CN2287279Y

CN2287279Y - Electric infrared drying apparatus

Info

Publication number: CN2287279Y
Application number: CN 96244011
Authority: CN
Inventors: 杨秀原
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-11-14
Filing date: 1996-11-14
Publication date: 1998-08-05
Anticipated expiration: 2006-11-14

Abstract

The utility model relates to an electric infrared drying apparatus which can be arranged at one side or both sides of the object which can be dried. The utility model comprises an electric heating plate, an electric heating control circuit and a plurality of groups of electric heating coils. A back plate of the electric heating plate is arranged on the inner wall of a drying machine, and a radiant plate is oppositely arranged on the object which can be dried. The outer surface of the electric heating plate is sprayed with a layer of special coating material in order to improve the efficiency generated by the infrared ray and make the heat source distributed homogeneously on the plate body. The inner of the electric heating plate is divided into a plurality of separated regions, and each separated region is provided with a group of electric heating coil. Each group of electric heating coil is respectively controlled by different power, and each separated region is also provided with a temperature sensing device in order to sense the temperature of separated region. The operator can regulate the temperature of each group of electric heating coil according to the requirement.

Description

The infrared ray electric heating drier

The utility model belongs to heating equipment, relates in particular to a kind of infrared ray electric heating drier.

Traditional to fabric, the drying unit of tablet has two kinds, a kind of is to utilize hot coal oil as thermal source, another kind is to utilize hot-air as thermal source, shown in Figure 1 is to utilize hot coal oil to make the drying unit of thermal source, this drying unit 10 is located in the drying machine body 11, be provided with a radiant panel 12 towards body 11 inboards, the back side of radiant panel 12 is provided with the metallic plate of the snakelike shape of heat supply kerosene stream 13 usefulness, hot coal oil can be along stream 13 circulations of snakelike shape, circulate in stream by hot coal oil, and by fabric or tablet 40 heating of radiant panel 12 radiation reflected heat to the impregnation resin liquid, give drying, the device of this use hot coal oil heating, the expense of purchasing is very high, the stream 13 that the hot coal oil of snakelike shape passes through, can't reach sensitive especially temperature control, and cooling effect is poor, in addition, hot coal oil is very harmful material, especially in the use of hot coal oil, having waste gas or grease produces, cause drier structure to damage and air pollution, also bring danger to operation, Fig. 2, shown in 3 is to utilize air to make the drying unit 20 of thermal source, it comprises a radiator 21, be placed with heating pipe 22 in the radiator 21, by heat hot tracheae 22, with the tube wall of heat conduction at this heating pipe 22, and then conduct to radiator 21, thermal source is reflexed to fabric or tablet 40, thereby reach dry purpose, simultaneously, the arrival end and the port of export at heating pipe 22 are provided with valve slip lid 23, with hot gas volume or the speed in the control heating pipe 22, and then control radiator 21 radiation capacity transversely, though, utilize hot-air to do thermal source Billy and make thermal source conveniently with hot coal oil, but the volume of heating pipe 22 is big, it is big to take up room, in addition, some fabric or tablet are when needing different bake out temperatures because of material is different, the hot-air seasoning device can't reach because temperature is wayward, moreover above-mentioned two kinds of drying units periphery auxiliary device is more, makes cost up, maintenance difficult, and temperature only can reach 250 the degree, therefore, the time of carrying out drying procedure is longer.

The purpose of this utility model is to provide a kind of infrared ray electric heating drier, make it can stablize temperature control, can adjust temperature and heating range with the need, can utilize electric heating in the extremely short time, to reach a high temperature or rapid cooling, save the energy, reduce cost, and pollution-free generation when using, to solve the existing defective of traditional product.

The utility model adopts following technical scheme:

Infrared ray electric heating drier of the present utility model, it is by electric hot plate, array electrically-heated coil and electric control circuit are formed, wherein electric control circuit links to each other with described electric hot plate, and the backboard of this electric hot plate is located on the drying machine, the backboard opposite side connects a radiant panel, separate between backboard and radiant panel several marker spaces are set, the array electrically-heated coil is located at respectively in each marker space of electric hot plate, each is organized that electrically-heated coil all extends to the main body outside and connects with different power supply respectively, temperature controller 1 is controlled thermoelectric antithesis 2 respectively in the electric control circuit, variable resistor VR, and to controllable silicon SCR output 4 to 20mA electric currents, temperature controller 1 is by two input line R, T is respectively through binding post NFB ₁, NFB ₂Connect with the controllable silicon SCR module, and an output in the SCR module is direct and electric heater links, another output connects electric hot plate through current transformer CT, in addition, and upper limit contact K ₂With thermal light LM ₁Series connection, lower limit contact K ₃With low temperature indicator lamp LM ₂Series connection, two ends after its series connection all connect with described temperature controller 1, the break-make of power switch K control temperature controller and power supply, the outer surface of radiant panel sprays a coating, the big I of marker space area is provided with a temperature-sensitive sticker with the width adjustment of oven dry thing in each marker space, the electrically-heated coil in the marker space can horizontally set, also can vertically be provided with, the upper and lower end appropriate location of drying machine is respectively equipped with hot-wind inlet and hot-blast outlet.

