CN208898804U - A kind of particle blanking mechanism and fall the net gas tower of stream - Google Patents

Abstract

The utility model discloses a kind of to fall the net gas tower of stream with particle blanking mechanism, particle blanking mechanism includes shaft and blanking assembly, blanking assembly includes the impeller and screen assemblies being successively threaded through in shaft from top to bottom, and impeller is fixed in shaft, and shaft can be rotated relative to screen assemblies；Impeller includes wheel hub and multiple dihedral vanes, multiple dihedral vanes are fixed on the circumferentially-spaced arrangement on the outer peripheral surface of wheel hub and along wheel hub, dihedral vane is relative to axes of rotation skew, the leading edge of the dihedral vane is more upper than rear along direction of rotation, and distance of the leading edge of multiple dihedral vanes apart from wheel hub upper surface is incremented by along direction of rotation.By above-mentioned special blade wheel structure, sufficiently the biological particles agglomerate on sieve can be pressed and dissipated, the biological particles that pressure adsorbs pollutant after dissipating can be fallen under the action of rotary force from the aperture on sieve, can avoid the blocking to cleaner.

Description

A kind of particle blanking mechanism and fall the net gas tower of stream

Technical field

The utility model relates to pyrolysis gas purification technology field more particularly to a kind of particle blanking mechanism and fall stream Net gas tower.

Background technique

Biomass, rubbish, the fuel gas generated in the pyrolytic gasifications such as industrial waste, band there are many polluting deleterious particle, Such as tar, dust multiple pollutant, and this pollutant has to pass through purified treatment before entering jet dynamic control, makes flammable Gas reaches the combustion gas standard of generator, provides a kind of new energy for power construction.

Pyrolytic gasification generates electricity in serial procedures, and the purification of combustion gas is its problem the most intractable, perplexs item always for many years Purpose development.Combustion gas is mainly added active carbon to carry out purified treatment by traditional handicraft by spray water tower.And this method is easy Secondary pollution is caused, a large amount of water pollution must be set up engineering of water treatment, and this method treatment cost is high, cannot eradicate soil The realistic problem of earth, water pollution.

In the 12th five-year-plan of China project, disclosed in 21 century new energy book series " biomass pyrogenation gasification philosophy and technique " Biologic grain tar adsorption is utilized, the scientific literature of dust also has small-sized biomass rubbish on the market, and industrial bio matter is useless Expect that pyrolytic gasification project operation, process route mainly design a filtering container in gas pipeline, fill life in container Composition granule, combustion gas pass through biological particles tar adsorption in container, dust, to achieve the purpose that purifying gas.This method master If simple process, input cost is lower, only builds for undersize item, is adsorbed using the biologic grain in simple process container burnt Oil powder dirt, biologic grain is static to be adsorbed in a reservoir, within a very short time will adsorption saturation, need by hand particle is replaced, It just must shut off gas pipeline due to more renewing particle and blowing out caused the series of problems such as to stop production, and after this simple filtration Combustion gas is also extremely difficult to standard value requirement.

Utility model content

The technical problems to be solved in the utility model is to overcome the deficiencies of the prior art and provide a kind of raising dedusting agent utilization Rate, the particle blanking mechanism for avoiding blocking.

In order to solve the above technical problems, the utility model uses following technical scheme:

A kind of particle blanking mechanism, including shaft and blanking assembly, blanking assembly include successively being threaded through to turn from top to bottom Impeller and screen assemblies on axis, the impeller are fixed in shaft, and the shaft can be rotated relative to screen assemblies；The impeller Including wheel hub and multiple dihedral vanes, multiple dihedral vanes are fixed on the circumferentially-spaced cloth on the outer peripheral surface of wheel hub and along wheel hub It sets, the dihedral vane is relative to axes of rotation skew, and the leading edge of the dihedral vane is more upper than rear along direction of rotation, along rotation Turn distance of the leading edge of multiple dihedral vanes on direction apart from wheel hub upper surface to be incremented by.

The utility model is by said mechanism, and the biological particles on screen assemblies are because of the coke in absorption pyrolysis gas Oil, the multiple pollutants matter such as dust is agglomerating when needing to change, starting driving mechanism drive shaft impeller rotation, the utility model Sufficiently agglomerate can be pressed and dissipated by above-mentioned special blade wheel structure by research and practical exploration discovery, pressure adsorbs pollution after dissipating The biological particles of object can be fallen under the action of rotary force from the aperture on sieve, can avoid blocking up cleaner Plug.In addition, biological particles are manually replaced without blow-on, thus efficiency of dust collection is higher, is easy to implement enlargement and the company of equipment Continuousization running.

As a further improvement of the above technical scheme:

The blanking assembly is equipped with multiple, length direction arranged for interval of multiple blanking assemblies along shaft.

Using above-mentioned preferred structure, biological particles pass through screen assemblies free-falling under the extruding of rotary blade, by In gravity, the biological particles that biological particles are more on blanking assembly more down and particle is small are in the majority, pyrolysis gas It is inputted from particle blanking mechanism lower end, pyrolysis gas rises flowing naturally, therefore bottom particle often tar adsorption, the dirts such as dust Contaminate that object is most, and more up the particle situation of getting dirty gradually decreases, due to, on blanking assembly more down biological particles more and The small dedusting agent of particle is in the majority, and specific surface area is bigger, and absorption pollutant is more, so that particle be made to be fully used, reduces The consumption of particle improves the utilization rate of biological particles.

In addition, due to special impeller, when replacing dedusting agent, without removing sieve, starting driving mechanism driving The rotation of shaft impeller, the pollution dedusting agent on each sieve can be beaten and be spread, finally fall, be convenient for from the hole on sieve Realize the serialization running of equipment.

The screen assemblies include annular ledge for fixing and the sieve that is fixed on annular ledge.

The inventive concept total as one, the utility model also provide one kind and fall the net gas tower of stream, including tower body, further include electricity Machine and above-mentioned particle blanking mechanism, the particle blanking mechanism are set in the cavity of tower body, and the motor is fixed on tower body The upper end of tower top, the shaft is pierced by and is connected to motor from the tower top of tower body.

Gas internal-combustion engine combustion gas Reinheitszahl is required it is very high, the utility model fall the net gas tower very good solution of stream this One problem, user can requirement according to internal combustion engine to combustion gas purity carry out the linkage of multitower multistage filtering.It is more to filter series, combustion gas Purity is higher, thus power generation values are also substantially improved, while accordingly substantially extending to unit service life.

When biologic grain tar adsorption, when dust reaches degree of saturation, starting motor rotation drives Multi-stage rotary impeller, will Pollution gradation sieve falls on furnace bottom, then is transported to outside burner hearth by conveying mechanism by particle is polluted.

As a further improvement of the above technical scheme:

The tower top of the tower body is equipped with charging mechanism, and the tower bottom of the tower body is equipped with shedding mechanism, the lower end of the tower body Air inlet is offered, the upper end of the tower body offers gas outlet.

The net gas tower of stream that falls further includes the air bell for being fixed on lower section at the top of tower body, and the bottom of the air bell is located at The lower section of port lower end.

To prevent biological particles from sucking escape pipe, the utility model increase air bell is to change air flow direction, specifically, Gas is raised to from lower to upper at the top of air bell, is flowed back after being obstructed, is crossed air bell bottom and be discharged again through gas outlet, driven by gas Biological particles up fall under airflow reflux pressure and gravity, thus avoid and be taken directly escape pipe.

The net gas tower of stream that falls further includes exporting the screw conveyor being connected below shedding mechanism and with shedding mechanism, It is transported to outside burner hearth convenient for the pollution particle in exporting shedding mechanism.

The tower body includes multiple towers being successively connected from top to bottom, and the inner sidewall of the tower lower end is equipped with inwardly The the first folding ear extended, the lateral wall of the tower upper end are equipped with the second folding ear to extend outwardly, and the annular ledge includes Annular inner race and annular outer ring, annular inner race and annular outer ring are connected by multiple gussets, and the annular inner race is pacified by bearing In shaft, the outer end of annular outer ring is stretched out outside the tower body and is tightly connected with the second folding ear of tower, annular outer ring The first folding ear of adjacent tower is tightly connected above inner end and the tower.By above structure, screen assemblies can be consolidated Ground is fixed on tower body, is not fallen out under the vibration of impeller.

