CN202983506U - Oil furnace smoke purification combined tower integrating dust collection, smoke elimination and desulfurization - Google Patents

Oil furnace smoke purification combined tower integrating dust collection, smoke elimination and desulfurization Download PDF

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Publication number
CN202983506U
CN202983506U CN 201220704396 CN201220704396U CN202983506U CN 202983506 U CN202983506 U CN 202983506U CN 201220704396 CN201220704396 CN 201220704396 CN 201220704396 U CN201220704396 U CN 201220704396U CN 202983506 U CN202983506 U CN 202983506U
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CN
China
Prior art keywords
cone
tower
smoke
shower
desulfurization
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Application number
CN 201220704396
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Chinese (zh)
Inventor
杨卫东
徐多祥
付颖
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北京威肯众合环保科技有限公司
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Priority to CN 201220704396 priority Critical patent/CN202983506U/en
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Publication of CN202983506U publication Critical patent/CN202983506U/en

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Abstract

The utility model relates to an oil furnace smoke purification combined tower integrating dust collection, smoke elimination and desulfurization and belongs to the technical field of oil furnace smoke purification. The tower comprises a shell, a smoke inlet arranged at the lower part of the shell, a slurry discharging opening arranged at the bottom of the shell, a slurry discharging pump connected with the slurry discharging opening, a plurality of grades of spraying pipes which are arranged at the upper part of the smoke inlet and are arrayed with one being above another, circulating pumps in circulating pipelines which are respectively communicated with all grades of spraying pipes, a demister arranged on the spraying pipes, and a smoke outlet arranged at the top of the shell. The oil furnace smoke purification combined tower is characterized by further comprising an umbrella-shaped device which is arranged below the last grade of spraying pipe; and a layer of a pore plate is arranged between the spraying pipe at the uppermost grade and the spraying pipe at the next grade of the uppermost grade. The oil furnace smoke purification combined tower disclosed by the utility model improves the distribution of a gas field in the tower, improves the desulfurization efficiency and reduces the liquid-gas ratio, so that the cost is reduced.

Description

A kind of oil oven gas cleaning combination tower that integrates dedusting, smoke elimination, desulfurization

Technical field

The utility model belongs to oil oven flue gases purification field, particularly a kind of structural design that integrates the oil oven gas cleaning combination tower of dedusting, smoke elimination, desulfurization.

Background technology

Oil oven is generally take combustion diesel oil as main, but due to economic factor, diesel-fuel price is high, and the source of goods is nervous, and in order to reduce costs, most of enterprise selects the comparatively heavy oil of cheapness, ample supply and prompt delivery; Generally all in 3% left and right, contain a large amount of SO in furnace fuel oil discharging flue gas due to the sulfur content of heavy oil 2, to atmosphere pollution and and even the formation of acid rain suitable contribution is arranged.

Heavy oil is the last remaining low volatile product of petroleum refining process.Therefore all higher boiling high-molecular hydrocarbons (paraffin, pitch and aromatic hydrocarbons etc.) trace element of containing of similar crude oil and some that adds in refining oil process are added material, and be most of or all be trapped in heavy oil.Due to after the characteristic of heavy oil determined heavy oil combustion, the smoke components of discharging is comparatively special, is different from the smoke components of traditional combustion coal burning boiler discharging, thereby makes the degree of atmosphere pollution very serious.Particularly black smoke is billowing especially during boiler soot-blowing, Lin Geman〉2 grades.

What smoke of oil-fuel boiler wet method sulphur removing and dust removing tower generally adopted at present is the spray void tower, this tower comprises: tower body, be provided with gas approach, exhanst gas outlet and plasma discharge mouth at this tower body, be provided with at this tower bottom the slurry pump that is connected with plasma discharge mouth at the bottom of tower, be connected to the circulating pump in three circulating lines that communicate to the level Four shower on it with this liquid storage area, and be arranged on the demister on this shower.

