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Bucket wheel stacker reclaimer is an efficient loading and unloading machine used for continuous transportation of both stacking and reclaiming materials in large dry bulk storage yards. The belt is composed of a pitching and horizontal swinging belt conveying arm and its front bucket wheel, rack and running mechanism. The belt can run in both directions. When reclaiming, the materials are taken by the bucket wheel and sent out by the conveying arm. When stacking, the goods transported by the main conveyor are thrown to the storage yard through the conveying arm. There is a walking mechanism and a bucket wheel reclaiming mechanism, The material is conveyed to the loader of the belt conveyor in the stock yard through the transfer mechanism. It is a rail mounted loading and unloading machine that uses bucket wheel for continuous reclaiming and belt conveyor for continuous stacking.
It is a special machine in the bulk material (bulk material) storage yard, which is evolved from the bucket wheel excavator. It can form the storage yard transportation mechanization system with the unloading (ship) machine, belt conveyor, and shipping (truck) machine, with a production capacity of more than 10000 tons per hour. The operation of bucket wheel stacker reclaimer has strong regularity and is easy to realize automation. The control modes are manual, semi-automatic and automatic. Bucket
Wheel stacker reclaimer can be divided into boom type and bridge type according to structure. Some equipment has only one function of reclaiming, called bucket wheel reclaimer. Operation mode Bucket wheel stacker reclaimer has two operation modes: stacking and reclaiming. Bulk materials transported by the belt conveyor will be unloaded to the belt conveyor on the boom through the tail car, and then dumped from the front end of the boom to the stock yard. Through the operation of the whole machine, the rotation and pitching of the boom can make the material pile form a regular shape of trapezoidal section. Reclaiming is realized continuously through boom rotation and bucket wheel rotation. The materials are discharged to the reverse boom belt conveyor through the unloading plate, and then discharged to the belt conveyor in the stock yard through the hopper below the center of the machine for transportation. Through the operation of the whole machine and the rotation and pitching of the boom, the bucket wheel can remove all the materials from the storage pile. The development of domestic bucket wheel stacker reclaimer in China has basically gone through three stages.
In the 1960s and 1970s, small bucket wheel stacker reclaimers were designed in China. Typical models include 3025, 8030, etc., with reclaiming output of 300t/h, 800t/h, and turning radius of 25m and 30m respectively. The 1980s and 1990s were the second stage of the development of bucket wheel stacker reclaimer. Large bucket wheel stackers and reclaimers are gradually used in new bulk material storage yards such as steel plants and power plants for bulk material stacking and transportation, such as Shanghai Baosteel and Qinhuangdao Wharf stockyards. The reclaiming capacity of bucket wheel stackers and reclaimers reaches 2000t/h and the turning radius reaches 40m. Restricted by the domestic conditions at that time, most of the construction of conveying equipment in these stockyards were co manufactured or imported, and even the whole set of bulk material conveying system was imported from abroad. After 2000, domestic bucket wheel stacker reclaimer has developed to a new stage. Up to now, domestic manufacturers have the capacity of 300~6000t/h, 25~60m radius bucket wheel stacker reclaimer series products design and manufacturing.
In this stage, foreign manufacturers still occupy a certain share, but domestic manufacturers have mastered considerable technology and production capacity, and by virtue of service and price advantages, they occupy the mainstream position in the domestic market, and gradually move towards the international market. Bucket wheel stacker reclaimer is a machine for bulk material storage yard, which uses the belt conveyor on the machine for continuous stacking and bucket wheel device for continuous reclaiming. This kind of machinery can be self stacked and self picked up, and its operation is flexible and convenient. It is suitable for strip stacking and bulk storage yard with less types of goods, but the stacking and picking operations of the same machine cannot occur at the same time. Bucket wheel stacker reclaimer is an efficient machine for continuous loading and unloading of bulk materials. It has been widely used in ports, metallurgy, cement, power plants and other industries, and is suitable for stacking and reclaiming of ore, coal, sand and gravel and other goods.
According to different structures, bucket wheel stacker reclaimer can be divided into boom type and portal type. The boom type bucket wheel stacker reclaimer is mainly composed of metal structure, tailcar, cantilever conveyor, traveling mechanism, bucket wheel and driving device, pitching and cantilever slewing mechanism, etc. The belt conveyor on the cantilever is designed in forward and reverse direction. When the conveyor is running in the forward direction, the materials transported from the feed conveyor can be thrown to the storage yard through its head to complete the stacking operation; When the bucket wheel reclaims materials from the stock pile, the cantilever conveyor runs in reverse, and the materials taken by the bucket wheel fall onto the storage yard conveyor through the central funnel at its tail to complete the reclaiming operation. Visual difference between boom type bucket wheel stacker reclaimer, cantilever stacker reclaimer and cantilever reclaimer: boom type bucket wheel stacker reclaimer has one more reclaiming bucket wheel than cantilever stacker reclaimer and one more tailcar mechanism than cantilever reclaimer. Gantry type bucket wheel stacker reclaimer is composed of gantry, movable beam, reclaiming bucket wheel, beam conveyor, crane traveling, movable beam lifting and other mechanisms, while the gantry type bucket wheel stacker reclaimer is more equipped with shuttle stacker conveyor and feeding tail car mechanism than the gantry type bucket wheel reclaimer.
When the gantry bucket wheel stacker reclaimer is stacking, the tailcar will transport the materials to the chute of the stacker conveyor and unload them onto the stacker conveyor, and then transport them to the chute of the mobile conveyor, and finally the mobile conveyor will unload the materials to the stock yard; During reclaiming operation, the bucket wheel rotates to excavate materials, and the materials are discharged to the conveyor in the movable beam through the receiving hopper inside the bucket wheel mechanism, and then transferred to the ground conveyor for delivery out of the storage yard. Gantry bucket wheel stacker reclaimer is commonly seen in power plants. Bucket wheel stacker reclaimer special mechanism and structure Bucket wheel stacker reclaimer is a large bulk material conveying equipment widely used in ports, power, coal, metallurgy and other industries. Bucket wheel stacker reclaimer is composed of many special mechanisms and structures. Each mechanism and structure plays a vital role in its safety and reliability for the safe operation of the whole machine
