CN1263530C - Unitary immersed burning evaporator of concentrated percolate - Google Patents
Unitary immersed burning evaporator of concentrated percolate Download PDFInfo
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- CN1263530C CN1263530C CN 200410042792 CN200410042792A CN1263530C CN 1263530 C CN1263530 C CN 1263530C CN 200410042792 CN200410042792 CN 200410042792 CN 200410042792 A CN200410042792 A CN 200410042792A CN 1263530 C CN1263530 C CN 1263530C
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Abstract
The present invention relates to a unitary immersion and combustion evaporator of concentration percolate, which belongs to the technical field of an environmental protection apparatus. In order to effectively solve the problem of the secondary pollution of landfill sites and realize the comprehensive treatment of the percolate and landfill gas, the present invention provides the unitary immersion combustion evaporator of concentration percolate by using the landfill gas. The present invention comprises a combustion chamber and an evaporation chamber; refractory materials are lined to the inner part of the combustion chamber; an exhaust tube is arranged on the side wall at the upper part of the evaporation chamber; a liquid inlet tube for inputting the percolate is arranged at the middle; a liquid outlet tube for exchanging concentration liquid is arranged at the bottom; the combustion chamber and the evaporation chamber are combined into a whole. The lower part of the combustion chamber is immersed in the liquid of the evaporation chamber; a gas distribution cofferdam is arranged at the bottom of the combustion chamber; a porous gas distribution board is arranged in the liquid of the evaporation chamber and is positioned in the upper part of the gas distribution cofferdam. In the present invention, the combustion chamber and the evaporation chamber are tightly combined into the whole, which saves space; the high-temperature gas is contacted directly with liqid, which enhances the heat-transfer efficiency greatly.
Description
Technical field
The invention belongs to the environmental protecting device technical field, relate in particular to a kind of integral type evaporator with submerged combustion of concentrated leachate.
Background technology
The processing of high concentrated organic wastewater is the difficult problem that efforts at environmental protection person faced all the time, especially with percolate from garbage filling field for very.It is an important step of solid waste management that landfill is disposed, for a complete solid waste management system, and the landfill key element that is absolutely necessary.At present, the pollution of landfill yard control is still weak link, and percolate and landfill gas pollutant, particularly percolate pollutant levels height, output that the rubbish of wherein dissolving derives high pollution again are big.The leachate quality excursion is very big, not only annual more folded with the four seasons, the variation that alternately presents regularity in dry season, rainy season, and also show regular variation with landfill yard service time, maturity, and existing garbage leachate treatment process all exists complex process, the holdup time is long, processing cost is high, the water quality after handling still has end item to be difficult to problems such as up to standard, can form pollution threat to surface water and underground water.
Rubbish can produce a large amount of landfill gas behind landfill.Studies show that in recent years, landfill yard are that the source takes place the third-largest methane gas that is only second to wetland and rice field, and the greenhouse effects of Board Lot methane compare CO
2Strong 21 times.CH
4Be a kind of resource, can be recycled,, also have the potential safety hazard of burning, blast as effectively not controlled and utilizing.Also contain very harmful to human body on a small quantity gas in the landfill gas, as H
2S etc.If deal with improperly, then form serious secondary pollution, the water environment and the atmospheric environment of locality constituted a threat to, and then threaten human health and life security.Therefore, strengthen the control and the recycling work of landfill gas, offset except that environmental pollution and potential safety hazard, improve the resource degree that garbage loading embeading is handled, all have crucial meaning.With regard to present technology, percolate does not reach rational the cooperation with the processing of landfill gas, and processing cost is still higher.
Summary of the invention
The objective of the invention is to realize the comprehensive regulation of percolate and landfill gas, the integral type of utilizing landfill gas concentrated leachate evaporator with submerged combustion is provided in order effectively to solve the secondary pollution problem of refuse landfill.
Technical scheme of the present invention is: the integral type evaporator with submerged combustion of concentrated leachate, comprise the combustion chamber that supplies landfill gas and combustion air to burn within it, and the vaporization chamber of evaporation percolate, inside, described combustion chamber is lined with refractory material, the sidewall on described vaporization chamber top is provided with blast pipe, the middle part is provided with the feed tube of input percolate, the bottom is provided with the drain pipe of discharging concentrate, it is characterized in that: described combustion chamber and vaporization chamber are become one, bottom, described combustion chamber is immersed in the liquid of vaporization chamber, the bottom, combustion chamber is provided with the distribution of gas weir, and described integral type evaporator with submerged combustion also comprises the porous air distribution plate that is positioned at top, described distribution of gas weir that is arranged in the vaporization chamber liquid.
The submergence on distribution of gas of the present invention weir is 0.6-0.8m.
Porous air distribution plate of the present invention is positioned under the liquid level 0.2m at least.
Integral type evaporator with submerged combustion of the present invention is made by stainless steel.
A kind of being improved to of the present invention: described porous air distribution plate is at least 2, and each porous air distribution plate be arranged in parallel at vaporization chamber liquid intermediate reach, and the porous air distribution plate of the superiors is positioned under the liquid level 0.2m at least.
Described landfill gas combustion chamber and percolate vaporization chamber are combined closely, and have saved the space, and high-temperature fuel gas directly contacts with liquid, have greatly improved heat transfer efficiency.This device has been realized separating of volatile ingredient and difficult volatile ingredient in the percolate.
Beneficial effect of the present invention: 1. the present invention utilizes the energy evaporation and concentration percolate of landfill gas burning, has realized the integrated treatment of percolate from garbage filling field and landfill gas.2. this integral type evaporator with submerged combustion has been realized separating of volatile ingredient and difficult volatile ingredient in the percolate, for the subsequent treatment of percolate is laid a good foundation.3. the distribution of gas weir of this integral type evaporator with submerged combustion and porous air distribution plate make high-temperature fuel gas be split into numerous minute bubbles, and it is long-pending greatly to have increased between combustion gas and the percolate direct contact surface, has improved heat transfer efficiency.4. this integral type evaporator with submerged combustion needs the space very little, can outdoor mounted, and human input is few, and is easy to operate, reliable.In the integrated treatment of percolate and landfill gas, come the evaporation and concentration percolate if adopt submerged combustion technology to burn landfill gas, will reduce equipment investment and operating cost widely, more suitable for middle-size and small-size landfill yard.
Description of drawings
Fig. 1 is the structural representation of first embodiment of the invention.
Fig. 2 is the structural representation of second embodiment of the invention.
The specific embodiment
Describe specific embodiments of the invention in detail below in conjunction with accompanying drawing.
As shown in Figure 1, an embodiment of integral type evaporator with submerged combustion of the present invention, it can be made by stainless steel, comprise the combustion chamber 1 that supplies landfill gas and combustion air to burn within it, and the vaporization chamber 2 of evaporation percolate, 1 inside, combustion chamber is lined with refractory material, and the sidewall on described vaporization chamber 2 tops is provided with blast pipe 6, the middle part is provided with the feed tube 7 of input percolate, and the bottom is provided with the drain pipe 10 of discharging concentrate.One is become with vaporization chamber 2 in combustion chamber 1, and 1 bottom, combustion chamber is immersed in the liquid of vaporization chamber 2, and 1 bottom, combustion chamber is provided with distribution of gas weir 3.The submergence on distribution of gas weir 3 is 0.6-0.8m.Porous air distribution plate 4 is arranged in the liquid of vaporization chamber 2, is positioned at 3 tops, described distribution of gas weir.Porous air distribution plate 4 is positioned under the liquid level 0.2m at least.
As shown in Figure 2, second embodiment of the present invention and first embodiment difference are: described porous air distribution plate 4 is at least 2, and each porous air distribution plate be arranged in parallel at vaporization chamber liquid intermediate reach.The porous air distribution plate 4 of the superiors is positioned under the liquid level 0.2m at least.
The course of work of integral type evaporator with submerged combustion is summarized as follows:
Landfill gas and combustion air enter 1 burning of landfill gas combustion chamber, and high-temperature fuel gas is torn by the distribution of gas weir 3 of bottom, combustion chamber, and again through porous air distribution plate 4, high-temperature gas is split into numerous minute bubbles, has increased heat transfer area greatly.Boil-off gas carries out gas-liquid separation at steam separated space 5, is drained by blast pipe 6 then.
Percolate enters vaporization chamber inside by feed tube 7, keep the height of evaporimeter liquid level 8, makes the submergence of distribution weir 3 of combustion chamber in the scope of 0.6-0.8m.Percolate concentrates at the enrichment region 9 of evaporimeter, is discharged by drain pipe 10 then.
