CN2518844Y - Ammonia air-separating tower for garbage percolation liquid - Google Patents
Ammonia air-separating tower for garbage percolation liquid Download PDFInfo
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- CN2518844Y CN2518844Y CN 01274455 CN01274455U CN2518844Y CN 2518844 Y CN2518844 Y CN 2518844Y CN 01274455 CN01274455 CN 01274455 CN 01274455 U CN01274455 U CN 01274455U CN 2518844 Y CN2518844 Y CN 2518844Y
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Abstract
The utility model relates to an ammonia air-separating tower for garbage percolation liquid, which comprises a tower body, a percolation liquid inlet, a liquid phase outlet, an air inlet, an air phase outlet and the filling material. The inside of the tower body is in turns provided with a liquid initial distributing layer, an upper layer filling bed layer, a liquid collection repeated distributing layer, a lower layer filling bed layer and an air distributor from up to down, and the percolation liquid inlet is connected with the liquid initial distributor, and the air inlet is connected with the air distributor. The ammonia air-separating tower device of the utility model is of small investment, low energy consumption, low treatment cost, big operation elasticity and good separating effect, which improves the ammonia nitrogen eliminating rate, and the utility model is applicable for the continuous treatment for big batched industrialized ammonia nitrogen waste water.
Description
Technical field
The utility model relates to a kind of Ammonia blowing-out tower for the treatment of refuse percolate.
Background technology
At present, the processing of China's municipal wastes is landfill disposal basically, and the processing of landfill yard percolate is to need the urgent problem that solves in landfill yard design, operation and the management.Because the percolate change of water quality is big, organism and ammonia nitrogen concentration height, biodegradability is relatively poor, and its processing never is well solved.
Physico-chemical process and biochemical method are generally adopted in processing to percolate.Physico-chemical process is higher because of its processing cost, is unsuitable for the processing of the percolate of big yield, and running cost is low, high treating effect is the prefered method that percolate is handled and biochemical method has.In the treating processes of percolate, remove high strength ammonia in the percolate and be the key in the whole technology, very important to improving the biodegradability that percolate biology handles, only after efficiently removing ammonia nitrogen, could guarantee normally carrying out of follow-up biochemical treatment.
In the prior art, the high strength ammonia in the percolate can be removed by stripping before biochemical treatment.Suzhou urban construction environmental protection institute and HarBin Building University disclose a kind of method that adopts the aeration stripping method to remove ammonia in the percolate from garbage filling field (the 12nd the 2nd phase of volume of " pollution prevention technique " June in 1999), at pH=11, temperature is under the condition of 10L/min 22.5 ℃ and air demand, through 5 hours aeration stripping, can obtain 68.7～82.5% ammonia-state nitrogen clearance.But this method sharply descends the low temperature aging fruit, and noise is big, working cost is higher." environmental science is dynamic " 1998 the 4th phases disclose a kind of method that adopts blow-off method to handle ammonia nitrogen waste water in the soda ash production, it is the pebble packing of in the stripping post, packing into, under pH＞10 conditions, the bubbling air stripping can reach the total clearance of ammonia nitrogen and be 66% effect.This method technology is simple, easy and simple to handle, but clearance is lower." Sichuan environment " 2000 the 19th the 1st phases of volume disclose a kind of method that adopts Ammonia blowing-out tower to handle ammonia nitrogen in the waste water.Described Ammonia blowing-out tower is made up of cat head aerofoil fan, water-recovering device, water inlet water distributor, cement system grid filler, water collector, blast pipe and blast pipe aerofoil fan, in pH11～12, corresponding gas-water ratio is stripping under 4500～5500 conditions, ammonia-N removal rate is 70～84%.This method gas-water ratio height, ammonia nitrogen removal frank is not high.
Summary of the invention
At aforesaid method stripping device complexity, gas-water ratio is big, noise is big, energy consumption is high and ammonia nitrogen removal frank is low defective, the purpose of this utility model provides a kind of novel percolate Ammonia blowing-out tower, this tower can reduce gas-water ratio and processing cost, improve ammonia nitrogen removal frank, the continuous processing of competent large-batch industrial ammonia nitrogen waste water.
For achieving the above object, percolate Ammonia blowing-out tower of the present utility model comprises tower body, percolate import, liquid phase outlet, air intlet, gaseous phase outlet and filler etc., be furnished with liquid initial sparger, upper strata filling batch, liquid collecting redistributor, lower floor's filling batch and air-distributor in the described tower body from top to bottom successively, the percolate import links to each other with the liquid initial sparger, and air intlet links to each other with air-distributor.
