Discharge monitoring device and water mist dust removal equipment

Abstract

The utility model relates to wet dust removal technical field discloses a kind of discharge monitoring device and water mist dust removal equipment.The discharge monitoring device includes first dust monitoring member and wind speed monitoring member, first dust monitoring member is set at the discharge port of water mist dust removal equipment, for monitoring the dust concentration of gas discharged from discharge port;Wind speed monitoring member is set at the discharge port, for monitoring the wind speed at discharge port.The discharge monitoring device can intuitively and accurately monitor whether the dust concentration in discharge gas meets the standard, improve the standard rate of gas discharge.

Description

Technical Field

[0001] This utility model belongs to the field of wet dust removal technology, and in particular relates to an emission monitoring device and a water mist dust removal equipment. Background Technology

[0002] Rotary kilns are indispensable heat treatment equipment in industries such as cement, metallurgy, and chemicals. During the drying process, materials are gradually dehydrated by the rotation of the rotary kiln and the heating of internal hot air, achieving the drying effect. However, this process generates a large amount of dust, which, if directly emitted into the atmosphere, will pollute the environment.

[0003] Currently, the industry commonly uses water mist dust collection towers and other water mist dust collection equipment to treat dust: after dust-laden gas enters the equipment, most dust particles settle to the bottom of the equipment through the water mist, while the clean gas is discharged into the atmosphere through the equipment outlet. However, in existing technologies, whether gas emissions meet relevant environmental standards mainly relies on adjusting the water mist emission rate for control. This makes it impossible for staff to intuitively and accurately obtain key indicators such as the actual pollutant concentration in the emitted gas, posing a potential risk of exceeding emission standards and affecting environmental compliance.

[0004] Therefore, there is an urgent need for an emission monitoring device and a water mist dust removal equipment to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an emission monitoring device and a water mist dust removal equipment, which can intuitively and accurately monitor whether the dust concentration in the emission gas meets the standards, thereby improving the compliance rate of gas emissions.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] On the one hand, an emission monitoring device is provided, comprising:

[0008] The first dust monitoring device is installed at the discharge port of the water mist dust removal equipment to monitor the dust concentration of the gas discharged from the discharge port.

[0009] A wind speed monitoring device is installed at the discharge outlet to monitor the wind speed at the discharge outlet.

[0010] Optionally, the emission monitoring device may also include a second dust monitoring element installed at the air inlet of the water mist dust removal equipment, the second dust monitoring element being used to monitor the dust concentration at the air inlet.

[0011] Optionally, the emission monitoring device may also include a weight monitoring element installed at the ash collection port of the water mist dust removal equipment, which is used to monitor the weight of dust particles discharged from the ash collection port.

[0012] Optionally, the emission monitoring device also includes a humidity monitoring element installed in the reaction space of the water mist dust removal equipment, which is used to monitor the humidity in the reaction space.

[0013] Optionally, the emission monitoring device also includes an alarm element, which is electrically connected to both the first dust monitoring element and the wind speed monitoring element, and is configured to issue an alarm when the dust concentration monitored by the first dust monitoring element exceeds a preset concentration and / or the wind speed monitored by the wind speed monitoring element exceeds a preset wind speed.

[0014] Optionally, the first dust monitoring device includes at least one of a laser monitor, an electrostatic dust meter, or a beta-ray dust meter.

[0015] On the other hand, a water mist dust removal device is provided, including a dust removal body and the aforementioned emission monitoring device, wherein the emission monitoring device is disposed in the dust removal body.

[0016] Optionally, the water mist dust removal equipment also includes a control module, which is electrically connected to the first dust monitoring device, the wind speed monitoring device, and the dust removal body. The control module is used to control the amount of water sprayed by the dust removal body based on the data monitored by the first dust monitoring device and the wind speed monitoring device.

[0017] Optionally, the dust collector body is provided with an exhaust port, an air inlet, a reaction space, an ash collection port, and a spraying component. The exhaust port is located at the top of the dust collector body and is connected to the reaction space. The air inlet and the ash collection port are both located at the bottom of the dust collector body and are both connected to the reaction space. The spraying component is located in the reaction space and is configured to spray water mist.

[0018] Optionally, the water mist dust removal equipment also includes a filter element, which is disposed within the reaction space and configured to filter the gas entering the reaction space.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This invention provides an emission monitoring device and a water mist dust removal equipment. The first dust monitoring element can monitor the dust concentration of the exhaust gas in real time. Workers can intuitively and accurately understand whether the gas discharged from the water mist dust removal equipment meets emission standards through the results monitored by the first dust monitoring element, thereby improving the compliance rate of gas emissions. By combining the monitoring of the wind speed monitoring element with the first dust monitoring element, the influence of wind speed on the spatial distribution of dust concentration in the exhaust gas can be effectively reduced, thus more accurately calculating the diffusion range and concentration distribution of dust in the exhaust gas, providing accurate scientific basis for assessing whether emissions meet standards. Attached Figure Description

[0021] Figure 1 A cross-sectional schematic diagram of the water mist dust removal equipment provided by this utility model.

[0022] in:

[0023] 110. First dust monitoring device; 120. Wind speed monitoring device; 130. Second dust monitoring device; 140. Weight monitoring device; 150. Humidity monitoring device; 160. Alarm device;

[0024] 200. Dust removal unit; 210. Discharge port; 220. Air inlet; 230. Ash collection port; 240. Reaction space; 250. Spraying component; 260. Filter component; 270. Control module. Detailed Implementation

[0025] It should be understood that in the description of this utility model, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0026] It should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] Example 1

[0029] like Figure 1 As shown, this embodiment provides an emission monitoring device that can intuitively and accurately monitor whether the dust concentration in the emitted gas meets the standards, thereby improving the compliance rate of gas emissions.

[0030] See Figure 1 The emission monitoring device includes a first dust monitoring element 110 and a wind speed monitoring element 120. The first dust monitoring element 110 is installed at the emission port 210 of the water mist dust removal equipment and is used to monitor the dust concentration of the gas discharged from the emission port 210. The wind speed monitoring element 120 is installed at the emission port 210 and is used to monitor the wind speed at the emission port 210.

[0031] The emission monitoring device provided in this embodiment includes a first dust monitoring element 110 that can monitor the dust concentration of the exhaust gas in real time. Operators can intuitively and accurately understand whether the gas discharged from the water mist dust removal equipment meets emission standards through the results monitored by the first dust monitoring element 110, thereby improving the compliance rate of gas emissions. By combining the monitoring of the wind speed monitoring element 120 with the first dust monitoring element 110, the influence of wind speed on the spatial distribution of dust concentration in the exhaust gas can be effectively reduced, thus more accurately calculating the diffusion range and concentration distribution of dust in the exhaust gas, providing accurate scientific basis for assessing whether emissions meet standards.

[0032] For example, the wind speed monitoring device 120 uses an anemometer.

[0033] In this embodiment, the data monitored by the first dust monitoring element 110 includes, but is not limited to, particulate matter concentration, sulfur dioxide concentration, and nitrogen oxide concentration. Particulate matter is one of the main pollutants generated during the rotary kiln drying process, including dust and soot, and its concentration directly reflects the dust removal effect of the dust removal equipment. If the material dried in the rotary kiln contains sulfur, the sulfur dioxide produced during combustion is harmful to the atmospheric environment and human health, so the concentration of sulfur dioxide needs to be monitored. Nitrogen oxides are another harmful gas produced during combustion, which has adverse effects on the atmospheric environment and human health, so they also need to be monitored.

[0034] In this embodiment, the first dust monitoring device 110 includes at least one of a laser monitor, an electrostatic dust meter, and / or a beta-ray dust meter. Laser dust meters offer high accuracy, enabling real-time monitoring of dust concentration and supporting the monitoring of multiple particle sizes; electrostatic dust meters are simple in structure, easy to maintain, and adaptable to harsh environments, but their accuracy is relatively low; beta-ray dust meters offer the highest accuracy, but the equipment is complex and requires periodic replacement of the radiation source, resulting in higher costs.

[0035] Example 2

[0036] like Figure 1 As shown, this embodiment provides a water mist dust removal device, including a dust removal body 200 and an emission monitoring device as described in Embodiment 1, wherein the emission monitoring device is disposed in the dust removal body 200.

[0037] For example, the water mist dust removal equipment in this embodiment uses a water mist dust removal tower.

[0038] In this embodiment, see Figure 1The dust collector 200 is configured to remove dust from the gas. Specifically, the dust collector 200 is equipped with an exhaust port 210, an air inlet 220, a reaction space 240, a dust collection port 230, and a spray nozzle 250. The exhaust port 210 is located at the top of the dust collector 200 and communicates with the reaction space 240. The air inlet 220 and the dust collection port 230 are both located at the bottom of the dust collector 200 and communicate with the reaction space 240. The spray nozzle 250 is located inside the reaction space 240 and is configured to spray water mist. The dust-laden gas enters the reaction space 240 through the air inlet 220 and floats up inside the reaction space 240. The spray nozzle 250 sprays water mist onto the gas. The dust in the gas agglomerates under the action of the water mist and falls to the dust collection port 230. The clean gas can float up and be discharged through the exhaust port 210, thus completing the removal of dust from the gas.

[0039] Specifically, see Figure 1 The water mist dust removal equipment also includes a filter element 260, which is disposed in the reaction space 240 and configured to filter the gas entering the reaction space 240, so as to block some dust from rising with the gas during the gas rising process, thereby further improving the dust removal effect and reducing the impact of dust on the environment.

[0040] For example, filter element 260 uses a filter screen.

[0041] In this embodiment, see Figure 1 The water mist dust removal equipment also includes a control module 270, which is electrically connected to the first dust monitoring device 110, the wind speed monitoring device 120, and the dust removal body 200. The control module 270 is used to control the water spray volume of the dust removal body 200 based on the data monitored by the first dust monitoring device 110 and the wind speed monitoring device 120, thereby achieving the purpose of linkage between the emission monitoring device and the dust removal process, improving the degree of automation of dust removal, and also providing a basis for the optimization of water mist dust removal equipment parameters.

[0042] Optionally, see Figure 1 The emission monitoring device in Embodiment 1 also includes a second dust monitoring element 130 installed at the air inlet 220 of the water mist dust removal equipment. The second dust monitoring element 130 is used to monitor the dust concentration at the air inlet 220. The gas discharged from the rotary kiln enters the water mist dust removal equipment through the air inlet 220 for dust removal. The second dust monitoring element 130 can monitor the dust concentration of the dust-laden gas, while the first dust monitoring element 110 monitors the dust concentration of the clean gas. By comparing the dust concentration of the gas before and after dust removal, the dust removal efficiency of the dust removal body 200 can be directly reflected. Moreover, when the first dust monitoring element 110 detects that the dust concentration at the emission outlet 210 exceeds the standard, the monitoring data from the second dust monitoring element 130 can quickly narrow down the scope of the fault in the dust removal body 200 and reduce the troubleshooting cost.

[0043] Specifically, when the first dust monitoring device 110 detects that the dust concentration at the emission port 210 exceeds the standard, if the dust concentration detected by the second dust monitoring device 130 rises sharply, it indicates that the upstream pollution source input of the water mist dust removal equipment is abnormal (such as a sudden increase in air intake or an initial dust concentration exceeding the standard), rather than a malfunction of the water mist dust removal equipment itself. If the dust concentration detected by the second dust monitoring device 130 is stable, and only the dust concentration detected by the first dust monitoring device 110 exceeds the standard, the focus can be placed on the inside of the water mist dust removal equipment, effectively avoiding blind maintenance.

