A drying device for wood pallet raw materials

CN224771910UActive Publication Date: 2026-09-18JIANGSU TONGXIN WOOD CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202521923719.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-08
Publication Date
2026-09-18
Estimated Expiration
2035-09-08

AI Technical Summary

Technical Problem

这部分流失的热风携带了大量热量,不仅未能对原材料干燥产生积极作用,还造成了能源的严重浪费,降低了热量利用率

Benefits of technology

[0027]1. Due to the use of electric heating rods, the heating cylinder assembly can heat up quickly, creating a stable high-temperature environment for drying raw materials. Combined with the rotation of the drying cylinder assembly, the raw materials are constantly turned over, avoiding uneven heating in certain areas, ensuring efficient evaporation of moisture, and ensuring that the moisture content of the raw materials meets the standards.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224771910U_ABST
    Figure CN224771910U_ABST
Patent Text Reader

Abstract

The utility model relates to wood tray processing technical field, concretely relates to a kind of drying equipment of wood tray raw material, it includes: mounting bracket, heating cylinder subassembly is connected with on mounting bracket inclination, the inner hole of heating cylinder subassembly is concentric with drying cylinder subassembly, the inner hole of drying cylinder subassembly two ends is respectively connected with left support shaft subassembly and right support shaft subassembly, the outer end of left support shaft subassembly is connected with rotary drive subassembly, the outer end of right support shaft subassembly is connected with support seat subassembly, and rotary drive subassembly is connected with feeding hopper piece on;Heating cylinder subassembly includes heating cylinder body and several annular array setting electric heating rod, heating cylinder body is set on the outside of drying cylinder subassembly and is equipped with heat flow cavity between both, electric heating rod one end is arranged in the end of heating cylinder body and is inserted into heat flow cavity, the cylinder wall of heating cylinder body is equipped with annular hollow cavity, inert gas is injected into annular hollow cavity.The utility model structure is reasonable, and the utilization of heat has been improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of wooden pallet processing technology, and in particular to a drying device for wooden pallet raw materials. Background Technology

[0002] In the processing and production of wooden pallets, the drying of raw materials is a crucial preliminary step to ensure the quality of the finished product. Since wood raw materials often contain high moisture content in their natural state, if they are directly introduced into the molding process, excessive humidity can easily lead to problems such as cracking, deformation, and structural loosening in the finished product, even affecting the load-bearing capacity and service life of the wooden pallet. Therefore, it is essential to use professional drying equipment to dehydrate the raw materials and strictly control their humidity within the acceptable range required by the molding process, ensuring that the subsequently produced wooden pallets possess stable physical properties and qualified product quality.

[0003] Current equipment used for drying raw materials for wooden pallets typically consists of a drying drum, a rotary drive, and a hot air system. In operation, the pulverized wood raw materials are first evenly fed into the drying drum. Then, the rotary drive starts, causing the drum to slowly rotate around its axis, continuously tumbling and turning the raw materials inside to prevent uneven drying caused by prolonged static placement. Simultaneously, the hot air system operates continuously, heating the air to a set temperature using heating elements and delivering it to the drying drum at a stable speed, ensuring thorough contact between the hot air and the constantly turning raw materials. Under the influence of the hot air, the moisture inside the raw materials gradually evaporates and is expelled with the warm, humid airflow, ultimately achieving precise control of the raw material's moisture content and resulting in dried raw materials with a moisture content that meets process standards and maintains high consistency.

[0004] However, in actual production applications, the inventors discovered that existing drying equipment has significant shortcomings in hot air utilization efficiency. When the hot air generated by the hot air device blows onto the surface of the raw materials inside the drying drum, only a portion of the hot air can fully contact the raw materials and effectively act on the evaporation process of moisture in the raw materials, truly exerting the drying efficiency; while another portion of the hot air, due to limitations in the sealing performance of the drying drum and defects in the airflow guidance design, fails to effectively exchange heat with the raw materials and is directly lost to the external environment from the inlet, outlet, or equipment gaps of the drying drum. This lost hot air carries a large amount of heat, not only failing to play a positive role in drying the raw materials but also causing serious energy waste and reducing heat utilization rate. Utility Model Content

[0005] The main technical problem solved by this utility model is to provide a drying device for raw materials of wooden pallets, which improves the utilization rate of heat.

