CN206081957U - Coal -fired flue gas is handled with parallelly connected treater of collection dirt chemistry catalysis - Google Patents

Abstract

The utility model discloses a coal -fired flue gas is handled with parallelly connected treater of collection dirt chemistry catalysis, include the pulsed dust collector, dry -type chemistry catalytic processor, the draught fan that connect gradually through the pipeline, pulsed dust collector includes square casing, installs in the ash bucket of square casing below, and the ash bucket below is equipped with receives grey car, square casing bottom surface opening, the lateral wall is equipped with central controller and gas pressure display, the ash bucket bottom is equipped with dust outlet, and the lateral wall is equipped with vibrating device, and inside is equipped with high material level detection device, dry -type chemistry catalytic processor includes hollow shell, catalytic treatment box, atomizer, the catalytic treatment box is located inside the hollow shell, catalytic treatment box top has connect the atomizer, through atomizing pipe intercommunication between atomizer and the atomizer. Coal -fired flue gas process the utility model discloses handle the back, each item index is all satisfied completely, and " (GB 13271 for boiler atmospheric pollutants emission standard 2014 ).

Description

Coal-fired flue-gas process dust chemical catalysis parallel processors

Technical field

The utility model belongs to field of environment protection equipment, and in particular to a kind of coal-fired flue-gas process in parallel with dust chemical catalysis Processor, can be used for coal burning boiler dedusting of burning.

Background technology

With the development of modern industry, dust is increasingly serious to the impact caused by the health of environment and the mankind, effectively Dust pollution is administered, in recent years Environmental protection pay attention to day by day and global warming phenomenon are serious, in order to advocate carbon reduction, Environmental protection industry flourishes, and purifies the living environment of the mankind, it has also become proprietary common recognition.In order to safeguard that production environment is clean, Must clear up in time by the place of dust pollution.Deduster, especially sack cleaner, are widely used in metallurgy, building materials, machine In the various udst separations of industrial and mining enterprises' non-fiber industrial dust such as tool, chemical industry, mine and the recovery of material.But, it is existing Sack cleaner, has the drawbacks such as ash-removal effect is undesirable, purification efficiency is low, life-span of the filter bag is short, maintenance load is big, seriously Normal, the effective use of filter is have impact on, so, need badly and the structure of existing filter is improved so that deashing side Just, efficiency high, needs using blowning installation to filter deashing, to improve dust removing effects.

Burning coal burning boiler, is designed as burning coal, foundation《Emission standard of air pollutants for boilers (GB 13271-2014), To meet environmental requirement, it is ensured that harmful substance nitrogen oxides and sulfide emission reach regulatory emissions standards, need to design flue gas Dedusting, denitration and desulfurization process system.The enterprise that China presently, there are small scale is a lot, processes the economic strength and technology of the three wastes Level is relatively low, and very big harm is caused to environment；The world today faces the severe challenge for asking financial crisis and climate change entirely, must Scientific and technical innovation development low-carbon economy must be continued to rely upon, realizes that environmental economy is advanced altogether.

The content of the invention

The purpose of this utility model is to provide a kind of coal-fired flue-gas process dust chemical catalysis parallel processors, for firing Coal fired boiler dedusting, is conducive to environmentally friendly development.

To reach above-mentioned utility model purpose, the technical solution adopted in the utility model is：A kind of coal-fired flue-gas are processed to be used Dust chemical catalysis parallel processors, including pulsed precipitron, dry chemical Catalytic processor, air-introduced machine；The pulsed Precipitron, dry chemical Catalytic processor, air-introduced machine are sequentially connected by pipeline；The pulsed precipitron includes square shell Body, ash bucket；The ash bucket is installed on square casing lower section；Square casing bottom surface opening；The ash bucket top surface opening；It is described Square casing is connected with ash bucket；The square casing inside is installed by filter；The hopper bottom is provided with dust outlet；It is described dry Formula chemical catalysis processor includes hollow housing, catalytic treatment box, atomizer；The catalytic treatment box is located in hollow housing Portion；The catalytic treatment box top is connected to atomizer；Connected by mist pipe between the atomizer and atomizer；It is described Hollow shell body sidewall is provided with blast pipe；On the hollow housing, the side wall relative with the side wall for being provided with blast pipe is provided with discharge pipe.