The present invention can be applicable to the processing of percolate from garbage filling field, also can be used for the processing of leachate of garbage burning factory and other high concentrated organic wastewater.
Claims (5)
1. the integral type evaporator with submerged combustion of concentrated leachate, comprise the combustion chamber that supplies landfill gas and combustion air to burn within it, and the vaporization chamber of evaporation percolate, inside, described combustion chamber is lined with refractory material, the sidewall on described vaporization chamber top is provided with blast pipe, the middle part is provided with the feed tube of input percolate, the bottom is provided with the drain pipe of discharging concentrate, it is characterized in that: described combustion chamber and vaporization chamber are become one, bottom, described combustion chamber is immersed in the liquid of vaporization chamber, the bottom, combustion chamber is provided with the distribution of gas weir, and described integral type evaporator with submerged combustion also comprises the porous air distribution plate that is positioned at top, described distribution of gas weir that is arranged in the vaporization chamber liquid.
2. integral type evaporator with submerged combustion according to claim 1 is characterized in that: the submergence on described distribution of gas weir is 0.6-0.8m.
3. integral type evaporator with submerged combustion according to claim 1 is characterized in that: described porous air distribution plate is positioned under the liquid level 0.2m at least.
4. integral type evaporator with submerged combustion according to claim 1 is characterized in that: described porous air distribution plate is at least 2, and each porous air distribution plate be arranged in parallel at vaporization chamber liquid intermediate reach, and the porous air distribution plate of the superiors is positioned under the liquid level 0.2m at least.
5. integral type evaporator with submerged combustion according to claim 1 is characterized in that: described integral type evaporator with submerged combustion is made by stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410042792 CN1263530C (en) | 2004-05-28 | 2004-05-28 | Unitary immersed burning evaporator of concentrated percolate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410042792 CN1263530C (en) | 2004-05-28 | 2004-05-28 | Unitary immersed burning evaporator of concentrated percolate |
Publications (2)
| Publication Number | Publication Date |
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| CN1583205A CN1583205A (en) | 2005-02-23 |
| CN1263530C true CN1263530C (en) | 2006-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200410042792 Expired - Fee Related CN1263530C (en) | 2004-05-28 | 2004-05-28 | Unitary immersed burning evaporator of concentrated percolate |
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| CN (1) | CN1263530C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10907828B2 (en) | 2018-01-16 | 2021-02-02 | Tsinghua University | Integrated treatment method of two-stage submerged combustion evaporation for organic waste liquid |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298640C (en) * | 2005-07-15 | 2007-02-07 | 清华大学 | Resource process of inflitration liquid |
| FI121163B (en) * | 2008-06-19 | 2010-08-13 | Outotec Oyj | A submerged evaporator |
| CN102070215B (en) * | 2010-11-16 | 2012-07-04 | 兴宁市洪才电镀废水处理设备有限公司 | Internal combustion evaporation cylinder device on waste water treatment equipment |
| CN102351260B (en) * | 2011-07-07 | 2013-05-08 | 大连理工大学 | Equipment and method for treating severe sewage by using high pressure burning and evaporation in water |
| CN103822346B (en) * | 2014-02-24 | 2016-06-29 | 李博平 | A kind of submersible burner and method |
| CN106186127B (en) * | 2016-07-14 | 2022-08-26 | 中国城市建设研究院有限公司 | Thermal evaporation concentration device for treating membrane concentrated solution |
| CN107140706A (en) * | 2017-06-08 | 2017-09-08 | 江苏新奇环保有限公司 | A kind of low temperature and high concentration sewage disposal vaporization chamber distribution device |
| CN108609787A (en) * | 2018-03-30 | 2018-10-02 | 北京格林雷斯环保科技有限公司 | A kind of landfill leachate submersible burning processing system |
| CN109126169A (en) * | 2018-09-28 | 2019-01-04 | 王振华 | Combustion evaporator under a kind of liquid suspension |
| CN111870978B (en) * | 2020-08-07 | 2021-08-24 | 清华大学 | Submerged combustion evaporator |
-
2004
- 2004-05-28 CN CN 200410042792 patent/CN1263530C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10907828B2 (en) | 2018-01-16 | 2021-02-02 | Tsinghua University | Integrated treatment method of two-stage submerged combustion evaporation for organic waste liquid |
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| CN1583205A (en) | 2005-02-23 |
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Granted publication date: 20060712 Termination date: 20110528 |