[0006] To solve the above-mentioned technical problems, the present invention provides a drying device for wooden pallet raw materials, comprising: a mounting frame, a heating cylinder assembly inclinedly connected to the mounting frame, a drying cylinder assembly concentrically arranged in the inner hole of the heating cylinder assembly, a left support shaft assembly and a right support shaft assembly respectively connected to the inner holes at both ends of the drying cylinder assembly, a rotary drive assembly connected to the outer end of the left support shaft assembly, a support base assembly connected to the outer end of the right support shaft assembly, and a feeding hopper for feeding raw materials into the inner cavity of the drying cylinder assembly connected to the rotary drive assembly;

[0007] The heating cylinder assembly includes a heating cylinder body and several electric heating rods arranged in a ring array. The heating cylinder body is sleeved on the outside of the drying cylinder assembly and a heat flow cavity is provided between the two. One end of each electric heating rod passes through the end of the heating cylinder body and extends into the heat flow cavity. The cylinder wall of the heating cylinder body is provided with a ring-shaped hollow cavity, and an inert gas is injected into the ring-shaped hollow cavity.

[0008] The outer annular array of the drying cylinder assembly is connected to several strip plates, which are suitable for driving the heat generated by the electric heating rod to rotate and flow.

[0009] By adopting the above technical solution, during operation, the heating cylinder assembly is first activated. The internal electric heating rod heats up rapidly upon energization, quickly filling the heat flow chamber. Subsequently, the heat is gradually transferred to the inner cavity of the drying cylinder assembly through its wall structure, creating a stable high-temperature environment for subsequent raw material drying. After the equipment has preheated to a suitable temperature, the pre-crushed wood raw materials are uniformly conveyed into the inner cavity of the drying cylinder assembly via the conveyor hopper. At this time, the rotary drive assembly is activated, transmitting power to the drying cylinder assembly through the left support shaft assembly, driving the drying cylinder assembly to rotate stably around its axis. As the drying cylinder assembly rotates, the wood raw materials in its inner cavity are continuously agitated and stirred, preventing material accumulation and uneven heating. Simultaneously, the heat transferred from the heat flow chamber to the inner cavity fully contacts the agitated raw materials, efficiently evaporating moisture and ultimately achieving the required moisture content. The annular hollow cavity of the heating cylinder body is pre-filled with an inert gas, specifically argon. Argon, as a monatomic gas, has larger intermolecular gaps and gentler molecular thermal motion, resulting in a much lower thermal conductivity than air, thus possessing excellent thermal insulation properties. This design effectively blocks heat transfer from the heat flow cavity to the external environment, significantly reducing heat loss, improving the overall heat utilization rate of the drying system, and lowering production energy costs. Furthermore, during the rotation of the drying cylinder assembly, several strip plates on its outer surface rotate simultaneously. The rotation of these strip plates disturbs the heat within the heat flow cavity, promoting uniform airflow circulation and allowing heat to be transferred more evenly throughout the cavity, enhancing the uniformity of raw material drying.

[0010] In a preferred embodiment, the present invention can be further configured as follows: the heating cylinder body includes a hollow heat-insulating cylinder, and annular heat-insulating shells are respectively connected to both ends of the hollow heat-insulating cylinder. The hollow inner cavity of the hollow heat-insulating cylinder is connected to the hollow inner cavity of the annular heat-insulating shell. There is a gap between the inner wall of the annular heat-insulating shell and the outer circle of the drying cylinder assembly. A transition tube is arranged in a ring array on one of the annular heat-insulating shells, and an air inlet is connected to the outer side of the other annular heat-insulating shell. The transition tube is sealed to the annular heat-insulating shell, and one end of the electric heating rod passes through the transition tube.

