CN211451894U - Top chimney sealing device for submerged arc furnace - Google Patents
Top chimney sealing device for submerged arc furnace Download PDFInfo
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- CN211451894U CN211451894U CN201921773218.5U CN201921773218U CN211451894U CN 211451894 U CN211451894 U CN 211451894U CN 201921773218 U CN201921773218 U CN 201921773218U CN 211451894 U CN211451894 U CN 211451894U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model discloses a top chimney sealing device for a submerged arc furnace, which mainly comprises a bell jar valve; the bell jar valve comprises a valve column and a valve cap arranged at the top of the valve column; the valve column is inserted into the chimney, and the valve cap is positioned at the top of the chimney; a cooling water tank is arranged on the outer periphery of the side wall of the upper part of the chimney, and comprises a water accumulating tank and a water drainage tank arranged on the outer periphery of the side wall of the upper part of the water accumulating tank; the peripheral plate of the drainage groove is higher than the peripheral plate of the water collecting groove; the peripheral plate of the drainage groove is lower than the top of the chimney; the valve cap outer periphery circle sets up the extension, the external diameter of extension slightly is greater than the external diameter of water drainage tank, leave the gap between extension and the cooling trough. The device has good sealing effect, and the temperature at the top of the chimney is also reduced through water-cooling sealing, so that the temperature of the valve cap of the bell jar valve is reduced, and the service life of equipment is prolonged.
Description
Technical Field
The utility model relates to an accessory equipment field for the ore smelting furnace especially relates to a top chimney sealing device for ore smelting furnace.
Background
At present, in the traditional water-cooling flue top chimney system (refer to attached figure 1) for the ore-smelting furnace in China, an inserting plate 7 is inserted into a yellow sand groove 8 of a top chimney through the self weight of a valve cap 1.2 of a bell jar valve 1, and is pulled up and opened by a pulley 5 fixed on a cross beam 4 and a hanging chain 6 connected between the top of the valve cap 1.2 and the pulley 5 during furnace shutdown maintenance. The sealing of the bell jar valve 1 valve cap 1.2 is all yellow sand sealing, and the fine yellow sand has some defects after a long time, such as:
firstly, the method comprises the following steps: the yellow sand can be hardened after being exposed in the environment of wind, rain and rain for a long time, although the inserting plate 7 of the upper bell-jar valve 1 of the top chimney can be inserted on the yellow sand by the gravity of the inserting plate, gaps are avoided from being left in some places;
secondly, the method comprises the following steps: if the fine yellow sand leaves a gap under the condition of meeting rainstorm, rainwater is easy to flow back into the furnace, and the condition is serious;
thirdly, the method comprises the following steps: because in normal operation, the bell jar valve 1 is in a closed state, and high temperature, smoke and dust in the furnace are pumped to the purifying device through the fan, but a part of the high temperature, smoke and dust can be more or less leaked to the top chimney, and the long-time high temperature, smoke and dust of the bell jar valve can generate certain scale deposit to yellow sand, the sealing effect can correspondingly reduce the service life of the equipment, the overhauling frequency can be increased, the top chimney is positioned at the highest position of the furnace, the overhauling difficulty is quite large, and the safety hazard of high-altitude operation is also positioned.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects of the prior art and providing the top chimney sealing device for the submerged arc furnace, which has good sealing performance, long service life and no need of frequent maintenance.
In order to realize the purpose of the utility model, the technical proposal of the utility model is that:
a top chimney sealing device for a submerged arc furnace mainly comprises a bell jar valve; the bell jar valve comprises a valve column and a valve cap arranged at the top of the valve column; the valve column is inserted into the chimney, and the valve cap is positioned at the top of the chimney; a cooling water tank is arranged on the outer periphery of the side wall of the upper part of the chimney, and comprises a water accumulating tank and a water drainage tank arranged on the outer periphery of the side wall of the upper part of the water accumulating tank; the peripheral plate of the drainage groove is higher than the peripheral plate of the water collecting groove; the peripheral plate of the drainage groove is lower than the top of the chimney; the valve cap outer periphery circle sets up the extension, the external diameter of extension slightly is greater than the external diameter of water drainage tank, leave the gap between extension and the cooling trough.
Preferably, the bottom of the valve cap is in a reverse taper shape; the bottom of the valve cap is placed at the top of the chimney, and the diameter of the valve cap is slightly larger than that of the chimney.
Preferably, a first stainless steel inserting plate is further arranged at the end part of the extending part, and the first stainless steel inserting plate is vertically downwards arranged or obliquely downwards arranged from inside to outside.
