Vertical biomass cracking reaction hydrogen production device

Abstract

The invention provides a vertical biomass cracking reaction hydrogen production device, and relates to the field of biomass cracking reaction hydrogen production devices. The vertical biomass cracking reaction hydrogen production device comprises a pyrolysis mechanism, a filtering mechanism and a purifying mechanism, the front end of the pyrolysis mechanism is provided with a crushing mechanism, the pyrolysis mechanism comprises a first mounting frame, the inner wall of the first mounting frame is fixedly connected with a pyrolysis furnace, the upper end of the pyrolysis furnace is connected with a gas inlet pipe in a penetrating mode, and the gas inlet pipe is connected with a gas outlet pipe in a penetrating mode. The crushing mechanism comprises a crushing barrel, a feeding pipe is connected to the middle of the outer wall of one side of the crushing barrel in a penetrating mode, a sealing cover is hinged to the middle of the upper surface of the feeding pipe, and a material injection pipe is connected to the middle of the lower surface of the crushing barrel in a penetrating mode. According to the vertical biomass cracking reaction hydrogen production device provided by the invention, by arranging the filtering mechanism and the purifying mechanism, solid particles of hydrogen, carbon dioxide gas and hydrogen sulfide gas generated during pyrolysis of biomass materials are conveniently filtered, so that the purity of hydrogen is improved.

Description

Technical Field

[0001] The present invention relates to the field of biomass pyrolysis reaction hydrogen production devices, and particularly to a vertical biomass pyrolysis reaction hydrogen production device. Background Art

[0002] A vertical biomass pyrolysis reaction hydrogen production device is a device that uses biomass materials (such as straw, wood chips, agricultural waste, etc.) to produce hydrogen through thermochemical pyrolysis reactions. The core function of the vertical biomass pyrolysis reaction hydrogen production device is to convert biomass into hydrogen-rich gas, achieving the efficient utilization of renewable energy and carbon emission reduction.

[0003] However, most of the existing vertical biomass pyrolysis reaction hydrogen production devices on the market are not convenient for initially crushing the biomass raw materials input into the device, which may increase the energy required for the pyrolysis of biomass materials and may also cause uneven drying of the materials, reducing the hydrogen production efficiency. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the present invention provides a vertical biomass pyrolysis reaction hydrogen production device, which solves the problem that most of the existing vertical biomass pyrolysis reaction hydrogen production devices on the market are not convenient for initially crushing the biomass raw materials input into the device, which may increase the energy required for the pyrolysis of biomass materials and may also cause uneven drying of the materials, reducing the hydrogen production efficiency.

[0006] (II) Technical Solutions

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions: A vertical biomass pyrolysis reaction hydrogen production device includes a pyrolysis mechanism, a filtering mechanism, and a purification mechanism. A crushing mechanism is provided at the front end of the pyrolysis mechanism. The pyrolysis mechanism includes a first mounting frame, and a pyrolysis furnace is fixedly connected to the inner wall of the first mounting frame. An intake pipe is connected through the upper end of the pyrolysis furnace. The crushing mechanism includes a crushing cylinder, and a feed pipe is connected through the middle of the outer wall on one side of the crushing cylinder. A sealing cover is hingedly connected to the middle of the upper surface of the feed pipe. A feeding pipe is connected through the middle of the lower surface of the crushing cylinder, and the lower end of the feeding pipe is connected through to the pyrolysis furnace. A servo motor is provided in the middle of the upper surface of the crushing cylinder, and the output shaft of the servo motor penetrates through the crushing cylinder to the inside of the crushing cylinder and is fixedly connected to a driving gear;

[0008] The upper part of the inner wall of the crushing cylinder is rotatably connected with a turntable. Four corners of the upper surface of the turntable are fixedly connected with connecting rods respectively. The upper ends of the connecting rods are fixedly connected with toothed rings respectively. The middle part of the upper surface of the turntable is rotatably connected with three rotating shafts. The lower ends of the outer walls of the rotating shaft rods are fixedly connected with a plurality of crushing teeth respectively. The filtering mechanism includes a second mounting frame. The inner wall of the second mounting frame is fixedly connected with a filtering cylinder. The purification mechanism includes a purification box. The rear end of the upper surface of the purification box is connected with an air outlet pipe in a penetrating manner. An air pump is arranged at the front end of the upper surface of the purification box. The air inlet of the air pump is fixedly connected with a connecting pipe;

[0009] Through the above technical solution, by the cooperation of the servo motor provided with the driving gear, the turntable provided with the toothed ring, the rotating shaft provided with the driven gear and a plurality of crushing teeth inside the crushing mechanism, it is convenient to fully crush the biomass material and the catalyst injected into the crushing cylinder, reduce the energy required for the pyrolysis of the biomass material to a certain extent, and make the drying of the material uniform, improving the hydrogen production efficiency.