Percolate Ammonia blowing-out tower of the present utility model, described tower body diameter can be according to the size decision of percolate treatment capacity, and material can be carbon steel, stainless steel, clad steel plate or carbon steel line with rubber.
The liquid initial sparger can be a kind of in calandria liquid distributor, multistage tank type liquid distributor, disc type liquid distributor, the jet-type liquid sparger according to different technology, and material can be carbon steel or stainless steel.
Described upper strata filling batch and lower floor's filling batch are structured packings, and material can be carbon steel, stainless steel or plastics.Ammonia stripping process mainly is by by the mass transfer of liquid phase to gas phase in the percolate, stripping surface fast updating and from percolate removal of ammonia and nitrogen, therefore, require waste water in the filling surface biofilm, gas-liquid conversed flowing, gas contacts with liquid and dynamically updates fast, and the ammonia in the percolate constantly is discharged in the air.All there are shortcomings such as specific surface area is little, flux is low, resistance is big in used pebble packing, cement grid filler, plastic filler and batten filler in the existing stripping device.The structured packing pressure drop that percolate Ammonia blowing-out tower of the present utility model adopts is low, the power of blower fan is descended at double, process cost is low, and filler efficient height, and flux is big, its separation efficiency can keep suitable stablizing with the variation of operational load in one section very big operating restraint, that is to say the employing structured packing, the operational load wide ranges of whole tower, turndown ratio is big, tower diameter is reduced, and tower height reduces.Used structured packing is preferably screen waviness packings, Mellapak packing or mesh ripple packing.
The hold-down gear of filler is generally the screen shape, is positioned over packing layer upper end edge device outer ring circumference and is anchored on Ta Bishang with stationary installation.When need carried as other column internalss such as spargers, hold-down gear must be designed to be fixed in the demountable structure of tower wall.
The bracing or strutting arrangement of filler is generally the screen shape.The installation of bracing or strutting arrangement in tower can be installed in for the minor diameter tower on the leg that is fixed on the tower body, should adopt support beam structure for the major diameter tower, and truss-frame structure and should be adopted for the tower of large diameter thereon in the bracing or strutting arrangement position.
Described liquid collecting redistributor is a kind of in calandria liquid distributor, multistage tank type liquid distributor, disc type liquid distributor, the jet-type liquid sparger.
The Ammonia blowing-out tower tower diameter is big, and the packing layer aspect ratio is big, and air is gone into from the tower pucking, and inlet high cycle speed, as do not have suitable gas distributor and can cause air-flow generation bias current causes in the filling batch gas distribution inhomogeneous, reduces the separation efficiency of packing tower greatly.Therefore, the air-distributor of selecting for use should have characteristics such as the uniform performance of gas phase is good, and entrance friction is little, and institute takes up space little, and is simple in structure.The air-distributor that the utility model is selected for use be straight tube baffle plate type, straight pipe with holes formula, tangential bugle formula, singly cut or two inlets circulation type, vane-type, jet-type gas distributor in a kind of, structural shape can be selected according to processing condition, and material can be carbon steel or stainless steel.
The principle of work of percolate Ammonia blowing-out tower of the present utility model is: percolate enters in the tower from the percolate import, carry out initial distribution through the liquid initial sparger, fall into the upper strata filling batch, redistribute through the liquid collecting redistributor again, fall into lower floor's filling batch, the liquid exit at the bottom of the tower flows out at last.Air is blasted in the tower from air intlet by gas blower, and distributing through air-distributor upwards enters lower floor's filling batch, enters the upper strata filling batch through the liquid collecting redistributor again, discharges outside the tower from the gaseous phase outlet of cat head by the original liquid sparger at last.In said process, percolate forms even liquid film at filling surface, gas-liquid conversed flowing, and air contacts and brings in constant renewal at filling surface with percolate, and the ammonia in the percolate constantly is discharged in the air, realizes the stripping of ammonia.
Percolate Ammonia blowing-out tower of the present utility model adopts novel structured packing and high performance air and liquid distributor to carry out gas distribution, on the basis of water distribution, calculate through processing simulation, determined the suitable gas-water ratio of Ammonia blowing-out tower industrialization operation, gas-water ratio≤3800,4500～6000 gas-water ratio has descended 15～35% when moving than domestic existing Ammonia blowing-out tower, facility investment expense and power charge have been saved greatly, energy consumption is low, reduced cost for wastewater treatment, improved ammonia-N removal rate in the percolate, its ammonia nitrogen removal frank can reach more than 90%, has realized the operate continuously of large-batch industrial processing ammonia nitrogen waste water.Because the utility model adopts structured packing to substitute pebble packing or cement grid filler, makes the operational load wide ranges of whole tower, turndown ratio is big, and tower diameter is reduced, and tower height reduces, and has improved separating effect.The occupy-place in tower of liquid distributor of selecting for use and air-distributor is low, has saved space in the tower, and it is good that liquids and gases are distributed, and increased the gas-to-liquid contact area, and resistance is little, and pressure drop is low, is difficult for stopping up, and turndown ratio is big.
Description of drawings
Fig. 1 is a percolate Ammonia blowing-out tower structural representation of the present utility model.
Shown in the number in the figure:
The 1-tower body, 2-liquid initial sparger, 3, the 7-hold-down gear, 4-upper strata filling batch, 5,9-bracing or strutting arrangement, 6-liquid collecting redistributor, 8-lower floor filling batch, 10-air-distributor, the outlet of 11-liquid phase, 12-air intlet, the import of 13-percolate, 14-gaseous phase outlet.
Embodiment
Below will be by the detailed description of percolate Ammonia blowing-out tower embodiment of the present utility model be further set forth the utility model, but embodiment is not to restriction of the present utility model.
As shown in Figure 1, percolate Ammonia blowing-out tower of the present utility model, comprise tower body 1, percolate import 13, liquid phase outlet 11, air intlet 12, gaseous phase outlet 14 and filler etc., be furnished with liquid initial sparger 2, upper strata filling batch 4, liquid collecting redistributor 6, lower floor's filling batch 8 and air-distributor 10 in the tower body 1 from top to bottom successively, percolate import 13 links to each other with liquid initial sparger 2, and air intlet 12 links to each other with air-distributor 10.Described liquid initial sparger 2 is calandria liquid distributors, described upper strata filling batch 4 and lower floor's filling batch 8 are mesh ripple packings, described liquid collecting redistributor 6 is disc type liquid distributors, and the air-distributor 10 of described percolate Ammonia blowing-out tower is a two inlets bugle formula gas distributor.
Above-mentioned Ammonia blowing-out tower is applied to a refuse landfill percolate is handled, tower diameter 300mm, tower height 10m, wastewater treatment capacity 150L/h advances ammonia content 2000～4000mg/L in the tower percolate, full tower pressure drop≤120mmH
2O, behind a stripping, the minimum 40mg/L that reaches of the ammonia-nitrogen content in the waste discharge, specific absorption can reach more than 98%.
At tower diameter 3200mm, tower height 14m, wastewater treatment capacity 800m
3Use ammonia nitrogen content≤60mg/L behind the stripping, single tower pressure drop≤120mmH on two Ammonia blowing-out towers of/d
2O.
Claims (6)
1, a kind of percolate Ammonia blowing-out tower, comprise tower body [1], percolate import [13], liquid phase outlet [11], air intlet [12], gaseous phase outlet [14] and filler etc., it is characterized in that: be furnished with liquid initial sparger [2], upper strata filling batch [4], liquid re-distributor [6], lower floor's filling batch [8] and air-distributor [10] in the tower body [1] from top to bottom successively, percolate import [13] links to each other with liquid initial sparger [2], and air intlet [12] links to each other with air-distributor [10].
2, percolate Ammonia blowing-out tower as claimed in claim 1 is characterized in that described liquid initial sparger [2] is a kind of in calandria liquid distributor, multistage tank type liquid distributor, disc type liquid distributor, the jet-type liquid sparger.
3, percolate Ammonia blowing-out tower as claimed in claim 1 is characterized in that described upper strata filling batch [4] and lower floor's filling batch [8] are structured packings.
4,, it is characterized in that described structured packing is a kind of in screen waviness packings, Mellapak packing, the mesh ripple packing as claim 1 or 3 described percolate Ammonia blowing-out towers.
5, percolate Ammonia blowing-out tower as claimed in claim 1 is characterized in that described liquid re-distributor [6] is a kind of in calandria liquid distributor, multistage tank type liquid distributor, disc type liquid distributor, the jet-type liquid sparger.
