CN1042952C - Process and equipment for producing rice bran oil - Google Patents

Abstract

The present invention relates to a preparation method for vegetable oil and a device thereof, particularly to a preparation method for rice oil and a device thereof. The present invention is characterized in that materials are processed by extrusion and puffing, and the materials are heated to 120 to 130 DEG C in the process; the materials by puffing are processed by extraction and oil manufacture in time. The device of the present invention mainly comprises an expansion machine, an oil press and a necessary conveying apparatus. The present invention with a simplified and effective technology overcomes the shortage of the prior art, and has the advantages of little equipment investment, low energy consumption, high oil yield, good quality of crude oil, etc.

Description

The preparation apparatus of Rice pollard oil

The present invention relates to the preparation method and the equipment of a vegetable oil, particularly Rice pollard oil.

In the prior art; the technology of producing Rice pollard oil with milling process is: cake → squeezing is fried → is done in rice bran → heating → steaming; promptly earlier rice bran is delivered in the steamer and heated; steamer-as multilayer is arranged; in establish agitator; be connected with steam in the steamer interlayer; rice bran is heating successively from top to bottom; rice bran after the heating is delivered in the toaster by screw feeder; this toaster interlayer is interior except that being connected with steam; usually also directly spray into steam rice bran is steamed stir-fry, make rice bran in cylinder, continue to obtain heating, reach 110 ℃ up to temperature; moisture content is 7.5～8%; but just discharging and be used as the cake machine and after preformer is shaped into cake with material base, reinstalls multiple press and be pressed into press for extracting juice again obtains Rice pollard oil (crude oil) and chaff cake then.Its weak point is; Complex process, occupation area of equipment is big, facility investment and energy consumption height, labor strength are big.

In Chinese patent application 86105295, a kind of treatment process and equipment of rice bran is disclosed.Its technical scheme can reduce: by extruding-puffing the lipase in the rice bran is lost activity, suppressing the too fast rising of rice bran acid value, thereby prolongs the storage period of rice bran rice bran, until be stored in oil expression or by livestock edible till.Its weak point has two: one, and the heat energy that is produced in extruding one puffing process does not obtain utilizing; Its two, send to oil expression (known method is the pre-treatment that puffing is extracted oil as lixiviation process) if concentrate, will be difficult to avoid the cost that increases by transportation.

For this reason, first purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, and provide a kind of preparation method and equipment of Rice pollard oil, it not only can be with simplification effectively processing method and less equipment investment and energy consumption finish the processing of producing of Rice pollard oil, and can also reduce occupation area of equipment and labor strength.

Second purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, and a kind of preparation method and equipment of Rice pollard oil are provided, and it can make full use of the extruding one expanded heat energy that produces, and can not increase tooling cost because of transportation.

The technical scheme that realizes the object of the invention is,

A kind of preparation method of Rice pollard oil is characterized in that comprising:

A. material is pushed-puffing, in this process, material is heated to 120～130 ℃;

B. the material to expanded mistake in time squeezes the processing of system oil.

The preparation apparatus of realizing aforesaid method comprises:

A. extruding puffing mechanism and the oil expression mechanism;

B. e Foerderanlage that transmits material to the feed end of extruding puffing mechanism;

C. the material that expanded mechanism discharge end is discharged is sent to the e Foerderanlage that section's end advances in oil expression mechanism.

The described method and apparatus of the technical program has the following advantages:

1, since the rice bran that extruding puffing is crossed in time with the milling process processing of extracting oil, this has not only suppressed the rising of rice bran acid value, and utilized heat energy in extruding-puffing process fully (in the puffing process, make it reach 120～130 ℃ by machinery to extruding, shearing and the friction of rice bran), promptly allow this can satisfy heat that the people presses condition and maximize the retention and utilize, avoided before squeezing, also needing heat rice bran;

2, can reduce facility investment and occupation area of equipment owing on an equipment, can finish pre-treatment and crude oil processing, the event of rice bran continuously, reduce labor strength;

3, because the existing in prior technology deficiency, present a large amount of meters factories, especially day output is in small-sized meter factory below 50 tons, all be difficult to be provided with a Rice pollard oil job shop that matches with rice processing, often make rice bran can not get timely processing because of the delay in storage or the transportation, so that the acid value of rice bran increases, and has influenced the processing quality and the oil yield of Rice pollard oil, also increased simultaneously by concentrating the required transportation cost of processing.The relation of rice bran freshness and oil yield and quality of crude oil can see table:

25 ℃ of shelf-times	Rail presses crude oil		Normal squeezing oil yield (%)	Crude oil refining yield (%)
					Acid value	Smell
	The same day	＜10					Normally	12～14.5	84～91
3～5 days			15～18	The rice bran flavor	10～11	72.8～76
	7～10 days	20～25					Rice bran is highly seasoned	8～10	63～70
15 days			28～30	Rice bran distinguishes the flavor of dense 6～8		56～58.8

Because the present invention can make fresh rice bran just in time be processed from forming beginning, so be not difficult to find out by last table, the technical program has advantages such as oil yield height, quality of crude oil are good.And described equipment is changeable on specification, helps forming series, and each meter factory can select for use corresponding apparatus to come directly and the rice process mating according to the industrial scale of oneself.

The drawing of accompanying drawing is described as follows:

Fig. 1 is the sectional view of equipment of the present invention.

Fig. 2 is a kind of type of drive synoptic diagram of e Foerderanlage.

The invention will be further described below with reference to accompanying drawing:

With reference to Fig. 1, Fig. 2, equipment of the present invention comprises: extruding puffing mechanism [7] and screw oil expeller structure [16].On layout, the former can be positioned on the latter, also the two can be arranged side by side.

A top or a side in expanded mechanism [7] are provided with an e Foerderanlage [3], and the feed end hopper [4] of this device can carry the device of fresh rice bran to join with the rice job shop, and its other end is connected with the feed end [5] of expanded mechanism [7].Between the feed end [13] of the discharge end [9] of expanded mechanism [7] and the mechanism [16] of extracting oil, be provided with the e Foerderanlage [11] that a material with expanded mistake is sent to oil expression mechanism [16].Described e Foerderanlage [3,11], can be that tubular passage (also claims the nature charging, can be used for bantam), but preferably adopt the spiral screw feeder [2,12] that drives by motor [1,10] (speed governing or reducing motor), this will help even feeding, and be full of material and carry out precompressed at feed end.

Two e Foerderanlages [3,11] also can drive (see figure 2) by same motor [1], it is the spiral screw conveyor shaft [24] that motor [1] drives running, extend to an end of the spiral screw feeder [12] between expanded mechanism [7] and the oil expression mechanism [16] from the end of e Foerderanlage [3], and drive spiral screw conveyor shaft [27] and spiral screw feeder [12] running thereof by a pair of intermeshing cone gear [25,26] (end of two spiral screw conveyor shafts respectively installs a cone gear).

Described expanded mechanism [7] comprising: be packed in the sleeve [18] on the body [20], be provided with screw rod [6] in the sleeve [18], motor [22] rotates by transmission mechanism [23] drive screw [6].Discharge end [9] in sleeve [18] is provided with shaping mould [8].(design selection of expanded mechanism [7] can be consulted " grain and fodder industry " magazine, the 18th～23 page of 1989 the 4th phase, " the expanded and equipment of cereal ").During work, the screw rod that rotates [6] (displacement or diameter progressive screw) makes material be squeezed, shear and rub, thereby mechanical energy is converted into the heat energy of material and reaches 120～130 ℃, subsequently under the continuous action of pressure, material is through several aperture ejections of shaping mould [8], be the certain intensity of expanded one-tenth tool, moisture content less than 9% loose small-particle, when the temperature of charge of these expanded mistakes also has little time to reduce to the press for extracting juice temperature when following, described e Foerderanlage [11] is just sent into oil expression mechanism [16] with being about to it.This oil expression mechanism [16] comprising: press cage [17], press be provided with in the cage [17] press spiral shell [14], motor [22] by transmission mechanism [21] drive press spiral shell [14] rotate (design selection of oil expression mechanism [16] can consult China Machine Press in November nineteen ninety publish " Agricultural Machinery Design handbook chapter 15 the 5th saves " oil manufacture machine " P461～470).During work, the press for extracting juice spiral shell [14] that is rotating advances material in pressing thorax [15] continuously, because going up lead of screw, shortens gradually or height of thread modified line gradually on press for extracting juice spiral shell [14], the spatial volume of pressing in the thorax [15] is just dwindled gradually, thereby produce the squeezing effect, oil is extruded from press cage [17] slit, and residue squeezes into cake, discharges from discharge port [19].

Claims (2)

1, a kind of preparation apparatus of Rice pollard oil, comprise extruding puffing mechanism [7] and oil expression mechanism [16], it is characterized in that: between the feed end [13] of the discharge end [9] of expanded mechanism [7] and the mechanism [16] of extracting oil, be provided with the e Foerderanlage [11] that a material with expanded mistake is sent to oil expression mechanism [16], the discharge end [9] of the feed end of e Foerderanlage [11] and expanded mechanism links, the discharge end of e Foerderanlage [11] links with the feed end [13] of oil expression mechanism [16], and the feed end [16] in expanded mechanism [7] is provided with the e Foerderanlage [3] that a feed end to expanded mechanism [7] [5] transmits material.

2, equipment according to claim 1 is characterized in that: described e Foerderanlage [3,11] is a spiral screw feeder [2,12].

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