CN209031228U - A kind of continuous swelling device suitable for granule state food material - Google Patents

Abstract

The utility model relates to a kind of continuous swelling devices suitable for granule state food material, including the blower, air heater, feed zone and cyclone separator equipped with feeder sequentially connected；Wherein, the air outlet of the blower is connected to the air inlet of air heater；The both ends of the feed zone pass through pipeline respectively and are connected to the material inlet of the hot-blast outlet of air heater and cyclone separator, and form wedge-shaped air duct, negative pressure region is formed when passing through hot wind, is additionally provided with spout on the duct wall of the negative pressure region, is matched by hopper and feeder；The cyclone separator has material outlet and hot-blast outlet and is able to achieve material to be separated with hot wind.Using the continuous swelling device of the utility model, granule state food material carries out uniform and strong heat exchange with hot-air after entering in a short time, and the fast vaporizing for causing internal moisture leads to extruding, realizes the continuous industry of puffing process.

Description

A kind of continuous swelling device suitable for granule state food material

Technical field

The utility model belongs to food machinery field, is specifically related to a kind of suitable for the continuous swollen of granule state food material Makeup is set.

Background technique

It is to deform material that the unit operation of " material extruding " as food processing field, which is a thermal energy, The process of mechanical energy is long-standing for food processing.Such as puffed rice is the daily pot foods preferred of people.From food Product processing technology angle, the reproduced rice of conventional grain and the extrusion forming in recent years occurred can be obtained swollen by this kind of processing The character of change, to be improved in terms of taste flavor or rehydration.

Currently, the extruding of food material, using " airflow puffing " technology, old-fashioned corn popper is its Typical Representative, It is the prototype for industrializing bulking machine.Corn popper is actually pressure vessel, process raw material (generally corn, rice, semen viciae fabae, The common cereal such as glutinous millet) it is put into machine, it covers cover and is exerted oneself jointly with extension bar and boosting pipe, rotating head screw rod is to cover Pressurization is combined closely the eyesight elbow of the big elbow of body and cover fixation with sharp seal cavity.Puffed rice rack is arrived On bracket, lower section is heated with more prosperous stove fire, while (small device uses hand rotation, can also be by by rotation corn popper Mechanical facility is realized), make raw material thermally equivalent in machine and softens.Due to heated, pressure is slowly increased in machine, reaches required pressure When (different material need pressure different) stop heating, by corn popper twisting side, machine mouth such as gunnysack etc is connect It receives object to cover, firmly pulls eyesight elbow by boosting pipe (covering on eyesight elbow), be allowed to loosen with the hasp of big elbow, in this way In machine under the action of pressure, apparatus lid opening, the high temperature and high pressure gas in machine is ejected together with processing raw material.It sprayed Cheng Zhong, since extraneous pressure declines rapidly, so that cereal internal gas is expanded rapidly outward, thus cereal is just popped, As instant puff.Continue charging capping, follow the prescribed rules, is both a kind of intermittent extruding production method and the street of early stage The side means of livelihood.

" air flow puffing machine " that modern food factory uses is still and extruding original identical with old-fashioned corn popper is utilized Reason only improve to adapt to industrialized production, such as operational facilities: figure and single batch yield is bigger, by coal stove Heating is changed to gas heating, is changed to be driven by electricity by hand rotation.

Modern industrial technology to be automated as feature, and automates premised on serialization.When we are with Modern Perspective When being examined closely, the equipment of " air flow puffing machine " as a kind of intermittent operation, it appears excessively " ancient ".Firstly, this biography The energy utilization rate in such a way that flame (coal fire or combustion gas) heats pot body indirect heating material of system is lower；Second, intermittent behaviour Make to mean more human assistance work, to make artificial increased costs；Third, the more often product of human assistance work The hidden danger of quality；4th, there is huge noise when baking scorching hot and each opens cover to the wound of human body in the environment of operation Evil has been indisputable fact.

