1227 results about "Particulate material" patented technology

One aspect is a method for producing a first intermediate product. A feedstock is provided that comprises a first polyester. The first polyester is contacted with a further organic compound in a volume section V3 to obtain a further initial mixture. A weight average molar mass of the first polyester is reduced in the volume section V3 to obtain a first intermediate mixture. The first intermediate mixture comprises a first intermediate product and the further organic compound. First particulated material is added to the first intermediate mixture in a volume section V4. A filtering means is pre-coated with the first particulated material. At least one impurity is at least partially removed from the first intermediate mixture using the filtering means. The first particulated material has a median pore diameter in the range of 5 mm to 20 mm.

A piled granular material surface management robot comprises an auger-based drive system, a memory, and a processor coupled with the memory. The processor is configured to control movement of the robot via the auger-based drive system. The processor is also configured to direct a traversal of a surface of piled granular material in a bulk store, wherein a crust layer of the surface is broken up by auger rotation of the auger-based drive system during the traversal.

One aspect is a method for producing a first intermediate product. A feedstock is provided that comprises a first polyester. The first polyester is contacted with a further organic compound in a volume section V3 to obtain a further initial mixture. A weight average molar mass of the first polyester is reduced in the volume section V3 to obtain a first intermediate mixture. The first intermediate mixture comprisesa first intermediate product and;the further organic compound.First particulated material is added to the first intermediate mixture in a volume section V4. A temperature of the first intermediate mixture in the volume section V4 is in the range of 160° C. to 230° C.

A material removal system includes a collection conduit having a distal end that is positionable adjacent particulate material. A primary particle separator system connected to the collection conduit separates quantities of particulate material entrained in an air stream. A secondary particle separator system connected to an outlet of the primary particle separator system separates additional quantities of particulate material entrained in an air stream exiting the primary particle separator system. An air pump connected to an outlet of the secondary particle separator system creates an airflow through the collection conduit and the primary and secondary particle separator systems. A conveyor system operatively associated with material discharge ports of the primary and secondary particle separator systems collects separated particulate material from the material discharge ports of the primary and secondary particle separator systems and transports the separated particulate material to a material discharge end of the conveyor system.

A pneumatic distribution machine for granular material includes a storage container, a delivery fan for generating a main air / material flow, and a distributor head configured to divide the main air / material flow fed to the distributor head into multiple individual air / material flows, a long main delivery line connecting the delivery fan, the storage container, and the distributor head, and a return device that includes a movable deflection element that is configured, in a dispensing position, to feed an individual air / material flow flowing into and inflow region of the return device to a dispensing region, connected to a dispensing line, of the return device, and in a shut-off position, to feed an individual air / material flow flowing into the inflow region of the return device to a return region that is connected to a return line of the return device.

The invention provides a discontinuous graded soil large-scale discrete element model generation method. The method comprises the following steps: (1) creating a soil particle material and setting soil intrinsic parameters and contact model mesoscopic parameters; (2) creating a 3D penetrometer geometric model for assisting model hierarchical generation and impact simulation; (3) importing the geometric model into EDEM software; (4) creating a soil particle factory for hierarchically generating the model; (5) generating particles with different scale factors in the soil particle factory; (6) selecting different geometric model combinations for assisting model hierarchical generation in the step (2) to generate a model for simulation; and (7) importing the geometric model of the 3D penetrometer in the step (2) into the model generated in the step (6) to carry out impact penetration dynamics simulation. According to the method, construction of the discontinuous graded soil large-scale discrete element model can be realized, and the problem that effective calculation cannot be carried out due to too many particles of a large-scale model generated by fine-grained soil can be effectively solved.

A vacuum drying apparatus has a rigid bin structure within a flexible membrane liner arranged to store particulate material therein. An exhaust passage and air inlet passage communicate through the envelope in sealed relationship with the envelope. The air inlet passage is adjustably flow restricted relative to the exhaust passage so as to enable a flow through material in the liner when applying vacuum pressure to the exhaust passage, for example using a centrifugal fan. The air inlet passage communicating with an upper manifold within the upper portion of the bin structure and the exhaust passage communicating with a lower manifold within a lower portion of the bin structure.

