CN1255203C

CN1255203C - Inertial driving centrifugal dust separator

Info

Publication number: CN1255203C
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: 2006-05-10
Anticipated expiration: 2024-06-24
Also published as: CN1575845A

Abstract

The present invention discloses an inertial driving centrifugal dust separator which belongs to the field of industrial environmental protection. The present invention comprises a columnar rotary cylinder which rotates along a centre shaft at a high speed, separating channels are arranged in the rotary cylinder in parallel, an inlet end of dusty gas is arranged at the upper part, an outlet end is arranged at the lower part, the inner wall of the rotary cylinder is a rotational symmetric smooth surface relatively to the centre shaft, isolation layers are inwards arranged from the inner wall of the rotary cylinder in the radial direction, and respectively independent axial small spaces are uniformly divided on the inner wall of the rotary cylinder in the circumferential direction. The inertial driving centrifugal dust separator can realize the corresponding action between dust particles which are in high-speed rotation and dust absorption liquid films without impact, and can suck and deliver gas, a blower which is used in a traditional device for accelerating the gas is eliminated, and therefore, the size is reduced. A supersonic dust removing structure can be formed. The present invention can be used for industrial dust removal, desulphurization, denitration and separation of suspended particles 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 inner radially being listed in of tube and revolve barrel and be provided with a layer and a layer adjacent split tunnel with one heart around axis, the arrival end of dusty gas is arranged on cylindricality and revolves a top, and the port of export is located at cylindricality and revolves a bottom, it is characterized in that, revolving an inwall is to the rotational symmetric shiny surface of axis, in described split tunnel, along the circumferential direction is separated out axial separate small spaces separately equably on the split tunnel inwall.

Described axially separate small spaces separately is elongated shape space vertically.Described cylindricality is revolved an inwall, can be, the up and down isodiametric face of cylinder rotational symmetric to axis, and it is anisodiametric to the rotational symmetric face of cylinder of axis also can be that upper and lower cross section 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 the bulkhead of a horizontal positioned at its gas inlet port or outlet place, presenting that bulkhead along the circumferential direction periodically is separated by has through hole and no through hole spoke-like alternating state, the pattern example that provides as Fig. 4 b, in rotary course, the liquid of spray and gas periodically presented unobstructed and the two states that is obstructed under the structure of this bulkhead 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 that the cohesion that this state can produce grit down forms 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 bulkhead that adds, can make along the circular bulkhead of circumference and also can be made into the ring-type bulkhead, and place it on the outer support of rotating cylinder, when going barrel rotates at a high speed every the hole, 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 bulkhead, can reflection cavity structure such as following shown in Figure 6 be set at the downside at lower part outlet place, described reflection cavity structure, be to establish a plane baffle plate revolving a lower part outlet place, cause the reflection of liquid stream, be a reflection cavity, 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, this Fig. 2 and Fig. 1 are same classes, it is big to belong to upper diameter, and lower diameter is little, is revolving tube inside, it is adjacent, axial separate small spaces separately, be thin-and-long space vertically, its inwall is 3 ', gas 1 with liquid 2 simultaneously from top just the side of top enter this device.Fig. 3 is the barrel structure that revolves of different radial positions outlet, and the import of gas 1 and liquid 2 is all at the top Zheng Ding that revolves tube 3, the port of export 3.2 be in revolve a bottom different-diameter sidewall on.Fig. 4 a is the barrel structure that revolves that bulkhead is arranged, this bulkhead is 4, its structural table is shown in Fig. 4 b, Fig. 4 b is circular bulkhead shape, and this is shaped as spoke shape, is along circumference and through hole and blind hole periodically occur, when revolving tube rotation at a high speed, periodically occur unobstructed and the two states that is obstructed, thereby caused hyperacoustic generation, more help dedusting.Fig. 5 a represents that bulkhead is a kind of embodiment that revolves barrel structure of ring-type, and Fig. 5 b is annular shelves partition shape, also periodically has the state of through hole and no through hole on ring.Fig. 6 and Fig. 7 respectively represent the embodiment of other two kinds of structures, Fig. 6 represents to have the structure of reflection cavity 3.3,3.2 places are provided with a baffle plate 4 ' in outlet, it has caused the reflection of liquid stream, and formed the reflection cavity structure 3.3 that can cause standing wave, this structure has formed hyperacoustic standing wave in the liquid stream, 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, and this structure can reduce the liquid that exit gas impacts absorption dust and cause atomizing.Fig. 8 a represents to revolve an inner diameter and is the not tube structure figure on the equal diameter face of cylinder of up-small and down-big axial symmetry, and the space that inwall 3 comprises separates and forms the little space of separating, 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, be the not another kind of tube structure on the equal diameter face of cylinder of axial symmetry for revolving an inwall, this also is to revolve the up-small and down-big planform of an inner diameter, the bottom also is provided with deflector.

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, revolving inner radially being listed in of tube revolves barrel and is provided with a layer and a layer adjacent split tunnel with one heart around axis, the arrival end of dusty gas is arranged on cylindricality and revolves a top, the port of export is located at cylindricality and revolves a bottom, it is characterized in that, revolving an inwall is to the rotational symmetric shiny surface of axis, in described split tunnel, along the circumferential direction on the split tunnel inwall, be separated out axial separate small spaces separately 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 elongated shape space vertically.

3, inertia according to claim 1 drives the centrifugal dust-removing device, it is characterized in that, it can be to the rotational symmetric upper and lower isodiametric face of cylinder of axis that described cylindricality is revolved an inwall, and it is anisodiametric to the rotational symmetric face of cylinder of axis also can be that upper and lower cross section 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 a bulkhead at its gas inlet port or outlet place, bulkhead along the circumferential direction periodically is separated by has through hole and two kinds of alternate shaped of no through hole.

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

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 bulkhead, can one plane baffle plate be set at the downside at lower part outlet place, forms the reflection cavity structure.

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.