CN210993038U - Spray reactor and air-flowing type spray drying calcining equipment - Google Patents
Spray reactor and air-flowing type spray drying calcining equipment Download PDFInfo
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- CN210993038U CN210993038U CN201921676326.0U CN201921676326U CN210993038U CN 210993038 U CN210993038 U CN 210993038U CN 201921676326 U CN201921676326 U CN 201921676326U CN 210993038 U CN210993038 U CN 210993038U
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Abstract
The utility model relates to the technical field of drying and calcining equipment, in particular to a spray reactor and an airflow type spray drying and calcining equipment, wherein the top end of the spray reactor is provided with a liquid spraying device, a hot air inlet and a hot air outlet, the bottom end of the spray reactor is provided with a material outlet, the hot air inlet is connected with a hot air channel, hot air blown by the hot air channel dries the material drops sprayed into the spray reactor by the liquid spraying device through the hot air inlet into powder, a burner for calcining the dried powder is arranged on the periphery inside the spray reactor, the airflow type spray drying and calcining equipment comprises the spray reactor, a material liquid supply device, a cyclone dust collector and a cloth bag dust collector, the utility model atomizes various mixed material liquids through the airflow type atomizer, in a working volume body, spray drying, calcining and reaction are integrally completed, and the process is simple; moreover, repeated heating and cooling are not needed, and the energy consumption is low; the equipment integrates, practices thrift the cost.
Description
Technical Field
The utility model relates to a drying and calcining equipment technical field, in particular to spray reactor and air current formula spray drying and calcining equipment.
Background
The existing equipment on the market at present needs to obtain a reaction substance, and generally needs to be completed by two steps to three steps, for example, lithium iron phosphate in new energy industry generally needs to calcine dihydrate ferric phosphate into anhydrous ferric phosphate at 650 ℃, then lithium carbonate and glucose are added to mix into a mixed liquid, then spray drying is carried out, and the dried powder is calcined at high temperature of 700 ℃ to generate lithium iron phosphate. The process is not only complicated, but also extremely wastes energy consumption of repeated heating and cooling, and has large equipment investment and poor comprehensive competitiveness of product markets.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that the treatment process is loaded down with trivial details that prior art exists, the utility model provides a accomplish drying, micronize, calcine in spray reactor and air-flowing spray drying calcination equipment of an organic whole.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a spray reactor, spray reactor top be equipped with liquid and spout the material device, hot-blast inlet hole and hot air exitus in spray reactor's barrel upper end, spray reactor bottom has the material export, hot-blast inlet hole is connected with hot-blast passageway, hot-blast process hot-blast inlet hole that hot-blast passageway insufflates spout the material device with liquid and spout the material droplet drying of material device in spray reactor into powder, the inside periphery of spray reactor be equipped with the combustor that calcines the powder that forms after drying.
Furthermore, a nozzle of the liquid spraying device is positioned in the center of the hot air inlet hole. The uniform drying of the hot air to the liquid drops is ensured. The burners are uniformly distributed in the spraying reactor in the circumferential direction. The uniform calcination of the dried powder by the burner is ensured.
An airflow type spray drying calcining device comprises the spray reactor, a material liquid supply device and a dust collecting system, wherein a hot air furnace is connected outside a hot air channel, the material liquid supply device is connected with a liquid material spraying device through a material liquid pipeline, a material outlet below the spray reactor is connected with a material flow outlet pipe, an air closing device is arranged on the material flow outlet pipe, the material flow outlet pipe is connected with a material conveying pipe, the material conveying pipe and a hot air outlet of the spray reactor are connected with the dust collecting system, and waste gas and final materials are discharged by the dust collecting system.
Furthermore, the dust collecting system comprises a cyclone dust collector and a bag-type dust collector, hot air outlets of the material conveying pipe and the spray reactor are connected with an inlet at the upper end of the cyclone dust collector, an outlet at the upper end of the cyclone dust collector is connected with an inlet of the bag-type dust collector, a wet air outlet is arranged at the upper end of the bag-type dust collector, the bottom ends of the cyclone dust collector and the bag-type dust collector are respectively connected with a first material output pipe and a second material output pipe, and air closing devices are arranged on the first material output pipe and the second material output pipe.
Furthermore, the liquid spraying device comprises an airflow type spray gun, the upper end of the airflow type spray gun is connected with a compressed air pipeline and the material liquid pipeline, a water cooling structure is arranged around the airflow type spray gun in the hot air channel, and a heat insulation material layer is arranged on the periphery of the water cooling structure.
Furthermore, the water cooling structure is a cooling water jacket surrounding the airflow type spray gun, and the cooling water jacket is connected with a cooling water inlet pipe and a cooling water outlet pipe.
