CN218820984U

CN218820984U - Hot blast stove with waste heat recovery structure

Info

Publication number: CN218820984U
Application number: CN202222843262.7U
Authority: CN
Inventors: 李�杰
Original assignee: Weinan Yilin Environmental Protection Technology Co ltd
Current assignee: Weinan Yilin Environmental Protection Technology Co ltd
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-04-07
Anticipated expiration: 2032-10-27

Abstract

The utility model discloses a hot-blast furnace with waste heat recovery structure, including the hot-blast furnace main part, the cover is established and fixedly connected with set casing on the middle part outer wall of hot-blast furnace main part, fixedly connected with air-supply line on one side lateral wall of set casing, and the lower extreme fixedly connected with heat exchange tube of set casing, fixedly connected with guide duct on one side lower extreme lateral wall of air-supply line are kept away from to the hot-blast furnace main part, the beneficial effects of the utility model are that: the utility model discloses a set up the set casing of installing the heat exchange tube on the outer wall of hot-blast furnace main part, the heat exchange tube is linked together through the connecting pipe and the fixed pipe that is used for discharging fume, and communicate with each other through the inside of guide duct and hot-blast furnace main part, during the use, the flue gas passes through after the connecting pipe gets into the heat exchange tube, the heat exchange tube can give the air in the set casing with most heat transfer in the flue gas, and hot-air after the set casing internal heating can get into in the hot-blast furnace through the guide duct, most heat in the recoverable flue gas, and reduce the heat that consumes when admitting air, reach waste heat recovery's purpose.

Description

Hot blast stove with waste heat recovery structure

Technical Field

The utility model relates to a hot-blast furnace technical field specifically is a hot-blast furnace with waste heat recovery structure.

Background

Hot blast stove is a heat power machine, and has become a substitute product of electric heat source and traditional steam power heat source in many industries, and the hot blast stove has many varieties and complete series, and is divided into two types of hand burning and machine burning by a coal feeding mode, and is divided into coal, oil and gas furnaces by fuel types.

The hot-blast furnace can discharge a large amount of flue gases at the during operation, and contain a large amount of heats in these flue gases, and these flue gases are arranged in the air after, and the time has been of a specified duration can cause peripheral temperature to rise gradually, influences the normal growth of staff's work and peripheral vegetation, and hot-blast furnace work need last inside air inlet, and outside cold air gets into inside the hot-blast furnace after, can consume some heats in the hot-blast furnace, reduces the heat in the hot-blast furnace, is unfavorable for the normal work of hot-blast furnace.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hot-blast furnace with waste heat recovery structure to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a hot-blast furnace with waste heat recovery structure, includes the hot-blast furnace main part, the cover is established and fixedly connected with set casing on the middle part outer wall of hot-blast furnace main part, fixedly connected with air-supply line on the lateral wall of one side of set casing, the lower extreme fixedly connected with heat exchange tube of set casing, fixedly connected with guide duct on the lateral wall of one side lower extreme that the air-supply line was kept away from to the hot-blast furnace main part, the one end fixed connection that the hot-blast furnace main part was kept away from to the guide duct is on the lower extreme lateral wall of set casing, fixedly connected with fixed pipe on the upper end lateral wall of hot-blast furnace main part, fixed pipe passes through connecting pipe and heat exchange tube fixed connection.

Preferably, fixedly connected with installation pipe on the positive lateral wall of fixed pipe, the inside of installation pipe runs through and threaded connection has communicating pipe, the inside grafting of the positive one end of communicating pipe has the sealing plug.

Preferably, the outer diameter of one end of the front surface of the communicating pipe is larger than that of the mounting pipe, and the ends of the communicating pipe, which are connected with the connecting pipe and the fixed pipe, are located on the same central line.

Preferably, the one end that fixed pipe was kept away from to the connecting pipe runs through and fixed connection on the upper end lateral wall of set casing, just the outside parcel of connecting pipe has the heat preservation.

Preferably, the heat exchange tube is of a spiral structure and is sleeved on the hot blast stove main body, and one end, far away from the connecting tube, of the heat exchange tube extends to the outside of one side of the fixing shell.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a set up the set casing of installing the heat exchange tube on the outer wall of hot-blast furnace main part, the heat exchange tube is linked together through the connecting pipe and the fixed pipe that is used for discharging fume, and communicate with each other through the inside of guide duct and hot-blast furnace main part, during the use, the flue gas passes through after the connecting pipe gets into the heat exchange tube, the heat exchange tube can give the air in the set casing with most heat transfer in the flue gas, and hot-air after the set casing internal heating can get into in the hot-blast furnace through the guide duct, most heat in the recoverable flue gas, and reduce the heat that consumes when admitting air, reach waste heat recovery's purpose.

Drawings

FIG. 1 is a schematic sectional view of the present invention;

fig. 2 is a schematic external structural view of the present invention;

FIG. 3 is a schematic view of the installation structure of the communicating tube and the connecting tube on the fixed tube according to the present invention;

fig. 4 is a schematic top view of the heat exchange tube of the present invention in the fixing casing.

In the figure: 1. a hot blast main body; 2. a stationary case; 3. a heat exchange pipe; 4. an air inlet pipe; 5. an air guide pipe; 6. fixing the tube; 7. a connecting pipe; 8. installing a pipe; 9. a communicating pipe; 10. and (4) sealing the plug.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a hot-blast furnace with waste heat recovery structure, including hot-blast furnace main part 1, the cover is established and fixedly connected with set casing 2 on the middle part outer wall of hot-blast furnace main part 1, fixedly connected with air-supply line 4 on the lateral wall of one side of set casing 2, the lower extreme fixedly connected with heat exchange tube 3 of set casing 2, fixedly connected with guide duct 5 on the lateral wall of one side lower extreme that hot-blast furnace main part 1 was kept away from to hot-blast furnace main part 1, the one end fixed connection that hot-blast furnace main part 1 was kept away from to guide duct 5 is on the lateral wall of the lower extreme of set casing 2, fixedly connected with fixed tube 6 on the lateral wall of the upper end of hot-blast furnace main part 1, fixed tube 6 passes through connecting pipe 7 and heat exchange tube 3 fixed connection, the one end that fixed tube 6 was kept away from to connecting pipe 7 runs through and fixed connection is on the lateral wall of the upper end of set casing 2, and the outside parcel of connecting pipe 7 has the heat preservation, be convenient for carry the flue gas in the heat exchange tube 3, conveniently retrieve the heat in the flue gas.

Heat exchange tube 3 is helical structure and cover and establishes on hot-blast furnace main part 1, the one end that connecting pipe 7 was kept away from to heat exchange tube 3 extends to one side of set casing 2 outside, but furthest extension flue gas pipeline, increase heat transfer time, improve and preheat recovery efficiency, fixedly connected with installation pipe 8 on the positive lateral wall of fixed pipe 6, the inside of installation pipe 8 is run through and threaded connection has communicating pipe 9, the inside grafting of the positive one end of communicating pipe 9 has sealing plug 10, the external diameter of the positive one end of communicating pipe 9 is bigger than the external diameter of installation pipe 8, the one end that communicating pipe 9 and connecting pipe 7 and fixed pipe 6 meet is located same central line, can conveniently water in connecting pipe 7 and heat exchange tube 3 during the use, the inside that corresponds connecting pipe 7 and heat exchange tube 3 washs.

Specifically, use the utility model discloses the time, will the utility model discloses move to the place of work, will switch on, in operation, the flue gas that the inside fuel of hot-blast furnace main part 1 produced can rise, and carry in the heat exchange tube 3 through fixed pipe 6 and connecting pipe 7, heat in the flue gas can heat the pipe wall of heat exchange tube 3, and the heat exchange tube 3 of heating can heat the air in set casing 2, and then retrieve partial heat in the flue gas, then the flue gas discharges heat exchange tube 3, blow to the inside of set casing 2 through air-supply line 4 simultaneously, the wind that gets into in set casing 2 can accelerate the air flow velocity in set casing 2, make the air in set casing 2 get into in hot-blast furnace main part 1 through guide duct 5 fast, guarantee that hot-blast furnace main part 1 normally works; after the work, rotatable communicating pipe 9 will be inserted communicating pipe 9 inside the one end that connecting pipe 7 connects fixed pipe 6, extract sealing plug 10 to link together conduit and communicating pipe 9, water to the inside of connecting pipe 7 and heat exchange tube 3 through communicating pipe 9, wash the cigarette ash in connecting pipe 7 and the heat exchange tube 3, avoid influencing the heat conduction effect that cigarette ash influences heat exchange tube 3.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hot-blast furnace with waste heat recovery structure, its characterized in that, includes hot-blast furnace main part (1), cover on the middle part outer wall of hot-blast furnace main part (1) establishes and fixedly connected with set casing (2), fixedly connected with air-supply line (4) on one side lateral wall of set casing (2), the lower extreme fixedly connected with heat exchange tube (3) of set casing (2), fixedly connected with guide duct (5) on one side lower extreme lateral wall that air-supply line (4) were kept away from to hot-blast furnace main part (1), the one end fixed connection that hot-blast furnace main part (1) was kept away from in guide duct (5) is on the lower extreme lateral wall of set casing (2), fixedly connected with fixed tube (6) on the upper end lateral wall of hot-blast furnace main part (1), fixed tube (6) are through connecting pipe (7) and heat exchange tube (3) fixed connection.

2. The hot blast stove with the waste heat recovery structure according to claim 1, characterized in that: fixedly connected with installation pipe (8) on the positive lateral wall of fixed pipe (6), the inside of installation pipe (8) is run through and threaded connection has communicating pipe (9), the inside grafting of the positive one end of communicating pipe (9) has sealing plug (10).

3. The hot blast stove with the waste heat recovery structure according to claim 2, characterized in that: the outer diameter of one end of the front face of the communicating pipe (9) is larger than that of the mounting pipe (8), and the communicating pipe (9) and one end, connected with the connecting pipe (7) and the fixing pipe (6), of the communicating pipe are located on the same central line.

4. The hot blast stove with the waste heat recovery structure according to claim 1, characterized in that: one end of the connecting pipe (7) far away from the fixed pipe (6) penetrates through and is fixedly connected to the side wall of the upper end of the fixed shell (2), and the outer side of the connecting pipe (7) is wrapped with a heat insulation layer.

5. The hot blast stove with the waste heat recovery structure according to claim 1, wherein: the heat exchange tube (3) is of a spiral structure and is sleeved on the hot blast stove main body (1), and one end, far away from the connecting tube (7), of the heat exchange tube (3) extends to the outside of one side of the fixed shell (2).