GB2075352A - Equipment for the delivery of slurry and refinement during delivery - Google Patents
Equipment for the delivery of slurry and refinement during delivery Download PDFInfo
- Publication number
- GB2075352A GB2075352A GB8015415A GB8015415A GB2075352A GB 2075352 A GB2075352 A GB 2075352A GB 8015415 A GB8015415 A GB 8015415A GB 8015415 A GB8015415 A GB 8015415A GB 2075352 A GB2075352 A GB 2075352A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rods
- rotary part
- equipment
- stationary
- stationary part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/22—Disintegrating by mills having rotary beater elements ; Hammer mills with intermeshing pins ; Pin Disk Mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
- B01F27/271—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/0084—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage
- B02C18/0092—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage for waste water or for garbage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F2025/91—Direction of flow or arrangement of feed and discharge openings
- B01F2025/912—Radial flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
- B01F27/271—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator
- B01F27/2711—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator provided with intermeshing elements
Abstract
A House (1) provided with an axial inlet opening (4) and a tangential discharge opening (5) contains a disc-shaped stationary part (3) with a concentric opening (3') adjoining the inlet opening (4) and a disc-shaped rotary part (2) arranged opposite the stationary part (3). Rods (9, 7) are concentrically arranged, alternately on the stationary part (3) and rotary part (2) in such a way that the rods of each part point toward the other part. The rotary part (2) has a jacket (6) surrounding the outermost rods (9) of the stationary part (3), said jacket being perforated with holes (6) in radial direction. The rod-lines of the stationary and rotary part, as well as the jacket of the rotary part and their holes bring about an intensive turbulence, resulting partly in powerful impact and friction between the solid particles of the slurry and partly in cavitation, which initiate the explosive disintegration of the particles. At the same time the refined slurry arriving at the discharge opening, has a high exit velocity, whereby the lift of the equipment is unusually high. <IMAGE>
Description
SPECIFICATION
Equipment for the delivery of slurries and for refinement during delivery
The invention relates to an equipmentforthe delivery of slurries and their refinement during delivery.
The demand for the delivery of various slurries (e.g. from the place of production to the location of utilization), and for their refinement (the possibly most intensive dispergation of the solid particles) is very frequent in the various fields of the industry. By the term "slurry" generally liquid with solid substance content is understood. Such slurries are used among others in the construction-, chemical-, food-, paint-, etc., industry. There are such specially constructed pumps which are suitable for the delivery of certain types of slurry. These pumps are usually suitablefortheir purpose, i.e. are capable of the delivery of the slurry prepared in advance, to the place of destination.However, a separate equipment is necessary for the preparation of the slurry of suitable fineness, because the slurry pump alone is either unable to dispergate (refine) the delivered slurry, or only to an insignificant extent.
At the same time various devices exist for the refinement of slurries (see for instance the Hungarian patent specification No. 162 529). These devices use impellers with toothed rims next to each other, and disc which cut (shear) the solid particles of the slurry flowing between them upon impact with each other and with the teeth.
The known slurry-refining devices are not suitable to carry the slurry to be refined, because the slurry flowing between the stationary and rotary parts has no sufficient exit speed at the location of the outlet
The invention is aimed at elimination of above deficiencies of the known devices.
Purpose of the invention is to realize an equipment suitable for the delivery of slurries and refinement of the delivered slurry at the same time, thus making the extra slurry refining devices unnecessary in the specific technological processes, i.e. it permits significant saving in investment, operation and energy.
The equipment according to the invention for the delivery of slurries and refinement during delivery has a house provided with axial inlet and tangential outlet, opening, furthermore the equipment has a disc-shaped stationary part provided with concentric opening adjoining the inlet opening arranged in the house, and another disc-shaped rotary part arranged opposite the stationary part, and rods are concentrically arranged on the stationary and rotary part according to the invention in such a way, that the rods of the stationary part point toward the rotary part, while the rods of the rotary part point toward the stationary part, and the rotary part has a jacket surrounding the rods arranged along the largest diameter circle of the stationary part, said jacket being perforated with holes in radial direction.
The number of rods arranged along one circle is increasing outward in radial direction.
The rods are preferably of circular or polygonal cross section. The gap between two adjacent rods of the stationary part and rods of the rotary part in radial direction is suitably 1/3-1/8-th of the rod diameter.
