CN201857303U - Methanol-water separating tower bottom wastewater treatment device - Google Patents
Methanol-water separating tower bottom wastewater treatment device Download PDFInfo
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- CN201857303U CN201857303U CN2010205903280U CN201020590328U CN201857303U CN 201857303 U CN201857303 U CN 201857303U CN 2010205903280 U CN2010205903280 U CN 2010205903280U CN 201020590328 U CN201020590328 U CN 201020590328U CN 201857303 U CN201857303 U CN 201857303U
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Abstract
A methanol-water separating tower bottom wastewater treatment device comprises a methanol-water separating tower, a wastewater pump, a biochemical water treatment system and a carbon dioxide tail gas washing tower. A methanol-water separating tower bottom is communicated with the biochemical water treatment system by the aid of a wastewater pipeline; a wastewater pump and a biochemical water stop valve are mounted on the wastewater pipeline; a wastewater branch pipe is arranged on the wastewater pipeline between the wastewater pump and the biochemical water stop valve; and the wastewater branch pipe is connected into the carbon dioxide tail gas washing tower after being joined with a desalted water pipeline. The methanol-water separating tower bottom wastewater treatment device is capable of adjusting drainage of methanol-water separating tower bottom wastewater at any time as needed, enables drainage of the tower bottom wastewater to meet the technical requirements of drainage, eradicates draining the wastewater into a trench, reducing pollution of surrounding environments, and ensures normal operation of the sewage treatment system.
Description
Technical field
The utility model relates to a kind of wastewater treatment equipment, particularly relates to the wastewater treatment equipment when methyl alcohol exceeds standard in the waste water at the bottom of the methanol-water separation Tata in a kind of low-temp methanol water conservancy project skill.
Background technology
Coal-based synthetic oil production technology mainly adopts the indirect liquefaction method, promptly coal is become the gas that is rich in various hydro carbons by high temperature, high pressure, with these gas purification, become processed oil and other Chemicals after the after chemical reaction again, its main products comprises diesel oil, paraffin, petroleum naphtha etc.
On the low-temp methanol washing process link that coal-based synthetic oil is produced, the methanol value＜100ppm at the bottom of the design requirements methanol-water separation Tata in the waste water.But in actual production, waste water often exceeded standard at the bottom of methanol-water separated Tata, sometimes when the steam fluctuation causes operating mode unstable, methanol content in the waste water is up to several thousand even ppm up to ten thousand, after such methanol waste water entered biochemical treatment apparatus, because methanol content height, eutrophication cause bacterium to be made extremely full.Simultaneously, winter temperature is lower, and waste water was bad owing to being incubated to the pipeline of biochemical treatment apparatus at the bottom of methanol-water separated Tata, often frozen, cause methanol waste water not send into biochemical treatment apparatus smoothly, influence the operation of methanol-water knockout tower, even have influence on the operation of whole pre-wash section.
When waste water at the bottom of the methanol-water separation Tata is smooth to the pipeline of biochemical treatment apparatus, waste water can only enter trench by leading to drench at the bottom of the tower, cause Working environment methyl alcohol smell excessive, atmosphere pollution, simultaneously, waste water does not directly enter sink drainage through biochemical treatment at the bottom of the tower, has strengthened the processing pressure of sink drainage, even has influenced the normal operation of entire sewage system.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned technical problem, provides a kind of simple in structure, easy to operate methanol-water to separate wastewater treatment equipment at the bottom of the Tata.
Wastewater treatment equipment comprised methanol-water knockout tower, waste water pump, biochemical water treatment system and carbon dioxide tail gas washing tower at the bottom of methanol-water of the present utility model separated Tata, be communicated with biochemical water treatment system by waste pipe at the bottom of the tower of methanol-water knockout tower, and waste water pump and biochemical water stopping valve be installed on waste pipe, on the waste pipe between described waste water pump and the biochemical water stopping valve, be provided with the waste water arm, and described waste water arm is provided with the arm stopping valve, after this waste water arm and de-salted water pipeline converge, be linked in the carbon dioxide tail gas washing tower.
The utility model also is provided with the methanol content check point on waste pipe, at any time the methanol content in the waste water at the bottom of the methanol-water separation Tata is monitored.
The effect of carbon dioxide tail gas washing tower is the methyl alcohol that utilizes in the de-salted water carbon dioxide scrubbing tail gas, contain part methyl alcohol in the de-salted water behind the washing tail gas, this part contains that the de-salted water of methyl alcohol is follow-up send into extractor and participate in extraction after, send into the methanol-water knockout tower again and carry out removing of water in the methyl alcohol.Methyl alcohol overstandard waste water and the de-salted water behind the carbon dioxide tail gas washing tower washing methyl alcohol that methanol-water separates at the bottom of the Tata are about the same, can participate in the rectifying of follow-up extraction and methanol-water knockout tower equally.Therefore, the utility model is at the bottom of methanol-water separates Tata and set up connecting tube between the carbon dioxide tail gas washing tower, the methanol content of waste water exceeds standard seriously (generally＞1000ppm) time at the bottom of methanol-water separates Tata, cutting off methanol-water separates at the bottom of the Tata and the communication passage of biochemical water treatment system, waste water directly caused the carbon dioxide tail gas washing tower at the bottom of methanol-water separated Tata, carry out circulation cleaning and distillation processing, after analysis indexes is qualified, switches to biochemical water treatment system again and handle discharging after qualified.Perhaps weather temperature is lower in the winter time, and methanol-water separates at the bottom of the Tata that waste water to biochemical water treatment system pipeline is frozen and when smooth, methanol-water is separated Tata at the bottom of waste water directly cause the carbon dioxide tail gas washing tower, get rid of to carry out fault.
