A dry quenching device

Abstract

The embodiment of the present application provides a dry quenching furnace device, which comprises a pre-storage area and a cooling area, the pre-storage area comprises a conical loading area and an annular air channel area from top to bottom in sequence, a first elastic buffer device and a second elastic buffer device are arranged in a first shell part of the dry quenching furnace; the cooling area comprises a chute area, a cooling area straight section and an upper cone hopper area from top to bottom in sequence, a third elastic buffer device is arranged in a second shell part of the dry quenching furnace. The embodiment of the present application can improve the structural strength and stability of the dry quenching furnace, and prolong the service life of the dry quenching furnace.

Description

Technical Field

[0001] This invention relates to the field of coking technology, and in particular to a dry quenching furnace apparatus. Background Technology

[0002] The dry quenching furnace is the core equipment of the dry quenching system. Its outer shell is made of steel plates and structural steel, and its inner lining is made of refractory masonry. Functionally, the dry quenching furnace is divided into a pre-storage zone and a cooling zone from top to bottom. The pre-storage zone is the space formed by the inner wall of the annular gas duct zone and the masonry of the conical loading zone; the cooling zone is the space formed by the upper conical hopper, the straight section of the cooling zone, and the inclined duct masonry of the circulating gas outlet channel.

[0003] The cooling zone is a cylindrical masonry structure filled with coke. Inert circulating gas flows through the gaps in the coke layer, achieving direct countercurrent heat exchange with the coke. Heat transfer, mass transfer, and chemical reactions occur between the coke and the inert circulating gas within the cooling zone, with heat transfer being the primary process. The cooling zone is a space comprised of the inclined masonry located between the upper boundary of the inclined chute inlet and the peripheral inlet of the inert circulating gas in the upper conical hopper, the straight cylindrical masonry section of the cooling zone, and the upper conical hopper lined with cast iron plates. The inclined chute is the inert circulating gas channel connecting the cooling zone and the annular gas duct. Inert circulating gas, blown in by the gas supply device at the bottom of the dry quenching furnace, exchanges heat with the red-hot coke in the cooling zone before entering the annular gas duct via the inclined chute. The cylindrical masonry of the cooling zone bears the lateral normal stress and vertical frictional force of the coke column. Furthermore, the inclined masonry is a cantilever structure that also bears the weight of the pre-storage zone masonry and the frictional force between the coke and the pre-storage zone masonry.

[0004] Currently, the masonry of the dry quenching furnace still has the following problems: the masonry in the cooling zone wears out quickly and the inclined chute masonry is prone to breakage and collapse; the cylindrical masonry (inner wall of the annular gas duct) in the lower part of the pre-storage zone deforms into the annular gas duct or collapses. Summary of the Invention

[0005] The purpose of this invention is to provide a dry quenching furnace device to solve the problem of wear and deformation of the dry quenching furnace masonry.

[0006] The specific technical solution is as follows:

[0007] The first aspect of the present invention provides a dry quenching furnace device, which includes a pre-storage area and a cooling area from top to bottom;

[0008] The pre-storage area includes a conical loading area and an annular gas passage area from top to bottom. The first shell part of the dry quenching furnace is provided with a first elastic buffer device and a second elastic buffer device. The first elastic buffer device is provided between the first shell part and the outer wall of the annular gas passage area, and the second elastic buffer device is provided between the first shell part and the outer wall of the annular gas passage area.

[0009] The cooling zone, from top to bottom, includes an inclined section, a straight section of the cooling zone, and an upper conical hopper section. The second shell part of the dry quenching furnace is equipped with a third elastic buffer device, which is located between the second shell part and the straight section of the cooling zone.

[0010] In some embodiments of the present invention, the second elastic buffer device is located above the Rankine stress transition surface between the annular air passage region and the inclined passage region, and the third elastic buffer device is located above the Rankine stress transition surface between the inclined passage region and the straight section of the cooling zone.

[0011] In some embodiments of the present invention, the number of first elastic buffer devices is n, the number of second elastic buffer devices is m, and the number of third elastic buffer devices is p, where n>1, m>1, and p>1.

