CN113863988A - Coal mine large-range dust monitoring system and method - Google Patents
Coal mine large-range dust monitoring system and method Download PDFInfo
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- CN113863988A CN113863988A CN202111265529.2A CN202111265529A CN113863988A CN 113863988 A CN113863988 A CN 113863988A CN 202111265529 A CN202111265529 A CN 202111265529A CN 113863988 A CN113863988 A CN 113863988A
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Abstract
The invention relates to the technical field of dust monitoring, in particular to a coal mine large-range dust monitoring system and a coal mine large-range dust monitoring method, which comprise the following steps: a coal mining module; a first detection module; a first dust fall module; a transport module; a load-bearing housing module; a coal crushing module; a second detection module; a second dust settling module; a central processing module; an intelligent control module; an alarm module; the coal mining module includes: a coal mining machine for mining a coal mine; the transport module comprises: a conveyor belt for transporting coal; the load-bearing housing module includes: and the closed accommodating chamber is used for dust insulation and sound insulation. The coal crushing and dust falling device is provided with a coal mining module, a first detection module, a first dust falling module, a transportation module, a bearing and containing module, a coal crushing module, a second detection module, a second dust falling module, a central processing module, an intelligent control module and an alarm module. The intelligent dust-settling control system has the functions of large-range monitoring, automatic dust settling, intelligent control, efficient dust settling, remote alarm and the like.
Description
Technical Field
The invention relates to the technical field of dust monitoring, in particular to a coal mine large-range dust monitoring system and method.
Background
Coal mines are areas where humans mine coal resources in coal-rich mining areas, and are generally divided into underground coal mines and opencast coal mines. When the coal seam is far from the ground surface, a tunnel is usually dug to the underground, so that the coal is a mineworker coal mine. When the coal seam is very close to the earth surface, the coal is generally excavated by directly stripping the earth surface, which is an open pit coal mine. Coal mines encompass a large area above ground and below ground as well as associated facilities. Coal mines are reasonable spaces excavated by humans when excavating geological formations rich in coal and generally include roadways, wells, and mining surfaces, among others. Coal is the most predominant solid fuel, one of the flammable organic rocks.
Dust, refers to solid particles suspended in air. Dust is customarily given a number of names, such as dust, dirt, soot, mine dust, sand dust, powder, etc., without a distinct limitation. The international organization for standardization stipulates that dust is defined as a solid suspension having a particle size of less than 75 μm. The presence of dust in the atmosphere is one of the main causes for maintaining the earth's temperature, and too much or too little dust in the atmosphere can have a catastrophic effect on the environment. However, in life and work, productive dust is a natural enemy of human health and is a major cause of various diseases.
The dust monitoring is to measure dust particles generated in the production processes of mechanical crushing, screening, packaging, conveying and the like of materials, and the generated dust needs to be monitored in the coal mining and processing processes.
The dust monitoring system in the prior art can monitor dust in a smaller range, can only monitor the dust concentration in a local range, cannot monitor the large-scale dust from coal mining to coal crushing, does not have an intelligent control dust falling function, can only send out an alarm when the dust concentration exceeds the standard, and cannot quickly and effectively reduce the dust concentration, the condition that the dust concentration exceeds the standard for a long time is extremely easy to appear, and does not have a remote alarm function, can only carry out audible and visual alarm in a small range on site, and cannot timely transmit the alarm when the dust concentration exceeds the standard to a control room, so that a worker cannot timely know that the dust concentration exceeds the standard, therefore, the coal mine large-scale dust monitoring system and method are provided and used for solving the problems.
Disclosure of Invention
The invention aims to solve the problems that a dust monitoring system in the prior art can monitor dust in a small range, can only monitor dust concentration in a local range, cannot monitor dust in a large range from coal mining to coal crushing, does not have an intelligent control dust falling function, can only send out an alarm when the dust concentration exceeds the standard, cannot quickly and effectively reduce the dust concentration, is very easy to exceed the standard for a long time, does not have a remote alarm function, can only carry out a small-range acousto-optic alarm on site, and cannot timely transmit the alarm when the dust concentration exceeds the standard to a control room, so that a worker cannot timely know that the dust concentration exceeds the standard.
