CN212610430U

CN212610430U - Biomass pyrolysis equipment

Info

Publication number: CN212610430U
Application number: CN202021205952.4U
Authority: CN
Inventors: 李舒馨
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-02-26
Anticipated expiration: 2030-06-24

Abstract

The application discloses living beings pyrolysis equipment, burn burning furnace including the flue gas that is used for the straw pyrolysis furnace of pyrolysis straw and is used for handling the flue gas, the straw pyrolysis furnace is including being used for covering the cover body outside the straw buttress, be provided with inlet port and outlet flue on the cover body, inlet port department is provided with and seals the furnace gate of inlet port, the outlet flue with flue gas burns burning furnace detachably and connects, just outlet flue department is provided with and seals the shutoff piece of outlet flue. So set up, simple structure can put this biomass pyrolysis equipment in open-air field ground, need not to transport the straw, does benefit to reduce cost, improves straw carbomorphism efficiency. Solves the problem of high cost of the existing straw carbonization treatment mode.

Description

Biomass pyrolysis equipment

Technical Field

The application relates to the technical field of straw treatment, and more particularly relates to biomass pyrolysis equipment.

Background

With the emphasis on environmental pollution and haze in China, open-air straw burning is prohibited to be more and more strict in all parts of the country. In cities, a great amount of branches, hay and aquatic plants growing in rivers are usually built for greening. At present, Beijing has issued a command to prohibit the biomass wastes from causing atmospheric pollution. However, if these biomass wastes do not have a good treatment method, the environment is polluted.

At present, the treatment methods of straws are provided with several methods: (1) crushing and burying the straws in soil; (2) as a livestock feed; (3) performing composting to produce green fertilizer; (4) and (5) generating power by using the straws. These treatment methods have limitations and cannot solve the problem of comprehensive utilization of straws in sustainable and large-scale commercialization. This is because: (1) the agricultural pests in the straws are buried in the soil after being crushed and buried, are not killed, can be well propagated, and directly threatens the agricultural production in the next year. The straw treatment cost is increased due to too deep burying; the burying is too shallow, which seriously affects the growth of the root system of the crops; (2) as the livestock feed, the growth and development of the livestock also need various nutrient elements, only the straws are fed, protein-rich foods such as bean cakes and grains are not added, the livestock is not like to eat or grow, the large-scale straws are consumed by a method for feeding the livestock, a large amount of grains are required to be consumed, and the number of the straws is multiplied while the grains are consumed, so the straws are unsustainable as the livestock feed; (3) retting farmyard manure, as well as being used as livestock feed, the growth of the fermenting bacteria also requires various nutrients and environments, the food for the bacteria growth requires a certain carbon-nitrogen ratio, otherwise the fiber (carbon) is not available; (4) straw power generation involves a plurality of problems of straw collection, sorting, transportation, storage, corrosion prevention and the like, and the acquisition cost is increased sharply; in addition, compared with the traditional fossil fuel, the crop straw also has the characteristics of small density, large volume and the like, even if the weight is the same, if the density is small, a large container is needed during transportation, the collection and transportation cost is also increased, and due to the seasonality of straw production, the production period of a straw power plant is short, so that the small power generation and the short production period have little benefit, and the national power grid also needs to increase a large amount of cost to maintain the stability of the power grid.

The biochar prepared by carbonizing the straws has larger porosity and specific surface area, stronger adsorption force, oxidation resistance and biological decomposition resistance, can effectively improve the soil structure and physicochemical property and increase the soil carbon content, and is a multipurpose material with high organic carbon content, porosity, alkalinity, strong adsorption capacity. The biochar applied to the soil can improve the organic carbon content of the soil, improve the water retention and fertilizer retention performance of the soil, reduce nutrient loss, and is beneficial to soil microorganism inhabitation and activity, particularly the fungus of the mycorrhiza, and is a good soil conditioner. The biochar delays the release of nutrients of the fertilizer in soil, reduces nutrient loss and improves the utilization rate of the fertilizer nutrients, and is a synergistic carrier of the fertilizer. The biochar is extremely stable in soil, can fix carbon in the soil for a long time, and is a potential carrier for carbon fixation.

The air-isolated heating and carbonization of the straws is theoretically simple, but the collection and transportation cost is high due to the light density of the straws. If the treatment is centralized, the production cost of the biochar is high. Most of the existing equipment for carbonizing straws is a rotary kiln or a vertical kiln, is large in size, complex in structure and incapable of moving, and when the straws need to be carbonized, the straws need to be conveyed into a treatment plant, so that the transportation cost is increased due to low straw density.

Therefore, how to solve the problem of high cost of the existing straw carbonization treatment mode is a key technical problem to be solved by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems in the related art at least to a certain extent, the application aims to provide biomass pyrolysis equipment which can solve the problem that the existing mode for treating straw carbonization is high in cost.

The application provides a living beings pyrolysis equipment, burn burning furnace including the flue gas that is used for the straw pyrolysis furnace of pyrolysis straw and is used for handling the flue gas, the straw pyrolysis furnace is including being used for covering the cover body outside the straw buttress, be provided with inlet port and outlet flue on the cover body, inlet port department is provided with and seals the furnace gate of inlet port, the outlet flue with flue gas burns burning furnace detachably and connects, just outlet flue department is provided with and seals the shutoff piece of outlet flue.

Preferably, the smoke outlet and the air inlet are respectively arranged on two opposite side walls of the cover body, and the height of the smoke outlet is higher than that of the air inlet.

Preferably, the oven door is rotatably or detachably connected to the hood.

Preferably, the closure is rotatably or removably attached to the cover.

Preferably, the flue gas incinerator comprises an inner shell provided with an inner cavity, an outer shell sleeved outside the inner shell, and a chimney arranged above the inner shell and communicated with the inner cavity, a gap is reserved between the side walls of the inner shell and the outer shell, a plurality of through holes communicated with the gap are arranged on the upper portion of the side wall of the inner shell, a flue inlet communicated with the flue outlet is arranged on the side wall of the inner shell, a fire source for burning flue gas is arranged in the inner cavity, a plurality of air inlets for allowing air to enter are arranged at the bottom ends of the inner shell and the outer shell, and the plurality of air inlets are respectively communicated with the gap and the inner cavity.

Preferably, an inlet for the fire source to enter and exit is arranged on the side wall of the inner shell opposite to the smoke inlet, an inlet pipe is arranged at the inlet, and one end of the inlet pipe, which is far away from the inner shell, protrudes out of the outer shell.

Preferably, the flue gas incinerator and the straw pyrolysis furnace are communicated through a pipeline, and two ends of the pipeline are respectively detachably connected with the flue gas incinerator and the smoke outlet.

Preferably, the straw pyrolysis furnace and the flue gas incinerator are made of common carbon steel.

Preferably, the fire source is a straw gasification furnace or a liquefied petroleum gas furnace or a methanol furnace.

Preferably, the cover body comprises a multi-surface common carbon steel sheet and a bracket for supporting and fixing the common carbon steel sheet.

The technical scheme provided by the application can comprise the following beneficial effects:

the application provides a living beings pyrolysis equipment, burn burning furnace including straw pyrolysis oven and flue gas, the straw pyrolysis oven including the cover body, in order to cover outside the straw buttress, make the straw can be at the internal pyrolysis carbomorphism of cover body. The cover body is provided with an air inlet and a smoke outlet, the air inlet is provided with a furnace door, and the furnace door can seal the air inlet so that outside air can not enter the cover body; the flue gas burns burning furnace and is connected with outlet flue detachably to when the internal straw burning of cover, can burn burning furnace and straw pyrolysis oven with the flue gas and be connected, the flue gas that makes the straw burning produce can enter into in the flue gas burns burning furnace through the outlet flue, and through the smokeless emission of processing back of flue gas burning furnace. The blocking piece is arranged at the smoke outlet and can seal the smoke outlet, so that the external air is prevented from entering the cover body from the smoke outlet.

When the straws are carbonized, the cover body is covered outside the straw stack firstly, then the straw stack is ignited, the smoke outlet is connected with the smoke incinerator, at the moment, the air inlet and the smoke outlet are in an open state, air can enter the cover body, the straws are guaranteed to be burnt, after the straws are burnt for a certain time (or reach a certain temperature), the furnace door and the plugging piece are closed, a closed space is formed in the cover body, the straws cannot be burnt continuously, and therefore pyrolysis and carbonization are achieved.

