A multi-layer reciprocating drying device
Through the innovative design of the multi-layer reciprocating drying equipment, the problems of large equipment footprint and serious heat loss have been solved, achieving efficient heat energy utilization and uniform drying effect, which is suitable for nut coating and roasting processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANTAI MAOYUAN FOOD MASCH MFG CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-31
AI Technical Summary
Existing nut coating and roasting equipment has a large footprint due to its split design and significant heat loss during hot air conveying, which affects the drying effect.
The multi-layer reciprocating drying equipment adopts a combination design of hot air furnace, drying furnace, burner, circulating fan, drive shaft and stainless steel conveyor belt to achieve internal circulation and uniform delivery of hot air. Combined with the return air duct to return the incompletely utilized heat energy, heat loss is reduced.
It effectively reduces the equipment footprint, improves thermal energy utilization efficiency, ensures uniform drying of materials, and avoids heat loss during hot air conveying.
Smart Images
Figure CN224580649U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nut coating and baking processing technology, specifically a multi-layer reciprocating drying device. Background Technology
[0002] In the nut coating and roasting process, surface drying after coating is a key step connecting roasting and shaping with finished product packaging. Its core function is to fix the liquid seasoning sprayed on the surface. If the drying is not up to standard, the seasoning is prone to dripping, clumping or falling off due to residual moisture, resulting in poor product appearance and shortened shelf life. If the drying is excessive, it will destroy the coating structure formed in the early roasting stage.
[0003] However, existing technologies have the following problems in practical use:
[0004] Most drying equipment consists of two parts: a hot air furnace and a dryer. This separate design increases the floor space required. Also, because it is divided into two parts, the hot air furnace needs to heat the air first before it is transported to the dryer through pipes. The hot air transport pipes are usually made of metal, and during the flow, they will dissipate heat to the surrounding environment through the pipe walls. As the floor space increases and the pipes become longer, the insulation effect becomes worse and the heat loss is greater. Utility Model Content
[0005] To overcome the aforementioned deficiencies of the prior art, this utility model provides a multi-layer reciprocating drying device, which solves the problems in the prior art:
[0006] The equipment occupies a large area, raising the issue of reducing heat loss.
[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a multi-layer reciprocating drying device, including a hot air furnace, a drying oven for drying is fixedly connected to one end of the hot air furnace, a burner for heating air is fixedly installed on the outer surface of the hot air furnace, a circulating fan is fixedly installed at the bottom of the hot air furnace, a drive shaft is clamped to the inner wall of the drying oven, a stainless steel conveyor belt is sleeved on the surface of the drive shaft, and a return air pipe for recirculation is fixedly installed inside the drying oven.
[0008] Optionally, a fixing frame is fixedly installed on one side of the upper end of the drying oven, and a feed chute is snapped into one end of the fixing frame.
[0009] Optionally, a motor for providing power is fixedly installed on the other side of the upper end of the drying oven, and a hinge shaft is snapped onto one side of the drying oven.
[0010] Optionally, one end of the hinge shaft is engaged with an insulated door for blocking, and the front of the insulated door is provided with a lock body for sealing.
[0011] Optionally, a dehumidification pipe shell is fixedly installed at the middle of the upper end of the drying oven, and a regulating valve for controlling the dehumidification rate is inserted into the outer surface of the dehumidification pipe shell.
[0012] Optionally, a discharge port for discharging material is fixedly installed on one side of the interior of the drying oven, and a support column is threadedly connected to the bottom of the drying oven, with a base fixedly installed at the bottom of the column.
[0013] Optionally, a staircase is threadedly connected to one side of the hot air furnace, and a handrail is fixedly connected to the surface of the staircase.
[0014] Optionally, the bottom of the staircase is threadedly connected to a wheel frame, and the wheel frame is internally fitted with wheels for movement.
[0015] This utility model provides a multi-layer reciprocating drying device, which has the following beneficial effects:
[0016] This multi-layer reciprocating drying equipment features a coordinated design of a hot air furnace, a drying oven, a burner, a circulating fan, a drive shaft, a stainless steel conveyor belt, and a return air duct. The fixed connection between the hot air furnace and the drying oven reduces the equipment's footprint. The burner heats the internal air, and the circulating fan allows the freshly heated air to circulate directly within the equipment, minimizing heat loss during air transport. The drive shaft and stainless steel conveyor belt are designed to transport the material, ensuring that the hot air penetrates the material evenly for drying. The return air duct allows the hot air, after heat exchange with the material, to cool and return to the hot air furnace for reheating. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a side view structural diagram of the present invention;
[0019] Figure 3 This is a schematic diagram of the internal structure of the drying oven of this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the present invention from the left side view.
