CN113893967B - Mine multi-particle-size dust preparation and intelligent spraying device - Google Patents
Mine multi-particle-size dust preparation and intelligent spraying device Download PDFInfo
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- CN113893967B CN113893967B CN202111292125.2A CN202111292125A CN113893967B CN 113893967 B CN113893967 B CN 113893967B CN 202111292125 A CN202111292125 A CN 202111292125A CN 113893967 B CN113893967 B CN 113893967B
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- 239000000428 dust Substances 0.000 title claims abstract description 138
- 238000005507 spraying Methods 0.000 title claims abstract description 112
- 238000002360 preparation method Methods 0.000 title claims abstract description 50
- 230000005540 biological transmission Effects 0.000 claims abstract description 71
- 238000013016 damping Methods 0.000 claims abstract description 30
- 239000002245 particle Substances 0.000 claims abstract description 24
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- 238000012360 testing method Methods 0.000 abstract description 35
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- 238000004088 simulation Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/085—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to flow or pressure of liquid or other fluent material to be discharged
- B05B12/087—Flow or presssure regulators, i.e. non-electric unitary devices comprising a sensing element, e.g. a piston or a membrane, and a controlling element, e.g. a valve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/084—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to condition of liquid or other fluent material already sprayed on the target, e.g. coating thickness, weight or pattern
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B16/00—Spray booths
- B05B16/40—Construction elements specially adapted therefor, e.g. floors, walls or ceilings
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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
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Abstract
The invention discloses a mine multi-particle-size dust preparation and intelligent spraying device which comprises a device main body, wherein a dust preparation cavity and an intelligent spraying cavity are arranged on the device main body; a driving cavity, a transmission cavity, a vibration damping cavity, a control cavity, a rotating cavity and a balance cavity are arranged in the dust preparation cavity; a driving motor and a driving wheel are arranged in the driving cavity; and a vibrating screen, a funnel, an electromagnetic valve and a spraying gear are arranged in the vibrating cavity. The use result of the invention shows that the device has firm structure, good sealing performance, reasonable layout of an electrical system, stable control, stable vibration of the screen body, strong motor power, convenient use, strong operability, convenient three-door design and maintenance, natural falling of dust during vibration, better anti-overflow performance, larger storage space of the funnel, adjustable spraying amount and spraying force, and can well realize accurate preparation and intelligent spraying of dust in tests with different particle diameters, thus being suitable for popularization and application.
Description
Technical Field
The invention relates to the technical field related to mine dust monitoring and safety early warning, in particular to a device for preparing and intelligently spraying mine dust with multiple particle sizes.
Background
With the massive popularization of the automation equipment in mine exploitation, the unit yield of coal is higher and higher, and the unit dust yield is increased. Mine dust is generally divided into total dust and expiration dust, the total dust is all dust which can enter respiratory tract, the expiration dust (respiratory dust) is that the aerodynamic diameter of collected dust is below 7.07 μm, the collection efficiency of dust with aerodynamic diameter of 5 μm is 50%, the expiration dust can be deposited in alveolus and is very harmful to human body. In the coal mining process, multiple dust sources such as coal walls cut by a coal cutter, dust fall by a moving frame, ground dust raising, transfer dust swinging, dust carried by fresh air flow and the like exist, a large amount of dust is moved to underground parts along with the air flow, visual distance and erosion equipment are affected, pneumoconiosis can be induced in serious conditions, spontaneous combustion risks exist, great potential safety hazards are caused to coal mining and life and property of miners, and the dust prevention and control problem is very urgent.
In order to find out the underground dust migration rule, a physical simulation platform for multiple dust sources in an underground limited space is designed, and scientific and reasonable hardware support is provided for the research of mine dust. In this physical simulation platform, for the authenticity and the scientificity that improve the dust production effect, need design rational in infrastructure, the effectual dust preparation facilities of science, the real dust production state and the dust production effect that restores out under the different operating modes.
The invention designs the device for preparing and intelligently spraying the mine multi-particle-size dust by relying on the field test experience of the coal mine dust and the preparation principle of the test dust and through reasonable mechanical structure design and a double-motor control system, can automatically prepare the test dust with different particle sizes in a closed space, and simultaneously realizes the adjustability of spraying force and spraying amount, thereby simulating the dust production effect of underground field multi-dust sources according to different scientific research task requirements.
Disclosure of Invention
The invention aims to provide a device for preparing and intelligently spraying dust with multiple particle sizes in a mine, which is used for preparing dust with different particle sizes through reasonable mechanical structure design and a motor control system, and adopts a spraying motor and an electromagnetic valve with adjustable speed to realize stable regulation and control of spraying force and spraying amount and improve the authenticity and scientificity of physical simulation.
