124 results about "Dry basis" patented technology

The invention discloses a high-temperature-resistant lignite resin and a preparation method thereof, and belongs to the field of drilling fluids, and the preparation method comprises the following steps: obtaining and preparing an extracting solution containing humic acid from lignite; adding hydrochloric acid into the extracting solution, separating, filtering and precipitating, dissolving the precipitating in a sodium hydroxide solution to obtain a humic acid solution, adding formaldehyde and sodium pyrosulfite into the humic acid solution, preheating to 80 DEG C, adding the extracting solution, heating to 110-130 DEG C, continuously stirring, reacting for 1-3 hours, and cooling to 60 DEG C or below to obtain a reaction product; transferring a reaction product to a neutralizing tank, dropwise adding a NaOH solution, adjusting the pH value to 10-11, and controlling the temperature below 55 DEG C; the mass ratio of the dry basis mass of sulfonated humic acid to ECH is 1: (0.05-0.15), the temperature is kept at 45-55 DEG C, the stirring speed is 400-600 rpm, and the reaction is performed for 2-4 hours; meanwhile, a NaOH solution is continuously added, and the pH is kept at 10-11. Adjusting the pH value of the reaction liquid to 7-8 by using dilute HCl, and terminating the reaction; and obtaining a resin product.

The invention relates to the technical field of waste incineration, in particular to a method for estimating the heat value of garbage entering a furnace through the heat value of garbage entering the furnace, which comprises the following steps of: 1, establishing a function relationship between the garbage fermentation time and the garbage moisture content; 2, counting the influence of the garbage fermentation time on the garbage water content in the curve graph, and obtaining a first linear regression equation; step 3, establishing a function relationship between the garbage fermentation time and the total garbage weight; 4, the influence of the garbage fermentation time on the total weight of the garbage is counted in the curve graph, and a second linear regression equation is obtained; and 5, combining the first linear regression equation, the second linear regression equation, the calculation formula of the dry basis hydrogen element content and the garbage fermentation time correction coefficient into the calculation formula of the furnace entering garbage heat value, and finally obtaining the furnace entering and exiting garbage heat value. According to the method for estimating the heat value of the garbage entering the furnace through the heat value of the garbage entering the furnace, the heat value of the garbage entering the furnace can be accurately estimated, and a reliable basis is provided for rear-end combustion.

The invention discloses a waste incineration fly ash coupling sodium-based waste salt harmless treatment resource utilization method, which comprises the following steps: preparing household waste incineration fly ash and sodium-based waste salt according to a dry basis molar content ratio of (1-1.05): 1, uniformly mixing, and carrying out heat treatment at 450-500 DEG C to obtain an ash-salt mixture; washing with water to remove chlorine salt and heavy metal to obtain a chlorine salt solution and a mud cake; treating the chlorine salt solution to obtain industrial regenerated salt sodium chloride and potassium chloride; pulping the mud cake, adding a flotation agent for flotation to obtain flotation residues and industrial dihydrate gypsum, and preparing alpha gypsum from the industrial dihydrate gypsum by using a dry method; and after flotation, feeding residues into a grinding unit for grinding to obtain the desulfurizer. According to the method, the fly ash and the sodium-based waste salt are subjected to coupling treatment in one set of equipment, potassium chloride, sodium chloride, gypsum, calcium carbonate, calcium hydroxide and the like in the waste incineration fly ash and the sodium-based waste salt are effectively and respectively treated into products for all purposes, recycling of all valuable components is achieved, and the resource utilization value is high.

The invention discloses an amorphous silicon-aluminum microsphere carrier material and a preparation method thereof, and the amorphous silicon-aluminum microsphere carrier material comprises 50-80 wt.% of silicon dioxide and 15-40 wt.% of aluminum oxide based on the dry basis weight of the amorphous silicon-aluminum microsphere carrier material. The amorphous silicon-aluminum microsphere carrier material provided by the invention has a relatively high specific surface area and abundant large-size mesoporous channels, and is beneficial to improving the loading capacity of active components, improving the mass transfer and diffusion efficiency and reducing the diffusion limitation. The amorphous silicon-aluminum microsphere carrier material with a large specific surface area and abundant large-size mesoporous channels is prepared by changing crystal nucleation and growth modes of a product in the synthesis process, and meanwhile, the contents of silicon oxide and aluminum oxide can be flexibly regulated and controlled, so that different requirements of catalytic reactions in different fields can be met.

