CN101625128A - Air preheater and production process suitable for same - Google Patents
Air preheater and production process suitable for same Download PDFInfo
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- CN101625128A CN101625128A CN200910099478A CN200910099478A CN101625128A CN 101625128 A CN101625128 A CN 101625128A CN 200910099478 A CN200910099478 A CN 200910099478A CN 200910099478 A CN200910099478 A CN 200910099478A CN 101625128 A CN101625128 A CN 101625128A
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- air preheater
- carbon black
- heat exchanger
- water
- water inlet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The invention discloses an air preheater comprising an air heater main body. The air heater main body is internally provided with a heat exchanger tube and is provided with a water inlet on the side wall, wherein the water inlet corresponds to the lower part of the heat exchanger tube and is connected with a pulse flushing device. A carbon black production process of the air preheater comprises an air preheater cleaning step comprising the following steps: enabling the pulse flushing device to flash water to the water inlet of the air preheater; enabling carbon black smoke to enter the lower part of the air preheater for pulse flushing; and momentarily atomizing the water entering the air preheater and rapidly increasing the size so that the carbon black smoke in the heat exchanger tube abruptly changes, has a pulse jitter effect and shakes carbon black powder remained on the inner wall of the heat exchanger tube to enter the next link along with the carbon black smoke. Accordingly, the carbon black powder in the carbon black smoke can not generate an attaching layer on the inner wall of the heat exchanger tube to keep the favorable heat-exchanging effect of the heat exchanger tube.
Description
Technical field
The present invention relates to a kind of carbon black and prepare equipment and technology, specifically, the present invention relates to the production technology of a kind of air preheater and suitable this air preheater.
Background technology
Carbon black is that a kind of main component is light, the pine of amorphous carbon and superfine black powder, specific area is very big, scope is from 10-3000m2/g, be organic matter (natural gas, heavy oil, fuel wet goods) under the condition of lack of air through imperfect combustion or decomposes and product (having bigger adhesiveness).The application of carbon black is very extensive, can make black dyes, is used to make Chinese ink, printing ink, paint etc., also is used to cook the reinforcing agent of rubber, at industrial circle important effect is arranged.
Traditionally, in the manufacturing technologies of carbon black flow process, reacting furnace is a nucleus equipment.The carbon black of production different cultivars mainly adopts the reacting furnace of different structure size and controls the different reaction time.Air and fuel burn in reacting furnace, and raw material sprays in the burned flame after atomizing, generate carbon black through high temperature pyrolysis.Carbon black is suspended in and forms flue gas in the combustion gas.Flue gas send air preheater, oil preheater further to lower the temperature behind chilling, can send into bag hose again after the cooling of postorder heat exchanger through the flue gas after the air preheater cooling, and isolated carbon black is delivered to granulation in the comminutor, and is dry in drying machine then; After precision processing, enter the finished product packing system again.This shows that in the reacting furnace system of production of carbon black, preheater has important effect.Air preheater not only makes the carbon black smoke cooling, simultaneously, in actual production, the air that will enter reacting furnace is the outer tube wall by air preheater in advance, by preheater the air that passes through is carried out preheating, with the thermal efficiency of raising reacting furnace, and then increase rate of energy, realize the purpose of energy savings.For the dual purpose that carbon black smoke is lowered the temperature and air is fully heated, existing air preheater adopts tubular structure more.
The shell and tube air preheater has had very big development at present, as a Chinese utility model, Granted publication number " CN2789609Y " name is called " air preheater " and discloses a kind of air preheater, comprise the high temperature section tube sheet, have the high temperature section bobbin carriage of air vent, the low-temperature zone bobbin carriage that has air vent, low-temperature zone tube sheet, connect expansion joint and several heat exchanger tube of high and low temperature bobbin carriage, described high temperature section tube sheet is the double tubesheet structure, and two-layer tube sheet is fixedly connected by being provided with several cylindrical shell pipe nipples to discharge orifice.
In addition, China's utility model, Granted publication number " CN2906526Y " name is called " sealing device of shell and tube air preheater heat exchanger tube end " and also discloses a kind of air preheater, comprise heat exchanger tube, be installed in heat exchanger tube one end tube sheet, place the outer stuffing seal of every heat exchanger tube in this tube sheet outside, described this tube sheet comprises the upper and lower tube sheet that is sleeved on the heat exchanger tube, upper and lower tube sheet is connected by the annular pipe nipple that places all heat exchanger tube peripheries, in the air inlet pipe that also is provided with on the pipe nipple more than one or.
