3215results about "Bulk conveyors" patented technology

According to the technical scheme, the automatic feeding system comprises a feeding bin, a pneumatic conveying pipeline, an air source device and a discharging bin, and further comprises a distributed sensor set used for monitoring the flux, pressure, temperature and vibration frequency spectrum of a preset point of the pneumatic conveying pipeline; comprising a flow sensor, a pressure sensor, a temperature sensor and a vibration acceleration sensor which are arranged at a plurality of preset points of a conveying pipeline, and a digital twin model building module which is used for building three-dimensional modeling of the pneumatic conveying pipeline and mapping state parameters of all positions of a pipeline distribution sensor group in real time; the blockage analysis module is used for marking a blockage position to three-dimensional modeling in real time based on data acquired by the distributed sensor group, extracting a multi-parameter change curve in a time period T before blockage, constructing a blockage feature library, and generating a blockage risk level through a weight change rate difference value of a feeding bin and a discharging bin; and the graded dredging execution module is configured with a differentiated dredging strategy, and the differentiated dredging strategy is started according to the blockage risk grade.

Powder feeding device and powder transfer method are disclosed. The powder feeding device includes a container including a container body forming a storage space therein; a hopper including a hopper body forming an accommodation space therein; a chamber unit including a chamber housing forming a hollow portion and coupled to the hopper body; a pipe assembly including a container pipe unit which extends from the container and is opened or closed, a hopper pipe unit which is branched from the container pipe unit, is connected to the hopper body, and is opened or closed, and a chamber pipe unit which is branched from the container pipe unit, is connected to the chamber housing, and is opened or closed; and a valve assembly including a coupling valve which is coupled to at least one of the chamber housing and the hopper body and connects / disconnects the storage space to / from the hollow portion.

The invention provides an air supply optimization method for a long-distance slag particle conveying pipeline, and relates to the technical field of pneumatic conveying, based on an actual topological structure of the conveying pipeline, the conveying pipeline is divided into space grid units, a risk scoring function is constructed, a conveying parameter-blockage level-blockage grid position database is constructed, and intervention priority candidate units are marked. And extracting a corresponding air supply parameter set, and generating a personalized air supply scheme. The problem that in the prior art, due to the fact that air supply operation depends on a preset strategy or manual intervention, the air supply amount cannot be adjusted in real time, the conveying state change in a pipeline cannot be accurately handled, and the blocking risk is increased is solved. By constructing the grid chart containing the conveying pipe section topological structure and the blockage risk level and combining the conveying parameter-blockage level-blockage grid position database, the accuracy of blockage risk identification of different grid units is improved, the timeliness of an air supply intervention scheme is enhanced, and the blockage risk is remarkably reduced.

The embodiment of the invention relates to the field of radioactive waste treatment, in particular to lifting feeding equipment and curing equipment. According to the lifting feeding equipment provided by the embodiment of the invention, the conveying jacking device drives the material containing device to move in different directions, so that the material containing device abuts against the vacuum feeding device, the powdery materials can be conveyed to the material containing device from the vacuum feeding device, the powdery materials can be prevented from escaping through jacking communication, and the working efficiency is improved. And material waste and operation space pollution are avoided. According to the curing equipment provided by the embodiment of the invention, the material containing device is moved through the lifting feeding equipment, and the powdery materials are conveyed to the material containing device, so that the powdery materials can be prevented from being scattered; and meanwhile, the material containing device containing the powdery materials can reach other processing stations by moving the material containing device into or out of the containing space so as to carry out the next processing procedure.

According to the intelligent monitoring and regulating method of the pneumatic conveying system, through real-time data monitoring and intelligent regulating of the pneumatic conveying system, online dynamic optimization of energy consumption in the pneumatic conveying process is achieved, and it is ensured that the pneumatic conveying system stably operates in the lowest energy consumption interval; through real-time monitoring and real-time prediction of the pneumatic conveying system, active early warning is performed before the pneumatic conveying pipeline has abnormal working conditions (such as pipe blockage and sudden pressure drop change), and meanwhile, the pneumatic conveying system improves the air volume or controls a rotary feeding valve of the pipeline to reduce the feeding amount, so that the pneumatic conveying pipeline is prevented from being blocked; the stability and safety continuity of the pneumatic conveying system are guaranteed; the system is low in model construction cost, high in prediction and judgment speed, free of dependence on a pre-training model, wide in material transportation range and capable of conducting mode switching adjustment according to the characteristics of different seasonal climates, the model weight can be updated in real time during operation, the generalization ability of the monitoring regulation and control method is remarkably improved, and adaptability is high.

A powder handling device is provided, along with apparatus and methods of its use. The powder handling device includes a mounting portion defining a plane and comprising a mounting interface; a fixture device configured to mount the mounting portion over an opening of a powder container at a mounting interface; and a powder suction unit attached to the mounting portion and passing through the plane. The powder suction unit is movable relative to the mounting portion with at least one degree of freedom. The powder handling device may be mounted onto an opening of a powder container.

The invention discloses a chicken liver powder conveying system based on a multidirectional pneumatic channel, relates to the technical field of pneumatic conveying, and aims to solve the problems that local accumulation is caused by traditional one-way airflow, and the composite effects of conveying, mixing and drying are difficult to consider. The device comprises a mixing tank and an air inlet pipe, the lower end of the mixing tank is sequentially provided with a lower discharging pipe and a material distributing tank, and the lower end of the material distributing tank is provided with a composite pneumatic channel assembly; on one hand, the conveying-mixing-drying composite effect of chicken liver powder and additive powder is achieved through the multi-direction conveying airflow impact effect, stable feeding in the powder pneumatic conveying process is achieved, and on the other hand, a longitudinal disturbance mechanism is combined to be matched with the intermittent spraying effect; the limitation that the mixed powder is prone to moisture absorption and caking is relieved, the phenomenon of local accumulation or pipeline abrasion is avoided, and continuous and stable conveying can be effectively achieved under the design that the two materials supplement each other.

A fault detection method and apparatus (300), a storage medium, and an electronic device, relating to the field of positive-pressure dense phase pneumatic conveying. The method comprises: determining operating state information of a positive-pressure dense-phase pneumatic conveying system (200), wherein the operating state information comprises at least one of the total quantity of ash residues generated by coal combustion in a power plant, the equivalent length of a conveying pipe segment, the design conveying capacity, the ash-air ratio, the mass flow rate of conveying air, the volume flow rate of the conveying air in a standard state, the air-ash mixture temperature at a starting section of a conveying pipe, the conveying speed in a pneumatic ash conveying pipe, the diameter of the pneumatic ash conveying pipe, the pressure loss, the volume of an airlock valve, the volume of a bin pump, the free air flow rate of an air compressor, the standard volume flow rate of the air compressor, the total air consumption of an air compressor system, the compressed air flow velocity, the inner diameter of a compressed air pipe, and the pressure loss of the compressed air pipe; and on the basis of the operating state information, determining a fault area of the positive-pressure dense-phase pneumatic conveying system (200). The method can improve fault detection efficiency of the positive-pressure dense-phase pneumatic conveying system (200).

The utility model discloses a pneumatic vacuum feeding machine, and relates to the field of feeding machines. The pneumatic vacuum feeding machine further comprises a mounting plate arranged in a top cover in the feeding machine body, and a plurality of penetrating openings are formed in the mounting plate circumferentially at equal intervals. The filter cartridge is rotationally connected to the position, close to the penetrating opening, of the lower end of the mounting plate, and filter holes are formed in the side wall and the bottom of the filter cartridge; the fan blade group is arranged in the filter cartridge, and the filter cartridge is rotationally connected with the mounting plate, so that when airflow passes through the filter cartridge, the filter cartridge can be driven by the fan blade group to rotate to generate centrifugal force, and then part of powder attached to the cartridge wall of the filter cartridge can be thrown away under the action of the centrifugal force; therefore, the smoothness that airflow penetrates through the filter cartridge to be discharged is guaranteed, the phenomenon that negative pressure suction of materials is affected due to the fact that filter holes of the filter cartridge are blocked is avoided, and the stability of vacuum feeding of the materials is effectively guaranteed.

