Rice milk liquefying and separating processing device

Abstract

The utility model discloses a rice milk liquefying, separating and processing device which is characterized in that an outlet of a rice milk conveying pipe is connected with a material inlet of an ejector, a steam inlet of the ejector is connected with a steam pipe, an outlet of the ejector is connected with a maintaining pipe, and an outlet of the maintaining pipe is connected with a gelatinization flash tank; a bottom outlet of the gelatinization flash tank is connected with an inlet of a liquefaction reaction laminar flow tank through a liquefaction liquid pump, a bottom outlet of the liquefaction reaction laminar flow tank is connected with a syrup flash tank through a syrup pump, a bottom outlet of the syrup flash tank is connected with a horizontal screw centrifuge through a flash discharge pump, and a syrup clear liquid outlet of the horizontal screw centrifuge is connected with a syrup tank. A bottom outlet of the syrup tank is connected with the saccharifying section through a syrup tank output pump; a solid phase outlet of the horizontal screw centrifuge is connected with a protein buffer tank; a bottom outlet of the protein buffer tank is connected with a protein washing section through a protein slurry delivery pump. The device can be used for separating syrup from solid-phase protein, no rime fog or water hammer phenomenon is generated in the liquefaction process, the energy consumption is low, and the environmental benefit is good.

Description

Technical Field

[0001] The utility model relates to a broken rice processing system, in particular to a rice slurry liquefaction separation processing device, belonging to the technical field of rice slurry 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 enterprises. Broken rice starch can be liquefied after pulping to produce crystalline sugar.

[0004] The Chinese invention patent with announcement number CN101555508B discloses a method for producing crystalline glucose from rice. The crystalline glucose is obtained by taking rice as raw material through soaking and grinding, slurry adjustment, liquefaction and slag removal, saccharification, primary neutralization and filtration, secondary neutralization and filtration, ion exchange, concentration and refining, crystallization and drying steps.

[0005] However, the above technical solutions and the prior art have the following defects: 1. The flash evaporation waste gas after liquefaction injection is not recycled, and the cooling before saccharification is directly cooled by cooling water, which reduces heat recovery and increases steam consumption and circulating water usage;

[0006] 2. Use chamber filter press or plate and frame filter press to separate syrup and protein, which has many dead corners and easily produces black and hardened protein between the plates and frames, affecting the subsequent deep processing of the protein;

[0007] 3. In the deep processing process, the rice slurry must be liquefied first. The liquefaction injection process is the process of mixing the liquid and steam. If it is not handled properly, water hammer phenomenon is likely to occur, and the vibration of the liquefaction device is large, which affects the stable operation of the device;

[0008] 4. Directly discharging the secondary steam from liquefied flash evaporation will produce a large amount of white mist, which has a great visual impact and creates great environmental pressure. It is necessary to control and utilize the secondary flash steam to reduce energy consumption and improve the level of automation. Some companies recover the heat energy of the secondary steam from liquefied flash evaporation to make hot water for use in the system, but the overall heat utilization efficiency is very low or not utilized at all. Therefore, a new process solution for efficient control and utilization of secondary flash steam is needed to reduce energy consumption and improve the level of automation;

[0009] 5. The solid content in the liquefied liquid is high and is easy to precipitate, resulting in inability to produce continuously. Utility Model Content

[0010] 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.

[0011] In view of the above problems and / or the problems existing in the prior art, the present utility model is proposed.

[0012] The utility model aims to overcome the problems existing in the prior art and provide a rice slurry liquefaction separation processing device, which can reliably separate syrup and solid-phase protein after the rice slurry is liquefied, and no white mist and water hammer phenomenon are generated during the liquefaction process, the energy consumption is low, and the environmental benefits are good.

[0013] In order to solve the above technical problems, the utility model provides a rice slurry liquefaction separation processing device, comprising a rice slurry conveying pipe, the outlet of the rice slurry conveying pipe is connected to the material inlet of an ejector, the steam inlet of the ejector is connected to the steam pipe, the outlet of the ejector is connected to the inlet of a maintaining pipe, the outlet of the maintaining pipe is connected to the inlet of a gelatinization flash tank, the bottom outlet of the gelatinization flash tank is connected to the upper inlet of a liquefaction reaction laminar flow tank through a liquefied liquid pump, the bottom outlet of the liquefaction reaction laminar flow tank is connected to the inlet of a syrup flash tank through a syrup pump, the bottom outlet of the syrup flash tank is connected to the inlet of a horizontal screw centrifuge through a flash discharge pump, the syrup clear liquid outlet of the horizontal screw centrifuge is connected to the inlet of a syrup tank, and the bottom outlet of the syrup tank is connected to a saccharification section through a syrup tank output pump; the solid phase outlet of the horizontal screw centrifuge is connected to the inlet of a protein buffer tank, and the bottom outlet of the protein buffer tank is connected to a protein washing section through a protein slurry conveying pump.

