CN103706151B - Method and device for analyzing amount of sludge and removing contaminants in high-temperature and high-turbidity water system flow trough - Google Patents
Method and device for analyzing amount of sludge and removing contaminants in high-temperature and high-turbidity water system flow trough Download PDFInfo
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- CN103706151B CN103706151B CN201310705904.XA CN201310705904A CN103706151B CN 103706151 B CN103706151 B CN 103706151B CN 201310705904 A CN201310705904 A CN 201310705904A CN 103706151 B CN103706151 B CN 103706151B
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Abstract
The invention relates to a method and a device for analyzing the amount of sludge and removing contaminants in a high-temperature and high-turbidity water system flow trough, and solves the problems of blocking of an existing flow trough and difficulty in sludge removal. The device comprises a flow trough, wherein a conical hopper is arranged at the bottom of the flow trough; the bottom of the conical hopper is connected with a sludge discharging pipe with a sludge discharging valve through a downcomer; four electronic temperature meters are uniformly arranged on the side wall of the conical hopper from bottom to top. According to the method, the aim of automatically discharging the sludge is achieved by analyzing and comparing data measured through the electronic temperature meters at different vertical positions of the conical hopper, and analyzing the amount of the sludge. The method is simple and reliable, the contaminant removal effect is good, the amount of the sludge can be measured quantitatively, and the manual operation can be completely replaced. The device has time-saving, and labor-saving effects, is safe, reliable, long in service life, and capable of removing the contaminants without shutdown.
Description
Technical field
The present invention relates to a kind of mud component analysis of sewage and descaling method and device, specifically mud component analysis and descaling method and device in a kind of high temperature height muddy water system chute.
Background technology
Metallurgy industry is in steel manufacture process, and the flue gas because of blast furnace or converter furnace roof can become purified gas by water washing and be recycled.For the object of environmental emission reduction, fume washing water is carried out purified treatment recirculation and uses by present most of smelter.In the process; because amount of heat when water and smoke contacts and solid impurity enter water body; the trade effluent temperature of discharging after making flue gas washing is higher; the concentration of suspension, scale-forming ion is also all very high; the high turbid sewage of this type high temp usually can cause pipeline, spray nozzle clogging in the process recycled; smelting process continuous water supply can not be guaranteed, cause production normally to run.German BertholdKr ü ger in 1976, Wanne Eickel proposes a set of alkali carbonate, heavy carbonate or hydroxide of adding in the converter smoke-gas washing circulatory system to reduce the process patent (patent No. is for US3988422A) of water hardness, but the problem of pipeline scale is not well solved all the time for many years.Along with the development of water treatment engineering technology, for the ease of clearing up the scale problems of the medium-term and long-term existence of this type high temp height muddy water treatment system, when designing this type of water treatment technology, constructing, the mode that generally have employed overhead chute replaces Cemented filling sewage.Overhead chute is made up of the straight carbon steel steel plate thickening, and its structure has very strong weight capacity.In sewage disposal system, its advantage is used to be: when the scale-forming ion in waste water because flow velocity is slack-off, precipitate in chute, fouling time, field personnel can be following to chute when water treatment system full cut-off, utilize the feature of overhead chute top Full-open, use blademan's tool to implement cleaning.
The mode of operation of this labor cleaning's chute described above has general character in metallurgy industry.But overhead chute still exists following 3 deficiencies: 1, in chute, the mud of precipitation does not carry out the quantitative analysis of science, brings great blindness and randomness thus to the work of labor cleaning's chute; 2, in chute, the mud of precipitation has certain toxicity, can bring great harm to the health of cleaning personnel; 3, there is a large amount of scale-forming ions in the mud precipitated in chute, thus bring great inconvenience to labor cleaning, and working site automaticity is very low, cleaning work relies on the pure handwork of workman completely, adds the labour intensity of on-the-spot cleaning workman, makes cost of labor very high.
