379 results about "Bauxite" patented technology

An LIBS-based bauxite component quantitative detection method and a related apparatus. The method comprises: controlling an LIBS system to collect actual spectral data of bauxite under test; preprocessing the actual spectral data to obtain preprocessed actual spectral data; on the basis of the preprocessed actual spectral data, extracting corresponding feature elements to be detected, said feature elements comprising one or more of information about feature wavelengths to be detected, information about element wavelengths to be detected, and information about remaining wavelengths to be detected; and, on the basis of said feature elements and a quantitative detection model, determining component information of said bauxite.

The invention belongs to the technical field of motor casing lost foam casting, and particularly relates to a special coating for a motor casing lost foam as well as a preparation method and application thereof. Through a quantitative formula design method, an aggregate proportion calculation formula based on thermal expansion coefficient matching and a grain size distribution correlation formula based on target air permeability, cooperative compounding of quartz powder and bauxite is achieved, and key functional components such as mullite, organic matter fibers and crystalline flake graphite are combined; the unification of high air permeability and excellent crack resistance of the motor shell lost foam coating is realized. The invention further provides a two-time coating gradient drying efficient process matched with the coating, and on the premise that the coating performance is guaranteed, the production efficiency is remarkably improved, and the energy consumption is reduced.

The invention discloses a false-inclined multi-layer strip mining method for gentle-inclined medium-thickness underground sedimentary bauxite. The method is particularly suitable for safe and efficient mining of gentle-inclined medium-thickness bauxite with an unstable top plate. An in-vein middle-section transportation roadway is arranged in an ore body to divide the ore body into different middle sections, top and bottom columns are reserved between the middle sections, mining areas are divided in the middle sections in the moving direction of the ore body, columns are reserved between the mining areas, a mining area slope ramp, a lower layered ore loading gate way, a segmented transportation gate way, a layered connection way and an upper layered cutting gate way are respectively tunneled, and strips of two specifications are arranged; the arranged mining areas, ore blocks, mining area ramps, strips and studs are all arranged in a pseudo-inclined mode, the stoping operation is divided into two steps for layered stoping, the strips of 3-5 m are firstly stoped, the strips of 6-8 m are then stoped, according to the stoping sequence that the lower layer is firstly stoped and then the upper layer is stoped, and filling is conducted in time after each layer is stoped. The method is in-vein engineering and has the advantages of being small in mining and cutting engineering amount, good in safety and economical efficiency, high in recovery efficiency and the like.

Ultrafast flash evaporation joule heating synthesis methods and systems, more particularly, ultrafast synthesis methods for recovering metals from ores, fly ash, and bauxite residue (red mud).

The preparation process comprises the following steps: uniformly mixing 80-90 parts by mass of fused mullite, 1-2 parts by mass of modified ZrSiO4 fine powder, 5-8 parts by mass of alpha-Al2O3 fine powder, 2-4 parts by mass of silicon powder, 3-5 parts by mass of aluminum powder and 3-5 parts by mass of mullite microsphere powder, adding 5-8 parts by mass of a binding agent, and uniformly mixing to obtain pug; the preparation process of the mullite microspheres comprises the following steps: mixing bauxite, feldspar and silica powder, adding water, grinding into slurry, carrying out spray drying, sintering, and rapidly cooling after sintering; the pug is sealed and stacked for 12-24 h and then subjected to high-pressure forming, and a blank is obtained; and gradually heating the blank to 120 DEG C, drying for 24-48 hours, and firing and molding. The ultralow-porosity anti-erosion brick is low in porosity and good in anti-erosion performance.

The invention relates to a resourceful treatment method for a bauxite ore washing tail mud reservoir, which comprises the following specific steps: 1, carrying out cyclone classification on tail mud in the tail mud reservoir, and separating out coarse particles with A / S greater than or equal to Y and A / Slt; and Y fine particles. And 2, carrying out flotation treatment on the coarse particles. And potassium carbonate is added as a dispersing agent and a pH value adjusting agent, the pH value of the ore pulp is adjusted to 8.0-10.5, then sodium oleate is added as a collecting agent, and finally bauxite concentrate and flotation tailings are obtained. And 3, dehydrating the fine particles to obtain dehydrated tail mud with the water content of less than or equal to 20%. And 4, adding the flotation tailings and the dehydrated tail mud into a curing agent or a soil conditioner to form cultivable soil which is used for ecological restoration of the stony desertification area. Potassium carbonate is used for replacing sodium carbonate to reinforce flotation, so that tailings can be used as potassium-rich cultivation soil; the dam break risk can be eliminated after the tail mud is dehydrated; tailings and fine particles are compounded to form cultivation soil to treat stony desertification, silicon fertilizer is synchronously produced, the annual income is larger than or equal to 0.3 million yuan, and safe, resource and ecological cooperative treatment is achieved.

The invention provides a ceramsite proppant as well as a preparation method and application thereof. The method comprises the following steps: grinding a coal gangue raw material, pre-sintering, cooling and then grinding again; grinding the tungsten tailing sand, the low-grade bauxite, the carbide slag and the clay; grinding after mixing the raw materials; the raw materials comprise 45-60 parts of low-grade bauxite, 20-35 parts of pre-sintered coal gangue, 15-20 parts of tungsten tailing sand, 1-5 parts of carbide slag and 7-14 parts of clay; the total amount of the low-grade bauxite, the pre-sintered coal gangue and the tungsten tailing sand is 100 parts; granulating and drying; carrying out first sintering at 800-950 DEG C; second sintering is conducted at the temperature of 1050-1200 DEG C; and naturally cooling to obtain the ceramsite proppant. The technical problem to be solved is how to realize high-valued utilization of mine solid waste and low-grade bauxite, reduce dependence on high-quality bauxite and production cost, reduce sintering energy consumption and carbon emission, reduce product body density and improve key performance such as strength and sphericity of the proppant by optimizing raw material combination and a preparation process. And the requirements of oil and gas field fracturing operation are met.

An online detection method for a bauxite component, and a related device. The method comprises: controlling an LIBS system to collect n pieces of actual spectral data from bauxite to be tested on a preset-speed conveyor belt; performing a preset processing operation on the n pieces of actual spectral data, so as to acquire a set of preprocessed actual spectral data; calculating a screening distance between each piece of preprocessed actual spectral data in the set of preprocessed actual spectral data and a bauxite category spectrum, and adding, to an effective spectral data set, the preprocessed actual spectral data with the screening distance less than or equal to a preset distance, wherein the bauxite category spectrum is obtained by measuring a standard sample with known components on the basis of a static mode; using the average value of the first m pieces of spectral data in the effective spectral data set as actual continuous transmission spectral data; and inputting the actual continuous transmission spectral data into an optimal model, so as to acquire a bauxite component corresponding to each piece of spectral data.

The invention discloses an X-ray fluorescence spectrum detection method and system for bauxite, a medium and a product, and relates to the technical field of bauxite detection. According to the method, firstly, fluorescence spectrum data of a sample to be detected and mining area environment fingerprint data are obtained, and the initial concentration is determined through background noise stripping; then constructing a mineral phase interference network, calculating an interface radiation attenuation rate and a secondary fluorescence excitation probability based on mineral phase characteristics, and generating an interphase coupling interference matrix; constructing a stress field model according to environmental parameters, and correcting an interference matrix by using a lattice distortion coefficient; and inputting the symbiotic mineral phase combination into the environment adaptive interference model, and determining a nonlinear matrix effect deviation value. And finally, carrying out iterative compensation correction until the difference between adjacent correction values is smaller than a threshold value, and outputting accurate grade data of the target metal element. By implementing the technical scheme provided by the invention, the accuracy of X-ray fluorescence spectrum detection of bauxite can be improved.

The invention relates to the technical field of regenerated aluminum oxide preparation, in particular to a preparation method, production equipment and application of regenerated aluminum oxide superfine powder. The preparation method comprises the following steps: sequentially carrying out centrifugal spray drying and fluidized drying on a regenerated aluminum oxide wet material, carrying out fluidized roasting phase inversion, and carrying out high-temperature jet milling and grading, and the regenerated aluminum oxide wet material is mainly prepared from aluminum ash. According to the method, the regenerated aluminum oxide wet material is utilized, the regenerated aluminum oxide superfine powder with the main component being alpha-Al2O3 can be prepared, bauxite does not need to be processed, and the problems that operation is complex in the bauxite processing process and the crisis of bauxite backup resources is aggravated are solved.

The invention provides a method for preparing aluminum oxide and extracting lithium from lithium-rich bauxite waste rocks, and belongs to the technical field of solid waste comprehensive utilization. The method comprises the following steps: crushing and grinding the lithium-rich bauxite waste rocks, mixing with an acid mixed solution, leaching to remove iron to obtain a low-iron filter cake, adding concentrated sulfuric acid, roasting, curing, leaching with water, carrying out hot filtration to obtain a filtrate, adding a crystallizing agent, dissolving, evaporating to obtain a steel belt crystallizer crystal, stirring and washing a saturated solution to obtain a lithium-containing solution and low-iron aluminum ammonium sulfate, purifying the lithium-containing solution to remove impurities, and precipitating lithium with sodium carbonate to prepare lithium carbonate; and calcining the low-iron ammonium aluminum sulfate to prepare aluminum oxide. The method provided by the invention has the advantages of simple process, low energy consumption in roasting and leaching of aluminum and lithium, high recovery rate of valuable components of aluminum and lithium, high iron removal rate, high separation efficiency of aluminum and lithium, low extraction cost of aluminum and lithium, recyclability of the crystallizing agent and the like, is easy for industrial implementation, and greatly improves the comprehensive utilization value of the lithium-rich bauxite waste rocks.

The invention belongs to the technical field of refractory materials, and particularly discloses a preparation method of an aerogel modified silicon mullite brick with high strength and low heat-conducting property. Comprising 5-15 parts of silicon carbide particles, 50-70 parts of bauxite A, 19-29 parts of bauxite B, 5-10 parts of bauxite fine powder, 1-2 parts of unmodified aerogel powder, 1 part of a solvent and 3-6 parts of alcohol. The preparation method comprises the following steps: 1, mechanically stirring and mixing silicon carbide particles, bauxite A, bauxite B, bauxite fine powder and a solvent to obtain a mixed raw material; 2, adding the aerogel powder into the mixed raw material, and continuously stirring and mixing to form aggregate; step 3, processing the aggregate through a brick press to obtain a green brick; and 4, placing the green brick in a tunnel kiln, carrying out gradient heating sintering, and discharging the green brick out of the kiln to obtain the aerogel modified silicon mullite brick. The refractory material has low heat conductivity, high strength and good fire resistance, and has remarkable economic benefits and environmental protection values.

The invention discloses a lightweight high-strength ceramsite proppant based on composite coating and low-temperature densification and a preparation method thereof. The coating proppant comprises a ceramsite proppant and a coating layer coating the surface of the ceramsite proppant, relates to the technical field of petroleum and natural gas engineering fracturing. The ceramsite proppant comprises bauxite, perlite, a composite sintering aid, B2O3 and AlF3. The composite sintering aid comprises MnO2 and TiO2; wherein the weight part ratio of the bauxite to the perlite to the composite sintering aid to the B2O3 to the AlF3 is 80: 20: (2.5-7.5): (3-12): (3-12); the low-grade bauxite and high-silicon raw material system is adopted, and a proper amount of sintering aid is introduced, so that the sintering temperature is effectively reduced, and the energy consumption is reduced; meanwhile, the volume density of the ceramsite proppant is reduced, and a lightweight product is obtained.

The application relates to a bauxite-based corundum mullite hollow sphere with a gradient structure and a preparation method thereof, and belongs to the field of heat-insulating refractory materials. The preparation method comprises the following steps: firstly, high-alumina bauxite is beneficiated and classified and homogenized, then, according to a certain mass percentage, III-grade high-alumina bauxite, silica, mixed additives and an organic binder are uniformly mixed and granulated; taking spherical particles as cores, II-grade high-alumina bauxite and I-grade high-alumina bauxite are sequentially wrapped under the rotation of a granulator to obtain a non-homogeneous spherical particle blank body with a SiO2-rich interior; and finally, the corundum mullite hollow sphere with the gradient structure is obtained through high-temperature calcination. The refractory hollow sphere is designed with the gradient structure through the combined process of high-alumina bauxite classification and homogenization, coating forming and high-temperature calcination in-situ pore forming, the phase performance characteristics of corundum and mullite are fully utilized, and the refractory hollow sphere with the low thermal conductivity, the good corrosion resistance, the high use temperature and the excellent thermal shock resistance is developed.

The invention discloses long-acting self-cleaning domestic ceramic and a preparation process thereof, and belongs to the technical field of ceramic. Comprising the following steps: firing a ceramic body; the preparation method comprises the following steps: loading cobalt-zinc-doped titanium by using carboxylated cellulose nanofibers to obtain a material A; chelating the material A with a manganese source, and crystallizing to obtain a material B; carrying out surface hydrophilic modification treatment on the material B, and roasting to obtain a material C; mixing kaolin, calcite, potassium feldspar, albite, high bauxite and mullite, carrying out ball milling, adding deionized water, ethylene glycol, calcium oxide, sodium tripolyphosphate and the material C, and continuously carrying out ball milling to obtain glaze; the long-acting self-cleaning domestic ceramic is obtained by applying the glaze to the ceramic body, drying, firing and cooling, and the long-acting lasting self-cleaning antibacterial performance of the domestic ceramic is improved.

The invention relates to the technical field of bauxite flotation, and discloses a bauxite flotation device which comprises a base, a telescopic rod is installed at the top of the base, a spring is installed on the outer ring of the telescopic rod, and a workbench is fixedly connected to the top of the spring; the vibration mechanism is mounted at the top of the base and used for vibration treatment of the workbench; and the working mechanism is installed on the top of the workbench and used for the normal flotation process. Through cooperation of the telescopic rod arranged at the bottom of the workbench and the spring and cooperation of the vibration mechanism composed of the driving motor, the cam and the cam base, high-frequency micro-amplitude vibration can be actively generated in the flotation process and after operation is finished, mineralized foam or residual chemicals attached to the inner wall of the workbench are effectively stripped through inertia force, and the flotation efficiency is improved. The wall sticking phenomenon is obviously reduced.

This invention discloses a lightweight, high-strength ceramsite proppant based on composite coating and low-temperature densification, and its preparation method. The coated proppant includes a ceramsite proppant and a coating layer covering the surface of the ceramsite proppant. It relates to the field of fracturing technology in oil and gas engineering. The ceramsite proppant includes bauxite, perlite, a composite sintering aid, B2O3, and AlF3; the composite sintering aid includes MnO2 and TiO2; wherein the weight ratio of bauxite, perlite, composite sintering aid, B2O3, and AlF3 is 80:20:2.5-7.5:3-12:3-12. This invention uses a low-grade bauxite and high-silica raw material system, combined with the introduction of an appropriate amount of sintering aid, effectively reducing the sintering temperature and energy consumption; simultaneously reducing the bulk density of the ceramsite proppant, resulting in a lightweight product.

The invention relates to the technical field of refractory brick processing, and discloses a dust-free raw material mixing device and process for converter tapping hole refractory brick processing, the dust-free raw material mixing device for converter tapping hole refractory brick processing comprises a material mixing cylinder, a stirring mechanism is arranged in the material mixing cylinder, and the stirring mechanism comprises an inner rotating cylinder, an outer rotating cylinder and a mounting ring; a driving mechanism is arranged at the top of the mixing barrel and comprises a driving motor, a pressure sensor, a driving gear, a rotating disc and a connecting ring, and a rotating column is fixedly mounted on an output shaft of the driving motor. The device is reasonable in design, the stirring resistance is monitored in real time through the pressure sensor, mechanical impact force is effectively converted and instantaneous overload is avoided by combining a pre-pressing buffer structure for connecting the spring and the damper, the motor is protected against damage through the design, the rotating speed in the mixing barrel can be kept stable, and the service life of the mixing barrel is prolonged. The continuous and uniform mixing of the high-alumina bauxite and the corundum powder under the variable-load working condition is ensured, and the durability of equipment and the production continuity are remarkably improved.

This invention relates to a method, system, medium, and product for X-ray fluorescence spectrometry detection of bauxite, belonging to the field of bauxite detection technology. The method first acquires fluorescence spectral data and mining area environmental fingerprint data of the sample to be tested, and determines the initial concentration by background noise stripping. Then, a mineral phase interference network is constructed, and the interfacial radiation attenuation rate and secondary fluorescence excitation probability are calculated based on mineral phase characteristics to generate an interphase coupling interference matrix. Next, a stress field model is constructed based on environmental parameters, and the interference matrix is ​​corrected using the lattice distortion coefficient. The coexisting mineral phase combination is input into the environmental adaptive interference model to determine the nonlinear matrix effect deviation value. Finally, iterative compensation correction is performed until the difference between adjacent correction values ​​is less than a threshold, outputting accurate grade data of the target metal element. Implementing the technical solution provided in this application can improve the accuracy of X-ray fluorescence spectrometry detection of bauxite.

