Technology and device for dry collection of titanium dioxide primary product
A technology of titanium chloride and titanium dioxide, applied in the direction of titanium dioxide, chlorine/hydrogen chloride, chlorine/hydrogen chloride purification, etc., to achieve the effect of safe production
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no. 1 example
[0027] Such as figure 1 Shown, the technique that the present invention dry collects the first product of titanium dioxide, comprises the following steps:
[0028] A. After the material at the outlet of the oxidation furnace is cooled, it is sent to the oxidation bag filter 1 for gas-solid separation, that is, according to figure 1 , the material at the outlet of the oxidation furnace is cooled by the cooling duct and then along the figure 1 The pipeline on the left feeds into the oxidation bag filter 1. The oxidation bag filter 1 separates the gas from the solid to obtain the chlorine gas product and the primary product of titanium dioxide.
[0029] B. The primary product of titanium dioxide passes through the rotary feeding valve 4, and then is transported to the primary product silo 2 through a pipeline. An auxiliary conveying gas branch pipe is set on the pipeline, and the primary product of titanium dioxide is conveyed to the primary product silo 2 through the auxiliary...
no. 2 example
[0033] Such as figure 2 Shown, the technique that the present invention dry collects the first product of titanium dioxide, comprises the following steps:
[0034] A. After the material at the outlet of the oxidation furnace is cooled, it is sent to the oxidation bag filter 1 for gas-solid separation, that is, according to figure 2 , the material at the outlet of the oxidation furnace is cooled by the cooling duct and then along the figure 2 The pipeline on the left feeds into the oxidation bag filter 1. The oxidation bag filter 1 separates the gas from the solid to obtain the chlorine gas product and the primary product of titanium dioxide.
[0035] B. The primary product of titanium dioxide enters the small silo 7 through the rotary feeding valve 4, the primary dechlorination screw 5, and the secondary dechlorination screw 6. Simultaneously, supplement dechlorination nitrogen to secondary dechlorination helix 6 through dechlorination nitrogen replenishment branch pipe ...
no. 3 example
[0040] Such as image 3 Shown, the technique that the present invention dry collects the first product of titanium dioxide, comprises the following steps:
[0041] A. The steps are the same as in the second embodiment A.
[0042] B. On the basis of the steps in the second embodiment B, the shafts and shells of the primary dechlorination screw 5 and the secondary dechlorination screw 6 are respectively connected to the cooling water upper water inlet 16 and the cooling water return water inlet 17, for the first product of titanium dioxide Perform water cooling.
[0043] C. Same as step C of the first embodiment.
[0044] The device for implementing the process of the third embodiment is a device for dry collecting the primary product of titanium dioxide chloride. On the basis of the device for dry collecting the primary product of titanium chloride described in the second embodiment, the primary dechlorination spiral 5. A cooling water inlet 16 and a cooling water return inl...
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