In the utility model, filter is generally filter bag, including the bag body of supporter and parcel supporter, Ke Yiwei Existing non-woven fabrics filter bag, fabric filter bag, it is generally circular；Supporter typically adopts elastic piston ring, can form tight type and connect Touch, it is to avoid smoke spillage；Filter bag upper end is arranged on filter support seat, and lower end is arranged on filter lower wall, can be connected Filter upper lower burrs.Square casing has six side walls, and diapire is hatch frame, is connected with ash bucket, in four side walls, symmetrical Two side walls on be respectively provided with air intake and air-out, combined with pipeline for air-flow operation；Another two side wall is typically sealed；Air Entered by the air intake of housing, gone out from air-out, middle through filter, dust is intercepted by filter and adsorbed, so as to reach flue gas The effect of dedusting；Using the housing of square structure, be on the one hand conducive to the installation of the parts such as filter, mainly avoid gas leakage, Prevent partial fume from directly going out from air outlet without filter.Due to coal-fired flue-gas it is awfully hot, in order to prevent flue gas temperature Spend height and damage filter, the utility model sets on the pipeline between pulsed precipitron, dry chemical Catalytic processor There is temperature sensor, its temperature probe is located in pipeline, is specifically installed on which surface side wall is not then limited, and determines according to actual place It is fixed, inside smoke temperature can be monitored, temperature sensor is commercial products.

Adsorbent is provided with inside the utility model dry chemical Catalytic processor, its preparation can be by polyoxyethylene nonyl phenyl second Alkene ether mixes with sodium silicoaluminate, disodium hydrogen phosphate, uramit, butyl acrylate, and 120 DEG C of process are sticked for 65 minutes Fluid；By five nitric hydrate bismuths, nickel oxide, hexadecyltrimethylammonium chloride, diethyl phosphite, the different sour alkynes third of bromo fourth Ester, polyvinyl butyral resin mixing；Insert in Muffle furnace after ball mill ball milling 4h, 700～800 DEG C sintering 45 minutes after 1100～ 1200 DEG C sinter 15 minutes；Then porous material is obtained after natural cooling；Porous material is immersed containing ABVN 5 minutes in methyl alcohol；Then drying obtains solid；Powder is obtained after solid is crushed；Powder is added to the water, is stirred 20 minutes； Glutinous fluid, double (2,3- epoxy cyclopentyl) ethers and the bromo- beta naphthals of 1-, shitosan, ethanol are subsequently adding, 150 DEG C of reactions 1 are little When；Last dry reaction liquid obtains solid, and with addition of dry type pressure ball after quick lime adsorbent is obtained.NPE, silicon Sodium aluminate, disodium hydrogen phosphate, uramit, the mass ratio of butyl acrylate are 1:（0.2～0.3）∶（0.3～0.35） ∶（0.5～0.7）∶（0.15～0.17）；Five nitric hydrate bismuths, nickel oxide, hexadecyltrimethylammonium chloride, phosphorous acid diethyl The different sour alkynes propyl ester of ester, bromo fourth, the mass ratio of polyvinyl butyral resin are（0.5～0.6）∶（0.1～0.12）∶（0.3～ 0.35）∶（0.5～0.7）∶（0.25～0.27）∶1；Porous material, the mass ratio of ABVN are（50～56）∶1；Powder End, glutinous fluid, double (2,3- epoxy cyclopentyls) ethers, the bromo- beta naphthals of 1-, the mass ratio of shitosan are（0.2～0.22）∶1∶ （0.3～0.35）∶（0.2～0.21）∶（0.1～0.11）.Solid, the mass ratio of quick lime are（0.7～0.8）∶1.To flue gas The each component of mixture has good absorption and reactivity, and after flue gas suction catalytic treatment box, chemosorbent will be produced with it Biochemical chemisorbed phenomenon, and make tail end discharge waste gas nitrogen, sulfide concentration less than national standard, to meet rules and regulations. The chemosorbent of adsorption saturation is under system not stopped status, then Jing water atomization catalyst reduction systems, by its automatic reduction, can Prolongation is persistently used；Chemically adsorbent into branch and object gas produces molecular link, comprising molecule and intermolecular model De Huali, and simple compound is formed, further up to adsorbing completely, object gas can not run away completely, be stuck in adsorbent point In sub-aperture structure.