But, because the characteristic of the easy adhesiveness of powder of carbon black and lower thermal conductivity factor and the design feature of aforesaid preheater tube, carbon black adheres at the heat exchanger tube inwall of preheater easily, and after use a period of time, heat exchanger tube will be because of the carbon black adhesion layer, caliber is diminished, the flue gas circulation is not smooth, causes that simultaneously the dirtiness resistance of heat exchanger tube rises, and causes that rate of heat transfer seriously descends, and then influencing the result of use of preheater, the air preheater of said structure all fails to address this problem.
Summary of the invention
The present invention is directed in the existing air preheater, heat exchanger tube adheres to hydrocarbon black powder easily, and to cause flue gas to circulate within it not smooth, dirtiness resistance rises, and then influence the defective of heat exchanger effectiveness and production of carbon black, a kind of air preheater is provided and has adopted the manufacturing technologies of carbon black of this air preheater, this air preheater and its pairing manufacturing technologies of carbon black realize the carbon black smoke cooling and to the preheating of air function that enters reacting furnace in, can be good at solving in existing equipment and the technology, the defective of adhering to hydrocarbon black powder in the heat exchanger tube of air preheater inside easily, and reasonable in design of the present invention is reliable, and heat exchange effect is good; Its pairing technology is simple, is difficult for making the heat exchanger tube of preheater to adhere to silica aerogel layer.
For achieving the above object, the technical solution used in the present invention is:
A kind of air preheater, comprise the air preheater main body, the sidewall of air preheater main body is provided with flue, described flue connects black reactor, described air preheater body interior is equipped with heat exchanger tube, below corresponding to heat exchanger tube on the described air preheater main body wall is provided with water inlet, and water inlet connects the pulsed flushometer.
Further, described pulsed flushometer is constituted by pulse water pump and jet water spout, and described pulse water pump is connected on the described water inlet by described jet water spout.
Further, described pulsed flushometer is constituted by water pump, impulse electromagnetic valve and jet water spout, and described impulse electromagnetic valve is communicated with water pump and jet water spout, and the other end of described jet water spout is connected with described water inlet.
Further, the outer surface of described jet water spout is surrounded with cooling device.
Further, described cooling device is surrounded with cooling water inlet pipe for the outer surface at described jet water spout, one end of cooling water inlet pipe is provided with cooling water intake, the described cooling water inlet pipe other end connects cooling water outlet pipe, and described cooling water outlet pipe end is provided with cooling water outlet.
Further, the bath frequency of described pulsed flushometer is: sprayed water once in every interval in 5～30 minutes, and each water spraying time is 1～5 second.
Adopt the manufacturing technologies of carbon black of described air preheater, may further comprise the steps:
1) air and fuel burn in reacting furnace, and raw material sprays in the burned flame after atomizing, generate carbon black through high temperature pyrolysis;
2) flue gas that will contain carbon black is sent into air preheater behind chilling, is further lowered the temperature by preheater;
3) can send into bag hose again after the cooling of postorder heat exchanger through the flue gas after the air preheater cooling, isolated carbon black is delivered to granulation in the comminutor, and is dry in drying machine then; After precision processing, enter the finished product packing system again;
Described production technology also comprises the cleaning of preheater, and described cleaning is for adopting the water inlet pulsed water inlet of pulsed water feed apparatus to described preheater.
Beneficial effect: the present invention compared with prior art has following beneficial effect:
1) the present invention carries out the pulsed water filling below heat exchanger tube, water is atomized in moment after entering heat exchanger tube, volume increases rapidly, the effect that a pulse jitter is arranged, the carbon black that can will remain on the heat exchanger tube inwall shakes, enter next link with carbon black smoke, this air preheater and its pairing manufacturing technologies of carbon black in the cooling that realizes carbon black smoke with to the preheating of air function that enters reacting furnace in, can be good at solving in existing equipment and the technology, adhere to the defective of hydrocarbon black powder in the heat exchanger tube of air preheater inside easily.
2) reasonable in design of the present invention is reliable, and heat exchange effect is good; Its pairing technology is simple, is difficult for making the heat exchanger tube of preheater to adhere to silica aerogel layer.。
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is an I place enlarged drawing among Fig. 1
Fig. 3 be among Fig. 2 A-A to cutaway view
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described in further detail:
See Fig. 1～Fig. 3, a kind of air preheater, comprise air preheater main body 1, the sidewall of air preheater main body 1 is provided with flue 11, described flue 11 connects the black reactor (not shown), described air preheater main body 1 inside is equipped with heat exchanger tube 3, and the below corresponding to heat exchanger tube 3 on described air preheater main body 1 sidewall is provided with water inlet 10, and water inlet 10 connects the pulsed flushometer.The bath frequency of described pulsed flushometer is: sprayed water once in every interval in 5～30 minutes, and each water spraying time is 1～5 second, and the frequency of washing by water certainly can be made suitable adjustment according to the heat exchange effect.
Preferably, described pulsed flushometer is constituted by pulse water pump and jet water spout 5, and described pulse water pump is connected in (the pulse water pump is not shown) on the described water inlet 10 by described jet water spout.
Preferably, described pulsed flushometer is constituted by water pump, impulse electromagnetic valve 9 and jet water spout 5, and described impulse electromagnetic valve 9 is communicated with water pump and jet water spout 5, and the other end of described jet water spout 5 is connected with described water inlet 10.
The outer surface of described jet water spout 5 is surrounded with cooling device 7, described cooling device 7 is surrounded with cooling water inlet pipe 72 for the outer surface at described jet water spout 5, one end of cooling water inlet pipe 72 is provided with cooling water intake 70, described cooling water inlet pipe 72 other ends connect cooling water outlet pipe 74, described cooling water outlet pipe 74 ends are provided with cooling water outlet 70, because the end of jet water spout 5 is subjected to 700 ℃～1000 ℃ always, when not washing by water, jet water spout 5 self-temperatures are very high, so, jet water spout 5 itself must adopt resistant to elevated temperatures material, the manufacturing cost height is surrounded with cooling water inlet pipe 72 at jet water spout 5 outer surfaces, and jet water spout 5 temperature are reduced, thereby can use the comparatively cheap material of price to make jet water spout 5, the manufacturing cost of jet water spout 5 is reduced.
Adopt the manufacturing technologies of carbon black of described air preheater, may further comprise the steps:
1) air and fuel burn in reacting furnace, and raw material sprays in the burned flame after atomizing, generate carbon black through high temperature pyrolysis;
2) flue gas that will contain carbon black is sent into air preheater behind chilling, is further lowered the temperature by preheater;
3) can send into bag hose again after the cooling of postorder heat exchanger through the flue gas after the air preheater cooling, isolated carbon black is delivered to granulation in the comminutor, and is dry in drying machine then; After precision processing, enter the finished product packing system again;
Described production technology also comprises the cleaning of preheater, and described cleaning is for adopting the water inlet pulsed water inlet of pulsed water feed apparatus to described preheater.
Carbon black smoke enter air preheater below carry out the pulsed water filling, since the carbon black smoke self-temperature that enters heat exchanger reach 700 ℃～more than 1000 ℃, after water enters, water is atomized in moment after entering air preheater, volume increases rapidly, makes the interior carbon black smoke of heat exchanger tube change suddenly, and the effect of a pulse jitter is arranged, the hydrocarbon black powder that can will remain on the heat exchanger tube inwall shakes, and enters next link with carbon black smoke.Thereby make the hydrocarbon black powder in the carbon black smoke not produce adhesion layer, keep the good heat exchange effect of heat exchanger tube at the heat exchanger tube inwall.
Claims (7)
1, a kind of air preheater, it is characterized in that, comprise air preheater main body (1), the sidewall of air preheater main body (1) is provided with flue (11), described flue (11) connects black reactor, and described air preheater main body (1) inside is equipped with heat exchanger tube (3), it is characterized in that, below corresponding to heat exchanger tube (3) on described air preheater main body (1) sidewall is provided with water inlet (10), and water inlet (10) connects the pulsed flushometer.
2, air preheater as claimed in claim 1 is characterized in that, described pulsed flushometer is constituted by pulse water pump and jet water spout (5), and described pulse water pump is connected on the described water inlet (10) by described jet water spout (5).
3, air preheater as claimed in claim 1, it is characterized in that, described pulsed flushometer is constituted by water pump, impulse electromagnetic valve (9) and jet water spout (5), described impulse electromagnetic valve (9) is communicated with water pump and jet water spout (5), and the other end of described jet water spout (5) is connected with described water inlet (10).
As claim 2 or 3 described air preheaters, it is characterized in that 4, the outer surface of described jet water spout (5) is surrounded with cooling device (7)
5, air preheater as claimed in claim 4, it is characterized in that, described cooling device (7) is surrounded with cooling water inlet pipe (72) for the outer surface at described jet water spout (5), one end of cooling water inlet pipe (72) is provided with cooling water intake (70), described cooling water inlet pipe (72) other end connects cooling water outlet pipe (74), and described cooling water outlet pipe (74) end is provided with cooling water outlet (70 ').
As claim 1 or 2 or 3 described air preheaters, it is characterized in that 6, the bath frequency of described pulsed flushometer is: sprayed water once in every interval in 5～30 minutes, and each water spraying time is 1～5 second.
7, adopt the manufacturing technologies of carbon black of described air preheater, may further comprise the steps:
1) air and fuel burn in reacting furnace, and raw material sprays in the burned flame after atomizing, generate carbon black through high temperature pyrolysis;
2) flue gas that will contain carbon black is sent into air preheater behind chilling, is further lowered the temperature by preheater;
3) can send into bag hose again after the cooling of postorder heat exchanger through the flue gas after the air preheater cooling, isolated carbon black is delivered to granulation in the comminutor, and is dry in drying machine then; After precision processing, enter the finished product packing system again;
It is characterized in that:
Described production technology also comprises the cleaning of preheater, and described cleaning is for adopting the water inlet pulsed water inlet of pulsed water feed apparatus to described preheater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100994783A CN101625128B (en) | 2009-06-09 | 2009-06-09 | Air preheater and production process suitable for same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100994783A CN101625128B (en) | 2009-06-09 | 2009-06-09 | Air preheater and production process suitable for same |
Publications (2)
| Publication Number | Publication Date |
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| CN101625128A true CN101625128A (en) | 2010-01-13 |
| CN101625128B CN101625128B (en) | 2011-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100994783A Expired - Fee Related CN101625128B (en) | 2009-06-09 | 2009-06-09 | Air preheater and production process suitable for same |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103506319A (en) * | 2013-09-29 | 2014-01-15 | 宁波德泰化学有限公司 | Device and method for producing active carbon black |
| CN103506320A (en) * | 2013-09-29 | 2014-01-15 | 宁波德泰化学有限公司 | Carbon black preparation device and method |
| CN103506318A (en) * | 2013-09-29 | 2014-01-15 | 宁波德泰化学有限公司 | Carbon black and preparation device |
| CN104130599A (en) * | 2014-08-06 | 2014-11-05 | 新疆鑫凯高色素特种炭黑有限公司 | High-pigment carbon black furnace-process production device |
| CN104629497A (en) * | 2015-02-05 | 2015-05-20 | 宁波德泰化学有限公司 | Environment-friendly process for preparing carbon black by utilizing tar |
| CN111777877A (en) * | 2020-06-19 | 2020-10-16 | 茂名环星新材料股份有限公司 | Low-loss air preheater heat exchange method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE537215C2 (en) | 2012-02-13 | 2015-03-03 | Aktiebolaget Ka Ekstroems & Son | Heat exchanger adapted for the production of carbon black |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB607296A (en) * | 1943-12-03 | 1948-08-27 | Phillips Petroleum Co | Improvements in or relating to the manufacture of carbon black |
| CN1014150B (en) * | 1986-07-03 | 1991-10-02 | 化学工业部炭黑工业研究设计所 | Method and apparatus for carbon black prodn. |
| CN2055822U (en) * | 1989-09-26 | 1990-04-11 | 河南省平顶山市焦化厂 | Plate air preheater with water cooled tube |
| BRPI0408333A (en) * | 2003-03-13 | 2006-03-21 | Columbian Chem | innovative carbon blacks, methods and tools for preparing and using this |
| CN201412864Y (en) * | 2009-06-09 | 2010-02-24 | 宁波德泰化学有限公司 | Air preheater |
-
2009
- 2009-06-09 CN CN2009100994783A patent/CN101625128B/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103506319A (en) * | 2013-09-29 | 2014-01-15 | 宁波德泰化学有限公司 | Device and method for producing active carbon black |
| CN103506320A (en) * | 2013-09-29 | 2014-01-15 | 宁波德泰化学有限公司 | Carbon black preparation device and method |
| CN103506318A (en) * | 2013-09-29 | 2014-01-15 | 宁波德泰化学有限公司 | Carbon black and preparation device |
| CN103506319B (en) * | 2013-09-29 | 2015-10-07 | 宁波德泰化学有限公司 | A kind of preparation facilities of activated carbon black and preparation method |
| CN103506320B (en) * | 2013-09-29 | 2015-10-07 | 宁波德泰化学有限公司 | A kind of preparation facilities of carbon black and preparation method |
| CN103506318B (en) * | 2013-09-29 | 2015-10-07 | 宁波德泰化学有限公司 | A kind of carbon black and preparation facilities |
| CN104130599A (en) * | 2014-08-06 | 2014-11-05 | 新疆鑫凯高色素特种炭黑有限公司 | High-pigment carbon black furnace-process production device |
| CN104130599B (en) * | 2014-08-06 | 2016-06-01 | 新疆鑫凯高色素特种炭黑有限公司 | A kind of high-carbon black pigment stove method production equipment |
| CN104629497A (en) * | 2015-02-05 | 2015-05-20 | 宁波德泰化学有限公司 | Environment-friendly process for preparing carbon black by utilizing tar |
| CN104629497B (en) * | 2015-02-05 | 2017-04-26 | 宁波德泰化学有限公司 | Environment-friendly process for preparing carbon black by utilizing tar |
| CN111777877A (en) * | 2020-06-19 | 2020-10-16 | 茂名环星新材料股份有限公司 | Low-loss air preheater heat exchange method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101625128B (en) | 2011-04-27 |
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Granted publication date: 20110427 Termination date: 20200609 |