Natural organic microbial fermentation device for sweet sorghum treatment and use method thereof

Abstract

The invention discloses a natural organic microbial fermentation device for sweet sorghum treatment and a use method of the natural organic microbial fermentation device, and belongs to the technical field of microbial fermentation. Comprising a storage mechanism, a heat preservation mechanism and an inflation mechanism, the storage mechanism comprises a fermentation tank, the heat preservation mechanism comprises a heat preservation cover, the heat preservation cover is installed on the outer side of the fermentation tank, the storage mechanism further comprises an oxygen detector, a probe of the oxygen detector penetrates through the heat preservation cover to extend into the fermentation tank, and the inflation mechanism comprises a coil pipe installed at the bottom in the fermentation tank; a plurality of air outlet holes are formed in the top surface of the coil pipe, the open end of the coil pipe is connected with a pipeline, the pipeline communicates with a first air valve, the outer side of the pipeline communicates with a branch pipe, the branch pipe communicates with a second air valve, and the joint of the branch pipe and the pipeline is located between the first air valve and the free end of the pipeline; according to the technical scheme, the oxygen supply amount can be periodically changed to meet oxygen required by microbial fermentation at different temperatures, the oxygen content at different temperatures is controlled, and the aim of unifying the temperature and the oxygen content is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of microbial fermentation, in particular to a natural organic microbial fermentation device for sweet sorghum processing and a use method thereof. Background Art

[0002] Sweet sorghum is a crop with many excellent characteristics. It is rich in sugar and has rich stem juice. It can be used to produce a variety of bioenergy products such as ethanol and biogas. At the same time, its grains can also be used as food or feed. In recent years, with the emphasis on renewable energy and sustainable agricultural development, the planting area of ​​sweet sorghum has been expanding, and its comprehensive utilization value has become increasingly prominent.

[0003] Microbial fermentation is a key link in the comprehensive utilization of sweet sorghum. Through the action of microorganisms, sugars, cellulose and other substances in sweet sorghum can be converted into more valuable products, such as ethanol and organic acids.

[0004] The pretreated sweet sorghum is transported to the organic fertilizer fermentation tank, and the material is stirred by a stirring device to make the material quickly mixed and evenly mixed, ensuring the uniform distribution of microorganisms in the material and improving the efficiency of fermentation. Microorganisms will generate a lot of heat and consume a lot of oxygen during the fermentation process. The fermentation tank uses an aeration device to ensure that the oxygen content in the tank is sufficient, and the serpentine coil is used to ensure the temperature in the tank. By providing the microorganisms with suitable temperature and sufficient oxygen, the rate of microbial fermentation is guaranteed, and the output of organic fertilizer is increased. After fermentation, the organic fertilizer is transported out through the discharge port at the bottom of the fermentation tank.

[0005] During the microbial fermentation process, the fermentation tank is aerated by a blower. The oxygen blown by the blower flows into the fermentation tank through the stirring device to ensure that there is sufficient oxygen in the fermentation tank. However, as the temperature in the fermentation tank rises, the dissolved oxygen content in the fermentation tank decreases, causing the microbial fermentation rate to decrease. At this time, it is necessary to increase the oxygen intake to meet the needs of microbial fermentation. However, due to the fixed power of the blower, the temperature will rise and the aeration will be insufficient, which will lead to a decrease in the oxygen content in the fermentation tank, thereby causing a decrease in fermentation efficiency.

[0006] The prior art uses a Roots blower and a solenoid valve to set the power supply through a time controller, and automatically opens when the set time is reached to perform high-pressure blowing and oxygen aeration in the organic fertilizer fermentation tank. However, during the microbial fermentation process, a large amount of heat is generated as the microbial fermentation causes the dissolved oxygen content in the tank to be low, and timed aeration cannot meet the oxygen content requirements of the microorganisms at different temperature stages. Summary of the invention

[0007] The object of the present invention is to provide a natural organic microbial fermentation device for sweet sorghum processing and a method of using the same, so as to solve the problems raised in the above background technology.

[0008] In view of the above problems, the technical solution proposed by the present invention is: A natural organic microbial fermentation device for processing sweet sorghum comprises a storage mechanism, a heat preservation mechanism and an aeration mechanism, wherein the storage mechanism comprises a fermentation tank, the heat preservation mechanism comprises a heat preservation cover, the heat preservation cover is installed on the outside of the fermentation tank, the storage mechanism also comprises an oxygen detector, the probe of the oxygen detector passes through the heat preservation cover to the inside of the fermentation tank, the aeration mechanism comprises a coil installed at the bottom of the fermentation tank, a plurality of air outlets are formed on the top surface of the coil, an open end of the coil is connected to a pipeline, the pipeline is connected to a first air valve, the outside of the pipeline is connected to a branch pipe, the branch pipe is connected to a second air valve, and the connection between the branch pipe and the pipeline is located between the first air valve and the free end of the pipeline.

