CN204159214U - Multifunctional smoke system for desulfuration and denitration - Google Patents
Multifunctional smoke system for desulfuration and denitration Download PDFInfo
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- CN204159214U CN204159214U CN201420506742.7U CN201420506742U CN204159214U CN 204159214 U CN204159214 U CN 204159214U CN 201420506742 U CN201420506742 U CN 201420506742U CN 204159214 U CN204159214 U CN 204159214U
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Abstract
The utility model relates to a kind of Multifunctional smoke system for desulfuration and denitration and desulfurization denitration method, is by desulfuring and denitrifying apparatus, active coke regeneration device, material conveying device and sulfuric acid conversion device, is connected to form between each device by pipeline; The utility model adopts suitching type feed to solve flue gas along the excessive problem of feeder channel, reducing the height of device, solving because crossing large problem with high investment; Adopt wedge wire screen to achieve desulphurization denitration to carry out simultaneously, solve the problem high with breakage rate of blocking up, improve flue gas percent of pass.Regenerating unit adopts boiler hot flue gas through being cooled to the regenerator bed directly sending into regenerating unit after 450 DEG C, for regenerator bed heating after again for preheating bed heat, then dust arrester and desulfuring and denitrifying apparatus is turned back to by pipeline, take full advantage of the waste heat of boiler smoke, do not need separately to establish the heaters such as hot-blast stove, save the occupation of land of heater, greatly saved the energy, save equipment investment, reduce construction cost and operating cost.
Description
Technical field:
The utility model relates to a kind of desulphurization denitration of fire coal boiler fume, especially uses the device of sulphur in the catalyst removal flue gas of active Jiaozhuo and nitre.
Background technology:
The energy of China is based on fire coal, and the raw coal accounting for coal production 75%, for direct burning, produces severe contamination in coal combustion process, as CO in flue gas
2be greenhouse gases, SOx can cause acid rain to be formed, and NOX causes one of acid rain arch-criminal, also can damage the ozone layer under certain condition and produce photochemical fog etc. simultaneously.The coal-fired flue gas produced is one of greatest contamination source of causing Eco-environmental Issues in China to destroy in a word.The energy-consuming of China accounts for 8% ~ 9%, SO of the world
2discharge capacity account for 15.1% of the world, the coal-fired SO discharged
2account for again 87% of national total release.The Chinese coal output of 1 year and consumption up to 1,200,000,000 tons, SO
2annual emissions be more than 2000 ton.
Flue gas desulfurization technique is control SO
2with one of the most effective means of acid rain harm, be mainly divided into wet process of FGD, dry flue gas desulphurization and semi-dry process flue gas desulphurization by process characteristic.Resourcebility activated coke desulfurization technology is the recyclable dry desulfurizing process of Sulphur ressource based on physics-chemisorbed principle, and its desulfurization principle is within the scope of 120-160 DEG C, SO in activated coke absorption flue gas
2, H
2o and O
2, under activated coke catalytic action, generate sulfuric acid, be stored in activated coke micropore, adsorb saturated activated coke and be heated to about 400 DEG C, the carbon be adsorbed in the sulfuric acid of activated coke micropore and activated coke reacts, and discharges high concentration SO
2(concentration 20%-30%) and regenerate, activated coke recycles, the high concentration SO discharged
2gas adopts ripe chemical process, can produce the commercial grades of multiple element sulphur, as sulfuric acid, sulphur and liquid SO
2deng.
Based on absorption and the catalytic action of activated coke, SO in flue gas
2at the temperature of 120-160 DEG C, occur to react as follows with the oxygen in flue gas, water vapour:
SO
2being converted into sulfuric acid is adsorbed in activated coke hole, activated coke adsorption layer is equivalent to high-efficient granule layer filter simultaneously, under inertial collision and the effect of interception effect, the most of dust granules in flue gas is captured at the inner different parts of bed bed, completes flue gas desulfurization and dedusting purification.Absorption SO
2after activated coke when being heated to about 400 DEG C, discharge SO
2, chemical reaction is as follows:
H
2SO
4→SO
3+H
2O
The activation be again equivalent to activated coke is reacted in the desorb of activated coke, and activated coke recycles in process, and absorption and catalytic activity not only can not reduce, and also can be improved to some extent.Activated coke after desorption and regeneration, is cooled to less than 120 DEG C, delivers to adsorption desulfurize reactor cycles use by material handling machinery.Active coke desulphurizing system is by activated coke adsorpting desulfurization device, desorption and regeneration system, desulfurizing agent induction system and SO
2gas processing treatment system composition.Desulfurizing tower and regenerator are the cores of whole system technique.Flue gas is cleaned by activated coke adsorpting desulfurization device and emptying, absorption SO
2the activated coke reached capacity moves to the regeneration of desorption and regeneration system heating, the high concentration SO reclaimed in regeneration
2mist sends into byproduct converting apparatus, and the activated coke that solution is drawn through again is adsorbed by desulfurizing agent induction system feeding adsorpting desulfurization device after screening, and activated coke is recycled, and supplements appropriate fresh activity as required burnt simultaneously.Damaged activated coke particle can be used for industrial waste water purifying etc.The mode of heating of regenerative system can select the modes such as steam, electric heater, hot-blast stove according to the concrete condition of owner.
