A continuous hydroponic forage production system and production method

Abstract

This invention discloses a continuous hydroponic forage production system, comprising a plant, a spiral tower, a conveyor belt, a washing machine, a sterilizer, and a darkroom; the method includes: (1) pretreatment; (2) cultivation. Beneficial effects: The production system of this invention has a simple connection structure and is easy to implement; it achieves mechanized forage cultivation, reduces manual operation steps, lowers labor costs, and improves production efficiency; it increases forage production efficiency and effective forage yield.

Description

Technical field:

[0001] The patent of this invention belongs to the technical field of forage production, and specifically relates to a continuous hydroponic forage production system and production method. Background technology:

[0002] With the development of animal husbandry, traditional grasslands and cultivated land in the north and high-altitude and cold regions can hardly meet the demand for forage in animal husbandry. The shortage of forage resources has become an obstacle to the development of animal husbandry in my country. Hydroponic forage is a soilless cultivation technology that does not use soil for planting. The principle is to directly sprinkle clean water or nutrient solution on the forage seeds, so that the seeds can grow rapidly under reasonable temperature and humidity control. Not only can a large amount of forage be harvested in a limited space, but the harvested forage can also be eaten with the roots. It is rich in nutrients and rich in high-energy protein, vitamins and calcium.

[0003] Currently, regarding the cultivation of hydroponic forage, a plant hydroponic production system is disclosed in a patent with application number 202110644632.1, wherein the plant hydroponic production system includes a conveying part and a production tower main body with an outlet and an inlet, and there is a bearing part extending spirally in the vertical direction in the production tower main body, and the bearing part forms a multi-layer structure on the production tower main body; the conveying part is located on the bearing part and is movably arranged along the bearing part, for conveying culture trays, and controlling the speed of the conveying part can make the culture trays on different layers of the production tower main body be in different growth stages; and it can accurately control environmental parameters such as water and carbon dioxide according to different growth stages.

[0004] However, the use of the above-mentioned production towers has the following problems: 1. By setting up two production towers, the floor area is large, which increases the cost of constructing the production towers; 2. The transmission systems of the two production towers are independent, and during operation, it is very easy to be out of sync, which leads to damage to the equipment and reduces the service life of the equipment; 3. At the same time, the forage seeds are directly cultivated in the above-mentioned system and cannot be disinfected, resulting in a low survival rate of the forage seeds under the action of pathogens; 4. When the production tower in the above-mentioned system rotates during operation, the spray irrigation water and nutrient solution flow along the production tower to the factory ground below, and then are directly discharged into the ditch, resulting in a waste of water resources and nutrient solution, and increasing the production cost of hydroponic forage. Summary of the invention:

[0005] The first object of the present invention is to provide a continuous hydroponic forage grass production system with a simple connection structure.

[0006] The second object of the present invention is to provide a continuous hydroponic forage cultivation method which improves forage production efficiency and effective forage yield.

[0007] On the one hand, the technical solution of the present invention discloses a continuous hydroponic forage production system, which includes a factory building, a spiral tower, a conveyor belt, a scrubber, a disinfector and a dark light treatment room; the spiral tower is arranged in the factory building, and the first conveyor belt and the second conveyor belt of the spiral tower are respectively connected to the conveyor belt placed in the factory building to realize a closed loop; the scrubber, the disinfector and the dark light treatment room are arranged in sequence in the direction of the conveyor belt.

[0008] Furthermore, the spiral tower includes a tower support frame, a first conveyor belt is spirally arranged from bottom to top on the outer side of the tower support frame, and a second conveyor belt is spirally arranged from bottom to top on the inner side of the tower support frame, and the first conveyor belt and the second conveyor belt above the tower support frame are in a connected state; a plurality of first rotating shafts are vertically rotatably arranged on the tower support frame on the outer side of the first conveyor belt; a plurality of first gears are coaxially fixed on the first rotating shaft, and the first gears are meshed with the outer edges corresponding to the first conveyor belt; a plurality of second rotating shafts are vertically rotatably arranged on the tower support frame on the outer side of the second conveyor belt; a plurality of second gears are coaxially fixed on the second rotating shaft, and the second gears are meshed with the outer edges corresponding to the second conveyor belt; the first rotating shaft and the second rotating shaft are both drivingly connected to the output shaft of the drive motor.

