CN215049896U

CN215049896U - Whirlwind fire observation hole

Info

Publication number: CN215049896U
Application number: CN202121047933.8U
Authority: CN
Inventors: 姜晴
Original assignee: ENGINEERING TECHNOLOGY CO Ltd UNIVERSITY OF SCIENCE AND TECHNOLOGY LIAONING
Current assignee: ENGINEERING TECHNOLOGY CO Ltd UNIVERSITY OF SCIENCE AND TECHNOLOGY LIAONING
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-12-07
Anticipated expiration: 2031-05-17

Abstract

The utility model relates to the technical field of heat recovery coke oven coking in the metallurgical industry, in particular to a cyclone observation hole, which is characterized by comprising an outer seat, a fire observation hole cover, an inner seat and cyclone blades, wherein the outer seat is cast and connected with a coke oven body, the outer diameter of the inner seat is in clearance fit with the inner diameter of the outer seat, the cyclone blades are fixedly connected in the inner seat, and the fire observation hole cover is sealed at the opening of the outer seat; a plurality of ventilation channels with diffusing angles are formed between the cyclone blades and the inner seat. Compared with the prior art, the beneficial effects of the utility model are embodied in: 1) when the air input of other air inlets of the coke oven is insufficient, the observation hole is used as the other air inlet of the coke oven; 2) the cyclone blades form cyclone to diffuse in the carbonization chamber, thereby shortening the coking time and improving the productivity; 3) the problem of when air entered into the carbomorphism room through seeing the fire hole, direct impact coal cake surface produced violent combustion, made the serious burning loss of coke below seeing the fire hole, reduce productivity is effectively solved.

Description

Whirlwind fire observation hole

Technical Field

The utility model relates to a metallurgical industry heat recovery coke oven coking technical field especially relates to a whirlwind hole of seeing.

Background

The observation hole is an observation hole which is arranged at the top of the carbonization chamber of the coke oven and is used for observing flame in the hearth and judging the combustion condition. The existing fire observation hole cover for the coke oven is simple in structure, is generally a cover made of common cast iron, and is usually directly in the severe working condition of long-term high-temperature baking of the coke oven, so that the fire observation hole cover made of the cast iron is extremely easy to damage, meanwhile, the heat conductivity coefficient of the fire observation hole cover made of the common cast iron is large, a large amount of heat of a carbonization chamber is dissipated to the surface environment of the top of the coke oven, so that the temperature and energy loss is caused, the operating environment of the top of the coke oven is also deteriorated, and certain danger is provided for the personnel and the health safety of operating workers.

The utility model discloses a chinese utility model patent of application number 91209885.6 discloses a sealed rotatory hole of seeing a fire for heating furnace, the hole of seeing a fire is installed the spheroid on the ball seat with adjusting bolt, is fixed with the handle swivel becket on the pipe of seeing a fire that links to each other with the spheroid to the swivel becket is connected by the chain with the hole of seeing a fire lid, and simple telescope is connected with the hole of seeing a fire lid, and the fixed plate passes through fixing bolt and installs this hole of seeing a fire on the oven. The condition of each part in the furnace is observed by a simple telescope through a sphere which can rotate by 90 degrees freely. The flame observation hole has good sealing performance, can realize a wider range of flame observation effect, but can only play a role of flame observation, and cannot be used for the heat recovery coke oven.

Heat recovery coke oven compares and is favorable to realizing green and clean production than traditional coke oven, the effect of heat recovery coke oven observation hole is except that being used for observing flame burning and the ripe condition of coke in the carbonization chamber, when other air intake air intakes of coke oven are not enough, another inlet air channel of coke oven will be regarded as to the observation hole, the observation hole of current coke oven, because be in negative pressure state in the carbonization chamber, when opening the observation handhole lid, a large amount of air gets into in the carbonization chamber through observation hole rapidly, direct impact briquette surface produces violent burning, make observation hole below coke seriously burn and lose, the phenomenon that the coke cake burnt pit concavity appears even, and the productivity is reduced, treat to improve urgently.

Disclosure of Invention

An object of the utility model is to provide a whirlwind hole of seeing light overcomes prior art's not enough, solves current heat recovery coke oven and opens in process of production and see when the fire hole lid, because be in negative pressure state in the carbomorphism room, a large amount of air gets into in the carbomorphism room through seeing light hole rapidly, and direct impact briquette surface produces violent burning, makes the serious scaling loss of hole of seeing light below coke, reduces the problem of productivity.

In order to achieve the above purpose, the utility model adopts the following technical scheme.

