CN110720649A - Feed production system - Google Patents
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- CN110720649A CN110720649A CN201911144323.7A CN201911144323A CN110720649A CN 110720649 A CN110720649 A CN 110720649A CN 201911144323 A CN201911144323 A CN 201911144323A CN 110720649 A CN110720649 A CN 110720649A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 108
- 239000002912 waste gas Substances 0.000 claims abstract description 74
- 238000001816 cooling Methods 0.000 claims abstract description 45
- 238000011084 recovery Methods 0.000 claims abstract description 43
- 238000001035 drying Methods 0.000 claims abstract description 13
- 230000001007 puffing effect Effects 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 54
- 239000007789 gas Substances 0.000 claims description 39
- 238000003860 storage Methods 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000009833 condensation Methods 0.000 claims description 10
- 230000005494 condensation Effects 0.000 claims description 10
- 238000001704 evaporation Methods 0.000 claims description 10
- 230000008020 evaporation Effects 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 8
- 238000000746 purification Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 239000002826 coolant Substances 0.000 claims description 5
- 238000012545 processing Methods 0.000 description 8
- 239000000428 dust Substances 0.000 description 7
- 239000003507 refrigerant Substances 0.000 description 6
- 239000002699 waste material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 244000144972 livestock Species 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 235000013594 poultry meat Nutrition 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 238000010977 unit operation Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
- A23N17/00—Apparatus specially adapted for preparing animal feeding-stuffs
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
- A23N17/00—Apparatus specially adapted for preparing animal feeding-stuffs
- A23N17/004—Apparatus specially adapted for preparing animal feeding-stuffs for treating by application of heat, e.g. by means of potato cookers
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
- A23N17/00—Apparatus specially adapted for preparing animal feeding-stuffs
- A23N17/005—Apparatus specially adapted for preparing animal feeding-stuffs for shaping by moulding, extrusion, pressing, e.g. pellet-mills
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
- F28D21/001—Recuperative heat exchangers the heat being recuperated from exhaust gases for thermal power plants or industrial processes
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a feed production system, which comprises a coarse crushing production unit, an ultrafine crushing production unit, a puffing or granulating unit, a drying unit and a cooling unit, wherein air outlets of all the units are connected with a temperature-control heat energy recovery unit, and the temperature-control heat energy recovery unit is used for recovering heat energy of waste gas generated in the production process into the feed production system, so that the energy wasted in the production process is recycled, and the circular treatment and zero-emission production are realized.
Description
Technical Field
The invention relates to the technical field of feed processing, in particular to a feed production system.
Background
Along with the development of economy in China, the living standard of residents is continuously improved, and the residents have greater and greater demands on livestock and poultry meat products, so that the rapid development of livestock and poultry breeding industry is brought, and the prosperity of the feed industry is correspondingly promoted.
However, in the production and manufacturing process of the existing pellet feed, a large amount of fuel is consumed, a large amount of high-temperature waste gas is generated, a large amount of waste gas generated in the production process of the feed is exhausted outdoors through the air outlet and the exhaust hole, heat energy is discharged along with the waste gas, the waste gas is not recycled, meanwhile, the distilled feed needs to be heated and dried by the heat energy, kinetic energy is provided for feed production equipment, a large amount of energy is wasted, resource waste is caused, the waste gas generated at high temperature is directly discharged, and environmental pollution is also caused.
Disclosure of Invention
The embodiment of the invention aims to: provided is a feed production system capable of reducing waste gas emission and energy waste in feed production.
