82 results about "Calcium magnesium" patented technology

The invention relates to the technical field of land improvement, in particular to an alginic acid type multifunctional long-acting soil conditioner and a preparation method and application of the alginic acid type multifunctional long-acting soil conditioner. The core particle layer comprises an organic material, nano silicon, calcium magnesium polyphosphate, magnesium hydride, ammonium borate, rhamnose and an adhesive, and the slow release layer comprises clay minerals and alginate; the mass ratio of the clay mineral to the alginate to the organic material to the calcium magnesium polyphosphate to the nano silicon to the magnesium hydride to the ammonium borate to the rhamnose to the binder is controlled within a certain range. The soil conditioner provided by the invention is good in slow release performance, can release effective components durably and slowly, and has multiple effects of improving soil quality, providing nutrition, promoting crop growth, improving resistance and the like; the problems of soil acidification, heavy metal pollution, micro-plastic pollution, pesticide pollution, antibiotic pollution and the like in agricultural production can be effectively solved.

The invention relates to a surfactant oil displacement composition suitable for a high-temperature and high-salt oil reservoir and application of the surfactant oil displacement composition. The surfactant oil displacement composition comprises the following components in percentage by mass: 0.10-0.50 wt% of a nitrogen-containing surfactant, less than 0.12 wt% of a sulfur-containing surfactant or hydrophobic salt and the balance of water. The surfactant oil displacement composition stably exists under the conditions that the temperature is 70-130 DEG C, the total mineralization degree of formation water is (10-25) * 10 < 4 > mg / L, and the concentration of calcium and magnesium ions is (1-2.5) * 10 < 4 > mg / L, and is kept clear without forming precipitates. The interfacial tension of the surfactant oil displacement composition can reach 10 <-2 > mN / m order of magnitude under high-temperature and high-salt conditions, the oil washing efficiency can reach 80% or above, and the surfactant oil displacement composition is suitable for improving the recovery efficiency of a high-temperature and high-salt oil reservoir in tertiary oil recovery.

The invention provides an organic-inorganic composite conditioner for improving a soil structure. Comprising the following raw materials in parts by mass: 100-150 parts of calcium, 20-50 parts of magnesium, 10-20 parts of polyglutamic acid, 0.5-2 parts of zinc, 2-4 parts of boron, 2-4 parts of iron, 100-150 parts of organic nitrogen, 150-200 parts of composite organic natural polypeptide amino acid, 50-70 parts of seaweed boron molybdenum, 50-80 parts of phosphorus calcium zinc liquid, 20-50 parts of seaweed calcium magnesium boron iron zinc and 100-120 parts of a plant nutrition preparation. The fertilizer is prepared from the following raw materials in parts by weight: 10-15 parts of high phosphorus and high potassium, 150-200 parts of organic waste compost, 50-80 parts of a synergist and 50-100 parts of a functional microbial agent. Through a unique chelation technology, polyglutamic acid and calcium and magnesium ions are fully fused to form an efficient medium trace element water-soluble fertilizer, calcium and magnesium are directly absorbed by a root system after flushing application, the calcium utilization rate is improved by 50% or above, and due to the fact that polyglutamic acid carries strong negative charges, fertilizer loss caused by rainwater leaching is effectively reduced, and the yield of the fertilizer is improved. And the water-retaining and fertilizer-retaining functions are more obvious when the fertilizer is used in sandy loam.

The invention relates to the technical field of salt mine collection, in particular to a stoping and filling device of a salt mine well and an anti-accumulation method of the stoping and filling device, the device comprises a butt joint well group, and the butt joint well group comprises a mud inlet well and a brine outlet well and is used for achieving backfilling of calcium magnesium mud and stoping of brine; the well logging system is used for detecting the shaft condition and the position of a cavity top plate; the pipe cutting equipment is used for cutting off the sleeve at a preset position below the top plate of the dissolving cavity; the sonar cavity measuring equipment is used for measuring the spatial form of the dissolving cavity; scale on the inner wall of the casing pipe is removed through a high-pressure water nozzle and steel wire brush composite cleaning technology, and pipe cutting position control accurate to the millimeter level is matched, so that a slurry conveying channel is unobstructed, the problem of pipeline blockage is solved, and production halt loss caused by blockage is avoided.