[0012] In some embodiments of the present invention, n first elastic buffer devices are arranged symmetrically about the center line of the dry quenching furnace, m second elastic buffer devices are arranged symmetrically about the center line of the dry quenching furnace, and p third elastic buffer devices are arranged symmetrically about the center line of the dry quenching furnace.

[0013] In some embodiments of the present invention, the first elastic buffer device, the second elastic buffer device, and the third elastic buffer device all include a protective plate, a support plate, a stiffener, and an elastic component, with a sealed cavity formed between the support plate and the protective plate.

[0014] In some embodiments of the present invention, the elastic component is a spring, a leaf spring, or a spring-leaf spring combination.

[0015] In some embodiments of the present invention, the elastic component is a spring-leaf spring assembly, which includes a spring and a leaf spring. The leaf spring is connected to a support plate, and a push rod is provided through the spring. One end of the push rod is fixed to the leaf spring, and the other end is fixed to the support plate by a nut.

[0016] In some embodiments of the present invention, a sealed cavity is formed between the protective plate, the support plate, and the leaf spring, and the sealed cavity is filled with heat insulation material.

[0017] In some embodiments of the present invention, the elastic component is a spring, and a top rod is provided through the spring. One end of the top rod is fixed to the protective plate, and the other end is fixed to the support plate by a nut.

[0018] In some embodiments of the present invention, the elastic component is a leaf spring, which is connected to a support plate.

[0019] Beneficial effects of the embodiments of the present invention:

[0020] The dry quenching furnace device provided in this embodiment of the invention includes a pre-storage area and a cooling area. The pre-storage area includes, from top to bottom, a conical loading area and an annular gas passage area. A first elastic buffer device and a second elastic buffer device are provided in the first shell part of the dry quenching furnace. The cooling area includes, from top to bottom, an inclined channel area, a straight section of the cooling area, and an upper conical hopper area. A third elastic buffer device is provided in the second shell part of the dry quenching furnace to release the shear stress of the dry quenching furnace masonry and the alternating stress at the Rankine stress transition surface, providing sufficient elastic protection for the dry quenching furnace masonry, improving the structural strength and stability of the dry quenching furnace, and extending the service life of the dry quenching furnace.

[0021] Of course, implementing any product or method of the present invention does not necessarily require achieving all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings.

[0023] Figure 1 This is a schematic diagram of the structure of a dry quenching furnace provided in an embodiment of the present invention;

[0024] Figure 2 for Figure 1 A cross-sectional view of one embodiment at point AA;

[0025] Figure 3 for Figure 1 A cross-sectional view of another embodiment at point AA;

[0026] Figure 4 This is one embodiment of the present invention. Figure 1 A magnified view of a portion of point B in the middle;

[0027] Figure 5 This is one embodiment of the present invention. Figure 1 A magnified view of a portion of point C in the middle;

[0028] Figure 6 This is one embodiment of the present invention. Figure 1 A magnified view of a portion of point D in the middle;

[0029] Figure 7a This is a schematic diagram of the elastic buffer device according to an embodiment of the present invention. Figure 1 , Figure 7b This is a top view of the elastic buffer device according to an embodiment of the present invention;

[0030] Figure 8aThis is a schematic diagram of the elastic buffer device according to an embodiment of the present invention. Figure 2 , Figure 8b This is a top view of the elastic buffer device according to an embodiment of the present invention;

[0031] Figure 9a This is a schematic diagram of the elastic buffer device according to an embodiment of the present invention. Figure 3 , Figure 9b This is a top view of the elastic buffer device according to an embodiment of the present invention;

[0032] Figure 10a This is a schematic diagram of the elastic buffer device according to an embodiment of the present invention. Figure 4 , Figure 10b This is a top view of the elastic buffer device according to an embodiment of the present invention;

[0033] Figure 11a This is a schematic diagram of the elastic buffer device according to an embodiment of the present invention. Figure 5 , Figure 11b This is a top view of the elastic buffer device according to an embodiment of the present invention.

[0034] In the diagram: 10. Pre-storage area; 20. Cooling area; 31. First shell section; 32. Second shell section; 101. Conical loading area; 102. Annular air duct area; 1021. Inner wall; 1022. Outer wall; 1023. Annular air duct outlet; 103. Inclined duct area; 1031. Inclined duct partition wall masonry; 104. Straight section of cooling area; 1041. Straight section masonry of cooling area; 105. Upper conical bucket area; 107. Rankine stress conversion surface; 21. First elastic buffer. 211. Impact device; 22. Second elastic buffer device; 23. Third elastic buffer device; 211. Protective plate; 212. Support plate; 213. Rib plate; 214. Elastic component; 215. Sealed cavity; 220. Spring; 230. Leaf spring; 240. Spring-leaf spring assembly; 2201. First spring; 2202. Second spring; 2301. First leaf spring; 2302. Second leaf spring; 222. Top rod; 223. Nut; L. Center line of dry quenching furnace. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art based on the present invention are within the scope of protection of the present invention.

[0036] During the operation of a dry quenching coke oven, a large amount of red-hot coke fills the interior of the oven, and this red-hot coke moves continuously under the influence of gravity. Based on this, the inventors discovered that the stress state of the red-hot coke inside the dry quenching oven can be analyzed as follows: When the red-hot coke powder is placed between two infinitely large vertical plates, and the plates are subjected to an outward force, the red-hot coke powder will flow outward or tend to flow outward. This stress state is called the Rankine active stress state, or simply the active dynamic state. When the plates are subjected to an inward pushing force, the red-hot coke powder will move inward or tend to move inward. This stress state is called the Rankine passive stress state, or simply the passive dynamic state. Typically, in the red-hot coke powder operation unit, the stress state during the filling process is the Rankine active dynamic state, and the stress state during the discharging process is the Rankine passive dynamic state.

[0037] Figure 1 This is a schematic diagram of a dry quenching furnace provided in an embodiment of the present invention. (Refer to...) Figure 1 The discharge process in the dry quenching furnace is continuous, while the charging process is intermittent. Therefore, the material level in the pre-storage zone 10 of the dry quenching furnace fluctuates continuously during production, meaning that the cylindrical masonry of the pre-storage zone 10 is subjected to periodic alternating loads. During dry quenching furnace maintenance, the material level in the pre-storage zone 10 continuously decreases until it reaches a low level. After the coke oven maintenance is completed, the material level gradually returns to normal production status through continuous charging. When the pre-storage zone 10 is at a low level, there is a significant drop between the charging port and the material level line. Charging coke will cause a huge impact on the lower cylindrical masonry of the pre-storage zone 10. In addition, the upper part of the pre-storage zone 10 is intermittently charged with coke, and its masonry is under Rankine active stress, while the coke in the middle and lower parts of the pre-storage zone 10 is continuously discharged to the cooling zone, meaning that the middle and lower masonry of the pre-storage zone 10 is under Rankine passive stress. Therefore, there exists a transition surface between the Rankine active and passive stresses, which changes with the material level in the pre-storage zone. In summary, the cylindrical masonry of the pre-storage zone 10 in the dry quenching furnace bears both the alternating forces of the Rankine active and passive stresses along the radial direction of the coke powder particles, and the shear stress between the coke powder particles and the wall of the cylindrical masonry in the pre-storage zone. Typically, the transition surface is located between the middle and lower parts of the inner wall of the annular gas duct. At this transition surface, not only is the stress discontinuous, but the stress direction also alternates. The cylindrical masonry of the pre-storage zone 10 is constructed of refractory bricks made of brittle materials, which have high rigidity and cannot withstand the strain characteristics under shear stress. It is prone to fatigue brittle fracture due to large strain at the Rankine stress transition surface 107.

[0038] The inventors also discovered that, for the cooling zone 20 of the dry quenching furnace, the masonry of the inclined channel zone 103 bears the active Rankine stress of the coke, while the lower part of the masonry of the cooling zone 20 bears the passive Rankine stress of the coke. That is, the masonry of the inclined channel zone 103, especially at the junction of the masonry of the inclined channel zone 103 and the masonry of the cooling zone 20, has a Rankine stress transition surface 107. The masonry at the Rankine stress transition surface 107 is prone to tearing damage due to alternating stress.

[0039] In view of this, embodiments of the present invention provide a dry quenching furnace apparatus, such as... Figure 1 As shown, from top to bottom, it includes a pre-storage area 10 and a cooling area 20.

[0040] The pre-storage area 10 includes, from top to bottom, a conical loading area 101 and an annular gas passage area 102. The first shell portion 31 of the dry quenching furnace is provided with a first elastic buffer device 21 and a second elastic buffer device 22 to buffer the shear stress of the circular masonry in the pre-storage area 10, as well as the alternating stress at the Rankine stress transition surface 107. The first elastic buffer device 21 is provided between the first shell portion 31 and the outer wall 1022 of the annular gas passage area 102, and the second elastic buffer device 22 is provided between the first shell portion 31 and the outer wall 1022 of the annular gas passage area 102.

[0041] The cooling zone, from top to bottom, includes an inclined section 103, a straight section 104, and an upper conical hopper section 105. The second shell part 32 of the dry quenching furnace is provided with a third elastic buffer device 23, which is used to buffer the radial stress at the masonry of the straight section 104 of the cooling zone. The third elastic buffer device 23 is located between the second shell part 32 and the straight section 104 of the cooling zone.

[0042] Among them, reference Figure 1 The first shell portion 31 is equipped with a first elastic buffer device 21 and a second elastic buffer device 22. During the charging or coke discharge process, the first elastic buffer device 21 and / or the second elastic buffer device 22 can undergo slight displacement, thereby releasing the shear stress at the cylindrical masonry of the pre-storage zone 10 and the alternating stress at the Rankine stress transition surface 107, reducing damage to the masonry and extending the service life of the dry quenching furnace masonry. The second shell portion 32 is equipped with a third elastic buffer device 23. During the charging or coke discharge process, the third elastic buffer device 23 can undergo slight displacement, thereby releasing the shear stress at the connection between the masonry of the cooling zone 20 and the masonry of the inclined zone 103, as well as the alternating stress at the Rankine stress transition surface 107, providing sufficient elastic protection for the dry quenching furnace masonry, improving the structural strength and stability of the dry quenching furnace, and extending the service life of the dry quenching furnace. The specific structure of the elastic buffer devices will be shown below.

[0043] In one implementation scheme, reference is made to Figure 1The second elastic buffer device 22 is located above the Rankine stress conversion surface 107 between the annular air passage zone 102 and the inclined passage zone 103, and is used to release the shear stress of the cylindrical masonry in the pre-storage zone 10, as well as the alternating stress at the Rankine stress conversion surface 107. The third elastic buffer device 23 is located above the Rankine stress conversion surface 107 between the inclined passage zone 103 and the straight section 104 of the cooling zone, and is used to release the shear stress of the masonry in the cooling zone 20, as well as the alternating stress at the Rankine stress conversion surface 107.

[0044] Reference Figure 1 , Figure 2 and Figure 3 The number of first elastic buffer devices 21 is n, the number of second elastic buffer devices 22 is m, and the number of third elastic buffer devices 23 is p, where n > 1, m > 1, and p > 1. This embodiment of the invention does not impose any particular limitation on the number of first elastic buffer devices 21 or second elastic buffer devices 22, as long as the objective of the invention can be achieved. In actual production, the number of first elastic buffer devices 21 and second elastic buffer devices 22 can be adjusted according to the stress conditions of the pre-storage area of ​​the dry quenching furnace and the stress-relieving capabilities of the first elastic buffer devices 21 and second elastic buffer devices 22. In one embodiment, the number of second elastic buffer devices 22 is an even number, for example... Figure 2 The two shown; in another embodiment, the number of second elastic buffer devices 22 is odd, for example, as shown in the figure. Figure 3 The nine shown.

[0045] The present invention does not impose any particular limitation on the number of the third elastic buffer device 23, as long as the purpose of the invention can be achieved. In actual production, the number of the third elastic buffer device 23 can be adjusted according to the stress condition of the dry quenching furnace in the cooling zone and the stress release capability of the third elastic buffer device 23.