In order to achieve the purpose, the invention adopts the following technical scheme:
providing a feed production system, which comprises a coarse crushing production unit, an ultrafine crushing production unit, a puffing or granulating unit, a drying unit and a cooling unit which are sequentially arranged along a production process, wherein air outlets of the coarse crushing production unit, and/or the ultrafine crushing production unit, and/or the puffing or granulating unit, and/or the drying unit, and/or the cooling unit are connected with a temperature-control heat energy recovery unit, and the temperature-control heat energy recovery unit is used for recovering heat energy of waste gas generated in the production process of the feed production system to the feed production system;
accuse temperature heat recovery unit includes heat exchange device and heat recovery unit, heat exchange device's air inlet with the air exit is connected, heat exchange device's gas outlet with coarse crushing production unit, and/or super little crushing production unit, and/or expand or pelletize the unit, and/or drying unit, and/or the air intake connection of cooling unit, heat recovery device with heat exchange device connects, is used for with heat exchange device's cooling medium's heat recovery extremely the feed production system.
As a preferred technical scheme of the present invention, the heat exchange device includes an evaporator and a condenser, the evaporator includes a waste gas inlet, a waste gas outlet and an evaporation pipe, the condenser includes a cooling inlet, a cooling outlet and a condensation pipe, the waste gas inlet is communicated with the air outlet, the waste gas outlet is communicated with the air inlet, the cooling inlet and the cooling outlet are respectively connected with the heat energy recovery device, and the evaporation pipe and the condensation pipe are sequentially connected end to end.
As a preferable aspect of the present invention, a compressor and an expansion valve are respectively provided in a connection circuit between the evaporation pipe and the condensation pipe.
As a preferable technical scheme of the invention, the heat exchange device comprises a heat exchanger and a cooling tower, the heat exchanger comprises a waste gas inlet, a waste gas outlet and a heat exchange tube, the waste gas inlet is communicated with the air outlet, the waste gas outlet is communicated with the air inlet, the heat exchange tube and the cooling tower are connected into a closed loop through a connecting tube, and a circulating water pump is arranged on the connecting tube.
As a preferable technical scheme of the present invention, the system further comprises a cold water preparation device, wherein the cold water preparation device comprises a cold water unit and a chilled water storage tank, the cold water unit is connected with the chilled water storage tank and is used for preparing cold water into the chilled water storage tank, and the chilled water storage tank is communicated with the cooling tower.
As a preferable technical solution of the present invention, the thermal energy recovery device includes a connecting pipeline, a hot water storage tank and a thermal energy conversion module, the hot water storage tank is connected to the cooling outlet of the heat exchange device through the connecting pipeline, and the thermal energy conversion module is connected to the hot water storage tank.
In a preferred embodiment of the present invention, the thermal energy conversion assembly is a high-temperature heat pump, or/and a vacuum flash tank, or/and a steam generator.
As a preferable technical solution of the present invention, a purification and filtration device is disposed between the heat exchange device and the air outlet.
As a preferred technical solution of the present invention, an exhaust gas treatment device is disposed between the heat exchange device and the air inlet.
In a preferred embodiment of the present invention, a condensed water collecting assembly is disposed inside the heat exchanger to collect condensed water condensed from the exhaust gas.
The invention has the beneficial effects that: set up accuse temperature heat recovery unit behind the air exit through each link unit at feed production system, can carry out heat recovery processing with the heat that brings in the waste gas that discharges, and go in sending each unit of feed production system to the heat energy of retrieving again, participate in the operation of each unit of feed production system as auxiliary energy, the demand of other forms such as the electric energy of effectual reduction unit operation in-process to external electric energy and heat energy, thereby the effectual energy resource consumption who reduces feed production system, the energy waste problem that a large amount of heat energy brought has been taken away to waste gas has been solved.
Drawings
The invention is explained in more detail below with reference to the figures and examples.
Fig. 1 is a schematic view of a feed production system according to an embodiment of the present invention.
Fig. 2 is a schematic view of a feed production system according to another embodiment of the present invention.
Fig. 3 is a schematic diagram of a heat exchange device according to an embodiment of the invention.
FIG. 4 is a schematic view of a heat exchange apparatus according to another embodiment of the present invention.
FIG. 5 is a schematic view of a heat exchange device according to still another embodiment of the present invention.
Fig. 6 is a schematic diagram of a temperature-controlled heat energy recovery unit and an exhaust gas recirculation unit according to an embodiment of the invention.
Fig. 7 is a schematic diagram of a temperature-controlled heat energy recovery unit and an exhaust gas recirculation unit according to another embodiment of the invention.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1 to 7, in this embodiment, the feed production system according to the present invention includes a coarse crushing production unit, an ultra-fine crushing production unit, an expanding or granulating unit, a drying unit and a cooling unit, which are sequentially disposed along a production process, wherein air outlets are disposed on the coarse crushing production unit, the ultra-fine crushing production unit, the expanding or granulating unit, the drying unit and/or the cooling unit, and a temperature-controlled heat energy recovery unit is connected behind the air outlets and is configured to recover heat energy of waste gas generated by the feed production system during a production process to the feed production system.
The puffing unit or the granulating unit in the embodiment of the invention can be selected according to the requirements of an actual production system. For example, when producing expanded feed, an expansion unit is selected for production, and when producing granulated feed, a granulation unit is selected for production.
Set up accuse temperature heat recovery unit behind the air exit through each link unit at feed production system, can carry out heat recovery processing with the heat that brings in the waste gas that discharges, and go in sending each unit of feed production system to the heat energy of retrieving again, participate in the operation of each unit of feed production system as auxiliary energy, the demand of other forms such as the electric energy of effectual reduction unit operation in-process to external electric energy and heat energy, thereby the effectual energy resource consumption who reduces feed production system, the energy waste problem that a large amount of heat energy brought has been taken away to waste gas has been solved.
Further, in an optional embodiment, the system further comprises an exhaust gas circulation unit, wherein the exhaust gas circulation unit is used for processing exhaust gas generated in the production process and then sending the processed exhaust gas back to the coarse crushing production unit, the superfine crushing production unit, the puffing or granulating unit, the drying unit and/or the cooling unit.
The exhaust gas circulation unit is arranged at the air outlet of each link unit of the feed production system, so that firstly, the exhaust gas circulation unit can remove substances which can cause environmental pollution, such as particles, harmful gases and the like in the exhaust gas, by treating the exhaust gas, and the particles and the harmful gases in the exhaust gas are prevented from being discharged into the atmosphere to cause environmental pollution; secondly, exhaust gas circulation unit still transports the air intake department of each unit to exhaust gas of air outlet department through the processing again for waste gas circulates in entering into the unit again, has effectually avoided the direct emission of waste gas to the atmosphere, and the effectual cost of handling waste gas that has reduced in the production process, and reduced the processing requirement to exhaust treatment device, further reduction the pollution that causes the environment, improved feed production's operational environment and surrounding environment.
Whole feed production system is with the system production, heat recovery and exhaust gas circulation processing integrated design for feed production system is compacter, and the process layout is more optimized, and the extravagant energy of original production process can recycle, and the waste gas that the production process produced is collected the waste gas of collecting, heat recovery and purification treatment through accuse temperature heat recovery unit and exhaust gas circulation processing unit, then send into feed production system once more among, carry out circulation treatment, has realized zero release production. Compared with the prior art, no special waste gas treatment system is needed, the production construction investment and the operation cost are greatly saved, and the whole waste gas circulation treatment system does not discharge waste gas to the external environment any more, so that zero-emission production is realized, and the system can not pollute the environment.
As shown in fig. 2, 6 to 7, in a specific embodiment, the exhaust gas circulation unit comprises a purification and filtration device, a safety device and an exhaust gas circulation device, one end of the purification and filtration device is connected with the air outlet of the coarse crushing production unit, and/or the ultra-fine crushing production unit, and/or the puffing or granulating unit, and/or the drying unit, and/or the cooling unit, the other end of the purification and filtration device is connected with the safety device, the other end of the safety device is connected with the air inlet of the temperature-controlled heat energy recovery unit, one end of the exhaust gas circulation device is connected with the air outlet of the temperature-controlled heat energy recovery unit, the other end of the exhaust gas circulating device is connected with an air inlet of the coarse grinding production unit, and/or the superfine grinding production unit, and/or the puffing or granulating unit, and/or the drying unit, and/or the cooling unit. The purification and filtration device is arranged, so that dust in the waste gas can be effectively removed, and the content of particulate matters in the waste gas is reduced; the safety device is arranged to ensure the safe work of the exhaust gas circulation unit, and the preset operation is executed when the pressure in the pipeline of the exhaust gas circulation unit is too high or the dust concentration reaches a set value, so that the safe operation of the exhaust gas circulation unit is ensured, and the motion safety of the equipment is improved.
