sides of the demisting material are respectively provided with a layer of steel wire mesh for limiting and mounting.
Preferably, the diameter of the mesh of the steel wire mesh is greater than or equal to 10 mm.
Preferably, the tower body and the air outlet pipe are positioned at the upper end of the demisting material and are provided with an overhaul manhole.
Preferably, the defogging material is angled at 60 ° from the vertical.
Compared with the prior art, the beneficial effects of the utility model are that:
1. this novel defogging device of blast furnace gas desulfurizing tower sets up in the tower body outside, can not block the gas circuit in the tower body, is favorable to reducing the interior resistance of tower.
2. This novel defogging device of blast furnace gas desulfurizing tower, the collection liquid and the backward flow of defogging all set up outside the tower, and the defogging sprays the liquid droplet after condensing no longer occupies the tower inner space, does benefit to and reduces the tower internal resistance, can not lead to also spraying the liquid and diluted, is favorable to improving and sprays liquid desulfurization efficiency.
3. This novel defogging device of blast furnace gas desulfurizing tower, defogging material slope installation do benefit to the spray liquid droplet that condenses along defogging material border or outlet duct inner wall landing, can avoid the liquid droplet to receive to block up defogging material gas circuit after the air current promotes, are favorable to reducing the resistance.
4. This novel defogging device of blast furnace gas desulfurizing tower is equipped with the maintenance manhole, easy access, washing and maintenance in defogging material upper end department.
Drawings
FIG. 1 is a schematic view of the structure and position relationship of the present invention;
fig. 2 is a schematic front view of an embodiment of the air outlet pipe of the present invention;
fig. 3 is a schematic top view of an embodiment of the outlet duct of the present invention.
In the figure: 1. an air outlet pipe; 2. steel wire mesh; 3. a defogging material; 4. a liquid collecting funnel; 5. a return pipe; 6. and (4) overhauling manholes.
Detailed Description
As shown in fig. 1, a novel demisting device for a blast furnace gas desulfurization tower comprises an air outlet pipe 1 arranged at an air outlet at the upper part of a tower body, and also comprises demisting materials 3, wherein the demisting materials 3 are obliquely arranged in the air outlet pipe 1, and the upper end of the demisting materials is closer to the tower body than the lower end of the demisting materials; an inspection manhole 6 is arranged at the upper end of the demisting material 3 of the tower body and the air outlet pipe 1, so that the maintenance, the cleaning and the maintenance are convenient; the edge of the demisting material 3 is contacted with the inner wall of the air outlet pipe 1 everywhere, for convenience of installation and maintenance, two sides of the demisting material 3 are respectively provided with a layer of steel wire mesh 2 for limiting and installation, the installation is more convenient after the steel wire mesh 2 is installed, the demisting material 3 can be cleaned and maintained only by opening the maintenance manhole 6, the diameter of meshes of the steel wire mesh 2 is not smaller than 10mm, if the diameter is too small, the resistance is increased, the steel wire mesh 2 also has certain demisting and guiding functions, therefore, the meshes are not too large, otherwise, the demisting material can be limited, but loses other functions; the included angle between the demisting material 3 and the vertical direction is 0-90 degrees, more specifically 30-60 degrees, as shown in fig. 1, preferably 60 degrees, and at the moment, the demisting effect, the liquid drop sliding speed and the liquid drop dropping speed are all good; the lower end of the gas outlet pipe 1 is provided with a liquid collecting funnel 4, the liquid collecting funnel 4 is positioned between the lower end of the demisting material 3 and the tower body, the lower end of the liquid collecting funnel 4 is provided with a liquid outlet for discharging liquid, in order to facilitate recycling, the liquid outlet at the lower end of the liquid collecting funnel 4 can be connected with a return pipe 5, and the lower end of the return pipe 5 is communicated to a liquid collecting tank at the lower end in the tower body; as shown in fig. 2 and 3, the upper end both sides that outlet duct 1 was equipped with defogging material 3 department are equipped with the installing port, two installing port upper ends are equipped with the flange and the two can dismantle fixed connection, the installing port can be opened, wire net 2 can welded fastening with 1 inner wall the latter half of outlet duct, after opening the installing port like this, can take out defogging material 3, be more convenient for clear up and change, for sealed reliable, the installing port inboard is equipped with the sealing washer, rely on to compress tightly sealed, in order to further avoid gas leakage, can close and paste installing port outside gap with sealing material after the installing port at every turn.
The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
The parts of the present invention not described in detail are the known techniques of those skilled in the art.
Claims (6)
1. The utility model provides a novel defogging of blast furnace gas desulfurizing tower device, is including installing outlet duct (1) in tower body upper portion gas outlet department, its characterized in that: the tower also comprises a demisting material (3), wherein the demisting material (3) is obliquely arranged in the air outlet pipe (1), and the upper end of the demisting material is closer to the tower body than the lower end of the demisting material; the edges of the demisting materials (3) are all contacted with the inner wall of the air outlet pipe (1), and the included angle between the demisting materials (3) and the vertical direction is 0-90 degrees; the lower end of the air outlet pipe (1) is provided with a liquid collecting funnel (4), the liquid collecting funnel (4) is positioned between the lower end of the demisting material (3) and the tower body, and the lower end of the liquid collecting funnel (4) is provided with a liquid outlet for discharging liquid; the two sides of the upper end of the air outlet pipe (1) where the demisting material (3) is arranged are provided with mounting openings, and the upper ends of the two mounting openings are provided with flanges which are detachably and fixedly connected.
2. The novel demisting device for the blast furnace gas desulfurization tower according to claim 1, characterized in that: and a liquid outlet at the lower end of the liquid collecting funnel (4) is connected with a return pipe (5), and the lower end of the return pipe (5) is communicated to a liquid collecting tank at the lower end in the tower body.
3. The novel demisting device for the blast furnace gas desulfurization tower according to claim 1, characterized in that: and two sides of the demisting material (3) are respectively provided with a layer of steel wire mesh (2) for limiting and mounting.
4. The novel demisting device for the blast furnace gas desulfurization tower according to claim 3, characterized in that: the diameter of meshes of the steel wire mesh (2) is larger than or equal to 10 mm.
5. The novel demisting device for the blast furnace gas desulfurization tower according to claim 1, characterized in that: the tower body and the air outlet pipe (1) are positioned at the upper end of the demisting material (3) and are provided with an overhaul manhole (6).
6. The novel demisting device for the blast furnace gas desulfurization tower according to claim 1, characterized in that: the included angle between the demisting material (3) and the vertical direction is 60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120518434.6U CN214486131U (en) | 2021-03-10 | 2021-03-10 | Novel defogging of blast furnace gas desulfurizing tower device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120518434.6U CN214486131U (en) | 2021-03-10 | 2021-03-10 | Novel defogging of blast furnace gas desulfurizing tower device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214486131U true CN214486131U (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120518434.6U Active CN214486131U (en) | 2021-03-10 | 2021-03-10 | Novel defogging of blast furnace gas desulfurizing tower device |
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| Country | Link |
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| CN (1) | CN214486131U (en) |
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2021
- 2021-03-10 CN CN202120518434.6U patent/CN214486131U/en active Active
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