The present application relates to a kind of bauxite clinker kiln method and system for disposing aluminum ash, belong to metallurgical environmental protection technical field, the method includes the following steps: pretreatment aluminum ash, obtain fine powder aluminum ash;Fine powder aluminum ash is added to bauxite slurry, so that fine powder aluminum ash and the dry raw material and calcined coal ash in bauxite slurry are mixed, and mixed sintering is carried out, and then cooling is carried out, to obtain clinker;The present application carries out resource utilization to aluminum ash, replaces part of aluminum ore, and is used in the production of aluminum-based new material product, while reducing the production cost of aluminum-based new material product, realizes the harmless treatment of aluminum ash.

The utility model relates to a bauxite detecting and sampling device which comprises a connecting rod, a positioning disc, a pulley, a guide shaft, a connecting line, a long sliding nail and a second spring, the connecting rod is a hollow shaft and connected to the bottom of the sampling barrel, the bearing plate is slidably connected to the connecting rod, the positioning disc is fixedly arranged on the lower portion of the connecting rod, the pulley is rotatably arranged at one end of the positioning disc, the guide shaft is arranged in the connecting rod, and the long sliding nail is slidably connected to the top of the sampling barrel. A second spring is arranged at the top of the long sliding nail and abuts against the top of the sampling barrel, and the connecting line is connected to the bottom of the long sliding nail, penetrates through the guide shaft and the pulley and then is connected with the bottom of the bearing plate; and the situation that when a position with high hardness is encountered under different working conditions, sampling vibration is large, and false alarms are likely to be generated can be avoided.

The invention discloses a special evanescent mode casting coating for castings and a preparation method thereof, and relates to the technical field of evanescent mode casting paints.The special evanescent mode casting coating for the castings is prepared from 80-86 parts of refractory aggregate, 5-7 parts of bio-based composite binder, 2.5-4 parts of composite suspension, 0.4-0.6 part of dispersing aid and 0.3-0.4 part of coupling agent. 6 to 12 parts of deionized water; the invention discloses a preparation method of a special lost foam casting coating for castings. The method comprises the following steps: S1, premixing dry materials; s2, preparing a liquid phase; s3, mixing and dispersing; s4, performing vacuum defoaming; s5, ultrasonic treatment; and S6, quality detection. According to the lost foam casting coating special for the casting and the preparation method of the lost foam casting coating, in the preparation process, bauxite, quartz powder and bauxite are matched according to the proportion of 9: 1 and then graded in a gradient mode according to the proportion of 3: 5: 2, the coating forms a double-layer structure with a compact surface layer and a porous inner layer through gradient grading, the surface layer is resistant to sand burning and molten metal scouring, and the inner layer rapidly exhausts steam; therefore, the requirements of sand adhesion prevention, ventilation and steam exhaust are met.

Dispersible activated bauxite granules are disclosed and methods for forming dispersible activated bauxite granules are disclosed in which bauxite is activated by a granulation process.

The invention relates to a method of beneficiation of high-carbonated bauxites to remove carbonates to produce alumina by the Bayer process, said method comprising grinding bauxite in a solution of ethylenediaminetetraacetic acid (EDTA) disodium salt with a concentration of no less than 100 g / dm3, holding the obtained slurry while stirring at a temperature of no less than 70 °C, followed by filtering the obtained slurry to obtain a beneficiated bauxite and solution saturated with calcium salts, the beneficiated bauxite with a reduced carbonate content is fed to alumina recovery and the solution saturated with calcium salts is fed to regeneration of the EDTA disodium salt. The proposed method provides for effective removal of carbonates from bauxites (> 90 %), as well as increases the recovery of market-grade alumina from bauxites.

This invention discloses a high-strength ceramic valley-peak structured corrugated filler, the raw materials of which include clay, kaolin, potassium feldspar powder, cordierite powder, zirconium dioxide powder, reinforcing granular powder, bauxite, and a binder. The corrugated filler material prepared by the method described in this invention has good strength, making it less prone to breakage during stacking or use, thus improving the usability and durability of the corrugated filler.

