阅读说明：本技术 一种环保节能式多热源果蔬烘干设备 (Environment-friendly energy-saving multi-heat-source fruit and vegetable drying equipment ) 是由 龚俊 邓矿安 汤永城 于 2021-06-22 设计创作，主要内容包括：本发明公开了一种环保节能式多热源果蔬烘干设备,包括控制器和烘干柜,烘干柜由上至下分别设有排风室和烘干室,排风室底面连接有主排风扇,排风室侧面连接有次排风扇,烘干柜背面设有出风导向结构,出风导向结构连接有出风管,出风管旁接有散热管,出风管连接有除湿器,除湿器连接有循环热风机,循环热风机与烘干室相连,烘干室连接有均热箱,均热箱与循环热风机的出风口相连,烘干室设有若干条轨,条轨之间连接有果蔬篮,果蔬篮设有透气孔,烘干室两侧壁连接有红外发生器和紫外发生器,红外发生器和紫外发生器在同一水平线为相对分布,红外发生器和紫外发生器在竖直面为交替分布,烘干室上方连接有出风端温度传感器和湿度传感器。(The invention discloses an environment-friendly energy-saving multi-heat-source fruit and vegetable drying device, which comprises a controller and a drying cabinet, wherein the drying cabinet is respectively provided with an exhaust chamber and a drying chamber from top to bottom, the bottom surface of the exhaust chamber is connected with a main exhaust fan, the side surface of the exhaust chamber is connected with a secondary exhaust fan, the back surface of the drying cabinet is provided with an air outlet guide structure, the air outlet guide structure is connected with an air outlet pipe, the side of the air outlet pipe is connected with a radiating pipe, the air outlet pipe is connected with a dehumidifier, the dehumidifier is connected with a circulating hot air blower, the circulating hot air blower is connected with the drying chamber, the drying chamber is connected with a heat equalizing box, the heat equalizing box is connected with an air outlet of the circulating hot air blower, the drying chamber is provided with a plurality of rails, fruit and vegetable baskets are connected between the rails, the fruit and vegetable baskets are provided with air holes, the two side walls of the drying chamber are connected with an infrared generator and an ultraviolet generator which are distributed relatively on the same horizontal line, and the infrared generator and the ultraviolet generator are distributed alternately on the vertical plane, an air outlet end temperature sensor and a humidity sensor are connected above the drying chamber.)

1. The utility model provides an environmental protection and energy saving formula many heats source fruit vegetables drying equipment, includes controller, stoving cabinet (1) and stoving cabinet (1) articulated cabinet door (2), its characterized in that: the drying cabinet (1) is provided with an exhaust chamber (101) and a drying chamber (102) from top to bottom respectively, the bottom surface of the exhaust chamber (101) is connected with a main exhaust fan (6), the side surface of the exhaust chamber (101) is connected with a secondary exhaust fan (5), the back surface of the drying cabinet (1) is provided with an air outlet guide structure (103), the air outlet guide structure (103) is connected with an air outlet pipe (104), a radiating pipe (105) is connected beside the air outlet pipe (104), the air outlet pipe (104) is connected with a dehumidifier (9), the dehumidifier (9) is connected with a circulating hot air blower (4), the circulating hot air blower (4) is connected with the drying chamber (102), the drying chamber (102) is connected with a soaking box (3), the soaking box (3) is connected with an air outlet of the circulating hot air blower (4), the soaking box (3) is provided with a plurality of uniformly distributed air outlets (31), the utility model discloses a drying chamber, including soaking case (3), drying chamber (102), drying chamber (11), even hot case (3) center department is connected with air inlet end temperature sensor (32), drying chamber (102) is equipped with a plurality of strip rails (107), be connected with fruit vegetables basket (8) between strip rail (107), fruit vegetables basket (8) are equipped with bleeder vent (81), drying chamber (102) both sides wall is connected with infrared generator (12) and ultraviolet generator (11), infrared generator (12) and ultraviolet generator (11) are relative distribution at same water flat line, infrared generator (12) and ultraviolet generator (11) are the alternate distribution in the vertical plane, drying chamber (102) top is connected with air-out end temperature sensor (13) and humidity transducer (14).

2. The environment-friendly energy-saving multi-heat-source fruit and vegetable drying equipment as claimed in claim 1, wherein: air outlet guide structure (103) are equipped with the wind gap, the wind gap is towards inferior exhaust fan (5), air outlet guide structure (103) are for falling the splayed.

