CN210833013U

CN210833013U - Roller kiln for high-temperature sintering of materials

Info

Publication number: CN210833013U
Application number: CN201921783994.3U
Authority: CN
Inventors: 周利虎; 刘宇杰; 付莹
Original assignee: Demeter Suzhou Electronics Environmental Materials Co ltd
Current assignee: Demeter Suzhou Electronics Environmental Materials Co ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-06-23
Anticipated expiration: 2029-10-22

Abstract

The utility model relates to a roller kilns that material high temperature sintering was used, it includes the kiln body, roller bed component, heating element, from kiln body top downwardly extending and with the kiln body from advancing kiln mouthful to going out the kiln mouthful to divide into the high temperature resistant baffle in a plurality of sintering districts in proper order and the exhaust pipe who is linked together with a plurality of sintering districts, wherein the lower tip of every high temperature resistant baffle is located roller bed component's top, the produced gas of sintering is from the exhaust pipe discharge kiln body. On one hand, the utility model divides the sintering area formed in the kiln body into a plurality of sintering areas, so that the temperature of the adjacent calcining areas can not generate the temperature channeling phenomenon; on the other hand, gas generated in the calcination process is discharged out of the kiln body through the exhaust pipeline, so that the calcination quality of the product is ensured, and the service life of the kiln body is prolonged.

Description

Roller kiln for high-temperature sintering of materials

Technical Field

The utility model belongs to powder sintering equipment field, concretely relates to roller kilns that material high temperature sintering was used.

Background

At present, in domestic small and medium-sized powder non-automatic production enterprises, because sintering materials are heated unevenly in a roller kiln, the difference of the specific surface of the sintered materials is large, the difference of hardness is large, the difference of the conversion rate of the sintered materials is large, great influence is brought to the production of the enterprises, risks are brought to the quality of the products and the stability of the products, and great influence is brought to the management and control of the sintering process of the enterprises.

Meanwhile, the temperature difference in the calcining process of the roller kiln in China is only the height of the kiln body is modified, but the phenomenon that the temperature between adjacent calcining sections changes is still existed. In addition, the generated gases such as water vapor, carbon dioxide or ammonia gas and the like generated in the material decomposition stage can not be discharged out of the furnace body in time well by the domestic roller kiln, so that the gases remained in the furnace body influence the calcination stability and the stability of the used heating material.

That is, it has the following technical drawbacks:

1) and the adjacent calcining temperature zones have temperature channeling phenomenon, so that the quality of the calcined product is influenced, the production efficiency of enterprises is reduced, and the cost is increased.

2) And the untimely emission of the calcining gas influences the quality of the product and the service life of the kiln body.

Disclosure of Invention

The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing a roller kiln for high-temperature sintering of improved materials.

In order to solve the technical problem, the utility model discloses take following technical scheme:

a roller kiln for high-temperature sintering of materials comprises:

a kiln body;

a roller way assembly;

the heating component is used for heating the air conditioner,

particularly, the roller kiln also comprises high-temperature-resistant partition plates which extend downwards from the top of the kiln body and divide the kiln body into a plurality of sintering areas from a kiln inlet to a kiln outlet in sequence, and an exhaust pipeline communicated with the sintering areas, wherein the lower end part of each high-temperature-resistant partition plate is positioned above the roller assembly, and gas generated by sintering is exhausted out of the kiln body from the exhaust pipeline.

Preferably, there are two sets of exhaust pipelines, and the exhaust pipelines are respectively and correspondingly arranged at the kiln inlet section and the kiln outlet section of the kiln body. Ensuring that gas generated by the calcination decomposition of the materials at the beginning is completely removed, and therefore, one group of the gas is arranged at the kiln entering section; after the material is calcined and sintered, because of contacting with the air, a lot of water vapor can be generated, therefore, the other group is arranged at the kiln discharging section, so that the water vapor can be removed as much as possible, the utilization rate of the roller kiln is improved, meanwhile, the unevenness generated by material calcination is reduced, and the quality of material calcination is improved.

According to the utility model discloses a concrete implementation and preferred aspect, exhaust pipe includes with advance the kiln section or go out the branch pipe of every sintering zone intercommunication that the kiln section corresponds, be used for will advance the kiln section or go out the branch pipe that the kiln section corresponds and concatenate mutually and concentrate exhaust T type pipe, wherein T type pipe is from horizontal part and a plurality of branch pipe intercommunication, upwards extends from vertical portion and concentrates gas and discharge outside the kiln body.

Preferably, the branch pipes are correspondingly arranged at the top of the kiln body. The gas generated during calcination is convenient to be discharged out of the kiln body.

Preferably, the heating assembly comprises a heating element arranged at the bottom of the kiln body and positioned below the roller way assembly.

