An integrated automatic soybean paste production equipment and its production method

Abstract

This invention provides an integrated automated soybean paste production equipment and method, relating to the field of fermentation product brewing technology. The integrated automated soybean paste production equipment includes a fermentation and insulation tank; a soybean weighing tank for weighing soybeans and spraying them into the fermentation and insulation tank; a flour weighing tank for weighing flour and spraying it into the fermentation and insulation tank; a fermentation inoculation tank for spraying inoculum into the fermentation and insulation tank; a compound mold inoculation tank for spraying inoculum into the fermentation and insulation tank; and a stirrer for stirring the materials in the fermentation and insulation tank. This invention achieves integrated soybean paste production through these individual tanks, not only improving the consistency of fermentation and maturation of the soybean paste but also significantly shortening the fermentation and maturation time of soybeans, effectively increasing labor productivity and reducing operating labor costs.

Description

Technical Field

[0001] This invention relates to the field of fermentation technology, and more specifically, to an integrated automatic production equipment and method for soybean paste. Background Technology

[0002] Currently, large-scale soybean paste enterprises still employ natural inoculation techniques and semi-mechanized production methods. Their soybean paste production process involves first screening the soybeans, then rinsing them multiple times with water before soaking them in soaking tanks. After soaking, the soybeans are steamed in a cooking pot. Flour is then heat-treated by spraying it with 70℃ hot water. Koji (fermentation starter) is made by adding the heat-treated flour to the pre-treated soybeans and mixing them thoroughly. Koji is then added to the soybean and flour mixture and sent to a koji room for cultivation. The resulting koji is mixed with brine and then transferred to fermentation tanks for fermentation.

[0003] The soybean washing, soaking, steaming, koji making, and fermentation processes in this production process are all independent sections, involving a large amount of manual operation. The koji is cultivated in an open environment, resulting in the enrichment of various microorganisms and a complex enzyme system that affects the uniformity of the soy sauce flavor. Since it is impossible to precisely control the fermentation and maturation using conventional methods, the fermentation and maturation processes require a considerable amount of time. Summary of the Invention

[0004] To at least partially address the aforementioned problems, in a first aspect, the present invention provides an integrated automatic soybean paste production equipment, comprising:

[0005] Fermentation insulated tank;

[0006] Soybean weighing tank, used for weighing soybeans and spraying soybeans into fermentation and insulation tanks;

[0007] A flour weighing jar is used to weigh flour and spray it into a fermentation and insulation tank.

[0008] Fermentation inoculation tank is used to spray the inoculum into the fermentation heat preservation tank;

[0009] A compound mold inoculation tank is used to spray microbial inoculum into a fermentation and heat preservation tank;

[0010] A stirrer is used to stir the materials in a fermentation and heat preservation tank.

[0011] Optionally, the fermentation inoculation tank includes a first strain discharge pipe, and the compound mold inoculation tank includes a second strain discharge pipe. The first strain discharge pipe and the second strain discharge pipe are connected to form a combined pipe, and the combined pipe is connected to the top of the inner cavity of the fermentation heat preservation tank.

[0012] Optionally, a fermentation bacteria inoculation diaphragm valve is connected to the first strain discharge pipe, a compound mold inoculation diaphragm valve is connected to the second strain discharge pipe, and three branch pipes are connected to the combined pipe, with a brine feed valve, a hot water feed valve and a bean soaking water recycling treatment water feed valve respectively connected to the three branch pipes.

[0013] Optionally, the fermentation insulated tank further includes a discharge valve, a sterile air top discharge pipe valve, and a soybean paste discharge screw pump. The discharge pipe at the bottom of the fermentation insulated tank is connected to the discharge valve and then to the inlet of the soybean paste discharge screw pump.

[0014] Optionally, the integrated automatic soybean paste production equipment further includes a variable frequency fan, several circulating air ducts, a waste gas recycling duct, a dehydration screen plate, and an online mixer. The bottom of the fermentation heat preservation tank is provided with a dehydration screen plate. The air inlet of the variable frequency fan is connected to one end of the waste gas recycling duct. The air outlet of the variable frequency fan is connected to the inlet of the online mixer through a pipeline. The outlet of the online mixer is connected to the inner cavity of the fermentation heat preservation tank located below the dehydration screen plate through several circulating air ducts. A circulating air return valve is provided on the circulating air duct.

[0015] Optionally, the integrated automatic soybean paste production equipment further includes an exhaust gas pipe connected to the top cavity of the fermentation and heat preservation tank. The exhaust gas reuse pipe is connected to the exhaust gas pipe to form a circulation loop. The circulation loop is equipped with a circulation air valve and an exhaust gas treatment regulating valve.

[0016] Optionally, a plurality of the circulating air return valves are evenly distributed in a ring around the bottom periphery of the fermentation insulated tank.

[0017] Optionally, the integrated automatic soybean paste production equipment further includes several soybean flour feeding valves connected to the top of the fermentation and insulation tank. The blowing pipes of the soybean weighing tank outlet end and the flour weighing tank outlet end are interconnected and respectively connected to several soybean flour feeding valves, so that the soybeans and flour are mixed and then enter the fermentation and insulation tank through several soybean flour feeding valves.

[0018] Optionally, the integrated automatic soybean paste production equipment further includes a liquid discharge centrifugal pump, a first pipeline, a second pipeline, a third pipeline, and a fourth pipeline. One end of the fourth pipeline is connected to the inner bottom cavity of the fermentation and insulation tank, and the other end of the fourth pipeline is connected to the liquid inlet of the liquid discharge centrifugal pump. The liquid outlet of the liquid discharge centrifugal pump is connected to one end of the first pipeline. The second pipeline is connected to the inner cavity of the fermentation and insulation tank, and the third pipeline is connected to the second pipeline.

[0019] Secondly, the present invention also provides a production method for an integrated automatic soybean paste production equipment, comprising the following steps:

[0020] Step 1: Soybean Feeding

[0021] Soybeans are weighed using a soybean weighing tank, and the weighed soybeans are then sprayed into the fermentation and heat preservation tank.

[0022] Step 2: Wash the beans

[0023] Pour washing water into the fermentation and heat preservation tank, start the agitator, turn and wash the soybeans, and then drain the washing wastewater.

[0024] Step 3: Soaking soybeans

[0025] Pour warm water into the fermentation tank to soak the soybeans, and then drain the soaking wastewater.

[0026] Step 4: Steaming soybeans

[0027] Steam is introduced into the fermentation tank to cook the soybeans.

[0028] Step 5: Flour Feeding

[0029] The flour is weighed using a flour weighing jar, and the weighed flour is then sprayed into the fermentation and insulation tank.

[0030] Step Six: Sterilize the flour

[0031] Steam is introduced into the fermentation and insulation tank to sterilize the flour at high temperature;

[0032] Step 7: Cooling the material

[0033] Circulate ventilation inside the fermentation tank and start the agitator to turn the soil.

[0034] Step 8: Inoculation of the starter culture

[0035] The inoculum is sprayed into the fermentation and heat preservation tank using a composite mold inoculation tank;

[0036] Step Nine: Composing the Music

[0037] The temperature, humidity, and oxygen content in the fermentation tank are controlled, and the mash is stirred by a stirrer;

[0038] Step 10: Fermentation

[0039] The inoculum from the fermentation inoculation tank is sprayed into the fermentation heat preservation tank, and the mash is stirred by a stirrer.

[0040] Step 11: Discharge

[0041] Drain the soybean paste from the fermentation insulated container;

[0042] Step 12: Tank Cleaning

[0043] Pour cleaning water into the fermentation tank and start the agitator to clean the inside of the fermentation tank.

[0044] Compared with the prior art, the present invention has the following beneficial effects:

[0045] Soybeans are injected into the fermentation insulated tank via a soybean weighing tank, completing the soybean feeding process. Within the fermentation insulated tank, soybeans undergo washing, soaking, and steaming. Flour is injected into the fermentation insulated tank via a flour weighing tank, where it is sterilized and cooled. The sterilized flour promotes microbial growth during soybean fermentation. The fermentation inoculation tank and the compound mold inoculation tank provide excellent hygienic conditions for the temporary storage of microorganisms, preventing contamination from other microorganisms in an open environment. Two different fermentation starter solutions can be sprayed into the fermentation insulated tank for inoculation, thus completing the subsequent koji-making and fermentation processes. Regular stirring by a stirrer completes the mash fermentation process. The integrated production of soybean paste using these independent tanks not only improves the consistency of fermentation and maturation but also significantly shortens the soybean fermentation and maturation time, effectively increasing labor productivity and reducing operational labor costs. Attached Figure Description

[0046] Figure 1 This is a front view of the integrated automatic soybean paste production equipment according to an embodiment of the present invention;

[0047] Figure 2 This is a top view of the integrated automatic soybean paste production equipment according to an embodiment of the present invention;

[0048] Figure 3 This is a schematic diagram of the soybean weighing tank in the integrated automatic soybean paste production equipment of this embodiment of the invention;

[0049] Figure 4 This is a schematic diagram of the flour weighing tank in the integrated automatic soybean paste production equipment of this invention.

[0050] Figure 5 This is a schematic diagram of the fermentation inoculation tank in the integrated automatic soybean paste production equipment of this embodiment of the invention;

[0051] Figure 6 This is a schematic diagram of the compound mold inoculation tank in the integrated automatic soybean paste production equipment of this invention.

[0052] Figure 7 This is a schematic diagram of the first soybean flour feed valve in the integrated automatic soybean paste production equipment of this embodiment of the invention.

[0053] Explanation of reference numerals in the attached figures:

[0054] 100. Soybean weighing tank; 101. Soybean warehouse auger; 102. Soybean feed hopper; 103. Soybean hopper level switch; 104. Soybean weighing tank vent valve; 105. Soybean weighing tank compressed air blowing valve; 106. Soybean weighing tank feed valve; 107. Soybean weighing tank pressure transmitter; 108. Soybean weighing tank anti-blocking agitator; 109. Soybean weighing tank discharge valve; 110. Soybean weighing tank weighing sensor; 200. Flour weighing tank; 201. Flour warehouse auger; 202. Flour feed hopper; 203. Flour hopper level switch; 204. Flour weighing tank vent valve; 205. Flour weighing tank compressed air blowing valve; 206. Flour weighing tank feed valve; 207. Flour weighing tank pressure transmitter 208. Flour Weighing Tank Anti-blocking Agitator; 209. Flour Weighing Tank Discharge Valve; 210. Flour Weighing Tank Weighing Sensor; 300. Fermentation Inoculation Tank; 301. Fermentation Inoculation Tank Feed Flow Meter; 302. Fermentation Inoculation Tank Diaphragm Valve; 303. Fermentation Inoculation Tank Vent Regulating Diaphragm Valve; 304. Fermentation Inoculation Tank Pressure Transmitter; 305. Fermentation Inoculation Tank Compressed Air Diaphragm Valve; 306. Fermentation Inoculation Tank Temperature Sensor; 307. Fermentation Inoculation Tank Steam Switch Valve; 400. Compound Mold Inoculation Tank; 401. Compound Mold Feed Flow Meter; 402. Compound Mold Inoculation Tank Diaphragm Valve; 403. Compound Mold Inoculation Tank Vent Regulating Diaphragm Valve; 404. Compound Mold Inoculation Tank Pressure Transmitter; 405. Compound Mold 406. Inoculation tank compressed air diaphragm valve; 407. Compound mold inoculation tank temperature sensor; 500. Compound mold inoculation tank steam switch valve; 501. Fermentation heat preservation tank; 502. Brine feed valve; 503. Hot water inlet valve; 504. Compound mold inoculation diaphragm valve; 505. Fermentation bacteria inoculation diaphragm valve; 506. Soaking soybean recovery water inlet valve; 507. Feed water flow meter; 508. Cooking exhaust gas regulating valve; 509. Fermentation exhaust gas treatment regulating valve; 511. Circulating air valve; 512. Oxygen concentration detector; 513. Temperature and humidity sensor; 514. Pressure transmitter; 515. Feed water main shut-off valve; 516. First soybean flour feed valve; 517. Second soybean flour feed valve; 518. Third soybean flour feed valve; 520. 521. Fourth soybean flour feed valve; 522. Sight mirror light; 523. High-definition camera; 524. Sterile compressed air regulating valve for return air duct; 525. Sterile air ball valve for return air duct; 526. Return air duct shut-off valve; 527. Return air duct steam regulating valve; 528. Return air duct steam shut-off ball valve; 529. Variable frequency fan; 530. Bottom steam jacket; 531. Bottom steam regulating valve; 532. Bottom steam shut-off ball valve; 533. First circulating air return valve; 534. Second circulating air return valve; 535. Third circulating air return valve; 536. Fourth circulating air return valve; 537. Fifth circulating air return valve; 538. Sixth circulating air return valve; 539. Seventh circulating air return valve; 541. Eighth circulating air return valve; 542. Tank washing water reuse valve;543. Tank washing water reuse flow meter; 544. Dewatering screen plate; 545. Discharge valve; 546. Residual water recovery valve; 547. Aseptic air top discharge pipeline valve; 548. Soaking water circulation valve; 549. Tank washing water recovery valve; 550. Soaking wastewater treatment valve; 551. Soybean paste discharge screw pump; 552. Liquid discharge centrifugal pump; 553. Manhole; 557. Exhaust gas pipeline; 558. Exhaust gas reuse pipeline; 559. Online mixer; 560. First ball washing; 561. Second ball washing; 562. Third ball washing; 563. Fourth ball washing; 564. Return water flow switch; 565. Temperature sensor; 566. Discharge flow switch; 569. Circulating cooling water valve; 570. First pipeline; 571. Second pipeline; 572. Third pipeline; 573. Fourth pipeline; 600. Agitator. Detailed Implementation

[0055] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0056] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0057] In the description of this specification, the references to terms such as "embodiment," "one embodiment," "some implementations," "exemplary," and "one implementation," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0058] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0059] like Figure 1 As shown, an embodiment of the present invention provides an integrated automatic soybean paste production equipment, comprising:

[0060] 500 fermentation insulated tank;

[0061] Soybean weighing tank 100 is used to weigh soybeans and spray soybeans into fermentation and heat preservation tank 500.

[0062] Flour weighing tank 200 is used to weigh flour and spray flour into fermentation and insulation tank 500.

[0063] Fermentation inoculation tank 300 is used to spray the inoculum into fermentation heat preservation tank 500;

[0064] The compound mold inoculation tank 400 is used to spray the inoculum into the fermentation and heat preservation tank 500;

[0065] Agitator 600 is used to stir the materials in fermentation and heat preservation tank 500.

[0066] It should be noted that the agitator 600 can be composed of a motor and a mixing frame. The motor can be fixedly installed in the middle of the top surface of the fermentation and heat preservation tank 500. The output shaft of the motor is connected to the mixing frame set inside the fermentation and heat preservation tank 500. The motor drives the mixing frame to rotate, thereby turning over the material in the fermentation and heat preservation tank 500.

[0067] In this embodiment, the soybean weighing tank 100 can spray soybeans into the fermentation and insulation tank 500 to realize the soybean feeding process. Soybeans can also undergo washing, soaking and steaming processes in the fermentation and insulation tank 500. Flour is sprayed into the fermentation and insulation tank 500 through the flour weighing tank 200, and the fermentation and insulation tank 500 is used for flour sterilization and material cooling. The sterilized flour can promote the growth of microorganisms during soybean fermentation. The fermentation inoculation tank 300 and the compound mold inoculation tank 400 provide good sanitary conditions for the temporary storage of microorganisms, avoiding the influence of contamination by miscellaneous bacteria in open environment cultivation. Two different fermentation liquids can be sprayed into the fermentation and insulation tank 500 for inoculation, thereby completing the subsequent koji making and fermentation process. The stirrer 600 is used for regular stirring, and finally the mash fermentation process is completed. The integrated production of soybean paste is completed through the above-mentioned independent tanks, which not only improves the consistency of soybean paste fermentation and maturity, but also greatly shortens the fermentation and maturity time of soybeans, effectively improving labor productivity and reducing operating labor costs.

[0068] like Figure 1 , Figure 2 and Figure 3As shown, optionally, the soybean weighing tank 100 includes a soybean warehouse auger 101, a soybean feed hopper 102, a soybean hopper level switch 103, a soybean weighing tank vent valve 104, a soybean weighing tank compressed air blowing valve 105, a soybean weighing tank feed valve 106, a soybean weighing tank pressure transmitter 107, a soybean weighing tank anti-blocking agitator 108, a soybean weighing tank discharge valve 109, and a soybean weighing tank weighing sensor 110. The soybean weighing tank weighing sensor 110 is installed on the support feet of the soybean weighing tank 100, the soybean weighing tank anti-blocking agitator 108 is installed on the conical part of the bottom of the soybean weighing tank 100, and a large... The soybean weighing tank has a discharge valve 109. A soybean weighing tank pressure transmitter 107 is installed on the conical part of the top of the soybean weighing tank 100. The soybean weighing tank compressed air blowing valve 105 and the soybean weighing tank venting valve 104 are respectively connected to the inner cavity of the top of the soybean weighing tank 100 through pipelines. One end of the soybean weighing tank feed valve 106 is connected to the inner cavity of the middle part of the top of the soybean weighing tank 100 through a pipeline. The other end of the soybean weighing tank feed valve 106 is connected to the discharge port of the soybean feed hopper 102. A soybean hopper level switch 103 is installed on the upper half of the hopper wall of the soybean feed hopper 102. The discharge end of the soybean warehouse auger 101 is connected to the inlet of the soybean feed hopper 102.

[0069] In this embodiment, by activating the soybean warehouse auger 101, soybean raw materials are conveyed from the grain warehouse into the soybean feed hopper 102. The soybean weighing tank feed valve 106 is opened to feed soybean weighing tank 100. When the soybean weighing tank weighing sensor 110 detects that the preset full capacity of soybean weighing tank 100 has been reached, the soybean weighing tank feed valve 106 is closed, and the soybean weighing tank compressed air blowing valve 105 is opened. When the soybean weighing tank pressure transmitter 107 detects that the pressure has reached the set value, the soybean weighing tank anti-blocking agitator 108 and... The first soybean flour inlet valve 517, the second soybean flour inlet valve 518, the third soybean flour inlet valve 519, and the fourth soybean flour inlet valve 520 on the upper part of the fermentation and insulation tank 500 are opened, and then the soybean weighing tank outlet valve 109 is opened to allow soybeans to be sprayed into the fermentation and insulation tank 500. The soybean hopper level switch 103 detects the level and stops the soybean warehouse feeding auger 101 when the preset level value is reached. When the soybean weighing tank pressure transmitter 107 detects that the pressure has reached a low level, it indicates that the soybean spraying in the soybean weighing tank 100 is complete.

[0070] like Figure 1 , Figure 2 and Figure 4As shown, optionally, the flour weighing tank 200 includes a flour warehouse auger 201, a flour feed hopper 202, a flour hopper level switch 203, a flour weighing tank vent valve 204, a flour weighing tank compressed air blowing valve 205, a flour weighing tank feed valve 206, a flour weighing tank pressure transmitter 207, a flour weighing tank anti-blocking agitator 208, a flour weighing tank discharge valve 209, and a flour weighing tank weighing sensor 210. The flour weighing tank weighing sensor 210 is installed on the support feet of the flour weighing tank 200. The flour weighing tank anti-blocking agitator 208 is installed on the conical part of the bottom of the flour weighing tank 200. The flour weighing tank discharge valve 209 is installed at the bottom of the flour weighing tank 200. After being connected to the soybean weighing tank discharge valve 109 via a pipeline, 09 is connected to the fermentation insulation tank 500. The flour weighing tank 200 is equipped with a flour weighing tank pressure transmitter 207 on the conical part of the tank top. The flour weighing tank vent valve 204 and the flour weighing tank compressed air blowing valve 205 are respectively connected to the inner cavity of the top of the flour weighing tank 200 via pipelines. The flour weighing tank feed valve 206 is connected to the inner cavity of the middle part of the top of the soybean weighing tank 100 via a pipeline. The other end of the flour weighing tank feed valve 206 is connected to the discharge port of the flour feed hopper 202. The flour feed hopper level switch 203 is installed on the upper half of the hopper wall of the flour feed hopper 202. The discharge end of the flour warehouse auger 201 is connected to the feed port of the flour feed hopper 202.

[0071] In this embodiment, the flour warehouse auger 201 is activated to transport flour raw materials from the grain warehouse into the flour feed hopper 202. The flour weighing tank feed valve 206 is opened to feed soybeans into the soybean weighing tank 100. When the flour weighing tank weighing sensor 210 detects that the preset full capacity of the flour weighing tank 200 has been reached, the flour weighing tank feed valve 206 is closed, and the flour weighing tank compressed air blowing valve 205 is opened. When the flour weighing tank pressure transmitter 207 detects that the pressure has reached the set value, the flour weighing tank anti-blockage agitator 208 and the generator are activated. The first soybean flour inlet valve 517, the second soybean flour inlet valve 518, the third soybean flour inlet valve 519, and the fourth soybean flour inlet valve 520 on the upper part of the fermentation and insulation tank 500 are opened, and then the flour weighing tank outlet valve 209 is opened to allow flour to be sprayed into the fermentation and insulation tank 500. The flour hopper level switch 203 detects the level and stops the flour warehouse auger 201 when the preset level value is reached. When the flour weighing tank pressure transmitter 207 detects that the pressure has reached the low level, it means that the flour spraying in the flour weighing tank 200 is complete.

[0072] like Figure 1 , Figure 2 and Figure 5As shown, optionally, the fermentation inoculation tank 300 includes a first inoculum discharge pipeline, a fermentation inoculum feed flow meter 301, a fermentation inoculation tank diaphragm valve 302, a fermentation inoculation tank venting regulating diaphragm valve 303, a fermentation inoculation tank pressure transmitter 304, a fermentation inoculation tank compressed air diaphragm valve 305, a fermentation inoculation tank temperature sensor 306, and a fermentation inoculation tank steam switch valve 307. The fermentation inoculation tank pressure transmitter 304 is installed on the top of the fermentation inoculation tank 300. 04. The fermentation bacteria feed flow meter 301 and the fermentation bacteria inlet diaphragm valve 302 are connected to the fermentation bacteria inoculation tank 300 through pipelines. The fermentation bacteria inoculation tank vent regulating diaphragm valve 303, the fermentation bacteria inoculation tank compressed air diaphragm valve 305 and the fermentation bacteria inoculation tank steam switch valve 307 are respectively connected to the fermentation bacteria inoculation tank 300 through pipelines. The fermentation bacteria inoculation tank temperature sensor 306 is installed on the fermentation bacteria inoculation tank 300 to detect the internal temperature of the fermentation bacteria inoculation tank 300.

[0073] In this embodiment, after the fermentation inoculation tank 300 is steam sterilized before use, when the temperature sensor 306 detects that the tank temperature has dropped below the preset temperature, the fermentation inoculation tank diaphragm valve 302 is opened and the venting regulating diaphragm valve 303 is fully opened, so that the mixed fermentation starter liquid made of lactic acid fermentation liquid and yeast fermentation liquid is transported into the fermentation inoculation tank 300. When the fermentation feed flow meter 301 measures the inoculation amount, the fermentation inoculation tank diaphragm valve 302 and the venting regulating diaphragm valve 303 are closed, and the fermentation inoculation tank compressed air diaphragm valve 305, fermentation inoculation diaphragm valve 504 and feed water main shut-off valve 516 are opened. The mixed fermentation starter liquid is forced out of the fermentation inoculation tank 300 by sterile compressed air and sprayed onto the fermentation mash through multiple washing balls.

[0074] like Figure 1 , Figure 2 and Figure 6As shown, optionally, the composite mold inoculation tank 400 includes a second strain discharge pipeline, a composite mold feed flow meter 401, a composite mold inlet diaphragm valve 402, a composite mold inoculation tank venting regulating diaphragm valve 403, a composite mold inoculation tank pressure transmitter 404, a composite mold inoculation tank compressed air diaphragm valve 405, a composite mold inoculation tank temperature sensor 406, and a composite mold inoculation tank steam switch valve 407. The composite mold inoculation tank pressure transmitter 404 is installed on the top of the composite mold inoculation tank 400. 04. The compound mold feed flow meter 401 and the compound mold inlet diaphragm valve 402 are connected to the compound mold inoculation tank 400 through pipelines. The compound mold inoculation tank vent regulating diaphragm valve 403, the compound mold inoculation tank compressed air diaphragm valve 405 and the compound mold inoculation tank steam switch valve 407 are respectively connected to the compound mold inoculation tank 400 through pipelines. The compound mold inoculation tank temperature sensor 406 is installed on the compound mold inoculation tank 400 to detect the internal temperature of the compound mold inoculation tank 400.

[0075] In this embodiment, after the composite mold inoculation tank 400 is steam sterilized before use, when the temperature sensor 406 detects that the temperature inside the composite mold inoculation tank 400 is lower than the preset value, the opening of the venting regulating diaphragm valve 403 of the composite mold inoculation tank is fully opened, and the composite mold inlet diaphragm valve 402 is opened. The composite mold liquid prepared by Aspergillus oryzae and Aspergillus niger inoculation in a preset ratio is transported into the composite mold inoculation tank 400. When the measurement of the composite mold feed flow meter 401 reaches the inoculation amount, the composite mold inlet diaphragm valve 402 and the venting regulating diaphragm valve 403 of the composite mold inoculation tank are closed, and the compressed air diaphragm valve 405, the composite mold inoculation diaphragm valve 503, and the feed water main shut-off valve 516 of the composite mold inoculation tank are opened. The composite mold liquid is forced out of the composite mold inoculation tank 400 by sterile compressed air and sprayed onto the surface of the material after cooking and cooling through multiple washing balls.