In order to achieve the purpose, the invention adopts the following technical scheme:
design a colliery dust monitoring system on a large scale, include:
a coal mining module;
a first detection module;
a first dust fall module;
a transport module;
a load-bearing housing module;
a coal crushing module;
a second detection module;
a second dust settling module;
a central processing module;
an intelligent control module;
an alarm module;
wherein:
the coal mining module includes: a coal mining machine for mining a coal mine;
the transport module includes: a conveyor belt for transporting coal;
the carrier-accommodating module includes: a closed housing for dust and sound insulation;
the coal crushing module comprises: a coal crusher for crushing coal;
the central processing module includes: a central processing unit for processing data;
the first detection module and the second detection module are connected to the input end of the central processing module;
the first dust-settling module, the second dust-settling module, the intelligent control module and the alarm module are all connected to the output end of the central processing module;
the coal mining module, the transportation module and the coal crushing module are all connected to the output end of the intelligent control module;
the coal mining module is connected with the coal crushing module through the transportation module;
and the second detection module and the coal crushing module are arranged in the bearing and accommodating module.
Preferably, the first detection module includes:
a first dust concentration sensor for detecting a concentration of dust around the coal mining machine. Preferably, the first dust settling module comprises:
an atomizing nozzle for atomizing the liquid;
a high pressure water pump for supplying high pressure water to the atomizing nozzle;
and the high-pressure water pipe is used for connecting the high-pressure water pump and the atomizing nozzle.
Preferably, the second detection module includes:
and a second dust concentration sensor for detecting the concentration of dust in the closed accommodating chamber.
Preferably, the second dust settling module comprises:
the air supply fan is used for supplying air to the closed accommodating chamber;
an air inlet pipe for connecting the air supply fan and the closed accommodating chamber;
a dust collector for removing dust from the closed accommodating chamber;
and the air outlet pipe is used for connecting the dust remover with the closed accommodating chamber.
Preferably, the intelligent control module includes:
the first frequency converter is used for controlling the running speed of the coal mining machine;
the second frequency converter is used for controlling the running speed of the conveying belt;
and the third frequency converter is used for controlling the running speed of the coal crusher.
Preferably, the alarm module includes:
an alarm for emitting sound and light;
a wireless transmitter for transmitting an alarm signal;
and the user terminal is used for receiving the alarm signal and sending out a prompt.
A coal mine large-range dust monitoring method is applicable to the coal mine large-range dust monitoring system and comprises the following steps:
when the first detection module or the second detection module detects dust, the first dust falling module and the second dust falling module are started;
when the dust concentration detected by the first detection module or the second detection module is higher than the X value, the intelligent control module is used for reducing the running speeds of the coal mining module, the transportation module and the coal crushing module;
when the dust concentration detected by the first detection module or the second detection module is higher than the X value and lasts for a long time of Y, the coal mining module, the transportation module and the coal crushing module are controlled to stop running, and the alarm module is triggered.
Preferably, the value of X is ten milligrams per cubic meter.
Preferably, the length of time Y is ten minutes.
The coal mine large-range dust monitoring system and method provided by the invention have the beneficial effects that: through setting up coal mining module, first detection module, transportation module, bearing and holding module, broken module of coal, second detection module, make it have monitoring function on a large scale, make it can carry out from coal mining to the kibbling dust monitoring of coal. Through setting up first dust fall module, second dust fall module, central processing module, make it have automatic dust fall function, can reduce dust concentration automatically to can improve the productivity. Through setting up central processing module, intelligent control module, make it have intelligent control, high-efficient dust fall function, but the functioning speed of intelligent control coal mining module, transportation module, the broken module of coal, and then effectual control dust concentration. Through setting up siren, wireless transmitter, user terminal, make it have alarm and long-range alarm function, can be long-rangely transmit alarm signal to the control room to can make the staff in time learn the site conditions, thereby have higher security.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a coal mine large-scale dust monitoring system according to the present invention;
FIG. 2 is a schematic view of a local structure of a large-scale dust monitoring system for a coal mine according to the present invention;
FIG. 3 is a schematic view of a local structure of a large-scale dust monitoring system for a coal mine according to the present invention;
FIG. 4 is a schematic view of a local structure of a large-scale dust monitoring system for a coal mine according to the present invention;
FIG. 5 is a schematic view of a local structure of a large-scale dust monitoring system for a coal mine according to the present invention;
fig. 6 is a schematic structural diagram of a coal mine large-scale dust monitoring method provided by the invention.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, a coal mine wide range dust monitoring system includes:
a coal mining module;
a first detection module;
a first dust fall module;
a transport module;
a load-bearing housing module;
a coal crushing module;
a second detection module;
a second dust settling module;
a central processing module;
an intelligent control module;
an alarm module;
wherein:
the coal mining module includes:
the coal mining machine is one of important devices for realizing mechanization and modernization of coal mine production.
The transport module comprises:
a conveying belt for conveying coal (the conveying belt is a composite product of rubber, fiber and metal or a composite product of plastic and fabric which is used for bearing and conveying materials in the belt conveying belt).
The load-bearing housing module includes:
and the closed accommodating chamber is used for dust insulation and sound insulation.
The coal crushing module comprises:
coal crushers (coal crushers are machines for crushing coal ores, commonly used ring hammer crushers and hammer crushers, and also commonly used for crushing minerals of other various brittle materials, medium-hard materials with low moisture content).
The central processing module includes:
a central processing unit for processing data.
The first detection module includes:
a first dust concentration sensor for detecting a concentration of dust around the coal mining machine.
First dust fall module includes:
an atomizing nozzle for atomizing the liquid;
the high-pressure water pump used for supplying high-pressure water for the atomizing nozzle (the water pump is a machine for conveying liquid or pressurizing liquid, it transfers the mechanical energy of prime mover or other external energy to the liquid, so that the liquid energy is increased, it is mainly used for conveying liquid including water, oil, acid-base liquid, emulsion, suspoemulsion and liquid metal, etc., also can convey liquid, gas mixture and liquid containing suspended solid matter, the technical parameters of the water pump performance include flow, suction lift, shaft power, water power and efficiency, etc., according to different working principles, it can be divided into volume water pump, vane pump, etc., the volume pump utilizes the change of its working chamber volume to transfer energy, the vane pump utilizes the interaction of rotary vane and water to transfer energy, and there are centrifugal pump, shaft pump and mixed flow pump, etc.);
and the high-pressure water pipe is used for connecting the high-pressure water pump and the atomizing nozzle.
The second detection module includes:
and a second dust concentration sensor for detecting the concentration of dust in the closed accommodating chamber.
The second dust fall module includes:
the fan is a short form of Chinese habit for gas compression and gas delivery machines, and generally comprises a fan and a blower;
an air inlet pipe for connecting the air supply fan and the closed accommodating chamber;
a dust collector for removing dust from the closed accommodating chamber (dust collector, which is a device for separating dust from flue gas and is called dust collector or dust removing device, the performance of the dust collector is expressed by the amount of gas that can be processed, the resistance loss and dust removing efficiency of the gas passing through the dust collector, and meanwhile, the price, the operation and maintenance cost, the service life and the difficulty of operation management of the dust collector are also important factors considering the performance);
and the air outlet pipe is used for connecting the dust remover with the closed accommodating chamber.
The intelligent control module includes:
the first frequency converter is used for controlling the running speed of the coal mining machine;
the second frequency converter is used for controlling the running speed of the conveying belt;
and the third frequency converter is used for controlling the running speed of the coal crusher.
The alarm module includes:
an alarm for emitting sound and light;
a wireless transmitter for transmitting an alarm signal;
and the user terminal is used for receiving the alarm signal and sending out a prompt.
In the specific implementation: the first dust concentration sensor is mounted on the coal mining machine.
The atomizing nozzle is installed on the coal mining machine.
The second dust concentration sensor is installed at the top of the closed accommodating chamber.
The conveying belt is provided with a dust-isolating cover.
The first detection module and the second detection module are connected to the input end of the central processing module;
the first dust-settling module, the second dust-settling module, the intelligent control module and the alarm module are all connected to the output end of the central processing module;
the coal mining module, the transportation module and the coal crushing module are all connected to the output end of the intelligent control module;
the coal mining module is connected with the coal crushing module through the transportation module, the input end of the transportation module is connected to the output end of the coal mining module, and the output end of the transportation module is connected to the input end of the coal crushing module;
the second detection module and the coal crushing module are arranged in the bearing and accommodating module.
In another embodiment: a material output module is arranged in the bearing and accommodating module;
the material output module includes:
and the output conveyor belt is used for outputting coal.
The input end of the material output module is connected to the output end of the coal crushing module.
