3190 results about "Screw conveyor" patented technology

The invention relates to the technical field of recycled plastic injection molding, and discloses an injection mold based on a plastic recycled particle uniform plasticizing structure, the injection mold comprises a molding part, the molding part comprises a fixed mold, and one side of the fixed mold is slidably connected with a movable mold. The injection mold based on the uniform plasticizing structure of the plastic recycled particles can effectively solve the problems that in the prior art, the main purpose of a spiral conveyor is conveying, the recycled plastic particles are conveyed forwards and plasticized step by step under rotation pushing of a screw, but the recycled plastic particles are complex in source and difficult to plasticize. The material, the shape, the contained additives and the like of the recycled plastic particles are greatly different, the recycled plastic particles with different characteristics are difficult to be fully and uniformly mixed when entering a mold only through screw conveying and preliminary plasticizing, the interiors of products are easy to have nonuniform components and performances, and the strength of some parts of the products is insufficient. The invention solves the problems of high probability of breakage when bearing external force, poor overall quality, low production efficiency and low product percent of pass.

The invention provides a sandy stratum tunnel water burst risk prediction method. The method comprises the steps that a radar instantaneous energy spectrum in front of tunneling is obtained through a geological radar, a micro-seismic spectrum is obtained through a micro-seismic array, and a residual distance is obtained through laser ranging; aligning and coupling the two spectrums to obtain a water inrush risk index, inputting the water inrush risk index and the residual distance into a self-adaptive threshold comparator, and if the water inrush risk index and the residual distance exceed the limit, dynamically adjusting the rotating speed of a cutter head, propulsive force, the rotating speed of a screw conveyor and grouting pressure, and generating a risk avoidance path; and calling a water inrush risk model library constructed by LSTM-Attention, inputting a risk index sequence, a residual distance, cutterhead torque, a soil pressure gradient, a current change rate and other auxiliary variables, and outputting a future multi-step risk level. According to the method, accurate prediction and real-time avoidance of the water gushing risk of the sandy stratum tunnel can be realized, and the safety and efficiency of tunnel construction are improved.

The invention discloses a sand gravel stratum pipe jacking force-stratum resistance real-time matching control method, belongs to the technical field of underground engineering pipe jacking construction, and solves the technical problems of pipe clamping, ground upheaval or settlement easily caused by mismatching of jacking force and stratum resistance in a sand gravel stratum. According to the method, the jacking force is calculated by collecting the pressure of a jacking oil cylinder in real time, the torque of a cutter head, the rotating speed of a spiral conveyor and the soil outlet pressure are synchronously obtained, and a resistance sudden change area is recognized and target resistance is dynamically predicted based on the sudden change gradient of the torque-rotating speed ratio; the jacking speed, the grouting pressure and the rotating speed of the spiral conveyor are adjusted in a linkage mode according to the real-time deviation of the jacking force and the target resistance; and through grouting closed-loop control and unearthed pressure fluctuation analysis, a penetration abnormal area is judged, a penetration coefficient is corrected, and real-time dynamic matching of jacking system parameters and formation resistance is achieved. The method is mainly used for safe and efficient propulsion control of sand gravel stratum pipe jacking construction.

The invention provides a flexible middle supporting structure of a vertical screw conveyor, which solves the problems of blanking buffering and the like of the screw conveyor, and comprises a conveying cylinder, the inner side of the conveying cylinder is movably connected with a connecting shaft through a screw blade, and a driving assembly and a flux adjusting assembly are arranged between the conveying cylinder and the screw blade. A flexible buffering assembly is arranged between the connecting shaft and the spiral blade. The device has the advantages of good structural stability, low failure rate and the like.

