CN217785844U

CN217785844U - Top-blown furnace spray gun cooling device

Info

Publication number: CN217785844U
Application number: CN202221871029.3U
Authority: CN
Inventors: 李修来; 朱成保; 汪意
Original assignee: Tongling Dexing Machinery Manufacturing Co ltd
Current assignee: Tongling Dexing Machinery Manufacturing Co ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-11-11
Anticipated expiration: 2032-07-12

Abstract

The utility model provides a top-blown furnace spray gun cooling device, including cooling tube, first fixed plate, second fixed plate, fastening bolt, go out the liquid support, the liquid outlet, the output tube, the input tube, the cooler bin support, the cooler bin, the case lid, the notes liquid mouth, the radiator support, the radiator, the feed liquor support, spout and rob and the inlet, the utility model discloses in, through the setting of cooling tube, when the cooler bin is worked, with coolant liquid input into the cooling tube through the input tube, and then coolant liquid returns to the cooler bin through the output tube, through the circulation of coolant liquid in the cooling tube for spouting the rob to cool down, improve production efficiency, avoid spouting the rob because of high temperature damage, make the cooling device to extensive application simultaneously; through the arrangement of the radiator, the cooling liquid in the cooling box can be effectively radiated, the cooling efficiency is increased, and the practicability of the cooling device is improved; the cooling tube is fixed at the upper end of the spray gun through the first fixing plate and the second fixing plate, and the device does not influence the normal operation of equipment.

Description

Top-blown furnace spray gun cooling device

Technical Field

The utility model relates to a metallurgical furnace accessory especially relates to a top-blown furnace spray gun cooling device.

Background

Top-blown furnaces are the most common installations in existing metallurgical furnaces, where the oxygen enrichment, fuel and part of the reducing agent required in the furnace space are supplied by flame lances projecting from the top, which lances project partly into the molten charge and agitate the charge while supplying the gas and the feed to fully react. The reaction speed of the furnace is high, and the production efficiency is high.

However, this type of furnace has a problem of headache in that the oxygen-enriched tube of the lance is very expensive and is frequently replaced. The problem is solved by the structure that the spray gun of the top-blown converter consists of three basic components of an outer sleeve, a middle oxygen-enriched pipe and an inner coal air pipe which are coaxial, wherein the coal air pipe is connected with external equipment for generating mixed flow of pulverized coal and air. The upper part of the oxygen enrichment pipe is provided with an oxygen enrichment inlet, oxygen enrichment is pumped in a tangential mode through a pressure fan, whirlwind is formed in the oxygen enrichment pipe and moves from top to bottom, the whirlwind and coal dust are mixed when the oxygen enrichment pipe reaches a coal air pipe opening, the mixed coal and coal dust enter a molten pool together and are combusted, and formed flame is sprayed into a hearth. In order to effectively form the cyclone by the rich oxygen, the outer wall of the coal air pipe is provided with spiral plates, and the rich oxygen air flows along the spiral plates. The upper portion of sleeve has the cold wind entry, and outside cold air passes through the fan and from the cold wind entry pump income, generally still pumps the sleeve in tangential direction, lets the wind-flow around the oxygen boosting pipe top-down flow to play the effect of cooling.