[0076] like Figure 1 and Figure 2As shown, optionally, the integrated automatic soybean paste production equipment includes a brine inlet valve 501, a hot water inlet valve 502, a compound mold inoculation diaphragm valve 503, a fermentation bacteria inoculation diaphragm valve 504, a soaking bean recycling water inlet valve 505, a feed water flow meter 506, a feed water main shut-off valve 516, a confluence pipe, and washing balls. Multiple washing balls are installed above the inner cavity of the fermentation insulation tank 500. Each washing ball is connected to one end of a confluence pipe located inside the fermentation insulation tank 500 via a pipeline. The other end of the confluence pipe extends out of the fermentation insulation tank 500 and is sequentially connected to the feed water main shut-off valve 516 and the feed water... The flow meter 506 and the compound mold inoculation diaphragm valve 503 are connected to the outlet of the compound mold inoculation tank 400. The first strain discharge pipe is connected to the fermentation strain inoculation diaphragm valve 504, and the second strain discharge pipe is connected to the compound mold inoculation diaphragm valve 503. The first strain discharge pipe and the second strain discharge pipe are connected to form a combined pipe. The combined pipe is connected to the top of the inner cavity of the fermentation heat preservation tank 500. Three branch pipes are connected to the combined pipe. The three branch pipes are respectively connected to the brine inlet valve 501, the hot water inlet valve 502, and the bean soaking water recycling inlet valve 505.

[0077] like Figure 1 and Figure 2As shown, optionally, the integrated automatic soybean paste production equipment includes a cooking exhaust gas regulating valve 507, a fermentation exhaust gas treatment regulating valve 508, a circulating air valve 509, an oxygen concentration detector 511, a temperature and humidity sensor 512, a pressure transmitter 513, a feed water main shut-off valve 516, a return air duct sterile compressed air regulating valve 525, a return air duct sterile air ball valve 526, a return air duct shut-off valve 527, a return air duct steam regulating valve 528, a return air duct steam shut-off ball valve 529, a variable frequency fan 530, and so on. The system includes a first-circulation air return valve 534, a second-circulation air return valve 535, a third-circulation air return valve 536, a fourth-circulation air return valve 537, a fifth-circulation air return valve 538, a sixth-circulation air return valve 539, a seventh-circulation air return valve 540, an eighth-circulation air return valve 541, an exhaust gas pipeline 557, an exhaust gas reuse pipeline 558, an online mixer 559, a circulating cooling water valve 569, and a cooling coil. One end of the exhaust gas pipeline 557 is connected to the top cavity of the fermentation insulation tank 500. The exhaust gas reuse pipeline 558 is connected to the exhaust gas... Gas pipe 557 connects to form a circulation loop, which is equipped with a circulation air valve 509, a fermentation waste gas treatment regulating valve 508, a pressure transmitter 513, a temperature and humidity sensor 512, an oxygen concentration detector 511, and a cooking waste gas regulating valve 507. A dehydration screen plate 544 is connected to the bottom of the fermentation insulation tank 500. A temperature sensor 565 is installed inside the fermentation insulation tank 500 below the dehydration screen plate 544. When the circulation air valve 509 is opened and the fermentation waste gas treatment regulating valve 508 is closed... At point 8, the fermentation waste gas in the fermentation heat preservation tank 500 can enter the variable frequency fan 530 through the circulation loop formed by the waste gas pipe 557 and the waste gas reuse pipe 558, and then be reused in the inner bottom cavity of the fermentation heat preservation tank 500 through the online mixer 559; when the circulation air valve 509 is closed and the fermentation waste gas treatment regulating valve 508 is opened, the waste gas is directly discharged from the other end of the waste gas reuse pipe 558 and can be recycled by other production equipment or treated in other ways.

[0078] The outlet of the variable frequency fan 530 is connected to the inlet of the online mixer 559 via a pipeline. The outlet of the online mixer 559 is connected to the inner cavity of the fermentation heat preservation tank 500 located below the dehydration sieve plate 544 via several circulating air ducts. Each circulating air duct is equipped with a circulating air return valve. Specifically, the outlet of the online mixer 559 can be connected to the inner cavity of the fermentation heat preservation tank 500 located below the dehydration sieve plate 544 via eight pipelines. Each of these eight pipelines is equipped with a first circulating air return valve 534, a second circulating air return valve 535, a third circulating air return valve 536, a fourth circulating air return valve 537, a fifth circulating air return valve 538, a sixth circulating air return valve 539, a seventh circulating air return valve 540, and an eighth circulating air return valve 541. A sterile compressed air regulating valve 525 and a sterile compressed air regulating valve 525 are also installed on the return air duct. The sterile air ball valve 526, the return air duct steam regulating valve 528, and the return air duct steam shut-off ball valve 529 are respectively connected to the online mixer 559 through pipelines. The online mixer 559 is equipped with a cooling coil at the rear, and a circulating cooling water valve 569 is installed on the pipeline of the cooling coil. The air inlet of the variable frequency fan 530 is connected to the waste gas recycling pipeline 558, and the air outlet of the variable frequency fan 530 is connected to the inlet of the online mixer 559 through a pipeline. A return air duct shut-off valve 527 is installed on this pipeline. The other two inlets of the online mixer 559 are also connected to two return air ducts respectively. One return air duct is equipped with a return air duct sterile compressed air regulating valve 525 and a return air duct sterile air ball valve 526, and the other return air duct is equipped with a return air duct steam regulating valve 528 and a return air duct steam shut-off ball valve 529.

[0079] In this embodiment, the waste gas in the waste gas reuse pipe 558 is introduced into the online mixer 559 by the variable frequency fan 530. After mixing with the sterile compressed air introduced into the online mixer 559, the waste gas is cooled by the cooling coil at the rear of the online mixer 559 and then introduced into the fermentation insulation tank 500 to achieve cooling treatment inside the fermentation insulation tank 500. The waste gas in the waste gas reuse pipe 558 is introduced into the online mixer 559 by the variable frequency fan 530. After mixing with the steam introduced into the online mixer 559, the waste gas is introduced into the fermentation insulation tank 500 to achieve heating treatment inside the fermentation insulation tank 500. The waste gas in the inner cavity of the fermentation insulation tank 500 is led out through the waste gas pipe 557 and then introduced into the waste gas reuse pipe 558 for reuse, thus achieving the purpose of energy saving and emission reduction.

[0080] like Figure 1 and Figure 2As shown, several circulating air return valves are evenly distributed in a ring around the bottom periphery of the fermentation heat preservation tank 500. In other words, the first circulating air return valve 534, the second circulating air return valve 535, the third circulating air return valve 536, the fourth circulating air return valve 537, the fifth circulating air return valve 538, the sixth circulating air return valve 539, the seventh circulating air return valve 540, and the eighth circulating air return valve 541 are evenly distributed in a ring around the bottom periphery of the fermentation heat preservation tank 500.

[0081] In this embodiment, by arranging the first circulating air return valve 534, the second circulating air return valve 535, the third circulating air return valve 536, the fourth circulating air return valve 537, the fifth circulating air return valve 538, the sixth circulating air return valve 539, the seventh circulating air return valve 540, and the eighth circulating air return valve 541 in a ring around the bottom periphery of the fermentation heat preservation tank 500, cooling gas or steam can enter from all directions inside the fermentation heat preservation tank 500, thereby increasing the rate of cooling or heating inside the fermentation heat preservation tank 500.

[0082] like Figure 1 and Figure 2 As shown, optionally, the integrated automatic soybean paste production equipment also includes several soybean flour feeding valves connected to the top of the fermentation and insulation tank 500. The blowing pipes at the discharge ends of the soybean weighing tank 100 and the flour weighing tank 200 are interconnected and then connected to the several soybean flour feeding valves respectively, so that the soybeans and flour, after being mixed, enter the fermentation and insulation tank 500 through the several soybean flour feeding valves. Specifically, the several soybean flour feeding valves may include a first soybean flour feeding valve 517, a second soybean flour feeding valve 518, a third soybean flour feeding valve 519, and a fourth soybean flour feeding valve 520. Four blowing pipes are connected to both the soybean weighing tank discharge valve 109 and the flour weighing tank discharge valve 209. The blowing pipe on the soybean weighing tank discharge valve 109 is connected to the flour weighing tank discharge valve 209. The blowing pipes on the discharge valve 209 of the heavy tank are connected in pairs and then connected to the first soybean flour feed valve 517, the second soybean flour feed valve 518, the third soybean flour feed valve 519 and the fourth soybean flour feed valve 520 respectively. The fermentation heat preservation tank 500 also includes a manhole 553, a sight glass light 521, a high-definition camera 522, a bottom steam jacket 531, a bottom steam regulating valve 532 and a bottom steam shut-off ball valve 533. The manhole 553 is installed on the upper part of the fermentation heat preservation tank 500. The sight glass light 521 and the high-definition camera 522 are installed on the manhole 553. The bottom steam jacket 531 is installed at the bottom of the fermentation heat preservation tank 500. The bottom steam regulating valve 532 and the bottom steam shut-off ball valve 533 are installed at the inlet end of the bottom steam jacket 531 through pipelines.

