CN105688567A

CN105688567A - Drum type dust removal device with induced draft fan convenient to disassemble

Info

Publication number: CN105688567A
Application number: CN201610123107.4A
Authority: CN
Inventors: 魏浩; 银永忠
Original assignee: Jishou University
Current assignee: Hunan Meilin Housing Industry Co., Ltd.
Priority date: 2016-03-05
Filing date: 2016-03-05
Publication date: 2016-06-22
Anticipated expiration: 2036-03-05
Also published as: CN105688567B

Abstract

The invention discloses a drum type dust removal device with an induced draft fan convenient to disassemble. A drum is of a cylindrical structure, and the cylinder is incompletely divided through multiple partitioning plates; the drum is connected with a motor and can rotate at a high speed along with the motor; open holes are formed in the upper and lower ends of the drum, the drum is connected with an air inlet through an upper gas collecting box and connected with the induced draft fan through a lower gas collecting box, and an air outlet of the induced draft fan is connected with a bag collector; a dust clearing door is arranged on the lower gas collecting box and facilitates dust clearing; an induced draft fan impeller can utilize centrifugal force to clear away dust in time. The drum type dust removal device is simple in structure and good in dust removal effect, more importantly, the disassembly and assembly technology of the induced draft fan is substantially improved, pressure on the end face of a screw shaft shoulder by a screw cap and other similar components can be easily eliminated in the disassembly process, the problem that in the thread assembly process of the induced draft fan, the induced draft fan constantly and automatically locks and is not prone to being disassembled under the action of loads is solved effectively, and the drum type dust removal device is particularly suitable for convenient disassembly after a large draught fan is locked in a threaded mode and has a remarkable effect.

Description

Air-introduced machine is easy to the rotary drum dust arrester disassembled

Technical field

The present invention relates to a kind of rotary drum dust arrester, referring specifically to air-introduced machine will not laying dust and be easy to the rotary drum dust arrester disassembled。

Background technology

Ventilation and dust removal are all essential in a lot of commercial production, what application was more at present is cyclone dust removal, Bag filter dedusting and pulsed dedusting, wherein cyclone dust removal is applied relatively broad due to simple in construction, durable, failure rate is low, but has that efficiency of dust collection is not as high, separation factor is less and cannot realize dedusting very thoroughly；Cloth-sack-type dust removal is filtering type, effective, but use procedure air resistance is relatively big, and blast is high, and energy consumption is bigger；Pulsed dedusting energy consumption is relatively low, good dedusting effect, but structure is complex, and manufacturing cost is high。Therefore, in the urgent need to there being a kind of dust arrester in commercial production, the advantage that above-mentioned three kinds of dust arresters can be taken into account, there is good dedusting effect, energy consumption low, and the feature that structure is also relatively simple。

Air-introduced machine is the key equipment of dust arrester; air-introduced machine is generally centrifugal blower; air-introduced machine continuous, stable, reliably working is very crucial; the occasion used due to dust arrester 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 dust arrester 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 the technological progress of dust arrester with stop 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 dismantles and overhaul the rotary drum dust arrester that air-introduced machine all very easily is easy to disassemble。

For overcoming the deficiencies in the prior art, the present invention takes techniques below scheme:

A kind of air-introduced machine is easy to the rotary drum dust arrester disassembled, including rotary drum, it is characterised in that: rotary drum is columnar structured, and cylinder is not exclusively separated by some pieces of dividing plates；Rotary drum is connected to motor, can with motor high speed rotating；There is perforate at the upper and lower two ends of rotary drum, connect air inlet by upper plenum chamber, and lower plenum chamber connects air-introduced machine, and fan out draft connects bagroom；Lower plenum chamber is provided with shoot door, it is simple to cleaning dust；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 rotary drum side is provided with vibrator, and there is counterweight one end of vibrator connecting rod, and vibrator connecting rod has pin hole, and pin hole is connected with pan by connecting rod。

Described vibrator is provided with cushion, it is prevented that damage rotary drum during vibrator works。

Described air inlet connects cyclone separator。

Dust-contained airflow enters cyclone separator, isolates big dust particle and carries out one-time dedusting, and fine silt delivers into rotary drum dust removal machine and carries out final dusting, then delivers into bagroom with air exhauster and completes third dedusting, reduces waste and environmental pollution。