CN1238231 discloses one " utilizing the regenerating desulfurization agent such as desulfurization charcoal to carry out dry desulfurization ", utilizes fine powder solid high reaction speed and easy flow behavior, and gas-solid also flows to lower contact and completes desulfurization, and flue gas pressure drop is little; Desulfurizing agent, by indirect heat exchange type hot recycling, produces containing about 50% SO
2gas; Pressurization and cooling and mixing gas, SO
2be liquefied separation, final production liquid sulfur dioxide byproduct.
CN2449076 discloses " a kind of flue gas desulfur device ", and it comprises the reactor body with gas approach and exhanst gas outlet and the bed of sealing, is respectively equipped with material inlet and discharging opening on the top of reactor body and bottom; In reactor body, bottom is provided with a dividing plate, is provided with at least three barriers, mutually disjoints between barrier in reactor body, and the described dividing plate between every two barriers is provided with at least one baiting valve.
CN102029105A discloses " a kind of Double-tower ammonia desulfurization device and desulphurization technological process ", comprise a desulfuration absorbing tower, be arranged on the concentrating pump bottom described desulfuration absorbing tower and crystallization pump, from top to bottom be divided in desulfuration absorbing tower for spray containing the spray-absorption section of ammonia absorbing liquid and the cooling concentration section being used for cooling ammonium sulfate, desulfurizer also comprises the oxidizing tower for ammonium sulfite solution oxidation being condensed into ammonium sulfate, described oxidizing tower is connected with described desulfuration absorbing tower by pipeline, spraying layer is provided with in the inherent described spray-absorption section of described desulfuration absorbing tower, described oxidizing tower is connected with the spraying layer of secondary cycle pump with described desulfuration absorbing tower by primary cycle pump.
It is by air inlet flue that CN202460473U discloses one " fluid bed active carbon ammonia process integration desulfurization denitration device ", ammonia import, activated carbon fluidized bed adsorption zone, cone pump, active carbon riser, regenerating active carbon district, air-introduced machine, sulfur dioxide absorber, smoke discharge pipe and heater composition, activated carbon fluidized bed adsorption zone and regenerating active carbon district are interconnected composition main body, regenerating active carbon district is on activated carbon fluidized bed adsorption zone (), heater is equipped with in regenerating active carbon district, air inlet flue and ammonia import are in the bottom of activated carbon fluidized bed adsorption zone, active carbon riser is connected to the bottom of activated carbon fluidized bed adsorption zone and the top in regenerating active carbon district, cone pump is connected on active carbon riser, be positioned at the bottom of activated carbon fluidized bed adsorption zone, one end of air-introduced machine connects the top in regenerating active carbon district, the other end is connected to the bottom of sulfur dioxide absorber, smoke discharge pipe is positioned at the top of activated carbon fluidized bed adsorption zone.
CN102430318A discloses " a kind of activated coke desulfurization denitrating system and process ", and system comprises adsorptive reactor, desorption and regeneration device, device for transporting objects and accessory substance reforming unit, connected by specific pipeline between each device, and adopt specific process practical function.Adsorptive reactor is that the two section of composite bed is cross-flow moving bed, and adsorptive reactor is made up of denitration section and desulfurization section two sections, realizes the SO in flue gas
2, NOx, bioxin, mercury and flue dust integrated purifying; Desorption and regeneration device is divided into preheating zone, renewing zone and cooling zone, realizes feeding and the burnt harmless treatment of consequent activities of the activated coke of attached collection mercury, bioxin; Desorption and regeneration device passes through heater heat exchange and recycling heat energy reclaims, and accessory substance reforming unit is used for carrying out Sulphur ressource to the desorption and regeneration gas produced in regenerative process.
