CN212457906U - Annealing furnace lining for reducing atmosphere - Google Patents
Annealing furnace lining for reducing atmosphere Download PDFInfo
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- CN212457906U CN212457906U CN202021244831.0U CN202021244831U CN212457906U CN 212457906 U CN212457906 U CN 212457906U CN 202021244831 U CN202021244831 U CN 202021244831U CN 212457906 U CN212457906 U CN 212457906U
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- anticorrosive
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Abstract
In order to solve above-mentioned "dew point" problem and further improve the thermal-insulated heat preservation ability of furnace wall, the utility model provides a furnace wall of annealing for reducing atmosphere, a serial communication port mainly includes a plurality of settings in the inboard mounting of oven, along oven and the anticorrosive and thermal radiation coating of mounting medial surface distribution, be located anticorrosive and thermal radiation coating inboard compound silicate layer and be located compound silicate layer inboard high temperature resistant module, mounting one end and oven fixed connection, the other end sets up inside high temperature resistant module, anticorrosive and thermal radiation coating adopt the thermal-insulated anticorrosive coating of heat reflection.
Description
Technical Field
The utility model relates to an annealing furnace lining technical field, in particular to an annealing furnace lining for reducing atmosphere.
Background
Industrial kilns are widely used in various industries, and are thermal equipment for heating materials by using energy generated by electric energy conversion or fuel combustion, and the most common method in the heating furnace industry is to burn liquid or gaseous fuel to provide heat for heating in order to save cost. However, in recent years, with the decrease of profit of products and the continuous improvement of raw material cost, in order to reduce cost and improve profit, some domestic enterprises select liquid raw materials with slightly over-standard sulfur content or cheap fuels such as blast furnace self-made gas and coke oven self-made gas; meanwhile, in the process of heating materials, most of the materials contain impurity components such as part K, Na, and a great deal of reducing atmosphere generated by combustion brings great challenges to the performance of a furnace lining of the heating furnace.
The high-temperature ceramic fiber is a light, energy-saving and environment-friendly refractory material which is gradually developed in recent years, and is widely applied to industrial furnace linings due to the advantages of light weight, high temperature resistance, low thermal conductivity, low specific heat, good thermal stability, mechanical shock resistance and the like. For example, in patent CN108826993A, the fixing rods, the heat insulation cotton, the ceramic fiber layer and the refractory plate are used for preparing the high-temperature ceramic fiber furnace lining, so that the service life of the furnace lining is prolonged. The invention patent CN205843376U utilizes ceramic fiber, a plurality of metal anchoring pieces, a fire-resistant plate and a plurality of hanging rods to form a novel high-temperature fiber furnace lining structure, thereby prolonging the service life of the ceramic fiber furnace lining and reducing the maintenance cost of an industrial furnace. The invention patent CN202119260U adopts ceramic fiber felt, heat insulation reflection film and the like to prepare ceramic fiber heat insulation and heat preservation furnace lining, thereby ensuring the heat efficiency of the annealing furnace and reducing heat loss. Although the high-temperature ceramic fiber has a good heat preservation effect when used as a kiln lining, a 'dew point' is easily formed at the welding position of the fixing piece and the kiln wall under the reducing atmosphere, and the formed acidic or alkaline liquid corrodes the welding point and the kiln wall, so that the welding point is locally cracked and the kiln wall is partially damaged after a long time, and meanwhile, how to further improve the heat preservation effect, enhance the heat insulation capability and reduce the cost is also a problem to be considered.
Disclosure of Invention
In order to solve the above-mentioned "dew point" problem and further improve the thermal-insulated heat preservation ability of furnace wall, the utility model provides an annealing furnace wall for reducing atmosphere, the technical scheme of adoption as follows:
the utility model provides an annealing furnace lining for reducing atmosphere, its characterized in that mainly includes a plurality ofly sets up in the inboard mounting of oven, along oven and the inboard anticorrosive and heat radiation coating that distributes of mounting medial surface, be located anticorrosive and the inboard compound silicate layer of heat radiation coating and be located the inboard high temperature resistant module of compound silicate layer, mounting one end and oven fixed connection, the other end sets up inside high temperature resistant module, anticorrosive and heat radiation coating adopt the thermal-insulated anticorrosive coating of heat reflection.
Preferably, the thickness of the composite silicate layer is 20-30 mm.
Preferably, the thickness of the anti-corrosion and heat radiation coating is 3-6 mm.
Preferably, the high temperature resistant module is a ceramic fiber module.
Preferably, the thickness of the high-temperature resistant module is 250-300 mm.
The beneficial effects of the utility model reside in that:
1. by coating the corrosion-resistant and heat-radiating coating on the furnace wall and the surface of the fixing piece, the problems that dew points are formed at the welding position of the fixing piece and the furnace wall under the reducing condition, the welding point and the furnace wall are corroded by acidic or alkaline liquid, and the local cracking of the welding point and the damage of the furnace wall part are caused by long-time corrosion can be effectively prevented;
2. the ceramic fiber layer of the traditional annealing furnace lining on the structure is replaced by the composite silicate layer, and the heat conductivity coefficient of the composite silicate layer is smaller than that of the common ceramic fiber layer, so that the composite silicate layer has good heat insulation effect, light weight and low cost.
Drawings
FIG. 1 is a schematic view of the structure of the present invention
Wherein, the furnace comprises a furnace wall 1, a fixing part 2, an anticorrosion and heat radiation coating 3, a composite silicate layer 4 and a high temperature resistant module 5.
Detailed Description
An exemplary embodiment of the present disclosure will be described in more detail below with reference to fig. 1. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1 for the annealing furnace lining of reducing atmosphere, mainly include the oven 1, perpendicular fixed connection is in oven 1 inboard a plurality of mounting 2 that distributes, anticorrosive and thermal radiation coating 3, compound silicate layer 4, high temperature resistant module 5, wherein, mounting 2 one end and oven 1 medial surface fixed connection, the other end is deepened inside high temperature resistant module 5, anticorrosive and thermal radiation coating 3 is along oven 1 and mounting 2's internal surface distribution, anticorrosive and thermal radiation coating 3 incessantly distributes, anticorrosive and thermal radiation coating 3 adopts the thermal-reflective thermal-insulated anticorrosive coating, it is 5mm to paint thickness, compound silicate layer 4 then distributes at anticorrosive and thermal radiation coating 3's medial surface, its thickness is 25mm, high temperature resistant module 5 sets up in the inboard of compound silicate layer 4, high temperature resistant module 5 adopts the ceramic fiber module, thickness 300 mm.
This structure adopts the traditional ceramic fiber layer of 4 bags of body on compound silicate layer, and not only the coefficient of heat conductivity is low, it is effectual to keep warm, and the quality is light and with low costs, and more importantly, scribbles anticorrosive and thermal radiation coating 3 on oven 1 and 2 medial surfaces of mounting, can prevent that mounting 2 and oven 1 welding position from forming "dew point" under the reducing condition to prevent acidic or alkaline liquid corrosion welding point and oven 1 that form, lead to the problem of welding point local fracture and oven partial damage.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements can be made, and these improvements should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides an annealing furnace lining for reducing atmosphere, its characterized in that mainly includes a plurality ofly sets up in the inboard mounting of oven, along oven and the inboard anticorrosive and heat radiation coating that distributes of mounting medial surface, be located anticorrosive and the inboard compound silicate layer of heat radiation coating and be located the inboard high temperature resistant module of compound silicate layer, mounting one end and oven fixed connection, the other end sets up inside high temperature resistant module, anticorrosive and heat radiation coating adopt the thermal-insulated anticorrosive coating of heat reflection.
2. The annealing furnace lining for reducing atmosphere according to claim 1, wherein the thickness of the composite silicate layer is 20-30 mm.
3. The annealing furnace lining for reducing atmosphere according to claim 1, wherein the thickness of the corrosion-resistant and heat-radiating coating is 3-6 mm.
4. The annealing furnace lining for reducing atmospheres according to claim 1, wherein the refractory modules are ceramic fiber modules.
5. The annealing furnace lining for reducing atmosphere according to claim 1 or 4, wherein the thickness of the high temperature resistant module is 250-300 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021244831.0U CN212457906U (en) | 2020-07-01 | 2020-07-01 | Annealing furnace lining for reducing atmosphere |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202021244831.0U CN212457906U (en) | 2020-07-01 | 2020-07-01 | Annealing furnace lining for reducing atmosphere |
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| CN212457906U true CN212457906U (en) | 2021-02-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649589A (en) * | 2020-07-01 | 2020-09-11 | 山东民烨耐火纤维有限公司 | Annealing furnace lining for reducing atmosphere |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649589A (en) * | 2020-07-01 | 2020-09-11 | 山东民烨耐火纤维有限公司 | Annealing furnace lining for reducing atmosphere |
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