CN101264461A

CN101264461A - Roller type superfine grinding pump

Info

Publication number: CN101264461A
Application number: CNA2008100104452A
Authority: CN
Inventors: 王曰信
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-02-17
Filing date: 2008-02-17
Publication date: 2008-09-17

Abstract

The invention relates to a roller type ultramicro grinding pump, which is the main working mainframe used in an ultramicro grinder for the ultramicro refined processing for colloidal materials and can be applied for ultra-fine crushing and grinding of fluids with solid particles in the technical fields of food, chemical industry, and pharmacy. The roller type ultramicro grinding pump comprises a plurality of stator shells, a plurality of rotors, a plurality of rollers, a port plate, a plurality of pump covers and a drive shaft, which is characterized in that: a plurality of rotors with rollers on the circumference are sleeved on the drive shaft, each rotor is positioned in a stator shell with the eccentric magnitude size of e; a port plate is arranged between the two sets of rotors and stator shells; the sets of stator shells, the sets of rotors, the port plate, the front pump cover and rear pump cover are connected and assembled in series to form the roller type ultramicro grinding pump; and a plurality of cooling water channels communicated with each other are arranged on the pump covers, the stator shells and the port plate used for water-cooling the temperature rise when the pump is grinding.

Description

Roller type superfine grinding pump

Affiliated technical field

Roller type superfine grinding pump is a kind of groundwork main frame that is used for the colloid material is carried out ultra micro refinement processing in ultramicro-grinder.Can be applied in the fields such as food, chemical industry, pharmacy the fluid that contains solid particle be carried out the broken of ultra-fineization and grind.

Background technology

At present solid particle is carried out the grinding disintegrating apparatus of ultra-fineization aspect broken have a variety of, for example: ball mill, rubber mill, airslide disintegrating mill, homogenizer and high shear machine etc.Wherein ball mill, rubber mill and high shear machine are a kind ofly with mechanical kinetic energy the solid particle that is broken to be imposed shearing force, frictional force and mechanical vibration force and realize the broken refinement of material.Ball mill is mainly used in the fragmentation of dry powder mode.And rubber mill and high shear machine grind fragmentation in wet type colloid mode.Because their motion mode and structural principle are limit, these two kinds of disintegrating machines rise between the stator of fragmentation and rotor must leave certain slight gap.The material that is broken is during through this gap, and the high speed relative motion between rotor has applied strong shearing force and frictional force to particle and made the material dispersion and fining.Yet the zero clearance can not be accomplished in the rotor gap, thereby after it reaches certain refinement precision, just further refinement.Can only accomplish the breaking capacity about 1 micron at present, the processing that realize nanometer difficulty is accomplished.

