CN221156529U - Spray granulation system - Google Patents
Spray granulation system Download PDFInfo
- Publication number
- CN221156529U CN221156529U CN202323182921.8U CN202323182921U CN221156529U CN 221156529 U CN221156529 U CN 221156529U CN 202323182921 U CN202323182921 U CN 202323182921U CN 221156529 U CN221156529 U CN 221156529U
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- Prior art keywords
- spray
- feeding
- drying tower
- heat recovery
- spray drying
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- 239000007921 spray Substances 0.000 title claims abstract description 39
- 238000005469 granulation Methods 0.000 title claims abstract description 32
- 230000003179 granulation Effects 0.000 title claims abstract description 32
- 239000007789 gas Substances 0.000 claims abstract description 47
- 238000001694 spray drying Methods 0.000 claims abstract description 33
- 238000011084 recovery Methods 0.000 claims abstract description 32
- 239000002918 waste heat Substances 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 26
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000428 dust Substances 0.000 claims description 20
- 238000005507 spraying Methods 0.000 claims description 14
- 238000007599 discharging Methods 0.000 claims description 13
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 abstract description 16
- 239000002245 particle Substances 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The utility model relates to the technical field of granulating systems, in particular to a spray granulating system, which comprises a spray drying tower, a hot blast stove, a storage bin, a waste heat recovery device and a blower, wherein the top of the spray drying tower is provided with a feeding device and a hot blast inlet, the hot blast inlet is communicated with the hot blast stove through an induced air pipe, the feeding device is connected with a diaphragm pump through a pressure stabilizing tank, and the diaphragm pump is connected with a feeding main pipe; a material outlet is arranged at the bottom of the spray drying tower and is connected with a storage bin; the side of spray drying tower is equipped with the tail gas export, the tail gas export is connected with waste heat recovery device, the air-blower is connected with waste heat recovery device. The utility model reduces the fluctuation of spray pressure, the fluctuation of the water content and the particle distribution of the powder, ensures that the quality of the product obtained by spray granulation is good, and reduces the waste of the material obtained by granulation.
Description
Technical Field
The utility model relates to the technical field of granulation systems, in particular to a spray granulation system.
Background
The spray granulation process is a process in which slurry is subjected to an atomizer to quickly dry slurry droplets into granular particles. Spray granulation is widely used not only in the traditional ceramic, organic and inorganic chemical industry, powder metallurgy, food and pharmaceutical industries, but also in various modern electronic and functional ceramic industries. The spraying pressure in the spraying granulation process is the power for providing slurry atomization, and the fluctuation of the spraying pressure directly influences the atomization angle and slurry spraying flow, so that the water content and particle distribution of the powder are influenced, and finally, adverse hidden danger is brought to the compression of the powder.
Diaphragm pumps rely on the back and forth reciprocating motion of a diaphragm to vary the working chamber volume to draw in and expel fluid. The spraying pressure and flow rate generated by the operation of the diaphragm pump always have fluctuation, which brings a certain quality hidden trouble to the powder sprayed and granulated.
In addition, in the current spray granulation system, certain defects exist in waste heat recovery and light material recovery.
Disclosure of Invention
The utility model aims at solving the problems and provides a spray granulation system which has small fluctuation of spray pressure and small fluctuation of water content and particle distribution of material powder, so that the quality of a product obtained by spray granulation is good, and the waste of materials obtained by granulation can be reduced.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the spray granulation system comprises a spray drying tower, a hot blast stove, a storage bin, a waste heat recovery device and a blower, wherein the top of the spray drying tower is provided with a feeding device and a hot blast inlet, the hot blast inlet is communicated with the hot blast stove through an induced air pipe, the feeding device is connected with a diaphragm pump through a pressure stabilizing tank, and the diaphragm pump is connected with a feeding main pipe; a material outlet is arranged at the bottom of the spray drying tower and is connected with a storage bin; the side of spray drying tower is equipped with the tail gas export, the tail gas export is connected with waste heat recovery device, the air-blower is connected with waste heat recovery device.