The invention relates to the technical field of underground engineering, and discloses an automatic pipe jacking machine for pipe jacking construction, which comprises a main frame made of high-strength steel and capable of bearing thrust applied by the pipe jacking machine in the working process; the propelling module comprises a plurality of push rods, and the maximum thrust of the propelling module is 80 tons; the guide modules are arranged on the two sides of the main rack, each guide module is composed of a guide frame and a base, and the pipe jacking machine keeps linear motion in the construction process; the heading head is mounted in front of the propelling module and comprises a cutting tool and a spiral conveyor; the power module is arranged in the heading head, adopts a diesel engine, has the power of 150kW, and provides continuous power for the heading head; and the control module is arranged in the main rack and fixedly mounted on the side wall of the main rack. The reliability of the equipment is improved, and the intelligent monitoring and early warning system is additionally arranged, so that the equipment deviation or damage caused by geological sudden change can be effectively avoided, the construction risk is greatly reduced, and the operation safety and high efficiency are guaranteed.

The invention provides a lossless helical blade wear real-time monitoring system and detection method, and relates to the technical field of helical blade wear detection, and the lossless helical blade wear real-time monitoring system comprises at least one group of sensing assemblies and a processing terminal. Each sensing assembly comprises at least one sensing unit and is arranged on a barrel of the spiral conveyor, and each sensing unit is suitable for obtaining the magnetic induction intensity change in the process that a spiral blade is abraded in a detection range or rotates towards and away from the sensing unit and outputting a detection signal; the processing terminal is in communication connection with the sensing unit and is suitable for obtaining a detection curve representing the change of the relative position of the spiral blade and the sensing unit according to the detection signal and comparing the detection curve with a preset calibration data set so as to determine the abrasion loss of the spiral blade in the detection range according to the matching degree of the detection curve and the calibration data set.

The utility model discloses a screw conveyor screw shaft blade wear detection device, and solves the problems of high difficulty and low precision of screw shaft blade wear detection in the prior art. The utility model relates to a screw conveyor screw shaft blade wear detection device, which comprises a fixed seat arranged on a screw conveyor cylinder in a sealing manner, a telescopic driving piece with a stroke sensor is arranged on the fixed seat, and one end of the telescopic driving piece extending into the screw conveyor cylinder is connected with a detection plate corresponding to a screw blade. The detection plate is provided with an abrasion detection piece for measuring the abrasion loss of the detection plate; according to the device, the oil cylinder, the displacement sensor and the like are adopted, and the function of rapidly measuring the abrasion loss of the spiral shaft can be achieved through the displacement generated when the oil cylinder pushes the lower detection plate in a closed environment. The wear detection device provided by the utility model solves the problems of difficulty in wear detection, high detection cost, untimely detection, low detection precision and the like of the screw shaft of the screw conveyer on site, and realizes the purposes of convenience, rapidness and high accuracy in wear detection of the screw shaft.

The present invention belongs to the technical field of construction engineering, and particularly relates to an intelligent fluid soil solidifying agent mixing and loading production line and method, including: a material transportation part, located on the periphery of the box body part, including a feeding unit near the front and rear access doors and a discharging unit near the front access door; a material storage and use part, installed in the upper inner area of the box body part, including a material transportation and cutting unit, a classified material storage unit, and a weighing and feeding unit that are sequentially located under the lower surface of the inner ceiling of the box body from top to bottom; a production part, installed in the lower inner area of the box body part, including a U-shaped screw conveyor, a toothed roll crusher, a high-frequency vibrating screen, a first low-pressure continuous conveyor pump, a double-motion mixer, a second low-pressure continuous conveyor pump, and a valve-opening full-automatic packaging machine that are sequentially located in the lower area of the box body from back to front. The present invention can realize the automation of raw material transportation, storage, processing, production, and bagging, and effectively reduce the production and use cost of the solidifying agent at the construction site.

The invention relates to the technical field of engineering machinery, in particular to a material weight control method and device, engineering machinery and a storage medium. Comprising the steps of obtaining material weight measured by a weighing device; determining material flow according to the material weight; inputting the material flow into a fall prediction model to obtain a fall prediction value; determining a metering stop value according to the fall prediction value and the target material weight; and under the condition that the error between the material weight measured by the weighing device and the metering stop value is within the preset range, the screw conveyor is controlled to stop, so that the control precision of the screw conveyor is improved, the screw conveyor can operate timely and accurately, and the metering precision of the material is improved.