In order to achieve the purpose, the invention provides the following technical scheme: a mine multi-particle-size dust preparation and intelligent spraying device comprises a device main body, wherein a dust preparation cavity and an intelligent spraying cavity are arranged on the device main body; a driving cavity, a transmission cavity, a vibration damping cavity, a control cavity, a rotating cavity and a balance cavity are arranged in the dust preparation cavity;
a driving motor, a driving wheel and a riding wheel are arranged in the driving cavity;
the center positions of the upper surface and the lower surface of the transmission cavity are respectively embedded with a double-wheel guide rail, and a transmission module and a transmission frame are arranged in the transmission cavity;
the top end of the vibration cavity is connected with a dust cover through a hinge, and a vibration sieve, a vibration rod, a funnel, an electromagnetic valve and a spraying gear are arranged in the vibration cavity;
single-wheel guide rails are respectively embedded in the center positions of the upper surface and the lower surface of the vibration reduction cavity, and a vibration reduction module is installed in the vibration reduction cavity;
a controller and a spraying motor are arranged in the control cavity;
a driving gear is arranged in the rotating cavity;
and a balance gear is arranged in the balance cavity.
Preferably, the driving motor is fixedly mounted at the top of the inner side of the driving cavity, the driving motor is electrically connected with the controller, the controller adopts a DSP28335 control circuit board, an output shaft of the driving motor is fixedly connected with the center of the driving wheel, the side surface of the driving wheel is inwards concave and is of an arc structure, the left side and the right side of the driving wheel are respectively and tightly connected with the riding wheels, and the centers of the two riding wheels are fixedly mounted on the left side and the right side of the driving cavity; the bottom surface of the driving wheel is fixedly welded with a bulge at a half radius, and the center of the bulge is movably connected with the left end point of the transmission frame through a connecting rod.
Preferably, the transmission module comprises a left transmission plate, a transmission spring and a right transmission plate; the semi-spherical push surface on the right side of the transmission frame is fixedly connected with the center of the left transmission plate, a plurality of transmission springs with smaller stiffness coefficients are evenly installed on the left transmission plate, and the right ends of the transmission springs are fixed on the right transmission plate.
Preferably, two pairs of travelling wheels are respectively arranged in the left track and the right track of the double-wheel guide rail, one pair of travelling wheels is fixedly connected with the left transmission plate through a connecting rod, the other pair of travelling wheels is fixedly connected with the right transmission plate through another connecting rod, and the double-wheel guide rail structures in the upper surface and the lower surface of the transmission cavity are symmetrical.
Preferably, a pipeline preformed hole is formed in the center of the dustproof cover, and a soft dustproof rubber pad is embedded in the periphery of the dustproof cover; five vibrating rods are uniformly distributed on the vertical center line of the right transmission plate, a circular Jin Gujuan is fixedly embedded in the middle of each vibrating rod, the circular gold hoop is used for sleeving the vibrating screen, the diameter of the vibrating screen is sequentially increased from top to bottom, and the diameter of each screen hole is sequentially reduced.
Preferably, the damping module comprises a damping plate and a damping spring; the right end of the vibrating rod is uniformly fixed on a vertical center line of the vibration damping plate, a plurality of vibration damping springs with smaller stiffness coefficients are uniformly arranged on the right side surface of the vibration damping plate, and the right ends of the vibration damping springs are fixedly arranged on the right side surface of the vibration damping cavity; a pair of running wheels is arranged in the left track and the right track of the single-wheel guide rail, the running wheels are fixedly connected with the vibration damping plate through a connecting rod, and the single-wheel guide rail structures in the upper surface and the lower surface of the vibration damping cavity are symmetrical.
Preferably, the bottom end of the vibration cavity is fixedly connected with a funnel, the neck of the funnel is provided with an electromagnetic valve, a control port of the electromagnetic valve is electrically connected with a PWM (pulse-width modulation) port of a controller, and the round surface of the neck in the funnel is fixedly connected with the inner side of a spraying gear bearing;
the left side of the spraying gear is tightly meshed with the driving gear, the center of the top surface of the driving gear is fixedly connected with an output shaft of a spraying motor, the spraying motor is electrically connected with a controller, the center of the bottom surface of the driving gear is rotationally connected with the bottom surface of the rotating cavity through a bearing and a connecting rod, and the diameter of the driving gear is at least twice that of the spraying gear;
the right side of the spraying gear is tightly meshed with the balance gear, the center of the balance gear is rotationally connected with the left side face of the balance cavity through a bearing, the side faces of the driving gear and the balance gear are both sunken inwards, and the racks are all arc-shaped.