3. The environment-friendly energy-saving multi-heat-source fruit and vegetable drying equipment as claimed in claim 2, wherein: and air valves (106) are connected to pipelines of the air outlet pipe (104) and the radiating pipe (105).

4. The environment-friendly energy-saving multi-heat-source fruit and vegetable drying equipment as claimed in claim 3, wherein: and an air inlet of the circulating air heater (4) is connected with a filter screen (41).

5. The environment-friendly energy-saving multi-heat-source fruit and vegetable drying equipment as claimed in claim 4, wherein: the heat equalizing box is characterized in that a limiting strip (33) is arranged in front of the heat equalizing box (3), and a limiting opening capable of being matched with the limiting strip (33) is formed in the drying cabinet (1).

6. The environment-friendly energy-saving multi-heat-source fruit and vegetable drying equipment as claimed in claim 5, wherein: fruit vegetables basket (8) are equipped with ear seat (82) that can match with strip rail (107), ear seat (82) are equipped with the chamfer.

7. The environment-friendly energy-saving multi-heat-source fruit and vegetable drying equipment as claimed in claim 6, wherein: and quartz covers are connected to the outer sides of the infrared generator (12) and the ultraviolet generator (11).

8. The environment-friendly energy-saving multi-heat-source fruit and vegetable drying equipment as claimed in claim 7, wherein: drying cabinet (1) below is connected with gyro wheel (23), gyro wheel (23) are for taking adjusting bolt gyro wheel.

9. The environment-friendly energy-saving multi-heat-source fruit and vegetable drying equipment as claimed in claim 8, wherein: and a signal lamp (7) is connected above the drying cabinet (1).

10. The environment-friendly energy-saving multi-heat-source fruit and vegetable drying equipment as claimed in claim 9, wherein: the cabinet door (2) is transparent, the cabinet door (2) is provided with a control panel (21), the control panel (21) is provided with a touch panel (211) and a control button (212), and the cabinet door (2) is provided with a handle (22).

Technical Field

The invention belongs to the technical field of agricultural product drying machinery, and particularly relates to environment-friendly energy-saving multi-heat-source fruit and vegetable drying equipment.

Background

Seasonal production and annual supply of vegetables and fruits are important characteristics of fruits and vegetables, which cause contradictions between market supply and demand, while fresh fruits and vegetables have the following characteristics: high water content (the water content of most fruits and vegetables is more than 90%), and the fruits and vegetables are vigorous in respiration and metabolism and easy to rot after delivery. The special quality causes great difficulty in industrial links of storage, transportation, circulation and the like of the fruits and the vegetables. According to investigation, the average loss rate of fruits after delivery is 15-20%, the average loss rate of vegetables after delivery is 25-30%, the loss amount of fruits and vegetables per year exceeds 1.6 hundred million tons, and in order to reduce the huge loss of fruits and vegetables after delivery, methods of precooling, fresh keeping and drying fruits and vegetables are widely adopted.

Therefore, the drying of the fruits and vegetables is an effective way for adjusting supply and demand, digesting seasonal surplus and reducing the postpartum decay loss, and is an effective supplementing mode for fresh fruits and vegetables.

The existing fruit and vegetable drying method generally adopts a hot air drying type, and the hot air drying technology is the most widely applied technology in the current fruit and vegetable drying process, and the popularization rate reaches 90%. The hot air drying of fruits and vegetables is essentially a heat and mass exchange process between hot air and fruits and vegetables, when the fruits and vegetables are contacted with the hot air, the hot air transfers heat energy to the surfaces of the fruits and vegetables and gradually permeates the fruits and vegetables into the fruits and vegetables, and after the moisture in the fruits and vegetables is heated, the moisture is diffused into the air through an air film on the surfaces of the fruits and vegetables in a liquid or gaseous form. In this process, the moisture diffusion can be specifically divided into a moisture out-diffusion stage and a moisture in-diffusion stage: the moisture out-diffusion stage is that in the early stage of drying, moisture on the surfaces of the fruits and the vegetables absorbs heat energy to begin to evaporate, and the moisture is evaporated from the surfaces of the fruits and the vegetables to the air to form moisture out-diffusion; the stage of water internal diffusion refers to that when the surface water of the fruits and vegetables is less than the internal water, the internal water is diffused and transferred to the surface to form the water internal diffusion due to the water pressure difference between the inside and the outside of the fruits and vegetables.

