CN220405553U - High-efficiency energy-saving spray granulation system - Google Patents
High-efficiency energy-saving spray granulation system Download PDFInfo
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- CN220405553U CN220405553U CN202323532121.4U CN202323532121U CN220405553U CN 220405553 U CN220405553 U CN 220405553U CN 202323532121 U CN202323532121 U CN 202323532121U CN 220405553 U CN220405553 U CN 220405553U
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- spray drying
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- 239000007921 spray Substances 0.000 title claims abstract description 48
- 238000005469 granulation Methods 0.000 title claims abstract description 15
- 230000003179 granulation Effects 0.000 title claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 54
- 238000001694 spray drying Methods 0.000 claims abstract description 54
- 239000000428 dust Substances 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000003756 stirring Methods 0.000 claims abstract description 13
- 238000011084 recovery Methods 0.000 claims description 33
- 239000002918 waste heat Substances 0.000 claims description 31
- 239000000843 powder Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000000463 material Substances 0.000 description 15
- 238000005265 energy consumption Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000004064 recycling Methods 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000009270 solid waste treatment Methods 0.000 description 2
- 238000005467 ceramic manufacturing process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a high-efficiency energy-saving spray granulation system, which comprises a hot blast stove, a spray drying tower, a cyclone separator, a dust remover, a compressed air storage tank and a raw material stirring tank; the outlet of the hot blast stove is connected with an inlet pipeline of a hot blast distributor through a filter, the outlet of the hot blast distributor is connected with an air inlet pipeline of a spray drying tower, a dust outlet of the spray drying tower is connected with an inlet pipeline of a cyclone separator, an air outlet of the cyclone separator is connected with an inlet pipeline of a dust remover, and an outlet of the dust remover is connected with an exhaust pipeline; the inside of spray drying tower is fixed with the raw materials spray gun, and the export of compressed air storage tank passes through heating coil and the air intake pipeline connection of raw materials spray gun, and heating coil arranges in the pipeline between cyclone and the dust remover, and the export of raw materials agitator tank passes through feed pump and the feed inlet pipeline connection of raw materials spray gun, and the export of raw materials spray gun sets up towards the top of spray drying tower.
Description
Technical Field
The utility model relates to the technical field of spray granulation, in particular to a high-efficiency energy-saving spray granulation system.
Background
Spray drying equipment in ceramic factories employs spray drying towers with pressure nozzle atomizers, whose hot air systems generally comprise: the hot air system is used for providing hot air for the spray drying tower, the hot air meets raw material fog drops in the spray drying tower, so that most of moisture in the raw materials is evaporated to form spherical-like powder for dry compression molding, the cyclone collector is used for collecting spray powder which cannot meet the granularity requirement in the production process, the traditional spray granulation is an energy consumption process which is only inferior to firing in the ceramic manufacturing process and occupies more than 30% of comprehensive energy consumption, cyclone materials generated in the manufacturing process are difficult to treat and pollute the environment, and the like, so that the consumption of energy sources of the spray drying tower and the recycling of the cyclone materials are reduced, and the method has important significance for low-carbon manufacturing of ceramic production.
The traditional spray drying tower has high energy consumption, most of the reasons are low waste heat recovery utilization rate, the outlet temperature of the spray drying tower is not effectively utilized, especially the outdoor temperature is low in winter, and more heat is needed to preheat materials before the materials enter the spray drying tower so as to reach a process set value; on one hand, cyclone materials of the spray drying tower are added into a proportioning and grinding system of the front section according to a proportion and then are subjected to spray granulation again, on the other hand, the cyclone materials are used as solid waste treatment, the treatment method of the front section of the cyclone materials needs to be added with storage and conveying equipment and reasonable proportioning, the cost and the consumption are high in the treatment process, the recovery rate is low, the pollution-free green treatment is difficult to achieve at present as the solid waste treatment, and the treatment cost of the solid waste is high.
Disclosure of Invention
The utility model aims to provide a high-efficiency energy-saving spray granulation system which is used for solving the technical problems in the prior art.
