System for decomposing garbage by using magnetic energy carbide furnace

A technology for treating 2-naphthol alkaline fusion tail gas, which comprises a tail gas storage tank, cyclone separation device, a primary water spray tower, a secondary water spray tower, a spraying and circulating water tank, a water and vapor separator, sewage treatment, a draught fan and a discharging device. The tail gas is connected to the cyclone separation device downwards connected to the primary water spray tower, and the primary water spray tower is downwards connected to the secondary water spray tower; and synchronously, the spraying and circulating water tank is connected to the primary water spray tower and the secondary water spray tower through pipelines, the secondary water spray tower is downwards connected to the water and vapor separator downwards connected to the draught fan, and the water and vapor separator is also connected to the spraying and circulating water tank through a pipeline and the draught fan is connected to the discharging device. The 2-naphthol alkaline fusion tail gas is derived from an alkaline fusion position in the 2-naphthol production; and due to the fact that the reaction temperature of the alkaline fusion process is very high, except water vapor, the 2-naphthol alkaline fusion tail gas further contains the carried materials, such as resin matters, naphthalene, 2-naphthol sodium, sodium hydroxide water vapor, and the like. The technology for treating the 2-naphthol alkaline fusion tail gas, provided by the invention, is simple in entire technology, convenient to operate and use, good in stability and high in reliability.

Technology for treating 2-naphthol alkaline fusion tail gas

The invention discloses a comprehensive utilization system for heat energy of flue gas generated in production of sodium tripolyphosphate, and relates to the field of recycling heat energy. The system comprises a waste heat recovery device, a boiler soft water tank, an air preheater, a water heater, a condenser, and a circulating water tank, wherein the waste heat recovery device comprises a waste heat recoverer and a steam pocket; the air preheater comprises an upper smoke box and a lower smoke box; the water heater comprises a water storage tank and a heat exchange smoke box; the gas inlet end of the waste heat recoverer is connected with flue gas discharge pipeline, the gas outlet end of the waste heat recoverer is sequentially connected with the lower smoke box and the heat exchange smoke box, and the condenser is connected with the upper smoke box; a water inlet of the water storage tank is connected with the circulating water tank, a water outlet of the water storage tank is connected with a water inlet of the condenser, and a water outlet of the condenser is connected with the boiler soft water tank and the circulating water tank; and the boiler soft water tank is also connected with the steam packet and the circulating water tank. The comprehensive utilization system for heat energy of flue gas generated in production of sodium tripolyphosphate disclosed by the invention can be used for performing heat energy recovery for multiple times on the heat in the flue gas generated in the production of sodium tripolyphosphate so as to reduce pollution.

Comprehensive utilization system for heat energy of flue gas generated in production of sodium tripolyphosphate

The utility model discloses a trimeric sodium phosphate tail gas washing device, which consists of a tail gas system and a spray water system, wherein the tail gas system comprises a cyclone separator (1), a heat pipe air preheater (2), an induced draft fan (3), a semi-annular joint water seal (4), a vertical sprayer (5), a sprayer tower (6) and a chimney (7), wherein a polymerization furnace (13) is connected with the cyclone separator (1) through a tail gas pipeline; a pipeline is connected with the heat pipe air preheater (2), the induced draft fan (3) and the semi-annular joint water seal (4) in sequence; the water seal (4) is directly connected with the vertical sprayer (5); the vertical sprayer (5) is connected to the lower part of the spray tower (6); the top of the spray tower (6) is provided with a rotational flow plate (8); the chimney (7) is arranged on the rotational flow plate (8); the spray water system comprises a lye tank (9), a washing water groove (10), a water pump (11) and a washing water conveying pipeline; the lye tank (9), the washing water groove (10) and the water pump (11) are connected with one another through the washing water conveying pipeline; and the pipelines are also connected with the vertical sprayer (5) and the sprayer tower (6). By adopting the device, trimeric sodium phosphate tail gas can be emitted according to standard, and the neighboring environment is improved.

Yongjiang Ting

Papers

Trimeric sodium phosphate tail gas washing device