The invention relates to the field of fertilizers, and discloses a high-activity humic acid calcium-magnesium-silicon fertilizer which is prepared from humic acid, calcium oxide, magnesium sulfate, silicon dioxide and the like as raw materials, has a neutral pH value and does not cause damage to roots of crops. The fertilizer is high in nutrient utilization rate and widely applicable to various crops; according to the high-activity humic acid calcium magnesium silicon fertilizer provided by the invention, humic acid is added into the raw materials, so that the fertilizer efficiency utilization rate is greatly improved, and balanced absorption of crops is achieved; elements which are not absorbed in the soil are fully released, and the soil activity is improved, so that crops fully absorb various elements; by using the humic acid calcium magnesium silicon fertilizer, the soil structure can be effectively improved, and the water and fertilizer retention capability of the soil can be enhanced, so that the use amount of chemical fertilizer is reduced, and the agricultural production cost is reduced.

Disclosed is a cement admixture which contains a calcium carbonate-containing powder and one or more non-hydraulic compounds that are selected from the group consisting of γ-2CaO∙SiO2, 3CaO∙2SiO2, α-CaO∙SiO2, and calcium magnesium silicate.

The invention relates to a continuous reaction kettle for producing full-water-soluble nitro silicon calcium magnesium tablets, and relates to the technical field of reaction kettles.The continuous reaction kettle comprises a kettle body, an overflow cylinder, a flow blocking plate, a first stirring assembly, a second stirring assembly, a mixing assembly and a third stirring assembly, and the first stirring assembly comprises a driving part, a stirring shaft, a stirring plate and a first transmission part; the second stirring assembly comprises a driving rod, a first stirring impeller and a second transmission part, the mixing assembly comprises a first telescopic rod, the third stirring assembly comprises a second stirring impeller and a third transmission part, and a spoiler slides under the driving of a stirring shaft. The sliding spoiler drives the stirring plate, the first stirring impeller, the first telescopic rod and the second stirring impeller to act, the stirring plate turns over the mixed liquid, the first stirring impeller comprehensively stirs the mixed liquid, the first telescopic rod enables the mixed liquid to be impacted and mixed, and the second stirring impeller further stirs the mixed liquid. The powder and liquid mixing device has the effect of improving the overall mixing uniformity of powder and liquid.

The invention discloses a hydrothermal synthesis method of magnesium-rich silicate and application of the magnesium-rich silicate in acid soil improvement, and belongs to the technical field of soil improvement. According to the method, magnesium chloride, calcium chloride and sodium silicate serve as raw materials, calcium magnesium silicate gel is generated through a hydrothermal reaction, a high-purity product is obtained through freeze drying after impurities are removed through multiple times of washing, and a surfactant can be added to optimize the material morphology and the specific surface area and improve the acid soil effect. The obtained material is hydroxyl calcium magnesium silicate with the molar ratio of calcium to magnesium being (1: 3)-(1: 5), and has a porous nanosheet structure. According to the invention, silicate is released to neutralize the acidity of soil, calcium and magnesium ions are released to fix exchangeable aluminum ions in acid soil, magnesium ions and silicate are released to improve the microbial activity of soil and promote the formation of a soil aggregate structure, and the problems of easy acid regurgitation, soil hardening and the like of a traditional lime acid soil improvement material are solved; the soil conditioner is suitable for rapid acid reduction and long-acting acid control of strongly acidic soil (the pH is more than or equal to 4.0 and less than or equal to 5.0).

The utility model belongs to the field of anti-scale and anti-corrosion pipelines, and particularly relates to a special anti-scale and anti-corrosion pipeline suitable for a high-concentration calcium magnesium salt ion solution, which comprises an anti-scale and anti-scale water treater, a column body of the anti-scale and anti-scale water treater is movably connected with a male connecting ring, the end part of the male connecting ring is clamped with a female connecting ring, and the female connecting ring is connected with the column body of the anti-scale and anti-scale water treater. A connecting column is fixedly connected to the frame body of the male connecting ring, an adjusting piece is fixedly connected to the end of the connecting column, a connecting rod is fixedly connected to the middle of the adjusting piece, and a fixing frame is fixedly connected to the end of the connecting rod. And when the scale prevention and removal type water treater needs to be obliquely mounted, the adjusting piece can be flexibly adjusted to be in an inclined state so as to adapt to the mounting of the scale prevention and removal type water treater.

The invention provides a carbonate rock discrimination method and system based on element logging analysis, and the method comprises the steps: carrying out the element spectrum analysis of a sample which is determined to be carbonate rock, and obtaining the contents of Ca and Mg elements; establishing a carbonate rock identification model, wherein the carbonate rock identification model comprises a carbonate rock classification index calculation model, a calcium-magnesium index calculation model and a carbonate rock discrimination model; inputting the obtained Ca and Mg element contents into a carbonate rock discrimination model, and obtaining a carbonate rock classification index value and a calcium magnesium index value in the carbonate rock discrimination model through a carbonate rock classification index calculation model and a calcium magnesium index calculation model; and the carbonate rock discrimination model judges the lithology of the carbonate rock sample according to the intersection interval of the carbonate rock classification index value and the calcium-magnesium index value. The carbonate rock classification and identification model is established through the element features, then on-site quantitative rapid and accurate identification of the carbonate rock is guided, and the problem of on-site carbonate rock lithology identification is solved.

The present invention discloses an organic compound fertilizer for promoting the absorption and utilization of nitrogen by continuous cropping peanuts. Its raw materials include: urea, humic acid, potassium nitrate, calcium magnesium nitrate, earthworm manure, ammonium molybdate, magnesium silicate, vitamin E, highly adsorbent activated carbon, brown sugar, compound microbial inoculum, polyaspartic acid and water; the mass ratio of urea, humic acid, potassium nitrate, calcium magnesium nitrate, earthworm manure, ammonium molybdate, magnesium silicate, vitamin E, highly adsorbent activated carbon, brown sugar, compound microbial inoculum, polyaspartic acid, water is 10 - 20:5 - 15:2 - 10:2 - 10:4 - 10:1 - 5:1 - 2:0.1 - 1:5 - 15:1 - 5:2 - 6:1 - 2:110 - 320. The present invention also discloses a preparation method of the above organic compound fertilizer for promoting the absorption and utilization of nitrogen by continuous cropping peanuts.

The present application relates to the technical field of fertilizer, and especially relates to a biological coupling powder rich in mineral nutrition and a preparation method thereof, which comprises the following steps: activating calcium magnesium potassium sulfate to obtain activated calcium magnesium potassium sulfate, and determining whether the activation is qualified; in response to the qualified activation, mixing the activated calcium magnesium potassium sulfate with organic raw materials, determining whether the affinity and dissociation of the activated calcium magnesium potassium sulfate and the organic raw materials meet the standard based on the increment of water-soluble calcium and the pH change rate; in response to the qualified affinity and dissociation, determining the balance treatment of the mixture, and obtaining fermentation substrate; spraying a compound microbial inoculum to the fermentation substrate in a preset stage for solid-state aerobic fermentation treatment, determining the addition of the compound microbial inoculum based on the change rate of water-soluble calcium content, and obtaining fermentation product; aging the fermentation product, determining whether to extend the aging time based on the humification coefficient, and drying the fermentation product to obtain the biological coupling powder. The present application improves the biological coupling property of mineral nutrition and organic raw materials.

The invention relates to talaromyces pseudomonas hzt-3'as well as a preparation method and application of the talaromyces pseudomonas hzt-3 ', and belongs to the technical field of application of microorganisms. The strain is preserved in the China Center for Type Culture Collection, the preservation number of the strain is CCTCC NO: M 20251797, and the strain is classified and named as (Talaromyces pseudomonas hzt-3 '). The method comprises the following steps: collecting moss and vegetation soil samples from basalt, diabase and dolomite; diluting bacterial colonies in the sample, and separating and purifying the bacterial strains by using a Czapek culture medium; anorthite and serpentine are used as inorganic salt sources for strain screening, and strains which grow stably and have a good leaching effect on calcium magnesium silicate minerals are obtained; the strain is applied to efficient leaching of anorthite, serpentine and wollastonite, and compared with a sterile control group, the effect of improving the leaching rate of calcium and magnesium ions is remarkable. The method solves the problem that the reaction rate of mineral sequestration carbon dioxide is slow due to the fact that ions in natural silicate minerals are difficult to leach, and has great significance.

The invention discloses a processing method of a medium trace element fertilizer containing rare earth, belongs to the technical field of fertilizer processing, and aims to solve the problem that the efficacy of the fertilizer cannot be fully exerted due to the fact that the comprehensive utilization and processing method of rare earth silicon calcium magnesium is not perfect. Meanwhile, silicon, calcium and magnesium powder with the ratio of 1: 0.5: 0.5-1: 1: 1 is prepared, then mixing, calcining and granulation are conducted, and the processing operation of the fertilizer is completed. The processing method can fully utilize the synergistic effect of elements such as rare earth, silicon, calcium and magnesium, the fertilizer efficiency of the fertilizer is improved, plant growth is promoted, the crop yield and quality are improved, and through the reasonable calcining technology, the production cost is reduced. Various mineral components are fully reacted to form a stable compound, the stability and the long-term effect of the fertilizer are improved, the additive added in the processing process can improve the dispersity and the stability of the fertilizer, the fertilizer is convenient to apply and store, and the method is simple in process, easy to operate and suitable for large-scale production.

A water hardness test paper includes a carrier and a water hardness detection substance provided on the carrier, wherein the water hardness detection substance includes a color developer which includes one or more of calcium magnesium reagent, chrome black T, calcium carboxylic acid, azo arsine 1, and azo arsine 3.

The utility model relates to the technical field of chelating tanks, and discloses a poly (calcium magnesium glutamate) constant-temperature chelating device which comprises a tank body, a motor is fixedly connected to the middle of the top surface of the tank body, a stirring rod is fixedly connected to the output end of the motor, a U-shaped plate is fixedly connected to the outer side of the stirring rod and makes contact with the inner wall of the tank body, and the stirring rod is fixedly connected to the inner wall of the tank body. A water tank is fixedly connected to the outer side of the tank body, a heating pipe is fixedly connected to the interior of the water tank, and an auxiliary assembly is arranged on the outer side of the water tank. According to the device disclosed by the utility model, polyglutamic acid and calcium and magnesium elements are added into the tank body, the driving motor can drive the stirring rod and the U-shaped plate to stir the polyglutamic acid and the calcium and magnesium elements, and then water in the water tank can be heated by driving the heating pipe, so that the tank body and the polyglutamic acid and the calcium and magnesium elements in the tank body can be heated; and therefore, the uniformity of temperature distribution can be improved, and the final quality of a product is improved.

The invention relates to the technical field of tobacco, in particular to a nicotine product and a preparation method thereof. The nicotine product comprises porous ceramic particles and nicotine or a salt thereof loaded on the porous ceramic particles, the porous ceramic particles are made of one or more of calcium magnesium silicate and aluminum magnesium silicate; the porous ceramic particles have first gradient pores, second gradient pores, and third gradient pores. The nicotine loading rate is high.

The invention belongs to the technical field of inorganic non-metallic materials, and particularly relates to spinel and calcium aluminate multiphase aggregate as well as a preparation method and application thereof. The method comprises the following steps: 1) mixing calcium magnesium aluminate fine powder and calcium oxide source fine powder to obtain mixed powder I; 2) adding a binder into the mixed powder I, and mixing to obtain a mixture II; (3) carrying out compression molding on the mixture II, and then sequentially carrying out drying and heat treatment; and 4) crushing the sample subjected to heat treatment to obtain the spinel and calcium aluminate multiphase aggregate. The spinel and calcium aluminate complex-phase aggregate provided by the invention has the advantages of small apparent porosity and lower melting point of an internal phase. In the service process of the material, the aggregate can give full play to the capabilities of phase change heat storage and micro-crack self-repairing.

