CN2496543Y

CN2496543Y - Three-phase fluidized bed gas purificator

Info

Publication number: CN2496543Y
Application number: CN 01217582
Authority: CN
Inventors: 赵跃
Original assignee: HUANENG BURNER Manufacturing Co Ltd CHANGSHU CITY
Current assignee: HUANENG BURNER Manufacturing Co Ltd CHANGSHU CITY
Priority date: 2001-02-22
Filing date: 2001-02-22
Publication date: 2002-06-26
Anticipated expiration: 2011-02-22

Abstract

The utility model relates to a purifier for a triphase fluid bed, and the purifier for a triphase fluid bed belongs to the purification equipment for purifying a technological gas. The utility model comprises a barrel, an air inlet opening, a plurality of grid plates, a supporting frame, a plurality of filling compounds, a plurality of spray throwers and a mist eliminator, the air inlet opening is arranged on the lower part of the barrel, the pluralities of grid plates are slantwise arranged inside the barrel aimed at the air inlet opening, the supporting frame is arranged on the middle position of the barrel, the filling compounds are laid on the supporting frame, a plurality of spray throwers is arranged on the upper part of the barrel through a liquid inlet leaded into the barrel, and the mist eliminator is arranged at the upper part of the barrel. The column net of the utility model is omitted, the fluidity of the gas is good, the rational air quantity can be realized, the spray liquor is distributed equably, and at the same time the structure is simple.

Description

The three phase fluidized bed gas purifier

The utility model relates to a kind of three phase fluidized bed gas purifier, belongs to the cleaning equipment to industrial gas purifying.

The cleaning equipment of industrial gasses roughly has simple cleaner and double equipment two classes of removing the harmful components in the gas of dedusting.As for simple cleaner, have with cyclone separator or water dust scrubber, dust removing effects is not good enough, and adopts filtering type or electrostatic precipitator, though its dust removing effects is good, but equipment complexity, expense height.As for dedusting and the purifier of removing harmful components, be boiler, the kiln of fuel, emptying flue gas of industrial furnace etc. based on coal or oil often, its common problem is a device structure complexity not only, and dedusting and desulfurization need carry out respectively, thereby more increased the complexity of a whole set of purifier.

The most novel fluid bed, can yet be regarded as is a kind of preferred unit of gas purification, handles the advantage large-minded, that operating cost is low because it has.With regard to its structure, Gu by adopting gas---liquid two-phase or gas---two-phase fluid bed to constitute together with spray column is collaborative.But still there is cloth wind complex structure in the fluid bed of this structure, and resistance is higher, and easily stifled problem.For example: adopt fixed packed bed, though purification efficiency is high, dust might deposit the obstruction bed, has increased the resistance of motion; Adopt portable packed bed, must increase the purification and the hoisting mechanism of a cover filler, make overall structure more complicated.Just Given this,, China Patent No. is 97247480.3 to disclose a kind of three phase fluidized bed gas cleaning plant, and this device has overcome above-mentioned alleged all defectives, but owing to still lack distinctive feature on its structure, so in use also expose some deficiency.For example, it is provided with the hurdle net on the top of packing layer, its objective is by this hurdle net to prevent that bulky grain dust, filler (being generally filling ball) from upwards being taken away by air-flow, in order to avoid undermine demister and draught fan impeller.Hardly realize, because the setting of hurdle net, can increase the resistance of gas flow, weaken and handle air quantity, unless the increase fan capacity all is uneconomic for production firm and applying unit and increase fan capacity, in addition, being provided with of hurdle net can influence the even distribution of spray liquid, thereby influences clean-up effect.Besides the setting of hurdle net says that in a sense inaction ground has increased parts to device, the trouble of cause processing, installing.

The purpose of this utility model is will provide a kind of and can not increase resistance to gas flow, can guarantee reasonably to handle air quantity and spray liquid three phase fluidized bed gas purifier that be evenly distributed, simple in structure.

The purpose of this utility model comes Star to arrive like this, a kind of three phase fluidized bed gas purifier, it comprises cylindrical shell 1, air inlet 2, air distribution plate 3, carriage 4, filler 5, spray thrower 6, demister 7, described air inlet 2 is opened in the bottom of cylindrical shell 1, air distribution plate 3 has some, the different sizes of each air distribution plate 3, they tiltedly are located in the cylindrical shell 1 in alignment with air inlet 2 equably by little and big and gap, carriage 4 is located at the medium position of cylindrical shell 1, and between spray thrower 6 and air distribution plate 3, filler 5 shops place on the carriage 4, spray thrower 6 has a plurality of, they introduce the top that cylindrical shell 1 interior feed tube 11 places cylindrical shell 1 by one, and demister 7 is located at the top of cylindrical shell 1.

