Full-temperature-range pressure-swing adsorption method for tail gas treatment in pharmaceutical factory
A pressure swing adsorption, full temperature range technology, applied in combustion methods, gas treatment, separation methods, etc., can solve the problems of ineffective removal of VOCs, environmental health, short device life, high cost, reduce investment and energy consumption, The effect of low energy consumption and cost, short process
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Embodiment 1
[0029] Such as figure 1 As shown, a full temperature range pressure swing adsorption method for tail gas treatment in a pharmaceutical factory, the steps of the method are as follows:
[0030] (1) Dust removal process, the pharmaceutical factory tail gas from the spray drying section enters the dust collector, and the dust with large particles and specific gravity in the tail gas settles down due to the effect of gravity and falls into the ash hopper, and the gas containing finer dust passes through the filter When feeding, the dust is blocked, and the exhaust gas of the dust-free pharmaceutical factory is obtained through the dust collector;
[0031] This process adopts a dry bag filter, which is suitable for collecting fine and dry non-fibrous dust. This dry bag filter is arranged in sequence from top to bottom with an upper box, a middle box, a lower box, Ash cleaning system and ash discharge mechanism, the upper box, the middle box, and the lower box are equipped with fil...
Embodiment 2
[0041] Such as figure 1 As shown, a full temperature range pressure swing adsorption method for tail gas treatment in a pharmaceutical factory, the steps of the method are as follows:
[0042] (1) In the dust removal process, the exhaust gas from the pharmaceutical factory from the spray drying section enters the dust collector, and the dust-containing gas enters the ash hopper of each compartment from the air inlet uniform flow pipe of the dust collector, and is guided by the ash hopper diversion device. The dust particles are separated and fall directly into the ash hopper, while the finer dust evenly enters the middle box and is adsorbed on the outer surface of the filter bag. The clean gas enters the upper box through the filter bag and passes through the off-line valves and exhaust Pipe to get the exhaust gas from the dust-free pharmaceutical factory;
[0043] This process uses a pulse dust collector. The dust collector is mainly composed of an upper box, a middle box, a...
Embodiment 3
[0053] On the basis of the full-temperature pressure swing adsorption method for the treatment of a pharmaceutical factory tail gas described in Example 1, it is further optimized. The washing tower system includes 1 alkali washing tower and 1 water washing tower, and the high-temperature dust-free pharmaceutical factory tail gas is from The alkali washing tower enters from the bottom of the tower, and the circulating ammonia water is sprayed on the air collecting pipe in the tower through the pump; then it enters the water washing tower, and then the alkaline components are removed through the water washing tower, and the circulating pure water is sprayed and washed on the air collecting pipe in the tower to ensure dust-free pharmaceutical factory tail gas Fully contact with the lotion and produce heat exchange effect, so as to achieve the cooling effect; at the same time, the tail gas of the dust-free pharmaceutical factory is condensed and taken away by water due to the tempe...
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