Broken rice crushing, pulping and liquefying device

Abstract

An outlet of a feeding hopper is connected with a cleaning sieve through a first elevator, an undersize outlet of the cleaning sieve is connected with a stoning machine, a material outlet of the stoning machine is connected with a permanent magnet cylinder through a second elevator, an outlet of the permanent magnet cylinder is connected with a surge bin, an outlet of the surge bin is connected with a flour mill, and the flour mill is connected with a feeding hopper. An outlet of the flour mill is connected with the soaking tank, an outlet of the soaking tank is connected with an inlet of the fine grinding pump, an outlet of the fine grinding pump is connected with the liquefaction buffer tank, and an outlet of the liquefaction buffer tank is connected with a main inlet of the static mixer through the rice milk conveying pump; an inlet pipeline of the liquefying enzyme metering pump is inserted into the liquefying enzyme tank, an outlet of the liquefying enzyme metering pump is connected with an auxiliary inlet of the static mixer, and an outlet of the static mixer is connected with a liquefying spraying section. According to the device, the cleanliness and fineness of rice milk can be guaranteed, the spray liquefaction requirement is met, water consumption and energy consumption in the production process are reduced, and the environmental protection benefit is high.

Description

Technical Field

[0001] The utility model relates to a broken rice processing system, in particular to a broken rice crushing pulping and liquefaction device, belonging to the technical field of broken rice processing equipment. Background Art

[0002] In the process of rice processing, about 20% rice husks, 15% broken rice and 10% rice bran are produced as by-products. These by-products are rich in protein, fat, starch, etc. Normally, we use broken rice and rice bran as feed and rice husk as fuel, which not only wastes resources but also has a certain impact on the environment.

[0003] Broken rice is of poorer quality than rice, with more impurities, high ash content and relatively cheap price. However, broken rice also has its advantages. It has higher protein content than rice and contains high-quality starch. The protein content of broken rice can reach about 10.5%, while the protein content of rice is about 8.8%. The protein content of broken rice is about 2 percentage points higher than that of normal rice. Using broken rice to produce food-grade rice protein can increase the protein yield, turn waste into treasure, and increase the profits of production companies.

[0004] Broken rice starch can be processed into crystalline sugar, and the by-product crystalline sugar mother liquor will be produced in the production process of crystalline sugar.

[0005] The Chinese invention patent application with publication number CN109303163 A discloses a method for extracting protein powder using broken rice, and the following steps are taken to prepare the protein powder: material preparation → refining → slurry adjustment → liquefaction injection → deproteinization → protein washing → filtration → drying, etc., and the solution added during the refining process is the protein washing solution obtained by filtering during protein absorption, thereby increasing the utilization rate of the material.

[0006] However, the above technical scheme and the prior art have the following defects: the broken rice is directly soaked, and then the pulp is refined once after soaking. The effect of direct soaking is poor. To achieve the same soaking effect, a long soaking time is required, and then backwashing is performed to remove some impurities, and then the rice is ground by a grinding wheel to meet the liquefaction requirements. A large amount of soaking sewage and backwashing sewage will be generated during the soaking and backwashing process, which not only leads to high water consumption and large amount of sewage, but also increases environmental pressure. Now the country's requirements for environmental emissions are becoming more and more stringent, and sewage treatment accounts for a large production cost. It is necessary to optimize the production process and reduce water consumption and sewage. Utility Model Content

[0007] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0008] In view of the above problems and / or the problems existing in the prior art, the present utility model is proposed.

[0009] The purpose of the utility model is to overcome the problems existing in the prior art and provide a rice crushing pulping liquefaction device, which can not only ensure the cleanliness and fineness of rice pulp and meet the requirements of jet liquefaction, but also reduce water consumption and energy consumption in the production process, and has high environmental benefits.

[0010] In order to solve the above technical problems, the utility model provides a rice crushing pulping liquefaction device, comprising a feeding hopper, the outlet of the feeding hopper is connected to the inlet of a first elevator, the outlet of the first elevator is connected to the inlet of a cleaning screen, the under-screen outlet of the cleaning screen is connected to the inlet of a stone remover, the material outlet of the stone remover is connected to the inlet of a second elevator, the outlet of the second elevator is connected to the inlet of a permanent magnetic cylinder, the outlet of the permanent magnetic cylinder is connected to the inlet of a buffer bin, the outlet of the buffer bin is connected to the feed port of a mill, the outlet of the mill is connected to the inlet of a soaking tank, the outlet of the soaking tank is connected to the inlet of a fine grinding pump, the outlet of the fine grinding pump is connected to the inlet of a liquefaction buffer tank, the outlet of the liquefaction buffer tank is connected to the main inlet of a static mixer through a rice slurry delivery pump; the inlet pipe of a liquefaction enzyme metering pump is inserted into the liquefaction enzyme tank, the outlet of the liquefaction enzyme metering pump is connected to the secondary inlet of the static mixer, and the outlet of the static mixer is connected to a liquefaction injection section.

[0011] As an improvement of the present utility model, a pH sensor is installed on the outlet pipe of the rice slurry delivery pump, the inlet pipe of the sodium carbonate metering pump is inserted into the sodium carbonate tank, and the outlet pipe of the sodium carbonate metering pump is connected to the inlet of the rice slurry delivery pump; the flow rate of the sodium carbonate metering pump is controlled by the pH value measured by the pH sensor.

[0012] As a further improvement of the utility model, a rice slurry mass flowmeter is installed on the outlet pipe of the rice slurry delivery pump, a liquefaction enzyme flowmeter is installed on the outlet pipe of the liquefaction enzyme metering pump and is interlocked with the rice slurry mass flowmeter, and the rotation speed of the liquefaction enzyme metering pump is controlled by the enzyme flow measured by the liquefaction enzyme flowmeter.

[0013] As a further improvement of the utility model, the soaking tank is provided with two connected in series, at least two baffles are provided along the height direction of the soaking tank, and stirring shafts are provided along the axis of the soaking tank, and stirring blades corresponding to each baffle space are provided on the stirring shaft.

[0014] As a further improvement of the utility model, the dust hoods of the feeding hopper and the cleaning screen are respectively connected to the air inlet of the first pulse dust collector through a suction air net, and the exhaust gas outlet of the first pulse dust collector is connected to the atmosphere through a first induced draft fan.

[0015] As a further improvement of the utility model, the dust hood outlet of the stone remover is connected to the air inlet of the second pulse dust collector through a dust removal air duct, and the exhaust gas outlet of the second pulse dust collector is connected to the atmosphere through a second induced draft fan.

[0016] Compared with the prior art, the utility model has achieved the following beneficial effects: 1. In view of the large amount of impurities and high ash content in broken rice, in order to obtain high-quality rice protein, broken rice is used as raw material, the rice is manually fed through a vibrating screen to remove large impurities and part of the ash, and then the stone removal machine is used to remove the shoulder stones and part of the ash, and then the conveying equipment enters the permanent magnetic cylinder to remove iron impurities, and then enters the mill to grind the rice into a particle diameter of about 20 meshes, and then water is added to obtain starch milk;

[0017] 2. The feeding roller of the mill is controlled by frequency conversion. The amount of water added is linked with the feeding roller frequency of the mill to control the concentration of the starch milk online.

[0018] 3. The rice slurry is crushed into powder once, soaked, and then finely crushed into powder twice. The crushed rice reaches about 20 mesh after coarse crushing. The soaking time required to achieve the same soaking effect is greatly shortened, and the soaking water will not deteriorate over time. The rice slurry is easier to crush after soaking, ensuring the crushing effect of the secondary crushing.

[0019] 4. The rice slurry enters two soaking tanks, each of which has two transverse partitions to form a baffle, and each compartment is provided with a stirring device, so that the first-in-first-out of the rice slurry can be ensured through each transverse partition and the stirring device, and the rice slurry can be ensured not to precipitate;

[0020] 5. After the soaked rice is further crushed to more than 80 meshes by a fine grinding pump, the pH value is adjusted online first, and no new pollutants are introduced during the pH adjustment process. Then, liquefaction enzyme is added to the liquefaction injection section;

[0021] 6. This device optimizes the production process, reduces water consumption, reduces sewage discharge, and ensures the liquefaction effect. It adopts secondary cleaning, and changes the broken rice crushing from wet immersion grinding to dry cleaning grinding, that is, dry crushing by the first-level mill and fine grinding by the second level, to achieve the fineness required by jet liquefaction, so that the broken rice can be comprehensively utilized through deep processing; at the same time, it can increase factory profits and product added value by saving energy and reducing consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. The drawings are only provided for reference and explanation, not for limiting the present utility model. Among them:

[0023] Figure 1 This is a flow chart of the rice crushing pulping and liquefaction device of the utility model;

[0024] In the figure: a feeding hopper 101; a first elevator 102; a cleaning screen 103; a stone remover 104; a first pulse dust collector 105; a first induced draft fan 106; a second pulse dust collector 107; a second induced draft fan 108; a second elevator 109; a permanent magnetic cylinder 110; a buffer bin 111; a grinder 112; a rare sugar flowmeter FT112; a regulating valve FC112; a soaking tank 113; a fine grinding pump 114; a liquefaction buffer tank 115; a sodium carbonate tank 116; a sodium carbonate metering pump 117; a rice slurry delivery pump 118; a rice slurry mass flowmeter DT118; a pH sensor PH118; a liquefaction enzyme tank 119; a liquefaction enzyme metering pump 120; a liquefaction enzyme flowmeter FT120; a static mixer 121; and a liquefaction injection section 200. DETAILED DESCRIPTION

[0025] In the following description of the utility model, the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not mean that the device must have a specific direction.

[0026] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below with reference to specific figures. Obviously, the described embodiments are only a part of the present invention, not all of them.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0028] like Figure 1As shown, the rice crushing pulping liquefaction device of the utility model comprises a feeding hopper 101, a first elevator 102, a cleaning screen 103, a stone remover 104, a first pulse dust collector 105, a first induced draft fan 106, a second pulse dust collector 107, a second induced draft fan 108, a second elevator 109, a permanent magnetic cylinder 110, a buffer bin 111, a mill 112, a soaking tank 113, a fine grinding pump 114, a liquefaction buffer tank 115, a sodium carbonate tank 116, a sodium carbonate metering pump 117, a rice slurry delivery pump 118, a liquefaction enzyme tank 119, a liquefaction enzyme metering pump 120 and a static mixer 121. The outlet of the feeding hopper 101 is connected to the inlet of the first elevator 102, and the outlet of the first elevator 102 is connected to the inlet of the cleaning screen 103. The dust hoods of the feeding hopper 101 and the cleaning screen 103 are respectively connected to the air inlet of the first pulse dust collector 105 through the suction air net, and the exhaust gas outlet of the first pulse dust collector 105 is connected to the atmosphere through the first induced draft fan 106.

[0029] The under-sieve outlet of the cleaning screen 103 is connected to the inlet of the stone remover 104 , the dust hood outlet of the stone remover 104 is connected to the air inlet of the second pulse dust collector 107 through the dust removal air duct, and the exhaust gas outlet of the second pulse dust collector 107 is connected to the atmosphere through the second induced draft fan 108 .

[0030] The material outlet of the stone remover 104 is connected to the inlet of the second elevator 109, the outlet of the second elevator 109 is connected to the inlet of the permanent magnet cylinder 110, the outlet of the permanent magnet cylinder 110 is connected to the inlet of the buffer bin 111, the outlet of the buffer bin 111 is connected to the feed port of the grinding mill 112, the outlet of the grinding mill 112 is connected to the inlet of the soaking tank 113, the outlet of the soaking tank 113 is connected to the inlet of the fine grinding pump 114, and the outlet of the fine grinding pump 114 is connected to the inlet of the liquefaction buffer tank 115.

[0031] A pH sensor PH118 is installed on the outlet pipe of the rice milk delivery pump 118, and the inlet pipe of the sodium carbonate metering pump 117 is inserted into the sodium carbonate tank 116, and the outlet pipe of the sodium carbonate metering pump 117 is connected to the inlet of the rice milk delivery pump 118; the flow of the sodium carbonate metering pump 117 is controlled by the pH value measured by the pH sensor PH118.

