Pressurized and sealed biomass gasification feeding device with crushing function

Abstract

The invention discloses a pressurized and sealed biomass gasification feeding device with a crushing function, and relates to the technical field of gasification furnace feeding, the device comprises a feeding hopper module, a first conveying cylinder, a second conveying cylinder and a connecting cylinder, the feeding hopper module is connected with the first conveying cylinder, the first conveying cylinder is connected with a sealing valve box, and the second conveying cylinder is connected with the connecting cylinder. The sealing valve box is connected with a connecting cylinder, the connecting cylinder is connected with a second conveying cylinder, the second conveying cylinder is connected with the biomass gasifier, a sealing valve is arranged in the sealing valve box, and a sealing pipeline is arranged on the side wall of the sealing valve box in a penetrating mode. In order to solve the problem of reverse channeling of synthesis gas in an existing biomass gasification feeding device, a sealing pressurization mode is adopted to seal the side end of the valve box, a strand of sealing gas is introduced and used for providing pressure for biomass feeding, and then it is guaranteed that a certain pressure exists in the biomass feeding device through the feeding sealing valve, so that the biomass gasification feeding device is stable in feeding. And reverse channeling of the synthesis gas in the gasification furnace is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of gasifier feeding, in particular to a pressurized sealed biomass gasification feeding device with a crushing function. Background Art

[0002] Biomass gasification is a technology that converts solid biomass materials (such as wood, crop residues, animal and plant waste, plant fibers, etc.) into effective gases, usually including hydrogen, carbon monoxide and methane, under high temperature, oxygen-free or oxygen-deficient conditions.

[0003] Due to the slightly positive pressure in the gasifier, the generated synthesis gas carries the high-temperature ash and flows to the low-pressure area. The existing biomass feeding device, under normal pressure, only takes into account the low density and poor circulation of biomass raw materials, thereby solving the problems of bridging, arching, blockage, etc. that occur when feeding biomass raw materials. As for the problem of a series of safety accidents caused by the backflow of synthesis gas to the feeding device, a few feeding devices also add a one-way plug plate at the connection port between the feeding device and the gasifier under normal pressure. This way of solving the problem not only fails to solve the problem of backflow of synthesis gas, but also brings about the problem of poor feeding and blockage.

[0004] Based on this, a pressurized sealed biomass gasification feeding device with a crushing function is now provided, which can eliminate the disadvantages of the existing devices. Summary of the invention

[0005] The object of the present invention is to provide a pressurized sealed biomass gasification feeding device with a crushing function to solve the shortcomings of the current product in the background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A pressurized sealed biomass gasification feeding device with a crushing function comprises a feeding hopper module, a first conveying cylinder, a second conveying cylinder and a connecting cylinder, wherein the feeding hopper module is connected to the first conveying cylinder, the first conveying cylinder is connected to a sealing valve box, the sealing valve box is connected to a connecting cylinder, the connecting cylinder is connected to the second conveying cylinder, the second conveying cylinder is connected to a biomass gasifier, a sealing valve is arranged in the sealing valve box, a sealing pipe is arranged through the side wall of the sealing valve box, a gas cylinder is connected to the other end of the sealing pipe, a gas flow meter is arranged on the sealing pipe, a pressure gauge and a carbon monoxide alarm are arranged on the side wall of the connecting straight pipe between the first conveying cylinder and the sealing valve box and the side wall of the connecting cylinder, an auger conveyor is arranged in the first conveying cylinder, and a variable pitch auger conveyor is arranged in the second conveying cylinder.

