Oxygen-enriched side-blown furnace dust removal device

Abstract

The application discloses an oxygen-rich side-blown furnace dust removal device, belongs to the technical field of smelting furnace dust removal, and improves the problem that gas is inconvenient to be filtered multiple times. The device comprises a base, the outer surface of the base is fixedly connected with a filtering mechanism and a collecting mechanism, the filtering mechanism comprises a cyclone dust removal tower and a bag-type dust collector fixedly connected to the upper surface of the base, the outer surface of the cyclone dust removal tower is fixedly connected with a first connecting pipeline, and the other end of the first connecting pipeline is fixedly connected to the inner wall of the bag-type dust collector. The application adopts a two-stage dust removal mode in which the cyclone dust removal tower and the bag-type dust collector are combined, and is equipped with a unique gas circulation filtering system. The air quality sensor is used for monitoring the gas quality in real time, when the gas quality is substandard, the gas can be automatically introduced into the cyclone dust removal tower for secondary filtration, the high quality of the discharged gas is ensured, the dust removal efficiency is greatly improved, and the pollution to the environment is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of dust removal technology for smelting furnaces, and in particular to a dust removal device for an oxygen-enriched side-blown furnace. Background Technology

[0002] A smelting furnace is a device that melts metal ingots and some scrap metals, adds necessary alloying components, and then melts them into the desired alloy through operations such as slag removal and refining. Smelting furnaces can be classified into various types according to different classification methods. Oxygen-enriched side-blown smelting furnaces are one type of smelting furnace. When smelting solid metals, smelting furnaces generate a large amount of dust-containing gas, causing environmental pollution and seriously endangering people's health. Dust removal devices are needed to remove dust.

[0003] Existing dust removal devices are often not suitable for multiple dust filtrations of gases. Most rely on a single dust removal method, such as simple bag filters or cyclone filters, which are difficult to meet increasingly stringent environmental protection requirements. These single dust removal methods are not effective in handling fine dust and high-concentration dust, resulting in dust content exceeding the standard in the exhaust gas. Therefore, there is a problem that it is not convenient to filter the gas multiple times. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the problems existing in the prior art, this utility model provides a dust removal device for an oxygen-enriched side-blown furnace.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: A dust removal device for an oxygen-enriched side-blown furnace, comprising a base, a filtration mechanism and a collection mechanism fixedly connected to the outer surface of the base, the filtration mechanism comprising a cyclone dust collector and a bag filter fixedly connected to the upper surface of the base, a first connecting pipe fixedly connected to the outer surface of the cyclone dust collector, the other end of the first connecting pipe fixedly connected to the inner wall of the bag filter, and a fixed outer shell fixedly connected to the outer surface of the bag filter, a sliding frame slidably connected to the inner wall of the fixed outer shell, and an air quality sensor fixedly connected to the outer surface of the sliding frame; the collection mechanism comprising a collection pipe fixedly connected to the upper surface of the base, and a collection outer shell fixedly connected to the outer surface of the base, a dust discharge pipe fixedly connected to the lower surface of the collection pipe, the other end of the dust discharge pipe fixedly connected to the inner wall of the collection outer shell, and a collection frame slidably connected to the inner wall of the collection outer shell.

[0008] In a preferred embodiment of the oxygen-enriched side-blown furnace dust removal device of the present invention, a first solenoid valve is fixedly connected to the upper surface of the fixed shell, and a fan is fixedly connected to the upper surface of the first solenoid valve.

[0009] By adopting the above technical solution, the gas inside the fixed casing and bag filter can be easily extracted by the fan.

[0010] In a preferred embodiment of the oxygen-enriched side-blown furnace dust removal device of this utility model, the outer surface of the sliding frame is threaded with bolts, and the bolts are threaded to the outer surface of the fixed housing.

[0011] By adopting the above technical solution, the air quality sensor can be easily replaced by sliding the sliding frame from the inner wall of the fixed housing.

[0012] In a preferred embodiment of the oxygen-enriched side-blown furnace dust removal device of the present invention, a second connecting pipe is fixedly connected to the outer surface of the fixed shell, the other end of the second connecting pipe is fixedly connected to the air inlet of the cyclone dust removal tower, and a second solenoid valve is fixedly connected to the outer surface of the second connecting pipe.

[0013] By adopting the above technical solution, the second connecting pipe facilitates the reintroduction of low-quality air from the bag filter into the cyclone dust collector for secondary filtration.

[0014] As a preferred embodiment of the oxygen-enriched side-blown furnace dust removal device of this utility model, the collection mechanism further includes a servo motor fixedly connected to the upper surface of the base, the output shaft of the servo motor being fixedly connected to a spiral conveying shaft, and the outer surface of the spiral conveying shaft being rotatably connected to the inner wall of the collection pipe.

[0015] By adopting the above technical solution, the dust in the collection pipe can be easily guided into the collection frame in the collection shell by starting the servo motor.

[0016] As a preferred embodiment of the oxygen-enriched side-blown furnace dust removal device of this utility model, two sets of dust discharge valves are fixedly connected to the upper surface of the collection pipe. The upper ends of the two sets of dust discharge valves are respectively fixedly connected to the inner wall of the cyclone dust collector and the bag filter. A control panel is fixedly connected to the outer surface of the bag filter.

[0017] By adopting the above technical solution, the dust in the cyclone dust collector and bag filter can be easily guided into the collection pipe by activating the dust discharge valve.

[0018] (III) Beneficial Effects

[0019] This utility model provides a dust removal device for an oxygen-enriched side-blown furnace. It has the following beneficial effects:

[0020] 1. By employing a two-stage dust removal method combining a cyclone dust collector and a bag filter, and equipped with a unique gas circulation filtration system, the gas quality is monitored in real time by an air quality sensor. When the gas quality fails to meet standards, it can be automatically reintroduced into the cyclone dust collector for secondary filtration, ensuring high-quality exhaust gas, greatly improving dust removal efficiency, and effectively reducing environmental pollution.

[0021] 2. Dust from the cyclone dust collector and bag filter can be quickly collected into the collection frame through the dust discharge valve and screw conveyor shaft, facilitating subsequent processing, reducing the amount of manual cleaning, and improving the overall operating efficiency of the equipment. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a front cross-sectional view of the overall structure of this utility model;

[0025] Figure 3 This is a side sectional view of the overall structure of this utility model;

[0026] Figure 4 This is a top-view cross-sectional structural diagram of the entire utility model.

[0027] In the diagram: 1. Base; 2. Filtering mechanism; 201. First connecting pipe; 202. Bag filter; 203. Fixed housing; 204. First solenoid valve; 205. Fan; 206. Second connecting pipe; 207. Second solenoid valve; 208. Cyclone dust collector; 209. Air quality sensor; 210. Sliding frame; 3. Collection mechanism; 301. Collection housing; 302. Dust discharge valve; 303. Dust discharge pipe; 304. Collection frame; 305. Servo motor; 306. Screw conveyor shaft; 307. Collection pipe; 4. Control panel. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0029] Example 1

[0030] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This is the first embodiment of the present invention. This embodiment provides a dust removal device for an oxygen-enriched side-blown furnace, including a base 1. A filter mechanism 2 and a collection mechanism 3 are fixedly connected to the outer surface of the base 1. The filter mechanism 2 includes a cyclone dust collector 208 and a bag filter 202 fixedly connected to the upper surface of the base 1. A first connecting pipe 201 is fixedly connected to the outer surface of the cyclone dust collector 208. The other end of the first connecting pipe 201 is fixedly connected to the inner wall of the bag filter 202. A fixed outer shell 203 is fixedly connected to the outer surface of the bag filter 202. A sliding frame 210 is slidably connected to the inner wall of the fixed outer shell 203. An air quality sensor 209 is fixedly connected to the outer surface of the sliding frame 210.

[0031] Specifically, a first solenoid valve 204 is fixedly connected to the upper surface of the fixed housing 203, a fan 205 is fixedly connected to the upper surface of the first solenoid valve 204, a bolt is threadedly connected to the outer surface of the sliding frame 210, the bolt is threadedly connected to the outer surface of the fixed housing 203, a second connecting pipe 206 is fixedly connected to the outer surface of the fixed housing 203, the other end of the second connecting pipe 206 is fixedly connected to the air inlet of the cyclone dust collector 208, and a second solenoid valve 207 is fixedly connected to the outer surface of the second connecting pipe 206.

[0032] Furthermore, a two-stage dust removal method combining a cyclone dust collector 208 and a bag filter 202 is employed, along with a unique gas circulation filtration system. Air quality is monitored in real time by an air quality sensor 209. When gas quality fails to meet standards, it is automatically reintroduced into the cyclone dust collector 208 for secondary filtration, ensuring high-quality exhaust gas, significantly improving dust removal efficiency, and effectively reducing environmental pollution.

[0033] Example 2

[0034] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The collection mechanism 3 includes a collection pipe 307 fixedly connected to the upper surface of the base 1, and a collection shell 301 fixedly connected to the outer surface of the base 1. A dust discharge pipe 303 is fixedly connected to the lower surface of the collection pipe 307. The other end of the dust discharge pipe 303 is fixedly connected to the inner wall of the collection shell 301, and a collection frame 304 is slidably connected to the inner wall of the collection shell 301.

[0035] The specific collection mechanism 3 also includes a servo motor 305 fixedly connected to the upper surface of the base 1. The output shaft of the servo motor 305 is fixedly connected to a screw conveyor shaft 306. The outer surface of the screw conveyor shaft 306 is rotatably connected to the inner wall of the collection pipe 307. Two sets of dust discharge valves 302 are fixedly connected to the upper surface of the collection pipe 307. The upper ends of the two sets of dust discharge valves 302 are respectively fixedly connected to the inner walls of the cyclone dust collector tower 208 and the bag filter 202. The outer surface of the bag filter 202 is fixedly connected to a control panel 4.

[0036] Furthermore, the dust in the cyclone dust collector 208 and the bag filter 202 can be quickly collected into the collection frame 304 through the dust discharge valve 302 and the screw conveyor shaft 306, which facilitates subsequent processing, reduces the amount of manual cleaning, and improves the overall operating efficiency of the equipment.

[0037] Working Principle: After the smelting operation is completed in the oxygen-enriched side-blown furnace, the high-temperature dust-laden gas generated first undergoes a cooling and desulfurization pretreatment process before being introduced into this dust removal device. This pre-treated gas enters through the inlet of the cyclone dust collector 208. The cyclone dust collector 208 utilizes the centrifugal force generated by its high-speed rotation to perform the initial dust removal operation. Inside the cyclone dust collector 208, the gas flows at a specific velocity and rotation pattern, causing larger dust particles to be thrown against the tower wall under centrifugal force and gradually slide down and accumulate at the bottom, effectively separating most of the large dust particles. This significantly reduces the workload of subsequent dust removal equipment. The gas, pre-filtered by the cyclone dust collector 208, smoothly enters the bag filter 202 through the first connecting pipe 201. The bag filter 202 is equipped with multiple layers of fine filter bags, which have extremely high filtration accuracy and can capture residual fine dust particles in the gas. As gas passes through the filter bags, dust is trapped on the surface, while the purified gas permeates through the bags into the internal space of the bag filter 202 for secondary filtration, further enhancing the purification level. After filtration, the fan 205 starts, extracting the gas from the fixed housing 203 and the bag filter 202. At this time, the air quality sensor 209, mounted on the sliding frame 210, begins to function. It can detect the quality of the filtered gas in real time and accurately, analyze key indicators such as dust content and impurity composition, and feed the detection data back to the control panel 4. When the air quality sensor 209 detects that the gas quality is qualified and meets the emission standards, the control panel 4 controls the first solenoid valve 204 to open, allowing the purified gas to be smoothly discharged through the first solenoid valve 204 for subsequent emission or reuse stages.

[0038] If the air quality sensor 209 detects that the gas quality is substandard, the control panel 4 will react quickly, closing the first solenoid valve 204 and simultaneously activating the second solenoid valve 207. At this time, the substandard gas in the bag filter 202 will be reintroduced into the cyclone dust collector 208 through the second connecting pipe 206. This gas undergoes another dust removal process in the cyclone dust collector 208, receiving a new round of centrifugal separation and dust removal along with the newly entering dust-laden gas, before re-entering the bag filter 202 for secondary filtration. This cycle repeats until the gas quality meets the standards, ensuring that the emitted gas meets environmental protection requirements. To ensure the detection accuracy and reliability of the air quality sensor 209, it needs to be maintained and replaced regularly. Operators can easily slide the sliding frame 210 out of the inner wall of the fixed housing 203 by loosening the bolts threaded on the outer surface of the sliding frame 210, allowing for convenient and quick inspection, cleaning, or replacement of the air quality sensor 209, ensuring it is always in optimal working condition.

[0039] When dust removal is required, the operator activates the dust discharge valve 302 via control panel 4. After the dust discharge valve 302 opens, the dust accumulated in the cyclone dust collector 208 and bag filter 202, under the influence of gravity, flows through the dust discharge valve 302 into the collection pipe 307, activating the servo motor 305 mounted on the upper surface of the base 1. The output shaft of the servo motor 305 drives the screw conveyor shaft 306 to rotate. The screw conveyor shaft 306 continuously rotates within the collection pipe 307, conveying the dust into the collection housing 301. The collection frame 304 within the collection housing 301 collects this dust. As the screw conveyor shaft 306 continuously conveys the dust, it gradually accumulates within the collection frame 304. When the dust in the collection frame 304 reaches a certain amount, the operator can slide the collection frame 304 to remove it from the collection housing 301 for centralized processing, such as recycling or safe landfill, thus completing the entire dust removal and collection process.

[0040] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. An oxygen-enriched side-blown furnace dust removal device comprising a base (1), characterized in that: The outer surface of the base (1) is fixedly connected to a filter mechanism (2) and a collection mechanism (3); The filtration mechanism (2) includes a cyclone dust collector (208) and a bag filter (202) fixedly connected to the upper surface of the base (1). The outer surface of the cyclone dust collector (208) is fixedly connected to a first connecting pipe (201). The other end of the first connecting pipe (201) is fixedly connected to the inner wall of the bag filter (202). The outer surface of the bag filter (202) is fixedly connected to a fixed outer shell (203). The inner wall of the fixed outer shell (203) is slidably connected to a sliding frame (210). The outer surface of the sliding frame (210) is fixedly connected to an air quality sensor (209). The collection mechanism (3) includes a collection pipe (307) fixedly connected to the upper surface of the base (1), and a collection shell (301) is fixedly connected to the outer surface of the base (1). A dust discharge pipe (303) is fixedly connected to the lower surface of the collection pipe (307). The other end of the dust discharge pipe (303) is fixedly connected to the inner wall of the collection shell (301), and a collection frame (304) is slidably connected to the inner wall of the collection shell (301).

2. The dust removal device for an oxygen-enriched side-blown furnace according to claim 1, characterized in that: A first solenoid valve (204) is fixedly connected to the upper surface of the fixed housing (203), and a fan (205) is fixedly connected to the upper surface of the first solenoid valve (204).

3. The dust removal device for oxygen-enriched side blown converter according to claim 2, characterized in that: The outer surface of the sliding frame (210) is threaded with bolts, which are threaded onto the outer surface of the fixed housing (203).

4. The dust removal device for oxygen-enriched side blown converter according to claim 3, characterized in that: The outer surface of the fixed housing (203) is fixedly connected to a second connecting pipe (206), the other end of the second connecting pipe (206) is fixedly connected to the air inlet of the cyclone dust collector (208), and the outer surface of the second connecting pipe (206) is fixedly connected to a second solenoid valve (207).

5. The dust removal device for oxygen-enriched side blown converter according to claim 3, characterized in that: The collection mechanism (3) also includes a servo motor (305) fixedly connected to the upper surface of the base (1). The output shaft of the servo motor (305) is fixedly connected to a spiral conveying shaft (306). The outer surface of the spiral conveying shaft (306) is rotatably connected to the inner wall of the collection pipe (307).

6. The dust removal device for oxygen-enriched side blown converter according to claim 5, characterized in that: Two sets of dust discharge valves (302) are fixedly connected to the upper surface of the collection pipe (307). The upper ends of the two sets of dust discharge valves (302) are fixedly connected to the inner walls of the cyclone dust collector (208) and the bag filter (202), respectively. A control panel (4) is fixedly connected to the outer surface of the bag filter (202).

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