Low-energy-consumption high-quality rice bran steaming system

Abstract

The utility model discloses a low-energy-consumption high-quality rice bran steaming system. An outlet of a rice bran articulated chute is connected with an inlet of a rice bran steaming machine through an iron remover, a rice bran cleaning sieve, a scraper conveyor and an elevator; the upper three layers of the rice bran steaming machine are steam steaming layers, the lower parts are a hot air drying layer and an air cooling layer, and the tops of a steam interlayer, a hot air interlayer and a cold air interlayer below each layer are respectively provided with a punching sieve plate; a drainage port of the steam interlayer is connected with a medium-temperature condensate water tank through a water seal, an outlet of the medium-temperature condensate water tank is connected with a hot side inlet of an air-water heat exchanger through a medium-temperature condensate water pump, and a hot side outlet of the air-water heat exchanger is connected with a low-temperature condensate water tank. An outlet of the low-temperature condensate water tank is connected with a top water spraying opening of the rice bran steaming machine through a low-temperature condensate water pump; a cold side inlet of the air-water heat exchanger is communicated with atmosphere, and a cold side outlet of the air-water heat exchanger is connected with an air inlet of the hot air interlayer; an inlet of the cold air interlayer communicates with the atmosphere. The system is low in steam consumption, capable of achieving continuous production and environmentally friendly.

Description

Technical Field

[0001] This utility model relates to a rice bran steaming system, and more particularly to a low-energy, high-quality rice bran steaming system, belonging to the technical field of brewing auxiliary equipment. Background Technology

[0002] Millet husks, the outer shell of millet, are an important component in the solid-state fermentation of light-aroma baijiu (Chinese white liquor). During solid-state brewing, millet husks are used as an auxiliary material, serving as an excellent filler with good water absorption and binding properties, ensuring breathability during brewing. However, in addition to containing pectin and pentosans that affect the quality of baijiu, millet husks also carry off-flavors and a raw bran taste, which can negatively impact the flavor of the liquor. Therefore, before use, millet husks must undergo impurity removal, including a period of steaming and cooling, to remove these harmful components.

[0003] Currently, in brewing processes, small-scale steaming of rice husks commonly uses steamers or baskets, while large-scale steaming employs steaming rooms, steaming boxes, or tunnel-type steaming machines. The main problems are as follows:

[0004] 1. In the existing production process, the steaming is carried out directly in a tank and manually. This steaming method will lead to a series of problems such as poor on-site environment, high steam consumption (0.7 tons of steam are required to produce 1 ton of rice bran) and discontinuous production.

[0005] 2. The incoming materials contain many impurities, broken particles, and dust, which can easily affect the flavor of the final product.

[0006] 3. The exhaust gas after steaming is not treated and is discharged at will, causing great environmental pollution. The moisture content of the rice husks is uneven after steaming, which affects the quality of the wine.

[0007] 4. The distribution of finished products is uncontrolled, unstable, and the on-site environment is poor. The distribution cannot be automated, and the manual labor intensity is high. Furthermore, the distribution is not measured, production is not controlled, and data management is not possible. Utility Model Content

[0008] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0009] In view of the problems existing in the above and / or prior art, this utility model is proposed.

[0010] The purpose of this invention is to overcome the problems existing in the prior art and provide a low-energy, high-quality rice bran steaming system with low steam consumption, continuous production capability, prevention of steam leakage, and environmental friendliness.

[0011] To solve the above technical problems, this utility model provides a low-energy, high-quality rice husk steaming system, including a rice husk chute, the outlet of which is connected to the inlet of an iron separator, the outlet of which is connected to the inlet of a rice husk cleaning screen, the outlet of which is connected to the inlet of a scraper conveyor, the outlet of which is connected to the lower inlet of an elevator, and the upper outlet of which is connected to the upper feed inlet of the rice husk steaming machine.

[0012] The upper three layers of the rice husk steamer are steam steaming layers, and each steam steaming layer has a steam jacket at the bottom; the fourth layer is a hot air drying layer, and the bottom of the hot air drying layer has a hot air jacket; the fifth layer is an air cooling layer, and the bottom of the air cooling layer has a cold air jacket; the top of the steam jacket, the hot air jacket and the cold air jacket are respectively equipped with perforated screen plates.

