CN112189785B - Complete equipment for producing rice flour - Google Patents

Abstract

The invention discloses complete equipment for producing rice flour, which relates to the technical field of rice flour processing and comprises an auxiliary material tank, a rice lifting machine, a fermentation tank, a rice pulp feeder, an auxiliary material stirring machine, a continuous material mixing conveyor, a sieve mesh hopper, a grinding machine, a centralized tank, a feeding pump, a conveyor belt of a self-curing machine, a fan, a primary flour feeder, an extruder, a secondary flour feeder, a forming machine, an aging machine conveyor belt and an aging machine which are sequentially arranged according to a material conveying direction. According to the invention, by adopting the belt type conveying materials, the multiple devices for dispersing and grinding rice grains and reasonably arranging the steam discharging devices, equipment clogging faults caused by easy precipitation, polymerization and deterioration in traditional screw type conveying are avoided, the fineness of ground rice flour is improved, the environmental temperature of a production workshop is reduced, and therefore, the production efficiency of the rice flour is improved and the taste of finished rice flour is improved.

Description

Complete equipment for producing rice flour

Technical Field

The invention relates to the technical field of rice flour processing, in particular to complete equipment for producing rice flour.

Background

Rice flour, a Chinese characteristic snack, is a popular food in southern China, the rice flour is made from rice as a raw material through the procedures of soaking, steaming, pressing, and the like, and is not a powdery material which is understood in word sense and is made from rice as a raw material through grinding. The rice flour has flexible texture, high elasticity, no soup pasting after boiling in water, no breakage after frying, and is matched with various vegetable codes or soup bases for boiling or frying, smooth and tasty, is deeply favored by consumers (especially southern consumers), and has a plurality of rice flour varieties which can be divided into rice flour, square rice flour, corrugated rice flour, silver silk rice flour, wet rice flour, dry rice flour and the like. The production processes of the materials are different in size and are generally as follows: rice, washing, soaking, pulping, steaming, tabletting (extruding), re-steaming, cooling, drying, packaging and obtaining the finished product. The traditional rice flour production adopts manual or semi-mechanical production, the production efficiency is low, the demand of operators is large, in addition, the traditional grinding machine usually only has one hopper to feed into the grinding device for centralized grinding, the coarse rice grains have poor taste, and the technological parameters are unstable through manual control and cannot meet the increasing quality and quantity demands of people, so that the whole set of rice flour production equipment with high production efficiency and good production product quality is necessary.

Chinese patent (CN 201710981387.7) discloses a large-scale multifunctional whole set rice flour production device. The rice flour packaging machine comprises a rice elevator blanking port, a rice elevator, a fermentation tank, a rice feeding machine, a rice flour discharging port, an auxiliary material machine, a continuous dough mixing conveyor, a discharging port, a self-ripening conveyor belt, a hot water circulation tank, a dough feeding machine, an extruder, an aging machine conveyor belt, a fan, an aging machine, a primary wire loosening machine, a powder steaming machine, a discharging tank, a secondary wire loosening machine, a conveyor belt, a feeding port, an inner packing machine, a conveyor belt I, a weighing instrument, a metal detector, a conveyor belt II, a sterilizing machine and a powder picking machine which are sequentially arranged according to the material conveying direction, wherein rice enters the fermentation tank through the elevator at the rice elevator blanking port, enters the rice feeding machine through the rice flour feeding machine after fermentation or direct soaking and cleaning, enters the auxiliary material machine from the rice flour discharging port, is mixed with the auxiliary material machine, and then enters the self-ripening conveyor belt through the continuous dough mixing conveyor, the material feeding machine is conveyed to the dough feeding machine, the dough feeding machine is connected with the extruder, the hot water circulation tank is used for heating the materials around the extruder, the rice flour is rapidly cooled by the fan, and enters the cooling machine after the rice flour loosening machine from the extruder, enters the material loosening machine through the fan, the wire loosening machine enters the material after being sequentially subjected to ageing by the wire loosening machine and the metal detector, passes through the wire loosening machine I and the weighing instrument and the metal detector, and the rice flour is sequentially enters the material loosening machine after being subjected to be subjected to quality inspection and packaging by the material after the material is sequentially and has been subjected to aging and packaging by the material.

The invention realizes the production line of automatic rice flour production, improves the rice flour production efficiency to a certain extent, but still has great room for improvement, for example, the rice flour is intensively milled for one time by using a rice feeder, so that the milled rice flour is coarser, the whole line production stop maintenance is often caused by the fault of the rice feeder due to the blockage of a machine or the solidification of powder, and the temperature in a workshop is too high due to the fact that a steam discharge pipe is not arranged, and the taste of the rice flour and the comfort level of operators are influenced, so that the invention provides a complete set of equipment capable of improving the rice flour production efficiency and the taste of the rice flour.

Disclosure of Invention

(one) solving the technical problems

In order to further improve the automatic production efficiency of rice flour and the taste of finished rice flour, the invention provides complete equipment for producing rice flour, which well solves the problems by adopting a belt type conveying material, a plurality of devices for uniformly dispersing milled rice grains and reasonably arranging a steam discharging device.

(II) technical scheme

In order to achieve the above purpose, the present invention provides the following technical solutions:

the utility model provides a complete sets of production ground rice, including arranging the auxiliary material jar that sets gradually according to the material conveying direction, rice lifting machine, fermentation cylinder, rice thick liquid feeding machine, auxiliary material pulper, continuous sum material conveyer, sieve mesh hopper, mill, concentrated groove, feed pump, from ripening machine conveyer belt, fan, once feed face machine, extruder, secondary feed face machine, make-up machine, ageing machine conveyer belt, be provided with the conveyer belt between sieve mesh hopper and the mill for send fermented rice and the auxiliary material that comes out from the sieve mesh hopper into the mill, the mill includes hopper, a plurality of parallel feed passageway, a plurality of parallel milling device and a plurality of baffle boxes that parallel arranged from the top down, the hopper opening is upwards, and its lower extreme intercommunication is all feed passageway, milling device is located the feed passageway below, milling device is provided with material import and material export, and the material import of every milling device corresponds and receives a feed passageway and export, the baffle box sets up in every milling device's material export department, can dismantle easily. The conveyor belt of the self-ripening forming machine comprises a conveyor belt, an inverted V-shaped sealing cover and a steam pipe, wherein the inverted V-shaped sealing cover covers the conveyor belt, the steam pipe is arranged above the sealing cover, the conveyor belt, the sealing cover and the steam pipe form a tunnel type heating channel, steam discharge pipes perpendicular to the conveyor belt are arranged at openings for materials to enter and exit at two ends of the heating channel, and the lower end of each steam discharge pipe is provided with a funnel-shaped opening for absorbing steam, so that steam can be prevented from overflowing in workshop air; the ageing machine conveyer belt exit end is provided with the water seal pipe perpendicular to direction of delivery and parallel to the conveyer belt, and water seal pipe one end is sealed, and the water pump is connected to the other end, and water seal pipe face is equipped with a row of intensive aperture towards the conveyer belt along the axial, and cold water is spouted from intensive aperture and is formed the water seal and block steam and leak, cooling ground rice simultaneously.

Preferably, a horizontal material distributing screw rod parallel to the long groove edge of the feeding part is arranged in the feeding part, the material distributing screw rod comprises a long shaft main body and screw blades, two ends of the long shaft main body are connected with the feeding part through bearings, the outside is driven by a motor to rotate around the axial lead, and the screw blades are distributed on the long shaft main body at intervals in a sheet shape.

Further, the spiral blade does not completely cover the long shaft main body, and the middle part and the two ends of the long shaft main body are not provided with the spiral blade.

Further, the spiral blades are distributed in mirror symmetry with respect to the center of the long shaft main body, that is, one side separated by the center is clockwise, and the other side is anticlockwise.

The rice enters a fermentation tank through a lifting machine, a valve at the lower part of the fermentation tank is opened after the rice is fermented internally or is directly soaked and cleaned for a certain time, the fermented rice and water mixture enters a rice pulp feeder, then is pumped up to enter a continuous mixing conveyor, meanwhile, auxiliary materials in an auxiliary material tank enter the continuous mixing conveyor after being crushed by an auxiliary material crusher, the rice pulp and the auxiliary materials are filtered through a sieve mesh hopper and sent to a grinding mill through a conveying belt to be subjected to dispersed fine grinding, then is pumped up to be sent to a conveying belt of a self-ripening forming machine through a feeding pump to be steamed, a fan is used for cooling and conveying the rice to a primary feeding machine, the primary feeding machine is connected with an extruder, rice flour discharged from the extruder is quickly cooled by the fan, enters a secondary feeding machine through the conveying belt and then is aged in the aging machine through the aging machine conveying belt, then is cut off according to the manufactured length, and is washed with water, formed through cutting, finally, and finally, the rice flour can be packaged and put into a finished product after drying.

(III) beneficial effects

Compared with the prior art, the technical scheme provided by the invention has the following remarkable effects:

1. the sieve mesh hopper to the grinding machine adopts a conveying belt to convey materials, and compared with the traditional screw rod type conveying, the problem that equipment is blocked due to the fact that flour paste materials are deposited and polymerized on a screw rod and are difficult to clean and deteriorate is avoided; 2. the multiple groups of parallel feeding channels, the grinding devices and the guide tanks form multiple grinding conveying paths, when one path fails, the single path can be maintained only by taking down the guide tanks, normal production of other paths is not affected, and compared with the traditional centralized large-batch grinding devices, the multiple small grinding devices perform fine grinding on dispersed materials, and the grinding effect is better; 3. the steam discharging device is reasonably arranged, so that the influence of the ambient temperature on the molding of the rice flour is reduced, and the finished rice flour has better taste.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention

FIG. 2 is a schematic view of the assembly of the mill parts

FIG. 3 is a schematic view of a water seal pipe

FIG. 4 is a schematic view of the conveyor belt structure of the self-curing molding machine

FIG. 5 is a schematic view of a feed screw structure

In the figure: 1 auxiliary material tank, 2 rice hoister, 3 fermentation tank, 4 rice pulp feeder, 5 auxiliary material pulper, 6 continuous and material conveyor, 7 sieve mesh hopper, 8 conveyer belt, 9 mill, 10 concentrated tank, 11 feed pump, 12 self-ripening molding machine conveyer belt, 13 steam discharge pipe, 14 fan, 15 primary flour feeder, 16 extruder, 17 secondary flour feeder, 18 molding machine, 19 ageing machine conveyer belt, 20 water seal pipe, 21 ageing machine, 22 steam pipe, 23 hopper, 24 feed channel, 25 mill unit, 26 guide chute, 27 feed screw, 28 long axis main body, 29 screw blade, 30 sealing cover, 31 conveyer belt two.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, but the present invention is not limited to the following embodiments, and various changes may be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Embodiment one:

referring to fig. 1 to 4, the present embodiment illustrates a complete set of equipment for producing rice flour according to the present invention, which includes an auxiliary tank 1, a rice hoist 2, a fermenter 3, a rice slurry feeder 4, an auxiliary material agitator 5, a continuous material mixing conveyor 6, a mesh hopper 7, a mill 9, a concentration tank 10, a feed pump 11, a self-curing conveyor 12, a steam discharge pipe 13, a fan 14, a primary noodle feeder 15, an extruder 16, a secondary noodle feeder 17, a molding machine 18, an aging machine conveyor 19, a water seal pipe 20, and an aging machine 21, wherein rice enters the fermenter 3 through the hoist 2, enters the rice slurry feeder 4 after fermentation or direct soaking and cleaning, and enters the auxiliary material agitator 5 from the auxiliary material tank 1, and the fermented rice and the crushed auxiliary material enter the mesh hopper 7 after being mixed by the continuous material mixing conveyor 6, the materials are conveyed into a hopper 23 of a milling machine 9 by a conveying belt 8, a material distributing screw rod 28 in the hopper 23 rotates to be distributed to two sides of the material distributing hopper 23 and then evenly flows to a milling device 25 at the lower end of a plurality of material supply channels 24, the milling device 25 finely grinds the materials and then sends the materials into a guide chute 26 to be gathered into a centralizing tank 10, a material supply pump 11 pumps the materials in the centralizing tank 10 and sends the materials to a conveying belt 12 of the self-curing molding machine to be cured, a steam discharge pipe 13 discharges excessive steam, the steamed rice flour materials are cooled by a fan 14 and then conveyed to a primary feeding machine 15, the primary feeding machine 15 is connected with an extruder 16, the rice flour discharged from the extruder 16 is quickly cooled by the fan and conveyed to a secondary feeding machine 17, the rice flour fed from the extruder 18 is connected with a molding machine 18, the rice flour discharged from the extruder 18 enters the aging machine 21 through a conveying belt 19 to be aged, the excessive steam is sealed by a water sealing pipe 20 to prevent leakage, cutting according to the length required by the manufacture, washing with water, cutting and shaping, sterilizing, drying, and packaging and warehousing to obtain the final qualified product. When a certain milling device 25 is found to be faulty or the milled rice quality of the milling device is not up to standard, a maintainer only needs to detach the guide chute 26 to prevent the unqualified rice pulp from flowing into the centralized tank 10, adjust the flow of the feed pump 11, and then adjust or maintain the milling device 26, so that the normal production of other milling devices is not influenced, and the overall production efficiency is improved.

Embodiment two:

referring to fig. 5, in the present embodiment, the spiral blades 29 on the distributing screw 27 do not completely cover the long shaft main body 28, and there are no spiral blades at the middle and two ends of the long shaft main body 28, and the spiral blades 29 are distributed in mirror symmetry with respect to the center of the long shaft main body, i.e. one side separated by the center is clockwise, and the other side is counterclockwise. Compared with the first embodiment, the spiral structure can distribute materials more uniformly, and further improves the fineness of the milled rice flour.

The rice flour prepared by using the complete equipment for producing the rice flour mainly comprises the following steps:

step one: fermenting, namely, rice enters a fermentation tank 3 through a lifting machine 2, and is soaked and fermented in the fermentation tank 3, wherein the environment temperature is as follows: soaking the raw materials at the initial water temperature of 45-50 ℃ below 10 ℃; ambient temperature: 10-30 ℃; soaking the initial water temperature at 40-45 ℃; the ambient temperature is above 30 ℃, the initial water temperature for soaking is 35-40 ℃, the pH value in the fermentation tank 2 is 4.0+/-0.5, and the weight ratio of the water for soaking to the raw materials is as follows: 1-1.4:1. Or lactobacillus or saccharomycete is added for fermentation, the soaking time is 20-30 hours, and the soaking time can be prolonged because normal production cannot be carried out;

step two: mixing auxiliary materials, namely matching the frequencies of the rice and the auxiliary materials, and if the feeding frequency of the rice changes, correspondingly measuring the starch adding amount per minute and adjusting the frequency of the auxiliary material adding motor to ensure that the adding proportion of the auxiliary materials reaches the standard, adding water and stirring: fresh water is added according to the flow of 320 g (reference) per minute to lead the moisture of the premixed flour to reach 30% -37%. According to the rice draining condition, the water adding flow rate is regulated as appropriate, and the mixture is stirred uniformly, and the fermented rice is mixed with auxiliary materials through a continuous mixing conveyor 6 and then is sent into a milling machine 9 from a sieve mesh hopper 7 through a conveyor belt 8;

step three: the grinding machine comprises a grinding machine 9, a material feeding hopper 22, a material collecting tank 10, a material collecting tank 26, a material distributing spiral rod 21, a material distributing spiral rod 22, a material collecting device 23, a material collecting device 26, a material collecting device and a material collecting device, wherein the material flows from the middle of the material distributing hopper 22 on the grinding machine 9, the middle of the material distributing spiral rod 21 is a polished rod, two sections of symmetrical reverse spiral blades are arranged on two sides of the material distributing spiral rod, when the material distributing spiral rod 21 rotates, the spiral blades only guide the materials on two sides to two sides of the material distributing hopper 22, so that the materials can uniformly flow to the grinding device 23 at the lower ends of a plurality of material feeding channels, the material is fed into the material feeding tank 26 after being finely ground by the grinding device 23 and then collected into the collecting tank 10, when a certain grinding device breaks down or the yield needs to be regulated, the fault can be maintained at the fault position by removing the material feeding tank 26 or the material feeding channel which corresponds to the grinding device;

step four: steaming the rice flour, conveying the milled rice flour slurry to a flour feeder 15 by a self-ripening machine conveying belt 12, steaming the rice flour slurry by circulating steam sent into the self-ripening machine conveying belt 12 in the middle, regulating the steam flow to control the internal temperature so as to ensure the ripening degree of the rice flour, and controlling the target temperature to be 100-120 ℃;

step five: tabletting and extruding silk to form, feeding the powder into an extruder 16 through a primary noodle feeder 15, feeding the powder into a forming machine 18 through a secondary noodle feeder 17, and adjusting the frequency of the noodle feeder 15 and the extruding frequency to keep uniform powder discharge. The primary extrusion frequency is controlled to be 40-45Hz, the secondary extrusion frequency is controlled to be 30-35Hz, and the mesh belt frequency is controlled to be 30-35Hz;

step six: re-steaming for 3-8 min, wherein the frequency of the steaming machine is controlled at 15-30Hz, the steam pressure is 0.02-0.021 MPa, and the temperature of the steaming box is 85-95 ℃;

step seven: aging, aging temperature: the temperature of the first temperature meter is 30-35 ℃; a second thermometer is used for 40-45 ℃; temperature of 50-55 ℃ and humidity of more than or equal to 90%;

step eight: sterilizing and packaging, wherein the steam pressure for sterilization is above 0.2MPa, the sterilization temperature is 91-93 ℃, the sterilization time is more than or equal to 31 minutes, and the rice flour packet is cooled to below 42 ℃.

The invention and its embodiments have been described above by way of illustration and not limitation, and the invention is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present invention.

Claims (4)

1. Complete equipment for producing rice flour is characterized in that: the device comprises an auxiliary material tank (1), a rice lifting machine (2), a fermentation tank (3), a rice slurry feeder (4), an auxiliary material stirring machine (5), a continuous material mixing conveyor (6), a sieve mesh hopper (7), a grinding mill (9), a centralized tank (10), a feed pump (11), a self-curing machine conveyor belt (12), a fan (14), a primary noodle feeder (15), an extruder (16), a secondary noodle feeder (17), a forming machine (18), an aging machine conveyor belt (19) and an aging machine (21) which are sequentially arranged along the material conveying direction; a conveying belt (8) is arranged between the sieve mesh hopper (7) and the grinding machine (9); the grinding machine (9) comprises a hopper (23), a plurality of parallel feed channels (24), a plurality of parallel grinding devices (25) and a plurality of parallel guide tanks (26) which are arranged from top to bottom, wherein the hopper (23) is opened upwards, the lower ends of the hopper are communicated with all the feed channels (24), the grinding devices (25) are positioned below the feed channels (24), the grinding devices (25) are provided with a material inlet and a material outlet, the material inlet of each grinding device (25) correspondingly receives materials discharged by one feed channel (24), and the guide tanks (26) are arranged below the material outlet of each grinding device (25) and can be easily disassembled; the conveyor belt (12) of the self-curing molding machine comprises a conveyor belt II (31), a sealing cover (30) covered above the conveyor belt II (31) and a steam pipe (22) arranged above the sealing cover, wherein the conveyor belt II (31), the sealing cover (30) and the steam pipe (22) form a tunnel type heating channel, steam discharge pipes (13) perpendicular to the conveyor belt are arranged at openings for materials to enter and exit at two ends of the heating channel, and the lower end of each steam discharge pipe (13) is a funnel-shaped opening for absorbing steam; the ageing machine conveyer belt (19) exit end is provided with perpendicular to direction of delivery and is on a parallel with conveyer belt's water seal pipe (20), and water pump is connected to water seal pipe (20) one end closure, and the other end, and water seal pipe (20) tube face is equipped with a row of intensive aperture towards the conveyer belt along the axial, and cold water is spouted in the intensive aperture and is formed the water seal and stop steam and leak, cooling rice flour simultaneously.

2. A plant for producing rice flour according to claim 1, characterized in that: the automatic feeding device is characterized in that a horizontal material distributing screw rod (27) parallel to the long side of the hopper (23) is arranged in the hopper (23), the material distributing screw rod (27) comprises a long shaft main body (28) and screw blades (29), two ends of the long shaft main body (28) are connected with the hopper (23) through bearings, the outside is driven by a motor to rotate around an axial lead, and the screw blades (29) are distributed on the long shaft main body (28) at intervals in a sheet shape.

3. A plant for producing rice flour according to claim 2, characterized in that: the spiral blades (29) do not completely cover the long shaft main body (28), and the middle part and the two ends of the long shaft main body (28) are not provided with spiral blades.

4. A plant for producing rice flour according to claim 3, characterized in that: the spiral blades (29) are distributed in mirror symmetry with respect to the center of the long shaft main body (28), namely, the spiral blades are arranged in a clockwise direction and a counterclockwise direction on one side separated by the center.

Images