CN102746930B - Grease used specially for sintering machine in metallurgical industry and preparation method thereof - Google Patents

Grease used specially for sintering machine in metallurgical industry and preparation method thereof Download PDF

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CN102746930B
CN102746930B CN201210214194.6A CN201210214194A CN102746930B CN 102746930 B CN102746930 B CN 102746930B CN 201210214194 A CN201210214194 A CN 201210214194A CN 102746930 B CN102746930 B CN 102746930B
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base oil
rust
pressure anti
mixture
extreme pressure
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CN102746930A (en
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高晓谋
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Anhui Zhong Tian Petrochemical Co ltd
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Anqing Zhongtian Petroleum Chemical Industry Co Ltd
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Abstract

The invention discloses grease used specially for a sintering machine in a metallurgical industry and a preparation method thereof. The grease used specially for a sintering machine comprises: by weight, 3 to 6% of octadecylamine, 2 to 5% of aniline, 1 to 3% of ethanediamine, 2 to 3% of diphenylmethane-4,4'-diisocyanate (MDI), 50 to 70% of base oil A, 20 to 30% of base oil B, 0.5 to 1% of an antioxidant A, 2 to 4% of an antioxidant B, 1 to 2% of a rust inhibitor A, 2 to 3% of a rust inhibitor B, 2 to 5% of an extreme-pressure anti-wear agent A, 2 to 4% of an extreme-pressure anti-wear agent B, and 10 to 20% of a tackifier. In preparation, the raw materials are mixed by stirring in a certain order according to different temperatures and then are treated by related processes. The grease used specially for a sintering machine overcomes defects of the existing grease and is suitable for lubrication of bearings at different positions of an elastic slide of a large-scale sintering machine in a metallurgical industry and for lubrication of other high-temperature devices such as a soaking pit furnace, an annealing furnace and a drying furnace.

