CN210151142U

CN210151142U - Smelting blast furnace cooling device

Info

Publication number: CN210151142U
Application number: CN201921043195.2U
Authority: CN
Inventors: 汪平; 晏利华; 王金林; 姚玉金
Original assignee: MAANSHAN ZHONGTIAN MACHINERY INSTALLED Ltd
Current assignee: MAANSHAN ZHONGTIAN MACHINERY INSTALLED Ltd
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2020-03-17
Anticipated expiration: 2029-07-05

Abstract

The utility model discloses a smelt blast furnace cooling device, including blast furnace body, first cooling body and second cooling structure, the blast furnace body includes the stove body, and stove body bottom sets up the hemisphere stove bottom, and the stove body top is the opening form, and the bell is installed at stove body top, and first cooling body sets up in the stove bottom below, and second cooling body sets up in the stove body outsidely, the utility model discloses structural design is novel, and the cost of manufacture is low, can realize the even cooling to the blast furnace body, has reduced blast furnace body inner wall refractory material's erosion rate, has further prolonged the life of blast furnace.

Description

Smelting blast furnace cooling device

Technical Field

The invention relates to the technical field of motors, in particular to a smelting blast furnace cooling device.

Background

In the metallurgical industry, blast furnace body cooling equipment is an important component of a blast furnace body structure and mainly comprises a cooling plate and a cooling wall. The cooling wall is cast with seamless steel pipes near the furnace shell side, iron castings cast or inlaid with refractory materials near the furnace inner side are called brick-inlaid cooling walls, and glazed cooling walls without bricks. The material of the cooling wall, the cooling wall at the middle upper part of the furnace bottom, the furnace hearth and the furnace body generally adopts common grey cast iron, and the furnace bosh, the furnace waist and the lower part of the furnace body adopt ferrite nodular cast iron or low-chromium heat-resistant cast iron and the like. The cooling plate is made of cast copper, cast iron or cast steel, and the inner mold is a cavity, a partition plate or a cast seamless steel pipe. The cooling device mainly has the following effects on the furnace body: (1) the high-temperature heat transmitted out of the furnace is taken away by cooling equipment, so that the furnace shell is protected; (2) the surface working temperature of the refractory in the blast furnace reaches about 1500 ℃, and if no cooling equipment is provided, the refractory is corroded or worn in a short time. Under the protection of cooling equipment, the erosion resistance and the abrasion resistance of the refractory material can be improved. (3) When most or all of the refractory materials are corroded, the blast furnace production is continuously maintained by the slag crust on the cooling equipment. With the continuous improvement of smelting strength, the erosion of refractory materials is faster, and the cooling wall can be exposed when the furnace is not in the first generation. Once the cooling wall is corroded and damaged, water supply of the cooling wall is stopped, the temperature of the furnace shell is rapidly increased, and the potential safety hazard of cracking of the furnace shell is easy to occur. The blast furnace production is seriously threatened, and safety accidents are easy to occur. Therefore, it is necessary to design a cooling device to cool the furnace body uniformly and rapidly.

Disclosure of Invention

The invention aims to provide a smelting blast furnace cooling device to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a smelt blast furnace cooling device, includes blast furnace body, first cooling body and second cooling body, the blast furnace body includes the stove body, stove body bottom sets up half spherical stove bottom, the stove body top is the opening form, the bell is installed at stove body top, first cooling body sets up in the stove bottom below, second cooling body sets up in the stove body outside.

Preferably, the first cooling mechanism comprises a heat exchanger, a cooling fan, a water cooler and a refrigeration box, a first water outlet pipe of the water cooler is communicated with a water inlet of the heat exchanger, a first water inlet pipe of the water cooler is communicated with a water outlet of the heat exchanger, a second water outlet pipe of the water cooler is communicated with a water inlet of the heat exchanger, a second water inlet pipe of the water cooler is communicated with a water outlet of the heat exchanger, a third water outlet pipe of the water cooler is communicated with a water inlet of the heat exchanger, the first water outlet pipe and the first water inlet pipe are respectively provided with a first electromagnetic valve, the second water outlet pipe and the second water inlet pipe are respectively provided with a second electromagnetic valve, the third water outlet pipe and the third water inlet pipe are respectively provided with a fourth electromagnetic valve, the second water outlet pipe is provided with the refrigeration box, and a third electromagnetic valve is arranged between the second water outlet pipe and the second water inlet pipe, and one end of the cooling fan is connected with the heat exchanger.

Preferably, the second cooling mechanism comprises a cooling cover body, the cooling cover body is arranged outside the blast furnace body, the inner wall of the cooling cover body is provided with a cooling plate, a lower cooling plate, a left cooling plate and a right cooling plate respectively, and the surfaces of the upper cooling plate, the lower cooling plate, the left cooling plate and the right cooling plate are all provided with water cooling assemblies.

Preferably, the water cooling module includes vertical pipeline and Z shape pipeline, vertical pipeline and Z shape pipeline all adopt carbon steel matter to make, the vertical pipeline of welding between two adjacent Z shape pipelines, port welded connection on the Z shape pipeline of vertical pipeline upper end and one side, port welded connection under the Z shape pipeline of vertical pipeline lower extreme and opposite side, the port advances the end for the coolant liquid on the Z shape pipeline, the port is the coolant liquid play end under the Z shape pipeline.

Preferably, the upper cooling plate, the lower cooling plate, the left cooling plate and the right cooling plate are all multilayer graphite heat-conducting plates, and a plurality of heat dissipation through holes are uniformly distributed in the outer wall of the cooling cover body.

Compared with the prior art, the invention has the beneficial effects that:

(1) the invention has novel structural design and low manufacturing cost, can realize uniform cooling of the blast furnace body, reduces the erosion rate of the refractory material on the inner wall of the blast furnace body, and further prolongs the service life of the blast furnace.

(2) The first cooling mechanism is adopted to carry out forced refrigeration by controlling the cooling water of the heat exchanger, thereby improving the heat exchange effect, accelerating the cooling speed of the furnace bottom and further improving the cooling efficiency of the furnace body.

(3) The second cooling mechanism adopted by the invention can carry out omnibearing cooling on the periphery of the high-temperature furnace body, has good cooling uniformity and effectively prevents the deformation phenomenon of the furnace body.

(4) The water cooling assembly adopted by the invention can uniformly carry high heat through the cooling liquid, and further improves the cooling effect of the furnace body.

Drawings

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

FIG. 2 is a schematic structural diagram of a first cooling mechanism according to the present invention;

FIG. 3 is a side view of the present invention;

FIG. 4 is a schematic view of a water cooling module according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a smelt blast furnace cooling device, includes blast furnace body 1, first cooling body 2 and second cooling body 6, blast furnace body 1 includes

stove body

3, 3 bottoms of stove body set up hemisphere stove bottom 4, 3 tops of stove body are the opening form, bell 5 is installed at 3 tops of stove body, first cooling body 2 sets up 4 below at the stove bottom, second cooling body 6 sets up in 3 outsides of stove body.

In the invention, a first cooling mechanism 2 comprises a heat exchanger 7, a cooling fan 8, a water cooler 9 and a refrigeration box 10, a first water outlet pipe 11 of the water cooler 9 is communicated with a water inlet of the heat exchanger 7, a first water inlet pipe 12 of the water cooler 9 is communicated with a water outlet of the heat exchanger 7, a second water outlet pipe 13 of the water cooler 9 is communicated with a water inlet of the heat exchanger 7, a second water inlet pipe 14 of the water cooler 9 is communicated with a water outlet of the heat exchanger 7, a third water outlet pipe 15 of the water cooler 9 is communicated with a water inlet of the heat exchanger 7, a third water inlet pipe 16 of the water cooler 9 is communicated with a water outlet of the heat exchanger 7, a first electromagnetic valve 17 is respectively arranged on the first water outlet pipe 11 and the first water inlet pipe 12, a second electromagnetic valve 18 is respectively arranged on the second water outlet pipe 13 and the second water inlet pipe 14, and a fourth electromagnetic valve 19 is respectively arranged on the third, the second water outlet pipe 13 is provided with a refrigeration box 10, a third electromagnetic valve 20 is further arranged between the second water outlet pipe 13 and the second water inlet pipe 14, and one end of the cooling fan 8 is connected with the heat exchanger 7. The circulation of third solenoid valve 15 control refrigeration case 8 and heat exchanger 5, and four solenoid valves alternative are opened, and remaining are closed to realize reaching the orderliness and the high efficiency of heat transfer according to the operation needs. The first cooling mechanism is adopted to carry out forced refrigeration by controlling the cooling water of the heat exchanger, thereby improving the heat exchange effect, accelerating the cooling speed of the furnace bottom and further improving the cooling efficiency of the furnace body.

In the invention, the second cooling mechanism 6 comprises a cooling cover body 21, the cooling cover body 21 is arranged outside the blast furnace body 1, an upper cooling plate 22, a lower cooling plate 23, a left cooling plate 24 and a right cooling plate 25 are respectively arranged on the inner wall of the cooling cover body 21, and water cooling components are arranged on the surfaces of the upper cooling plate 22, the lower cooling plate 23, the left cooling plate 24 and the right cooling plate 25. Go up cooling plate 22, lower cooling plate 23, left cooling plate 24 and right cooling plate 25 and all adopt the multilayer graphite heat-conducting plate, the cooling cover body 21 outer wall equipartition has a plurality of heat dissipation through-hole. The graphite heat conducting plate has good heat conducting effect, is not easy to deform and has long service life. The second cooling mechanism adopted by the invention can carry out omnibearing cooling on the periphery of the high-temperature furnace body, has good cooling uniformity and effectively prevents the deformation phenomenon of the furnace body.

In the invention, the water cooling assembly comprises a longitudinal pipeline 26 and Z-shaped pipelines 27, the longitudinal pipeline 26 and the Z-shaped pipelines 27 are both made of carbon steel, the longitudinal pipeline 26 is welded between every two adjacent Z-shaped pipelines 27, the upper end of the longitudinal pipeline 26 is welded with the upper port of the Z-shaped pipeline 27 on one side, the lower end of the longitudinal pipeline 26 is welded with the lower port of the Z-shaped pipeline 27 on the other side, the upper port of the Z-shaped pipeline 27 is a cooling liquid inlet end, and the lower port of the Z-shaped pipeline 27 is a cooling liquid outlet end. The water cooling assembly adopted by the invention can uniformly carry high heat through the cooling liquid, and further improves the cooling effect of the furnace body.

In conclusion, the invention has novel structural design and low manufacturing cost, can realize uniform cooling of the blast furnace body, reduces the erosion rate of the refractory material on the inner wall of the blast furnace body, and further prolongs the service life of the blast furnace.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a smelt blast furnace cooling device, includes blast furnace body (1), first cooling body (2) and second cooling body (6), its characterized in that: blast furnace body (1) includes stove body (3), stove body (3) bottom sets up hemisphere stove bottom (4), stove body (3) top is the opening form, bell (5) are installed at stove body (3) top, first cooling body (2) set up in stove bottom (4) below, second cooling body (6) set up in stove body (3) outside.

2. A smelting blast furnace cooling apparatus according to claim 1, wherein: the first cooling mechanism (2) comprises a heat exchanger (7), a cooling fan (8), a water cooler (9) and a refrigeration box (10), a first water outlet pipe (11) of the water cooler (9) is communicated with a water inlet of the heat exchanger (7), a first water inlet pipe (12) of the water cooler (9) is communicated with a water outlet of the heat exchanger (7), a second water outlet pipe (13) of the water cooler (9) is communicated with a water inlet of the heat exchanger (7), a second water inlet pipe (14) of the water cooler (9) is communicated with a water outlet of the heat exchanger (7), a third water outlet pipe (15) of the water cooler (9) is communicated with a water inlet of the heat exchanger (7), a third water inlet pipe (16) of the water cooler (9) is communicated with a water outlet of the heat exchanger (7), and first electromagnetic valves (17) are respectively arranged on the first water outlet pipe (11) and the first water inlet pipe (12), the refrigerator is characterized in that second electromagnetic valves (18) are arranged on the second water outlet pipe (13) and the second water inlet pipe (14) respectively, fourth electromagnetic valves (19) are arranged on the third water outlet pipe (15) and the third water inlet pipe (16) respectively, a refrigeration box (10) is arranged on the second water outlet pipe (13), a third electromagnetic valve (20) is further arranged between the second water outlet pipe (13) and the second water inlet pipe (14), and one end of the cooling fan (8) is connected with the heat exchanger (7).

3. A smelting blast furnace cooling apparatus according to claim 1, wherein: the second cooling mechanism (6) comprises a cooling cover body (21), the cooling cover body (21) is arranged outside the blast furnace body (1), a cooling plate (22), a lower cooling plate (23), a left cooling plate (24) and a right cooling plate (25) are respectively installed on the inner wall of the cooling cover body (21), and the surfaces of the upper cooling plate (22), the lower cooling plate (23), the left cooling plate (24) and the right cooling plate (25) are all provided with water cooling assemblies.

4. A smelting blast furnace cooling apparatus according to claim 3, characterized in that: the water cooling module includes vertical pipeline (26) and Z shape pipeline (27), vertical pipeline (26) and Z shape pipeline (27) all adopt the carbon steel material to make, vertical pipeline (26) of welding between two adjacent Z shape pipelines (27), port welded connection on Z shape pipeline (27) of vertical pipeline (26) upper end and one side, port welded connection under Z shape pipeline (27) of vertical pipeline (26) lower extreme and opposite side, the port advances the end for the coolant liquid on Z shape pipeline (27), the port is the coolant liquid play end under Z shape pipeline (27).

5. A smelting blast furnace cooling apparatus according to claim 3, characterized in that: go up cooling plate (22), lower cooling plate (23), left cooling plate (24) and right cooling plate (25) and all adopt the multilayer graphite heat-conducting plate, the cooling cover body (21) outer wall equipartition has a plurality of heat dissipation through-hole.