CN115124375A - Carbon-based fertilizer production equipment and continuous production method thereof - Google Patents
Carbon-based fertilizer production equipment and continuous production method thereof Download PDFInfo
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- CN115124375A CN115124375A CN202210704441.4A CN202210704441A CN115124375A CN 115124375 A CN115124375 A CN 115124375A CN 202210704441 A CN202210704441 A CN 202210704441A CN 115124375 A CN115124375 A CN 115124375A
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- heat
- carbon
- based fertilizer
- flue gas
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 56
- 239000003337 fertilizer Substances 0.000 title claims abstract description 49
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000010924 continuous production Methods 0.000 title claims abstract description 19
- 238000001035 drying Methods 0.000 claims abstract description 114
- 230000001954 sterilising effect Effects 0.000 claims abstract description 58
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000003546 flue gas Substances 0.000 claims abstract description 47
- 238000003763 carbonization Methods 0.000 claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 39
- 239000002994 raw material Substances 0.000 claims abstract description 32
- 238000001816 cooling Methods 0.000 claims abstract description 31
- 239000000654 additive Substances 0.000 claims abstract description 13
- 230000000996 additive effect Effects 0.000 claims abstract description 12
- 238000010000 carbonizing Methods 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 52
- 239000002918 waste heat Substances 0.000 claims description 24
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000005086 pumping Methods 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 4
- 239000003610 charcoal Substances 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000007872 degassing Methods 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000002028 Biomass Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000010828 animal waste Substances 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the field of carbon-based fertilizer production, in particular to carbon-based fertilizer production equipment and a continuous production method thereof, wherein the equipment comprises the following steps: the pre-drying device is provided with a first material feeding hole and is suitable for feeding raw materials into the pre-drying device for pre-drying; the carbonization furnace is connected with the pre-drying device through a first conveying device and is used for carbonizing the pre-dried raw materials; the drying and sterilizing device is connected with the carbonization furnace through a second conveying device and is provided with a second material feeding hole for feeding an additive material; cooling device is connected with stoving degassing unit through third conveyor for export after the misce bene cooling after with the stoving disinfection, this fertile production facility's of charcoal beneficial effect is favorable to realizing the fertile serialization production of charcoal base, in order to promote the fertile production efficiency of charcoal base, can reduce the carbon emission in the flue gas simultaneously, plays the purpose of "solid carbon".
Description
Technical Field
The invention relates to the field of carbon-based fertilizer production, in particular to carbon-based fertilizer production equipment and a continuous production method thereof.
Background
The carbon-based fertilizer is an ecological environment-friendly fertilizer prepared by adding organic matters or/and inorganic matters into biomass carbon serving as a matrix according to the characteristics of land in different areas, the growth characteristics of different crops and a scientific fertilization principle. The fertilizer is also called carbon-based fertilizer in the industry.
In industrial production, the existing equipment is difficult to realize the continuous production of the carbon-based fertilizer, so that the demand for designing carbon-based fertilizer production equipment is urgent to carry out continuous production and improve the production efficiency of the carbon-based fertilizer.
Disclosure of Invention
The invention aims to provide carbon-based fertilizer production equipment and a continuous production method thereof.
In order to solve the technical problem, the invention provides a carbon-based fertilizer production device, which comprises: the pre-drying device is provided with a first material feeding hole and is suitable for feeding raw materials into the pre-drying device for pre-drying; the carbonization furnace is connected with the pre-drying device through a first conveying device and is used for carbonizing the pre-dried raw materials; the drying and sterilizing device is connected with the carbonization furnace through a second conveying device and is provided with a second material feeding hole for feeding an additive; and the cooling device is connected with the drying and sterilizing device through a third conveying device and is used for cooling and outputting the dried and sterilized mixed material.
Further, carbon-based fertilizer production facility still include conduction oil circulation system, it includes: the smoke heat-conducting oil heat exchanger is connected with a high-temperature smoke discharge port of the carbonization furnace; a heat-conducting oil pump; the heat conduction oil conveying pipeline is used for connecting the heat conduction oil pump, the smoke heat conduction oil exchanger, the drying and sterilizing device and the pre-drying device in series; the heat conducting oil is conveyed to the flue gas heat conducting oil heat exchanger through the heat conducting oil pump, heated by high-temperature flue gas, enters the drying and sterilizing device for heating, then enters the pre-drying device for heating, and finally returns to the heat conducting oil pump for circulation.
