CN106833699B - Straw carbonizing device with oxygen separation and dust removal functions - Google Patents
Straw carbonizing device with oxygen separation and dust removal functions Download PDFInfo
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- CN106833699B CN106833699B CN201710220899.1A CN201710220899A CN106833699B CN 106833699 B CN106833699 B CN 106833699B CN 201710220899 A CN201710220899 A CN 201710220899A CN 106833699 B CN106833699 B CN 106833699B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/02—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
- C10B47/28—Other processes
- C10B47/32—Other processes in ovens with mechanical conveying means
- C10B47/40—Other processes in ovens with mechanical conveying means with endless conveying devices
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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Abstract
The invention discloses an oxygen-isolating and dust-removing straw carbonization device, which comprises a feeding bin, a straw conveying device, a pyrolysis furnace, an oxygen-isolating device and a dust blocking device, wherein the oxygen-isolating device comprises an oxygen-isolating bin, an oxygen-isolating bin feeding hole and an oxygen-isolating bin discharging hole are oppositely arranged on the oxygen-isolating bin, the oxygen-isolating bin feeding hole is connected with the straw conveying device, and the oxygen-isolating bin discharging hole is connected with the feeding bin; a power shaft is axially arranged at the center in the oxygen isolation chamber, four rotating blades are arranged on the power shaft, and two adjacent rotating blades are vertical to each other; the dust blocking device comprises a filter plate and an arc-shaped pressing plate, wherein one end of the filter plate is mutually butted with one end part of the arc-shaped partition plate; the filter plate is hinged with the other end of the arc-shaped partition plate respectively through the feeding bin, the hinged points are positioned on two sides of the outlet of the mixed gas collecting port, and the straw enters the decomposing furnace to meet the requirements of an oxygen deficiency process; the density of the straw is utilized to isolate a large amount of dust, and a dust source head is blocked in the decomposing furnace, so that the dust content in the combustible gas is reduced.
Description
Technical Field
The invention relates to a straw carbonization device, in particular to an oxygen-isolating and dust-removing straw carbonization device.
Background
A large amount of straws are produced in agricultural production, and the traditional straws are mainly treated by adopting an incineration mode, so that air is polluted, and effective benefits cannot be obtained. The straw carbonization is an effective application, and is widely popularized at present, and is a process of drying or airing and crushing straws, and then drying, dry distilling, cooling and the like in carbonizing equipment to prepare loose straws into charcoal. In the straw carbonization process, the straws are conveyed to the conveying device through the feeding device and then conveyed to the air drying device through the conveying device, the air-dried straw bundles need to be pushed into the carbonization furnace through the propelling device, and the air of the straw bundles needs to be removed before the straw bundles enter the carbonization furnace, so that oxygen is separated from the straws in the feeding process, a large amount of oxygen is prevented from entering the propelling device, and the carbonization efficiency is reduced.
A large amount of mixed gas is generated after the straws are carbonized (cracked), and the mixed gas generated from the carbonization furnace contains a large amount of dust, so that the dust in the mixed gas needs to be filtered. The existing dust filtration adopts a dust filter core to carry out post-treatment by adopting special equipment, namely the filter core for filtering various dusts, but different working conditions select different forms of filter cores and different dusts, the filter core made of different materials is selected, the cost is higher, and the collected dust needs to be treated. Meanwhile, straws are generally fed into the decomposing furnace through a straw feeding device in an anaerobic process in the decomposing furnace, the straws are directly fed into the thermal decomposing furnace by utilizing a conveyor belt (chain bed) in a feeding bin in the conventional feeding mode, two layers of large spaces are formed at the upper part and the lower part of the conveyor belt and are communicated with each other, the upper layer space is used for conveying the straws to meet the technological requirements, and the lower layer space enables combustible gas generated in the thermal decomposing furnace to flow back, so that the lower layer space forms a path, the conveyor belt (namely the chain bed) is in a high-temperature state for a long time, the service cycle of the conveyor belt is shortened, and the decomposition of the straws is influenced (part of fresh straws are combusted in the feeding bin and are changed into ashes).
There is chinese patent No. 201510912707.4 in this respect, 2016.3.2 discloses a self sealss living beings retort feed arrangement, including pushing away the material subassembly, the feeder hopper, the charge-in pipeline, sealed pipeline, it includes pushing away the pushing away actuating mechanism of stub bar and drive pushing away stub bar action to push away the material subassembly, feeder hopper and charge-in pipeline intercommunication, it is used for the propelling movement material that the stub bar stretches into charge-in pipeline one end to push away the stub bar, the charge-in pipeline other end and sealed pipeline form sealing connection, charge-in pipeline and horizontal plane have the contained angle, be equipped with the spiral feed rod in the feeder hopper, the spiral feed rod is connected with pay-off actuating mechanism. The material pushing assembly of the patent can enable materials or foreign matters to enter the sealed pipeline under the action of gravity, prevents the materials or the foreign matters from being clamped in a gap between the material pushing head and the feeding pipeline, reduces resistance or impact force of the material pushing head, guarantees smoothness of biomass feeding, but brings a large amount of oxygen into the decomposing furnace, enables the ash content of a large amount of straws to be increased in the carbonization process, and influences the quality of carbon powder.