Existing apparatus and method all in various degree have the upper and lower feed bin of tandem, device is higher, and construction cost is high; Desulphurization denitration divides two sections to carry out, and denitration efficiency is only 40-80%, adopts thick bed, and resistance is large, and flow velocity is uneven, negative-pressure operation, easily extraneous air is sucked, and temperature reduces, and is unfavorable for that desulfurization and denitrification reaction carries out, inflammable; Air intake dilutes sulphur, nitrogen percentage composition in de-rear flue gas, easily forms discharge false up to standard; Regenerative system, is provided with external heat device, consumes energy, takes up an area, invests the deficiencies such as large.
Summary of the invention:
The purpose of this utility model is just for above-mentioned the deficiencies in the prior art, provides a kind of activated coke desulfurization denitrating system;
The purpose of this utility model is achieved through the following technical solutions:
Activated coke desulfurization denitrating system, is by desulfuring and denitrifying apparatus, active coke regeneration device, material conveying device and sulfuric acid conversion device, is connected to form between each device by pipeline:
Described desulfuring and denitrifying apparatus is by the desulphurization denitration bed 4 being provided with two or more in desulfuring and denitrifying apparatus 1 and being separated by rail type orifice plate 2, it is exhaust gases passes 5 between desulphurization denitration bed 4, each desulphurization denitration bed 4 bottom is equipped with discharging opening 14, exhaust gases passes 5 bottom is provided with for fireproof note nitrogen pipeline, desulfuring and denitrifying apparatus 1 lower side is provided with mixing chamber 15 and smoke inlet 3, mixing chamber 15 is connected with boiler 18 with the first exhanst gas outlet 17 through dust arrester 16 by pipeline, sulphur denitrification apparatus 1 upper side is provided with fume emission mouth 12, desulfuring and denitrifying apparatus 1 top is provided with more than four elevating hoppers 10, the corresponding desulphurization denitration bed 4 of each elevating hopper 10, the bottom of each elevating hopper 10 is provided with two drain holes, separated by the dividing plate 11 established in elevating hopper 10, be divided into elevating hopper 10A and elevating hopper 10B, the first blowing motor-driven valve 6 is provided with bottom elevating hopper 10A, the second blowing motor-driven valve 7 is provided with bottom elevating hopper 10B, first blowing motor-driven valve 6 and the second blowing motor-driven valve 7 control the open and close of place drain hole respectively, the top of elevating hopper 10A is provided with the first charging motor-driven valve 8, the top of elevating hopper 10B is provided with the second charging motor-driven valve 9, first charging motor-driven valve 8 and the second blowing motor-driven valve 7 synchronously open and close, second charging motor-driven valve 9 and the first motor-driven valve 6 synchronously open and close, the charging motor-driven valve of two elevating hopper 10A and elevating hopper 10B and blowing motor-driven valve automatic-switching type feed under Single-chip Controlling, drain hole have ammonia ascending pipe, ammonia ascending pipe is provided with ammonia inlet 39, the corresponding desulphurization denitration bed 4 of each ammonia inlet 39, the top of elevating hopper 10 is provided with feed overhead traveling crane 40 and forms,
Described active coke regeneration device 31 vertically arranges by being provided with 300-530 diameter 80-100mm in airtight shell the tube layer 29 that plane is equilateral triangle arrangement, interplanar spacing between tube layer 29 is 1.25 times of tube layer 29 diameter, it is shell 27 between tube layer 29, preheating bed 43 will be divided in shell by lower buffering area 42 and upper buffering area 41, regenerator bed 44 and cooling bed 45 3 beds, preheating bed 43 sidewall is provided with preheating bed exhanst gas outlet 38, through three beds of tube layer 29, regeneration activity Jiao is walked in tube layer 29, shell 27 walks heat carrier, active coke regeneration device 31 top is provided with hopper 28, side, renewing zone 44 is provided with heating medium inlet 22, second exhanst gas outlet 19 connects air by pipeline and passes into valve 20, heat exchanger 21, heating medium inlet 22 and regenerator bed 44, running water pipe 23 is through heat exchanger 21, steam pipe 24 with add steam chest 36 and be connected, upper buffering area 41 is connected with Sulphuric acid device through ammonium sulfate outlet 30, lower buffering area 42 passes into mouth 32 through ammonia and is connected with ammonia access tube, cooling bed 45 passes into mouth 33 through air and is connected with cool air hose, the nitrogen mixing chamber 35 that active coke regeneration device 31 bottom is provided with is through adding steam chest 36, screening plant 34 and activated coke gathering-device 37 connect and compose.