Specifically, the heating element is an electric heating wire.

According to the utility model discloses a still another concrete implementation and preferred aspect, heating element is still including being located roller way assembly top and many carbon-points that set up side by side, wherein carbon-point and roller way assembly's transmission roller parallel arrangement, and form material passageway between carbon-point and the transmission roller.

Preferably, a plurality of the carbon rods are uniformly distributed at intervals along the length direction of the kiln body, the high-temperature-resistant partition plate is positioned above the carbon rods, and the number of the carbon rods in each sintering area is equal.

Furthermore, the lower end part of each high-temperature-resistant partition plate is positioned between two carbon rods which are separated from each other and is positioned above the material channel.

In addition, the roller way assembly comprises a plurality of transmission rollers which are distributed side by side along the length direction of the kiln body, and a driving piece and a transmission piece which drive the transmission rollers to rotate, wherein under the rotation of the transmission rollers, the materials move from the kiln inlet to the kiln outlet.

Due to the implementation of the above technical scheme, compared with the prior art, the utility model have the following advantage:

on one hand, the utility model divides the sintering area formed in the kiln body into a plurality of sintering areas, so that the temperature of the adjacent calcining areas can not generate the temperature channeling phenomenon; on the other hand, gas generated in the calcination process is discharged out of the kiln body through the exhaust pipeline, so that the calcination quality of the product is ensured, and the service life of the kiln body is prolonged.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic front view of the roller kiln of the present invention;

FIG. 2 is an enlarged sectional view taken along line A-A in FIG. 1;

wherein: 1. a kiln body; 1a, entering a kiln section; 1b, drawing the kiln;

2. a roller way assembly; 20. a transfer roller;

3. a heating assembly; 30. a heating element; 31. a carbon rod;

4. a high temperature resistant separator;

5. an exhaust line; 50. a branch pipe; 51. a T-shaped pipe;

and s, a sintering area.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, 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," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

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, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1 and fig. 2, the present embodiment provides a roller kiln for high-temperature sintering of materials, which includes a kiln body 1, a roller assembly 2, a heating assembly 3, a high-temperature resistant partition plate 4 extending downward from the top of the kiln body 1 and dividing the kiln body 1 into a plurality of sintering zones s in sequence from a kiln inlet to a kiln outlet, and an exhaust pipeline 5 communicated with the plurality of sintering zones s, wherein the lower end of each high-temperature resistant partition plate 4 is located above the roller assembly 2, and gas generated by sintering is exhausted from the kiln body 1 through the exhaust pipeline 5.

In this example, the kiln inlet and the kiln outlet of the kiln body 1 are correspondingly arranged on the left side and the right side.

The roller way assembly 2 comprises a plurality of conveying rollers 20 which are distributed side by side along the length direction of the kiln body 1, and a driving piece (not shown in the figure, but not difficult to think) and a transmission piece (not shown in the figure, but not difficult to think) which drive the conveying rollers 20 to rotate, wherein under the rotation of the conveying rollers, materials move from the kiln inlet to the kiln outlet.

In the field, the driving mode of the plurality of conveying rollers 20 is common knowledge in the art, and a conventional chain wheel type transmission, or a direct gear transmission, etc. can be adopted, which is not described in detail herein, and is clear and practical.

The heating assembly 3 comprises a heating element 30 arranged at the bottom of the kiln body 1 and positioned below the roller way assembly 2 and a plurality of carbon rods 31 arranged above the roller way assembly 2 side by side, wherein the heating element 30 is an electric heating wire, the carbon rods 31 are arranged in parallel with the transmission rollers 20 of the roller way assembly 2, and a material channel is formed between the carbon rods 31 and the transmission rollers 20.

A plurality of carbon rods 31 are uniformly distributed along the length direction of the kiln body 1 at intervals, the high-temperature-resistant partition plates 4 are positioned above the carbon rods 31, and the number of the carbon rods positioned in each sintering area s is equal.

In this example, the lower end of each refractory barrier 4 is located between two spaced apart carbon rods 31 and above the feed passage. This keeps the temperature between adjacent calcining zones constant.

In this embodiment, there are two sets of exhaust pipes 5, which are respectively disposed at the kiln inlet section 1a and the kiln outlet section 1b of the kiln body 1. Ensuring that gas generated by the calcination decomposition of the materials at the beginning is completely removed, and therefore, one group of the gas is arranged at the kiln entering section; after the material is calcined and sintered, because of contacting with the air, a lot of water vapor can be generated, therefore, the other group is arranged at the kiln discharging section, so that the water vapor can be removed as much as possible, the utilization rate of the roller kiln is improved, meanwhile, the unevenness generated by material calcination is reduced, and the quality of material calcination is improved.

