711 results about "Reclaimer" patented technology

The invention relates to a port warehousing logistics technology, in particular to a bulk material yard unmanned stacking/reclaiming technology. Firstly, a database is established; secondly, operation instructions, automatic stacking/reclaiming operation modes and control instructions for automatic stacking/reclaiming operations are generated through input operation kinds of goods and the planning work amount; thirdly, the relevant instructions are sent to a central control PLC and then transmitted to the corresponding local stacker/reclaimer PLC through the industrial network; fourthly, the local PLC controls the operation of all components of the stacker/reclaimer to complete the local operation control. At the same time, a material stack laser scanning device is used to scan the material yard condition, and the scanned result will then be transferred to a central control processing unit through the industrial network; fifthly, the central control processing unit achieves the stack type scan data processing of the stacker/reclaimer to generate new instructions which will then be sent to the corresponding local stacker/reclaimer PLC; sixthly, a handle operating panel arranged inside a central control room can be taken as a backup means of manual operation under special circumstances. The invention can be applied to large-scale raw material yards, such as ports, wharfs, open warehouses, mine stacking yards, as well as iron and steel enterprises.

The invention provides an automatic stacking/reclaiming system for a bulk cargo storage yard. The automatic stacking/reclaiming system comprises a stacker distributed in the storage yard and provided with a stacking cantilever, a reclaimer distributed in the storage yard and provided with a reclaiming cantilever, a first laser scanning device installed on the stacking cantilever and used for acquiring scanning data of the storage yard, a second laser scanning device installed on the reclaiming cantilever and used for acquiring the scanning data of the storage yard, a stacking positioning device and a reclaiming positioning device for acquiring GNSS positioning information, a stacker control device, a reclaimer control device, a remote stacking processing device and a remote reclaiming processing device. The stacker control device and the reclaimer control device acquire and output the GNSS positioning information, receive a stacking control signal and a reclaiming control signal, and control the stacker and the reclaimer to execute corresponding stacking/reclaiming actions according to the control signals. The remote stacking processing device and the remote reclaiming processing device receive a stacking instruction and a reclaiming instruction input by a peripheral user, acquire coordinate information of the corresponding storage yard according to the instructions, the scanning data and the GNSS positioning information, and generate stacking/reclaiming path information to serve as the stacking/reclaiming control signals to be output to the stacker control device and the reclaimer control device. The automatic stacking/reclaiming system is based on GNSS positioning, and is high in accuracy and low in cost, data can be shared, and automatic operation of the bulk cargo storage yard is achieved.

The invention discloses an automatic assembly production line of a wall socket. The automatic assembly production line comprises a bottom box automatic assembly part and a panel bottom box automatic assembly part. The bottom box automatic assembly part is of a rotary plate type structure which sequentially arranges multiple processes on the periphery of a rotary plate. A transmission mechanism which integrates transmission and outputting on the same side is adopted by the panel bottom box automatic assembly part, and multiple working positions are respectively arranged in front and in rear of the transmission mechanism. In addition, a bottom box positioning and overturning mechanism between the two parts overturns a bottom box which is assembled by the bottom box automatic assembly part to a preset position, a grabbing mechanical arm in the panel bottom box assembly part is used for moving the bottom box onto a panel, a transmission mechanism of the panel bottom box automatic assembly part transmits the bottom box to a screw feeding mechanism, the socket undergoing screw feeding assembly is moved to a finished product area through a material taking mechanical arm. The automatic assembly production line of the wall socket has the advantages of being high in automation degree, small in occupied space and high in production efficiency.

A method for reclaiming CO2 absorbing chemical(s) from a lean aqueous CO2 absorbent leaving a regeneration column (8), where lean absorbent (30) is withdrawn and flashed (31) to generate a vapor that is compressed (34) and returned into the regeneration column as stripper gas (37), where a part of the lean absorbent (20) is withdrawn and introduced into a reclaimer (21) in which the lean absorbent is boiled to generate a gas phase (23) that is withdrawn and returned into the regeneration column as reclaimed absorbent, and a liquid phase containing impurities (24), wherein the gaseous phase that is withdrawn from the reclaimer is compressed (34) together with the vapor part (33) from the flashing of the lean absorbent, to generate a pressure in the reclaimer that is lower than the pressure in the regeneration column, and a reboiler (11) for carrying out the method, are described.

This invention provides an apparatus for handling bulk material as located at circular or linear storage site. The apparatus can include both a stacker and a reclaimer, wherein the improvement in technology is described in the reclaimer portion of the apparatus. More specifically, a reclaimer apparatus is described having a platform mounted on one or more wheel truck assemblies arranged to roll on at least one rail. The platform having a plurality of means to support a pivotal reclaim conveyor boom and a fixed incline conveyor assembly. A pivotal reclaim conveyor assembly is made of a head shaft and a tail shaft and means to support a plurality of rakes, wherein the plurality of rakes are spaced at intervals in a continuous loop around the pivotal reclaim conveyor assembly. The pivotal reclaim conveyor assembly being driven by a first motor. The fixed incline conveyor assembly having a head shaft and a tail shaft, the incline conveyor assembly having means to support a plurality of buckets, the plurality of buckets being spaced at intervals in a continuous loop around the inclined conveyor assembly, the plurality of buckets being positioned to receive bulk material from the pivotal reclaim conveyor assembly, the incline conveyor assembly being driven by a second motor.

The invention discloses a protective device of an elevating mechanism of a stacker-reclaimer, which aims at overcoming the shortcomings that a bucket wheel of the traditional stacker-reclaimer makes an elevating motion by using only one wire rope, and the sudden fracture of the wire rope can easily cause safety accidents to people or the device, influence the regular production and increase the repair cost. In the invention, the elevating mechanism is provided with two parallel wire ropes, the top of a stand column and a bucket wheel arm support are respectively provided with two parallel sets of pulley blocks corresponding to the wire ropes, wherein the head ends of the wire ropes are respectively fixed on two coaxial rollers of a hoister, the tail ends of the wire ropes are fixed on a hoister platform, and a balancing device which is connected with the tail ends of the two wire ropes is installed on the hoister platform. When one wire rope suddenly fractures, the other wire rope alone can maintain the balance of the bucket wheel arm support, can not cause damage to the stacker-reclaimer or result in personal safety accidents, and can gain time for the replacement of the wire rope, thereby greatly lowering the repair cost, and ensuring the safe and regular production.

The invention discloses a double-portal type round stock ground scraper stacker-reclaimer, comprising a center stand column, a travelling device I, a portal I, a scraper reclaimer I, a rotary steel structure I, a cantilever stocker, a travelling device II, a portal II, a scraper reclaimer II and a rotary steel structure II, wherein the center stand column is fixed on ground foundation in the center of a stock ground; the cantilever stocker, the portal I and portal II respectively rotate by taking the center stand column as the center of rotation; the rotary steel structure I is connected with the center stand column by a rotary bearing, one end of the portal I is hinged with the rotary steel structure I, the other end is supported on the travelling device I operating on the round orbit on the upper part of a stock stop wall; one end of the scrapper reclaimer I is hinged with the lower part of the portal I, and the other end is hung on the portal I; the rotary steel structure I is positioned below the rotary steel structure II, and the device I and the device II are arranged in the same way. In the invention, two scraper reclaimers arranged on respective portal take two stocks simultaneously, thus realizing the purpose of mixing evenly, and having simple structure and high production efficiency.

The invention discloses a corn thresher with drying and screening. B. Driven pulley, heating plate, belt, elastic telescopic rod, filling door, filling hopper, motor B, driving pulley, filter screen, air outlet pipe, threshing rod, roller, threshing box, sorting plate, roller , slide rail, corn collection box, cob core collection box, and material retrieving door; the invention adds a heating plate before threshing, which can dry corn cobs, facilitate threshing, and has a sorting board after threshing, which can sort out Corn kernels with different diameters can be used in different categories. There is a shell outside the threshing device, which can effectively reduce dust entering the atmosphere, protect the environment and prevent operators from absorbing a large amount of dust.

The invention discloses a multi-time double-faced air-blown reclaimer of discarding tobacco shreds consisting of a synchronous pulley, a groove conveyer belt, gas nipple set system for filter tip detection and left and right blowing, a gas nipple set system for uncleaned cigarette detection and blowing, a PLC system, etc., so as to realize the rectilinear and interstitial motion. By adopting the technology of secondary blowing for each end of the discarding cigarette and adding the uncleaned cigarette detection and blowing system, the defects of one-go blowing for a single side or for two sides can be effectively overcome so as to multiply improve the reclaiming effect of the discarding tobacco shreds. Owing to the treatment of the uncleaned cigarettes, the reliable separation of the tobacco shreds and the cigarette paper of the filter tip can be guaranteed. The reclaimer of the invention has reasonable design, simple structure, good applicability and high popularization and application value.

The invention relates to a combined type furrow residual film reclaimer which can realize the recovery operation of furrow film of a cropland or whole residual film by a machine. The invention is characterized in that: break shovels, spilt spoke disc type film drawing wheels and film collecting harrows with elastic teeth are all designed in a single way, and the quantity of the break shovels, the spilt spoke disc type film drawing wheels and the film collecting harrows with elastic teeth can be determined according to the number of rows and row spacing of crops, and the spaces between the break shovels, the spilt spoke disc type film drawing wheels and the film collecting harrows with elastic teeth are adjusted to realize the furrow residual recovery operation in the cropland. The break shovels, the spilt spoke disc type film drawing wheels and the film collecting harrows with elastic teeth can also be arranged according to the working width of the reclaimer to realize the whole residual film recovery operation by the machine. The combined type furrow residual film reclaimer has the advantages that the use functions of the reclaimer are expanded, multiple operations of scarification, film drawing, film reclaimation, etc. can be finished at one time, thereby effectively promoting the efficiency and working scope of machines. The reclaimer is also characterized by reasonable structure, flexible combination, convenient debugging, simple operation and low consumption, thus having wide application prospect and having important practical significance for the development of agricultural mechanization of China.

The invention discloses a closed coal yard comprising a closed net rack, a feed mechanism, a discharge mechanism and a reclaiming mechanism. The feed mechanism comprises a feed belt conveyor. The discharge mechanism comprises a stacker, a cantilever belt conveyor and a column. The reclaiming mechanism comprises a reclaiming belt conveyor and a scraper reclaimer. A feed yard belt conveyor and a stacking travel rail are arranged on the upper portion of the column. A reclaiming travel rail is arranged in the middle of the column. The stacker vertically moving along a coal pile is arranged above the feed belt conveyor; the feed belt conveyor conveys coal to the cantilever belt conveyor of the stacker. The scraper reclaimer regulates pitching angle thereof through a cable hosting mechanism according to the shape of the coal pile. The scraper reclaimer vertically moves along the coal pile through the reclaiming travel rail. The closed coal yard is high in storing capacity, convenient to continuously expand, high in automation level, small in floor area, and economical and energy saving; the closed coal yard is applicable to large storage and distribution coal bases and power plants continuously expanded.

The invention relates to a loading and unloading system for a 3D hot bending machine. The loading and unloading system comprises a machine frame, and a 2D glass feeding assembly, a 2D glass reclaiming manipulator, a 2D glass positioning platform, a 2D glass loading manipulator, a mould placing platform, a mould handling manipulator, an upper mould handling manipulator, a 3D glass unloading manipulator, a 3D glass positioning platform, a 3D glass plug-in manipulator and a 3D glass storage assembly which are arranged on the machine frame, wherein the mould handling manipulator is butt-jointed with the 3D hot bending machine and the mould placing platform, the upper mould handling manipulator is butt-jointed with the mould placing platform, the 2D glass reclaiming manipulator is butt-jointed with the 2D glass feeding assembly and the 2D glass positioning platform, the 2D glass loading manipulator is butt-jointed with the 2D glass positioning platform and the mould placing platform, the 3D glass unloading manipulator is butt-jointed with the mould placing platform and the 3D glass positioning platform, and the 3D glass plug-in manipulator is butt-jointed with the 3D glass positioning platform and the 3D glass storage assembly. The loading and unloading system provided by the invention can be combined with the 3D hot bending machine to form an automated assembly line.

An anti-collision control method of bucket-wheel stacker-reclaimers comprises the following steps that the respective coordinate position states of the two bucket-wheel stacker-reclaimers are obtained through a positioning system; the revolving angle states of the two bucket-wheel stacker-reclaimers are obtained through a revolving angle encoder; the respective coordinate position state data information and revolving angle state data information of the two bucket-wheel stacker-reclaimers are transmitted to a central control unit PLC; the central control unit PLC calculates the shortest distance of the two bucket-wheel stacker-reclaimers on a horizontal plane projection according to the data information, and compares the worked out shortest distance with a set value; a control instruction on the bucket-wheel stacker-reclaimers is sent to PLCs of the two bucket-wheel stacker-reclaimers through an industrial network according to the comparison result; and the PLCs of the two bucket-wheel stacker-reclaimers determine whether to carry out an alarming operation or stopping operation according to the received control instruction.

The invention discloses an automatic clamping mechanical hand device for milling machining an optical lens, and the automatic clamping mechanical hand device comprises a blank storage rack, a blank taking mechanism, an intermediate transfusion mechanism, a blank feeding mechanism and a control cabinet, wherein the blank taking mechanism is arranged on the top of the blank storage rack, the intermediate transfusion mechanism is arranged on one side of the blank storage rack, the blank feeding mechanism is connected with the intermediate transfusion mechanism, and the control cabinet is respectively connected with the blank taking mechanism, the intermediate transfusion mechanism and the blank feeding mechanism through a conducting wire. The blank taking mechanism, the intermediate transfusion mechanism and the blank feeding mechanism are controlled by the control cabinet to be coordinated and cooperated with one another, and a work-piece is absorbed by the blank taking mechanism and then is transmitted to the blank feeding mechanism through the intermediate transfusion mechanism. Due to the adoption of the automatic clamping mechanical hand device, automation for clamping the work-piece can be realized, accuracy in positioning, convenience in operation, rapidness and high efficiency can be realized, the machining precision of a milling grinding machine is higher, the labor intensity of workers can be saved, and the production efficiency can be improved.

The invention discloses a method for controlling operation speed of a cantilever crane rotating mechanism of a cantilever type bucket wheel reclaimer and provides the method capable of increasing material taking efficiency of the cantilever type bucket wheel reclaimer. The method for controlling the operation speed of the cantilever crane rotating mechanism of the cantilever type bucket wheel reclaimer includes: determining a narrow material pile boundary area: setting the length in the horizontal direction corresponding to the boundary area to be A, and determining the rotating angle beta corresponding to the boundary area; comparing an arbitrary included angle phi formed by a cantilever crane during rotating and a rail with the rotating angle beta, wherein if phi is larger than or equal to beta, the rotating speed Vn=V0*1/cos(phi), and if phi is smaller than beta, the rotating speed Vn'=K*V0*1/cos(phi)*1/cos(alpha); if the theoretical rotating speed Vn' of the boundary portion is smaller than the largest material taking rotating speed, and the real-time current value of a bucket wheel motor is smaller than the rated current value of the bucket wheel motor, taking the theoretical rotating speed Vn' on the boundary portion obtained through calculation as the boundary material taking rotating speed; otherwise, taking the largest material taking speed as the material taking rotating speed on the boundary portion.

A system for managing dropped objects of a database. The system comprises a finite amount of disk space for temporarily storing the dropped objects. The system further includes an indexer for assigning time stamps to each of the dropped objects and a reclaimer for reclaiming the dropped objects based on their time stamps. These time stamps can also be used to guarantee the amount of time the object remains in the recycle bin.

The invention relates to the field of production and processing of parts and components of heavy trucks and particularly relates to automatic loading and drilling equipment of a brake disk casting ofa heavy truck. The equipment comprises a processing platform, a loading transmission belt, two fetching mechanical hands, a positioning clamping assembly, a drilling processing assembly and an unloading transmission belt, wherein the positioning clamping assembly comprises a rotation mechanism and a clamping mechanism; the rotation mechanism comprises a rotation disk which is disposed horizontallyand can be rotated; the clamping mechanism comprises a clamping claw which can clamp a brake disk; the drilling processing assembly comprises drill bits which can be rotated and liftable; and the drill bits are disposed annularly along the axis of the rotation disk. The automatic loading and drilling equipment of the brake disk casting of the heavy truck disclosed by the invention has the beneficial effects that a to-be-processed brake disk is automatically loaded and positioned; manual labor strength is reduced; working efficiency is increased; processing accuracy is increased; multiple holes with annular distribution are disposed at a time in the brake disk; working efficiency is increased; and a processing error caused by multiple times of adjustment is reduced.

The invention discloses a self-walking intelligent pile body measuring system, a self-walking dolly is installed on a guide rail at the top of a stockyard, under the control of a control system, a driving device works and drives the self-walking dolly to move forward, move backward or stop on the guide rail, and therefore a laser scanner is driven to move in the stock yard and acquire information of coals in a coal yard, and finally a three-dimensional figure and a measuring result of the stock yard are generated in a coal inventory processing system. According to the self-walking intelligent pile body measuring system, according to requirements of stock yard managers at present, the stock yard can be inventoried at any time without a bucket wheel machine or a stacker-reclaimer, and the degree of automation is high. The problems that in the prior art, a laser scanner is installed on a stacking arm or a stacker-reclaimer, and efficiency of measuring work and stacking-reclaiming work is low are overcome, and the efficiency of the measuring and stacking-reclaiming work is improved.

The invention discloses remote automatic control system and method for bucket wheel stacker reclaimers. According to the working mode, the bucket wheel stacker reclaimers are divided into three pieces of independent equipment for participating in interlock control of a stockline in a stock yard; a belt penetrating the stacker reclaimers has three running states for participating in interlock control of the stockline in the stock yard; and corresponding logic processing is performed to state signals and control signals of the divided equipment participating in interlock control. According to the invention, stockline processes comprising the stacker reclaimers are distinguished accurately, when an interlock program of the stockline processes is written in a PLC (Programmable Logic Controller), each equipment formed by dividing the stacker reclaimers serves as an individual in the processes for processing, and is automatically controlled according to the state of upstream and downstream equipment, so that the defect can be solved that in an automatic control system for a stock yard, interlock control can not be performed to the stacker reclaimers and other equipment, full automation of the stacker reclaimers can be realized, and the production efficiency of the stock yard, the product quality and the automation control level of the whole stock yard can be improved greatly.

The invention relates to an automatic pipe cutting machine and belongs to the technical field of pipe cutting equipment. The automatic pipe cutting machine mainly solves the problem that an existing pipe cutting machine is not suitable for cutting square pipes. The automatic pipe cutting machine is mainly characterized by comprising an automatic material storage and distribution frame, an automatic material taking mechanism, a material conveying rail, a material pushing system, a cutting system, a sizing and locating mechanism and a discharging frame, wherein the cutting system comprises an automatic clamping mechanism and an automatic cutting mechanism; the sizing and locating mechanism is composed of a sizing and locating box, a large guide rod, an upper girder, uprights, an oil cylinder and a large linear bearing; the sizing and locating box comprises a front panel, a rear panel, a small linear bearing, a small guide rod, a locating striking board, a spring pressing board, a spring clamp, a nut, a spring and a sensor; the uprights at the two sides of the sizing and locating mechanism are fixed to beams at the two sides of the upper end of the discharging frame respectively. The automatic pipe cutting machine has the advantages that the length of a product needing cutting is not limited, automatic material distribution, automation material taking, automatic material conveying and automatic clamping are achieved, and the automatic pipe cutting machine is mainly used for automatically cutting rectangular pipes.

The invention discloses a reclaiming control method of a bucket-wheel reclaimer and the bucket-wheel reclaimer. The bucket-wheel reclaimer is provided with a first detecting device for detecting a distance between a bucket wheel and a material. The method comprises the steps of: detecting the distance between the bucket wheel and the material, calculating a horizontal reclaiming depth of the bucket wheel according to the distance between the bucket wheel and the material, a radius of the bucket wheel and an angle between the first detecting device and a horizontal plane, controlling a bucket-wheel reclaimer traveling mechanism to stop advancing when the horizontal reclaiming depth is more than or equal to a set reclaiming depth threshold value so as to precisely control the horizontal feed distance of the bucket wheel, guarantee the stability of the reclaimed material flow, prevent the overloading caused by the excessive reclaiming depth of the bucket wheel, avoid the failure and guarantee the application safety of the bucket-wheel reclaimer.

The invention discloses a construction method for sliding and replacing a whole body of a jacking and revolving bearing of a revolved body of a stacker-reclaimer, and belongs to the technical field of replacing components of the stacker-reclaimer in iron-smelting raw material yards. The construction method comprises the following steps: before machine halt construction, firstly manufacturing jack supporting beams, safe piles and a stirrup, mounting the jack supporting beams, and mounting the stirrup; selecting hydraulic jacks, and erecting the selected hydraulic jacks; sealing the whole body of the revolved body of the stacker-reclaimer, manufacturing a sliding device of the revolving bearing, mounting the manufactured sliding device, and dismounting and removing components which have influence on the horizontal sliding of the revolving bearing; sliding the whole body of the jacking and revolving bearing of the revolved body, replacing the slid whole body of the jacking and revolving bearing of the revolved body, and mounting the components which have influence on the horizontal sliding of the revolving bearing. The construction method has the advantages that the problems that a large-scale vehicle type crane needs to be used during replacing the revolving bearing of the stacker-reclaimer in the iron-smelting raw material yards, the construction time is long, the occupied site is large, the construction cost is high and influence on the production is great; the method is simple and easy to operate, and the construction cost is reduced; the construction site is reduced, the whole construction time of jacking and sliding is shortened, and influence on the production is reduced; double safety facilities of the sealed whole body and the safe piles are adopted, so that the safety guarantee is supplied.

The invention provides a method and a device for controlling the reclaiming flow of a bucket wheel type stacker reclaimer. As the reclaiming flow of a bucket wheel type motor is positively related to a bucket wheel current value or a bucket wheel voltage value of the reclaimer, a current reclaiming flow of the reclaimer is obtained through the bucket wheel current value or the bucket wheel voltage value of the reclaimer. Furthermore, a target reclaiming flow is compared with the current reclaiming flow, and the rotating speed of a cantilever of the stacker reclaimer is adjusted through PI operation. As the reclaiming flow of the reclaimer is related to the rotating speed of the cantilever, control of the reclaiming flow can be achieved by adjusting the rotating speed of the cantilever, the reclaiming flow is maintained constant, and the working efficiency is improved.

Disclosed are a reclaimer reclaiming flow control method and a reclaiming flow control system. The system comprises a belt weigher connected with a cantilever crane, a detection transducing unit for detecting active power of a bucket-wheel motor or the pressure of a hydraulic motor, a input and output unit, a control unit and a cantilever crane rotation drive inverter; according to the motor active power or the hydraulic motor pressure value, real-time flow is obtained; relevant parameters of a real-time flow relation model obtained according to the motor active power or the hydraulic motor pressure value are corrected or revised by the flow value detected by the belt weigher, and the control unit makes the relation model more precise through self-learning; current reclaiming flow is calculated according to the real-time flow relation model by the motor active power or the hydraulic motor pressure value, PID control is conducted by using the calculated current reclaiming flow as negative feedback and given target flow, and the PID control target is the cantilever crane rotation drive inverter; the rotation speed of the cantilever crane is adjusted by adjusting the given speed of the inverter to control the reclaiming flow.

An air cushion conveyor stacker reclaimer device and a method thereof, wherein burial of enclosed air cushion outfeed conveyors eliminates the need for costly, reinforced underground tunnels and walkways, wherein overhead suspension of air cushion infeed conveyors eliminates the need for construction of raised walkways and costly ground support structures, wherein lightweight air cushion conveyor stacker devices eliminate the need for massive counterweights, and wherein the fully exploited method for stacking and reclaiming bulk materials via enclosed tubular components, stacking boom curtains, and/or domed enclosures essentially eliminates adverse environmental impact.

The present invention relates to an improved stacker reclaimer apparatus for building up and discharging bulk material. The improved stacker reclaimer apparatus includes only one stacker bearing to separate the stacker machine from the reclaimer machine. A torque reaction member is rotatable connected to the stacker upper column. The torque reaction member is made of an arm portion and a torque arm bearing frame.

The invention discloses a wind tunnel experiment method of pulverized coal piling-up dusting rules. Experimental equipment or instruments are utilized, such as experimental wind tunnels, model machines of stacker-reclaimers, anemographs, microscale weighing scales, drying boxes and screening instruments; and by means of measurement of the dusting amount of four coal types comprising raw coal, large-mine raw coal, water washed coal and clean coal under a natural moisture content, the experimental correlation between the piling-up dusting rate and environmental wind speed, and loading and unloading heights satisfies the equation that beta=k*U<3.13>*H<1.64>, and correction factors k of the four coal types are obtained. Researches show that a certain relation exists between dusting quantity and entrainment air quantity during coal loading and unloading processes, and the values of the k are different if coal types are different. The wind tunnel experiment method is an effective method of being capable of being combined with pulverized coal piling-up dusting rule theoretical analysis, and is convenient to implement, strong in practicality, and capable of measuring the dusting quantity of different coal types along with changes of the loading and unloading heights and the wind speed. Therefore, the dusting rules during piling-up operation of coal can be explored, and basic data are provided for port dust prevention and treatment.

The invention discloses a circuit board material layer pre-laminating device which comprises a machine frame. A PP sheet feeding mechanism, a pre-laminating table, a transferring table, a core board feeding mechanism and a partition paper discharging mechanism are sequentially arranged on the machine frame from left to right. A slide bearing frame is arranged on the machine frame in a left-right mode. A PP sheet picking mechanical hand, a core board transferring mechanical hand, a core board feeding mechanical hand and a partition paper discharging mechanical hand are sequentially arranged onthe slide bearing frame from left to right. The PP sheet picking mechanical hand is used for picking a PP sheet from the PP sheet feeding mechanism and putting the PP sheet onto the pre-laminating table. The core board feeding mechanical hand is used for picking a core board from the core board feeding mechanism and putting the core board onto the transferring table. The partition paper discharging mechanical hand is used for picking partition paper between two core boards from the core board feeding mechanism and putting the partition paper onto the partition paper discharging mechanism. Thecore board transferring mechanical hand is used for picking a core board from the transferring table and putting the core board onto the pre-laminating table. By means of the circuit board material layer pre-laminating device, labor can be saved, production efficiency can be improved, the error rate is reduced, and the product quality is improved.

The invention discloses a semi-portal scraper reclaimer, which is characterized by comprising two parallel tracks (1), a semi-portal machine frame (2), a first traveling mechanism (3), a second traveling mechanism (26), a third traveling mechanism (27), a fourth traveling mechanism (28), a scraper chain driving device (4), a scraper material taking arm (5) and a winch device (6). The semi-portal scraper reclaimer can be operated back and forth between a plurality of material piles, thereby achieving scraping of various materials through less devices and full-automatic operation mode, being capable of reducing human labor, and saving labor.

The invention belongs to the technical field of stacker reclaimers, particularly relates to a bucket-wheel reclaimer. The bucket-wheel reclaimer comprises a chassis, a sliding box is arranged at one end of the chassis in a sliding manner, a rotating seat is arranged on the sliding box in a rotating manner, a support is fixedly arranged on the rotating seat, a material reclaiming arm is hinged on the support, a first material conveying rail is arranged on the material reclaiming arm, material reclaiming bucket wheels are connected with the first material conveying rail, a third hydraulic cylinder is arranged on the rotating seat, a slewing bearing is arranged at the other end of the chassis in a rotating manner, an output arm is hinged on the slewing bearing, a second material conveying rail is arranged on the output arm, a material conveying hopper is arranged at the upper end of the output arm, and a fifth hydraulic cylinder is arranged on the slewing bearing. The chassis can be adjusted flexibly, the material reclaiming arm and the output arm can be moved backward and frontward, leftward and rightward, and can be lifted up and down, and are flexible to adjust, material reclaiming, material unloading and material loading scope is expanded, working efficiency is increased, and the bucket-wheel reclaimer is widely adaptable to truck loading of materials in bulk in the areas of mines, coal yards and the like and particularly adaptable to small working areas.