A dewatering drying apparatus

Abstract

The utility model discloses a dehydration drying equipment belongs to drying equipment technical field, including drying storehouse, drying storehouse inside is provided with drying room and combustion furnace, is provided with feeding device and smoke exhaust device outside, wherein, drying storehouse and drying room form hot -blast flow channel between, and combustion furnace is located in hot -blast flow channel, and is close to drying room one side, and the integrated intercommunication of combustion furnace has heat exchange pipe group, and heat exchange pipe group is linked with smoke exhaust device, and drying room is provided with a plurality of mesh in the side wall close to combustion furnace, and drying room is provided with circulating fan in the side wall away from combustion furnace, and feeding device is linked with combustion furnace. The combustion furnace of the equipment is low in work consumption, and high in transmission efficiency, and the hot air can be evenly and rapidly convection in the drying room, can effectively realize drying room internal temperature balance, improve the dehydration drying effect and efficiency of article, and can be widely used in the dehydration drying of flower, fruit and vegetable, chinese herbal medicine, meat product and the like, and has wide application range.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, specifically a dehydration and drying equipment. Background Technology

[0002] Chinese utility model patent CN202322404816.8 discloses an agricultural product drying and sulfur fumigation device, which includes an air supply chamber, a drying and sulfur fumigation chamber, and an electric heating device. The air supply chamber, starting from the air inlet, sequentially includes a primary filter section, a return air section, a blower, a sulfur burner, and an air outlet section. A rack is installed inside the drying and sulfur fumigation chamber. The air outlet section is connected to the drying and sulfur fumigation chamber via an air supply duct, and the return air section is connected to the drying and sulfur fumigation chamber via a return air duct. The blower is electrically connected to the electric heating device. This drying and sulfur fumigation device adds a sulfur fumigation section while circulating hot air, performing sulfur fumigation treatment simultaneously with hot air drying of the product. It also allows for control of sulfur dioxide usage as needed. However, the electric heating device not only consumes a lot of energy but also cannot achieve heat exchange circulation during operation, resulting in high dehydration and drying costs. Furthermore, the air supply duct is located at the top of the drying and sulfur fumigation chamber, and the return air duct is located on one side of the bottom of the chamber. This lack of hot air convection prevents temperature uniformity within the drying and sulfur fumigation chamber, leading to poor dehydration and drying effects. Therefore, further improvements are necessary. Utility Model Content

[0003] The present invention aims to provide a dehydration and drying device to overcome the shortcomings of the prior art.

[0004] A dehydration and drying device designed for this purpose includes a drying chamber, which contains a drying room and a combustion furnace. A feeding device and a smoke exhaust device are located externally. A hot air flow channel is formed between the drying chamber and the drying room. The combustion furnace is located within the hot air flow channel and close to the drying room. A heat exchange tube assembly is integrally connected to the combustion furnace and is connected to the smoke exhaust device. The drying room has multiple mesh openings on its side wall near the combustion furnace, and a circulating fan is installed on its side wall away from the combustion furnace. The feeding device is connected to the combustion furnace.

[0005] The combustion furnace includes a furnace body and at least one heat exchange tube assembly integrally connected to the furnace body. The heat exchange tube assembly includes a first heat exchange tube and a second heat exchange tube. One end of the first heat exchange tube is integrally connected to the upper part of the furnace body, and the other end of the first heat exchange tube is bent downward and connected to a heat exchange tube ash collection box. One end of the second heat exchange tube is connected to the heat exchange tube ash collection box, and the other end of the second heat exchange tube is bent upward and connected to a heat exchange tube smoke collection box. The heat exchange tube smoke collection box is located above the furnace body and is connected to a connecting bend pipe. A smoke collection pipe is connected to the connecting bend pipe and is connected to a smoke exhaust device.

[0006] The lower part of the furnace body is integrally equipped with an air inlet box, a furnace body ash removal box, and a feed pipe. An extension pipe is installed inside the air inlet box, which is connected to the interior of the furnace body and has an igniter mounting base for installing an igniter. A first air inlet pipe and a second air inlet pipe are integrally connected to the air inlet box. The first air inlet pipe is connected to the interior of the furnace body, and the second air inlet pipe is connected to the feed pipe. One end of the feed pipe is connected to the interior of the furnace body, and the other end of the feed pipe extends upward at an angle outside the furnace body and is connected to the feeding device. An air inlet centrifugal fan is installed outside the drying chamber corresponding to the air inlet box. A furnace body ash removal box opening and closing door is installed corresponding to the furnace body ash removal box. A heat exchange tube ash collection box opening and closing door is installed corresponding to the heat exchange tube ash collection box.

[0007] The feeding device includes a feeding bin, a feeding pipe, a feeding screw, a feeding driver, a driver fixing component, and a transmission gear set. The feeding bin has an open top for feeding combustibles, and the bottom of the feeding bin is connected to the top of the feeding pipe. The feeding pipe extends horizontally outside the drying bin, and its inner end is connected to the feed pipe. The outer end of the feeding pipe is fixedly connected to the driver fixing component. The feeding driver is fixedly mounted on the driver fixing component, and its drive shaft is drivenly connected to the transmission gear set. The feeding screw is located inside the feeding pipe and is connected to the transmission gear set.

[0008] The feeding device further includes a bearing housing and a protective cover. The bearing housing is fixedly installed at the outer end of the feeding pipe, and a first bearing and a second bearing arranged along the axis are installed on it. The transmission gear set includes a driving transmission gear, a driven transmission gear, and a transmission chain. The driving transmission gear and the driven transmission gear are driven and engaged by the transmission chain. The feeding screw is rotatably installed on the first bearing and the second bearing and is engaged and connected with the driven transmission gear. The driver fixing component is fixedly installed on the bearing housing. The feeding driver is located on one side of the bearing housing, and its drive shaft is driven and connected to the driving transmission gear. The protective cover is fixedly installed on the driver fixing component and covers the feeding driver, the driving transmission gear, the driven transmission gear, and the transmission chain.

[0009] The exhaust device includes an exhaust centrifugal fan and an exhaust pipe. The exhaust centrifugal fan is fixedly installed on the outer wall of the drying chamber. The exhaust pipe extends laterally in the hot air channel and is fixedly installed on the drying chamber. The volute inlet of the exhaust centrifugal fan is connected to the exhaust pipe (7). The exhaust pipe extends vertically outside the drying chamber and is connected to the volute outlet of the exhaust centrifugal fan.

[0010] The drying room contains a tray drying rack with multiple layers for holding trays, arranged vertically at intervals.

[0011] The bottom of the tray drying rack is equipped with drying rack wheels for movement, and the drying chamber is also equipped with a drying chamber door corresponding to the tray drying rack.

[0012] The top or side of the drying chamber is equipped with an air exchange seat, which is connected to the interior of the drying chamber and is equipped with an air exchange fan.

[0013] The drying chamber is equipped with louvers and an inspection door on the top or side, and the bottom of the drying chamber is equipped with rollers for moving the drying chamber.

[0014] This utility model's combustion furnace uses biomass pellet fuel as a heat source (which can be replaced with natural gas / steam / air source / pure electricity / coal / firewood). During operation, the furnace transfers heat through an integrated heat exchange tube assembly to a hot air flow channel between the drying chamber and the drying room. This not only results in low energy consumption but also high heat transfer efficiency. Furthermore, the drying room's opposite side walls are equipped with circulating fans and multiple mesh openings. The circulating fans blow hot air from the hot air flow channel into the drying room, dehydrating and drying the items placed inside. The hot air in the drying room then flows back to the hot air flow channel through the mesh openings, allowing for continuous circulation between the hot air flow channel and the drying room. This significantly reduces energy consumption. Simultaneously, due to the lateral convection of hot air within the drying room, the air flows evenly and rapidly, effectively achieving temperature balance within the drying room and improving the dehydration and drying effect and efficiency. It can be widely applied to the dehydration and drying of flowers, fruits and vegetables, medicinal herbs, meat products, and other items, making it suitable for a wide range of applications. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the assembly structure of an embodiment of the present utility model.

[0016] Figure 2 This is a schematic diagram of the assembly structure from another perspective of an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the assembly structure from another perspective of an embodiment of the present utility model.

[0018] Figure 4 This is a schematic diagram of the assembly structure of an embodiment of the present invention with the front panel of the drying chamber omitted.

[0019] Figure 5 This is a schematic diagram of the assembly structure from another perspective, omitting the front panel of the drying chamber, according to an embodiment of the present invention.

[0020] Figure 6 This is an exploded structural diagram (partially enlarged) of an embodiment of the present invention.

[0021] Figure 7 This is an exploded structural diagram (partially enlarged) from another perspective of an embodiment of the present invention.

[0022] Figure 8 This is a schematic diagram of the combustion furnace.

[0023] Figure 9 This is a schematic diagram of the combustion furnace from another perspective.

[0024] Figure 10 This is an exploded view of the feeding device.

[0025] Figure 11 This is a schematic diagram of the assembly structure of the feeding device without the protective cover. Detailed Implementation

[0026] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] See Figures 1-11 This dehydration and drying equipment includes a drying chamber 1, which contains a drying room 2 and a combustion furnace 3. A feeding device 4 and a smoke exhaust device 5 are located externally. A hot air flow channel 6 is formed between the drying chamber 1 and the drying room 2. The combustion furnace 3 is located within the hot air flow channel 6 and is close to the drying room 2. A heat exchange tube assembly is integrally connected to the combustion furnace 3 and is connected to the smoke exhaust device 5. The drying room 2 has multiple mesh openings 2.1 on its side wall near the combustion furnace 3, and a circulating fan 2.2 is installed on its side wall away from the combustion furnace 3. The feeding device 4 is connected to the combustion furnace 3.

[0029] The combustion furnace 3 of this equipment uses biomass pellet fuel as a heat source (which can be replaced with natural gas / steam / air source / pure electricity / coal / firewood). During operation, the combustion furnace 3 transfers heat through its integrated heat exchange tube assembly to the hot air flow channel 6 formed between the drying chamber 1 and the drying room 2. This not only results in low energy consumption but also high heat transfer efficiency. Furthermore, the opposite side walls of the drying room 2 are equipped with circulating fans 2.2 and multiple mesh openings 2.1. During operation, the circulating fans 2.2 blow hot air from the hot air flow channel 6 into the drying room 2, and also clean the materials placed inside the drying room 2. The product undergoes dehydration and drying. The hot air in the drying chamber 2 flows back to the hot air channel 6 through multiple mesh openings 2.1, allowing the hot air to circulate between the hot air channel 6 and the drying chamber 2. This significantly reduces energy consumption. Due to the lateral convection of the hot air in the drying chamber 2, the hot air can flow evenly and rapidly inside the drying chamber 2, effectively achieving temperature balance inside the drying chamber 2 and improving the dehydration and drying effect and efficiency of the product. It can be widely used for dehydration and drying of flowers, fruits and vegetables, Chinese medicinal materials, meat products, and other products, with a wide range of applications.

[0030] The direction of hot air flow is as follows: Figure 5 As indicated by the arrow.

[0031] The combustion furnace 3 includes a furnace body 3.1 and at least one heat exchange tube assembly integrally connected to the furnace body 3.1. The heat exchange tube assembly includes a first heat exchange tube 3.2 and a second heat exchange tube 3.3. One end of the first heat exchange tube 3.2 is integrally connected to the upper part of the furnace body 3.1, and the other end of the first heat exchange tube 3.2 is bent downward and connected to a heat exchange tube ash collection box 3.4. One end of the second heat exchange tube 3.3 is connected to the heat exchange tube ash collection box 3.4, and the other end of the second heat exchange tube 3.3 is bent upward and connected to a heat exchange tube smoke collection box 3.5. The heat exchange tube smoke collection box 3.5 is located above the furnace body 3.1 and is connected to a connecting bend 3.6. A smoke collection pipe 7 is connected to the connecting bend 3.6 and is connected to the smoke exhaust device 5.

[0032] This equipment has four heat exchange tube assemblies, which are arranged symmetrically along the left and right direction of the drying chamber 1 and front and back on the outside of the furnace body 3.1. There are two heat exchange tube ash collection boxes 3.4, which are also symmetrically arranged along the left and right direction of the drying chamber 1 on the outside of the furnace body 3.1, so as to connect two first heat exchange tubes 3.2 and second heat exchange tubes 3.3 on the same side respectively. There is one heat exchange tube smoke collection box 3.5, which connects to all four second heat exchange tubes 3.3 at the same time to realize the collection of flue gas.

[0033] Since four first heat exchange tubes 3.2 and second heat exchange tubes 3.3 are integrally connected to the outside of the furnace body 3.1, the heat generated by the furnace body 3.1 can be transferred to the hot air channel 6 over a large area, thus improving the heat exchange efficiency.

[0034] The lower part of the furnace body 3.1 is integrally equipped with an air inlet box 3.7, a furnace body ash removal box 3.8, and a feed pipe 3.9. An extension pipe 3.9 is installed inside the air inlet box 3.7. The extension pipe 3.9 is connected to the interior of the furnace body 3.1 and is equipped with an igniter mounting seat 8 for installing an igniter. A first air inlet pipe 3.10 and a second air inlet pipe 3.11 are integrally connected to the air inlet box 3.7. The first air inlet pipe 3.10 is connected to the interior of the furnace body 3.1, and the second air inlet pipe 3.11 is connected to the feed pipe 3.9. One end of the feed pipe 3.9 is connected to the interior of the furnace body 3.1, and the other end of the feed pipe 3.9 extends upward at an angle outside the furnace body 3.1 and is connected to the feeding device 4.

[0035] The igniter is an electronic igniter, which can ignite the biomass pellet fuel in the furnace body 3.1 when it is working. Since the feed pipe 3.9 is inclined upward, the biomass pellet fuel located in the feed pipe 3.9 can enter the furnace body 3.1 by its own weight.

[0036] The drying chamber 1 is equipped with an air inlet centrifugal fan 9 corresponding to the air inlet box 3.7, a furnace body ash cleaning box 3.8 with an openable and closed door 10, and a heat exchange tube ash collection box 3.4 with an openable and closed door 11.

[0037] When the centrifugal fan 9 is working, it blows the air outside the drying chamber 1 into the air inlet box 3.7. The air in the air inlet box 3.7 enters the furnace body 3.1 and the feed pipe 3.9 through the first air inlet pipe 3.10 and the second air inlet pipe 3.11, respectively, to provide oxygen for the biomass pellet fuel burning in the furnace body 3.1, improve the combustion efficiency of the biomass pellet fuel, and blow the biomass pellet fuel in the feed pipe 3.9 into the furnace body 3.1 to avoid blockage of the feed pipe 3.9.

[0038] Users can clean the furnace body ash cleaning box 3.8 and the heat exchange tube ash collection box 3.4 by opening the furnace body ash cleaning box switch door 10 and the heat exchange tube ash collection box switch door 11, respectively, so as to reduce the risk of ash accumulation on the first heat exchange tube 3.2 and the second heat exchange tube 3.3, and the maintenance cost is low.

[0039] The feeding device 4 includes a feeding bin 4.1, a feeding pipe 4.2, a feeding screw 4.3, a feeding driver 4.4, a driver fixing part 4.5, and a transmission gear set. The feeding bin 4.1 has an open top for adding combustible material to facilitate the addition of biomass pellet fuel. The bottom of the feeding bin 4.1 is connected to the top of the feeding pipe 4.2. The biomass pellet fuel placed in the feeding bin 4.1 enters the feeding pipe 4.2 by its own gravity. The feeding pipe 4.2 extends horizontally outside the drying chamber 1, and its inner end is connected to the feed pipe 3.9. The outer end of the feeding pipe 4.2 is fixedly connected to the driver fixing part 4.5. The feeding driver 4.4 is fixedly mounted on the driver fixing part 4.5, and its drive shaft is driven by the transmission gear set. The feeding screw 4.3 is located inside the feeding pipe 4.2 and is connected to the transmission gear set.

[0040] The feeding device 4 also includes a bearing housing 4.6 and a protective cover 4.7. The bearing housing 4.6 is fixedly installed at the outer end of the feeding pipe 4.2, and a first bearing 4.8 and a second bearing 4.9 arranged along the axis are installed on it. The transmission gear set includes a driving transmission gear 4.10, a driven transmission gear 4.11 and a transmission chain. The driving transmission gear 4.10 and the driven transmission gear 4.11 are connected by a transmission chain. The feeding screw 4.3 is rotatably mounted on the first bearing 4.8 and the second bearing 4.9 and is connected to the driven transmission gear 4.11. The first bearing 4.8 and the second bearing 4.9 arranged along the axis serve as the feeding screw 4. 3 provides rotational assistance to ensure stable rotation of the feed screw 4.3. The driver fixing part 4.5 is fixedly mounted on the bearing housing 4.6. The feed driver 4.4 is located on one side of the bearing housing 4.6, and its drive shaft is drivenly connected to the drive transmission gear 4.10. The protective cover 4.7 is fixedly mounted on the driver fixing part 4.5 and covers the feed driver 4.4, drive transmission gear 4.10, driven transmission gear 4.11 and transmission chain to prevent foreign objects from affecting the transmission between the feed driver 4.4, drive transmission gear 4.10, driven transmission gear 4.11 and transmission chain, so as to ensure effective transmission between the above components.

[0041] Biomass pellet fuel is placed in the feeding bin 4.1 through the hopper opening. When the feeding driver 4.4 is working, it drives the drive gear 4.10 to rotate. When the drive gear 4.10 rotates, it drives the driven gear 4.11 to rotate through the transmission chain. When the driven gear 4.11 rotates, it drives the feeding screw 4.3 to rotate on the first bearing 4.8 and the second bearing 4.9. When the feeding screw 4.3 rotates, it can transport the biomass pellet fuel that falls into the feeding pipe 4.2 to the feed pipe 3.9.

[0042] The smoke exhaust device 5 includes a smoke exhaust centrifugal fan 5.1 and a smoke exhaust pipe 5.2. The smoke exhaust centrifugal fan 5.1 is fixedly installed on the outer wall of the drying chamber 1. The smoke collection pipe 7 extends laterally inside the hot air flow channel 6 and is fixedly installed on the drying room 2. The air inlet of the volute of the smoke exhaust centrifugal fan 5.1 is connected to the smoke collection pipe 7. The smoke exhaust pipe 5.2 extends vertically outside the drying chamber 1 and is connected to the air outlet of the volute of the smoke exhaust centrifugal fan 5.1.

[0043] Through the coordinated action of the hot air duct 6, the exhaust centrifugal fan 5.1, and the exhaust pipe 5.2, directional emission of waste gas is achieved. During operation, the exhaust centrifugal fan 5.1 efficiently extracts waste gas from the furnace body 3.1 through the hot air duct 6, while the exhaust pipe 5.2 centrally discharges the waste gas outside the drying chamber 1, preventing backflow and ensuring efficient heat exchange. This forced exhaust design not only improves the negative pressure stability of the combustion furnace 3 but also allows for flexible control of the exhaust volume through the speed regulation function of the exhaust centrifugal fan 5.1, adapting to different drying load requirements.

[0044] The drying room 2 contains a tray drying rack 12, which has multiple support layers 12.1 for holding trays. The multiple support layers 12.1 are arranged vertically at intervals.

[0045] Different trays are placed on different support layers 12.1, so that vertical gaps are formed between adjacent trays. These vertical gaps are parallel to the hot air flowing in the drying chamber 2. That is, the hot air in the drying chamber 2 can flow along each vertical gap and effectively contact the items to be dehydrated and dried on the trays. This not only avoids obstruction of the flow of hot air, but also allows the hot air to flow evenly and quickly inside the drying chamber 2.

[0046] The bottom of the tray drying rack 12 is provided with drying rack rollers 12.2 for movement. The drying chamber 1 is also provided with a drying chamber door 13 corresponding to the tray drying rack 12. When the drying chamber door 13 is open, the tray drying rack 12 can move inside and outside the drying chamber 2 through the drying rack rollers 12.2, and can complete the placement and removal of the tray.

[0047] In addition, a ramp rack 17 is provided on the drying chamber 1. The ramp rack 17 corresponds to the opening and closing door 13 of the drying chamber, so that the tray drying rack 12 can enter or leave the drying chamber 1 via the ramp rack 17.

[0048] A ventilation seat 14 is provided on the top or side of the drying chamber 1. The ventilation seat 14 is connected to the interior of the drying chamber 1 and is equipped with a ventilation fan.

[0049] The top or side of the drying chamber 1 is equipped with louvers 15 and maintenance switch door 16, and the bottom of the drying chamber 1 is equipped with drying chamber rollers 1.1 for movement.

[0050] The ventilation seat 14 is located at the top of the drying chamber 1. The ventilation fan and the louvered window 15 work together to introduce fresh air from outside the drying chamber 1 into the drying chamber 1, thereby quickly cooling the drying chamber 1, the drying room 2, and the combustion furnace 3. The maintenance door 16 facilitates internal maintenance by the user. In addition, the entire equipment can be moved by the drying chamber casters 1.1, improving user convenience.

[0051] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A dehydration and drying device, comprising a drying chamber (1), characterized in that: The drying chamber (1) is equipped with a drying room (2) and a combustion furnace (3) inside, and a feeding device (4) and a smoke exhaust device (5) are provided outside. A hot air flow channel (6) is formed between the drying chamber (1) and the drying room (2). The combustion furnace (3) is located in the hot air flow channel (6) and close to the side of the drying room (2). A heat exchange tube group is integrally connected to the combustion furnace (3). The heat exchange tube group is connected to the smoke exhaust device (5). The drying room (2) has multiple mesh holes (2.1) on the side wall close to the combustion furnace (3). A circulating fan (2.2) is provided on the side wall away from the combustion furnace (3). The feeding device (4) is connected to the combustion furnace (3).

2. The dehydration and drying equipment according to claim 1, characterized in that: The combustion furnace (3) includes a furnace body (3.1) and at least one heat exchange tube assembly integrally connected to the furnace body (3.1). The heat exchange tube assembly includes a first heat exchange tube (3.2) and a second heat exchange tube (3.3). One end of the first heat exchange tube (3.2) is integrally connected to the upper part of the furnace body (3.1). The other end of the first heat exchange tube (3.2) is bent downward and connected to a heat exchange tube ash collection box (3.4). One end of the second heat exchange tube (3.3) is connected to the heat exchange tube ash collection box (3.4). The other end of the second heat exchange tube (3.3) is bent upward and connected to a heat exchange tube smoke collection box (3.5). The heat exchange tube smoke collection box (3.5) is located above the furnace body (3.1) and is connected to a connecting bend (3.6). A smoke collection pipe (7) is connected to the connecting bend (3.6). The smoke collection pipe (7) is connected to the smoke exhaust device (5).

3. The dehydration and drying equipment according to claim 2, characterized in that: The lower part of the furnace body (3.1) is integrally provided with an air inlet box (3.7), a furnace body ash removal box (3.8), and a feed pipe (3.9). An extension pipe (3.9) is provided inside the air inlet box (3.7). The extension pipe (3.9) is connected to the interior of the furnace body (3.1) and is provided with an igniter mounting seat (8) for installing an igniter. A first air inlet pipe (3.10) and a second air inlet pipe (3.11) are integrally connected to the air inlet box (3.7). The first air inlet pipe (3.10) is connected to the interior of the furnace body (3.1). The second air inlet pipe (3.11) is connected to the feed pipe (3.9). One end of the feed pipe (3.9) is connected to the inside of the furnace body (3.1), and the other end of the feed pipe (3.9) extends upwards and out of the furnace body (3.1) and is connected to the feeding device (4). The drying chamber (1) is equipped with an air inlet centrifugal fan (9) corresponding to the air inlet box (3.7), a furnace body ash cleaning box (3.8) opening and closing door (10), and a heat exchange tube ash collection box (3.4) opening and closing door (11).

4. The dehydration and drying equipment according to claim 3, characterized in that: The feeding device (4) includes a feeding bin (4.1), a feeding pipe (4.2), a feeding screw (4.3), a feeding driver (4.4), a driver fixing part (4.5), and a transmission gear set. The feeding bin (4.1) has an open top for feeding combustibles. The bottom of the feeding bin (4.1) is connected to the top of the feeding pipe (4.2). The feeding pipe (4.2) extends horizontally outside the drying bin (1) and its inner end is connected to the feed pipe (3.9). The outer end of the feeding pipe (4.2) is fixedly connected to the driver fixing part (4.5). The feeding driver (4.4) is fixedly mounted on the driver fixing part (4.5) and its drive shaft is driven and connected to the transmission gear set. The feeding screw (4.3) is located inside the feeding pipe (4.2) and is connected to the transmission gear set.

5. The dehydration and drying equipment according to claim 4, characterized in that: The feeding device (4) further includes a bearing housing (4.6) and a protective cover (4.7). The bearing housing (4.6) is fixedly installed at the outer end of the feeding pipe (4.2), and a first bearing (4.8) and a second bearing (4.9) arranged along the axis are installed on it. The transmission gear set includes a driving transmission gear (4.10), a driven transmission gear (4.11), and a transmission chain. The driving transmission gear (4.10) and the driven transmission gear (4.11) are driven and engaged by the transmission chain. The feeding screw (4.3) is rotatably mounted on the first shaft. The drive unit (4.5) is fixedly mounted on the bearing housing (4.6) and the second bearing (4.9), and is connected to the driven transmission gear (4.11). The drive unit (4.5) is fixedly mounted on the bearing housing (4.6). The feed drive (4.4) is located on one side of the bearing housing (4.6), and its drive shaft is connected to the drive transmission gear (4.10). The cover (4.7) is fixedly mounted on the drive unit (4.5) and covers the feed drive (4.4), the drive transmission gear (4.10), the driven transmission gear (4.11), and the transmission chain.

6. The dehydration and drying equipment according to claim 2, characterized in that: The exhaust device (5) includes an exhaust centrifugal fan (5.1) and an exhaust pipe (5.2). The exhaust centrifugal fan (5.1) is fixedly installed on the outer wall of the drying chamber (1). The smoke collection pipe (7) extends laterally inside the hot air channel (6) and is fixedly installed on the drying room (2). The volute inlet of the exhaust centrifugal fan (5.1) is connected to the smoke collection pipe (7). The exhaust pipe (5.2) extends vertically outside the drying chamber (1) and is connected to the volute outlet of the exhaust centrifugal fan (5.1).

7. The dehydration and drying equipment according to claim 1, characterized in that: The drying room (2) contains a tray drying rack (12), which has multiple support layers (12.1) for holding trays. The multiple support layers (12.1) are arranged vertically at intervals.

8. The dehydration and drying equipment according to claim 7, characterized in that: The bottom of the tray drying rack (12) is provided with drying rack wheels (12.2) for movement, and the drying chamber (1) is also provided with a drying chamber opening and closing door (13) corresponding to the tray drying rack (12).

9. The dehydration and drying equipment according to claim 1, characterized in that: The drying chamber (1) is provided with an air exchange seat (14) on the top or side. The air exchange seat (14) is connected to the interior of the drying chamber (1) and is provided with an air exchange fan.

10. The dehydration and drying equipment according to claim 1, characterized in that: The drying chamber (1) is provided with louvers (15) and maintenance switch door (16) on the top or side, and the drying chamber (1) is provided with drying chamber rollers (1.1) for movement at the bottom.

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