Furthermore, heat conduction oil pipeline interfaces are arranged at the heat conduction oil inlet and outlet ends of the drying and sterilizing device and the pre-drying device, and the heat conduction oil conveying pipelines are detachably connected through the heat conduction oil pipeline interfaces.
Further, fertile production facility of charcoal base still include tail gas collecting system, it includes: the tail gas air waste heat exchanger is used for exchanging heat between external normal temperature air and tail gas generated in the drying and sterilizing device; the first fan is used for pumping the tail gas into the carbonization furnace from the tail gas air waste heat exchanger for incineration; and the second fan is used for pumping the high-temperature flue gas generated in the carbonization furnace into the flue gas heat-conducting oil heat exchanger to exchange heat with the low-temperature heat-conducting oil for cooling and then discharging.
Further, the tail gas collecting system also comprises an air conveying pipeline which sequentially connects the tail gas air waste heat exchanger, the pre-drying device and the drying and sterilizing device; after entering the tail gas air waste heat exchanger to heat up, the normal temperature air sequentially enters the pre-drying device and the drying and sterilizing device.
Furthermore, the cooling device is a cooling screw conveyor and is suitable for cooling and outputting the dried and sterilized mixed material.
Further, a fourth conveying device is used for conveying the raw materials into the first material inlet; and the fifth conveying device is used for conveying the additive into the second material inlet.
In another aspect, the invention also provides a continuous production method of the carbon-based fertilizer, which comprises the following steps: feeding the raw material into a pre-drying device through a first material feeding hole for pre-drying; feeding the dried raw material into a carbonization furnace through a first conveying device for biomass carbonization; the carbonized raw materials are sent into a drying and sterilizing device through a second conveying device, and are dried, sterilized and mixed with the additive sent into the drying and sterilizing device through a second material inlet; and (4) feeding the mixed material into a cooling device through a third conveying device for cooling to generate a finished product of the carbon-based fertilizer.
Further, the continuous production method of the carbon-based fertilizer further comprises the following steps: the heat conduction oil is conveyed to the flue gas heat conduction oil exchanger through the heat conduction oil pump, after being heated by high-temperature flue gas, the heat conduction oil enters the drying and sterilizing device for heating, then enters the pre-drying device for heating, and finally returns to the heat conduction oil pump for circulation.
Further, the continuous production method of the carbon-based fertilizer further comprises the following steps: after normal temperature air enters a tail gas air waste heat exchanger for heat exchange and temperature rise, the normal temperature air sequentially enters a pre-drying device and a drying and sterilizing device, and high temperature tail gas generated in the sterilizing process of the drying and sterilizing device is pumped into a carbonization furnace for incineration after being subjected to heat exchange and temperature reduction by the tail gas air waste heat exchanger; high-temperature flue gas generated in the carbonization furnace is pumped into the flue gas heat-conducting oil heat exchanger to exchange heat with low-temperature heat-conducting oil and reduce the temperature, and then is discharged to the flue gas treatment module.
The invention has the beneficial effects that the pre-drying device, the carbonization furnace, the drying and sterilizing device and the cooling device are respectively connected in sequence through the corresponding conveying devices, thereby being beneficial to realizing the continuous production of the carbon-based fertilizer and improving the production efficiency of the carbon-based fertilizer. Meanwhile, the carbon emission in the flue gas can be reduced, and the purpose of carbon fixation is achieved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a perspective view of a carbon-based fertilizer production apparatus of the present invention;
FIG. 2 is a system block diagram of a conduction oil circulation system of the present invention;
FIG. 3 is a system block diagram of the exhaust gas collection system of the present invention.
In the figure:
the device comprises a pre-drying device 1, a first material feeding hole 11, a fourth conveying device 12, a carbonization furnace 2, a first conveying device 21, a drying and sterilizing device 3, a second conveying device 31, a second material feeding hole 32, a fifth conveying device 33, a cooling device 4, a third conveying device 41, a heat conduction oil circulating system 5, a smoke heat conduction oil heat exchanger 51, a heat conduction oil pump 52, a heat conduction oil pipeline connector 53, a tail gas collecting system 6, a tail gas air waste heat exchanger 61, a first fan 62, a second fan 63, an air conveying pipeline 64 and an electric cabinet 7.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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.