The sieve is fixed in annular inner race and/or annular outer ring by fastener, and the sieve covers annular inner race Space between annular outer ring.

The gross area of aperture on the sieve is five times or more of air inlet cross-sectional area, fully ensures that pyrolysis gas energy Pass through tower body.

Biological particles, which pass through to fall, flow the charging mechanism of net gas top of tower and enters cylinder, across sieve under the extruding of impeller Free-falling, pyrolysis gas enter cylinder by bottom and rise from bottom to top, and tar therein, dust etc. can be inhaled by biological particles Attached, pyrolysis gas after absorbing and filter layer by layer by being fully purified；And biological particles tar adsorption, dust etc. reach saturation It after degree, is graded sieve and squeezes and fall on hopper, then be discharged through shedding mechanism.It is transported to through screw conveyor by particle is polluted after and It is pyrolyzed burner hearth combustion gasification.

Compared with the prior art, the advantages of the utility model are:

The utility model can carry out layering to pyrolysis gas to realize sufficiently cleaned up effect, also, biomass The problem of utilization rate of grain, there is no occluding devices, and it is easy to implement enlargement and serialization running.

Detailed description of the invention

Fig. 1 falls the positive structure diagram for flowing net gas tower for the utility model embodiment.

Fig. 2 falls the side structure schematic view for flowing net gas tower for the utility model embodiment.

Fig. 3 is enlarged drawing at the I of Fig. 1.

Fig. 4 is enlarged drawing at the II of Fig. 1.

Fig. 5 is the schematic perspective view for falling the impeller in the net gas tower of stream of the utility model embodiment.

Fig. 6 is the overlooking structure diagram for falling the support in the net gas tower of stream of the utility model embodiment.

Fig. 7 is the A-A cross-sectional view of Fig. 6.

Fig. 8 is the overlooking structure diagram for falling the sieve in the net gas tower of stream of the utility model embodiment.

Marginal data: 1, shaft；11, shaft coupling；2, impeller；21, wheel hub；22, dihedral vane；23, support ring；24, key； 3, screen assemblies；31, annular ledge；311, annular inner race；312, annular outer ring；313, gusset；314, bearing；315, transparent cover； 316, lip-type packing；32, sieve；321, sieve screen apertures；4, tower body；41, air inlet；42, gas outlet；43, tower；431, first Roll over ear；432, the second folding ear；433, manhole door；44, hopper；441, cleaning door；5, motor；6, charging mechanism；7, unloader Structure；8, air bell；9, screw conveyor.

Specific embodiment

The utility model is further described below in conjunction with specific preferred embodiment, but does not therefore limit this reality With novel protection scope.

Embodiment:

As depicted in figs. 1 and 2, falling for the present embodiment flows net gas tower, including tower body 4, motor 5 and particle blanking mechanism, Grain blanking mechanism is set in the cavity of tower body 4, and motor 5 is fixed on the tower top of tower body 4.

The tower top of tower body 4 is equipped with charging mechanism 6, and charging mechanism 6 is charging Blowing stopper；The tower bottom of tower body 4 is equipped with hopper 44, the outlet of hopper 44 is connected with shedding mechanism 7, and shedding mechanism 7 is discharging Blowing stopper, is equipped with spiral below shedding mechanism 7 Conveyer 9, the screw conveyor 9 are connected with the outlet of shedding mechanism 7, and the lower end of tower body 4 offers air inlet 41, tower body 4 Upper end offers gas outlet 42.

The particle blanking mechanism includes shaft 1 and the spaced apart blanking assembly of multiple length directions along shaft 1, blanking Assembly includes the impeller 2 and screen assemblies 3 being successively threaded through in shaft 1 from top to bottom, and impeller 2 is fixed in shaft 1, shaft 1 It can be rotated relative to screen assemblies 3, the upper end of shaft 1 is pierced by from the tower top of tower body 4 and passes through shaft coupling 11 and connect with motor 5.

When tower body is excessively high, multistage axis can be taken to form shaft 1 by the connection of shaft coupling 11, spline can be used in shaft coupling 11 One of various ways such as shaft coupling, positive coupling, Hooks coupling universal coupling.

As shown in figure 5, impeller 2 include wheel hub 21, multiple dihedral vanes 22 and support ring 23, the one of multiple dihedral vanes 22 The circumferentially-spaced arrangement on the outer peripheral surface of wheel hub 21 and along wheel hub 21 is fixed at end, and the other end of multiple dihedral vanes 22 is then fixed In in support ring 23.Dihedral vane 22 is tilted relative to shaft 1, tilts leaf in direction of rotation (shown in the arrow direction of Fig. 5) The leading edge of piece 22 is more upper than rear, distance of the leading edge of multiple dihedral vanes 22 apart from 21 upper surface of wheel hub along direction of rotation It is incremented by.As shown in figure 3, wheel hub 21 is fixed in shaft 1 by key 24, thus impeller 2 can be rotated with shaft 1.

Tower body 4 includes multiple towers 43 being successively connected from top to bottom, as shown in figure 4, on the inner sidewall of 43 lower end of tower Equipped with the first folding ear 431 extended inwardly, the lateral wall of 43 upper end of tower is equipped with the second folding ear 432 to extend outwardly.

Screen assemblies 3 include the annular ledge 31 being fixed on tower body and the sieve 32 being fixed on annular ledge 31.Such as Shown in Fig. 6 and 7, annular ledge 31 includes annular inner race 311 and annular outer ring 312, and annular inner race 311 and annular outer ring 312 are logical Multiple gussets 313 are crossed to be connected, as shown in figure 3, annular inner race 311 is mounted in shaft 1 by bearing 314, annular outer ring 312 Outer end is stretched out outside tower body 4 and is tightly connected with the second folding ear 432 of tower 43,43 top of inner end and tower of annular outer ring 312 First folding ear 431 of adjacent tower 43 is tightly connected.

The centre bore of annular inner race 311 has two-stage step, and bearing 314 is installed in the centre bore, and bottom surface is located at ring On the step surface of 311 lower end of shape inner ring, and positioned by the shaft shoulder of shaft 1.The top of bearing 314 is sealed by transparent cover 315, transparent cover 315 is fixed by fastener and annular inner race 311.It is all provided between transparent cover 315 and shaft 1, between annular inner race 311 and shaft 1 There is lip-type packing 316.

As shown in figure 4, sieve 32 is fixed on annular outer ring 312 by hex head screw, sieve 32 uses stainless steel Matter, sieve 32 cover the space between annular inner race 311 and annular outer ring 312.

In the present embodiment, as shown in figure 8, the gross area of the sieve screen apertures 321 on sieve 32 is 41 cross-sectional area of air inlet Five times or more.

As shown in Figure 1,4 top lower section of tower body is fixed with air bell 8, the bottom of air bell 8 is located at 42 lower end of gas outlet Lower section.Gas is raised to from lower to upper at the top of air bell, is flowed back after being obstructed, is crossed air bell bottom and be discharged again through gas outlet, by gas Body drives biological particles up, falls under airflow reflux pressure and gravity, so as to avoid being taken directly out Tracheae.

The utility model falls the net gas tower dust removal process of stream are as follows:

Biological particles, which pass through to fall, flow the charging Blowing stopper of net gas top of tower and enters in tower body 4, when motor 5 is run, deceleration After machine slows down, the impeller 2 in shaft 1 is rotated clockwise, and the dihedral vane 22 on impeller 2 drives biological particles, and forces Biological particles pass through sieve 32 and descend slowly and lightly to lower layer.

Pyrolysis gas enters the biomass for falling and flowing in net gas tower tower bottom layer and upward ascension, with each sieve 32 by air inlet 41 Particle contacts, and the tar in pyrolysis gas, dust etc. is attracted to biological particles surface.By absorbing and filter layer by layer, it is pyrolyzed Gas by top port is discharged into next procedure after being fully purified.When the pollution of biological particles reaches a certain level When, starting impeller 2 rotates clockwise, and pollution particle is discharged in hopper 44, is discharged to spiral shell by the discharging Blowing stopper of lower end Conveyer 9 is revolved, circulating combustion in pyrolysis oven is then re-fed into.Sight glass lens are housed on the manhole door 433 of every layer of tower 43, Particle height and other situations in each tower 43 of observable；Hopper 44 is equipped with cleaning door 441, can beat when meeting card resistance situation Opening or cleaning reason and maintenance.

The biological particles such as husk, sawdust, broken corncob can be used in biological particles.

To sum up, one kind of the invention falls the net gas tower of stream, and be made of following five parts: driving-shaft assembly, impeller support are total At, air bell, net gas tower body, lower hopper.

Driving-shaft assembly is connected by motor, retarder, shaft coupling, shaft composition, motor with retarder, and transmission shaft is logical It crosses shaft coupling to connect with reduction gearbox, forms a transmission mechanism, particle replacement is realized in the rotation of shaft impeller.

Impeller branch seat assembly is fixed by rotary blade, bracing ring, stainless steel mesh composition, rotary blade stainless steel mesh Above bracing ring, stainless steel mesh carries biologic grain, and rotating impeller blades design has a relatively small tilt angle, impeller be when rotating with Blade acute angle reversely rotates, and when impeller rotates, biological particles are under the effect of blade tilt friction pressure, and biologic grain is from sieve In drop to lower layer.It is well known that tar is a kind of stronger substance of viscosity, tar dust particles be easy it is hardened block sieve, Above-mentioned design solves sieve blockage problem, and removes screen surface tar in time in sieve fricting movement using particle.

It falls the net gas tower tower body of stream and is equipped with peep-hole and blowing mouth, and be composed of multiple cylinders.

It is one of the necessary condition for realizing multistage filtering using tower design, according to can be with to the difference of combustion gas purity requirement Multitower multistage-combination, can also reduce combination, and it is the principle that will not change that combustion gas, which filters series more multiple-effect fruit is better,.

Air bell be arranged in the cylinder of tower body upper layer, due to present invention process gas trend be flow from bottom to top, and Gas outlet tube mouth is located on the upside of the cylinder of upper layer, and biomass feed opening is located on top plate, the microparticle when biologic grain is flowed to whereabouts It is easy sucking gas outlet tube road, second, since flow velocity is very fast, driving particle on sieve when combustion gas passes through upper layer biologic grain layer Raise up, be easy it is pleasant flow into gas outlet tube road, the present invention changes air flow direction using air bell, when air-flow springs up chance upwards Resistance reflux downwards, causes negative pressure to biologic grain layer, microparticle is made no longer to raise up, very good solution microparticle sucks efferent duct The problem of road, so that combustion gas purity be made to be protected.

Lower hopper is by cone bucket, and unloading rotary feeder composition, cone bucket is equipped with peep-hole and air inlet mouth of pipe, due to present invention process The net gas of the filtering of combustion gas is flow process design from bottom to top, and tower bottom layer biologic grain tar adsorption dust is easily saturated, therefore work Skill most will easily be saturated and pollute particle and exclude first, and then particle successively makes particle multi-panel tar adsorption powder to whereabouts stream from upper layer Dirt, then through helical feed to burner hearth processing, technical process abandoned completely traditional handicraft idle discharge is put by smokestack it is original Reason method, protects environment, has saved the energy.

Compared with prior art, the invention has the advantages that:

The net gas tower of stream is fallen using the net gas method of tower structure multistage filtering, automatic blanking, the biology of automatic replacement pollution Grain, and screen layer tar dust is removed automatically, combustion gas carries out from bottom to top, and the design that biologic grain is wandered from top to bottom is raw The absorption of composition granule multi-panel, it is multi-level to utilize, to save particle consumption, obtain combustion gas purity using air bell design of new processes Stronger protection.

The present invention falls the net gas tower technology of stream and shows to overcome original skill completely by stating and being compared with the prior art above Art is insufficient, utilizes the pollution source of biological particles tar adsorption radical cure water spray method.Tar adsorption dust particles melt down Treatment process makes dust flue gas no longer to airborne release, protect environment, be greatly reduced cost of project implementation and project operation at This.It falls and flows the implementation of net gas tower items technology and will terminate biomass garbage, the gasification of industrial bio hot resolution of waste material can only give birth on a small scale The history of production provides technical support for medium-and-large-sized pyrolytic gasification project construction.

The above is only the preferred embodiment of the application, not does any type of limitation to the application, although this Shen Please disclosed as above with preferred embodiment, however not to limit the application, any person skilled in the art is not taking off In the range of technical scheme, a little variation or modification are made using the technology contents of the disclosure above and is equal to Case study on implementation is imitated, is belonged in technical proposal scope.

Claims (10)

1. a kind of particle blanking mechanism, which is characterized in that including shaft (1) and blanking assembly, blanking assembly includes from top to bottom The impeller (2) and screen assemblies (3) being successively threaded through on shaft (1), the impeller (2) are fixed on shaft (1), the shaft (1) it can be rotated relative to screen assemblies (3)；The impeller (2) includes wheel hub (21) and multiple dihedral vanes (22), multiple inclination leaves Piece (22) is fixed on the outer peripheral surface of wheel hub (21) and along the circumferentially-spaced arrangement of wheel hub (21), and the dihedral vane (22) is opposite It is tilted in shaft (1), the leading edge of the dihedral vane (22) is more upper than rear along direction of rotation, multiple along direction of rotation Distance of the leading edge of dihedral vane (22) apart from wheel hub (21) upper surface is incremented by.

2. particle blanking mechanism according to claim 1, which is characterized in that the blanking assembly is equipped with multiple, Duo Geluo Expect assembly along the length direction arranged for interval of shaft (1).

3. particle blanking mechanism according to claim 1 or 2, which is characterized in that the screen assemblies (3) include for solid Fixed annular ledge (31) and the sieve (32) being fixed on annular ledge (31).

4. one kind falls the net gas tower of stream, including tower body (4), which is characterized in that further include that motor (5) and such as claims 1 to 3 are any Particle blanking mechanism described in, the particle blanking mechanism are set in the cavity of tower body (4), and the motor (5) is fixed on tower The upper end of the tower top of body (4), the shaft (1) is pierced by from the tower top of tower body (4) and connect with motor (5).

5. according to claim 4 fall the net gas tower of stream, which is characterized in that the tower top of the tower body (4) is equipped with charging mechanism (6), the tower bottom of the tower body (4) is equipped with shedding mechanism (7), and the lower end of the tower body (4) offers air inlet (41), the tower The upper end of body (4) offers gas outlet (42).

6. according to claim 5 fall the net gas tower of stream, which is characterized in that further include being fixed on lower section at the top of tower body (4) The bottom of air bell (8), the air bell (8) is located at the lower section of gas outlet (42) lower end.

7. according to claim 5 fall the net gas tower of stream, which is characterized in that further include be set to below shedding mechanism (7) and with The connected screw conveyor (9) in shedding mechanism (7) outlet.

8. falling the net gas tower of stream according to claim 4~7 is described in any item, which is characterized in that the tower body (4) include it is multiple from The tower (43) successively connected under, the inner sidewall of tower (43) lower end are equipped with the first folding ear extended inwardly (431), the lateral wall of tower (43) upper end is equipped with the second folding ear (432) to extend outwardly, screen assemblies (3) packet The sieve (32) for including annular ledge for fixing (31) and being fixed on annular ledge (31), the annular ledge (31) include Annular inner race (311) and annular outer ring (312), annular inner race (311) and annular outer ring (312) pass through multiple gussets (313) phase Even, the annular inner race (311) is mounted on shaft (1) by bearing (314), described in the outer end stretching of annular outer ring (312) Tower body (4) is tightly connected outside and with the second folding ear (432) of tower (43), the inner end of annular outer ring (312) and the tower (43) the first folding ear (431) of the adjacent tower (43) in top is tightly connected.

9. according to claim 8 fall the net gas tower of stream, which is characterized in that the sieve (32) is fixed on ring by fastener On shape inner ring (311) and/or annular outer ring (312), sieve (32) covering annular inner race (311) and annular outer ring (312) Between space.

10. falling the net gas tower of stream according to claim 4~7 is described in any item, which is characterized in that the sieve on the sieve (32) The gross area in hole (321) is the three times of air inlet (41) cross-sectional area or more.