Modular system for digesting grain mould by utilizing ozone gas

Abstract

The invention relates to the technical field of grain disinfection and sterilization, in particular to a modular system for digesting grain mould by utilizing ozone gas, which comprises a modular grain mould digesting device, an ozone gas preparation gas source system and a pipeline distribution system, the modular grain mould digestion device comprises a grain unloading pit, a spiral drum screening machine, a pretreatment stock bin, an ozone treatment stock bin reactor, a buffer hopper and a plurality of elevators, and the grain unloading pit, the spiral drum screening machine, the pretreatment stock bin, the ozone treatment stock bin reactor and the buffer hopper are arranged in sequence. Through modular design, intelligent control and a uniform ozone distribution technology, the problems of low efficiency, non-uniform distribution, high cost and the like in an existing grain mould treatment method are solved, efficient digestion of grain moulds is realized, meanwhile, the safety and the environmental protection property of the treatment process are ensured, and the treatment cost is reduced. And an efficient and environment-friendly solution is provided for safe storage and processing of grains.

Description

Technical Field

[0001] The present invention relates to the technical field of grain disinfection and sterilization, and particularly relates to a modular system for eliminating grain mold by using ozone gas. Background Art

[0002] Mycotoxins appear in the food chain because crops are infested by fungi before and after harvest. Fungi that can produce mycotoxins grow on various different crops and a variety of foods, including grains, nuts, spices, coffee, cocoa, beans, and lentils. Mycotoxins pose a serious threat to human health, causing long-term effects from acute poisoning to immune deficiency, malnutrition, stunted child development, and cancer. Mycotoxins also have a significant impact on the economy, and farmers, grain dealers, and milling companies are all affected by losses caused by mycotoxin poisoning. Problems with mycotoxins such as aflatoxin in the food and feed supply chain are becoming increasingly serious. The toxin is carcinogenic and causes various other health problems. Therefore, it is urgent to solve the problem of easy mold generation in grain and cereals.

[0003] So far, an effective solution has emerged to remove mycotoxins, fumonisins, and other contaminants from grains and feeds, especially corn, wheat, and oilseed meals: almost all mycotoxins have a chemical structure that can be attacked by ozone, thus eliminating mycotoxins. Ozone is a gas with extremely strong oxidizing properties and can be completely converted into oxygen through a chemical reaction within a few hours at room temperature. The sterilization mechanism of ozone is to release nascent oxygen through its decomposition and diffuse in space. It can quickly penetrate the cell walls and cell membranes of microorganisms such as fungi and bacteria, damage the cell membrane, and continue to penetrate into the membrane tissue, causing the denaturation of the microbial protein, the destruction of the enzyme system, the disorder and suspension of the normal physiological metabolism process, resulting in the shock and death of the microbial body and being killed, achieving the effects of disinfection, sterilization, and anti-corrosion. The main role of ozone sterilization is to release nascent oxygen through decomposition and diffuse in space. Therefore, the diffusion effect of ozone in grains has an important impact on ozone sterilization.

[0004] Existing technologies such as the application number: 202220072133.X, the theme name: An ozone device for green disinfection and sterilization of grains, continuously eliminates microorganisms and pests in the grain pile in the granary through ozone, extending the storage time of the grain pile in the granary. However, the existing granaries have a volume of up to 1000 - 10000 tons, and it is difficult for the existing ozone sterilization system to achieve uniform distribution of ozone in large granaries, resulting in inconsistent sterilization effects and poor sterilization effects on grains. Summary of the Invention

[0005] In view of the above problems, the present invention proposes a modular grain mold digestion device and an ozone gas preparation system. Through modular design, intelligent control, and uniform ozone distribution technology, the present invention solves the problems of low efficiency, uneven distribution, and high cost in existing grain mold treatment methods, realizes the efficient digestion of grain mold, and at the same time ensures the safety and environmental protection of the treatment process, providing an efficient and environmentally friendly solution for the safe storage and processing of grain.