[0021] Figure 5 This is a schematic diagram of the structure of the present invention from the right side view.
[0022] In the diagram: 1. Burner; 2. Circulating fan; 3. Fixing frame; 4. Feed chute; 5. Exhaust pipe shell; 6. Regulating valve; 7. Motor; 8. Return air duct; 9. Stainless steel conveyor belt; 10. Discharge port; 11. Staircase; 12. Handrail; 13. Insulated door; 14. Hinge shaft; 15. Lock body; 16. Drive shaft; 17. Hot air furnace; 18. Wheel; 19. Wheel frame; 20. Column; 21. Base; 22. Drying oven. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0024] Please see Figures 1 to 5 This utility model embodiment provides a multi-layer reciprocating drying device, which is applied to nut coating and roasting processing. This embodiment improves the structure of the drying device to reduce energy consumption. Specifically, a return air duct is added inside the device. Therefore, as a preferred embodiment, the drying device is a multi-layer reciprocating drying device, which can internally circulate hot air to reduce heat loss.
[0025] Please see Figures 1 to 5 This utility model provides a technical solution: a multi-layer reciprocating drying device, which is mainly used in the process of coating and baking nuts.
[0026] The device includes a hot air furnace 17, one end of which is fixedly connected to a drying oven 22 for drying. A burner 1 for heating air is fixedly installed on the outer surface of the hot air furnace 17. A circulating fan 2 is fixedly installed at the bottom of the hot air furnace 17. A drive shaft 16 is snapped into the inner wall of the drying oven 22. A stainless steel conveyor belt 9 is sleeved on the surface of the drive shaft 16. A return air duct 8 for recirculation is fixedly installed inside the drying oven 22.
[0027] In this embodiment, the hot air temperature is regulated by the hot air furnace 17 to ensure uniform hot air temperature. The burner 1 heats the air and provides hot air. The circulating fan 2 circulates the heated hot air. The drive shaft 16 rotates to move the stainless steel conveyor belt 9. The stainless steel conveyor belt 9 transports materials so that the hot air dries the materials. After the hot air dries the materials, the heat energy in the air decreases and flows back to the hot air furnace 17 for reheating through the return air pipe 8.
[0028] In the above embodiment, as a preferred solution, a fixing frame 3 is fixedly installed on one side of the upper end of the drying oven 22. One end of the fixing frame 3 is clamped to the feeding trough 4. The feeding trough 4 is fixed by the fixing frame 3 to prevent the feeding trough 4 from falling off. The feeding trough 4 can store a small amount of material and buffer the feeding.
[0029] In the above embodiment, as a preferred option, a motor 7 for providing power is fixedly installed on the other side of the upper end of the drying oven 22, and a hinge shaft 14 is snapped onto one side of the drying oven 22. The speed of the stainless steel conveyor belt 9 can be adjusted by the motor 7 to adjust the drying time of the material, and one end of the hinge shaft 14 can be connected to allow rotational movement.
[0030] In the above embodiment, as a preferred solution, one end of the hinge shaft 14 is engaged with a heat-insulating door 13 for blocking, and the front of the heat-insulating door 13 is provided with a lock body 15 for sealing. The heat-insulating door 13 can be closed by cooperating with the hinge shaft 14, and the lock body 15 can seal the heat-insulating door 13, effectively blocking the heat from spreading outward and improving the efficiency of heat energy utilization.
[0031] In the above embodiment, as a preferred option, a dehumidification pipe shell 5 is fixedly installed at the middle of the upper end of the drying oven 22. A regulating valve 6 for controlling the discharge volume is inserted into the outer surface of the dehumidification pipe shell 5. The water vapor evaporated by the heated material is discharged to the outside through the dehumidification pipe shell 5, and the regulating valve 6 controls the discharge volume of water vapor to achieve the best drying effect.
[0032] In the above embodiment, as a preferred solution, a discharge port 10 for discharging material is fixedly installed on one side of the interior of the drying oven 22, and a support column 20 is threadedly connected to the bottom of the drying oven 22. A base 21 is fixedly installed at the bottom of the column 20. The dried finished material is collected through the discharge port 10. The column 20 is used to support the entire drying equipment to avoid the equipment from directly contacting the ground. The base 21 expands the contact area and evenly transfers the load to the ground.
[0033] In the above embodiment, as a preferred option, a staircase 11 is threadedly connected to one side of the hot air furnace 17, and a handrail 12 is fixedly connected to the surface of the staircase 11. The staircase 11 allows workers to easily maintain the device above, and the handrail 12 protects people working at heights from falling.