In the utility model, position relationship is all virtual condition；Housing, ash bucket are all hollow-core construction, according to actual installation Position, ash bucket is installed on housing lower section, and ash bucket top surface size is in the same size with housing bottom surface, is all hatch frame, so as in housing Portion connects with ash bucket inside；Thus, the dust shaken off of filter bag that enclosure interior is installed can all directly under drop down onto ash bucket, no There is grey dead angle, then the dust outlet below ash bucket is collected and excluded, and the grey car of receipts can be provided with below ash bucket, beneficial to fortune It is defeated.Square casing side wall is provided with system controller and pneumatic indicator, and system controller is existing product, can be with control device Operation, pneumatic indicator can be pressure gauge, monitor housing pressure, it is ensured that safety, can control the gas pressure of whole process, Reach optimal filtration treatment effect.

In the utility model, filter is vertically installed at enclosure interior, forms smoke filtration layer, the installation number of filter Amount, arrangement mode can be selected according to housing size, filter size and flue gas flow, it is to avoid smoke spillage.

In the utility model, catalytic treatment box is the storage place of dry chemical adsorbent, and by porous material side wall is constituted For flue gas circulation；Air intake and air-out are respectively provided with two symmetrical side walls of hollow housing, are combined with pipeline for air-flow Operation；Another two side wall is typically sealed；Air is entered by the air intake of housing, is gone out from air-out, middle through catalytic treatment box, is changed Learn adsorbent will produce chemical reaction, chemisorbed phenomenon with flue gas, flue gas by catalytic treatment, so as to reach flue gas desulfurization and denitrification Effect, tail end discharge waste gas nitrogen, sulfide concentration be less than national standard, to meet rules and regulations.The chemistry suction of adsorption saturation Attached dose under system not stopped status, then Jing water atomization catalyst reduction system automatic reductions, and can extend and persistently use.

In the utility model, connected by mist pipe between atomizer and atomizer, so as to the steam after being atomized can be with Atomizer is delivered to from atomizer and is sprayed to catalytic treatment box again, reach the reduction to chemosorbent so that its table The solid catalysis product that face generates comes off, and spills new interface so as to can recycle；In the case of non-stop-machine can with Having a rest carries out atomization reduction, and atomization air flow can provide catalytic effect improves desulfurization off sulfide effect, and it is little that thermal current can take away surplus Water smoke；Restoring operation can also be carried out under stopped status, from blast pipe air intake, discharge pipe goes out, reach the effect for removing water smoke, It is preferred that blast pipe and discharge pipe are located at the cornerwise two ends of hollow housing, diagonal positions can reach optimal except fog effect； Blast pipe, discharge pipe are provided with valve, controllable switch；Hollow shell body sidewall is provided with pneumatic indicator, such as pressure gauge, monitors shell Body pressure, it is ensured that safety, can control the gas pressure of whole process, reach optimal catalytic treatment effect.Catalytic treatment box Enclosure interior is vertically installed at, flue gas adsorption layer is formed, its installation number, arrangement mode can be according to housing size, Yi Jiyan Throughput is selected, it is to avoid smoke spillage.

The utility model is provided with vibrating device in ash bucket lateral wall, can tap or rapping ash bucket, so as to be conducive to powder Dirt comes off, and is more easy to from dust outlet discharge；High charge level detection means is provided with inside ash bucket, it is to avoid dust accumulation.The utility model Disclosed ash bucket is truncated rectangular pyramids structure, and upper bottom surface is similar rectangle or square, and side is isosceles trapezoid, according to installation State, the upper bottom surface of ash bucket is consistent with housing bottom surface；For grey smooth, the no backup that falls, incline and the upper bottom surface of truncated rectangular pyramids Angle is 65～85 degree.Exhaust apparatus is chimney, and by inspection socket tail-gas quality detection can be carried out.