[0010] Preferably, the upper ends of the rotating shafts are fixedly connected with driven gears respectively. The driven gears are meshed with the toothed rings respectively. The driving gears are meshed with the driven gears respectively;

[0011] Through the above technical solution, the driving gear is rotated by the servo motor, and then the driven gear provided with the rotating shaft is rotated, so that the toothed ring drives the turntable connected thereto through the connecting rod to rotate, so that the crushing teeth arranged outside the rotating shaft rotate, and the biomass material and the catalyst placed inside the crushing cylinder are fully crushed.

[0012] Preferably, the upper end of the filtering cylinder is connected with an air inlet pipe in a penetrating manner. The middle part of the inner wall of the filtering cylinder is fixedly connected with a metal sintered filter screen;

[0013] Through the above technical solution, the solid particles generated during the pyrolysis of the biomass material are filtered by the metal sintered filter screen.

[0014] Preferably, the upper part of the rear outer wall of the purification box is connected with a liquid inlet valve in a penetrating manner. The lower part of the rear outer wall of the purification box is connected with a liquid discharge valve in a penetrating manner;

[0015] Through the above technical solution, potassium hydroxide solution is injected into the purification box through the liquid inlet valve, and the lower end of the exhaust pipe is immersed in the potassium hydroxide solution to absorb the carbon dioxide gas and hydrogen sulfide gas in the hydrogen in the exhaust pipe, so that the hydrogen can be purified and discharged and collected from the air outlet pipe, and the purified potassium hydroxide solution can be conveniently discharged through the liquid discharge valve.

[0016] Preferably, the four corners of the lower surface of the purification box are fixedly connected with support legs respectively. The lower end of the connecting pipe is connected with the lower part of the rear outer wall of the filtering cylinder in a penetrating manner;

[0017] Through the above technical solution, the stability of the purification tank is improved by the support legs, and the hydrogen gas containing impurities inside the filter cartridge is pumped into the purification tank through the connecting pipe by the air pump.

[0018] Preferably, the air outlet of the air pump is fixedly connected with an exhaust pipe, and the lower end of the exhaust pipe is connected to the purification tank in a penetrating manner;

[0019] Through the above technical solution, the hydrogen gas containing impurities is injected into the potassium hydroxide solution arranged in the purification tank through the exhaust pipe by the air pump.

[0020] Preferably, an observation window is arranged at the rear end of the outer wall of one side of the purification tank;

[0021] Through the above technical solution, it is convenient for the staff to penetrate the capacity of the potassium hydroxide solution through the observation window, and the color change of the potassium hydroxide solution can be penetrated, so as to preliminarily judge the concentration of the potassium hydroxide solution, and then it is convenient for the staff to replace the potassium hydroxide solution in time.

[0022] Preferably, an electric heating mesh is arranged on the inner wall of the pyrolysis furnace, and the lower surface of the pyrolysis furnace is fixedly connected with a discharge plate through a plurality of bolts;

[0023] Through the above technical solution, the biomass material inside the pyrolysis furnace can be pyrolyzed by heating with the electric heating mesh, and it is convenient for the staff to discharge the used catalyst and biomass material inside the pyrolysis furnace through the discharge plate.

[0024] (III) Beneficial effects

[0025] The present invention provides a vertical biomass cracking reaction hydrogen production device. It has the following beneficial effects:

[0026] 1. The present invention provides a vertical biomass cracking reaction hydrogen production device. By the combined use of a servo motor with a driving gear arranged inside the crushing mechanism, a turntable with a gear ring, a rotating shaft with a driven gear and a plurality of crushing teeth, it is convenient to fully crush the biomass material and the catalyst injected into the crushing cylinder, reduce the energy required for the pyrolysis of the biomass material to a certain extent, and make the drying of the material uniform, thereby improving the hydrogen production efficiency.