The present invention discloses a sludge shaftless screw conveyor for treating and recycling ceramsite from sludge, which relates to the technical field of sludge treatment. It includes a housing and a scraping assembly. One side of the housing is fixed with a motor, and the output shaft of the motor is connected with a screw blade. The scraping assembly is arranged outside one end of the screw blade. When it is necessary to clean the shaftless screw blade in the present invention, only need to start the motor to make the screw blade rotate. At this time, since the first scraper and the second scraper are respectively attached to both sides of the screw blade, the surface of the screw blade can be scraped and cleaned. Moreover, the connecting column can also block the gap formed between the first scraper and the second scraper to prevent residues from passing through. At the same time, the height of the top plate is positioned by using the sliding seat, the sliding rail, the connecting plate and the adjusting assembly, so as to avoid the vertical sliding of the first scraper. Therefore, when the screw blade rotates, it will also push the first scraper to move, so as to comprehensively clean the outside of the screw blade.

The invention relates to the technical field of chemical waste liquid rectification separation, in particular to a solvent rectification device for chemical waste liquid treatment, which comprises a frame, two mounting boxes, a tower body and the like, the frame is connected with the two mounting boxes, the tower body is mounted on the two mounting boxes, and the mounting boxes are communicated with the tower body. Chemical waste liquid can be injected into the tower body through the waste liquid pipe, a high-boiling-point solvent can be injected into the tower body through the solvent pipe, the original azeotropic condition is broken, and the relative volatility among components is changed, so that rectification separation is realized, the filler can be conveyed upwards through the spiral conveyor, the filler is conveyed into the tower body for loading, and the production efficiency is improved. The sliding plate can be driven by the lead screw motor to move rightwards, so that the discharge hole corresponds to the tower body, old filler falls onto the material guide plate through the discharge hole and rolls leftwards to be discharged, the filler is automatically cleaned and replaced, manpower and material resources can be saved, and the safety can be improved.

The utility model discloses a stirring kettle for in-situ dyeing of a PBO polymer, which belongs to the technical field of stirring kettles and comprises a kettle body, a feeding port and a driving motor are arranged at the upper end of the kettle body, the driving motor is connected with a stirring shaft through a coupler, the stirring shaft extends into the kettle body and is connected with a stirring frame, stirring blades are arranged on the stirring frame, and a discharging port is arranged at the lower end of the kettle body. The discharging port is connected with a conical spiral conveyor, the lower end of the stirring shaft is connected with a first spiral belt shaft through a one-way driving mechanism, the first spiral belt shaft is arranged in the conical spiral conveyor, and a first spiral belt is arranged on the first spiral belt shaft. The PBO polymer and the pigment are both contained in the kettle body through the feeding port, the motor rotates forwards to mix materials (the conical spiral conveyor is static) when rotating forwards, high-speed and high-efficiency mixing of the pigment and the polymer materials is achieved, after the pigment is mixed, the motor rotates backwards to drive the stirring shaft to rotate, and the stirring frame, the stirring blades and the first spiral belt shaft rotate backwards, so that the stirring effect is achieved. And the mixed material in the kettle body is discharged from the discharge hole through the conical spiral conveyor.

The invention provides an intelligent lime adding control method and system and a medium. The method comprises the following steps: acquiring real-time water flow data, calculating to obtain effective water flow parameter data, processing by combining the obtained historical average water flow parameter data and historical lime average dosage data to obtain predicted lime dosage data, acquiring lime performance parameter data and lime average reaction duration data, and processing to obtain lime effective utilization rate data; lime adding quantity demanded data are obtained by processing lime effective utilization rate data and lime predicted dosage data, then screw conveyor grade data are obtained through threshold value comparison, and finally the purified water state is obtained through threshold value comparison after purified water standard parameter data and purified water real-time parameter data are processed. Further adjusting the lime adding demand quantity data; therefore, intelligent adding of the lime is realized through calculation of the predicted lime dosage data, the lime effective utilization rate data and the lime adding demand quantity data and determination of the state of the purified water.

The invention discloses a device and method for transporting powdery raw materials for hydrogen production, the device comprises a spiral conveying rod, a feeding / discharging assembly and a feeding flow optimization system, and the system works cooperatively through four modules: a material state analysis module for outputting a material state coefficient based on particle breakage rate and moisture content change; the equipment operation state analysis module outputs an equipment state coefficient according to the raw material temperature, the current fluctuation and the vibration amplitude; the transmission dynamic process analysis module is used for generating a rotating speed-density matching coefficient in combination with the material state coefficient, the equipment state coefficient, the temperature rise speed and the filling compactness; and the feeding flow optimization module is used for dynamically adjusting the target feeding flow through a feeding flow optimization model on the basis of the current feeding / discharging flow of the rotating speed-density matching coefficient. Material integrity protection, equipment operation stability improvement and flow self-adaptive control in the powder conveying process are achieved, and the hydrogen production raw material conveying efficiency and reliability are remarkably improved.

The utility model relates to the technical field of screw conveyors, and discloses a screw conveyor transmission system with a bearing protection mechanism, which comprises a gear box, a speed change mechanism is movably mounted on the inner wall of the gear box, a sealing mechanism is sleeved on the outer wall of the speed change mechanism, a mounting pipe is fixedly mounted on the outer wall of the sealing mechanism, and the bearing protection mechanism is fixedly mounted on the mounting pipe. The mounting pipe is arranged on the right side of the gearbox, the sealing mechanism comprises an auxiliary sleeve, a clamping block, a spiral blade, a cover plate, a first buckle, a ball, a second buckle and a fixing plate, and the speed change mechanism comprises an input shaft, an input gear, a first transmission shaft, a second transmission shaft, a second speed change gear, a first speed change gear, an output shaft and an output gear. According to the utility model, the problems that the bearing is damaged and cannot be completely conveyed when dust materials are conveyed are solved, the sealing mechanism can be used for sealing between the output shaft and the mounting pipe, powder is prevented from entering the bearing and influencing the bearing, and thus the protection on the bearing is improved.

The invention relates to the technical field of shield tunneling machine disassembly, and particularly discloses a modular disassembly, disassembly tool and method for a shield tunneling machine in a tunnel. The tool comprises a tool body, the tool body comprises an upper mounting frame and a lower mounting frame, and a support is arranged between the upper mounting frame and the lower mounting frame; two lifting plates are arranged on the upper mounting frame, and through holes are formed in the lifting plates; rollers are arranged at one end of the lower mounting rack away from the hoisting section; the tool can improve the dismounting efficiency; the method comprises the steps that S1, the water stop hoop is poured; s2, dismounting the cutter head; s3, propelling, and dismounting a hinged oil cylinder; s4, the duct piece trolley is disassembled; s5, the shield tunneling machine is electrically disassembled; s6, disassembling a hydraulic fluid pipeline; s7, the spiral conveyor is dismantled; s8, the segment erector is disassembled and transported; s9, dismounting and transporting the *-shaped beam; s10, dismounting and transporting a main driving speed reducer and a motor; s11, the man bin is dismantled; s12, disassembling the main drive; the construction method can help to ensure the smooth implementation of the dismounting process and improve the construction efficiency.

The invention relates to the technical field of screw conveyors, in particular to an end shaft hole dynamic sealing structure of a chemical single-pipe screw conveyor. Comprising a conveying shaft rotationally connected to a rack; the flange is connected with the end cover, a through hole is formed in the middle shaft, the conveying shaft is in clearance fit with the through hole, the inner side face of the flange is coaxially connected with an end cover leakage-proof ring, and the end cover leakage-proof ring is in clearance fit with the conveying shaft. The annular limiting seat is coaxially connected to the outer side of the flange connecting end cover; the packing body is arranged between the annular limiting seat and the conveying shaft; the inner wall of the packing pressing ring is in clearance fit with the conveying shaft, the packing pressing ring comprises a flange connecting part and a pressing part, the flange connecting part is adjustably connected to the annular limiting seat through a connecting piece, and the pressing part abuts against the outer end of the packing body. According to the end shaft hole dynamic sealing structure of the spiral conveyor, the acting force of the spiral blade for pushing materials can be eliminated, the materials are prevented from being extruded into a gap between the packing and the spiral shaft, and the sealing performance is good.

A helical screw conveyor unit, worm shaft, worm extruder and method for providing a worm shaft, wherein the helical screw conveyor unit is an exchangeable element for a helicoidally or spirally winding helix of a worm shaft, having a main body with a helicoidally winding helix element, wherein the helical screw conveyor unit is serviced with little outlay on servicing, the top side of the lateral surface is concavely curved in shell-like form about the longitudinal axis, and the main body has a radial opening for the leadthrough of a fastening region of a worm shaft shank, the helix element has at most one half of one helix turn, the the main body lateral surface has an inner surface for being seated on the fastening region, and the helical screw conveyor unit has at least one fastening element for detachably fastening the main body to the fastening region.

The invention discloses a rapid assembly and split launching method for a shield tunneling machine in a narrow space, which comprises the following steps of: excavating launching holes in two sides of a launching shaft by adopting a mining method, pouring a guide table in the launching shaft, and mounting a launching bracket; a large crawler crane is used for sequentially hoisting a locomotive, a 6 # trolley, a 5 # trolley, a 4 # trolley, a 3 # trolley, a middle shield, a front shield, a cutterhead, an erector, a spiral conveyor and a tail shield, a counter-force frame is installed, a hoisting connecting bridge, a 2 # trolley and a 1 # trolley are hoisted, split starting is temporarily connected, pipe pieces are assembled, tunneling is conducted by 40 m, the 5 # trolley and the 6 # trolley are connected, and normal tunneling can be conducted after the whole shield machine is assembled. According to the invention, the technical problems of rapid assembly and split starting tunneling under the conditions of narrow space and tight construction period requirement in shield construction can be solved.

The utility model discloses screening equipment for modified TPU particles, which comprises a support frame, a screw conveyor and a drying box are sequentially mounted at the top of the support frame from left to right, a screening box communicated with the interior of the drying box is arranged at the bottom of the drying box, a discharge port is formed in the screening box, a maintenance component is arranged on the drying box, and the maintenance component is connected with the screw conveyor. The maintenance part comprises a placement opening and a maintenance plate, the placement opening is formed in the top of the drying box, symmetrically-distributed supporting plates are arranged on the inner side face of the placement opening, the maintenance plate is arranged on the supporting plates, an air heater and an electric telescopic rod are installed on the top of the maintenance plate, and one end of the air heater penetrates through the maintenance plate and is connected with an air outlet pipe. The air outlet pipe maintenance device has the advantages that through the designed maintenance component, the maintenance plate placed on the supporting plate can be reinforced, the maintenance plate can be taken down according to needs, the blocked air outlet pipe and the abraded flapping plate can be conveniently maintained, and the maintenance efficiency is improved.

The invention discloses an intelligent flow production line construction method for prefabricated meter gauge sleepers, and belongs to the technical field of sleeper production. In the production process of prefabricated meter gauge sleepers, the problems that the production process is not intelligent, parameters in all links are not accurately controlled, and the product quality is difficult to guarantee exist. In order to solve the problems, according to the construction method, concrete raw materials are conveyed into a double-spiral stirrer through a spiral conveyor to be stirred, and then operations such as injection into a mold vehicle, high-frequency vibration, steam curing and hydraulic demolding are conducted in sequence. Segmented gradient control is adopted in a heating area of the steam curing chamber, a three-stage humidity compensation mechanism is arranged in a constant temperature area, and dynamic balance cooling is implemented in a cooling area. According to the method, intelligent and precise control over prefabricated meter gauge sleeper production is achieved, the production efficiency and the product quality are effectively improved, and the method is mainly used for industrial production of prefabricated meter gauge sleepers.

The invention belongs to the technical field of mining engineering, and particularly discloses a broken stone conveying device for mining engineering, which comprises a screw conveyor, a blanking bin is arranged above the front end of the screw conveyor, a bracket is mounted below the front end of the screw conveyor, and a driving mechanism is mounted on the surface of the bracket. The device comprises a discharging bin, a turnover mechanism is arranged in the discharging bin, a lifting mechanism is arranged below the turnover mechanism, a positioning block is fixedly installed on the surface of the discharging bin, a cylindrical rod is slidably installed in the positioning block, and a matching rod is fixedly installed at the top of the cylindrical rod. The lifting mechanism and the overturning mechanism are arranged in the discharging bin, the overturning mechanism can discharge large stones and prevent the large stones from falling into the spiral conveyor, the lifting mechanism can play a buffering role, impact force generated when materials fall can be effectively absorbed, vibration and friction of the conveying belt are reduced, and the conveying efficiency is improved. Therefore, the service life of the conveying belt is prolonged.

The invention discloses digital intelligence powder type distribution-free variable viscosity fracturing fluid skid-mounted equipment and a control method thereof, and belongs to the technical field of oil and gas field development. The equipment comprises a stirring mechanism, a feeding mechanism, a water feeding mechanism and a discharging mechanism which are centrally controlled through a control box. The feeding mechanism adopts a first screw conveyor to convey solid materials to the stirring tank body; the water supply mechanism supplies water to the tank through a water supply pump and a water outlet pipe with an electromagnetic valve, and the water quantity is monitored by a water inlet flow sensor; the discharging mechanism outputs the mixed liquid through a discharging pump, and the viscosity of the fracturing fluid is detected in real time through a viscosity sensor. The control box is connected with all the sensors and execution components, and automatic adjustment and closed-loop control of the material proportion are achieved by collecting flow and viscosity data. According to the invention, accurate and automatic preparation of the fracturing fluid is realized, the problems of inaccurate traditional manual proportioning and poor stability are effectively solved, and the fluid preparation quality and the operation efficiency are remarkably improved.

The invention discloses a spiral conveyor intelligent control system based on a variable frequency speed regulation technology, which comprises a data information acquisition module, a conveying analysis calculation module and an intelligent control module, and is characterized in that the data information acquisition module is suitable for performing related data acquisition in the process that a spiral conveyor conveys materials to a loading vehicle; the conveying analysis and calculation module is used for analyzing the loading position and the loading opening of the loading vehicle and calculating the optimal material conveying flow speed and flow, and the intelligent control module is used for intelligently controlling the spiral conveyor according to the information of the loading vehicle and the analysis and judgment result of the conveying analysis and calculation module. The data information acquisition module is electrically connected with the conveying analysis and calculation module, and the conveying analysis and calculation module is electrically connected with the intelligent control module.

The invention relates to a popcorn-shaped water-soluble fertilizer quality screening device after production, and relates to the technical field of fertilizer screening devices.The popcorn-shaped water-soluble fertilizer quality screening device is characterized in that a first discharging opening and a second discharging opening are formed in the side wall of a device shell, and a third discharging opening is formed in the bottom of the device shell; the spiral conveyor is fixedly installed in the device shell, and a discharging port of the spiral conveyor is communicated with the device shell. The fixed end of the motor is fixedly installed on the device shell, the output end of the motor is coaxial with the spiral conveyor and fixedly connected with the spiral conveyor, and the motor is used for driving the spiral conveyor to work. The screening assembly is arranged in the device shell, the screening assembly is connected with the spiral conveyor, and the screening assembly is used for screening the popcorn-shaped water-soluble fertilizer; the transmission assembly is installed on the device shell and connected with the motor and the screening assembly, and the transmission assembly is used for driving the screening assembly to work. The popcorn-shaped water-soluble fertilizer screening device has the effects of screening popcorn-shaped water-soluble fertilizers with different particle sizes and improving the quality of finished products of the popcorn-shaped water-soluble fertilizers.

The utility model relates to the technical field of food processing, in particular to a spiral material scattering mechanism which comprises an auger conveyor, the auger conveyor comprises a conveying pipeline, a rotating shaft is arranged in the conveying pipeline, a spiral blade is axially arranged on the rotating shaft, a hopper is arranged on the conveying pipeline in a communicated mode, and the spiral blade is arranged on the hopper. An adjusting plate is arranged at an outlet of the conveying pipeline and used for adjusting the height of the rotating shaft, the upper portion of the adjusting plate is detachably connected with the conveying pipeline, the lower portion of the adjusting plate is rotationally connected with the rotating shaft, and screen holes are formed in the position, close to the outlet, of the bottom of the conveying pipeline. The screw conveyor is convenient to debug and install, is suitable for various materials, effectively avoids friction between the screw blade and a pipeline, and reduces the risk of food safety.

The invention relates to the technical field of spiral conveying, and discloses a rare earth spiral conveying and discharging system which comprises a rack, a machine shell is arranged on the rack, and the machine shell comprises a shell body; a top plate is arranged on the upper edge of the shell; a feeding hopper is arranged on the top plate; a cover plate is arranged on the top plate; a hinge is arranged on the cover plate, and a material door is hinged to the hinge; a first hinge seat is arranged on the cover plate, a first telescopic rod is hinged to the first hinge seat, a second hinge seat is hinged to the piston end of the first telescopic rod, and the second hinge seat is connected with the material door; a first flange plate is arranged at a port in one side of the shell, a side plate is arranged on the first flange plate, a spiral conveying mechanism is arranged on the side plate, a port in the other side of the shell serves as a material port, a second flange plate is arranged on the outer side of the material port, and the material door controls opening and closing of the material port; by limiting the structure of the machine shell, no deposition space is formed at the position of the material opening, by arranging the material door capable of being opened and closed, rare earth moving in one direction can be rapidly discharged, blockage at the position of the material opening is avoided, and continuous discharging and bagging of the rare earth are guaranteed.

A thermal treatment reactor for feedstocks and method of use. The thermal treatment reactor comprises an infeed assembly, a furnace, a rotary drum, a discharge assembly, and a liberator assembly. The rotary drum may comprise forwarding flights, mixing flights, oscillating flights, and raking pins. The feedstock to be thermally treated enters the reactor through the infeed assembly. The feedstock is fed into the reactor in a controlled manner by means of a screw conveyor system. The thermally-treated product exits the reactor via the discharge assembly, which separates the thermally treated product into a VOC liberator, from whence the product enters into a cooling system to reduce the temperature for safe storage and handling.

The utility model relates to the technical field of melamine cyanurate packaging machines, in particular to a melamine cyanurate packaging machine which comprises a material storage box, a supporting plate, a filter cartridge, a discharging opening, a spiral conveyor, a discharging pipe, a feeding bin, a filtering mechanism and a smashing mechanism. The filter cartridge is fixedly arranged between the supporting plate and the inner top wall of the storage box, the supporting plate is located on the peripheral side of the filter cartridge and is provided with a plurality of discharging openings, the spiral conveyor is fixedly arranged on the storage box and communicates with the storage box, the discharging pipe communicates with the spiral conveyor, the feeding bin communicates with the storage box, and the discharging pipe communicates with the feeding bin. A feeding control valve is fixedly arranged in the feeding bin, the filtering mechanism is arranged in the material storage box and used for driving materials to be screened through the filtering cylinder, and through the technical scheme, the problem that in the related technology, the packaging effect is affected due to the fact that caked materials are likely to be mixed in the packaging process of melamine cyanurate is solved.

The invention relates to the technical field of packaging bag feeding, and specifically to a packaging machine with a secondary feeding function and a feeding method. The packaging machine comprises a supporting platform, a bag supplying machine, a bag filling machine, a screw conveyor and a secondary feeding component. The beneficial effects are as follows: by adding a stepping device of a rack and a gear meshing transmission to the existing packaging machine, the stable switching of the bag body on the workstation is realized, and the stable clamping of the bag body is realized by cooperating with the cylinders distributed in a criss-cross manner. At the same time, the purpose of accurate feeding is achieved by utilizing the cooperation of a weighing device and multiple groups of spiral feedings. The secondary feeding component is utilized to re-weigh and detect the bag body after loading, and the insufficient bag body is timely fed with feeding. The equipment has multiple workstations that act simultaneously, and the whole set of actions is divided into each workstation for execution, so as to improve the packaging speed of the equipment and have sufficient time to fill the packaged material, thereby solving the technical problem of low filling accuracy caused by one-time weighing.