Flue gas collecting and processing device for a submerged arc furnace ladle

Abstract

The utility model is suitable for the technical field of flue gas treatment, provide a kind of smelter ladle flue gas collection and treatment device, comprising: processing tower, be provided with spray mechanism on the processing tower, the spray mechanism is used to spray the purifying agent in the processing tower and carries out purification treatment to smelter ladle flue gas;Collection pipe connected on the processing tower, the collection pipe is used to collect smelter ladle flue gas;Purification box is arranged in the processing tower side, the purification box and the processing tower are communicated, the purification box is provided with the activated carbon for the purification treatment of smelter ladle flue gas in it.The smelter ladle flue gas collection and treatment device provided by the utility model can collect and purify the flue gas discharged from smelter ladle, and can well cool the flue gas, reduce the influence of high-temperature flue gas on activated carbon, and improve the flue gas purification treatment effect.

Description

Technical Field

[0001] This utility model relates to the field of flue gas treatment technology, and in particular to a device for collecting and treating flue gas from molten iron ladles in submerged arc furnaces. Background Technology

[0002] During the casting, transfer, or handling of molten iron ladles in electric arc furnaces, a large amount of high-temperature flue gas is generated. The main components of the flue gas are particulate matter, harmful gases, and volatile organic compounds. If directly emitted, it will seriously pollute the environment and endanger human health.

[0003] By using a suitable flue gas collection and treatment device for molten iron ladles in an electric arc furnace, the flue gas generated by the molten iron ladle can be collected and treated. During treatment, a purifying agent is sprayed onto the flue gas to purify it. The purified flue gas is then further purified by activated carbon installed on the device. When the purifying agent comes into contact with the flue gas, it can both purify and cool the flue gas. However, relying solely on the purifying agent to cool the flue gas has a poor cooling effect. The high temperature in the flue gas melts the inorganic impurities in the activated carbon and blocks the pores, reducing the effectiveness of the activated carbon in adsorbing and purifying the flue gas. Utility Model Content

[0004] To address the technical problem mentioned in the background art regarding the poor cooling effect of flue gas collection and treatment devices for molten iron ladles in submerged arc furnaces, this utility model provides a flue gas collection and treatment device for molten iron ladles in submerged arc furnaces.

[0005] The present invention provides a device for collecting and treating flue gas from a submerged arc furnace (SAF) ladle, comprising: a treatment tower equipped with a spraying mechanism for purifying the flue gas by spraying a purifying agent onto the treatment tower; a collection pipe connected to the treatment tower for collecting the flue gas; a purification box disposed on one side of the treatment tower, connected to the treatment tower, and containing activated carbon for purifying the flue gas; and a cooling mechanism mounted on the treatment tower for cooling the flue gas entering the treatment tower.

[0006] Preferably, the cooling mechanism includes: a water pump fixedly installed on the outer wall of one side of the treatment tower; and an installation pipe fixedly installed on the treatment tower, the installation pipe being connected to the water outlet of the water pump, and the installation pipe having multiple water outlets.

[0007] Preferably, the spraying mechanism includes: a feeding pump fixedly installed on the outer wall of one side of the processing tower; and a spraying seat fixedly installed on the processing tower, wherein the spraying seat is connected to the discharge end of the feeding pump, and the spraying seat is provided with a plurality of spraying heads.

[0008] Preferably, the collecting pipe is provided with a diversion mechanism for diverting the flue gas from the molten iron ladle of the submerged arc furnace into the processing tower. The diversion mechanism includes: a first servo motor fixedly installed on the outer wall of one side of the collecting pipe; a mounting shaft rotatably installed on the collecting pipe, the output shaft of the first servo motor being connected to the bottom end of the mounting shaft via a coupling; and multiple fan blades fixedly installed on the mounting shaft.

[0009] Preferably, the treatment tower is connected to a connecting pipe, one end of which is connected to the purification box, and a fan is provided on one side of the purification box, with the air inlet of the fan connected to the purification box.

[0010] Preferably, the purification chamber is equipped with a drying plate for drying the flue gas entering the purification chamber, and the purification chamber is equipped with multiple filter screens for filtering dust particles in the flue gas.

[0011] Preferably, the treatment tower is provided with a dispersing mechanism, which is used to disperse the purifying agent and cooling water entering the treatment tower. The dispersing mechanism includes: two dispersing frames rotatably installed inside the treatment tower; a second servo motor fixedly installed on one side of the outer wall of the treatment tower, the output shaft of the second servo motor being connected to one end of one of the dispersing frames via a coupling; and two synchronous pulleys respectively fixedly sleeved on the two dispersing frames, with synchronous belts sleeved on the two synchronous pulleys.

[0012] Compared with related technologies, the flue gas collection and treatment device for molten iron ladle in this utility model has the following advantages:

[0013] This utility model provides a device for collecting and treating flue gas from a molten iron ladle in an electric arc furnace: it can collect and purify the flue gas discharged from the molten iron ladle in the electric arc furnace, and can effectively cool the flue gas, reduce the impact of high temperature flue gas on activated carbon, and improve the flue gas purification effect. Attached Figure Description

[0014] Figure 1 A front view schematic diagram of a preferred embodiment of the flue gas collection and treatment device for molten iron ladle of the electric arc furnace provided by this utility model;

[0015] Figure 2 This is a frontal sectional view of the present invention.

[0016] Figure 3 for Figure 2 The diagram shows an enlarged view of part A.

[0017] The following are the labels in the diagram: 1. Treatment tower; 2. Collection pipe; 3. Purification box; 4. Activated carbon; 5. Water pump; 6. Installation pipe; 7. Feed pump; 8. Spray seat; 9. First servo motor; 10. Installation shaft; 11. Fan blade; 12. Connecting pipe; 13. Fan; 14. Drying plate; 15. Filter screen; 16. Disintegration frame; 17. Second servo motor; 18. Synchronous pulley; 19. Synchronous belt. Detailed Implementation

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification and the foregoing drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification or the foregoing drawings are used to distinguish different objects, not to describe a specific order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0019] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] This utility model embodiment provides a device for collecting and treating flue gas from a submerged arc furnace molten iron ladle, such as... Figure 1-3 As shown, the molten iron ladle gas collection and treatment device for an electric arc furnace includes: a treatment tower 1, on which a spraying mechanism is provided for spraying a purifying agent to purify the molten iron ladle gas; a collection pipe 2 connected to the treatment tower 1 for collecting the molten iron ladle gas; a purification box 3 located on one side of the treatment tower 1, connected to the treatment tower 1, and containing activated carbon 4 for purifying the molten iron ladle gas; and a cooling mechanism mounted on the treatment tower 1 for cooling the molten iron ladle gas entering the treatment tower 1.

[0021] In this embodiment, when collecting and treating the flue gas from the molten iron ladle of the submerged arc furnace, a collection hood is first installed on the support of the molten iron ladle. The collection hood is connected to the collection pipe 2. During overall operation, the flue gas generated by the molten iron ladle enters the treatment tower 1 through the collection pipe 2. The flue gas entering the treatment tower 1 is first cooled by a cooling mechanism, which effectively reduces the impact of the high temperature of the flue gas on the activated carbon 4, ensuring the purification effect of the activated carbon 4 on the flue gas and improving the overall treatment capacity and purification quality of the device. A spraying mechanism can spray a purifying agent into the treatment tower 1 to purify the collected flue gas from the molten iron ladle. The purified flue gas enters the purification box 3, where the activated carbon 4 can further adsorb and purify the flue gas, reducing environmental pollution. Through this device, the flue gas discharged from the molten iron ladle of the submerged arc furnace can be collected and purified, and the flue gas can be cooled effectively, reducing the impact of the high temperature of the flue gas on the activated carbon 4 and improving the purification effect of the flue gas.

[0022] In a further preferred embodiment of the present invention, the cooling mechanism includes: a water pump 5 fixedly installed on the outer wall of one side of the treatment tower 1; and an installation pipe 6 fixedly installed on the treatment tower 1, wherein the installation pipe 6 is connected to the water outlet of the water pump 5, and the installation pipe 6 is provided with a plurality of water outlets.

[0023] In this embodiment, when the flue gas generated by the molten iron ladle of the electric arc furnace enters the treatment tower 1 through the collection pipe 2, the water inlet of the water pump 5 is connected to the corresponding low-temperature water source pipeline, the water pump 5 is started to work, and the water is transported to the installation pipe 6. Then, the water is evenly sprayed into the treatment tower 1 through multiple outlets on the installation pipe 6. The sprayed low-temperature water comes into full contact with the high-temperature flue gas. By utilizing the principle of water vaporization and heat absorption, the temperature of the flue gas can be reduced quickly and effectively.

[0024] In a further preferred embodiment of the present invention, the spraying mechanism includes: a feeding pump 7 fixedly installed on the outer wall of one side of the processing tower 1; and a spraying seat 8 fixedly installed on the processing tower 1, wherein the spraying seat 8 is connected to the discharge end of the feeding pump 7, and the spraying seat 8 is provided with a plurality of spraying heads.

[0025] In this embodiment, the cooled flue gas continues to move upwards towards the treatment tower 1. The water inlet of the feed pump 7 is connected to the corresponding purification agent channel. The feed pump 7 is started to extract the purification agent from the storage location and transport it to the spray seat 8. Subsequently, the purification agent is evenly sprayed into the flue gas in the treatment tower 1 in a mist form through multiple spray nozzles on the spray seat 8, making full contact with the flue gas, thereby purifying the dust particles, harmful gases and volatile organic compounds in the flue gas.

[0026] In a further preferred embodiment of this utility model, a diversion mechanism is provided on the collecting pipe 2. The diversion mechanism is used to divert the flue gas from the molten iron ladle of the submerged arc furnace into the processing tower 1. The diversion mechanism includes: a first servo motor 9 fixedly installed on the outer wall of one side of the collecting pipe 2; a mounting shaft 10 rotatably installed on the collecting pipe 2, the output shaft of the first servo motor 9 being connected to the bottom end of the mounting shaft 10 through a coupling; and a plurality of fan blades 11 fixedly installed on the mounting shaft 10.

[0027] In this embodiment, when the molten iron ladle of the electric arc furnace generates flue gas, the first servo motor 9 is started. The output shaft of the first servo motor 9 drives the mounting shaft 10 to rotate through the coupling, thereby causing the multiple fan blades 11 mounted on the mounting shaft 10 to rotate. The power generated by the rotation of the fan blades 11 forms an airflow, which can actively and stably guide the flue gas from the molten iron ladle of the electric arc furnace collected by the collection pipe 2 to the processing tower 1 quickly.

[0028] In a further preferred embodiment of the present invention, a connecting pipe 12 is connected to the treatment tower 1, one end of the connecting pipe 12 is connected to the purification box 3, and a fan 13 is provided on one side of the purification box 3, the air inlet of the fan 13 is connected to the purification box 3.

[0029] In this embodiment, when treating flue gas, the fan 13 is started, and its air inlet generates suction, which causes a negative pressure environment to be formed inside the purification box 3, so that the flue gas purified and discharged from the treatment tower 1 can enter the purification box 3 more smoothly through the connecting pipe 12 for deep purification.

[0030] In a further preferred embodiment of the present invention, a drying plate 14 is provided inside the purification box 3, the drying plate 14 is used to dry the flue gas entering the purification box 3, and a plurality of filter screens 15 are provided inside the purification box 3, the filter screens 15 are used to filter dust particles in the flue gas.

[0031] In this embodiment, the flue gas purified by spraying inside the treatment tower 1 enters the purification box 3 through the connecting pipe 12. The flue gas passes through the drying plate 14, which can absorb the moisture in the flue gas and dry it. Multiple filter screens 15 with different mesh sizes can perform multi-stage filtration of residual dust particles in the flue gas, reducing the content of solid pollutants in the flue gas.

[0032] In a further preferred embodiment of this utility model, a dispersing mechanism is provided on the treatment tower 1. The dispersing mechanism is used to disperse the purifying agent and cooling water entering the treatment tower 1. The dispersing mechanism includes: two dispersing frames 16 rotatably installed inside the treatment tower 1; a second servo motor 17 fixedly installed on one side of the outer wall of the treatment tower 1, the output shaft of the second servo motor 17 being connected to one end of one of the dispersing frames 16 via a coupling; and two synchronous pulleys 18 respectively fixedly sleeved on the two dispersing frames 16, with synchronous belts 19 sleeved on the two synchronous pulleys 18.

[0033] In this embodiment, when the feed pump 7 delivers the purifying agent to the spray seat 8 for spraying, and the water pump 5 delivers the cooling water to the installation pipe 6 for spraying, the second servo motor 17 is started. The output shaft of the second servo motor 17 drives a dispersing frame 16 connected to it to rotate through a coupling. Since the two dispersing frames 16 are respectively fixedly fitted with synchronous pulleys 18, and the two synchronous pulleys 18 are connected by a synchronous belt 19, the rotation of one dispersing frame 16 will drive the other dispersing frame 16 to rotate synchronously. The two dispersing frames 16 rotate at high speed in the treatment tower 1, which powerfully disperses the sprayed purifying agent and the sprayed cooling water, so that the purifying agent and cooling water can fully contact the flue gas.

[0034] In summary, compared with related technologies, this device can collect and purify the flue gas discharged from the molten iron ladle of the electric arc furnace, and can effectively cool the flue gas, reduce the impact of high flue gas temperature on activated carbon 4, and improve the flue gas purification effect.

[0035] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A device for collecting and treating flue gas from a submerged arc furnace molten iron ladle, characterized in that, include: A treatment tower is provided, and a spraying mechanism is provided on the treatment tower. The spraying mechanism is used to spray a purifying agent in the treatment tower to purify the flue gas from the molten iron ladle of the electric arc furnace. A collection pipe connected to the processing tower is used to collect the flue gas from the molten iron ladle of the electric arc furnace; A purification box is installed on one side of the processing tower. The purification box is connected to the processing tower. Activated carbon for purifying the flue gas from the molten iron ladle of the submerged arc furnace is installed inside the purification box. A cooling mechanism is mounted on the processing tower for cooling the flue gas from the molten iron ladle entering the processing tower.

2. The ferroal gas collection and treatment device for molten iron ladle in a submerged arc furnace according to claim 1, characterized in that, The cooling mechanism includes: A water pump is fixedly installed on one side of the outer wall of the treatment tower; An installation pipe is fixedly installed on the treatment tower, and the installation pipe is connected to the outlet end of the water pump. The installation pipe is provided with multiple water outlets.

3. The ferroal gas collection and treatment device for molten iron ladle in a submerged arc furnace according to claim 1, characterized in that, The spraying mechanism includes: A feed pump is fixedly installed on one side of the outer wall of the processing tower; A spraying base is fixedly installed on the processing tower. The spraying base is connected to the discharge end of the feeding pump, and the spraying base is equipped with multiple spray heads.

4. The ferroal gas collection and treatment device for molten iron ladle in a submerged arc furnace according to claim 1, characterized in that, The collecting pipe is equipped with a diversion mechanism, which is used to divert the flue gas from the molten iron ladle of the submerged arc furnace to the processing tower. The diversion mechanism includes: A first servo motor is fixedly installed on the outer wall of one side of the collection tube; Rotate the mounting shaft installed on the collection pipe; the output shaft of the first servo motor is connected to the bottom end of the mounting shaft via a coupling. Multiple fan blades are fixedly mounted on the mounting shaft.

5. The ferroal gas collection and treatment device for molten iron ladle in a submerged arc furnace according to claim 1, characterized in that, The treatment tower is connected to a connecting pipe, one end of which is connected to the purification box. A fan is installed on one side of the purification box, and the air inlet of the fan is connected to the purification box.

6. The ferroal gas collection and treatment device for molten iron ladle in a submerged arc furnace according to claim 1, characterized in that, The purification chamber is equipped with a drying plate for drying the flue gas entering the purification chamber. The purification chamber is also equipped with multiple filter screens for filtering dust particles in the flue gas.

7. The ferroal gas collection and treatment device for molten iron ladle in a submerged arc furnace according to claim 1, characterized in that, The treatment tower is equipped with a dispersing mechanism, which is used to disperse the purifying agent and cooling water entering the treatment tower. The dispersing mechanism includes: Rotate the two dismantling frames installed inside the processing tower; A second servo motor is fixedly installed on the outer wall of one side of the processing tower, and the output shaft of the second servo motor is connected to one end of one of the disassembly frames via a coupling; Two synchronous pulleys are respectively fixedly mounted on the two disassembly frames, and synchronous belts are mounted on the two synchronous pulleys.

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