Heat-pump-type tail heat utilization inertial dust collection penetrates adverse current dehydrator
Technical field
The present invention relates to a kind of dehydrator, refer specifically to air-introduced machine and laying dust and readily accessible and maintenance heat-pump-type tail heat utilization inertial dust collection will not penetrate adverse current dehydrator.
Background technology
Dry lower than 60 degrees Celsius of baking temperature is generally called cold drying by people, and cold drying is widely used in the dry of the heat sensitive materials such as crop seed, Chinese crude drug, biological product. Hot air type drier due to technology maturation, adaptable, operating cost is low, highly reliable, one of preferred unit remaining cold drying. Cold drying is relatively low due to exhaust emissions temperature, thus more difficult carries out tail heat utilization. If can realize in hot air type cold drying process to material penetrating and adverse current is dried, and tail heat is carried out efficient recovery, then for improving drying efficiency and realizing energy-saving and emission-reduction all there is the meaning of 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 dehydrator; the occasion used due to dehydrator all contains certain dust mostly; during air-introduced machine work; due to centrifugation when air-flow is by the draught fan impeller of high speed rotating, dust granule can depart from air-flow phase and deposit and be attached on draught fan impeller.
Draught fan impeller rotating speed is general all higher, as long as air-flow there being trace dust exist, more dust all can be accumulated after working long hours, thus changing the balance that draught fan impeller rotates, if dust is not had self purification also without timely cleaning by draught fan impeller, will cumulative and progressively change static state and the dynamic equilibrium of draught fan impeller, thus producing vibration. Having the dust that hardens of part to be vibrated to come off, will balance away from the dynamic rotary of air-introduced machine immediately, then produce judder once run into, this may cause serious personnel and equipment security incident.
On the other hand, it is draught fan impeller that the structure of common blower fan is typically all fan shaft one end, and the other end is motor power input, is often shaft coupling. Owing to blower fan is typically all long-time operation continuously, so bearing is fragile, change bearing and generally need to first dismantle the shaft coupling of draught fan impeller and the other end, but the assembling of existing fan shaft and draught fan impeller, shaft coupling belongs to typical axle, hole interference fit, and carry out carrying transmission by key. The usual requirement on machining accuracy of interference fit is higher, and associative key connection realizes torque bearing function, and assembling generally all needs to load very big extruding force, without professional equipment and instrument, dismounts all very inconvenient.
Threaded have that processing is simple, it is convenient to assemble, also there is unidirectional carrying torque functions, therefore, if threaded at fan shaft with the connection in hole can adopt and realize transmission simultaneously, so as to assembly or disassembly is all comparatively convenient, then possess higher practical value and market application foreground.Coordinate in motion thread assembling at actual axle with hole, in order to be able to realize big bearing function demand, thread spindle is all relatively big with the scantling of the similar nut member matched, and it is often all also very easily convenient to screw in when assembling, and in use can realize the constantly locking automatically of bearing capacity, thus it is very reliable, but when dismounting, assembling is very tight often, dismantles very difficult, if simple easy removal can be realized under these conditions, it appears particularly important.
Therefore, if a kind of dehydrator can be designed so that it is blower fan can not only clear up dust automatically, and dismantle and maintenance is all very convenient, for promoting the technological progress of dehydrator and stopping security incident all there is the meaning of particular importance.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiencies in the prior art exactly, it is provided that a kind of blower fan can not only clear up dust automatically, and dismantle and overhaul the inertial dust collection of heat-pump-type tail heat utilization all very easily and penetrate adverse current dehydrator.