The outlet of the coal air pipe is at a certain distance from the oxygen-enriched pipe orifice, so that the coal air and the oxygen-enriched air are mixed. For this reason, the tube wall of the oxygen-enriched tube is directly burnt by the flame and eroded. Most of the spray guns of the top-blown converter are made of stainless steel pipes, so the cost is high, a smelting plant using the converter is generally provided with a plurality of spray guns for alternate use, when the end part (namely the gun head) of the oxygen enrichment pipe of one spray gun is almost corroded, a new spray gun is used for replacing the end part, and when the oxygen enrichment pipe of the spray gun is replaced, a section of stainless steel pipe made of the same material is welded again for standby. Thus, several spray guns are alternately arranged, and although the furnace can be continuously operated, a large amount of stainless steel pipes and working hours are consumed, so that smelting parameters are further deteriorated, and the yield is obviously reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a top-blown converter spray gun cooling device to solve the problem that the aforesaid provided. A top-blown furnace spray gun cooling device comprises a cooling pipe, a first fixing plate, a second fixing plate, a fastening bolt, a liquid outlet support, a liquid outlet, an output pipe, an input pipe, a cooling box support, a cooling box, a box cover, a liquid injection port, a radiator support, a radiator, a liquid inlet support, a spray gun and a liquid inlet, wherein the cooling pipe is sleeved on the outer side of the spray gun; a liquid inlet support is arranged on one side of the cooling pipe, and a liquid inlet is formed in one end of the liquid inlet support; a liquid outlet support is arranged on one side of the cooling pipe away from the liquid inlet support, and a liquid outlet is arranged at one end of the liquid outlet support; the liquid inlet is connected with the cooling box through an input pipe; the liquid outlet and the cooling box are connected through an output pipe.

Preferably, the first fixing plate is fixedly arranged at the outer side of the liquid inlet bracket; the second fixing plate is fixedly arranged on the outer side of the liquid outlet support; the first fixing plate and the second fixing plate are fixedly installed at the upper end of the spray gun through fastening bolts.

Preferably, the cooling box is fixedly installed at one side of the first fixing plate and the second fixing plate through a cooling box bracket.

Preferably, the upper end of the cooling box is provided with a liquid injection port, and a box cover is installed in the liquid injection port through threads.

Preferably, a radiator support is fixedly mounted on one side of the cooling tank, and a radiator is fixedly mounted on the inner side of the radiator support.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses in, through the setting of cooling tube, at the cooler bin during operation, pass through input tube input cooling tube with the coolant liquid in, and then the coolant liquid returns to the cooler bin through the output tube in, rush for spouting through the circulation of coolant liquid in the cooler bin and cool down, improve production efficiency, avoid spouting because of the high temperature damage is robbed, make cooling device arrive extensive application simultaneously.

2. The utility model discloses in, through the setting of radiator, can effectually dispel the heat to the coolant liquid in the cooler bin, increase cooling efficiency, improve cooling device's practicality.

3. The utility model discloses in, the upper end that the cooling tube was robbed in spouting is fixed through first fixed plate and second fixed plate, and the device does not influence the normal operating of equipment.

Drawings

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

Fig. 2 is a schematic plan view of the present invention.

Fig. 3 is a schematic side view of the present invention.

In the figure:

1-cooling pipe, 2-first fixing plate, 3-second fixing plate, 4-fastening bolt, 5-liquid outlet support, 6-liquid outlet, 7-output pipe, 8-input pipe, 9-cooling box support, 10-cooling box, 11-box cover, 12-liquid inlet, 13-radiator support, 14-radiator, 15-liquid inlet support, 16-spray gun and 17-liquid inlet.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

the embodiment is as follows:

as shown in figures 1 to 3

The utility model provides a top-blown converter spray gun cooling device, which comprises a cooling pipe 1, a first fixing plate 2, a second fixing plate 3, a fastening bolt 4, a liquid outlet support 5, a liquid outlet 6, an output pipe 7, an input pipe 8, a cooling box support 9, a cooling box 10, a box cover 11, a liquid inlet 12, a radiator support 13, a radiator 14, a liquid inlet support 15, a spray gun 16 and a liquid inlet 17, wherein the cooling pipe 1 is sleeved outside the spray gun 16; a liquid inlet support 15 is arranged on one side of the cooling pipe 1, and a liquid inlet 17 is arranged at one end of the liquid inlet support 15; a liquid outlet support 5 is arranged on one side of the cooling pipe 1 away from the liquid inlet support 15, and a liquid outlet 6 is arranged at one end of the liquid outlet support 5; the liquid inlet 17 is connected with the cooling box 10 through an input pipe 8; the liquid outlet 6 is connected with the cooling box 10 through an output pipe 7.

