43results about How to "Improve Grading Quality" patented technology

The invention discloses bacillus pumilus and application thereof, which belong to the technical field of microbes. The produced strain of the invention is named Bacillus pumilus Van35 according to classification, and the preservation number of the strain is CGMCC No.3411. When the strain preparation is spayed, the soluble total sugar content and the reducing sugar content of tobaccos can be increased, while protein, total nitrogen and nicotine content are reduced. Therefore, specific values of the ratio of dextrose to nitrogen, the ratio of total sugar to betaine and the ratio of total nitrogen to total alkaloid tend to rise, the quality of chemicals is high and the quality of the smoke panel test is improved.

The invention relates to a gradient separation and comprehensive recovery method for multiple metallic elements in gold concentrate. According to the process, the first-grade technology is utilizing an efficient mixed activator and a flotation reagent for carrying out pre-flotation on the low-sulfur gold concentrate, the second-grade technology is carrying out alkali leaching cyanide gold extraction on high-sulfur concentrate, the third-grade technology is leaching gold and silver out of low-sulfur tailings through an environment-friendly medicament and a wet method, the fourth-grade technology is giving priority to lead and zinc concentrating for high-sulfur gold concentrate cyanide tailings namely first low-gold high-sulfur concentrate, the fifth-grade technology is selecting copper fromlead and zinc tailings in an activation manner, the sixth-grade technology is roasting acid making and enriching gold, silver and iron to produce iron ore concentrate through copper tailings namely second low-gold high-sulfur concentrate, and the seventh-grade technology is leaching gold and silver out of the iron ore concentrate through an environment-friendly medicament and a wet method. According to the process, the chain for comprehensively utilizing a low-sulfur gold concentrate resource is prolonged, the comprehensive recovery value of the resource and the grade quality of the productsare improved, the complete utilizing of the gold concentrate resource is achieved, and relatively high economic benefits, environment benefits and social benefits are achieved.

A pressure screening apparatus for screening a stock suspension and screen clearer for a pressure screening apparatus. The pressure screening apparatus includes an inflow chamber, a suspension inflow connected to one end of the inflow chamber, a reject outflow connected to another end of the inflow chamber, an accepted stock chamber, an acceptance stock pipe connected to the accepted stock chamber, at least one screen element disposed between the inflow chamber and the accepted stock chamber, a screen clearer adapted to move with respect to the at least one screen element for preventing clogging of the at least one screen element, the screen clearer comprising at least a first clearing zone and at least a second clearing zone, the first clearing zone having a plurality of clearing elements and the second clearing zone having a plurality of clearing elements which are different from those of the first clearing zone, wherein the stock suspension flows into the pressure screening apparatus via the suspension inflow such that a portion of the stock suspension flows through the clearing zones and exits the pressure screening apparatus through the reject outflow. The screen clearer includes a substantially cylindrical body having a cylindrical outer surface. The cylindrical outer surface includes at least a first clearing zone and at least a second clearing zone. The first clearing zone has a plurality of clearing elements. The second clearing zone has a plurality of clearing elements which are different from those of the first clearing zone. The cylindrical body is rotatably mountable.

The invention discloses a comprehensive evaluation method of a flue-cured tobacco grade quality evaluation index system. The comprehensive evaluation method comprises the following steps: constructinga comprehensive evaluation model of four criterion layers, thirteen index layers and 39 scheme layers; through an AHP analytic hierarchy process, constructing a judgment matrix by multiple persons based on 1-9 scales, and synthesizing the judgment matrix of the multiple persons by adopting an appropriate method, so that weight assignment is carried out on the comprehensive evaluation model; and determining an appropriate comment set of each index according to the acquired actual data, and normalizing the evaluation to finally realize comprehensive evaluation of the flue-cured tobacco grade quality. The method has the advantages that the current situation that the tobacco grade quality of the production area is evaluated by means of subjective impression at present can be improved, quantitative and modular numerical evaluation is provided for tobacco quality of different areas, and a theoretical basis is provided for further improving the tobacco grade quality of the production area and improving the flue-cured tobacco production, operation and quality control level.