Summary of the invention

In order to accomplish that the zero clearance imposes active force to material to the processing of material particles with mechanical system realization nanometer.Material is refine to less than the effect that can continue it is imposed the power such as extruding, shearing and friction of machinery behind the micron particles, and also do not hurt the moving component of machinery itself, thereby reach nano level processing material.The technical scheme that roller type superfine grinding pump of the present invention adopted be based on Hydraulic Field in the vane pump that widely uses operation principle roughly the same.Different is that a blade exchanging that is contained in the blade pump rotor is the cylinder roller.When rotor rotates at a high speed in the track ring of off-centre setting, except can as vane pump, having constantly continuously fluid in mouth piece sucks pump chamber and is after compression entered function the external pipe to fluid from delivery side of pump again with certain pressure, will promote the cylinder roller that rotor slot includes dress in the time of the rotor high-speed rotation and on the track ring inwall, roll.The cylinder roller can apply the fragmentation power of extruding, shearing and grinding to particle in the fluid between track ring and roller when rolling.The suction inlet of roller type superfine grinding pump is connected with outer loading hopper.Delivery side of pump and outside discharge valve and the external circulation line that is communicated with loading hopper be connected as one just constituted ultramicro-grinder.This grinder can make the dosed fluid material circulate repeatedly continuously.Simultaneously the solid particle in the material also constantly is subjected to extruding, shearing and the grinding of roller and more and more refinement.Solid particle after a period of time in the fluid can be refine to nanoscale.In order to improve the grinding usefulness of grinding pump of the present invention, in a pump housing, be provided with many cover stator, rotor and roller structures and be cascaded and rotate simultaneously with n rotor of an axle input power drive.Because of z roller is housed on each rotor, will has n*z roller when turning around and simultaneously material be pushed a circle when driving shaft revolves.Usefulness than single lobe pump has improved n doubly thus.Roller type superfine grinding pump of the present invention mainly is made up of stator case, rotor, valve plate, pump cover and driving shaft.Suit on the driving shaft of flat key has been housed has contained the rotor of a plurality of cylinder rollers on a plurality of circumference, each rotor places the stator case that has the offset that is of a size of e with it and the annular track ring is housed.The little thickness of the thickness of stator case and track ring greater than rotor and roller.The diameter of track ring adds 2e greater than the diameter of rotor.The diameter of roller is more than or equal to 4e.With thin flat plate shape valve plate every cover rotor, stator case are separated.The offset direction of adjacent stator case is opposite.All have a circular-arc flow groove and a correspondence on each valve plate and be positioned at the space that track ring, rotor and roller surround less than 180 degree.This groove is as transmission rotor and roller suction or extruding and discharge the passage of fluid therebetween.Flow notch orientation on the adjacent valve plate is also opposite.The front and back pump cover is clipped in many group stator case, rotor, valve plate therebetween and with bolt and alignment pin they is assembled into one, and has constituted a multistage roller type grinding pump.The two ends of driving shaft are contained in the dead eye of front and back pump cover with bearing.Before and after correspond respectively to the suction and the discharging area of rotor and roller less than 180 degree circular arc input and output material roads on the pump cover.The screw thread mouth of offering on the pump cover of front and back is communicated with circular arc input and output material road respectively, is used for connecting with exterior line.All offered the cooling-water duct space of four circular arcs between each stator case and the track ring and on the valve plate.The screw thread mouth that can connect that respectively has the turnover water channel space of a circular arc and communicate on the pump cover of front and back with the external refrigeration water lines with it.Pump cover, stator case, these water channels of the combined integrated back of valve plate all communicate.The input cooling water can reduce the work temperature rise of the pump housing.It is gapless plaing between the track ring of crushing grinding effect and the roller in the roller type superfine grinding pump of the present invention.The centrifugal force of pressing to the track ring inwall that roller produces under the high speed rotor rotated promotes can seamlessly push therebetween contained solid particle in the fluid.The frictional force that exists between roller and track ring can also can be carried out gapless broken refinement to material to the effect that the material generation is sheared and ground simultaneously.After this pump inserted in outer circulation hopper and the pipeline, continuous several times was carried circularly repeatedly and is ground for a long time, can grind solid particle contained in the dosed fluid and refine to nanoscale.The structure that has adopted multi-stage rotor and stator case to be in series in the structure has increased to grind and has paid, and the grinding work efficiency has been improved widely.

Description of drawings

Accompanying drawing 1 is that the B-B of roller type superfine grinding pump cuts structural representation open.

Accompanying drawing 2 is that the C-C of roller type superfine grinding pump cuts structural representation open.

Accompanying drawing 3 is that the A-A of roller type superfine grinding pump cuts structural representation open.

Accompanying drawing 4 is that the D-D of roller type superfine grinding pump cuts structural representation open.

Accompanying drawing 5 is E-E partly cut-away structural representations of roller type superfine grinding pump.

Accompanying drawing 6 is that the F-F of roller type superfine grinding pump cuts structural representation open.

Accompanying drawing 7 is fundamental diagrams that roller type superfine grinding pump inserts external circulating system.

1 stator case among the figure, 2 left water channels, 3 times suction areas, 4 fore-sets, 5 rollers, discharge area on 6,7 water-supply lines, 8 long flat keys, 9 driving shafts, 10 bolts, 11 right water channels, 12 alignment pins, 13 rotors, 14 track rings, 15 sewers, suction area on 16,17 times discharge areas, 18 bearings, 19 lip-type seal circle I, 20 delivery ports, 21 springs, flow groove on 22,23, the circular arc feed channel, 24 front pump covers, 25, charging aperture, 26 nuts, 27 screws, gland before 28,29 flat keys, 30 lip-type seal circle II, 31 circular arc inlet channels, 32 water inlets, 33 valve plates, 34 times flow grooves, 35 circular arc water outlets, 36 circular arc discharging roads, 37 discharge gates, 38 rear pump covers, 39 rear pressing covers, 40 glib-tonged persons, 41 transition water channels, 42 roller type superfine grinding pumps, 43 cooling backwater pipelines, 44 loading hoppers, 45 shaft couplings knot, 46 motors, 47 water tanks, 48 cooling inlet pipelines, 49 tubing pumps, 50 frames, 51 blow-off valves, 52 circulating reflux pipelines.