Drying unit of the present utility model is by the heating of the electrically-heated coil in the drying unit, thermal source is conducted on the radiant panel, utilize the special coating of radiant panel outer surface coating can improve the efficient that infrared ray produces, simultaneously infrared heat reservoir can evenly be distributed and calorify fabric or tablet, significantly shorten the time of drying procedure, be provided with several marker spaces in the electric hot plate, when fabric or tablet only need a certain section oven dry, the electric weight of the electrically-heated coil of the marker space at fine-tuning this section of electric hot plate of operator place, make and reach needed temperature, drying unit of the present utility model is owing to utilize electrical heating, the upper limit of its variations in temperature is more much bigger than traditional product, the variations in temperature required time is few, need not refill and establish cooling device and can lower the temperature voluntarily, and cooling rate is fast, save the energy and volume effectively, can not pollute yet, electrically-heated coil is on each marker space that separate unit is assembled in electric hot plate, when needing repairing, the electrically-heated coil that only changes place, a certain marker space gets final product, need not whole replacings, made things convenient for maintenance work, on the drying machine body, the lower end is respectively equipped with hot-wind inlet and hot-blast outlet, importing by hot blast, when oven dry can be produced steam, fog and surperficial volatile matter are air-dry or take away, and further reach the effect of flash baking.

Specifically narrate embodiment below in conjunction with accompanying drawing:

Fig. 1 utilizes hot coal oil to make the structural representation of the drying unit of thermal source for tradition

Fig. 2,3 utilizes hot-air to make the drying unit structural representation of thermal source for traditional

Fig. 4 is the structural representation of the utility model electric hot plate

Fig. 5 is the vertical view of Fig. 4

Fig. 6 is the side view of Fig. 4

Fig. 7,8 is provided with view for the utility model electrically-heated coil on electric hot plate

Fig. 9 is located at longitudinal profile schematic diagram on the drying machine for the utility model electric hot plate

Figure 10 is the utility model electric heating control circuit figure

Consult shown in Fig. 4,5,6,10, infrared ray electric heating drier 30 of the present utility model, the main electricity that utilizes is supplied with thermal source, it comprises electric hot plate 31, array electrically-heated coil 34 and electric control circuit, wherein electric control circuit links to each other with described electric hot plate, and temperature controller 1 is controlled thermoelectric antithesis 2, variable resistor VR respectively in the electric control circuit, and to controllable silicon SCR output 4 to 20mA electric currents, temperature controller 1 is by two input line R, T, respectively through binding post NFB ₁, NFB ₂Connect with the controllable silicon SCR module, and an output in the SCR module is direct and electric heater links, another output connects electric hot plate through current transformer CT, in addition, and upper limit contact K ₂With thermal light LM ₁Series connection, lower limit contact K ₃With low temperature indicator lamp LM ₂Series connection, the two ends after its series connection all connect with described temperature controller 1, the break-make of power switch K control temperature controller and power supply, two binding post NFB ₁, NFB ₂Respectively through fuse FUSE ₁, FUSE ₂Connect with the SCR module, temperature controller 1 adopts commercially available proportional plus integral plus derivative controller, and current transformer CT also adopts commercially available product, binding post NFB ₁And NFB ₂Capacity be 30A, the backboard 311 of electric hot plate 31 is located on the inwall 33 of drying machine, backboard 311 is a plate body that insulate and have the good heat conductive performance, backboard 311 opposite sides connect a radiant panel 32, radiant panel 32 is metallic plates of handling through special surface, and at its outer surface spraying one deck special coating 321, by this layer special coating 321 thermal source that conducts in radiant panel 32 is evenly distributed, produce the ultrared thermal efficiency to improve, 32 separations of backboard 311 and radiant panel are provided with several marker spaces 312, and the size of each marker space 312 area can be with the width adjustment of oven dry thing.

Consult Fig. 7, shown in 8, array electrically-heated coil 34 is located at respectively in each marker space 312 of electric hot plate 3, each is organized that electrically-heated coil 34 all extends to the main body outside and connects (not shown) with different power supply respectively, electrically-heated coil 34 in the marker space 312 can horizontally set, also can vertically be provided with, adjust the electric weight of the electrically-heated coil 34 in each marker space 312, can control the temperature of electrically-heated coil 34 in each marker space 312, the centre position respectively is provided with a temperature-sensitive sticker 35 (shown in Figure 4) in each marker space 312, can respond to the height of temperature in each marker space 312 by temperature-sensitive sticker 35, temperature-sensitive sticker 35 ends slightly protrude out outside the electric hot plate 31, so that each marker space 312 temperature coefficient is passed in a console (not shown), make the operator be convenient to carry out the fine setting of delivery, satisfy the electric heating temperature that needs reach in each marker space 312.