So eliminating the above disadvantage, serialization, the automation of the operation of this unit of granule state food material extruding are realized, That is, it is modernized, and is the original intention for researching and developing the utility model.

Utility model content

The utility model intends to solve the technical problem by providing a kind of continuous swelling dresses suitable for granule state food material It sets, using the combination of blower, air heater and cyclone separator, the system for constructing an offer hot wind hot environment makes to eat Product material is heated by short time high temperature after entering and causes internal moisture and vaporize and then realize extruding, and realizes the company of puffing process Continuous industrialization.

The utility model provides a kind of continuous swelling device suitable for granule state food material, which includes sequentially connecting Blower, air heater, the feed zone and cyclone separator equipped with feeder connect；Wherein, the air outlet of the blower and sky The air inlet of hot-air heater is connected to；The both ends of the feed zone pass through the hot-blast outlet and whirlwind of pipeline and air heater respectively The material inlet of separator is connected to, and forms wedge-shaped air duct, negative pressure region is formed when passing through hot wind, the pipeline of the negative pressure region It is additionally provided with spout on wall, is matched by hopper and feeder；There is the cyclone separator material outlet and hot wind to go out Mouthful and be able to achieve material and separated with hot wind.

The continuous swelling device of the utility model is also set up in the connecting pipe between the air heater and feed zone There is temperature and humidity monitor element, can show and monitor the hot blast temperature and humidity that feed zone is sent out and entered from air heater.

The continuous swelling device of the utility model, which is characterized in that the feeder is selected from the pre- heat function of material Shocking feeder, screw feeder or belt feeder etc..

Further, for example, the feeder includes microwave tunnel formula feeder and fluidized bed feeder etc..

The continuous swelling device of the utility model, the cyclone separator material outlet are provided with airlock.

The continuous swelling device of the utility model, the blower are centrifugal fan.Specifically, due to being processing hot wind, Preferably select " high temperature resistant heat insulation type " blower.

Further, the blower is the centrifugal fan that wind pressure is greater than 500Pa, conducive to the wind for brushing material particles is realized Speed is greater than the floating velocity of material particles.

In one specific embodiment.Continuous swelling device provided by the utility model for granule state food material, Further include having roller sheet mechanism, there are at least two rolls that can be rotated towards each other and roll seam is adjustable, the roller sheet mechanism is set At cyclone separator material outlet, rolling processing can be carried out to the puffed material from cyclone separator material outlet.

In one specific embodiment, the hot-blast outlet of the cyclone separator of the continuous swelling device of the utility model and institute The air inlet conducting of blower is stated, and is provided with volume damper.The volume damper can control as needed through cyclonic separation The hot wind and fresh air of device evolution enter the ratio of blower.

Continuous swelling device according to the present utility model suitable for granule state food material, the granule state food material It can be the granule materials such as cereal-granules or reconstructed particle shape food material.

The granule state food material that the utility model is applicable in, it should be understood that the food material with appropriate granularity, and The specific size of material size is not particularly limited and is required, that is, can be for example complete cereal-granules (the various grain of rices, Beans etc.), the particle of simple crushing can also be passed through with cereal；Certainly, reconstructed particle shape food material, such as all kinds of reproduced rices Deng the understanding of grain graininess is also same.

