CN105067773A - Unorganized-dust dust suppressant dust restraining rate testing and evaluating device and method - Google Patents
Unorganized-dust dust suppressant dust restraining rate testing and evaluating device and method Download PDFInfo
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Abstract
The invention discloses an unorganized-dust dust suppressant dust restraining rate testing and evaluating device and a method. The unorganized-dust dust suppressant dust restraining rate testing and evaluating device mainly comprises an axial flow fan, an experiment cabin, and a measuring amount adjusting and controlling device; the measuring amount adjusting and controlling device is composed of a temperature and humidity regulator, a smoke dust sampling device, and an electrical low pressure impactor; the axial flow fan is connected with an experiment cabin high speed wind section via flexible connection; the axial flow fan is connected with the temperature and humidity regulator; the experiment cabin is divided into the experiment cabin high speed wind section, an experiment cabin wind direction adjusting section, an experiment cabin low speed section, and an experiment cabin air exhaust section along wind direction tendency; the top of the experiment cabin high speed wind section is provided with testing ports; a wind direction adjusting device is arranged between the experiment cabin wind direction adjusting section and the experiment cabin low speed section; the top of the experiment cabin low speed section is provided with a twin-fluid atomization nozzle and a material falling port, the bottom is provided with a wastewater discharge hole, and the side surface is provided with testing ports; and the smoke dust sampling device and the electrical low pressure impactor are connected with the testing ports. The unorganized-dust dust suppressant dust restraining rate testing and evaluating device is convenient and accurate for testing, is reliable, and is capable of stimulating environmental parameters accurately.
Description
One. technical field
The invention belongs to field of environmental technology, specifically refer to a kind of inorganization dust dust suppressant dust suppression rate test evaluation device.
Two. background technology
Inorganization dust emission is often referred to does not have fixed discharge facility or the dust emission below certain altitude, extensively be present in the links such as bulk cargo production, processing, transport, handling, be not only mine, all may occur in places such as building, stone pit, stockyard, harbour, thermal power plant, steel plant, cement mill, garbage reclamation process.For thermal power plant, bunker coal is easy to produce reentrainment of dust in transport, handling, storage process, stone material, cement, sand etc. that buildings needs when building, in preparation process, also can produce the respirable dust that a large amount of particle diameter is less than the uncontrollable discharge of 2.5 μm, respirable dust refers to the particle that can enter human body alveolar region of particle diameter below 2.5 μm.The feature of this kind of dust is: particle diameter is little, the surface area that compares is large, chemical activity is high, high adsorption capacity.The dust attribute produced because of different industries varies, and again by disturbances such as human factor, natural conditions, operating modes, swims for a long time and falls apart everywhere in atmosphere, adopts general technology to be difficult to effectively administer.Thus the control of the respirable dust of uncontrollable discharge just becomes the Focal point and difficult point of current relevant industries dust-proof working.
Dust suppression technology at present for inorganization dust mainly utilizes atomizer to spray dust suppressant solution, the ultra-fine dry fog that particle diameter is less than 10 μm can be produced, not only substantially increase the contact area with dust granules, also change the wettability of dust, dust is impelled to form aggregate, aggregate constantly becomes and becomes greatly heavy, until last natural subsidence, reaches the object eliminating dust.Different dust suppressants, its dust suppression efficiency how, and temporarily go back device or the system of neither one evaluation, also neither one standard specifies.
Three, summary of the invention
Goal of the invention: the object of this invention is to provide a kind of inorganization dust dust suppressant dust suppression rate test evaluation device and method, convenient test, test data are accurate, reliable operation.
Technical scheme: a kind of inorganization dust dust suppressant dust suppression rate test evaluation device, mainly comprise axial flow blower, Laboratory Module, measurement regulation device, described measurement regulation device is made up of thermo hydrograph regulator, smoke dust sampler and Electrical low pressure impactor, described axial flow blower to be connected with Laboratory Module high speed winds section by being flexible coupling, and described axial flow blower is connected with thermo hydrograph regulator; Laboratory Module is divided into Laboratory Module high speed winds section, Laboratory Module wind direction to regulate section, Laboratory Module low speed segment and Laboratory Module exhaust section along wind direction tendency, Laboratory Module high speed winds section top is provided with test port, regulate between section and Laboratory Module low speed segment at Laboratory Module wind direction and be provided with wind direction regulating device, double fluid atomization nozzle and material whereabouts mouth is provided with at Laboratory Module low speed segment top, bottom is provided with sewage discharge hole, and side is provided with test port; Described smoke dust sampler is connected with test port with Electrical low pressure impactor.
