CN-118697072-B - Drying equipment for batch type coffee beans and nuts

CN118697072BCN 118697072 BCN118697072 BCN 118697072BCN-118697072-B

Abstract

A batch type coffee bean and nut drying device comprises a drying room, a heat pump heating device and an air inlet channel, wherein a first drying screen and a second drying screen are arranged in the drying room and are divided into a heat supply room, a first drying room and a second drying room, the heat pump heating device is arranged in the heat supply room, a discharge opening is formed in the side wall of the first drying room, a discharge door is arranged at the discharge opening, a plurality of axial flow fans are arranged in the heat supply room at intervals, an air inlet is formed in the side wall of the heat supply room, a part of space is reserved at the upper part of the first drying room and is used as an air inlet cavity, an air inlet is formed in the side wall of the air inlet cavity, and the air inlet is communicated with the air inlet through the air inlet channel. According to the invention, part of hot air in the heating chamber is introduced into the air inlet chamber through the air inlet duct to heat the coffee beans or nuts above the second drying chamber, so that the heating effect of the coffee beans or nuts above the second drying chamber is ensured, and the occurrence of damp and rot phenomena is prevented.

Inventors

LIU LI
LIN SHAN
PENG WENSHU
LI CHUNMEI
DONG HUI
LI GUANGHUI

Assignees

普洱金树咖啡产业有限公司
云南韵和机械科技有限公司
普洱茶研究院

Dates

Publication Date: 20260508
Application Date: 20240812

Claims (5)

1. A batch type coffee bean and nut drying device comprises a drying room and a heat pump heat supply device, wherein the top surface of the drying room is of an open structure, a first drying screen and a second drying screen are arranged in the drying room from bottom to top at intervals, the interior of the drying room is divided into a heat supply room, a first drying room and a second drying room in sequence, the heat pump heat supply device is arranged in the heat supply room, the side wall of the first drying room is provided with a discharge opening, a discharge door is arranged at the discharge opening, the drying device is characterized by further comprising an air inlet duct, a plurality of axial fans are arranged in the heat supply room at intervals, at least one air inlet is arranged on the side wall of the heat supply room, part of the upper part of the first drying room is reserved as an air inlet cavity, at least one air inlet is arranged on the side wall of the air inlet cavity, the air inlet port is communicated with the air inlet through the air inlet, the side wall of the lower part of the first drying room and the side wall of the heat supply room are provided with a rectangular opening, the upper part of the rectangular opening is formed at the middle part of the rectangular opening, the discharge opening is formed at the middle part, the discharge opening is formed at the position corresponding to the top surface of the air inlet duct, the air inlet duct is arranged at the two sides of the air inlet duct and the air inlet duct are hinged with the main body, the top of the main body is hinged with the air inlet duct is arranged at the top of the side of the main body respectively, the air inlet duct is hinged with the top of the air inlet duct, the air inlet is hinged with the air inlet duct and the air inlet is arranged at the top side of the top of the main body respectively, and the air duct outlet is in butt joint with the air inlet.
2. The batch coffee bean and nut drying device of claim 1, wherein two sides of the rectangular opening are respectively provided with a vertical guide groove, two sides of the discharging door are respectively correspondingly arranged in the vertical guide grooves, and the side wall of the rectangular opening is also correspondingly provided with a discharging door lifting driving mechanism.
3. The batch coffee bean and nut drying device of claim 2, wherein the discharging door lifting driving mechanism comprises a lifting driving motor, a rack and a gear, the rack is vertically fixed on the outer side wall of the discharging door, the lifting driving motor is fixedly arranged on the side wall of the rectangular opening, the output end of the lifting driving motor is connected with one gear, and the gear is meshed with the rack.
4. The apparatus of claim 1, wherein the first drying chamber further comprises a vent gas outlet on a side wall thereof, the vent gas outlet being in communication with the heating chamber via a recovery line.
5. A batch coffee bean, nut drying apparatus as claimed in claim 1, wherein: the second drying screen is provided with a blanking opening, and the blanking opening is rotatably connected with a blanking plate.

Description

Drying equipment for batch type coffee beans and nuts Technical Field The invention relates to the technical field of material drying, in particular to batch type coffee bean and nut drying equipment. Background The Chinese patent with the authorized bulletin number of CN 217483132U discloses a batch type coffee bean dryer which comprises a conveyor belt lifter, wherein the conveyor belt lifter is provided with a conveyor belt, the conveyor belt is divided into a feeding end and a discharging end, the feeding end is arranged below a feeding box, a coffee fresh fruit peeling machine is provided with a feeding hole and a discharging hole, the feeding hole of the coffee fresh fruit peeling machine is adaptively arranged below the discharging end of the conveyor belt, a horizontal coffee bean peeling platform is arranged below the discharging hole of the coffee fresh fruit peeling machine, a drying box is arranged on the side face of the coffee bean peeling platform, the top of the drying box is in an open type, a drying screen is horizontally arranged inside the drying box along the inner wall of the drying box, a discharging door is arranged on one side, far away from the contact of the coffee bean peeling platform, of the drying box, a hot air source inlet is arranged below the free side of the drying box, and the output end of the hot air fan is connected with the hot air source inlet. The stoving screen cloth that stoving incasement portion set up divide into first stoving screen cloth and second stoving screen cloth, first stoving screen cloth is in the top of second stoving screen cloth. The heat pump source heat supply equipment generates hot air which is blown into the drying box through the hot air blower, and the hot air sequentially passes through the second drying screen and the coffee beans on the second drying screen, the first drying screen and the coffee beans on the first drying screen, so that primary drying of the coffee beans on the first drying screen and secondary drying of the coffee beans on the second drying screen are completed. The hot air in the above patent enters between the coffee beans on the second drying screen from the second drying screen, because the gap between the coffee beans is very small, the wind speed is greatly weakened under the effect of the resistance of the coffee beans, the wind speed is very low when the hot air reaches the first drying screen, and the hot air is difficult to reenter the coffee beans on the first drying screen, so that the drying effect of the coffee beans on the first drying screen is very poor. Moreover, even if some hot air can still enter the coffee beans on the first screen, as the hot air is the tail gas of the coffee beans passing through the second screen, the interior of the hot air can be provided with a lot of moisture, and the moisture-containing air not only has a difficult effect of drying the coffee beans, but also can make the coffee beans damp and rot. Disclosure of Invention The invention provides a batch type coffee bean and nut drying device, which aims to solve the defects that the existing batch type coffee bean drying device is difficult to blow hot air into the coffee beans on a first drying screen under the action of the resistance of the coffee beans, so that the drying effect of the coffee beans above the first drying screen is poor, and the like. The technical scheme adopted by the invention is as follows: the utility model provides a drying equipment of batch coffee beans, nut, includes stoving room and heat pump heating device, the top surface in stoving room is open-type structure, is equipped with first stoving screen cloth and second stoving screen cloth from bottom to top interval in this stoving room, separates the stoving room inside into heat supply room, first stoving room and second stoving room in proper order, heat pump heating device install in the heating room, a discharge opening is seted up to the lateral wall of first stoving room, a discharge opening department installs a discharge gate, still includes the air inlet wind channel, a plurality of axial fan are installed to the interval in the heating room, at least one induced air mouth is seted up on the lateral wall of this heating room, partial space is left as the air inlet cavity in the upper portion of first stoving room, is equipped with an air intake on the lateral wall of this air inlet cavity at least, induced air mouth with be linked together through between the air inlet wind channel. In a preferred embodiment, the lower side wall of the first drying chamber and the upper side wall of the heating chamber are provided with a rectangular opening, the upper part of the rectangular opening forms the air inlet, the middle part forms the discharge opening, the lower part forms the air guiding opening, the discharge opening and the air guiding opening are separated by a partition board, and the top surface of the partition board is aligned with