Chinese patent No. 201520951196.2, in 2016.6.1, discloses a continuous purification treatment system for flue gas from a roasting furnace, which is used to solve the technical problem that the flue gas generated during roasting of the rare earth phosphor waste at present is directly discharged to pollute the environment, and comprises a roasting furnace with a flue gas discharge pipe; the device also comprises a dust absorption tower for absorbing the dust in the flue gas and a water spraying tower for absorbing acid or alkaline elements in the flue gas; the smoke inlet of the dust absorption tower is correspondingly communicated with the smoke discharge pipe, and the smoke outlet of the dust absorption tower is correspondingly communicated with the air inlet of the water spraying tower; the dust absorption tower comprises a tower body and at least three dust cleaning openings arranged on the tower body from top to bottom; the tower body is also internally provided with dust filter screens with the same number as the dust cleaning openings; each dust filter screen is arranged at one of the dust cleaning openings respectively, and each dust filter screen is transversely arranged in the middle of the dust cleaning opening; each dust cleaning port is sealed by a cover plate; the smoke inlet is arranged on the tower wall below the dust filter screen at the lowest part; the dust treatment also adopts a special device, namely a dust absorption tower and a water spraying tower.
Chinese patent No. 201510912707.4, 2016.3.2 discloses a self sealss living beings retort feed arrangement, including pushing away the material subassembly, the feeder hopper, charge-in pipeline, sealed pipeline, it includes the material pushing drive mechanism that pushes away stub bar and drive push away stub bar action to push away the material subassembly, feeder hopper and charge-in pipeline intercommunication, it is used for the propelling movement material that the feed-in pipeline one end is stretched into to push away the stub bar, the charge-in pipeline other end forms sealing connection with sealed pipeline, charge-in pipeline has the contained angle with the horizontal plane, be equipped with the spiral pay-off pole in the feeder hopper, the spiral pay-off pole is connected with pay-off actuating mechanism. The material pushing assembly of the patent can enable materials or foreign matters to enter the sealed pipeline under the action of gravity, prevents the materials from being clamped in the gap between the material pushing head and the feeding pipeline, reduces the resistance or impact force of the material pushing head, guarantees the smoothness of biomass feeding, but brings a large amount of oxygen into the decomposing furnace, enables a large amount of straws to be large ashes in the carbonization process, and cannot form carbon powder.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the straw carbonization device for isolating oxygen and removing dust, and the straw carbonization device meets the requirements of an oxygen-deficient process when entering a decomposing furnace; the dust separation device is arranged at the gas collection port of the mixed gas, the density of the straw is used for separating a large amount of dust, the dust source head is blocked in the decomposing furnace, and the dust content in the combustible gas is reduced.
In order to solve the technical problems, the invention adopts the technical scheme that:
the utility model provides a separate straw carbomorphism device of oxygen dust removal, includes feeding storehouse, straw conveyer and pyrolysis oven, be equipped with the mist on the feeding storehouse and gather the mouth, be equipped with straw conveying chain bed, its characterized in that in the feeding storehouse: the straw conveying device comprises a straw conveying device, a straw conveying device and an oxygen separation device, wherein the straw conveying device is arranged on the straw conveying device, and the straw conveying device is connected with the straw conveying device; a power shaft is axially arranged at the center in the oxygen isolation chamber, four rotating blades are arranged on the power shaft, and two adjacent rotating blades are vertical to each other;
the dust blocking device comprises a filter plate and an arc-shaped pressing plate, the filter plate and the arc-shaped pressing plate are positioned in the feeding bin, and one end of the filter plate is in butt joint with one end of the arc-shaped pressing plate; the filter plate is hinged with the other end of the arc-shaped pressing plate through the feeding bin, the hinged points of the filter plate and the arc-shaped pressing plate are positioned on two sides of the outlet of the mixed gas collecting port, and the filter plate and the arc-shaped pressing plate are inverted in the feeding bin.
The aperture of the oxygen separation bin feed inlet and the aperture of the oxygen separation bin discharge outlet are less than or equal to one fourth of the circumference of the oxygen separation bin.
The filter plate is formed by connecting a plurality of filter tube rows; the mass of the arc-shaped pressing plate is larger than the weight of the filter plate.
