Air quality detection equipment for metal smelting environment assessment

Abstract

The utility model provides a kind of air quality detection equipment for metal smelting environment evaluation, comprising: box;Driving assembly, the driving assembly includes drive motor, the drive motor is suspended in the box inside.The air quality detection equipment for metal smelting environment evaluation provided by the utility model is mutually matched by ventilation pipe, fan, first gas pipe, second gas pipe, shunt component, driving assembly and filter component etc. structure, when using, left and right sides ventilation hood alternate work, cooperate filter screen, both can continuously collect air sample to detect, and when ventilation hood switches working state, utilize airflow to carry out automatic cleaning to filter screen, avoid the problem that filter screen is jammed due to dust accumulation and influence ventilation volume and detection accuracy, improve the detection accuracy of detection equipment;And this automatic cleaning filter screen design reduces the working frequency that staff regularly cleans filter screen, reduces the labor intensity and maintenance cost of staff.

Description

Technical Field

[0001] This utility model relates to the field of air detection equipment technology, and in particular to an air quality detection device for environmental assessment in metal smelting. Background Technology

[0002] During the production process in metal smelting plants, a large amount of complex gases are generated, including toxic gases such as CO and SO2. If these gases are not effectively monitored and controlled, they can cause serious damage to the health of workers if inhaled. To ensure the occupational health and safety of workers, gas detection equipment is usually installed at the breathing zone height (1-2m) to monitor the concentration of toxic gases in the air in real time.

[0003] However, the environment in metal smelting plants is extremely complex. Smelting operations generate a large amount of dust. Detection equipment works in such an environment for a long time, and dust easily accumulates on the sensors of the detection equipment. Dust accumulation on the sensor surface will interfere with its accurate detection of gas composition and concentration, thereby affecting the detection effect of the detection equipment, causing the detection data to be biased and unable to truly reflect the air quality in the working environment.

[0004] To address the impact of dust on testing equipment, current technology typically involves installing filters at the air inlet to block dust and reduce its entry into the equipment. However, with prolonged use, dust accumulates on the filters, easily causing blockage. Blockage not only significantly reduces airflow, affecting the efficiency of air sample collection, but also further lowers testing accuracy. To ensure the normal operation of the testing equipment, staff need to regularly clean the dust from the filters, increasing both their workload and maintenance costs.

[0005] Therefore, it is necessary to provide a new air quality testing device for environmental assessment in metal smelting to solve the above-mentioned technical problems. Utility Model Content

[0006] This invention provides an air quality testing device for environmental assessment in metal smelting, which solves the problems of easy clogging of filters, affecting the testing effect and high maintenance cost of existing air quality testing devices for metal smelting environments.

[0007] The air quality detection equipment for environmental assessment in metal smelting provided by this utility model includes: Box; A drive assembly, the drive assembly including a drive motor, the drive motor being suspended inside the housing; The flow splitter assembly includes a flow splitter box and a flow splitter plate. The flow splitter plate divides the flow splitter box into two cavities. The drive shaft of the drive motor passes through the flow splitter box and is connected to the flow splitter plate. The detector is installed inside the housing, and a sensor probe is fixedly installed at the monitoring end of the detector. An air extraction assembly includes a ventilation pipe, a fan, a first air pipe, and a second air pipe. The ventilation pipe is installed on the top of the sensor probe. The fan and the second air pipe are respectively installed at both ends of the ventilation pipe. The second air pipe is connected to the diversion box, and the first air pipe connects the fan and the diversion box. Two filter components are respectively disposed on both sides of the housing. Each filter component includes a ventilation hood, a filter screen, and a third air pipe. The ventilation hood is embedded in the housing, the filter screen is fixedly installed at the opening of the ventilation hood, and the third air pipe connects the ventilation hood and the diversion box.

[0008] Preferably, the diversion box is circular.

