Process and production equipment for preparing feed raw materials from animal wastes

Abstract

The invention provides a process and production equipment for preparing a feed raw material from animal waste. The process comprises the working procedures of raw material treatment, heating sterilization, heat preservation enzymolysis, compound enzyme inactivation, fermentation compounding and the like. In the raw material treatment process, animal waste is smashed to form a minced material, and in the temperature rising and sterilizing process, the minced material is heated at 54-56 DEG C, so that infectious microbes in the raw materials can be effectively killed; in the fermentation compounding process, the minced material is subjected to enzymolysis by adopting enzymatic hydrolysate, then soybean meal is added for fermentation compounding to form a feed raw material, the feed raw material can be stored for a long time without spray drying or concentrated storage, and the rich yeast fragrance can be kept, so that the energy consumption required by storage can be effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of feed processing, in particular to a process and production equipment for making feed raw materials from animal waste. Background Art

[0002] The raw materials in aquaculture feed usually include animal scraps or fish, but animal scraps or fish are not easy to preserve due to their high moisture content. There are two main conventional preservation methods: one is through the production process of steaming, pressing and drying; the other is through enzymatic or hydrolytic process.

[0003] In the prior art, the enzymatic hydrolysate needs to be spray-dried or concentrated before preservation, and after concentration, salt or mildew inhibitors need to be added to extend the shelf life. This preservation method is costly and easily affects the quality of the feed. Summary of the invention

[0004] In view of the deficiencies of the above background technology, the present invention provides a process and production equipment for making feed raw materials from animal waste.

[0005] The present invention adopts the following technical solution: The present invention provides a process for preparing feed raw materials from animal waste, the process comprising: Raw material processing: preparing animal waste and crushing the animal waste to form the shredded material; Sterilization by heating: heating the parboiled material until the temperature of the parboiled material is stabilized at 54-56°C; Heat preservation enzymolysis: adding enzymolysis solution to the shredded material, and then keeping the temperature at 54-56° C. for 4-5 hours, stirring the shredded material at a low speed during the process, wherein the enzymolysis solution and the shredded material are calculated by weight: 1 part of shredded material: 0.04-0.06 part of enzymolysis solution; Inactivate complex enzyme: raise the temperature to 70-80°C and keep warm for 28-32 minutes; Fermentation compound: add soybean meal and soybean meal composite bacteria to the pulp after enzymatic hydrolysis, stir until mixed evenly, and then bag and ferment. The fermentation temperature is 18-22°C, and the fermentation time is 5 days in winter and 3 days in spring, summer and autumn, after which the feed raw material is obtained.

[0006] In a feasible implementation manner of the first aspect, during the heat preservation enzymatic hydrolysis process, the rotation speed of the low-speed stirring is 20 to 30 r / min.

[0007] In a feasible implementation manner of the first aspect, in the fermentation complex, the water weight of the mixed fermentation system formed by soybean meal, soybean meal composite bacteria and enzymatic hydrolysate accounts for 38% to 42%.

[0008] In a feasible implementation manner of the first aspect, the finished feed can be obtained by mixing the feed raw material and the dry raw material, and the mixing ratio of the feed raw material to the dry raw material is 1:2-3.

[0009] In a feasible implementation manner of the first aspect, the dry raw material is soybean meal.

[0010] In a second aspect, the present invention also discloses a production equipment using the above process, the production equipment comprising a meat grinder, a warm bath tank, an enzymolysis tank and a stirring tank; wherein, The meat grinder is used to grind animal waste into minced material; The warm bath tank contains hot water, and the warm bath tank is arranged under the discharge port of the meat grinder, so that the minced material falls into the hot water in the warm bath tank for heating; The enzymolysis tank and the warm bath tank are connected by a pipeline, and a stirring rod is arranged in the enzymolysis tank, and the stirring rod stirs the mushy material and the enzymolysis liquid flowing into the warm bath tank by rotating, and the enzymolysis tank heats the mushy material and the enzymolysis liquid; The stirring tank and the enzymolysis tank are connected by a pipeline, and a stirring assembly is arranged in the stirring tank, the stirring assembly includes a vertical rod and a shovel plate, the vertical rod is vertically arranged in the stirring tank, and a plurality of the shovel plates are vertically fixed on the vertical rod, and the vertical rod rotates in the stirring tank to stir the soybean meal, the soybean meal composite bacteria and the enzymolyzed mushy material in the stirring tank until they are mixed.