The arc-shaped pressing plate is provided with a sliding groove, the feeding bin is provided with a pin shaft, the pin shaft is clamped into the sliding groove, and when the filtering plate rotates, the arc-shaped pressing plate slides up and down along the sliding groove.
The straw conveying chain bed is characterized in that the chains of the straw conveying chain bed are provided with the spacers at intervals, the spacers on each chain are transversely arranged, and partitions for conveying straws are formed among the transversely arranged spacers. The transverse arrangement of the partition columns on each chain can be regarded as forming a partition plate, and a partition for conveying straws is formed between every two adjacent partition plates.
The device also comprises a cooling bin; the straw conveying chain bed divides the feeding bin into an upper space and a lower space, the space at the upper part of the straw conveying chain bed is an upper space, and the space at the lower part of the straw conveying chain bed is a lower space; the cooling bin is arranged in the lower layer space, a plurality of grooves are formed in the outer side of the cooling bin in a concave mode, and a cooling medium channel is formed in the cooling bin; when the straw conveying chain bed rotates, the partition columns pass through the grooves.
And the cooling bin is respectively provided with a cooling medium inlet pipe and a cooling medium outlet pipe, and the cooling medium inlet pipe and the cooling medium outlet pipe are respectively communicated with the cooling medium channel.
The cooling medium inlet pipe is connected with a cooling medium supply device, and the cooling medium supply device is a water pump for supplying cooling water.
The cooling medium inlet pipe is connected with a cooling medium supply device, and the cooling medium supply device is a fan.
The width of the groove is larger than that of the partition column, and the depth of the groove is larger than that of the partition column.
The invention has the following advantages:
1. the device comprises an oxygen isolation device and a dust blocking device, wherein the oxygen isolation device comprises an oxygen isolation chamber which is cylindrical, an oxygen isolation chamber feed inlet and an oxygen isolation chamber discharge outlet are oppositely arranged on the oxygen isolation chamber, the oxygen isolation chamber feed inlet is connected with a straw conveying device, and the oxygen isolation chamber discharge outlet is connected with a feed chamber; a power shaft is axially arranged at the center in the oxygen isolation chamber, four rotating blades are arranged on the power shaft, and two adjacent rotating blades are vertical to each other; this separate oxygen device separation the lug connection in straw conveyer and feeding storehouse, the straw falls into in the contained angle space of rotating vane and rotating vane from straw conveyer, rotating vane rotates the enclosure space who gets into separate oxygen storehouse, thereby prevent that straw conveyer from bringing fast flowing air (being oxygen) into along with the material, reach the effect that separates oxygen, the straw falls into the feeding storehouse through separating oxygen storehouse discharge gate and inputs the pyrolysis oven again, it is the requirement that accords with oxygen deficiency or anaerobism to make the straw carbomorphism, rotating vane continues the rotation to the separate oxygen storehouse of return stroke, prepare next feeding link, so circulation, thereby reach the technological requirement that separates oxygen in succession.
The dust blocking device comprises a filter plate and an arc-shaped pressing plate, the filter plate and the arc-shaped pressing plate are positioned in the feeding bin, and one end of the filter plate is in butt joint with one end of the arc-shaped pressing plate; the filter plate is hinged with the other end of the arc-shaped pressing plate through the feeding bin, the hinged points of the filter plate and the arc-shaped pressing plate are positioned on two sides of the outlet of the mixed gas collecting port, and the filter plate and the arc-shaped pressing plate are inverted in the feeding bin. Because the arc clamp plate has the dead weight, its articulated filter is in the minimum of below all the time, biomass material (straw) constantly sends into the feeding storehouse through the feed inlet, the flow force of accompanying the straw, the straw is when the filter passes through, the filter floats about how much along with the straw volume, give the certain pressure of straw, make the straw that passes through the filter below become closely knit (dust in the close-knit straw easily filters the mist), the mist that thermal decomposition stove produced simultaneously passes through the close-knit straw with wherein dust filtration back again the filter plate spill over, discharge and collect through the mist collection mouth at last. In the process, the arc-shaped pressing plate blocks the mixed gas, the mixed gas is forced to overflow from the filtering plate only through the compact straws, the purpose of removing a large amount of dust in the mixed gas is achieved, the filtered dust is brought into the decomposing furnace by the fresh straws, and cleaning is not needed.
2. The aperture of the oxygen separation chamber feed port and the aperture of the oxygen separation chamber discharge port are less than or equal to one fourth of the circumference of the oxygen separation chamber, and because two adjacent rotating blades are mutually vertical, four rotating blades on a power shaft are always in a sealed state in the rotating process under the driving of power, so that the oxygen separation effect is effectively achieved.
