CN109349672B

CN109349672B - Biological feed additive production system with cooking fermentation function

Info

Publication number: CN109349672B
Application number: CN201811423519.5A
Authority: CN
Inventors: 常寨成; 施维; 黄海龙; 陈晓旭; 韩晓星; 胡曦; 袁媛
Original assignee: Myande Group Co Ltd
Current assignee: Myande Group Co Ltd
Priority date: 2018-11-27
Filing date: 2018-11-27
Publication date: 2024-02-06
Anticipated expiration: 2038-11-27
Also published as: CN109349672A

Abstract

The invention relates to a biological feed additive production system with digestion fermentation, which comprises a proportioning device and an aerobic fermentation machine, wherein the outlet of a feeding hopper is connected with a plurality of proportioning bins through a raw material lifting machine, the outlet of each proportioning bin is respectively connected with a proportioning scale, the outlet of each proportioning scale is connected with a raw material buffering bin, the outlet of each raw material buffering bin is connected with a feeding lifting machine, the outlet of each feeding lifting machine is connected with a feeding conveyor, the outlets of the feeding conveyor are respectively connected with digestion tanks, the discharge outlets of the digestion tanks are respectively connected with digestion material buffering bins, the feed screw outlets at the bottoms of the digestion material buffering bins are respectively connected with the feed inlet of an air cooling machine, and the discharge outlet of the air cooling machine is connected with a wet material air conveying pipeline. The wet material wind delivery pipeline is connected with the aerobic fermentation machine, the aerobic fermentation outlet is connected with the facultative fermentation machine or the anaerobic fermentation tank, and the facultative fermentation outlet or the anaerobic fermentation outlet is connected with the drying system. The system gives consideration to facultative or anaerobic fermentation, the feed is rich in nutrition balance, and the fermentation process is not easy to be contaminated by infectious microbe.

Description

Biological feed additive production system with cooking fermentation function

Technical Field

The invention relates to a production system of fermented feed, in particular to a production system of a biological feed additive with cooking fermentation, belonging to the technical field of fermented feed production.

Background

The traditional biological fermentation feed production process is relatively simple, and generally comprises feeding, inoculation, facultative fermentation, high-temperature drying and packaging. The raw materials are only one raw material without ingredients, and the process of ingredients, stewing and utilizing waste heat of stewing is not needed. The nutrition of the raw materials is unbalanced by using a single raw material, and the raw materials are easy to be contaminated by miscellaneous bacteria in the subsequent fermentation process without steaming and sterilizing.

The amount of probiotics and biological metabolites generated by fermentation is small, and the probiotics and the biological metabolites are partially inactivated due to high drying temperature, so that the biological activity of the biological fermentation feed is reduced, the value of the biological fermentation feed is also reduced, and the consistency of the product quality is poor. A single-layer fermentation machine is generally adopted, so that the occupied area is large; the manual operation mode is adopted, so that the labor intensity is high, the scale is small, and industrialization cannot be realized; the tail gas is directly discharged without treatment, and the environment is polluted.

Disclosure of Invention

The invention aims to overcome the problems in the prior art and provide a biological feed additive production system with cooking fermentation, which can mix and blend various raw materials, so that the nutrition of the feed is balanced, and the fermentation process is not easy to be contaminated by infectious microbe.

In order to solve the technical problems, the biological feed additive production system with the digestion and fermentation comprises a proportioning device and an aerobic fermentation machine, wherein the proportioning device comprises a plurality of proportioning bins, the bottoms of the proportioning bins are respectively provided with proportioning spirals, the outlets of the proportioning spirals are respectively connected with inlets of proportioning scales, the outlets of the proportioning scales are connected with inlets of raw material buffer bins, the feeding spiral outlets at the bottoms of the raw material buffer bins are connected with inlets of a feeding lifting machine, the outlets of the feeding lifting machine are connected with inlets of a feeding conveyor, the outlets of the feeding conveyor are respectively connected with feed inlets of the digestion tanks through feed control valves, discharge ports of the digestion tanks are respectively connected with inlets of the digestion material buffer bins, steam inlets of the digestion tanks are respectively connected with steam pipes, hot water inlets of the digestion tanks are respectively connected with hot water pipes, feed spiral outlets at the bottoms of the digestion material buffer bins are respectively connected with feed inlets of an air cooling machine, and discharge ports of the air cooling machine are connected with a wet material conveying pipeline through a digestion material air shutter.

Compared with the prior art, the invention has the following beneficial effects: the raw materials can be respectively poured into the charging hoppers, lifted to a high position by the raw material lifting machine and then stored in the corresponding proportioning bins, when proportioning is carried out, the raw materials are sequentially fed into the proportioning scale by the corresponding proportioning screw to be weighed and metered, the metered raw materials are fed into the raw material buffering bin to be temporarily stored and mixed, and the mixed proportioning ensures that the nutrition of the fermented product is balanced. After all the raw materials are weighed, the mixed raw materials enter a feeding lifting machine through a feeding screw at the bottom of a raw material buffer bin, the lifted mixed raw materials are sent into each cooking pot through a feeding conveyor, raw steam enters a steam inlet of each cooking pot from a raw steam pipe, and hot water enters a hot water inlet of each cooking pot from a hot water pipe, so that the mixed raw materials in the cooking pot are heated to 120-130 ℃ for cooking and sterilizing, microbial pollution caused by the raw materials in an aerobic fermentation process is reduced, and proteins, starch and the like in the materials are denatured, so that the aerobic fermentation is facilitated; the mixture after cooking sterilization is discharged into a cooking material buffer bin, and then is sent into an air cooling machine for cooling through a feeding spiral outlet at the bottom of each cooking material buffer bin, and the cooled ingredients enter a wet material air supply pipeline through a cooking discharging air shut-off device and are fed into the next working procedure through compressed air blown out by a Roots blower.

As an improvement of the invention, the steam exhaust ports of each cooking pot are connected with a cooking steam exhaust pipe, the outlet of the cooking steam exhaust pipe is connected with the lower part of a waste heat absorption tower through a cooking steam exhaust valve, the outlet of the bottom of the waste heat absorption tower is connected with the hot water inlet of a hot water pot through a water outlet pipe of the absorption tower, the bottom of the hot water pot is connected with the inlet of a washing circulating pump, the outlet of the washing circulating pump is connected with a spray pipe at the upper part of the waste heat absorption tower through a spray water supply pipe, and the air outlet at the top of the waste heat absorption tower is connected with a cooking tail gas discharge pipe; the bottom outlet of the hot water tank is also connected with the inlet of a hot water pump, and the outlet of the hot water pump is connected with the hot water pipe. Steam generated by stewing raw materials is discharged from a stewing steam discharge pipe, enters a liquid phase at the lower part of the waste heat absorption tower through a stewing steam discharge valve, and heats hot water at the bottom of the waste heat absorption tower to form primary recovery of heat of stewing steam; the hot water after heating enters a hot water tank from a water outlet pipe of the waste heat absorption tower, the hot water in the hot water tank is delivered to a spray pipe at the upper part of the waste heat absorption tower through a washing circulating pump and a spray water supply pipe for downward spraying, so that a small amount of fine materials entering a gas phase of the waste heat absorption tower are fully complemented, and clean tail gas of the washing tower enters a cooking tail gas discharge pipe from the top of the waste heat absorption tower at about 70 ℃; the hot water in the hot water tank and the complemented fine materials are sent into the cooking tank through the hot water pipe by the hot water pump, so that the fine materials are completely recovered, and most of steam heat generated by cooking is recovered and utilized by the cooking tank. Hot water is prepared by adding a hot water tank and a waste heat absorption tower and waste heat, so that hot water is provided for the cooking tank, and steam consumption is reduced.

As a further improvement of the invention, the bottom of the hot water tank is provided with a steam heating pipe, and the inlet of the steam heating pipe is connected with a raw steam pipe; the water supplementing port of the hot water tank is connected with the clear water pipe; the cooking exhaust pipe is also connected with the cooking tail gas exhaust pipe through a cooking exhaust bypass valve. When the water temperature in the hot water tank is low, fresh steam can be supplemented to raise the water temperature to 70 ℃. The steam generated by steaming can be directly sent into the steaming tail gas discharge pipe by opening the steaming exhaust bypass valve.