[0011] By adopting the above technical solution, the reasonable gap between the inner wall of the annular insulation shell and the outer circle of the drying cylinder assembly prevents interference between the drying cylinder assembly and the heating cylinder assembly during rotation. The air inlet connected to the outer side of the annular insulation shell facilitates the injection of inert gas into the annular hollow cavity, improving operational convenience. The use of a transition tube facilitates electrical connection with external wiring.

[0012] In a preferred embodiment, the present invention can be further configured such that: the inner wall of the hollow heat-insulating cylinder is connected in a ring array with a number of buckles equal to the number of electric heating rods, and the electric heating rods are provided inside the buckles.

[0013] By adopting the above technical solution, the buckle design facilitates the insertion of the electric heating rod into the inner cavity of the buckle, enabling a detachable connection and improving the ease of installation.

[0014] In a preferred embodiment, the present invention can be further configured such that the drying cylinder assembly includes a drying cylinder body, and a plurality of scraper plates are connected at intervals to the inner wall of the drying cylinder body.

[0015] By adopting the above technical solution, the scraper is connected to the inner wall of the drying cylinder. As the drying cylinder rotates, the scraper can flip and scrape the raw materials, so that the raw materials can fully contact the heat, thereby improving the heat utilization rate and drying efficiency.

[0016] In a preferred embodiment, the present invention can be further configured such that: the left support shaft assembly includes a left rotating shaft, one end of the left rotating shaft is fitted with an annular seat, the outer ring of the annular seat is connected with a plurality of fixed rods, and the outer ends of the fixed rods are connected to the inner wall of the drying cylinder.

[0017] By adopting the above technical solution, the left rotating shaft is connected to the inner wall of the drying cylinder through a ring seat and several fixed rods, so that the left rotating shaft can drive the drying cylinder to rotate.

[0018] In a preferred embodiment, the present invention can be further configured such that: the rotary drive assembly includes a left support base and a motor, the other end of the left rotating shaft passes through the left support base, the motor is mounted on the left support base and drives the left rotating shaft to rotate, and the lower end of the left support base is connected to the mounting bracket.

[0019] By adopting the above technical solution, the left support provides a fixed support for the motor. When the motor runs, it generates driving force, which acts on the left rotating shaft to make it rotate. The left rotating shaft then transmits the power to the drying cylinder, causing it to rotate as well.

[0020] In a preferred embodiment, the present invention can be further configured such that: the right support shaft assembly includes a right rotating shaft, one end of the right rotating shaft is fitted with an annular seat two, the outer circle of the annular seat two is connected with a plurality of connecting rods, and the outer end of the connecting rods is connected to the inner wall of the drying cylinder.

[0021] By adopting the above technical solution, the right rotating shaft is connected to the inner wall of the drying cylinder through several connecting rods on the annular seat 2, which facilitates the right rotating shaft to provide indirect support to the drying cylinder.

[0022] In a preferred embodiment, the present invention can be further configured such that: the support assembly includes an annular seat three and a right support seat, the annular seat three being rotatably connected to the other end of the right rotation shaft, and the annular seat three being connected to the right support seat.

[0023] By adopting the above technical solution, the right support seat fixes the annular seat three, and the annular seat three is rotatably connected to the right rotating shaft, that is, the right support seat indirectly supports the right rotating shaft.

[0024] In a preferred embodiment, the present invention can be further configured such that: the hopper component includes a hopper body and an inclined conveying pipe connected to its lower opening, the inclined lower end of the inclined conveying pipe extending into the inner cavity of the upper inclined end of the drying cylinder assembly, and two U-shaped rods are connected at intervals to the outer surface of the hopper body, the U-shaped rods being connected to the left support shaft assembly.

[0025] By adopting the above technical solution, the crushed raw materials are first temporarily stored in the inner cavity of the hopper body, and then transported to the inner cavity at the upper end of the drying cylinder assembly by means of the guiding action of the inclined conveying pipe, thereby achieving a stable supply of raw materials. The left support shaft assembly constructs an indirect fixing structure through two U-shaped rods, which reliably supports and positions the hopper body, ensuring that it maintains a stable posture during the material conveying process.

[0026] In summary, this utility model has at least one of the following beneficial technical effects:

[0027] 1. Due to the use of electric heating rods, the heating cylinder assembly can heat up quickly, creating a stable high-temperature environment for drying raw materials. Combined with the rotation of the drying cylinder assembly, the raw materials are constantly turned over, avoiding uneven heating in certain areas, ensuring efficient evaporation of moisture, and ensuring that the moisture content of the raw materials meets the standards.

[0028] 2. Argon gas is injected into the annular hollow cavity of the heating cylinder body. Argon gas has good thermal insulation properties, which greatly reduces heat loss, improves heat utilization, and reduces energy consumption costs.

[0029] 3. The drying cylinder assembly drives the strip plate to rotate, disturbing the heat flow chamber and forming a uniform airflow circulation, allowing heat to be transferred evenly and enhancing the uniformity of raw material drying. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0031] Figure 1 This is a schematic diagram of a preferred embodiment of a drying device for wooden pallet raw materials according to the present invention.

[0032] Figure 2 yes Figure 1 A schematic diagram of the structure connecting the middle drying cylinder assembly, the left support shaft assembly, the right support shaft assembly, and the strip plate.

[0033] Figure 3 yes Figure 1 A schematic diagram of the connection between the heating cylinder body and the electric heating rod.

[0034] Figure 4 yes Figure 1 A schematic diagram of the U-shaped rod.

[0035] Figure 5 yes Figure 1 A schematic diagram of the middle buckle structure.

[0036] In the diagram: 1. Mounting frame; 20. Heating cylinder assembly; 30. Drying cylinder assembly; 40. Left support shaft assembly; 50. Right support shaft assembly; 60. Rotary drive assembly; 70. Support base assembly; 80. Feed hopper component;

[0037] 9. Strip panel; 11. Buckle;

[0038] 21. Heating cylinder body; 22. Electric heating rod; 23. Heat flow cavity; 24. Annular hollow cavity;

[0039] 211. Hollow insulation cylinder; 212. Annular insulation shell; 213. Transition tube; 214. Inflation nozzle;

[0040] 31. Drying cylinder; 32. Scraper plate;

[0041] 41. Left rotating shaft; 42. Annular seat one; 43. Fixed rod;

[0042] 51. Right-hand rotating shaft; 52. Annular seat two; 53. Connecting rod;

[0043] 61. Left support base; 62. Motor;

[0044] 71. Circular seat three; 72. Right support seat;

[0045] 81. Hopper body; 82. Inclined conveying pipe; 83. U-shaped rod. Detailed Implementation

[0046] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0047] It should be noted that these figures are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0048] Reference Figures 1-5 This utility model discloses a drying device for raw materials of wooden pallets, comprising: a mounting frame 1, a heating cylinder assembly 20 inclinedly connected to the mounting frame 1, a drying cylinder assembly 30 concentrically arranged in the inner hole of the heating cylinder assembly 20, a left support shaft assembly 40 and a right support shaft assembly 50 respectively connected to the inner holes at both ends of the drying cylinder assembly 30, a rotary drive assembly 60 connected to the outer end of the left support shaft assembly 40, a support base assembly 70 connected to the outer end of the right support shaft assembly 50, and a feeding hopper 80 for feeding raw materials into the inner cavity of the drying cylinder assembly 30 connected to the rotary drive assembly 60.

[0049] The hopper assembly 80 includes a hopper body 81 and an inclined conveying pipe 82 connected to its lower opening. The inclined lower end of the conveying pipe 82 extends into the inner cavity of the upper inclined end of the drying cylinder assembly 30. Two U-shaped rods 83 are spaced apart on the outer surface of the hopper body 81, and the U-shaped rods 83 are connected to the left support shaft assembly 40. The crushed raw materials are first temporarily stored in the inner cavity of the hopper body 81, and then conveyed to the inner cavity of the upper inclined end of the drying cylinder assembly 30 by means of the guiding action of the inclined conveying pipe 82, thereby achieving a stable supply of raw materials. The left support shaft assembly 40 forms an indirect fixing structure through the two U-shaped rods 83, providing reliable support and positioning for the hopper body 81, ensuring that it maintains a stable posture during the conveying process.

[0050] The drying cylinder assembly 30 includes a drying cylinder body 31, and a plurality of scraper blades 32 are connected at intervals to the inner wall of the drying cylinder body 31. By connecting the scraper blades 32 to the inner wall of the drying cylinder body 31, the scraper blades 32 can flip and scrape the raw materials as the drying cylinder body 31 rotates, so that the raw materials are in full contact with heat, thereby improving the heat utilization rate and drying efficiency.

[0051] The left support shaft assembly 40 includes a left rotating shaft 41. One end of the left rotating shaft 41 is fitted with an annular seat 42. A plurality of fixed rods 43 are connected to the outer annular array of the annular seat 42. The outer ends of the fixed rods 43 are connected to the inner wall of the drying cylinder 31. The left rotating shaft 41 is connected to the inner wall of the drying cylinder 31 through the annular seat 42 and the plurality of fixed rods 43, so that the rotating left rotating shaft 41 can drive the drying cylinder 31 to rotate.

[0052] The rotary drive assembly 60 includes a left support base 61 and a motor 62. The other end of the left rotating shaft 41 passes through the left support base 61. The motor 62 is mounted on the left support base 61 and drives the left rotating shaft 41 to rotate. The lower end of the left support base 61 is connected to the mounting bracket 1. The left support base 61 provides a fixed support for the motor 62. When the motor 62 runs, it generates a driving force that acts on the left rotating shaft 41 to make it rotate. The left rotating shaft 41 then transmits the power to the drying cylinder 31, causing it to rotate as well.

[0053] The right support shaft assembly 50 includes a right rotating shaft 51. One end of the right rotating shaft 51 is fitted with an annular seat 52. A plurality of connecting rods 53 are connected in an annular array on the outer circle of the annular seat 52. The outer ends of the connecting rods 53 are connected to the inner wall of the drying cylinder 31. The right rotating shaft 51 is connected to the inner wall of the drying cylinder 31 through the plurality of connecting rods 53 on the annular seat 52, which facilitates the right rotating shaft 51 to provide indirect support to the drying cylinder 31.

[0054] The support assembly 70 includes an annular seat 71 and a right support seat 72. The annular seat 71 is rotatably connected to the other end of the right rotating shaft 51 and is connected to the right support seat 72. The right support seat 72 fixes the annular seat 71, and the annular seat 71 and the right rotating shaft 51 are rotatably connected, that is, the right support seat 72 indirectly supports the right rotating shaft 51.

[0055] The heating cylinder assembly 20 includes a heating cylinder body 21 and a plurality of electric heating rods 22 arranged in a ring array. The heating cylinder body 21 is sleeved on the outside of the drying cylinder assembly 30 and a heat flow cavity 23 is provided between the two. One end of the electric heating rod 22 passes through the end of the heating cylinder body 21 and extends into the heat flow cavity 23. The cylinder wall of the heating cylinder body 21 is provided with an annular hollow cavity 24, and an inert gas is injected into the annular hollow cavity 24.

[0056] The heating cylinder body 21 includes a hollow insulated cylinder 211, with annular insulated shells 212 connected to both ends of the hollow insulated cylinder 211. The hollow inner cavity of the hollow insulated cylinder 211 is connected to the hollow inner cavity of the annular insulated shell 212. There is a gap between the inner wall of the annular insulated shell 212 and the outer circle of the drying cylinder assembly 30. A transition tube 213 is arranged in a ring array on one of the annular insulated shells 212, and an air inlet 214 is connected to the outer side of the other annular insulated shell 212. The transition tube 213 is sealed to the annular insulated shell 212, and one end of the electric heating rod 22 passes through the transition tube 213. Because a reasonable gap is reserved between the inner wall of the annular insulated shell 212 and the outer circle of the drying cylinder assembly 30, the drying cylinder assembly 30 will not interfere with the heating cylinder assembly 20 during rotation. Because the outer surface of the annular insulation shell 212 is connected to the inflation nozzle 214, it is convenient to inject inert gas into the annular hollow cavity 24 through the inflation nozzle 214, which improves the convenience of operation. The use of the transition tube 213 facilitates electrical connection with external wires.

[0057] The inner wall of the hollow insulation cylinder 211 is connected in a ring array with a number of clips 11 equal to the number of electric heating rods 22, and the electric heating rods 22 are arranged inside the clips 11. The clips 11 facilitate the insertion of the electric heating rods 22 into the inner cavity of the clips 11, achieving a detachable connection and improving the convenience of installation.

[0058] The outer annular array of the drying cylinder assembly 30 is connected to several strip plates 9, which are suitable for driving the heat generated by the electric heating rod 22 to rotate and flow.

[0059] The implementation principle of this embodiment is as follows: During use, the heating cylinder assembly 20 is first activated. The internal electric heating rod 22 heats up rapidly after being energized, quickly filling the heat flow cavity 23 with a large amount of heat. Subsequently, the heat is gradually transferred to the inner cavity of the drying cylinder assembly 30 through the cylinder wall structure, creating a stable high-temperature environment for subsequent raw material drying. After the equipment has preheated to a suitable temperature, the pre-crushed wood raw materials are uniformly conveyed into the inner cavity of the drying cylinder assembly 30 through the conveying hopper 80. At this time, the rotary drive assembly 60 is activated, transmitting power to the drying cylinder assembly 30 through the left support shaft assembly 40, driving the drying cylinder assembly 30 to rotate stably around its axis. As the drying cylinder assembly 30 rotates, the wood raw materials in its inner cavity are continuously agitated and stirred, preventing material accumulation and uneven heating. Simultaneously, the heat transferred from the heat flow cavity 23 to the inner cavity fully contacts the agitated raw materials, efficiently evaporating the moisture in the raw materials, ultimately achieving the required moisture content for the raw materials. An inert gas, specifically argon, is pre-filled into the annular hollow cavity 24 of the heating cylinder body 21. As argon is a monatomic molecular gas, its intermolecular gaps are larger, its molecular thermal motion is more gradual, and its thermal conductivity is much lower than that of air, thus possessing excellent thermal insulation properties. This design effectively blocks the transfer of heat from the heat flow cavity 23 to the external environment, significantly reducing heat loss, improving the heat utilization rate of the entire drying system, and lowering production energy costs. Furthermore, during the rotation of the drying cylinder assembly 30, several strip plates 9 on its outer surface rotate simultaneously. The rotation of the strip plates 9 disturbs the heat within the heat flow cavity 23, promoting uniform airflow circulation within the cavity, thereby allowing heat to be transferred more evenly through the drying cylinder assembly 30 to all parts of the inner cavity, enhancing the uniformity of raw material drying.

[0060] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A wood pallet raw material drying apparatus comprising: The mounting frame (1) is characterized in that a heating cylinder assembly (20) is inclinedly connected to the mounting frame (1), a drying cylinder assembly (30) is concentrically provided in the inner hole of the heating cylinder assembly (20), a left support shaft assembly (40) and a right support shaft assembly (50) are respectively connected to the inner holes at both ends of the drying cylinder assembly (30), a rotary drive assembly (60) is connected to the outer end of the left support shaft assembly (40), a support base assembly (70) is connected to the outer end of the right support shaft assembly (50), and a feeding hopper (80) for feeding raw materials into the inner cavity of the drying cylinder assembly (30) is connected to the rotary drive assembly (60). The heating cylinder assembly (20) includes a heating cylinder body (21) and a plurality of electric heating rods (22) arranged in a ring array. The heating cylinder body (21) is sleeved on the outside of the drying cylinder assembly (30) and a heat flow cavity (23) is provided between the two. One end of the electric heating rod (22) passes through the end of the heating cylinder body (21) and extends into the heat flow cavity (23). The cylinder wall of the heating cylinder body (21) is provided with a ring hollow cavity (24), and an inert gas is injected into the ring hollow cavity (24). The outer annular array of the drying cylinder assembly (30) is connected to several strip plates (9), which are suitable for driving the heat generated by the electric heating rod (22) to rotate and flow.

2. The wood pallet raw material drying apparatus according to claim 1, wherein The heating cylinder body (21) includes a hollow heat-insulating cylinder (211), and annular heat-insulating shells (212) are respectively connected to both ends of the hollow heat-insulating cylinder (211). The hollow inner cavity of the hollow heat-insulating cylinder (211) is connected to the hollow inner cavity of the annular heat-insulating shell (212). There is a gap between the inner wall of the annular heat-insulating shell (212) and the outer circle of the drying cylinder assembly (30). A transition tube (213) is arranged in annular array on one of the annular heat-insulating shells (212), and an air inlet (214) is connected to the outer side of the other annular heat-insulating shell (212). The transition tube (213) is sealed to the annular heat-insulating shell (212), and one end of the electric heating rod (22) passes through the transition tube (213).

3. The wood pallet raw material drying apparatus according to claim 2, wherein The inner wall of the hollow heat-insulating cylinder (211) is connected in a ring array with buckles (11) in the same number as the electric heating rods (22), and the electric heating rods (22) are provided inside the buckles (11).

4. The wood pallet raw material drying apparatus according to claim 1, wherein The drying cylinder assembly (30) includes a drying cylinder body (31), and a plurality of scraper blades (32) are connected at intervals to the inner wall of the drying cylinder body (31).

5. The wood pallet raw material drying apparatus according to claim 4, wherein The left support shaft assembly (40) includes a left rotating shaft (41), one end of which is fitted with an annular seat (42), and the outer ring of the annular seat (42) is connected with a plurality of fixed rods (43), the outer end of which is connected to the inner wall of the drying cylinder (31).

6. The wood pallet raw material drying apparatus according to claim 5, wherein The rotary drive assembly (60) includes a left support base (61) and a motor (62). The other end of the left rotating shaft (41) passes through the left support base (61). The motor (62) is mounted on the left support base (61) and drives the left rotating shaft (41) to rotate. The lower end of the left support base (61) is connected to the mounting bracket (1).

7. The wood pallet raw material drying apparatus according to claim 4, wherein The right support shaft assembly (50) includes a right rotating shaft (51), one end of which is fitted with an annular seat (52), and the outer ring of the annular seat (52) is connected with a plurality of connecting rods (53), the outer end of which is connected to the inner wall of the drying cylinder (31).

8. The wood pallet raw material drying apparatus according to claim 6, wherein The support assembly (70) includes an annular seat three (71) and a right support seat (72). The annular seat three (71) is rotatably connected to the other end of the right rotating shaft (51) and is connected to the right support seat (72).

9. The wood pallet raw material drying apparatus according to claim 1, wherein The hopper assembly (80) includes a hopper body (81) and an inclined conveying pipe (82) connected to its lower opening. The inclined lower end of the inclined conveying pipe (82) extends into the inner cavity of the upper inclined end of the drying cylinder assembly (30). Two U-shaped rods (83) are connected at intervals to the outer surface of the hopper body (81). The U-shaped rods (83) are connected to the left support shaft assembly (40).