CN218329313U - Device is prevented overburning by smelting furnace water cooling element - Google Patents
Device is prevented overburning by smelting furnace water cooling element Download PDFInfo
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- CN218329313U CN218329313U CN202221434050.7U CN202221434050U CN218329313U CN 218329313 U CN218329313 U CN 218329313U CN 202221434050 U CN202221434050 U CN 202221434050U CN 218329313 U CN218329313 U CN 218329313U
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Abstract
The application relates to the technical field of metal smelting, and discloses a smelting furnace water cooling element over-burning prevention device for the face of a fire of a smelting furnace fire hole, include: a water cooling element and a refractory layer. The water cooling element is arranged on the side of the furnace mouth, a plurality of cooling water flow channels are arranged in the water cooling element at intervals in a penetrating manner, a plurality of filling grooves are also arranged on one side of the water cooling element facing the fire-facing surface, and filling blocks are arranged in the filling grooves; the refractory layer is laid on the filling block, one side of the water cooling element facing to the fire head and above the water cooling element. The problem of among the prior art because of the water cooling element is in the environment of high temperature, flue gas erodees and fuse-element erosion for a long time, and lead to its life to guarantee to be synchronous with the life-span of stove brick in the smelting furnace, and then appear the potential safety hazard is solved.
Description
Technical Field
The application relates to the technical field of metal smelting, in particular to an overburning prevention device for a water-cooling element of a smelting furnace.
Background
In the metal smelting production process, especially in the pyrometallurgy, various smelting furnaces are widely used for smelting operation, and generally, a water cooling element is used in a large scale in the smelting furnace to block melt splashing, guide smoke and serve as a refractory brick.
In the prior art, a water cooling element is generally in direct contact with a smelting furnace to cool the smelting furnace, because the temperature in the smelting furnace is too high (more than 1000 ℃), the water cooling element is in the environment of high temperature, flue gas scouring and melt erosion for a long time, the service life of the water cooling element cannot be ensured to be synchronous with the service life of furnace bricks in the smelting furnace, once the water cooling element leaks, cooling liquid in the water cooling element directly enters the smelting furnace, the erosion to the furnace bricks is large, the cooling liquid can also directly undergo smelting reaction, and safety accidents are easy to happen.
Accordingly, the prior art is yet to be improved and developed.
SUMMERY OF THE UTILITY MODEL
In view of the deficiencies of the prior art, the object of the application is to provide an overburning prevention device for a water cooling element of a smelting furnace, aiming at solving the problem that the service life of the water cooling element cannot be ensured to be synchronous with the service life of furnace bricks in the smelting furnace due to the fact that the water cooling element is in the environments of high temperature, flue gas scouring and melt erosion for a long time in the prior art, and further potential safety hazards appear.
The technical scheme of the application is as follows: the utility model provides a smelting furnace water cooling element prevents overburning device for the face of meeting a fire of smelting furnace fire door, includes:
the water cooling element is arranged on the side of the furnace mouth, a plurality of cooling water flow channels are arranged in the water cooling element at intervals in a penetrating manner, a plurality of filling grooves are also arranged on one side of the water cooling element facing the fire-facing surface, and filling blocks are arranged in the filling grooves;
the refractory layer is paved on the filling block, one side of the water-cooling element facing to a fire surface and above the water-cooling element.
In certain embodiments, the area of the furnace opening is less than the area of the refractory layer.
In some embodiments, the area of the water cooling element is greater than the area of the fire front;
the water cooling element is arranged to be a cuboid.
In some embodiments, the cross section of the filling groove in the width direction is an isosceles trapezoid, the long side of the isosceles trapezoid is arranged inside the water cooling element, and the short side of the isosceles trapezoid is arranged on the outer wall of the water cooling element.
In certain embodiments, a plurality of the filling grooves are arranged in parallel.
In some embodiments, the filled block shape is provided as a double dovetail, strip, cylinder, or barb shape.
In some embodiments, the filler block is disposed at intervals within the filler slot.
In certain embodiments, the fill block is disposed continuously within the fill slot.
In certain embodiments, the refractory layer is a corundum steel fiber refractory castable material refractory layer.
Therefore, the water-cooling element over-burning prevention device for the smelting furnace is characterized in that the water-cooling element is arranged on the side of the furnace mouth, a plurality of cooling water flow channels are arranged in the water-cooling element at intervals in a penetrating manner, a plurality of filling grooves are further formed in one side, facing the fire-facing surface, of the water-cooling element, and filling blocks are arranged in the filling grooves; laying the refractory layer on the filling block, one side of the water-cooling element facing to a fire-facing surface and above the water-cooling element; on the one hand, the cooling water is in water cooling element inner loop prevents the overburning for the smelting furnace cooling, and on the other hand sets up the filling block in the filling tank, and the filling block can increase the degree of cooling water and air abundant contact in the filling block, increases the heat dissipation capacity, and extension cooling water dwell time increases heat transfer area, and in addition, the flame retardant coating can make water cooling element avoid high temperature, the flue gas of the face of meeting a fire erode and melt erosion, increases its life, makes the device is prevented overburning by smelting furnace water cooling element and the life-span synchronization of stove brick in the smelting furnace, guarantees the security. The problem of among the prior art because of the water cooling element is in the environment of high temperature, flue gas erodees and fuse-element erosion for a long time, and lead to its life to guarantee to be synchronous with the life-span of stove brick in the smelting furnace, and then appear the potential safety hazard is solved.
Drawings
FIG. 1 is a front view of the structure of an embodiment of an over-burning prevention device for a water cooling element of a smelting furnace according to the present application;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a schematic structural view of a moving assembly and a lifting assembly of an embodiment of an over-burning prevention device for a water cooling element of a smelting furnace according to the present application;
FIG. 4 is a schematic view of a furnace mouth of an oxygen-enriched top-blown Isa furnace according to an embodiment of an anti-overburning device for a water cooling element of a smelting furnace of the present application;
FIG. 5 is a cross-sectional view of FIG. 4;
the reference numbers in the figures: 100. a water cooling element; 110. a cooling water flow passage; 120. filling the groove; 130. filling blocks; 200. a refractory layer; 300. and (4) a furnace mouth.
Detailed Description
The present application provides an over-burning prevention device for a water cooling element of a smelting furnace, which is described in detail in certain embodiments with reference to the attached drawings and examples in order to make the purpose, technical scheme and effect of the present application clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.
In the metal smelting production process, especially in the pyrometallurgy, various smelting furnaces are widely used for smelting, and generally, a water cooling element 100 is used in a large scale in the smelting furnace to block melt splashing, guide smoke and serve as a refractory brick. In the prior art, the water cooling element 100 is generally in direct contact with the smelting furnace to cool the smelting furnace, because the temperature in the smelting furnace is too high (more than 1000 ℃), the water cooling element 100 is in the environment of high temperature, flue gas scouring and melt erosion for a long time, the service life of the water cooling element cannot be synchronous with the service life of furnace bricks in the smelting furnace, once the water cooling element 100 leaks, cooling liquid in the water cooling element 100 directly enters the smelting furnace, the furnace bricks are eroded greatly, the cooling liquid can also directly undergo smelting reaction, and safety accidents are very easy to occur. Taking the copper smelting field as an example, considering the cooling use effect, the anti-splashing device arranged in the top-blowing furnace is generally a copper water-cooling element 100, and is in the environment of flue gas scouring and high-temperature melt splashing for a long time, the service life is 225 days as long as possible, the leakage phenomenon occurs only 27 days as short as possible, the service life of the copper smelting furnace is generally 2.5 years to 3 years, the service life is not matched, the influence on production organization is huge, and the leakage can also generate great potential safety hazard. In view of the above problems, the following embodiments are proposed:
in some embodiments, as shown in fig. 1, 2 and 3, the present application provides an anti-overburning device for a smelting furnace water cooling element, which is used on the fire-facing surface of a furnace mouth of the smelting furnace, and the fire-facing surface is upward in a vertical upward direction. Smelting furnace water cooling element prevents overburning device includes: the furnace comprises a water-cooling element 100 and a refractory layer 200, wherein the water-cooling element 100 is arranged on the side of a furnace mouth, a plurality of cooling water flow channels 110 are arranged in the water-cooling element 100 at intervals, a plurality of filling grooves 120 are also arranged on one side of the water-cooling element 100 facing the fire-facing surface, and filling blocks 130 are arranged in the filling grooves 120; the refractory layer 200 is laid on the filling block 130, the side of the water-cooling element 100 facing the fire front and above the water-cooling element 100.
