CN210595957U - Spray gun mounting structure and blast furnace gas deacidification device - Google Patents
Spray gun mounting structure and blast furnace gas deacidification device Download PDFInfo
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- CN210595957U CN210595957U CN201921525428.2U CN201921525428U CN210595957U CN 210595957 U CN210595957 U CN 210595957U CN 201921525428 U CN201921525428 U CN 201921525428U CN 210595957 U CN210595957 U CN 210595957U
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Abstract
The utility model discloses a spray gun mounting structure and a blast furnace gas deacidification device, wherein the spray gun is mounted in an alkali liquor spraying tower, a mounting pipe and a half ball valve are arranged in the tower wall of the alkali liquor spraying tower or outside the tower wall, and the half ball valve is arranged between the mounting pipe and the tower wall; the spray gun penetrates through the hemispherical valve and the mounting pipe, and a nozzle of the spray gun extends into the alkali liquor spraying tower. The utility model provides a spray gun mounting structure through installation pipe and hemisphere valve installation spray gun, can spray the spray gun that the tower operation in-process was blockked up in online maintenance at alkali lye to can not cause blast furnace gas to reveal. By improving the connection mode of the spray gun and the tower wall of the alkali liquor spraying tower, the problem that the spray gun cannot be blocked in the operation process in the prior art is solved.
Description
Technical Field
The utility model belongs to the technical field of metallurgical equipment, concretely relates to spray gun mounting structure and blast furnace gas deacidification device.
Background
With the development of the last two decades, the blast furnace gas dry dedusting technology is gradually mature, is more and more valued and favored by iron and steel enterprises in various countries in the world, is gradually popularized and applied to large-scale blast furnaces from small-scale blast furnaces, and is an important mark of the current energy-saving and environment-friendly technology of the blast furnaces.
The blast furnace gas condensate water of the pipeline is strongly acidic, and the PH value is below 1 at most, which can cause serious corrosion to pipeline facilities. In order to reduce the corrosion of the blast furnace gas condensate water to the pipeline, the iron and steel metallurgical enterprises generally set an alkali liquor spraying tower to reduce the acidic ions (such as chloride ions, sulfite ions, sulfate ions and the like) of the blast furnace gas in the pipeline.
The alkali liquor spraying component is arranged in the alkali liquor spraying tower, the alkali liquor is atomized and sprayed into the alkali liquor spraying tower through a spray gun of the alkali liquor spraying component, and the alkali liquor (such as sodium hydroxide and the like) and the blast furnace gas are subjected to neutralization reaction, so that the corrosion of the blast furnace gas condensate water to the pipeline is reduced.
Because a lot of particles are often carried in blast furnace gas, the blast furnace gas has a certain temperature, the alkali liquor sprayed by the spray gun is normal-temperature liquid, and the particles mixed with blast furnace gas condensate water easily block the spray nozzle, the spray gun often encounters the problem of blocking in the operation process.
In the existing alkali liquor spraying tower, the spray gun is directly connected with the alkali liquor spraying tower body through a flange, if the problem that the spray gun is blocked is to be solved in the operation process, equipment is required to be stopped to detach the spray gun, and a large amount of blast furnace gas can be leaked, so that the personal safety is seriously affected.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a spray gun mounting structure and blast furnace gas deacidification device can spray the spray gun that the tower operation in-process was blockked up in online maintenance at alkali lye to can not cause blast furnace gas to reveal.
The technical scheme adopted for realizing the purpose of the utility model is that the spray gun mounting structure is characterized in that the spray gun is mounted in an alkali liquor spraying tower, a mounting pipe and a half ball valve are arranged in the tower wall of the alkali liquor spraying tower or outside the tower wall, and the half ball valve is arranged between the mounting pipe and the tower wall; the spray gun penetrates through the hemispherical valve and the mounting pipe, and a nozzle of the spray gun extends into the alkali liquor spraying tower.
Preferably, the hemispherical valve and the tower wall, the hemispherical valve and the mounting pipe and the spray gun and the mounting pipe are detachably connected through flanges.
