CN101693547A - Dissolution system - Google Patents
Dissolution system Download PDFInfo
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- CN101693547A CN101693547A CN200910093672A CN200910093672A CN101693547A CN 101693547 A CN101693547 A CN 101693547A CN 200910093672 A CN200910093672 A CN 200910093672A CN 200910093672 A CN200910093672 A CN 200910093672A CN 101693547 A CN101693547 A CN 101693547A
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- outlet
- surge pump
- unit
- stripping
- nitrogen bag
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Abstract
The invention discloses a dissolution system which comprises a dissolution machine set consisting of a flash evaporating machine set and a dissolution digester machine set, a pre-heating sleeve pipe and a diaphragm pump, wherein the diaphragm pump is connected with the pre-heating sleeve pipe through a pipeline; the pre-heating sleeve pipe is connected with the dissolution digester machine set; and a slurry regulating valve is added on a connecting pipeline of a final-stage outlet of the dissolution digester machine set and the flash evaporating machine set. The dissolution system cancels a pulse buffer having little effect, thereby eliminating vibration caused by pulses of an outlet pipeline of the diaphragm pump, reducing high investment and operation cost caused by the pulse buffer and simplifying operations. The diaphragm pump can optionally promote the flow and ensure the safe and reliable system.
Description
Technical field
The present invention relates to a kind of digestion series, be specifically related to a kind of digestion series of cancelling pulse buffer.
Background technology
Traditional Bayer process alumina producing pressure digestion system disposes pulse buffer in the surge pump outlet bar none, even adopts pipeline preheating pressure cooker digestion series often between pre-thermal sleeve and first autoclave pulse buffer to be installed also.The pulse buffer vibration that the pump discharge pulse brings that is used to eradicate a mental barrier.Surge pump is a kind of piston-type volumetric pump, every pump has the piston more than 2 at least, its reciprocal jig frequency motion has caused the stream of pulses of slip, and this pulse often causes surge pump outlet conduit even preheating telescopic seriously to vibrate, and then causes tubing system and factory building vibration.Utilizing the material level of pulse buffer to control interlocking automatically, to come the setting pulse snubber be inflation or exhaust, charging into high pressure air when material level is high descends material level, exhausted air rose material level when material level was low, thereby played equilibrium pressure and material level, eliminated the effect of pulse.But pulse buffer has following defective:
1, investment is big, and every group of supporting 2 pulse buffer of stripping unit, 6 radioactive source level gages, 6 pneumavalves, 1 High Pressure Air Compressor, 1 high-pressure air storage tank and the safety valve that matches, instrument etc. are invested about 6,000,000 yuan.
2, running cost height, 1 annual about 150,000 yuan of power consumption that moves of High Pressure Air Compressor, about 1,000,000 yuan of annual maintenance, cleaning, verification expense such as air compressor machine, pulse buffer, instrument, 100,000 yuan of expenses such as the various checks in radioactive source every year, keeping, and also dangerous.1,350,000 yuan of the total expenses moons.
Find from the long-term production practice that 3, though disposed pulse buffer, unit is when starting, be that surge pump begins when the unit feed, when unit pressure less than surge pump outlet nitrogen bag pressure power, the surge pump flow can not be 170m as certain factory greater than a certain particular value
3/ h, otherwise the vibration of surge pump outlet conduit is very serious, even can make pipeline break, even surge pump has 520m
3The ability of/h can not be carried flow easily.We are called stagnation point with this flow.When unit pressure greater than surge pump outlet nitrogen bag pressure power, the surge pump flow just can arbitrarily promote, and can not cause vibration.Therefore vibration is irrelevant with pulse buffer, but relevant with the relation of unit pressure and surge pump outlet nitrogen bag pressure power.
Summary of the invention
(1) goal of the invention
The purpose of this invention is to provide a kind of digestion series, this digestion series has been cancelled and has been acted on little pulse buffer and vibration that the pump discharge pipeline that eradicates a mental barrier simultaneously brings owing to pulse.
(2) summary of the invention
A kind of digestion series, comprise: the stripping unit of forming by flash distillation unit and stripping autoclave unit, pre-thermal sleeve and surge pump, it is characterized in that, surge pump is by the pre-thermal sleeve of pipe connection, the telescopic joint stripping autoclave of preheating unit increases the slip variable valve on the final stage outlet of stripping autoclave unit and the connecting tube of flash distillation unit.
Wherein, at least 2 of described surge pumps, every is disposed a pipeline, and described pipeline collaborates in pre-thermal sleeve import again, and it is jointly to the feed amount of the described stripping unit full load inlet amount greater than the stripping unit.
Wherein, the flow rate control of described pipeline is between 1.6-2.1m/s.
Wherein, outlet of described surge pump and outlet header are equipped with the nitrogen bag, the vibration that the pump pulse that is used to eradicate a mental barrier brings, stablize the slip flow.
Wherein, described surge pump outlet and outlet header install at least 1 pressure transmitter of interlocking with surge pump outlet nitrogen bag and outlet header's nitrogen bag, are used for at-once monitor surge pump outlet nitrogen bag pressure power and outlet header's nitrogen bag pressure power.
Wherein, the preliminary filling pressure of described surge pump outlet nitrogen bag is the 55-60% of machine stripping unit setting pressure.
Wherein, the preliminary filling pressure of described surge pump outlet header nitrogen bag is the 50-55% of stripping unit setting pressure.
Wherein, described slip variable valve has the adjusting aperture, and described slip variable valve and stripping unit, surge pump interlocking make stripping unit pressure be higher than surge pump outlet nitrogen bag pressure power and outlet header's nitrogen bag pressure power all the time.
(3) beneficial effect
The present invention has following beneficial effect:
1, the little pulse buffer of cancellation effect has been eliminated the surge pump outlet conduit simultaneously owing to the vibration that pulse brings, and has reduced because great number investment and the running cost that pulse buffer causes;
2, simplify the operation, make surge pump can arbitrarily promote flow, and make security of system reliable.
Description of drawings
Fig. 1 is according to digestion series synoptic diagram of the present invention.
Embodiment
The digestion series that the present invention proposes no longer disposes pulse buffer, has cancelled supporting with it radioactive source, instrument, air compressor machine, high pressure tank etc. simultaneously, and accompanying drawings is as follows.
Digestion series as shown in Figure 1, comprise: the stripping unit of forming by flash distillation unit 1 and stripping autoclave unit 2, pre-thermal sleeve 3 and surge pump 5, surge pump 5 is by the pre-thermal sleeve 3 of pipe connection, pre-thermal sleeve 3 connects stripping autoclave unit 2, increases slip variable valve 4 (MV106C) on the final stage outlet of stripping autoclave unit 2 and the connecting tube of flash distillation unit 1.
At least dispose 2 surge pumps 5, every is disposed a pipeline, and pipeline collaborates in pre-thermal sleeve 3 imports again, and it should be 600m as stripping unit full load inlet amount greater than the full load inlet amount of stripping unit to the feed amount of described stripping unit jointly
3/ h then can select to install 2 each 350m
3The surge pump 5 of/h, or 3 each 250m are installed
3The surge pump 5 of/h, the flow rate control of pipeline is between 1.6-2.1m/s.
The preliminary filling pressure of surge pump 5 outlet nitrogen bags is the 55-60% of machine stripping group setting pressure.
The preliminary filling pressure of surge pump 5 outlet header's nitrogen bags is the 50-55% of stripping unit setting pressure.
Above embodiment only is used to illustrate the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; under the situation that does not break away from the spirit and scope of the present invention; can also make various variations and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (8)
1. digestion series, comprise: the stripping unit of forming by flash distillation unit (1) and stripping autoclave unit (2), pre-thermal sleeve (3) and surge pump (5), it is characterized in that, surge pump (5) is by the pre-thermal sleeve of pipe connection (3), pre-thermal sleeve (3) connects stripping autoclave unit (2), increases slip variable valve (4) on the final stage outlet of stripping autoclave unit (2) and the connecting tube of flash distillation unit (1).
2. digestion series as claimed in claim 1, it is characterized in that, (5) at least 2 of described surge pumps, every is disposed a pipeline, described pipeline collaborates in pre-thermal sleeve import again, and it is jointly to the feed amount of the described stripping unit full load inlet amount greater than the stripping unit.
3. digestion series as claimed in claim 2 is characterized in that the flow rate control of described pipeline is between 1.6-2.1m/s.
4. digestion series as claimed in claim 3 is characterized in that, described surge pump (5) outlet and outlet header are equipped with the nitrogen bag, the vibration that pump (5) pulse that is used to eradicate a mental barrier brings, stablizes the slip flow.
5. digestion series as claimed in claim 4, it is characterized in that, described surge pump (5) outlet and outlet header install at least 1 pressure transmitter of interlocking with surge pump (5) outlet nitrogen bag and outlet header's nitrogen bag, are used for at-once monitor surge pump (5) outlet nitrogen bag pressure power and outlet header's nitrogen bag pressure power.
6. digestion series as claimed in claim 4 is characterized in that, the preliminary filling pressure of described surge pump (5) outlet nitrogen bag is the 55-60% of machine stripping unit setting pressure.
7. digestion series as claimed in claim 4 is characterized in that, the preliminary filling pressure of described surge pump (5) outlet header's nitrogen bag is the 50-55% of stripping unit setting pressure.
8. as the arbitrary described digestion series of claim 1-7, it is characterized in that, described slip variable valve (4) has the adjusting aperture, described slip variable valve and stripping unit, surge pump (5) interlocking make stripping unit pressure be higher than surge pump (5) outlet nitrogen bag pressure power and outlet header's nitrogen bag pressure power all the time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100936720A CN101693547B (en) | 2009-09-27 | 2009-09-27 | Dissolution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100936720A CN101693547B (en) | 2009-09-27 | 2009-09-27 | Dissolution system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101693547A true CN101693547A (en) | 2010-04-14 |
| CN101693547B CN101693547B (en) | 2012-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100936720A Active CN101693547B (en) | 2009-09-27 | 2009-09-27 | Dissolution system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101693547B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225779A (en) * | 2011-05-11 | 2011-10-26 | 三门峡巨新冶金技术有限公司 | High-pressure dissolution system and method for bauxite |
-
2009
- 2009-09-27 CN CN2009100936720A patent/CN101693547B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225779A (en) * | 2011-05-11 | 2011-10-26 | 三门峡巨新冶金技术有限公司 | High-pressure dissolution system and method for bauxite |
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| Publication number | Publication date |
|---|---|
| CN101693547B (en) | 2012-02-08 |
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Effective date of registration: 20180510 Address after: 044300 Pinglu County, Shanxi Province, Jianzhen Jiandong Village Patentee after: Shanxi Fu Sheng aluminum industry Co., Ltd. Address before: 310005 20-22 building, Jinjiang tower, 111 Hu Shu Nan Road, Hangzhou, Zhejiang. Patentee before: Hangzhou Jinjiang Group Co., Ltd. |