The present invention relates to a system for loading and unloading agents in the form of particulate solid material, used for carrying out a physical, chemical, and / or biological process in one or more tanks. The system includes: an intermediate tank, a pump, and a pneumatic conveyor. The intermediate tank and the pump are fluidically connected. For unloading a tank containing saturated or degraded solid material particles, an empty or partially empty solid material tank is fluidically connected to the intermediate tank and the tank containing saturated or degraded solid material particles. For loading a tank, a solid material tank containing unsaturated or undegraded solid material particles is fluidically connected to the intermediate tank.

The invention discloses an anti-blocking optimization pneumatic conveying intelligent control method and system, and the method comprises the steps: enabling the system to receive a starting instruction, initializing system parameters, and entering a standby state; the system enters a conveying state, the opening degree of the valve is calculated according to initialized system parameters, and meanwhile pressure data and flow data are collected in real time and stored in a storage; after the transmission process is finished, feature extraction is carried out on the collected data, and historical trend parameters are stored; dividing the conveying state into a normal state, an early warning state and a blockage critical state, selecting key operation variables influencing blockage from system parameters, processing the key operation variables to form a blockage risk scoring model so as to obtain a risk score, judging the current conveying state of the system, and executing corresponding measures; when the number of times of conveying reaches the preset number of times, the system conducts conveying optimization according to the pipe blocking rate and executes in the follow-up conveying process, and the system has the advantage that the conveying process can be accurately monitored and intelligently optimized.

A machine for blowing a loose-fill insulating product, includes at least a base and a pipe for transporting the insulating product, the base including at least an air inlet, an inlet for loose-fill insulating product and an outlet connected to the pipe, the pipe including at least one cylindrical wall which delimits a space configured for the passage of the loose-fill insulating product and the air, the blowing machine including at least one evacuation orifice formed through the cylindrical wall of the pipe, the at least one evacuation orifice being configured to allow the passage of air toward the exterior of the pipe and block the passage of the loose-fill insulating product.

The invention discloses a sampling device and a conveying system, and the sampling device comprises a sampling assembly which comprises a sampling unit and a first driving unit, and the first driving unit is used for driving the sampling unit to rotate in a conveying pipeline; the sampling assembly comprises a sampling bottle, a sampling channel and a driving assembly, the sampling bottle is connected with the sampling channel, and a first valve is arranged in the sampling channel; the driving assembly is used for controlling connection and disconnection of the sampling bottle and the sampling channel; when the first driving unit drives one end of the sampling unit to be communicated with the sampling channel, the other end of the sampling unit can cut into the center of the conveying pipeline for sampling, and the driving assembly controls the sampling bottle to be communicated with the sampling unit through the sampling channel; a sample enters the sampling bottle from the sampling unit through the sampling channel and is stored in the sampling bottle. According to the sampling device and the conveying system, the problem that sampling is not representative can be solved.

Pressure lock and extruding apparatus for high pressure extrusion with a pressure lock.