Described axial flow blower is the adjustable frequency conversion fan of wind speed.
Described Laboratory Module high speed winds segment length is 0.5-2.0m, is highly 0.5 times of low speed segment.Laboratory Module low speed segment length is 0.5-1.5m, and Laboratory Module length is 1.0-3.5m, is highly 0.5-1.0m.
Described wind direction regulating device is inside and outside two-layer mutually vertical in latticed loose-leaf composition.
Described double fluid atomization nozzle is connected with dust suppressant make-up tank, air compressor machine.
Based on the test evaluation method of described inorganization dust dust suppressant dust suppression rate test evaluation device, by the air-flow wind speed of frequency modulator regulating shaft flow fan, the humiture of Laboratory Module is regulated by thermo hydrograph regulator, air-flow enters Laboratory Module by being flexible coupling, during high wind speed test evaluation, experiment dust is placed in experiment bin high speed winds section front end, after experiment dust sprays dust suppressant, by test port, blow over the wind speed of experiment dust, total dirt and particle size distribution with smoke dust sampler, Electrical low pressure impactor test experiments wind speed respectively, in low wind speed test evaluation time, air-flow passes through wind direction regulating device via Laboratory Module high speed winds section, uniform stream is made to enter experiment bin low speed segment, first do not add dust suppressant and spray into by the double fluid atomization nozzle at top the mixing of materials that liquid and top material whereabouts mouth enter, pass through test port, use smoke dust sampler respectively, Electrical low pressure impactor test experiments wind speed blows over the wind speed of material, total dirt, and particle size distribution, sewage is discharged by the sewage discharge hole bottom experiment bin low speed segment, air-flow is finally discharged through Laboratory Module exhaust section, again under same duty, convert different dust suppressants and spray into the efficiency of testing different dust suppressant via double fluid atomization nozzle.
Beneficial effect:
(1) the dust suppressant dust suppression rate test evaluation device that the present invention proposes can simulate the parameter under different physical environment, makes the evaluation of dust suppressant more realistic.
(2) efficiency of different dust suppressants is evaluated, before research or using different dust suppressants, the mensuration can being undertaken in advance by the dust suppression efficiency of dust suppressant dust suppression rate test evaluation device of the present invention to dust suppressant, can use different dust suppressants so as required.
Four, accompanying drawing explanation
Fig. 1 is apparatus structure schematic diagram of the present invention
In figure: 1-axial flow blower; 2-experiment bin high speed winds section; 3-wind direction regulating device; 4-experiment bin low speed segment; 5-experiment bin exhaust section; 6-thermo hydrograph regulator; 7-flue gas sampling instrument; 8-Electrical low pressure impactor; 9-double fluid atomization nozzle.
Five, embodiment
For the ease of the understanding of those skilled in the art, below in conjunction with accompanying drawing 1, structural principle of the present invention is described in further detail:
A kind of dust suppressant dust suppression rate test evaluation device, described axial flow blower 1 is frequency modulation blower fan, by frequency modulator self rotating speed adjustable, axial flow blower 1 to be connected with experiment bin high speed winds section 2 by being flexible coupling, the temperature of experiment bin is regulated by the thermo hydrograph regulator 6 be connected, humidity, when under high speed winds, during as tested under more than 8 grades wind speed, can by manually placing experiment dust in experiment bin high speed winds section 2 front end, at the test port arranged in Laboratory Module high speed winds section 2, use smoke dust sampler 7 respectively, Electrical low pressure impactor 8 tests the wind speed that certain wind speed blows over dump, total dirt, and particle size distribution.Laboratory Module high speed winds section 2 connects Laboratory Module wind direction below successively and regulates section, experiment bin low speed segment 4 and Laboratory Module exhaust section 5.Laboratory Module low speed segment and Laboratory Module wind direction regulate between section and are provided with wind direction regulating device 3, uniform stream is made to enter experiment bin low speed segment 4, double fluid atomization nozzle 9 and material whereabouts mouth is provided with at its top, double fluid atomization nozzle 9 is connected with dust suppressant make-up tank, air compressor machine, the spraying parameter of nozzle can be regulated, be provided with sewage discharge hole bottom experiment bin low speed segment 4, side is provided with gaging hole, and air-flow is finally discharged through Laboratory Module exhaust section 5.Experiment bin is made up of organic glass, makes test be convenient to observe.