[0083] In this embodiment, the first soybean flour feed valve 517, the second soybean flour feed valve 518, the third soybean flour feed valve 519 and the fourth soybean flour feed valve 520 can be top-mounted discharge valves. The soybean weighing tank 100 and the flour weighing tank 200 use compressed air to spray soybeans and flour into the fermentation and heat preservation tank 500.

[0084] like Figure 1 and Figure 2As shown, optionally, the integrated automatic soybean paste production equipment also includes a tank washing water reuse valve 542, a tank washing water reuse flow meter 543, a residual water recovery valve 546, a soybean soaking water circulation valve 548, a tank washing water recovery valve 549, a soybean soaking wastewater treatment valve 550, an outlet centrifugal pump 552, a return water flow switch 564, a first pipeline 570, a second pipeline 571, a third pipeline 572, and a fourth pipeline 573. One end of the fourth pipeline 573 is connected to the inner bottom cavity of the fermentation and insulation tank 500, and the other end of the fourth pipeline 573 is connected to the inlet end of the outlet centrifugal pump 552. The residual water recovery valve 546 and the return water flow switch 564 are installed on the fourth pipeline 573, and the outlet end of the outlet centrifugal pump 552 is connected to... One end of the first pipe 570 is connected to the second pipe 571, which is equipped with a tank washing water recovery valve 549. The second pipe 571 is connected to the middle of the inner cavity of the fermentation and insulation tank 500, and is equipped with a tank washing water reuse valve 542 and a tank washing water reuse flow meter 543. One end of the third pipe 572 is connected to the second pipe 571, and the other end of the third pipe 572 is connected to the first pipe 570. It should be noted that the inlet end of the third pipe 572 is connected to a section of the second pipe 571 near the fermentation and insulation tank 500. In other words, the third pipe 572 and the second pipe 571 share a section of the second pipe 571 near the fermentation and insulation tank 500. The inlet can also be directly connected to the inner cavity of the fermentation and insulation tank 500. A soybean soaking water circulation valve 548 and a soybean soaking wastewater treatment valve 550 are installed on the third pipeline 572. Thus, during the soybean soaking step, when the temperature sensor 565 detects that the water temperature is lower than the set value, the residual water recovery valve 546, the liquid discharge centrifugal pump 552, and the soybean soaking water circulation valve 548 are opened, the tank washing recovery water valve 549 is closed, and steam is introduced into the steam jacket 531 at the bottom of the tank for heating. This allows the soybean soaking water in the bottom cavity of the fermentation and insulation tank 500 to be sequentially transported back to the middle of the inner cavity of the fermentation and insulation tank 500 through the fourth pipeline 573, the first pipeline 570, and the third pipeline 572. The soaking water heats up quickly, which accelerates the heating of the soaking water in the entire fermentation and insulation tank 500, improving heating efficiency. After the soybeans are soaked, the residual water recovery valve 546, the liquid discharge centrifugal pump 552, and the tank washing water recovery valve 549 are opened, and the soaking water circulation valve 548 is closed to discharge the soaking wastewater from the fermentation and insulation tank 500 for impurity removal and filtration. By opening the tank washing water reuse valve 542, the purified and filtered tank washing water is delivered to the fermentation and insulation tank 500 through the second pipeline 571. The tank washing water reuse flow meter 543 measures the amount of tank washing water used. After the tank washing water is delivered, the tank washing water reuse valve 542 is closed, realizing the reuse of the tank washing water.

[0085] It should be noted that when cleaning the fermentation and heat preservation tank 500, the brine feed valve 501 and the main feed water shut-off valve 516 are opened, and brine is sprayed into the fermentation and heat preservation tank 500 through the first washing ball 560, the second washing ball 561, the third washing ball 562 and the fourth washing ball 563 to clean the residual soybean paste. The sterile air top discharge pipe valve 547 is opened to discharge the residual soybean paste.

[0086] This invention also provides a production method for an integrated automatic soybean paste production equipment. The following embodiments only take soybean paste production as an example and include the following steps:

[0087] Step 1: Soybean Feeding

[0088] Step 1.1: Start the soybean warehouse auger 101 to transport soybean raw materials from the grain warehouse into the soybean feed hopper 102, and open the soybean weighing tank feed valve 106 to feed soybean weighing tank 100.

[0089] Step 1.2: When the weighing sensor 110 of the soybean weighing tank detects that the preset full capacity of the soybean weighing tank 100 has been reached, the feed valve 106 of the soybean weighing tank is closed.

[0090] Step 1.3: Open the compressed air blowing valve 105 of the soybean weighing tank. When the pressure transmitter 107 of the soybean weighing tank detects that the pressure has reached the set value, open the anti-blocking agitator 108 of the soybean weighing tank and the first soybean flour feeding valve 517, the second soybean flour feeding valve 518, the third soybean flour feeding valve 519, and the fourth soybean flour feeding valve 520 on the upper part of the fermentation and heat preservation tank 500. Then open the discharge valve 109 of the soybean weighing tank to allow soybeans to be sprayed into the fermentation and heat preservation tank 500.

[0091] Step 1.4: The soybean hopper level switch 103 detects the level and stops the soybean warehouse feeding auger 101 when the preset level value is reached. When the soybean weighing tank pressure transmitter 107 detects that the pressure has reached a low level, it means that the soybeans in the soybean weighing tank 100 have been sprayed out. Repeat steps 1.1 to 1.3 to perform multiple soybean sprayings, and spray out the remaining soybeans in the soybean weighing tank 100 in the last time.

[0092] Step 2: Wash the beans

[0093] Step 2.1: Open the main shut-off valve 516 for feed water and the inlet valve 505 for soaking bean recycling water. The feed water flow meter 506 detects the water inflow. If the soaking bean recycling water has been used up, the processing room will replenish the water to the required amount. After the cleaning water volume is reached, close the main shut-off valve 516 for feed water and the inlet valve 505 for soaking bean recycling water.

[0094] Step 2.2: Start the mixer 600 and quickly till the soybeans according to the preset mixing time;

[0095] Step 2.3: Stop the agitator 600, open the residual water recovery valve 546, the bean soaking wastewater treatment valve 550 and the liquid discharge centrifugal pump 552, and discharge the bean washing water into the fermentation heat preservation tank 500 for impurity removal and filtration.

[0096] Step 2.4: When the return water flow switch 564 detects that the flow rate is zero, close the residual water recovery valve 546, the bean soaking wastewater treatment valve 550 and the liquid discharge centrifugal pump 552.

[0097] Step 2.5: Repeat steps 2.1 to 2.4 several times to finish washing the soybeans;

[0098] Step 3: Soaking soybeans

[0099] Step 3.1: After washing the soybeans, soak them in warm water at a preset temperature (e.g., around 30°C) for a preset soaking time (e.g., 5-8 hours). Open the hot water inlet valve 502 and the feed water main shut-off valve 516. When the feed water flow meter 506 detects that the water flow has reached the required level, close the hot water inlet valve 502 and the feed water main shut-off valve 516.

[0100] Step 3.2: Temperature sensor 565 detects water temperature. When the temperature is lower than the set value, the residual water recovery valve 546 and the bean soaking water circulation valve 548 are opened, the liquid outlet centrifugal pump 552 is started to circulate the bean soaking water, and the bottom steam shut-off ball valve 533 is opened. The bottom steam regulating valve 532 can be adjusted by PID to control the steam intake of the bottom steam jacket 531 and control the bean soaking water temperature to the preset temperature value (around 30℃).

[0101] Step 3.3: After the preset soaking time (5-8 hours) is reached, the soaking water is recovered. The residual water recovery valve 546 and the bean soaking wastewater treatment valve 550 are opened. The liquid discharge centrifugal pump 552 is started to discharge the bean soaking wastewater from the fermentation heat preservation tank 500 for impurity removal and filtration. When the return water flow switch 564 detects that the flow rate is zero, the residual water recovery valve 546, the bean soaking wastewater treatment valve 550 and the liquid discharge centrifugal pump 552 are closed.