It can be understood that input cooling water in the device is prevented overburning by smelting furnace water cooling element makes it be in cooling water runner 110 internal recycle of water cooling element 100 gives the heat dissipation of the face of fire of smelting furnace fire door, simultaneously, sets up filling block 130 in packing cell 120, and filling block 130 can increase the degree that cooling water and air fully contacted in filling block 130, increases the heat dissipation capacity, and extension cooling water dwell time increases heat transfer area, simultaneously, lays filling block 130 one side of water cooling element 100 orientation face of fire and the flame retardant coating 200 of water cooling element 100 top can make water cooling element 100 avoid high temperature, flue gas washing and the melt erosion of face of fire, increases its life, makes the device is prevented overburning by smelting furnace water cooling element is synchronous with the life-span of furnace brick in the smelting furnace, guarantees the security.
In the specific structure of this embodiment, the area of the furnace opening is smaller than the area of the refractory 200.
It can be understood that the area of the refractory layer 200 is larger than or equal to the area of the furnace mouth, and the refractory layer 200 covers the water cooling elements 100 corresponding to the furnace mouth, so that the material is saved on the basis of meeting the use requirement.
In the specific structure of this embodiment, the area of the water cooling element 100 is larger than the area of the fire-facing surface; the water cooling element 100 is arranged in a rectangular parallelepiped or a fan shape.
It can be understood that the shape and size of the water cooling element 100 according to the furnace type of the smelting furnace and the application of the water cooling element 100 need to be designed, the water cooling element 100 is not limited to a rectangular parallelepiped, and the side of the water cooling element 100 facing the fire front can also be set to be an arc shape or other shapes.
As shown in fig. 2, in the specific structure of the embodiment, a longer side of the filling groove 120 is taken as a length direction, a shorter side is taken as a width direction, a cross section of the filling groove 120 in the width direction is set to be an isosceles trapezoid, a long side of the isosceles trapezoid is set inside the water cooling element 100, and a short side of the isosceles trapezoid is set on an outer wall of the water cooling element 100.
It can be understood that after the fire-facing surface is determined, the shape and the arrangement direction of the filling grooves 120 are designed on the side of the water-cooling element 100 facing the fire-facing surface in the furnace according to the strength dislocation, and the filling grooves 120 formed on the fire-facing surface are designed comprehensively according to the overall mechanical performance of the water-cooling element 100. Specifically, the shape of the filling groove 120 is not limited to a rectangle, but also includes other shapes such as an arc shape and a trapezoid shape, which can meet the heat dissipation requirement.
As shown in fig. 1, 2 and 3, in the specific structure of the present embodiment, a plurality of the filling grooves 120 are arranged in parallel.
It can be understood that a plurality of the filling grooves 120 are arranged in parallel and evenly spaced, so that even heat dissipation can be ensured.
In some embodiments, a plurality of the filling grooves 120 may also be arranged in a criss-cross manner, so that more filling grooves 120 can be arranged to ensure sufficient heat dissipation.
In a specific structure of this embodiment, the filling block 130 is shaped as a double dovetail, a bar, a cylinder, or a barb.
It can be understood that the shape of the filling block 130 is not limited to a double dovetail shape, a strip shape, a cylinder shape, a barb shape, etc. according to the shape and size of the filling groove 120, the filling block 130 is designed and manufactured for subsequent fixing of the refractory layer 200.
In the specific structure of this embodiment, the filling blocks 130 are disposed at intervals in the filling grooves 120.