Referring to fig. 6, a coal mine large-scale dust monitoring method is applicable to a coal mine large-scale dust monitoring system, and includes:
when the first detection module or the second detection module detects dust, the first dust falling module and the second dust falling module are started;
when the dust concentration detected by the first detection module or the second detection module is higher than the X value, the intelligent control module is used for reducing the running speeds of the coal mining module, the transportation module and the coal crushing module;
when the dust concentration detected by the first detection module or the second detection module is higher than the X value and lasts for a long time of Y, the coal mining module, the transportation module and the coal crushing module are controlled to stop running, and the alarm module is triggered.
The value of X is ten milligrams per cubic meter.
The duration of Y is ten minutes.
When in use, the invention:
through setting up coal mining module, first detection module, transportation module, bearing and holding module, broken module of coal, second detection module, make it have monitor function on a large scale, make it can carry out from coal mining to the kibbling dust monitoring of coal, during the concrete implementation: when coal is excavated by the coal mining machine, the first dust concentration sensor can monitor the dust concentration around the coal mining machine, then the conveying belt can convey the coal excavated by the coal mining machine to the coal crusher, the coal crusher and the second dust concentration sensor are arranged in the closed accommodating chamber, the closed accommodating chamber can prevent dust from polluting the outside, the second dust concentration sensor can monitor the dust concentration in the closed accommodating chamber, and further the large-range dust concentration monitoring is realized.
Through setting up first dust fall module, second dust fall module, central processing module, make it have automatic dust fall function, can reduce dust concentration automatically to can improve the productivity, during the concrete implementation: when first dust concentration sensor or second dust concentration sensor monitor the dust, can be with signal transmission to central processing unit, then central processing unit can open high pressure water pump or air feed fan, dust remover and carry out automatic dust fall, and then realize automatic dust fall.
Through setting up central processing module, intelligent control module, make it have intelligent control, high-efficient dust fall function, but the functioning speed of intelligent control coal mining module, transportation module, the broken module of coal, and then effectual control dust concentration, during concrete implementation: when the dust concentration detected by the first dust concentration sensor or the second dust concentration sensor is higher than a certain value, the central processor can automatically control the running speed of the coal mining machine, the conveyer belt and the coal crusher to be reduced through the first frequency converter, the second frequency converter and the third frequency converter, when the running speed of the coal mining machine, the conveyer belt and the coal crusher is reduced, the dust generation amount is reduced, and meanwhile, the first dust falling module and the second dust falling module are used for falling dust, thereby realizing high-efficiency dust fall, ensuring that the dust concentration does not exceed the standard, and when the dust concentration detected by the first detection module or the second detection module is higher than a certain value and lasts for a certain time, the central processing module can control the coal mining module, the transportation module and the coal crushing module to stop running through the intelligent control module, so that the safety is high.
Through setting up siren, wireless transmitter, user terminal, make it have alarm and remote alarm function, can be long-rangely transmit alarm signal to the control room to can make the staff in time learn the site conditions, during the concrete implementation: when dust concentration that first detection module or second detection module detected is higher than the X value and when lasting Y duration, then control coal mining module, the transportation module, broken module of coal stops operating, and trigger alarm module, after alarm module is triggered, central processing unit can control the siren and send out the police dispatch newspaper at the scene, can control wireless transmitter simultaneously and send alarm signal to long-range user terminal, user terminal is after receiving alarm signal, can take place the police dispatch newspaper in the remote control room, and then realize alarm and remote alarm, can make the staff in time learn the condition, thereby higher security has.
It should be noted that:
1. first dust concentration sensor, second dust concentration sensor in this application are prior art, and no longer give unnecessary details here, and its specific function and principle are: the dust concentration sensor can directly read the mass concentration of dust particles in the air. The sensor utilizes external air to enter a sensor dark room through a labyrinth air inlet under the suction force of an exhaust fan. When the floating dust in the air is irradiated by the parallel light from the laser generator in the dark room, the scattered light intensity of the dust is proportional to the mass concentration, and the scattered light is converted into photocurrent by the photoelectric converter and is converted into the photoelectric pulse number proportional to the scattered light intensity by the photocurrent integrating circuit of the main control panel. The relative mass concentration of the dust can be measured by calculating the pulse number.
2. The alarm in this application is prior art, and the text is not repeated, and its specific function is: an alarm is an electronic product that reminds or warns people of taking certain action in the form of sound, light, air pressure and the like in order to prevent or prevent the consequences caused by certain events, and is divided into a mechanical alarm and an electronic alarm.
3. First converter, second converter, third converter in this application are prior art, and no longer give unnecessary details in the text, and its specific function is: a Variable-frequency Drive (VFD) is a power control device that applies frequency conversion technology and microelectronic technology to control an ac motor by changing the frequency of a working power supply of the motor. The frequency converter mainly comprises a rectifying unit (alternating current to direct current), a filtering unit, an inverting unit (direct current to alternating current), a braking unit, a driving unit, a detection unit micro-processing unit and the like. The frequency converter adjusts the voltage and frequency of an output power supply by switching on and off an internal IGBT, provides the required power supply voltage according to the actual requirement of the motor, and further achieves the purposes of energy saving and speed regulation.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A coal mine large-range dust monitoring system and method are characterized by comprising the following steps:
a coal mining module;
a first detection module;
a first dust fall module;
a transport module;
a load-bearing housing module;
a coal crushing module;
a second detection module;
a second dust settling module;
a central processing module;
an intelligent control module;
an alarm module;
wherein:
the coal mining module includes: a coal mining machine for mining a coal mine;
the transport module includes: a conveyor belt for transporting coal;
the carrier-accommodating module includes: a closed housing for dust and sound insulation;
the coal crushing module comprises: a coal crusher for crushing coal;
the central processing module includes: a central processing unit for processing data;
the first detection module and the second detection module are connected to the input end of the central processing module;
the first dust-settling module, the second dust-settling module, the intelligent control module and the alarm module are all connected to the output end of the central processing module;
the coal mining module, the transportation module and the coal crushing module are all connected to the output end of the intelligent control module;
the coal mining module is connected with the coal crushing module through the transportation module;
and the second detection module and the coal crushing module are arranged in the bearing and accommodating module.
2. The coal mine wide range dust monitoring system of claim 1, wherein the first detection module comprises:
a first dust concentration sensor for detecting a concentration of dust around the coal mining machine.
3. The coal mine wide range dust monitoring system of claim 1, wherein the first dust fall module comprises:
an atomizing nozzle for atomizing the liquid;
a high pressure water pump for supplying high pressure water to the atomizing nozzle;
and the high-pressure water pipe is used for connecting the high-pressure water pump and the atomizing nozzle.
4. The coal mine wide range dust monitoring system of claim 1, wherein the second detection module comprises:
and a second dust concentration sensor for detecting the concentration of dust in the closed accommodating chamber.
5. The coal mine wide range dust monitoring system of claim 1, wherein the second dust fall module comprises:
the air supply fan is used for supplying air to the closed accommodating chamber;
an air inlet pipe for connecting the air supply fan and the closed accommodating chamber;
a dust collector for removing dust from the closed accommodating chamber;
and the air outlet pipe is used for connecting the dust remover with the closed accommodating chamber.
6. The coal mine wide range dust monitoring system of claim 1, wherein the intelligent control module comprises:
the first frequency converter is used for controlling the running speed of the coal mining machine;
the second frequency converter is used for controlling the running speed of the conveying belt;
and the third frequency converter is used for controlling the running speed of the coal crusher.
7. The coal mine wide range dust monitoring system of claim 1, wherein the alarm module comprises:
an alarm for emitting sound and light;
a wireless transmitter for transmitting an alarm signal;
and the user terminal is used for receiving the alarm signal and sending out a prompt.
8. A coal mine wide range dust monitoring method, which is suitable for the coal mine wide range dust monitoring system of any one of claims 1 to 7, and is characterized by comprising the following steps:
when the first detection module or the second detection module detects dust, the first dust falling module and the second dust falling module are started;
when the dust concentration detected by the first detection module or the second detection module is higher than the X value, the intelligent control module is used for reducing the running speeds of the coal mining module, the transportation module and the coal crushing module;
when the dust concentration detected by the first detection module or the second detection module is higher than the X value and lasts for a long time of Y, the coal mining module, the transportation module and the coal crushing module are controlled to stop running, and the alarm module is triggered.
9. The method for coal mine wide area dust monitoring of claim 8, wherein the value of X is ten milligrams per cubic meter.
10. The method for coal mine wide area dust monitoring according to claim 8, wherein said Y duration is ten minutes.
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