[0102] Step 4: Steaming soybeans

[0103] Step 4.1: Temperature and humidity sensor 512 detects the temperature of the exhaust gas from the soybean steaming process, opens the steam shut-off ball valve 529 in the return air duct, and fully opens the steam regulating valve 528 in the return air duct.

[0104] Step 4.2: Set the cooking pressure to a preset pressure value (e.g., 0.1 MPa). The pressure transmitter 513 detects the pressure inside the tank and can control the opening of the cooking exhaust gas regulating valve 507 through PID regulation. Open the whip valves of the composite mold inoculation diaphragm valve 503 and the fermentation bacteria inoculation diaphragm valve 504 near the end of the fermentation heat preservation tank 500 so that the inoculation pipeline can be sterilized.

[0105] Step 4.3: When the pressure transmitter 513 detects that the pressure inside the tank reaches the preset pressure value (0.1MPa), the timing starts. When the cooking reaches the preset time value (10-15 minutes), the steam shut-off ball valve 529 and the steam regulating valve 528 of the return air pipe are closed, the opening of the cooking exhaust gas regulating valve 507 is fully opened, and the whip valves of the composite mold inoculation diaphragm valve 503 and the fermentation bacteria inoculation diaphragm valve 504 near the end of the fermentation heat preservation tank 500 are closed.

[0106] Step 5: Flour Feeding

[0107] Step 5.1: Start the flour warehouse auger 201 to transport the flour raw materials from the grain warehouse into the flour feed hopper 202, and open the flour weighing tank feed valve 206 to feed the soybean weighing tank 100.

[0108] Step 5.2: When the weighing sensor 210 of the flour weighing tank detects that the preset full capacity of the flour weighing tank 200 has been reached, close the feed valve 206 of the flour weighing tank.

[0109] Step 5.3: Open the compressed air blowing valve 205 of the flour weighing tank. When the pressure transmitter 207 of the flour weighing tank detects that the pressure has reached the set value, open the anti-blocking agitator 208 of the flour weighing tank and the first soybean flour feeding valve 517, the second soybean flour feeding valve 518, the third soybean flour feeding valve 519, and the fourth soybean flour feeding valve 520 on the upper part of the fermentation and heat preservation tank 500. Then open the soybean weighing tank discharge valve 109 to allow soybeans to be sprayed into the fermentation and heat preservation tank 500.

[0110] Step 5.4: The flour hopper level switch 203 detects the level and stops the flour warehouse feeding auger 201 when the preset level value is reached. When the flour weighing tank pressure transmitter 207 detects that the pressure has reached a low level, it means that the flour in the flour weighing tank 200 has been sprayed out. Repeat steps 5.1 to 5.3 to perform multiple flour sprayings, and spray out the remaining flour in the flour weighing tank 200 in the last time.

[0111] Step Six: Sterilize the flour

[0112] Step 6.1: Set the simmering time to the preset value (e.g., 10 minutes) and run it according to steps 4.1 to 4.3 of the soybean steaming process;

[0113] Step 7: Cooling the material

[0114] Step 7.1: Open the sterile air ball valve 526 on the return air duct of the online mixer 559. The sterile compressed air regulating valve 525 on the return air duct can be adjusted by PID. Open the circulating cooling water valve 569 on the cooling coil at the rear of the online mixer 559. Fully open the cooking exhaust gas regulating valve 507. Open the first circulating air return valve 534, the second circulating air return valve 535, the third circulating air return valve 536, the fourth circulating air return valve 537, the fifth circulating air return valve 538, the sixth circulating air return valve 539, the seventh circulating air return valve 540, and the eighth circulating air return valve 541, which are connected in the space below the dewatering screen plate 544 of the fermentation heat preservation tank 500.

[0115] Step 7.2: Start the mixer 600 for rapid tillage;

[0116] Step 7.3; When the temperature and humidity sensor 512 detects that the temperature has reached the preset value (e.g., around 37°C), stop the agitator 600, close the cooking exhaust gas regulating valve 507, close the circulating cooling water valve 569, the return air duct sterile air ball valve 526, the return air duct sterile compressed air regulating valve 525, the first circulating air return valve 534, the second circulating air return valve 535, the third circulating air return valve 536, the fourth circulating air return valve 537, the fifth circulating air return valve 538, the sixth circulating air return valve 539, the seventh circulating air return valve 540, and the eighth circulating air return valve 541;

[0117] Step 8: Inoculation of the starter culture

[0118] Step 8.1: Open the steam switch valve 407 of the composite mold inoculation tank for steam sterilization, open the braided valves of the composite mold inoculation tank vent regulating diaphragm valve 403, the composite mold inoculation tank compressed air diaphragm valve 405, the composite mold inoculation diaphragm valve 503, and the composite mold inoculation tank diaphragm valve 402 near the composite mold inoculation tank 400, the composite mold inoculation tank pressure transmitter 404 detects the sterilization pressure, adjust the composite mold inoculation tank vent regulating diaphragm valve 403 to maintain the tank pressure at the preset pressure value (0.1MPa), and perform sterilization for a preset time (e.g., 30 minutes);

[0119] Step 8.2: After the sterilization time (30 minutes) is completed, close the braided valves of the compound mold inoculation tank venting regulating diaphragm valve 403, the compound mold inoculation tank compressed air diaphragm valve 405, and the compound mold inoculation tank diaphragm valve 402 near the compound mold inoculation tank 400. Open the compound mold inoculation tank compressed air diaphragm valve 405. Adjust the compound mold inoculation tank venting regulating diaphragm valve 403 so that the compound mold inoculation tank 400 is pressurized to the preset pressure value (about 0.1MPa). Then close the compound mold inoculation tank compressed air diaphragm valve 405.

[0120] Step 8.3: The compound mold inoculation tank 400 begins to cool down naturally. When the temperature sensor 406 detects that the temperature inside the compound mold inoculation tank 400 is lower than the preset value (around 37°C), the opening of the compound mold inoculation tank venting regulating diaphragm valve 403 is fully opened, and the compound mold inlet diaphragm valve 402 is opened. The compound mold liquid prepared by Aspergillus oryzae and Aspergillus niger inoculation in a preset ratio (e.g., 3:1) is transported into the compound mold inoculation tank 400. The amount of compound mold liquid is about 2% of the total amount of soybean and flour materials. When the metering of the compound mold feed flow meter 401 reaches the inoculation amount, the compound mold inlet diaphragm valve 402 and the compound mold inoculation tank venting regulating diaphragm valve 403 are closed.

[0121] Step 8.4: Open the compressed air diaphragm valve 405 and the composite mold inoculation diaphragm valve 503, and the feed water main shut-off valve 516 of the composite mold inoculation tank to force the composite mold liquid out of the composite mold inoculation tank 400 by sterile compressed air, and spray it onto the surface of the cooked and cooled material through multiple washing balls.

[0122] Step Nine: Composing the Music

[0123] Step 9.1: After the compound mold liquid is sprayed onto the surface of the material after cooking and cooling, the bacteria begin to proliferate on the surface of the material. During the early stage of fermentation, the temperature is controlled between the lowest preset temperature value and the highest preset temperature value (e.g., between 30 and 35°C) within the preset time.

[0124] When the temperature is lower than the minimum preset temperature (30℃), the heating steps include:

[0125] Step 9.1.1: Open the circulating air passage and turn on the circulating air valve 509, return air pipe shut-off valve 527, first circulating air return valve 534, second circulating air return valve 535, third circulating air return valve 536, fourth circulating air return valve 537, fifth circulating air return valve 538, sixth circulating air return valve 539, seventh circulating air return valve 540 and eighth circulating air return valve 541;

[0126] Step 9.1.2: Maintain the fermentation heat preservation tank 500 at a slightly positive pressure. The pressure transmitter 513 detects the pressure inside the fermentation heat preservation tank 500 and adjusts the opening of the fermentation waste gas treatment regulating valve 508 to keep the pressure inside the tank not lower than the preset value (e.g., 0.01MPa).

[0127] Step 9.1.3: Open the return air duct steam shut-off ball valve 529. According to the temperature detected by the temperature and humidity sensor 512, adjust the ventilation speed of the return air duct steam regulating valve 528 and the variable frequency fan 530 to raise the temperature. When the temperature reaches the preset value, close the variable frequency fan 530, the return air duct steam shut-off ball valve 529 and the return air duct steam regulating valve 528.

