Anti-bridging device
AssigneeElex A.G.
InventorErnst Zwahlen
Life of this patent
Estimating the term…
Abstract
Anti-bridging device for a hopper having an upper inlet portion and a lower outlet portion with sidewalls disposed therebetween, the anti-bridging device including at least one anti-bridging member movably attached to one sidewall of the hopper with cooperating elements to raise and lower the anti-bridging member. The cooperating elements for raising and lowering the anti-bridging member are generally an endless belt having at least one upwardly extending member which contacts the anti-bridging member during movement of the belt.
Claims6
A device for preventing bridging in a hopper, the hopper including an upper inlet portion and a lower outlet portion with inclined sidewalls disposed therebetween, said device comprising:
- at least one scraper disposed along at least one of said sidewalls with at least one upper corner pivotally attached at said one upper corner to said one sidewall of said hopper;
- and, dust moving means having at least one upwardly extending member, said upwardly extending member contacting said scraper during movement thereof whereby said scraper is moved upwardly by said member during contact therewith and downwardly after said contact therewith thereby preventing bridging of material at said lower outlet portion.
In combination with an electrostatic precipitator, a device for preventing bridging in a hopper, the hopper including an upper inlet portion in communication with a bottom opening of an electrostatic precipitator and a lower outlet position with inclined sidewalls disposed therebetween, the device comprising:
- at least one scraper disposed along at least one of said sidewalls with at least one upper corner pivotally attached at said one upper corner to said one sidewall of said hopper;
- and, means to contact and raise said scraper whereby said scraper is moved upwardly by said means during contact therewith and downwardly after said contact therewith;
- thereby preventing bridging of material at said lower outlet portion.
Dependencies are inferred from the claim text.