[0034] In the above embodiment, as a preferred solution, the bottom of the staircase 11 is threadedly connected to a wheel frame 19, and a wheel 18 for movement is snapped into the inside of the wheel frame 19. The wheel frame 19 is used to install and fix the wheel 18, so that the wheel 18 passes through a stable frame and can be easily pushed and moved on the ground.
[0035] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.
[0036] In this invention, the working steps of the device are as follows:
[0037] First, check the core components to confirm that the burner 1, hot air furnace 17 and circulating fan 2 are connected normally, the stainless steel conveyor belt 9 is clean and free of residual material to avoid contaminating new material, the return air pipe 8 and the dehumidification pipe shell 5 are unobstructed to ensure smooth hot air circulation and dehumidification, and check the seal by closing the insulation door 13 through the hinge shaft 14 and locking it with the lock body 15 to ensure the internal seal of the drying oven 22 to prevent hot air leakage and heat loss. Check whether the column 20 and the base 21 are stable to avoid vibration during equipment operation that may affect material conveying.
[0038] Secondly, pour the material into the feeding trough 4. The small amount of material can be temporarily stored in its own capacity to play a buffering role and avoid uneven material distribution on the conveyor belt caused by the inconsistent speed of manual feeding. Start the motor 7, drive the transmission shaft 16 to rotate, and drive the stainless steel conveyor belt 9 to transport the material along the inside of the drying oven 22 at a set speed.
[0039] Then, the burner 1 is started, and the combustion gas heats the air in the hot air furnace 17 to form hot air. The circulating fan 2 sends the hot air in the hot air furnace 17 into the drying furnace 22. The hot air enters from the bottom air vent of the drying furnace 22, penetrates the material on the stainless steel conveyor belt 9, and the hot air contacts the surface of the material to remove moisture. The hot air temperature is low after one heating, and it still contains some residual heat. It flows back to the hot air furnace 17 through the return air pipe 8 and is reheated by the burner 1.
[0040] Finally, after the material has been dried in multiple layers, it is conveyed by the last layer of stainless steel conveyor belt 9 to the discharge port 10 on one side of the drying oven 22 and falls directly into the collection container to complete the baking and drying of the material. After the feeding stops, wait for the conveyor belt to send out all the remaining material, then turn off the burner 1, the circulating fan 2 and the motor 7 in sequence, and clean the stainless steel conveyor belt 9 and the inside of the drying oven 22.
[0041] Although 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, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A multi-tiered reciprocating drying apparatus comprising a hot-air furnace (17), characterized in that: One end of the hot air furnace (17) is fixedly connected to a drying oven (22) for drying. A burner (1) for heating air is fixedly installed on the outer surface of the hot air furnace (17). A circulating fan (2) is fixedly installed at the bottom of the hot air furnace (17). A drive shaft (16) is clamped to the inner wall of the drying oven (22). A stainless steel conveyor belt (9) is sleeved on the surface of the drive shaft (16). A return air pipe (8) for recirculation is fixedly installed inside the drying oven (22).
2. A multi-tiered reciprocating drying apparatus as claimed in claim 1, wherein: A fixing frame (3) is fixedly installed on one side of the upper end of the drying oven (22), and a feed trough (4) is snapped into one end of the fixing frame (3).
3. A multi-tiered reciprocating drying apparatus as claimed in claim 1, wherein: A motor (7) for providing power is fixedly installed on the other side of the upper end of the drying oven (22), and a hinge shaft (14) is snapped onto one side of the drying oven (22).
4. A multi-tiered reciprocating drying apparatus as claimed in claim 3, wherein: One end of the hinge shaft (14) is engaged with an insulated door (13) for blocking, and the front of the insulated door (13) is provided with a lock body (15) for sealing.
5. A multi-tiered reciprocating drying apparatus as claimed in claim 1, wherein: The upper middle part of the drying oven (22) is fixedly installed with a dehumidification pipe shell (5), and a regulating valve (6) for controlling the dehumidification rate is inserted into the outer surface of the dehumidification pipe shell (5).
6. A multi-tiered reciprocating drying apparatus as claimed in claim 1, wherein: The drying oven (22) has a discharge port (10) for discharging material fixedly installed on one side inside. The bottom of the drying oven (22) is threadedly connected to a column (20) for support. The bottom of the column (20) is fixedly installed with a base (21).
7. A multi-tiered reciprocating drying apparatus as claimed in claim 1, wherein: A staircase (11) is threadedly connected to one side of the hot air furnace (17), and a handrail (12) is fixedly connected to the surface of the staircase (11).
8. A multi-tiered reciprocating drying apparatus as claimed in claim 7, wherein: The bottom of the staircase (11) is threadedly connected to a wheel frame (19), and the wheel frame (19) is fitted with wheels (18) for movement.