CN217877037U

CN217877037U - Roller kiln

Info

Publication number: CN217877037U
Application number: CN202221831171.5U
Authority: CN
Inventors: 文小洪
Original assignee: Changsha Zhongyi Construction Machinery Manufacturing Co ltd
Current assignee: Changsha Zhongyi Construction Machinery Manufacturing Co ltd
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2022-11-22
Anticipated expiration: 2032-07-15

Abstract

The utility model provides a roller kiln, including base, top cap, flame board, transfer roller and air supply system, the base with the top cap set up in the upper and lower both sides of flame board, the flame board with the base cooperation encloses into the burning storehouse, the flame board with the top cap cooperation encloses into the sintering storehouse, the flame board includes roof, bottom plate and curb plate, the roof with the bottom plate interval sets up, the curb plate is connected the roof with the bottom plate, roof, bottom plate and curb plate cooperation enclose into first wind channel, it is provided with the intercommunication to run through on the roof the sintering storehouse with the first wind hole in first wind channel, the relative both sides of curb plate are provided with the intercommunication respectively first wind channel and external air intake and air outlet, air supply system includes air-blower and blast pipe, the blast pipe intercommunication the air-blower reaches the air intake. The utility model discloses can shorten preheating time.

Description

Roller kiln

[ technical field ] A method for producing a semiconductor device

The utility model relates to a lithium cell technical field, concretely relates to roller way kiln.

[ background of the invention ]

The lithium battery is the rechargeable battery with the most advantageous performance at present, and along with the continuous popularization of the application, the demand of the lithium battery is also continuously increased. The anode material adopted by the current lithium battery is mainly LiCoO ₂ 、LiNiO ₂ 、LiMn ₂ O ₄ And the like as well as doping or modifications. And placing the lithium battery powder in a sagger, and then conveying the sagger into a roller kiln for sintering until the lithium battery powder meets the processing requirement.

In the related technology, the roller kiln comprises a combustion chamber and a sintering chamber, the combustion chamber and the sintering chamber are separated through a flame isolation plate, fuel is combusted in the combustion chamber to release heat, the heat is conducted into the sintering chamber through the flame isolation plate, the roller is located in the sintering chamber, and a sagger is placed on the roller and is conveyed by the roller. The heat of the combustion chamber is spontaneously transferred into the sintering chamber through the flame isolating plate, and the transfer speed is low, so that a kiln just starts and needs long preheating time. It is therefore desirable to provide a roller kiln which solves the above problems.

[ Utility model ] content

The utility model discloses a roller kiln can shorten the preheating time when the kiln starts to can accelerate the air cycle in the sintering storehouse, make the temperature distribution in the sintering storehouse balanced.

In order to achieve the above purpose, the technical scheme of the utility model is that:

a roller kiln comprises a base, a top cover, a flame isolation plate, a conveying roller and an air supply system, wherein the base and the top cover are arranged on the upper side and the lower side of the flame isolation plate, the flame isolation plate comprises a top plate, a bottom plate and side plates, the top plate and the bottom plate are arranged at intervals, the side plates are connected with the top plate and the bottom plate, the top plate and the top cover are matched to enclose a sintering chamber, the bottom plate and the base are matched to enclose a combustion chamber, the top plate, the bottom plate and the side plates are matched to enclose a first air channel, first air holes communicated with the sintering chamber and the first air channel are arranged in the top plate in a penetrating mode, air inlets and air outlets communicated with the first air channel and the outside are arranged on the two opposite sides of the side plates respectively, the air supply system comprises an air blower and an air supply pipe, and the air supply pipe is communicated with the blower and the air inlets and used for supplying air into the first air channel.

Preferably, a gap is formed between two adjacent conveying rollers at intervals, and the first air hole is positioned right below the gap.

Preferably, the multiple rows of the first air holes are arranged at equal intervals along the conveying direction of the sagger, and the interval distance is equal to the interval distance between two adjacent conveying rollers; every row first wind hole is followed the axis direction equidistance interval of transfer roller is arranged.

Preferably, the transfer roller is a hollow roller body, a second air channel is formed in a hollow area of the transfer roller, a second air hole communicated with the second air channel and the sintering bin penetrates through the circumferential surface of the transfer roller, the air supply system further comprises an air supply branch pipe, the air supply branch pipe is communicated with the second air channel and the air supply pipe, and a valve is arranged on the air supply branch pipe.

Preferably, a plurality of the second air holes are distributed in an annular array along the central axis of the conveying roller.

Preferably, the base and the top cover both adopt a three-layer structure, and the three-layer structure comprises a high-alumina brick layer, a ceramic fiber layer and a steel plate layer which are sequentially arranged from outside to inside.

Compared with the prior art, the utility model provides a pair of roller kiln sets up the flame board into bilayer structure, and the interval forms first wind channel between roof and the bottom plate, is provided with first wind hole on the roof, the air inlet in the first wind channel, and first wind hole air-out can accelerate the heat transfer in the sintering storehouse, shortens preheating time, can also make temperature in the sintering storehouse is even.

[ description of the drawings ]

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic structural diagram of a roller kiln provided by an embodiment;

FIG. 2 is a schematic structural view of a flame barrier;

fig. 3 is a schematic view of the flame barrier shown in fig. 2 at another angle.

[ detailed description ] embodiments

In order to make the technical solutions in the embodiments of the present invention better understood and make the above objects, features and advantages of the present invention more obvious and understandable, the following description of the embodiments of the present invention is provided.

Referring to fig. 1-3, the present invention provides a roller kiln 100, which includes a base 10, a top cover 20, a flame shield 30, an air supply system 40 and a conveying roller 50.

The base 10 and the top cover 20 are of a three-layer structure and comprise a high-alumina brick layer, a ceramic fiber layer and a steel plate layer which are sequentially arranged from outside to inside, so that the heat insulation effect is good, and the dissipation of heat is avoided; the outer layer is made of steel plates, has strong plasticity and can be made into any shape.

The base 10 and the top cover 20 are arranged on the upper side and the lower side of the flame-isolating plate 30, the flame-isolating plate 30 comprises a top plate 31, a bottom plate 32 and side plates 33, the top plate 31 and the bottom plate 32 are arranged at intervals, the side plates 33 are connected with the top plate 31 and the bottom plate 32, the top plate 31, the bottom plate 32 and the side plates 33 are matched to enclose a first air duct 34, the top plate 31 and the top cover 20 are matched to enclose a sintering bin, and the bottom plate and the base 10 are matched to enclose a combustion bin. The fuel is combusted in the combustion chamber to generate heat, and the generated heat is upwards transferred into the sintering chamber through the flame isolation plate 30 to provide heat for sintering the lithium battery material. A first air hole 310 communicating the sintering bin with the first air duct 34 is formed in the top plate 31 in a penetrating manner, an air inlet 35 and an air outlet 36 communicating the first air duct 34 with the outside are respectively formed in two opposite sides of the side plate 33, and valves are arranged on the air inlet 35 and the air outlet 36.

When the track kiln starts, close valve on the air outlet 36, ignite the fuel in the bunker, make its burning exothermic, then to inject cold wind in the air intake 35, cold wind through 34 back in the first wind channel, by bottom plate 32 heating becomes hot-blastly, then passes through first wind hole 310 gets into in the sintering bin, with the cold air heat transfer in the sintering bin makes the temperature in the sintering bin promote fast, and track kiln during operation lasts the air inlet in the air intake 35, can also promote the gaseous flow in the sintering bin for the heat transfer effect makes all temperature keep the equilibrium in the sintering bin.

When the kiln is closed, the valve on the air outlet 36 is opened, the air outlet 36 is communicated with a subsequent heat exchange device, air is continuously fed into the first air duct 34, residual heat in the sintering bin and the combustion bin can be transferred out, heat exchange is carried out through the heat exchange device, and reasonable utilization of waste heat can be achieved.

The air intake system 40 includes a blower 41 and a blast pipe 42, and the blast pipe 42 is communicated with the blower 41 and the air inlet 35 and is used for supplying air into the first air duct 34.

Conveying roller 50 is used for conveying the casket-like bowl, conveying roller 50's quantity is a plurality of, and is a plurality of conveying roller 50 follows the direction of transfer equidistance interval of casket-like bowl is arranged. Adjacent two 50 clearances of transfer roller form the clearance, first wind hole 310 is located under the clearance, avoids the air-out direct impact of first wind hole 310 to be in cause on the transfer roller 50 the overheated of transfer roller 50.

Preferably, the multiple rows of the first air holes 310 are arranged at equal intervals along the conveying direction of the sagger, and the interval distance is equal to the interval distance between two adjacent conveying rollers 50; each row of the first air holes 310 is arranged at equal intervals along the axial direction of the transfer roller 50.

Further, the conveying roller 50 is a hollow roller body, a second air duct 51 is formed in a hollow area of the conveying roller 50, a second air hole 52 which is communicated with the second air duct 51 and the sintering bin penetrates through the circumferential surface of the conveying roller 50, the air supply system 40 further comprises an air supply branch pipe 43, the air supply branch pipe 43 is communicated with the second air duct 51 and the air supply pipe 42, and a valve is arranged on the air supply branch pipe 43. The air supply branch pipe 43 is used for supplying air into the second air duct 51, and can carry away heat on the conveying roller 50, reduce the temperature of the conveying roller 50, avoid overheating and deformation of the conveying roller 50, and prolong the service life of the conveying roller 50; meanwhile, when air is discharged from the conveying roller 50, the air flow of the sintering bin can be further promoted, so that the temperature of each part in the sintering bin is balanced; when the waste heat utilization is needed, the air in the second air hole 52 is exhausted, so that the air flow in the sintering bin can be promoted, and the hot air can be better discharged.

Preferably, the number of the second air holes 52 is multiple, and the multiple second air holes 52 are distributed in an annular array along the central axis of the conveying roller 50.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The roller kiln is characterized by comprising a base, a top cover, a flame isolation plate, a conveying roller and an air supply system, wherein the base and the top cover are arranged on the upper side and the lower side of the flame isolation plate, the flame isolation plate comprises a top plate, a bottom plate and side plates, the top plate and the bottom plate are arranged at intervals, the side plates are connected with the top plate and the bottom plate, the top plate and the top cover are matched to enclose a sintering chamber, the bottom plate and the base are matched to enclose a combustion chamber, the top plate, the bottom plate and the side plates are matched to enclose a first air channel, first air holes communicated with the sintering chamber and the first air channel are arranged in the top plate in a penetrating mode, air inlets and air outlets communicated with the first air channel and the outside are formed in the two opposite sides of the side plates respectively, the air supply system comprises an air blower and an air supply pipe, and the air supply pipe is communicated with the air inlets and used for supplying air into the first air channels.

2. The roller kiln furnace as claimed in claim 1, wherein a gap is formed between two adjacent conveying rollers, and the first air hole is located right below the gap.

3. The roller kiln furnace of claim 1, wherein the first air holes are arranged in a plurality of rows at equal intervals along the conveying direction of the sagger, and the interval distance is equal to the interval distance between two adjacent conveying rollers; every row first wind hole is followed the axis direction equidistance interval of transfer roller is arranged.

4. The roller kiln furnace as claimed in claim 3, wherein the conveying roller is a hollow roller body, a second air duct is formed in a hollow area of the conveying roller, a second air hole which is communicated with the second air duct and the sintering bin is arranged on the circumferential surface of the conveying roller in a penetrating manner, the air supply system further comprises an air supply branch pipe, the air supply branch pipe is communicated with the second air duct and the air supply pipe, and a valve is arranged on the air supply branch pipe.

5. The roller kiln of claim 4, wherein the plurality of second air holes are distributed in an annular array along a central axis of the conveying roller.

6. The roller way kiln furnace as claimed in claim 1, wherein the base and the top cover are of a three-layer structure comprising a high-alumina brick layer, a ceramic fiber layer and a steel plate layer which are arranged in sequence from outside to inside.