CN211041821U - Sand sealing device of soaking pit furnace - Google Patents
Sand sealing device of soaking pit furnace Download PDFInfo
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- CN211041821U CN211041821U CN201921359104.6U CN201921359104U CN211041821U CN 211041821 U CN211041821 U CN 211041821U CN 201921359104 U CN201921359104 U CN 201921359104U CN 211041821 U CN211041821 U CN 211041821U
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- sand seal
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- seal sword
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Abstract
The utility model relates to a sand seal device of soaking pit, including carbon element structure steel furnace lid body, carbon element structure steel furnace lid body passes through the welding mode with "L" type carbon element structure steel sand seal sword and is connected, "L" type carbon element structure steel sand seal sword with fall "L" type heat-resisting stainless steel sand seal sword and carry out reliable anchor through the bolt and be connected, the sand seal sword divides two segmentations, adopt the reliable anchor of bolt to connect, it drops effectively to reduce the sand seal sword, guarantee simultaneously that it is heat-resisting stainless steel to receive the fire face, can effectively reduce coming off of sand seal sword, even when the bolt is heated and is damaged and lead to the sand seal sword to drop, also only need change the bolt, anchor again can, need not carry out a large amount of welding repair work, reduce maintenance work volume.
Description
Technical Field
The utility model relates to a sand seal device especially relates to a be applied to sand seal device of soaking pit.
Background
The soaking furnace is an important device for heating steel ingots in the primary rolling production, and the steel ingots produced in a steel plant are generally required to be quickly sent to the soaking furnace for heating or soaking so as to uniformly heat the steel ingots to the required temperature in a short time. The hearth of the soaking pit furnace is cuboid, and steel ingots are vertically placed in the furnace. Usually, a group of several furnace pits share one set of control system.
The furnace cover of the soaking pit furnace mainly comprises a steel structure frame, a refractory material and a sealing device. In designing the furnace cover, consideration is given to the sealing performance and the heat insulating performance of the furnace cover in addition to the long service life, the simple structure, the light weight and the convenient maintenance of the furnace cover.
The furnace cover of the soaking pit furnace is generally sealed by sand, and the sand seal of the furnace cover of the soaking pit furnace is a device which is inserted into a sand seal groove around a furnace opening through a heat-resistant stainless steel sand seal cutter connected with the periphery of the furnace cover of the soaking pit furnace to form a sealed loop and prevent the heat loss of a furnace body. The general bell body of soaking pit bell sand seal device that now uses is carbon element structural steel Q235 material, and the sand seal sword adopts 0Cr18Ni 9's heat-resisting stainless steel material for tolerating flame high temperature, both pass through welding lug connection, owing to be heated the back, two kinds of material expansion rates are different, the face of weld is very easily torn, cause the sand seal sword to drop, lead to the sealed loop of furnace body to become invalid, the heat scatters and disappears seriously in the stove, and the sand seal sword is restoreed and is needed to adopt the stainless steel welding rod to weld and restore in addition, and work load is big.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a modified soaking pit furnace bell sand seal device is provided to above-mentioned prior art, can effectively reduce the number of times that drops of sand seal sword, and be convenient for maintain, reduce work load.
The utility model provides a sand seal device of soaking pit, mainly include carbon element structure steel furnace cover body, carbon element structure steel furnace cover body is connected with "L" type carbon element structure steel sand seal sword, "L" type carbon element structure steel sand seal sword is connected with "L" type heat-resisting stainless steel sand seal sword "L" type carbon element structure steel sand seal sword is connected with carbon element structure steel furnace cover through the welding mode, and the furnace cover body adopts the same structural steel material with sand seal sword welded connection's part, and the thermal expansion rate is the same, can avoid the tearing condition of face of weld to take place "it connects to fall" L "type heat-resisting stainless steel sand seal sword and carbon element structure steel sand seal sword and reliably anchor through the bolt, and the sand seal sword divides two of different materials from top to bottom, and the two adopts the reliable anchor of bolt to connect, effectively reduces the sand seal sword and drops, guarantees simultaneously that the face of receiving fire is heat-resisting stainless steel material.
Compared with the prior art, the utility model has the advantages of: this application adopts the sand seal piece of two different materials to assemble, can effectively reduce droing of sand seal sword, even when the bolt is heated and damages and lead to the sand seal sword to drop, also only need to change the bolt, the anchor again can, need not carry out a large amount of welding repair work, reduce maintenance work volume.
Drawings
Fig. 1 is a schematic structural diagram of the sand sealing device of the soaking pit furnace of the utility model.
Detailed Description
The invention is further described with reference to the following embodiments.
As shown in fig. 1, the sand sealing device of the soaking pit furnace of the present embodiment includes a carbon structural steel furnace cover body 1, the carbon structural steel furnace cover body 1 is connected with a "L" type carbon structural steel sand seal cutter 2 by welding, and the welded part of the furnace cover body and the sand seal cutter is made of the same carbon structural steel Q235 material, the "L" type carbon structural steel sand seal cutter 2 and an inverted "L" type heat-resistant stainless steel sand seal cutter 3 are reliably anchored and connected by bolts 4, the sand seal cutter is divided into two segments, and the bolts are reliably anchored and connected, so as to effectively reduce the falling of the sand seal cutter, and ensure that the fire receiving surface is made of heat-resistant stainless steel 0Cr18Ni9 material, the inverted "L" type heat-resistant stainless steel sand seal cutter 3 is inserted into a sand seal groove around the furnace mouth during use, so as to form a closed loop and block the heat loss of the furnace.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims (4)
1. The utility model provides a sand seal device of soaking pit, mainly includes the bell body, its characterized in that: still include first sand seal sword and second sand seal sword, the bell body with the same carbon element structural steel that is of material of first sand seal sword, the material of second sand seal sword is heat-resisting stainless steel material, bell body periphery and first sand seal sword welding, first sand seal sword passes through the fastener with second sand seal sword and is connected.
2. The sand sealing device of the soaking furnace according to claim 1, characterized in that the cross section of the first sand sealing knife is L type, the cross section of the second sand sealing knife is L type, and the first sand sealing knife and the second sand sealing knife are butted up and down and have a combination plane.
3. The sand seal of soaking pit furnace of claim 2, characterized in that: and holes which are communicated up and down are respectively formed in the combination plane of the first sand seal cutter and the second sand seal cutter, and the anchoring connection is realized through the matching of the holes and the bolts.
4. The sand seal of soaking pit furnace of claim 1, characterized in that: the furnace cover body and the first sand seal cutter are carbon structural steel Q235 metal pieces, and the second sand seal cutter is heat-resistant stainless steel 0Cr18Ni9 metal pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921359104.6U CN211041821U (en) | 2019-08-21 | 2019-08-21 | Sand sealing device of soaking pit furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921359104.6U CN211041821U (en) | 2019-08-21 | 2019-08-21 | Sand sealing device of soaking pit furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211041821U true CN211041821U (en) | 2020-07-17 |
Family
ID=71569545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921359104.6U Active CN211041821U (en) | 2019-08-21 | 2019-08-21 | Sand sealing device of soaking pit furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211041821U (en) |
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2019
- 2019-08-21 CN CN201921359104.6U patent/CN211041821U/en active Active
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