CN218764582U

CN218764582U - Continuous cooling discharge device of high-temperature treatment furnace

Info

Publication number: CN218764582U
Application number: CN202222820672.XU
Authority: CN
Inventors: 金文浩
Original assignee: Wisdri Engineering and Research Incorporation Ltd
Current assignee: Wisdri Engineering and Research Incorporation Ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-03-28
Anticipated expiration: 2032-10-26

Abstract

The utility model particularly relates to a continuous cooling discharge device of high temperature treatment stove, including cooling cylinder, cooling storage silo, spiral discharge device and storage silo, the top of cooling cylinder has the feed inlet that is used for being connected with the discharge gate of high temperature treatment stove, the discharge gate of cooling cylinder with the feed inlet of cooling storage silo is connected, the discharge gate of cooling storage silo pass through flexible compensator one with spiral discharge device's feed inlet is connected, spiral discharge device's discharge gate with the feed inlet of storage silo is connected. The utility model realizes the dynamic cooling mode of blanking and cooling high-temperature materials from top to bottom through the cooling cylinder, the cooling storage bin and the spiral discharging device which are arranged in sequence, and is convenient to install and maintain; meanwhile, the first flexible compensator is used for connecting the discharge hole of the cooling storage bin with the feed inlet of the spiral discharging device, so that the thermal extension of cooling equipment can be absorbed, the equipment is prevented from being damaged, and the whole device is convenient to disassemble, assemble and maintain.

Description

Continuous cooling discharge device of high-temperature treatment furnace

Technical Field

The utility model particularly relates to a continuous cooling discharge device of high temperature treatment stove is applicable to the solid finished product material continuous cooling of high temperature graphitization stove or other high temperature calcination, smelting furnace, arranges the material.

Background

The finished products of the high-temperature graphitization furnace or other high-temperature calcining, roasting and smelting furnaces are generally extremely high in temperature, and a safe and reliable water cooling and discharging device is required to be arranged to continuously discharge and effectively cool the finished products, so that on one hand, the subsequent storage and transportation are facilitated, and on the other hand, the raw material processing time and the material level height in the furnace are dynamically adjusted to meet the requirements of dynamic and continuous production and improve the production efficiency. The existing cooling device cools high-temperature materials to a certain temperature and directly discharges the high-temperature materials into the discharging device, the high-temperature materials usually enable the cooling device to have certain thermal extension, and the cooling device is usually connected with the discharging device through a pipeline, so that the thermal extension of the cooling device cannot be absorbed, and equipment deformation, damage and the like are easily caused.

Disclosure of Invention

An object of the utility model is to provide a continuous cooling discharge device of high temperature treatment stove can solve partial defect among the prior art at least.

In order to achieve the purpose, the technical scheme of the utility model be a continuous cooling discharge device of high temperature treatment stove, including cooling cylinder, cooling storage silo, spiral discharge device and storage silo, the top of cooling cylinder has the feed inlet that is used for being connected with the discharge gate of high temperature treatment stove, the discharge gate of cooling cylinder with the feed inlet of cooling storage silo is connected, the discharge gate of cooling storage silo pass through flexible compensator one with spiral discharge device's feed inlet is connected, spiral discharge device's discharge gate with the feed inlet of storage silo is connected.

As one embodiment, the storage bin is arranged in a support, the spiral discharging device is fixed on the top surface of the support, the discharge port of the spiral discharging device is connected with the feed port of the storage bin through a second flexible compensator, and the discharge port of the storage bin is provided with a discharging valve.

As one embodiment, the support is provided with a cross beam, the outer wall of the storage bin is provided with a support leg, the support leg is supported on the cross beam, and a weighing sensor is arranged between the support leg and the cross beam.

As one embodiment, the spiral discharging device includes a cylinder, a spiral blade shaft, and a driving mechanism for driving the spiral blade shaft to rotate, the spiral blade shaft is installed in the cylinder, and both ends of the spiral blade shaft extend out of the cylinder and are installed in a bearing seat.

As one embodiment, ash blocking reverse spiral structures are arranged on the spiral blade shaft at positions corresponding to two ends of the cylinder.

In one embodiment, at least a part of the walls of the cooling storage bin are water-cooled walls, and cooling water pipes are arranged in the cooling storage bin and are communicated with the water-through wall cavities of the water-cooled walls.

As one embodiment, the cooling cylinder comprises a plurality of feeding pipes, the top ends of the plurality of feeding pipes are provided with feeding ports for being connected with a discharging port of a high-temperature treatment furnace, and a discharging port at the bottom end of each feeding pipe is connected with a feeding port of the cooling storage bin.

As one embodiment, the feeding pipe comprises a plurality of feeding pipe sections which are sequentially connected from top to bottom, the adjacent feeding pipe sections are connected through a flange structure, a water-cooling sleeve is sleeved on each feeding pipe section, and a water-cooling ring cavity is formed between the water-cooling sleeve and the water-cooling pipe section.

In one embodiment, the inner wall of each of the feeding pipe sections is provided with a heat-resistant lining, and the thickness of the heat-resistant lining is gradually reduced from top to bottom.

As an embodiment, the height of the feed tube sections increases gradually from top to bottom.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) The utility model realizes a dynamic cooling mode of blanking and cooling high-temperature materials at the same time through the cooling cylinder, the cooling storage bin and the spiral discharging device which are arranged from top to bottom in sequence, and is convenient to install and maintain; meanwhile, the discharge port of the cooling storage bin is connected with the feed port of the spiral discharging device through the first flexible compensator, so that the thermal extension of cooling equipment can be absorbed, the equipment is prevented from being damaged, and the whole device is convenient to disassemble, assemble and maintain;

(2) The utility model has the advantages that the cooling storage bin with larger volume is arranged to cool the materials again for a long time, so that on one hand, the temperature of the materials entering the spiral discharging device and the storage bin is not too high and the equipment is not damaged even if the furnace conditions are not smooth, the furnace temperature is unstable or the cooling effect of the cooling cylinder is not expected, and on the other hand, the number of the cooling cylinders can be reduced, thereby reducing the height of the cooling device;

(3) The utility model discloses a set up weighing sensor between the landing leg of storage silo and the crossbeam of support, weighing sensor can detect the weight of storage silo, can avoid the feed bin to fill with on the one hand and fail in time to arrange the material, influences the device and normally works, can avoid during the on the other hand unloading with the whole evacuation of storage silo, lead to a large amount of air to scurry into upper portion equipment even in the stove, influence production.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a front view of a continuous cooling and discharging device of a high temperature treatment furnace according to an embodiment of the present invention;

fig. 2 is a partial enlarged view of a cooling cylinder provided in an embodiment of the present invention;

fig. 3 is an enlarged view of a cooling storage bin provided by an embodiment of the present invention;

fig. 4 is an enlarged view of a spiral discharging device and a storage bin provided in an embodiment of the present invention;

FIG. 5 is a top view of a continuous cooling and discharging device of a high temperature treatment furnace according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view B-B of FIG. 3;

FIG. 7 is an enlarged schematic view at A in FIG. 3;

in the figure: 1. a cooling cylinder; 11. a feeding pipe; 12. water-cooling the sleeve; 13. a heat resistant inner liner; 14. a backwater flange; 15. a water inlet flange; 16. a flexible graphite gasket; 17. a spiral waterproof baffle; 2. cooling the storage bin; 21. a cooling water pipe; 22. a service valve; 3. a helical discharge device; 31. a barrel; 32. a helical blade shaft; 33. a dust-blocking reverse-spiral structure; 34. a cover plate; 35. a reduction motor; 36. a large sprocket; 37. a small sprocket; 38. a bearing seat; 4. a storage bin; 41. a support leg; 42. a discharge valve; 5. a support; 51. a cross beam; 6. a flexible compensator I; 7. a second flexible compensator; 8. and a weighing sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the present embodiment provides a continuous cooling and discharging device of a high temperature treatment furnace, including a cooling cylinder 1, a cooling storage bin 2, a spiral discharging device 3 and a storage bin 4, the top end of the cooling cylinder 1 has a feeding port for being connected with a discharge port of the high temperature treatment furnace, the discharge port of the cooling cylinder 1 is connected with the feeding port of the cooling storage bin 2, the discharge port of the cooling storage bin 2 is connected with the feeding port of the spiral discharging device 3 through a flexible compensator one 6, and the discharge port of the spiral discharging device 3 is connected with the feeding port of the storage bin 4.

In the embodiment, high-temperature materials discharged from a high-temperature treatment furnace enter a cooling cylinder 1, the cooling cylinder 1 cools the materials while discharging, the primarily cooled materials are reduced to a certain temperature and then enter a cooling storage bin 2 for caching, the cooling storage bin 2 cools the materials while caching the materials, the materials cooled again enter a spiral discharging device 3, the spiral discharging device 3 transports the cooled materials to a storage bin 4 for storage, and the cooling cylinder 1, the cooling storage bin 2 and the spiral discharging device 3 are combined to cool the high-temperature materials while discharging, so that the requirement of dynamic continuous production can be met, and the device can be better applied to continuous cooling and discharging of solid finished materials of high-temperature treatment furnaces such as a high-temperature graphitization furnace or other high-temperature calcination, roasting and smelting furnaces; simultaneously, the discharge hole of the cooling storage bin 2 is connected with the feed inlet of the spiral discharging device 3 through the flexible compensator I6, so that the thermal extension of cooling equipment can be absorbed, the equipment is prevented from being damaged, and the whole device is convenient to disassemble, assemble and maintain.

Wherein, the cooling cylinder 1 and the cooling storage bin 2 are both made of heat-resistant materials such as high-quality stainless steel or boiler steel. And the bottom of the cooling storage bin 2 is provided with an inspection valve 22, and the inspection valve 22 is connected with the feeding hole of the spiral discharging device 3 through a flexible compensator I6. When the spiral discharging device 3 and the storage bin 4 need to be overhauled, the overhauling valve 22 can be closed to separate the upper high-temperature area, so that the device is safer.

Further, the storage bin 4 is arranged in the support 5, the spiral discharging device 3 is fixed on the top surface of the support 5, the discharge port of the spiral discharging device 3 is connected with the feed inlet of the storage bin 4 through the second flexible compensator 7, the discharge port of the storage bin 4 is provided with a discharging valve 42, and the discharging valve 42 is opened when discharging is needed. The discharge gate of this embodiment through flexible compensator two 7 with spiral discharge device 3 is connected with the feed inlet of storage silo 4, can absorb cooling arrangement's thermal elongation, avoids damaging equipment, makes things convenient for the dismouting, the maintenance of whole equipment simultaneously.

The support 5 comprises a top plate and a plurality of stand columns for supporting the top plate, the adjacent stand columns are connected through a cross beam 51, a plurality of support legs 41 are arranged on the outer wall of the storage bin 4, the support legs 41 are supported on the cross beam 51 at corresponding positions, and weighing sensors 8 are arranged between the support legs 41 and the cross beam 51. Wherein, landing leg 41 has at least threely, and along the circumference equidistance interval arrangement of storage silo 4, all be provided with weighing sensor 8 between each landing leg 41 and the crossbeam 51 that corresponds position department, weighing sensor 8 can detect the weight of storage silo 4, can avoid the feed bin to fill with on the one hand and fail in time to arrange the material, influences the device and normally works, can avoid during the on the other hand unloading with the whole evacuation of storage silo 4, lead to a large amount of air scurry into upper portion equipment even stove, influence production.

Further, the spiral discharging device 3 includes a cylinder 31, a spiral blade shaft 32 and a driving mechanism for driving the spiral blade shaft 32 to rotate, the spiral blade shaft 32 is installed in the cylinder 31, two ends of the spiral blade shaft 32 extend out of the cylinder 31 and are installed in a bearing seat 38, and the bearing seat 38 is fixed on the top surface of the support 5. The driving mechanism drives the spiral blade shaft 32 to rotate, so that the materials are conveyed from the feeding hole to the discharging hole.

The driving mechanism comprises a speed reducing motor 35, a large chain wheel 36, a small chain wheel 37 and a chain, wherein the speed reducing motor 35 is fixed on the top surface of the support 5, the small chain wheel 37 is installed on an output shaft of the speed reducing motor 35, the large chain wheel 36 is installed at one end of the spiral blade shaft 32, the large chain wheel 36 is located outside the cylinder 31, and the large chain wheel 36 and the small chain wheel 37 are connected through the chain. The speed reducing motor 35 drives the small chain wheel 37 to rotate, the small chain wheel 37 drives the large chain wheel 36 through a chain, so that the spiral blade shaft 32 rotates in a specific direction to push high-temperature materials to be conveyed from the feeding hole to the discharging hole in the cylinder 31. The spiral discharging device 3 of the embodiment adopts chain transmission, is flexible transmission, avoids the influence of the thermal extension of the spiral blade shaft 32 on the speed reducing motor 35, and the speed reducing motor 35 is more convenient to overhaul and replace. Preferably, the speed reduction motor 35 is a variable frequency motor to adjust the rotating speed of the spiral blade shaft 32, so as to achieve the effect of adjusting the discharging speed, control the cooling time, control the processing time of the material in an upper graphitizing furnace or a smelting furnace or a calcining furnace, and realize dynamic adjustment production; the adjustment of the charge level in the furnace can be realized by adjusting the discharge speed, and the method is very important for the production of a high-temperature treatment furnace.

In the above embodiment, the positions of the helical blade shaft 32 corresponding to the two ends of the cylinder 31 are provided with the ash blocking reverse helical structures 33, the ash blocking reverse helical structures 33 are arranged at the two ends of the cylinder 31, the helical direction of the ash blocking reverse helical structures 33 is opposite to the direction of the raw material entering the shaft end seal, and therefore fine particles in the material can be effectively prevented from entering the shaft end seal to cause seal parts and shaft abrasion, and the service life and reliability of the device are affected. The spiral blade shaft 32 is preferably made of stainless steel or other high-temperature resistant materials, and the surface of the spiral blade shaft is sprayed with a heat insulating material, so that the high-temperature resistance of the equipment is improved, and the reliability of the equipment is improved.

Optimally, the upper part of the cylinder 31 is provided with a cover plate 34, and the cover plate 34 is provided with an access hole, so that the maintenance is convenient, and particularly, the blockage removal is performed during material blockage.

In this embodiment, at least a part of the walls of the cooling storage bin 2 are water-cooled walls, the bottom of the cooling storage bin is provided with a water inlet, the top of the cooling storage bin is provided with a water return port, and cooling water is introduced from the bottom to the top to further cool the material entering the cooling storage bin 2. Optimally, a cooling water pipe 21 is arranged in the cooling storage bin 2, and the cooling water pipe 21 is communicated with a water wall cavity of the water wall. The cooling water pipe 21 is arranged at the middle position in the cooling storage bin 2, and a plurality of pipes can be arranged at intervals, so that uneven cooling and heating can be avoided. The specific number of cooling water pipes 21 can be determined and adjusted according to the volume of the cooling storage silo 2, the temperature of the material, etc., and is preferably arranged vertically and distributed uniformly.

Optimally, the wall of the cooling storage bin 2 and the heat exchange surface of the cooling water as well as the heat exchange surface of the cooling water pipe 21 and the cooling water are both provided with tooth-shaped structures. Understandably, the heat exchange surface of the cooling water pipe 21 and the cooling water is the inner wall of the cooling water pipe 21, the wall of the cooling storage bin 2 and the heat exchange surface of the cooling water are the wall surfaces close to the inner cavity of the cooling storage bin 2, and the heat exchange area can be increased by arranging the tooth-shaped structure, so that the heat exchange effect and the efficiency are effectively improved.

In this embodiment, the cooling cylinder 1 includes a plurality of feeding pipes 11, and the plurality of feeding pipes 11 are integrally connected to form a whole, so as to improve the structural strength of the cooling cylinder 1; the plurality of feeding pipes 11 can be respectively connected with a plurality of material units of the high-temperature treatment furnace, and the number of the feeding pipes 11 can be set according to actual requirements so as to ensure that the required cooling temperature can be reached; every the top of inlet pipe 11 all has the feed inlet that is used for being connected with the discharge gate of high temperature treatment stove, every the discharge gate of the bottom of inlet pipe 11 all with the feed inlet of cooling storage silo 2 is connected. Wherein, the feed inlet of the feed pipe 11 and the discharge port of the high-temperature treatment furnace can adopt a flange structure for connection, thereby facilitating the installation and maintenance.

Optimize the above-mentioned embodiment, inlet pipe 11 includes a plurality of feeding pipe sections that top-down connected gradually, and connects through flange structure between the adjacent feeding pipe section, each all overlap on the feeding pipe section and be equipped with water-cooling sleeve 12 and enclose to establish between the two and form the water-cooling ring chamber. The feeding pipe 11 of the embodiment adopts a segmented structure, the water-cooling sleeve 12 and the water-cooling annular cavity correspondingly adopt the segmented structure, the feeding pipe sections are mutually independent, the equipment is convenient to prepare, install and maintain, and the number of the cold feeding pipe sections can be flexibly increased and decreased, so that the cooling requirement of different high-temperature materials is met, meanwhile, the cooling water of the feeding pipe sections and the cooling storage bin 2 can be independently controlled, the water quantity of each cooling point can be independently adjusted according to the position of the feeding pipe sections and the actual cooling requirement, the water quantity distribution is more reasonable, and a better cooling effect and an energy-saving effect are achieved; and the steam that each feeding pipe section produced can utilize in grades, and each section water-cooling ring chamber can in time take away the bubble that produces in the heat transfer process, reduces the pressure in the water-cooling ring chamber, guarantees heat transfer performance.

Be provided with spiral water proof baffle 17 in foretell water-cooling jacket pipe 12 and form level and smooth, the constrictive water course of spiral shell screwing in water-cooling ring chamber, make cooling water spiral shell screwing in water-cooling ring chamber rise and flow, can greatly promote cooling water velocity of flow to the bubble that makes high temperature cooling produce is in time taken away from the heat-transfer surface, improves the heat transfer effect, and the water course is level and smooth not have the blind spot simultaneously, avoids the local enrichment of bubble.

In an embodiment, the inner wall of each feeding pipe section is provided with a heat-resistant lining 13, so that high-temperature materials can be prevented from directly contacting the feeding pipe 11 to cause high-temperature damage and abrasion to the pipe body, and the service life of the feeding pipe 11 is prolonged. Further preferably, since the temperature of the material is gradually decreased from top to bottom, for the same feeding pipe 11, from top to bottom, the thickness of the heat-resistant lining 13 is gradually decreased, so as to decrease the thermal resistance of the heat-resistant lining 13, and decrease the influence of the heat-resistant lining 13 on the heat exchange efficiency, for example, when the temperature is cooled to a certain degree, the lower feeding pipe section can cancel the high-temperature resistant graphite lining, thereby reducing the cost.

Because the material temperature is higher, the vaporization of water is more serious when cooling, the bubble accumulation can increase the pressure of a cooling water cavity and can also influence the heat exchange effect, from top to bottom, the feeding temperature of each feeding pipe 11 is gradually reduced, in order to take away generated bubbles in time, the embodiment gradually increases the height of each feeding pipe section from top to bottom, the upper material temperature is higher, the height of the cooling cylinder 1 is smaller, the heights of the feeding pipes 11 and the cooling water channel are smaller, according to the trend that the temperature is gradually reduced from top to bottom, the height of the cooling cylinder 1 is gradually increased again, so that the feeding pipes 11 with higher feeding temperatures are higher, the water flow passing time is relatively shorter, the time for the bubbles to stay in the water cavity is shorter, the bubbles are taken out in time, and meanwhile, the temperature rise of the cooling water is not too high due to shorter cooling time.

The flange structure in the embodiment comprises two flanges which are oppositely arranged, the pipe sections of the feeding pipe 11, the feeding pipe 11 and the furnace bottom of the high-temperature treatment furnace and the feeding pipe 11 and the cooling storage bin 2 are connected through the flange structure, the flanges on the feeding pipe 11 can be water-cooling flanges, the deformation of the flanges due to high temperature is avoided, the water-cooling channels of the water-cooling flanges are communicated with the corresponding water-cooling ring cavities, the flanges are cooled by cooling water while the feeding pipe sections are cooled, and the influence on-site arrangement caused by too much cooling pipelines is avoided; the cooling water inlet and the cooling water return port of each feeding pipe section are respectively positioned on the flanges at two ends of the feeding pipe section, preferably, the cooling water inlet is positioned on the flange below, the cooling water return port is positioned on the flange above, and the cooling water flows from bottom to top, so that on one hand, the cooling water and the high-temperature material in the feeding pipe 11 perform countercurrent heat exchange, the cooling effect and the cooling efficiency are improved, on the other hand, the turbulence of the cooling water flow can be increased, the internal heat exchange of the cooling water is enhanced, and the cooling effect is enhanced. Further optimally, a flexible graphite sealing gasket 16 which can resist high temperature is arranged between the two flanges, so that the sealing performance of the joint of the device is improved, and air is prevented from entering the device.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a continuous cooling discharge device of high temperature treatment stove which characterized in that: including cooling cylinder, cooling storage silo, spiral discharge device and storage silo, the top of cooling cylinder has the feed inlet that is used for being connected with the discharge gate of high temperature treatment stove, the discharge gate of cooling cylinder with the feed inlet of cooling storage silo is connected, the discharge gate of cooling storage silo pass through flexible compensator one with spiral discharge device's feed inlet is connected, spiral discharge device's discharge gate with the feed inlet of storage silo is connected.

2. The continuous cooling discharging device of the high temperature treatment furnace according to claim 1, wherein: the storage silo sets up in the support, spiral discharge device is fixed in on the top surface of support, spiral discharge device's discharge gate pass through flexible compensator two with the feed inlet of storage silo is connected, the discharge gate of storage silo is provided with the blow-off valve.

3. The continuous cooling discharging device of the high temperature treatment furnace according to claim 2, wherein: the support is provided with a cross beam, the outer wall of the storage bin is provided with supporting legs, the supporting legs are supported on the cross beam, and a weighing sensor is arranged between the supporting legs and the cross beam.

4. The continuous cooling discharging device of the high temperature treatment furnace according to claim 1, wherein: the spiral discharging device comprises a cylinder body, a spiral blade shaft and a driving mechanism used for driving the spiral blade shaft to rotate, wherein the spiral blade shaft is arranged in the cylinder body, and two ends of the spiral blade shaft extend out of the cylinder body and are arranged in a bearing seat.

5. The continuous cooling discharging device of the high temperature treatment furnace according to claim 4, wherein: and ash blocking reverse spiral structures are arranged at positions on the spiral blade shaft corresponding to the two ends of the cylinder body.

6. The continuous cooling discharging device of the high temperature treatment furnace according to claim 1, wherein: at least part of the bin wall of the cooling storage bin is a water-cooled wall, a cooling water pipe is arranged in the cooling storage bin, and the cooling water pipe is communicated with a water-through wall cavity of the water-cooled wall.

7. The continuous cooling discharging device of the high temperature treatment furnace according to claim 1, wherein: the cooling cylinder comprises a plurality of feeding pipes, the top ends of the feeding pipes are provided with feeding holes used for being connected with the discharging hole of the high-temperature treatment furnace, and the discharging hole at the bottom end of each feeding pipe is connected with the feeding hole of the cooling storage bin.

8. The continuous cooling discharging device of the high temperature treatment furnace according to claim 7, wherein: the feeding pipe comprises a plurality of feeding pipe sections which are sequentially connected from top to bottom, the adjacent feeding pipe sections are connected through a flange structure, a water-cooling sleeve is sleeved on each feeding pipe section, and a water-cooling ring cavity is formed between the water-cooling sleeve and the feeding pipe sections in an enclosing mode.

9. The continuous cooling discharging device of the high temperature treatment furnace according to claim 8, wherein: and the inner wall of each feeding pipe section is provided with a heat-resistant lining, and the thickness of the heat-resistant lining is gradually reduced from top to bottom.

10. The continuous cooling discharging device of the high temperature treatment furnace according to claim 8, wherein: the height of the feeding pipe section is gradually increased from top to bottom.