Furthermore, the hot air inlet of the spray reactor is provided with a hot air distributor, the hot air distributor is attached to the hole wall of the hot air inlet, so that hot air in a hot air channel only enters the spray reactor through the hot air distributor, the size of the hot air channel is gradually reduced along the direction close to the hot air distributor, the hot air distributor is of a # -shaped orifice plate structure, and the # -shaped orifice plate structure is formed by splicing thick flat steel.
Furthermore, the feed liquid supply device comprises a material tank and a clean water tank, the bottom ends of the material tank and the clean water tank are communicated with the feed liquid pipeline, and the feed liquid pipeline is also provided with a filter and a high-pressure feed pump.
Furthermore, the compressed air pipeline is provided with a first air compressor, and the material conveying pipe is provided with a second air compressor and an air volume adjusting valve.
Further, the foremost end of the material conveying pipe is provided with an air filter, a wet air outlet on the bag-type dust collector is externally connected with a wet air discharging pipe, and a draught fan is arranged on the wet air discharging pipe.
Has the advantages that: the utility model atomizes a plurality of mixed material liquids through the airflow type atomizer, and completes the integration of spray drying, calcining and reaction in a working volume body, and the process is simple; moreover, repeated heating and cooling are not needed, and the energy consumption is low; the equipment integrates, practices thrift the cost.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic view of the overall structure of the air-flow type spray drying calcining equipment of the present invention;
FIG. 2 is a block diagram of the hot air passageway, liquid spray device and hot air distributor;
FIG. 3 is a schematic view of the distribution of burners;
FIG. 4 is a block diagram of a liquid dispensing device;
fig. 5 is a schematic position diagram of the liquid spraying device and the hot air distributor.
The device comprises a spraying reactor 1, a hot air channel 2, a hot air channel 3, a combustor 4, a cyclone dust collector 5, a bag-type dust collector 6, a hot air furnace 7, a material liquid pipeline 8, a material flow outlet pipe 9, an air closing device 10, a material conveying pipe 11, a first material output pipe 12, a second material output pipe 13, an air-flow type spray gun 14, a compressed air pipeline 15, a cooling water jacket 151, a cooling water inlet pipe 152, a cooling water outlet pipe 16, a heat preservation material layer 17, a hot air distributor 18, a material tank 19, a clean water tank 20, a filter 21, a high-pressure charging pump 22, a first air compressor 23, a second air compressor 24, an air quantity adjusting valve 25, an air filter 26, a wet air discharge pipe 27, an induced draft fan 28 and an air outlet pipe.
Detailed Description
Referring to fig. 1, a spray reactor, a liquid spraying device is arranged at the top end of the spray reactor 1, a hot air inlet and a hot air outlet are arranged at the upper end of a cylinder of the spray reactor 1, a material outlet is arranged at the bottom end of the spray reactor 1, a hot air channel 2 is connected to the hot air inlet, a heat insulating material is adopted for the pipe wall of the hot air channel 2, hot air blown by the hot air channel 2 dries material drops sprayed into the spray reactor 1 from the liquid spraying device into powder through the hot air inlet, and a burner 3 for calcining the dried powder is arranged on the inner periphery of the spray reactor 1.
Referring to fig. 2 and 5, the nozzle of the liquid spraying device is positioned at the center of the hot air inlet hole. The burners 3 are uniformly distributed in the spraying reactor 1 in the circumferential direction.
Referring to fig. 1 to 5, an airflow type spray drying calcination device comprises the spray reactor 1 as described above, and further comprises a feed liquid supply device and a dust collection system, the hot air channel 2 is externally connected with a hot air furnace 6, the feed liquid supply device is connected with a liquid spraying device through a feed liquid pipeline 7, a material outlet below the spray reactor 1 is connected with a material outflow pipe 8, the material outflow pipe 8 is provided with an air closing device 9, the material outflow pipe 8 is connected with a material conveying pipe 10, the hot air outlets of the material conveying pipe 10 and the spray reactor 1 are both connected with the dust collection system, and the dust collection system discharges waste gas and final materials.
Specifically, dust collecting system includes cyclone 4 and sack cleaner 5, the hot air outlet of material conveyer pipe 10 and spray reactor 1 all with the access connection of cyclone 4 upper end, hot air outlet is connected with cyclone 4 through going out tuber pipe 28, the export of cyclone 4 upper end and the access connection of sack cleaner 5, sack cleaner 5 upper end is equipped with the humid air outlet, the bottom of cyclone 4 and sack cleaner 5 is connected with first material output tube 11 and second material output tube 12 respectively, all be equipped with airlock 9 on first material output tube 11 and the second material output tube 12.