For this reason, urgently need the method taking some science, in convective tank, sedimentary amount carries out quantitative analysis, and based on this, invent a set of easy device to clear up these dirty stifled things, while saving cost of labor, guarantee that the long-term of iron and steel production process is run continuously further.
Summary of the invention
The object of the invention is to solve the problems of the technologies described above, provide a kind of method simple, reliable, quantitative analysis, features high scale-removing effect can be carried out to mud amount, manual operation can be substituted completely, time saving and energy saving, safe and reliable, without the need to mud component analysis and descaling method in the high temperature height muddy water system chute of scale removal of stopping.
The present invention also provides a kind of device for said method, have structure simple, easy and simple to handle, time saving and energy saving, safe and reliable, can realize full-automatic mud component analysis and spoil disposal operation.
The bottom that apparatus of the present invention comprise described chute is provided with cone bucket, and the bottom of described cone bucket is connected with the discharge pipeline being provided with mud valve through down-comer, and the sidewall of described cone bucket has been evenly arranged 4 electronic thermometers from the bottom to top.
Be as the criterion with the vertical height h boring bucket, the position of described 4 electronic thermometers on cone bucket sidewall from the bottom to top, is respectively 1/4h height, 1/2h height, 3/4h height and h height.
The angle of described cone bucket skew wall and chute bottom surface is 50-60 degree.
Described electronic thermometer is all connected with PLC, and described PLC controls mud valve.
Described chute is also provided with electronic thermometer.
The inventive method is:
Read the temperature value of four differing heights on cone bucket sidewall by the electronic thermometer that cone bucket sidewall is arranged respectively, be respectively T from the bottom to top
1/4h, T
1/2h, T3
/ 4hand T
h,
According to time the temperature value of surveying between compare to determine the mud amount flowing through deposition in cone bucket, its determination methods is:
T
1/2h-T
1/4h< 10 DEG C, is judged to be that mud amount is little;
T
1/2h-T
1/4h=10-20 DEG C, is judged to be that mud amount is moderate;
T
1/2h-T
1/4h=20-30 DEG C, is judged to be that mud amount is many;
T
1/2h-T
1/4h> 30 DEG C, is judged to be that mud amount is a lot;
T
3/4h-T
1/2h=10-20 DEG C, is judged to be that mud amount is moderate;
T
3/4h-T
1/2h=20-30 DEG C, is judged to be that mud amount is many;
T
3/4h-T
1/2h> 30 DEG C, is judged to be that mud amount is a lot;
T
h-T
3/4h< 20-30 DEG C, is judged to be that mud amount is many;
T
h-T
3/4h>=20 DEG C, be judged to be that mud amount is a lot;
Wherein high vertical height is bored in T representation temperature value, h representative;
When result of determination is when mud amount is moderate, mud amount is many or mud amount is a lot, then opens mud valve and carry out spoil disposal.When contradiction appears in result of determination, to judge that the more result of mud amount is as the criterion, carry out spoil disposal operation.
In spoil disposal process, when meeting T
1/4h=T
hor T
1/2h-T
1/4hduring the requirement that < is 10 DEG C, then stop spoil disposal.The temperature signal recorded is passed to PLC by the described electronic thermometer that bucket sidewall is arranged of boring, and PLC compares according to the decision method of described mud amount and analyzes and judge, and sends control signal control mud valve unlatching according to result of determination or close.
The present invention is applicable to temperature higher than the high turbid sewage of high temperature of more than 60 DEG C, as washings, chilled water etc. for metallurgical or chemical industry.
