CN219272504U - Blast furnace gas cloth bag ash discharging device - Google Patents
Blast furnace gas cloth bag ash discharging device Download PDFInfo
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- CN219272504U CN219272504U CN202223061667.1U CN202223061667U CN219272504U CN 219272504 U CN219272504 U CN 219272504U CN 202223061667 U CN202223061667 U CN 202223061667U CN 219272504 U CN219272504 U CN 219272504U
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- reducing pipe
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Abstract
The utility model provides a blast furnace gas cloth bag ash discharging device, which comprises: an ash discharge opening; the first pneumatic half ball valve is connected with the bottom of the ash discharge hole; the axial compensator is vertically connected with the bottom of the first pneumatic half ball valve; the second pneumatic half ball valve is vertically connected with the bottom of the axial compensator; the ash conveying reducing pipe is vertically connected with the bottom of the second pneumatic half ball valve, and a hand hole is formed in the side face of the ash conveying reducing pipe; and the wear-resistant ball valve is vertically connected with the bottom of the ash conveying reducing pipe. The utility model avoids dismantling the ash conveying reducing pipe and the pneumatic wear-resistant ball valve when dredging ash roads, and greatly reduces the workload of dredging ash roads; and adopt two pneumatic hemisphere valve designs, reveal when one of them pneumatic hemisphere valve, only need change one pneumatic hemisphere valve can, reduced the influence to the production operation, and can prolong the life of whole device.
Description
Technical Field
The utility model relates to the field of high-pressure blast furnace gas dust removal pneumatic ash conveying systems, in particular to a blast furnace gas cloth bag ash discharging device.
Background
In the existing high-pressure blast furnace industry, the ash conveying pipe at the lower part of the raw gas dedusting barrel adopts the structural design of ball valve, axial compensator, bell valve, ash conveying reducing pipe and ceramic wear-resistant ball valve from top to bottom, the design has obvious defects in actual use, the position which most easily causes ash blocking is generally positioned at the upper part of the ceramic wear-resistant ball valve, and large blocks are generally accumulated at the upper part of the cone of the ash conveying reducing pipe. Once the ash blockage is caused, the ceramic wear-resistant ball valve or the ash conveying reducing pipe is required to be removed to take out the blocking object, so that the operation is inconvenient. Because the tightness and the service life of a single ball valve are low, and the tightness of the bell valve is poor, high-pressure air flow in the dust removing cylinder is easy to leak out, and great potential safety hazards are caused for dredging ash paths.
The present utility model seeks to solve the above problems.
Disclosure of Invention
The existing ash conveying reducing pipe is easy to cause ash blocking, once the ash blocking is caused, the ceramic wear-resistant ball valve or the ash conveying reducing pipe is required to be removed, and the blocking objects can be taken out, so that the operation is inconvenient. The sealing performance and the service life of a single ball valve are low, the sealing performance of the bell valve is poor, and the technical problems that high-pressure air flow in a dust removal cylinder is easy to leak and the like exist.
In order to solve the problems in the prior art, the utility model provides the blast furnace gas cloth bag ash discharging device which is suitable for a pneumatic ash conveying mode and a dust removing and ash conveying mode in a scraper machine mode, and has high applicability.
In order to achieve the above purpose, the utility model provides a blast furnace gas cloth bag ash discharging device, comprising: an ash discharge opening; the first pneumatic half ball valve is connected with the bottom of the ash discharge hole; the axial compensator is vertically connected with the bottom of the first pneumatic half ball valve; the second pneumatic half ball valve is vertically connected with the bottom of the axial compensator; the ash conveying reducing pipe is vertically connected with the bottom of the second pneumatic half ball valve, and a hand hole is formed in the side face of the ash conveying reducing pipe; and the wear-resistant ball valve is vertically connected with the bottom of the ash conveying reducing pipe.
According to some embodiments of the utility model, the first pneumatic half ball valve may be a pneumatic half ball valve with a specification diameter of 300mm.
According to some embodiments of the utility model, the axial compensator may be a 300mm gauge diameter axial compensator.
According to some embodiments of the utility model, the second pneumatic half ball valve may be a pneumatic half ball valve with a diameter of 300mm.
According to some embodiments of the utility model, the ash conveying reducing pipe may be in an arrow conical shape.
According to some embodiments of the utility model, the diameter of the connection part of the ash conveying reducing pipe and the second pneumatic hemispherical valve is 300mm, the maximum diameter of the ash conveying reducing pipe is 640mm, and the minimum diameter of the ash conveying reducing pipe is 100mm.
According to some embodiments of the utility model, the diameter of the hand hole corresponds to the diameter of the junction of the ash discharge opening and the first pneumatic half ball valve.
According to some embodiments of the utility model, the hand hole diameter may be 300mm.
According to some embodiments of the utility model, the hand hole is located between the maximum diameter and the minimum diameter of the ash conveying reducing pipe, the hand hole is arranged at the position where the diameter of the ash conveying reducing pipe is the same as the diameter of the hand hole, and the wear-resistant ball valve is vertically connected with the position where the diameter of the ash conveying reducing pipe is the minimum.
According to some embodiments of the utility model, the wear-resistant ball valve can be a wear-resistant ball valve with a specification diameter of 100mm, and the wear-resistant ball valve is installed to be 850mm high from the ground.
According to some embodiments of the utility model, the region formed by connecting the axial compensator, the second pneumatic half ball valve, the ash conveying reducing pipe and the wear-resistant ball valve is called a buffer zone.
According to some embodiments of the utility model, the wear-resistant ball valve is a ceramic wear-resistant ball valve.
Compared with the prior art, the utility model has the beneficial effects that: in the utility model, the design of the double-hemisphere valve device is adopted, compared with the prior art that the connection mode of the global valve and the clock valve increases the length of the buffer zone, so that possible blocking objects are limited in the buffer zone, and the increase of the length of the buffer zone is beneficial to the breaking of the blocking objects; compared with the prior art of the connection device of the global valve and the bell valve, the double-hemisphere valve device has the advantages that the tightness is greatly improved, and because the tightness of a single pneumatic hemisphere valve is better, even if one of the pneumatic hemisphere valves leaks, the production operation can be continuously maintained, so that the potential safety hazard caused by frequent shutdown of the dedusting cylinder body is avoided; the ash conveying reducing pipe adopted in the utility model adopts a downward arrow taper shape, has three different characteristic diameters, optimizes and moves down the hand hole of the clock valve in the prior art, and the hand hole is positioned at a position closer to the blocking point of the blocking object, so that the blocking object can be directly observed by naked eyes, the blocking object can be taken out after the arm is extended, and the complicated operation and possible safety risks of repeatedly removing the ceramic wear-resistant ball valve or the ash conveying reducing pipe are reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a prior art blast furnace gas cloth bag ash discharge device;
fig. 2 is a schematic overall structure of a blast furnace gas cloth bag ash discharging apparatus according to an embodiment of the utility model.
Reference numerals:
100: a blast furnace gas cloth bag ash discharging device in the prior art;
101. an ash discharge opening; 102. pneumatic ball valves; 103. an axial compensator; 104. a pneumatic bell valve; 105. ash conveying reducing pipe; 106. pneumatic wear-resistant ball valve; H1. the height from the joint of the pneumatic ball valve and the ash discharge hole to the ground; H2. the height from the bottom of the pneumatic wear-resistant ball valve to the ground; H3. the height from the joint of the pneumatic ball valve and the axial compensator to the ground; l1, the length of a buffer zone;
200: according to the blast furnace gas cloth bag ash discharging device provided by the embodiment of the utility model;
201. an ash discharge opening; 202. a first pneumatic half ball valve; 203. an axial compensator; 204. the second pneumatic half ball valve; 205. ash conveying reducing pipe; 206. a hand hole; 207. wear-resistant ball valve; H1. the height from the joint of the ash discharge opening and the first pneumatic half ball valve to the ground; H2. the height from the bottom of the wear-resistant ball valve to the ground; H4. the height from the joint of the first pneumatic half ball valve and the axial compensator to the ground; l2. length of buffer.
Detailed Description
For a further understanding of the objects, construction, features, and functions of the utility model, reference should be made to the following detailed description of the preferred embodiments.
Fig. 1 shows a prior art blast furnace gas cloth bag ash handling apparatus 100 comprising: the ash discharge port 101, the pneumatic ball valve 102, the axial compensation 103, the pneumatic bell valve 104, the ash conveying reducing pipe 105 and the pneumatic wear-resistant ball valve 106 are vertically connected in sequence; the buffer zone L1 is formed by connecting an axial compensation 103, a pneumatic bell valve 104, an ash conveying reducing pipe 105 and a pneumatic wear-resistant ball valve 106.
As shown in fig. 1, the length of the buffer zone L1 is 2450mm; the height H1 between the bottom of the ash discharge hole 101 and the ground surface at the joint of the pneumatic ball valve 102 is 4000mm; the height H3 between the bottom of the pneumatic ball valve 101 and the bottom of the axial compensator 102 and the ground is 3300mm; the pneumatic wear-resistant ball valve 105 has a height H2 of 850mm from the ground. When ash blocking occurs, the ash blocking position is generally located at the upper part of the pneumatic wear-resistant ball valve 106, and the large-block blocking objects are generally gathered at the upper part of the cone of the ash conveying reducing pipe 105. From the perspective of parts, the tightness and the service life of a single pneumatic ball valve are low, the tightness of the pneumatic bell valve 204 is poor, high-pressure air flow in the dust removing cylinder is easy to leak, and great potential safety hazards are easily caused for dredging ash paths.
As shown in fig. 2, there is provided a blast furnace gas cloth bag ash discharging apparatus 200 according to an embodiment of the utility model, comprising: an ash discharge port 201; the first pneumatic half ball valve 202 is connected with the bottom of the ash discharge port 201; the axial compensator 203, the axial compensator 203 is vertically connected with the bottom of the first pneumatic half ball valve 202; the second pneumatic half ball valve 204, the second pneumatic half ball valve 204 is vertically connected with the bottom of the axial compensator 203; the ash conveying reducing pipe 205, the ash conveying reducing pipe 205 is vertically connected with the bottom of the second pneumatic half ball valve 204, and a hand hole 206 is arranged on the side surface of the ash conveying reducing pipe 205; and, a wear-resistant ball valve 207, wherein the wear-resistant ball valve 207 is vertically connected with the bottom of the ash conveying reducing pipe 205.
In the example shown in FIG. 2, the first pneumatic half ball valve 202 and the second pneumatic half ball valve 204 may be pneumatic half ball valves with a specification diameter of 300mm; the axial compensator 203 may be a 300mm gauge diameter axial compensator. The axial compensator can be an axial ripple compensator, so that the valve pipeline can be conveniently installed and disassembled, and equipment vibration can be absorbed.
In the example shown in fig. 2, the height H4 from the ground at the junction of the first pneumatic half ball valve 202 and the axial compensator 203 is 3581mm, which is greater than the ground height h3=3300 mm at the junction of the pneumatic ball valve 101 and the bottom of the axial compensator 102 shown in fig. 1. Because the pneumatic half ball valve is adopted, the action distance of ash slag is prolonged, and the crushing of massive particles is facilitated.
Further, the ash conveying reducing pipe 205 may be in an arrow taper shape. The ash conveying reducing pipe adopts an arrow conical design, and the buffer space of the blocking objects can be increased by different diameter designs, so that the blocking objects can collide with each other or the wall of the ash conveying reducing pipe, thereby reducing the volume of the blocking objects and being beneficial to ash discharging. In the example shown in fig. 2, the diameter of the connection between the ash conveying reducing pipe 205 and the second pneumatic half ball valve 204 is 300mm, the maximum diameter of the ash conveying reducing pipe 205 is 640mm, and the minimum diameter is 100mm.
Further, the diameter of the hand hole 206 corresponds to the diameter of the junction of the cinder notch 201 and the first pneumatic hemisphere valve 202. The diameter of the bottom of the ash discharge hole 202 limits the maximum volume of the blocking object, and the bottom diameter exceeding the ash discharge hole 201 is blocked at the ash discharge hole and cannot fall; therefore, the diameter of the hand hole 206 is consistent with the diameter of the connection between the ash discharge opening 201 and the first pneumatic half ball valve 202, which is beneficial to cleaning the blocking object through the hand hole 206. In the example shown in fig. 2, the hand hole 206 has a diameter of 300mm, corresponding to a diameter of 300mm at the junction of the discharge opening 201 and the first pneumatic half ball valve 202.
Further, in the blast furnace gas cloth bag ash discharging device 200, the hand hole 206 is positioned between the maximum diameter and the minimum diameter of the ash conveying reducing pipe 205, the hand hole 206 is arranged at the position where the pipe diameter of the ash conveying reducing pipe 205 is the same as the diameter of the hand hole 206, and the abrasion-resistant ball valve 207 is vertically connected with the minimum diameter of the ash conveying reducing pipe 205. The hand hole 206 is positioned on the lateral surface of the ash conveying reducing pipe 205, so that the hand can conveniently enter the ash conveying reducing pipe, and the large block of blocking objects can be taken out.
In the example shown in fig. 2, in the blast furnace gas bag-type ash discharging apparatus 200, the abrasion-resistant ball valve 207 may be an abrasion-resistant ball valve having a specification diameter of 100mm, and the height H2 from the ground after the installation of the abrasion-resistant ball valve 207 is completed is 850mm. The height H1 from the joint of the ash discharge opening and the first pneumatic half ball valve to the ground is 4000mm. The area formed by connecting the axial compensator 203, the second pneumatic half ball valve 204 and the ash conveying reducing pipe 205 with the wear-resistant ball valve 207 is called a buffer area, the length L2 of the buffer area is 2731mm, and is larger than the length L1=2450 mm of the buffer area formed by connecting the axial compensator 103, the pneumatic bell valve 104, the ash conveying reducing pipe 105 and the pneumatic wear-resistant ball valve 106 shown in fig. 1. Because the pneumatic half ball valve is adopted, the action distance of ash slag is prolonged, and the crushing of massive particles is facilitated.
The wear-resistant ball valve 207 may be a ceramic wear-resistant ball valve. The ceramic wear-resistant ball valve has the advantages of high compressive strength, high wear resistance, excellent oxidation resistance, excellent corrosion resistance, high temperature resistance, good heat insulation performance and the like.
In the blast furnace gas cloth bag ash discharging apparatus 200 according to the embodiment of the utility model, the hand hole 206 may be sealed by a flange member having good sealing property using a transparent material (e.g., tempered glass), so that an operator can observe whether there is a blockage at the hand hole by visual inspection since the hand hole 206 is sealed by the transparent material. An operator can also judge whether a blockage or a blocking object exists at the hand hole through abnormal changes (such as abnormal increase of pressure) of a pressure gauge connected to the ash conveying reducing pipe.
For example, when the operator determines that there is a blockage or blockage at the hand hole 206, the first pneumatic half ball valve 202 is closed first, if the pressure at the ash conveying reducing pipe 206 is lower than a safety threshold, the hand hole 206 can be opened, the blockage or blockage is taken out, then the hand hole 206 is closed and sealed, and then the first pneumatic half ball valve 202 is opened again to continue operation; if the pressure at the ash conveying reducing pipe 206 is not lower than the safety threshold, the second pneumatic half ball valve 204 can be closed after the first pneumatic half ball valve 202 is closed, when the pressure at the ash conveying reducing pipe 206 is lower than the safety threshold, the hand hole 206 can be opened, the plug or the blocking object can be taken out, then the hand hole 206 is closed and sealed, the first pneumatic half ball valve 202 and the second pneumatic half ball valve 204 are opened again, and the operation is continued.
