CN202191835U - Granite spraying desulphurization equipment - Google Patents

Granite spraying desulphurization equipment Download PDF

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Publication number
CN202191835U
CN202191835U CN2011202585204U CN201120258520U CN202191835U CN 202191835 U CN202191835 U CN 202191835U CN 2011202585204 U CN2011202585204 U CN 2011202585204U CN 201120258520 U CN201120258520 U CN 201120258520U CN 202191835 U CN202191835 U CN 202191835U
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China
Prior art keywords
tower
spray
numb stone
pneumatic
granite
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Expired - Fee Related
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CN2011202585204U
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Chinese (zh)
Inventor
杨培灿
晏华
邓杰
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杨培灿
晏华
邓杰
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Priority to CN2011202585204U priority Critical patent/CN202191835U/en
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Abstract

The utility model discloses granite spraying desulphurization equipment with low cost and high desulphurization and dust removal efficiency. A tower body of the granite spraying desulphurization equipment is made of granite with high acid alkali resistance; and granite sections are firmly adhered by corrosion-resistant adhesives; a pneumatic shunting device, a venture bar layer, a spraying device and a dehydrating and demisting device are sequentially arranged in the tower body and above an inlet of a gas inlet chamber; a long-period-holdup section for the gas phase and the liquid phase is formed at the lower part of the spraying device after flue gases pass through the pneumatic shunting device and the venture bar layer, so that SO2 and large-particle dust in the flue gases can be guaranteed to completely react and be adsorbed to achieve higher desulphurization and dust removal efficiency; and meanwhile, the energy consumption of a absorption liquid circulating system is enabled to be low, and the operation cost is low. The tower body of the granite spraying desulphurization equipment is made of granite, and is low in investment cost and long in service life.

Description

Fiber crops stone spray desulphurization plant
Technical field
The utility model belongs to technical field of chemical, is specifically related to a kind of numb stone spray desulphurization plant of industrial tail gas desulfurization.
Background technology
Desulphurization plant is a kind of cleaning equipment that in the commercial production field, discharges harmful substances such as dust, waste gas.The wet process of FGD cleaning equipment generally is made up of layer spray equipment of the one deck to three in tower body and the tower body and demister at present.Be an entire body from the bottom to top in the tower body, flue gas arrives cat head after getting in the tower body very soon, and is very short with the time of contact of shower water, thereby the desulfurization and dedusting effect is not ideal, especially more undesirable for the treating tail gas effect of the big exhaust gas volumn of high concentration.Tower body generally adopts carbon steel material to add preservative treatment or stainless steel material manufacturing, and the former preservative treatment is pretty troublesome, and service life is not long yet, be generally about 10 years, during need also to safeguard that and the latter's cost is very high.
The utility model content
The utility model provides the numb stone spray desulphurization plant that a kind of cost is low, manufacturing is simple, desulfurization dust-removing efficiency is high.
The utility model comprises inlet plenum, tower body and exhaust outlet, and inlet plenum is positioned at the bottom of tower body, is inserted in the tower body with the tangential direction under oblique, and its material is the same with tower body, and its top is provided with indoor spray equipment, and exhaust outlet is at the top of tower body; Up set gradually pneumatic part flow arrangement, venturi rod layer, spray equipment and dehydrating demisting device from the inlet plenum outlet in the tower body; Tower body adopts made of stones the making of fiber crops, adopts corrosion resistant bonding agent bonding firmly between each numb stone section.
The thickness of said tower body is attenuate successively from the bottom up, and between 300-350mm, inlet plenum is about 250mm to the thickness of section between the dehydrating demisting device to inlet plenum with the thickness of hypomere, dehydrating demisting device with the thickness of epimere between 200-220mm.
In the relevant position of pneumatic part flow arrangement, venturi rod layer, spray equipment and dehydrating demisting device the annulus carriage is set on the inwall of said tower body, the material of this carriage is the same with tower body, and is bonding firmly with adopting corrosion resistant bonding agent between the tower body.
Said pneumatic part flow arrangement is made up of the sheet metal that blind plate and multi-disc are shaped as isosceles trapezoid, and the bottom of blind plate is provided with the centre of support post, flows the impulsive force that makes progress to pneumatic part flow arrangement with the balance flue gas; One end of sheet metal is welded on the blind plate, the other end is welded on the steel ring of location, and the external diameter of location steel ring and the internal diameter of tower body are complementary; The angle of sheet metal and horizontal direction is between 22 °-30 °, and the circumference ventilation rate that whole sheet metal is formed is about 40%.
Said venturi rod layer comprises one group of equal diameters, corrosion resistant metal or non-metal solid post or hollow pipe and support that spacing is identical, and the ventilation rate of the circumference that said metal or non-metal solid post or hollow pipe are formed is between 40%-50%.
The quantity of said spray equipment is three layers, and the circumferential setting angle of each layer spray equipment differs 30 degree, guarantees that the tower body cross section does not spray the dead angle.
Said dehydrating demisting device comprises the many bendings corrugated sheet and the back purge system of upper and lower two-layer different size; The material of many bendings corrugated plating adopts PVC, and back purge system adopts stainless steel material.
The quantity of said back purge system is three covers; One cover back purge system respectively is set in the upper and lower both sides of lower floor's many bendings corrugated plating, the nozzle of downside up, the nozzle of upside is down; Another set of back purge system is installed in the below of many bendings of upper strata corrugated plating, and nozzle up.
Sealing between said tower body and each metal are taken over is adopted asbestos cord to add corrosion resistant bonding agent and is handled.
Said pneumatic part flow arrangement and all spray equipments and back purge system and support thereof all adopt stainless steel material.
The advantage of the utility model is:
1, tower body adopts made of stones the making of fiber crops, because numb rock land is hard, and has good resistance to acids and bases; Binding agent between each numb stone section also is acidified processing; So the inwall of whole tower body is without preservative treatment, long service life is about three times of carbon steel material.And numb stone draws materials extensively, so cost is lower, has only about 70% of the tower body made with carbon steel;
2, pneumatic part flow arrangement and venturi rod layer has strengthened the rotation rate of climb of flue gas stream; Increased the kinetic energy of flue gas stream; The rising flue gas stream can steadily be held spray the absorption liquid that gets off from the top; Between venturi rod layer and ground floor spray equipment, form at a stalemate section of the gas-liquid of a long period and cause strong gas-liquid turbulent flow contact; Impel in the flue gas acidic components to the mass transfer of circulating absorption solution, make SO2 and dust granule in the flue gas by well reaction and absorption, desulfurization dust-removing efficiency is high.Make absorption liquid circulatory system energy consumption little simultaneously, operating cost is low;
3, many bendings of dehydrating demisting device corrugated plating has good dehydration, demist and dust removing effects, makes in the flue gas of exhanst gas outlet and is substantially free of mist, and the external discharging of flue gas is smooth and easy;
4, the circumferential relative position between the interior three layers of spray equipment of tower body is the anglec of rotation 30 degree, and guaranteeing does not have the dead angle in the tower body spray cross section, and absorption liquid and flue gas can fully spray and hit, react and absorb;
5, the design resistance loss is little, and it is low to consume energy, and under the boiler load change condition, also can guarantee higher desulfurization dust-removing efficiency;
6, can guarantee that through regulating parameters such as liquid-gas ratio, calcium sulfur ratio, operation nozzle the stability of entire equipment and reliability reach 100% according to the variation of boiler load and the height of coal-fired sulfur content.
Description of drawings
Fig. 1 looks cross-sectional schematic for the master of the utility model.
Fig. 2 is the G-G cross-sectional schematic.
Fig. 3 is the F-F cross-sectional schematic.
Fig. 4 is the E-E cross-sectional schematic.
Fig. 5 is the D-D cross-sectional schematic.
Fig. 6 is the C-C cross-sectional schematic.
Fig. 7 is the B-B sketch map.
Fig. 8 is the A-A sketch map.
Fig. 9 is the H-H sketch map.
The specific embodiment
As shown in Figure 1; The utility model comprises inlet plenum 1, tower body 2 and exhaust outlet 3, and inlet plenum 1 is positioned at the bottom of tower body 2, is inserted in the tower body 2 with the tangential direction under oblique; Make the flue gas that gets into tower body 2 that the lift on the screw arranged, exhaust outlet 3 is at the top of tower body 2; Up set gradually pneumatic part flow arrangement 21, venturi rod layer 22, spray equipment 23 and dehydrating demisting device 24 from the inlet plenum outlet in the tower body 2.In the relevant position of pneumatic part flow arrangement 21, venturi rod layer 22, spray equipment 23 and dehydrating demisting device 24 annulus carriage 25 is set on the inwall of tower body 2, the material of this carriage is the same with tower body 2, and is bonding firmly with adopting corrosion resistant bonding agent between the tower body 2.Sealing between tower body 2 and each metal are taken over is adopted asbestos cord to add corrosion resistant bonding agent and is handled.
Made of stones the making of tower body 2 usefulness fiber crops adopts corrosion resistant bonding agent bonding firmly between each numb stone section.Because numb rock land is hard, and have good resistance to acids and bases, binding agent between each numb stone section also is acidified processing; So the inwall of whole tower body is without preservative treatment; Need not safeguard also that during use long service life is about three times of carbon steel material.And numb stone draws materials extensively, and cost is lower, has only about 70% of the tower body made with carbon steel.
The bulky grain flue gas is entering inlet plenum 1 under the air-introduced machine effect; This moment, flue gas had certain pressure ability, and indoor spray equipment 11 is set on the top of inlet plenum 1, and flue gas is by the absorption liquid humidifying of indoor spray equipment 11 ejections; This moment, the temperature of flue gas descended; The speed of flue gas stream also reduces, and the impact that the absorption liquid that sprays from indoor spray equipment 11 simultaneously passes through flue gas stream is atomized into littler water particle, makes gas-liquid two-phase mix more fully; Thereby make that the bulky grain flue dust is captured effectively, i.e. SO in the flue gas 2And flue dust has obtained certain absorption at this.Because inlet plenum 1 gets into tower body 2 with oblique tangential direction down, so flue gas is that rotation is risen when inlet plenum 1 gets into tower body 2.
As shown in Figure 2, pneumatic part flow arrangement 21 is made up of the sheet metal 212 that blind plate 211 and multi-disc are shaped as isosceles trapezoid, and an end of sheet metal 212 is welded on the blind plate 211, and the other end is welded on the steel ring 2121 of location, and the external diameter of this location steel ring and tower body internal diameter are complementary; On the other hand; Because flue gas stream is during through pneumatic part flow arrangement; Flow velocity increases suddenly, and sheet metal 212 and horizontal direction have the angle between 22 °-30 ° again, and whole sheet metal 212 only is about 40% circumference ventilation rate; So flue gas fails to be convened for lack of a quorum whole pneumatic part flow arrangement there is an impulsive force that makes progress, comes this impulsive force that makes progress of balance so newel 26 support blind plates 211 are set.When simultaneously flue gas stream is through this pneumatic part flow arrangement 21; Flue gas stream is passed from a plurality of narrow and small preset passages; Its rotation rate of climb is further strengthened; The energy of flue gas stream increases widely, and whole flue gas stream is mixed evenly, that is to say that this pneumatic part flow arrangement 21 has the function of stirring.
The hot flue gas stream that the rotation of coming out from pneumatic part flow arrangement 21 is risen was through venturi rod layer 22 o'clock, and the circulation area of flue gas stream diminishes suddenly again, and flow velocity moment of flue gas stream increases; The kinetic energy of flue gas stream increases, and holds from the cold absorption liquid of top three layers of spray equipment, 23 ejections, so between the venturi rod layer and the first cover spray equipment 23, form at a stalemate section of the gas-liquid of a long period and cause strong gas-liquid turbulent flow contact; Smash drop, greatly increased the specific area of absorbent, improve mass transfer, heat transfer efficiency between the gas-liquid two-phase; On the other hand; When flue gas passes through venturi rod layer, be the bubbling mass transport process of " liquid encirclement gas ", improved mass-transfer efficiency; Prolong reaction, time of contact between gas-liquid simultaneously, improved desulfurization, the dust removing effects of flue gas.Actual result shows that venturi rod layer can reduce liquid-gas ratio (L/Q) 40% significantly, reduce circulating load, thereby the actual power consumption that reduces circulating pump reaches 40%, guarantees that the desulfuration efficiency of total platform equipment reaches more than 96%.These small globules flue gas continuous and that fast rotational rises is in contact with one another collision simultaneously, absorption, capture flue dust, dissolving absorption SO 2, owing to collision, absorption, capture, globule diameter constantly increases, and decentralization reduces, and is thrown toward the tower wall, and in the collecting tank 27 at the bottom of under the gravity effect, flowing to tower, the sewage draining exit 28 by collecting tank 27 bottoms directly is discharged in sedimentation basin or the concentration basin then.
As shown in Figure 7; When flue gas after being purified is flowed through dehydrating demisting device 24 with certain speed; Contain a large amount of mists in the flue gas; Because the inertial impaction effect of gas; Mist and many bendings corrugated sheet 241 collide and are attached on its surface, and the gravitational settling that diffusion, the mist of mists are gone up in many bendings corrugated sheet 241 surface makes mist form bigger drop and with the air-flow turning of bending corrugated sheet 241 at the most that travels forward, owing to turn to centrifugal force and make drop increasing with the surface tension of rubbing action, suction-operated and the liquid of many bendings corrugated sheet 241; Up to the drop that gathers arrive greatly climbing power that the gravity that himself produces surpasses flue gas and surface tension of liquid with joint efforts the time, drop is just separated from corrugated sheet.The structure that is folded to of many bendings corrugated sheet 241 of dehydrating demisting device 25 has increased the chance that mist is collected more; The mist that is not removed is collected through identical effect at next turning, effect so repeatedly, thus improved demist efficient greatly; So flue gas is through behind the dehydrating demisting device 24; Be substantially free of mist, discharge, introduce smoke stack emission in atmosphere by air-introduced machine then from the exhaust outlet 3 at tower body top.
Because be wrapped in the dust granule in the flue gas in the mist; So can gather dust on many bendings corrugated sheet 241 of dehydrating demisting device 24, the time has been grown the flow velocity that will influence flue gas, also will increase the resistance of entire equipment; Dehydrating demisting device 24 comprises three cover back purge systems 242; One cover back purge system 242 respectively is set in the upper and lower both sides of lower floor's many bendings corrugated plating 241, the nozzle of downside up, the nozzle of upside is down; Also have a cover back purge system 2452 to be installed in the below of many bendings of upper strata corrugated plating 241, nozzle up.Set backwashing time and gap according to pressure display, the resistance that guarantees entire equipment is in design load.
According to the concrete parameter of flue gas, the spray equipment number of plies in the tower body can be adjusted, pneumatic part flow arrangement and venturi rod layer can be provided with simultaneously also one of them can only be set.If contain the SO2 of high concentration in the flue gas; Just must prolong the absorption liquid of spray equipment ejection and the strong mass transfer time between the flue gas as far as possible; Make absorption liquid fully and in the flue gas SO2 carry out chemical reaction; This is that pneumatic part flow arrangement and venturi rod layer just must be set simultaneously, in the hope of reaching best desulfurization, dust removing effects.

Claims (10)

1. a numb stone sprays desulphurization plant; Comprise inlet plenum (1), tower body (2) and exhaust outlet (3); Inlet plenum (1) is positioned at the bottom of tower body (2), is inserted in the tower body (2) with the tangential direction under oblique, and its material is the same with tower body (2); Its top is provided with indoor spray equipment (11), and exhaust outlet (3) is at the top of tower body; Up set gradually pneumatic part flow arrangement (21), spray equipment (23) and dehydrating demisting device (24) from inlet plenum (1) outlet in the tower body (2); It is characterized in that: venturi rod layer (22) is set between said pneumatic part flow arrangement (21) and spray equipment (23); Said tower body (2) adopts made of stones the making of fiber crops, adopts corrosion resistant bonding agent bonding firmly between each numb stone section.
2. numb stone spray desulphurization plant as claimed in claim 1; It is characterized in that: the thickness of said tower body (2) is attenuate successively from the bottom up; Inlet plenum (1) with the thickness of hypomere between 300-350mm; Inlet plenum (1) is about 250mm to the thickness of section between the dehydrating demisting device (24), dehydrating demisting device (24) with the thickness of epimere between 200-220mm.
3. numb stone spray desulphurization plant as claimed in claim 1; It is characterized in that: in the relevant position of pneumatic part flow arrangement (21), venturi rod layer (22), spray equipment (23) and dehydrating demisting device (24) annulus carriage (25) is set on the inwall of said tower body (2); The material of this carriage is the same with tower body (2), and is bonding firmly with adopting corrosion resistant bonding agent between the tower body (2).
4. numb stone spray desulphurization plant as claimed in claim 1; It is characterized in that: said pneumatic part flow arrangement (21) is made up of the sheet metal (212) that blind plate (211) and multi-disc are shaped as isosceles trapezoid, and the bottom of blind plate (211) is provided with centre of support post (26); One end of sheet metal (212) is welded on the blind plate (211), and the other end is welded on the location steel ring (2121), and the external diameter of location steel ring (2121) and the internal diameter of tower body (2) are complementary; The angle of sheet metal (212) and horizontal direction is between 22 °-30 °, and the circumference ventilation rate that whole sheet metal (212) is formed is about 40%.
5. numb stone spray desulphurization plant as claimed in claim 1; It is characterized in that: said venturi rod layer (22) comprises one group of equal diameters, corrosion resistant metal or non-metal solid post or hollow pipe (221) and support (222) that spacing is identical, and the ventilation rate of the circumference that said metal or non-metal solid post or hollow pipe (221) are formed is between 40%-50%.
6. numb stone spray desulphurization plant as claimed in claim 1, it is characterized in that: the quantity of said spray equipment is three layers, the circumferential setting angle of each layer spray equipment differs 30 degree.
7. numb stone spray desulphurization plant as claimed in claim 1, it is characterized in that: said dehydrating demisting device (24) comprises the many bendings corrugated sheet (241) and the back purge system (242) of upper and lower two-layer different size; The material of many bendings corrugated plating (241) adopts PVC, and back purge system (242) adopts stainless steel material.
8. numb stone spray desulphurization plant as claimed in claim 7; It is characterized in that: the quantity of said back purge system (242) is three covers; One cover back purge system (242) respectively is set in the upper and lower both sides of lower floor's many bendings corrugated plating (241), the nozzle of downside up, the nozzle of upside is down; Another set of back purge system (242) is installed in the below of many bendings of upper strata corrugated plating (241), and nozzle up.
9. numb stone spray desulphurization plant as claimed in claim 1, it is characterized in that: the sealing between said tower body (2) and each metal are taken over is adopted asbestos cord to add corrosion resistant bonding agent and is handled.
10. like claim 1 or 4 or 6 or 7 described numb stone spray desulphurization plants, it is characterized in that: said pneumatic part flow arrangement (21) and all spray equipments and back purge system (242) and support thereof all adopt stainless steel material.
CN2011202585204U 2011-07-21 2011-07-21 Granite spraying desulphurization equipment Expired - Fee Related CN202191835U (en)

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Application Number Priority Date Filing Date Title
CN2011202585204U CN202191835U (en) 2011-07-21 2011-07-21 Granite spraying desulphurization equipment

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Application Number Priority Date Filing Date Title
CN2011202585204U CN202191835U (en) 2011-07-21 2011-07-21 Granite spraying desulphurization equipment

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103120876A (en) * 2013-03-11 2013-05-29 骆金山 Air washer
CN103316553A (en) * 2013-07-05 2013-09-25 江苏博际喷雾系统有限公司 Efficient wet-type variable flow fog-spraying sprinkling dust-removing purification device
CN105727700A (en) * 2016-05-17 2016-07-06 同正环保集团有限公司 Integrated ultra-clean desulfurization and dust collection device
CN105727701A (en) * 2016-05-17 2016-07-06 同正环保集团有限公司 Integrated super-cleanness desulphurization and dust removal device
CN111974192A (en) * 2019-05-22 2020-11-24 镇江东亚碳素焦化有限公司 Desulfurization system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103120876A (en) * 2013-03-11 2013-05-29 骆金山 Air washer
CN103316553A (en) * 2013-07-05 2013-09-25 江苏博际喷雾系统有限公司 Efficient wet-type variable flow fog-spraying sprinkling dust-removing purification device
CN105727700A (en) * 2016-05-17 2016-07-06 同正环保集团有限公司 Integrated ultra-clean desulfurization and dust collection device
CN105727701A (en) * 2016-05-17 2016-07-06 同正环保集团有限公司 Integrated super-cleanness desulphurization and dust removal device
CN111974192A (en) * 2019-05-22 2020-11-24 镇江东亚碳素焦化有限公司 Desulfurization system

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120418

Termination date: 20180721

CF01 Termination of patent right due to non-payment of annual fee