CN100361741C - Coaxial biconic device in two stages for separating gas from solid rapidly - Google Patents
Coaxial biconic device in two stages for separating gas from solid rapidly Download PDFInfo
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- CN100361741C CN100361741C CNB200410080801XA CN200410080801A CN100361741C CN 100361741 C CN100361741 C CN 100361741C CN B200410080801X A CNB200410080801X A CN B200410080801XA CN 200410080801 A CN200410080801 A CN 200410080801A CN 100361741 C CN100361741 C CN 100361741C
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Abstract
The present invention relates to a coaxial double-cone two-state gas and solid fast separation device. Both sides at the upper end of a separator are provided with gas guiding pipes, and the lower end is communicated with a particle guiding pipe. A contracted nozzle and an outer expansion baffle plate which comprises the nozzle are arranged in the inlet position, and a primary discrete cone, a secondary cone and a supporting device are orderly arranged below the contracted nozzle. The primary cone is composed of a conical table formed by overlapping thin circular discs with different diameters and the same thickness and a conical part overlapped on the end surface of the conical table. The secondary cone is a hollow trapezoidal circular table with an upper small part and a lower big part. The present invention uses the inertial difference between gas and solid, a two-stage separation cone is used, the guide, the concentration and the separation functions of the contracted nozzle, the outer expansion baffle plate and a ring-shaped baffle plate are matched, and the fast high efficiency separation of gas and solid is realized. The present invention can conveniently adjust the structure so as to fit to gas and solid separation requirements of different dimensions and different operating conditions, and has the advantages of simple and compact structure, low pressure drop, large operating flexibility and little abrasion effect.
Description
Technical field
The invention belongs to the gas-solid separation equipment in the chemical field, particularly a kind of coaxial biconic device in two stages for separating gas from solid rapidly.
Background technology
In the last few years, because the continuous appearance of high activity, high-selectivity catalyst and high temperature fast reaction process, gas-solid cocurrent flow descending recirculating fluidized bed (descending bed) is as a kind of novel ultrashort contact reactor, obtaining attention more and more widely aspect the fast pyrogenation of the fluidized catalytic cracking of hydrocarbon compound, coal dust and the REVIEW ON FAST PYROLYSIS OF BIOMASS FOR BIO-OIL.For the ultrashort contact reactor of this class, seem more and more important quick separation of reactor outlet gas and particle.The catalytic cracking reaction of hydro carbons for example, reaction temperature is more and more higher, and therefore reaction generally can be finished in 3 to 5 seconds, even shorter.The shortening in reaction time requires the terminal oil gas of reactor to separate fast with catalyst, to realize the short residence time of oil gas, prevents the generation of the drastic cracking and the coke of oil gas under the high temperature.For such fast reaction process, traditional gas-solid separator such as cyclone separator are longer owing to the time of staying, will be no longer suitable.Scientific research institution has carried out R and D at the solid fast separating device of working off one's feeling vent one's spleen of descending bed flashing reactor both at home and abroad.
U.S. Pat 4,556,541 (1985), US5,391,289 (nineteen ninety-fives), US5,976,355 (1999) have proposed a kind of U-shaped turning type fast gas-solid separator.Through 180 ° turn to, particle has been because 90 ° turnover has only taken place to gas in bigger inertia in separator, and piles up in the separator bottom and to have formed about 90 a ° crooked cambered surface.The formation of this particle packing face can prevent to enter in the separator particle directly with the separator collision, reduce wearing and tearing, but also increased air-flow to the impact of the accumulation bed of material with carry secretly separator.This cyclone separator arrangement is simple, and the gas phase time of staying is shorter, but because particle entrainment is more serious, separative efficiency is not high.
Chinese patent CN1267564A has proposed a kind of wall-attached cutting type fast gas-solid separator.Mainly to be the difference of utilizing gas-solid inertia in the two phase flow realize separating of gas-solid with cutting on the locus with this separator.This separator is similar to horizontal cyclone separator, and gas will repeatedly rotate in the separator cylinder, so the time of staying of gas is longer relatively.
