CN1400039A - Composite stirring equipment - Google Patents

Abstract

The equipment for stirring and emulsifying fluid medium is mainly formed from frame type stirrer and high-shearing emulsifier, and is characterized by that a motor, it utilzies coupler to drive rotating shaft, said rotating shaft can be used to drive rotor blade assembled on the emulsifying head to make it rotate; and another motor, it utilizes worm and wornwheel transmission to drive hollow rotating shaft to make it rotate at slow speed, the frame type stirrer is fixed on the slowly-rotated hollow rotating shaft, said stirrer can be used for scraping still and stirring material in the interior of still. The described hollow rotating shaft is cover-mounted on the outside of rotating shaft, its lower end is equipped with stator assembled on the emulsifying head.

Description

A kind of composite stirring equipment

A kind of composite stirring equipment of the design belongs to food, the stirring of chemical industry, emulsifying device.

Now high shearing mixing emulsor is generally adopted in the stirring and the emulsification of chemical industry material, this mulser is by frame, and emulsifying head two major parts are formed, and wherein the emulsifying head part is made up of the rotor and the stator of high speed rotating.Under the driving of motor, the high speed rotor rotated sucks region trochanterica with material from container bottom, bears strong immixture, and material throws away from stator hole after being forced through the stator and rotor clearance of precision-fit.Because the violent machinery and the shear action of fluid power, material particles is torn and pulverizes, and meanwhile new material is sucked into rotor center, has finished a circulation.

It is fine that this mulser is used for stirring the less material effect of viscosity, but when being used for stirring full-bodied material, effect is not fine, and material is easy to stick on the still wall; In addition, when needing to heat in the process of making cosmetics or cooling off, the heat transfer of full-bodied material is obviously not enough.Existing solution is that a gate stirrer is set on kettle cover, the center line of the axle of agitator and the central lines of kettle, a high-shear emulsifying device is set on kettle cover then again, and the shaft axis of the emulsifying head of this emulsifier becomes an acute angle with the center line of kettle.This machine is called compound mixer, and it both can utilize the emulsification of emulsifier to material, and the refinement material can utilize the material that adheres on the scraper plate scraping still wall on the gate stirrer again, and strengthens the material heat transfer, is beneficial to cooling or heating.

What the present invention relates to also is a kind of compound mixer, but the design's difference is the dead in line of the axis and the high-shear emulsifying head of agitator.This composite stirring equipment problem to be solved is with originally independently gate stirrer and high-shear emulsifying device were integrated separately, specifically, exactly will be original separately independently the rotating shaft of the shaft of gate stirrer and emulsifier manufacture the composite stirring equipment that coaxial line rotates, have the function that frame stirs and the emulsification function of emulsifying head simultaneously.

At " mixing apparatus design " (wangkai, Feng Lianfang work, China Machine Press, P45) in the book, once mentioned the he industrial group of Japanese U.S. and the combination of three kinds of agitators of gondola PRESSINDUSTRIAL CHEMICAL EQUIPMENT company's production, this agitator is driven respectively by the shaft of three coaxial lines, outermost layer is the frame impeller that has the polytetrafluoroethylene scraper plate, the second layer is the dasher that comprises three layers of impeller, and this agitator is with the direction rotation opposite with gate stirrer; The stirring of innermost layer drives the rotor of emulsifying head.The fixed axis that this mixer also will be provided with a coaxial line specially is used as the stator of emulsifying head.This equipment is too complicated, cost height, inconvenient maintenance.

The product difference of the design's characteristics and above-mentioned foreign producer is only to comprise the shaft of two-layer coaxial line, a shaft drives gate stirrer, another shaft drives the rotor of emulsifying head, and, do not need to be provided with specially the stator that fixed axis is used as emulsifying head, but stator directly is fixed on the shaft of gate stirrer.

At home, also do not have manufacturer production and the compound mixer of selling this coaxial line on the market, do not have this external series products to sell yet in Chinese market.My company designs and makes the compound mixer of this coaxial line at home first.

The design's purpose is that the external structure of a kind of ratio of design is simpler, the coaxial line composite stirring equipment that reliability is high.The problem that solves is: coaxial line is made in the rotating shaft of high-shear emulsifying head and the rotating shaft of gate stirrer, and the stator of emulsifying head is fixed in the rotating shaft of gate stirrer, allow the stator that rotates replace special fixing stator.

The design's implementation method: a motor is installed in vertically on the lid still of stirred tank, motor shaft connects with the rotating shaft of an emulsifying head by a shaft coupling, and the rotor of this rotating shaft and emulsifying head is fixedly connected, thereby drives the plug knife work of emulsifying head; In this rotating shaft, be with a hollow rotating shaft and a hollow worm-wheel shaft, hollow rotating shaft and hollow worm-wheel shaft abutting end are fixedly connected, between rotating shaft outer surface and the hollow rotating shaft inner surface or between rotating shaft outer surface and the hollow worm-wheel shaft inner surface rolling bearing is being set, to keep coaxial line running between rotating shaft and hollow rotating shaft, the worm-wheel shaft; On hollow rotating shaft or worm-wheel shaft outer surface, be with rolling bearing, this rolling bearing is fixedly mounted on the bearing block, bearing block is fixed on frame or worm screw punch-out equipment frame or their fixed coupling unit, frame or worm screw punch-out equipment frame are fixed on the kettle cover, can make the hollow rotating shaft axis and stir the kettle central lines in the still covering position by regulating frame.Establish a motor in addition with the orientation of above-mentioned motor quadrature outside kettle, the rotating shaft of this motor links by shaft coupling and a worm screw, and worm screw drives this hollow rotating shaft slow rotation with the worm gear composition Worm and worm-wheel gearing that is fixed on the hollow worm-wheel shaft; The stator of emulsifying head is set in the lower end of described hollow rotating shaft, and the rotor of this stator and emulsifying head is formed emulsifying head, during this emulsifying head work material is carried out emulsification and stirring.Because the hollow rotating shaft rotating speed is very little, general below 30 rev/mins, the rotation direction of hollow rotating shaft is identical with emulsifying head rotating shaft rotation direction or all can on the contrary.Be fixed with gate stirrer on the hollow rotating shaft of slow rotation, kettle is carried out scraping, simultaneously the material in the kettle is stirred.Be provided with mechanical sealing member between the rotating shaft of emulsifying head and the stator seat sliding surface, prevent that the material in the still from entering in the hollow rotating shaft; Be provided with mechanical sealing member in the cavity between hollow rotating shaft and the seal cover, prevent that the material volatile component from entering in the worm screw punch-out equipment frame.

The design compares with the compound mixer of the different axis on the existing market, and more compact structure, emulsifying power are higher, compare with this external kind equipment, and structure is simpler, safeguards more convenient.

Further specify below in conjunction with accompanying drawing.

Fig. 1 is the front view of composite stirring equipment of the design's coaxial line.

Fig. 2 is the A--A cutaway view of Fig. 1.

Fig. 3 is the C--C cutaway view of Fig. 1.

Fig. 4 is the enlarged drawing of Fig. 1 emulsifying head 28.

Fig. 5 is the part enlarged drawing of Fig. 1.

Fig. 1, Fig. 5, the rotating shaft of motor 1 is fixedly connected by the rotating shaft 30 of shaft coupling 4 with emulsifying head 28, and rotating shaft 30 connects the rotor 69 (Fig. 4) of emulsifying head 28, drives emulsifying head work when motor rotates.Another motor 41 connects worm screw 40 by shaft coupling 59 (Fig. 2), and worm screw drives worm gear 10 and rotates, and is fixed on the worm-wheel shaft 42 worm gear 10 coaxial lines, rotates thereby drive worm-wheel shaft 42.Rotating shaft 30 outsides are with hollow worm-wheel shaft 42 and hollow rotating shaft 29, are provided with rolling bearing between rotating shaft and worm-wheel shaft, the hollow rotating shaft, can rotate by coaxial line, and their abutting end respectively has the flange 25,33 of welding, and is fixedly connected with screw.Like this, the rotation of motor 41 just is converted to slowly running of hollow rotating shaft 29, and its rotating speed is generally 10-30 rev/min.

Fig. 2, Fig. 5, more particularly, worm-wheel shaft 42 passes the endoporus of worm gear seat 11, and prevent that with key 39 the worm gear seat from rotating around worm-wheel shaft, be fixed with worm gear 10 (the worm gear inner hole sleeve is on the worm gear seat) on the worm gear seat 11, on the circumferential slots of the two combination, be drilled with a plurality of equally distributed screw holes, and fixing with screw 9, preventing that worm gear from rotating, and can be for convenience detach.Another motor 41 usefulness screws are fixed on the endless screw support 54, its rotating shaft and motor 1 axis quadrature, and by shaft coupling 59 connection worm screws 40, worm screw 40 and worm gear 10 are formed Worm and worm-wheel gearing, slowly run by this transmission mechanism driving worm-wheel shaft 42 and hollow rotating shaft 29 when motor 41 rotates like this.

The lower end of hollow rotating shaft is connected with gate stirrer, see Fig. 1, Fig. 3, two arm seats are encircled hollow rotating shaft 29, arm seat is joined and is drilled with relative hole, the end of cantilever 21 and the arm seat hole position that matches also is drilled with the hole, the installing hole that passes two arm seats 32 and cantilever 21 with screw 19 is fastening, makes arm seat hug hollow rotating shaft 29, simultaneously cantilever 21 is clamped and fixes; Be drilled with the hole on the arm seat 32, arm seat be fixed on the hollow rotating shaft with screw 22.The end of cantilever is fixed with the scraper plate 20 that polytetrafluoroethylmaterial material is made with screw, and the still wall that scraper plate 20 is close to kettle 31 during work is made circular motion, and the material on the still wall is scraped.

Fig. 1, Fig. 5, motor 1 and frame 3 are fixed by motor flange 49, frame flange 48 usefulness screws respectively; Worm gear case frame 8, bearing block 6 and frame 3 are respectively by flange 7, bearing block 6 (join be drilled with the hole with flange) and flange 45 and pass hole corresponding on flange hole and the bearing block with screw and connect.Worm gear case frame 8 and bearing block 38 are fixedly connected (as welding), be screwed connection between bearing block 38 and the seal cover 23, seal cover 23 is done revolving body in inverted "convex" shape, the central lines of the center line of revolving body and hollow rotating shaft 42, the surface of revolution of seal cover just in time matches with the inner surface of the center hole of kettle cover 15, and (Circularhole diameter and tactical diameter equate, " protruding " font bearing block pours in the circular hole), like this, hollow rotating shaft 42 keeps central lines with kettle.

Fig. 2, motor 41 and frame 60 are fixedly connected by flange 62, flange 61 usefulness screws respectively; One end of endless screw support 54 is screwed flange 57 (this flange is also made the seal cover of bearing 55), and this flange connects with flange 58 with screw again, thereby endless screw support 54 and frame 60 are fixedly connected.Endless screw support 54 welds or is connected on the worm screw punch-out equipment frame 8 with screw.Respectively there are a thrust bearing 55 and 51 in the two ends of worm screw 40, and the inner ring of bearing is enclosed within on the worm shaft, and then there is same diameter the outer ring with the interior circular hole that endless screw support 54 two ends process, and the outer ring is placed in the hole.Bearing 51 is by the boss and bearing cap 52 axial location of worm screw 40 right-hand members, and bearing cap 52 is fastened on the end of endless screw support 54 by screw; Also by the boss and flange 57 axial location of worm screw 40 left ends, flange 57 is not only made flange but also make bearing cap to bearing 55, by screw 56 it is fastened on the end of endless screw support.

The work of this agitating device the time need keep hollow rotating shaft 29, worm-wheel shaft 42 and rotating shaft 30 coaxial line constantly, and with the central lines of kettle 31.Fig. 2, thus, worm-wheel shaft passes the inner ring of rolling bearing 43 and rolling bearing 12, and there is the rapid little step of a diameter upper end of worm-wheel shaft, just holds the inner ring of bearing 43; The outer ring of rolling bearing is then fixed by bearing block, and the bearing block of rolling bearing 43 is upper ends of bearing block 6; The bearing block of rolling bearing 12 is bottoms of 38, and bearing cap is a seal cover 23, and the outer ring of rolling bearing 12 is close in its upper surface.The two ends up and down that rolling bearing 43 and 12 is divided into worm gear separate certain distance.Equally, the inner ring of rolling bearing 34,46 is passed in rotating shaft 30, and the outer ring of rolling bearing 34 then places with hollow worm-wheel shaft 42 and is in the bearing block 24 of an integral body, is close to the outer ring of this bearing by the upper surface of the flange 33 of hollow rotating shaft 29 and forms bearing cap; The outer ring of bearing 46 places in the bearing block 44, and bearing block is fixed on the upper end of bearing block 6 by screw.

