Spore recovery device and use method of spore recovery device

Abstract

The present invention discloses a spore recovery device and a use method thereof, the spore recovery device comprises: a base provided with a gas inlet for the inflow of tail gas of a koji making chamber; the collecting hopper is arranged on the lower side of the machine base and communicates with the air inlet, and when the tail gas flows through the collecting hopper, large-particle dust in the tail gas is separated by inertia force and gravity and falls into the bottom of the collecting hopper; the filter box is used for filtering the tail gas, the filter box is arranged on the upper side of the machine base and communicates with the collecting hopper, the filter box is provided with a plurality of sinter plates which are linearly arranged, and when the tail gas sequentially penetrates through the sinter plates, spores of the tail gas are blocked on the outer surfaces of the sinter plates; and the air outlet box is arranged on the machine base and communicates with the output end of the filter box, and an air outlet is formed in the air outlet box so as to discharge filtered tail gas. A sinter plate is adopted to replace a cloth bag, and an intelligent control exhaust system is combined, so that the spore recovery efficiency and purity are remarkably improved, infectious microbe breeding is reduced, the maintenance cost is reduced, and intelligent operation in the koji making process is realized.

Description

Technical Field

[0001] The invention relates to the technical field of recovery equipment for a fermentation process of sauce-type food, and in particular to a spore recovery device and a method for using the spore recovery device applied to the spore recovery device. Background Art

[0002] During the koji making process, especially during the microbial fermentation process, a large amount of spore dust particles will be generated. These spore particles are very small and easily suspended in the air. If they are not recovered in time and effectively, they will not only cause a waste of resources, but may also pollute the environment and affect production safety. Therefore, the effective recovery of spores is of great significance to improving koji making efficiency and product quality.

[0003] At present, the commonly used spore recovery method in the industry is to use bag filters to capture spores in the air. The working principle of bag filters is to intercept spore particles in the air through the filtering effect of the bags. However, the surface of the bags is relatively rough, which makes it easy for the recovered spores to remain on the surface of the bags and difficult to completely remove. In addition, since the spores gather on the bags, they will also promote the growth of miscellaneous bacteria, thereby affecting the quality of the spores and subsequent production efficiency.

[0004] Specifically, the prior art has the following problems: Specific technical issues 1. Low spore recovery efficiency: The surface of the existing bag dust collector is rough, which makes it easy for spores to remain on the surface of the bag, resulting in low recovery efficiency.

[0005] 2. Bacteria breeding: Spores gather on the cloth bag, providing growth conditions for bacteria and affecting the purity of the spores.

[0006] 3. High maintenance cost: The bags need to be cleaned or replaced regularly, which increases maintenance cost and workload.

[0007] 4. Low degree of automation: Most existing spore recovery devices rely on manual operation and cannot achieve intelligent control, which affects production efficiency. Summary of the invention

[0008] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a spore recovery device, which uses a plastic sintered plate instead of a cloth bag and combines an intelligently controlled exhaust system to significantly improve the spore recovery efficiency and purity, reduce the growth of miscellaneous bacteria, reduce maintenance costs, realize intelligent operation of the koji making process, simplify the operation process, and improve production efficiency and environmental protection performance.

[0009] The present invention also provides a method for using the spore recovery device applied to the spore recovery device.

[0010] The spore recovery device according to the present invention comprises: The engine base is provided with an air inlet, and the air inlet is used for the exhaust gas from the cranking chamber to flow into the engine base; A collecting bucket is arranged at the lower side of the machine base and is connected to the air inlet. When the exhaust gas flows through the collecting bucket, large dust particles in the exhaust gas are separated by inertia and gravity and fall into the bottom of the collecting bucket. A filter box, used for filtering the exhaust gas, the filter box is arranged on the upper side of the machine base and communicated with the collecting bucket, the filter box is provided with a plurality of linearly arranged plastic burning plates, when the exhaust gas passes through the plurality of plastic burning plates in sequence, the spores of the exhaust gas are retained on the outer surface of the plastic burning plates; An air outlet box is arranged on the machine base and is connected to the output end of the filter box. The air outlet box is provided with an air outlet to discharge the filtered exhaust gas.