[0014] As an improvement of the present utility model, the outlet of the syrup tank output pump is connected to the hot side inlet of the plate heat exchanger, the hot side outlet of the plate heat exchanger is connected to the main inlet of the static mixer, the side inlet of the static mixer is connected to the acid addition pipeline, and the outlet of the static mixer is connected to the saccharification section.

[0015] As a further improvement of the utility model, the inlet pipe of the acid metering pump is inserted into the lower part of the acid storage tank, the outlet of the acid metering pump is connected to the side inlet of the static mixer, a pH sensor is provided on the outlet pipe of the static mixer, and the rotation speed of the acid metering pump is controlled by the pH value after mixing measured by the pH sensor.

[0016] As a further improvement of the utility model, the top flash steam outlet of the gelatinization flash tank is connected to the heat source inlet of the first-effect evaporator, and the top flash steam outlet of the syrup flash tank is connected to the heat source inlet of the second-effect evaporator.

[0017] As a further improvement of the utility model, a gelatinization flash steam temperature sensor is provided at the top flash steam outlet of the gelatinization flash tank, and the non-condensable gas outlet of the first-effect evaporator is connected to the vacuum system through a first-effect non-condensable gas regulating valve, and the opening of the first-effect non-condensable gas regulating valve is controlled by the flash steam temperature detected by the gelatinization flash steam temperature sensor.

[0018] As a further improvement of the utility model, a syrup flash steam temperature sensor is provided at the top flash steam outlet of the syrup flash tank, and the non-condensable gas outlet of the second-effect evaporator is connected to the vacuum system through a second-effect non-condensable gas regulating valve, and the opening of the second-effect non-condensable gas regulating valve is controlled by the flash steam temperature detected by the syrup flash steam temperature sensor.

[0019] As a further improvement of the utility model, the maintenance pipe includes multiple layers extending downward layer by layer along the square spiral, each layer is respectively provided with the same inclination angle for downward flow, and a maintenance pipe discharge port is respectively provided at the lowest point of each layer.

[0020] As a further improvement of the utility model, the liquefaction reaction laminar flow tank is provided with multiple layers of partitions along the height direction, each partition is evenly distributed with through holes, each compartment is provided with a stirring blade, and each stirring blade is fixed on a stirring shaft extending along the axis.

[0021] As a further improvement of the utility model, the inlet pipeline of the horizontal screw centrifuge is installed with a syrup flowmeter and a syrup regulating valve, and the opening of the syrup regulating valve is controlled by the flow of the syrup flowmeter.

[0022] As a further improvement of the utility model, the water inlet of the protein buffer tank is connected to the RO water pipe, and an RO water flow meter and an RO water regulating valve are installed on the RO water pipe. The opening of the RO water regulating valve is interlocked with the flow of the RO water flow meter and the flow of the syrup flow meter.

[0023] Compared with the prior art, the utility model has achieved the following beneficial effects: 1. The maintenance pipe designed in the device has a gravity angle from the inlet to the outlet. After stopping, the material will flow into the gelatinization flash tank along the gravity angle, and will not accumulate in the pipeline to cause water hammer phenomenon caused by the contact between steam and liquid when starting up, and will not cause vibration of the jet liquefaction device, ensuring the normal and stable operation of the jet liquefaction device. At the same time, there is a drain valve at the bottom of each gravity angle to ensure more thorough drainage;

[0024] 2. This device adopts an integrated design of liquefaction and evaporation. The secondary steam generated by liquefaction is directly used as a heat source for evaporation in the first-effect evaporator, which improves heat utilization efficiency and reduces steam consumption. At the same time, the liquefaction temperature can be accurately controlled to achieve the best reaction effect of liquefaction. At the same time, the secondary flash steam after liquefaction is cooled. The flash steam is used by the second-effect evaporator to reduce the temperature of the syrup and achieve the best separation effect of the horizontal screw. Similarly, because saccharification requires cooling, the secondary flash evaporation cooling can also reduce the consumption of cooling circulating water before saccharification;