[0009] Furthermore, the conveyor belt, the first conveyor belt and the second conveyor belt are all chain-type mesh conveyor belts; and a plurality of partitions are arranged on the outer surfaces of the conveyor belt, the first conveyor belt and the second conveyor belt.

[0010] Furthermore, there are two first rotating shafts and two second rotating shafts, which are located in a straight line. A bevel gear commutator is provided at the bottom of each of the first rotating shaft and the second rotating shaft, and the drive motor is connected to the bevel gear commutator through a drive shaft.

[0011] Furthermore, a spray pipe is arranged on the tower body support frame above the first conveyor belt on each layer and the second conveyor belt on each layer, and a plurality of spray heads are arranged on the spray pipe; the water inlet of the spray pipe is connected with the water outlet of the pressure pump, and the pressure pump is connected with the water outlet of the water tank; a blue light strip, a red light strip and a natural light strip are arranged in sequence on the tower body support frame along the running direction of the material.

[0012] Furthermore, the scrubber includes a box body; an inlet and an outlet are respectively provided at both ends of the box body; the conveyor belt passes through the box body from the inlet and the outlet; a plurality of spray pipes are fixedly arranged in sequence on the top of the inner wall of the box body from the inlet to the outlet, a plurality of spray heads are arranged on each of the spray pipes, and the water inlet of the spray pipe is connected with the water outlet of the water tank through a water pump; a first connecting plate is rotatably hinged on the top of the inner wall of the box body between adjacent spray pipes, a plurality of first levers are fixed on the lower side of the first connecting plate, the first levers under adjacent first connecting plates are cross-arranged, and first bristles are fixed on the first levers; a first counterweight is fixed on the first connecting plate; a water collecting trough is arranged in the box body below the conveyor belt.

[0013] Furthermore, the disinfection machine includes a shell; an inlet and an outlet are respectively opened at both ends of the shell; the conveyor belt passes through the shell from the inlet and the outlet of the shell; a plurality of spray pipes are fixedly arranged on the top of the inner wall of the shell in sequence from the inlet to the outlet, and a plurality of spray heads are arranged on each of the spray pipes, and the water inlet of the spray pipe is connected to the liquid outlet of the medicine storage box through a spray pump; a second connecting plate is rotatably hinged at the top of the inner wall of the shell between adjacent spray pipes, and a plurality of second levers are fixed on the lower side of the second connecting plate, and the adjacent first levers are connected to the inner wall of the shell between adjacent spray pipes. The second levers below the two connecting plates are cross-arranged, and second bristles are fixedly arranged on the second levers; a scraper is rotatably hinged on the top of the inner wall of the shell near its outlet; second counterweights are respectively fixed on the second connecting plate and the scraper; a liquid collecting trough is arranged in the shell below the conveyor belt; a liquid collecting box and a medicine storage box are fixed on the side wall of the shell, an overflow port connected to the liquid collecting box is opened above the liquid collecting trough, and a filter is arranged in the overflow port; the liquid outlet of the liquid collecting box is connected to the liquid inlet of the medicine storage box through a pipeline via a delivery pump.

[0014] Furthermore, a water collection channel is opened on the factory land around the factory building, and the factory land inside the water collection channel is in a turtle back shape, gradually sloping from the middle of the factory land to the water collection channel around it; the discharge port of the water collection channel is connected to the liquid inlet of the collection tank.

[0015] Furthermore, the liquid outlets of the water collection trough and the collection tank are both connected to the liquid inlet of the filtering device, the liquid outlet of the filtering device is connected to the liquid inlet of the sterilizing device, and the liquid outlet of the sterilizing device is connected to the liquid inlet of the water storage tank.