Preferably, the end of the installation tube remote from the tower wall is internally filled with a sealing packing.
Preferably, a valve is arranged on a pipe body of the spray gun, which is positioned outside the installation pipe.
Based on the same inventive concept, the utility model also provides a blast furnace gas deacidification device, including alkali lye spray tower, liquid supply device and install in the alkali lye spray assembly in spray tower, the liquid supply device with alkali lye spray assembly communicates, alkali lye spray assembly contains more than 1 spray gun; an installation pipe and a semi-ball valve are arranged in the tower wall of the alkali liquor spraying tower or on the outer side of the tower wall, and the semi-ball valve is arranged between the installation pipe and the tower wall; the spray gun penetrates through the hemispherical valve and the mounting pipe, and a nozzle of the spray gun extends into the alkali liquor spraying tower.
Preferably, a wastewater recovery device is arranged outside the alkali liquor spraying tower, and the wastewater recovery device is communicated with the alkali liquor spraying tower.
Preferably, the liquid supply device comprises an alkali liquid supply device and a waste liquid supply device, and the waste liquid supply device is communicated with the waste water recovery device.
Preferably, the alkali liquor spraying component comprises more than 2 layers of spray gun groups arranged at intervals along the height direction of the alkali liquor spraying tower, and each spray gun group comprises more than 1 spray gun;
the spray gun groups of more than 2 layers are respectively communicated with the alkali liquor supply device or the waste liquor supply device.
Preferably, the lower part of the alkali liquor spraying tower is provided with an air inlet, and the upper part of the alkali liquor spraying tower is provided with an air outlet.
Preferably, the hemispherical valve and the tower wall, the hemispherical valve and the mounting pipe and the spray gun and the mounting pipe are detachably connected through flanges.
According to the technical scheme, the spray gun mounting structure provided by the utility model has the advantages that the spray gun is mounted through the mounting pipe and the half ball valve, and the half ball valve is arranged between the mounting pipe and the tower wall of the alkali liquor spraying tower; the spray gun penetrates through the semi-spherical valve and the mounting pipe, and the spray nozzle extends into the alkali liquor spraying tower. The hemispherical valve is used as a valve to seal the installation position of the spray gun when the spray gun is overhauled, so that the leakage of blast furnace gas is avoided, meanwhile, a certain space is formed inside the hemispherical valve, the spray gun can integrally penetrate through the hemispherical valve, the installation of the spray gun is not influenced, and the hemispherical valve is in a normally open state in the daily operation process of the alkali liquor spraying tower. When the spray gun is blocked, the spray gun can be outwards pumped, so that the nozzle of the spray gun is positioned in the installation pipe, and the half-ball valve can be normally closed to prevent leakage of blast furnace gas. The spray gun and the installation pipe are detached together for maintenance. The utility model discloses an improve the connected mode that spray gun and alkali lye sprayed tower wall to the problem that prior art can't handle the spray gun and block up in the operation process has been solved.
Drawings
Fig. 1 is a schematic structural view of a spray gun mounting structure in embodiment 1 of the present invention;
FIG. 2 is a block diagram of the lance of FIG. 1 during servicing;
description of reference numerals: 1-a spray gun, 11-a nozzle and 12-a pipe body; 2-a tower wall; 3-installation tube, 3 a-baffle; 4-a half ball valve; 5-a first flange; 6-a second flange; 7-a third flange; 8-sealing packing; 9-valve.
FIG. 3 is a schematic structural view of a blast furnace gas deacidification apparatus in embodiment 2 of the present invention;
description of reference numerals: 10-alkali liquor spraying tower; 20-an alkali liquor spraying component, 21-a spray gun group; 30-a liquid supply device, 31-an alkali liquor supply device and 32-a waste liquid supply device; 40-a wastewater recovery unit; 50-an alkali liquor storage device; 60-a liquid return pipe; 70-an air inlet; and 80, air outlets.
Detailed Description
In order to make the present application more clearly understood by those skilled in the art to which the present application pertains, the following detailed description of the present application is made with reference to the accompanying drawings by way of specific embodiments.
Example 1:
in the embodiment of the utility model provides an in, a spray gun mounting structure, spray gun are installed in alkali lye sprays the tower for spray alkali lye, with the acidic ion neutralization in the blast furnace gas, thereby alleviate the corruption of blast furnace gas comdenstion water to the pipeline.
Referring to fig. 1, the spray gun mounting structure is as follows: an installation pipe 3 and a half ball valve 4 are arranged in the tower wall 2 of the alkali liquor spraying tower or outside the tower wall 2, and the half ball valve 4 is arranged between the installation pipe 3 and the tower wall 2; the spray gun 1 penetrates through the half-ball valve 4 and the mounting pipe 3, and a nozzle 11 of the spray gun 1 extends into the alkali liquor spraying tower. The installation pipe 3 and the half ball valve 4 can be selectively arranged in the tower wall 2 or outside the tower wall 2 according to the thickness of the tower wall 2 of the alkali liquor spraying tower and the specific shape of the alkali liquor spraying tower, and in the embodiment, the installation pipe 3 and the half ball valve 4 are arranged in the tower wall 2.
Because installation pipe 3 and hemisphere valve 4 have been increased, the length of the pipe shaft 12 of spray gun 1 needs to be correspondingly increased, and valve 9 is installed on the pipe shaft 12 of spray gun 1 that is located outside installation pipe 3 (the one side of keeping away from hemisphere valve 4), and in this embodiment, valve 9 adopts the ball valve.
For the maintenance of convenient spray gun, in this embodiment, through first flange 5 detachably connected between hemisphere valve 4 and the tower wall 2, through second flange 6 detachably connected between hemisphere valve 4 and the installation pipe 3, through third flange 7 detachably connected between spray gun 1 and the installation pipe 3, flange joint indicates that two ring flanges pass through threaded fastener and connect. Two flange plates of the flanges 5, 6 and 7 are fixedly connected with two components to be connected respectively.
In order to reduce the leakage of blast furnace gas in the operation process of the equipment, the sealing filler 8 is filled in the end part, far away from the half-ball valve 4, of the installation pipe 3, and in the embodiment, the sealing filler 8 adopts a packing to plug the gap between the third flange 7 and the pipe body 12. A baffle plate 3a is arranged at one end, close to the third flange 7, in the mounting pipe 3, and the pipe body 12 is supported and fixed through the baffle plate 3a and the packing.
The installation pipe 3 lie in and form a vacant work between baffle 3a and second flange 6, temporarily hold nozzle 11 when the spray gun overhauls, consequently the pipe diameter of installation pipe 3 should satisfy at least and can hold nozzle 11, and installation pipe 3 adopts the metal pipeline in this embodiment, and when its pipe diameter satisfied installation pipe 3 and spray gun 1 were coaxial, nozzle 11 can freely rotate and do not touch the pipe wall of installation pipe 3 in installation pipe 3.
By using the spray gun mounting structure of the embodiment, the spray gun maintenance process is as follows:
(1) in daily operation, once the spray gun is blocked, the gate valve on the alkali liquor pipeline communicated with the spray gun and the ball valve 9 on the spray gun 1 are firstly closed, the third flange 7 is opened, and the spray gun 1 is slowly pumped outwards, as shown in figure 2.
(2) When the nozzle 11 of the spray gun 1 reaches the empty position of the mounting pipe 3, the half-ball valve 7 is closed, then the second flange 6 is opened, the spray gun 1 is taken down together with the mounting pipe 3, then the spray gun 1 is slowly taken out, and the nozzle 11 is removed for cleaning.
(3) After cleaning, the spray gun 1 and the mounting pipe 3 are assembled, the spray nozzle 11 is located at the empty position of the mounting pipe 3, then the sealing packing 8 is filled, the second flange 6 is connected, then the half-ball valve 7 is opened, the spray gun 1 is slowly pushed inwards, and the third flange 7 is connected after the spray gun 1 is in place.
(4) And opening a gate valve on the alkali liquor pipeline and a ball valve 9 on the spray gun 1, and putting the spray gun 1 into use again.
Example 2:
based on the same inventive concept, the embodiment provides a blast furnace gas deacidification device, referring to fig. 3, the blast furnace gas deacidification device comprises an alkali liquor spraying tower 10, a liquid supply device 30 and an alkali liquor spraying assembly 20 installed in the alkali liquor spraying tower 10, wherein the liquid supply device 30 is communicated with the alkali liquor spraying assembly 20 and is used for supplying alkali liquor to the alkali liquor spraying assembly 20.
The alkali liquor spraying component 20 comprises more than 2 layers of spray gun groups 21 arranged at intervals along the height direction of the alkali liquor spraying tower 10, and each layer of spray gun group 21 comprises more than 1 spray gun 1. Specifically, referring to fig. 3, in the present embodiment, the lye spraying assembly 20 comprises 3 layers of spray gun groups 21a, 21b, 21c arranged at intervals along the height direction of the lye spraying tower 10, each of the spray gun groups 21a, 21b, 21c comprises 8 spray guns, and the 8 spray guns are arranged along the circumferential direction of the inner wall of the lye spraying tower 10. The installation structure of each spray gun in the lye spraying tower 10 is the same as that of example 1 and will not be described herein.
The outside of the alkali liquor spraying tower 10 is provided with a wastewater recovery device 40, and the wastewater recovery device 40 is communicated with the alkali liquor spraying tower 10. The blast furnace gas condensate water and the liquid obtained by the neutralization reaction between the alkali liquor and the blast furnace gas are recovered in the wastewater recovery device 40.
In this embodiment, the lower part of the alkali liquor spraying tower 10 is provided with an air inlet 70, and the upper part is provided with an air outlet 80. That is, blast furnace gas in the alkali liquor spraying tower 10 adopts a circulation mode from bottom to top, in order to prevent waste liquor in the alkali liquor spraying tower 10 from flowing back into the air inlet 70, a liquid return pipe 60 is arranged at the lower part of the alkali liquor spraying tower 10, the liquid return pipe 60 is simultaneously communicated with the waste water recovery device 40 and the alkali liquor spraying tower 10, when the waste liquor in the alkali liquor spraying tower 10 is close to the air inlet 70, redundant waste liquor is discharged into the waste water recovery device 40 through the liquid return pipe 60.
Considering that the blockage of the spray gun is mainly caused by the dust of the blast furnace gas, if the dust amount of the blast furnace gas is reduced, the blockage problem of the spray gun can be greatly relieved, in the embodiment, the liquid supply device 30 comprises an alkali liquid supply device 31 and a waste liquid supply device 32, the alkali liquid supply device 31 is communicated with an alkali liquid storage device 50, the waste liquid supply device 32 is communicated with the waste water recovery device 40, and the 3-layer spray gun groups 21a, 21b and 21c are respectively communicated with the alkali liquid supply device 31 or the waste liquid supply device 32.
Specifically, in this embodiment, the lower spray gun group 21c is communicated with the waste liquid supply device 32, and is used for spraying waste liquid, cooling and dedusting blast furnace gas through the waste liquid, and the residual alkali liquor in the waste liquid can also perform a neutralization reaction on the blast furnace gas. The upper layer spray gun group 21a and the middle layer spray gun group 21b are both communicated with the alkali liquor supply device 31 and are used for spraying alkali liquor and neutralizing acid ions of blast furnace gas.
Through the embodiment, the utility model has the following beneficial effect or advantage:
the utility model provides a spray gun mounting structure through installation pipe and hemisphere valve installation spray gun, can spray the spray gun that the tower operation in-process was blockked up in online maintenance at alkali lye to can not cause blast furnace gas to reveal. By improving the connection mode of the spray gun and the tower wall of the alkali liquor spraying tower, the problem that the spray gun cannot be blocked in the operation process in the prior art is solved.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. The utility model provides a spray gun mounting structure, the spray gun is installed in alkali lye sprays tower which characterized in that: an installation pipe and a semi-ball valve are arranged in the tower wall of the alkali liquor spraying tower or on the outer side of the tower wall, and the semi-ball valve is arranged between the installation pipe and the tower wall; the spray gun penetrates through the hemispherical valve and the mounting pipe, and a nozzle of the spray gun extends into the alkali liquor spraying tower.
2. The lance mounting structure of claim 1, wherein: the hemispherical valve and the tower wall, the hemispherical valve and the mounting pipe and the spray gun and the mounting pipe are detachably connected through flanges.
3. A lance mounting structure as claimed in claim 1 or claim 2, wherein: and the end part of the installation pipe, which is far away from the tower wall, is internally filled with sealing packing.
4. A lance mounting structure as claimed in claim 1 or claim 2, wherein: and a valve is arranged on the pipe body of the spray gun outside the installation pipe.
5. The utility model provides a blast furnace gas deacidification device, includes that alkali lye sprays the tower, supplies the liquid device and install in alkali lye sprays the alkali lye spray assembly in the tower, supply the liquid device with alkali lye spray assembly communicates, alkali lye spray assembly contains spray gun more than 1, its characterized in that: an installation pipe and a semi-ball valve are arranged in the tower wall of the alkali liquor spraying tower or on the outer side of the tower wall, and the semi-ball valve is arranged between the installation pipe and the tower wall; the spray gun penetrates through the hemispherical valve and the mounting pipe, and a nozzle of the spray gun extends into the alkali liquor spraying tower.
6. The blast furnace gas deacidification apparatus according to claim 5, wherein: and a wastewater recovery device is arranged outside the alkali liquor spraying tower and communicated with the alkali liquor spraying tower.
7. The blast furnace gas deacidification apparatus according to claim 6, wherein: the liquid supply device comprises an alkali liquid supply device and a waste liquid supply device, and the waste liquid supply device is communicated with the waste water recovery device.
8. The blast furnace gas deacidification apparatus according to claim 7, wherein: the alkali liquor spraying component comprises more than 2 layers of spray gun groups arranged at intervals along the height direction of the alkali liquor spraying tower, and each spray gun group comprises more than 1 spray gun;
the spray gun groups of more than 2 layers are respectively communicated with the alkali liquor supply device or the waste liquor supply device.
9. The blast furnace gas deacidification apparatus according to any one of claims 5 to 8, wherein: the lower part of the alkali liquor spraying tower is provided with an air inlet, and the upper part of the alkali liquor spraying tower is provided with an air outlet.
10. The blast furnace gas deacidification apparatus according to any one of claims 5 to 8, wherein: the hemispherical valve and the tower wall, the hemispherical valve and the mounting pipe and the spray gun and the mounting pipe are detachably connected through flanges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921525428.2U CN210595957U (en) | 2019-09-12 | 2019-09-12 | Spray gun mounting structure and blast furnace gas deacidification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921525428.2U CN210595957U (en) | 2019-09-12 | 2019-09-12 | Spray gun mounting structure and blast furnace gas deacidification device |
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| Publication Number | Publication Date |
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| CN210595957U true CN210595957U (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921525428.2U Active CN210595957U (en) | 2019-09-12 | 2019-09-12 | Spray gun mounting structure and blast furnace gas deacidification device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113046140A (en) * | 2021-03-10 | 2021-06-29 | 中冶华天工程技术有限公司 | Novel blast furnace gas desulfurization tower and operation method |
| CN113430312A (en) * | 2021-06-28 | 2021-09-24 | 中冶赛迪工程技术股份有限公司 | Automatic anti-blocking spray gun device for online maintenance and setting method of online spray gun |
-
2019
- 2019-09-12 CN CN201921525428.2U patent/CN210595957U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113046140A (en) * | 2021-03-10 | 2021-06-29 | 中冶华天工程技术有限公司 | Novel blast furnace gas desulfurization tower and operation method |
| CN113430312A (en) * | 2021-06-28 | 2021-09-24 | 中冶赛迪工程技术股份有限公司 | Automatic anti-blocking spray gun device for online maintenance and setting method of online spray gun |
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