The utility model is implemented by the following technical scheme: the high-efficiency energy-saving spray granulation system comprises a hot blast stove, a spray drying tower, a cyclone separator, a dust remover, a compressed air storage tank and a raw material stirring tank;
the outlet of the hot blast stove is connected with an inlet pipeline of a hot blast distributor through a filter, the outlet of the hot blast distributor is connected with an air inlet pipeline of the spray drying tower, a dust outlet of the spray drying tower is connected with an inlet pipeline of the cyclone separator, an air outlet of the cyclone separator is connected with an inlet pipeline of the dust remover, and an outlet of the dust remover is connected with an exhaust pipeline;
the inside of spray drying tower is fixed with the raw materials spray gun, the export of compressed air storage tank pass through heating coil with the air intake pipeline connection of raw materials spray gun, heating coil arranges in cyclone with in the pipeline between the dust remover, the export of raw materials agitator tank pass through the feed pump with the feed inlet pipeline connection of raw materials spray gun, the export of raw materials spray gun sets up towards the top of spray drying tower.
Further, the exhaust pipeline is communicated with a first waste heat recovery pipeline, an outlet of the first waste heat recovery pipeline is connected with a heat medium inlet pipeline of the preheater, and an air outlet of the preheater is connected with an inlet pipeline of the hot blast stove through a draught fan.
Further, the exhaust pipeline is communicated with a second waste heat recovery pipeline, an outlet of the second waste heat recovery pipeline is connected with an air inlet pipeline of a feeder through a powder return fan, a powder outlet at the bottom end of the cyclone separator is connected with a feed inlet pipeline of the feeder, a powder outlet of the feeder is connected with a cyclone spray gun pipeline inside the spray drying tower, the cyclone spray gun is arranged below the raw material spray gun, and an outlet of the cyclone spray gun is arranged towards the top of the spray drying tower.
Further, a third waste heat recovery pipeline is communicated with a pipeline between the powder return fan and the feeder, an outlet of the third waste heat recovery pipeline is connected with a heat medium inlet pipeline of the plate heat exchanger, a water inlet of the plate heat exchanger is connected with an outlet pipeline of a water jacket of the raw material stirring tank, and an inlet of the water jacket of the raw material stirring tank is connected with a water outlet pipeline of the plate heat exchanger.
The utility model has the advantages that: under the action of the first waste heat recovery pipeline, the second waste heat recovery pipeline and the third waste heat recovery pipeline, when the outdoor temperature is lower in winter, heat in hot air discharged from the spray drying tower exchanges heat with air, raw materials and compressed air, preheating of the air, the raw materials and the compressed air and recycling of the heat in the hot air are realized, the energy consumption of the spray drying tower is reduced, and the stability of the internal temperature of the spray drying tower is ensured; meanwhile, hot air discharged by the spray drying tower is used for conveying cyclone materials, a semi-closed circulation system is formed, the cyclone materials and raw materials are agglomerated again, the treatment difficulty of the cyclone materials is solved, the energy consumption of the spray drying tower and the recycling of the cyclone materials are reduced, and the method has important significance for low-carbon manufacturing of ceramic production.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the utility model;
in the figure: the hot blast stove comprises a hot blast stove 1, a filter 2, a hot blast distributor 3, a spray drying tower 4, a cyclone 5, a dust remover 6, an exhaust pipeline 7, a first waste heat recovery pipeline 8, a preheater 9, an induced draft fan 10, a raw material spray gun 11, a heating coil 12, a raw material stirring tank 13, a feed pump 14, a second waste heat recovery pipeline 15, a powder return fan 16, a feeder 17, a cyclone spray gun 18, a third waste heat recovery pipeline 19, a plate heat exchanger 20, a water jacket 21 and a compressed air storage tank 22.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the high-efficiency energy-saving spray granulation system comprises a hot blast stove 1, a spray drying tower 4, a cyclone separator 5, a dust remover 6, a compressed air storage tank 22 and a raw material stirring tank 13;
the outlet of the hot blast stove 1 is connected with an inlet pipeline of a hot blast distributor 3 through a filter 2, the outlet of the hot blast distributor 3 is connected with an air inlet pipeline of a spray drying tower 4, a dust outlet of the spray drying tower 4 is connected with an inlet pipeline of a cyclone separator 5, an air outlet of the cyclone separator 5 is connected with an inlet pipeline of a dust remover 6, an outlet of the dust remover 6 is connected with an exhaust pipeline 7, a first waste heat recovery pipeline 8 is communicated with the exhaust pipeline 7, an outlet of the first waste heat recovery pipeline 8 is connected with a heat medium inlet pipeline of a preheater 9, and an air outlet of the preheater 9 is connected with an inlet pipeline of the hot blast stove 1 through a draught fan 10.
