8results about How to "Less water" patented technology

The production line comprises a preheating furnace, a tubular furnace and a cooling furnace which are connected in sequence, the preheating furnace comprises a first furnace body, a rack, a first feeding pipe, a first discharging pipe, a preheating device and a first driving mechanism, the first furnace body is rotationally connected to the rack, and the second furnace body is rotationally connected to the rack; the two ends of the first furnace body are rotationally connected with the first feeding pipe and the first discharging pipe correspondingly, a first preheating conveying blade is arranged in the first furnace body, a material guiding barrel is arranged in the first preheating conveying blade, a second preheating conveying blade is arranged on the inner side wall of the material guiding barrel, and the preheating device and the first driving mechanism are installed on the rack. The preheating device preheats the first furnace body, and the first driving mechanism drives the first furnace body to rotate. Compared with the prior art, the catalyst carrier has the advantages that preheating and drying can be performed during preparation of the activated carbon, carbonization and activation effects are improved, carbonization and activation processes in the production process of the activated carbon can be effectively controlled, and the catalyst carrier with large aperture and high specific gravity is obtained.

The manganese slag air-drying and cake-pressing device comprises an air heater and a drying oven, an air inlet is formed in the upper end of the drying oven, the air heater communicates with the air inlet, a dispersing device, a dispersing device bag, a feeding hopper and a dispersing wheel device are arranged at the upper end of the drying oven, and the dispersing wheel device comprises a second spiral roller and a third spiral roller which are oppositely arranged and can rotate; a material passing gap is formed between the second spiral roller and the third spiral roller, the second spiral roller and the third spiral roller are opposite in spiral and are arranged in a staggered mode in the length direction, the air inlet is aligned to the lower portion of the material passing gap, a second conveying belt is further arranged in the drying oven, and one end of the second conveying belt is arranged below the material passing gap. According to the electrolytic manganese slag cake pressing device, the problem that the cake pressing process is affected by residual moisture of electrolytic manganese slag is solved.

The utility model relates to the technical field of desulfurization and impurity removal, in particular to a slurry impurity removal device of a belt conveyor. The slurry impurity removing device of the belt conveyor comprises a driving wheel, a filtering conveying belt is arranged on the driving wheel, a discharging port is formed in the filtering conveying belt, a discharging outlet is formed in one side of the driving wheel, and a first-stage rotary washing wheel and a second-stage rotary washing wheel are arranged between the discharging port and the discharging outlet. A loosening rake is arranged between the first-stage rotary washing wheel and the second-stage rotary washing wheel, a first-stage supporting frame is arranged below the first-stage rotary washing wheel, a first-stage scraping plate is arranged on the first-stage supporting frame, a first-stage impurity removing canvas is arranged on the first-stage scraping plate, and the first-stage impurity removing canvas is in contact with the filtering conveying belt. According to the device, through the arrangement of the loosening rake, black substances attached to the interior or the bottom of gypsum are also exposed, and the impurity removal efficiency is greatly improved; and through the arrangement of a scraping plate, the working efficiency of the impurity removal canvas is improved.

The present application provides a kind of new method for identifying oil well measure effect based on production index straight line analysis, which includes: step 1, screening the bottom hole flowing pressure and oil production rate monitored in single well oil well production;Step 2, the data screened in step 1 is analyzed and processed to obtain the production index of quantitative measure effect;Step 3, the production index obtained in step 2 and the corresponding time are plotted in double logarithmic coordinate system;Step 4, the graph plotted in step 3 is linearly fitted, and the physical meaning of the inflection point of the straight line is identified in combination with oilfield site information;Step 5, the critical production index is obtained by using the straight line fitted in step 4 to identify the measure effect and the measure effective time.The new method for identifying oil well measure effect based on production index straight line analysis can effectively identify the oil well measure effect, and has the advantages of simple and fast identification, high identification rate, and is easy to popularize and use.

The present invention relates to a method for extracting and purifying pea proteins, comprising the steps of (a) providing an aqueous composition comprising pea proteins; (b) isolating said pea proteins from said aqueous composition comprising pea proteins; (c) obtaining said isolated pea proteins as an aqueous slurry having a pH ranging from 4.0 to 5.8; and (d) subjecting said aqueous slurry having a pH ranging from 4.0 to 5.8to a temperature of at least 75°C. Also described herein are pea protein compositions and are food or feed products comprising said pea protein compositions.

The disclosure aims to provide a polytetrafluoroethylene fine powder containing less water and less impurities. Provided is a polytetrafluoroethylene fine powder substantially free from water and a fluorine-containing compound having a molecular weight of 1000 or less.

The invention belongs to the technical field of red mud-based materials, and particularly relates to a red mud-based water-absorbing polyvinyl chloride granular material and a preparation method thereof. The granular material is composed of the following components in parts by mass: 100 parts of polyvinyl chloride resin; 65-150 parts of red mud powder which is dealkalized, dried and crushed until the average particle size is 5-10 microns; 3-8 parts of a composite modifier containing at least one of a silane coupling agent and a titanate coupling agent; 3-8 parts of a calcium-zinc composite stabilizer; 1-4 parts of a lubricant; the composite modifier is used for modifying the surface of the red mud powder, so that the red mud powder and the polyvinyl chloride resin form an interface bonding layer. The tensile strength of the obtained granular material is greater than or equal to 25MPa, the water absorption rate is 0.94-1.83%, and the granular material has mechanical stability and adjustable water absorption, so that polyvinyl chloride is highly filled with the low-cost solid waste red mud, the performance is kept, and the bottlenecks of high calcium carbonate cost and difficult red mud utilization in the prior art are solved.

The invention provides a heavy oil thermal mining polymer plugging agent and a preparation method thereof, and relates to the technical field of oilfield chemical plugging, the raw materials comprise blast furnace slag, coal-fired slag, an exciting agent, a water reducing agent, a suspension stabilizer and a retarder; wherein the exciting agent is a mixture of sodium hydroxide and water glass, the modulus of the water glass in the exciting agent is 1.3-1.5, and the adding amount of the exciting agent is 20%-25% of the total weight of the blast furnace slag and the coal-fired slag. The raw material preparation process is simple, the field operability is high, the prepared heavy oil thermal mining polymer plugging agent is added into water and fully stirred to prepare a solution, the solution is cured under the action of a certain temperature to form a high-strength high-temperature-resistant concrete-shaped solid substance, effective plugging is formed in a channeling layer and a water outlet channel, the plugging validity period is long, and the plugging effect is good. And the final recovery efficiency of a heavy oil field is improved.