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Spray drying tower

A spray drying tower and drying technology, applied in water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve problems such as poor atomization and evaporation effects

Inactive Publication Date: 2021-10-08
GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a spray drying tower. Aiming at the problem of poor atomization and evaporation effect in the existing spray drying tower for desulfurization wastewater, it is proposed that the combination of a distributor and a shroud can reduce the impact of smoke on the mist. The hindering effect of the liquid droplets improves the mixing uniformity of the gas-liquid two phases, thereby improving the atomization evaporation effect of the spray drying tower, which can improve the atomization evaporation performance and reduce the overall cost of atomization.

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Embodiment Construction

[0029] The technical solutions of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0030] In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, use a spec...

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Abstract

The invention discloses a spray drying tower. The spray drying tower comprises a flue gas inlet, a distributor, a flow guide cover, a tower body, an atomizer, a feed opening and a flue gas outlet; the flue gas inlet is formed in the top of the tower body and is connected with the distributor; the distributor is arranged in the tower body and is connected with the top of the flow guide cover; the atomizer is arranged at the bottom of the flow guide cover; the feed opening is formed in the bottom of the tower body; and the flue gas outlet is arranged at the bottom of the tower body and above the feed opening. Aiming at the problem that an existing spray drying tower for desulfurization wastewater is poor in atomization and evaporation effect, the invention provides the spray drying tower which can reduce the hindering effect of flue gas on atomized liquid drops and improve the mixing uniformity of gas and liquid phases by configuring the combination of the distributor and the flow guide cover, so that the atomization and evaporation performance is improved, and the comprehensive atomization cost is further reduced.

Description

technical field [0001] The invention relates to the technical field of drying equipment, in particular to a spray drying tower. Background technique [0002] At present, a large number of coal-fired power plants reduce the emission of sulfur oxides in the following ways: desulfurization pretreatment of coal powder before combustion, and desulfurization treatment of flue gas after combustion. Among them, the limestone-gypsum desulfurization process is the main method for flue gas desulfurization. This desulfurization process can effectively reduce the emission of sulfur oxides, but the desulfurization waste liquid pollution caused by the desulfurization process is relatively harmful. [0003] At present, the treatment methods for desulfurization waste liquid include: chemical precipitation method, evaporation crystallization technology, main flue evaporation technology, bypass flue evaporation technology and rotary spray drying technology. Among them, rotary drying technolog...

Claims

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Application Information

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IPC IPC(8): C02F1/16C02F1/12C02F103/18
CPCC02F1/16C02F1/12C02F2103/18
Inventor 李德波
Owner GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD
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