For overcoming the deficiencies in the prior art, the present invention takes techniques below scheme:
A kind of heat-pump-type tail heat utilization inertial dust collection penetrates adverse current dehydrator, including drying body chassis and air-introduced machine, it is characterised in that; Drying body chassis is respectively arranged at two ends with draught hood and enters fan housing, and draught hood connects air-introduced machine, air-introduced machine emptying after the vaporizer that cyclone dust extractor and baffle-type inertial dust separator of repeatedly turning back connect heat pump; The vaporizer of heat pump connects main frame through refrigerant pipe, and main frame connects condenser through refrigerant pipe; The condensed device in outlet side of aerator connects into fan housing; Drive roll and driven voller is had to drive the traverse of sieve plate steel band in described drying body chassis, drying body chassis is divided into upper case body and lower case body by sieve plate steel band, it is provided with multiple soft spacer being vertically arranged in upper and lower cabinet bulk and upper and lower cabinet bulk is isolated into some unit, soft spacer is gently pressed material to block air-flow completely but is not affected material conveying, aerofoil fan and upper fan fan downward, lower it is provided with upwards in unit, after opening aerofoil fan, air-flow can be forced through the material of sieve plate steel band and top thereof, it is achieved penetration counter-current drying; Described air-introduced machine includes draught fan impeller, bearing, fan shaft and shaft coupling, shaft coupling and fan shaft and draught fan impeller and fan shaft all adopts Screw assembly, and thread rotary orientation is the direction with work with carrying auto lock; The similar nut of draught fan impeller is by threadeding with fan shaft and impeller plain washer, copper-lead being reversed composite pad and compressed, and draught fan impeller and fan shaft one end form screw thread and be rigidly connected; Clip part is inserted in the fan shaft other end, then shaft coupling plain washer is inserted in fan shaft, is then threaded into the shaft coupling of similar nut more rationally all locking, makes the clip part shaft coupling with similar nut also constitute with the fan shaft other end and is rigidly connected; It is the copper packing that punch process becomes that described copper-lead reverses composite pad, is with fin outside it, then at copper packing both sides compound fusible lead alloy packing ring; Described clip part is made up of clip, clip ear, clip pad and bolt, clip cross section is wedge shape, formed opening structure by two semicircular ring card hoop bodies, clip pad opens elliptical aperture to strengthen axial elasticity, clip pad two ends are planar structure, being easy to coordinate with shaft shoulder plane, clip uses bolt through the hole on clip ear, is assemblied on clip pad and is integrally forming.
Described draught fan impeller includes impeller backboard, impeller panel, primary blades and auxiliary blade, and primary blades is flat panel contours and is arranged to impeller Axial and radial, centrosymmetric emitting shape;Primary blades connects impeller panel and is welded into impeller bodies with impeller backboard; Impeller panel is provided with air inlet, and impeller backboard connects into firm one by welding with blower fan axle bed with primary blades inner edge, and blower fan axle bed is connected by axis hole and fan shaft; Blower fan auxiliary blade and impeller panel, backboard, primary blades all constitute three-legged structure.
Described sieve plate steel band is respectively arranged at two ends with feed hopper and discharge bucket, it is achieved the charging of serialization dries.
During equipment work, feed hopper carrying out Homogeneous charge, inside sieve plate steel band traverse dehydrator, 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, enter, after the cyclone dust removal of damp and hot tail gas, baffle-type inertial dust separator of repeatedly turning back, device body is equipped with vibrator, carry out vibration purification to fall ash, be re-introduced into evaporator fin and complete tail heat utilization, through heat pump host work, coolant is carried to discharge heat in fin condenser by refrigerant pipe, the air that aerator blasts after heat exchange intensification, enters dehydrator by entering fan housing on fin condenser, completes penetration adverse current and dries and tail heat utilization.
When the draught fan impeller of the present invention uses, owing to the major-minor sharf radial center of blower fan is symmetrical, blade is when high speed rotating, blade surface has powerful eccentric surfaces self purification under powerful centrifugal action, dust cannot adhere to and can realize Quick spin separation, without influence on dynamic, the static equilibrium of impeller, it is suitable for big flow, laying dust air-flow high-power, anti-conveying. The Axial and radial centrosymmetric structure that impeller panel, backboard, primary blades, auxiliary blade are all triangle, make its blower fan backboard connected and the anti-relative torsion of panel, extruding rigidity extremely strong, blower fan primary blades can be stopped completely and connect the fatigue fracture that backboard root causes because of carrying Moment, also higher intensity can be obtained by relatively thin board making, ensure to stablize, reliably use, the Impeller Design of this spline structure is particularly suitable for thin plate and makes, it is easy to save material, is conducive to light and handyization of equipment.
