CN215216267U

CN215216267U - Acid-alkali-resistant and corrosion-resistant refractory brick for waste liquid incinerator

Info

Publication number: CN215216267U
Application number: CN202120969151.3U
Authority: CN
Inventors: 吴雯扬; 潘越; 曹彪; 徐渊; 任兴举; 孙雷; 徐达; 钱强
Original assignee: Wuxi Yizhou Fireproof Material Co ltd
Current assignee: Wuxi Yizhou Fireproof Material Co ltd
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-12-17
Anticipated expiration: 2031-05-08

Abstract

The utility model discloses an acid and alkali resistant and erosion resistant refractory brick for a waste liquid incinerator, which comprises a brick body, wherein a hollow cavity is arranged in the center of the brick body, an acid resistant refractory layer and a ceramic layer are sequentially arranged on the bottom surface of the brick body, and a plurality of concave holes are formed in the top surface of the brick body; the left side surface of the brick body is provided with a T-shaped lug, and the right side surface of the brick body is provided with a groove matched with the lug in shape; the hollow cavity is filled with a heat insulation layer; the anchoring piece is arranged between the convex block and the heat-insulating layer, and the refractory brick has the advantages of reasonable structure, high strength, good heat insulation performance, acid and alkali resistance and erosion resistance.

Description

Acid-alkali-resistant and corrosion-resistant refractory brick for waste liquid incinerator

Technical Field

The utility model relates to a resistant firebrick technical field especially relates to an acid and alkali-resistant firebrick that corrodes for waste liquid incinerator.

Background

The firebricks are called firebricks for short. A shaped and sized refractory material. The refractory brick can be used as a building material of various industrial furnaces, a waste liquid incinerator needs to burn waste liquid, refractory bricks are required to have acid and alkali resistance and erosion resistance, and the traditional refractory bricks are made of fire-resistant clay by firing, are low in strength and are hardly suitable for high-strength and high-pollution environments in a grate type waste incinerator. Chinese patent CN203442871U discloses a leak-proof corrosion-resistant refractory brick, which greatly improves the physical properties of the brick through the improvement of the brick body, so that the brick can be well applied to a grate type garbage incinerator, the service life of the brick is prolonged, and the cost is saved. However, the refractory brick in the patent is only carried out on the brick body structure and does not meet the requirements of the prior waste liquid incinerator; chinese patent CN205066455U discloses a high stability is able to bear or endure firebrick, and this patent makes things convenient for firebrick's combination to use through the cooperation of arch and recess, and the contact surface of flame retardant coating and heat preservation all is the spherical design, provides the space for the thermal deformation of the brick body, and stability is higher during the use, has increased the life of heating furnace, reduces the maintenance cost, sets up bellied position and counterpoints easily when building by laying bricks or stones: however, the connection between the raised part and the refractory brick body is easy to be damaged, and the pure refractory layer has poor acid and alkali resistance and corrosion resistance.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects of the prior art and providing a refractory brick for a waste liquid incinerator, which has the advantages of reasonable structure, high strength, good heat insulation and heat preservation performance, acid and alkali resistance and erosion resistance.

In order to realize the purpose of the utility model, the technical proposal of the utility model is that:

an acid-alkali-resistant and erosion-resistant refractory brick for a waste liquid incinerator comprises a brick body, wherein a hollow cavity is formed in the center of the brick body, an acid-resistant refractory layer and a ceramic layer are sequentially arranged on the bottom surface of the brick body, and a plurality of concave holes are formed in the top surface of the brick body; the left side surface of the brick body is provided with a T-shaped lug, and the right side surface of the brick body is provided with a groove matched with the lug in shape; the hollow cavity is filled with a heat insulation layer; an anchoring part is also arranged between the convex block and the heat-insulating layer.

Preferably, a refractory fiber board is further arranged on one side, close to the acid-resistant refractory layer, in the brick body, the embedded refractory fiber board is fired, refractory fibers are pulverized, a vacuum cavity is formed, and the brick has high heat insulation performance.

Preferably, the heat-insulating layer is made of air-hardening light refractory castable.

Preferably, the anchoring member comprises a T-shaped stud, the vertical part of the stud is positioned in the convex block, and the horizontal part of the stud is positioned in the insulating layer.

Preferably, a plurality of T-shaped nail claws are vertically arranged on the horizontal part of the nail column, the nail claws are alternately connected to the horizontal part of the nail column at intervals up and down, and the nail claws extend into the brick body.