The present invention, by arranging a cone bucket at its bottom, for accepting mud, not making mud directly pile up at its bottom and causing chute to block.Inventor conducts in-depth analysis to the situation of sediment pile in cone bucket simultaneously, based on the thermal conductivity >> fouling sediment (non-metal solid of the thermal conductivity >> steel plate (metal) of liquid (sewage), as mud) the understanding of thermal conductivity, find after in cone bucket, mud is piled up, the wall temperature of cone bucket bottom can be low compared with the wall temperature on its top, this is because after mud is piled up in cone bucket, be transfixion and away from the sewage of flowing near the mud of bottom, affect minimum by the heat conduction of high temperature sewage, and self heat can be bored headwall by metal and conducted, therefore in cone bucket, mud is piled up thicker, temperature bottom it declines the fastest, also be minimum, and the mud mixture of the end face that struggles against near cone, owing to constantly contacting the sewage flowed in chute, thus its temperature declines slower, also closest to sewage water temperature.Therefore, by arranging multiple point for measuring temperature, the temperature difference of more adjacent point for measuring temperature at the differing heights of cone bucket outer wall, can analyze the accumulation situation obtaining mud, sinking in namely struggling against to cone quantitatively does a general assessment.Thus also based on this assessment, the mud (dirty stifled thing) of deposition in cone bucket can be discharged.By arranging down-comer in cone bucket bottom surface, thus the mud in cone bucket can being introduced in discharge pipeline, by opening mud valve, the mud in cone bucket can be discharged.Electronic thermometer is adopted by point for measuring temperature, this signal can be sent to PLC, this determination methods is compiled and seizes into corresponding software, PLC is judged automatically to the temperature value recorded, and the opening and closing of corresponding control mud valve, realize online full-automation analysis and spoil disposal process, thus substitute manual operation in the past completely, safe and reliable, also without the need to desilting of stopping, ensure the continuity of producing.
Further, the angle of cone bucket skew wall and chute bottom surface is preferably 50-60 degree, this preferred value analyzes suspended solid (MLSS) and the rate of settling (Vd) is determined, in sewage, suspended solid (MLSS) is more, the rate of settling (Vd) is faster, then the number of degrees of described angle are less, otherwise then larger.
The inventive method is simple, easy and simple to handle, safe and reliable, can, mud amount in automatic analysis cone bucket also carries out spoil disposal operation, whole process is without the need to manual operation, time saving and energy saving, thoroughly solves the problem of chute blocking, the service life that practicality is high, improve chute, be specially adapted to the high turbid sewage of high temperature, the sewage that the temperature produced as iron steel industry or chemical industry is greater than more than 60 DEG C, as washings, chilled water etc. for iron and steel or chemical industry.Apparatus of the present invention structure is very simple, it is easy to transform, and can install multiple cone bucket carry out collection deposit according to the length of chute, equipment and operating cost is low, reliability is high, long service life, has wide market application foreground.
Accompanying drawing explanation
Fig. 1 is apparatus of the present invention perspective view.
Fig. 2 is cone bucket schematic diagram.
Fig. 3 is PLC control principle drawing.
Wherein, 1. chute, 2. cone bucket, 3. electronic thermometer, 4. electronic thermometer, 5. electronic thermometer, 6. electronic thermometer, 7. electronic thermometer, 8. down-comer, 9. mud valve, 10. slush pump, 11-discharge pipeline, 12-PLC.
Detailed description of the invention
Below in conjunction with accompanying drawing, explanation is further explained to invention:
The concrete structure of apparatus of the present invention is shown in Fig. 1 and Fig. 2, and the bottom of described chute 1 is provided with cone bucket 2, and the angle a of described cone bucket 2 skew wall and chute bottom surface is 50-60 degree.The bottom of described cone bucket 2 is connected with the discharge pipeline 11 being provided with mud valve 9 and dredge pump pump 10 through down-comer 8, the sidewall of described cone bucket 2 is evenly arranged from the bottom to top 4 electronic thermometers, be as the criterion with the vertical height h boring bucket 2, the position of described 4 electronic thermometers on cone bucket sidewall from the bottom to top, be respectively the electronic thermometer 3 of 1/4h height, the electronic thermometer 4 of 1/2h height, the electronic thermometer 5 of 3/4h height and the electronic thermometer 6 of h height, on chute, be also provided with electronic thermometer 7 simultaneously, so that the adverse effect that timely grasp produces because of mud amount a lot of possibility convective tank architecture in cone bucket.Described electronic thermometer 3,4,5,6 is all connected with PLC12, and described PLC12 controls the operation of mud valve 9 and dredge pump slurry 10.