Preferably, the bottom end of the funnel stretches into the intelligent spraying cavity, a plurality of spraying small holes are uniformly distributed in the side surface and the bottom surface of the intelligent spraying cavity, the top surface of the intelligent spraying cavity is of a solid structure, and a soft dustproof rubber pad is arranged at the intersection of the top surface of the intelligent spraying cavity and the bottom end of the funnel.
Preferably, a man-machine operation interface is embedded on the left side face of the driving cavity and is electrically connected with the controller, and the man-machine operation interface is at least provided with a display screen, a main switch, a driving motor switch and a speed regulation key, a spraying motor switch and a speed regulation key and an electromagnetic valve regulation key; the front of drive cavity and transmission cavity has been seted up one number door, the vibration cavity openly has been seted up two numbers doors, the bar clear glass window has been seted up on the central line of two numbers doors, no. two door bottom ends are by the top edge department of funnel, the vibration damping cavity openly has been seted up No. three doors, the periphery of a door, no. two doors, no. three doors all is provided with soft dustproof rubber pad.
Compared with the prior art, the invention has the beneficial effects that: the invention designs a mine multi-particle-size dust preparation and intelligent spraying device by relying on coal mine dust field test experience and a test dust preparation principle through reasonable mechanical structure design and a double-motor control system, can automatically prepare test dust with different particle sizes in a closed space, simultaneously realizes the adjustability of spraying force and spraying amount, and simulates the dust production effect of multiple underground field dust sources according to different scientific research task requirements.
The specific effects of the items are as follows:
1. the dust preparation cavity and the intelligent spraying cavity are designed in a split manner, so that the dust preparation device has the function of preparing while spraying, and can realize independent preparation and spraying:
(1) Function of spraying while preparing
The opening amount of the electromagnetic valve (namely the opening degree of the neck of the funnel) is determined through an electromagnetic valve regulating key on a human-computer operation interface, a driving motor switch and a spraying motor switch are simultaneously opened, the rotating speed of a motor is regulated, the neck of the funnel is opened at the moment, test dust passing through the last layer of vibrating screen can smoothly enter an intelligent spraying cavity through the funnel, the function of preparation while spraying is realized, the preparation and spraying processes are coherent and unified, and the continuity and the stability are high;
(2) According to the requirements of scientific research tasks, the independent work of dust preparation and spraying can be realized.
(1) When the test dust is required to be obtained, the electromagnetic valve can be closed through the man-machine operation interface, only the switch of the driving motor is opened and the speed is regulated according to the requirement, at the moment, the neck of the funnel is closed, the funnel is used as a temporary storage chamber, the screened test dust is temporarily stored in the funnel, and after the preparation is finished, the second door is opened, so that the test dust can be completely taken out, and the independent work of the test dust preparation action is realized;
(2) when dust with the specified particle size is required to be sprayed, all vibrating screens are taken out through a second door, the dust with the specified particle size is poured into a vibrating cavity from the top in sequence after the second door is closed, the dust is temporarily stored in a hopper, a spraying motor switch is opened through a man-machine operation interface and the speed is regulated according to the requirement, and finally, the opening degree of the neck of the hopper (namely the spraying amount of the tested dust in unit time or the spraying amount of the tested dust in unit time) is selected through an electromagnetic valve regulation key, so that the independent work of the spraying action is realized.
2. The spraying amount can be determined by adjusting the opening degree of the electromagnetic valve, the speed of the spraying motor can be adjusted, and the spraying force (initial speed when the test dust is sprayed out) can be adjusted.
3. Due to the layered design of the vibrating screen, the vibrating screen with different screen holes can be placed according to the requirements of scientific research tasks, five types of test dust with different particle sizes can be obtained at the same time, and the anti-overflow performance of the dust in the vibrating process can be improved; the round gold hoop and the vibrating rod can ensure that the vibrating screen can move back and forth in the horizontal direction; the vibration speed can be manually set by the vibration motor speed regulating key according to requirements, and multiple guarantees are provided for dust preparation under different scientific research tasks.
4. The cooperation of the arch of drive wheel bottom surface installation and drive frame is used, and through the at the uniform velocity rotation promotion drive module reciprocating motion on same horizontal straight line of drive wheel, the dust screening can not adopt too high vibration frequency, and the cost is practiced thrift in this kind of design, and is enough to satisfy the vibration requirement.
5. Evenly install the less transmission spring of a plurality of coefficient of stiffness in the transmission module, can improve vibration frequency and vibration amplitude, at the vibration in-process, make vibration frequency be in the change condition all the time, realize the vibration of not fixed frequency, promote the screening speed and the effect of experimental dust.
6. The damping module is evenly installed the less damping spring of a plurality of coefficient of stiffness, can realize weakening the impact force that the vibration brought to the buffering of shale shaker vibration frequency and dynamics, effectively prevents the cavity resonance.
7. In the experimental dust preparation process, the respiratory dust can fly away everywhere along with the vibration, and the dust cap and the setting of soft dustproof rubber pad can block the dust that flies away in the vibration cavity well, keep the clean and tidy health of preparation process.
8. The strip-shaped transparent glass window arranged on the central line of the second door is convenient for checking the vibration condition and the screening condition; the three-door design is convenient for maintaining the mechanical structure, the motor and the control system, and the service life of the device is prolonged.
9. The dust cover is provided with a pipeline preformed hole, a material pumping machine and a pipeline can be installed on the pipeline preformed hole according to task requirements, and original dust is continuously pumped in, so that the continuity of test dust preparation and spraying can be ensured; when the pipeline preformed hole is not used, the rubber plug is used for plugging the preformed hole, so that the flying dust is prevented from overflowing.
The practical use result of the invention shows that the device has firm structure, good sealing performance, reasonable layout of an electrical system, stable control, stable vibration of the screen body, strong motor power, convenient use, strong operability, convenient three-door design and maintenance, natural falling of dust during vibration, better overflow prevention performance of the upper layer and the lower layer of the vibrating screen, larger storage space of the funnel, adjustable spraying amount and spraying force, capability of well realizing accurate preparation and intelligent spraying of dust in tests with different particle sizes and suitability for popularization and application.
Drawings
FIG. 1 is a schematic structural diagram of a multi-particle-size dust preparation and intelligent spraying device for a mine;
FIG. 2 is a schematic view of the drive wheel configuration of the present invention;
FIG. 3 is a schematic view of the cross-sectional structure of the dual wheel guide of the present invention;
FIG. 4 is a simplified illustration of the vibrating screen and vibrating rod assembly of the present invention;
FIG. 5 is a schematic view of the spray gear connection of the present invention;
FIG. 6 is a schematic view of the cross-sectional configuration of the single-wheel guide of the present invention;
fig. 7 is a top view of a multi-particle size dust preparation and intelligent spraying device for a mine according to the invention.
In the figure: 1-a device body; 2-dust preparation chamber; 3-intelligently spraying the cavity; 4-driving the cavity; 401 — a drive motor; 402-human-machine interface; 403-door number one; 5-a transmission cavity; 501-double wheel guide rail; 5011-running wheels; 502-a transmission module; 503-a transmission frame; 6-vibrating the cavity; 601-dust cap; 6011-reserving a hole in a pipeline; 602-a funnel; 6021-electromagnetic valve; 603-spraying gears; 604-door number two; 7-a vibration damping cavity; 701-single wheel guide rail; 7011-running wheel; 702-a vibration damping module; 7021-vibration damping plate; 703-door three; 8-controlling the cavity; 801-a controller; 802-spraying the motor; 9-rotating the cavity; 901-a drive gear; 10-a balance cavity; 1001-balance gear; 11-a vibrating screen; 1101-a vibrating rod; 1102-circle Jin Gujuan; 12-a drive wheel; 1201-riding wheel; 1202-bump.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-7, the present invention provides a technical solution: a mine multi-particle-size dust preparation and intelligent spraying device comprises a device main body 1, wherein a dust preparation cavity 2 and an intelligent spraying cavity 3 are arranged on the device main body 1; a driving cavity 4, a transmission cavity 5, a vibration cavity 6, a vibration damping cavity 7, a control cavity 8, a rotating cavity 9 and a balance cavity 10 are arranged in the dust preparation cavity 2;
a driving motor 401, a driving wheel 12 and a riding wheel 1201 are arranged in the driving cavity 4;
a double-wheel guide rail 501 is respectively embedded in the center positions of the upper surface and the lower surface of the transmission cavity 5, and a transmission module 502 and a transmission frame 503 are installed inside the transmission cavity;
the top end of the vibration cavity 6 is connected with a dust cover 601 through a hinge, and a vibrating screen 11, a vibrating rod 1101, a funnel 602, an electromagnetic valve 6021 and a spraying gear 603 are arranged in the vibration cavity;
single-wheel guide rails 701 are respectively embedded in the center positions of the upper surface and the lower surface of the vibration reduction cavity 7, and a vibration reduction module 702 is installed inside the vibration reduction cavity;
a controller 801 and a spraying motor 802 are arranged in the control cavity 8;
a driving gear 901 is arranged in the rotating cavity 9;
a balance gear 1001 is installed in the balance cavity 10.
The driving motor 401 is fixedly mounted at the top of the inner side of the driving cavity 4, the driving motor 401 is electrically connected with the controller 801, the controller 801 adopts a DSP28335 control circuit board, an output shaft of the driving motor 401 is fixedly connected with the center of the driving wheel 12, the side surface of the driving wheel 12 is inwards sunken and is of an arc structure, the left side and the right side of the driving wheel 12 are respectively and tightly connected with the riding wheels 1201, and the centers of the two riding wheels 1201 are fixedly mounted on the left side and the right side of the driving cavity 4; a bulge 1202 is fixedly welded at a half radius of the bottom surface of the driving wheel 12, and the center of the bulge 1202 is movably connected with the left end point of the transmission frame 503 through a connecting rod.
Wherein the transmission module 502 comprises a left transmission plate, a transmission spring and a right transmission plate; the semi-spherical push surface on the right side of the transmission frame 503 is fixedly connected with the center of the left transmission plate, a plurality of transmission springs with smaller stiffness coefficients are evenly installed on the left transmission plate, and the right ends of the transmission springs are fixed on the right transmission plate.
Two pairs of travelling wheels 5011 are respectively arranged in the left track and the right track of the double-wheel guide rail 501, one pair of travelling wheels 5011 is fixedly connected with the left transmission plate through a connecting rod, the other pair of travelling wheels is fixedly connected with the right transmission plate through another connecting rod, and the double-wheel guide rail 501 in the upper plane and the lower plane of the transmission cavity 5 is symmetrical in structure.
A pipeline preformed hole 6011 is formed in the center of the dust cover 601, and a soft dust-proof rubber pad is embedded around the dust cover 601; five vibrating rods 1101 are uniformly distributed on a vertical central line of the right transmission plate, a circular shape Jin Gujuan is fixedly embedded in the middle of each vibrating rod 1101, the circular shape Jin Gujuan is used for being sleeved with a vibrating screen 11, the diameter of each vibrating screen 11 is sequentially increased from top to bottom, and the diameter of each screen hole is sequentially reduced.
The vibration damping module 702 comprises a vibration damping plate 7021 and a vibration damping spring; the right end of the vibrating rod 1101 is uniformly fixed on a vertical central line of a vibration reduction plate 7021, a plurality of vibration reduction springs with smaller stiffness coefficients are uniformly installed on the right side surface of the vibration reduction plate 7021, and the right ends of the vibration reduction springs are fixedly installed on the right side surface of a vibration reduction cavity 7; a pair of running wheels 7011 is arranged in the left track and the right track of the single-wheel guide rail 701, the running wheels 7011 are fixedly connected with a vibration damping plate 7021 through connecting rods, and the single-wheel guide rail 701 in the upper surface and the lower surface of the vibration damping cavity 7 is symmetrical in structure.
The bottom end of the vibration cavity 6 is fixedly connected with a funnel 602, the upper neck of the funnel 602 is provided with an electromagnetic valve 6021, a control port of the electromagnetic valve 6021 is electrically connected with a PWM port of a controller 801, and the round surface of the middle neck of the funnel 602 is fixedly connected with the inner side of a bearing of the spraying gear 603;
the left side of the spraying gear 603 is tightly meshed with the driving gear 901, the center of the top surface of the driving gear 901 is fixedly connected with an output shaft of a spraying motor 802, the spraying motor 802 is electrically connected with a controller 801, the center of the bottom surface of the driving gear 901 is rotatably connected with the bottom surface of the rotating cavity 9 through a bearing and a connecting rod, and the diameter of the driving gear 901 is at least twice that of the spraying gear 603;
the right side of the spraying gear 603 is tightly meshed with a balance gear 1001, the center of the balance gear 1001 is rotatably connected with the left side surface of the balance cavity 10 through a bearing, the side surfaces of the driving gear 901 and the balance gear 1001 are both sunken inwards, and the racks are both arc-shaped.
The bottom end of the funnel 602 extends into the intelligent spraying cavity 3, a plurality of spraying small holes are uniformly distributed in the side surface and the bottom surface of the intelligent spraying cavity 3, the top surface of the intelligent spraying cavity 3 is of a solid structure, and a soft dustproof rubber pad is arranged at the intersection surface of the top surface of the intelligent spraying cavity 3 and the bottom end of the funnel 602.
A human-machine operation interface 402 is embedded on the left side surface of the driving cavity 4, the human-machine operation interface 402 is electrically connected with the controller 801, and the human-machine operation interface 402 is at least provided with a display screen, a main switch, a driving motor switch and a speed regulation key, a spraying motor switch and a speed regulation key, and an electromagnetic valve regulation key; the front surfaces of the driving cavity 4 and the transmission cavity 5 are provided with a first door 403, the front surface of the vibration cavity 6 is provided with a second door 604, the central line of the second door 604 is provided with a strip-shaped transparent glass window, the bottom end of the second door 604 is stopped at the upper edge of the funnel 602, the front surface of the vibration reduction cavity 7 is provided with a third door 703, and the peripheries of the first door 403, the second door 604 and the third door 703 are all provided with soft dustproof rubber pads.
The working principle is as follows: the invention is an important component in a physical simulation platform of multiple dust sources in an underground limited space, is an important test device for researching a dust production mechanism and a migration rule of mine dust, and can realize three functions according to different requirements of scientific research tasks:
(1) Test dust 'preparation while spraying' function
The operation method and principle are as follows:
(1) step one, opening a second door 604, sequentially placing the vibrating screens 11 into a circular Jin Gujuan 1102 according to task requirements, selecting the number and the screen aperture of the vibrating screens 11 according to requirements, and closing the second door 604;
(2) secondly, opening a dust cover 601, taking out a proper amount of original dust collected from a mine site, putting the original dust into the first layer of vibrating screen 11, and closing the dust cover 601;
(3) thirdly, determining the opening amount of an electromagnetic valve 6021 (namely the opening degree of the neck of the funnel 602 or the spraying amount of the test dust in unit time) through an electromagnetic valve adjusting key of the man-machine operation interface 402, simultaneously opening a driving motor switch and a spraying motor switch, and adjusting the rotating speed of the motor, at the moment, the driving motor 401 enables a driving wheel 12 to rotate stably at a constant speed through a reduction box, a transmission frame 503 pushes a transmission module 502 to reciprocate on a horizontal line, under the action of a transmission spring, a vibrating screen 11 can greatly improve the vibration frequency and the vibration amplitude to realize the non-fixed-frequency vibration, and meanwhile, a spraying motor 802 enables a driving gear 901 to rotate stably at a high speed through the reduction box to drive a spraying gear 603 to rotate synchronously;
(4) fourthly, the original dust slowly falls under the left-right shaking of the vibrating screen 11 and sequentially passes through the last layer of vibrating screen 11 to form test dust; after the test dust enters the intelligent spraying cavity 3 through the opened funnel 602, the test dust is uniformly sprayed out from the plurality of spraying pores under the action of centrifugal force, so that the function of preparing and spraying simultaneously is realized.
In addition, according to task requirements, the dust cover 601 can be opened to add original dust while preparation and spraying are carried out, a material pumping machine and a pipeline can be installed on the pipeline preformed hole 6011 to continuously pump the original dust, so that continuity of preparation and spraying of test dust can be guaranteed, preparation and spraying processes are coherent and unified, and high continuity and stability are achieved.
(2) Independent work of dust preparation action was tested.
Sometimes, test dust with different particle sizes needs to be obtained independently in scientific research tasks, and the invention can also realize independent work of test dust preparation. The operation steps and principle are as follows:
(1) firstly, the electromagnetic valve 6021 is closed through the man-machine interface 402 to ensure that the neck of the funnel 602 is in a completely closed state, and the funnel 602 is used as a temporary storage chamber at the moment;
(2) step two, opening a second door 604, sequentially placing the vibrating screens 11 into a circular Jin Gujuan 1102 according to task requirements, selecting the number and the screen aperture of the vibrating screens 11 according to requirements, and closing the second door 604;
(3) thirdly, opening the dust cover 601, putting a proper amount of original dust into the first layer of vibrating screen 11, or closing the dust cover 601, and pumping the original dust into the pipeline reserved hole 6011;
(4) fourthly, a driving motor switch is turned on through the man-machine operation interface 402 and speed is adjusted according to requirements, at the moment, along with the continuous vibration, original dust slowly and continuously falls into the next layer of vibrating screen 11, test dust which is larger than the screen aperture and smaller than the screen aperture of the last layer of vibrating screen 11 is reserved in each layer of vibrating screen 11, the test dust which passes through the last layer of vibrating screen 11 falls into the hopper 602 for temporary storage, and an experimenter can observe the whole preparation process through a strip-shaped transparent glass window arranged on the second door 604;
(5) and fifthly, after the preparation is finished, the switch of the driving motor is closed through the man-machine operation interface 402, and the second door 604 is opened to sequentially take out the test dust with different particle sizes, so that the independent work of the preparation action of the test dust is realized.
(3) Independent work of intelligent spraying action
Test dust with specified particle size is sprayed according to requirements sometimes in scientific research tasks, and the dust spraying method can also realize independent work of dust spraying of the test dust with the specified particle size. The operation steps and principle are as follows:
(1) step one, opening a second door 604, taking out all vibrating screens 11, and closing the second door 604;
(2) secondly, determining the opening amount of the electromagnetic valve 6021 (i.e. the opening degree of the neck of the funnel 602 or the spraying amount of the test dust in unit time) through an electromagnetic valve adjusting key of the man-machine operation interface 402, and simultaneously, opening a switch of a spraying motor and regulating the speed as required;
(3) and thirdly, opening the dustproof cover 601, pouring test dust with the specified particle size, or closing the dustproof cover 601, sucking the test dust with the specified particle size through the pipeline preformed hole 6011, and uniformly spraying the test dust falling into the intelligent spraying cavity 3 through a plurality of spraying small holes under the action of centrifugal force, so that the independent implementation of the intelligent spraying action is realized.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a many particle sizes of mine dust preparation and intelligence sprinkle device, includes device main part (1), its characterized in that: the device main body (1) is provided with a dust preparation cavity (2) and an intelligent spraying cavity (3); a driving cavity (4), a transmission cavity (5), a vibration cavity (6), a vibration reduction cavity (7), a control cavity (8), a rotating cavity (9) and a balance cavity (10) are arranged in the dust preparation cavity (2);
a driving motor (401), a driving wheel (12) and a riding wheel (1201) are arranged in the driving cavity (4);
the center positions of the upper surface and the lower surface of the transmission cavity (5) are respectively embedded with a double-wheel guide rail (501), and a transmission module (502) and a transmission frame (503) are installed inside the transmission cavity;
the top end of the vibration cavity (6) is connected with a dust cover (601) through a hinge, and a vibration screen (11), a vibration rod (1101), a funnel (602), an electromagnetic valve (6021) and a spraying gear (603) are arranged in the vibration cavity;
single-wheel guide rails (701) are respectively embedded in the center positions of the upper surface and the lower surface of the vibration reduction cavity (7), and a vibration reduction module (702) is installed inside the vibration reduction cavity;
a controller (801) and a spraying motor (802) are arranged in the control cavity (8);
a driving gear (901) is arranged in the rotating cavity (9);
a balance gear (1001) is arranged in the balance cavity (10);
the transmission module (502) comprises a left transmission plate, a transmission spring and a right transmission plate; the right hemispherical push surface of the transmission frame (503) is fixedly connected with the center of a left transmission plate, a plurality of transmission springs with smaller stiffness coefficients are uniformly arranged on the left transmission plate, and the right ends of the transmission springs are fixed on a right transmission plate;
a pipeline preformed hole (6011) is formed in the center of the dustproof cover (601), and a soft dustproof rubber pad is embedded in the periphery of the dustproof cover (601); the vertical center line of right side driving plate goes up evenly distributed has five vibrating arms (1101), fixed the inlaying in the middle of vibrating arm (1101) has circular Jin Gujuan (1102), circular Jin Gujuan (1102) are used for cup jointing shale shaker (11), shale shaker (11) diameter from the top down increases in proper order and the sieve mesh diameter reduces in proper order.
2. The mine multi-particle size dust preparation and intelligent spraying device of claim 1, wherein: the driving motor (401) is fixedly installed at the top of the inner side of the driving cavity (4), the driving motor (401) is electrically connected with the controller (801), the controller (801) adopts a DSP28335 control circuit board, an output shaft of the driving motor (401) is fixedly connected with the center of the driving wheel (12), the side surface of the driving wheel (12) is inwards sunken and is of an arc structure, the left side and the right side of the driving wheel (12) are respectively and tightly connected with the riding wheels (1201), and the centers of the two riding wheels (1201) are fixedly installed on the left side and the right side of the driving cavity (4); a bulge (1202) is fixedly welded at the half radius of the bottom surface of the driving wheel (12), and the center of the bulge (1202) is movably connected with the left end point of the transmission frame (503) through a connecting rod.
3. The mine multi-particle size dust preparation and intelligent spraying device of claim 1, wherein: two pairs of travelling wheels (5011) are respectively arranged in the left track and the right track of the double-wheel guide rail (501), one pair of travelling wheels (5011) is fixedly connected with the left transmission plate through a connecting rod, the other pair of travelling wheels is fixedly connected with the right transmission plate through another connecting rod, and the double-wheel guide rail (501) in the upper surface and the lower surface of the transmission cavity (5) are symmetrical in structure.
4. The mine multi-particle size dust preparation and intelligent spraying device of claim 1, wherein: the vibration reduction module (702) comprises a vibration reduction plate (7021) and a vibration reduction spring; the right end of the vibrating rod (1101) is uniformly fixed on a vertical central line of a vibration damping plate (7021), a plurality of vibration damping springs with smaller stiffness coefficients are uniformly installed on the right side surface of the vibration damping plate (7021), and the right ends of the vibration damping springs are fixedly installed on the right side surface of the vibration damping cavity (7); a pair of running wheels (7011) is arranged in the left track and the right track of the single-wheel guide rail (701), the running wheels (7011) are fixedly connected with a vibration reduction plate (7021) through a connecting rod, and the single-wheel guide rail (701) in the upper surface and the lower surface of the vibration reduction cavity (7) is symmetrical in structure.
5. The mine multi-particle size dust preparation and intelligent spraying device of claim 1, wherein: the bottom end of the vibration cavity (6) is fixedly connected with a funnel (602), the upper neck of the funnel (602) is provided with an electromagnetic valve (6021), a control port of the electromagnetic valve (6021) is electrically connected with a PWM (pulse width modulation) port of a controller (801), and the round surface of the middle neck of the funnel (602) is fixedly connected with the inner side of a bearing of the spraying gear (603);
the left side of the spraying gear (603) is tightly meshed with the driving gear (901), the center of the top surface of the driving gear (901) is fixedly connected with an output shaft of a spraying motor (802), the spraying motor (802) is electrically connected with a controller (801), the center of the bottom surface of the driving gear (901) is rotatably connected with the bottom surface of the rotating cavity (9) through a bearing and a connecting rod, and the diameter of the driving gear (901) is at least twice that of the spraying gear (603);
the right side of the spraying gear (603) is tightly meshed with a balance gear (1001), the center of the balance gear (1001) is rotatably connected with the left side surface of the balance cavity (10) through a bearing, the side surfaces of the driving gear (901) and the balance gear (1001) are both sunken inwards, and the racks are both arc-shaped.
6. The mine multi-particle size dust preparation and intelligent spraying device of claim 1, wherein: funnel (602) bottom stretches into in intelligence sprinkle cavity (3), cavity (3) side and bottom surface evenly distributed are sprinkled to intelligence sprinkle and a plurality of sprinkle the aperture, cavity (3) top surface is sprinkled to intelligence is solid construction, installs soft dustproof rubber pad with the intersection face department of funnel (602) bottom.
7. The mine multi-particle size dust preparation and intelligent spraying device of claim 1, wherein: a human-machine operation interface (402) is embedded in the left side face of the driving cavity (4), the human-machine operation interface (402) is electrically connected with the controller (801), and the human-machine operation interface (402) is at least provided with a display screen, a main switch, a driving motor switch and speed regulation key, a spraying motor switch and speed regulation key and an electromagnetic valve regulation key; drive cavity (4) and the front of transmission cavity (5) have seted up one door (403), vibration cavity (6) have openly seted up No. two doors (604), no. two have seted up the bar clear glass window on door (604) central line, no. two door (604) bottom ends the top edge department to funnel (602), damping cavity (7) openly have seted up No. three door (703), the periphery of a door (403), no. two door (604), no. three door (703) all is provided with soft dustproof rubber pad.
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| CN110270422A (en) * | 2019-06-05 | 2019-09-24 | 广州市加简派电子科技有限公司 | A kind of dust-protection type milling equipment with screening function for coal chemical industry |
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| DE102006005968A1 (en) * | 2006-02-08 | 2007-08-09 | Bühler AG | Screening device for control screening |
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| CN208928585U (en) * | 2018-08-22 | 2019-06-04 | 四川省崇州市恒丰园艺科技有限责任公司 | A kind of Tea Production is packed for classified screening device |
| CN109046943A (en) * | 2018-09-03 | 2018-12-21 | 侯明明 | A kind of husky Multifunctional screening device of road construction |
| CN211073213U (en) * | 2019-12-04 | 2020-07-24 | 青岛澜盟实业有限公司 | Automatic conveying type sand blasting machine based on glass fiber reinforced plastic train accessory wind shield machining |
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| CN110270422A (en) * | 2019-06-05 | 2019-09-24 | 广州市加简派电子科技有限公司 | A kind of dust-protection type milling equipment with screening function for coal chemical industry |
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