CN107664397A - A far-infrared multifunctional drying room - Google Patents

Abstract

The present invention relates to a kind of multifunctional far infrared drying room, it is made up of drying room main body, mobile article truck, Heated by Far-Infrared Radiation system, fresh air samming dehumidification system and intelligent control system, described mobile article truck and Heated by Far-Infrared Radiation system are located in drying room main body, described fresh air samming dehumidification system is located at drying room body interior and is used for hydrofuge and interior circulation, described intelligent control system is located on drying room body outer wall, and is required by regulating and controlling the operation of Heated by Far-Infrared Radiation system and fresh air samming dehumidification system with reaching drying for different material.Dry materials efficiency and drying quality can be improved using this drying room；Drying efficiency is improved, and has saved cost；Save manpower；The energy is saved, it is pollution-free.

Description

A far-infrared multifunctional drying room

technical field

The invention belongs to the technical field of material drying, and relates to a material drying room, in particular to a far-infrared multifunctional drying room.

Background technique

The drying methods of commercial crops in our country are relatively traditional, mostly using traditional drying or hot air drying. When using hot air drying, air is usually used as the heating medium. Traditional drying rooms mainly use coal as the heat source. However, coal-fired drying consumes high energy consumption and causes relatively large environmental pollution. Coal-fired small boilers. In 2017, many provinces issued air pollution prevention and control action plans and set up coal ban areas. Therefore, coal mines need to be replaced by other heat sources. The air source heat pump drying room adopts the working principle of vapor compression refrigeration cycle. Using ambient air as the heat source to produce hot air has the advantages of energy saving and low pollution. However, the air circulation in the traditional air source heat pump drying room is usually a through-flow type, and the air flow The material layer is circulated, but due to the shielding of the material tray and the material, the air circulation is not smooth, which leads to serious temperature unevenness. Usually, the temperature difference between different areas in the same drying room can reach 30-40 ° C, often resulting in excessive drying of the material in the high temperature area. In the low temperature area, the material is still relatively humid, which seriously affects the drying efficiency and drying quality. Therefore, there is an urgent need for a drying room with uniform and controllable temperature, smooth internal air duct circulation, energy saving and environmental protection.

Chinese patent application number 201521049052.4 discloses an environmentally friendly and energy-saving intelligent hot air circulation drying room, which uses biomass energy as the heat source of the drying equipment, circulates hot water through a circulating water pump for heat transfer, and uses an axial flow fan to supply air horizontally and through a frequency converter and a microcomputer controller. Control the axial flow fan, detect the temperature and humidity in the drying room through the temperature sensor and humidity sensor, and control the heating of the biomass hot water boiler and the dehumidification of the centrifugal fan through the microcomputer controller. The environmental protection and energy saving intelligent hot air circulation drying room can accurately control the temperature, humidity and flame size of the drying device, and realize the automation of material drying, which can not only improve production efficiency, reduce production costs, improve product quality, but also save energy and protect the environment. However, the environment-friendly and energy-saving intelligent hot air circulation drying room still has the following problems. The use of hot air circulation to dry materials, although it indicates the use of horizontal air supply, does not explain the implementation method, and hot air drying will still cause a higher temperature on the side close to the heat source, and one side away from the heat source The side temperature is lower, the wind speed is higher on the side close to the tuyere, and the wind speed is lower on the side away from the tuyere, resulting in a large and uneven temperature difference inside the drying room, which seriously affects the drying efficiency and drying quality.

Chinese patent application number 201610236145.0 discloses a functional food far-infrared box-type drying system. The system uses a planar infrared radiation heating layer as a heat source to uniformly heat materials in the form of infrared radiation. Internal circulation and moisture removal. The functional food far-infrared box-type drying system adopts far-infrared surface heating to make the material evenly heated, which greatly retains the nutritional content of the material. At the same time, multiple Air holes for even air circulation. However, this system is small in scale and high in cost. It is only suitable for some economic crops with high economic value, and the small scale makes it difficult to meet large-scale drying needs.

According to the above-mentioned problems, the present invention designs a far-infrared multifunctional drying room, which adopts a far-infrared heating sheet emitting far-infrared rays on both sides, and the heating temperature is uniform and controllable. Humidity, to ensure the drying efficiency and drying quality of materials, while re-improving the air duct to ensure that the air can still circulate evenly under the structure of the large drying room, so that the air in the drying room can be effectively circulated, and the temperature in the room is evenly improved while improving the exhaust. wet efficiency. The use of movable material carts increases the convenience of use. At the same time, the control system is added to automatically control the operation of the drying room.

Contents of the invention

The main purpose of the present invention is to provide a far-infrared drying room for the above existing problems and limitations, which can not only evenly dry the temperature of each area in the drying room, but also make the air in the drying room circulate evenly to achieve effective dehumidification and ensure Material drying efficiency and drying quality, convenient to use and automatic control.

In order to achieve the above purpose, a far-infrared multifunctional drying room is provided, which is composed of a main body of the drying room, a movable material vehicle, a far-infrared radiation heating system, a fresh air uniform temperature and humidity removal system, and an intelligent control system. The material vehicle and the far-infrared radiation heating system are located in the main body of the drying room. The fresh air uniform temperature and humidity removal system is located inside the main body of the drying room for dehumidification and internal circulation. The intelligent control system is located on the outer wall of the main body of the drying room. And by adjusting the operation of the far-infrared radiation heating system and the fresh air uniform temperature and humidity removal system to meet the drying requirements of different materials.

The above-mentioned far-infrared multifunctional drying room, wherein: the main body of the drying room is composed of a housing shell, an insulation layer, a sealing layer and a door, and the housing shell is divided into upper and lower layers, and the center of the upper roof is hollow , the lower layer is the inner cavity of the drying room for drying materials, the upper layer is used for installing the fresh air dehumidification system, the insulation layer is fixed inside the shell of the house body, the sealing layer is fixed inside the insulation layer, and the door includes a Front door and two side doors.

The above-mentioned far-infrared multifunctional drying room, wherein: the heat preservation layer adopts one or more of color steel plate, heat preservation board and cement.

The above-mentioned far-infrared multifunctional oven, wherein: the sealing layer is made of stainless steel plate.

The above-mentioned far-infrared multifunctional drying room, wherein: the movable material vehicle is composed of a material vehicle frame, a tray support groove, a material tray, universal wheels and material vehicle guide rails, and the material vehicle frame is provided with multiple layers , the distance between each layer is 10cm-30cm, and a reasonable distance can be set according to the needs of use. If the distance is too narrow, it is not conducive to the circulation and dehumidification of the wind. If the distance is too wide, the effect of far-infrared radiation will be weakened, so the distance between each layer is 10cm- 30cm is the best. The pallet support groove is fixed on each layer of the material truck frame to support the material pallet, and the material pallet can be dragged and placed on the pallet support groove of each layer, and the universal wheel is fixed on the material truck At the bottom of the frame, the guide rail of the material cart is fixed on the ground inside the main body of the drying room to guide the moving direction of the movable material cart.

The above-mentioned far-infrared multi-functional drying room, wherein: the far-infrared radiation heating system is composed of multiple groups of infrared radiation units, and the infrared radiation unit is composed of a support frame, a heating sheet bracket and a far-infrared heating sheet. The supporting frame is composed of steel pipes, one end of the heating sheet bracket is suspended and the other end is fixed on the supporting frame, the heating sheet bracket is provided with multiple layers, and the number of layers is one layer more than that of the movable material vehicle. The far-infrared heating sheet is fixed on the heating sheet support, and the far-infrared heating sheet is a heating sheet emitting far-infrared rays on both sides.

The above-mentioned far-infrared multifunctional drying room, wherein: the fresh air uniform temperature and humidity removal system is composed of fans, valves, air ducts, air inlets and air outlets, and the air inlets and air outlets are connected to the air ducts. , the valve is located on the air inlet and the air outlet and on the air duct between the air inlet and the air outlet.

The above-mentioned far-infrared multifunctional drying room, wherein: the fan is an axial flow fan, and one or more axial flow fans are set according to the size of the drying room.

The above-mentioned far-infrared multifunctional drying room, wherein: one or more air ducts are set according to the number of fans. The circulation of the air in the traditional drying room is usually a through-flow type, and the air flow passes through the material layer for circulation. Although there is no heating device between the material trays of each layer, the material trays and materials will still block the airflow to a certain extent, so that the air can circulate. Unsmooth leads to uneven temperature problem. In addition, some layered traditional drying rooms also use advection air ducts. In order to achieve uniform distribution of wind, the method of adding perforated plates on the side is usually used. Although this method can make the wind evenly distributed on each layer to a certain extent, However, because the perforated plates block the circulation of the wind, the wind force is weak, which cannot achieve good circulation and dehumidification effects, and the increase of the perforated plates increases the cost. A far-infrared multifunctional drying room of the present invention solves the problem of uneven temperature due to the use of far-infrared heating sheets that emit far-infrared rays on both sides of each layer, but the far-infrared heating sheets have a certain shielding effect on the flow of wind , in order not to affect the dehumidification effect, the traditional through-flow air duct is changed to a parallel flow air duct, and the porous plate structure in the traditional drying room is cancelled, and the air duct inside the drying room is composed of far-infrared heating sheets. Guide the circulation of the wind, so that the wind flows in the drying room parallel to the direction of the material layer, and takes away the moisture in the drying room in time. This structure can not only ensure the uniform circulation of the wind in each layer, but also ensure the size of the wind force, effectively circulate and Dehumidification.

The above-mentioned far-infrared multifunctional drying room, wherein: the intelligent control system is composed of a temperature control system and a humidity control system, the intelligent control system is located in an electrical control cabinet, and the electrical control cabinet is fixed On the outer wall of the main body of the drying room, the temperature control system sets, monitors and regulates the temperature on the surface of the far-infrared heating sheet and the ambient temperature in the drying room, and the described humidity control system controls the moisture removal conditions in the drying room. Set and monitor and regulate the humidity in the drying room.

The above-mentioned far-infrared multifunctional drying room, wherein: the temperature control system includes a PLC, a thyristor voltage regulating module, a temperature sensor, a wet and dry bulb and a frequency converter, and the temperature sensor is fixed on the far-infrared heating sheet surface, and upload the temperature data on the surface of the monitored far-infrared heating sheet to the PLC. The data is uploaded to the PLC, the frequency converter accepts the instruction from the PLC to adjust the wind speed of the fan, and the thyristor voltage regulating module regulates the temperature of the far-infrared heating element through voltage regulation. When in use, the operating temperature and operating temperature threshold of the far-infrared heating element are set through the PLC, and the PLC automatically matches the corresponding voltage and sends it to the thyristor voltage regulating module for voltage regulation. When it is higher than the upper limit of the set temperature threshold of the far-infrared heating element, the PLC commands the thyristor voltage regulator module to reduce the voltage of the far-infrared heating element. When the temperature detected by the temperature sensor is lower than the lower limit of the set temperature threshold of the far-infrared heating element, the PLC Command the thyristor voltage regulating module to increase the voltage of the far-infrared heating element, and at the same time set the ambient temperature and temperature threshold in the drying room through the PLC, and set the fan speed at this temperature. When the dry bulb monitors the environment When the temperature is higher than the upper limit of the temperature threshold, the PLC commands the frequency converter to control the fan to increase the wind speed. When the dry bulb detects that the ambient temperature is lower than the lower limit of the temperature threshold, the PLC commands the frequency converter to control the fan to reduce the wind speed.

The above-mentioned far-infrared multifunctional drying room, wherein: the humidity control system includes a PLC, a wet and dry bulb and a dehumidification indicator light, and the wet and dry bulb monitors the humidity in the drying room in real time, and uploads the monitoring data In the PLC, the PLC controls the humidity in the drying room by controlling the opening and closing of the valve and the fan. The humidity control system has a dehumidification mode and an internal circulation mode. The dehumidification mode is that the fan is turned on and the wind is The valves on the air duct are closed, the valves on the air inlet and air outlet are opened, the internal circulation mode is that the fan is on, the valves on the air duct are opened, the valves on the air inlet and air outlet are closed, and the dehumidification indicator light is on when entering the dehumidification mode. When in use, the moisture discharge humidity and the humidity discharge humidity threshold of the dry wet ball are set by PLC. When the humidity in the drying room monitored by the dry wet ball exceeds the upper limit of the set humidity discharge humidity threshold, the PLC commands the fan to turn on, and the air on the air duct The valve is closed, the valves on the air inlet and air outlet are opened, and it enters the dehumidification mode. When the humidity in the drying room detected by the psychrometer is lower than the lower limit of the set dehumidification humidity, the PLC commands the fan to be turned on, and the valve on the air duct is opened. The valves on the air inlet and outlet are closed to enter the internal circulation mode.

The above-mentioned far-infrared multi-functional drying room, wherein: the intelligent control system has a manual control mode and an automatic control mode, and the manual control mode controls each stage in the drying process by manually operating the PLC touch screen , the automatic control mode is to set the initial value of each stage during the use of the drying room and automatically adjust the operation according to the temperature and humidity data during operation, and the initial value of each stage during the use of the drying room includes far-infrared The operating temperature, operating temperature threshold and running time of the heating sheet, the humidity of the dry and wet bulb and the threshold of the humidity, the wind speed of the fan, the ambient temperature in the drying room and its temperature threshold.

The far-infrared multifunctional drying room of the above scheme can be widely used in the field of material drying, and the drying room has the following advantages:

1) The far-infrared heating sheet that emits far-infrared rays on both sides is adopted, and the heating temperature can be controlled, which reduces the temperature difference between different drying areas in the drying room, and improves the drying efficiency and drying quality of materials;

2) The parallel flow air duct is adopted, and the structure of the air duct is improved, which can effectively even the air temperature and air humidity in the drying room, effectively dehumidify, improve the drying efficiency, and save costs;

3) The movable feeding cart is used to facilitate loading and unloading during use, and guide rails are set at the same time to guide the direction of the feeding cart and increase the convenience of use;

4) A control system is added, which can be operated manually and automatically at the same time, saving manpower;

5) It is heated by far-infrared heating sheet, which saves energy and has no pollution.

6) It saves cost and can be widely used in various drying fields.

Description of drawings

Fig. 1 is the structural diagram of a kind of far-infrared multifunctional oven of the present invention;

Fig. 2 is the structural diagram of the fresh air equal temperature and humidity removal system of a kind of far-infrared multifunctional drying room of the present invention;

Fig. 3 is the structural diagram of the far-infrared radiation heating system of a kind of far-infrared multifunctional oven of the present invention;

Fig. 4 is a structural diagram of a movable material vehicle of a far-infrared multifunctional drying room of the present invention;

Fig. 5 is a diagram of the direction of air during dehumidification of a far-infrared multifunctional drying room of the present invention;

Fig. 6 is a diagram showing the direction of air during circulation in a far-infrared multifunctional drying room of the present invention.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing 1-6 and embodiment:

A far-infrared multifunctional drying room, which is composed of a main body of the drying room 1, a movable material vehicle 2, a far-infrared radiation heating system 3, a fresh air uniform temperature and humidity removal system 4, and an intelligent control system 5. The movable material The car 2 and the far-infrared radiation heating system 3 are located in the main body 1 of the drying room, the fresh air uniform temperature and humidity removal system 4 is located inside the main body 1 of the drying room for dehumidification and internal circulation, and the intelligent control system 5 is located in the drying room On the outer wall of the main body 1 of the room, the drying requirements of different materials are achieved by adjusting the far-infrared radiation heating system 3 and the fresh air uniform temperature and humidity removal system 4 .

The main body 1 of the drying room is composed of a housing shell, an insulating layer, a sealing layer and a door 6. The shell of the drying room is divided into upper and lower layers, the roof of the upper layer is hollow in the center, and the lower layer is the inner cavity of the drying room Dry materials, the upper layer is used to install the fresh air dehumidification system 4, the insulation layer is fixed inside the housing shell, the sealing layer is fixed inside the insulation layer, and the door 6 includes a front door 61 and two side doors 62 .

The thermal insulation layer adopts one or more of color steel plate, thermal insulation board and cement. The sealing layer is made of stainless steel plate. Described movable material vehicle 2 is made up of material vehicle frame 21, tray support groove 22, material tray 23, universal wheel 24 and material vehicle guide rail 25, and described material vehicle frame 21 is provided with multi-layer, and the distance between each layer is 10cm -30cm, a reasonable distance can be set according to the needs of use, if the distance is too narrow, it is not conducive to the circulation of wind and moisture, if the distance is too wide, the effect of far-infrared radiation will be weakened, so the distance between each layer is 10cm-30cm is the best. The pallet support groove is fixed on each layer of the material truck frame to support the material pallet, and the material pallet can be dragged and placed on the pallet support groove of each layer, and the universal wheel is fixed on the material truck At the bottom of the frame, the guide rail of the material cart is fixed on the ground inside the main body of the drying room to guide the moving direction of the movable material cart.

In this embodiment, the material vehicle frame 21 is provided with eight layers, and the distance between each layer is 20cm. The pallet support groove 22 is fixed on each layer of the material vehicle frame 21 to support the material tray 23. The material tray 23 It can be dragged and placed on the tray support groove 22 of each layer, the universal wheel 24 is fixed on the bottom of the material truck frame 21, and the described material truck guide rail 25 is fixed on the ground inside the drying room main body 1 to guide the The moving direction of the mobile material cart 2.

The far-infrared radiation heating system 3 is composed of multiple sets of infrared radiation units 30, the infrared radiation unit is composed of a support frame 31, a heating sheet support 32 and a far-infrared heating sheet 33, and the support frame 31 is composed of steel pipes One end of the heating sheet support 32 is suspended and the other end is fixed on the support frame 31. The heating sheet support 32 has nine layers. The far-infrared heating sheet 33 is fixed on the heating sheet support 32. The infrared heating sheet 33 is a heating sheet emitting far infrared rays on both sides.

The fresh air uniform temperature and humidity removal system 4 is composed of a fan 41, a valve 42, an air duct 43, an air inlet 44 and an air outlet 45. The air inlet 44 and the air outlet 45 are connected with the air duct 43. The described The valve 42 is located on the air inlet 44 and the air outlet 45 and on the air duct 43 between the air inlet 44 and the air outlet 45 .

The above-mentioned far-infrared multifunctional drying room, wherein: the fan 41 is an axial flow fan, and two axial flow fans are provided according to the size of the drying room.

