rotary kiln is used to reduce the ore to phosphate in the cooking process for the production of phosphoric acid and method for solving the problem of formation of rings in the tail of the oven during the cooking process for the production of phospho acid risk

摘要

the invention relates to a rotary kiln for reducing phosphate ore in a firing process for the production of phosphoric acid, comprising a furnace body, a furnace head box, a box of a furnace tail and training device to cause rotation of the a furnace body, a burner of fuel is placed in the box head of furnacea supply tube and an outlet port connected to a hydration tower is located at the level of the external box of cock oven, the upper part of the body of the oven does not include air hose, the outlet port being in the range of the radius of the body of furnace with the axis of the rotary kiln as a center.and the direction of travel of the smoke in the exhaust vent is substantially parallel to the direction of the axis of rotary kiln and has an included angle less than 45 degrees to the latter.when using the rotary kiln according to the present invention the cooking process for the production of phosphoric acid, the raw materials used by the company of head of furnace, the fuel burner is switched on for heating, the raw material of ore phosphate is reduced under a condition of high temperature in order to produce smoke coming out of the oven.in the present invention, the smoke from the stove may be led out without great delay, thereby preventing the natural sedimentation centrifugal to the tail of the kiln, so that the smoke from the stove metaphosphoric acid directly into the tower hydrat cooperation with the smoke from the stove.the present invention can effectively reduce the phenomenon of the formation of rings in the tail of the rotary kiln furnace.