[0011] In a feasible implementation manner of the second aspect, the production equipment also includes a driving assembly, which includes a transmission wheel, a connecting frame and a rocker arm. The transmission wheel is restricted to rotate at the top of the mixing tank, and a plurality of push pins are fixed in a circular distribution under the transmission wheel. The connecting frame is arranged below the transmission wheel and is fixed relative to the mixing tank. The connecting frame is connected to a plurality of rocker arms in a circular distribution. The rocker arms are provided with strip holes passing through them, and one end of the rocker arm is connected to the connecting frame for rotation, and each push pin passes through the strip holes of each rocker arm one by one, and the vertical rod is connected to the bottom of the rocker arm.

[0012] In a feasible implementation manner of the second aspect, a bearing seat is fixed under the top of the mixing tank, a rotating shaft is fixed at the center of the transmission wheel, and the rotating shaft is adapted to pass through and fixed to the bearing seat; a connecting piece is fixed on the connecting frame, and the connecting piece includes a connecting rod and a fixed plate, the rotating shaft is a hollow structure, and the lower end of the connecting rod passes through the rotating shaft and is connected to the connecting frame, and the fixed plate is connected and fixed to the top outside the mixing tank.

[0013] In a feasible implementation manner of the second aspect, the connecting frame includes a connecting plate, a support rod and a fixing pin, and fixing pins are arranged in a circular distribution at different positions on the upper and lower surfaces of the connecting plate, each of the fixing pins fixes the support rod, and each of the fixing pins is connected to a rocker arm, so that the rocker arm sleeved outside the fixing pin is located between the support rod and the connecting plate and rotates relative to the connecting plate; the support rod located above is connected and fixed to the top of the mixing tank, and the support rod located below is connected to one of the rocker arms at the end away from the fixing pin, so that the rocker arm is located under the support rod and rotates relative to the connecting plate.

[0014] In a feasible implementation manner of the second aspect, the transmission wheel is a gear, and a driving motor is also fixed on the top outside the stirring tank. The output shaft of the driving motor penetrates downward into the driving gear fixed in the stirring tank, and the driving gear is meshingly connected with the transmission wheel.

[0015] From the above description of the structure of the present invention, it can be seen that compared with the prior art, the present invention has the following advantages: in the process of the present invention, heating the mushy material can effectively kill the miscellaneous bacteria in the raw material, and then the mushy material is enzymatically hydrolyzed with an enzymatic hydrolyzate and then added with soybean meal for fermentation to form a feed raw material. The feed raw material does not need to be spray-dried or concentrated and can be stored for a long time, and can maintain a strong fermentation aroma, thereby effectively reducing the energy consumption required for storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the connection structure of various parts in the production equipment of the present invention.

[0017] Figure 2 for Figure 1 Schematic diagram of the meat grinder and warming bath jar.

[0018] Figure 3 for Figure 1 Schematic diagram of the enzymatic hydrolysis tank.

[0019] Figure 4 for Figure 1 Schematic diagram of the mixing tank.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the stirring tank.

[0021] Figure 6 Schematic diagram of the cross-sectional structure of the mixing tank.

[0022] Figure 7 for Figure 6 A is an enlarged schematic diagram.

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the transmission wheel.

[0024] Fig. 9 Schematic diagram of the drive assembly being arranged on the top plate.

[0025] Fig.10 Schematic diagram of connecting the pendulum rod to the connecting frame.

[0026] Fig.11 Schematic diagram of connecting the flap assembly to the drive assembly.

[0027] Fig.12 for Fig.11 Schematic diagram of the enlarged view at B.

[0028] Fig.13 It is a schematic diagram of each swing rod driving the flap assembly to swing toward the center of the mixing tank in the counterclockwise rotation direction.

[0029] Fig.14 for Fig.13 Schematic diagram after hiding the stirring components.

[0030] Fig.15 for Fig.13 Schematic diagram of the continued rotation until each pendulum rod passes through the center of the mixing tank. DETAILED DESCRIPTION

[0031] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings.

[0032] In the present application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to the change of the orientation of the components in the drawings.

