CN210802084U

CN210802084U - Dust pelletizing system is smelted to high carbon ferrochrome stove

Info

Publication number: CN210802084U
Application number: CN201921731539.9U
Authority: CN
Inventors: 钟健
Original assignee: Sichuan Ebian Yunxing Electrical And Metallurgical Co ltd
Current assignee: Sichuan Ebian Yunxing Electrical And Metallurgical Co ltd
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-06-19
Anticipated expiration: 2029-10-16

Abstract

The utility model discloses a dust pelletizing system is smelted to high carbon ferrochrome stove, including heat exchange equipment and dust collecting equipment, dust collecting equipment's top intercommunication has first filtration equipment, second filtration equipment and third filtration equipment. The utility model discloses in, the three-way valve has linked together blast pipe and air pump, and the benefit of adopting this design lies in: firstly, after being discharged from the heat exchange equipment, the tail gas enters a first filtering device, a second filtering device and a third filtering device in sequence, the dust content in the tail gas is reduced through multiple times of filtering, the filtering degree is improved, and the gas which does not reach the standard is enabled to enter the first filtering device again through a gas pump to be filtered for the second time through the detection of a dust content detection device until the dust content reaches the standard, so that the tail gas with high dust content is prevented from being discharged into the atmosphere; secondly, let in nitrogen gas from the intake pipe and mix with tail gas, help reducing the dust content in the tail gas, and then security when improving the filtration.

Description

Dust pelletizing system is smelted to high carbon ferrochrome stove

Technical Field

The utility model relates to a smelt dust removal technical field, especially relate to a dust pelletizing system is smelted to high carbon ferrochrome stove.

Background

The electric reducing furnace is the main smelting equipment for smelting most of ferroalloy products, and the main raw materials of the electric reducing furnace are ores and reducing agents. After the raw materials are put into the furnace, the raw materials are in a reduction reaction at the high temperature of more than 1500 ℃ in the submerged arc furnace, and the smoke generated by smelting the ferroalloy is inevitable. The main parameters of the smoke in the smelting process include the smoke volume, the temperature, the dust content, the chemical components and the like.

Smelting tail gas contains a large amount of dust, if the dust is not treated, the environment is greatly damaged, the existing smelting dust removal system has the problems of low dust removal rate and low utilization rate of a large amount of waste heat in the tail gas, and further the discharged gas still has pollution to the atmosphere, so that the smelting production is not low-carbon and environment-friendly.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the high-carbon ferrochrome furnace smelting dust removal system is provided for solving the problems that the existing smelting dust removal system is insufficient in removal rate and insufficient in tail gas waste heat utilization rate.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a dust pelletizing system is smelted to high carbon ferrochrome stove, includes heat exchange equipment and dust collecting equipment, dust collecting equipment's top intercommunication has first filtration equipment, second filtration equipment and third filtration equipment, first filtration equipment, second filtration equipment and third filtration equipment three communicate in proper order, first filtration equipment intercommunication has the intake pipe, third filtration equipment intercommunication has dust content check out test set, and is equipped with the three-way valve on the dust content check out test set, the three-way valve passes through air pump and first filtration equipment intercommunication.

As a further description of the above technical solution:

the bottom of the heat exchange equipment is provided with a boiler, and one side of the boiler is provided with a water inlet pipe, a heating pipe and a water supply pipe.

As a further description of the above technical solution:

the heat exchange device is in communication with the first filtering device.

As a further description of the above technical solution:

and a tail gas pipe is arranged on one side of the heat exchange equipment, and the three-way valve is communicated with a gas exhaust pipe.

As a further description of the above technical solution:

and a sedimentation device is arranged in the dust collecting device.

As a further description of the above technical solution:

the first filtering equipment, the second filtering equipment and the third filtering equipment are all filtering filters.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, the last tail gas pipe that has set up of indirect heating equipment, first filtration equipment, second filtration equipment and third filtration equipment have been set up on the collection dirt equipment, have set up the intake pipe on the first filtration equipment, have set up dust content check out test set on the third filtration equipment, have set up the three-way valve on the dust content check out test set, and the three-way valve has linked through blast pipe and air pump, adopts the benefit of this design to lie in: firstly, after being discharged from the heat exchange equipment, the tail gas enters a first filtering device, a second filtering device and a third filtering device in sequence, the dust content in the tail gas is reduced through multiple times of filtering, the filtering degree is improved, and the gas which does not reach the standard is enabled to enter the first filtering device again through a gas pump to be filtered for the second time through the detection of a dust content detection device until the dust content reaches the standard, so that the tail gas with high dust content is prevented from being discharged into the atmosphere; secondly, let in nitrogen gas from the intake pipe and mix with tail gas, help reducing the dust content in the tail gas, and then security when improving the filtration.

2. The utility model discloses in, indirect heating equipment's bottom is equipped with the boiler, and boiler one side is equipped with inlet tube, heating pipe and delivery pipe, and the benefit of adopting this design lies in: heat exchange equipment makes the waste heat of tail gas by the recovery, through boiler heating cold water, heats and supplies water through the water of heating, and then has improved the utilization ratio of waste heat, makes dust collecting equipment low carbon environmental protection.

Drawings

Fig. 1 is a schematic view illustrating an internal connection structure of a dust removing system according to an embodiment of the present invention;

fig. 2 shows a schematic flow diagram of a dust removal system provided according to an embodiment of the present invention.

Illustration of the drawings:

1. a tail gas pipe; 2. a heat exchange device; 3. a boiler; 4. a first filtering device; 5. a second filtering device; 6. a third filtering device; 7. an air inlet pipe; 8. a dust content detection device; 9. a three-way valve; 10. an exhaust pipe; 11. an air pump; 12. a dust collecting device; 13. a water inlet pipe; 14. a heating pipe; 15. a water supply pipe; 16. and (4) a settling device.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a high-carbon ferrochrome furnace smelting dust removal system comprises a heat exchange device 2 and a dust collection device 12, wherein the top of the dust collection device 12 is communicated with a first filtering device 4, a second filtering device 5 and a third filtering device 6, the first filtering device 4, the second filtering device 5 and the third filtering device 6 are sequentially communicated, the first filtering device 4 is communicated with an air inlet pipe 7, the third filtering device 6 is communicated with a dust content detection device 8, the dust content detection device 8 is provided with a three-way valve 9, the three-way valve 9 is communicated with the first filtering device 4 through an air pump 11, filtered tail gas is detected through the dust content detection device 8, and if the dust content is qualified, the tail gas is discharged through the communication between the three-way valve 9 and an exhaust pipe 10; if the dust content is not qualified, the gas is discharged back to the first filtering device 4 through the three-way valve 9 and the air pump 11 for secondary filtering.

Specifically, as shown in fig. 1, the heat exchange device 2 is communicated with the first filtering device 4, the tail gas pipe 1 is arranged on one side of the heat exchange device 2, the exhaust pipe 10 is communicated with the three-way valve 9, the boiler 3 is arranged at the bottom of the heat exchange device 2, the water inlet pipe 13, the heating pipe 14 and the water supply pipe 15 are arranged on one side of the boiler 3, and the tail gas waste heat is collected through the heat exchange device 2 and the boiler 3 for secondary utilization.

Specifically, as shown in fig. 1, a settling device 16 is disposed inside the dust collecting device 12, and the settling device 16 is used for settling the filtered dust for convenient collection.

Specifically, as shown in fig. 1, the first filtering device 4, the second filtering device 5 and the third filtering device 6 are all filtering type filters, and the filtering type filters are more suitable for high-carbon ferrochrome furnace metallurgy production, and contribute to improving the filtering amount of dust and improving the cleanliness of tail gas.

The working principle is as follows: when the device is used, firstly, tail gas is introduced from the tail gas pipe 1, nitrogen is introduced from the gas inlet pipe 7, the tail gas firstly enters the heat exchange equipment 2, is cooled to a proper temperature by the heat exchange equipment 2, then is mixed with the nitrogen and sequentially enters the first filtering equipment 4, the second filtering equipment 5 and the third filtering equipment 6, and then is detected by the dust content detection equipment 8, if the dust content is qualified, the third filtering equipment 6 is communicated with the exhaust pipe 10, and the tail gas is discharged from the exhaust pipe 10; if the dust content is unqualified, the third filtering equipment 6 is communicated with the air pump 11, and the tail gas is pumped to the first filtering equipment 4 again through the air pump 11 for secondary filtering until the dust content is qualified; secondly, cold water is led into the boiler 3 from the water inlet pipe 13, the heat exchange device 2 can provide energy for the boiler 3 to heat the cold water, and the heated hot water can be used through the heating pipe 14 and the water supply pipe 15; finally, the settling equipment 16 can collect the filtered dust, so that subsequent treatment can be conveniently carried out, and the problems of insufficient clearance rate and insufficient utilization rate of waste heat of tail gas of the existing smelting dust removal system can be solved through the steps.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a dust pelletizing system is smelted to high carbon ferrochrome stove, includes heat exchange equipment (2) and collection dirt equipment (12), its characterized in that, the top intercommunication of collection dirt equipment (12) has first filtration equipment (4), second filtration equipment (5) and third filtration equipment (6), first filtration equipment (4), second filtration equipment (5) and third filtration equipment (6) three communicate in proper order, first filtration equipment (4) intercommunication has intake pipe (7), third filtration equipment (6) intercommunication has dust content check out test set (8), and is equipped with three-way valve (9) on dust content check out test set (8), three-way valve (9) are through air pump (11) and first filtration equipment (4) intercommunication.

2. The high-carbon ferrochrome furnace smelting dust removal system according to claim 1, wherein a boiler (3) is arranged at the bottom of the heat exchange device (2), and a water inlet pipe (13), a heating pipe (14) and a water supply pipe (15) are arranged at one side of the boiler (3).

3. A high carbon ferrochrome furnace dust removal system according to claim 1, wherein the heat exchange device (2) is in communication with the first filter device (4).

4. The high-carbon ferrochrome furnace smelting dust removal system according to claim 1, wherein a tail gas pipe (1) is arranged at one side of the heat exchange equipment (2), and the three-way valve (9) is communicated with a gas exhaust pipe (10).

5. The high-carbon ferrochrome furnace smelting dust removal system according to claim 1, wherein the interior of the dust collecting device (12) is provided with a settling device (16).

6. The high-carbon ferrochrome furnace smelting dust removal system according to claim 1, wherein the first filter device (4), the second filter device (5) and the third filter device (6) are all filter type filters.