CN116672879A - Flue gas treatment system of glass kiln - Google Patents
Flue gas treatment system of glass kiln Download PDFInfo
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- CN116672879A CN116672879A CN202310970801.XA CN202310970801A CN116672879A CN 116672879 A CN116672879 A CN 116672879A CN 202310970801 A CN202310970801 A CN 202310970801A CN 116672879 A CN116672879 A CN 116672879A
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- flue gas
- waste heat
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- heat recovery
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 147
- 239000003546 flue gas Substances 0.000 title claims abstract description 147
- 239000011521 glass Substances 0.000 title claims abstract description 35
- 239000000428 dust Substances 0.000 claims abstract description 142
- 239000002918 waste heat Substances 0.000 claims abstract description 125
- 238000011084 recovery Methods 0.000 claims abstract description 72
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 54
- 230000023556 desulfurization Effects 0.000 claims abstract description 54
- 238000004519 manufacturing process Methods 0.000 claims abstract description 27
- 239000007789 gas Substances 0.000 claims description 55
- 230000003009 desulfurizing effect Effects 0.000 claims description 48
- 238000005507 spraying Methods 0.000 claims description 45
- 239000003795 chemical substances by application Substances 0.000 claims description 38
- 238000003860 storage Methods 0.000 claims description 30
- 238000007664 blowing Methods 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 23
- 239000000779 smoke Substances 0.000 claims description 23
- 238000002156 mixing Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 15
- 238000000746 purification Methods 0.000 claims description 12
- 238000005265 energy consumption Methods 0.000 claims description 11
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 230000003197 catalytic effect Effects 0.000 claims description 7
- 238000004422 calculation algorithm Methods 0.000 claims description 5
- 241000208125 Nicotiana Species 0.000 claims description 4
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 4
- 239000007795 chemical reaction product Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 17
- 230000007613 environmental effect Effects 0.000 abstract description 11
- 239000007921 spray Substances 0.000 description 20
- 238000001035 drying Methods 0.000 description 9
- 238000004134 energy conservation Methods 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 5
- 230000010354 integration Effects 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
- B01D53/83—Solid phase processes with moving reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
Abstract
The application relates to a flue gas treatment system of a glass kiln, which comprises a dry desulfurization tower, dust-removing and denitration integrated equipment, a waste heat utilization equipment set and an emission chimney which are sequentially connected, wherein the dry desulfurization tower is connected with the glass kiln, the dry desulfurization tower, the dust-removing and denitration integrated equipment, the waste heat utilization equipment set and the emission chimney are jointly connected with a flue gas treatment controller, the flue gas treatment controller obtains a production plan to control the dry desulfurization tower and the dust-removing and denitration integrated equipment to carry out desulfurization and denitration dust removal treatment on flue gas discharged by the glass kiln, generates a flue gas waste heat recovery decision based on the production plan, controls the waste heat utilization equipment set to carry out waste heat recovery on purified flue gas, and then discharges the flue gas through the emission chimney. The application has the effects of green, energy saving and environmental protection and improves the flue gas treatment efficiency.
Description
Technical Field
The application relates to the field of flue gas treatment, in particular to a flue gas treatment system of a glass kiln.
Background
The glass industry is a typical gas pollution industry. Alkaline dust in glass kiln flue gas has strong moisture absorption and viscosityLarge inlet SO 2 、NO x The concentration is high, the problems of catalyst dust accumulation, abrasion, poisoning failure, easy bag dressing of a conventional cloth bag, high running resistance and the like are easily caused.
The existing glass fume treatment process comprises the following steps: glass kiln-waste heat boiler-SCR denitration-semi-dry desulfurization-cloth bag dust removal-discharge. The main problems of the process route are as follows:
1. the waste heat boiler is influenced by dust, the heat exchange tube is easy to block, and the failure rate of the waste heat boiler is high;
2. in the high dust area of SCR, the catalyst is easy to block and abrade, the ammonia escape amount is large, and the service life of the catalyst is greatly reduced;
3. if the working condition is unstable, the temperature of the bag area may be over-temperature, and the service life of the cloth bag is affected;
4. the humidity of flue gas is increased after semi-dry desulfurization, the viscosity of dust is increased, the bag of the bag-type dust collector is easy to apply, and the running resistance is high.
To the related art among the above-mentioned, in the current glass flue gas treatment process, waste heat recovery equipment receives the influence of dust to lead to the heat exchange tube to block up easily, causes flue gas treatment efficiency lower and influences equipment life.
Disclosure of Invention
In order to solve the problems that in the existing glass flue gas treatment process, waste heat recovery equipment is influenced by dust to cause easy blockage of a heat exchange tube, so that the flue gas treatment efficiency is low and the service life of the equipment is influenced, the application provides a flue gas treatment system of a glass kiln.