This desulfurizing tower concrete structure as shown in Figure 1, comprise: housing 11, gas approach 12, plasma discharge mouth 13, the slurry pump 14 that is connected with the plasma discharge mouth, gas approach top arrange three to level Four shower 15, with the circulating pump 16 in circulating line that shower communicates, demister 17 on shower, top of tower exhanst gas outlet 18.

There is following point in above-mentioned oil oven fuel gas desulfurization gas wash tower type:

1. liquid-gas ratio is large, causes internal circulating load large, and corresponding desulphurization plant such as circulating pump expense increase.

2. power consumption is large.

3. in tower, the gas field distribution is uneven.

The utility model content

The purpose of this utility model is in order to overcome existing tower weak point, propose a kind of structural design that integrates the oil oven gas cleaning combination tower of dedusting, smoke elimination, desulfurization, can improve gas field distribution in tower, improve desulfuration efficiency, reduce liquid-gas ratio, thereby reduce costs.

Characteristics of the present utility model and effect:

in the utility model application and smoke of oil-fuel boiler desulfurization, add the one-level orifice plate between shower on existing void tower basis, and the progression of increase shower, and add a multistage multilayer umbellate form device under shower, flue gas is by the umbellate form device, be evenly distributed in tower, the abundant haptoreaction of liquid film with multistage umbellate form device formation, flue gas was through advancing orifice plate after multi-stage spray, flue gas is evenly distributed again, change flow velocity, also has one deck spray on orifice plate, fully contacted with sprayed slurry by equally distributed flue gas again, clean flue gas enters atmosphere after demister, flue gas flow rate is repeatedly changed in tower, there is multiple gas-liquid contact in whole desulphurization reaction process, existing gas contacts with liquid film, there is again gas to contact with drop, make reaction more abundant, thereby improved desulfuration efficiency.

Description of drawings

Fig. 1 is existing wet method void tower structural representation.

Fig. 2 is combination tower structural representation of the present utility model.

Fig. 3 is the umbellate form apparatus structure schematic diagram that arranges in the utility model combination tower.

Fig. 4 is the AND DEWATERING FOR ORIFICE STRUCTURE schematic diagram that arranges in the utility model combination tower.

The specific embodiment

a kind of collection dedusting that the utility model proposes, eliminate smoke, the oil oven gas cleaning combination tower structure that desulfurization is integrated as shown in Figure 2, comprise: housing 21, be arranged on the gas approach 22 of lower housing portion, be arranged on the plasma discharge mouth 23 of housing bottom, the slurry pump 231 that is connected with the plasma discharge mouth, the multi-stage spray pipe 24 that is arranged above and below that gas approach top arranges, respectively with circulating line that showers at different levels communicate in circulating pump 241, be arranged on the umbellate form device 25 under next stage shower, be arranged on one deck orifice plate 26 between upper level and time upper level shower, be arranged on the demister 27 on shower, and be arranged on the exhanst gas outlet 28 of case top.

The utility model is considering that the heavy oil sulfur content is large, carbon black and little, the not hydrophilic characteristic of carbon residue particle, be chosen on the basis of traditional spray column, add one deck orifice plate between inferior upper level shower and upper level shower, the umbrella shape device that adds a multilayer in next stage shower bottom, this multilayer umbellate form device makes the interior smoke distribution of tower flow to and flow velocity repeatedly changes, increase simultaneously 1-2 level shower on the basis of original shower in spray column, namely arrange 5 grades or 6 grades, can solve the problem of taking off high-sulfur and also can solve black wood charcoal seizure problem.The course of work of the present utility model is: flue gas enters tower from the combination tower lower inlet with v1 speed and rises with v1, enter the umbellate form device with v2 speed, flue gas obtains uniform distribution and initial action, turn back through umbellate form and enter spraying layer with v3 speed, divide equally flue gas with v4 speed again and enter perforated plate tower, cigarette speed with v5 arrives clear space at last, enters atmosphere through demister.

The specific embodiment and the function of above-mentioned each parts are described in detail as follows:

The design parameter of the spray column that the present embodiment adopts is as follows: diameter is 3000mm, and height overall is 15000mm, and the present embodiment housing and tower internals material are 316L entirely.The umbellate form device is set in tower, 6 grades of showers, 2 grades of demisters, 1 layer of orifice plate, all the other each parts are conventional design, can adopt and the corresponding conventional components of the present embodiment tower and design.Wherein:

The embodiment of umbellate form device is sandwich construction, as shown in Figure 3: comprise the bottom hollow cone 251 that opens wide up and down with the housing welding, be made as three layers from the cone hollow-cone lid 252(the present embodiment that the multilayer of the equidistant arrangement that diameter successively decreases successively opens wide up and down that makes progress) and the superiors are hollow vertex of a cones 253, and cone, cone lid, the vertex of a cone are connected into holistic a plurality of support bar 254 from bottom to top, the support bar lower end is welded on an angle ring 255, angle ring and the 251 inner circle welding of nethermost cone, cone 251 cylindricals have a plurality of small sircle holes 256 along circumference.

it is that the 316L sheet material of 3mm is made that above each parts of the present embodiment all adopt thickness, wherein bottom cone outside diameter and tower equal diameters are 3000mm, the cone end to vertex of a cone height overall is 2216mm, cone, the vertex of a cone and middle three layers of cone lid are uniformly distributed along the circumference by six roots of sensation support bar, and (in figure, demonstration is four support bars to fixed support, so have two be blocked in the back can't see), vertex of a cone outside diameter is 1680mm, middle three layers of cone cover outside diameter and are followed successively by from the bottom up 1940mm, 1850mm, 1766mm, each interlamellar spacing is 330mm, vertex of a cone angle is 120 °, the bottom cone cylindrical small sircle hole 256 that 80 diameters are 30mm that is uniformly distributed along the circumference out.

The example structure of orifice plate is as shown in Figure 4: circular orifice 261 peripheries and housing welding, and diameter is 3000mm, adopting thickness is that the 316L sheet material of 6mm is made.Evenly having diameter on orifice plate is the aperture 262 of 10mm, and each aperture pitch of holes is 16mm.

the combination tower of the present embodiment is little for the heavy oil fired boiler flue gas particle, the flue gas desulfurization design that not hydrophilic characteristics are carried out, flue gas enters and first passes through umbellate form device 25 in tower, flue gas covers the gap from the cone of hollow and each layer cone to be passed through, flue gas direction and flow velocity constantly are changed, under larger particles in flue gas is captured under dynamic action, simultaneously, the direct feeding umbellate form of the sprayed slurry device of next stage shower, make between each layer of umbellate form device cone lid and form liquid film, at liquid film surface generation mass transfer reaction, part sulfur dioxide in flue gas is absorbed, generating sulphite flows down from 80 uniform small sircle holes of cone cylindrical with desulfurization product, after the umbellate form device part sulfur dioxide of having tackled part bulky grain and reactive absorption, be provided with 4 grades of showers 24 on subordinate shower, form another absorption reaction district, gas-liquid contact reaction occurs to remove part sulfur dioxide and dust particale in flue gas, through behind this absorption reaction district, on be provided with one deck orifice plate 26, and increased the one-level shower on orifice plate, flue gas is by the aperture bubbling on orifice plate, go into certain altitude and bubbling area not of uniform size, make being adsorbed than granule in flue gas, sulfur dioxide is absorbed by slurries simultaneously, little based on the heavy oil soot dust granule, gently, not hydrophilic characteristics, flue gas repeatedly just can be reached strict standard limit of smog release by the slurries absorption reaction through above process, wet flue gas is through the two-stage demister, and drop is blocked, and clean flue gas enters atmosphere.

The present embodiment proves, for the heavy oil fired boiler smoke characteristic, adopt flue gas in tower to compare traditional spray column liquid-gas ratio through the combination tower in three, umbellate form device, traditional spray-absorption district, orifice plate absorption reaction district and can reduce liquid-gas ratio, thereby reduce circulating fluid volume, in tower, liquid level decreases, the loop slurry pump power that is connected with the loop slurry pipe also reduces thereupon, has reduced operating cost, has saved resource.