If the moisture diffusion rate is too high to exceed the internal diffusion rate, the crust will be formed on the surface of the fruit and vegetable, the drying rate will be reduced, and the internal air pressure of the fruit and vegetable will be increased, so that the fruit and vegetable will deform and crack, and the drying quality will be reduced.

Therefore, in order to balance the internal and external diffusion rates of water and make up the defects of hot air drying, the hot air drying is assisted by an infrared drying technology, the infrared drying technology is used for heating fruits and vegetables by using infrared rays (electromagnetic waves with the wavelength of 0.75-1000 microns) as a heat source, when the wavelength of the infrared rays is matched with the inherent vibration wavelength of molecular motion in the fruits and vegetables, strong resonance of molecules in the fruits and vegetables can be caused, intense friction is generated in the fruits and vegetables to generate heat, the internal temperature of the fruits and vegetables is raised, and water is evaporated to achieve the drying effect, and the drying mode of the multi-heat source effectively avoids the problem of drying quality of the fruits and vegetables caused by different internal and external diffusion rates of water.

Disclosure of Invention

In view of the problems raised by the above background art, the present invention is directed to: aims to provide an environment-friendly energy-saving multi-heat-source fruit and vegetable drying device.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:

an environment-friendly energy-saving multi-heat-source fruit and vegetable drying device comprises a controller, a drying cabinet and a cabinet door hinged with the drying cabinet, wherein the drying cabinet is respectively provided with an exhaust chamber and a drying chamber from top to bottom, the bottom surface of the exhaust chamber is connected with a main exhaust fan, the side surface of the exhaust chamber is connected with a secondary exhaust fan, the back surface of the drying cabinet is provided with an exhaust guide structure, the exhaust guide structure is connected with an exhaust pipe, a radiating pipe is connected beside the exhaust pipe, the exhaust pipe is connected with a dehumidifier, the dehumidifier is connected with a circulating hot air blower, the circulating hot air blower is connected with the drying chamber, the drying chamber is connected with a heat equalizing box, the heat equalizing box is connected with an air outlet of the circulating hot air blower, the heat equalizing box is provided with a plurality of uniformly distributed air outlet holes, the center of the heat equalizing box is connected with an air inlet end temperature sensor, the drying chamber is provided with a plurality of rails, and a fruit and vegetable basket is connected between the rails, the fruit vegetables basket is equipped with the bleeder vent, drying chamber both sides wall is connected with infrared generator and ultraviolet generator, infrared generator and ultraviolet generator are the relative distribution at same water flat line, infrared generator and ultraviolet generator are the alternative distribution in vertical face, the drying chamber top is connected with air-out end temperature sensor and humidity transducer.

Further inject, air-out guide structure is equipped with the wind gap, the wind gap is to inferior exhaust fan, air-out guide structure is for falling the splayed, such structural design for inferior exhaust fan can be with the moist hot-air that is transmitted by the stoving cabinet and comes directly blows in air-out guide structure through the wind gap, and air-out guide structure has carried out the direction of gathering together for the splayed to moist hot-air that falls for moist hot-air gets into out the tuber pipe more easily, improves hot-air flow velocity, and then improves circulation speed, accelerates fruit vegetables dry-process speed.

Further inject, all be connected with the pneumatic valve on the pipeline of air-out pipe and cooling tube, such structural design controls the break-make of air-out pipe and cooling tube through the pneumatic valve.

Further inject, the air intake connection of circulation air heater has the filter screen, and such structural design avoids in the pollutant entering stoving cabinet in the air through the filter screen, causes the pollution to the fruit vegetables in the stoving cabinet.

Further inject, soaking case the place ahead is equipped with spacing, the drying cabinet is equipped with the spacing mouth that can match with spacing, and such structural design fixes a position installation soaking case through the matching of spacing and spacing mouth.

Further inject, fruit vegetables basket is equipped with the ear seat that can match with a rail, the ear seat is equipped with the chamfer, and such structural design makes the ear seat get into a rail more easily through the chamfer, and a rail then provides bearing structure for fruit vegetables basket.

Further, the outer sides of the infrared generator and the ultraviolet generator are connected with quartz covers, and the infrared generator and the ultraviolet generator are protected by the quartz covers and cannot be weakened excessively by infrared rays and ultraviolet rays.

Further inject, drying cabinet below is connected with the gyro wheel, the gyro wheel is for taking adjusting bolt gyro wheel, and such structural design alleviates the degree of difficulty that removes drying cabinet through the gyro wheel, and the gyro wheel makes drying cabinet's height to adjust for taking adjusting bolt gyro wheel.

Further inject, drying cabinet top is connected with the signal lamp, and such structural design feeds back drying equipment's operating condition through the signal lamp to can appear when unusual at drying equipment, in time send out signal reminds the staff in time to handle.

Further inject, the cabinet door is the transparence, the cabinet door is equipped with control panel, control panel is equipped with touch panel and control button, the cabinet door is equipped with the handle, such structural design, provides the observation field of vision through the cabinet door of transparence, comes to adjust drying equipment's parameter through touch panel and control button.

The invention has the beneficial effects that:

1. the internal and external water diffusion rates of the fruits and the vegetables are effectively balanced, the coking phenomenon of the fruits and the vegetables is prevented, and the drying quality and the drying rate of the fruits and the vegetables are improved;

2. the hot air is recycled, so that the resource waste is reduced, and the air heating time and the drying period are shortened;

3. the fruit and vegetable can be disinfected while being cooled, the two procedures are carried out simultaneously, the drying period is shortened, and the drying efficiency is improved.

Drawings

The invention is further illustrated by the non-limiting examples given in the accompanying drawings;

FIG. 1 is a schematic structural diagram of an embodiment of an environment-friendly energy-saving multi-heat-source fruit and vegetable drying apparatus of the present invention;

FIG. 2 is a schematic structural view of an embodiment of an environment-friendly and energy-saving multi-heat-source fruit and vegetable drying apparatus of the present invention with a cabinet door removed;

FIG. 3 is a schematic back structure diagram of an embodiment of the environment-friendly and energy-saving multi-heat-source fruit and vegetable drying apparatus of the present invention;

FIG. 4 is a schematic structural diagram of a fruit and vegetable basket in an embodiment of an environment-friendly and energy-saving multi-heat source fruit and vegetable drying apparatus of the present invention;

FIG. 5 is a schematic structural diagram of a soaking box in an embodiment of an environment-friendly energy-saving multi-heat-source fruit and vegetable drying apparatus of the present invention;

FIG. 6 is an enlarged view of the position A in the embodiment of the environment-friendly and energy-saving multi-heat-source fruit and vegetable drying apparatus of the present invention;

the main element symbols are as follows:

drying cabinet 1, exhaust chamber 101, drying chamber 102, air outlet guide structure 103, air outlet pipe 104, heat radiating pipe 105, air valve 106, strip rail 107;

a cabinet door 2, a control panel 21, a touch panel 211, a control button 212, a handle 22, and a scroll wheel 23;

the heat equalizing box 3, the air outlet hole 31, the air inlet end temperature sensor 32 and the limiting strip 3;

a circulating air heater 4 and a filter screen 41;

a secondary exhaust fan 5;

a main exhaust fan 6;

a signal lamp 7;

a fruit and vegetable basket 8, air holes 81 and ear seats 82;

a dehumidifier 9;

an ultraviolet generator 11, an infrared generator 12;

an air outlet end temperature sensor 13;

a humidity sensor 14.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.

As shown in figures 1-6, the environment-friendly energy-saving multi-heat-source fruit and vegetable drying equipment of the invention comprises a controller, a drying cabinet 1 and a cabinet door 2 hinged with the drying cabinet 1, wherein the drying cabinet 1 is respectively provided with an exhaust chamber 101 and a drying chamber 102 from top to bottom, the bottom surface of the exhaust chamber 101 is connected with a main exhaust fan 6, the side surface of the exhaust chamber 101 is connected with a secondary exhaust fan 5, the back surface of the drying cabinet 1 is provided with an exhaust air guide structure 103, the exhaust air guide structure 103 is connected with an exhaust pipe 104, a radiating pipe 105 is connected beside the exhaust pipe 104, the exhaust pipe 104 is connected with a dehumidifier 9, the dehumidifier 9 is connected with a circulating hot air blower 4, the circulating hot air blower 4 is connected with the drying chamber 102, the drying chamber 102 is connected with a uniform heating box 3, the uniform heating box 3 is connected with an air outlet of the circulating hot air blower 4, the uniform heating box 3 is provided with a plurality of uniformly distributed air outlet holes 31, the center of the uniform heating box 3 is connected with an air inlet end temperature sensor 32, drying chamber 102 is equipped with a plurality of rails 107, is connected with fruit vegetables basket 8 between the rail 107, and fruit vegetables basket 8 is equipped with bleeder vent 81, and drying chamber 102 both sides wall is connected with infrared generator 12 and ultraviolet generator 11, and infrared generator 12 and ultraviolet generator 11 are relative distribution at same water flat line, and infrared generator 12 and ultraviolet generator 11 are distribution in turn at the vertical face, and drying chamber 102 top is connected with air-out end temperature sensor 13 and humidity transducer 14.

In the implementation of the scheme, the fruits and vegetables are placed in the fruit and vegetable basket 8 after being processed, then the fruit and vegetable basket 8 containing the fruits and vegetables is placed in the drying chamber 102, the cabinet door 2 is closed, the circulating air heater 4 is started, and the circulating air heater 4 heats air at a preheating temperature, so that the situation that the shells of the fruits and vegetables are rapidly hardened due to direct high temperature and the water in the shells cannot be lost is avoided;

when the preheating stage is carried out, the air flow is heated by the circulating air heater 4, enters the soaking box 3 and is distributed out through the air outlet holes 31 on the soaking box 3, the air outlet holes 31 are uniformly distributed on the soaking box 3, so that the air flow can be uniformly distributed, the phenomenon that the air flow is concentrated at a certain position and upwards dissipated to cause that some fruits and vegetables in the fruit and vegetable basket 8 above are excessively dried or the fruits and vegetables are not dried uniformly and have different quality is avoided, after the dry hot air is uniformly dissipated through the soaking box 3, the fruits and vegetables in the fruit and vegetable basket 8 are preheated from bottom to top, during preheating, the moisture outside the fruits and vegetables is gradually gasified and outwards lost, the hot air is sucked into the exhaust chamber 101 by the main exhaust fan 6, the hot air is blown into the air outlet guide structure 103 again by the secondary exhaust fan 5, the hot air is sent into the dehumidifier 9 by the air outlet pipe 104, after dehumidification is completed, the hot air is sent into the circulating air heater 4 for secondary utilization, reducing energy consumption, accelerating air temperature rising speed, and starting a high-temperature drying stage after preheating is finished;

when the high-temperature drying stage is carried out, the circulating air heater 4 heats the air at a higher temperature, the infrared generator 12 is also started at the moment, the infrared light and molecules inside the fruits and vegetables generate resonance, so that the moisture inside the fruits and vegetables is rapidly heated and gasified and is dissipated outwards, because the high-temperature hot air evaporates the moisture outside the fruits and vegetables at the moment, the infrared light evaporates the moisture inside the fruits and vegetables, the moisture diffusion inside and outside the fruits and vegetables is balanced, the hardening of the peel is prevented, meanwhile, the high-temperature hot air and the infrared light rapidly heat the fruits and vegetables, the starting time of the moisture evaporation of the fruits and vegetables is reduced, the infrared generator 12 and the ultraviolet generator 11 are alternately distributed in the vertical direction, the phenomenon that the infrared generator 12 is excessively concentrated, the temperature inside the fruits and vegetables is heated too fast to form a coking phenomenon is avoided, and the ultraviolet generator 11 can be installed between the infrared generators 12, the infrared heating distribution area and the ultraviolet disinfection distribution area are more reasonable and efficient, and after the high-temperature drying stage is finished, the cooling and water loss stage is carried out;

when the cooling and water loss stage is carried out, the power of the circulating air heater 4 is reduced, so that the temperature of hot air is reduced, the power of the infrared generator 12 is reduced, the intensity of infrared light is reduced, the problem that the internal tissues of fruits and vegetables are coked due to continuous high temperature is avoided, the fruits and vegetables are lost at a constant water loss speed at the temperature, and after the cooling and water loss stage is finished, the cooling and disinfection stage is carried out;

when the cooling and sterilizing stage is carried out, the ultraviolet generator 11 is started to sterilize and disinfect the fruits and vegetables in the fruit and vegetable basket 8, at the moment, the heating function of the circulating hot air blower 4 is closed, air is sent into the drying chamber 102 by the circulating hot air blower 4 and overflows from the radiating pipe 105, the air does not participate in the thermal cycle any more, the air with lower temperature outside is continuously added into the drying chamber 102 and takes away hot air in the drying chamber 102, the fruits and the drying chamber 102 are rapidly cooled, so that the fruits and the vegetables can be generally cooled and generally sterilized, and the drying period of the fruits and the vegetables is shortened;

in the whole drying period, the air temperature in the drying chamber 102 is monitored by the air inlet end temperature sensor 32 and the air outlet end temperature sensor 13, and the air temperature is fed back to the controller so as to adjust the power of the circulating air heater 4 and the infrared generator 12, and the humidity of the air in the drying chamber 102 is monitored by the humidity sensor 14 so as to be fed back to the controller so as to adjust the power of the dehumidifier 9.

Preferably, air-out guide structure 103 is equipped with the wind gap, the wind gap is towards inferior exhaust fan 5, air-out guide structure 103 is the splayed that falls, such structural design, make inferior exhaust fan 5 can be with the moist hot-air that is transmitted by drying cabinet 1 directly blow in air-out guide structure 103 through the wind gap, air-out guide structure 103 has carried out the direction of gathering together for the splayed that falls to moist hot-air, make moist hot-air more easily get into out tuber pipe 104, improve hot-air flow speed, and then improve circulation speed, accelerate fruit vegetables dry-process speed. In fact, other structural shapes of the air outlet guide structure 103 may be specifically considered according to specific situations.

Preferably, the air valves 106 are connected to the pipelines of the air outlet pipe 104 and the heat dissipation pipe 105, and the air valves 106 are designed to control the on/off of the air outlet pipe 104 and the heat dissipation pipe 105. In fact, other configurations for controlling the opening and closing of the outlet pipe 104 and the heat dissipating pipe 105 can be considered according to specific situations.

Preferably, the air inlet of the circulating air heater 4 is connected with a filter screen 41, and due to the structural design, pollutants in the air are prevented from entering the drying cabinet 1 through the filter screen 41 to pollute the fruits and vegetables in the drying cabinet 1. In fact, other structural shapes that avoid the introduction of contaminants in the air into the drying cabinet 1 may be specifically considered according to the specific situation.

Preferably, soaking case 3 the place ahead is equipped with spacing 33, and drying cabinet 1 is equipped with the spacing mouth that can match with spacing 33, and such structural design fixes a position installation soaking case 3 through the matching of spacing 33 and spacing mouth. In fact, other limit mounting structures of the soaking tank 3 can be specifically considered according to specific conditions.

Preferably, the fruit and vegetable basket 8 is provided with an ear seat 82 which can be matched with the strip rail 107, the ear seat 82 is provided with a chamfer, the structural design is that the ear seat 82 can enter the strip rail 107 more easily through the chamfer, and the strip rail 107 provides a supporting structure for the fruit and vegetable basket 8. In fact, other matching structures of the fruit and vegetable basket 8 and the strip rail 107 can be specifically considered according to specific conditions.

Preferably, the infrared generator 12 and the ultraviolet generator 11 are connected to the outside by quartz covers, and the structure is designed such that the infrared and ultraviolet rays are not excessively attenuated while the infrared generator 12 and the ultraviolet generator 11 are protected by the quartz covers. In fact, other protective structures of the infrared generator 12 and the ultraviolet generator 11 may also be specifically considered according to the specific situation.

Preferably, drying cabinet 1 below is connected with gyro wheel 23, and gyro wheel 23 is for taking adjusting bolt gyro wheel, and such structural design alleviates the degree of difficulty that removes drying cabinet 1 through gyro wheel 23, and gyro wheel 23 makes drying cabinet 1's height to adjust for taking adjusting bolt gyro wheel. In fact, other moving structures of the drying cabinet 1 can be specifically considered according to specific situations.

Preferably, 1 top of drying cabinet is connected with signal lamp 7, and such structural design feeds back drying equipment's operating condition through signal lamp 7 to can appear when unusual at drying equipment, in time signals, remind the staff in time to handle. In fact, other structural designs for feeding back the operating state of the drying device may be specifically considered according to specific situations.

Preferably, the cabinet door 2 is transparent, the cabinet door 2 is provided with the control panel 21, the control panel 21 is provided with the touch panel 211 and the control button 212, the cabinet door 2 is provided with the handle 22, and with the structural design, the transparent cabinet door 2 provides an observation visual field, and parameters of the drying device are adjusted through the touch panel 211 and the control button 212. In fact, other structural designs for the drying device parameter adjustment may also be specifically considered according to the specific situation.

The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.