CN202265421U - Vacuum crystal separating and buffering device with circularly-washing function - Google Patents
Vacuum crystal separating and buffering device with circularly-washing function Download PDFInfo
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- CN202265421U CN202265421U CN2011203492777U CN201120349277U CN202265421U CN 202265421 U CN202265421 U CN 202265421U CN 2011203492777 U CN2011203492777 U CN 2011203492777U CN 201120349277 U CN201120349277 U CN 201120349277U CN 202265421 U CN202265421 U CN 202265421U
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- cyclonic separator
- ammonium nitrate
- water
- circulation groove
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Abstract
A vacuum crystal separating and buffering device with a circularly-washing function relates to a recovering device for ammonium nitrate and expanded ammonium nitrate. An air inlet of a cyclone separator is communicated with an air outlet pipeline of a crystallizer, an air outlet of the cyclone separator is communicated with an air inlet pipeline of an air cooler, a liquid discharge outlet of the cyclone separator is communicated with a circular groove through a barometric pipe, an annular spraying pipe is suspended in an inner cavity of the cyclone separator and communicated with a liquid inlet pipeline, the circular groove is provided with a water replenishing inlet and a water drainage outlet, the water drainage outlet of the circular groove is communicated with a water inlet pipeline of the circulating pump, one channel of a water drainage outlet of the circulating pump is communicated with the liquid inlet pipeline of the cyclone separator, and the other channel of the water drainage outlet of the circulating pump is communicated with an evaporating device or a dissolving tank pipeline. The vacuum crystal separating and buffering device has the advantages that a great quantity of ammonium nitride drops and crystal powder entrained in the air flow can be separated effectively by means of centrifuge separation and the circularly-washing and buffering function, and ammonium nitride in the original form can be recovered by means of an evaporating or dissolving system of an original process device.
Description
Technical field:
The utility model relates to a kind of device of material soluble in water such as an ammonium nitrate, expanded ammonium nitrate in gas powder, gas-liquid separation process continuous washing, recovery.
Background technology:
At present; The vacuum crystallization drying installation of Traditional industrial ammonium nitrate crystals, expanded ammonium nitrate is formed by connecting through vacuum pipe in air cooler, the vacuum pump in crystallizing and drying machine, band barometric pipe fluid-tight pond, and most producers have also established a vacuum buffer tank between crystallizer and air cooler.
In industrial crystallization ammonium nitrate production system, in the ammonium nitrate solution sent here with operation via the vacuum-evaporator unit evaporation and concentrating after, be sent to the ammonium nitrate solution storage tank; In the expanded ammonium nitrate system; After solid ammonium nitrate or high density ammonium nitrate solution are sent to and dissolve jar and quantitative water mixes; Dissolve through heating and to be prepared into suitable expanded ammonium nitrate solution; The crystallizing and drying machine under the effect of vacuum system, by measuring requirement with storage tank or the ammonium nitrate solution in dissolving jar suck a crystallizing and drying machine and carry out drying.
In drying process; Ammonium nitrate solution small droplets that evaporated vapor is carried secretly and ammonium nitrate crystal powder; Unavoidably in vacuum system, especially deposit in the surge tank, crystallization; When serious even can stop up vacuum pipe and surge tank, often need regularly carry out steaming out or cleaning, had a strong impact on carrying out smoothly of producing vacuum system.
In addition; Because surge tank does not have separation function; A large amount of an ammonium nitrate small droplets and crystal powders finally are brought into air cooler, be evaporated the dissolving of water of condensation or recirculated cooling water and absorb (form that depends on air cooler), and the ammonium nitrate of evaporation condensate still can reach more than 1.0% at this moment; Far above the state sewage emission standard requirement; And recirculated cooling water directly absorbs an ammonium nitrate drop and crystal powder, has also enlarged source of pollution, directly discharging not only caused a large amount of an ammonium nitrate loss but also severe contamination water surrounding.
In addition; In processes such as the conveying of bulking ammonium nitrate explosive, crystallization ammonium nitrate, packing; The powder phenomenon of also unavoidably applying powder, escape, most producers have just just carried out direct discharging outdoor through simple exhausting, dust suction, have not only wasted material but also have polluted environment, corroded plant and equipment; Though the producer that also has just discharges after diluting through the flushing of Qingjian River water; But because washing water do not administer, the water surrounding that has been direct exhaust emission also, general effect does not reach and reclaims and utilize.
Summary of the invention:
The purpose of the utility model is to overcome above-mentioned defective, and a kind of vacuum crystallization separation buffer device that has the circulation cleaning function is provided.
The scheme of the utility model is: it is characterized in that: be made up of cyclonic separator, circulation groove, recycle pump, barometric pipe; The venting port pipeline connection of cyclonic separator inlet mouth and crystallizer; The cyclonic separator venting port is communicated with air cooler inlet mouth pipeline; The leakage fluid dram of cyclonic separator is communicated with circulation groove through barometric pipe, and the mouth of pipe is below the circulation groove liquid level; Cyclonic separator inner chamber inlet mouth below is unsettled to be provided with a circular spray tube, and its tube wall is uniformly distributed with some radial level spray apertures towards the cyclonic separator inwall, circular spray tube and a liquid-inlet pipe pipeline connection that passes the cyclonic separator wall; Circulation groove is provided with water supplement port, water port; Circulation groove water port and a recycle pump water-in pipeline connection; The water port one tunnel of recycle pump and cyclonic separator liquid-inlet pipe pipeline connection, the evaporation unit of another road and industrial crystallization ammonium nitrate production system or expanded ammonium nitrate system dissolve a jar pipeline connection.
The advantage of the utility model is:
1, can under the situation that does not change former basic technical process, transform, invest low, instant effect.
2, through spinning, circulation cleaning and buffering effect; A large amount of an ammonium nitrate small dropletss and crystal powder that air-flow is carried secretly effectively separate; Obtain the ammonium nitrate solution of 12%-35%; Can be directly through former process unit evaporation or dissolve system, finally the form with original product reclaims, and need not increase technological process and devices such as new distillation or dialysis.
3, if in circulating cleaning solution, add an amount of rare nitric acid; Also can (most ammonium nitrates or ammonium nitrate solution be entrained with a certain amount of free ammonia with the ammonia of wherein carrying secretly when reclaiming an ammonium nitrate; Ammonium nitrate unavoidably can decompose a certain amount of ammonia of generation in process of vacuum drying in addition); Form with an ammonium nitrate reclaims, and further improves recovering effect.
4, be the condensing surface of partition heat exchange if air cooler adopts; Barometric pipe also can move on to circulation groove; Ammonium nitrate this moment evaporation condensate expanded, crystallisation process can be all as circulating cleaning solution, and ammonium nitrate solution can not get into recirculated cooling water yet simultaneously, and evaporation condensate can be accomplished 100% washing; Through revaporization, exsiccant closed loop technological process, the discharge of wastewater source that can eliminate the drying process evaporation condensate.
5, also can be used for the recovery and the improvement of processable dust such as ammonium nitrate, ammonium sulfate, urea.
Description of drawings:
Fig. 1 is the utility model structural representation.
Fig. 2 is the A-A cutaway view Amplified image of Fig. 1.
Fig. 3 is an ammonium nitrate vacuum crystallization evaporation condensate circulation cleaning schematic flow sheet
Embodiment:
The structure of the utility model is characterized in that: be made up of cyclonic separator 1, circulation groove 5, recycle pump 6, barometric pipe 4; The venting port pipeline connection of cyclonic separator 1 inlet mouth and crystallizer 7; Cyclonic separator 1 venting port is communicated with air cooler 8 inlet mouth pipelines; The leakage fluid dram of cyclonic separator 1 is communicated with circulation groove 5 through barometric pipe 4, and the mouth of pipe is below circulation groove 5 liquid levels; Cyclonic separator 1 inner chamber inlet mouth below is unsettled to be provided with a circular spray tube 2, and its tube wall is uniformly distributed with some radial level spray apertures towards cyclonic separator 1 inwall, circular spray tube 2 and a liquid-inlet pipe pipeline connection that passes cyclonic separator 1 wall; Circulation groove 5 is provided with water supplement port, water port; Circulation groove 5 water port and recycle pump 6 water-in pipeline connections; The water port one tunnel of recycle pump 6 and cyclonic separator 1 liquid-inlet pipe pipeline connection, the evaporation unit 9 of another road and industrial crystallization ammonium nitrate production system or expanded ammonium nitrate system dissolve a jar pipeline connection.
Cyclonic separator 1 is for using the chemical industry setting always, and air-flow is got into around the motion of circle inwall by separator 1 top tangential direction, and suitable inwall was descending after drop produced cf-in the air-flow, and gas is then discharged by upper air vent.Original state adds washings by circulation groove 5 water-ins, sets up fluid-tight, washings circular flow in system then.The 100mm-150mm place establishes a circular spray tube 2 below the inner inlet mouth of cyclonic separator 1; Circular spray tube 2 caliber d are 25mm-32mm; The inwall of circular spray tube 2 and separator 1 keeps the distance of 100mm-150mm; The wall that circular spray tube 2 passes separator 1 is connected with external pipe blow-through, along the circumferential direction on the horizontal radial between circular spray tube 2 and separator 1 inwall, be uniformly distributed with 12-15 diameter d 1 for the aperture of 3mm-6mm as spray nozzle.
The air-flow that is entrained with the ammonium nitrate crystal powder gets into separator 1 and carries out spinning; Shower 2 is through the wall of spray nozzle with the past separator 1 of washings spray; Washings is along wall is washed away from top to bottom, dissolving, polymerization separate ammonium nitrate crystal powder and solution small droplets; Liquid discharge pipe and barometric pipe 4 through separator 1 bottom flow to circulation groove 5 under action of gravity; The circular spray tube 2 of sending into separator 1 from circulation groove 5 through recycle pump 6 again carries out circulation cleaning, and noncondensable gas is discharged from the top of separator 1.When circulation fluid concentration or liquid level reach one regularly, get into process system through recycle pump 6 pumps again toward the evaporation or the system of dissolving, finally the form with product reclaims ammonium nitrate.If in circulation groove 5, add an amount of rare nitric acid, also can in air-flow in the gas ammonia carried secretly, finally also ammonia is reclaimed with the form of ammonium nitrate.
When air cooler 8 is the condensing surface of indirect tube wall heat exchange; The evaporated vapor that comes out from separator 1 gets into the condensing surface 8 of partition heat exchange; Through the condensation separation of condensing surface, phlegma also flows to circulation groove 5 through barometric pipe 4, converges at circulation groove 5 with the washings of separator 1; Carry out circulation cleaning from circulation groove 5 through the circular spray tube 2 that recycle pump 6 is fed into separator 1 again, noncondensable gas is taken out toward vacuum pump 10 from the condensate buffering tank of condensing surface 8.
Claims (1)
1. vacuum crystallization separation buffer device that has the circulation cleaning function; It is characterized in that: form by cyclonic separator (1), circulation groove (5), recycle pump (6), barometric pipe (4); The venting port pipeline connection of cyclonic separator (1) inlet mouth and crystallizer (7); Cyclonic separator (1) venting port is communicated with air cooler (8) inlet mouth pipeline, and the leakage fluid dram of cyclonic separator (1) is communicated with circulation groove (5) through barometric pipe (4), and the mouth of pipe is in circulation groove (5) liquid level below; The unsettled circular spray tube (2) that is provided with in cyclonic separator (1) inner chamber inlet mouth below; Its tube wall is uniformly distributed with some radial level spray apertures towards cyclonic separator (1) inwall, circular spray tube (2) and a liquid-inlet pipe pipeline connection that passes cyclonic separator (1) wall; Circulation groove (5) is provided with water supplement port, water port; Circulation groove (5) water port and a recycle pump (6) water-in pipeline connection; The water port one tunnel of recycle pump (6) and cyclonic separator (1) liquid-inlet pipe pipeline connection, the evaporation unit (9) of another road and industrial crystallization ammonium nitrate production system or expanded ammonium nitrate system dissolve a jar pipeline connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203492777U CN202265421U (en) | 2011-09-15 | 2011-09-15 | Vacuum crystal separating and buffering device with circularly-washing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203492777U CN202265421U (en) | 2011-09-15 | 2011-09-15 | Vacuum crystal separating and buffering device with circularly-washing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202265421U true CN202265421U (en) | 2012-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203492777U Expired - Fee Related CN202265421U (en) | 2011-09-15 | 2011-09-15 | Vacuum crystal separating and buffering device with circularly-washing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202265421U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736326A (en) * | 2014-06-18 | 2016-07-06 | 宝钢工程技术集团有限公司 | Vacuumizing process equipment |
-
2011
- 2011-09-15 CN CN2011203492777U patent/CN202265421U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736326A (en) * | 2014-06-18 | 2016-07-06 | 宝钢工程技术集团有限公司 | Vacuumizing process equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20160915 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |