CN101375734A

CN101375734A - Equipment and technique for puffing foodstuff

Info

Publication number: CN101375734A
Application number: CNA2008102164176A
Authority: CN
Inventors: 杨小静; 余国才
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-28
Filing date: 2008-09-28
Publication date: 2009-03-04

Abstract

The invention discloses equipment and a technology for food puffing. The equipment comprises a main electric motor and a puffing formation cavity, wherein, the puffing formation cavity is composed of a screw, a sleeve and a die head, the screw is arranged inside the sleeve, the die head is fixedly connected with one end of the sleeve, and double die holes are formed on the die head. The invention can achieve the purpose of puffing rice at food grade. According to the invention, the requirement for moisture content of rice is relatively low, and ingredients are not crushed in advance unnecessarily, so that the production efficiency is greatly improved. As the invention improves the adaptability of the prior art, the puffing rate increases, and a better puffing effect is achieved. Puffed rice produced by adopting the technology has the advantage that a heavy decline in the volume weight of powder made from the puffed rice is brought about. Therefore, according to the fact that the smaller volume weight can enable the rice powder to be more soluble and also can enable the taste to be better, the powder made from the puffed rice is taken as the main ingredient for rice powder for babies to ensure that the rice powder can be easily digested by babies and is good in taste.

Description

Expanding food equipment and bulking process thereof

[technical field]

The present invention relates to a kind of food processing technology and process equipment thereof.

[background technology]

In the prior art, bulking machine is generally the screw rod bulking machine, is made up of feeding system, extrusion system, heating system, outstanding cutting system, transmission system and control system etc.Utilize the extruding of the not equidistant non-standard spiral of screw rod to advance, gas in the material is discharged from, and filled by material rapidly, material is subjected to the shearing force effect and produces backflow, make the pressure in the sleeve increase to 3-8Mpa, along with screw rod fully mixes material with friction between sleeve, extruding, heating, gummed, gelatinization and produce tissue and change, original structure is damaged, mechanical energy is converted into heat energy by the rubbing action of material in sleeve simultaneously, material is become have the gelatinized of flowing property, material is extruded to nib when outlet pressure and becomes normal pressure by high pressure moment, become normal temperature by high temperature moment, causing moisture gasification rapidly from institutional framework promptly, make the countless microcellular structures of its inner formation, is expanded shaping through pelletizing.

Expanded generation starch gelatinization, proteinaceous tissueization, particle bulking, characteristics such as feed sterilization are saved nutriment from damage, reduce water pollution, suitable especially feed; Help animal digestion and absorb, so some cheap raw materials can replace valuable raw material through expanding treatments, and not influence quality of the fodder, reduce cost like this, the exploitation feed resource has been played important function.Bulking machine as required can expanded full-fat bean, corn, millet, oil meal, animal waste, animal blood meal, feather meal and keeping rice bran fresh etc. add composition as animal feed, but puffed rice, corn, husked kaoliang are as food.

At present three types bulking machine is roughly arranged on the market, and mostly be used for expanded pellet diet.

It is powdery that feed extruder requires expanded raw material, and material will carry out moisteningly earlier, and water content is approximately 18% loose material, and material forms expanded in screw rod swivel nut chamber under the HTHP high shear forces.Its puff unit weight after crushed all more than 300g/L, is used for the requirement that food production does not reach dilated food far away.

Dry type quenching and tempering type bulking machine: it is moistening requiring expanded raw material, and only raw material need not be moistening in advance, but injects steam in the blanking process simultaneously, adjusts the raw pine softness, and it is expanded to be beneficial to material.Its puff unit weight does not after crushed still reach the requirement of desirable dilated food more than 200g/L.

Dry extruder: rice is directly injected bulking machine become dilated food.This kind bulking machine is subjected to the variation of screw sleeve mismachining tolerance own, the influence of raw material rice quality, the expansion effect instability, and puffing process is difficult to control, and the puff quality is very unstable; Expanded yielding poorly simultaneously, maximum production capacity 90Kg/h does not fit into large-scale production.

Another kind of twin-screw Bulking Machine, its technology and feed extruder are slightly together.If want puffed rice, must pulverize rice earlier, adjusting could be expanded behind the moisture again, and production technology is complicated; Its single machine yield is 50-70Kg/h only; Unit weight after puff is pulverized is all greater than 300g/L, and it is expanded also very undesirable to do powdery.

[summary of the invention]

Main purpose of the present invention is: a kind of expansion effect is good, efficient is higher expanding food technology and equipment thereof are provided.

For achieving the above object, the present invention proposes a kind of expanding food equipment; Comprise main motor and expanded molding chamber, described expanded molding chamber comprises screw rod, sleeve and die head, and described screw rod is located in the described sleeve, and described die head and sleeve one end are affixed; The described screw rod of described main motor-driven; Described die head is provided with the bimodulus hole.

Above-mentioned expanding food equipment, the aperture of described nib are 4-6mm.

Above-mentioned expanding food equipment, described screw drive power 50-60kw.

Simultaneously, the present invention proposes a kind of expanding food technology of using above-mentioned expanding food equipment, comprise the steps: that charging, screw rod push, extrude expanded.

The expanding food technology of above-mentioned expanding food equipment before described feed step, also comprises the step of heating.The described temperature of heating is the 160-180 degree.

Bulking process of the present invention and equipment, mainly by changing the die head number of orifices into the bimodulus hole, can realize the food-grade of rice expanded, water content requirement to rice raw material is lower, expanded effect is not subjected to the influence of rice physicochemical characteristic, also need not pulverize raw material in advance, production technology is simple, so production efficiency increases substantially.

Owing to, expansion rate is improved, and expansion effect is better to the adaptive improvement of prior art; Can effectively control puffed degree, and puffed degree is stable, reaches below the 200g/L, meets the requirement of powdery dilated food puffed degree fully.

Through the puffed rice of technology of the present invention, its unit weight of Cheng Fenhou descends significantly, and as the primary raw material of consumption by infants ground rice, lighter unit weight can make the easier pasty state that reconstitutes into of ground rice, and mouthfeel is better; And unit weight when higher ground rice be difficult for reconstituting and easily conglomeration, mouthfeel is not good, influence is edible.

Bulking process of the present invention and equipment, the simple and easy realization of improvements over the prior art, cost is low; But can obtain the breakthrough of product quality and production efficiency.

The bulking process and the equipment of wood invention, expanded output height reaches more than the 300Kg/h, can adapt to large-scale production.

[description of drawings]

The bulking equipment structural representation of Fig. 1 embodiment of the invention;

The die head schematic diagram of Fig. 2 embodiment of the invention.

[specific embodiment]

Also the present invention is described in further detail in conjunction with the accompanying drawings below by specific embodiment.

Embodiment one:

This routine bulking machine main frame comprises that frame, motor, expanded molding chamber, granulating mechanism and charging control device etc. partly form.Please refer to shown in Figure 1ly, mainly comprise belt pulley 1, bearing 2, electrical control cubicles 3, main motor 4, charging control device 5, rack 6, screw rod 7, sleeve 8, Far-infrared Heating circle 9, resistance template 10, die head 11, frame 12 and pelletizing motor 13.

Main motor 4 transmissions drive main shaft and rotate, and screw rod 7 connects with main shaft, rotates in sleeve.The outer infrared ray heating circle 9 of sleeve can pass through automatic temperature-adjusting controller and temperature sensor, automatically adjusts by predetermined temperature and controls heating, and heating-up temperature is chosen in 160 degree.The pelletizing motor rotates grain-cutter by shaft coupling.Can make up size and the shape that changes finished particle with the die head of different apertures and hole count by the cutting knife of varying number.The adjustable gaps joint of cutting knife and die head.

Before the start adjustment is arrived given temperature position, die head place temperature is 120～140 ℃.Sleeve is carried out preheating heats, reach to just stopping heating behind the fixed temperature voluntarily, start this moment, Deng machine run normal after, begin to add and add regular burden(ing) after drawing material (3～5 jin of moisture content are 50% raw material), raw material rice water content is about 14%, is directly delivered into by charging aperture by charging control device 5, and charging control device 5 control raw materials are with the even charging of speed of per minute 6Kg.The technical performance parameter is: screw drive power 50kw, nib specification Φ 4mm.

Because the size and the quantity of die head nib, directly determined the pressure in the sleeve of expanded molding chamber, the expansion effect of decision discharging is in this example, at the physicochemical characteristic of raw material rice, especially die head is improved, as shown in Figure 2, die head nib specification is Φ 4mm, and number of orifices changes bimodulus hole 111,112 into by original a plurality of nibs, when screw speed reached certain rotating speed, the cover cylinder pressure can reach certain value; By the coupling of temperature, pressure (rotating speed), the bulking equipment that this is routine, can directly the raw material rice be carried out expanded, and need not pulverize in advance, operation such as oven dry, improved production efficiency.Through this routine equipment and the expanded ground rice of technology, its unit weight is reduced to below the 200g/L significantly, easily reconstitute, and not conglomeration, mouthfeel is good.

Embodiment two: mainly is with the difference of embodiment one, and in this example, screw drive power 55kw, bimodulus hole gauge lattice Φ 5mm.Heating-up temperature is chosen in 170 degree.

Embodiment three:

Mainly be with the difference of embodiment one, in this example, screw drive power 60kw, bimodulus hole gauge lattice Φ 6mm; Heating-up temperature is chosen in 180 degree; Charging control device 5 control raw materials are with the even charging of speed of per minute 7Kg.

Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.

Claims

1. expanding food equipment; Comprise main motor and expanded molding chamber, described expanded molding chamber comprises screw rod, sleeve and die head, and described screw rod is located in the described sleeve, and described die head and sleeve one end are affixed; The described screw rod of described main motor-driven; It is characterized in that: described die head is provided with the bimodulus hole.

2. expanding food equipment as claimed in claim 1 is characterized in that: the aperture of described nib is 4-6mm.

3. expanding food equipment as claimed in claim 2 is characterized in that: described screw drive power 50-60kw.

4. expanding food equipment as claimed in claim 2 is characterized in that: also comprise the charging control device, be installed on the charging aperture in described expanded molding chamber, be used to control charging rate.

5. the expanding food technology of the expanding food equipment described in application such as the claim 1-4, comprise the steps: charging, screw rod extruding, extrude expanded.

6. the expanding food technology of expanding food equipment as claimed in claim 5 is characterized in that: before described feed step, also comprise the step of heating.

7. the expanding food technology of expanding food equipment as claimed in claim 6 is characterized in that: the described temperature of heating is the 160-180 degree.