CN209802117U

CN209802117U - Submerged arc furnace flue gas treatment device

Info

Publication number: CN209802117U
Application number: CN201921795611.4U
Authority: CN
Inventors: 王康; 吴华; 杨胜全
Original assignee: Baise Bisheng Mining Co Ltd
Current assignee: Baise Bisheng Mining Co Ltd
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2019-12-17
Anticipated expiration: 2029-10-24

Abstract

The utility model discloses a submerged arc furnace flue gas processing device, including submerged arc furnace, flue gas pipe and process chamber, the process chamber is the tubular structure, and the process chamber lower extreme sets up down the hopper, flue gas pipe one end and submerged arc furnace are connected, and the other end and process chamber tangential are connected, the periphery of process chamber be provided with the water-cooling jacket, the process chamber is inside to be provided with the cold water pipe, cold water pipe lower extreme extends to down the hopper department, the exit of cold water pipe all sets up at the lower hopper part of cold water pipe; the upper part of the treatment chamber is provided with a spray pipe, the spray pipe is inserted between the inner wall of the treatment chamber and the outer wall of the cold water pipe from the outside, and a downward spray opening is formed in the spray pipe. The utility model discloses flue gas cooling is effectual.

Description

Submerged arc furnace flue gas treatment device

Technical Field

The utility model relates to a hot stove technical field in ore deposit, concretely relates to hot stove flue gas processing apparatus in ore deposit.

Background

The ore-smelting furnace is also called electric arc furnace, it is an industrial electric furnace with huge electric power consumption, it depends on electric arc and electric current to heat and melt through the resistance heat produced by furnace charge, and uses carbon as reducing agent to reduce and smelt metal ore, it is mainly used to produce ferrosilicon, ferromanganese, ferrochromium, ferrotungsten, silicon-manganese alloy and other ferroalloys, it is a common important equipment in metallurgical industry.

The submerged arc furnace generates a large amount of flue gas in the smelting process, the flue gas has higher temperature and more smoke dust, the flue gas can cause environmental pollution when being directly discharged into the atmosphere, and the flue gas needs to be discharged after being cooled and dedusted. In the prior art, generally, when smoke passes through a smoke pipe, cooling treatment is performed, if a spray pipe is arranged in the smoke pipe, the smoke is sprayed by the spray pipe and then combined with smoke dust in the smoke and is discharged, but the current cooling effect is poor, and the smoke reaches a dust collecting system at a higher temperature, so that the service life of the dust collecting system is influenced.

Disclosure of Invention

The utility model discloses the technical problem that will solve is: provides a submerged arc furnace flue gas treatment device with good flue gas cooling effect.

The utility model adopts the technical proposal that: the flue gas treatment device comprises the submerged arc furnace, a flue gas pipe and a treatment chamber, wherein the treatment chamber is of a tubular structure, a blanking hopper is arranged at the lower end of the treatment chamber, one end of the flue gas pipe is connected with the submerged arc furnace, the other end of the flue gas pipe is tangentially connected with the treatment chamber, a water cooling jacket is arranged on the periphery of the treatment chamber, a cold water pipe is arranged inside the treatment chamber, the lower end of the cold water pipe extends to the blanking hopper, and the inlet and the outlet of the cold water pipe are arranged on the blanking hopper part of the cold water pipe; the upper part of the treatment chamber is provided with a spray pipe, the spray pipe is inserted between the inner wall of the treatment chamber and the outer wall of the cold water pipe from the outside, and a downward spray opening is formed in the spray pipe.

Furthermore, a spiral conveyor is arranged below the discharging hopper, a feeding hole of the spiral conveyor is connected with a discharging hole of the discharging hopper, the spiral conveyor realizes mechanization of recycling the sprayed smoke dust, and manual use is reduced.

Furthermore, a vibration motor is arranged on the outer wall of the discharging hopper, and plays an auxiliary role in recovering and discharging the sprayed smoke dust.

Furthermore, the plurality of spray pipes are uniformly distributed on the circumferential wall of the treatment chamber, so that the smoke dust recovery effect is good.

Further, the cold water pipe comprises an inner pipe and an inner pipe jacket, the inner pipe jacket is arranged on the periphery of the inner pipe, and cooling water circulates in the inner pipe jacket. The internal water circulation amount is reduced, and the energy consumption is reduced on the basis of achieving the effect.

After the structure above the adoption, the utility model discloses submerged arc furnace flue gas processing apparatus is through connecting flue gas pipe tangential and process chamber, and flue gas spiral rises, and the process chamber all sets up water cooling plant outward for the flue gas obtains the cooling in two directions, can effectively cool off the flue gas, and the cooling effect is compared in prior art well, and this utility model discloses still set up the material after mechanized processing, reduced artificial use, guaranteed the continuity of processing work, improve work efficiency.

Drawings

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

In the figure, 1, a submerged arc furnace, 2, a flue gas pipe, 3, a treatment chamber, 4, a cold water pipe, 5, a spray pipe, 6, a water cooling jacket, 7, a discharging hopper, 8, a vibration motor, 9 and a screw conveyer.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

As shown in fig. 1, the utility model discloses hot stove flue gas processing apparatus in ore deposit, including hot stove 1 in ore deposit, flue gas pipe 2 and process chamber 3, process chamber 3 is the tubular structure, 3 lower extremes in process chamber set up down hopper 7, flue gas pipe 2 one end and the hot stove 1 in ore deposit are connected, the other end is connected with 3 tangents in process chamber, 3 inner wall spiral rises along process chamber of flue gas after the tangent connection promptly, the periphery of process chamber 3 is provided with water-cooling jacket 6, the inside cold water pipe 4 that is provided with of process chamber 3, 4 lower extremes in cold water pipe extend to hopper 7 departments down, cold water pipe 4 passes through the support to be fixed in process chamber 3, the exit of cold water pipe 4 all sets up hopper 7 parts down at cold water pipe 4, the inlet water pipe of cold water pipe 4 injects down hopper 7 is connected on cold water. The upper part of the treatment chamber 3 is provided with a spray pipe 5, the spray pipe 5 is inserted between the inner wall of the treatment chamber 3 and the outer wall of the cold water pipe 4 from the outside, and the spray pipe 5 is provided with a downward spray opening.

The utility model discloses when concrete implementation, the below of hopper 7 is provided with screw conveyer 9 down, and screw conveyer 9's feed inlet and the discharge gate of hopper 7 are connected down. The lower hopper 7 is a conical hopper, and a vibration motor 8 is arranged on the outer wall of the lower hopper 7. The vibration device is used for vibrating the sprayed and recovered materials, so that the materials can smoothly reach the screw conveyor 9 and are conveyed to the next procedure.

The utility model discloses a shower 5 is a plurality of, evenly distributed on the circumference wall of treatment chamber 3. The cold water pipe 4 comprises an inner pipe and an inner pipe jacket, the inner pipe jacket is arranged on the periphery of the inner pipe, and cooling water circulates in the inner pipe jacket.

The utility model discloses when specifically using, tail gas in the submerged arc furnace passes through flue gas pipe tangential and gets into to the treatment chamber in, and the flue gas spiral shell screwing in the treatment chamber rises, and the flue gas reaches the purpose of cooling with the heat exchange of cold water jacket and cold water pipe, and the cooling effect is good, and degree of mechanization is high.

Claims

1. The utility model provides a hot stove flue gas processing apparatus in ore deposit, includes hot stove in ore deposit, flue gas pipe and process chamber, and the process chamber is the tubular structure, and the process chamber lower extreme sets up down the hopper, flue gas pipe one end and the hot stove in ore deposit are connected, and its characterized in that is connected to the other end and process chamber tangential: a water cooling jacket is arranged on the periphery of the treatment chamber, a cold water pipe is arranged in the treatment chamber, the lower end of the cold water pipe extends to the discharging hopper, and the inlet and the outlet of the cold water pipe are arranged on the discharging hopper part of the cold water pipe; the upper part of the treatment chamber is provided with a spray pipe, the spray pipe is inserted between the inner wall of the treatment chamber and the outer wall of the cold water pipe from the outside, and a downward spray opening is formed in the spray pipe.

2. The submerged arc furnace flue gas treatment device according to claim 1, characterized in that: and a spiral conveyor is arranged below the discharging hopper, and a feeding hole of the spiral conveyor is connected with a discharging hole of the discharging hopper.

3. The submerged arc furnace flue gas treatment device according to claim 2, characterized in that: and a vibration motor is arranged on the outer wall of the discharging hopper.

4. The submerged arc furnace flue gas treatment device according to claim 1, characterized in that: the spraying pipes are distributed on the circumferential wall of the treatment chamber uniformly.

5. The submerged arc furnace flue gas treatment device according to claim 1, characterized in that: the cold water pipe comprises an inner pipe and an inner pipe jacket, the inner pipe jacket is arranged on the periphery of the inner pipe, and cooling water circulates in the inner pipe jacket.