Production method and equipment of fermented feed for crayfish

Abstract

The invention provides a production method and equipment of a crayfish fermented feed, the equipment comprises a screening and drying box, a crushing box is fixed at the top of the screening and drying box, two crushing rollers are symmetrically and rotatably mounted in the crushing box through bearings, and a moving frame is fixed in the screening and drying box; the two sides, the upper end and the lower end of the movable frame are semicircular and linear respectively, the tops of the movable frame and the screening and drying box are open, the screening and drying box is located in the movable frame and is provided with a transfer table, and the transfer table comprises a driving shaft. And the feed is spread at the bottom of the moving frame through the push plate, and is dried and dewatered in cooperation with the electric heating rod, so that the transfer time is saved, the subsequent processing efficiency is improved, the coarse screening groove of the separation belt and the fine screening plate at the bottom of the moving frame can be cleaned in time, and blockage is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of feed production, and in particular to a production method and equipment for crayfish fermented feed. Background Art

[0002] Fermented feed uses microorganisms and complex enzymes as biological feed fermentation strains to convert feed raw materials into microbial bacterial protein, bioactive small peptide amino acids, microbial active probiotics, and complex enzyme preparations. This product can not only make up for the amino acids that are easily lacking in conventional feeds, but also can quickly convert the nutrients of other roughage raw materials to enhance digestion, absorption and utilization. At present, pellet feed is mainly used to feed crayfish in production, which leads to poor disease resistance of crayfish and the need to supplement fish medicine to prevent disease. At the same time, the quality is difficult to improve, resulting in the phenomenon that the breeding cost is not proportional to the output value.

[0003] When preparing fermented feed for crayfish, it involves mixing a variety of raw materials after crushing. In order to ensure its quality, the raw materials need to be cleaned and dried before crushing, and then multi-stage screening is carried out after crushing to screen out particles of uniform size. The subsequent preparation process involves multiple processing steps, and the feed needs to be transported and screened during the process, resulting in low overall efficiency. In addition, blockage problems often occur during multi-stage screening, resulting in poor screening effect. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a method and equipment for producing fermented crayfish feed to solve the problems raised in the above-mentioned background technology. The present invention has a novel structure. The crushed feed is screened inside the screening and drying box to remove impurities and leave particles of uniform size. The feed is spread on the bottom of the movable frame by a push plate and dried and dehydrated with an electric heating rod, thus saving transportation time and improving subsequent processing efficiency. The coarse screen slot of the dividing zone and the fine screen plate at the bottom of the movable frame can also be cleaned in time to avoid blockage.

[0005] In order to achieve the above object, the present invention is implemented by the following technical scheme: a method for producing fermented crayfish feed, the production method comprising the following steps:

[0006] (1) Raw material integration: prepare tofu dregs, soybean meal, rice bran meal, rapeseed meal, wheat bran, finished fish meal, corn or broad bean granules and betaine in appropriate amounts, wash the raw materials to remove surface dirt and impurities, mix them in a mixing box, and obtain mixed feed;

[0007] (2) Crushing and screening: The mixed feed is sent to the crushing box and crushed into particles of uniform size and sent to the screening and drying box. The driving shaft drives the dividing belt to move, and the coarse screening slots on the dividing belt are used to screen the larger impurities in the particles. The screened impurities fall into the collection frame, and the feed moves in the moving frame and enters the fine screen plate for secondary screening and impurity removal of fine particles;

[0008] (3) Drying feed: The feed that falls on the bottom of the moving frame moves with the dividing belt, and the push plate on its surface evenly spreads the accumulated feed on the bottom of the moving frame. A plurality of electric heating rods are arranged at the bottom of the collecting frame, and the spread feed is dried by the electric heating rods to remove residual moisture;

[0009] (4) Feed delivery: After the connecting plate on the moving frame is locked and connected with the push plate, the feed at the bottom of the moving frame is pushed out from one side of the outlet end and sent into the fermentation box through the discharge channel. Beer yeast dry powder and brown sugar, plant lactobacillus dry powder, plant lactobacillus activated by Bacillus subtilis dry powder and Bacillus subtilis activated fermentation liquid are added into the fermentation box and stirred evenly;

[0010] (5) Storage and fermentation: The mixed feed prepared in step (3) is placed in a feed fermentation breathing bag and placed in a cool and ventilated place at a temperature of 25 to 35° C. for fermentation for 7 to 10 days.

