36results about How to "Effective sorting and recycling" patented technology

The invention belongs to the field of logistics transferring, and provides a transferring, shifting and collection method for goods. The transferring, shifting and collection method aims at overcoming the defect that the existing transferring and shifting efficiency for goods is low. The method includes the following steps of throwing raw goods a and raw goods b, tearing films of the raw goods a and the raw goods b, conveying the raw goods a and the raw goods b to a goods shifting device, shifting goods on the raw goods b to the raw goods a till the goods reach the threshold value height, forming new goods a, and wrapping films on the new goods a; throwing the raw goods a again; forming recycle pieces by the raw goods b where all the goods are shifted, wherein each recycle piece comprises corrugated paper and a tray; moving the recycle piece to a corrugated paper collection device so that the corrugated paper can be collected, and conveying the trays to a tray collection device so that the trays can be collected; throwing a set of raw goods b again, repeated the steps, transporting out a tray set when the tray set is formed after the number of the collected trays reach a certain value, and transferring out the corrugated paper set after the corrugated paper set is formed when the corrugated paper at the corrugated paper collection device reaches a certain height. The transporting and loading efficiency and reliability are improved, the corrugated paper and the trays are efficiently classified and recycled, and the method is suitable for the logistics transportation process.

The invention discloses a wide-grain-grade double-dense-medium process for separating all coarse coal slime. The wide-grain-grade double-dense-medium process includes that raw coal is preliminarily sieved, manually picked and graded, then oversize products can be used as coarse grain coal, the coarse grain coal is fed into a non-pressure tri-product dense-medium cyclone to be separated, undersize products are concentrated and graded and then are dehydrated in an underflow manner to be used as fine grain coal, the fine grain coal is fed into a pressure tri-product dense-medium cyclone to be separated, and excess flow is fed into a flotation filter-press system, so that the coal slime can be separated; qualified suspension liquid of a fine grain coal dense-medium separating system is provided by coarse grain clean coal of a coarse grain coal separating system, lower branches of coarse grain middling coal primary-section medium removing equipment and branches of coarse grain clean coal and coarse grain middling coal magnetic separation concentration; dilute suspension liquid of coarse grain gangue products and dilute suspension liquid of middling coal and gangue products of a fine grain coal system are treated together; magnetic separation tailings are used as wetting water or primary spray water for grading screens. The wide-grain-grade double-dense-medium process has the advantages that the fine grain coal dense-medium system has a medium automatic generating function, all the coarse coal slime can be efficiently separated by dense media, the suspension liquid is circulated in a closed-loop manner, the separation efficiency is high, the products are flexible in structure, and the production and operation costs are low.