The described suitching type feed formed under motor-driven valve controls, described charging motor-driven valve and blowing motor-driven valve automatic-switching type feed under the control of single-chip microcomputer, the first charging motor-driven valve 8 in elevating hopper 10A and the second blowing motor-driven valve 7 in elevating hopper 10B synchronously open and close, the second charging motor-driven valve 9 in elevating hopper 10B and the first motor-driven valve 6 in elevating hopper 10A synchronously open and close, when charging opened by the first charging motor-driven valve 8, the first motor-driven valve 6 cuts out, second motor-driven valve 7 is opened, and elevating hopper 10B is to desulphurization denitration bed 4 feed; When charging opened by the second charging motor-driven valve 9, the second motor-driven valve 7 cuts out, and the first motor-driven valve 6 is opened, and by elevating hopper 10A to desulphurization denitration bed 4 feed, each elevating hopper 10 material loading given by feed overhead traveling crane 40, and each elevating hopper 10 gives each desulphurization denitration bed 4 feed mode identical.
Described rail type orifice plate 2 forms by being vertically welded with guide rail 47 arranged in parallel on fixing muscle 48, the cross section of guide rail is trapezoidal, trapezoidal minor face is welded on fixing muscle (48), spacing 3-the 5mm of guide rail (47), spacing 40-the 60mm of fixing muscle 48, the number of guide rail 47 and the number of fixing muscle 48 depend on the size of flue gas desulfurization and denitrification device.
Described exhaust gases passes 5 width is 1.1 times of desulphurization denitration bed 4 width.
Described heat carrier is heat smoke, hot water, steam or hot blast is directly quote boiler hot flue gas.
Beneficial effect: Multifunctional smoke system for desulfuration and denitration adopts suitching type feed to solve existing apparatus flue gas along the excessive problem of feeder channel, reducing the height of device simultaneously, solving existing apparatus because crossing large problem with high investment; Desulphurization denitration bed adopts rail type orifice plate to achieve desulphurization denitration to carry out simultaneously, solve in the descending process of activated coke block up, problem that breakage rate is high, improve flue gas percent of pass.Regenerating unit adopts boiler hot flue gas through being cooled to the regenerator bed directly sending into regenerating unit after 450 DEG C, for regenerator bed heating after again for preheating bed heat, then dust arrester and desulfuring and denitrifying apparatus is turned back to by pipeline, take full advantage of the waste heat of boiler smoke, do not need separately to establish the heaters such as hot-blast stove, save the occupation of land of heater, greatly saved the energy, save equipment investment, reduce construction cost and operating cost.
Accompanying drawing illustrates:
Accompanying drawing 1 is activated coke desulfurization denitrating system structure chart
Accompanying drawing 2 is A-A ' sectional top view in accompanying drawing 1.
Accompanying drawing 3 is the structure chart of accompanying drawing 1 middle guide profiled orifice plate 2.
1 departs from denitrification apparatus, 2 rail type orifice plates, 3 smoke inlets, 4 depart from denitration bed, 5 exhaust gases passes, 6 first blowing motor-driven valves, 7 second blowing motor-driven valves, 8 first charging motor-driven valves, 9 second charging motor-driven valves, 10 elevating hoppers, 11 dividing plates, 12 fume emission mouths, 13 chimneys, 14 discharging openings, 15 mixing chambers, 16 dust arresters, 17 first exhanst gas outlets, 18 boilers, 19 second exhanst gas outlets, 20 air pass into valve, 21 heat exchangers, 22 heating medium inlets, 23 running water pipes, 24 steam pipes, 25 heating medium outlets, 26 preheating bed heating medium inlets, 27 shells, 28 regenerating unit hoppers, 29 tube layer, 30 ammonium sulfate outlets, 31 regenerating units, 32 ammonias pass into mouth, 33 air pass into mouth, 34 screening plants, 35 nitrogen mixing chambers, 36 add steam chest, 37 activated coke gathering-devices, 38 preheating bed exhanst gas outlets, 39 ammonia nozzles, 40 overhead traveling cranes, buffering area on 41, 42 times buffering areas, 43 preheating beds, 44 regenerator beds, 45 cooling beds.