[0013] The steam jacket's air inlet is connected to the steam pipe, and the steam jacket's drain outlet is connected to the medium-temperature condensate tank via a condensate drain pipe and a water seal. The medium-temperature condensate tank's outlet is connected to the hot-side inlet of the air-water heat exchanger via a medium-temperature condensate pump. The air-water heat exchanger's hot-side outlet is connected to the low-temperature condensate tank, and the low-temperature condensate tank's outlet is connected to the top water spray outlet of the rice husk steamer via a low-temperature condensate pump. The air-water heat exchanger's cold-side inlet is open to the atmosphere, and its cold-side outlet is connected to the air inlet of the hot air jacket. The cold air jacket's inlet is open to the atmosphere.

[0014] As an improvement of this utility model, the bottom outlet of the rice husk steamer is connected to the inlet of the scraper conveyor II, the outlet of the scraper conveyor II is connected to the lower inlet of the elevator II, the upper outlet of the elevator II is connected to the inlet of the temporary storage bin, the bottom outlet of the temporary storage bin is provided with a discharge auger, and the outlet of the discharge auger is connected to the discharge telescopic chute.

[0015] As a further improvement of this utility model, a ground scale is provided below the discharge telescopic chute.

[0016] As a further improvement of this utility model, the exhaust hood outlet of the rice husk cleaning screen and the dust suction port of the scraper conveyor are respectively connected to the air inlet of the pulse dust collector through air ducts, and the air outlet of the pulse dust collector is vented to the atmosphere through the induced draft fan.

[0017] As a further improvement of this utility model, the lower sidewalls of the hot air drying layer and the air cooling layer of the rice husk steamer are respectively connected to fire-fighting steam pipes.

[0018] As a further improvement of this utility model, the upper air outlets of the hot air drying layer and the air cooling layer of the rice bran steamer are connected to the air inlet of the saxophone through exhaust valves and exhaust pipes, respectively. The air outlet of the saxophone is connected to the air inlet of the side wall of the washing tower through the second induced draft fan. The air outlet at the top of the washing tower is connected to the atmosphere through the third induced draft fan.

[0019] As a further improvement of this utility model, the air outlets on the upper side wall of the steaming layer of the rice husk steamer are connected to the steam exhaust pipe through steam exhaust valves, and the outlet of the steam exhaust pipe is connected to the air inlet pipe of the washing tower.

[0020] As a further improvement of this utility model, the bottom of the steam exhaust pipe is provided with an air inlet and an air inlet valve is installed.

[0021] As a further improvement of this utility model, the upper dust suction port of the discharge telescopic chute is connected to the air inlet of the pulse dust collector II through a dust removal pipe, and the air outlet of the pulse dust collector II is connected to the atmosphere through an induced draft fan.

[0022] As a further improvement of this utility model, the water inlet of the washing tower is connected to the greywater pipe, the bottom outlet of the washing tower is connected to the inlet of the washing pump through a filter unit, and the outlet of the washing pump is connected to the top spray nozzle of the washing tower and the sewage treatment station.

[0023] Compared with the prior art, the present invention has achieved the following beneficial effects: 1. The rice bran after steaming by this system has fewer impurities, realizes continuous production, and the rice bran has uniform moisture content and stable quality after steaming, thus ensuring the flavor of the wine.

[0024] 2. Producing 1 ton of rice bran requires only 0.25 tons of steam, reducing steam consumption by more than 64%;

[0025] 3. It eliminated the unorganized spillage of exhaust gases and improved the on-site environment;

[0026] 4. The temporary storage bin uses a multi-section auger to avoid material blockage during dispensing. It also features automatic metering and dispensing, precise control of the amount added, and easy data management. The entire system is fully automated, requiring no manual operation and reducing labor costs. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The drawings are provided for reference and illustration only and are not intended to limit this utility model. Wherein:

[0028] Figure 1 The flowchart of the low-energy-consumption, high-quality rice bran steaming system of this utility model is shown below;

[0029] In the diagram: 1. Magnetic separator; 2. Rice husk cleaning screen; 3. Scraper conveyor 1; 4. Elevator 1; 5. Pulse dust collector 1; 6. Exhaust fan 1; 7. Rice husk steamer; 8. Medium-temperature condensate tank; 9. Medium-temperature condensate pump; 10. Air-water heat exchanger; 11. Low-temperature condensate tank; 12. Low-temperature condensate pump; 13. Cyclone; 14. Exhaust fan 2; 15. Washing tower; 16. Washing pump; 17. Exhaust fan 3; 18. Scraper conveyor 2; 19. Elevator 2; 20. Temporary storage bin; 21. Multi-unit discharge auger; 22. Discharge telescopic chute; 23. Floor scale; 24. Pulse dust collector 2; 25. Exhaust fan 4; 26. Wastewater treatment plant;

[0030] G1. Rice husk chute; G2. Steam pipe; G3. Fire-fighting steam pipe; G4. Steam exhaust pipe; G4a. Make-up air valve; G5. Greywater pipe. Detailed Implementation

[0031] In the following description of this utility model, the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not mean that the device must have a specific orientation.

[0032] To make the technical means, creative features, achieved objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0034] like Figure 1 As shown, the low-energy-consumption, high-quality rice husk steaming system of this utility model includes a rice husk chute G1, an iron separator 1, a rice husk cleaning screen 2, and a rice husk steaming machine 7. The outlet of the rice husk chute G1 is connected to the inlet of the iron separator 1, the outlet of the iron separator 1 is connected to the inlet of the rice husk cleaning screen 2, the outlet of the rice husk cleaning screen 2 is connected to the inlet of the scraper conveyor 3, the outlet of the scraper conveyor 3 is connected to the lower inlet of the elevator 4, and the upper outlet of the elevator 4 is connected to the upper feed inlet of the rice husk steaming machine 7.

[0035] The upper three layers of the rice husk steamer are steam steaming layers, and each steam steaming layer has a steam jacket at the bottom; the fourth layer is a hot air drying layer, and the bottom of the hot air drying layer has a hot air jacket; the fifth layer is an air cooling layer, and the bottom of the air cooling layer has a cold air jacket; the top of the steam jacket, the hot air jacket and the cold air jacket are respectively equipped with perforated screen plates.

[0036] The steam jacket's air inlet is connected to the steam pipe G2. The steam jacket's drain outlet is connected to the medium-temperature condensate tank 8 via a condensate drain pipe and a water seal. The outlet of the medium-temperature condensate tank 8 is connected to the hot-side inlet of the air-water heat exchanger 10 via a medium-temperature condensate pump 9. The hot-side outlet of the air-water heat exchanger 10 is connected to the low-temperature condensate tank 11. The outlet of the low-temperature condensate tank 11 is connected to the top water spray outlet of the rice husk steamer 7 via a low-temperature condensate pump 12. The cold-side inlet of the air-water heat exchanger 10 is open to the atmosphere. The cold-side outlet of the air-water heat exchanger 10 is connected to the air inlet of the hot air jacket. The inlet of the cold air jacket is open to the atmosphere.

[0037] The bottom outlet of the rice husk steamer 7 is connected to the inlet of the scraper conveyor 2 18, the outlet of the scraper conveyor 2 18 is connected to the lower inlet of the elevator 2 19, the upper outlet of the elevator 2 19 is connected to the inlet of the temporary storage bin 20, the bottom outlet of the temporary storage bin 20 is equipped with a discharge auger, the outlet of the discharge auger is connected to the discharge telescopic chute 22, and a ground scale 23 is provided below the discharge telescopic chute 22.

[0038] The exhaust hood outlet of the rice hull cleaning screen 2 and the dust suction port of the scraper conveyor 3 are connected to the air inlet of the pulse dust collector 5 via air ducts. The air outlet of the pulse dust collector 5 is vented to the atmosphere via the induced draft fan 6. Dust generated during screening and conveying enters the pulse dust collector 5 for dust removal before being discharged.

[0039] The lower side walls of the hot air drying layer and the air cooling layer of the rice husk steamer 7 are connected to the fire-fighting steam pipe G3. When a fire occurs in the rice husk steamer 7, the valve of the fire-fighting steam pipe G3 is quickly opened to spray steam to extinguish the fire.

[0040] The upper air outlets on the side walls of the hot air drying layer and the air cooling layer of the rice husk steamer 7 are connected to the air inlet of the cyclone separator 13 via exhaust valves and exhaust pipes. The air outlet of the cyclone separator 13 is connected to the air inlet on the side wall of the washing tower 15 via an induced draft fan 2 14. The top air outlet of the washing tower 15 is vented to the atmosphere via an induced draft fan 3 17. The material in the hot air drying layer and the air cooling layer is relatively dry and has a high dust content. It first enters the cyclone separator 13 for centrifugal separation and then enters the washing tower 15 for washing.

[0041] The air outlets on the upper side wall of the steaming layer of the rice husk steamer 7 are connected to the steam exhaust pipe G4 via steam exhaust valves. The outlet of the steam exhaust pipe G4 is connected to the air inlet pipe of the washing tower 15. The material in the steaming layer is relatively moist and has a low particle content, so it directly enters the washing tower 15 for washing.

[0042] The bottom of the steam exhaust pipe G4 is equipped with an air inlet and an air inlet valve G4a. A small amount of air can be introduced through the air inlet valve G4a to accurately control the steam cleaning layer in a slightly negative pressure state, avoid excessive steam extraction, and improve the utilization rate of steam.

[0043] Before steaming, the rice husks enter the iron remover 1 to remove iron-containing impurities, and then enter the rice husk cleaning screen 2 for sieving to remove dust, broken rice husks, and other impurities, ensuring the quality of the steamed rice husks. Next, they are conveyed by scraper conveyor 3 to elevator 4, which lifts them to a high position and then into the rice husk steamer 7 for steaming. Under the suction of the induced draft fan 6, the dust generated during the sieving process by the rice husk cleaning screen 2, the scraper conveyor 3, and the elevator 4 enters the pulse dust collector 5 for centralized dust removal before being discharged.

[0044] The rice husk steamer 7 adopts a closed continuous production mode. The upper three layers of the rice husk steamer 7 are steam steaming layers with direct steam heating, which can realize continuous steaming; the lower two layers are hot air drying layer and air cooling layer, which can dry and cool the steamed rice husks.

[0045] The first to third steaming layers: The upper layer of the rice bran steamer 7 enters from the top. Water is added from the top to moisten the rice bran. Water addition points are set at the center point, the middle of the radius, and near the outer perimeter. Under the action of the rotating agitator, the moisture content of the rice bran rises to 14%~15%, which increases the toughness of the rice bran and allows it to retain a certain "bones" after steaming. This ensures sufficient air permeability when mixing the five grains for brewing, so that the mash can maintain a certain oxygen content and looseness.

[0046] Each steam cleaning layer has a steam jacket at the bottom, with small holes evenly distributed on the jacket. Steam enters the rice husk layer evenly through these holes and into the middle of the rice husk. Under the action of the agitator, the steam and rice husk are fully mixed and fluidized, heating the rice husk and carrying away pectin, pentosans, furfural, and other off-odors with excess steam. Steam enters the rice husk from the bottom, and exhaust gas is discharged from the top. Because the steam enters the steaming machine through the evenly distributed small holes on the top of the steam layer, and the agitator stirs the rice husk and steam, the mixing of rice husk and steam is more uniform, resulting in more even steaming of the material.

[0047] After steaming, the rice husks enter the fourth drying layer for dehumidification and drying. Below the material is a hot air jacket with a perforated sieve plate. The air is heated by the air-water heat exchanger 10 and then enters the hot air jacket below the drying layer. The hot air enters the rice husk layer evenly through the sieve holes at the top of the jacket and enters the middle of the rice husks to dehumidify them and further remove furfural and other odors. The exhaust gas is discharged to the upper side wall of this layer and collected and discharged by the exhaust pipe.

