CN216347496U - Flaky crystalline material calcium chloride drying system - Google Patents
Flaky crystalline material calcium chloride drying system Download PDFInfo
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- CN216347496U CN216347496U CN202122984717.2U CN202122984717U CN216347496U CN 216347496 U CN216347496 U CN 216347496U CN 202122984717 U CN202122984717 U CN 202122984717U CN 216347496 U CN216347496 U CN 216347496U
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Abstract
A drying system for flaky crystalline material calcium chloride. The steam rotary dryer comprises an air preheater, a feeding machine, a steam rotary dryer, a discharging conveyor and a steam distributor, wherein the steam rotary dryer comprises a discharging cover and a rotary discharging valve, the discharging cover comprises a discharging port and a discharging cover air port, the rotary discharging valve is connected with the discharging port, the feeding machine comprises a feeding machine air port, the feeding machine is connected with the steam rotary dryer, and the steam distributor inputs steam into a heat exchange tube inside the steam rotary dryer.
Description
Technical Field
The invention relates to the field of steam waste heat utilization and wet material drying and dehydration, in particular to a flaky crystalline material calcium chloride drying system.
Background
For dihydrate flaky calcium chloride materials, a fluidized bed drying process is traditionally adopted, and the dihydrate flaky calcium chloride materials are characterized in that the materials are in a fluidized turbulent flow state, heat transfer, heat exchange and drying are carried out by fully and high-frequency contact between hot air and the materials through high-speed turbulent flow of the hot air and the materials, high-speed and high-frequency collision scouring abrasion is carried out between material particles, pulverization is serious, powder is increased, and transportation and sale of the materials are not facilitated. When the granularity of the material and the moisture of the fed material are changed, the air quantity needs to be adjusted for stabilizing the fluidization working condition, and due to the characteristic of fluidization and drying of the material, the adjustable range of the air quantity is very small, so that the material is difficult to adapt to the working condition with large granularity change of the fed particles. Once the fluidized bed dryer is determined, due to the characteristics of fluidized drying of the fluidized bed dryer, a certain fluidized gas velocity needs to be maintained, particles to be dried can be brought out of the fluidized bed when the gas velocity is too high, heavy materials are abraded and pulverized, the particles cannot be fluidized when the gas velocity is too low, and the conditions of bias flow, channeling and even dead bed occur, so that the system cannot normally operate. Therefore, the adjustable range of the air quantity is very small for the drying of the specific material. When the feeding amount fluctuates, the air quantity regulation cannot be well adapted to the large-range change of the drying capacity.
In addition, in the conventional fluidized drying process, a large amount of drying air is required to form the material into a fluidized state, which causes the following undesirable effects: firstly, the tail gas amount is large, dust removal is difficult, and environmental pollution is easily caused; secondly, in order to enable the materials to form a fluidized state, high air pressure is needed to overcome material resistance, and fans are needed to be arranged at the front and the rear of the dryer, so that the power consumption is high; and thirdly, the tail gas quantity is large, the quantity of heat brought out of the system is large, and the thermal efficiency of the system is low.
Disclosure of Invention
The invention provides a drying system for flaky crystalline material calcium chloride, which comprises an air preheater 1, a feeder 2, a steam rotary dryer 3, a discharging conveyor 4 and a steam distributor 34, wherein the steam rotary dryer 3 comprises a discharging cover 31, and a rotary discharge valve 32, the discharging cover 31 comprises a discharging port 311 and a discharging cover air port 312, the rotary discharge valve 32 is connected with the discharging port 311 through the discharging conveyor 4, the feeder 2 comprises a feeder air port 21, the feeder 2 is connected with the steam rotary dryer 3, the air preheater 1 is used for preheating moisture-carrying gas fed into the steam rotary dryer 3, and the steam distributor 34 inputs the steam into a heat exchange pipe inside the steam rotary dryer 3.
Optionally, the air preheater 1 is connected to the hood 31 via hood air ports 312, and moisture-laden air enters the steam rotary dryer 3 via the air preheater 1 at the hood air ports 312 and exits the feeder air ports 21.