Scientific group of blower, air heater and cyclone separator is utilized in the continuous swelling device of the utility model It closes and " the wedge-shaped air duct " of feed zone is arranged, when the hot wind from air heater is by the wedge shape air duct, actually pass through It has crossed in one section of channel changed from small to big (wedge-shaped air duct), hot wind is flowed from the small one end of sectional area to the big one end of sectional area, and Negative pressure is generated due to aerodynamic principle, the region is made to become negative pressuren zone, it, can will be by feeding by the spout opened up In the granule state food material sucking feed zone that glassware is continuously and quantitatively put into, and make material in hot wind in a manner of " pneumatic conveying " Lower suspended motion is swept along, carries out gas solid separation into cyclone separator, material absorbs heat in this course and generates extruding. Different from the technology pattern of " slow heating-release suddenly " that traditional puffed technology uses, the proposition of the utility model is to be based on " high temperature, short time " technology pattern, material is by becoming extruding product, the utility model when utility model device processing discharge Device realizes basic principle based on continuous swelling are as follows: makes granule materials by being opened in the spout of feed zone wedge area Be inhaled into, material and the hot wind from air heater meet and in being moved together with suspended state, into cyclone separator and quilt Separation is discharged from airlock.Granule materials and hot wind carry out strong and uniform heat exchange in this course, thus at this Reach higher temperature in the shorter short time, material moisture content has little time dry evaporation in interior evaporation, forms numerous bubbles, make Material is able to extruding.

The hot-blast outlet of cyclone separator is connected with the air inlet of the blower, hot wind is then from cyclone separator top Exhaust outlet evolution, and circulation partly return system can be participated in by regulating valve, energy consumption is both saved, it is also wet conducive to hot wind is adjusted Degree.Using the extruding apparatus of the utility model, operational process can be such that hot wind skims in the material particles surface of suspended state high speed, Realize heat exchanging process it is uniform and strong, make suck feed zone material particles in short-term in be heated, for " material extruding " this For the special technique purpose of kind, implementation result is shown compared to traditional handicraft, this " high temperature, short time " heating mode more adduction Reason.

For different applications, also there is a series of index of refinements to the final extruding form of material.Such as: macroscopic view Puffed degree and microcosmic Air Bubble Size, shape and density etc..In the utility model, at the material outlet of cyclone separator also Be arranged roller sheet mechanism, can to it is being just discharged, still in humid tropical condition swelling granular carry out rolling processing, to accurately control it Final puffed degree.Granule materials after extruding are handled through the rolling of roll, can be flattened because of the spherical bubbles in particle and be formed disk Shape, to reduce macroscopical puffed degree of particle while holding bubble original quantity.This character often has value. For example, for rehydration type instant-rice, it means that (sedimentation rate is too small to be made for shorter rehydration time and biggish sedimentation rate Water line is blocked at grain of rice floating, influences the operation of quantitative watering), it is conducive to promote rehydration effect.

To sum up, the utility model provides a kind of continuous swelling device suitable for granule state food material, passes through wind The combination of machine, air heater and cyclone separator, construct one offer hot wind hot environment system, in conjunction with feeder with Feed zone and wedge-shaped air duct setting, it is ensured that granule materials can carry out abundant and uniform heat exchange with suspended state and thermal current, And food material can control and realize short time high temperature heating, that is, realize " high temperature, short time " mode, cooperate the setting of roller sheet mechanism, more Conducive to accurately controlling its final puffed degree.Also, one kind provided by the utility model can be worked in a manner of serialization Device, industrial application has advantage energy saving, easy to automate, and eliminates traditional puffed machine to human body Noise injury, for realize puffing process continuous industryization have significant practical value.

Detailed description of the invention

Fig. 1 is a kind of schematic diagram of embodiment of continuous swelling device of the utility model.

Fig. 2 is the schematic diagram of another embodiment of the continuous swelling device of the utility model.

Part numbers in Fig. 1:

1- blower；2- air heater；3- temperature and humidity instrument；4- spout；5- feed zone；6- feeder；7- whirlwind point From device；8- airlock；9- regulating valve；10 --- roller sheet mechanism.

Specific embodiment

The design of the utility model is described in detail below in conjunction with the drawings and specific embodiments and realizes process and beneficial Effect more fully understands the mentality of designing and embodiment of the utility model to facilitate reader, but should not constitute to this reality With the restriction of novel enforceable range, the utility model specification and claims describe any change in scope and Modification should all fall into the protection category that the utility model claims define.

It is the schematic diagram of the continuous swelling device of granule state food material in the present embodiment with reference to Fig. 1.As shown in Figure 1, In the device, the air outlet of the blower 1 as wind pushing mechanism is connected with the air inlet of air heater 2, air heater Hot-blast outlet is connected to by pipeline with feed zone 5, and feed zone 5 is to be set to air heater 2 and 7 connecting pipe of cyclone separator On one section of wedge-shaped air duct, be additionally provided with spout 4 on duct wall, matched by hopper with feeder 6, wedge-shaped air duct is set It sets so as to form negative pressure region when hot wind passes through；The cyclone separator 7 has material outlet and hot-blast outlet and is able to achieve object Material is separated with hot wind.

When processing and extruding operation, the air that blower 1 is sent into enters after being heated in air heater 2 from hot-blast outlet The wedge-shaped air duct of feed zone 5, the feed zone 5 is wedge shaped (so also referred to as wedge-shaped air duct) along the axial slices of pipeline, and hot wind is herein Region is flowed from the small one end of sectional area to the big one end of sectional area and generates negative pressure due to aerodynamic principle, can be with Feed zone 5 will be sucked by spout 4 from the granule materials of feeder 6, and makes material in hot wind in a manner of " pneumatic conveying " Lower suspended motion is swept along, realizes gas solid separation into cyclone separator 7, respectively from the heat outlet on top and the material row of lower end Put mouth discharge cyclone separator.Granule materials and hot wind carry out strong and uniform heat exchange in this course, thus at this Reach higher temperature in one shorter short time, and realize gas solid separation, material moisture content have little time dry evaporation and in internal vapour Change, form numerous bubbles, absorb heat and generate extruding, extruding product is finally discharged through discharge of materials mouth.

With reference to Fig. 1, in one embodiment of the extruding apparatus of the present embodiment, between air heater 2 and feed zone 5 Temperature-humidity monitoring instrument 3 is additionally provided in connecting pipe, for showing and monitoring from the submitting of air heater 2 and enter feed zone 5 hot blast temperature and humidity.The temperature-humidity monitoring instrument 3 is the temperature, humidity display and Automatic Control Component of system hot wind, is Conventional and standard component in hot wind conveying and control operation, detects and handles the temperature and humidity parameter of hot-air system, feed back To air heater, so that the temperature and humidity of control hot wind can be adjusted according to the characteristic of processing materials at work.

The continuous swelling device of the present embodiment, blower 1 are the wind-force source of system, and satisfaction provides all kinds of particulate matters The requirement of wind-force floating velocity, recommends the centrifugal fan for selecting wind pressure to be greater than 500Pa；Due to being processing hot wind, so blower is most It is good to select " high temperature resistant heat insulation type ".

Blower 1 be sent into gas by air heater 2 become set temperature hot wind, the air heater 2 it is specific Parameter and performance selection are considered as the characteristics of processing materials, for example, hot blast temperature needed for cereal-granules extruding generally 120~ Between 350 degrees Celsius, thus corresponding heating element should select can higher temperature resistant " dry combustion method heating tube " or resistance heating wire.

Feed zone 5 is that the material of extruding system puts into area, and with reference to Fig. 1, feed zone 5 is actually one section and (feeds with opening Material mouth 4) wedge-shaped pipeline, the granule materials of investment suck feed zone 5 by the negative pressure for generating hot wind flow process, and with " gas Power conveying " mode makes material sweep along lower suspended motion in hot wind, the wedge-shaped air channel structure of feed zone 5 is not particularly limited, only Meet the pneumatic disposition for learning requirement and institute's processing materials.

In the present embodiment, feeder 6 is the feeding device of extruding system, for material particles are continuous and equably quantitative Put into the spout 4 of feed zone 5.The concrete form of feeder 6 might have different selections according to operating condition, but belong to this field Content well known to technical staff, such as can be shocking feeder or screw feeder, belt feeder, and preferably have pre- Heat function.And to the material of some relative difficult extrudings, such as: the biggish beans of particle scale, reproduced rice of extrusion forming etc., The feeder with pre- heat function can be then used, such as: microwave tunnel feeder (belt feeder), fluidized bed feeder (shocking feeder) etc..Feeder 6 can be one or more, assemble according to production design, and no matter which kind of is fed Glassware, the connection with the utility model heating system are conventional means, are not particularly limited.

Cyclone separator 7 is the device realizing material in extruding system and separating with hot wind, and top is gas discharge outlet, lower end It is granular material discharged mouth, is usually installed with the component of airlock or similar functions, material is smoothly discharged.As shown in fig. 1, originally The lower end of the cyclone separator 7 of embodiment is airlock 8 granule materials through Hot-blast Heating extruding are discharged；As before It states, enters in cyclone separator 7 at the material and hot wind for the mixing shape that suspends, material is settled to bottom under the effect of gravity, works as peace In the case of filling airlock 8, material is discharged by rotating airlock 8, to complete heating process；And hot wind is by cyclonic separation The pipeline evolution at 7 top of device, can be taken away by subsequent thermal using facility.Fig. 1 is still referred to, in the present embodiment, on cyclone separator 7 The hot-blast outlet at end is connected with the air inlet of wind pushing mechanism blower 1, and is provided with regulating valve 9.It is discharged from 7 upper end of cyclone separator Hot wind be conditioned valve 9 and divide for two parts, a part is imported into the air inlet of blower 1, continues to participate in circulation；Another part hot wind Atmosphere, which can be then discharged into, or separately matched takes hot facility to be used.The ratio of this two parts hot wind can be controlled by adjusting regulating valve 9, and This namely controls the ratio of hot wind and fresh air into 1 air inlet of blower.

In one or more embodiments of the utility model, it is conducted between cyclone separator 7 and blower 1 and tune is set Valve 9 is saved, quantitatively controls the amount of thermal current (hot wind) circulating involuting system that material extruding is isolated simultaneously, bring benefit is at least Two aspects: the hot wind for participating in circulation, which enables the system to consumption because of the heat energy utilization of itself, to be reduced；On the other hand, the hot wind looped back The moisture of material evaporation can be carried, also can adjust the humidity of heating system hot wind.Hot wind with certain humidity connects with material When triggering heat exchange, it is able to suppress the evaporation of surface of material moisture, to reduce temperature loss, and makes more moisture in object Material is internal to be participated in being vaporized into bubble, is conducive to extruding.Certainly, the humidity of circulating air is excessive in system, will make the particle mistake after extruding In softness, cause it is cooling after the rebound of extruding stomata shrink, reduce final expansion rate it is therefore desirable to by air quantity regulating element come Control the hot wind dosage of return system.

It is another embodiment of the utility model with reference to Fig. 2, on the basis of Fig. 1 shows embodiment, is further arranged Roller sheet mechanism 10, in the embodiment of fig. 2, roller sheet mechanism 10 is arranged at the discharge of materials mouth of cyclone separator, can to by The puffed material of cyclone separator material outlet discharge carries out rolling processing, to accurately control its final puffed degree.It rolls At two or more, the gap of each pair of roll can be adjusted the roll quantity of piece mechanism 10 within the set range；Roll is straight Diameter is between 10-1000 millimeters.In extruding production, while each pair of roll of roller sheet mechanism is driven to relatively rotate, and according to processing The requirement of material adjusts the revolving speed of roll seam and roll, carries out rolling processing to the puffed material from cyclone separator.This The roller sheet mechanism 10 of embodiment can be the roller mill with two or four rolls (a pair of or two pairs of rolls), each pair of roll Gap can adjust setting in 0-20 millimeters of ranges, and roll rotational speed can regulate and control between 0-10000rpm.

