CN101927128A - Desulphurization equipment group and working method thereof - Google Patents
Desulphurization equipment group and working method thereof Download PDFInfo
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- CN101927128A CN101927128A CN2009100335199A CN200910033519A CN101927128A CN 101927128 A CN101927128 A CN 101927128A CN 2009100335199 A CN2009100335199 A CN 2009100335199A CN 200910033519 A CN200910033519 A CN 200910033519A CN 101927128 A CN101927128 A CN 101927128A
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Abstract
The invention relates to a desulphurization equipment group and a working method thereof. The desulphurization equipment group comprises a fan, a desulphurization spray tower, an exhaust duct, a chimney and a circulating water tank. The interior of the desulphurization spray tower body is provided with a back wash device, a water spray removing device, at least one group of spraying device and an airflow uniform distribution device which are arranged from top to bottom in turn, and a granite lining is laid on an inner wall of the desulphurization spray tower. The circulating water tank comprises a sedimentation basin, a dosing basin, a detection basin and a lifting basin, wherein a mortar pump is arranged at the opening of the sedimentation basin; a stirring pump and a dosing barrel are arranged outside the dosing basin; an electric valve is arranged between the dosing barrel and the dosing basin; a pH value monitor is arranged at the opening of the detection basin; a lifting pump and a liquid pipeline filter are arranged at the opening of the lifting basin; and the liquid pipeline is communicated with the lifting basin and the spraying device of the spray tower. The working method comprises the following steps of: preparing medicaments and introducing air, spraying and desulfurizing, drying, exhausting, and recovering waste liquid for recycling. The desulphurization equipment group has the advantages of stable work, low production investment, convenient maintenance, environment-friendly technology, and long-term and stable operation of the system.
Description
Technical field
The present invention relates to the equipment and the technology of a kind of Industrial Boiler, the desulfurization of stove tail gas, relate in particular to a kind of desulphurization plant group and method of work thereof.
Background technology
Along with industrial expansion, increasing Industrial Boiler, smelt stove and be applied to all trades and professions such as electric power, chemical industry, metallurgy, coloured, building materials, light industry, the thing followed atmosphere pollution serious harm crowd's physical and mental health, various desulphurization plants and technology are also arisen at the historic moment.The patent No. is: CN97105110.0, name is called: a kind of high efficiency flue gas desulfurization technology discloses a kind of absorption liquid that is made of NaOH and sodium sulfite mixed liquor, at first absorb sulfur in smoke and generate sodium sulfite by devulcanizer 2, enter devulcanizer 1 then, absorb sulfur dioxide and generate inferior sour hydrogen sodium solution, flue gas is through twice desulfurization, and emptying behind dehumidifier again recycles the solution reclaiming of gained.The present invention produces and drops into height, the device therefor complex structure, and desulfurized effect can only reach 80-85%, and the circular regeneration cycle is slower, and operating efficiency is not high.
Summary of the invention
The present invention provides a kind of desulphurization plant group and method of work thereof in order to overcome the above problems, and described desulphurization plant group is simple in structure, working stability, and the production investment is little, long service life.The method of work desulfurized effect of described desulphurization plant group reaches more than 90% well, and production cost is low, system stability, and the spent solution regeneration cycle is short, high efficiency.
Technical scheme of the present invention is: a kind of desulphurization plant group, include blower fan, desulfuration spray tower, discharge duct, chimney, circulating water pool, the top of described desulfuration spray tower is provided with exhanst gas outlet, access hole is arranged on a side at desulfuration spray tower top, gas approach is arranged on bottom one side of desulfuration spray tower, the bottom of desulfuration spray tower is provided with overfall, described circulating water pool includes sedimentation basin, the dosing pond, detection cell and lifting pond, desulfuration spray tower body inside is disposed with back purge system from top to bottom, water fog removing device, at least one group of spray equipment and airflow uniform distribution device, the desulfuration spray tower inwall is laid the granite liner; Described overfall is connected to sedimentation basin by blow-off pipe, sedimentation basin communicates with dosing pond, detection cell and lifting pond respectively, the sedimentation basin mouth is provided with the mortar pump, the dosing pond is outside equipped with stirs pump and adds explosive barrel, add between explosive barrel and the dosing pond and be provided with electrically operated valve, the detection cell mouth is provided with the pH value monitor, promotes Chi Kou and is provided with elevator pump and liquid trap conduit device, and the spray equipment that fluid pipeline will promote pond and spray column is connected.