The utility model has the advantages that:

firstly, the method comprises the following steps: the acid-resistant refractory layer and the ceramic layer are arranged, so that the acid and alkali resistance and the erosion resistance of the brick body are improved;

secondly, the method comprises the following steps: the refractory fiber board and the heat-insulating layer are arranged to ensure the heat-insulating property of the brick body;

thirdly, the method comprises the following steps: set up anchor assembly, strengthened the firmness of lug with the brick body junction, utilize anchor assembly to strengthen the firmness between the heat preservation pouring material and the brick body simultaneously, the intensity of the whole brick body of further promotion:

fourthly: set up the shrinkage pool and make the brick body when building by laying bricks or stones, bigger with the area of contact who builds the material by laying bricks or stones, the more firm of bonding.

Drawings

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

In the figure: 10 is a brick body, 11 is a hollow cavity, 12 is a concave hole, 13 is a bump, 14 is a groove, 15 is a heat-insulating layer, 16 is a refractory fiberboard, 20 is an acid-resistant refractory layer, 30 is a ceramic layer, 40 is an anchor, 41 is a stud and 42 is a claw.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

An acid-alkali-resistant and corrosion-resistant refractory brick for a waste liquid incinerator comprises a brick body 10, wherein a hollow cavity 11 is formed in the center of the brick body 10, an acid-resistant refractory layer 20 and a ceramic layer 30 are sequentially arranged on the bottom surface of the brick body 10, and a plurality of concave holes 12 are formed in the top surface of the brick body; the left side surface of the brick body 10 is provided with a T-shaped convex block 13, and the right side surface is provided with a groove 14 matched with the convex block 13 in shape; the hollow cavity 11 is filled with a heat insulation layer 15; an anchoring member 40 is also arranged between the convex block 13 and the heat-insulating layer 15.

Preferably, a refractory fiber board 16 is further arranged on one side of the brick body 10 close to the acid-resistant refractory layer 20, the refractory fiber board 16 is pre-embedded, and the refractory fiber is pulverized through firing to form a vacuum cavity, so that the brick has high heat insulation performance.

The acid-resistant refractory layer 20 is prepared by firing zircon fine powder, pyrophyllite powder, vein quartz powder, refractory clay and the like.

The ceramic layer 30 is pressed on the bottom surface of the brick body, when the brick body is fired at high temperature, the ceramic layer 30 forms a ceramic surface after being heated, the ceramic surface has strong wear resistance, acid resistance and corrosion resistance, the service life of the brick body 10 is prolonged, and one side of the pressed ceramic layer 30 faces the furnace when the brick body is built.

Preferably, the insulating layer 15 is made of air-hardening lightweight refractory castable.

Preferably, the anchoring member 40 includes a T-shaped stud 41, a vertical portion of the stud 41 is located inside the bump 13, and a horizontal portion of the stud 41 is located on the insulating layer 15, so as to enhance the connection between the bump 13 and the brick body 10.

Preferably, a plurality of T-shaped nails 42 are vertically arranged on the horizontal part of the nail post 41, the nails 42 are alternately connected to the horizontal part of the nail post 41 up and down at intervals, the nails 42 extend into the brick body 10, the T-shaped nails 41 and the T-shaped nails 42 are used for fastening the insulating layer 15 and the brick body 10, and simultaneously, the strength of the whole refractory brick is improved.

The described embodiments are only some, but not all embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Claims

1. The utility model provides an acid and alkali-resistant firebrick of nai erosion for waste liquid incinerator, includes the brick body (10), brick body (10) center sets up hollow chamber (11), its characterized in that: the bottom surface of the brick body (10) is sequentially provided with an acid-resistant refractory layer (20) and a ceramic layer (30), and the top surface is provided with a plurality of concave holes (12); the left side surface of the brick body (10) is provided with a T-shaped lug (13), and the right side surface is provided with a groove (14) matched with the lug (13) in shape; the hollow cavity (11) is filled with a heat insulation layer (15); an anchoring piece (40) is further arranged between the convex block (13) and the heat-insulating layer (15).

2. The acid and alkali resistant and corrosion resistant refractory brick for the waste liquid incinerator according to claim 1, characterized in that: and a refractory fiber board (16) is also arranged on one side of the brick body (10) close to the acid-resistant refractory layer (20).

3. The acid and alkali resistant and corrosion resistant refractory brick for the waste liquid incinerator according to claim 1, characterized in that: the heat-insulating layer (15) is made of air-hardening light refractory castable.

4. The acid and alkali resistant and corrosion resistant refractory brick for the waste liquid incinerator according to claim 1, characterized in that: the anchoring piece (40) comprises a T-shaped stud (41), the vertical part of the stud (41) is positioned in the bump (40), and the horizontal part of the stud (41) is positioned in the heat-insulating layer (15).

5. The acid and alkali resistant and corrosion resistant refractory brick for the waste liquid incinerator according to claim 4, characterized in that: a plurality of T-shaped nail claws (42) are vertically arranged on the horizontal part of the nail column (41), the nail claws (42) are alternately connected to the horizontal part of the nail column (41) at intervals up and down, and the nail claws (42) extend into the brick body (10).