[0034] Example
[0035] like figure 1 As shown in -4, the present invention is mainly composed of a control system, a temperature compensation device, a baking air duct 1, an air inlet duct 2, a dehumidifier 3, an exhaust fan 4, a heating device 5, a vibrating drying rack 6, and an air guide Board 7 composition. Among them, the vibrating drying rack 6 such as figure 2 As shown, it consists of a bracket 64 , a motor 61 , a stirring shaft 62 , a roller 63 , a roller mounting frame 65 , and an oil cloth 66 . At the same time, the temperature compensation device such as figure 1 As shown, it consists of a thermostat 81 and a heater 82 .
[0036] During implementation, the baking air duct 1 is made of cement and bricks, and its inner bottom surface is provided with moving tracks that match the rollers 63 at the bottom ends of the bracket 64 of the vibrating drying rack 6 . The rollers 63 of the present invention preferably use SG20 guide rollers. The present invention provides four SG20 guide rollers, and the four SG20 guide rollers are respectively installed on both ends of the bottom of the bracket 64 through shafts. The motor 61 is fixed to one end of the bracket 64 by bolts. The stirring shaft 62 is installed inside the bracket 64 and is provided with a connecting sleeve at one end and a smooth shaft head at the other end. The head end of the shaft is mounted in a bearing at the other end of the bracket 64 . At the same time on the top of the bracket 64, and above the stirring shaft 62, such as image 3 As shown, an oil cloth 66 is laid in parallel, and the two long sides of the oil cloth 66 are provided with many holes in parallel. on the long side. When the motor 61 and the bearing of the present invention are installed on the bracket 64, the motor 61 and the bearing are installed on the stirring shaft 62 so that the raised end of the stirring shaft 62 can fully contact the bottom surface of the oil cloth 66 as a fixed point. The aforementioned motor 61 is electrically connected to the control system.
[0037] The control system of the present invention is as Figure 4 As shown, it is composed of a power output module, a capacitor starting filter circuit, a motor uniform speed control circuit, a three-terminal adjustable integrated voltage stabilizer circuit, a switch, and a power supply. In order to better implement the present invention, the power output module is preferably implemented by a TOP233Y power output module with multiple outputs. The VCC+ pin of the TOP233Y power output module is connected to the output end of the switch, and VCC The - pin is connected to the neutral line of the power supply, and the OUT2+ pin is connected to the input end of the thermostat 81 . The power supply is 220V AC voltage, and the 220V AC voltage supplies power for the power output module; the input end of the opener is connected to the live wire of the power supply, and the output end of the thermostat 81 and the three-terminal adjustable integrated voltage regulator The circuit is connected; the OUT2-pin of the TOP233Y power output module is connected with the three-terminal adjustable integrated voltage regulator circuit.
[0038] During implementation, the temperature controller 81 for detecting the baking air duct 1 is arranged on the inner side of the lower end of the air inlet of the baking air duct 1, and the present invention preferably adopts the KSD9700 digital temperature controller with high sensitivity. The temperature sensing head 801 of the temperature controller 81 is arranged on the air inlet end of the inner wall of the baking air duct 1. The temperature sensing head 801 is used to detect the baking temperature in the baking air duct 1. The thermostat The temperature control range of 81 is 30°C to 110°C, and in the present invention, it is preferentially set to 48°C, the temperature value required for drying Chinese prickly ash. The heater 82 used for temperature compensation of the baking air duct 1 is arranged at the air outlet of the exhaust fan 4 at the air inlet of the baking air duct 1. The heater 82 preferably adopts parallel distributed heating plates in the present invention. The heater 82 composed of the heater 82 is used to reheat the hot air flowing out of the air inlet duct 2, so that the hot air flowing out of the air inlet duct 2 can reach the temperature required for drying peppercorns, thereby effectively to improve the drying efficiency of Chinese prickly ash.
[0039] When the present invention is implemented, firstly, when the opener of the control system is turned on, at this time, the power output module provides working voltages for the temperature controller 81 and the motor 61 respectively. The voltage output by the power output module is transmitted to the motor 61 through the motor uniform speed control circuit. The constant current source circuit, the non-inverting amplifier circuit and the voltage adjustment circuit are combined with the motor uniform speed control circuit. The motor uniform speed control circuit increases when the load of the motor 61 increases. When the current of the motor 61 increases, the output voltage of the non-inverting amplifying circuit in the uniform speed control circuit of the motor will increase accordingly; at the same time, the present invention also adopts the combination of the motor uniform speed control circuit and the capacitor starting filter circuit, and the combination of the two circuits After that, the driving capacity of the motor is greatly improved by more than 25%, and the capacitor start filter circuit can effectively reduce the fluctuation of the driving voltage output by the uniform speed control circuit of the motor, even if the motor 61 can start at a uniform speed, so that the stirring shaft drives the oil cloth smoothly. Vibrate to evenly turn the peppercorns on the oilcloth, thus ensuring that the peppercorns can be dried evenly. When the thermostat 81 is in the enabling state, its internal switch control terminal is in the closed state, that is, the thermostat 81 and the power output module output the voltage to the three-terminal adjustable integrated voltage stabilizing circuit, which regulates the input voltage. After adjustment, the heater 82 is provided with a working voltage, and the voltage adjusted by this circuit can effectively prevent the voltage fluctuations from affecting the stability of the heater's heating temperature or damaging the heater. After the heater 82 is powered on, it starts to heat, and the temperature sensing head 801 of the thermostat 81 monitors the drying temperature in the baking duct 1. After the heater 82 is heated, the temperature of the hot air flowing out of the air inlet duct 2 is monitored. It can effectively reach the temperature required for pepper drying. At the same time, the motor 61 starts to rotate at a constant speed under the control of the constant speed control circuit of the motor, and drives the stirring shaft 62 to rotate. When the stirring shaft 62 rotates, its raised end is in full contact with the bottom surface of the oil cloth 66, so that the oil cloth 66 is in the When the stirring shaft 62 rotates, it is in a shaking state, so that the prickly ash placed on the tarpaulin 66 is constantly turned, so that the prickly ash can be heated evenly during drying, effectively improving the drying efficiency and drying quality of the prickly ash in the present invention.
[0040] At the same time, when the temperature sensing head 801 of the thermostat 81 detects that the drying temperature in the baking air duct 1 is higher than the drying temperature of peppercorns by 48°C, the switch control terminal in the thermostat 81 is disconnected, and the heater 81 Stop heating, that is, the heater 81 stops temperature compensation for the hot air flowing out of the air inlet duct 2, until the drying temperature in the baking duct 1 drops below 48°C, the switch control terminal in the thermostat 81 The heater 81 will be reheated until it is closed, that is, the heater 81 will start to perform temperature compensation for the hot air flowing out of the air inlet duct 2, thereby effectively ensuring the temperature stability of the present invention when drying Chinese prickly ash.
[0041] In order to better implement the present invention, the air inlet duct 2 is provided with an air inlet and an air outlet, and both the air inlet and the air outlet communicate with the baking air duct 1 . In order to ensure that the high-temperature air in the air inlet duct 2 can be transported to the interior of the baking air duct 1 for roasting peppercorns, an exhaust fan 4 is provided at the air outlet of the air inlet duct 2 . At the same time, in order to ensure that dry high-temperature air can be generated in the air inlet duct 2, the present invention sets a dehumidifier 3 at the connection between the air outlet of the baking air duct 1 and the air inlet of the air inlet air duct 2. Two dehumidifiers 3 are arranged in parallel along the direction of the central axis of the air inlet duct 2 to ensure that an "S"-shaped air flow channel is formed at the air inlet of the air inlet duct 2 . In order to dehumidify and heat the fresh air sucked by the air inlet duct 2 to form dry high-temperature air, the present invention innovatively uses a heat pump as the heating device 5 to replace the traditional electric heating method.
[0042] In order to ensure the heating effect of the dry cold air, the heat pump of the present invention needs to make some structural changes, such as figure 1 As shown, the conventional heat pump unit 51 and its condensing pipe 52 are separated, so that the unit 51 is partially located outside the air inlet duct 2 , and its condensing pipe 52 is located inside the air inlet duct 2 . After this arrangement, the refrigerant inside the unit 51 absorbs heat energy from the outside air to form a high-temperature gas, which is compressed by the compressor to form a high-temperature and high-pressure gas, and the high-temperature and high-pressure gas is delivered to the inside of the condenser pipe 52 located inside the air inlet duct 2 . The cold air entering from the air inlet is dehumidified by the dehumidifier 3 and then fully contacted with the condensing pipe 52, so that the high temperature released by the condensing pipe can fully heat the dry cold air, so that the interior of the air inlet duct 2 can be fully heated. The high-temperature dry air can enter the baking air duct 1 from the air outlet to bake the peppercorns.
[0043]In order to ensure the heating effect of the condensation pipe 52 on the dry cold air, the condensation pipe 52 needs to be arranged in a wave shape or a spiral shape inside the air inlet duct 2 . According to the situation, the condenser pipes 52 need to be evenly distributed inside the air inlet duct 2 , that is, the wavy or spiral plane of the condenser pipes 52 needs to be perpendicular to the central axis of the air inlet duct 2 . The number of layers arranged in the air inlet duct 2 of the condensation pipes 52 can be determined according to the actual situation, and it is preferable to make three or more rows. At the same time, in the present invention, in order to ensure the circulation of the air in the air inlet duct 2 , an exhaust fan 4 for accelerating the air circulation is also arranged in the air inlet duct 2 .