[0033] In a first aspect, the present application provides a process for producing feed raw materials from animal waste, the process comprising: Raw material processing: Prepare animal waste and grind it into a pulp.

[0034] Temperature sterilization: Heat the parboiled material until its temperature stabilizes at 54-56°C, preferably 55°C, to kill bacteria in the raw materials without affecting the enzymatic hydrolysis effect, which is beneficial to improving the shelf life of the final product.

[0035] Heat preservation enzymolysis: add enzymolysis liquid to the mushy material, the weight of enzymolysis liquid and mushy material is 1 part of mushy material to 0.04-0.06 parts of enzymolysis liquid, preferably, the amount of enzyme and the enzymolysis time are optimized and adjusted according to the proportion of small peptides with a molecular weight of 200-2000Da in the protein of the enzymolysis product; then keep warm at a temperature of 54-56°C for 4-5h, and stir the mushy material at a low speed during the enzymolysis process to fully mix the enzymolysis liquid and the mushy material, wherein the rotation speed of the low-speed stirring is 20-30r / min.

[0036] Inactivation of complex enzyme: Raise the temperature to 70-80°C and keep warm for 28-32 minutes, so that the complex enzyme in the enzymatic system can be fully killed under the temperature condition of 70-80°C.

[0037] Fermentation compound: add soybean meal and soybean meal composite bacteria to the enzymatically hydrolyzed pulp, and stir until the mixture is evenly mixed, wherein the weight of water in the mixed fermentation system formed by soybean meal, soybean meal composite bacteria and enzymatic hydrolyzate accounts for 38% to 42%. The mixed material formed after stirring is bagged, preferably an inner film ton bag or a woven bag with an inner film bag, and then each bag of mixed material is stacked and fermented. The fermentation temperature is 18 to 22°C. Specifically, if the room temperature is below 20°C, the air conditioner needs to be used to adjust the room temperature to above 20°C for heat preservation and fermentation; if the room temperature is above 20°C, there is no need to adjust the room temperature, and the fermentation time is 5 days in winter and 3 days in spring, summer and autumn. After that, the feed raw material formed by fermentation of animal waste and soybean meal can be obtained.

[0038] The following is a specific embodiment of the above process: Example 1: From August 20 to 23, 2023, 250 kg of marine fish and 250 kg of silver carp were purchased from Zhang Laoban's frozen warehouse in Datong Lake, Honghu. They were ground into fish paste using a small meat grinder in Hannan Aohua (Hannan District, Wuhan City), packaged in stainless steel barrels with a diameter of 40 cm and a barrel height of 40 cm, and placed in stainless steel barrels with a diameter of 50 cm and a barrel height of 50 cm. The fish paste was heated to 55°C (barrel by barrel) using a gas stove. Xinhua Yang RM enzyme was added at a dosage of 6 kg / ton, and enzymolysis was performed for 4 hours, stirring every 30 minutes. The temperature was raised to 70°C and maintained for 30 minutes to inactivate the composite protease. The next day, the mixture was mixed with enzymatic solution: soybean meal: commercially available fermented soybean meal composite strain = 250 kg: 315 kg: 1.4 kg, and the mixture was packaged in a 40 kg woven bag with an inner membrane bag. Fermentation was performed after palletizing. After fermentation, 1 bag of feed was processed every 2 days.

[0039] Example 2: From September 1 to 5, 2023, 1,500 kg of chicken intestines were purchased from Shanchuan Biology (Hanchuan). At Hannan Aohua (Hannan District, Wuhan City), chicken intestines were ground into minced chicken intestines using a small meat grinder (250 kg per day), and packaged in stainless steel barrels with a diameter of 40 cm and a barrel height of 40 cm. They were placed in iron boxes with a length, width and height of 1.5 m × 0.9 m × 0.6 m (with steam heating pipes at the bottom), and heated to a minced fish temperature of 55 ° C using steam (6 barrels per treatment). Xinhua Yang RM enzyme was added at a dosage of 6 kg / ton, and enzymolysis was performed for 4 hours, stirring every 30 minutes. The temperature was raised to 70 ° C and maintained for 30 minutes to inactivate the composite protease. The next day, the mixture was mixed with enzymatic solution: soybean meal: commercial fermented soybean meal composite strain = 250 kg: 315 kg: 1.4 kg, and the mixture was packaged in 40 kg woven bags with inner membrane bags. Palletizing and fermentation. After fermentation, a batch of 250 kg of raw materials was processed every 2 days.

[0040] Example 3: On September 13, 2023, all the fermented enzymatic feed raw materials were transported to Hunan Aohua (Dingcheng District, Changde City), and added 6% to the puffed mixed breeding No. 1 through the paste raw material pre-mixing system, producing a total of 8 × 3 batches / piece × 3 tons / batch = 72 tons of finished products. At this stage, the feed raw materials have been stored for 23 days, with no mold spots and a strong fermented aroma.

[0041] Example 4: On September 26, 2023, the remaining fermented enzymatic feed raw materials were added to the extruded mixed breeding No. 1 at 6% through the paste raw material pre-mixing system, producing a total of 5 × 3 batches / piece × 3 tons / batch = 45 tons of finished products. At this stage, the feed raw materials have been stored for 33 days, with no mold spots and a strong fermentation aroma.

[0042] It can be seen from the above embodiments that the feed raw material produced by the process of the present invention is formed by enzymatically hydrolyzing the minced material with an enzymatic solution and then adding soybean meal to ferment the resulting feed raw material, which can be stored for a long time without concentration or spray drying. It can be taken out and processed when needed, which can effectively reduce the energy consumption required for storage.

[0043] In addition, the application method of the above feed raw materials is: mixing the feed raw materials and dry raw materials in a ratio of 1:2-3 to obtain a finished feed, wherein the dry raw material can be soybean meal. Further, the feed raw materials and dry raw materials can be mixed through a paste raw material premixing system of a compound feed production line.

[0044] In a second aspect, the present invention also discloses a production device using the above process, as shown in the attached Figure 1 and 2As shown, the production equipment includes a meat grinder 1, a warm bath tank 2, an enzymolysis tank 3 and a stirring tank 4 which are connected in sequence. The upper end of the meat grinder 1 is a feed port, the lower end of the meat grinder 1 is a discharge port, the warm bath tank 2 is arranged under the discharge port of the meat grinder 1, and the warm bath tank 2, the enzymolysis tank 3 and the stirring tank 4 are connected in sequence through pipelines to realize material transportation, and the transportation power is preferably pumped by a pump or pushed by a screw conveyor.

[0045] Continue to refer to the attached Figure 2 The meat grinder 1 is provided with a meat grinder roller at the material outlet. When processing raw materials, the animal waste can be conveyed upward to the outlet of the meat grinder 1 through the belt conveyor 11, so that the animal waste falls into the meat grinder 1 and is crushed by the meat grinder roller to form a mushy material.

[0046] Please refer to the attached Figure 3 , the side walls of the tank bodies of the warm bath tank 2, the enzymolysis tank 3 and the stirring tank 4 are all hollow jackets, and the warm bath tank 2, the enzymolysis tank 3 and the stirring tank 4 are all connected to a water inlet pipe at the lower end, and the side of the upper end is connected to a drain pipe, and the inside of the warm bath tank 2 and the inside of the enzymolysis tank 3 are heated by introducing hot water into the jacket through the water inlet pipe and then discharging it from the drain pipe. Preferably, the warm bath tank 2 and the enzymolysis tank 3 can also be equipped with a hot water tank 5, and hot water is contained in the hot water tank 5, and the hot water is heated by electric heating. The water inlet pipe and the discharge pipe are both connected to the hot water tank 5, and the hot water is pumped to the warm bath tank 2 or the enzymolysis tank 3 by a water pump. Then, the hot water is discharged to the hot water tank 5 through the drain pipe of the warm bath tank 2 or the drain pipe of the enzymolysis tank 3, forming a hot water circulation, thereby realizing the heating of the warm bath tank 2 and the enzymolysis tank 3.

