51 results about "Clinker (waste)" patented technology

This utility model relates to the field of cement production technology, and in particular to a cement kiln that uses waste tires as fuel for cement clinker calcination. It includes a base, with the main body of the cement kiln fixedly installed on the top of the base. A burner is fixedly installed on the right side of the base, and a feeding cylinder is fixedly installed on the top of the burner. A drive motor is fixedly connected to the top of the feeding cylinder, and the output end of the drive motor passes through the inner cavity of the feeding cylinder and is fixedly connected to a crushing shaft. This utility model can treat exhaust gas. During use, the exhaust pipe guides the exhaust gas, and during this guidance, the water in the recovery box recovers and treats the exhaust gas. Simultaneously, the exhaust gas is introduced into the treatment box, allowing the filter plate, filling box, and adsorption packing material to treat the exhaust gas. Furthermore, during use, the feeding cylinder, drive motor, crushing shaft, and spiral shaft guide tire material into the burner, enabling the use of waste tires as fuel.

The application discloses a cement-chemicals co-production system and a control method thereof, and belongs to the technical field of carbon emission reduction and resource utilization in the cement industry. The system comprises a water electrolysis hydrogen production unit, a microwave-assisted hydrogen calcination unit, a cement clinker sintering unit, a synthetic gas purification unit, a synthetic gas proportioning unit, a chemical synthesis unit, a waste heat recovery unit and an automatic control and data monitoring unit. The microwave-assisted hydrogen calcination technology is used to decompose calcium carbonate into CO synthesis gas, oxygen by-product of water electrolysis is used for oxygen-enriched combustion, combined with accurate proportioning of synthetic gas and DCS and artificial intelligence collaborative control, the collaborative production of cement clinker and high-value chemicals is realized. The application reduces the carbon emission of the system by more than 70% compared with the traditional process, reduces the comprehensive energy consumption by more than 30%, the thermal efficiency is greater than or equal to 85%, the synthetic gas conversion rate is greater than or equal to 80%, and the carbon resource utilization rate and production stability are significantly improved, and the application has outstanding economic and environmental benefits.

This application provides a method and product for preparing a composite coal-saving synergist for cement clinker using undisturbed fluorine-containing sludge and other solid wastes in a synergistic and low-energy-consumption manner. Fluorine-containing sludge, steel slag, municipal solid waste incineration fly ash, nickel-iron slag, and aluminum ash slag are used as main raw materials. Through a series of processes including raw material pretreatment, pre-homogenization, material proportioning design, extrusion granulation and activation-induced product formation, coagulation, self-hardening, self-curing, and self-drying, a composite coal-saving synergist for calcining high-quality cement clinker is prepared. This method avoids the drawbacks of high energy consumption and inefficient utilization of dried fluorine-containing sludge during the drying process. It fully utilizes the effective components in various solid wastes, including fluorine-containing sludge, to achieve synergistic effects, enabling large-scale, low-energy, and high-efficiency treatment of fluorine-containing sludge and other industrial solid wastes.

The application relates to the technical field of lithium hydroxide production, and discloses a processing technology for preparing battery-grade lithium hydroxide, which comprises the following steps: lithium ore is crushed to a reasonable particle size and then is sent into a roasting furnace, lithium ore is destroyed through high-temperature roasting, the roasted ore clinker is sent into a reaction kettle, sulfuric acid solution is added to carry out acidification reaction, then water is added to carry out leaching, and a crude leaching solution containing lithium sulfate is obtained. The application is provided with a sealing element, the large contact area design of the L-shaped sealing strip improves the reliability of the primary sealing, the cooperation of the elastic pressing strip and the spring can effectively compensate for the slight deformation in the equipment operation process, the stability of the sealing performance is ensured, the double-sealing structure can effectively prevent the leakage of the heat exchange medium, the problems of resource waste, environmental pollution and equipment damage caused by medium leakage are avoided, the influence of cross contamination of different media on product quality is also avoided.

