CN1575845A

CN1575845A - Inertial driving centrifugal dust separator

Info

Publication number: CN1575845A
Application number: CN 200410049704
Authority: CN
Inventors: 潘雨力
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-06-26
Filing date: 2004-06-24
Publication date: 2005-02-09
Anticipated expiration: 2024-06-24
Also published as: CN1255203C

Abstract

The inertially driven centrifugal deduster used in industrial environment protecting field includes one cylinder with smooth inner wall and rotating around the central axle at high speed, separated passages parallelly configured inside the cylinder, dust bearing gas inlet in the upper part and outlet in the lower part, and isolating layers inside the rotating cylinder to separate independent small spaces. The inertially driven centrifugal deduster makes the dust particle in high speed rotation act with the dust absorbing liquid film without impact, produces gas pumping effect and forms ultrasonic dedusting structure. Compared with traditional deduster with blower, the present invention has reduced volume. The present invention may be used in industrial dedusting, desulfurizing, denitration and the separation of suspended particle in liquid.

Description

Inertia drives the centrifugal dust-removing device

Technical field

The invention belongs to the industry environmental protection field, specially refer to a kind of device that in industrial production, utilizes centrifugal inertial force to carry out effective dedusting.

Background technology

In the big production of industry, often there is waste gas to discharge, for environmental protection, exhaust must reach certain standard, so must handle dedusting.General deduster, be difficult to the floating dust granules of clean dust diameter less than 1 μ M, in prior art, removing for dedusting in the industrial production and pernicious gas, traditional practice is to adopt centrifugal dust collector, in the dedusting, gas is in different radial position rotating speed differences, so centrifugal force can be very not big; The rotating vane that the gas rotating speed is increased also can't rotate too fast, if rotate too fast, gas impacts moisture film, effective absorption of moisture film will be destroyed, reduce efficiency of dust collection, can't Ex-all for tiny dust, in order to improve dust Ex-all power, especially carry out dedusting at molecule and the reluctant gas of general deduster, the inventor has developed a kind of new constructional device, adopt the rotary drum of rotation at a high speed, make gas, liquid rotates simultaneously, and the device that relies on centrifugal inertial force to carry out effective dedusting, this device can make separating factor (being centrifugal force and the ratio of gravity) reach very high numerical value, this device also has the function of renewal simultaneously, makes efficiency of dust collection higher.

Summary of the invention

The technical issues that need to address of the present invention, be in traditional centrifugal dust collector, micronic dust removes unclean, efficiency of dust collection is low, many defectives such as structure falls behind, for overcoming these weak points, the inventor redesigns a kind of high speed rotation, a kind of inertia that Ex-all molecule efficient is high drives the centrifugal dust-removing device, for reaching this goal of the invention, be to adopt following technical scheme to realize, a kind of inertia drives the centrifugal dust-removing device, comprise that a cylindricality of rotating at a high speed along axis revolves tube, revolve an inside and be provided with split tunnel side by side that the arrival end of dusty gas is arranged on top, the port of export is located at the bottom, it is characterized in that revolving an inwall is that an inwall is inside by revolving to the rotational symmetric shiny surface of axis, radially be equipped with separation layer, along the circumferential direction be separated out axial separate small spaces separately on the inwall revolving equably.

Described axially separate small spaces separately is the elongated shape space of axial distribution.Described cylindricality is revolved an inwall, can be to the rotational symmetric smooth face of cylinder of axis, and it is anisodiametric to the rotational symmetric smooth round table surface of axis also can be that upper/lower terminal has.The arrival end of described dusty gas is provided with spray nozzle, mixes with dusty gas after making the atomization of liquid, is entered by this arrival end and revolves in the tube.

In this device, allow dusty gas by revolving the isolated thin-and-long of inwall space, dusty gas is driven to rotate when device rotates at a high speed, dust in the gas revolves an inwall and falls thereon because of what be thrown toward by centrifugal force to be separated out, dust is glided along smooth inwall by the effect of gravity and centrifugal force component, derives respectively through deflector and clean gas; Because the separation of dust is in a long and narrow space, dusty gas has consistent rotating speed, thus also basically identical of the centrifugal force that is subjected to, thus can both effectively separate all gas.When there is hydrojet the dusty gas porch, because revolving an inwall is that countershaft is rotational symmetric, liquid can revolve one deck liquid film that forms uniform thickness on the inwall when therefore system rotated, here because the gas of rotation can form very big pressure to liquid film, this has just increased the interaction of gas and liquid film, thereby can be to micronic dust, SO in the gas ₂, NO ₂Realize to absorb Deng chemical gas, because gas and liquid film rotation and relative velocity is very little at a high speed simultaneously in this device, so can not destroy the uniformity of absorption liquid film.Another of this device particularly, when the radius of turn of dirt gas porch countershaft during less than the radius of turn of exit countershaft, because action of centrifugal force, device has the pumping effect to the dusty gas of inlet.

Described cylindricality is revolved a shell, its cover top portion can be arranged to uncovered structure, also can add one grade of dividing plate at its gas inlet port or outlet place, the shelves dividing plate along the circumferential direction periodically is separated by presents through hole and two kinds of alternating states of solid slab, in rotary course, the liquid of spray and gas periodically presented unobstructed and the two states that is obstructed under the structure of this shelves dividing plate made, when rotating to be fast state, liquid and gas in spray down then produce ultrasonic wave because of the impact of pulse gas, equivalence is a supersonic generator, facts have proved, the cohesion that this state can produce grit down, form big grit, thereby easilier adsorbed, make efficiency of dust collection further be improved by liquid film.And because hyperacoustic scale removal effect makes this equipment also have automatic cleaning action, i.e. the grit that is deposited on the self-cleaning gas-liquid effect arc surface.To similar SO ₂Deng chemical gas, make gas produce very big pressure owing to revolve the tube rotation to absorbing liquid on the arc surface, increased the interaction of gas and liquid film, improved the absorptivity of absorption liquid to gas.The described shelves dividing plate that adds, can make a circular shelves dividing plate that separates the hole along circumference and also can be made into ring-type shelves dividing plate, and place it on the outer support of rotating cylinder, when going barrel rotates at a high speed, because alternately occurring of gas circuit switching, produce gas shock and form ultrasonic wave.In order to utilize the effect of ultrasonic wave in the Ex-all process more fully, for containing the revolving in the barrel structure of grade dividing plate, can be at the downside at lower part outlet place, the reflection cavity structure is set, make ultrasonic wave in revolving each independent little space of tube, form standing wave, like this, can more effectively carry out dedusting.Fill the air for fear of the liquid that has adsorbed dust granules and to be diffused into surrounding enviroment and to cause new pollution, for the lower part outlet place that tube is revolved in taper, can install a deflector, it can reduce the liquid that exit gas impacts absorption dust and cause atomizing.

The beneficial effect of this device is, this inertia drives the centrifugal dust-removing device can make that dust granules in the rotation at a high speed is relative with the dust suction liquid film to be had the ground of impact and act on and gas is had the pumping effect, removing the special-purpose air blast of legacy equipment from is that gas quickens, thereby reduces the volume of knowing clearly.Can form the supersonic dust removal structure, the present invention can be used for industrial dedusting, desulfurization, denitration and separation of suspended particle in liquid.

Description of drawings

Fig. 1 is the centrifugal dust collector that traditional dedusting is adopted

Fig. 2 has the barrel structure that revolves of separation spacing for the present invention

Fig. 3 is the barrel structure that revolves of different radial position outlets

Fig. 4 a is the barrel structure that revolves that top shelves dividing plate is arranged

Fig. 4 b is the shape of circle shelves dividing plate

Fig. 5 a be have stent support the shelves dividing plate revolve barrel structure

Fig. 5 b is annular shelves partition shape

Fig. 6 revolves barrel structure for having reflection cavity

Fig. 7 has the barrel structure that revolves of deflector for device

Fig. 8 a revolves the tube structure that an inwall is up-narrow and down-wide axial symmetry round table surface

Fig. 8 b is the top plan view of last structure

Fig. 9 is axisymmetric another kind of round table surface tube structure for revolving an inwall

