CN2495374Y

CN2495374Y - Dual tangential circulating flow type cyclone dust remover

Info

Publication number: CN2495374Y
Application number: CN 01243740
Authority: CN
Inventors: 李建隆; 张志炳; 周学林; 王伟文; 丁丽
Original assignee: QINGDAO CHEMICAL COLLEGE
Current assignee: QINGDAO CHEMICAL COLLEGE
Priority date: 2001-06-29
Filing date: 2001-06-29
Publication date: 2002-06-19
Anticipated expiration: 2011-06-29

Abstract

The utility model relates to a dual tangential circulating flow type cyclone dust remover which belongs to a dust collecting cyclone for the industry and is composed of an outer cylinder body, an inner cylinder body, a conical cylinder body, a dust discharge pipe, a seal head, an air discharge outlet and inlet pipes. Two inlet pipes with the same size and different height are tangentially connected with the inner cylinder body so that air can be rotated in the same direction. The periphery of the upper part of the inner cylinder body is provided with a plurality of symmetrical discharge grooves. The turn number of dust-laden air rotating in the dust remover is effectively increased, processing load is large, the efficiency of removing duct is high, and the pressure of devices is reduced. The utility model can be widely used for dust removing in the systems of a boiler, a vertical cement kiln, the drying of complex fertilizer, the protection of sulphuric acid, etc.

Description

The two inlets circumfluent cyclone

The utility model relates to cyclone dust collectors, more clearly say so in the dust collecting process of all trades and professions such as chemical industry, building materials systems such as (for example) fluidized-bed reactors, adopt the two inlets import to improve the two inlets circumfluent cyclone of the dust removing effects of circumfluent cyclone.

Circumfluent cyclone has that pressure drop is low, enlarge-effect is little, the separative efficiency advantages of higher.In normal operation range, the equipment pressure drop is still not as good as 50% of conventional deduster.Be successfully used to composite fertilizer's drying, gas washing in SA production, the dedusting of systems such as fluidized-bed reactor, superior performance.But traditional circumfluent cyclone is generally single tangential admission form, and when being applied to high throughput, the height and the width of inlet are bigger.Entrance height is big, and the effective rotating cycle of dusty gas in deduster reduced, and causes its separative efficiency to descend; Throat width is big, and the part dusty gas easily directly enters interior eddy flow, also can cause separative efficiency to descend to some extent.

The purpose of this utility model, be to overcome above-mentioned shortcoming and defect, provide the effective rotating cycle of a kind of dusty gas in deduster to increase, eddy flow was discharged from the top overflow pipe in dusty gas was difficult for directly entering, thereby made the two inlets circumfluent cyclone that its efficiency of dust collection improves, enlarge-effect is little, the equipment pressure drop further reduces.

In order to achieve the above object, inner barrel, the conic tube that is connected in the outer cylinder body lower end, the ash releasing tube that is connected the conic tube lower end, the end socket that is connected in the outer cylinder body upper end that are connected by outer cylinder body, with bracing frame and outer cylinder body concentric of the utility model, be connected in the central row gas port on the end socket and pass the inlet tube that the outer cylinder body lower tangential inserts inner barrel and constituted.Said inlet tube has measure-alike one high and one low homodromal two of the dusty gas that makes.End socket can be forms such as flat or circle drum.Can also install guiding device additional in the inner barrel, mobile to guarantee on the air inlet screw.

The external form of two inlets circumfluent cyclone is similar to circumfluent cyclone, has just increased an inlet tube.The inlet tube position is one high and one low, and is measure-alike.During use, dusty gas enters in the device with tangential manner from two inlet tubes, gas is rotated in the same way, carry out first separation at inner barrel, the gas medium that reaches separation requirement is directly discharged from top vent, portion gas is introduced conic tube together with solid particle by circulation channel between inside and outside cylindrical shell, obtains secondary separation in conic tube.Gas after the separation returns the first separation district vertically in awl tube portion, and solid particle enters grey storehouse or row outside device in conic tube bottom enrichment and from ash releasing tube, thereby makes the gas-solid two-phase obtain separation.

Circumfluent cyclone has characteristics such as energy consumption is low, pressure drop is little, enlarge-effect is little, treating capacity is big, operating flexibility is big, separative efficiency height.Under same treatment amount situation, two inlets circumfluent cyclone inlet tube height and width are littler than single tangential circumfluent cyclone, therefore, the effective rotating cycle of two inlets circumfluent cyclone in device increases, and inlet size is little to the interference of annular space flow pattern, make annular space flow pattern standard more, thereby two inlets circumfluent cyclone efficient is increased, pressure drop reduces.

The inner barrel top periphery can have the several rows of groove of putting of symmetry, make heavy solid grit separated in inner barrel before rotation rises to the top, flow to circulation channel along letdown tank, thereby reduce the concentration of inner barrel top-heavy solid grit, help the reduction of pressure drop and the raising of efficient.Inner barrel can also have guiding device, and the spiral that helps dusty gas rises.

Task of the present utility model comes to this and finishes.

The utlity model has following advantage: 1, separative efficiency height.The dividing diameter d50 of deduster can be 1.5～3 μ m.2, pressure drop is low.Pressure drop can reach 70～120mmH ₂In the O scope, than the low 15～20mmH of the pressure drop of single tangential circumfluent cyclone ₂O.Energy consumption is low.3, enlarge-effect is little, and treating capacity is big, and operating flexibility is big.It can be widely used in the dedusting of industries such as chemical industry, building materials.

Below in conjunction with embodiment and accompanying drawing thereof the utility model is done further explanation.

Fig. 1 is the structural representation of embodiment 1.

Fig. 2 is the vertical view of Fig. 1.

Illustrated in figures 1 and 2, embodiment 1 is by outer cylinder body 1, constitute with bracing frame and the outer cylinder body 1 coaxial inner barrel that is connected 2, conic tube 3, ash releasing tube 4, end socket 5, central row gas port 6, two one high and one low tangential entry pipes 7.Inner barrel 2 top periphery have 8 letdown tanks 8 of a row.Embodiment 1 pressure drop is low, efficiency of dust collection is high.Dedusting diameter d 50 is 2.3 μ m.It can be widely used in the dust collecting process of fluidized-bed reactor.

Claims

1, a kind of two inlets circumfluent cyclone, inner barrel, the conic tube that is connected in the outer cylinder body lower end, the ash releasing tube that is connected the conic tube lower end that it is connected by outer cylinder body, with bracing frame and outer cylinder body concentric, be connected in the outer cylinder body upper end end socket, be connected in the central row gas port on the end socket and pass the inlet tube that the outer cylinder body lower tangential inserts inner barrel and constituted, it is characterized in that said inlet tube has homodromal two of measure-alike one high and one low so that dusty gas.

2,, it is characterized in that said inner barrel top periphery can have the several rows of groove of putting of symmetry according to the described two inlets circumfluent cyclone of claim 1.