GB2111038A - Method for preparing ceramic material in particular mixes for tile manufacturing, and apparatus implementing said method - Google Patents
Method for preparing ceramic material in particular mixes for tile manufacturing, and apparatus implementing said method Download PDFInfo
- Publication number
- GB2111038A GB2111038A GB08234531A GB8234531A GB2111038A GB 2111038 A GB2111038 A GB 2111038A GB 08234531 A GB08234531 A GB 08234531A GB 8234531 A GB8234531 A GB 8234531A GB 2111038 A GB2111038 A GB 2111038A
- Authority
- GB
- United Kingdom
- Prior art keywords
- slurry
- mill
- water
- ceramic material
- grain size
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims description 18
- 229910010293 ceramic material Inorganic materials 0.000 title claims description 14
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000002002 slurry Substances 0.000 claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000007787 solid Substances 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 25
- 238000000227 grinding Methods 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 3
- 238000003801 milling Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 239000011343 solid material Substances 0.000 abstract description 3
- 239000012467 final product Substances 0.000 description 6
- 239000000843 powder Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D11/00—Control of flow ratio
- G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
- G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
- G05D11/135—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by sensing at least one property of the mixture
- G05D11/137—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by sensing at least one property of the mixture by sensing the density of the mixture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/02—Controlling the operation of the mixing
- B28C7/022—Controlling the operation of the mixing by measuring the consistency or composition of the mixture, e.g. with supply of a missing component
- B28C7/024—Controlling the operation of the mixing by measuring the consistency or composition of the mixture, e.g. with supply of a missing component by measuring properties of the mixture, e.g. moisture, electrical resistivity, density
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/30—Conveying materials in bulk through pipes or tubes by liquid pressure
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
A mixture of water and solid material to a constant ratio is introduced into a continuous cycle mill (6), until a slurry is obtained which is then filtered to separate the solid portion with grain size in excess of a preset value. The solid portion thus separated, is cycled back into the mill (6), while a measuring device (14) checks the slurry density and controls the water supply (15) to the mill such as to maintain the water/solid material ratio. The slurry is then transported to a homogenizing system <IMAGE>
Description
SPECIFICATION
Method for preparing ceramic material, in particular mixes for tile manufacturing, and apparatus implementing said method
This invention relates to a method for preparing ceramic material, in particular mixes for tile manufacturing, and to an apparatus implementing said method.
The preparation of ceramic mixes has involved, heretofore, the introduction of base material (e.g.
coarsely pre-ground clay), with water added thereto, into a mill, wherein it was ground to a desired residue percent, to be then discharged in a fluid or semifluid state into storage tanks.
The resulting product, in slurry form, was next filtered and transported to stirring tanks, whence it was extracted for subsequent processing until part or all of the water present was removed and a final product obtained, which may be either in powder or paste forms.
In particular, where a powder product is aimed at, the slurry is introduced into apparatus, known as atomizer or spray-driers, wherein it is atomized and contacted with a hot air stream adapted to provide separation of the fluid portion from the solid.
Conventional preparation methods show deficiencies which affect the quality of the final product and involve high energy consumption levels.
From the quality standpoint, it should be noted that the grinding process is continued until a preset amount of residue is obtained, which is periodically checked from slurry samples. Consequently, before the minimum residue is achieved, also subjected to protracted grinding are those particles which already fall within the acceptance range of grain size. This results in proportionally longer grinding time requirements, or wider grain size ranges, while the higher grain size residue cannot be altogether eliminated. The presence of this residue is detrimental because it affects adversely the following processing steps. In particular, when said residue includes, for example, certain materials deriving from the use of scraps, such as copper granules, there arises during the firing step a not negligible formation of undesired spots and discoloration.
From the energy standpoint, it is to be noted that such prior methods fail to provide optimum condi tionsforthe mill operation and for the following steps of separation of the fluid portion from the solid portion. In fact, in viewofthefactthatsuch processing steps involve the delivery of heat, it is preferred that the water supply to the mill be reduced and the mill output rate slowed down from maximum, thus accepting a compromise situation.
In such conditions, material sorting is less effective.
It is a primary object of this invention to provide a novel method whereby the aforementioned disadvantages of prior methods can be substantially attenuated.