The invention relates to an airlift pump system for conveying solid particles in underwater mining. The airlift pump system comprises a material collecting system, a lifting system, a pneumatic regulation and control system, a recycling system and the like. The material collecting system collects solid particles and guides the solid particles to a lifting opening of the lifting system, the material collecting system comprises a material containing hopper, a material guiding groove, a material collecting table and the like, the lifting system lifts and separates the solid particles and a liquid mixture, and the lifting system comprises an inclined hole air lift pump and a lifting pipe; the pneumatic regulation and control system comprises an electromagnetic valve, a plurality of auxiliary gas injection chambers, an optical fiber strain sensor, a microwave concentration sensor and the like. The recovery system comprises a gas-liquid separator, an axial flow turbine generator, an energy storage device, a stock bin and the like. Pipeline vibration and ore pulp concentration are monitored in real time through the optical fiber strain sensor and the concentration sensor, a PLC control algorithm is combined, the conventional operation mode, the vibration suppression operation mode and the anti-blocking operation mode are automatically switched, and the safety and stability of the airlift pump are greatly improved. The micro axial flow turbine generator is additionally arranged at the exhaust end, and tail gas kinetic energy is converted into electric energy.

The invention discloses a rotational flow anti-blocking device for a pneumatic coal ash conveying pipeline, and particularly relates to the technical field of pneumatic ash conveying, the rotational flow anti-blocking device comprises a conveying pipeline main body mounted on an inlet and an outlet of a pneumatic powder suction pump, and an anti-blocking device is arranged on the inner wall of the conveying pipeline main body and comprises a square pipe; the anti-blocking device is arranged in the conveying pipeline body, the drying mechanism is used for drying wet fly ash to reduce viscosity and reduce caking, the vibration mechanism is matched with airflow of the drying mechanism to achieve pipeline vibration to clean attached fly ash, and the crushing and filtering mechanism crushes and filters residual caking. The protection mechanism blocks the square pipe when crushing is not needed so as to guarantee stability of the mechanism, the multiple mechanisms act synergistically, the blocking problem in the wet coal ash conveying process is effectively avoided, the conveying efficiency and the system stability are remarkably improved, the equipment shutdown and maintenance cost is reduced, and the service life of the device is prolonged.

The invention discloses a high-purity material pulverizing and conveying system, which belongs to the technical field of metal pulverizing and comprises a pulverizing production line, a conveying production line and a material storage tank. The pulverizing production line comprises a high-temperature smelting furnace and a pulverizing crucible; an automatic sealing cover is arranged at the top of the high-temperature smelting furnace, a smelting cavity of the high-temperature smelting furnace is connected with a nitrogen tank through a nitrogen pipe, and melt in the high-temperature smelting furnace is discharged into the powder preparation crucible through a heating type discharging pipe; the conveying production line comprises a powder recycling unit and a vacuum feeding machine. The high-temperature smelting furnace is filled with nitrogen and oxygen is isolated, the problem of oxidation of metal in the smelting process is greatly reduced or avoided, oxide floating and gathering are further avoided, the problem that a discharging pipe is blocked due to material blocking caused by oxide floating is solved, meanwhile, material output is constant through air pressure, and the production efficiency is improved. The discharging mode instead of a traditional mode of using a discharging valve is adopted for discharging, the problem that production is out of control due to the fact that high-temperature metal corrodes a control element of the discharging valve is thoroughly solved, the material output stability is high, and the production quality is improved.

The invention belongs to the technical field of feed conveying, particularly relates to a silage aggregate conveying device and method, and aims to solve the problem that stable operation of a conveying belt is affected due to uneven load on the conveying belt during bearing when caked silage is conveyed, the silage aggregate conveying device comprises a tool bottom plate, and two conveying plates are fixedly connected to the tool bottom plate; a plurality of round holes are formed in the two sides of the two conveying plates, and the interiors of the two opposite round holes are connected with the same rotating shaft through bearings; the conveying belt is in transmission connection with the exteriors of the multiple rotating shafts, and the conveying belt is used for conveying the silage; and the conveying motor is arranged on one side of one conveying plate. The silage collecting and conveying device and method have the advantages that caked silage irregular in shape and inconsistent in height can be flatly laid and disassembled, so that the conveying belt is uniform in bearing stress, and stable operation of the conveying belt is improved.