The course of work:
With BF Gas Washing water, (MLSS is for 5000-7500mg/L, Vd is 3.5-4.5cm/s, water temperature is > 60 DEG C) be example, when BF Gas Washing water continues through chute, electronic thermometer 3,4,5,6 sends the temperature signal of detection to PLC12, during PLC12, reality changes above-mentioned signal, analyze and judges
Concrete grammar is:
T
1/2h-T
1/4h< 10 DEG C, is judged to be that mud amount is little;
T
1/2h-T
1/4h=10-20 DEG C, is judged to be that mud amount is moderate;
T
1/2h-T
1/4h=20-30 DEG C, is judged to be that mud amount is many;
T
1/2h-T
1/4h> 30 DEG C, is judged to be that mud amount is a lot;
T
3/4h-T
1/2h=10-20 DEG C, is judged to be that mud amount is moderate;
T
3/4h-T
1/2h=20-30 DEG C, is judged to be that mud amount is many;
T
3/4h-T
1/2h> 30 DEG C, is judged to be that mud amount is a lot;
T
h-T
3/4h< 20-30 DEG C, is judged to be that mud amount is many;
T
h-T
3/4h>=20 DEG C, be judged to be that mud amount is a lot;
Wherein high vertical height is bored in T representation temperature value, h representative;
When contradiction appears in multiple result of determination, to judge that the more result of mud amount is as the criterion.
It's the water initial stage past apparatus of the present invention, when electronic thermometer 3 temperature-measuring results at 1/4h place is consistent with temperature of washing water, represent the mud amount almost do not deposited in cone bucket 2, it is that mud amount is little that PLC12 obtains result of determination through above-mentioned decision method, then do not send the signal of control unlatching to mud valve 9 and slush pump 10; Along with the continuous propelling of spending the water time, the continuous deposition of mud amount, PLC12 according to the up-to-date temperature signal delivered to according to above-mentioned decision method, judge mud volume moderate, mud amount is many or mud amount a lot of in certain result, now PLC12 then sends control signal and makes it unlatching spoil disposal to mud valve 9 and slush pump 10, mud in cone bucket 2 enters discharge pipeline 11 by down-comer 8, then discharges through slush pump 11; The temperature detected as PLC meets T
1/4h=T
hor T
1/2h-T
1/4hduring the requirement that < is 10 DEG C, illustrate that in cone bucket 2, mud amount is little, has completed spoil disposal work, then PLC12 sends control signal and stops spoil disposal to mud valve 9 and slush pump 10.On described cone bucket 2 sidewall temperature detection can time real to carry out, also regularly can carry out, specifically can arrange as required.
Claims (7)
1. a high temperature height muddy water system chute apparatus for eliminating sludge, comprise chute, it is characterized in that, the bottom of described chute is provided with cone bucket, the bottom of described cone bucket is connected with the discharge pipeline being provided with mud valve through down-comer, the sidewall of described cone bucket has been evenly arranged 4 electronic thermometers from the bottom to top, and the angle of described cone bucket skew wall and chute bottom surface is 50-60 degree.
2. high temperature height muddy water system chute apparatus for eliminating sludge as claimed in claim 1, it is characterized in that, be as the criterion with the vertical height h boring bucket, the position of described 4 electronic thermometers on cone bucket sidewall from the bottom to top, is respectively 1/4h height, 1/2h height, 3/4h height and h height.
3. high temperature height muddy water system chute apparatus for eliminating sludge as claimed in claim 1 or 2, it is characterized in that, described electronic thermometer is all connected with PLC, and described PLC controls mud valve.
4. high temperature height muddy water system chute apparatus for eliminating sludge as claimed in claim 1, is characterized in that, described chute is also provided with electronic thermometer.
5. mud component analysis and a descaling method in high temperature height muddy water system chute, is characterized in that, use the device described in any one of claim 1-4, its method is:
Read the temperature value of four differing heights on cone bucket sidewall by the electronic thermometer that cone bucket sidewall is arranged respectively, be respectively T from the bottom to top
1/4h, T
1/2h, T3
/ 4hand T
h,
According to time the temperature value of surveying between compare to determine the mud amount flowing through deposition in cone bucket, its determination methods is:
T
1/2h-T
1/4h< 10 DEG C, is judged to be that mud amount is little;
T
1/2h-T
1/4h=10-20 DEG C, is judged to be that mud amount is moderate;
T
1/2h-T
1/4h=20-30 DEG C, is judged to be that mud amount is many;
T
1/2h-T
1/4h> 30 DEG C, is judged to be that mud amount is a lot;
T
3/4h-T
1/2h=10-20 DEG C, is judged to be that mud amount is moderate;
T
3/4h-T
1/2h=20-30 DEG C, is judged to be that mud amount is many;
T
3/4h-T
1/2h> 30 DEG C, is judged to be that mud amount is a lot;
T
h-T
3/4h< 20-30 DEG C, is judged to be that mud amount is many;
T
h-T
3/4h>=20 DEG C, be judged to be that mud amount is a lot;
Wherein high vertical height is bored in T representation temperature value, h representative;
When result of determination is when mud amount is moderate, mud amount is many or mud amount is a lot, then open mud valve and carry out spoil disposal.
6. mud component analysis and descaling method in high temperature height muddy water system chute as claimed in claim 5, is characterized in that, in spoil disposal process, when meeting T
1/4h=T
hor T
1/2h-T
1/4hduring the requirement that < is 10 DEG C, then stop spoil disposal.
7. mud component analysis and descaling method in the high temperature height muddy water system chute as described in claim 5 or 6, it is characterized in that, the temperature signal recorded is passed to PLC by the electronic thermometer that described cone bucket sidewall is arranged, PLC compares according to the decision method of described mud amount and analyzes and judge, and sends control signal control mud valve unlatching according to result of determination or close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310705904.XA CN103706151B (en) | 2013-12-19 | 2013-12-19 | Method and device for analyzing amount of sludge and removing contaminants in high-temperature and high-turbidity water system flow trough |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310705904.XA CN103706151B (en) | 2013-12-19 | 2013-12-19 | Method and device for analyzing amount of sludge and removing contaminants in high-temperature and high-turbidity water system flow trough |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103706151A CN103706151A (en) | 2014-04-09 |
| CN103706151B true CN103706151B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310705904.XA Expired - Fee Related CN103706151B (en) | 2013-12-19 | 2013-12-19 | Method and device for analyzing amount of sludge and removing contaminants in high-temperature and high-turbidity water system flow trough |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103706151B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0439362B2 (en) * | 1989-12-04 | 1992-06-29 | ||
| US6406617B1 (en) * | 1999-10-08 | 2002-06-18 | Cyklar Ag | Scum extraction |
| CN101693153A (en) * | 2009-10-29 | 2010-04-14 | 中冶建筑研究总院有限公司 | Device and method for automatically discharging sludge |
-
2013
- 2013-12-19 CN CN201310705904.XA patent/CN103706151B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0439362B2 (en) * | 1989-12-04 | 1992-06-29 | ||
| US6406617B1 (en) * | 1999-10-08 | 2002-06-18 | Cyklar Ag | Scum extraction |
| CN101693153A (en) * | 2009-10-29 | 2010-04-14 | 中冶建筑研究总院有限公司 | Device and method for automatically discharging sludge |
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| Publication number | Publication date |
|---|---|
| CN103706151A (en) | 2014-04-09 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170720 Address after: 430083, Hubei Wuhan Qingshan District Factory No. 2 Gate joint stock company organs Patentee after: Wuhan iron and Steel Company Limited Address before: 430080 Wuchang, Hubei Friendship Road, No. A, block, floor 999, 15 Patentee before: Wuhan Iron & Steel (Group) Corp. |
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Granted publication date: 20150610 Termination date: 20191219 |
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