CN112903553A - Automatic change visual multi-factor coupling's dust removal experimental system - Google Patents
Automatic change visual multi-factor coupling's dust removal experimental system Download PDFInfo
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- CN112903553A CN112903553A CN202110178137.6A CN202110178137A CN112903553A CN 112903553 A CN112903553 A CN 112903553A CN 202110178137 A CN202110178137 A CN 202110178137A CN 112903553 A CN112903553 A CN 112903553A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N2015/0681—Purposely modifying particles, e.g. humidifying for growing
Abstract
The invention discloses an automatic visual multi-factor coupling dust removal experiment system which comprises a splicing transparent roadway box body device, a parametric frequency conversion mute ventilation device, a circuit automatic control device, a liquid concentration quantitative proportioning stirring device, a liquid power source distribution device, a gas power source distribution device, a nozzle space adjusting device, a demisting rectification device, a high-voltage static electricity generating device, a water magnetizing device, an intelligent dust generating device, a sensor detection device and a data acquisition device, wherein the splicing transparent roadway box body device comprises a box body, a filter screen and a filter screen; the transparent roadway box body device capable of being spliced is of a main wind tunnel structure, so that observation and adjustment are facilitated; the data acquisition device and the sensor detection device are arranged on two sides of the roadway box body and are used for acquiring data and adjusting related parameters in the device in real time. The invention can realize the contrast investigation of multi-factor coupling on the spray dust removal effect, the obtained data is scientific and reliable, and the problem of larger error in the traditional spray dust removal experimental process can be improved, thereby providing reasonable guidance for reasonably selecting the spray dust removal mode.
Description
Technical Field
The invention belongs to the technical field of dust control method research, and particularly relates to an experimental device for researching the influence of various coupling factors on dust removal effect in spray dust removal under a multi-working-condition environment.
Background
By the end of 2020, 79.5 thousands of occupational diseases are cumulatively reported in China, wherein 87.3 thousands of occupational pneumoconiosis accounts for about 90% of the total number of reported occupational disease cases, most of the occupational diseases come from coal mine workers, the number of new coal industry pneumoconiosis cases in China accounts for more than 50% of the number of the pneumoconiosis, the number of new coal industry pneumoconiosis cases in 2019 accounts for 83% of the number of the pneumoconiosis, the adverse effect of coal mine dust on the coal mine workers far exceeds that of safe production accidents, and the coal mine dust fall has great significance for realizing coal mine harmless operation and guaranteeing the occupational safety and health of the life whole cycle of the coal mine workers.
Therefore, the problem of coal mine dust needs to be solved urgently, at present, a wet dust removal technology is the most common method for underground mine application, and spray dust removal is the most main dust prevention measure in a mine excavation operation place. However, the spray dust removal technology involves a large number of different influencing factors, and the defogging effect achieved by coupling of the different influencing factors is always required to be considered in the research, so that the experimental process is complicated. However, the development of a complete set of technology and equipment suitable for dust prevention and control in coal mines in China, and the field of experimental device and result conversion are still slightly blank.
Disclosure of Invention
The invention can accurately simulate the dust migration environment with various concentrations and particle sizes under different wind speeds and wind pressures, and can provide the condition of coupling of various factors influencing the spray dust removal effect, thereby providing a visual, parameterized, systematized and automatic experimental environment for the spray dust removal subject, and obtaining the optimal design scheme of the spray dust removal technology through the dust removal efficiency.
The invention adopts the technical scheme that the full-automatic multi-factor coupling visual dust removal experimental system comprises a splicing transparent roadway box body device, a parametric frequency conversion mute ventilation device, a circuit automatic control device, a liquid concentration quantitative proportioning stirring device, a liquid power source distribution device, a gas power source distribution device, a nozzle space position adjusting device, a demisting rectifying device, a high-voltage static electricity generating device, a water magnetizing device, an intelligent dust generating device, a sensor detecting device and a data acquisition device;
the transparent roadway box body device capable of being spliced comprises a box body, a sealing nest, a flange connection, a plug and a drainage valve; the box body is an angle steel frame box body, the top and the bottom of the box body are provided with endurance plates, and the left side and the right side of the box body are provided with acrylic plates; the single side wall of the box body is of an independent square tube structure and can be turned upwards, and flange connections are arranged at the head-tail connection parts of the box body and can be spliced to any length; plugs and openings with specified sizes can be additionally arranged at the head-tail connection parts of the box body; a drainage valve is arranged at the bottom in the box body;
the intelligent dust generating device comprises a dust generator, a dust diffusion pipe and an intelligent controller; the intelligent controller is arranged at the upper part of the dust generator, and the dust generator sends out dust through the dust diffusion pipe at the right side; the intelligent controller is arranged at the front end of the splicing transparent roadway box body device, and the dust diffusion pipe is connected with an inlet at the front end of the splicing transparent roadway box body device; the intelligent controller of the intelligent dust generating device is connected with the gas transparent pipeline of the gas power source distribution device;
the parameterized frequency conversion mute ventilation device comprises a mute fan and a variable frequency display; the video display is arranged on the upper part of the mute fan; the mute fan is positioned at the rear end of the splicing transparent roadway box body device and is connected with the outlet of the splicing transparent roadway box body device; an air outlet of the mute fan is connected with the flexible air duct;
the demisting rectifying device comprises a demisting rectifying plate and a fixer; the demisting rectifying plate is arranged at the upper part of the fixer; the demisting rectifying plates are arranged in the splicing transparent roadway box body device, and a group of demisting rectifying plates are respectively arranged at the head and the tail of each section of box body;