Description

A kind of lubricating grease that is exclusively used in metallurgy industry sinter machine and preparation method thereof
Technical field
The present invention relates to lubricating grease field, be specifically related to a kind of lubricating grease that is exclusively used in metallurgy industry sinter machine and preparation method thereof.
Background technology
The sintering work Production Flow Chart of sinter machine is longer, and equipment is comparatively numerous and diverse, adds that it,, in special working conditions such as high temperature, many dirt, heavy duty and sour gas environment, makes it quite harsh to the requirement of lubricating grease.The sintering work of sinter machine is to realize by high negative pressure operation, and the aeroseal sheet of sinter machine has deadweight and elastic force, under pressure, produces wearing and tearing and distortion, thereby on contact surface, produce gap owing to sliding, and causes gas leakage.This phenomenon is except outside the Pass having with physical construction, and also the factor such as the temperature in sintering process (temperature of sealing element is up to 200 DEG C of left and right) and raw material, agglomerate dust is relevant with agglomerate.Under high temperature lubricating grease softening, flow out and cause for fat fault bad for fat, and dust is sneaked into the poor sealing that causes etc. and all can be accelerated the inordinate wear of hermetic unit.
Seal device of sintering machine is generally supplied with for fat device by automatic with lubricating grease, current considerable smelter adopts traditional soap base class lubricating grease, but the high-temperature behavior of this class lubricating grease is poor, easily softening loss, contact surface produces gap, pressure reduction destroys the sealed structure that lubricating grease forms, leaks gas, and accelerated wear test, do not reach requirement lubricated and sealing, and soap base class lubricating grease metal ion, at high temperature easy coking and blocking pipeline, pumping is poor.Cause air leak rate of air curtain large so in use find bad lubricating, slideway serious wear, production efficiency is low, it is reported, the maximum air leak rate of air curtain of external sinter machine is no more than 30%, and the air leak rate of air curtain of the sinter machine of domestic current running is generally 40-60%, except will improving equipment, also need to strengthen the improvement to PERFORMANCE OF GREASES.
In recent years, along with China's metallurgy industry develop rapidly, the energy-saving and cost-reducing problem that becomes concern.The lubricating grease that sinter machine is used is not had higher requirement, and sinter machine lubricating grease should have good high-temperature behavior, and vaporization losses reduces, thinning under high temperature, do not run off and not oxidizable, plays good lubricated and sealing function; Require to there is higher supporting capacity and friction resistant performance simultaneously, meet equipment lubricated requirement under many dirt and impact load; There is good barrier propterty, prevent acid attack gas pickling metallic surface; Have good pump-conveying property and low coking tendency, not blocking pipeline, meets and concentrates for grease lubrication system; There is longer work-ing life etc.
Summary of the invention
The object of this invention is to provide lubricating grease being exclusively used in by metallurgy industry sinter machine and preparation method thereof, overcome prior art weak point, product is applicable to the lubricated of the high temperature services such as each position bearing of elastic slideway of metallurgical industry large-type sinterer and other soaking pit, annealing furnace, stoving oven.
The technical solution used in the present invention is as follows:
A kind of lubricating grease that is exclusively used in metallurgy industry sinter machine, the weight percent of the each component of its constitutive material is: stearylamine 3-6%, aniline 2-5%, quadrol 1-3%, MDI 2~3%, base oil A 50~70%, base oil B 20~30%, oxidation inhibitor A 0.5~1%, oxidation inhibitor B2~4%, rust-preventive agent A 1~2%, rust-preventive agent B2~3%, extreme pressure anti-wear additives A 2~5%, extreme pressure anti-wear additives B 2~4%, tackifier 10~20%, described tackifier are low-molecular-weight polyisobutylene.
Described base oil A is the mineral oil 150BS of high viscosity deep refining;
Described base oil B is the synthetic base oil of ester class;
Described oxidation inhibitor A is pentanoic;
Described oxidation inhibitor B is phosphoric acid fourth octyl group zinc salt;
Described rust-preventive agent A is benzotriazole;
Described rust-preventive agent B is alkenyl succinic acid;
Described extreme pressure anti-wear additives A is tritolyl phosphate;
Described extreme pressure anti-wear additives B is potassium borate;
Described preparation method, specifically comprises the following steps:
(1) press formula rate the base oil B of 60% base oil A and 40% is dropped in saponification still, and be warmed up to 60-80 DEG C;