Consult shown in Figure 9, drying unit 30 of the present utility model is installed in respectively on the inwall of drying machine body 11 both sides, and be positioned at the fabric desiring to dry or the both sides of tablet 40 just, and vertically be provided with along fabric or tablet 40, by 34 heatings of the electrically-heated coil in the drying unit 30, thermal source is conducted on the radiant panel 32, utilize one deck special coating 321 of radiant panel 32 outer surfaces spraying, can improve the efficient that infrared ray produces, simultaneously infrared heat reservoir can evenly be distributed, calorify fabric or tablet 40, significantly shorten the time of drying procedure, contrast Fig. 5 again, Fig. 7, shown in Figure 8, be provided with several marker spaces 312 in the electric hot plate 31, when fabric or tablet 40 only need, when hypomere oven dry (or higher temperature) and stage casing do not need (or lower temperature) oven dry, on the fine-tuning electric hot plate 31 of operator, reach the electric weight of electrically-heated coil of each marker space 312 of middle section down, make in each marker space 312 and reach needed temperature, identical, if fabric or tablet 40 need on its left side, in or right side when reaching respectively different temperature, the operator also adjusts electric hot plate 31 left sides, in, or the electric weight of the electrically-heated coil 34 in the marker space, right side 312, make this place reach temperature required, just, drying unit 30 of the present utility model can carry out temperature control according to need, make fabric or tablet 40 can accept ultrared heating uniformly, or respectively on fabric or the tablet 40, down, a left side, right position is required and carry out adjustment, owing to utilize electrical heating, the upper limit of its variations in temperature is more much bigger than traditional product, the variations in temperature required time is few, need not refill and establish cooling device and can lower the temperature voluntarily, and cooling rate is fast, save the energy and volume effectively, can not pollute yet, electrically-heated coil 34 is on each marker space 312 that separate unit is assembled in electric hot plate 31, when needing repairing, the electrically-heated coil 34 that only changes 312 places, a certain marker space gets final product, need not whole replacings, made things convenient for maintenance work.

The upper and lower end of drying machine body 11 is respectively equipped with a hot-wind inlet 36 and hot-blast outlet 37, when drying unit 30 carries out the infrared ray heating, the surface of fabric or tablet 40 easily has steam, fog and surperficial volatile matter to adhere to, importing by hot blast, can be with steam, fog and surperficial volatile matter air-dry or take away, further reach the effect of flash baking.

In sum, infrared ray electric heating drier of the present utility model, reasonable in design, practicality can be adjusted the height and the scope of application of temperature according to actual needs, save the energy effectively, reduce cost, be convenient to maintenance, and pollution-free, overcome the defective of traditional product, reached design purpose.

Claims

1, a kind of infrared ray electric heating drier, it is characterized in that, it is made up of electric hot plate, array electrically-heated coil and electric control circuit, wherein electric control circuit links to each other with described electric hot plate, and the backboard of this electric hot plate is located on the drying machine, and the backboard opposite side connects a radiant panel, separates between backboard and radiant panel to be provided with several marker spaces, the array electrically-heated coil is located at respectively in each marker space of electric hot plate, and each is organized that electrically-heated coil all extends to the main body outside and connects with different power supply respectively.

2, infrared ray electric heating drier according to claim 1, it is characterized in that, temperature controller 1 is controlled thermoelectric antithesis 2, variable resistor VR respectively in the described electric control circuit, and to controllable silicon SCR output 4 to 20mA electric currents, temperature controller 1 is by two input line R, T, respectively through binding post NFB ₁, NFB ₂Connect with the controllable silicon SCR module, and an output in the SCR module is direct and electric heater links, another output connects electric hot plate through current transformer CT, in addition, and upper limit contact K ₂With thermal light LM ₁Series connection, lower limit contact K ₃With low temperature indicator lamp LM ₂Series connection, the two ends after its series connection all connect with described temperature controller 1, the break-make of power switch K control temperature controller and power supply.

3, infrared ray electric heating drier according to claim 1 is characterized in that, the outer surface of described radiant panel sprays a coating.

4, infrared ray electric heating drier according to claim 1 is characterized in that, the size of described marker space area can be with the width adjustment of oven dry thing.

5, infrared ray electric heating drier according to claim 1 is characterized in that, is provided with a temperature-sensitive sticker in described each marker space.

6, infrared ray electric heating drier according to claim 1 is characterized in that, the electrically-heated coil in the described marker space can horizontally set, also can vertically be provided with.

7, infrared ray electric heating drier according to claim 1 is characterized in that, the upper and lower end appropriate location of described drying machine body is respectively equipped with hot-wind inlet and hot-blast outlet.