[0027] 2. The present invention provides a vertical biomass cracking reaction hydrogen production device. By arranging a filtering mechanism and a purification mechanism, it is convenient to filter the solid particles, carbon dioxide gas and hydrogen sulfide gas generated when the biomass material is pyrolyzed, thereby improving the purity of hydrogen. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the main structure from the first perspective of the present invention;

[0029] Figure 2Schematic diagram of the main structure from the second perspective of the present invention;

[0030] Figure 3 Schematic diagram of the main structure from the third perspective of the present invention;

[0031] Figure 4 Schematic diagram of the structure of the present invention;

[0032] Figure 5 Schematic diagram of the structure of the present invention;

[0033] Figure 6 Schematic diagram of the structure of the present invention.

[0034] Among them, 1. Crushing mechanism; 101. Crushing cylinder; 102. Feed pipe; 103. Sealing cover; 104. Injection pipe; 105. Turntable; 106. Gear ring; 107. Connecting rod; 108. Servo motor; 109. Driving gear; 110. Rotating shaft; 111. Driven gear; 112. Crushing teeth;

[0035] 2. Pyrolysis mechanism; 201. Pyrolysis furnace; 202. First mounting frame; 203. Discharge plate; 204. Intake pipe;

[0036] 3. Filtration mechanism; 301. Filter cylinder; 302. Second mounting frame; 303. Metal sintered filter screen;

[0037] 4. Purification mechanism; 401. Purification box; 402. Support leg; 403. Inlet valve; 404. Drain valve; 405. Outlet pipe; 406. Air pump; 407. Exhaust pipe; 408. Connecting pipe; 409. Observation window. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] Such as Figure 1-6As shown in the figure, an embodiment of the present invention provides a vertical biomass pyrolysis reaction hydrogen production device, which includes a pyrolysis mechanism 2, a filtering mechanism 3, and a purification mechanism 4. A crushing mechanism 1 is arranged at the front end of the pyrolysis mechanism 2. The pyrolysis mechanism 2 includes a first mounting frame 202, and a pyrolysis furnace 201 is fixedly connected to the inner wall of the first mounting frame 202. An air inlet pipe 204 penetrates through and is connected to the upper end of the pyrolysis furnace 201. The crushing mechanism 1 includes a crushing cylinder 101. A feed pipe 102 penetrates through and is connected to the middle of the outer wall of one side of the crushing cylinder 101. A sealing cover 103 is hingedly connected to the middle of the upper surface of the feed pipe 102. A feeding pipe 104 penetrates through and is connected to the middle of the lower surface of the crushing cylinder 101. The lower end of the feeding pipe 104 is connected to the pyrolysis furnace 201 in a penetrating manner. A servo motor 108 is arranged at the middle of the upper surface of the crushing cylinder 101. The output shaft of the servo motor 108 penetrates through the crushing cylinder 101 to the inside of the crushing cylinder 101 and is fixedly connected to a driving gear 109;

[0040] The upper part of the inner wall of the crushing cylinder 101 is rotatably connected to a turntable 105. Four corners of the upper surface of the turntable 105 are fixedly connected with connecting rods 107 respectively. The upper ends of the connecting rods 107 are fixedly connected with toothed rings 106 respectively. Three rotating shafts 110 are rotatably connected to the middle of the upper surface of the turntable 105. A plurality of crushing teeth 112 are fixedly connected to the lower ends of the outer walls of the rod bodies of the rotating shafts 110 respectively. The filtering mechanism 3 includes a second mounting frame 302, and a filtering cylinder 301 is fixedly connected to the inner wall of the second mounting frame 302. The purification mechanism 4 includes a purification box 401. An air outlet pipe 405 penetrates through and is connected to the rear end of the upper surface of the purification box 401. An air pump 406 is arranged at the front end of the upper surface of the purification box 401. The air inlet of the air pump 406 is fixedly connected with a connecting pipe 408;

[0041] By arranging the filtering mechanism 2 and the purification mechanism 4, it is convenient to filter the solid particles, carbon dioxide gas and hydrogen sulfide gas generated when the biomass material is pyrolyzed, thereby improving the purity of hydrogen.