[0016] Another aspect of the present invention also discloses a method for cultivating continuous hydroponic forage grass, which comprises the following steps:

[0017] (1) Preliminary treatment: The seedling tray containing the forage grass seeds is placed on the conveyor belt at the front end of the washing machine and passes through the washing machine, disinfection machine and dark light treatment room in sequence as the conveyor belt runs;

[0018] (2) Cultivation: The seedling trays treated in step (1) are moved along the conveyor belt to a second conveyor belt, and are first irradiated by a blue light belt for 6 h / d and 3 d, and then irradiated by a red light belt for 6 h / d and 3 d, and then moved to the first conveyor belt to be irradiated by a natural light belt; spraying is performed during the irradiation process, and finally the finished forage seedling trays are removed from the end of the first conveyor belt, thereby completing the entire production process.

[0019] Furthermore, the total length of the conveyor belt, the first conveyor belt and the second conveyor belt is 350-450m; they are operated once every 10-12h, each operation is 1h, and the operation speed is 27-30m / h.

[0020] Furthermore, the length of the dark light treatment chamber in step (1) is 27-30m.

[0021] Furthermore, in step (2), spraying is performed once every 5-8 minutes, each spraying time is 10-12 seconds, and the flow rate of each spray head is 11-16 ml / s; the culture temperature is 15-23°C.

[0022] Advantages of the present invention:

[0023] 1. The production system of the present invention has a simple connection structure and is easy to implement. The production system fully utilizes the space in the vertical direction through the setting of the spiral tower, and has a high space utilization rate. At the same time, it realizes mechanized cultivation of forage, reduces manual operation steps, reduces labor costs, and improves production efficiency.

[0024] 2. In the present invention, the first conveyor belt and the second conveyor belt are integrated into a spiral tower, which reduces the floor space and thus reduces the cost of building the spiral tower; and only one driving motor is used to drive the first conveyor belt and the second conveyor belt, thereby ensuring the synchronous operation of the first conveyor belt and the second conveyor belt, avoiding damage thereof and increasing their service life;

[0025] 3. The present invention realizes the cleaning and disinfection of seeds by setting a washing machine and a disinfecting machine, and does not need to manually clean and disinfect the seeds, which saves time and labor, improves the efficiency of cleaning and disinfecting seeds, and reduces labor costs; at the same time, it ensures the survival rate of forage seeds during the cultivation process;

[0026] 4. In the present invention, the water and nutrient solution flowing down from the spiral tower flow along the plant site to the water collection channels around it, and are finally collected in the collection tank instead of being discharged into the ditch, thereby avoiding the waste of water resources and nutrient solution; the wastewater and nutrient solution collected in the collection tank and the water after seed washing in the water collection tank are treated and then reused in the spray irrigation of the hydroponic forage on the spiral tower and the seed washing in the washing machine, thereby realizing their recycling and saving the production cost of the hydroponic forage.

[0027] 5. The forage cultivation method of the present invention realizes the accelerated growth process of forage, allowing the forage to complete growth within 7 days; thereby improving production efficiency and the effective yield of forage. Description of the drawings:

[0028] Figure 1 This is a schematic diagram of the overall structure of the system according to Embodiment 1 of the present invention.

[0029] Figure 2 This is a schematic diagram of the system structure of Example 2 of the present invention.

[0030] Figure 3 This is a schematic diagram of the spiral tower structure of Example 1 of the present invention.

[0031] Figure 4 This is a schematic diagram of the structure of a scrubber according to Embodiment 1 of the present invention.

[0032] Figure 5 This is a schematic diagram of the structure of the disinfection machine according to Example 1 of the present invention.

[0033] Figure 6 for Figure 5 Rear view of.

[0034] Factory building 1, factory site 101, spiral tower 2, tower support frame 201, first conveyor belt 202, second conveyor belt 203, first rotating shaft 204, first gear 205, second rotating shaft 206, second gear 207, drive motor 208, bevel gear commutator 209, conveyor belt 3, scrubber 4, box body 401, first connecting plate 402, first lever 403, first bristles 404, first counterweight 405, water collecting trough 406, disinfector 5, shell 501, second connecting plate 502, second lever 503, second bristles 504, second counterweight 505, scraper 506, liquid collecting trough 507, liquid collecting box 508, medicine storage box 509, filter screen 510, dark light treatment room 6, partition 7, water collecting channel 8, collection tank 9, filtration device 10, sterilization device 11, water storage tank 12. Specific implementation method:

[0035] The present invention will be further described in detail below through embodiments in conjunction with the accompanying drawings.