Wherein Laboratory Module high speed winds section 2 length is 0.5-2.0m, and Laboratory Module low speed segment 4 length is 0.5-1.5m, and the length of whole Laboratory Module is 1.0-3.5m.
Described axial flow blower 1 is the adjustable frequency conversion fan of wind speed, can produce the wind speed of 0 ~ 30m/s, can the wind speed of 0 ~ 7 grade in simulated environment.
Wind direction regulating device 3 is provided with before described experiment bin low speed segment 4.
Described measurement regulation device is made up of thermo hydrograph regulator 6, smoke dust sampler 7, Electrical low pressure impactor 8.
Described nozzle 9 is double fluid atomization nozzle.
Based on the test evaluation method of described inorganization dust dust suppressant dust suppression rate test evaluation device, by the air-flow wind speed of frequency modulator regulating shaft flow fan, the humiture of Laboratory Module is regulated by thermo hydrograph regulator, air-flow enters Laboratory Module by being flexible coupling, during high wind speed test evaluation, experiment dust is placed in experiment bin high speed winds section front end, after experiment dust sprays dust suppressant, by test port, blow over the wind speed of experiment dust, total dirt and particle size distribution with smoke dust sampler, Electrical low pressure impactor test experiments wind speed respectively, in low wind speed test evaluation time, air-flow passes through wind direction regulating device via Laboratory Module high speed winds section, uniform stream is made to enter experiment bin low speed segment, first do not add dust suppressant and spray into by the double fluid atomization nozzle at top the mixing of materials that liquid and top material whereabouts mouth enter, pass through test port, use smoke dust sampler respectively, Electrical low pressure impactor test experiments wind speed blows over the wind speed of material, total dirt, and particle size distribution, sewage is discharged by the sewage discharge hole bottom experiment bin low speed segment, air-flow is finally discharged through Laboratory Module exhaust section, again under same duty, convert different dust suppressants and spray into the efficiency of testing different dust suppressant via double fluid atomization nozzle.
Principle of work of the present invention is: the material that needs detect is put into the screw feeder above the mouth of material whereabouts, material is made freely to fall into experiment bin low speed segment 4, axial flow blower 1 works with certain wind speed, regulating shaft flow fan rotating speed can be needed according to test, general about fresh breeze, in experiment bin low speed segment 4, humiture is regulated by thermo hydrograph regulator 6, do not using under dust suppressant duty, adopting the total dirt in smoke dust sampler 7, Electrical low pressure impactor 8 difference experiments of measuring storehouse low speed segment 4 and PM
2.5; Keep operating mode constant, by double fluid atomization nozzle variety classes dust suppressant, total dirt and PM in experiments of measuring storehouse low speed segment 4
2.5; By not using dust suppressant and using total dirt and PM after dust suppressant not of the same race
2.5, the dust suppression efficiency of the dust suppressant of sprinkling can be recorded.
The above, be only preferred embodiment of the present invention, not does any pro forma restriction to the present invention; The those of ordinary skill of all industry all can shown in by specification accompanying drawing and the above and implement the present invention swimmingly; But all those skilled in the art are not departing within the scope of technical solution of the present invention, disclosed above technology contents can be utilized and make a little change, modify with differentiation equivalent variations, be Equivalent embodiments of the present invention; Meanwhile, all according to substantial technological of the present invention to the change of any equivalent variations made for any of the above embodiments, modify and differentiation etc., within the protection domain all belonging to technical scheme of the present invention.
Claims (6)
1. an inorganization dust dust suppressant dust suppression rate test evaluation device, it is characterized in that, mainly comprise axial flow blower (1), Laboratory Module, measurement regulation device, described measurement regulation device is made up of thermo hydrograph regulator (6), smoke dust sampler (7) and Electrical low pressure impactor (8), described axial flow blower to be connected with Laboratory Module high speed winds section (2) by being flexible coupling, and described axial flow blower (1) is connected with thermo hydrograph regulator (6); Laboratory Module is divided into Laboratory Module high speed winds section (2), Laboratory Module wind direction to regulate section, Laboratory Module low speed segment (4) and Laboratory Module exhaust section (5) along wind direction tendency, Laboratory Module high speed winds section (2) top is provided with test port, regulate between section and Laboratory Module low speed segment (4) at Laboratory Module wind direction and be provided with wind direction regulating device (3), double fluid atomization nozzle (9) and material whereabouts mouth is provided with at Laboratory Module low speed segment (4) top, bottom is provided with sewage discharge hole, and side is provided with test port; Described smoke dust sampler (7) is connected with test port with Electrical low pressure impactor (8).
