Armor type burner protective sleeve

Abstract

The utility model relates to an armor type burner protective sleeve, and belongs to the technical field of coal chemical equipment. The burner protective sleeve comprises a high-temperature-resistant protective sleeve and an alloy protective cover, the high-temperature-resistant protective sleeve integrally wraps the front section of the burner, and the alloy protective cover is clamped on the outer side of an end cover at the front end of the burner and is wrapped and fixed by the high-temperature-resistant protective sleeve. The armor type burner protective sleeve can well protect the front end face of the gasifier burner, prevents high-speed and high-temperature airflow and materials from scouring an end cover of the burner, and prolongs the service life of the burner.

Description

TECHNICAL FIELD

[0001] The utility model relates to gasification furnace burner technical field, concretely relates to a helmet formula burner protection sleeve. BACKGROUND

[0002] With the research and development and improvement in recent years, the effect of the jacketed process burner gradually appears after running, and it is recognized by the majority of coal chemical enterprises. Although the jacketed process burner has good application effect in the coal water slurry gasification process of coal chemical industry, the high temperature and high flow rate in the gasification furnace have great challenges to the service life of the burner. The high temperature crack resistance of the head end cover of the jacketed process burner and the ability to resist the backflow scouring and grinding of the high temperature coal cinder furnace flow field become an important factor affecting the service life of the burner. The market also requires the jacketed process burner to have a longer service cycle, better reliability and stability. SUMMARY

[0003] To solve the problems in the prior art, the utility model patent discloses a helmet formula burner protection sleeve to solve the problem that the head end cover of the existing jacketed process burner is cracked and seriously worn due to the high temperature and high flow rate in the furnace.

[0004] The utility model discloses the technical scheme adopted is: the burner protection sleeve includes a high-temperature protective sleeve and an alloy protective cover, the high-temperature protective sleeve is wholly coated on the outer periphery of the front section of the burner, the alloy protective cover is clamped and fastened on the outer side of the end cover at the front end of the burner and is fixed by the high-temperature protective sleeve.

[0005] Further, a plurality of rows of trapezoidal ribs are welded on the outer periphery of the front section of the burner, and the trapezoidal ribs are coated in the high-temperature protective sleeve.

[0006] Further, the outermost layer of the high-temperature protective sleeve is a stainless steel cylinder, and the inside is filled with high-temperature casting material.

[0007] Further, the alloy protective cover is a two-piece structure, is spliced and connected on the end cover of the burner, and a burner hole is left at the center position of the alloy protective cover.

[0008] Further, the inner annular surface of the burner hole is a conical surface.

[0009] Compared with the prior art, the utility model patent discloses a helmet formula burner protection sleeve, which has the following advantages: the burner protection sleeve is coated with a stainless steel cylinder and has high-temperature casting material built-in, thereby forming a protective layer on the outer periphery of the front section of the burner; the alloy protective cover is arranged on the end cover of the burner, thereby isolating the negative pressure environment caused by the high-speed backflow gas flow and the material particles on the end cover when the burner sprays material at high speed and protecting the end cover from the high-temperature environment in the furnace, improving the high-temperature crack resistance of the end cover and prolonging the service life of the burner. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is the cross-sectional structure diagram of the helmet type burner protection sleeve.

[0011] Figure 2 is the structure diagram of the alloy cover of the helmet type burner protection sleeve.

[0012] Figure 3 is the structure diagram of the trapezoidal rib of the helmet type burner protection sleeve.

[0013] In the figure, 1 is a high-temperature resistant sheath, 2 is an alloy cover, 3 is a trapezoidal rib, 4 is a burner, 11 is a stainless steel cylinder, 12 is a high-temperature resistant casting material, 21 is a burner hole, and 22 is a conical surface. DETAILED DESCRIPTION

[0014] The utility model will be further described below in combination with the drawings and specific embodiments. The technical scheme of the embodiment of the utility model is clearly and completely described, and the described embodiment is only a part of the embodiment of the present application, not all. Based on the embodiment of the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0015] As Figure 1 , 2 , 3, the utility model discloses a kind of helmet type burner protection sleeve, and the burner protection sleeve includes high-temperature resistant sheath 1 and alloy cover 2 in the embodiment, high-temperature resistant sheath 1 is entirely covered in the outer periphery of the front section of burner 4, alloy cover 2 is clamped and fastened to the outer side of the end cover of the front end of burner 4, and is covered and fixed by high-temperature resistant sheath 1.

[0016] Multiple rows of trapezoidal ribs 3 are welded on the outer periphery of the front section of burner 4, and trapezoidal rib 3 is entirely covered in high-temperature resistant sheath 1. The outermost layer of high-temperature resistant sheath 1 is stainless steel cylinder 11 surrounded by stainless steel plate, and filled with high-temperature resistant casting material 12 inside, and the purpose of trapezoidal rib 3 is to improve the connection stability of high-temperature resistant casting material 12 and the outer wall of burner 4, to avoid high-temperature resistant casting material 12 from separating from burner 4 after cooling.

[0017] The alloy protective cover 2 is a two-piece structure, which is cast from high-temperature-resistant and high-impact-resistant alloy material. The alloy protective cover 2 cannot be directly welded with the burner 4, so it is designed as a two-piece structure, and the two pieces are butted together outside the end cover of the burner 4. During assembly, the two pieces of the alloy protective cover 2 are preliminarily fixed by using a clamp, and then the high-temperature-resistant pouring material 12 inside the high-temperature-resistant protective sleeve 1 is poured to fix the alloy protective cover 2 and prevent it from falling off during use. The center of the alloy end cover 2 is provided with a burner hole 21, and the inner ring surface of the burner hole 21 is processed into a conical surface 22 to facilitate the atomization and spraying of the material in the burner 4 and avoid affecting the atomization and spraying of the material.

[0018] The above merely describes preferred embodiments of the present application, and cannot be used to limit the scope of the present application. Any simple equivalent changes and modifications made according to the claims and description of the present application are still within the scope of the present application.

Claims

1. An armoured burner protection sleeve characterised in that, The burner protection sleeve comprises a high-temperature-resistant sheath and an alloy cover, the high-temperature-resistant sheath is integrally wrapped around the outer periphery of the front section of the burner, and the alloy cover is clamped and fastened to the outside of the end cover at the front end of the burner and is fixed by the high-temperature-resistant sheath.

2. A helmet-style burner protection sleeve as defined in claim 1, wherein, The outer periphery of the front section of the burner is welded with a plurality of rows of trapezoidal ribs, which are wrapped in the high-temperature-resistant protective sleeve.

3. A helmet-style burner protection sleeve as defined in claim 2, wherein, The outermost layer of the high-temperature-resistant protective sleeve is a stainless steel cylinder, which is filled with high-temperature-resistant casting material.

4. A helmet-style burner protection sleeve as defined in claim 3, wherein, The alloy cover is a two-piece structure, which is spliced and connected to the end cover of the burner, and a burner hole is left at the center position of the alloy cover.

5. A helmet-style burner protection sleeve as defined in claim 4, wherein, The inner annular surface of the burner hole is a conical surface.

Images