[0036] Example 1: Figure 1-6 As shown, a continuous hydroponic forage grass production system comprises a plant 1, a spiral tower 2, a conveyor belt 3, a scrubber 4, a disinfector 5 and a dark light treatment chamber 6; a spiral tower 2 is arranged in the plant 1, and a first conveyor belt 202 and a second conveyor belt 203 of the spiral tower 2 are respectively connected to the conveyor belt 3 arranged in the plant 1 to realize a closed loop; a scrubber 4, a disinfector 5 and a dark light treatment chamber 6 are sequentially arranged in the running direction of the conveyor belt 3; by arranging the scrubber 4 and the disinfector 5, the seeds are cleaned and disinfected, and there is no need for manual cleaning and disinfection of the seeds, which saves time and labor, improves the efficiency of cleaning and disinfecting the seeds, and reduces labor costs; at the same time, the survival rate of the forage grass seeds during the cultivation process is guaranteed.

[0037] The spiral tower 2 includes a tower support frame 201, on the outer side of the tower support frame 201, a first conveyor belt 202 is spirally arranged from bottom to top, on the inner side of the tower support frame 201, a second conveyor belt 203 is spirally arranged from bottom to top, and the first conveyor belt 202 and the second conveyor belt 203 above the tower support frame 201 are connected; a plurality of first rotating shafts 204 are vertically rotatably arranged on the tower support frame 201 outside the first conveyor belt 202; a plurality of first gears 205 are coaxially fixed on the first rotating shaft 204, and the first gear 205 is meshed with the outer edge corresponding to the first conveyor belt 202; a plurality of second rotating shafts 206 are vertically rotatably arranged on the tower support frame 201 outside the second conveyor belt 203; a plurality of second gears 207 are coaxially fixed on the second rotating shaft 206, and the second gear 207 is meshed with the second transmission The corresponding outer edges of the conveyor belt 203 are meshed with each other; the first rotating shaft 204 and the second rotating shaft 206 are both connected to the output shaft of the driving motor 208; there are two first rotating shafts 204 and the second rotating shaft 206, and they are located in a straight line. A bevel gear commutator 209 is respectively provided at the bottom of each first rotating shaft 204 and the second rotating shaft 206, and the driving motor 208 is connected to the bevel gear commutator 209 through the driving shaft; the first conveyor belt 202 and the second conveyor belt 203 are assembled in a spiral tower 2, which reduces the floor space and thus reduces the cost of building the spiral tower 2; and only one driving motor 208 is used to drive the first conveyor belt 202 and the second conveyor belt 203, thereby ensuring the synchronous operation of the first conveyor belt 202 and the second conveyor belt 203, avoiding damage thereof and increasing their service life.

[0038] The conveyor belt 3 , the first conveyor belt 202 and the second conveyor belt 203 are all chain-type mesh conveyor belts; a plurality of partitions 7 are arranged on the outer surfaces of the conveyor belt 3 , the first conveyor belt 202 and the second conveyor belt 203 .

[0039] A spray pipe is arranged on the tower body support frame 201 above each layer of the first conveyor belt 202 and each layer of the second conveyor belt 203, and a plurality of spray heads are arranged on the spray pipe; the water inlet of the spray pipe is connected with the water outlet of the pressure pump, and the pressure pump is connected with the water outlet of the water storage tank 12; a blue light strip, a red light strip and a natural light strip are arranged in sequence on the tower body support frame 201 along the running direction of the material.

[0040] The scrubber 4 comprises a box body 401; an inlet and an outlet are respectively provided at both ends of the box body 401; the conveyor belt 3 passes through the box body 401 from the inlet and the outlet; a plurality of spray pipes are fixedly arranged in sequence from the inlet to the outlet on the top of the inner wall of the box body 401, and a plurality of spray heads are arranged on each spray pipe, and the water inlet of the spray pipe is connected with the water outlet of the water storage tank 12 through a water pump; a first connecting plate 402 is rotatably hinged on the top of the inner wall of the box body 401 between adjacent spray pipes, and a plurality of first levers 403 are fixed on the lower side of the first connecting plate 402, and the first levers 403 under adjacent first connecting plates 402 are cross-arranged, and a first brush 404 is fixed on the first lever 403; a first counterweight 405 is fixed on the first connecting plate 402; a water collecting tank 406 is arranged in the box body 401 below the conveyor belt 3.

[0041] The disinfection machine 5 includes a housing 501; an inlet and an outlet are respectively provided at both ends of the housing 501; the conveyor belt 3 passes through the housing 501 from the inlet and the outlet; a plurality of spray pipes are fixedly arranged on the top of the inner wall of the housing 501 from the inlet to the outlet, and a plurality of spray heads are arranged on each spray pipe, and the water inlet of the spray pipe is connected to the liquid outlet of the medicine storage box 509 through a spray pump; a second connecting plate 502 is rotatably hinged at the top of the inner wall of the housing 501 between adjacent spray pipes, and a plurality of second levers 503 are fixed at the bottom of the second connecting plate 502, and the second levers 503 under the adjacent second connecting plates 502 are connected to the second connecting plates 502. 03 are cross-arranged, and a second brush 504 is fixedly arranged on the second lever 503; a scraper 506 is rotatably hinged on the top of the inner wall of the shell 501 near its outlet; a second counterweight 505 is respectively fixed on the second connecting plate 502 and the scraper 506; a liquid collecting tank 507 is arranged in the shell 501 below the conveyor belt 3; a liquid collecting box 508 and a medicine storage box 509 are fixed on the side wall of the shell 501, and an overflow port connected to the liquid collecting box 508 is opened above the liquid collecting tank 507, and a filter screen 510 is arranged in the overflow port; the liquid outlet of the liquid collecting box 508 is connected to the liquid inlet of the medicine storage box 509 through a pipeline through a delivery pump.

[0042] The production system of the present invention has a simple connection structure and is easy to implement. The production system fully utilizes the space in the vertical direction through the setting of the spiral tower 2, has a high space utilization rate, and realizes mechanized forage cultivation, reduces manual operation steps, reduces labor costs, and improves production efficiency.

[0043] Example 2: Figure 2 As shown, it is the same as Example 1 as a whole, except that a water collection channel 8 is opened on the factory land 101 around the factory building 1, and the factory land 101 inside the water collection channel 8 is in a turtle back shape, gradually sloping from the middle of the factory land 101 to the water collection channel 8 around it; the discharge port of the water collection channel 8 is connected to the liquid inlet of the collection tank 9.

[0044] The liquid outlets of the water collecting tank 406 and the collecting tank 9 are both connected to the liquid inlet of the filtering device 10, the liquid outlet of the filtering device 10 is connected to the liquid inlet of the sterilizing device 11, and the liquid outlet of the sterilizing device 11 is connected to the liquid inlet of the water storage tank 12; wherein the filtering device 10 and the sterilizing device 11 are both purchased existing equipment.

[0045] The water and nutrient solution flowing down from the spiral tower 2 flow along the plant site 101 to the water collection channel 8 around it, and are finally collected in the collection tank 9 instead of being discharged into the ditch, thereby avoiding the waste of water resources and nutrient solution; the waste water and nutrient solution collected in the collection tank 9 and the water after seed washing in the water collection tank 406 are treated and then reused in the spray irrigation of hydroponic forage on the spiral tower 2 and the seed washing in the washing machine 4, thereby realizing their recycling and saving the production cost of hydroponic forage.

[0046] Example 3: A method for cultivating forage grass using the system of Example 1, comprising the following steps:

[0047] (1) Preliminary treatment: The seedling tray containing the forage grass seeds is placed on the conveyor belt 3 at the front end of the washer 4. As the conveyor belt 3 runs, it passes through the washer 4, the disinfector 5 and the dark light treatment room 6 in sequence; the length of the dark light treatment room 6 is 27-30m.

[0048] (2) Cultivation: The seedling trays treated in step (1) are moved along the conveyor belt 3 to the second conveyor belt 203, and are first irradiated by a blue light strip for 6 h / d and 3 d, and then by a red light strip for 6 h / d and 3 d, and then moved to the first conveyor belt 202 and irradiated by a natural light strip. During the irradiation process, they are sprayed once every 5-8 min, and each spraying time is 10-12 s. The flow rate of each spray head is 11-16 ml / s; the cultivation temperature is 15-23 ° C; finally, the finished forage seedling trays are removed from the end of the first conveyor belt 202, thereby completing the entire production process.

[0049] The total length of the conveyor belt 3, the first conveyor belt 202 and the second conveyor belt 203 is 350-450m; they are operated once every 10-12h, each operation is 1h, and the operation speed is 27-30m / h.

[0050] The forage cultivation method of the present invention realizes the accelerated growth process of forage, so that the forage can complete its growth within 7 days, thereby improving the production efficiency and the effective yield of forage.

[0051] The above are preferred embodiments of the present invention. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A continuous hydroponic forage grass production system, characterized in that: It includes a factory building, a spiral tower, a conveyor belt, a scrubber, a disinfector and a dark light treatment room; the spiral tower is arranged in the factory building, and the first conveyor belt and the second conveyor belt of the spiral tower are respectively connected to the conveyor belt arranged in the factory building to realize a closed loop; the scrubber, the disinfector and the dark light treatment room are arranged in sequence in the direction of the running of the conveyor belt; The spiral tower comprises a tower support frame, a first conveyor belt is spirally arranged from bottom to top on the outer side of the tower support frame, a second conveyor belt is spirally arranged from bottom to top on the inner side of the tower support frame, and the first conveyor belt above the tower support frame is in a connected state; a plurality of first rotating shafts are vertically rotatably arranged on the tower support frame on the outer side of the first conveyor belt; a plurality of first gears are coaxially fixed on the first rotating shaft, and the first gears are meshed with the outer edges corresponding to the first conveyor belt; a plurality of second rotating shafts are vertically rotatably arranged on the tower support frame on the outer side of the second conveyor belt; a plurality of second gears are coaxially fixed on the second rotating shaft, and the second gears are meshed with the outer edges corresponding to the second conveyor belt; the first rotating shaft and the second rotating shaft are both drivingly connected with the output shaft of a driving motor; The method for continuously cultivating hydroponic forage grass using the production system comprises the following steps: (1) Preliminary treatment: The seedling tray containing the forage grass seeds is placed on the conveyor belt at the front end of the washing machine and passes through the washing machine, disinfection machine and dark light treatment room in sequence as the conveyor belt runs; (2) Cultivation: The seedling trays treated in step (1) are moved along the conveyor belt to a second conveyor belt, and are first irradiated by a blue light belt for 6 h / d and 3 d, and then irradiated by a red light belt for 6 h / d and 3 d, and then moved to the first conveyor belt to be irradiated by a natural light belt; spraying is performed during the irradiation process, and finally the finished forage seedling trays are removed from the end of the first conveyor belt, thereby completing the entire production process.

2. A continuous hydroponic forage grass production system according to claim 1, characterized in that: The conveyor belt, the first conveyor belt and the second conveyor belt are all chain-type mesh conveyor belts; and a plurality of partitions are arranged on the outer surfaces of the conveyor belt, the first conveyor belt and the second conveyor belt.

3. The continuous hydroponic forage grass production system according to claim 1, characterized in that: There are two first rotating shafts and two second rotating shafts, which are located in a straight line. A bevel gear commutator is provided at the bottom of each of the first rotating shaft and the second rotating shaft, and the drive motor is connected to the bevel gear commutator through a drive shaft.

4. The continuous hydroponic forage grass production system according to claim 1, characterized in that: A spray pipe is arranged on the tower body support frame above the first conveyor belt on each layer and the second conveyor belt on each layer, and a plurality of spray heads are arranged on the spray pipe; the water inlet of the spray pipe is connected with the water outlet of the pressure pump, and the pressure pump is connected with the water outlet of the water tank; a blue light strip, a red light strip and a natural light strip are arranged in sequence on the tower body support frame along the running direction of the material.

5. The continuous hydroponic forage grass production system according to claim 2, characterized in that: The scrubber comprises a box body; an inlet and an outlet are respectively provided at both ends of the box body; the conveyor belt passes through the box body from the inlet and the outlet; a plurality of spray pipes are fixedly arranged on the top of the inner wall of the box body in sequence from the inlet to the outlet, a plurality of spray heads are arranged on each of the spray pipes, and the water inlet of the spray pipe is connected with the water outlet of the water storage tank through a water pump; a first connecting plate is rotatably hinged on the top of the inner wall of the box body between adjacent spray pipes, a plurality of first levers are fixed on the lower side of the first connecting plate, the first levers under adjacent first connecting plates are cross-arranged, and first bristles are fixed on the first levers; a first counterweight is fixed on the first connecting plate; a water collecting tank is arranged in the box body below the conveyor belt.

6. The continuous hydroponic forage grass production system according to claim 2, characterized in that: The sterilizer comprises a shell; an inlet and an outlet are respectively provided at both ends of the shell; the conveyor belt passes through the shell from the inlet and the outlet of the shell; a plurality of spray pipes are fixedly arranged on the top of the inner wall of the shell in sequence from the inlet to the outlet, a plurality of spray heads are arranged on each of the spray pipes, and the water inlet of the spray pipe is connected with the liquid outlet of the medicine storage box through a spray pump; a second connecting plate is rotatably hinged at the top of the inner wall of the shell between adjacent spray pipes, a plurality of second levers are fixed on the lower side of the second connecting plate, and adjacent second connecting pipes are connected to each other through a plurality of second levers. The second lever below the plate is cross-arranged, and a second brush is fixed on the second lever; a scraper is rotatably hinged on the top of the inner wall of the shell near its outlet; a second counterweight is fixed on the second connecting plate and the scraper respectively; a liquid collecting trough is arranged in the shell below the conveyor belt; a liquid collecting box and a medicine storage box are fixed on the side wall of the shell, an overflow port connected to the liquid collecting box is opened above the liquid collecting trough, and a filter is arranged in the overflow port; the liquid outlet of the liquid collecting box is connected to the liquid inlet of the medicine storage box through a pipeline via a delivery pump.

7. The continuous hydroponic forage grass production system according to claim 1, characterized in that: A water collection channel is opened on the factory land around the factory building. The factory land inside the water collection channel is in a turtle back shape, gradually sloping from the middle of the factory land to the water collection channel around it; the discharge port of the water collection channel is connected with the liquid inlet of the collection tank.

8. A continuous hydroponic forage production system according to any one of claims 1 to 7, characterized in that: The liquid outlets of the water collecting tank and the collecting tank are both connected to the liquid inlet of the filtering device, the liquid outlet of the filtering device is connected to the liquid inlet of the sterilizing device, and the liquid outlet of the sterilizing device is connected to the liquid inlet of the water storage tank.

9. The continuous hydroponic forage grass production system according to claim 1, characterized in that: The total length of the conveyor belt, the first conveyor belt and the second conveyor belt is 350-450m; they are operated once every 10-12h, each operation is 1h, and the operation speed is 27-30m / h.

10. The continuous hydroponic forage grass production system according to claim 9, characterized in that: The length of the dark light treatment chamber in step (1) is 27-30m.

11. The continuous hydroponic forage grass production system according to claim 1, characterized in that: In step (2), spray once every 5-8 minutes, each spraying time is 10-12 seconds, and the flow rate of each spray head is 11-16 ml / s; the culture temperature is 15-23°C.

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