By above-mentioned technological transformation of the present utility model, can make adjustment to the discharging of waste water at the bottom of the methanol-water separation Tata at any time as required, the discharging of waste water has reached the draining technology requirement at the bottom of the tower, stopped waste water is entered the phenomenon of trench, reduced pollution, guaranteed the normal operation of Sewage treatment systems surrounding environment.
When the naphthalene obstruction takes place to biochemical water system line temperature reduction in waste water at the bottom of the methanol-water separation Tata in the winter time, waste water at the bottom of the tower is switched to the carbon dioxide tail gas washing tower, thereby have sufficient time to blow waste line at the bottom of the tower that passes to biochemical water system, solved when winter, temperature was low, because of the problem of environmental pollution of line clogging with direct discharging of waste water.
Methanol-water is separated after waste water causes the carbon dioxide tail gas washing tower at the bottom of the Tata, original de-salted water washing tail gas is not had any impact, prove to be interrupted and use methanol-water to separate waste water at the bottom of the Tata to come methyl alcohol in the tail gas in the carbon dioxide scrubbing tail gas washing tower.
Description of drawings
Fig. 1 is the structural representation that the utility model methanol-water separates wastewater treatment equipment at the bottom of the Tata.
Embodiment
Structure such as Fig. 1 of wastewater treatment equipment at the bottom of the methanol-water separation Tata, at the bottom of the tower of methanol-water knockout tower 1, be provided with waste pipe 5, waste pipe 5 is communicated with biochemical water treatment system 4, and waste water pump 3 and biochemical water stopping valve 6 are installed on waste pipe 5, waste water at the bottom of the tower directly can be sent to biochemical water treatment system 4 by waste water pump 5.
Be provided with waste water arm 9 on the waste pipe 5 between waste water pump 3 and the biochemical water stopping valve 6, waste water arm 9 is linked in the carbon dioxide tail gas washing tower 2 after converging with de-salted water pipeline 7.Be provided with arm stopping valve 10 on waste water arm 9, de-salted water pipeline 7 is provided with de-salted water stopping valve 8, and waste pipe 5 is provided with methanol content check point 11.
When methyl alcohol exceeds standard in the waste water at the bottom of methanol-water separates Tata, start arm stopping valve 10, close biochemical water stopping valve 6, overstandard waste water and de-salted water converge and enter the carbon dioxide tail gas washing tower; Treat at the bottom of the tower in the waste water to close arm stopping valve 10 after the methyl alcohol conformance with standard, open biochemical water stopping valve 6, waste water at the bottom of the tower is sent to biochemical water treatment system.
Winter temperature lower, methanol-water separates at the bottom of the Tata waste pipe because of enduring cold when smooth, startup arm stopping valve 10 is closed biochemical water stopping valve 6, and waste water is imported in the carbon dioxide tail gas washing tower temporarily.
Claims (2)
1. methanol-water separates wastewater treatment equipment at the bottom of the Tata, comprise methanol-water knockout tower (1), waste water pump (3), biochemical water treatment system (4) and carbon dioxide tail gas washing tower (2), be communicated with biochemical water treatment system (4) by waste pipe (5) at the bottom of the tower of methanol-water knockout tower (1), and waste water pump (3) and biochemical water stopping valve (6) be installed on waste pipe (5), it is characterized in that on the waste pipe (5) between described waste water pump (3) and the biochemical water stopping valve (6), being provided with waste water arm (9), and described waste water arm (9) is provided with arm stopping valve (10), this waste water arm (9) is linked in the carbon dioxide tail gas washing tower (2) after converging with de-salted water pipeline (7).
2. wastewater treatment equipment at the bottom of the methanol-water separation Tata according to claim 1 is characterized in that being provided with methanol content check point (11) on waste pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205903280U CN201857303U (en) | 2010-10-30 | 2010-10-30 | Methanol-water separating tower bottom wastewater treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205903280U CN201857303U (en) | 2010-10-30 | 2010-10-30 | Methanol-water separating tower bottom wastewater treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201857303U true CN201857303U (en) | 2011-06-08 |
Family
ID=44103116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205903280U Expired - Fee Related CN201857303U (en) | 2010-10-30 | 2010-10-30 | Methanol-water separating tower bottom wastewater treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201857303U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106215631A (en) * | 2016-08-15 | 2016-12-14 | 航天长征化学工程股份有限公司 | System and method for treating methanol in pulverized coal gasification vented carbon dioxide |
| CN106268191A (en) * | 2016-09-13 | 2017-01-04 | 中国天辰工程有限公司 | A kind of low-temperature methanol washing tail-gas water washing device and process thereof |
-
2010
- 2010-10-30 CN CN2010205903280U patent/CN201857303U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106215631A (en) * | 2016-08-15 | 2016-12-14 | 航天长征化学工程股份有限公司 | System and method for treating methanol in pulverized coal gasification vented carbon dioxide |
| CN106268191A (en) * | 2016-09-13 | 2017-01-04 | 中国天辰工程有限公司 | A kind of low-temperature methanol washing tail-gas water washing device and process thereof |
| CN106268191B (en) * | 2016-09-13 | 2019-06-25 | 中国天辰工程有限公司 | A kind of low-temperature methanol washing tail-gas water washing device and its process |
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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: 20110608 Termination date: 20151030 |
|
| EXPY | Termination of patent right or utility model |