[0006] The solution adopted by the present invention to solve its technical problems is: a modular system for digesting grain mold using ozone gas, including a modular grain mold digestion device, an ozone gas preparation gas source system, and a pipeline distribution system. The modular grain mold digestion device includes a grain unloading pit, a spiral drum screening machine, a pretreatment bin, an ozone treatment bin reactor, a buffer hopper, and multiple elevators. The grain unloading pit, spiral drum screening machine, pretreatment bin, ozone treatment bin reactor, and buffer hopper are arranged in sequence. The elevators are arranged between two adjacent mechanical structure modules to play the role of lifting and transporting grain. Samplers are installed at positions near the outlets of the pretreatment bin, ozone treatment bin reactor, and buffer hopper. The samplers sample and detect the mold content of the grain, and the detection results are transmitted to the ozone gas preparation gas source system. The ozone gas preparation gas source system is used to prepare ozone. The ozone gas preparation gas source system passes ozone gas into the ozone treatment bin reactor through the pipeline distribution system, and eliminates and molds the grain in the ozone treatment bin reactor through ozone gas. The ozone gas preparation gas source system controls the concentration and flow rate of the ozone gas according to the detection results of the sampler, and determines whether the mold content of the grain meets the standard according to the detection results. If it does not meet the standard, the grain is sent back to the ozone treatment bin reactor for re-treatment.

[0007] Further, a scraper conveyor A is provided at the bottom outlet of the grain unloading pit. The output end of the scraper conveyor A is connected to a bucket elevator A. The grain inlet of the bucket elevator A corresponds to the output end of the scraper conveyor A, and the grain outlet is connected to the spiral drum screening machine through a pipeline. The bottom outlet of the spiral drum screening machine is connected to the grain inlet of a bucket elevator B. The top grain outlet of the bucket elevator B is connected to the pretreatment bin through a pipeline. The bottom outlet of the pretreatment bin is connected to the grain inlet of a bucket elevator C through a pipeline. The grain outlet of the bucket elevator C is connected to the ozone treatment bin reactor through a pipeline. The outlet of the ozone treatment bin reactor is connected to the grain inlet of a bucket elevator D. The grain outlet of the bucket elevator D is connected to the top inlet of the buffer hopper.

[0008] Further, a sampler A is installed on the pretreatment bin, and a sampler B is installed on the buffer hopper.

[0009] Further, a scraper conveyor B is provided at the outlet of the buffer hopper. The input end of the scraper conveyor B is correspondingly connected to the bottom outlet of the buffer hopper, and the output end of the scraper conveyor B is connected to the bottom grain inlet of the bucket elevator C8. If it is detected that the mold content in the buffer hopper is still not up to standard, the unqualified moldy grains are conveyed again to the bucket elevator C through the scraper conveyor B and then lifted again by the bucket elevator C to the ozone treatment silo reactor for re-mold removal and sterilization.

[0010] Further, the ozone treatment silo reactor includes an outer wall and an inner wall. A plurality of reaction chambers are arranged vertically inside the inner wall. The ozone prepared by the ozone gas preparation gas source system flows into the reaction chambers through the pipeline distribution system to disinfect the moldy grains inside. An inlet is provided at the top of the ozone treatment silo reactor, and the inlet is connected to the outlet of the bucket elevator C through a silo feed pipe.

[0011] Further, a sampler C is installed on the bucket elevator D for sampling and detecting the grains flowing into the bucket elevator D.

[0012] Further, the inlet at the top of the ozone treatment silo reactor is connected to the top grain outlet of the bucket elevator C and at the same time to the top grain outlet of the bucket elevator D. If the sampler C detects and determines that the mold content of the grains is not up to standard, the unqualified grains are directly re-conveyed into the ozone treatment silo reactor through the top grain outlet of the bucket elevator D for re-sterilization.

[0013] Further, the pipeline distribution system includes a main pipeline connected to the high-voltage electrolytic ozone system of the ozone gas preparation gas source system. A plurality of shunt pipelines are connected to the main pipeline, and each reaction chamber is communicated with the pipeline distribution system through a shunt pipeline. A metering needle valve is installed on each shunt pipeline.

