CN102580813A - Method for producing whitened flour - Google Patents

Abstract

The invention discloses a method for producing whitened flour. The method comprises the following steps of: inspecting wheat; cleaning crude wheat; adjusting the moisture of the wheat; cleaning hulled wheat; grinding; bolting; feeding into a purifier; performing magnetic separation, and packaging; and warehousing. By the method, a cleaning process is added, so that a cleaning effect is well enhanced; white wheat and red wheat are reasonably mixed, so that flour with the whiteness of 80 can be produced without the addition of any additive; and simultaneously, the original flavor of the flour is ensured at the same time.

Description

A kind of production method that brightens flour

Technical field

The present invention relates to a kind of production method that brightens flour, do not add any additives in the production process.

Background technology

At present; In the process of making flour,, can use the flour brightening agent usually in order to increase the Baidu of flour; The active ingredient benzoyl peroxide (BPO) of flour brightening agent; Formal name used at school is the dilution benzoyl peroxide, its food additives that to be China's late nineteen eighties generally use flour from external introduction and beginning, and the flour brightening agent mainly is to be used for bleaching flour.On March 1st, 2011, food additives benzoyl peroxide, calper calcium peroxide from May 1st, 2011, are forbidden producing, in flour, added to multidisciplinary bulletin such as the Ministry of Public Health.But also some businessman " avenges equally white " for flour, still stealthily uses brightening agent, and such behavior is illegal; , do not use brightening agent, the flour color of producing is gloomy, has reduced consumer's desire to purchase, has directly influenced the sale of flour.

Summary of the invention

The objective of the invention is in order to overcome above deficiency, a kind of a kind of production method that brightens flour of not adding any additives, flour whiteness height, having guaranteed the original flavor of flour is provided.

The object of the invention is realized through following technical scheme: a kind of production method that brightens flour may further comprise the steps:

A, check wheat: wheat is divided into Bai Mai and red wheat, and Bai Mai and red wheat all are a kind of of wheat, and white wheat is divided into hard white wheat and soft white wheat; The real fringe spindle-type that is of son; Long awns, white shell, white grain, hard, red wheat is the wheat of red skin, wheat is carried out the check of moisture content, impurity, unit weight; The weight content of moisture content, impurity, unit weight is in the wheat after the check: moisture content≤14%, impurity≤1%, unit weight>=75%, unit weight are the weight of pure wheat in the unit wheat;

B, cleaning dirty wheat:

(1), the wheat after the check gets into the high-efficiency vibration sieve, when wheat is flowed through the high-efficiency vibration sieve, wheat is evenly distributed along the compass screen surface width, simultaneously the flow of wheat is transferred with 6000-6600/ m ³H ^-1, with the effect of raising screen and air draught, and should often clear up compass screen surface, keep sieve aperture unimpeded, prevent that wheat is damaged, reach technological effect;

(2), adopt buckwheat in the buckwheat spiral seed separator removal wheat, the black impurity in the minimizing grist;

(3), went the wheat of buckwheat to get into stone remover, keep 12--22/th when wheat advances stone remover ^-1Flow, get into equably continuously, wind speed is 800 m ³H ^-1, must not be suddenly big or suddenly small, go stone sieve plate, air uniform plate in the stone remover will often keep unblocked, in order to avoid the stone effect is gone in influence, contain the wheat situation in the running check range estimation stone;

(4), before wheat gets into wheat scourers, adopt magnetic separator to carry out the assorted cleaning of iron, should often clear up magnetic pole strength,, avoid damaging machine to improve effect;

(5), when wheat is flowed through wheat scourers, wheat is with 8-10/th ^-1Flow get into wheat scourers from the charging aperture tangential direction in since the high speed rotating of rotor, gapped between blade and the screen drum, the blade that re-packs of re-packing be interrupted arrangement, wheat receives the effect of blade and constantly advances to discharging opening from charging aperture; In the process of threshing wheat, wheat receives the strike of high speed rotational blade, simultaneously during wheat and move with the blade that re-packs; The time and lag behind the motion of the blade that re-packs, cause wheat and the blade that re-packs, wheat and screen drum, wheat and wheat between the friction frictional action, make the wheat surface obtain cleaning; Wheat is discharged from discharging opening under the promotion that re-packs, and the impurity of destroying passes screen drum and discharges from impurity outlet under the effect of outside air draught of screen drum and gravity, wherein; Re-packing is installed on the main shaft in the wheat scourers, re-packs 32 altogether, and per two angles between re-packing are 10 ° of 12 ˊ; Staggering like this to arrange constitutes helical form, and an end that re-packs and the vertical plane of main shaft reverse 15 °, hits wheat on the one hand; Promote material on the other hand and move to outlet, screen drum is made up of 2～3 dissection type braided steel wire screen clothes, and inner surface is uneven; Be beneficial to the friction of increase to wheat, strengthen threshing wheat effect, the transmission mechanism in the wheat scourers is made up of motor and belt pulley; Can adjust the linear velocity that re-packs through adjustment belt pulley size, effect thereby control is threshed wheat;

(6), the wheat after threshing wheat, get into rotary flat sieve, with in the further removing, small impurities and light impurity, and should often clear up compass screen surface, keep sieve aperture unimpeded, prevent that wheat is damaged, reach technological effect;

C, adjusting wheat moisture content:

(1), the wheat after will clearing up water; It is the crucial Quality Control point in the flour process that wheat water; The moisture content that is provided with when water is controlled at 14.5%-15.5%; Computer be need proofread when water and instant moisture content of water and check moisture content, whether sensitive to judge that computer water system, guarantee to reach technological requirement into the moisture content of mill;

(2), carry out wheat wetting after water, the tempering time of behind the water is 12-24 hours, when more or temperature is low at the hard grain, can adopt long tempering time;

D, cleaning light wheat:

(1), will pass through the wheat that moisture content regulates and further clear up, guarantee into the clean wheat of mill impure less than 0.5%;

(2), adopt magnetic separator to carry out the assorted cleaning of iron once more before grinding, guarantee to go into to grind not contain the magnetic metal thing in the clean wheat,, cause equipment breakdown and influence product quality in order to avoid grinding roller damages;

(3), white wheat in above-mentioned and red wheat are arranged in pairs or groups, red wheat content is many can to make the face that grinds whiter, and blend proportion is controlled at: white wheat 20-40%, red wheat 60-80%;

E, grinding:

(1), during grinding wheat, observe the feeding situation, evaluate, see the following form with break release, flour extraction rate:

The main operation index of shelling:	System	1B	2B	3B
					?	Break release	30—35%	45—55%	35—40%
?	Flour extraction rate (accounting for this road)	3—5%	10—12%	10%

The operation index of reduction system:

System

1M

2M

3M

4M

5M

6M

7M

?

Flour extraction (accounting for this road)

25—30%

40%

40%

?

?

?

?

?

Behind the wheat flour detacher

70%

55—60%

45%

40%

30%

20%

?

Wherein, 1B-3B is a tube cell, and 1M-7M is meant the broken heart that sifts out later of wheat flour milling; 1M refers to preceding road best wheat core powder in the wheat just, and arriving 7M backward with this pusher 5M is exactly road, back heart powder, and quality is more not good enough powder; In technological operation, can not do each association about 4M-7M is foundation; Because it is the back road of whole mill diagram, mass ratio is inferior, and general flour extraction can both reach more than 40%.

During grinding, air draught equipment keeps not leaking out, and keeps airduct unimpeded; During the feeding roller feeding wheat is evenly distributed on the whole grinding roller length; And make wheat fall into milling zone exactly, during the adjustment roll clearance, the material that the grinding roller two ends grind all plays flakes with the middle material that grinds.

F, screen: select 640 * 640mm sieve lattice, the 20W-40W of Pi Lu system, the slag road 40GG-60GG of system, the 11XX of wit system-14XX bolting silk, bolting silk is tough and tensile and flexible, can be flexible in length 15%--20% scope own; Keep the tensioning state of screen cloth on the sieve road, flow into the thickness of feed layer 57.1-68.7 ㎡ of compass screen surface, guarantee that good sifting efficiency all-pass CB36 retains 10% of CB42; During screen; Should guarantee that the hold down gag adjustment is good,, influence pink colour with the anti-channeling bran; After G, the screen, material gets into wheat flour purifier, and wheat flour purifier will guarantee big coarse grain (700～1400) * 2/ (kgh ^-1) medium and small coarse grain (400～700) * 2/ (kgh ^-1) screen cloth be equipped with and 40～70/ (m ³Min ^-1) air capacity, when regulating wheat flour purifier, material is the same during in boiling at the gluing liquid of time image on the compass screen surface, to guarantee good purification efficiency;

H, magnetic separation packing;

I, warehouse-in: the flour warehouse-in after the packing, warehouse-in back are taken out by the Quality Inspector and are claimed checking, and carry out record.

The present invention compared with prior art has the following advantages:

Compare with existing technological process in this technological process; Increase cleaning process more one, strengthened cleaning effect better, and; The content of rational white wheat of collocation and red wheat; Like this, under the situation of not adding any additives, can produce whiteness and reach 82 flour, also guarantee the original flavor of flour simultaneously.

The specific embodiment:

In order to deepen to understanding of the present invention, will combine embodiment that the present invention is made further detailed description below, this embodiment only is used to explain the present invention, does not constitute the qualification to protection domain of the present invention.

A kind of a kind of specific embodiment that brightens the production method of flour of the present invention may further comprise the steps:

A, check wheat: wheat is divided into Bai Mai and red wheat, and Bai Mai and red wheat all are a kind of of wheat, and white wheat is divided into hard white wheat and soft white wheat; The real fringe spindle-type that is of son; Long awns, white shell, white grain, hard, red wheat is the wheat of red skin, wheat is carried out the check of moisture content, impurity, unit weight; The weight content of moisture content, impurity, unit weight is in the wheat after the check: moisture content≤14%, impurity≤1%, unit weight>=75%, unit weight are the weight of pure wheat in the unit wheat;

B, cleaning dirty wheat:

(1), the wheat after the check gets into the high-efficiency vibration sieve, when wheat is flowed through the high-efficiency vibration sieve, wheat is evenly distributed along the compass screen surface width; Simultaneously the flow of wheat is transferred with 6000-6600/ m3h-1; With the effect of raising screen and air draught, and should often clear up compass screen surface, keep sieve aperture unimpeded; Prevent that wheat is damaged, reach technological effect;

(2), adopt buckwheat in the buckwheat spiral seed separator removal wheat, the black impurity in the minimizing grist;

(3), went the wheat of buckwheat to get into stone remover, keep 12--22/th when wheat advances stone remover ^-1Flow, get into equably continuously, wind speed is 800 m ³H ^-1, must not be suddenly big or suddenly small, go stone sieve plate, air uniform plate in the stone remover will often keep unblocked, in order to avoid the stone effect is gone in influence, contain the wheat situation in the running check range estimation stone;

(4), before wheat gets into wheat scourers, adopt magnetic separator to carry out the assorted cleaning of iron, should often clear up magnetic pole strength,, avoid damaging machine to improve effect;

(5), when wheat is flowed through wheat scourers, wheat is with 8-10/th ^-1Flow get into wheat scourers from the charging aperture tangential direction in since the high speed rotating of rotor, gapped between blade and the screen drum, the blade that re-packs of re-packing be interrupted arrangement, wheat receives the effect of blade and constantly advances to discharging opening from charging aperture; In the process of threshing wheat, wheat receives the strike of high speed rotational blade, simultaneously during wheat and move with the blade that re-packs; The time and lag behind the motion of the blade that re-packs, cause wheat and the blade that re-packs, wheat and screen drum, wheat and wheat between the friction frictional action, make the wheat surface obtain cleaning; Wheat is discharged from discharging opening under the promotion that re-packs, and the impurity of destroying passes screen drum and discharges from impurity outlet under the effect of outside air draught of screen drum and gravity, wherein; Re-packing is installed on the main shaft in the wheat scourers, re-packs 32 altogether, and per two angles between re-packing are 10 ° of 12 ˊ; Staggering like this to arrange constitutes helical form, and an end that re-packs and the vertical plane of main shaft reverse 15 °, hits wheat on the one hand; Promote material on the other hand and move to outlet, screen drum is made up of 2～3 dissection type braided steel wire screen clothes, and inner surface is uneven; Be beneficial to the friction of increase to wheat, strengthen threshing wheat effect, the transmission mechanism in the wheat scourers is made up of motor and belt pulley; Can adjust the linear velocity that re-packs through adjustment belt pulley size, effect thereby control is threshed wheat;

(6), the wheat after threshing wheat, get into rotary flat sieve, with in the further removing, small impurities and light impurity, and should often clear up compass screen surface, keep sieve aperture unimpeded, prevent that wheat is damaged, reach technological effect;

C, adjusting wheat moisture content:

(1), the wheat after will clearing up water; It is the crucial Quality Control point in the flour process that wheat water; The moisture content that is provided with when water is controlled at 14.5%-15.5%; Computer be need proofread when water and instant moisture content of water and check moisture content, whether sensitive to judge that computer water system, guarantee to reach technological requirement into the moisture content of mill;

(2), carry out wheat wetting after water, the tempering time of behind the water is 12-24 hours, when more or temperature is low at the hard grain, can adopt long tempering time;

D, cleaning light wheat:

(1), will pass through the wheat that moisture content regulates and further clear up, guarantee into the clean wheat of mill impure less than 0.5%;

(2), adopt magnetic separator to carry out the assorted cleaning of iron once more before grinding, guarantee to go into to grind not contain the magnetic metal thing in the clean wheat,, cause equipment breakdown and influence product quality in order to avoid grinding roller damages;

(3), white wheat in above-mentioned and red wheat are arranged in pairs or groups, red wheat content is many can to make the face that grinds whiter, and blend proportion is controlled at: white wheat 20-40%, red wheat 60-80%;

E, grinding:

(1), during grinding wheat, observe the feeding situation, evaluate, see the following form with break release, flour extraction rate:

The main operation index of shelling:	System	1B	2B	3B
					?	Break release	30—35%	45—55%	35—40%
?	Flour extraction rate (accounting for this road)	3—5%	10—12%	10%

The operation index of reduction system:

System

1M

2M

3M

4M

5M

6M

7M

?

Flour extraction (accounting for this road)

25—30%

40%

40%

?

?

?

?

?

Behind the wheat flour detacher

70%

55—60%

45%

40%

30%

20%

?

Wherein, 1B-3B is a tube cell, and 1M-7M is meant the broken heart that sifts out later of wheat flour milling; 1M refers to preceding road best wheat core powder in the wheat just, and arriving 7M backward with this pusher 5M is exactly road, back heart powder, and quality is more not good enough powder; In technological operation, can not do each association about 4M-7M is foundation; Because it is the back road of whole mill diagram, mass ratio is inferior, and general flour extraction can both reach more than 40%.

During grinding, air draught equipment keeps not leaking out, and keeps airduct unimpeded; During the feeding roller feeding wheat is evenly distributed on the whole grinding roller length; And make wheat fall into milling zone exactly, during the adjustment roll clearance, the material that the grinding roller two ends grind all plays flakes with the middle material that grinds;

F, screen: select 640 * 640mm sieve lattice, the 20W-40W of Pi Lu system, the slag road 40GG-60GG of system, the 11XX of wit system-14XX bolting silk, bolting silk is tough and tensile and flexible, can be flexible in length 15%--20% scope own; Keep the tensioning state of screen cloth on the sieve road, flow into the thickness of feed layer 57.1-68.7 ㎡ of compass screen surface, guarantee that good sifting efficiency all-pass CB36 retains 10% of CB42; During screen; Should guarantee that the hold down gag adjustment is good,, influence pink colour with the anti-channeling bran; After G, the screen, material gets into wheat flour purifier, and wheat flour purifier will guarantee big coarse grain (700～1400) * 2/ (kgh ^-1) medium and small coarse grain (400～700) * 2/ (kgh ^-1) screen cloth be equipped with and 40～70/ (m ³Min ^-1) air capacity, when regulating wheat flour purifier, material is the same during in boiling at the gluing liquid of time image on the compass screen surface, to guarantee good purification efficiency;

H, magnetic separation packing;

I, warehouse-in: the flour warehouse-in after the packing, warehouse-in back are taken out by the Quality Inspector and are claimed checking, and carry out record.

Compare with existing technological process in this technological process; Increase cleaning process more one, strengthened cleaning effect better, and; The content of rational white wheat of collocation and red wheat; Like this, under the situation of not adding any additives, can produce whiteness and reach 80 flour, also guarantee the original flavor of flour simultaneously.

Claims (1)

1. production method that brightens flour is characterized in that: may further comprise the steps:

A, check wheat: wheat is divided into Bai Mai and red wheat, and wheat is carried out the check of moisture content, impurity, unit weight, and the weight content of moisture content, impurity, unit weight is in the wheat after the check: moisture content≤14%, impurity≤1%, unit weight>=75%;

B, cleaning dirty wheat:

(1), the wheat after the check gets into the high-efficiency vibration sieve, when wheat is flowed through the high-efficiency vibration sieve, wheat is evenly distributed along the compass screen surface width, simultaneously the flow of wheat is transferred with 6000-6600/ m ³H ^-1, to improve the effect of screen and air draught;

(2), adopt buckwheat in the buckwheat spiral seed separator removal wheat, the black impurity in the minimizing grist;

(3), went the wheat of buckwheat to get into stone remover, keep 12-22/th when wheat advances stone remover ^-1Flow, get into equably continuously, wind speed is 800 m ³H ^-1

(4), before wheat gets into wheat scourers, adopt magnetic separator to carry out the assorted cleaning of iron;

(5), when wheat is flowed through wheat scourers, wheat is with 8-10/th ^-1Flow get into wheat scourers from the charging aperture tangential direction in since the high speed rotating of rotor, gapped between blade and the screen drum, the blade that re-packs of re-packing be interrupted arrangement, wheat receives the effect of blade and constantly advances to discharging opening from charging aperture; In the process of threshing wheat, wheat receives the strike of high speed rotational blade, simultaneously during wheat and move with the blade that re-packs; The time and lag behind the motion of the blade that re-packs, cause wheat and the blade that re-packs, wheat and screen drum, wheat and wheat between the friction frictional action, make the wheat surface obtain cleaning; Wheat is discharged from discharging opening under the promotion that re-packs, and the impurity of destroying passes screen drum and discharges from impurity outlet under the effect of outside air draught of screen drum and gravity, wherein; Re-packing is installed on the main shaft in the wheat scourers, re-packs 32 altogether, and per two angles between re-packing are 10 ° of 12 ˊ; Staggering like this to arrange constitutes helical form, and an end that re-packs and the vertical plane of main shaft reverse 15 °, hits wheat on the one hand; Promote material on the other hand and move to outlet, screen drum is made up of 2～3 dissection type braided steel wire screen clothes, and inner surface is uneven; Be beneficial to the friction of increase to wheat, strengthen threshing wheat effect, the transmission mechanism in the wheat scourers is made up of motor and belt pulley; Can adjust the linear velocity that re-packs through adjustment belt pulley size, effect thereby control is threshed wheat;

(6), the wheat after threshing wheat, get into rotary flat sieve, with in the further removing, small impurities and light impurity;

C, adjusting wheat moisture content:

(1), the wheat after will clearing up water, it is the crucial Quality Control point in the flour process that wheat water, the moisture content that is provided with when water is controlled at 14.5%-15.5%;

(2), carry out wheat wetting after water, the tempering time of behind the water is 12-24 hours;

D, cleaning light wheat:

(1), will pass through the wheat that moisture content regulates and further clear up, guarantee into the clean wheat of mill impure less than 0.5%;

(2), adopt magnetic separator to carry out the assorted cleaning of iron once more before grinding, guarantee to go into to grind not contain the magnetic metal thing in the clean wheat,, cause equipment breakdown and influence product quality in order to avoid grinding roller damages;

(3), white wheat in above-mentioned and red wheat are arranged in pairs or groups, red wheat content is many can to make the face that grinds whiter, and blend proportion is controlled at: white wheat 20-40%, red wheat 60-80%;

E, grinding:

(1), during grinding wheat, observe the feeding situation, evaluate, see the following form with break release, flour extraction rate:

The main operation index of shelling: System 1B 2B 3B ? Break release 30—35% 45—55% 35---40% ? Flour extraction rate (accounting for this road) 3—5% 10---12% 10%

The operation index of reduction system: System 1M 2M 3M 4M 5M 6M 7M ? Flour extraction (accounting for this road) 25—30% 40% 40% ? ? ? ? ? Behind the wheat flour detacher 70% 55-60% 45% 40% 30% 20% ?

Wherein, 1B-3B is a tube cell, and 1M-7M is meant the broken heart that sifts out later of wheat flour milling, and 1M refers to wheat core powder best in the wheat; With this pusher 5M is exactly the more not good enough back road heart powder of mass ratio to 7M backward; Because 4M-7M is that the back road mass ratio of whole mill diagram is inferior, is foundation so in technological operation, can not do each association, general flour extraction can both reach more than 40%;

During grinding, air draught equipment keeps not leaking out, and keeps airduct unimpeded; During the feeding roller feeding wheat is evenly distributed on the whole grinding roller length; And make wheat fall into milling zone exactly, during the adjustment roll clearance, the material that the grinding roller two ends grind all plays flakes with the middle material that grinds;

(2), the material after will grinding carries out loose powder, wheat flour detacher can loose well powder sheet;

F, screen: select 640 * 640mm sieve lattice, the 20W-40W of Pi Lu system, the slag road 40GG-60GG of system, the 11XX of wit system-14XX bolting silk, bolting silk is tough and tensile and flexible, can be flexible in length 15%--20% scope own; Keep the tensioning state of screen cloth on the sieve road, flow into the thickness of feed layer 57.1-68.7 ㎡ of compass screen surface, guarantee that good sifting efficiency all-pass CB36 retains 10% of CB42; During screen; Should guarantee that the hold down gag adjustment is good,, influence pink colour with the anti-channeling bran; After G, the screen, material gets into wheat flour purifier, and wheat flour purifier will guarantee big coarse grain (700～1400) * 2/ (kgh ^-1) medium and small coarse grain (400～700) * 2/ (kgh ^-1) screen cloth be equipped with and 40～70/ (m ³Min ^-1) air capacity, regulate wheat flour purifier, guarantee good purification efficiency;

H, magnetic separation packing;

I, warehouse-in: the flour warehouse-in after the packing, warehouse-in back are taken out by the Quality Inspector and are claimed checking, and carry out record.