EP2344613B1 - Lubricant for water-reduced belt lubrication - Google Patents
Lubricant for water-reduced belt lubrication Download PDFInfo
- Publication number
- EP2344613B1 EP2344613B1 EP09764712.7A EP09764712A EP2344613B1 EP 2344613 B1 EP2344613 B1 EP 2344613B1 EP 09764712 A EP09764712 A EP 09764712A EP 2344613 B1 EP2344613 B1 EP 2344613B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lubricant
- belt
- water
- lubrication
- bottles
- 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.)
- Active
Links
- 239000000314 lubricant Substances 0.000 title claims description 69
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 44
- 238000005461 lubrication Methods 0.000 title claims description 41
- -1 amine salts Chemical class 0.000 claims description 27
- 239000000839 emulsion Substances 0.000 claims description 24
- 229920002545 silicone oil Polymers 0.000 claims description 20
- 239000011521 glass Substances 0.000 claims description 16
- 150000001412 amines Chemical class 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 11
- 239000004094 surface-active agent Substances 0.000 claims description 11
- 239000004033 plastic Substances 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 9
- 239000008346 aqueous phase Substances 0.000 claims description 7
- 150000001450 anions Chemical class 0.000 claims description 6
- 235000013361 beverage Nutrition 0.000 claims description 4
- 239000011111 cardboard Substances 0.000 claims description 4
- 150000001768 cations Chemical class 0.000 claims description 4
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims description 4
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 4
- 239000003945 anionic surfactant Substances 0.000 claims description 3
- 239000002736 nonionic surfactant Substances 0.000 claims description 3
- 239000002280 amphoteric surfactant Substances 0.000 claims description 2
- 125000000129 anionic group Chemical group 0.000 claims description 2
- 125000002091 cationic group Chemical group 0.000 claims description 2
- 239000003093 cationic surfactant Substances 0.000 claims description 2
- 239000002537 cosmetic Substances 0.000 claims description 2
- 235000013305 food Nutrition 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 239000002671 adjuvant Substances 0.000 claims 1
- 229920001296 polysiloxane Polymers 0.000 description 11
- 239000003921 oil Substances 0.000 description 10
- 235000019198 oils Nutrition 0.000 description 10
- 238000002474 experimental method Methods 0.000 description 9
- 238000005260 corrosion Methods 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 8
- 239000012895 dilution Substances 0.000 description 8
- 238000010790 dilution Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- 238000005336 cracking Methods 0.000 description 6
- 230000001050 lubricating effect Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 150000002830 nitrogen compounds Chemical class 0.000 description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 229910017464 nitrogen compound Inorganic materials 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000546 pharmaceutical excipient Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 206010038743 Restlessness Diseases 0.000 description 2
- 235000021443 coca cola Nutrition 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 description 2
- 239000003995 emulsifying agent Substances 0.000 description 2
- 150000002191 fatty alcohols Chemical class 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 235000015112 vegetable and seed oil Nutrition 0.000 description 2
- 239000008158 vegetable oil Substances 0.000 description 2
- 239000004907 Macro-emulsion Substances 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000010775 animal oil Substances 0.000 description 1
- 239000012223 aqueous fraction Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000005356 container glass Substances 0.000 description 1
- 239000012611 container material Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- DEFVIWRASFVYLL-UHFFFAOYSA-N ethylene glycol bis(2-aminoethyl)tetraacetic acid Chemical compound OC(=O)CN(CC(O)=O)CCOCCOCCN(CC(O)=O)CC(O)=O DEFVIWRASFVYLL-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000008233 hard water Substances 0.000 description 1
- 239000003752 hydrotrope Substances 0.000 description 1
- NYMPGSQKHIOWIO-UHFFFAOYSA-N hydroxy(diphenyl)silicon Chemical class C=1C=CC=CC=1[Si](O)C1=CC=CC=C1 NYMPGSQKHIOWIO-UHFFFAOYSA-N 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 125000001421 myristyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000007764 o/w emulsion Substances 0.000 description 1
- 239000004058 oil shale Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920001521 polyalkylene glycol ether Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- QUCDWLYKDRVKMI-UHFFFAOYSA-M sodium;3,4-dimethylbenzenesulfonate Chemical compound [Na+].CC1=CC=C(S([O-])(=O)=O)C=C1C QUCDWLYKDRVKMI-UHFFFAOYSA-M 0.000 description 1
- 230000009044 synergistic interaction Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000007762 w/o emulsion Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M173/00—Lubricating compositions containing more than 10% water
- C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
- C10M173/025—Lubricating compositions containing more than 10% water not containing mineral or fatty oils for lubricating conveyor belts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/38—Conveyors or chain belts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/01—Emulsions, colloids, or micelles
- C10N2050/011—Oil-in-water
Definitions
- the invention relates to a chain lubricant or belt lubricant for water-reduced lubrication of conveyor belts for bottles, cans, other containers and boxes and the use of chain lubricant or tape lubricant for the water-reduced lubrication of such conveyor belts.
- Belt lubricants also referred to as chain lubricants, are used to transport glass bottles or cans, including beverage cans, other containers and boxes on conveyor belts. More recently, plastic bottles, here preferably polyethylene terephthalate, known as so-called PET bottles, have also been transported on the conveyor belts to a greater extent.
- the belt lubricants or chain lubricants should generally have emulsifying, cleansing and corrosion-inhibiting properties. In the field of the beverage industry, particularly high demands are placed on hygiene. In a bottling plant, the smooth bottle transport is of utmost importance. If faults occur here, this can cause the entire filling line to come to a standstill and thus high downtime costs.
- Belt lubrication should ensure smooth operation of the equipment while minimizing wear on the transport system (s) and bottles. At the same time, this must not increase the operating costs excessively, but should be kept low. It is currently common to use tape lubricants in a high dilution with water.
- the preparation of the belt lubricating solution takes place in the form of a volume-proportional metering of the belt lubricant into a water flow in a central metering unit. The solution is then passed to nozzles and sprayed from there as evenly as possible.
- the conveyor belts themselves can be made of steel or plastic. Basically, bottles made of glass or plastic, cans, boxes, barrels and cartons can be transported.
- a fundamental problem in the transport systems are deposits in the piping systems, nozzle sticks, nozzles and sieves.
- a disturbing foaming and streaks can be observed when using the belt lubricant in the high water dilution.
- a particular problem is the cost of the significant amounts of fresh water supply and sanitation, which inevitably arise due to the high dilution of these conventional belt lubricant in the wet belt lubrication.
- Dry-belt lubricants essentially do not require water, and therefore can be used without the problem of disruptive foaming and, moreover, irrespective of the hardness of the water.
- a lubricant composition to be used as a "dry" lubricant.
- This composition is characterized by having an oil selected from silicone oils, vegetable oils, and / or mineral oils dispersed in an aqueous phase. It can be used to lubricate the surface of a conveyor belt used to transport glass, plastic or cardboard containers.
- the conveyor belts may be formed of a plastic material, such as polyacetal or polyamide.
- the lubricant composition with certain types of containers should also be usable on steel and thus metal sheets. Although nothing more is said about the nature of the container, it is well known in the art that a dry belt lubrication is still not satisfactory for transporting glass bottles to metal webs.
- silicone oils used the use of polydimethylsiloxanes having viscosities in the range of 1,000 to 30,000 mPas (cSt) is said to be suitable. In the embodiments, a silicone oil having a viscosity of 2,000 cSt is used.
- the WO 2008/121720 deals in a very fundamental way with the problem of belt lubrication based on oil emulsions in aqueous phase.
- the oil emulsion is produced as a macroemulsion. It can be both an oil-in-water emulsion and a water-in-oil emulsion.
- all natural and / or synthetic oils are suitable for such an emulsion.
- natural oils these include, for example, animal oils, vegetable oils, mineral oils, petroleum oils are named extra, and oils derived from coal or oil shale.
- Synthetic oils may be those synthesized from raw materials which form blocks of larger and / or smaller molecules when reacted together, and then liquids in a temperature range of about 0-50 ° C form.
- a wide range of possible oils from a variety of organic chemistry fields covered by this definition will then be enumerated.