Summary of the invention
The objective of the invention is to overcome problems such as the structural change that prior art exists is dumb, separative efficiency is not high, pressure drop is high, the time of staying is long.The present invention utilizes the difference of gas-solid two alternate inertia, take the two-stage separation cone, and the nozzle that contracts in cooperating, extend out baffle plate and ring baffle guiding, concentrate and centrifugation, realize that gas-solid separates fast and efficiently, and the characteristics of discrete awl of utilization and separation cone cushion cap, utilize existing accessory to adjust the structure of separator easily to adapt to the requirement of different scales different operating condition, simultaneously this separator also have simple in structure, compact, pressure drop is low, operating flexibility is big, the advantage that effect of attrition is little.
Technical scheme of the present invention is as follows:
Coaxial biconic device in two stages for separating gas from solid rapidly provided by the invention comprises:
One separation container; This separation container comprises cylinder type separation container top 100 and the pyramid type separation container bottom 200 that is connected with its lower end; The upper surface of described cylinder type separation container 100 is provided with the inlet tube 9 that is connected with descending bed flashing reactor outlet, both sides, described cylinder type separation container 100 upper end are respectively equipped with a gas eduction tube 10, and 200 lower ends, described pyramid type separation container bottom are communicated with a particle delivery line 11;
One is installed in the separation container nozzle 2 that contracts in the inlet at 91 places that enters the mouth;
One be installed in separation container enter the mouth 91 places and will enter the mouth in contract nozzle 2 contain its interior pyramid type and extend out baffle plate 1; And
Be installed in the bracing or strutting arrangement of the discrete awl 3 of one-level, secondary awl 4 and the discrete awl 3 of one-level and the secondary awl 4 of nozzle 2 belows of contracting in the inlet successively; The discrete awl 3 of described one-level comprises the frustum of a cone that the thin disk bond of the equal thickness that is not waited by diameter forms, form at the tapered segment 21 of described frustum of a cone upper surface with bond, the conical surface of the described frustum of a cone is the spill arc surfaced, and the lower surface of the nozzle 2 that contracts in the upper end of described tapered segment 21 is bored point and entered the mouth flushes;
Described secondary awl 4 is the up-small and down-big trapezoidal round platform of a hollow, is fixed on the secondary awl pallet 5, and the shape of described secondary awl pallet 5 is identical with the shape of vehicle steering;
Described bracing or strutting arrangement comprises the bracing frame 300 that the right-angled intersection bond is fixed that is that is fixed on cylinder type separation container top 100 and 200 junctions, pyramid type separation container bottom, one pillar 7 is installed in the vertical cushion cap 8 of fixing in the center of this bracing frame 300, the centre bore of described cushion cap 8; Described pillar 7 upper ends penetrate the centre bore of secondary awl 4 and the discrete awl 3 of one-level successively, the vertical locating hole that is provided with of described separation cone pillar 7, and it is fixing that the screw that penetrates locating hole is bored pallet 5 and position secondary awl 4 and the discrete awl of one-level 3 thereon with secondary.
Described separation container 91 diameters that enter the mouth are D, and cylinder type separation container top 100 diameters of separation container are 5.4～6.5D, highly are 5.0～6.0D; In the nozzle upper diameter that contracts be D, lower diameter with highly be 0.6～0.8D.The tapered lower end diameter that extends out baffle plate 1 of described cylindrical is 3～4D, highly is 2.2～2.4D.The radius of curvature R of the discrete awl of described one-level 3 concave conical surface is 1.5D～2.5D, and the cambered surface angle θ of the discrete awl 3 of described one-level is 45 °～65 °.The upper base diameter of described secondary awl 4 is 2.0D～3.5D, the diameter of going to the bottom is 3.0～3.5D, height is 0.5～0.65D, the vertical range of the discrete awl of upper bottom surface and one-level 3 bottoms is 0～0.2D, and the discrete awl of described one-level 3 bottom margins are projected in described secondary and bore projecting edge on 4 upper bases and bore with secondary that the horizontal range between the feather edge is 0.15～0.25D on 4.Described secondary awl pallet 5 lower ends fixedly mount a ring baffle 6, and the diameter of this ring baffle 6 is 3.0～3.5D, highly is 0.02～0.06D.