Fig. 4, the lower end welding stator seat 70 of hollow rotating shaft 29, this stator seat is fixed with stator 66 with screw 64.The centre bore of stator seat 70 is passed in emulsifying head rotating shaft 30, and nut 68 is fixed on the lower end of rotating shaft 30 with rotator seat 69, and stop pin 71 can prevent that rotator seat from rotating.Be welded with plug knife 67 on the rotator seat, material throws away from stator hole 65 under the effect of plug knife during work.

Fig. 1, Fig. 5 are provided with mechanical sealing member 72 between the sliding surface of rotating shaft 30 and stator seat 70, prevent that material from entering the space of 29 li of hollow rotating shafts; In the lower end of seal cover 23 and the cavity between the worm-wheel shaft, be provided with mechanical sealing member 36, prevent that the material volatilization from entering 8 li on worm screw punch-out equipment frame.

Among Fig. 1, flange 16 is welded on the openend of kettle 31, and connects by the screw flange with kettle cover 15.Kettle cover 15 is provided with charge pipe 13 and gate valve 14, is provided with discharge nozzle 27 and gate valve 26 at the bottom of the still.

The described gate stirrer of the design the simplest situation of only drawing also can will stir frame in fact and link up in the bottom, particularly the geometry at the bottom of the still is made camber, also can fully be stirred at the bottom of making still.Kettle cover can also be vaulted, connect vavuum pump or booster pump material is stirred under vacuum or pressure.Still can also be placed in the chuck in addition, carry out water-bath cooling or heating.

Claims (2)

1, a kind ofly is used to stir and the composite stirring equipment of emulsified fluid medium, mainly form by the kettle of gate stirrer and high-shear emulsifying device and splendid attire fluid media (medium), it is characterized in that: the rotating shaft of motor 1 is by rotating shaft 30 fixed connections of a shaft coupling 4 with emulsifying head 28, the rotor fixed connection of rotating shaft 30 and emulsifying head, thus the rotor that drives emulsifying head rotates; The outer surface of rotating shaft 30 is with at least two rolling bearings, wherein the outer ring of at least one rolling bearing is enclosed within the inner chamber of hollow worm-wheel shaft 42, the outer ring of another rolling bearing then is fixed on the fixed coupling unit of frame 3 or frame 3, makes the 30 coaxial lines rotation around the shaft of worm-wheel shaft 42 or hollow rotating shaft 29; Another motor 41 links by shaft coupling 59 and worm screw 40, thereby this worm screw drives hollow worm-wheel shaft rotation with the worm gear composition worm and gear transmission that is fixed on the hollow worm-wheel shaft, thereby drive hollow rotating shaft rotation with hollow worm-wheel shaft fixed connection, rotate thereby drive gate stirrer fixing on hollow rotating shaft, material is stirred; The stator of emulsifying head is set in the lower end of described hollow rotating shaft, and the rotor of this stator and emulsifying head is formed emulsifying head, during this emulsifying head work material is carried out emulsification and stirring.

2, according to the described composite stirring equipment of claim 1, it is characterized in that: on hollow rotating shaft 29 or worm-wheel shaft 42 outer surfaces, be with rolling bearing, this rolling bearing is fixedly mounted on the bearing block 38, this bearing block is fixed on frame or worm screw punch-out equipment frame or their the fixed connection spare, frame or worm screw punch-out equipment frame or their fixed connection spare are fixed on the kettle cover 15, can make hollow rotating shaft axis and the central lines that stirs kettle 31 in the still covering position by regulating frame or worm screw punch-out equipment frame or their fixed connection spare.

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