CN216205261U

CN216205261U - Controllable ventilating crucible for firing porous ceramic

Info

Publication number: CN216205261U
Application number: CN202122711707.1U
Authority: CN
Inventors: 张军
Original assignee: Shandong Hanshi Environmental Protection Equipment Co ltd
Current assignee: Shandong Hanshi Environmental Protection Equipment Co ltd
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-04-05
Anticipated expiration: 2031-11-08

Abstract

The utility model provides a controllable air-permeable crucible for firing porous ceramics, which comprises a crucible body, wherein the crucible body comprises a cavity and a hole plug, the cavity is enclosed by a bottom plate and a side plate, the bottom plate and the side plate comprise circular truncated cone-shaped through holes with large inner walls and small outer walls, and refractory paper is attached to the inner wall of the cavity; the hole plug is in a round table shape with a large inner wall and a small outer wall and corresponds to the through holes on the bottom plate and the side plates. The utility model has the beneficial effects that the controllable gas-permeable crucible for firing the porous ceramic is provided, the gas can be more fully contacted with the material by adopting the gas-permeable crucible, the production efficiency is improved, the inner parts of the prepared porous ceramic holes are more uniform, and the porous ceramic with the porous gradient structure can be directionally prepared by controlling the number and the positions of the hole plugs.

Description

Controllable ventilating crucible for firing porous ceramic

Technical Field

The utility model relates to the field of crucibles, in particular to a controllable gas-permeable crucible for firing porous ceramics.

Background

In the process flow of preparing the porous ceramic, raw materials and a foaming agent are crushed and then are fully and uniformly mixed to prepare a porous ceramic powder raw material, the porous ceramic powder raw material is put into a crucible made of refractory materials and then is fired at high temperature in a kiln car, and meanwhile, certain single or multiple specific mixed gases are required to be introduced into a kiln in the firing process and react with the porous ceramic powder raw material at high temperature. In order to enable gas and porous ceramic powder raw materials to react more uniformly, through holes are usually processed at the bottom and side plates of a crucible in the existing industrial production, but the filling of ceramic powder and ceramic particles is not facilitated, redundant filler can flow out of the through holes, the through holes are blocked, the contact between the gas and the porous ceramic raw materials is reduced, the production efficiency is reduced, and the holes of the produced porous ceramic are not uniform.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a controllable air-permeable crucible for firing porous ceramics, which effectively prevents the leakage problem of raw materials of porous ceramic powder and porous ceramic particles during filling by attaching refractory paper on the inner wall of a chamber. Meanwhile, due to the controllability of the through holes of the crucible, the porous ceramic with the oriented hole gradient can be produced by changing the number and the positions of the hole plugs of the gas-permeable crucible.

The controllable gas-permeable crucible for firing the porous ceramic comprises a crucible body, wherein the crucible body comprises a cavity provided with a through hole and a hole plug adaptive to the through hole.

Preferably, the chamber is bounded by a bottom panel and side panels.

Preferably, the bottom plate and the side plate of the chamber are made of refractory materials.

Preferably, the through hole is a circular truncated cone-shaped through hole with a large inner wall and a small outer wall, so that the chamber is communicated with the outside.

Preferably, the diameter of the circular truncated cone-shaped through hole on the inner wall is 14 mm to 16 mm, and the diameter of the circular truncated cone-shaped through hole on the outer wall is 12 mm to 14 mm.

Preferably, refractory paper is attached to the inner wall of the chamber.

Preferably, the refractory paper material of the chamber is aluminum silicate.

The controllable air-permeable crucible for firing the porous ceramics is used for charging the porous ceramics during high-temperature firing, so that gas introduced into the kiln reacts with the porous ceramic raw materials in the crucible. The controllable gas-permeable crucible comprises a crucible body, and comprises a cavity and a hole plug, wherein gas can enter the gas-permeable crucible through the circular truncated cone-shaped through holes in the bottom plate and the side plates, and fully contacts and reacts with the porous ceramic raw material.

By controlling the number and the positions of the hole plugs, the gas flow path in the gas-permeable crucible can be conveniently and effectively changed, and the porous ceramic with the directional hole gradient can be produced. The refractory paper attached to the inner wall of the chamber can effectively prevent the leakage problem of the porous ceramic powder and the porous ceramic particle raw materials during filling, and improve the reaction and production efficiency.

Drawings

FIG. 1 shows a perspective view of a controllable gas permeable crucible according to an embodiment of the utility model;

FIG. 2 shows a perspective view of a plug of a controlled gas permeable crucible according to an embodiment of the present invention.

Detailed Description

The utility model is described in more detail below with reference to the description of the figures. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit the utility model to practice with such embodiments.

It will be understood that when a layer, region or layer is referred to as being "on" or "over" another layer, region or layer in describing the structure of the component, it can be directly on the other layer, region or layer or intervening layers or regions may also be present. And, if the component is turned over, one layer, region or layers may be "under" or "beneath" another layer, region or layers.

FIG. 1 shows a perspective view of a controllable gas permeable crucible according to an embodiment of the present invention. The controllable gas-permeable crucible comprises a chamber and a hole plug 4, wherein the chamber is enclosed by a bottom plate 1 and a side plate 2, the bottom plate 1 and the side plate 2 comprise circular truncated cone-shaped through holes 3 with large inner walls and small outer walls, the through holes 3 are uniformly arranged on the bottom plate 1 and the side plate 2, and refractory paper is attached to the inner wall of the chamber; fig. 2 shows a perspective view of a plug 4 of a controlled gas-permeable crucible according to an embodiment of the utility model. The hole plug is in a round table shape with a large inner wall and a small outer wall and corresponds to the through holes on the bottom plate 1 and the side plates 2.

It will be understood that numerous modifications and variations will readily occur to those skilled in the art in light of the above description, and it is intended to cover all such modifications and variations as fall within the scope of the appended claims.

Claims

1. A controllable gas-permeable crucible for firing porous ceramics comprises a crucible body and is characterized in that the crucible body comprises a cavity provided with through holes and a hole plug matched with the through holes.

2. A controlled gas permeable crucible according to claim 1, wherein the chamber is enclosed by a bottom plate and side plates.

3. A controlled permeable crucible according to claim 2, wherein the bottom and side plates of the chamber are made of refractory material.

4. A controlled permeable crucible according to claim 1, wherein said through hole is a circular truncated cone shaped through hole with a large inner wall and a small outer wall, so that said chamber is in communication with the outside.

5. A controlled permeable crucible according to claim 4, wherein the frustoconical through hole has a diameter of 14 mm to 16 mm on the inner wall and a diameter of 12 mm to 14 mm on the outer wall.

6. A controlled gas permeable crucible according to claim 1, wherein refractory paper is attached to the inner wall of the chamber.

7. A controlled gas-permeable crucible according to claim 6, wherein the refractory paper material of the chamber is aluminium silicate.