- the group of silicones in a wide viscosity range of 1 cSt - 10000cSt at 25 ° C is called and mentioned as such a possible lubricant dimethylsiloxanes. Can be added to this oil emulsion auxiliaries.
- EDTA is usually present as ethylenediaminetetraacetic acid disodium salt.
- the ethylenediaminetetraacetic acid anion has a molecular weight of about 292.
- a method for lubrication between containers and a conveyor belt has become known, which refers specifically to the promotion of thermoplastic containers in the form of PET containers or bottles and here to solve the problem of stress cracks in particular the use of a silicone oil having a viscosity of less than 50 cSt, most preferably less than 5 cSt.
- the US 2007/0066497 A1 also discloses a method for lubricating conveyor belts wherein a water miscible silicone compound is used as the silicone emulsion and the lubricant composition is applied to the conveyor belt or to the contact surface of the container to be transported with the conveyor belt.
- the contact angle between the belt lubricant and the container should be less than 60 °.
- Suitable silicone emulsions are those which have a viscosity of 430 cSt, but also those whose viscosity is in the range of 75,000-200,000 cSt.
- the present invention therefore has for its object to provide a lubricant composition which is also and in particular suitable for the transport of glass bottles on metal webs, and which avoids the enormous water consumption of Najibandschmierung without requiring a costly plant conversion.
- a chain lubricant or belt lubricant for a water-reduced lubrication of conveyor belts for Bottles, cans, other containers and boxes with a silicone oil having a viscosity of 70-200 cSt, at room temperature, with a multifunctional amine and with at least one excipient selected from the group consisting of anionic, nonionic, cationic and / or amphoteric surfactants as an aqueous phase emulsion wherein the amine is selected from amine salts in which the cation comprises primary, secondary, tertiary and / or quaternary amines, the anion as an organic radical is a surfactant, having a molecular weight greater than 350, preferably greater than 400, and the chain lubricant or belt lubricant is 5-95% by weight of aqueous phase, 0.01-30% by weight of silicone oil, 0.01-40% by weight of multifunctional amine and 0.01-25 Wt .-% surfact
- the percentage by weight of the surfactant may also coincide with that of the amine compound when the organic radical is a surfactant as an anion of the amine salt.
- a multifunctional nitrogen compound is understood as meaning such a nitrogen compound in which more than two functional groups are present in the entire molecule.
- This multifunctional nitrogen compound forms the cation of the tape lubricant of the invention or is contained therein.
- the multifunctional amine as a cation of this salt may in principle be a primary, secondary, tertiary and / or quaternary amine.
- amine salts based on fatty acids such as those having lauryl, myristyl, cetyl and stearyl radicals mentioned.
- fatty amines are mentioned, such as the alkylpropylenediamines, alkylpropylenetriamines and other alkylpropylenepolyamines.
- an anion of this amine salt which itself has no amine or an amine compound, is an organic radical having a molecular weight of greater than 350, preferably greater than 400, and particularly preferably greater than 500.
- Experimental results have shown that the high molecular weight anion the lubricity positive affected. It has also been found that the particular lubricating effect of the inventive chain lubricant or belt lubricant results from a synergistic interaction of the multifunctional nitrogen compound in the form of the amine salt with the silicone oil.
- anionic surfactants generally include alkylbenzenesulfonates (ABS) and fatty alcohol sulfates, as well as secondary alkanesulfonates (SAS). With regard to ABS and SAS their property is to be mentioned, even with hard water to be used easily. In addition, these surfactants are characterized by good wetting properties.
- at least one of the surfactant contained in the belt lubricant may be the organic radical as an anion of the amine salt itself.
- nonionic surfactants of which in particular the polyalkylene glycol ethers or fatty alcohol ethoxylates, the fatty alcohol propoxylates and the alkylphenol ethoxylates may be mentioned by way of example.
- auxiliaries optionally the addition of a weak acid in a small amount as a solubilizer, a fragrance and / or possibly also a dye and preservatives in question.
- the inventive chain lubricant or belt lubricant is characterized by a very good material compatibility, also with respect to the usual printing inks on cardboard packaging, low foaming and independent of the water hardness present in each case. It is characterized in particular by excellent transport properties of glass bottles on metal chains.
- a particular advantage of the chain lubricant or belt lubricant according to the invention consists in a considerable proportion of the conventional Wet belt lubrication usually used and required amount of water to save. Ideally, the water savings are 70-85 vol.%, With 85-95 vol.% Being even more preferred. Depending on the type of plant, a point of water savings of about 85% by volume or slightly above will reach a point where the metering equipment used in the field of wet-belt lubrication can no longer be readily used so that equipment conversion is required. This is partly due to the high pressure with which the belt lubricant in the dry belt lubrication must be applied to the conveyor system to ensure a sufficient amount of belt lubricant or chain lubricant on the conveyor belt.
- the silicone oil may, according to a preferred embodiment, be selected from polyalkyl, polyaryl and / or polyalkyl / polyarylsiloxanes and mixtures thereof.
- polydimethylsiloxane is known as the best-known and also suitable polysiloxane with respect to the polyalkylsiloxanes as the linear polysiloxane.
- the polyaryl siloxanes the diphenylsiloxane and furthermore, in particular in the area of the polyalkyl / polyaryl siloxanes, the phenylmethyl siloxanes are to be emphasized as suitable.
- amino-functional silicone oils are to be mentioned.
- the silicone oil used in the lubricants may have a viscosity of 180-80 cSt. preferably 120-90 cSt., Each at room temperature, have.
- silicone oils having a low viscosity have been found to be particularly suitable for use in belt lubrication because it is known that the siloxanes are more volatile with decreasing viscosity.
- Silicone oils with a viscosity of 50 and less cSt have accordingly proved difficult to handle in their own experiments.
- a silicone oil having a viscosity in the range of about 100 cSt has proven particularly useful.
- the chain lubricant or belt lubricant according to the invention preferably has a pH of between 6 and 8.5, preferably a pH of between 6.5 and 8.0.
- the invention also relates to the use of the chain lubricant or belt lubricant described in various embodiments for the water-reduced lubrication of conveyor belts for bottles, cans, other containers and boxes in the beverage and food processing industry, the cosmetic and pharmaceutical industries.
- the bottles, cans, other containers and boxes may have any material selected from glass, plastic, cardboard or metal. It is particularly possible and therefore worth mentioning that the conveyor belt may be formed of metal and the contact with the container material glass is smooth, especially without particularly observed material abrasion of the conveyor belt.
- the lubricant composition was prepared as an emulsion, and amounts are by weight unless otherwise specified.
- the products WEICO® COR and STERONAL-GR are used, which are commercially available from Tensid-Chemie GmbH in Muggensturm, Germany. With them, a silicone oil in the form of a polydimethylsiloxane, a nitrogen-containing compound based on alkylamine salts, which is used as a corrosion inhibitor, and a surfactant used as an emulsifier.
- a small amount of organic acid is included to adjust the pH.
- z. B. also acetic acid are added to the pH adjustment.
- the pH of the emulsion thus obtained was adjusted to about 7.6.
- the viscosity was in the range of about 100 cSt.
- the emulsion was prepared and used in a mixing ratio of STERONAL-GR to WEICO® COR of 80:20, each in aqueous phase.
- the emulsion obtained according to Example 1 was used in this test run as a 3% dilution in water for the water-reduced belt lubrication of metal strips, which should serve for the transport of glass bottles.
- the emulsion was applied to the conveyor belts of metal, in this case of stainless steel, by spraying together with an additional water content of 15% by volume.
- reference value (100%) for the additional water fraction thus used the amount of water usually used in conventional wet-tape lubrication is used here, as in the following.
- any other method of application which is well known per se such as e.g. the brushing.
- the conveyor systems have automatic applicators.
- the application of the belt lubricant according to the invention was carried out at intervals, wherein an order in this experiment took about 3 seconds and then about 20 minutes. was paused. Only then did a new order take place. This is a difference to wet belt lubrication, which can also be continuous.
- the emulsion obtained according to Example 1 was used in this test run as a 7% dilution in water for metal belts for transporting glass bottles.