Because above-mentioned technical proposal is used, the utility model has compared with prior art following advantages：

1. the utility model makes public for the first time a kind of coal-fired flue-gas process dust chemical catalysis parallel processors, is exclusively used in Burning coal burning boiler dedusting, creatively arranges atomization in chemical catalysis processor and goes back original system, can not shut down realization chemistry and inhale Attached dose of reduction, also can shutdown operation；To extend chemically adsorbent use time, the water atomization catalyst reduction system of design exists In coal-burning boiler operating, control sprays into a small amount of aqueous vapor of atomization, and with chemosorbent chemical catalysis are produced, and makes chemosorbent also Original, to extend adsorbent saturation replacing construction the more environmentally friendly concept of energy-conservation is reached.

2. coal-fired flue-gas disclosed in the utility model are processed and use dust chemical catalysis parallel processors, and structure composition is reasonable, Dismounting is easy, is suitable for various parts；Chemosorbent purification facility is filled after smoke duster, processing nitrogen oxides and sulfide has Evil material；Dedusting recovery is carried out to flue gas using sack cleaner, up to PM2.5 discharge standards, is finally made most with chemosorbent Whole purify air is processed, and water atomization also original system is installed additional to guarantee to reach emission regulation demands in chemical catalysis processor, and can Extend chemosorbent use time to reduce discarded object, chemosorbent can process Litter not for alkalescence using burial mode Secondary public hazards can be caused；Solve existing water curtain sprinkling system and SCR metal solvents spray ammonia catalysis system process emission effect is poor Defect；Simultaneously service life of equipment is long, it is adaptable to high temperature, the dust removal process of Acidity of Aikalinity coal-fired flue-gas.

Description of the drawings

Fig. 1 is the structural representation of coal-fired flue-gas process dust chemical catalysis parallel processors；

Wherein, 1, dry chemical Catalytic processor；11st, hollow housing；12nd, catalytic treatment box；13rd, atomizer；14th, mist Change shower nozzle；15th, blast pipe；16th, discharge pipe；17th, pneumatic indicator；2nd, pulsed precipitron；21st, square casing；22nd, ash bucket； 221st, dust outlet；222nd, vibrating device；23rd, grey car is received；24th, system controller；25th, pneumatic indicator；26th, filter；3、 Air-introduced machine；4th, temperature sensor.

Specific embodiment

Below in conjunction with the accompanying drawings and embodiment is further described to the utility model：

Embodiment one

Referring to accompanying drawing 1, coal-fired flue-gas process includes dry chemical Catalytic processor with dust chemical catalysis parallel processors 1st, pulsed precipitron 2, air-introduced machine 3；Pulsed precipitron, dry chemical Catalytic processor, air-introduced machine are connected successively by pipeline Connect；Pulsed precipitron includes square casing 21, the ash bucket 22 being installed on below square casing, and ash bucket lower section is provided with the grey car of receipts 23；Ash bucket top surface opening, square casing bottom surface opening, connects with ash bucket；Square casing side wall be provided with system controller 24 and Pneumatic indicator 25, inside is installed by filter 26；Ash bucket is truncated rectangular pyramids structure, and incline is 85 degree with the angle of upper bottom surface；Ash bucket Bottom is provided with dust outlet 221, and lateral wall is provided with vibrating device 222, and inside is provided with high charge level detection means；Dry chemical is catalyzed Processor includes hollow housing 11, catalytic treatment box 12, atomizer 13；Catalytic treatment box is located inside hollow housing；At catalysis Reason box top is connected to atomizer 14；Connected by mist pipe between atomizer and atomizer；Hollow shell body sidewall be provided with into Airduct 15, the side wall relative with the side wall for being provided with blast pipe is provided with discharge pipe 16；Hollow shell body sidewall is provided with pneumatic indicator 17, Blast pipe is located at the cornerwise two ends of hollow housing with discharge pipe；Between dry chemical Catalytic processor 1, pulsed precipitron 2 Pipeline be provided with temperature sensor 4；Present processor also includes conventional smoke inlet outlet；In figure at same parts mark one, Conventional joint, installing plate are marked, and arrow is airflow direction.