Alternatively, the air preheater 1 is connected to the feeder 2 via the feeder air port 21, and moisture-carrying air enters the steam rotary dryer 3 via the air preheater 1 at the feeder air port 21 and exits the hood air port 312.
Preferably, the steam enters the air preheater 1 for heating the moisture-carrying gas prior to entering the steam rotary dryer 3.
Preferably, the drying system for the flaky crystalline material calcium chloride further comprises a dust remover 7 for removing dust from the air discharged from the steam rotary dryer 3.
Preferably, the drying system for the flaky crystalline material calcium chloride further comprises a cooler 6 for cooling the material discharged from the steam rotary dryer 3.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment, in which:
1-air preheater, 2-feeder, 3-steam rotary dryer, 4-discharge conveyor, 34-steam distributor, 31-discharge cover, 32-rotary discharge valve, 311-discharge outlet, 312-discharge cover air port, 21-feeder air port, 6-cooler, 7-dust remover.
Fig. 2 is a schematic structural diagram of the second embodiment, in which:
1-air preheater, 2-feeder, 3-steam rotary dryer, 4-discharge conveyor, 34-steam distributor, 31-discharge cover, 32-rotary discharge valve, 311-discharge outlet, 312-discharge cover air port, 21-feeder air port, 6-cooler, 7-dust remover.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Slice crystallization material calcium chloride drying system includes air heater 1, feeder 2, steam rotary dryer 3, ejection of compact conveyer 4, steam distributor 34, steam rotary dryer 3 contains ejection of compact cover 31, rotatory discharge valve 32, ejection of compact cover 31 includes discharge gate 311, ejection of compact cover air port 312, rotatory discharge valve 32 is connected with discharge gate 311 through ejection of compact conveyer 4, feeder 2 contains feeder air port 21, feeder 2 is connected with steam rotary dryer 3, air heater 1 is used for carrying the moisture to preheat that will send into steam rotary dryer 3, steam distributor 34 inputs the inside heat exchange tube of steam rotary dryer 3 with steam. The air preheater 1 is connected to the hood 31 via hood air ports 312, and carries moisture through the air preheater 1 into the rotary steam dryer 3 at hood air ports 312 and out of the feeder air ports 21.
The main body of the steam rotary dryer 3 is a cylinder body which is slightly inclined and can rotate, wet materials are added into the cylinder body through the feeder 2, the materials enter from the high end and exit from the low end under the action of gravity, and heat exchange is carried out between the materials and the heating tube bundle in the moving process, so that drying is finished.
Steam enters the heat exchange tubes in the steam rotary dryer through the steam distributor 34, the heat exchange tubes are arranged in the cylinder body in a concentric mode, materials in the cylinder body are heated and dried, and condensed water is discharged. The rotary discharge valve 32 in the discharge cover, namely the air seal device, has the function of air locking, so that materials in the discharge device are continuously and timely discharged, and meanwhile, the pressure in the cylinder body is ensured not to be exposed to the normal pressure environment, so that moisture can be stably input and output in the drying process.
To increase the drying efficiency, steam is fed into the air preheater 1 for heating the moisture-carrying gas before it is fed into the steam rotary dryer 3.
The drying system for the flaky crystalline material calcium chloride further comprises a dust remover 7 for removing dust from the air discharged from the steam rotary dryer 3. The device also comprises a cooler 6 which is used for cooling the material discharged from the steam rotary dryer 3.
Example two
Slice crystallization material calcium chloride drying system includes air heater 1, feeder 2, steam rotary dryer 3, ejection of compact conveyer 4, steam distributor 34, steam rotary dryer 3 contains ejection of compact cover 31, rotatory discharge valve 32, ejection of compact cover 31 includes discharge gate 311, ejection of compact cover air port 312, rotatory discharge valve 32 is connected with discharge gate 311 through ejection of compact conveyer 4, feeder 2 contains feeder air port 21, feeder 2 is connected with steam rotary dryer 3, air heater 1 is used for carrying the moisture to preheat that will send into steam rotary dryer 3, steam distributor 34 inputs the inside heat exchange tube of steam rotary dryer 3 with steam. The air preheater 1 is connected to the feeder 2 via the feeder air port 21, and carries moisture through the air preheater 1 into the steam rotary dryer 3 at the feeder air port 21 and out the hood outlet air port 312.