Compared with similar devices in the prior art, according to the blast furnace gas cloth bag ash discharging device, the ash dredging can be completed only through the hand hole, so that the ash conveying reducing pipe and the pneumatic wear-resistant ball valve are prevented from being removed when the ash is dredged, and the workload of ash dredging is greatly reduced; according to the utility model, the pneumatic half ball valve is adopted, the tightness of a single pneumatic half ball valve is better, and the double pneumatic half ball valve is adopted, so that when one pneumatic half ball valve leaks, only one pneumatic half ball valve needs to be replaced, the influence on production operation is reduced, and the service life of the whole device can be prolonged; compared with the length L1 of the buffer zone of the device in the prior art, the length L2 of the buffer zone is prolonged, and the length of the buffer zone is increased, so that possible blocking objects are limited in the buffer zone, and the increase of the height of the buffer zone is beneficial to the breaking of the blocking objects; according to the utility model, the diameter of the dust discharging hole of the dust removing cylinder body is consistent with the diameter of the hand hole 206, so that the volume of the large block of blocking objects can be limited, and the blocking objects can be effectively taken out.
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer" orientation or positional relationship are merely for convenience of description and to simplify the description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.
The utility model has been described with respect to the above-described embodiments, however, the above-described embodiments are merely examples of practicing the utility model. It should be noted that the disclosed embodiments do not limit the scope of the utility model. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.
Claims (6)
1. An ash discharging device for a blast furnace gas cloth bag, comprising:
an ash discharge opening;
the first pneumatic half ball valve is connected with the bottom of the ash discharge hole;
the axial compensator is vertically connected with the bottom of the first pneumatic half ball valve;
the second pneumatic half ball valve is vertically connected with the bottom of the axial compensator;
the ash conveying reducing pipe is vertically connected with the bottom of the second pneumatic half ball valve, and a hand hole is formed in the side face of the ash conveying reducing pipe; the method comprises the steps of,
and the wear-resistant ball valve is vertically connected with the bottom of the ash conveying reducing pipe.
2. The blast furnace gas cloth bag ash discharging device according to claim 1, wherein the ash conveying reducing pipe is in an arrow-head cone shape.
3. The blast furnace gas cloth bag ash discharging device according to claim 1, wherein the diameter of the hand hole is consistent with the diameter of the joint of the ash discharging hole and the first pneumatic half ball valve.
4. The blast furnace gas cloth bag ash discharging device according to claim 1, wherein the hand hole is positioned between the maximum diameter and the minimum diameter of the ash conveying reducing pipe, the hand hole is arranged at the position where the pipe diameter of the ash conveying reducing pipe is the same as the diameter of the hand hole, and the wear-resistant ball valve is vertically connected with the minimum diameter of the ash conveying reducing pipe.
5. The blast furnace gas cloth bag ash discharging device according to claim 1, wherein the area formed by the connection of the axial compensator, the second pneumatic half ball valve, the ash conveying reducing pipe and the wear-resistant ball valve is called a buffer zone.
6. The blast furnace gas cloth bag ash discharging device according to claim 1, wherein the wear-resistant ball valve is a ceramic wear-resistant ball valve.
Priority Applications (1)
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CN202223061667.1U CN219272504U (en) | 2022-11-18 | 2022-11-18 | Blast furnace gas cloth bag ash discharging device |
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CN202223061667.1U CN219272504U (en) | 2022-11-18 | 2022-11-18 | Blast furnace gas cloth bag ash discharging device |
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CN202223061667.1U Active CN219272504U (en) | 2022-11-18 | 2022-11-18 | Blast furnace gas cloth bag ash discharging device |
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