CN209540913U - A kind of device effectively removing acrylonitrile waste gas - Google Patents
A kind of device effectively removing acrylonitrile waste gas Download PDFInfo
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- CN209540913U CN209540913U CN201920066430.1U CN201920066430U CN209540913U CN 209540913 U CN209540913 U CN 209540913U CN 201920066430 U CN201920066430 U CN 201920066430U CN 209540913 U CN209540913 U CN 209540913U
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Abstract
The utility model discloses a kind of device for effectively removing acrylonitrile waste gas, including sequentially connected import blower, import poppet, RTO device exports poppet, and chilling tower, scrubbing tower, dehumidify tower, and activated carbon adsorber exports blower and chimney；The air outlet of import blower is connected to the air inlet of import poppet bottom, the gas outlet of import poppet is connected to the waste gas inlet of RTO device lower furnace body, the exhaust gas outlet of RTO device lower furnace body is connected to the air inlet of outlet poppet bottom, the gas outlet of outlet poppet is connected to the air inlet pipe of chilling tower, and the exhaust pipe of chilling tower is connected with the air inlet pipe of scrubbing tower.The design of the ring-shaped valve seats and elastic seal ring of utility model device poppet realizes the zero leakage of exhaust gas so that the device has the effect more sealed in use.The device provides the device that set of system administers acrylonitrile waste gas, which all meets from the discharge of acrylonitrile administered to the end, and practical performance is high.
Description
Technical field
The utility model relates to waste gas pollution control and treatment field, in particular to a kind of device for effectively removing acrylonitrile waste gas.
Background technique
Chemical industry produces in tail gas in styrene-acrylonitrile butadiene copolymer resin (ABS) production process containing big
The acrylonitrile of amount is wanted according to Jiangsu Province's provincial standard " chemical industry Volatile organic emissions standard " DB323151-2016
It asks, acrylonitrile concentration of emission is needed lower than 0.5mg/m3, in the prior art, Ningbo LG Yong Xing Chemical Co., Ltd., production ABS,
SAN, CP resin, the South Korea heat accumulating type three-tower type RTO that they use add knife valve arrangement, and acrylonitrile content is excessively high in exhaust gas at present
It is not up to standard.Changzhou chemical plant, and production halogen slurry ABS and ion A BS resin, two tower RTO structures of use, at present exhaust gas
It is not up to standard.Since comparision contents are high in exhaust gas tail gas, need to acrylonitrile concentration of emission lower than 0.5mg/m3, to environmental protection equipment
The removal efficiency of RTO is not less than 99.75% or more, this is a higher requirement to heat accumulating type RTO.Accumulation of heat used at present
The removal efficiency 95% of two tower of formula RTO, the heat accumulating type RTO+ butterfly valve removal efficiency 96% of three towers, the heat accumulating type RTO+ knife of three towers
Valve, poppet removal efficiency 98%, poppet can be accomplished not leak, removal efficiency 99%.Also it is difficult to ensure that removal efficiency
99.75% or more.
Further say, the acrylonitrile processing unit of the prior art, not the device of set of system by acrylonitrile gas from
Oxidation is burned to the cooling of exhaust gas, washing, dehumidifying, absorption and discharge to the end, not smart enough and conveniently.
Summary of the invention
The utility model overcomes the deficiency in the presence of the above-mentioned prior art, provides a kind of acrylonitrile waste gas processing dress
It sets, wherein more seal protections of poppet thoroughly solve the problems, such as thermal oxidation furnace exhaust gas leakage, and the device is using hard sealing
In conjunction with soft seal, when soft seal is failed due to working long hours, hard sealing is worked, and more sealings of using both hard and soft tactics, effect is more
It is good, realize zero leakage；Furthermore the RTO device in the utility model is designed by the separate structure of upper and lower furnace body, so that it is manufactured
Cost reduces, and maintenance early period and later period maintenance also become simply, and poppet is vertically-mounted, avoids output shaft by card；RTO dress
The bottom set directly is contacted with ground, and whole device relies on ground supports, allows to place more accumulation of heat in the device
Body；Furthermore chilling tower apparatus not only solved in 1~2 second, the exhaust gas that temperature is 850~1000 DEG C is quickly cooled to 120
~180 DEG C of the problem of, while also having the characteristics that corrosion resistant, can effectively it prolong the service life.
The technical solution of the utility model is achieved in that
A kind of device effectively removing acrylonitrile waste gas, including sequentially connected import blower, import poppet, RTO dress
It sets, exports poppet, chilling tower, scrubbing tower, the dehumidifying tower being connected to scrubbing tower escape pipe, the work being connected to dehumidifying tower escape pipe
Property charcoal adsorption tower, the outlet blower being connected to activated carbon adsorber gas outlet and with the chimney that is connected to of outlet blower exhaust outlet；Institute
Stating import, exporting poppet includes bracket, set on the rectilinear path cylinder of cradle top, the circle hollow set on bracket lower interior portion
Cylindrical supports are fixed between the bracket and rectilinear path cylinder by cylinder mounting plate, rectilinear path cylinder lower part
It is connected with across cylinder mounting plate center and the output shaft of frame bottom is extended in lower end；The supporting element is the upper branch by tubular
The lower support element mounted on top of support member and tubular composition, accompanies the support plate of annular between upper supporting piece and lower support element；Upper branch
Support member, lower support element and support plate are fixed by flange, and height branch identical with lower support element is equipped at lower support element center
Column；Output shaft lower end is connected with control-rod, and the lower end of control-rod is connected with circular valve plate；It is equipped with annular plate valve on the supporting plate
Seat, ring-shaped valve seats have the inner sidewall and lateral wall perpendicular to support plate, and lateral wall is higher than inner sidewall, between the inside and outside sidewalls
Elastic seal ring equipped with annular, the upper end of elastic seal ring are higher by lateral wall, squeezed when valve plate pushes elastic seal ring and
Lateral wall upper-end contact with ring-shaped valve seats simultaneously；The RTO device includes upper furnace body and lower furnace body, and upper furnace body includes upper furnace body
Shell, the rinforcement bar outside upper furnace body shell are equipped with the thermal storage ceramic with a thickness of 5cm to 15cm in upper furnace body lower part, are storing
The honeycomb heat accumulation body with a thickness of 30cm to 60cm is arranged below in thermal Ceramics, and upper furnace body inner walls post heat preservation module；Lower furnace body
Three poppets including being set to lower furnace body top are arranged in the waste gas inlet of lower furnace body left end setting in lower furnace body right end
Exhaust gas outlet, set in lower furnace body lower part there are three purging air door；The chilling tower includes chilling tower ontology, is set to chilling
The external water tank of tower sheet the cooling bay of bottom and is set to the cooling dress of the intrinsic nozzle of chilling tower in chilling tower ontology
It sets；The chilling tower body outer wall posts heat insulating material for external, and chilling tower ontology is made of duplex stainless steel 2205 material；Cooling bay
Interior to be equipped with cold water, water tank connects cooling bay by water supply pipe, and tank top is equipped with external water pipe；The chilling tower bodies top is set
There is exhaust pipe, the chilling tower ontology middle and lower part is equipped with air inlet pipe, and air inlet pipe rear end is fixed on this body sidewall of chilling tower, air inlet
Pipe front end is placed in below the water surface of chilling tower body lower part cooling bay；The nozzle cooling device include circulating pump, flow pipe and
The branch pipe above the cooling bay water surface is arranged in multiple spaced horizontals up and down, and circulating pump is connected by flow pipe with cooling bay, together
Shi Zhiguan is connected with flow pipe again, and the nozzle sprayed downward is all evenly distributed on every branch pipe；The import blower goes out
Air port is connected to the air inlet that import poppet bottom is equipped with, gas outlet and the RTO device lower furnace body of the import poppet
The air inlet that waste gas inlet connection, the exhaust gas outlet of the RTO device lower furnace body and outlet poppet bottom are equipped with connects
Logical, the gas outlet of the outlet poppet is connected to the air inlet pipe of chilling tower ontology, the exhaust pipe and scrubbing tower of chilling tower ontology
Air inlet pipe be connected.