- the emulsion was again applied by spraying together with an additional water content of 20% by volume.
- the conveyor was designed for the passage of about 80,000 bottles per hour. Approximately 8 to 15 ml of the prepared emulsion were used in each case for lubricating the conveyor belts.
- the application of the tape lubricant of the invention was carried out at intervals of 10 seconds, wherein after application for about 20 min. was paused. Only then did a new order take place.
- the emulsion obtained according to Example 1 was used in this test run as a 5% dilution in water for the water-reduced belt lubrication of plastic tapes, which should be used to transport 0.5 l PET bottles.
- the emulsion was applied to the conveyor belts by spraying together with an additional 15% by volume water content.
- the stress corrosion cracking was based on the work instructions CC (so-called Coca-Cola standard): Additives-Line Simulation; Version 1.0 of 15.10.98 determined. Table 1 shows that essentially no stress corrosion cracking could be detected. ⁇ b> Table 1: Testing for compatibility with CC reusable PET bottles ⁇ / b> No. Floor space (floor) Radial Base (wall) leak 0 A B C D 0 A B C D Yes No Ref. X X X Ref.
- the conventional wet-belt lubrication could be compared with the water-reduced belt lubrication according to the invention.
- the emulsion obtained according to Example 1 was used in this test run as a 2.5% dilution in water. It was tested on metal bands to transport glass bottles in a brewery. The plant had 53 and 190 nozzles, with a throughput of 9,500 and 30,000 bottles per hour. The emulsion was applied again by spraying.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Description
Die Erfindung betrifft ein Kettengleitmittel oder Bandschmiermittel zur wasserreduzierten Schmierung von Transportbändern für Flaschen, Dosen, sonstige Behälter und Kästen und die Verwendung des Kettengleitmittels oder Bandschmiermittels für die wasserreduzierte Schmierung solcher Transportbänder.The invention relates to a chain lubricant or belt lubricant for water-reduced lubrication of conveyor belts for bottles, cans, other containers and boxes and the use of chain lubricant or tape lubricant for the water-reduced lubrication of such conveyor belts.
Bandschmiermittel, die auch als Kettengleitmittel bezeichnet werden, dienen dem Transport von Glasflaschen oder Konservendosen, einschließlich Getränkedosen, sonstigen Behältern und Kästen auf Förderbändern. In neuerer Zeit werden in verstärktem Ausmaß auch Flaschen aus Kunststoff, hier vorzugsweise aus Polyethylentherephthalat, die als sogenannte PET-Flaschen bekannt sind, auf den Förderbändern transportiert.
Die Bandschmiermittel oder Kettengleitmittel sollen in der Regel emulgierende, reinigende und korrosionsinhibierende Eigenschaften aufweisen. Im Bereich der Getränkeindustrie werden dabei besonders hohe Anforderungen an die Hygiene gestellt.
In einer Flaschenabfüllanlage ist dabei der reibungslose Flaschentransport von größter Bedeutung. Treten hier Störungen auf, kann dies den Stillstand der gesamten Abfüll-Linie und damit hohe Ausfallkosten verursachen. Zur Verhinderung solcher Störungen kommt der Bandschmierung deshalb eine hohe Bedeutung zu. Die Bandschmierung sollte ein reibungsloses Funktionieren der Anlage gewährleisten und gleichzeitig die Verschleißerscheinungen sowohl an dem oder den Transportsystem(en) und and den Flaschen so gering wie möglich halten. Gleichzeitig dürfen dadurch die Betriebskosten nicht übermäßig steigen, sondern sollten gering gehalten werden.
Es ist derzeit üblich, Bandschmiermittel in einer hohen Verdünnung mit Wasser einzusetzen. Dabei erfolgt die Aufbereitung der Bandschmierlösung in Form einer volumenproportionalen Dosierung des Bandschmiermittels in einen Wasserstrom in einer zentralen Dosiereinheit. Die Lösung wird dann zu Düsen geleitet und von dort möglichst gleichmäßig aufgesprüht.Belt lubricants, also referred to as chain lubricants, are used to transport glass bottles or cans, including beverage cans, other containers and boxes on conveyor belts. More recently, plastic bottles, here preferably polyethylene terephthalate, known as so-called PET bottles, have also been transported on the conveyor belts to a greater extent.
The belt lubricants or chain lubricants should generally have emulsifying, cleansing and corrosion-inhibiting properties. In the field of the beverage industry, particularly high demands are placed on hygiene.
In a bottling plant, the smooth bottle transport is of utmost importance. If faults occur here, this can cause the entire filling line to come to a standstill and thus high downtime costs. To prevent such disturbances of the belt lubrication is therefore of great importance. Belt lubrication should ensure smooth operation of the equipment while minimizing wear on the transport system (s) and bottles. At the same time, this must not increase the operating costs excessively, but should be kept low.
It is currently common to use tape lubricants in a high dilution with water. The preparation of the belt lubricating solution takes place in the form of a volume-proportional metering of the belt lubricant into a water flow in a central metering unit. The solution is then passed to nozzles and sprayed from there as evenly as possible.
Die Förderbänder selbst können aus Stahl oder Kunststoff sein. Es können grundsätzlich Flaschen aus Glas oder Kunststoff, Dosen, Kisten, Fässer und Kartons transportiert werden.The conveyor belts themselves can be made of steel or plastic. Basically, bottles made of glass or plastic, cans, boxes, barrels and cartons can be transported.
Ein grundsätzliches Problem bei den Transportanlagen stellen Ablagerungen in den Leitungssystemen, Düsenstöcken, Düsen und Sieben dar. Außerdem kann eine störende Schaumentwicklung sowie Schlierenbildung bei dem Einsatz der Bandschmiermittel in der hohen Wasserverdünnung zu beobachten sein.
Ein besonderes Problem stellen aber die Kosten für die erheblichen Mengen an Frischwasserzufuhr und Abwasserentsorgung dar, die aufgrund der hohen Verdünnung dieser üblichen Bandschmiermittel bei der Naßbandschmierung zwangsläufig anfallen.A fundamental problem in the transport systems are deposits in the piping systems, nozzle sticks, nozzles and sieves. In addition, a disturbing foaming and streaks can be observed when using the belt lubricant in the high water dilution.
However, a particular problem is the cost of the significant amounts of fresh water supply and sanitation, which inevitably arise due to the high dilution of these conventional belt lubricant in the wet belt lubrication.
Deshalb sind im Stand der Technik des weiteren Versuche bekanntgeworden, die darauf abzielen, das Konzept der Naßbandschmierung durch eine Trockenbandschmierung zu ersetzen.
Trockenbandschmiermittel benötigen im wesentlichen kein Wasser, sind daher ohne das Problem einer störenden Schaumentwicklung zu nutzen und darüber hinaus auch noch unabhängig von der Wasserhärte.Therefore, further attempts have been made in the prior art to aim to replace the concept of wet belt lubrication with dry belt lubrication.
Dry-belt lubricants essentially do not require water, and therefore can be used without the problem of disruptive foaming and, moreover, irrespective of the hardness of the water.
So wird in der
Eingesetzt werden kann sie zum Schmieren der Oberfläche eines Förderbandes, das für den Transport von Glas-, Kunststoff- oder Kartonbehältern verwendet wird. Dabei können die Förderbänder aus einem Kunststoffmaterial, wie Polyacetal oder Polyamid ausgebildet sein. Außerdem soll die Schmiermittelzusammensetzung mit bestimmten Arten von Behältern auch auf Stahl- und damit Metallbahnen verwendbar sein.
Auch wenn über die Art der Behälter nichts Näheres ausgeführt ist, so ist es doch in den einschlägigen Fachkreisen bekannt, daß eine Trockenbandschmierung bis heute für den Transport von Glasflaschen auf Metallbahnen noch nicht zufriedenstellend möglich ist.