The invention discloses a breakable rock-soil granular material triaxial test simulation method based on a lattice spring-discrete element coupling framework, which comprises the following steps: establishing a triaxial test model rectangular boundary condition, and generating a non-breakable spherical rock-soil granular material in the boundary; replacing the generated non-crushable spherical particle material with rock-soil particles considering particle crushing based on a lattice spring-discrete element coupling frame, and assigning parameters; replacing wall bodies on the two sides of the rectangular boundary condition with a large number of bonded spherical particles to generate a flexible membrane boundary; and applying confining pressure to the boundary of the generated flexible membrane, and carrying out shear simulation. According to the method, the Young modulus and the Poisson's ratio can be matched in a high-precision mode, the heterogeneity of elastic response is reduced, strength degradation and friction characteristics are simulated, and the calculation efficiency is greatly improved.

A process and system for adding particulate material to a flow of foam to a headbox. A particulate material feeder includes a supply chamber fillable with particulate material, a supply hopper, and an airlock valve disposed between the supply chamber and the supply hopper. The particulate material in the supply chamber is flowable into the supply hopper when the airlock valve is open. A pressure supply line coupled to the supply chamber and configured for flowing air into and / or from the supply chamber.

A process and system for adding particulate material to a flow of foam to a headbox. A particulate material feeder includes a first supply hopper fillable with particulate material, a second supply hopper, and a rotary airlock valve disposed between the first and second supply hoppers. The rotary airlock valve is configured for transferring the superabsorbent material from the first supply hopper to the second supply hopper. A pressure supply line is coupled to the rotary airlock valve and configured for flowing air into and / or from the rotary airlock valve.

A device for dosing particulate material uses multiple valve plates to collectively open or close a discharge port, so that an opening degree of the discharge port can be adjusted according to the degree to which the adjustment ends of each valve plate are gathered, thereby effectively adjusting the opening degree of the discharge port. When the amount of particulate material to be dosed is large, the opening degree of the discharge port can be increased accordingly to increase the discharge speed of the particulate material, shortening the discharge time and improving the efficiency of dosing. Furthermore, the opening degree of the discharge port can be adjusted to be adapted with particulate material of different volumes, such that larger particulate material can also smoothly pass through the discharge port to avoid blockage of the discharge port.

The invention relates to the technical field of waste asphalt concrete recycling, in particular to a waste asphalt concrete recycling treatment device which comprises a crushing unit and an air screening unit, a mixed material is subjected to air screening through an air screening frame, the particle size of the mixed material is screened through a screening frame, and in the whole machining process, the waste asphalt concrete can be recycled. The main components of the powder collected in the collecting frame comprise sand powder and asphalt powder and are used for being mixed with other materials to form asphalt sand for use, the main components of the particles meeting the requirements of the discharging equipment comprise asphalt particles and stone particles and are used for being mixed with other particle materials to form an asphalt cold patch material for use, and the recycling rate of waste asphalt is increased.

The present invention discloses a fine-grained high-density concrete and its production process, which relates to the field of concrete technology. The concrete comprises solid granular material, cement, water, and nano anti-shrinkage additives; the unit volume of the solid granular material is 1m 3 The weight of each component is based on G A :G c :G js :G a； Among them, G A is the weight of solid particulate material per unit volume, G c is the weight G A The weight of cement filled in the void volume of solid particulate material, G js For the weight of external water, including G c The sum of the weight of water required for cement hydration and rheological properties of concrete before curing minus the weight G A The weight of water in the solid particulate material; G a The weight of the nano-anti-shrinkage additive added to the pore volume after cement hydration, minus the excess free water volume. Fine-aggregate, high-density concrete has a much lower porosity than ordinary concrete, significantly improving the concrete's compressive, flexural, and durability properties.

A modified current collector for a secondary battery is disclosed herein, comprising a substrate and a conductive layer applied on one side or both sides of the substrate, wherein the conductive layer comprises a conductive material, a binder material comprising a polymer, and a metal compound, and may additionally comprise a particulate material. Also provided herein is a cathode for a secondary battery, comprising the modified current collector and an electrode layer, wherein the electrode layer is located on the surface of the conductive layer. The presence of the conductive layer inhibits corrosion of the substrate and reduces interfacial resistance between the electrode layer and the substrate. In addition, the metal compound in the conductive layer reduces irreversible capacity loss due to SEI formation during initial charging of the battery. Consequently, batteries comprising the modified current collector exhibit exceptional electrochemical performance.

A solid distribution system of an agricultural spreader includes a product hopper configured to contain solid particulate material, a blower, a manifold coupled to the blower and having a plurality of outlets, at least one boom arm comprising a plurality of parallel rigid tubes configured to carry the solid particulate material and air from the blower, and a plurality of hoses. The manifold is configured to split air flow from the blower into flows through each of the plurality of outlets. Each valve is in fluid communication with one of the outlets and one of the rigid tubes, and each valve individually controls flow through a respective one of the rigid tubes. Vehicles having such solid distribution systems are also disclosed.

A transport container for bulk cargo / materials has a rectangular base and four sidewalls. The sidewalls are hingedly connected to the base and movable from an erect condition, providing a box structure for loading of the container, into a folded flat condition for stacking of the container. The base includes hinged floor for discharge of the particulate material contents by lifting the container with forklift engaging formations at an upper end of two oppositely arranged sidewalls. Forklift sleeves on an underside of the floor allow for movement of the loaded container.

The invention relates to the technical field of discharging conveying, in particular to a grinding equipment discharging conveying device with a screening function and a using method of the grinding equipment discharging conveying device. The grinding equipment discharging conveying device comprises a conveying pipe, a feeding bin arranged at one end of the conveying pipe and a discharging opening formed in the other end of the feeding bin; a rotating shaft is rotationally arranged in the conveying pipe, and a spiral blade is fixedly connected to the outer part of the rotating shaft; the spiral blade comprises a material receiving plate fixedly connected to the rotating shaft, a screen fixedly connected to one side of the material receiving plate, a cavity formed between the material receiving plate and the screen, an opening formed in the material receiving plate and a bucket fixedly connected to one side of the opening. The screening device has the beneficial effects that in the conveying process of the materials through the spiral blades, the materials are screened through the screen, large-particle materials are screened to the interior of the cavity, the purpose of preliminary screening of the materials in the material conveying process is achieved, and therefore the screening pressure of follow-up screening equipment is relieved, and the production efficiency is improved.

To properly guide a flow of granular material to a probe in a measuring system for measuring characteristics of the granular material separated from gas by a cyclone separator.SOLUTION: A separation system includes: a cyclone that separates granular material from mixed fluid containing a gas and the granular material; a container that has a truncated conical portion whose diameter gradually decreases downward and is connected to a granular material outlet of the cyclone so that the granular material separated by the cyclone falls while swirling; a conical cone disposed in the container; and a measurement probe that has a measurement unit disposed downstream of a flow of the granular material passing between a lower end of the cone and an inner wall of the container and measures a particle diameter of the granular material passing through the measurement unit.SELECTED DRAWING: Figure 1

The invention relates to an electric machining device for machining workpieces, comprising a worktable (11) providing a support for a respective workpiece during machining, a working unit (15) comprising a machining tool (13), in particular a saw blade (13) or a cutting disc (13), and an extraction device for dust and / or particle material generated during machining, wherein the worktable (11) has a working slot (17) extending in a working direction into which the machining tool (13) is inserted from above during machining, wherein the extraction device comprises a suction nozzle (19) which projects from below into the working slot (17) and has a suction opening (21) elongated in the working direction and pointing upwards, and wherein the suction nozzle (19) projects so far into the working slot (17)that during machining, the machining tool (13) immersed in the working slot (17) protrudes through the suction opening (21) into the suction nozzle (19).