[0008] On the basis of the above technical solution, the present invention also provides the following optional technical solution:

[0009] In an optional solution: the feed hopper module includes a first fixed cylinder, a second fixed cylinder, a third fixed cylinder, a first scraper assembly, a crushing assembly, and a second scraper assembly; the first fixed cylinder, the second fixed cylinder, and the third fixed cylinder are all fixedly connected to mounting seats on their circumferences; a crusher and a first guide ring are provided at the inlet of the first fixed cylinder; a first gear ring is connected between the first fixed cylinder and the second fixed cylinder via a bearing; a second gear ring is connected between the second fixed cylinder and the third fixed cylinder via a bearing; and a gate valve is provided on the third fixed cylinder;

[0010] The crushing assembly is disposed in the second fixed cylinder and is used to crush the incompletely crushed biomass;

[0011] The first scraper assembly is disposed in the first fixed cylinder and is used to clean the crushing assembly;

[0012] The second scraper assembly is arranged in the second fixed cylinder and is used for cleaning the inner wall of the second fixed cylinder.

[0013] In an optional scheme: the crushing assembly includes a second guide ring and a rolling roller, the second guide ring is fixedly connected to the inner side wall of the first gear ring, the second guide ring is provided with an inclined surface, the lower surface of the second guide ring is fixedly connected to the second fixed ring, the second fixed ring is connected to the second rotating shaft through a bearing, the second rotating shaft is fixedly connected to the rolling roller, one end of the second rotating shaft is fixedly connected to the first friction wheel, the inner side wall of the second fixed cylinder is fixedly connected to the friction ring, the friction ring abuts against the first friction wheel, and a screen is provided under the rolling roller.

[0014] In an optional scheme: a first fixed ring is fixedly connected to the inner wall of the second fixed cylinder, a plurality of fixed rods are fixedly connected to the first fixed ring, a vibrating ring is slidably connected through the plurality of fixed rods, the vibrating ring is fixedly connected to the screen, a spring is fixedly connected between the vibrating ring and the first fixed ring, protrusions are provided on the lower surface of the second fixed ring and the upper surface of the vibrating ring, and the protrusions on the lower surface of the second fixed ring and the upper surface of the vibrating ring are staggered.

[0015] In an optional scheme: the first scraper assembly includes a mounting frame and a second scraper, the inner wall of the first fixed cylinder is fixedly connected to the second scraper via the mounting frame, the second scraper is provided with an inclined surface, the second scraper inclined surface is fixedly connected to two symmetrical mounting blocks, a reciprocating screw is connected between the two mounting blocks via a bearing, a guide rod is fixedly connected between the two mounting blocks, a scraper block is threadedly connected to the reciprocating screw, the scraper block abuts against the second scraper inclined surface, the scraper block and the guide rod are slidably connected, one end of the reciprocating screw is fixedly connected to a second friction wheel, and the second friction wheel abuts against the inclined surface of the second guide ring.

[0016] In an optional solution: the second scraper assembly includes a rotating ring and a first scraper, the inner side wall of the second gear ring is fixedly connected with the rotating ring, the rotating ring is fixedly connected with the first scraper, and the first scraper abuts against the inner side wall of the second fixed cylinder.

[0017] In an optional solution: several of the mounting seats are connected to a first rotating shaft via bearings, the first rotating shaft is fixedly connected to a first gear and a second gear, the first gear is meshed with the second gear ring, the second gear is meshed with the first gear ring, one of the mounting seats is fixedly connected to a motor, and the output end of the motor is fixedly connected to the first rotating shaft.

[0018] In an optional solution: a vibrator is provided on the outer side wall of the second fixed cylinder.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention aims at the problem of synthesis gas backflow in the existing biomass gasification feeding device. A sealing gas is introduced into the side end of the sealing valve box in a sealed pressurized manner to provide pressure for biomass feeding, and then a certain pressure is ensured inside the biomass feeding device through a feeding sealing valve to prevent the synthesis gas in the gasifier from backflowing.

[0021] 2. The present invention crushes the biomass raw materials entering the feed hopper module 1 through a crushing assembly, which can prevent the biomass raw materials from bridging and arching in the pipeline, causing blockage. On the other hand, when the raw materials enter the gasifier, they can be fully treated at high temperature to improve the gasification efficiency of the biomass materials.

[0022] 3. The present invention reduces the adhesion of biomass materials to the second fixed cylinder, the rolling roller, and the second scraper through the first scraper assembly and the second scraper assembly, thereby reducing the loss of materials and improving the gasification efficiency of biomass materials.