In this embodiment, the first fixing plate 2 is fixedly installed at the outer side of the liquid inlet bracket 15; the second fixing plate 3 is fixedly arranged at the outer side of the liquid outlet bracket 5; the first fixing plate 2 and the second fixing plate 3 are fixedly arranged at the upper end of the spray gun 16 through a fastening bolt 4.

In this embodiment, the cooling box 10 is fixedly mounted on one side of the first fixing plate 2 and the second fixing plate 3 through the cooling box bracket 9.

In this embodiment, the cooling box 10 is provided with an injection port 12 at the upper end thereof, and a box cover 11 is screwed into the injection port 12.

In this embodiment, a radiator support 13 is fixedly installed on one side of the cooling box 10, and a radiator 14 is fixedly installed inside the radiator support 13.

Principle of operation

In the utility model, when in use, through the arrangement of the cooling pipe 1, when the cooling box 10 works, the cooling liquid is input into the cooling pipe 1 through the input pipe 8, and then the cooling liquid returns to the cooling box 10 through the output pipe 7, and the spray gun 16 is cooled through the circulation of the cooling liquid in the cooling pipe 1, thereby improving the production efficiency, avoiding the spray gun 16 due to high-temperature damage, and simultaneously leading the cooling device to be widely applied; through the arrangement of the radiator 14, the cooling liquid in the cooling box 10 can be effectively radiated, the cooling efficiency is increased, and the practicability of the cooling device is improved; the cooling pipe 1 is fixed at the upper end of the spray gun 16 through the first fixing plate 2 and the second fixing plate 3, and the device does not influence the normal operation of the equipment.

Utilize technical scheme, or technical staff in the field is in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.

Claims

1. The utility model provides a top-blown furnace spray gun cooling device which characterized in that: the spray gun comprises a cooling pipe (1), a first fixing plate (2), a second fixing plate (3), a fastening bolt (4), a liquid outlet support (5), a liquid outlet (6), an output pipe (7), an input pipe (8), a cooling box support (9), a cooling box (10), a box cover (11), a liquid injection port (12), a radiator support (13), a radiator (14), a liquid inlet support (15), a spray gun (16) and a liquid inlet (17), wherein the cooling pipe (1) is sleeved on the outer side of the spray gun (16); a liquid inlet support (15) is arranged on one side of the cooling pipe (1), and a liquid inlet (17) is arranged at one end of the liquid inlet support (15); a liquid outlet support (5) is arranged on one side of the cooling pipe (1) far away from the liquid inlet support (15), and a liquid outlet (6) is arranged at one end of the liquid outlet support (5); the liquid inlet (17) is connected with the cooling box (10) through an input pipe (8); the liquid outlet (6) is connected with the cooling box (10) through an output pipe (7).

2. A top-blown furnace lance cooling apparatus as set forth in claim 1 wherein: the first fixing plate (2) is fixedly arranged on the outer side of the liquid inlet bracket (15); the second fixing plate (3) is fixedly arranged at the outer side of the liquid outlet bracket (5); the first fixing plate (2) and the second fixing plate (3) are fixedly arranged at the upper end of the spray gun (16) through fastening bolts (4).

3. A top-blown furnace lance cooling apparatus as set forth in claim 2 wherein: the cooling box (10) is fixedly arranged on one side of the first fixing plate (2) and one side of the second fixing plate (3) through a cooling box bracket (9).

4. A top-blown furnace lance cooling apparatus, as defined in claim 3, wherein: the upper end of the cooling box (10) is provided with a liquid injection port (12), and a box cover (11) is installed in the liquid injection port (12) through threads.

5. The top-blown furnace lance cooling apparatus of claim 4 wherein: and a radiator support (13) is fixedly installed on one side of the cooling box (10), and a radiator (14) is fixedly installed on the inner side of the radiator support (13).