[0047] Continue to refer to the attached Figure 2 and 3 When the mushy material falls into the warm bath tank 2, the mushy material is heated by the heated warm bath tank 2 to achieve temperature sterilization of the mushy material. One side of the top of the enzymolysis tank 3 is connected to a pipeline, and a cover can be set on the other side. After the cover is opened, it can be used to pour the enzymolysis solution, or the enzymolysis solution can also be transported to the enzymolysis tank 3 through other pipelines. A stirring rod 31 is also set in the enzymolysis tank 3, and a motor 32 can be fixed in the middle of the top outside the enzymolysis tank 3. The motor 32 drives the stirring rod 31 to rotate, so that the stirring rod 31 rotates to stir the mushy material flowing into the warm bath tank 2 and the poured enzymolysis solution. At the same time, the mushy material and the enzymolysis solution can be heated by heating the enzymolysis tank 3, so that the enzymolysis solution can keep the mushy material warm and enzymolyze and inactivate the complex enzyme in the enzymolysis system.

[0048] As attached Figure 1 , 4As shown in Figure 5, one side of the stirring tank 4 is connected to the enzymolysis tank 3 through a pipeline, and the other side of the stirring tank 4 can be connected to a screw conveyor, and the soybean meal is put into the stirring tank 4 by the screw conveyor. Further, the production equipment of the present invention can also be configured with a dry material batching bin 6 and a weight loss scale. After the soybean meal is put into the dry material batching bin 6, the dry material batching bin 6 will proportion the soybean meal and put it into the weight loss scale for weighing, and then put it into the screw conveyor after weighing, and then the soybean meal is transported to the stirring tank 4 by the screw conveyor, so that the quantitative soybean meal and the enzymolysis shredded material are fully mixed. Preferably, the production equipment of the present invention also includes a hot water tank 5, which contains hot water and soybean meal composite strains for dissolving the soybean meal composite strains, and the hot water tank 5 is also connected to the stirring tank 4 through a pipeline to transport the dissolved soybean meal composite strains into the stirring tank 4, so that the soybean meal composite strains and the soybean meal and the enzymolysis shredded material are fully mixed to form a mixture.

[0049] As attached Figure 6 As shown, a stirring assembly 42 and a driving assembly 43 are arranged in the stirring tank 4. The stirring assembly 42 includes a vertical rod 421 and a shovel plate 422. The vertical rod 421 is vertically arranged in the stirring tank 4. The driving assembly 43 drives the vertical rod 421 to rotate in the stirring tank 4 with the center line of the stirring tank 4 as the axis and move relative to the center line of the stirring tank 4. Fig. 9 and 10 The driving assembly 43 includes a transmission wheel 431, a connecting frame 432 and a swing rod 433. The transmission wheel 431 is restricted to rotate at the top of the mixing tank 4, and its connection method can be as shown in the attached Figure 7 As shown, a bearing seat is fixed under the top of the mixing tank 4, and a rotating shaft 4312 is fixed at the center of the transmission wheel 431, and the rotating shaft 4312 is adapted to pass through and fixed to the bearing seat. Further, the transmission wheel 431 is a gear, and a driving motor 434 is also fixed on the top of the outside of the mixing tank 4. The output shaft of the driving motor 434 penetrates downward to the fixed driving gear 4341 in the mixing tank 4, and the driving gear 4341 is meshed and connected with the transmission wheel 431. The driving motor 434 drives the driving gear 4341 to rotate, which can drive the transmission wheel 431 to rotate, thereby realizing the automatic rotation of the transmission wheel 431 in the mixing tank 4.

[0050] Please refer to the attached Figure 8 and 9 The connecting frame 432 includes a connecting plate 4321, a supporting rod 4323 and a fixing pin 4322. The fixing pins 4322 are arranged in a circular distribution at different positions on the upper and lower sides of the connecting plate 4321. Each fixing pin 4322 fixes the supporting rod 4323. Fig.10For example, the connecting plate 4321 is a triangular flat plate, and the two angle positions of the connecting plate 4321 are respectively fixedly connected to the fixing pins 4322 on the upper and lower surfaces of the connecting plate 4321, and each fixing pin 4322 fixes the support rod 4323. The support rod 4323 located at the top of the connecting frame 432 and the top of the mixing tank 4 (i.e., the top plate 41) are connected by the connecting piece 44 to fix the connecting frame 432 relative to the mixing tank 4. Figure 8 As shown, the connecting member 44 includes a connecting rod 441 and a fixed plate 442, the fixed plate 442 is fixed to one end of the connecting rod 441, the rotating shaft 4312 is a hollow structure, the lower end of the connecting rod 441 passes through the rotating shaft 4312 and is connected and fixed to the end of the support rod 4323 located above in the connecting frame 432, and its connection and fixing method can be that a section of threaded column is set at the end of the connecting rod 441, and the threaded column passes through the support rod 4323 and is screwed to the nut for fastening. The fixed plate 442 is connected and fixed to the top outside the mixing tank 4, so that the connecting frame 432 is suspended below the transmission wheel 431 through the connection of the connecting member 44, and the connecting frame 432 is fixed relative to the mixing tank 4. The fixing plate 442 can be fixed to the mixing tank 4 by passing a plurality of bolts 426 through the fixing plate 442 and then screwing them into the top plate 41 at the top of the mixing tank 4, and the fixing methods not explicitly shown in this embodiment can all be connected by wearing bolts 426.

[0051] Continue to refer to the attached Fig.10 The connecting frame 432 is connected to a plurality of swing rods 433 in a circular distribution, each swing rod 433 is connected to a stirring assembly 42, and the vertical rod 421 of the stirring assembly 42 is connected to the swing rod 433 so that each shovel plate 422 moves with the swing of the swing rod 433. Fig.11 and 12 The shovel plate 422 is bent to form a steel plate with two inclined surfaces inclined to each other. A connecting sleeve 427 is fixed on one of the inclined surfaces of the shovel plate 422. After the connecting sleeve 427 is sleeved outside the vertical rod 421, bolts 426 are inserted from the upper and lower ends of the connecting sleeve 427. After the bolts 426 pass through the connecting sleeve 427 and the vertical rod 421 and are screwed and fastened with nuts, the shovel plate 422 can be fixed relative to the vertical rod 421. After the vertical rod 421 is connected to the swing rod 433, the lateral direction of the shovel plate 422 is parallel to the length direction of the swing rod 433.

[0052] Continue to refer to the attached Fig.10, one end of the swing rod 433 is connected to the connecting frame 432 for rotation. Specifically, the fixing pins 4322 at two angle positions of the connecting frame 432 are connected to a swing rod 433, so that the swing rod 433 sleeved outside the fixing pin 4322 is located between the support rod 4323 and the connecting plate 4321 and rotates relative to the connecting plate 4321. In addition, the supporting rod 4323 located at the bottom is fixed with a connecting pin 4314 at an angle position corresponding to the connecting plate 4321 where the fixing pin 4322 is not provided at the end away from the fixing pin 4322. The connecting pin 4314 is connected to the end of a swing rod 433, so that the swing rod 433 is located under the supporting rod 4323 and rotates relative to the connecting plate 4321, thereby forming a structure in which each corner position of the annular surface of the connecting frame 432 is connected to a rotatable swing rod 433, and each swing rod 433 is at a different height position relative to the connecting plate 4321 to rotate to avoid interference.

[0053] A plurality of push pins 4311 are fixed in a circular distribution under the transmission wheel 431. Each swing rod 433 is provided with a strip hole passing through it. After the connection frame 432 is installed and fixed, each push pin 4311 passes through the strip hole of each swing rod 433 one by one. In this way, when the transmission wheel 431 rotates, the push pins 4311 can drive each swing rod 433 to swing accordingly, and the push pins 4311 move relative to the strip hole, thereby driving each stirring assembly 42 to rotate in the mixing tank 4 with the center line of the mixing tank 4 as the axis while moving relative to the center line of the mixing tank 4. As shown in the attached figure Figures 13 to 15 As shown, when the transmission wheel 431 rotates and drives each swing rod 433 to swing toward the center of the mixing tank 4, it drives each upright rod 421 and each shovel plate 422 to rotate and move toward the center of the mixing tank 4, and when the transmission wheel 431 continues to rotate and drives each swing rod 433 to pass through the center of the mixing tank 4 and swing toward the outside of the mixing tank 4, it drives each upright rod 421 and each shovel plate 422 to rotate and move toward the outside of the mixing tank 4. It can be seen that in the process of the driving component 43 of the present invention driving the stirring component 42 to rotate, it can drive each upright rod 421 and the shovel plate 422 to rotate and move relative to the inside and outside directions of the mixing tank 4, rather than just rotating around a fixed circumferential diameter. This multi-directional movement method is conducive to contacting more materials in the mixing tank 4 (i.e., soybean meal, soybean meal composite bacteria and enzymatically hydrolyzed shredded material), so it is conducive to promoting the full mixing of soybean meal, soybean meal composite bacteria and enzymatically hydrolyzed shredded material to form feed raw materials.