The liquid spraying device comprises an airflow type spray gun 13, the upper end of the airflow type spray gun 13 is connected with a compressed air pipeline 14 and a material liquid pipeline 7, a water cooling structure is arranged around the airflow type spray gun 13 in the hot air channel 2, and a heat insulation material layer 16 is arranged on the periphery of the water cooling structure. The water cooling structure is a cooling water jacket 15 surrounding the airflow type spray gun 13, and a cooling water inlet pipe 151 and a cooling water outlet pipe 152 are connected to the cooling water jacket 15. Because the top temperature is too high (500C degrees), the common spray gun structure and the sealing piece can not bear the high temperature, and the cooling water jacket 15 and the heat insulation material layer 16 are arranged on the periphery of the airflow type spray gun 13 and used for ensuring the stable operation of the airflow type spray gun 13.
The hot air inlet of the spray reactor 1 is provided with a hot air distributor 17, the hot air distributor 17 is attached to the wall of the hot air inlet, so that hot air in the hot air channel 2 only enters the spray reactor 1 through the hot air distributor 17, the size of the hot air channel 2 is gradually reduced along the direction close to the hot air distributor 17, the hot air distributor 17 is of a # -shaped pore plate structure, and the # -shaped pore plate structure is formed by splicing thick flat steel. The hot air channel 2 adopts a closing-in mode to provide the air speed of the air port of the hot air distributor 17, so that the hot air distribution is more uniform, and as the part is a high-temperature area, a general punched hole plate cannot bear the high temperature of more than 500 ℃ (the high temperature can cause the metal material to deform seriously), the part is designed with a # -shaped hole plate structure, and the # -shaped hole plate is formed by splicing thick flat steel and has thermal expansion elasticity, so that the part can bear the high temperature of more than 500 ℃.
The material liquid supply device comprises a material tank 18 and a clean water tank 19, the bottom ends of the material tank 18 and the clean water tank 19 are both communicated with the material liquid pipeline 7, and the material liquid pipeline 7 is also provided with a filter 20 and a high-pressure feed pump 21.
The compressed air pipeline 14 is provided with a first air compressor 22, the material conveying pipe 10 is provided with a second air compressor 23 and an air quantity regulating valve 24, and the foremost end of the material conveying pipe 10 is provided with an air filter 20.
The wet air outlet of the bag-type dust collector 5 is externally connected with a wet air discharge pipe 26, and the wet air discharge pipe 26 is provided with a draught fan 27.
The working principle is as follows: the feed liquid is injected into a feed liquid channel in the airflow type spray gun 13 through a feed liquid pipeline 7 by a high-pressure feed pump 21, and simultaneously, compressed air is given as a power source to disperse the feed liquid into fine liquid drops of 3-5 microns. The hot blast stove 6 outside the spray reactor 1 provides heat energy (about 500 ℃) for drying liquid drops, the liquid is dried into powder, the powder falls through gravity, the calcination of a final product is completed through a combustor 3 area (calcination area) on the inner periphery of the tower body, the temperature of the section can reach 1000 ℃, and the calcined powder continuously falls to the air lock. The calcined heat energy is absorbed by the material reaction, the waste heat is upward, the waste heat passes through a material liquid drying area, additional heat energy is provided for drying, meanwhile, the temperature of high-temperature waste gas is reduced, and finally the waste gas enters an air outlet pipe 28 through a hot air outlet at the top of the tower and enters a dust collection system. The materials passing through the air blocking device 9 fall into the material conveying pipeline 10, and because the temperature of the materials in the material conveying pipeline 10 is very high by about 700 ℃, the materials are cooled through cold air blending, and finally enter the dust collecting system. Waste gas discharged from the top of the tower and waste gas of the material conveying pipe 10 are combined before entering a dust collecting system, the combined waste gas and waste gas enter a cyclone separator 4 and a bag-type dust collector 5 of the dust collecting system, materials are collected by the cyclone separator 4 and the bag-type dust collector 5, and waste gas is discharged by an induced draft fan 27.
It should be understood that the above description of the specific embodiments is only for the purpose of explanation and not for the purpose of limitation. Obvious changes or variations caused by the spirit of the present invention are within the scope of the present invention.
Claims (10)
1. A spray reactor, characterized by: spray reactor (1) top be equipped with liquid and spout the material device, the barrel upper end of spray reactor (1) is opened has hot-blast inlet hole and hot air exitus, spray reactor (1) bottom has the material export, hot-blast inlet hole is connected with hot-blast passageway (2), hot-blast process hot-blast inlet hole that hot-blast passageway (2) blowd in spouts the material device with liquid and spouts the gob drying of material device in spray reactor (1) into powder, spray reactor (1) inside border be equipped with carry out the combustor (3) calcined to the powder that forms after the drying.
2. A spray reactor according to claim 1, wherein: the nozzle of the liquid material spraying device is positioned at the center of the hot air inlet hole, and the burners (3) are uniformly distributed in the spraying reactor (1) in the circumferential direction.
3. An airflow type spray drying calcination device is characterized by comprising the spray reactor (1) as claimed in any one of claims 1 or 2, and further comprising a material liquid supply device and a dust collection system, wherein a hot air furnace (6) is externally connected to the hot air channel (2), the material liquid supply device is connected with a liquid spraying device through a material liquid pipeline (7), a material outlet below the spray reactor (1) is connected with a material outlet pipe (8), an air closing device (9) is arranged on the material outlet pipe (8), the material outlet pipe (8) is connected with a material conveying pipe (10), the material conveying pipe (10) and the hot air outlet of the spray reactor (1) are both connected with the dust collection system, and the dust collection system discharges waste gas and final materials.
4. An air-flowing spray-drying calcination apparatus according to claim 3, characterized in that: the dust collecting system comprises a cyclone dust collector (4) and a bag-type dust collector (5), hot air outlets of a material conveying pipe (10) and a spraying reactor (1) are connected with an inlet of the upper end of the cyclone dust collector (4), an outlet of the upper end of the cyclone dust collector (4) is connected with an inlet of the bag-type dust collector (5), a wet air outlet is formed in the upper end of the bag-type dust collector (5), the bottom ends of the cyclone dust collector (4) and the bag-type dust collector (5) are respectively connected with a first material output pipe (11) and a second material output pipe (12), and an air closing device (9) is arranged on the first material output pipe (11) and the second material output pipe (12).
5. An air-flowing spray-drying calcination apparatus according to claim 3, characterized in that: the liquid material spraying device comprises an airflow type spray gun (13), the upper end of the airflow type spray gun (13) is connected with a compressed air pipeline (14) and the material liquid pipeline (7), a water cooling structure is arranged around the airflow type spray gun (13) in the hot air channel (2), and a heat insulation material layer (16) is arranged on the periphery of the water cooling structure.
6. An air-flowing spray-drying calcination apparatus according to claim 5, wherein: the water cooling structure is a cooling water jacket (15) surrounding the airflow type spray gun (13), and a cooling water inlet pipe (151) and a cooling water outlet pipe (152) are connected to the cooling water jacket (15).
7. An air-flowing spray-drying calcination apparatus according to claim 3, characterized in that: the hot air inlet of the spray reactor (1) is provided with a hot air distributor (17), the hot air distributor (17) is attached to the wall of the hot air inlet, so that hot air in a hot air channel (2) only enters the spray reactor (1) through the hot air distributor (17), the size of the hot air channel (2) is gradually reduced along the direction close to the hot air distributor (17), the hot air distributor (17) is of a groined-shaped pore plate structure, and the groined-shaped pore plate structure is formed by splicing thick flat steel.
8. An air-flowing spray-drying calcination apparatus according to claim 3, characterized in that: the feed liquid supply device comprises a material tank (18) and a clear water tank (19), the bottom ends of the material tank (18) and the clear water tank (19) are communicated with the feed liquid pipeline (7), and a filter (20) and a high-pressure feed pump (21) are further arranged on the feed liquid pipeline (7).
9. An air-flowing spray-drying calcination apparatus according to claim 5, wherein: the compressed air pipeline (14) is provided with a first air compressor (22), and the material conveying pipe (10) is provided with a second air compressor (23) and an air quantity regulating valve (24).
10. An air-flowing spray-drying calcination apparatus according to claim 4, wherein: the foremost end of the material conveying pipe (10) is provided with an air filter (20), a wet air outlet on the bag-type dust collector (5) is externally connected with a wet air discharging pipe (26), and a draught fan (27) is arranged on the wet air discharging pipe (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921676326.0U CN210993038U (en) | 2019-10-09 | 2019-10-09 | Spray reactor and air-flowing type spray drying calcining equipment |
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|---|---|---|---|
| CN201921676326.0U CN210993038U (en) | 2019-10-09 | 2019-10-09 | Spray reactor and air-flowing type spray drying calcining equipment |
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| CN210993038U true CN210993038U (en) | 2020-07-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114643021A (en) * | 2020-12-18 | 2022-06-21 | 中核四0四有限公司 | Preparation UO of uranyl nitrate through airflow type atomization drying pyrolysis denitration3In a device |
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2019
- 2019-10-09 CN CN201921676326.0U patent/CN210993038U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114643021A (en) * | 2020-12-18 | 2022-06-21 | 中核四0四有限公司 | Preparation UO of uranyl nitrate through airflow type atomization drying pyrolysis denitration3In a device |
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| CP01 | Change in the name or title of a patent holder |
Address after: 213119 Xi Xiang Village, Hengshan Bridge Town, Wujin District, Changzhou, Jiangsu Patentee after: Jiangsu Longxin intelligent Drying Technology Co.,Ltd. Address before: 213119 Xi Xiang Village, Hengshan Bridge Town, Wujin District, Changzhou, Jiangsu Patentee before: Changzhou Longxin intelligent Drying Technology Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |