CN107036941A - A kind of dust reduction rate test evaluation device and method - Google Patents
A kind of dust reduction rate test evaluation device and method Download PDFInfo
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- CN107036941A CN107036941A CN201710318680.5A CN201710318680A CN107036941A CN 107036941 A CN107036941 A CN 107036941A CN 201710318680 A CN201710318680 A CN 201710318680A CN 107036941 A CN107036941 A CN 107036941A
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- 239000000428 dust Substances 0.000 title claims abstract description 133
- 238000012360 testing method Methods 0.000 title claims abstract description 33
- 238000011156 evaluation Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 48
- 239000002245 particle Substances 0.000 claims abstract description 48
- 230000006835 compression Effects 0.000 claims abstract description 13
- 238000007906 compression Methods 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 claims description 12
- 239000008187 granular material Substances 0.000 claims description 6
- 238000002474 experimental method Methods 0.000 claims description 5
- 238000010835 comparative analysis Methods 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 238000000151 deposition Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004162 soil erosion Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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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
- G01N15/02—Investigating particle size or size distribution
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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
-
- 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
- G01N15/075—Investigating concentration of particle suspensions by optical means
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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Abstract
The invention discloses a kind of dust reduction rate test evaluation device and method, include the shell of cylinder, sprayed from ducts device is provided with the upside of housing interior volume, the motor connection that the sprayed from ducts device passes through axle and outer side, the bottom of shell is connected with conical opening, dust collecting box is connected with the downside of conical opening, the interior sidewall surface of conical opening, which is provided with, to be used to make the equally distributed air blower of dust, dustfall agent reserve room is additionally provided with the outside of shell, dustfall agent reserve room is connected to the inner side of shell by output pipe, and compression pump is provided with output pipe, compression pump is provided with pressure gauge, the interior sidewall surface of shell is provided with some laser dust concentration and particle size determination instrument, and laser dust concentration and particle size determination instrument are connected to computer, end cap is provided with the top of shell.The present invention have the advantages that convenient processing and maintenance, simple in construction, easy to operate, test data accurately and reliably, operating efficiency it is high.
Description
Technical field
The present invention relates to a kind of laboratory test device, and in particular to a kind of dust reduction rate test evaluation device and method.
Background technology
China's urban atmosphere Particulate Pollution problem is increasingly serious in recent years, and wherein airborne dust is one of its main source, can
Cause breathing uncomfortable and Respiratory symptoms.Airborne dust source include bare land, build airborne dust, construction, removal, windrow,
Dregs, coal ash, factory etc..In order to improve urban air environment, contain the soil erosion, slow down desertification of land, at present, using change
It is one of effective method to learn dust suppressant, dustfall agent.Chemical dustfall's agent gradually tends to compound, ecological environment-friendly type and spy
Different type, it is widely used, vdiverse in function, dustfall efficiency is high, dust-laying effect is good, and social concerns are enjoyed in recent years；New depositing dust
Agent has good wetability, protects effect property, can rapidly catch, adsorb coalescence dust.
The existing dust pollution produced during to construction, removal, coal mining, cement plant running etc. is controlled
System, uses the application case of dustfall agent.The use of dustfall agent can quickly reduce dust in air concentration, reduce atmospheric environment dirty
Dye, reduces the injury brought to health.But the performances such as depositing dust speed, dustfall efficiency, the guarantor's effect property of different dustfall agents is excellent
It is bad, the temporary transient device or system also without a kind of test evaluation, also neither one standard provide, it is impossible to fast and effeciently select
The good dustfall agent of dust-laying effect, limits the popularization and widely application of dustfall agent.
The content of the invention
It is an object of the invention to provide a kind of dust reduction rate test evaluation device and method, to overcome of the prior art ask
Topic, the present invention have convenient processing and maintenance, simple in construction, easy to operate, test data accurately and reliably, operating efficiency height etc. it is excellent
Point.
To reach above-mentioned purpose, the present invention is adopted the following technical scheme that：
A kind of dust reduction rate test evaluation device, includes being provided with dust spray on the upside of the shell of cylinder, housing interior volume
Device is spilt, the sprayed from ducts device is by the motor connection of axle and outer side, and the bottom of shell is connected with conical opening, taper
Dust collecting box is connected with the downside of mouthful, the interior sidewall surface of conical opening, which is provided with, to be used to make the equally distributed air blower of dust, shell
Outside be additionally provided with dustfall agent reserve room, dustfall agent reserve room is connected to the inner side of shell, and output pipe by output pipe
On be provided with compression pump, compression pump is provided with pressure gauge, and the interior sidewall surface of shell is provided with some laser dust concentration and particle diameter
Analyzer, and laser dust concentration and particle size determination instrument be connected at the top of computer, shell and be provided with end cap.
Further, two groups of air blowers are arranged with the interior sidewall surface of conical opening.
Further, it is connected with dust filter screen between dust collecting box on the downside of conical opening.
Further, described sprayed from ducts device is rotating cylinder, and particulate dust is housed in rotating cylinder, if the outside of rotating cylinder provided with
Dry hole hole.
Further, some dustfall agent shower nozzles are connected with the output channel on the inside of shell.
Further, totally three, described laser dust concentration and particle size determination instrument, respectively first laser dust concentration
With particle size determination instrument, second laser dust concentration and particle size determination instrument and the 3rd laser dust concentration and particle size determination instrument, it is described
Three laser dust concentration and particle size determination instrument equidistant placement on the downside of sprayed from ducts device.
Further, in the projection of three laser dust concentration and particle size determination instrument, angle is between adjacent projection
120°。
A kind of dust reduction rate test evaluation method, comprises the following steps：
Step 1：Computer, connection computer and laser dust concentration and particle size determination instrument are opened, data analysis is opened soft
Part interface, prepares operation；
Step 2：End cap is first opened before test, particulate dust is loaded in rotating cylinder, end cap is closed, motor, motor belt motor is opened
Dynamic sprayed from ducts device rotation, regulation motor power controls rotating speed, opens air blower, makes to kick up what is come by sprayed from ducts device
Dust suspends above inside the housing, adjustment rotating speed formation air circulation, dust granules is distributed evenly in whole shell
Portion；
Step 3：Dust concentration data are observed, when some laser dust concentration and particle size determination instrument data keep constant,
Compression pump is adjusted, when the pressure gauge is shown as 3~5MPa, motor is closed, dustfall agent reserve room is opened, absorption is dispersed in shell
Dust, fall in dust collecting box；Period real-time monitored laser dust concentration and particle size determination instrument on computer interface
Detect data；
Step 4：By laser dust concentration and particle size determination instrument, dust concentration and powder before and after dustfall agent are sprayed in comparative analysis
The change of dirt grain diameter size, you can learn the dustfall agent dust-laying effect of experiment sprinkling.
Compared with prior art, the present invention has following beneficial technique effect：
The dustfall agent dust reduction rate test evaluation device of the present invention can be carried out to the dustfall efficiency of different types of dustfall agent
Test evaluation, can be before being studied or using different dustfall agents, and the dustfall agent dust reduction rate test evaluation for passing through the present invention is filled
Put and measured in advance is carried out to the dustfall efficiency of dustfall agent, it is determined that the high low degree of gained dustfall agent dustfall efficiency, so can root
According to different dustfall agents are needed to use, by test, dust-laying effect preferably can just be amplified experiment, progressively applied to reality
Border needs all places of depositing dust, and there is the present invention convenient processing and maintenance, simple in construction, easy to operate, test data accurately may be used
Lean on, the advantages of operating efficiency is high.
Further, filter screen is set to prevent the dust for being deposited in bottom of device from being acted in wind-force above dust collecting box
It is lower to be blown afloat repeatedly, improve the accuracy of measurement result.
Further, the present invention uses rotating cylinder as sprayed from ducts device, and rotating cylinder is provided with some holes, and this sets energy
It is enough more uniformly by sprayed from ducts in the inner space of the housing.
Further, three laser dust concentration and particle size determination instrument equidistant placement be on the downside of sprayed from ducts device, and three
In the projection of individual laser dust concentration and particle size determination instrument, angle is 120 ° between adjacent projection, is formed and intersects measuring point, makes survey
Try data more comprehensively reliable.
