A kind of oxidation adjustment equipment for oxidizing pu(iii) to pu(iv)
A technology of equipment and oxidation tower, which is applied in the field of oxidation price adjustment equipment, can solve the problems of unfavorable post-treatment process, increase the burden of tail gas disposal, and reduce the utilization rate of NOx, so as to reduce the disposal burden, respond quickly, and increase the treatment scale.
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Embodiment 1
[0031] A kind of oxidation adjustment device that Pu(III) is oxidized to Pu(IV), such as figure 1 As shown, the equipment mainly includes oxidation tower 5, feed liquid receiving tank 20 and NO X Storage tank 2, wherein the upper end of oxidation tower 5 is provided with feed liquid outlet 17, and the lower end is provided with Pu(III) feed liquid inlet 22 and NO X Feed inlet 6, feed liquid receiving tank 20 and feed liquid outlet 17 on the top of oxidation tower 5 are connected by pipelines; wherein the main body of oxidation tower 5 and the packing in the tower are all radiation-resistant and nitric acid corrosion-resistant stainless steel west tower rings; An electric heating plate 10 is set on the outer wall of the tower 5, so that the temperature of the liquid in the tower is 40°C; a neutron-absorbing material is set in the middle of the oxidation tower 5 10 B 4 c. A demister 14 is installed on the top of the oxidation tower 5 to separate the feed liquid entrained by t...
Embodiment 2
[0041] The difference from Example 1 is that one or more sieve plates are arranged inside the oxidation tower 5 to separate the packing; the heating method of the gasification tank 3 is water bath heating, and the heating temperature is 90 ° C; the heating method of the oxidation tower 5 In order to wind a layer of heating water jacket on the outer wall of the tower, the temperature of the liquid in the tower is 50°C; the neutron-absorbing material placed on the wall of the oxidation tower 5 is 6 LiF; NO X The highest point of the inverted U-shaped tube through which the gas enters the oxidation tower body is 300mm higher than the outlet of the feed liquid.
Embodiment 3
[0043] The difference from Example 1 is that the heating method of the oxidation tower 5 is to wrap a layer of electric heating tape on the outer wall of the tower, so that the temperature of the feed liquid in the tower is 40 ° C; NO X is NO, NO and oxygen are jointly formed by NO X The feed inlet enters the tower, where the oxygen content is twice that of NO; NO X The highest point of the inverted U-shaped tube through which the gas enters the oxidation tower body is 400mm higher than the outlet of the feed liquid.
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