Embodiment two

Coal-fired flue-gas process dust chemical catalysis parallel processors include the pulsed dust being sequentially connected by pipeline Machine, dry chemical Catalytic processor, air-introduced machine, pipeline lateral wall is provided with heat-insulation layer, and while section heat heat injury is avoided； Pulsed precipitron includes square casing, the ash bucket being installed on below square casing, and ash bucket lower section is provided with the grey car of receipts；Square casing Bottom surface opening, side wall is provided with system controller and pneumatic indicator；Ash bucket top surface opening, connects with ash bucket；In square casing Portion is installed by filter；Ash bucket is truncated rectangular pyramids structure, and incline is 65 degree with the angle of upper bottom surface；Hopper bottom is provided with dust outlet, Lateral wall is provided with vibrating device, and inside is provided with high charge level detection means；Dry chemical Catalytic processor includes hollow housing, catalysis Handle box, atomizer；Catalytic treatment box is located inside hollow housing；Catalytic treatment box top is connected to atomizer；Atomizer Connected by mist pipe between atomizer；Hollow shell body sidewall is provided with blast pipe, the side relative with the side wall for being provided with blast pipe Wall is provided with discharge pipe；Hollow shell body sidewall is provided with pneumatic indicator, and blast pipe is located at hollow housing cornerwise two with discharge pipe End；Pipeline between pulsed precipitron, dry chemical Catalytic processor is provided with temperature sensor.

Coal-fired flue-gas（165-200 degree）After heat exchange, enclosure interior is entered from square casing air intake, through filtering Device, carries out flue gas ash removal；Flue gas after dedusting enters dry type Catalytic processor, at desulphurization denitration under chemosorbent effect Reason, tail gas is discharged from air-introduced machine through chimney；According to temperature sensor flue-gas temperature can be prevented too high and damage filter, root According to the prompting of high charge level detection means, the vibrating device of ash bucket lateral wall is opened, accelerate the ash that falls；Going back original system using atomization can be with Catalytic chemistry adsorption reaction, increases adsorption effect, and indices all fully meet《Emission standard of air pollutants for boilers (GB 13271-2014)。

Claims (7)

1. a kind of coal-fired flue-gas are processed and use dust chemical catalysis parallel processors, including the catalysis of pulsed precipitron, dry chemical Processor, air-introduced machine；The pulsed precipitron, dry chemical Catalytic processor, air-introduced machine are sequentially connected by pipeline；It is described Pulsed precipitron includes square casing, ash bucket；The ash bucket is installed on square casing lower section；Open the square casing bottom surface Mouthful；The ash bucket top surface opening；The square casing is connected with ash bucket；The square casing inside is installed by filter；The ash Bucket bottom is provided with dust outlet；The dry chemical Catalytic processor includes hollow housing, catalytic treatment box, atomizer；It is described Catalytic treatment box is located inside hollow housing；The catalytic treatment box top is connected to atomizer；The atomizer and atomization Connected by mist pipe between device；The hollow shell body sidewall is provided with blast pipe；On the hollow housing, and blast pipe is provided with Wall relative side wall in side is provided with discharge pipe.

2. according to claim 1 coal-fired flue-gas are processed and use dust chemical catalysis parallel processors, it is characterised in that：The ash Bucket lower section is provided with the grey car of receipts.

3. according to claim 1 coal-fired flue-gas are processed and use dust chemical catalysis parallel processors, it is characterised in that：The ash Bucket lateral wall is provided with vibrating device；High charge level detection means is provided with inside the ash bucket.

4. according to claim 1 coal-fired flue-gas are processed and use dust chemical catalysis parallel processors, it is characterised in that：The side Shape housing sidewall is provided with system controller and pneumatic indicator.

5. according to claim 1 coal-fired flue-gas are processed and use dust chemical catalysis parallel processors, it is characterised in that：In described Ghost body sidewall is provided with pneumatic indicator；The blast pipe is located at the cornerwise two ends of hollow housing with discharge pipe.

6. according to claim 1 coal-fired flue-gas are processed and use dust chemical catalysis parallel processors, it is characterised in that：The arteries and veins The pipeline rushed between formula precipitron, dry chemical Catalytic processor is provided with temperature sensor.

7. according to claim 1 coal-fired flue-gas are processed and use dust chemical catalysis parallel processors, it is characterised in that：The ash Struggle against as truncated rectangular pyramids structure；The incline of the truncated rectangular pyramids and the angle of upper bottom surface are 65～85 degree.