A drop tube for dropping particulate material from an air boom assembly has, in order: a rigid elbow connectable to an air boom outlet; an upper flexible section bendable in at least a direction parallel to a direction of travel of the air boom assembly; a rigid section having an air exhaust vent in a side thereof and a deflector therein; a lower flexible section bendable in at least the direction parallel to the direction of travel; and, an exit aperture having a cross-sectional area less than a cross-sectional area of the lower flexible section of the drop tube above the exit aperture.

The invention provides a system calibration and verification method for a discontinuous graded cohesive soil DEM model. The system calibration and verification method comprises the following steps: (1) preliminarily determining microscopic parameter values of the DEM model; (2) sensitivity analysis of microscopic parameters of each DEM model; (3) gradually optimizing and iteratively analyzing each factor in combination with a sensitivity analysis result to obtain a microscopic parameter optimization value range of the DEM; (4) further optimizing the microscopic parameters of the DEM model based on Box-Behnken test design to obtain multiple groups of optimization parameter combinations; and (5) parameter verification. The method is reasonable in conception, integrates parameter calibration, precision verification and actual experiments, enables the purpose of parameter calibration to be clearer, can provide a more efficient and directional parameter calibration thought for cohesive soil with complex parameter calibration and fewer references, especially fine-grained soil or granular materials with extremely uneven grain size distribution, and is suitable for popularization and application. And meso-scale parameter calibration under quasi-static stress can be converted into parameter calibration and verification under dynamic load stress simulation.

A self-mixing interferometer configured to monitor particulate material within a monitored region of space comprising a laser cavity assembly (1A) and an optical assembly (1B) configured to bathe the monitored region with laser light of the interferometer. A laser monitoring unit (1C) is configured to acquire an interferometric signal generated by the interferometer in response to light returned to the laser cavity assembly from said wavefronts by said particulate material. A processing module (1D) is configured to determine a property of the particulate material within the monitored region according to a structure in data describing the interferometric signal in a frequency-space transformation thereof wherein at least a part of the interferometric signal comprises a waveform of changing frequency.

The invention provides a carbon dioxide capture system based on a calcium-based granular material and a control method of the carbon dioxide capture system. The system comprises a reactor, a decomposition bin, a conveying branch and an input branch, the input branch inputs raw flue gas to the reactor; the conveying branch conveys a calcium-based particle material to the reactor by using the heated flue gas; the reactor is used for controlling the internal temperature by selecting the raw flue gas input by the input branch so as to control the adsorption reaction; the decomposition bin is used for controlling the movement of the supporting plate under the mechanical action and the air pressure action so as to guide the flowing of the materials and further control the desorption reaction. A set of complete and ingenious heat circulation process and material circulation process is constructed, the circulation processes are linked with each other, the structural design is ingenious and practical, and while efficient adsorption and desorption of carbon dioxide are guaranteed, the energy utilization efficiency is improved, the energy consumption is reduced, and the equipment maintenance cost and the energy purchase cost are reduced.

The utility model discloses a paving and arranging mechanism for a conveying belt, which relates to the technical field of material conveying equipment and comprises a rack, a discharging mechanism, a conveying mechanism, a sweeping mechanism and a vibrating and arranging mechanism. The conveying mechanism comprises a material disc, a plurality of material grooves are formed in the material disc in an array mode, and the two sides of the material disc are each connected with a material disc traction chain. The charging tray traction chain is in sliding movement fit with the charging tray moving guide rail, and the power output unit provides driving force for the charging tray to move along the charging tray moving guide rail; the material sweeping mechanism is located above the material disc and comprises a plurality of material sweeping rollers, a plurality of sets of elastic battens are arranged on the material sweeping rollers, and materials are swept into the material groove through rotation; the vibration material arranging mechanism is located below the material disc and comprises a vibration plate, a vibration motor is arranged at the bottom of the vibration plate, multiple rows of flow guide battens are arranged on the upper surface of the vibration plate, the length direction of the flow guide battens is parallel to the moving direction of the material disc, and the flow guide battens are correspondingly arranged in gap areas between the adjacent material grooves. According to the utility model, dispersed paving of particle materials is realized, and the treatment efficiency and effect are improved.

A solid distribution system of an agricultural spreader includes a blower, a manifold having an inlet and a plurality of outlets and coupled to the blower, and a plurality of hoses. The manifold is configured to split air flow from the blower into flows through each of the plurality of outlets. Each hose is connected to one of the manifold outlets. A plurality of parallel rigid tubes are each connected to one of the hoses. A product hopper is configured to deliver solid particulate material to the rigid tubes without passing through the manifold or hoses. Vehicles having such solid distribution systems are also disclosed.

The invention discloses a preparation and quality detection device and method for uniformly layered granular materials with different compactness, and belongs to the technical field of geotechnical test equipment.The device comprises a receiving container arranged on an inner supporting frame, the receiving container is connected with a diffuser through a control valve, and a miniature CPT device is arranged between the diffuser and the inner supporting frame; the top of the receiving container is connected with a hopper through a flexible hose, and the hopper is arranged on the top of the outer supporting frame. A porous plate structure in the diffuser is used for controlling the deposition strength, particle distribution is monitored through a micro pressure sensor and a high-speed camera, the aperture is adjusted, multi-dimensional characteristic in-situ detection is achieved by means of multiple sensors of a micro CPT device, and parameters are optimized and optimal deposition parameters are predicted through a controller. According to the preparation and quality detection device and detection method for the layered uniform granular materials with the different compactness, the deposition strength and particle distribution can be accurately controlled, multi-dimensional detection and automatic control are achieved, the test precision and efficiency are improved, and manual errors are reduced.

The invention relates to a particulate material and a method for preparing the same. The particulate material is composed of a plurality of composite particles. The composite particle comprises a porous particle skeleton, and the porous particle skeleton comprises micropores and / or mesopores. The total pore volume of micropores and mesopores measured by gas adsorption is in the range of 0.4 to 2.2 cm3 / g. The composite particle includes a plurality of electroactive material domains and a plurality of modified material domains disposed within an internal pore volume of a porous particle backbone. At least a portion of the modified material domains are located between adjacent electroactive material domains.

A collection device (4) collects a particulate material (M) generated by friction contact. This collection device (4) is provided with: a suction duct unit (6) that suctions air containing the particulate material (M); a rectification unit (7) that rectifies a flow (F) of the air in the suction duct unit (6) into a laminar flow state; a wind exhaust unit (9) that exhausts the air suctioned into the suction duct unit (6) to the outside of the suction duct unit (6); and a collection unit (8) that collects, in the suction duct unit (6), the air flowing in the suction duct unit (6) in the laminar flow state.

The invention discloses a crushing device and an energy-saving crushing method for feed fine processing, and relates to the field of crushing devices.The crushing device comprises a rotating cylinder and a filter sieve, the filter sieve is hollow and cylindrical, a plurality of filter holes are formed in the filter sieve, the rotating cylinder can rotate in the filter sieve, and an operation assembly and a plurality of hammering assemblies are arranged in the rotating cylinder; the operation assembly comprises an operation rod, the operation rod is rotationally connected into the rotating cylinder, the hammering assembly comprises a hammering head, and the rotating cylinder can drive the hammering head to rotate. The distance between the hammering head and the filter sieve is matched with the diameter of a material, so that particle materials with different diameters are well crushed, large particle materials are ensured to have sufficient space to jump and participate in collision, the crushing efficiency is improved, the large particle materials cannot block small particle materials in the filter sieve from being discharged through filter holes, and the service life of the filter sieve is prolonged. The crushing and discharging efficiency is improved, excessive crushing caused by the fact that small-particle materials cannot be discharged in time is prevented, and the quality of the crushed materials is improved.

A self-mixing interferometer configured to monitor particulate material within a monitored region of space comprising a laser cavity assembly (1A) and an optical assembly (1B) configured to bathe the monitored region with laser light of the interferometer. A laser monitoring unit (1C) is configured to acquire an interferometric signal generated by the interferometer in response to light returned to the laser cavity assembly from said wavefronts by said particulate material. A processing module (1D) is configured to determine a property of the particulate material within the monitored region according to a wavelet transformation of the interferometric signal at least a part of which comprises a waveform of changing frequency.