2. inorganization dust dust suppressant dust suppression rate test evaluation device according to claim 1, it is characterized in that, described axial flow blower (1) is the adjustable frequency conversion fan of wind speed.
3. inorganization dust dust suppressant dust suppression rate test evaluation device according to claim 1, it is characterized in that, described Laboratory Module high speed winds section (2) length is 0.5-2.0m, is highly 0.5 times of low speed segment.Laboratory Module low speed segment (4) length is 0.5-1.5m, and Laboratory Module length is 1.0-3.5m, is highly 0.5-1.0m.
4. inorganization dust dust suppressant dust suppression rate test evaluation device according to claim 1, is characterized in that, described wind direction regulating device (3) is for inside and outside two-layer mutually vertical in latticed loose-leaf composition.
5. inorganization dust dust suppressant dust suppression rate test evaluation device according to claim 1, it is characterized in that, described double fluid atomization nozzle (9) is connected with dust suppressant make-up tank, air compressor machine.
6. based on the test evaluation method of the arbitrary described inorganization dust dust suppressant dust suppression rate test evaluation device of Claims 1 to 5, it is characterized in that, by the air-flow wind speed of frequency modulator regulating shaft flow fan (1), the humiture of Laboratory Module is regulated by thermo hydrograph regulator (6), air-flow enters Laboratory Module by being flexible coupling, during high wind speed test evaluation, experiment dust is placed in experiment bin high speed winds section (2) front end, after experiment dust sprays dust suppressant, pass through test port, use smoke dust sampler (7) respectively, Electrical low pressure impactor (8) test experiments wind speed blows over the wind speed of experiment dust, total dirt, and particle size distribution, in low wind speed test evaluation time, air-flow via Laboratory Module high speed winds section (2) by wind direction regulating device (3), uniform stream is made to enter experiment bin low speed segment (4), first do not add dust suppressant and spray into by the double fluid atomization nozzle (9) at top the mixing of materials that liquid and top material whereabouts mouth enter, pass through test port, use smoke dust sampler (7) respectively, Electrical low pressure impactor (8) test experiments wind speed blows over the wind speed of material, total dirt, and particle size distribution, sewage is discharged by the sewage discharge hole of experiment bin low speed segment (4) bottom, air-flow is finally discharged through Laboratory Module exhaust section (5), again under same duty, convert different dust suppressants sprays into test different dust suppressant efficiency via double fluid atomization nozzle (9).
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Cited By (14)
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| CN105717037A (en) * | 2016-02-04 | 2016-06-29 | 东南大学 | Haze-environment-simulating experimental device for insulator contamination accumulation characteristics and operation method thereof |
| CN105823724A (en) * | 2016-06-08 | 2016-08-03 | 沈阳工业大学 | Experimental device for simulating haze environment and data monitoring system thereof |
| CN106178803A (en) * | 2016-07-29 | 2016-12-07 | 国电新能源技术研究院 | A kind of remove the method for fine particle in gas phase mixture |
| CN106178804A (en) * | 2016-07-29 | 2016-12-07 | 国电新能源技术研究院 | A kind of remove the system of fine particle in gas phase mixture |
| CN106841300A (en) * | 2017-03-24 | 2017-06-13 | 上海化工研究院有限公司 | A kind of Combined industry dust explosion analog demenstration system |
| CN107036941A (en) * | 2017-05-08 | 2017-08-11 | 陕西科技大学 | A kind of dust reduction rate test evaluation device and method |
| CN108223001A (en) * | 2017-12-06 | 2018-06-29 | 山东科技大学 | Detect the precise determination device and assay method of different model nozzle dustfall efficiency |
| CN108801582A (en) * | 2018-08-31 | 2018-11-13 | 天津大学 | Anti-wind net dust suppression mechanism demonstrating experiment device and its experimental method |
| CN109085102A (en) * | 2018-11-05 | 2018-12-25 | 辽宁工程技术大学 | A kind of dust suppressant wind resistance test macro and method |
| CN109239262A (en) * | 2018-08-21 | 2019-01-18 | 安徽理工大学 | A kind of Coal Dust Restrainer, dust suppression rate test device and its working method |
| CN109342693A (en) * | 2018-10-23 | 2019-02-15 | 湖南科技大学 | A kind of soil solidification dust suppression experiment porch |
| CN109690286A (en) * | 2016-08-24 | 2019-04-26 | 福斯油品欧洲股份公司 | Inhibit the test equipment and method of system for test dust |
| CN110196149A (en) * | 2019-06-17 | 2019-09-03 | 桂林电子科技大学 | A kind of test device of fugitive dust concentration and wind speed and angular relationship |
| CN111141648A (en) * | 2020-01-06 | 2020-05-12 | 天津理工大学 | Experimental device for be used for testing static dust effect of inhibitor control |
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Cited By (20)
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| CN105717037A (en) * | 2016-02-04 | 2016-06-29 | 东南大学 | Haze-environment-simulating experimental device for insulator contamination accumulation characteristics and operation method thereof |
| CN105823724A (en) * | 2016-06-08 | 2016-08-03 | 沈阳工业大学 | Experimental device for simulating haze environment and data monitoring system thereof |
| CN105823724B (en) * | 2016-06-08 | 2018-08-31 | 沈阳工业大学 | A kind of experimental provision and its data monitoring system of simulation haze environment |
| CN106178803A (en) * | 2016-07-29 | 2016-12-07 | 国电新能源技术研究院 | A kind of remove the method for fine particle in gas phase mixture |
| CN106178804A (en) * | 2016-07-29 | 2016-12-07 | 国电新能源技术研究院 | A kind of remove the system of fine particle in gas phase mixture |
| CN109690286A (en) * | 2016-08-24 | 2019-04-26 | 福斯油品欧洲股份公司 | Inhibit the test equipment and method of system for test dust |
| CN109690286B (en) * | 2016-08-24 | 2022-05-24 | 福斯油品欧洲股份公司 | Test equipment and method for testing dust suppression system |
| US11029239B2 (en) | 2016-08-24 | 2021-06-08 | Fuchs Petrolub Se | Test apparatus and method for testing dust suppression systems |
| CN106841300A (en) * | 2017-03-24 | 2017-06-13 | 上海化工研究院有限公司 | A kind of Combined industry dust explosion analog demenstration system |
| CN106841300B (en) * | 2017-03-24 | 2020-04-28 | 上海化工研究院有限公司 | Combined industrial dust explosion simulation demonstration system |
| CN107036941A (en) * | 2017-05-08 | 2017-08-11 | 陕西科技大学 | A kind of dust reduction rate test evaluation device and method |
| CN108223001A (en) * | 2017-12-06 | 2018-06-29 | 山东科技大学 | Detect the precise determination device and assay method of different model nozzle dustfall efficiency |
| CN109239262A (en) * | 2018-08-21 | 2019-01-18 | 安徽理工大学 | A kind of Coal Dust Restrainer, dust suppression rate test device and its working method |
| CN109239262B (en) * | 2018-08-21 | 2022-01-11 | 安徽理工大学 | Coal dust suppressant, dust suppression rate testing device and working method thereof |
| CN108801582A (en) * | 2018-08-31 | 2018-11-13 | 天津大学 | Anti-wind net dust suppression mechanism demonstrating experiment device and its experimental method |
| CN109342693A (en) * | 2018-10-23 | 2019-02-15 | 湖南科技大学 | A kind of soil solidification dust suppression experiment porch |
| CN109085102A (en) * | 2018-11-05 | 2018-12-25 | 辽宁工程技术大学 | A kind of dust suppressant wind resistance test macro and method |
| CN109085102B (en) * | 2018-11-05 | 2023-10-20 | 辽宁工程技术大学 | Dust suppressant wind resistance performance test system and method |
| CN110196149A (en) * | 2019-06-17 | 2019-09-03 | 桂林电子科技大学 | A kind of test device of fugitive dust concentration and wind speed and angular relationship |
| CN111141648A (en) * | 2020-01-06 | 2020-05-12 | 天津理工大学 | Experimental device for be used for testing static dust effect of inhibitor control |
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Address after: 210093 Nanjing University Science Park, 22 Hankou Road, Gulou District, Nanjing City, Jiangsu Province Patentee after: Southeast University Address before: 211103 No. 59 Wan'an West Road, Dongshan Street, Jiangning District, Nanjing City, Jiangsu Province Patentee before: Southeast University |