The invention relates to the technical field of aluminum machining, and particularly discloses a pipeline anti-blocking detection device and method.The pipeline anti-blocking detection device comprises a pipeline with a discharging port formed in the bottom of one end, a belt is installed in the pipeline, right-angle plates which are evenly distributed are rotationally arranged on the belt, and the end, away from the discharging port, of the belt is rotationally arranged on a driven shaft set; and one end, close to the discharge hole, of the belt is rotationally arranged on the driving shaft group. The belt structure which can operate passively and actively and is provided with the right-angle plate is adopted, whether the discharge port end of the pipeline is blocked or not can be judged by detecting the rotating speed of the driving shaft in the passive operation state of the belt, blocked aluminum skimmings can be conveyed in the active operation state of the belt, dredging of the pipeline is accelerated, and the service life of the pipeline is prolonged. Workers do not need to work aloft to dredge the pipeline, the conveying efficiency of the pipeline can be improved, the working efficiency is improved, and use is convenient.

The invention discloses a powder multidirectional pneumatic conveying channel structure based on mixed material processing, and relates to the technical field of pneumatic conveying, the powder multidirectional pneumatic conveying channel structure specifically comprises a buffer mixing cylinder, the bottom of the buffer mixing cylinder is provided with a sealing ball valve, the bottom of the sealing ball valve is fixedly communicated with a first flow channel through a flange, and one end of the first flow channel is fixedly connected with a material distributing cylinder; a runner II is fixedly communicated with one side of the material distributing barrel, and a feeding pipe is also communicated with one side of the material distributing barrel; through two core designs of mechanical linkage self-adaptive regulation and intelligent on-demand energy supply, the energy efficiency ratio and the operation flexibility of the system are remarkably improved while the problem of powder conveying layering is solved, an efficient and reliable solution is provided for long-distance and multi-component powder pneumatic conveying, and compared with a static mixer, the energy efficiency of the system is greatly improved. The problem of separation caused by material characteristic difference is solved, and energy consumption increase caused by a multi-section mixer is avoided.

The utility model discloses a dust explosion-proof monitoring pre-control device of a cigarette dust-removing pneumatic conveying system, and relates to the technical field of dust explosion prevention of cigarette production equipment. Explosion-proof detection mechanisms such as a temperature sensor, a pressure sensor and an electrostatic spark detector, and control execution mechanisms such as an extinguishing and cooling device, a pressure relief control valve and a pipeline blocking valve device are arranged on the dust removal branch pipe and the main pipe, and are connected with a centralized control device; real-time monitoring and pre-control of temperature, pressure and electrostatic sparks of the cigarette dust in the conveying process are achieved. When abnormal conditions are detected, sound and light alarms can be given out in time, measures such as water spraying cooling, pressure relief and pipeline blocking are taken, dust explosion is effectively prevented and controlled, and the safety of cigarette production equipment and personnel is protected. Meanwhile, by arranging the one-way explosion-proof device, it is ensured that when the dust removal equipment explodes, impact airflow cannot affect an upstream conveying pipeline and equipment, and the safety of the system is further enhanced.

The utility model discloses an efficient HEPA potassium permanganate composite filter material preparation particle self-suction type feeding device, which comprises a feeding bin, a negative pressure mechanism and a feeding mechanism, the top of the feeding bin is provided with a main feeding port, the main feeding port is provided with a main feeding pipeline, the main feeding pipeline is provided with an upper layer electric valve and a lower layer electric valve, and the upper layer electric valve and the lower layer electric valve are connected with the negative pressure mechanism. A Y-shaped feeding pipe is mounted at the top of the main feeding pipeline, the Y-shaped feeding pipe is provided with two input pipelines and an output pipeline, the output pipeline is connected with the top of the main feeding pipeline, a negative pressure port is formed in the top of each input pipeline, a filter screen is mounted at the position, close to the negative pressure port, in each input pipeline, and branch feeding ports are formed in the positions, below the filter screens, of the input pipelines; the utility model further comprises. According to the automatic feeding device, automatic feeding and supplementing of particle materials can be achieved, manual time-consuming and labor-consuming feeding and frequent feeding are not needed, the input pipeline is switched to be communicated with the negative pressure source in the feeding process, the filter screen is prevented from being blocked, and the feeding efficiency of the particle materials is improved.

The utility model discloses an energy-saving and consumption-reducing pneumatic powder conveying system device, which relates to the technical field of pneumatic powder conveying and comprises a blanking barrel, a crushing component arranged on the blanking barrel, a conveying pipeline arranged below the blanking barrel, a Roots blower arranged on one side of the conveying pipeline, and support legs fixedly mounted on two sides of the blanking barrel. A base plate is fixedly installed between the supporting legs on the two sides, an auxiliary discharging mechanism is arranged on the base plate, a collecting barrel is arranged on the other side of the conveying pipeline, and the conveying pipeline communicates with the collecting barrel. According to the energy-saving and consumption-reducing powder pneumatic conveying system device, the auxiliary discharging mechanism is arranged, a double-shaft motor is used for driving a transmission shaft and a rotary disc, then a connecting shaft is driven to do reciprocating motion in an arc-shaped sliding groove, a moving part can intermittently knock the bottom of a conveying pipeline, materials are effectively prevented from being accumulated in the conveying pipeline, and the conveying efficiency is improved. The conveying pipeline can be prevented from being blocked, and it can be guaranteed that the materials can be continuously and stably conveyed into the collecting barrel.

The foam metal smelting raw material pipeline conveying device comprises a bottom plate, the left side of the upper end of the bottom plate is fixedly connected with a conveying fan, the output end of the conveying fan is in bolted connection with a front conveying pipe, and the rear end of the front conveying pipe is fixedly connected with a rear conveying pipe; an open groove is formed in the lower end of the bent position of the bottom of the rear conveying pipe, an elastic pipe wall is fixedly connected into the open groove, and a supporting seat is fixedly connected to the position, located below the elastic pipe wall, of the upper end of the bottom plate. According to the device, the height of the driving assembly can be adjusted through the arranged lifting assembly, so that the height of the scattering assembly can be adjusted, the scattering assembly can be driven to move and rotate through the arranged driving assembly, and when the scattering assembly makes contact with the elastic pipe wall, the elastic pipe wall can be vibrated and pressed; and therefore, the accumulated metal powder can be vibrated and scattered, and accumulation of the metal powder can be avoided.

The present invention relates to a particle transfer system and a particle transfer method which allow preciously-weighed particles to smoothly pass through a vertically-provided vertical pipe of a transfer line when powder-type particles are transferred along the transfer line, and which prevent the particles from remaining or stagnating in the vertical pipe. To this end; the particle transfer system includes a particle transfer unit including at least one from among: a first transfer unit for transferring the particles in correspondence to first transfer information; a second transfer unit spaced from the first transfer unit to transfer the particles in correspondence to second transfer information, which is the same as or different from the first transfer information; and a third transfer unit spaced from the first transfer unit and the second transfer unit to transfer the particles in correspondence to third transfer information, which is the same as or smaller in amount than the first transfer information or the second transfer information.

This invention provides a star-shaped feeder, comprising a housing, an impeller, and a valve body transition portion disposed between the two. The housing is sequentially formed from top to bottom with an internally connected feed hopper, a valve body cavity, and a discharge hopper. The valve body cavity is formed into a transverse cylindrical space for mounting the impeller. The valve body transition portion is disposed on the inner wall of the feed hopper, so that the feed inlet and the axis of the impeller are offset vertically in space. This controls the material to fall into the first half of the feed hopper as the impeller rotates past the bottom of the feed hopper. This solves the problem that the tip of the impeller blades and the periphery of the feed hopper opening easily jam and trap products during operation, ensuring that the star-shaped feeder stably and quantitatively conveys materials at a uniform speed, while effectively avoiding losses caused by impeller jamming.

