WO2018184259A1

WO2018184259A1 - High temperature furnace wall protection system

Info

Publication number: WO2018184259A1
Application number: PCT/CN2017/081041
Authority: WO
Inventors: 林文豪
Original assignee: 日上(苏州)轻化纺高科技有限公司
Priority date: 2017-04-07
Filing date: 2017-04-19
Publication date: 2018-10-11
Also published as: CN106839777A

Abstract

A high temperature furnace wall protection system, comprising: a ceramic sheet protective layer (10), a black metal covering layer (20) and a ceramic nail (30); the ceramic sheet protective layer (10) covers a surface of a wall (1) and is mounted and fixed on the surface of the wall (1) by means of the ceramic nail (30); a curing agent (40) is filled between the ceramic sheet protective layer (10) and the wall (1), while a surface of the ceramic sheet protective layer (10) is provided with the black metal covering layer (20); the ceramic nail (30) is provided with a nail cap and a tip, the tip being nailed into the wall by means of the black metal covering layer (20), the ceramic sheet protective layer (10) and the curing agent (40), while the nail cap abuts against the black metal covering layer (20).

Description

Title of the invention: high temperature furnace wall protection system

Technical field

[0001] The present invention relates to the field of high temperature heating furnace technology, and in particular, to a high temperature furnace wall protection system.

Background technique

[0002] Ethylene cracking furnaces, oil refining furnaces, etc. in the petrochemical industry; forging furnaces, galvanized steel furnaces in the steel industry, and roller kiln, shuttle kiln, rotary kiln, etc. in the ceramic industry, usually using polycrystalline mullite refractory bricks The ceramic fiber cotton module is used as the wall of the high temperature heating furnace. However, in the high temperature state above 950 °C, both kinds of heat-dissipating materials will produce crystallization and pulverization. After the use of the long day, the above problems will be deepened, and the service life is generally only 5-10 years. In addition, both are heat-dissipating materials, so the heat emissivity is very low, which results in low heat radiation efficiency and high energy consumption in a high-temperature furnace.

[0003] Therefore, in view of the above problems, it is necessary to propose a further solution.

technical problem

It is an object of the present invention to provide a high temperature furnace wall protection system that overcomes the deficiencies of the prior art.

Problem solution

Technical solution

[0005] In order to achieve the above object, the present invention provides a high temperature furnace wall protection system, comprising: a ceramic sheet protective layer, a black metal coating layer and a ceramic nail;

[0006] The protective layer of the ceramic sheet covers the surface of the wall, and is fixed and fixed on the surface of the wall by the ceramic nail, and the curing agent is filled between the protective layer of the ceramic sheet and the wall. The surface of the ceramic sheet protective layer is provided with the black metal coating layer, the ceramic nail has a nail cap and a tip, and the tip is inserted into the black metal coating layer, the ceramic sheet protective layer and the curing agent In the wall, the nail cap abuts against the black metal cover layer.

[0007] As an improvement of the high temperature furnace wall protection system of the present invention, the wall is refractory brick or ceramic fiber cotton

[0008] As an improvement of the high temperature furnace wall protection system of the present invention, the ceramic sheet protective layer is mainly composed of alumina High alumina corundum mixed with silica or high temperature resistant material made of mullite, terracotta and silica.

[0009] As an improvement of the high temperature furnace wall protection system of the present invention, the ceramic sheet protective layer is a mixture of alumina, magnesia and silicon oxide.

[0010] As a modification of the high temperature furnace wall protection system of the present invention, the ceramic sheet protective layer is several, and several are arranged in an array on the surface of the wall body, and any one of the ceramic sheet protection layers The ceramic nail is mounted and fixed on the surface of the wall.

[0011] As an improvement of the high temperature furnace wall protection system of the present invention, the black metal coating layer is coated on the ceramic sheet protective layer by spraying or by direct high pressure molding, and is solidified by high temperature sintering.

[0012] As a modification of the high temperature furnace wall protection system of the present invention, the black metal coating layer is a black TiO coating layer, an A1 ₂ 0 ₃ coating layer, a Mn0 ₂ _3⁄4 cap layer, a Cr ₂ 0 ₃ coating layer, and Fe ₂ 0 _{3 one of the} overlay layers and the like.

[0013] As an improvement of the high temperature furnace wall protection system of the present invention, the curing agent and the black metal coating layer are uniformly filled with black metal particles.

[0014] As an improvement of the high temperature furnace wall protection system of the present invention, the black metal particles are black TiO particles,

One or more of A1 ₂ 0 ₃ particles, Mn0 ₂ particles, Cr ₂ 0 ₃ particles, and Fe ₂ 0 ₃ particles.

[0015] As an improvement of the high temperature furnace wall protection system of the present invention, the ceramic nail is one of a grub screw, a pointed nail or a pointed screw.

Advantageous effects of the invention

Beneficial effect

Compared with the prior art, the invention has the beneficial effects that: the high temperature furnace wall protection system of the invention has higher high temperature strength and can directly face the erosion against the high temperature hot air flow in the furnace, and is fully effective. The protective refractory brick or ceramic fiber cotton wall is no longer attacked by the wind erosion of the high temperature hot air flow, and the service life of the refractory brick or the ceramic fiber cotton wall is greatly extended. In addition, the high temperature furnace wall protection system of the present invention can greatly increase the radiation intensity of the original lining of the heating furnace, improve the thermal efficiency of the heating furnace, and achieve energy saving.

Brief description of the drawing

DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will The drawings used in the description of the prior art are briefly described. It is obvious that the drawings in the following description are only some of the embodiments described in the present invention, and those skilled in the art do not make creative work. Further drawings can also be obtained from these drawings.

1 is a plan view showing a specific embodiment of a high temperature furnace wall protection system according to the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings, but these embodiments are not intended to limit the invention, the function, method, or Structurally equivalent transformations or substitutions are within the scope of the present invention

[0020] As shown in FIG. 1, the high temperature furnace wall protection system of the present invention comprises: a ceramic sheet protective layer 10, a black metal cladding layer 20 and ceramic nails 30.

[0021] The ceramic sheet protective layer 10 covers the surface of the wall 1 and is mounted and fixed on the surface of the wall 1 by the ceramic nails 30. Wherein, the wall 1 may be refractory brick or ceramic fiber cotton. The ceramic sheet protective layer 10 is a high-aluminum corundum mainly composed of a mixture of alumina and silicon oxide, or a high-temperature resistant material obtained by mixing mullite, a vermiculite and silicon oxide, etc. Layer 10 is resistant to high temperatures of 1700 degrees. Alternatively, the ceramic sheet protective layer 10 is a mixture of alumina, magnesia, and silicon oxide. Therefore, the ceramic sheet protective layer 10 can withstand a high temperature of 1550 degrees and has high heat resistance. Earthquake performance.

[0022] By providing the ceramic sheet protective layer 10, the high temperature furnace wall protection system of the invention has higher high temperature strength, can directly face the erosion against the high temperature hot air flow in the furnace, and can comprehensively and effectively protect the fire. The brick or ceramic fiber cotton wall 1 is no longer attacked by the wind erosion of the high temperature hot air flow, and the service life of the refractory brick or the ceramic fiber cotton wall is greatly extended. Preferably, the ceramic sheet protective layer 10 is several, and several are arranged in an array on the surface of the wall 1. Thereafter, any of the ceramic sheet protective layers 10 are passed through the respective ceramic nails 30. The surface of the wall 1 is mounted and fixed.

[0023] The surface of the ceramic sheet protective layer 10 is provided with a black metal cover layer 20, preferably, the black metal cover layer 20 is coated on the ceramic sheet protective layer 10 by spraying or by direct high pressure molding. And solidified by high temperature sintering. Specifically, the black metal coating layer 20 may be a black TiO coating layer. One of the A1 ₂ 0 ₃ cover layer, the Mn0 ₂ _3⁄4 cap layer, the Cr ₂ 0 ₃ cover layer, and the Fe ₂ 0 ₃ cover layer. By providing the black metal coating layer 20, the high temperature furnace wall protection system of the present invention greatly increases the radiation intensity of the original lining of the heating furnace, improves the thermal efficiency of the heating furnace, and achieves energy saving. In addition, the black metal cover layer 20 has a high strength so that the wall 1 can be fully and effectively protected.

[0024] Further, the ceramic sheet protective layer 10 and the wall 1 are filled with a curing agent 40, and the curing agent 40 is beneficial to the surface of the wall to prevent crystallization and powdering, and is beneficial to The ceramic sheet protective layer 10 is bonded to the wall 1 and fixed. In order to increase the heat emissivity of the curing agent 40, the curing agent 40 contains a heat radiating material. Specifically, the curing agent 40 and the black metal coating layer 20 are uniformly filled with black metal particles. Preferably, the black metal particles are black TiO particles, A1 ₂ 0 ₃ particles, Mn0 ₂ particles, and Cr ₂ 0 ₃ particles. One or more of Fe ₂ 0 ₃ particles.

