CN-224215770-U - Drying device

Abstract

The utility model relates to a drying device, which belongs to the technical field of forage drying and comprises a drying box, a mesh belt conveyor, a material homogenizing frame, a material guiding base, an air outlet hopper, an air duct type electric heater, an air-air heat exchanger, an air inlet fan and a high-power centrifugal fan, wherein the mesh belt conveyor, the material homogenizing frame, the material guiding base and the air outlet hopper are all arranged in the drying box, and the air outlet hopper, the air duct type electric heater, the air-air heat exchanger and the air inlet fan are sequentially communicated. According to the utility model, the centrifugal fan is arranged, and a negative pressure low-pressure environment can be caused by the centrifugal fan, so that evaporation of moisture in forage at a lower temperature can be accelerated in a boiling point reducing manner, the drying rate is improved, damage of high temperature to nutrition is reduced, and the hot air circulation module is arranged, so that fresh cold air entering the hot air furnace can be preheated by discharged damp and hot waste gas still containing heat, thereby remarkably reducing fuel consumption of the hot air furnace, reducing operation cost and improving total heat efficiency of the system.

Inventors

• WANG SHENGNAN
• CHEN MINGDONG
• LU QIANG
• LIU LEI
• LIU XUEJI
• ZHANG MI
• YE ZI
• YANG ZHE
• SHI ZHE
• LI YUNHAO

Assignees

• 汉滨区畜牧兽医中心

Dates

Publication Date

20260508

Application Date

20250609

Claims (8)

1. 1. The drying device comprises a drying box (1), a mesh belt conveyor (2), a material homogenizing frame (3), a material guiding base (4), an air outlet hopper (7), an air duct type electric heater (8), an air-air heat exchanger (9), an air inlet fan (10) and a high-power centrifugal fan (11), and is characterized in that the mesh belt conveyor (2), the material homogenizing frame (3), the material guiding base (4) and the air outlet hopper (7) are all arranged in the drying box (1), the air outlet hopper (7), the air duct type electric heater (8), the air-air heat exchanger (9) and the air inlet fan (10) are sequentially communicated, the drying box (1) is provided with a fodder feeding hopper (5) and a fodder discharging hopper (6), the material homogenizing frame (3) is rotationally connected with a material homogenizing spiral rod (12), the material homogenizing frame (3) is provided with a driving motor (13), and the driving end of the driving motor (13) is connected with the material homogenizing spiral rod (12) through a coupler, and the drying box (1), the high-power centrifugal fan (11) and the air heat exchanger (9) are sequentially communicated.
2. 2. A drying apparatus according to claim 1, characterized in that the outer wall of the homogenizing screw (12) is provided with two sets of screw blades, the two sets of screw blades being oppositely directed.
3. 3. A drying device according to claim 1, characterized in that the fodder feeding hopper (5) and the fodder discharging hopper (6) are both provided with hydraulic telescopic sealing doors (14), the material guiding base (4) is evenly provided with supporting springs (15), the supporting springs (15) are provided with vibrating plates (16), and the vibrating plates (16) are provided with vibrating motors (17).
4. 4. A drying apparatus according to claim 1, characterized in that the gas-gas heat exchanger (9) is fixedly connected with an exhaust pipe (18), and the drying box (1) is provided with a negative pressure sensor (19).
5. 5. A drying apparatus according to claim 1, characterized in that the air suction volume of the high-power centrifugal fan (11) is greater than 1.25 times the sum of the steam volume generated by the air intake fan (10) and the forage water evaporation.
6. 6. The drying device according to claim 1, wherein the impeller of the high-power centrifugal fan (11) is made of 2205 duplex stainless steel, a glass fiber reinforced plastic coating is arranged, a shell is made of 316L stainless steel, fluororubber is arranged, a main shaft is made of stainless steel, and a quick-opening access door is arranged.
7. 7. A drying apparatus according to claim 1, characterized in that the inlet air duct of the high-power centrifugal fan (11) is provided with a protective screen.
8. 8. A drying apparatus according to claim 1, characterized in that the high-power centrifugal fan (11) is in communication with the heating channel of the air-air heat exchanger (9), and the electric air duct heater (8) and the air intake fan (10) are in communication with the ventilation duct of the air-air heat exchanger (9).

Description

Drying device Technical Field The utility model relates to the technical field of forage drying, in particular to a drying device. Background The agricultural forage needs to quickly reduce the moisture content to a safe storage level, so as to inhibit microbial activity, prevent mildew and spoilage, and preserve the nutritive value to the maximum extent, thereby facilitating long-term safe storage, maintaining the color and luster and palatability, reducing weather dependence and ensuring the production plan. Through retrieving, the chinese patent of present publication No. CN202221059339.5 discloses a fodder drying device for raising cattle, utilizes the dispersion pole to disperse the fodder of inlet pipe input, improves the area of contact of fodder and air, and the heating lamp of being convenient for fully dries the fodder, improves the efficiency of fodder stoving, utilizes the rolling disc to drive slider reciprocating motion from top to bottom, and the slider drives movable plate and dispersion pole reciprocating motion from top to bottom to make the dispersion pole pick up the fodder constantly, thereby disperse the fodder, improve the dispersion efficiency of fodder. The technical scheme has the following defects that although the forage can be uniformly conveyed through the dispersing rod by the aid of the drying device, the imported forage can be more uniform, in the actual use process, the temperature of hot air is generally lower than 100 ℃, the forage is dried in a low-temperature environment, the drying efficiency is lower, the forage drying efficiency is further improved, the drying device is provided with a centrifugal fan, the centrifugal fan can be used for causing a negative pressure low-pressure environment, the evaporation of moisture in the forage is accelerated at a lower temperature in a mode of reducing the boiling point, the drying rate is improved, the damage of high temperature to nutrition is reduced, a hot air circulation module is arranged, the fresh cold air which enters through the preheating of discharged wet and hot waste gas still containing heat is remarkably reduced, the fuel consumption of the hot air stove is reduced, the running cost is lowered, and the total heat efficiency of a system is improved. In view of this, the present invention provides a technical solution for improving and solving the above-mentioned problems, and for intensively researching and applying in cooperation with the academic theory, and finally providing a solution which has a reasonable design and can effectively improve the above-mentioned drawbacks. The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art. Disclosure of utility model The utility model provides a drying device, which solves the problems of the background, and is provided with a centrifugal fan, which can cause a negative pressure low-pressure environment, so that the evaporation of moisture in forage can be accelerated at a lower temperature in a boiling point reducing way, the drying rate is improved, the damage of high temperature to nutrition is reduced, and a hot air circulation module is provided, so that the exhausted wet and hot waste gas still containing heat can be used for preheating fresh cold air entering a hot air furnace, thereby obviously reducing the fuel consumption of the hot air furnace, reducing the operation cost and improving the total heat efficiency of the system. The technical scheme includes that the drying device comprises a drying box, a mesh belt conveyor, a material homogenizing frame, a material guiding base, an air outlet hopper, an air duct type electric heater, an air-air heat exchanger, an air inlet fan and a high-power centrifugal fan, wherein the mesh belt conveyor, the material homogenizing frame, the material guiding base and the air outlet hopper are all arranged in the drying box, the air outlet hopper, the air duct type electric heater, the air-air heat exchanger and the air inlet fan are sequentially communicated, the drying box is provided with a forage feeding hopper and a forage discharging hopper, the material homogenizing frame is rotatably connected with a material homogenizing screw rod, the material homogenizing frame is provided with a driving motor, a driving end of the driving motor is connected with the material homogenizing screw rod through a coupler, and the drying box, the high-power centrifugal fan and the air-air heat exchanger are sequentially communicated. On the basis of the technical scheme, the utility model can be improved as follows. Further, the outer wall of the material homogenizing screw rod is provided with two groups of screw blades, and the directions of the two groups of screw blades are opposite. Further, th