Integrated type device for harmless treatment of waste gas and waste liquid

Abstract

The invention discloses an integrated type device for harmless treatment of waste gas and waste liquid, and relates to the field of liquid propellant waste gas and waste liquid treatment. The device comprises a combustor, a fuel gas post-treatment device, a centrifugal fan, a fuel supply system, an N2O4 waste gas and waste liquid pipeline, a hydrazine type waste gas and waste liquid pipeline, a measuring and controlling cabinet, an upper computer and a neutralization solution supply pipeline; the combustor is of a horizontally-arranged hollow cylindrical structure; the fuel gas post-treatmentdevice is coaxially and fixedly arranged at one end of the combustor in the axial direction; the measuring and controlling cabinet and the centrifugal fan are connected with the other end of the combustor in the axial direction; the N2O4 waste gas and waste liquid pipeline and the hydrazine waste gas and waste liquid pipeline are connected with the middle of the combustor; the upper computer is connected with the measuring and controlling cabinet through a network cable; the fuel supply system communicates with the combustor; and the neutralization solution supply pipeline communicates with the fuel gas post-treatment device. According to the device, the emitted fuel gas temperature is reduced, harmful components in the fuel gas are further absorbed and treated, the harmless treatment of harmful substances is realized, and environmental pollution is avoided.

Description

technical field [0001] The invention relates to the field of liquid propellant waste gas and waste liquid treatment, in particular to a packaged device for harmless treatment of waste gas and waste liquid. Background technique [0002] N 2 o 4 / Hydrazine (such as anhydrous hydrazine, methyl hydrazine, unsymmetrical dimethyl hydrazine, single push-3) is usually used as an oxidant / fuel combination for liquid rocket engine propellant, because dinitrogen tetroxide and hydrazine are both corrosive Highly toxic or highly toxic substances, and most of them have carcinogenic effects. N 2 o 4 Or hydrazine waste gas and waste liquid, if not treated in time and thoroughly, will cause serious harm to the environment and personnel. [0003] Currently domestic and foreign for N 2 o 4 The methods for treating waste gas and liquid with hydrazine propellants mainly include physical absorption method, chemical neutralization method, combustion method, biological treatment method, etc....

AI Technical Summary

Problems solved by technology

Although the physical absorption method (such as water absorption method) is simple and easy, the waste water after absorption needs to be treated twice, and the treatment cycle is long, which is suitable for small-dose, low-concentration waste gas and waste liquid treatment; chemical neutralization method usually waste gas and waste liquid Recycle to a large storage container, reduce the concentration and pass it into the washing tower, and spray the neutralizing liquid in the washing tower to realize the non-toxic treatment of toxic substances. Large-scale fixed ground facilities are required, which limits the scope of application of this method ; Combustion method can achieve N 2 o 4 Rapid and efficient treatment of hydrazine waste gas and waste liquid, and it is easy to realize integration and miniaturization, but the product after direct combustion will contain NO X , hydrazine incomplete combustion products and other harmful substances

[0004] Currently available waste gas and waste liquid treatment devices usually only have the ability to treat hydrazine or N alone. 2 o 4 The function increases the cost, and the utilization rate and flexibility of the equipment are very low.

Images