CN113929986B - Rubber composite material, rubber high manganese alloy steel composite lining plate and preparation process thereof - Google Patents
Rubber composite material, rubber high manganese alloy steel composite lining plate and preparation process thereof Download PDFInfo
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- CN113929986B CN113929986B CN202111197054.8A CN202111197054A CN113929986B CN 113929986 B CN113929986 B CN 113929986B CN 202111197054 A CN202111197054 A CN 202111197054A CN 113929986 B CN113929986 B CN 113929986B
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 185
- 239000005060 rubber Substances 0.000 title claims abstract description 185
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 159
- 239000010959 steel Substances 0.000 title claims abstract description 159
- 229910000914 Mn alloy Inorganic materials 0.000 title claims abstract description 143
- 239000002131 composite material Substances 0.000 title claims abstract description 92
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 27
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000013543 active substance Substances 0.000 claims abstract description 13
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 12
- 239000010426 asphalt Substances 0.000 claims abstract description 12
- 229920003048 styrene butadiene rubber Polymers 0.000 claims abstract description 12
- 239000004927 clay Substances 0.000 claims abstract description 9
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 22
- 238000004073 vulcanization Methods 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 14
- 239000000853 adhesive Substances 0.000 claims description 9
- 230000001070 adhesive effect Effects 0.000 claims description 9
- 238000005303 weighing Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 6
- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical group C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 5
- 239000000292 calcium oxide Substances 0.000 claims description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000000395 magnesium oxide Substances 0.000 claims description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 5
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 5
- 239000011593 sulfur Substances 0.000 claims description 5
- 229910052717 sulfur Inorganic materials 0.000 claims description 5
- 239000003245 coal Substances 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 4
- 230000001680 brushing effect Effects 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000005238 degreasing Methods 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 238000005554 pickling Methods 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- 239000004568 cement Substances 0.000 abstract description 9
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 3
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 238000006731 degradation reaction Methods 0.000 abstract description 2
- -1 accelerator Substances 0.000 abstract 1
- 238000000227 grinding Methods 0.000 description 9
- 229910001208 Crucible steel Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000011300 coal pitch Substances 0.000 description 3
- 239000011294 coal tar pitch Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- 238000001179 sorption measurement Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/06—Copolymers with styrene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B25/042—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/14—Layered products comprising a layer of natural or synthetic rubber comprising synthetic rubber copolymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/10—Properties of the layers or laminate having particular acoustical properties
- B32B2307/102—Insulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/302—Conductive
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/56—Damping, energy absorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/718—Weight, e.g. weight per square meter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
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- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
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Abstract
The invention provides a rubber composite material, a rubber high manganese alloy steel composite lining plate and a preparation process thereof, wherein the rubber composite material comprises the following raw materials: styrene-butadiene rubber, graphite powder, talcum powder, clay, asphalt, anti-aging agent, accelerator, active agent and vulcanizing agent. The rubber high manganese alloy steel composite lining plate comprises a rubber plate, wherein the rubber plate comprises a rubber bottom plate and a rubber outer plate integrally formed on the outer side surface of the rubber bottom plate, and the outer side surface of the rubber outer plate is corrugated; the rubber plate is internally provided with a high manganese alloy steel skeleton, the high manganese alloy steel skeleton comprises a plurality of high manganese alloy steel corrugated single plates inlaid in the rubber outer plate, and the rubber plate and the high manganese alloy steel skeleton are vulcanized into an integrated structure. When the rubber composite material is used as a lining plate material to be applied to a mill, the fundamental problem of cement degradation under the condition that the temperature in a cylinder body exceeds 120 ℃ in the cement production industry is solved, and the rubber composite material also has the characteristics of heat resistance, shock absorption, wear resistance, high strength and the like.
Description
Technical Field
The invention belongs to the technical field of mills, and particularly relates to a rubber composite material, a rubber high-manganese alloy steel composite lining plate and a preparation process thereof.
Background
The ball mill is a key device for crushing materials after the materials are crushed. The grinding bodies in the ball mill are generally steel balls, and are filled into cylinders according to different diameters and certain proportions, and steel segments can also be used as the grinding bodies. The material is selected according to the granularity of the ground material, the material is filled into the cylinder body by the hollow shaft at the feeding end of the ball mill, when the ball mill cylinder body rotates, the grinding body is attached to the cylinder liner plate and taken away by the cylinder body under the action of inertia and centrifugal force, and when the ball mill cylinder body is taken to a certain height, the ground material in the cylinder body is thrown down under the action of gravity of the grinding body, and the fallen grinding body breaks up the material in the cylinder body like a projectile. The lining of the dry mill in the industries of mineral separation, building materials and the like mostly uses a steel lining plate of all-high manganese alloy, but has heavy weight and high energy consumption; the labor cost is high during installation and replacement; the noise is big when running, and the influence on the environment is big.
At present, when cement is produced by adopting a mill, when the temperature in a cylinder exceeds 120 ℃, cement solvent is degraded, and some enterprises are in strong water spraying and cooling outside the cylinder, but the efficiency is poor, water and electricity are wasted, and potential safety hazards are easily brought.
Disclosure of Invention
The invention aims to solve the technical problems and overcome the defects and shortcomings in the background art, and provides a rubber composite material, a rubber high manganese alloy steel composite lining plate and a preparation process thereof.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the rubber composite material comprises the following raw materials in parts by weight: 100 parts of styrene-butadiene rubber, 18-25 parts of graphite powder, 30-40 parts of talcum powder, 20-28 parts of clay, 9-12 parts of asphalt, 1.5-2.2 parts of anti-aging agent, 0.5-1 part of accelerator, 3-10 parts of active agent and 30-38 parts of vulcanizing agent.
Preferably, the rubber composite material comprises the following raw materials in parts by weight: 100 parts of styrene-butadiene rubber, 20 parts of graphite powder, 35 parts of talcum powder, 25 parts of clay, 10 parts of asphalt, 2 parts of anti-aging agent, 0.8 part of accelerator, 8 parts of active agent and 35 parts of vulcanizing agent.
Preferably, the styrene-butadiene rubber is styrene-butadiene rubber 1502;
the particle size of D97 of the graphite powder is 6.5-7 mu m;
the asphalt is coal asphalt, and the softening point of the coal asphalt is 75-95 ℃;
the anti-aging agent is an anti-aging agent RD;
the accelerator is accelerator D;
the active agent is one or the combination of two of calcium oxide and magnesium oxide;
the vulcanizing agent is sulfur.
The preparation method of the rubber composite material comprises the following steps: weighing the raw materials of the rubber composite material according to the formula ratio; and then putting the raw materials into a mixing mill for mixing, thinning the raw materials, feeding the raw materials into a sheet to obtain unvulcanized rubber material, and then carrying out vulcanization treatment to obtain the rubber composite material.
The invention also provides a rubber high manganese alloy steel composite lining plate which comprises a rubber plate, wherein the rubber plate comprises a rubber bottom plate and a rubber outer plate integrally formed on the outer side surface of the rubber bottom plate, and the outer side surface of the rubber outer plate is corrugated; the high manganese alloy steel skeleton is arranged in the rubber plate and comprises a plurality of high manganese alloy steel corrugated single plates inlaid in the rubber outer plate, and the rubber plate and the high manganese alloy steel skeleton are vulcanized into an integrated structure.
The rubber plate is made of the rubber composite material. The high manganese alloy steel used in the invention is mainly imported high manganese alloy steel abroad.
Preferably, the extending direction of the corrugation on the rubber outer plate is parallel to the width direction of the rubber plate, a plurality of high manganese alloy steel corrugated single plates are distributed at intervals along the length direction of the rubber plate, two long steel plates are welded and fixed on two sides of each high manganese alloy steel corrugated single plate respectively, rubber corrugated single plates are filled between every two adjacent high manganese alloy steel corrugated single plates, and the rubber outer plate comprises a plurality of rubber corrugated single plates.
Preferably, the high manganese alloy steel corrugated single plate is externally coated with a rubber layer.
Preferably, one side of the high manganese alloy steel corrugated veneer, which is close to the rubber bottom plate, is in an outwards protruding arc shape, one side of the high manganese alloy steel corrugated veneer, which is far away from the rubber bottom plate, is in a corrugated shape matched with the outer side surface of the rubber outer plate, and the wave crests and the wave troughs of the high manganese alloy steel corrugated veneer are in an arc shape.
Preferably, a plurality of screw holes are fixedly penetrated in the middle of the high manganese alloy steel skeleton along the length direction, alloy steel fastening strips are fixedly welded on two sides of the screw holes together, and the alloy steel fastening strips are fixedly welded with a plurality of high manganese alloy steel corrugated single plates;
and the rubber high manganese alloy steel composite lining plate corresponding to each screw hole is provided with a mounting hole for mounting the rubber high manganese alloy steel composite lining plate on the inner wall of the mill cylinder.
The invention also provides a preparation process of the high manganese alloy steel composite lining plate, which comprises the following steps of:
1) Weighing the raw materials of the rubber composite material according to the formula ratio; then putting the raw materials into a mixing mill for mixing, and then discharging slices to obtain unvulcanized rubber materials;
2) Preparing a high manganese alloy steel skeleton;
3) Brushing a vulcanization adhesive on the surface of the high-manganese alloy steel skeleton, drying, placing in a vulcanization mold, filling unvulcanized rubber materials between the high-manganese alloy steel corrugated veneers and on the back of the high-manganese alloy steel skeleton, and then carrying out vulcanization treatment; and trimming and quality inspection to obtain the rubber high-manganese alloy steel composite lining plate.
Preferably, the step 2) specifically includes the following steps: cutting the high-manganese alloy to obtain a plurality of high-manganese alloy corrugated steel plates to be treated, welding long steel plates to be treated on two sides of the high-manganese alloy corrugated steel plates to be treated, and obtaining a high-manganese alloy steel plate skeleton primary product after the treatment; sequentially carrying out welding slag removal, pickling rust removal, degreasing, phosphating treatment and drying treatment on the primary product of the high-manganese alloy steel plate skeleton to obtain a high-manganese alloy steel skeleton;
in the step 3), the vulcanized adhesive adopts a common hot vulcanized adhesive, and comprises a primer and a finish, wherein the primer is common 815, and the finish is common 825.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the rubber composite material is filled with talcum powder, clay, asphalt, graphite powder and other materials, wherein the graphite powder mainly plays roles of heat conduction and wear resistance, and the heat dissipation and wear resistance of the rubber composite material are effectively improved. The rubber composite material provided by the invention can resist the instantaneous temperature of 150 ℃, has good thermal conductivity and moderate hardness, and can play a certain role in buffering. When the rubber composite material is used as a lining plate material to be applied to a mill, the temperature in a cylinder (under the condition of exceeding 120 ℃) can be reduced by about 20 ℃ in a short time, the fundamental problem of cement degradation under the condition that the temperature in a cylinder exceeds 120 ℃ in the cement production industry is solved, that is, the temperature in the cylinder does not exceed 120 ℃ as long as the feeding temperature does not exceed 100 ℃, and a great difficulty of cement enterprises is solved. In addition, the rubber composite material has the characteristics of heat resistance, shock absorption, wear resistance, high strength and the like.
2. The thickness of the traditional steel lining plate of the full-high manganese alloy is thicker, and the thickness of the rubber high manganese alloy steel composite lining plate is obviously reduced, so that the internal space in a mill is increased, the capacity is increased, steel balls and grinding materials can be correspondingly increased, and the productivity is improved.
3. Compared with the traditional steel lining plate made of all-high manganese alloy, the rubber high-manganese alloy steel composite lining plate is light in weight, convenient to install, capable of effectively saving electricity and beneficial to reducing production cost.
4. The traditional steel lining board of the full-high manganese alloy has large noise after collision with the steel ball, and the rubber high manganese alloy steel composite lining board can obviously reduce noise due to the arrangement of the rubber bottom plate.
5. When the high manganese alloy steel lining plate is installed, a three-ply plate with the thickness of 3mm is additionally arranged between the lining plate and the cylinder body, and the three-ply plate mainly prevents the lining plate from leaving marks on the cylinder body due to uneven bottom when the lining plate is used for a long time, but has heat insulation side effect. The rubber high manganese alloy steel composite lining board does not need the three-ply board, so that materials can be reduced.
6. In the invention, the bonding strength of each high-manganese alloy corrugated steel plate and the rubber composite layer is high in a high-temperature environment, the structural stability is high, and the working performance is stable in the high-temperature environment. And the rubber high manganese alloy steel composite lining board can not fall off early in the service life.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a rubber high manganese alloy steel composite liner plate in example 4;
FIG. 2 is another schematic perspective view of the rubber high manganese alloy steel composite liner plate in example 4;
FIG. 3 is a schematic perspective view of an alloy steel skeleton;
FIG. 4 is a top view of an alloy steel skeleton;
FIG. 5 is a bottom view of the alloy steel skeleton;
FIG. 6 is a side view of an alloy steel skeleton;
FIG. 7 is a front view of an alloy corrugated steel veneer;
FIG. 8 is a top view of the rubber high manganese alloy steel composite liner of example 5.
Legend description:
1. a rubber plate; 11. a rubber bottom plate; 12. a rubber outer plate; 121. rubber corrugated veneer; 2. a high manganese alloy steel skeleton; 21. high manganese alloy steel corrugated veneer; 22. a long steel plate; 23. a screw hole; 24. alloy steel fastening strips; 3. and (5) mounting holes.
Detailed Description
The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown, for the purpose of illustrating the invention, but the scope of the invention is not limited to the specific embodiments shown.
Unless defined otherwise, all technical and scientific terms used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the scope of the present invention.
Unless otherwise specifically indicated, the various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or may be prepared by existing methods.
In examples 1 to 3 below, the properties of the graphite powder used are shown in Table 1.
TABLE 1 graphite powder Performance parameters
| Inspection item | Detection standard | Detection result |
| Appearance of | GB/T20020-20134.1 | Grey black powder |
| Fixed carbon/(%) | GB/T3521-2008 | 79.76 |
| Moisture/(%) | GB/T3521-2008 | 2.5 |
| D97/(μm) | / | 6.89 |
| Iodine value/(g/kg) | GB/T3780.1-2015 | 63 |
| DBP absorption value/(10) -5 m 3 /kg) | GB/T3780.2-2017 | 81 |
| Nitrogen adsorption specific surface area/(10) 3 m 2 /kg) | GB/T10722-2014 | 73 |
| Ash% | GB/T3780.10-2017 | 17.81 |
| 45 μm screen residue/% | GB3778-2011 | 0 |
Example 1:
the rubber composite material comprises the following raw materials in parts by weight: 1502100 parts of styrene-butadiene rubber, 20 parts of graphite powder, 35 parts of talcum powder, 25 parts of clay, 10 parts of coal tar pitch, 2 parts of anti-aging agent RD, 0.8 part of accelerator D, 8 parts of active agent and 35 parts of sulfur.
The softening point of the coal pitch is 75-95 ℃, the active agent is calcium oxide and magnesium oxide according to the mass ratio of 1: 1.
The preparation method comprises the following steps:
1) Weighing the raw materials of the rubber composite material according to the formula ratio; then the raw materials are put into a mixing mill for mixing, and the raw materials are thinned and passed through a lower sheet to obtain unvulcanized rubber material, wherein the Mooney viscosity ML (1+4) is 56 at 100 ℃;
sampling and detecting a vulcanization curve: the vulcanization condition is 150 ℃; t10 is 6.6min and T90 is 26.5min; TS1 is 4.3min;
2) And vulcanizing the unvulcanized rubber material to obtain the rubber composite material.
The rubber composite material prepared in example 1 was tested for flexural strength, impact strength, vicat Ding Naire temperature, shore D hardness, and the test results are shown in table 2.
Table 2 data for the performance test of the rubber composite in example 1
| Flexural Strength | Impact Strength | Vicat Ding Naire temperature | Shore D hardness | |
| Rubber composite material | 87MPa | 2.3×10 5 J/m 2 | 110℃ | 86 degree |
Example 2:
the rubber composite material comprises the following raw materials in parts by weight: 1502100 parts of styrene-butadiene rubber, 18 parts of graphite powder, 40 parts of talcum powder, 26 parts of clay, 9 parts of coal tar pitch, 2 parts of anti-aging agent RD, 1 part of accelerator D, 10 parts of active agent and 32 parts of sulfur.
The softening point of the coal pitch is 75-95 ℃, the active agent is calcium oxide and magnesium oxide according to the mass ratio of 1: 1.
The preparation method comprises the following steps:
1) Weighing the raw materials of the rubber composite material according to the formula ratio; then the raw materials are put into a mixing mill for mixing, and the raw materials are thinned and passed through a lower sheet to obtain unvulcanized rubber material, wherein the Mooney viscosity ML (1+4) is 56 at 100 ℃;
sampling and detecting a vulcanization curve: the vulcanization condition is 150 ℃; t10 is 5.5min and T90 is 26.3min; TS1 is 4.2min;
2) And vulcanizing the unvulcanized rubber material to obtain the rubber composite material.
The flexural strength, impact strength, vicat Ding Naire temperature and shore D hardness of the rubber composite material prepared in example 2 were measured, and the test results are shown in table 3.
TABLE 3 data for the performance measurements of the rubber composites in example 2
| Flexural Strength | Impact Strength | Vicat Ding Naire temperature | Shore D hardness | |
| Rubber composite material | 85MPa | 2.2×10 5 J/m 2 | 103℃ | 82 degrees |
Example 3:
the rubber composite material comprises the following raw materials in parts by weight: 1502100 parts of styrene-butadiene rubber, 25 parts of graphite powder, 30 parts of talcum powder, 28 parts of clay, 11 parts of coal tar pitch, 2.2 parts of anti-aging agent RD, 0.5 part of accelerator D, 6 parts of active agent and 38 parts of sulfur.
The softening point of the coal pitch is 75-95 ℃, the active agent is calcium oxide and magnesium oxide according to the mass ratio of 1: 1.
The preparation method comprises the following steps:
1) Weighing the raw materials of the rubber composite material according to the formula ratio; then putting the raw materials into a mixing mill for mixing, and thinning the raw materials to obtain unvulcanized rubber materials;
2) And vulcanizing the unvulcanized rubber material to obtain the rubber composite material.
Example 4:
1-7, a rubber high manganese alloy steel composite lining plate comprises a rubber plate 1, wherein the rubber plate 1 comprises a rubber bottom plate 11 and a rubber outer plate 12 integrally formed on the outer side surface of the rubber bottom plate 11, and the outer side surface of the rubber outer plate 12 is corrugated; the rubber plate 1 is internally provided with a high manganese alloy steel skeleton 2, the high manganese alloy steel skeleton 2 comprises a plurality of high manganese alloy steel corrugated single plates 21 inlaid in the rubber outer plate 12, and the rubber plate 1 and the high manganese alloy steel skeleton 2 are vulcanized into an integrated structure. The rubber sheet 1 is made of the rubber composite material in example 1.
The invention adopts rubber to combine with alloy steel skeleton, which not only ensures good heat dissipation performance of the lining board, but also has the characteristics of heat resistance, shock absorption, wear resistance, high strength and the like. Meanwhile, compared with the traditional steel lining board made of all-high manganese alloy, the rubber alloy steel composite lining board is light in weight, convenient to install, capable of effectively saving electricity and beneficial to reducing production cost. Meanwhile, due to the rubber bottom plate 11, noise can be obviously reduced, and marks can not be left on the barrel body when the grinding machine is installed in the barrel body of the grinding machine.
The use amount of alloy steel can be saved due to the adoption of the plurality of high manganese alloy steel corrugated single plates 21 which are distributed at intervals, and the high manganese alloy steel corrugated single plates 21 are positioned between rubber, so that certain buffer protection can be formed after the high manganese alloy steel corrugated single plates 21 are impacted in the ball milling process, and the service life of the high manganese alloy steel corrugated single plates 21 is long. The rubber plate 1 and the high manganese alloy steel skeleton 2 are vulcanized into an integrated structure, so that the rubber plate has high adhesive strength and high structural stability, the working performance is stable under a high-temperature environment, and the rubber alloy steel composite lining plate can not fall off early in the service life.
In this embodiment, the extending direction of the corrugations on the rubber outer plate 12 is parallel to the width direction of the rubber plate 1, a plurality of high manganese alloy corrugated steel single plates 21 are arranged at intervals along the length direction of the rubber plate 1, two long steel plates 22 are welded and fixed on two sides of each of the plurality of high manganese alloy corrugated steel single plates 21, rubber corrugated single plates 121 are filled between two adjacent high manganese alloy corrugated steel single plates 21, and the rubber outer plate 12 comprises a plurality of rubber corrugated single plates 121. The high manganese alloy steel skeleton 2 with the structure has the advantages of few steel materials, stable overall structure and even stress, and can effectively prolong the service life of the rubber alloy steel composite lining plate.
In this embodiment, the side of the high manganese alloy corrugated steel veneer 21 close to the rubber bottom plate 11 is in an arc shape protruding outwards, the side of the high manganese alloy corrugated steel veneer away from the rubber bottom plate 11 is in a corrugated shape matched with the outer side surface of the rubber outer plate 12, and the peaks and the troughs of the high manganese alloy corrugated steel veneer 21 are in an arc shape. The high manganese alloy steel corrugated veneer 21 with the structure can strengthen the overall stability of the high manganese alloy steel skeleton 2 and the rubber alloy steel composite lining plate, and has good use effect.
In the embodiment, a plurality of screw holes 23 are fixedly penetrated in the middle of the high manganese alloy steel skeleton 2 along the length direction, alloy steel fastening strips 24 are fixedly welded on two sides of the screw holes 23 together, and the alloy steel fastening strips 24 are fixedly welded with a plurality of high manganese alloy steel corrugated single plates 21; the rubber high manganese alloy steel composite lining plate corresponding to each screw hole 23 is provided with a mounting hole 3 for mounting the rubber high manganese alloy steel composite lining plate on the inner wall of the mill cylinder. The number of the mounting holes 3 (screw holes 23) is generally two, and the mounting holes are arranged along the length direction of the rubber sheet 1 and are symmetrical to each other.
In the embodiment, the thickness of the high manganese alloy corrugated steel sheet 21 is generally 4.5-6mm, and the interval between two adjacent high manganese alloy corrugated steel sheets is 13-18mm; the total height of the rubber high manganese alloy steel composite lining board is 35-55mm.
The preparation process of the high manganese alloy steel composite lining plate comprises the following steps:
1) Weighing the raw materials of the rubber composite material in the example 1 according to the formula ratio; then putting the raw materials into a mixing mill for mixing, and thinning the raw materials to obtain unvulcanized rubber materials;
2) Cutting the high-manganese alloy to obtain a plurality of high-manganese alloy corrugated steel plates to be treated, welding long steel plates to be treated on two sides of the high-manganese alloy corrugated steel plates to be treated, and obtaining a high-manganese alloy steel plate skeleton primary product after the treatment; sequentially carrying out welding slag removal, pickling rust removal, degreasing and phosphating treatment and drying treatment on the primary product of the high-manganese alloy steel plate skeleton to obtain a high-manganese alloy steel skeleton 2;
3) Brushing a vulcanization adhesive on the surface of the high manganese alloy steel skeleton 2, wherein the vulcanization adhesive comprises a primer and a finish paint, the primer is common 815, and the finish paint is common 825; placing the dried steel sheets in a vulcanization mold, filling unvulcanized rubber materials between the high-manganese alloy steel corrugated veneers 21 and the back surface of the high-manganese alloy steel skeleton 2, and then carrying out vulcanization treatment; and trimming and quality inspection to obtain the rubber high-manganese alloy steel composite lining plate.
The rubber high manganese alloy steel composite lining plate prepared by the method can still keep higher adhesive strength and impact resistance after being aged in hot air at 150 ℃ for 168 hours.
Example 5:
as shown in fig. 3 to 8, a rubber high manganese alloy steel composite liner plate is different from example 4 in that a high manganese alloy steel corrugated veneer 21 is externally coated with a rubber layer. The rubber layer is generally thin and integrally formed with the corrugated rubber veneer 121, so that the corrugated high-manganese alloy steel veneer 21 can be initially protected.
Cost comparison of original cast steel liner plate and rubber high manganese alloy steel composite liner plate in example 4 of the invention:
1) The size of the original cast steel lining plate is as follows: 30.8cm by 50cm by 5.4cm (with corrugations), a mass of 50.4kg, a mass of 3.2m by 13m of lining board in a cement mill specification model of 32 blocks by 26 turns = 832 blocks by 50.4 kg/block = total weight of 42 tons.
2) Rubber high manganese alloy steel composite lining plate with specific size (example 4): 30.8cm by 49.5cm by 3.9cm.
The high manganese alloy steel corrugated single plates 21 (corrugated steel plates) are 24, the space between the plates is 16mm, the thickness of each high manganese alloy steel corrugated single plate 21 is 5mm, two ends of each high manganese alloy steel corrugated single plate 21 are integrally connected by steel plates 22 with the length of 485mm and the thickness of 4mm, the size of each alloy steel skeleton 2 is 306mm, the size of each alloy steel skeleton is 480 mm, the size of each alloy steel skeleton is 25mm, and the depth of each screw hole 23 is 39mm. The back screw hole 23 protrudes 14mm, the alloy steel fastening strips 24 on two sides of the screw hole 23 are common steel plates, and the size of the alloy steel fastening strips 24 is 4mm thick by 10mm wide by 485mm. The height from the top to the bottom of the corrugation is 19mm, the lowest point to the bottom of the corrugation is 6mm, the bottom is 296mm long, and the thickness of the steel plate is 5mm.
The mass (containing corrugation) of the rubber high manganese alloy steel composite lining plate is 9.53kg, and the weight of the rubber high manganese alloy steel composite lining plate is reduced by 34.07 tons, wherein 32 blocks of the lining plate are required to be in a size of 3.2m and 13m in each circle of the cement mill, and each circle of the lining plate is required to be in a size of 26 circles = 832 circles, and the weight of the rubber high manganese alloy steel composite lining plate is 9.53 kg/circle = total weight of 7.93 tons.
3) Calculated as 1 amp current savings per 1 ton weight reduction (voltage 380 v): the power is saved by 15 degrees per hour, and the power is saved by 10.8 ten thousand degrees per mill in 300 days all year round.
4) The labor cost is reduced, more than 2 people and auxiliary equipment are required to be installed in the cylinder body per 50.4kg, and 9.53kg1 people can work independently per block without any auxiliary equipment.
5) The collision noise between the steel ball and the high manganese alloy is larger before, and the noise is obviously reduced after the rubber base is used.
6) The total thickness of the original lining plate is 54mm, the thickness of the existing rubber high-manganese alloy steel composite lining plate is 39mm, the internal space is increased by 15mm, the capacity is increased, and the steel balls and grinding materials can be correspondingly increased, so that the productivity is improved.
7) A three-ply board with the thickness of 3mm is additionally arranged between the lining board and the cylinder body when the original lining board is installed, and is mainly used for preventing the lining board from leaving marks on the cylinder body due to uneven bottom when the lining board is used for a long time, but has heat insulation side effect. The rubber high manganese alloy steel composite lining board does not need the three-ply board.
8) The production cost of each rubber high manganese alloy steel composite lining plate can be controlled within seventy yuan, and the price of the traditional cast steel lining plate is more than four hundred. The production cost of the rubber high manganese alloy steel composite lining plate is obviously reduced.
Claims (9)
1. The composite lining plate is characterized by comprising a rubber plate (1), wherein the rubber plate (1) comprises a rubber bottom plate (11) and a rubber outer plate (12) integrally formed on the outer side surface of the rubber bottom plate (11), and the outer side surface of the rubber outer plate (12) is corrugated; the high-manganese alloy steel skeleton (2) is arranged in the rubber plate (1), the high-manganese alloy steel skeleton (2) comprises a plurality of high-manganese alloy steel corrugated single plates (21) inlaid in the rubber outer plate (12), and the rubber plate (1) and the high-manganese alloy steel skeleton (2) are vulcanized into an integrated structure;
the rubber plate (1) is made of a rubber composite material, and the rubber composite material comprises the following raw materials in parts by weight: 100 parts of styrene-butadiene rubber, 18-25 parts of graphite powder, 30-40 parts of talcum powder, 20-28 parts of clay, 9-12 parts of asphalt, 1.5-2.2 parts of anti-aging agent, 0.5-1 part of accelerator, 3-10 parts of active agent and 30-38 parts of vulcanizing agent.
2. The rubber high manganese alloy steel composite lining plate according to claim 1, which is characterized by comprising the following raw materials in parts by weight: 100 parts of styrene-butadiene rubber, 20 parts of graphite powder, 35 parts of talcum powder, 25 parts of clay, 10 parts of asphalt, 2 parts of anti-aging agent, 0.8 part of accelerator, 8 parts of active agent and 35 parts of vulcanizing agent.
3. The rubber high manganese alloy steel composite liner according to claim 1 or 2, wherein the styrene-butadiene rubber is styrene-butadiene rubber 1502; the particle size of D97 of the graphite powder is 6.5-7 mu m;
the asphalt is coal asphalt, and the softening point of the coal asphalt is 75-95 ℃;
the anti-aging agent is an anti-aging agent RD;
the accelerator is accelerator D;
the active agent is one or the combination of two of calcium oxide and magnesium oxide;
the vulcanizing agent is sulfur.
4. The rubber high-manganese alloy steel composite lining plate according to claim 1, wherein the extending direction of the corrugation on the rubber outer plate (12) is parallel to the width direction of the rubber plate (1), a plurality of high-manganese alloy steel corrugated single plates (21) are distributed at intervals along the length direction of the rubber plate (1), two long steel plates (22) are welded and fixed on two sides of each high-manganese alloy steel corrugated single plate (21), rubber corrugated single plates (121) are filled between every two adjacent high-manganese alloy steel corrugated single plates (21), and the rubber outer plate (12) comprises a plurality of rubber corrugated single plates (121).
5. The rubber high manganese alloy steel composite lining board according to claim 4, wherein a rubber layer is coated outside the high manganese alloy steel corrugated single board (21).
6. The rubber high manganese alloy steel composite lining plate according to claim 4 or 5, wherein one side of the high manganese alloy steel corrugated single plate (21) close to the rubber bottom plate (11) is in an outwards protruding arc shape, one side of the high manganese alloy steel corrugated single plate (21) far away from the rubber bottom plate (11) is in a corrugated shape matched with the outer side face of the rubber outer plate (12), and peaks and troughs of the high manganese alloy steel corrugated single plate (21) are in an arc shape.
7. The rubber high manganese alloy steel composite lining plate according to claim 4 or 5, wherein a plurality of screw holes (23) are fixedly penetrated in the middle of the high manganese alloy steel skeleton (2) along the length direction, alloy steel fastening strips (24) are fixedly welded on two sides of the screw holes (23) together, and the alloy steel fastening strips (24) are fixedly welded with a plurality of high manganese alloy steel corrugated single plates (21);
and the rubber high manganese alloy steel composite lining plate corresponding to each screw hole (23) is provided with a mounting hole (3) for mounting the rubber high manganese alloy steel composite lining plate on the inner wall of the mill cylinder.
8. A process for preparing the rubber high manganese alloy steel composite lining plate as claimed in claim 1 or 4, which comprises the following steps:
1) Weighing the raw materials of the rubber composite material according to the formula ratio; then putting the raw materials into a mixing mill for mixing, and thinning the raw materials to obtain unvulcanized rubber materials;
2) Preparing a high manganese alloy steel skeleton (2);
3) Brushing a vulcanization adhesive on the surface of the high-manganese alloy steel skeleton (2), drying, placing in a vulcanization mold, filling unvulcanized rubber materials between the high-manganese alloy steel corrugated veneers (21) and the back of the high-manganese alloy steel skeleton (2), and then carrying out vulcanization treatment; and trimming and quality inspection to obtain the rubber high-manganese alloy steel composite lining plate.
9. The preparation process according to claim 8, wherein the step 2) specifically comprises the following steps: cutting the high-manganese alloy to obtain a plurality of high-manganese alloy corrugated steel plates to be treated, welding long steel plates to be treated on two sides of the high-manganese alloy corrugated steel plates to be treated, and obtaining a high-manganese alloy steel plate skeleton primary product after the treatment; sequentially carrying out welding slag removal, pickling rust removal, degreasing and phosphating treatment and drying treatment on the primary product of the high-manganese alloy steel plate skeleton to obtain a high-manganese alloy steel skeleton (2);
in the step 3), the vulcanized adhesive comprises a primer and a finish, wherein the primer is purview 815, and the finish is purview 825.
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