CN115124375B - 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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- CN115124375B CN115124375B CN202210704441.4A CN202210704441A CN115124375B CN 115124375 B CN115124375 B CN 115124375B CN 202210704441 A CN202210704441 A CN 202210704441A CN 115124375 B CN115124375 B CN 115124375B
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 58
- 239000003337 fertilizer Substances 0.000 title claims abstract description 49
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 33
- 238000010924 continuous production Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000001035 drying Methods 0.000 claims abstract description 121
- 230000001954 sterilising effect Effects 0.000 claims abstract description 65
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000003763 carbonization Methods 0.000 claims abstract description 42
- 239000003546 flue gas Substances 0.000 claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 42
- 239000002994 raw material Substances 0.000 claims abstract description 35
- 238000001816 cooling Methods 0.000 claims abstract description 32
- 238000010000 carbonizing Methods 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 51
- 239000002918 waste heat Substances 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 claims description 14
- 239000000779 smoke Substances 0.000 claims description 10
- 239000000654 additive Substances 0.000 claims description 9
- 230000000996 additive effect Effects 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000002028 Biomass Substances 0.000 description 2
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 210000003608 fece Anatomy 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
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- 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 components: 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 feed inlet for the addition material to enter; the cooling device is connected with the drying and sterilizing device through the third conveying device and used for cooling and outputting the dried and sterilized mixed materials, and the carbon-based fertilizer production equipment has the beneficial effects of being beneficial to realizing continuous production of carbon-based fertilizer, improving the production efficiency of the carbon-based fertilizer, reducing carbon emission in flue gas and achieving the purpose of carbon fixation.
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 taking biomass carbon as a matrix and adding organic matters or/and inorganic matters according to the characteristics of different areas and different crop growth characteristics and scientific fertilization principles. The industry is also called as carbon-based fertilizer.
In industrial production, the existing equipment is difficult to realize continuous production of the carbon-based fertilizer, so that it is highly desirable to design a carbon-based fertilizer production equipment to perform 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 problems, the invention provides carbon-based fertilizer production equipment, 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 feed inlet for the addition material to enter; 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 materials.
Further, the carbon-based fertilizer production equipment also comprises a heat conduction oil circulation system, which comprises: the flue gas heat conduction oil heat exchanger is connected with a high-temperature flue gas discharge port of the carbonization furnace; a thermally conductive oil pump; and a conduction oil conveying pipeline which connects the conduction oil pump, the flue gas conduction oil heat exchanger, the drying and sterilizing device and the pre-drying device in series; the heat conduction oil is conveyed to the smoke heat conduction oil heat exchanger through the heat conduction oil pump, enters the drying and sterilizing device for heating after being heated by high-temperature smoke, then enters the pre-drying device for heating, and finally returns to the heat conduction oil pump for circulation.
Furthermore, the heat conducting oil inlet and outlet ends of the drying and sterilizing device and the pre-drying device are respectively provided with a heat conducting oil pipeline interface, and the heat conducting oil conveying pipelines are detachably connected through the heat conducting oil pipeline interfaces.
Further, the carbon-based fertilizer production equipment also includes tail gas collecting system, and 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 from the tail gas air waste heat exchanger into the carbonization furnace for incineration; the second fan is used for sucking high-temperature flue gas generated in the carbonization furnace into the flue gas heat conduction oil heat exchanger, exchanging heat with low-temperature heat conduction oil, cooling and discharging.
Further, the tail gas collecting system further comprises an air conveying pipeline for sequentially connecting the tail gas air waste heat exchanger, the pre-drying device and the drying and sterilizing device; and after the temperature of the normal-temperature air enters the tail gas air waste heat exchanger for heating, the normal-temperature air sequentially enters the pre-drying device and the drying and sterilizing device.
Further, the cooling device is a cooling screw conveyor and is suitable for cooling and outputting the dried and sterilized mixed materials.
Further, the fourth conveying device is used for conveying raw materials into the first material feeding hole; and a fifth conveying device for conveying the additive into the second material feed inlet.
In still another aspect, the present invention also provides a continuous production method of a carbon-based fertilizer, including: feeding the raw materials into a pre-drying device through a first material feeding port for pre-drying; sending the dried raw materials into a carbonization furnace through a first conveying device for biomass carbonization; sending the carbonized raw materials into a drying and sterilizing device through a second conveying device, and drying, sterilizing and mixing the carbonized raw materials and the additive materials sent into the drying and sterilizing device through a second material feeding port; and (3) conveying the mixed material into a cooling device through a third conveying device to be cooled to generate a carbon-based fertilizer finished product.
Further, the continuous production method of the carbon-based fertilizer further comprises the following steps: and the heat conduction oil is conveyed to a flue gas heat conduction oil heat exchanger through a heat conduction oil pump, and after being heated by high-temperature flue gas, the heat conduction oil enters a drying and sterilizing device for heating, then enters a 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: the normal temperature air enters a tail gas air waste heat exchanger for heat exchange and temperature rise, then 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 heat exchange and temperature reduction of the tail gas air waste heat exchanger; and pumping high-temperature flue gas generated in the carbonization furnace into a flue gas heat conduction oil heat exchanger, exchanging heat with low-temperature heat conduction oil, cooling, and discharging to a flue gas treatment module.
The pre-drying device, the carbonization furnace, the drying and sterilizing device and the cooling device are sequentially connected through the corresponding conveying devices, so that continuous production of the carbon-based fertilizer is facilitated, and the production efficiency of the carbon-based fertilizer is improved. Simultaneously, 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 above objects, features and advantages of the present invention more 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 that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of a carbon-based fertilizer production facility 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 collection system of the present invention.
In the figure:
the pre-drying device 1, the first material feeding port 11, the fourth conveying device 12, the carbonization furnace 2, the first conveying device 21, the drying and sterilizing device 3, the second conveying device 31, the second material feeding port 32, the fifth conveying device 33, the cooling device 4, the third conveying device 41, the heat conduction oil circulation system 5, the flue gas heat conduction oil heat exchanger 51, the heat conduction oil pump 52, the heat conduction oil pipeline interface 53, the tail gas collection system 6, the tail gas air waste heat exchanger 61, the first fan 62, the second fan 63, the air conveying pipeline 64 and the electric cabinet 7.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1, the present embodiment provides a carbon-based fertilizer production apparatus, 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 is provided with a second material inlet 32 for the addition material to enter; the cooling device 4 is connected with the drying and sterilizing device 3 through the third conveying device 41 and is used for cooling and outputting the dried and sterilized mixed materials.
In this embodiment, the raw materials may be agricultural and forestry waste (such as wood chips, rice hulls, straw, etc.), and the additives may be organic materials such as animal feces, algae, etc.; 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 raw material screw conveyor and then 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; the pre-dried raw materials are conveyed to a carbonization furnace feeding screw conveyor through a discharge port of a pre-drying device 1 by a belt conveyor and enter a carbonization furnace 2 for carbonization; the carbonized raw materials enter a drying and sterilizing device 3 through a carbonization furnace discharging screw conveyor, 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 on the other side; the mixed materials are conveyed to a cooling device 4 for cooling by a blade discharging screw conveyor, and then the carbon-based fertilizer is conveyed by a belt conveyor.
In this embodiment, the pre-drying device 1, the carbonization furnace 2, the drying and sterilizing device 3 and the cooling device 4 are respectively connected in sequence through corresponding conveying devices, which is beneficial to realizing continuous production of the carbon-based fertilizer so as to improve the production efficiency of the carbon-based fertilizer. Simultaneously, the carbon emission in the flue gas can be reduced, and the purpose of carbon fixation is achieved.
As shown in fig. 1 and 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; a heat conduction oil pump 52; and a conduction oil conveying pipeline, which connects the conduction oil pump 52, the flue gas conduction oil heat exchanger 51, the drying and sterilizing device 3 and the pre-drying device 1 in series; the heat conducting oil is conveyed to the smoke heat conducting oil heat exchanger 51 through the heat conducting oil pump 52, enters the drying and sterilizing device 3 for heating after being heated by high-temperature smoke, then enters the pre-drying device 1 for heating, and finally returns to the heat conducting oil pump 52 for circulation.
In the present embodiment, the heat conduction oil pump 52 feeds low temperature heat conduction oil into the flue gas heat conduction oil heat exchanger 51 to heat high temperature flue gas generated by the carbonization furnace 2; the heated high-temperature heat conduction oil is sequentially conveyed to the drying and sterilizing device 3 and the pre-drying device 1 through a heat conduction oil conveying pipeline by a heat conduction oil pump 52 so as to heat and dry the raw materials and the mixed materials to be dried in the drying and sterilizing device; the temperature of the conduction oil heated by the pre-drying device 1 is reduced, and the low-temperature conduction oil returns to the oil return groove at the conduction oil pump 52 for continuous circulation.
In the embodiment, the heat conduction oil circulation system 5 fully utilizes high-temperature flue gas which generates a large amount of heat energy in the original carbonization process of waste in the carbonization furnace 2, the heat energy in the high-temperature flue gas is transferred to heat conduction oil through the flue gas heat conduction oil heat exchanger 51, and raw materials and mixed materials in the drying and sterilizing device 3 and the pre-drying device 1 are heated, dried and sterilized through the heat conduction oil. In the production process, external energy is not needed to be used for providing heat 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 transfer oil inlet and outlet ends of the drying and sterilizing device 3 and the pre-drying device 1 are respectively provided with a heat transfer oil pipeline interface 53, and the heat transfer oil conveying pipelines are detachably connected through the heat transfer oil pipeline interfaces 53.
In this embodiment, the conduction oil delivery pipe is detachably connected through the conduction oil pipe interface 53, so as to facilitate disassembly and assembly of the pipe.
In this embodiment, as shown in fig. 1 and 3, the carbon-based fertilizer production apparatus further includes an exhaust 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; 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, exchanging heat with the low-temperature heat conduction oil, cooling and discharging.
In this embodiment, the waste heat in the tail gas generated in the drying and sterilizing device 3 can be recovered by the tail gas air waste heat exchanger 61, and the high-temperature flue gas generated after the tail gas is introduced into the carbonization furnace 2 for burning is discharged after being subjected to heat exchange and temperature reduction by the flue gas heat conduction oil heat exchanger 51, so that on one hand, environmental pollution caused by direct exhaust of the tail gas is avoided, on the other hand, the waste heat in the tail gas can be further utilized, and the heat energy conversion rate of the whole equipment is improved.
In this embodiment, the exhaust gas collecting system 6 further includes an air conveying pipe 64 connecting the exhaust gas air waste heat exchanger 61, the pre-drying device 1, and the drying and sterilizing device 3 in sequence; the normal temperature air enters the tail gas air waste heat exchanger 61 to be heated, and then sequentially enters the pre-drying device 1 and the drying and sterilizing device 3.
In the embodiment, the normal-temperature air passes through the pre-drying device 1 after being subjected to heat exchange and temperature rise by the tail gas, so that on one hand, the raw materials can be dried together in cooperation with the heat conduction oil, 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 suitable for cooling and outputting 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 the carbon-based fertilizer production equipment, reducing the labor cost and ensuring the stable quality of the product.
In this embodiment, the carbon-based fertilizer production apparatus further includes a fourth conveying device 12, configured to convey a raw material into the first material feed inlet 11; and a fifth conveying means 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 flue gas heat transfer oil heat exchanger 51 and the tail gas air waste heat exchanger 61 are all fixedly arranged in a container (20-ruler side-opening container 1, 40-ruler side-opening container 2), and 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, so that the equipment is assembled when in use, and the equipment can be disassembled after the use is finished and placed in the container. Therefore, the transportation of raw materials, leasing of a fixed site and the assembly cost of the whole equipment are saved, and the production efficiency is greatly improved.
Example 2
On the basis of the above embodiment, this embodiment also provides a continuous production method of carbon-based fertilizer, including: the raw materials are sent into a pre-drying device 1 through a first material feeding port 11 for pre-drying; the dried raw materials are sent 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 together with the additive materials sent into the drying and sterilizing device 3 through a second material feeding hole 32; the mixed material is sent to a cooling device 4 for cooling by a third conveying device 41 to generate a carbon-based fertilizer finished product.
In this embodiment, the feed inlets of raw materials and additive are respectively disposed at the pre-drying device 1 and the drying and sterilizing device 3, so that the raw materials and the additive can be processed by different procedures before drying and sterilizing, which is beneficial to realizing continuous production of carbon-based fertilizer.
In this embodiment, the carbon-based fertilizer continuous production method further includes: the heat conduction oil is conveyed to the smoke heat conduction oil heat exchanger 51 through the heat conduction oil pump 52, and after being heated by high-temperature smoke, 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 carbon-based fertilizer continuous production method further includes: the normal temperature air enters a tail gas air waste heat exchanger 61 to exchange heat and raise temperature, then 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 burning after being subjected to heat exchange and temperature reduction by 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 and then is discharged to the flue gas treatment module.
In this embodiment, after the tail gas after heat exchange and cooling is sent to the carbonization furnace 2 by the first fan 62 to be incinerated, the negative pressure generated in the air conveying pipeline 64 makes the normal temperature air enter the tail gas air waste heat exchanger 61 to exchange heat and heat, then enter the pre-drying device 1 to assist the high temperature heat conduction oil to dry and then take away the water vapor generated in the drying process, and then enter the drying and sterilizing device 3 to take away the high temperature tail gas generated in the drying and sterilizing process. The high-temperature flue gas generated by burning in the carbonization furnace 2 is used for heating the low-temperature heat conduction oil, and is treated by the flue gas treatment module and then is discharged cleanly.
In summary, the heat conduction oil circulation system 5 can make the whole equipment not need to provide heat energy by external energy sources in the production process, so that the energy consumption is reduced, the heat energy conversion efficiency of the whole equipment is improved, the energy is saved, and the effect of reducing carbon emission in the production process can be achieved. The waste heat exchanger 61 of the tail gas air can recover the waste heat in the tail gas generated in the drying and sterilizing device 3, and the tail gas is introduced into the carbonization furnace 2 to be burnt to generate high-temperature flue gas which is discharged after being subjected to heat exchange and temperature reduction by the flue gas heat conduction oil heat exchanger 51, so that on one hand, the environmental pollution caused by direct exhaust of the tail gas is avoided, on the other hand, the waste heat in the tail gas can be further utilized, and the heat energy conversion rate of the whole equipment is improved. The main equipment is fixed in the container, various pipelines, conveying devices and the like are detachably connected with the main equipment, so that the transportation of raw materials, leasing of a fixed site and the assembly cost of the whole equipment are saved, and the production efficiency is greatly improved.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (6)
1. A carbon-based fertilizer production facility, characterized by comprising:
the pre-drying device (1) is provided with a first material feeding hole (11) which 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 feed inlet (32) for the addition material to enter is arranged on the drying and sterilizing device;
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 materials;
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 thermally conductive oil pump (52); and a heat conduction oil conveying pipeline which connects the heat conduction oil pump (52), the flue gas heat conduction oil heat exchanger (51), the drying and sterilizing device (3) and the pre-drying device (1) in series; the heat conduction oil is conveyed to a smoke heat conduction oil heat exchanger (51) through a heat conduction oil pump (52), enters a drying and sterilizing device (3) for heating after being heated by high-temperature smoke, then enters a pre-drying device (1) for heating, and finally returns to the heat conduction oil pump (52) for circulation; the heat conduction oil inlet and outlet ends of the drying and sterilizing device (3) and the pre-drying device (1) are respectively provided with a heat conduction oil pipeline interface (53), and the heat conduction oil pipelines are detachably connected through the heat conduction oil pipeline interfaces (53);
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 into the carbonization furnace (2) from the tail gas air waste heat exchanger (61) for incineration; the second fan (63) is used for sucking high-temperature flue gas generated in the carbonization furnace (2) into the flue gas heat conduction oil heat exchanger (51), exchanging heat with low-temperature heat conduction oil, cooling and discharging; and an air conveying pipeline (64) for connecting the tail gas air waste heat exchanger (61), the pre-drying device (1) and the drying and sterilizing device (3) in sequence; after the temperature of the normal-temperature air enters a tail gas air waste heat exchanger (61), the normal-temperature air sequentially enters a pre-drying device (1) and a drying and sterilizing device (3).
2. The carbon-based fertilizer production facility according to claim 1, wherein,
the cooling device (4) is a cooling screw conveyor and is suitable for cooling and outputting the dried and sterilized mixed materials.
3. The carbon-based fertilizer production facility of claim 1, further comprising:
a fourth conveying device (12) for conveying raw materials into the first material feed port (11); and
and a fifth conveying device (33) for conveying the additive into the second material inlet (32).
4. A carbon-based fertilizer continuous production method of the carbon-based fertilizer production equipment as claimed in claim 1, characterized by comprising:
the raw materials are sent into a pre-drying device (1) through a first material feeding port (11) for pre-drying;
the dried raw materials are sent into a carbonization furnace (2) through a first conveying device (21) to be carbonized;
sending the carbonized raw materials into a drying and sterilizing device (3) through a second conveying device (31), and drying, sterilizing and mixing the carbonized raw materials and the additive materials sent into the drying and sterilizing device (3) through a second material feeding hole (32);
and (3) conveying the mixed material into a cooling device (4) through a third conveying device (41) to be cooled to generate a carbon-based fertilizer finished product.
5. The continuous production method of carbon-based fertilizer according to claim 4, further comprising:
the heat conduction oil is conveyed to the smoke heat conduction oil heat exchanger (51) through the heat conduction oil pump (52), and after being heated by high-temperature smoke, 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.
6. The continuous production method of carbon-based fertilizer according to claim 5, further comprising:
the normal temperature air enters a tail gas air waste heat exchanger (61) for heat exchange and temperature rise, then 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 of the tail gas air waste heat exchanger (61);
high-temperature flue gas generated in the carbonization furnace (2) is pumped into a flue gas heat conduction oil heat exchanger (51), and is discharged to a flue gas treatment module after heat exchange and temperature reduction with low-temperature heat conduction oil.
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| CN202210704441.4A CN115124375B (en) | 2022-06-21 | 2022-06-21 | Carbon-based fertilizer production equipment and continuous production method thereof |
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| CN202210704441.4A CN115124375B (en) | 2022-06-21 | 2022-06-21 | Carbon-based fertilizer production equipment and continuous production method thereof |
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| CN115124375B true CN115124375B (en) | 2024-03-12 |
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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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2022
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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