[0042] The upper ends of the rotating shafts 110 are fixedly connected with driven gears 111 respectively. The driven gears 111 are respectively meshed with the toothed rings 106. The driving gear 109 is respectively meshed with the driven gears 111;

[0043] The driving gear 109 is rotated by the servo motor 108, and then the driven gears 111 provided with the rotating shafts 110 are rotated, so that the toothed ring 106 drives the turntable 105 connected thereto through the connecting rod 107 to rotate, so that the crushing teeth 112 arranged outside the rotating shaft 110 rotate, and the biomass material placed inside the crushing cylinder 101 is fully crushed.

[0044] The upper end of the filtering cylinder 301 is connected to the air inlet pipe 204 in a penetrating manner. A metal sintered filter screen 303 is fixedly connected to the middle of the inner wall of the filtering cylinder 301;

[0045] Filter the solid particles generated during the pyrolysis of biomass materials through the metal sintered filter screen 303.

[0046] The upper part of the outer wall at the rear end of the purification box 401 is connected through penetration with a liquid inlet valve 403, and the lower part of the outer wall at the rear end of the purification box 401 is connected through penetration with a liquid discharge valve 404;

[0047] Inject potassium hydroxide solution into the interior of the purification box 401 through the liquid inlet valve 403, and submerge the lower end of the absorption exhaust pipe 407 into the interior of the potassium hydroxide solution to absorb carbon dioxide and hydrogen sulfide gases in the hydrogen in the exhaust pipe 407, so that the hydrogen can be purified and discharged and collected from the air outlet pipe 405, and the purified potassium hydroxide solution can be conveniently discharged through the liquid discharge valve 404.

[0048] Four corners of the lower surface of the purification box 401 are fixedly connected with support legs 402, and the lower end of the connecting pipe 408 is connected through penetration with the lower part of the outer wall at the rear end of the filter cylinder 301;

[0049] Improve the stability of the purification box 401 through the support legs 402, and pump the hydrogen containing impurities inside the filter cylinder 301 into the purification box 401 through the connecting pipe 408 by means of an air pump 406.

[0050] The air outlet of the air pump 406 is fixedly connected with an exhaust pipe 407, and the lower end of the exhaust pipe 407 is connected through penetration with the purification box 401;

[0051] Inject the hydrogen containing impurities into the interior of the potassium hydroxide solution provided in the purification box 401 through the exhaust pipe 407 by means of the air pump 406.

[0052] An observation window 409 is provided at the rear end of one side outer wall of the purification box 401;

[0053] It is convenient for the staff to penetrate the capacity of the potassium hydroxide solution through the observation window 409, and the color change of the potassium hydroxide solution can be penetrated, and the concentration of the potassium hydroxide solution can be initially judged, so as to facilitate the staff to replace the potassium hydroxide solution in time.

[0054] An electric heating net is provided on the inner wall of the pyrolysis furnace 201, and the lower surface of the pyrolysis furnace 201 is fixedly connected with a discharge plate 203 through a plurality of bolts;

[0055] The biomass materials inside the pyrolysis furnace 201 can be pyrolyzed by heating through the electric heating net, and it is convenient for the staff to discharge the used catalyst and biomass materials inside the pyrolysis furnace 201 through the discharge plate 203.

[0056] Working principle: When using this vertical biomass pyrolysis reaction hydrogen production device, first, start the servo motor 108 to make the driving gear 109 rotate, and then make the driven gear 111 provided with the rotating shaft 110 rotate, so that the gear ring 106 drives the turntable 105 connected to it through the connecting rod 107 to rotate, so that the crushing teeth 112 arranged outside the rotating shaft 110 rotate. Secondly, open the sealing cover 103 to put the biomass material and the catalyst into the inside of the crushing cylinder 109, so as to fully break up the biomass material and the catalyst placed inside the crushing cylinder 101. At the same time, close the sealing cover 103. Thirdly, heat the biomass material inside the pyrolysis furnace 201 through the electric heating mesh to pyrolyze and generate hydrogen. Subsequently, filter the solid particles generated during the pyrolysis of the biomass material through the metal sintered filter mesh 303. Then, extract the hydrogen containing impurities inside the filter cylinder 301 from the connecting pipe 408 through the air pump 406, and inject it into the potassium hydroxide solution arranged in the purification tank 401 through the exhaust pipe 407, so that the potassium hydroxide solution absorbs carbon dioxide gas and hydrogen sulfide gas in the hydrogen. Finally, the purified hydrogen is discharged and collected through the air outlet pipe 405.

