CN212645347U

CN212645347U - High-purity alumina roasting crucible

Info

Publication number: CN212645347U
Application number: CN202020810280.3U
Authority: CN
Inventors: 姜起腾; 姜起盛; 姜鹏俊
Original assignee: Jiangxi Pengteng Industry Co ltd
Current assignee: Jiangxi Pengteng Industry Co ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-03-02
Anticipated expiration: 2030-05-15

Abstract

The utility model discloses a high-purity alumina roasting crucible, which is internally provided with a layer of crystal fiber board. During calcination, the crystal fiber board is fully soaked, then the crystal fiber board is placed in the crucible body, and aluminum chloride is placed on the crystal fiber board for calcination, so that water vapor on the crystal fiber board is evaporated, and the aluminum oxide with higher purity is obtained by utilizing the reaction of the water vapor and chloride ions.

Description

High-purity alumina roasting crucible

Technical Field

The utility model relates to a crucible, in particular to a high-purity alumina roasting crucible.

Background

At present, most of enterprises for producing aluminum oxide by crystallizing aluminum chloride in domestic markets adopt a high-temperature calcination method. However, the alumina calcined at high temperature usually has residual chloride ions, and this problem must be solved in order to obtain high purity alumina. It was found that water vapour contributes to the decomposition of crystalline aluminium chloride. The residual chlorine of the alumina in the atmosphere containing the moisture gas purging is also obviously reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-purity aluminium oxide calcination crucible, this device mainly set up the crystal fiber board in the crucible to make the calcination of crystallization aluminium chloride production high-purity aluminium oxide reach better effect, improve product quality. And the structure is simple and the cost is low.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a high-purity aluminium oxide calcination crucible, includes the crucible body, this internal one deck crystal fiber board that is equipped with of crucible, still be equipped with a section cavity below the crystal fiber board.

Further preferably, the crystal fiber board is an alumina perforated fiber board.

Preferably, four supporting legs are uniformly distributed on the edge of the bottom of the crystal fiber plate.

Preferably, the top ends of the two sides of the crystal fiber plate are also provided with locking hooks.

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

one is as follows: in the high-temperature calcination, the chlorine residue on the alumina can be preferably removed by steam.

The second step is as follows: can prevent the problem that the water vapor is too fast to cause insufficient decomposition of chloride ions, thereby achieving the purpose of producing alumina with higher purity.

And thirdly: the device has simple structure and low cost, and is easy to disassemble and clean.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. crucible body, 2 crystal fiber board, 3 supporting legs, 4 locking hook buckles and 5 cavities.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Referring to fig. 1:

the utility model provides a high-purity aluminium oxide calcination crucible, includes crucible body 1, be equipped with one deck crystal fiberboard 2 in crucible body 1, still be equipped with one section cavity 5 below crystal fiberboard 2. During the use, fully soak crystal fiber board 2, place crystal fiber board 2 in crucible body 1 when calcining, aluminium chloride then places and calcines on crystal fiber board 2 to make the vapor evaporation on the crystal fiber board 2, utilize vapor and chloride ion reaction, the higher purity alumina that obtains. Set up one section cavity 5 at crystal fiber board lower extreme, be in order to let the vapor that evaporates out can be better filling in crucible body 1, improve the contact velocity of vapor and aluminium chloride, can also prevent crystal fiber board 5 and crucible body 1 bottom contact, produce easily when calcining and break.

The crystal fiber plate 5 is changed into an alumina perforated fiber plate, so that the crystal fiber plate can be more fully contacted with aluminum chloride when water vapor is evaporated through the through holes.

Four supporting legs 3 are arranged at the bottom of the crystal fiber plate 2, so that the crystal fiber plate 2 is not required to be fixed on the inner wall of the crucible body 1, and enough cavities 5 are reserved among the supporting legs 3.

The top ends of the two sides of the crystal fiber board 2 are also provided with a lock hook buckle 4. Since the crucible firing is performed at a high temperature, burning may be caused during the operation, and the locking hook 4 may be held by a tool such as a tongs.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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.

Claims

1. The utility model provides a high-purity alumina calcination crucible, includes the crucible body, characterized by: the crucible is characterized in that a layer of crystal fiber plate is arranged in the crucible body, four supporting legs are uniformly distributed on the edge of the bottom of the crystal fiber plate, a section of cavity is further arranged below the crystal fiber plate, and the crystal fiber plate is an alumina perforated fiber plate.

2. A high purity alumina calcination crucible as claimed in claim 1, wherein: and lock hooks are arranged at the top ends of the two sides of the crystal fiber board.