It is understood that the filling block 130 can be provided with intermittent filling according to the requirement, and the intermittent filling can satisfy the requirement of use and save the material of the filling block 130.
In some embodiments, the filling block 130 may be continuously filled in the filling groove 120 as required to ensure a heat dissipation effect, and the fixing process between the filling block 130 and the water cooling element 100 may be a bolt fastening process or a spot welding process. The shape of the filling block 130 is not limited to the double-dovetail shape, and may be provided in various forms such as a bar shape, a cylindrical shape, a barb shape, and the like.
In the specific structure of this embodiment, the refractory layer 200 is made of refractory material.
It can be understood that the refractory layer 200 is made of a refractory material, the refractory material is laid on the fire-facing surface and the surface of the filling block 130 through a mold, the refractory material needs to be poured by selecting a proper refractory material according to the smelting metal type, the melt and the smoke components of the smelting furnace and fully considering the compatibility with the melt in the furnace, and the distance between the refractory material and the top of the filling block 130 is not less than 25mm, so that the service life is prolonged. After the water-cooling element 100 is installed in place, the refractory castable is sintered by combining the furnace opening and the temperature rise curve of the smelting furnace, so that the follow-up service life is ensured to meet the requirement.
Specifically, the fire-resistant layer is a corundum steel fiber refractory castable refractory layer. The water-cooling element 100 has the advantages of high density, high strength, wear resistance and the like, can realize the over-burning prevention protection of the water-cooling element 100, and improves the safety performance of the water-cooling element 100 in the smelting furnace.
As shown in figures 4 and 5, taking an oxygen-enriched top-blown Isa furnace of southwest copper division of Yunan copper division as an example, the furnace is introduced into an Australian Manteassia smelter, oxygen-enriched air is blown from the top of the furnace to realize the self-heating reaction of copper concentrate, and in order to reduce the splashing of smelting melt and the entering of smoke dust into a waste heat boiler as much as possible, a copper water-cooling element 100 with the size of 3279mm 1125mm x 180mm is arranged in the furnace. As shown in FIG. 4, only part of the lower surface and the inner vertical surface are the fire-facing surfaces.
In this embodiment, the device for preventing overburning of the high-temperature fire-facing surface of the water-cooling element of the smelting furnace is used for lofting the inner walls of the water-cooling element 100 and the furnace mouth 300 in fig. 4 to determine the range of the water-cooling element 100 on the fire-facing surface.
This embodiment a smelting furnace water cooling element high temperature fire facing surface prevents overburning device combines water cooling element 100 inner flow channel position and size, sets up 5 rectangular shape filling grooves 120 that differ in length side by side below the fire facing surface, and the facade sets up two rectangular shape filling grooves 120 in the fire facing surface.
This embodiment a smelting furnace water cooling element high temperature is met a fire face and is prevented overburning device sets up two dovetail structural style filling blocks 130 that differ in size, with the form equipartition of being interrupted in filling groove 120.
According to the device for preventing overburning of the high-temperature fire-facing surface of the water-cooling element of the smelting furnace, the components of a copper smelting melt and flue gas scouring are considered, and a corundum steel fiber refractory castable is selected as a refractory layer 200 material of the fire-facing surface, has the characteristics of corrosion resistance, high hardness in a high-temperature environment and difficulty in falling off, has the highest temperature resistance of 1750 ℃ and is far higher than the highest temperature of 1200 ℃ for copper smelting, and can be effectively compatible with the copper smelting melt.
This embodiment a smelting furnace water cooling element high temperature is met a fire face and is prevented overburning device, for guaranteeing follow-up result of use, this pouring material is 30mm apart from filler strip top thickness, effectively avoids droing in the use.
The effect of the embodiment is as follows: after the refractory castable is sintered by the aid of the opening temperature of the Isa furnace, the operation is stable, the service life of the Isa furnace is synchronous with that of the Isa furnace, the longest service life of the Isa furnace reaches 34 months, the using effect is obvious, and after the refractory material is destructively removed, the filling strip is basically intact, the water cooling element 100 has no deformation and burning loss conditions, the condition of continuous use is provided, the anti-overburning protection of the water cooling element 100 can be realized, the use of the water cooling element 100 is prolonged, and the safety performance of the water cooling element 100 in the smelting furnace is improved.