A cyclone fire observation hole is characterized by comprising an outer seat, a fire observation hole cover, an inner seat and cyclone blades, wherein the outer seat is connected with a coke oven body in a pouring manner, the outer diameter of the inner seat is in clearance fit with the inner diameter of the outer seat, the cyclone blades are fixedly connected in the inner seat, and the fire observation hole cover covers the opening of the outer seat; a plurality of ventilation channels with diffusing angles are formed between the cyclone blades and the inner seat.

Furthermore, the number of the cyclone blades is 2-4, the cyclone blades are uniformly arranged around the axis of the cyclone blades, and the cyclone blades are bent by 20-45 degrees along the diagonal line of the cyclone blades or form an included angle of 20-45 degrees with the axis direction of the central window of the observation hole.

Further, the outer seat is of a tubular structure and comprises a matching portion close to the outer side, a pipe body portion close to the inner side and a connecting portion for connecting the two portions, a chamfer is arranged on the outer surface of the connecting portion, and a limiting table with the inner seat is arranged on the inner surface of the connecting portion.

Furthermore, the inner seat is of a tubular structure and comprises a convex edge close to the outer side and a tube body close to the inner side.

Further, a clearance fit sealing strip and a sealing strip edge are arranged between the outer surface of the fire hole cover and the inner diameter of the outer seat.

Furthermore, the inner diameter of the inner seat is 80-200 mm, and the length of the inner seat is 80-200 mm.

Further, the material of at least one of the fire hole cover and the outer seat is any one of vermicular cast iron, gray cast iron or nodular cast iron.

Furthermore, the material of the cyclone blades is heat-resistant steel or stainless steel.

Furthermore, an anchoring part is arranged on the outer side of the tube body of the outer seat.

Furthermore, the quantity of whirlwind blade is 2~4, around seeing hole axis direction align to grid, the whirlwind blade is buckled 20~45 degrees or becomes 20~45 degrees contained angles with the axis direction of central window along its diagonal, the structure of central window is a section and embeds there is the steel pipe of seeing hole glass.

Compared with the prior art, the beneficial effects of the utility model are embodied in: 1) when the air input of other air inlets of the coke oven is insufficient, the observation hole can be used as the other air inlet of the coke oven, so that the application is more flexible; 2) when the fire hole cover is opened, the cyclone blades form resistance to external air when air rapidly enters the carbonization chamber due to negative pressure in the furnace, the air forms cyclone flow through the cyclone blades and is diffused in the carbonization chamber, so that the air is fully mixed with raw gas and is combusted in the carbonization chamber in a large area, and the furnace wall in the carbonization chamber is heated, thereby shortening the coking time and improving the productivity; 3) the device has simple structure, easy operation, maintenance change characteristics such as convenient, can effectively solve when a large amount of air gets into the carbomorphism indoor through seeing the hole, directly assault the coal cake surface and produce violent burning, makes the serious burning loss of coke below seeing the hole, reduces the problem of productivity, and productivity ratio has improved 2% at least.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural view of an embodiment of a cyclone blade in an embodiment of the present invention;

fig. 3 is a schematic view of the bending of the cyclone blades in the embodiment of the present invention;

fig. 4 is a schematic structural view of a second embodiment of the cyclone blade in the embodiment of the present invention;

fig. 5 is a schematic view of an axial angle between the cyclone blade and the inner seat in the embodiment of the present invention.

In the figure: 1-outer seat, 2-fire hole cover, 3-inner seat, 4-coke oven body, 5-cyclone blade, 6-ventilation duct, 7-central window, 8-anchoring piece, 9-handle, 101-matching part, 102-tube body part, 103-connecting part, 201-sealing strip, 202-sealing cover edge, 301-convex edge and 302-tube body.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments:

in the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the cyclone observation hole of the present invention comprises an outer seat 1, an observation hole cover 2, an inner seat 3 and cyclone blades 5, wherein the outer seat 1 is connected with a coke oven body 4 by casting, the outer diameter of the inner seat 3 is in clearance fit with the inner diameter of the outer seat 1, the cyclone blades 5 are fixedly connected in the inner seat 3, and the observation hole cover 2 is covered on the opening of the outer seat 1; a plurality of ventilation ducts 6 with diffusing angles are formed between the cyclone blades 5 and the inner seat 3. The outer seat 1 is a tubular structure and comprises a matching part 101 close to the outer side, a tube body part 102 close to the inner side and a connecting part 103 for connecting the two parts, wherein the outer surface of the connecting part 103 is provided with a chamfer, and the inner surface of the connecting part is provided with a limit table of the inner seat 3. The inner base 3 is a tubular structure and comprises two parts, namely an outer convex edge 301 and an inner pipe body 302. The outer surface of the fire hole cover 2 and the inner diameter of the outer seat 1 are provided with a sealing strip 201 and a sealing edge 202 which are in clearance fit, and the outer surface of the fire hole cover is provided with a handle 9 which is convenient to open. The inner diameter of the inner seat 3 is 119mm, and the length is 180 mm.

