Intelligent collecting device for leaked gas of blast furnace of steel mill

Abstract

The utility model discloses a steel mill blast furnace leakage gas intelligent collection device, relates to the technical field of blast furnace gas collection, and provides the following scheme that the steel mill blast furnace leakage gas intelligent collection device comprises a blast furnace body and a blast furnace exhaust port used for gas circulation, and a waste gas recovery mechanism used for absorbing waste gas is arranged on the outer wall of the blast furnace body. The high-definition camera and the infrared camera are used for shooting and monitoring the exhaust port of the blast furnace in real time, and when the intelligent computing power terminal recognizes that the blast furnace leaks waste gas in a video picture, the intelligent computing power terminal calculates the area and the temperature of a leaked waste gas mass according to pictures shot by the infrared camera and the high-definition camera, the waste gas leakage is graded, and the waste gas leakage quality is improved. A waste gas recycling opening of the waste gas recycling mechanism is controlled to move to the position above a waste gas mass, at the moment, a second rotating motor drives a semicircular reciprocating telecontrol mechanism to drive another semicircular mechanism to rotate, the semicircular mechanisms enable a fixing frame and a gas collecting opening to rotate, and a universal shaft connector achieves the supporting and connecting effects; and the gas collection port can be used for carrying out gas suction treatment on different areas.

Description

Technical Field

[0001] This utility model relates to the field of blast furnace gas collection technology, and in particular to an intelligent collection device for leaked gas from a steel plant blast furnace. Background Technology

[0002] The blast furnace is a crucial piece of equipment in the steelmaking process. The reactions within the blast furnace directly determine the yield of finished steel. It is the primary device for reducing iron oxide in iron ore to metallic iron through high-temperature reduction. Inside the blast furnace, by heating and controlling the gas flow, the iron oxide in the iron ore is reduced to metallic iron, thus producing pig iron. Besides pig iron, the blast furnace also produces byproducts such as blast furnace gas, slag, and exhaust gases. Blast furnace exhaust gases contain pollutants such as oxides, nitrogen oxides, and particulate matter, which can impact air quality and cause air pollution. These pollutants are harmful to human health and the environment, for example, causing respiratory and cardiovascular diseases. The exhaust gases may also contain toxic substances such as heavy metals and polycyclic aromatic hydrocarbons, which are harmful to human health. These toxic substances may enter the human body through inhalation or via water and soil, causing various health problems such as poisoning and cancer. Existing blast furnace gas recovery devices can recover harmful gases, but the recovery efficiency is relatively low, and some waste gas will overflow. Moreover, existing blast furnace gas recovery devices cannot adjust the fan rotation speed and need to be running continuously, resulting in a huge waste of electricity.

[0003] To address the shortcomings of existing technologies, a smart collection device for leaked gas from blast furnaces has been developed. Based on machine vision, this device can automatically adjust the direction, start / stop, and suction force of the negative pressure suction pump according to the size of the leak. This device can collect waste gas while also greatly saving resources and protecting the environment. Utility Model Content

[0004] The purpose of this invention is to provide an intelligent collection device for leaked gas from blast furnaces in steel plants, which solves the problem that existing technologies cannot intelligently and automatically collect leaked harmful gases from blast furnaces.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an intelligent collection device for leaked gas from a steel plant blast furnace, comprising a blast furnace body and a blast furnace exhaust port for gas flow. The outer wall of the blast furnace body has a waste gas recovery mechanism for absorbing waste gas. The waste gas recovery mechanism includes a first rotary motor, a universal joint connector, a fixed frame, a gas collection port, a second rotary motor, and a semi-circular reciprocating remote control mechanism. The first rotary motor is connected to the fixed frame via a universal joint connector of a supporting device. One side of the fixed frame is connected to the gas collection port for absorbing waste gas. The output shaft of the second rotary motor passes through the fixed frame and is connected to the semi-circular reciprocating remote control mechanism for adjusting the position of the gas collection port. When the second rotary motor drives the semi-circular reciprocating remote control mechanism to rotate, the gas collection port rotates under the support of the universal joint connector and the fixed frame to adjust the direction of waste gas absorption.

[0006] Preferably, the inner wall of the blast furnace body is equipped with an infrared camera for sensing waste gas, which is opposite to the waste gas recovery mechanism.

[0007] Preferably, the blast furnace body is equipped with a high-definition camera for observing the status.

[0008] Preferably, the high-definition camera is symmetrically arranged inside the blast furnace exhaust port about the blast furnace body.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. It can monitor blast furnace exhaust gas leaks in real time, solve exhaust gas leak problems, and protect the environment.

[0011] 2. Based on machine vision and edge computing terminals, unmanned waste gas leakage collection can be achieved, realizing automated operation.

[0012] 3. The computing terminal classifies the exhaust gas leak based on the area and temperature of the identified exhaust gas cloud. Based on the exhaust gas leak level, it controls the start and stop of the negative pressure suction pump and the speed control of the exhaust gas recovery mechanism. This can prevent the suction pump from being constantly on, save power resources, and reduce the cost of exhaust gas recovery. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the installation and deployment of an intelligent collection device for leaked gas from a steel plant blast furnace, as proposed in this utility model.

[0014] Figure 2 This is a front view schematic diagram of the installation of an intelligent collection device for leaked gas from a steel plant blast furnace, as proposed in this utility model.

[0015] Figure 3 This is a top view schematic diagram of the installation of an intelligent collection device for leaked gas from a steel plant blast furnace, as proposed in this utility model.

[0016] Figure 4 This is a schematic diagram of the waste gas recovery mechanism of an intelligent collection device for leaked gas from a steel plant blast furnace, as proposed in this utility model.

[0017] Figure 5 This is a schematic diagram illustrating the motion principle of the waste gas recovery mechanism of an intelligent collection device for leaked gas from a steel plant blast furnace, as proposed in this utility model.

[0018] Figure 6 This is a schematic diagram of the control circuit of an intelligent collection device for leaked gas from a steel plant blast furnace, as proposed in this utility model.

[0019] Figure 7 This is a schematic diagram illustrating the working principle of an intelligent collection device for leaked gas from a steel plant blast furnace, as proposed in this utility model.

[0020] In the diagram: 1. Blast furnace body; 2. Waste gas recovery mechanism; 21. First rotary motor; 22. Universal joint connector; 23. Fixing frame; 24. Gas collection port; 25. Blower-type suction pump; 26. Fixing plate; 27. Second rotary motor; 28. Semi-circular reciprocating remote control mechanism; 3. Blast furnace exhaust port; 4. Infrared camera; 5. High-definition camera. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This device mainly consists of a high-definition camera, an infrared camera, an AI intelligent computing terminal, and a waste gas recovery mechanism. It is deployed at the waste gas outlet at the top of the blast furnace in a steel plant. Figure 1-3 As shown. High-definition and infrared cameras monitor the blast furnace vents in real time. When the intelligent computing terminal detects blast furnace gas leakage in the video footage, it calculates the area and temperature of the leaking gas cloud based on the images captured by the infrared and high-definition cameras. It then classifies the gas leak and controls the gas recovery port of the gas recovery mechanism to move above the gas cloud. The control method is as follows: Figure 4-5 As shown, the control circuit for the waste gas recovery mechanism controls the start / stop and speed control of the negative pressure suction pump according to the waste gas leakage level. Figure 6 As shown, the data is based on machine vision and edge computing to analyze the waste gas leaking from the blast furnace of a steel plant.

[0023] Example

[0024] like Figure 1-7As shown in the figure, a smart collection device for leaked gas from a steel plant blast furnace includes a blast furnace body 1, a blast furnace exhaust port 3 for penetrating the interior of the blast furnace body 1, a waste gas recovery mechanism 2 for absorbing waste gas on the inner wall of the blast furnace body 1, an infrared camera 4 arranged opposite to the waste gas recovery mechanism 2 inside the blast furnace body 1, and a high-definition camera 5 for observing the status on the inner wall of the blast furnace body 1. The high-definition cameras 5 are symmetrically arranged on the inner wall of the blast furnace body 1.

[0025] Among them, such as Figure 2 As shown, the waste gas recovery mechanism 2 includes a first rotary motor 21. The output end of the first rotary motor 21 is movably connected to a universal joint connector 22, and the other end of the universal joint connector 22 is movably connected to a fixed frame 23. The first rotary motor 21 is connected to the fixed frame 23 through the universal joint connector 22 to support the gas collection port 24 fixedly connected to one side of the fixed frame 23. The bottom end of the gas collection port 24 is provided with a fan-type suction pump 25. The bottom of the first rotary motor 21 is fixedly connected to a fixed plate 26, and the bottom of the fixed plate 26 is fixedly connected to a second rotary motor 27. The second rotary motor 27 passes through the fixed plate 26 and is connected to a semi-circular reciprocating remote control mechanism 28. Another set of semi-circular mechanisms (not shown in the figure) is fixed to the fixed frame 23 to drive the fixed frame 23 and the gas collection port 24 to adjust the overall direction.

[0026] In use: The high-definition camera 5 and the infrared camera 4 are used to monitor the blast furnace exhaust port 3 in real time. When the intelligent computing terminal detects the blast furnace leaking exhaust gas in the video, the intelligent computing terminal calculates the area and temperature of the leaking exhaust gas cloud based on the images captured by the infrared camera 4 and the high-definition camera 5, classifies the exhaust gas leak, and controls the exhaust gas recovery port of the exhaust gas recovery mechanism 2 to move above the exhaust gas cloud. At this time, the second rotary motor 27 drives the semi-circular reciprocating remote control mechanism 28 to drive another set of semi-circular mechanisms to rotate. The semi-circular mechanisms cause the fixed frame 23 and the gas collection port 24 to rotate. The universal joint connector 22 plays a supporting connection role, enabling the gas collection port 24 to perform gas suction treatment on different areas.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart collection device for leaked gas from a steel plant blast furnace, comprising a blast furnace body (1) and a blast furnace exhaust port (3) for gas flow, characterized in that: The outer wall of the blast furnace body (1) has a waste gas recovery mechanism (2) for absorbing waste gas. The waste gas recovery mechanism (2) includes a first rotary motor (21), a universal joint connector (22), a fixed frame (23), a gas collection port (24), a second rotary motor (27), and a semi-circular reciprocating remote control mechanism (28). The first rotary motor (21) is connected to the fixed frame (23) through the universal joint connector (22) of the support equipment. One side of the fixed frame (23) is connected to the gas collection port (24) for absorbing waste gas. The output shaft of the second rotary motor (27) passes through the fixed frame (23) and is connected to the semi-circular reciprocating remote control mechanism (28) for adjusting the position of the gas collection port (24). When the second rotary motor (27) drives the semi-circular reciprocating remote control mechanism (28) to rotate, the gas collection port (24) rotates under the support of the universal joint connector (22) and the fixed frame (23) to adjust the direction of absorbing waste gas.

2. The intelligent collection device for leaked gas from a steel plant blast furnace according to claim 1, characterized in that: The inner wall of the blast furnace body (1) is equipped with an infrared camera (4) for sensing waste gas, which is opposite to the waste gas recovery mechanism (2).

3. The intelligent collection device for leaked gas from a steel plant blast furnace according to claim 1, characterized in that: The blast furnace body (1) is equipped with a high-definition camera (5) for observing the status.

4. The intelligent collection device for leaked gas from a steel plant blast furnace according to claim 3, characterized in that: The high-definition camera (5) is symmetrically arranged in the blast furnace exhaust port (3) about the blast furnace body (1).

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