[0025] The ceramic nail 30 is used to achieve mounting and fixing between the ceramic sheet protective layer 10 and the wall 1. Different ceramic nail structures are used depending on the wall material. Specifically, the ceramic nails 30 may be one of a grub screw, a pointed nail, or a pointed screw. When the ceramic nail 30 is a pointed screw, it has a nail cap and a tip, wherein the tip is driven into the wall through the black metal cover layer 20, the ceramic sheet protective layer 10, and the curing agent 40. And the nail cap abuts against the black metal cover layer 20. Further, the ceramic nail 30 is further provided with a spiral groove 31 which is disposed near the tip end of the ceramic nail 30. By providing the spiral groove 31, the ceramic nail 30 can be more conveniently passed through the refractory brick or the ceramic fiber cotton wall 1, and the ceramic sheet protective layer 10 can be fixed to the refractory brick or the ceramic fiber cotton wall. 1 on the surface. Similarly, when the ceramic nail 30 is a grub screw, it does not have a tip; when the ceramic nail 30 is a pointed nail, it does not have a spiral groove. The above-mentioned flat head screws and pointed nails can also achieve the fixation between the black metal cover layer 20, the ceramic sheet protective layer 10, and the curing agent 40 and the wall body 1 according to different wall materials.

[0026] In summary, the high temperature furnace wall protection system of the invention has higher high temperature resistance, can directly face the erosion against the high temperature hot air flow in the furnace, and can comprehensively and effectively protect the refractory brick or the ceramic fiber cotton wall. The body is no longer invaded by the wind erosion of the hot air flow, and the service life of the refractory brick or the ceramic fiber cotton wall is greatly extended. In addition, the high temperature furnace wall protection system of the invention can greatly improve the radiation intensity of the original lining of the heating furnace, improve the thermal efficiency of the heating furnace, and achieve energy saving.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and The present invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the invention is defined by the appended claims All changes in the meaning and scope of equivalent elements are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim.

In addition, it should be understood that although the description is described in terms of embodiments, not every embodiment includes only one independent technical solution, and the description of the specification is merely for the sake of clarity, and those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments may also be combined as appropriate to form other embodiments that can be understood by those skilled in the art.

Claims

Claim

[Claim 1] A high temperature furnace wall protection system, wherein the high temperature furnace wall protection system comprises: a ceramic sheet protective layer, a black metal coating layer, and a ceramic nail;

The ceramic sheet protective layer covers the surface of the wall and is fixed and fixed on the surface of the wall by the ceramic nail, and the ceramic sheet protective layer and the wall are filled with a curing agent, the ceramic The surface of the sheet protective layer is provided with the black metal coating layer, the ceramic nail has a nail cap and a tip, and the tip is inserted into the wall through the black metal coating layer, the ceramic sheet protective layer and the curing agent The cap is abutted against the black metal cover layer.

[Claim 2] The high temperature furnace wall protection system according to claim 1, wherein the wall is refractory brick or ceramic fiber cotton.

[Claim 3] The high temperature furnace wall protection system according to claim 1, wherein the ceramic sheet protective layer is a high alumina corundum mainly composed of alumina and silicon oxide, or mullite High temperature resistant material made of Dongqingshi and silica.

[Claim 4] The high temperature furnace wall protection system according to claim 1, wherein the ceramic sheet protective layer is a mixture of alumina, magnesia and silicon oxide.

[Claim 5] The high temperature furnace wall protection system according to claim 1, wherein the ceramic sheet protective layer is several, and several are arranged in an array on the surface of the wall body, a ceramic sheet protective layer is mounted and fixed on the surface of the wall by the ceramic nail

[Claim 6] The high temperature furnace wall protection system according to claim 1, wherein the black metal coating layer is covered on the protective layer of the ceramic sheet by spraying or by direct high pressure molding, and passes through High temperature sintering solidification molding.

[Claim 7] The high temperature furnace wall protection system according to claim 1, wherein the black metal coating layer is a black TiO coating layer, an A1 ₂ 0 ₃ coating layer, a Mn0 ₂ _3⁄4 cap layer, Cr ₂ 0 _{3 one of a} cover layer, a Fe ₂ 0 ₃ cover layer, and the like.

[Claim 8] The high temperature furnace wall protection system according to claim 1, wherein the curing agent and the black metal coating layer are uniformly filled with black metal particles.

[Claim 9] The high temperature furnace wall protection system according to claim 8, wherein the black gold The particles are black TiO particles, A1 ₂ _{3 3} particles, Mn0 ₂ particles, Cr ₂ 0 ₃ particles, Fe ₂

0 ₃ one or more of the particles.

[Claim 10] The high temperature furnace wall protection system according to claim 1, wherein the ceramic nail is one of a grub screw, a pointed nail, or a pointed screw.