CN212974646U - Dry waste gas absorbing device of salicylic acid - Google Patents
Dry waste gas absorbing device of salicylic acid Download PDFInfo
- Publication number
- CN212974646U CN212974646U CN202020288725.6U CN202020288725U CN212974646U CN 212974646 U CN212974646 U CN 212974646U CN 202020288725 U CN202020288725 U CN 202020288725U CN 212974646 U CN212974646 U CN 212974646U
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- salicylic acid
- sublimation
- storehouse
- absorbing device
- condenser
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Abstract
The utility model relates to a chemicals preparation field especially relates to a dry waste gas absorbing device of salicylic acid, including sublimation generator, desicator, condenser, waste gas absorbing device, nitrogen gas heating crude crystal solid after the air pump will heat makes its sublimation, crosses the back through the desicator drainage, and crystallization in the condenser in addition has multiple organic matter to fail to condense at the salicylic acid preparation in-process, through the filter that contains ethanol, absorbs unnecessary organic matter impurity. In the current engineering technology, the requirement on crude salicylic acid is high, the solvent in the crude salicylic acid is usually ignored in the sublimation purification of the salicylic acid, the purity is influenced, and organic compound impurities in the salicylic acid are ignored, so that the salicylic acid does not meet the requirement of environmental protection. The utility model discloses improve to these problems, make exhaust gas accord with the environmental protection requirement through grinding machine and desicator and organic filter. The utility model discloses has easy operation, the characteristic of safety ring guarantor.
Description
Technical Field
The utility model relates to a chemicals preparation equipment field especially relates to a dry waste gas absorbing device of salicylic acid.
Background
Salicylic acid is a fat-soluble organic acid. Salicylic acid is used in clinical trials to reduce the risk of long-term complications of heart disease in diabetic patients. The preparation process of salicylic acid mainly includes the reaction of phenol and sodium hydroxide to produce sodium phenolate, distillation and dehydration, then introducing carbon dioxide to make carboxylation reaction to obtain sodium salicylate, then using sulfuric acid to make acidification so as to obtain crude product. The crude product is refined by sublimation to obtain a finished product. In the salicylic acid sublimation delicate engineering technology at the present stage, the prepared equipment has high requirements on crude salicylic acid, and solvents in the crude salicylic acid are usually ignored in the sublimation purification of the salicylic acid, so that the purity of the salicylic acid is influenced, organic compound impurities in the salicylic acid are easily ignored, and the exhaust gas does not meet the environmental protection requirements.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a salicylic acid dry waste gas absorption device.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a dry waste gas absorbing device of salicylic acid, includes sublimation generator, desicator, condenser, waste gas absorber, nitrogen gas supply storehouse, air pump, heater, the device establishes ties in proper order, divides out branch behind the air pump and connects the outlet duct for the gas discharge of evacuation before the sublimation. Sublimation generator is including grinding the machine, sublimes the storehouse, and the three independent airtight space in garbage collection storehouse through valve control switch, grind the machine and arrange in subliming storehouse top and grind the machine radius for subliming half in the storehouse, grind the machine and will grind the back powder and arrange funnel nature in the buffer memory storehouse in, the garbage collection storehouse adopts the funnel shape to collect waste material to below cylinder collector to take out the waste material through the waste outlet.
The grinding machine comprises a feed inlet, a grinding wheel and a buffer bin, and preferably, the grinding wheel is in a trapezoidal shape, and the shape of each blade is a structure gradually widened from top to bottom, so that a crude product is ground to meet sublimation requirements.
Including sunning board and impeller, preferred in the sublimation storehouse, the sunning board is cone shape, makes the powder homodisperse that drops, and is preferred, and the impeller is by motor drive, turns over the stir-fry to the powder, improves heating efficiency.
The dryer is provided with a plurality of layers of drying screens, preferably, the drying screens are coated with a silica gel desiccant which can absorb water stably at 170 ℃.
Preferably, a multi-partition heat conduction device is adopted in the condenser and the heater, so that the heated cooling area is increased. Preferably, the condenser and heater have thermostatic controls, wherein the condenser temperature is 70 ℃ and the heater temperature is 140 ℃.
The mouth of blowing is installed to sublimation storehouse lateral wall, and is preferred, distributes the aperture on the mouth of blowing, through aperture dispersion wind direction, avoids local being heated.
The utility model discloses beneficial effect has:
through sublimation generator, desicator, condenser, waste gas absorber, nitrogen gas supply storehouse, air pump, the sublimation of heater series connection device of desublimating, its advantage lies in, the grinding mechanism of sublimation generator makes in the production process to the requirement reduction of placing of crude, improves production efficiency, increases waste gas collector and desicator and improves off-the-shelf purity, makes exhaust gas reach safety standard simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of a salicylic acid dry waste gas absorption device provided by the present invention;
fig. 2 is a schematic structural view of a drying filter screen of a salicylic acid drying exhaust gas absorption device provided by the present invention;
in the figure: sublimation generator 1, desicator 2, condenser 3, waste gas absorber 4, nitrogen gas make-up storehouse 5, air pump 6, heater 7, outlet duct 8, feed inlet 11, grinding miller 12, buffer memory storehouse 13, sunning board 14, impeller 15, waste material collection storehouse 16, waste material export 17, sublimation storehouse 19, mouth of blowing 18, nitrogen gas import 51, dry filter screen 21, thermostatic control 31.
Detailed Description
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Referring to fig. 1-2, a salicylic acid dry waste gas absorbing device, including sublimation generator 1, desicator 2, condenser 3, waste gas absorber 4, nitrogen gas replenishment storehouse 5, air pump 6, heater 7, the device is established ties in proper order, divides the tributary behind air pump 6 and connects outlet duct 8, and sublimation generator 1 is including grinding the machine, sublimes storehouse 19, 16 three independent airtight spaces in garbage collection storehouse. The grinder comprises a feed inlet 11, a grinding wheel 12 and a buffer bin 13, wherein the grinding wheel 12 is in a trapezoidal shape, and the shape of a blade is gradually wide from top to bottom. The sublimation bin 19 comprises a drying plate 14 and an impeller 15, the drying plate 14 is in a conical shape, and the impeller 15 is driven by a motor to stir-fry the powder.
The dryer 2 is provided with a plurality of layers of drying screens 21 coated with silica gel drying agent. The condenser 3 and the heater 7 adopt a multi-partition heat conduction device. The condenser 3 and the heater 7 are provided with a constant temperature controller 31, a nitrogen supplementing bin 5 is connected in the series circuit through a nitrogen inlet 51, and the side wall of the sublimation bin 19 is provided with a blowing port 18.
In the using process, crude salicylic acid is firstly put into a grinding machine from a feeding hole 11, the blades of the grinding machine rotate to grind the crude salicylic acid, so that the crude salicylic acid is powdered and enters a buffer bin 13, at the moment, a bin gate is opened, and the powder is thrown on a conical drying plate 14 and enters a sublimation bin 19.
At this time, the air outlet pipe 8 is opened, the air pump 6 is used to vacuumize the air in the whole loop, the air outlet pipe 8 is closed, and the nitrogen supplementing bin 5 inputs nitrogen into the loop through the nitrogen inlet 51.
At this time, the condenser 3 and the heater 7 adjust the temperature of the generation chamber to 70 ℃ and 140 ℃ respectively by the thermostat 31. At the moment, nitrogen enters the heater 7 through the air pump 6, the temperature is raised to 140 ℃, then the nitrogen is uniformly blown into the sublimation bin 19 through the air blowing opening 18, at the moment, the motor drives the drying plate 14 and the impeller 15 to rotate, and salicylic acid powder is stir-fried to be uniformly heated. The mixture of sublimed nitrogen and crude salicylic acid gas enters a dryer 2, passes through a drying filter screen 21, dries the mixed gas, enters a condenser 3, and passes through a plurality of condensing plates to ensure that the water hydrochloric acid is desublimated and crystallized in the condenser 3. The nitrogen and the redundant organic compound gas enter a waste gas absorber 4, the organic compound is dissolved in the ethanol, and the purified nitrogen enters an air pump 6 for the next circulation.
At this time, after sufficient sublimation and desublimation, the sublimation chamber 19 opens the chamber door to drop the waste into the waste collecting chamber 16, and the waste is discharged through the waste outlet 17. At this point, the air outlet pipe 8 is opened, and the air in the whole loop is pumped out by the air pump 6 through the dryer 2 and the waste gas collector 4.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (6)
1. The utility model provides a dry waste gas absorbing device of salicylic acid, includes sublimation generator (1), desicator (2), condenser (3), waste gas absorber (4), nitrogen gas replenishment storehouse (5), air pump (6), heater (7), its characterized in that: the device establishes ties in proper order, divides after air pump (6) to branch and connects before being used for sublimating evacuation gas outgoing's outlet duct (8), sublimation generator (1) is including grinding the machine, sublimes storehouse (19), and three independent airtight space in garbage collection storehouse (16) is through valve control switch, grind the machine and arrange in sublimating storehouse (19) top and grind half of machine radius for sublimating storehouse (19), grind the machine and will grind the back powder and arrange funnel nature in cache storehouse (13), garbage collection storehouse (16) adopt the funnel shape to collect waste material to below cylinder collector to take out the waste material through waste material outlet (17).
2. A salicylic acid dry flue gas absorbing device as claimed in claim 1 wherein: the grinder comprises a feeding hole (11), a grinding wheel (12) and a buffer bin (13), wherein the grinding wheel (12) is trapezoidal, and the shape of a blade is a structure gradually widened from top to bottom.
3. A salicylic acid dry flue gas absorbing device as claimed in claim 1 wherein: the sublimation bin (19) comprises a drying plate (14) and an impeller (15) for stir-frying the powder, the drying plate (14) is in a conical shape, and the impeller (15) is driven by a motor.
4. A salicylic acid dry flue gas absorbing device as claimed in claim 1 wherein: the dryer (2) is internally provided with a plurality of layers of drying filter screens (21) coated with silica gel drying agents which can absorb water stably at 170 ℃.
5. A salicylic acid dry flue gas absorbing device as claimed in claim 1 wherein: adopt many baffles heat conduction device in condenser (3) and heater (7), condenser (3) and heater (7) have thermostatic control ware (31), and control condenser (3) temperature is 70 ℃, and heater (7) temperature is 140 ℃.
6. A salicylic acid dry flue gas absorbing device as claimed in claim 1 wherein: sublimation storehouse (19) lateral wall is installed evenly distributed's mouth of blowing (18), mouth of blowing (18) have from top to bottom a plurality of apertures and shunt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020288725.6U CN212974646U (en) | 2020-03-11 | 2020-03-11 | Dry waste gas absorbing device of salicylic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020288725.6U CN212974646U (en) | 2020-03-11 | 2020-03-11 | Dry waste gas absorbing device of salicylic acid |
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| Publication Number | Publication Date |
|---|---|
| CN212974646U true CN212974646U (en) | 2021-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020288725.6U Expired - Fee Related CN212974646U (en) | 2020-03-11 | 2020-03-11 | Dry waste gas absorbing device of salicylic acid |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115054937A (en) * | 2022-06-27 | 2022-09-16 | 欧兴敏 | A high-quality sublimation crystallization purification device for vinyl sulfate |
| CN115228125A (en) * | 2022-07-04 | 2022-10-25 | 镇江高鹏药业有限公司 | Energy-saving 5-sulfosalicylic acid sublimation device and use method |
-
2020
- 2020-03-11 CN CN202020288725.6U patent/CN212974646U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115054937A (en) * | 2022-06-27 | 2022-09-16 | 欧兴敏 | A high-quality sublimation crystallization purification device for vinyl sulfate |
| CN115228125A (en) * | 2022-07-04 | 2022-10-25 | 镇江高鹏药业有限公司 | Energy-saving 5-sulfosalicylic acid sublimation device and use method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210416 |
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| CF01 | Termination of patent right due to non-payment of annual fee |