CN101659260A - Device and method for automatic control of acid unloading from train - Google Patents
Device and method for automatic control of acid unloading from train Download PDFInfo
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- CN101659260A CN101659260A CN200810013001A CN200810013001A CN101659260A CN 101659260 A CN101659260 A CN 101659260A CN 200810013001 A CN200810013001 A CN 200810013001A CN 200810013001 A CN200810013001 A CN 200810013001A CN 101659260 A CN101659260 A CN 101659260A
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- acid
- automatic control
- vacuum pump
- control device
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Abstract
The invention relates to a method for the automatic control of sulfuric acid unloading in chemical production, in particular to a device and a method for the automatic control of acid unloading from atrain in alumina production. The device for the automatic control of the acid unloading from the train comprises a train tank, wherein the train tank is communicated with a buffer tank through an acid unloading arm; the buffer tank is communicated with a water absorption tank through a pipe; the water absorption tank is communicated with a vacuum pump through a vacuum pump exhaust pipe; the buffer tank is communicated with a submerged pump through a pipe and is provided with a liquid level meter and a vacuum pressure gauge; the submerged pump is an electrical submerged pump; the vacuum pump is an electrical vacuum pump; and the liquid level meter, the vacuum pressure gauge and the electrical submerged pump are connected with a computer system. The control method has the advantage of effectively discharging residual acid in the buffer tank. The control method requires manual operation only when starting the vacuum pump and completes the follow-up operation by using a computer, therebysaving labor force, ensuring simple and reliable operation and realizing safe production.
Description
Technical field
The present invention relates to the autocontrol method that sulfuric acid is unloaded in Chemical Manufacture, relate in particular to the automatic control device and the method for a kind of acid unloading from train in the alumina producing.
Background technology
The method that present fuming sulfuric acid unloads acid is a lot, has centrifugal pump to unload acid system, and pressurized air is unloaded acid system, and acid system is unloaded in siphon.These unload sour method and adopt the operation of experiential operating method usually, and promptly the operative employee relies on knowhow execute-in-place for many years, and operating efficiency is low.Because acid is a kind of corrosive property dangerous material, adopt experiential operating fully simultaneously, then have accident potential in process of production.
Summary of the invention
In order to solve the problems of the technologies described above automatic control device and the method that the invention provides a kind of acid unloading from train, purpose is to eliminate safe hidden trouble, and realizes the automation unload sour car unloading operation, satisfies safety, quick-release, requirement that bed material is few simultaneously to greatest extent.
For reaching the automatic control device that above-mentioned purpose the present invention is achieved in that acid unloading from train, its structure is as follows: train tanker vehicle is communicated with expansion tank by unloading sour oil filling riser, expansion tank is communicated with the water tourie by pipeline, the water tourie is communicated with vacuum pump by the vacuum pump extraction pipe, expansion tank is communicated with submerged pump by pipeline, on expansion tank, be provided with liquidometer and vacuum manometer, submerged pump is electronic submerged pump, vacuum pump is an electric vacuum pump, and liquidometer, vacuum manometer, electric vacuum pump and electronic submerged pump are connected with computer system.
Described submerged pump is 1-4, and submerged pump is communicated with the nadir of expansion tank.
Described submerged pump outlet pipe communicates with carrying acid tube, is provided with motorized valve on the conveying acid tube.
Described motorized valve is connected with computer system.
Described expansion tank is a vertical storage tank, and expansion tank is provided with the vacuum conditions pipe.
Described vacuum conditions pipe is provided with electric control valve.
Described electric control valve is connected with computer system.
The bottom of described water tourie is provided with the PH index gauge, and the measurement range of PH index gauge is 4～7.
Described PH index gauge is connected with computer system.
Described water tourie is provided with coolant inlet pipe and gargle pipe.
Described coolant inlet pipe is located at the top of water tourie.
Described coolant inlet pipe is provided with into water motorized valve.
Described gargle pipe is located at the bottom of water tourie.
Described gargle pipe is provided with the discharging motorized valve.
Described liquid level is counted the continuous gauging radar type liquid-level gauge.
Described vacuum pump is discharged gas by the vacuum pump freeing pipe.
Described vacuum pump extraction pipe is provided with the vacuum pump valve.
The autocontrol method of acid unloading from train, after comprising the steps: that vacuum pump starts, vacuum manometer is measured and is formed the degree of vacuum value in the expansion tank, and sends signal to computer system, after acid enters expansion tank, measure the electrolyte level of acid by liquidometer, when acid solution face height was higher than tubular stinger lower end mouth of pipe 200mm, computer system was closed vacuum pump, opened motorized valve simultaneously, open submerged pump, outwards carry sulfuric acid.
Degree of vacuum is low excessively in the described expansion tank, computer system output signal then, and the valve opening of control electric control valve is regulated degree of vacuum in the expansion tank.
After described liquidometer detected the slack tank signal of expansion tank, computer system was closed submerged pump, closed motorized valve simultaneously, finished to unload sour flow process.
The autocontrol method of acid unloading from train, also comprise the steps: after the acid mist in the expansion tank enters the water tourie, to be absorbed by water, gas is discharged by the vacuum pump freeing pipe after entering in the vacuum pump by the vacuum pump extraction pipe, PH index gauge continuous gauging absorbs the pH value of water, when pH value equals 4, computer system is opened discharging motorized valve discharging acid solution, and open into the water motorized valve injects new water in the water tourie.
Advantage of the present invention and effect are as follows: this control method can actv. be discharged spent acid in the expansion tank.Use this control method just to need M/C when opening vacuum pump, subsequent operation is finished by computing machine, not only save labour power, and operation is simple and reliable, can realize safety in production.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1, train tanker vehicle; 2, unload sour oil filling riser; 3, expansion tank; 4, submerged pump; 5, pipeline; 6, water tourie; 7, vacuum pump; 8, vacuum conditions pipe; 9, electric control valve; 10, liquidometer; 11, vacuum manometer; 12, motorized valve; 13, carry acid tube; 14, PH index gauge; 15, discharging motorized valve; 16, gargle pipe; 17, water inlet motorized valve; 18, coolant inlet pipe; 19, vacuum pump valve; 20, computer system; 21, tubular stinger; 22, vacuum pump extraction pipe.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
The automatic control device of acid unloading from train of the present invention as shown in the figure, its structure is as follows: train tanker vehicle 1 is communicated with expansion tank 3 by unloading sour oil filling riser 2, be provided with tubular stinger 21 in the expansion tank 3, tubular stinger 21 with unload sour oil filling riser 2 and be connected, expansion tank 3 is communicated with water tourie 6 by pipeline, water tourie 6 is communicated with vacuum pump 7 by vacuum pump extraction pipe 22, vacuum pump extraction pipe 22 is provided with vacuum pump valve 19, expansion tank 3 is communicated with submerged pump 4 by pipeline, on expansion tank 3, be provided with liquidometer 10 and vacuum manometer 11, submerged pump 4 is electronic submerged pump, vacuum pump 7 is an electric vacuum pump, vacuum pump 7 is discharged gas by the vacuum pump freeing pipe, liquidometer 10, vacuum manometer 11, electric vacuum pump 7 is connected with computer system 20 with electronic submerged pump 4, and liquidometer 10 is the continuous gauging radar type liquid-level gauge.Submerged pump 4 is 1-4, and submerged pump 4 is communicated with the nadir of expansion tank 3, and submerged pump 4 outlet pipes communicate with carrying acid tube 13, is provided with motorized valve 12 on conveying acid tube 13, and motorized valve 12 is connected with computer system 20.Expansion tank 3 is a vertical storage tank, and expansion tank 3 is provided with vacuum conditions pipe 8, and vacuum conditions pipe 8 is provided with electric control valve 9, and electric control valve 9 is connected with computer system 20.The bottom of water tourie 6 is provided with PH index gauge 14, the measurement range of PH index gauge 14 is 4～7, PH index gauge 14 is connected with computer system 20, water tourie 6 is provided with coolant inlet pipe 18 and gargle pipe 16, coolant inlet pipe 18 is located at the top of water tourie 6, coolant inlet pipe 18 is provided with into water motorized valve 17, and gargle pipe 16 is located at the bottom of water tourie 6, and gargle pipe 16 is provided with discharging motorized valve 15.