Example 1
As shown in fig. 1, this embodiment provides a carbon-based fertilizer production apparatus, including: the pre-drying device 1 is provided with a first material feeding hole 11 and is suitable for feeding raw materials into the pre-drying device 1 for pre-drying; the carbonization furnace 2 is connected with the pre-drying device 1 through a first conveying device 21 and is used for carbonizing the pre-dried raw materials; the drying and sterilizing device 3 is connected with the carbonization furnace 2 through a second conveying device 31, and is provided with a second material inlet 32 for feeding additive materials; and the cooling device 4 is connected with the drying and sterilizing device 3 through a third conveying device 41 and is used for cooling and outputting the dried and sterilized mixed material.
In the embodiment, the raw material can be agricultural and forestry wastes (such as wood chips, rice hulls, straws and the like), and the additive can be organic materials such as animal wastes, algae and the like; the first conveying device 21, the second conveying device 31 and the third conveying device 41 may be screw conveyors, or may be a combination of belt conveyors and screw conveyors; the raw materials are mixed by a spiral conveyor and then are conveyed to a pre-drying device 1 by a belt conveyor, and the raw materials are dried and mixed by the pre-drying device 1; conveying the pre-dried raw materials to a carbonization furnace feeding screw conveyor through a discharge hole of the pre-drying device 1 by a belt conveyor, and then entering a carbonization furnace 2 for carbonization; the carbonized raw materials enter a drying and sterilizing device 3 through a spiral conveyor for discharging materials from the carbonization furnace, and are sterilized, dried and mixed in the drying and sterilizing device 3 together with organic materials entering the drying and sterilizing device 3 through a belt conveyor at the other side; the mixed material is conveyed to a cooling device 4 by a paddle discharge screw conveyor to be cooled and then conveyed out of the carbon-based fertilizer by a belt conveyor.
In this embodiment, pre-drying device 1, retort 2, stoving degassing unit 3 and cooling device 4 connect gradually through corresponding conveyor respectively, are favorable to realizing the serialization production of charcoal base fertilizer to promote the fertile production efficiency of charcoal base. Meanwhile, the carbon emission in the flue gas can be reduced, and the purpose of carbon fixation is achieved.
As shown in fig. 1 and fig. 2, in this embodiment, the carbon-based fertilizer production apparatus further includes a heat transfer oil circulation system 5, which includes: the flue gas heat conduction oil heat exchanger 51 is connected with a high-temperature flue gas discharge port of the carbonization furnace 2; the heat-conductive oil pump 52; the heat conduction oil conveying pipeline is used for connecting the heat conduction oil pump 52, the smoke heat conduction oil heat exchanger 51, the drying and sterilizing device 3 and the pre-drying device 1 in series; the heat transfer oil is conveyed to the flue gas heat transfer oil heat exchanger 51 through the heat transfer oil pump 52, heated by high-temperature flue gas, enters the drying and sterilizing device 3 for heating, then enters the pre-drying device 1 for heating, and finally returns to the heat transfer oil pump 52 for circulation.
In the present embodiment, the heat transfer oil pump 52 transfers the low-temperature heat transfer oil into the flue gas heat transfer oil heat exchanger 51 to be heated by the high-temperature flue gas generated by the carbonization furnace 2; the heated high-temperature heat conduction oil is conveyed to the drying and sterilizing device 3 and the pre-drying device 1 through a heat conduction oil conveying pipeline in sequence by a heat conduction oil pump 52 so as to heat and dry the raw materials and the mixed materials to be dried inside the pre-drying device; the temperature of the heat transfer oil heated by the pre-drying device 1 is reduced, and the low-temperature heat transfer oil returns to the oil return groove at the heat transfer oil pump 52 to continue to circulate.
In this embodiment, the heat conducting oil circulating system 5 makes full use of the high temperature flue gas generated by the waste in the carbonization process in the carbonization furnace 2, the heat conducting oil is transferred to the heat conducting oil through the flue gas heat conducting oil heat exchanger 51, and the raw materials and the mixed materials in the drying and sterilizing device 3 and the pre-drying device 1 are heated, dried and sterilized through the heat conducting oil. In the production process, heat energy is not required to be provided by means of external energy, so that the energy consumption is reduced, the heat energy conversion efficiency of the whole machine is improved, the energy is saved, and the effect of reducing carbon emission in the production process can be achieved.
In this embodiment, the heat conducting oil inlet and outlet ends of the drying and sterilizing device 3 and the pre-drying device 1 are respectively provided with a heat conducting oil pipeline connector 53, and the heat conducting oil conveying pipelines are detachably connected through the heat conducting oil pipeline connectors 53.
In this embodiment, the heat conducting oil delivery pipe is detachably connected through the heat conducting oil pipe connector 53, so that the pipe can be disassembled and assembled conveniently.
In this embodiment, as shown in fig. 1 and fig. 3, the carbon-based fertilizer production apparatus further includes a tail gas collection system 6, which includes: the tail gas air waste heat exchanger 61 is used for exchanging heat between external normal-temperature air and tail gas generated in the drying and sterilizing device 3; the first fan 62 is used for pumping the tail gas from the tail gas air waste heat exchanger 61 into the carbonization furnace 2 for incineration; and the second fan 63 is used for pumping the high-temperature flue gas generated in the carbonization furnace 2 into the flue gas heat conduction oil heat exchanger 51 to exchange heat with the low-temperature heat conduction oil for cooling and then discharging the flue gas.
In this embodiment, can make the surplus heat in the tail gas that produces among the drying and sterilizing device 3 retrieve through tail gas air waste heat exchanger 61, and will the high temperature flue gas that produces after burning in retort 2 is discharged after the heat transfer cooling of flue gas conduction oil heat exchanger 51, avoids the environmental pollution that the direct emission of tail gas caused on the one hand, and on the other hand also can further utilize the surplus heat in the tail gas, improves the heat energy conversion rate of whole equipment.
In this embodiment, the tail gas collection system 6 further includes an air conveying pipeline 64 for sequentially connecting the tail gas air waste heat exchanger 61, the pre-drying device 1, and the drying and sterilizing device 3; after entering the tail gas air waste heat exchanger 61, the normal temperature air enters the pre-drying device 1 and the drying and sterilizing device 3 in sequence.
In the embodiment, normal temperature air is heated by the heat exchange of the tail gas and then passes through the pre-drying device 1, so that on one hand, the normal temperature air and the heat conduction oil can cooperate to dry raw materials together, and on the other hand, water vapor generated by drying in the pre-drying device 1 can be taken away; and then enters the drying and sterilizing device 3 to bring the tail gas generated in the drying and sterilizing device 3 into the tail gas air waste heat exchanger 61.
Optionally, the cooling device 4 is a cooling screw conveyor, and is adapted to cool and output the dried and sterilized mixed material.
Optionally, the carbon-based fertilizer production equipment further comprises an electric cabinet 7; the electric cabinet 7 is suitable for controlling the starting, closing and automatic operation of carbon-based fertilizer production equipment, reduces the labor cost and ensures the stable quality of products.
In this embodiment, the carbon-based fertilizer production equipment further includes a fourth conveying device 12, configured to convey the raw material into the first material feed port 11; and a fifth conveying device 33 for conveying the additive into the second material inlet 32.
In the present embodiment, the fourth conveyor 12 and the fifth conveyor 33 may be belt conveyors.
Preferably, the main devices of the equipment, such as the pre-drying device 1, the carbonization furnace 2, the drying and sterilizing device 3, the heat transfer oil heat exchanger 51 for flue gas, and the heat exchanger 61 for waste heat of tail gas and air, are all fixedly arranged in the container (1 container with 20 feet side opening and 2 containers with 40 feet side opening), the air conveying pipeline 64, the heat transfer oil conveying pipeline, the first conveying device 21, the second conveying device 31, the third conveying device 41, the fourth conveying device 12, the fifth conveying device 33, the cooling device 4 and the like are all detachably connected with the main devices, and the equipment is used and can be disassembled after the use to be placed in the container. Therefore, the transportation of raw materials, the lease of a fixed site and the assembly cost of the whole set of equipment are saved, and the production efficiency is greatly improved.
Example 2
On the basis of the above embodiment, the present embodiment further provides a continuous production method of a carbon-based fertilizer, including: feeding the raw materials into a pre-drying device 1 through a first material inlet 11 for pre-drying; the dried raw material is sent into a carbonization furnace 2 through a first conveying device 21 for biomass carbonization; the carbonized raw materials are sent into a drying and sterilizing device 3 through a second conveying device 31, and are dried, sterilized and mixed with the additive materials sent into the drying and sterilizing device 3 through a second material inlet 32; and sending the mixed material into a cooling device 4 through a third conveying device 41 for cooling to generate a finished product of the carbon-based fertilizer.
In this embodiment, the feed inlets of the raw material and the additive are respectively arranged at the pre-drying device 1 and the drying and sterilizing device 3, so that the raw material and the additive can be processed by adopting different procedures before drying and sterilizing, and the continuous production of the carbon-based fertilizer can be realized.