Detailed description of the invention:
Below in conjunction with drawings and Examples, the present invention is described in further detail:
Embodiment 1
Being provided with four desulphurization denitration beds 4 be separated by rail type orifice plate 2 in desulfuring and denitrifying apparatus 1, is exhaust gases passes 5 between desulphurization denitration bed 4, and exhaust gases passes 5 width is 1.1 times of desulphurization denitration bed 4 width.Each desulphurization denitration bed 4 bottom is equipped with discharging opening 14, exhaust gases passes 5 bottom is provided with for fireproof note nitrogen pipeline, desulfuring and denitrifying apparatus 1 lower side is provided with mixing chamber 15 and smoke inlet 3, mixing chamber 15 is connected with boiler 18 with the first exhanst gas outlet 17 through dust arrester 16 by pipeline, dust arrester 16 is entered through the first exhanst gas outlet 17 from boiler flue gas out, enter after dedusting after mixing chamber 15 mixes with ammonia and enter desulfuring and denitrifying apparatus 1 by smoke inlet 3, while flue gas is up along exhaust gases passes 5, enter desulphurization denitration bed 4 through rail type orifice plate 2.Desulfuring and denitrifying apparatus 1 top is provided with four elevating hoppers 10, the corresponding desulphurization denitration bed 4 of each elevating hopper 10, the dividing plate 11 established in elevating hopper 10 separates, be divided into elevating hopper 10A and elevating hopper 10B, the bottom of each elevating hopper 10 is provided with two drain holes, the open and close of place drain hole are controlled respectively respectively by the first blowing motor-driven valve 6 and the second blowing motor-driven valve 7, be divided into bottom elevating hopper 10A and be provided with the first blowing motor-driven valve 6, the second blowing motor-driven valve 7 is provided with bottom elevating hopper 10B, the top of elevating hopper 10A is provided with the first charging motor-driven valve 8, the top of elevating hopper 10B is provided with the second charging motor-driven valve 9, first charging motor-driven valve 8 and the second blowing motor-driven valve 7 synchronously open and close, second charging motor-driven valve 9 and the first motor-driven valve 6 synchronously open and close.Drain hole have ammonia ascending pipe, ammonia ascending pipe is provided with ammonia inlet 39, and the corresponding desulphurization denitration bed 4 of each ammonia inlet 39, the top of elevating hopper 10 is provided with feed overhead traveling crane 40 elevating hopper 10 and adds activated coke.While first charging motor-driven valve 8 closedown on elevating hopper 10A top, the first blowing motor-driven valve 6 is opened, to desulphurization denitration bed 4 for activated coke, the flue gas entering desulphurization denitration bed 4 through rail type orifice plate 2 is descending with in desulphurization denitration bed 4 and contact with the activated coke of load ammonia, the SO in activated coke absorption flue gas
2and nitrogen oxide.SO is fallen by absorption
2fume emission mouth 12 and smoke stack emission is provided with through sulphur denitrification apparatus 1 upper side with the flue gas of nitrogen oxide.Activated coke in elevating hopper 10A opens the first charging motor-driven valve 8 while discharging closedown first blowing motor-driven valve 6, open the second blowing motor-driven valve 7 bottom elevating hopper 10B, the second charging motor-driven valve 9 of cutting out elevating hopper 10B top supplies activated coke to desulphurization denitration bed 4 simultaneously.Described charging motor-driven valve and blowing motor-driven valve automatic-switching type feed under the control of single-chip microcomputer, first charging motor-driven valve 8 and the second blowing motor-driven valve 7 synchronously open and close, second charging motor-driven valve 9 and the first motor-driven valve 6 synchronously open and close, and achieve two drain holes suitching type feed under the control of charging motor-driven valve and blowing motor-driven valve.Each elevating hopper 10 gives each desulphurization denitration bed 4 feed mode identical.
Described rail type orifice plate 2 forms by being vertically welded with guide rail 47 arranged in parallel on fixing muscle 48, the cross section of guide rail is trapezoidal, trapezoidal minor face is welded on fixing muscle (48), spacing 3-the 5mm of guide rail (47), spacing 40-the 60mm of fixing muscle 48, the number of guide rail 47 and the number of fixing muscle 48 depend on the size of flue gas desulfurization and denitrification device.
Active coke regeneration device 31 vertically arranges by being provided with 520 diameter 100mm in airtight shell the tube layer 29 that plane is equilateral triangle arrangement, interplanar spacing between tube layer 29 is 125mm, it is shell 27 between tube layer 29, preheating bed 43 will be divided in shell by lower buffering area 42 and upper buffering area 41, regenerator bed 44 and cooling bed 45 3 beds, preheating bed 43 sidewall is provided with preheating bed exhanst gas outlet 38, through three beds of tube layer 29, regeneration activity Jiao is walked in tube layer 29, shell 27 walks heat carrier, active coke regeneration device 31 top is provided with hopper 28, side, renewing zone 44 is provided with heating medium inlet 22, second exhanst gas outlet 19 connects air by pipeline and passes into valve 20, heat exchanger 21, heating medium inlet 22 and regenerator bed 44, running water pipe 23 is through heat exchanger 21, steam pipe 24 with add steam chest 36 and be connected, upper buffering area 41 is connected with Sulphuric acid device through ammonium sulfate outlet 30, lower buffering area 42 passes into mouth 32 through ammonia and is connected with ammonia access tube, cooling bed 45 passes into mouth 33 through air and is connected with cool air hose, the nitrogen mixing chamber 35 that active coke regeneration device 31 bottom is provided with is through adding steam chest 36, screening plant 34 and activated coke gathering-device 37 connect and compose.
Embodiment 2
Being provided with four desulphurization denitration beds 4 be separated by rail type orifice plate 2 in desulfuring and denitrifying apparatus 1, is exhaust gases passes 5 between desulphurization denitration bed 4, and exhaust gases passes 5 width is 1.1 times of desulphurization denitration bed 4 width.Each desulphurization denitration bed 4 bottom is equipped with discharging opening 14, exhaust gases passes 5 bottom is provided with for fireproof note nitrogen pipeline, desulfuring and denitrifying apparatus 1 lower side is provided with mixing chamber 15 and smoke inlet 3, mixing chamber 15 is connected with boiler 18 with the first exhanst gas outlet 17 through dust arrester 16 by pipeline, dust arrester 16 is entered through the first exhanst gas outlet 17 from boiler flue gas out, enter after dedusting after mixing chamber 15 mixes with ammonia and enter desulfuring and denitrifying apparatus 1 by smoke inlet 3, while flue gas is up along exhaust gases passes 5, enter desulphurization denitration bed 4 through rail type orifice plate 2.Desulfuring and denitrifying apparatus 1 top is provided with four elevating hoppers 10, the corresponding desulphurization denitration bed 4 of each elevating hopper 10, the dividing plate 11 established in elevating hopper 10 separates, be divided into elevating hopper 10A and elevating hopper 10B, the bottom of each elevating hopper 10 is provided with two drain holes, the open and close of place drain hole are controlled respectively respectively by the first blowing motor-driven valve 6 and the second blowing motor-driven valve 7, be divided into bottom elevating hopper 10A and be provided with the first blowing motor-driven valve 6, the second blowing motor-driven valve 7 is provided with bottom elevating hopper 10B, the top of elevating hopper 10A is provided with the first charging motor-driven valve 8, the top of elevating hopper 10B is provided with the second charging motor-driven valve 9, first charging motor-driven valve 8 and the second blowing motor-driven valve 7 synchronously open and close, second charging motor-driven valve 9 and the first motor-driven valve 6 synchronously open and close.Drain hole have ammonia ascending pipe, ammonia ascending pipe is provided with ammonia inlet 39, and the corresponding desulphurization denitration bed 4 of each ammonia inlet 39, the top of elevating hopper 10 is provided with feed overhead traveling crane 40 elevating hopper 10 and adds activated coke.While first charging motor-driven valve 8 closedown on elevating hopper 10A top, the first blowing motor-driven valve 6 is opened, to desulphurization denitration bed 4 for activated coke, the flue gas entering desulphurization denitration bed 4 through rail type orifice plate 2 is descending with in desulphurization denitration bed 4 and contact with the activated coke of load ammonia, the SO in activated coke absorption flue gas
2and nitrogen oxide.SO is fallen by absorption
2fume emission mouth 12 and smoke stack emission is provided with through sulphur denitrification apparatus 1 upper side with the flue gas of nitrogen oxide.Activated coke in elevating hopper 10A opens the first charging motor-driven valve 8 while discharging closedown first blowing motor-driven valve 6, open the second blowing motor-driven valve 7 bottom elevating hopper 10B, the second charging motor-driven valve 9 of cutting out elevating hopper 10B top supplies activated coke to desulphurization denitration bed 4 simultaneously.Described charging motor-driven valve and blowing motor-driven valve automatic-switching type feed under the control of single-chip microcomputer, first charging motor-driven valve 8 and the second blowing motor-driven valve 7 synchronously open and close, second charging motor-driven valve 9 and the first motor-driven valve 6 synchronously open and close, and achieve two drain holes suitching type feed under the control of charging motor-driven valve and blowing motor-driven valve.
Described rail type orifice plate 2 forms by being vertically welded with guide rail 47 arranged in parallel on fixing muscle 48, the cross section of guide rail is trapezoidal, trapezoidal minor face is welded on fixing muscle (48), spacing 3-the 5mm of guide rail (47), spacing 40-the 60mm of fixing muscle 48, the number of guide rail 47 and the number of fixing muscle 48 depend on the size of flue gas desulfurization and denitrification device.