[0023] 4. The two screw feeders of the present invention are inclined, and the angle formed with the ground is in the range of 15°-20°, so that the biomass can easily enter the gasifier.

[0024] 5. The feed sealing valve of the present invention is a double-axis sealing valve, the two axes rotate inwardly towards each other, the rotation frequency is 40-80Hz, the rotation of the blades on the axis can play the role of sealing the gas, and the two axes in the feed sealing valve can be reversed to prevent biomass from clogging the feed sealing valve and damaging the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention.

[0026] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0027] Figure 3 This is a first viewing angle diagram of the feed hopper module of the present invention.

[0028] Figure 4 This is a second viewing angle view of the feed hopper module of the present invention.

[0029] Figure 5 It is a schematic diagram of the internal structure of the feed hopper module of the present invention.

[0030] Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle.

[0031] Figure 7 For the present invention Figure 5 Enlarged view of point B in the middle.

[0032] Figure 8 It is a schematic structural diagram of the first scraper assembly of the present invention.

[0033] Notes on reference numerals: 1. feed hopper module, 2. first conveying cylinder, 3. pressure gauge, 4. sealing valve box, 5. sealing pipeline, 6. second conveying cylinder, 7. connecting cylinder, 8. carbon monoxide alarm, 9. sealing valve, 10. auger conveyor, 11. first fixed cylinder, 12. second fixed cylinder, 13. third fixed cylinder, 14. mounting seat, 15. first guide ring, 16. second guide ring, 17. first gear ring, 18. second gear ring, 19. vibrator, 20. first gear, 21. first rotating shaft, 22. second gear, 23. rotating ring, 24. motor, 25 crusher, 26 first scraper, 27 grinding roller, 28 screen, 29 vibration ring, 30 first fixed ring, 31 fixed rod, 32 second rotating shaft, 33 first friction wheel, 34 friction ring, 35 second fixed ring, 36 bump, 37 mounting frame, 38 scraper, 39 second friction wheel, 40 reciprocating screw, 41 mounting block, 42 ​​guide rod, 43 first scraper assembly, 44 crushing assembly, 45 second scraper assembly, 46 scraper block, 47 variable pitch dragon conveyor, 48 gas flow meter, 49 gas cylinder. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0035] In one embodiment, Figure 1-Figure 8As shown, a pressurized sealed biomass gasification feeding device with a crushing function includes a feeding hopper module 1, a first conveying cylinder 2, a second conveying cylinder 6, and a connecting cylinder 7. The feeding hopper module 1 is connected to the first conveying cylinder 2, the first conveying cylinder 2 is connected to a sealing valve box 4, the sealing valve box 4 is connected to a connecting cylinder 7, the connecting cylinder 7 is connected to the second conveying cylinder 6, the second conveying cylinder 6 is connected to a biomass gasifier, a sealing valve 9 is arranged in the sealing valve box 4, a sealing pipe 5 is arranged through the side wall of the sealing valve box 4, the other end of the sealing pipe 5 is connected to a gas cylinder 49, a gas flow meter 48 is arranged on the sealing pipe 5, a pressure gauge 3 and a carbon monoxide alarm 8 are arranged on the side wall of the connecting straight pipe between the first conveying cylinder 2 and the sealing valve box 4 and the side wall of the connecting cylinder 7, a auger conveyor 10 is arranged in the first conveying cylinder 2, and a variable pitch auger conveyor 47 is arranged in the second conveying cylinder 6.

[0036] When using the device, first open the sealing valve 9, the auger conveyor 10, and the variable pitch dragon conveyor 47, and introduce the sealing gas through the gas cylinder 49 and the sealing pipe 5 so that the pressure gauge 3 installed on the side of the upper and lower connecting pipes of the sealing valve box 4 forms a pressure difference, and the pressure difference is 20-30kpa. It is required that the reading of the lower pressure gauge 3 is higher than the reading of the pressure gauge 3 installed on the upper side, so that the biomass feeding device is in a positive pressure state, and the biomass is put into the feeding hopper module 1;

[0037] Turning on the vibrator 19 can prevent the biomass raw material from having problems such as bridging and arching in the second fixed cylinder 12, which may cause poor feeding.

[0038] The gas flow meter 48 is used to monitor the sealing gas flow.

[0039] The crushed biomass raw material is transported from the feed hopper module 1 to the sealing valve box 4 via the auger conveyor 10 in the first conveying cylinder 2, and a sealing gas is introduced from the gas cylinder 49 and the sealing pipe 5 to provide pressure to the biomass feeding device, and can also be used as a carrying gas for the biomass raw material, so that the biomass raw material can smoothly enter the gasification furnace. The biomass raw material passes through the sealing valve 9, and the sealing valve 9 is a double-axis sealing valve. The two axes rotate inwardly toward each other, and the rotation of the blades on the axis can play the role of sealing gas. The two axes in the sealing valve 9 can be reversed to prevent the biomass from being blocked in the feed sealing valve mounting seat 14 and damaging the equipment.

[0040] The biomass raw material enters the second conveying cylinder 6 from the sealing valve 9. The pitch of the variable pitch dragon conveyor 47 in the second conveying cylinder 6 gradually decreases on the side close to the gasifier. This is to allow the biomass raw material to accumulate at the rear end of the first gear 20 to prevent the synthesis gas in the gasifier from flowing back to the feed inlet.

[0041] In one embodiment, the feed hopper module 1 includes a first fixed cylinder 11, a second fixed cylinder 12, a third fixed cylinder 13, a first scraper assembly 43, a crushing assembly 44, and a second scraper assembly 45. The first fixed cylinder 11, the second fixed cylinder 12, and the third fixed cylinder 13 are all fixedly connected to the mounting seat 14 on their circumferences. A crusher 25 and a first guide ring 15 are provided at the entrance of the first fixed cylinder 11. A first gear ring 17 is connected between the first fixed cylinder 11 and the second fixed cylinder 12 through a bearing. A second gear ring 18 is connected between the second fixed cylinder 12 and the third fixed cylinder 13 through a bearing. The third fixed cylinder 13 is provided with a gate valve.

[0042] The crushing assembly 44 is disposed in the second fixed cylinder 12 and is used to crush the incompletely crushed biomass;

[0043] The first scraper assembly 43 is disposed in the first fixed cylinder 11 and is used to clean the crushing assembly 44;

[0044] The second scraper assembly 45 is disposed in the second fixed cylinder 12 and is used for cleaning the inner wall of the second fixed cylinder 12 .

[0045] Start the crusher 25 to crush the biomass raw materials entering the feed hopper module 1. On the one hand, it can prevent the biomass raw materials from bridging and arching in the pipeline, causing blockage. On the other hand, when the raw materials enter the gasifier, they can be fully treated at high temperature to improve the gasification efficiency of the biomass materials.

[0046] In one embodiment, the crushing assembly 44 includes a second guide ring 16 and a rolling roller 27. The second guide ring 16 is fixedly connected to the inner wall of the first gear ring 17. The second guide ring 16 is provided with an inclined surface. The lower surface of the second guide ring 16 is fixedly connected to the second fixed ring 35. The second fixed ring 35 is connected to the second rotating shaft 32 through a bearing. The second rotating shaft 32 is fixedly connected to the rolling roller 27. One end of the second rotating shaft 32 is fixedly connected to the first friction wheel 33. The inner wall of the second fixed cylinder 12 is fixedly connected to the friction ring 34. The friction ring 34 abuts against the first friction wheel 33. A screen 28 is provided below the rolling roller 27.

[0047] The motor 24 is started, and the motor 24 drives the first rotating shaft 21 to rotate, and the first rotating shaft 21 drives the second gear 22 to rotate. The rotation of the second gear 22 drives the first gear ring 17 to rotate, and the rotation of the first gear ring 17 drives the second guide ring 16 to rotate, and the second guide ring 16 drives the second fixed ring 35 to rotate, and the second fixed ring 35 drives the second rotating shaft 32 to revolve, and the second rotating shaft 32 drives the rolling roller 27 to rotate, and the biomass material that has not been crushed in place above the screen 28 is crushed and crushed, and the crushed material can fall through the screen 28. While the rolling roller 27 revolves, the first friction wheel 33 and the friction ring 34 cooperate to rotate, and the first friction wheel 33 drives the second rotating shaft 32 to rotate, and the second rotating shaft 32 drives the rolling roller 27 to rotate, so that the rolling roller 27 can realize rolling crushing of the material above the screen 28, thereby improving the crushing effect of the material.

[0048] In one embodiment, a first fixing ring 30 is fixedly connected to the inner wall of the second fixing cylinder 12, a plurality of fixing rods 31 are fixedly connected to the first fixing ring 30, a vibration ring 29 is slidably connected through the plurality of fixing rods 31, the vibration ring 29 is fixedly connected to the screen 28, a spring is fixedly connected between the vibration ring 29 and the first fixing ring 30, protrusions 36 are provided on the lower surface of the second fixing ring 35 and the upper surface of the vibration ring 29, and the protrusions 36 on the lower surface of the second fixing ring 35 and the upper surface of the vibration ring 29 are alternately distributed.

[0049] When the second fixed ring 35 rotates, the protrusion 36 below the second fixed ring 35 cooperates with the protrusion 36 above the vibration ring 29. When the protrusion 36 below the second fixed ring 35 is opposite to the protrusion 36 above the vibration ring 29, the vibration ring 29 is pressed downward. When the protrusion 36 below the second fixed ring 35 is offset from the protrusion 36 above the vibration ring 29, the vibration ring 29 is reset under the action of the spring, realizing the up and down reciprocating vibration of the screen 28. On the one hand, the vibration makes the material on the screen 28 continuously collide with the rolling roller 27. On the other hand, the vibration can prevent the material from clogging the screen 28.

[0050] In one embodiment, the first scraper assembly 43 includes a mounting frame 37 and a second scraper 38. The inner wall of the first fixed cylinder 11 is fixedly connected to the second scraper 38 through the mounting frame 37. The second scraper 38 is provided with a slope. The slope of the second scraper 38 is fixedly connected to two symmetrical mounting blocks 41. A reciprocating screw 40 is connected between the two mounting blocks 41 through a bearing. A guide rod 42 is fixedly connected between the two mounting blocks 41. A scraper block 46 is threadedly connected to the reciprocating screw 40. The scraper block 46 abuts against the slope of the second scraper 38. The scraper block 46 is slidably connected to the guide rod 42. A second friction wheel 39 is fixedly connected to one end of the reciprocating screw 40. The second friction wheel 39 abuts against the slope of the second guide ring 16.

[0051] The second scraper 38 is released from the rolling roller 27. When the rolling roller 27 rotates and passes through the second scraper 38, the second scraper 38 can scrape off the material attached to the surface of the rolling roller 27. The second guide ring 16 rotates and drives the second friction wheel 39 to rotate. The rotation of the second friction wheel 39 drives the reciprocating screw 40 to rotate. The rotation of the reciprocating screw 40 drives the scraper block 46 to move back and forth, pushing the material on the surface of the second scraper 38 off.

[0052] In one embodiment, the second scraper assembly 45 includes a rotating ring 23 and a first scraper 26 . The inner wall of the second gear ring 18 is fixedly connected to the rotating ring 23 . The rotating ring 23 is fixedly connected to the first scraper 26 . The first scraper 26 abuts against the inner wall of the second fixed cylinder 12 .

[0053] The first rotating shaft 21 drives the first gear 20 to rotate. The rotation of the first gear 20 drives the rotating ring 23 to rotate. The rotation of the rotating ring 23 drives the first scraper 26 to rotate. The first scraper 26 rotates to scrape off the materials attached to the inner wall of the second fixed cylinder 12 .

[0054] In one embodiment, several mounting seats 14 are connected to a first rotating shaft 21 through bearings, the first rotating shaft 21 is fixedly connected to a first gear 20 and a second gear 22, the first gear 20 is meshed with the second gear ring 18, and the second gear 22 is meshed with the first gear ring 17, one of the mounting seats 14 is fixedly connected to a motor 24, and the output end of the motor 24 is fixedly connected to the first rotating shaft 21.

[0055] In one embodiment, a vibrator 19 is disposed on the outer side wall of the second fixing cylinder 12 .

[0056] The above embodiment discloses a pressurized sealed biomass gasification feeding device with a crushing function, and its specific working principle and process are as follows:

[0057] S1: When using the device, first open the sealing valve 9, the auger conveyor 10, and the variable pitch dragon conveyor 47, put the biomass into the feed hopper module 1, and introduce the sealing gas through the gas cylinder 49 and the sealing pipe 5 so that the pressure gauge 3 installed on the side of the upper and lower connecting pipes of the sealing valve box 4 forms a pressure difference, and the pressure difference is 20-30kpa. It is required that the reading of the lower pressure gauge 3 is higher than the reading of the pressure gauge 3 installed on the upper side, so that the biomass feeding device is in a positive pressure state. At the same time, this sealing gas can be used as a carrying gas for the biomass raw material, so that the biomass raw material can smoothly enter the gasifier;

[0058] Turning on the vibrator 19 can prevent the biomass raw material from having problems such as bridging and arching in the second fixed cylinder 12, which may cause poor feeding.

[0059] The crushed biomass raw material is transported from the feed hopper module 1 to the sealing valve box 4 via the auger conveyor 10 in the first conveying cylinder 2, and a sealing gas is introduced from the sealing pipe 5 to provide pressure to the biomass feeding device. The biomass raw material passes through the sealing valve 9. The sealing valve 9 is a double-axis sealing valve. The two axes rotate inwardly towards each other. The rotation of the blades on the axis can play the role of sealing gas. The two axes in the sealing valve 9 can be reversed to avoid clogging of the biomass in the feed sealing valve 9 and damage to the equipment.

[0060] The biomass raw material enters the second conveying cylinder 6 from the sealing valve 9. The pitch of the variable pitch dragon conveyor 47 in the second conveying cylinder 6 gradually decreases on the side close to the gasifier. This is to allow the biomass raw material to accumulate at the rear end of the first gear 20 to prevent the synthesis gas in the gasifier from flowing back to the feed inlet.

[0061] The third fixed cylinder 13 is equipped with a gate valve, and the gate valve can be adjusted during the feeding process to control the amount of biomass feeding, so as to achieve the purpose of smooth feeding and regulating material flow.

[0062] The sealing gas can be an inert gas such as nitrogen and carbon dioxide.

[0063] The sealing valve 9 is a double-axis sealing valve, the two axes rotate inwardly towards each other, and the rotation of the blades on the axes can play a role in sealing the gas. Both axes in the feed sealing valve can be reversed to prevent biomass from clogging the feed sealing valve and damaging the equipment.

[0064] The carbon monoxide alarm 8 is used to detect whether the synthesis gas in the gasifier is backflowing to the feeding device.

[0065] S2: Start the crusher 25, which crushes the biomass raw materials entering the feed hopper module 1. On the one hand, it prevents the biomass raw materials from bridging and arching in the pipeline, which leads to blockage. On the other hand, when the raw materials enter the gasifier, they can be fully treated with high temperature to improve the gasification efficiency of the biomass materials.

[0066] S3: Start the motor 24, the motor 24 drives the first rotating shaft 21 to rotate, the first rotating shaft 21 drives the second gear 22 to rotate, the second gear 22 drives the first gear ring 17 to rotate, the first gear ring 17 drives the second guide ring 16 to rotate, the second guide ring 16 drives the second fixed ring 35 to rotate, the second fixed ring 35 drives the second rotating shaft 32 to revolve, the second rotating shaft 32 drives the rolling roller 27 to rotate, and the biomass material that has not been crushed in place above the screen 28 is crushed, and the crushed material can fall through the screen 28;

[0067] While the rolling roller 27 revolves, the first friction wheel 33 and the friction ring 34 rotate in cooperation, the first friction wheel 33 drives the second rotating shaft 32 to rotate, and the second rotating shaft 32 drives the rolling roller 27 to rotate, so that the rolling roller 27 can roll and crush the material above the screen 28, thereby improving the crushing effect of the material;

[0068] When the second fixed ring 35 rotates, the protrusion 36 below the second fixed ring 35 cooperates with the protrusion 36 above the vibration ring 29. When the protrusion 36 below the second fixed ring 35 is opposite to the protrusion 36 above the vibration ring 29, the vibration ring 29 is pressed downward. When the protrusion 36 below the second fixed ring 35 is offset from the protrusion 36 above the vibration ring 29, the vibration ring 29 is reset under the action of the spring, realizing the up and down reciprocating vibration of the screen 28. On the one hand, the vibration makes the material on the screen 28 continuously collide with the rolling roller 27. On the other hand, the vibration can prevent the material from clogging the screen 28.

[0069] S4: At the same time, the first rotating shaft 21 drives the first gear 20 to rotate, the first gear 20 drives the rotating ring 23 to rotate, the rotating ring 23 drives the first scraper 26 to rotate, and the first scraper 26 rotates to scrape off the material attached to the inner wall of the second fixed cylinder 12;

[0070] S5: The second scraper 38 is released from the rolling roller 27. When the rolling roller 27 rotates and passes through the second scraper 38, the second scraper 38 can scrape off the material attached to the surface of the rolling roller 27. The second guide ring 16 rotates while driving the second friction wheel 39 to rotate. The rotation of the second friction wheel 39 drives the reciprocating screw 40 to rotate. The rotation of the reciprocating screw 40 drives the scraper block 46 to move back and forth, pushing the material on the surface of the second scraper 38 off.

[0071] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A pressurized sealed biomass gasification feeding device with a crushing function, characterized in that: The invention comprises a feed hopper module (1), a first conveying cylinder (2), a second conveying cylinder (6), and a connecting cylinder (7), wherein the feed hopper module (1) is connected to the first conveying cylinder (2), the first conveying cylinder (2) is connected to a sealing valve box (4), the sealing valve box (4) is connected to a connecting cylinder (7), the connecting cylinder (7) is connected to the second conveying cylinder (6), the second conveying cylinder (6) is connected to a biomass gasification furnace, a sealing valve (9) is arranged in the sealing valve box (4), and the sealing valve box (4) has a sealing valve (9) on the side thereof. A sealed pipe (5) is provided through the wall, the other end of the sealed pipe (5) is connected to a gas cylinder (49), a gas flow meter (48) is provided on the sealed pipe (5), a pressure gauge (3) and a carbon monoxide alarm (8) are provided on the side wall of the connecting straight pipe between the first conveying cylinder (2) and the sealed valve box (4) and the side wall of the connecting cylinder (7), a screw conveyor (10) is provided in the first conveying cylinder (2), and a variable pitch screw conveyor (47) is provided in the second conveying cylinder (6).

2. A pressurized sealed biomass gasification feeding device with a crushing function according to claim 1, characterized in that: The feed hopper module (1) comprises a first fixed cylinder (11), a second fixed cylinder (12), a third fixed cylinder (13), a first scraper assembly (43), a crushing assembly (44), and a second scraper assembly (45); the first fixed cylinder (11), the second fixed cylinder (12), and the third fixed cylinder (13) are all fixedly connected to a mounting seat (14) on their circumferential sides; a crusher (25) and a first guide ring (15) are provided at the entrance of the first fixed cylinder (11); a first gear ring (17) is connected between the first fixed cylinder (11) and the second fixed cylinder (12) via a bearing; a second gear ring (18) is connected between the second fixed cylinder (12) and the third fixed cylinder (13) via a bearing; and the third fixed cylinder (13) is provided with a gate valve; The crushing assembly (44) is arranged in the second fixed cylinder (12) and is used to crush the incompletely crushed biomass; The first scraper assembly (43) is arranged in the first fixed cylinder (11) and is used to clean the crushing assembly (44); The second scraper assembly (45) is arranged in the second fixed cylinder (12) and is used to clean the inner wall of the second fixed cylinder (12).

3. The pressurized sealed biomass gasification feeding device with a crushing function according to claim 2, characterized in that: The crushing assembly (44) comprises a second guide ring (16) and a rolling roller (27); the second guide ring (16) is fixedly connected to the inner wall of the first gear ring (17); the second guide ring (16) is provided with an inclined surface; the lower surface of the second guide ring (16) is fixedly connected to a second fixed ring (35); the second fixed ring (35) is connected to a second rotating shaft (32) via a bearing; the second rotating shaft (32) is fixedly connected to the rolling roller (27); one end of the second rotating shaft (32) is fixedly connected to a first friction wheel (33); the inner wall of the second fixed cylinder (12) is fixedly connected to a friction ring (34); the friction ring (34) abuts against the first friction wheel (33); and a screen (28) is provided below the rolling roller (27).

4. The pressurized sealed biomass gasification feeding device with a crushing function according to claim 3, characterized in that: The inner wall of the second fixed cylinder (12) is fixedly connected to a first fixed ring (30), the first fixed ring (30) is fixedly connected to a plurality of fixed rods (31), the plurality of fixed rods (31) penetrate and are slidably connected to a vibration ring (29), the vibration ring (29) is fixedly connected to the screen (28), a spring is fixedly connected between the vibration ring (29) and the first fixed ring (30), the lower surface of the second fixed ring (35) and the upper surface of the vibration ring (29) are both provided with protrusions (36), and the protrusions (36) on the lower surface of the second fixed ring (35) and the upper surface of the vibration ring (29) are staggered.

5. The pressurized sealed biomass gasification feeding device with a crushing function according to claim 2, characterized in that: The first scraper assembly (43) comprises a mounting frame (37) and a second scraper (38); the inner side wall of the first fixed cylinder (11) is fixedly connected with the second scraper (38) via the mounting frame (37); the second scraper (38) is provided with an inclined surface; the inclined surface of the second scraper (38) is fixedly connected with two symmetrical mounting blocks (41); a reciprocating screw (40) is connected between the two mounting blocks (41) via a bearing; a guide rod (42) is fixedly connected between the two mounting blocks (41); a scraper block (46) is threadedly connected to the reciprocating screw (40); the scraper block (46) abuts against the inclined surface of the second scraper (38); the scraper block (46) is slidably connected to the guide rod (42); one end of the reciprocating screw (40) is fixedly connected with a second friction wheel (39); the second friction wheel (39) abuts against the inclined surface of the second guide ring (16).

6. The pressurized sealed biomass gasification feeding device with a crushing function according to claim 2, characterized in that: The second scraper assembly (45) comprises a rotating ring (23) and a first scraper (26); the inner wall of the second gear ring (18) is fixedly connected to the rotating ring (23); the rotating ring (23) is fixedly connected to the first scraper (26); the first scraper (26) abuts against the inner wall of the second fixed cylinder (12).

7. The pressurized sealed biomass gasification feeding device with a crushing function according to claim 2, characterized in that: A plurality of the mounting seats (14) are connected to a first rotating shaft (21) via bearings; the first rotating shaft (21) is fixedly connected to a first gear (20) and a second gear (22); the first gear (20) is meshed with a second gear ring (18); the second gear (22) is meshed with a first gear ring (17); one of the mounting seats (14) is fixedly connected to a motor (24); an output end of the motor (24) is fixedly connected to the first rotating shaft (21).

8. The pressurized sealed biomass gasification feeding device with a crushing function according to claim 2, characterized in that: A vibrator (19) is provided on the outer side wall of the second fixed cylinder (12).

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