The diameter of described gas vent conduit 10 is 0.3～0.4D, is symmetrical distribution.
Coaxial biconic device in two stages for separating gas from solid rapidly of the present invention has the following advantages:
Coaxial biconic device in two stages for separating gas from solid rapidly of the present invention has overcome problems such as the structural change of separator is dumb in the prior art, separative efficiency is not high, pressure drop is high, the time of staying is long; Utilize the difference of gas-solid two alternate inertia, take the two-stage separation cone, and the nozzle that contracts in cooperating, extend out baffle plate and ring baffle guiding, concentrate and centrifugation, realize that gas-solid separates fast and efficiently, and utilize the characteristics of discrete awl and separation cone cushion cap, the structure of utilizing existing accessory adjustment separator easily to be to adapt to the requirement of different scales different operating condition, simultaneously this separator also have simple in structure, compact, pressure drop is low, operating flexibility is big, the advantage that effect of attrition is little.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention;
Accompanying drawing 2 is the schematic diagram of material gas solid separation in separator of the present invention;
Accompanying drawing 3 is the structural representation of the discrete awl 3 of one-level;
Accompanying drawing 4A is the profile schematic diagram of secondary awl 4;
Accompanying drawing 4B is the vertical view of accompanying drawing 4A;
Accompanying drawing 5 is the structural representation of secondary awl pallet 5;
Accompanying drawing 6A is the profile schematic diagram of ring baffle 6;
Accompanying drawing 6B is the vertical view of accompanying drawing 6A;
Wherein: pyramid type separation container bottom 200 cylinder type separation containers 100
Inlet tube 9 gas eduction tubes 10
Delivery line 11 separation containers inlet 91
The discrete awl 3 of nozzle 2 one-levels that contract in the inlet
Secondary is bored 4 tapered segments 21
Bracing frame 300 discrete awl cushion caps 8
Secondary awl pallet 5 separation cone pillars 7
Ring baffle 6 separation containers 91 diameters that enter the mouth are D
The radius of curvature R of the discrete awl of one-level 3 concave conical surface
Angle theta between at the bottom of the horizontal line of circular cone part 21 awl points and the awl of the discrete awl 3 of one-level
The specific embodiment
Introduce workflow of the present invention below in conjunction with Fig. 2.As shown in Figure 2, solid arrow is represented solid particle, and empty arrow is represented gas, and the thickness of arrow is represented the size of flow.After gas-solid mixture left reactor and enters separator main body, via the closing in of the nozzle 2 that contracts in the inlet, the trend that assemble at the oriented center of gas-solid two-phase obtained an of short duration acceleration simultaneously, and the concentration of solid particle is concentrated to the center; Subsequently, the gas-solid two-phase at first contacts the discrete awl 3 of one-level, discrete awl is then because the accumulation of solid particle on the water conservancy diversion disk forms one near the desirable arc conical surface, under the guide functions of the discrete awl 3 of one-level, the direction of motion of gas-solid two-phase changes on the conical surface, because the difference of gas-solid two-phase inertia, the gas-solid two-phase is through the guide functions of the discrete awl 3 of one-level, when leaving the conical surface, most of solid enters the inside of secondary awl 4 along the direction shown in Fig. 2 solid arrow, most of gas then along the direction of empty arrow from secondary awl outside and outside space between the enlarging inboard move, realize the separation of the first order thus.Small part gas and most of solid particle are along the internal motion of secondary awl; under the effect of the guiding of secondary awl 4 and ring baffle 6; solid particle is fallen the separator below along vertical direction basically; discharge from particle outlet; small part gas is walked around ring baffle 6 and is moved upward, and discharges from gas eduction tube 10 with the gas of separating through the first order.Still carry a part of solid particle secretly through the gas after the one-level separation, after through secondary awl 4, most of solid particle is discharged from particle outlet at last because its inertia still down moves, enter gas and carry system or follow-up equipment, small part is carried secretly by gas eduction tube 10 by updraft and is discharged.Through the effect of discrete awl 3 of one-level and secondary separation cone 4, the gas-solid two-phase is separated substantially.
