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33 results about "Screen and treat" patented technology

Skeletal iron catalyst having improved attrition resistance and product selectivity in slurry-phase synthesis processes

Particulate skeletal iron catalyst is provided which contain at least about 50 wt. % iron with the remainder being a minor portion of a suitable non-ferrous metal and having characteristics of 0.062-1.0 mm particle size, 20-100 m2/g surface area, and 10-40 nm average pore diameter. Such skeletal iron catalysts are prepared and utilized for producing synthetic hydrocarbon products from CO and H2 feeds by Fischer-Tropsch synthesis process. Iron powder is mixed with non-ferrous powder selected from aluminum, antimony, silicon, tin or zinc powder to provide 20-80 wt. % iron content and melted together to form an iron alloy, then cooled to room temperature and pulverized to provide 0.1-10 mm iron alloy catalyst precursor particles. The iron alloy pulverized particles are treated with NaOH or KOH caustic solution at 30-95° C. temperature to extract and/or leach out most of the non-ferrous metal portion, and then screened and treated by drying and reducing with hydrogen and to provide the smaller size skeletal iron catalyst material. Such skeletal iron catalyst is utilized with CO+H2 feedstream for Fischer-Tropsch reactions in either a fixed bed or slurry bed type reactor at 180-350° C. temperature, 0.5-3.0 mPa pressure and gas hourly space velocity of 0.5-3.0 L/g Fe/hr to produce desired hydrocarbon products.
Owner:INST OF COAL CHEM ICCCHINESE ACADEMY OF SCI +1

Skeletal iron catalyst having improved attrition resistance and product selectivity in slurry-phase synthesis processes

InactiveUS20020052423A1Good particle strength and attrition resistanceHigh yieldHydrocarbon from carbon oxidesOrganic compound preparationFixed bedSlurry
Particulate skeletal iron catalyst is provided which contain at least about 50 wt. % iron with the remainder being a minor portion of a suitable non-ferrous metal and having characteristics of 0.062-1.0 mm particle size (62-1000 micron), 20-100 m2 / g surface area, and 10-40 nm average pore diameter. Such skeletal iron catalysts are prepared and utilized for producing synthetic hydrocarbon products from CO and H2 feeds by Fischer-Tropsch synthesis process. Iron powder is mixed with non-ferrous metal powder selected from aluminum, antimony, silicon, tin or zinc powder to provide 20-80 wt. % initial iron content and melted together to form an iron alloy, then cooled to room temperature and pulverized to provide 0.1-10 mm iron alloy catalyst precursor particles. The iron alloy precursor particles are treated with NaOH or KOH caustic solution at 30-95° C. temperature to extract and / or leach out most of the non-ferrous metal portion, and then screened and treated by drying and reducing with hydrogen so as to provide smaller sized skeletal iron catalyst material. Such skeletal iron catalyst is utilized with CO+H2 feedstream for Fischer-Tropsch reactions in either a fixed bed or slurry bed type reactor at 180-500° C. temperature, 0.5-5.0 mPa pressure, and gas hourly space velocity of 0.5-3.0 L / g Fe / hr to produce desired hydrocarbon products.
Owner:HYDROCARBON TECH

Apparatus for collecting and screening frozen soil fragments in Hopkinson test

The invention relates to an apparatus for collecting and screening frozen soil fragments in a Hopkinson test. The apparatus comprises a protective cover which comprises an external layer semicircular protective cover and an internal layer semicircular protective cover by low temperature strong glue bonding; the protective cover is connected to a bracing frame and an internal layer slide plate by a loose-leaf hinge and a positioning pin; air vents are arranged at the lower part of the bracing frame, a channel section is arranged on the bracing frame, and a katathermometer is internally arranged in the bracing frame; a temperature control test box and a protective cover are respectively provided with a pole hole and a rotating wheel hole for a Hopkinson pressure bar and a soil scraping rotating wheel to pass through; the channel, a screw and a support bar are used for connecting the bracing frame and an electric vibrating screen; a control power supply is arranged outside a test box with controllable temperature; a temperature control system is used for controlling the temperature of the test box with controllable temperature. The apparatus can prevent secondary fragmentation of frozen soil fragments, and more frozen soil fragments are collected as possible. The frozen soil fragments are screened and treated at first time after the test, and accuracy of test data is improved.
Owner:ANHUI UNIV OF SCI & TECH

Method for screening and treating output signals of lanthanum bromide gamma spectrometer and application thereof

The invention discloses a method for screening and treating output signals of a lanthanum bromide gamma spectrometer and application thereof, wherein the output signals are radiation signals of gamma ray and alpha particles. The method for screening and treating the output signals of the lanthanum bromide gamma spectrometer includes the steps of: using the lanthanum bromide gamma spectrometer to detect the radiation of an object to be detected so as to obtain the output signals; analyzing the output signals so as to obtain characteristic quantity of the gamma ray and characteristic quantity of the alpha particles; obtaining a distribution diagram of the characteristic quantity of the gamma ray and the characteristic quantity of the alpha particles along with energy based on the characteristic quantity of the gamma ray and the characteristic quantity of the alpha particles; and distinguishing the radiation signals of the gamma ray and the alpha particles in the output signals based on the distribution diagram, and obtaining an energy spectrum measurement value gamma[measurement] of the gamma ray and an energy spectrum measurement value alpha[measurement] of the alpha particles. The method can simply and effectively distinguish the radiation signals of the gamma ray and the alpha particles in the output characteristic quantity signals.
Owner:TSINGHUA UNIV

Vertical garbage pulverizer

InactiveCN106964439AIt has the effect of cushioning and crushingGrain treatmentsStructural engineeringEngineering
The invention relates to a vertical garbage pulverizer, which relates to the field of garbage pulverization equipment, and comprises a pulverization cavity, a layered cutter set and a scraper; the layered cutter set is installed in the pulverization cavity, and the inner wall of the pulverization cavity is provided with There is a protruding cutter head; the layered cutterhead group includes multi-layer cutterheads arranged coaxially, and blades are hinged on each layer of cutterheads; the blades rotate around their hinge points; the outer edge track of the blade extends out The outer edge of the cutterhead; the cutterheads on the adjacent next layer are arranged vertically according to the law of the increasing outer diameter of the cutterhead, and the track line of the outer edge of the blade on the layer-by-layer cutterhead is also gradually increasing; the blades on the two adjacent layers of cutterheads The positions in between correspond to a layer of cutter heads on the inner wall of the crushing chamber; the scraper is coaxially installed on the lower side of the layered cutter head group. The vertical garbage shredder adopts cutterheads with variable sizes to crush garbage. Based on partial cutterheads of different sizes, the garbage can be automatically screened and processed during the crushing process, which can achieve the effect of garbage crushing.
Owner:SUZHOU MEISHENG ENVIRONMENTAL PROTECTION TECH

Automatic screening and packaging process of granular traditional Chinese medicinal materials

InactiveCN109834085AImprove classification and screening efficiencyReduce labor intensityGas current separationDrying gas arrangementsEngineeringSewage
The invention provides an automatic screening and packaging process of granular traditional Chinese medicinal materials. The automatic screening and packaging process comprises the following steps: 1,traditional Chinese medicinal materials are placed in a rinsing component for washing, sewage in the rinsing component is drained after washing is completed, and the rinsing component is opened to the input end of an air drying component; 2, the air drying component is used for receiving the clean traditional Chinese medicinal materials poured by a leaching bucket and carrying out rapid air drying on the clean traditional Chinese medicinal materials, an impurity removal component is used for receiving the air-dried traditional Chinese medicinal materials of the air drying component, removingimpurities on the air-dried traditional Chinese medicinal materials and discharging the impurities, and the impurity removing processed traditional Chinese medicinal materials fall into the input endof the screening part from the output end of the impurity removing part; and 3, a screening part accepts the impurity removing traditional Chinese medicinal materials, and the granular traditional Chinese medicinal materials are automatically screened and treated, and the four traditional Chinese medicinal materials with different sizes are screened and classified; and 4, the screened traditionalChinese medicinal materials are output by an output guide plate, the granular traditional Chinese medicinal materials with different specifications are separately output, and a user can carry out bagging on the classified granular traditional Chinese medicinal materials at the output end.
Owner:王和勤

Porous environment-friendly material

The invention discloses a porous environment-friendly material. The specific gravity of the porous environment-friendly material is 0.6-1.1, and the hydroscopicity is below 15%; the porous environment-friendly material is prepared by the following steps: glass powder as well as sludge sand and sediment which are produced by dehydration, desiccation and burning from a sewage treatment plant are mixed according to a proportion of 35-80:1-10 in parts by weight, grinding is carried out, and a primary powder mixture is obtained; the primary powder mixture is screened and treated, and the screened primary powder mixture composed of glass powder as well as sludge sand and sediment is added into a mixing and stirring device; 5-20 parts of clam shells and 1-15 parts of vermiculite powder are added into the mixing and stirring device in the step 4, mixing and stirring are carried out for the clam shells, the vermiculite powder, the glass powder, and the sludge sand and sediment, and mixed power is formed; the mixed power is added into a sintering furnace, and the porous environment-friendly material is manufactured at a high temperature condition. Recycle of waste glass and regeneration of sludge sand and sediment are organically combined with breakthrough, bubbles are enclosed, independent and discontinuous, and the environment-friendly material can be used as building light-weight frame material, construction foundation material, and water quality purifying material.
Owner:苏州希克曼物联技术有限公司 +1

A device for collecting and sieving frozen soil fragments in the Hopkinson test

The invention relates to an apparatus for collecting and screening frozen soil fragments in a Hopkinson test. The apparatus comprises a protective cover which comprises an external layer semicircular protective cover and an internal layer semicircular protective cover by low temperature strong glue bonding; the protective cover is connected to a bracing frame and an internal layer slide plate by a loose-leaf hinge and a positioning pin; air vents are arranged at the lower part of the bracing frame, a channel section is arranged on the bracing frame, and a katathermometer is internally arranged in the bracing frame; a temperature control test box and a protective cover are respectively provided with a pole hole and a rotating wheel hole for a Hopkinson pressure bar and a soil scraping rotating wheel to pass through; the channel, a screw and a support bar are used for connecting the bracing frame and an electric vibrating screen; a control power supply is arranged outside a test box with controllable temperature; a temperature control system is used for controlling the temperature of the test box with controllable temperature. The apparatus can prevent secondary fragmentation of frozen soil fragments, and more frozen soil fragments are collected as possible. The frozen soil fragments are screened and treated at first time after the test, and accuracy of test data is improved.
Owner:ANHUI UNIV OF SCI & TECH

Construction waste disposal device

The invention relates to a construction waste disposal device. The construction waste disposal device comprises an incineration box, wherein a steam storage tank and an incineration waste treatment box are arranged on the right side of the incineration box, the steam storage tank is connected with a steam preparation tank of the incineration box through a high-pressure pipeline, an L-shaped solardevice is arranged on the left side of the steam preparation tank, a photovoltaic panel is arranged on the upper end surface of the L-shaped solar device, an energy storage battery connected with thephotovoltaic panel is arranged in the bottom end of the L-shaped solar device, and a controller is arranged in the steam preparation tank. According to the construction waste disposal device, the steam storage tank, an one-way input port and the incineration waste treatment box are arranged, so that steam storage and steam one-way input are facilitated, and incineration wastes are screened and treated; the L-shaped solar device is adopted for power supply, the photovoltaic panel converts solar energy into electric energy which is then stored in the energy storage battery, and the energy storage battery supplies power to the construction waste disposal device through the controller; and the construction waste disposal device has the advantages of being low in operation cost, good in power supply and demand coordination performance, convenient to operate and the like.
Owner:张强

Treatment device for alcohol production waste liquid

The invention discloses a treatment device for alcohol production waste liquid. The treatment device structurally comprises a convenient and fast waste liquid treatment mechanism, a linking lock, an upper end cover, a built-in lock, a first sealing plate, a second sealing plate and castors. Waste liquid is screened and treated by virtue of mutual cooperation of a screening mechanism and a pulley connecting mechanism, meanwhile, suspended solids in waste clear liquid are further separated by virtue of an optimal stirring mechanism and an optimal cleaning mechanism, finally the waste liquid is settled by virtue of a settling tank and can be utilized after reaching the standard, so that the operation process is simple and convenient, equipment is safe and reliable, and the treatment effect isgood; by starting a motor is to work, a first rotating shaft is driven to rotate, a disc-shaped cam is driven to rotate by virtue of the first rotating shaft, a contact rod is driven to move left andright during the rotation of the disc-shaped cam, a first sliding block is driven to move left and right during the left-right movement of the contact rod, a net plate can be driven to move left andright during the left-right movement of the first sliding block, and the waste liquid can be adequately screened by virtue of the left-right movement of the net plate.
Owner:FOSHAN GUANGXIE ENVIRONMENTAL PROTECTION TECH CO LTD

Process method for refining sand by recycling sludge

The invention discloses a process method for refining sand by recycling sludge. The method comprises the following steps: glass fragments are grinded and treated, in order to manufacture glass powder of micron particle size; glass powder as well as sludge sand and sediment which are produced by dehydration, desiccation and burning from a sewage treatment plant are mixed according to a proportion of 35-80:1-10 in parts by weight, grinding is carried out, and a primary powder mixture is obtained; the primary powder mixture is screened and treated, and the screened primary powder mixture composed of glass powder as well as sludge sand and sediment is added into a mixing and stirring device; 5-20 parts of clam shells and 1-15 parts of vermiculite powder are added into the mixing and stirring device in the step 4, mixing and stirring are carried out for the clam shells, the vermiculite powder, the glass powder, and the sludge sand and sediment, and mixed power is formed; the mixed power is added into a sintering furnace, and the porous environment-friendly material is manufactured at a high temperature condition of 600-900 DEG C. Recycle of waste glass and regeneration of sludge are organically combined with breakthrough, and the environment-friendly material can be used as building light-weight frame material, construction foundation material, water quality purifying material, and artificial floating island.
Owner:TIANHE AUTOMATION TECH SUZHOU +1

Method and Application of Discriminating and Processing the Output Signal of Lanthanum Bromide Gamma Spectrometer

The invention discloses a method for screening and treating output signals of a lanthanum bromide gamma spectrometer and application thereof, wherein the output signals are radiation signals of gamma ray and alpha particles. The method for screening and treating the output signals of the lanthanum bromide gamma spectrometer includes the steps of: using the lanthanum bromide gamma spectrometer to detect the radiation of an object to be detected so as to obtain the output signals; analyzing the output signals so as to obtain characteristic quantity of the gamma ray and characteristic quantity of the alpha particles; obtaining a distribution diagram of the characteristic quantity of the gamma ray and the characteristic quantity of the alpha particles along with energy based on the characteristic quantity of the gamma ray and the characteristic quantity of the alpha particles; and distinguishing the radiation signals of the gamma ray and the alpha particles in the output signals based on the distribution diagram, and obtaining an energy spectrum measurement value gamma[measurement] of the gamma ray and an energy spectrum measurement value alpha[measurement] of the alpha particles. The method can simply and effectively distinguish the radiation signals of the gamma ray and the alpha particles in the output characteristic quantity signals.
Owner:TSINGHUA UNIV
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