So set up, simple structure can put this biomass pyrolysis equipment in open-air field ground, need not to transport the straw, does benefit to reduce cost, improves straw pyrolysis carbomorphism efficiency. Solves the problem of high cost of the existing straw carbonization treatment mode.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

FIG. 1 is a schematic block diagram of the present biomass pyrolysis apparatus shown in accordance with some exemplary embodiments;

FIG. 2 is a schematic diagram of a flue gas incinerator, shown in accordance with some exemplary embodiments.

In the figure:

1. a cover body; 2. a flue gas incinerator; 3. a chimney; 4. a furnace door; 5. a smoke outlet; 6. a flue gas valve; 7. an inner shell; 8. a housing; 9. a gap; 10. a grate; 11. a through hole; 12. a smoke inlet; 13. an inlet pipe.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims.

Referring to fig. 1-2, the present embodiment provides a biomass pyrolysis apparatus, which includes a straw pyrolysis furnace and a flue gas incinerator 2, wherein the straw pyrolysis furnace includes a cover body 1 to cover outside a straw stack, so that the straw can be pyrolyzed and carbonized in the cover body 1. Wherein, the cover body 1 is provided with an air inlet and an air inlet of the smoke outlet 5 is provided with a furnace door 4, the furnace door 4 can seal the air inlet, so that the outside air can not enter the cover body 1; the flue gas burns burning furnace and is connected with 5 detachably of outlet flue to when the straw burning of the cover body 1 in, can burn burning furnace and pyrolysis oven with the flue gas and be connected, the flue gas that makes the straw burning produce can enter into the flue gas burns burning furnace in through outlet flue 5, and through the smokeless emission after the processing of flue gas burning furnace.

And, in order to guarantee that the straw can the pyrolysis carbonization, need to guarantee to form airtight environment in the cover body 1, specifically, can be provided with the shutoff piece in outlet flue department, the shutoff piece can seal the outlet flue to avoid outside air to enter into the cover body 1 from the outlet flue. Namely, the furnace door 4 and the plugging piece respectively seal the air inlet and the smoke outlet 5, and the bottom end of the cover body 1 is in contact with the ground for sealing, so that a closed space is formed in the cover body 1, air is blocked from entering the cover body 1, and the straws cannot be continuously combusted, thereby realizing pyrolysis and carbonization.

When the straws are carbonized, the cover body 1 is covered outside the straw stack firstly, then the straw stack is ignited, the smoke outlet 5 is connected with the smoke incinerator 2, at the moment, the air inlet and the smoke outlet 5 are in an open state, air can enter the cover body 1, the straws are guaranteed to be burnt, after the straws are burnt for a certain time (or reach a certain temperature), the furnace door 4 and the plugging piece are closed, a closed space is formed in the cover body 1, the straws cannot be burnt continuously, and therefore pyrolysis and carbonization are achieved.

It should be noted that the burning time of the straw is determined according to the size of the straw stack or the amount of the straw, and is not specifically limited herein, and is determined according to the actual situation.

In this embodiment, the smoke outlet 5 and the air inlet are respectively disposed on two opposite side walls of the cover body 1, and the height of the smoke outlet 5 is higher than that of the air inlet, so that the smoke can be discharged from the smoke outlet without being discharged from the air inlet.

Wherein, the furnace door 4 can be detachably connected with the air inlet, and the furnace door 4 can also be rotatably connected with the air inlet. The closure may be detachably connected at the smoke outlet 5 or may also be rotatably connected at the smoke outlet 5.

In order to reduce costs, the oven door 4 and the blocking element can be manually controlled by the operator to close the air inlet when the hood 1 stops charring. The shutoff piece can detachably connect in outlet flue 5 department, and when the cover body 1 stopped the carbomorphism, putaway from the flue gas and burn burning furnace 2, with the shutoff of shutoff piece with outlet flue 5.

The furnace door 4 and the plugging piece can be plugs detachably connected to the air inlet hole and the smoke outlet 5 respectively, and the plugs can be tightly matched with the air inlet hole so as to be fixed at the air inlet hole.

