CN116293710A - Uniform distributing device of plasma gasification furnace - Google Patents

Abstract

The invention discloses a uniform distributing device of a plasma gasification furnace, which comprises a furnace shell, a furnace cover, a feeding device, a storage bin, an annular supporting body, an annular blocking body, a slewing bearing and a driving device. The annular supporting body is sleeved outside the furnace shell in a sealing and fixed manner, and a containing cavity is arranged between the annular supporting body and the furnace shell; the annular blocking body is sleeved outside the furnace cover in a sealing and fixed manner, and the lower end of the annular blocking body extends downwards into the liquid contained in the containing cavity; the inner ring of the slewing bearing is fixedly sleeved outside the annular support body, the outer ring of the slewing bearing is fixedly connected with the furnace cover, so that a gap communicated with the inside of the furnace shell is defined between the furnace cover and the furnace shell under the support of the slewing bearing, and the outer side wall of the outer ring is provided with external teeth for meshing transmission; the driving device is positioned outside the outer ring and drives the outer ring to rotate around the inner ring together with the furnace cover, the feeding device and the bin through meshed transmission with the outer teeth; so as to achieve the purposes of uniform distribution, material sealing and convenient pressure relief after overpressure in the furnace shell.

Description

Uniform distributing device of plasma gasification furnace

Technical Field

The invention relates to the field of waste treatment, in particular to a uniform distributing device of a plasma gasification furnace.

Background

Harmless treatment of solid wastes, particularly hazardous solid wastes, is a worldwide problem, and the treatment technologies commonly used internationally at present mainly comprise methods such as a solidification landfill method, an incineration method, a high-temperature melting technology and the like.

Wherein, the plasma gasification stove is the equipment that realizes high temperature melting technique, it is a vertical fixed stove type, because the feed arrangement in its cloth mechanism and the feed bin in the cloth mechanism can not rotate relative the stove outer covering in the cloth mechanism because of fixed assembly, when the diameter of plasma gasification stove is greater than 2.5 meters, the feed arrangement has the inhomogeneous defect of cloth to the feed of stove outer covering this moment to and because of the inhomogeneous operation stability and the productivity of plasma gasification stove produce very big influence.

Therefore, a uniform distribution device of a plasma gasification furnace, which is uniform in distribution, ensures material sealing and facilitates pressure relief after overpressure in the furnace shell, is needed to overcome the defects.

Disclosure of Invention

The invention aims to provide a uniform distribution device of a plasma gasification furnace, which is uniform in distribution, ensures material sealing and is convenient for pressure relief after overpressure in the furnace shell.

In order to achieve the purpose, the uniform distribution device of the plasma gasification furnace comprises a furnace shell, a furnace cover, a feeding device, a storage bin, an annular supporting body, an annular blocking body, a slewing bearing and a driving device. The furnace cover is positioned above the furnace shell, the feeding device and the bin are arranged on the furnace cover, and the feeding device enables materials in the bin to be conveyed into the furnace shell; the annular support body is sleeved outside the furnace shell, the upper end of the annular support body extends upwards, the position, away from the upper end of the annular support body, of the annular support body along the upper and lower directions of the furnace shell is fixedly connected with the furnace shell in a sealing manner, and a containing cavity with an upward cavity opening for containing liquid is arranged between the annular support body and the furnace shell; the annular blocking body is sleeved outside the furnace cover, the lower end of the annular blocking body downwards extends into the liquid contained in the containing cavity, and the position, away from the lower end of the annular blocking body along the vertical direction of the furnace shell, of the annular blocking body is fixedly connected with the furnace cover in a sealing manner; the inner ring of the slewing bearing is fixedly sleeved outside the annular support body, the outer ring of the slewing bearing is fixedly connected with the furnace cover, so that a gap communicated with the inside of the furnace shell is defined between the furnace cover and the furnace shell under the support of the slewing bearing, a plurality of external teeth which are used for meshing transmission and are circumferentially arranged along the outer ring are arranged on the outer side wall of the outer ring, the driving device is positioned outside the outer ring, and the driving device drives the outer ring to rotate around the inner ring together with the furnace cover, the feeding device and the bin through meshing transmission with the external teeth.