In summary, in the device for preventing overburning of the water cooling element of the smelting furnace provided by the present application, the water cooling element 100 is disposed at the furnace mouth side, and a plurality of cooling water flow channels 110 are arranged in the water cooling element 100 at intervals, a plurality of filling grooves 120 are further disposed on one side of the water cooling element 100 facing the fire facing surface, and filling blocks 130 are disposed in the filling grooves 120; the refractory layer 200 is laid on the filling blocks 130, the side of the water-cooling element 100 facing the fire-facing surface and above the water-cooling element 100; on the one hand, the cooling water is in water cooling element 100 inner loop is for the smelting furnace cooling, prevents to overburn, and on the other hand sets up the filling block 130 in the filling tank 120, and the filling block 130 can increase the degree of cooling water and air abundant contact in the filling block 130, increases the heat dissipation capacity, and extension cooling water dwell time increases heat transfer area, and in addition, flame retardant coating 200 can make water cooling element 100 avoid receiving high temperature, the flue gas of meeting the fire face erode and melt-erosion, increases its life, makes the life-span synchronization of overburn device and smelting furnace stove brick is prevented to smelting furnace water cooling element, guarantees the security. The problem of among the prior art because of water-cooling element 100 be in the environment of high temperature, flue gas erode and fuse-element erosion for a long time, lead to its life to guarantee with the life-span synchronization of stove brick in the smelting furnace, and then appear the potential safety hazard is solved.
It should be understood that the application of the present application is not limited to the above examples, and that modifications or changes may be made by those skilled in the art based on the above description, and all such modifications and changes are intended to fall within the scope of the appended claims.
Claims (9)
1. The utility model provides a smelting furnace water cooling element prevents overburning device for the face of catching fire of smelting furnace fire door, its characterized in that includes:
the water cooling element is arranged on the side of the furnace mouth, a plurality of cooling water flow channels are arranged in the water cooling element at intervals in a penetrating manner, a plurality of filling grooves are also arranged on one side of the water cooling element facing the fire-facing surface, and filling blocks are arranged in the filling grooves;
the refractory layer is laid on the filling block, one side of the water cooling element facing to the fire face and above the water cooling element.
2. The anti-overburning device for the water cooling element of the smelting furnace according to claim 1, wherein the area of the furnace mouth is smaller than that of the refractory layer.
3. The smelting furnace water-cooling element over-burning prevention device according to claim 1, wherein the area of the water-cooling element is larger than the area of the fire-facing surface;
the water cooling element is arranged to be a cuboid.
4. The anti-overburning device for the water-cooling element of the smelting furnace according to claim 1, wherein the cross section of the filling groove in the width direction is an isosceles trapezoid, the long side of the isosceles trapezoid is arranged inside the water-cooling element, and the short side of the isosceles trapezoid is arranged on the outer wall of the water-cooling element.
5. The anti-overburning device for water-cooling element of smelting furnace according to claim 1, wherein a plurality of said filling grooves are arranged in parallel.
6. The anti-overburning device for the water cooling element of the smelting furnace according to claim 1, wherein the filling block is shaped as a double-dovetail, a bar, a cylinder or a barb.
7. The anti-overburning device for the water cooling element of the smelting furnace according to claim 1, wherein the filling blocks are arranged in the filling grooves at intervals.
8. The anti-overburning device for the water cooling element of the smelting furnace according to claim 1, wherein the filling blocks are continuously arranged in the filling grooves.
9. The anti-overburning device for the water cooling element of the smelting furnace according to claim 1, wherein the fire-resistant layer is a corundum steel fiber refractory castable refractory layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221434050.7U CN218329313U (en) | 2022-06-09 | 2022-06-09 | Device is prevented overburning by smelting furnace water cooling element |
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| CN202221434050.7U CN218329313U (en) | 2022-06-09 | 2022-06-09 | Device is prevented overburning by smelting furnace water cooling element |
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