CN218646081U

CN218646081U - High-temperature flue gate

Info

Publication number: CN218646081U
Application number: CN202223183903.7U
Authority: CN
Inventors: 常崇山; 邢俊朝; 刘金升; 刘威; 牛进才
Original assignee: Jiaozuo Zhongzhou Carbon Co ltd; Henan Zhongtan New Material Technology Co ltd
Current assignee: Jiaozuo Zhongzhou Carbon Co ltd; Henan Zhongtan New Material Technology Co ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-03-17
Anticipated expiration: 2032-11-25

Abstract

The utility model belongs to forge burning furnace auxiliary assembly field, specifically speaking relates to a high temperature flue gate, including valve body and lug, the top middle part of valve body is located to the lug, the inside that the valve body is rectangle and valve body is equipped with the cavity, the top of valve body is equipped with the exhaust hole that is linked together with the cavity, all be coated with high temperature resistant anticorrosive coating on the face of a fire and the face of a fire of valve body. Compared with the prior art, the utility model has the advantages that, this device requires lowly to the flashboard material, and simple manufacture and temperature resistant corrosion resisting property are good, and high temperature resistant anticorrosive coating adhesive force is strong, is difficult for droing, and the structure is more stable, safer in the use, and the life-span is longer, the better quality.

Description

High-temperature flue gate

Technical Field

The utility model belongs to forge burning furnace auxiliary assembly field, specifically speaking relates to a high temperature flue gate.

Background

For the industry of calcining petroleum coke, the quality and the service life of a high-temperature flue gate at the outlet of a calcining furnace directly influence the normal operation level of the furnace. Traditional flue flashboard is generally pour by high temperature resistant cement and is formed, and the resistant air current scouring properties of these flue flashboards is relatively poor, and easy fracture, fracture in the use lead to producing unable normal operating, and cracked flashboard blocks up the flue, and the clearance is very difficult. Water-cooling type gate, light flue flashboard and heat-resisting stainless steel gate also have been gone out in the market, but the water-cooling gate is under high temperature environment, and inside water vaporizes rapidly after being heated by high temperature, leads to the inside pressurized of gate, has the safety problem, and is wasted by the heat after the water cooling, gets into exhaust-heat boiler's heat and reduces. The light flue gate has small volume weight and low strength of the light refractory material, and the light refractory material is easy to fall off due to airflow scouring in a high-temperature flue, so that the production cannot be normally operated. The heat-resistant stainless steel gate is easy to deform when heated, and bulges, welding seam deformation and even breakage and gate air leakage phenomena occur, so that the effect is lost.

Therefore, a need exists for developing a new high-temperature flue gate which has a more stable structure, is safer to use, has a longer service life and has better quality.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the above-mentioned not enough, provide a high temperature flue gate.

The utility model provides a technical scheme as follows:

the utility model provides a high temperature flue gate, includes valve body and lug, the top middle part of valve body is located to the lug, the inside that the valve body is rectangle and valve body is equipped with the cavity, the top of valve body is equipped with the exhaust hole that is linked together with the cavity, all be coated with high temperature resistant anticorrosive coating on the face of a fire and the face of a fire of valve body.

Preferably, rock wool is filled in the cavity, and the purposes of carrying out intermediate support on the fire-facing side valve plate and the back fire side valve plate of the valve body and reducing heat transferred to the back fire side valve plate are achieved.

Preferably, the coating of the high-temperature-resistant anticorrosive coating adopts ZS-1 high-temperature-resistant heat-insulating coating, the ZS-1 high-temperature-resistant heat-insulating coating has good temperature resistance and corrosion resistance, can form a compact ceramic glaze surface at high temperature, can resist the temperature of 2000 ℃ at most, and can resist acid, alkali and corrosion for a long time.

Preferably, the fire facing side valve plate and the fire backing side valve plate of the valve body are both wavy common carbon steel plates or heat-resistant stainless steel plates, and the waves of the fire facing side valve plate and the fire backing side valve plate are oppositely arranged, so that large chambers and small chambers which are alternately distributed are formed in the cavity. This be provided with and do benefit to the temperature resistance who further improves the valve body, make the valve body reduce tearing of welding seam under the condition of expend with heat and contract with cold, simultaneously because big cavity and little cavity set up in turn, make the valve body structurally more symmetrical and stable.

Preferably, be connected with a plurality of high temperature resistant bolts between meet fire side valve plate and the side valve plate of being shaded from the fire, high temperature resistant bolt equipartition is on the lateral wall of little cavity to further improve meet fire side valve plate and the stability of being connected of the side valve plate of being shaded from the fire.

The utility model discloses still including other subassemblies that can make its normal use, be the conventional means in this field, in addition, the utility model discloses in add the device or the subassembly of injecing, all adopt the prior art in this field, have 600 ℃,800 ℃, multiple specifications such as 1200 ℃ and 2000 ℃ like ZS-1 high temperature resistant thermal-insulated heat preservation coating, can choose according to the actual temperature condition and purchase, high temperature resistant bolt also chooses according to the actual temperature condition.

