A drying device for biomass fuel production
By designing drying devices in a biomass fuel dryer, including drums, screens and air selection systems, the problems of biomass particle breakage and powder generation are solved, and production efficiency and energy utilization are improved.
Patent Information
- Application Number
- CN202421526711.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-07-01
AI Technical Summary
During the drying process, biomass fuel dryer causes biomass particles to break and produce powder, resulting in high production costs and low efficiency.
A drying device for the production of biomass fuel is designed, including a drying drum, a rotating drum, a sorting box, a first guide groove, a screen mesh, a second guide groove and a screen powder member. The screen is driven by the linkage component to perform screening and the dropped powder is removed by air selection.
It improves energy utilization and structural coordination, realizes effective sorting of particles and efficient removal of powder, reduces production costs and improves efficiency.
Smart Images
Figure CN222733214U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of drying machines, in particular to a drying device for biomass fuel production. Background Art
[0002] Biomass fuel dryer is a kind of equipment used for drying biomass materials, suitable for a variety of materials, such as wood chips, sawdust, bamboo chips, wooden chips, straw (such as barley straw, oat straw, wheat straw, rye straw, rice straw, sorghum straw and corn straw), potato vines and legume stems (such as soybean straw, broad bean straw, pea straw, cowpea straw, lupine straw and peanut vines), etc.
[0003] The working principle of the biomass fuel dryer is that the material enters the inner layer of the rotary drum through the feeding device to achieve downstream drying, and multiple heat exchanges are carried out between the inner layer and the middle layer to make the material reach the best drying state, and finally the dried biomass particles are discharged;
[0004] Since biomass pellets are formed by compressing and extruding the crushed particles, they will break during the turning process inside the drying drum and produce a certain amount of powder. After the biomass pellets break, they need to be screened and classified to ensure the quality. The fallen powder also needs to be removed through screening and other processes, which has the defects of high production cost and low efficiency.
[0005] In order to solve the above problems, the present application proposes a drying device for biomass fuel production. Utility Model Content
[0006] The purpose of the utility model is to provide a drying device for biomass fuel production, which solves the problems raised in the above-mentioned background technology.
[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:
[0008] The utility model discloses a drying device for biomass fuel production, comprising a drying cylinder, a rotating drum is arranged inside the drying cylinder, a sorting box is arranged just below the discharging end of the drum, a movable first material guide trough is arranged at the upper end inside the sorting box, a screen is arranged inside the first material guide trough, a second material guide trough is fixedly arranged at the lower end of the sorting box, a powder screening component which can remove and collect powder in the process of particle falling is arranged between the first material guide trough and the second material guide trough, and a linkage component which drives the screen to reciprocate is arranged between the first material guide trough and the drum.
[0009] Furthermore, the powder screening component includes a guide hopper fixed inside the sorting box and a discharge channel fixed at the bottom of the guide hopper, as well as two wind nets arranged on both sides of the discharge channel, and a transfer channel fixed on one side of the transfer channel. A collecting box that is interconnected with the other end of the transfer channel is fixed inside the sorting box, and a pull-out collection box is provided inside the collecting box.
[0010] Furthermore, an exhaust fan is fixed on the top of the collecting box, and an intake fan is fixed on the side of the material discharge channel away from the transfer channel. The exhaust fan and the intake fan drive the air flow through the wind net, the material discharge channel, the transfer channel and discharged through the exhaust fan.
[0011] Furthermore, the guide hopper is located directly below the screen, and the material discharge channel is located directly above the sorting box.
[0012] Furthermore, one end of the transfer channel close to the wind net is lower than the end connected to the collection box, and a blocking net is also provided at the connection between the top of the collection box and the exhaust fan.
[0013] Furthermore, the linkage component includes a guide sleeve fixed in the sorting box, a guide rod fixed on the side of the first guide trough and sliding in the guide sleeve, and a return spring arranged on the side of the first guide trough and the guide sleeve and sleeved on the outside of the guide rod.
[0014] Furthermore, the linkage component also includes a mounting seat fixed on the first material guide trough near the drying cylinder side and a ball rolling on the front end of the mounting seat, and a wave ring fixed on the outer end of the drum, and the ball is in rolling contact with the wave ring through a return spring.
[0015] The utility model has the following beneficial effects:
[0016] The utility model arranges a first material guide trough and a screen at the end of the drum, and then drives the screen to screen through the rotation of the drum under the action of the linkage component, which has the advantages of high energy utilization rate and high structural matching degree, and can also sort the broken particles;
[0017] The utility model provides a powder screening component, which can screen out powder by air selection in the process of particle falling after sorting, and has the advantages of convenient operation and high efficiency.
[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0020] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;
[0021] Figure 2 for Figure 1 A schematic diagram of the structure from a side view;
[0022] Figure 3 It is a schematic diagram of the structure of the powder screening component and the linkage component in the utility model that are partially exploded;
[0023] Figure 4 This is a half-section structural diagram of the powder screening component in the utility model;
[0024] Figure 5 It is a structural schematic diagram of a partial enlargement of the linkage component in the utility model;
[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0026] In the figure: 1. drying drum; 2. roller; 3. sorting box; 4. first material guide trough; 5. screen; 6. second material guide trough; 7. powder screening component; 71. guide bucket; 72. material discharge channel; 73. wind net; 74. transfer channel; 75. collection box; 76. collection box; 77. exhaust fan; 78. intake fan; 8. linkage component; 81. guide sleeve; 82. guide rod; 83. return spring; 84. mounting seat; 85. ball; 86. wave ring. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] In the description of the present invention, it should be understood that terms such as "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.
[0029] See also Figure 1-5 As shown, the utility model is a drying device for biomass fuel production, including a drying cylinder 1, a rotating drum 2 is arranged inside the drying cylinder 1, a sorting box 3 is arranged just below the discharge end of the drum 2, a movable first material guide trough 4 is arranged at the upper end of the sorting box 3, a screen 5 is arranged inside the first material guide trough 4, a second material guide trough 6 is fixedly arranged at the lower end of the sorting box 3, a powder screening component 7 which can remove and collect powder in the process of particle falling is arranged between the first material guide trough 4 and the second material guide trough 6, and a linkage component 8 which drives the screen 5 to reciprocate is arranged between the first material guide trough 4 and the drum 2.
[0030] Among them, the powder screening component 7 includes a guide bucket 71 fixed inside the sorting box 3 and a discharge channel 72 fixed at the bottom of the guide bucket 71, as well as two wind nets 73 arranged on both sides of the discharge channel 72, and a transfer channel 74 fixed on one side of the transfer channel 74. A collecting box 75 that is interconnected with the other end of the transfer channel 74 is fixed inside the sorting box 3, and a pull-out collecting box 76 is provided inside the collecting box 75. In this embodiment, one end of the collecting box 76 is also located outside the sorting box 3, and the collecting box 76 can be directly pulled out and dumped from the outside.
[0031] Among them, an exhaust fan 77 is fixed on the top of the collecting box 75, and an intake fan 78 is fixed on the side of the feeding channel 72 away from the transfer channel 74. The exhaust fan 77 and the intake fan 78 drive the air flow to pass through the wind net 73, the feeding channel 72, the transfer channel 74 and be discharged through the exhaust fan 77. In this embodiment, the powder passing through the feeding channel 72 can be blown out through the air flow direction and collected in the collecting box 76. This structure can continuously screen for a long time, and the aperture of the wind net 73 is smaller than the diameter of the small particles.
[0032] Among them, the guide hopper 71 is located directly below the screen 5, and the discharge channel 72 is located directly above the sorting box 3. In this embodiment, the guide hopper 71 can completely catch the small particles and powder screened out by the screen 5 and shorten the flow channel width. The discharge channel 72 is narrow and long, and the air intake fan 78 is located on one side of the long side of the discharge channel 72 to reduce the width, thereby better ensuring the screening effect of the powder. The particles after the powder is removed directly fall on the sorting box 3 and are discharged.
[0033] Among them, one end of the transfer channel 74 close to the wind net 73 is lower than the end connected to the collection box 75, and a blocking net is also provided at the connection between the top of the collection box 75 and the exhaust fan 77. The transfer channel 74 in this embodiment is set to facilitate the screening of the powder located in the discharge channel 72 and enter the collection box 76 through the transfer channel 74. The blocking net is to prevent fine particles from being discharged from the exhaust fan 77, thereby ensuring the collection effect after the powder is removed.
[0034] Among them, the linkage component 8 includes a guide sleeve 81 fixed in the sorting box 3, a guide rod 82 fixed on the side of the first material guide trough 4 and sliding in the guide sleeve 81, and a return spring 83 arranged on the side of the first material guide trough 4 and the guide sleeve 81 and fitted on the outside of the guide rod 82. In this embodiment, the guide sleeve 81 and the guide rod 82 ensure the horizontal activity stability of the first material guide trough 4, and the return spring 83 is used for automatic resetting of the first material guide trough 4.
[0035] Among them, the linkage component 8 also includes a mounting seat 84 fixed on the side of the first material guide groove 4 close to the drying drum 1 and a ball 85 rolling on the front end of the mounting seat 84, and a wave ring 86 fixed on the outer end of the drum 2. The ball 85 is in rolling contact with the wave ring 86 through the return spring 83. In this embodiment, the mounting seat 84 continuously rolls on the wavy wave ring 86, and then the reciprocating motion of the first material guide groove 4 is realized under the reset of the return spring 83, thereby realizing the screening work of the screen 5.
[0036] It can be understood that, firstly, the powder screening component 7 is set to screen the powder produced by drying when the biomass falls during collection after drying. The screening process will not cause the particles to produce powder again, and it has a good screening effect; secondly, the linkage component 8 is set to enable the first material guide trough 4 and the screen 5 to sort the coarse and fine particles with the help of the power of the drum 2, which has higher flexibility of use.
[0037] A specific application of this embodiment is: the drum 2 is driven by a motor to rotate in the drying drum 1, and the drying drum 1 heats the drum 2. During the rotation of the drum 2, the wave ring 86 rotates accordingly, and the mounting seat 84 slides outside the wave ring 86. Through the fluctuation of the wave ring 86 and the action of the return spring 83, the first material guide trough 4 is driven to reciprocate in the horizontal direction; the air intake fan 78 and the exhaust fan 77 are turned on synchronously, driving the air flow to flow along the unloading channel 72, the transfer channel 74, and the exhaust fan 77;
[0038] The particles to be dried are put into the drum 2 from the front end, dried inside the drum 2 and discharged from the rear end, the particles fall on the first guide trough 4 and fall downward along the first guide trough 4, during this process the first guide trough 4 is in a reciprocating motion state, smaller particles will pass through the screen 5 and fall downward, while larger particles will be directly discharged outward through the first guide trough 4, the particles passing through the screen 5 are concentrated through the guide hopper 71 and fall into the feeding channel 72, in the process of the powder in the feeding channel 72, under the action of the exhaust fan 77 and the intake fan 78, the powder passes through the wind net 73 and enters the collecting box 76 in the collecting box 75 through the transfer channel 74, and the particles from which the powder is removed fall on the sorting box 3 and are discharged outward.
[0039] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0040] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A drying device for biomass fuel production, comprising a drying cylinder (1), wherein a rotating drum (2) is provided inside the drying cylinder (1), characterized in that: A sorting box (3) is provided just below the discharge end of the drum (2); a movable first material guide trough (4) is provided at the upper end of the sorting box (3); a screen (5) is provided inside the first material guide trough (4); a second material guide trough (6) is fixedly provided at the lower end of the sorting box (3); a powder screening component (7) is provided between the first material guide trough (4) and the second material guide trough (6) for removing and collecting powder during the falling process of particles; and a linkage component (8) is provided between the first material guide trough (4) and the drum (2) for driving the screen (5) to reciprocate.
2. A drying device for biomass fuel production according to claim 1, characterized in that: The powder screening component (7) comprises a guide hopper (71) fixed inside the sorting box (3), a material discharge channel (72) fixed at the bottom of the guide hopper (71), two air nets (73) arranged on both sides of the material discharge channel (72), and a transfer channel (74) fixed on one side of the transfer channel (74); a collection box (75) communicating with the other end of the transfer channel (74) is fixed inside the sorting box (3); a drawable collection box (76) is provided inside the collection box (75).
3. A drying device for biomass fuel production according to claim 2, characterized in that: An exhaust fan (77) is fixed on the top of the collecting box (75), and an air intake fan (78) is fixed on the side of the material discharge channel (72) away from the transfer channel (74). The exhaust fan (77) and the air intake fan (78) drive the air flow to pass through the wind net (73), the material discharge channel (72), and the transfer channel (74) and be discharged through the exhaust fan (77).
4. A drying device for biomass fuel production according to claim 2, characterized in that: The guide hopper (71) is located directly below the screen (5), and the material discharge channel (72) is located directly above the sorting box (3).
5. A drying device for biomass fuel production according to claim 2, characterized in that: One end of the transfer channel (74) close to the wind net (73) is lower than the end connected to the collection box (75), and a blocking net is also provided at the connection between the top of the collection box (75) and the exhaust fan (77).
6. A drying device for biomass fuel production according to claim 1, characterized in that: The linkage component (8) comprises a guide sleeve (81) fixed in the sorting box (3), a guide rod (82) fixed on the side of the first material guide trough (4) and sliding in the guide sleeve (81), and a return spring (83) arranged on the side of the first material guide trough (4) and the guide sleeve (81) and sleeved on the outside of the guide rod (82).
7. A drying device for biomass fuel production according to claim 6, characterized in that: The linkage component (8) further comprises a mounting seat (84) fixed to a side of the first material guide groove (4) close to the drying cylinder (1), a ball (85) rolling on the front end of the mounting seat (84), and a wave ring (86) fixed to the outer end of the drum (2), wherein the ball (85) is in rolling contact with the wave ring (86) via a return spring (83).