[0011] The spore recovery device according to the present invention has at least the following beneficial effects: a plastic-burned plate is used as a filter material, and a system including a machine base, a collecting bucket, a filter box and an air outlet box is designed, which not only significantly improves the efficiency and quality of spore recovery, but also effectively reduces the growth of miscellaneous bacteria; wherein, through the design of the collecting bucket, large particles of dust are first separated by gravity and inertial force, thereby reducing the burden of subsequent filtration; then, the plastic-burned plate is used to efficiently capture spores, and its smooth surface makes it easy to collect the spores and not easy to remain, thereby avoiding the problem of spore residue caused by the rough surface of traditional cloth bags; in addition, the plastic-burned plate has a high filtering accuracy, can effectively block tiny spore particles, while maintaining a low airflow resistance, ensuring a good ventilation effect, and solving the problems of low spore recovery efficiency and miscellaneous bacteria growth in the prior art.

[0012] According to the spore recovery device described in some embodiments of the present invention, the plurality of plastic-sintered plates are arranged in multiple rows.

[0013] According to the spore recovery device described in some embodiments of the present invention, the plastic-sintered plate has a wavy structure.

[0014] According to the spore recovery device described in some embodiments of the present invention, the filter box is provided with a purification component to purify the spores on the plastic sintering plate.

[0015] According to the spore recovery device described in some embodiments of the present invention, the purification component includes an air storage bag and a plurality of pulse valves spaced apart in the air storage bag, and the pulse valve is used to open the air storage bag and spray the spores on the sintered plate.

[0016] According to the spore recovery device described in some embodiments of the present invention, the machine base is provided with a negative pressure fan, and the negative pressure fan is used to extract the exhaust gas from the filter box to the air outlet box.

[0017] According to the spore recovery device described in some embodiments of the present invention, the machine base is provided with a direct exhaust air duct, one end of the direct exhaust air duct is connected to the air inlet, and the other end is connected to the outside of the machine base, and the direct exhaust air duct is provided with a first electric air valve to drive the air inlet to connect or block the outside of the machine base.

[0018] According to the spore recovery device described in some embodiments of the present invention, the air outlet box includes an exhaust air duct and an exhaust air duct, one end of the exhaust air duct is connected to the exhaust end of the negative pressure fan, and the other end is connected to the output end of the filter box, one end of the exhaust air duct is connected to the exhaust end of the negative pressure fan, and the other end is connected to the output end of the straight exhaust air duct to discharge the exhaust gas to the outside, and the exhaust air duct is provided with a second electric air valve to drive the exhaust air duct and the straight exhaust air duct to be connected or blocked.

[0019] According to the spore recovery device described in some embodiments of the present invention, an air inlet duct is provided at the input end of the collecting bucket, and the air inlet duct is provided with a third electric air valve to drive the air inlet to connect or block the collecting bucket.

[0020] The method for using the spore recovery device according to the present invention is applied to the spore recovery device according to the present invention; The method of use comprises the following steps: Detecting the koji making period: According to the production start signal and the koji turning signal of the koji making room, the koji turning signal is counted to determine the koji making period; Direct external exhaust: during the detection of the koji making period, if it is determined that the koji making is in the early stage, the second electric air valve and the third electric air valve are closed, and the first electric air valve is opened to discharge the exhaust gas directly; Recovery and external discharge: during the detection of the koji making period, if it is determined that the koji making is in the middle and late stages, the first electric air valve is closed, the second electric air valve, the negative pressure fan and the third electric air valve are opened, and the exhaust gas is discharged from the collecting bucket, the filter box and the air outlet box in sequence; Stop external discharge. After recovering the external discharge, if it is determined that the koji making is in the completion stage, first open the first electric air valve, then close the third electric air valve, the negative pressure fan and the second electric air valve in sequence, and then close the first electric air valve.

[0021] The method for using the spore recovery device according to the present invention has at least the following beneficial effects: in the early stage of koji making, due to the high indoor moisture content, the amount of spore dust in the air is small, at this time, the second electric air valve and the third electric air valve are closed, and the first electric air valve is opened to discharge the exhaust gas directly, thereby avoiding unnecessary energy consumption and equipment wear. This direct external discharge method ensures that the system can operate efficiently and reduces energy waste in the stage where spore recovery is not required; when the koji making enters the middle and late stages, the indoor air contains a large amount of spore dust particles and spore recovery is required. At this time, the first electric air valve is closed, and the second electric air valve, the negative pressure fan and the third electric air valve are opened to discharge the exhaust gas directly. It is discharged after passing through the collecting bucket, filter box and air outlet box in sequence. In this way, it can be ensured that the system can efficiently recover spores during the spore discharge stage, thereby improving the recovery efficiency and quality. At the same time, the introduction of the negative pressure fan ensures the stability and continuity of the airflow, and improves the reliability and efficiency of the entire system. After the koji making is completed, in order to ensure the correct shutdown and maintenance of the system, first open the first electric air valve, then close the third electric air valve, the negative pressure fan and the second electric air valve in turn, and finally close the first electric air valve. This orderly closing sequence will fully discharge the internal spore-containing exhaust gas from the equipment, avoiding equipment damage and waste of resources, and ensuring the safety and reliability of the system.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 This is a partial structural schematic diagram of a spore recovery device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the overall structure of a spore recovery device according to an embodiment of the present invention; Figure 3 The present invention is a flowchart of a method for using a spore recovery device according to an embodiment of the present invention.

[0024] Description of Figure Numbers: Machine base 100; air inlet 101; direct exhaust air duct 110; first electric air valve 111; The collecting bucket 200; the air filter inlet 201; the air inlet duct 210; the third electric air valve 211; Filter box 300; filter air outlet 301; plastic sintering plate 310; purification component 320; air storage bag 321; pulse valve 322; Air exhaust duct 410; air outlet duct 420; second electric air valve 421; Negative pressure fan 500. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0029] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0030] During the koji making process, especially during the microbial fermentation process, a large amount of spore dust particles will be generated. These spore particles are very small and easily suspended in the air. If they are not recovered in time and effectively, they will not only cause a waste of resources, but may also pollute the environment and affect production safety. Therefore, the effective recovery of spores is of great significance to improving koji making efficiency and product quality.

[0031] At present, the commonly used spore recovery method in the industry is to use bag filters to capture spores in the air. The working principle of bag filters is to intercept spore particles in the air through the filtering effect of the bags. However, the surface of the bags is relatively rough, which makes it easy for the recovered spores to remain on the surface of the bags and difficult to completely remove. In addition, since the spores gather on the bags, they will also promote the growth of miscellaneous bacteria, thereby affecting the quality of the spores and subsequent production efficiency.

[0032] Specifically, the prior art has the following problems: Specific technical issues 1. Low spore recovery efficiency: The surface of the existing bag dust collector is rough, which makes it easy for spores to remain on the surface of the bag, resulting in low recovery efficiency.

[0033] 2. Bacteria breeding: Spores gather on the cloth bag, providing growth conditions for bacteria and affecting the purity of the spores.

[0034] 3. High maintenance cost: The bags need to be cleaned or replaced regularly, which increases maintenance cost and workload.

[0035] 4. Low degree of automation: Most existing spore recovery devices rely on manual operation and cannot achieve intelligent control, which affects production efficiency.

[0036] For this reason, Figure 1 and Figure 2As shown, the spore recovery device proposed by the present invention includes a machine base 100, a collecting bucket 200, a filter box 300 and an air outlet box. The collecting bucket 200, the filter box 300 and the air outlet box are all arranged on the machine base 100, and the machine base 100 is provided with an air inlet 101 for the exhaust gas from the koji making chamber to flow in. The exhaust gas passes through the collecting bucket 200, the filter box 300 and the air outlet box in sequence and then is discharged from the machine base 100. Specifically, the collecting bucket 200 is arranged on the lower side of the machine base 100 and is connected to the air inlet 101. When the exhaust gas flows through the collecting bucket 200, the large particles of dust in the exhaust gas are separated by inertia and gravity and fall into the bottom of the collecting bucket 200. Furthermore, the filter box 300 is used to filter the exhaust gas. The filter box 300 is arranged on the upper side of the machine base 100 and is connected to the collecting bucket 200. The filter box 300 is provided with a plurality of linearly arranged plastic burning plates 310. When the exhaust gas passes through the plurality of plastic burning plates 310 in sequence, the spores of the exhaust gas are retained on the outer surface of the plastic burning plates 310. In addition, the air outlet box is arranged on the machine base 100 and is connected to the output end of the filter box 300. The air outlet box is provided with an air outlet to discharge the filtered exhaust gas. It should be noted that a plastic-sintered plate 310 is used as a filter material, and a system including a machine base 100, a collecting bucket 200, a filter box 300 and an air outlet box is designed, which not only significantly improves the efficiency and quality of spore recovery, but also effectively reduces the growth of miscellaneous bacteria; wherein, through the design of the collecting bucket 200, gravity and inertia are first used to separate large particles of dust, thereby reducing the burden of subsequent filtration; then, the plastic-sintered plate 310 is used to efficiently capture spores, and its smooth surface makes it easy to collect the spores and not easy to remain, thus avoiding the problem of spore residue caused by the rough surface of traditional cloth bags; in addition, the plastic-sintered plate 310 has a high filtering accuracy, can effectively block tiny spore particles, while maintaining a low airflow resistance, ensuring a good ventilation effect, and solving the problems of low spore recovery efficiency and miscellaneous bacteria growth in the prior art.

[0037] Refer to Figure 1 In some embodiments of the present invention, a plurality of plastic-sintered plates 310 are arranged in multiple rows. This layout not only increases the filtration area and improves the filtration efficiency, but also better adapts to the tail gas treatment requirements of different flow rates and pressures, ensuring that efficient spore recovery effects can be maintained throughout the koji making process. For example, there are 126 plastic-sintered plates and they are arranged in a 3*42 array. Optionally, the plastic-sintered plates have a wavy structure (not shown in the figure). This design increases the surface area of ​​the plastic-sintered plates 310 and further improves the filtration efficiency. In addition, the wavy structure can also reduce the resistance of the airflow when it passes through, making the airflow distribution more uniform, thereby improving the filtration effect and extending the service life of the plastic-sintered plates 310.

[0038] Further, in some embodiments of the present invention, Figure 1As shown, the filter box 300 is provided with a purification component 320 to purify the spores on the plastic sintering plate 310. By regularly removing the spores on the plastic sintering plate 310, the spores are prevented from accumulating too much and causing the filtering effect to decrease, while reducing the breeding of miscellaneous bacteria, ensuring the purity and recovery quality of the spores. Specifically, the purification component 320 includes an air storage bag 321 and a plurality of pulse valves 322 arranged at intervals in the air storage bag 321. The pulse valve 322 is used to open the air storage bag 321 and spray the spores on the plastic sintering plate 310. Furthermore, by the pulse spraying of high-pressure gas, the spores on the plastic sintering plate 310 can be efficiently removed, the plastic sintering plate 310 can be kept clean, its service life can be extended, and the maintenance frequency and cost can be reduced.

[0039] In some applications, refer to Figure 1 The base 100, the collection bucket 200 and the filter box 300 can form an independent filtering system. Correspondingly, the input end of the filtering system is the filter air inlet 201 arranged at the input end of the collection bucket 200, and the output end of the filtering system is the filter air outlet 301 arranged at the output end of the filter box 300. Figure 2 In some embodiments of the present invention, the machine base 100 is provided with a negative pressure fan 500, and the negative pressure fan 500 is used to extract the exhaust gas from the filter box 300 to the air outlet box. It should be noted that the introduction of the negative pressure fan 500 ensures the stability and continuity of the airflow, improves the reliability and efficiency of the entire system, and also facilitates the control and adjustment of the airflow speed to adapt to different koji making stages.