[0046] Reference Figure 1 n first elastic buffer devices 21 are arranged symmetrically about the center line L of the dry quenching furnace, m second elastic buffer devices 22 are arranged symmetrically about the center line L of the dry quenching furnace, and p third elastic buffer devices 23 are arranged symmetrically about the center line L of the dry quenching furnace. By setting the above structure, shear stress and alternating stress at the Rankine stress transition surface 107 can be released more evenly.

[0047] Reference Figures 4 to 6 The first elastic buffer device 21, the second elastic buffer device 22, and the third elastic buffer device 23 all include a protective plate 211, a support plate 212, a stiffener 213, and an elastic component 214.

[0048] In one specific implementation, refer to Figure 4The protective plate 211 of the first elastic buffer device 21 is fitted to the outer wall 1022 of the annular gas passage area 102, which can directly transmit the stress on the inclined partition wall masonry, relieve the shear stress on the inclined passage masonry, provide sufficient elastic protection for the dry quenching furnace masonry, improve the structural strength and stability of the dry quenching furnace, and extend the service life of the masonry; the support plate 212 of the first elastic buffer device 21 is connected to the first shell part 31 through the stiffening plate 213, so that a sealed cavity 215 is formed between the support plate 212 and the protective plate 211 to prevent the gas inside the dry quenching furnace from flowing out.

[0049] In one specific implementation, refer to Figure 5 The protective plate 211 of the second elastic buffer device 22 is fitted to the upper side of the inclined partition wall masonry 1031 of the inclined section 103 and the outer wall 1022 of the annular gas passage area 102. It can directly transmit the stress on the inclined partition wall masonry, relieve the shear stress and alternating stress on the inclined section masonry, provide sufficient elastic protection for the dry quenching furnace masonry, improve the structural strength and stability of the dry quenching furnace, and extend the service life of the masonry. The support plate 212 of the second elastic buffer device 21 is connected to the first shell part 31 through the stiffening plate 213. In this way, a sealed cavity 215 is formed between the support plate 212 and the protective plate 211 to prevent the gas inside the dry quenching furnace from flowing out.

[0050] In one specific implementation, refer to Figure 6 The protective plate 211 of the third elastic buffer device 23 is fitted to the lower side of the inclined partition wall masonry 1031 of the inclined section 103 and the straight section masonry 1041 of the cooling zone. In this way, the stress on the inclined partition wall masonry can be directly transmitted, the shear stress and alternating stress on the inclined section masonry can be relieved, and sufficient elastic protection force can be provided for the dry quenching furnace masonry, thereby improving the structural strength and stability of the dry quenching furnace and extending the service life of the masonry. The support plate 212 of the third elastic buffer device 23 is connected to the second shell part 32 through the stiffening plate 213. In this way, a sealed cavity 215 is formed between the support plate 212 and the protective plate 211 to prevent the gas inside the dry quenching furnace from flowing out.

[0051] In this embodiment of the invention, the support plate 212 is welded to the first housing portion 31 by means of stiffeners 213. The protective plate 211, support plate 212, and stiffeners 213 in this embodiment of the invention are made of any one of cast iron, cast steel, and carbon steel.

[0052] Reference Figures 7a to 11b The elastic component 214 is a spring 220, a leaf spring 230, or a spring-leaf spring combination 240. The elastic component 214 can release the shear stress of the dry quenching furnace masonry, as well as the alternating stress of the masonry at the Rankine stress transition surface 107, providing sufficient elastic protection for the dry quenching furnace masonry, improving the structural strength and stability of the dry quenching furnace, and extending the service life of the masonry.

[0053] The number of leaf springs in this embodiment of the invention is not particularly limited, as long as the purpose of the invention can be achieved, it can be one or two. When there are two leaf springs, the first leaf spring is connected to the support plate 212, and the second leaf spring is connected to it. The spring is divided into a first spring and a second spring by the second leaf spring. The first spring is connected to the first leaf spring, and the second spring is connected to the second leaf spring. The number of springs in this embodiment of the invention is not particularly limited, as long as the purpose of the invention can be achieved, it can be one to five groups. When the number of springs is greater than one, multiple springs are arranged parallel to each other along the axial direction of the furnace body.

[0054] In this embodiment of the invention, the connection between the support plate 212 and the leaf spring 230 can be an integral connection or a detachable connection.

[0055] In one implementation scheme, reference is made to Figure 7a and Figure 7b The elastic component 214 is a spring-leaf spring assembly 240, which includes a spring 220 and a leaf spring 230. The leaf spring 230 includes a first leaf spring 2301 and a second leaf spring 2302. The first leaf spring 2301 is connected to the protective plate 211. The spring 220 is divided into a first spring 2201 and a second spring 2202 by the second leaf spring 2302. One end of the first spring 2201 is connected to the first leaf spring 2301, and the other end is connected to the second leaf spring 2302. One end of the second spring 2202 is connected to the second leaf spring 2302, and the other end is connected to the support plate 212. A push rod 222 is provided through the spring 220. One end of the push rod 222 is fixed to the first leaf spring 2301, and the other end is fixed to the support plate 212 by a nut 223. A sealed cavity 215 is formed between the protective plate 211, the support plate 212, and the leaf spring 230. The sealed cavity 215 is filled with heat insulation material to keep the elastic buffer device warm and reduce the heat loss of the dry quenching furnace.

[0056] In another implementation, refer to Figure 8a and Figure 8bThe elastic component 214 is a spring-leaf spring assembly 240, which includes a spring 220 and a leaf spring 230. The leaf spring 230 includes a first leaf spring 2301 and a second leaf spring 2302. The first leaf spring 2301 is connected to the protective plate 211. Two sets of springs 220 are arranged parallel to each other along the axial direction of the furnace body. Each set of springs is divided into a first spring 2201 and a second spring 2202 by the second leaf spring 2302. One end of each set of first springs 2201 is connected to the first leaf spring 2301, and the other end is connected to the second leaf spring 2302. One end of each set of second springs 2202 is connected to the second leaf spring 2302, and the other end is connected to the support plate 212. A push rod 222 is provided through the spring 220. One end of the push rod 222 is fixed to the first leaf spring 230, and the other end is fixed to the support plate 212 by a nut 223. A sealed cavity 215 is formed between the protective plate 211, the support plate 212, and the leaf spring 230. The sealed cavity 215 is filled with heat insulation material to keep the elastic buffer device warm and reduce the heat loss of the dry quenching furnace.

[0057] In yet another implementation, refer to Figure 9a and Figure 9b The elastic component 214 is a spring-leaf spring assembly 240, which includes a spring 220 and a leaf spring 230. The leaf spring 230 is connected to the support plate 212. A push rod 222 is provided through the spring 220. One end of the push rod 222 is fixed to the leaf spring 230, and the other end is fixed to the support plate 212 by a nut 223. There is one leaf spring 230 and one spring 220. One end of the spring 220 is connected to the leaf spring 230, and the other end is connected to the support plate 212. A sealed cavity 215 is formed between the protective plate 211, the support plate 212, and the leaf spring 230. The sealed cavity 215 is filled with heat-insulating material to keep the elastic buffer device warm and reduce heat loss from the dry quenching furnace.

[0058] In one implementation scheme, reference is made to Figure 10a and Figure 10b The elastic component 214 is a spring 220, through which a push rod 222 is inserted. One end of the push rod 222 is fixed to the protective plate 211, and the other end is fixed to the support plate 212 by a nut 223. A sealed cavity 215 is formed between the protective plate 211 and the support plate 212. The sealed cavity 215 is filled with heat-insulating material to keep the elastic buffer device warm and reduce heat loss from the dry quenching furnace. In this embodiment of the invention, the spring 220 can release the shear stress of the dry quenching furnace masonry and the alternating stress at the Rankine stress transition surface 107, providing sufficient elastic protection for the dry quenching furnace masonry, improving the structural strength and stability of the dry quenching furnace, and extending the service life of the masonry.

[0059] In one implementation scheme, reference is made to Figure 11a and Figure 11b The elastic component 214 is a leaf spring 230, which is connected to the support plate 212. A sealed cavity 215 is formed between the protective plate 211, the support plate 212, and the leaf spring 230. The sealed cavity 215 is filled with insulating material to insulate the elastic buffer device and reduce heat loss from the dry quenching furnace. In this embodiment, the leaf spring 230 can release the shear stress of the dry quenching furnace masonry, as well as the alternating stress at the Rankine stress transition surface 107, providing sufficient elastic protection for the dry quenching furnace masonry, improving the structural strength and stability of the dry quenching furnace, and extending the service life of the masonry.

[0060] The dry quenching furnace device provided in this embodiment of the invention includes a first elastic buffer device and a second elastic buffer device in the first shell portion of the dry quenching furnace, and a third elastic buffer device in the second shell portion of the dry quenching furnace. These devices are used to release the shear stress of the dry quenching furnace masonry and the alternating stress at the Rankine stress transition surface 107, thereby providing sufficient elastic protection for the dry quenching furnace masonry, improving the structural strength and stability of the dry quenching furnace, and extending the service life of the dry quenching furnace.

[0061] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0062] The various embodiments in this specification are described in a related manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0063] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. A dry quenching installation, characterized in that, The pre-storage area (10) and the cooling area (20) are sequentially arranged from top to bottom. The pre-storage area (10) sequentially comprises a conical loading area (101) and an annular air passage area (102) from top to bottom, the first shell part (31) of the dry quenching furnace is provided with a first elastic buffer device (21) and a second elastic buffer device (22), the first elastic buffer device (21) is arranged between the first shell part (31) and the outer wall (1022) of the annular air passage area (102), and the second elastic buffer device (22) is arranged between the first shell part (31) and the outer wall (1022) of the annular air passage area (102). The cooling area sequentially comprises a chute area (103), a cooling area straight section (104) and an upper cone hopper area (105) from top to bottom, the second shell part (32) of the dry quenching furnace is provided with a third elastic buffer device (23), and the third elastic buffer device (23) is arranged between the second shell part (32) and the cooling area straight section (104). The second elastic buffer device (22) is located above the Rankine stress conversion surface (107) between the annular air passage area (102) and the chute area (103), and the third elastic buffer device (23) is located above the Rankine stress conversion surface (107) between the chute area (103) and the cooling area straight section (104).

2. Dry quenching installation according to claim 1, characterized in that The number of the first elastic buffer devices (21) is n, the number of the second elastic buffer devices (22) is m, and the number of the third elastic buffer devices (23) is p, n>1, m>1 and p>1.

3. Dry quenching installation according to claim 2, characterized in that The n first elastic buffer devices (21) are arranged in axial symmetry with the center line of the dry quenching furnace, the m second elastic buffer devices (22) are arranged in axial symmetry with the center line of the dry quenching furnace, and the p third elastic buffer devices (23) are arranged in axial symmetry with the center line of the dry quenching furnace.

4. The dry quenching furnace apparatus of claim 1, wherein The first elastic buffer device (21), the second elastic buffer device (22) and the third elastic buffer device (23) each comprise a protection plate (211), a support plate (212), a rib plate (213) and an elastic component (214), and a closed cavity (215) is formed between the support plate (212) and the protection plate.

5. Dry quenching installation according to claim 4, characterized in that The elastic component (214) is a spring (220), a leaf spring (230) or a spring-leaf spring combination (240).

6. Dry quenching installation according to claim 5, characterized in that When the elastic component (214) is the spring-leaf spring combination (240), the spring-leaf spring combination (240) comprises the spring (220) and the leaf spring (230), the leaf spring (230) is connected with the support plate (212), the spring is provided with a top rod (222) penetrating through the spring, one end of the top rod (222) is fixed on the leaf spring (230), and the other end of the top rod (222) is fixed on the support plate (212) through a nut (223).

7. Dry quenching installation according to claim 6, characterized in that The protection plate (211), the support plate (212) and the leaf spring (230) form a closed cavity (215), and the closed cavity (215) is filled with a heat insulation material.

8. The dry quenching furnace apparatus of claim 5, wherein, The elastic component (214) is the spring (220), the spring (220) is provided with a top rod (222) penetratingly, one end of the top rod (222) is fixed on the protection plate (211), and the other end is fixed on the support plate (212) through a nut (223).

9. The dry quenching furnace apparatus of claim 5, wherein, The elastic component (214) is the leaf spring (230), and the leaf spring (230) is connected with the support plate (212).

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