The circulation of the air in the traditional drying room is usually a through-flow type, and the air flow passes through the material layer for circulation. Although there is no heating device between the material trays of each layer, the material trays and materials will still block the airflow to a certain extent, so that the air can circulate. Unsmooth leads to uneven temperature problem. In addition, some layered traditional drying rooms also use advection air ducts. In order to achieve uniform distribution of wind, the method of adding perforated plates on the side is usually used. Although this method can make the wind evenly distributed on each layer to a certain extent, However, because the perforated plates block the circulation of the wind, the wind force is weak, which cannot achieve good circulation and dehumidification effects, and the increase of the perforated plates increases the cost. A far-infrared multifunctional drying room of the present invention solves the problem of uneven temperature due to the use of far-infrared heating sheets that emit far-infrared rays on both sides of each layer, but the far-infrared heating sheets have a certain shielding effect on the flow of wind , in order not to affect the dehumidification effect, the traditional through-flow air duct is changed to a parallel flow air duct, and the porous plate structure in the traditional drying room is cancelled, and the air duct inside the drying room is composed of far-infrared heating sheets. Guide the circulation of the wind, so that the wind flows in the drying room parallel to the direction of the material layer, and takes away the moisture in the drying room in time. This structure can not only ensure the uniform circulation of the wind in each layer, but also ensure the size of the wind force, effectively circulate and Dehumidification. In this embodiment, there are two air ducts 43 .

The intelligent control system 5 is composed of a temperature control system and a humidity control system. The intelligent control system 5 is located in an electrical control cabinet, and the electrical control cabinet is fixed on the outer wall of the main body 1 of the drying room. The temperature control system sets, monitors and regulates the temperature on the surface of the far-infrared heating sheet and the ambient temperature in the drying room. The humidity control system sets the moisture removal conditions in the drying room and controls the humidity in the drying room. Monitoring and regulation.

Described temperature control system comprises PLC, thyristor pressure regulation module, temperature sensor, wet and dry bulb and frequency converter, and described temperature sensor is fixed on the surface of far-infrared heating sheet 33, and the far-infrared heating sheet 33 surface of monitoring The temperature data is uploaded to the PLC, and the wet and dry bulbs are placed inside the main body 1 of the drying room, wherein the dry bulb temperature represents the ambient temperature in the drying room, and the monitored ambient temperature data is uploaded to the PLC, and the frequency conversion The device accepts the instruction of PLC to adjust the wind speed of the fan 41, and the silicon controlled rectifier voltage regulating module regulates the temperature of the far-infrared heating sheet 33 through voltage regulation. During use, the operating temperature and operating temperature threshold of the far-infrared heating sheet 33 are set by PLC, and the PLC automatically matches the corresponding voltage and sends it to the thyristor voltage regulating module for voltage regulation. When the far-infrared heating sheet 33 detected by the temperature sensor When the surface temperature was higher than the upper limit of the set temperature threshold of the far-infrared heating sheet 33, the PLC commanded the thyristor voltage regulating module to reduce the voltage of the far-infrared heating sheet 33, and when the temperature detected by the temperature sensor was lower than the set temperature of the far-infrared heating sheet 33 When the threshold is at the lower limit, the PLC commands the thyristor voltage regulating module to increase the voltage of the far-infrared heating sheet 33, and at the same time, the ambient temperature and the temperature threshold in the drying room are set through the PLC, and the wind speed of the fan 41 at this temperature is set. , when the dry bulb detects that the ambient temperature is higher than the upper limit of the temperature threshold, the PLC commands the frequency converter to control the fan 41 to increase the wind speed, and when the dry bulb detects that the ambient temperature is lower than the lower limit of the temperature threshold, the PLC commands the frequency converter to control the fan 41 to reduce the wind speed .