In bezug auf die eingesetzten Siliconöle wird die Verwendung von Polydimethylsiloxanen mit Viskositäten im Bereich von 1.000 - 30.000 mPa s (cSt) als geeignet bezeichnet. In den Ausführungsbeispielen wird ein Siliconöl mit einer Viskosität von 2.000 cSt verwendet.So will in the
It can be used to lubricate the surface of a conveyor belt used to transport glass, plastic or cardboard containers. The conveyor belts may be formed of a plastic material, such as polyacetal or polyamide. In addition, the lubricant composition with certain types of containers should also be usable on steel and thus metal sheets.
Although nothing more is said about the nature of the container, it is well known in the art that a dry belt lubrication is still not satisfactory for transporting glass bottles to metal webs.
With regard to the silicone oils used, the use of polydimethylsiloxanes having viscosities in the range of 1,000 to 30,000 mPas (cSt) is said to be suitable. In the embodiments, a silicone oil having a viscosity of 2,000 cSt is used.
Die
Hinzugefügt werden können dieser Ölemulsion Hilfsstoffe. Darunter fallen Dispergiermittel, Emulgatoren, oberflächenaktive Stoffe, Mittel zur Verhinderung oder Eindämmung des mikrobiellen Befalls einer Bandschmieranlage und Mittel zur Verminderung von Biofilmen, Mittel zur Verhinderung einer Spannungsrißkorrosion, Lösungsmittel zur Verdünnung und hydrotrophe Mittel als Lösungsvermittler. Amine bzw. Aminverbindungen haben im Bereich der technischen Chemie ein vielfältiges Anwendungsgebiet gefunden. So ist auch im wesentlichen in allen der erwähnten Gruppen von Hilfsstoffen die Verwendung unterschiedlichster Amine bzw. Aminverbindungen grundsätzlich bekannt. Diese werden von diesem Stand der Technik entsprechend auch bei der Nennung einer ganzen Reihe von möglichen Verbindungen mit aufgezählt. So werden z.B. im Bereich der Mittel zur Verminderung von Biofilmen in einer Bandschmieranlage Chelatbildner, wie EDTA und EGTA erwähnt. EDTA liegt dabei in der Regel als Ethylendiamintetraessigsäuredinatriumsalz vor. Das Ethylendiamintetraessigsäure-Anion hat ein Molekulargewicht von ca. 292.The
Can be added to this oil emulsion auxiliaries. These include dispersants, emulsifiers, surfactants, microbial attack prevention or control agents, and biofilm reduction agents, stress corrosion cracking agents, dilution solvents, and hydrotrope agents as solubilizers. Amines and amine compounds have found a wide range of applications in the field of industrial chemistry. Thus, the use of various amines or amine compounds is basically known in all of the mentioned groups of excipients. These are enumerated by this state of the art also in the mention of a whole series of possible connections with. For example, chelating agents, such as EDTA and EGTA, are mentioned in the field of agents for reducing biofilms in a belt lubrication system. EDTA is usually present as ethylenediaminetetraacetic acid disodium salt. The ethylenediaminetetraacetic acid anion has a molecular weight of about 292.
Des weiteren ist durch die
Noch eine Weiterbildung des Standes der Technik in Form der
Die
Ausgehend von diesem Stand der Technik liegt der vorliegenden Erfindung daher die Aufgabe zugrunde, eine Schmiermittelzusammensetzung bereitzustellen, die auch und insbesondere für den Transport von Glasflaschen auf Metallbahnen geeignet ist, und die den enormen Wasserverbrauch der Naßbandschmierung vermeidet, ohne dabei einen kostspieligen Anlagenumbau zu erfordern.Based on this prior art, the present invention therefore has for its object to provide a lubricant composition which is also and in particular suitable for the transport of glass bottles on metal webs, and which avoids the enormous water consumption of Naßbandschmierung without requiring a costly plant conversion.
Diese Aufgabe wird erfindungsgemäß durch ein Kettengleitmittel oder Bandschmiermittel für eine wasserreduzierte Schmierung von Transportbändern für Flaschen, Dosen, sonstigen Behältern und Kästen gelöst, mit einem Siliconöl, das eine Viskosität von 70-200 cSt, bei Raumtemperatur, aufweist, mit einem multifunktionellen Amin und mit zumindest einem Hilfsstoff, ausgewählt aus der Gruppe bestehend aus anionischen, nicht-ionischen, kationischen und/oder amphoteren Tensiden als Emulsion in wäßriger Phase, wobei das Amin ausgewählt ist aus Aminsalzen, bei welchen das Kation primäre, sekundäre, tertiäre, und/oder quarternäre Amine umfaßt, das Anion als ein organischer Rest ein Tensid ist, mit einem Molekulargewicht größer 350, vorzugsweise größer 400, und das Kettengleitmittel oder Bandschmiermittel 5 - 95 Gew.-% wäßrige Phase, 0,01 - 30 Gew.-% Siliconöl, 0,01 - 40 Gew.-% multifunktionelles Amin und 0,01 - 25 Gew.-% Tensid aufweist.This object is achieved by a chain lubricant or belt lubricant for a water-reduced lubrication of conveyor belts for Bottles, cans, other containers and boxes, with a silicone oil having a viscosity of 70-200 cSt, at room temperature, with a multifunctional amine and with at least one excipient selected from the group consisting of anionic, nonionic, cationic and / or amphoteric surfactants as an aqueous phase emulsion wherein the amine is selected from amine salts in which the cation comprises primary, secondary, tertiary and / or quaternary amines, the anion as an organic radical is a surfactant, having a molecular weight greater than 350, preferably greater than 400, and the chain lubricant or belt lubricant is 5-95% by weight of aqueous phase, 0.01-30% by weight of silicone oil, 0.01-40% by weight of multifunctional amine and 0.01-25 Wt .-% surfactant.
Dabei kann der gewichtsprozentuale Anteil des Tensids auch mit dem der Aminverbindung zusammenfallen, wenn der organische Rest als Anion des Aminsalzes ein Tensid ist.In this case, the percentage by weight of the surfactant may also coincide with that of the amine compound when the organic radical is a surfactant as an anion of the amine salt.
Unter einer multifunktionellen Stickstoffverbindung wird dabei im Rahmen der vorliegenden Erfindung eine solche Stickstoffverbindung verstanden, bei welcher mehr als zwei funktionelle Gruppen im gesamten Molekül vorhanden sind. Diese multifunktionelle Stickstoffverbindung bildet das Kation des erfindungsgemäßen Bandschmiermittels bzw. ist darin enthalten.
Das multifunktionelle Amin als Kation dieses Salzes kann grundsätzlich ein primäres, sekundäres, tertiäres und/oder quarternäres Amin sein. Im Zusammenhang mit der vorliegenden Erfindung sind insbesondere, aber nicht ausschließlich, Aminsalze auf der Basis von Fettsäuren, wie solche mit Lauryl-, Myristyl-, Cetyl- und Stearylresten zu nennen. Auch Fettamine sind zu nennen, wie die Alkylpropylendiamine, Alkylpropylentriamine und sonstige Alkylpropylenpolyamine.In the context of the present invention, a multifunctional nitrogen compound is understood as meaning such a nitrogen compound in which more than two functional groups are present in the entire molecule. This multifunctional nitrogen compound forms the cation of the tape lubricant of the invention or is contained therein.
The multifunctional amine as a cation of this salt may in principle be a primary, secondary, tertiary and / or quaternary amine. In the context of the present invention are particularly, but not exclusively, amine salts based on fatty acids, such as those having lauryl, myristyl, cetyl and stearyl radicals mentioned. Also fatty amines are mentioned, such as the alkylpropylenediamines, alkylpropylenetriamines and other alkylpropylenepolyamines.
Als Anion dieses Aminsalzes, das selbst kein Amin oder eine Aminverbindung aufweist, ist ein organischer Rest mit einem Molekulargewicht größer 350, vorzugsweise größer 400 und besonders bevorzugt größer 500 enthalten. Versuchsergebnisse haben ergeben, daß das hochmolekulare Anion die Schmierwirkung positiv beeinflußt. Es hat sich des weiteren gezeigt, daß sich die besondere Schmierwirkung des erfindungsgemäßen Kettengleitmittels oder Bandschmiermittels durch ein synergistisches Zusammenwirken der multifunktionellen Stickstoffverbindung in Form des Aminsalzes mit dem Siliconöl ergibt.An anion of this amine salt, which itself has no amine or an amine compound, is an organic radical having a molecular weight of greater than 350, preferably greater than 400, and particularly preferably greater than 500. Experimental results have shown that the high molecular weight anion the lubricity positive affected. It has also been found that the particular lubricating effect of the inventive chain lubricant or belt lubricant results from a synergistic interaction of the multifunctional nitrogen compound in the form of the amine salt with the silicone oil.
Bei dem als zumindest einem Hilfsstoff enthaltenen Tensid kommen als anionische Tenside grundsätzlich Alkylbenzolsulfonate (ABS) und Fettalkoholsulfate sowie sekundäre Alkansulfonate (SAS) in Betracht. In bezug auf ABS und SAS ist deren Eigenschaft zu erwähnen, auch bei hartem Wasser problemlos eingesetzt werden zu können. Außerdem zeichnen sich diese Tenside durch gute Benetzungseigenschaften aus.
Gemäß einer Ausführungsvariante des erfindungsgemäßen Bandschmiermittels kann zumindest eines des in dem Bandschmiermittel enthaltenen Tensids der organische Rest als Anion des Aminsalzes selbst sein.In the case of the surfactant contained as at least one excipient, anionic surfactants generally include alkylbenzenesulfonates (ABS) and fatty alcohol sulfates, as well as secondary alkanesulfonates (SAS). With regard to ABS and SAS their property is to be mentioned, even with hard water to be used easily. In addition, these surfactants are characterized by good wetting properties.
According to one embodiment of the belt lubricant according to the invention, at least one of the surfactant contained in the belt lubricant may be the organic radical as an anion of the amine salt itself.
Abgesehen von den genannten Vorteilen der ABS und SAS sind allerdings die nichtionischen Tenside eher bevorzugt, von denen insbesondere die Polyalkylenglykolether oder Fettalkoholethoxylate, die Fettalkoholpropoxylate und die Alkylphenolethoxylate beispielhaft zu nennen sind.Apart from the abovementioned advantages of the ABS and SAS, however, preference is given to the nonionic surfactants, of which in particular the polyalkylene glycol ethers or fatty alcohol ethoxylates, the fatty alcohol propoxylates and the alkylphenol ethoxylates may be mentioned by way of example.
Als weitere Hilfsstoffe kommen gegebenenfalls der Zusatz einer schwachen Säure in geringer Menge als Lösungsvermittler, ein Duft- und/oder eventuell auch ein Farbstoff und Konservierungsstoffe in Frage.As further auxiliaries optionally the addition of a weak acid in a small amount as a solubilizer, a fragrance and / or possibly also a dye and preservatives in question.
Das erfindungsgemäße Kettengleitmittel oder Bandschmiermittel zeichnet sich durch eine sehr gute Materialverträglichkeit, auch in bezug auf die üblichen Druckfarben auf Kartonverpackungen aus, ist schaumarm und unabhängig von der von der jeweils vorliegenden Wasserhärte. Es zeichnet sich insbesondere durch hervorragende Transporteigenschaften von Glasflaschen auf Metallketten aus.The inventive chain lubricant or belt lubricant is characterized by a very good material compatibility, also with respect to the usual printing inks on cardboard packaging, low foaming and independent of the water hardness present in each case. It is characterized in particular by excellent transport properties of glass bottles on metal chains.
Ein besonderer Vorzug des erfindungsgemäßen Kettengleitmittels oder Bandschmiermittels besteht darin, einen erheblichen Anteil der bei der konventionellen Naßbandschmierung üblicherweise eingesetzten und erforderlichen Wassermenge einsparen zu können. Idealerweise beträgt die Wassereinsparung 70 - 85 Vol.-%, wobei 85 - 95 Vol.-% noch mehr bevorzugt ist. Je nach Anlagentyp wird bei einer Wassereinsparung von etwa 85 Vol.-% oder etwas darüber ein Punkt erreicht, an dem die Dosieranlage, wie sie im Bereich der Naßbandschmierung verwendet wird, nicht mehr ohne weiteres verwendet werden kann, so daß ein Anlagenumbau erforderlich wird. Bedingt ist dies zum einen durch den hohen Druck, mit dem das Bandschmiermittel im Bereich der Trockenbandschmierung auf die Förderanlage aufgebracht werden muß, um eine ausreichende Menge des Bandschmiermittels bzw. Kettengleitmittels auf dem Förderband zu gewährleisten. Außerdem sind die aufzubringenden Volumen viel geringer, da nur kleine bis kleinste Mengen des Bandschmiermittels benötigt werden. Aufgrund dieser geringen Fördermengen sind deutlich kleinere Pumpen und damit verbunden ist dann ein Anlagenumbau erforderlich.
In verschiedenen Versuchen wurde auch für eine Wasserreduktion von 70 - 40 Vol.-%, und sogar 40 - 30 Vol.-% eine gute Bandschmierung in Verbindung mit einer in wirtschaftlicher Hinsicht noch ausreichenden Wasserreduktion erreicht. Dabei kann in jedem Fall die Anlage ohne Umbau weiterverwendet werden, da sich die Pumpenleistung zur Dosierung des Bandschmiermittels bei dieser Wasserreduktion als ausreichend erwiesen hat.A particular advantage of the chain lubricant or belt lubricant according to the invention consists in a considerable proportion of the conventional Wet belt lubrication usually used and required amount of water to save. Ideally, the water savings are 70-85 vol.%, With 85-95 vol.% Being even more preferred. Depending on the type of plant, a point of water savings of about 85% by volume or slightly above will reach a point where the metering equipment used in the field of wet-belt lubrication can no longer be readily used so that equipment conversion is required. This is partly due to the high pressure with which the belt lubricant in the dry belt lubrication must be applied to the conveyor system to ensure a sufficient amount of belt lubricant or chain lubricant on the conveyor belt. In addition, the volumes to be applied are much lower, since only small to very small amounts of belt lubricant are needed. Due to these low flow rates are significantly smaller pumps and associated with a plant conversion is required.
In various experiments, a good belt lubrication in conjunction with a still economically sufficient water reduction was achieved for a water reduction of 70-40 vol .-%, and even 40-30% by volume. In each case, the system can be reused without conversion, since the pump performance for metering the belt lubricant has proven to be sufficient in this water reduction.
Das Siliconöl kann gemäß einer bevorzugten Ausführungsform ausgewählt sein aus Polyalkyl-, Polyaryl- und/oder Polyalkyl-/Polyarylsiloxanen sowie Mischungen davon.
Bei diesen Polysiloxanen ist in bezug auf die Polyalkylsiloxane als bekanntestes und auch geeignetes Polysiloxan Polydimethylsiloxan als lineares Polysiloxan zu nennen. Bei den Polyarylsiloxanen ist das Diphenylsiloxan und des weiteren sind insbesondere im Bereich der Polyalkyl-/Polyarylsiloxane die Phenylmethylsiloxane als geeignet hervorzuheben. Auch aminofunktionelle Silikonöle sind zu erwähnen.The silicone oil may, according to a preferred embodiment, be selected from polyalkyl, polyaryl and / or polyalkyl / polyarylsiloxanes and mixtures thereof.
In the case of these polysiloxanes, polydimethylsiloxane is known as the best-known and also suitable polysiloxane with respect to the polyalkylsiloxanes as the linear polysiloxane. In the case of the polyaryl siloxanes, the diphenylsiloxane and furthermore, in particular in the area of the polyalkyl / polyaryl siloxanes, the phenylmethyl siloxanes are to be emphasized as suitable. Also amino-functional silicone oils are to be mentioned.
Gemäß einer weiteren Ausführungsform kann das in den Schmiermitteln eingesetzte Siliconöl eine Viskosität von 180 - 80 cSt,. bevorzugt 120 - 90 cSt., jeweils bei Raumtemperatur, aufweisen.According to another embodiment, the silicone oil used in the lubricants may have a viscosity of 180-80 cSt. preferably 120-90 cSt., Each at room temperature, have.
Es ist an sich überraschend, daß Silikonöle mit einer niedrigen Viskosität als für den Einsatz bei der Bandschmierung besonders geeignet aufgefunden wurden, weil bekannt ist, daß die Siloxane mit abnehmender Viskosität leichtflüchtiger sind.It is surprising that silicone oils having a low viscosity have been found to be particularly suitable for use in belt lubrication because it is known that the siloxanes are more volatile with decreasing viscosity.
Silikonöle mit einer Viskosität von 50 und weniger cSt haben sich dementsprechend bei eigenen Versuchen als schwer handhabbar herausgestellt. In der Praxis hat sich vorliegend insbesondere ein Silikonöl mit einer Viskosität im Bereich um etwa 100 cSt besonders bewährt.Silicone oils with a viscosity of 50 and less cSt have accordingly proved difficult to handle in their own experiments. In practice, in particular, a silicone oil having a viscosity in the range of about 100 cSt has proven particularly useful.
Vorzugsweise weist das erfindungsgemäße Kettengleitmittel oder Bandschmiermittel einen pH-Wert zwischen 6 und 8,5, vorzugsweise einen pH-Wert zwischen 6,5 und 8,0 auf.The chain lubricant or belt lubricant according to the invention preferably has a pH of between 6 and 8.5, preferably a pH of between 6.5 and 8.0.
Die Erfindung betrifft ebenso die Verwendung des in diversen Ausführungsformen beschriebenen Kettengleitmittels oder Bandschmiermittels für die wasserreduzierte Schmierung von Transportbändern für Flaschen, Dosen, sonstigen Behältern und Kästen in der Getränke und Nahrungsmittel verarbeitenden Industrie, der kosmetischen und der pharmazeutischen Industrie.
Dabei können die Flaschen, Dosen, sonstigen Behälter und Kästen ein beliebiges Material aufweisen, das ausgewählt ist aus Glas, Kunststoff, Karton oder Metall.
Dabei ist es im besonderen möglich und daher erwähnenswert, daß das das Förderband aus Metall ausgebildet sein kann und der Kontakt zu dem Behältermaterial Glas reibungslos, insbesondere auch ohne besonders beobachteten Materialabrieb des Förderbandes erfolgt.The invention also relates to the use of the chain lubricant or belt lubricant described in various embodiments for the water-reduced lubrication of conveyor belts for bottles, cans, other containers and boxes in the beverage and food processing industry, the cosmetic and pharmaceutical industries.
The bottles, cans, other containers and boxes may have any material selected from glass, plastic, cardboard or metal.
It is particularly possible and therefore worth mentioning that the conveyor belt may be formed of metal and the contact with the container material glass is smooth, especially without particularly observed material abrasion of the conveyor belt.
Im folgenden soll die Erfindung anhand von Ausführungsbeispielen näher erläutert werden.In the following, the invention will be explained in more detail with reference to embodiments.
Die Schmiermittelzusammensetzung wurde als Emulsion hergestellt, wobei sich Mengenangaben auf Gew.-% beziehen, sofern nichts anderes angegeben ist.
Als Bestandteile der Zusammensetzung werden die Produkte WEICO® COR und STERONAL-GR verwendet, die im Handel von der Tensid-Chemie GmbH in Muggensturm, Deutschland, erhältlich sind.
Mit ihnen wird ein Siliconöl in Form eines Polydimethylsiloxans, eine stickstoffhaltige Verbindung auf der Basis von Alkylaminsalzen, die als Korrosionsinhibitor Verwendung findet, und ein Tensid als Emulgator eingesetzt. Des weiteren ist ein geringer Anteil an organischer Säure enthalten, um den pH-Wert einzustellen. Nach Bedarf kann z. B. auch noch Essigsäure zur pH-Wert-Einstellung hinzugegeben werden. Der pH-Wert der so erhaltenen Emulsion wurde auf ca. 7,6 eingestellt. Die Viskosität lag im Bereich von ca. 100 cSt.
Die Emulsion wurde im Mischungsverhältnis STERONAL-GR zu WEICO® COR von 80 : 20, jeweils in wäßriger Phase, hergestellt und verwendet.The lubricant composition was prepared as an emulsion, and amounts are by weight unless otherwise specified.
As components of the composition, the products WEICO® COR and STERONAL-GR are used, which are commercially available from Tensid-Chemie GmbH in Muggensturm, Germany.
With them, a silicone oil in the form of a polydimethylsiloxane, a nitrogen-containing compound based on alkylamine salts, which is used as a corrosion inhibitor, and a surfactant used as an emulsifier. Furthermore, a small amount of organic acid is included to adjust the pH. As needed, z. B. also acetic acid are added to the pH adjustment. The pH of the emulsion thus obtained was adjusted to about 7.6. The viscosity was in the range of about 100 cSt.
The emulsion was prepared and used in a mixing ratio of STERONAL-GR to WEICO® COR of 80:20, each in aqueous phase.
Die gemäß Beispiel 1 erhaltene Emulsion wurde in diesem Versuchsdurchlauf angewendet als 3%-ige Verdünnung in Wasser für die wasserreduzierte Bandschmierung von Metallbändern, die zum Transport von Glasflaschen dienen sollten. Die Emulsion wurde auf die Förderbänder aus Metall, vorliegend aus Edelstahl, durch Spritzen zusammen mit einem zusätzlichen Wasseranteil von 15 Vol. -% aufgetragen. Als Bezugsgröße (100 %) für den so verwendeten zusätzlichen Wasseranteil dient hier wie im folgenden die im Rahmen der konventionellen Naßbandschmierung üblicherweise eingesetzte Wassermenge.The emulsion obtained according to Example 1 was used in this test run as a 3% dilution in water for the water-reduced belt lubrication of metal strips, which should serve for the transport of glass bottles. The emulsion was applied to the conveyor belts of metal, in this case of stainless steel, by spraying together with an additional water content of 15% by volume. As reference value (100%) for the additional water fraction thus used, the amount of water usually used in conventional wet-tape lubrication is used here, as in the following.
Neben dem Auftragen durch Spritzen eignet sich im übrigen auch jede andere, an sich gut bekannte Auftragemethode, wie z.B. das Bürsten. In der Regel weisen die Förderanlagen automatische Auftragevorrichtungen auf.Incidentally, in addition to application by spraying, any other method of application which is well known per se, such as e.g. the brushing. As a rule, the conveyor systems have automatic applicators.
Verbraucht wurden für jeweils ein Schmieren der Förder- bzw. Transportbänder einer Anlage, die für den Durchlauf von etwa 20 - 30.000 Flaschen pro Stunde ausgerichtet war, ca. 5 bis 12 ml an Bandschmiermittel gemäß Beispiel 1, so daß die Anwendung sehr sparsam möglich ist.For each lubrication of the conveyor or conveyor belts of a plant, which was aligned for the passage of about 20-30,000 bottles per hour, about 5 to 12 ml of tape lubricant according to Example 1, so that the application is very economical possible ,
Das Auftragen des erfindungsgemäßen Bandschmiermittels erfolgte in Intervallen, wobei ein Auftrag in diesem Versuch ca. 3 sec dauerte und danach etwa 20 min. pausiert wurde. Erst dann erfolgte jeweils ein neuer Auftrag. Dies ist ein Unterschied zu der Naßbandschmierung, die auch kontinuierlich erfolgen kann.The application of the belt lubricant according to the invention was carried out at intervals, wherein an order in this experiment took about 3 seconds and then about 20 minutes. was paused. Only then did a new order take place. This is a difference to wet belt lubrication, which can also be continuous.
Die gemäß Beispiel 1 erhaltene Emulsion wurde in diesem Versuchsdurchlauf angewendet als 7%-ige Verdünnung in Wasser für Metallbänder zum Transport von Glasflaschen. Die Emulsion wurde wieder durch Spritzen zusammen mit einem zusätzlichen Wasseranteil von 20 Vol. -% aufgetragen. Die Förderanlage war für den Durchlauf von etwa 80.000 Flaschen pro Stunde ausgerichtet. Verbraucht wurden jeweils für das Schmieren der Förderbänder ca. 8 bis 15 ml der vorbereiteten Emulsion.
Das Auftragen des erfindungsgemäßen Bandschmiermittels erfolgte in Intervallen von jeweils 10 sec, wobei nach dem Auftragen etwa 20 min. pausiert wurde. Erst dann erfolgte jeweils ein neuer Auftrag.The emulsion obtained according to Example 1 was used in this test run as a 7% dilution in water for metal belts for transporting glass bottles. The emulsion was again applied by spraying together with an additional water content of 20% by volume. The conveyor was designed for the passage of about 80,000 bottles per hour. Approximately 8 to 15 ml of the prepared emulsion were used in each case for lubricating the conveyor belts.
The application of the tape lubricant of the invention was carried out at intervals of 10 seconds, wherein after application for about 20 min. was paused. Only then did a new order take place.
Die gemäß Beispiel 1 erhaltene Emulsion wurde in diesem Versuchsdurchlauf angewendet als 5%-ige Verdünnung in Wasser für die wasserreduzierte Bandschmierung von Kunststoffbändern, die zum Transport von 0,5 l PET-Flaschen dienen sollten. Die Emulsion wurde auf die Förderbänder durch Spritzen zusammen mit einem zusätzlichen Wasseranteil von 15 Vol. -% aufgetragen.The emulsion obtained according to Example 1 was used in this test run as a 5% dilution in water for the water-reduced belt lubrication of plastic tapes, which should be used to transport 0.5 l PET bottles. The emulsion was applied to the conveyor belts by spraying together with an additional 15% by volume water content.
Es wurde auch hier auf einer Anlage gearbeitet, die für den Durchlauf von etwa 20 - 30.000 Flaschen ausgerichtet war. Verbraucht wurden jeweils für das Schmieren der Förderbänder ca. 5 bis 12 ml der vorbereiteten Emulsion, so daß auch diese Anwendung sehr sparsam möglich ist.
Die Anwendung erfolgte wieder im Intervall nach jeweils etwa 20 min. Ein Auftrag dauerte ca. 3 sec.It was also worked here on a plant, which was aligned for the passage of about 20 - 30,000 bottles. 5 to 12 ml of the prepared emulsion were consumed in each case for the lubrication of the conveyor belts, so that this application is possible very sparingly.
The application was again in the interval after about 20 minutes. An order lasted about 3 seconds.
Die Spannungsrißkorrosion wurde angelehnt an die Arbeitsanweisung CC (sogenannte Coca-Cola-Norm): Additives-Line Simulation; Version 1.0 vom 15.10.98 bestimmt. Tabelle 1 zeigt, daß im wesentlichen keine Spannungsrißkorrosion festgestellt werden konnte.
A - geringe, sehr oberflächliche Risse
B - mäßige, oberflächliche Risse
C - größere, mittelgradig tiefe Risse
D - größere, tiefe Risse
A - small, very superficial cracks
B - moderate, superficial cracks
C - larger, moderately deep cracks
D - larger, deep cracks
Mit dieser Versuchsdurchführung konnte die konventionelle Naßbandschmierung mit der erfindungsgemäßen wasserreduzierten Bandschmierung verglichen werden.
Die gemäß Beispiel 1 erhaltene Emulsion wurde in diesem Versuchsdurchlauf als 2,5%-ige Verdünnung in Wasser angewendet. Es wurde auf Metallbändern zum Transport von Glasflaschen in einer Brauerei getestet. Die Anlage wies 53 und 190 Düsen auf, mit einem Durchsatz von 9.500 bzw. 30.000 Flaschen pro Stunde. Die Emulsion wurde wieder durch Spritzen aufgetragen.With this experimental procedure, the conventional wet-belt lubrication could be compared with the water-reduced belt lubrication according to the invention.
The emulsion obtained according to Example 1 was used in this test run as a 2.5% dilution in water. It was tested on metal bands to transport glass bottles in a brewery. The plant had 53 and 190 nozzles, with a throughput of 9,500 and 30,000 bottles per hour. The emulsion was applied again by spraying.
Die Anwendung erfolgte wieder im Intervall nach jeweils etwa 20 min. Die Auftragezeit betrug 5 sec. Tabelle 2 gibt die Versuchsergebnisse im Überblick wieder.
Alle Versuche der 1. bis 3. Anwendung wurden so, wie dort beschrieben wiederholt, jedoch wurde die Anlage nach dem davor zuletzt durchgeführten Versuchsdurchlauf für jeden der Versuche der 1. - 3. Anwendung eine ganze Woche lang unbenutzt und ungereinigt stehengelassen. Die Anlage lief trotzdem problemlos und ohne Störungen.
Bei der 3. Anwendung wurde die Spannungsrißkorrosion wieder nach den Anforderungen der in der Branche bekannten und als Bewertungsgrundlage dienenden Coca-Cola-Norm bestimmt. Es konnte selbst hier keine Spannungsrißkorrosion festgestellt werden.All experiments of the 1st to 3rd application were repeated as described there, but the plant was left unused and uncleaned for a whole week after the last run of the experiment for each of the experiments of the 1st - 3rd application. The system was still running smoothly and without interference.
In the third application, stress corrosion cracking was again determined according to the requirements of the Coca-Cola standard known in the industry and used as a basis for evaluation. Even here, no stress corrosion cracking could be detected.
Insgesamt ergab sich bei allen durchgeführten Versuchen eine Wasserersparnis zwischen 70 und 85%.Overall, in all experiments carried out a water savings of between 70 and 85%.
Das im Handel unter der Bezeichnung "DryExx" erhältliche Trockenbandschmiermittel der Ecolab Deutschland GmbH, das ebenso ein Siliconöl aufweist, aber keine polyfunktionelle Stickstoffverbindung, wurde im Versuchstechnikum getestet. Dazu wurden mehrere Glasflaschen auf einem Edelstahlband transportiert. Es wurden Konzentrationen von 2,0% und 10% des genannten Bandschmiermittel-Konzentrats eingesetzt.
Bei jeweils mehreren Durchgängen zeigte sich keine gute Schmierwirkung und zusätzlich kein nennenswerter Unterschied bei den beiden verwendeten unterschiedlichen Konzentrationen. Sowohl das Transportband als auch die Flaschen darauf liefen sehr unruhig. Die Flaschen liefen sehr abgehackt und fielen oft um.The dry-line lubricant of Ecolab Deutschland GmbH, which is also commercially available under the name "DryExx" and which also contains a silicone oil but no polyfunctional nitrogen compound, was tested in the test laboratory. Several glass bottles were transported on a stainless steel belt. Concentrations of 2.0% and 10% of said belt lubricant concentrate were used.
In each case several passes showed no good lubricating effect and in addition no significant difference in the two different concentrations used. Both the conveyor belt and the bottles ran very restless. The bottles were very choppy and often fell over.
Dieser Versuch zeigte, daß marktübliche Trockenbandschmiermittel nicht für den Transport von Glasflaschen auf Metallketten unter den Bedingungen der wasserreduzierten Bandschmierung bzw. ohne Zusatz von Wasser durchgeführten Bandschmierung geeignet sind.This experiment showed that commercially available dry belt lubricants are not suitable for the transport of glass bottles on metal chains under the conditions of water-reduced Belt lubrication or without the addition of water performed belt lubrication are suitable.
Bei der erfindungsgemäßen wasserreduzierten Bandschmierung selbst wird dagegen eine deutliche Menge der wertvollen Resource Wasser eingespart, ohne eine optimale Schmierwirkung und damit einen reibungslosen Transport der Behältnisse zu gefährden.
Es zeigte sich, daß bei den Anwendungen des Beispiels 1 der reibungslose Transport durch Erniedrigung des Reibbeiwertes teilweise sogar noch gesteigert werden konnte.In the inventive water-reduced belt lubrication itself, however, a significant amount of valuable resource water is saved without jeopardizing an optimal lubricating effect and thus a smooth transport of the containers.
It was found that in the applications of Example 1, the frictionless transport could even be partially increased by lowering the coefficient of friction.
