12results about How to "Enable co-processing" patented technology

The invention belongs to the technical field of solid waste treatment, and particularly discloses an iron tailing and coal gangue synergistic magnetizing roasting iron recovery and activity improvement optimization method which comprises the following steps: S1, taking coal gangue doping amount, carbon powder doping amount, heating temperature and heating time in magnetizing roasting as influence factors; designing a response surface test scheme by taking the iron grade and the iron recovery rate of the reduced iron powder and the tailing activity index as response values; s2, iron tailings, coal gangue and carbon powder are mixed, magnetization reduction roasting, ball milling and magnetic separation are conducted, reduced iron powder is recovered, and the iron grade and the iron recovery rate of the reduced iron powder are tested; s3, testing the activity index of the tailings; s4, establishing a response surface model of three response values, and verifying the reliability of the model; and S5, obtaining an optimization technical scheme which simultaneously meets the multi-objective optimization demand conditions of the three response surface models. The application value of the reduced iron powder of the iron tailings and the application value of the tailings are synergistically improved, the overall income of iron tailing treatment products is improved, and solid waste co-treatment is achieved.

The invention relates to a multi-source iron-containing solid waste cold solid ball and a preparation method, and belongs to the technical field of solid waste treatment. The cold bonding ball comprises the following raw materials in parts by weight: 40-70 parts of iron-containing dust mud, 15-40 parts of a secondary metal material, 1-5 parts of a binder and 5-12 parts of a liquid modifier. A consolidation system with continuous and reasonable gradation is formed by utilizing pore filling of the fine-grained iron-containing dust mud and an aggregate bridging effect of the coarse-grained secondary metal material, so that the compactness and the compressive strength are improved; chloride ions in high-salinity wastewater are used for modifying raw materials, oxidation phase change of metal iron and low-valence iron oxide in a secondary metal material is promoted, a high-strength binding phase is generated, the compressive strength of the pellets is effectively improved, co-treatment of wastewater and multi-source solid waste is achieved, and under the condition that the cost of a binding agent is not additionally increased, the cost of the binding agent is reduced. And the cold consolidation strength of iron-containing solid wastes with different components is improved.

This invention belongs to the technical field of industrial flue gas purification and solid waste resource utilization, specifically involving hydrogen fluoride adsorbents, their preparation methods and applications, and the application of waste adsorbents as fluoride electrode materials. The invention involves sequentially subjecting decayed oak wood to anaerobic fermentation and vacuum micro-aerobic pyrolysis to obtain a porous biochar carrier; loading a metal precursor onto the porous biochar carrier using an impregnation method to obtain a semi-finished product; and calcining the semi-finished product in a protective gas atmosphere to obtain the hydrogen fluoride adsorbent. The hydrogen fluoride adsorbent provided by this invention exhibits a high adsorption rate for HF, and the saturated waste adsorbent can be reused as a fluoride electrode material, demonstrating excellent cycle stability and rate performance. This invention provides a novel pathway for the functional transformation of biomass waste and the preparation of high-performance energy storage materials, while simultaneously reducing the cost of HF adsorbents, and has broad practical application value.

The utility model discloses a composite bypass ventilation system for gradient utilization of waste heat, which comprises a preheater system provided with a kiln tail smoke chamber and a kiln head grate cooler. The composite bypass ventilation system sequentially comprises a cyclone separator, a waste heat boiler, a dust collector, a salt washing branch and a smoke branch, wherein the salt washing branch and the smoke branch are connected to the dust collector in parallel. The three-stage separation steps of cyclone separator solid-gas separation, preheater solid-gas separation and dust collector solid-gas separation are formed, harmful elements in a cement kiln system are reduced, and the crusting and blocking risks of the preheater are relieved. In addition, co-treatment of the flue gas and the waste gas of the environment-friendly workshop is realized at the cyclone separator; at the waste heat boiler, a part of steam is generated and supplied to a salt water evaporation system for salt production; flue gas with fine ash separated through the dust collector is conveyed into the salt washing branch at the dust collector to jointly form a three-stage waste heat utilization step, and the operation cost of cement enterprises is saved.

The invention discloses an organic fertilizer composition taking fermented sludge as a matrix. The organic fertilizer composition is prepared from a sludge matrix, a structural auxiliary material and a functional biological agent, wherein the weight ratio of each component is as follows: 45-100 parts of the decomposed sludge, 15-50 parts of the structural auxiliary material and 0.1-2.0 parts of the functional biological agent; the water content of the sludge matrix is lower than 30%, the sludge matrix is sludge subjected to harmless fermentation treatment, and the functional biological agent comprises nitrogen fixation, phosphate solubilizing, potassium solubilizing and microbial flora; the structural auxiliary material is a mixture of agricultural organic waste and an inorganic mineral conditioner. Compared with the prior art, the organic fertilizer composition with the fermented sludge as the matrix and the processing technology of the organic fertilizer composition have the advantages that the harmless degree is high, the physical property is excellent, functional viable bacteria are rich, and efficient resource utilization of the sludge is achieved.

The application discloses a method for preparing arsenic-cadmium alloy by using arsenic-cadmium acid waste liquid, and belongs to the technical field of wastewater treatment. The application realizes the selective precipitation of arsenic and cadmium in the form of Cd5H2(AsO4)4.4H2O with high purity and complete crystal form by precisely controlling the molar ratio of cadmium to arsenic in the waste liquid to be 1.2-1.6 and adjusting the pH of the precipitation to be 4-6, thereby realizing the deep removal of the two toxic elements of arsenic and cadmium, and the removal rate of arsenic can reach more than 96.70%, and the process flow is greatly reduced. The Cd5H2(AsO4)4.4H2O-based precipitation slag is converted into high-purity arsenic-cadmium alloy by carbon thermal reduction, the amount of slag is greatly compressed, and the storage and landfill of waste materials are significantly reduced. The alloy can be further used to prepare downstream products such as semiconductor materials as a high-value-added product, realizes the high-value conversion from harmful waste to high-end raw materials, and has remarkable green disposal and resource utilization benefits.

This invention belongs to the field of solid waste resource utilization technology, specifically disclosing a method for the thermal quenching and iron extraction from high-moisture, iron-containing solid waste using waste heat, including the following steps: S1: Mixing iron tailings slurry and / or red mud slurry with carbon powder in a specific ratio to obtain a mixed slurry; S2: Pouring molten steel slag into a quenching tank; S3: Spraying the mixed slurry onto the surface of the molten steel slag; S4: After the water in the mixed slurry evaporates, crushing and turning the steel slag to form a steel slag mixture; S5: Repeating S2-S4 until the steel slag mixture reaches the rated capacity of the quenching tank, then covering the quenching tank; S6: Injecting water into the quenching tank for quenching; S7: Crushing the quenched steel slag mixture to extract metallic iron particles; S8: Ball milling the remaining material to extract iron concentrate; S9: Using the remaining tailings as raw material for building materials. This method achieves the synergistic treatment of multi-source solid waste and the secondary utilization of waste heat from molten steel slag and slurry wastewater.

The application relates to a car multi-domain safety fusion method and system, and belongs to the technical field of cars. The method comprises the following steps: acquiring multi-source heterogeneous data in a safety domain, wherein the multi-source heterogeneous data comprises a plurality of safety events; processing the plurality of safety events to convert the plurality of safety events into a plurality of sequence events in a unified time sequence; acquiring risk scores of the plurality of sequence events, and evaluating event correlation between the plurality of sequence events to acquire a correlation amplification coefficient; acquiring a comprehensive safety situation value based on the risk scores and the correlation amplification coefficient; matching a corresponding response strategy in a preset cooperative response knowledge base based on the comprehensive safety situation value; and conveying a cooperative response instruction to a controller of the safety domain according to the matched response strategy. Through integration of multi-source heterogeneous data in three fields of functional safety, network safety and intended functional safety, unified analysis and cooperative disposal of cross-domain safety events are realized, and the accuracy of vehicle emergency response is improved.

This invention belongs to the field of environmentally friendly functional new materials, and relates to a method for the targeted application of polymerized artificial soil in solid waste treatment facilities. It also includes a geopolymerizing agent comprising the following components: a compound coupling agent and an auxiliary matrix; the weight ratio of the compound coupling agent to the auxiliary matrix is ​​10-40:20-90; wherein the compound coupling agent comprises the following components: a geopolymerizing liquid and a compound coupling agent; the weight ratio of the geopolymerizing liquid to the compound coupling agent is 50-90:10-50. This invention optimizes and integrates geopolymerization solidification technology, coupling technology, and synergistic technology. By establishing a geopolymerization-coupling-synergistic treatment technology, it promotes the synergistic treatment of multi-source waste, compensates for the shortcomings of geopolymerization solidification technology, and realizes the resource utilization and zero emission of multi-source waste in various scenarios, both inside and outside landfills, and in municipal industrial parks.

The invention relates to the technical field of carbon sequestration and emission reduction, and discloses a method for preparing an aerated concrete block by mineralizing waste incineration flue gas and the aerated concrete block. The method comprises the following steps: mixing 30-40% of waste incineration slag, 10-15% of fly ash, 20-25% of steel slag, 5-10% of lime and 20-30% of cement according to the total mass fraction of 100% to prepare a mixture, adding water and a foaming agent into the mixture, and carrying out stirring, pouring and demolding treatment to prepare the aerated concrete block. And carrying out mineralization treatment on the aerated concrete block green body by utilizing waste incineration flue gas, so as to prepare the aerated concrete block. According to the method, the high-quality aerated concrete block sample can be obtained, co-processing and resource utilization of the waste incineration slag and the fly ash can be achieved, and the carbon emission reduction level of a waste incineration power plant can be improved. The aerated concrete block product can be applied to various building fields.

The invention provides an acetyl rectification residual liquid treatment method. The method comprises the following steps: uniformly laying a sawdust layer in a reaction container; saw dust and slaked lime are uniformly mixed and stirred to form a mixture, and the mixture is flatly laid on the saw dust layer in the reaction container; covering a layer of plate frame sludge on the uppermost layer of the reaction container; finally, the reaction container added with the auxiliary materials is moved to a closed reaction room and covered with a gas collecting hood, and a pipeline is connected to the gas collecting hood and connected into an induced draft system of an incinerator; inserting a waste liquid pipeline into the reaction container; and pumping the acetyl rectification residual liquid into the reaction container for auxiliary material reaction. According to the method, slaked lime is added for treatment before incineration, acid elements (sulfur, chlorine, phosphorus and the like) in the slaked lime can react with Ca < 2 + > to generate stable divalent salt, the divalent salt can be removed in an incineration hearth in a slag incineration mode during later incineration, and low-boiling-point sylvite or sodium salt is prevented from being formed and entering the rear end of an incineration system boiler to be scaled and blocked; and the stability and continuity of system production are greatly improved.

The invention discloses a method for green cooperative treatment of heavy metal gypsum residues and secondary zinc oxide smoke dust, and belongs to the field of solid waste resource utilization. The secondary zinc oxide smoke dust, the heavy metal gypsum residues, sodium salt and a carbonaceous reducing agent are mixed and roasted, slow cooling is conducted after roasting is completed, and roasted products containing calcium carbonate and large-size zinc sulfide crystals are obtained. In the roasting process, the volatilization rates of toxic and harmful elements of fluorine, chlorine and arsenic reach 96.66%, 96.26% and 96.44% respectively, the vulcanization rate of zinc reaches 97.87%, toxic and harmful gases of SO2 and CO2 are not generated, zinc oxide and calcium sulfate are directionally converted into large-size ZnS crystals and CaCO3 which are easy to recover through flotation, flotation separation of valuable metals is easy to realize, no solid waste or harmful gas is generated, and the method is green and environment-friendly.