CN201320449Y

CN201320449Y - Atomizing desulfurization device

Info

Publication number: CN201320449Y
Application number: CNU2008202257778U
Authority: CN
Inventors: 刘昌林; 李加恩; 张慎栋
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-11-12
Filing date: 2008-11-12
Publication date: 2009-10-07
Anticipated expiration: 2018-11-12

Abstract

The utility model discloses an atomizing desulfurization device; a plurality of layers of rotational flow discs and demist discs are arranged inside a cylinder-shaped tower body from down to up; each rotational flow disc is provided with a spray head spraying mist downwards; the demist discs and the rotational flow discs adopt an inner and an outer annular structures; an inner rotational guide flow blade unit is arranged between the annular bodies, and each guide flow blade is obliquely arranged in the direction of the annular tangential line and is guided in the direction of the axis of the tower; a central water pipe is arranged at the axis of the tower; the spray head is connected with the central water pipe through a spraying pipe, so as to atomize and spray the desulfurization agent entering the tower body. The flow of the smoke gas is adequately utilized to perform adequate atomization of the desulfurization agent; the device has simple structure, small running resistance and high desulfurization rate; the desulfurization rate of absorption liquid per unit is 3 times of the prior desulfuriation rate.

Description

A kind of spraying desulphurization device

Technical field

The utility model belongs to desulfurizing industrial fume dedusting environment friendly equipment.

Background technology

The dust-removing desulfurating apparatus that is used for combustion apparatus such as coal-burning boiler, kiln at present mainly is to utilize every the smoke shelf plate to make flue gas impact the water surface, produces spray and water smoke, reaches the purpose of desulfurization and dedusting.Because atomizing effect is poor, flue gas can't fully contact with absorbing liquid, and its desulfurization and dust removing effects are undesirable.

For example: on January 9th, 2002, the Chinese patent ZL01221634.8 of bulletin disclosed a kind of Swashing type water bath desulfurization dust removing, this desulfurizing dust-collector is formed by connecting by collection chamber, inlet plenum, expansion chamber three parts, be provided with water fender and last arc shaped blade in the inlet plenum, last arc shaped blade top is connected with the lower end of water fender, both sides and inlet plenum are fixed, the arc lower blade is arranged in the expansion chamber, both sides and expansion chamber are fixed, form S type passage between upper and lower arc shaped blade, the collection ash bucket is positioned at the expansion chamber below, is equipped with butterfly valve at the two ends up and down of collection ash bucket.This device is by turning, dilatation, the gas-liquid contact area increases, has certain desulfurization and dedusting effect, but the desulfurization amount of this device unit's liquid is low, its main cause liquid gas contact is insufficient, the liquid large usage quantity, and this desulfurizing dust-collector will consume bigger flue gas function simultaneously, processing for the bigger boiler of power plant of exhaust gas volumn etc. needs many table apparatus to move simultaneously in addition, so its disposal ability is restricted.

For example: on May 9th, 2007, the Chinese patent ZL 200620113276.1 of bulletin disclosed a kind of high-efficiency flue gas desulfurization tower, its desulfurization and dedusting effect has had improvement than the former, but its waterpipe arranges that not enough science shower nozzle is less and it is reasonable inadequately to be provided with, the contact of liquid gas is abundant inadequately, has the phenomenon of slump to take place in the work.Its main cause is that its water distribution system divides three grades to send water by the outer inlet channel of tower, directly spray by three eddy flow tray tops, cause that into the water impulsive force is too concentrated, the water distribution inequality, hydraulic impact with from down and forward spin flow gas impulse force acts on eddy flow tray repeatedly, make in the eddy flow tray course of work severe vibration up and down, very easily produce tired, peripheral support is middle not to be supported because of eddy flow tray relies on, thereby causes eddy flow tray to come off, and influences desulfurized effect and service life.

Summary of the invention

The purpose of this utility model is to solve the problem that existing desulfurizer desulfuration efficiency is low, service life is short.Existing desulfation dust-extraction device is improved, a kind of spraying desulphurization device is provided.

The technical solution adopted in the utility model is as follows:

A kind of spraying desulphurization device comprises cylindrical-shaped tower, and tower body top is provided with exhanst gas outlet, and the bottom is provided with gas approach, it is characterized in that:

1, from bottom to top be disposed with several layers eddy flow tray and the demist dish that is parallel to the tower body cross section in tower body, each eddy flow tray top is furnished with several shower nozzles of spraying downwards.

2, described eddy flow tray is a disc, the disc central part is provided with a spherical surface body, pars intermedia and outer rim are and the body concentric torus of sphere, between the torus of spherical surface body and pars intermedia, be furnished with inward turning guide vane group between pars intermedia torus and the outer rim torus, the tangential direction that each guide vane is annulus is in tilted layout, and leads to the tower axle center.

3, described demist dish structure is identical with above-mentioned eddy flow tray, but guide vane is to lead to the tower body wall.

4, the center of described eddy flow tray and demist dish spherical surface body is provided with circular hole, be provided with a center water pipe in the tower axle center, the center water pipe passes from all eddy flow trays and demist dish circular hole, every layer of shower nozzle connected by jet pipe and center water pipe, fix at the bottom of water pipe bottom, center and the tower, and pass tower wall and center water pipe with a water inlet pipe and connect, be used for tower and intake outward.

5, the upper space of described tower body is provided with and overflows wind apparatus, and the described wind apparatus that overflows is the deep bead that is parallel to the tower body cross section, and the deep bead center is processed with the hole, is connected with overflow cylinder perpendicular to deep bead by the hole below deep bead.

6, described tower body lower space is provided with the hydrops pond, has the leakage fluid dram that communicates with the hydrops pond on the sidewall of tower body bottom.

7, described demist dish is located between eddy flow tray and the deep bead, and it is 1～3 that number is set, and the number of eddy flow tray is provided with more than 2.

This spraying desulphurization device tower body and inner all parts that are provided with are all made by the vinyl esters composite.The vinyl esters composite is that the unsaturated ethylene thiazolinyl ester material that is mixed with glass fibre solidifies the organic material that is polymerized, intensity height, acid-alkali-corrosive-resisting.

Desulfurization principle of the present utility model is: it is up that flue gas enters tower body inside by the gas approach of tower body lower end, and flue gas rises at the tower body inside spin.Desulfurizing agent enters tower body by water inlet pipe, by the shower nozzle atomized spray, sprays to the desulfurizing agent that eddy flow goes out and forms uniform moisture film, and flue gas plays the effect of tearing to desulfurizing agent when the eddy flow tray by interior guiding, desulfurizing agent is fully atomized and rises with flue gas.Desulfurizing agent after the atomizing contacts, absorbs with flue gas.The flue gas that rises contacts with the demist dish of outer guiding with the atomizing desulfurizing agent, and its speed uplink is subjected to resistance, and the desulfurizing agent of atomizing condenses on the eddy flow tray blade or sinks.Constantly spraying into of desulfurizing agent makes the desulfurizing agent after fully circulating flow into the hydrops pond of tower body bottom, discharges then.The sphere that overflows wind apparatus and demist dish of cat head has also effectively reduced the flow velocity of flue gas, impels the abundant sedimentation of atomizing absorption liquid in the flue gas, and adjusts the direction of motion of flue gas.Flue gas after desulfurization and dedusting is handled is discharged to cat head by overflow cylinder, enters atmosphere by exhanst gas outlet again.

The beneficial effects of the utility model are:

1, demist dish and eddy flow tray inside loop and outside loop structure have increased intensity, and guide vane is tangential direction and is in tilted layout, and has improved the eddy flow effect, and water inlet pipe is fixedlyed connected with the eddy flow tray spherical surface body with the demist dish, has improved bulk strength.

2, a plurality of shower nozzles are established in the eddy flow tray top.Evenly the mode of arranging and the sphere effect of eddy flow tray spherical surface body have increased the atomizing shape uniformity that desulfurizing agent is sent forth.

3, make full use of flowing of flue gas desulfurizing agent is fully atomized, simple in structure, running resistance is little, desulfuration efficiency is high, the desulfurization dust-removing efficiency of unit absorption liquid is 3 times of existing desulfurization dust-removing efficiency.

4, owing to adopt vinyl esters to make corrosion-resistant, high temperature resistant composite, the flue gas desulfurization that can be widely used in industrial coal combustion equipments such as power plant, chemical industry is handled.

Description of drawings

Fig. 1 is a front view of the present utility model;

Fig. 2 is the schematic diagram (vertical view) of eddy flow tray;

Fig. 3 is the schematic diagram (vertical view) of demist dish.

1---exhanst gas outlet; 2---the hole; 3---overflow cylinder; 4---tower body; 5---the demist dish; 6---jet pipe; 7---shower nozzle; 8---eddy flow tray; 9---the center water pipe; 10---water inlet pipe; 11---leakage fluid dram; 12---the hydrops pond; 13---gas approach; 14,15---inward turning guide vane group; 16---spherical surface body; 17---the pars intermedia torus; 18---the outer rim torus; 19---outward turning guide vane group; 20---circular hole; 21---deep bead.

The specific embodiment

With reference to accompanying drawing, the utility model is further specified: this spraying desulphurization device overall structure is the cylindrical-shaped tower 4 of upper and lower side sealing as shown in Figure 1, is all made by the vinyl esters composite; Tower body 4 tops are provided with exhanst gas outlet 1, and the bottom is provided with gas approach 13, and tower body 4 inside from bottom to top set gradually three eddy flow trays 8 and demist dish 5 that is parallel to the tower body cross section; Eddy flow tray is a disc, central part is a spherical surface body 16, pars intermedia is a pars intermedia torus 17, outer rim is an outer rim torus 18, be furnished with inward turning guide vane group 15 between spherical surface body 16 and the middle part torus 17, arrange inward turning guide vane group 14 between pars intermedia torus 17 and the outer rim torus 18, guide vane is that tangential direction is in tilted layout and to tower axle center guiding (as shown in Figure 2); The structure of demist dish as shown in Figure 3, it is identical with the structure of eddy flow tray, different is that guide vane group 19 leads to the tower body wall.The center of the demist dish in the tower and the spherical surface body of eddy flow tray is provided with circular hole 20, pass a center water pipe 9 in the circular hole 20,4 jet pipes 6 of each even laying of axle center, water pipe upper edge, center above three eddy flow trays adopt flanges to be connected with 4 shower nozzles 7, jet pipe 6 with shower nozzle 7, the water spraying direction of shower nozzle 7 straight down, three layers of shower nozzle are between levels, interlaced 30 °, shower nozzle 7 adopts carbofrax material, fixedly connected with at the bottom of the tower in water pipe 9 bottoms in center, water inlet pipe 10 is horizontally through the tower wall and is communicated with center water pipe 9.

Be provided with at tower body 4 upper spaces and overflow wind apparatus.Overflowing wind apparatus is the deep bead 21 that is parallel to the tower body cross section, there is hole 2 at deep bead 21 centers, be connected with the overflow cylinder 3 perpendicular to deep bead 21 on the hole 2, the tower body bottom is provided with hydrops pond 12, has the leakage fluid dram 11 that communicates with hydrops pond 12 on the sidewall of tower body lower end.

Claims

1, a kind of spraying desulphurization device comprises cylindrical-shaped tower, and tower body top is provided with exhanst gas outlet, and the bottom is provided with gas approach, it is characterized in that:

From bottom to top be disposed with the multi-layer rotational flow dish and the demist dish that are parallel to the tower body cross section in tower body, each eddy flow tray top is furnished with the shower nozzle of a plurality of downward sprayings;

Described eddy flow tray is a disc, the disc central part is provided with a spherical surface body, pars intermedia and outer rim are and the body concentric torus of sphere, between the torus of spherical surface body and pars intermedia, be furnished with inward turning guide vane group between pars intermedia torus and the outer rim torus, the tangential direction that each guide vane is annulus is in tilted layout, and leads to the tower axle center;

Described demist dish structure is identical with above-mentioned eddy flow tray, but guide vane is to lead to the tower body wall;

The center of described eddy flow tray and demist dish spherical surface body is provided with circular hole, be provided with a center water pipe in the tower axle center, the center water pipe passes from all eddy flow trays and demist dish circular hole, every layer of shower nozzle connected by jet pipe and center water pipe, fix at the bottom of water pipe bottom, center and the tower, and pass tower wall and center water pipe with a water inlet pipe and connect, be used for tower and intake outward;

The upper space of described tower body is provided with and overflows wind apparatus, and the described wind apparatus that overflows is the deep bead that is parallel to the tower body cross section, and the deep bead center is processed with the hole, is connected with overflow cylinder perpendicular to deep bead by the hole below deep bead;

Described tower body lower space is provided with the hydrops pond, has the leakage fluid dram that communicates with the hydrops pond on the sidewall of tower body bottom;

Described demist dish is located between eddy flow tray and the deep bead, and it is 1～3 that number is set, and the number of eddy flow tray is provided with more than 2.