The application relates to an alumina bauxite rod grinding device for alumina production and a working method thereof, and belongs to the technical field of alumina production equipment. The device comprises a rod grinding cylinder and an up-down rod mechanism. The up-down rod mechanism comprises a U-shaped base, a supporting seat, a rotating disc, a first fixing disc, a roller support, a conveying roller, a supporting beam, a detector, an electromagnetic seat, a rotating ring, a second fixing disc and a centering limiting assembly. The detector scans and detects the steel rods in the cylinder, accurately positions the positions of unqualified steel rods, and the electromagnetic seat is electrified to adsorb the steel rods. The vertical separation of the steel rods is realized through winding wheel lifting. The centering limiting assembly automatically centers the front end of the up-down rod mechanism on the central axis of the rod grinding cylinder. The guide wheel is in rolling contact with the cylinder wall, so that the rotation of the rod grinding cylinder is independent of the up-down rod mechanism. The application realizes on-line rod selection and replacement under the non-stop state, and solves the technical problems of the traditional mode, such as the need for stopping and emptying, uncertain rotating position and high labor intensity.

The utility model discloses an automatic packaging device for bauxite, and relates to the technical field of methods or devices for loading materials into containers or storage devices. The automatic packaging device for the bauxite comprises a conveying table, a storage box is arranged on the upper side of the conveying table, a box cover is installed on the upper side of the storage box, a fixing block is fixedly connected to the lower side of the storage box, two supporting blocks are fixedly connected to the lower side of the fixing block, and the lower sides of the two supporting blocks are fixedly connected with the conveying table; the lower side of the material storage box is fixedly connected with a first discharging pipeline, the first discharging pipeline communicates with the interior of the material storage box, the lower side of the first discharging pipeline penetrates through a fixing block, and dust suppression mechanisms are arranged on the fixing block and a right side supporting block. Therefore, the dust removal part of the equipment is not easy to fail, the problems of performance reduction and higher maintenance cost are avoided, and the normal use of the device is facilitated.

This invention proposes a mullite composite brick, its preparation method, and its applications, belonging to the field of refractory materials technology. MXene is prepared by etching the MAX phase with hydrofluoric acid, and Si / Al oxide intercalated MXene is prepared by sol-gel reaction. After modification with polydopamine, intercalated montmorillonite is obtained by adding it to a sodium-based montmorillonite suspension. This intercalated montmorillonite is then uniformly mixed with a binder, high-alumina bauxite, and silicon carbide powder, machine-pressed, and calcined to obtain the mullite composite brick. The mullite composite brick prepared by this invention has good thermal insulation, heat insulation, refractory, and mechanical properties, excellent alkali resistance, improved bonding strength, and extended service life. It also has excellent thermal insulation effect, reduces heat loss, and thus plays a role in energy saving, showing broad application prospects.

The invention relates to the technical field of refractory materials, in particular to an impervious heat-insulation refractory castable for an aluminum melting furnace and a preparation method of the impervious heat-insulation refractory castable. The refractory material comprises the following components in parts by weight: 20-30 parts of bauxite, 30-40 parts of corundum powder, 6-8 parts of zirconium oxide, 8-12 parts of modified graphite powder, 10-15 parts of silica powder, 3-6 parts of a binding agent and 1-5 parts of a water reducing agent. According to the refractory castable disclosed by the invention, the bauxite and the corundum powder are used as aggregates, so that the erosion of aluminum slag can be effectively avoided, and meanwhile, the wetting angle between the refractory castable and molten aluminum can be increased by adding the modified graphite powder, so that the refractory castable has good erosion resistance and heat insulation performance.

The utility model discloses an industrial waste residue composite cementing material preparation system which comprises a first calcining furnace, a kaolin feeding hole and a bauxite feeding hole are formed in the first calcining furnace, the first calcining furnace is connected with a first mixing kettle, and a coal ash feeding hole and a 10% sodium hydroxide solution feeding hole are formed in the first mixing kettle; the outlet end of the second calcining furnace is connected with the inlet end of the dehydrating tower, the outlet end of the dehydrating tower is connected with the inlet end of the second calcining furnace, the second calcining furnace is provided with a sodium dihydrogen phosphate feed port and a urea feed port, and the second calcining furnace is connected with the second mixing kettle; the second mixing kettle is provided with a red mud feeding hole, a coal gangue feeding hole, a metallurgical slag feeding hole and a glass water feeding hole; and the second mixing kettle is sequentially connected with the air furnace, the grinding kettle and the finished product bin. According to the utility model, the stockpiling of industrial solid wastes can be reduced, the environmental pollution can be effectively reduced, and the problem of infrastructure material shortage can be effectively relieved on the premise of ensuring the engineering quality.