[0009] Preferably, the drive assembly further includes a driving conical wheel, two driven conical wheels, and two transmission rods. The drive motor is fixedly mounted on the top of the housing. The driving conical wheel is fixedly mounted on the drive shaft. The two driven conical wheels are respectively engaged with the two sides of the driving conical wheel. The transmission rods are arranged one-to-one with the driven conical wheels, and one end of the transmission rod is connected to the driven conical wheel. The air quality detection equipment for environmental assessment of metal smelting also includes two cleaning components, which are configured in a one-to-one correspondence with the filter components. The cleaning assembly includes a rotating plate and a cleaning brush. The other end of the transmission rod passes through the ventilation hood and the filter screen in sequence and is connected to the rotating plate. The cleaning brush is fixedly installed on the rotating plate and is fitted to the filter screen.

[0010] Preferably, the air quality detection equipment for environmental assessment in metal smelting further includes an installation component and a transmission component. The installation component is located on the back of the housing, and the transmission component is used to drive the installation component to unfold for installation on the channel steel column.

[0011] Preferably, the mounting assembly includes a mounting frame and two movable plates; The mounting frame is located on the back of the housing, and the two movable plates are slidably inserted into both sides of the mounting frame; The transmission assembly includes a rotating rod, a worm gear, a worm wheel, two threaded rods, and two bases; The movable plate, the base, and the threaded rod are arranged in a one-to-one correspondence; two bases are spaced apart in the mounting frame, the threaded rod is rotatably mounted on the base, the two threaded rods are respectively fixedly mounted on both sides of the worm gear, one threaded rod is threadedly connected to the interior of the corresponding movable plate, and the threads of the two threaded rods are opposite in direction; One end of the rotating rod extends through the mounting frame and is rotatably connected to the mounting frame. The worm gear is mounted on the rotating rod, and the worm wheel meshes with the worm gear.

[0012] Preferably, the mounting assembly further includes a snap-fit ​​groove and a snap-fit ​​plate. The snap-fit ​​groove is formed in the mounting frame, the snap-fit ​​plate is snapped into the snap-fit ​​groove, and the snap-fit ​​plate is fixedly mounted on the back of the housing.

[0013] Preferably, the mounting assembly further includes two anti-slip pads, which are provided in a one-to-one correspondence with the movable plate, and the anti-slip pads are fixedly installed on the end of the movable plate away from the mounting frame.

[0014] Compared with related technologies, the air quality detection device for environmental assessment in metal smelting provided by this utility model has the following beneficial effects: This utility model provides an air quality testing device for environmental assessment in metal smelting. Through the coordinated structure of ventilation ducts, fans, a first air duct, a second air duct, a flow distribution assembly, a drive assembly, and a filter assembly, the device operates with alternating left and right ventilation hoods working in conjunction with the filter. This allows for continuous air sample collection and testing, while also automatically cleaning the filter using airflow when the ventilation hoods switch operating modes. This avoids the problem of dust accumulation and clogging affecting ventilation and testing accuracy, thus improving the accuracy of the testing equipment. Furthermore, this automatic filter cleaning design reduces the frequency of regular filter cleaning by staff, lowering labor intensity and maintenance costs. Attached Figure Description

[0015] Figure 1 A schematic diagram of the first embodiment of the air quality detection equipment for environmental assessment of metal smelting provided by this utility model; Figure 2 for Figure 1 A cross-sectional view of the splitter component shown; Figure 3 for Figure 1 The diagram shows the airflow principle of the extraction assembly and the diversion assembly. Figure 3 (a) is a first schematic diagram of the air extraction assembly and the flow splitter assembly; Figure 3 (b) is the first state diagram of the splitter component; Figure 3 (c) is a second schematic diagram of the air extraction assembly and the flow splitter assembly; Figure 3 (d) is the second state diagram of the splitter component; Figure 4 for Figure 1 The diagram shown is a schematic diagram of the design principle of the detector. Figure 5 for Figure 1 The enlarged schematic diagram of part A shown below; Figure 6 for Figure 1 The enlarged schematic diagram of section B is shown below; Figure 7 A schematic diagram of the second embodiment of the air quality detection equipment for environmental assessment of metal smelting provided by this utility model; Figure 8 for Figure 7 The diagram shows a cross-sectional view of the back of the mounting assembly. Figure 9 for Figure 7 The enlarged schematic diagram of section C is shown below; Figure 10 for Figure 7 The diagram shows the installation structure of an air quality monitoring device for environmental assessment in metal smelting.

[0016] Numbered components in the diagram: 1. Housing; 2. Detector; 21. Sensor probe; 22. Signal processing circuit; 23. Microprocessor; 24. Display module; 3. Exhaust assembly; 31. Ventilation duct; 32. Fan; 33. First air duct; 34. Second air duct; 4. Diverter assembly; 41. Diverter box; 42. Diverter plate; 5. Drive assembly; 51. Drive motor; 52. Active conical wheel; 53. Driven conical wheel; 54. Transmission rod; 6. Filter assembly; 61. Ventilation hood; 62. Filter screen; 63. Third air duct; 7. Cleaning assembly; 71. Rotating plate; 72. Cleaning brush; 8. Mounting assembly; 81. Mounting frame; 82. Snap-fit ​​groove; 83. Snap-fit ​​plate; 84. Moving plate; 85. Anti-slip pad; 9. Transmission assembly; 91. Rotating rod; 92. Worm gear; 93. Worm wheel; 94. Threaded rod; 95. Base. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] First Embodiment

[0019] Please refer to the following: Figures 1 to 2 In the first embodiment of this utility model, the air quality detection device for environmental assessment in metal smelting includes: Box 1; Drive assembly 5, the drive assembly 5 includes drive motor 51, the drive motor 51 is suspended inside the housing 1; The diversion assembly 4 includes a diversion box 41 and a diversion plate 42. The diversion plate 42 divides the diversion box 41 into two cavities. The drive shaft of the drive motor 51 passes through the diversion box 41 and is connected to the diversion plate 42. The detector 2 is installed inside the housing 1, and a sensor probe 21 is fixedly installed at the monitoring end of the detector 2. The air extraction assembly 3 includes a ventilation pipe 31, a fan 32, a first air pipe 33, and a second air pipe 34. The ventilation pipe 31 is installed on the top of the sensor probe 21. The fan 32 and the second air pipe 34 are respectively provided at both ends of the ventilation pipe 31. The second air pipe 34 is connected to the diversion box 41. The first air pipe 33 connects the fan 32 and the diversion box 41. Two filter components 6 are respectively disposed on both sides of the housing 1. Each filter component 6 includes a ventilation hood 61, a filter screen 62, and a third air pipe 63. The ventilation hood 61 is embedded in the housing 1, the filter screen 62 is fixedly installed at the opening of the ventilation hood 61, and the third air pipe 63 connects the ventilation hood 61 and the diversion box 41.

[0020] In this embodiment, the detector 2 and sensor probe 21 are used to detect toxic gases. The surface of the sensor probe 21 is coated with a prior art material that is sensitive to toxic gases. After the material reacts with the toxic gases, its conductivity changes. The detector 2 detects the change in conductivity to monitor the air quality in the metal smelting environment in real time.

[0021] The distribution box 41 is circular.

[0022] Please refer to the following: Figure 3 (a) and Figure 3 (b) When the diverter plate 42 is in a vertical state, the fan 32 starts and the external gas passes through the left ventilation hood 61, the left third air pipe 63, the diverter box 41 and the first air pipe 33 in sequence and is drawn into the ventilation pipe 31, so that the gas flows over the surface of the sensor probe 21. At this time, the sensor probe 21 detects the toxic gas in the gas. When the gas enters the left ventilation hood 61, the filter screen 62 blocks the dust in the air and prevents it from entering the interior of the left ventilation hood 61.

[0023] Then, the gas is discharged outside the box 1 through the second air pipe 34, the diversion box 41, the third air pipe 63 on the right side, the ventilation hood 61 on the right side and the ventilation hood 61 on the right side.

[0024] Please refer to the following: Figure 3 (c) and Figure 3(d) When the drive motor 51 drives the diverter plate 42 to rotate to a horizontal state through the drive shaft, the external gas enters the ventilation pipe 31 through the right ventilation hood 61, the right third air pipe 63, the diverter box 41, the first air pipe 33 and the fan 32. The detected gas is discharged through the second air pipe 34, the diverter box 41, the left third air pipe 63 and the left ventilation hood 61.

[0025] At this time, the blown air can blow away the dust adsorbed on the filter screen 62 inside the left ventilation hood 61, thus cleaning the filter screen 62 from the left side.