Specifically, rectilinear path cylinder connects PLC controller, when exhaust gas enters poppet, rectilinear path cylinder is controlled in PLC
Under the control of device processed, output shaft and valve plate act upwards, so that exhaust gas enters poppet, Zhi Houzai from the gap in supporting element
Into in waste gas treatment equipment RTO.When PLC controller is to rectilinear path cylinder shutdown signal, the control of rectilinear path cylinder is defeated
Shaft and valve plate downward actuation when valve plate is fallen, squeeze elastic seal ring, i.e. poppet first time sealing function, then first
Valve plate continues to be pressed downwardly against on the lateral wall of ring-shaped valve seats, i.e., second of sealing function of poppet, valve plate continue to be pressed down against,
Elastic seal ring a part is compressed on the inner sidewall of ring-shaped valve seats, realizes poppet third time sealing function；It protects three times
To guarantee that exhaust gas not can enter in poppet, zero leakage is realized.It can wherein be dismantled between upper supporting piece and lower support element,
It is dismantled according to demand in practical application, the height of upper supporting piece and lower support element can also be replaced according to demand, practicability is preferable.
Exhaust gas is entered in the burner hearth by the air inlet of lower furnace body, and low temperature waste gas and honeycomb heat accumulation body, thermal storage ceramic carry out heat exchange, bee
Nest heat storage transfers heat to low temperature waste gas, and exhaust gas carries out oxygenolysis after absorbing heat, reaches firing point temperature and starts
Burning, after furnace chamber inner combustion 1 to 2 second, exhaust gas temperature reaches 850 DEG C or so, and exhaust gas is using honeycomb regenerator in another tower
Body, thermal storage ceramic, 850 DEG C of exhaust gas transfer heat to the honeycomb heat accumulation body of low temperature, thermal storage ceramic again, thus honeycomb regenerator
Body, thermal storage ceramic heating.Honeycomb heat accumulation body, the thermal storage ceramic being heated, as the air inlet recycled next time, to heat entrance
Low temperature waste gas, switching in general 3 minutes is primary.Further more, rectilinear path cylinder connects PLC controller, when exhaust gas enters promotion
Valve, under the control of PLC controller, output shaft and valve plate act rectilinear path cylinder upwards, so that exhaust gas is out of supporting element
Gap enters poppet, is entered back into waste gas treatment equipment RTO later.It closes and believes to rectilinear path cylinder when PLC controller
Number when, rectilinear path cylinder controls output shaft and valve plate downward actuation, and when valve plate is fallen, extruding elastic seal ring first mentions
Lift valve first time sealing function, then valve plate continues to be pressed downwardly against on the lateral wall of ring-shaped valve seats, i.e., second of poppet close
Envelope effect, valve plate continue to be pressed down against, and elastic seal ring a part is compressed on the inner sidewall of ring-shaped valve seats, realize poppet
Third time sealing function；Protection realizes zero leakage to guarantee that exhaust gas not can enter in poppet three times.Wherein upper supporting piece with
It can dismantle between lower support element, dismantle according to demand in practical applications, upper supporting piece can also be replaced according to demand under
The height of supporting element, practicability are preferable.Sludge dries exhaust gas after high temperature incineration aoxidizes, and is equipped with by chilling tower ontology middle and lower part
Air inlet pipe enter in chilling tower ontology, in bottom coohng pond in chilling tower ontology cold water carry out first time heat exchange,
The cold water that exhaust gas is cooled in pond is cooling for the first time, the exhaust gas and cooling bay inner part quilt that not soluble in water and small part is not cooled
The water of vaporization is together to the ionized motion of chilling tower ontology.In addition, circulating pump passes through the water of chilling tower body bottom portion cooling bay
The cold water that flow pipe is introduced into the branch pipe above the cooling bay water surface, in branch pipe is cooled down twice exhaust gas.