[0014] Further, the ozone gas preparation gas source system includes an air compressor, a dryer, a pressure gas storage tank, a molecular sieve oxygen generator, and a high-voltage electrolytic ozone system connected in sequence. The main pipeline of the pipeline distribution system 1 is connected to the outlet of the high-voltage electrolytic ozone system, and the prepared ozone gas is conveyed to the modular grain mold digestion device through the pipeline distribution system.

[0015] Further, a bag filter is provided above the grain unloading pit for grain dust removal.

[0016] Advantages of the present invention: Efficient mold digestion: Through the strong oxidation of ozone, the chemical structure of mycotoxins can be completely destroyed, converted into non-toxic molecules, and the mycotoxin content in grains can be significantly reduced; during the ozone treatment process, ozone destroys the molecular structure of mycotoxins by oxidizing double bonds, achieving efficient sterilization and detoxification; Modular Design: The device adopts a modular structure, including modules such as a grain unloading pit, a screw drum screening machine, a pretreatment silo, an ozone treatment silo reactor, and a buffer hopper. These modules are connected by elevators and conveyors, facilitating installation, maintenance, and expansion. The modular design enables the device to flexibly adapt to different processing requirements and site conditions; Intelligent Control: The device is equipped with an advanced PLC control system and a SCADA monitoring system, which can automatically adjust the concentration and flow rate of ozone gas according to the mold content detected by the sampler, ensuring the consistency and stability of the treatment effect. It has a high degree of automation, reduces manual intervention, and lowers operation risks.

[0017] Uniform Ozone Distribution: Ozone is evenly distributed into each reaction chamber of the ozone treatment silo reactor through a pipeline distribution system, ensuring that the grain can fully contact ozone during the treatment process, improving the sterilization effect. Each reaction chamber is equipped with an independent metering needle valve, which can accurately control the ozone flow rate to ensure the uniformity and thoroughness of sterilization.

[0018] Energy Saving and Environmental Protection: Ozone can be rapidly decomposed into oxygen at room temperature without chemical residues, and the treatment process is environmentally friendly and pollution-free. The device adopts an efficient ozone generation system and an energy-saving design, reducing energy consumption and operating costs.

[0019] Multiple Detection and Recycling Mechanism: Samplers are installed on the pretreatment silo, the ozone treatment silo reactor, and the buffer hopper, which can detect the mold content of the grain multiple times to ensure that the treated grain fully meets the standards. For the grain that does not meet the standards, it is sent back to the ozone treatment silo reactor through a scraper conveyor and an elevator for re-treatment to ensure the safety of the final product; Wide Application Range: This device is applicable to a variety of grain crops, including corn, wheat, soybeans, etc., and can meet the grain processing needs of different scales and types. It can be used for pre-storage treatment or pre-processing of grains to ensure the quality and safety of grains during storage and processing. Description of the Drawings

[0020] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the structural schematic diagram of the modular grain mold digestion device of the present invention; Figure 3 is the structural schematic diagram of the ozone gas preparation gas source system of the present invention; Figure 4 is Figure 2 the enlarged schematic diagram of a partial structure in Figure 5 is Figure 2 the enlarged schematic diagram of a partial structure in Figure 6Schematic structural diagram of the ozone treatment silo reactor of the present invention.

