阅读说明：本技术 一种核电钢大电炉用镁碳砖生产工艺 (Production process of magnesia carbon brick for nuclear power steel electric furnace ) 是由 王赛其 王赛强 沈跃祥 于 2021-06-24 设计创作，主要内容包括：本发明公开了一种核电钢大电炉用镁碳砖生产工艺,其具体分为称量→混料→成型→烧结,其烧结的工艺是于干燥窑内进行烧结,所述干燥窑其包括有封闭式的腰型孔状结构的轨道,所述窑体的数量为两个分别位于平行部上,通过驱动装置同步实现了两道进窑烧制工序,大大提高了生产的效率,节省设备投入成本,提高企业的经济效益,通过窑车拨动装置拨动旋转凸条,从而带动窑车旋转实现均匀受热,解决了因为受热不均导致干燥成型后镁碳砖内部各项力学性能不均衡,或出现皲裂、变形等严重质量问题,提高产品的成品率,实现了经济效益。(The invention discloses a production process of magnesia carbon bricks for a nuclear power steel large electric furnace, which is divided into weighing → mixing → forming → sintering, wherein the sintering process is carried out in a drying kiln, the drying kiln comprises a closed rail with a waist-shaped hole-shaped structure, the number of kiln bodies is two, the two kiln bodies are respectively positioned on parallel parts, two kiln feeding and sintering processes are synchronously realized through a driving device, the production efficiency is greatly improved, the equipment investment cost is saved, the economic benefit of an enterprise is improved, a rotary convex strip is pushed through a kiln car poking device, so that the kiln car is driven to rotate to realize uniform heating, the serious quality problems of unbalanced mechanical properties, cracking, deformation and the like in the dried and formed magnesia carbon bricks due to nonuniform heating are solved, the yield of products is improved, and the economic benefit is realized.)

1. A production process of magnesia carbon bricks for nuclear power steel electric furnaces is characterized by comprising the following steps: the production process comprises the following steps:

s1: weighing, namely weighing the required raw materials according to the proportion;

s2: mixing materials, namely mixing the raw materials weighed in the step S1;

s3: molding, namely performing compression molding on the raw materials mixed in the step S2;

s4: sintering, namely sintering the raw materials subjected to the press forming in the step S3 to obtain a finished magnesia carbon brick;

sintering is carried out in a drying kiln in the step S4, the drying kiln comprises a kiln body base, a track (2) and a kiln body (5) are fixed on the kiln body base, the track (2) penetrates through the kiln body (5), a kiln car placing plate (3) is connected onto the track (2) in a sliding mode, the kiln car placing plate (3) can slide along the track (2) under the driving of a driving device (4), a kiln car (6) can be installed on the kiln car placing plate (3), and the kiln car (6) rotates under the driving of a kiln car shifting device (8).

2. The production process of the magnesia carbon brick for the nuclear power steel electric furnace according to claim 1, which is characterized in that: the track (2) is of a closed waist-shaped hole-shaped structure and comprises a semicircular arc part and a parallel part, the kiln body (5) is of a straight-through tunnel structure, and the number of the kiln body is 2, and the kiln body is respectively arranged on the parallel part.

3. The production process of the magnesia carbon brick for the nuclear power steel electric furnace according to claim 2, which is characterized in that: when the kiln car (6) is arranged on the kiln car placing plates (3) to wait for entering the kiln, the kiln car placing plates (3) are arranged at the semicircular arc parts.

4. The production process of the magnesia carbon brick for the nuclear power steel electric furnace according to claim 2, which is characterized in that: the driving device (4) comprises a synchronous driving gear, a synchronous driven gear and a circulating chain for connecting the synchronous driving gear and the synchronous driven gear, the synchronous driving gear is connected with the output end of the rotating motor, and one side of the kiln car placing plate (3) is fixed on the circulating chain.

5. The production process of the magnesia carbon brick for the nuclear power steel electric furnace according to claim 4, which is characterized in that: the kiln car (6) comprises a car body, wheels are fixed below the car body, and the car body comprises a plurality of brackets (61) which are distributed at equal intervals along the longitudinal direction.