It is advisable to cover the rods with elastic material.
In the equipment according to the invention the rod lines of the stationary and rotary part, as well as the jacket of the rotary part and its radial holes bring about an extremely intensive turbulence in the delivered slurry, resulting partly in a powerful impact and friction between the solid particles of the slurry and partly in cavitation which initiate the explosive disintegration of the particles. At the same time the refined slurry arriving at the discharge opening has a high exit velocity, therefore the equipment has a high lift unusual at the slurry refining machines.
The invention is described by way of an example of the embodiment illustrated in the enclosed drawing, as follows:
Figure 1: Longitudinal section of the equipment according to the example;
Figure 2: Plan view of the hole in the rotary part of the equipment according to Figure 1.
The equipment presented by the example has a house 1 of a shape usual at the single-stage turbine pump, provided with an axial inlet opening 4 and tangential discharge opening 5, made of or covered with wear-resistant material.
A disc-shaped stationary part 3 is arranged in the house 1 screwed onto the thread of the inner and of the inlet opening 4, said stationary part 3 having a concentric opening 3' adjoining the inlet opening 4.
A shaft 8 with suitable packing is introduced on the side of house 1 opposite the inlet opening 4, arranged rotatably in bearing (not shown), and driven for instance by an electric motor. The shaft 8 carries a disc-shaped rotary part 2 which is parallel with the stationary part 3 and provided with a baffle element 2' of usual shape in the centre facing the stationary part 3. Rods 7, 9 are concentrically arranged alternately on the rotary part 2 and the stationary part 3.The rods 7 of the rotary part 2 point toward the stationary part 3, while the rods 9 of the stationary part point toward the rotary part 2. (For the sake of simplicity Figure 1 shows only the rods 7,9 in the plane of the section.) Rods 7,9 are uniformly distributed along the concentric circles, and their number is increasing with the increase of the circles' radii. Rods 7,9 are of circular cross section in the given case, but they may be of polygonal or other cross sections as well. Rods 7 can be produced in one piece with the rotary part 2, and rods 9 with stationary part 3 (e.g. by casting), but they may be separate elements fixed to the respective parts.
The rods 7,9 similarly to the house 1, rotary part 2 and stationary part 3, are of or at least covered with wear-resistant material of high strength.
Distance "a" between the adjacent rods 7, 9 in radial direction is 1/3-1/8-th of the rod diameter"d".
The rotary part 2 has a jacket 6 surrounding the rods 9 arranged along the circle of the largest diameter "D" of the stationary part 3, said jacket being provided with radial holes 6' (Figure 2). Holes 6' are uniformly distributed along the circumference, and their length "L" in axial direction is the same as the length "L" of the rods 9.
The described equipment functions as follows:
The non-refined slurry of maximum 60 weight % solid content admitted through the inlet opening 4 (maximum grain size corresponds to the minimum gap between the rods) is carried by the baffle element 2' of the high-speed rotary part 2 into the space between the rods 7 and 9, where, due to the very intensive turbulence the solid parts are exposed to extremely intensive disintegration partly as a result of impacts due to the very intensive turbulence, and partly by cavitation. The jacket 6 of the rotary part 2 provided with holes 6' and in co-action with rods 7,9 force the refined slurry toward the discharge opening 5, through which it is carried in the pipeline (not shown) to the place of utilization.
Main technical data of an already realized experimental equipment are the following:
Diameter of rotary part (2): 234 mm
Width of rotary part jacket (6): 76 mm
Number of holes (6') on jacket: 37
Diameter of rods (7,9)midi: 12 mm
Length of rods (7,9) 9)/L,/: 48 mm
Number of rotary part rods (7) along 0 108 mm inner pitch circle: 5 0 164 mm outer pitch circle: 19
Number of stationary part rods (9) along 0 136 mm inner pitch circle: 14 O 192 mm outer pitch circle (D): 31
Diameter of inlet opening (4): 76 mm
Diameter of discharge opening (5): 50 mm
Test data of the equipment measured with water:
Power output of driving motor: N =22kW
R.p.m.: n = 1600 min-'
Lift: H=12m
Efficiency: IL =9% Data of a specific plant experiment are the following:
Clay of 5 mm maximum grain size derived from brick works was mixed with water at 55 weight % solid content in a mixer. The obtained slurry was poured into an equipment of above characteristics.
The refined slurry emerging from the equipment was of high dispersion and honey-like density.
Delivery of the slurry by the equipment was excellent and the delivered quantity: 650-950 Ilmin.
Claims (8)
1. Equipment for the delivery and refinement of slurry comprising a housing provided with an axial inlet opening and a tangential discharge opening, a disc-shaped stationary part arranged in the housing and provided with an opening communicating with the inlet opening, a disc-shaped rotary part opposite the stationary part rods arranged concentrically and atlernately on the stationary part and the rotary part in such a way that the rods of each part point toward the other part, and the rotary part has a jacket surrounding the rods (9) arranged along the outermost rods of the stationary part, said jacket being perforated with holes in radial direction.
2. Equipment as claimed in claim 1, wherein the number of the rods arranged along the same circle increases outward by radial direction.
3. Equipment as claimed in claim 1 or 2, wherein the rods are of circular cross section.
4. Equipment as claimed in claim 1 or 2, wherein the rods are of polygonal cross section.
5. Equipment as claimed in any one of claims 14, wherein a gap between two adjacent stationary part rods and rotary part rods in the radial direction is being 1/3-1/8-th of the rod diameter.
6. Equipment as claimed in any one of claims 1-5, wherein at leastthe rods are covered with elastic material.
7. Equipment as claimed in claim 1, subsfantially as hereinbefore described with reference to the accompanying drawing.
8. Equipment for the delivery and refinement of slurry, comprising a housing, a disc-shaped stationary part and a disc-shaped rotary part disposed in said housing, an inlet opening in the housing arranged on the axis of rotation of the rotary part, an outlet opening in the housing disposed tangentially of the axis of rotation of the rotary part, said stationary part being spaced apart axially of the rotary part and being substantially parallel thereto, an opening in the stationary part in communication with the inlet opening, a plurality of sets of rods provided on the respective parts, the rods of each set being arranged on a respective pitch circle centred on the axis of rotation of the rotary part, and the rods of each part pointing towards the other part, and a jacket on the rotary part surrounding the outermost set of rods on the stationary part, said jacket having holes therethrough which are disposed radially of the axis of rotation of the rotary part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8015415A GB2075352B (en) | 1980-05-09 | 1980-05-09 | Equipment for the delivery of slurry and refinement during delivery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8015415A GB2075352B (en) | 1980-05-09 | 1980-05-09 | Equipment for the delivery of slurry and refinement during delivery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2075352A true GB2075352A (en) | 1981-11-18 |
| GB2075352B GB2075352B (en) | 1984-06-06 |
Family
ID=10513313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8015415A Expired GB2075352B (en) | 1980-05-09 | 1980-05-09 | Equipment for the delivery of slurry and refinement during delivery |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2075352B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0436462A1 (en) * | 1990-01-05 | 1991-07-10 | Kinematica Ag | System for continuous cinematic high-frequency treatment of a material and process for obtaining this system |
| EA012471B1 (en) * | 2007-03-28 | 2009-10-30 | Владимир Николаевич Козаков | Rotary cavitation device |
| EP2228134A4 (en) * | 2007-10-10 | 2017-03-22 | Industrias Centli, S.A., De C.V. | Method and apparatus for separating, purifying and promoting interaction and enhancing combustion |
-
1980
- 1980-05-09 GB GB8015415A patent/GB2075352B/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0436462A1 (en) * | 1990-01-05 | 1991-07-10 | Kinematica Ag | System for continuous cinematic high-frequency treatment of a material and process for obtaining this system |
| US5203515A (en) * | 1990-01-05 | 1993-04-20 | Kinematica Ag | Apparatus for the continuous kinematic high frequency treatment of a substance and method for the manufacture of said device |
| EA012471B1 (en) * | 2007-03-28 | 2009-10-30 | Владимир Николаевич Козаков | Rotary cavitation device |
| EP2228134A4 (en) * | 2007-10-10 | 2017-03-22 | Industrias Centli, S.A., De C.V. | Method and apparatus for separating, purifying and promoting interaction and enhancing combustion |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2075352B (en) | 1984-06-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19920509 |