This invention provides processes and systems for converting biomass into high-carbon biogenic reagents that are suitable for a variety of commercial applications. Some embodiments employ pyrolysis in the presence of an inert gas to generate hot pyrolyzed solids, condensable vapors, and non-condensable gases, followed by separation of vapors and gases, and cooling of the hot pyrolyzed solids in the presence of the inert gas. Additives may be introduced during processing or combined with the reagent, or both. The biogenic reagent may include at least 70 wt %, 80 wt %, 90 wt %, 95 wt %, or more total carbon on a dry basis. The biogenic reagent may have an energy content of at least 12,000 Btu / lb, 13,000 Btu / lb, 14,000 Btu / lb, or 14,500 Btu / lb on a dry basis. The biogenic reagent may be formed into fine powders, or structural objects. The structural objects may have a structure and / or strength that derive from the feedstock, heat rate, and additives.

The present invention provides a unit dose laundry detergent composition comprising a) a surfactant; b) a water-soluble substrate comprising: − at least one film former; − a thickening agent; − at least one plasticizer; wherein the weight ratio between the at least one film former and thickening agent to the at least one plasticizer is between about 3.5:1 to about 5.5:1, preferably about 4.5:1, on dry basis; and c) a microcapsule composition comprising a polymer encapsulating at least a fragrance ingredient, wherein the at least fragrance ingredient is encapsulated in core-shell microcapsules comprising a core and a shell surrounding the core. The invention also provides a method of making, as well as the use of such a composition.

This invention provides processes and systems for converting biomass into high-carbon biogenic reagents that are suitable for a variety of commercial applications. Some embodiments employ pyrolysis in the presence of an inert gas to generate hot pyrolyzed solids, condensable vapors, and non-condensable gases, followed by separation of vapors and gases, and cooling of the hot pyrolyzed solids in the presence of the inert gas. Additives may be introduced during processing or combined with the reagent, or both. The biogenic reagent may include at least 70 wt %, 80 wt %, 90 wt %, 95 wt %, or more total carbon on a dry basis. The biogenic reagent may have an energy content of at least 12,000 Btu / lb, 13,000 Btu / lb, 14,000 Btu / lb, or 14,500 Btu / lb on a dry basis. The biogenic reagent may be formed into fine powders, or structural objects. The structural objects may have a structure and / or strength that derive from the feedstock, heat rate, and additives.

The invention provides a phosphate tailing solid-liquid separation filter aid and application. The filter aid is prepared from the following components in percentage by weight: 10 to 15 percent of water-soluble carbon nanotubes, 20 to 25 percent of maleic anhydride grafted ethylene glycol copolymer, 1 to 2 percent of nano titanium dioxide, 10 to 15 percent of C20-22 alcohol polyoxyethylene ether, 20 to 30 percent of cationic polyacrylamide, 5 to 10 percent of carboxymethyl cellulose, 2 to 5 percent of modified sodium silicate and 1 to 2 percent of nonylphenol polyoxyethylene ether. The filter aid disclosed by the invention is prepared into an aqueous solution with the concentration of 0.1-0.3%, and 50-110g / t of tailing dry basis is added in the flotation tailing thickening process, so that the concentration of thick ore pulp reaches more than 60%; before dense ore pulp is filtered, 50-100g / t of a filter aid of a tailing dry basis is added to act with the dense ore pulp, and then filter pressing work is performed, so that the flotation tailing solid-liquid separation effect is effectively improved, the single cycle time of filter pressing is shortened, the water content and viscosity of a filter cake are reduced, discharging is convenient, meanwhile, the service cycle of filter cloth can be prolonged, and the cleaning difficulty can be lowered; the method has important economic and environment-friendly significance.