Apparatus of the present invention are to utilize the centrifugal force that rotary drum high speed rotating produces to strengthen dedusting of bleeding, and have simple in construction, and energy consumption is low and the feature of good dedusting effect。Tests prove that: the present invention is than cyclone dust removal equipment good dedusting effect, lower than cloth-sack-type dust removal equipment energy consumption, lower than pulse-type dust removing equipment simple in construction, cost of manufacture, combine the advantage of multiple cleaner, this dust arrester is also convenient for deashing operation, thus practicality is particularly strong, application prospect is very wide。

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。

Figure 10 is the partial enlarged drawing of the present invention。

Figure 11 is the sectional view of rotary drum。

In figure, each label represents:

A, air-introduced machine；1, cyclone separator；2, rotary drum dust removal machine；3, bagroom；11, shoot door；12, vibrator；13, counterweight；14, pin hole；15, pan；16, motor；17, air inlet；18, upper plenum chamber；19, rotary drum；20, lower plenum chamber；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, Fig. 7, Fig. 8, air-introduced machine shown in Fig. 9, Figure 10 and Figure 11 be easy to the rotary drum dust arrester disassembled, rotary drum 19 is columnar structured, and cylinder is not exclusively separated by some pieces of dividing plates；Rotary drum 19 is connected to motor 16, can with motor 16 high speed rotating；There is perforate at rotary drum about 19 two ends, connect air inlet 17 by upper plenum chamber 18, and lower plenum chamber 20 connects air-introduced machine A, and air-introduced machine A air outlet connects bagroom 3；Lower plenum chamber is provided with shoot door 11, it is simple to cleaning dust；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 rotary drum side is provided with vibrator 12, and there is counterweight 13 one end of vibrator 12 connecting rod, and vibrator 12 connecting rod has pin hole 14, and pin hole 14 is connected with pan 15 by connecting rod。

Described vibrator 12 is provided with cushion, it is prevented that damage rotary drum during vibrator works。

Described air inlet 17 connects cyclone separator 1。

During work, blower fan A starts, and motor 16 drives rotary drum 19 high speed rotating, dusty gas traverse high speed rotary drum 19, wherein dust is under rotary drum 19 high speed circumference Sports band is dynamic, it is deposited on rotary drum inner surface by centrifugal action, thus air exhauster extraction in rotary drum 19 lower end is pure air, reaches dedusting purpose。

When the heavy collection of rotary drum 19 inner surface dust is more, available vibrator 12, counterweight 13, pin hole 14, pan 15 carry out dust cleaning。Extracting pin in pin hole 14 out, vibrating device can swing flexibly around pan 15, by regulating counterweight 13, thus it is possible to vary compresses the pressure of rotary drum 19 when vibrator 12 works, and vibrator 12 is by cushion contact rotary drum 19。After switching on power, vibrator 12 produces strong vibration and is shaken off by dust in rotary drum 19, and dust can be removed by the shoot door 11 opened on lower plenum chamber 20。

This device high speed rotating centrifugal dust-removing, efficiency is high, and vibration cleaning is easy to operation。In order to rotary drum 19 can drive rapidly by wherein air-flow high speed rotating centrifugation dust, the cross section of rotary drum 19 such as Figure 11, in rotary drum, it is provided with blade。

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。

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。

Claims

1. air-introduced machine is easy to the rotary drum dust arrester disassembled, including rotary drum, it is characterised in that: rotary drum is columnar structured, and cylinder is not exclusively separated by some pieces of dividing plates；Rotary drum is connected to motor, can with motor high speed rotating；There is perforate at the upper and lower two ends of rotary drum, connect air inlet by upper plenum chamber, and lower plenum chamber connects air-introduced machine, and fan out draft connects bagroom；Lower plenum chamber is provided with shoot door, it is simple to cleaning dust；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。

2. air-introduced machine is easy to the rotary drum dust arrester disassembled according to claim 1, it is characterized in that: described draught fan impeller includes impeller backboard, impeller panel, primary blades and auxiliary blade, 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。

3. air-introduced machine according to claim 1 or claim 2 is easy to the rotary drum dust arrester disassembled, it is characterised in that: described rotary drum side is provided with vibrator, and there is counterweight one end of vibrator connecting rod, and vibrator connecting rod has pin hole, and pin hole is connected with pan by connecting rod。

4. air-introduced machine according to claim 1 or claim 2 is easy to the rotary drum dust arrester disassembled, it is characterised in that: described vibrator is provided with cushion, it is prevented that damage rotary drum during vibrator works。

5. air-introduced machine according to claim 1 or claim 2 is easy to the rotary drum dust arrester disassembled, it is characterised in that: described air inlet connects cyclone separator。