[0021] In the figure: 1, grain unloading pit; 2, scraper conveyor A; 3, bucket elevator A; 4, bag filter; 5, spiral drum screening machine; 6, bucket elevator B; 7, pretreatment silo; 8, bucket elevator C; 9, ozone treatment silo reactor; 91, outer silo wall; 92, inner silo wall; 93, reaction chamber; 94, feed inlet; 95, silo feed pipe; 10, pipeline distribution system; 101, main pipeline; 102, shunt pipeline; 103, metering needle valve; 11, bucket elevator D; 12, buffer discharging device; 13, buffer hopper; 14, scraper conveyor B; 15, sampler A; 16, sampler B; 17, sampler C; 18, control panel; 19, high-voltage electrolytic ozone system; 20, molecular sieve oxygen generator; 21, pressure gas storage tank; 22, adsorption dryer; 23, air compressor; 24, centralized electrical control room. Specific embodiments

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please refer to Figures 1-6 , the present invention provides a technical solution for a modular system for using ozone gas to eliminate grain molds. The ozone sterilization production line includes advanced process control for automatic material handling, including 3-5 elevators, and the correct flow of grain through the reactor to the purification buffer silo. The detoxification process requires advanced process control because it involves many inputs / outputs and complex multi-parameter calculations. This process is automatically controlled by a PLC and can be tracked on the HMI screen or remotely. If the level of miscellaneous bacteria contamination at the ozone inlet fluctuates, the automatic process control can more easily optimize the material input and output. According to the input of sample detection, the detoxification flux can be manually adjusted, and the mycotoxin levels of the incoming and outgoing grains are measured regularly to ensure that the throughput is optimized while maintaining below the required aflatoxin / mycotoxin target concentration threshold.

[0024] This processing line not only overcomes this specific challenge, but also removes other biological organisms such as bacteria, mites, and insects in the crops. By using the ozonation process, the mycotoxin level is safely reduced below the acceptable threshold for humans and animals. This technology can be used for pre-storage to ensure safe long-term storage or pre-treatment to ensure high-quality feed or food. This solution is a green technology that is friendly to humans, animals, and the environment, and no residues are left in the detoxified crops. Embodiment

[0025] According to Figure 1 and Figure 2As shown in the figure, a modular system for eliminating grain mold using ozone gas. The modular grain mold elimination device mainly includes a grain unloading pit 1, a spiral drum screening machine 5, a pretreatment bin 7, an ozone treatment bin reactor 9, a buffer hopper 13, and multiple elevators. The grain unloading pit 1, the spiral drum screening machine 5, the pretreatment bin 7, the ozone treatment bin reactor 9, and the buffer hopper 13 are arranged in sequence. The elevators are arranged between two adjacent mechanical structure modules and play a role in lifting and transporting the grain. The elevators used in this solution are the commonly used lifting mechanisms in the prior art. The spiral drum screening machine 5 is used to screen the grain conveyed into it and remove the sundries in the grain to prevent the sundries from affecting the grain quality. A sampler A15 is installed on the pretreatment bin 7. After the grain is conveyed into the pretreatment bin 7 by the elevator, the sampler A15 can sample and detect the mold content of the grain in the pretreatment bin 7, and the detection result is transmitted to the ozone gas preparation gas source system. After the grain in the pretreatment bin 7 is sampled and detected, it is sent into the ozone treatment bin reactor 9 by the elevator. The ozone gas preparation gas source system controls the concentration and flow rate of the ozone gas according to the detection result of the sampler A15. The ozone gas preparation gas source system evenly introduces ozone gas into the ozone treatment bin reactor 9 through the pipeline distribution system 10. Mycotoxins can be eliminated by ozone. The reaction mechanism of ozone sterilization is that ozone acts by oxidizing double bonds, thereby destroying the molecular structure and generating new non-toxic molecules to achieve the elimination of molds in the moldy grain. The grain after elimination enters the buffer hopper 13 for storage. A sampler B16 is also installed on the buffer hopper 13 to finally detect the mold content of the grain after elimination to determine whether the mold content of the grain meets the standard.