[0032] The outlet of the liquefaction buffer tank 115 is connected to the main inlet of the static mixer 121 through the rice slurry delivery pump 118; the inlet pipe of the liquefaction enzyme metering pump 120 is inserted into the liquefaction enzyme tank 119, the outlet of the liquefaction enzyme metering pump 120 is connected to the secondary inlet of the static mixer 121, and the outlet of the static mixer 121 is connected to the liquefaction injection section 200.

[0033] A rice slurry mass flowmeter DT118 is installed on the outlet pipe of the rice slurry delivery pump 118, a liquefaction enzyme flowmeter FT120 is installed on the outlet pipe of the liquefaction enzyme metering pump 120 and is interlocked with the rice slurry mass flowmeter DT118, and the rotation speed of the liquefaction enzyme metering pump 120 is controlled by the enzyme flow measured by the liquefaction enzyme flowmeter FT120.

[0034] There are two soaking tanks 113 connected in series, at least two baffles are provided along the height direction of the soaking tank 113, stirring shafts are provided along the axis of the soaking tank 113, and stirring blades corresponding to each baffle space are provided on the stirring shafts.

[0035] Broken rice is fed through the feeding hopper 101. Considering the dust, the feeding port is provided with a first pulse dust collector 105 and a matching induced draft fan 108. The fed broken rice is sent to a high position by the first elevator and transported to the cleaning screen 103 for screening to remove most of the impurities in the broken rice. After the impurities are removed, the broken rice enters the stone remover 104 for further removal of impurities and the stones entrained in the broken rice. At the same time, the matching second pulse dust collector 107 and induced draft fan 106 are used to further remove impurities and reduce the ash content of the broken rice.

[0036] The broken rice after stone removal is lifted to a high position again by the second hoist 109 and enters the permanent magnetic drum 110 to remove the iron filings in the broken rice, and enters the buffer bin 111 for temporary storage. The broken rice discharged from the buffer bin 111 enters the mill 112 for grinding, and is fed by the variable frequency feeding roller of the mill 112; the dilute sugar water produced by the post-washing enters the mill 112 through the dilute sugar water pipeline for slurry mixing to improve the yield of the syrup. The dilute sugar water pipeline is installed with a dilute sugar flowmeter FT112 and a regulating valve FC112. The speed of the feeding roller of the mill 112 is interlocked with the flow of the dilute sugar flowmeter FT112 and the opening of the regulating valve FC112 to ensure the concentration requirement of the discharged rice flour.

[0037] The rice flour after the first grinding enters two soaking tanks 113 in turn to ensure the first-in-first-out of the materials. Each soaking tank 113 is respectively provided with two transverse partitions, the transverse partitions are evenly distributed with through holes, and each compartment is respectively provided with a stirring device, so that the first-in-first-out of the rice slurry can be ensured through each partition and the stirring device, and the flow rate is increased, and the rice slurry can be ensured not to precipitate.

[0038] The primary crushed rice that has been soaked for a certain period of time is further ground by a fine grinding pump 114 to reach the required fineness of 80 mesh or above and enters the liquefaction buffer tank 115 for temporary storage.

[0039] The pH value needs to be adjusted before the injection liquefaction, and the online adjustment is achieved through the sodium carbonate tank 116 and the sodium carbonate metering pump 117. The sodium carbonate metering pump 117 can adjust the speed by variable frequency to achieve flow regulation. The outlet of the rice slurry delivery pump 118 is equipped with a pH sensor PH118, and the speed of the sodium carbonate metering pump 117 is linked with the pH value measured by the pH sensor. The rice slurry mass flowmeter DT118 installed at the outlet of the rice slurry delivery pump 118 is used to calculate the amount of broken rice feed per shift.

[0040] After the pH value is adjusted, a static mixer 121 needs to be added to the outlet pipe of the rice slurry delivery pump 118 for adding liquefaction enzyme online. The liquefaction enzyme in the liquefaction enzyme tank 119 is added in a certain proportion by the liquefaction enzyme metering pump 120, and the outlet of the liquefaction enzyme metering pump 120 is equipped with a liquefaction enzyme flowmeter FT120. The rotation speed of the liquefaction enzyme metering pump 120 is linked with the flow measured by the liquefaction enzyme flowmeter FT120, and the rice slurry after adding the liquefaction enzyme enters the liquefaction injection section.

[0041] The above description is only the preferred feasible embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model, but does not limit the scope of patent protection of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. In addition to the above embodiments, the utility model can also have other implementation modes without departing from the spirit and scope of the utility model. The utility model will also have various changes and improvements. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents. The technical features not described in the utility model can be achieved by or using existing technologies, which will not be repeated here.

Claims

1. A rice crushing pulping and liquefaction device, comprising a feeding hopper (101), characterized in that: The outlet of the feeding hopper (101) is connected to the inlet of the first elevator (102), the outlet of the first elevator (102) is connected to the inlet of the cleaning screen (103), the under-screen outlet of the cleaning screen (103) is connected to the inlet of the stone remover (104), the material outlet of the stone remover (104) is connected to the inlet of the second elevator (109), the outlet of the second elevator (109) is connected to the inlet of the permanent magnetic drum (110), the outlet of the permanent magnetic drum (110) is connected to the inlet of the buffer bin (111), the outlet of the buffer bin (111) is connected to the feed inlet of the grinding mill (112), and the outlet of the grinding mill (112) is connected to the soaking The inlet of the soaking tank (113) is connected, the outlet of the soaking tank (113) is connected to the inlet of the fine grinding pump (114), the outlet of the fine grinding pump (114) is connected to the inlet of the liquefaction buffer tank (115), and the outlet of the liquefaction buffer tank (115) is connected to the main inlet of the static mixer (121) through the rice slurry delivery pump (118); the inlet pipeline of the liquefaction enzyme metering pump (120) is inserted into the liquefaction enzyme tank (119), the outlet of the liquefaction enzyme metering pump (120) is connected to the secondary inlet of the static mixer (121), and the outlet of the static mixer (121) is connected to the liquefaction injection section (200).

2. The rice crushing pulping and liquefaction device according to claim 1, characterized in that: A pH sensor (PH118) is installed on the outlet pipe of the rice slurry delivery pump (118); the inlet pipe of the sodium carbonate metering pump (117) is inserted into the sodium carbonate tank (116); the outlet pipe of the sodium carbonate metering pump (117) is connected to the inlet of the rice slurry delivery pump (118); and the flow rate of the sodium carbonate metering pump (117) is controlled by the pH value measured by the pH sensor (PH118).

3. The rice crushing pulping and liquefaction device according to claim 1, characterized in that: A rice slurry mass flowmeter (DT118) is installed on the outlet pipeline of the rice slurry delivery pump (118), a liquefaction enzyme flowmeter (FT120) is installed on the outlet pipeline of the liquefaction enzyme metering pump (120) and is interlocked with the rice slurry mass flowmeter (DT118), and the rotation speed of the liquefaction enzyme metering pump (120) is controlled by the enzyme flow measured by the liquefaction enzyme flowmeter (FT120).

4. The rice crushing pulping and liquefaction device according to claim 1, 2 or 3, characterized in that: The soaking tank (113) is provided with two soaking tanks (113) connected in series, at least two baffles are provided along the height direction of the soaking tank (113), stirring shafts are provided along the axis of the soaking tank (113), and stirring blades corresponding to each baffle space are provided on the stirring shafts.

5. The rice crushing pulping and liquefaction device according to claim 1, 2 or 3, characterized in that: The dust hoods of the feeding hopper (101) and the cleaning screen (103) are respectively connected to the air inlet of the first pulse dust collector (105) through a suction air net, and the exhaust gas outlet of the first pulse dust collector (105) is connected to the atmosphere through a first induced draft fan (106).

6. The rice crushing pulping and liquefaction device according to claim 1, 2 or 3, characterized in that: The dust hood outlet of the stone remover (104) is connected to the air inlet of the second pulse dust collector (107) through a dust removal air duct, and the exhaust gas outlet of the second pulse dust collector (107) is connected to the atmosphere through a second induced draft fan (108).

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