Preferably, a second stainless steel inserting plate is further arranged in the middle of the extending portion and inserted into the water collecting tank.
Preferably, the bottom plate at the bottom of the drainage groove is arranged obliquely upwards from inside to outside, and the bottom plate is further provided with a water outlet pipe.
Preferably, the side wall of the water collecting tank is provided with a water inlet pipe.
Preferably, the top sidewall of the bonnet is further provided with a sand inlet.
The utility model has the advantages that:
firstly, the method comprises the following steps: the periphery of the side wall of the upper part of the chimney is provided with a cooling water tank, the cooling water tank comprises a water collecting tank and a water drainage tank arranged on the periphery of the side wall of the upper part of the water collecting tank, the periphery plate of the water drainage tank is higher than the periphery plate of the water collecting tank, and the periphery plate of the water drainage tank is lower than the top of the chimney; the structure can prevent the phenomenon that water flows backwards into the furnace when the water pressure is too high;
secondly, the method comprises the following steps: cooling water enters from a water inlet pipe on the side wall of the water collecting tank, enters the water draining tank through the peripheral plate of the water collecting tank and is drained from a water outlet pipe of the water draining tank, a second stainless steel inserting plate is arranged in the middle of the extending part and inserted into the water collecting tank, so that a sealing effect is achieved, and the second stainless steel inserting plate can also prevent water corrosion, so that frequent maintenance is not needed;
thirdly, the method comprises the following steps: the extending part is arranged on the outer periphery of the valve cap, the first stainless steel inserting plate is arranged at the end part of the extending part, and if heavy storm rainwater exists, the rainwater can be directly discharged outwards instead of the drainage groove, so that the phenomenon that the rainwater is too large and the drainage groove is not discharged in time can be avoided;
fourthly: the whole device is good in sealing effect, the temperature of the top of the chimney is reduced through water-cooling sealing, the temperature of the valve cap of the bell jar valve is reduced, and meanwhile the service life of equipment is prolonged.
Drawings
Fig. 1 is a schematic view of a conventional bell jar valve.
Fig. 2 is a schematic structural diagram of the present invention.
FIG. 3 is a schematic view of a cooling water tank.
In the figure: 1 is a bell jar valve, 1.1 is a valve column, 1.2 is a valve cap, 1.3 is an extension part, 1.3.1 is a first stainless steel insertion plate, 1.3.2 is a second stainless steel insertion plate, 1.4 is a sand inlet, 2 is a chimney, 3 is a cooling water tank, 3.1 is a water collecting tank, 3.1.1 is a peripheral plate of the water collecting tank, 3.1.2 is a water inlet pipe, 3.2 is a water drainage tank, 3.2.1 is a peripheral plate of the water drainage tank, 3.2.2 is a water outlet pipe, 4 is a cross beam, 5 is a pulley, 6 is a suspension chain, 7 is an insertion plate, and 8 is a yellow sand tank.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
A top chimney sealing device for a submerged arc furnace mainly comprises a bell jar valve 1; the bell jar valve 1 comprises a valve column 1.1 and a valve cap 1.2 arranged at the top of the valve column 1.1; the valve column 1.1 is inserted into the chimney 2, and the valve cap 1.2 is positioned at the top of the chimney 2; a cooling water tank 3 is arranged on the outer periphery of the upper side wall of the chimney 2, and the cooling water tank 3 comprises a water accumulating tank 3.1 and a water drainage tank 3.2 arranged on the outer periphery of the upper side wall of the water accumulating tank 3.1; the peripheral plate 3.2.1 of the drainage groove is higher than the peripheral plate 3.1.1 of the water collecting groove; the peripheral plate 3.2.1 of the drainage groove is lower than the top of the chimney 2; extension 1.3 is set up to valve cap 1.2 outer periphery, the external diameter of extension 1.3 slightly is greater than the external diameter of water drainage tank 3.2, leave the gap between extension 1.3 and cooling trough 3.
Preferably, the bottom of the valve cap 1.2 is in an inverted cone shape; the bottom of the valve cap 1.2 is placed at the top of the chimney 2, and the diameter of the valve cap 1.2 is slightly larger than that of the chimney 2.
Preferably, a first stainless steel inserting plate 1.3.1 is further arranged at the end part of the extending part 1.3, and the first stainless steel inserting plate 1.3.1 is vertically downwards arranged or obliquely downwards arranged from inside to outside.
Preferably, a second stainless steel inserting plate 1.3.2 is further arranged in the middle of the extending part 1.3, and the second stainless steel inserting plate 1.3.2 is inserted into the water collecting groove 3.1.
