32results about How to "Good tempering" patented technology

The invention provides a metallurgical melting reduction production method for titanium containing slag and belongs to the field of non-blast furnace ironmaking and resource comprehensive utilization. The metallurgical melting reduction production method comprises the steps that (1) vanadium containing slag or vanadium-titanium containing steel slag is added into a melting reaction device, reducing agents are sprayed into the melting reaction device while iron containing materials and/or vanadium-titanium containing materials are sprayed into the melting reaction device with oxidizing gas, reaction mixed slag is obtained, heated to be in a molten state and monitored in real time, and the situations that the reaction slag temperature is within the set range, and the reaction slag alkalinity CaO/SiO2 ratio is 0.6-2.0 are ensured at the same time through adjustment and control, so that the reaction slag is fully mixed, and reduced and oxidized slag is obtained; and (2) separating and recycling are conducted. According to the metallurgical melting reduction production method for the titanium containing slag, the recycling rate of metallic iron is 92%-96%; heat compensation is not needed or a small quantity of heat compensation is needed; the operability is high; the production cost is low; no solid waste is produced in the whole process; the reaction conditions are mild; energy saving and emission reduction are achieved; and the metallurgical melting reduction production method is an environment-friendly metallurgical process.

The invention relates to a glass having SiO₂, Na₂O and CaO as main components, which comprises two amorphous phases having different compositions, one of the two phases being in the form of inclusions dispersed in the volume of the other phase and comprising crystalline particles. Such a glass has good mechanical strength, in particular good resistance to scratch propagation and allows improved tempering. This glass furthermore has a pleasant aesthetic appearance.

The invention provides a duck fattening feed and a preparation method thereof, aiming at the condition that current cherry valley ducks are relatively low in fat deposition generally after being fed by a feed. The duck fattening feed comprises the following raw materials in parts by weight: 40-60 parts of corns, 10-30 parts of wheat, 3-8 parts of bean meal, 2-6 parts of cottonseed meal, 2-6 parts of flour, 0-6 parts of wheat bran, 2-5 parts of corn gluten meal, 3-6 parts of rapeseed meal, 0-6 parts of corn distillers grains, 2-5 parts of lard oil, 0.2-0.6 part of lysine hydrochloride, 0.05-0.2 part of methionine, 0.05-0.2 part of threonine, 0.2-0.4 part of table salt, 0.1-0.3 part of various vitamins, 0.6-1.5 parts of rock flour, 0.6-1.2 part of calcium hydrophosphate, 0.1-0.3 part of sodium bicarbonate and 0.2-0.5 part of a premix. The duck fattening feed is high in energy level, high in content of starch and high in content of saturated fatty acid, and is capable of remarkably improving the carcass fat deposition effect of the cherry valley ducks, greatly reducing the production cost of roast ducks, and improving the production performance of the cherry valley ducks.

The invention discloses a method for producing low-iron high-pervious self-cleaning ultra-white rolling glass. Prepared materials comprise components in parts by mass as follows: 68% to 75% of SiO2, 9% to 15% of Na2O, 8% to 12% of CaO, 1% to 3% of Al2O3 and 2% to 5% of MgO, a compound strong oxidant accounting for 0.1% to 1.0% of the prepared materials is added, iron contents of the materials are controlled to be within 50ppm, and the rolling glass is formed through mixing, melting, rolling, annealing, cut loading, coating, tempering and coating curing. According to the method, the iron contents of the materials and the mass ratio of the materials are controlled, the strong oxidant is added, glass sheets are manufactured by a natural gas total oxygen combustion technology, and photoelectric properties and physical properties of the rolling glass can be improved remarkably after two times of coating, tempering and curing, so that the sunlight transmittance is improved by 2.5% to reach more than 94.5%, the photoelectric conversion efficiency of the rolling glass can be improved, a self-cleaning function is provided, and industrial application of solar ultra-white rolling glass is facilitated.

The invention relates to a preparation process for a fattening cream river crab compound feed and belongs to the technical field of agricultural breeding. The compound feed is prepared from the following materials: high protein flour, peeled expanded bean pulp, fermented bean pulp, fish meal, chicken powder, shrimp powder, sleeve-fish paste, phospholipid oil, soya-bean oil, fish oil, spirulina, choline chloride, zeolite powder, monocalcium phosphate, table salt, yeast hydrolysate, antibacterial peptides, chitosan compound vitamins, compound organic microelements and astaxanthin. By roughly crushing the materials first and then carrying out ultraomicro crushing on the materials, the materials are fine enough. The materials are mixed in grade and can be fully mixed, so that the fusing degreeof the powder and the oil is improved, and follow-up tempering and expanding operations are facilitated. The longer the tempering time is, the longer the contact and mix time of vapor and the powderyfeed is, and the more the added vapor amount is, the more favorable the curing of the river crab feed is. The tempered materials are extruded and expanded, so that starch is fully cured, the proteinsare deteriorated, the antinutritional factors in different feed raw materials are deactivated, and insects are killed and bacteria are sterilized, and therefore, the digestive absorption utilizationof the feed by the river crabs is improved, the intestinal tract irritation is reduced, diseases are reduced, and the water quality is improved.

The invention discloses a system and method for simultaneously removing sulfur trioxide, ammonia gas, and fly ash in flue gas after SCR. A rotary air preheater and an auxiliary flue gas conditioning system are taken as the basis of the system. The system mainly comprises the rotary air preheater, a flue gas online monitoring system, the auxiliary flue gas conditioning system, an electrostatic deduster, a flue gas deep cooler, and a pre-posed air heater. The heat exchange area of the rotary air preheater is reduced, the temperature of the flue gas outlet of the rotary air preheater is raised tothe dew point temperature of ammonium bisulfate or so, ammonia gas and sulfur trioxide in flue gas are used to modify flue gas; at the same time, the auxiliary flue gas conditioning system can adjustand optimize the flue gas conditioning process in real time according to the flue gas information provided by the flue gas online monitoring system. The provided simultaneous removal method can improve the dedusting efficiency of an electric deduster, is capable of removing sulfur trioxide and SCR escaped ammonia gas in flue gas, and solves the problem that a downstream heat-absorbing surface isobstructed and corroded by deposited ash.

The invention discloses a conditioning device for feed production, and relates to the technical field of feed production conditioning. The invention aims to solve the problem of fusion degree betweenmixed materials of feed. The device specifically comprises a first workbench and a second workbench, wherein four mounting blocks are fixed to the outer wall of the top of the second workbench throughbolts; one hardening and tempering cylinder is fixed to the outer walls of the tops of the four mounting blocks through limiting plates, and heating rings distributed at equal intervals are connectedto the outer wall of the circumference of the hardening and tempering cylinder in a sleeving mode; one end of the hardening and tempering cylinder is sleeved with a feeding cylinder through a sealingring, supporting plates are welded to the outer walls of the two sides of the feeding cylinder, the same feeding box is fixed to the outer walls of the opposite sides of the two supporting plates through bolts, and a box cover is arranged on the outer wall of the top of the feeding box; a motor is fixed to the outer wall of one side of the top of the second workbench through a support, wherein the output end of the motor is connected with a mounting shaft through a coupler, and the mounting shaft is inserted into the feeding cylinder. According to the invention, a problem of caking of the mixed material in the mixing and stirring process is effectively avoided.

The invention discloses low-magnesium superwhite glass. The low-magnesium superwhite glass comprises the following components in percent by mass: 65-75% of SiO2, 1-4% of Al2O3, 11-17% of Na2O, 7-13% of CaO, 0-1.5% of MgO and 0-2% of K2O. Compared with the prior art, the low-magnesium superwhite glass has the advantages and effects as follows: due to adjustment of the MgO content to 0.2-0.5%, reduction in the weatherability of the glass due to use of high-content MgO for controlling the crystallization speed of the glass is avoided; due to increase of Al2O3 content, the crystallization trend is reduced, and the chemical stability of the superwhite glass is improved; due to adjustment and control of the alkali metal content, the expansion coefficient of the glass is increased and the glass is easily tempered; due to decrease of the liquid phase temperature, the adaptability to floating production of the glass is higher.

The invention belongs to the field of medicines and particularly relates to a production method for a corncob glycosyl medicinal carrier and a production system. The production method for the corncobglycosyl medicinal carrier, provided by the invention, comprises the following steps: (1) carrying out rolling crushing; (2) carrying out coarse crushing; (3) carrying out vibratory screening; (4) carrying out micro-powdering; (5) carrying out quenching and tempering; (6) carrying out granulating. Xylon can be separated from corncob integers so as to prepare the high-quality glycosyl carrier whichis good in fluidity, high in adsorption force, proper in pH value and good in palatability and can be completely degraded. The production system provided by the invention comprises double-row rollers, a coarse crusher, a vibratory screen and a fine crusher which are sequentially connected; the production system can be used for separating the xylon from the corncob integers and has the characteristic of high production efficiency.

The invention relates to a tempered glass production line, and belongs to the technical field of tempered glass production, the tempered glass production line comprises a tempering furnace, a conveying roller used for conveying glass is arranged in the tempering furnace, the tempered glass production line further comprises a storage box used for storing the glass, and the storage box is located on the conveying roller; a feeding port and a discharging port are formed in the face, in the conveying direction of the conveying rollers, of the storage box, a lifting device is arranged in the storage box, and the lifting device is used for driving glass in the storage box to be in a suspended state. A suspension part is arranged in the toughening furnace and is used for driving the storage box entering the toughening furnace to be in a suspended state. The glass softening agent has the advantage of improving the glass softening effect.

A sludge reaction tank having a high efficiency is disclosed. The reaction tank includes a sludge reaction tank main body, main stirring plates, slide plates and a dehydration case. The lower end of the tank main body is connected to a motor through a motor fixing seat. A main rotation shaft at the upper end of the motor movably penetrates the middle of the lower surface of the tank main body. Sludge in the dehydration case enters the slide plates after dehydration and is heated and dried, and the sludge uniformly slides downward on the surfaces of the slide plates and falls down after passingthrough three groups of the slide plates so that sludge drying effects are good, and the sludge is evenly spread during drying and is uniformly dried. The sludge is fully mixed through rotation of the main stirring plates and auxiliary stirring plates. Driving blades above the main stirring plates drive driven blades to rotate so that the auxiliary stirring plates rotate, and the one motor is utilized for driving operation, thus saving the power. Six groups of the auxiliary stirring plates are disposed around the main stirring plates, and the stirring plates completely cover the lower end ofthe tank main body, thus improving the degree of sufficiency of sludge mixing and facilitating sludge quality adjusting.