The humidity control system includes PLC, wet and dry bulbs and dehumidification indicator lights. The wet and dry bulbs monitor the humidity in the drying room in real time, and upload the monitoring data to the PLC. The PLC controls the valve 42 and The opening and closing of the fan 41 controls the humidity in the drying room. The humidity control system has a dehumidification mode and an internal circulation mode. The dehumidification mode is that the fan 41 is turned on, the valve 42 on the air duct 43 is closed, and the air inlet 44 and the valve 42 on the air outlet 45 are opened, the internal circulation mode is that the fan 41 is opened, the valve 42 on the air duct 43 is opened, the valve 42 on the air inlet 44 and the air outlet 45 is closed, and when entering the dehumidification mode, the dehumidification The indicator light is on. When in use, the moisture discharge humidity and the humidity discharge humidity threshold of the dry wet ball are set by PLC. When the humidity in the drying room monitored by the dry wet ball exceeds the upper limit of the set humidity discharge humidity threshold, the PLC commands the fan 41 to open, and the air duct The valve 42 on the 43 is closed, the valve 42 on the air inlet 44 and the air outlet 45 is opened, and enters the dehumidification mode. When the humidity in the drying room detected by the dry wet ball is lower than the lower limit of the dehumidification humidity, the PLC commands the fan 41 Open, the valve 42 on the air duct 43 is opened, the valves 42 on the air inlet 44 and the air outlet 45 are closed, and enter the internal circulation mode.

Described intelligent control system 5 has manual control mode and automatic control mode, and described manual control mode controls each stage in the drying process by manually operating the PLC touch screen, and described automatic control mode is used for drying room The initial value of each stage in the process is set and automatically adjusted according to the temperature and humidity data in operation. The initial value of each stage in the use of the drying room includes the use temperature of the far-infrared heating sheet 33, the use temperature threshold and the operating temperature. Time, humidity and humidity threshold of dry and wet bulbs, fan 41 wind speed, ambient temperature in the drying room and its temperature threshold.

The specific embodiments of the present invention have been described in detail above, but the present invention is not limited to the specific embodiments described above, which are only examples. For those skilled in the art, any equivalent modifications and substitutions to the system are also within the scope of the present invention. Therefore, equivalent changes and modifications made without departing from the spirit and scope of the present invention shall fall within the scope of the present invention.

Claims (14)

1. A far-infrared multifunctional drying room, characterized in that: the drying room is composed of a drying room main body, a movable material vehicle, a far-infrared radiation heating system, a fresh air uniform temperature and humidity removal system, and an intelligent control system. The movable material vehicle and the far-infrared radiation heating system are located in the main body of the drying room. The fresh air uniform temperature and humidity removal system is located in the main body of the drying room for dehumidification and adjusting and balancing the temperature in the drying room. The intelligent control According to the drying process and the drying requirements of different materials, the system regulates the infrared radiation energy of the far-infrared radiation heating system and the operation mode of the fresh air uniform temperature and humidity removal system to achieve the drying purpose. 2. A kind of far-infrared multifunctional drying room according to claim 1, characterized in that: the main body of the drying room is composed of a housing shell, an insulating layer, a sealing layer and a door, and the housing housing is divided into There are two upper and lower floors, the upper roof is hollow in the center, the lower layer is the inner cavity of the drying room, which is used for drying materials, and the upper layer is used to install the fresh air dehumidification system. The insulation layer is fixed inside the shell of the house, and the sealing layer is fixed On the inside of the insulation layer, the doors include a front door and two side doors. 3. A far-infrared multi-functional drying room according to claim 2, characterized in that: said insulation layer adopts one or more of color steel plate, insulation board and cement. 4. A far-infrared multifunctional drying room according to claim 2, characterized in that: said sealing layer is made of stainless steel plate. 5. A kind of far-infrared multifunctional drying room according to claim 1, characterized in that: the movable material cart is composed of a material carriage frame, a tray support groove, a material tray, universal wheels and a guide rail of a carriage, The material vehicle frame is provided with multiple layers, and the pallet support groove is fixed on each layer of the material vehicle frame to support the material pallet, and the material pallet is dragged and placed on the pallet support groove of each layer. The universal wheels are fixed on the bottom of the material vehicle frame, and the material vehicle guide rail is fixed on the ground inside the main body of the drying room to guide the moving direction of the movable material vehicle. 6. A far-infrared multifunctional drying room according to claim 5, characterized in that: the distance between layers of the material frame is 10cm-30cm. 7. A kind of far-infrared multifunctional drying room according to claim 1, characterized in that: the far-infrared radiation heating system is composed of multiple groups of infrared radiation units, and the infrared radiation unit is composed of a support frame, a heating sheet The bracket is composed of a far-infrared heating sheet, the support frame is composed of steel pipes, one end of the heating sheet support is suspended and the other end is fixed on the support frame, and the heating sheet support is provided with multiple layers, the number of layers is higher than that of the movable material cart The number of layers is one more, and the far-infrared heating sheet is fixed on the heating sheet support, and the far-infrared heating sheet is a heating sheet that emits far-infrared rays on both sides. 8. A far-infrared multifunctional drying room according to claim 1, characterized in that: the fresh air uniform temperature and humidity removal system is composed of a fan, a valve, an air duct, an air inlet and an air outlet, and the air inlet The air outlet and the air outlet are connected with the air duct, and the valve is located on the air inlet and the air outlet and on the air duct between the air inlet and the air outlet. 9. A far-infrared multifunctional drying room according to claim 8, characterized in that: said fan is an axial flow fan, and one or more axial flow fans are set according to the size of the drying room. 10. A far-infrared multifunctional drying room according to claim 9, characterized in that: one or more air ducts are provided according to the number of fans. 11. A kind of far-infrared multifunctional drying room according to claim 7, characterized in that: the drying room also includes an electrical control cabinet, and the intelligent control system is composed of a temperature control system and a humidity control system, and the The intelligent control system described above is located in the electrical control cabinet, the electrical control cabinet is fixed on the outer wall of the main body of the drying room, and the temperature control system sets the temperature on the surface of the far-infrared heating sheet and the ambient temperature in the drying room , monitoring and regulation, the humidity control system sets the humidity discharge conditions in the drying room and monitors and regulates the humidity in the drying room. 12. A kind of far-infrared multi-functional drying room according to claim 11, characterized in that: the temperature control system includes PLC, silicon controlled rectifier voltage regulating module, temperature sensor, wet and dry ball and frequency converter, the The temperature sensor is fixed on the surface of the far-infrared heating sheet, and the temperature data on the surface of the monitored far-infrared heating sheet is uploaded to the PLC. The dry and wet bulbs are placed inside the main body of the drying room, and the temperature of the dry and wet bulbs indicates the The ambient temperature in the environment, and upload the monitored ambient temperature data to the PLC, the frequency converter accepts the instruction of the PLC to adjust the wind speed of the fan, and the silicon controlled rectifier voltage regulation module controls the far-infrared heating element by voltage regulation. temperature is adjusted. 13. A far-infrared multi-functional drying room according to claim 12, characterized in that: the humidity control system includes PLC, wet and dry bulbs and dehumidification indicator lights, and the wet and dry bulbs monitor the drying room in real time The humidity in the drying room is uploaded to the PLC, and the PLC controls the humidity in the drying room by controlling the opening and closing of the valve and the fan. The humidity control system has a dehumidification mode and an internal circulation mode. The dehumidification mode is that the fan is turned on, the valve on the air duct is closed, and the valves on the air inlet and outlet are opened. The internal circulation mode is that the fan is turned on, the valve on the air duct is opened, and the valves on the air inlet and outlet are closed. The dehumidification indicator lights up in the dehumidification mode. 14. A kind of far-infrared multifunctional drying room according to claim 13, characterized in that: the intelligent control system has a manual control mode and an automatic control mode, and the manual control mode is controlled by manually operating the PLC touch screen. Each stage in the drying process is controlled. The automatic control mode is to set the initial value of each stage during the use of the drying room, and automatically adjust the operation according to the temperature and humidity data during operation. The use of the drying room The initial values of each stage in the process include the operating temperature, operating temperature threshold and running time of the far-infrared heating sheet, the humidity of the dry bulb and the threshold of the humidity, the wind speed of the fan, the ambient temperature in the drying room and its temperature threshold.