The leading indicator that the utility model is realized is as follows:

1 grade of cigarette<Lin Geman

Dirt<31mg/m 3

SO 2<39mg/m 3

Claims (4)

1. oil oven gas cleaning combination tower that integrates dedusting, smoke elimination, desulfurization, comprise: housing, be arranged on the gas approach of lower housing portion, be arranged on the plasma discharge mouth of housing bottom, with the slurry pump that the plasma discharge mouth is connected, the multi-stage spray pipe that is arranged above and below that gas approach top arranges, respectively with circulating line that showers at different levels communicate in circulating pump, be arranged on the demister on shower, and be arranged on the exhanst gas outlet of case top; It is characterized in that, also comprise the umbellate form device that is arranged under next stage shower, be arranged on one deck orifice plate between upper level and time upper level shower.
2. combination tower as claimed in claim 1, is characterized in that, described shower is put 5 grades or 6 grades.
3. combination tower as claimed in claim 1, it is characterized in that, described umbellate form device is sandwich construction, comprise the bottom hollow cone that opens wide up and down with the housing welding, from this cone make progress hollow-cone lid that the multilayer of the equidistant arrangement that diameter successively decreases successively opens wide up and down and the hollow vertex of a cone of the superiors, and cone, cone lid, the vertex of a cone are connected into holistic a plurality of support bar from bottom to top, the support bar lower end is welded on an angle ring, angle ring and the welding of nethermost cone inner circle, the cone cylindrical has a plurality of small sircle holes along circumference.
4. combination tower as claimed in claim 1, is characterized in that, described orifice plate is circular orifice, and this orifice plate periphery and housing welding are evenly opened aperture on orifice plate.
CN 201220704396 2012-12-18 2012-12-18 Oil furnace smoke purification combined tower integrating dust collection, smoke elimination and desulfurization CN202983506U (en)

Priority Applications (1)

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CN 201220704396 CN202983506U (en) 2012-12-18 2012-12-18 Oil furnace smoke purification combined tower integrating dust collection, smoke elimination and desulfurization

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Application Number Priority Date Filing Date Title
CN 201220704396 CN202983506U (en) 2012-12-18 2012-12-18 Oil furnace smoke purification combined tower integrating dust collection, smoke elimination and desulfurization

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103041687A (en) * 2012-12-18 2013-04-17 北京威肯众合环保科技有限公司 Oil furnace flue gas purification compound tower integrating dust removal, smoke abatement and desulphurization
CN103638801A (en) * 2013-12-13 2014-03-19 航天环境工程有限公司 Novel smoke purification spray tower
CN104941356A (en) * 2015-05-31 2015-09-30 安徽瀚洋节能科技有限公司 Industrial dust-containing tail gas apparatus
CN105080249A (en) * 2014-12-03 2015-11-25 芜湖三峰节能设备有限公司 Industrial dust-containing tail gas purification device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103041687A (en) * 2012-12-18 2013-04-17 北京威肯众合环保科技有限公司 Oil furnace flue gas purification compound tower integrating dust removal, smoke abatement and desulphurization
CN103041687B (en) * 2012-12-18 2015-05-06 北京威肯众合环保科技有限公司 Oil furnace flue gas purification compound tower integrating dust removal, smoke abatement and desulphurization
CN103638801A (en) * 2013-12-13 2014-03-19 航天环境工程有限公司 Novel smoke purification spray tower
CN103638801B (en) * 2013-12-13 2015-08-19 航天环境工程有限公司 A kind of spray column of new type purification flue gas
CN105080249A (en) * 2014-12-03 2015-11-25 芜湖三峰节能设备有限公司 Industrial dust-containing tail gas purification device
CN104941356A (en) * 2015-05-31 2015-09-30 安徽瀚洋节能科技有限公司 Industrial dust-containing tail gas apparatus

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Granted publication date: 20130612

Effective date of abandoning: 20150506