The invention belongs to hydrogenation-rich modified materials, and particularly relates to a hydrogenation-rich modified material as well as a preparation method and a use process thereof. The catalyst is prepared from the following raw materials in parts by weight: 10-60 parts of polyethylene glycol and 40-90 parts of a hydrogen source, the hydrogen source is one or a combination of more of calcium hydride, magnesium hydride, calcium magnesium hydride, elemental calcium and calcium magnesium alloy, or platinum-loaded titanium dioxide. The hydrogenation-rich modified material can modify an additive, the preparation method is convenient to operate, the use mode is simple and efficient, the utilization rate is high, the hydrogenation-rich modified material can be applied to the fields of medicine, food and cosmetics, the use conditions of inherent food additives, cosmetic additives and the like are not affected, and the modified additive can produce hydrogen after being used in oral administration, smearing and other modes; the product is easy to absorb, has no irritation to intestinal tracts, has no chemical residues influencing human health, and has strong practicability.

The present application relates to big data analysis technical field, specifically to a kind of mineral fertilizer production quality control method based on big data, comprising the following steps: reading phosphorus ore diphosphorus pentoxide content and potassium ore impurity calcium magnesium content, generating incoming material quality correlation coefficient set, the numerical values in the incoming material quality correlation coefficient set are weighted combination mapping, and incoming material comprehensive characteristic parameter matrix is generated.The present application introduces finished product granulation pulverization rate, acid-base neutralization consumption determination value into the inversion process of significant dynamic threshold, so that front-end raw material fluctuation and middle section operation fluctuation can accept the reverse check of end quality boundary, thereby obtaining stronger quality causal through capability, abnormal positioning capability and interception specificity, which can not only compress the path length of raw material difference transmission to finished product defect, but also reduce the misjudgment risk caused by empirical threshold, and can also enhance the identification accuracy of batch fluctuation, working condition drift and quality instability precursor.

The application discloses a method for extracting effective components from corn soaking water, which comprises the following steps: adsorbing phytic acid in the corn soaking water through a resin, obtaining effluent, removing zein and calcium magnesium salt from the effluent to obtain a treatment liquid, filtering and concentrating the treatment liquid through a reverse osmosis membrane to obtain a first cut-off liquid, adding hydrochloric acid into the first cut-off liquid to adjust the pH to 2.0-2.5, vacuum concentrating until crystals are precipitated, closing the vacuum and cooling to crystallize to obtain a KCl crude product and a first filtrate, and distilling the first filtrate to obtain a lactic acid solution and a distillation dry substance. The method effectively separates potassium chloride crude product, the lactic acid solution and the distillation dry substance from the corn soaking water, fully extracts, separates and utilizes the effective components in the corn soaking water, and improves the comprehensive economic benefits of a corn processing industrial chain.

The utility model discloses a reverse pole cathode self -cleaning type calcium magnesium scale layer removal device, including treatment pool and device bottom, the inside of treatment pool includes filter tank and descaling pool, be provided with cathode plate in the inside of descaling pool, one side of cathode plate is provided with anode plate, is provided with cleaning mechanism between cathode plate and anode plate, one side of cleaning mechanism is connected with the connecting support, the cleaning mechanism includes the cleaning scraper of swing joint in the inside of cleaning mechanism, the both sides swing joint of cleaning scraper have the cleaning push -plate, the rotating rod is passed through and is arranged to cleaning mechanism, one end of rotating rod is connected with synchronous mechanism, one side of treatment pool is provided with control panel. The utility model discloses through setting rotating rod can through drive gear and drive cleaning push -plate to move on cleaning scraper, so that the inside both sides of cleaning push -plate and hold in the scraping block of cleaning scraper surface scrape the surface of cleaning scraper, prevent its surface residual cleaning when residual stain influence subsequent cleaning.

The invention belongs to a system and a process for co-producing potassium nitrate and calcium magnesium nitrate fertilizers by using a nitrophosphate fertilizer device. Comprising a powdered rock phosphate magnesium-calcium pre-removal unit, the powdered rock phosphate magnesium-calcium pre-removal unit is connected with a primary acidolysis decalcification unit, the primary acidolysis decalcification unit is connected with a nitrophosphate fertilizer production unit through a secondary decalcification and potassium nitrate separation unit, and the secondary decalcification and potassium nitrate separation unit is further connected with a potassium nitrate preparation unit; a liquid phase channel in the ground phosphate rock magnesium-calcium pre-removal unit and a solid phase channel in the primary acidolysis calcium removal unit are connected with the calcium magnesium nitrate fertilizer preparation unit; the ground phosphate rock magnesium-calcium pre-removal unit at least comprises a magnesium removal tank, the top of the magnesium removal tank is connected with a ground phosphate rock channel and a first nitric acid pipeline, an outlet of the magnesium removal tank is connected with a filter press, a liquid phase outlet of the filter press is connected with the primary acidolysis calcium removal unit, and a solid phase pipeline of the filter press is connected with the calcium magnesium nitrate fertilizer preparation unit; the method has the characteristics of improving phosphorite utilization rate and product added value.

1. The name of the design product: packaging box (famotidine calcium magnesium chewable tablets). 2. The use of the design product: for product packaging. 3. The design points of the design product: in the combination of shape and pattern. 4. The picture or photo that best indicates the design points: front view.

The invention provides an anti-calcium-magnesium salt type polyacrylamide and a preparation method thereof, the preparation method comprises the following steps: (1) adding an acrylamide monomer, a hydrophobic monomer, a sulfobetaine type dispersant, an anti-salt monomer, a dissolution promoter and a coagulation inhibitor into water, uniformly mixing, and initiating a reaction in the presence of a composite initiator to obtain a first reaction product solution; (2) adding a thio monomer and an acid catalyst into the first reaction product solution for reaction to obtain a second reaction product solution; and (3) heating the second reaction product solution, adding a high-temperature initiator, reacting to obtain a white gel product, granulating the white gel product, adding a hydrolytic agent and a micro-crosslinking agent, and reacting to obtain the calcium-magnesium salt resistant polyacrylamide. The anti-calcium-magnesium salt type polyacrylamide obtained in the invention can still maintain the extended conformation and stable network structure of a molecular chain in high-content calcium-magnesium salt water, and shows excellent salt resistance.

The present application relates to a kind of high salt high calcium magnesium wastewater and miscellaneous salt disposal system and method, by oxidation, adsorption, adjustment, filtration purification after high salt high calcium magnesium wastewater, into nanofiltration unit 1 and separate out polyvalent salt, nanofiltration concentrated water is removed by gypsum crystallization method and ammonium carbonate method, after purification, into nanofiltration unit 2 and separate, nanofiltration concentrated liquid is reacted with after pyrolysis miscellaneous salt and forms gypsum, solution evaporation crystallization produces sodium chloride and gypsum, sodium chloride enters the production of sodium carbonate salt in alkali unit, and the production of ammonia-containing mother liquor is recycled back to alkali unit by hot ammonia extraction, and evaporation crystallization mother liquor is recycled by hot ammonia, and forms ammonium carbonate with CO2 to soften nanofiltration unit 1 concentrated liquid, the water produced by nanofiltration unit 1 and 2 is sequentially passed through concentration unit 1 and 2, and the concentrated liquid containing sodium chloride is passed into the alkali unit to produce alkali, and the gypsum produced by the system is dehydrated after purification to form gypsum product. The present application solves the problem of high-salt high-hardness wastewater and miscellaneous salt disposal, and has the advantages of low energy consumption and strong economy.

The application discloses a kind of ascorbic acid chelated calcium magnesium water-soluble fertilizer compatible with phosphate fertilizer and a preparation method thereof.The method comprises adding EDTA accelerator to ascorbic acid calcium magnesium solution to promote reaction until the reaction solution is clear, drying the reaction solution to obtain ascorbic acid chelated calcium magnesium water-soluble fertilizer compatible with phosphate fertilizer.The chelated calcium magnesium prepared by the method has a solubility of greater than or equal to 60 g, and a total calcium magnesium content of greater than or equal to 10%, which meets the technical index requirements of the industry standard NY2266-2012 for water-soluble fertilizer solid products.Meanwhile, due to the synergistic chelation of ascorbic acid and EDTA, a mixed solution obtained by dissolving 1 g of the ascorbic acid chelated calcium magnesium water-soluble fertilizer compatible with phosphate fertilizer, 5 g of potassium dihydrogen phosphate and 100 ml of water can remain clear for more than 8 hours, greatly improving the compatibility with phosphate fertilizer.

The present invention relates to X-ray amorphous and hollow calcium magnesium fluoride phosphate particles. The X-ray amorphous and hollow calcium magnesium fluoride phosphate particles have a mean diameter ranging from 50 to 500 nm and comprise a respective shell. The respective shell comprises 15-30 wt% calcium, 50-65 wt% phosphate, 4-8 wt% magnesium, 1-10 wt% fluoride, and the balance is water.

The utility model discloses an anti-wear high-calcium magnesia-calcium brick, which relates to the technical field of magnesia-calcium bricks, and comprises a first magnesia-calcium brick main body and an anti-wear layer, a second magnesia-calcium brick main body is arranged outside the first magnesia-calcium brick main body, reinforcing ribs are additionally arranged inside the first magnesia-calcium brick main body, a sound absorption layer is arranged outside the first magnesia-calcium brick main body, and the second magnesia-calcium brick main body is arranged outside the anti-wear layer. A sound absorption layer is arranged outside the first magnesia-calcium brick main body, sound absorption through holes are formed in the sound absorption layer, a thermal insulation layer is arranged outside the sound absorption layer, a wear-resistant layer is additionally arranged outside the thermal insulation layer, an impermeable layer is arranged outside the wear-resistant layer, and drainage strips are arranged in the impermeable layer; butt joint grooves are formed in the two sides of the interior of the second magnesia-calcium brick body. According to the wear-resistant high-calcium magnesium-calcium brick, through the arrangement of the wear-resistant layer, the problem that the service life of most magnesium-calcium bricks is shortened due to poor corrosion resistance and wear resistance in the using process of the magnesium-calcium bricks is solved, and the overall practicability of the magnesium-calcium bricks is conveniently improved.

The invention discloses a growth method of calcium-magnesium-zirconium doped gadolinium-gallium garnet, and relates to the field of crystal material preparation, and the method comprises the following steps: (1) raw material preparation and pretreatment: selecting Gd2O3, Ga2O3, CaCO3, MgO and ZrO2 powder with the purity greater than or equal to 99.99%, dividing the powder into a core layer, a transition layer and a surface layer according to a stoichiometric ratio to prepare a gradient doped precast block, and roasting the gradient doped precast block at 800 DEG C for 4 hours for later use; (2) equipment transformation and debugging: transforming the Czochralski growth furnace into an upper and lower independent double-temperature-zone structure, equipping a PID intelligent temperature control system, and debugging to form a stable temperature field with an axial temperature difference of less than 5 DEG C / cm and a radial temperature difference of 2 DEG C; through a gradient synergistic doping technology, crystal lattices of the inch SGGG crystal are effectively improved, the mismatching rate of the inch SGGG crystal and a high-bismuth iron garnet epitaxial layer is reduced, the problem of interface defects caused by lattice mismatching of a traditional GGG crystal is solved, the quality of the epitaxial layer is remarkably improved, and growth and preparation of the large-size, low-defect and high-uniformity SGGG crystal are achieved.