Preferably, the furnace shell is sleeved with an annular bearing body for bearing the annular bearing body from the lower part, the annular bearing body is fixedly connected with the furnace shell in a sealing way, the lower end of the annular bearing body is fixedly connected with the annular bearing body in a sealing way, and the annular bearing body, the annular bearing body and the furnace shell jointly define the containing cavity.

Preferably, the annular supporting body horizontally extends from the outer side adjacent to the upper end of the annular supporting body to form an annular supporting plate for supporting the inner ring from the lower part of the inner ring, the inner ring is fixedly connected with the annular supporting plate, and triangular reinforcing ribs are respectively fixed between the annular supporting plate and the annular supporting body and between the annular supporting body and the furnace shell.

Preferably, the uniform distribution device further comprises a ring-shaped supporting body, wherein the ring-shaped supporting body comprises a ring-shaped horizontal body sleeved outside the furnace cover and horizontally stretched, and a ring-shaped upper body and a ring-shaped lower body fixedly connected with the ring-shaped horizontal body and downwards stretched along the upper and lower directions of the furnace shell, the outer ring is fixed on the ring-shaped upper body and the ring-shaped lower body, the ring-shaped horizontal body is fixedly connected with the furnace cover, and triangular reinforcing ribs are respectively fixed between the ring-shaped horizontal body and the furnace cover and between the ring-shaped horizontal body and the ring-shaped upper body and between the ring-shaped upper body and the ring-shaped lower body.

Preferably, the uniform distribution device of the invention further comprises an air pipe penetrating through the annular support body and used for feeding inert gas into the furnace shell, a first end of the air pipe extends upwards out of the liquid contained in the containing cavity and is arranged in the annular barrier body, and a second end of the air pipe is positioned outside the annular support body.

Preferably, the plurality of air pipes are arranged at intervals along the circumferential direction of the annular supporting body, and the first ends of the air pipes are also adjacent to the gaps.

Preferably, the annular support body is provided with a water inlet and a water outlet positioned above the water inlet, the number of the water inlet and the water outlet is one or more, the plurality of water inlets are arranged at intervals along the circumferential direction of the annular support body, and the plurality of water outlets are arranged at intervals along the circumferential direction of the annular support body.

Preferably, the uniform distribution device further comprises an annular sliding contact line for supplying power to the feeding device, and the feeding device is positioned in the sliding contact line.

Preferably, the driving device comprises a gear meshed with the external teeth for transmission and a motor for driving the gear to rotate.

Preferably, the driving device further comprises a speed reducer, the input end of the speed reducer is connected with the motor in an assembling way, the gear is fixedly sleeved at the output end of the speed reducer, and the output end of the speed reducer is aligned or staggered with the input end of the speed reducer along the up-down direction of the furnace shell.

Compared with the prior art, the annular supporting body, the annular blocking body, the slewing bearing and the driving device are arranged, so that in the feeding process, the driving device drives the outer ring, the furnace cover, the feeding device and the storage bin to rotate around the inner ring together through meshing transmission with the outer teeth, and the feeding device enables the material of the storage bin to be evenly paved in the furnace shell along the rotation direction; simultaneously, prevent outside air from entering the stove outer covering along the gap with the mode of liquid seal (i.e. stretch into the liquid that holds the chamber by annular separation body) and get into inside the stove outer covering, guarantee the sealed of material, still be convenient for the inside pressure of stove outer covering to surpass out and can be at this pressure release.

Drawings

Fig. 1 is a plan view of a uniform distribution device of a plasma gasification furnace according to the present invention, viewed from the top down.

Fig. 2 is an internal view taken along line A-A in fig. 1.

Fig. 3 is an internal view taken along line B-B in fig. 1.

Fig. 4 is an enlarged view of a portion C in fig. 2.

Fig. 5 is an enlarged view of the portion D in fig. 2.

Fig. 6 is an internal view of the modification of fig. 2.