In this embodiment, the continuous production method of the carbon-based fertilizer further includes: the heat conduction oil is conveyed to the flue gas heat conduction oil heat exchanger 51 through the heat conduction oil pump 52, and after being heated by high-temperature flue gas, the heat conduction oil enters the drying and sterilizing device 3 for heating, then enters the pre-drying device 1 for heating, and finally returns to the heat conduction oil pump 52 for circulation.
In the embodiment, heat generated in the continuous production process of the carbon-based fertilizer is fully utilized through heat conduction oil circulation, so that heat energy loss is reduced, energy is saved, and carbon emission is reduced.
In this embodiment, the continuous production method of the carbon-based fertilizer further includes: after entering the tail gas air waste heat exchanger 61 for heat exchange and temperature rise, normal temperature air enters the pre-drying device 1 and the drying and sterilizing device 3 in sequence, and high temperature tail gas generated in the sterilizing process of the drying and sterilizing device 3 is pumped into the carbonization furnace 2 for incineration after heat exchange and temperature reduction through the tail gas air waste heat exchanger 61; high-temperature flue gas generated in the carbonization furnace 2 is pumped into the flue gas heat conduction oil heat exchanger 51 to exchange heat with low-temperature heat conduction oil, is cooled and is discharged to the flue gas treatment module.
In this embodiment, the tail gas after first fan 62 will transfer heat and cool down sends into retort 2 and burns the back, and the negative pressure that produces among the air conveying pipeline 64 makes normal atmospheric temperature air get into tail gas air waste heat exchanger 61 heat transfer intensification, gets into then that the pre-drying device 1 helps the high temperature conduction oil to dry and take away the produced steam of stoving in-process after, later gets into stoving degassing unit 3 and takes away the high temperature tail gas that its inside stoving disinfection produced. High-temperature flue gas generated by incineration in the carbonization furnace 2 is used for heating low-temperature heat conducting oil, and is treated by the flue gas treatment module and then is cleanly discharged.
In conclusion, the heat conduction oil circulation system 5 can ensure that the whole equipment does not need to provide heat energy by means of external energy in the production process, thereby reducing the energy consumption, improving the heat energy conversion efficiency of the whole equipment, saving the energy and simultaneously playing the effect of reducing the carbon emission in the production process. The surplus heat in the tail gas that produces among the drying and sterilizing device 3 can be retrieved through tail gas air waste heat exchanger 61, and will the high temperature flue gas that produces after burning in the retort 2 is discharged after the heat transfer cooling of flue gas conduction oil heat exchanger 51 to the tail gas lets in, avoids the direct environmental pollution who discharges the cause of tail gas on the one hand, and on the other hand also can further utilize the surplus heat in the tail gas, improves the heat energy conversion rate of whole equipment. The main equipment is fixed in the container, and various pipelines, conveying devices and the like are detachably connected with the main equipment, so that the transportation of raw materials, the lease of a fixed site and the assembly cost of the whole set of equipment are saved, and the production efficiency is greatly improved.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A carbon-based fertilizer production equipment is characterized by comprising:
the pre-drying device (1) is provided with a first material feeding hole (11) and is suitable for feeding raw materials into the pre-drying device (1) for pre-drying;
the carbonization furnace (2) is connected with the pre-drying device (1) through a first conveying device (21) and is used for carbonizing the pre-dried raw materials;
the drying and sterilizing device (3) is connected with the carbonization furnace (2) through a second conveying device (31), and a second material inlet (32) for feeding additive materials is formed in the drying and sterilizing device;
and the cooling device (4) is connected with the drying and sterilizing device (3) through a third conveying device (41) and is used for cooling and outputting the dried and sterilized mixed material.
2. The carbon-based fertilizer production apparatus as claimed in claim 1, further comprising:
a heat conduction oil circulation system (5) comprising:
the flue gas heat conduction oil heat exchanger (51) is connected with a high-temperature flue gas discharge port of the carbonization furnace (2);
a heat-conductive oil pump (52); and
the heat conduction oil conveying pipeline is used for connecting the heat conduction oil pump (52), the smoke heat conduction oil heat exchanger (51), the drying and sterilizing device (3) and the pre-drying device (1) in series; wherein
The heat conducting oil is conveyed to the flue gas heat conducting oil heat exchanger (51) through the heat conducting oil pump (52), is heated by high-temperature flue gas, enters the drying and sterilizing device (3) for heating, then enters the pre-drying device (1) for heating, and finally returns to the heat conducting oil pump (52) for circulation.
3. Carbon-based fertilizer production apparatus according to claim 2,
the heat conducting oil inlet and outlet ends of the drying and sterilizing device (3) and the pre-drying device (1) are respectively provided with a heat conducting oil pipeline connector (53), and the heat conducting oil conveying pipelines are detachably connected through the heat conducting oil pipeline connectors (53).
4. The carbon-based fertilizer production apparatus as claimed in claim 1, further comprising:
an exhaust gas collection system (6) comprising:
the tail gas air waste heat exchanger (61) is used for exchanging heat between external normal temperature air and tail gas generated in the drying and sterilizing device (3);
the first fan (62) is used for pumping the tail gas from the tail gas air waste heat exchanger (61) into the carbonization furnace (2) for incineration;
and the second fan (63) is used for pumping the high-temperature flue gas generated in the carbonization furnace (2) into the flue gas heat conduction oil heat exchanger (51) to exchange heat with the low-temperature heat conduction oil and reduce the temperature, and then discharging the flue gas.
5. The carbon-based fertilizer production apparatus as claimed in claim 4,
the tail gas collecting system (6) also comprises an air conveying pipeline (64) which sequentially connects the tail gas air waste heat exchanger (61), the pre-drying device (1) and the drying and sterilizing device (3);
after entering the tail gas air waste heat exchanger (61) to be heated, the normal temperature air enters the pre-drying device (1) and the drying and sterilizing device (3) in sequence.
6. Carbon-based fertilizer production apparatus according to claim 1,
the cooling device (4) is a cooling screw conveyor and is suitable for cooling and outputting the dried and sterilized mixed materials.
7. The carbon-based fertilizer production apparatus as claimed in claim 1, further comprising:
the fourth conveying device (12) is used for conveying the raw materials into the first material feeding hole (11); and
and the fifth conveying device (33) is used for conveying the additive into the second material inlet (32).
8. A continuous production method of carbon-based fertilizer by the carbon-based fertilizer production apparatus as claimed in claim 1, comprising:
feeding the raw materials into a pre-drying device (1) through a first material feeding hole (11) for pre-drying;
the dried raw materials are conveyed into a carbonization furnace (2) through a first conveying device (21) to be carbonized;
the carbonized raw materials are sent into a drying and sterilizing device (3) through a second conveying device (31) and are dried, sterilized and mixed with the additives sent into the drying and sterilizing device (3) through a second material inlet (32);
and (3) conveying the mixed material into a cooling device (4) through a third conveying device (41) for cooling to generate a finished product of the carbon-based fertilizer.
9. The continuous production method of the carbon-based fertilizer as claimed in claim 8, further comprising:
the heat conduction oil is conveyed to the flue gas heat conduction oil heat exchanger (51) through the heat conduction oil pump (52), the heat conduction oil is heated by high-temperature flue gas, enters the drying and sterilizing device (3) for heating, then enters the pre-drying device (1) for heating, and finally returns to the heat conduction oil pump (52) for circulation.
10. The continuous production method of the carbon-based fertilizer as claimed in claim 8, further comprising:
after normal temperature air enters a tail gas air waste heat exchanger (61) for heat exchange and temperature rise, the normal temperature air sequentially enters a pre-drying device (1) and a drying and sterilizing device (3), and high temperature tail gas generated in the sterilizing process of the drying and sterilizing device (3) is pumped into a carbonization furnace (2) for incineration after heat exchange and temperature reduction through the tail gas air waste heat exchanger (61);
high-temperature flue gas generated in the carbonization furnace (2) is pumped into the flue gas heat-conducting oil heat exchanger (51) to exchange heat with low-temperature heat-conducting oil and is discharged to the flue gas treatment module after being cooled.
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CN104986934A (en) * | 2015-06-05 | 2015-10-21 | 李学文 | Continuous thermal decomposition method and apparatus for sludge |
CN105664857A (en) * | 2016-04-20 | 2016-06-15 | 福建元力环境工程有限公司 | Clean, environment-friendly and efficient activated carbon regeneration device |
CN110885692A (en) * | 2019-12-23 | 2020-03-17 | 常州市华源干燥设备有限公司 | Continuous carbonization device and working method thereof |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN104986934A (en) * | 2015-06-05 | 2015-10-21 | 李学文 | Continuous thermal decomposition method and apparatus for sludge |
CN105664857A (en) * | 2016-04-20 | 2016-06-15 | 福建元力环境工程有限公司 | Clean, environment-friendly and efficient activated carbon regeneration device |
CN110885692A (en) * | 2019-12-23 | 2020-03-17 | 常州市华源干燥设备有限公司 | Continuous carbonization device and working method thereof |
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