CN113521923A - Cloud mist intelligent dust suppression system, dust suppression method and installation method in coal washing process - Google Patents
Cloud mist intelligent dust suppression system, dust suppression method and installation method in coal washing process Download PDFInfo
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Abstract
The invention provides a cloud and mist intelligent dust suppression system, a dust suppression method and an installation method in a coal washing process, wherein the cloud and mist intelligent dust suppression system comprises the following components: the system comprises a main control machine, a cloud and mist dust suppression mechanism and a coal washing area; the cloud and mist dust suppression mechanism is provided with an air supply assembly, a micron-sized mist drying machine and a cloud and mist dust suppression assembly; the output end of the micron-sized dry fog machine is connected with the dry fog box assembly and the sprayer assembly through a water-gas distributor, provides dry fog for the cloud fog dust suppression component, and sprays and suppresses dust for the coal washing area; the system has high effective dust settling rate and quick response. The system adopts an integrated refined design, and the generating device has the advantages of small appearance, small occupied area, convenient installation and operation and full-automatic control. The system has strong water-saving function, adopts a multi-loop nozzle, and water mist particles are dry mist, and can spray water in multiple loops or in a single path according to the size of dust. When the system is in operation, the monitoring data can be analyzed and diagnosed, if the system fails or dust exceeds a threshold value, an alarm is given in time, and the safety and reliability of monitoring the coal washing area are improved.
Description
Technical Field
The invention relates to the technical field of coal washing, in particular to a cloud intelligent dust suppression system, a dust suppression method and an installation method in a coal washing process.
Background
Coal washing generally refers to the process of removing gangue or other impurities from coal. Coal washing is generally performed by utilizing the difference in physical properties between coal and gangue, and separating coal from impurities in media of different densities or characteristics.
Coal washing and selecting processing places usually generate a large amount of dust, and personnel working in the coal washing and selecting processing places are damaged by the dust, and the harm of the dust to the personnel and the safety production of coal preparation plants mainly comprises the following aspects: harm to human body
Workers who are exposed to dust for a long time can cause respiratory tract inflammation if the protection measures are insufficient, and can cause pneumoconiosis if coal dust is accumulated in the lung for a long time. Moreover, a large amount of dust can cause chronic diseases such as keratitis, skin diseases and the like after being contacted for a long time, so that the visual and auditory abilities of people are reduced, and the physical health of workers is seriously damaged.
The dust flying operation place can also cause fire and explosion, and the coal dust is easy to accumulate. On the surface of equipment, holes of the foundation of the equipment, cable bridges, the ground of a factory building and the like, the temperature for igniting the combustion of coal dust is generally at the same level as that of the equipment, the holes of the foundation of the equipment, the cable bridges, the ground of the factory building and the like because the coal dust is flammable
Electric spark, electric welding, gas cutting flame, mechanical friction and the like can be used as ignition sources for coal dust combustion. When the dust spreads to the air, the contact area of the particles and the air is multiplied, and when the concentration of the floating dust reaches a certain degree, the floating dust cloud is easily ignited when meeting open fire, so that explosion is caused, and the harm to safety production is great.
At present, dust falling equipment such as water spraying dust falling, ventilation dust falling and dust cover increasing can be used in coal washing and selecting processing places. However, if water is excessively sprayed for dust reduction, the water amount on the site is increased, the ground is wet and smooth, and hidden dangers are caused to personnel. The water yield is sprayed to the coal mine to easily cause the moisture of the coal mine to influence the later use, and the water yield is small and the dust cannot be effectively reduced. It is difficult to meet the use requirements. And the mode dust fall effect through ventilating the dust fall or increasing the dust cover is not good, discharges the dust and has also caused the pollution for around in the air.
Disclosure of Invention
The invention provides a cloud and mist intelligent dust suppression system in a coal washing process, which has high effective dust fall rate and quick effect, and comprises: the system comprises a main control machine, a cloud and mist dust suppression mechanism and a coal washing area;
the cloud and mist dust suppression mechanism is provided with an air supply assembly, a micron-sized mist drying machine and a cloud and mist dust suppression assembly;
the micron-sized dry fog machine is connected with the air supply assembly to obtain compressed air, and is connected with the water supply device to obtain dust suppression water;
the cloud dust suppression assembly is arranged in the coal washing area and the dust sensor;
cloud presses down dirt subassembly includes: the water-gas distributor, the dry fog box assembly and the sprayer assembly;
the output end of the micron-sized dry fog machine is connected with the dry fog box assembly and the sprayer assembly through a water-gas distributor, provides dry fog for the cloud fog dust suppression component, and sprays and suppresses dust for the coal washing area;
the main control machine is respectively connected with the cloud dust suppression mechanism and the dust sensor; the main control machine acquires dust information in the coal washing area through the dust sensor, and when the dust data exceeds a threshold value, the dust suppression mechanism is controlled to perform dust suppression on the coal washing area.
