CN1009166B

CN1009166B - Mixing stirring device

Info

Publication number: CN1009166B
Application number: CN87105880A
Authority: CN
Inventors: 平林利康; 穴田信二
Original assignee: JGC Corp
Current assignee: JGC Corp
Priority date: 1986-09-01
Filing date: 1987-08-25
Publication date: 1990-08-15
Also published as: CN87105880A; JPH0559781B2; JPS6362532A

Abstract

To enhance mixing efficiency by providing more than one pair of revolving shafts in parallel longitudinally to a vessel which has a specified length from a charging port to a discharging port and is nearly horizontally installed. Solid material M charged into the vessel 1 from a charging port 2 is forcedly pushed forward by a spiral blade 8a provided on 2nd revolving shafts 6a, 6b rotated in low speed in a high viscous mixing area A, and is agitated and mixed by paddle type blades 9 provided on the same revolving shafts. And the material is passed under a 1st, 2nd and 3rd baffles 13a, 13b and 13c, and is moved from the high viscous mixing area A to medium viscous mixing area B, to low viscous mixing area C and to debubble mixing area D, in order, and is discharged from a discharging port 3 to the outside, while the material is further agitated, mixed and fluidized to form a fluidized material R of a specified viscosity.

Description

Mixing stirring device

The invention relates to micro mist shape coal and make coal-aqueous mixtures, and the like the suitable mixing stirring device that various solid flowization are used.

Solid of various powders and so on and aqueous medium, fluidizing reagent etc. mixes into the occasion of liquid state, the a plurality of agitators of general use, one side prevents the mutual mixing of phase transformation thing, one side mixes, this is for preventing that mixing efficiency from descending, the rising of installation cost expenditure on power, and all unfavorable in the running.In addition, in the occasion with kneading machine (KNEADER) Forced Mixing, device can densification, but power consumption and installation cost increase, and the wearing and tearing of device also increase, and these all are shortcomings.

In view of the foregoing, the purpose of this invention is to provide a kind of mixing stirring device, it simultaneously prevents the mutual mixing of phase transformation thing, one side is directly mixed the object under each phase state respectively separately, like this, make to mix engineering simplification, installation cost, expenditure on power are reduced.

In order to achieve the above object, of the present invention solid material is mixed, little by little become in the mixing stirring device of liquid state, have charging door and discharging opening, certain length is arranged from the charging door to the discharging opening, simultaneously, the inside of the container of placing in approximate horizontal, at least one pair of gyroaxis along the longitudinal extension of this container, arranging mutually almost parallel, in addition, the feed rate make above-mentioned discharging oral-lateral is set on the above-mentioned gyroaxis will make above-mentioned material simultaneously send the stirring vane that one side mixes from charging door to discharging opening than the feed rate of above-mentioned charging oral-lateral hurry up, and, in the inside of said vesse,, the internal separation of this container is become a plurality of zones along the transport direction of above-mentioned material, state variation corresponding to above-mentioned material is provided with the baffle plate that formation mixes the zone, also is provided with the adjustment means of the hold-up of adjusting the above-mentioned material that becomes the liquid state after mixing of discharging.

In the above-described configuration, the solid material of to container, packing into from charging door, mix by the stirring vane that is arranged on the rotating gyroaxis, little by little become the liquid state, discharge by discharging opening, and the inside of container, along the transport direction of material, be divided into a plurality of zones that mix with baffle plate, and, utilize stirring vane, the feed rate of material is increased at the discharging oral-lateral, therefore liquid can not flow backwards when carrying out the liquidation of material, difference mixes the zone easily, and the object of different phases can not mix mutually, therefore, mixing power acts in the material equably, and stirring efficiency is improved.Also have, utilize the adjustment means that hold-up is adjusted, and has an effect of utilizing stirring vane that feed rate is improved, the effect of utilizing baffle plate that the liquid level of liquid is kept, mix and carry out medium viscosity and reduce the Mixed Zone liquid level is increased, therefore, the mixing torque in each Mixed Zone, constant further improves stirring efficiency on the whole.

Fig. 1 is the cross-sectional side view of one embodiment of the invention,

Fig. 2 is the same horizontal sectional view,

Fig. 3 is the sectional drawing of III among Fig. 2-III direction of arrow.

An embodiment of mixing stirring device of the present invention describes referring to figs. 1 through Fig. 3.

1 is the container of the tubular that flatly is being provided with haply among the figure, be provided with the charging door 2 to the inside of this container 1 charging usefulness on the top of the rear end of this container 1 1a, be provided with the discharging opening 3 of the liquid R after the solid material M phase transformation being discharged usefulness to the outside in the bottom of front end 1b solid material M.The 1st gyroaxis 4a, the 4b that is extending pair of right and left along longitudinally in the inside of said vesse 1 is arranged to running through two ends 1a, the 1b end face of container 1, and the two ends that protrude from container 1 outside of the 1st gyroaxis 4a, 4b can supported freely to rotate with bearing 5,5.And, on the protruding end of the 1st gyroaxis 4a, 4b, be equipped with the 1st gyroaxis 4a, 4b by make shown in Fig. 3 sectional drawing the 1st right-hand gyroaxis 4a to clockwise direction and the 1st gyroaxis 4b of left to the drive unit (not shown) of (this can be described as the outward turning direction) high speed rotary counterclockwise.In addition, in the rear end of said vesse 1 1a side, at above-mentioned the 1st gyroaxis 4a, on the position of the rear end side of 4b relatively freely to rotate suit a pair of the 2nd gyroaxis 6a, 6b, they pass the end face foreign side of the rear end 1a of container 1, can support freely to rotate by bearing 7, the 2nd gyroaxis 6a, be equipped with on the protuberance of 6b the 2nd gyroaxis 6a, 6b with the 1st gyroaxis 4a, the rotating drive unit (not shown) of the direction that 4b is opposite (this can be described as the inward turning direction) low speed and, above-mentioned the 2nd gyroaxis 6a, the position that is positioned at container 1 of 6b, make base end part m facing to charging door 2 bottoms, m and with this base end part m, the leading section n in close the place ahead that m is roughly isometric, n, at this base end part m, fixing helical blade 8a on the peripheral part of m, 8a, at leading section n, assembling the stirring vane 9 of a plurality of pulpous states on the peripheral part of n with certain axial spacing ... above-mentioned helical blade 8a, 8a is arranged to along the 2nd gyroaxis 6a, the axis direction of the 6b half pitch that staggers mutually, simultaneously, at the axis direction of gyroaxis, mutual close position overlaps each other.The stirring vane 9 of above-mentioned oar shape ... be on the front end of the wrist 9a that setting-in on the 2nd gyroaxis 6a, the 6b, radially reach axial extended surface (towards the face of gyratory directions) facing to gyroaxis, tilt fixing paddle board 9b with certain gradient and axis direction, on the same position of the axis direction of gyroaxis, 2 groups of stirring

vanes

9,9 are being adorned at 180 ° interval circumferentially to be separated by.Like this, the stirring vane 9 of the stirring vane 9 of one side's the 2nd gyroaxis 6a and the 2nd gyroaxis 6b of other party is identical all in the assembly building distance of axis direction, yet generally, at gyroaxis 6a, half pitch staggers on the axis direction of 6b, also have, the track of the front end of above-mentioned blade is overlapping, and gyroaxis 6a, the circumferential rigging position of 6b is to stagger 45 ° mutually in addition, at above-mentioned the 1st gyroaxis 4a, 4b is arranged on the peripheral part at the position that by the 2nd gyroaxis suit of container 1, by with the stirring vane 10 of the same a plurality of oar shapes formed by wrist 10a and paddle board 10b of above-mentioned stirring vane 9 ... they are along gyroaxis 4a, the axis direction of 4b is with certain assembly building distance, and each paddle board 10b is tilted with certain gradient and axis direction and installing facing to the axial extended surface that radially reaches of gyroaxis.These stirring vanes 10 also are on the same position of the axis direction of gyroaxis, 180 ° interval is being installed 2 groups circumferentially to be separated by, the stirring vane 10 of the stirring vane 10 of one side's the 1st gyroaxis 4a and the 1st gyroaxis 4b of other party is identical all in the assembly building distance of axis direction, yet generally, in the axis direction half pitch that staggers, also have, as shown in Figure 3, the track of the front end of above-mentioned blade is overlapping, and the circumferential rigging position of gyroaxis 4a, 4b is to stagger 45 ° mutually.

Also have, a plurality of baffle plates be housed in the inside of said vesse 1, they the inside of container 1 be divided into along the longitudinal a plurality of zones (being 4 zones among the figure) correspondence the state variation of material form a plurality of zones that mix.Promptly, installing the 1st, the 2nd, the 3rd fixed head 11a, 11b, 11c in the inside of said vesse 1, have above them and allow gyroaxis 4a, 4b pass the through hole of usefulness, two edge are fixed on container 1 left and right sides medial surface about they each, they are separated with certain spacing along the longitudinally of container 1, and under the inside of container 1 quadrate part with certain spacing 1 cross-section separating of container.Also have on the medial surface of the left and right sides of container 1, frame unit 12a, the 12b of each pair of right and left, 12c with from this each fixed head 11a, 11b, 11c to the rear (being the left side Fig. 1) certain interval and fixing, between these fixed heads and frame unit, the the 1st, the 2nd, the 3rd baffle plate 13a, 13b, the 13C of rectangle in the intercalation of easy on and off ground, and the slotted hole that has the above-below direction extension on these baffle plates passes usefulness by gyroaxis.Each is fixing pair of right and left lever 14a, 14b, 14c on this each baffle plate 13a, 13b, 13c, and their axis is an above-below direction, be upward through container 1 above.And the manual or mechanical effect of usefulness by this each lever 14a, 14b, 14c moves up and down, and the upper-lower position of each baffle plate 13a, 13b, 13c is adjusted, and the interval between the bottom surface of container 1 and each baffle plate just can be adjusted.Also have,, on the position of discharging opening 3 adjacency, the fixed dam 15 that the cross-section one-tenth in the inside of container 1 is had opening at following quadrate part is housed in the inside of said vesse 1.And, zone from the charging door 2 of container 1 to above-mentioned the 1st baffle plate 13a is divided into high viscosity Mixed Zone A, zone between the 1st baffle plate 13a and the 2nd baffle plate 13b is divided into medium viscosity Mixed Zone B, zone between the 2nd baffle plate 13b and the 3rd baffle plate 13c is divided into low viscosity Mixed Zone C, more has the zone between the 3rd baffle plate 13c and the fixed dam 15 to be divided into deaeration Mixed Zone D.

Stirring vane 9 in above-mentioned Mixed Zone A, B, C ..., 10 ... the assembling gradient be: little in above-mentioned high viscosity Mixed Zone A of the ratio in the B of medium viscosity Mixed Zone, and little in above-mentioned medium viscosity Mixed Zone B of the ratio in the C of low viscosity Mixed Zone, thus, the result that the compression area of stirring vane increases makes the feed rate of material increase gradually near discharging opening 3 places.Also have, in the D of deaeration Mixed Zone, the stirring vane 10 of present embodiment is not established the assembling gradient, and the feed rate of material does not almost have.Still have, except the gradient of adjusting stirring

vane

9,10 in this wise, the blade area of paddle board 9b, the 10b of stirring

vane

9,10 is being increased gradually the feed rate of material is increased gradually near discharging opening 3 places, also have, coaxial interlobate hypotelorism, the number of blade is increased, and the assembly building that makes stirring

vane

9,10 also can make feed rate increase apart from reducing gradually near discharging opening 3 places.Also have, the assembling gradient of the stirring

vane

9,10 among above-mentioned Mixed Zone A, B, the C, assembly building also can be adjusted to universally at the axis direction of gyroaxis apart from, blade area and little by little change, but are adjusted to changing separately good in each Mixed Zone.

