CN113082899A - Dust removal method and dust removal system with automatic cleaning function - Google Patents
Dust removal method and dust removal system with automatic cleaning function Download PDFInfo
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- CN113082899A CN113082899A CN202010019390.2A CN202010019390A CN113082899A CN 113082899 A CN113082899 A CN 113082899A CN 202010019390 A CN202010019390 A CN 202010019390A CN 113082899 A CN113082899 A CN 113082899A
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
Abstract
The invention relates to the technical field of dust removal and environmental protection, and provides a dust removal method and a dust removal system with an automatic cleaning function; the dust removal method with the automatic cleaning function comprises the following operation steps of: acquiring a material signal on a conveying belt; collecting the parameters of dust concentration and particle diameter, and comparing the parameters with corresponding threshold values respectively; automatically adjusting the upper output values of water pressure and air pressure according to the concentration of the dust and the diameter parameters of the particles; starting a two-phase nozzle of the spraying module to perform dust settling work; when the concentration of the dust is judged to be smaller than the set value, the spraying module stops working after delaying for a certain time; the invention effectively solves the problem that the prior spray dust removal device can not automatically adjust the corresponding atomization strength according to the actual dust strength, so that the dust fall effect is poor due to relatively small atomization amount.
Description
Technical Field
The invention relates to the technical field of dust removal and environmental protection, in particular to a dust removal method and a dust removal system with an automatic cleaning function.
Background
In the working environment of industrial and mining enterprises, dust with excessive concentration is often accompanied, and the following hazards can be brought: the health of workers is affected, dust explosion is easy to occur, and the atmospheric environment is polluted. Therefore, the dust concentration in the severe working environment needs to be monitored in real time, and corresponding dust removal measures need to be taken. The spray dust removal technology is commonly used in industrial and mining enterprises, and the principle is as follows: when the particle size of the spray droplets is close to that of dust, the dust can be effectively settled, water is atomized by the atomizing device to form a plurality of fine water droplets moving at high speed to combine and adhere the coal dust particles in the air, and the fine water droplets are continuously gathered and reduced under the action of the surface tension of the water to achieve the effects of dust fall and air filtration.
Dust generated by blanking and unloading materials in the work of industrial and mining enterprises is one of the main pollution sources of rice flour, for example: in a coal conveying system of a thermal power plant, the strength of dust generation is different due to the existence of factors such as rotary section drop, conveying speed of a conveying belt and the like. The spray dust removal device in the prior art cannot automatically adjust the corresponding atomization strength according to the actual dust strength, so that the problem of poor dust settling effect can occur due to relatively small atomization amount; the unanimous great atomizing volume that keeps not only can lead to the energy extravagant, then can influence the later stage of material and use.
Disclosure of Invention
Solves the technical problem
Aiming at the defects of the prior art, the invention provides a dust removal method and a dust removal system with an automatic cleaning function, which solve the problem that the dust removal effect is poor due to the fact that a spray dust removal device in the prior art cannot automatically adjust the corresponding atomization strength according to the actual dust strength.
Technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
the invention provides a dust removal method with an automatic cleaning function, which comprises the following operation steps: acquiring a material signal on a conveying belt; collecting the parameters of dust concentration and particle diameter, and comparing the parameters with corresponding threshold values respectively; automatically adjusting the upper output values of water pressure and air pressure according to the concentration of the dust and the diameter parameters of the particles; starting a two-phase nozzle of the spraying module to perform dust settling work; and when the concentration of the dust is judged to be less than the set value, the spraying module stops working after delaying for a certain time.
The invention provides a dust removal system with an automatic cleaning function, which comprises a detection module, a control and regulation module, a water and gas treatment module and a spraying module, wherein the detection module uploads a detection signal to the control and regulation module, the control and regulation module is used for regulating the water pressure and the air pressure of the water and gas treatment module and controlling the starting and stopping of the spraying module, and the water and gas treatment module is the spraying module.
Furthermore, after the diameter of the dust particles is compared with a threshold value, the diameter of the dust particles is matched to a corresponding diameter interval; and selecting the diameter of the atomized water drops of the two-phase nozzle according to the diameter interval.
Further, the step of matching the dust particles to different diameter intervals comprises: classifying, collecting and counting the dust particles; judging whether the particle diameter ratio of a certain interval is greater than or equal to 75 percent; if the diameter interval exists, the diameter interval with the ratio of more than or equal to 75 percent is taken as a final execution interval; otherwise, the diameter interval where the dust particles with the largest diameter are located is taken as a final execution area.
Furthermore, the diameter ranges are three ranges with particle diameters of 0-10 μm, 10-20 μm and more than 20 μm, and the diameters of the water mist particles in the three ranges are 5-8 μm, 8-10 μm and 10-14 μm respectively.
Furthermore, after the dust concentration value is compared with a threshold value, the dust concentration value is matched to a corresponding concentration interval; and automatically selecting the atomization intensity of the two-phase nozzle according to the concentration interval.
Furthermore, the step of matching the dust concentration value to different concentration intervals comprises the following steps: classifying, collecting and calculating the dust particles; and calculating to obtain an actual concentration value as a final execution interval.
Furthermore, the concentration interval is 6-8 mg/m3，8～10mg/m3And > 10mg/m3(ii) a The three concentration intervals respectively correspond to different intensity intervals with gradually increased atomized water amount.
Furthermore, after the material signal on the conveying belt is obtained, the control unit of the spraying module is started in a simulation mode, failure alarm is started in a simulation mode, and material conveying is stopped.
Furthermore, the detection module comprises a laser detector and an ultrasonic sensor, the ultrasonic sensor is used for material signals on the conveying belt, the laser detector can obtain concentration values and particle diameters of dust in real time, the control and adjustment module mainly comprises a PLC and a frequency converter, and different output signals output by the PLC are matched with the adjustment of the frequency converter to process the operation of the final execution interval.
Advantageous effects
The invention provides a dust removal method and a dust removal system with an automatic cleaning function, and compared with the prior art, the dust removal method and the dust removal system have the following beneficial effects:
1. according to the dust-settling device, the concentration value and the particle diameter of dust are detected in real time, the water-gas treatment module is regulated and controlled by the control regulation module, the water pressure and the air pressure are regulated, so that the particle size of atomized liquid emitted by the spray module is adaptive to the particle diameter of the dust, the atomization amount and the atomization strength are adaptive to the concentration value of the dust, dust settling operation is effectively carried out, the dust-settling efficiency of industrial and mining enterprises can be effectively improved, the atomization strength which is tracked and regulated in real time is more reasonable, energy waste is reduced, and the influence of atomization treatment on materials is reduced.
2. Meanwhile, the invention combines the detection of the material conveying signal and the simulation starting design of the spraying module, the simulation starting not only improves the response efficiency of the dust removing system, but also can detect whether the dust removing system has faults such as valve body failure or the like in advance, and ensures the stable execution of the dust removing operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic flow diagram of a dedusting method of the present invention;
FIG. 2 is a flow chart of the process for collecting the parameters of dust concentration and particle diameter;
FIG. 3 is a schematic diagram of a dedusting system frame of the present invention;
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
the embodiment of the present invention provides a dust removing method with an automatic cleaning function, and referring to fig. 1 to 2: comprises the following steps:
step 101: acquiring a material signal on a conveying belt;
step 102: collecting the parameters of dust concentration and particle diameter, and comparing the parameters with corresponding threshold values respectively;
step 103: automatically adjusting the upper output values of water pressure and air pressure according to the concentration of dust and the diameter parameters of particles;
step 104: starting a two-phase nozzle of the spraying module 204 to perform dust falling work;
step 105: when the concentration of the dust is judged to be smaller than the set value, the spraying module 204 stops working after delaying for a certain time, the delay time is preferably 5s, and the delay time can be adjusted according to the actual situation. (wherein the concentration is less than the set value of 6mg/m3And meets the dust concentration requirement of the factory building specified by the state).
After comparing the diameter of the dust particles with a threshold value, matching the diameter of the dust particles to a corresponding diameter interval; the diameter of the atomized water drops of the two-phase nozzle is selected according to the diameter interval.
The steps of matching the dust particles to different diameter intervals are as follows: classifying, collecting and counting dust particles; judging whether the particle diameter ratio of a certain interval is greater than or equal to 75 percent; if the diameter interval exists, the diameter interval with the ratio of more than or equal to 75 percent is taken as a final execution interval; otherwise, the diameter interval where the dust particles with the largest diameter are located is taken as a final execution area.
Wherein the diameter ranges are three ranges with particle diameters of 0-10 μm, 10-20 μm and more than 20 μm, and the diameters of the water mist particles in the three ranges are 5-8 μm, 8-10 μm and 10-14 μm respectively.
After comparing the dust concentration value with a threshold value, matching the dust concentration value to a corresponding concentration interval; the atomization strength of the two-phase nozzle is automatically selected according to the concentration interval.
The step of matching the dust concentration value to different concentration intervals comprises the following steps: classifying, collecting and calculating dust particles; and calculating to obtain an actual concentration value as a final execution interval.
The concentration interval is 6-8 mg/m3，8～10mg/m3And > 10mg/m3(ii) a The three concentration intervals respectively correspond to different intensity intervals with gradually increased atomized water amount.
After a material signal on the conveying belt is obtained, the control unit of the spraying module 204 is started in a simulation mode, a fault alarm is started in a simulation mode, and material conveying is stopped; the simulation starting not only improves the response efficiency of the dust removal system, but also can detect whether the dust removal system has faults such as valve body failure or not in advance, and ensures the stable execution of the dust removal operation.
The embodiment of the invention provides a dust removal system with an automatic cleaning function, and the dust removal system is characterized in that: the dust removal system comprises a detection module 201, a control and regulation module 202, a water and gas treatment module 203 and a spraying module 204, wherein the detection module 201 uploads a detection signal to the control and regulation module 202, the control and regulation module 202 is used for regulating the water pressure and the air pressure of the water and gas treatment module 203 and controlling the starting and stopping of the spraying module 204, and the water and gas treatment module 203 is the spraying module 204.
Wherein, the detection module 201 in this embodiment comprises a laser detector and an ultrasonic sensor, the ultrasonic sensor is used for material signals on the conveyer belt, the laser detector can obtain the concentration value and the particle diameter of dust in real time, when in use, the ultrasonic sensor and the laser detector are respectively arranged at the front end and the rear end of material conveying,
the control and adjustment module 202 mainly includes a PLC and a frequency converter, and processes the operation of the final execution interval by outputting different output signals through the PLC in cooperation with the adjustment of the frequency converter. When the spraying device is used, the diameter results of the three diameter intervals are respectively set to be three different output interfaces (for example, Q0.3-Q0.5, the PLC adopts S7200 series) of the PLC through a program, signals sent by the different output interfaces are sent to the frequency converter, the frequency converter controls the air compressor and the water pump of the water-gas treatment module 203, so that the water channel and the air channel of the water-gas treatment module 203 output gas and liquid with corresponding pressure values to enter the spraying module 204, wherein the spraying module 204 adopts a plurality of two-phase nozzles, and the spraying angle of the two-phase nozzles is preferably 120 degrees.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A dust removing method with an automatic cleaning function is characterized by comprising the following operation steps:
acquiring a material signal on a conveying belt;
collecting the parameters of dust concentration and particle diameter, and comparing the parameters with corresponding threshold values respectively;
automatically adjusting the upper output values of water pressure and air pressure according to the concentration of the dust and the diameter parameters of the particles;
starting a two-phase nozzle of the spraying module to perform dust settling work;
and when the concentration of the dust is judged to be less than a set value, the spraying module stops working after delaying for a certain time.
2. A dust removing method according to claim 1, wherein, after comparing the dust particle diameter with a threshold value,
matching the diameters of the dust particles to corresponding diameter intervals;
and selecting the diameter of the atomized water drops of the two-phase nozzle according to the diameter interval.
3. A dusting method according to claim 3, characterized in that the step of matching the dust particles to different diameter intervals is:
classifying, collecting and counting the dust particles;
judging whether the particle diameter ratio of a certain interval is greater than or equal to 75 percent;
if the diameter interval exists, the diameter interval with the ratio of more than or equal to 75 percent is taken as a final execution interval;
otherwise, the diameter interval where the dust particles with the largest diameter are located is taken as a final execution area.
4. A dust-removing method according to claim 2 or 3, wherein the diameter ranges are three ranges of 0 to 10 μm, 10 to 20 μm and > 20 μm in particle diameter, and the diameters of the water mist particles in the three ranges are 5 to 8 μm, 8 to 10 μm and 10 to 14 μm, respectively.
5. A dust removal method according to claim 1, wherein, after comparing the dust concentration value with a threshold value,
matching the dust concentration value to a corresponding concentration interval;
and automatically selecting the atomization intensity of the two-phase nozzle according to the concentration interval.
6. A dust removal method as claimed in claim 5, wherein the step of matching the dust concentration values to different concentration intervals is:
classifying, collecting and calculating the dust particles;
and calculating to obtain an actual concentration value as a final execution interval.
7. A dust removal method as claimed in claim 5 or 6, wherein the concentration range is 6-8 mg/m3，8～10mg/m3And > 10mg/m3(ii) a The three concentration intervals respectively correspond to different intensity intervals with gradually increased atomized water amount.
8. The dust removal method of claim 1, wherein after the material signal on the conveyor belt is obtained, the control unit of the spray module performs simulated start, simulated start failure alarm, and stops material conveyance.
9. The utility model provides an automatic clean dust pelletizing system of function which characterized in that, dust pelletizing system includes detection module, control adjustment module, aqueous vapor processing module and spraying module, detection module reaches with detected signal upload control adjustment module, control adjustment module is used for adjusting the size and the control of aqueous vapor processing module's water pressure, atmospheric pressure spraying module starts, stops, aqueous vapor processing module does spraying module.
10. The dust removal system of claim 9, wherein the detection module comprises a laser detector and an ultrasonic sensor, the ultrasonic sensor is used for material signals on the conveyor belt, the laser detector can obtain concentration values and particle diameters of dust in real time, the control and adjustment module mainly comprises a PLC and a frequency converter, and the PLC outputs different output signals to cooperate with the adjustment of the frequency converter to process operation in a final execution interval.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010019390.2A CN113082899A (en) | 2020-01-08 | 2020-01-08 | Dust removal method and dust removal system with automatic cleaning function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010019390.2A CN113082899A (en) | 2020-01-08 | 2020-01-08 | Dust removal method and dust removal system with automatic cleaning function |
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| CN202010019390.2A Pending CN113082899A (en) | 2020-01-08 | 2020-01-08 | Dust removal method and dust removal system with automatic cleaning function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113928878A (en) * | 2021-11-08 | 2022-01-14 | 北京牧之科技有限公司 | Intelligent cloud and mist spraying dust suppression system and method for train unloading warehouse |
| CN116020218A (en) * | 2023-02-03 | 2023-04-28 | 中铁十九局集团有限公司 | Engineering stone ecological environment comprehensive treatment system |
| CN117284817A (en) * | 2023-11-24 | 2023-12-26 | 张家港市华申工业橡塑制品有限公司 | Dust removing method and system for belt conveyor |
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| CN107349727A (en) * | 2017-08-30 | 2017-11-17 | 泰富重工制造有限公司 | A kind of smart spraying dust arrester and dust removal method |
| CN107986048A (en) * | 2017-11-28 | 2018-05-04 | 上海齐耀重工有限公司 | The intelligent dust collector of coal handling system |
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2020
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Patent Citations (4)
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| JPS5850425A (en) * | 1981-09-19 | 1983-03-24 | Oki Electric Ind Co Ltd | Method for measuring weight concentration of soot and dust |
| CN201128620Y (en) * | 2007-07-13 | 2008-10-08 | 刘福民 | Gas-water spray humidifying dust removing apparatus |
| CN107349727A (en) * | 2017-08-30 | 2017-11-17 | 泰富重工制造有限公司 | A kind of smart spraying dust arrester and dust removal method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113928878A (en) * | 2021-11-08 | 2022-01-14 | 北京牧之科技有限公司 | Intelligent cloud and mist spraying dust suppression system and method for train unloading warehouse |
| CN113928878B (en) * | 2021-11-08 | 2022-06-17 | 北京牧之科技有限公司 | Intelligent cloud and mist spraying dust suppression system and method for train unloading warehouse |
| CN116020218A (en) * | 2023-02-03 | 2023-04-28 | 中铁十九局集团有限公司 | Engineering stone ecological environment comprehensive treatment system |
| CN117284817A (en) * | 2023-11-24 | 2023-12-26 | 张家港市华申工业橡塑制品有限公司 | Dust removing method and system for belt conveyor |
| CN117284817B (en) * | 2023-11-24 | 2024-02-06 | 张家港市华申工业橡塑制品有限公司 | Dust removing method and system for belt conveyor |
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Application publication date: 20210709 |