The invention relates to the technical field of coal blending, and discloses a coking coal blending method. The method comprises the steps that target functions are determined according to the wet basis ratio, the moisture, the ash content, the volatile component, the wet basis unit transportation cost and the coke dry basis volatile component of each single-variety coal in multiple single-variety coals, and the target functions comprise raw material and storage cost functions; determining a first constraint condition according to the wet basis ratio and moisture of each single-variety coal and a quality function relationship between the single-variety coal and the mixed coal for each single-variety coal in the first influence parameter set; determining a second constraint condition according to the wet basis ratio and moisture of each single-variety coal and a quality function relationship between the single-variety coal and coke for each single-variety coal in a second influence parameter set; and under a plurality of constraint conditions, a meta-heuristic algorithm is adopted to optimize the target function so as to determine the wet basis ratio of each single-variety coal, and the plurality of constraint conditions comprise the first constraint condition and the second constraint condition. According to the method, the coking coal blending ratio can be efficiently and accurately determined.

This invention provides processes and systems for converting biomass into high-carbon biogenic reagents that are suitable for a variety of commercial applications. Some embodiments employ pyrolysis in the presence of an inert gas to generate hot pyrolyzed solids, condensable vapors, and non-condensable gases, followed by separation of vapors and gases, and cooling of the hot pyrolyzed solids in the presence of the inert gas. Additives may be introduced during processing or combined with the reagent, or both. The biogenic reagent may include at least 70 wt %, 80 wt %, 90 wt %, 95 wt %, or more total carbon on a dry basis. The biogenic reagent may have an energy content of at least 12,000 Btu / lb, 13,000 Btu / lb, 14,000 Btu / lb, or 14,500 Btu / lb on a dry basis. The biogenic reagent may be formed into fine powders, or structural objects. The structural objects may have a structure and / or strength that derive from the feedstock, heat rate, and additives.

The invention discloses a calcium-based composite material as well as a preparation method and application thereof. The preparation method comprises the following steps: cleaning and drying high-porosity straw biomass charcoal particles; mixing the biochar particles with calcium peroxide, and enabling the powdery calcium peroxide to enter pores of the biochar through vibration to obtain the biochar loaded with the calcium peroxide; mixing the calcium peroxide-loaded biochar particles and calcium hydroxide-containing minerals according to a certain proportion to obtain a calcium-based composite material; the calcium-based composite material is added into dried sludge, the adding amount accounts for 5-15 wt.% of the dry basis mass of the sludge, then a lignin binder is added, compression molding is performed, the calcium-based composite material is added in the pyrolysis process, the sulfur fixation rate can be larger than 60%, most of nitrogen is converted into ammonia, hydrogen cyanide is greatly reduced, synergistic sulfur fixation and nitrogen control in sludge pyrolysis are achieved, and the sulfur fixation and nitrogen control efficiency is improved. And the emission of pollution gas is reduced.

This invention provides processes and systems for converting biomass into high-carbon biogenic reagents that are suitable for a variety of commercial applications. Some embodiments employ pyrolysis in the presence of an inert gas to generate hot pyrolyzed solids, condensable vapors, and non-condensable gases, followed by separation of vapors and gases, and cooling of the hot pyrolyzed solids in the presence of the inert gas. Additives may be introduced during processing or combined with the reagent, or both. The biogenic reagent may include at least 70 wt %, 80 wt %, 90 wt %, 95 wt %, or more total carbon on a dry basis. The biogenic reagent may have an energy content of at least 12,000 Btu / lb, 13,000 Btu / lb, 14,000 Btu / lb, or 14,500 Btu / lb on a dry basis. The biogenic reagent may be formed into fine powders, or structural objects. The structural objects may have a structure and / or strength that derive from the feedstock, heat rate, and additives.

Processes and systems for converting biomass into high-carbon biogenic reagents that are suitable for a variety of commercial applications. Pyrolysis in the presence of an inert gas is employed to generate hot pyrolyzed solids, condensable vapors, and non-condensable gases, followed by separation of vapors and gases, and cooling of the hot pyrolyzed solids in the presence of the inert gas. Additives may be introduced during processing or combined with the reagent, or both. The biogenic reagent may include at least 70 wt %, 80 wt %, 90 wt %, 95 wt %, or more total carbon on a dry basis. The biogenic reagent may have an energy content of at least 12,000 Btu / lb, 13,000 Btu / lb, 14,000 Btu / lb, or 14,500 Btu / lb on a dry basis. The biogenic reagent may be formed into fine powders, or structural objects. The structural objects may have a structure and / or strength that derive from the feedstock, heat rate, and additives.

The invention relates to a low-carbon olefin auxiliary agent for heavy oil cracking and a preparation method and application thereof. The auxiliary agent contains an MFI molecular sieve, a phosphorus-aluminum binder, a macroporous alumina material, other inorganic binders and clay. On the basis of the dry base weight of the auxiliary agent, the content of the MFI molecular sieve is 10-75 wt%, the content of the macroporous alumina material is 1-30 wt%, the content of the phosphorus-aluminum binder in terms of oxide is 3-35 wt%, the content of the other inorganic binder in terms of oxide is 1-20 wt%, and the content of the clay is 0-60 wt%. The additive disclosed by the invention can effectively improve the yield of liquefied gas and propylene, promote cracking of heavy oil and reduce coke and oil slurry.

A method for accurately and efficiently desodium of high-sodium coal, comprising the following steps: detecting the moisture M of the high-sodium raw coal to be treated t , calculating the total sodium content M of the wet basis coal sample Na , converting the total sodium content M of the dry basis coal sample Na , determining the Na2O content in the ash of the high-sodium raw coal to be treated; selecting the key factors affecting the desodium rate; establishing the relationship model between the key factors and the actual desodium rate; according to the Na2O content in the ash and the requirements of the standard, the desodium rate of the high-sodium raw coal to be treated is converted, and the Re target value is obtained; the Re target value is brought into the relationship model, and the selection and value of the key factors of the high-sodium raw coal to be treated during desodium treatment are obtained respectively, and finally the actual leaching desodium of the high-sodium raw coal to be treated is carried out to obtain low-sodium coal meeting the requirements. The method can accurately desodium, reduce cost, energy consumption and corrosion and pollution generated in the production process, and has important significance for guiding large-scale application of high-sodium coal desodium.

The invention discloses a process for reducing rare earth loss in value adjustment of phosphorus-containing rare earth feed liquid by using an iron phosphorus removal and segmented value adjustment method, and belongs to the field of rare earth hydrometallurgy. The process comprises the following steps: preparing iron, heating, adding carbon for material settling, controlling REO concentration, performing primary value adjustment, performing solid-liquid separation, performing secondary value adjustment and performing solid-liquid separation again. The method comprises the following steps: adding an iron material of which the stoichiometric ratio is 1-2 times that of a phosphorus-containing rare earth feed liquid into the phosphorus-containing rare earth feed liquid, raising the temperature to 50 DEG C or above, adding a carbon precipitation material to regulate the acidity to 0.1-0.6 mol / L, controlling REO to be less than or equal to 200g / L, regulating the pH to 0.5-2, carrying out primary phosphorus removal, separating to obtain iron phosphate slag with low rare earth content, and regulating the pH of clear liquid to 4-5 to further remove impurities; according to the method, the rare earth content in the value-adjusted slag is remarkably reduced, the dry basis CeO content of the primary value-adjusted slag can be as low as 1.61%, the rare earth yield is increased, the occupied area of a slag warehouse is reduced, recycling of phosphorus resources is achieved, and the production cost is reduced.

The embodiment of the invention provides a preparation method of calcined coke. The preparation method comprises the following steps: providing petroleum coke powder coke with the particle size of less than 5mm and delimed coal with the particle size of less than 1mm; blending the petroleum coke powder coke and the deashed coal according to a dry basis weight ratio of (85-97): (3-15) to obtain mixed coke; adding a binder into the mixed coke, mixing, adding water, and mixing again to obtain a paste material; carrying out compression molding on the paste material to obtain a formed coke green block; and calcining the formed coke green block to obtain calcined coke. The calcined coke prepared by the embodiment of the invention is relatively good in quality, the problem that the granularity is relatively fine when the delimed coal is used for replacing the petroleum coke is solved, meanwhile, the problem that the amount of powdered coke of the petroleum coke is large can be solved, and the pressure of shortage of high-quality coke resources required by carbon production can be relieved.

The present invention relates to a process for the decarbonation of limestone, dolomite or other carbonated materials, said process comprising calcining particles of carbonated materials (6) in a reactor (8) of a first circuit (2) up to a temperature range in which carbon dioxide contained in the particles of carbonated materials (6) is released to obtain particles of decarbonated materials (16) and setting the dioxygen content supplied to the reactor (8) such that a first gas (14) exiting the reactor (8) and circulating in the first circuit (2), comprises at least 40% of CO2 by volume on a dry basis and less than 60% of CO2 by volume on a dry basis, while operating the reactor (8) under nominal condition, in particular non-starting condition.

The present invention provides a method and device for on-line determination of the specific enthalpy and dryness of the working fluid of a nuclear power saturated steam turbine, including: S1, obtaining relevant parameters and operation data of the saturated steam turbine; S2, determining the dry-base internal efficiency and dehumidification efficiency of each stage group in the turbine; S3, determining the isentropic enthalpy drop of the working fluid at the inlet and outlet of the stage group; S4, calculating the internal efficiency of the stage group under the current working condition, the effective enthalpy drop of the working fluid at the inlet and outlet, and the specific enthalpy and dryness of the working fluid at the outlet of the stage group; S5, determining the internal efficiency of the stage group under the current working condition; S6, repeating S4 to S5 until the difference between the specific enthalpies of the working fluid at the outlet of the stage group obtained from two adjacent calculations is less than a preset threshold, and then terminating the calculation to obtain the specific enthalpy of the working fluid before dehumidification; S7, obtaining the Bowman factor of the turbine by optimization according to the effective enthalpy drop of the stage group in S4; S8, solving the model of the inter-stage dehumidification device of the turbine to obtain the real-time values of the specific enthalpy and dryness of the working fluid of the turbine. The present invention solves the problem that the specific enthalpy and dryness of the working fluid of the turbine cannot be measured in real time.

The invention discloses a cassia seed anthraquinone extraction process parameter optimization method based on machine learning, particularly relates to the field of medicinal material extraction processes, and is used for solving the problem that the same group of extraction process parameters are difficult to stably reuse due to fluctuation of different batches of cassia seed raw materials. The method comprises the following steps: by taking a dry basis free anthraquinone content index as a unique batch characterization parameter, retrieving a batch similar sample set to generate an initial parameter group, performing short-time probe extraction under the initial parameter group, collecting a primary stage sample solution, calculating a dry basis release to miscellaneous peak ratio, and comprehensively analyzing to obtain a net release coefficient; an optimization mode mark is generated according to the net release coefficient to limit a process window and operable rule strength, then a regression prediction model is trained in the limited window to output a target parameter set, an executable target parameter set is determined, and stability and reusability of process parameter optimization are achieved.

The invention discloses tailing-based autoclaved aggregate as well as a preparation method and application thereof, and belongs to the technical field of building materials. The tailing-based autoclaved aggregate is prepared from the following raw materials in percentage by mass based on the total weight of the dry basis of the aggregate: 66-70% of composite tailing powder, 21-25% of calcium-based solid waste and 5-9% of a composite adhesive, wherein the composite tailing powder is composed of iron tailings and gold tailings according to the mass ratio of 3: 4-1: 1, the composite adhesive comprises calcium sulfate dihydrate, hydroxypropyl modified starch and sodium polyacrylate, and the mass ratio of the three components is (3-6): (1-1.5): (1-1.5). The coarse aggregate for the concrete is prepared by compounding the gold tailings and the iron tailings together and adopting the composite adhesive composed of the calcium sulfate dihydrate, the hydroxypropyl modified starch and the sodium polyacrylate through the static pressure molding and autoclaved curing process, so that the problem that in the prior art, when tailing slag is adopted as the concrete aggregate, the coarse aggregate is not easy to deform can be effectively solved. And the strength and durability of the concrete cannot be ensured.

A composition for increasing paper strength includes a dialdehyde-modified polyacrylamide reinforcing agent, a water-soluble compound that is soluble in approximately 5% by weight or more in water at approximately 25°C, and water. The water-soluble compound is typically present in a greater amount by weight than the reinforcing agent. The composition is formed by combining the reinforcing agent and the water-soluble compound in aqueous media, wherein, on a dry basis, the water-soluble compound is typically present in a greater amount than the reinforcing agent; drying the composition to form a powder or paste having a water content of less than approximately 10% by weight and that is stable after storage at approximately room temperature for approximately six months; and reconstituting the powder or paste by adding water thereto.The reconstituted composition can then be used to manufacture paper.

The invention relates to a fly ash quality source control method, specifically, the method comprises the following steps: firstly, selecting according to indexes of coal types to be blended, and in the aspect of inorganic minerals, the content of clay minerals is required to be greater than or equal to 65.0%, and the contents of minerals such as quartz respectively meet specific upper limits; in coal rock macerals, it is ensured that the content of inertinite is smaller than or equal to 20.0%; in the density components, the proportion of high-density components and ash is controlled; the dry basis ash content is less than or equal to 40.0%; and in the aspect of mineral intergrowth degree, the content of monomer carbon and rich intergrowth bodies is greater than or equal to 80.0%. Secondly, controlling the sulfur content, the moisture content, the pulverized coal uniformity index and the harmful heavy metal content of the blended coal; in addition, according to the operation load condition of the boiler, the characteristics of coal as fired are regulated and controlled, and efficient utilization of coal resources is achieved. According to the method provided by the invention, source regulation and control on the quality of the fly ash are realized, the stability and the applicability of the fly ash are remarkably improved, remarkable environmental benefits and social benefits are achieved, and a reliable technical support is provided for high-value utilization of the fly ash.

This invention, entitled "A Method for Detecting Raw Calcium Carbide in Calcium Carbide Slag," belongs to the field of chemical analysis and testing technology. The technical problem to be solved is that existing technologies suffer from poor accuracy in gas volume measurement, complex equipment, low safety, and inaccurate measurement results due to carbon dioxide interference. The key points of the technical solution are: taking a dry calcium carbide slag sample and determining its initial mass M0; drying the sample to constant weight under an inert atmosphere and determining its dry basis mass M1; mixing the sample with water under an inert atmosphere to react completely with residual calcium carbide; drying the mixture to constant weight under an inert atmosphere and determining its post-reaction mass M2; and calculating the residual calcium carbide content in the sample based on the mass difference between the dry basis mass M1 and the post-reaction mass M2, combined with the stoichiometric relationship of the reaction between calcium carbide and water.

The present invention relates to the technical field of solid waste resource utilization, and specifically to an in-furnace modifier for flue gas desulfurization circulating fluidized bed boiler ash, a preparation method and an application thereof. Calculated by dry basis mass percentage, the raw materials of the components of the modifier include 90% of steel slag, 1%-3% of rare earth tailings and 7%-9% of electric furnace phosphorus slag. The modifier prepared by the present invention can realize in-furnace modification of flue gas desulfurization circulating fluidized bed boiler ash, and the obtained modified ash has low water demand, SO3 content of less than 3.0%, and a strength activity index increased to more than 90%. The modifier of the present invention also has combustion-supporting and desulfurization and denitrification functions, can reduce combustion temperature, improve desulfurization and denitrification effects, and reduce the load of the flue gas desulfurization system. The raw materials of the present invention are all bulk solid waste and do not contain carbonate. The modifier itself does not decompose during use and does not emit CO2. It is green, low-carbon and environmentally friendly, and helps to promote ultra-low emissions of circulating fluidized bed boiler coal-fired power generation technology with significant economic effects.

The invention relates to the technical field of clean utilization of coal, in particular to a method for preparing high-concentration gasified coal water slurry from full coal slime and a special composite additive. The composite additive is formed by compounding a dispersing agent and a stabilizing agent according to the mass ratio of 1: 1-2: 1, the dispersing agent comprises sodium lignin sulfonate, sodium poly (naphthaleneformaldehyde) sulfonate and sodium polystyrenesulfonate, and the stabilizing agent comprises polyvinyl alcohol, polyacrylamide and carboxymethyl cellulose. The preparation method comprises the following steps: grading coal slime, and mixing with water; performing ultrasonic treatment on the slurry; and adding the composite additive accounting for 0.2-0.5% of the mass of the dry basis coal slime, and stirring to obtain the coal slime. Through the synergistic effect of ultrasonic treatment and the composite additive, the contradiction between high viscosity and poor stability during slurry forming of the coal slime is solved, and the prepared coal water slurry is high in concentration (greater than or equal to 64%), low in viscosity (600-1200 mPa.s) and good in stability (72 h drainage rate lt: 5%), and is particularly suitable for gasification raw materials.

The invention relates to the technical field of adsorption detection, and discloses an imidazolium resin adsorption kinetic parameter online identification method and system.The method comprises the steps that 1, flow, inlet and outlet water concentration, conductivity, temperature and pH value are synchronously collected, and apparent ion strength is obtained through the conductivity; step 2, performing mass balance based on the flow, the inlet and outlet water concentration and the resin dry basis mass to obtain a real-time track of the average adsorption capacity of the resin; step 3, constructing counter-ion coupling isothermal driving force and screening a quasi-balance section; 4, solving isothermal coupling parameters by combining a quasi-balance relational expression; 5, calculating an overall mass transfer coefficient point by point; step 6, simultaneously solving an outer membrane mass transfer proportionality coefficient and an in-hole mass transfer coefficient under two levels of flow; and step 7, constructing a core parameter group and outputting a consistency judgment result identifier. According to the method, online identification and consistency judgment of the adsorption thermodynamic parameters and the mass transfer kinetic parameters of the imidazolium resin are realized.

The embodiment of the invention provides a sampling interval determination method for coal as fired in a thermal power plant. The determination method comprises the following steps: acquiring coal quality information of coal as fired and parameter information of a sampling device; calculating primary subsample variance and dry basis ash content of coal as fired according to the coal quality information, and determining expected sampling precision of batch coal according to the dry basis ash content; determining the number of sampling units, and calculating the number of subsamples pre-sampled by each sampling unit by using the primary subsample variance of the coal as fired and the expected sampling precision of the batch coal; and determining the batch coal quantity, and obtaining a target sampling interval of the coal as fired by utilizing the number of the sub-samples pre-sampled by each sampling unit, the number of the sampling units and the parameter information. According to the sampling interval determination method for the coal as fired in the thermal power plant, the sampling representativeness can be improved, and the loss rate of the sampling device is reduced.

The invention provides a preparation method of a static pressure brick with high titanium gypsum mixing amount, and relates to the technical field of resource utilization of industrial solid wastes. The preparation method of the static pressure brick comprises the following steps: pretreating wet titanium gypsum until the moisture content is 16-20%, and then adding quicklime powder according to the mass ratio of 100: (2-3) for activating and aging to obtain an activated mixture; and then 68-72% of the activated mixture, 18-22% of limestone powder, 5-9% of cement and 1-3% of a curing agent are subjected to two-stage stirring, two-way static pressure forming and temperature-controlled and humidity-controlled curing. According to the method, acidity is effectively neutralized and gelation activity is excited through quick lime activation pretreatment, the contradiction between the high doping amount of the titanium gypsum and the high performance of the product is successfully solved by combining the synergistic effect of a quaternary system, and under the condition that the dry basis doping amount of the titanium gypsum is larger than 70%, the compressive strength of the product is larger than or equal to 33 MPa, the softening coefficient is larger than or equal to 0.85, and the heavy metal leaching concentration is far lower than the national standard limit value; the titanium gypsum has excellent mechanical properties, durability and environmental safety, and high-efficiency and high-value resource utilization of titanium gypsum is realized.

The present invention discloses a composition for increasing the strength of paper, the composition comprising: a dialdehyde modified polyacrylamide strengthening agent, a water-soluble compound and water, wherein the water-soluble compound is soluble in water at about 5% by weight or more at about 25°C. The water-soluble compound is generally present in a weight greater than the weight of the strengthening agent. The composition is formed by combining the strengthening agent and the water-soluble compound in an aqueous medium to form a composition, wherein the water-soluble compound is generally present in an amount greater than the strengthening agent on a dry basis, drying the composition to form a powder or paste having a water content of less than about 10% by weight and being stable after storage for about six months at about room temperature, and reconstituting the powder or paste by adding water thereto. The reconstituted composition can then be used for papermaking.