2, a kind of method of work of desulphurization plant group, specifically carry out according to the following steps:
1) pharmacy air inlet.Add sodium salt solution and water in the dosing pond, and the pH value of control solution is between 11-13, with elevator pump solution delivered to the spray equipment of desulfuration spray tower, blower fan is sent into the flue gas of the process dust removal process of boiler generation in the desulfuration spray tower.
2) spray desulfurization.The sodium salt solution atomizing that spray equipment is sent elevator pump here forms the water smoke of the about 1320-2950 μ of diameter m, and flue gas flow rate is set in 1.5-3m/s, reaches the degree of overlapping of 300-500% at entire equipment absorbed inside liquid, and the key reaction principle is:
Absorb 2NaOH+SO with NaOH
2=Na
2SO
3+ H
2O
Use Na
2SO
3Absorption of N a
2SO
3+ SO
2+ H
2O=2NaHSO
3
Use NaCO
3Absorption of N a
2CO
3+ SO
2=Na
2SO
3+ CO
2
3) drying.Flue gas rises to the water fog removing device in the desulfuration spray tower, and this device is removed the hydrone in the gas.
4) exhaust.Dried gas sent in the chimney by discharge duct discharge.
5) waste liquid reclaiming.The reacted waste liquid of sodium salt solution and sulfur dioxide flows out by overfall, in blow-off pipe flows into sedimentation basin, adds lime or lime stone regeneration in the sedimentation basin pond, and the key reaction principle is: regenerate with lime: CaO+H
2O=Ca (OH)
2
Ca(OH)
2+Na
2SO
3+1/2H
2O＝2NaOH+CaSO
3·1/2H
2O
Ca(OH)
2+2NaHSO
3＝Na
2SO
3+CaSO
3·1/2H
2O↓+1/2H
2O
Regenerate with lime stone:
CaCO
3+2NaHSO
3＝Na
2SO
3+CaSO
3·1/2H
2O+CO
2+1/2H
2O
Resulting solution is in the dosing pond flows into detection cell, the pH value monitor of detection cell mouth detects soup, and the electrically operated valve that control adds on the explosive barrel carries out dosing, last solution flows into to promote in the pond and recycles, and transports after the sediment calcium sulfide in the sedimentation basin is pumped into the mummification device processes with mortar.
A kind of advantage of desulphurization plant group is: working stability, and the production investment is little, long service life, floor space is few, and is easy to maintenance.
A kind of advantage of method of work of desulphurization plant group is: the technology environmental protection, and absorbing every kilogram of sulfur dioxide needs 0.625 kilogram of sodium hydrate solid, and needs input lime to be used for regeneration for 0.875 kilogram, and liquid-gas ratio is 1L/m
3Ratio under, when pH value is controlled at 11-13, can guarantee that desulfuration efficiency reaches more than 90%, production cost is low, system stability, the spent solution regeneration cycle is short, high efficiency, inner loop absorbs, no discharging of waste liquid, and desulfurization slag is nontoxic, solubility is little, and non-secondary pollution can fully utilize, lime is made regenerative agent (actual consumption thing), and is safe and reliable, wide material sources, price is low, and method of work is easy and simple to handle, and system can steady in a long-term move.
Description of drawings
Fig. 1 is a structural representation of the present invention.
1 is blower fan among the figure, the 2nd, and discharge duct, the 3rd, chimney, the 4th, back purge system, the 5th, water fog removing device, the 6th, spray equipment, the 7th, airflow uniform distribution device, the 8th, gas approach, the 9th, overfall, the 11st, blow-off pipe, the 12nd, sedimentation basin, the 13rd, dosing pond, the 14th, detection cell, the 15th, promote the pond, the 16th, the mortar pump, the 17th, stir pump, the 18th, add explosive barrel, the 19th, electrically operated valve, the 20th, pH value monitor, the 21st, elevator pump, the 22nd, fluid pipeline.
Fig. 2 is the enlarged drawing of I among Fig. 1.
10 is granite liners among the figure.
The specific embodiment
A kind of desulphurization plant group, include blower fan 1, desulfuration spray tower, discharge duct 2, chimney 3, circulating water pool, the top of described desulfuration spray tower is provided with exhanst gas outlet, access hole is arranged on a side at desulfuration spray tower top, gas approach 8 is arranged on bottom one side of desulfuration spray tower, the bottom of desulfuration spray tower is provided with overfall 9, the desulfuration spray tower inwall is laid granite liner 10, desulfuration spray tower body inside is disposed with back purge system 4 from top to bottom, water fog removing device 5, at least one group of spray equipment 6 and airflow uniform distribution device 7, described overfall 9 is connected to sedimentation basin 12 by blow-off pipe 11, sedimentation basin 12 respectively with dosing pond 18, detection cell 14 and lifting pond 15 communicate, sedimentation basin is provided with mortar pump 16 for 12 mouthfuls, the mortar of precipitation is promoted the back drying and other treatment, dosing pond 13 is outside equipped with stirs pump 17 and adds explosive barrel 18, add between explosive barrel 18 and the dosing pond 13 and be provided with electrically operated valve 19, detection cell is provided with pH value monitor 20 for 14 mouthfuls, promote Chi15Kou and be provided with elevator pump 21 and liquid trap conduit device, the spray equipment 6 that fluid pipeline 22 will promote pond 15 and spray column is connected.
A kind of method of work of desulphurization plant group, concrete job step is as follows:
1) in dosing pond 13, adds sodium salt solution and water, and according to the pH value of pH value monitor 20 control solution between 11-13, to promote the spray equipment 6 that pond 15 interior solution process fluid pipelines 22 are delivered to desulfuration spray tower with elevator pump 21, blower fan 1 is sent into the flue gas of the process dust removal process that boiler produces in the desulfuration spray tower.
2) the sodium salt solution the atomizing how staggered spray equipments of installing 6 of group are sent elevator pump 21 here, form the water smoke of the about 1320-2950 μ of diameter m, flue gas flow rate is set in 1.5-3m/s, and the degree of overlapping that reaches 300-500% at entire equipment absorbed inside liquid absorbs sulfur dioxide, and the key reaction principle is:
Absorb 2NaOH+SO with NaOH
2=Na
2SO
3+ H
2O
Use Na
2SO
3Absorption of N a
2SO
3+ SO
2+ H
2O=2NaHSO
3
Use NaCO
3Absorption of N a
2CO
3+ SO
2=Na
2SO
3+ CO
2
3) flue gas after the desulfurization rises to the water fog removing device 5 in the desulfuration spray tower, and this device is removed the hydrone in the gas.
4) dried gas is sent into discharging in the chimney 3 by discharge duct 2.
5) the reacted waste liquid of sodium salt solution and sulfur dioxide flows out by overfall 9, flows in the sedimentation basin 12 through blow-off pipe 11, adds lime or lime stone regeneration in sedimentation basin 12, and the key reaction principle is: regenerate with lime: CaO+H
2O=Ca (OH)
Ca(OH)
2+Na
2SO
3+1/2H
2O＝2NaOH+CaSO
3·1/2H
2O
Ca(OH)
2+2NaHSO
3＝Na
2SO
3+CaSO
3·1/2H
2O+1/2H
2O
Regenerate with lime stone:
CaCO
3+2NaHSO
3＝Na
2SO
3+CaSO
3·1/2H
2O+CO
2+1/2H
2O
Resulting solution is in the 13 inflow detection cells 14 of dosing pond, 20 pairs of soups of the pH value monitor that detection cell is 14 mouthfuls detect, do not reach setting value 11 the time when pH value occurring, the electrically operated valve 19 that 20 controls of pH value monitor add on the explosive barrel 18 is opened automatically, when reaching the pH value of setting, close electrically operated valve 19, solution flows into to promote in the pond 15 and recycles, sediment calcium sulfide in the sedimentation basin 12 transports with mortar pump 16, be transported to sludge dewatering equipment and carry out dehydration and drying, the moisture that is removed is led back circulating water pool.
Claims (2)
1. desulphurization plant group, include blower fan, desulfuration spray tower, discharge duct, chimney, circulating water pool, the top of described desulfuration spray tower is provided with exhanst gas outlet, access hole is arranged on a side at desulfuration spray tower top, gas approach is arranged on bottom one side of desulfuration spray tower, the bottom of desulfuration spray tower is provided with overfall, described circulating water pool includes sedimentation basin, the dosing pond, detection cell and lifting pond, it is characterized in that: desulfuration spray tower body inside is disposed with back purge system from top to bottom, water fog removing device, at least one group of spray equipment and airflow uniform distribution device, the desulfuration spray tower inwall is laid the granite liner; On described overfall, blow-off pipe is installed, blow-off pipe is connected to sedimentation basin, sedimentation basin communicates with dosing pond, detection cell and lifting pond respectively, the sedimentation basin mouth is provided with the mortar pump, the dosing pond is outside equipped with stirs pump and adds explosive barrel, adds between explosive barrel and the dosing pond to be provided with electrically operated valve, and the detection cell mouth is provided with the pH value monitor, promote Chi Kou and be provided with elevator pump and liquid trap conduit device, the spray equipment that fluid pipeline will promote pond and spray column is connected.
2. the method for work of a desulphurization plant group is characterized in that: specifically carry out according to the following steps:
1) pharmacy air inlet.Add sodium salt solution and water in the dosing pond, and the pH value of control solution is between 11-13, with elevator pump solution delivered to the spray equipment of desulfuration spray tower, blower fan is sent into the flue gas of the process dust removal process of boiler generation in the desulfuration spray tower.
2) spray desulfurization.The sodium salt solution atomizing that spray equipment is sent elevator pump here forms the water smoke of the about 1320-2950 μ of diameter m, and flue gas flow rate is set in 1.5-3m/s, reaches the degree of overlapping of 300-500% at entire equipment absorbed inside liquid, and the key reaction principle is:
Absorb 2NaOH+SO with NaOH
2=Na
2SO
3+ H
2O
Use Na
2SO
3Absorption of N a
2SO
3+ SO
2+ H
2O=2NaHSO
3
Use NaCO
3Absorption of N a
2CO
3+ SO
2=Na
2SO
3+ CO
2
3) drying.Flue gas rises to the water fog removing device in the desulfuration spray tower, and this device is removed the hydrone in the gas.
4) exhaust.Dried gas sent in the chimney by discharge duct discharge.
5) waste liquid reclaiming.The reacted waste liquid of sodium salt solution and sulfur dioxide flows out by overfall, in blow-off pipe flows into sedimentation basin, adds lime or lime stone regeneration in the sedimentation basin pond, and the key reaction principle is: regenerate with lime: CaO+H
2O=Ca (OH)
2
Ca(OH)
2+Na
2SO
3+1/2H
2O＝2NaOH+CaSO
3·1/2H
2O
Ca(OH)
2+2NaHSO
3＝Na
2SO
3+CaSO
3·1/2H
2O↓+1/2H
2O
Regenerate with lime stone:
CaCO
3+2NaHSO
3＝Na
2SO
3+CaSO
3·1/2H
2O+CO
2+1/2H
2O
Resulting solution is in the dosing pond flows into detection cell, the pH value monitor of detection cell mouth detects soup, and the electrically operated valve that control adds on the explosive barrel carries out dosing, last solution flows into to promote in the pond and recycles, and transports after the sediment calcium sulfide in the sedimentation basin is pumped into the mummification device processes with mortar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100335199A CN101927128A (en) | 2009-06-23 | 2009-06-23 | Desulphurization equipment group and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100335199A CN101927128A (en) | 2009-06-23 | 2009-06-23 | Desulphurization equipment group and working method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101927128A true CN101927128A (en) | 2010-12-29 |
Family
ID=43366715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100335199A Pending CN101927128A (en) | 2009-06-23 | 2009-06-23 | Desulphurization equipment group and working method thereof |
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| CN (1) | CN101927128A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102772993A (en) * | 2011-10-26 | 2012-11-14 | 何学文 | Device and method for waste gas treatment |
| CN107321162A (en) * | 2017-08-14 | 2017-11-07 | 佛山晨格自动化科技有限公司 | Kiln gas exhaust apparatus |
| CN108624340A (en) * | 2017-03-16 | 2018-10-09 | 邢台旭阳科技有限公司 | Wet method coke pressure quenching system and coke quenching method |
| CN109260869A (en) * | 2018-11-29 | 2019-01-25 | 邢明 | A kind of industrial waste gas treatment process |
| CN117205723A (en) * | 2023-10-31 | 2023-12-12 | 河南富景达橡塑有限公司 | Banburying waste gas treatment device and treatment method thereof |
-
2009
- 2009-06-23 CN CN2009100335199A patent/CN101927128A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102772993A (en) * | 2011-10-26 | 2012-11-14 | 何学文 | Device and method for waste gas treatment |
| CN108624340A (en) * | 2017-03-16 | 2018-10-09 | 邢台旭阳科技有限公司 | Wet method coke pressure quenching system and coke quenching method |
| CN107321162A (en) * | 2017-08-14 | 2017-11-07 | 佛山晨格自动化科技有限公司 | Kiln gas exhaust apparatus |
| CN109260869A (en) * | 2018-11-29 | 2019-01-25 | 邢明 | A kind of industrial waste gas treatment process |
| CN117205723A (en) * | 2023-10-31 | 2023-12-12 | 河南富景达橡塑有限公司 | Banburying waste gas treatment device and treatment method thereof |
| CN117205723B (en) * | 2023-10-31 | 2024-01-30 | 河南富景达橡塑有限公司 | Banburying waste gas treatment device and treatment method thereof |
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Application publication date: 20101229 |