6. The production process of the magnesia carbon brick for the nuclear power steel electric furnace according to claim 5, which is characterized in that: the bracket (61) comprises a circular outer contour part (62), a plurality of supporting parts (63) are fixed in the outer contour part (62) in parallel at equal intervals, and the supporting parts (62) are of a wave-shaped structure.

7. The production process of the magnesia carbon brick for the nuclear power steel electric furnace according to claim 6, which is characterized in that: kiln car place board (3) including placing bottom plate (31), place bottom plate (31) and be fixed in on the circulation chain, place bottom plate (31) top and rotate through the bearing and be connected with rotor plate (32), rotor plate (32) are circular structure, and equidistant distribution has rotatory sand grip (33) on its circumferencial direction.

8. The production process of the magnesia carbon brick for the nuclear power steel electric furnace according to claim 7, which is characterized in that: the kiln car is characterized in that a limiting bulge is formed on the rotating plate (32), a limiting groove (64) matched with the limiting bulge is fixed below the car body, and the rotating plate (32) and the kiln car (6) are fixed in an interlocking mode through a bolt.

9. The production process of the magnesia carbon brick for the nuclear power steel electric furnace according to claim 7, which is characterized in that: kiln car toggle arrangement (8) are including toggle mechanism (81) and the removal actuating mechanism (82) that drive toggle mechanism (81) were removed that are used for stirring kiln car (6), kiln car toggle arrangement (8) are located kiln body (5) are kept away from one side of actuating device (4), toggle mechanism (81) are including evenly distributed group board (83), group board (83) with rotatory sand grip (33) cooperate, group board (83) stir rotatory sand grip (33) at the in-process of continuous cyclic movement and make rotor plate (32) rotatory.

10. The production process of the magnesia carbon brick for the nuclear power steel electric furnace according to claim 9, which is characterized in that:

the poking mechanism (81) comprises a base (811), a poking motor is fixed in the base (811), the output end of the poking motor penetrates through the base (811) and is fixed with a second synchronous driving gear, a second synchronous driven gear and a second circulating chain for connecting the second synchronous driving gear and the second synchronous driven gear, the second synchronous driving gear and the second synchronous driven gear are rotatably connected with the base (811), the second circulating chain penetrates through the kiln body (5) and is buckled with the kiln body, and poking plates (83) are uniformly distributed on the outer circumference of the second circulating chain;

the moving driving mechanism (82) comprises a first motor (821), a first connecting rod (822) is fixed on the output end of the first motor (821), one end, far away from the first motor (821), of the first connecting rod (822) is connected with a second connecting rod (823) through a connecting rod, the second connecting rod (823) is hinged to the base (811), and the base (811) is connected to a sliding rail in a sliding mode.

Technical Field

The invention relates to the technical field of refractory material production, in particular to a production process of a magnesia carbon brick for a nuclear power steel electric furnace.

Background

The kiln type of the prior magnesia carbon brick production sintering mainly comprises a rotary kiln and a tunnel kiln, wherein the green bricks of the rotary kiln are not moved, but the kiln body moves in a rotary mode to realize the roasting work, although the yield is high and the labor intensity is low, the technical requirement is extremely high during the construction of the rotary kiln, the construction is not favorable, the investment cost is high, the tunnel kiln is simple in structure, low in manufacturing cost and convenient to operate and is suitable for the investment of most factories, the main body of the tunnel kiln is a straight-through tunnel, the inner wall surface of the tunnel is laid with a fireproof heat-insulating material and is sequentially divided into a preheating section, a sintering section and a cooling section along the depth direction of the tunnel, the preheating section is a region for heating and dehumidifying green bricks of magnesia carbon bricks, the sintering section is a high-temperature sintering region for 1300 ℃ in 60-120 minutes when raw materials are used in a fuel combustion mode, the sintering section is also used as a fuel combustion chamber of the tunnel kiln, and the cooling section is a region for cooling and discharging clinker, namely the burned magnesia carbon bricks, the defects of small yield and low efficiency;

meanwhile, the traditional kiln car is a movable flat plate, stacking needs to be carried out on the flat plate, the green bricks on the upper layer are pressed on the green bricks on the lower layer and are stacked layer by layer, the stacking requirement is 'dense edges and sparse edges', so the stacking process is time-consuming and labor-consuming, the danger of brick arrangement is high for workers, the safety of the workers cannot be guaranteed, the stacking collapse of the bricks is easy to occur, the pressure bearing capacity of the green bricks on the bottom layer is maximum, the green bricks are easy to crack or deform, the stacked green bricks are heated unevenly, and cracks are easy to occur.

The problem needs urgently that a nuclear power steel magnesia carbon brick production technology for big electric stove can enough satisfy the characteristics that the output is big of rotary kiln, and to technical requirement high when solving the rotary kiln and building, be unfavorable for building, the technical problem that the input cost is high can also be solved simultaneously that current tunnel kiln output is little, and is inefficient, can solve simultaneously the pile up neatly consuming time hard and be heated inhomogeneously, because it is uneven to be heated, its direct consequence is: the light one causes the unbalance of various mechanical properties in the dried and molded magnesia carbon brick, and the heavy one has serious quality problems such as chap, deformation and the like.

Disclosure of Invention

In order to solve the problems, the invention provides a production process of a magnesia carbon brick for a nuclear power steel electric furnace.

A production process of magnesia carbon bricks for a nuclear power steel electric furnace comprises the following specific steps:

s1: weighing, namely weighing the required raw materials according to the proportion;

s2: mixing materials, namely mixing the raw materials weighed in the step S1;

s3: molding, namely performing compression molding on the raw materials mixed in the step S2;

s4: sintering, namely sintering the raw materials subjected to the press forming in the step S3 to obtain a finished magnesia carbon brick;

and S4, sintering in a drying kiln, wherein the drying kiln comprises a kiln body base, a track and a kiln body are fixed on the kiln body base, the track penetrates through the kiln body, a kiln car placing plate is connected to the track in a sliding manner, the kiln car placing plate can slide along the track under the driving of a driving device, a kiln car can be installed on the kiln car placing plate, and the kiln car can rotate under the driving of a kiln car shifting device.

Preferably, the track is a closed waist-shaped hole-shaped structure and comprises a semicircular arc part and parallel parts, the kiln body is a straight-through tunnel structure, and the number of the kiln body is 2, and the kiln body is respectively arranged on the parallel parts.

Preferably, when the kiln car is mounted on the kiln car placing plate to wait for entering the kiln, the plurality of kiln car placing plates are arranged at the semicircular arc portion.

Preferably, the driving device comprises a synchronous driving gear, a synchronous driven gear and a circulating chain for connecting the synchronous driving gear and the synchronous driven gear, the synchronous driving gear is connected with the output end of the rotating motor, and one side of the kiln car placing plate is fixed on the circulating chain.

Preferably, the kiln car comprises a car body, wheels are fixed below the car body, and the car body comprises a plurality of brackets which are distributed at equal intervals along the longitudinal direction.

Preferably, the bracket comprises a circular outer contour part, a plurality of support parts are fixed in parallel at equal intervals in the outer contour part, and the support parts are of a wave-shaped structure.

Preferably, the kiln car placing plate comprises a placing bottom plate, the placing bottom plate is fixed on the circulating chain, a rotating plate is rotatably connected above the placing bottom plate through a bearing, the rotating plate is of a circular structure, and rotating convex strips are distributed on the rotating plate at equal intervals in the circumferential direction.

Preferably, a limiting bulge is formed on the rotating plate, a limiting groove matched with the limiting bulge is fixed below the vehicle body, and the rotating plate and the kiln car are fixed in an interlocking mode through a bolt.

Preferably, the kiln car shifting device comprises a shifting mechanism for shifting the kiln car and a moving driving mechanism for driving the shifting mechanism to move, the kiln car shifting device is located on one side, away from the driving mechanism, of the kiln body, the shifting mechanism comprises shifting plates which are uniformly distributed, the shifting plates are matched with the rotating convex strips, and the shifting plates shift the rotating convex strips to rotate the rotating plate in the continuous circulating moving process.

Preferably, the shifting mechanism comprises a base, a shifting motor is fixed in the base, the output end of the shifting motor penetrates through the base and is fixed with a second synchronous driving gear, a second synchronous driven gear and a second circulating chain for connecting the second synchronous driving gear and the second synchronous driven gear, the second synchronous driving gear and the second synchronous driven gear are both rotatably connected with the base, the second circulating chain penetrates through the kiln and is buckled with the kiln, and the shifting plates are uniformly distributed on the periphery of the second circulating chain;

the mobile driving mechanism comprises a first motor, a first connecting rod is fixed at the output end of the first motor, a second connecting rod is connected to one end, far away from the first motor, of the first connecting rod, the second connecting rod is hinged to the base, and the base is connected to the sliding rail in a sliding mode.

The invention has the beneficial effects that:

(1) the invention discloses a production process of magnesia carbon bricks for a nuclear power steel large electric furnace, which comprises a kiln body base, wherein a track and a kiln body are fixed on the kiln body base, the track is of a closed waist-shaped hole-shaped structure and comprises a semi-circular arc part and a parallel part, and the number of the kiln bodies is two, and the two kiln bodies are respectively positioned on the parallel part.

(2) The invention discloses a production process of magnesia carbon bricks for a nuclear power steel large electric furnace, wherein a kiln car comprises a plurality of brackets which are distributed at equal intervals along the longitudinal direction, each bracket comprises an outer contour part and a plurality of supporting parts, each supporting part is of a wave-shaped structure, the wave-shaped structure can support a green brick and simultaneously reduce the contact area with the green brick as far as possible, the green brick firing quality is ensured, meanwhile, the green bricks are placed on the brackets in a layering mode, the stacking time and difficulty of workers can be reduced, and the phenomena that the green bricks collapse and the green bricks at the bottom are pressed and cracked or deformed in the traditional stacking mode in which the green bricks are stacked layer by layer are avoided.

(3) The invention discloses a production process of magnesia carbon bricks for a nuclear power steel electric furnace, wherein a kiln car poking device is used for poking rotary raised lines on a rotary plate so as to drive the kiln car to rotate, so that green bricks placed on the kiln car can slowly rotate no matter the green bricks are positioned in a preheating section, a sintering section or a cooling section, uniform heating is realized, the serious quality problems of unbalanced mechanical properties, cracking, deformation and the like in the dried and formed magnesia carbon bricks due to nonuniform heating are solved, the yield of products is improved, the economic benefit is realized, meanwhile, a plurality of kiln cars can be driven to rotate through the kiln car poking device, and the function can be realized on the structure of a kiln body without damage, and is more ingenious and flexible.

Drawings

FIG. 1 is a schematic view of a three-dimensional structure of a production process of a magnesia carbon brick for a nuclear power steel electric furnace;

FIG. 2 is a schematic structural view of a kiln car shifting device of the production process of magnesia carbon bricks for a nuclear power steel electric furnace;

FIG. 3 is a schematic structural view of the kiln car of the present invention mounted on a kiln car placing plate;

FIG. 4 is a schematic structural view of a kiln car of the production process of magnesia carbon bricks for a nuclear power steel electric furnace;

FIG. 5 is a schematic view of a part of the structure of the process for producing magnesia carbon bricks for a nuclear steel electric furnace, in which bricks are piled on a supporting plate.

In the figure: the kiln car preheating device comprises a rail 2, a kiln car placing plate 3, a placing bottom plate 31, a rotating plate 32, a rotating convex strip 33, a driving device 4, a kiln body 5, a preheating section 51, a sintering section 52, a cooling section 53, a kiln car 6, a bracket 61, an outer contour part 62, a supporting part 63, a kiln car shifting device 8, a shifting mechanism 81, a base 811, a moving driving mechanism 82, a shifting plate 83, a first connecting rod 822, a first motor 821 and a second connecting rod 823.

Detailed Description

The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, 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", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. 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, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

As shown in figures 1-5, a production process of magnesia carbon bricks for a nuclear power steel electric furnace comprises the following steps:

s1: weighing 55-75% of aluminum magnesium carbon particles, 10-15% of aluminum magnesium carbon fine powder, 5-10% of fused magnesia fine powder, 1-2% of metal aluminum powder, 1-2% of metal silicon powder, 3-8% of flake graphite and 2-4% of a bonding agent according to the proportion;

s2: mixing materials, namely mixing the raw materials weighed in the step S1;

s3: molding, namely performing compression molding on the raw materials mixed in the step S2 through a press;

s4: sintering, namely sintering the raw materials subjected to the press forming in the step S3 to obtain a finished magnesia carbon brick;

and S4, sintering in a drying kiln, wherein the drying kiln comprises a kiln body and a kiln body base, a track 2 and a kiln body 5 are fixed on the kiln body base, the track 2 is of a closed waist-shaped hole-shaped structure and comprises a semi-arc part and a parallel part, two kiln bodies 5 are respectively positioned on the parallel part, a kiln car placing plate 3 is connected onto the track 2 in a sliding manner, the kiln car placing plate 3 can slide along the track 2 under the driving of a driving device 4, a kiln car 6 can be arranged on the kiln car placing plate 3, and the kiln car 6 rotates under the driving of a kiln car shifting device 8.

Specifically, the driving device 4 comprises a synchronous driving gear, a synchronous driven gear and a circulating chain for connecting the synchronous driving gear and the synchronous driven gear, the synchronous driving gear is connected with the output end of the rotating motor, and one side of the kiln car placing plate 3 is fixed on the circulating chain.

Specifically, the kiln body 5 is a straight-through tunnel kiln, which includes a preheating section 51, a sintering section 52 and a cooling section 53, and the internal structure thereof is conventional in the art, and therefore, the details thereof are not repeated.

Specifically, the kiln car 6 comprises a car body, wheels are fixed below the car body, the car body comprises a plurality of brackets 61 which are distributed at equal intervals along the longitudinal direction, the bracket 61 comprises a circular outer contour part 62, a plurality of supporting parts 63 are fixed in the outer contour part 62 in parallel at equal intervals, the supporting parts 62 are in a wave-shaped structure, the wave-shaped structure can support the adobe bricks and simultaneously reduce the contact area with the adobe bricks as much as possible, ensure the quality of green brick firing, meanwhile, the green bricks are respectively placed on the bracket 61, so that the stacking time of workers can be reduced, the phenomena that the green bricks on the bottom layer are easy to stack and collapse and the green bricks on the bottom layer are easy to crack or deform due to large pressure in the traditional stacking mode of stacking layer by layer are avoided, the position of the supporting part 63 is lower than that of the outer contour part 62, so that the problem that bricks on the edge slide off in the rotation process of the kiln car 6 is avoided. The green bricks are placed on the bracket 61 in a mode shown in fig. 5, the distance between the green bricks is guaranteed to be 40-70 mm, the outer contour part 62 is circular, and the green bricks are heated uniformly, and the temperature distribution of the circular structure is also distributed uniformly in a ring shape.

Specifically, the kiln car placing plate 3 comprises a placing bottom plate 31, the placing bottom plate 31 is fixed on the circulating chain, a rotating plate 32 is rotatably connected above the placing bottom plate 31 through a bearing, the rotating plate 32 is of a circular structure, rotating convex strips 33 are distributed on the rotating plate 32 at equal intervals in the circumferential direction, a limiting protrusion is formed on the rotating plate 32, a limiting groove 64 matched with the limiting protrusion is fixed below the car body, the kiln car 6 is conveniently installed on the kiln car placing plate 3 through the limiting groove 64 and the limiting protrusion, an installation groove for installing wheels is formed on the rotating plate 32, so that after the kiln car 6 is placed on the kiln car placing plate 3, the wheels cannot slide, the fixing performance of the wheels is stronger, and finally, the kiln car placing plate and the kiln car placing plate are fixed through interlocking of a plurality of bolts which are not embodied in the drawing and are conventional parts in the field, therefore, it is not repeated herein.