Preferably, a coal washing equipment area, a coal inlet area, a coal conveying belt and a coal outlet area are arranged in the coal washing area;
the coal washing equipment area, the coal inlet area, the coal conveying belt and the coal outlet area are respectively provided with a cloud dust suppression assembly, a dust sensor and a camera;
the main control machine sets air pressure data, water pressure data, air flow data and water flow data of the micron-sized dry fog machine and controls the dry fog control valve to be opened or closed according to preset data;
the main control machine is provided with a touch screen, an automatic manual dust suppression conversion module and a data processing module;
the data processing module is connected with the touch screen, acquires the set operation information of the system by a user and displays the operation state information of the system;
the data processing module is connected with the manual and automatic dust suppression conversion module to acquire a manual operation mode or an automatic operation mode configured by a user.
Preferably, the gas supply assembly comprises: a screw air compressor and air reservoir; the screw air compressor provides an air source for the micron-sized dry fog machine through an air storage tank;
the water-gas distributor realizes the delivery of water and gas to the dry fog box assembly according to a control instruction sent by the main control computer;
the dry fog box assembly receives the gas and the water conveyed by the gas-water distributor, and converts the gas and the water into dry fog with the particle diameter of 1-10 mu m, and the dry fog is sprayed to the dust suppression point through the sprayer assembly.
Preferably, the micron-sized dry fog machine, the water-air distributor and the dry fog box assembly are connected through water-air connecting pipelines;
a temperature sensor and an exhaust device are also arranged in the coal washing area;
electric heat tracing devices are respectively arranged on the micron-sized dry fog machine, the sprayer assembly and the water-gas connecting pipeline;
the main control machine acquires temperature information in the coal washing area through a temperature sensor, and controls the electric tracing device to operate when the temperature is lower than a preset temperature threshold;
the main control machine is connected with the exhaust device, and controls the exhaust device to operate to ventilate and ventilate the coal washing area.
Preferably, the main control computer monitors operation data and dust data of the coal washing area equipment and operation data of the cloud and mist dust suppression mechanism in real time, configures a data source for each data, performs type conversion on the received data, and configures the data into a preset data type;
the main control computer performs format conversion based on the configured data source and the data type, and stores the converted data into the storage;
the main control machine also obtains a dust alarm mode set by a user, a coal washing area equipment operation alarm mode and a cloud and mist dust suppression mechanism operation alarm mode;
and analyzing and judging the monitoring data acquired in real time, and when abnormality occurs, giving an alarm prompt based on a configuration alarm mode.
Preferably, after monitoring the operation of the coal washing area equipment, the main control computer controls the operation of the cloud dust suppression mechanism and performs spraying according to a first preset spraying amount;
when the dust amount in the coal washing area reaches the preset dust amount, controlling the cloud dust suppression mechanism to perform injection at a second preset injection amount, and monitoring the dust amount in the coal washing area in real time;
the main control computer counts the monitoring data and generates a dust suppression analysis report;
performing visual display on the dust suppression process according to the user requirement;
the visual display mode comprises chart display, coal washing equipment area, coal inlet area, coal conveying belt and coal outlet area display and display according to a user preset mode.
Preferably, the main control computer is further configured to obtain monitoring configuration of the dust suppression process data, send a monitoring command to each device, and start monitoring of the dust suppression process data;
acquiring environmental change data of a dust suppression process and generating dust suppression process data; controlling the cloud and mist dust suppression mechanism according to preset dust suppression control instruction data;
and executing a monitoring module at each preset monitoring time point based on a monitoring data source, and executing a monitoring process of the dust suppression process data.
Preferably, the main control computer is provided with a dust suppression data cache region;
the main control computer is also used for converting and caching different data sources and different data types according to a preset rule;
after caching the dust suppression data, analyzing and judging the dust suppression data, and regularly transferring the processed data into a storage;
the main control computer is also used for acquiring query information input by a user, extracting dust suppression data from the storage device, putting the extracted dust suppression data into the cache region and displaying the extracted dust suppression data;
the main control machine is also used for storing the dust suppression data according to the time sequence of coal washing, and setting storage areas in a time, day, week and month mode for storage.
The invention also provides a cloud and mist intelligent dust suppression method in the coal washing process of the coal mine, and a cloud and mist intelligent dust suppression system in the coal washing process is adopted; the method comprises the following steps:
the main control computer obtains a manual automatic selection mode input by a user;
when the automatic mode is selected, the main control computer acquires the running information of the coal washing area equipment in real time and acquires the dust information in the coal washing area through the dust sensor;
after monitoring the operation of the coal washing area equipment, the main control computer controls the operation of the cloud dust suppression mechanism, performs spraying according to a first preset spraying amount, and displays the operation state of the cloud dust suppression mechanism and the system operation state in real time;
when the dust amount in the coal washing area reaches the preset dust amount, controlling the cloud dust suppression mechanism to perform injection at a second preset injection amount, and monitoring the dust amount in the coal washing area in real time;
when the manual mode is selected, the main control computer obtains a control instruction input by a user, controls the cloud and mist dust suppression mechanism to operate, and displays the operation state of the cloud and mist dust suppression mechanism and the system operation state in real time.
The invention also provides an installation method of the cloud and mist intelligent dust suppression system in the coal washing process, wherein the installation method is used for installing the cloud and mist intelligent dust suppression system in the coal washing process;
the method comprises the following steps:
installing a cloud dust suppression mechanism in a coal washing area;
1) a seamless steel pipe, a PVC, PE and nylon pipe are adopted to configure a water-gas connecting pipeline, and a valve and a flowmeter are arranged on the water-gas connecting pipeline;
2) connecting the micron-sized dry fog machine, the water-air distributor and the dry fog box assembly through water-air connecting pipelines; except for the connection with equipment and accessories by adopting flanges or screw threads, the rest parts are all connected by welding;
3. the butt weld positions of the water and gas connecting pipelines are as follows: the distance between the center of the butt welding seam on the pipeline and the bending starting point of the pipe is not less than the outer diameter of the pipe and is not less than 100 mm;
the distance between two butt welding seams is not less than 150mm and not less than the outer diameter of the pipe;
the distance between the butt welding seam and the edge of the support is not less than 50 mm; when the welded steel pipes are butted, the longitudinal welding seams are staggered by 90 degrees;
the water-gas connecting pipeline is installed and combined with the field reality, the valve is convenient to operate and overhaul as a principle, and technical measures for preventing the expansion and deformation caused by temperature change and vibration are set in proper positions of the obviously arranged pipeline in consideration and are parallel to each other; the pipelines in the curve part are parallel and keep equal distance, and the curvature radii are equal;
4) after the cloud and mist dust suppression mechanism is installed, performing a hydrostatic test;
after the cloud mist dust suppression mechanism is pressed to be qualified, cleaning is carried out according to the standard to remove dirt in the pipe, and water washing is continuously carried out until the color and the transparency of water at the outlet are consistent with those at the inlet in visual inspection;
after the compressed air pipeline is installed, performing a tightness test according to the standard;
5) after the pressure test of the cloud dust suppression mechanism is qualified, performing corrosion prevention and mounting of a heat insulation layer;
6) the water supply and air pipelines of the cloud and fog dust suppression mechanism adopt electric tracing heat preservation measures, and the electric tracing adopts a 220V explosion-proof self-temperature-limiting electric tracing band and has heat preservation measures; the electric tracing band is uniformly distributed on the water and gas pipeline in a direct paving mode, is coated with rock wool and is fixed by a galvanized plate.
According to the technical scheme, the invention has the following advantages:
in the intelligent cloud mist dust suppression system, the dust suppression method and the installation method in the coal washing process, the system drives the sound wave oscillator by compressed air, water is highly atomized at a nozzle resonance chamber under the sound explosion effect of high-frequency sound waves, and fine water mist particles with the diameter of less than 10 microns (the mist with the diameter of less than 10 microns is called dry mist) are generated and sprayed to dust-forming points, so that the water mist particles and the dust particles are collided, bonded and coalesced to increase, and are settled under the action of self gravity, and the dust suppression effect is achieved. The method is suitable for pollution sources in unorganized discharge and closed or semi-closed spaces, and dust treatment is carried out on the pollution sources.
The atomization particle size provided by the system is 1-10 mu m, the effective dust fall rate is up to more than 90%, and the effect is quick. And the atomization particle size of the common brand dry fog dust suppression equipment is 3-10 mu m.
The system adopts an integrated refined design, and the generating device has the advantages of small appearance, small occupied area, convenient installation and operation and full-automatic control.
The system has strong water-saving function, adopts a multi-loop nozzle, uses water mist particles as dry mist, can select multi-loop or single-path water spraying according to the size of dust, plays a role in saving water, has low water consumption and does not have secondary pollution.
The invention can count the monitoring data, the operation condition, the alarm data and the like in the system, can also realize the real-time snapshot of the dust suppression data, display the dust suppression indexes of each time point, form a dust suppression analysis report of a coal washing area, and count and query the working logs of the system. The cloud and mist dust suppression system can improve the expansibility of the cloud and mist dust suppression function of the coal washing area, has the functions of analyzing and judging the cloud and mist dust suppression process, assists a user in realizing the dust suppression and dust suppression function of the coal washing area, can position and track the problems given by the system, solves the system problems in time and meets the coal washing requirement.
The invention can support the monitoring of various dust suppression data, different types of data need to be stored after corresponding conversion, and the data types related to the invention can be based on data acquired from different devices, data based on data types and the like.
When the system is in operation, the state of the system data can be dynamically analyzed, the monitoring data can be analyzed and diagnosed, if the system fails or the dust exceeds a threshold value, an alarm is given in time, the safety and the reliability of monitoring the coal washing area are improved, the failure and the threshold value exceeding information can be visually displayed, and the safety production is facilitated.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic view of a cloud intelligent dust suppression system in a coal washing process;
FIG. 2 is a schematic view of an embodiment of a cloud intelligent dust suppression system in a coal washing process;
FIG. 3 is a schematic view of an embodiment of dust suppression on a coal belt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 3 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 embodiments. 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.
The units and algorithm steps of each example described in the embodiment disclosed in the cloud intelligent dust suppression system in the coal washing process provided by the invention can be realized by electronic hardware, computer software or a combination of the two, and in order to clearly illustrate the interchangeability of hardware and software, the components and steps of each example have been generally described in terms of functions in the above description. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The block diagram shown in the attached drawing of the cloud fog intelligent dust suppression system in the coal washing process is only a functional entity and does not necessarily correspond to a physically independent entity. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.
In the cloud intelligent dust suppression system in the coal washing process, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may also be an electric, mechanical or other form of connection.