The utility model has been owing to saved the hurdle net, not only have gas fluidity good, can obtain reasonably to handle air quantity, spray liquid is evenly distributed, and have advantage of simple structure.

Below in conjunction with accompanying drawing the utility model is further described below.

Fig. 1 is the utility model structural representation.

Fig. 2 is the structural representation of spray thrower 6 of the present utility model.

Spray thrower 6 of the present utility model comprises tube connector 10, shower nozzle cover 8, rotation float 9, tube connector 10 and feed tube 11 Joints, and the two communicates, shower nozzle cover 8 is fixed on the not end of tube connector 10, its center line and tube connector 10 centerline are on same axis, and rotation float 10 places in the shower nozzle cover 8.When akaline liquid, the water introduced by feed tube 11 maybe can absorb the liquid of harmful gas componant after tube connector 10 enters shower nozzle cover 8, effect by the rotation float 9 in the shower nozzle cover 8, liquid is sprayed at equably is positioned on the 1st layer of filler 5 of its below, then in regular turn by on 2 layers of filler 5 of the 1st metafiltration to the, on the extremely last one deck filler 5 of the 2nd layer of filler 5 filters.Liquid is evenly distributed, and is not existed because having cast out the hurdle net to stop and rotate float 9 and be provided with some apertures, and during spray, rotation float 9 can rotate.Because spray thrower 6 has several, so they are located at the top of first floor filler 5 by the area principle that evenly distributes by feed tube 11.

Air distribution plate 3 of the present utility model has an inclined-plane, thus when being installed with, should be with the inclined-plane towards air inlet 2, each air distribution plate 2 is ascending evenly distributed in regular turn by its cross section.

Carriage 4 of the present utility model can be one, also can be two, can also be three or four, but preferably three, three in this way, then they are parallel mutually and keep a determining deviation ground to be fixedly arranged in the middle part of cylindrical shell 1 mutually.The free cross-section rate of carriage 4 is 10%～90% not wait.

Filler 5 of the present utility model adopts filling ball, and they are filled out in each carriage 4 by the shop, form packing layer.The sphere diameter of filling ball is preferably got 25～80mm, and the shop is filled out thickness and is preferably 3000～800mm.

The utility model comes industrial gasses are purified like this, because the kind of industrial gasses is not quite similar, so the utility model is only to containing dust and SO ₂Flue gas its purification process is described.After sulfur-containing smoke gas enters cylindrical shell 1 by air inlet 2, through air distribution plate 3, its even dispersion in cylindrical shell 1 is distributed, so that filling ball can even fluidisation.Contain such as Ca (OH) ₂, NaOH, CaCo ₃, NH ₃.H ₂The alkaline matter of O or the spray liquid of other alkaline waste liquor from feed tube 11, tube connector 10 through shower nozzle cover 8 be sprayed at equably the first floor by filling ball shop packing layer just on, and in regular turn down on the packing layer of filter under, form alkaline liquid film on filler 5 surfaces.Meanwhile, when flue gas passed the tortuous slit of 5 of fillers, the dirt particle in the flue gas was owing to collision, absorption, diffusion are also finally fully removed through demister 7, and the SO in the flue gas ₂Also absorbed and remove by akaline liquid.Thereby realize in fluid mapper process, finishing dedusting, desulfurization simultaneously by the utility model.

Claims

1, a kind of three phase fluidized bed gas purifier, it comprises cylindrical shell (1), air inlet (2), air distribution plate (3), carriage (4), filler (5), spray thrower (6), demister (7), it is characterized in that described air inlet (2) is opened in the bottom of cylindrical shell (1), air distribution plate (3) has some, the different sizes of each air distribution plate (3), they tiltedly are located in the cylindrical shell (1) in alignment with air inlet (2) equably by little and big and gap, carriage (4) is located at the medium position of cylindrical shell (1), and be positioned between spray thrower (6) and the air distribution plate (3), filler (5) shop places on the carriage (4), spray thrower (6) has a plurality of, they introduce the top that the interior feed tube (11) of cylindrical shell (1) places cylindrical shell (1) by one, and demister (7) is located at the top of cylindrical shell (1).

2, three phase fluidized bed gas purifier according to claim 1, it is characterized in that spray thrower (6) comprises tube connector (10), shower nozzle cover (8), rotation float (9), tube connector (10) and feed tube (11) Joint, and the two communicates, shower nozzle cover (8) is fixed on the not end of tube connector (10), its center line and tube connector (10) centerline is on same axis, and rotation float (10) places in the shower nozzle cover (8).