In the utility model, further, the tail gas outlet of the spray drying tower is also connected with the waste heat recovery device through a cyclone separator; the cyclone separator is characterized in that a receiving bin is arranged at the bottom of the cyclone separator, the receiving bin is communicated with the storage bin through a material conveying pipeline, and a negative pressure induced draft fan is arranged on the material conveying pipeline so as to convey materials in the receiving bin into the storage bin.
In the utility model, the pressure stabilizing tank further comprises a tank body, wherein the top of the tank body is provided with a pressure gauge, the lower end of the side surface of the tank body is connected with a discharging pipe, and the discharging pipe is connected with a feeding device; the bottom of the tank body is connected with a feeding pipe, a branch pipe is communicated with the side wall of the feeding pipe, and an inflation valve is arranged on the branch pipe; the feed pipe is connected with the diaphragm pump.
In the utility model, further, the pressure stabilizing tank is a stainless steel gas tank.
In the utility model, further, the feeding device comprises a feeding spray gun, and the discharging pipe of the surge tank is connected with the feeding spray gun.
In the utility model, further, the top of the cyclone separator is also connected with a dust remover so that the separated gas enters the dust remover for dust removal.
In the utility model, further, a gas inlet is arranged on the side wall of the bottom end of the dust remover, the gas inlet is communicated with a gas outlet of the cyclone separator, a spraying device is arranged at the upper end of the inner cavity of the dust remover, the spraying device is connected with a water pump through a pipeline, and a clean gas outlet is arranged at the top of the dust remover.
By adopting the technical scheme, the utility model has the following beneficial effects:
According to the utility model, the spray drying tower, the hot blast stove, the storage bin, the waste heat recovery device and the blower are arranged, and the top feeding device of the spray drying tower is connected with the diaphragm pump through the pressure stabilizing tank, so that the fluctuation of spray pressure is small, the fluctuation of water content and particle distribution of the powder is small, and the quality of a product obtained by spray granulation is good. In addition, the tail gas outlet of the spray drying tower is also connected with a waste heat recovery device through a cyclone separator; the bottom of cyclone is equipped with connects the feed bin, connects the feed bin to connect the material in the feed bin to send into in the storage silo with connecing the material in the feed bin through defeated material pipeline intercommunication, improved the recycle rate of material in the tail gas, reduced the waste of spray drying obtained powder.
Drawings
FIG. 1 is a schematic diagram of a spray granulation system according to embodiment 1 of the present utility model;
fig. 2 is a schematic structural diagram of a spray granulation system according to embodiment 2 of the present utility model.
The reference numerals in the drawings are: the device comprises a 1-gas hot blast stove, a 2-spray drying tower, a 21-feeding device, a 22-hot blast inlet, a 23-material outlet, a 24-tail gas outlet, a 3-storage bin, a 4-waste heat recovery device, a 5-blower, a 6-surge tank, a 61-tank body, a 62-pressure gauge, a 63-discharging pipe, a 64-feeding pipe, a 65-branch pipe, a 7-diaphragm pump, an 8-feeding main pipe, a 9-cyclone separator, a 91-storage bin and a 92-negative pressure induced draft fan; 10-dust remover, 101-spray set.
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.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Example 1
Referring to fig. 1, a spray granulation system comprises a spray drying tower 2, a gas hot blast stove 1, a storage bin 3, a waste heat recovery device 4 and a blower 5, wherein a feeding device 21 and a hot air inlet 22 are arranged at the top of the spray drying tower 2, the hot air inlet 22 is communicated with the gas hot blast stove 1 through an induced air pipe, the feeding device 21 is connected with a diaphragm pump 7 through a pressure stabilizing tank 6, and the diaphragm pump 7 is connected with a feeding main pipe 8; a material outlet 23 is arranged at the bottom of the spray drying tower 2, and the material outlet 23 is connected with the storage bin 3; the side of the spray drying tower 2 is provided with a tail gas outlet 24, the tail gas outlet 24 is connected with the waste heat recovery device 4, and the blower 5 is connected with the waste heat recovery device 4.