[0026] Specifically, a scraper conveyor A2 is provided at the bottom outlet of the grain unloading pit 1, and a bag filter 4 is provided above the grain unloading pit 1. The bag filter 4 is used to remove dust from the downwardly conveyed grain. The input end of the scraper conveyor A2 faces the outlet of the grain unloading pit 1, and the output end is connected to a bucket elevator A3. The scraper conveyor A2 is used to convey the grain into the bucket elevator A3 for upward lifting. The bottom grain inlet of the bucket elevator A3 is connected to the output end of the corresponding scraper conveyor A2, and the top grain outlet is connected to the top inlet of a spiral drum screening machine 5 through a pipeline. The bucket elevator A3 is used to lift and convey the grain upward into the spiral drum screening machine 5. The bottom outlet of the spiral drum screening machine 5 is connected to a bucket elevator B6 through a grain conveying pipeline. The spiral drum screening machine 5 is used to screen out impurities in the grain. The bottom feed inlet of the bucket elevator B6 is connected to the outlet of the spiral drum screening machine 5, and the top grain outlet is connected to a pretreatment silo 7 through a grain conveying pipeline. The bucket elevator B6 is used to lift and convey the screened grain into the pretreatment silo 7. A sampler A15 is installed on the side of the pretreatment silo 7 for initially detecting the mold content of the grain. The bottom outlet of the pretreatment silo 7 is connected to a bucket elevator C8 through a grain conveying pipeline. The bottom grain inlet of the bucket elevator C8 is connected to the bottom outlet of the pretreatment silo 7, and the top grain outlet is connected to an ozone treatment silo reactor 9 through a pipeline. The bucket elevator C8 is used to lift and convey the moldy grain after initial detection into the ozone treatment silo reactor 9 for disinfection operation. The bottom outlet of the ozone treatment silo reactor 9 is connected to a bucket elevator D11. The bottom grain inlet of the bucket elevator D11 is connected to the outlet of the ozone treatment silo reactor 9, and the top grain outlet is connected to the top inlet of a buffer hopper 13 through a pipeline. The bucket elevator D11 is used to lift and convey the grain sterilized in the ozone treatment silo reactor 9 into the buffer hopper 13 for storage.

[0027] A sampler B16 is installed on the buffer hopper 13 for final detection of the mold content of the grain. A scraper conveyor B14 is provided at the bottom outlet of the buffer hopper 13. The input end of the scraper conveyor B14 is correspondingly connected to the bottom outlet of the buffer hopper 13, and the output end is connected to the bottom grain inlet of the bucket elevator C8. If the mold content of the grain in the buffer hopper 13 is still not up to standard, the unqualified mold can be conveyed to the bucket elevator C8 again through the scraper conveyor B14 and lifted to the ozone treatment silo reactor 9 again by the bucket elevator C8 for re-decontamination and sterilization, so as to ensure that the mold content of the grain can fully meet the standard and improve the grain quality.

[0028] The specific structure of the ozone treatment silo reactor 9 is as Figure 6As shown in the figure, the ozone treatment silo reactor 9 includes an outer silo wall 91 and an inner silo wall 92. A plurality of reaction chambers 93 are arranged vertically inside the inner silo wall 92. Angle boxes are arranged inside the reaction chambers. Grains pass through each reaction chamber 93 from top to bottom. A sandwich gap is left between the outer silo wall 91 and the inner silo wall 92. Ozone prepared by the ozone gas preparation gas source system flows into the sandwich gap through the pipeline distribution system 10, and enters the reaction chamber 93 through the sandwich gap to disinfect the moldy grains inside. The inner wall of the reaction chamber 93 is sprayed with ceramic and carbide anti-corrosion materials to ensure long-term use. Each reaction chamber 93 is equipped with an independent ozone gas metering needle valve to facilitate the uniform distribution of ozone airflow in each reaction chamber and ensure the sterilization effect. An inlet 94 is arranged at the top of the ozone treatment silo reactor 9. The inlet 94 is connected to the outlet of the bucket elevator C8 through the silo feed pipe 95. A buffer discharging device 12 is arranged near the bottom outlet of the ozone treatment silo reactor 9.

[0029] The uniquely designed ozone treatment silo reactor 9 detoxifies the grains during the process of the grains flowing downward in the ozone treatment silo reactor 9, reducing unwanted mycotoxins. The advantage of this design is that all mycotoxins and fumonisins with double-bond chemical structures will be attacked and reduced. Theoretically, the degree of mycotoxin reduction is mainly proportional to the material treatment time. Therefore, the entire process of mold and bacteria elimination in the ozone treatment silo reactor 9 is monitored by a PLC-based system and SCADA (software control and data acquisition system). The ozone sterilization system equipment can be customized to meet the customer's requirements for efficient "washing" of toxic substances. The exact capacity of the ozone reactor depends on the degree of miscellaneous bacteria contamination and the material size in a specific application.

[0030] The modular grain mold elimination device is connected to the ozone gas preparation gas source system through the pipeline distribution system 10. The ozone generated by the ozone gas preparation gas source system is transported to the ozone treatment silo reactor 9 of the modular grain mold elimination device through the pipeline distribution system 10 to realize the mold and bacteria elimination work on the moldy grains in the ozone treatment silo reactor 9. Specifically, the pipeline distribution system 10 includes a main pipeline 101 connected to the high-voltage electrolytic ozone system 19 of the ozone gas preparation gas source system. A plurality of shunt pipelines 102 are connected to the main pipeline 101 according to the number of reaction chambers 93. Each reaction chamber 93 is connected to the pipeline distribution system 10 through the shunt pipeline 102. An independent metering needle valve 103 is installed on each shunt pipeline 102. The metering needle valve 103 is used to control the ozone input amount of the current reaction chamber 93, facilitate the uniform distribution of ozone airflow in each reaction chamber, and can accurately control the ozone gas flow rate, which is convenient for sterilization and insecticidal treatment of grains of different varieties and qualities.

[0031] The main components such as the elevator, scraper conveyor, bag filter, and silo of the screw drum screening machine in the modular grain mold digestion device are all common standardized mechanical structures on the market. The above-mentioned various modular mechanical structures jointly form the working pipeline of this solution. In the prior art, the mechanical structures that can achieve the corresponding functions can be arbitrarily assembled and applied in this modular grain mold digestion device.

[0032] Workflow: The moldy grain falls on the scraper conveyor A2 through the grain unloading pit 1 and is conveyed by the scraper conveyor A2 to the first bucket elevator A3. At the same time, the dust raised by the grain in the grain unloading pit 1 enters the bag filter 4 for dust removal. After the bucket elevator A3 conveys the grain into the screw drum screening machine 5 for cleaning and screening, it is lifted to the pretreatment silo 7 by the second bucket elevator B6, and the sampler A15 is used to sample and detect the content value of toxins in the grain. After being detected by the toxin detection equipment and determining the required ozone amount and concentration for subsequent processing, the moldy grain is then conveyed to the ozone treatment silo reactor 9 by the third bucket elevator C8. The ozone prepared by the ozone gas preparation gas source system is evenly distributed into each reaction chamber 93 through the main pipeline 101 and the shunt pipeline 102 of the pipeline distribution system 10, and fully contacts and reacts with the moldy grain in the chamber. While killing the mold with ozone, the grain flows downward from the upper part of the ozone treatment silo reactor 9. After being sterilized, the grain is discharged from the bottom of the ozone treatment silo reactor 9 into the bucket elevator D11, and then lifted upward by the bucket elevator D11 and conveyed to the clean buffer hopper 13 at the end. Then, the sampler B16 installed on the buffer hopper 13 samples again and detects whether the mold content of the grain meets the standard. If the mold content of the grain does not meet the standard, the non-compliant grain is conveyed back to the bucket elevator C8 again through the scraper conveyor B14 at the bottom of the buffer hopper 13, and then lifted by the bucket elevator C8 and returned to the ozone treatment silo reactor 9 for reprocessing. If the mold content of the grain meets the standard, the qualified grain is subjected to subsequent packaging treatment or stored in a clean silo. Embodiment

[0033] According to Figure 1 and Figure 3As shown in the figure, an ozone gas preparation gas source system applied to the device provided in Embodiment 1 mainly consists of a cooling water tank (optional), an air compressor 23, a gas storage tank 21 with a filter, a refrigerated air dryer with a filter and a cold water machine with condensate drainage (which can be placed on the top of the container after installation), an adsorption dryer 22, a molecular sieve oxygen generator 20 for producing pure oxygen for the ozone generator, a precision filter, an ozone gas flow measurement system (needle valve and corrosion-resistant flow valve), etc. Specifically, the ozone gas preparation gas source system includes an air compressor 23, an adsorption dryer 22, a pressure gas storage tank 21, a molecular sieve oxygen generator 20, and a high-voltage electrolytic ozone system 19. The above system structures are arranged and connected in sequence. The air compressor 23 is used to extract air and compress and transmit it into the adsorption dryer 22. The adsorption dryer 22 is used to dry the compressed air and then transmit it into the pressure gas storage tank 21. The pressure gas storage tank 21 stores the compressed air and gradually conveys the compressed air into the molecular sieve oxygen generator 20. After the air enters the molecular sieve oxygen generator 20, oxygen molecules are first prepared, and the prepared oxygen molecules finally flow into the high-voltage electrolytic ozone system 19, where ozone is generated by high-voltage electrolysis. The main pipeline 101 of the pipeline distribution system 10 is connected to the air outlet of the high-voltage electrolytic ozone system 19. The prepared ozone gas is conveyed to the modular grain mold digestion device through the pipeline distribution system 10 to remove mold and bacteria from the moldy grain.

[0034] The entire device and system are controlled and operated by the control panel 18 in the centralized electrical control room 24. The working process of the gas source system is controlled and managed by the centralized electrical control room 24. The concentration and flow rate of the supplied ozone gas are adjusted according to the data of the first sampling and the second sampling for detecting the mold content. Embodiment

[0035] A sampler C17 is also installed on the bucket elevator D11. The grain after being disinfected by the ozone treatment silo reactor 9 flows towards the bottom of the silo and is lifted upward by the bucket elevator D11. The sampler C17 samples and detects the grain that is about to be lifted into the buffer silo after preliminary disinfection again. The feeding port 94 at the top of the ozone treatment silo reactor 9 is connected to the top grain outlet of the bucket elevator C8 and at the same time is connected to the top grain outlet of the bucket elevator D11. The sampler C17 intermittently samples and detects the grain flowing into the bucket elevator D11. If it is detected that the mold content of the grain does not meet the standard, the non-compliant grain is directly lifted by the bucket elevator D11 and then re-transported into the ozone treatment silo reactor 9 through the pipeline from the top grain outlet of the bucket elevator D11 for sterilization operation again. After such a setting, the non-compliant grain does not need to enter the buffer hopper 13 anymore, reducing the conveying path of the non-compliant grain and improving the working efficiency.

[0036] The foregoing are only the preferred embodiments of the present invention and do not limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A modular system for eliminating grain molds using ozone gas, comprising a modular grain mold elimination device, an ozone gas preparation gas source system, and a pipeline distribution system, characterized in that, The modular grain mold digestion device includes a grain unloading pit, a spiral drum screening machine, a pretreatment silo, an ozone treatment silo reactor, a buffer hopper, and multiple elevators. The grain unloading pit, the spiral drum screening machine, the pretreatment silo, the ozone treatment silo reactor, and the buffer hopper are arranged in sequence. The elevators are arranged between two adjacent mechanical structure modules to play the role of lifting and transporting grain. Samplers are installed on the pretreatment silo and the buffer hopper. The samplers sample and detect the mold content of the grain, and the detection results are transmitted to the ozone gas preparation gas source system. The ozone gas preparation gas source system is used to prepare ozone. The ozone gas preparation gas source system injects ozone gas into the ozone treatment silo reactor through a pipeline distribution system, and eliminates bacteria and molds in the grain in the ozone treatment silo reactor through the ozone gas. Moreover, the ozone gas preparation gas source system controls the concentration and flow rate of the ozone gas according to the detection results of the sampler, and determines whether the mold content of the grain meets the standard according to the detection results. If it does not meet the standard, the grain is sent back to the ozone treatment silo reactor for re-treatment.

2. The modular system for eliminating grain mold by using ozone gas according to claim 1, wherein, A scraper conveyor A is arranged at the bottom outlet of the grain unloading pit. The output end of the scraper conveyor A is connected to a bucket elevator A. The grain inlet of the bucket elevator A corresponds to the output end of the scraper conveyor A, and the grain outlet is connected to the spiral drum screening machine through a pipeline. The bottom outlet of the spiral drum screening machine is connected to the grain inlet of a bucket elevator B. The top grain outlet of the bucket elevator B is connected to the pretreatment silo through a pipeline. The bottom outlet of the pretreatment silo is connected to the grain inlet of a bucket elevator C through a pipeline. The grain outlet of the bucket elevator C is connected to the ozone treatment silo reactor through a pipeline. The outlet of the ozone treatment silo reactor is connected to the grain inlet of a bucket elevator D. The grain outlet of the bucket elevator D is connected to the top inlet of the buffer hopper.

3. The modular system for eliminating grain mold by using ozone gas according to claim 1, wherein A sampler A is installed on the pretreatment silo, and a sampler B is installed on the buffer hopper.

4. A modular system for eliminating grain molds using ozone gas according to claim 2 or 3, characterized in that, A scraper conveyor B is arranged at the outlet of the buffer hopper. The input end of the scraper conveyor B is correspondingly connected to the bottom outlet of the buffer hopper. The output end of the scraper conveyor B is connected to the bottom grain inlet of a bucket elevator C8. If it is detected that the mold content of the grain in the buffer hopper still does not meet the standard, the non-compliant mold is transported back to the bucket elevator C through the scraper conveyor B and is lifted to the ozone treatment silo reactor again by the bucket elevator C for re-disinfection and sterilization.

5. A modular system for eliminating grain mold using ozone gas according to claim 1, characterized in that, The ozone treatment silo reactor includes an outer wall and an inner wall. A plurality of reaction chambers are arranged up and down inside the inner wall. The ozone prepared by the ozone gas preparation gas source system flows into the reaction chambers through a pipeline distribution system to eliminate bacteria in the internal moldy grain. The top of the ozone treatment silo reactor is provided with a feed inlet, and the feed inlet is connected to the discharge outlet of the bucket elevator C through a silo feed pipe.

6. The modular system for eliminating grain molds by using ozone gas according to claim 2, characterized in that, A sampler C is installed on the bucket elevator D for sampling and detecting the grain flowing into the bucket elevator D.

7. The modular system for eliminating grain molds by using ozone gas according to claim 6, characterized in that, The feed inlet at the top of the ozone treatment silo reactor is connected to the top grain outlet of bucket elevator C and at the same time to the top grain outlet of bucket elevator D. If sampler C detects and determines that the mold content of the grain does not meet the standard, the non-compliant grain is directly re-transported into the ozone treatment silo reactor through the top grain outlet of bucket elevator D for re-sterilization.

8. A modular system for eliminating grain molds using ozone gas according to claim 1, characterized in that, The pipeline distribution system includes a main pipeline connected to the high-voltage electrolytic ozone system of the ozone gas preparation gas source system. Multiple shunt pipelines are connected to the main pipeline, and each reaction chamber is connected to the pipeline distribution system through a shunt pipeline. A metering needle valve is installed on each shunt pipeline.

9. The modular system for eliminating grain molds by using ozone gas according to claim 1, characterized in that, The ozone gas preparation gas source system includes an air compressor, a dryer, a pressure storage tank, a molecular sieve oxygen generator, and a high-voltage electrolytic ozone system connected in sequence. The main pipeline of the pipeline distribution system is connected to the gas outlet of the high-voltage electrolytic ozone system, and the prepared ozone gas is transported into the modular grain mold digestion device through the pipeline distribution system.

10. A modular system for eliminating grain molds using ozone gas according to claim 1, characterized in that, A bag filter is provided above the grain unloading pit for dust removal of the grain.

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