When air-introduced machine need to be dismantled and overhaul, the copper-lead utilizing innovative design reverses composite pad, clip part, pass through operation readiness, simply eliminating the similar nut member pressure to screw shaft shoulder end face, at this moment nut and screw part are in unloading vacant state, take apart and become equally simple and convenient with Screw assembly, for solving Screw assembly continuous auto lock under load effect, not easily detachable technical barrier, in large fan shaft components screw-threaded coupling field, such function is particularly important.
When draught fan impeller needs dismounting but is very difficult, the copper packing that copper-lead is reversed in the middle of Composition spacer by oxy arc is adopted to carry out oxy arc heat treated, owing to the conductivity of heat of copper is fabulous, and the fusing point of metal is relatively low, after heating, metal is heated melting, the compression tensile force of draught fan impeller and shaft shoulder step is completely eliminated, and makes draught fan impeller be in vacant state completely, is especially susceptible to dismounting.
When the joint member of similar nut needs dismounting but is very difficult, with spanner, bolt is pulled down, two semicircular ring card hoop bodies of cause are quick is wedge shape to opening structure and clip body section, can connect to close up from two clip ears with the flat instrument in one end and easily pry open, clip easy removal is got off, clip pad returns to relaxed state, the tensile force after the locking of joint member and shaft shoulder end face is made to be completely eliminated, the joint member making similar nut is in vacant state completely, is especially susceptible to dismounting.
Compared with prior art, beneficial effects of the present invention also resides in the dismounting technology of the air-introduced machine that significantly taken on a new look, can effectively solve air-introduced machine Screw assembly continuous not easily detachable problem of auto lock under load effect, it is particularly suitable for the convenient dismounting after large fan screw-threaded coupling, effect is especially pronounced, be mainly reflected in following some:
1, not changing the feature of Screw assembly, only need to add Pot metal composite pad, clip pad and clip, low being also especially susceptible to of cost realizes; 2, Pot metal composite pad, clip pad can play good Stress decomposition effect, effectively strengthen the bearing capacity of structure, and elliptical aperture opened by clip pad can effectively strengthen clip pad axial elasticity; 3, the Assembly And Disassembly of the design of Pot metal composite pad hot melt and clip is used very cleverly, realize the tensioning of axial accessory and lax function, the effectively quick tensile force eliminating the locking of similar nut, it is achieved the assembly rapid and convenient dismounting of similar nut member Screw assembly tight especially; 4, clip pad and the wedged dress distribution structure of clip are easy to repeatedly quick assembly and disassembly use.
Accompanying drawing explanation
Fig. 1 is the planar structure schematic diagram of the present invention
Fig. 2 is the perspective view of axes of blower system.
Fig. 3 is the planar structure schematic diagram of axes of blower system.
Fig. 4 is the perspective view of draught fan impeller.
Fig. 5 is the cross-sectional view of draught fan impeller.
Fig. 6 is the structural representation that copper-lead reverses composite pad.
Fig. 7 is the assembling structural representation of clip part.
Fig. 8 is the fractionation structural representation of clip part.
Fig. 9 is the structural representation of clip pad.
In figure, each label represents:
A, air-introduced machine; 1, drive roll; 2, feed hopper; 3, sieve plate steel band; 4, soft dividing plate; 5, aerofoil fan; 6, draught hood; 11, drying body chassis; 12, fan housing is entered; 13, driven roll; 14, discharge bucket; 21, cyclone dust extractor; 22, vaporizer; 23, exhaustor; 24, refrigerant pipe; 25, heat pump main frame; 26, condenser; 27, aerator; 28, repeatedly turn back baffle-type inertial dust separator; 31, primary blades; 32, auxiliary blade; 33, impeller air inlet; 34, blower fan axle bed; 36, axis hole; 37, impeller backboard; 38, impeller panel; 41, draught fan impeller; 42, impeller plain washer; 43, copper-lead reverses composite pad; 44, bearing; 45, fan shaft; 46, clip part; 47, shaft coupling plain washer; 48, shaft coupling; 51, copper packing and fin; 52, fusible lead alloy packing ring; 61, clip; 62, clip ear; 63, clip pad; 64, slotted eye; 65, bolt.
Detailed description of the invention
In conjunction with accompanying drawing, the present invention is further elaborated with.
As shown in Figure 1, Figure 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, heat-pump-type tail heat utilization inertial dust collection shown in Fig. 7, Fig. 8 and Fig. 9 penetrate adverse current dehydrator, including drying body chassis 11 and air-introduced machine A, drying body chassis 11 is respectively arranged at two ends with draught hood 6 and enters fan housing 12, draught hood 6 connects air-introduced machine A, air-introduced machine A and empties after the vaporizer 22 that cyclone dust extractor 21 and baffle-type inertial dust separator 28 of repeatedly turning back connect heat pump; The vaporizer 22 of heat pump connects main frame 25 through refrigerant pipe 24, and main frame 25 connects condenser 26 through refrigerant pipe 24; The condensed device 26 in outlet side of aerator 27 connects into fan housing 12; Drive roll 1 and driven voller 13 is had to drive sieve plate steel band 3 to pass in described drying body chassis 11, drying body chassis 11 is divided into upper case body and lower case body by sieve plate steel band 3, it is provided with multiple soft spacer 4 being vertically arranged in upper and lower cabinet bulk and upper and lower cabinet bulk is isolated into some unit, soft spacer 4 is gently pressed material to block air-flow completely but is not affected material conveying, aerofoil fan 5 and upper fan fan downward, lower it is provided with upwards in unit, after opening aerofoil fan 5, air-flow can be forced through the material of sieve plate steel band 3 and top thereof, it is achieved penetration counter-current drying;Described air-introduced machine A includes draught fan impeller 41, bearing 44, fan shaft 45 and shaft coupling 48, and shaft coupling 48 all adopts Screw assembly with fan shaft 45 and draught fan impeller 41 with fan shaft 45, and thread rotary orientation is the direction with work with carrying auto lock; The similar nut of draught fan impeller 41 is by threadeding with fan shaft 45 and impeller plain washer 42, copper-lead being reversed composite pad 43 and compressed, and draught fan impeller 41 and fan shaft 45 one end form screw thread and be rigidly connected; Clip part 46 is inserted in fan shaft 45 other end, again shaft coupling plain washer 47 is inserted in fan shaft 45, it is then threaded into the shaft coupling 48 of similar nut more rationally all locking, makes the clip part 46 shaft coupling 48 with similar nut also constitute with fan shaft 45 other end and be rigidly connected; Described copper-lead reverses the copper packing that composite pad 43 becomes for punch process, is with fin 51 outside it, then at copper packing both sides compound fusible lead alloy packing ring 52; Described clip part 46 is made up of clip 61, clip ear 62, clip pad 63 and bolt 65, clip 61 cross section is wedge shape, formed opening structure by two semicircular ring card hoop bodies, clip pad 63 opens elliptical aperture 64 to strengthen axial elasticity, clip pad 63 two ends are planar structure, being easy to coordinate with shaft shoulder plane, clip uses bolt 65 through the hole on clip ear 62, is assemblied on clip pad 63 and is integrally forming.
Described draught fan impeller 41 includes impeller backboard 37, impeller panel 38, primary blades 31 and auxiliary blade 32, and primary blades 31 is for flat panel contours and is arranged to impeller Axial and radial, centrosymmetric emitting shape; Primary blades 31 connects impeller panel 38 and is welded into impeller bodies with impeller backboard 37; Impeller panel 38 is provided with air inlet 33, and impeller backboard 37 connects into firm one by welding with fan shaft 45 with primary blades 31 inner edge, and blower fan axle bed 34 is connected by axis hole 36 and fan shaft 45; Blower fan auxiliary blade 32 and impeller panel 38, backboard 37, primary blades 31 all constitute three-legged structure.
Described sieve plate steel band 3 is respectively arranged at two ends with feed hopper 2 and discharge bucket 14, it is achieved the charging of serialization dries.
During equipment work, feed hopper 2 carrying out Homogeneous charge, inside sieve plate steel band 3 traverse dehydrator, after opening aerofoil fan 5, due to the buffer action of soft spacer 4, air-flow can only be forced through the material of sieve plate steel band 3 and top thereof, carries out penetration counter-current drying; Draught hood 6 connects air-introduced machine A air inlet, enter, after the cyclone dust removal of damp and hot tail gas, baffle-type inertial dust separator 28 of repeatedly turning back, device body is equipped with vibrator, carry out vibration purification to fall ash, it is re-introduced into evaporator fin 22 and completes tail heat utilization, work through heat pump main frame 25, coolant is carried to discharge heat in fin condenser 26 by refrigerant pipe 24, the air that aerator 27 blasts on fin condenser 26 heat exchange heat up after, enter dehydrator 11 by entering fan housing 12, complete penetration adverse current and dry and tail heat utilization.
When the draught fan impeller of the present invention uses, owing to the major-minor sharf radial center of blower fan is symmetrical, blade is when high speed rotating, blade surface has powerful eccentric surfaces self purification under powerful centrifugal action, dust cannot adhere to and can realize Quick spin separation, without influence on dynamic, the static equilibrium of impeller, it is suitable for big flow, laying dust air-flow high-power, anti-conveying. The Axial and radial centrosymmetric structure that impeller panel 38, backboard 37, primary blades 31, auxiliary blade 32 are all triangle, make its blower fan backboard connected and the anti-relative torsion of panel, extruding rigidity extremely strong, blower fan primary blades can be stopped completely and connect the fatigue fracture that backboard root causes because of carrying Moment, also higher intensity can be obtained by relatively thin board making, ensure to stablize, reliably use, the Impeller Design of this spline structure is particularly suitable for thin plate and makes, it is easy to save material, is conducive to light and handyization of equipment.
When air-introduced machine A need to dismantle and overhaul, the copper-lead utilizing innovative design reverses composite pad 43, clip part 46, pass through operation readiness, can simply eliminate the similar nut member pressure to screw shaft shoulder end face, at this moment nut and screw part are in unloading vacant state, take apart and become equally simple and convenient with Screw assembly, for solving Screw assembly continuous auto lock under load effect, not easily detachable technical barrier, in large fan shaft components screw-threaded coupling field, such function is particularly important.
When draught fan impeller 41 needs dismounting but is very difficult, the copper packing that copper-lead is reversed in the middle of Composition spacer by oxy arc is adopted to carry out oxy arc heat treated, owing to the conductivity of heat of copper is fabulous, and the fusing point of metal is relatively low, after heating, metal is heated melting, the compression tensile force of draught fan impeller 41 and shaft shoulder step is completely eliminated, and makes draught fan impeller be in vacant state completely, is especially susceptible to dismounting.
When the joint member of similar nut needs dismounting but is very difficult, with spanner, bolt is pulled down, two semicircular ring card hoop bodies of cause are quick is wedge shape to opening structure and clip body section, can connect to close up from two clip ears with the flat instrument in one end and easily pry open, clip easy removal is got off, clip pad returns to relaxed state, the tensile force after the locking of joint member and shaft shoulder end face is made to be completely eliminated, the joint member making similar nut is in vacant state completely, is especially susceptible to dismounting.
Above-mentioned simply presently preferred embodiments of the present invention, not does any pro forma restriction to the present invention. Any those of ordinary skill in the art, when without departing from technical solution of the present invention scope, may utilize the technology contents of the disclosure above and technical solution of the present invention are made many possible variations and modification, or be revised as the Equivalent embodiments of equivalent variations. Therefore, every content without 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.