JP2017087179A - Milling method of wheat, wheat grinding rate measuring device and wheat milling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a milling method of wheat, a wheat grinding rate measuring device and a wheat milling device which reduces a load for adjustment of a roller gap of a roller type grinding machine used on a milling process of wheat and performs the adjustment of the roller gap at a high accuracy.SOLUTION: A milling method of wheat includes: a process of measuring a flow rate of a stock flowing into a roller type milling machine 8 with a first flow-rate measuring device 10 which is provided with a gap adjusting part for adjusting a gap between a pair of roller and roller of a roller type milling machine 8 and is disposed on an upstream; a process of classifying the stock into a plurality of sections with a shifter disposed on a downstream of the roller type milling machine 8; a process of measuring a flow rate of a specified section flowing out of the shifter with a second flow rate measuring device 22; a process of gaining the flow rate measured on the flow rate measuring process, on a control part; a process in which the control part outputs a control signal for the gap adjusting part such that a rate of gained flow rates gets to a predetermined value; and an adjustment process in which the gap adjusting part adjusts the gap between the pair of rollers based on a control signal.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wheat milling method, a wheat grinding rate measuring apparatus, and a wheat milling apparatus.

  In a grinding process, which is a process of grinding wheat in a milling process in which wheat is milled to produce wheat flour, the wheat is pulverized by a roll type pulverizer. In the pulverization by this roll-type pulverizer, it is required to maintain the pulverization rate of wheat and crushed wheat stock at a predetermined constant value. In particular, the pulverization rate by the 1B roll type pulverizer that pulverizes wheat first is a significant production control item because it greatly affects the quality of the flour produced. A roll type pulverizer for pulverizing stock is disclosed in Patent Document 1 and the like.

  Therefore, conventionally, an operator collects the pulverized stock by a roll-type pulverizer, sieving the stock into coarse powder and fine powder to obtain the pulverization rate, and based on this pulverization rate, the stock pulverization rate is predetermined. The roll gap of the roll type pulverizer was manually adjusted so as to be a constant value.

Special table 2002-500084 gazette

  However, when the worker collects the crushed stock, obtains the pulverization rate by sieving, and manually adjusts the roll gap of the roll-type pulverizer based on this pulverization rate, the workload of the worker is large. Therefore, it is difficult to frequently adjust the roll gap. In addition, there is a problem that the adjustment accuracy of the roll gap varies among workers.

  An object of the present invention is to reduce the load of adjusting the roll gap of a roll-type crusher used in a wheat milling process, and to make a roll gap adjustment with high accuracy, and a wheat grinding rate measurement It is to provide a device and wheat flour milling device.

  The wheat milling method of the present invention is a wheat milling method in which wheat is milled to produce wheat flour, upstream of a roll type pulverizer comprising a pair of pulverizing rolls and a gap adjusting unit for adjusting a gap between the pair of pulverizing rolls. A first flow rate measuring step for measuring the flow rate of the stock flowing into the roll type pulverizer by an installed first flow rate measuring device, and a pulverizer by the roll type pulverizer by a shifter installed downstream of the roll type pulverizer Classifying the classified stock into a plurality of sections according to the granularity of the stock, a second flow rate measuring step of measuring a flow rate of a specific section of the stock flowing out of the shifter with a second flow rate measuring device, A flow rate acquisition step of acquiring in the control unit the flow rate of the stock measured in the first flow rate measurement step and the second flow rate measurement step, and the flow rate acquisition step A control signal output step in which the control unit outputs a control signal to the gap adjustment unit, and the gap adjustment based on the control signal, so that the ratio of the flow rate of the stock acquired in the step becomes a predetermined value. And a gap adjusting step for adjusting a gap between the pair of grinding rolls from the section.

  The wheat milling method of the present invention is characterized in that the roll machine is a brake roll.

  The wheat milling method of the present invention is characterized in that the brake roll is a 1B roll.

  The wheat pulverization rate measuring device according to the present invention includes an input unit that inputs stock, a first flow rate measuring device that is disposed downstream of the input unit and that measures the flow rate of the stock input from the input unit, and the first A roll-type crusher that is arranged downstream of the flow rate measuring device and includes a pair of crushing rolls and a gap adjusting unit that adjusts a gap between the pair of crushing rolls; A shifter for classifying the stock installed downstream and pulverized by the roll-type pulverizer into a plurality of compartments according to the particle size of the stock, and measuring a flow rate of a specific compartment among the plurality of compartments classified by the shifter 2 flow rate measuring device, a calculation unit for calculating the pulverization rate of the stock flowing out from the shifter based on the measurement results in the first flow rate measuring device and the second flow rate measuring device, Characterized in that it comprises a display unit for displaying the grinding ratio calculated by the serial calculation unit.

  In the wheat grinding rate measuring apparatus according to the present invention, the roll machine is a brake roll.

  In the wheat grinding rate measuring apparatus according to the present invention, the brake roll is a 1B roll.

  The wheat flour mill of the present invention includes an input unit for supplying stock, a first flow rate measuring device that is disposed downstream of the input unit and that measures the flow rate of the stock input from the input unit, and the first flow rate measurement A roll-type crusher disposed downstream of the apparatus and provided with a pair of crushing rolls and a gap adjusting unit for adjusting a gap between the pair of crushing rolls, and crushing the charged stock; and downstream of the roll-type crusher A shifter for classifying the stock that has been installed and pulverized by the roll-type pulverizer into a plurality of compartments according to the particle size of the stock, and a second flow rate that measures a flow rate of a specific compartment among the plurality of compartments classified by the shifter A measuring device; and an input unit for inputting a target stock flow ratio that is a target value of a flow ratio of each section when the stock is classified into the plurality of sections by the shifter; And a control unit that controls the gap adjusting unit so that the stock flowing out of the shifter becomes the target stock flow rate ratio based on the measurement result in the flow rate measuring device and the second flow rate measuring device. To do.

  In the wheat flour mill of the present invention, the roll machine is a brake roll.

  In the wheat milling apparatus of the present invention, the brake roll is a 1B roll.

  ADVANTAGE OF THE INVENTION According to this invention, the milling method of wheat which can reduce the load of adjustment of the roll gap of the roll type grinder used in the flour milling process and can adjust the roll gap with high accuracy, and the wheat grinding rate measurement An apparatus and a wheat flour mill can be provided.

It is a figure which shows partially the wheat flour mill which concerns on embodiment. It is a figure which shows partially the system configuration | structure of the wheat flour mill which concerns on embodiment. It is a figure which shows the structure of the roll-type grinder of 1B which concerns on embodiment. It is a flowchart which shows the milling process in the wheat flour mill which concerns on embodiment.

  Hereinafter, wheat milling using the wheat milling apparatus according to the embodiment will be described with reference to the drawings. In wheat milling, wheat and pulverized wheat are referred to as stock.

  FIG. 1 is a diagram partially showing a wheat milling apparatus according to an embodiment. The wheat flour mill 2 includes an input unit 4 that inputs selected wheat. Downstream of the input unit 4, the wheat flow path supplied from the input unit 4 is connected to the 1B roll type grinder (in the process of milling wheat, the roll type comminution in the uppermost stream among a plurality of roll type grinders. Machine) The 1st flow-path switching part 6 which switches to the flow path of the 8 side and the flow path of the 1st flow measuring device 10 side which measures the input amount of wheat is arrange | positioned.

  FIG. 2 is a diagram illustrating a configuration of the 1B roll-type crusher 8 according to the embodiment. The roll type crusher 8 of 1B is a roll type crusher having a pair of sharpening rolls 8a and 8b in which teeth having a predetermined shape are formed on the roll surface. Further, a gap adjusting unit 9 is provided for adjusting the gap between the pair of rolls 8a and 8b based on a control signal from a control unit 30 (see FIG. 3) described later. The first flow rate measuring device 10 includes an impact line flow meter that applies falling powder to a detection plate and converts the force into a flow rate, and a hopper type flow rate that converts the weight of the powder charged into the hopper into a flow rate. A meter is used.

  A shifter 12 for classifying the stock into a plurality of compartments according to the grain size of the stock, which is a pulverized product of wheat crushed by the 1B roll pulverizer 8, is disposed downstream of the 1B roll pulverizer 8. In the shifter 12, four sieve frames (12a to 12d) are stacked, and a predetermined number of sieves are stretched on each sieve frame for each sieve frame. The stock is classified into a plurality of sections by circularly moving the sieve frames (12a to 12d) in a horizontal plane.

  Downstream of the shifter 12, the stock that has been screened by the sieve frame 12a and the excess stock is rolled into a 2B roll crusher (a roll crusher next to the 1B roll crusher 8 among a plurality of roll crushers). ) A second flow path switching unit 18 for switching between the flow path on the 20 side and the flow path on the second flow rate measuring device 22 side that measures the inflow amount of stock is disposed. Here, the roll type crusher 20 of 2B is a roll type crusher having a pair of sharpening rolls in which teeth of a predetermined shape are formed on the roll surface, like the roll type crusher 8 of 1B. As the second flow rate measuring device 22, an impact line flow meter, a hopper type flow meter, or the like is used similarly to the first flow rate measuring device 10.

  A shifter 24 for classifying the stock into a plurality of sections according to the particle size of the stock crushed by the 2B roll pulverizer 20 is disposed downstream of the 2B roll pulverizer 20. The shifter 24 has four sieve frames (24a to 24d) stacked like the shifter 12, and a predetermined number of sieves are stretched on each sieve frame for each sieve frame. The stock is classified into a plurality of sections by circularly moving the sieve frames (24a to 24d) in a horizontal plane.

  FIG. 3 is a diagram showing a part of the system configuration of the wheat flour mill according to the embodiment. The wheat milling apparatus 2 includes a control unit 30 that controls the entire apparatus. The control unit 30 is connected to an input unit 31 for inputting a target stock flow rate ratio that is a target value of the flow rate ratio of each section when the stock is classified into a plurality of sections by the shifter 4. Further, a display unit 32 for displaying the stock grinding rate calculated by the control unit 30 is connected. Further, the gap adjusting unit 9, the first flow rate measuring device 10, the second flow rate measuring device 22, the first flow path switching unit 6 and the second flow path switching unit 18 are connected.

  FIG. 4 is a flowchart showing a milling method for milling wheat using the wheat milling apparatus 2 according to the embodiment. When performing wheat milling, first, an operator inputs a target stock flow rate ratio that is a target value of a flow rate ratio of each section when classifying the stock into a plurality of sections with the shifter 12 from the input unit 31. . And wheat is thrown in from the slot 4. The introduced wheat is supplied to the flow path on the 1B roll crusher 8 side via the first flow path switching unit 6 and is pulverized in the 1B roll crusher 8. The wheat pulverized in the 1B roll type pulverizer 8 is classified into a plurality of sections in the shifter 12 according to the grain size of the stock.

  Here, the stock that has been screened over by the sieve frame 12 a of the shifter 12 is supplied to the 2B roll type grinder 20 via the second flow path switching unit 18, and is crushed by the 2B roll type grinder 20. The stock pulverized in the 2B roll type pulverizer 20 is classified into a plurality of compartments in accordance with the particle size of the stock in the shifter 24. In addition, the stock sieved by the sieve frames 12b to 12d of the shifter 12 and the stock sieved by the sieve frames 24a to 24d of the shifter 24 are each processed in the next step located on the downstream side according to the grain size of the stock. Supplied to a device (not shown) for implementation.

The controller 30 measures the flow rate of wheat flowing into the 1B roll grinder 8 and the flow rate of stock flowing into the 2B roll grinder 20 at predetermined time intervals. That is, the control unit 30 outputs a control signal to the first channel switching unit 6, switches the wheat channel input from the input unit 6 to the first flow rate measuring device 10 side for a predetermined time, and The flow rate of wheat is measured by the flow rate measuring device 10 (step S11). Further, the control unit 30 outputs a control signal to the second flow path switching unit 18, and passes the stock flow path that has been screened by the sieve frame 12 a of the shifter 12 to the second flow rate measuring device 22 side for a predetermined time. The flow rate of the stock is measured by the second flow rate measuring device 22 by switching (step S12).

The control unit 30 acquires the wheat flow rate measured by the first flow rate measuring device 10 and the stock flow rate measured by the second flow rate measuring device 22, and calculates the stock grinding rate (step S13). That is, the grinding rate is
Grinding rate = 1− (stock flow rate measured by second flow measurement device 22) / (wheat flow rate measured by first flow measurement device 10)
Is calculated by And the control part 30 displays the calculated grinding | pulverization rate on the display part 32 (step S14).

  The control unit 30 is configured so that the stock flowing out from the shifter 12 becomes the target stock flow rate ratio input from the input unit 31 based on the measurement results in the first flow measurement device 10 and the second flow measurement device 22. The adjustment value of the roll gap between the pair of crushing rolls 8a and 8b of the 1B roll crusher 8 is calculated (step S15). That is, when the shifter 12 classifies the stock into a plurality of sections, an adjustment value of the roll gap is calculated so that the flow ratio of each section becomes the target stock flow ratio.

  The control unit 30 outputs a control signal based on the adjustment value of the roll gap to the gap adjustment unit 9. The gap adjusting unit 9 adjusts the gap between the pair of pulverizing rolls 8a and 8b based on the adjustment value of the roll gap (step S16).

  According to the wheat flour milling apparatus according to this embodiment, the roll gap of the roll type grinder can be adjusted repeatedly at regular time intervals without increasing the burden on the worker, so that the produced flour has high quality. Can be. Further, it is possible to solve the problem that the adjustment accuracy of the roll gap varies from worker to worker.

  In the above-described embodiment, the first flow rate measuring device 10 is arranged upstream of the 1B roll type grinder 8, and the second flow rate measuring device 22 is arranged downstream of the 1B roll type grinder 8, Based on the measurement results of the first flow rate measuring device 10 and the second flow rate measuring device 22, the 1 B roll crusher 8 so that the stock flowing out from the shifter 12 becomes the target stock flow rate ratio input from the input unit 31. The gap between the pair of rolls 8a and 8b is adjusted, but the first flow rate measuring device is arranged upstream of the roll type grinder included in the wheat flour mill, and the second flow rate is arranged downstream of the roll type grinder. A measuring device may be arranged to adjust the gap between the pair of rolls of the roll type pulverizer based on the measurement results of the first flow measuring device and the second flow measuring device.

DESCRIPTION OF SYMBOLS 2 ... Wheat milling device, 4 ... Input part, 6 ... 1st flow-path switching part, 8 ... Roll type crusher of 1B, 8a, 8b ... Roll, 9 ... Gap adjustment part, 10 ... 1st flow measuring device, 12 DESCRIPTION OF SYMBOLS ... Shifter, 18 ... 2nd flow-path switching part, 22 ... 2nd flow measuring device, 24 ... Shifter, 30 ... Control part, 31 ... Input part, 32 ... Display part

Claims (9)

In the wheat milling method of milling wheat to make flour,
The flow rate of the stock flowing into the roll type pulverizer is measured by a first flow rate measuring device installed upstream of the roll type pulverizer provided with a pair of pulverizing rolls and a gap adjusting unit for adjusting a gap between the pair of pulverizing rolls. A first flow rate measuring step;
A classification step of classifying the stock crushed by the roll grinder by a shifter installed downstream of the roll grinder into a plurality of compartments according to the particle size of the stock;
A second flow rate measuring step of measuring a flow rate of a specific section of the stock flowing out of the shifter by a second flow rate measuring device;
A flow rate acquisition step of acquiring, in a control unit, the flow rate of the stock measured in the first flow rate measurement step and the second flow rate measurement step;
A control signal output step in which the control unit outputs a control signal to the gap adjustment unit so that a ratio of the flow rate of the stock acquired in the flow rate acquisition step becomes a predetermined value;
And a gap adjusting step of adjusting a gap between the pair of pulverizing rolls from the gap adjusting unit based on the control signal.   The wheat milling method according to claim 1, wherein the roll machine is a brake roll.   3. The wheat milling method according to claim 2, wherein the brake roll is a 1B roll. An input unit for supplying stock;
A first flow rate measuring device that is arranged downstream of the charging unit and measures the flow rate of the stock charged from the charging unit;
A roll-type pulverizer that is disposed downstream of the first flow rate measuring device, includes a pair of pulverizing rolls and a gap adjusting unit that adjusts a gap between the pair of pulverizing rolls, and pulverizes the stock that has been input;
A shifter for classifying the stock installed downstream of the roll grinder and pulverized by the roll grinder into a plurality of compartments according to the particle size of the stock;
A second flow rate measuring device that measures a flow rate of a specific section among the plurality of sections classified by the shifter;
A calculation unit that calculates a pulverization rate of the stock flowing out of the shifter based on measurement results in the first flow measurement device and the second flow measurement device;
A wheat pulverization rate measuring apparatus comprising: a display unit configured to display the pulverization rate calculated by the calculation unit.   The wheat pulverization rate measuring apparatus according to claim 4, wherein the roll machine is a brake roll.   The wheat pulverization rate measuring apparatus according to claim 5, wherein the brake roll is a 1B roll. An input unit for supplying stock;
A first flow rate measuring device that is arranged downstream of the charging unit and measures the flow rate of the stock charged from the charging unit;
A roll-type pulverizer that is disposed downstream of the first flow rate measuring device, includes a pair of pulverizing rolls and a gap adjusting unit that adjusts a gap between the pair of pulverizing rolls, and pulverizes the stock that has been input;
A shifter for classifying the stock installed downstream of the roll grinder and pulverized by the roll grinder into a plurality of compartments according to the particle size of the stock;
A second flow rate measuring device that measures a flow rate of a specific section among the plurality of sections classified by the shifter;
When the shifter classifies the stock into the plurality of sections, an input unit for inputting a target stock flow ratio that is a target value of a flow ratio of each section;
A control unit that controls the gap adjustment unit based on the measurement results in the first flow measurement device and the second flow measurement device so that the stock flowing out of the shifter becomes the target stock flow rate ratio;
A wheat flour mill comprising:   The wheat milling apparatus according to claim 7, wherein the roll machine is a brake roll. The wheat flour mill according to claim 8, wherein the brake roll is a 1B roll.

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