As a further improvement of the invention, the outlet of the wet material air supply pipeline and the aerobic bacteria liquid pipe are connected into the feeding end of the liquid material mixing conveyor together, the upper part of the discharging end of the liquid material mixing conveyor is connected with the bottom outlet of the aerobic bacteria powder bin, and the lower part of the discharging end of the liquid material mixing conveyor is connected with the feeding port of the bacteria powder material mixing machine; the discharging port of the fungus powder material mixer is connected with an aerobic central pipe of the aerobic fermentation machine, the aerobic central pipe is communicated with all layers of aerobic fermentation beds of the aerobic fermentation machine, hot water heating systems are respectively arranged in top plates of all the aerobic fermentation layers, and the lower port of the aerobic central pipe is connected with an aerobic discharging chute. The material after being steamed and sterilized enters the inlet end of the liquid-material mixing conveyor from the wet material air supply pipeline and the material distributing tee joint, the aerobic bacteria liquid flows out from the aerobic bacteria liquid pipe and also enters the inlet end of the liquid-material mixing conveyor, the material is fully mixed with the aerobic bacteria liquid while advancing along the liquid-material mixing conveyor, and cold water can be injected through the aerobic layer liquid injection pipe to ensure that the moisture content of the material is about 45%; the aerobic bacteria powder is discharged from an aerobic bacteria powder bin under the action of a bacteria powder feeding auger, enters the outlet end of a liquid material mixing conveyor, then enters a bacteria powder material mixing machine together with materials, enters an aerobic central material pipe of an aerobic fermentation machine after being uniformly mixed with the materials, and enters each layer of aerobic fermentation bed through the aerobic central material pipe. Hot water at about 70 ℃ can be injected into cold materials through an aerobic bacteria liquid pipe, the hot water is uniformly mixed with the materials in a liquid material mixing conveyor to raise the temperature of the materials to about 35 ℃ and then mixed with aerobic bacteria powder; avoiding the scalding and killing of the aerobic bacteria caused by the direct contact of the hot water and the aerobic bacteria powder. The material after aerobic fermentation enters an aerobic discharging chute from the lower end of an aerobic central material pipe and is discharged. Aerobic fermentation is first used to produce large amounts of biological metabolites by microorganisms, mainly moulds. Operators need to enter the fermentation machine in the fermentation process sometimes, and can inevitably bring mixed bacteria, the mixed bacteria are not harmful in the air, but condensed water is easy to generate on the ceiling of the aerobic fermentation machine with a steel structure, and the condensed water drops into the material to bring the mixed bacteria into the material, so that the mixed bacteria are polluted. The top of each fermentation layer is provided with a circulating water heating function, so that the ceiling is kept above the dew point temperature, the formation of top plate condensed water can be prevented, and the phenomenon that the top plate condensed water drops to bring mixed bacteria and pollute materials is avoided.

As a further improvement of the invention, one side of the tower wall above each layer of aerobic fermentation bed is provided with an aerobic layer air outlet and an aerobic layer air exhaust door, and the other side of the tower wall above each layer of aerobic fermentation bed is provided with an aerobic layer air return opening and an aerobic layer air return regulating door; an aerobic layer air inlet is formed in the wall of the tower body below each aerobic fermentation bed, an atomization nozzle is arranged at the inner side of the aerobic layer air inlet, and an inlet of the atomization nozzle is connected with a humidifying pipeline; the outer end of the air inlet of the aerobic layer is connected with the air outlet of the aerobic fermentation heat exchanger, the air inlet of the aerobic fermentation heat exchanger is connected with the air outlet of the aerobic fermentation fan, the air inlet of the aerobic fermentation fan is respectively connected with the aerobic fermentation return air pipe and the aerobic fermentation fresh air pipe through three-way pipes, the aerobic fermentation return air pipe is connected with the outer port of the aerobic layer return air regulating door, and the aerobic fermentation fresh air pipe is communicated with the atmosphere through the aerobic layer fresh air regulating door. Air is fed into the lower part of the aerobic fermentation bed through an air inlet of the aerobic layer by an aerobic fermentation fan, the temperature of the air is regulated by an aerobic fermentation heat exchanger, the air with proper temperature is uniformly blown upwards through holes of the aerobic fermentation bed, oxygen is supplied to materials, one part of the air passing through the material layer is discharged from an air exhaust door of the aerobic layer, the other part of the air is discharged through an air return regulating door of the aerobic layer, and the air and fresh air entering from a fresh air regulating door of the aerobic layer enter an inlet of the aerobic fermentation fan together, so that the opening degree of the air return regulating door of the aerobic layer is changed, and the air return quantity can be regulated; the fresh air quantity can be regulated by changing the opening degree of the fresh air regulating door of the aerobic layer. The fresh air and the return air are mixed, so that the oxygen content of the aerobic layer can be ensured, and part of heat can be recovered to save energy. The atomizing nozzle can humidify along with fresh air, so that the relative humidity in the fermentation tower is kept above 90%, and the microbial growth is facilitated.

As a further improvement of the invention, the upper end of the aerobic fermentation heat exchanger is connected with a steam valve and a cooling water outlet valve respectively, the inlet of the steam valve is connected with a raw steam pipe, and the outlet of the cooling water outlet valve is connected with a cooling water outlet pipe; the lower end of the aerobic fermentation heat exchanger is connected with a condensate drain valve and a cooling water inlet valve respectively, an outlet of the condensate drain valve is connected with a condensate pipe, and an inlet of the cooling water inlet valve is connected with a cooling water inlet pipe. When the air in the aerobic layer needs to be heated, a steam valve and a condensate drain valve are simultaneously opened, a cooling water inlet valve and a cooling water outlet valve are closed, steam enters the aerobic fermentation heat exchanger, and the steam becomes condensate to be drained from the condensate drain valve after the air is heated. When the air of the aerobic layer needs to be cooled, a cooling water inlet valve and a cooling water outlet valve are simultaneously opened, a steam valve and a condensate drain valve are closed, cooling water enters the aerobic fermentation heat exchanger, and cooling air is discharged from the cooling water outlet valve.

As a further improvement of the invention, the outlet of the aerobic discharging chute is connected with the inlet of an aerobic material conveyor, the outlet of the aerobic material conveyor is connected with an aerobic material air conveying pipe through an air shutter, the outlet of the aerobic material air conveying pipe and the outlet of a facultative bacteria liquid pipe are connected with the inlet of a facultative bacteria liquid mixer through a drag chain frame, the facultative bacteria liquid mixer is positioned on a common distribution rail above the feed inlets of all facultative fermentation machines, can translate along the common distribution rail and distribute materials to the feed inlets of all facultative fermentation machines, and hot water heating systems are arranged in the top plate and the bottom plate of each facultative fermentation machine; the discharge ports of the facultative fermentation machines are respectively connected with a facultative material belt conveyor, the discharge ends of the facultative material belt conveyor are connected with the inlet of a facultative material scattering machine, and the outlet of the facultative material scattering machine is connected with the discharge pipe of the fermentation section. The material after aerobic fermentation enters an aerobic material conveyor, then enters an inlet of a facultative liquid material mixer through an aerobic material air conveying pipe, and facultative bacteria liquid discharged from a facultative bacteria liquid pipe also enters the inlet of the facultative liquid material mixer. In the facultative liquid and material mixer, the material and facultative bacteria liquid are mixed evenly and then discharged, and then enter the feed inlet of the facultative fermentation machine. The facultative liquid mixer moves along the shared distribution track, so that the facultative liquid mixer can feed a plurality of facultative fermentation machines, and the number of mixers is reduced. The materials entering the facultative fermenter are uniformly distributed on a facultative fermentation bed, and after facultative fermentation, lactobacillus, saccharomycetes, bacillus and the like generate biological metabolites and induce the fragrance and aroma of animal feeding, so that the probiotics and the biological metabolite types generated by fermentation are increased, the probiotics are fed by the animals, the probiotic flora in the bodies of the animals is improved, the immunity of the animals is improved, the health level of the animals is improved, and the effect of the biological fermentation feed is further improved. The biological metabolites generated by aerobic and facultative fermentation decompose harmful substances and anti-nutritional substances in the raw materials in a facultative fermentation machine; meanwhile, the protein and the starch are decomposed into small peptide, amino acid and small molecular polysaccharide, so that animal digestion is facilitated, and the digestibility and the animal feed utilization rate are improved. The material viscosity after facultative fermentation is very high, is difficult to convey, is directly discharged on a facultative material belt conveyor, and after being discharged from the discharge end of the facultative material belt conveyor, the material is scattered by a facultative material scattering machine and slides downwards from a discharge pipe of a fermentation section. A snakelike hot water circulating pipe is arranged in the hot water heating system, hot water enters from a hot water circulating water inlet pipe and flows out from a hot water circulating water outlet pipe. The hot water heating system in the bottom plate is favorable for keeping the temperature of the facultative fermentation bed, and the hot water heating system in the top plate can prevent the formation of top plate condensed water and prevent the top plate condensed water from dripping and bringing mixed bacteria and polluting materials.

As another improvement of the invention, the outlet of the aerobic discharging chute is connected with the inlet of an aerobic material conveyor, the outlet of the aerobic material conveyor is connected with an aerobic material air-conveying pipe through an air shutter, the outlet of the aerobic material air-conveying pipe and the outlet of an anaerobic bacteria liquid pipe are connected with the inlet of an anaerobic liquid mixer through a drag chain frame, and the anaerobic liquid mixer is positioned on a common distribution rail above the feed inlets of all anaerobic fermentation tanks, can translate along the common distribution rail and distribute materials to the feed inlets of all anaerobic fermentation tanks; the discharge ports of the anaerobic fermentation tanks are respectively connected with an anaerobic material belt conveyor through anaerobic discharge screws, and the discharge ends of the anaerobic material belt conveyor are connected with a discharge pipe of the fermentation section. The material after aerobic fermentation enters an aerobic material conveyor, then enters an inlet of an anaerobic liquid material mixer through an aerobic material air conveying pipe, and anaerobic bacteria liquid discharged from an anaerobic bacteria liquid pipe also enters the inlet of the anaerobic liquid material mixer. In the anaerobic liquid material mixer, the materials and anaerobic bacteria liquid are evenly mixed and then discharged, and then enter the feed inlet of the anaerobic fermentation tank. The anaerobic liquid material mixer moves along the shared distribution track, so that the anaerobic liquid material mixer can feed materials to a plurality of anaerobic fermentation tanks, and the number of the mixers is reduced. After anaerobic fermentation, lactobacillus, saccharomycetes, bacillus and the like generate biological metabolites and induce the fragrance and aroma of animal ingestion, so that the probiotics and the biological metabolite types generated by fermentation are increased, the probiotics are ingested by the animal, the probiotic flora in the body of the animal is improved, the immunity of the animal is improved, the health level of the animal is improved, and the effect of the biological fermentation feed is further improved. The biological metabolites generated by the aerobic and anaerobic fermentation decompose harmful substances and anti-nutritional substances in the raw materials in an anaerobic fermentation tank; meanwhile, the protein and the starch are decomposed into small peptide, amino acid and small molecular polysaccharide, so that animal digestion is facilitated, and the digestibility and the animal feed utilization rate are improved. The anaerobic fermentation material is discharged on an anaerobic material belt conveyor through an anaerobic discharge screw, and then discharged from a discharge end of the anaerobic material belt conveyor and slides downwards from a discharge pipe of a fermentation section.

As a further improvement of the invention, the outlet of the discharging pipe of the fermentation section is connected with the inlet of a dry-wet material mixer, the outlet of the dry-wet material mixer is connected with a mixture air supply pipeline through an air shutoff device, the outlet of the mixture air supply pipeline is connected with a feed inlet at the upper part of an active drying tower, and a hot air inlet at the lower part of the active drying tower is connected with an air outlet of a heater of the drying tower; a discharge hole at the bottom of the active drying tower is connected with a primary drying chute; the exhaust port at the top of the active drying tower is connected with the air inlet of the saxophone, the discharge port at the bottom of the saxophone is connected with the primary drying chute, the exhaust port at the top of the saxophone is connected with the washing air inlet pipe through the saxophone exhaust fan, the washing air inlet pipe is connected with the inlet at the lower part of the washing tower, the outlet at the bottom of the washing tower is connected with the inlet of the circulating pump of the washing tower, the outlet of the circulating pump of the washing tower is connected with the spray pipe at the upper part of the washing tower through the circulating pipe of the washing tower, and the exhaust port at the top of the washing tower is communicated with the atmosphere. The sticky wet materials discharged from the discharging pipe of the fermentation section are difficult to convey and easy to bond, and enter a dry wet material mixer together with a certain proportion to mix, so that the moisture content is reduced, the conveyability is improved, the moisture content after uniform mixing is 25-30%, and the sticky wet materials enter a mixture air conveying pipeline, are conveyed into the upper layer of the active drying tower by the mixture air conveying pipeline and flow from top to bottom; the air is heated by a heater of the drying tower to become hot air, the hot air enters the drying tower from the lower part of the active drying tower and flows upwards in a reverse direction with the materials, the water content of the materials dried by the active drying tower is reduced to 18-25%, and the materials are discharged into a primary drying chute from a discharge hole at the bottom of the active drying tower. The active drying tower adopts countercurrent flash evaporation drying, and can use air with higher temperature for drying due to high drying moisture, and can simultaneously maintain the microbial activity and biological metabolite activity of the fermentation material. Because the air with higher temperature is adopted, two layers of drying beds are arranged in the active drying tower, the energy is utilized in a cascade way, and the total energy consumption is reduced. The tail gas containing fine materials discharged from the top of the active drying tower enters an air inlet of the saxophone, the fine materials are settled at the bottom of the saxophone through centrifugal separation in the saxophone, and the fine materials are discharged into a primary drying chute from a discharge port at the bottom of the saxophone through an air seal device, so that the fine materials are recovered. The cleaner tail gas discharged from the top exhaust port of the salon enters the washing air inlet pipe, enters the lower inlet of the washing tower from the washing air inlet pipe, flows upwards in the washing tower, is pumped out by the circulating pump of the washing tower, enters the spray pipe through the circulating pipe of the washing tower to be sprayed downwards uniformly, washes the tail gas, discharges the clean tail gas from the top exhaust port of the washing tower, and greatly improves the environmental benefit.

As a further improvement of the invention, the primary drying chute is connected with the inlet of the pneumatic drying feeder, the outlet of the pneumatic drying feeder is connected with the inlet of the air supply pipeline of the pneumatic dryer, the inlet of the air supply pipeline of the pneumatic dryer is also connected with the outlet of the scattering device, and the inlet at the lower end of the scattering device is connected with the air outlet of the pneumatic drying heater; the air supply pipeline outlet of the air flow dryer is connected with the air inlet of the large cloth bag filter, the bottom of the large cloth bag filter is provided with two dry material outlets, one of the two dry material outlets is connected with the inlet of the dry and wet material mixer through a dry material return chute, the other dry material outlet is connected with the inlet of the roller cooler through a secondary drying chute, and the outlet of the roller cooler is connected with the product discharging pipe; the exhaust port at the upper part of the big cloth bag filter is connected with the big cloth bag filter exhaust fan, and the outlet of the big cloth bag filter exhaust fan is connected with the washing air inlet pipe; an air outlet at the top of the roller cooler is connected with an air inlet of the small cloth bag filter, an air outlet at the top of the small cloth bag filter is connected with a small cloth bag filter exhaust fan, and an outlet of the small cloth bag filter exhaust fan is connected with the washing air inlet pipe. The primary-dried material enters an air flow drying feeder from a primary drying chute, enters an air supply pipeline inlet of an air flow dryer from the air flow drying feeder, air is heated by an air flow drying heater to become hot air, the hot air enters from the lower part of a scattering device, the granular material is pushed by the hot air to flow upwards along an air flow drying hot air pipe, the agglomerated material falls down and is broken up by the scattering device, the hot air flows upwards along with the hot air, the hot air exchanges heat with the material in the flowing process, the water content of the material subjected to secondary drying is reduced to 10-12%, the material enters a big cloth bag filter for separation, the material is discharged from a dry material outlet at the bottom of the big cloth bag filter, and a small part of dry material returns to a dry and wet material mixer to be mixed with the sticky and wet material through a dry material return chute, so that the conveying performance of the material is improved, and the adhesion along the way is prevented; most of the dry materials enter a roller cooler for cooling, and the cooled finished products are discharged through a product discharging pipe and packaged. The secondary dry tail gas filtered by the big cloth bag filter is pumped out from an exhaust port at the upper part of the big cloth bag filter by an exhaust fan of the big cloth bag filter and is sent into a washing tower for washing by a washing air inlet pipe. Cooling air tail gas discharged from the top of the roller cooler enters a small cloth bag filter for separation, fine particles also enter a product discharging pipe, and the tail gas is pumped out by an exhaust fan of the small cloth bag filter and is also sent into a washing tower for washing by a washing air inlet pipe.

As a further improvement of the invention, the drying tower heater and the airflow drying heater are sequentially provided with a low temperature heating unit, a medium temperature heating unit and a high temperature heating unit along the air flowing direction, a medium inlet at the upper part of the high temperature heating unit is connected with a raw steam pipe, a medium outlet at the lower part of the high temperature heating unit is connected with a medium inlet at the lower part of the medium temperature heating unit, and a medium outlet at the upper part of the medium temperature heating unit is connected with a condensate pipe; the medium inlet of the low-temperature heating unit is connected with the cooking tail gas discharge pipe, the medium outlet of the low-temperature heating unit is connected with the middle inlet of the hydraulic jet pump through the tail gas pipe of the drying section, the outlet of the hydraulic jet pump is aligned to the upper port of the water distributor, the water distribution outlet of the water distributor is positioned above the upper port of the water tank, the bottom outlet of the water tank is connected with the inlet of the water tank circulating pump, and the outlet of the water tank circulating pump is connected with the jet water inlet of the hydraulic jet pump. The temperature of the air gradually increases as it flows forward along the low, medium and high temperature heating units in the drying tower heater and the air stream drying heater. The raw steam enters a high-temperature heating unit to heat hot air with the highest temperature, the steam releasing the latent heat of vaporization is changed into condensed water to flow out of the high-temperature heating unit, then enters a medium-temperature heating unit to heat hot air with the higher temperature, and the condensed water is discharged from a condensed water pipe after the sensible heat is released. The tail gas which is discharged by the cooking tail gas discharge pipe and is provided with 70 ℃ steam enters the low-temperature heating unit to heat the cold air which just enters, so that the tail gas of the cooking tank is recycled in a second stage, and the steam consumption of the drying section is saved; the water tank circulating pump pumps water in the water tank to the inlet of the hydraulic jet pump, and the suction force generated by the throat part of the hydraulic jet pump pumps tail gas of the drying section, and the cooking tail gas discharge pipe is kept at negative pressure. After the cooking is finished, the temperature of the raw materials in the cooking pot can be reduced from 120-130 ℃ to 80 ℃ under the negative pressure effect of a cooking tail gas discharge pipe, so that the cooling load of the air cooler is greatly reduced; the water flowing out of the hydraulic jet pump is sprayed into the water distributor for cooling, a plurality of water distribution holes are formed at the bottom of the water distributor to form a plurality of water flows to spray out, and the water flows back to the water tank for continuous circulation while spraying and radiating with air. The tail gas temperature of the drying section is reduced to 40-50 ℃ after heat is continuously recovered, the heat radiating area of hot water flowing out of the hydraulic jet pump is enlarged through the water distributor, and the hot water is naturally cooled by air, so that other heat radiating facilities are not needed.

Drawings

The invention will now be described in further detail with reference to the drawings and the detailed description, which are provided for reference and illustration only and are not intended to limit the invention.

FIG. 1 is a flow chart of the compounding section of the present invention.

FIG. 2 is a flow chart of a single aerobic fermentation in an embodiment of the fermentation section of the present invention.

FIG. 3 is a flow chart of two aerobic fermentation machines in the fermentation section embodiment of the invention.

FIG. 4 is a flow chart of a fermentation process employing facultative fermentation in accordance with a third embodiment of the present invention.

FIG. 5 is a flow chart of the anaerobic fermentation employed in the fourth embodiment of the fermentation section of the present invention.

FIG. 6 is a flow chart of the drying section in the present invention.

In the figure: 1. a charging hopper; 2. a raw material hoister; 3. a proportioning bin; 3a, batching spiral; 4. a batching scale; 5. a raw material buffer bin; 6. a feeding elevator; 7. a feeding conveyor; 8. a cooking pot; 9. a digestion material buffer bin; 10. an air cooling machine; 11. a hot water tank; 12. a waste heat absorption tower; 13. a hydraulic jet pump; 14. a water distributor; 15. a water tank; 16. an aerobic bacteria powder bin; 17. a liquid material mixing conveyor; 18. a fungus powder material mixer; 19. an aerobic fermentation bed; 19a, an air inlet of the aerobic layer; 19b, an aerobic layer exhaust door; 19c, an aerobic fermentation heat exchanger; 19d, an aerobic fermentation fan; 19e, atomizing spray heads; 19f, an aerobic layer return air regulating door; 19g, an aerobic layer fresh air regulating door; 20. an aerobic material conveyor; 21. a drag chain frame; 22. a facultative liquid mixer; 23. a facultative fermentation machine; 24. a facultative material belt conveyor; 25. a facultative material scattering machine; 26. a dry and wet material mixer; 27. a live drying tower; 28. saxophone; 29. a washing tower; 30. an air flow dryer; 30a, an air drying feeder; 31. a scattering device; 32. a large cloth bag filter; 33. a drum cooler; 34. a small cloth bag filter; 35. an anaerobic liquid material mixer; 36. an anaerobic fermentation tank; 37. anaerobic discharging screw; 38. an anaerobic material belt conveyor; B1. a hot water pump; B2. a washing circulation pump; B3. a water tank circulation pump; B4. a scrubber circulation pump; v1. a feed control valve; v2, a steam exhaust valve; v3. a cooking exhaust bypass valve; l1, a Roots blower I; l2, a Roots blower II; l3. Roots blower III; F1. a big cloth bag filter exhaust fan; F2. a small cloth bag filter exhaust fan; F3. a saxophone exhaust fan; H1. a drying tower heater; H2. an air flow drying heater; G1. a steam generating pipe; G2. a clear water pipe; G3. a hot water pipe; G4. a steam exhaust pipe for cooking; G5. a water outlet pipe of the absorption tower; G6. a spray water supply pipe; G7. a cooking tail gas discharge pipe; G8. wet material wind delivery pipe; G9. a safety valve exhaust pipe; G10. tail gas pipe of drying section; G11. an aerobic bacteria liquid pipe; G12. a humidifying pipe; G13. an aerobic discharging chute; G14. a condenser water pipe; G15. a cooling water inlet pipe; G16. a cooling water outlet pipe; G17. a hot water circulation inlet pipe; G18. a hot water circulation outlet pipe; G19. a facultative anaerobe liquid tube; G20. an aerobic material air conveying pipe; G21. a discharge pipe of the fermentation section; G22. a mixture air supply pipeline; G23. a first-stage drying chute; G24. washing an air inlet pipe; G25. a scrubber circulation tube; G26. a dry material reflux chute; G27. a secondary drying chute; G28. a product discharging pipe; G29. anaerobic bacteria liquid pipe.

Detailed Description

As shown in FIG. 1, the biological feed additive production system with digestion fermentation of the invention comprises a batching device and an aerobic fermentation machine 23. The batching device comprises a feeding hopper 1 and a raw material hoister 2, wherein the bottom outlet of the feeding hopper 1 is connected with the lower end inlet of the raw material hoister 2, the upper end outlet of the raw material hoister 2 is connected with the upper end inlets of a plurality of batching bins 3, the bottom of each batching bin 3 is respectively provided with a batching spiral 3a, the outlet of each batching spiral 3a is respectively connected with the inlet of a batching scale 4, the outlet of the batching scale 4 is connected with the inlet of a raw material buffer bin 5, the feeding spiral outlet of the bottom of the raw material buffer bin 5 is connected with the inlet of a feeding hoister 6, the outlet of the feeding hoister 6 is connected with the inlet of a feeding conveyor 7, the outlet of the feeding conveyor 7 is respectively connected with the inlet of each digestion tank 8 through a feeding control valve V1, the outlet of each digestion tank 8 is respectively connected with the inlet of a digestion buffer bin 9, the steam inlet of each digestion tank 8 is respectively connected with a raw steam pipe G1, the hot water inlet of each digestion tank 8 is respectively connected with a hot water pipe G3, the feeding spiral outlet at the bottom of each digestion buffer bin 9 is respectively connected with the inlet of an air cooler 10, the outlet of the air cooler 10 is respectively connected with the inlet of a wet pipe G8 through a wet pipe and the air blower fan L of the wet pipe L8.

Various raw materials can be poured into the charging hopper 1 respectively, lifted to a high position by the raw material lifting machine 2 and then enter the corresponding proportioning bins 3 for storage, and when proportioning, the raw materials are sequentially fed into the proportioning scale 4 by the corresponding proportioning screw 3a for weighing and metering, and the metered raw materials are fed into the raw material buffer bin 5 for temporary storage and mixing, and the mixed proportioning ensures that the nutrition of the fermented product is balanced. After all the raw materials are weighed, the mixed raw materials enter a feeding lifting machine 6 through a feeding screw at the bottom of a raw material buffer bin 5, the lifted mixed raw materials are sent into each steaming and boiling tank 8 through a feeding conveyor 7, raw steam enters a steam inlet of each steaming and boiling tank 8 from a raw steam pipe G1, and hot water enters a hot water inlet of each steaming and boiling tank 8 from a hot water pipe G3, so that the mixed raw materials in the steaming and boiling tanks 8 are heated to 120-130 ℃ for steaming and boiling sterilization, microbial pollution caused by the raw materials in the aerobic fermentation process is reduced, and protein, starch and the like in the materials are denatured, so that the aerobic fermentation is facilitated; the mixture after cooking sterilization is discharged into a cooking material buffer bin 9, and then fed into an air cooling machine 10 for cooling through a feeding spiral outlet at the bottom of each cooking material buffer bin 9, and the cooled ingredients enter a wet material air supply pipeline G8 through a cooking discharging air shut-off device, and are fed into a next working procedure by compressed air blown out by a Roots blower L1.