the nozzle space position adjusting device comprises a universal joint and a lead screw; the nozzle space position adjusting device is arranged on the inner side and the outer side of the top of the splicing transparent roadway box body device; the outer side of the top of the nozzle space position adjusting device is provided with a universal joint capable of adjusting the angle of the nozzle; the inner side of the top of the nozzle space position adjusting device is provided with a movable lead screw; the universal joint capable of adjusting the angle of the nozzle and the movable screw rod of the nozzle space position adjusting device are both provided with nozzles;
the high-voltage static electricity generating device comprises a high-voltage static electricity generator and a high-voltage static electricity intelligent controller; the high-voltage electrostatic intelligent controller is arranged at the upper part of the high-voltage electrostatic generator; the high-voltage static generator of the high-voltage static generating device is positioned at the lower parts of the universal joint and the screw rod of the nozzle space position adjusting device;
the water magnetizing device comprises a water magnetizer and a water magnetizing intelligent controller; the water magnetization intelligent controller is arranged on the upper part of the water magnetizer; the water magnetizer of the water magnetizing device is positioned at the lower part of the high-voltage electrostatic generator of the high-voltage electrostatic generating device;
the data acquisition device comprises an anemometer, a wind pressure meter and a dust concentration detector; the anemometer, the wind pressure meter and the dust concentration detector of the data acquisition device are arranged on the inner side of the spliced transparent roadway box body device box body and are sequentially and longitudinally distributed and discharged from front to back according to the sequence of the anemometer, the wind pressure meter and the dust concentration detector; an anemometer, a wind pressure meter and a dust concentration detector of the sensor detection device are arranged on a second box body of the nozzle box body;
the sensor detection device comprises a spray laser particle analyzer, a particle image velocimeter and a three-dimensional laser Doppler velocimeter; the spraying laser particle size analyzer, the particle image velocimeter and the three-dimensional laser Doppler velocimeter of the sensor detection device are arranged outside the splicing transparent roadway box body device and are sequentially and longitudinally distributed from front to back according to the sequence of the spraying laser particle size analyzer, the particle image velocimeter and the three-dimensional laser Doppler velocimeter; the sensor detection device is provided with a spray laser particle size analyzer, a particle image velocimeter and a three-dimensional laser Doppler velocimeter, which are arranged in a first box body of the nozzle box body.
Furthermore, the liquid concentration quantitative proportioning stirring device, the liquid power source distribution device and the gas power source distribution device are all arranged on the outer side of the splicing transparent roadway box body device;
the liquid concentration quantitative proportioning stirring device comprises a mute stirring motor, a conical barrel and a flow quantitative controller; the mute stirring motor is arranged at the upper part of the conical barrel; a flow quantitative controller is arranged at the inlet of the conical barrel and is connected with a faucet of the urban pipe network; the conical bottom outlet of the liquid concentration quantitative proportioning stirring device is connected with the inlet of the liquid power source distribution device;
the liquid power source distribution device comprises a plunger pump, a water separator, a liquid switch valve, a liquid pressure gauge, a liquid flowmeter and a liquid transparent pipeline; a plunger pump is arranged at the inlet of the liquid power source distribution device, the plunger pump is connected with a liquid switch valve through a liquid transparent pipeline, and the other end of the liquid switch valve is connected with the inlet of the water separator; the outlet of the water separator is connected with one to six transparent liquid pipelines in parallel; the inlet of each parallel liquid transparent pipeline is connected with a liquid pressure gauge firstly and then is connected with a liquid flowmeter; the outlet of each parallel liquid transparent pipeline is connected with a nozzle in a nozzle space position adjusting device;
the gas power source distribution device comprises an air compressor, a gas distributor, a gas switch valve, a gas pressure gauge, a gas flowmeter and a gas transparent pipeline;
an air compressor is arranged at the inlet of the gas power source distribution device and is connected with a gas switch valve through a gas transparent pipeline, and the other end of the gas switch valve is connected with the inlet of the gas distributor; the outlet of the gas distributor can be connected with one to six gas transparent pipelines in parallel; the inlet of each parallel gas transparent pipeline is connected with a gas pressure gauge firstly and then connected with a gas flowmeter; and the outlets of the parallel gas transparent pipelines are connected with nozzles in the nozzle space position adjusting device.
Furthermore, the automatic circuit control device comprises a frequency converter, a one-key starting type protection switch and an anti-power-off protection switch;
the frequency converter is electrically connected with the frequency conversion display; the one-key starting type protection switch is connected with the intelligent controller of the high-voltage static generating device, the intelligent controller of the water magnetizing device, the plunger pump, the air compressor and the mute stirring motor in series;
the power-off prevention protection switch is electrically connected with the intelligent dust generator; the power-off prevention protection switch is connected with the spray laser particle analyzer, the particle image velocimeter and the three-dimensional laser Doppler velocimeter in series; the power-off prevention protection switch is connected with the anemometer, the wind pressure meter and the dust concentration detector in series.
Furthermore, a sealed nesting sleeve is arranged at the head-tail connection part of each box body of the splicing transparent roadway box body device; the end-to-end joints of the box bodies are provided with flange connecting devices, and the box bodies can be spliced to any length; plugs and openings with specified sizes can be additionally arranged at the head-tail connection parts of the box body; and a drainage valve is arranged at the bottom in the box body.
Furthermore, the nozzle angle adjustable universal joint device and the movable lead screw fixed nozzle device of the nozzle space position adjusting device can be used for installing any number of nozzles with any number and any type at any angle at any position.
Furthermore, transparent pipelines connected with the nozzles in the nozzle space position adjusting device are all connected in parallel; the parallel transparent pipelines are all made of transparent smooth materials; each parallel transparent pipeline is connected with a switch valve, a pressure gauge and a flowmeter respectively.
Furthermore, the inlet of the liquid concentration quantitative proportioning stirring device is connected with an urban pipe network and then is connected with a flow quantitative controller so as to automatically and quantitatively add clean water with a preset volume into the conical bottom stirring barrel, add the dust suppressant and automatically stir.
Furthermore, the central axes of the transparent roadway box body device capable of being spliced, the intelligent dust generating device, the parametric frequency conversion mute ventilation device and the defogging rectification device are positioned on the same horizontal plane; the single-side wall capable of being turned up of the splicing transparent roadway box body device is provided with a hinge and a handle; the head-tail connection part of each box body of the splicing transparent roadway box body device is provided with a sealing nest; the parallel gas pipelines are all made of transparent smooth materials; the parallel liquid pipelines are all made of transparent and smooth materials.
The invention can realize the contrast investigation of multi-factor coupling on the spray dust removal effect, the obtained data is scientific and reliable, and the problem of larger error in the traditional spray dust removal experimental process can be improved, thereby providing reasonable guidance for reasonably selecting the spray dust removal mode.
Drawings
FIG. 1 is an assembled view of the overall three-dimensional structure of the present invention.
Fig. 2 is an assembly view of the three-dimensional structure of the first box of the present invention.
Fig. 3 is a schematic assembly view of the three-dimensional structure of the first case and the second case of the present invention.
In the drawings: 1-an air compressor; 2-a gas distributor; 3-gas switching valve; 4-a gas flow meter; 5-gas pressure gauge; 6-transparent pipeline; 7-an intelligent dust generating device; 8-spray laser particle size analyzer; 9-particle image velocimeter; 10-three-dimensional laser doppler velocimeter; 11-an anemometer; 12-a wind pressure meter; 13-dust concentration detector; 14-circuit automatic control device; 15-a liquid flow meter; 16-liquid pressure gauge; 17-liquid switching valve; 18-a water separator; 19-a plunger pump; 20-a conical barrel; 21-a mute stirring motor; 22-flow quantitative control instrument; 23-parametric frequency conversion mute ventilation device; 24-a flexible air duct; 25-water magnetization intelligent controller; 26-a water magnetizer; 27-nozzle spatial position adjustment means; 28-a first box; 29-high voltage electrostatic intelligent controller; 30-high voltage electrostatic generator; 31-a defogging rectifying device; 32-second box.
Detailed Description
A full-automatic multi-factor coupling visual dust removal experiment system is characterized by comprising a splicing transparent roadway box body device, a parametric frequency conversion mute ventilation device, a circuit automatic control device, a liquid concentration quantitative proportioning stirring device, a liquid power source distribution device, a gas power source distribution device, a nozzle space position adjusting device, a demisting rectification device, a high-voltage static electricity generating device, a water magnetizing device, an intelligent dust generating device, a sensor detection device and a data acquisition device;
the transparent roadway box body device capable of being spliced comprises a box body, a sealing nest, a flange connection, a plug and a drainage valve; the box body is an angle steel frame box body, the top and the bottom of the box body are provided with endurance plates, and the left side and the right side of the box body are provided with acrylic plates; the single side wall of the box body is of an independent square tube structure and can be turned upwards, and flange connections are arranged at the head-tail connection parts of the box body and can be spliced to any length; plugs and openings with specified sizes can be additionally arranged at the head-tail connection parts of the box body; a drainage valve is arranged at the bottom in the box body;
the intelligent dust generating device comprises a dust generator, a dust diffusion pipe and an intelligent controller; the intelligent controller is arranged at the upper part of the dust generator, and the dust generator sends out dust through the dust diffusion pipe at the right side; the intelligent controller is arranged at the front end of the splicing transparent roadway box body device, and the dust diffusion pipe is connected with an inlet at the front end of the splicing transparent roadway box body device; the intelligent controller of the intelligent dust generating device is connected with the gas transparent pipeline of the gas power source distribution device;
the parameterized frequency conversion mute ventilation device comprises a mute fan and a variable frequency display; the video display is arranged on the upper part of the mute fan; the mute fan is positioned at the rear end of the splicing transparent roadway box body device and is connected with the outlet of the splicing transparent roadway box body device; an air outlet of the mute fan is connected with the flexible air duct;
the demisting rectifying device comprises a demisting rectifying plate and a fixer; the demisting rectifying plate is arranged at the upper part of the fixer; the demisting rectifying plates are arranged in the splicing transparent roadway box body device, and a group of demisting rectifying plates are respectively arranged at the head and the tail of each section of box body;
the nozzle space position adjusting device comprises a universal joint and a lead screw; the nozzle space position adjusting device is arranged on the inner side and the outer side of the top of the splicing transparent roadway box body device; the outer side of the top of the nozzle space position adjusting device is provided with a universal joint capable of adjusting the angle of the nozzle; the inner side of the top of the nozzle space position adjusting device is provided with a movable lead screw; the universal joint capable of adjusting the angle of the nozzle and the movable screw rod of the nozzle space position adjusting device are both provided with nozzles;
the high-voltage static electricity generating device comprises a high-voltage static electricity generator and a high-voltage static electricity intelligent controller; the intelligent controller is arranged on the upper part of the high-voltage electrostatic generator; the high-voltage static generator of the high-voltage static generating device is positioned at the lower parts of the universal joint and the screw rod of the nozzle space position adjusting device;
the water magnetizing device comprises a water magnetizer and a water magnetizing intelligent controller; the intelligent controller is arranged on the upper part of the water magnetizer; the water magnetizer of the water magnetizing device is positioned at the lower part of the high-voltage electrostatic generator of the high-voltage electrostatic generating device;
the data acquisition device comprises an anemometer, a wind pressure meter and a dust concentration detector; the anemometer, the wind pressure meter and the dust concentration detector of the data acquisition device are arranged on the inner side of the spliced transparent roadway box body device box body and are sequentially and longitudinally distributed and discharged from front to back according to the sequence of the anemometer, the wind pressure meter and the dust concentration detector; an anemometer, a wind pressure meter and a dust concentration detector of the sensor detection device are arranged on a second section of box body of the nozzle box body;
the sensor detection device comprises a spray laser particle analyzer, a particle image velocimeter and a three-dimensional laser Doppler velocimeter; the spraying laser particle size analyzer, the particle image velocimeter and the three-dimensional laser Doppler velocimeter of the sensor detection device are arranged outside the splicing transparent roadway box body device and are sequentially and longitudinally distributed from front to back according to the sequence of the spraying laser particle size analyzer, the particle image velocimeter and the three-dimensional laser Doppler velocimeter; the sensor detection device is provided with a spray laser particle size analyzer, a particle image velocimeter and a three-dimensional laser Doppler velocimeter, and is arranged on a second section of box body provided with a nozzle box body;
preferably, the liquid concentration quantitative proportioning stirring device, the liquid power source distribution device and the gas power source distribution device are all arranged on the outer side of the spliceable transparent roadway box body device;
the liquid concentration quantitative proportioning stirring device comprises a mute stirring motor, a conical barrel and a flow quantitative controller; the mute stirring motor is arranged at the upper part of the conical barrel; a flow quantitative controller is arranged at the inlet of the conical barrel and is connected with a faucet of the urban pipe network; the conical bottom outlet of the liquid concentration quantitative proportioning stirring device is connected with the inlet of the liquid power source distribution device;
the liquid power source distribution device comprises a plunger pump, a water separator, a liquid switch valve, a liquid pressure gauge, a liquid flowmeter and a liquid transparent pipeline; a plunger pump is arranged at the inlet of the liquid power source distribution device, the plunger pump is connected with a liquid switch valve through a liquid transparent pipeline, and the other end of the liquid switch valve is connected with the inlet of the water separator; the outlet of the water separator is connected with one to six transparent liquid pipelines in parallel; the inlet of each parallel liquid transparent pipeline is connected with a liquid pressure gauge firstly and then is connected with a liquid flowmeter; the outlet of each parallel liquid transparent pipeline is connected with a nozzle in a nozzle space position adjusting device;
the gas power source distribution device comprises an air compressor, a gas distributor, a gas switch valve, a gas pressure gauge, a gas flowmeter and a gas transparent pipeline;
an air compressor is arranged at the inlet of the gas power source distribution device and is connected with a gas switch valve through a gas transparent pipeline, and the other end of the gas switch valve is connected with the inlet of the gas distributor; the outlet of the gas distributor can be connected with one to six gas transparent pipelines in parallel; the inlet of each parallel gas transparent pipeline is connected with a gas pressure gauge firstly and then connected with a gas flowmeter; the outlets of the parallel gas transparent pipelines are connected with a nozzle in a nozzle space position adjusting device;
further preferably, the automatic circuit control device comprises a frequency converter, a one-key starting type protection switch and an anti-power-off protection switch;
the frequency converter is electrically connected with the frequency conversion display; the one-key starting type protection switch is connected with the intelligent controller of the high-voltage static generating device, the intelligent controller of the water magnetizing device, the plunger pump, the air compressor and the mute stirring motor in series;
the power-off prevention protection switch is electrically connected with the dust generator; the power-off prevention protection switch is connected with the laser particle analyzer, the particle image velocimeter and the three-dimensional laser Doppler velocimeter in series; the power-off prevention protection switch is connected with the anemometer, the wind pressure meter and the dust concentration detector in series.
Preferably, the head-to-tail connection part of each box body of the transparent roadway box body device capable of being spliced is provided with a sealing nest; the end-to-end joints of the box bodies are provided with flange connecting devices, and the box bodies can be spliced to any length; plugs and openings with specified sizes can be additionally arranged at the head-tail connection parts of the box body; and a drainage valve is arranged at the bottom in the box body.
Further preferably, the nozzle space position adjusting device may include a movable screw fixing nozzle device, and the movable screw fixing nozzle device may be mounted at any position with any number of nozzles of any type and any angle.
Further preferably, the pipelines connected with the nozzles in the nozzle space position adjusting device are all connected in parallel; the parallel pipelines are all made of transparent smooth materials; each parallel pipeline is connected with a switch valve, a pressure gauge and a flowmeter respectively.
Preferably, the inlet of the liquid concentration quantitative proportioning stirring device is connected with an urban pipe network and then is connected with a flow quantitative controller so as to automatically and quantitatively add clean water with a preset volume into the conical bottom stirring barrel, add the dust suppressant and automatically stir.
Further preferably, the central axes of the transparent roadway box body device capable of being spliced, the intelligent dust generating device, the parametric frequency conversion mute ventilation device and the defogging rectifying device are positioned on the same horizontal plane; the single-side wall capable of being turned up of the splicing transparent roadway box body device is provided with a hinge and a handle; the head-tail connection part of each box body of the splicing transparent roadway box body device is provided with a sealing nest; the parallel gas pipelines are all made of transparent smooth materials; the parallel liquid pipelines are all made of transparent and smooth materials.
The technical effect brought by the technical scheme is that the contrast investigation of multi-factor coupling on the spray dust removal effect can be realized, the obtained data is scientific and reliable, and the problems of single variable and large error in the experimental process of the traditional spray dust removal experimental scheme can be solved, so that scientific and reasonable guidance is provided for selecting the spray dust removal scheme and related variable parameters.
The transparent roadway box body device capable of being spliced adopts two transparent plates with different use purposes. The two side surfaces are 2.5mm thick acrylic plates, and the device is characterized by high strength, easy cutting and processing, capability of being penetrated by a laser sensor detection device and no loss of precision; the upper surface and the lower surface are 3mm thick endurance plates which are characterized by impact resistance, toughness and convenient punching, installation and sealing.
The spliced transparent roadway box body device is reasonable in monomer size, can be spliced to be in any length, and is provided with nozzles with different purposes according to requirements, so that a multi-combination multi-layer dust removal effect is achieved; the single side wall can be completely opened, so that the data acquisition device is simple and convenient to mount, and the device cleaning work after each experiment is convenient, so that the device is not abraded; the whole body has no redundant opening, so that good sealing and no air leakage are ensured, and the experimental environment is more accurate.
The demisting rectifying device is additionally arranged at the head and the tail of a single box body of the splicable transparent roadway box body device, and aims to prevent water mist from entering a next box body and prevent the water mist from influencing a sensor detecting device and a data acquisition device in the next box body to cause experimental errors; secondly, the flow velocity of the wind tunnel formed in the box body is uniform, so that the good effect of integrally diffusing dust in the box body is achieved.
The gas and liquid pipelines connected with the nozzles in the nozzle space position adjusting device are transparent parallel pipelines so as to achieve continuous and stable gas and liquid pressure output of each nozzle, and simultaneously, the nozzles in each group can be conveniently switched on and off, so that the device is used for multi-combination research.
The automatic circuit control device is connected with the parameterized frequency conversion mute ventilation device through a frequency converter and is used for adjusting the air quantity, the air speed and the air pressure in the device; the automatic circuit control device is connected with the high-voltage static electricity generating device, the water magnetizing device, the liquid power source distributing device, the gas power source distributing device and the liquid concentration quantitative proportioning stirring device through a one-key starting type protection switch so as to prevent the electric appliance from being overloaded and protect the experimental equipment; the circuit automatic control device is connected with the intelligent dust generating device, the sensor detecting device and the data collecting device through the power-off prevention protection switch, and data loss caused by accidental power-off accidents is prevented.
The invention is described in further detail below with reference to the following figures and detailed description:
as shown in fig. 1, the full-automatic multi-factor coupling visual dust removal experimental system comprises a splicing transparent roadway box device, a parametric frequency conversion mute ventilation device 23, a circuit automatic control device 14, a liquid concentration quantitative proportioning stirring device, a liquid power source distribution device, a gas power source distribution device, a nozzle space position adjusting device 27, a demisting rectifying device 31, a high-voltage static electricity generating device, a water magnetizing device, an intelligent dust generating device 7, a sensor detection device and a data acquisition device;
the transparent roadway box body device capable of being spliced comprises a box body, a sealing nest, a flange connection, a plug and a drainage valve; the box body is an angle steel frame box body, the top and the bottom of the box body are provided with endurance plates, and the left side and the right side of the box body are provided with acrylic plates; the single side wall of the box body is of an independent square tube structure and can be turned upwards, and flange connections are arranged at the head-tail connection parts of the box body and can be spliced to any length; plugs and openings with specified sizes can be additionally arranged at the head-tail connection parts of the box body; a drainage valve is arranged at the bottom in the box body;
the intelligent dust generating device comprises a dust generator 7, a dust diffusion pipe and an intelligent controller; the intelligent controller is arranged at the upper part of the dust generator, and the dust generator sends out dust through the dust diffusion pipe at the right side; the intelligent controller is arranged at the front end of the splicing transparent roadway box body device, and the dust diffusion pipe is connected with an inlet at the front end of the splicing transparent roadway box body device; the intelligent controller of the intelligent dust generating device is connected with the gas transparent pipeline of the gas power source distribution device;
the parametric frequency conversion mute ventilation device 23 comprises a mute fan and a variable frequency display; the video display is arranged on the upper part of the mute fan; the mute fan is positioned at the rear end of the splicing transparent roadway box body device and is connected with the outlet of the splicing transparent roadway box body device; an air outlet of the mute fan is connected with a flexible air duct 24;
the defogging rectifying device 31 comprises a defogging rectifying plate and a fixer; the demisting rectifying plate is arranged at the upper part of the fixer; the demisting rectifying plates are arranged in the splicing transparent roadway box body device, and a group of demisting rectifying plates are respectively arranged at the head and the tail of each section of box body;
the nozzle space position adjusting device 27 includes a universal joint and a screw rod; the nozzle space position adjusting device is arranged on the inner side and the outer side of the top of the splicing transparent roadway box body device; the outer side of the top of the nozzle space position adjusting device is provided with a universal joint capable of adjusting the angle of the nozzle; the inner side of the top of the nozzle space position adjusting device is provided with a movable lead screw; the universal joint capable of adjusting the angle of the nozzle and the movable screw rod of the nozzle space position adjusting device are both provided with nozzles;
the high-voltage static electricity generating device comprises a high-voltage static electricity generator 30 and a high-voltage static electricity intelligent controller 29; the high-voltage electrostatic intelligent controller 29 is arranged on the upper part of the high-voltage electrostatic generator 30; the high-voltage static generator 30 of the high-voltage static generating device is positioned at the lower part of the universal joint and the screw rod of the nozzle space position adjusting device 27;
the water magnetizing device comprises a water magnetizer 26 and a water magnetizing intelligent controller 25; the intelligent controller 25 is arranged on the upper part of the water magnetizer 26; the water magnetizer 26 of the water magnetizing device is positioned at the lower part of a high-voltage static generator 30 of the high-voltage static generating device;
the data acquisition device comprises an anemometer 11, a wind pressure meter 12 and a dust concentration detector 13; an anemometer 11, a wind pressure meter 12 and a dust concentration detector 13 of the data acquisition device are arranged on the inner side of a spliced transparent roadway box body device box body and are sequentially and longitudinally distributed and discharged from front to back according to the sequence of the anemometer 11, the wind pressure meter 12 and the dust concentration detector 13; an anemometer 11, a wind pressure meter 12 and a dust concentration detector 13 of the sensor detection device are arranged on a second box body 32 of the nozzle box body;
the sensor detection device comprises a spray laser particle size analyzer 8, a particle image velocimeter 9 and a three-dimensional laser Doppler velocimeter 10; the spray laser particle size analyzer 8, the particle image velocimeter 9 and the three-dimensional laser Doppler velocimeter 10 of the sensor detection device are arranged outside the splicing transparent roadway box body device and are sequentially and longitudinally distributed from front to back according to the sequence of the spray laser particle size analyzer 8, the particle image velocimeter 9 and the three-dimensional laser Doppler velocimeter 10; the sensor detection device comprises a spray laser particle size analyzer 8, a particle image velocimeter 9 and a three-dimensional laser Doppler velocimeter 10 which are arranged in a first box body of a nozzle box body;
the liquid concentration quantitative proportioning stirring device, the liquid power source distribution device and the gas power source distribution device are all arranged on the outer side of the spliceable transparent roadway box body device;
the liquid concentration quantitative proportioning stirring device comprises a mute stirring motor 21, a conical barrel 20 and a flow quantitative controller 22; the mute stirring motor 21 is arranged at the upper part of the conical barrel 20; a flow quantitative controller 22 is arranged at the inlet of the conical barrel 20, and the flow quantitative controller 22 at the inlet of the conical barrel 20 is connected with a water tap of an urban pipe network; the conical bottom outlet of the liquid concentration quantitative proportioning stirring device is connected with the inlet of the liquid power source distribution device;
the liquid power source distribution device comprises a plunger pump 19, a water separator 18, a liquid switch valve 17, a liquid pressure gauge 16, a liquid flowmeter 15 and a liquid transparent pipeline 6; a plunger pump 19 is arranged at the inlet of the liquid power source distribution device, the plunger pump 19 is connected with a liquid switch valve 17 through a liquid transparent pipeline 6, and the other end of the liquid switch valve 17 is connected with the inlet of a water separator 18; the outlet of the water separator 18 is connected with one to six transparent liquid pipelines 6 in parallel; the inlet of each transparent liquid pipe 6 connected in parallel is connected with a liquid pressure gauge 16 and then connected with a liquid flowmeter 15; the outlet of each parallel liquid transparent pipeline 6 is connected with a nozzle in a nozzle space position adjusting device 27;
the gas power source distribution device comprises an air compressor 1, a gas distributor 2, a gas switch valve 3, a gas pressure gauge 5, a gas flowmeter 4 and a gas transparent pipeline 5;
an air compressor 1 is arranged at the inlet of the gas power source distribution device, the air compressor 1 is connected with a gas switch valve 3 through a gas transparent pipeline 6, and the other end of the gas switch valve 3 is connected with the inlet of a gas distributor 2; the outlet of the gas distributor 2 can be connected with one to six gas transparent pipelines 6 in parallel; the inlet of each parallel gas transparent pipeline 6 is connected with a gas pressure gauge 5 and then connected with a gas flowmeter 4; the outlet of each parallel gas transparent pipeline 6 is connected with a nozzle in a nozzle space position adjusting device 27;
the automatic circuit control device 14 comprises a frequency converter, a one-key starting type protection switch and an anti-power-off protection switch;
the frequency converter is electrically connected with a frequency conversion display; the one-key starting type protection switch is connected with the intelligent controller 29 of the high-voltage static electricity generating device, the intelligent controller 25 of the water magnetizing device, the plunger pump 19, the air compressor 1 and the mute stirring motor 21 in series;
the power-off prevention protection switch is electrically connected with the intelligent dust generator 7; the power-off prevention protection switch is connected in series with the spray laser particle analyzer 8, the particle image velocimeter 9 and the three-dimensional laser Doppler velocimeter 10; the power-off prevention protection switch is connected with the anemometer 11, the anemometer 12 and the dust concentration detector 13 in series.
The head-tail connection part of each box body of the transparent roadway box body device capable of being spliced is provided with a sealing nest; the end-to-end joints of the box bodies are provided with flange connecting devices, and the box bodies can be spliced to any length; plugs and openings with specified sizes can be additionally arranged at the head-tail connection parts of the box body; and a drainage valve is arranged at the bottom in the box body.
The nozzle angle-adjustable universal joint device and the movable lead screw fixed nozzle device of the nozzle space position adjusting device 27 can be used for installing any number of nozzles with any angle and any type at any position.
The transparent pipelines 6 connected with the nozzles in the nozzle space position adjusting device 27 are all connected in parallel; the parallel transparent pipelines 6 are all made of transparent smooth materials; the parallel transparent pipelines 6 are respectively connected with a switch valve, a pressure gauge and a flowmeter.
The inlet of the liquid concentration quantitative proportioning stirring device is connected with an urban pipe network and then is connected with a flow quantitative controller 22 so as to automatically and quantitatively add clean water with a preset volume into the conical bottom stirring barrel 20, add dust suppressant and automatically stir.
The central axes of the transparent roadway box body device capable of being spliced, the intelligent dust generating device 7, the parametric frequency conversion mute ventilation device 23 and the defogging rectifying device 31 are positioned on the same horizontal plane; the single-side wall capable of being turned up of the splicing transparent roadway box body device is provided with a hinge and a handle; the head-tail connection part of each box body of the splicing transparent roadway box body device is provided with a sealing nest; the parallel gas pipelines are all made of transparent smooth materials; the parallel liquid transparent pipelines 6 are all made of transparent smooth materials.
For better understanding of the present invention, the experimental procedures are briefly described with reference to the following examples:
after the automatic visual multi-factor coupled dust removal experimental system is installed in place in the manner shown in fig. 1, a siphon-type gas-liquid two-phase nozzle is installed in the nozzle space position adjusting device 27 in the first-stage box body.
a. Putting the ground 200-mesh pulverized coal into an intelligent dust generation device 7; adding the liquid with the dust suppressant of specific concentration into a conical barrel 20 of a stirring device with quantitative liquid concentration ratio, and continuously stirring by a silent stirring motor 21; then, a parameterized frequency conversion mute ventilation device 23 is started through a frequency converter of the circuit automatic control device 14, and the wind speed in the box body of the splicing transparent roadway box body device is adjusted to be 1.6m/s through an anemometer 11 of the data acquisition device; then the intelligent dust generating device 7 is started through an anti-power-off protection switch of the circuit automatic control device 14, and the mass flow is set to be 1 g/s; the dust concentration information is obtained by the dust concentration detector 13 of the data acquisition device in the second box body 32 on the premise of not carrying out spray dust removal, and data recording is carried out until the concentration is stable, and the recorded dust concentration is 100mg/m3(ii) a And on the premise of not carrying out spray dust removal, acquiring the transport rule information of the dust in the flow field by a dust concentration detector 13 of a sensor detection device in the second box body, and recording the data of the transport rule I of the dust in the flow field until the dust is uniformly and stably distributed.
b. Starting an air compressor 1 of the gas power source distribution device through a one-key starting type protection switch of the automatic circuit control device 14, adjusting a gas switch valve 3 until a gas pressure gauge 5 displays that the pressure is 0.4Mpa, and observing and recording the reading of a gas flowmeter 4; on the premise of carrying out spray dust removal, dust concentration information is obtained through the dust concentration detector 13 of the data acquisition device in the second box body 32 until the concentration is stable, and data recording is carried out until the recorded dust concentration is 15mg/m3(ii) a On the premise of carrying out spray dust removal, the dust concentration detector 13 of the sensor detection device in the second box body is used for acquiring the transport rule information of dust in the flow fieldAnd recording data until the dust is uniformly and stably distributed, and recording second transport rule data of the dust in the flow field.
c. Thus, by the formula:
in the formula:
-dust removal efficiency
The dust concentration change before and after spray dust removal and the data of the dust migration rule in the flow field are calculated and compared, so that the efficiency and the effect of the siphon type gas-liquid two-phase nozzle under the condition that the air pressure is 0.4Mpa and a certain dust suppressant is matched can be obtained.
The above description is merely exemplary of one embodiment of the coupling relationship of the present invention and is not intended to limit the present invention to the particular forms disclosed, but rather to apply to all other coupling, combining, multiplexing, layering and operating conditions and to all modifications that may occur to those skilled in the art and which are within the scope of the teachings herein. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The utility model provides a visual dust removal experimental system of full-automatic multifactor coupling which characterized in that: the device comprises a splicing transparent roadway box body device, a parametric frequency conversion mute ventilation device, an automatic circuit control device, a liquid concentration quantitative proportioning stirring device, a liquid power source distribution device, a gas power source distribution device, a nozzle space position adjusting device, a demisting rectifying device, a high-voltage static electricity generating device, a water magnetizing device, an intelligent dust generating device, a sensor detection device and a data acquisition device;
the transparent roadway box body device capable of being spliced comprises a box body, a sealing nest, a flange connection, a plug and a drainage valve; the box body is an angle steel frame box body, the top and the bottom of the box body are provided with endurance plates, and the left side and the right side of the box body are provided with acrylic plates; the single side wall of the box body is of an independent square tube structure and can be turned upwards, and flange connections are arranged at the head-tail connection parts of the box body and can be spliced to any length; plugs and openings with specified sizes can be additionally arranged at the head-tail connection parts of the box body; a drainage valve is arranged at the bottom in the box body;
the intelligent dust generating device comprises a dust generator, a dust diffusion pipe and an intelligent controller; the intelligent controller is arranged at the upper part of the dust generator, and the dust generator sends out dust through the dust diffusion pipe at the right side; the intelligent controller is arranged at the front end of the splicing transparent roadway box body device, and the dust diffusion pipe is connected with an inlet at the front end of the splicing transparent roadway box body device; the intelligent controller of the intelligent dust generating device is connected with the gas transparent pipeline of the gas power source distribution device;
the parameterized frequency conversion mute ventilation device comprises a mute fan and a variable frequency display; the video display is arranged on the upper part of the mute fan; the mute fan is positioned at the rear end of the splicing transparent roadway box body device and is connected with the outlet of the splicing transparent roadway box body device; an air outlet of the mute fan is connected with the flexible air duct;
the demisting rectifying device comprises a demisting rectifying plate and a fixer; the demisting rectifying plate is arranged at the upper part of the fixer; the demisting rectifying plates are arranged in the splicing transparent roadway box body device, and a group of demisting rectifying plates are respectively arranged at the head and the tail of each section of box body;
the nozzle space position adjusting device comprises a universal joint and a lead screw; the nozzle space position adjusting device is arranged on the inner side and the outer side of the top of the splicing transparent roadway box body device; the outer side of the top of the nozzle space position adjusting device is provided with a universal joint capable of adjusting the angle of the nozzle; the inner side of the top of the nozzle space position adjusting device is provided with a movable lead screw; the universal joint capable of adjusting the angle of the nozzle and the movable screw rod of the nozzle space position adjusting device are both provided with nozzles;
the high-voltage static electricity generating device comprises a high-voltage static electricity generator and a high-voltage static electricity intelligent controller; the high-voltage electrostatic intelligent controller is arranged at the upper part of the high-voltage electrostatic generator; the high-voltage static generator of the high-voltage static generating device is positioned at the lower parts of the universal joint and the screw rod of the nozzle space position adjusting device;
the water magnetizing device comprises a water magnetizer and a water magnetizing intelligent controller; the water magnetization intelligent controller is arranged on the upper part of the water magnetizer; the water magnetizer of the water magnetizing device is positioned at the lower part of the high-voltage electrostatic generator of the high-voltage electrostatic generating device;
the data acquisition device comprises an anemometer, a wind pressure meter and a dust concentration detector; the anemometer, the wind pressure meter and the dust concentration detector of the data acquisition device are arranged on the inner side of the spliced transparent roadway box body device box body and are sequentially and longitudinally distributed and discharged from front to back according to the sequence of the anemometer, the wind pressure meter and the dust concentration detector; an anemometer, a wind pressure meter and a dust concentration detector of the sensor detection device are arranged on a second box body of the nozzle box body;
the sensor detection device comprises a spray laser particle analyzer, a particle image velocimeter and a three-dimensional laser Doppler velocimeter; the spraying laser particle size analyzer, the particle image velocimeter and the three-dimensional laser Doppler velocimeter of the sensor detection device are arranged outside the splicing transparent roadway box body device and are sequentially and longitudinally distributed from front to back according to the sequence of the spraying laser particle size analyzer, the particle image velocimeter and the three-dimensional laser Doppler velocimeter; the sensor detection device is provided with a spray laser particle size analyzer, a particle image velocimeter and a three-dimensional laser Doppler velocimeter, which are arranged in a first box body of the nozzle box body.
2. The automated visual multi-factor coupled dust-removal experimental apparatus according to claim 1, wherein: the liquid concentration quantitative proportioning stirring device, the liquid power source distribution device and the gas power source distribution device are all arranged on the outer side of the spliceable transparent roadway box body device;
the liquid concentration quantitative proportioning stirring device comprises a mute stirring motor, a conical barrel and a flow quantitative controller; the mute stirring motor is arranged at the upper part of the conical barrel; a flow quantitative controller is arranged at the inlet of the conical barrel and is connected with a faucet of the urban pipe network; the conical bottom outlet of the liquid concentration quantitative proportioning stirring device is connected with the inlet of the liquid power source distribution device;
the liquid power source distribution device comprises a plunger pump, a water separator, a liquid switch valve, a liquid pressure gauge, a liquid flowmeter and a liquid transparent pipeline; a plunger pump is arranged at the inlet of the liquid power source distribution device, the plunger pump is connected with a liquid switch valve through a liquid transparent pipeline, and the other end of the liquid switch valve is connected with the inlet of the water separator; the outlet of the water separator is connected with one to six transparent liquid pipelines in parallel; the inlet of each parallel liquid transparent pipeline is connected with a liquid pressure gauge firstly and then is connected with a liquid flowmeter; the outlet of each parallel liquid transparent pipeline is connected with a nozzle in a nozzle space position adjusting device;
the gas power source distribution device comprises an air compressor, a gas distributor, a gas switch valve, a gas pressure gauge, a gas flowmeter and a gas transparent pipeline;
an air compressor is arranged at the inlet of the gas power source distribution device and is connected with a gas switch valve through a gas transparent pipeline, and the other end of the gas switch valve is connected with the inlet of the gas distributor; the outlet of the gas distributor can be connected with one to six gas transparent pipelines in parallel; the inlet of each parallel gas transparent pipeline is connected with a gas pressure gauge firstly and then connected with a gas flowmeter; and the outlets of the parallel gas transparent pipelines are connected with nozzles in the nozzle space position adjusting device.
3. The automated visual multi-factor coupled dust-removal experimental apparatus according to claim 1, wherein: the circuit automatic control device comprises a frequency converter, a one-key starting type protection switch and an anti-power-off protection switch;
the frequency converter is electrically connected with the frequency conversion display; the one-key starting type protection switch is connected with the intelligent controller of the high-voltage static generating device, the intelligent controller of the water magnetizing device, the plunger pump, the air compressor and the mute stirring motor in series;
the power-off prevention protection switch is electrically connected with the intelligent dust generator; the power-off prevention protection switch is connected with the spray laser particle analyzer, the particle image velocimeter and the three-dimensional laser Doppler velocimeter in series; the power-off prevention protection switch is connected with the anemometer, the wind pressure meter and the dust concentration detector in series.
4. The automated visual multi-factor coupled dust-removal experimental system of claim 1, wherein: the head-tail connection part of each box body of the splicing transparent roadway box body device is provided with a sealing nest; the end-to-end joints of the box bodies are provided with flange connecting devices, and the box bodies can be spliced to any length; plugs and openings with specified sizes can be additionally arranged at the head-tail connection parts of the box body; and a drainage valve is arranged at the bottom in the box body.
5. The automated visual multi-factor coupled dust-removal experimental system of claim 1, wherein: the nozzle space position adjusting device is provided with a universal joint device capable of adjusting the nozzle angle and a movable lead screw fixed nozzle device, and nozzles with any number and any type at any angle can be installed at any position.
6. The automated visual multi-factor coupled dust-removal experimental system of claim 1, wherein: the transparent pipelines connected with the nozzles in the nozzle space position adjusting device are all connected in parallel; the parallel transparent pipelines are all made of transparent smooth materials; each parallel transparent pipeline is connected with a switch valve, a pressure gauge and a flowmeter respectively.
7. The automated visual multi-factor coupled dust-removal experimental system of claim 1, wherein: the inlet of the liquid concentration quantitative proportioning stirring device is connected with an urban pipe network and then is connected with a flow quantitative controller so as to automatically and quantitatively add clean water with a preset volume into the conical bottom stirring barrel, add the dust suppressant and automatically stir.
8. The automated visual multi-factor coupled dust-removal experimental system of claim 1, wherein: the central axes of the transparent roadway box body device capable of being spliced, the intelligent dust generating device, the parametric frequency conversion mute ventilation device and the defogging and rectifying device are positioned on the same horizontal plane; the single-side wall capable of being turned up of the splicing transparent roadway box body device is provided with a hinge and a handle; the head-tail connection part of each box body of the splicing transparent roadway box body device is provided with a sealing nest; the parallel gas pipelines are all made of transparent smooth materials; the parallel liquid pipelines are all made of transparent and smooth materials.
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