In a first aspect, the application provides a flue gas treatment system of a glass kiln, which adopts the following technical scheme:
the utility model provides a flue gas processing system of glass kiln, includes dry process desulfurizing tower, dust removal denitration integration equipment, waste heat utilization equipment group and the emission chimney that connects gradually, dry process desulfurizing tower, dust removal denitration integration equipment, waste heat utilization equipment group and emission chimney are connected with the flue gas processing controller jointly, the flue gas processing controller obtains production plan control dry process desulfurizing tower and dust removal denitration integration equipment and carries out desulfurization, denitration dust removal to glass kiln exhaust flue gas to generate flue gas waste heat recovery decision based on the production plan, control waste heat utilization equipment group carries out waste heat recovery to the flue gas after the purification, the rethread emission chimney discharges.
Preferably, the dry desulfurization tower comprises a tower body, an ash storage chamber, a gas mixing chamber and a spraying assembly, wherein the ash storage chamber, the gas mixing chamber and the spraying assembly are sequentially arranged in the tower body from bottom to top, a smoke inlet pipe is arranged at the bottom of the tower body, and a smoke outlet pipe is arranged at the top of the tower body; the flue gas outlet pipe is communicated with the dedusting and denitration integrated equipment, the flue gas inlet pipe is communicated with the ash storage chamber, and the ash storage chamber is used for storing residual desulfurizing agent sprayed by the spraying assembly and a reaction product of flue gas and the desulfurizing agent.
Preferably, a plurality of cyclone assemblies are arranged in the gas mixing chamber, and the cyclone assemblies are sequentially arranged in the gas mixing chamber along the vertical direction; the cyclone assembly comprises a cyclone cylinder body, a plurality of cyclone blades and a connecting column, wherein the cyclone blades are obliquely arranged, one ends of the cyclone blades are fixedly connected with the inner wall of the cyclone cylinder body, and the other ends of the cyclone blades are fixedly connected with the inner wall of the connecting column; the spraying component comprises a plurality of groups of spraying components, and the spraying components are in one-to-one correspondence with the cyclone components.
Preferably, the spraying component comprises a spraying main pipe and a plurality of spraying branch pipes, a plurality of spraying spray heads are arranged at the end parts of the spraying branch pipes, the spraying spray heads are all arranged towards the swirl blades, and the direction of the desulfurizing agent sprayed by the spraying spray heads is opposite to the flow direction of the flue gas.
Preferably, the dust storage room rotates and is provided with the dust impeller, the dust impeller includes wheel body and a plurality of blade, and a plurality of the blade all is provided with the cambered surface that faces wind towards one side of advancing the tobacco pipe, and the one side of advancing the tobacco pipe dorsad all is provided with the dust scoop that is used for the raise dust.
Preferably, the integrated dust and denitration device comprises a shell, a dust removal plate and a denitration catalytic layer, wherein a dust removal and denitration cavity is formed in the shell, the dust removal plate is arranged in the shell and divides the dust removal and denitration cavity into a purification cavity at the upper part and a dust removal cavity at the lower part, the denitration catalytic layer is positioned in the purification cavity, a smoke outlet pipe of the dry desulfurization tower is communicated with the dust removal cavity, and an ash bucket is arranged at the bottom of the dust removal cavity; the dust removal plate is provided with a plurality of metal filter bags for filtering dust and desulfurizing agents, and the metal filter bags are all positioned in the dust removal cavity.
Preferably, the dust removal denitration intracavity is installed the deashing subassembly, the deashing subassembly includes vibrating motor and jetting dust remover, vibrating motor installs and is used for driving dust removal board and metal mesh vibration on the dust removal board, jetting dust remover installs in purifying the intracavity, and the setting of orientation dust removal board.
Preferably, the blowing dust remover comprises a plurality of rotary blowing devices, the rotary blowing devices are in one-to-one correspondence with the metal filter bags, and the rotary blowing devices perform rotary pulse blowing dust removal on the metal filter bags.
Preferably, the flue gas treatment controller generates a flue gas waste heat recovery decision based on a production plan, and controls the waste heat utilization equipment group to perform waste heat recovery on the purified flue gas, and specifically comprises the following steps:
the flue gas treatment controller acquires a production plan, and determines high-temperature gas emission information based on production plan simulation, wherein the high-temperature gas emission information comprises high-temperature gas emission amount and emission temperature;
the flue gas treatment controller obtains user waste heat recovery requirements, wherein the user waste heat recovery requirements comprise at least one energy-saving requirement;
determining corresponding waste heat recovery devices in the waste heat utilization equipment group based on the waste heat recovery requirement of a user, and acquiring process flow information of each waste heat recovery device, wherein the process flow information comprises required gas temperature information and exhaust gas temperature information;
generating a flue gas waste heat recovery decision according to the high-temperature gas emission information and the user waste heat recovery requirement plan, wherein the waste heat recovery decision comprises waste heat recovery control parameters and a waste heat recovery flow of at least one waste heat utilization device;
and controlling the waste heat utilization equipment group to carry out waste heat recovery on the purified flue gas based on the decision of flue gas waste heat recovery.
Preferably, the generating the flue gas waste heat recovery decision according to the high-temperature gas emission information and the user waste heat recovery requirement plan specifically includes the following steps:
each energy-saving requirement in the waste heat recovery requirements of the user is respectively ordered based on energy consumption, cost saving and life production requirement level, and an energy consumption sequence, a cost saving sequence and a requirement level sequence are generated; generating energy consumption sequence scores, cost saving sequence scores and demand grade sequence scores of all energy saving demands through a preset sequence score comparison table; wherein the life production demand level of each energy-saving demand is set by a manager;
acquiring energy-saving preference of a user, taking any sequence as a highest priority sequence based on the energy-saving preference of the user, and taking the rest sequences as secondary priority sequences;
calculating the energy-saving scoring value of each energy-saving requirement through a preset energy-saving scoring calculation formula;
and generating a smoke waste heat recovery decision with the maximum energy-saving demand quantity and the highest sum of the energy-saving scoring values under the same energy-saving demand quantity by planning through a dynamic planning algorithm based on the high-temperature gas emission information and the energy-saving scoring values of all the energy-saving demands.
In summary, the present application includes at least one of the following beneficial technical effects:
through the arrangement of the dry desulfurization tower and the dust removal and denitration integrated equipment, the high-temperature flue gas led out of the glass kiln is desulfurized through the dry desulfurization tower, clean flue gas is obtained through dust removal and denitration of the dust removal and denitration integrated equipment, the flue gas treatment controller determines the flue gas amount based on a production plan, the clean flue gas is reasonably distributed according to the waste heat recovery requirement of a user, the high-temperature flue gas is recycled in each preheating equipment of a waste heat utilization equipment group, and then the high-temperature flue gas is led into an emission chimney for emission, so that the occurrence of equipment fault blocking phenomenon caused by direct waste heat utilization of the flue gas can be avoided, the high-temperature flue gas is properly treated and efficiently utilized, the environmental protection and energy conservation are realized, and the effects of environmental protection, energy conservation and environmental protection and improvement of the flue gas treatment efficiency are achieved;
through the arrangement of the ash storage chamber and the spraying assembly, high-temperature flue gas led out of the glass kiln enters from the bottom of the dry desulfurization tower, contacts with residual desulfurizing agent in the ash storage chamber, performs pre-desulfurization, is fully mixed with the desulfurizing agent sprayed by the spraying assembly in the gas mixing chamber, effectively removes sulfide in the flue gas, is beneficial to improving the dry desulfurization efficiency of the flue gas, realizes the secondary utilization of the residual desulfurizing agent, saves the desulfurization cost, and achieves the effects of effectively improving the desulfurization efficiency of the flue gas and reducing the desulfurization cost of the flue gas;
through the setting of raise dust impeller, the high temperature flue gas that the glass furnace draws out gets into from dry process desulfurization tower bottom, contacts with the interior remaining desulfurizing agent of ash storage, carries out the desulfurization in advance, and the flue gas that gets into ash storage room simultaneously contacts with the blade of raise dust impeller, blows to the cambered surface that faces the wind, drives the raise dust impeller and rotates, and the raise dust spoon of raise dust impeller digs the desulfurizing agent in the ash storage room along with the blade rotation in-process to rotate along with the raise dust impeller and raise, have further to improve the flue gas that gets into in the ash storage room and the interior remaining desulfurizing agent's of ash storage area of contact, help improving desulfurization efficiency in advance.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a flue gas treatment system in accordance with an embodiment of the present application;
FIG. 2 is a system block diagram of a flue gas treatment system in an embodiment of the application;
FIG. 3 is a schematic cross-sectional view of a dry desulfurizing tower according to an embodiment of the present application;
FIG. 4 is a schematic top view of a swirl assembly according to an embodiment of the present application;
FIG. 5 is a schematic view of the bottom construction of the spray member in an embodiment of the application;
FIG. 6 is a schematic view of a dust impeller according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a dust removal and denitration integrated device in an embodiment of the present application;
FIG. 8 is a flow chart of a method for recovering waste heat from purified flue gas in an embodiment of the application;
fig. 9 is a flow chart of a method of generating a waste heat recovery decision in an embodiment of the application.
Reference numerals illustrate: 1. a dry desulfurizing tower; 11. a tower body; 111. a smoke inlet pipe; 112. a smoke outlet pipe; 12. an ash storage chamber; 13. a gas mixing chamber; 14. a spray assembly; 141. a spraying part; 142. a spraying main pipe; 143. spraying branch pipes; 144. spraying a spray nozzle; 15. a swirl assembly; 151. a swirl cylinder; 152. swirl vanes; 153. a connecting column; 16. a dust impeller; 161. a wheel body; 162. a blade; 163. a windward cambered surface; 164. a dust raising spoon; 2. dust removal and denitration integrated equipment; 21. a housing; 211. a dust removal and denitration cavity; 212. a purification chamber; 213. a dust removal cavity; 214. an ash bucket; 22. a dust removal plate; 221. a metal filter bag; 23. a pin removal catalytic layer; 24. an ash removal component; 241. a vibration motor; 242. blowing dust remover; 243. a rotary blowing device; 3. a waste heat utilization device group; 4. a discharge chimney; 5. and a flue gas treatment controller.
Detailed Description
The application is described in further detail below with reference to fig. 1-9.
The embodiment of the application discloses a flue gas treatment system of a glass kiln. Referring to fig. 1 and 2, a flue gas treatment system of a glass kiln comprises a dry desulfurization tower 1, dust removal and denitration integrated equipment 2, a waste heat utilization equipment group 3 and an emission chimney 4 which are sequentially connected. The dry desulfurization tower 1 is connected with a glass kiln. The dry desulfurization tower 1, the dust removal and denitration integrated equipment 2, the waste heat utilization equipment group 3 and the discharge chimney 4 are connected with a flue gas treatment controller 5. The flue gas treatment controller 5 obtains a production plan to control the dry desulfurization tower 1 and the dust removal and denitration integrated equipment 2 to carry out desulfurization, denitration and dust removal treatment on the flue gas discharged by the glass kiln, generates a flue gas waste heat recovery decision based on the production plan, controls the waste heat utilization equipment group 3 to carry out waste heat recovery on the purified flue gas, and then discharges the purified flue gas through the discharge chimney 4. Through the setting of dry process desulfurizing tower 1 and dust removal denitration integration equipment 2, the high temperature flue gas that the glass furnace introduced first carries out the desulfurization through dry process desulfurizing tower 1, at the dust removal denitration through dust removal denitration integration equipment 2, obtain clean flue gas, flue gas treatment controller 5 is based on the production plan and confirm the exhaust gas, according to the clean flue gas of user's waste heat recovery demand rational distribution, in the each preheating equipment of waste heat utilization equipment group 3, retrieve high temperature flue gas heat, reintroduce and discharge chimney 4 and discharge, can avoid the flue gas directly to send into waste heat utilization equipment in carry out waste heat utilization and lead to equipment trouble blocking phenomenon to take place, realize handling high-efficient use to high temperature flue gas properly, realize environmental protection and energy saving, reach green energy-concerving and environment-protective and improvement flue gas treatment efficiency's effect.
In addition, the waste heat utilization equipment group 3 comprises one or more of a waste heat steam power generation device, a waste heat exchange waterway heating device, a waste heat heating device and a waste heat combustion-supporting device. And setting according to the actual conditions of enterprises.
Referring to fig. 3, the dry desulfurization tower 1 includes a tower body 11, and an ash storage chamber 12, a gas mixing chamber 13, and a spraying assembly 14 for spraying a desulfurizing agent, which are sequentially disposed in the tower body 11 from bottom to top. The bottom of the tower body 11 is provided with a smoke inlet pipe 111, and the top is provided with a smoke outlet pipe 112. The smoke outlet pipe 112 is communicated with the dust removal and denitration integrated equipment 2, and the smoke inlet pipe 111 is communicated with the ash storage chamber 12. The ash storage compartment 12 is used for storing residual desulfurizing agent sprayed by the spraying assembly 14 and reaction products of flue gas and the desulfurizing agent. Through the setting of ash storage room 12 and spray assembly 14, the high temperature flue gas that the glass furnace draws out gets into from dry process desulfurizing tower 1 bottom, contacts with the interior remaining desulfurizing agent of ash storage room 12, carries out the desulfurization in advance, and then fully mixes in gaseous mixing chamber 13 with the desulfurizing agent that spray assembly 14 sprayed out, effectively desorption sulfide in the flue gas, helps improving flue gas dry process desulfurization efficiency, realizes spraying remaining desulfurizing agent reutilization, practices thrift the desulfurization cost, reaches the effect of effectively improving flue gas desulfurization efficiency and reducing flue gas desulfurization cost.
Referring to fig. 3 and 4, a plurality of cyclone assemblies 15 are provided in the gas mixing chamber 13, and the plurality of cyclone assemblies 15 are sequentially provided in the gas mixing chamber 13 in a vertical direction. The swirl assembly 15 includes a swirl cylinder 151, a plurality of swirl vanes 152, and a connecting post 153. The swirl vanes 152 are all inclined, and one ends of the swirl vanes 152 are fixedly connected with the inner wall of the swirl cylinder 151, and the other ends are fixedly connected with the inner wall of the connecting column 153. The spray assembly 14 includes a plurality of sets of spray members 141, the plurality of sets of spray members 141 being in one-to-one correspondence with the plurality of cyclone assemblies 15. Through the setting of swirl subassembly 15, when the flue gas passes through swirl barrel 151 in gas mixing chamber 13, the flue gas evenly distributed rises with higher speed under the effect of swirl blade 152 to with spray the high-speed rotary motion's that subassembly 14 sprayed on swirl blade 152 upper portion desulfurizing agent and take place violently to collide, desulfurizing agent and flue gas homogeneous mixing dispersion, high-speed motion's flue gas and desulfurizing agent provide continuous rotary power simultaneously, make the mixing constantly go on, increased the area of contact of flue gas and desulfurizing agent and mixed more evenly, reach the effect of effectively improving flue gas desulfurization efficiency.
Referring to fig. 5, the spraying part 141 includes a spraying main pipe 142 and a plurality of spraying branch pipes 143, spraying spray heads 144 are provided at ends of the plurality of spraying branch pipes 143, the plurality of spraying spray heads 144 are all disposed toward the swirl vanes 152, and a direction in which the plurality of spraying spray heads 144 spray the desulfurizing agent is opposite to a flow direction of the flue gas. Through the setting of a plurality of spray branch pipes 143 and spray shower nozzle 144 for after flue gas evenly distributed rises with higher speed under the effect of swirl vane 152, the high-speed rotary motion's that sprays out by spray assembly 14 desulfurizing agent in swirl vane 152 upper portion bumps violently, helps flue gas and desulfurizing agent intensive and uniform mixing, reaches the effect that effectively improves flue gas desulfurization efficiency.
Referring to fig. 6, the dust storage chamber 12 is rotatably provided with a dust impeller 16, the dust impeller 16 includes a wheel body 161 and a plurality of blades 162, a windward cambered surface 163 is disposed on a side of the plurality of blades 162 facing the smoke inlet pipe 111, and a dust scoop 164 for dust is disposed on a side facing away from the smoke inlet pipe 111. Through the setting of raise dust impeller 16, the high temperature flue gas that the glass furnace draws out gets into from dry process desulfurizing tower 1 bottom, contacts with the residual desulfurizing agent in the ash storage room 12, carries out the pre-desulfurization, and the flue gas that gets into the ash storage room 12 simultaneously contacts with the blade 162 of raise dust impeller 16, blows to the windward cambered surface 163, drives raise dust impeller 16 and rotates, and raise dust impeller 16's raise dust spoon 164 digs the desulfurizing agent in the ash storage room 12 along with blade 162 rotation in-process to rotate with raise dust impeller 16 and raise, have the area of contact of the residual desulfurizing agent in further improvement entering ash storage room 12 and the ash storage room 12, help improving the pre-desulfurization efficiency.
Referring to fig. 7, the dust removal and denitration integrated apparatus 2 includes a housing 21, a dust removal plate 22, and a denitration catalyst layer 23. The shell 21 is internally provided with a dedusting and denitration cavity 211, the dedusting plate 22 is arranged in the shell 21 to divide the dedusting and denitration cavity 211 into an upper purifying cavity 212 and a lower dedusting cavity 213, and the denitration catalytic layer 23 is positioned in the purifying cavity 212. The smoke outlet pipe 112 of the dry desulfurization tower 1 is communicated with a dust removing cavity 213, and an ash bucket 214 is arranged at the bottom of the dust removing cavity 213. The dust removal plate 22 is mounted with a plurality of metal filter bags 221 for filtering dust and desulfurizing agents, and the plurality of metal filter bags 221 are located in the dust removal chamber 213. Among them, the metal filter bag 221 may employ a cylindrical filter bag, a nearly cylindrical pleated filter bag, a conical filter bag, or the like. The dust-containing flue gas after desulfurization in the dry desulfurization tower 1 is discharged into the dust-removing and denitration integrated equipment 2 through the smoke outlet pipe 112, part of larger dust particles naturally subside and directly fall into the ash bucket 214, other dust particles rise along with the air flow and enter the dust removing cavity 213, dust and the unreacted complete desulfurizing agent are intercepted by the metal filter bags 221 on the dust removing plate 22, a powder cake layer with a certain thickness is formed on the surface of the filter bags, the subsequent flue gas and the desulfurizing agent in the powder cake layer are subjected to desulfurization again, and the flue gas desulfurization efficiency is further improved. The other products after the purification and dust removal enter a purification cavity 212 and react with the denitration catalytic layer 23 to obtain clean high-temperature air. And then, the clean high-temperature flue gas is introduced into the waste heat recovery equipment for waste heat recovery, so that the occurrence of equipment fault blocking phenomenon caused by direct waste heat utilization of the flue gas can be avoided, the high-efficiency utilization of high-temperature flue gas is properly treated, the environmental protection and energy conservation are realized, and the effects of environmental protection, energy conservation and environmental protection are achieved, and the flue gas treatment efficiency is improved.
Referring to fig. 7, the dust removal and denitration chamber 211 is internally provided with a dust removal assembly 24, the dust removal assembly 24 comprises a vibration motor 241 and a blowing dust remover 242, the vibration motor 241 is arranged on the dust removal plate 22 for driving the dust removal plate 22 and the metal mesh to vibrate, and the blowing dust remover 242 is arranged in the purification chamber 212 and is arranged towards the dust removal plate 22. Through vibrating motor 241 and jetting dust remover 242's setting, vibrating motor 241 starts and drives dust collecting plate 22 vibration and make the powder cake layer that a plurality of metal filter bags 221 surface attached drop into ash bucket 214, and the jet of cooperation jetting dust remover 242 blasts simultaneously, can effectively clear up the dust on filter bag surface, guarantees the dust removal performance of metal filter bag 221, reaches the effect that improves flue gas treatment efficiency.
Referring to fig. 7, the blowing dust collector 242 includes a plurality of rotary blowing devices 243, the plurality of rotary blowing devices 243 are in one-to-one correspondence with the plurality of metal filter bags 221, and the plurality of rotary blowing devices 243 perform rotary pulse blowing dust cleaning on the metal filter bags 221. The metal filter bags 221 arranged in concentric circles are subjected to pulse blowing ash removal through nozzles below the blowing arms of the rotary blowing device 243. The rotary blowing device 243 is specifically configured in the prior art, and is not described here in detail. The rotary blowing device 243 includes a pulse valve, a gas tank, a gas inlet pipe, a drive pipe, a blowing arm, a nozzle, a branch pipe, a bottom support, a drive support, a motor and speed reducer, and a drive gear assembly. Through the setting of rotatory jetting device 243, realize 360 rotation jetting, further improve metal filter bag 221 self-cleaning efficiency, practice thrift the manpower and materials consumption of equipment maintenance.
The working flow of flue gas desulfurization, dust removal and denitration comprises the following steps: high-temperature flue gas led out of the glass furnace enters from the bottom of the dry desulfurization tower 1 through the smoke inlet pipe 111, contacts with residual desulfurizing agent in the ash storage chamber 12 under the assistance of the dust raising impeller 16, performs pre-desulfurization, and fully mixes the desulfurizing agent sprayed by the cyclone assembly 15 and the spraying assembly 14 in the gas mixing chamber 13 to effectively remove sulfide in the flue gas. The dust-containing flue gas after desulfurization in the desulfurizing tower is discharged into the dust-removing and denitration integrated equipment 2 through the smoke outlet pipe 112, part of larger dust particles naturally subside and directly fall into the ash bucket 214, other dust particles rise along with the airflow and enter the dust removing cavity 213, dust and the desulfurizing agent which is not completely reacted are intercepted by the metal filter bag 221 on the dust removing plate 22, a powder cake layer with a certain thickness is formed on the surface of the filter bag, and the subsequent flue gas and the desulfurizing agent in the powder cake layer are subjected to desulfurization again. The desulfurization product collected by the high temperature dust collector is discharged from the hopper 214 at the lower part of the dust collector and is transferred to the ash silo. The other products after the purification and dust removal enter a purification cavity 212 and react with the denitration catalyst layer 23 to obtain final high-temperature air. And then, the clean high-temperature flue gas is introduced into the waste heat recovery equipment for waste heat recovery, so that the occurrence of equipment fault blocking phenomenon caused by direct waste heat utilization of the flue gas can be avoided, the high-efficiency utilization of high-temperature flue gas is properly treated, the environmental protection and energy conservation are realized, and the effects of environmental protection, energy conservation and environmental protection are achieved, and the flue gas treatment efficiency is improved.
Referring to fig. 8, the flue gas treatment controller 5 generates a flue gas waste heat recovery decision based on a production plan, and controls the waste heat utilization device group 3 to perform waste heat recovery on the purified flue gas specifically includes the following steps:
a1, determining high-temperature gas emission information: the flue gas treatment controller 5 acquires a production plan, and determines high-temperature gas emission information based on production plan simulation, wherein the high-temperature gas emission information comprises high-temperature gas emission amount and emission temperature;
a2, obtaining the waste heat recovery requirement of a user: the flue gas treatment controller 5 obtains user waste heat recovery requirements, wherein the user waste heat recovery requirements comprise at least one energy-saving requirement;
a3, determining a waste heat recovery device: determining corresponding waste heat recovery devices in the waste heat utilization equipment group 3 based on the waste heat recovery requirement of the user, and acquiring process flow information of each waste heat recovery device, wherein the process flow information comprises required gas temperature information and exhaust gas temperature information;
a4, planning to generate a flue gas waste heat recovery decision: generating a flue gas waste heat recovery decision according to the high-temperature gas emission information and the user waste heat recovery requirement plan, wherein the waste heat recovery decision comprises waste heat recovery control parameters of at least one waste heat utilization device and a waste heat recovery flow;
a5, carrying out waste heat recovery on the purified flue gas: and controlling the waste heat utilization equipment group 3 to recycle waste heat of the purified flue gas based on the decision of flue gas waste heat recycling. Through the steps, the intelligent planning of the gas waste heat utilization scheme according to the actual production condition of a factory is realized, the efficient collection of gas is realized, the requirements of users are met as much as possible, the reasonable distribution of high-temperature gas is realized on the basis of meeting the requirements of the users, the optimal waste heat utilization effect of the high-temperature gas is achieved, the manpower and material resources are saved, and the effects of green and environment protection and improvement of the flue gas treatment efficiency are achieved.
Referring to fig. 9, the flue gas waste heat recovery decision generated according to the high temperature gas emission information and the user waste heat recovery requirement plan specifically includes the following steps:
b1, sequencing and scoring the energy-saving requirements: each energy-saving requirement in the waste heat recovery requirements of the user is respectively ordered based on energy consumption, cost saving and life production requirement level, and an energy consumption sequence, a cost saving sequence and a requirement level sequence are generated; generating energy consumption sequence scores, cost saving sequence scores and demand grade sequence scores of all energy saving demands through a preset sequence score comparison table; wherein the life production demand level of each energy-saving demand is set by a manager;
b2, determining the highest priority sequence: acquiring energy-saving preference of a user, taking any sequence as a highest priority sequence based on the energy-saving preference of the user, and taking the rest sequences as secondary priority sequences;
b3, calculating energy-saving scoring values of the energy-saving requirements: calculating the energy-saving scoring value of each energy-saving requirement through a preset energy-saving scoring calculation formula;
and B4, planning and generating a waste heat recovery decision through a dynamic planning algorithm: and generating a smoke waste heat recovery decision with the maximum energy-saving demand quantity and the highest sum of the energy-saving scoring values under the same energy-saving demand quantity by planning through a dynamic planning algorithm based on the high-temperature gas emission information and the energy-saving scoring values of all the energy-saving demands. Through the steps, the energy consumption, the cost saving and the life production demand level of each energy-saving demand are ordered based on the energy consumption of the demand under normal conditions, the energy-saving demand of a user is met on the basis of accurately calculating the energy-saving score of each energy-saving demand, various gas waste heat utilization schemes are generated through traversal based on high-temperature gas emission information and the energy-saving score value of each energy-saving demand through a dynamic programming algorithm, the gas waste heat utilization scheme with the highest sum of the energy-saving scores is selected on the basis of selecting the gas waste heat utilization scheme with the largest energy-saving demand, the intelligent accurate gas waste heat utilization scheme is realized, manpower and material resources are saved, reasonable distribution and full waste heat utilization are realized on produced high-temperature gas, the optimal waste heat utilization effect of the high-temperature gas is achieved, manpower and material resources are saved, and the green and environment-friendly effect is achieved.
The preset energy-saving score calculation formula specifically comprises the following steps:
；
wherein the method comprises the steps ofEnergy saving scoring for the ith energy saving demand; />Scoring the highest priority sequence of the ith energy saving demand; />Sum of the sub-priority sequence scores for the ith energy saving requirement; />Scoring coefficients for the highest priority sequences;scoring coefficients for the sub-priority sequences; and->And->Are set by the manager.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the scope of the present application. It will be apparent that the described embodiments are merely some, but not all, embodiments of the application. Based on these embodiments, all other embodiments that may be obtained by one of ordinary skill in the art without inventive effort are within the scope of the application. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art may still combine, add or delete features of the embodiments of the present application or make other adjustments according to circumstances without any conflict, so as to obtain different technical solutions without substantially departing from the spirit of the present application, which also falls within the scope of the present application.
Claims (6)
1. A flue gas treatment system of glass kiln, its characterized in that: the device comprises a dry desulfurization tower (1), a dedusting and denitration integrated device (2), a waste heat utilization device group (3) and an emission chimney (4) which are sequentially connected, wherein the dry desulfurization tower (1) is connected with a glass kiln, the dry desulfurization tower (1), the dedusting and denitration integrated device (2), the waste heat utilization device group (3) and the emission chimney (4) are commonly connected with a flue gas treatment controller (5), the flue gas treatment controller (5) obtains a production plan to control the dry desulfurization tower (1) and the dedusting and denitration integrated device (2) to carry out desulfurization and denitration dust removal treatment on flue gas exhausted by the glass kiln, generates a flue gas waste heat recovery decision based on the production plan, controls the waste heat utilization device group (3) to carry out waste heat recovery on purified flue gas, and then discharges the flue gas through the emission chimney (4);
the dry desulfurization tower (1) comprises a tower body (11), an ash storage chamber (12), a gas mixing chamber (13) and a spraying assembly (14) for spraying desulfurizing agents, wherein the ash storage chamber (12), the gas mixing chamber (13) and the spraying assembly (14) are sequentially arranged in the tower body (11) from bottom to top, a smoke inlet pipe (111) is arranged at the bottom of the tower body (11), and a smoke outlet pipe (112) is arranged at the top of the tower body; the smoke outlet pipe (112) is communicated with the dedusting and denitration integrated equipment (2), the smoke inlet pipe (111) is communicated with the ash storage chamber (12), and the ash storage chamber (12) is used for storing residual desulfurizing agent sprayed by the spraying component (14) and a reaction product of the flue gas and the desulfurizing agent;
a plurality of cyclone assemblies (15) are arranged in the gas mixing chamber (13), and the cyclone assemblies (15) are sequentially arranged in the gas mixing chamber (13) along the vertical direction; the cyclone assembly (15) comprises a cyclone cylinder (151), a plurality of cyclone blades (152) and a connecting column (153), wherein the cyclone blades (152) are obliquely arranged, one ends of the cyclone blades (152) are fixedly connected with the inner wall of the cyclone cylinder (151), and the other ends of the cyclone blades are fixedly connected with the inner wall of the connecting column (153); the spraying assembly (14) comprises a plurality of groups of spraying components (141), and the spraying components (141) are in one-to-one correspondence with the cyclone assemblies (15);
the spraying component (141) comprises a spraying main pipe (142) and a plurality of spraying branch pipes (143), the ends of the spraying branch pipes (143) are provided with spraying nozzles (144), the spraying nozzles (144) are all arranged towards the swirl blades (152), and the direction of the desulfurizing agent sprayed by the spraying nozzles (144) is opposite to the flow direction of the flue gas;
the dust storage chamber (12) rotates and is provided with dust impeller (16), dust impeller (16) are including wheel body (161) and a plurality of blade (162), and a plurality of blade (162) all are provided with windward cambered surface (163) towards one side of advancing tobacco pipe (111), and one side of advancing tobacco pipe (111) dorsad all is provided with dust scoop (164) that are used for the dust.
2. A flue gas treatment system for a glass kiln according to claim 1, wherein: the dust removal and denitration integrated equipment (2) comprises a shell (21), a dust removal plate (22) and a denitration catalytic layer (23), wherein a dust removal and denitration cavity (211) is formed in the shell (21), the dust removal plate (22) is arranged in the shell (21) and divides the dust removal and denitration cavity (211) into a purification cavity (212) at the upper part and a dust removal cavity (213) at the lower part, the denitration catalytic layer (23) is positioned in the purification cavity (212), a smoke outlet pipe (112) of the dry desulfurization tower (1) is communicated with the dust removal cavity (213), and an ash bucket (214) is arranged at the bottom of the dust removal cavity (213); the dust removing plate (22) is provided with a plurality of metal filter bags (221) for filtering dust and desulfurizing agents, and the metal filter bags (221) are positioned in the dust removing cavity (213).
3. A flue gas treatment system for a glass kiln according to claim 2, wherein: the dust removal denitration chamber (211) is internally provided with a dust removal component (24), the dust removal component (24) comprises a vibrating motor (241) and a jetting dust remover (242), the vibrating motor (241) is arranged on the dust removal plate (22) and used for driving the dust removal plate (22) and the metal mesh to vibrate, and the jetting dust remover (242) is arranged in the purification chamber (212) and is arranged towards the dust removal plate (22).
4. A flue gas treatment system for a glass kiln according to claim 3, wherein: the blowing dust remover (242) comprises a plurality of rotary blowing devices (243), the rotary blowing devices (243) are in one-to-one correspondence with the metal filter bags (221), and the rotary blowing devices (243) are used for carrying out rotary pulse blowing dust removal on the metal filter bags (221).
5. The flue gas treatment system of a glass kiln according to claim 1, wherein the flue gas treatment controller (5) generates a flue gas waste heat recovery decision based on a production plan, and the control of the waste heat utilization equipment group (3) to perform waste heat recovery on the purified flue gas specifically comprises the following steps:
the flue gas treatment controller (5) acquires a production plan, and determines high-temperature gas emission information based on production plan simulation, wherein the high-temperature gas emission information comprises high-temperature gas emission amount and emission temperature;
the flue gas treatment controller (5) obtains user waste heat recovery requirements, wherein the user waste heat recovery requirements comprise at least one energy-saving requirement;
determining corresponding waste heat recovery devices in the waste heat utilization equipment group (3) based on the waste heat recovery requirement of a user, and acquiring process flow information of each waste heat recovery device, wherein the process flow information comprises required gas temperature information and exhaust gas temperature information;
generating a flue gas waste heat recovery decision according to the high-temperature gas emission information and the user waste heat recovery requirement plan, wherein the waste heat recovery decision comprises waste heat recovery control parameters and a waste heat recovery flow of at least one waste heat utilization device;
and controlling the waste heat utilization equipment group (3) to recycle the waste heat of the purified flue gas based on the decision of flue gas waste heat recycling.
6. The flue gas treatment system of a glass kiln according to claim 5, wherein the flue gas waste heat recovery decision generated according to the high temperature gas emission information and the user waste heat recovery requirement plan specifically comprises the following steps:
each energy-saving requirement in the waste heat recovery requirements of the user is respectively ordered based on energy consumption, cost saving and life production requirement level, and an energy consumption sequence, a cost saving sequence and a requirement level sequence are generated; generating energy consumption sequence scores, cost saving sequence scores and demand grade sequence scores of all energy saving demands through a preset sequence score comparison table; wherein the life production demand level of each energy-saving demand is set by a manager;
acquiring energy-saving preference of a user, taking any sequence as a highest priority sequence based on the energy-saving preference of the user, and taking the rest sequences as secondary priority sequences;
calculating the energy-saving scoring value of each energy-saving requirement through a preset energy-saving scoring calculation formula;
and generating a smoke waste heat recovery decision with the maximum energy-saving demand quantity and the highest sum of the energy-saving scoring values under the same energy-saving demand quantity by planning through a dynamic planning algorithm based on the high-temperature gas emission information and the energy-saving scoring values of all the energy-saving demands.
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