CN219885988U

CN219885988U - Biomass pyrolysis oil production device

Info

Publication number: CN219885988U
Application number: CN202321454830.2U
Authority: CN
Inventors: 白雨桐; 蔡源慈; 张书; 卫俊涛; 李苏宸; 常悦; 孙赫; 农美鑫; 谢慧; 陈昱颖
Original assignee: Nanjing Forestry University
Current assignee: Nanjing Forestry University
Priority date: 2023-06-08
Filing date: 2023-06-08
Publication date: 2023-10-24
Anticipated expiration: 2033-06-08

Abstract

The utility model discloses a biomass pyrolysis oil production device which comprises a pyrolysis reaction furnace and an air condenser, wherein a feed inlet of the pyrolysis reaction furnace is detachably connected with a dehumidification and crushing device, an air outlet of the air condenser is provided with an air pipeline, and the other end of the air pipeline is in fluid communication with the dehumidification and crushing device. According to the utility model, through the arrangement of the dehumidifying and crushing device, after the device cuts and crushes biomass raw materials, the grinding stone can uniformly grind and crush the raw materials, so that the crushing effect is further improved, the raw materials are easier to be pyrolyzed in the pyrolysis reaction furnace, and the oil production efficiency is improved; the steam that air condenser heat transfer goes out can blow the dehumidification to the raw materials to make heat conduction arc heating carry out kang dry dehumidification to the raw materials, improved the desiccation of living beings raw materials, thereby reduced the water content of oil production, make the quality of oil production better, the device is higher to smashing, the dehumidification efficiency of living beings raw materials, has improved the oil production efficiency of the device.

Description

Biomass pyrolysis oil production device

Technical Field

The utility model relates to the technical field of biomass pyrolysis. In particular to a biomass pyrolysis oil production device.

Background

Pyrolysis is a process of cutting off chemical bonds of biomass macromolecules by using heat energy under the condition of complete oxygen deficiency or limited oxygen supply of biomass, so that the biomass is converted into 3 components of low-molecular liquid bio-oil, combustible gas and solid carbon, and compared with biomass raw materials, the pyrolyzed fuel has the advantages of high energy density, easiness in storage and transportation and the like.

The process flow for preparing the oil by biomass pyrolysis comprises drying, crushing and thermal cracking of materials, output of product carbon, cooling of gaseous biological oil and the like, and at present, when the biomass pyrolysis is used for preparing the oil, a drying agent is often added into biomass raw materials or the biomass is dried, a certain period is needed for drying, and then the biomass is crushed and then is input into a pyrolysis reaction furnace, so that the method is time-consuming and labor-consuming, the production of the biomass oil is influenced, and the oil preparation efficiency is lower.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is to provide the biomass pyrolysis oil production device with higher oil production efficiency.

In order to solve the technical problems, the utility model provides the following technical scheme: the biomass pyrolysis oil production device comprises a pyrolysis reaction furnace and an air condenser, wherein a feed inlet of the pyrolysis reaction furnace is detachably connected with a dehumidification and crushing device, an air outlet of the air condenser is provided with an air pipeline, and the other end of the air pipeline is in fluid conduction with the dehumidification and crushing device; the dehumidifying and crushing device comprises a shell and a U-shaped cavity, wherein the U-shaped cavity is arranged in the side wall of the shell, the inner wall of the shell is fixedly connected with a baffle plate, the baffle plate divides the interior of the shell into an upper cavity and a lower cavity, a plurality of filtering holes are formed in the baffle plate, the upper cavity and the lower cavity are communicated through the filtering holes, and the U-shaped cavity is in fluid communication with the upper cavity; the inner wall of the shell is positioned below the lower cavity, a heat conduction arc plate matched with the U-shaped cavity is arranged below the lower cavity, a grinding component is arranged in the upper cavity, a grinding component is arranged in the lower cavity, the grinding component is in driving connection with the grinding component, and in the process of grinding raw materials by the grinding component, the hot gas exhausted by the air condenser through heat exchange is input into the U-shaped cavity, and then is blown to the raw material to dehumidify the raw material, the crushed raw material falls into the lower cavity through the filtering holes, the raw material is crushed again by the grinding component, and the raw material kang is dehumidified by the heat conducting arc plate in the crushing process.

Above-mentioned biomass pyrolysis oil production device, crushing subassembly includes cutting blade and first gear, cutting blade sets up in the last cavity of shell, cutting blade's axial region and baffle rotate to be connected, the bottom coaxial coupling of first gear and cutting blade axial region.