Specifically, the exhaust duct 5 includes a branch pipe 50 communicated with each sintering zone s corresponding to the kiln inlet section 1a or the kiln outlet section 1b, and a T-shaped pipe 51 for connecting the branch pipes 50 corresponding to the kiln inlet section 1a or the kiln outlet section 1b in series and discharging the gas collectively, wherein the T-shaped pipe 51 is communicated with the plurality of branch pipes 50 from the horizontal portion, and extends upward from the vertical portion to discharge the gas collectively outside the kiln body.

The branch pipes 50 are correspondingly arranged at the top of the kiln body 1. The generated gas is lifted, so that the gas generated during the calcination is convenient to discharge out of the kiln body 1.

In summary, the present embodiment has the following technical advantages:

(1) through increasing effectual high temperature resistant baffle for the material does not take place the difference at the temperature that every warm zone received and actual temperature, reduces adjacent calcination interval temperature and can not appear scurrying the phenomenon of warm and take place, and then reduced the material because calcine the unreasonable waste that causes, also improved the yield and the stability of product simultaneously, thereby improved sintering efficiency.

(2) The gas generated by the calcination decomposition of the materials at the beginning is completely removed by adding an exhaust pipeline, so that one group of the exhaust pipelines is arranged at the kiln inlet section; after the material is calcined and sintered, because of contacting with the air, a lot of water vapor can be generated, therefore, the other group is arranged at the kiln discharging section, so that the water vapor can be removed as much as possible, the utilization rate of the roller kiln is improved, meanwhile, the unevenness generated by material calcination is reduced, and the quality of material calcination is improved.

The present invention has been described in detail, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the same, and the protection scope of the present invention should not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A roller kiln for high-temperature sintering of materials comprises:

a kiln body;

a roller way assembly;

the heating component is used for heating the air conditioner,

the method is characterized in that:

the roller kiln also comprises a high-temperature-resistant partition plate and an exhaust pipeline, wherein the high-temperature-resistant partition plate extends downwards from the top of the kiln body and divides the kiln body into a plurality of sintering areas from a kiln inlet to a kiln outlet in sequence, the exhaust pipeline is communicated with the sintering areas, the lower end part of each high-temperature-resistant partition plate is positioned above the roller assembly, and gas generated by sintering is exhausted from the exhaust pipeline to the kiln body.

2. The roller kiln for high-temperature sintering of materials according to claim 1, characterized in that: the exhaust pipelines are divided into two groups and are respectively and correspondingly arranged at the kiln inlet section and the kiln outlet section of the kiln body.

3. The roller kiln for high-temperature sintering of materials according to claim 2, characterized in that: the exhaust pipeline comprises branch pipes communicated with each sintering area corresponding to the kiln inlet section or the kiln outlet section and T-shaped pipes used for serially connecting the branch pipes corresponding to the kiln inlet section or the kiln outlet section and intensively discharging the branch pipes, wherein the T-shaped pipes are communicated with the branch pipes from the horizontal part and extend upwards from the vertical part to intensively discharge gas outside the kiln body.

4. The roller kiln for high-temperature sintering of materials according to claim 3, characterized in that: the branch pipes are correspondingly arranged at the top of the kiln body.

5. The roller kiln for high-temperature sintering of materials according to claim 1, characterized in that: the heating assembly comprises a heating element which is arranged at the bottom of the kiln body and is positioned below the roller way assembly.

6. The roller kiln for high-temperature sintering of materials according to claim 5, characterized in that: the heating element is an electric heating wire.

7. The roller kiln for high-temperature sintering of materials according to claim 5 or 6, characterized in that: the heating assembly further comprises a plurality of carbon rods which are positioned above the roller way assembly and are arranged side by side, wherein the carbon rods are arranged in parallel with the transmission rollers of the roller way assembly, and a material channel is formed between the carbon rods and the transmission rollers.

8. The roller kiln for high-temperature sintering of materials according to claim 7, characterized in that: the carbon rods are uniformly distributed along the length direction of the kiln body at intervals, the high-temperature-resistant partition plates are positioned above the carbon rods, and the number of the carbon rods in each sintering area is equal.

9. The roller kiln for high-temperature sintering of materials according to claim 8, characterized in that: the lower end part of each high-temperature resistant clapboard is positioned between two carbon rods which are separated from each other and is positioned above the material channel.

10. The roller kiln for high-temperature sintering of materials according to claim 1, characterized in that: the roller way assembly comprises a plurality of transmission rollers which are distributed side by side along the length direction of the kiln body, and a driving piece and a transmission piece which drive the transmission rollers to rotate, wherein under the rotation of the transmission rollers, the materials move from the kiln inlet to the kiln outlet.