Detailed Description

In order to describe the technical content and constructional features of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.

Referring to fig. 1 to 3, the plasma gasification furnace including the uniform distribution device 100 of the present invention is applied to treat hazardous waste, but may be applied to treat other non-hazardous waste. The uniform distribution device 100 comprises a furnace shell 10, a furnace cover 20, a feeding device 30, a storage bin 40, an annular supporting body 50, an annular blocking body 60, a slewing bearing 70 and a driving device 80. The furnace cover 20 is located above the furnace shell 10, and optionally, in fig. 1, as an example, the furnace cover 20 and the furnace shell 10 are both rotating bodies with circular cross-section outer contours, and of course, according to actual needs, the furnace cover 20 and the furnace shell 10 may also have other structures with regular polygons in cross-section outer contours, so the method is not limited to fig. 1.

Meanwhile, the feeding device 30 and the bin 40 are installed on the furnace cover 20, the furnace cover 20 provides supporting function for the feeding device 30 and the bin 40, the feeding device 30 enables materials in the bin 40 to be conveyed into the furnace shell 10, alternatively, with reference to fig. 1 to 3, the feeding device 30 comprises a motor 31 located outside the bin 40, a feeding impeller 32 located in the bin 40 and a rotating shaft 33 rotatably penetrating through the bin 40, the feeding impeller 32 is fixedly connected with the rotating shaft 33, the rotating shaft 33 is fixedly connected with the motor 31, and the working motor 31 drives the feeding impeller 32 to rotate in the bin 40 through the rotating shaft 33, so that the purpose of conveying the materials in the bin 40 into the furnace shell 10 is achieved. It should be noted that, when the feeding device 30 includes the motor 31, the feeding impeller 32 and the rotating shaft 33, the feeding device 30 is indirectly mounted on the furnace cover 20 through the bin 40, and of course, according to actual needs, the feeding device 30 may also be directly mounted on the furnace cover 20, so that the bin 40 is indirectly mounted on the furnace cover 20 through the feeding device 30, and in fig. 6, the feeding device 30 includes the device housing 34 mounted on the furnace cover 20, the motor 31 located outside the device housing 34, the feeding impeller 32 located in the device housing 34, and the rotating shaft 33 rotatably penetrating through the device housing 34, the feeding impeller 32 is fixedly connected with the rotating shaft 33, and the rotating shaft 33 is fixedly connected with the motor 31, and the bin 40 is located above the device housing 34 and assembled with the device housing 34, so that the purpose that the bin 40 is indirectly mounted on the furnace cover 20 through the device housing 34 can be achieved.

Furthermore, the annular supporting body 50 is sleeved outside the furnace shell 10, the upper end 51 of the annular supporting body 50 extends upwards, and the position (such as, but not limited to, the lower end 52 described below) of the annular supporting body 50, which is far away from the upper end 51 of the annular supporting body 50 along the up-down direction of the furnace shell 10, is fixedly connected with the furnace shell 10 in a sealing manner, so that the fixed connection position of the annular supporting body 50 and the furnace shell 10 is sealed, and leakage of liquid from the fixed connection position of the annular supporting body 50 and the furnace shell 10 is avoided; the annular supporting body 50 and the furnace shell 10 are provided with a containing cavity 91 with an upward cavity opening 911 (see fig. 5) for containing liquid, alternatively, as an example, the annular supporting body 50 is a circular annular supporting body, and of course, the annular supporting body 50 can also be a supporting body with a regular polygon cross section outline according to actual needs, so long as the annular supporting body 50 is ensured not to cause obstruction to the annular blocking body 60 in the rotation process of the annular blocking body 60. It should be noted that, the annular supporting body 50 herein refers to the annular supporting body 50 being closed end to end in the circumferential direction, rather than being opened end to end.