The biomass pyrolysis oil production device comprises a motor, a grinding stone and an installation shell, wherein the motor is installed at the bottom of the shell, the output end of the shell penetrates into the end part of the shell and is coaxially connected with the grinding stone, the shape of the grinding stone is adapted to that of a heat conduction arc-shaped plate, and a plurality of fixing pipes are arranged on the heat conduction arc-shaped plate; the installation shell is fixed in the bottom of baffle, the tip that the mill stone top axle head penetrated the installation shell is equipped with the second gear, one side meshing of second gear is connected with the third gear, and the diameter of second gear is greater than the diameter of third gear, the top coaxial coupling of third gear has the fourth gear, the top and the baffle rotation of fourth gear are connected, the fourth gear is connected with first gear meshing, and the diameter of fourth gear is greater than the diameter of first gear.

Above-mentioned biomass pyrolysis oil production device, the top of shell is equipped with the heater, the input port and the gas-supply pipeline fluid of heater switch on, the gas outlet and the U-shaped chamber fluid of heater switch on, install the thermometer on the gas-supply pipeline, thermometer and heater electric connection.

Above-mentioned biomass pyrolysis oil production device, the top of shell is equipped with the opening, and articulates on the shell has the closing door with opening looks adaptation.

Above-mentioned biomass pyrolysis oil production device, be equipped with the chute in the diapire of shell, the chute is in fluid communication with the bottom of fixed pipe, the bottom of shell is equipped with the row material pipe with chute looks adaptation, and the bottom of row material pipe is in fluid communication with the delivery port of pyrolysis reaction furnace.

According to the biomass pyrolysis oil production device, the filter screen is arranged in the communication hole between the upper cavity of the shell and the U-shaped cavity.

Above-mentioned biomass pyrolysis oil production device, one side fixedly connected with of grindstone top axle head is with the scrubbing brush of filtration pore looks adaptation.

Above-mentioned biomass pyrolysis oil production device, install the thermometer on the gas transmission pipeline, the bin outlet of pyrolysis reaction stove bottom is provided with the collecting box, one side of pyrolysis reaction stove can be dismantled and be connected with inert gas input device, the gas outlet of pyrolysis reaction stove opposite side can be dismantled and be connected with cyclone, the feed inlet and the collection box fluid of cyclone bottom switch on, cyclone's gas outlet and air condenser's air inlet fluid switch on.

The technical scheme of the utility model has the following beneficial technical effects:

according to the utility model, through the arrangement of the dehumidifying and crushing device, after the device cuts and crushes biomass raw materials, the grinding stone can uniformly grind and crush the raw materials, so that the crushing effect is further improved, the raw materials are easier to be pyrolyzed in the pyrolysis reaction furnace, and the oil production efficiency is improved; the steam that air condenser heat transfer goes out can blow dehumidification to the raw materials to make heat conduction arc heating carry out kang dry dehumidification to the raw materials, improved biomass raw materials's desiccation, thereby reduced the water content of producing oil, make the quality of producing oil better, the device realizes cutting and grinding two kinds of different crushing effects through a motor, the design is exquisite, and the waste of the energy has been reduced, the device is higher to biomass raw materials's crushing, dehumidification efficiency, make it can constantly supply in to pyrolysis reaction stove, the oil production efficiency of the device has been improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the dehumidifying and pulverizing apparatus of the present utility model;

fig. 3 is a schematic view of a partial enlarged structure of fig. 2 a of the present utility model.

The reference numerals in the drawings are as follows: 1. a pyrolysis reaction furnace; 2. a collection box; 3. a gas line; 4. a dehumidifying and crushing device; 401. a housing; 402. a U-shaped cavity; 403. a partition plate; 404. filtering holes; 405. a thermally conductive arcuate plate; 406. cutting the blade; 407. a first gear; 408. a motor; 409. grinding stone; 410. a mounting shell; 411. a second gear; 412. a third gear; 413. a fourth gear; 414. a heater; 415. closing the door; 416. a chute; 417. a discharge pipe; 418. a filter screen; 419. a fixed tube; 420. a scrubber; 5. an inert gas input device; 6. a cyclone separator; 7. an air condenser; 8. a thermometer.

Detailed Description

Referring to fig. 1, a biomass pyrolysis oil production device in this embodiment includes a pyrolysis reaction furnace 1 and an air condenser 7, wherein a feed inlet of the pyrolysis reaction furnace 1 is detachably connected with a dehumidification and pulverization device 4, an air outlet of the air condenser 7 is provided with an air pipeline 3, and the other end of the air pipeline 3 is in fluid communication with the dehumidification and pulverization device 4; as shown in fig. 2, the dehumidifying and pulverizing device 4 comprises a housing 401 and a U-shaped cavity 402, the U-shaped cavity 402 is arranged in the side wall of the housing 401, a partition plate 403 is fixedly connected to the inner wall of the housing 401, the partition plate 403 divides the interior of the housing 401 into an upper chamber and a lower chamber, a plurality of filter holes 404 are arranged on the partition plate 403, the upper chamber and the lower chamber are communicated through the filter holes 404, and the U-shaped cavity 402 is in fluid communication with the upper chamber; the shell 401 inner wall is located the below of cavity down and is equipped with and U-shaped chamber 402 looks adaptation heat conduction arc 405, heat conduction arc 405 is that the better material of heat conductivity such as metal is made, heat steam in the U-shaped chamber 402 heats back to heat conduction arc 405, heat conduction arc 405 dehumidifies biomass raw materials kang, install crushing unit in the upper chamber, install the grinding unit in the lower chamber, and crushing unit is connected with the grinding unit drive, crushing unit is to the raw materials crushing in-process, the hot gas of air condenser 7 heat transfer exhaust is input in the U-shaped chamber 402, and then blow raw materials to dehumidify it, the raw materials after smashing falls into in the lower chamber through filtration pore 404, the grinding unit grinds evenly to the raw materials, further improved crushing effect, biomass particles gets into pyrolysis reaction furnace 1, can be better by pyrolysis, pyrolysis efficiency has been improved, thereby oil production efficiency has been improved, and in the grinding crushing process heat conduction arc 405 dehumidifies biomass raw materials kang, further improved dehumidification effect, thereby the water content of oil production has been improved, the device is to the crushing of biomass raw materials, dehumidification efficiency is higher, make it can not broken and the pyrolysis reaction furnace 1 is to make the device.

As shown in fig. 2, the pulverizing assembly includes a cutting blade 406 and a first gear 407, the cutting blade 406 is disposed in the upper chamber of the housing 401, as shown in fig. 3, a shaft portion of the cutting blade 406 is rotatably connected with the partition plate 403, the first gear 407 is coaxially connected with a bottom end of the shaft portion of the cutting blade 406, and the first gear 407 rotates to cause the cutting blade 406 to pulverize the biomass raw material.

As shown in fig. 2, the grinding assembly comprises a motor 408, a grinding stone 409 and a mounting shell 410, wherein the motor 408 is mounted at the bottom of the housing 401, the output end of the housing 401 penetrates into the end part of the housing 401 and is coaxially connected with the grinding stone 409, the shape of the grinding stone 409 is adapted to that of the heat-conducting arc plate 405, a plurality of fixing pipes 419 are arranged on the heat-conducting arc plate 405, and the aperture of the fixing pipes 419 is smaller than that of the filtering holes 404; the installation shell 410 is fixed in the bottom of baffle 403, as shown in fig. 3, the tip that the mill stone 409 top axle head penetrated installation shell 410 is equipped with second gear 411, one side meshing of second gear 411 is connected with third gear 412, and the diameter of second gear 411 is greater than the diameter of third gear 412, the top coaxial coupling of third gear 412 has fourth gear 413, the top and the baffle 403 rotation of fourth gear 413 are connected, fourth gear 413 is connected with first gear 407 meshing, and the diameter of fourth gear 413 is greater than the diameter of first gear 407, start motor 408, mill stone 409 rotates and carries out secondary crushing to the biomass material after smashing, further improve the crushing effect of device, second gear 411 drives third gear 412, fourth gear 413 drives first gear 407 and rotates, make cutting blade 406 rotate, make the device can make crushing subassembly and grinding subassembly work simultaneously, the output of the energy has been saved, and through first gear 407, the difference of third gear 412 and fourth gear 413 diameter, the rotation speed of cutting blade 406 is greater than the rotation speed of mill stone 409.

As shown in fig. 2, a heater 414 is arranged at the top of the housing 401, an input port of the heater 414 is in fluid communication with the gas pipeline 3, and an air outlet of the heater 414 is in fluid communication with the U-shaped cavity 402; the thermometer 8 is arranged on the gas transmission pipeline 3, the thermometer 8 is electrically connected with the heater 414, the thermometer 8 can control the heater 414 to be turned on and off, in the early use period of the device, the heater 414 can heat the gas because the gas output by the air condenser 7 is insufficient to heat and dehumidify the biomass raw material, and after the device runs for a period of time, the thermometer 8 controls the heater 414 to be turned off after the gas output by the air condenser 7 reaches a certain temperature.

As shown in fig. 2, an opening is formed at the top of the housing 401, and a closing door 415 adapted to the opening is hinged to the housing 401, and the biomass raw material can be added into the dehumidifying and pulverizing device by opening the closing door 415.

As shown in fig. 2, a chute 416 is disposed in the bottom wall of the housing 401, the bottom wall of the chute 416 is inclined, so that the biomass raw material flows to the upper side of the discharge pipe 417, the chute 416 is in fluid communication with the bottom end of the fixed pipe 419, the bottom end of the housing 401 is provided with a discharge pipe 417 adapted to the chute 416, the bottom end of the discharge pipe 417 is in fluid communication with the feed port of the pyrolysis reactor 1, the crushed and dehumidified biomass raw material particles fall into the chute 416 through the fixed pipe 419, flow to the upper side of the discharge pipe 417, and are input into the pyrolysis reactor 1 through the discharge pipe 417.

As shown in fig. 2, a filter screen 418 is installed in the communication hole between the upper chamber of the housing 401 and the U-shaped chamber 402, so as to prevent the biomass raw material from entering the U-shaped chamber 402 to cause blockage.

As shown in fig. 2, a scrubbing brush 420 matched with the filter hole 404 is fixedly connected to one side of the top shaft end of the grinding stone 409, and the grinding stone 409 rotates with the scrubbing brush 420, so that the scrubbing brush 420 continuously dredges the filter hole 404, and the filter hole 404 is prevented from being blocked.

As shown in fig. 1, the material outlet at the bottom of the pyrolysis reaction furnace 1 is provided with a collecting box 2, one side of the pyrolysis reaction furnace 1 is detachably connected with an inert gas input device 5, the inert gas input device 5 is in the prior art, different inert gases such as nitrogen and the like can be selectively conveyed into the pyrolysis reaction furnace 1 according to different requirements (the main function of nitrogen charging is to prevent oxygen from reacting with carbonized substances, thereby avoiding oxidation reaction in the pyrolysis process), the air outlet at the other side of the pyrolysis reaction furnace 1 is detachably connected with a cyclone separator 6, the material inlet at the bottom of the cyclone separator 6 is in fluid connection with the collecting box 2, the air outlet of the cyclone separator 6 is in fluid connection with the air inlet of an air condenser 7, the dehumidifying and crushing device 4 dehumidifies and crushes biomass raw materials, and then inputs the crushed raw materials into the pyrolysis reaction furnace 1, biomass charcoal, pyrolysis produced gas and the like are obtained after pyrolysis treatment, the pyrolysis produced gas is input into the collecting box 2 from the material outlet at the bottom of the pyrolysis reaction furnace 1, the gas produced by the cyclone separator 6 is input into the air outlet, the cyclone separator 6 can separate solid impurities in the pyrolysis produced gas from the pyrolysis gas, and the condensed materials from the bottom of the pyrolysis reaction furnace 1 are separated from the air outlet, the condensed materials are discharged from the air outlet of the air condenser 7, and the condensed materials can be discharged from the air outlet of the condensed from the air condenser 7, and the condensed materials are discharged from the air condenser 7, and the condensed from the air condenser 4 is discharged from the air outlet is discharged from the air condenser 7, and the condensed from the air condenser 4.

In actual use, hot gas generated in the heat exchange process of the air condenser 7 is input into the U-shaped cavity 402 through the gas transmission pipeline 3, and then the hot gas is blown to the biomass raw material to dehumidify the biomass raw material, and meanwhile, the heat conduction arc plate 405 is heated, the motor 408 drives the grinding stone 409 to rotate, the second gear 411 drives the third gear 412, the fourth gear 413 drives the first gear 407 to rotate, the cutting blade 406 rotates to grind the biomass raw material, the ground biomass raw material falls into the lower cavity of the shell 401 through the filtering hole 404, the grinding stone 409 rotates to grind the ground biomass raw material secondarily, the grinding effect of the device is further improved, the grinding stone 409 heats the biomass raw material in a kang drying manner in the grinding process of the biomass raw material, the ground and dehumidified biomass raw material particles fall into the chute 416 through the fixed pipe 419, and are input into the pyrolysis reaction furnace 1 through the discharging pipe 417.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While the obvious variations or modifications which are extended therefrom remain within the scope of the claims of this patent application.

Claims

1. The biomass pyrolysis oil production device comprises a pyrolysis reaction furnace (1) and an air condenser (7), and is characterized in that a dehumidification smashing device (4) is detachably connected to a feed inlet of the pyrolysis reaction furnace (1), a gas outlet of the air condenser (7) is provided with a gas pipeline (3), and the other end of the gas pipeline (3) is in fluid communication with the dehumidification smashing device (4); the dehumidifying and crushing device (4) comprises a shell (401) and a U-shaped cavity (402), the U-shaped cavity (402) is arranged in the side wall of the shell (401), a partition plate (403) is fixedly connected to the inner wall of the shell (401), the partition plate (403) divides the interior of the shell (401) into an upper cavity and a lower cavity, a plurality of filter holes (404) are formed in the partition plate (403), the upper cavity and the lower cavity are communicated through the filter holes (404), and the U-shaped cavity (402) is in fluid communication with the upper cavity; the utility model discloses a grinding device, including shell (401) inner wall, grinding component, air condenser (7) heat transfer exhaust steam input U-shaped chamber (402), and then blow the raw materials and dehumidify it, in the raw materials after smashing falls into lower cavity through filtration pore (404), grinding component smashes the raw materials once more, and smashes in-process heat conduction arc (405) to the dry dehumidification of raw materials kang to the raw materials.

2. The biomass pyrolysis oil production device according to claim 1, wherein the smashing component comprises a cutting blade (406) and a first gear (407), the cutting blade (406) is arranged in an upper cavity of the shell (401), a shaft portion of the cutting blade (406) is rotationally connected with the partition plate (403), and the first gear (407) is coaxially connected with the bottom end of the shaft portion of the cutting blade (406).

3. The biomass pyrolysis oil production device according to claim 2, wherein the grinding assembly comprises a motor (408), a grinding stone (409) and a mounting shell (410), the motor (408) is mounted at the bottom of the housing (401), the output end of the motor (408) penetrates into the end of the housing (401) to be coaxially connected with the grinding stone (409), the grinding stone (409) is shaped and is arranged in a manner of adapting to a heat conducting arc plate (405), and a plurality of fixing pipes (419) are arranged on the heat conducting arc plate (405); the utility model discloses a grinding stone, including installation shell (410), baffle (403), install shell (410), the tip that grindstone (409) top axle head penetrated installation shell (410) is equipped with second gear (411), one side meshing of second gear (411) is connected with third gear (412), and the diameter of second gear (411) is greater than the diameter of third gear (412), the top coaxial coupling of third gear (412) has fourth gear (413), the top and the baffle (403) of fourth gear (413) rotate to be connected, fourth gear (413) are connected with first gear (407) meshing, and the diameter of fourth gear (413) is greater than the diameter of first gear (407).

4. The biomass pyrolysis oil production device according to claim 1, wherein a heater (414) is arranged at the top of the shell (401), an input port of the heater (414) is in fluid conduction with the gas pipeline (3), an air outlet of the heater (414) is in fluid conduction with the U-shaped cavity (402), a thermometer (8) is arranged on the gas pipeline (3), and the thermometer (8) is electrically connected with the heater (414).

5. The biomass pyrolysis oil production device according to claim 1, wherein an opening is formed in the top of the housing (401), and a closing door (415) adapted to the opening is hinged to the housing (401).

6. A biomass pyrolysis oil production device according to claim 3, wherein a chute (416) is arranged in the bottom wall of the housing (401), the chute (416) is in fluid communication with the bottom end of the fixed pipe (419), a discharge pipe (417) matched with the chute (416) is arranged at the bottom end of the housing (401), and the bottom end of the discharge pipe (417) is in fluid communication with the feed inlet of the pyrolysis reactor (1).

7. The biomass pyrolysis oil production device according to claim 1, wherein a filter screen (418) is installed in a communication hole between the upper chamber of the shell (401) and the U-shaped chamber (402).

8. A biomass pyrolysis oil production device according to claim 3, wherein a scrubbing brush (420) adapted to the filtering holes (404) is fixedly connected to one side of the top shaft end of the grinding stone (409).

9. The biomass pyrolysis oil production device according to claim 1, wherein a collecting box (2) is arranged at a discharge port at the bottom of the pyrolysis reaction furnace (1), one side of the pyrolysis reaction furnace (1) is detachably connected with an inert gas input device (5), an air outlet at the other side of the pyrolysis reaction furnace (1) is detachably connected with a cyclone separator (6), a discharge port at the bottom of the cyclone separator (6) is in fluid communication with the collecting box (2), and an air outlet of the cyclone separator (6) is in fluid communication with an air inlet of an air condenser (7).