In this embodiment, the tail gas outlet 24 of the spray drying tower 2 is further connected to the waste heat recovery device 4 through a cyclone 9. The bottom of the cyclone separator 9 is provided with a receiving bin 91, and the top of the cyclone separator 9 is provided with a gas outlet. Because there may be some powder flowing out along with the tail gas in the tail gas outlet 24 of the spray drying tower 2, the powder flowing out along with the tail gas can be recovered by the arrangement of the cyclone separator 9, and the waste of the powder obtained by spray drying is reduced.
The waste heat recovery device 4 in this embodiment may adopt a waste heat recovery mechanism in the prior art, such as the waste heat recovery mechanism mentioned in the chinese patent application number 202120711845.7, so the structure of the waste heat recovery device 4 is not described herein.
In this embodiment, the surge tank 6 is a stainless steel tank with high strength and long service life. The pressure stabilizing tank 6 comprises a tank body 61, a pressure gauge 62 is arranged at the top of the tank body 61, a discharging pipe 63 is connected to the lower end of the side surface of the tank body 61, and the discharging pipe 63 is connected with the feeding device 21; the bottom of the tank body 61 is connected with a feed pipe 64, a branch pipe 65 is communicated with the side wall of the feed pipe 64, and an inflation valve is arranged on the branch pipe 65; the feed pipe 64 is connected to the diaphragm pump 7. When the spray granulation device is used, firstly, the inflation valve is opened to inflate the surge tank 6, and after inflation is completed, the diaphragm pump 7 is started to start spray granulation. Along with the loss of nitrogen, the nitrogen is supplemented when the pressure fluctuation is large, and the pressure fluctuation displayed by the pressure gauge is observed to be small, so that the condition of the pressure fluctuation is greatly improved. The setting of the pressure stabilizing tank 6 ensures that the fluctuation of spray pressure is small, the fluctuation of the water content and the particle distribution of the powder is small, and the quality of the product obtained by spray granulation is good.
In this embodiment, the feeding device 21 includes a feeding lance, and the discharging pipe 63 of the surge tank 6 is connected to the feeding lance.
Example 2
Referring to fig. 2, a spray granulation system comprises a spray drying tower 2, a gas hot blast stove 1, a storage bin 3, a waste heat recovery device 4 and a blower 5, wherein a feeding device 21 and a hot air inlet 22 are arranged at the top of the spray drying tower 2, the hot air inlet 22 is communicated with the gas hot blast stove 1 through an induced air pipe, the feeding device 21 is connected with a diaphragm pump 7 through a pressure stabilizing tank 6, and the diaphragm pump 7 is connected with a feeding main pipe 8; a material outlet 23 is arranged at the bottom of the spray drying tower 2, and the material outlet 23 is connected with the storage bin 3; the side of the spray drying tower 2 is provided with a tail gas outlet 24, the tail gas outlet 24 is connected with the waste heat recovery device 4, and the blower 5 is connected with the waste heat recovery device 4.
In this embodiment, the tail gas outlet 24 of the spray drying tower 2 is further connected to the waste heat recovery device 4 through a cyclone 9. The bottom of the cyclone separator 9 is provided with a receiving bin 91, the receiving bin 91 is communicated with the storage bin 3 through a material conveying pipeline, and a negative pressure induced draft fan 92 is arranged on the material conveying pipeline so as to convey the materials in the receiving bin 91 into the storage bin 3; the top of the cyclone separator 9 is provided with a gas outlet. Because there may be some powder in the tail gas outlet 24 of the spray drying tower 2 flowing out along with the tail gas, through the arrangement of this cyclone separator 9, the powder flowing out along with the tail gas can be recovered, and then the recovered powder is sent into the storage bin 3 through the material conveying pipeline and the negative pressure induced draft fan 92, so that the waste of the powder obtained by spray drying is reduced.
The waste heat recovery device 4 in this embodiment may adopt a waste heat recovery mechanism in the prior art, such as the waste heat recovery mechanism mentioned in the chinese patent application number 202120711845.7, so the structure of the waste heat recovery device 4 is not described herein.
In this embodiment, the surge tank 6 is a stainless steel tank with high strength and long service life. The pressure stabilizing tank 6 comprises a tank body 61, a pressure gauge 62 is arranged at the top of the tank body 61, a discharging pipe 63 is connected to the lower end of the side surface of the tank body 61, and the discharging pipe 63 is connected with the feeding device 21; the bottom of the tank body 61 is connected with a feed pipe 64, a branch pipe 65 is communicated with the side wall of the feed pipe 64, and an inflation valve is arranged on the branch pipe 65; the feed pipe 64 is connected to the diaphragm pump 7. When the spray granulation device is used, firstly, the inflation valve is opened to inflate the surge tank 6, and after inflation is completed, the diaphragm pump 7 is started to start spray granulation. With the loss of nitrogen, the nitrogen is replenished when the pressure fluctuation is large, and the pressure fluctuation displayed by the pressure gauge 62 is observed to be small, so that the condition of the pressure fluctuation is greatly improved. The setting of the pressure stabilizing tank 6 ensures that the fluctuation of spray pressure is small, the fluctuation of the water content and the particle distribution of the powder is small, and the quality of the product obtained by spray granulation is good.
In this embodiment, the feeding device 21 includes a feeding lance, and the discharging pipe 63 of the surge tank 6 is connected to the feeding lance.
In this embodiment, the gas outlet at the top of the cyclone separator 9 is further connected to the dust collector 10, so that the separated gas enters the dust collector 10 for dust removal. The side wall of the bottom end of the dust remover 10 is provided with a gas inlet which is communicated with a gas outlet of the cyclone separator 9, the upper end of the inner cavity of the dust remover 10 is provided with a spraying device 101, and the spraying device 101 adopts the existing spraying device, so that the structure of the spraying device is not repeated here. The spraying device 101 is connected with a water pump through a pipeline, and a clean gas outlet is arranged at the top of the dust remover 10. The air pollution can be reduced after the gas separated by the cyclone separator 9 enters the dust remover 10 for further treatment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Claims (7)
1. A spray granulation system, characterized by: the device comprises a spray drying tower, a hot blast stove, a storage bin, a waste heat recovery device and a blower, wherein the top of the spray drying tower is provided with a feeding device and a hot blast inlet, the hot blast inlet is communicated with the hot blast stove through an induced air pipe, the feeding device is connected with a diaphragm pump through a pressure stabilizing tank, and the diaphragm pump is connected with a feeding main pipe; a material outlet is arranged at the bottom of the spray drying tower and is connected with a storage bin; the side of spray drying tower is equipped with the tail gas export, the tail gas export is connected with waste heat recovery device, the air-blower is connected with waste heat recovery device.
2. A spray granulation system as defined in claim 1, wherein: the tail gas outlet of the spray drying tower is connected with the waste heat recovery device through a cyclone separator; the cyclone separator is characterized in that a receiving bin is arranged at the bottom of the cyclone separator, the receiving bin is communicated with the storage bin through a material conveying pipeline, and a negative pressure induced draft fan is arranged on the material conveying pipeline so as to convey materials in the receiving bin into the storage bin.
3. A spray granulation system as defined in claim 1, wherein: the pressure stabilizing tank comprises a tank body, a pressure gauge is arranged at the top of the tank body, a discharging pipe is connected to the lower end of the side face of the tank body, and the discharging pipe is connected with a feeding device; the bottom of the tank body is connected with a feeding pipe, a branch pipe is communicated with the side wall of the feeding pipe, and an inflation valve is arranged on the branch pipe; the feed pipe is connected with the diaphragm pump.
4. A spray granulation system as claimed in claim 3, wherein: the pressure stabilizing tank is a stainless steel gas tank.
5. A spray granulation system as claimed in claim 3, wherein: the feeding device comprises a feeding spray gun, and a discharging pipe of the pressure stabilizing tank is connected with the feeding spray gun.
6. A spray granulation system as claimed in claim 2, wherein: the top of the cyclone separator is also connected with a dust remover so that the separated gas enters the dust remover for dust removal.
7. A spray granulation system according to claim 6, wherein: the side wall of the bottom end of the dust remover is provided with a gas inlet which is communicated with a gas outlet of the cyclone separator, the upper end of the inner cavity of the dust remover is provided with a spraying device, the spraying device is connected with a water pump through a pipeline, and the top of the dust remover is provided with a clean gas outlet.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221156529U true CN221156529U (en) | 2024-06-18 |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |