CN207079012U - A kind of closed air-cooled type grain alkali process units - Google Patents
A kind of closed air-cooled type grain alkali process units Download PDFInfo
- Publication number
- CN207079012U CN207079012U CN201720509353.3U CN201720509353U CN207079012U CN 207079012 U CN207079012 U CN 207079012U CN 201720509353 U CN201720509353 U CN 201720509353U CN 207079012 U CN207079012 U CN 207079012U
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- Prior art keywords
- air
- pipeline
- alkali
- pipe
- introduced machine
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- 239000003513 alkali Substances 0.000 title claims description 60
- 238000000034 method Methods 0.000 title claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 238000005469 granulation Methods 0.000 claims description 14
- 230000003179 granulation Effects 0.000 claims description 14
- 239000007921 spray Substances 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 54
- 235000011121 sodium hydroxide Nutrition 0.000 description 20
- 238000001816 cooling Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 239000003518 caustics Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000007908 dry granulation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Glanulating (AREA)
Abstract
It the utility model is related to a kind of closed air-cooled type grain alkali process units, it is connected including circular granulation tower, air-introduced machine and alkali dirt water tourie and by pipeline, filter and electric heater unit are provided with granulation tower, it is granulated tower bottom and is provided with rotating sprinkler, water ring, airflow path, feed pipe and discharge nozzle, pipeline is delivered to hot blast below shower nozzle by warm-air pipe between air-introduced machine and alkali dirt water tourie.Pipeline is provided with alkali dirt absorption valve between air-introduced machine and alkali dirt water tourie, warm-air pipe is provided with heat exchanger, the pipeline of heat exchanger inlet end is provided with heat exchange valve, and pipeline is provided with the bypass pipe being connected on heat exchanger other end pipeline on the outside of heat exchange valve, and bypass pipe is provided with by-passing valve.The utility model have simple in construction, equipment failure rate is low, production efficiency is high, product quality is high, it is environmentally friendly be easily installed and operate the advantages of.
Description
Technical field
A kind of closed air-cooled type grain alkali process units is the utility model is related to, is particularly applied to high-temperature fusion liquid
The solidification of caustic soda is granulated.
Background technology
Granular caustic soda（Average grain diameter 0.9-1.3mm）Product is due to excellent with superior mobility, ready dissolution and accumulating
Gesture, have become the main flow kind on caustic soda market.Most domestic alkali chemical industry enterprises caustic soda, which is granulated, to be used concentration
For 99%, temperature is that the fused solution caustic soda between 360-400 DEG C blasts from cooling tower top pan feeding and tower top surrounding air inlet
Air heat exchange cooling solidification, the prilling then to be discharged with solid granulates from bottom of towe.Such as《Chlorine industry》March 3 in 2012
It is interim《The device refrigeration dust pelletizing system technological transformation of grain alkali》Then mentioned in one text molten caustic (soda) from top of tower sprinkling and under caustic soda
Granulating technique.The technique because using thermal material with it is cold remove air co-current contact, and belong to caustic soda from tower top to bottom of towe it is simple under
Fall motion process, cause the partial melting caustic soda drop hang time short and with cooling air exchange heat it is not thorough, be not cooled in time
Solid particle and be adhered to granulation inner wall of tower, plant running is produced one layer of alkali layer inside granulation tower for a period of time.With
The extension of prilling granulator run time, the thickness of alkali layer will gradually thicken.To maintain prilling granulator to run well, need to periodically stop
Car is cleared up, and seriously reduces the production efficiency of device.Although some domestic enterprises are by increasing airduct size and increasing the blow rate required
Measure, reducing high-temperature molten alkali, cooling and solidifying does not cause cyclic stop to clear up the frequency, but energy consumption of unit product index in time
With increase, and it is granulated inner wall of tower knot alkali problem and is not solved at all still.
" Underjet blanking granulator " disclosed in Chinese patent CN2740276 by cylindrical granulation tower, loaded in tower
Or the heated type of bottom of towe or non-heated formula shower nozzle, upward air stream circular passage, clear tower, wall hanging skirt cloth, inside spin cooling
Cylinder exports the composition such as built-in vibratory sieve, it is characterised in that：Shower nozzle is fixed on the fresh air inlet center of bottom of towe by support plate and bolt, is put
Feeding pipe under shower nozzle, shower nozzle sphere orifice plate, filter seat, upper shell and temperature tube are welding as one, electric heater loaded on it is upper,
In lower shell, upper lower shell bolt or threaded connection, cylinder are welded with thin-walled separation sleeve outside, and separation sleeve is provided with stuffing-box；Clear tower
Device is placed in tower body by the bogie wheel guarantee being evenly distributed on clear tower ring and the distance of tower wall, clear tower and three haulage cables
Connection, stretched out by tower top and be connected through leading block with rotating cylinder；Vibratory sieve rectangle frame, screen cloth, suspender belt cool down loaded on inside spin
Drum outlet inner upper end, screen frame are connected with connecting rod, driven by crank, decelerator.The device exists certain in production practices
Defect：The device of bottom pan feeding because use fixed sprinkler, melting alkali lye from bottom of towe in spray process because of straight up and down, easily
Shower nozzle is caused to block, grain alkali granular size uneven phenomenon.Secondly, cyclone separator is connected between tower and air-introduced machine, by drawing
Blower fan, which takes out negative pressure, to be made to form the air stream risen in tower, while alkali dirt in tower is separated into water respiratory box by cyclone separator,
The hot-air exchanged with alkali lye is expelled directly out the external world.Because solidification phenomenon blocks whirlwind point when alkali dirt is separated by cyclone separator
From device import, cause to stop, fault rate is higher；3rd, the external world is all only discharged by the air of the dirt containing alkali once absorbed, because
Remain more caustic soda composition and influence is caused on device ambient atmosphere, do not meet environmentally friendly system requirement.
The content of the invention
One kind is simple in construction, fault rate is low, production efficiency is higher, pollution is small, product is miscellaneous to provide for the utility model purpose
The less closed air-cooled type grain alkali device of matter.
Technical scheme is used by the utility model solves its technical problem：A kind of closed air-cooled type grain alkali production
Device, including circular granulation tower, air-introduced machine and alkali dirt water tourie and be connected by pipeline, is provided with filter and electricity in granulation tower
Heater, it is granulated tower bottom and is provided with shower nozzle, water ring, cooling air runner, feed pipe and discharge nozzle, air-introduced machine and alkali lye water are inhaled
Pipeline is delivered to hot blast below shower nozzle by warm-air pipe between closed cans.
Above-mentioned closed air-cooled type grain alkali process units, alkali dirt water tourie are located at after air-introduced machine, air-introduced machine with
Pipeline is provided with alkali dirt absorption valve between alkali dirt water tourie, and warm-air pipe is provided with sirocco reclamation valve.By Valve controlling and,
So that the air once absorbed recycles again, while grain alkali product quality is improved, also efficiently solve and be all discharged into
The problem of environmental pollution of air；Original cyclone separator is removed, not only solves clogging, and convenient operation and control
System, fault rate is relatively low, and production efficiency significantly improves.
Above-mentioned closed air-cooled type grain alkali process units, warm-air pipe are provided with heat exchanger, the pipe of heat exchanger inlet end
Road is provided with heat exchange valve, and pipeline is provided with the bypass pipe being connected on heat exchanger other end pipeline on the outside of heat exchange valve, on bypass pipe
Provided with by-passing valve.Pass through the heat exchanger and valve operation on warm-air pipe so that granulation tower can quickly dry the short time after cleaning
Dry, production efficiency improves.Secondly, by adjusting by-passing valve so that the hot blast of secondary use turns again to granulation tower in bypass pipe
Below shower nozzle, advantageously in being sprayed on alkali lye.Because cold wind secondary cycle utilizes, the CO in fresh air is alleviated2With NaOH
React generation Na2CO3Influence so that grain alkali product impurity content further reduces.
Above-mentioned closed air-cooled type grain alkali process units, shower nozzle is rotating sprinkler.By using rotary nozzle, alkali
Liquid enters shower nozzle centrifugal rotation and sprayed into tower, solves the easy blockage problem of shower nozzle.
The beneficial effects of the utility model are, with above-mentioned closed air-cooled type grain alkali process units, while fully profit
Sprayed with high-temperature fusion caustic soda from bottom of towe to tower top height, then freely falling body to the motion two-pass of bottom of towe adds grain again
The alkali skyborne holdup time, ensure that caustic soda is cooled to below its setting temperature completely, preferably resolve and do not solidify caustic soda
The problem of grain adhesion inner wall of tower influences device normal operation.And the equipment such as clear tower, cyclone separator are eliminated, simplify work
Sequence, cost of equipment expenditure is reduced, also solve alkali dirt in addition and block cyclone separator problem, reduce fault rate, improve
Production efficiency；Secondly, increased warm-air pipe, part hot blast are blown by pipeline on being granulated below tower bottom shower nozzle, and auxiliary improves
Molten caustic (soda) drop is uniformly distributed throughout the air.The utility model uses cooling air utilization process, after absorbing alkali dirt
Only a small amount of air discharge, realizes qualified discharge；On the other hand, CO in secondary cooling gas2Content is few, and ash content is low, finally carries
High grain alkali product quality.The present apparatus is easily installed and operated, and can be widely applied in the production of chlor-alkali industry grain alkali.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples：
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 1 feed pipes, 2. water rings, 3. rotary nozzles, 4. granulation towers, 5. discharge nozzles, 6. air-introduced machines, 7. alkali dirt absorb valve,
8. alkali dirt water tourie, 9. sirocco reclamation valves, 10. warm-air pipes, 11. by-passing valves, 12. heat exchange valves, 13. heat exchangers, 14. bypass
Pipe.
Embodiment
Reference picture 1, the present embodiment are connected including circular granulation tower 4, air-introduced machine 6 and alkali dirt water tourie 8 and by pipeline,
Filter and electric heater unit are provided with granulation tower, tower bottom is granulated and is provided with rotary nozzle 3, water ring 2, airflow path, charging
Pipe 1 and discharge nozzle 5, pipeline is provided with alkali dirt absorption valve 7 between air-introduced machine and alkali dirt water tourie, and warm-air pipe 10 is provided with hot blast
Recovery valve 9.Hot blast is delivered to below rotary nozzle by warm-air pipe.Alkali dirt water tourie is located at after air-introduced machine.On warm-air pipe
Provided with heat exchanger 13, the pipeline of heat exchanger inlet end is provided with heat exchange valve 12, and pipeline, which is provided with, on the outside of heat exchange valve is connected to heat exchange
Bypass pipe 14 on device other end pipeline, bypass pipe are provided with by-passing valve 11.
Specific workflow：
After opening electric heating system heating shower nozzle and alkali pipe preference temperature, cauldron is boiled into 98% qualified molten caustic soda certainly
Submerged pump is sent into rotary nozzle through oblique expects pipe, and submerged pump adjusts flow by frequency converter, and the alkali lye that rotary nozzle sprays borrows air inducing
Machine take out negative pressure formation air stream rise to it is two-way to bottom of towe, upper and lower process and air contact under self gravitation effect after tower top
Heat exchange forms the small alkali grain of solid-state, through bottom temp up to 130 DEG C.Grain alkali enters after discharge nozzle delivers to roller cooler secondary cooling
Packing department.
Granulation tower two bottom sides set clear tower water ring, make water ring along tower wall with crisscross spray obliquely by Open valve
Penetrate, clean tower wall residual material.
To avoid an alkali quality impurity content high, the device uses confined air air cooling, i.e., by after air and alkali heat exchange
Hot-air is changed to directly go granulation tower bottom cycle to utilize by exclusion air, and the air-flow risen is formed by negative pressure in tower, is solved
Shower nozzle alkali lye overflow phenomena.It is granulated tower bottom airduct and shower nozzle distance is appropriate, is entered by shower nozzle both sides air holes.
To avoid conventional device cyclone separator from influenceing production problem because alkali dirt blocks, the present apparatus is used top of tower gas
Body dust absorbs trough to alkali dirt water after air-introduced machine is extracted out and received, and liquid continues to recycle.After cleaning during shutdown is granulated tower wall,
Returned to after the sealable heated air of secondary use is exchanged heat by heat exchanger and be granulated tower bottom airduct, dry granulation tower rapidly.
Claims (4)
1. a kind of closed air-cooled type grain alkali process units, including circular granulation tower, air-introduced machine and alkali lye water tourie and lead to
Cross pipeline to be connected, filter and electric heater unit be provided with granulation tower, be granulated tower bottom provided with shower nozzle, water ring, airflow path,
Feed pipe and discharge nozzle, it is characterised in that：Hot blast is delivered to spray by pipeline by warm-air pipe between air-introduced machine and alkali lye water tourie
Head lower section.
2. closed air-cooled type grain alkali process units as claimed in claim 1, it is characterised in that：Alkali dirt water tourie is located at
After air-introduced machine, pipeline is provided with alkali dirt absorption valve between air-introduced machine and alkali dirt water tourie, and warm-air pipe is provided with sirocco reclamation
Valve.
3. closed air-cooled type grain alkali process units as claimed in claim 1 or 2, it is characterised in that：Warm-air pipe is provided with
Heat exchanger, the pipeline of heat exchanger inlet end are provided with heat exchange valve, and pipeline, which is provided with, on the outside of heat exchange valve is connected to the heat exchanger other end
Bypass pipe on pipeline, bypass pipe are provided with by-passing valve.
4. closed air-cooled type grain alkali process units as claimed in claim 3, it is characterised in that：Shower nozzle is rotating spraying
Head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720509353.3U CN207079012U (en) | 2017-05-09 | 2017-05-09 | A kind of closed air-cooled type grain alkali process units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720509353.3U CN207079012U (en) | 2017-05-09 | 2017-05-09 | A kind of closed air-cooled type grain alkali process units |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207079012U true CN207079012U (en) | 2018-03-09 |
Family
ID=61435481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720509353.3U Expired - Fee Related CN207079012U (en) | 2017-05-09 | 2017-05-09 | A kind of closed air-cooled type grain alkali process units |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207079012U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112495301A (en) * | 2021-01-28 | 2021-03-16 | 江苏优扬药业有限公司 | Manufacturing equipment for pharmaceutic adjuvant |
| CN115057121A (en) * | 2022-08-04 | 2022-09-16 | 江苏华恬节能科技有限公司 | Chemical product storage device |
-
2017
- 2017-05-09 CN CN201720509353.3U patent/CN207079012U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112495301A (en) * | 2021-01-28 | 2021-03-16 | 江苏优扬药业有限公司 | Manufacturing equipment for pharmaceutic adjuvant |
| CN115057121A (en) * | 2022-08-04 | 2022-09-16 | 江苏华恬节能科技有限公司 | Chemical product storage device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180309 Termination date: 20210509 |
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| CF01 | Termination of patent right due to non-payment of annual fee |