CN209771401U - Condensation dust removal and mist removal device for desulfurization tower - Google Patents

Abstract

The utility model belongs to industry flue gas subducts the purification field, relates to a condensation dust removal defogging device for desulfurizing tower, collect water mouthful, defroster collection water pipe, desulfurization effluent treatment plant including polymer condenser, rotary vane formula defroster, condenser, the polymer condenser connects gradually with rotary vane formula defroster and forms integrated device, rotary vane formula defroster contains rotary vane centrifugation dust removal module and liquid drop discharge hole. The utility model has the advantages that the polymer condenser and the rotary vane type demister are connected in sequence, the structure is compact, the occupied space is saved, and the construction and installation work amount and the installation time are saved; the utility model discloses cooling condensation and degree of depth dust removal defogging are handled to wet flue gas, have the advantage that the water conservation is effectual, equipment is compact, occupation of land space economizes.

Description

Condensation dust removal and mist removal device for desulfurization tower

technical field

The utility model belongs to the field of reduction and purification of industrial flue gas, and relates to a condensing dust removal and mist removal device for a desulfurization tower.

Background technique

Limestone-gypsum wet desulfurization technology is the most widely used desulfurization process in coal-fired power plants, with a market share of more than 90%. The salt content is high, it is difficult to achieve recycling, resulting in waste of water resources; among them, the discharged smoke carries a large amount of saturated water vapor droplets and some gypsum slurry, etc. Cooling and condensing wet smoke and deep dust removal and fog removal are the key to avoid environmental pollution important means.

Utility model content

The utility model solves the technical problem in the prior art that the humidity of the flue gas discharged from the wet desulfurization tower is relatively high, and it carries a large amount of saturated water vapor, mist droplets and part of the gypsum slurry.

The technical scheme that the utility model adopts for solving its technical problem is:

A condensation dedusting and mist removal device for a desulfurization tower, comprising a polymer condenser, a rotary vane demister, a condenser water collection port, a demister water collection port, a water collection pipe, and a desulfurization wastewater treatment device. The polymer condenser and The rotary vane demisters are sequentially connected to form an integrated device, and the rotary vane demisters include a rotary vane centrifugal dedusting module and a droplet discharge hole.

Further, the water collecting port of the condenser is installed at the lowest point between the polymer condenser and the rotary vane demister; the water collecting port of the demister is installed after the rotary vane demister, and the collecting water pipe connects the The droplets collected by the water collection port and the demister water collection port flow to the desulfurization wastewater treatment device by gravity.

Further, the polymer condenser is made of composite polymer material with corrosion resistance, low temperature resistance and good thermal conductivity.

Further, the rotary vane centrifugal dedusting module adopts freely rotatable rotary blades, the rotary blades are connected to the rotating shaft, the rotating shaft is connected to the bearing, and the bearing is fixed on the wall of the rotary vane type mist eliminator through a bracket.

Further, the shape of the droplet discharge hole is oval, round or rectangular.

Compared with the prior art, the utility model has the beneficial effects that the polymer condenser and the rotary vane demister are connected sequentially in the utility model, and their structure is compact, occupying less space, which is conducive to saving the amount of construction and installation and installation time; the utility model performs cooling condensation and deep dust and fog removal treatment on the wet flue gas, and has the advantages of good water saving effect, compact equipment, and small space occupation.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model;

Fig. 2 is the structural representation of the rotating vane type mist eliminator in the utility model;

Among them, 1 is a polymer condenser, 2 is a rotary vane demister, 3 is a water collection port of a condenser, 4 is a water collection port of a demister, 5 is a water collection pipe, 6 is a desulfurization wastewater treatment device, and 21 is a rotary vane centrifuge The dust removal module, 22 is a droplet discharge hole, and 23 is a rotating blade.

Detailed ways

The utility model will be further described in detail below in conjunction with the examples, but the implementation of the utility model is not limited thereto.

As shown in Figure 1, a condensation dedusting and demisting device for a desulfurization tower includes a polymer condenser 1, a rotary vane demister 2, a condenser water collection port 3, a mist eliminator water collection port 4, a water collection pipe 5, a desulfurization In the waste water treatment device 6 , the rotary vane demister 2 includes a rotary vane centrifugal dedusting module 21 and a droplet discharge hole 22 .

The polymer condenser 1 and the rotary vane demister 2 are sequentially arranged in the chimney, and are assembled as an integrated device, with a horizontal arrangement (arranged at the corner of the chimney as shown in Figure 1) and a vertical arrangement ( Arranged in the main body of the chimney), the polymer condenser 1 is the prior art, and its use will not be repeated here; the condenser water collection port 3 is installed on the polymer condenser 1 and the rotary vane The lowest point of the outer wall of the chimney between the foggers 2 is responsible for collecting the liquid droplets produced after the wet flue gas is cooled and condensed by the polymer condenser 1; behind, responsible for collecting the droplets discharged from the droplet discharge hole 22 after cyclone separation by the rotary blade centrifugal dedusting module 21; Gravity self-flow to the desulfurization wastewater treatment device 6.

The polymer condenser 1 is sequentially connected with the rotary vane demister 2 to form an integrated device, which has a compact structure and saves space, which is conducive to saving the amount of construction and installation work and installation time; and the polymer condenser 1 Composite polymer materials are used to ensure chemical corrosion resistance and high and low temperature resistance, and at the same time, they have good thermal conductivity and high heat exchange efficiency, which is beneficial to the cooling of flue gas and thus precipitates more water, achieving a good water saving effect.

As shown in Figure 2, the rotary vane centrifugal dust removal module 21 in the rotary vane type mist eliminator 2 adopts a freely rotatable rotary blade 23, the rotary blade 23 is connected on the rotating shaft, the rotating shaft is connected with the bearing, and the bearing is fixed by a bracket On the wall of the rotary vane demister, the rotating state of the rotating blade is the same as the rotating state of the windmill; and the droplet discharge hole 22 is any one of ellipse, round hole or rectangle and is arranged on the cylindrical tube structure , the outer wall of the cylindrical tube where the droplet discharge hole 22 is located is not in contact with the inner wall of the chimney, and its inner diameter is the same as the outer diameter of the rotating blade of the rotary blade centrifugal dust removal module 21, so that the impurities in the air driven by the rotating blade are deposited in the droplet discharge on hole 22.

When the utility model is in use, the wet flue gas at the outlet of the desulfurization tower first enters the polymer condenser 1 for cooling and condensation, and a large amount of water is precipitated to reduce the humidity of the flue gas. The precipitated droplets are collected through the water collecting port 3 of the condenser; The condensed flue gas enters the rotary vane demister 2 along with the air flow in the chimney, and the rotating blade 23 of the rotary vane centrifugal dedusting module 21 makes the flue gas move forward while driving the flue gas to rotate. After the cyclone centrifugal action, the flue gas A large number of fine droplets in the medium are thrown to the droplet discharge hole 22 for aggregation, and then collected through the water collection port 4 of the demister; It flows automatically to the desulfurization wastewater treatment device 6.

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any skilled person who is familiar with the profession, without departing from the scope of the technical solution of the utility model, can use the above disclosure The technical content of the invention is changed or modified equivalent to the equivalent embodiment, but all the content that does not deviate from the technical solution of the utility model still belongs to the scope of the technical solution of the utility model.

Claims (5)

1. The utility model provides a condensation dust removal defogging device for desulfurizing tower, its characterized in that, includes polymer condenser, vane type defroster, condenser water collection mouth, defroster water collection mouth, collection water pipe, desulfurization effluent treatment plant, polymer condenser connects gradually with vane type defroster and forms integrated device, vane type defroster contains vane centrifugation dust removal module and liquid drop discharge hole.

2. The condensing, dedusting and demisting device for the desulfurization tower as recited in claim 1, wherein the water collecting port of the condenser is arranged at the lowest point between the polymer condenser and the vane-type demister; the demister water collecting port is arranged behind the rotary vane type demister, and the collecting water pipe automatically flows liquid drops collected by the condenser water collecting port and the demister water collecting port to the desulfurization wastewater treatment device through gravity.

3. The condensing, dedusting and demisting device for the desulfurization tower as recited in claim 1, wherein the polymer condenser is made of a corrosion-resistant, low temperature-resistant and good thermal conductivity composite polymer material.

4. the condensing, dedusting and demisting device for the desulfurization tower as recited in claim 1, wherein the rotary vane centrifugal dedusting module adopts a freely rotatable rotary vane, the rotary vane is connected to a rotary shaft, the rotary shaft is connected to a bearing, and the bearing is fixed on the wall surface of the rotary vane type demister through a bracket.

5. The condensing, dedusting and demisting device for the desulfurization tower as recited in claim 1, wherein the droplet discharging holes are oval, round or rectangular.