The utility model relates to a multistage sorting device for mechanically picked fresh tea leaves, which relates to the technical field of tea processing machinery. It includes fresh tea leaves winnowing parts, fresh tea leaves vibrating screening parts, feed hopper, electrical control box, and is characterized in that: tea fresh leaves vibrating screening parts include vibrating motor, vibrating sieve box, bracket assembly, said vibrating sieve box It is composed of upper and lower three-layer screens and sieve boxes arranged from coarse to fine; the air selection components for fresh tea leaves include fans and bellows components. The first group of bellows and the second group of bellows are respectively connected with two sets of air ducts; the feed hopper is connected to the first layer of coarse screen box; the second layer of medium and fine screen box is located under the first layer of coarse screen box; the third layer The fine sieve box is located below the middle and fine sieve box on the second layer, and the lower part of the third layer of fine sieve box is provided with a chamber, the left side of the chamber is provided with a debris outlet, and the right side of the chamber is provided with a fine leaf outlet. The invention has the positive effects of improving the grade quality of tea leaves and increasing the output of high-quality tea leaves.

The invention relates to granulated feed producing and processing equipment and method. The granulated feed producing and processing equipment comprises a raw material receiving system, a crushing system, a mixing machine, a granulating system and a quantitative packaging system, wherein the raw material receiving system comprises a feeding device, a dosing device, a stirring barrel, an impurity removing device and a dust removing device; the crushing system comprises a crusher and an ozone generating device; the granulating system comprises a conditioning device, a granulator and a cooler; and the quantitative packaging system comprises a sorting machine and a quantitative packaging mechanism. Through adoption of the granulated feed producing and processing equipment disclosed by the invention, the defects that in the prior art, a set of perfect feed producing and processing equipment does not exist, most conventional equipment has single equipment working procedure, the equipment layout is in disorder, the energy consumption is high, the production process is complex, the production efficiency is low, and the product quality cannot be guaranteed, are solved; and the granulated feed producing and processing equipment disclosed by the invention is high in automation degree, simple in structure, high in production efficiency and low in cost, and can produce multi-grade products,and the grade quality is high.

The invention discloses a fruit grading machine. The fruit grading machine comprises a grading machine body, the front end of the grading machine body is fixedly provided with a feeding groove, and abase is fixedly arranged at the position, under the feeding groove, of the front end of the grading machine body; and a screening roller is rotationally arranged on the inner side of the grading machine body, and a dehumidification plate is fixedly arranged at the upper end of the grading machine body. According to the fruit grading machine, an inner cover is added to the inner side of the screening roller, the diameters of leakage holes of an outer cover is changed through arranging leakage holes with different diameters in the inner cover, and thus the application range of the grading machine is expanded; falling force generated by falling of fruits can be relieved through a net bag and a buffering net bag on a pulling plate, and thus the falling force generated by falling can not causedamage to the outer surface of the fruits; and the fruits needing to be graded can be cleaned conveniently through a cleaning groove, the cleaned fruits can be wiped conveniently through cooperation with the dehumidification plate, and thus water drops on the surfaces of the fruits can be conveniently removed, and the cleanness of the surfaces of the fruits can be kept.

A process for improving the grade and optical quality of zircon, comprising: baking a mixture of a zircon feed and concentrated sulphuric acid at a baking temperature in the range of from 200 up to 400° C., and for a time to form water leachable sulphates with impurities therein including at least iron and titanium; leaching the baked mixture to dissolve the leachable sulphates; and separating the zircon from the leachate containing the leached sulphates, which separated zircon is thereby of improved grade and optical quality.

The invention discloses a multi-factor adjustable drum sieve and a multi-factor adjustable drum sieving cleaning device. The multi-factor adjustable drum sieving cleaning device comprises a centrifugal fan (5), an air inlet cover (4), discharging boxes (6) and the drum sieve. The air inlet cover (4) is in a funnel shape, the small-opening end of the air inlet cover (4) serves as an air inlet to be connected with an air outlet of the centrifugal fan (5) through a pipe, the large-opening end of the air inlet cover (4) serves as an air outlet to surround one end of a drum sieve body (3) to form an air channel, a feeding opening (11) is formed in the upper portion of the air inlet cover (4) and provided with a feeding plate, an outlet of the feeding plate extends into the drum sieve body (3), and the discharging boxes (6) are placed below a machine frame (2). The multi-factor adjustable drum sieve and the multi-factor adjustable drum sieving cleaning device are easy and convenient to operate and good in sieving effect, the sizes of meshes of the drum sieve can be changed according to different material varieties, and the multi-factor adjustable drum sieve and the multi-factor adjustable drum sieving cleaning device are wide in application range and high in adaptability.

The invention discloses a classificator for dried fruits. The classificator for the dried fruits comprises a stand. The stand is provided with a screen sorting mechanism mutually connected with a power drive mechanism; the screen sorting mechanism is a long tube-shaped screen which is arranged along the length direction of the stand and can rotate around the axis of the long tube-shaped screen; the inner wall of the long tube-shaped screen is provided with a plurality of material pushing ribs arranged in a thread form from the inlet direction to the outlet direction of the screen sorting mechanism; and a plurality of sorted receiving hoppers are paved at the bottom part of the long tube-shaped screen in sequence along the axis direction of the long tube-shaped screen. Through the spiral material pushing ribs arranged on the inner wall of the long tube-shaped screen and rotary screening and sorting, materials can move in time during a screening and sorting process, and therefore, the production efficiency of the screening and sorting is improved, the materials in the long tube-shaped screen can be completely sorted to the greatest extent, and the sorting quality is improved.

The invention relates to a tea leaf screening line which comprises a feed port, wherein the left side of the feed port is connected with a first conveying belt placed transversely; a vertical tea cutting machine is mounted on the left side of the first conveying belt; the left side of the vertical tea cutting machine is connected with a second conveying belt placed longitudinally; a vibratory feeder is mounted on the front side of the second conveying belt; the lower end of the vibratory feeder is connected with a first sundry outlet; the front side of the vibratory feeder is connected with a first dedusting pipeline system; a first high pressure fan is mounted on the front side of the first dedusting pipeline system; a first pulse dust collector is mounted on the right side of the first high pressure fan; and the right side of the vibratory feeder is connected with a first cyclone feeding device by a first air pipe. The tea leaf screening line can automatically realize the functions of sorting raw tea leaves, removing impurities, dedusting, and cleaning the raw tea leaves, and has the advantages that the tea leaf screening line is easy and simple to operate, low in labor intensity and high in production efficiency, the cleanliness of the tea leaves is high, and the grading quality is high.

The invention discloses a method for improving the quality of tobacco leaves by lysobacter sp. The strain is classified and named as Lysobacter sp C8-1, and is preservatized at the General Microbiology Center of the China Microbial Culture Collection Management Committee on September 28, 2017, and the preservation number is CGMCC No. 1.16271. After microbiological analysis and 16S rDNA gene sequence analysis, it is indicated that the strain is a new type of bacteria. After being sprayed with C8-1 bacteria agent and fermented with alcoholization, the quality of tobacco leaves is improved, the availability of tobacco leaves is greatly improved, the fermentation of tobacco leaves is accelerated, the grade quality of tobacco leaves is improved, the aroma quality and reducing sugar content of tobacco leaves are increased, the content of protein, cellulose, total nitrogen and nicotine is decreased, and the ratio of sugar to nitrogen, the ratio of sugar to nicotine and the ratio of nitrogen to nicotine are increased, thereby making the chemical compositions in the tobacco leaves more harmonious and improving the sensory quality.

The invention relates to a preparation method of a premixed raw material of a ferrite magnet presintering material, belonging to the production field of the raw material of manufacturing industry. The method comprises the following steps: firstly, sending coarse slurry which is prepared by mixing premixed coarse material in a tube mill, performing continuous mixing and grinding in the tube mill to prepare uniform, regular and fine premixed raw material, then sending the premixed raw material to a large capacity precisely-controlled tank, and performing homogenizing treatment to the premixed raw material through the longitudinal circular stirring of pump delivery, the transverse stirring of the agitation impeller and the edge stirring of the vertical fins on the tank wall; and secondly, detecting the components, and adjusting accurately to prepare the premixed raw material with accurate components and uniform grain size. The method of the invention adopts continuous production and does not adopt the traditional and extensive batch production method of the ball mill, thus the production efficiency can be obviously increased, the labor intensity of the operator and the production cost can be reduced, the working environment can be improved, the grain size and components of the premixed raw material slurry product can be highly consistent and accurate and a solid foundation can be laid for the improvement of the quality grades of the downstream magnetic products.

The present invention relates to a tobacco flue-curing and-amending method. Before or during flue-curing tobacco, tobacco is soaked in or sprayed with tobacco flue-curing and amending agent, and thiscan raise the quality of treated tobacco.

The invention relates to a transmission structure of a cylindrical counter-bore classifying screen for corn seeds. The transmission structure comprises a reducer with a motor, a body, a cylindrical counter-bore screen and a feed pipe. The transmission structure is characterized in that the cylindrical counter-bore screen is arranged in the body, a feed end of the cylindrical counter-bore screen is fixed on a fixed ring on one side of the body, and a discharge end of the cylindrical counter-bore screen is fixed on a fixed disc on the other side of the body. The reducer is arranged on one side of the body. A connecting shaft is arranged on one side of the cylindrical counter-bore screen, and the connecting shaft is connected with the reducer through a reducer shaft. A fixed sleeve is arranged on the fixed disc. The fixed ring is connected with an inner guide hole through a riding wheel, and the inner guide hole is connected with the feed pipe. The transmission structure of the cylindrical counter-bore classifying screen for the corn seeds classifying is simple to operate and fine in classifying effect, and specification of cylindrical mesh size can be changed according to different material types, so that the transmission structure is wider in application and higher in applicability.

The invention discloses a method for preparing flue-cured tobacco leaves with high water content, which includes (1) yellowing stage: the technical essentials are to accelerate the yellowing speed and reduce the consumption of contained substances. (2) Color fixing stage: The technical essentials are dehumidification in advance and enhanced dehumidification. (3) Dry gluten stage: the technical essentials are to control the dry bulb and limit the wet bulb. The method can reduce the risk of roasting dregs of flue-cured tobacco leaves with higher water content, improve the quality of tobacco leaves of this type, improve the grade quality after modulation, and increase the income of tobacco farmers.

The invention belongs to the field of tobacco curing, and particularly relates to a preliminary flue-curing method for Honghua Dajinyuan tobacco leaves. The method comprises the steps that fresh Honghua Dajinyuan tobacco leaves are subjected to six-stage flue-curing, and the six-stage flue-curing includes a yellowing earlier stage, a yellowing intermediate stage, a yellowing later stage, a fixation earlier stage, a fixation later stage and a stem drying stage, wherein the flue-curing temperature of the yellowing earlier stage is 32-33.5 DEG C, and the difference between the flue-curing temperature and the wet bulb temperature is 0.5-1 DEG C. The invention further relates to the tobacco leaves obtained through the method and application thereof in tobacco products. The preliminary flue-curing method can improve the Honghua Dajinyuan grade quality, the auxiliary set tobacco proportion is decreased, the average price of Honghua Dajinyuan flue-cured tobacco is increased, and the appearancequality, the chemical composition and sensory quality of the flue-cured tobacco are improved.