[0009] As a preferred technical solution of the present invention, the stirring mechanism also includes a first motor installed at the center of the top surface of the fermentation tank and a turntable rotatably arranged inside the fermentation tank, a rotating shaft is transmission-connected between the output end of the first motor and the center of the turntable, a first auger and a second auger are rotationally connected to the bottom surface of the turntable, a second motor and a third motor are installed on the top surface of the turntable, and the output end of the second motor is transmission-connected to the first auger, and the output end of the third motor is transmission-connected to the second auger.

[0010] As a preferred technical solution of the present invention, the first auger and the second auger are both arranged obliquely, and the length of the first auger is greater than the length of the second auger.

[0011] As a preferred technical solution of the present invention, the side surface of the turntable is in contact with the inner wall of the fermentation tank.

[0012] As a preferred technical solution of the present invention, a plurality of heat dissipation grooves are provided on the top surface of the fermentation tank.

[0013] Specifically, the first auger drives the culture medium at the bottom to the top, and the second auger drives the culture medium at the top to the middle. At the same time, the culture medium at the same level will be mixed together, and the revolution of the first auger and the second auger can perform the same treatment on the culture medium at all positions.

[0014] Specifically, a sealing treatment is performed between the turntable and the inner wall of the fermentation tank to ensure that water does not enter the second motor and the third motor, and the heat dissipation groove dissipates heat for the second motor and the third motor.

[0015] As a preferred technical solution of the present invention, a pressure relief valve is connected to the side of the fermentation tank.

[0016] Specifically, after the pressure in the fermentation tank exceeds the set value, the pressure relief valve will automatically open to ensure that the pressure in the fermentation tank is maintained at the set value.

[0017] As a preferred technical solution of the present invention, a plurality of support blocks for supporting the coils are installed on the inner bottom surface of the fermenter, and the coils are suspended.

[0018] As a preferred technical solution of the present invention, the outside of the fermentation tank is also connected to a feed pipe, and the feed pipe is connected to a solenoid valve.

[0019] As a preferred technical solution of the present invention, three groups of heaters are installed on the inner wall of the heat preservation cover, a temperature sensor is arranged inside the fermentation tank, a connecting sleeve is connected between the inner wall of the heat preservation cover and the outer side of the fermentation tank, and the probe of the oxygen detector passes through the connecting sleeve.

[0020] In another aspect, the present invention provides a method for using a natural organic microbial fermentation device for processing sweet sorghum, comprising the following steps: Step 1: Connect several oxygen detectors, a first gas valve, a second gas valve, a temperature sensor, a heater, a first motor, a second motor, a third motor, a solenoid valve and a main controller of the device through a converter; Step 2: Connect the pipeline in the first device to the purification device, connect the purification device to the aeration device, connect the branch pipe in the first device to the pipeline in the second device, and so on, until all the devices are connected together; Step 3: Open all the solenoid valves through the main controller, transport the crushed sweet sorghum and culture medium to all the fermentation tanks through the feed pipe, and then close all the solenoid valves; Step 4: Start the aerator, heater, first motor, second motor and third motor. The oxygen delivered by the aerator will enter the fermenter of the first device through the pipeline of the first device after being purified by the purification device. When the oxygen detector of the first device detects that the oxygen in the culture medium meets the standard, the main controller will automatically close the first valve of the first device and open the second valve of the first device, so that the oxygen enters the fermenter of the second device through the pipeline of the second device, and so on, until the oxygen content of the culture medium in all the fermenters meets the standard. If the oxygen content of the culture medium in one of the fermenters does not meet the standard, the main controller will close the device. The first air valve of all devices in front of the device is opened, the second air valve of all devices in front of the device is opened, and the first air valve of the device is opened and the second air valve of the device is closed, so that oxygen only enters the fermentation tank of the device; the heater will increase the temperature in the fermentation tank until the temperature sensor detects that the temperature meets the standard, and then the main controller will turn off the heater. If the temperature of one of the fermentation tanks does not meet the standard, the main controller will turn on the heater outside the fermentation tank alone; the first motor drives the turntable to drive the first auger and the second auger to rotate, and the second motor and the third motor drive the first auger and the second auger to rotate independently, thereby completing the horizontal and vertical mixing of the culture medium; Step 5: After the fermentation is completed, open the plate valve at the bottom of the fermentation tank to allow the finished product to flow out of the fermentation tank.

[0021] Compared with the prior art, the present invention has the following beneficial effects: 1. The natural organic microbial fermentation device for sweet sorghum processing and the use method thereof achieve the unification of temperature and oxygen content by controlling the oxygen content in the culture medium at different temperatures within the same range, thereby avoiding the decrease in microbial fermentation efficiency due to oxygen content, thereby ensuring the efficient operation of microbial fermentation; 2. The natural organic microbial fermentation device for sweet sorghum processing and the use method thereof realize uniform flow of oxygen inside the fermentation tank body at different temperatures through a stirring mechanism, thereby avoiding different oxygen contents in different areas and ensuring the uniformity of microbial fermentation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a first three-dimensional structural schematic diagram of a natural organic microbial fermentation device for processing sweet sorghum disclosed in an embodiment of the present invention; Figure 2 It is a schematic diagram of the explosion structure of the natural organic microbial fermentation device for sweet sorghum processing disclosed in an embodiment of the present invention; Figure 3 It is a second three-dimensional structural schematic diagram of the natural organic microbial fermentation device for sweet sorghum processing disclosed in an embodiment of the present invention; Figure 4It is a schematic cross-sectional structure diagram of a natural organic microbial fermentation device for sweet sorghum processing disclosed in an embodiment of the present invention; Figure 5 for Figure 4 A schematic diagram of the structure of structure A in the middle; Figure 6 for Figure 4 Schematic diagram of the enlarged structure of structure B.

[0023] In the figure: 100, storage mechanism; 1001, fermentation tank; 1002, oxygen detector; 1003, feed pipe; 1004, solenoid valve; 200, insulation mechanism; 2001, insulation cover; 2002, heater; 2003, connecting sleeve; 300, stirring mechanism; 3001, first motor; 3002, rotating shaft; 3003, turntable; 3004, first auger; 3005, second auger; 3006, second motor; 3007, third motor; 3008, heat sink; 400, pumping mechanism; 4001, coil; 4002, support block; 4003, air outlet; 4004, pipeline; 4005, branch pipe; 4006, first air valve; 4007, second air valve. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1 - Figure 6 The present invention provides a technical solution: a natural organic microbial fermentation device for sweet sorghum processing, comprising a storage mechanism 100, a heat preservation mechanism 200, and an aeration mechanism 400. The storage mechanism 100 comprises a fermentation tank 1001, the heat preservation mechanism 200 comprises a heat preservation cover 2001, and the heat preservation cover 2001 is installed on the outside of the fermentation tank 1001. The storage mechanism 100 also comprises an oxygen detector 1002, and a probe of the oxygen detector 1002 passes through the heat preservation cover 2001 to the inside of the fermentation tank 1001. The aeration mechanism 400 includes a coil 4001 installed at the bottom of the fermentation tank 1001, and a plurality of air outlet holes 4003 are provided on the top surface of the coil 4001. The open end of the coil 4001 is connected to a pipe 4004, and the pipe 4004 is connected to a first air valve 4006. The outer side of the pipe 4004 is connected to a branch pipe 4005, and the branch pipe 4005 is connected to a second air valve 4007. The connection between the branch pipe 4005 and the pipe 4004 is located between the first air valve 4006 and the free end of the pipe 4004.

[0026] An embodiment of the function of the present invention further includes a stirring mechanism 300 including a first motor 3001 installed at the center of the top surface of the fermentation tank 1001, and a turntable 3003 rotatably arranged inside the fermentation tank 1001, a rotating shaft 3002 is transmission-connected between the output end of the first motor 3001 and the center of the turntable 3003, a first auger 3004 and a second auger 3005 are rotationally connected to the bottom surface of the turntable 3003, a second motor 3006 and a third motor 3007 are installed on the top surface of the turntable 3003, and the output end of the second motor 3006 is transmission-connected to the first auger 3004, and the output end of the third motor 3007 is transmission-connected to the second auger 3005.

[0027] According to an embodiment of the present invention, further, the first auger 3004 and the second auger 3005 are both inclined, and the length of the first auger 3004 is greater than the length of the second auger 3005.

[0028] As an embodiment of the present invention, further, the side surface of the turntable 3003 is in contact with the inner wall of the fermentation tank 1001.

[0029] According to an embodiment of the present invention, further, a plurality of heat dissipation grooves 3008 are provided on the top surface of the fermentation tank 1001 .

[0030] According to an embodiment of the present invention, further, a pressure relief valve is connected to the side of the fermentation tank 1001.

[0031] In one embodiment of the present invention, further, a plurality of support blocks 4002 for supporting the coil 4001 are installed on the inner bottom surface of the fermentation tank 1001, and the coil 4001 is suspended.

[0032] In one embodiment of the present invention, further, the outside of the fermentation tank 1001 is connected to a feed pipe 1003 , and the feed pipe 1003 is connected to a solenoid valve 1004 .

[0033] In one embodiment of the present invention, further, three groups of heaters 2002 are installed on the inner wall of the heat preservation cover 2001, a temperature sensor is arranged inside the fermentation tank 1001, a connecting sleeve 2003 is connected between the inner wall of the heat preservation cover 2001 and the outer side of the fermentation tank 1001, and a probe of the oxygen detector 1002 passes through the connecting sleeve 2003.

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1 - Figure 6 The present invention provides a technical solution: a natural organic microbial fermentation device for sweet sorghum processing, comprising the following steps: Step 1: connect the oxygen detector 1002, the first gas valve 4006, the second gas valve 4007, the temperature sensor, the heater 2002, the first motor 3001, the second motor 3006, the third motor 3007, the solenoid valve 1004 and the main controller of the device through a converter; Step 2: Connect the pipeline 4004 in the first device to the purification device, connect the purification device to the aeration device, connect the branch pipe 4005 in the first device to the pipeline 4004 in the second device, and so on, until all devices are connected together; Step 3: Open all the solenoid valves 1004 through the main controller, transport the crushed sweet sorghum and culture medium to all the fermentation tanks 1001 through the feed pipe 1003, and then close all the solenoid valves 1004; Step 4: Start the aerator, heater 2002, first motor 3001, second motor 3006 and third motor 3007. The oxygen delivered by the aerator will enter the fermentation tank 1001 of the first device through the pipe 4004 of the first device after being purified by the purification device. When the oxygen detector 1002 of the first device detects that the oxygen in the culture medium meets the standard, the main controller will automatically close the first valve 4006 of the first device and open the second valve 4007 of the first device, so that the oxygen enters the fermentation tank 1001 of the second device through the pipe 4004 of the second device, and so on, until the oxygen content of the culture medium in all the fermentation tanks 1001 meets the standard. If the oxygen content of the culture medium in one of the fermentation tanks 1001 does not meet the standard, the main controller will close the first valve 4006 of all the devices in front of the device. The first motor 3001 drives the turntable 3003 to drive the first auger 3004 and the second auger 3005 to rotate, and the second motor 3006 and the third motor 3007 drive the first auger 3004 and the second auger 3005 to rotate independently, thereby completing the horizontal and vertical mixing of the culture medium; Step 5: After the fermentation is completed, open the plate valve at the bottom of the fermentation tank 1001 to allow the finished product to flow out of the fermentation tank 1001.

Claims

1. A natural organic microbial fermentation device for sweet sorghum processing, characterized in that: The invention comprises a storage mechanism (100), a heat preservation mechanism (200), and an aeration mechanism (400), wherein the storage mechanism (100) comprises a fermentation tank (1001), the heat preservation mechanism (200) comprises a heat preservation cover (2001), and the heat preservation cover (2001) is installed on the outside of the fermentation tank (1001); the storage mechanism (100) further comprises an oxygen detector (1002), and a probe of the oxygen detector (1002) passes through the heat preservation cover (2001) to the inside of the fermentation tank (1001); the aeration mechanism (400) comprises a gas pump installed on the fermentation tank (1001); 001), the top surface of the coil (4001) is provided with a plurality of air outlet holes (4003), the open end of the coil (4001) is connected to a pipe (4004), the pipe (4004) is connected to a first air valve (4006), the outer side of the pipe (4004) is connected to a branch pipe (4005), the branch pipe (4005) is connected to a second air valve (4007), and the connection between the branch pipe (4005) and the pipe (4004) is located between the first air valve (4006) and the free end of the pipe (4004).

2. The natural organic microbial fermentation device for sweet sorghum processing according to claim 1, characterized in that: The invention also includes a stirring mechanism (300) comprising a first motor (3001) mounted at the center of the top surface of the fermentation tank (1001), and a turntable (3003) rotatably arranged inside the fermentation tank (1001); a rotating shaft (3002) is drivingly connected between the output end of the first motor (3001) and the center of the turntable (3003); a first auger (3004) and a second auger (3005) are rotatably connected to the bottom surface of the turntable (3003); a second motor (3006) and a third motor (3007) are mounted on the top surface of the turntable (3003); the output end of the second motor (3006) is drivingly connected to the first auger (3004), and the output end of the third motor (3007) is drivingly connected to the second auger (3005).

3. The natural organic microbial fermentation device for sweet sorghum processing according to claim 2, characterized in that: The first auger (3004) and the second auger (3005) are both arranged obliquely, and the length of the first auger (3004) is greater than the length of the second auger (3005).

4. The natural organic microbial fermentation device for sweet sorghum processing according to claim 2, characterized in that: The side surface of the turntable (3003) is in contact with the inner wall of the fermentation tank (1001).

5. The natural organic microbial fermentation device for sweet sorghum processing according to claim 2, characterized in that: A plurality of heat dissipation grooves (3008) are provided on the top surface of the fermentation tank (1001).

6. The natural organic microbial fermentation device for sweet sorghum processing according to claim 1, characterized in that: The side of the fermentation tank (1001) is connected to a pressure relief valve.

7. The natural organic microbial fermentation device for sweet sorghum processing according to claim 1, characterized in that: A plurality of support blocks (4002) for supporting the coil (4001) are installed on the inner bottom surface of the fermentation tank (1001), and the coil (4001) is suspended in the air.

8. The natural organic microbial fermentation device for sweet sorghum processing according to claim 1, characterized in that: The outside of the fermentation tank (1001) is also connected to a feed pipe (1003), and the feed pipe (1003) is connected to a solenoid valve (1004).

9. The natural organic microbial fermentation device for sweet sorghum processing according to claim 1, characterized in that: The inner wall of the heat-insulating cover (2001) is installed with three groups of heaters (2002), the interior of the fermentation tank (1001) is provided with a temperature sensor, a connecting sleeve (2003) is connected between the inner wall of the heat-insulating cover (2001) and the outer side of the fermentation tank (1001), and a probe of the oxygen detector (1002) passes through the connecting sleeve (2003).

10. A method for using a natural organic microbial fermentation device for sweet sorghum processing, as applied to the natural organic microbial fermentation device for sweet sorghum processing according to claims 1-9, characterized in that: The following steps are involved: Step 1: connecting a plurality of oxygen detectors (1002), a first gas valve (4006), a second gas valve (4007), a temperature sensor, a heater (2002), a first motor (3001), a second motor (3006), a third motor (3007), a solenoid valve (1004) and a master controller of the device through a converter; Step 2: Connect the pipeline (4004) in the first device to the purification device, connect the purification device to the aeration device, connect the branch pipe (4005) in the first device to the pipeline (4004) in the second device, and so on, until all devices are connected together; Step 3: Open all the solenoid valves (1004) through the main controller, transport the crushed sweet sorghum and culture medium to all the fermentation tanks (1001) through the feed pipe (1003), and then close all the solenoid valves (1004); Step 4: Start the aerator, the heater (2002), the first motor (3001), the second motor (3006), and the third motor (3007). The oxygen delivered by the aerator is purified by the purification device and then enters the fermentation tank (1001) of the first device through the pipe (4004) of the first device. When the oxygen detector (1002) of the first device detects that the oxygen in the culture medium meets the standard, the main controller will automatically close the first valve (4006) of the first device and open the second valve (4007) of the first device, so that the oxygen enters the fermentation tank (1001) of the second device through the pipe (4004) of the second device, and so on, until the oxygen content of the culture medium in all the fermentation tanks (1001) meets the standard. If the oxygen content of the culture medium in one of the fermentation tanks (1001) does not meet the standard, the main controller will close the first valves (4006) of all the devices in front of the device. ), opening the second air valve (4007) of all devices in front of the device, and opening the first air valve (4006) of the device, and closing the second air valve (4007) of the device, so that oxygen only enters the fermentation tank (1001) of the device; the heater (2002) will increase the temperature in the fermentation tank (1001) until the temperature sensor detects that the temperature reaches the standard, and then the main controller will turn off the heater (2002). If the temperature of one of the fermentation tanks (1001) does not reach the standard, the main controller will turn on the heater (2002) outside the fermentation tank (1001) alone; the first motor (3001) drives the turntable (3003) to drive the first auger (3004) and the second auger (3005) to rotate, and at the same time, the second motor (3006) and the third motor (3007) drive the first auger (3004) and the second auger (3005) to rotate independently, thereby completing the horizontal and vertical mixing of the culture medium; Step 5: After the fermentation is completed, open the plate valve at the bottom of the fermentation tank (1001) to allow the finished product to flow out of the fermentation tank (1001).

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