Also have, on the left and right sides medial surface in the discharging zone of said vesse 1, fixing the frame unit 16 of pair of right and left, make said fixing baffle plate 15 and the place ahead (right side among Fig. 1) keep certain interval, between these fixed dams 15 and frame unit 16, can free intercalation up and down the adjustment plate 17 of rectangle, have the gyroaxis that allows that extends up and down on the plate 17 and pass the slotted hole of usefulness, on this adjustment plate 17, fixing a pair of lever 18, their axis is towards above-below direction, be upward through container 1 above.And, this lever 18 can move up and down it by manual or mechanical device, the upper-lower position of adjusting plate 17 can be adjusted, so the bottom surface of container 1 and the interval adjusted between the plate 17 can adjust, this adjustments plate 17 and lever 18 have constituted the adjustment means of the hold-up of adjustment liquid.Also have, on discharging opening 3, connecting the bleeder valve (not shown), also can adjust the hold-up of liquid R by adjustment to the aperture of this bleeder valve.The 22nd, strengthen the baffle plate that prevents that the adverse current from deaeration Mixed Zone D from using.

Still have, the central portion on the D of the deaeration Mixed Zone of said vesse 1 is connecting an end of suction pipe 19, and the other end of suction pipe is connected to the vacuum generating device (not shown), by this suction pipe 19 bubble is removed.

Still have, above-mentioned stirring vane 9 can have and above-mentioned stirring vane 10 same essential structures as described above, also can have the paddle board ora terminalis is amplified, and solid material is colluded stirring is constructed more completely.Also have, also can be divided into each baffle plate more than 2, for example be divided into the upper section and the below part of gyroaxis, position separately can be adjusted independently.Also have, 20 is sealing devices as the sealing usefulness between each gyroaxis and the container 1 among the figure, the 21st, and as the sealing device of the sealing usefulness between above-mentioned the 1st gyroaxis and the 2nd gyroaxis.Still have, the revolution range that make with stirring vane the bottom of container 1 is consistent, so central portion is protruding upward, non-stirring region is not just behaved like this and done.

Therefore, in above-mentioned mixing stirring device, helical blade sheet 8a, the 8b that the solid material M that packs into to container 1 from charging door 2 is being adorned by rotating the 2nd gyroaxis 6a of low speed, 6b in the A of high viscosity Mixed Zone forwards extrudes forcibly, the stirring vane 9 of the oar shape that is being assembled on the same gyroaxis ... mix.Then, below the 1st, the 2nd, the 3rd baffle plate 13a, 13b, 13c, pass through in turn, high viscosity Mixed Zone A → medium viscosity Mixed Zone B → low viscosity Mixed Zone C → deaeration Mixed Zone D → transfer in turn, discharge by discharging opening 3, in this process because stirring vane 10 ... mix further and become the liquid R with certain viscosity of liquidation and discharge.

The object of solid state and aqueous object are difficult to make mixing power to act directly on the solids when mixing with hybrid state, and in above-mentioned mixing stirring device, state variation corresponding to material comes mixing the zone difference, therefore the object of different phases is mixed mutually, so mixing power acts on the material equably, stirring efficiency has just improved.Also have, in said apparatus, the aperture of bleeder valve can be regulated, adjusting the upper-lower position of plate 17 can adjust by lever 18, thereby has adjusted the hold-up of fluid R, and, stirring vane 9 ..., 10 ... the assembling gradient be to be adjusted in the B of medium viscosity Mixed Zone than in above-mentioned high viscosity Mixed Zone A to little, and than being little in above-mentioned medium viscosity Mixed Zone B, thus, the feed rate of material is big more the closer to discharging opening 3 places in the C of low viscosity Mixed Zone.Therefore, mixing when carrying out, having hold-up to a certain degree to increase in the Mixed Zone in the low the place ahead of viscosity, liquid level increases, and generally, the mixing torque in each Mixed Zone is roughly certain, and stirring efficiency just increases in turn.Also have, because feed rate increases as mentioned above gradually, liquid can adverse current when carrying out liquidation, utilizes baffle plate to strengthen the zoning effect, and stirring efficiency is improved.

Still have, in above-mentioned mixing stirring device, D removes bubble by suction pipe 19 in the deaeration Mixed Zone, and at this Mixed Zone D, stirring vane 10 ... to turn round to the outward turning direction at a high speed, liquid level stretches, and therefore inner bubble stretches on the surface and disappears, and carries out deaeration effectively.Also have, because each baffle plate all is made into its upper-lower position and can freely adjusts, hold-up in each Mixed Zone (liquid level) is most suitably being adjusted event can easily adjust mixability, even variations such as the kind of material, proterties also can obtain only operating condition.

, in the above-described embodiments, the deaeration engineering is not necessarily essential according to the material of liquidation.In this occasion, the 1st gyroaxis and the 2nd gyroaxis can all be inward turnings also.Also have, when the liquidation ratio is easier to, the occasion that the high viscosity Mixed Zone is relatively shorter, these two axles also can be with same speed of gyration.Also have, in the above-described embodiments, engineering be divided into high viscosity is mixed engineering and remaining mixes such two engineerings of engineering, but corresponding these two engineerings also handle assembly make two sections.Still have, the shape of the paddle board of stirring vane is rectangle not necessarily, also can be crooked, and also having incline direction also can be both direction or a plurality of direction.More have, oral-lateral is lower also is fine than charging for the discharging oral-lateral that container all is arranged to the place ahead, does the stable discharge that can further guarantee liquid like this and prevents adverse current.

As described above, in mixing stirring device of the present invention, owing to being come by zoning, the solid material in charging door input container mixes, little by little becoming the liquid state discharges from discharging opening, not that the object of different phases is mixed mutually, oversimplify serialization so mix engineering, mixing power acts on the material equably simultaneously, has improved stirring efficiency.Therefore, installation cost and expenditure on power can reduce significantly compared with prior art.In addition, owing to utilize stirring vane that the feed rate of material is increased at the discharging oral-lateral, liquid can adverse current in the liquidation process of material, and the difference that mixes the zone accomplishes easily, secondly, owing to adopted the adjustment means and the baffle plate of hold-up, the liquid level that has increased liquid keeps effect, carries out mixing, because the liquid level in the low Mixed Zone of viscosity uprises, make the stirring moment of torsion in each Mixed Zone first and last roughly stable, its effect is that stirring efficiency is improved.

Claims

1, a kind of mixing stirring device, have charging door and discharging opening, between charging door and discharging opening, be horizontally disposed with container,, vertically be provided with a pair of rotating shaft that is parallel to each other at least along it at this internal tank with certain-length, and, a plurality of stirring vanes are housed on above-mentioned rotating shaft, solid material are mixed, gradually fluidify, it is characterized in that

The angle of inclination of above-mentioned stirring vane, have at least one to be set in assembly building distance or the area if the angle of inclination, the assembly building distance, then littler near discharging opening, if area, then bigger near discharging opening, so that make the travelling speed of above-mentioned discharging opening one side be higher than the travelling speed of above-mentioned charging door one side, above-mentioned material is transported to discharging opening from charging door on one side, mix on one side, and the inside of said vesse is provided with the carriage direction of a plurality of baffle plates along above-mentioned material, the inside of this container is divided into a plurality of zones, formed the zone that mixes corresponding to the above-mentioned material variable condition, and adjustment plate and/or dump valve are housed in the zone of exit side, to be adjusted at the hold-up that mixes the above-mentioned material of fluidify state in the zone.

2, as said mixing stirring device in the claim 1, it is characterized by above-mentioned gyroaxis has the rotating low speed revolution of the inward turning low speed axial region of the charging oral-lateral that is positioned at said vesse, high speed rotary axial region with the outward turning high speed rotary of the discharging oral-lateral that is positioned at said vesse, above-mentioned stirring vane has the helical blade that is arranged on above-mentioned low speed revolution axial region, with position beyond this helical blade that is arranged on this low speed revolution axial region vertically with certain assembly building apart from a plurality of oar shape stirring vanes of installing and be arranged on above-mentioned high speed rotary axial region along the longitudinal with certain assembly building apart from a plurality of oar shape stirring vanes of installing.

3, as said mixing stirring device in the claim 1, it is characterized by above-mentioned gyroaxis has the rotating low speed revolution of the inward turning low speed axial region of the charging oral-lateral that is positioned at said vesse, high speed rotary axial region with the inward turning high speed rotary of the discharging oral-lateral that is positioned at said vesse, above-mentioned stirring vane has the helical blade that is arranged on above-mentioned low speed revolution axial region, with position beyond this helical blade that is arranged on this low speed revolution axial region vertically with certain assembly building apart from a plurality of oar shape stirring vanes of installing and be arranged on above-mentioned high speed rotary axial region along the longitudinal with certain assembly building apart from a plurality of oar shape stirring vanes of installing.