[0057] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vertical biomass pyrolysis reaction hydrogen production device, comprising a pyrolysis mechanism (2), a filtration mechanism (3) and a purification mechanism (4), characterized in that: A crushing mechanism (1) is provided at the front end of the pyrolysis mechanism (2). The pyrolysis mechanism (2) includes a first mounting frame (202), and a pyrolysis furnace (201) is fixedly connected to the inner wall of the first mounting frame (202). An air inlet pipe (204) is connected through the upper end of the pyrolysis furnace (201). The crushing mechanism (1) includes a crushing cylinder (101). A feed pipe (102) is connected through the middle of the outer wall on one side of the crushing cylinder (101). A sealing cover (103) is hingedly connected to the middle of the upper surface of the feed pipe (102). A feeding pipe (104) is connected through the middle of the lower surface of the crushing cylinder (101). The lower end of the feeding pipe (104) is connected through to the pyrolysis furnace (201). A servo motor (108) is provided in the middle of the upper surface of the crushing cylinder (101). The output shaft of the servo motor (108) penetrates through the crushing cylinder (101) into the interior of the crushing cylinder (101) and is fixedly connected to a driving gear (109). The upper part of the inner wall of the crushing cylinder (101) is rotatably connected to a turntable (105). Four corners of the upper surface of the turntable (105) are fixedly connected with connecting rods (107). The upper ends of the connecting rods (107) are fixedly connected with gear rings (106). Three rotating shafts (110) are rotatably connected to the middle of the upper surface of the turntable (105). A plurality of crushing teeth (112) are respectively fixedly connected to the lower ends of the outer walls of the rod bodies of the rotating shafts (110). The filtering mechanism (3) includes a second mounting frame (302), and a filtering cylinder (301) is fixedly connected to the inner wall of the second mounting frame (302). The purification mechanism (4) includes a purification box (401). An air outlet pipe (405) is connected through the rear end of the upper surface of the purification box (401). An air pump (406) is provided at the front end of the upper surface of the purification box (401). The air inlet of the air pump (406) is fixedly connected with a connecting pipe (408).

2. The vertical biomass pyrolysis reaction hydrogen production device according to claim 1, wherein: The upper ends of the rotating shafts (110) are respectively fixedly connected with driven gears (111). The driven gears (111) are respectively meshed with the gear rings (106). The driving gear (109) is respectively meshed with the driven gears (111).

3. The vertical biomass pyrolysis reaction hydrogen production device according to claim 1, characterized in that: The upper end of the filtering cylinder (301) is connected through to the air inlet pipe (204). A metal sintered filter screen (303) is fixedly connected to the middle of the inner wall of the filtering cylinder (301).

4. The vertical biomass pyrolysis reaction hydrogen production device according to claim 1, wherein: A liquid inlet valve (403) is connected through the upper part of the rear outer wall of the purification box (401). A liquid discharge valve (404) is connected through the lower part of the rear outer wall of the purification box (401).

5. The vertical biomass pyrolysis reaction hydrogen production device according to claim 1, characterized in that: Four corners of the lower surface of the purification box (401) are fixedly connected with support legs (402). The lower end of the connecting pipe (408) is connected through to the lower part of the rear outer wall of the filtering cylinder (301).

6. The vertical biomass pyrolysis reaction hydrogen production device according to claim 1, wherein: The air outlet of the air pump (406) is fixedly connected with an exhaust pipe (407). The lower end of the exhaust pipe (407) is connected through to the purification box (401).

7. The hydrogen production device by vertical biomass pyrolysis reaction according to claim 1, wherein: An observation window (409) is provided at the rear end of one side outer wall of the purification box (401).

8. A vertical biomass pyrolysis reaction hydrogen production device according to claim 1, characterized in that: The inner wall of the pyrolysis furnace (201) is provided with an electric heating network, and the lower surface of the pyrolysis furnace (201) is fixedly connected with a discharge plate (203) through a plurality of bolts.

Images