According to one aspect of the invention that object is achieved by a method for preparing ceramic material, in particular mixes for tile manufacturing, characterized in that it comprises the steps of grinding, in a continuous cycle mill, a mixture of water and a solid ceramic material of coarse grain size, until a slurry is obtained having grain size and solid portion to liquid portion ratio characteristics approaching those desired, redirecting said slurry through a sorter to carry out a separation from the slurry of material with grain size exceeding a preset limit value, returning the separated material into the mill while transporting the slurry to a homogenizing and storage system, measuring the ratio in said slurry, and controlling the water supply to the mill in accordance with the measured value of said ratio.
According to another aspect of this invention, an apparatus is provided for implementing said method, which is characterized in that it comprises a continuous cycle mill for grinding a mixture of water and solid ceramic material until a slurry is achieved having density and grain size characteristics approaching those desired, at least one slurry tank for receiving the slurry from said mill, a pump member for pumping said slurry from said slurry tank into a sorter operative to separate from the slurry, material with grain size exceeding a preset limit value, means for conveying said separated material to said mill and the slurry to a homogenizing and storage system and to a slurry solid portion.
to liquid portion ratio measuring device adapted to control the water supply to said mill such as to adjust the water to ceramic material ratio.
Further features will be more clearly understood from the following description, with reference to the accompanying drawing, where:
Figure 1 is a schematical view of an apparatus according to the invention;
Figures2 and 3 illustrate variations of the apparatus of Figure 1; and
Figure 4 illustrates a variation ofthe grinding mill.
Making reference to Figure 1,this apparatus comprises two hoppers 1,2 adapted to contain coarse grain size material, such as clay.
From the hoppers the material is picked up, e.g. by means of respective auger extractors 3 and 4, and transported onto a conveyor belt 5.
The conveyor 5 transports the material to a continuous mill 6 of conventional design, e.g. of the ball gravity type wherein grinding is effected by impacting against steel balls contained within a tabular case set to rotate about a horizontal axis by a motor drive.
Into the mill 6, additionally to said material, water is also introduced from a water supply unit 7. The material and water are in a constant mutual ratio. For this purpose, continuous weighing is carried out on the conveyor 5, in order to provide a constant amount of material. Grinding in the mill 6 results in the formation of a slurry having grain size and density characteristics which largely correspond to the desired values.
The slurry is progressively discharged into a tank 8 whence a pump 9 pumps it to a sorter 10, e.g. a filter, which separates the coarse portion of the slurry. The thuslytreated slurry is transported, through a conduit 11, to a storage and homogenization system 12.
The separated portion is instead returned into the mill 6through a conduit 13.
Along the slurry return line, which extends from the tank 8 to the filter 10, there is arranged a device 14 effective to measure the ratio of solid portion to liquid portion in the slurry. The device 14, which may comprise a densimeter, controls an additional water supply 15 to the mill.
The apparatus described hereinabove operates as follows.
The solid material fed on the conveyor 5 and the water from the supply 7 are introduced into the mill 6 in a mutual ratio which corresponds to the mill maximum output rate and independently of any considerations brought into play by the subsequent homogenizing steps in the system 12. Upon leaving the mill, the slurry will then have a density which is a direct indication of the momentaneous performance of the mill. Returning of the slurry through the filter 10 results in the immediate recovery of slurry having the required grain size characteristics. The coarser and substantially dry particles which, being separated by the filter 10, are returned to the mill, cause a change in the overall component of the material relatively to the water, so that the outflowing slurry will have a higher density than the previous one.
The device 14, upon sensing that density difference, controls the supply 15, which will deliver additional water until the desired ratio is restored in the outflowing slurry.
The constant character of said ratio enables the mill 6 to operate at all times in a condition of utmost efficiency as regards production output and the properties of the slurry. The selection effected in the filter 10 only produces recirculation through the mill of that material which deviates from the required grain size. Thus, it becomes possible to obtain a slurry wherein the solid portion, as drawn out of the mill upon reaching the desired characteristics, is not subjected to further grinding. This, in turn, yields a final product the grain size whereof varies within a narrower range, as brought about, on one side, by preventing material which already falls within said grain size range from undergoing prolonged milling, and on the other side, by the absence of a residue. In this manner, fabrication of articles with a more homogeneous structure is favored.
The storage and homogenizing system 12 may be of any suitable type, known per se, for the final product to be obtained. Where a final product in powder form is aimed at, the system would comprise a device 12a, including for example one or
more suction filters or centrifugal separators, capable of significantly reducing the water percent in the slurry. From the device 1 2a, the slurry is then passed to a conventional atomizer, whereat the removal of water is almost completed, until a
powder with the desired properties is obtained.
It is a characterizing aspect of this invention that, to reduce the water percent, filters of the mechanical action type are used which require no significant energy (heat) input for their operation.
The invention described hereinabove is susceptibleto many modifications and variations. The embodiment of the apparatus, shown in Figure 2,
provides for the separation from the base material of that component which has the required grain size characteristics. To this aim the material, instead of being fed directly into the mill 6, would be preliminarly loosened in a loosener 16 or another continuous ball gravity mill, with the addition of water from the supply 7.
A sorting filter 17 (or a hydrocyclone) will provide for the separation from the resulting mix of a slurry having already the grain size features aimed at, which is delivered through a conduit 18 directly to the homogenizing and storage system 12. The remaining solid portion is diverted into the mill 6.
The apparatus of Figure 2 further narrows the grain size range of the final product.
Figure 3 shows schematically a further embodiment which, in comparison with the former, utilizes a single filter 19, whereto are directed both the slurry from the tank 8 and that from the loosener 16, and which represents a simplification construction-wise, even though the filter should have, of course, a higher capacity.
To enable the level of the slurry in the mill 6 to be varied, two boxes 20, 21 (Figure 4) are provided in superimposed relationship with the mill inlet and outlet, with the interposition of sealing gaskets.
The invention provides for the utilization of an automatic level control at optimum operating conditions of the mill. To that aim, a special control is provided with controls, in accordance with the level of the slurry in the mill, the feed rates of the material to be ground and of water. Such a control may comprise, as an example, variable speed motors for driving the extractors 3, 4.
According to another embodiment of the invention, the two water supply units 7, 15 may be combined in one unit under control by the device 14.
Claims (12)
1. A method for preparing ceramic material, in particular mixes for tile manufacturing, characterized in that it comprises the steps of grinding, in a continuous cycle mill, a mixture of water and a solid ceramic material of coarse grain size, until a slurry is obtained having grain size and solid portion to liquid portion ratio characteristics approaching those desired, redirecting said slurry through a sorterto carry out a separation from the slurry of material with grain size exceeding a preset limit value, returning the separated material into the mill while transport ingtheslurryto a homogenizing and storage system, measuring the ratio in said slurry, and controlling the water supply to the mill in accordance with the measured value of said ratio.
2. An apparatus implementing the method of
Claim 1, characterized in that it comprises a continuous cycle mill for grinding a mixture of water and solid ceramic material until a slurry is achieved having density and grain size characteristics approaching those desired, at least one slurry tank for receiving the slurry from said mill, a pump member for pumping said slurry from said slurry tank into a sorter operative to separate from the slurry, material with grain size exceeding a preset limit value, means for conveying said separated material to said mill and the slurry to a homogeniz ing and storage system and to a slurry solid portion to liquid portion ratio measuring device adapted to control the water supply to said mill such as to adjust the water to ceramic material ratio.
3. A method according to Claim 1, characterized in that it also comprises the steps of preparing a ceramic material and water mix, passing said mix through a sorterfilterto prepare a slurry, delivering said slurry directly to said homogenizing system and milling the remaining portion of said mix.
4. A method according to Claim 2, characterized in that it comprises the further step of delivering to said filter also the slurry from the milling step.
5. An apparatus according to Claim 2, characterized in that it comprises a loosenerforforming a ceramic material and water mix, wherewith is associated a sorter filter connected to the homogenizing system and mill for conveying the slurry and separated material, respectively, thereinto.
6. An apparatus according to Claim 5, characterized in that instead of said loosener, a continuous ball gravity mill is provided.
7. An apparatus according to either Claim 2 or 6, characterized in that said mill comprises two boxes superimposed in sealed relationship on the inlet and outlet with the interposition of gaskets.
8. An apparatus according to any of Claims 2,5 and 7, characterized in that the homogenizing and storage system comprises a mechanical action device for reducing the water percent in the slurry.
9. An apparatus according to Claim 8, characterized in that said device comprises one or more suction filters or centrifugal separators.
10. An apparatus according to any of Claims 2, 5-9, characterized in that it comprises automatic control means for controlling the slurry level in said mill.
11. An apparatus according to Claim 10, characterized in that said control means control the inflow of material to be milled and water,
12. A method for preparing ceramic material, in particular mixes for tile manufacturing, and an apparatus implementing said method, all this as herein described, illustrated, and claimed, for the objects specified.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT03599/81A IT1168399B (en) | 1981-12-07 | 1981-12-07 | PROCEDURE FOR THE PREPARATION OF CERAMIC MATERIAL IN PARTICULAR OF MIXTURES FOR THE MANUFACTURE OF TILES AND EQUIPMENT FOR THE IMPLEMENTATION OF THIS PROCEDURE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2111038A true GB2111038A (en) | 1983-06-29 |
Family
ID=11110419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08234531A Withdrawn GB2111038A (en) | 1981-12-07 | 1982-12-03 | Method for preparing ceramic material in particular mixes for tile manufacturing, and apparatus implementing said method |
Country Status (5)
| Country | Link |
|---|---|
| DE (1) | DE3244426A1 (en) |
| ES (1) | ES8404226A1 (en) |
| FR (1) | FR2517590A1 (en) |
| GB (1) | GB2111038A (en) |
| IT (1) | IT1168399B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2665844A1 (en) * | 1990-08-20 | 1992-02-21 | Cogema | TREATMENT OF AGGLOMERATES OF SOLID PARTICLES SUSPENDED IN A LIQUID IN ORDER TO OBTAIN A CIRCULATING MIXTURE WITHOUT DEPOSITS. |
| EP0698412A3 (en) * | 1994-08-22 | 1996-04-17 | Nat Gypsum Co | Continuous starch slurry manufacture |
| US5733499A (en) * | 1994-11-09 | 1998-03-31 | Ngk Insulators, Ltd. | Method for producing ceramic substrate |
| ES2228187A1 (en) * | 2001-04-11 | 2005-04-01 | Joaquin Javier Aguilella Alvaro | Enamels and ceramics decanting system includes a computer supplementing two interconnected receptacles, with pumping |
| EP2465611A1 (en) * | 2010-12-15 | 2012-06-20 | Euroelettra Ingeniería, s.l. | Automatic system for setting the density and viscosity in products obtained by continuous grinding |
| WO2013120925A1 (en) * | 2012-02-15 | 2013-08-22 | Pr Ceramic Engineering Ges.M.B.H. | Process for producing an operating compound for coarse-ceramic products and drying storage installation therefor |
| WO2015057729A3 (en) * | 2013-10-15 | 2015-07-16 | Corning Incorporated | Systems and methods for skinning articles |
| CN108974948A (en) * | 2018-07-16 | 2018-12-11 | 湖北甘宁石化新材料股份有限公司 | A kind of Pneumatic conveyer that nitrogen circulation uses |
| US10611051B2 (en) | 2013-10-15 | 2020-04-07 | Corning Incorporated | Systems and methods for skinning articles |
| US10634025B2 (en) | 2011-11-29 | 2020-04-28 | Corning Incorporated | Apparatus and method for skinning articles |
| US10744675B2 (en) | 2014-03-18 | 2020-08-18 | Corning Incorporated | Skinning of ceramic honeycomb bodies |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL103261C (en) * | 1954-12-17 | |||
| US2833482A (en) * | 1957-03-26 | 1958-05-06 | Weston David | Automatic control for wet grinding mills |
| US3094289A (en) * | 1959-10-29 | 1963-06-18 | Bolidens Gruv Ab | Rock grinding system |
| US3379421A (en) * | 1966-12-14 | 1968-04-23 | Westinghouse Electric Corp | Control of material processing device |
-
1981
- 1981-12-07 IT IT03599/81A patent/IT1168399B/en active
-
1982
- 1982-12-01 DE DE19823244426 patent/DE3244426A1/en not_active Withdrawn
- 1982-12-03 GB GB08234531A patent/GB2111038A/en not_active Withdrawn
- 1982-12-07 FR FR8220469A patent/FR2517590A1/en not_active Withdrawn
- 1982-12-07 ES ES518311A patent/ES8404226A1/en not_active Expired
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2665844A1 (en) * | 1990-08-20 | 1992-02-21 | Cogema | TREATMENT OF AGGLOMERATES OF SOLID PARTICLES SUSPENDED IN A LIQUID IN ORDER TO OBTAIN A CIRCULATING MIXTURE WITHOUT DEPOSITS. |
| EP0472459A1 (en) * | 1990-08-20 | 1992-02-26 | Cogema Compagnie Generale Des Matieres Nucleaires | Process and apparatus for treating solid agglomerates, in suspension in a liquid, to ensure that a heterogeneous mixture can be conveyed in pipelines without deposits |
| EP0698412A3 (en) * | 1994-08-22 | 1996-04-17 | Nat Gypsum Co | Continuous starch slurry manufacture |
| US5573333A (en) * | 1994-08-22 | 1996-11-12 | National Gypsum Company | Demand responsive, continuous preparation of starch slurry for use in manufacturing gypsum products |
| US5733499A (en) * | 1994-11-09 | 1998-03-31 | Ngk Insulators, Ltd. | Method for producing ceramic substrate |
| EP0857702A1 (en) * | 1994-11-09 | 1998-08-12 | Ngk Insulators, Ltd. | Method for producing ceramic substrate |
| US5955392A (en) * | 1994-11-09 | 1999-09-21 | Ngk Insulators, Ltd. | Zirconia ceramic green sheet |
| ES2228187A1 (en) * | 2001-04-11 | 2005-04-01 | Joaquin Javier Aguilella Alvaro | Enamels and ceramics decanting system includes a computer supplementing two interconnected receptacles, with pumping |
| EP2465611A1 (en) * | 2010-12-15 | 2012-06-20 | Euroelettra Ingeniería, s.l. | Automatic system for setting the density and viscosity in products obtained by continuous grinding |
| US10634025B2 (en) | 2011-11-29 | 2020-04-28 | Corning Incorporated | Apparatus and method for skinning articles |
| WO2013120925A1 (en) * | 2012-02-15 | 2013-08-22 | Pr Ceramic Engineering Ges.M.B.H. | Process for producing an operating compound for coarse-ceramic products and drying storage installation therefor |
| WO2015057729A3 (en) * | 2013-10-15 | 2015-07-16 | Corning Incorporated | Systems and methods for skinning articles |
| US10611051B2 (en) | 2013-10-15 | 2020-04-07 | Corning Incorporated | Systems and methods for skinning articles |
| US10744675B2 (en) | 2014-03-18 | 2020-08-18 | Corning Incorporated | Skinning of ceramic honeycomb bodies |
| CN108974948A (en) * | 2018-07-16 | 2018-12-11 | 湖北甘宁石化新材料股份有限公司 | A kind of Pneumatic conveyer that nitrogen circulation uses |
| CN108974948B (en) * | 2018-07-16 | 2024-03-15 | 湖北甘宁石化新材料股份有限公司 | Pneumatic conveying device for recycling nitrogen |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2517590A1 (en) | 1983-06-10 |
| IT1168399B (en) | 1987-05-20 |
| ES518311A0 (en) | 1984-05-16 |
| IT8103599A0 (en) | 1981-12-07 |
| ES8404226A1 (en) | 1984-05-16 |
| DE3244426A1 (en) | 1983-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4582260A (en) | Method of and plant for grinding pulverulent or granular materials | |
| GB2111038A (en) | Method for preparing ceramic material in particular mixes for tile manufacturing, and apparatus implementing said method | |
| CN106582369A (en) | Feed blending system | |
| WO2021093256A1 (en) | Raw material vertical mill external circulation system and process | |
| US4061274A (en) | Material reducing apparatus and method of operating the same | |
| CN1122730A (en) | Method and apparatus for crushing material of different grain size | |
| US5110056A (en) | Method and apparatus for reducing brittle material for subsequent grinding | |
| US6019299A (en) | Cement clinker grinding apparatus using vertical roller mill and its method | |
| CN107520042A (en) | A kind of separation system and sorting process of spodumene raw ore dense media | |
| IE48985B1 (en) | Dry grinding a granular material | |
| US4889289A (en) | Method and apparatus for crushing material for grinding | |
| RU2338800C2 (en) | Method of preparing mixture for sintering | |
| CA1172225A (en) | Impact grinding method and apparatus | |
| US3397845A (en) | Grinding mill plant | |
| US2309989A (en) | Apparatus for cooking grain mash | |
| US5215262A (en) | Method and apparatus for comminuting bulk materials | |
| US3949940A (en) | Tube mill | |
| US4637556A (en) | High efficiency separator system | |
| CN106036964A (en) | Fully automatic batching machine for feeds | |
| CN105601137B (en) | Utilize the device and method of at least two power production binder materials | |
| US3587980A (en) | Method of controlling the rate of feed to an extraneously energized airswept mill | |
| US3894156A (en) | Method for mashing | |
| EP3417942A1 (en) | A grinding plant for the production of products for ceramics | |
| CN211838222U (en) | Ceramic pigment grinding system | |
| CN104959199B (en) | A kind of dielectric film filter of Horizontal stirring grinding machine is with adding device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |