Vertical wood chip dryer

Abstract

The utility model relates to a vertical sawdust drying machine belongs to sawdust drying field. Include: drying mechanism, hot -blast delivery pipe, feeding mechanism, fan, discharge pipe, connecting pipe and drying pipe, the drying pipe is spiral tubular structure of vertical arrangement, the drying pipe sets up inside drying mechanism, the top end and the bottom of drying pipe all pass through the side wall of drying mechanism, and one -to -one correspondence with feeding mechanism and one end of connecting pipe sealed intercommunication, both ends of hot -blast delivery pipe one -to -one correspondence with the top end of drying mechanism and feeding mechanism sealed intercommunication, both ends of fan one -to -one correspondence with the one end of connecting pipe far from drying pipe and the one end of discharge pipe are connected. The utility model makes full use of heat, improves drying efficiency and drying quality, also reduced the floor area of drying machine.

Description

Technical Field

[0001] This utility model relates to the field of wood chip drying, and more particularly to a vertical wood chip dryer. Background Technology

[0002] A wood chip dryer is a specialized piece of equipment designed and manufactured specifically for drying materials such as wood chips, sawdust, and wood powder. When using wood chips to produce biomass fuel or for other purposes, it is usually necessary to first dry the damp wood chips to evaporate the moisture and reduce their moisture content to the required range.

[0003] Wood chips can be dried naturally. While natural drying is inexpensive and simple to operate, it is time-consuming, requires a large area, and is greatly affected by the external environment, resulting in poor stability. Furthermore, the amount of wood chips dried each time is limited by the available space, making it unsuitable for large-scale wood chip drying. Wood chip drying can also be done using a dryer. Compared to natural drying, dryers are simpler and more stable to operate. However, existing dryers typically place wood chips in a horizontal drum, using the rotation of the drum to introduce hot air and dry the wet wood chips. However, these drum-shaped dryers still require a large area, and the heat distribution during drying is uneven. Wood chips near the hot air inlet have lower humidity, while those further away have higher humidity, leading to long drying times, poor drying results, and significant energy waste. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a vertical wood chip dryer to solve the above-mentioned problem.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A vertical wood chip dryer includes: a drying mechanism, a hot air conveying pipe, a feeding mechanism, a fan, a discharge pipe, a connecting pipe, and a drying pipe; the drying pipe is a vertically arranged spiral tubular structure, the drying pipe is arranged inside the drying mechanism, the top and bottom ends of the drying pipe pass through the side wall of the drying mechanism, and are sealed and connected to one end of the feeding mechanism and the connecting pipe, respectively; the two ends of the hot air conveying pipe are sealed and connected to the top of the drying mechanism and the feeding mechanism, respectively; the two ends of the fan are connected to the end of the connecting pipe away from the drying pipe and the end of the discharge pipe, respectively.

[0006] The beneficial effects of this utility model are as follows: Compared with the existing natural drying method and horizontal drum dryer, the vertical wood chip dryer of this utility model occupies less space; the drying tube is a vertically arranged spiral tubular structure, which is conducive to the drying tube forming a spiral structure inside the drying mechanism, and a furnace is naturally formed in the middle of the spiral structure. Under the suction of the fan, the external damp wood chips conveyed by the feeding mechanism are sucked into the drying tube and continuously spiral down. In this process, on the one hand, the heat generated by the drying mechanism continuously bakes the damp wood chips inside the drying tube, increasing the drying area and accelerating the drying of wood chips, while also making the wood chips dry more evenly. On the other hand, the heat generated by the drying mechanism heats the air inside the drying mechanism, and the generated hot air enters the feeding mechanism through the hot air conveyor pipe, mixes with the external damp wood chips conveyed in the feeding mechanism, and is then input into the drying tube, further accelerating the drying of wood chips; this utility model makes full use of heat and improves drying efficiency and drying quality.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the drying mechanism includes: a drying chamber, a combustion chamber, an ash collection tank, and a base; the drying chamber is sealed at the top of the base, the combustion chamber is disposed on the base, the ash collection tank is movably disposed below the base and below the combustion chamber, the drying pipe is disposed in the space between the drying chamber and the base, and the combustion chamber is disposed below the drying pipe.

