CN211035976U

CN211035976U - Cast copper cooler of smelting reduction iron-making furnace

Info

Publication number: CN211035976U
Application number: CN201922134960.8U
Authority: CN
Inventors: 阮俊达
Original assignee: Jiangxi Yu Yue Technology Co ltd
Current assignee: Jiangxi Yu Yue Technology Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-07-17
Anticipated expiration: 2029-12-03

Abstract

The utility model discloses a cast copper cooler of smelting reduction ironmaking furnace, including the cooler body, this internal pre-buried cooling circulation circuit that has of cooler, the cooling circulation circuit both ends are connected with the connector respectively, nozzle installation taper hole has been seted up in the concave surface of cooler body, the dovetail has been seted up on the contact surface in cooler body and the stove. A smelting reduction ironmaking furnace cast copper cooler, the cooling effect is good, does not have welding stress fatigue, life surpasss rolling drilling copper cooler, and easy dismounting, low in manufacturing cost uses safe and reliable.

Description

Cast copper cooler of smelting reduction iron-making furnace

Technical Field

The utility model relates to a non-blast furnace ironmaking furnace cooler field especially relates to a copper casting cooler of melting reduction ironmaking furnace.

Background

With the high-speed increase of economic acceleration in China, the high-speed increase is shifted, the economic development mode is shifted from scale speed type extensive increase to quality benefit type intensive increase, the incremental energy expansion of the economic structure is taken as the deep adjustment of the main steering adjustment stock and the excellent increment coexistence, and the steel demand will keep a stable increase trend. But the structural reform of the supply side will promote the steel industry to accelerate the development of intelligent manufacturing and green manufacturing. The traditional steel production has serious environmental pollution, the development of the steel industry bears the pressure of environmental protection, the coking coal resource is in worldwide shortage, and the supply shortage and the price rise become important factors for restricting the development of the traditional steel industry.

The coking and sintering processes are omitted by adopting a smelting reduction iron-making technology, mineral powder and coal powder are sprayed into a molten pool together, the sprayed coal powder is quickly volatilized at high temperature to form C particles, and part of the C particles are melted into a metal molten pool to increase the C content of molten iron; the other part of the slag and the mineral powder are rolled into slag together, and the reduction reaction is completed in the slag to generate iron. The method is a new-generation smelting technology which saves resources and protects the environment, the technical development of the method is generally concerned by the ironmaking industry, but the technology of the melting reduction ironmaking furnace in our country is in the initial stage. The temperature of a molten pool is high, the gas scouring is severe, the drilling copper cooler is tried in the existing furnace body copper cooler, the outlet pipe of the drilling copper cooler adopts a welded structure, the stress concentration is easy to form, and the water is leaked after the use for 3-6 months. Meanwhile, due to the limitation of a drilling technology, a cooling channel cannot be freely arranged, the appearance structure cannot be designed according to the requirement of a furnace type, and a heterosexual structure needs to be assembled in blocks, so that the manufacturing cost is high, assembly dead angles exist, the cooling effect of a product is influenced, and the service life is not ideal enough.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a smelting reduction ironmaking furnace casts copper cooler, the cooling effect is good, does not have welding stress fatigue, and life surpasss rolling drilling copper cooler, and easy dismounting, low in manufacturing cost uses safe and reliable.

In order to achieve the above purpose, the utility model provides a technical scheme is: the cooling device comprises a cooler body, a cooling circulation loop is pre-buried in the cooler body, the two ends of the cooling circulation loop are respectively connected with a pipe connector, a nozzle mounting taper hole is formed in a concave surface of the cooler body, and a dovetail groove is formed in a contact surface of the cooler body and a furnace.

Furthermore, the cooling circulation loop is formed by casting a whole pre-buried pure copper pipe.

Furthermore, the cooling circulation loop is a circular copper pipe or a special-shaped copper pipe and is in a geometric regular or geometric irregular layout.

Furthermore, an external thread is arranged on the connecting pipe head.

Further, the cooler body is of a concave structure.

Further, the cooler body is made of cast copper.

The utility model has the advantages that:

(1) the cooler body adopts an integral structure, the nozzle is arranged in a taper hole of the cooler body, a slag-hanging dovetail groove is arranged on a contact surface, slag is conveniently hung, heat radiation and gas flow scouring are blocked, the nozzle is protected from being gnawed, meanwhile, the copper-casting cooler can be designed according to the existing furnace type structure, and the application range of products is enlarged;

(2) the pre-pure copper pipe structure is adopted, the body and the embedded copper pipe are fused into a whole, the body is very easy to fuse with cast copper, the embedded pipe has good pressure resistance, smooth inner hole and small water resistance, no water leakage phenomenon exists, no welding expansion stress exists, and the use is safe and reliable. The embedded pipe can adopt a round copper pipe or a special-shaped copper pipe according to different requirements, and the loop layout of the cooling water pipe can also be arranged according to the distribution of a thermal field;

(3) the cost is obviously reduced, the service life is long, the disassembly is convenient, the maintenance and replacement time is greatly reduced, the shutdown times are reduced, the labor intensity of workers is reduced, the mixing amount of coal injection ores in unit time can be increased, and the daily output is improved.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

fig. 2 is a left side view of the present invention;

fig. 3 is a plan view of the present invention.

Detailed Description

Example 1

As shown in fig. 1 to 3, a copper casting cooler for a smelting reduction ironmaking furnace includes a cooler body 3, a cooling circulation loop 4 is embedded in the cooler body 3, the two ends of the cooling circulation loop 4 are respectively connected with a pipe joint 1, a nozzle mounting taper hole 6 is arranged in the concave surface of the cooler body 3, the mounting hole is formed by casting the body and finishing machining, and is used for protecting the nozzle from overheating, a dovetail groove 5 is arranged on the contact surface of the cooler body 3 and the furnace, the depth of the dovetail groove 5 is 10mm, the upper opening is 15mm, the lower opening is 25mm, this dovetail obtains for machining behind the cooler body casting shaping, and in the use, smelting reaction slay touches the very big cooler of difference in temperature gradient and forms the crystal adhesion very easily on the wall body, and the dovetail has fine adhesion, prevents that the adhesion slag blanket from droing, blocks that heat radiation and gas flow erode.

The cooling circulation loop 4 is formed by casting a whole pre-buried pure copper pipe.

The cooling circulation loop 4 is a round copper pipe or a special-shaped copper pipe, and is in a geometrical regular or geometrical irregular layout, such as an S shape, a U shape, a concave-convex shape and the like, the surface of the bent and formed copper pipe is polished to be bright, and then the pipe clamp is positioned and embedded in a casting mold to be cast and formed at one time.

The connector 1 is provided with external threads, so that the connector is convenient to connect, and the connector 1 and the pure copper pipe are a whole copper pipe.

The cooler body 3 has a concave structure.

The cooler body 3 is made of cast copper.

The cast copper cooler of the smelting reduction ironmaking furnace has the advantages of good cooling effect, no welding stress fatigue, long service life exceeding that of a rolled drilling copper cooler, convenience in disassembly and assembly, low manufacturing cost, and safety and reliability in use.

The cast copper cooler of the utility model is applicable to various smelting reduction ironmaking furnaces, and the basic principle, the main characteristics and the advantages of the utility model are shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A cast copper cooler of a smelting reduction iron-making furnace is characterized in that: the cooling device comprises a cooler body (3), a cooling circulation loop (4) is pre-buried in the cooler body (3), two ends of the cooling circulation loop (4) are respectively connected with a pipe joint (1), a nozzle mounting taper hole (6) is formed in a concave surface of the cooler body (3), and a dovetail groove (5) is formed in a contact surface between the cooler body (3) and a furnace.

2. A copper cast cooler for a smelting reduction ironmaking furnace according to claim 1, characterized in that: the cooling circulation loop (4) is formed by casting a whole pre-buried pure copper pipe.

3. A copper cast cooler for a smelting reduction ironmaking furnace according to claim 2, characterized in that: the cooling circulation loop (4) is a circular copper pipe or a special-shaped copper pipe and is in a geometric regular or geometric irregular layout.

4. A copper cast cooler for a smelting reduction ironmaking furnace according to claim 1, characterized in that: the pipe joint (1) is provided with an external thread.

5. A copper cast cooler for a smelting reduction ironmaking furnace according to claim 1, characterized in that: the cooler body (3) is of a concave structure.

6. A copper cast cooler for a smelting reduction ironmaking furnace according to claim 1, characterized in that: the cooler body (3) is formed by integrally casting copper.