The inventive method sprays powder before and after dustfall agent by laser dust concentration and the data of particle size determination instrument, comparative analysis
The change of dust concentration and dust granules particle size, you can learn experiment sprinkling dustfall agent dust-laying effect how so that quickly
Depositing dust place needed for being adapted to effectively is selected, dust-laying effect is good, environmentally friendly, efficient dustfall agent.
Brief description of the drawings
Fig. 1 is the structural representation of apparatus of the present invention.
Wherein, 1. end cap；2. shell；3. rotating cylinder；4. dustfall agent reserve room；5. compression pump；6. air blower；7. dust is filtered
Net；8. motor；9. dust collecting box；10. first laser dust concentration and particle size determination instrument；11. second laser dust concentration and
Particle size determination instrument；12. the 3rd laser dust concentration and particle size determination instrument；13. dustfall agent shower nozzle.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings：
Referring to Fig. 1, a kind of dustfall agent dust reduction rate test evaluation device includes the shell 2 of cylinder, shell 2 is provided with outer
Wiring, for connecting interior drum 3 and external motor 8；The intraoral wall of the bottom pyramidal of shell 2 is provided with two groups of wind that dust sticks out
Power input unit, i.e. air blower 6, are capped top end cover 1 after dust input, motor 8 drives rotating cylinder 3 to make particulate dust continuous rolling
Circulation is formed, uniform floating dust is produced；Dustfall agent shower nozzle 13 is provided with the superjacent air space of shell 2, dustfall agent shower nozzle 13 is stored up with dustfall agent
Standby room 4 is connected, and the output channel between dustfall agent shower nozzle 13 and dustfall agent reserve room 4 is provided with compression pump 5；Compression pump 5 is each
At laser dust concentration and particle size determination instrument test data close to (dust is uniformly distributed) when open；The bottom of shell 2 is provided with dust
Filter screen 7, the lower section of dust filter screen 7 is provided with dust collecting box 9, and dust filter screen 7 and dust collecting box 9 are detachable capable of washing, outside
The material of shell 2, end cap 1 and conical opening is glass or light plastic.
It is connected with dustfall agent reserve room 4 on output pipe, output pipe and is provided with compression pump 5, and output pipe and drop
Dirt agent shower nozzle 13 is connected, and output pipe is provided with the controlling switch that controllable dustfall agent shower nozzle 13 opens quantity and spray rate；
The controlling switch in first laser dust concentration and particle size determination instrument 10, second laser dust concentration and particle size determination instrument 11 and
It can be opened when the 3rd laser dust concentration and the close dust concentration test data of particle size determination instrument 12, the drive device is
Motor 8, power of motor is adjustable.
Three laser dust concentration and particle size determination instrument on shell 2 are located at below sprayed from ducts device respectively, equidistant cloth
Put, three laser dust concentration and particle size determination instrument angle form in 120 ° of deciles and intersect measuring point, make test data more during vertical view
It is comprehensively reliable.Laser dust concentration and particle size determination instrument are provided with data output USB interface, can connect computer data terminal, real
When observe data, draw change curve, data can unloading, it is simple to operate, that is, stop to open.
Rotating cylinder 3 is connected by axle with the output end of motor 8, and the wall of rotating cylinder 3 is provided with countless intensive holes, to prevent particle uneven
The even error caused；Dust input refers to be put into dust in rotating cylinder 3 in test device operation front opening top end cover 1.
Two groups of air blowers 6 are separately positioned on the corresponding both sides of bottom pyramidal mouthful, can form air circulation, dust granules is begun
End is in suspended state, approaches and is uniformly distributed in the inner upper of shell 2.
When using：
1st, computer and test evaluation device total power switch are opened, connection computer and laser dust concentration and particle diameter are surveyed
Determine instrument, open DAS interface, prepare operation.
2nd, in order that particulate dust can be dispersed in inside shell 2, top end cover 1 is first opened before test, will be certain
The particulate dust of quality loads in rotating cylinder 3, closes top end cover 1, opens motor 8, and motor 8 drives the rotating cylinder with netted hole
3 rotations, regulation motor power, control rotating speed is first opened two groups of bottom air blower 6, made at 120r/min or so (low-speed running)
The dust come is kicked up by rotating cylinder 3 and is suspended in the inner upper of shell 2, adjustment rotating speed forms air circulation, and dust granules can be short
It is more uniform in time to be distributed in inside whole cylindrical shell.
3rd, dust concentration data are observed, treat that data are close at 3 laser dust concentration and particle size determination instrument or keep basic
When constant, compression pump 5 is adjusted, when the pressure is shown as 4MPa or so on pressure gauge, the motor 8 of closing opens dustfall agent storage
13, the 5 groups of shower nozzles in standby room 4 and dustfall agent shower nozzle are opened successively, and adsorption-condensation is dispersed in the airborne dust in shell 2, it is fallen in bottom
On dust filter screen 7；Period can on computer interface 3 laser dust concentration of real-time monitored and particle size determination instrument dust concentration and
The change of dust granules particle size.
4th, by laser dust concentration and particle size determination instrument, dust concentration and dust before and after comparative analysis sprinkling dustfall agent
Grain particle size change, you can learn experiment sprinkling dustfall agent dust-laying effect how, so as to fast and effeciently select suitable
Depositing dust place needed for closing, dust-laying effect is good, environmentally friendly, efficient dustfall agent.
Claims (8)
1. a kind of dust reduction rate test evaluation device, it is characterised in that include on the shell (2) of cylinder, shell (2) inner space
Side is provided with sprayed from ducts device, and the sprayed from ducts device is connected by axle with the motor (8) on the outside of shell (2), shell (2)
Bottom be connected with conical opening, dust collecting box (9) is connected with the downside of conical opening, the interior sidewall surface of conical opening, which is provided with, to be used to make
Dustfall agent reserve room (4) is additionally provided with the outside of the equally distributed air blower of dust (6), shell (2), dustfall agent reserve room (4) is led to
The inner side that output pipe is connected to shell (2) is crossed, and compression pump (5) is provided with output pipe, compression pump (5) is provided with pressure
Table, the interior sidewall surface of shell (2) is provided with some laser dust concentration and particle size determination instrument, and laser dust concentration and particle diameter are surveyed
Determine instrument and be connected at the top of computer, shell (2) to be provided with end cap (1).
2. a kind of dust reduction rate test evaluation device according to claim 1, it is characterised in that in the interior sidewall surface of conical opening
It is arranged with two groups of air blowers (6).
3. a kind of dust reduction rate test evaluation device according to claim 1, it is characterised in that received on the downside of conical opening with dust
Dust filter screen (7) is connected between collection box (9).
4. a kind of dust reduction rate test evaluation device according to claim 1, it is characterised in that described sprayed from ducts device
For rotating cylinder (3), particulate dust is housed in rotating cylinder (3), the outside of rotating cylinder (3) is provided with some holes.
5. a kind of dust reduction rate test evaluation device according to claim 1, it is characterised in that the output on the inside of shell (2)
Some dustfall agent shower nozzles (13) are connected with pipeline.
6. a kind of dust reduction rate test evaluation device according to claim 1, it is characterised in that described laser dust concentration
With totally three, particle size determination instrument, respectively first laser dust concentration and particle size determination instrument (10), second laser dust concentration and
Particle size determination instrument (11) and the 3rd laser dust concentration and particle size determination instrument (12), three described laser dust concentration and particle diameter
Analyzer equidistant placement is on the downside of sprayed from ducts device.
7. a kind of dust reduction rate test evaluation device according to claim 6, it is characterised in that three laser dust concentration and
In the projection of particle size determination instrument, angle is 120 ° between adjacent projection.
8. a kind of dust reduction rate test evaluation method of dust reduction rate test evaluation device described in use claim 1, it is characterised in that
Comprise the following steps：
Step 1：Computer, connection computer and laser dust concentration and particle size determination instrument are opened, DAS circle is opened
Face, prepares operation；
Step 2：End cap (1) is first opened before test, particulate dust is loaded in rotating cylinder (3), end cap (1) is closed, motor is opened
(8), motor (8) drives the rotation of sprayed from ducts device, and regulation motor (8) power controls rotating speed, opens air blower (6), make by powder
Dirt flusher kicks up the dust come and is suspended in shell (2) inner upper, and adjustment rotating speed formation air circulation makes dust granules equal
It is internal that whole shell (2) is distributed in evenly；
Step 3：Dust concentration data are observed, when some laser dust concentration and particle size determination instrument data keep constant, regulation
Compression pump (5), when the pressure gauge is shown as 3~5MPa, closes motor (8), opens dustfall agent reserve room (4), absorption is dispersed in
Dust in shell (2), falls in dust collecting box (9)；Period on computer interface real-time monitored laser dust concentration and
The detection data of particle size determination instrument；
Step 4：By laser dust concentration and particle size determination instrument, dust concentration and dust before and after dustfall agent are sprayed in comparative analysis
The change of grain particle size, you can learn the dustfall agent dust-laying effect of experiment sprinkling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710318680.5A CN107036941A (en) | 2017-05-08 | 2017-05-08 | A kind of dust reduction rate test evaluation device and method |
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| CN201710318680.5A CN107036941A (en) | 2017-05-08 | 2017-05-08 | A kind of dust reduction rate test evaluation device and method |
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| CN201710318680.5A Pending CN107036941A (en) | 2017-05-08 | 2017-05-08 | A kind of dust reduction rate test evaluation device and method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807072A (en) * | 2017-10-24 | 2018-03-16 | 辽宁工程技术大学 | Diffused dust generator is expanded in rotation |
| CN108444785A (en) * | 2018-03-22 | 2018-08-24 | 王聪 | It is used to prepare the automatic grinding device of chloride ion-containing powder |
| CN108693080A (en) * | 2018-05-11 | 2018-10-23 | 南京林业大学 | A kind of experimental provision of fibre dust sedimentation mechanism research |
| CN109444003A (en) * | 2018-11-16 | 2019-03-08 | 江苏日盈电子股份有限公司 | Test equipment and test method |
| CN111337395A (en) * | 2019-10-23 | 2020-06-26 | 中国矿业大学(北京) | Method for preventing and controlling industrial dust by foam and evaluation device |
| CN111811245A (en) * | 2020-07-17 | 2020-10-23 | 蚌埠学院 | Drying device for meat products |
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| CN204330518U (en) * | 2014-12-15 | 2015-05-13 | 长沙理工大学 | A kind of dust suppressant device for evaluating performance |
| CN105067773A (en) * | 2015-08-07 | 2015-11-18 | 东南大学 | Unorganized-dust dust suppressant dust restraining rate testing and evaluating device and method |
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| CN103543242A (en) * | 2013-11-05 | 2014-01-29 | 中海油能源发展股份有限公司惠州石化分公司 | Device for testing and evaluating dust suppression rate of dust suppressant |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807072A (en) * | 2017-10-24 | 2018-03-16 | 辽宁工程技术大学 | Diffused dust generator is expanded in rotation |
| CN108444785A (en) * | 2018-03-22 | 2018-08-24 | 王聪 | It is used to prepare the automatic grinding device of chloride ion-containing powder |
| CN108444785B (en) * | 2018-03-22 | 2024-02-13 | 王聪 | Automatic grinding device for preparing powder containing chloride ions |
| CN108693080A (en) * | 2018-05-11 | 2018-10-23 | 南京林业大学 | A kind of experimental provision of fibre dust sedimentation mechanism research |
| CN108693080B (en) * | 2018-05-11 | 2024-02-02 | 南京林业大学 | Experimental device for research of fiber dust deposition mechanism |
| CN109444003A (en) * | 2018-11-16 | 2019-03-08 | 江苏日盈电子股份有限公司 | Test equipment and test method |
| CN111337395A (en) * | 2019-10-23 | 2020-06-26 | 中国矿业大学(北京) | Method for preventing and controlling industrial dust by foam and evaluation device |
| CN111337395B (en) * | 2019-10-23 | 2021-03-16 | 中国矿业大学(北京) | Method for preventing and controlling industrial dust by foam and evaluation device |
| CN111811245A (en) * | 2020-07-17 | 2020-10-23 | 蚌埠学院 | Drying device for meat products |
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Application publication date: 20170811 |