CN105013598A - Raymond mill system with draught fan free of dust retention - Google Patents
Raymond mill system with draught fan free of dust retention Download PDFInfo
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- CN105013598A CN105013598A CN201510496240.XA CN201510496240A CN105013598A CN 105013598 A CN105013598 A CN 105013598A CN 201510496240 A CN201510496240 A CN 201510496240A CN 105013598 A CN105013598 A CN 105013598A
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- impeller
- cyclone
- blower fan
- raymond mill
- draught fan
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Abstract
The invention discloses a Raymond mill system with a draught fan free of dust retention. An air current circulation milling discharging system is formed by the draught fan, a Raymond mill, a cyclone separation discharging device and an air return duct; a pressure-equalizing exhaust branch pipe is connected with the upper end of a cyclone pipe, multiple cyclones are arranged in the cyclone pipe, the lower end of the cyclone pipe is connected with a cyclone separator in the tangent direction, and a lower pipe orifice of the cyclone separator immerges into a circulation water tank which is connected with the upper end of the cyclone pipe; and an impeller of the draught fan is of a structure that blades are in a hollow and wedged shape and the backing plate is in a disc shape, and the contour line of the appearance of the draught fan is an evolvent. According to the Raymond mill system with the draught fan free of the dust retention, due to the fact that the cyclone pipe and the cyclones are arranged, low-resistance pressure-equalizing exhaust is achieved, and dust overflow caused by positive pressure of the system is eliminated; by means of the circulation water tank, wet-method high-efficiency dust removal and mineral powder recycling are achieved; and by means of the structure that the blades are in the hollow and wedged shape and the backing plate is in the disc shape, real-time cleaning of the dust on an impeller of the draught fan is achieved, the impeller strength of the draught fan is increased, the stability is enhanced, safety accidents caused by dust accumulation is effectively eradicated, and the application prospect is wide.
Description
Technical field
The present invention relates to a kind of Raymond mill system, specifically refer to the Raymond mill system of blower fan not laying dust.
Background technology
Raymond mill system is the equipment of a kind of extensive use and ore grinding, abrasive dust, because its strong adaptability, cost performance are high, becomes the first-selection of ore grinding and abrasive dust.Raymond mill is that internal air circulation powder exports, and owing to expanding with elevated temperature gas in crushing process, if ore water content is higher or have water to enter, powder yield not only can be caused out to reduce, and also gas can be caused to expand in a large number due to moisture vaporization.Therefore, Raymond mill is all provided with equal pressure gas branch pipe, excessive gas is inputted sack cleaner and carry out purification discharge, avoid crushing system to occur the dust leakage that malleation causes, but cloth bag is when humidity is larger, inner face easily adheres to dust, air permeance resistance is caused to increase, also can cause system malleation, make the Leakage Gas containing a large amount of dust, working environment is worsened.So, keep Raymond mill equal pressure gas branch pipe unimpeded, realize udst separation and breeze recovery simultaneously, to improving working environment, realizing ore dust and reclaiming significant.
Blower fan is the key equipment of Raymond mill system; be generally centrifugal blower; blower fan continuous, stable, reliably working is very crucial to Raymond mill system; the occasion used due to Raymond mill system inevitably contains breeze dust; during blower fan work; air-flow by during the draught fan impeller of High Rotation Speed due to centrifugation, mineral powder granular can depart from air-flow phase and deposit and be attached on draught fan impeller.
Because draught fan impeller rotating speed is general all higher, as long as there is micro-breeze dust to exist in air-flow, all more dust can be accumulated after working long hours, thus change the balance of draught fan impeller rotation, if draught fan impeller does not have self purification not clear up in time to dust yet, will cumulative and progressively change draught fan impeller Static and dynamic balance, thus produce vibration.Have the dust that part hardens to be come off by vibration once run into, will balance away from the dynamic rotary of blower fan immediately, then produce judder, this may cause serious personnel and device security accident.
