A drying device and process for preparing biochar

Abstract

The present invention relates to the technical field of carbon-based fertilizer drying, specifically a drying device for preparing biochar and a process thereof, including a support frame, a feed tray and a discharge tray, a spiral rod blade, a rotating connection device; a rotating bin, and a flipping device. The present invention realizes the transportation of biochar by setting the spiral rod blade to a switchable static and dynamic mode. When the spiral rod blade does not rotate, the flipping device is used to drive the rotating bin to rotate to achieve the problem of biochar accumulation at the feed port, thereby achieving the automatic laying of biochar and improving the uniformity of biochar drying. Combined with the flipping and vibration effects of the flipping device in the rotating bin, the biochar can be further shaken, thereby reducing the problem of biochar stickiness and achieving the purpose of improving the biochar drying effect. At the same time, the nature of the spiral rod blade transportation is used to facilitate the discharge of the dried biochar, thereby achieving automatic discharge of biochar and solving the problem of difficult discharge of the existing drying cylinder.

Description

Technical Field

[0001] The invention relates to the technical field of carbon-based fertilizer drying, and in particular to a drying device and a process thereof for preparing biochar. Background Art

[0002] The existing carbon-based fertilizer drying equipment has a relatively simple structural design and mostly adopts a single-drum co-current drying mode. During the drying process, the carbon-based fertilizer is dried only by the heat generated by the inner wall of the drying drum. When the amount of carbon-based fertilizer in the drying equipment is large, it cannot meet the drying requirements. In addition, biochar will agglomerate due to humidity. Simply relying on simple heating cannot effectively break up the agglomerated biochar, resulting in residual moisture in the biochar, affecting the quality of the biochar.

[0003] After searching, the Chinese patent publication number CN220062397U discloses a biomass charcoal-based fertilizer drying equipment, which belongs to the technical field of charcoal-based fertilizer drying. A biomass charcoal-based fertilizer drying equipment, including an equipment body and a transmission device, an end cover is provided on one side of the equipment body, a tail cover is provided on the end of the equipment body away from the end cover, a heating device is provided inside the equipment body, and the heating device includes a first hollow shaft and a second hollow shaft, the surfaces of the first hollow shaft and the second hollow shaft are both provided with fan-shaped jacket shells, the surfaces of the jacket shells are both provided with hollow blades, the jacket shells on the surfaces of the first hollow shaft and the second hollow shaft are staggered with each other, and a transmission device is provided under the equipment body; the utility model is to solve the problem that the charcoal-based fertilizer in the prior art has low drying efficiency during the drying process and cannot meet the drying requirements when there are more materials;

[0004] Although the above patent designs the main body of the equipment to perform flip drying, and combines hollow blades to stir the charcoal, thereby improving the charcoal heating effect and achieving charcoal crushing, the following problems still exist: 1. The equipment adopts a cylindrical drying method. During the charcoal loading process, it is difficult to evenly lay the charcoal in the cylinder for drying, which will cause a large amount of charcoal to accumulate at the feed port, affecting the uniformity of subsequent charcoal drying. 2. Since the charcoal cannot change its position horizontally in the drying cylinder, this will make it difficult to unload the dried charcoal collectively, and it is easy to have problems such as charcoal residue. In view of this, we propose a drying device and process for preparing biomass charcoal. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a drying device and process for preparing biochar, which solves the problems raised in the above background technology. To achieve the above purpose, the present invention is implemented through the following technical solutions: a drying device for preparing biochar, comprising a support frame, to which a feed tray and a discharge tray are respectively fixedly connected, a spiral rod blade is movably connected inside the feed tray, and a rotating connection device for driving the spiral rod blade to rotate is arranged inside the discharge tray; a rotating bin, the two ends of which are respectively rotatably connected to the ends of the feed tray and the discharge tray; and a flipping device, which is arranged on the support frame.

[0006] Preferably, the flipping device includes a mounting seat, which is fixedly connected to the support frame, an active motor is installed inside the mounting seat, the output shaft of the active motor is connected to a double-tooth shaft, the surface of the double-tooth shaft is meshed with a gear ring, the inner wall of the gear ring is fixedly connected to a connecting ring through a buffer column, the surface of the double-tooth shaft is rotatably connected to the support frame, the end of the gear ring is rotatably connected to the support frame, and the inner wall of the connecting ring is fixedly connected to the surface of the rotating bin.

[0007] Preferably, the flipping device also includes a convex strip and a telescopic rod, the convex strip is fixedly connected to the rotating bin, one end of the telescopic rod is fixedly connected to the support frame, the other end of the telescopic rod is fixedly connected to an impact ball, and a spring is fixedly connected between the surface of the impact ball and the surface of the support frame.

[0008] Preferably, the rotating connection device includes a rotating shaft, the surface of the rotating shaft is rotatably connected to the inside of the unloading tray, the interior of the rotating shaft is respectively provided with a pneumatic chamber and a limiting slide groove, the internal piston of the pneumatic chamber is connected to a plug rod, the end of the plug rod away from the rotating shaft is fixedly connected to a connecting handle, the end of the connecting handle is fixedly connected to a baffle plate, a connecting piece is fixedly connected to the rotating shaft, and the surface of the baffle plate is slidably connected to the inside of the unloading tray.

[0009] Preferably, the rotating bin is provided with a plurality of sockets distributed in a circular array, the connecting member includes a fixed rod, the end of the fixed rod is fixedly connected to the surface of the rotating shaft, the interior of the fixed rod is elastically connected to a moving rod via a spring, and the end of the moving rod is slidably connected to the plug shaft.

[0010] Preferably, the interior of the fixed rod is connected to the interior of the pneumatic chamber, the surface of the movable rod is connected to the inner wall piston of the fixed rod, the interior of the movable rod and the end of the plug-in shaft are fixedly connected with magnets, and the opposing surfaces of the two magnets are of the same polarity.

[0011] Preferably, the interior of the connecting handle is elastically connected to a pressing plate via a spring, the end of the pressing plate is plugged with a fixing seat, the end of the fixing seat is fixedly connected to the interior of the discharge tray, and two sets of slots are provided inside the fixing seat.

[0012] Preferably, a block is fixedly connected to the end of the spiral rod blade close to the rotating shaft, and the block is slidably connected to the inner wall of the limiting slide groove. A ball is fixedly connected to the end of the spiral rod blade away from the rotating shaft, and an inner-grooved wire groove sleeve is slidably connected to the surface of the ball. The end of the inner-grooved wire groove sleeve is fixedly connected to the feed disk, and a guide groove is opened inside the inner-grooved wire groove sleeve.

[0013] Preferably, a heating rod is installed inside the spiral rod blade, and the heating rod is installed on a support frame. One side of the unloading tray is located inside the rotating bin and is fixedly connected with an arc-shaped heating plate.

[0014] A drying process for preparing biochar, comprising the following steps:

[0015] Step 1: disconnection, the operator controls the connecting handle to drive the baffle plate away from the unloading port in the unloading tray, and the connecting handle drives the connector to disengage from the plug-in effect of the plug rod and the air pressure effect;

[0016] Step 2: Feeding, feeding the biochar to be dried from the hopper on the feed tray into the rotating bin;

[0017] Step 3: Spreading the material. The active motor is started while feeding. The active motor drives the connecting ring on the buffer column to rotate through the meshing gear ring of the double-toothed shaft. The connecting ring drives the rotating bin to rotate on the support frame. The spiral rod blades are in a fixed state. The biochar entering the rotating bin is automatically spread under the influence of the spiral rod blades as the rotating bin turns over.

[0018] Step 4: Closed bin drying. The operator controls the connecting handle to drive the baffle plate to close the discharge port in the discharge tray. The connecting handle drives the connection between the connector and the jack through the plug rod and air pressure effect. The rotating bin and the spiral rod blade rotate synchronously, and the heating rod and the arc heating plate are started to turn the biochar over and dry it.

[0019] Step 5: Unloading, control the connecting handle to drive the baffle plate away from the unloading port in the unloading tray, start the active motor to rotate the rotating bin, the spiral rod blades are relatively still, and the biochar is unloaded to the lower feeding port under the influence of the spiral rod blades as the rotating bin turns over.

[0020] It can be seen from the above technical solutions that the drying device and process for preparing biochar provided in the embodiments of this specification have at least the following beneficial effects:

[0021] (1) The present invention sets the spiral blades to switch between static and dynamic modes. When the spiral blades are not rotating, the turning device is used to drive the rotating bin to rotate to achieve the transportation of biochar, thereby avoiding the problem of biochar accumulation at the feed inlet, achieving automatic laying of biochar, and improving the uniformity of biochar drying. Combined with the turning and vibration effects of the turning device in the rotating bin, the biochar can be further shaken out, thereby reducing the problem of biochar sticking, thereby achieving the purpose of improving the biochar drying effect. At the same time, the conveying properties of the spiral blades are used to facilitate the unloading of the dried biochar, thereby achieving automatic unloading of biochar, solving the problem of difficult unloading of the existing drying cylinder.

[0022] (2) The present invention uses a turning device to utilize the output shaft of the active motor to engage the gear ring through a double-tooth shaft rod. The gear ring drives the rotating bin on the connecting ring to rotate on the support frame through a buffer column. The biochar entering the rotating bin is turned along with the rotating bin, thereby achieving the effect of turning and drying the biochar. The biochar is turned over so that the biochar body is fully dried, the drying effect is improved, and the power for the rotation of the spiral rod blades can be increased.

[0023] (3) The present invention controls the direction of movement of the connecting handle by rotating the connecting device, and utilizes the positive pressure gas or negative pressure gas generated by the plug rod in the air pressure chamber to act on the connecting piece, so as to achieve the effect of driving whether the connecting piece is connected to the rotating chamber. When the connecting piece is connected to the rotating chamber, the spiral rod blades rotate synchronously with the rotating chamber. When the connecting piece is not connected to the rotating chamber, the spiral rod blades do not rotate. When the biochar rotates with the rotating chamber, it will be affected by the fixed spiral rod blades to automatically lay or unload, thereby solving the problem of existing biochar accumulation at the feed port, realizing automatic laying of biochar, and improving the uniformity of biochar drying.

[0024] (4) The present invention provides an elastic and retractable impact ball. During the rotation of the rotating bin, the rotating bin can use a plurality of convex strips distributed in a circular array on the impact ball to impact the impact ball. The vibration generated by the impact acts on the rotating bin, and the vibration force is transmitted to the biochar in the bottom area of ​​the rotating bin, so as to achieve the effect of automatically shaking out the biochar, thereby reducing the problem of biochar stickiness. At the same time, it can achieve the effect of vibration unloading, further avoiding the problem of carbon residue.

[0025] (5) The present invention presses the two card plates so that they are contracted into the connecting handle as a whole. After contraction, the connecting handle can be moved as needed. When it is moved to the specified position, the card plates are released, and the two card plates are elastically rebounded into the card slots in the fixing seat to achieve positioning. At the same time, by providing an elastically positioned card plate and a fixing seat for fixing the card plate, the connecting handle can be fixed as a whole before and after movement.

[0026] (6) The present invention provides an inner groove sleeve and a ball bearing. When the spiral rod blade and the rotating chamber rotate synchronously, the inner groove sleeve is always in a fixed state. At this time, the spiral rod blade is affected by the ball bearing and the guide groove to perform a linear reciprocating movement in the inner groove sleeve. The spiral rod blade can achieve the effect of shifting the biochar during the reciprocating movement, further solving the problem of biochar sticking, thereby achieving the purpose of improving the biochar drying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the internal structure of the rotating bin in the present invention;

[0030] Figure 3 It is a structural schematic diagram of the telescopic rod in the present invention;

[0031] Figure 4 It is a schematic diagram of the state when the clamping plate in the present invention closes the feed opening;

[0032] Figure 5 It is a schematic diagram of the structure of the connecting piece in the present invention;

[0033] Figure 6 It is a schematic diagram of the structure of the jack in the present invention;

[0034] Figure 7 It is a schematic diagram of the structure of the connecting handle in the present invention;

[0035] Figure 8 This is a schematic diagram of the structure of the card pressing plate in the present invention;

[0036] Fig. 9 It is a schematic diagram of the structure of the fixing seat in the present invention;

[0037] Fig.10 This is a schematic diagram of the spiral rod and leaf structure of the present invention;

[0038] Fig.11 It is a schematic diagram of the support frame structure in the present invention.

[0039] In the figure: 1. support frame; 2. feed tray; 3. unloading tray; 4. spiral rod blade; 41. block; 42. ball; 43. sleeve with recessed wire groove; 44. guide groove; 5. rotating connecting device; 51. rotating shaft; 52. air pressure chamber; 53. plug rod; 54. connecting handle; 55. baffle plate; 56. connecting piece; 561. fixed rod; 562. moving rod; 563. plug shaft; 564. socket; 565. magnet; 57. limit slide; 58. card plate; 59. fixed seat; 6. rotating chamber; 7. flip device; 71. mounting seat; 72. active motor; 73. double-tooth shaft; 74. gear ring; 75. buffer column; 76. connecting ring; 77. convex strip; 78. telescopic rod; 79. impact ball; 8. heating rod; 9. arc heating plate. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0041] See also Figure 1 - Fig.11 As shown, a drying device for preparing biochar comprises a support frame 1, to which a feed tray 2 and a discharge tray 3 are respectively fixedly connected, a spiral rod blade 4 is movably connected inside the feed tray 2, and a rotating connection device 5 for driving the spiral rod blade 4 to rotate is arranged inside the discharge tray 3; a rotating bin 6, the two ends of the rotating bin 6 are respectively rotatably connected to the end portions of the feed tray 2 and the discharge tray 3; a turning device 7, the turning device 7 is arranged on the support frame 1, a heating rod 8 is installed inside the spiral rod blade 4, and the heating rod 8 is installed on the support frame 1, and one side of the discharge tray 3 is located inside the rotating bin 6 and is fixedly connected with an arc-shaped heating plate 9. Traditional spiral blades can achieve the effect of conveying materials when rotating. Here, the spiral rod blade 4 is set to a switchable static and dynamic mode. When the spiral rod blade 4 is not rotating, the turning device 7 is used to drive the rotating bin 6 to rotate to achieve the conveying of biochar, thereby avoiding the problem of biochar accumulation at the feed port, realizing the automatic laying of biochar, and improving the uniformity of biochar drying. Combined with the turning and vibration effects of the turning device 7 in the rotating bin 6, the biochar can be further shaken off, thereby reducing the problem of biochar stickiness, thereby achieving the purpose of improving the biochar drying effect. At the same time, the conveying properties of the spiral rod blade 4 are used to facilitate the unloading of the dried biochar, thereby realizing automatic unloading of biochar, and solving the problem of difficult unloading of existing drying cylinders.

[0042] In this embodiment, the flip device 7 includes a mounting seat 71, which is fixedly connected to the support frame 1. An active motor 72 is installed inside the mounting seat 71. The output shaft of the active motor 72 is connected to a double-toothed shaft rod 73. The surface of the double-toothed shaft rod 73 is meshed with a gear ring 74. The double-toothed shaft rod 73 is composed of a gear and a shaft rod. The shaft rod is connected to the output shaft of the active motor 72, and the gear is meshed with the gear ring 74. The inner wall of the gear ring 74 is fixedly connected to a connecting ring 76 through a buffer column 75. The surface of the double-toothed shaft rod 73 is rotatably connected to the On the support frame 1, the end of the ring gear 74 is rotatably connected to the support frame 1, the inner wall of the connecting ring 76 is fixedly connected to the surface of the rotating bin 6, and the output shaft of the active motor 72 engages the ring gear 74 through the double-tooth shaft 73. The engaged ring gear 74 drives the rotating bin 6 on the connecting ring 76 to rotate on the support frame 1 through the buffer column 75. The biochar entering the rotating bin 6 is flipped along with the rotating bin 6, thereby achieving the effect of flipping and drying the biochar. The biochar is flipped so that the charcoal body is fully dried, thereby improving the drying effect.

[0043] Furthermore, the flipping device 7 also includes a plurality of convex strips 77 and a telescopic rod 78. The plurality of convex strips 77 are fixedly connected in a circular array to the rotating bin 6. One end of the telescopic rod 78 is fixedly connected to the support frame 1. The other end of the telescopic rod 78 is fixedly connected to an impact ball 79. A spring is fixedly connected between the surface of the impact ball 79 and the surface of the support frame 1. By providing an elastic and retractable impact ball 79, the rotating bin 6 can utilize the plurality of convex strips 77 distributed in a circular array thereon to impact the impact ball 79 during rotation. The vibration generated by the impact acts on the rotating bin 6, and the vibration force is transmitted to the biochar in the bottom area of ​​the rotating bin 6, so as to achieve the effect of automatically shaking off the biochar, thereby reducing the problem of biochar stickiness and achieving the purpose of improving the drying effect of the biochar. At the same time, the elastic force will act on the impact ball 79, which can not only increase its vibration frequency, but also prompt the impact ball 79 to move and reset, thereby realizing repeated work of the impact ball 79. When the biochar is in the process of being discharged, the impact force of the convex strip 77 and the impact ball 79 acts on the rotating bin 6, which can achieve the effect of vibration discharge and further avoid the problem of charcoal residue.

[0044] Furthermore, the rotating connecting device 5 includes a rotating shaft 51, the surface of the rotating shaft 51 is rotatably connected to the inside of the unloading tray 3, and the inside of the rotating shaft 51 is respectively provided with an air pressure chamber 52 and a limiting slide groove 57, the internal piston of the air pressure chamber 52 is connected to a plug rod 53, and the end of the plug rod 53 away from the rotating shaft 51 is fixedly connected to a connecting handle 54, and the end of the connecting handle 54 is fixedly connected to a baffle plate 55, the surface of the baffle plate 55 is slidably connected to the inside of the unloading tray 3, and a connecting piece 56 is fixedly connected to the rotating shaft 51. The operator controls the direction of movement of the connecting handle 54 and controls the piston movement of the plug rod 53 in the air pressure chamber 52. The positive pressure gas or negative pressure gas generated during the piston movement acts on the connecting piece 56 through the air pressure chamber 52, thereby achieving the effect of switching the connection state between the connecting piece 56 and the rotating chamber 6. When the connecting piece 56 is connected to the rotating chamber 6, the spiral rod leaves 4 rotate synchronously with the rotating chamber 6. When the connecting piece 56 is not connected to the rotating chamber 6, the spiral rod leaves 4 do not rotate. When the biochar rotates with the rotating chamber 6, it will be affected by the fixed spiral rod leaves 4 to automatically lay or unload. This solves the problem of existing biochar accumulation at the feed port, realizes automatic laying of biochar, and improves the uniformity of biochar drying.

[0045] It is worth noting that the rotating bin 6 is provided with a plurality of sockets 564 distributed in a circular array, the connecting member 56 includes a fixed rod 561, the end of the fixed rod 561 is fixedly connected to the surface of the rotating shaft 51, the interior of the fixed rod 561 is communicated with the interior of the air pressure bin 52, the interior of the fixed rod 561 is elastically connected to a moving rod 562 through a spring, the end of the moving rod 562 is slidably connected to an insertion shaft 563, the surface of the moving rod 562 is piston-connected to the inner wall of the fixed rod 561, the interior of the moving rod 562 and the end of the insertion shaft 563 are fixedly connected with magnets 565, and the opposite surfaces of the two magnets 565 are in the same polarity. When the moving rod 562 drives the insertion shaft 563 to move in a direction close to the axis of the rotating bin 6, the insertion shaft 563 will exist in two states, one is that the insertion shaft 563 is directly inserted into the socket 564, and the other is that the insertion shaft 563 is misaligned with the socket 564. When the plug shaft 563 is not inserted into the socket 564, the plug shaft 563 will retract at the end of the moving rod 562. During the rotation of the rotating bin 6, when the socket 564 on the rotating bin 6 rotates to the plug shaft 563, when their positions correspond to each other, the plug shaft 563 will use the magnetic repulsion of the magnet 565 to move into the socket 564, and then achieve the plug-in effect. No matter what state the plug shaft 563 is in, it will eventually be plugged into the socket 564. At this time, the rotation effect of the rotating bin 6 will act on the moving rod 562 through the plug shaft 563, and in turn act on the spiral rod leaf 4 through the fixed rod 561, the rotating shaft 51, the limiting slide groove 57 and the block 41, so as to achieve the effect of the spiral rod leaf 4 rotating with the rotating bin 6 as a whole, thereby achieving the effect of not transporting the biochar during drying, and ensuring that the biochar is stably flipped and dried in the rotating bin 6. When the moving rod 562 drives the plug shaft 563 to move in the direction away from the axis of the rotating bin 6, the plug shaft 563 loses the plug-in effect with the plug hole 564 after the movement. Since the plug shaft 563 is not plugged with the plug hole 564, the spiral rod leaf 4 will not rotate, and the biochar will be automatically laid or automatically unloaded under the influence of the fixed spiral rod leaf 4 when the rotating bin 6 rotates.

[0046] It is worth mentioning that the interior of the connecting handle 54 is elastically connected to two symmetrically distributed card plates 58 through springs, and the ends of the card plates 58 are inserted with fixed seats 59. The ends of the fixed seats 59 are fixedly connected to the interior of the unloading tray 3, and two groups of card slots are opened inside the fixed seat 59. By pressing the two card plates 58, the entirety of the card plates 58 can be retracted into the connecting handle 54. After retraction, the connecting handle 54 can be moved as needed. When it is moved to the specified position, the card plates 58 are released, and the two card plates 58 are elastically rebounded to the card slots in the fixed seat 59 for positioning. At the same time, by providing the elastically positioned card plates 58 and the fixed seats 59 for fixing the card plates 58, the connecting handle 54 can be fixed as a whole before and after movement.

[0047] In addition, a block 41 is fixedly connected to one end of the spiral rod blade 4 close to the rotating shaft 51, and the block 41 is slidably connected to the inner wall of the limiting slide groove 57, and a ball 42 is fixedly connected to one end of the spiral rod blade 4 away from the rotating shaft 51, and an inner groove sleeve 43 is slidably connected to the surface of the ball 42, and the end of the inner groove sleeve 43 is fixedly connected to the feed tray 2, and a guide groove 44 is opened inside the inner groove sleeve 43. When the spiral rod blade 4 and the rotating bin 6 rotate synchronously, the inner groove sleeve 43 is always in a fixed state. At this time, the spiral rod blade 4 is affected by the ball 42 and the guide groove 44 to perform a linear reciprocating motion in the inner groove sleeve 43. The spiral rod blade 4 can achieve the effect of transferring the biochar during the reciprocating motion, further solve the problem of biochar sticking, and achieve the purpose of improving the biochar drying effect.

[0048] A drying process for preparing biochar, comprising the following steps:

[0049] Step 1: disconnection. The operator controls the connecting handle 54 to drive the baffle plate 55 away from the discharge port in the discharge tray 3. The connecting handle 54 drives the connecting piece 56 to disengage from the plugging effect of the plug rod 53 and the air pressure effect. The operator controls the direction of movement of the connecting handle 54 and uses the positive pressure gas or negative pressure gas generated by the plug rod 53 in the air pressure bin 52 to act on the connecting piece 56, so as to achieve the effect of switching the connection state between the connecting piece 56 and the rotating bin 6. When the connecting piece 56 is connected to the rotating bin 6, the spiral rod leaf 4 rotates synchronously with the rotating bin 6. When the connecting piece 56 is not connected to the rotating bin 6, the spiral rod leaf 4 does not rotate. When the biochar rotates with the rotating bin 6, it will be affected by the fixed spiral rod leaf 4 to automatically lay or automatically discharge the biochar, thereby solving the problem of existing biochar accumulation at the feed port, realizing automatic laying of biochar, and improving the uniformity of biochar drying.

[0050] Step 2: Feeding, feeding the biochar to be dried from the hopper on the feed tray 2 into the rotating bin 6;

[0051] Step 3: laying the material. The active motor 72 is started while feeding. The active motor 72 drives the connecting ring 76 on the buffer column 75 to rotate through the double-tooth shaft 73 engaging the gear ring 74. The connecting ring 76 drives the rotating bin 6 to rotate on the support frame 1. The spiral rod blades 4 are in a fixed state. The biochar entering the rotating bin 6 is automatically laid under the influence of the spiral rod blades 4 during the turning of the rotating bin 6, thereby solving the problem of the existing biochar accumulation at the feed port, realizing the automatic laying of the biochar, and improving the uniformity of the drying of the biochar.

[0052] Step 4: Close the bin and dry. The operator controls the connecting handle 54 to drive the baffle plate 55 to close the discharge port in the discharge tray 3. The connecting handle 54 drives the connection between the connecting piece 56 and the plug hole 564 through the plug rod 53 and the air pressure effect. The rotating bin 6 and the spiral rod blade 4 rotate synchronously. The heating rod 8 and the arc heating plate 9 are started to turn the biochar over and dry it. The biochar is turned over so that the carbon body is fully dried and the drying effect is improved.

[0053] Step 5: Unloading, control the connecting handle 54 to drive the baffle plate 55 away from the unloading port in the unloading tray 3, start the active motor 72 to rotate the rotating bin 6, and the spiral rod blades 4 are relatively stationary. As the rotating bin 6 turns over, the biochar is unloaded to the lower feeding port under the influence of the spiral rod blades 4, thereby realizing automatic unloading of the biochar, solving the problem of difficulty in unloading from the existing drying cylinder.

[0054] The present invention relates to a drying device and process for preparing biochar. When in use, the operator controls the connecting handle 54 to drive the baffle plate 55 away from the discharge port in the discharge tray 3. Both sides of the connecting handle 54 are provided with a pressing plate 58, and the two pressing plates 58 are connected with a spring. By pressing the two pressing plates 58, the connecting handle 54 is contracted into the connecting handle 54 as a whole. After contraction, the connecting handle 54 can be moved as needed. When it moves to the specified position, the pressing plate 58 is released, and the two pressing plates 58 are elastically rebounded to the slots in the fixed seat 59 to achieve positioning. When the connecting handle 54 moves, the piston moves in the air pressure chamber 52 through the plug rod 53 to achieve the squeezing effect. The positive pressure gas acts on the fixed rod 561 through the air pressure chamber 52, and the moving rod 562 moves outward in the fixed rod 561. During the moving movement, the moving rod 562 drives the plug-in shaft 563 to move in the direction away from the axis of the rotating bin 6. After the movement, the plug-in shaft 563 loses the plug-in effect with the plug-in hole 564. At this time, the biochar to be dried is fed from the hopper on the feed plate 2 into the rotating bin 6. The active motor 72 is started while feeding. The output shaft of the active motor 72 engages the gear ring 74 through the double-tooth shaft 73. The meshing gear ring 74 drives the rotating bin 6 on the connecting ring 76 to rotate on the support frame 1 through the buffer column 75. The biochar entering the rotating bin 6 is turned over with the rotating bin 6. At this time, since the plug-in shaft 563 is not plugged into the plug-in hole 564, the spiral rod leaf 4 will not rotate, and the biochar will be automatically laid under the influence of the fixed spiral rod leaf 4 when the rotating bin 6 rotates. Traditional spiral blades can achieve the effect of conveying materials when rotating. Here, the spiral rod blade 4 is set to static, and the rotation effect of the rotating bin 6 is used to realize the transportation of biochar, thereby avoiding the problem of biochar accumulation at the feed port, realizing the automatic laying of biochar, and improving the uniformity of biochar drying.After the loading is completed, the connecting handle 54 is controlled to move and reset, so that the connecting handle 54 moves in the direction of the lower material tray 3, driving the baffle plate 55 to close the unloading port in the unloading tray 3. At this time, the connecting handle 54 performs negative pressure movement in the air pressure chamber 52 through the plug rod 53, and the negative pressure acts on the moving rod 562 through the fixed rod 561, and the moving rod 562 retracts into the fixed rod 561. During the retraction, the moving rod 562 drives the plug shaft 563 to move in the direction close to the axis of the rotating chamber 6. There are two states during the movement. One is that the plug shaft 563 is directly inserted into the socket 564, and the other is that the plug shaft 563 is misaligned with the socket 564, and the plug shaft 563 is not inserted into the socket 564. When the plug shaft 563 is in the uninserted state, the plug shaft 563 will retract at the end of the moving rod 562. Movement, during the rotation of the rotating bin 6, when the socket 564 on the rotating bin 6 rotates to the plug shaft 563, when their positions correspond to each other, the plug shaft 563 will use the magnetic repulsion of the magnet 565 to move into the socket 564, and then achieve the plug-in effect. After the plug shaft 563 is plugged into the socket 564, the rotation effect of the rotating bin 6 will act on the moving rod 562 through the plug shaft 563, and in turn act on the spiral rod leaf 4 through the fixed rod 561, the rotating shaft 51, the limiting slide groove 57 and the block 41. At this time, the spiral rod leaf 4 rotates with the rotating bin 6 as a whole, thereby achieving the effect of not transporting the biochar during drying, ensuring that the biochar is stably turned over and dried in the rotating bin 6, and at the same time, the baffle plate 55 closes the discharge port, thereby avoiding the problems of heat leakage and charcoal leakage. At the same time, during the rotation of the rotating bin 6, the multiple convex strips 77 distributed in a circular array on it can impact the impact ball 79. The vibration generated by the impact acts on the rotating bin 6, and the vibration force is transmitted to the biochar in the bottom area of ​​the rotating bin 6, so as to achieve the effect of automatically shaking the biochar, thereby reducing the problem of biochar sticking, and achieving the purpose of improving the biochar drying effect. In addition, when the spiral rod leaf 4 and the rotating bin 6 rotate synchronously, the inner groove sleeve 43 is always in a fixed state. At this time, the spiral rod leaf 4 is affected by the ball 42 and the guide groove 44 to perform a linear reciprocating movement in the inner groove sleeve 43. The spiral rod leaf 4 achieves the effect of shifting the biochar during the reciprocating movement, further solving the problem of biochar sticking, and achieving the purpose of improving the biochar drying effect.After the drying is completed, the operator controls the connecting handle 54 to drive the baffle plate 55 away from the unloading port in the unloading tray 3. When the connecting handle 54 moves, the piston moves in the air pressure chamber 52 through the plug rod 53 to achieve the squeezing effect. The positive pressure gas acts on the fixed rod 561 through the air pressure chamber 52, and the moving rod 562 moves outward in the fixed rod 561. The moving rod 562 drives the plug shaft 563 to move in the direction away from the axis of the rotating chamber 6. After the movement, the plug shaft 563 loses the plugging effect with the socket 564, and the active motor 72 is started. The output shaft of the active motor 72 engages the gear ring 74 through the double-tooth shaft 73, and the gear ring 74 drives the connecting ring 76 through the buffer column 75. The rotating bin 6 rotates on the support frame 1, and the biochar entering the rotating bin 6 is turned over with the rotating bin 6. At this time, since the plug shaft 563 is not plugged into the plug hole 564, the spiral rod leaf 4 will not rotate, and the biochar will be automatically transported under the influence of the fixed spiral rod leaf 4 when the rotating bin 6 rotates. The biochar moves toward the lower feeding port, and the feeding port is not affected by the closure of the baffle plate 55 at this time, and is in an open state, thereby realizing automatic feeding of the biochar, solving the problem of difficult feeding of the existing drying cylinder, and during feeding, the impact force of the convex strip 77 and the impact ball 79 acts on the rotating bin 6, which can achieve the effect of vibration feeding and further avoid the problem of charcoal residue.

[0055] The above implementation methods are only used to illustrate the embodiments of the present invention, and are not intended to limit the embodiments of the present invention. Ordinary technicians in the relevant technical field may make various changes and modifications without departing from the spirit and scope of the embodiments of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the embodiments of the present invention. The patent protection scope of the embodiments of the present invention should be defined by the claims.

Claims

1. A drying device for preparing biochar, characterized in that: include A support frame (1), wherein a feed tray (2) and a discharge tray (3) are respectively fixedly connected to the support frame (1), a spiral rod blade (4) is movably connected inside the feed tray (2), and a rotating connection device (5) for driving the spiral rod blade (4) to rotate is provided inside the discharge tray (3); A rotating bin (6), the two ends of which are rotatably connected to the ends of the feed tray (2) and the discharge tray (3); A turning device (7), wherein the turning device (7) is arranged on the support frame (1); The rotating connection device (5) comprises a rotating shaft (51), the surface of the rotating shaft (51) is rotatably connected to the inside of the unloading tray (3), the inside of the rotating shaft (51) is respectively provided with an air pressure chamber (52) and a limiting slide groove (57), the internal piston of the air pressure chamber (52) is connected to a plug rod (53), the end of the plug rod (53) away from the rotating shaft (51) is fixedly connected to a connecting handle (54), the end of the connecting handle (54) is fixedly connected to a baffle plate (55), the rotating shaft (51) is fixedly connected to a connecting piece (56), and the surface of the baffle plate (55) is slidably connected to the inside of the unloading tray (3); The rotating bin (6) is provided with a plurality of insertion holes (564) distributed in a circular array, the connecting member (56) comprises a fixed rod (561), the end of the fixed rod (561) is fixedly connected to the surface of the rotating shaft (51), the interior of the fixed rod (561) is elastically connected to a moving rod (562) via a spring, and the end of the moving rod (562) is slidably connected to an insertion shaft (563); The tilting device (7) comprises a mounting seat (71), the mounting seat (71) is fixedly connected to the support frame (1), an active motor (72) is installed inside the mounting seat (71), the output shaft of the active motor (72) is connected to a double-toothed shaft (73), a surface of the double-toothed shaft (73) is meshed with a gear ring (74), the inner wall of the gear ring (74) is fixedly connected to a connecting ring (76) via a buffer column (75), the surface of the double-toothed shaft (73) is rotatably connected to the support frame (1), the end of the gear ring (74) is rotatably connected to the support frame (1), and the inner wall of the connecting ring (76) is fixedly connected to the surface of the rotating bin (6); The flipping device (7) further comprises a convex strip (77) and a telescopic rod (78), wherein the convex strip (77) is fixedly connected to the rotating bin (6), one end of the telescopic rod (78) is fixedly connected to the support frame (1), and the other end of the telescopic rod (78) is fixedly connected to an impact ball (79), and a spring is fixedly connected between the surface of the impact ball (79) and the surface of the support frame (1).

2. A drying device for preparing biochar according to claim 1, characterized in that: The interior of the fixed rod (561) is communicated with the interior of the air pressure chamber (52), the surface of the movable rod (562) is connected to the inner wall piston of the fixed rod (561), the interior of the movable rod (562) and the end of the insertion shaft (563) are both fixedly connected with magnets (565), and the opposite surfaces of the two magnets (565) are of the same polarity.

3. A drying device for preparing biochar according to claim 1, characterized in that: The interior of the connecting handle (54) is elastically connected to a clamping plate (58) via a spring, the end of the clamping plate (58) is plugged with a fixing seat (59), the end of the fixing seat (59) is fixedly connected to the interior of the unloading tray (3), and the interior of the fixing seat (59) is provided with two groups of clamping grooves.

4. A drying device for preparing biochar according to claim 1, characterized in that: A clamping block (41) is fixedly connected to one end of the spiral rod blade (4) close to the rotating shaft (51), and the clamping block (41) is slidably connected to the inner wall of the limiting sliding groove (57). A ball (42) is fixedly connected to one end of the spiral rod blade (4) away from the rotating shaft (51), and a recessed wire groove shaft sleeve (43) is slidably connected to the surface of the ball (42). The end of the recessed wire groove shaft sleeve (43) is fixedly connected to the feed disc (2), and a guide groove (44) is provided inside the recessed wire groove shaft sleeve (43).

5. A drying device for preparing biochar according to claim 1, characterized in that: A heating rod (8) is installed inside the spiral blade (4), and the heating rod (8) is installed on the support frame (1). One side of the unloading tray (3) is located inside the rotating bin (6) and is fixedly connected to an arc-shaped heating plate (9).

6. A drying process for preparing biochar, based on the drying device for preparing biochar according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: disconnection, the operator controls the connecting handle (54) to drive the blocking plate (55) away from the discharge port in the discharge tray (3), and the connecting handle (54) drives the connecting piece (56) to be disconnected from the plug hole (564) through the plug rod (53) and the air pressure effect; Step 2: feeding, feeding the biochar to be dried from the hopper on the feed tray (2) into the rotating bin (6); Step 3: Spreading the material, the active motor (72) is started while feeding the material, and the active motor (72) drives the connecting ring (76) on the buffer column (75) to rotate through the double-toothed shaft (73) meshing with the gear ring (74), and the connecting ring (76) drives the rotating bin (6) to rotate on the support frame (1), and the spiral rod blade (4) is in a fixed state. The biochar entering the rotating bin (6) is automatically spread under the influence of the spiral rod blade (4) as the rotating bin (6) turns over; Step 4: Close the chamber for drying. The operator controls the connecting handle (54) to drive the baffle plate (55) to close the discharge port in the discharge tray (3). The connecting handle (54) drives the connection piece (56) to be connected with the plug hole (564) through the plug rod (53) and the air pressure effect. The rotating chamber (6) and the spiral rod blade (4) rotate synchronously. The heating rod (8) and the arc heating plate (9) are started to turn the biochar over and dry it. Step 5: unloading, controlling the connecting handle (54) to drive the baffle plate (55) away from the unloading opening in the unloading plate (3), starting the active motor (72) to rotate the rotating bin (6), the spiral rod blade (4) is relatively stationary, and the biochar is unloaded to the lower opening under the influence of the spiral rod blade (4) as the rotating bin (6) turns over.

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