CN110122740B - Secondary fine grinding process for processing rice dumpling flour - Google Patents
Secondary fine grinding process for processing rice dumpling flour Download PDFInfo
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- CN110122740B CN110122740B CN201810129330.9A CN201810129330A CN110122740B CN 110122740 B CN110122740 B CN 110122740B CN 201810129330 A CN201810129330 A CN 201810129330A CN 110122740 B CN110122740 B CN 110122740B
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
- A23L5/20—Removal of unwanted matter, e.g. deodorisation or detoxification
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L7/00—Cereal-derived products; Malt products; Preparation or treatment thereof
- A23L7/10—Cereal-derived products
- A23L7/198—Dry unshaped finely divided cereal products, not provided for in groups A23L7/117 - A23L7/196 and A23L29/00, e.g. meal, flour, powder, dried cereal creams or extracts
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
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- Health & Medical Sciences (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Polymers & Plastics (AREA)
- Cereal-Derived Products (AREA)
- Confectionery (AREA)
Abstract
The invention discloses a secondary fine grinding process for processing rice dumpling flour in the field of rice dumpling flour processing, which comprises the steps of screening, cleaning, mould removal, soaking, grinding, homogenizing, filter pressing, crushing and drying, wherein the grinding comprises primary grinding and secondary grinding, and glutinous rice pulp obtained by the primary grinding directly flows into a secondary grinding machine through a stainless steel guide groove to be secondarily ground; the rice dumpling flour produced by the process is boiled into rice dumpling without muddy soup, basin and gritty, has good expansibility, is fine and soft, has milky and bright color and luster, obvious faint scent of glutinous rice, comfortable mouthfeel, high pasting degree and good rehydration property, and effectively solves the problem that the existing rice dumpling flour is not fine enough in granularity and is not beneficial to eating.
Description
Technical Field
The invention relates to the field of glue pudding powder processing, in particular to a twice fine grinding process for glue pudding powder processing.
Background
China is the biggest rice producing country in the world and also the biggest rice food consuming country in the world. In 2016, the rice yield of China exceeds 2 hundred million tons, and accounts for about 40 percent of the total grain yield of China. The rice is most commonly consumed as a grain food, namely directly cooked into rice for eating, and in the production of the traditional rice products, the rice is generally processed into powder and then further processed. Therefore, the rice milling processing is in an important position in the traditional rice video processing in China.
Glutinous rice ball powder, which is one of the rice flour products, is usually made of glutinous rice. The rice dumpling is one of the representatives of traditional Chinese snacks, is a spherical food made of glutinous rice flour and the like, generally has stuffing, is cooked with soup to eat, and is also the most distinctive food in the rice dumpling. The sweet soup balls contain protein, fat, saccharides, calcium, phosphorus, iron, vitamin B1, vitamin B2, nicotinic acid, starch and the like, are rich in nutrition and are warm-tonifying and body-strengthening foods. However, the existing glue pudding powder has the common problems that the granularity of the glue pudding powder is not fine enough, so that the glue pudding powder is too strong in nourishing property, not beneficial to digestion, easy to stick teeth, and free from troubles and embarrassment in eating.
Disclosure of Invention
The invention aims to provide a secondary fine grinding process for processing sweet soup ball powder, which aims to solve the problem that the existing sweet soup ball powder is not fine enough in granularity and is not beneficial to eating.
In order to achieve the purpose, the basic technical scheme of the invention is as follows: the secondary fine grinding process for processing the rice dumpling flour comprises the following steps of:
screening, namely selecting white and uniform glutinous rice without peculiar smell, carefully selecting the glutinous rice, removing impurities, and controlling the water content of the glutinous rice to be below 14%;
cleaning, namely digging and building an elutriation pool underground to clean the glutinous rice;
removing mould, namely performing physical aspergillus flavus removing treatment on the cleaned glutinous rice;
soaking, namely soaking the sticky rice in water to ensure that the water absorption volume of the sticky rice is expanded to 1.1-1.3 times;
grinding, including primary grinding and secondary grinding, wherein the glutinous rice pulp obtained by the primary grinding directly flows into a secondary grinding machine by a stainless steel guide groove to be secondarily ground;
homogenizing, and uniformly stirring the glutinous rice paste which is subjected to secondary fine grinding and meets the fineness requirement;
performing filter pressing, namely performing filter pressing on the uniform glutinous rice pulp by using a filter press;
crushing, namely crushing the sticky rice blocks obtained after filter pressing;
drying, namely spreading and drying the crushed sticky rice blocks.