(2) stearylamine of formula rate, aniline, quadrol are put in saponification still and stirred with the mixture of step (1), churning time is 5-10 minute;
(3) by formula rate, the base oil B of 40% base oil A and 60% is put in oil groove, and be warmed up to 70-90 DEG C;
(4) MDI of formula rate is put in oil groove, mix with the mixture of step (3), fully stir until entirely molten;
(5) mixture of step (4) is driven in saponification still, the mixture stirring with step (2) mixes, slowly heat up, require to start temperature at 60-90 DEG C, stir 30-50 minute, then the 1.5-3 hour that at the uniform velocity heats up, stops heat supply when temperature is increased to 160-250 DEG C;
(6) mixture step (5) being stirred is transferred to and is in harmonious proportion in still, in the time that temperature drops to 110-140 DEG C, adds oxidation inhibitor A and tackifier, stirs;
(7), in the time that temperature drops to 80-110 DEG C, oxidation inhibitor B, rust-preventive agent A, rust-preventive agent B, extreme pressure anti-wear additives A, extreme pressure anti-wear additives B are joined and be in harmonious proportion in still, and stir;
(8), by the mixture circulation shear of step (7) after 30-60 minute, under 20-35MPa pressure, homogeneous, degassed, discharging, obtain product.
Application note of the present invention:
Lubricating grease of the present invention is mainly applicable to the lubricated of the high temperature services such as each position bearing of elastic slideway of metallurgical industry large-type sinterer and other soaking pit, annealing furnace, stoving oven, also be applicable to bearing, gear, chain lubricated of various device under excessive temperature, heavy duty, low-speed conditions, as various rotary kilns or the tunnel kiln car bearing etc. of large-scale refractory factory, ceramics factory, electroceramics factory.Applicable temperature :-30 DEG C~220 DEG C
Beneficial effect of the present invention:
1, excellent resistance to elevated temperatures and oxidation stability: dropping point index is one of index directly perceived of its high-temperature behavior of reflection, and this product dropping point can reach more than 300 DEG C, can use under 220 DEG C of Working environments the long period; High-temperature oxidation stability is one of main use properties of lubricating grease, and lubricating grease used and have larger impact.The oxidation stability of lubricating grease is with to prepare grease thickener relevant with basic oil properties, and this product viscosifying agent, because of metal ion not, can be avoided the metal catalytic effect of base oil oxidation under high temperature, so have good high-temperature oxidation resistant stability.
2, excellent colloid stability and pumping: lubricating grease colloid stability is to weigh a tool important indicator of a lubricating grease use properties and shelf characteric quality.This product viscosifying agent is organism, has good affinity with base oil, contains aryl simultaneously, and adds a certain proportion of synthetic ester lubricant, so have excellent colloid stability; Sinter machine centralized lubrication system pumping line is very long, particularly needs in the winter time lubricated product to have good temperature pumping, even if this product, under the condition of-30 DEG C, also can meet the requirement of sinter machine centralized lubrication system.
3, excellent sealing property: not thinning under this product high temperature, do not run off, ferrous metal is kept to good adhesive capacity, under 220 DEG C of Working environments, use noncoking, can not cause slideway wearing and tearing, and water pouring loss is low, water repelling property is good, contacting with water, even mix with water after denseness reduce very littlely, can effectively get sealing function.
4, there is excellent lubricated and extreme pressure and antiwear behavior: the sintering work work low speed high temperature sliding friction of sinter machine, and with a large amount of dust, want to bear larger impact load simultaneously, the mineral oil of the high viscosity deep refining that this product is selected, under high loading, still can well form excellent oil film thickness, test shows, P bmore than reaching 1000N, P dmore than reaching 6000N.
5, the work-ing life of overlength: the high-temperature behavior of lubricating grease refers to lubricating grease bearing life at high temperature, the reflection of lubricating grease Integrated using performance, the level of the fundamental propertys such as colloid stability, mechanical stability and oxidation stability that can constitutionally reflection lubricating grease.This product is at the temperature of 160 DEG C, life-span reaches 1000 hours above (test method ASTM D 3336), there is good bearing working ability, there is longer work-ing life, be the more than 10 times of general soap base grease its work-ing life, therefore has high economic worth and use value.
Embodiment