The main body of the steam rotary dryer 3 is a cylinder body which is slightly inclined and can rotate, wet materials are added into the cylinder body through the feeder 2, the materials enter from the high end and exit from the low end under the action of gravity, and heat exchange is carried out between the materials and the heating tube bundle in the moving process, so that drying is finished.
Steam enters the heat exchange tubes in the steam rotary dryer through the steam distributor 34, the heat exchange tubes are arranged in the cylinder body in a concentric mode, materials in the cylinder body are heated and dried, and condensed water is discharged. The rotary discharge valve 32 in the discharge cover, namely the air seal device, has the function of air locking, so that materials in the discharge device are continuously and timely discharged, and meanwhile, the pressure in the cylinder body is ensured not to be exposed to the normal pressure environment, so that moisture can be stably input and output in the drying process.
To increase the drying efficiency, steam is fed into the air preheater 1 for heating the moisture-carrying gas before it is fed into the steam rotary dryer 3.
The drying system for the flaky crystalline material calcium chloride further comprises a dust remover 7 for removing dust from the air discharged from the steam rotary dryer 3. The device also comprises a cooler 6 which is used for cooling the material discharged from the steam rotary dryer 3.
Claims (6)
1. The utility model provides a slice crystallization material calcium chloride drying system, a serial communication port, including air heater (1), feeder (2), steam rotary dryer (3), ejection of compact conveyer (4), steam distributor (34), steam rotary dryer (3) contain ejection of compact cover (31), rotatory discharge valve (32), ejection of compact cover (31) are including discharge gate (311), ejection of compact cover air port (312), rotatory discharge valve (32) are connected with discharge gate (311) through ejection of compact conveyer (4), feeder (2) contain feeder air port (21), feeder (2) are connected with steam rotary dryer (3), steam distributor (34) are with the inside heat exchange tube of steam input steam rotary dryer (3).
2. The drying system for calcium chloride as a crystalline flake material as claimed in claim 1, wherein the air preheater (1) is connected to the hood (31) via hood air openings (312), and moisture-carrying air is introduced into the rotary steam dryer (3) via the air preheater (1) at the hood air openings (312) and is discharged from the feeder air openings (21).
3. The drying system for calcium chloride as a crystalline flake material as claimed in claim 1, wherein the air preheater (1) is connected to the feeder (2) through a feeder air port (21), and moisture-carrying air is introduced into the steam rotary dryer (3) through the air preheater (1) at the feeder air port (21) and discharged from a discharge hood air port (312).
4. The drying system for calcium chloride as a crystalline flake material as set forth in claim 1, wherein steam is introduced into the air preheater (1) for heating moisture-carrying gas before being introduced into the steam rotary dryer (3).
5. The drying system for calcium chloride as flake crystalline material according to claim 1, further comprising a dust collector (7) for removing dust from the air discharged from the steam rotary dryer (3).
6. The drying system for calcium chloride as flake crystalline material as claimed in claim 1, further comprising a cooler (6) for cooling the material discharged from the steam rotary dryer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122984717.2U CN216347496U (en) | 2021-12-01 | 2021-12-01 | Flaky crystalline material calcium chloride drying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122984717.2U CN216347496U (en) | 2021-12-01 | 2021-12-01 | Flaky crystalline material calcium chloride drying system |
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| Publication Number | Publication Date |
|---|---|
| CN216347496U true CN216347496U (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122984717.2U Active CN216347496U (en) | 2021-12-01 | 2021-12-01 | Flaky crystalline material calcium chloride drying system |
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| CN (1) | CN216347496U (en) |
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2021
- 2021-12-01 CN CN202122984717.2U patent/CN216347496U/en active Active
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