The application discloses a high-water-content liquid hazardous waste resourceization and collaborative treatment system and method, and belongs to the technical field of hazardous waste treatment and environmental protection. The system is composed of five units, i.e. hazardous waste receiving and pretreatment, physical and chemical separation, anti-seepage ecological assimilation plant planting, material collaborative treatment and intelligent closed-loop control. For liquid hazardous waste with a water content of 80% or more, oil, water and mud are separated through pretreatment, demulsification, flocculation, precipitation, precision filtration and oxidation treatment. The qualified water is sent to the planting unit to be assimilated by plants, achieving zero leakage, zero external discharge and no pipe connection. The oil phase, sludge solid and mature plants are incinerated in a kiln, heavy metals are solidified in clinker, and flue gas is discharged in a standard way. The application combines resources and ecological assimilation, reduces the pain point of "water burning in the kiln" from the principle point of view, greatly reduces the heat consumption and cost of current high-water-content hazardous waste direct-injection kiln incineration treatment, improves the clinker production capacity and quality, and forms a full-closed-loop resourceization without pollutant leakage.

This invention discloses a method for preparing activator-free single-component cement. The main technical method involves selecting raw meal containing silicon, aluminum, calcium, magnesium, potassium, and sodium oxides, grinding it into raw meal powder, oxidizing and calcining it at a temperature not lower than 1250°C until the phase is stable, and then rapidly cooling it to obtain clinker; the clinker is then ground into powdered cement. This cement has the characteristics of low carbon, energy saving, waste utilization, and environmental protection, and has good application prospects.

The present application relates to the technical field of subway assembled station vault backfill material, and particularly relates to a high anti-permeability self-leveling anti-cracking backfill material, a preparation method and application thereof. The backfill material takes a small amount of Portland cement clinker and a large amount of multi-source solid waste as main raw materials, and through mineral synergy, grading control and admixture regulation, the material is endowed with good flow performance and self-leveling characteristics. The backfill material provided by the present application has the characteristics of good flow performance, excellent anti-permeability, high toughness and strong anti-cracking ability, which is beneficial to reduce stone body cracks, improve the mechanical properties, anti-permeability and durability of the backfill area, reduce the occurrence of station water leakage disasters, improve the construction efficiency of the station, and realize safe and efficient construction of the subway station.

This invention discloses a process for recovering germanium from germanium-silicon alloy waste, belonging to the field of germanium recovery technology. The process includes the following steps: S1. Oxidizing and roasting the germanium-silicon alloy waste to obtain roasted clinker; S2. Sulfidating and fixing the roasted clinker and pyrite to obtain activated clinker; S3. Leaching the activated clinker with sulfuric acid, followed by solid-liquid separation, and collecting the germanium-containing leachate; S4. Performing multi-stage countercurrent extraction on the germanium-containing leachate using an amine extractant to obtain a loaded organic phase; then back-extracting the loaded organic phase with an alkaline back-extraction solution to obtain a germanate solution; S5. Hydrolyzing and precipitating the germanate solution to obtain pure germanium dioxide. The roasting process of this invention fixes impurities and activates elemental germanium into soluble germanium dioxide. The purification stage efficiently separates germanium from other impurity ions, and the final hydrolysis precipitation controls product consistency. This invention's recovery process has high recovery efficiency and purity, is more environmentally friendly, and is expected to achieve large-scale production.

The invention relates to a construction material (S), wherein the construction material (S) comprises at least cement clinker (ZK) and at least one water hardening additive (X), wherein at least one water hardening additive (X) is mixed with the cement clinker (ZK) and is not a component of the cement clinker (ZK) itself. [0002] According to the invention, the at least one water hardening additive (X) contains conventionally ground and processed municipal solid waste incineration ash (gHMVA), wherein the conventionally ground and processed municipal solid waste incineration ash (gHMVA) has a particle size of < 200 μm, and contains thermally incinerated municipal solid waste (H), and is not subject to any material alteration and / or thermal treatment except during the incineration of the municipal solid waste (H) and / or after the conventional incineration and processing of the municipal solid waste (H).

This invention relates to the field of solid waste cementitious material preparation technology, specifically to a rapid-setting and hardening cementitious material based on calcium aluminoferrite from all solid waste and its preparation method, comprising the following steps: S1. Mixing and stirring modified red mud, carbide slag, mineral powder, and modified mineralizer evenly, and then pressing into shape; S2. Performing a first-stage calcination, calcining from room temperature to 950-1000℃, and then performing a second-stage calcination to 1220-1300℃ and holding at that temperature for 30-120 minutes, and cooling to room temperature to obtain modified mineral phase clinker; S3. Passing through a 200-mesh square hole sieve, mixing with modified multi-element solid waste mineral materials in a mixer, and stirring evenly to obtain the rapid-setting and hardening cementitious material based on calcium aluminoferrite from all solid waste. This invention significantly reduces the calcination temperature of clinker through the synergistic effect of various raw materials, thereby greatly reducing energy consumption and carbon emissions. The complex ionic reaction mechanism and the complementary physicochemical properties of multi-component solid waste enrich the diversity of hydration products and the density of the gel structure, thus ultimately achieving the excellent performance of "fast setting, fast hardening, and high strength" of the all-solid waste cementitious material.

The application belongs to the technical field of quick-setting agent preparation, and particularly relates to a production process for preparing a powdery quick-setting agent master batch from aluminum ash and aluminum slag; the production process for preparing the powdery quick-setting agent master batch from the aluminum ash and the aluminum slag comprises the following steps: hazardous waste pretreatment and aluminum particle separation and recovery, ingredient mixing and clinker preparation by calcination, clinker grinding and finished product packaging, and dust removal ash intelligent closed-loop recycling control; the composite activator added in the application can effectively adsorb and fix the chloride ions in the dust removal ash, smooth the fluctuations in the content of Al2O3 in the dust removal ash, induce the early and rapid generation of needle bar-shaped ettringite crystals in the cement paste, significantly shorten the initial setting and final setting times, improve the early mechanical strength, and effectively avoid the late strength reduction; the dust removal ash intelligent closed-loop recycling control step is combined with the composite activator, the recycling ratio is intelligently adjusted through online detection, the ingredient system component is accurately controlled, and the quality of the quick-setting agent master batch product is uniform and stable.

The present application relates to the technical field of cementitious materials, in particular to a high-performance solid waste-based cementitious material and a preparation method thereof, which is composed of multi-element solid waste active micro-powder, Portland cement clinker, time sequence response type composite activator, directional crystal nucleus induction regulator, biomimetic mineralization multi-scale reinforcing agent and interface compatibility regulator; each raw material is compounded and synergized in a specific manner to meet the demand of solid waste resource utilization, taking into account high performance and environmental safety, and has a wide application prospect. The present application improves the utilization rate of solid waste, solves the contradiction between harmless and high value of hazardous solid waste, optimizes the microstructure of the material, enhances the strength, durability and stability, and has a simple and controllable process, low energy consumption and cost, and conforms to the concept of green and low carbon.

The application discloses a kind of steel slag clinker 425 cement and preparation method thereof, it is related to new cement product technical field.The preparation method includes the following steps: steel slag and glass powder are mixed with 100:25-30 mass ratio after roller compaction and grinding, and low-temperature calcination is carried out, to obtain the steel slag clinker 425 cement.The application solves the core technical bottleneck that solid waste such as steel slag cannot be used as 100% raw material for producing cement products, significantly reduces the content of free calcium oxide and free magnesium oxide of steel slag, and obtains high-performance steel slag clinker 425 cement.The application plays a role of energy saving and emission reduction, reduces carbon emissions, and protects the environment, and realizes 100% resource utilization of solid waste.The steel slag clinker 425 cement product of the application has the advantages of strong adaptability and stable performance, and becomes an innovative technology for green and low-carbon transformation of the cement and steel industries.