In order to further reduce the cost, the soil heap is arranged close to the bottom end of the cover body 1, so that the bottom end of the cover body 1 is sealed by the soil heap, namely soil sealing.

In this embodiment, as shown in fig. 2, the flue gas incinerator 2 includes an inner shell 7, an outer shell 8 and a chimney 3, the inner shell 7 is provided with an inner cavity, the outer shell 8 is sleeved outside the inner shell 7, a gap 9 is left between the side walls of the outer shell 8 and the inner shell 7, the upper portion of the side wall of the inner shell 7 is provided with a plurality of through holes 11 communicated with the gap 9, so that air in the gap 9 can enter the inner cavity through the through holes 11, the chimney 3 is arranged above the inner shell 7, and the chimney 3 is communicated with the inner cavity, so that the air in the inner cavity can be discharged through the chimney 3.

It should be noted that, the straw is in the straw pyrolysis furnace to react with the air entering from the furnace door 4, and a large amount of smoke is generated, and due to the suction force of the chimney 3, the smoke is discharged from the chimney 3, and cannot be discharged from the furnace door 4, and cannot be discharged from the straw pyrolysis furnace gap. The smoke (fine carbon particles) is ignited in the flue gas incinerator 2 and discharged from the flue pipe 3 to the atmosphere.

Wherein, the side wall of the inner shell 7 is provided with a smoke inlet 12, and the smoke inlet 12 is communicated with the smoke outlet 5, so that the smoke generated in the straw pyrolysis furnace can enter the smoke incinerator 2.

Be provided with the fire source in the inner chamber to be used for providing heat energy for the flue gas burning, the fire source can burn the particulate matter in the flue gas once more promptly, thereby gets rid of the particulate matter in the flue gas, realizes smokeless emission.

In order to facilitate the combustion of the particulate matters in the flue gas by the fire source, a plurality of air inlet holes for air to enter are formed in the bottom ends of the inner shell 7 and the outer shell 8, and the air inlet holes are communicated with the gap 9 and the inner cavity respectively, so that air enters the inner cavity from the bottom of the inner shell 7 and enters the inner cavity from the upper part of the inner shell 7 respectively, the particulate matters in the flue gas are combusted more fully, and the smokeless processing efficiency of the flue gas is improved.

Here, the inner shell 7 and the outer shell 8 are two sleeves with different diameters, the top ends of the two sleeves are closed, mounting holes are formed in the top end of the inner shell 7 to mount the chimney 3, the bottom ends of the two sleeves are provided with the grate 10, and the air inlet holes are holes in the grate 10.

Air enters the inner cavity and the gap 9 from the grate 10, straws are arranged at the lower part of the inner cavity for burning, flue gas coming from the straw pyrolysis furnace is burnt, and smoke exists at the upper part; the gap 9 heats air, the air is heated and rises, and the air enters the inner cavity at the upper part to participate in combustion, so that particulate matters of smoke in the inner cavity are completely burnt.

It should be noted that the fire source may be a liquefied petroleum gas furnace, a natural gas furnace, a methanol furnace, a straw gasification furnace, or other devices capable of burning flue gas, so as to burn flue gas and burn particulate matters in the flue gas.

An inlet is arranged on the side wall of the inner shell 7 opposite to the smoke inlet 12, an inlet pipe 13 is arranged at the inlet, and one end of the inlet pipe 13 far away from the inner shell 7 protrudes out of the outer shell 8, so that an operator can conveniently place a fire source in the inner cavity or take the fire source out of the inner cavity. When the fire source is burning straws, the inlet can be used as a feed inlet to feed materials into the inner cavity, so that the fire extinguishment caused by insufficient fuel in the inner cavity is avoided.

It should be noted that the burning straw used as the fire source of the flue gas incinerator can be completely burnt to generate plant ash, the flue gas generated by burning straw is burned again under the action of hot air and flame, and the particulate matters in the flue gas are eliminated after being burned.

In this embodiment, the flue gas incinerator 2 is communicated with the straw pyrolysis furnace through a pipeline, and two ends of the pipeline are respectively detachably connected with the smoke outlet 5 and the smoke inlet of the flue gas incinerator. Before the straw stack is burnt in the straw pyrolysis furnace, the smoke inlet and the smoke outlet 5 of the smoke incinerator are communicated through a pipeline; when straw pyrolysis carbonization is needed, the pipeline is disassembled, and the smoke outlet 5 is blocked by a blocking piece.

In order to move the biomass pyrolysis equipment conveniently, the straw pyrolysis furnace and the flue gas incinerator 2 are formed by surrounding or splicing common carbon steel sheets, so that the weight of the biomass pyrolysis equipment is favorably reduced, the structure is simplified, and the cost is reduced.

Wherein, the straw pyrolysis furnace can be by five ordinary carbon steel thin plates enclose into the square structure of no end of constituteing with the support, and this square structure of no end is placed subaerial, and five ordinary carbon steel thin plates cooperate (the soil seal) can form confined pyrolysis space with ground, and this kind of square structure of no end is convenient for extensive straw firewood buttress to be handled, need not transport the firewood buttress. The straw pyrolysis furnace can also be in an oval shape or other shapes, and the shape is not particularly limited.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. The utility model provides a biomass pyrolysis equipment, its characterized in that, burns burning furnace (2) including the straw pyrolysis furnace that is used for the pyrolysis straw and the flue gas that is used for handling the flue gas, the straw pyrolysis furnace is including being used for covering cover body (1) outside the straw buttress, be provided with inlet port and outlet flue (5) on cover body (1), inlet port department is provided with can seal furnace gate (4) of inlet port, outlet flue (5) with burning furnace (2) detachably is burnt in the flue gas is connected, just outlet flue (5) department is provided with and seals the shutoff piece of outlet flue (5).

2. The biomass pyrolysis apparatus according to claim 1, wherein the smoke outlet (5) and the air inlet are respectively disposed on two opposite side walls of the housing (1), and the height of the smoke outlet (5) is higher than that of the air inlet.

3. The biomass pyrolysis apparatus of claim 1, characterized in that the oven door (4) is rotatably or detachably connected to the hood (1).

4. The biomass pyrolysis apparatus of claim 1, wherein the block piece is rotatably or detachably attached to the hood (1).

5. The biomass pyrolysis device according to claim 1, wherein the flue gas incinerator (2) comprises an inner shell (7) provided with an inner cavity, an outer shell (8) sleeved outside the inner shell (7) and a chimney (3) arranged above the inner shell (7) and communicated with the inner cavity, a gap (9) is reserved between the side walls of the inner shell (7) and the outer shell (8), the upper part of the side wall of the inner shell (7) is provided with a plurality of through holes (11) communicated with the gap (9), a smoke inlet (12) communicated with the smoke outlet (5) is arranged on the side wall of the inner shell (7), a fire source for burning smoke is arranged in the inner cavity, and a plurality of air inlets for air to enter are arranged at the bottom ends of the inner shell (7) and the outer shell (8), and the plurality of air inlets are respectively communicated with the gap (9) and the inner cavity.

6. The biomass pyrolysis device according to claim 5, wherein an inlet for the fire source to enter and exit is arranged on the side wall of the inner shell (7) opposite to the smoke inlet (12), an inlet pipe (13) is arranged at the inlet, and one end of the inlet pipe (13) far away from the inner shell (7) protrudes out of the outer shell (8).

7. The biomass pyrolysis apparatus according to claim 1, wherein the flue gas incinerator (2) and the straw pyrolysis furnace are communicated through a pipe, and both ends of the pipe are detachably connected with the flue gas incinerator (2) and the smoke outlet (5), respectively.

8. The biomass pyrolysis apparatus according to claim 1, wherein the straw pyrolysis furnace and the flue gas incinerator (2) are made of plain carbon steel.

9. The biomass pyrolysis apparatus of claim 5, wherein the fire source is a straw gasifier or a liquefied petroleum gas furnace or a methanol furnace.

10. The biomass pyrolysis apparatus according to claim 1, wherein the cover body (1) comprises a multi-surface plain carbon steel sheet and a bracket for supporting and fixing the plain carbon steel sheet.