The quantity of cyclone 5 is 3, around its axis align to grid, cyclone 5 bends 30 degrees along its diagonal, when opening the fire hole lid, because of stove interior negative pressure, when the air gets into the carbomorphism room rapidly, cyclone can form the resistance to outside air, cyclone's contained angle is favorable to the air to form the whirl and spreads in the carbomorphism indoor, make air and raw coke oven gas intensive mixing, large tracts of land burning in the carbomorphism room, heat the indoor furnace wall of carbomorphism, thereby shorten the coking time, improve the productivity. In order to improve the connection strength between the outer seat and the furnace body, an anchoring piece 8 is arranged outside the tube body part 102 of the outer seat 1.

In the embodiment, the material in the manhole cover 2 and the outer seat 1 is vermicular cast iron. The inner seat 3 and the cyclone blades 5 are made of stainless steel 304, and the lower sides of the cyclone blades are turned over relative to the center line by an included angle to form a ventilation duct with a diffusing angle.

See fig. 4 and 5, which are schematic structural views of the second embodiment of the present invention, the number of the cyclone blades 5 is 3, and the cyclone blades 5 are uniformly arranged around the axis of the central window 7, and the included angle between the cyclone blades 5 and the axis of the central window is 30 degrees, and the central window 7 has a structure of a steel pipe 701 with a built-in viewing hole glass 702.

The utility model has the characteristics of simple structure, easy operation, maintenance change convenience etc, can effectively overcome a large amount of air and get into the carbomorphism room rapidly through seeing the hole, directly strike the briquette surface and produce violent burning, make the serious scaling loss of hole below coke of seeing, reduce the problem of productivity, productivity ratio has improved 2% at least.

The above is only the specific implementation manner of the preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, and according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be included in the protection scope of the present invention.

Claims

1. A cyclone fire observation hole is characterized by comprising an outer seat, a fire observation hole cover, an inner seat and cyclone blades, wherein the outer seat is connected with a coke oven body in a pouring manner, the outer diameter of the inner seat is in clearance fit with the inner diameter of the outer seat, the cyclone blades are fixedly connected in the inner seat, and the fire observation hole cover covers the opening of the outer seat; a plurality of ventilation channels with diffusing angles are formed between the cyclone blades and the inner seat.

2. The cyclone fire hole of claim 1, wherein the number of the cyclone blades is 2-4, the cyclone blades are uniformly arranged around the axis, and the cyclone blades are bent at 20-45 degrees along the diagonal line or form an included angle of 20-45 degrees with the axis direction of the central window of the fire hole.

3. The cyclone fire hole as claimed in claim 1, wherein the outer base is a tubular structure comprising an outer fitting portion, an inner tube body portion and a connecting portion, the outer surface of the connecting portion is provided with a chamfer, and the inner surface of the connecting portion is provided with a limit stop.

4. The cyclone fire hole of claim 1, wherein the inner seat is a tubular structure comprising an outer convex edge and an inner tube body.

5. The cyclone fire hole of claim 1, wherein the fire hole cover has a clearance fit sealing strip and a sealing edge between the outer surface of the fire hole cover and the inner diameter of the outer base.

6. The cyclone fire hole of claim 1, wherein the inner seat has an inner diameter of 80 to 200mm and a length of 80 to 200 mm.

7. The cyclone fire hole of claim 1, wherein the material of at least one of the fire hole cover and the outer seat is any one of vermicular cast iron, gray cast iron or nodular cast iron.

8. The cyclone fire hole of claim 1, wherein the cyclone blades are made of heat-resistant steel or stainless steel.

9. The cyclone fire hole of claim 1, wherein the outer side of the tube body of the outer seat is provided with an anchoring piece.

10. The cyclone fire hole of claim 1, wherein the number of the cyclone blades is 2-4, the cyclone blades are uniformly arranged around the axis direction of the fire hole, the cyclone blades are bent by 20-45 degrees along the diagonal line of the cyclone blades or form an included angle of 20-45 degrees with the axis direction of the central window, and the central window is a section of steel pipe with fire hole glass inside.