[0025] 3. The liquefied flash steam is used as the heat source of the evaporation system to reduce the energy consumption of the evaporation system. At the same time, the secondary steam is not discharged to the outside, and no white mist phenomenon is generated;

[0026] 4. The liquefaction reaction tank is changed from a traditional laminar flow tank to a vertical laminar flow tank with stirring and multi-layer partitions to ensure smooth first-in-first-out of materials and achieve the best liquefaction effect;

[0027] 5. Use decanter filter to replace plate and frame filter press for protein separation, which has no sanitary dead corners and no risk of plasticizers, meeting the production needs of food-grade protein; it can realize continuous production, without the need to clean the plate and frame filter cloth, and has low labor intensity; at the same time, the protein separated by decanter filter is loose, and it is easy to wash in the subsequent process;

[0028] 6. This device deeply processes the broken rice produced during rice processing, refines protein to make food-grade protein, liquefies starch to make crystalline sugar, rationally utilizes the effective ingredients in the broken rice, and increases factory profits and product added value by saving energy and reducing consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] 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:

[0030] Figure 1 This is a flow chart of the rice slurry liquefaction separation processing device of the utility model;

[0031] Figure 2 This is a front view of the maintenance tube in the utility model;

[0032] Figure 3 for Figure 2 Left view of

[0033] Figure 4 for Figure 2 Stereoscopic image of

[0034] In the figure: rice slurry delivery pipe 100; ejector 201; ejector needle valve TC201; temperature sensor TT201; steam regulating valve PC201; pressure sensor PA201; maintenance pipe 202; maintenance pipe inlet 202a; maintenance pipe outlet 202b; maintenance pipe sewage outlet 202c; gelatinization flash tank 203; liquefied liquid pump 204; liquefaction reaction laminar flow tank 205; syrup pump 206; syrup flash tank 207; flash discharge pump 208; horizontal screw centrifuge 209; syrup flowmeter FT209; syrup Regulating valve FC209; protein buffer tank 210; RO water flow meter FT210; RO water regulating valve FC210; protein slurry delivery pump 211; syrup tank 212; syrup tank output pump 213; plate heat exchanger 214; cooling water regulating valve TC214; cooling syrup temperature sensor TT214; static mixer 215; pH sensor PH215; acid storage tank 216; acid metering pump 217; saccharification section 300; first effect evaporator 401; second effect evaporator 402; protein washing section 500. DETAILED DESCRIPTION

[0035] 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.

[0036] 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 part of the embodiments of the present invention, not all of them.

[0037] 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.

[0038] like Figure 1As shown, the rice slurry liquefaction and separation processing device of the utility model includes an ejector 201, a maintenance tube 202, a gelatinization flash tank 203, a liquefied liquid pump 204, a liquefaction reaction laminar flow tank 205, a syrup pump 206, a syrup flash tank 207, a flash discharge pump 208, a horizontal screw centrifuge 209, a protein buffer tank 210, a protein slurry delivery pump 211, a syrup tank 212, a syrup tank output pump 213, a plate heat exchanger 214, a static mixer 215, an acid storage tank 216 and an acid metering pump 217.

[0039] The outlet of rice slurry conveying pipe 100 is connected to the material inlet of ejector 201, the steam inlet of ejector 201 is connected to the steam pipe, the outlet of ejector 201 is connected to the inlet of maintaining pipe 202, the outlet of maintaining pipe 202 is connected to the inlet of gelatinization flash tank 203, the bottom outlet of gelatinization flash tank 203 is connected to the upper inlet of liquefaction reaction laminar flow tank 205 through liquefied liquid pump 204, the bottom outlet of liquefaction reaction laminar flow tank 205 is connected to the inlet of syrup flash tank 207 through syrup pump 206, the bottom outlet of syrup flash tank 207 is connected to the inlet of horizontal screw centrifuge 209 through flash discharging pump 208, the syrup clear liquid outlet of horizontal screw centrifuge 209 is connected to the inlet of syrup tank 212, and the bottom outlet of syrup tank 212 is connected to the inlet of syrup tank output pump 213.

