Low carbon emission ore molding material and its manufacturing method, and equipment containing low carbon emission ore molding
The low-carbon emission ore molding material, using silicates and aggregates, addresses high carbon emissions in metal casting by casting at room temperature, achieving energy savings and superior mechanical properties.
Patent Information
- Application Number
- JP2023140249
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2023-04-26
- Filing Date
- 2023-08-30
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2043-08-30
AI Technical Summary
Traditional metal casting methods result in high carbon emissions due to energy-intensive heating processes and production steps, contradicting environmental protection trends.
A low-carbon emission ore molding material composed of a binder, first aggregate with a particle size of 15 mm or less, and additives, which can be mixed and cast at room temperature without heating, using silicates, aluminates, and iron aluminates as binders, and aggregates like gabbro and granite.
Significantly reduces carbon emissions by eliminating the need for heating, achieving energy savings and producing moldings with excellent mechanical properties and thermal insulation.
Smart Images

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Abstract
Description
[Technical Field]
[0001] The present invention relates to low carbon emission ore molding materials and methods for their manufacture and equipment containing low carbon emission ore moldings. [Background technology]
[0002] Generally, casting techniques for industrial parts mainly involve heating metals, but in today's environment-friendly world, this manufacturing method produces a large amount of carbon dioxide and results in a large carbon footprint for the product.
[0003] Furthermore, traditional metal casting methods require molten metal to be poured into a mold and cooled to solidify before forming the casting, but those skilled in the art will recognize that heating metal to a molten state requires the consumption of a large amount of energy, resulting in increased carbon emissions.
[0004] Furthermore, the production of metal materials, such as smelting, requires a large amount of carbon emissions, and each step in the production process of casting products generates a large amount of carbon emissions, which is very inconsistent with the current trend of environmental protection. Summary of the Invention [Problem to be solved by the invention]
[0005] Therefore, there is a need for low carbon emission ore molding materials and methods for their manufacture that address the known problems discussed above. [Means for solving the problem]
[0006] In accordance with the above-mentioned objectives, the present invention provides a low-carbon emission ore molding material comprising a binder, a first aggregate, and an additive, wherein the binder comprises one or more of silicate, aluminate, or iron aluminate, and the first aggregate has a first particle size of 15 mm or less.
[0007] Preferably, in one embodiment, the first particle size of the first aggregate is 3 mm to 5 mm.
[0008] Preferably, in one embodiment, the first aggregate is an air-dried hard stone material, which is air-dried, dust-free, and angular.
[0009] Preferably, in one embodiment, the first aggregate is one or more of gabbro, granite, basalt, andesite, conglomerate, sandstone, shale, diabase, pyroxenite, and quartz.
[0010] Preferably, in one embodiment, the composition further comprises a second aggregate, and the second aggregate has a second particle size of less than 3 mm.
[0011] Preferably, in one embodiment, the second aggregate is an air-dried, dust-free, angular, sandy material.
[0012] Preferably, in one embodiment, the silicate is one or more of tricalcium silicate and dicalcium silicate, the aluminate is tricalcium aluminate, and the iron aluminate is tetracalcium iron aluminate.
[0013] Preferably, the additives include cement modifiers and shrinkage reducing agents for concrete.
[0014] Preferably, in one embodiment, the thermal conductivity of the low carbon emission ore molding material is 2 to 7 W·m -1 K -1 and the specific heat capacity is 0.7 to 1.5 kJ kg -1 K -1 and the linear thermal expansion coefficient is 5 to 15 × 10 -6 / K, compressive strength greater than 125 MPa, flexural strength greater than 15 MPa, Young's modulus greater than 40,000 MPa, and density 2–3 g cm -3 is.