[0026] This cycle repeats, with the drive motor 51 rotating once every so often, causing the ventilation hoods 61 on the left and right sides to alternately draw in and blow out air. This avoids prolonged air extraction by a single ventilation hood 61, which would lead to excessive dust accumulation on its surface filter screen 62, thus ensuring the ventilation effect of the filter screen 62 and the normal operation of the testing equipment.

[0027] Through the coordinated structure of ventilation duct 31, fan 32, first air duct 33, second air duct 34, diversion component 4, drive component 5, and filter component 6, the ventilation hoods 61 on the left and right sides work alternately during use. In conjunction with the filter screen 62, it can continuously collect air samples for testing, and automatically clean the filter screen 62 by airflow when the ventilation hoods 61 switch working states. This avoids the problem of the filter screen 62 being blocked by dust accumulation, which affects the ventilation volume and detection accuracy, and improves the detection accuracy of the testing equipment. In addition, this automatic cleaning design of the filter screen 62 reduces the frequency of manual cleaning of the filter screen 62 by the staff, reducing the labor intensity and maintenance costs of the staff.

[0028] Please see Figure 4 In a preferred embodiment, the detector 2 includes a signal processing circuit 22, a microprocessor 23, and a display module 24. The sensor probe 21 is coated with a material sensitive to CO and SO2 toxic gases. Common materials include metal oxide semiconductor materials (such as tin dioxide, zinc oxide, indium oxide In2O3), electrochemically sensitive materials based on noble metal catalysts (such as platinum Pt), and some organic polymer materials containing specific functional groups.

[0029] When a gas sample from a metal smelting environment flows through sensor probe 21, the sensitive material will react specifically with CO and SO2 gases.

[0030] Taking metal oxide semiconductor materials as an example, the oxygen adsorbed on their surface will undergo redox reactions with gases. CO will react with oxygen ions on the surface to generate CO2 and release electrons. SO2 will react with oxygen ions on the surface to generate sulfate ions. These reactions all change the conductivity of the material.

[0031] In the electrochemical system based on noble metal catalysts, CO undergoes an oxidation reaction on the surface of the working electrode to generate current; while organic polymer materials undergo chemical reactions with SO2, resulting in changes in electrical properties; through these reactions, the sensor probe 21 converts the presence and concentration information of the gas into measurable changes in electrical signals.

[0032] The electrical signal generated by the sensor probe 21 is transmitted to the signal processing circuit 22 of the detector 2. After processing the electrical signal, the signal processing circuit 22 transmits it to the microprocessor 23. The microprocessor 23 converts the electrical signal into the corresponding gas concentration value. Finally, the microprocessor 23 transmits the processed gas concentration data to the display module 24. The real-time concentration values ​​of CO and SO2 toxic gases are displayed on the display module 24 of the detector 2 in an intuitive numerical or graphical form, so that the staff can grasp the air quality status in the metal smelting environment in a timely and accurate manner.

[0033] Please refer to the following: Figure 1 , Figure 5 and Figure 6 The drive assembly 5 further includes a driving conical wheel 52, two driven conical wheels 53, and two transmission rods 54. The drive motor 51 is fixedly installed on the top of the housing 1. The driving conical wheel 52 is fixedly installed on the drive shaft. The two driven conical wheels 53 are respectively engaged with the two sides of the driving conical wheel 52. The transmission rods 54 are arranged one-to-one with the driven conical wheels 53, and one end of the transmission rod 54 is connected to the driven conical wheel 53. The air quality detection equipment for environmental assessment of metal smelting also includes two cleaning components 7, which are configured in a one-to-one correspondence with the filter components 6. The cleaning assembly 7 includes a rotating plate 71 and a cleaning brush 72. The other end of the transmission rod 54 passes through the ventilation hood 61 and the filter screen 62 in sequence and is connected to the rotating plate 71. The cleaning brush 72 is fixedly installed on the rotating plate 71 and is fitted to the filter screen 62.

[0034] When the drive motor 51 drives the drive shaft to rotate, thereby adjusting the state of the diverter plate 42, the drive shaft will synchronously drive the active conical wheel 52 to rotate, thereby driving the driven conical wheel 53 to rotate. When the driven conical wheel 53 rotates, it will drive the rotating plate 71 to rotate through the transmission rod 54, thereby driving the cleaning brush 72 to clean the dust on the side of the filter screen 62, thereby making the dust on the filter screen 62 loose, so that it can be blown off by the airflow later. In a preferred embodiment, the gear ratio between the driving conical wheel 52 and the driven conical wheel 53 is 1:3, so that when the driving conical wheel 52 rotates once, it can drive the driven conical wheel 53 to rotate three times.

[0035] Second Embodiment

[0036] Please refer to the following: Figure 7 and Figure 10 Based on the first embodiment of this application, which provides an air quality detection device for environmental assessment in metal smelting, the second embodiment of this application proposes another air quality detection device for environmental assessment in metal smelting. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0037] Specifically, the second embodiment of this application provides an air quality detection device for environmental assessment of metal smelting, which differs in that the air quality detection device for environmental assessment of metal smelting further includes an installation component 8 and a transmission component 9. The installation component 8 is disposed on the back of the housing 1, and the transmission component 9 is used to drive the installation component 8 to unfold so as to be installed on the channel steel column.

[0038] Please refer to the following: Figure 8 and Figure 9 The mounting assembly 8 includes a mounting frame 81 and two movable plates 84; The mounting frame 81 is disposed on the back of the housing 1, and the two movable plates 84 are respectively slidably inserted into the two sides of the mounting frame 81; The transmission assembly 9 includes a rotating rod 91, a worm gear 92, a worm wheel 93, two threaded rods 94, and two bases 95; The movable plate 84, the base 95, and the threaded rod 94 are arranged in a one-to-one correspondence; the two bases 95 are spaced apart in the mounting frame 81, the threaded rod 94 is rotatably mounted on the base 95, the two threaded rods 94 are respectively fixedly mounted on both sides of the worm gear 93, one threaded rod 94 is threadedly connected to the interior of the corresponding movable plate 84, and the threads of the two threaded rods 94 are opposite in direction; One end of the rotating rod 91 extends through the mounting frame 81 and is rotatably connected to the mounting frame 81. The worm gear 92 is mounted on the rotating rod 91, and the worm wheel 93 meshes with the worm gear 92.

[0039] By cooperating with each other, the mounting frame 81 can be easily fixed and disassembled by simply rotating the rotating rod 91 using the worm gear 93, worm 92 and thread transmission principle. The operation is simple and quick, which improves the installation efficiency.

[0040] By utilizing the self-locking property between the worm gear 92 and the worm wheel 93, the movement of the movable plate 84 can be prevented after it has been adjusted to the appropriate position.

[0041] The mounting assembly 8 further includes a snap-fit ​​groove 82 and a snap-fit ​​plate 83. The snap-fit ​​groove 82 is formed in the mounting frame 81, and the snap-fit ​​plate 83 is snapped into the snap-fit ​​groove 82 and fixedly mounted on the back of the housing 1.

[0042] The snap-fitting of the snap-fit ​​plate 83 and the snap-fit ​​groove 82 allows users to disassemble the housing 1 without removing the mounting frame 81, so that staff can maintain the detector 2 inside the housing 1.

[0043] Please refer to the following: Figure 8 and Figure 10 The mounting assembly 8 also includes two anti-slip pads 85, which are provided in a one-to-one correspondence with the movable plate 84. The anti-slip pads 85 are fixedly installed on the end of the movable plate 84 away from the mounting frame 81.

[0044] When installing the mounting component 8, the user first places the mounting frame 81 on the inner side of the steel structure support. Then, the user rotates the rotating rod 91, which drives the worm gear 92 to rotate. When the worm gear 92 rotates, it simultaneously drives the worm wheel 93 and the threaded rod 94 to rotate, causing the threaded rod 94 to be threadedly connected inside the moving plate 84. This causes the two moving plates 84 to move to opposite ends, so that the anti-slip pads 85 installed on one side of the two moving plates 84 abut against the inner side of the steel structure support, thereby limiting the position of the mounting frame 81.

[0045] The user then places the housing 1 on the front of the mounting frame 81 and moves the snap-fit ​​plate 83 downward from the top of the snap-fit ​​groove 82, so that the snap-fit ​​plate 83 and the snap-fit ​​groove 82 snap together, thereby installing the housing 1.

[0046] By setting the anti-slip rubber pad 85, the friction between the anti-slip rubber pad 85 and the steel structure support can be increased during use, thereby increasing the stability of the installation between the mounting frame 81 and the steel structure support.

[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An air quality detection device for environmental assessment in metal smelting, characterized in that, include: Box; A drive assembly, the drive assembly including a drive motor, the drive motor being suspended inside the housing; The flow splitter assembly includes a flow splitter box and a flow splitter plate. The flow splitter plate divides the flow splitter box into two cavities. The drive shaft of the drive motor passes through the flow splitter box and is connected to the flow splitter plate. The detector is installed inside the housing, and a sensor probe is fixedly installed at the monitoring end of the detector. An air extraction assembly includes a ventilation pipe, a fan, a first air pipe, and a second air pipe. The ventilation pipe is installed on the top of the sensor probe. The fan and the second air pipe are respectively installed at both ends of the ventilation pipe. The second air pipe is connected to the diversion box, and the first air pipe connects the fan and the diversion box. Two filter components are respectively disposed on both sides of the housing. Each filter component includes a ventilation hood, a filter screen, and a third air pipe. The ventilation hood is embedded in the housing, the filter screen is fixedly installed at the opening of the ventilation hood, and the third air pipe connects the ventilation hood and the diversion box.

2. The air quality detection equipment for environmental assessment in metal smelting according to claim 1, characterized in that, The distribution box is circular.

3. The air quality detection equipment for environmental assessment in metal smelting according to claim 1, characterized in that, The drive assembly also includes a driving conical wheel, two driven conical wheels, and two transmission rods. The drive motor is fixedly mounted on the top of the housing. The driving conical wheel is fixedly mounted on the drive shaft. The two driven conical wheels are respectively engaged with the two sides of the driving conical wheel. The transmission rods are arranged one-to-one with the driven conical wheels, and one end of the transmission rod is connected to the driven conical wheel. The air quality detection equipment for environmental assessment of metal smelting also includes two cleaning components, which are configured in a one-to-one correspondence with the filter components. The cleaning assembly includes a rotating plate and a cleaning brush. The other end of the transmission rod passes through the ventilation hood and the filter screen in sequence and is connected to the rotating plate. The cleaning brush is fixedly installed on the rotating plate and is fitted to the filter screen.

4. The air quality detection equipment for environmental assessment in metal smelting according to claim 1, characterized in that, The air quality monitoring equipment for environmental assessment in metal smelting also includes an installation component and a transmission component. The installation component is located on the back of the housing, and the transmission component is used to drive the installation component to unfold for installation on the channel steel column.

5. The air quality detection equipment for environmental assessment in metal smelting according to claim 4, characterized in that, The mounting assembly includes a mounting frame and two movable plates; The mounting frame is located on the back of the housing, and the two movable plates are slidably inserted into both sides of the mounting frame; The transmission assembly includes a rotating rod, a worm gear, a worm wheel, two threaded rods, and two bases; The movable plate, the base, and the threaded rod are arranged in a one-to-one correspondence; two bases are spaced apart in the mounting frame, the threaded rod is rotatably mounted on the base, the two threaded rods are respectively fixedly mounted on both sides of the worm gear, one threaded rod is threadedly connected to the interior of the corresponding movable plate, and the threads of the two threaded rods are opposite in direction; One end of the rotating rod extends through the mounting frame and is rotatably connected to the mounting frame. The worm gear is mounted on the rotating rod, and the worm wheel meshes with the worm gear.

6. The air quality detection equipment for environmental assessment in metal smelting according to claim 5, characterized in that, The mounting assembly further includes a snap-fit ​​groove and a snap-fit ​​plate. The snap-fit ​​groove is formed in the mounting frame, the snap-fit ​​plate is snapped into the snap-fit ​​groove, and the snap-fit ​​plate is fixedly installed on the back of the housing.

7. The air quality detection equipment for environmental assessment in metal smelting according to claim 6, characterized in that, The mounting assembly also includes two anti-slip rubber pads, which are provided in a one-to-one correspondence with the movable plate. The anti-slip rubber pads are fixedly installed on the end of the movable plate away from the mounting frame.

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