CN105727673A - Intermittent gas-solid separation and solid collection system - Google Patents
Intermittent gas-solid separation and solid collection system Download PDFInfo
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- CN105727673A CN105727673A CN201610136605.2A CN201610136605A CN105727673A CN 105727673 A CN105727673 A CN 105727673A CN 201610136605 A CN201610136605 A CN 201610136605A CN 105727673 A CN105727673 A CN 105727673A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
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- Chemical Kinetics & Catalysis (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses an intermittent gas-solid separation and solid collection system. The system comprises a gas-solid separator, a small dust collection cup, a small dust collection cup lifting device, a fan, an airflow regulation valve, a flared cover, an oscillator, a support, a plastic hose, a control line and a numerical control system. The gas-solid separator comprises a gas inlet, a gas outlet, a discharging port, a gas-solid separation chamber, a screen and a chamber hood. The intermittent gas-solid separation and solid collection system has the advantages of structural simplicity, high automation level, convenience in mounting, utilization and maintenance, high dust collection efficiency and low powder mixing degree; in addition, automatic efficient intermittent powder collection can be realized to make it convenient for subsequent targeted experimental researches on powder.
Description
Technical field
The invention belongs to field of machinery automation, particularly relate to a kind of intermittent gas solid separation and solids collection system, specifically, concrete powder grinding machine can be coordinated to realize cement-base composite material test specimen successively pulverizing, collection, and the mixed powder between each layer powder can be prevented effectively from.
Background technology
For quantifying the etching medium impact on cement-base composite material (such as concrete) performance degradation, it is necessary to obtain the content of intrinsic silicon different depth etching medium by experiment；Numerous existing Experimental Procedures (JT270-98, JGJT322, SL352 etc.) all specify, the water intaking sample of cement-based composite material different depth is also clayed into power, by chemical analysis analytical calculation, obtain the content of the chloride ion of different depth, sulfate ion in matrix.
Flour mill sampling method is by the common method of cement-base composite material successively powder process, and the patent related to is as follows with equipment: the high-end turbulent flow vibrating grinder of CN101138745A-, CN101264460B-sander for concrete powder, the ProfileGrinder of Denmark.Concrete can be ground refinement by these equipment, it is also possible to realize from matrix surface successively pulverizing, but the powder that equipment grinds needs manually constantly to collect, and during equipment work, dust is very big, is unfavorable for healthy.
Existing numerous dust-precipitator and gas-solid separating device, the patent related to is as follows: CN201520488779-dust-precipitator, CN200880018231-gas-solid separator, CN201210424904-gas-solid separation equipment, CN201210215186-filter bag gas-solid separator and gas-solid separating method thereof.These equipment can effectively realize gas solid separation, but the powder after separating is bonded at separator interior, it is impossible to carry out automatically collecting separating sampling, and individual plants is bulky.Accordingly, it would be desirable to a kind of intermittent gas solid separation and solids collection system, coordinate concrete powder grinding machine to realize cement-base composite material test specimen successively pulverizing is sampled, airborne dust can be absorbed, realize gas solid separation, again can intermittent automatic collection separate after powder body.
Summary of the invention
The invention solves when utilizing flour mill successively pulverizing cement based composites, it is necessary to manual collection powder, automaticity is low, and this process airborne dust is relatively big, the problem that harm experimenter is healthy.
For solving above-mentioned technical problem, the invention discloses a kind of intermittent gas solid separation and solids collection system, coordinate concrete powder grinding machine to realize cement-base composite material test specimen successively pulverizing is sampled, airborne dust can be absorbed and realize gas solid separation, intermittent can automatically collect the powder body after separating again.
The invention provides a kind of intermittent gas solid separation and solids collection system, including gas-solid separator, dust cuvette, dust cuvette lowering or hoisting gear, horn cover, barometric damper, electromagnetic vibrator, blower fan, support, plastic flexible pipe, control line and digital control system；
Described gas-solid separator includes air inlet, gas outlet, discharging opening, gas solid separation storehouse, screen cloth and storehouse cover；Described storehouse cover is positioned at above gas solid separation storehouse, and screen cloth is between gas solid separation storehouse and storehouse are covered；Top, described gas solid separation storehouse is cylindrical, and bottom is cone-shaped；Described air inlet is positioned at the side of the bottom cone in gas solid separation storehouse, and gas outlet is positioned at the side of storehouse cover, and discharging opening is positioned at the underface in gas solid separation storehouse；Wherein, gas solid separation storehouse, screen cloth and storehouse cover are coaxially disposed；
Described gas-solid separator is fixed on support, the discharging opening of bottom can with dust cuvette intermittent contact, the side of gas solid separation storehouse upper cylinder is close to by electromagnetic vibrator, described air inlet is connected with horn cover by the plastic flexible pipe of smooth inner wall, described gas outlet is connected with blower fan by plastic flexible pipe, equipped with barometric damper between gas outlet and blower fan, described digital control system is connected with dust cuvette lowering or hoisting gear, electromagnetic vibrator, blower fan respectively by control line.
Described gas-solid separator and dust cuvette are stainless steel material or rigid plastics.
The internal diameter Φ 2～6cm of described air inlet, gas outlet and discharging opening, external diameter Φ 2.2～8cm, thickness is d0.2～2cm；Described air inlet slant setting, with 10 °～50 ° of the horizontal plane angle of cut.
Described gas solid separation storehouse cylinder inner diameter Φ 10～30cm, external diameter Φ 10.2～32cm, thickness is d0.2～2cm；Described gas solid separation storehouse cylinder height h1=5～20cm, gas solid separation storehouse bottom cone is height h vertically2=5～20cm.
The order number of described screen cloth is 200～800, and corresponding aperture is 15～80 μm.
Described air inlet is positioned at the bottom of gas solid separation storehouse cone as far as possible；Described gas solid separation storehouse, air inlet and discharging opening inner wall smooth, weld should process through sanding and polishing.
The present invention is under the control of digital control system, and monolayer powder body separates, collection process can be divided into dust suction operation, shake operation and transition operation.Dust suction operation: digital control system is by controlling dust cuvette lowering or hoisting gear, jack-up dust cuvette, sealed discharging mouth；Meanwhile, digital control system controls to start blower fan；During this operation, the gas containing powder enters from air inlet, separates in gas-solid separator.Vibrations operation: digital control system controls to close blower fan；And by controlling dust cuvette lowering or hoisting gear, fall dust cuvette；Meanwhile, digital control system controls electromagnetic vibrator, starting shock function；During this operation, the powder body in gas-solid separator drops down onto in dust cuvette.Transition operation: digital control system controls electromagnetic vibrator, closes vibration function；During this operation, the powder body in dust cuvette is loaded seal in bag to be measured, subsequently enter next time gas solid separation, collection process.
The action principle of gas-solid separator of the present invention is: the gas containing powder body enters from air inlet, run up from gas solid separation storehouse bottom cone, owing to gas solid separation storehouse sectional area is relatively big and little top, bottom is big, gas flow rate constantly reduces, and powder body settles under inertia and action of gravity；When gas is by screen cloth, gas solid separation occurring further, diameter of particle is more than the bottom that is partially left at of mesh size, and what particle diameter was less is partially into storehouse cover, enters blower fan finally by plastic flexible pipe and separates further.
Screen cloth in the present invention is field-replaceable unit, it is possible to selects the screen cloth in suitable aperture according to flour mill powder diameter, should regularly replace screen cloth in use procedure.
Advantages of the present invention: simple in construction, automaticity is high, installs, uses, easy to maintenance, and dust-collecting efficiency is high, and mixed powder degree is low.Efficiently can collect powder body by automatic intermittent, facilitate and follow-up powder body pin is carried out experimentation.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of gas solid separation of the present invention and solids collection system.
Fig. 2 is each parts exploded perspective view of gas-solid separator of the present invention.
Fig. 3 is the body sections schematic diagram of gas-solid separator of the present invention.
Fig. 4 is the action principle schematic diagram of gas-solid separator of the present invention.
Being specifically labeled as in Fig. 1～4: 1 storehouse cover, 2 gas solid separation storehouses, 3 air inlets, 4 plastic flexible pipes, 5 horn covers, 6 discharging openings, 7 dust cuvettes, 8 dust cuvette lowering or hoisting gears, 9 gas outlets, 10 electromagnetic vibrators, 11 barometric dampers, 12 blower fans, 13 digital control systems, 14 supports, 15 control lines, 16 screen clothes.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
As shown in figures 1-4, intermittent gas solid separation of the present invention includes gas-solid separator, dust cuvette 7, dust cuvette lowering or hoisting gear 8, blower fan 12, barometric damper 11, horn cover 5, electromagnetic vibrator 10, support 14 and digital control system 13 with solids collection system, and gas-solid separator includes storehouse cover 1, gas solid separation storehouse 2, air inlet 3, discharging opening 6, gas outlet 9 and screen cloth 16.
Gas-solid separator is fixed on support 14；Under the effect of dust cuvette lowering or hoisting gear 8, the discharging opening 6 bottom gas-solid separator can with dust cuvette 7 intermittent contact；Electromagnetic vibrator 10 is tightly positioned at gas-solid separator 2 side.Air inlet 3 is positioned at the side of the bottom cone in gas solid separation storehouse 2, and gas outlet 9 is positioned at the side of storehouse cover 1, and discharging opening 6 is positioned at the lower section in gas solid separation storehouse；Bottom, gas solid separation storehouse 2 is cone-shaped, is connected with air inlet 3, discharging opening 9；Top, gas solid separation storehouse 2 is cylindrical, is connected with screen cloth 16, storehouse cover 1；Screen cloth 16 covers between 1 in gas solid separation storehouse 2 and storehouse, and storehouse cover 1 is positioned at above gas solid separation storehouse 2.Wherein, gas solid separation storehouse 2, screen cloth 16 are coaxially disposed with storehouse cover 1.
Digital control system 13 directly controls blower fan 12, electromagnetic vibrator 10 and dust cuvette lowering or hoisting gear 8 by control line 15, realize intermittent gas solid separation and solid collection action: during dust suction operation, jack-up dust cuvette 5, sealed discharging mouth 4, start blower fan 12, gas containing powder passes through horn cover 5, plastic flexible pipe 4, and enter from air inlet 3, separate in gas-solid separator；During vibrations operation, closing blower fan 12, fall dust cuvette 5, start the vibration function of electromagnetic vibrator 10, the powder body in gas-solid separator drops down onto in dust cuvette 5；During transition operation, close the vibration function of electromagnetic vibrator 10, the powder body in dust cuvette 7 is loaded seal in bag to be measured, and enter next time gas solid separation, automatically collect operation.
The action principle of gas-solid separator is: the gas containing powder body enters from air inlet, run up from gas solid separation storehouse bottom cone, owing to gas solid separation storehouse sectional area is relatively big and little top, bottom is big, gas flow rate constantly reduces, and powder body settles under gravity；When gas is by screen cloth, gas solid separation occurring further, diameter of particle is more than the bottom that is partially left at of mesh size, and what particle diameter was less is partially into storehouse cover, enters blower fan finally by plastic flexible pipe and discharges.
Screen cloth in the present invention is field-replaceable unit, it is possible to selects the screen cloth in suitable aperture according to flour mill powder diameter, should regularly replace screen cloth in use procedure.
Obviously, the examples detailed above of the present invention is only used to clearly demonstrate example of the present invention, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here cannot all of embodiment be given exhaustive.Every belong to apparent change that technical scheme amplified out or the variation row still in protection scope of the present invention.
Embodiment
A kind of intermittent gas solid separation of processing and solids collection system, concrete material is as follows with parameter:
Gas-solid separator and dust cuvette are stainless steel material.The air inlet of gas-solid separator and gas outlet internal diameter 3cm, external diameter 3.5cm, discharging opening internal diameter 3cm, external diameter 4cm, gas solid separation storehouse upper cylinder internal diameter 20cm, external diameter 21cm, high 10cm, bottom, gas solid separation storehouse cone is height 15cm vertically, gas-solid separator storehouse cover internal diameter 20cm, external diameter 21cm, high 6cm, screen cloth 500 order, air inlet and horizontal sextant angle 45o；Dust cuvette internal diameter 5cm, external diameter 7cm, high 8cm, base thickness 1cm, select simple and easy butterfly shape air-flow to regulate valve, ventilator selection centrifugal exhauster (power 1400W), select electromagnetism hopper wall vibrator (model C Z100, power 100W).
Operating mode is set by digital control system: dust suction operation 1.5min, controls jack-up dust cuvette, sealed discharging mouth, and start blower fan；Vibrations operation 1min, closes blower fan, falls dust cuvette starting shock function；Pack operation 0.5min, closes vibration function, the powder body in dust cuvette is loaded sample sack to be detected；Dust suction operation 1.5min+ shakes operation 1min+ transition operation 0.5min loop cycle operation.
Concrete operations are as follows: started the intermittent gas solid separation in the present invention and solids collection system by digital control system, start dust suction operation, operation flour mill grinding test block is (such as during this period, concrete long cube test block), monolayer grinding thickness, powder body and airborne dust are set and enter gas solid separation storehouse by horn cover, plastic flexible pipe and air inlet；At powder body inertia, gravity under the effect of screen cloth, gas-solid separates；After 1.5min, entering vibrations operation, now stop grinding test block, digital control system controls to close blower fan, falls dust cuvette starting shock function, and the powder body in gas solid separation storehouse all falls into dust cuvette；After 1min, stop vibration function, manually the powder body in dust cuvette is transferred in sample sack；Next one circulation is entered after 0.5min.
Evaluate two important indicators of this equipment be powder rate and powder purity: powder rate when referring to grinding specific thicknesses, the actual ratio collecting powder quality and test block abrasion quality；The residual powder body pollution level to follow-up powder body in powder purity reflection warehouse, the pollution level of the more big correspondence of powder purity is more little.
Confirmatory experiment: take the concrete test block 40mm*40mm*100mm, sectional area A=40*40mm after two pieces of drying2；The match ratio of test block is: cement 433kg/m3, sand 587kg/m3, stone 1139kg/m3, water 195kg/m3；One piece of aggressivity chloride ion (concentration range: 0～0.8% radially constantly reduces) containing certain concentration, another block is then entirely free of chloride ion；Utilize flour mill to replace grinding two test block, each grinding ten layers, each grinding 0.5mm, utilize equipment in the present invention automatically to collect powder body.
Data process: by the thickness d of the actual grinding of vernier caliper measurement every layeri, weigh every layer of powder quality m collected by the present inventionri, measure chloride ion actual content c in powder body with reference to the chemical analysis in code JT270-98i.By the actual grinding thickness d of monolayeri, sectional area A and actual density ρ, convert theoretical powder amount mti=di* A* ρ, and calculate actual powder rate Q furtheri=mri/mti=mti/(di*A*ρ)；According to chloride mass-balance law, it is possible to calculate the powder purity (numbering 1 and 2 is a group, and numbering 3 and 4 is a group) being numbered even number, be calculated as example, P with the powder purity of numbering 22=(1-c2/c1) * 100%.
Table 1 obtains powder rate and powder purity checking test
Utilizing heretofore described equipment to coordinate concrete powder grinding machine that cement-base composite material test specimen carries out successively pulverizing sampling, by experimental data it can be seen that the average powder rate that obtains of test process is 96.4%, powder purity is 98.1%.Only have the powder body loss rate less than 4.0%, it is ensured that whole experimentation airborne dust is less, it is provided that almost without the experimental situation of airborne dust；, also ensure that when monolayer grinding thickness is little as far as possible meanwhile, remain to obtain abundant powder body and carry out experiment test.Powder purity is up to 98.1%, and corresponding mixed powder degree, less than 2.0%, illustrates that the mutual pollution level between each layer powder body is smaller, guarantees subsequent experimental precision to greatest extent.
Claims (6)
1. an intermittent gas solid separation and solids collection system, it is characterised in that: include gas-solid separator, dust cuvette (7), dust cuvette lowering or hoisting gear (8), horn cover (5), barometric damper (11), electromagnetic vibrator (10), blower fan (12), support (14), plastic flexible pipe (4), control line (15) and digital control system (13)；
Described gas-solid separator includes air inlet (3), gas outlet (9), discharging opening (6), gas solid separation storehouse (2), screen cloth (16) and storehouse cover (1)；Described storehouse cover (1) is positioned at top, gas solid separation storehouse (2), and screen cloth (16) is positioned between gas solid separation storehouse (2) and storehouse cover (1)；Described gas solid separation storehouse (2) top is cylindrical, and bottom is cone-shaped；Described air inlet (3) is positioned at the side of the bottom cone in gas solid separation storehouse (2), and gas outlet (9) are positioned at the side in storehouse cover (1), and discharging opening (6) is positioned at the underface of gas solid separation storehouse (2)；Wherein, gas solid separation storehouse (2), screen cloth (16) are coaxially disposed with storehouse cover (1)；
Described gas-solid separator is fixed on support (14), and the discharging opening (6) of bottom can with dust cuvette (7) intermittent contact；The side of gas solid separation storehouse (2) upper cylinder is close to by described electromagnetic vibrator (10)；Described air inlet (3) is connected with horn cover (5) by the plastic flexible pipe (4) of smooth inner wall, described gas outlet (9) is connected with blower fan (12) by plastic flexible pipe (4), equipped with barometric damper (11) between gas outlet (9) and blower fan (12), described digital control system (13) is connected with dust cuvette lowering or hoisting gear (8), electromagnetic vibrator (10), blower fan (12) respectively by control line (15).
2. a kind of intermittent gas solid separation according to claim 1 and solids collection system, it is characterised in that described gas-solid separator and dust cuvette (7) are stainless steel material or rigid plastics.
3. a kind of intermittent gas solid separation according to claim 1 and solids collection system, it is characterised in that internal diameter Φ 2 ~ 6cm, the external diameter Φ 2.2 ~ 8cm of described air inlet (3), gas outlet (9) and discharging opening (6), thickness is d0.2 ~ 2cm；Described air inlet (3) slant setting, with the horizontal plane angle of cut 10o~50o。
4. a kind of intermittent gas solid separation according to claim 1 and solids collection system, it is characterised in that described gas solid separation storehouse (2) internal footpath Φ 10 ~ 30cm, external diameter Φ 10.2 ~ 32cm, thickness is d0.2 ~ 2cm；Described gas solid separation storehouse (2) cylinder height h1=5 ~ 20cm, gas solid separation storehouse (2) bottom cone is height h vertically2=5~20cm。
5. a kind of intermittent gas solid separation according to claim 1 and solids collection system, it is characterised in that the order number of described screen cloth (16) is 200 ~ 800, and corresponding aperture is 15 ~ 80 μm.
6. a kind of intermittent gas solid separation according to claim 1 and solids collection system, it is characterised in that described air inlet (3) is positioned at the bottom of gas solid separation storehouse (2) cone；Described gas solid separation storehouse (2), air inlet (3) and discharging opening (6) inner wall smooth, weld should process through sanding and polishing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610136605.2A CN105727673A (en) | 2016-03-10 | 2016-03-10 | Intermittent gas-solid separation and solid collection system |
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| CN201610136605.2A CN105727673A (en) | 2016-03-10 | 2016-03-10 | Intermittent gas-solid separation and solid collection system |
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| CN105727673A true CN105727673A (en) | 2016-07-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113318481A (en) * | 2021-05-25 | 2021-08-31 | 上海市农产品质量安全中心 | Heparin column auxiliary column passing device and using method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0841095A2 (en) * | 1996-11-12 | 1998-05-13 | Doryokuro Kakunenryo Kaihatsu Jigyodan | Cyclone dust collector |
| CN2494234Y (en) * | 2001-07-24 | 2002-06-05 | 张光卫 | Cyclone separator for screening powder |
| CN101678370A (en) * | 2007-06-01 | 2010-03-24 | 国际壳牌研究有限公司 | Gas-solids separator |
| CN102698532A (en) * | 2012-06-27 | 2012-10-03 | 卓卫民 | Filter bag gas-solid separator and gas-solid separation method thereof |
| CN203249811U (en) * | 2013-05-10 | 2013-10-23 | 南昌光明化验设备有限公司 | Automatic grinding mill |
-
2016
- 2016-03-10 CN CN201610136605.2A patent/CN105727673A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0841095A2 (en) * | 1996-11-12 | 1998-05-13 | Doryokuro Kakunenryo Kaihatsu Jigyodan | Cyclone dust collector |
| CN2494234Y (en) * | 2001-07-24 | 2002-06-05 | 张光卫 | Cyclone separator for screening powder |
| CN101678370A (en) * | 2007-06-01 | 2010-03-24 | 国际壳牌研究有限公司 | Gas-solids separator |
| CN102698532A (en) * | 2012-06-27 | 2012-10-03 | 卓卫民 | Filter bag gas-solid separator and gas-solid separation method thereof |
| CN203249811U (en) * | 2013-05-10 | 2013-10-23 | 南昌光明化验设备有限公司 | Automatic grinding mill |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113318481A (en) * | 2021-05-25 | 2021-08-31 | 上海市农产品质量安全中心 | Heparin column auxiliary column passing device and using method thereof |
| CN113318481B (en) * | 2021-05-25 | 2022-05-06 | 上海市农产品质量安全中心 | Heparin column auxiliary column passing device and using method thereof |
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