US 11,320,204 B2 · Continuous concentrate feeding equipment

Abstract

A continuous concentrate feeding equipment of the present invention, which can supply the concentrate to a smelting furnace continuously when the concentrate is received, includes a pressure-adjusting tank that temporarily accumulates granular concentrate; a lift tank that receives the concentrate from the pressure-adjusting tank and discharges the concentrate to a smelting furnace; an air passage for introducing compressed air into the pressure-adjusting tank and the lift tank, respectively; and control means for controlling the compressed air, and the concentrate is continuously supplied from the lift tank to the smelting furnace even when the lift tank receives the concentrate from the pressure-adjusting tank by the control means.

Claims4

Dependent claims

A continuous concentrate feeding equipment comprising:

a pressure-adjusting tank that temporarily accumulates granular concentrate;
a lift tank that receives the concentrate from the pressure-adjusting tank and discharges the concentrate to a smelting furnace;
an air passage for introducing compressed air into the pressure-adjusting tank and the lift tank, respectively;
and
pressure control means for controlling the introduction of the compressed air, and
wherein the concentrate is continuously supplied from the lift tank even when the lift tank receives the concentrate from the pressure-adjusting tank by the pressure control means.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/417,544Filed 6 Aug 2020

Priority

JP JP2019-1475819 Aug 2019

Published

US 2022/0049898 A117 Feb 2022

Granted

3 May 2022

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

F27D 3/0026
Charging or loading melting furnaces with material in the solid state: introducing additives into the melt
B65G 53/04
Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam: conveying materials in…
B65G 53/4691
Gates or sluices, e.g. rotary wheels: of air-lock type, i.e. at least two valves opening asynchronously
B65G 53/66
Details: use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or…

Continuous concentrate feeding equipment

Life of this patent

Continuous concentrate feeding equipment

Life of this patent

Abstract

Claims4