Further describe the present invention below more in conjunction with the accompanying drawings:
Accompanying drawing 1 is a structural representation of the present invention; Accompanying drawing 3 is the structural representation of the discrete awl 3 of one-level; Accompanying drawing 4A is the profile schematic diagram of secondary awl 4; Accompanying drawing 4B is the vertical view of accompanying drawing 4A; Accompanying drawing 5 is the structural representation of secondary awl pallet 5; Accompanying drawing 6A is the profile schematic diagram of ring baffle 6; Accompanying drawing 6B is the vertical view of accompanying drawing 6A; As seen from the figure, coaxial biconic device in two stages for separating gas from solid rapidly of the present invention comprises:
One separation container; This separation container comprises cylinder type separation container top 100 and the pyramid type separation container bottom 200 that is connected with its lower end; The upper surface of described cylinder type separation container 100 is provided with the inlet tube 9 that is connected with descending bed flashing reactor outlet, both sides, described cylinder type separation container 100 upper end are respectively equipped with a gas eduction tube 10, and 200 lower ends, described pyramid type separation container bottom are communicated with a particle delivery line 11; One is installed in the separation container nozzle 2 that contracts in the inlet at 91 places that enters the mouth;
One be installed in separation container enter the mouth 91 places and will enter the mouth in contract nozzle 2 contain its interior pyramid type and extend out baffle plate 1; And
Be installed in the bracing or strutting arrangement of the discrete awl 3 of one-level, secondary awl 4 and the discrete awl 3 of this one-level and the secondary awl 4 of nozzle 2 belows of contracting in the inlet successively; The discrete awl 3 of described one-level comprises the frustum of a cone that the thin disk bond of the equal thickness that is not waited by diameter forms, form at the tapered segment 21 of described frustum of a cone upper surface with bond, the conical surface of the described frustum of a cone is the spill arc surfaced, and the lower surface of the nozzle 2 that contracts in the upper end of described tapered segment 21 is bored point and entered the mouth flushes;
Described secondary awl 4 is the up-small and down-big trapezoidal round platform of a hollow, is fixed on the secondary awl pallet 5, and the shape of described secondary awl pallet 5 is identical with the shape of vehicle steering;
Described bracing or strutting arrangement comprises the bracing frame 300 that the right-angled intersection bond is fixed that is that is fixed on cylinder type separation container top 100 and 200 junctions, pyramid type separation container bottom, the vertical discrete awl cushion cap 8 of fixing in the center of this bracing frame 300 is installed a separation cone pillar 7 in the centre bore of described discrete awl cushion cap 8; Described separation cone pillar 7 upper ends penetrate the centre bore of secondary awl 4 and the discrete awl 3 of one-level successively, the vertical locating hole that is provided with of described separation cone pillar 7, and it is fixing that the screw that penetrates locating hole is bored pallet 5 and position secondary awl 4 and the discrete awl of one-level 3 thereon with secondary.
The inlet 91 of this separator is circular, and the inlet size is big or small consistent with the outlet of descending bed flashing reactor, and with the characteristic size of this size as separator, so that according to the separator of the suitable size of scale design of reactor.The porch connects the nozzle 2 that contracts in the inlet, be beneficial to gas-solid two in opposite directions the vertex of a cone of the discrete awl 3 of one-level assemble, because the gas-solid two-phase is left the space that a sudden expansion is arranged behind the nozzle 2 that contracts in the inlet, be convenient to portion gas and be separated away simultaneously from mixing.In the first separation of this sudden expansion, gas can be carried considerable solid particle secretly, and the existence that extends out baffle plate has stopped that then this part gas-solid mixture is directly from gas eduction tube 10 discharges.
On the discrete conical surface, the solid particle place between each water conservancy diversion disk is soon piled up, make the discrete conical surface become a continuous conical surface, follow-up solid particle will directly bump with the solid particle that is deposited on the flow guiding disc, thereby the wearing and tearing of discrete awl are reduced accordingly, and on the other hand, the wearing and tearing of water conservancy diversion disk border also help the formation of the continuous conical surface, therefore, for the discrete conical surface of this form, can needn't consider its abrasion condition fully.
