CN200981003Y

CN200981003Y - Wet type grinding machine

Info

Publication number: CN200981003Y
Application number: CN 200620133178
Authority: CN
Inventors: 奥古斯特·伦茨; 贝恩德·坎特尔贝格
Original assignee: HOFFMAN CO Ltd
Current assignee: GEA Brewery Systems GmbH
Priority date: 2006-09-01
Filing date: 2006-09-01
Publication date: 2007-11-28
Anticipated expiration: 2016-09-01

Abstract

The utility model relates to a wet grinder (1) for wet grinding brewing malts (2) and comprises a softening mechanism (6) in which brewing malts (2) can be water softened, and a roll grinding arrangement comprising at least two rollers (9, 10), wherein the two rollers are capable of being driven and forming a gap (13), and the softened brewing malts (2) are rolled between the two rollers by the drive of the two rollers (9, 10). The set value of the width of the gap (13) between the two rollers (9, 10) is smaller than 0.3mm, and the two rollers (9, 10) are driven at the same rotary speed.

Description

The wet type grinding mill

Technical field

The utility model relates to a kind of brewing equipment, relates more specifically to brewageing the grinding mill that Fructus Hordei Germinatus is milled.

Background technology

In order to produce beer, producing mash from Fructus Hordei Germinatus is to brewage one of process step basic in the flow process.When producing mash, fermenting enzyme must can be near the component substances of Fructus Hordei Germinatus, with its degraded.For this reason, Fructus Hordei Germinatus must be pulverized before producing mash.Be known that and use so-called dry type grinding mill that Fructus Hordei Germinatus is pulverized, Fructus Hordei Germinatus is pulverized by suitable roller therein.As an alternative, today, increasing wet type grinding mill was come into operation, and Fructus Hordei Germinatus is before pulverizing, just by having added water treatment therein.By adding water, Fructus Hordei Germinatus was softened before milling, and grain husk absorbs moisture and therefore becomes and have elasticity.By this method, wet type is milled and can be reduced or avoid grain husk in the damage of carrying out occurring when dry type is milled more or less, makes the filtering feature of grain husk in follow-up clarification flow process be optimized.

Mill differently with dry type, Fructus Hordei Germinatus is not only simply pulverized when being milled by wet type, and the Fructus Hordei Germinatus composition will be extruded from grain husk.In order to finish this task, known wet type grinding mill is provided with the mutual counter-rotational milling roller of paired setting.Milling roller is so supporting in the grinding mill of reality, promptly makes to form a gap between it.Malted cereal can be carried by this gap, and the Fructus Hordei Germinatus composition is extruded from grain husk at this moment.

In known wet type grinding mill, gap width is provided with the next restriction, as at professional book " brewageing technology " VEBBerlin with the malt workman, the B. version, 1998, in 21 pages the above, milling roller is to the roller gap adjustment with very little 0.45mm.And, in 1992, the seven editions, indicate that the suitable roller spacing between the roller is 0.35 to 0.4mm in professional book Narziss " brewery, the preparation technique of brewer's wort " Enke publishing house.

The disappearance of known wet type grinding mill is that gap width is provided with lower limit.Consider the different technologies characteristic of brewageing flow process, with respect to the present gap width between known 0.35 to 0.45mm, littler width is very beneficial for obtaining more output object.Yet, use relief width to set width and show less than the test that the wet type grinding mill of 0.35mm carries out, by reducing the mode of gap width, the result that mills and the quality result that uses the brewer's wort that this Fructus Hordei Germinatus produces be variation.

Summary of the invention

Therefore, task of the present utility model is, a kind of wet type grinding mill is provided, and uses its result that can mill to wet type and produce the technical characteristic that can reach in the flow process at brewer's wort to be optimized.

When being investigated, above-mentioned problem determines that by reducing gap width, the power consumption of the simple motor that is provided with usually in order to drive milling roller significantly increases.This power that significantly increases causes drive motors to fluctuate near predefined common rated value at the rotating speed that produces on the milling roller, perhaps and have deviation between the rated value.Gap width is selected more for a short time, and this fluctuation or deviation are just big more.The actual speed of milling roller departs from predefined rated value or swings near rated value, and itself has little significance.Yet,, no longer driven by accurately identical predefined rotating speed because independent mutually deviation or the fluctuation that occurs on two milling rollers makes milling roller under its effect.This speed discrepancy causes producing certain slippage between milling roller, it causes occurring the not enough result that mills in the wet type of using little gap width is milled.Because malted cereal is imposed severe pressure by very little gap width in wet type is milled, so the slippage of the not expecting motion of this milling roller will cause grain husk is caused a undesirable damage.

The degree of injury of grain husk is along with the index that is reduced in gap rises, and up to the present, still infeasible less than the gap width of 0.35mm.According to the utility model, when wet type was milled, milling roller used the gap width less than 0.3mm, drove with accurately identical rotating speed.Can eliminate the slippage that between milling roller, occurs causing grain husk to sustain damage and move by guaranteeing this accurate identical rotating speed.Simultaneously, carry out the Fructus Hordei Germinatus that wet type is milled according to the utility model, can realize that extraordinary mash produces the result aspect obtaining at material by using.

In order to make gap width accurate consistent as far as possible with predefined rated value, should in the wet type grinding mill, be provided with the sensor that to measure real gap width, the feasible actual value that can check gap width at any time, and where necessary, itself and predefined nominal clearance width are complementary.Gap width can change in certain boundary along the length axes in gap, this gap width can be produced by the deviation of roll body and desirable circumferential shapes along the deviation of the length axes in gap, for example, the deviation that causes by the bending in the centre of in various degree wearing and tearing or roll body.Therefore, when gap width can be measured several positions of major axis along it in the gap, and when measuring numerical computations and go out a mean value according to these, advantageous particularly.Therefore, this mean value can be used as actual gap width and is imported in the control system of equipment.In order to realize that milling roller is driven with rotating speed accurately, various structure design principles all are feasible.According to first kind of embodiment, two milling rollers only use a motor to drive jointly.For to drive two milling rollers with rotating speed accurately, be provided with a transfer driver, make the actuation movement of from motor, exporting be transferred on two milling rollers with identical rotating speed.

This only uses a special form of implementation of the drive scheme of a drive motors to be, when drive motors directly drives a milling roller, actuation movement by a transfer driver when this milling roller is delivered to second milling roller, the intensity of this transfer driver should design highly as far as possible, so that do not produce speed discrepancy.

The drive scheme alternative according to another kind, two milling roller each free one drive motors drivings that carry respectively, the drive motors of drive motors for controlling, for example servomotor, make two drive motors to use a common rated value to control accurately by a control device

In addition, by using this advanced servomotor, can realize specific exercise performance by preestablishing of relevant control software.For example, when driving milling roller, can realize the curve movement relevant with angle-speed and/or acceleration.

Description of drawings

Different form of implementation of the present utility model schematically illustrates in the accompanying drawings, and further sets forth for example hereinafter.As scheming:

Fig. 1 is the cross sectional view that has the wet type grinding mill of two milling rollers.

Fig. 2 is the first kind of embodiment that is used for driving the milling roller in the wet type grinding mill of Fig. 1.

Fig. 3 is the second kind of embodiment that is used for driving the milling roller in the wet type grinding mill of Fig. 1.

The specific embodiment

In Fig. 1, shown a kind of mill cross section of the wet type grinding mill of brewageing Fructus Hordei Germinatus (2) of wet type that is used for.Dry brewages Fructus Hordei Germinatus 2a by a pipeline 3, not have the storage bin of demonstration to be transported to the Fructus Hordei Germinatus storehouse 4 of wet type grinding mill from a figure.To brewage Fructus Hordei Germinatus 2a by a feed roller 5 and be transported to a softening storehouse 6 that Fructus Hordei Germinatus 2a softens of brewageing that is used for drying.In softening storehouse 6, that flows through brewages Fructus Hordei Germinatus 2a by the continuous mixing of water, so that the Fructus Hordei Germinatus particle absorbs moisture and is softened with this.

By another feed roller 7, the Fructus Hordei Germinatus 2b that brewages after softening is transported in the body 8 of milling.In the body 8 of milling, two

milling rollers

9 and 10 support in rotatable mode, and can be by a mutual reverse drive of the drive unit that does not mark in Fig. 1.By the reverse drive of two

milling rollers

9 and 10, the Fructus Hordei Germinatus 2b that brewages after softening is rolled and is pulverized by two

milling rollers

9 and 10 gaps that constitute.The Fructus Hordei Germinatus 2c that brewages after the pulverizing then falls into the Fructus Hordei Germinatus pulp bin 11 that the bottom is provided with, and by a mash pipeline 12, is pumped in the mash container that does not mark in the drawings by the Fructus Hordei Germinatus stock pump that does not mark among the figure.

In Fig. 2 illustrative the first kind of drive scheme that

milling roller

9 and 10 is driven according to the utility model.In the vertical view of two

milling rollers

9 and 10, can recognize the gap 13 that in the middle of roller, constitutes, brewage Fructus Hordei Germinatus and be transferred by this gap.The width in gap 13 is set less than 0.3mm.In this drive scheme,

milling roller

9 and 10 uses the drive motors that can control 14 and 15 to drive respectively separately, and for example, this motor can be for having the drive motors of corner control.Two drive motors that can control 14 link to each other with a control device that does not mark in the drawings with 15, and use a common rated speed to control, and speed discrepancy does not appear in feasible driving to

milling roller

9 and 10.

In Fig. 3 illustrative second type the alternative drive scheme that

milling roller

9 and 10 is driven.For

milling roller

9 and 10 is driven, only be provided with a drive motors 16.Must consider this motor that two

milling rollers

9 and 10 are driven and determine that it has enough power.Drive motors 16 directly drives milling roller 9.In order accurately identical rotating speed to be sent to milling roller 10 by milling roller 9, be provided with a transfer driver, it is made of the spur gear 17 of paired engagement basically.All spur gears 17 all have identical diameter, identical rotating speed can be sent to milling roller 10 accurately from milling roller 9 with this.In addition, by the specification of corresponding definite spur gear 17, can guarantee actuation movement is sent to the transport process of milling roller 10 from milling roller 9, not produce speed discrepancy.

Certainly, except at Fig. 2 and drive scheme illustrated in fig. 3, a lot of other types, can guarantee to the milling roller 9 of paired setting when 10 drive rotating speed accurately identical drive scheme also be feasible.

Claims

1. one kind is carried out the wet type grinding mill (1) that wet type is milled to brewageing Fructus Hordei Germinatus (2), has:

Softening mechanism (6), brewageing Fructus Hordei Germinatus (2) can be therein by water softening; With

The roll-type milling device, it has two milling rollers (9,10) at least, and described two milling rollers can be driven and constitute gap (13), and the driving that Fructus Hordei Germinatus (2) can pass through milling roller (9,10) of brewageing after softening is rolled between milling roller,

It is characterized in that,

Gap (13) width setting value between the milling roller (9,10) is less than 0.3mm, and milling roller (9,10) uses identical rotating speed to drive.

2. wet type grinding mill as claimed in claim 1,

It is characterized in that, also comprise:

At least one sensor, described sensor is used for the measurement clearance width.

3. wet type grinding mill as claimed in claim 1 or 2,

It is characterized in that, also comprise:

Drive motors (16), two milling rollers (9,10) drive by this drive motors (16);

Transfer driver (17), its actuation movement with drive motors (16) is delivered to two milling rollers (9,10) with identical rotating speed.

4. wet type grinding mill as claimed in claim 3,

It is characterized in that,

Drive motors (16) directly drives a milling roller (9), by transfer driver (17) actuation movement is transferred to second milling roller (10) from the milling roller (9) of direct driving.

5. wet type grinding mill as claimed in claim 1 or 2,

It is characterized in that, also comprise:

The drive motors that can control (14,15), two milling rollers (9,10) use a drive motors (14,15) to drive separately respectively;

Control device, its rotating speed with two milling rollers (9,10) controls to an identical rated value.