Efficient drying spiral equipment

Abstract

The utility model discloses efficient drying spiral equipment which comprises a motor speed reducer, a coupler, a head bearing, a support, a first shell, a first spiral shaft, a second shell, a second spiral shaft, a third shell, a third spiral shaft, a hanging bearing, an air distribution spray pipe, a heater and a fan. The shell I, the shell II and the shell III are sequentially connected end to end through flanges to form a shell main body of the equipment; the first spiral shaft, the second spiral shaft and the third spiral shaft are sequentially and coaxially connected through the hanging bearings to form a spiral conveying assembly. The motor speed reducer is in power connection with the first spiral shaft through the coupler. The air distribution spray pipe is mounted on the shell I; the head bearing and the support are installed at the feeding end of the first shell and used for supporting the first spiral shaft. And the heater and the fan are mounted on the shell II, so that the materials can be efficiently and uniformly heated, and meanwhile, the materials can be conveyed.

Description

A high-efficiency drying spiral device Technical Field

[0001] This utility model relates to the field of material handling equipment technology, specifically a high-efficiency drying spiral device. Background Technology

[0002] In traditional production lines, materials must first pass through a conventional screw conveyor before being transferred to independent heating equipment. This process is cumbersome, energy-intensive, and prone to material stagnation and uneven heating. Conventional screw conveyors have a simple structure, only serving a conveying function, and are suitable for materials at normal temperature and with low viscosity, but cannot meet heating requirements.

[0003] To solve the heating problem, a method was once proposed that involves setting a jacket at the bottom of the shell and introducing media such as steam or heat transfer oil to heat the material through the metal surface of the shell. This method was initially applied in the chemical industry. However, indirect conduction heating relies on the contact surface, and there are dead zones in heat transfer for high-viscosity materials. Large-diameter spiral pipes are also prone to heating lag in the central area.

[0004] Later, there were built-in heating elements, such as electric heating tubes or heat-conducting rods embedded in the spiral shaft. Although this can improve heating efficiency, it poses a risk of localized overheating. Heat-sensitive materials are prone to deterioration in high-temperature zones due to prolonged residence time, requiring precise flow rate-temperature matching design. The chemical, food, and recycling industries have an urgent need for continuous and energy-efficient production, and urgently require equipment that integrates conveying and drying. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides a high-efficiency drying spiral device that can efficiently and uniformly heat materials while simultaneously conveying them.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-efficiency drying spiral device includes a motor reducer, a coupling, a head bearing and support, a first housing, a first spiral shaft, a second housing, a third housing, a third spiral shaft, a hanger bearing, an air distribution nozzle, a heater, and a fan. The first, second, and third housings are connected end-to-end via flanges to form the main body of the device. The first, second, and third spiral shafts are coaxially connected via the hanger bearings to form a spiral conveying assembly. The motor reducer is poweredly connected to the first spiral shaft via the coupling. The air distribution nozzle is mounted on the first housing. The head bearing and support are mounted at the feed end of the first housing to support the first spiral shaft. The heater and fan are mounted on the second housing.

[0008] Further preferably, it also includes a tail bearing and a support, which are installed at the discharge end of the housing three to support the spiral shaft three.

[0009] Furthermore, the heater is equipped with a temperature controller;

[0010] Further optimization reveals that the motor reducer is a frequency converter.

[0011] Further preferably, a thermometer is installed between the air distribution nozzle and the heater.

[0012] Further preferably, the hanger bearing is connected to a lubrication unit; the lubrication unit is fixed on the housing and communicates with the oil injection hole of the hanger bearing.

[0013] Further preferred, the upper end of the housing is provided with a feed inlet and the lower end is provided with a maintenance port, the lower inner side of the housing is provided with a maintenance port and the outer side is provided with a discharge port.

[0014] This utility model has the following beneficial effects:

[0015] This utility model discloses a high-efficiency drying spiral device that can achieve efficient and uniform heating of materials while conveying them; it can also convey materials over long distances and operates reliably and stably. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the overall structure of a high-efficiency drying spiral device according to this utility model;

[0017] Attached reference numerals: 1. Motor reducer; 2. Coupling; 3. Head bearing and support; 4. Housing 1; 5. Screw shaft 1; 6. Housing 2; 7. Screw shaft 2; 8. Housing 3; 9. Screw shaft 3; 10. Tail bearing and support; 11. Lubrication unit; 12. Hanging bearing; 13. Air distribution nozzle; 14. Thermometer; 15. Heater; 16. Fan; 17. Feed inlet; 18. Inspection port 1; 19. Inspection port 2; 20. Discharge port. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and relevant knowledge. Obviously, the described applications are only some embodiments of the present invention, and not all embodiments.

[0019] The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] Referring to Figure 1, a high-efficiency drying spiral device includes a motor reducer 1, a coupling 2, a head bearing and support 3, a first housing 4, a first spiral shaft 5, a second housing 6, a second spiral shaft 7, a third housing 8, a third spiral shaft 9, a hanging bearing 12, an air distribution nozzle 13, a heater 15, and a fan 16. The first housing 4, the second housing 6, and the third housing 8 are connected end-to-end by flanges to form the main body of the device. The first spiral shaft 5, the second spiral shaft 7, and the third spiral shaft 9 are coaxially connected by the hanging bearing 12 to form a spiral conveying assembly. The motor reducer 1 is poweredly connected to the first spiral shaft 5 through the coupling 2. The air distribution nozzle 13 is installed on the first housing 4. The head bearing and support 3 are installed at the feed end of the first housing 4 to support the first spiral shaft 5. The heater 15 and the fan 16 are installed on the second housing 6.

[0021] In this utility model, the power transmission part: the motor reducer 1 is controlled by frequency conversion, and the speed can be adjusted as needed. The power is stably transmitted to the screw shaft 5 through the coupling 2, providing the operating power for the screw conveyor assembly.

[0022] Support section: The head bearing and support 3 are installed at the feed end of the housing 4 to support the screw shaft 5 and ensure its stable rotation.

[0023] Shell section: Shell 1 (4), Shell 2 (6), and Shell 3 (8) are connected end to end by flanges to form the main body of the shell, which serves as the external frame of the equipment, accommodates the internal components, and provides space for material conveying and drying.

[0024] Screw conveyor section: Screw shaft 1 (5), screw shaft 2 (7), and screw shaft 3 (9) are connected coaxially in sequence via hanger bearings (12) to form a screw conveyor assembly. Under the action of power, the material is conveyed by rotation.

[0025] Hot air supply section: The air distribution nozzle 13 is installed on the housing 4, which can blow in the hot air 16 and heat it by the heater 15 and spray it out evenly, so that the hot air can fully contact the material and achieve uniform drying. The heater 15 is equipped with a temperature controller, which can automatically and accurately control the temperature, while the blower 16 is responsible for providing the power for the flow of hot air.

[0026] This invention can efficiently and uniformly heat materials while simultaneously conveying them, meeting the continuous and energy-saving production needs of industries such as chemical, food, and recycling. It can transport materials over long distances, operates reliably and stably, and is easy to maintain. Automatic and precise temperature control and automatic interlocking tracking and matching speed prevent localized overheating and deterioration of heat-sensitive materials. Self-lubricating bearings extend the equipment's service life.

[0027] In this invention, heating and temperature control: the heater 15 is automatically controlled by a temperature controller, which can accurately control the temperature; a thermometer 14 is installed at the high-temperature hot air outlet to monitor the temperature in real time.

[0028] Power and transmission: The motor reducer 1 adopts frequency conversion control and the speed is adjustable. The power is transmitted to the screw shaft assembly through the coupling 2 to realize material conveying.

[0029] Air distribution system: Air distribution nozzle 13 can evenly distribute air, so that hot air can fully contact the material and achieve uniform drying.

[0030] Lubrication system: The lubrication unit 11 is fixed on the housing and communicates with the oil injection hole of the hanger bearing 12. The hanger bearing is self-lubricating, which extends the service life of the bearing.

[0031] Overall installation: The connected housing and spiral shaft are installed and fixed on the head bearing and support seat 3 and the tail bearing and support seat 10; the electric heater 14 and the fan 15 are fixed to the housing 6.

[0032] This invention also includes a tail bearing and support 10, which is installed at the discharge end of the housing 38 to support the screw shaft 39. When the equipment transports materials over long distances, this component effectively distributes the axial and radial loads borne by the screw shaft 39, preventing equipment vibration and wear caused by uneven stress, and greatly improving the reliability and service life of the screw shaft assembly. Simultaneously, the rational design and installation of the tail bearing and support 10 enable the screw shaft 39 to stably transport materials to the discharge end, ensuring the continuity and efficiency of the material transport process, and providing crucial support for the equipment to achieve stable and reliable material transport functions.

[0033] In this invention, the heater 15 is equipped with a temperature controller to monitor the temperature of the heater in real time and control it within a set range to ensure the stability of the drying temperature. This helps to improve the drying effect and product quality consistency, and prevents the material from being damaged due to excessive temperature or from being insufficiently dried due to insufficient temperature.

[0034] In this utility model, the motor reducer 1 is a frequency converter. The frequency converter can continuously and accurately adjust the motor speed by changing the power supply frequency according to actual production needs, thereby flexibly controlling the rotation speed of the screw shaft.

[0035] A thermometer 14 is installed between the air distribution nozzle 13 and the heater 15. This thermometer 14 can monitor the temperature of the hot air output from the heater 15 and about to enter the air distribution nozzle 13 in real time, obtaining the real-time temperature data closest to the heat source. A lubrication unit 11 is connected to the hanger bearing 12. The lubrication unit 11 is fixed on the housing 4 and communicates with the oil injection hole of the hanger bearing 12. The lubrication unit 11 can inject lubricating oil into the hanger bearing 12 at regular intervals and in a measured amount, ensuring that the bearing always maintains a good lubrication state during high-speed operation, reducing frictional resistance and wear, and extending the service life of the bearing.

[0036] The upper end of shell 4 has a feed inlet 17, and the lower end has a maintenance port 18. The lower inner side of shell 8 has a maintenance port 29, and the outer side has a discharge port 20. The feed inlet 17 at the upper end provides a channel for materials to enter the equipment, facilitating connection with the previous production stage and realizing continuous material conveying and drying. The lower maintenance port 18 allows staff to directly inspect, clean, or repair components such as the spiral shaft and air distribution nozzle inside shell 4 during equipment maintenance, without disassembling the entire equipment, improving maintenance efficiency and reducing maintenance costs. The lower inner maintenance port 19 of shell 8 allows staff to enter the equipment to inspect and maintain components such as the spiral shaft 9, tail bearing, and support 10, ensuring the normal operation of key components at the end of the equipment. The outer discharge port 20 is the output channel for dried materials, connecting with subsequent production stages to realize the smooth transfer of materials and complete the entire conveying and drying process.

[0037] Example 1: A high-efficiency drying spiral device, referring to Figure 1, has the air distribution nozzle 13 fixed together with the housing 4; the housing 4, housing 6, and housing 8 are connected as a whole by flanges. The spiral shaft 5, spiral shaft 7, and spiral shaft 9 are connected as a whole by the hanger bearing 12; the connected housing and spiral shaft are installed and fixed as a whole on the head bearing and support seat 3 and the tail bearing and support seat 10; after the motor reducer 1 is in place, the connected housing assembly and spiral shaft assembly are assembled as a whole by the coupling 2.

[0038] Fix the electric heater 14 and the fan 15 to the housing 6; install the thermometer 14 at the high temperature hot air outlet; fix the lubrication unit 11 on the housing and connect it to the oil injection hole of the hanging bearing 12.

[0039] Start the machine for a trial run without load; once the temperature reaches the specified value, feed the material to be dried into the inlet, match the appropriate conveying speed, and after the hot air has fully dried it, convey the material to the required position through the screw shaft blades and discharge it from the outlet. The entire conveying and drying process is automatically controlled by PLC.

[0040] Although some embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, and all such changes and alterations should fall within the scope of the present invention.

Claims

1. A high efficiency drying screw apparatus, characterized by, The equipment includes a motor reducer (1), a coupling (2), a head bearing and support (3), a housing 1 (4), a screw shaft 1 (5), a housing 2 (6), a screw shaft 2 (7), a housing 3 (8), a screw shaft 3 (9), a hanging bearing (12), an air distribution nozzle (13), a heater (15), and a fan (16). The housing 1 (4), housing 2 (6), and housing 3 (8) are connected end to end by flanges to form the main body of the equipment. The screw shaft 1 (5), screw shaft 2 (7), and screw shaft 3 (9) are connected coaxially by the hanging bearing (12) to form a screw conveying assembly. The motor reducer (1) is poweredly connected to the screw shaft 1 (5) through the coupling (2). The air distribution nozzle (13) is installed on the housing 1 (4). The head bearing and support (3) are installed at the feed end of the housing 1 (4) to support the screw shaft 1 (5). The heater (15) and the fan (16) are installed on the housing 2 (6).

2. The high-efficiency drying spiral device according to claim 1, characterized in that, It also includes a tail bearing and support (10), which is installed at the discharge end of the housing three (8) to support the spiral shaft three (9).

3. A high efficiency drying screw apparatus as claimed in claim 2, wherein, The heater (15) is equipped with a temperature controller.

4. A high efficiency drying screw apparatus as claimed in claim 1, wherein, The motor reducer (1) is a frequency converter.

5. The high-efficiency drying spiral device according to claim 1, characterized in that, A thermometer (14) is installed between the air distribution nozzle (13) and the heater (15).

6. A high efficiency drying screw apparatus as claimed in claim 1, wherein, The hanger bearing (12) is connected to a lubrication unit (11); the lubrication unit (11) is fixed on the housing (4) and communicates with the oil injection hole of the hanger bearing (12).

7. A high efficiency drying screw apparatus as claimed in claim 1, wherein, The upper end of the housing (4) is provided with a feed inlet (17), and the lower end is provided with an inspection port (18).

8. A high efficiency drying screw apparatus as claimed in claim 1, wherein, The lower inner side of the shell three (8) is provided with an inspection port two (19), and the outer side is provided with a discharge port (20).

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