Specific implementation method

With reference to Fig. 1, represent traditional centrifugal dust arrester structure, 1 for containing the gas of dust granules among the figure, the liquid that sprays is 2, and in most cases water also can be other liquid as adsorbing medium, as alkali, salting liquid, it revolves tube 3 upper portion side wall opening parts 3.1 by cylindricality and enters.With reference to Fig. 2, the separation spacing type that expression separates among the present invention revolve barrel structure, its inwall is 3 ', gas and liquid simultaneously from top just the side of top enter this device.Fig. 3 is the barrel structure that revolves of different radial position outlets, and the import of gas and liquid is all at top Zheng Ding, and the port of export 3.2 is on the sidewall that revolves a bottom.Fig. 4 a is the barrel structure that revolves that grade dividing plate is arranged, and the shelves dividing plate is 4, and Fig. 4 b is circular shelves partition shape, revolves the high speed rotation of tube, has caused hyperacoustic generation, more helps dedusting.Fig. 5 a represents that grade dividing plate is a kind of embodiment that revolves barrel structure of ring-type, and Fig. 5 b is annular shelves partition shape.Fig. 6 and Fig. 7 respectively represent the embodiment of other two kinds of structures, and Fig. 6 represents to have the structure of reflection cavity 3.3, and this structure has formed hyperacoustic standing wave, and the formation of revolving a standing internal wave can make dust removing effects strengthen.What Fig. 7 represented to be equipped with deflector 3.4 revolves the barrel structure schematic diagram.Fig. 8 a represents to revolve the tube structure figure that an inwall is up-narrow and down-wide axial symmetry round table surface, and the space that inwall 3 ' comprises separates the little space that forms separation, and dust glides after deflector 3.4 is discharged.Fig. 8 b is the top plan view of structure shown in Fig. 8 a.With reference to Fig. 9, for revolving the another kind of tube structure that an inwall is the axial symmetry round table surface.

Claims

1, a kind of inertia drives the centrifugal dust-removing device, comprise that a cylindricality of rotating at a high speed along axis revolves tube, revolve an inside and be provided with split tunnel side by side, the arrival end of dusty gas is arranged on top, and the port of export is located at the bottom, it is characterized in that, revolving an inwall is to the rotational symmetric shiny surface of axis, an inwall is inside by revolving, and radially is equipped with separation layer, along the circumferential direction is separated out axial separate small spaces separately on the inwall revolving equably.

2, inertia according to claim 1 drives the centrifugal dust-removing device, it is characterized in that, described axially separate small spaces separately is the elongated shape space of axial distribution.

3, inertia according to claim 1 drives the centrifugal dust-removing device, it is characterized in that, it can be to the rotational symmetric smooth face of cylinder of axis that described cylindricality is revolved an inwall, and it is anisodiametric to the rotational symmetric smooth round table surface of axis also can be that upper/lower terminal has.

4, inertia according to claim 1 drives the centrifugal dust-removing device, it is characterized in that the arrival end of described dusty gas is provided with spray nozzle, mixes with dusty gas after making the atomization of liquid, is entered by this arrival end and revolves in the tube.

5, inertia according to claim 1 drives the centrifugal dust-removing device, it is characterized in that, described cylindricality is revolved a shell, uncovered structure can be arranged in its top, also can add one grade of dividing plate at its gas inlet port or outlet place, the shelves dividing plate along the circumferential direction periodically is separated by presents through hole and two kinds of alternate shaped of solid slab.

6, inertia according to claim 1 drives the centrifugal dust-removing device, it is characterized in that, the described shelves dividing plate that adds can be made the circular shelves dividing plate along the circle spacing perforate, also can be made into ring-type shelves dividing plate.

7, inertia according to claim 1 drives the centrifugal dust-removing device, it is characterized in that, for containing the revolving in the barrel structure of grade dividing plate, can be arranged to the reflection cavity structure at the downside at lower part outlet place.

8, inertia according to claim 1 drives the centrifugal dust-removing device, it is characterized in that, at described axially separate small spaces lower part outlet place separately, can install a deflector, disengages in order to separator is separated with clean gas.