The effect that roller sheet mechanism and roll processing steps is arranged is the adjusted roll to appropriate gap of the granule materials after extruding Rolling processing is carried out, can be discoid because of the spherical bubbles flattening in particle, to subtract while holding bubble original quantity Small macroscopical puffed degree of particle, to be able to satisfy the application and process requirements of different dilated products.For example, convenient to rehydration type For rice, it means that (sedimentation rate is too small to be will cause grain of rice floating and block note for shorter rehydration time and biggish sedimentation rate Waterline influences the operation of quantitative watering).Certainly, according to the characteristics of processing materials and needs, can also setting between biggish roll Gap and pass through puffed material directly.

In short, being determined using the heating system namely continuous swelling device of the present embodiment for the characteristic of institute's processing materials Suitable technological parameter, the dilated product of available satisfaction.For most materials, such as grain granule materials, system operating After getting up, feeder 6 is manipulated, material particles is made to put into feed zone 5 by spout 4, starts to mix with hot wind, to by whirlwind The airlock 8 of 7 bottom of separator is discharged, and handles in conjunction with the rolling of roller sheet mechanism 10, completes a heating process, the used time is very short Temporarily, usually only ten seconds or so, be typical " high temperature, short time " mode.The advantages of being illustrated in addition to front, using the device pair Material implements a big benefit of " high temperature, short time " processing, be can reduce nutrition and flavor substance etc. in food material to temperature-sensitive Feel the loss of composition.

In operation, the wind speed of hot wind is generally required to be greater than or equal to the floating velocity of granule materials；Hot blast temperature (and it is wet Degree) should be greater than or equal to material swelling temperature；Meanwhile residence time of the material under hot wind environment should ensure that it absorbs foot Enough heats can be groped to can determine, and obtain good expansion effect in conjunction with material variety and characteristic by experiment.

Two specific process examples presented below.

Process example 1: extruding glutinous millet

Glutinous millet is also known as broomcorn millet, broom corn millet.About 2 millimeters of particle diameter, bulk density 0.9 is accumulated, dilated product is for convenience of congee.

Using the continuous swelling device of the granule state food material of the utility model embodiment, structural reference Fig. 1 or Fig. 2 And foregoing teachings, major parameter are as follows:

Design yield: 10Kg/h.

Blower 1: power 1100W, wind pressure 1000Pa, 2000 cubic meters of flow/h (production of Taizhou of Zhejiang Yin Niu blower factory, type Number: HY1.1KW).

Air heater 2:10Kw.(the prosperous Commercial Machinery Plant of Beijing member, KJ-4000)

5 bore of feed zone: 160mmx160mm.

Cyclone separator 7:D600xH1000 (the prosperous Commercial Machinery Plant of Beijing member, SKL-600).

Temperature and humidity instrument 3: temperature and humidity control instrument (Yuyao the Changjiang river electrical apparatus factory, XMT-9007-8), set temperature 240 is Celsius Degree, humidity 40%.

Roller mill 10: adjustable extent 0-20 millimeters of roll seam, roller diameter 100, power 750W, Kaifeng Mei Ling business opportunity factory are raw It produces, model JYN-GYJ-100C.

6 form of feeder: vibration feeder (the prosperous Commercial Machinery Plant of Beijing member, LHC-100).

Operating process: glutinous millet elutriation is dried, until moisture content is 15%.Start blower 1 and air heater 2, control system Temperature and humidity to setting value, shaken feeder 6 and glutinous millet continuously put into feed zone 5, the glutinous millet after extruding is by cyclone separator 7 Lower end airlock 8 is continuously discharged.The regulating valve 9 for manipulating 7 upper end of cyclone separator makes part hot wind be admitted to the realization of blower 1 and follows Ring.

Between extruding glutinous millet soon reaches the roll of roller mill 10 from the discharge of the discharge of materials mouth of cyclone separator 7, between roll 10 millimeters of gap, collect the extruding glutinous millet directly passed through from roll seam.

The accumulation bulk density 0.45 of extruding glutinous millet, handling through rolling is in slightly flat-shaped particle.

It takes 100 grams of extruding glutinous millet to be put into bowl, 300 grams of 89 degrees Celsius of hot water is added to brew, standing is tasted after five minutes, mouthfeel It is fragrant glutinous, it is close with homely glutinous millet gruel.

Process example 2: extrusion forming reproduced rice extruding

Extrusion forming reproduced rice is cured through screw extruder and is granulated using rice meal as raw material.Particle is close to the milli of diameter 2.2 Rice, the cylindrical body that 7 millimeters of length.Accumulate bulk density 0.8.Its dilated product is for convenience of rice.

Equipment and its parameter are identical as process example 1, but epidemic disaster is set are as follows: and 260 degrees Celsius of temperature, humidity 46%； 6 form of feeder is fluidized bed；1.7 millimeters of the roll seam of roller mill 10, roll rotational speed 3000rpm.

Operating process: the reconstruction rice grain that extrusion granulation obtains, moisture content about 25%, through being dried, moisture content is to be reduced to 16%.Material is preheated to 110 degrees Celsius by fluidized bed, continuously puts into feed zone 5 later, the reproduced rice after extruding is by whirlwind point Airlock 8 from 7 lower end of device is continuously discharged, through the roll seam for passing through roller mill 10.Extruding reproduced rice after collecting extruding, Accumulate bulk density 0.5.

It takes 100 grams of extruding reproduced rice to be put into bowl, 150 grams of 89 degrees Celsius of hot water is added to brew, standing is tasted after five minutes, mouth It is sliding to feel bullet, it is close with family's steamed rice.

Claims (10)

1. a kind of continuous swelling device suitable for granule state food material, which is characterized in that the device includes sequentially connecting Blower, air heater, feed zone and cyclone separator equipped with feeder；Wherein,

The air outlet of the blower is connected to the air inlet of air heater；

The both ends of the feed zone pass through the hot-blast outlet of pipeline and air heater and the material inlet of cyclone separator respectively Connection, and wedge-shaped air duct is formed, negative pressure region is formed when passing through hot wind, is additionally provided with feeding on the duct wall of the negative pressure region Mouthful, matched by hopper and feeder；

The cyclone separator has material outlet and hot-blast outlet and is able to achieve material to be separated with hot wind.

2. the continuous swelling device according to claim 1 suitable for granule state food material, which is characterized in that the sky It is additionally provided with temperature and humidity monitor element in connecting pipe between hot-air heater and feed zone, can show and monitor and add from air Hot device is sent out and enters the hot blast temperature and humidity of feed zone.

3. the continuous swelling device according to claim 1 suitable for granule state food material, which is characterized in that described to feed Glassware is selected from shocking feeder, screw feeder or belt feeder with the pre- heat function of material.

4. the continuous swelling device according to claim 3 suitable for granule state food material, which is characterized in that described Feeder includes microwave tunnel formula feeder or fluidized bed feeder.

5. the continuous swelling device according to claim 1 suitable for granule state food material, which is characterized in that the wind Machine is centrifugal fan.

6. the continuous swelling device according to claim 5 suitable for granule state food material, which is characterized in that the wind Machine is the centrifugal fan that wind pressure is greater than 500Pa.

7. the continuous swelling device according to claim 1 suitable for granule state food material, which is characterized in that further include There is roller sheet mechanism, there are at least two rolls that can be rotated towards each other and roll seam is adjustable, the roller sheet mechanism is set to whirlwind At separator material outlet, rolling processing can be carried out to the puffed material from cyclone separator material outlet.

8. the continuous swelling device according to claim 1-7 suitable for granule state food material, feature exist In the hot-blast outlet of the cyclone separator is connected with the air inlet of the blower, and is provided with volume damper.

9. the continuous swelling device according to claim 1-7 suitable for granule state food material, feature exist In the food material is natural grain particle or reconstructed particle shape food material.

10. the continuous swelling device according to claim 8 suitable for granule state food material, which is characterized in that described Food material is natural grain particle or reconstructed particle shape food material.