Preferably, the bottom plate of the bottom of the drainage groove 3.2 is arranged from inside to outside in an inclined and upward manner, and the bottom plate is also provided with a water outlet pipe 3.2.2.
Preferably, a water inlet pipe 3.1.2 is arranged on the side wall of the water collecting tank 3.1.
Preferably, the top side wall of the bonnet 1.2 is also provided with a sand inlet 1.4.
The working principle of the sealing device is as follows:
cooling water enters from a water inlet pipe 3.1.2 on the side wall of the water collecting tank 3.1, enters a water draining tank 3.2 through a peripheral plate 3.1.1 of the water collecting tank, and is drained from a water outlet pipe 3.2.2 of the water draining tank 3.2, a second stainless steel inserting plate 1.3.2 is arranged in the middle of an extending part 1.3, and the second stainless steel inserting plate 1.3.2 is inserted into the water collecting tank 3.1, so that a sealing effect is achieved, and the second stainless steel inserting plate 1.3.2 can prevent water corrosion, so that frequent maintenance is not needed; the end part of the extension part 1.3 is provided with a first stainless steel inserting plate 1.3.1, if heavy storm rain water is encountered, the rainwater can be directly discharged to the outside instead of the drainage groove 3.2, so that the phenomenon that the rainwater cannot be discharged in time when passing through the large drainage groove 3.2 can be avoided, and the valve cap 1.2 is filled with yellow sand; one end of a lifting chain 6 is connected with the top of the valve cap 1.2, the other end of the lifting chain penetrates through a pulley 5 fixed on a cross beam 4, the lifting of the bell jar valve 1 is realized through the lifting chain 6 and the pulley 4, the sealing effect of the sealing device is good, the temperature of the top of the chimney 2 is also reduced through water cooling sealing, the temperature of the valve cap 1.2 of the bell jar valve is reduced, and meanwhile, the service life of the device is prolonged.
The described embodiments are only some, but not all embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (7)
1. The utility model provides a top chimney sealing device for ore furnace which characterized in that: mainly comprises a bell jar valve; the bell jar valve comprises a valve column and a valve cap arranged at the top of the valve column; the valve column is inserted into the chimney, and the valve cap is positioned at the top of the chimney; a cooling water tank is arranged on the outer periphery of the side wall of the upper part of the chimney, and comprises a water accumulating tank and a water drainage tank arranged on the outer periphery of the side wall of the upper part of the water accumulating tank; the peripheral plate of the drainage groove is higher than the peripheral plate of the water collecting groove; the peripheral plate of the drainage groove is lower than the top of the chimney; the valve cap outer periphery circle sets up the extension, the external diameter of extension slightly is greater than the external diameter of water drainage tank, leave the gap between extension and the cooling trough.
2. The top chimney sealing device for the submerged arc furnace according to claim 1, characterized in that: the bottom of the valve cap is inverted cone-shaped; the bottom of the valve cap is placed at the top of the chimney, and the diameter of the valve cap is slightly larger than that of the chimney.
3. The top chimney sealing device for the submerged arc furnace according to claim 1, characterized in that: the end part of the extension part is also provided with a first stainless steel inserting plate which is vertically downwards arranged or obliquely downwards arranged from inside to outside.
4. The top chimney sealing device for the submerged arc furnace according to claim 1, characterized in that: and a second stainless steel inserting plate is further arranged in the middle of the extending part and inserted into the water collecting tank.
5. The top chimney sealing device for the submerged arc furnace according to claim 1, characterized in that: the bottom plate at the bottom of the drainage groove is arranged obliquely upwards from inside to outside, and the bottom plate is also provided with a water outlet pipe.
6. The top chimney sealing device for the submerged arc furnace according to claim 1, characterized in that: the side wall of the water accumulation groove is provided with a water inlet pipe.
7. The top chimney sealing device for the submerged arc furnace according to claim 1, characterized in that: the top side wall of the valve cap is also provided with a sand inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921773218.5U CN211451894U (en) | 2019-10-22 | 2019-10-22 | Top chimney sealing device for submerged arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921773218.5U CN211451894U (en) | 2019-10-22 | 2019-10-22 | Top chimney sealing device for submerged arc furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211451894U true CN211451894U (en) | 2020-09-08 |
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ID=72304133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921773218.5U Active CN211451894U (en) | 2019-10-22 | 2019-10-22 | Top chimney sealing device for submerged arc furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211451894U (en) |
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2019
- 2019-10-22 CN CN201921773218.5U patent/CN211451894U/en active Active
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