Specifically, the kiln car shifting device 8 comprises a shifting mechanism 81 for shifting the kiln car 6 and a moving driving mechanism 82 for driving the shifting mechanism 81 to move, the kiln car shifting device 8 is positioned on one side of the kiln body 5 far away from the driving device 4, the shifting mechanism 81 comprises uniformly distributed shifting plates 83, the shifting plates 83 are matched with the rotating convex strips 33, and the shifting plates 83 shift the rotating convex strips 33 to rotate the rotating plate 32 in the continuous circulating movement process;

the toggle mechanism 81 comprises a base 811, a toggle motor is fixed in the base 811, the output end of the toggle motor penetrates through the base 811 and is fixed with a second synchronous driving gear, a second synchronous driven gear and a second circulating chain for connecting the second synchronous driving gear and the second synchronous driven gear, the second synchronous driving gear and the second synchronous driven gear are both rotationally connected with the base 811, the second circulating chain penetrates through the kiln body 5 and is buckled with the kiln body, and the toggle plates 83 are uniformly distributed on the periphery circle of the second circulating chain;

the moving driving mechanism 82 comprises a first motor 821, a first connecting rod 822 is fixed on an output end of the first motor 821, a second connecting rod 823 is connected to one end of the first connecting rod 822 far away from the first motor 821, the second connecting rod 823 is hinged to the base 811, and the base 811 is connected to a sliding rail in a sliding manner; stir rotatory sand grip 33 on the rotor plate 32 through kiln car toggle gear 8 to it is rotatory to drive kiln car 6, make the adobe of placing on kiln car 6 be in the preheating section, sintering section or the section of cooling, the homoenergetic enough carries out slow rotation, realize the thermally equivalent, it is unbalanced to have solved because being heated inequality and leading to inside each item mechanical properties of dry shaping back magnesia carbon brick, or serious quality problems such as rhagadia, deformation appear, the yield of product has been improved, economic benefits has been realized.

The specific operation method comprises the following steps: when the kiln car 6 filled with the green bricks is moved to the drying kiln of the invention, the kiln car 6 is grabbed and installed on the kiln car placing plate 3 through the truss car, the bolt is locked manually, meanwhile, the position of the kiln car placing plate 3 can be adjusted through the driving mechanism 4 in the process of gradually installing the kiln car 6 to install the kiln car 6, after the kiln car 6 is installed, all the kiln car placing plates 3 are arranged at two semi-arc parts at the moment, as shown in figure 1, then the driving device 4 drives the kiln car placing plate 3 to move, the kiln car placing plates 3 at the two semi-arc parts respectively enter two kiln bodies 5 and are positioned at the preheating section 51 of the kiln bodies 5, at the moment, the driving device 4 stops rotating, the first motor 821 rotates for a certain angle, the first connecting rod 822 rotates towards the direction of the base 811, the base 811 is pushed towards the direction of the kiln bodies 5 along the sliding rails through the second connecting rod connected with the connecting rod, at the moment, the shifting motor rotates, the rotating raised strips 33 are shifted through the shifting plate 83 to enable the green bricks to rotate and uniformly preheat, when the green bricks need to enter the sintering section 52 after the preheating time is finished, the first motor 821 rotates reversely for a certain angle to pull back the base 811 along the sliding rails, meanwhile, the driving device 4 works to continuously drive the kiln car placing plate 3 to move into the sintering section 52 for sintering, then the driving device 4 stops rotating, the first motor 821 rotates for a certain angle, the first connecting rod 822 rotates towards the direction of the base 811, the base 811 is pushed towards the direction of the kiln body 5 along the sliding rails through the second connecting rod 823 connected with the connecting rod, at the moment, the shifting motor rotates, the rotating raised strips 33 are shifted through the shifting plate 83 to enable the green bricks to rotate and uniformly heat, when the green bricks need to enter the cooling section 53 after the sintering time is finished, the first motor 821 rotates reversely for a certain angle to pull back the base 811 along the sliding rails, and simultaneously, the driving device 4 works, continue to drive kiln car and place board 3 and move and cool down in cooling section 53, then 4 stall of drive arrangement this moment, first motor 821 is rotatory certain angle, first connecting rod 822 rotates to base 811 direction, second connecting rod 823 through being connected with it pushes base 811 to the kiln body 5 direction along the slide rail, stir the motor this moment and rotate, stir rotatory sand grip 33 through dialling board 83 and make the rotatory even cooling of adobe, after the cooling is accomplished, drive arrangement 4 work drives the kiln car and places board 3 and go out the kiln.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.