The hot air discharged from the spray drying tower 4 is mixed with part of powder which does not meet the particle size requirement, the powder enters the cyclone separator 5, the cyclone separator 5 collects the part of powder into a bottom hopper of the cyclone separator 5, the hot air treated by the cyclone separator 5 is sent to the dust remover 6 to recycle finer dust in the hot air, the hot air treated by the dust remover 6 is discharged to the exhaust pipeline 7, and because the hot air in the exhaust pipeline 7 also contains a large amount of heat, part of the hot air is used for heating the air sent into the hot air furnace 1, specifically, the hot air exchanges heat with the air in the preheater 9, the air after heat exchange is sent into the hot air furnace 1, and the heating energy consumption of the air is reduced due to the preheating of the air, the hot air in the first waste heat recovery pipeline 8 plays a role in air preheating, the hot air treated by the hot air furnace 1 is sent into the spray drying tower 4 through the hot air distributor 3, and the hot air and raw materials are exchanged in the spray drying tower 4, so that the heating and granulating functions of raw materials are realized.
The inside of spray drying tower 4 is fixed with raw materials spray gun 11, and the export of compressed air storage tank 22 passes through heating coil 12 and raw materials spray gun 11's air intake pipeline connection, and heating coil 12 is arranged in the pipeline between cyclone 5 and dust remover 6, and the export of raw materials agitator tank 13 passes through feed pump 14 and raw materials spray gun 11's feed inlet pipeline connection, and the export of raw materials spray gun 11 sets up towards spray drying tower 4's top.
The compressed gas required by the raw material spray gun 11 is sent into the heating coil 12 to exchange heat with hot air exhausted by the cyclone separator 5, the temperature of the compressed air after heat exchange is increased, the stability of the internal environment temperature of the spray drying tower 4 is facilitated, the energy consumption of the spray drying tower is reduced, the compressed gas is mixed with raw materials and then sent into the spray drying tower 4 to contact with hot air, and most of moisture in the raw materials is evaporated to form spherical-like powder for dry compression molding.
The exhaust pipeline 7 is communicated with a second waste heat recovery pipeline 15, an outlet of the second waste heat recovery pipeline 15 is connected with an air inlet pipeline of a feeder 17 through a powder return fan 16, a powder outlet at the bottom end of the cyclone separator 5 is connected with a feed inlet pipeline of the feeder 17, a powder outlet of the feeder 17 is connected with a cyclone spray gun 18 pipeline inside the spray drying tower 4, the cyclone spray gun 18 is arranged below the raw material spray gun 11, an outlet of the cyclone spray gun 18 is arranged towards the top of the spray drying tower 4, primary spray raw materials of the cyclone spray gun 11 are agglomerated again, cyclone on-line recovery is achieved, and the granulation is participated again to meet the requirement of product granularity, and the second waste heat recovery pipeline 15 ensures that the cyclone enters the spray drying tower 4 for temperature, and has a certain conveying pressure.
The pipeline between the powder return fan 16 and the feeder 17 is communicated with a third waste heat recovery pipeline 19, the outlet of the third waste heat recovery pipeline 19 is connected with a heat medium inlet pipeline of the plate heat exchanger 20, the water inlet of the plate heat exchanger 20 is connected with an outlet pipeline of a water jacket 21 of the raw material stirring tank 13, the inlet of the water jacket 21 of the raw material stirring tank 13 is connected with a water outlet pipeline of the plate heat exchanger 20, and after heat exchange between hot air in the third waste heat recovery pipeline 19 and water is carried out through the plate heat exchanger 20, the hot air is supplied to the water jacket 21 of the raw material stirring tank 13 for use, and the raw material temperature of the raw material stirring tank 13 is regulated, so that the raw material is heated, and the energy consumption of the raw material consumed by the heating in the spray drying tower 4 is further reduced.
Under the action of the first waste heat recovery pipeline 8, the second waste heat recovery pipeline 15 and the third waste heat recovery pipeline 19, when the outdoor temperature is low in winter, heat in hot air discharged from the spray drying tower 4 exchanges heat with air, raw materials and compressed air, preheating of the air, the raw materials and the compressed air and recycling of the heat in the hot air are realized, the energy consumption of the spray drying tower 4 is reduced, and the stability of the internal temperature of the spray drying tower 4 is ensured; meanwhile, hot air discharged by the spray drying tower 4 is used for conveying cyclone materials, a semi-closed circulation system is formed, the cyclone materials and raw materials are agglomerated again, the treatment difficulty of the cyclone materials is solved, the energy consumption of the spray drying tower and the recycling of the cyclone materials are reduced, and the method has important significance for low-carbon manufacturing in ceramic production.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (4)
1. The high-efficiency energy-saving spray granulation system is characterized by comprising a hot blast stove, a spray drying tower, a cyclone separator, a dust remover, a compressed air storage tank and a raw material stirring tank;
the outlet of the hot blast stove is connected with an inlet pipeline of a hot blast distributor through a filter, the outlet of the hot blast distributor is connected with an air inlet pipeline of the spray drying tower, a dust outlet of the spray drying tower is connected with an inlet pipeline of the cyclone separator, an air outlet of the cyclone separator is connected with an inlet pipeline of the dust remover, and an outlet of the dust remover is connected with an exhaust pipeline;
the inside of spray drying tower is fixed with the raw materials spray gun, the export of compressed air storage tank pass through heating coil with the air intake pipeline connection of raw materials spray gun, heating coil arranges in cyclone with in the pipeline between the dust remover, the export of raw materials agitator tank pass through the feed pump with the feed inlet pipeline connection of raw materials spray gun, the export orientation of raw materials spray gun the top setting of spray drying tower.
2. The efficient and energy-saving spray granulation system according to claim 1, wherein the exhaust pipeline is communicated with a first waste heat recovery pipeline, an outlet of the first waste heat recovery pipeline is connected with a heat medium inlet pipeline of a preheater, and an air outlet of the preheater is connected with an inlet pipeline of the hot blast stove through a draught fan.
3. The efficient and energy-saving spray granulation system according to claim 1 or 2, wherein a second waste heat recovery pipeline is communicated with the exhaust pipeline, an outlet of the second waste heat recovery pipeline is connected with an air inlet pipeline of a feeder through a powder return fan, a powder outlet at the bottom end of the cyclone separator is connected with a feed inlet pipeline of the feeder, a powder outlet of the feeder is connected with a cyclone spray gun pipeline inside the spray drying tower, the cyclone spray gun is arranged below the raw material spray gun, and an outlet of the cyclone spray gun is arranged towards the top of the spray drying tower.
4. The efficient and energy-saving spray granulation system according to claim 3, wherein a third waste heat recovery pipeline is communicated with a pipeline between the powder return fan and the feeder, an outlet of the third waste heat recovery pipeline is connected with a heat medium inlet pipeline of the plate heat exchanger, a water inlet of the plate heat exchanger is connected with an outlet pipeline of a water jacket of the raw material stirring tank, and an inlet of the water jacket of the raw material stirring tank is connected with a water outlet pipeline of the plate heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323532121.4U CN220405553U (en) | 2023-12-25 | 2023-12-25 | High-efficiency energy-saving spray granulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323532121.4U CN220405553U (en) | 2023-12-25 | 2023-12-25 | High-efficiency energy-saving spray granulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220405553U true CN220405553U (en) | 2024-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323532121.4U Active CN220405553U (en) | 2023-12-25 | 2023-12-25 | High-efficiency energy-saving spray granulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220405553U (en) |
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2023
- 2023-12-25 CN CN202323532121.4U patent/CN220405553U/en active Active
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