Glutinous rice flour grinding process for producing maltose by ancient method

Abstract

The present invention discloses a glutinous rice flour grinding process for ancient method maltose production, and relates to the technical field of grinding, and the glutinous rice flour grinding process comprises the following steps: taking a proper amount of glutinous rice, putting into a cleaning part, removing impurities in the glutinous rice through multiple times of cleaning, discharging a part of rice washing water after the last time of cleaning until the remaining water just immerses the glutinous rice, and standing and soaking; draining and absorbing moisture on the surface of the glutinous rice, and putting the glutinous rice into a freezing part for quick-freezing; soaking the glutinous rice again and intermittently shaking; putting the glutinous rice into the freezing part again; unfreezing the glutinous rice, and drying the glutinous rice until surface moisture is removed; grinding the glutinous rice in a grinding part to obtain the glutinous rice flour. Sticky rice absorbs water and is subjected to quick-freezing treatment, so that slender cracks exist on the surface, free water in the sticky rice grains forms ice crystals to extrude internal structures of the sticky rice grains due to the fact that the sticky rice grains which are soaked and absorb water are subjected to the low-temperature effect in the freezing process, and after the sticky rice grains are dried, the surface moisture loss of the sticky rice grains is faster, the internal loss is slow, and cracks and cracks are generated.

Description

Technical Field

[0001] The invention relates to the technical field of grinding, and in particular to a grinding process for glutinous rice flour used in traditional maltose production. Background Art

[0002] Maltose is a sugar formed by the hydrolysis of starch. It is usually transparent and viscous and is widely used in food processing, candy manufacturing, beverage production and other fields. The preparation process mechanism of maltose is mainly based on the saccharification and concentration process of starch. In the existing maltose preparation process, the raw materials (such as sweet potato starch, glutinous rice, millet, etc.) are first added with water to form a starch milk of a certain concentration, which is stirred evenly and then boiled to gelatinize the starch; after the starch is gelatinized, it is cooled to a suitable temperature (such as 50-55°C), and a certain amount of malt powder is added (in the ancient method of making maltose, malt is directly used. Barley produces amylase during the germination process. These enzymes have the ability to decompose starch into monosaccharides) to achieve saccharification. The above saccharification process needs to maintain a suitable temperature (such as about 60°C) and last for 8 to 10 hours, and stir to promote the saccharification reaction. When the iodine solution is colorless or light yellow, it means that the saccharification is completed; after saccharification, it is boiled at high temperature to kill microorganisms and achieve concentration.

[0003] The maltose made from glutinous rice grinding usually has a more delicate and smooth taste. The ground glutinous rice can be more fully hydrolyzed into small molecular sugars during the saccharification process, making the sweetness of the maltose more uniform and the taste more delicate. After the glutinous rice is ground, its particles become smaller, the surface area increases, and the contact area with the amylase in the malt also increases accordingly, which is conducive to the amylase acting better on the starch in the glutinous rice, hydrolyzing it into reducing sugars such as maltose, thereby improving the saccharification efficiency. In addition, the ground glutinous rice is easier to mix evenly with malt, ensuring that the amylase can fully act on the starch in the glutinous rice during the saccharification process. In the prior art, glutinous rice grinding is roughly divided into dry grinding, wet grinding and semi-dry grinding technology, and the above grinding technologies all have corresponding advantages and disadvantages.

[0004] The prior art proposes a process for making maltose from broken rice (glutinous rice flour), which includes the process of "raw materials, soaking, grinding, slurry adjustment, liquefaction, saccharification, filter pressing, concentration, and finished products". In the grinding process, wet grinding is mainly used. Wet grinding is the most traditional grinding method in my country to grind out slurry. It mainly includes cleaning, soaking, grinding, dehydration and drying processes (maltose preparation process does not involve dehydration and drying, but the slurry concentration is adjusted as needed). Among them, soaking and grinding are the special features of the wet method that are different from other methods. Wet rice flour has a delicate, smooth, and soft powder texture, and compared with the dry method and semi-dry method, the particle size distribution range is narrow, the damaged starch content is low, the rice flour obtained is of excellent quality, and has good secondary processing performance. At the same time, the wet flour making method does not generate a large amount of dust. During the soaking process, the rice grains come into contact with a large number of water molecules. The cell walls and other polymers have a strong hydration effect, allowing water to penetrate into the interior of the rice grains. The internal starch granules and proteins have different rates of water absorption and expansion abilities. Therefore, the rice grains become broken, the structure becomes loose, and the hardness decreases. Then, they are ground with a large amount of water, which reduces the hardness. The large amount of water absorbs heat during grinding, which reduces mechanical damage, thereby better protecting the integrity of the starch granules.

[0005] However, the wet milling method usually requires adding a large amount of water to soak the rice grains. The soaking process usually takes a long time, which makes the processing efficiency low. At this time, the high moisture environment is conducive to the growth and reproduction of microorganisms, so it is easy to have problems of bacterial contamination. In addition, during the refining process, the protein matrix containing starch granules is destroyed and the starch granules are released from the protein network. At this time, water-soluble substances are dissolved in a large amount of water. Therefore, slurry adjustment is required after refining, which makes the slurry concentration difficult to control, the process is complicated, the production cycle is long, and the slurry concentration is difficult to control. Summary of the invention

[0006] The purpose of the present invention is to provide a glutinous rice flour grinding process for the production of traditional maltose, wherein the glutinous rice is frozen until cracks are generated and then soaked, and then ground and slurried. During the slurry mixing process, the amount of water added can be directly determined according to needs, thereby solving the problems in the prior art that the slurry concentration is inconvenient to adjust and bacteria are easily bred.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] S1, take an appropriate amount of glutinous rice and put it into the cleaning part, remove impurities in the glutinous rice by multiple washings, drain part of the rice washing water after the last washing until the remaining water just submerges the glutinous rice, and let it stand and soak for 30 to 50 minutes;

[0009] In the initial stage of soaking, the water content increases with time. The water content of glutinous rice grains increases rapidly when the soaking time is 0min to 45min. The water content of glutinous rice grains at different soaking times is significantly different. The increase in water content slows down after 45min of soaking. The initial soaking time is selected as 50min to allow the glutinous rice to quickly absorb some water.

[0010] S2, drain and absorb the moisture on the surface of the glutinous rice, put it into a freezing part and freeze it at -35°C for the first time, the freezing time is 30 to 40 minutes, and the surface of the glutinous rice is dried after the freezing is completed;

[0011] The glutinous rice absorbs water and is quickly frozen, which causes long and thin cracks on the surface. Since the glutinous rice grains that are soaked and absorbed water are exposed to low temperature during the freezing process, the free water in the glutinous rice grains forms ice crystals that squeeze the internal structure of the glutinous rice grains. After drying, the rice grains lose moisture on the surface faster and the inside loses moisture slowly, resulting in uneven shrinkage with large shrinkage on the surface and small shrinkage on the inside, which causes cracks and fissures.

[0012] S3, soaking the glutinous rice again for 70 to 90 minutes, and shaking the glutinous rice intermittently during the soaking process;

[0013] Since cracks have formed on the surface of the glutinous rice, soaking it again can allow water to quickly penetrate into the interior of the glutinous rice through the cracks, thereby improving the soaking effect and allowing the glutinous rice to absorb water.

[0014] S4, putting the glutinous rice soaked in step S3 into the freezing part again, and freezing it again in a -35°C environment for 10 to 20 minutes;

[0015] This creates cracks inside the glutinous rice, making it easier to grind.

[0016] S5, thawing the glutinous rice, and drying the glutinous rice until surface moisture is removed;

[0017] Glutinous rice with a small amount of moisture in it is prone to form clumps when ground. Drying can reduce the clumping of glutinous rice during the grinding process.

[0018] S6, putting glutinous rice into a grinding part and grinding it to obtain glutinous rice flour.

[0019] During the grinding process of step S6, the broken rice with mesh size that does not meet the requirements is screened out and sent back to the grinding part through the feeding part for re-grinding until all the glutinous rice is ground into glutinous rice flour with mesh size that meets the requirements;

[0020] Since the glutinous rice is soaked and frozen, it is easy to form lumps after grinding. The ground glutinous rice crumbs are screened to screen out the lumps that do not meet the mesh requirements and re-load them. The loading process can be dried again and repeated grinding.

[0021] The water used for secondary soaking of glutinous rice in step S3 is acidic electrolyzed water;

[0022] After treatment with acidic electrolyzed water, the peak viscosity of rice noodles increased and the minimum viscosity decreased, and the hardness of fresh wet rice noodles was significantly improved. Therefore, the addition of electrolyzed water can promote the gelatinization of rice noodles and improve the texture quality of fresh wet rice noodles.

[0023] A further improvement of the technical solution of the present invention is that: the cleaning component includes a first skid-mounted frame and a cleaning tank, the cleaning tank is fixedly connected to the top of the first skid-mounted frame, two filling pipes are arranged on the top of the cleaning tank, electric valves are arranged inside the filling pipes, the filling pipes are connected to an external water supply pipe, the water provided by one of the water supply pipes is acidic electrolyzed water, a sewage pipe is arranged at the bottom of the cleaning tank, an electric valve is arranged inside the sewage pipe, hollow shafts are symmetrically rotatably connected on both sides of the inner wall of the cleaning tank, a filter cartridge is fixedly connected between the ends close to each other, a cleaning motor is fixedly connected to the top of the first skid-mounted frame, one end of one of the hollow shafts extends to the outside of the cleaning tank and is fixedly connected to the output end of the cleaning motor; a first auger is rotatably connected between both sides of the inner wall of the filter cartridge, the blades of the first auger are in contact with the inner wall of the filter cartridge, a push motor is fixedly connected to one side of the cleaning tank, the output end of the push motor extends to the inside of the filter cartridge through the hollow shaft and It is fixedly connected to one end of the central axis of the first auger; a notch is provided on the side wall of the filter cartridge, and a cleaning tank is fixedly connected to the side wall of the filter cartridge at the position of the notch, and first slide rails are symmetrically fixedly connected to the two sides of the inner wall of the cleaning tank, and a sealing plate is slidably connected between the outer sides of the two first slide rails, and the sealing plate is configured to be symmetrical with the arc plate and match the shape of the notch; a feed inlet and a discharge port are symmetrically provided on the side wall of the filter cartridge at the same axial position, and a sleeve is symmetrically sleeved on the outer side of the filter cartridge, and the sleeve is rotatably connected to the filter cartridge, and a delivery pipe is fixedly connected to the side wall of one of the sleeves, and the top of the delivery pipe extends to the top of the cleaning tank, and a cleaning discharge pipe is fixedly connected to the side wall of the other sleeve, and the bottom end of the cleaning discharge pipe extends to the bottom of the cleaning tank, and both the delivery pipe and the cleaning discharge pipe are fixedly connected to the cleaning tank; friction rings with rough surfaces are fixedly connected to the two end surfaces of the filter cartridge, and rough surfaces are provided on both sides of the inner wall of the cleaning tank, and the rough surface of the cleaning tank contacts the friction ring.

[0024] By adopting the above technical scheme, water is injected into the cleaning tank through a filling pipe, and the amount of water injected does not exceed the height of the bottom of the filter cartridge. After the water injection is completed, the filter cartridge is controlled to flip back and forth, and the flipping amplitude in each direction does not exceed 45 degrees. During the flipping process, the friction ring slides relative to the rough surface on the inner wall of the cleaning tank and shakes continuously, so that the glutinous rice tumbles in the water and vibrates at a high frequency, thereby achieving the cleaning of the glutinous rice. Accompanied by the above-mentioned shaking process, the glutinous rice is gathered in the cleaning tank and spread out. After the cleaning is completed, the feed port and the discharge port are kept facing upward and the drain pipe is opened to discharge the rice washing water. After cleaning, fine impurities can pass through the filter cartridge and be discharged.

[0025] A further improvement of the technical solution of the present invention is that: the freezing component includes a freezing cabinet fixedly connected to the inside of the first skid-mounted frame, a compressor for providing a cold source to the freezing cabinet is also fixedly installed inside the first skid-mounted frame, a cleaning discharge pipe extends to the inside of the freezing cabinet through the top of the freezing cabinet, a freezing discharge pipe is arranged at the bottom of one side of the freezing cabinet, an electric push rod is fixedly connected to the top of the freezing cabinet, the output end of the electric push rod extends to the inside of the freezing cabinet and is fixedly connected to a lifting frame, a plurality of trays are staggered and hinged on both sides of the inner wall of the freezing cabinet, air holes are arranged on the trays, a bracket is fixedly connected to the bottom of the tray, a support rod is fixedly connected to one side of the lifting frame, and the support rod is slidably connected to the inner wall of the bracket; a screw rod is rotatably connected between the inner walls of the freezing cabinet, a material spreading motor is fixedly connected to one side of the freezing cabinet, the output end of the material spreading motor extends to the inside of the freezing cabinet and is fixedly connected to one end of the screw rod, a slider is threadedly connected to the outer side of the screw rod, a drying rake equal to the number of the trays is arranged on one side of the slider, a water receiving box is placed at the bottom of the inner wall of the freezing cabinet, and an electric valve is arranged inside the freezing discharge pipe.

[0026] By adopting the above technical scheme, during the process of the glutinous rice falling into the freezer, the spreading motor is controlled to work, driving the screw rod to rotate, and the slider moves along the axial direction of the screw rod, and drives the drying rake to move, so as to spread the glutinous rice in the tray. The glutinous rice falls on each layer of the tray in sequence as pushed by the drying rake. The initial amount of glutinous rice taken is less than the amount of glutinous rice that the tray can carry after the above-mentioned flat spreading. At the same time, the glutinous rice presents wavy stripes on the tray, thereby increasing the refrigeration area.

[0027] A further improvement of the technical solution of the present invention is that: the drying rake is rotatably connected to the side wall of the slider through a damping shaft, the central axis of the drying rake extends to the other side of the slider and is fixedly connected to a transmission gear, one side of the slider is fixedly connected to a fixed block corresponding to the tray one by one, the bottom of the fixed block is slidably connected to a second slide rail, the bottom of the second slide rail is fixedly connected to a rack, the rack is meshed with the transmission gear, both ends of the rack are fixedly connected to pads, and both sides of the inner wall of the freezer are fixedly connected to top blocks used in conjunction with the pads.

[0028] The above technical solution is adopted, by setting the drying rake as a reversible structure, when the slider moves until the pad contacts the top block, the rack is pushed as the slider continues to move, thereby moving relative to the slider, and driving the transmission gear to rotate, and driving the drying rake to flip until it is at the end of the slider stroke (the flipping amplitude is 90°), specifically: the tray is a carrier tray with an opening on one side, the drying rake is in a horizontal state when it is at the end with the opening, and in a vertical state when it is at the end without the opening of the tray, so that the drying rake can move in a vertical state (teeth facing downward) from the side without the opening to the side with the opening, so as to spread the glutinous rice from the opening to the next layer of the tray, and when it moves from the side with the opening to the side without the opening, it is in a horizontal state, and the drying rake does not contact the glutinous rice in this process, thereby avoiding pushing the glutinous rice to the side without the opening to cause accumulation or even overflow. Refrigerate the inside of the freezer until cracks appear on the surface of the glutinous rice.

[0029] A further improvement of the technical solution of the present invention is that: installation openings are provided on both sides of the cleaning discharge pipe, and partitions are fixedly connected inside the installation openings, and a number of strip grooves are equidistantly provided on the partitions; water squeezing plates are symmetrically fixedly connected on both sides of the cleaning discharge pipe, and a number of water squeezing grooves are provided on the water squeezing plates; servo modules are fixedly connected to the two opposite outer walls of the cleaning discharge pipe, and a linkage rod is fixedly connected to the movable end of the servo module, and traction blocks are fixedly connected between the ends of the linkage rods; moisture-absorbing cloths equal in number to the strip grooves are fixedly connected between the two traction blocks at equidistant intervals; the moisture-absorbing cloths, strip grooves and water squeezing grooves correspond to each other one by one, and the moisture-absorbing cloths pass through the strip grooves and the water squeezing grooves at the same time, and the moisture-absorbing cloths fit tightly against the inner wall of the water squeezing grooves.

[0030] By adopting the above technical solution, when the glutinous rice passes through the cleaning discharge pipe, the servo module is controlled to work, driving the linkage rod to make reciprocating motion, thereby making the traction block and the moisture absorbent cloth to make reciprocating motion. In the above process, the glutinous rice passes through the gap between the moisture absorbent cloths so that the moisture is absorbed by the moisture absorbent cloths, and the moisture absorbent cloths carry the moisture to the outside of the cleaning discharge pipe during the above process and are squeezed out when passing through the water squeezing trough, thereby completing the wiping of the glutinous rice and falling on the tray, thereby reducing the residual moisture on the surface of the glutinous rice.

[0031] The further improvement of the technical solution of the present invention lies in that: the feeding component includes a feeding bin, a plurality of support rods are fixedly connected to the top of the feeding bin, a transmission box is fixedly connected between the tops of the plurality of support rods, a feeding cylinder is fixedly connected to the top of the feeding bin, a switching cylinder is rotatably connected between the top of the feeding cylinder and the bottom of the transmission box, a feeding pipe is arranged on the switching cylinder, and the feeding pipe is inclined, a second auger is rotatably connected between the bottom of the inner wall of the feeding bin and the bottom of the transmission box, a feeding motor is fixedly connected to the top of the transmission box, the top of the central axis of the second auger and the output end of the feeding motor both extend to the interior of the transmission box and are connected by belt and pulley transmission; a support plate is fixedly connected to the outer wall of the support rod, a switching motor is fixedly connected to the bottom of the support plate, the output end of the switching motor extends to the top of the support plate and is fixedly connected to a crank handle, a transmission column is arranged at the end, and a slide is fixedly connected to the outer wall of the switching cylinder, and the slide is slidably connected to the transmission column; a heating pipe is wound around the outside of the feeding cylinder, and the heating pipe is provided with a heat source provided by an external heating device, and a plurality of ventilation holes are opened on the side wall of the feeding cylinder.

[0032] By adopting the above technical solution, the feeding motor is controlled to drive the second auger to rotate, so that the glutinous rice that has been frozen for the first time is lifted to the discharge pipe. Before this operation, the switching motor is controlled to drive the handle to rotate, so that the axis of the barrel above the slide rotates. During the process, the transmission column slides relative to the inner wall of the slide, and the slide drives the switching barrel to rotate. The discharge pipe flips until it is above the grinding box, so that the lifted material can enter the grinding box, so as to facilitate the feeding of the first grinding and multiple grinding; and if the discharge pipe is flipped to the top of the delivery pipe through the above operation before this operation, the material can be thrown into the cleaning tank, so as to facilitate the feeding of the first soaking and the second soaking, so as to achieve multiple uses of one machine.

[0033] Among them, the heating pipe can heat and dry the materials lifted in the upper barrel, and the water vapor is discharged from the ventilation holes.

[0034] The further improvement of the technical solution of the present invention lies in that: the grinding component comprises a second skid-mounted frame and a grinding box, the grinding box is fixedly connected to the top of the second skid-mounted frame, and two grinding rollers used in conjunction are rotatably connected between the two sides of the inner wall of the grinding box, one end of the central axis of the two grinding rollers extends to the outside of the grinding box and is connected through mutually meshing gear transmission, and a grinding motor is fixedly installed on the outer wall of the grinding box, one end of the central axis of one grinding roller away from the gear is connected to the output end of the grinding motor through a reducer transmission, and guide plates are symmetrically fixedly connected to the two sides of the inner wall of the grinding box, and the guide plates are inclined; a fixed plate is fixedly connected between the two sides of the inner wall of the grinding box, and two first sliding rods are symmetrically slidably connected to one side of the fixed plate, one end of the first sliding rod is fixedly connected to the limiting block, and the ends of the two first sliding rods away from the limiting head extend to the other side of the fixed plate and are fixedly connected with a brush between them, the bristle part of the brush contacts the grinding roller, and a first spring is sleeved on the outside of the first sliding rod and between the fixed plate and the brush; a lower hopper is arranged at the bottom of the grinding box.

[0035] By adopting the above technical solution, a brush is arranged under the grinding roller to clean the grinding roller during the grinding process, thereby brushing off the adhered lumps, thereby avoiding the situation where the lumps adhere to the grinding roller.

[0036] A further improvement of the technical solution of the present invention is that: a through groove is provided at the bottom of the lower hopper, a screen is fixedly connected between the inner walls of the through groove, the top of the screen is flush with the bottom of the inner wall of the lower hopper, a plurality of deceleration platforms are fixedly connected to the bottom of the inner wall of the lower hopper, the end surface of the deceleration platform is semi-elliptical, friction plates are connected to the two sides of the lower hopper by screws, a mounting plate is fixedly connected to the top of the inner side of the second skid mounting frame, two second slide bars are slidably connected to the top of the mounting plate, pads are fixedly connected between the tops of the second slide bars, and the bottoms of the second slide bars are extended A friction block extends to the bottom of the mounting plate and is connected with it by screws, the friction block and the friction plate are in contact with each other and the contacting side is set to a rough surface; a second spring is sleeved on the outside of the second slide bar and located between the pad and the mounting plate; a cam is fixedly connected to one end of the central axis of the two grinding rollers close to the gear, and the cam is in contact with the pad; a transfer box is fixedly connected to the middle position of the inner side of the second skid-mounted frame, a transfer pipe is set at the bottom of the transfer box, the bottom end of the transfer pipe extends to the inside of the feeding bin, and the bottom of the freezing discharge pipe extends to the inside of the feeding bin.

[0037] By adopting the above technical solution, a deceleration table is set on the surface of the screen to slow down the speed of the crushed material sliding down. In order to avoid material jamming, a cam that can rotate along with the grinding roller is also set, so that the pad can be pressed periodically, and the second spring is used to make the friction block reciprocate up and down, and the rough surface and the friction plate rub against each other to generate vibration, so as to assist material discharge and avoid material jamming.

[0038] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art:

[0039] 1. The present invention sets a freezing treatment and then grinding process. In the actual processing process, the glutinous rice is first soaked before the initial freezing, and the glutinous rice absorbs water and is quickly frozen so that elongated cracks appear on the surface. Since the glutinous rice grains that are soaked and absorb water are subjected to the low temperature during the freezing process, the free water in the glutinous rice grains forms ice crystals to squeeze the internal structure of the glutinous rice grains. After drying, the surface moisture of the rice grains is lost faster, while the internal moisture is lost slowly, thereby causing uneven shrinkage with large surface shrinkage and small internal shrinkage, thus generating cracks and cracks. Since cracks have been formed on the surface of the glutinous rice, soaking again can allow water to quickly penetrate into the interior of the glutinous rice through the cracks, thereby improving the soaking effect, allowing the interior of the glutinous rice to absorb water, and performing a secondary freezing treatment, thereby causing the interior of the glutinous rice to crack, thereby making it easy to grind.

[0040] 2. The present invention is provided with a cleaning component that can take into account the multiple functions of glutinous rice discharge, cleaning and soaking, and its function can be changed according to the direction of the filter cartridge. During the cleaning and soaking process, the cleaning tank is located below the filter cartridge, and the glutinous rice is gathered in the cleaning tank, and the filter cartridge is rotated to shake it to achieve cleaning and soaking (auxiliary shaking); and after the operation is completed, the paddle filter cartridge is rotated until the cleaning tank is located above it, and at this time, the material can be pushed by rotating the first auger.

[0041] 3. The present invention arranges a structure for spreading glutinous rice in the freezer. During the freezing process of glutinous rice, the spreading motor is controlled to drive the screw to rotate, and the slider moves along the axial direction of the screw, and drives the drying rake to move, so that the glutinous rice in the tray is spread out. The glutinous rice is pushed by the drying rake and falls on each layer of the tray in sequence. The initial amount of glutinous rice taken is less than the amount of glutinous rice that the tray can carry after the above-mentioned flattening. At the same time, the glutinous rice presents wavy stripes on the tray, thereby increasing the refrigeration area.

[0042] 4. The present invention controls the feeding motor to drive the second auger to rotate, thereby lifting the glutinous rice that has been frozen for the first time to the feeding tube. Before this operation, the switching motor is controlled to drive the handle to rotate, so that the axis of the barrel above the slide rotates. During the process, the transmission column slides relative to the inner wall of the slide, and the slide drives the switching barrel to rotate. The feeding tube flips until it is above the grinding box, so that the lifted material can enter the grinding box, so as to facilitate the feeding of the first grinding and multiple grinding; and if the feeding tube is flipped to the top of the delivery tube through the above operation before this operation, the material can be thrown into the cleaning tank, so as to facilitate the feeding of the first soaking and the second soaking, so as to achieve multiple uses of one machine.

[0043] 5. The present invention provides a screen to facilitate screening of the ground glutinous rice crumbs, screens out the crumbs that do not meet the requirements and re-grinds them, thereby improving the screening effect, and provides a slow-down platform on the surface of the screen to slow down the speed of the crumbs. In order to avoid material jamming, a cam that can rotate with the grinding roller is also provided, so that the pad can be pressed periodically, and the second spring is used to make the friction block reciprocate up and down, and the rough surface rubs against the friction plate to generate shaking, so as to assist material discharge and avoid material jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The present invention will be further described below in conjunction with the accompanying drawings.

[0045] Figure 1 The figure is a schematic diagram of the process of grinding glutinous rice flour for producing traditional maltose according to the present invention;

[0046] Figure 2 It is a schematic diagram of the structure of the first viewing angle of the whole present invention;

[0047] Figure 3 A second perspective structural schematic diagram of the present invention as a whole;

[0048] Figure 4 This is one of the cross-sectional structural schematic diagrams of the present invention (the feed pipe is located above the grinding box, the feed port and the discharge port on the filter cartridge are both facing downward, and the tray is in an inclined feed state);

[0049] Figure 5 This is the second schematic cross-sectional view of the present invention (the feed pipe is above the delivery pipe, the feed port and the discharge port on the filter cartridge are both facing upward, and the tray is in a horizontal state);

[0050] Figure 6 It is a schematic diagram of the internal structure of the freezer of the present invention;

[0051] Figure 7 It is a structural schematic diagram of the pallet of the present invention;

[0052] Figure 8 It is a schematic diagram of the internal structure of the grinding box of the present invention;

[0053] Fig. 9 It is a schematic cross-sectional structural diagram of the lower hopper of the present invention;

[0054] Fig.10 This is a schematic diagram of the internal structure of the cleaning discharge pipe of the present invention;

[0055] Fig.11 This is a schematic diagram of the structure of the cleaning discharge pipe of the present invention;

[0056] Fig.12 It is a structural schematic diagram of the feeding component of the present invention;

[0057] Fig.13 It is a schematic diagram of the installation structure of the moisture-absorbing cloth of the present invention;

[0058] Fig.14 For the present invention Figure 4 Enlarged view of point A in the middle;

[0059] Fig.15 For the present invention Figure 8 Enlarged view of point B in the middle;

[0060] Fig.16 For the present invention Figure 8 Enlarged view of point C in the middle;

[0061] Fig.17 For the present invention Fig.11 Enlarged view of point D in the middle;

[0062] Fig.18 For the present invention Fig.12 Enlarged view of point E in the middle.

[0063] In the figure: 1, first skid-mounted frame; 11, transfer box; 12, transfer pipe; 2, second skid-mounted frame; 21, grinding box; 22, guide plate; 23, grinding roller; 24, grinding motor; 25, first slide bar; 26, brush; 27, fixing plate; 28, first spring; 29, lower hopper; 210, limit block; 31, cleaning tank; 32, hollow shaft; 33, filter cartridge; 34, first auger; 35, push motor; 3 6. Cleaning motor; 37. Notch; 38. Cleaning tank; 39. First slide rail; 310. Friction ring; 40. Blocking plate; 41. Discharge port; 42. Feed port; 43. Dispensing pipe; 44. Cleaning discharge pipe; 45. Sleeve; 46. Filling pipe; 47. Drain pipe; 51. Freezer; 52. Tray; 53. Electric push rod; 54. Lifting frame; 55. Support rod; 56. Bracket; 57. Screw rod; 58. Slide block; 59, drying rake; 61, fixed block; 62, second slide rail; 63, rack; 64, pad; 65, gear; 66, top block; 67, frozen discharge pipe; 68, water receiving box; 69, spreading motor; 71, servo module; 72, linkage rod; 73, traction block; 74, moisture-absorbing cloth; 75, partition; 76, strip groove; 77, squeeze water plate; 78, squeeze water groove; 81, feeding bin; 82, support rod; 8 3. Transmission box; 84. Feeding barrel; 85. Second auger; 86. Feeding motor; 87. Support plate; 88. Switching motor; 89. Switching barrel; 810. Feeding pipe; 811. Crank handle; 812. Slide; 813. Transmission column; 91. Screen; 92. Retarder; 93. Mounting plate; 94. Second slide bar; 95. Friction block; 96. Friction plate; 97. Pad; 98. Cam; 99. Second spring. DETAILED DESCRIPTION

[0064] The present invention is further described in detail below in conjunction with embodiments:

[0065] Example 1

[0066] The invention provides a glutinous rice flour grinding process for producing maltose according to an ancient method, comprising the following steps:

[0067] S1, take an appropriate amount of glutinous rice and put it into the cleaning part, remove impurities in the glutinous rice by multiple washings, drain part of the rice washing water after the last washing until the remaining water just submerges the glutinous rice, and let it stand and soak for 30 to 50 minutes;

[0068] In the initial stage of soaking, the water content increases with time. The water content of glutinous rice grains increases rapidly when the soaking time is 0min to 45min. The water content of glutinous rice grains at different soaking times is significantly different. The increase in water content slows down after 45min of soaking. The initial soaking time is selected as 50min to allow the glutinous rice to quickly absorb some water.

[0069] S2, drain and absorb the moisture on the surface of the glutinous rice, put it into a freezing part and freeze it at -35°C for the first time, the freezing time is 30 to 40 minutes, and the surface of the glutinous rice is dried after the freezing is completed;

[0070] The glutinous rice absorbs water and is quickly frozen, which causes long and thin cracks on the surface. Since the glutinous rice grains that are soaked and absorbed water are exposed to low temperature during the freezing process, the free water in the glutinous rice grains forms ice crystals that squeeze the internal structure of the glutinous rice grains. After drying, the rice grains lose moisture on the surface faster and the inside loses moisture slowly, resulting in uneven shrinkage with large shrinkage on the surface and small shrinkage on the inside, which causes cracks and fissures.

[0071] S3, soaking the glutinous rice again for 70 to 90 minutes, and shaking the glutinous rice intermittently during the soaking process;

[0072] Since cracks have formed on the surface of the glutinous rice, soaking it again can allow water to quickly penetrate into the interior of the glutinous rice through the cracks, thereby improving the soaking effect and allowing the glutinous rice to absorb water.

[0073] S4, putting the glutinous rice soaked in step S3 into the freezing part again, and freezing it again in a -35°C environment for 10 to 20 minutes;

[0074] This creates cracks inside the glutinous rice, making it easier to grind.

[0075] S5, thawing the glutinous rice, and drying the glutinous rice until surface moisture is removed;

[0076] Glutinous rice with a small amount of moisture in it is prone to form clumps when ground. Drying can reduce the clumping of glutinous rice during the grinding process.

[0077] S6, putting glutinous rice into a grinding part and grinding it to obtain glutinous rice flour.

[0078] During the grinding process of step S6, the broken rice with mesh size that does not meet the requirements is screened out and sent back to the grinding part through the feeding part for re-grinding until all the glutinous rice is ground into glutinous rice flour with mesh size that meets the requirements;

[0079] Since the glutinous rice is soaked and frozen, it is easy to form lumps after grinding. The ground glutinous rice crumbs are screened to screen out the lumps that do not meet the mesh requirements and re-load them. The loading process can be dried again and repeated grinding.

[0080] The water used for secondary soaking of glutinous rice in step S3 is acidic electrolyzed water;

[0081] After treatment with acidic electrolyzed water, the peak viscosity of rice noodles increased and the minimum viscosity decreased, and the hardness and chewiness of fresh wet rice noodles were significantly improved. Therefore, the addition of electrolyzed water can promote the gelatinization of rice noodles and improve the texture quality of fresh wet rice noodles.

[0082] Example 2

[0083] like Figure 5 and Fig.14As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the cleaning component includes a first skid-mounted frame 1 and a cleaning tank 31, the cleaning tank 31 is fixedly connected to the top of the first skid-mounted frame 1, two filling pipes 46 are arranged on the top of the cleaning tank 31, and electric valves are arranged inside the filling pipes 46. The filling pipes 46 are connected to the external water supply pipeline, and the water provided by one of the water supply pipelines is acidic electrolyzed water. A sewage pipe 47 is arranged at the bottom of the cleaning tank 31, and an electric valve is arranged inside the sewage pipe 47. The inner wall of the cleaning tank 31 is symmetrically rotatably connected on both sides. There are hollow shafts 32, and a filter cartridge 33 is fixedly connected between the ends of the two hollow shafts 32 that are close to each other. A cleaning motor 36 is fixedly connected to the top of the first skid-mounted frame 1, and one end of one of the hollow shafts 32 extends to the outside of the cleaning tank 31 and is fixedly connected to the output end of the cleaning motor 36; a first auger 34 is rotatably connected between the two sides of the inner wall of the filter cartridge 33, and the blades of the first auger 34 are in contact with the inner wall of the filter cartridge 33. A push motor 35 is fixedly connected to one side of the cleaning tank 31, and the output end of the push motor 35 extends to the inside of the filter cartridge 33 through the hollow shaft 32 and is fixedly connected to the first One end of the central axis of an auger 34 is fixedly connected; a notch 37 is provided on the side wall of the filter cartridge 33, and a cleaning tank 38 is fixedly connected to the side wall of the filter cartridge 33 at the position where the notch 37 is located, and first slide rails 39 are symmetrically fixedly connected to the two sides of the inner wall of the cleaning tank 38, and a blocking plate 40 is slidably connected between the outer sides of the two first slide rails 39, and the blocking plate 40 is configured to be an arc plate and match the shape of the notch 37, and the side wall of the filter cartridge 33 is symmetrically provided with a feed port 42 and a discharge port 41 at the same axial position, and a sleeve 45 is symmetrically sleeved on the outer side of the filter cartridge 33, and the sleeve 45 and the filter The cylinder 33 is rotatably connected, and a delivery pipe 43 is fixedly connected to the side wall of one sleeve 45, and the top end of the delivery pipe 43 extends to the top of the cleaning tank 31, and a cleaning discharge pipe 44 is fixedly connected to the side wall of the other sleeve 45, and the bottom end of the cleaning discharge pipe 44 extends to the bottom of the cleaning tank 31, and the delivery pipe 43 and the cleaning discharge pipe 44 are both fixedly connected to the cleaning tank 31; both end surfaces of the filter cylinder 33 are fixedly connected to friction rings 310 with rough surfaces, and both sides of the inner wall of the cleaning tank 31 are provided with rough surfaces, and the rough surfaces of the cleaning tank 31 are in contact with the friction ring 310.

[0084] In this embodiment, water is injected into the cleaning tank 31 through the filling pipe 46, and the water injection amount does not exceed the bottom height of the filter cartridge 33. After the water injection is completed, the filter cartridge 33 is controlled to flip back and forth, and the flipping amplitude in each direction does not exceed 45°. During the flipping process, the friction ring 310 slides relative to the rough surface on the inner wall of the cleaning tank 31 and shakes continuously, so that the glutinous rice tumbles in the water and vibrates at a high frequency, thereby achieving the cleaning of the glutinous rice. Accompanied by the above-mentioned shaking process, the glutinous rice is gathered in the cleaning tank 38 and spread out. After the cleaning is completed, the feed port 42 and the discharge port 41 are kept facing upward and the drain pipe 47 is opened to discharge the rice washing water. After cleaning, fine impurities can pass through the filter cartridge 33 and be discharged.

[0085] Example 3

[0086] like Figure 5 , Figure 6 and Figure 7 As shown, on the basis of Example 2, the present invention provides a technical solution: preferably, the freezing component includes a freezer 51 fixedly connected to the inside of the first skid-mounted frame 1, and a compressor for providing a cold source to the freezer 51 is also fixedly installed inside the first skid-mounted frame 1, and a cleaning discharge pipe 44 extends through the top of the freezer 51 to the inside of the freezer 51, and a freezing discharge pipe 67 is arranged at the bottom of one side of the freezer 51, and an electric push rod 53 is fixedly connected to the top of the freezer 51, and the output end of the electric push rod 53 extends to the inside of the freezer 51 and is fixedly connected to a lifting frame 54, and a plurality of trays 52 are staggered and hinged on both sides of the inner wall of the freezer 51, and the trays 5 2 is provided with ventilation holes, the bottom of the tray 52 is fixedly connected with a bracket 56, one side of the lifting frame 54 is fixedly connected with a support rod 55, and the support rod 55 is slidably connected to the inner wall of the bracket 56; a screw rod 57 is rotatably connected between the inner walls of the freezer 51, one side of the freezer 51 is fixedly connected with a spreading motor 69, the output end of the spreading motor 69 extends to the inside of the freezer 51 and is fixedly connected to one end of the screw rod 57, the outer side of the screw rod 57 is threadedly connected with a slider 58, and one side of the slider 58 is provided with a drying rake 59 equal to the number of the trays 52, a water receiving box 68 is placed at the bottom of the inner wall of the freezer 51, and an electric valve is provided inside the freezing discharge pipe 67.

[0087] After glutinous rice is sent into freezer 51, it is centered on forming rice pile with cleaning discharge pipe 44 directly below. If directly freezing with this form, not only comprehensive freezing treatment can not be realized, glutinous rice freezing is uneven, and glutinous rice frozen block is formed easily.

[0088] In this embodiment, while the glutinous rice falls into the freezer 51, the spreading motor 69 is controlled to work, driving the screw rod 57 to rotate, and the slider 58 moves along the axial direction of the screw rod 57, and drives the drying rake 59 to move, so as to spread the glutinous rice in the tray 52. ​​The glutinous rice is pushed by the drying rake 59 and falls on each layer of the tray 52 in sequence. The initial amount of glutinous rice taken is less than the amount of glutinous rice that the tray 52 can carry after the above-mentioned flattening. At the same time, the glutinous rice presents wavy stripes on the tray 52, thereby increasing the refrigeration area.

[0089] like Figure 4 , Figure 5 and Figure 6As shown, preferably, the drying rake 59 is rotatably connected to the side wall of the slider 58 through a damping shaft, the central axis of the drying rake 59 extends to the other side of the slider 58 and is fixedly connected to a transmission gear 65, one side of the slider 58 is fixedly connected to a fixed block 61 corresponding to the tray 52, the bottom of the fixed block 61 is slidably connected to a second slide rail 62, the bottom of the second slide rail 62 is fixedly connected to a rack 63, the rack 63 is meshed with the transmission gear 65, both ends of the rack 63 are fixedly connected to pads 64, and both sides of the inner wall of the freezer 51 are fixedly connected to top blocks 66 used in conjunction with the pads 64.

[0090] Since the glutinous rice is spread out on the tray 52 and is assisted by the drying rake 59 to be flattened, and the drying rake 59 moves in a reciprocating manner, the glutinous rice will be pushed into a pile during the movement from the end with the opening to the end without the opening of the tray 52;

[0091] In this embodiment, the drying rake 59 is set to a reversible structure. When the slider 58 moves until the cushion block 64 contacts the top block 66, the rack 63 is pushed as the slider 58 continues to move, thereby moving relative to the slider 58, and driving the transmission gear 65 to rotate, and driving the drying rake 59 to flip until it is at the end of the slider 58 stroke (the flipping amplitude is 90°). Specifically: the tray 52 is a carrier with an opening on one side. When the drying rake 59 is at the end with the opening, it is in a horizontal state. When the drying rake 59 is at the end without the opening of the tray 52, it is in a vertical state. The drying rake 59 can move from the side without the opening to the side with the opening in a vertical state (with teeth facing downward), so as to spread the glutinous rice from the opening to the next layer of the tray 52, and when it moves from the side with the opening to the side without the opening, it is in a horizontal state. In this process, the drying rake 59 does not contact the glutinous rice, thereby avoiding pushing the glutinous rice to the side without the opening to cause accumulation or even overflow. The inside of the freezer 51 is cooled until cracks appear on the surface of the glutinous rice.

[0092] Example 4

[0093] like Fig.11 , Fig.13 and Fig.17As shown, on the basis of Example 3, the present invention provides a technical solution: preferably, installation openings are provided on both sides of the cleaning discharge pipe 44, and partitions 75 are fixedly connected inside the installation openings, and a plurality of strip grooves 76 are equidistantly provided on the partitions 75, and water squeezing plates 77 are symmetrically fixedly connected on both sides of the cleaning discharge pipe 44, and a plurality of water squeezing grooves 78 are provided on the water squeezing plates 77, and servo modules 71 are fixedly connected to the two opposite outer walls of the cleaning discharge pipe 44, and a linkage rod 72 is fixedly connected to the movable end of the servo module 71, and traction blocks 73 are fixedly connected between the ends of the linkage rod 72, and moisture-absorbing cloths 74 equal to the number of strip grooves 76 are fixedly connected between the two traction blocks 73, and the moisture-absorbing cloths 74, the strip grooves 76 and the water squeezing grooves 78 correspond to each other one by one, and the moisture-absorbing cloths 74 pass through the strip grooves 76 and the water squeezing grooves 78 at the same time, and the moisture-absorbing cloths 74 are tightly fitted to the inner wall of the water squeezing grooves 78.

[0094] Since the soaked glutinous rice carries a lot of water, even after being drained, there will still be a water film on the surface of the glutinous rice that cannot flow, and freezing will easily form an ice layer on the surface of the glutinous rice;

[0095] In the present embodiment, when the glutinous rice passes through the cleaning discharge pipe 44, the servo module 71 is controlled to work, driving the linkage rod 72 to make reciprocating motion, thereby making the traction block 73 and the moisture absorbent cloth 74 make reciprocating motion. In the above process, the glutinous rice passes through the gap between the moisture absorbent cloths 74 so that the moisture is absorbed by the moisture absorbent cloths 74, and the moisture absorbent cloths 74 carry the moisture to the outside of the cleaning discharge pipe 44 along with the above process and are squeezed out when passing through the water squeezing trough 78, thereby completing the wiping of the glutinous rice and falling onto the tray 52, thereby reducing the residual moisture on the surface of the glutinous rice, thereby preventing the glutinous rice from freezing and agglomerating.

[0096] like Figure 3 and Fig.12As shown, preferably, the feeding component includes a feeding bin 81, a plurality of support rods 82 are fixedly connected to the top of the feeding bin 81, a transmission box 83 is fixedly connected between the tops of the plurality of support rods 82, a feeding cylinder 84 is fixedly connected to the top of the feeding bin 81, a switching cylinder 89 is rotatably connected between the top of the feeding cylinder 84 and the bottom of the transmission box 83, a feeding pipe 810 is arranged on the switching cylinder 89, and the feeding pipe 810 is inclined, a second auger 85 is rotatably connected between the bottom of the inner wall of the feeding bin 81 and the bottom of the transmission box 83, a feeding motor 86 is fixedly connected to the top of the transmission box 83, and the top of the central axis of the second auger 85 and The output ends of the feeding motor 86 extend to the interior of the transmission box 83 and are connected through belts and pulleys; the outer wall of the support rod 82 is fixedly connected to a support plate 87, the bottom of the support plate 87 is fixedly connected to a switching motor 88, the output end of the switching motor 88 extends to the top of the support plate 87 and is fixedly connected to a crank 811, and a transmission column 813 is provided at the end thereof, the outer wall of the switching cylinder 89 is fixedly connected to a slide 812, and the slide 812 is slidably connected to the transmission column 813; a heating pipe is wrapped around the outside of the feeding cylinder 84, and the heating pipe is provided with a heat source provided by an external heating device, and a plurality of ventilation holes are provided on the side wall of the feeding cylinder 84.

[0097] In this embodiment, the feeding motor 86 is controlled to work, driving the second auger 85 to rotate, so that the glutinous rice that has been frozen for the first time is lifted to the feeding tube 810. Before this operation, the switching motor 88 is controlled to work, driving the crank 811 to rotate, so that the axis of the barrel 84 above the slide 812 rotates, and the transmission column 813 slides relative to the inner wall of the slide 812 during the process. The slide 812 drives the switching barrel 89 to rotate, and the feeding tube 810 is flipped until it is above the grinding box 21, so that the lifted material can enter the grinding box 21, so as to facilitate the feeding of the first grinding and multiple grinding; and if the feeding tube 810 is flipped to the top of the delivery tube 43 by the above operation before this operation, the material can be thrown into the cleaning tank 31, so as to facilitate the feeding of the first soaking and the second soaking, so as to achieve multiple uses of one machine.

[0098] The heat tracing pipe can heat and dry the material lifted in the upper barrel 84, and the water vapor is discharged from the ventilation holes.

[0099] Example 5

[0100] like Figure 8 and Fig.18As shown, on the basis of Example 4, the present invention provides a technical solution: preferably, the grinding component includes a second skid-mounted frame 2 and a grinding box 21, the grinding box 21 is fixedly connected to the top of the second skid-mounted frame 2, and two grinding rollers 23 used in conjunction are rotatably connected between the two sides of the inner wall of the grinding box 21, one end of the central axis of the two grinding rollers 23 extends to the outside of the grinding box 21 and is transmission-connected through mutually meshing gears 65, a grinding motor 24 is fixedly installed on the outer wall of the grinding box 21, one end of the central axis of one of the grinding rollers 23 away from the gear 65 is transmission-connected to the output end of the grinding motor 24 through a reducer, and the grinding box 21 Guide plates 22 are symmetrically fixedly connected to both sides of the inner wall, and the guide plates 22 are arranged at an angle; a fixed plate 27 is fixedly connected between the two sides of the inner wall of the grinding box 21, and two first sliding rods 25 are symmetrically slidably connected to one side of the fixed plate 27, and one end of the first sliding rod 25 is fixedly connected to the limiting block 210, and the ends of the two first sliding rods 25 away from the limiting head extend to the other side of the fixed plate 27 and are fixedly connected with a brush 26, and the bristle part of the brush 26 is in contact with the grinding roller 23, and a first spring 28 is sleeved on the outside of the first sliding rod 25 and between the fixed plate 27 and the brush 26; a lower hopper 29 is arranged at the bottom of the grinding box 21.

[0101] Since the glutinous rice has been frozen and soaked, it has absorbed water inside, so it will clump and stick together during the grinding process, that is, the glutinous rice will gather into a new clumping state after rolling and partially adhere to the grinding roller 23;

[0102] In this embodiment, a brush 26 is provided under the grinding roller 23 to clean the grinding roller 23 during the grinding process, thereby brushing off the adhered lumps, thereby avoiding the situation where the lumps adhere to the grinding roller 23.

[0103] like Figure 8 and Fig.16As shown, preferably, a through groove is provided at the bottom of the lower hopper 29, a screen 91 is fixedly connected between the inner walls of the through groove, the top of the screen 91 is flush with the bottom of the inner wall of the lower hopper 29, the aperture of the exhaust hole is smaller than the aperture of the screen 91, a plurality of retarder platforms 92 are fixedly connected to the bottom of the inner wall of the lower hopper 29, the end face of the retarder platforms 92 is semi-elliptical, friction plates 96 are connected to the two sides of the lower hopper 29 by screws, a mounting plate 93 is fixedly connected to the top of the inner side of the second skid mounting frame 2, two second slide bars 94 are slidably connected to the top of the mounting plate 93, a pad 97 is fixedly connected between the tops of the second slide bars 94, and the bottoms of the second slide bars 94 extend to A friction block 95 is connected to the mounting plate 93 by screws, and the friction block 95 and the friction plate 96 are in contact with each other and the contacting side is set to a rough surface; a second spring 99 is sleeved on the outside of the second slide bar 94 and located between the pad 97 and the mounting plate 93; a cam 98 is fixedly connected to one end of the central axis of the two grinding rollers 23 close to the gear 65, and the cam 98 is in contact with the pad 97; a transfer box 11 is fixedly connected to the middle position of the inner side of the second skid-mounted frame 2, and a transfer pipe 12 is set at the bottom of the transfer box 11, and the bottom end of the transfer pipe 12 extends to the inside of the feeding bin 81, and the bottom of the freezing discharge pipe 67 extends to the inside of the feeding bin 81;

[0104] Since the glutinous rice has been frozen and soaked, it has absorbed too much water, so it will clump together during the grinding process, and some rice grains will not be completely crushed during the grinding process. If it is directly output, the quality of the glutinous rice grinding will be affected;

[0105] In this embodiment, some lumps and particles that do not meet the mesh number requirements are generated, and the ground particles fall downward through the lower hopper 29. The powder that meets the mesh number requirements directly passes through the screen 91 and falls downward. A collecting container is placed under the screen 91 to receive the ground glutinous rice flour. The materials that do not meet the mesh number requirements slide along the lower hopper 29 to the transfer box 11. The bottom of the inner wall of the transfer box 11 is set to be an inclined surface with the transfer pipe 12 as the lowest position. The materials in the transfer box 11 all fall back into the feeding bin 81 through the transfer pipe 12.

[0106] In order to avoid material jamming, the lower end of the lower hopper 29 must have a certain slope. If the slope is too large, some powders that meet the mesh requirements will slide directly along the screen 91 (without passing through the screen 91), thereby affecting the screening effect.

[0107] Therefore, in this embodiment, a deceleration platform 92 is also provided on the surface of the screen 91, which can slow down the speed of the crushed material sliding down, and in order to avoid material jamming, a cam 98 that can rotate along with the grinding roller 23 is also provided, so that the pad 97 can be pressed periodically, and the second spring 99 is cooperated to make the friction block 95 reciprocate up and down, and the rough surface and the friction plate 96 are rubbed relative to each other to generate shaking, so as to assist material discharge and avoid material jamming.

[0108] The working principle of the glutinous rice flour grinding process for the production of traditional malt sugar is described in detail below.

[0109] like Figure 1-Figure 18 As shown, by controlling the cleaning motor 36 to work, the filter cartridge 33 is turned over to the point where the feed port 42 and the discharge port 41 are both facing upwards. At this time, the feed port 42 is facing the delivery pipe 43 on the sleeve 45, and the discharge port 41 and the cleaning discharge pipe 44 are facing the physical part of the sleeve 45, so the glutinous rice and water will not seep out from the cleaning discharge pipe 44. In this state, the notch 37 and the cleaning tank 38 are facing downwards. Put the glutinous rice into the cleaning tank 31 through the delivery pipe 43 (the delivery can be achieved by the feeding component). During the pouring process, the push motor 35 is controlled to work to assist the glutinous rice to be transported along the axial direction of the filter cartridge 33. When the glutinous rice is transported to the position of the notch 37, it falls into the cleaning tank 38, and is pushed out with the subsequent glutinous rice added to the position above the notch 37. The amount of glutinous rice processed at a single time does not exceed the volume inside the cleaning tank 38.

[0110] Water is injected into the cleaning tank 31 through the filling pipe 46, and the water injection amount does not exceed the bottom height of the filter cartridge 33. After the water injection is completed, the filter cartridge 33 is controlled to flip back and forth, and the flipping amplitude in each direction does not exceed 45°. During the flipping process, the friction ring 310 slides and shakes continuously relative to the rough surface on the inner wall of the cleaning tank 31, so that the glutinous rice tumbles in the water and vibrates at a high frequency, thereby achieving the cleaning of the glutinous rice. Accompanied by the above-mentioned shaking process, the glutinous rice is gathered in the cleaning tank 38 and spread out. After the cleaning is completed, the feed port 42 and the discharge port 41 are kept facing upwards and the drain pipe 47 is opened to discharge the rice washing water. After cleaning, fine impurities can pass through the filter cartridge 33 and be discharged.

[0111] Repeat the above rice washing operation three times, and after the last rice washing, the rice washing water is not completely drained, and the water higher than the glutinous rice is retained and soaked. After the soaking is completed, the electric valve in the sewage pipe 47 is controlled to open to drain the remaining rice washing water, and the water is left to stand for a period of time to drain. During the drainage process, the filter cartridge 33 can be turned back and forth by the same operation as the rice washing process to throw out the water.

[0112] After the above-mentioned draining operation is completed, the cleaning motor 36 is controlled to work until the feed port 42 and the discharge port 41 are both facing downwards. At this time, the discharge port 41 is directly opposite to the cleaning discharge pipe 44, and the cleaning tank 38 is directly above the filter cartridge 33 and faces downwards. During the upward flipping process, the glutinous rice falls into the filter cartridge 33 due to shaking, and the blocking plate 40 moves downward to cover the notch 37, so that the blocking plate 40 and the filter cartridge 33 together form a cylinder. By controlling the push motor 35 to work, the first auger 34 rotates, and the glutinous rice is pushed along the axial direction of the filter cartridge 33 to the discharge port 41, and falls into the freezer 51 through the cleaning discharge pipe 44.

[0113] When the glutinous rice passes through the cleaning discharge pipe 44, the servo module 71 is controlled to work, driving the linkage rod 72 to make reciprocating motion, thereby making the traction block 73 and the moisture absorbent cloth 74 make reciprocating motion. In the above process, the glutinous rice passes through the gap between the moisture absorbent cloths 74 so that the moisture is absorbed by the moisture absorbent cloths 74, and the moisture absorbent cloths 74 carry the moisture to the outside of the cleaning discharge pipe 44 along with the above process and are squeezed out when passing through the water squeezing trough 78, thereby completing the wiping of the glutinous rice and falling onto the tray 52.

[0114] In the process of the glutinous rice falling into the freezer 51, the spreading motor 69 is controlled to work, driving the screw rod 57 to rotate, and the slider 58 moves along the axial direction of the screw rod 57, and drives the drying rake 59 to move, so that the glutinous rice in the tray 52 is spread out, and the glutinous rice is pushed by the drying rake 59 and falls on each layer of the tray 52 in sequence. The initial amount of glutinous rice taken is less than the amount of glutinous rice that the tray 52 can carry after the above-mentioned flat spreading, and at the same time, the glutinous rice presents wavy stripes on the tray 52, thereby increasing the refrigeration area; the slider 58 moves until the cushion block 64 contacts the top block 66, and then the slider 58 continues to move so that the rack 63 is pushed to move relative to the slider 58, and drives the transmission gear 65 to rotate. The drying rake 59 is moved and driven to flip until it is at the end of the travel of the slider 58 (the flipping amplitude is 90°). Specifically, the tray 52 is a carrier with an opening on one side. The drying rake 59 is in a horizontal state when it is at the end with the opening, and in a vertical state when it is at the end without the opening of the tray 52. ​​The drying rake 59 can move in a vertical state (teeth facing downward) from the side without the opening to the side with the opening, thereby spreading the glutinous rice from the opening to the next layer of the tray 52, and is in a horizontal state when it moves from the side with the opening to the side without the opening. In this process, the drying rake 59 does not contact the glutinous rice, thereby avoiding pushing the glutinous rice to the side without the opening to cause accumulation or even overflow. The interior of the freezer 51 is refrigerated for quick freezing.

[0115] After the first freezing process is completed (in this state, the material pipe 810 is above the delivery pipe 43, and the tray 52 is in a horizontal state during the freezing process due to the support of the lifting frame 54), the electric push rod 53 is controlled to extend to push the lifting frame 54 downward, and the support rod 55 slides relative to the inner wall of the bracket 56, and the middle support point of the tray 52 is lowered, so that the side of the tray 52 with the opening is tilted downward, so that the glutinous rice slides down layer by layer. The process can control the electric push rod 53 to extend and retract frequently to make the tray 52 shake, and the glutinous rice is discharged from the freezing discharge pipe 67 to the feeding bin 81 along with the shaking (this process controls the electric valve to open).

[0116] By controlling the feeding motor 86 to work, the second auger 85 is driven to rotate slowly to slowly lift the glutinous rice. During the process, the external heating equipment provides a heat source to the heating pipe to dry the surface of the rice grains and generate cracks, so that the glutinous rice that has been initially frozen is lifted to the discharge pipe 810. When the cleaning tank 31 is in a state before the initial cleaning, the glutinous rice is put into the cleaning tank 31 again from the delivery pipe 43, and the glutinous rice is pushed into the cleaning tank 38 and water is injected until the glutinous rice is completely immersed, so that the water can enter the glutinous rice from the cracks generated after the freezing. After the soaking is completed, the water is drained, the soaked glutinous rice is drained and wiped, and then sent to the freezer 51 for secondary freezing. After the freezing is completed, it is discharged to the feeding bin 81 (the above process is the same as the initial cleaning and initial freezing process operations, so it is not described in detail. The difference between the second operation and the first operation is that there is no cleaning process in the second operation).

[0117] By controlling the switching motor 88 to work, the crank 811 is driven to rotate, so that the axis of the barrel 84 above the slide 812 rotates. During the process, the transmission column 813 slides relative to the inner wall of the slide 812, and the slide 812 drives the switching barrel 89 to rotate, and the discharge pipe 810 is turned over until it is above the grinding box 21; the feeding motor 86 is controlled to work, and the second auger 85 is driven to rotate, so that the secondary frozen glutinous rice is lifted to the discharge pipe 810 and falls into the grinding box 21, and the glutinous rice passes through the guide plate 22. The glutinous rice is gathered toward the middle, and the grinding motor 24 is controlled to work to drive the two grinding rollers 23 to rotate, so that the glutinous rice is ground into powder and falls downward to the lower hopper 29; since the glutinous rice has been frozen and soaked, its interior has absorbed too much water, so it will clump and adhere during the grinding process, that is, the glutinous rice is gathered into a new clumping state after being crushed and partially adhered to the grinding roller 23, so a brush 26 is arranged under the grinding roller 23 to clean the grinding roller 23 during the grinding process, thereby brushing off the adhered clumps.

[0118] After the above-mentioned grinding, due to the generation of some lumps and particles that do not meet the mesh number requirements, the ground particles fall downward through the lower hopper 29, and the powder that meets the mesh number requirements directly passes through the screen 91 and falls downward. A collecting container is placed below the screen 91 to facilitate receiving the ground glutinous rice flour; and the materials that do not meet the mesh number requirements slide along the lower hopper 29 to the transfer box 11. The bottom of the inner wall of the transfer box 11 is set to be an inclined surface with the transfer pipe 12 as the lowest position. The materials in the transfer box 11 all fall back into the feeding bin 81 through the transfer pipe 12, so that they are easily lifted to the grinding box 21 for re-grinding until the ground glutinous rice flour meets the mesh number requirements.

[0119] The corresponding maltose preparation process is as follows: the ground glutinous rice flour is mixed with water according to the weight ratio to obtain the glutinous rice slurry of the required concentration, a small amount of bottom water is added to the boiling tank, and then the glutinous rice slurry is slowly poured in, heated to 35-90°C, and then the agitator is started, and it is kept running, and then the valve at the bottom of the slurry storage barrel is opened to make the adjusted slurry evenly dispersed into the hot water in the liquefaction tank in many thin streams. At this time, the product temperature should be kept between 85 and 90°C to ensure smooth gelatinization and liquefaction (if the temperature is lower than 85°C, the viscosity is high, and the feeding speed should be slowed down. When the temperature in the tank rises to nearly 90°C, the feeding speed should be appropriately accelerated). After the feeding is completed, this temperature is maintained for 10-15 minutes, and it is tested with iodine solution until it is no longer blue-purple and no color is developed. The sugar solution that flows out at first is somewhat turbid, and needs to be returned to the pressure tank or high-level barrel for re-filtering, which can improve the quality of maltose. After filtering, hot water is passed into the filter press. The washing water with high concentration in the sugar washing tank can be concentrated together with the sugar juice, and the washing water with low concentration is used as the water for the next batch of slurry mixing. After filtering, the residue is discharged. The sugar juice after filtering is transported to the concentration tank and temporarily heated by a copper snake. When the temperature rises to 90-95℃, the protein in the sugar juice coagulates and impurities are suspended on the liquid surface, which must be removed first, and then heated and boiled. If there is foam overflow, a defoamer such as stearic acid or oil should be added in time, and a decolorizer-sodium nitrite should be added in an amount of 0.02%. After adding the decolorizer, it needs to be boiled for a period of time, and the decolorization is carried out while the concentration is carried out, until it reaches 25°Be. Then send the liquefied mash through the cooling tower, spray cool it and add it to the saccharification tank. It can also be cooled by vacuum, coil or interlayer. When it is cooled to below 65℃, add 1% to 2% barley maltose syrup or 1% to 2% bran to the saccharification tank and stir evenly. Saccharify for 3 hours at 60 to 62℃. Under reduced pressure and low temperature, the syrup that has been initially concentrated to 25°Be is concentrated in a vacuum evaporator at a vacuum degree of about 80kPa and a temperature of about 70℃. The concentration temperature is low, and although the concentration time is long, it can also reduce the production of pigments and make the maltose better in color. The finished product is obtained by vacuum concentration to 42°Be (20C).

[0120] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A glutinous rice flour grinding process for producing traditional maltose, characterized in that: The following steps are involved: S1, take an appropriate amount of glutinous rice and put it into the cleaning part, remove impurities in the glutinous rice by multiple washings, drain part of the rice washing water after the last washing until the remaining water just submerges the glutinous rice, and let it stand and soak for 30 to 50 minutes; S2, drain and absorb the moisture on the surface of the glutinous rice, put it into a freezing part and freeze it at -35°C for the first time, the freezing time is 30 to 40 minutes, and the surface of the glutinous rice is dried after the freezing is completed; S3, soaking the glutinous rice again for 70 to 90 minutes, and shaking the glutinous rice intermittently during the soaking process; S4, putting the glutinous rice soaked in step S3 into the freezing part again, and freezing it again in a -35°C environment for 10 to 20 minutes; S5, thawing the glutinous rice, and drying the glutinous rice until surface moisture is removed; S6, putting glutinous rice into a grinding part and grinding it to obtain glutinous rice flour.

2. The glutinous rice flour grinding process for producing traditional maltose according to claim 1, characterized in that: During the grinding process of step S6, broken rice with mesh size that does not meet the requirements is screened out and sent back to the grinding part through the feeding part for re-grinding until all glutinous rice is ground into glutinous rice flour with mesh size that meets the requirements.

3. The glutinous rice flour grinding process for producing traditional maltose according to claim 2, characterized in that: The water used for secondary soaking of glutinous rice in step S3 is acidic electrolyzed water.

4. The glutinous rice flour grinding process for producing traditional maltose according to claim 3, characterized in that: The cleaning component comprises a first skid-mounted frame (1) and a cleaning tank (31), wherein the cleaning tank (31) is fixedly connected to the top of the first skid-mounted frame (1), two filling pipes (46) are arranged on the top of the cleaning tank (31), each of the filling pipes (46) is provided with an electric valve, and each of the filling pipes (46) is communicated with an external water supply pipeline, a sewage pipe (47) is arranged at the bottom of the cleaning tank (31), and an electric valve is arranged inside the sewage pipe (47), hollow shafts (32) are symmetrically rotatably connected on both sides of the inner wall of the cleaning tank (31), a filter cartridge (33) is fixedly connected between the ends of the two hollow shafts (32) that are close to each other, and the first A cleaning motor (36) is fixedly connected to the top of the skid-mounted frame (1), one end of one of the hollow shafts (32) extends to the outside of the cleaning tank (31) and is fixedly connected to the output end of the cleaning motor (36); a first auger (34) is rotatably connected between the two sides of the inner wall of the filter cartridge (33), the blades of the first auger (34) are in contact with the inner wall of the filter cartridge (33), a push motor (35) is fixedly connected to one side of the cleaning tank (31), the output end of the push motor (35) extends to the inside of the filter cartridge (33) through the hollow shaft (32) and is fixedly connected to one end of the central axis of the first auger (34); the side wall of the filter cartridge (33) is provided with The filter cartridge (33) has a notch (37), the side wall of the filter cartridge (33) is fixedly connected with a cleaning groove (38) at the position where the notch (37) is located, the inner walls of the cleaning groove (38) are symmetrically fixedly connected with first slide rails (39) on both sides, and a blocking plate (40) is slidably connected between the outer sides of the two first slide rails (39), and the blocking plate (40) is configured to match the shape of the arc plate and the notch (37), the side wall of the filter cartridge (33) is symmetrically provided with a feed port (42) and a discharge port (41) at the same axial position, the outer side of the filter cartridge (33) is symmetrically sleeved with a sleeve (45), and the sleeve (45) is rotatably connected to the filter cartridge (33), and one of them A delivery pipe (43) is fixedly connected to the side wall of the sleeve (45), the top end of which extends to the top of the cleaning tank (31); a cleaning discharge pipe (44) is fixedly connected to the side wall of the other sleeve (45), the bottom end of which extends to the bottom of the cleaning tank (31); the delivery pipe (43) and the cleaning discharge pipe (44) are both fixedly connected to the cleaning tank (31); friction rings (310) with rough surfaces are fixedly connected to both end surfaces of the filter cartridge (33), both sides of the inner wall of the cleaning tank (31) are provided with rough surfaces, and the rough surfaces of the cleaning tank (31) are in contact with the friction ring (310).

5. The glutinous rice flour grinding process for producing traditional maltose according to claim 4, characterized in that: The freezing component comprises a freezing cabinet (51) fixedly connected to the inside of a first skid-mounted frame (1); a compressor for providing a cold source to the freezing cabinet (51) is also fixedly installed inside the first skid-mounted frame (1); the cleaning discharge pipe (44) extends through the top of the freezing cabinet (51) to the inside of the freezing cabinet (51); a freezing discharge pipe (67) is arranged at the bottom of one side of the freezing cabinet (51); an electric push rod (53) is fixedly connected to the top of the freezing cabinet (51); an output end of the electric push rod (53) extends to the inside of the freezing cabinet (51) and is fixedly connected to a lifting frame (54); a plurality of trays (52) are staggered and hinged on both sides of the inner wall of the freezing cabinet (51); the trays (52) are provided with air holes; the bottom of the trays (52) A bracket (56) is fixedly connected, a support rod (55) is fixedly connected to one side of the lifting frame (54), and the support rod (55) is slidably connected to the inner wall of the bracket (56); a screw rod (57) is rotatably connected between the inner walls of the freezer (51), a material spreading motor (69) is fixedly connected to one side of the freezer (51), the output end of the material spreading motor (69) extends to the inside of the freezer (51) and is fixedly connected to one end of the screw rod (57), a slider (58) is threadedly connected to the outer side of the screw rod (57), and a drying rake (59) equal in number to the tray (52) is arranged on one side of the slider (58), a water receiving box (68) is placed at the bottom of the inner wall of the freezer (51), and an electric valve is arranged inside the freezing discharge pipe (67).

6. The glutinous rice flour grinding process for producing traditional maltose according to claim 5, characterized in that: The drying rake (59) is rotatably connected to the side wall of the slider (58) via a damping shaft; the central axis of the drying rake (59) extends to the other side of the slider (58) and is fixedly connected to a transmission gear (65); one side of the slider (58) is fixedly connected to a fixed block (61) corresponding to the tray (52); the bottom of the fixed block (61) is slidably connected to a second slide rail (62); the bottom of the second slide rail (62) is fixedly connected to a rack (63); the rack (63) is meshed with the transmission gear (65); both ends of the rack (63) are fixedly connected to cushion blocks (64); and both sides of the inner wall of the freezer (51) are fixedly connected to top blocks (66) used in conjunction with the cushion blocks (64).

7. The glutinous rice flour grinding process for producing traditional maltose according to claim 6, characterized in that: Both sides of the cleaning discharge pipe (44) are provided with mounting openings, the interiors of the mounting openings are fixedly connected with partitions (75), the partitions (75) are provided with a plurality of strip grooves (76) at equal intervals, both sides of the cleaning discharge pipe (44) are symmetrically fixedly connected with water squeezing plates (77), the water squeezing plates (77) are provided with a plurality of water squeezing grooves (78), and the two opposite outer side walls of the cleaning discharge pipe (44) are fixedly connected with servo modules (71), the movement of the servo modules (71) The ends of the linkage rods (72) are fixedly connected, and the ends of the linkage rods (72) are fixedly connected with traction blocks (73), and the number of moisture-absorbing cloths (74) equal to the number of the strip grooves (76) is equidistantly fixedly connected between the two traction blocks (73), and the moisture-absorbing cloths (74), the strip grooves (76) and the water squeezing grooves (78) correspond to each other one by one, and the moisture-absorbing cloths (74) pass through the strip grooves (76) and the water squeezing grooves (78) at the same time, and the moisture-absorbing cloths (74) are tightly fitted with the inner wall of the water squeezing grooves (78).

8. The glutinous rice flour grinding process for producing traditional maltose according to claim 7, characterized in that: The feeding component comprises a feeding bin (81), a plurality of support rods (82) are fixedly connected to the top of the feeding bin (81), a transmission box (83) is fixedly connected between the tops of the plurality of support rods (82), a feeding cylinder (84) is fixedly connected to the top of the feeding bin (81), a switching cylinder (89) is rotatably connected between the top of the feeding cylinder (84) and the bottom of the transmission box (83), a feeding tube (810) is arranged on the switching cylinder (89), and the feeding tube (810) is arranged in an inclined manner, a second auger (85) is rotatably connected between the bottom of the inner wall of the feeding bin (81) and the bottom of the transmission box (83), a feeding motor (86) is fixedly connected to the top of the transmission box (83), and the top of the central axis of the second auger (85) and The output ends of the feeding motor (86) extend to the interior of the transmission box (83) and are connected through a belt and a pulley transmission; the outer wall of the support rod (82) is fixedly connected to a support plate (87), the bottom of the support plate (87) is fixedly connected to a switching motor (88), the output end of the switching motor (88) extends to the top of the support plate (87) and is fixedly connected to a crank (811), the end is provided with a transmission column (813), the outer wall of the switching cylinder (89) is fixedly connected to a slide (812), and the slide (812) is slidably connected to the transmission column (813); a heating pipe is wound around the outside of the feeding cylinder (84), and the heating pipe is provided with a heat source provided by an external heating device, and a plurality of ventilation holes are opened on the side wall of the feeding cylinder (84).

9. The glutinous rice flour grinding process for producing traditional maltose according to claim 8, characterized in that: The grinding component comprises a second skid-mounted frame (2) and a grinding box (21), wherein the grinding box (21) is fixedly connected to the top of the second skid-mounted frame (2), and two grinding rollers (23) for use are rotatably connected between the two sides of the inner wall of the grinding box (21), one end of the central axis of the two grinding rollers (23) extends to the outside of the grinding box (21) and is transmission-connected through mutually meshing gears (65), a grinding motor (24) is fixedly installed on the outer wall of the grinding box (21), and one end of the central axis of one of the grinding rollers (23) away from the gear (65) is transmission-connected to the output end of the grinding motor (24) through a reducer, and guide plates (22) are symmetrically fixedly connected to the two sides of the inner wall of the grinding box (21). The guide plate (22) is arranged in an inclined manner; a fixed plate (27) is fixedly connected between the two sides of the inner wall of the grinding box (21); two first sliding rods (25) are symmetrically slidably connected to one side of the fixed plate (27); one end of each of the first sliding rods (25) is fixedly connected to a limiting block (210); one end of each of the two first sliding rods (25) away from the limiting head extends to the other side of the fixed plate (27) and a brush (26) is fixedly connected therebetween; the bristle portion of the brush (26) contacts the grinding roller (23); a first spring (28) is sleeved on the outside of the first sliding rod (25) and located between the fixed plate (27) and the brush (26); a lower hopper (29) is arranged at the bottom of the grinding box (21).

10. The glutinous rice flour grinding process for producing traditional maltose according to claim 9, characterized in that: A through groove is provided at the bottom of the lower hopper (29), a screen (91) is fixedly connected between the inner walls of the through groove, the top of the screen (91) is flush with the bottom of the inner wall of the lower hopper (29), a plurality of deceleration platforms (92) are fixedly connected to the bottom of the inner wall of the lower hopper (29), the end surface of the deceleration platform (92) is semi-elliptical, friction plates (96) are connected to the two sides of the lower hopper (29) by screws, a mounting plate (93) is fixedly connected to the top of the inner side of the second skid mounting frame (2), the top of the mounting plate (93) is slidably connected to two second slide bars (94), the tops of the second slide bars (94) are fixedly connected with pads (97), the bottoms of the second slide bars (94) extend to the bottom of the mounting plate (93) and are screwed in place. A friction block (95) is connected to the nail, and the friction block (95) and the friction plate (96) are in contact with each other and the contacting side is set to a rough surface; a second spring (99) is sleeved on the outside of the second slide bar (94) and located between the pad (97) and the mounting plate (93); the ends of the central axes of the two grinding rollers (23) close to the gear (65) are fixedly connected to a cam (98), and the cam (98) is in contact with the pad (97); a transfer box (11) is fixedly connected to the middle position of the inner side of the second skid-mounted frame (2), and a transfer pipe (12) is set at the bottom of the transfer box (11), and the bottom end of the transfer pipe (12) extends to the inside of the feeding bin (81), and the bottom of the freezing discharge pipe (67) extends to the inside of the feeding bin (81).

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