[0040] The solid phase outlet of the horizontal screw centrifuge 209 is connected to the inlet of the protein buffer tank 210, and the water inlet of the protein buffer tank 210 is connected to the RO water pipe, on which the RO water flow meter FT210 and the RO water regulating valve FC210 are installed; the bottom outlet of the protein buffer tank 210 is connected to the protein washing section 500 through the protein slurry delivery pump 211.

[0041] The outlet of the syrup tank output pump 213 is connected to the hot side inlet of the plate heat exchanger 214, the cold side of the plate heat exchanger 214 is connected to the cooling water circulation pipe, and a cooling water regulating valve TC214 is installed at the cold side inlet. The opening of the cooling water regulating valve TC214 is controlled by the cooling syrup temperature sensor TT214 at the hot side outlet of the plate heat exchanger 214.

[0042] The hot side outlet of the plate heat exchanger 214 is connected to the main inlet of the static mixer 215, the mixing inlet of the static mixer 215 is connected to the acid adding pipeline, and the outlet of the static mixer 215 is connected to the saccharification section 300. The inlet pipeline of the acid metering pump 217 is inserted into the lower part of the acid storage tank 216, and the outlet of the acid metering pump 217 is connected to the mixing inlet of the static mixer 215.

[0043] The top flash steam outlet of the gelatinization flash tank 203 is connected to the heat source inlet of the first-effect evaporator 401 , and the top flash steam outlet of the syrup flash tank 207 is connected to the heat source inlet of the second-effect evaporator 402 .

[0044] The top flash steam outlet of the gelatinization flash tank 203 is provided with a gelatinization flash steam temperature sensor TT203, and the non-condensable gas outlet of the first-effect evaporator 401 is connected to the vacuum system through a first-effect non-condensable gas regulating valve, and the opening of the first-effect non-condensable gas regulating valve is controlled by the flash steam temperature detected by the gelatinization flash steam temperature sensor TT203.

[0045] A syrup flash steam temperature sensor TT207 is provided at the top flash steam outlet of the syrup flash tank 207, and the non-condensable gas outlet of the second-effect evaporator 402 is connected to the vacuum system through the second-effect non-condensable gas regulating valve. The opening of the second-effect non-condensable gas regulating valve is controlled by the flash steam temperature detected by the syrup flash steam temperature sensor TT207.

[0046] like Figures 2 to 4 As shown, the maintenance pipe 202 includes multiple layers extending downward layer by layer along a square spiral, each layer is provided with the same inclination angle for downward flow, and a maintenance pipe drain port 202c is provided at the lowest point of each layer. The maintenance pipe inlet 202a is located at the highest point of the top layer, and the maintenance pipe outlet 202b is located at the lowest point of the bottom layer. The rice slurry is rapidly gelatinized during the spiral downward flow along the maintenance pipe 202 layer by layer. When the production is stopped, the rice slurry can flow downstream along the slope of the maintenance pipe 202 and be discharged through the drain ports of each layer, so as to avoid the water hammer phenomenon caused by the contact between steam and liquid material at the beginning of the start-up due to material retention.

[0047] The liquefaction reaction laminar flow tank 205 is provided with multiple layers of partitions along the height direction, each partition is evenly distributed with through holes, each compartment is provided with a stirring blade, and each stirring blade is fixed on a stirring shaft extending along the axis.

[0048] The rice slurry after adjusting the pH value and adding the liquefaction enzyme is sent out through the rice slurry conveying pipe 100, enters the ejector 201 and is mixed with steam for heating. The outlet of the ejector 201 is provided with a temperature sensor TT201, and the ejector 201 is equipped with an ejector needle valve TC201. The opening of the ejector needle valve TC201 is linked to the temperature measured by the temperature sensor TT201 to realize automatic control.

[0049] At the same time, a steam regulating valve PC201 and a pressure sensor PA201 are installed on the steam pipeline. The opening of the steam regulating valve PC201 is controlled according to the pressure measured by the pressure sensor PA201, so that the steam pressure entering the ejector 201 is maintained stable and precise control is achieved.