The autocontrol method of acid unloading from train of the present invention comprises the steps: earlier the acid mist in the fuming sulfuric acid in the train tanker vehicle to be discharged by expansion tank, water tourie and vacuum pump; Again the fuming sulfuric acid in the train tanker vehicle is transported in the sour storage tank of on-site by submerged pump.
After vacuum pump starts, vacuum manometer is measured and is formed the degree of vacuum value in the expansion tank, and send signal to computer system, if degree of vacuum is low excessively in the expansion tank, computer system output signal then, the valve opening of control electric control valve, regulate degree of vacuum in the expansion tank, after entering the water tourie, the acid mist in the expansion tank absorbed by water, gas is discharged by the vacuum pump freeing pipe after entering in the vacuum pump by the vacuum pump extraction pipe, and PH index gauge continuous gauging absorbs the pH value of water, when pH value equals 4, computer system is opened discharging motorized valve discharging acid solution, and open into the water motorized valve injects new water in the water tourie; After racking up acid mist, acid enters expansion tank, measures the electrolyte level of acid by liquidometer, and when acid solution face height was higher than tubular stinger lower end mouth of pipe 200mm, computer system was closed vacuum pump, opened motorized valve simultaneously, opens submerged pump, outwards carries sulfuric acid; After liquidometer detected the slack tank signal of expansion tank, computer system was closed submerged pump, closed motorized valve simultaneously, finished to unload sour flow process.
Claims (21)
1, the automatic control device of acid unloading from train, it is characterized in that structure is as follows: train tanker vehicle is communicated with expansion tank by unloading sour oil filling riser, expansion tank is communicated with the water tourie by pipeline, the water tourie is communicated with vacuum pump by the vacuum pump extraction pipe, expansion tank is communicated with submerged pump by pipeline, on expansion tank, be provided with liquidometer and vacuum manometer, submerged pump is electronic submerged pump, vacuum pump is an electric vacuum pump, and liquidometer, vacuum manometer, electric vacuum pump and electronic submerged pump are connected with computer system.
2, the automatic control device of acid unloading from train according to claim 1 is characterized in that described submerged pump is 1-4, and submerged pump is communicated with the nadir of expansion tank.
3, the automatic control device of acid unloading from train according to claim 2 is characterized in that described submerged pump outlet pipe communicates with carrying acid tube, is provided with motorized valve on the conveying acid tube.
4, the automatic control device of acid unloading from train according to claim 3 is characterized in that described motorized valve is connected with computer system.
5, the automatic control device of acid unloading from train according to claim 1 is characterized in that described expansion tank is a vertical storage tank, and expansion tank is provided with the vacuum conditions pipe.
6, the automatic control device of acid unloading from train according to claim 5 is characterized in that described vacuum conditions pipe is provided with electric control valve.
7, the automatic control device of acid unloading from train according to claim 5 is characterized in that described electric control valve is connected with computer system.
8, the automatic control device of acid unloading from train according to claim 1 is characterized in that the bottom of described water tourie is provided with the PH index gauge, and the measurement range of PH index gauge is 4～7.
9, the automatic control device of acid unloading from train according to claim 8 is characterized in that described PH index gauge is connected with computer system.
10, the automatic control device of acid unloading from train according to claim 8 is characterized in that described water tourie is provided with coolant inlet pipe and gargle pipe.
11, the automatic control device of acid unloading from train according to claim 10 is characterized in that described coolant inlet pipe is located at the top of water tourie.
12, the automatic control device of acid unloading from train according to claim 11 is characterized in that described coolant inlet pipe is provided with into water motorized valve.
13, the automatic control device of acid unloading from train according to claim 10 is characterized in that described gargle pipe is located at the bottom of water tourie.
14, the automatic control device of acid unloading from train according to claim 13 is characterized in that described gargle pipe is provided with the discharging motorized valve.
15, the automatic control device of acid unloading from train according to claim 1 is characterized in that described liquid level counts the continuous gauging radar type liquid-level gauge.
16, the automatic control device of acid unloading from train according to claim 15 is characterized in that described vacuum pump discharged gas by the vacuum pump freeing pipe.
17, the automatic control device of acid unloading from train according to claim 1 is characterized in that described vacuum pump extraction pipe is provided with the vacuum pump valve.
18, the autocontrol method of acid unloading from train, after it is characterized in that comprising the steps: that vacuum pump starts, vacuum manometer is measured and is formed the degree of vacuum value in the expansion tank, and sends signal to computer system, after acid enters expansion tank, measure the electrolyte level of acid by liquidometer, when acid solution face height was higher than tubular stinger lower end mouth of pipe 200mm, computer system was closed vacuum pump, opened motorized valve simultaneously, open submerged pump, outwards carry sulfuric acid.
19, the autocontrol method of acid unloading from train according to claim 18 is characterized in that degree of vacuum is low excessively in the described expansion tank, computer system output signal then, and the valve opening of control electric control valve is regulated degree of vacuum in the expansion tank.
20, the autocontrol method of acid unloading from train according to claim 18, it is characterized in that described liquidometer detects the slack tank signal of expansion tank after, computer system is closed submerged pump, closes motorized valve simultaneously, finishes to unload sour flow process.
21, the autocontrol method of acid unloading from train according to claim 18, it is characterized in that also comprising the steps: after the acid mist in the expansion tank enters the water tourie, to be absorbed by water, gas is discharged by the vacuum pump freeing pipe after entering in the vacuum pump by the vacuum pump extraction pipe, PH index gauge continuous gauging absorbs the pH value of water, when pH value equals 4, computer system is opened discharging motorized valve discharging acid solution, and open into the water motorized valve injects new water in the water tourie.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100130014A CN101659260B (en) | 2008-08-28 | 2008-08-28 | Device and method for automatic control of acid unloading from train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100130014A CN101659260B (en) | 2008-08-28 | 2008-08-28 | Device and method for automatic control of acid unloading from train |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101659260A true CN101659260A (en) | 2010-03-03 |
| CN101659260B CN101659260B (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100130014A Expired - Fee Related CN101659260B (en) | 2008-08-28 | 2008-08-28 | Device and method for automatic control of acid unloading from train |
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| Country | Link |
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| CN (1) | CN101659260B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109765852A (en) * | 2017-11-09 | 2019-05-17 | 浙江兆达经贸有限公司 | A kind of positive pressure industrial acids handling control system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4059134A (en) * | 1976-06-21 | 1977-11-22 | Violette Theodore T | Mobile drum filling assembly |
| CN2205791Y (en) * | 1993-12-22 | 1995-08-23 | 重庆钢铁(集团)公司 | Acid unloading device for tank wagon |
| EP1375414A3 (en) * | 1998-12-30 | 2004-01-07 | Semco Corporation | Chemical delivery systems and methods of delivery |
-
2008
- 2008-08-28 CN CN2008100130014A patent/CN101659260B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109765852A (en) * | 2017-11-09 | 2019-05-17 | 浙江兆达经贸有限公司 | A kind of positive pressure industrial acids handling control system |
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| Publication number | Publication date |
|---|---|
| CN101659260B (en) | 2012-05-23 |
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Address after: 100032 Room 309, block C, apricot Road, No. 99, Beijing, Haidian District Patentee after: China Aluminum International Technology Development Co., Ltd. Address before: The 100032 Beijing Financial Street, No. 33 Winton building B block 15 layer Patentee before: China Aluminum International Technology Development Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20160828 |