The steam exhaust ports of the cooking tanks 8 are connected with a cooking steam exhaust pipe G4, the outlet of the cooking steam exhaust pipe G4 is connected with the lower part of a waste heat absorption tower 12 through a cooking steam exhaust valve V2, the bottom outlet of the waste heat absorption tower 12 is connected with the hot water inlet of a hot water tank 11 through an absorption tower water outlet pipe G5, the bottom of the hot water tank 11 is connected with the inlet of a washing circulating pump B2, the outlet of the washing circulating pump B2 is connected with a spray pipe at the upper part of the waste heat absorption tower 12 through a spray water supply pipe G6, and the air exhaust port at the top of the waste heat absorption tower 12 is connected with a cooking tail gas discharge pipe G7; the bottom outlet of the hot water tank 11 is also connected with the inlet of a hot water pump B1, and the outlet of the hot water pump B1 is connected with a hot water pipe G3. The safety valve outlet of each cooking pot 8 is connected with a safety valve steam exhaust pipe G9.

Steam generated by cooking raw materials is discharged from a cooking steam discharge pipe G4, enters a liquid phase at the lower part of the waste heat absorption tower 12 through a cooking steam discharge valve V2, and heats hot water at the bottom of the waste heat absorption tower 12 to form primary recovery of heat of cooking steam; the fine materials flying out along with the steam are mostly captured by hot water at the bottom of the waste heat absorption tower 12, the heated hot water enters the hot water tank 11 from the water outlet pipe G5 of the waste heat absorption tower, the hot water in the hot water tank 11 is sent to a spray pipe at the upper part of the waste heat absorption tower 12 through a washing circulating pump B2 and a spray water supply pipe G6 for downward spraying, so that a small amount of fine materials entering the gas phase of the waste heat absorption tower 12 are fully complemented, and clean tail gas of the absorption tower enters a cooking tail gas discharge pipe G7 from the top of the waste heat absorption tower 12 at the temperature of about 70 ℃; the hot water in the hot water tank 11 and the complemented fine materials are sent into the cooking tank 8 by the hot water pump B1 through the hot water pipe G3, so that the fine materials are completely recovered, and most of steam heat generated by cooking is recovered and utilized by the cooking tank 8. By adding the hot water tank 11 and the waste heat absorption tower 12, hot water is prepared by waste heat, hot water is provided for the cooking tank 8, and steam consumption is reduced.

The bottom of the hot water tank 11 is provided with a steam heating pipe, and the inlet of the steam heating pipe is connected with a raw steam pipe G1; the water supplementing port of the hot water tank 11 is connected with a clean water pipe G2; the cooking exhaust pipe G4 is also connected with a cooking tail gas exhaust pipe G7 through a cooking exhaust bypass valve V3. When the water temperature in the hot water tank 11 is low, fresh steam may be supplemented to raise the water temperature to 70 ℃. The steam generated by cooking can be directly sent into the cooking tail gas discharge pipe G7 by opening the cooking steam discharge bypass valve V3.

As shown in fig. 2 and 3, the outlet of the wet material air supply pipeline G8 and the aerobic bacteria liquid pipe G11 are connected into the feeding end of the liquid material mixing conveyor 17, the upper part of the discharging end of the liquid material mixing conveyor 17 is connected with the bottom outlet of the aerobic bacteria powder bin 16, and the lower part of the discharging end of the liquid material mixing conveyor 17 is connected with the feeding inlet of the bacteria powder material mixer 18; the discharge port of the fungus powder material mixer 18 is connected with an aerobic central pipe of the aerobic fermentation machine, the aerobic central pipe is communicated with each layer of aerobic fermentation bed 19 of the aerobic fermentation machine, and the lower port of the aerobic central pipe is connected with an aerobic discharge chute G13.

The materials after being steamed and sterilized enter the inlet end of the liquid-material mixing conveyor 17 from the wet material air supply pipeline G8 and the material distributing tee joint, the aerobic bacteria liquid water flows out from the aerobic bacteria liquid pipe G11 and also enters the inlet end of the liquid-material mixing conveyor 17, the materials are fully mixed with the aerobic bacteria liquid while advancing along the liquid-material mixing conveyor 17, and cold water can be injected through the aerobic layer liquid injection pipe to ensure that the moisture content of the materials is about 45%; the aerobic bacteria powder is discharged from an aerobic bacteria powder bin 16 under the action of a bacteria powder feeding auger, enters the outlet end of a liquid-material mixing conveyor 17, then enters a bacteria powder material mixing machine 18 together with the materials, enters an aerobic central pipe of the aerobic fermentation machine after being uniformly mixed with the materials, and enters each layer of aerobic fermentation bed 19 through the aerobic central pipe.

Hot water at about 70 ℃ can be injected into the cold material through the aerobic bacteria liquid pipe G11, the hot water is firstly and uniformly mixed with the material in the liquid material mixing conveyor 17 to raise the temperature of the material to about 35 ℃ and then mixed with the aerobic bacteria powder; avoiding the scalding and killing of the aerobic bacteria caused by the direct contact of the hot water and the aerobic bacteria powder. The material after aerobic fermentation enters an aerobic discharging chute G13 from the lower end of an aerobic central material pipe and is discharged.

The top plate of each aerobic fermentation layer is respectively provided with a hot water heating system, the top of each fermentation layer is provided with a circulating water heating function, hot water enters from the hot water circulating water inlet pipe G17 and flows out from the hot water circulating water outlet pipe G18, so that the ceiling is kept above the dew point temperature, the formation of condensed water on the top plate can be prevented, and the condensed water on the top plate is prevented from dripping and bringing mixed bacteria to pollute aerobic materials.

An aerobic layer air outlet is arranged on one side of the tower wall above each layer of aerobic fermentation bed 19 and is provided with an aerobic layer air exhaust door 19b, and an aerobic layer air return opening is arranged on the other side of the tower wall above each layer of aerobic fermentation bed 19 and is provided with an aerobic layer air return regulating door 19f; an aerobic layer air inlet 19a is formed in the tower wall below each aerobic fermentation bed 19, an atomization nozzle 19e is arranged at the inner side of each aerobic layer air inlet 19a, and an inlet of each atomization nozzle 19e is connected with a humidifying pipeline G12; the outer end of the aerobic layer air inlet 19a is connected with the air outlet of the aerobic fermentation heat exchanger 19c, the air inlet of the aerobic fermentation heat exchanger 19c is connected with the air outlet of the aerobic fermentation fan 19d, the air inlet of the aerobic fermentation fan 19d is respectively connected with an aerobic fermentation return air pipe and an aerobic fermentation fresh air pipe through a three-way pipeline, the aerobic fermentation return air pipe is connected with the outer port of the aerobic layer return air regulating door 19f, and the aerobic fermentation fresh air pipe is communicated with the atmosphere through the aerobic layer fresh air regulating door 19 g.

Air is fed into the lower part of the aerobic fermentation bed 19 through an aerobic layer air inlet 19a by an aerobic fermentation fan 19d, the temperature of the air is regulated by an aerobic fermentation heat exchanger 19c, the air with proper temperature is uniformly blown upwards through holes of the aerobic fermentation bed 19 to supply oxygen to materials, one part of the air passing through the material layer is discharged from an aerobic layer air exhaust door 19b, the other part of the air is discharged through an aerobic layer return air regulating door 19f, and the air and fresh air entering from an aerobic layer fresh air regulating door 19g enter an inlet of the aerobic fermentation fan 19d together, so that the opening degree of the aerobic layer return air regulating door 19f is changed, and the return air quantity can be regulated; the fresh air quantity can be regulated by changing the opening degree of the fresh air regulating door 19g of the aerobic layer. The fresh air and the return air are mixed, so that the oxygen content of the aerobic layer can be ensured, and part of heat can be recovered to save energy. The atomizing nozzle 19e can humidify along with fresh air, so that the relative humidity in the fermentation tower is kept above 90%, and the microbial growth is facilitated.

The upper end of the aerobic fermentation heat exchanger 19c is connected with a steam valve and a cooling water outlet valve respectively, the inlet of the steam valve is connected with a raw steam pipe G1, and the outlet of the cooling water outlet valve is connected with a cooling water outlet pipe G16; the lower end of the aerobic fermentation heat exchanger 19c is connected with a condensate drain valve and a cooling water inlet valve respectively, the outlet of the condensate drain valve is connected with a condensate pipe G14, and the inlet of the cooling water inlet valve is connected with a cooling water inlet pipe G15.

When the air in the aerobic layer needs to be heated, a steam valve and a condensate drain valve are simultaneously opened, a cooling water inlet valve and a cooling water outlet valve are closed, steam enters the aerobic fermentation heat exchanger 19c, and the air is heated to become condensate to be drained from the condensate drain valve. When the air of the aerobic layer needs to be cooled, a cooling water inlet valve and a cooling water outlet valve are simultaneously opened, a steam valve and a condensate drain valve are closed, cooling water enters the aerobic fermentation heat exchanger 19c, and the cooling air is discharged from the cooling water outlet valve.

As shown in fig. 4, after aerobic fermentation, facultative fermentation can be performed, the outlet of the aerobic discharging chute G13 is connected with the inlet of the aerobic material conveyor 20, the outlet of the aerobic material conveyor 20 is connected with the aerobic material air-conveying pipe G20 through an air shutter, the air inlet of the aerobic material air-conveying pipe G20 is connected with the outlet of the roots blower two L2, the outlet of the aerobic material air-conveying pipe G20 and the outlet of the facultative bacteria liquid pipe G19 are connected into the inlet of the facultative bacteria liquid mixer 22 through a drag chain frame 21, and the facultative bacteria liquid mixer 22 is positioned on a common distribution rail above the feed inlets of all facultative bacteria fermenters 23, can translate along the common distribution rail and distribute materials to the feed inlets of all facultative bacteria fermenters 23; the discharge port of each facultative fermenter 23 is connected with a facultative material belt conveyor 24, the discharge end of the facultative material belt conveyor 24 is connected with the inlet of a facultative material scattering machine 25, and the outlet of the facultative material scattering machine 25 is connected with a discharge pipe G21 of the fermenting section.

The aerobiotic fermented material enters the aerobiotic material conveyor 20, then enters the inlet of the facultative liquid material mixer 22 through the aerobiotic material air-conveying pipe G20, and the facultative bacteria liquid discharged from the facultative bacteria liquid pipe G19 also enters the inlet of the facultative liquid material mixer 22. In the facultative anaerobism liquid material mixer 22, the material and the facultative anaerobism liquid are evenly mixed and discharged, and then enter the feed inlet of the facultative anaerobism fermentation machine 23. The facultative liquid mixer 22 moves along the common distribution rail, and can feed the facultative fermenter 23 to reduce the number of mixers. The materials entering the facultative fermenter 23 are evenly distributed on the facultative fermentation bed, and after facultative fermentation, the types of probiotics and biological metabolites generated by fermentation are increased, and the effect of the biological fermentation feed is further improved. The facultative material after fermentation has high viscosity, is difficult to convey, is directly discharged on the facultative material belt conveyor 24, is discharged from the discharge end of the facultative material belt conveyor 24, and is scattered by the facultative material scattering machine 25, and slides downwards from the discharge pipe G21 of the fermentation section.

Aerobic fermentation is used first to make microbe (mainly mould) produce great amount of biological metabolite; and then facultative fermentation is used to enable lactobacillus, saccharomycetes, bacillus and the like to generate biological metabolites and induce the fragrance and aroma of animal feeding, beneficial bacteria are fed by animals, the probiotic flora in the bodies of the animals is improved, the immunity of the animals is improved, and the health level of the animals is improved. The biological metabolites produced by the aerobic and facultative fermentation decompose harmful substances and anti-nutritional substances in the raw materials in the facultative fermenter 23; meanwhile, the protein and the starch are decomposed into small peptide, amino acid and small molecular polysaccharide, so that animal digestion is facilitated, and the digestibility and the animal feed utilization rate are improved.

The top plate and the bottom plate of the facultative fermenter 23 are respectively provided with a hot water heating system, a serpentine hot water circulating pipe is arranged in the hot water heating system, and hot water enters from the hot water circulating inlet pipe G17 and flows out from the hot water circulating outlet pipe G18. The hot water heating system in the bottom plate is favorable for keeping the temperature of the facultative fermentation bed, and the hot water heating system in the top plate can prevent the formation of top plate condensed water and prevent the top plate condensed water from dripping and bringing mixed bacteria and polluting facultative materials.

Anaerobic fermentation may also be performed after aerobic fermentation, as shown in fig. 5. The outlet of the aerobic discharging chute G13 is connected with the inlet of the aerobic material conveyor 20, the outlet of the aerobic material conveyor 20 is connected with the aerobic material air conveying pipe G20 through an air seal, the air inlet of the aerobic material air conveying pipe G20 is connected with the outlet of the Roots blower II L2, the outlet of the aerobic material air conveying pipe G20 and the outlet of the anaerobic bacteria liquid pipe G29 are connected with the inlet of the anaerobic liquid mixer 35 through a drag chain frame, and the anaerobic liquid mixer 35 is positioned on a common distribution rail above the feed inlet of each anaerobic fermentation tank 36 and can translate along the common distribution rail and distribute materials to the feed inlet of each anaerobic fermentation tank 36; the discharge ports of the anaerobic fermentation tanks 36 are respectively connected with an anaerobic material belt conveyor 38 through anaerobic discharge screws 37, and the discharge ends of the anaerobic material belt conveyor 38 are connected with a discharge pipe G21 of the fermentation section.

The material after aerobic fermentation enters the aerobic material conveyor 20, and then enters the inlet of the anaerobic liquid material mixer 35 through the aerobic material air-conveying pipe G20, and the anaerobic liquid discharged from the anaerobic liquid pipe G29 also enters the inlet of the anaerobic liquid material mixer 35. In the anaerobic liquid material mixer 35, the material is uniformly mixed with anaerobic bacteria liquid and discharged, and then enters the feed inlet of the anaerobic fermentation tank 36. The anaerobic liquid mixer 35 moves along a common distribution rail, and can feed a plurality of anaerobic fermentation tanks 36. The anaerobic fermentation material is discharged on the anaerobic material belt conveyor 38, and after being discharged from the discharge end of the anaerobic material belt conveyor 38, the anaerobic material is slid downwards from the discharge pipe G21 of the fermentation section.

As shown in fig. 6, the outlet of the discharging pipe G21 of the fermentation section is connected with the inlet of the dry-wet material mixer 26, the outlet of the dry-wet material mixer 26 is connected with the air supply pipe G22 of the mixture through the air shutoff device, the air inlet of the air supply pipe G22 of the mixture is connected with the air outlet of the three L3 of the Roots blower, the outlet of the air supply pipe G22 of the mixture is connected with the feed inlet at the upper part of the active drying tower 27, the hot air inlet at the lower part of the active drying tower 27 is connected with the air outlet of the drying tower heater H1, and the air inlet of the drying tower heater H1 is communicated with the atmosphere. A discharge hole at the bottom of the active drying tower 27 is connected with a primary drying chute G23; the exhaust port at the top of the active drying tower 27 is connected with the air inlet of a salon 28, the discharge port at the bottom of the salon 28 is connected with a first-stage drying chute G23, the exhaust port at the top of the salon 28 is connected with a washing air inlet pipe G24 through a salon exhaust fan F3, the washing air inlet pipe G24 is connected with the inlet at the lower part of a washing tower 29, the outlet at the bottom of the washing tower 29 is connected with the inlet of a washing tower circulating pump B4, the outlet of the washing tower circulating pump B4 is connected with a spray pipe at the upper part of the washing tower 29 through a washing tower circulating pipe G25, and the exhaust port at the top of the washing tower 29 is communicated with the atmosphere.

The sticky wet materials discharged from the discharging pipe G21 of the fermentation section are difficult to convey and easy to bond, enter a dry and wet material mixer 26 together with a certain proportion to mix, reduce the moisture content, improve the conveyability, and the moisture content after uniform mixing is 25-30%, enter a mixture air supply pipeline G22, are conveyed into the upper layer of an active drying tower 27 by the mixture air supply pipeline G22, and flow from top to bottom; the air is heated by the drying tower heater H1 to become hot air, the hot air enters the drying tower from the lower part of the active drying tower 27 and flows upwards in a reverse direction with the materials, the water content of the materials dried by the active drying tower 27 is reduced to 18-25%, and the materials are discharged into the primary drying chute G23 from a discharge hole at the bottom of the active drying tower 27.

The tail gas containing fine materials discharged from the top of the active drying tower 27 enters the air inlet of the saxophone 28, the fine materials are settled at the bottom of the saxophone 28 after centrifugal separation in the saxophone 28, and the fine materials are discharged into the primary drying chute G23 from the discharge port at the bottom of the saxophone 28 through the air-off device, so that the fine materials are recovered. The cleaner tail gas discharged from the top exhaust port of the salon 28 enters the washing air inlet pipe G24, enters the lower inlet of the washing tower 29 from the washing air inlet pipe G24, the air flow flows upwards in the washing tower 29, the water stored at the bottom of the washing tower 29 is pumped out by the washing tower circulating pump B4, enters the spray pipe through the washing tower circulating pipe G25 to be uniformly sprayed downwards, the tail gas is washed, and the clean tail gas is discharged from the top exhaust port of the washing tower 29.

The primary drying chute G23 is connected with an inlet of the air drying feeder 30a, an outlet of the air drying feeder 30a is connected with an inlet of an air supply pipeline of the air dryer 30, the inlet of the air supply pipeline of the air dryer 30 is also connected with an outlet of the scattering device 31, an inlet at the lower end of the scattering device 31 is connected with an air outlet of the air drying heater H2, and an air inlet of the air drying heater H2 is communicated with the atmosphere; the air supply pipeline outlet of the air flow dryer 30 is connected with the air inlet of the large cloth bag filter 32, the bottom of the large cloth bag filter 32 is provided with two dry material outlets, one of the dry material outlets is connected with the inlet of the dry and wet material mixer 26 through a dry material return chute G26, the other dry material outlet is connected with the inlet of a roller cooler 33 through a secondary drying chute G27, and the outlet of the roller cooler 33 is connected with a product discharging pipe G28.

The primary-dried material enters an air drying feeder 30a from an air drying chute G23, enters an air supply pipeline inlet of an air dryer 30 from the air drying feeder 30a, is heated by an air drying heater H2 to become hot air, the hot air enters from the lower part of a scattering device 31, the granular material is pushed by the hot air to flow upwards along an air drying hot air pipe, the agglomerated material falls down and is broken up by the scattering device 31 and also flows upwards along with the hot air, the hot air exchanges heat and humidity with the material in the flowing process, the water content of the secondary-dried material falls to 10-12%, the material enters a big cloth bag filter 32 for separation, the material is discharged from a dry material outlet at the bottom of the big cloth bag filter 32, and a small part of the dry material returns to the dry and wet material mixer 26 through a dry material return chute G26 for mixing with the sticky material, so that the conveying performance of the material is improved and the adhesion is prevented along the way; most of the dry materials enter a roller cooler 33 for cooling, and the cooled finished products are discharged through a product discharging pipe G28 and packaged.

The exhaust port at the upper part of the big cloth bag filter 32 is connected with a big cloth bag filter exhaust fan F1, and the outlet of the big cloth bag filter exhaust fan F1 is connected with a washing air inlet pipe G24; an air outlet at the top of the roller cooler 33 is connected with an air inlet of the small cloth bag filter 34, an air outlet at the top of the small cloth bag filter 34 is connected with a small cloth bag filter exhaust fan F2, and an outlet of the small cloth bag filter exhaust fan F2 is connected with a washing air inlet pipe G24.

The secondary dry tail gas filtered by the large cloth bag filter 32 is drawn out from the upper exhaust port of the large cloth bag filter 32 by the large cloth bag filter exhaust fan F1 and is fed into the washing tower 29 for washing by the washing air inlet pipe G24. The cooling air exhaust discharged from the top of the drum cooler 33 enters the small cloth bag filter 34 for separation, fine particles also enter the product discharge pipe G28, and the exhaust is extracted through the small cloth bag filter exhaust fan F2 and is also sent into the washing tower 29 for washing through the washing air inlet pipe G24.

The drying tower heater H1 and the air flow drying heater H2 are sequentially provided with low-temperature, medium-temperature and high-temperature heating units along the air flow direction, a medium inlet at the upper part of the high-temperature heating unit is connected with the raw steam pipe G1, a medium outlet at the lower part of the high-temperature heating unit is connected with a medium inlet at the lower part of the medium-temperature heating unit, and a medium outlet at the upper part of the medium-temperature heating unit is connected with the condensate pipe G14; the medium inlet of the low-temperature heating unit is connected with the cooking tail gas discharge pipe G7, the medium outlet of the low-temperature heating unit is connected with the middle inlet of the hydraulic jet pump 13 through the tail gas pipe G10 of the drying section, the outlet of the hydraulic jet pump 13 is aligned with the upper port of the water distributor 14, the water distribution outlet of the water distributor 14 is positioned above the upper port of the water tank 15, the bottom outlet of the water tank 15 is connected with the inlet of the water tank circulating pump B3, and the outlet of the water tank circulating pump B3 is connected with the jet water inlet of the hydraulic jet pump 13.

The temperature of the air gradually increases as it flows forward along the low, medium and high temperature heating units in the drying tower heater H1 and the air stream drying heater H2. The raw steam enters the high-temperature heating unit to heat the hot air with the highest temperature, the steam releasing the latent heat of vaporization is changed into condensed water to flow out of the high-temperature heating unit, then enters the medium-temperature heating unit to heat the hot air with the higher temperature, and the condensed water is discharged from the condensed water pipe G14 after releasing the sensible heat.

The clean tail gas with 70 ℃ steam discharged by the cooking tail gas discharge pipe G7 enters a low-temperature heating unit to heat the cold air just entering, so that the tail gas of the cooking tank 8 is recycled in a second stage, and the steam consumption of a drying section is saved; the water tank circulating pump B3 pumps water in the water tank 15 to the inlet of the hydraulic jet pump 13, the suction force generated by the throat part of the hydraulic jet pump 13 pumps tail gas of the drying section, and the cooking tail gas discharge pipe G7 is kept at negative pressure. After the cooking is finished, the temperature of the raw materials in the cooking tank 8 can be reduced from 120-130 ℃ to 80 ℃ under the negative pressure of the cooking tail gas discharge pipe G7, so that the cooling load of the air cooler 10 is greatly reduced.

The water flowing out of the hydraulic jet pump 13 is sprayed into the water distributor 14 for cooling, a plurality of water distribution holes at the bottom of the water distributor 14 form a plurality of water flows to spray out, and the water falling into the water return tank 15 continuously circulates while spraying and radiating with air in a convection manner. After continuously recovering heat, the temperature of the tail gas of the drying working section is reduced to 40-50 ℃, the heat radiating area of the hot water flowing out of the hydraulic jet pump 13 is enlarged through the water distributor 14, and the hot water is naturally cooled by air, so that other heat radiating facilities are not needed.

The foregoing description is only of a preferred embodiment of the invention and is not intended to limit the scope of the invention. In addition to the above embodiments, other embodiments of the present invention are possible, and all technical solutions formed by equivalent substitution or equivalent transformation are within the scope of the present invention. The technical features of the present invention that are not described may be implemented by or using the prior art, and are not described herein.

Claims

1. The utility model provides a take biological feed additive production system of cooking fermentation, includes dosing unit and good oxygen fermentation machine, its characterized in that: the material proportioning device comprises a plurality of proportioning bins, wherein the bottom of each proportioning bin is respectively provided with a proportioning screw, the outlet of each proportioning screw is respectively connected with the inlet of a proportioning scale, the outlet of each proportioning scale is connected with the inlet of a raw material buffer bin, the outlet of a feeding screw at the bottom of the raw material buffer bin is connected with the inlet of a feeding elevator, the outlet of the feeding elevator is connected with the inlet of a feeding conveyor, the outlets of the feeding conveyor are respectively connected with the feed inlets of each digestion tank through feed control valves, the discharge outlets of each digestion tank are respectively connected with the inlet of a digestion material buffer bin, the steam inlets of each digestion tank are respectively connected with a steam pipe, the hot water inlets of each digestion tank are respectively connected with a hot water pipe, the feed screw outlets at the bottom of each digestion material buffer bin are respectively connected with the feed inlets of an air cooler, and the discharge outlet of the air cooler is connected with a wet material air conveying pipe through a digestion material air-off device;

The outlet of the wet material air supply pipeline and the aerobic bacteria liquid pipe are connected into the feeding end of the liquid material mixing conveyor together, the upper part of the discharging end of the liquid material mixing conveyor is connected with the bottom outlet of the aerobic bacteria powder bin, and the lower part of the discharging end of the liquid material mixing conveyor is connected with the feeding port of the bacteria powder material mixing machine; the discharging port of the fungus powder material mixer is connected with an aerobic central pipe of the aerobic fermentation machine, the aerobic central pipe is communicated with all layers of aerobic fermentation beds of the aerobic fermentation machine, hot water heating systems are respectively arranged in top plates of all the aerobic fermentation layers, and the lower port of the aerobic central pipe is connected with an aerobic discharging chute;

the outlet of the aerobic discharging chute is connected with the inlet of an aerobic material conveyor, the outlet of the aerobic material conveyor is connected with an aerobic material air conveying pipe through an air seal, the outlet of the aerobic material air conveying pipe is connected with the feeding end of facultative fermentation equipment or anaerobic fermentation equipment, and the discharging end of the facultative fermentation equipment or anaerobic fermentation equipment is connected with the discharging pipe of the fermentation section;

the outlet of the discharging pipe of the fermentation working section is connected with the inlet of a dry-wet material mixer, the outlet of the dry-wet material mixer is connected with a mixture air supply pipeline through an air shutoff device, the outlet of the mixture air supply pipeline is connected with a feed inlet at the upper part of an active drying tower, and a hot air inlet at the lower part of the active drying tower is connected with an air outlet of a drying tower heater; a discharge hole at the bottom of the active drying tower is connected with a primary drying chute; the exhaust port at the top of the active drying tower is connected with the air inlet of the saxophone, the discharge port at the bottom of the saxophone is connected with the primary drying chute, the exhaust port at the top of the saxophone is connected with the washing air inlet pipe through the saxophone exhaust fan, the washing air inlet pipe is connected with the inlet at the lower part of the washing tower, the outlet at the bottom of the washing tower is connected with the inlet of the circulating pump of the washing tower, the outlet of the circulating pump of the washing tower is connected with the spray pipe at the upper part of the washing tower through the circulating pipe of the washing tower, and the exhaust port at the top of the washing tower is communicated with the atmosphere.

2. The system for producing a biological feed additive with digestion fermentation according to claim 1, wherein: the steam exhaust ports of the various cooking tanks are connected with a cooking steam exhaust pipe, the outlet of the cooking steam exhaust pipe is connected with the lower part of a waste heat absorption tower through a cooking steam exhaust valve, the outlet of the bottom of the waste heat absorption tower is connected with the hot water inlet of a hot water tank through a water outlet pipe of the absorption tower, the bottom of the hot water tank is connected with the inlet of a washing circulating pump, the outlet of the washing circulating pump is connected with a spray pipe at the upper part of the waste heat absorption tower through a spray water supply pipe, and the air outlet at the top of the waste heat absorption tower is connected with a cooking tail gas discharge pipe; the bottom outlet of the hot water tank is also connected with the inlet of a hot water pump, and the outlet of the hot water pump is connected with the hot water pipe.

3. The steamed and fermented biological feed additive production system according to claim 2, wherein: the bottom of the hot water tank is provided with a steam heating pipe, and an inlet of the steam heating pipe is connected with a raw steam pipe; the water supplementing port of the hot water tank is connected with the clean water pipe; the cooking exhaust pipe is also connected with a cooking tail gas exhaust pipe through a cooking exhaust bypass valve.

4. The system for producing a biological feed additive with digestion fermentation according to claim 1, wherein: an aerobic layer air outlet is arranged on one side of the tower wall above each layer of aerobic fermentation bed and is provided with an aerobic layer air exhaust door, and an aerobic layer air return opening is arranged on the other side of the tower wall above each layer of aerobic fermentation bed and is provided with an aerobic layer air return regulating door; an aerobic layer air inlet is formed in the wall of the tower body below each aerobic fermentation bed, an atomization nozzle is arranged at the inner side of the aerobic layer air inlet, and an inlet of the atomization nozzle is connected with a humidifying pipeline; the outer end of the air inlet of the aerobic layer is connected with the air outlet of the aerobic fermentation heat exchanger, the air inlet of the aerobic fermentation heat exchanger is connected with the air outlet of the aerobic fermentation fan, the air inlet of the aerobic fermentation fan is respectively connected with the aerobic fermentation return air pipe and the aerobic fermentation fresh air pipe through three-way pipes, the aerobic fermentation return air pipe is connected with the outer port of the aerobic layer return air regulating door, and the aerobic fermentation fresh air pipe is communicated with the atmosphere through the aerobic layer fresh air regulating door.

5. The system for producing a biological feed additive with digestion fermentation according to claim 4, wherein: the upper end of the aerobic fermentation heat exchanger is connected with a steam valve and a cooling water outlet valve respectively, the inlet of the steam valve is connected with a raw steam pipe, and the outlet of the cooling water outlet valve is connected with a cooling water outlet pipe; the lower end of the aerobic fermentation heat exchanger is connected with a condensate drain valve and a cooling water inlet valve respectively, an outlet of the condensate drain valve is connected with a condensate pipe, and an inlet of the cooling water inlet valve is connected with a cooling water inlet pipe.

6. The system for producing a biological feed additive with digestion fermentation according to claim 1, wherein: the outlet of the aerobic material air-conveying pipe and the outlet of the facultative bacteria liquid pipe are connected to the inlet of a facultative liquid material mixer through a drag chain frame, the facultative liquid material mixer is positioned on a shared distribution rail above the feed inlets of all facultative fermentation machines, can translate along the shared distribution rail and distribute materials to the feed inlets of all facultative fermentation machines, and hot water heating systems are arranged in the top plate and the bottom plate of each facultative fermentation machine; the discharge ports of the facultative fermentation machines are respectively connected with a facultative material belt conveyor, the discharge ends of the facultative material belt conveyor are connected with the inlet of a facultative material scattering machine, and the outlet of the facultative material scattering machine is connected with the discharge pipe of the fermentation section.

7. The system for producing a biological feed additive with digestion fermentation according to claim 1, wherein: the outlet of the aerobic material air-conveying pipe and the outlet of the anaerobic bacteria liquid pipe are connected to the inlet of an anaerobic liquid mixer through a drag chain frame, and the anaerobic liquid mixer is positioned on a common distribution rail above the feed inlets of all anaerobic fermentation tanks, can translate along the common distribution rail and distribute materials to the feed inlets of all anaerobic fermentation tanks; the discharge ports of the anaerobic fermentation tanks are respectively connected with an anaerobic material belt conveyor through anaerobic discharge screws, and the discharge ends of the anaerobic material belt conveyor are connected with the discharge pipe of the fermentation section.

8. The steamed and fermented biological feed additive production system according to claim 2, wherein: the primary drying chute is connected with an inlet of the air drying feeder, an outlet of the air drying feeder is connected with an inlet of an air supply pipeline of the air dryer, the inlet of the air supply pipeline of the air dryer is also connected with an outlet of the scattering device, and an inlet at the lower end of the scattering device is connected with an air outlet of the air drying heater; the air supply pipeline outlet of the air flow dryer is connected with the air inlet of the large cloth bag filter, the bottom of the large cloth bag filter is provided with two dry material outlets, one of the two dry material outlets is connected with the inlet of the dry and wet material mixer through a dry material return chute, the other dry material outlet is connected with the inlet of the roller cooler through a secondary drying chute, and the outlet of the roller cooler is connected with the product discharging pipe; the exhaust port at the upper part of the big cloth bag filter is connected with the big cloth bag filter exhaust fan, and the outlet of the big cloth bag filter exhaust fan is connected with the washing air inlet pipe; an air outlet at the top of the roller cooler is connected with an air inlet of the small cloth bag filter, an air outlet at the top of the small cloth bag filter is connected with a small cloth bag filter exhaust fan, and an outlet of the small cloth bag filter exhaust fan is connected with the washing air inlet pipe.

9. The system for producing a biological feed additive with digestion fermentation according to claim 8, wherein: the drying tower heater and the airflow drying heater are sequentially provided with a low-temperature heating unit, a medium-temperature heating unit and a high-temperature heating unit along the air flowing direction, a medium inlet at the upper part of the high-temperature heating unit is connected with a steam generating pipe, a medium outlet at the lower part of the high-temperature heating unit is connected with a medium inlet at the lower part of the medium-temperature heating unit, and a medium outlet at the upper part of the medium-temperature heating unit is connected with a condensate pipe; the medium inlet of the low-temperature heating unit is connected with the cooking tail gas discharge pipe, the medium outlet of the low-temperature heating unit is connected with the middle inlet of the hydraulic jet pump through the tail gas pipe of the drying section, the outlet of the hydraulic jet pump is aligned to the upper port of the water distributor, the water distribution outlet of the water distributor is positioned above the upper port of the water tank, the bottom outlet of the water tank is connected with the inlet of the water tank circulating pump, and the outlet of the water tank circulating pump is connected with the jet water inlet of the hydraulic jet pump.