[0054] In addition, the mixing assembly 42 also includes a fixing member 423, a guide member 424 and a spring 425. The vertical rod 421 is located under the swing rod 433 through the connection of the fixing member 423. The fixing member 423 is U-shaped, and the side surfaces of the fixing member 423 are respectively sleeved outside the two sides of the swing rod 433 and fixed by means of bolts 426. A guide hole is provided through the middle side of the fixing member 423. After the top of the column passes through the guide hole, it is connected and fixed to the guide member 424 between the two side surfaces of the fixing member 423, and the vertical rod 421 is transversely penetrated at the position under the fixing member 423. The column is also sleeved with a spring 425 between the fixing member 423 and the guide member 424. The elastic force of the spring 425 lifts the guide member 424 until the blocking pin 428 is against the fixing member 423.

[0055] When the driving wheel 431 drives the swing rod 433 to swing, the pushing pin 4311 moves relative to the strip hole. Therefore, when the pushing pin 4311 can move to pass through the fixing member 423, the guide member 424 can be pressed down along the guiding slope of the guide member 424, thereby driving the vertical rod 421 and each shovel plate 422 to descend. When the pushing pin 4311 moves to leave the guide member 424, the guide member 424 rises again under the tensile force of the spring 425, thereby forming a shovel plate 422 that gradually descends and then gradually rises in the process of rotating around the center line of the mixing tank 4, forming a stir-frying action similar to shoveling the material in the mixing tank 4 downward. Through this stir-frying action, the hot air in the mixing tank 4 is turned up to enter the material during the mixing process, which can improve the heating efficiency of the soybean meal, the soybean meal composite bacteria and the enzymatically hydrolyzed pulp during the mixing and stirring process. It can be seen that the driving component 43 in the stirring tank 4 can drive the shovels 422 of each stirring component 42 to rotate and move in the stirring tank 4 while also being able to rise and fall. This method is beneficial to promoting the full mixing of soybean meal, soybean meal composite bacteria and enzymatically hydrolyzed mushy material and improving the heating efficiency of soybean meal, soybean meal composite bacteria and enzymatically hydrolyzed mushy material, thereby helping to improve the production efficiency of feed raw materials.

[0056] In addition, the bottom of the mixing tank 4 is an inclined surface inclined toward the center, and a discharge port is arranged at the center of the bottom of the mixing tank 4. The bottom outside the mixing tank 4 can be connected to a vertically arranged screw conveyor at the discharge port. The bottom of the screw conveyor is used to place packaging bags. The spiral blades of the screw conveyor are rotated to drive the feed raw materials downward into the packaging bags (i.e., inner film ton bags or woven bags with inner film bags). The packaging bags are then stacked to allow the mixed soybean meal, soybean meal composite bacteria and enzymatically hydrolyzed pulp to be fermented together.

[0057] In summary, the feed raw material produced by the process of the present invention is a feed raw material formed by enzymatic hydrolysis of the shredded material with an enzymatic hydrolyzate and then adding soybean meal for fermentation. The feed raw material can be stored for a long time without concentration or spray drying, and can be taken out and processed when needed, which can effectively reduce the energy consumption required for storage. In addition, the application of the production equipment of the present invention in the production process of the present invention can save labor costs and is conducive to improving the production efficiency of feed raw materials.

[0058] The above is only a specific implementation of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A process for producing feed raw materials from animal waste, characterized in that: The process includes: Raw material processing: preparing animal waste and grinding it into a pulp; Sterilization by heating: heating the parboiled material until the temperature of the parboiled material is stabilized at 54-56°C; Heat preservation enzymolysis: adding enzymolysis solution to the shredded material, and then keeping the temperature at 54-56° C. for 4-5 hours, stirring the shredded material at a low speed during the process, wherein the enzymolysis solution and the shredded material are calculated by weight: 1 part of shredded material: 0.04-0.06 part of enzymolysis solution; Inactivate complex enzyme: raise the temperature to 70-80°C and keep warm for 28-32 minutes; Fermentation compound: add soybean meal and soybean meal composite bacteria to the pulp after enzymatic hydrolysis, stir until mixed evenly, and then bag and ferment. The fermentation temperature is 18-22°C, and the fermentation time is 5 days in winter and 3 days in spring, summer and autumn, after which the feed raw material is obtained.

2. The process according to claim 1, characterized in that During the heat preservation enzymolysis process, the rotation speed of the low-speed stirring is 20 to 30 r / min.

3. The process according to claim 1, characterized in that In the fermentation compound, the water weight of the mixed fermentation system formed by soybean meal, soybean meal composite bacteria and enzymatic hydrolysate accounts for 38% to 42%.

4. A process according to any one of claims 1 to 3, characterized in that After the feed raw materials and the dry raw materials are mixed, a finished feed can be obtained, and the mixing ratio of the feed raw materials to the dry raw materials is 1:2-3.

5. The process according to claim 4, characterized in that The dry raw material is soybean meal.

6. A production equipment using the process according to any one of claims 1 to 3, characterized in that: The production equipment includes a meat grinder, a warm bath tank, an enzymatic hydrolysis tank and a mixing tank; The meat grinder is used to grind animal waste into minced material; The warm bath tank contains hot water, and the warm bath tank is arranged under the discharge port of the meat grinder, so that the minced material falls into the hot water in the warm bath tank for heating; The enzymolysis tank and the warm bath tank are connected by a pipeline, and a stirring rod is arranged in the enzymolysis tank, and the stirring rod stirs the mushy material and the enzymolysis liquid flowing into the warm bath tank by rotating, and the enzymolysis tank heats the mushy material and the enzymolysis liquid; The stirring tank and the enzymolysis tank are connected by a pipeline, and a stirring assembly is arranged in the stirring tank, the stirring assembly includes a vertical rod and a shovel plate, the vertical rod is vertically arranged in the stirring tank, and a plurality of the shovel plates are vertically fixed on the vertical rod, and the vertical rod rotates in the stirring tank to stir the soybean meal, the soybean meal composite bacteria and the enzymolyzed mushy material in the stirring tank until they are mixed.

7. The production equipment according to claim 6, characterized in that The production equipment also includes a driving component, which includes a transmission wheel, a connecting frame and a rocker arm. The transmission wheel is restricted to rotate at the top of the mixing tank, and a plurality of push pins are fixed in an annular distribution under the transmission wheel. The connecting frame is arranged below the transmission wheel and is fixed relative to the mixing tank. The connecting frame is connected to a plurality of rocker arms in an annular distribution. The rocker arms are provided with strip holes passing through them, and one end of the rocker arm is connected to the connecting frame for rotation. The push pins pass through the strip holes of the rocker arms one by one, and the vertical rod is connected to the bottom of the rocker arm.

8. The production equipment according to claim 7, characterized in that A bearing seat is fixed under the top of the mixing tank, and a rotating shaft is fixed at the center of the transmission wheel. The rotating shaft is adapted to pass through and is fixed to the bearing seat; a connecting piece is fixed on the connecting frame, and the connecting piece includes a connecting rod and a fixed plate. The rotating shaft is a hollow structure. The lower end of the connecting rod passes through the rotating shaft and is connected to the connecting frame. The fixed plate is connected and fixed to the top outside the mixing tank.

9. The production equipment according to claim 7 or 8, characterized in that: The connecting frame includes a connecting plate, a support rod and a fixing pin. The fixing pins are arranged in a circular distribution at different positions on the upper and lower sides of the connecting plate. Each of the fixing pins fixes the support rod. Each of the fixing pins is connected to a swing rod, so that the swing rod sleeved outside the fixing pin is located between the support rod and the connecting plate and rotates relative to the connecting plate; the support rod located at the top is connected and fixed to the top of the mixing tank, and the support rod located at the bottom is connected to one of the swing rods at the end away from the fixing pin, so that the swing rod is located under the support rod and rotates relative to the connecting plate.

10. The production equipment according to claim 7 or 8, characterized in that: The transmission wheel is a gear, and a driving motor is also fixed on the top outside the stirring tank. The output shaft of the driving motor penetrates downward into the stirring tank to fix the driving gear, and the driving gear is meshed and connected with the transmission wheel.

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