Then, the annular blocking body 60 is sleeved outside the furnace cover 20, the lower end 61 of the annular blocking body 60 extends downwards into the liquid 200 contained in the containing cavity 91, and the position (such as but not limited to the upper end shown in fig. 4 and 5) of the annular blocking body 60, which is far away from the lower end 61 of the annular blocking body 60 along the up-down direction of the furnace shell 10, is fixedly connected with the furnace cover 20 in a sealing manner, so that the fixed connection part of the annular blocking body 60 and the furnace cover 20 is sealed, and gas leakage from the fixed connection part of the annular blocking body 60 and the furnace cover 20 is prevented; alternatively, referring to fig. 1 to 3, as an example, the depth of the annular barrier 60 extending into the liquid 200 is between 100 and 200 mm (including the end point value), and the annular barrier 60 is a circular annular barrier, and of course, the annular barrier 60 may be a barrier with a regular polygon cross-section profile according to actual needs, so long as it is ensured that the annular barrier 60 does not collide with the annular support 50 during rotation. It should be noted that, the annular blocking body 60 herein refers to that the annular blocking body 60 is closed end to end in the circumferential direction, rather than being opened end to end.

Finally, the inner ring 71 of the slewing bearing 70 is fixedly sleeved outside the annular supporting body 50, and is fixedly connected with the annular supporting body 50 in a detachable manner such as a screw, or is fixed in an undetachable manner such as welding so that the inner ring 71 is fixedly supported by the annular supporting body 50, and the outer ring 72 of the slewing bearing 70 is fixedly connected with the furnace cover 20 in a detachable manner such as a screw, or is fixed in an undetachable manner such as welding so that the outer ring 72 is fixedly supported by the furnace cover 20, so that a gap 92 communicated with the furnace shell interior 11 is defined between the furnace cover 20 and the furnace shell 10 under the support of the slewing bearing 70, alternatively, as an example, the dimension P of the gap 92 is shown in fig. 5 ₁ Greater than 0 and less than or equal to 5 mm, of course, the dimension P of the gap 92 is according to actual needs ₁ Other embodiments are possible, and therefore, the invention is not limited thereto; and the outer sidewall of the outer ring 72 is provided with a plurality of external teeth 73 for meshing transmission and arranged along the circumferential direction of the outer ring 72, alternatively, as an example, the external teeth 73 are arranged on the outer ring 72 for one whole circle, so that the outer ring 72 can rotate for 360 degrees; when it is required to control the rotation of the outer ring 72 within a range less than 360 degrees, the outer teeth 73 are not arranged on the outer ring 72 for a complete circle, that is, the sum of the central angles occupied by all the outer teeth 73 after the arrangement is less than 360 degrees, so that the arrangement of the outer teeth 73 on the outer ring 72 is determined by the range in which the outer ring 72 is required to rotate. While the driving device 80 is located outside the outer ring 72, the driving device 80 drives the outer ring 72 to rotate around the inner ring 72 together with the furnace cover 20, the feeding device 30 and the bin 40 through engagement transmission with the outer teeth 73, alternatively, as an example, the driving device 80 may be fixedly connected with the furnace shell 10, and the furnace shell 10 provides a fixed supporting function for the driving device 80, and of course, according to actual needs, the driving device 80 may also be fixedly connected with an external object, such as, but not limited to, the ground on which the uniform distribution device 100 of the present invention is mounted. More specifically, the following is:

as shown in fig. 2 to 6, the furnace shell 10 is sleeved with the annular supporting body 93 for supporting the annular supporting body 50 from below, the annular supporting body 93 is fixedly connected with the furnace shell 10 in a sealing manner, so that the fixed connection position between the annular supporting body 93 and the furnace shell 10 is sealed, the lower end 52 of the annular supporting body 50 is fixedly connected with the annular supporting body 93 in a sealing manner, the fixed connection position between the lower end 52 and the annular supporting body 93 is sealed, and the annular supporting body 50, the annular supporting body 93 and the furnace shell 10 jointly define the containing cavity 91, that is, after the annular supporting body 93 is introduced, the annular supporting body 50 is indirectly fixed at the furnace shell 10 through the annular supporting body 93, so that convenience in assembly is improved. Meanwhile, the annular supporting body 50 horizontally extends from the outer side of the upper end 51 of the annular supporting body 50 to an annular supporting plate 94 for supporting the inner ring 71 from the lower side of the inner ring 71, the inner ring 71 is fixedly connected with the annular supporting plate 94, for example, in a detachable manner such as a screw, or in a non-detachable manner, of course, the annular supporting plate 94 and the annular supporting body 50 and the annular supporting body 93 and the furnace shell 10 are fixedly connected with triangular reinforcing ribs 95 respectively, and the final purpose is to increase the supporting capability of the annular supporting body 50 on the outer ring 72, the furnace cover 20, the feeding device 30 and the storage bin 40, so that the stability and smoothness of the rotation of the outer ring 72, the furnace cover 20, the feeding device 30 and the storage bin 40 around the inner ring 71 are ensured. Specifically, the annular supporter 93 protrudes outwardly from the lower end 52 of the annular supporter 50 in a state shown in fig. 4 and 5 to ensure the reliability of the assembly between the lower end 52 of the annular supporter 50 and the annular supporter 93. More specifically, the annular supporting body 93 and the annular supporting plate 94 are each of a circular annular structure, and of course, both the annular supporting body 93 and the annular supporting plate 94 may be of a structure having a regular polygon outer profile in cross section according to actual needs. Here, the annular support 93 and the annular support plate 94 mean that the annular support 93 and the annular support plate 94 are closed end to end in the respective circumferential directions, and not in an open end to end state.

As shown in fig. 1 to 6, the uniform distribution device 100 of the present invention further comprises a ring-shaped supporting body 96, wherein the ring-shaped supporting body 96 comprises a ring-shaped horizontal body 961 sleeved outside the furnace cover 20 and extending horizontally, and a ring-shaped upper and lower body 962 fixedly connected with the ring-shaped horizontal body 961 and extending downward along the up-down direction of the furnace shell 20, and the outer ring 72 is fixed on the ring-shaped upper and lower body 962, for example, fixed on the lower end part of the ring-shaped upper and lower body 962, and can be fixedly connected in a detachable manner such as a screw or can be fixedly connected in a non-detachable manner such as welding; the annular horizontal body 961 is fixedly connected with the furnace cover 20, for example, by adopting a welding mode or the like, and triangular reinforcing ribs 97 are respectively fixed between the annular horizontal body 961 and the furnace cover 20 and between the annular horizontal body 961 and the annular upper and lower bodies 962, so that the bearing capacity of the annular bearing body 96 to the outer ring 72 is increased by means of the reinforcing ribs 97, and the stability of the fixation of the outer ring 72 and the furnace cover 20 is ensured. Specifically, in fig. 1, eight reinforcing ribs 97 are provided between the annular horizontal body 961 and the furnace cover 20, and are arranged at equal intervals along the circumferential direction of the annular horizontal body 961, so that a central angle between any two adjacent reinforcing ribs 97 is 45 degrees, and the number of the reinforcing ribs 97 is obtained by dividing 360 degrees by the number of the reinforcing ribs 97; the annular horizontal body 961 and the annular upper and lower bodies 962 are each of annular structures, but may have other structures having a cross-sectional outer contour of a regular polygon. It should be noted that, here, the annular horizontal body 961 and the annular upper and lower body 962 refer to that the annular horizontal body 961 and the annular upper and lower body 962 are closed end to end in respective circumferential directions, rather than being opened end to end, and the reinforcing ribs 97 between the annular horizontal body 961 and the furnace cover 20 may be odd, or other even numbers.

As shown in fig. 2, 4 and 6, the uniform distribution device 100 of the present invention further comprises an air pipe 98 penetrating the annular supporting body 50 and used for feeding inert gas (such as nitrogen) into the furnace shell 20, a first end 981 of the air pipe 98 extends upwards out of the liquid 200 contained in the containing cavity 91 and is placed in the annular blocking body 60, and a second end 982 of the air pipe 98 is located outside the annular supporting body 50; the nitrogen gas sent by the air pipe 98 enters the furnace shell inside 11 through the gap 92 by means of the air pipe 98, so that the gas in the furnace shell inside 11 is prevented from passing through the gap 92, and the particulate matters in the furnace shell inside 11 are prevented from passing through the gap 92 to pollute the liquid 200 contained in the containing cavity 91, thereby blocking the liquid seal and requiring shutdown maintenance. Specifically, as an example, the air tubes 98 are plural, for example, even in number, and the air tubes 98 are arranged at intervals in the circumferential direction of the annular support body 50, increasing the anti-clogging effect; the first end 981 of the gas tube 98 is also positioned adjacent the slit 92 to reduce the spacing between the gas tube 98 and the slit 92, thereby reducing the path of nitrogen into the slit 92.

As shown in fig. 2, 5 and 6, the annular supporting body 50 is provided with a water inlet 53 and a water outlet 54 above the water inlet 53, the water inlet 53 and the water outlet 54 are respectively a plurality, for example an even number, of water inlets 53 are arranged at intervals along the circumferential direction of the annular supporting body 50, and the water outlets 54 are arranged at intervals along the circumferential direction of the annular supporting body 50, so that the liquid 200 in the containing cavity 91 can be circulated, however, the water inlet 53 and the water outlet 54 can be one according to actual needs, and in addition, the height of the water outlet 54 determines the height of the liquid seal.

As shown in fig. 1 to 3 and fig. 6, the uniform distribution device 100 of the present invention further includes a loop-shaped trolley line 99 for supplying power to the feeding device 30, and the feeding device 30 is positioned in the trolley line 99 to satisfy the power supply requirement of the rotary feeding device 30 by means of the design of the trolley line 99.

As shown in fig. 2 and 5, the driving device 80 includes a gear 81 meshed with the external teeth 73 for transmission, a motor 82 for driving the gear 81 to rotate, and a decelerator 83, an input end 831 of the decelerator 83 is assembled and connected with the motor 82, the gear 81 is fixedly sleeved at an output end 832 of the decelerator 83, and the output end 832 of the decelerator 83 is arranged in a dislocation manner with the input end 831 of the decelerator 83 along the up-down direction of the furnace shell 10; the design can simplify the structure of the driving device 80, and further enables the motor 82 to output larger torque for the gear 81 through the speed reducer 83, so that the power requirement for driving the outer ring 72, the furnace cover 20, the feeding device 30 and the bin 40 to rotate around the inner ring 71 is met. It can be understood that, according to actual needs, the speed reducer 83 may be omitted, and when the speed reducer 83 is omitted, the motor 82 directly drives the gear 81 to rotate, and the gear 81 may be directly sleeved on the output shaft of the motor 82 or indirectly sleeved on the output shaft of the motor 82.

Compared with the prior art, by arranging the annular supporting body 50, the annular blocking body 60, the slewing bearing 70 and the driving device 80, in the feeding process, the driving device 80 drives the outer ring 72, the furnace cover 20, the feeding device 30 and the storage bin 40 to rotate around the inner ring 71 through the meshing transmission with the outer teeth 73, so that the feeding device 30 enables the material of the storage bin 40 to be uniformly paved in the furnace shell 10 along the rotation direction; at the same time, the liquid (such as but not limited to water source) is used for sealing (i.e. the annular blocking body 60 stretches into the liquid 200 contained in the containing cavity 91) to prevent external air from entering the furnace shell interior 11 along the gap 92, so as to ensure the sealing of materials, and facilitate the pressure of the furnace shell interior 11 to be discharged there, for example, in fig. 4, when the pressure of the furnace shell interior 11 is over-pressurized, the gas in the furnace shell interior 11 enters the liquid 200 contained in the containing cavity 91 through the gap 92, then is discharged upwards from the liquid 200, finally passes through the gap between the inner ring 71 and the outer ring 72, the gap between the inner ring 71 and the annular supporting body 50, and the gap between the outer ring 72 and the furnace cover 20 to leak into the outside.

It should be noted that, in the drawings, the direction indicated by the arrow E is the top-to-bottom direction of the furnace shell 10.

The foregoing disclosure is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims (10)

1. The utility model provides a even distributing device of plasma gasifier, includes the stove outer covering, is located stove outer covering top the bell and install in feeding device and feed bin on the stove outer covering, feeding device makes material in the feed bin is in the stove outer covering carries, its characterized in that, even distributing device still includes annular support body, annular barrier body, slewing bearing and drive arrangement, the annular support body suit in the stove outer covering, the upper end of annular support body upwards extends, the annular support body along the upper and lower direction of stove outer covering keep away from this annular support body the position of upper end with the stove outer covering is sealed fixed connection, annular support body with have a chamber mouth that is used for holding liquid upwards between the stove outer covering, the annular barrier body suit in the bell is outside, the lower extreme of annular barrier body stretches into downwards in the liquid that holds in the chamber, the annular barrier body along the upper and lower direction of stove outer covering keeps away from this annular barrier body lower extreme position and be in the stove outer lane is in the fixed connection with the bell is in the sealing connection with the inner lane is located in the outer lane is fixed connection with the bell, is equipped with the outer lane is in the outer lane is fixed connection with the outer lane is used for the outer lane is fixed connection with the outer lane is passed through to the bell and is fixed to the outer lane is connected with the outer lane is fixed to the outer lane is used for the outer lane is meshed with the outer lane.

2. The uniform distribution device according to claim 1, wherein the furnace shell is sleeved with an annular supporting body for supporting the annular supporting body from below, the annular supporting body is fixedly connected with the furnace shell in a sealing manner, the lower end of the annular supporting body is fixedly connected with the annular supporting body in a sealing manner, and the annular supporting body, the annular supporting body and the furnace shell jointly define the containing cavity.

3. The uniform distribution device according to claim 2, wherein an annular bearing plate for bearing the inner ring from below the inner ring horizontally extends from the outer side of the annular support body adjacent to the upper end of the annular support body, the inner ring is fixedly connected with the annular bearing plate, and triangular reinforcing ribs are respectively fixed between the annular bearing plate and the annular support body and between the annular bearing body and the furnace shell.

4. The uniform distribution device according to claim 1, further comprising a ring-shaped carrier body, wherein the ring-shaped carrier body comprises a ring-shaped horizontal body sleeved outside the furnace cover and horizontally stretched, and a ring-shaped upper and lower body fixedly connected with the ring-shaped horizontal body and stretched downwards along the upper and lower directions of the furnace shell, the outer ring is fixed on the ring-shaped upper and lower body, the ring-shaped horizontal body is fixedly connected with the furnace cover, and triangular reinforcing ribs are respectively fixed between the ring-shaped horizontal body and the furnace cover and between the ring-shaped horizontal body and the ring-shaped upper and lower bodies.

5. The uniform distribution device according to claim 1, further comprising a gas pipe penetrating the annular support body and used for feeding inert gas into the furnace shell, wherein a first end of the gas pipe extends upwards out of the liquid contained in the containing cavity and is placed in the annular barrier body, and a second end of the gas pipe is located outside the annular support body.

6. The uniform distribution device according to claim 5, wherein said air tubes are arranged in a plurality and spaced apart relation along the circumference of said annular support body, said first ends of said air tubes being further disposed adjacent said slits.

7. The uniform distribution device according to claim 1, wherein the annular support body is provided with a water inlet and a water outlet above the water inlet, the water inlet and the water outlet are one or more, the plurality of water inlets are arranged at intervals along the circumferential direction of the annular support body, and the plurality of water outlets are arranged at intervals along the circumferential direction of the annular support body.

8. The uniform distribution device according to claim 1, further comprising an annular trolley line for powering the feeding device, the feeding device being located within the trolley line.

9. The uniform distribution device according to claim 1, wherein the driving means comprises a gear engaged with the external teeth and a motor for driving the gear to rotate.

10. The uniform distribution device according to claim 9, wherein the driving device further comprises a speed reducer, an input end of the speed reducer is assembled and connected with the motor, the gear is fixedly sleeved at an output end of the speed reducer, and the output end of the speed reducer is aligned with or staggered with the input end of the speed reducer along the up-down direction of the furnace shell.

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