Specifically, exhaust gas circulation device is circulating fan, and safety device is including the explosion-proof valve and the emergency relief valve that set gradually. The explosion-proof valve can give an alarm to remind a user to guide the waste gas in time before the dust concentration in the pipeline reaches the explosion limit, so that the dust content in the waste gas is reduced; or executing preset operation, and guiding the waste gas to an emergency waste gas treatment device to treat the waste gas so as to reduce the dust content in the waste gas and ensure the operation safety of the production system. The emergency safety valve can perform pressure relief treatment on the pipeline when the pressure in the pipeline is overlarge. For example, when the system has a fault, the exhaust gas in the exhaust gas circulation unit is guided to the standby passage to lead the exhaust gas away, so that the continuous accumulation of the exhaust gas in the pipeline is avoided, the pressure in the pipeline is continuously increased, and the potential safety hazard is caused.
As shown in fig. 1 to 7, in the embodiment of the present invention, the temperature-controlled heat energy recovery unit includes a heat exchange device and a heat energy recovery device, an air inlet of the heat exchange device is connected to the air outlet, an air outlet of the heat exchange device is connected to the exhaust gas circulation unit, and the heat energy recovery device is connected to the heat exchange device and is configured to recover heat of the cooling medium of the heat exchange device to the coarse crushing production unit, and/or the ultrafine crushing production unit, and/or the bulking or granulating unit, and/or the drying unit, and/or the cooling unit. The temperature-control heat energy recovery unit consisting of the heat exchange device and the heat energy recovery device is arranged, wherein the heat exchange device can exchange heat energy in the waste gas into a heat exchange medium, so that the concentrated recovery of the heat energy is realized, the temperature of the waste gas can be reduced, water vapor in the waste gas is condensed to form water drops, and the aim of reducing the water content in the waste gas is fulfilled; the heat energy recovery device can concentrate heat energy carried in the heat exchange medium, and the heat energy can be converted into energy forms which can be utilized among all units of the feed production system to participate in the operation of the feed production system, so that the requirements of the feed production system on energy of other forms such as external electric energy, heat energy and the like are reduced, the energy consumption of the feed production system is effectively reduced, and the purpose of energy conservation is achieved.
As shown in fig. 3 and 6, in a specific embodiment, the heat exchange device comprises an evaporator and a condenser, the evaporator comprises a waste gas inlet, a waste gas outlet and an evaporation pipe, the condenser comprises a cooling inlet, a cooling outlet and a condensation pipe, the waste gas inlet is communicated with the air outlet, the waste gas outlet is communicated with the air inlet, the cooling inlet and the cooling outlet are respectively connected with the heat energy recovery device, and the evaporation pipe and the condensation pipe are sequentially connected end to end. Waste gas generated in the production process of the feed production system enters the evaporator from a waste gas inlet of the evaporator, exchanges heat with the evaporator and a cooling medium in the evaporator to realize the cooling of the waste gas, is discharged from a waste gas outlet and enters the feed production system through air inlets of all units of the feed production system to participate in production again. And the cooling medium in the heat exchange device is continuously evaporated and condensed between the evaporator and the condenser to transfer the heat in the waste gas to the heat exchange medium entering the condenser from the cooling inlet of the condenser, and the heat in the heat exchange medium is transferred to the heat energy recovery device through the concentrated recovery of the heat in the heat exchange medium, so that the cooling and heat energy recovery of the waste gas can be effectively realized.
Furthermore, a compressor and an expansion valve are respectively arranged on a connecting loop of the evaporating pipe and the condensing pipe. The compressor can ensure the continuous circulation of the refrigerant between the evaporation pipe and the condensation pipe and transfer the heat energy carried in the waste gas into the refrigerant; the refrigerant volatilizes and absorbs the heat in a large amount of waste gases when passing through the evaporator, then compresses the refrigerant under the effect of the compressor, so that the heat absorbed by the refrigerant is released, the arrangement of the expansion valve can ensure that the refrigerant is decompressed before entering the evaporator, the stability of the internal pressure of the heat exchange device is ensured, and the pressure is released when the pressure exceeds a threshold value, thereby effectively improving the working safety of the heat exchange device.
In other embodiments, as shown in fig. 4, the heat exchange device may have other configurations, for example, the heat exchange device includes a heat exchanger and a cooling tower, the heat exchanger includes a waste gas inlet, a waste gas outlet, and a heat exchange tube, the waste gas inlet is communicated with the exhaust outlet, the waste gas outlet is communicated with the air inlet, the heat exchange tube and the cooling tower are connected by a connection tube to form a closed loop, and the connection tube is provided with a circulating water pump.
In the embodiment, the heat exchange device consists of a heat exchanger and a cooling tower, cooling water is continuously pumped into the heat exchanger through a circulating water pump to cool the waste gas flowing through the heat exchanger, and then the cooling water flows out of the cooling tower to be cooled. When the unit has low calorific value and the heat energy recovery cost is higher, a heat exchange device consisting of a heat exchanger and a cooling tower can be adopted to cool the waste gas, and the operation of the heat energy recovery device is closed, so that the consumption of the system operation is reduced.
As shown in fig. 5 and 7, in an alternative embodiment, a cold water preparation device is further included, and the cold water preparation device includes a cold water unit and a chilled water storage tank, the cold water unit is connected to the chilled water storage tank and is used for preparing cold water into the chilled water storage tank, and the chilled water storage tank is communicated with the cooling tower. To the region of carrying out the differentiation power supply of flat peak valley, this mode sets up cold water preparation facilities, at night with the operation of electricity valley time section preparation cold water, utilizes cold water to carry out the cooling dehumidification of waste gas when daytime with the electricity peak time period, reduces the working strength of cooling tower, reduces the consumption to the electric energy to realize reasonable power consumption distribution, reduce the requirement to the electric wire netting.
In the embodiment of the invention, the heat energy recovery device comprises a connecting pipeline, a hot water storage tank and a heat energy conversion assembly, wherein the hot water storage tank is connected with the cooling outlet of the heat exchange device through the connecting pipeline, and the heat energy conversion assembly is connected with the hot water storage tank.
Through utilizing hot water as heat transfer medium, collect heat energy through heat exchange device from waste gas, reduce the temperature of waste gas, and transport heat energy to the hot water storage tank in, then through the energy conversion subassembly with the heat energy conversion of hot water in into the energy that feed production system can utilize, participate in the production to feed production system, it is extravagant with the heat energy when effectual reduction exhaust emission, and reduce the demand of feed production system to other forms such as external electric energy and heat energy.
In a particular embodiment, the thermal energy conversion assembly is any device capable of extracting thermal energy from hot water for use by the feed production system, such as a high temperature heat pump, or/and a vacuum flash tank, or/and a steam generator.
In an alternative embodiment of the present invention, a condensed water collecting assembly is disposed inside the heat exchange device for collecting condensed water condensed from the exhaust gas. Waste water that the waste gas condensation came out is collected through set up the comdenstion water in heat exchange device, at first can effectual reduction waste gas humidity, secondly can avoid waste water to get into the feed production system once more.
In addition, the embodiment of the invention also comprises an online detection instrument and a control device, which are used for detecting and controlling the dust concentration, the temperature and the humidity of the circulating exhaust gas. Wherein, on-line measuring instrument includes first on-line measuring instrument and second on-line measuring instrument, and first on-line measuring instrument is located the air exit for detect waste gas's dust concentration, temperature and humidity, second on-line measuring instrument is located air intake department, is used for detecting circulating gas's temperature and humidity.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. A feed production system is characterized by comprising a coarse crushing production unit, an ultrafine crushing production unit, a puffing or granulating unit, a drying unit and a cooling unit which are sequentially arranged along a production process, wherein air outlets of the coarse crushing production unit, and/or the ultrafine crushing production unit, and/or the puffing or granulating unit, and/or the drying unit, and/or the cooling unit are connected with a temperature-control heat energy recovery unit which is used for recovering heat energy of waste gas generated in the production process of the feed production system to the feed production system;
accuse temperature heat recovery unit includes heat exchange device and heat recovery unit, heat exchange device's air inlet with the air exit is connected, heat exchange device's gas outlet with coarse crushing production unit, and/or super little crushing production unit, and/or expand or pelletize the unit, and/or drying unit, and/or the air intake connection of cooling unit, heat recovery device with heat exchange device connects, is used for with heat exchange device's cooling medium's heat recovery extremely the feed production system.
2. The feed production system of claim 1, wherein the heat exchange device comprises an evaporator and a condenser, the evaporator comprises a waste gas inlet, a waste gas outlet and an evaporation pipe, the condenser comprises a cooling inlet, a cooling outlet and a condensation pipe, the waste gas inlet is communicated with the air outlet, the waste gas outlet is communicated with the air inlet, the cooling inlet and the cooling outlet are respectively connected with the heat energy recovery device, and the evaporation pipe is sequentially connected with the condensation pipe end to end.
3. The feed production system according to claim 2, wherein a compressor and an expansion valve are provided on the connection loop of the evaporation pipe and the condensation pipe, respectively.
4. The feed production system as recited in claim 1, wherein the heat exchanging device comprises a heat exchanger and a cooling tower, the heat exchanger comprises a waste gas inlet, a waste gas outlet and a heat exchanging pipe, the waste gas inlet is communicated with the air outlet, the waste gas outlet is communicated with the air inlet, the heat exchanging pipe and the cooling tower are connected into a closed loop through a connecting pipe, and a circulating water pump is arranged on the connecting pipe.
5. The feed production system of claim 4, further comprising a cold water preparation device, wherein the cold water preparation device comprises a cold water unit and a chilled water storage tank, the cold water unit is connected with the chilled water storage tank and is used for preparing cold water into the chilled water storage tank, and the chilled water storage tank is communicated with the cooling tower.
6. The feed production system of claim 1, wherein the thermal energy recovery device comprises a connecting line, a hot water storage tank connected to the cooling outlet of the heat exchange device via the connecting line, and a thermal energy conversion assembly connected to the hot water storage tank.
7. The feed production system of claim 6 wherein the thermal energy conversion assembly is a high temperature heat pump, or/and a vacuum flash tank, or/and a steam generator.
8. The feed production system of claim 1, wherein a purification and filtration device is disposed between the heat exchange device and the exhaust outlet.
9. The feed production system of claim 1, wherein an exhaust gas treatment device is disposed between the heat exchange device and the air intake.
10. The feed production system of claim 1, wherein the heat exchanger is internally provided with a condensate collection assembly for collecting condensate condensed from the exhaust gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911144323.7A CN110720649A (en) | 2019-11-20 | 2019-11-20 | Feed production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911144323.7A CN110720649A (en) | 2019-11-20 | 2019-11-20 | Feed production system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110720649A true CN110720649A (en) | 2020-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911144323.7A Pending CN110720649A (en) | 2019-11-20 | 2019-11-20 | Feed production system |
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| CN211211401U (en) * | 2019-11-20 | 2020-08-11 | 广州金鹏环保工程有限公司 | Feed production system |
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