Active coke regeneration device 31 vertically arranges by being provided with 350 diameter 80mm in airtight shell the tube layer 29 that plane is equilateral triangle arrangement, interplanar spacing between tube layer 29 is 125mm, it is shell 27 between tube layer 29, preheating bed 43 will be divided in shell by lower buffering area 42 and upper buffering area 41, regenerator bed 44 and cooling bed 45 3 beds, preheating bed 43 sidewall is provided with preheating bed exhanst gas outlet 38, through three beds of tube layer 29, regeneration activity Jiao is walked in tube layer 29, shell 27 walks heat carrier, active coke regeneration device 31 top is provided with hopper 28, side, renewing zone 44 is provided with heating medium inlet 22, second exhanst gas outlet 19 connects air by pipeline and passes into valve 20, heat exchanger 21, heating medium inlet 22 and regenerator bed 44, running water pipe 23 is through heat exchanger 21, steam pipe 24 with add steam chest 36 and be connected, upper buffering area 41 is connected with Sulphuric acid device through ammonium sulfate outlet 30, lower buffering area 42 passes into mouth 32 through ammonia and is connected with ammonia access tube, cooling bed 45 passes into mouth 33 through air and is connected with cool air hose, the nitrogen mixing chamber 35 that active coke regeneration device 31 bottom is provided with is through adding steam chest 36, screening plant 34 and activated coke gathering-device 37 connect and compose.
The described suitching type feed formed under motor-driven valve controls, the first charging motor-driven valve 8 in elevating hopper 10A and the second blowing motor-driven valve 7 in elevating hopper 10B synchronously open and close, the second charging motor-driven valve 9 in elevating hopper 10B and the first motor-driven valve 6 in elevating hopper 10A synchronously open and close, when charging opened by the first charging motor-driven valve 8, the first motor-driven valve 6 cuts out, second motor-driven valve 7 is opened, and elevating hopper 10B is to desulphurization denitration bed 4 feed; When charging opened by the second charging motor-driven valve 9, the second motor-driven valve 7 cuts out, and the first motor-driven valve 6 is opened, and by elevating hopper 10A to desulphurization denitration bed 4 feed, each elevating hopper 10 material loading given by feed overhead traveling crane 40, and each elevating hopper 10 gives each desulphurization denitration bed 4 feed mode identical.
Claims (5)
1. a Multifunctional smoke system for desulfuration and denitration, is by desulfuring and denitrifying apparatus (1), active coke regeneration device (31), material conveying device and sulfuric acid conversion device, is connected to form, it is characterized in that between each device by pipeline:
The desulphurization denitration bed (4) that two or more is separated by rail type orifice plate (2) is provided with in described desulfuring and denitrifying apparatus (1), be exhaust gases passes (5) between desulphurization denitration bed (4), each desulphurization denitration bed (4) bottom is equipped with discharging opening (14), exhaust gases passes (5) bottom is provided with note nitrogen pipeline, desulfuring and denitrifying apparatus (1) lower side is provided with mixing chamber (15) and smoke inlet (3), mixing chamber (15) is connected with boiler (18) with the first exhanst gas outlet (17) through dust arrester (16) by pipeline, sulphur denitrification apparatus (1) upper side is provided with fume emission mouth (12), desulfuring and denitrifying apparatus (1) top is provided with more than four elevating hoppers (10), the corresponding desulphurization denitration bed (4) of each elevating hopper (10), each elevating hopper (10) is provided with two drain holes, separated by the dividing plate (11) established in elevating hopper (10), be divided into elevating hopper A (10) and elevating hopper B (10), elevating hopper A (10) bottom is provided with the first blowing motor-driven valve (6), elevating hopper B (10) bottom is provided with the second blowing motor-driven valve (7), first blowing motor-driven valve (6) and the second blowing motor-driven valve (7) control the open and close of place drain hole respectively, the top of elevating hopper A (10) is provided with the first charging motor-driven valve (8), the top of elevating hopper B (10) is provided with the second charging motor-driven valve (9), first charging motor-driven valve (8) and the second blowing motor-driven valve (7) synchronously open and close, second charging motor-driven valve (9) and the first motor-driven valve (6) synchronously open and close, charging motor-driven valve and blowing motor-driven valve automatic-switching type feed under the control of single-chip microcomputer, drain hole have ammonia ascending pipe, ammonia ascending pipe is provided with ammonia inlet (39), the corresponding desulphurization denitration bed (4) of each ammonia inlet (39), the top of elevating hopper (10) is provided with feed overhead traveling crane (40) and forms,
Active coke regeneration device (3) 1 vertically arranges by being provided with 300-530 diameter 80-100mm in airtight shell the tube side (29) that plane is equilateral triangle arrangement, be shell side (27) between tube side (29), the interplanar spacing between tube side (29) is 1.25 times of tube side (29) diameter, preheating bed (43) is divided into by active coke regeneration device (31) by lower buffering area (42) and upper buffering area (41), regenerator bed (44) and cooling bed (45) three beds, cooling bed (45) sidewall is provided with blast pipe, preheating bed (43) sidewall is provided with preheating bed exhanst gas outlet (38), regenerator bed (44) is surveyed wall and is provided with heating medium outlet (25), the preheating bed heating medium inlet (26) that heating medium outlet (25) and preheating bed (43) bottom are provided with is communicated with, through three beds of tube side (29), tube side walks activated coke in (29), shell side (27) walks heat carrier, active coke regeneration device (31) top is provided with hopper (28), renewing zone (44) side is provided with heating medium inlet (22), second exhanst gas outlet (19) connects air by pipeline and passes into valve (20), heat exchanger (21), heating medium inlet (22) and regenerator bed (44), running water pipe (23) is through heat exchanger (21), steam pipe (24) with add steam chest (36) and be connected, upper buffering area (41) is connected with sulfuric acid conversion device through ammonium sulfate outlet (30), lower buffering area (42) passes into mouth (32) through ammonia and is connected with ammonia access tube, cooling bed (45) passes into mouth (33) through air and is connected with cool air hose, the nitrogen mixing chamber (35) that active coke regeneration device (31) bottom is provided with is through adding steam chest (36), screening plant (34) and activated coke gathering-device (37) connect and compose.
2. according to Multifunctional smoke system for desulfuration and denitration according to claim 1, it is characterized in that, described rail type orifice plate (2) forms by being vertically welded with guide rail (47) arranged in parallel on fixing muscle (48), the cross section of guide rail is trapezoidal, trapezoidal minor face is welded on fixing muscle (48), spacing 3-the 5mm of guide rail (47), spacing 40-the 60mm of fixing muscle (48), the number of guide rail (47) and the number of fixing muscle (48) depend on the size of flue gas desulfurization and denitrification device.
3. according to Multifunctional smoke system for desulfuration and denitration according to claim 1, it is characterized in that, described charging motor-driven valve and blowing motor-driven valve automatic-switching type feed under the control of single-chip microcomputer, the first charging motor-driven valve (8) in elevating hopper A (10) and the second blowing motor-driven valve (7) in elevating hopper B (10) synchronously open and close, the second charging motor-driven valve (9) in elevating hopper B (10) and the first motor-driven valve (6) in elevating hopper A (10) synchronously open and close, when charging opened by the first charging motor-driven valve (8), the first motor-driven valve (6) cuts out, second motor-driven valve (7) is opened, elevating hopper B (10) is to desulphurization denitration bed (4) feed, when charging opened by the second charging motor-driven valve (9), the second motor-driven valve (7) cuts out, first motor-driven valve (6) is opened, by elevating hopper A (10) to desulphurization denitration bed (4) feed, overhead traveling crane (40) is to each elevating hopper (10) material loading, and each elevating hopper (10) is identical to the mode of each desulphurization denitration bed (4) feed.
4. according to Multifunctional smoke system for desulfuration and denitration according to claim 1, it is characterized in that, the width of described exhaust gases passes (5) is 1.1 times of desulphurization denitration bed (4) width.
5. according to Multifunctional smoke system for desulfuration and denitration according to claim 1, it is characterized in that, described heat carrier is heat smoke, hot water, steam or hot blast, is directly quote boiler hot flue gas.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420506742.7U CN204159214U (en) | 2014-09-03 | 2014-09-03 | Multifunctional smoke system for desulfuration and denitration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420506742.7U CN204159214U (en) | 2014-09-03 | 2014-09-03 | Multifunctional smoke system for desulfuration and denitration |
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| CN204159214U true CN204159214U (en) | 2015-02-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289103A (en) * | 2014-09-03 | 2015-01-21 | 长春天工环境系统有限公司 | Multifunctional flue gas desulfurization and denitration system and desulfurization and denitration method |
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2014
- 2014-09-03 CN CN201420506742.7U patent/CN204159214U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289103A (en) * | 2014-09-03 | 2015-01-21 | 长春天工环境系统有限公司 | Multifunctional flue gas desulfurization and denitration system and desulfurization and denitration method |
| CN104289103B (en) * | 2014-09-03 | 2016-06-22 | 长春天工环境系统有限公司 | Multifunctional smoke system for desulfuration and denitration and desulfurization denitration method |
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