The utility model discloses an operating principle is, through setting up high temperature resistant anticorrosive coating, blocks the flue and to the high temperature heat transfer of valve body, makes the valve body can select more economic ordinary carbon steel or stainless steel material to make, simultaneously, is heated the thermal expansion and arouses the valve body to warp in order to prevent the air in the valve body, sets up the exhaust hole of intercommunication cavity on the top of valve body to play the purpose of pressure release.

Compared with the prior art, the utility model discloses the beneficial effect who gains is: the device has low requirements on the material of the flashboard, simple manufacture, good temperature resistance and corrosion resistance, strong adhesive force of a high-temperature-resistant anticorrosive coating, difficult shedding, more stable structure, safer use, longer service life and better quality.

Drawings

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

Fig. 2 isbase:Sub>A schematic sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1.

Fig. 3 is a schematic structural view of the present invention in embodiment 2.

Fig. 4 is a schematic sectional view along the direction B-B in fig. 2.

Detailed Description

The following describes the present invention in further detail with reference to the drawings and the detailed description.

Example 1:

as shown in fig. 1-2, a high temperature flue gate comprises a valve body 1 and a lifting lug 2, wherein the lifting lug 2 is arranged in the middle of the top end of the valve body 1, the valve body 1 is rectangular, a cavity 3 is arranged inside the valve body 1, exhaust holes 4 communicated with the cavity 3 are formed in the top of the

valve body

1, 2 exhaust holes are formed in the valve body 1 and symmetrically arranged along two sides of the lifting lug 2, and a fire facing surface 11 and a fire backing surface 12 of the valve body 1 are both coated with a high temperature resistant anticorrosive coating (not shown in the figure). Rock wool (not shown in the figure) is filled in the cavity 3, and the purposes of performing intermediate support on the fire-facing side valve plate and the back fire side valve plate of the valve body 1 and reducing heat transferred to the back fire side valve plate are achieved. The coating of the high-temperature-resistant anticorrosive coating adopts ZS-1 high-temperature-resistant heat-insulating coating, the ZS-1 high-temperature-resistant heat-insulating coating has good temperature resistance and corrosion resistance, can form a compact ceramic glaze surface at high temperature, can resist the temperature of 2000 ℃ at most, and can resist acid, alkali and corrosion for a long time.

This application is through setting up high temperature resistant anticorrosive coating, blocks the flue and to the high temperature heat transfer of valve body 1, makes valve body 1 can select more economic ordinary carbon steel or stainless steel material to make, simultaneously, in order to prevent that the air in the valve body 1 is heated the thermal expansion and arouses that valve body 1 warp, sets up the exhaust hole 4 of intercommunication cavity 3 on the top of valve body 1 to play the purpose of pressure release.

Example 2:

as shown in fig. 3 to 4, on the basis of embodiment 1, both the fire-facing side valve plate and the fire-backing side valve plate of the valve body 1 are made of wavy common carbon steel plates, and the fire-facing side valve plate and the fire-backing side valve plate are arranged oppositely in a wavy manner, so that large chambers 31 and small chambers 32 which are alternately distributed are formed in the cavity 3. This be provided with and do benefit to further improvement valve body 1's temperature resistance, make valve body 1 reduce tearing of welding seam under the condition of expend with heat and contract with cold, simultaneously because big cavity 31 and little cavity 32 set up in turn, make valve body 1 structurally more symmetrical and stable. Be connected with a plurality of high temperature resistant bolts 5 between meet fire side valve plate and the side valve plate of being dorsad fire, high temperature resistant bolt 5 equipartition is on the lateral wall of little cavity 32 to further improve the stability that meet fire side valve plate and the side valve plate of being dorsad fire are connected.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. 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 temperature flue gate, includes valve body and lug, the top middle part of valve body, its characterized in that are located to the lug: the valve body is rectangular, a cavity is formed in the valve body, an exhaust hole communicated with the cavity is formed in the top of the valve body, and high-temperature-resistant anticorrosive coatings are coated on the fire-facing surface and the fire-backing surface of the valve body.

2. A high temperature flue gate as recited in claim 1, wherein: rock wool is filled in the cavity.

3. A high temperature flue gate as recited in claim 1, wherein: the paint of the high-temperature-resistant anticorrosive coating adopts ZS-1 high-temperature-resistant heat-insulating paint.

4. A high temperature flue gate according to any one of claims 1 to 3, wherein: the fire facing side valve plate and the fire backing side valve plate of the valve body are both wavy common carbon steel plates or heat-resistant stainless steel plates, and the waves of the fire facing side valve plate and the fire backing side valve plate are oppositely arranged, so that large chambers and small chambers which are alternately distributed are formed in the cavity.

5. A high temperature flue gate according to claim 4, wherein: and a plurality of high-temperature-resistant bolts are connected between the fire-facing side valve plate and the fire-backing side valve plate and are uniformly distributed on the side wall of the small chamber.