[0040] In addition, if Figure 2 As shown, in some embodiments of the present invention, the machine base 100 is provided with a direct exhaust duct 110, one end of the direct exhaust duct 110 is connected to the air inlet 101, and the other end is connected to the outside of the machine base 100, and the direct exhaust duct 110 is provided with a first electric air valve 111 to drive the air inlet 101 to be connected or blocked with the outside of the machine base 100. This design allows the exhaust gas to be directly discharged in the early stage of koji making, avoiding unnecessary energy consumption and equipment wear, while ensuring the flexibility and adaptability of the system. Furthermore, in some embodiments of the present invention, the air outlet box includes an exhaust duct 410 and an outlet duct 420, one end of the exhaust duct 410 is connected to the exhaust end of the negative pressure fan 500, and the other end is connected to the output end of the filter box 300, that is, Figure 1The filter outlet 301 is shown. One end of the air outlet duct 420 is connected to the air outlet end of the negative pressure fan 500, and the other end is connected to the output end of the straight exhaust duct 110 to discharge the exhaust gas to the outside. Among them, the air outlet duct 420 is provided with a second electric air valve 421 to drive the air outlet duct 420 and the straight exhaust duct 110 to be connected or blocked, and then, by precisely controlling the air flow path, efficient operation is ensured in different koji making stages, thereby improving the reliability and automation level of the system. In addition, in some embodiments of the present invention, the input end of the collecting bucket 200 is provided with an air inlet duct 210, that is, the air inlet duct 210 is connected to the Figure 1 The air filter inlet 201 is connected as shown, and the air inlet duct 210 is provided with a third electric air valve 211 to drive the air inlet 101 to connect or block the collecting bucket 200, further enhancing the flexibility of the system, and the air flow path can be flexibly adjusted in different koji making stages to ensure the best filtering effect and energy efficiency.

[0041] It should be noted that the coordinated use of the first electric air valve 111, the second electric air valve 421 and the third electric air valve 211 can control the flow direction of the exhaust gas in the flexure chamber, so that it can be directly discharged or flow into the filter system for filtration and then discharged intelligently. In addition, corresponding sensors can be set at the air inlet duct 210, the air outlet duct 420 and the direct exhaust duct 110 to sense the exhaust gas. For example, a particle sensor can be installed at the air inlet duct 210, the air outlet duct 420 or the direct exhaust duct 110; for another example, an air pressure sensor can be installed at the air inlet duct 210, the air outlet duct 420 or the direct exhaust duct 110; and then, combined with the detection signal of the sensor, the exhaust gas can be processed more intelligently.

[0042] Refer to Figure 3 , the method for using the spore recovery device according to the embodiment of the present invention is applied to the spore recovery device according to the embodiment of the present invention.

[0043] The method of use includes the following steps: S100, detecting the koji making period: according to the production start signal and the koji turning signal of the koji making room, counting the koji turning signal to determine the koji making period; S200, direct exhaust: during the detection of the koji making period, if it is determined that the koji making is in the early stage, the second electric air valve 421 and the third electric air valve 211 are closed, and the first electric air valve 111 is opened to discharge the exhaust gas directly; S300, recovery and external discharge: During the detection of the koji making period, if it is determined that the koji making is in the middle and late stages, the first electric air valve 111 is closed, the second electric air valve 421, the negative pressure fan 500 and the third electric air valve 211 are opened, and the exhaust gas is discharged from the collecting bucket 200, the filter box 300 and the air outlet box in sequence; S400, stop external discharge. After recovering the external discharge, if it is determined that the koji making is in the completion stage, first open the first electric air valve 111, then close the third electric air valve 211, the negative pressure fan 500 and the second electric air valve 421 in sequence, and then close the first electric air valve 111.

[0044] According to the method for using the spore recovery device of the embodiment of the present invention, by adopting the spore recovery device of the embodiment of the present invention, in the early stage of koji making, due to the high indoor moisture, the amount of dust raised by spores in the air is small. At this time, the second electric air valve 421 and the third electric air valve 211 are closed, and the first electric air valve 111 is opened to directly discharge the exhaust gas, thereby avoiding unnecessary energy consumption and equipment wear. This direct external discharge method ensures that the system can operate efficiently and reduces energy waste in the stage where spore recovery is not required. When the koji making enters the middle and late stages, the indoor air contains a large amount of spore dust particles and spore recovery is required. At this time, the first electric air valve 111 is closed, and the second electric air valve 421, the negative pressure fan 500 and the third electric air valve 211 are opened. The exhaust gas is discharged after passing through the collecting bucket 200, the filter box 300 and the air outlet box in sequence. In this way, it can be ensured that the system can efficiently recover the spores during the spore discharge stage, thereby improving the recovery efficiency and quality. At the same time, the introduction of the negative pressure fan 500 ensures the stability and continuity of the airflow, thereby improving the reliability and efficiency of the entire system. After the koji making is completed, in order to ensure the correct shutdown and maintenance of the system, the first electric air valve 111 is opened first, and then the third electric air valve 211, the negative pressure fan 500 and the second electric air valve 421 are closed in sequence, and finally the first electric air valve 111 is closed. This orderly closing sequence fully discharges the exhaust gas containing spores from the equipment, thereby avoiding equipment damage and waste of resources, and ensuring the safety and reliability of the system.

[0045] Other configurations and operations of the method for using the spore recovery device according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0046] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A spore recovery device, characterized in that: include: The engine base is provided with an air inlet, and the air inlet is used for the exhaust gas from the cranking chamber to flow into the engine base; A collecting bucket is arranged at the lower side of the machine base and is connected to the air inlet. When the exhaust gas flows through the collecting bucket, large dust particles in the exhaust gas are separated by inertia and gravity and fall into the bottom of the collecting bucket. A filter box, used for filtering the exhaust gas, the filter box is arranged on the upper side of the machine base and communicated with the collecting bucket, the filter box is provided with a plurality of linearly arranged plastic burning plates, when the exhaust gas passes through the plurality of plastic burning plates in sequence, the spores of the exhaust gas are retained on the outer surface of the plastic burning plates; An air outlet box is arranged on the machine base and is connected to the output end of the filter box. The air outlet box is provided with an air outlet to discharge the filtered exhaust gas.

2. The spore recovery device according to claim 1, characterized in that: The plurality of plastic-sintered plates are arranged in multiple rows.

3. The spore recovery device according to claim 1, characterized in that: The plastic sintered plate has a wavy structure.

4. The spore recovery device according to claim 1, characterized in that: The filter box is provided with a purification component to purify the spores on the plastic sintering plate.

5. The spore recovery device according to claim 4, characterized in that: The purification component comprises an air storage bag and a plurality of pulse valves spaced apart from each other on the air storage bag, wherein the pulse valve is used to open the air storage bag and spray the spores on the sintered plate.

6. The spore recovery device according to any one of claims 1 to 5, characterized in that: The machine base is provided with a negative pressure fan, and the negative pressure fan is used to extract the exhaust gas from the filter box to the air outlet box.

7. The spore recovery device according to claim 6, characterized in that: The machine base is provided with a direct exhaust air duct, one end of which is connected to the air inlet, and the other end is connected to the outside of the machine base. The direct exhaust air duct is provided with a first electric air valve to drive the air inlet to connect or block the outside of the machine base.

8. The spore recovery device according to claim 7, characterized in that: The air outlet box includes an exhaust duct and an exhaust duct, one end of the exhaust duct is connected to the exhaust end of the negative pressure fan, and the other end is connected to the output end of the filter box, one end of the exhaust duct is connected to the exhaust end of the negative pressure fan, and the other end is connected to the output end of the straight exhaust duct to discharge the exhaust gas to the outside, and the exhaust duct is provided with a second electric air valve to drive the exhaust duct and the straight exhaust duct to be connected or blocked.

9. The spore recovery device according to claim 8, characterized in that: An air inlet duct is provided at the input end of the collecting bucket, and the air inlet duct is provided with a third electric air valve to drive the air inlet to communicate with or block the collecting bucket.

10. A method for using a spore recovery device, characterized in that: Applicable to the spore recovery device of claim 9; The method of use comprises the following steps: Detecting the koji making period: According to the production start signal and the koji turning signal of the koji making room, the koji turning signal is counted to determine the koji making period; Direct external exhaust: during the detection of the koji making period, if it is determined that the koji making is in the early stage, the second electric air valve and the third electric air valve are closed, and the first electric air valve is opened to discharge the exhaust gas directly; Recovery and external discharge: during the detection of the koji making period, if it is determined that the koji making is in the middle and late stages, the first electric air valve is closed, the second electric air valve, the negative pressure fan and the third electric air valve are opened, and the exhaust gas is discharged from the collecting bucket, the filter box and the air outlet box in sequence; Stop external discharge. After recovering the external discharge, if it is determined that the koji making is in the completion stage, first open the first electric air valve, then close the third electric air valve, the negative pressure fan and the second electric air valve in sequence, and then close the first electric air valve.

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