[0015] In accordance with the above-mentioned objectives, the present invention further provides a method for manufacturing a low-carbon-emission ore molding material, the method including: crushing raw ore to form a plurality of crushed raw ore; sorting the plurality of crushed raw ore based on a first particle size to obtain a first aggregate; and mixing the first aggregate, a binder, an additive, and water to form a low-carbon-emission ore molding material. The binder includes tricalcium silicate, dicalcium silicate, tricalcium aluminate, and tetracalcium aluminoferrite. The first particle size of the first aggregate is 15 mm or less, and the low-carbon-emission ore molding material can be cast at room temperature, filled into a mold under gravity flow, and then solidified to form a low-carbon-emission ore molding.
[0016] Based on the above object, the present invention further provides a low-carbon emission ore molding system, including a low-carbon emission ore molding and a working machine. The low-carbon emission ore molding is made of the low-carbon emission ore molding material of any of the above-described embodiments. The working machine is connected to the low-carbon emission ore molding. [Effects of the Invention]
[0017] The present invention provides a low-carbon ore molding material and a manufacturing method thereof. Processing ores produces significantly less carbon than producing metal materials, making it economical and environmentally friendly. Furthermore, the low-carbon ore molding material of the present invention does not require heating to a molten state during the molding process, thereby enabling greater energy savings and effectively reducing the carbon emissions of the final product. [Brief explanation of the drawings]
[0018] [Figure 1] FIG. 1 is a first schematic diagram of a low-carbon emission ore molding material according to an embodiment of the present invention. [Figure 2] FIG. 2 is a second schematic diagram of a low-carbon emission ore molding material according to an embodiment of the present invention. [Figure 3] FIG. 3 is a comparison diagram of the material properties of the low-carbon emission ore molding material according to the embodiment of the present invention and other materials. [Figure 4]FIG. 4 is a schematic diagram of an apparatus including low-carbon emission ore moldings according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION
[0019] In order to help the examiner understand the technical features, contents and advantages of the present invention, as well as the effects that can be achieved thereby, the present invention will be described in detail below in the form of an embodiment with reference to the drawings. However, the drawings used therein are for the purpose of schematic and auxiliary explanation only, and may not represent the true proportion and accurate layout of the present invention after it is put into practice. Therefore, the proportion and layout relationship of the attached drawings should not be used to interpret or limit the scope of rights in the actual implementation of the present invention, as explained here in advance.
[0020] Hereinafter, embodiments of the present invention will be described with reference to the drawings. To facilitate understanding, the same elements in the following embodiments will be denoted by the same reference numerals.
[0021] 1, the low-carbon emission ore molding material of the present invention includes a binder 11, a first aggregate 12, and an additive 14. After mixing and stirring the binder 11, the first aggregate 12, and the additive 14, the low-carbon emission ore molding material of the present invention can be poured into a mold without heating and allowed to solidify, thereby forming a molding, which can be used particularly for moldings such as bases, beds, cross beams, columns, axle heads, fuselages, and tables of machine tools or other equipment.
[0022] Furthermore, the binder 11 can include one or more of a silicate, an aluminate, or a ferroaluminate. In some embodiments, the silicate can be one or more of tricalcium silicate, dicalcium silicate, the aluminate can be tricalcium aluminate, and the ferroaluminate can be tetracalcium aluminate, but is not limited to these.
[0023] In a preferred embodiment, the binder 11 may include silicates, aluminates, and iron aluminates, where the silicates may be tricalcium silicate and dicalcium silicate, the aluminates may be tricalcium aluminate, and the iron aluminates may be tetracalcium aluminate.
[0024] Furthermore, the first particle size of the first aggregate 12 is 15 mm or less, and in one embodiment, to further strengthen the structure, the low-carbon emission ore molding material of the present invention can further include a second aggregate 13, and the second particle size of the second aggregate 13 is smaller than the first particle size of the first aggregate 12. In other words, because the particle sizes of the first aggregate 12 and the second aggregate 13 in the low-carbon emission ore molding material of the present invention are both small, the different particle sizes of the constituent materials of the low-carbon emission ore molding material of the present invention can form close-packed at an optimal ratio, and the moldings formed later have excellent physical and mechanical properties.