[0044] For example, the second dust monitoring device 130 is a laser dust meter, an electrostatic dust meter, or a beta-ray dust meter.

[0045] Optionally, see Figure 1 The emission monitoring device also includes a weight monitoring element 140 installed at the dust collection port 230 of the water mist dust collector. The weight monitoring element 140 monitors the weight of dust particles discharged from the dust collection port 230. Dust particles that settle to the bottom of the water mist dust collector after being treated by the water mist can be discharged through the dust collection port 230. The weight monitored by the weight monitoring element 140 indicates the amount of dust treated by the water mist, thus obtaining the amount of dust discharged with the air, providing an accurate scientific basis for determining whether the exhaust gas meets standards. Furthermore, the data monitored by the weight monitoring element 140 can accurately determine the operating status of the water mist dust collector, improving user convenience.

[0046] Specifically, when the water mist dust removal equipment is operating normally, the weight of the dust near the dust accumulation port 230 monitored by the weight monitoring component 140 increases uniformly over time, and the accumulation rate is stable. When the water mist dust removal equipment is clogged, such as when the filter component 260 is clogged, the dust settling speed slows down, and the dust weight increase rate monitored by the weight monitoring component 140 will be lower than the normal rate.

[0047] For example, the weight monitoring component 140 uses a load cell. The load cell is highly accurate and can output weight data in real time, supporting linkage with the control system of the water mist dust removal equipment; the load cell is also small in size, does not occupy extra space, and fits the "compact structure" design of some water mist dust removal equipment.

[0048] Optionally, see Figure 1The emission monitoring device also includes a humidity monitoring element 150 installed within the reaction space 240 of the water mist dust removal equipment. The humidity monitoring element 150 monitors the humidity within the reaction space 240. Based on the humidity measured by the humidity monitoring element 150, the dust concentration data measured by the first dust monitoring element 110 can be corrected, further improving the accuracy of the monitoring results. Furthermore, high humidity environments can easily lead to corrosion of components in the water mist dust removal equipment or cause severe dust agglomeration at the ash collection port 230, making it difficult to discharge. By monitoring humidity in real time, early warnings of severe high humidity conditions can be issued, allowing for timely protective measures (such as installing dehumidifiers) to prevent equipment damage due to environmental factors.

[0049] Specifically, the gas discharged from the rotary kiln undergoes dust removal in the reaction space 240. The humidity within the reaction space 240 affects the adhesion and conductivity of the dust particles. High-humidity dust easily adheres to the dust collector body 200, causing signal attenuation of the first dust monitoring element 110. By combining this with the humidity data measured by the humidity monitoring element 150, it can be determined whether the abnormal monitoring data of the first dust monitoring element 110 is caused by moisture, allowing staff to adjust the operating parameters of the water mist dust removal equipment in a timely manner.

[0050] For example, the humidity monitoring device 150 employs a dustproof humidity sensor.

[0051] Optionally, see Figure 1 The emission monitoring device also includes an alarm element 160, which is electrically connected to the first dust monitoring element 110 and the wind speed monitoring element 120. The alarm element 160 is configured to issue an alarm when the dust concentration monitored by the first dust monitoring element 110 exceeds a preset concentration and / or the wind speed monitored by the wind speed monitoring element 120 exceeds the wind speed, so as to promptly remind the staff to check the water mist dust removal equipment.

[0052] The preset concentration is the dust concentration of the gas when it meets the emission standards. The preset wind speed is determined according to the specific situation. As long as the dust concentration is not affected by the spatial distribution when the gas is discharged within the preset wind speed range, it is acceptable.

[0053] For example, alarm element 160 uses a buzzer.

[0054] In this embodiment, the emission monitoring device further includes a second dust monitoring element 130, a weight monitoring element 140, and a humidity monitoring element 150. The alarm element 160 is electrically connected to the second dust monitoring element 130, the weight monitoring element 140, and the humidity monitoring element 150. When the data monitored by the second dust monitoring element 130, the weight monitoring element 140, and the humidity monitoring element 150 exceed the normal threshold, the alarm element 160 can also issue an alarm.

[0055] In some embodiments, the second dust monitoring element 130, the weight monitoring element 140, and the humidity monitoring element 150 are all electrically connected to the control module 270 of the water mist dust removal equipment. When the alarm element 160 alarms, the control module 270 can adjust the operating status of the dust removal body 200 in a timely manner, making the operation convenient and quick and improving the automation level of the dust removal operation.

[0056] The above description is only a specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model fall within the protection and disclosure scope of the present utility model.

Claims

1. An emissions monitoring device, characterized in that, include: The first dust monitoring device (110) is installed at the discharge port (210) of the water mist dust removal equipment and is used to monitor the dust concentration of the gas discharged from the discharge port (210); A wind speed monitoring device (120) is installed at the discharge port (210) to monitor the wind speed at the discharge port (210).

2. The emission monitoring device according to claim 1, characterized in that, The emission monitoring device further includes a second dust monitoring element (130) installed at the air inlet (220) of the water mist dust removal equipment. The second dust monitoring element (130) is used to monitor the dust concentration at the air inlet (220).

3. The emissions monitoring apparatus of claim 1, wherein, The emission monitoring device also includes a weight monitoring element (140) installed at the dust collection port (230) of the water mist dust removal equipment, the weight monitoring element (140) being used to monitor the weight of dust particles discharged from the dust collection port (230).

4. The emissions monitoring apparatus of claim 1, wherein, The emission monitoring device also includes a humidity monitoring element (150) disposed in the reaction space (240) of the water mist dust removal equipment, the humidity monitoring element (150) being used to monitor the humidity in the reaction space (240).

5. An emissions monitoring device according to any one of claims 1 to 4, wherein, The emission monitoring device further includes an alarm element (160), which is electrically connected to both the first dust monitoring element (110) and the wind speed monitoring element (120), and is configured to issue an alarm when the dust concentration monitored by the first dust monitoring element (110) exceeds a preset concentration and / or the wind speed monitored by the wind speed monitoring element (120) exceeds a preset wind speed.

6. An emissions monitoring device according to any one of claims 1 to 4, wherein, The first dust monitoring device (110) includes at least one of a laser monitor, an electrostatic dust meter, and / or a beta-ray dust meter.

7. Water mist dust suppression apparatus, characterised in that It includes a dust removal body (200) and an emission monitoring device as described in any one of claims 1-6, wherein the emission monitoring device is disposed in the dust removal body (200).

8. The water mist dust suppression apparatus of claim 7, wherein, The water mist dust removal device also includes a control module (270), which is electrically connected to the first dust monitoring device (110), the wind speed monitoring device (120), and the dust removal body (200). The control module (270) is used to control the water spray volume of the dust removal body (200) based on the data monitored by the first dust monitoring device (110) and the wind speed monitoring device (120).

9. The water mist dust suppression apparatus of claim 7, wherein, The dust removal body (200) is provided with an exhaust port (210), an air inlet (220), a reaction space (240), an ash collection port (230), and a spraying component (250). The exhaust port (210) is located at the top of the dust removal body (200) and communicates with the reaction space (240). The air inlet (220) and the ash collection port (230) are both located at the bottom of the dust removal body (200) and communicate with the reaction space (240). The spraying component (250) is located in the reaction space (240) and is configured to spray water mist.

10. The water mist dust suppression apparatus of claim 9, wherein, The water mist dust removal device also includes a filter element (260), which is disposed in the reaction space (240) and configured to filter the gas entering the reaction space (240).

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