The specific embodiment

Provide further specifying of roller type superfine grinding pump of the present invention below in conjunction with description to drawings and Examples.

Referring to Fig. 1, Fig. 2 and Fig. 3, a plurality of rotors 13 are sleeved on the driving shaft 9 that long flat key 8 is housed.In the axis hole of the two ends of driving shaft 9

pump cover

24,38 before and after bearing 18 is contained in.Be used for the grease of seal lubrication bearing 18 before and after two lip-type seal circle I 19 of cover are contained in respectively on the axle 9 in the axis hole of pump cover, stop it to enter in the pump chamber.Front and

back gland

28,39 usefulness screws 27 are contained on the

pump cover

24,38 of front and back, and it shifts out pump cover to push down bearing 18 preventions.The lip-type seal circle II30 that adorns in preceding gland 28 inner chambers can stop the overhanging end of lubricating grease direct-axis 9 to flow out.The flat key 29 of axle on 9 is used for connecting with outer actuating unit transmission of drive force.The a plurality of semicircular arc roller of the garden Zhou Kaiyou notch of each rotor 13.Settle a roller 5 in each notch.Spring 21 and fore-set 4 are housed in the bottom circular aperture of each rotor notch.Each rotor 13 all is arranged in the inner chamber of stator case 1 that inner ring sets subring 14.The little thickness of the thickness of stator case 1 and track ring 14 greater than rotor 13 and roller 5.Rotor 13 and roller 5 can rotate in track ring.Cylindrical at the effect bottom roller 5 of spring 21 and fore-set 4 contacts with the inwall of track ring 14.The offset that one size e is arranged between each track ring 14 and the rotor 13.The internal diameter of track ring 14 is greater than the size that rotor 13 external diameters add 2e.The size of roller 5 is greater than the size that equals 4e.Between per two stator case 1, thin flat plate shape valve plate 33 is housed all.The eccentric direction of adjacent stators shell antithesis.Have on the adjacent valve plate 33 less than the orientation of 180 degree circular

arc flow grooves

22,34 also antithesis.Referring to Fig. 1, shown in Figure 2, stator case is opposite with the eccentric amount e direction of rotor.When rotor 13 clockwise rotated, suction area and discharge area were also opposite among two figure.Be respectively down suction area 3, last suction area 16 and last discharge area 6, following discharge area 17.Roller 5 is pressed in tightly on the inwall of track ring 14 on its face of cylinder under the action of centrifugal force of fore-set 4 and rotation at a high speed and rolls.The zone increases gradually at the volume of

suction area

16,3 up and down between per two rollers 5, track ring 14 and the rotor 13, and makes this zone form negative pressuren zone.Negative pressure can make fluid foods enter in the pump chamber through the groove of flow up and down 22,34 of valve plate 33, circular arc feed channel 23 and the charging aperture 25 on the front pump cover 24.Be in simultaneously that the volume between adjacent rollers 5, track ring 14 and the rotor 13 diminishes gradually in the

material discharge region

6,16 up and down, and the fluid foods that is in therebetween push away, through the groove of flow up and down 22,34 of valve plate 33, the circular arc discharging road 36 on the rear pump cover 38 and the discharge gate 37 discharge pump chambers that are communicated with it.Referring to Fig. 4, the passing away that is clipped in following flow groove 34 in the valve plate 33 in the middle of two rotors 13 and is simultaneously upper level rotor roller is again the suction passage of next stage rotor roller.Phase difference 180 degree of the

flow notch

22,34 of adjacent valve plate.And

notch

22,34 correspondence respectively is positioned at the space that is called as suction up and down or discharge area that track ring 14, rotor 13 and roller 5 are surrounded.The radius of its arc groove equals the radius of rotor 13.Referring to Fig. 6, the circular arc feed channel 23 corresponding last suction areas 16 that are positioned at chopped-off head rotor 13 rollers 5 that communicate with charging aperture 25 in the front pump cover 24.The circular arc discharging road 36 corresponding following discharge areas 17 that are positioned at final stage rotor 13 rollers 5 that communicate with discharge gate 37 in the rear pump cover 38.A plurality of valve plates 33, rotor 13, stator case 1 and front and

back pump cover

24,38 all use stud 10, nut 26 and alignment pin 12 series connection to be assembled into one, and have constituted multistage grinding pump.After being assembled into one, the

cooling water channel

2,7,11 and 15 of the circular arc between valve plate 33 and stator case 1 and track ring 14 all be connected and with front pump cover 24 on circular arc inlet channel 31, water inlet 32 and rear pump cover 38 on circular arc water outlet 35, delivery port 20 be communicated with.Referring to the transition water channel 41 that has connection up and down between the water channel at the place, 4 angles of stator case 1 that constitutes between Fig. 5 every stator case 1 and the track ring 14 it is communicated with each other.Feed the temperature rise that produces when cooling water can reduce this grinding pump work in these water channels, help processing heat sensitive material.Be used for to bearing 18 in notes lubricating grease at the glib-tonged person of installing on the rear pressing cover 39 40.Referring to Fig. 7, the roller type superfine grinding pump 42 that assembles is connected with motor 46 and is contained in altogether on the frame 50 through shaft coupling knot 45.Charging aperture 25 tops of pump 42 are connecting loading hopper 44.The discharge gate 37 of pump 42 is connected with circulating reflux pipeline 52.Blow-off valve 51 is housed on the pipeline 52, is used to discharge the material that processes.The top of pipeline 52 is communicated with the upper end of loading hopper 44.Close blow-off valve 51; material in the loading hopper 44 sucks in the chamber that is subjected to multi-stage rotor 13, roller 5 and track ring 14 in the pump chambers continuously from the charging aperture 25 of pump 42 and carries; and being subjected to rolling, shear and grinding of roller 5 simultaneously, contained particle can be by refinement in the fluid.Material from the discharge gate 37 of pump 42 and circulating reflux pipeline 52 return loading hopper 44 and repeatedly circulation enter in pump 42 chambeies.After a period of time, the more and more refinement of quantitative material in the loading hopper 44, even reach nano-grade size.Opening blow-off valve 51 can emit ground material.When continuously grinding, a large amount of mechanical energy can make the material and the pump housing heat up.On the bottom of frame 50 water tank 47, tubing pump 49 is housed.Water in the water tank 47 cools off the pump housing through tubing pump 49 and inlet channel 48 in the water inlet 32 of pump 42 enters water channel in the pump chamber.Water after heating up in the pump chamber is got back in the water tank 47 with the cooling backwater pipeline 43 of water tank 47 through the delivery port 20 of water channel.Reduce pump body temperature and take away the processing that heat helps heat sensitive material with cooling water.

Claims

1. roller type superfine grinding pump mainly is by stator case, rotor, valve plate, pump cover and driving shaft are formed, it is characterized in that: suit on the driving shaft of flat key has been housed has contained the rotor of a plurality of cylinder rollers on many covers circumference, each rotor places has offset that is of a size of e and the stator case that circular track ring is housed with it, two cover rotors, be provided with the valve plate of Boping template between the stator case, adjacent stator case is opposite with offset direction between rotor, with bolt and the many covers of alignment pin handle stator case, rotor, valve plate and the series connection of front and back pump cover are assembled into one, and the two ends of driving shaft are contained in the dead eye of front and back pump cover with bearing.

2. roller type superfine grinding pump according to claim 1, it is characterized in that: the internal diameter of track ring adds 2e greater than the diameter of rotor, the diameter of roller is more than or equal to 4e, the little thickness greater than rotor and roller of the thickness of stator case and track ring accompanies four circular-arc cooling water channel spaces between stator case and the track ring.

3. roller type superfine grinding pump according to claim 1, it is characterized in that: all have one on each valve plate less than circular-arc flow groove and four the circular-arc cooling-water duct spaces of 180 degree, flow groove all correspondence is positioned at the space that track ring, rotor and roller surround, the arc radius of flow groove equals the radius of rotor, and the orientation of the flow groove of adjacent valve plate antithesis.

4. roller type superfine grinding pump according to claim 1, it is characterized in that: the space that is called as suction area that track ring, rotor, the roller adjacent with it with the circular arc feed channel screw thread feeding inlet that offer on the front pump cover surrounds communicates, and the circular arc discharging road of offering on the rear pump cover that communicates with the screw thread discharging opening communicates with the space that is called as discharge area that adjacent track ring, rotor, roller surrounds.

5. roller type superfine grinding pump according to claim 1, it is characterized in that: the turnover water channel that all respectively is provided with a circular arc on the pump cover of front and back, the circular arc cooling water channel of the combined integrated back of all track rings and stator case, valve plate and front and back pump cover among them all communicates, and communicates with intake-outlet on the pump cover of front and back.