Analysis of poor performance of ultra high molecular weight polyethylene liner used by some Users 2

2, material arch bridge

In reality, because of the environment faced by the enterprise, the design of the silo and the composition of the material are different, some blanking is more smooth, but some are not smooth.  For example: the phenomenon of arch bridge, some enterprises installed on the lining board after the problem can be solved, individual enterprises installed on the lining board, the problem will occasionally appear, this part of the enterprise, blame on the uHMWPE lining plate does not work.  In fact, this is not the case, the installation of the lining plate is still the reason for the emergence of the arch bridge phenomenon.

Analysis of the following points:

First of all, in the enterprise production maintenance is not empty the material bin, long time stay, coupled with the Korean water is too large, natural tuo, production materials will form the arch bridge;  

Second, some enterprises are limited by maintenance funds, although in the bin lined uHMWPE board, but not all, most of the only installed themselves think the problem of the inclined plane, facade ignore.  Such practices, bin often use, if you have stalled for a long time need not, bunker inside material stay for a long time, its weight backlog, forming tuo, when need feeding production, because the product tuo is to spread in the direction of the material force, while the rest of the direction of the resultant force is greater than the downward force on the material, will form the arch of the bridge.  Its reason is like the ancient famous bridge - Zhaozhou bridge design principle.  To solve this problem: first, it must be lined with ultrahigh molecular weight polyethylene board to reduce the friction coefficient;  Then, try to avoid the material for a long time and stored in the bin.