The cloud intelligent dust suppression system in the coal washing process provided by the invention specifically comprises: the system comprises a main control machine 1, a cloud dust suppression mechanism and a coal washing area;
the cloud dust suppression mechanism is provided with an air supply component, a micron-sized dry fog machine 2 and a cloud dust suppression component; the micron-sized dry fog machine 2 is connected with the air supply assembly to obtain compressed air, and is connected with the water supply device to obtain dust suppression water;
the cloud dust suppression assembly is arranged in the coal washing area and the dust sensor 3;
cloud presses down dirt subassembly includes: a water-gas distributor 8, a dry fog tank assembly 14 and a sprayer assembly 15; the output end of the micron-sized dry fog machine 2 is connected with a dry fog box assembly 14 and a sprayer assembly 15 through a water-gas distributor 8, provides dry fog for the cloud fog dust suppression component, and sprays and suppresses dust for the coal washing area;
the main control machine 1 is respectively connected with the cloud dust suppression mechanism and the dust sensor 3; the main control machine 1 acquires dust information in the coal washing area through the dust sensor 3, and when the dust data exceeds a threshold value, the dust suppression mechanism is controlled to perform dust suppression on the coal washing area.
The main controller 1 may include a wireless communication unit, an audio/video input unit, a user input unit, a sensing unit, an output unit, a memory, an interface unit, a controller, a power supply unit, and the like. It is to be understood that not all illustrated components are required to be implemented. More or fewer components may alternatively be implemented.
The main control machine 1 is provided with a touch screen 5, an automatic manual dust suppression conversion module 6 and a data processing module;
the touch screen 5 may include at least one of a Liquid Crystal Display (LCD), a Thin Film Transistor LCD (TFT-LCD), an Organic Light-Emitting Diode (OLED) Display, a flexible Display, a three-dimensional (3D) Display, and the like. Some of these displays may be configured to be transparent to allow a user to see from the outside, which may be referred to as transparent displays, and a typical transparent display may be, for example, a Transparent Organic Light Emitting Diode (TOLED) display or the like. Depending on the particular desired implementation, the mobile terminal 100 may include two or more display units (or other display devices), for example, the mobile terminal may include an external display unit (not shown) and an internal display unit (not shown). The touch screen 5 may be used to detect a touch input pressure as well as a touch input position and a touch input area.
Embodiments of the data Processing module may be implemented using at least one of an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a processor, a controller, a microcontroller, a microprocessor, and an electronic unit designed to perform the functions described herein, and in some cases, such embodiments may be implemented in a controller. For a software implementation, the implementation such as a process or a function may be implemented with a separate software module that allows performing at least one function or operation. The software codes may be implemented by software applications (or programs) written in any suitable programming language, which may be stored in memory and executed by the controller.
For the air supply and water supply method of the present invention, the air supply unit includes: a screw air compressor 12 and an air tank 13; the screw air compressor 12 provides an air source for the micron-sized dry fog machine 2 through an air storage tank 13; the water supply device may supply water by connecting a water supply pipeline and providing a filter net or the like in the water supply pipeline.
The screw air compressor 12 provides a standard air source for the micron-sized dry fog dust suppression device, can realize full-automatic operation under the control of the main control computer 1, provides a Chinese-English human-computer interface, and lightly touches keys, so that an operator can easily inquire the operation state parameters of the compressor through the text prompt of the interface without special training, and can realize the conversion of the manual and automatic operation states of the compressor.
The water-gas distributor 8 realizes the delivery of water and gas to the dry fog box assembly 14 according to a control instruction sent by the main control machine 1; the dry fog box assembly 14 receives the water and the water which are conveyed by the water and gas distributor 8, and converts the water and the water into dry fog with the particle diameter of 1-10 mu m, and the dry fog is sprayed to a dust suppression point through the sprayer assembly 15.
That is to say, the system is that compressed air drives the sound wave oscillator, and the sound explosion effect of high frequency sound wave atomizes water highly at the nozzle resonance chamber, produces the fine water smoke granule (the fog of diameter below 10 μm is called dry fog) of 10 μm and spouts to the dust-producing point, makes water smoke granule and dust granule collide each other, bond, coalesce and increase, and subsides under the effect of self gravity, reaches the effect of suppressing dust.
Dust can be increased by water binding, but those finest dusts (e.g., PM10-PM2.5) will only agglomerate when water droplets are small (e.g., dry mist) or chemicals (e.g., surfactants) are added to reduce the water surface tension. If the diameter of the water mist particles is larger than that of the dust particles, the dust only moves along with the airflow around the water mist particles, and the water mist particles and the dust particles are rarely or not contacted at all, so that the dust suppression effect cannot be achieved; if the size of the water mist particles is close to that of the dust particles, the dust particles collide with the water mist particles and contact with the water mist particles to be bonded together when moving along with the air flow. The smaller the mist particles, the greater the probability of agglomeration, and the larger the agglomerated dust mass becomes, and the more it is easy to fall. The dust is captured by the water mist.
In an exemplary embodiment, the micron-sized dry fog machine 2 filters air and water, controls the control valve to open or close according to a set air pressure, water pressure, air flow and water flow according to a switch program, and conveys the air and water to the dry fog box assembly 14 through a pipeline to realize spraying and dust suppression.
Furthermore, a coal washing equipment area, a coal inlet area, a coal conveying belt 16 and a coal outlet area are arranged in the coal washing area; certainly, the coal washing area can be set according to the actual coal mining situation without being limited to the partition.
The coal washing equipment area, the coal inlet area, the coal conveying belt and the coal outlet area are respectively provided with a cloud dust suppression assembly, a dust sensor 3 and a camera 4; the camera 4 can take a video image of the coal washing area.
The main control machine 1 can set air pressure data, water pressure data, air flow data and water flow data of the micron-sized dry fog machine 2 according to user settings, and controls the dry fog control valve to be opened or closed according to preset data;
the data processing module is connected with the touch screen 5 to acquire the set operation information of the system by the user and display the operation state information of the system; the data processing module is connected with the manual and automatic dust suppression conversion module 6 to obtain a manual operation mode or an automatic operation mode configured by a user.
That is, the system of the present invention incorporates the touch screen 5 or text display, the programmable controller, the protection circuit, the relay, and their related components. The user is provided with both automatic and manual modes of operation. In the automatic operation mode, the spraying of each treatment point can be automatically started or stopped according to the received field equipment running state signal. In the manual mode, an operator can control the starting or stopping of spraying of each treatment point through the touch screen 5, and can set system operation parameters such as a spraying period, pipeline purging time and the like through the touch screen 5.
In the invention, the micron-sized dry fog machine 2, the water-gas distributor 8 and the dry fog box assembly 14 are connected through a water-gas connecting pipeline; a temperature sensor 9 and an exhaust device 10 are also arranged in the coal washing area;
the micron-sized dry fog machine 2, the sprayer assembly 15 and the water-gas connecting pipeline are respectively provided with an electric heat tracing device 11;
the main control machine 1 acquires temperature information in a coal washing area through a temperature sensor 9, and controls the electric heat tracing device 11 to operate when the temperature is lower than a preset temperature threshold value;
the electric heat tracing device 11 is distributed on the micron-sized dry fog machine 2, the sprayer assembly 15, the water and gas pipeline, and is started when the environmental temperature is lower than +5 ℃, so that the stable operation of the system is ensured.
The main control machine 1 is connected with an exhaust device 10, and controls the operation of the exhaust device 10 to ventilate and ventilate the coal washing area. The user can control the air exhausting device 10 to ventilate according to the actual needs of the site, and can also reduce the humidity of the site.
As an embodiment of the invention, the main control computer 1 monitors operation data of the coal washing area equipment, dust data and operation data of the cloud and mist dust suppression mechanism in real time, configures a data source for each data, performs type conversion on the received data, and configures the data into a preset data type;
the main control machine 1 performs format conversion based on the configured data source and the data type, and stores the converted data into the storage 7; the main control machine 1 also obtains a dust alarm mode set by a user, a coal washing area equipment operation alarm mode and a cloud and mist dust suppression mechanism operation alarm mode; and analyzing and judging the monitoring data acquired in real time, and when abnormality occurs, giving an alarm prompt based on a configuration alarm mode.
After monitoring the operation of the equipment in the coal washing area, the main control machine 1 controls the operation of the cloud dust suppression mechanism and performs spraying according to a first preset spraying amount; when the dust amount in the coal washing area reaches the preset dust amount, controlling the cloud dust suppression mechanism to perform injection at a second preset injection amount, and monitoring the dust amount in the coal washing area in real time;
the main control machine 1 counts the monitoring data and generates a dust suppression analysis report; performing visual display on the dust suppression process according to the user requirement; the visual display mode comprises chart display, coal washing equipment area, coal inlet area, coal conveying belt and coal outlet area display and display according to a user preset mode;
the invention can count the monitoring data, the operation condition, the alarm data and the like in the system, can also realize the real-time snapshot of the dust suppression data, display the dust suppression indexes of each time point, form a dust suppression analysis report of a coal washing area, and count and query the working logs of the system. The cloud and mist dust suppression system can improve the expansibility of the cloud and mist dust suppression function of the coal washing area, has the functions of analyzing and judging the cloud and mist dust suppression process, assists a user in realizing the dust suppression and dust suppression function of the coal washing area, can position and track the problems given by the system, solves the system problems in time and meets the coal washing requirement.
The invention can support the monitoring of various dust suppression data, different types of data need to be stored after corresponding conversion, and the data types related to the invention can be based on data acquired from different devices, data based on data types and the like.
When the system is in operation, the state of the system data can be dynamically analyzed, the monitoring data can be analyzed and diagnosed, if the system fails or the dust exceeds a threshold value, an alarm is given in time, the safety and the reliability of monitoring the coal washing area are improved, the failure and the threshold value exceeding information can be visually displayed, and the safety production is facilitated.
The main control machine 1 is also used for acquiring monitoring configuration of dust suppression process data, sending a monitoring command to each device and starting dust suppression process data monitoring; acquiring environmental change data of a dust suppression process and generating dust suppression process data; controlling the cloud and mist dust suppression mechanism according to preset dust suppression control instruction data;
and executing a monitoring module at each preset monitoring time point based on a monitoring data source, and executing a monitoring process of the dust suppression process data.
The invention can acquire the data of the dust suppression process, analyze and interpret the data, display and store the data by periodically executing the monitoring process of the dust suppression process, thereby saving the time for transmitting the system data, reducing the data processing amount of the system, ensuring the timeliness of analyzing and judging the data and improving the accuracy of the dust suppression process.
Illustratively, the main control computer 1 is configured with a dust suppression data buffer area; the main control machine 1 is also used for converting and caching different data sources and different data types according to a preset rule; after caching the dust suppression data, analyzing and judging the dust suppression data, and regularly transferring the processed data to a storage 7; the main control computer 1 is also used for acquiring query information input by a user, extracting dust suppression data from the storage 7, putting the extracted dust suppression data into a cache region and displaying the extracted dust suppression data; the main control machine 1 is also used for storing the dust suppression data according to the time sequence of coal washing, and setting storage areas in a time, day, week and month mode for storage. The monitoring and inquiring efficiency is improved, and when a fault occurs and the threshold value is exceeded, the fault is timely processed, the stable operation of the coal washing process is ensured, and the personal safety is also ensured.
Based on the system, the invention also provides an intelligent cloud dust suppression method in the coal washing process of the coal mine, which comprises the following steps:
the main control computer obtains a manual automatic selection mode input by a user;
when the automatic mode is selected, the main control computer acquires the running information of the coal washing area equipment in real time and acquires the dust information in the coal washing area through the dust sensor;
after monitoring the operation of the coal washing area equipment, the main control computer controls the operation of the cloud dust suppression mechanism, performs spraying according to a first preset spraying amount, and displays the operation state of the cloud dust suppression mechanism and the system operation state in real time;
when the dust amount in the coal washing area reaches the preset dust amount, controlling the cloud dust suppression mechanism to perform injection at a second preset injection amount, and monitoring the dust amount in the coal washing area in real time;
when the manual mode is selected, the main control computer obtains a control instruction input by a user, controls the cloud and mist dust suppression mechanism to operate, and displays the operation state of the cloud and mist dust suppression mechanism and the system operation state in real time.
The main control computer related to the invention can be arranged in a master control room and performs centralized control on the equipment in the system.
The main control computer can collect the total dust in the air of the coal mining area by using a filter membrane with known quality, and the concentration of the total dust in the air is calculated according to the increment of the filter membrane and the gas mining amount.
After the system is put into operation, when the wind speed is less than or equal to 2m/s, the on-site dust suppression rate reaches more than 95%.
The cloud and fog dust suppression mechanism is provided with an automatic winter anti-freezing measure to ensure the normal operation of each functional system, and all water and gas pipelines are provided with heat preservation and anti-freezing designs to ensure the normal use in winter. After the water consumption of the cloud and mist dust suppression mechanism is small and the cloud and mist dust suppression mechanism is put into production, the formed material carbon cannot be frozen in winter, and the weight ratio of the increase of the average material humidity of each transfer point is less than 0.05 percent. The total power consumption of the cloud and mist dust suppression mechanism is small.
The operation of the cloud and fog dust suppression mechanism can realize two control modes of manual operation and full-automatic operation. Under the automatic operation mode, the automatic control is carried out according to the field condition, the unmanned operation can be realized, and the labor intensity of field operation workers is reduced. The cloud and mist dust suppression mechanism has the function of feeding back various alarming and operating signals (including signals of starting up, shutting down, filter blockage, low air pressure, low water pressure, automatic/manual operation state indication and the like) in the system to a remote place. In the manual operation mode, the control panel of the dust suppression device on site can be used for controlling (the device is used for debugging).
The sprayer assembly can prevent materials from impacting the nozzle and preventing freezing, and the nozzle in the sprayer assembly has a self-cleaning function. The dust suppression device has the functions of blowing, draining and preventing freezing.
It should be noted that the automatic control of the cloud intelligent dust suppression system in the coal washing process shown in the present invention may be, but is not limited to, an electric, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or any combination thereof. In the present invention, however, a computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable storage medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable storage medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, R F (ra di frequency), etc., or any suitable combination of the foregoing.
The invention also relates to an installation method of the cloud and mist intelligent dust suppression system in the coal washing process, wherein the installation method is used for installing the cloud and mist intelligent dust suppression system in the coal washing process; the method comprises the following steps:
installing a cloud dust suppression mechanism in a coal washing area;
1) a seamless steel pipe, a PVC, PE and nylon pipe are adopted to configure a water-gas connecting pipeline, and a valve and a flowmeter are arranged on the water-gas connecting pipeline;
the valve is made of products recommended and identified by China, is salt, alkali and corrosion resistant, and is required to have good sealing performance, small friction, long service life, flexible operation, opening and closing indicating devices and the like. The steel pipe flange JB74 ~ 90-59.
2) Connecting the micron-sized dry fog machine, the water-air distributor and the dry fog box assembly through water-air connecting pipelines; except for the connection with equipment and accessories by adopting flanges or screw threads, the rest parts are all connected by welding;
3. the butt weld positions of the water and gas connecting pipelines are as follows: the distance between the center of the butt welding seam on the pipeline and the bending starting point of the pipe is not less than the outer diameter of the pipe and is not less than 100 mm;
the distance between two butt welding seams is not less than 150mm and not less than the outer diameter of the pipe;
the distance between the butt welding seam and the edge of the support is not less than 50 mm; when the welded steel pipes are butted, the longitudinal welding seams are staggered by 90 degrees;
the water-gas connecting pipeline is installed and combined with the field reality, the valve is convenient to operate and overhaul as a principle, and technical measures for preventing the expansion and deformation caused by temperature change and vibration are set in proper positions of the obviously arranged pipeline in consideration and are parallel to each other; the pipelines in the curve part are parallel and keep equal distance, and the curvature radii are equal;
4) after the cloud and mist dust suppression mechanism is installed, performing a hydrostatic test;
after the cloud mist dust suppression mechanism is pressed to be qualified, cleaning is carried out according to the standard to remove dirt in the pipe, and water washing is continuously carried out until the color and the transparency of water at the outlet are consistent with those at the inlet in visual inspection;
after the compressed air pipeline is installed, performing a tightness test according to the standard;
5) after the pressure test of the cloud dust suppression mechanism is qualified, performing corrosion prevention and mounting of a heat insulation layer;
6) the water supply and air pipelines of the cloud and fog dust suppression mechanism adopt electric tracing heat preservation measures, and the electric tracing adopts a 220V explosion-proof self-temperature-limiting electric tracing band and has heat preservation measures; the electric tracing band is uniformly distributed on the water and gas pipeline in a direct paving mode, is coated with rock wool and is fixed by a galvanized plate.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a coal washing in-process cloud intelligence presses down dirt system which characterized in that includes: the system comprises a main control machine, a cloud and mist dust suppression mechanism and a coal washing area;
the cloud and mist dust suppression mechanism is provided with an air supply assembly, a micron-sized mist drying machine and a cloud and mist dust suppression assembly;
the micron-sized dry fog machine is connected with the air supply assembly to obtain compressed air, and is connected with the water supply device to obtain dust suppression water;
the cloud dust suppression assembly is arranged in the coal washing area and the dust sensor;
cloud presses down dirt subassembly includes: the water-gas distributor, the dry fog box assembly and the sprayer assembly;
the output end of the micron-sized dry fog machine is connected with the dry fog box assembly and the sprayer assembly through a water-gas distributor, provides dry fog for the cloud fog dust suppression component, and sprays and suppresses dust for the coal washing area;
the main control machine is respectively connected with the cloud dust suppression mechanism and the dust sensor; the main control machine acquires dust information in the coal washing area through the dust sensor, and when the dust data exceeds a threshold value, the dust suppression mechanism is controlled to perform dust suppression on the coal washing area.
2. The intelligent cloud dust suppression system in the coal washing process according to claim 1,
a coal washing equipment area, a coal inlet area, a coal conveying belt and a coal outlet area are arranged in the coal washing area;
the coal washing equipment area, the coal inlet area, the coal conveying belt and the coal outlet area are respectively provided with a cloud dust suppression assembly, a dust sensor and a camera;
the main control machine sets air pressure data, water pressure data, air flow data and water flow data of the micron-sized dry fog machine and controls the dry fog control valve to be opened or closed according to preset data;
the main control machine is provided with a touch screen, an automatic manual dust suppression conversion module and a data processing module;
the data processing module is connected with the touch screen, acquires the set operation information of the system by a user and displays the operation state information of the system;
the data processing module is connected with the manual and automatic dust suppression conversion module to acquire a manual operation mode or an automatic operation mode configured by a user.
3. The intelligent cloud dust suppression system in the coal washing process according to claim 1,
the air supply assembly includes: a screw air compressor and air reservoir; the screw air compressor provides an air source for the micron-sized dry fog machine through an air storage tank;
the water-gas distributor realizes the delivery of water and gas to the dry fog box assembly according to a control instruction sent by the main control computer;
the dry fog box assembly receives the gas and the water conveyed by the gas-water distributor, and converts the gas and the water into dry fog with the particle diameter of 1-10 mu m, and the dry fog is sprayed to the dust suppression point through the sprayer assembly.
4. The intelligent cloud mist dust suppression system in the coal washing process according to claim 1, wherein the micron-sized dry mist machine, the water-gas distributor and the dry mist box assembly are connected through water-gas connecting pipelines;
a temperature sensor and an exhaust device are also arranged in the coal washing area;
electric heat tracing devices are respectively arranged on the micron-sized dry fog machine, the sprayer assembly and the water-gas connecting pipeline;
the main control machine acquires temperature information in the coal washing area through a temperature sensor, and controls the electric tracing device to operate when the temperature is lower than a preset temperature threshold;
the main control machine is connected with the exhaust device, and controls the exhaust device to operate to ventilate and ventilate the coal washing area.
5. The intelligent cloud dust suppression system in the coal washing process according to claim 1,
the main control computer monitors operation data and dust data of equipment in the coal washing area and operation data of the cloud and mist dust suppression mechanism in real time, configures a data source for each data, performs type conversion on the received data, and configures the data into a preset data type;
the main control computer performs format conversion based on the configured data source and the data type, and stores the converted data into the storage;
the main control machine also obtains a dust alarm mode set by a user, a coal washing area equipment operation alarm mode and a cloud and mist dust suppression mechanism operation alarm mode;
and analyzing and judging the monitoring data acquired in real time, and when abnormality occurs, giving an alarm prompt based on a configuration alarm mode.
6. The intelligent cloud dust suppression system in the coal washing process according to claim 1,
after monitoring the operation of the coal washing area equipment, the main control computer controls the operation of the cloud dust suppression mechanism and performs spraying according to a first preset spraying amount;
when the dust amount in the coal washing area reaches the preset dust amount, controlling the cloud dust suppression mechanism to perform injection at a second preset injection amount, and monitoring the dust amount in the coal washing area in real time;
the main control computer counts the monitoring data and generates a dust suppression analysis report;
performing visual display on the dust suppression process according to the user requirement;
the visual display mode comprises chart display, coal washing equipment area, coal inlet area, coal conveying belt and coal outlet area display and display according to a user preset mode.
7. The intelligent cloud dust suppression system in the coal washing process according to claim 1,
the main control computer is also used for acquiring monitoring configuration of the dust suppression process data, sending a monitoring command to each device and starting the dust suppression process data monitoring;
acquiring environmental change data of a dust suppression process and generating dust suppression process data; controlling the cloud and mist dust suppression mechanism according to preset dust suppression control instruction data;
and executing a monitoring module at each preset monitoring time point based on a monitoring data source, and executing a monitoring process of the dust suppression process data.
8. The intelligent cloud dust suppression system in the coal washing process according to claim 1,
the main control computer is provided with a dust suppression data cache region;
the main control computer is also used for converting and caching different data sources and different data types according to a preset rule;
after caching the dust suppression data, analyzing and judging the dust suppression data, and regularly transferring the processed data into a storage;
the main control computer is also used for acquiring query information input by a user, extracting dust suppression data from the storage device, putting the extracted dust suppression data into the cache region and displaying the extracted dust suppression data;
the main control machine is also used for storing the dust suppression data according to the time sequence of coal washing, and setting storage areas in a time, day, week and month mode for storage.
9. An intelligent cloud and mist dust suppression method in a coal washing process of a coal mine is characterized in that the intelligent cloud and mist dust suppression system in the coal washing process is adopted according to any one of claims 1 to 8;
the method comprises the following steps:
the main control computer obtains a manual automatic selection mode input by a user;
when the automatic mode is selected, the main control computer acquires the running information of the coal washing area equipment in real time and acquires the dust information in the coal washing area through the dust sensor;
after monitoring the operation of the coal washing area equipment, the main control computer controls the operation of the cloud dust suppression mechanism, performs spraying according to a first preset spraying amount, and displays the operation state of the cloud dust suppression mechanism and the system operation state in real time;
when the dust amount in the coal washing area reaches the preset dust amount, controlling the cloud dust suppression mechanism to perform injection at a second preset injection amount, and monitoring the dust amount in the coal washing area in real time;
when the manual mode is selected, the main control computer obtains a control instruction input by a user, controls the cloud and mist dust suppression mechanism to operate, and displays the operation state of the cloud and mist dust suppression mechanism and the system operation state in real time.
10. An installation method of the cloud fog intelligent dust suppression system in the coal washing process is characterized in that the installation method is used for installing the cloud fog intelligent dust suppression system in the coal washing process according to any one of claims 1 to 8;
the method comprises the following steps:
installing a cloud dust suppression mechanism in a coal washing area;
1) a seamless steel pipe, a PVC, PE and nylon pipe are adopted to configure a water-gas connecting pipeline, and a valve and a flowmeter are arranged on the water-gas connecting pipeline;
2) connecting the micron-sized dry fog machine, the water-air distributor and the dry fog box assembly through water-air connecting pipelines; except for the connection with equipment and accessories by adopting flanges or screw threads, the rest parts are all connected by welding;
3. the butt weld positions of the water and gas connecting pipelines are as follows: the distance between the center of the butt welding seam on the pipeline and the bending starting point of the pipe is not less than the outer diameter of the pipe and is not less than 100 mm;
the distance between two butt welding seams is not less than 150mm and not less than the outer diameter of the pipe;
the distance between the butt welding seam and the edge of the support is not less than 50 mm; when the welded steel pipes are butted, the longitudinal welding seams are staggered by 90 degrees;
the water-gas connecting pipeline is installed and combined with the field reality, the valve is convenient to operate and overhaul as a principle, and technical measures for preventing the expansion and deformation caused by temperature change and vibration are set in proper positions of the obviously arranged pipeline in consideration and are parallel to each other; the pipelines in the curve part are parallel and keep equal distance, and the curvature radii are equal;
4) after the cloud and mist dust suppression mechanism is installed, performing a hydrostatic test;
after the cloud mist dust suppression mechanism is pressed to be qualified, cleaning is carried out according to the standard to remove dirt in the pipe, and water washing is continuously carried out until the color and the transparency of water at the outlet are consistent with those at the inlet in visual inspection;
after the compressed air pipeline is installed, performing a tightness test according to the standard;
5) after the pressure test of the cloud dust suppression mechanism is qualified, performing corrosion prevention and mounting of a heat insulation layer;
6) the water supply and air pipelines of the cloud and fog dust suppression mechanism adopt electric tracing heat preservation measures, and the electric tracing adopts a 220V explosion-proof self-temperature-limiting electric tracing band and has heat preservation measures; the electric tracing band is uniformly distributed on the water and gas pipeline in a direct paving mode, is coated with rock wool and is fixed by a galvanized plate.
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Application publication date: 20211022 |