Guide functions through the discrete awl 3 of one-level, the gas-solid two-phase is separated owing to inertia is in different size, suitably adjust the position of secondary awl 4, make solid particle enter the inboard of secondary awl 4 along downward oblique parabola, the then most of outer survey campaign of gas phase along the secondary awl, and carry the fraction solid particle secretly.At this moment, because the lateral velocity of gas phase increases,, then there is the solid particle of quite a few directly to be entrained out if there is not the existence that extends out baffle plate.1 on the baffle plate that extends out of the present invention is to bore 4 outsides and move in the space that extends out between baffle plate 1 inboard for the gas that forces primary separation and separate through discrete awl along secondary, in the exit, space, gas turns is discharged from gas eduction tube 10, and most of solid particle of carrying secretly then is separated.
Most of solid particle of lateral movement and small part gas are then owing to the guiding of secondary awl and stopping of ring baffle 6 in secondary awl 4, particle finally vertically directly falls into granular gas delivery line 10 and enters stripper plant or follow up device, the gas phase part is then walked around ring baffle 6 and is moved upward, and discharges from gas eduction tube 10.
Use the separator of this structure, the direct collision with the separator wall does not take place in solid phase from the beginning to the end, has both prevented from the one hand the particle entrainment that causes because of collision reaction from separative efficiency to be reduced, and has also avoided the wearing and tearing of wall on the other hand.
Fig. 3 is the elevation of the discrete awl 3 of one-level, solid particle is piled up the continuous conical surface of back formation on discrete awl angle is θ, cambered surface radius is R, the thickness of disk can be selected according to required cambered surface precision, and the more little cambered surface that then forms of thickness is accurate more, but required disk quantity is also many more, the big more then required disk number of thickness is more little, but thickness is unfavorable for forming desirable cambered surface too greatly, and the collision of particle and disk also will be fierce more simultaneously, carry secretly many more.Through experiment test, the size of discrete awl cambered surface angle is obvious to the influence of separative efficiency, and the more little separative efficiency of angle is high more, but along with further the reducing of angle, separative efficiency reduces on the contrary, and is unfavorable for that gas discharges apace.Therefore cambered surface angle θ is generally more suitable at 45 °～65 °.Cambered surface radius is not obvious to the influence of separative efficiency.
Fig. 4 is the facade and the plane of secondary awl 4, the secondary awl will separate via the gas-solid two that the discrete awl of one-level is separated on the one hand, also stop on the other hand to fall into the inboard solid particle of secondary awl and carried secretly away, also do secondary separation with extending out the small amount of solid particle that baffle plate 1 makes most of gas of separating carry secretly with it.
Fig. 5 is the plane of secondary awl pallet 5, and it mainly acts on is support secondary awl 4.A hole is opened at the pallet center, allows the separation cone pillar pass, and is fixed on the separation cone pillar 7 with a tip nail.
Fig. 6 is ring baffle 6 facades and plane, is fixed under the secondary awl pallet, and its effect is the tracks that changes solid particle, forces particle to move downward, and directly falls in the discharge nozzle, and the while has also prevented the collision of solid particle and separator wall and carried secretly.Secondary is bored the gas phase of 4 inboards and is then walked around ring baffle 180 degree, upwards discharges from wireway 10.
According to different operating parameters and requirement, as long as the physical dimension of appropriate change apparatus of the present invention, then this device can satisfy the quick separation needs of descending-bed reactor outlet gas-solid mixing phase, also can be used as the primary separation device that gas-solid mixes phase.Through experiment measuring, this type device can reach more than 98% mixing the particle separation efficient of particle diameter between 10～100 μ m under the various operating conditions, and the gas phase time of staying, the overall presure drop of separator was about 100Pa below 1s.Its gas eduction tube 10 can with secondary gas solid separation system, link to each other as cyclone separator, perhaps directly enter follow-up gas-treatment means, solid particle is then by the direct drain separator main body of particle outlet.Because solid particle is not direct and wall collision in separator, the wearing and tearing of particle and wall are minimum, though and solid particle is direct and the discrete awl collision of one-level, but formation along with continuous cambered surface, abrasion condition is also very little, and the suitable wearing and tearing of discrete awl also more help the formation of continuous cambered surface, enter sound operation thus.On the other hand, because the discrete awl 3 of one-level is taked the form that disperses, dismounting is changed, and changes the cambered surface angle and just becomes very convenient, and material and processing capacity have been saved in the operating parameter continuation use down that the water conservancy diversion disk of use can also be afterwards greatly.
The present invention can be applicable to the downlink cycle fluidized system:
With solid materials such as living beings or coal dust through pulverize, screening powdering material, and after carrying out the drying processing, send into the blender admittedly of a normal pressure, and mix rapidly with heat ash from CFBB, enter down pipe, after the fast pyrogenation reaction, the elevated temperature heat of generation is vented one's spleen and the semicoke material enters fast gas-solid separator of the present invention, elevated temperature heat after the separation is vented one's spleen and is entered a rapid condensation device rapidly, and solid phase semicoke and cycling hot ash then enter burning in circulating fluid bed boiler.
2. catalyst is after the regeneration of two-part riser regenerating unit, enter the descending-bed reactor main body by the efficient mixing distributor of many duct types fluid bed jointly with feedstock oil and steam, through after the ultrashort haptoreaction, oil gas and catalyst enter fast gas-solid separator of the present invention.Oil gas after the separation enters the next stage piece-rate system by gas phase delivery line 10, and solid particle then enters and is used for the turbulent fluidized bed equipment that gas is carried, and the particle after gas is carried enters two-part riser reclaim equiment and regenerates, and realizes the cycling of catalyst granules.
Embodiment 1
The geometry size of the separator of present embodiment is respectively: the diameter on pyramid type separation container top 100 is 5.4D, highly is 6.0D, and the separator inlet diameter is D; In nozzle 2 upper diameter that contract be D, lower diameter with highly be 0.8D, extending out baffle plate 1 bottom radius is 1.8D, upper diameter is 1.1D, highly is 2.2D, and the radius of curvature of the discrete awl 3 of one-level is 1.5D, the cambered surface angle is 65 degree, it is 2.0D that secondary is bored 4 upper bases, goes to the bottom to be 3.0D, and height is 0.6D, the vertical range of the discrete awl of upper bottom surface and one-level 3 bottoms is 0.1D, ring baffle 6 highly is 0.02D, and diameter is 3D, and gas conduit 10 diameters are 0.6D.The average gas speed of the nozzle 2 of contracting in inlet 4.4m/s adopt 60 microns of average grain diameters, apparent density 1500kg/m
3The FCC material, particle cycle rate 20kg/ (m
2S).Separative efficiency is 99.0%, and gas on average stops and is about 1s, and the pressure drop of separator is about 100Pa.
Present embodiment changes the discrete awl of the one-level of separator 3 radius of curvature into 2.5D, and the cambered surface angle changes 45 degree into, nozzle 2 lower diameter that contract in the inlet with highly all change 0.7D into, extend out baffle plate 1 and highly change 2.4D into, bottom radius is 2.0D, and operating gas velocity is 5m/s, particle cycle rate 26kg/ (m
2S) outside, all the other are all identical with embodiment 1, and this moment, efficiency separator was 98.6%, gas mean residence time 900ms, and separator pressure-drop is about 80Pa.
The characteristics that descending-bed reactor utilizes the gas-solid two-phase to move downward along gravitational field, adapting to especially with the intermediate product is the fast reaction process of purpose product.Under normal conditions, the mixing of gas-solid two-phase, the reaction in down pipe, the processes such as quick separation of reaction back gas-solid two-phase were finished within 1 second, and therefore using efficiently fast, gas-solid separator just seems quite important.
Claims (7)
1. coaxial biconic device in two stages for separating gas from solid rapidly comprises:
One separation container; This separation container comprises cylinder type separation container top (100) and the pyramid type separation container bottom (200) that is connected with its lower end; The upper surface of described cylinder type separation container (100) is provided with the inlet tube (9) that is connected with descending bed flashing reactor outlet, both sides, described cylinder type separation container (100) upper end are respectively equipped with gas eduction tube (10), and lower end, described pyramid type separation container bottom (200) is communicated with a particle delivery line (11);
One is installed in the nozzle (2) that contracts in the inlet that separation container inlet (91) locates;
One be installed in separation container inlet (91) locate and will enter the mouth in the nozzle (2) that contracts contain its interior pyramid type and extend out baffle plate (1); And
Be installed in the discrete awl of one-level (3), secondary awl (4) and the discrete awl of described one-level (3) thereof of nozzle (2) below of contracting in the inlet, the bracing or strutting arrangement of secondary awl (4) successively;
The discrete awl of described one-level (3) comprises the frustum of a cone that the thin disk bond of the equal thickness that is not waited by diameter forms, form at the tapered segment (21) of described frustum of a cone upper surface with bond, the conical surface of the described frustum of a cone is the spill arc surfaced, and the lower surface of the nozzle (2) that contracts in the upper end of described tapered segment (21) is bored point and entered the mouth flushes;
Described secondary awl (4) is the up-small and down-big trapezoidal round platform of a hollow, is fixed on the secondary awl pallet (5), and the shape of described secondary awl pallet (5) is identical with the shape of vehicle steering;
Described bracing or strutting arrangement comprises the bracing frame (300) that the right-angled intersection bond is fixed that is that is fixed on cylinder type separation container top (100) and junction, pyramid type separation container bottom (200), one separation cone pillar (7) is installed in the vertical separation cone cushion cap (8) of fixing in the center of this bracing frame (300), the centre bore of described separation cone cushion cap (8); Described separation cone pillar (7) upper end penetrates the centre bore of secondary awl (4) and the discrete awl of one-level (3) successively, the vertical locating hole that is provided with of described separation cone pillar (7) is bored pallet (5) with secondary and the secondary awl (4) and the discrete awl of one-level (3) that are positioned on the secondary awl pallet (5) are fixed by the screw that penetrates locating hole; The cambered surface angle of the discrete awl of described one-level (3) is 45 °～65 °.
2. by the described coaxial biconic device in two stages for separating gas from solid rapidly of claim 1, it is characterized in that described separation container inlet (91) diameter is D, cylinder type separation container top (100) diameter of separation container is 5.4～6.5D, highly is 5.0～6.0D; In the nozzle upper diameter that contracts be D, lower diameter with highly be 0.6～0.8D.
3. by the described coaxial biconic device in two stages for separating gas from solid rapidly of claim 1, it is characterized in that the tapered lower end diameter that extends out baffle plate (1) of described cylindrical is 3～4D, highly is 2.2～2.4D.
4. by the described coaxial biconic device in two stages for separating gas from solid rapidly of claim 1, it is characterized in that the radius of curvature R of the discrete awl of described one-level (3) concave conical surface is 1.5D～2.5D.
5. by the described coaxial biconic device in two stages for separating gas from solid rapidly of claim 1, it is characterized in that, the upper base diameter of described secondary awl (4) is 2.0D～3.5D, the diameter of going to the bottom is 3.0～3.5D, high h is 0.5～0.65D, the vertical range of the discrete awl of upper bottom surface and one-level (3) bottom is 0～0.2D, the discrete awl of described one-level (3) bottom margin be projected on described secondary awl (4) upper base projecting edge and secondary awl (4) upward the horizontal range between the feather edge be 0.15～0.25D.
6. by the described coaxial biconic device in two stages for separating gas from solid rapidly of claim 1, it is characterized in that described secondary awl pallet (5) lower end fixedly mounts a ring baffle (6), the diameter of this ring baffle (6) is 3.0～3.5D, highly is 0.02～0.06D.
7. by the described coaxial biconic device in two stages for separating gas from solid rapidly of claim 1, it is characterized in that the diameter of described gas eduction tube (10) is 0.3～0.4D, is symmetrical distribution.
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| CN2032908U (en) * | 1988-01-01 | 1989-02-22 | 高信光 | Dual-layer fixed guide-vane dust catcher |
| CN2251414Y (en) * | 1995-04-18 | 1997-04-09 | 陶哲 | Boxing dummy toy |
| CN1267564A (en) * | 2000-04-07 | 2000-09-27 | 清华大学 | Wall-attached cutting type fast gas-solid separator |
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