[0009] The advantages of adopting the above-mentioned further solutions are: the combustion chamber is beneficial for generating heat by burning the fuel input into it, thereby providing a heat source for the damp sawdust in the drying tube and the air in the drying chamber; the ash collection pool is beneficial for receiving the ash after the fuel is burned in the combustion chamber; and the drying chamber and base are beneficial for providing space for the installation of various components.

[0010] Furthermore, the feeding mechanism includes a feeding hopper and an auger conveyor; the auger conveyor is inclined, the feeding hopper is disposed on the lower side wall of the auger conveyor, and the feeding hopper is connected to the auger conveyor.

[0011] The beneficial effects of adopting the above-mentioned further scheme are: the feed hopper facilitates the input of external damp wood chips into the auger conveyor, and the screw conveyor of the auger conveyor transports the external damp wood chips to the vicinity of the connection between the drying pipe and the feeding mechanism, so that the damp wood chips can be sucked into the drying pipe for drying under the suction of the fan.

[0012] Furthermore, the top and bottom ends of the drying pipe correspond one-to-one as the feed port and the discharge port, and both the top and bottom ends of the drying pipe pass through the side wall of the drying chamber. The feed port is sealed and connected to the upper side wall of the auger conveyor, and the discharge port is sealed and connected to the end of the connecting pipe away from the fan.

[0013] The beneficial effects of adopting the above-mentioned further solution are: it is beneficial to draw the damp wood chips in the auger conveyor into the drying pipe through the feed port under the suction of the fan. While the damp wood chips spiral down in the drying pipe, the heat generated by the drying mechanism dries the damp wood chips, and finally outputs them from the discharge port.

[0014] Furthermore, a hot air outlet is provided at the top of the drying chamber, and both ends of the hot air conveying pipe are sealed and connected to the upper side wall of the auger conveyor and the hot air outlet respectively.

[0015] The beneficial effects of adopting the above-mentioned further scheme are: it facilitates the discharge of hot air generated by combustion in the combustion chamber inside the drying chamber to the auger conveyor through the hot air outlet and hot air conveying pipe, and the hot air mixed with damp wood chips is sucked into the drying pipe under the suction of the fan.

[0016] Furthermore, the connection position of the feed port to the upper side wall of the auger conveyor corresponds to the connection position of the hot air conveying pipe to the upper side wall of the auger conveyor.

[0017] The beneficial effect of adopting the above-mentioned further scheme is that it facilitates the mixing of damp wood chips conveyed from the outside into the auger conveyor with hot air before they are sucked into the drying pipe for drying.

[0018] Furthermore, the base includes a base panel and multiple support rods; the multiple support rods are wound around the bottom end of the base panel, and the base panel is provided with multiple ash outlets, which are through holes.

[0019] The beneficial effects of adopting the above-mentioned further solution are: the support rod supporting the base panel helps to provide space for the installation of the ash collection tank, and the ash outlet helps to allow the ash after combustion in the combustion chamber to fall into the ash collection tank.

[0020] Furthermore, the combustion chamber is a shell structure disposed on the base panel. The top of the combustion chamber is open, and the bottom end is connected to the ash outlet. A fuel filling channel is provided on the side wall of the combustion chamber, and the fuel filling channel passes through the side wall of the drying chamber in a sealed manner.

[0021] The beneficial effects of adopting the above-mentioned further scheme are: the fuel filling channel facilitates the addition of fuel to the combustion chamber, thereby continuously generating heat in the combustion chamber, continuously scorching the drying pipe and continuously heating the air inside the drying chamber.

[0022] Furthermore, the ash collection tank is movably disposed below the base panel, and the ash collection tank has a shell structure with an open top, the top of the ash collection tank being connected to the ash outlet.

[0023] The beneficial effect of adopting the above-mentioned further solution is that the ash collection pool is movably set below the base panel, which is conducive to timely cleaning of the ash collection pool after it is full of ash falling from the ash outlet. Attached Figure Description

[0024] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0025] Figure 2 A schematic diagram of the drying tube within the drying mechanism according to an embodiment of this utility model. Figure 1 ;

[0026] Figure 3 A schematic diagram of the drying tube within the drying mechanism according to an embodiment of this utility model. Figure 2 ;

[0027] Figure 4 A schematic diagram of the drying tube within the drying mechanism according to an embodiment of this utility model. Figure 3 ;

[0028] Figure 5 A top view of the combustion chamber, ash collection pool, and base provided for an embodiment of this utility model.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. Drying mechanism; 2. Hot air conveying pipe; 3. Feeding mechanism; 4. Fan; 5. Discharge pipe; 6. Connecting pipe; 7. Drying pipe; 11. Drying chamber; 12. Combustion chamber; 13. Ash collection tank; 14. Base; 31. Feed hopper; 32. Screw conveyor; 71. Discharge port; 72. Feed port; 111. Hot air outlet; 121. Fuel filling channel; 141. Base panel; 142. Support rod; 143. Ash outlet. Detailed Implementation

[0031] The principles and features of this utility model are described below. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0032] like Figures 1 to 5As shown, a vertical wood chip dryer includes: a drying mechanism 1, a hot air conveying pipe 2, a feeding mechanism 3, a fan 4, a discharge pipe 5, a connecting pipe 6, and a drying pipe 7; the drying pipe 7 is a vertically arranged spiral tubular structure, the drying pipe 7 is disposed inside the drying mechanism 1, the top and bottom ends of the drying pipe 7 pass through the side wall of the drying mechanism 1, and are sealed and connected to one end of the feeding mechanism 3 and the connecting pipe 6 respectively; the two ends of the hot air conveying pipe 2 are sealed and connected to the top end of the drying mechanism 1 and the feeding mechanism 3 respectively; the two ends of the fan 4 are connected to the end of the connecting pipe 6 away from the drying pipe 7 and the end of the discharge pipe 5 respectively.

[0033] It should be noted that, in the technical solution of this utility model, "sealed connection" means that gas and / or wood chips will not leak from the connection between the two components, such as hot air not leaking from the connection between the hot air conveying pipe 2 and the top of the drying mechanism 1, and the connection between the hot air conveying pipe 2 and the feeding mechanism 3; wood chips and gas will not leak from the connection between the drying pipe 7 and the feeding mechanism 3, and the connection between the drying pipe 7 and the connecting pipe 6.

[0034] The fan 4 is an existing device that generates suction, and its principle is the same as that of a vacuum cleaner, so its specific structure is not described.

[0035] When the damp sawdust is dried in the drying tube 7, the moisture in the damp sawdust is actually evaporated. When the sawdust mixed with water vapor is discharged from the discharge tube 5 to the outside, the sawdust is heavy and falls, while the water vapor is light and evaporates to form gas, thereby separating the sawdust that has already evaporated moisture from the water vapor, and obtaining dry sawdust.

[0036] In a preferred embodiment of this utility model, the discharge pipe 5 is connected to an external cyclone dust collector, which separates the wood chips that have evaporated moisture from the water vapor to obtain dry wood chips.

[0037] The beneficial effects of this utility model are as follows: Compared with the existing natural drying method and horizontal drum dryer, the vertical wood chip dryer of this utility model occupies less space; the drying tube is a vertically arranged spiral tubular structure, which is conducive to the drying tube forming a spiral structure inside the drying mechanism, and a furnace is naturally formed in the middle of the spiral structure. Under the suction of the fan, the external damp wood chips conveyed by the feeding mechanism are sucked into the drying tube and continuously spiral down. In this process, on the one hand, the heat generated by the drying mechanism continuously bakes the damp wood chips inside the drying tube, increasing the drying area and accelerating the drying of wood chips, while also making the wood chips dry more evenly. On the other hand, the heat generated by the drying mechanism heats the air inside the drying mechanism, and the generated hot air enters the feeding mechanism through the hot air conveyor pipe, mixes with the external damp wood chips conveyed in the feeding mechanism, and is then input into the drying tube, further accelerating the drying of wood chips; this utility model makes full use of heat and improves drying efficiency and drying quality.

[0038] Preferred, such as Figures 2 to 4 As shown, the drying mechanism 1 includes: a drying chamber 11, a combustion chamber 12, an ash collection tank 13, and a base 14; the drying chamber 11 is sealed at the top of the base 14, the combustion chamber 12 is disposed on the base 14, the ash collection tank 13 is movably disposed below the base 14, the ash collection tank 13 is disposed below the combustion chamber 12, the drying pipe 7 is disposed in the space between the drying chamber 11 and the base 14, and the combustion chamber 12 is disposed below the drying pipe 7.

[0039] It should be noted that: "the drying chamber 11 is sealed at the top of the base 14" means that the drying chamber 11 and the base 14 are sealed together, which helps to prevent the heated air in the drying chamber 11 from leaking out between the drying chamber 11 and the base 14, so that the heated air in the drying chamber 11 is output from the hot air outlet 111 as much as possible; in addition, since the air expands in volume, decreases in density and becomes lighter when heated, it moves upward and therefore the hot air will not be output from the ash outlet 143.

[0040] The advantages of adopting the above-mentioned preferred scheme are: the combustion chamber is beneficial for generating heat by burning the fuel input into it, thereby providing a heat source for the damp sawdust in the drying tube and the air in the drying chamber; the ash collection pool is beneficial for receiving the ash after the fuel is burned in the combustion chamber; and the drying chamber and base are beneficial for providing space for the installation of various components.

[0041] Preferred, such as Figure 1As shown, the feeding mechanism 3 includes a feeding hopper 31 and an auger conveyor 32; the auger conveyor 32 is inclined, and the feeding hopper 31 is disposed on the lower side wall of the auger conveyor 32, and the feeding hopper 31 is connected to the auger conveyor 32.

[0042] The advantages of adopting the above preferred solution are: the feed hopper facilitates the input of external damp wood chips into the auger conveyor, and the screw conveyor of the auger conveyor transports the external damp wood chips to the vicinity of the connection between the drying pipe and the feeding mechanism, so that the damp wood chips can be sucked into the drying pipe for drying under the suction of the fan.

[0043] Preferred, such as Figures 2 to 4 As shown, the top and bottom ends of the drying pipe 7 correspond one-to-one as the feed port 72 and the discharge port 71. The top and bottom ends of the drying pipe 7 both pass through the side wall of the drying chamber 11. The feed port 72 is sealed and connected to the upper side wall of the auger conveyor 32. The discharge port 71 is sealed and connected to the end of the connecting pipe 6 away from the fan 4.

[0044] The advantages of adopting the above-mentioned preferred solution are: it is beneficial to draw the damp wood chips in the auger conveyor into the drying pipe through the feed port under the suction of the fan. While the damp wood chips spiral down in the drying pipe, the heat generated by the drying mechanism dries the damp wood chips, and finally outputs them from the discharge port.

[0045] Preferred, such as Figure 1 and Figure 2 As shown, a hot air outlet 111 is provided at the top of the drying chamber 11, and the two ends of the hot air conveying pipe 2 are sealed and connected to the upper side wall of the auger conveyor 32 and the hot air outlet 111 respectively.

[0046] The advantages of adopting the above preferred solution are: it facilitates the discharge of hot air generated by combustion in the combustion chamber inside the drying chamber to the auger conveyor through the hot air outlet and hot air conveying pipe, and the hot air mixed with damp wood chips is sucked into the drying pipe under the suction of the fan.

[0047] Preferably, the connection position of the feed port 72 to the upper side wall of the auger conveyor 32 corresponds to the connection position of the hot air conveying pipe 2 to the upper side wall of the auger conveyor 32.

[0048] It should be noted that "corresponding" means that the connection positions of the feed port 72 and the hot air conveying pipe 2 with the upper side wall of the auger conveyor 32 are symmetrically arranged along the central axis of the auger conveyor 32. That is, inside the auger conveyor 32 near the feed port 72, the damp wood chips are mixed with the hot air conveyed from the hot air conveying pipe 2. At this time, under the suction of the fan 4, the damp wood chips mixed with the hot air are drawn into the drying pipe 7.

[0049] The advantages of adopting the above preferred solution are: it facilitates the mixing of damp wood chips conveyed from the outside into the auger conveyor with hot air before they are sucked into the drying pipe for drying.

[0050] Preferred, such as Figures 3 to 5 As shown, the base 14 includes a base panel 141 and a plurality of support rods 142; the plurality of support rods 142 are wound around the bottom end of the base panel 141, and the base panel 141 is provided with a plurality of ash outlets 143, the ash outlets 143 being through holes.

[0051] The advantages of adopting the above-mentioned preferred solution are: the support rod supporting the base panel helps to provide space for the installation of the ash collection tank, and the ash outlet helps to allow the ash after combustion in the combustion chamber to fall into the ash collection tank.

[0052] Preferred, such as Figures 3 to 5 As shown, the combustion chamber 12 is a shell structure disposed on the base panel 141. The top of the combustion chamber 12 is open, and the bottom is connected to the ash outlet 143. A fuel filling channel 121 is provided on the side wall of the combustion chamber 12, and the fuel filling channel 121 passes through the side wall of the drying chamber 11 in a sealed manner.

[0053] It should be noted that "sealed through" means that the fuel filling channel 121 and the drying chamber 11 are sealed together to prevent hot air inside the drying chamber 11 from leaking out between the fuel filling channel 121 and the drying chamber 11.

[0054] In a preferred embodiment of this utility model, the end of the fuel filling channel 121 away from the combustion chamber 12 is hinged with a cap, which is beneficial to isolate the combustion chamber 12 from the outside to a certain extent after fuel is added;

[0055] In a preferred embodiment of the present invention, the fuel filling channel 121 is disposed inside the drying chamber 11, and one end of the channel away from the combustion chamber 12 is disposed on the side wall of the drying chamber 11.

[0056] The advantages of adopting the above-mentioned preferred scheme are: the fuel filling channel facilitates the addition of fuel to the combustion chamber, thereby continuously generating heat in the combustion chamber, continuously scorching the drying pipe and continuously heating the air inside the drying chamber.

[0057] Preferred, such as Figure 3 and Figure 4 As shown, the ash collection tank 13 is movably disposed below the base panel 141. The ash collection tank 13 is a shell structure with an open top, and the top of the ash collection tank 13 is connected to the ash outlet 143.

[0058] The advantages of adopting the above preferred solution are: the ash collection tank is movably set below the base panel, which is conducive to timely cleaning of the ash collection tank after it is full of ash falling from the ash outlet.

[0059] The working process of this utility model is described below:

[0060] like Figures 1 to 5 As shown, damp sawdust enters the lower end of the auger conveyor 32 through the feed hopper 31, and is continuously conveyed to the upper end near the feed port 72 by the screw conveyor 32. At the same time, fuel is added to the combustion chamber 12 through the fuel filling channel 121, causing the fuel to burn and produce an open flame. The open flame continuously heats the lower end of the drying pipe 7 and also heats the air in the drying chamber 11. The air expands in volume, decreases in density, and becomes lighter, thus moving upward and entering the hot air conveying pipe 2 through the hot air outlet 111. It then enters the auger conveyor 32 and the feed port 72 along the hot air conveying pipe 2. The process involves mixing the damp wood chips with the hot air near the feed port 72. Meanwhile, the blower 4 is activated, generating suction. Under this suction, the mixture of damp wood chips and hot air near the feed port 72 is drawn into the drying pipe 7 and continuously falls down along its spiral structure. During this process, the hot air in the drying chamber 11 and the open flame generated by combustion in the combustion chamber 12 continuously and synchronously heat the damp wood chips in the drying pipe 7, causing the moisture in the damp wood chips to evaporate and form water vapor. Finally, the wood chips and water vapor after the moisture has evaporated are discharged to external equipment, such as a cyclone dust collector, through the connecting pipe 6 and the discharge pipe 5. The cyclone dust collector separates the wood chips that have evaporated moisture from the water vapor, resulting in dried wood chips.

[0061] This utility model has the following advantages: The drying pipe 7 is connected to the hot air conveying pipe 2. The drying pipe 7 has a spiral structure inside the drying mechanism 1. The furnace is naturally formed in the middle of the spiral structure. The fire burns and heats in the furnace, so that the drying pipe 7 is heated over a large area without dead corners. At the same time, after the damp wood chips enter the drying pipe 7 from the feed port 72, the heat generated in the furnace and the hot air enter the auger conveyor 32 from the hot air outlet 111 at the top of the drying chamber 11 through the hot air conveying pipe 2 and mix with the damp wood chips. After mixing, it enters the drying pipe 7 from the feed port 72, forming a second synchronous heating. This design can make the heat utilization rate more efficient. Actual tests show that it can reach more than 98%, which can dry a large amount of damp wood chips quickly. This not only greatly increases the drying output, but also achieves the purpose of energy saving. The moisture content in the damp wood chips can also be stably controlled.

[0062] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0063] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0064] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0065] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0066] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0067] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A vertical wood chip dryer, characterized in that, include: Drying mechanism (1), hot air conveying pipe (2), feeding mechanism (3), fan (4), discharge pipe (5), connecting pipe (6) and drying pipe (7); The drying tube (7) is a vertically arranged spiral tubular structure. The drying tube (7) is located inside the drying mechanism (1). The top and bottom ends of the drying tube (7) pass through the side wall of the drying mechanism (1) and are sealed and connected to one end of the feeding mechanism (3) and the connecting tube (6) respectively. The two ends of the hot air conveying pipe (2) are sealed and connected to the top end of the drying mechanism (1) and the feeding mechanism (3) respectively. The two ends of the fan (4) are connected to the end of the connecting tube (6) away from the drying tube (7) and the end of the discharge pipe (5) respectively.

2. The vertical wood chip dryer according to claim 1, characterized in that, The drying mechanism (1) includes: a drying chamber (11), a combustion chamber (12), an ash collection tank (13), and a base (14); the drying chamber (11) is sealed at the top of the base (14), the combustion chamber (12) is disposed on the base (14), the ash collection tank (13) is movably disposed below the base (14), the ash collection tank (13) is disposed below the combustion chamber (12), the drying pipe (7) is disposed in the space between the drying chamber (11) and the base (14), and the combustion chamber (12) is disposed below the drying pipe (7).

3. A vertical wood chip dryer according to claim 2, characterized in that, The feeding mechanism (3) includes a feeding hopper (31) and an auger conveyor (32); the auger conveyor (32) is inclined, and the feeding hopper (31) is located on the lower side wall of the auger conveyor (32), and the feeding hopper (31) is connected to the auger conveyor (32).

4. A vertical wood chip dryer according to claim 3, characterized in that, The top and bottom of the drying pipe (7) correspond one-to-one as the feed port (72) and the discharge port (71). The top and bottom of the drying pipe (7) both pass through the side wall of the drying chamber (11). The feed port (72) is sealed and connected to the upper side wall of the auger conveyor (32). The discharge port (71) is sealed and connected to the end of the connecting pipe (6) away from the fan (4).

5. A vertical wood chip dryer according to claim 4, characterized in that, The top of the drying chamber (11) is provided with a hot air outlet (111), and the two ends of the hot air conveying pipe (2) are sealed and connected to the upper side wall of the auger conveyor (32) and the hot air outlet (111).

6. A vertical wood chip dryer according to claim 5, characterized in that, The connection position of the feed port (72) with the upper side wall of the auger conveyor (32) corresponds to the connection position of the hot air conveying pipe (2) with the upper side wall of the auger conveyor (32).

7. A vertical wood chip dryer according to claim 2, characterized in that, The base (14) includes a base panel (141) and a plurality of support rods (142); the plurality of support rods (142) are arranged around the bottom end of the base panel (141), and the base panel (141) is provided with a plurality of ash outlets (143), the ash outlets (143) being through holes.

8. A vertical wood chip dryer according to claim 7, characterized in that, The combustion chamber (12) is a shell structure set on the base panel (141). The top of the combustion chamber (12) is open and the bottom is connected to the ash outlet (143). A fuel filling channel (121) is provided on the side wall of the combustion chamber (12). The fuel filling channel (121) passes through the side wall of the drying chamber (11) in a sealed manner.

9. A vertical wood chip dryer according to claim 7, characterized in that, The ash collection tank (13) is movably disposed below the base panel (141). The ash collection tank (13) is a shell structure with an open top, and the top of the ash collection tank (13) is connected to the ash outlet (143).

Images