Claims (7)
- Chain lubricant or belt lubricant for the water-reduced lubrication of conveyor belts for bottles, cans, and other containers and boxes, with a silicone oil that has a viscosity of 70-200 cSt at room temperature, and with a multi-functional amine and at least one adjuvant selected from the group consisting of anionic, nonionic, cationic and/or amphoteric surfactants, as emulsion in the aqueous phase; where the amine is selected from amine salts in which the cation includes primary, secondary, tertiary and/or quaternary amines, and the anion as an organic radical is a surfactant, with a molecular weight of more than 350, preferably more than 400, and the chain lubricant or belt lubricant has- 5 - 95 wt. aqueous phase,- 0.01 - 30 wt.-% Silicone oil,- 0.01- 40 wt.-% multi-functional amine and- 0.01 - 25 wt.-% surfactant.
- Chain lubricant or belt lubricant according to claim 1, characterized in that the silicone oil is selected from polyalkyl-siloxanes, polyaryl-siloxanes and/or polyalkyl/polyaryl-siloxanes and mixtures thereof.
- Chain lubricant or belt lubricant according to claim 2, characterized in that the silicone oil is selected from polydimethylsiloxanes.
- Chain lubricant or belt lubricant according to one of the claims 1 to 3, characterized in that the silicone oil has a viscosity of 180-80 cSt, preferably 120-90 cSt, at room temperature.
- Use of the chain lubricant or belt lubricant according to one of the claims 1 to 4 for the water-reduced lubrication of conveyor belts for bottles, cans, and other containers and boxes in the beverage and food processing industry, the cosmetic and the pharmaceutical industry.
- Use according to claim 5 for the lubrication of conveyor belts for bottles, cans, other containers, and boxes made of glass, plastic, cardboard or metal.
- Use according to claim 5 or 6 for the lubrication of conveyor belts made of metal or plastic.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL09764712T PL2344613T3 (en) | 2008-11-07 | 2009-11-09 | Lubricant for water-reduced belt lubrication |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008056440A DE102008056440A1 (en) | 2008-11-07 | 2008-11-07 | Lubricant for water-reduced belt lubrication |
PCT/EP2009/007994 WO2010052018A1 (en) | 2008-11-07 | 2009-11-09 | Lubricant for water-reduced belt lubrication |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2344613A1 EP2344613A1 (en) | 2011-07-20 |
EP2344613B1 true EP2344613B1 (en) | 2017-01-04 |
Family
ID=41820524
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09764712.7A Active EP2344613B1 (en) | 2008-11-07 | 2009-11-09 | Lubricant for water-reduced belt lubrication |
Country Status (10)
Country | Link |
---|---|
US (1) | US20110269653A1 (en) |
EP (1) | EP2344613B1 (en) |
BR (1) | BRPI0921344A2 (en) |
CL (1) | CL2011001029A1 (en) |
DE (1) | DE102008056440A1 (en) |
EC (1) | ECSP11011037A (en) |
MX (1) | MX2011004926A (en) |
PL (1) | PL2344613T3 (en) |
RU (1) | RU2605750C2 (en) |
WO (1) | WO2010052018A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7741257B2 (en) | 2005-03-15 | 2010-06-22 | Ecolab Inc. | Dry lubricant for conveying containers |
US7745381B2 (en) | 2005-03-15 | 2010-06-29 | Ecolab Inc. | Lubricant for conveying containers |
AU2011306381C1 (en) | 2010-09-24 | 2016-10-20 | Ecolab Usa Inc. | Conveyor lubricants including emulsions and methods employing them |
CN102618373B (en) * | 2012-03-08 | 2013-10-16 | 柳州市恒一环保科技有限公司 | Oil-free lubricating agent for bicycle chain and preparation method of oil-free lubricating agent |
CA2904930C (en) | 2013-03-11 | 2021-12-14 | Ecolab Usa Inc. | Lubrication of transfer plates using an oil or oil in water emulsions |
RU2537294C1 (en) * | 2013-12-24 | 2014-12-27 | Общество с Ограниченной Ответственностью Научно-Производственное Предприятие "Альфа-Сервис" (ООО НПП "Альфа-Сервис") | Water-soluble lubricating composition for conveyor belt processing |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4420578A (en) * | 1980-11-10 | 1983-12-13 | Diversey Corporation | Surface treatment of glass containers |
SU1498786A1 (en) * | 1987-03-30 | 1989-08-07 | Восточный научно-исследовательский горнорудный институт | Lubrication composition for strip moving along troughs in rollerless conveyers |
ES2386297T3 (en) | 1999-07-22 | 2012-08-16 | Diversey, Inc. | Use of lubricant composition to lubricate a conveyor belt |
US7384895B2 (en) * | 1999-08-16 | 2008-06-10 | Ecolab Inc. | Conveyor lubricant, passivation of a thermoplastic container to stress cracking and thermoplastic stress crack inhibitor |
US6495494B1 (en) * | 2000-06-16 | 2002-12-17 | Ecolab Inc. | Conveyor lubricant and method for transporting articles on a conveyor system |
DE19942536A1 (en) * | 1999-09-07 | 2001-03-08 | Henkel Ecolab Gmbh & Co Ohg | Use of polysiloxane-based lubricants |
US6509302B2 (en) * | 2000-12-20 | 2003-01-21 | Ecolab Inc. | Stable dispersion of liquid hydrophilic and oleophilic phases in a conveyor lubricant |
US7745381B2 (en) * | 2005-03-15 | 2010-06-29 | Ecolab Inc. | Lubricant for conveying containers |
US7741257B2 (en) * | 2005-03-15 | 2010-06-22 | Ecolab Inc. | Dry lubricant for conveying containers |
US7915206B2 (en) * | 2005-09-22 | 2011-03-29 | Ecolab | Silicone lubricant with good wetting on PET surfaces |
US7741255B2 (en) | 2006-06-23 | 2010-06-22 | Ecolab Inc. | Aqueous compositions useful in filling and conveying of beverage bottles wherein the compositions comprise hardness ions and have improved compatibility with pet |
EP1932901A1 (en) * | 2006-12-12 | 2008-06-18 | JohnsonDiversey, Inc. | A method of lubricating a conveyor belt |
WO2008121720A1 (en) * | 2007-03-29 | 2008-10-09 | Johnsondiversey, Inc. | Conveyor lubricants and methods for making and using the same |
EP2093278A1 (en) * | 2008-02-05 | 2009-08-26 | Evonik Goldschmidt GmbH | Performance additive for improving the sprinkling characteristics of ionic fluids on solid surfaces |
-
2008
- 2008-11-07 DE DE102008056440A patent/DE102008056440A1/en not_active Withdrawn
-
2009
- 2009-11-09 WO PCT/EP2009/007994 patent/WO2010052018A1/en active Application Filing
- 2009-11-09 PL PL09764712T patent/PL2344613T3/en unknown
- 2009-11-09 US US12/998,602 patent/US20110269653A1/en not_active Abandoned
- 2009-11-09 MX MX2011004926A patent/MX2011004926A/en not_active Application Discontinuation
- 2009-11-09 RU RU2011119926/04A patent/RU2605750C2/en not_active IP Right Cessation
- 2009-11-09 BR BRPI0921344A patent/BRPI0921344A2/en not_active Application Discontinuation
- 2009-11-09 EP EP09764712.7A patent/EP2344613B1/en active Active
-
2011
- 2011-05-09 CL CL2011001029A patent/CL2011001029A1/en unknown
- 2011-05-09 EC EC2011011037A patent/ECSP11011037A/en unknown
Also Published As
Publication number | Publication date |
---|---|
PL2344613T3 (en) | 2017-07-31 |
MX2011004926A (en) | 2011-09-06 |
DE102008056440A1 (en) | 2010-05-20 |
BRPI0921344A2 (en) | 2015-12-29 |
ECSP11011037A (en) | 2011-08-31 |
CL2011001029A1 (en) | 2011-10-07 |
WO2010052018A1 (en) | 2010-05-14 |
RU2011119926A (en) | 2012-12-20 |
US20110269653A1 (en) | 2011-11-03 |
RU2605750C2 (en) | 2016-12-27 |
EP2344613A1 (en) | 2011-07-20 |
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