The principle and the advantages of the scheme are as follows: the quality of the raw material glutinous rice is controlled in the screening step, the glutinous rice processed by the glutinous rice with uniform color and no peculiar smell has higher quality, the occurrence of mildew and aging can be effectively reduced by controlling the moisture, and the quality of the glutinous rice dumpling flour is favorably improved. The washing tank is dug and built underground to wash the sticky rice, and the sticky rice is subjected to heat preservation and washing through the stable temperature environment of underground soil outside the tank wall, so that the sticky rice is not easy to agglomerate in the washing process, a three-dimensional tank body is not required to be built, the space utilization is good, the operation is convenient, the distance of subsequent mildew removal treatment can be increased, and the mildew removal quality is improved; the physical aspergillus flavus removing treatment can remove the aspergillus flavus attached to the surface of the sticky rice, improve the quality of the sticky rice and improve the quality of the prepared rice dumpling flour; the soaking step enables the glutinous rice to absorb water and be controlled in an optimal state with certain water content, the water content of the glutinous rice with volume expansion exceeding 1.3 times exceeds the requirement, the rice is too soft and is easy to generate sour taste, the original taste of the glutinous rice is damaged, the water content of the glutinous rice with volume expansion less than 1.1 times is not enough and is not soaked thoroughly, subsequent grinding is not easy to break, and the granularity of the produced glutinous rice pulp is too large, so that the edible taste is influenced; if the grinding is carried out only once during grinding, the granularity nonuniformity of the ground materials is often influenced due to the nonuniformity of water and materials during blanking. The uniformity of the powder particles is difficult to achieve, which directly influences the product quality of the rice dumpling flour, the rough feeling that the powder particles resist mouth discomfort when the rice dumpling is boiled and eaten appears, and after a plurality of experiments, two times of continuous grinding are adopted, so that the produced glutinous rice pulp is fine and smooth and the powder particle degree is uniform; homogeneity step carries out the homogeneous mixing processing in batches to the glutinous rice thick liquid for the glutinous rice thick liquid of continuous production collects back powder fineness even, and the glutinous rice ball powder that follow-up processes such as filter-pressing generated is fine and smooth, even, and the filter-pressing step carries out filter-pressing dewatering and drying to the glutinous rice thick liquid that the texture is even, generates massive glutinous rice ball powder, and breakage and drying step carry out further smashing and drying to the glutinous rice ball powder, are convenient for carry out quantitative package and store. The glutinous rice ball powder produced by the process is boiled into glutinous rice balls without muddy soup, basin and gritty, has good expansibility, is fine and smooth and soft, has milky and bright color and luster, obvious faint scent of glutinous rice, comfortable mouthfeel, high pasting degree and good rehydration property.
Preferably, as an improvement of the basic scheme, the mould removing step comprises the step of pumping the cleaned sticky rice and water into a vertical mould removing pipe for extrusion conveying by using a suction pump, wherein a plurality of spherical protrusions distributed spirally are integrally formed on the inner wall of the mould removing pipe. According to the process steps, the glutinous rice is vertically pushed and conveyed through the suction pump, the glutinous rice in the mold removing pipe is mutually squeezed and rubbed by the conveying force of the suction pump, the spherical protrusions in the mold removing pipe guide the movement of the glutinous rice to spirally move forward so as to increase the residence friction time of the glutinous rice in the mold removing pipe, the glutinous rice can be mutually rubbed with the glutinous rice to further improve the friction removal of aspergillus flavus on the surface of the glutinous rice, meanwhile, the vertical mold removing pipe enables convection tendency to exist between internally mixed water and the glutinous rice, and the cleaning removal effect of the aspergillus flavus on the surface of the glutinous rice can be further improved.
Preferably, the step of homogenizing includes primary homogenizing and secondary homogenizing, the primary homogenizing is to directly introduce the glutinous rice pulp formed by the secondary grinding into the primary homogenizing pool, the glutinous rice pulp is precipitated in the primary homogenizing pool, then the glutinous rice pulp in the primary homogenizing pool is pumped into the secondary homogenizing pool to be stirred and precipitated, and the volume of the secondary homogenizing pool is larger than that of the primary homogenizing pool. Adopt such process steps homogeneity once to carry out the buffer memory to preliminary glutinous rice thick liquid that produces as preferring, make glutinous rice thick liquid deposit in the short time and mix the back and aspirate in the secondary homogeneity pond again, this process makes glutinous rice thick liquid mix the motion after short time is stood for the first time again, can improve the even degree of the glutinous rice thick liquid that gets into in the secondary homogeneity pond, carry out large batch glutinous rice thick liquid mixing stirring again in the secondary homogeneity pond, homogeneity is carried out to the glutinous rice thick liquid that just generates to homogeneity once more like this, the homogeneity is mixed again to the glutinous rice thick liquid that different batches of generation to the secondary homogeneity, guarantee that the glutinous rice thick liquid texture that gets into the filter-pressing in batches is even, the granularity is even.
Preferably, the third scheme is an improvement of the second scheme, the glutinous rice is elutriated between the soaking step and the grinding step, and the elutriation comprises filtering and washing the glutinous rice for 3-4 times by using water in the soaking cylinder. Preferably, the process steps can be adopted to carry out surface cleaning on the glutinous rice again before grinding, the glutinous rice entering grinding can be ensured not to contain aspergillus flavus and other impurities through 3-4 times of filtering and cleaning, and the glutinous rice pulp generated by grinding keeps the original fragrance of the glutinous rice.
Preferably, according to the third aspect, in the homogenizing step, the glutinous rice pulp is detected in the primary homogenizing pool, the glutinous rice pulp with the passing rate of 90% and above of 100-mesh sieve is detected and sucked into the secondary homogenizing pool to be stirred and homogenized, and the glutinous rice pulp with the passing rate of less than 90% of 100-mesh sieve is detected and sucked into the stainless steel guide groove to flow into the secondary pulping machine to be re-grinded. Like this detect a small amount of glutinous rice thick liquid in the homogeneity pond once and can in time carry out the backward flow reprocessing before the glutinous rice thick liquid gets into the homogeneity pond of secondary in time, guarantee to get into the glutinous rice thick liquid texture in the homogeneity pond of secondary even, and the powder fineness is even and fine and smooth.
Preferably, in the fifth step, the sticky rice is washed by tap water in the washing step, and underground water is used in the soaking and elutriating steps. The sticky rice paste cleaning method has the advantages that impurities in sticky rice and dust on the surface of the sticky rice are mainly cleaned in the cleaning step, the cost of tap water is lower, the sticky rice paste can be taken conveniently, the soaking and elutriating steps are performed before grinding, underground water is adopted to ensure that impurities, mould and the like on the surface of the sticky rice are removed, meanwhile, other peculiar smells such as bleaching agent smell and chemical product residual smell existing in the tap water are avoided, the formed sticky rice paste can be ensured to keep the original fragrance of the sticky rice, and the sticky rice paste cleaning method is favorable for improving the quality of the sticky rice paste.
And a sixth preferred scheme is adopted, and as an improvement of the fifth preferred scheme, a plate and frame filter press is adopted in the filter pressing step, the filter pressing temperature is 45-70 ℃, and the filter pressing pressure is 0.4-0.6 MPa. Preferably, the process can ensure that the moisture in the glutinous rice pulp is removed and the rice dumpling flour after filter pressing is dried.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The following is further detailed by the specific embodiments:
reference numerals in the drawings of the specification include: the water injection device comprises a guide groove 1, a water injection cavity 2, a flashboard 3, a water discharge seam 4, a magnet 5, an electromagnet 6, a floating block 7, a contact 8, a contact piece 9, a rope 10 and a spring 11.
Example 1: the secondary fine grinding process for processing the rice dumpling flour comprises the following steps of:
screening, namely selecting white and uniform glutinous rice without peculiar smell, carefully selecting the glutinous rice, removing impurities, and controlling the water content of the glutinous rice to be below 14%;
cleaning, namely digging and building an elutriation pool underground to clean the glutinous rice by using tap water;
removing mould, namely performing physical aspergillus flavus removing treatment on the cleaned glutinous rice; the method comprises the steps of pumping cleaned glutinous rice and water into a vertical mould removing pipe for extrusion conveying by using a suction pump, wherein a plurality of spherical protrusions distributed spirally are integrally formed on the inner wall of the mould removing pipe, and the mould removing pipe is a galvanized steel pipe;
screening, namely connecting an outlet of the mould removing pipe to a three-stage filter sieve for screening, and screening out smaller impurities, sewage and impurities with the particle size larger than that of the sticky rice;
soaking, namely soaking the sticky rice in underground water to ensure that the water absorption volume of the sticky rice is expanded to 1.1 times, and changing water every 3 hours in the soaking process, wherein the sticky rice is soaked in a soaking pool for 14 hours in winter, the sticky rice is soaked in the soaking pool for 12 hours in spring and autumn, and the sticky rice is soaked in the soaking pool for 10 hours in summer;
elutriating, namely filtering and washing the sticky rice for 3-4 times by using underground water in the soaking cylinder;
grinding, including primary grinding and secondary grinding, wherein the glutinous rice pulp obtained by the primary grinding directly flows into a secondary grinding machine by a stainless steel guide groove to be secondarily ground;
homogenizing, and uniformly stirring the glutinous rice paste which is subjected to secondary fine grinding and meets the fineness requirement; the method comprises primary homogenization and secondary homogenization, wherein the primary homogenization is to directly guide the glutinous rice pulp formed by secondary grinding into a primary homogenizing tank, precipitate the glutinous rice pulp in the primary homogenizing tank, and then pump the glutinous rice pulp in the primary homogenizing tank into a secondary homogenizing tank for stirring and precipitation, and the secondary homogenizing tank is larger than the primary homogenizing tank; detecting the glutinous rice pulp in the primary homogenizing pool, sucking the glutinous rice pulp with the passing rate of 100 meshes of 90 percent and above to the secondary homogenizing pool for stirring and homogenizing, and sucking the glutinous rice pulp with the passing rate of 100 meshes of less than 90 percent into the stainless steel guide groove and flowing into the secondary pulping machine for pulping again;
performing filter pressing, namely performing filter pressing on the uniform glutinous rice pulp by using a filter press; adopting a plate and frame filter press, wherein the filter pressing temperature is 45-70 ℃, and the filter pressing pressure is 0.4-0.6 Mpa;
crushing, namely crushing the sticky rice blocks obtained after filter pressing;
drying, namely spreading and drying the crushed sticky rice blocks.
In the embodiment, during actual application, the quality of the raw material glutinous rice is controlled in the screening step, the glutinous rice dumpling flour processed by the glutinous rice with uniform color and no peculiar smell has higher quality, the mildew and aging can be effectively reduced by controlling the moisture, and the quality of the glutinous rice dumpling flour is favorably improved. The washing tank is dug and built underground to wash the sticky rice, and the sticky rice is subjected to heat preservation and washing through the stable temperature environment of underground soil outside the tank wall, so that the sticky rice is not easy to agglomerate in the washing process, a three-dimensional tank body is not required to be built, the space utilization is good, the operation is convenient, the distance of subsequent mildew removal treatment can be increased, and the mildew removal quality is improved; the physical aspergillus flavus removing treatment can remove the aspergillus flavus attached to the surface of the sticky rice, improve the quality of the sticky rice and improve the quality of the prepared sweet soup ball powder; the soaking step enables the glutinous rice to absorb water and be controlled in an optimal state with certain water content, the water content of the glutinous rice with volume expansion exceeding 1.3 times exceeds the requirement, the rice is too soft and is easy to generate sour taste, the original taste of the glutinous rice is damaged, the water content of the glutinous rice with volume expansion less than 1.1 times is not enough and is not soaked thoroughly, subsequent grinding is not easy to break, and the granularity of the produced glutinous rice pulp is too large, so that the edible taste is influenced; if the grinding is carried out only once during grinding, the granularity nonuniformity of the ground materials is often influenced due to the nonuniformity of water and materials during blanking. The uniformity of powder particles is difficult to achieve, the product quality of the rice dumpling flour is directly influenced, the rough feeling that the powder particles resist the mouth when the rice dumpling is cooked and boiled is generated, and the glutinous rice pulp is fine and smooth and has uniform powder particle size by adopting twice continuous grinding after a plurality of experiments; homogeneity step carries out the homogeneous mixing processing in batches to the glutinous rice thick liquid for the glutinous rice thick liquid of continuous production collects back powder particle degree even, and the glutinous rice ball powder that follow-up processes such as filter-pressing generated is fine and smooth, even, and the filter-pressing step carries out filter-pressing dewatering and drying to the glutinous rice thick liquid that the texture is even, generates massive glutinous rice ball powder, and breakage and drying step carry out further smashing and drying to the glutinous rice ball powder, are convenient for carry out quantitative package and store. The glutinous rice ball powder produced by the process is boiled into glutinous rice balls without turbid soup, non-stick basin and gritty, has good expansibility, fine and smooth soft texture, milky and bright color, obvious glutinous rice fragrance, comfortable mouthfeel, high gelatinization degree and good rehydration property.
The discharge gate of primary refiner is higher than the feed inlet of secondary refiner in this embodiment, the intercommunication has guide slot 1 of stainless steel between the discharge gate of primary refiner and the feed inlet of secondary refiner, as shown in fig. 1, be equipped with the water injection chamber 2 of the bar of its length direction of edge in the lateral wall of guide slot 1, the inside wall upper portion of guide slot 1 is equipped with the water gap 4 with 2 intercommunications in water injection chamber, water gap 4 extends along the length direction of guide slot 1, be equipped with flashboard 3 in the water injection chamber 2, be connected with spring 11 between the bottom in flashboard 3 and water injection chamber 2, the length of flashboard 3 is the same with the length of guide slot 1, flashboard 3 slides in 4 inboards in water gap. Magnet 5 is all fixed with at the both ends of flashboard 3, and 2 high-end insides of water injection chamber are fixed with kicking block 7 with rope 10, are fixed with contact 9 on the kicking block 7, and 2 high-end electromagnets 6 that are equipped with magnetism the same with magnet 5 in the water injection chamber, and electromagnet 6 is connected with contact 8, and contact 8 establishes ties in electromagnet 6's switching circuit with contact 9.
Fill water in the water injection chamber 2 to the 1 lateral wall of guide slot during the use, water fills up water injection chamber 2 from the low side gradually to high-end, water makes the flotation block 7 come-up after filling up water injection chamber 2, contact 9 and the contact of contact 8, electro-magnet 6 circular telegram, mutual repulsion between electro-magnet 6 and the magnet 5, flashboard 3 makes drainage seam 4 open in the downstream under the promotion of electro-magnet 6, the rivers outflow in water injection chamber 2 forms the water film on the inner wall of guide slot 1, can prevent effectively that the glutinous rice thick liquid from adhering on the inside wall of guide slot 1, and can close drainage seam 4 gradually along with the decline of water level in water injection chamber 2 after the use, can follow the high-end of guide slot 1 and wash guide slot 1 to the low side gradually, make no glutinous rice thick liquid remain in the guide slot 1.
Example 2, the only difference between this example and example 1 is that in the soaking step, the glutinous rice is swollen to 1.2 times in water absorption volume, and is soaked in the soaking tank for 15 hours in winter, 13 hours in spring and autumn, and 11 hours in summer.
Example 3, the only difference in this example from example 1 is that the glutinous rice is swollen to 1.3 times in water absorption volume in the soaking step, the glutinous rice is soaked in the soaking tank for 16 hours in winter, the glutinous rice is soaked in the soaking tank for 14 hours in spring and autumn, and the glutinous rice is soaked in the soaking tank for 12 hours in summer.
Comparative example 1, the rice dumpling flour obtained by adopting the conventional processing technology and only carrying out once grinding treatment.
Comparative example 2, sweet dumpling flour was processed under the condition that the water absorption volume expansion of the glutinous rice was less than 1.1 times during the soaking process.
Comparative example 3, sweet dumpling flour processed under the condition that the water absorption volume expansion of the sticky rice is more than 1.3 times in the soaking process.
The comparative tests of the above examples and comparative examples were carried out to compare the results of the corresponding rice dumpling flour prepared into rice dumplings as follows:
| item | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Degree of muddy soup | Youyou (an instant noodle) | Superior food | Superior food | Good wine | Good wine | Difference (D) |
| Degree of sticking to basin | Good wine | Superior food | Superior food | Good wine | Difference (D) | Difference between |
| Degree of gritty teeth | Good quality | Superior food | Superior food | Difference between | Difference (D) | Superior food |
| Expansibility of expansion | Superior food | Superior food | Good wine | Good wine | Superior food | Good wine |
| Degree of fineness | Good wine | Youyou (an instant noodle) | Superior food | Difference between | Difference (D) | Youyou (an instant noodle) |
| Fragrance | Original fragrance | Original fragrance | Original fragrance | Sour taste and peculiar smell | Original fragrance | Slightly sour |
By contrast, the glue pudding made of the glue pudding powder produced and processed by the process has the characteristics of no turbid soup, no basin sticking, no gritty teeth, good expansibility, fine and soft texture, milky and bright color, obvious faint scent of glutinous rice, comfortable mouthfeel and the like, is high in pasting degree and good in rehydration property, and particularly the glue pudding powder prepared by the scheme provided by the embodiment 2 has the highest quality, white and glossy color, retains the faint scent of the glutinous rice, no turbid soup, no basin sticking, no gritty teeth and finer mouthfeel.
The foregoing is merely an example of the present invention and common general knowledge in the art of specific structures and/or features of the invention has not been set forth herein in any way. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be defined by the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (6)
1. The secondary fine grinding process for processing the rice dumpling flour is characterized by comprising the following steps of: comprises the following steps of (a) carrying out,
screening, namely selecting glutinous rice, removing impurities from the glutinous rice, and controlling the water content of the glutinous rice to be below 14%;
cleaning, namely digging and building an elutriation pool underground to clean the glutinous rice;
removing mould, namely performing physical aspergillus flavus removing treatment on the cleaned glutinous rice; sucking the cleaned glutinous rice and water into a vertical mold removing pipe together by using a suction pump for extrusion conveying, wherein a plurality of spherical protrusions which are spirally distributed are integrally formed on the inner wall of the mold removing pipe;
soaking, namely soaking the sticky rice in water to ensure that the water absorption volume of the sticky rice is expanded to 1.1-1.3 times;
grinding, including primary grinding and secondary grinding, wherein the glutinous rice pulp obtained by the primary grinding directly flows into a secondary grinding machine by a stainless steel guide groove to be secondarily ground; the discharge port of the primary pulping machine is higher than the feed inlet of the secondary pulping machine, a stainless steel guide groove is communicated between the discharge port of the primary pulping machine and the feed inlet of the secondary pulping machine, a strip-shaped water injection cavity along the length direction of the guide groove is arranged in the side wall of the guide groove, a water drainage seam communicated with the water injection cavity is arranged at the upper part of the inner side wall of the guide groove, the water drainage seam extends along the length direction of the guide groove, a gate plate is arranged in the water injection cavity, a spring is connected between the gate plate and the bottom of the water injection cavity, the length of the gate plate is the same as that of the guide groove, and the gate plate slides inside the water drainage seam; magnets are fixed at two ends of the flashboard, a floating block is fixed inside the high end of the water injection cavity by a rope, a contact piece is fixed on the floating block, an electromagnet with the same magnetism as the magnets is arranged at the high end of the water injection cavity, the electromagnet is connected with a contact, and the contact piece are connected in series in a switching circuit of the electromagnet;
homogenizing, namely uniformly stirring the glutinous rice slurry which is subjected to secondary fine grinding and meets the fineness requirement;
performing filter pressing, namely performing filter pressing on the uniform glutinous rice pulp by using a filter press;
crushing, namely crushing the sticky rice blocks obtained after filter pressing;
drying, namely spreading and drying the crushed sticky rice blocks.
2. The rice dumpling flour processing secondary fine grinding process of claim 1, which is characterized in that: the homogeneity step includes once homogeneity and secondary homogeneity, and once homogeneity is for directly leading-in once homogeneity pond with the glutinous rice thick liquid that the secondary ground thick liquid formed, deposits the glutinous rice thick liquid in once homogeneity pond, then pumps the glutinous rice thick liquid in once homogeneity pond to stir and deposit in the secondary homogeneity pond, and the volume in secondary homogeneity pond is greater than once homogeneity pond.
3. The rice dumpling flour processing secondary fine grinding process of claim 2, characterized in that: and elutriating the sticky rice between the soaking step and the grinding step, wherein the elutriating comprises filtering and washing the sticky rice for 3-4 times by using water in the soaking cylinder.
4. The rice dumpling flour processing secondary fine grinding process of claim 3, characterized in that: and in the homogenizing step, the glutinous rice pulp is detected in the primary homogenizing tank, the glutinous rice pulp with the passing rate of 100 meshes of 90 percent and above is sucked into the secondary homogenizing tank for stirring and homogenizing, and the glutinous rice pulp with the passing rate of 100 meshes of less than 90 percent is sucked into the stainless steel guide groove and flows into the secondary pulping machine for pulping again.
5. The rice dumpling flour processing secondary fine grinding process of claim 4, characterized in that: in the cleaning step, tap water is used for cleaning the glutinous rice, and underground water is used in the soaking and elutriating steps.
6. The rice dumpling flour processing secondary fine grinding process of claim 5, characterized in that: and a plate and frame filter press is adopted in the filter pressing step, the filter pressing temperature is 45-70 ℃, and the filter pressing pressure is 0.4-0.6 Mpa.
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| CN106819794A (en) * | 2016-12-21 | 2017-06-13 | 重庆源源龙脉食品有限公司 | The de- aspergillus flavus dumpling flour production technology of physics |
| CN107156630A (en) * | 2017-06-14 | 2017-09-15 | 叙永县马岭粮油食品有限公司 | A kind of preparation technology of water mill dumpling flour |
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| CN104706681A (en) * | 2015-04-02 | 2015-06-17 | 河南省奥林特药业有限公司 | Preparation method of river sand serving as auxiliary material for traditional Chinese medicine processing |
| CN106819794A (en) * | 2016-12-21 | 2017-06-13 | 重庆源源龙脉食品有限公司 | The de- aspergillus flavus dumpling flour production technology of physics |
| CN107156630A (en) * | 2017-06-14 | 2017-09-15 | 叙永县马岭粮油食品有限公司 | A kind of preparation technology of water mill dumpling flour |
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