Preferably, the shape of the honeycomb regenerator body section is octagon, it is equipped on the surface of honeycomb heat accumulation body more
A protrusion being stamped to form, and the protrusion on honeycomb heat accumulation body surface is staggered；The thermal storage ceramic includes shape of a saddle ceramic bottom
And several are evenly distributed on the ceramic branch in shape of a saddle ceramic bottom, ceramic branch includes the root for connecting shape of a saddle ceramic bottom
And the free end far from shape of a saddle ceramic bottom, by root to free extreme direction, ceramic branch is divided into 3 sections, respectively and saddle
First branch piece of shape ceramic bottom connection and the second branch piece of the first branch piece connection in a certain angle and the second branch piece are in a clamp
The third branch piece of angle connection.
Preferably, the angle of second branch piece and the first branch piece is 120-150 degree, third branch piece and the second branch piece
Angle is 130-150 degree.Such shape design can be formed about convolution in fin, extend the residence time of air, improve
The frequency of exposure of air and fin, so that heat be enable sufficiently to exchange.
Preferably, being equipped with the through-hole passed through for output shaft on the bottom plate of bracket, vertical cut is fixed on output shaft
Face is the seal nipple of T shape, and concave filler seat is fixed on plate outer side bottom surface, is filled with graphite powder in the filler seat,
Seal nipple is inserted into filler seat.Specifically, the graphite powder being filled in filler seat makes the through-hole on output shaft and bracket bottom plate
Between there is no gap, thus guarantee do not have gas leakage.
Preferably, having diameter on the valve plate to be less than valve plate and shape is circular clamping plate, clamping plate, valve plate pass through
Flange is fixed on the lower end of control-rod.The setting of clamping plate guarantees that valve plate will not deform during extruding, increases equipment
Service life.
Preferably, reinforcing rib is equipped on the outside of ring-shaped valve seats between support plate.Reinforcing rib is for protecting ring-shaped valve seats to make
Ring-shaped valve seats is obtained not to be displaced when being squeezed.
Preferably, being from bottom to top equipped with 3 branch pipes above the cooling bay water surface altogether, uniformly set on the branch pipe of lower section
There are 10 first jets, 13 second nozzles are uniformly provided on the branch pipe at middle part, 16 thirds are uniformly provided on the branch pipe of top
Nozzle, for 3 branch pipes each parallel to horizontal plane, the pore size of the mesh on first jet is 0.05mm to 0.1mm, second nozzle
On the pore size of mesh be 0.1mm to 1mm and the pore size of the mesh on third nozzle is 1mm to 1.5mm.Specifically
, what the water and 3 branch pipe nozzles that the exhaust gas and cooling bay inner part that not soluble in water and small part is not cooled are vaporized sprayed
Atomized water contact, carries out multiple heat exchange, exhaust gas is repeatedly cooled down by nozzle cooling device；Furtherly, exhaust gas is moving upwards
During, the atomized water sprayed first with third nozzle contacts, and third nozzle bore is large aperture, can be to most of exhaust gas
Cooling effect is played, subsequent uncooled exhaust gas is contacted with second nozzle, and second nozzle aperture is middle aperture, can be to minority
Exhaust gas is cooled down, and the last remaining uncooled exhaust gas of sub-fraction is contacted with first jet, and first jet aperture is aperture
Diameter can be fully cooled remaining exhaust gas；Exhaust gas after cooling is got off by rapid condensation, with atomized water it is low in
Bottom in tower.In cold water and nozzle cooling device in cooling bay the moisture of part in the form of water vapour, after being brought by exhaust gas
The scrubbing tower at end.
Preferably, it is circular pipe that the air inlet pipe, which is a cross section, the global shape of air inlet pipe is arc.Arc phase
For rectangular-shaped pipe, the direction of exhaust gas can be changed, make it vertically into the water surface, cooling is more abundant.