[0011] A production device for fermented crayfish feed, comprising a screening and drying box, a crushing box is fixed on the top of the screening and drying box, and two crushing rollers are symmetrically installed in the crushing box through bearings, a moving frame is fixed in the screening and drying box, the two sides and the upper and lower ends of the moving frame are semicircular and linear respectively, the moving frame and the top of the screening and drying box are both open, the screening and drying box is located inside the moving frame and a transfer platform is installed, and the transfer platform includes a driving shaft, two motor-driven driving shafts are symmetrically installed on the inner wall of the screening and drying box, and the surfaces of the two driving shafts are sleeved with dividing strips, the surfaces of the dividing strips are equidistantly provided with coarse screening grooves, and the surface of the dividing strips is provided with coarse screening grooves. Push plates are equidistantly installed on the upper part, and the outermost end of the push plate is a certain distance away from the inner wall of the moving frame. A fine screen plate is arranged at the bottom of the moving frame, and a scraper is arranged inside the fine screen plate, and the scraper is connected to the side of the dividing belt by transmission. The screening and drying box is located between the two driving shafts and the dividing belt and a collecting frame is fixed thereon. The upper end of the collecting frame is open, and the collecting frame and the screening and drying box are both provided with outlets on the same side of the bottom of the moving frame. Baffles are installed at the positions of the two outlets of the screening and drying box corresponding to the two outlets, and electric heating rods are fixedly installed at the bottom of the collecting frame at equal distances, a delivery outlet is provided on the semicircular side surface of the moving frame, and a discharge channel is installed at the position of the screening and drying box corresponding to the delivery outlet.

[0012] Furthermore, gears are rotatably installed on the outer side of the crushing box corresponding to the positions of the two crushing rollers through bearings, and the two gears are meshed and connected. A driving motor is fixed to the position of the gear on one side of the crushing box, and the output end of the driving motor is fixedly connected to the gear on one side. An inclined plate is fixed to the top side of the two crushing rollers of the crushing box.

[0013] Furthermore, a mounting frame is fixed at the bottom of the collecting frame, and the electric heating rod is fixed at the bottom of the mounting frame, and the mounting frame slides out of the coarse screening slot of the dividing zone.

[0014] Furthermore, a straight notch is provided in the screening and drying box at a position corresponding to the scraper on one side of the baffle, and a movable notch is provided in the moving path of the screening and drying box corresponding to the dividing zone, an extension plate is slidably connected in the straight notch, and the extension plate is fixedly connected to the scraper, an outlet plate is slidably connected in the movable notch, and the outlet plate is rotatably connected to the side of the dividing zone through a bearing.

[0015] Furthermore, an insertion rod is fixed on the top of the extension plate, and the outlet plate is slidably sleeved on the surface of the insertion rod, the upper end of the insertion rod is sleeved with a spring, and the bottom of the spring is fixedly connected to the outlet plate.

[0016] Furthermore, vertical columns are provided on both sides of the push plate, and vertical grooves are opened on the inner surfaces of the vertical columns. One end of the vertical column is fixedly connected to the side of the dividing strip. Weight blocks are fixed at positions corresponding to the vertical grooves on both sides of the push plate, and the weight blocks slide along the inside of the vertical grooves.

[0017] Furthermore, moving grooves are provided on the inner walls on both sides of the moving frame, and the moving grooves have the same moving trajectory as the dividing strip. A connecting plate is provided at the interval between the push plate and the inner wall of the moving frame, and sliders are fixed at both ends of the connecting plate, and the sliders slide along the moving grooves.

[0018] Furthermore, a plurality of second electric push rods are fixed inside one side of the connecting plate facing the push plate, slots are provided on the push plate at positions corresponding to the second electric push rods, and the extended ends of the second electric push rods can be slidably inserted into the slots.