[0128] Step 9.1.4: Close the circulating air duct, and close the circulating air valve 509, the return air pipe shut-off valve 527, the first circulating air return valve 534, the second circulating air return valve 535, the third circulating air return valve 536, the fourth circulating air return valve 537, the fifth circulating air return valve 538, the sixth circulating air return valve 539, the seventh circulating air return valve 540, and the eighth circulating air return valve 541.

[0129] When the temperature exceeds the maximum preset temperature (35℃), the cooling process includes:

[0130] Step 9.1.5: Open the circulating air passage, referring to Step 9.1.1;

[0131] Step 9.1.6: Maintain a slight positive pressure in the tank, refer to step 9.1.2.

[0132] Step 9.1.7: Open the sterile air ball valve 526 of the return air duct, and according to the temperature detected by the temperature and humidity sensor 512, fully open the sterile compressed air regulating valve 525 of the return air duct, set the speed of the variable frequency fan 530 to 50 Hz for full-speed ventilation, and stop the variable frequency fan 530 and the sterile compressed air regulating valve 525 of the return air duct when the temperature reaches the preset value (the temperature value that meets the process requirements).

[0133] Step 9.1.8: Close the recirculating air duct, referring to step 9.1.4;

[0134] Step 9.2: After setting the koji preparation time, proceed to the next step of turning the koji, and set the stirring time of the mash to the preset value;

[0135] Step 9.2.1: Open the circulating air passage, referring to Step 9.1.1;

[0136] Step 9.2.2: Maintain a slight positive pressure in the tank, referring to step 9.1.2;

[0137] Step 9.2.3: Start the mixer at 600 RPM to slowly stir the starter or mash;

[0138] Step 9.2.4: Activate the variable frequency fan 530 at a lower speed. When the oxygen concentration detector 511 detects that the oxygen content of the circulating air is lower than the preset value (e.g., 18%), open the sterile air ball valve 526 in the return air duct and adjust the opening of the sterile compressed air regulating valve 525 in the return air duct. When the temperature and humidity sensor 512 detects that the humidity of the circulating return air is lower than the preset value, open the steam shut-off ball valve 529 in the return air duct. The steam regulating valve 528 in the return air duct can be adjusted by PID control to maintain a certain humidity.

[0139] Step 9.2.5: When the humidity reaches the preset value (the temperature value that meets the process requirements), close the corresponding return air duct sterile air ball valve 526 and return air duct sterile compressed air regulating valve 525. When the temperature meets the process requirements, close the return air duct steam shut-off ball valve 529 and adjust the return air duct steam regulating valve 528.

[0140] Step 9.2.6: Perform the curve flipping operation once every pre-set time value (5 hours), referring to Steps 9.2.1 and 9.2.5;

[0141] Step 9.2.7: Maintain the highest preset temperature value (30℃) during the mid-stage fermentation of koji making. When the temperature exceeds the highest preset temperature value (30℃), refer to step 9.1.1 to open the corresponding valve, open the circulating air channel, start the variable frequency fan 530, and open the sterile air ball valve 526 of the return air duct according to the temperature and humidity sensor 512, and adjust the opening degree of the sterile compressed air regulating valve 525 of the return air duct.

[0142] Step 9.3: After the preset fermentation time value in the middle stage of koji making, you can proceed to the next fermentation operation. Turn on the viewing mirror light 521, and the high-definition camera 522 can check the status of the koji material. When the koji material turns yellow-green, it means that the koji making is complete.

[0143] Step 9.4, referring to step 9.1.4, close the circulating air duct, close the sterile air ball valve 526 and the sterile compressed air regulating valve 525 of the return air duct, and stop the variable frequency fan 530;

[0144] Step 10: Fermentation

[0145] Step 10.1: Open the washing water reuse valve 542 to deliver the washed water recovered brine after impurity removal and filtration to the fermentation heat preservation tank 500. The washing water reuse flow meter 543 measures the amount of washed water recovered brine used. After the washed water recovered brine is delivered, close the washing water reuse valve 542.

[0146] Step 10.2: Open the main shut-off valve 516 for feed water and the brine feed valve 501. The fermentation and heat preservation tank 500 will start to receive warm brine at a preset temperature (45-50℃) through the feed water flow meter 506.

[0147] Step 10.3: The temperature is controlled at the highest preset temperature value (35℃). If a temperature increase is required, refer to steps 9.1.1 to 9.1.4. If a temperature decrease is required, refer to steps 9.1.5 to 9.1.7.

[0148] Step 10.4: After adding the warm brine, quickly stir the mash and set the stirring time to the preset value (10 minutes);

[0149] Step 10.4.1: Follow the steps in step 9.1.1 to open the circulating air passage, open the sterile air ball valve 526 of the return air duct, fully open the sterile compressed air regulating valve 525 of the return air duct, start the variable frequency fan 530 for high-speed ventilation, and at the same time, the agitator 600 stirs at medium speed, for example, at a speed of 2 revolutions per minute to quickly stir the mash.

[0150] Step 10.4.2: After the stirring time of the mash reaches the preset value (10 minutes), follow the steps in step 9.1.4 to close the circulating air channel, close the sterile air ball valve 526 and the sterile compressed air regulating valve 525 of the return air pipe, and stop the variable frequency fan 530 and the agitator 600.

[0151] Step 10.5: Repeat stirring every preset number of days (e.g., every 2 days), following the steps 10.4.1 and 10.4.2.

[0152] Step 10.6: When fermentation reaches the preset number of days (e.g., day 7), repeat steps 9.2.1 to 9.2.3 once;

[0153] Step 10.7: During the subsequent preset number of days (e.g., 15 days), in the first half of the period, the stirring step is performed once every first preset number of days (e.g., 3 days) as described in Steps 9.2.1 to 9.2.3, and in the second half of the period, the stirring step is performed once every second preset number of days (e.g., 5 days) as described in Steps 9.2.1 to 9.2.3.

[0154] Step 10.8: During the middle stage of fermentation, control the temperature at the preset value. If it is necessary to raise the temperature, refer to Step 9.1.1 and Step 9.1.4. If it is necessary to lower the temperature, refer to Step 9.1.5 and Step 9.1.7.

[0155] Step 10.9: Open the steam switch valve 307 of the fermentation inoculation tank for steam sterilization, open the braided valves of the fermentation inoculation tank vent regulating diaphragm valve 303, the fermentation inoculation tank compressed air diaphragm valve 305, the fermentation inoculation diaphragm valve 504, and the fermentation inoculation diaphragm valve 302 near the fermentation inoculation tank 300, the fermentation inoculation tank pressure transmitter 304 detects the sterilization pressure, adjust the fermentation inoculation tank vent regulating diaphragm valve 303 to maintain the tank pressure at the preset pressure value (0.1MPa), and perform sterilization for a preset time (e.g., 30 minutes);

[0156] Step 10.10: After the sterilization is completed within the preset time (30 minutes), close the vent regulating diaphragm valve 303, the compressed air diaphragm valve 305, and the braided valve of the fermentation inoculation tank diaphragm valve 302 near the fermentation inoculation tank 300. Open the compressed air diaphragm valve 305, adjust the vent regulating diaphragm valve 303 to pressurize the fermentation inoculation tank 300 to the preset pressure value (about 0.1 MPa), and then close the compressed air diaphragm valve 305.

[0157] Step 10.11: The fermentation inoculation tank 300 begins to cool down naturally. When the temperature sensor 306 detects that the temperature inside the fermentation inoculation tank 300 is lower than the preset value (around 37°C), the fermentation inlet diaphragm valve 302 is opened and the venting regulating diaphragm valve 303 is fully opened, so that the mixed fermentation starter liquid made from lactic acid fermentation liquid and yeast fermentation liquid is transported into the fermentation inoculation tank 300. The amount of mixed fermentation starter liquid is about 10% of the total amount of starter. When the fermentation feed flow meter 301 measures the inoculation amount, the fermentation inlet diaphragm valve 302 and the venting regulating diaphragm valve 303 are closed.

[0158] Step 10.12: Open the compressed air diaphragm valve 305, the fermentation inoculation diaphragm valve 504 and the feed water main shut-off valve 516 of the fermentation inoculation tank. The mixed fermentation liquid is forced out of the fermentation inoculation tank 300 by sterile compressed air and sprayed onto the fermentation mash through multiple washing balls.

[0159] Step 10.13: After the fermentation mash is cooled to the highest preset temperature (35℃), it enters the post-fermentation stage. The cooling steps are the same as in step 9.1.2.

[0160] Step 10.14: The post-fermentation temperature is maintained at the highest preset temperature value (35℃) for a preset number of weeks (e.g., 2 weeks). When the temperature exceeds the highest preset temperature value (35℃), refer to step 9.1.1 to open the corresponding valve, open the circulating air channel, start the variable frequency fan 530 to detect the temperature according to the temperature and humidity sensor 512, open the sterile air ball valve 526 of the return air duct and adjust the opening degree of the sterile compressed air regulating valve 525 of the return air duct.

[0161] Step 10.15: During the post-fermentation heat preservation period, stir once every preset number of days (e.g., 3 days), and set the stirring time for each time to a preset value (e.g., 10 minutes). Refer to Step 9.2.2 and Step 9.2.3 for the stirring operation steps;

[0162] Step 10.16: After the fermentation time is up, the viewing mirror light 521 is turned on, and the image is viewed through the high-definition camera 522;

[0163] Step 11: Discharge

[0164] Step 11.1: Open the discharge valve 545, the compound mold inoculation diaphragm valve 503, the fermentation bacteria inoculation diaphragm valve 504 and the feed water main shut-off valve 516, and at the same time open the fermentation bacteria inoculation tank compressed air diaphragm valve 305 and the compound mold inoculation tank compressed air diaphragm valve 405 to pressurize the fermentation heat preservation tank 500.

[0165] Step 11.2: Start the soybean paste discharge screw pump 551 to deliver the soybean paste; when the discharge flow switch 566 detects no flow, close the compound mold inoculation diaphragm valve 503, the fermentation bacteria inoculation diaphragm valve 504, the feed water main shut-off valve 516, the fermentation bacteria inoculation tank compressed air diaphragm valve 305, and the compound mold inoculation tank compressed air diaphragm valve 405.

[0166] Step Twelve: Tank Cleaning and Water Recovery

[0167] The feed rate of brine for concentrated wash tank water recovery can be set to 0.1 cubic meters;

[0168] Step 12.1: Open the brine feed valve 501 and the main feed water shut-off valve 516. Spray the residual soybean paste in the cleaning tank through the first washing ball 560, the second washing ball 561, the third washing ball 562, and the fourth washing ball 563. After the feed water flow meter 506 measures the brine to reach the set brine level, close the brine feed valve 501 and the main feed water shut-off valve 516.

[0169] Step 12.2: When the discharge flow switch 566 detects no flow again, close the discharge valve 545, open the sterile air top discharge pipeline valve 547, and discharge the soybean paste from the top-air soybean paste screw pump 551 and its discharge pipeline.

[0170] The feed rate of brine for secondary tank washing water recovery can be set to 0.3 cubic meters;

[0171] Step 12.3: Repeat step 12.1;

[0172] Step 12.4: Open the residual water recovery valve 546 and the washing tank recovery water valve 549, start the outlet centrifugal pump 552, and send the washing tank brine to the treatment room for processing and reuse. When the return water flow switch 564 detects that the flow rate is zero, turn off the agitator 600;

[0173] The automation control of this invention, applicable to an integrated automatic soybean paste production equipment, can be carried out with reference to the above process design, and will not be described in detail here.

[0174] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. An integrated automatic soybean paste production equipment, characterized in that, include: Fermentation insulated tank (500); A soybean weighing tank (100) is used for weighing soybeans and spraying soybeans into the fermentation insulated tank (500); A flour weighing tank (200) is used for weighing flour and spraying flour into the fermentation insulated tank (500); Fermentation inoculation tank (300) is used to spray the inoculum into the fermentation heat preservation tank (500); A compound mold inoculation tank (400) is used to spray the inoculum into the fermentation and heat preservation tank (500); A stirrer (600) is used to stir the materials in the fermentation tank (500); The integrated automatic soybean paste production equipment also includes a variable frequency fan (530), several circulating air ducts, a waste gas recycling duct (558), a dehydration screen plate (544), and an online mixer (559). The fermentation heat preservation tank (500) is provided with a dehydration screen plate (544) at its inner bottom. The air inlet of the variable frequency fan (530) is connected to one end of the waste gas recycling duct (558). The air outlet of the variable frequency fan (530) is connected to the inlet of the online mixer (559) through a pipeline. The outlet of the online mixer (559) is connected to the inner cavity of the fermentation heat preservation tank (500) located below the dehydration screen plate (544) through several circulating air ducts. A circulating air return valve is provided on the circulating air duct. The integrated automatic soybean paste production equipment also includes an exhaust gas pipe (557) connected to the top cavity of the fermentation and heat preservation tank (500). The exhaust gas recycling pipe (558) is connected to the exhaust gas pipe (557) to form a circulation loop. The circulation loop is equipped with a circulation air valve (509) and an exhaust gas treatment regulating valve (508). Several of the circulating air return valves are evenly distributed in a ring around the bottom periphery of the fermentation heat preservation tank (500). The integrated automatic soybean paste production equipment also includes several soybean flour feeding valves connected to the top of the fermentation and heat preservation tank (500). The blowing pipes of the discharge end of the soybean weighing tank (100) and the discharge end of the flour weighing tank (200) are interconnected and respectively connected to several soybean flour feeding valves, so that the soybeans and flour are mixed and then enter the fermentation and heat preservation tank (500) through several soybean flour feeding valves. The integrated automatic soybean paste production equipment also includes a liquid discharge centrifugal pump (552), a first pipeline (570), a second pipeline (571), a third pipeline (572), and a fourth pipeline (573). One end of the fourth pipeline (573) is connected to the inner bottom cavity of the fermentation heat preservation tank (500), and the other end of the fourth pipeline (573) is connected to the liquid inlet of the liquid discharge centrifugal pump (552). The liquid outlet of the liquid discharge centrifugal pump (552) is connected to one end of the first pipeline (570). The second pipeline (571) is connected to the middle of the inner cavity of the fermentation heat preservation tank (500). One end of the third pipeline (572) is connected to the second pipeline (571), and the other end of the third pipeline (572) is connected to the first pipeline (570).

2. The integrated automatic soybean paste production equipment as described in claim 1, characterized in that, The fermentation inoculation tank (300) includes a first strain discharge pipe, and the compound mold inoculation tank (400) includes a second strain discharge pipe. The first strain discharge pipe and the second strain discharge pipe merge and connect to form a combined pipe, which is connected to the top of the inner cavity of the fermentation heat preservation tank (500).

3. The integrated automatic soybean paste production equipment as described in claim 2, characterized in that, The first strain discharge pipe is connected to a fermentation bacteria inoculation diaphragm valve (504), the second strain discharge pipe is connected to a compound mold inoculation diaphragm valve (503), the combined pipe is connected to three branch pipes, and the three branch pipes are respectively connected to a brine feed valve (501), a hot water feed valve (502) and a bean soaking water recycling treatment water feed valve (505).

4. The integrated automatic soybean paste production equipment as described in claim 1, characterized in that, The integrated automatic soybean paste production equipment also includes a discharge valve (545), a sterile air top discharge pipe valve (547), and a soybean paste discharge screw pump (551). The discharge pipe at the bottom of the fermentation heat preservation tank (500) is connected to the discharge valve (545) and then connected to the inlet of the soybean paste discharge screw pump (551).

5. A production method of the integrated automatic soybean paste production equipment as described in any one of claims 1-4, characterized in that, Includes the following steps: Step 1: Soybean Feeding The soybeans are weighed using a soybean weighing tank (100) and then sprayed into the fermentation and heat preservation tank (500). Step 2: Wash the beans Pour washing water into the fermentation and heat preservation tank (500), start the agitator (600) to turn over and wash the soybeans, and then discharge the washing wastewater. Step 3: Soaking soybeans Pour warm water into the fermentation insulated tank (500) to soak the soybeans, and then drain the soaking wastewater. Step 4: Steaming soybeans Steam is introduced into the fermentation insulated tank (500) to cook the soybeans; Step 5: Flour Feeding The flour is weighed using a flour weighing tank (200), and the weighed flour is sprayed into the fermentation and heat preservation tank (500). Step Six: Sterilize the flour Steam is introduced into the fermentation and heat preservation tank (500) to sterilize the flour at high temperature; Step 7: Cooling the material The fermentation tank (500) is circulated and ventilated, and the agitator (600) is started to turn the soil. Step 8: Inoculation of the starter culture The inoculum is sprayed into the fermentation and heat preservation tank (500) through a composite mold inoculation tank (400); Step Nine: Composing the Music The temperature, humidity and oxygen content in the fermentation tank (500) are controlled, and the mash is stirred by a stirrer (600); Step 10: Fermentation The inoculum from the fermentation inoculation tank (300) is sprayed into the fermentation heat preservation tank (500), and the mash is stirred by the agitator (600). Step 11: Discharge Drain the soybean paste from the fermentation insulated tank (500); Step 12: Tank Cleaning Pour cleaning water into the fermentation insulated tank (500) and start the agitator (600) to clean the inside of the fermentation insulated tank (500).

Images