6, percolate Ammonia blowing-out tower as claimed in claim 1, it is characterized in that described air-distributor [10] be straight tube baffle plate type, straight pipe with holes formula, tangential bugle formula, singly cut or two inlets circulation type, vane-type, jet-type gas distributor in a kind of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01274455 CN2518844Y (en) | 2001-12-26 | 2001-12-26 | Ammonia air-separating tower for garbage percolation liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01274455 CN2518844Y (en) | 2001-12-26 | 2001-12-26 | Ammonia air-separating tower for garbage percolation liquid |
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| Publication Number | Publication Date |
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| CN2518844Y true CN2518844Y (en) | 2002-10-30 |
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| CN 01274455 Expired - Lifetime CN2518844Y (en) | 2001-12-26 | 2001-12-26 | Ammonia air-separating tower for garbage percolation liquid |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100391857C (en) * | 2005-11-11 | 2008-06-04 | 武汉科梦科技发展有限公司 | Process for removing ammonia nitrogen in solution by high dispersing |
| CN100393621C (en) * | 2006-06-08 | 2008-06-11 | 武汉科技大学 | Immersed blow desorber |
| CN101811744B (en) * | 2009-04-03 | 2011-11-30 | 武汉循环经济研究院 | Technology and device for recovering ammonia from garbage leachate in domestic garbage sanitary landfill site |
| CN103641196A (en) * | 2013-12-20 | 2014-03-19 | 上海化工研究院 | Bubbling-type degasser for removing trace gas impurities in water and application of bubbling-type degasser |
| CN104096456A (en) * | 2014-07-21 | 2014-10-15 | 苏州塔可盛电子科技有限公司 | Efficient absorption tower |
| CN107140725A (en) * | 2017-06-28 | 2017-09-08 | 无锡市中岳石化设备有限公司 | A kind of wet oxidation reactor with filler bed structure |
| CN107601606A (en) * | 2017-09-30 | 2018-01-19 | 江苏迈克化工机械有限公司 | A kind of board-like deammoniation tower |
| CN110642320A (en) * | 2019-08-27 | 2020-01-03 | 中北大学 | A rotatory packed bed for handling ammonia nitrogen waste water |
| CN110642321A (en) * | 2019-08-27 | 2020-01-03 | 中北大学 | Supergravity-enhanced dry-method denitration ammonia production device |
-
2001
- 2001-12-26 CN CN 01274455 patent/CN2518844Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100391857C (en) * | 2005-11-11 | 2008-06-04 | 武汉科梦科技发展有限公司 | Process for removing ammonia nitrogen in solution by high dispersing |
| CN100393621C (en) * | 2006-06-08 | 2008-06-11 | 武汉科技大学 | Immersed blow desorber |
| CN101811744B (en) * | 2009-04-03 | 2011-11-30 | 武汉循环经济研究院 | Technology and device for recovering ammonia from garbage leachate in domestic garbage sanitary landfill site |
| CN103641196A (en) * | 2013-12-20 | 2014-03-19 | 上海化工研究院 | Bubbling-type degasser for removing trace gas impurities in water and application of bubbling-type degasser |
| CN103641196B (en) * | 2013-12-20 | 2016-05-25 | 上海化工研究院 | A kind of bubbling degasifying apparatus and application that removes minimum gas impurity in water |
| CN104096456A (en) * | 2014-07-21 | 2014-10-15 | 苏州塔可盛电子科技有限公司 | Efficient absorption tower |
| CN107140725A (en) * | 2017-06-28 | 2017-09-08 | 无锡市中岳石化设备有限公司 | A kind of wet oxidation reactor with filler bed structure |
| CN107601606A (en) * | 2017-09-30 | 2018-01-19 | 江苏迈克化工机械有限公司 | A kind of board-like deammoniation tower |
| CN110642320A (en) * | 2019-08-27 | 2020-01-03 | 中北大学 | A rotatory packed bed for handling ammonia nitrogen waste water |
| CN110642321A (en) * | 2019-08-27 | 2020-01-03 | 中北大学 | Supergravity-enhanced dry-method denitration ammonia production device |
| CN110642320B (en) * | 2019-08-27 | 2022-06-10 | 中北大学 | A rotatory packed bed for handling ammonia nitrogen waste water |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20111226 Granted publication date: 20021030 |