[0048] After drying, the rice husks enter the fifth cooling layer for cooling. Below the material is a cold air jacket with a perforated sieve plate. Room temperature cold air enters the rice husk layer evenly through the top sieve holes of the breathable jacket, cooling the rice husks to 2-3°C higher than the ambient temperature to meet the requirements of subsequent use. The exhaust gas is discharged to the upper side wall of this layer and collected and discharged by the exhaust pipe.

[0049] Under the suction of the second induced draft fan 14, the exhaust gas discharged from the upper part of the fourth drying layer and the fifth cooling layer first enters the scythron 13 for separation; under the suction of the third induced draft fan 17, the exhaust gas discharged from the upper part of the first to third steam cleaning layers and the exhaust gas separated by the scythron 13 enter the scrubbing tower 15 for washing.

[0050] The water inlet of the scrubbing tower 15 is connected to the greywater pipe G5. The bottom outlet of the scrubbing tower 15 is connected to the inlet of the scrubbing pump 16 through a filter unit. The outlet of the scrubbing pump 16 is connected to the top spray nozzle of the scrubbing tower 15 and the wastewater treatment station 26. Greywater generated by other units in the workshop is used as the spray water for the scrubbing tower 15. After a certain number of cycles, when the concentration of the scrubbing water at the bottom of the tower is too high, it enters the wastewater treatment station 26 for treatment. The exhaust gas from the steaming process is collected centrally to ensure that the exhaust gas does not overflow. The exhaust gas is then discharged into the scrubbing tower 15 for treatment in an organized manner. The scrubbed exhaust gas meets the emission standards, ensuring a clean and tidy on-site environment.

[0051] The high-temperature condensate generated after heat exchange in the first to third steam cleaning layers enters the medium-temperature condensate tank 8 for temporary storage. Then, it is pumped by the medium-temperature condensate pump 9 to the hot side of the air-water heat exchanger 10 to heat the air on the cold side. The heated air then enters the fourth drying layer to dry the rice husks. The low-temperature condensate discharged from the hot side of the air-water heat exchanger 10 enters the low-temperature condensate tank 11 for temporary storage. Then, it is pumped by the low-temperature condensate pump 12 to the top of the rice husk steamer 7 to replenish the water in the rice husks. This achieves tiered utilization of heat, reducing steam consumption by more than half compared to traditional processes.

[0052] Rice husks discharged from the bottom of the rice husk steamer 7 are conveyed by scraper conveyor 218 into elevator 219, where they are lifted to a high position and stored in temporary storage bin 20. After the truck stops on the weighbridge 23, the outlet of the discharge telescopic chute 22 connects to the truck bed inlet. The multi-connected discharge auger 21 at the bottom of the temporary storage bin 20 discharges the rice husks in a variable frequency manner, dispensing them in quantitative quantities, which then enter the truck bed through the discharge telescopic chute 22. Dust generated during the discharge process is discharged from the top of the discharge telescopic chute 22 and enters the pulse dust collector 24 for centralized dust collection. After treatment, the dust is discharged, improving the on-site environment without the need for manual intervention. The dispensing is measured using the weighbridge 23, ensuring that the dispensing is statistically recorded and managed digitally.

[0053] The upper dust suction port of the discharge telescopic chute 22 is connected to the air inlet of the pulse dust collector 24 through a dust removal pipe. The air outlet of the pulse dust collector 24 is vented to the atmosphere through the induced draft fan 25. The dust generated during the discharge process is treated in the pulse dust collector 24 and discharged in compliance with standards.

[0054] The above description is merely a preferred embodiment of the present utility model, showing and describing the basic principles, main features, and advantages of the present utility model. It is not intended to limit the scope of patent protection of the present utility model. Those skilled in the art should understand that the present utility model is not limited to the above embodiments. In addition to the above embodiments, the present utility model may have other implementations without departing from the spirit and scope of the present utility model. Various changes and improvements to the present utility model are also possible. All technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of protection claimed by the present utility model. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents. Technical features not described in the present utility model can be implemented by or using existing technology, and will not be elaborated here.