[0019] Furthermore, a first electric push rod is fixed on the outer wall of the screening and drying box away from the baffle, a delivery plate is provided at the bottom of the collecting frame and the moving frame, and the extended end of the first electric push rod is fixedly connected to the delivery plate.

[0020] Beneficial effects of the present invention:

[0021] 1. In the present invention, there is a gap between the push plate and the moving frame. Therefore, under normal conditions, the push plate will not contact the connecting plate as the dividing belt moves. When the material at the bottom of the moving frame needs to be delivered, the push plate is transferred to be parallel to the connecting plate, and the extended end of the second electric push rod inside the connecting plate is inserted into the slot of the push plate to realize the plug-in connection between the push plate and the connecting plate. Then, when the push plate continues to move with the dividing belt, at this time, the connecting plate and the push plate are merged into a complete plate, and all the feed at the bottom of the moving frame is pushed out from one side of the delivery outlet. During the process, the connecting plate slides along the moving groove through the sliding frame. Because the trajectory of the moving groove is the same as that of the dividing belt, the connecting plate always remains connected to the push plate, and is contacted and locked after one cycle to carry out the next group of drying and screening. When the push plate moves to the top, the second electric push rod can be extended to meet the push plate when it descends, and the connecting plate still remains plugged in with the push plate.

[0022] 2. The present invention adopts a sliding connection between the push plate and the vertical columns on both sides. When the push plate is located at the top of the dividing zone, the push plate slides to the bottom and contacts the dividing zone under the action of the gravity of the weight block. At this time, the material on the surface of the dividing zone can be pushed and simply cleaned. When the push plate moves to the bottom of the dividing zone, the push plate moves downward along the vertical groove. At this time, the distance between the push plate and the dividing zone can meet the position of passing through the electric heating rod, and no movement interference will occur. At the same time, the distance between the bottom of the push plate and the moving frame can meet the requirement of spreading the feed evenly.

[0023] 3. The scraper of the present invention is connected to the outlet plate through the straight gap of the extension plate and the movable gap of the dividing belt. The movable gap is also the same as the moving trajectory of the dividing belt. Then, when the dividing belt moves with the driving shaft, the outlet plate drives the extension plate to move. At this time, the outlet plate also slides up and down along the insertion rod to maintain the connection relationship with the extension plate. With the circular rotation of the dividing belt, the scraper is driven to move along the screen groove of the fine screen plate at the bottom of the moving frame to clean up the blocked impurities.

[0024] 4. When the present invention moves through the dividing belt, the coarse screen slot will pass through the mounting frame for cleaning to prevent clogging, and the feed spread out at the bottom of the moving frame can be dried by the electric heating rod.

[0025] 5. Compared with the prior art, the present invention screens the crushed feed inside the screening and drying box to remove impurities and leave particles of uniform size. The feed is spread on the bottom of the mobile frame by a push plate and dried and dehydrated with an electric heating rod, thereby saving transportation time and improving subsequent processing efficiency. The coarse screen slot of the dividing zone and the fine screen plate at the bottom of the mobile frame can also be cleaned in time to avoid blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall process of a method for producing fermented crayfish feed according to the present invention;

[0027] Figure 2 This is a schematic diagram of the overall structure of a production device for fermented crayfish feed according to the present invention;

[0028] Figure 3 This is a schematic diagram of the top structure of a crushing box of a production device for fermented crayfish feed according to the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of a transfer platform of a production device for fermented crayfish feed according to the present invention;

[0030] Figure 5 This is a schematic diagram of the connection between the scraper frame and the dividing belt of a production device for fermented crayfish feed according to the present invention;

[0031] Figure 6 This is a schematic diagram of the bottom installation of a collection frame of a production device for fermented crayfish feed according to the present invention;

[0032] Figure 7 This is a schematic diagram of the outer surface of a screening and drying box of a production device for fermented crayfish feed according to the present invention;

[0033] Figure 8 This is a schematic diagram of the connection between the push plate and the vertical column of a production device for crayfish fermented feed according to the present invention;

[0034] Fig. 9 This is a schematic diagram of the connection between a connecting plate and a pushing plate of a production device for fermented crayfish feed of the present invention.

[0035] In the figure: 1. screening and drying box; 11. discharging channel; 12. first electric push rod; 13. moving gap; 14. straight gap; 15. baffle; 2. crushing box; 21. inclined plate; 22. driving motor; 23. crushing roller; 24. gear; 3. transfer table; 31. driving shaft; 32. dividing belt; 33. push plate; 331. vertical column; 332. vertical slot; 333. weight block; 4. moving frame; 41. delivery outlet; 42. fine screen plate; 43. scraper; 44. extension plate; 45. plug rod; 46. moving slot; 47. connecting plate; 48. slider; 49. second electric push rod; 410. slot; 411. pass-through plate; 412. spring; 5. collecting frame; 51. delivery plate; 52. electric heating rod; 53. mounting frame. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0037] See also Figures 1 to 9 The present invention provides a technical solution: a method for producing fermented crayfish feed, the production method comprising the following steps:

[0038] (1) Raw material integration: prepare tofu dregs, soybean meal, rice bran meal, rapeseed meal, wheat bran, finished fish meal, corn or broad bean granules and betaine in appropriate amounts, wash the raw materials to remove surface dirt and impurities, mix them evenly in a mixing box to obtain mixed feed;

[0039] (2) Crushing and screening: The mixed feed is sent to the crushing box and crushed into particles of uniform size and sent to the screening and drying box. The driving shaft drives the dividing belt to move, and the coarse screening slots on the dividing belt are used to screen the larger impurities in the particles. The screened impurities fall into the collection frame, and the feed moves in the moving frame and enters the fine screen plate for secondary screening and impurity removal of fine particles;

[0040] (3) Drying feed: The feed that falls on the bottom of the moving frame moves with the dividing belt, and the push plate on its surface evenly spreads the accumulated feed on the bottom of the moving frame. A plurality of electric heating rods are arranged at the bottom of the collecting frame, and the spread feed is dried by the electric heating rods to remove residual moisture;

[0041] (4) Feed delivery: After the connecting plate on the moving frame is locked and connected with the push plate, the feed at the bottom of the moving frame is pushed out from one side of the outlet end and sent into the fermentation box through the discharge channel. Beer yeast dry powder and brown sugar, plant lactobacillus dry powder, plant lactobacillus activated by Bacillus subtilis dry powder and Bacillus subtilis activated fermentation liquid are added into the fermentation box and stirred evenly;

[0042] (5) Storage and fermentation: The mixed feed prepared in step (3) is placed in a feed fermentation breathing bag and placed in a cool and ventilated place at a temperature of 25 to 35° C. for fermentation for 7 to 10 days.

[0043] A production device for fermented crayfish feed, comprising a screening and drying box 1, a crushing box 2 is fixed on the top of the screening and drying box 1, and two crushing rollers 23 are symmetrically rotatably installed inside the crushing box 2 through bearings, a moving frame 4 is fixed inside the screening and drying box 1, and the two sides and the upper and lower ends of the moving frame 4 are semicircular and linear respectively, and the tops of the moving frame 4 and the screening and drying box 1 are both open, and the screening and drying box 1 is provided with a transfer platform 3 installed inside the moving frame 4, and the transfer platform 3 includes a driving shaft 31, and two motor-driven driving shafts 31 are symmetrically rotatably installed on the inner wall of the screening and drying box 1, and the surfaces of the two driving shafts 31 are sleeved with dividing strips 32, and the surfaces of the dividing strips 32 are equidistantly provided with coarse screening grooves, and push plates 33 are equidistantly installed on the surfaces of the dividing strips 32, and the outermost end of the push plate 33 is a certain distance from the inner wall of the moving frame 4, and a fine screen plate 42 is provided at the bottom of the moving frame 4, and a scraper 43 is provided inside the fine screen plate 42, and the scraper 43 is connected to the side of the dividing strip 32 by transmission, and the screening and drying box 1 A collecting frame 5 is fixed between the two driving shafts 31 and the dividing strip 32. The upper end of the collecting frame 5 is open, and the collecting frame 5 and the screening and drying box 1 are both provided with outlets on the same side of the bottom of the moving frame 4. The screening and drying box 1 is provided with a baffle 15 at positions corresponding to the two outlets. An electric heating rod 52 is fixedly installed at the bottom of the collecting frame 5 at equal distances. A delivery outlet 41 is provided on the surface of one side of the semicircular shape of the moving frame 4. A discharge channel 11 is provided at the position of the screening and drying box 1 corresponding to the delivery outlet 41. When the device is used, the mixed The mixed feed is fed into the crushing box 2, and the crushed particles fall onto the surface of the dividing belt 32 of the delivery platform, are processed and filtered through the coarse screen groove, and then fall onto the fine screen plate 42 at the bottom of the moving tube for secondary filtration, and particles of uniform size are screened out. Under the push of the push plate 33, they are flatly spread out at the bottom of the moving frame 4 for drying. The spread thickness is based on the distance between the push plate 33 and the moving frame 4, and the excess is pushed forward. After the drying is completed, the feed is delivered from the delivery port 41 of the moving frame 4 and enters the next process through the discharge channel 11.

[0044] In this embodiment, a gear 24 is rotatably installed on the outer side of the crushing box 2 corresponding to the position of the two crushing rollers 23 through a bearing, and the two gears 24 are meshed and connected. A driving motor 22 is fixed to the position of the gear 24 on one side of the crushing box 2, and the output end of the driving motor 22 is fixedly connected to the gear 24 on one side. An inclined plate 21 is fixed to the top side of the two crushing rollers 23 of the crushing box 2. The driving motor 22 drives the gear 24 on one side to rotate, and the two gears 24 mesh to drive the two crushing rollers 23 to rotate synchronously in opposite directions to crush the mixed feed.

[0045] In this embodiment, a mounting frame 53 is fixed at the bottom of the collecting frame 5, and an electric heating rod 52 is fixed at the bottom of the mounting frame 53. The mounting frame 53 slides out of the coarse screening slot of the dividing belt 32. When the dividing belt 32 moves, the coarse screening slot will pass through the mounting frame 53 for cleaning to prevent blockage. The feed spread at the bottom of the moving frame 4 is dried by the electric heating rod 52.

[0046] In this embodiment, the screening and drying box 1 is provided with a straight notch 14 at a position corresponding to the scraper 43 on one side of the baffle 15, and a moving notch 13 is provided at the moving path of the screening and drying box 1 corresponding to the dividing strip 32, an extension plate 44 is slidably connected in the straight notch 14, and the extension plate 44 is fixedly connected to the scraper 43, a pass-through plate 411 is slidably connected in the moving notch 13, and the pass-through plate 411 is rotatably connected to the side of the dividing strip 32 through a bearing, a plug rod 45 is fixed to the top of the extension plate 44, and the pass-through plate 411 is slidably sleeved on the surface of the plug rod 45, and a spring is sleeved on the upper end of the plug rod 45 412, and the bottom of the spring 412 is fixedly connected to the outlet plate 411, the scraper 43 passes through the extension plate 44 to pass through the straight gap 14 and is connected to the outlet plate 411 through the movable gap 13 of the dividing strip 32, and the movable gap 13 is also the same as the moving trajectory of the dividing strip 32, and then when the dividing strip 32 moves with the driving shaft 31, the outlet plate 411 drives the extension plate 44 to move. At this time, the outlet plate 411 also slides up and down along the insertion rod 45 to maintain the connection relationship with the extension plate 44. With the circular rotation of the dividing strip 32, the scraper 43 is driven to move along the screen groove of the fine screen plate 42 at the bottom of the moving frame 4 to clean up the blocked impurities.

[0047] The cam 332 is provided with a plurality of cams 331 on the top of the push plate 33, and the cam 332 is provided with a plurality of cams 331 on the top of the push plate 33.

[0048] In this embodiment, moving grooves 46 are provided on the inner walls on both sides of the moving frame 4, and the moving grooves 46 have the same moving trajectory as the dividing strip 32. A connecting plate 47 is provided at the interval between the push plate 33 and the inner wall of the moving frame 4, and sliders 48 are fixed at both ends of the connecting plate 47. The sliders 48 slide along the moving grooves 46. A plurality of second electric push rods 49 are fixed inside the connecting plate 47 facing the push plate 33. A slot 410 is provided at the position of the push plate 33 corresponding to the second electric push rod 49, and the extended end of the second electric push rod 49 can be slidably inserted into the slot 410. Because there is a gap between the push plate 33 and the moving frame 4, the push plate 33 will not contact the connecting plate 47 with the movement of the dividing strip 32 under normal conditions. When it is necessary to deliver the material at the bottom of the moving frame 4, the push plate 33 is transferred to the connecting plate 47. After the connecting plates 47 are parallel, the extended end of the second electric push rod 49 inside the connecting plate 47 is inserted into the slot 410 of the push plate 33, so that the push plate 33 is plugged into the connecting plate 47. Then, when the push plate 33 continues to move with the dividing strip 32, at this time, the connecting plate 47 and the push plate 33 are merged into a complete plate, and all the feed at the bottom of the moving frame 4 is pushed out from the side of the delivery port 41. During the process, the connecting plate 47 slides along the moving groove 46 through the sliding frame. Because the trajectory of the moving groove 46 is the same as that of the dividing strip 32, the connecting plate 47 always remains connected to the push plate 33, and is contacted and locked after one cycle to carry out the next group of drying and screening. When the push plate 33 moves to the top, the second electric push rod 49 can be extended to meet the requirement that when the push plate 33 descends, the connecting plate 47 still remains plugged into the push plate 33.

[0049] In this embodiment, a first electric push rod 12 is fixed on the outer wall of the screening and drying box 1 away from the baffle 15. A delivery plate 51 is provided at the bottom of the collecting frame 5 and the moving frame 4, and the extended end of the first electric push rod 12 is fixedly connected to the delivery plate 51. The impurities collected inside the collecting frame 5 and at the bottom of the moving frame 4 are pushed by the first electric push rod 12, and the delivery plate 51 concentrates the impurities and delivers them from the outlet end on the side of the baffle 15, thereby keeping the interior of the screening and drying box 1 clean and tidy.

[0050] When the device is used, the mixed feed is fed into the crushing box 2, and the driving motor 22 drives the gear 24 on one side to rotate. The two gears 24 mesh and drive the two crushing rollers 23 to rotate synchronously in the opposite direction to crush the mixed feed. The crushed particles fall on the surface of the dividing belt 32 of the delivery platform, and are processed and filtered through the coarse screen slot, and then fall on the fine screen plate 42 at the bottom of the moving tube for secondary filtration to screen out particles of uniform size. When the dividing belt 32 moves, the coarse screen slot will pass through the mounting frame 53 for cleaning to prevent clogging, and the electric heating rod 52 will be used to spread the bottom of the moving frame 4. The feed is dried, the scraper 43 passes through the straight gap 14 through the extension plate 44 and is connected to the outlet plate 411 through the movable gap 13 of the dividing belt 32. The movable gap 13 also has the same moving trajectory as the dividing belt 32. Then, when the dividing belt 32 moves with the driving shaft 31, the outlet plate 411 drives the extension plate 44 to move. At this time, the outlet plate 411 also slides up and down along the insertion rod 45 to maintain the connection relationship with the extension plate 44. With the cyclic rotation of the dividing belt 32, the scraper 43 is driven to move along the screen slot of the fine screen plate 42 at the bottom of the moving frame 4 to clear the blocked impurities. The thickness of the spread is based on the distance between the push plate 33 and the moving frame 4. The excess is pushed forward. After the drying is completed, the feed is sent out from the delivery outlet 41 of the moving frame 4. When the material at the bottom of the moving frame 4 needs to be sent out, the push plate 33 is transferred to be parallel to the connecting plate 47, and the extended end of the second electric push rod 49 inside the connecting plate 47 is inserted into the slot 410 of the push plate 33 to realize the plugging of the push plate 33 and the connecting plate 47. Then, when the push plate 33 continues to move with the dividing strip 32, the connecting plate 47 and the push plate 33 are combined into a complete plate to spread the material at the bottom of the moving frame 4. All the feed is pushed out from one side of the delivery outlet 41. During the process, the connecting plate 47 slides along the moving groove 46 through the sliding frame. Because the trajectory of the moving groove 46 is the same as the dividing strip 32, the connecting plate 47 always keeps the connection with the pushing plate 33, and contacts and locks after one cycle, and then the next group of drying and screening is carried out, and enters the next process through the discharge channel 11. The impurities collected inside the collecting frame 5 and at the bottom of the moving frame 4 are pushed by the first electric push rod 12, and the delivery plate 51 concentrates the impurities and sends them out from the outlet end on one side of the baffle 15, so as to keep the inside of the screening and drying box 1 clean.

[0051] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0052] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A method for producing fermented crayfish feed, characterized in that: The production method comprises the following steps: (1) Raw material integration: prepare tofu dregs, soybean meal, rice bran meal, rapeseed meal, wheat bran, finished fish meal, corn or broad bean granules and betaine in appropriate amounts, wash the raw materials to remove surface dirt and impurities, mix them evenly in a mixing box to obtain mixed feed; (2) Crushing and screening: The mixed feed is sent to the crushing box and crushed into particles of uniform size and sent to the screening and drying box. The driving shaft drives the dividing belt to move, and the coarse screening slots on the dividing belt are used to screen the larger impurities in the particles. The screened impurities fall into the collection frame, and the feed moves in the moving frame and enters the fine screen plate for secondary screening and impurity removal of fine particles; (3) Drying feed: The feed that falls on the bottom of the moving frame moves with the dividing belt, and the push plate on its surface evenly spreads the accumulated feed on the bottom of the moving frame. A plurality of electric heating rods are arranged at the bottom of the collecting frame, and the spread feed is dried by the electric heating rods to remove residual moisture; (4) Feed delivery: After the connecting plate on the moving frame is locked and connected with the push plate, the feed at the bottom of the moving frame is pushed out from one side of the outlet end and sent into the fermentation box through the discharge channel. Beer yeast dry powder and brown sugar, plant lactobacillus dry powder, plant lactobacillus activated by Bacillus subtilis dry powder and Bacillus subtilis activated fermentation liquid are added into the fermentation box and stirred evenly; (5) Storage and fermentation: The mixed feed prepared in step (3) is placed in a feed fermentation breathing bag and placed in a cool and ventilated place at a temperature of 25 to 35° C. for fermentation for 7 to 10 days.

2. The production equipment of fermented crayfish feed used in the method of claim 1 comprises a screening and drying box (1), characterized in that: A crushing box (2) is fixed on the top of the screening and drying box (1), and two crushing rollers (23) are symmetrically rotatably installed inside the crushing box (2) through bearings. A moving frame (4) is fixed inside the screening and drying box (1), and the two sides and the upper and lower ends of the moving frame (4) are semicircular and linear respectively. The tops of the moving frame (4) and the screening and drying box (1) are both open. A transfer platform (3) is installed inside the moving frame (4) of the screening and drying box (1), and the transfer platform (3) includes a driving shaft (31). Two motor-driven driving shafts (31) are symmetrically rotatably installed on the inner wall of the screening and drying box (1). Dividing belts (32) are sleeved on the surfaces of the two driving shafts (31), and coarse screening grooves are equidistantly provided on the surfaces of the dividing belts (32). Push plates (33) are equidistantly installed on the surfaces of the dividing belts (32). The outermost of the push plates (33) The end of the moving frame (4) is at a certain distance from the inner wall of the moving frame (4), the bottom of the moving frame (4) is provided with a fine screen plate (42), the interior of the fine screen plate (42) is provided with a scraper (43), and the scraper (43) is connected to the side of the dividing strip (32) in a driving manner, the screening and drying box (1) is located between the two driving shafts (31) and the dividing strip (32), and a collecting frame (5) is fixed thereon, the upper end of the collecting frame (5) is open, and the collecting frame (5) and the screening and drying box (1) are both provided with outlets on the same side of the bottom of the moving frame (4), the screening and drying box (1) is provided with a baffle (15) at positions corresponding to the two outlets, the bottom of the collecting frame (5) is fixedly provided with an electric heating rod (52) at equal intervals, a delivery outlet (41) is provided on a semicircular side surface of the moving frame (4), and a discharge channel (11) is provided on the screening and drying box (1) at a position corresponding to the delivery outlet (41).

3. The production equipment of a fermented crayfish feed according to claim 2, characterized in that: A gear (24) is rotatably mounted on the outer side of the crushing box (2) at a position corresponding to the two crushing rollers (23) via a bearing, and the two gears (24) are meshed and connected. A driving motor (22) is fixed at a position of the gear (24) on one side of the crushing box (2), and an output end of the driving motor (22) is fixedly connected to the gear (24) on one side. An inclined plate (21) is fixed at the top side of the two crushing rollers (23) of the crushing box (2).

4. The production equipment of crayfish fermented feed according to claim 2, characterized in that: A mounting frame (53) is fixed at the bottom of the collecting frame (5), and the electric heating rod (52) is fixed at the bottom of the mounting frame (53), and the mounting frame (53) slides out of the coarse screening slot of the dividing belt (32).

5. The production equipment of crayfish fermented feed according to claim 2, characterized in that: The screening and drying box (1) is provided with a straight notch (14) at a position corresponding to the scraper (43) on one side of the baffle (15), and a moving notch (13) is provided on the screening and drying box (1) corresponding to the moving path of the dividing strip (32). An extension plate (44) is slidably connected in the straight notch (14), and the extension plate (44) is fixedly connected to the scraper (43). An outlet plate (411) is slidably connected in the outlet plate (411), and the outlet plate (411) is rotatably connected to the side of the dividing strip (32) via a bearing.

6. The production equipment of fermented crayfish feed according to claim 5, characterized in that: The top of the extension plate (44) is fixed with an insertion rod (45), and the outlet plate (411) is slidably sleeved on the surface of the insertion rod (45), the upper end of the insertion rod (45) is sleeved with a spring (412), and the bottom of the spring (412) is fixedly connected to the outlet plate (411).

7. The production equipment of fermented crayfish feed according to claim 1, characterized in that: Vertical columns (331) are provided on both sides of the push plate (33), and vertical grooves (332) are provided on the inner surfaces of the vertical columns (331). One end of the vertical column (331) is fixedly connected to the side of the dividing strip (32). Weight blocks (333) are fixed at positions corresponding to the vertical grooves (332) on both sides of the push plate (33), and the weight blocks (333) slide along the inside of the vertical grooves (332).

8. The production equipment of fermented crayfish feed according to claim 7, characterized in that: The inner walls of both sides of the movable frame (4) are provided with movable grooves (46), and the movable grooves (46) have the same moving track as the dividing strip (32). A connecting plate (47) is provided at the interval between the push plate (33) and the inner wall of the movable frame (4), and sliding blocks (48) are fixed at both ends of the connecting plate (47), and the sliding blocks (48) slide along the movable grooves (46).

9. The production equipment of fermented crayfish feed according to claim 8, characterized in that: A plurality of second electric push rods (49) are fixed inside one side of the connecting plate (47) facing the push plate (33); a slot (410) is provided on the push plate (33) at a position corresponding to the second electric push rod (49); and the extended end of the second electric push rod (49) can be slidably inserted into the slot (410).

10. The production equipment of fermented crayfish feed according to claim 1, characterized in that: A first electric push rod (12) is fixed on the outer wall of the screening and drying box (1) on the side away from the baffle (15), and a delivery plate (51) is provided at the bottom of the collecting frame (5) and the moving frame (4), and the extended end of the first electric push rod (12) is fixedly connected to the delivery plate (51).

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