CN105021016A - Tail heat utilization hot wind type penetrating reverse flow dryer - Google Patents
Tail heat utilization hot wind type penetrating reverse flow dryer Download PDFInfo
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- CN105021016A CN105021016A CN201510496244.8A CN201510496244A CN105021016A CN 105021016 A CN105021016 A CN 105021016A CN 201510496244 A CN201510496244 A CN 201510496244A CN 105021016 A CN105021016 A CN 105021016A
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- impeller
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- tail heat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses a tail heat utilization hot wind type penetrating reverse flow dryer. A draught hood and an air inlet cover are arranged at the two ends of a dryer box body respectively. The draught hood is connected with an efficient cyclone dust removal tail heat recoverer in the tangent direction through an induced draught fan and is then emptied. An air blower is connected with the air inlet cover through a tube type heat exchanger and a steam fin heater. An impeller of the induced draught fan is of the structure that blades are in hollow wedge shapes and a back plate is in a dish shape. The appearance contour line of the induced draught fan is an involute. According to the tail heat utilization hot wind type penetrating reverse flow dryer, the efficient cyclone dust removal tail heat recoverer is designed by innovatively integrating tail heat utilization and dust removal, and therefore the device input is reduced, and the work efficiency is improved; by means of the induced draught fan, a soft partition plate and an axial flow fan, penetrating type reverse flow drying is ingeniously achieved, and the work efficiency is improved; and by means of the structure that the blades are in the hollow wedge shapes and the back plate is in a dish shape, dust on the impeller is removed in real time, the strength of the impeller of the draught fan is improved, stability is enhanced, accidents caused by dust accumulation are effectively eradicated, and application prospects are wide.
Description
Technical field
The present invention relates to a kind of dryer, the concrete blower fan that guides the tail heat utilization hot air type of laying dust can not penetrate adverse current dryer.
Background technology
Heated air drier due to technology maturation, adaptable, operating cost is low, reliability is strong, appointing is so one of main preferred unit of dry materials, if penetrating and adverse current oven dry material can be realized in hot-air drying process, and tail heat is effectively reclaimed, then for improving drying efficiency and realizing the meaning that energy-saving and emission-reduction all have particular importance.
Air-introduced machine is the key equipment of heated air drier; air-introduced machine is generally centrifugal blower; air-introduced machine continuous, stable, reliably working is very crucial to the hydrofuge of dryer; the occasion used due to dryer all contains certain dust mostly; during air-introduced machine work; air-flow by during the draught fan impeller of High Rotation Speed due to centrifugation, dust granule 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-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 air-introduced machine immediately, then produce judder, this may cause serious personnel and device security accident.
Therefore, if can a kind of centrifugal type draught fan impeller be designed, Automatic clearance can be carried out and just do not worry causing dust accumulation, for keeping the reliable and stable work of air-introduced machine 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, and on energy Automatic clearance draught fan impeller, the tail heat utilization hot air type of dust penetrates adverse current dryer.
For overcoming the deficiencies in the prior art, the present invention takes following technical scheme:
A kind of tail heat utilization hot air type penetrates adverse current dryer, comprises drying body chassis and air-introduced machine, it is characterized in that; Drying body chassis two ends are respectively equipped with draught hood and enter fan housing, and draught hood connects air-introduced machine, and air-introduced machine is emptying after tangentially connecting the hot high-efficiency recoverer of cyclone dust removal tail be formed by stacking by tubular heat exchanger and cyclone dust collectors; Tubular heat exchanger shell side inlet end connects air blast, and outlet side connects into fan housing through steam fin heats device; Described air-introduced machine 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.
Drive roll and driven voller is had to drive sieve plate steel band to pass in described drying body chassis, drying body chassis is divided into upper case body and lower case body by sieve plate steel band, upper and lower box body is isolated into some unit by the soft spacer being provided with multiple vertical layout in upper and lower box body, the light laminate material of soft spacer blocks air-flow completely but does not affect mass transport, be provided with aerofoil fan in unit and downward, the lower fan of upper fan upwards.After opening aerofoil fan, air flow energy is forced through the material of sieve plate steel band and top thereof, realizes penetration counter-current drying.
The drain valve of described steam fin heats device tangentially connects cyclone dust collectors, and the steam condensate (SC) utilizing temperature higher carries out hydro-peening to cyclone dust collectors, realizes effective utilization of used heat and waste water.
Described sieve plate steel band two ends are respectively equipped with feed hopper and discharge bucket, and the charging realizing serialization is dry.
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, carry out Homogeneous charge by feed hopper, inner through dryer with sieve plate steel band, after opening aerofoil fan, due to the buffer action of soft spacer, air-flow can only be forced through the material of sieve plate steel band and top thereof, carries out penetration counter-current drying; Draught hood connects air-introduced machine air inlet, and damp and hot tail gas is forced the cavity between input tubular heat exchanger and cyclone dust collectors, and realize cyclone dust removal and carry out the heating of first step eddy flow to the fresh air that air blast enters heat exchanger shell pass, dust is exported by wind stopping device.
Damp and hot steam after dedusting enters heat exchanger tube pass by eddy flow tedge, finally discharge from blast pipe, damp and hot steam carries out second step heating to the fresh air entering shell side in tube side, fresh air after two step preheatings enter steam fin heats device be heated to temperature required after, entering dryer by entering fan housing, completing penetration adverse current and drying.
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 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:
Tail heat utilization and dedusting are carried out creativeness integrated, design the hot high-efficiency recoverer of cyclone dust removal tail, tail heat utilization and dedusting one step are completed, reduces equipment investment and also improve operating efficiency, realize energy-saving and emission-reduction; The steam condensate (SC) utilizing temperature higher carries out hydro-peening to cyclone dust collectors, realizes effective utilization of used heat and waste water; By air-introduced machine, soft spacer and aerofoil fan, the ingenious penetration adverse current achieving material is dried, and improves drying efficiency and speed, also reduces energy consumption.
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.
Vanes on Induced Draft Fan 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 security incident also effectively stopping dust accumulation initiation service life of equipment, have 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 air-introduced machine.
In figure, each label represents:
A, air-introduced machine; 1, cyclone dust collectors; 2, tangent air inlet; 3, blast pipe; 4, tubular heat exchanger; 5, tubulation; 6, eddy flow tedge; 7, wind stopping device; 8, drain valve; 9, air blast; 10, steam fin heats device; 11, drive roll; 12, feed hopper; 13, draught hood; 14, aerofoil fan; 15, soft dividing plate; 16, sieve plate steel band; 17, fan housing is entered; 18, driven roll; 19, discharge bucket; 20, steam valve; 21, drying body chassis; 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.
Tail heat utilization hot air type penetrates adverse current dryer as shown in Figure 1, Figure 2, Figure 3 and Figure 4, comprise drying body chassis 21 and air-introduced machine A, drying body chassis 21 two ends are respectively equipped with draught hood 13 and enter fan housing 17, draught hood 13 connects air-introduced machine A, and air-introduced machine A is emptying after tangentially connecting the hot high-efficiency recoverer of cyclone dust removal tail be formed by stacking by tubular heat exchanger 4 and cyclone dust collectors 1; Tubular heat exchanger 4 shell side inlet end connects air blast 9, and outlet side connects into fan housing 17 through steam fin heats device 10; Described air-introduced machine A 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.
Drive roll 11 and driven voller 18 is had to drive sieve plate steel band 16 to pass in described drying body chassis, drying body chassis 21 is divided into upper case body and lower case body by sieve plate steel band 16, upper and lower box body is isolated into some unit by the soft spacer 15 being provided with multiple vertical layout in upper and lower box body, the light laminate material of soft spacer 15 blocks air-flow completely but does not affect mass transport, be provided with aerofoil fan 14 in unit and downward, the lower fan of upper fan upwards.After opening aerofoil fan 14, air flow energy is forced through the material of sieve plate steel band 16 and top thereof, realizes penetration counter-current drying.
The drain valve 8 of described steam fin heats device 10 tangentially connects cyclone dust collectors 1, and the steam condensate (SC) utilizing temperature higher carries out hydro-peening to cyclone dust collectors 1, realizes effective utilization of used heat and waste water.
Described sieve plate steel band 16 two ends are respectively equipped with feed hopper 12 and discharge bucket 19, and the charging realizing serialization is dry.
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, carry out Homogeneous charge by feed hopper 12, inner through dryer 21 with sieve plate steel band 16, after opening aerofoil fan 14, due to the buffer action of soft spacer 15, air-flow can only be forced through sieve plate steel 16 with and the material of top, carry out penetration counter-current drying as shown by arrows; Draught hood 13 connects air-introduced machine A air inlet, damp and hot tail gas is forced the cavity between input tubular heat exchanger 4 and cyclone dust collectors 1, realize cyclone dust removal and carry out the heating of first step eddy flow to the fresh air that air blast enters heat exchanger 4 shell side, dust is exported by wind stopping device 7.
Damp and hot steam after dedusting enters heat exchanger tube pass 5 (tubulation) by eddy flow tedge 6, finally discharge from blast pipe 3, damp and hot steam carries out second step heating to the fresh air entering shell side in tube side, fresh air after two step preheatings enter steam fin heats device 10 be heated to temperature required after, entering dryer 21 by entering fan housing 17, completing penetration adverse current and drying.
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 (6)
1. tail heat utilization hot air type penetrates an adverse current dryer, comprises drying body chassis and air-introduced machine, it is characterized in that; Drying body chassis two ends are respectively equipped with draught hood and enter fan housing, and draught hood connects air-introduced machine, and air-introduced machine is emptying after tangentially connecting the hot high-efficiency recoverer of cyclone dust removal tail be formed by stacking by tubular heat exchanger and cyclone dust collectors; Tubular heat exchanger shell side inlet end connects air blast, and outlet side connects into fan housing through steam fin heats device; Described air-introduced machine 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. tail heat utilization hot air type penetrates adverse current dryer according to claim 1, it is characterized in that: in described drying body chassis, have drive roll and driven voller to drive sieve plate steel band to pass, drying body chassis is divided into upper case body and lower case body by sieve plate steel band, upper and lower box body is isolated into some unit by the soft spacer being provided with multiple vertical layout in upper and lower box body, the light laminate material of soft spacer blocks air-flow completely but does not affect mass transport, be provided with aerofoil fan in unit and downward, the lower fan of upper fan upwards.
3. according to claim 1 or 2, tail heat utilization hot air type penetrates adverse current dryer, it is characterized in that: the drain valve of described steam fin heats device tangentially connects cyclone dust collectors.
4. according to claim 1 or 2, tail heat utilization hot air type penetrates adverse current dryer, it is characterized in that: described sieve plate steel band two ends are respectively equipped with feed hopper and discharge bucket, and the charging realizing serialization is dry.
5. according to claim 1 or 2, tail heat utilization hot air type penetrates adverse current dryer, it is characterized in that: described casing is fixed on support.
6. according to claim 1 or 2, tail heat utilization hot air type penetrates adverse current dryer, it 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 |
|---|---|---|---|
| CN201510496244.8A CN105021016B (en) | 2015-08-14 | 2015-08-14 | A kind of tail heat utilization hot air type penetrates adverse current dryer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510496244.8A CN105021016B (en) | 2015-08-14 | 2015-08-14 | A kind of tail heat utilization hot air type penetrates adverse current dryer |
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| CN105021016A true CN105021016A (en) | 2015-11-04 |
| CN105021016B CN105021016B (en) | 2018-07-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108724771A (en) * | 2018-04-13 | 2018-11-02 | 镇江市能创电气自动化设备有限公司 | A kind of circulated in countercurrent heating system |
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| CN108724771A (en) * | 2018-04-13 | 2018-11-02 | 镇江市能创电气自动化设备有限公司 | A kind of circulated in countercurrent heating system |
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|---|---|
| CN105021016B (en) | 2018-07-10 |
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