Claims

1. A low-energy, high-quality rice husk steaming system, comprising a rice husk chute, characterized in that, The outlet of the rice husk chute is connected to the inlet of the iron separator, the outlet of the iron separator is connected to the inlet of the rice husk cleaning screen, the outlet of the rice husk cleaning screen is connected to the inlet of scraper conveyor 1, the outlet of scraper conveyor 1 is connected to the lower inlet of elevator 1, and the upper outlet of elevator 1 is connected to the upper feed inlet of the rice husk steamer. The upper three layers of the rice husk steamer are steam steaming layers, and each steam steaming layer has a steam jacket at the bottom; the fourth layer is a hot air drying layer, and the bottom of the hot air drying layer has a hot air jacket; the fifth layer is an air cooling layer, and the bottom of the air cooling layer has a cold air jacket; the top of the steam jacket, the hot air jacket and the cold air jacket are respectively equipped with perforated screen plates. The steam jacket's air inlet is connected to the steam pipe, and the steam jacket's drain outlet is connected to the medium-temperature condensate tank via a condensate drain pipe and a water seal. The medium-temperature condensate tank's outlet is connected to the hot-side inlet of the air-water heat exchanger via a medium-temperature condensate pump. The air-water heat exchanger's hot-side outlet is connected to the low-temperature condensate tank, and the low-temperature condensate tank's outlet is connected to the top water spray outlet of the rice husk steamer via a low-temperature condensate pump. The air-water heat exchanger's cold-side inlet is open to the atmosphere, and its cold-side outlet is connected to the air inlet of the hot air jacket. The cold air jacket's inlet is open to the atmosphere.

2. The low-energy, high-quality rice bran steaming system according to claim 1, characterized in that: The bottom outlet of the rice husk steamer is connected to the inlet of the scraper conveyor II, the outlet of the scraper conveyor II is connected to the lower inlet of the elevator II, the upper outlet of the elevator II is connected to the inlet of the temporary storage bin, the bottom outlet of the temporary storage bin is equipped with a discharge auger, and the outlet of the discharge auger is connected to the discharge telescopic chute.

3. The low-energy, high-quality rice bran steaming system according to claim 2, characterized in that: A ground scale is installed below the discharge telescopic chute.

4. The low-energy, high-quality rice bran steaming system according to claim 1, characterized in that: The exhaust hood outlet of the rice husk cleaning screen and the dust suction port of the scraper conveyor are respectively connected to the air inlet of the pulse dust collector through air ducts, and the air outlet of the pulse dust collector is vented to the atmosphere through the induced draft fan.

5. The low-energy, high-quality rice bran steaming system according to claim 1, characterized in that: The lower sidewalls of the hot air drying layer and the air cooling layer of the rice husk steamer are respectively connected to fire-fighting steam pipes.

6. The low-energy, high-quality rice bran steaming system according to claim 1, characterized in that: The upper air outlets of the hot air drying layer and the air cooling layer of the rice bran steamer are connected to the air inlet of the saxophone through exhaust valves and exhaust pipes, respectively. The air outlet of the saxophone is connected to the air inlet of the side wall of the washing tower through the second induced draft fan. The air outlet at the top of the washing tower is connected to the atmosphere through the third induced draft fan.

7. The low-energy, high-quality rice bran steaming system according to claim 6, characterized in that: The air outlets on the upper side wall of the steaming layer of the rice husk steamer are connected to the steam exhaust pipe via steam exhaust valves, and the outlet of the steam exhaust pipe is connected to the air inlet pipe of the washing tower.

8. The low-energy, high-quality rice bran steaming system according to claim 7, characterized in that: The bottom of the steam exhaust pipe is equipped with an air inlet and an air inlet valve.

9. The low-energy, high-quality rice bran steaming system according to claim 2, characterized in that: The upper dust suction port of the discharge telescopic chute is connected to the air inlet of the pulse dust collector II through a dust removal pipe, and the air outlet of the pulse dust collector II is vented to the atmosphere through an induced draft fan.

10. The low-energy, high-quality rice bran steaming system according to claim 6, characterized in that: The water inlet of the washing tower is connected to the greywater pipe, the bottom outlet of the washing tower is connected to the inlet of the washing pump through a filter unit, and the outlet of the washing pump is connected to the top spray nozzle of the washing tower and the sewage treatment station.

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