Embodiment mono-: a kind of lubricating grease that is exclusively used in metallurgy industry sinter machine, the weight percent of the each component of its constitutive material is: stearylamine 3%, aniline 2%, quadrol 1%, MDI 2%, base oil A 50%, base oil B 20%, oxidation inhibitor A 0.5%, oxidation inhibitor B2%, rust-preventive agent A 1%, rust-preventive agent B2%, extreme pressure anti-wear additives A 2%, extreme pressure anti-wear additives B 2%, tackifier 12.5%.
Wherein, described base oil A is the mineral oil 150BS of high viscosity deep refining; Described base oil B is the synthetic base oil of ester class; Described oxidation inhibitor A is pentanoic; Described oxidation inhibitor B is phosphoric acid fourth octyl group zinc salt; Described rust-preventive agent A is benzotriazole; Rust-preventive agent B is alkenyl succinic acid; Described extreme pressure anti-wear additives A is tritolyl phosphate; Described extreme pressure anti-wear additives B is potassium borate; Described tackifier are low-molecular-weight polyisobutylene.
The preparation of greases method that is exclusively used in metallurgy industry sinter machine, specifically comprises the following steps:
(1) press formula rate the base oil B of 60% base oil A and 40% is dropped in saponification still, and be warmed up to 60-80 DEG C;
(2) stearylamine of formula rate, aniline, quadrol are put in saponification still and stirred with the mixture of step (1), churning time is 5-10 minute;
(3) by formula rate, the base oil B of 40% base oil A and 60% is put in oil groove, and be warmed up to 70-90 DEG C;
(4) MDI of formula rate is put in oil groove, mix with the mixture of step (3), fully stir until entirely molten;
(5) mixture of step (4) is driven in saponification still, the mixture stirring with step (2) mixes, slowly heat up, require to start temperature at 60-90 DEG C, stir 30-50 minute, then the 1.5-3 hour that at the uniform velocity heats up, stops heat supply when temperature is increased to 160-250 DEG C;
(6) mixture step (5) being stirred is transferred to and is in harmonious proportion in still, in the time that temperature drops to 110-140 DEG C, adds oxidation inhibitor A and tackifier, stirs;
(7), in the time that temperature drops to 80-110 DEG C, oxidation inhibitor B, rust-preventive agent A, rust-preventive agent B, extreme pressure anti-wear additives A, extreme pressure anti-wear additives B are joined and be in harmonious proportion in still, and stir;
(8), by the mixture circulation shear of step (7) after 30-60 minute, under 20-35MPa pressure, homogeneous, degassed, discharging, obtain product.
Embodiment bis-: a kind of lubricating grease that is exclusively used in metallurgy industry sinter machine, the weight percent of the each component of its constitutive material is: stearylamine 4%, aniline 3%, quadrol 1%, MDI 2.5%, base oil A 50%, base oil B 20%, oxidation inhibitor A 0.5%, oxidation inhibitor B2%, rust-preventive agent A 1%, rust-preventive agent B2%, extreme pressure anti-wear additives A 2%, extreme pressure anti-wear additives B 2%, tackifier 12.5%.
Wherein, described base oil A is the mineral oil 150BS of high viscosity deep refining; Described base oil B is the synthetic base oil of ester class; Described oxidation inhibitor A is pentanoic; Described oxidation inhibitor B is phosphoric acid fourth octyl group zinc salt; Described rust-preventive agent A is benzotriazole; Rust-preventive agent B is alkenyl succinic acid; Described extreme pressure anti-wear additives A is tritolyl phosphate; Described extreme pressure anti-wear additives B is potassium borate; Described tackifier are low-molecular-weight polyisobutylene.
The preparation of greases method that is exclusively used in metallurgy industry sinter machine, specifically comprises the following steps:
(1) press formula rate the base oil B of 60% base oil A and 40% is dropped in saponification still, and be warmed up to 60-80 DEG C;
(2) stearylamine of formula rate, aniline, quadrol are put in saponification still and stirred with the mixture of step (1), churning time is 5-10 minute;
(3) by formula rate, the base oil B of 40% base oil A and 60% is put in oil groove, and be warmed up to 70-90 DEG C;
(4) MDI of formula rate is put in oil groove, mix with the mixture of step (3), fully stir until entirely molten;
(5) mixture of step (4) is driven in saponification still, the mixture stirring with step (2) mixes, slowly heat up, require to start temperature at 60-90 DEG C, stir 30-50 minute, then the 1.5-3 hour that at the uniform velocity heats up, stops heat supply when temperature is increased to 160-250 DEG C;
(6) mixture step (5) being stirred is transferred to and is in harmonious proportion in still, in the time that temperature drops to 110-140 DEG C, adds oxidation inhibitor A and tackifier, stirs;
(7), in the time that temperature drops to 80-110 DEG C, oxidation inhibitor B, rust-preventive agent A, rust-preventive agent B, extreme pressure anti-wear additives A, extreme pressure anti-wear additives B are joined and be in harmonious proportion in still, and stir;
(8), by the mixture circulation shear of step (7) after 30-60 minute, under 20-35MPa pressure, homogeneous, degassed, discharging, obtain product.
Product Validation:
After testing, the indices of this product all reaches service requirements.

Claims (2)

1. one kind is exclusively used in the lubricating grease of metallurgy industry sinter machine, it is characterized in that: the weight percent of the each component of its constitutive material is: stearylamine 3-6%, aniline 2-5%, quadrol 1-3%, MDI 2 ~ 3%, base oil A 50 ~ 70%, base oil B 20 ~ 30%, oxidation inhibitor A 0.5 ~ 1%, oxidation inhibitor B2 ~ 4%, rust-preventive agent A 1 ~ 2%, rust-preventive agent B2 ~ 3%, extreme pressure anti-wear additives A 2 ~ 5%, extreme pressure anti-wear additives B 2 ~ 4%, tackifier 10 ~ 20%, described tackifier are low-molecular-weight polyisobutylene; Described base oil A is the mineral oil 150BS of high viscosity deep refining, described base oil B is the synthetic base oil of ester class, described oxidation inhibitor A is pentanoic, described rust-preventive agent A is benzotriazole, described rust-preventive agent B is alkenyl succinic acid, described extreme pressure anti-wear additives A is tritolyl phosphate, and described extreme pressure anti-wear additives B is potassium borate, and the weight percent sum of said components is 100%.
2. a kind of preparation of greases method that is exclusively used in metallurgy industry sinter machine as claimed in claim 1, is characterized in that: described preparation method, specifically comprises the following steps:
(1) press formula rate the base oil B of 60% base oil A and 40% is dropped in saponification still, and be warmed up to 60-80 DEG C;
(2) stearylamine of formula rate, aniline, quadrol are put in saponification still and stirred with the mixture of step (1), churning time is 5-10 minute;
(3) by formula rate, the base oil B of 40% base oil A and 60% is put in oil groove, and be warmed up to 70-90 DEG C;
(4) MDI of formula rate is put in oil groove, mix with the mixture of step (3), fully stir until entirely molten;
(5) mixture of step (4) is driven in saponification still, the mixture stirring with step (2) mixes, slowly heat up, require to start temperature at 60-90 DEG C, stir 30-50 minute, then the 1.5-3 hour that at the uniform velocity heats up, stops heat supply when temperature is increased to 160-250 DEG C;
(6) mixture step (5) being stirred is transferred to and is in harmonious proportion in still, in the time that temperature drops to 110-140 DEG C, adds oxidation inhibitor A and tackifier, stirs;
(7), in the time that temperature drops to 80-110 DEG C, oxidation inhibitor B, rust-preventive agent A, rust-preventive agent B, extreme pressure anti-wear additives A, extreme pressure anti-wear additives B are joined and be in harmonious proportion in still, and stir;
(8), by the mixture circulation shear of step (7) after 30-60 minute, under 20-35MPa pressure, homogeneous, degassed, discharging, obtain product.
CN201210214194.6A 2012-06-27 2012-06-27 Grease used specially for sintering machine in metallurgical industry and preparation method thereof Active CN102746930B (en)

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CN103497814B (en) * 2013-09-02 2015-07-01 安庆市中天石油化工有限公司 Lubricating grease specially used in high-temperature kiln car, and preparation method thereof
CN105087106A (en) * 2015-08-11 2015-11-25 新乡市恒星化工有限责任公司 Lubricating grease special for blast-furnace equipment and preparation method thereof
CN105861125A (en) * 2016-04-19 2016-08-17 天津海航石油能源科技有限公司 Anti-corrosion lubricating grease for unbonded prestressed ribs and preparation method of anti-corrosion lubricating grease
JP6841547B2 (en) * 2017-01-18 2021-03-10 出光興産株式会社 Grease composition and its manufacturing method
CN107760425A (en) * 2017-11-15 2018-03-06 郑州市欧普士科技有限公司 A kind of long-life bearing lubricating grease and preparation method thereof
CN109762629A (en) * 2018-12-19 2019-05-17 无锡飞天润滑油科技股份有限公司 A kind of sintering machine slide way packing grease and preparation method thereof
CN111057609A (en) * 2019-12-10 2020-04-24 融润化工科技有限公司 High dropping point extreme pressure drilling tool thread grease

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CN101693851A (en) * 2009-09-30 2010-04-14 中国石油化工股份有限公司 Synthetic high-temperature lubricating grease and production method thereof
CN102311850A (en) * 2011-08-04 2012-01-11 安庆市中天石油化工有限公司 Grease specially used for heavy-load open-type gear and preparation method thereof
CN102417847A (en) * 2011-10-17 2012-04-18 中国石油化工股份有限公司 Lubricating grease composition

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CN102311850A (en) * 2011-08-04 2012-01-11 安庆市中天石油化工有限公司 Grease specially used for heavy-load open-type gear and preparation method thereof
CN102417847A (en) * 2011-10-17 2012-04-18 中国石油化工股份有限公司 Lubricating grease composition

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Address after: 246521 Susong Economic Development Zone, Anhui, Anqing

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