Spray tower

About: Spray tower is a research topic. Over the lifetime, 1028 publications have been published within this topic receiving 4715 citations.

Cooling tower vapor recycling system

Abstract: The utility model discloses a cooling tower vapor recycling system, which aims at providing a system capable of reasonably reducing freshwater resource waste by means of liquefying and recycling overflowing waste hot vapors inside a cooling tower and storing the vapors inside a reservoir for other uses. The system employs the scheme including that a vapor collecting cover is disposed on the top portion of the cooling tower, the vapors are led into a spray tower via a spiral exhaust fan, and the vapors are collected in a water accumulation pipeline and then flow into the reservoir for other uses after being liquefied inside the spray tower.

Heat treatment reaction tail gas purification and recovery technology and system

Abstract: The invention relates to a heat treatment reaction tail gas purification and recovery technology and system. The heat treatment reaction tail gas purification and recovery technology comprises the following steps: tail gas is introduced through the bottom of a spray tower to be in counter-flow contact with a mixture of washing oil and liquid alkanes, so as to remove straight-chain alkanes and arenes; primarily purified tail gas is introduced through the lower part of a packed tower to be in counter-flow contact with an aqueous alkaline solution, so as to remove carbon dioxide, and remove oxygen from the packing material at the same time; purified gas is stored for cyclic utilization; the system comprises a tail gas storage tank which is communicated with the lower part of the inner cavity of the spray tower through a first gas delivery pipe; the upper part of the spray tower is communicated with a first liquid storage tank through a first liquid delivery pipe; first supercharging equipment is arranged on the first liquid delivery pipe; the upper end of the spray tower is communicated with the lower part of the packed tower through a second gas delivery pipe; the upper part of the packed tower is communicated with a second liquid storage tank through a second liquid delivery pipe; second supercharging equipment is arranged on the second liquid delivery pipe; the upper end of the packed tower is communicated with a purified gas storage tank through a third gas delivery pipe. With the adoption of the heat treatment reaction tail gas purification and recovery technology and system, tail gas can be purified, useful chemical raw materials in the tail gas can be recycled, gases after purification can be cyclically utilized, and mass gas transportation and storage can be reduced.

Method and apparatus for removal of heat from an olefin polymerization reactor

Abstract: In polymerizing a C2 to C8 olefin, in a polymerization reactor with a reflux condenser, a gas mixture withdrawn from the polymerization reactor is first washed before it reaches the heat transfer surface of the reflux condenser to remove active catalyst particles and polymer particles entrained therein and then condensed to obtain a condensed liquid, and the condensed liquid is returned to the polymerization reactor whereby the heat generated in the polymerization reactor is efficiently removed without causing any clogging of pipes. The washing means is a gas-liquid contacter such as a sieve tray, turbogrid tray, ripple tray, pibo disc scrubber, cyclone scrubber or spray tower and can be in the lower portion of the condenser. The washing is preferably by countercurrent contact of the gas mixture with condensed liquid obtained in the condenser and/or solvent.

Collector for collecting dust in gas exhausted by spray dryer

Abstract: The utility model provides a collector for collecting dust in gas exhausted by a spray dryer. The collector adopts the technical scheme that dust in gas exhausted a spray tower trap passes through a water film of a ripple packing, so that effective constituents in the gas can be absorbed by the collector; a motor can automatically work in a timing manner, so as to conduct circulation spray, and the water film of the ripple packing is replaced in time to absorb effective constituents of the gas; the highest liquid level can be controlled through a U-shaped pipeline, so as to ensure that recycled liquid can not flow back into the spray tower trap; and the tank body, the pipeline, the valve and the ripple packing of the collector are all made of stainless-steel materials. The utility model can further recycle effective constituents in the exhaust gas, ensures that the total recovery rate is increased by 2 to 3 percent, and also solves the problems that the operation is inconvenient when a filtering bag of the trap goes is in an abnormal state; and more importantly, the utility model reduces environmental pollution.

Operation of waste gas treatment apparatus in waste incinerator

Abstract: PROBLEM TO BE SOLVED: To provide an operation method of a waste gas treatment apparatus for removing dioxins by realizing an optimum operation temperature so as to demonstrate stable performance. SOLUTION: Hydrochloric acid concentration of a waste gas is lowered to a specified level in a lime spray tower and sprayed lime together with ash is collected by a dust collector. Then, waste gas temperature is controlled to a temperature of 120-160 deg.C by a heat exchanger and is guided into an adsorption tower filled with granular active carbon in order that SO2 and dioxins are adsorbed by the granular active carbon. NOx is decomposed by NH3 introduced into a flue of the heat exchanger and a part of it together with dust is filtered and removed as NH4 Cl by the active carbon in the adsorption tower. Then, the active carbon which has adsorbed SO2 , dioxins and HCl is guided into a desorption tower, and the SO2 is desorbed, the dioxins are decomposed and the HCl is desorbed and the active carbon which has undergone desorption and regeneration is separated into granular active carbon, dust and active carbon powder by a sieving device. The granular active carbon is returned to the adsorption tower, desorbed gas is returned to the lime spray tower so as to be desalted and the SO2 is fixed by the lime, and the dust and active carbon powder are returned to a furnace or the lime spray tower.