This invention belongs to the fields of solid waste resource utilization and non-ferrous metal metallurgy technology, and particularly relates to an aluminum-silicon alloy and its preparation method. Using aluminum ash, shell material, and diatomaceous earth as raw materials, the method includes the following steps: Step 1) Refining: Aluminum ash is roasted with alkali metal peroxide, and the resulting clinker is subjected to water leaching, acid precipitation, and calcination to obtain alumina; the solution after acid precipitation is collected, and alkali is added for precipitation to obtain aluminum fluoride; diatomaceous earth is roasted and then acid-leached, and the resulting solid is washed and dried to obtain silicon oxide powder; shell material is ground and then subjected to magnetic separation and air separation to obtain shell material powder; Step 2) Electrolysis: The alumina, aluminum fluoride, silicon oxide powder, and shell material powder are mixed in a certain proportion and then electrolytically reduced to obtain the aluminum-silicon alloy. The advantages of this invention are that it synergistically utilizes aluminum ash, shell material, and diatomaceous earth to prepare the aluminum-silicon alloy, fully utilizing the alumina, fluoride, and silicon dioxide components of the three materials, solving the technical problem of difficult separation of alumina and fluoride in shell material, and also solving the technical problem of low utilization value of diatomaceous earth.

This invention belongs to the field of metallurgical solid waste resource utilization technology, specifically disclosing an iron-based additive, its preparation method, and its application. The preparation method includes: mixing red mud, sodium salt, and a reducing agent; subjecting the mixture to reduction roasting to obtain reduced clinker; grinding and separating the reduced clinker by magnetic separation to obtain iron concentrate, thus obtaining the iron-based additive. This invention uses red mud, sodium salt, and a reducing agent stored in alumina plants as raw materials. The sodium salt significantly lowers the reduction temperature of iron ore, and by controlling the temperature and the amount of reducing agent added, the hematite is partially or completely reduced. The resulting iron-based additive is returned to the Bayer process leaching, which can significantly improve the alumina leaching rate. Simultaneously, the titanium minerals in the obtained titanium-containing tailings exist in a specific phase or in the form of amorphous sodium titanate, exhibiting higher reactivity. This invention realizes the recycling and value-added utilization of solid wastes such as red mud, and has good application prospects.

This invention provides a method for preparing hydrogen and sulfur from solid waste gypsum through reduction and acidification in a cement kiln, relating to the field of solid waste disposal technology. The method involves targeted local modifications to a novel dry-process cement clinker rotary kiln production system. Using desulfurized gypsum, phosphogypsum, and other solid waste gypsum as raw materials, the gypsum is crushed, ground, preheated, and dehydrated. Then, it is calcined in a modified three-lobe gravity semi-suspended rotary kiln at 800–1100℃ in a reducing atmosphere to generate high-purity calcium sulfide. After sealed cooling, the calcium sulfide reacts with byproduct hydrochloric acid to produce high-purity hydrogen sulfide. The hydrogen sulfide is then used to co-produce hydrogen and sulfur via a medium-assisted electrochemical decomposition method, or high-purity sulfur can be directly prepared using the Claus process. This invention achieves full resource utilization of solid waste gypsum using existing cement kiln equipment, requires minimal modification, has low investment costs, and enables the cascade utilization of CO waste gas and kiln waste heat, reducing overall energy consumption by more than 30% compared to traditional processes.

This invention belongs to the field of metal production or refining technology, and discloses a method for co-leaching vanadium and lithium from vanadium shale and lepidolite. The method includes: mechanically activating lepidolite and vanadium shale, and adjusting the carbon content of the vanadium shale; co-calcining the mechanically activated mixture to obtain calcined clinker; and leaching the calcined clinker in an acid solution to obtain a leachate and leaching residue. This invention combines mechanical activation and high-temperature calcination, which improves the leaching rate of lithium and vanadium while reducing acid and energy consumption. Furthermore, the leaching residue has low acidity and does not produce acidic waste residue.

This invention relates to the field of building materials technology, specifically disclosing a method for improving the strength of silicate clinker by using phosphate tailings and phosphogypsum as raw material admixtures. The method includes the following steps: S1, using phosphate tailings and phosphogypsum as raw material admixtures, designing a proportion where, by mass percentage, the phosphate tailings content is 2%-15% and the phosphogypsum content is 0.4-2%; mixing and grinding the phosphate tailings and phosphogypsum with other raw materials; S2, the powder obtained in S1 is preheated, decomposed, calcined, and cooled to prepare silicate clinker. In this invention, phosphate tailings mainly replace limestone, a calcareous material in the raw material, to reduce production costs. The main function of phosphogypsum is to regulate the relative content of C3S and C2S in the clinker and the proportion of M1 type C3S, thereby optimizing and improving the 3-day and 28-day strength of the clinker. This invention not only consumes two major solid wastes—high-magnesium phosphate tailings and phosphogypsum—but also improves the strength of silicate clinker.

This invention belongs to the field of solid waste recycling technology, specifically relating to a high-iron red mud-based ferroaluminate cement and its preparation method. The cement comprises the following raw materials in parts by weight: 100 parts high-iron red mud-based ferroaluminate cement clinker, 10-20 parts setting regulator compound, 5-20 parts mineral admixtures, 0.5-2 parts nucleating agent, 1-3 parts full-thiol cyclodextrin compound, and 1.5-3 parts carboxylated chitosan; the high-iron red mud-based ferroaluminate cement clinker raw materials include high-iron red mud, calcareous solid waste, siliceous aluminate solid waste, sulfate solid waste, and aluminous corrective agent; the mineral composition includes 29-45 wt% C4A3, 20-30 wt% C2S, and 18-35 wt% C4AF. Nucleating agents provide nucleation sites, accelerate the early precipitation of gel and ettringite, and compensate for the early strength reduction caused by impurities; fully mercaptocyclodextrin compounds prevent crystal distortion and later strength reduction caused by crystal transformation; carboxylated chitosan assists in chelation and regulates the crystal growth of hydration products to enhance interfacial bonding; the three work together to solve the problems of low early strength and later strength reduction caused by iron ions and other impurities in high-iron red mud.

This invention discloses a method for extracting vanadium and silver from silver-vanadium ore through reduction roasting combined with gravity and magnetic separation, belonging to the field of vanadium-silver extraction and separation technology. The method involves crushing the raw silver-vanadium ore, adding reagents including an iron source, a lead source, a reducing agent, and a binder, and then granulating it to obtain pellets. The pellets are then reduced-roasted and cooled to obtain a mixed sintered clinker. This mixed sintered clinker has a layered structure, with a lower layer of lead-silver alloy and an upper layer of a mixture of vanadium-iron spinel and silicate slag. The mixed sintered clinker is crushed and gravity-separated to recover the lower layer of lead-silver alloy. The upper layer of vanadium-iron spinel and silicate slag mixture is ground to a particle size of less than 74 μm (80-90%) and then magnetically separated to obtain vanadium-iron spinel concentrate and non-magnetic tailings. This method, by introducing iron and lead ingredients into the pellets for synergistic reduction roasting, simultaneously achieves the formation of the magnetic phase of vanadium and the liquid transformation of silver. The entire process involves no cyanide introduction and no acid or alkaline wastewater discharge, enabling efficient separation and recovery of silver and vanadium.

This invention relates to a cement kiln waste heat boiler system and its reheat temperature control method based on source-end-furnace system regulation in the field of cement industry waste heat utilization technology. The system includes a grate cooler subsystem, an AQC boiler subsystem, an SP boiler subsystem, and a DCS control subsystem. This application effectively solves fundamental and large-scale deviation problems through source-end coarse adjustment, while in-furnace fine adjustment can respond to rapid fluctuations in seconds. The synergistic effect of these two systems not only effectively reduces the alternating thermal stress caused by uneven temperature in the turbine rotor and cylinder, but also significantly enhances the expected lifespan and operational reliability of the turbine unit. Furthermore, it improves the temperature matching between main steam and reheat steam, effectively increasing the turbine's thermal efficiency. It is estimated that this can increase power generation per ton of clinker by 3-5%, thus effectively improving power generation efficiency and economics.

This utility model discloses an online cement clinker vertical weight testing device, including a base frame, a screen frame with an open top, and a funnel. The screen frame contains two layers of screens: a first screen with a 7mm aperture and a second screen with a 5mm aperture. The first screen is located above the second screen. The second screen extends at an angle near the funnel and overlaps the edge of the funnel. A handle is fixed to the top of the screen frame near the funnel, and a rolling bearing is fixed to the bottom of the screen frame. This utility model can quickly, environmentally, and cost-effectively obtain the vertical weight of cement clinker particles and data, as well as the waste material can be recycled into the clinker zipper machine, thereby enabling rapid and accurate acquisition of information on the calcination status of the clinker in the rotary kiln.

This invention discloses a method and apparatus for lithium extraction and waste heat recovery from lepidolite using a three-stage furnace, relating to the field of lithium extraction from ore. The method includes the following steps: S1, mixing: Low-grade lepidolite with an initial water content of 12-20% and a Li₂O content ≤2.5% is mixed with sodium-potassium salt and calcium salt at a mass ratio of (65-80):(3-15):(5-32) in a mixer; S2, drying: The mixture obtained in S1 is fed into a cylindrical dryer, while hot flue gas from the roasting kiln at 300-480°C is introduced into the cylindrical dryer; S3, roasting and in-situ denitrification; S4, clinker cooling and waste heat recovery; S5, grate cooler intake control. This invention effectively reduces equipment operating load and flue gas emission power consumption, further improves flue gas waste heat utilization efficiency, increases the heat exchange efficiency of the air system, maximizes energy utilization, and simultaneously reduces flue gas emissions and pollutant content.

The present application belongs to the technical field of vanadium chemical engineering and resource recycling, and particularly relates to a method for vanadium extraction by roasting vanadium-containing steel slag and vanadium slag together and then acid / alkali leaching. The steps are as follows: the ball-milled vanadium-containing steel slag and vanadium slag are mixed thoroughly and high-temperature roasted to obtain roasted clinker; the obtained roasted clinker is subjected to acid leaching or alkali leaching; a vanadium precipitation additive is added to the obtained vanadium-containing acid leaching solution to carry out vanadium precipitation reaction, and a precipitate is obtained; the obtained precipitate is heated in an air atmosphere to obtain V2O5. Based on the high calcium and vanadium-containing characteristics of the vanadium-containing steel slag, the high-value utilization of the vanadium-containing steel slag and the vanadium slag is realized by roasting them together. The method has high vanadium recovery rate, can effectively reduce the solid waste storage problem of the vanadium-containing steel slag, and has a simple process flow and is easy to realize industrial application.

The application discloses a low-carbon emission steel-cement co-production method by using methane pyrolysis and dry reforming of methane. The method comprises the following steps: (1) mixing cement raw materials with solid waste in a reactor under a methane atmosphere, and calcining to obtain calcined cement raw materials; and (2) mixing the calcined cement raw materials with iron oxide to obtain cement clinker, elemental iron and synthesis gas. In view of the high carbon emission of the steel and cement industries, the coupling of iron oxide reduction and methane pyrolysis and the coupling of calcium carbonate decomposition and dry reforming of methane are realized by introducing methane into the process of iron oxide reduction and calcium carbonate decomposition, process carbon emission generated in the production of steel and cement can be reduced while obtaining elemental iron and cement clinker, and carbon material, hydrogen and carbon monoxide composition synthesis gas are obtained, further realizing the co-production of steel, cement, chemicals and carbon material, and ensuring the low carbonization and economy of the whole production process.

The application discloses a method for calcining cement raw materials in a methane atmosphere and co-producing carbon materials. The method comprises the following steps: mixing cement raw materials with solid waste in a reactor under a methane atmosphere, and calcining to obtain cement clinker, carbon monoxide, hydrogen and solid carbon materials; the solid waste is selected from at least one of the following: blast furnace slag, high-iron fly ash, steel slag, stainless steel slag, iron oxide scale and red mud. The method effectively reduces carbon emissions in the cement production process, and simultaneously produces synthesis gas and carbon materials, greatly improving the economic efficiency and environmental benefits of the process. In addition, the catalyst can come from by-products of the steel and aluminum smelting industry, realizing waste resource utilization. The technology provides a new way for the green and low-carbon transformation of the cement industry.

The application discloses a process method for preparing SO2 coupling cement clinker production by decomposing phosphogypsum, which comprises the following steps: feeding the mixture of phosphogypsum and coal into a reduction furnace through a feeding device, and partially reducing the phosphogypsum into CaS; feeding the material at the outlet of the reduction furnace into a roasting furnace, and reacting the CaS and CaSO4 at high temperature to generate CaO and SO2; directly feeding the high-temperature CaO from the roasting furnace into a rotary kiln, and simultaneously adding clay, iron powder and coal into the rotary kiln; heating the rotary kiln to high temperature by using the waste heat of the CaO and the heat released by the combustion of the coal; firstly passing the high-temperature flue gas generated by the rotary kiln through a burn-out chamber, and then passing the high-temperature flue gas into a flue gas waste heat recovery boiler to perform heat exchange; and discharging the flue gas after dust removal by a high-temperature dust remover. After the reaction is completed, the high-temperature clinker is fed into a slag discharge waste heat recovery boiler to recover the waste heat. By using the application, the energy consumption, production cost and carbon emission amount of the cement clinker production can be greatly reduced, and the efficient and clean comprehensive utilization of the phosphogypsum can be realized.

The application discloses a kind of glass batch granulation clinker feeding control method, based on constant temperature, constant humidity, metering integrated feeding system realizes continuous stable unloading.The system includes bunker, steam heating nozzle, temperature and humidity sensor, unloading metering scale and other components, the core is in the introduction of kiln waste heat generated steam, temperature and humidity are adjusted to the inside of bunker by steam heating nozzle, and temperature and humidity sensor form interlock control, realize the real-time monitoring and automatic control of the environment in the bin.At the same time, the bunker is equipped with high-precision unloading metering scale to realize independent accurate control, the inner wall is provided with wear-resistant lining to prevent material pollution, and the outside is equipped with vibrator to ensure smooth unloading.The application solves the problems of unstable material properties, insufficient measurement accuracy and poor unloading of existing feeding methods, realizes the dual goals of energy saving and material quality stability, can adapt to intelligent production, and improves the quality and pass rate of glass products.

The present application relates to the field of environmental protection technology, and discloses a kind of solidified soil solidifying agent for solidifying harmful heavy metal ions, and the solidifying agent is composed of 85-90 parts of alkaline composite excitation core component and 10-15 parts of acid potential control bentonite carrier.It is made of industrial waste residue, low-temperature calcined synthesis silicate, clinker and calcium oxide, and the carrier is inorganic aluminum salt modified calcium-based bentonite.The present application forms a microcapsule structure with acid shell and alkaline core through dry mixing coating process, effectively inhibits the early transient hydration of the solidifying agent, and prolongs the construction operation time of the solidified soil.At the same time, the C-A-S-H gel and ettringite excited after the shell breaks are used to efficiently lock heavy metal ions through physical adsorption and crystal lattice isomorphism replacement mechanism, achieving excellent solidification effect and long-term stability, and high utilization rate of industrial solid waste, green and environmentally friendly.

The utility model relates to the field of metallurgical equipment, concretely relates to a kind of purification system of vanadium residue sodium salt calcination clinker leaching solution, including high buffer tank, vacuum separator, centrifugal separator, purification tank, storage tank, underflow tank and pressurized separator.High buffer tank's output end is connected the input end of vacuum separator, vacuum separator is set to wash and solid-liquid separation to vanadium residue sodiumization calcination clinker, obtain vanadium leaching solution;The output end of vacuum separator is connected the input end of centrifugal separator, the output end of centrifugal separator is connected the input end of purification tank, the output end of purification tank is connected the input end of storage tank and underflow tank, the output end of underflow tank is connected the input end of pressurized separator.The utility model can realize the purification of vanadium leaching solution without complex process, and avoid fine particle residue mixing into phosphorus removal residue, realize the separate recycling of residue and phosphorus removal residue, reduce the cost of vanadium-containing solid waste treatment.