[0050] The rice slurry ejected by the ejector 201 enters the maintenance tube 202 and is maintained for 35 minutes to allow the rice slurry to gelatinize quickly. The gelatinized rice slurry enters the gelatinization flash tank 203 for flash evaporation and is cooled to 95°C. The flash steam of the gelatinization flash tank 203 enters the first-effect evaporator 401. The opening of the non-condensable gas regulating valve of the first-effect evaporator 401 is linked with the flash temperature in the gelatinization flash tank 203. Controlling the amount of flash steam can control the temperature of the liquefied liquid in the gelatinization flash tank 203. The larger the flash volume, the lower the temperature of the liquefied liquid. Normally, a regulating valve is added to the secondary steam pipeline at the outlet of the gelatinization flash tank 203 for control. The device adds a regulating valve to the non-condensable gas pipeline of the evaporator to control the secondary steam extraction volume to achieve the effect of controlling the temperature of the liquefied liquid in the gelatinization flash tank 203. This control scheme has two advantages:

[0051] 1. Reduce costs, because most of the secondary steam is condensed into condensed water by the evaporator, and only a small amount of non-condensable gas flows out from the non-condensable gas pipeline, so the type of the regulating valve on the non-condensable gas pipeline can be reduced;

[0052] 2. Not only the temperature of the gelatinization flash tank 203 can be controlled, but also the vacuum degree of the gelatinization flash tank 203 can be controlled.

[0053] The cooled liquefied liquid flows out from the bottom of the gelatinization flash tank 203 and is transported by the liquefied liquid pump 204 to the liquefaction reaction laminar flow tank 205 for liquefaction. The speed and flow rate of the liquefied liquid pump 204 are controlled by the liquid level of the gelatinization flash tank 203.

[0054] After the liquefaction is completed, the rice slurry liquefied liquid is discharged from the bottom of the liquefaction reaction laminar flow tank 205, and is transported to the syrup flash tank 207 by the syrup pump 206 for flash evaporation and cooling again. The flash steam of the syrup flash tank 207 enters the second-effect evaporator 402. The cooled liquefied liquid is discharged from the bottom of the syrup flash tank 207, and is sent to the horizontal screw centrifuge 209 by the flash discharge pump 208 for solid-liquid separation.

[0055] The pipeline between the outlet of the flash discharge pump (208) and the inlet of the horizontal screw centrifuge 209 is installed with a syrup flow meter FT209 and a syrup regulating valve FC209. The opening of the syrup regulating valve FC209 is controlled by the flow of the syrup flow meter FT209.

[0056] The light phase clear liquid separated by the horizontal screw centrifuge 209 is syrup, and the heavy phase is solid phase protein. The light phase syrup enters the syrup tank 212, and is transported to the hot side of the plate heat exchanger 214 through the syrup tank output pump 213 for cooling. The cold side medium of the plate heat exchanger 214 is circulating cooling water.

[0057] A static mixer 215 is installed on the liquefied liquid main pipeline at the hot side outlet of the plate heat exchanger 214 , the inlet pipeline of the acid metering pump 217 is inserted into the lower part of the acid storage tank 216 , and the outlet pipeline of the acid metering pump 217 is connected to the mixing inlet of the static mixer 215 .

[0058] A pH sensor PH215 is installed on the outlet mixing pipeline of the static mixer 215. The cooled liquefied liquid is automatically acidified by the acid metering pump 217, and the acid and the material are mixed in the static mixer 215. The speed and acid addition flow of the acid metering pump 217 are automatically linked with the pH value measured by the pH sensor PH215, and the liquefied liquid after the pH value is adjusted is desaccharified in the section 300.

[0059] The solid phase protein separated by the horizontal screw centrifuge 209 enters the protein buffer tank 210 for temporary storage. The water inlet of the protein buffer tank 210 is connected to the RO water pipe. The RO water pipe is installed with an RO water flow meter FT210 and an RO water regulating valve FC210. ​​The opening of the RO water regulating valve FC210 is interlocked with the flow of the RO water flow meter FT210 and the flow of the syrup flow meter FT209. In the protein buffer tank 210, the protein and RO water are mixed online in a certain proportion, and the mixed protein slurry is transported to the protein washing section 500 by the protein slurry delivery pump 211.

[0060] 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 slurry liquefaction separation processing device, comprising a rice slurry conveying pipe (100), characterized in that: The outlet of the rice slurry delivery pipe (100) is connected to the material inlet of the ejector (201), the steam inlet of the ejector (201) is connected to the steam pipe, the outlet of the ejector (201) is connected to the inlet of the maintenance pipe (202), the outlet of the maintenance pipe (202) is connected to the inlet of the gelatinization flash tank (203), the bottom outlet of the gelatinization flash tank (203) is connected to the upper inlet of the liquefaction reaction laminar flow tank (205) through the liquefied liquid pump (204), the bottom outlet of the liquefaction reaction laminar flow tank (205) is connected to the inlet of the syrup flash tank (207) through the syrup pump (206). The bottom outlet of the syrup flash tank (207) is connected to the inlet of the horizontal screw centrifuge (209) through the flash discharge pump (208), the syrup clear liquid outlet of the horizontal screw centrifuge (209) is connected to the inlet of the syrup tank (212), and the bottom outlet of the syrup tank (212) is connected to the saccharification section (300) through the syrup tank output pump (213); the solid phase outlet of the horizontal screw centrifuge (209) is connected to the inlet of the protein buffer tank (210), and the bottom outlet of the protein buffer tank (210) is connected to the protein washing section (500) through the protein slurry delivery pump (211).

2. The rice milk liquefaction separation processing device according to claim 1, characterized in that: The outlet of the syrup tank output pump (213) is connected to the hot side inlet of the plate heat exchanger (214), the hot side outlet of the plate heat exchanger (214) is connected to the main inlet of the static mixer (215), the side inlet of the static mixer (215) is connected to the acid addition pipeline, and the outlet of the static mixer (215) is connected to the saccharification section (300).

3. The rice milk liquefaction separation processing device according to claim 2, characterized in that: The inlet pipe of the acid metering pump (217) is inserted into the lower part of the acid storage tank (216), the outlet of the acid metering pump (217) is connected to the side inlet of the static mixer (215), the outlet pipe of the static mixer (215) is provided with a pH sensor (PH215), and the rotation speed of the acid metering pump (217) is controlled by the pH value after mixing measured by the pH sensor (PH215).

4. The rice milk liquefaction separation processing device according to claim 1, characterized in that: The top flash steam outlet of the gelatinization flash tank (203) is connected to the heat source inlet of the first-effect evaporator (401), and the top flash steam outlet of the syrup flash tank (207) is connected to the heat source inlet of the second-effect evaporator (402).

5. The rice milk liquefaction separation processing device according to claim 4, characterized in that: A gelatinization flash steam temperature sensor (TT203) is provided at the top flash steam outlet of the gelatinization flash tank (203), and the non-condensable gas outlet of the first-effect evaporator (401) is connected to the vacuum system via a first-effect non-condensable gas regulating valve, and the opening of the first-effect non-condensable gas regulating valve is controlled by the flash steam temperature detected by the gelatinization flash steam temperature sensor (TT203).

6. The rice milk liquefaction separation processing device according to claim 4, characterized in that: A syrup flash steam temperature sensor (TT207) is provided at the top flash steam outlet of the syrup flash tank (207), and the non-condensable gas outlet of the second-effect evaporator (402) is connected to the vacuum system through a second-effect non-condensable gas regulating valve, and the opening of the second-effect non-condensable gas regulating valve is controlled by the flash steam temperature detected by the syrup flash steam temperature sensor (TT207).

7. The rice milk liquefaction separation processing device according to claim 1, characterized in that: The maintenance pipe (202) comprises multiple layers extending downward layer by layer along a square spiral, each layer is provided with the same inclination angle for downward flow, and a maintenance pipe discharge port is provided at the lowest point of each layer.

8. The rice milk liquefaction separation processing device according to claim 1, characterized in that: The liquefaction reaction laminar flow tank (205) is provided with multiple layers of partitions along the height direction, each partition is evenly distributed with through holes, each compartment is provided with a stirring blade, and each stirring blade is fixed on a stirring shaft extending along the axis.

9. The rice milk liquefaction separation processing device according to claim 1, characterized in that: The inlet pipeline of the horizontal screw centrifuge (209) is installed with a syrup flow meter (FT209) and a syrup regulating valve (FC209), and the opening of the syrup regulating valve (FC209) is controlled by the flow of the syrup flow meter (FT209).

10. The rice milk liquefaction separation processing device according to claim 9, characterized in that: The water inlet of the protein buffer tank (210) is connected to the RO water pipe, and the RO water pipe is installed with an RO water flow meter (FT210) and an RO water regulating valve (FC210). The opening of the RO water regulating valve (FC210) is interlocked with the flow of the RO water flow meter (FT210) and the flow of the syrup flow meter (FT209).

Images