[0025] In one embodiment, the first particle size of the first aggregates 12 is 5 mm to 12 mm, and may be, for example, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, or 12 mm, or any particle size within these ranges, but is not limited to these. In one embodiment, the particle size of the first aggregates 12 is preferably 5 mm to 10 mm.
[0026] Furthermore, in another embodiment, the first aggregate 12 is an air-dried hard stone material, and the first aggregate 12 is one or more of gabbro, granite, basalt, andesite, conglomerate, sandstone, shale, diabase, pyroxene, and quartz. In other words, the first aggregate 12 can be made of one or more types of hard stone material.
[0027] In one embodiment, the first aggregate 12 may be naturally dried or air-dried in other ways. In another embodiment, the first aggregate 12 is a dust-free, angular, hard stone. That is, in the present invention, the first aggregate 12 can be obtained by simply passing the ore raw material through a process including drying, crushing, dust removal, washing, and particle size sorting (the order of these processes can be adjusted according to actual needs, but is not limited thereto). The shape of the first aggregate 12 is not limited, so the process of processing the aggregate shape can be omitted.
[0028] In one embodiment, the second particle size of the second aggregate 13 is less than 3 mm, and may be, for example, 1 mm, 2 mm, 3 mm, or any particle size between 0 mm and 3 mm. Preferably, the second aggregate 13 may be an air-dried, dust-free, angular sandy material. Furthermore, in one embodiment, the second aggregate 13 may be natural sand or artificial sand whose main material is silica.
[0029] In other embodiments, the second aggregate 13 may include other materials, for example, the second aggregate 13 may include one or more of slag, sea sand, and coral gravel. That is, one or more of slag, sea sand, and coral gravel may replace part or all of the silica-based sandy material.
[0030] In one embodiment, the additive 14 may include one or more of a cement modifier and a concrete shrinkage reducing agent. For example, the cement modifier may be a high-performance water reducing agent, and the concrete shrinkage reducing agent may be a magnesium oxide expanding agent, a high-performance concrete expanding agent, etc.
[0031] In one embodiment, the content of the first aggregate 12 and the second aggregate 13 in the low-carbon emission ore molded material is 0 to 80% by weight. Preferably, the low-carbon emission ore molded material of the present invention may be, converted into weight percentage, 35 to 45% by weight of the binder 11, 35 to 45% by weight of the first aggregate 12 and the second aggregate 13, 5 to 12% by weight of water, and 2 to 8% by weight of the additive. Furthermore, in a preferred embodiment, the content of the first aggregate 12 and the second aggregate 13 may be approximately 50% by weight.
[0032] The present invention provides milling the ore feedstock to form a plurality of milled ore feedstocks; sorting the plurality of pulverized raw ore materials based on a first particle size to obtain a first aggregate; De-dusting and purifying the first aggregate 12; providing a second aggregate 13; De-dusting and purifying the second aggregate 13; and mixing the first aggregate 12, the second aggregate 13, the binder 11, the additive 14 and water to form the low carbon emission ore molded material.
[0033] The low-carbon ore molding material is then injected into a mold to form a molded product. Furthermore, because the low-carbon ore molding material of the present invention does not contain a resin material such as an epoxy resin, it may have excellent fluidity, at least higher than molding materials containing a resin material. The low-carbon ore molding material of the present invention has excellent fluidity, sufficient to fill every corner of a mold before solidifying. That is, the low-carbon ore molding material of the present invention can be cast at room temperature (e.g., −5°C to 50°C, preferably 15°C to 35°C, more preferably 20°C to 30°C), filled into a mold under gravity flow, and then solidified to form a low-carbon ore molding. Therefore, the material can be smoothly and reliably filled into a mold without the need for a vibrating device or other external force means. It should also be noted that the low-carbon ore molding material of the present invention can also be cast at extremely low room temperatures below 0°C.
[0034] In another embodiment, in the production of the low carbon emission ore molding material of the present invention, the second aggregate 13 may not be used, and only the first aggregate 12, which is mainly made of ore, may be used as the main aggregate of the molding.
[0035] In this embodiment, the binder may include tricalcium silicate, dicalcium silicate, tricalcium aluminate, tetracalcium aluminoferrite, silica fume (quartz powder), and other materials that may enhance strength and durability. In a preferred embodiment, the tricalcium silicate, dicalcium silicate, tricalcium aluminate, and tetracalcium aluminoferrite comprise approximately 50% by weight of the binder.
[0036] In one embodiment, as shown in FIG. 2, other materials capable of increasing strength and durability may be reinforcing fibers 15, such as steel fibers, HPP fibers, and plastic fibers (polyethylene, polypropylene). Their lengths may be 3 mm to 10 mm, preferably 4 to 6 mm. In one embodiment, the content of reinforcing fibers 15 in the binder is less than 1 wt %. Furthermore, since the low-carbon emission ore molding material of the present invention has low thermal conductivity, even if plastic fibers or other reinforcing fibers 15 that are weak in high temperature resistance are added, the properties of the reinforcing fibers 15 are unlikely to be affected by high temperatures. Furthermore, in another embodiment, other materials capable of increasing strength and durability, such as reinforcing fibers 15, may be omitted, and a binder 11 containing only mineral components may be used, for example.
[0037] In addition, in a preferred embodiment, tricalcium silicate, dicalcium silicate, tricalcium aluminate, tetracalcium aluminate ferroferrate, and silica fume (quartz powder) are all nano-sized powders, so that a dense structure is formed.
[0038] Furthermore, during the formation process, silica fume undergoes a phase change due to the action of surface tension, resulting in an amorphous phase and a smooth surface. Some silica fume is an aggregate of multiple spherical particles adhering together. Silica fume is a material with a very high surface area and high activity. Silica fume has a fineness of less than 1000 nanometers, an average particle size of 100-300 nanometers, and a particle size of 20-28 nanometers. 2 / g. Its fineness and specific surface area are about 80 to 100 times that of cement and about 50 to 70 times that of fly ash, making it very suitable for adhering other substrates.
[0039] In a preferred embodiment, the silica fume is mostly silica powder, with a particle size of 7 to 40 nanometers, such as 10 to 20 nanometers, which is advantageous for forming a dense structure. In other embodiments, the silica powder may have other particle sizes less than 300 nanometers. In a preferred embodiment, the silica fume may be composed of one or more of the following by weight percentage: 75 to 98% silica, 1.0±0.2% alumina, 0.9±0.3% iron trioxide, 0.7±0.1% magnesium oxide, 0.3±0.1% calcium oxide, and 1.3±0.2% Na2O. The bulk density of the silica fume is approximately 320 to 700 kg / m3. 3 is.
[0040] In one embodiment, when silica fume reacts with silicate, a hydration reaction occurs to produce hydrated calcium silicate and calcium hydroxide. The hydrated calcium silicate may have the effect of binding other substances. The silica fume, calcium hydroxide, and water can react to produce more calcium silicate gel polymer, and the calcium hydroxide content decreases, which can be shown by the following chemical reaction:
[0041] Calcium hydroxide + silica fume + water → calcium silicate hydrate Ca(OH)2 + SiO2 + H2O → CSH
[0042] The calcium silicate gel polymer helps increase matrix adhesion and reduce permeability within the casting, and the reaction reduces calcium hydroxide, which can also improve the durability of the overall structure.
[0043] In summary, silica fume particles are so small that they can be used as a filler and gel material. Silica fume can fill the gaps between particles of various substrates, especially between aggregates, and silica fume can also bond with calcium hydroxide, making the structure of the moldings denser, more robust, and less permeable.
[0044] In one embodiment, the components of the binder 11 further include calcium oxide. The particle size of the finely divided calcium oxide in the calcium oxide may be 0.7 to 100 microns, preferably 20 to 80 microns. The finely divided calcium oxide accounts for 90 to 99% by weight of the calcium oxide.
[0045] In one embodiment, the binder 11 includes cement, silica, and calcium oxide. The cement includes ordinary cement and ultrafine cement. The particle size of the ultrafine cement is 2 to 20 microns, and the weight percentage of the ordinary cement to the ultrafine cement is 3:1 to 5:1.
[0046] In one embodiment, the silica may have two forms, namely fumed silica and precipitated silica, and the weight percentage ratio of both may be 1:1 to 1:50.
[0047] In one embodiment, the cement may include one or more of blast furnace slag, fly ash, silicon powder, pozzolan, calcium carbonate, silica, aluminum oxide (e.g., aluminum oxide), iron oxide (e.g., ferric oxide), and gypsum. Furthermore, the low-carbon emission ore molding material of the present invention has excellent bleeding resistance and water absorption properties, with the water absorption properties being determined by factors such as the aggregate blend ratio, water-to-binder ratio, and material ingredients. The low-carbon emission ore molding material of the present invention has a very low water absorption rate of less than about 0.1%. This is because the finely divided aggregate and powder materials described above make the molding's microstructure more compact. Furthermore, the low-carbon emission ore molding material of the present invention typically contains a high-performance water reducer and other additives to improve fluidity and operating performance, which helps reduce the water absorption of the final molding. Molded products made from the low-carbon emission ore molding material of the present invention also have excellent bleeding resistance and can maintain high bleeding resistance under water pressure.
[0048] Furthermore, a molding made of the low-carbon emission ore molding material of the present invention, which contains or consists of the above-mentioned material, has a thermal conductivity of 1 to 8 W·m -1 K -1 and the specific heat capacity is 0.7 to 1.5 kJ kg-1 K -1 and the linear thermal expansion coefficient is 1 to 15 × 10 -6 / K, compressive strength greater than 125 MPa, flexural strength greater than 15 MPa, Young's modulus greater than 40,000 MPa, and density 2–3 g cm -3 is.
[0049] Furthermore, moldings made from low-carbon emission ore molding materials can withstand high temperatures, at least 450°C, while maintaining excellent mechanical and physical properties. Compared to moldings containing resin materials, such as materials containing epoxy resins, the temperature that can be withstood in the present invention is at least 200°C higher (generally, the maximum temperature range for epoxy resins is about 150°C).
[0050] As shown in FIG. 3, in one embodiment, a molding made of the low-carbon emission ore molding material of the first embodiment has a thermal conductivity of 2 to 5 W·m -1 K -1 For example, 3.0 W m -1 K -1 The specific heat capacity may be 0.8 to 2.0 kJ kg -1 K -1 For example, 1.2 kJ kg -1 K -1 and the linear thermal expansion coefficient may be 8 to 15 × 10 -6 / K, e.g., 12×10 -6 / K, and the compressive strength is greater than 125 MPa, the flexural strength is greater than 15 MPa, the Young's modulus is 45,000 MPa, and the density is 1.8 to 3.3 g cm -3 For example, 2.5 g cm -3 The logarithmic decay rate may be 0.02 to 0.04, for example, 0.03, and the decay rate may be 0.4 to 0.6, for example, 0.5.
[0051] In another embodiment, a molding made from the low carbon emission ore molding material of the second embodiment has a thermal conductivity of 3 to 9 W·m -1 K -1 For example, 6.0 W m-1 K -1 and the specific heat capacity is 0.5 to 1.6 kJ kg -1 K -1 For example, 0.85 kJ kg -1 K -1 and the linear thermal expansion coefficient may be 5 to 15 × 10 -6 / K, e.g., 7×10 -6 / K, and the compressive strength is greater than 150 MPa, the flexural strength is greater than 20 MPa, the Young's modulus is 80,000 MPa, and the density is 1.8 to 3.3 g cm -3 For example, 2.8 g cm -3 The logarithmic decay rate may be 0.01 to 0.03, for example, 0.021, and the decay rate may be 0.2 to 0.5, for example, 0.33.
[0052] Furthermore, epoxy resin ore moldings have a thermal conductivity of 2.9 to 3.0 W·m -1 K -1 and the specific heat capacity is 0.7 to 0.9 kJ kg -1 K -1 and the linear thermal expansion coefficient is 15×10 -6 / K, compressive strength is 110-150 MPa, flexural strength is 30-35 MPa, Young's modulus is 38-45,000 MPa, and density is 2.3-2.4 g cm -3 is.
[0053] Furthermore, the thermal conductivity of ordinary concrete is 2 W·m -1 K -1 and the specific heat capacity is 1 kJ kg -1 K -1 and the linear thermal expansion coefficient is 10 to 11 × 10 -6 / K, compressive strength 5-55 MPa, flexural strength 0-5 MPa, Young's modulus 22000-35000 MPa, density 2.3 g cm -3 is.
[0054] Furthermore, natural hard stone has a thermal conductivity of 1.7 W·m -1 K -1 and the specific heat capacity is 0.85 kJ kg-1 K -1 and the linear thermal expansion coefficient is 5.5 to 7.5 × 10 -6 / K, compressive strength is 280-360 MPa, flexural strength is 13-35 MPa, Young's modulus is 90000-120000 MPa, and density is 2.9-3.0 g cm -3 is.
[0055] Furthermore, cast iron has a thermal conductivity of 29 to 54 W·m -1 K -1 and the specific heat capacity is 0.46 to 0.63 kJ kg -1 K -1 and the linear thermal expansion coefficient is 9.5 to 10.5 × 10 -6 / K, bending strength of 100 to 800 MPa, Young's modulus of 80 to 185,000 MPa, and density of 7.2 to 7.4 g cm -3 , where the logarithmic decay rate is 0.003 and the decay rate is 0.05.
[0056] Furthermore, S235 series steel has a thermal conductivity of 50 W·m -1 K -1 and the specific heat capacity is 0.45 kJ kg -1 K -1 and the linear thermal expansion coefficient is 12×10 -6 / K, bending strength 340-470 MPa, Young's modulus 210000 MPa, density 7.8 g cm -3 where the logarithmic decay rate is 0.001 and the decay rate is 0.02.
[0057] Furthermore, aluminum has a thermal conductivity of 130 to 220 W·m -1 K -1 and the specific heat capacity is 0.9 kJ kg -1 K -1 and the linear thermal expansion coefficient is 23 to 24 × 10 -6 / K, bending strength 120-500 MPa, Young's modulus 70,000 MPa, density 2.7 g cm -3 is.
[0058] Furthermore, stainless steel has a thermal conductivity of 15 W·m -1K -1 and the specific heat capacity is 0.5 kJ kg -1 K -1 and the linear thermal expansion coefficient is 10 to 16 × 10 -6 / K.
[0059] Furthermore, the aluminum alloy has a logarithmic decrement of 0.01 to 0.15 and a decay rate of 0.01 to 0.05.
[0060] From the above, it can be seen that the vibration damping performance of moldings made from the low-carbon emission ore molding material of the present invention is about 10 times that of cast iron (gray cast iron), has lower thermal conductivity than cast iron, and has better heat resistance and Young's modulus than epoxy resin ore moldings, and has a low thermal expansion coefficient. In other words, moldings made from the low-carbon emission ore molding material of the present invention have effects such as heat resistance, low thermal conductivity, low expansion coefficient, and high vibration damping performance.
[0061] In one embodiment, a molding made from the low-carbon emission ore molding material of the present invention has a width of about 3 meters, a height of about 2 to 4 meters, and a length of about 4 meters. Therefore, the molding of at least this embodiment can have various effects of each of the above embodiments.
[0062] As shown in Figure 4, the present invention further provides a low-carbon emission ore molding system 10, which includes a low-carbon emission ore molding 100 and a working machine 200. The low-carbon emission ore molding 100 is made of the low-carbon emission ore molding material of any of the above-described embodiments, and a working machine 200 is connected to the low-carbon emission ore molding.
[0063] Furthermore, in one embodiment, the low-carbon emission ore molding 100 may be a base, bed, cross beam, column, spindle, body, table, etc. of a machine tool or other equipment. The working machine 200 may be a working table or a work table such as a three-axis working table, a five-axis working table, a cutter, a motor, etc.
[0064] Molded articles made from the low-carbon emission ore molding material of the present invention have low thermal conductivity, sufficient compressive strength, bending strength and Young's modulus compared to other materials, particularly conventional cast iron and concrete, and are therefore suitable for use in equipment such as machine tools that require excellent thermal insulation and impact resistance.
[0065] In addition to the above advantages, the moldings made from the low-carbon emission ore molding material of the present invention have a lower density than cast iron and most metal materials, which allows for a significant reduction in the overall weight of the finished product. In other words, moldings made from the low-carbon emission ore molding material of the present invention not only have excellent mechanical properties, but also have the effect of reducing weight.
[0066] In summary, the present invention provides a low-carbon ore molding material and a manufacturing method thereof. Processing ores produces significantly less carbon than producing metal materials, making it economical and environmentally friendly. Furthermore, the low-carbon ore molding material of the present invention does not require heating to a molten state during the molding process, thereby enabling further energy savings and effectively reducing the carbon emissions of the final product.
[0067] The above is merely illustrative and not limiting. All equivalent modifications and variations made without departing from the spirit and scope of the present invention should be included within the scope of the appended claims. [Explanation of symbols]
[0068] 11 Binder 12 Primary aggregate 13 Secondary aggregate 14 Additives 15 Reinforced Fiber 10. Facilities containing low-carbon-emission ore moldings 100 Low carbon emission ore moldings 200 Work Equipment
Claims
1. 1. A low carbon emission ore molding material, comprising: a binder comprising one or more of tricalcium silicate, dicalcium silicate, tricalcium aluminate, tetracalcium aluminoferrate, silica fume, and calcium oxide; a first aggregate having a first particle size of 5 mm or more and 15 mm or less, the first aggregate being one or more of gabbro, granite, basalt, andesite, conglomerate, sandstone, shale, diabase, pyroxene, and quartz; an additive including one or more of a water reducing agent, a magnesium oxide expanding agent, and a concrete expanding agent; The low carbon emission ore molding material has, in weight percentages, 35% to 45% by weight of the binder, 35% to 45% by weight of the first aggregate, and 2% to 8% by weight of the additive; The low-carbon ore molding material is cast and hardened to produce a low-carbon ore molding having a thermal conductivity of 2 to 7 W·m −1 K −1 , a specific heat capacity of 0.7 to 1.5 kJ·kg −1 K −1 , a linear thermal expansion coefficient of 5 to 15×10 −6 / K, a bending strength of more than 15 MPa, a Young's modulus of more than 40,000 MPa, and a density of 2 to 3 g·cm −3 .
2. 1. A low carbon emission ore molding material, comprising: a binder comprising one or more of tricalcium silicate, dicalcium silicate, tricalcium aluminate, tetracalcium aluminoferrate, silica fume, and calcium oxide; a first aggregate having a first particle size of 5 mm or more and 15 mm or less, the first aggregate being one or more of gabbro, granite, basalt, andesite, conglomerate, sandstone, shale, diabase, pyroxene, and quartz; a second aggregate having a second particle diameter of less than 3 mm and being a sandy material; an additive including one or more of a water reducing agent, a magnesium oxide expanding agent, and a concrete expanding agent; The low carbon emission ore molding material has, in weight percentages, 35% to 45% by weight of the binder, 35% to 45% by weight of the first aggregate and the second aggregate, and 2% to 8% by weight of the additive; The low-carbon discharge ore molded product obtained by casting and hardening the low-carbon discharge ore molded product material has a thermal conductivity of 2 to 7 W·m −1 K −1 , a specific heat capacity of 0.7 to 1.5 kJ·kg −1 K −1 , a linear thermal expansion coefficient of 5 to 15×10 −6 / K, a bending strength of more than 15 MPa, a Young's modulus of more than 40,000 MPa, and a density of 2 to 3 g·cm −3 . Low carbon emission ore molding material.
3. 3. The low carbon emission ore molding material according to claim 1 or 2, wherein the first aggregate is a dust-free, angular, hard stone material in an air-dried state.
4. 3. The low-carbon emission ore molding material according to claim 1 or 2, wherein the low-carbon emission ore molding is a base, bed, cross beam, column, shaft head, body, or table of a machine tool or equipment.
5. 3. The low carbon emission ore molding material according to claim 1 or claim 2, wherein the low carbon emission ore molding has a compressive strength of 125 MPa.
6. 1. A method for producing a low carbon emission ore molding material, comprising: milling the ore feedstock to form a plurality of milled ore feedstocks; sorting the plurality of crushed raw ore materials based on a first particle size to obtain a first aggregate, the first aggregate being one or more of gabbro, granite, basalt, andesite, conglomerate, sandstone, shale, diabase, pyroxenite, and quartz; mixing the first aggregate, a binder, an additive, and water to form the low carbon emission ore molding material; the binder comprises one or more of tricalcium silicate, dicalcium silicate, tricalcium aluminate, tetracalcium aluminoferrate, silica fume, and calcium oxide; the first particle size of the first aggregate is 5 mm or more and 15 mm or less; the additive comprises one or more of a water reducing agent, a magnesium oxide expanding agent, and a concrete expanding agent; the low-carbon emission ore molding material, when poured into a mold at room temperature, fills into a mold under gravity flow, and then hardens to form a low-carbon emission ore molding; The low carbon emission ore molding material has, in weight percentages, 35% to 45% by weight of the binder, 35% to 45% by weight of the first aggregate, and 2% to 8% by weight of the additive; The low-carbon emission ore molding has a thermal conductivity of 2 to 7 W·m −1 K −1 , a specific heat capacity of 0.7 to 1.5 kJ·kg −1 K −1 , a linear thermal expansion coefficient of 5 to 15×10 −6 / K, a bending strength of more than 15 MPa, a Young's modulus of more than 40,000 MPa, and a density of 2 to 3 g·cm −3 .
7. 1. A method for producing a low carbon emission ore molding material, comprising: milling the ore feedstock to form a plurality of milled ore feedstocks; sorting the plurality of crushed raw ore materials based on a first particle size to obtain a first aggregate, the first aggregate being one or more of gabbro, granite, basalt, andesite, conglomerate, sandstone, shale, diabase, pyroxenite, and quartz; providing a second aggregate, the second aggregate being a sandy material; mixing the first aggregate, the second aggregate, a binder, an additive, and water to form the low carbon emission ore molding material; the binder comprises one or more of tricalcium silicate, dicalcium silicate, tricalcium aluminate, tetracalcium aluminoferrate, silica fume, and calcium oxide; the first aggregate has a first particle size of 5 mm or more and 15 mm or less; the second aggregate has a second particle size of less than 3 mm; the additive comprises one or more of a water reducing agent, a magnesium oxide expanding agent, and a concrete expanding agent; the low-carbon emission ore molding material, when poured into a mold at room temperature, fills into a mold under gravity flow, and then hardens to form a low-carbon emission ore molding; The low carbon emission ore molding material has, in weight percentages, 35% to 45% by weight of the binder, 35% to 45% by weight of the first aggregate and the second aggregate, and 2% to 8% by weight of the additive; The low-carbon emission ore molding has a thermal conductivity of 2 to 7 W·m −1 K −1 , a specific heat capacity of 0.7 to 1.5 kJ·kg −1 K −1 , a linear thermal expansion coefficient of 5 to 15×10 −6 / K, a bending strength of more than 15 MPa, a Young's modulus of more than 40,000 MPa, and a density of 2 to 3 g·cm −3 .
8. 1. A facility including low carbon emission ore moldings, comprising: a low-carbon emission ore molded product made of the low-carbon emission ore molded product material according to claim 1 or 2; and a work machine coupled to the low-carbon emission ore molds.
Citation Information
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