The utility model relates to a negative pressure conveying, metering and receiving bin. Comprising an installation support, a pipeline support arranged on the installation support, a metering bin used for metering materials, an upper barrel arranged at the top end of the metering bin, a filter element used for separating air in the materials, a bin cover installed at the top end of the upper barrel, an air suction device used for conveying the materials and a weighing module used for detecting the weight of the materials. A plurality of groups of weighing modules which are arranged in a circumferential array are arranged at the joint of the metering bin and the mounting bracket; a plurality of groups of filter elements are arranged in the inner cavity of the upper cylinder body; the air suction device is installed on the pipeline support and connected to the stock bin cover and the metering stock bin. And a discharge butterfly valve is arranged at a discharge port at the bottom end of the metering bin. The technical problems that in the prior art, in the vacuum conveying process of materials, time and labor are wasted during material conveying, more devices are needed for accurate metering, and large space is occupied, so that the material conveying cost is increased are solved.

The utility model relates to an unloading plate structure and an anti-breaking unloader for grain quality inspection, and belongs to the technical field of unloaders. The air suction pipe is connected with the negative pressure air suction pipe and conveys grains through negative pressure; the grain conveying pipe is used for conveying grains; the discharging plate is arranged at an outlet of the discharger shell, and the discharging plate is movably connected with the discharger shell; and the driving part is used for driving the unloading plate to rotate. The unloading plate and the driving part are arranged in the device, and the driving part is matched with the negative pressure system, so that when grains are stacked to reach the preset weight, the gravity triggers the unloading plate to be opened stably, and the situation that the grains are broken due to instant impact, and grain detection data are influenced is avoided.

The utility model discloses a long-distance multi-stage pressurizing pneumatic conveying anti-erosion pipeline system, which is characterized in that a plurality of stages of pipelines are connected through an elbow with an anti-wear bowl-shaped structure, and a pressurizing pipeline is arranged at the elbow to realize a multi-stage pressurizing conveying effect, so that the conveying efficiency of a long-distance pipeline is ensured. The design method comprises the steps that CFD-DEM-based numerical simulation is adopted to obtain gas-solid two-phase flow characteristics under different working conditions, the product of the collision force of particles and the wall face and the number of collision times of the particles and the wall face is adopted as a quantitative evaluation index of the pipeline abrasion degree, and finally an empirical correlation formula of structure parameters, material parameters and the pipeline abrasion degree is obtained. And optimal structure parameters and process parameters under the lowest energy consumption and abrasion loss are further obtained. High-speed particles are prevented from directly impacting the inner wall of a pipeline, abrasion is reduced, and the purpose of low-consumption, abrasion-resistant and long-distance pneumatic conveying is achieved.

The utility model relates to the technical field of grain conveying, in particular to a residual grain cleaning device which comprises a hopper, the top of the hopper is connected with a material collecting box in a sliding mode, an air bellow is fixedly installed on the top of the material collecting box, a first motor is fixedly installed on the top of the air bellow, and the output end of the first motor is fixedly connected with an impeller. And one side of the air bellow is fixedly connected with an air outlet, the outer surface of the material collecting box is fixedly connected with a feeding pipe, and a corrugated pipe is fixedly installed on the outer surface of the feeding pipe. The device has the advantages that when residual grains in the carriage are cleaned, the extension arm extends into the carriage, then the worm and gear elevator enables the suction head to descend and be attached to the inner bottom of the carriage, then the extension arm is stretched out and drawn back, the second motor drives the fluted disc to rotate, and the material collecting box slides on the guide rail, so that the position of the suction head is adjusted; the suction head can suck residual grains on a carriage into the material collecting box in all directions, manual loading is not needed, time and labor are saved, and the grain unloading efficiency is improved.