3. The filter plate is formed by connecting a plurality of filter tube rows; the mass of the arc-shaped pressing plate is greater than the weight of the filter plate; the arc-shaped pressing plate is provided with a sliding groove, the feeding bin is provided with a pin shaft, the pin shaft is clamped into the sliding groove, and when the filtering plate rotates, the arc-shaped pressing plate slides up and down along the sliding groove. The dust is filtered through the filter tube row through the straw of closely knit, and the filter effect is better. When the filter rotates, the arc-shaped pressing plate slides up and down along the sliding groove, when the straw passes through the filter, the filter floats up and down along with the straw amount, the filter rotates to enable the straw to slide up and down along the sliding groove, and therefore floating of the straw is realized.
4. According to the straw conveying chain bed, the chains are provided with the spacers at intervals, the spacers on each chain are transversely arranged, and the spacers transversely arranged form partitions for conveying straws; the transverse arrangement of the partition columns on each chain can be regarded as forming a partition plate, and a partition for conveying straws is formed between every two adjacent partition plates. The purpose is to prevent the occurrence of slipping between partial light straws and a conveying net, so that the straws after oxygen separation cannot be smoothly conveyed to a pyrolysis furnace through a conveying chain bed, and the straws after oxygen separation are easily conveyed to the pyrolysis furnace.
5. The cooling bin is arranged in the lower layer space, so that the defects in the prior art can be overcome, the groove is arranged on the outer side of the cooling bin, when the conveying belt rotates for feeding, the partition column passes through the groove, and the cooling bin is internally provided with a cooling medium channel which is communicated with a cooling medium such as water or cold air. Therefore, the temperature of the high-temperature conveying belt and the partition plates on the high-temperature conveying belt is reduced when the high-temperature conveying belt passes through the grooves, the service life of the conveying belt is prolonged, and newly fed straws are prevented from being burnt; the cooling bin almost occupies the lower layer space, blocks the return space of the combustible gas, so that the return space cannot form a loop, and blocks the backflow of the combustible gas, so that the combustible gas can run according to the line required by the established process. Prevent that the mixed combustible gas from backflowing and forming the return circuit, reduce the temperature in the feeding storehouse, improve the life cycle of the conveyer belt in the feeding storehouse.
6. The width of the groove is larger than that of the partition column, and the depth of the groove is larger than that of the partition column, so that the partition board or the partition column can smoothly pass through the groove conveniently.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a view taken along line A-A of FIG. 1;
fig. 3 is a partially enlarged view of a frame B in fig. 1.
The labels in the figure are: 1. the device comprises a feeding bin, 1.1, an upper layer space, 1.2, a lower layer space, 1.3, a mixed gas collecting port, 2, a straw conveying device, 3, a pyrolysis furnace, 4, a straw conveying chain bed, 4.1, a chain, 5, a partition plate, 5.1, a partition column, 6, an oxygen separation bin, 6.1, an oxygen separation bin feeding port, 6.2, an oxygen separation bin discharging port, 6.3 rotating blades, 7, a cooling bin, 7.1, a groove, 7.2, a cooling medium channel, 8, a filter plate, 9, an arc-shaped pressing plate, 9.1, a sliding groove, 9.2, a pin shaft, 10, a cooling medium outlet pipe, 11, a cooling medium supplying device, 12 and a cooling medium inlet pipe.
Detailed Description
The invention is further described with reference to the accompanying drawings in which:
the invention is applied to the biomass carbonization process.
Example 1
As shown in figure 1, figure 2 and figure 3, a straw carbomorphism device that separates oxygen and remove dust, including feeding storehouse 1, straw conveyer 2 and pyrolysis oven 3, be equipped with mist collection mouth 1.3 on the feeding storehouse 1, be equipped with straw conveying chain bed 4 in the feeding storehouse 1, the straw is in the feeding storehouse 1 through the input of straw conveyer 2, the straw conveying chain bed 4 of feeding storehouse 1 will fall into the straw send into the pyrolysis oven 3 in to the straw carbomorphism, the mixed combustible gas that the straw carbomorphism produced gathers mouthful 1.3 through the mist on the feeding storehouse 1 and collects. In the prior art, when the straws enter the feeding bin 1 through the straw conveying device 2, a large amount of air (namely oxygen) can be brought in, the straws containing a large amount of air cannot meet the requirements of the process when carbonized in the pyrolysis furnace, meanwhile, because the mixed combustible gas generated by straw carbonization contains a large amount of dust, the dust is large in amount, the filtering is difficult, and certain difficulty is also caused in dust collection.
Therefore, the straw carbonization device is provided with an oxygen separation device and a dust blocking device.
The oxygen separation device is arranged between the straw conveying device 2 and the feeding bin 1 and comprises an oxygen separation bin 6, the oxygen separation bin 6 is cylindrical, an oxygen separation bin feeding port 6.1 and an oxygen separation bin discharging port 6.2 (shown in figure 1) are oppositely arranged on the oxygen separation bin 6, the oxygen separation bin feeding port 6.1 is connected with a discharging port of the straw conveying device 2, and the oxygen separation bin discharging port 6.2 is connected with a feeding port of the feeding bin 1; a power shaft (namely a rotating shaft) is axially arranged at the center in the oxygen isolation chamber 6, four rotating blades 6.3 are arranged on the power shaft, and 6.3 adjacent rotating blades are mutually vertical (namely in a cross shape); straw falls into the contained angle space of rotating vane and rotating vane from straw conveyer, rotating vane rotates the enclosure space that gets into at a distance from the oxygen storehouse, at a distance from the oxygen device the lug connection of straw conveyer with the feeding storehouse, thereby prevent that straw conveyer from bringing fast flowing air (being oxygen) into along with the material, reach the effect at a distance from the oxygen, the straw falls into the feeding storehouse through at a distance from the oxygen storehouse discharge gate and inputs the pyrolysis oven again, make the straw carbomorphism accord with the requirement of oxygen deficiency or anaerobism, rotating vane continues to rotate to the oxygen storehouse at a return stroke, prepare next feeding link, so circulate, thereby reach the technological requirement at a distance from the oxygen in succession.
The calibers of the oxygen isolation bin feed inlet 6.1 and the oxygen isolation bin discharge outlet 6.2 are less than or equal to one fourth of the circumference of the oxygen isolation bin 1, and the symmetrical rotating blades 6.3 are always in a sealing state in the rotating process of the four rotating blades 6.3, so that the straw conveying device 2 is prevented from being communicated with the feed bin 1, and the purpose of oxygen isolation is achieved.
The dust blocking device comprises a filter plate 8 and an arc-shaped pressing plate 9, the filter plate 8 and the arc-shaped pressing plate 9 are positioned in the feeding bin 1, and one end of the filter plate 8 is mutually butted with one end part of the arc-shaped pressing plate 9; the other end of the filter plate 8 and the other end of the arc-shaped pressing plate 9 are respectively hinged with the feeding bin, the hinged points of the filter plate 8 and the arc-shaped pressing plate 9 are positioned at two sides of the outlet of the mixed gas collecting port, and the filter plate 8 and the arc-shaped pressing plate 9 are inverted in the feeding bin 1. Because arc clamp plate 9 has the dead weight, its articulated filter 8 is in the minimum of below all the time, biomass material (straw) constantly sends into the feeding storehouse through the feed inlet, the flow power of accompanying the straw, the straw is when filter 8 passes through, the filter floats about how much along with the straw volume, give the certain pressure of straw, make the straw that passes through the filter below become closely knit (dust in the close-knit straw easily filters the mist), the mist that thermal decomposition stove produced simultaneously filters wherein dust through close-knit straw and then overflows, discharge and collect the filter plate through mist collection mouth at last. In the process, the arc-shaped pressing plate blocks the mixed gas, the mixed gas is forced to overflow from the filtering plate only through the compact straws, the purpose of removing a large amount of dust in the mixed gas is achieved, the filtered dust is brought into the decomposing furnace by the fresh straws, and cleaning is not needed.
The filter plate 8 is formed by connecting a plurality of filter tube rows; the mass of the arc-shaped pressing plate 9 is larger than the weight of the filter plate 8.
The arc-shaped pressing plate 9 is provided with a chute 9.1, the feeding bin 1 is provided with a pin shaft 9.2, the pin shaft 9.2 is clamped in the chute 9.1, and when the filtering plate rotates 8, the arc-shaped partition 9 slides up and down along the chute 9.1, so that floating pressing is performed on the arc-shaped partition according to the excess of straws, and dust in the compacted mixed combustible gas is effectively filtered.
The straw conveying chain bed 4 is a conveying belt consisting of a plurality of chains, the every chain is provided with the separating columns 5.1 at intervals, the separating columns 5.1 on the every chain are transversely arranged, and partitions for conveying straws are formed between the transversely arranged separating columns 5.1, in other words, the separating columns 5.1 on the chains are transversely arranged to form partition plates, and partitions are formed between adjacent partition plates. The purpose is to prevent the slipping phenomenon between the partially light straws and the conveying net, so that the straws after oxygen separation cannot be smoothly conveyed into the pyrolysis furnace through the conveying chain bed, and the straws after oxygen separation are easily conveyed into the pyrolysis furnace (as shown in figure 2).
Example 2
As shown in figure 1, figure 2 and figure 3, a straw carbomorphism device that separates oxygen and remove dust, including feeding storehouse 1, straw conveyer 2 and pyrolysis oven 3, be equipped with mist collection mouth 1.3 on the feeding storehouse 1, be equipped with straw conveying chain bed 4 in the feeding storehouse 1, the straw is in the feeding storehouse 1 through the input of straw conveyer 2, the straw conveying chain bed 4 of feeding storehouse 1 will fall into the straw send into the pyrolysis oven 3 in to the straw carbomorphism, the mixed combustible gas that the straw carbomorphism produced gathers mouthful 1.3 through the mist on the feeding storehouse 1 and collects. In the prior art, when the straws enter the feeding bin 1 through the straw conveying device 2, a large amount of air (namely oxygen) can be brought in, the straws containing a large amount of air cannot meet the requirements of the process when carbonized in the pyrolysis furnace, meanwhile, because the mixed combustible gas generated by straw carbonization contains a large amount of dust, the dust is large in amount, the filtering is difficult, and certain difficulty is also caused in dust collection.
Therefore, the straw carbonization device is provided with an oxygen isolation device and a dust blocking device.
The oxygen separation device is arranged between the straw conveying device 2 and the feeding bin 1 and comprises an oxygen separation bin 6, the oxygen separation bin 6 is cylindrical, an oxygen separation bin feeding port 6.1 and an oxygen separation bin discharging port 6.2 (shown in figure 1) are oppositely arranged on the oxygen separation bin 6, the oxygen separation bin feeding port 6.1 is connected with a discharging port of the straw conveying device 2, and the oxygen separation bin discharging port 6.2 is connected with a feeding port of the feeding bin 1; a power shaft (namely a rotating shaft) is axially arranged at the center in the oxygen isolation chamber 6, four rotating blades 6.3 are arranged on the power shaft, and 6.3 adjacent rotating blades are mutually vertical (namely in a cross shape); straw falls into rotating vane and rotating vane's contained angle space from straw conveyer, rotating vane rotates the enclosure space that gets into at a distance from the oxygen storehouse, the oxygen isolation device separation the lug connection in straw conveyer and feeding storehouse, thereby prevent that straw conveyer from bringing fast flowing air (being oxygen) into along with the material, reach the effect that separates oxygen, the straw falls into the feeding storehouse through separating oxygen storehouse discharge gate and inputs the pyrolysis oven again, make the straw carbomorphism accord with the requirement of oxygen deficiency or anaerobism, rotating vane continues to rotate to the oxygen storehouse that separates of return stroke, prepare next feeding link, so circulation, thereby reach the technological requirement that separates oxygen in succession.
The calibers of the oxygen isolation bin feed inlet 6.1 and the oxygen isolation bin discharge outlet 6.2 are less than or equal to one fourth of the circumference of the oxygen isolation bin 1, and the symmetrical rotating blades 6.3 are always in a sealing state in the rotating process of the four rotating blades 6.3, so that the straw conveying device 2 is prevented from being communicated with the feed bin 1, and the purpose of oxygen isolation is achieved.
The dust blocking device comprises a filter plate 8 and an arc-shaped pressing plate 9, the filter plate 8 and the arc-shaped pressing plate 9 are positioned in the feeding bin 1, and one end of the filter plate 8 is mutually butted with one end part of the arc-shaped pressing plate 9; the other end of the filter plate 8 and the other end of the arc-shaped pressing plate 9 are respectively hinged with the feeding bin, the hinged points of the filter plate 8 and the arc-shaped pressing plate 9 are positioned at two sides of the outlet of the mixed gas collecting port, and the filter plate 8 and the arc-shaped pressing plate 9 are inverted in the feeding bin 1. Because arc clamp plate 9 has the dead weight, its articulated filter 8 is in the minimum of below all the time, biomass material (straw) constantly sends into the feeding storehouse through the feed inlet, the flow power of accompanying the straw, the straw is when filter 8 passes through, the filter floats about how much along with the straw volume, give the certain pressure of straw, make the straw that passes through the filter below become closely knit (dust in the close-knit straw easily filters the mist), the mist that thermal decomposition stove produced simultaneously filters wherein dust through close-knit straw and then overflows, discharge and collect the filter plate through mist collection mouth at last. In the process, the arc-shaped pressing plate blocks the mixed gas, the mixed gas is forced to overflow from the filtering plate only through the compact straws, the purpose of removing a large amount of dust in the mixed gas is achieved, the filtered dust is brought into the decomposing furnace by the fresh straws, and cleaning is not needed.
The filter plate 8 is formed by connecting a plurality of filter tube rows; the mass of the arc-shaped pressing plate 9 is larger than the weight of the filter plate 8.
The arc-shaped pressing plate 9 is provided with a chute 9.1, the feeding bin 1 is provided with a pin shaft 9.2, the pin shaft 9.2 is clamped in the chute 9.1, and when the filtering plate rotates 8, the arc-shaped partition 9 slides up and down along the chute 9.1, so that floating pressing is performed on the arc-shaped partition according to the excess of straws, and dust in the compacted mixed combustible gas is effectively filtered.
The straw conveying chain bed 4 is a conveying belt consisting of a plurality of chains, the every chain is provided with the separating columns 5.1 at intervals, the separating columns 5.1 on the every chain are transversely arranged, and partitions for conveying straws are formed between the transversely arranged separating columns 5.1, in other words, the separating columns 5.1 on the chains are transversely arranged to form partition plates, and partitions are formed between adjacent partition plates. The purpose is to prevent the slipping phenomenon between the partially light straws and the conveying net, so that the straws after oxygen separation cannot be smoothly conveyed into the pyrolysis furnace through the conveying chain bed, and the straws after oxygen separation are easily conveyed into the pyrolysis furnace (as shown in figure 2).
In the above-mentioned structure, because feeding storehouse 1 is connected with pyrolysis oven 3, and the mixed combustible gas gathers mouthful 1.3 through the gaseous mixture on the feeding storehouse 1 and gathers, consequently feeding storehouse 1 temperature is high, and is great to the influence of straw conveying chain bed 4, and the mixed combustible gas forms the backward flow at feeding storehouse 1 simultaneously, further aggravates the high temperature environment in the feeding storehouse 1.
Therefore, a cooling bin 7 is arranged in the feeding bin 1, and the specific arrangement mode is as follows: for the feeding bin 1, the feeding bin 1 is divided into an upper space and a lower space by the straw conveying chain bed 4, wherein the upper space is an upper-layer space 1.1, and the lower space is a lower-layer space 1.2; the cooling bin 7 is arranged in the lower-layer space 1.2, the cooling bin 7 is hollow, the outer side of the cooling bin is concave inwards to form a plurality of grooves 7.1, and the cooling bin is hollow to form a cooling medium channel 7.2; the groove 7.1 is matched with the partition column 5.1, namely, when the straw conveying chain bed 4 rotates, the partition column 5.1 passes through the groove 7.1. The width of the groove 7.1 is larger than the width of the partition column 5.1, the depth of the groove 7.1 is larger than the height of the partition column 5.1, and the partition column 5.1 is easy to pass through when the straw conveying chain bed 4 rotates conveniently.
A cooling medium inlet pipe 12 and a cooling medium outlet pipe 10 are respectively arranged on the cooling bin 7, and the cooling medium inlet pipe 12 and the cooling medium outlet pipe 10 are respectively communicated with the cooling medium channel 7.2. The cooling medium supply device 11 is connected with the cooling medium inlet pipe 12 to supply the cooling medium to the cooling bin 7, and the cooling medium supply device 11 can be a water pump for supplying cooling water. Or a fan for supplying cold air.
Claims (9)
1. Separate straw carbomorphism device of oxygen dust removal, including feeding storehouse (1), straw conveyer (2) and pyrolysis oven (3), be equipped with mist collection mouth (1.3) on feeding storehouse (1), be equipped with straw conveying chain bed (4), its characterized in that in feeding storehouse (1): the device comprises an oxygen separation device and a dust blocking device, wherein the oxygen separation device comprises an oxygen separation bin (6), the oxygen separation bin (6) is cylindrical, an oxygen separation bin feed inlet (6.1) and an oxygen separation bin discharge outlet (6.2) are oppositely arranged on the oxygen separation bin (6), the oxygen separation bin feed inlet (6.1) is connected with a straw conveying device (2), and the oxygen separation bin discharge outlet (6.2) is connected with the feed bin (1); a power shaft is axially arranged at the center in the oxygen insulation chamber (6), four rotating blades (6.3) are arranged on the power shaft, and two adjacent rotating blades (6.3) are vertical to each other;
the dust blocking device comprises a filter plate (8) and an arc-shaped pressing plate (9), the filter plate (8) and the arc-shaped pressing plate (9) are positioned in the feeding bin (1), and one end of the filter plate (8) is in butt joint with one end of the arc-shaped pressing plate (9); the other ends of the filter plate (8) and the arc-shaped pressing plate (9) are respectively hinged with the feeding bin (1), the hinged points of the filter plate (8) and the arc-shaped pressing plate are positioned at two sides of the outlet of the mixed gas collecting port (1.3), and the filter plate (8) and the arc-shaped pressing plate (9) are inverted in the feeding bin (1).
2. The oxygen-insulating and dust-removing straw carbonization device according to claim 1, which is characterized in that: the calibers of the oxygen separation bin feed port (6.1) and the oxygen separation bin discharge port (6.2) are less than or equal to one fourth of the circumference of the oxygen separation bin (6).
3. The oxygen-insulating and dust-removing straw carbonization device according to claim 1, wherein: arc clamp plate (9) on be equipped with spout (9.1), be equipped with round pin axle (9.2) on feeding storehouse (1), round pin axle (9.2) card is gone into in spout (9.1), when filter (8) rotated, arc clamp plate (9) slided from top to bottom along spout (9.1).
4. The oxygen-insulating and dust-removing straw carbonization device according to claim 1, which is characterized in that: the straw conveying chain bed (4) is characterized in that the chains (4.1) of the straw conveying chain bed (4) are provided with the spacers (5.1) at intervals, the spacers (5.1) on each chain (4.1) are transversely arranged, and partitions for conveying straws are formed among the transversely arranged spacers (5.1).
5. The oxygen-insulating and dust-removing straw carbonization device according to claim 4, which is characterized in that: also comprises a cooling bin (7); the straw conveying chain bed (4) divides the feeding bin (1) into an upper space and a lower space, the space positioned at the upper part of the straw conveying chain bed (4) is an upper space (1.1), and the space positioned at the lower part of the straw conveying chain bed (4) is a lower space (1.2); the cooling bin (7) is arranged in the lower-layer space (1.2), a plurality of grooves (7.1) are formed in the inner concave part of the outer side of the cooling bin (7), and a cooling medium channel (7.2) is formed in the cooling bin (7); when the straw conveying chain bed (4) rotates, the partition columns (5.1) pass through the grooves (7.1).
6. The oxygen-insulating and dust-removing straw carbonization device as claimed in claim 5, wherein: the cooling bin (7) is provided with a cooling medium inlet pipe (12) and a cooling medium outlet pipe (10) respectively, and the cooling medium inlet pipe (12) and the cooling medium outlet pipe (10) are communicated with a cooling medium channel (7.2) respectively.
7. The oxygen-insulating and dust-removing straw carbonization device as claimed in claim 6, wherein: the cooling medium inlet pipe (12) is connected with a cooling medium supply device (11), and the cooling medium supply device (11) is a water pump for supplying cooling water.
8. The oxygen-insulating and dust-removing straw carbonization device as claimed in claim 6, wherein: the cooling medium inlet pipe (12) is connected with a cooling medium supply device (11), and the cooling medium supply device (11) is a fan.
9. The oxygen-insulating and dust-removing straw carbonization device as claimed in claim 5, wherein: the width of the groove (7.1) is larger than that of the spacer column (5.1), and the depth of the groove (7.1) is larger than that of the spacer column (5.1).
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| CN107697666B (en) * | 2017-09-29 | 2019-06-18 | 南通亚威机械制造有限公司 | A kind of conveying device and its delivery method with dust removal component |
| CN113864787B (en) * | 2021-09-24 | 2023-11-07 | 河南中成环保科技股份有限公司 | Multistage treatment device for household garbage heat source |
| CN114146469B (en) * | 2021-11-18 | 2022-10-21 | 青核同兴能源装备有限公司 | Durable filter that leaks down |
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| KR101145828B1 (en) * | 2010-11-10 | 2012-05-17 | 주식회사 포스코 | Dust transfer device of dust collector |
| WO2012136344A1 (en) * | 2011-04-06 | 2012-10-11 | Olabil Vermögensverwaltungsgesellschaft Mbh | Conveying element for conveying a product, and method for carrying out a pyrolytic process using such a conveying element |
| KR101189588B1 (en) * | 2011-04-20 | 2012-10-10 | 전남대학교산학협력단 | Biomass solid manufacture system and manufacture method thereof |
| CN103070236B (en) * | 2013-02-18 | 2013-12-25 | 山东理工大学 | Cooling discharge type corncob drying machine |
| CN203700259U (en) * | 2014-02-26 | 2014-07-09 | 北京北方永邦科技股份有限公司 | Continuous biomass carbonization device |
| CN105109908B (en) * | 2015-07-20 | 2017-06-16 | 杭州斗源机械电子有限公司 | A kind of chain conveying mechanism |
| CN105505416B (en) * | 2015-12-18 | 2019-03-05 | 江苏鼎新环保科技有限公司 | A kind of rotary biomass continuous pyrolysis carbonizing apparatus of subregion temperature control |
| CN106116093B (en) * | 2016-07-22 | 2019-03-26 | 浙江双林机械股份有限公司 | Sludge dehydrating and drying machine and dehydration and drying method |
| CN205870671U (en) * | 2016-08-10 | 2017-01-11 | 鲁丹 | Shred device that dries behind piece is put to sweet potato shortcake |
| CN106115157A (en) * | 2016-08-11 | 2016-11-16 | 中冶京诚工程技术有限公司 | Dust suppression discharge system |
| CN206751731U (en) * | 2017-04-06 | 2017-12-15 | 四川大宇中和农业科技发展有限公司 | A kind of straw carbonizing apparatus of oxygen barrier dedusting |
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