Therefore, if can a kind of centrifugal fan impeller be designed, Automatic clearance can be carried out and just do not worry causing dust to accumulate, for keeping the reliable and stable work of blower fan and stopping the meaning that security incident all has particular importance.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiencies in the prior art exactly, provides a kind of simple and practical, the Raymond mill system of the blower fan not easily causing breeze dust leakage not laying dust.
For overcoming the deficiencies in the prior art, the present invention takes following technical scheme:
A Raymond mill system for blower fan not laying dust, comprises Raymond mill, cyclonic separation discharger, blower fan and equal pressure gas branch pipes, it is characterized in that; Blower fan, Raymond mill, cyclonic separation discharger and return-air airduct form airflow circulating abrasive dust discharge system; Equal pressure gas branch pipe connects cyclone pipe upper end, in cyclone pipe, multiple cyclone is set, cyclone pipe lower end tangentially connects cyclone separator, on cyclone separator, exhaust outlet discharges the air of purification, lower nozzle realizes fluid-tight discharging under immersing circulating water pool liquid level, and circulating water pool is connected cyclone pipe upper end through circulating pump with circulating water pipe; Described blower fan comprises draught fan impeller and casing, and draught fan impeller comprises impeller backboard, impeller panel and blade, and blade arrangement becomes impeller Axial and radial, centrosymmetric hollow wedge, and impeller backboard is dish; Hollow wedge blade connects impeller panel and is welded to form impeller bodies with dish-shaped impeller backboard; Impeller panel is provided with air inlet, dish-shaped impeller backboard by the fixing also connection shaft seat of rivet, and axle bed is connected by axis hole and fan shaft; Casing is provided with air inlet and air outlet, cabinet form outline line is involute, the round heart of involute and blower fan axis coinciding, involute is from inside shell air outlet, line radius strengthens gradually with involute circle, terminate outside shell air outlet, shell air outlet width equals involute circumference; Shell air inlet is provided with cover plate, cover plate also has air inlet be convenient to connecting pipe, and axle center and impeller axis coinciding.
Described return-air airduct is connected import department and is provided with isolation temporary storage barrel with blower fan, isolation temporary storage barrel is provided with gravity bin gate;
Be provided with powder temporary storage barrel below described gravity bin gate, powder temporary storage barrel is provided with valve and discharge gate;
Described casing is fixed on support.Casing plays sealing process, air inlet air inlet obtains kinetic energy by vane rotary, and carries out power conversion in casing, and a part of kinetic energy is converted to the static energy of gas, make output gas flow have speed dynamic head like this and also have hydrostatic head, both sums are exactly blower press.
Shell air inlet can connect airduct according to need, air inlet cover plate is detachable, be bolted to connection casing, the scroll casing shape of casing is gradually opened profile and is met the needs that Fan casing is airtight, conveying gas realizes energy efficient conversion simultaneously, makes output gas flow can reach required flow and total head.
Described shell air inlet cover plate is bolted to connection casing, and can dismantle.
During equipment work, blower fan, Raymond mill, cyclonic separation discharger and return-air airduct form airflow circulating abrasive dust discharge system, in practical application, return-air airduct especially easily deposits breeze, depart from a large number to fall once the breeze that hardens and just easily pour damage equipment in blower fan, so keep at fan inlet place design isolated temporary storage barrel the breeze hardening and fall, realize gas pressure isolation simultaneously.Isolation temporary storage barrel material stock how after, gravity bin gate can automatic shutter, breeze is entered powder temporary storage barrel, can operate discharge gate and be discharged by breeze and use, thoroughly eliminate the hidden danger of blower fan abnormal damage according to situation.
Equal pressure gas branch pipe and circulating water pipe are all connected cyclone pipe upper end, in cyclone pipe, cyclone is set in right amount, steam is blended in cyclone pipe to rotate and declines, dust is captured and enters cyclone separator, on cyclone separator, exhaust outlet discharges the air of purification, lower nozzle realizes fluid-tight discharging under immersing circulating water pool liquid level, and breeze deposits in circulating water pool, and surperficial primary water is transported to cyclone pipe upper end spray by water circulating pump.Cyclone gas-flow resistance is far smaller than Bag filter resistance, can not cause system malleation; Multistage cyclone separation energy more thoroughly catches dust simultaneously, and discharge air-flow cleanliness factor is high, greatly improves ore grinding and abrasive dust working environment.
When draught fan impeller of the present invention uses, because blade design becomes hollow wedge, and sharf radial center is symmetrical, thus during High Rotation Speed, blade surface has centrifugal self purification under centrifugal action, make dust be subject to centrifugal action and cannot adhere to, dynamic, the static balancing of impeller would not be affected like this, more can not accumulate dust; The technical scheme of this blade construction, is particularly suitable for the large blower fan of the large wide impeller of delivery air amount and adopts.
Compared with the impeller backboard of common blower fan, the characteristics and advantages of dish impeller backboard is: when steel plate thickness is the same, dish backboard due to rigidity reinforced, stress dispersion, elastic buffer improve and shape stability also significantly improve, thus bearing capacity can be enhanced about more than once on common flat backboard basis.Because backboard almost carries whole fans load, understand more durable so dish made by backboard, the wheel hub of truck is because have disc structure, so bearing capacity strengthens, also more durable.
Compared with prior art, beneficial effect of the present invention is also:
By arranging cyclone pipe and cyclone realizes the equal pressure gas of lower resistance, the dust that Eradication System malleation causes overflows; Circulating water pool realizes wet high-effective dedusting and breeze reclaims; Isolation temporary storage barrel thoroughly eliminate blower fan by the dust that hardens fall damage hidden danger.
Blade design becomes hollow wedge, and sharf radial center is symmetrical, and the blower fan backboard making it connect and the anti-relative torsion of panel, to extrude rigidity extremely strong, can stop to use the fan blade caused to connect the fracture of backboard root for a long time.
Blade design becomes hollow wedge, and sharf radial center is symmetrical, even also can obtain higher intensity with thinner board making draught fan impeller, ensures to stablize, reliably use, can save material, be convenient to make, be also conducive to light and handyization of equipment.
Fan blade ingehious design is become hollow wedge by the present invention, and the shape of sharf radial center symmetry, achieve the real-time cleaning of dust on blade, extend the service life of equipment and effectively can stop the security incident that dust accumulates initiation, having a extensive future.
Accompanying drawing explanation
Fig. 1 is planar structure schematic diagram of the present invention
Fig. 2 is the planar structure schematic diagram of draught fan impeller.
Fig. 3 is the cross-sectional view of draught fan impeller.
Fig. 4 is the planar structure schematic diagram of blower fan.
Fig. 5 is the three-dimensional structure schematic diagram of cyclone.
In figure, each label represents:
A, blower fan; C, cyclone; 1, Raymond mill; 2, cyclonic separation discharger; 3, return-air airduct; 4, equal pressure gas branch pipe interface; 5, temporary storage barrel is isolated; 6, gravity bin gate; 7, valve; 8, powder temporary storage barrel; 9, discharge gate; 10, cyclone pipe; 11, cyclone separator; 12, circulating pump; 13, circulating water pipe; 14, equal pressure gas branch pipe; 31, Wedge blade; 32, impeller cylindrical; 33, impeller air inlet; 34, axle bed; 35, rivet; 36, axis hole; 37, dish-shaped impeller backboard; 38, impeller panel; 41, impeller; 42, shell air inlet; 43, involute circle; 44, support; 45, casing; 46, shell air inlet cover plate; 47, shell air outlet; B, shell air outlet width.
Detailed description of the invention
Now by reference to the accompanying drawings, the present invention is illustrated further.
As shown in Figure 1, Figure 2, the Raymond mill system of the not laying dust of blower fan shown in Fig. 3, Fig. 4 and Fig. 5, comprise Raymond mill 1, cyclonic separation discharger 2, blower fan A and equal pressure gas branch pipe 14, blower fan A, Raymond mill 1, cyclonic separation discharger 2 and return-air airduct 3 form airflow circulating abrasive dust discharge system; Equal pressure gas branch pipe 14 connects cyclone pipe 10 upper end, multiple cyclone C is set in cyclone pipe 10, cyclone pipe 10 lower end tangentially connects cyclone separator 11, on cyclone separator 11, exhaust outlet discharges the air of purification, lower nozzle realizes fluid-tight discharging under immersing circulating water pool liquid level, and circulating water pool is connected cyclone pipe 10 upper end through circulating pump 12 with circulating water pipe 13; Described blower fan comprises draught fan impeller 41 and casing 45, and draught fan impeller 41 comprises impeller backboard 37, impeller panel 38 and blade 31, and blade 31 is arranged to impeller Axial and radial, centrosymmetric hollow wedge, and impeller backboard 37 is dish; Hollow wedge blade 31 connects impeller panel 38 and is welded to form impeller bodies with dish-shaped impeller backboard 37; Impeller panel 38 is provided with air inlet 33, dish-shaped impeller backboard 37 by the fixing also connection shaft seat 34 of rivet 35, and axle bed 34 is connected by axis hole 36 and fan shaft; Casing 45 is provided with air inlet 42 and air outlet 47, cabinet form outline line is involute, the round heart of involute and blower fan axis coinciding, involute is from inside shell air outlet 47, line radius strengthens gradually with involute circle, terminate outside shell air outlet 47, shell air outlet width B equals involute circle 43 girths; Shell air inlet 42 is provided with cover plate 46, cover plate also has air inlet be convenient to connecting pipe, and axle center and impeller axis coinciding.
Described return-air airduct 3 is connected import department and is provided with and isolates temporary storage barrel 5 with blower fan A, isolation temporary storage barrel 5 is provided with gravity bin gate 6;
Be provided with powder temporary storage barrel 8 below described gravity bin gate 6, powder temporary storage barrel 8 is provided with valve 7 and discharge gate 9;
Described casing 45 is fixed on support 44.Casing 45 plays sealing process, air inlet 42 air inlet is rotated by impeller 41 and obtains kinetic energy, and carries out power conversion in casing 45, and a part of kinetic energy is converted to the static energy of gas, make output gas flow have speed dynamic head like this and also have hydrostatic head, both sums are exactly blower press.
Shell air inlet 42 can connect airduct according to need, air inlet cover plate 46 is detachable, be bolted to connection casing 45, the scroll casing shape of casing 45 is gradually opened profile and is met the needs that Fan casing is airtight, conveying gas realizes energy efficient conversion simultaneously, makes output gas flow can reach required flow and total head.
Described shell air inlet cover plate 46 is bolted to connection casing 15, and can dismantle.
During equipment work, blower fan A, Raymond mill 1, cyclonic separation discharger 2 and return-air airduct 3 form airflow circulating abrasive dust discharge system, in practical application, return-air airduct 3 especially easily deposits breeze, depart from a large number to fall once the breeze that hardens and just easily pour damage equipment in blower fan A, so at the temporary breeze fallen that hardens of fan inlet place design isolated temporary storage barrel 5, realize gas pressure isolation simultaneously.Isolation temporary storage barrel 5 material stock how after, gravity bin gate 6 can automatic shutter, breeze is entered powder temporary storage barrel 8, can operate discharge gate 9 and be discharged by breeze and use, thoroughly eliminate the hidden danger of blower fan abnormal damage according to situation.
Equal pressure gas branch pipe 14 and circulating water pipe 13 are all connected cyclone pipe 10 upper end, in cyclone pipe 10, cyclone C is set in right amount, steam is blended in cyclone pipe 10 to rotate and declines, dust is captured and enters cyclone separator 11, on cyclone separator 11, exhaust outlet discharges the air of purification, lower nozzle realizes fluid-tight discharging under immersing circulating water pool liquid level, and breeze deposits in circulating water pool, and surperficial primary water is transported to cyclone pipe 10 upper end spray by water circulating pump 12.Cyclone C gas-flow resistance is far smaller than Bag filter resistance, can not cause system malleation; Multistage cyclone separation energy more thoroughly catches dust simultaneously, and discharge air-flow cleanliness factor is high, greatly improves ore grinding and abrasive dust working environment.
When draught fan impeller of the present invention uses, because blade design becomes hollow wedge, and sharf radial center is symmetrical, thus during High Rotation Speed, blade surface has centrifugal self purification under centrifugal action, make dust be subject to centrifugal action and cannot adhere to, dynamic, the static balancing of impeller would not be affected like this, more can not accumulate dust; The technical scheme of this blade construction, the wide impeller air-introduced machine being particularly suitable for delivery air amount large adopts.
Compared with the impeller backboard of common air-introduced machine, the characteristics and advantages of dish impeller backboard 37 is: when steel plate thickness is the same, dish backboard due to rigidity reinforced, stress dispersion, elastic buffer improve and shape stability also significantly improve, thus bearing capacity can be enhanced about more than once on common flat backboard basis.Because backboard almost carries whole fans load, understand more durable so dish made by backboard, the wheel hub of truck is because have disc structure, so bearing capacity strengthens, also more durable.
Above-mentioned just preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Any those of ordinary skill in the art, when not departing from technical solution of the present invention scope, can utilize the technology contents of above-mentioned announcement to make many possible variations and modification to technical solution of the present invention, or being revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solution of the present invention protection.
Claims (5)
1. a Raymond mill system for blower fan not laying dust, comprises Raymond mill, cyclonic separation discharger, blower fan and equal pressure gas branch pipes, it is characterized in that; Blower fan, Raymond mill, cyclonic separation discharger and return-air airduct form airflow circulating abrasive dust discharge system; Equal pressure gas branch pipe connects cyclone pipe upper end, in cyclone pipe, multiple cyclone is set, cyclone pipe lower end tangentially connects cyclone separator, on cyclone separator, exhaust outlet discharges the air of purification, lower nozzle realizes fluid-tight discharging under immersing circulating water pool liquid level, and circulating water pool is connected cyclone pipe upper end through circulating pump with circulating water pipe; Described blower fan comprises draught fan impeller and casing, and draught fan impeller comprises impeller backboard, impeller panel and blade, and blade arrangement becomes impeller Axial and radial, centrosymmetric hollow wedge, and impeller backboard is dish; Hollow wedge blade connects impeller panel and is welded to form impeller bodies with dish-shaped impeller backboard; Impeller panel is provided with air inlet, dish-shaped impeller backboard by the fixing also connection shaft seat of rivet, and axle bed is connected by axis hole and fan shaft; Casing is provided with air inlet and air outlet, cabinet form outline line is involute, the round heart of involute and blower fan axis coinciding, involute is from inside shell air outlet, line radius strengthens gradually with involute circle, terminate outside shell air outlet, shell air outlet width equals involute circumference; Shell air inlet is provided with cover plate, cover plate also has air inlet be convenient to connecting pipe, and axle center and impeller axis coinciding.
2. the Raymond mill system of blower fan not laying dust according to claim 1, it is characterized in that: described return-air airduct is connected import department and is provided with isolation temporary storage barrel with blower fan, isolation temporary storage barrel is provided with gravity bin gate.
3. the Raymond mill system of blower fan not laying dust according to claim 2, is characterized in that: be provided with powder temporary storage barrel below described gravity bin gate, powder temporary storage barrel is provided with valve and discharge gate.
4. the Raymond mill system of blower fan not laying dust according to claim 1 or 2, is characterized in that: described casing is fixed on support.
5. the Raymond mill system of blower fan not laying dust according to claim 1 or 2, is characterized in that: described shell air inlet cover plate is bolted to connection casing, and can dismantle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510496240.XA CN105013598A (en) | 2015-08-14 | 2015-08-14 | Raymond mill system with draught fan free of dust retention |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510496240.XA CN105013598A (en) | 2015-08-14 | 2015-08-14 | Raymond mill system with draught fan free of dust retention |
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| CN105013598A true CN105013598A (en) | 2015-11-04 |
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| CN201510496240.XA Pending CN105013598A (en) | 2015-08-14 | 2015-08-14 | Raymond mill system with draught fan free of dust retention |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105521855A (en) * | 2016-03-05 | 2016-04-27 | 吉首大学 | Raymond mill device with convenient-to-disassemble fan |
| CN105665080A (en) * | 2016-03-05 | 2016-06-15 | 吉首大学 | Simple Raymond mill device with fan convenient to disassemble |
| CN105707199A (en) * | 2016-03-05 | 2016-06-29 | 吉首大学 | Environment-friendly preserved product fire-curing device with induced draft fan convenient to disassemble |
| CN105724551A (en) * | 2016-03-05 | 2016-07-06 | 吉首大学 | Green inertial dust catching preserved product smoking and roasting device with convenient-to-disassemble induced draft fan |
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| CN2439326Y (en) * | 2000-08-23 | 2001-07-18 | 张永和 | Vertical, high speed impact type disintegrating system |
| CN1413771A (en) * | 2001-10-26 | 2003-04-30 | 沃尔夫瓦尔斯罗德有限公司 | Method and equipment of combined grinding and drying |
| US20090212140A1 (en) * | 2008-02-26 | 2009-08-27 | American Electric Power Company, Inc. | System and method for processing hygroscopic materials |
| CN201815333U (en) * | 2010-07-28 | 2011-05-04 | 河南天利碳素材料有限公司 | Cooling raymond mill |
| CN203853154U (en) * | 2014-04-03 | 2014-10-01 | 绵阳西金科技发展有限公司 | Efficient energy-saving vertical mill classifier |
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2015
- 2015-08-14 CN CN201510496240.XA patent/CN105013598A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2439326Y (en) * | 2000-08-23 | 2001-07-18 | 张永和 | Vertical, high speed impact type disintegrating system |
| CN1413771A (en) * | 2001-10-26 | 2003-04-30 | 沃尔夫瓦尔斯罗德有限公司 | Method and equipment of combined grinding and drying |
| US20090212140A1 (en) * | 2008-02-26 | 2009-08-27 | American Electric Power Company, Inc. | System and method for processing hygroscopic materials |
| CN201815333U (en) * | 2010-07-28 | 2011-05-04 | 河南天利碳素材料有限公司 | Cooling raymond mill |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105521855A (en) * | 2016-03-05 | 2016-04-27 | 吉首大学 | Raymond mill device with convenient-to-disassemble fan |
| CN105665080A (en) * | 2016-03-05 | 2016-06-15 | 吉首大学 | Simple Raymond mill device with fan convenient to disassemble |
| CN105707199A (en) * | 2016-03-05 | 2016-06-29 | 吉首大学 | Environment-friendly preserved product fire-curing device with induced draft fan convenient to disassemble |
| CN105724551A (en) * | 2016-03-05 | 2016-07-06 | 吉首大学 | Green inertial dust catching preserved product smoking and roasting device with convenient-to-disassemble induced draft fan |
| CN105521855B (en) * | 2016-03-05 | 2017-12-22 | 盐城阳鑫新能源有限公司 | Blower fan is easy to the Raymond mill device disassembled |
| CN105665080B (en) * | 2016-03-05 | 2018-01-19 | 江苏智慧优视电子科技有限公司 | Blower fan is easy to the simple type Raymond mill device disassembled |
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Application publication date: 20151104 |