Preferably, being respectively equipped with high level switch in tower, low liquid level in tower up and down in the cooling bay of chilling tower ontology
Switch, water supply pipe are equipped with water supply solenoid valve in tower, high level switch in tower, in tower low liquid level switch with moisturizing electromagnetism in tower
Valve connection.Specifically, being mended in tower when low liquid level switch detects low liquid level of the liquid level of cooling pool inner water lower than setting in tower
Water solenoid valve is opened, and the water in water tank carries out moisturizing to the intrinsic cooling bay of chilling tower by water supply pipe；When high liquid level in tower
When switch detects that the water in cooling bay is added to the high liquid level of setting, water supply solenoid valve is closed in tower, and cooling bay moisturizing is given in stopping.
Preferably, being respectively equipped with high level switch in water tank, low liquid in water tank above and below the external water tank of chilling tower sheet
Bit switch, the external water pipe of tank top are equipped with water tank water supply solenoid valve, and high level switch in water tank, low liquid level is opened in water tank
The connection of Guan Junyu water tank water supply solenoid valve.It is set specifically, working as low liquid level switch in water tank and detecting that the liquid level of water in water tank is lower than
When fixed low liquid level, water tank water supply solenoid valve is opened, and water tank carries out moisturizing by the external water pipe at top.When high liquid level in water tank
When switch detects that the water in water tank is added to the high liquid level of setting, water tank water supply solenoid valve is closed, and water tank moisturizing terminates.
It is using the design starting point, theory and beneficial effect of the utility model of above-mentioned technical proposal:
The design of the ring-shaped valve seats and elastic seal ring of utility model device poppet, so that the device has and seals more
Effect realizes the zero leakage of exhaust gas in use.Furthermore it can be dismantled between the device upper supporting piece and lower support element,
The height of upper supporting piece and lower support element can also be replaced according to demand, and practicability is preferable；In addition, RTO device passes through upper and lower furnace
The separate structure of body designs, so that the manufacturing cost of the device reduces, maintenance early period and later period maintenance also become simply, and the dress
The poppet set is vertically-mounted, avoids output shaft by card, so that the device at work stablize by performance；Furthermore the device
Bottom is directly contacted with ground, and whole device relies on ground supports, allows to place more heat storage in the device, is stored
The thermal efficiency is up to 96% or more.The operating temperature of chilling tower apparatus can achieve 850 to 1000 DEG C, and it is higher to be suitable for initial temperature
850~1000 DEG C of exhaust gas, chilling tower ontology 1 are made of duplex stainless steel 2205 material, and duplex stainless steel 2205 material is very
It is corrosion-resistant, so for being also suitable with corrosive exhaust gas, due to distance between the air inlet pipe and cooling bay of chilling tower apparatus
It is relatively close, so that exhaust gas, after entering the chilling tower apparatus, energy Rapid contact to cooling bay inner cold water is able to cooling for the first time, in addition
The nozzle cooling device that the chilling tower apparatus is equipped with can repeatedly cool down exhaust gas, be equipped on cooling bay and water tank high and low
Water potential in liquid-level switch, cooling bay and water tank automatically controls, and does not need the monitoring of personnel's continuity, and efficiency is higher.
The utility model provides the device that set of system administers acrylonitrile waste gas, and the device is from the improvement of acrylonitrile to most
Discharge afterwards all meets, and practical performance is high.
Detailed description of the invention
Fig. 1 is utility model each section connection schematic diagram；
Fig. 2 is utility model poppet schematic diagram；
Fig. 3 is the portion Fig. 2 a schematic diagram；
Fig. 4 is utility model RTO device front schematic view；
Fig. 5 is utility model RTO device diagrammatic cross-section；
Fig. 6 is utility model RTO device top view；
Fig. 7 is utility model honeycomb heat accumulation body surface bulge schematic diagram；
Fig. 8 is the schematic diagram of thermal storage ceramic in utility model；
Fig. 9 is utility model chilling tower schematic diagram.
Each appended drawing reference are as follows: 1, bracket；101, bottom plate；102, limit switch；103, floating junction；2, rectilinear path gas
Cylinder；3, mounting plate；4, supporting element；401, upper supporting piece；402, lower support element；403, support plate；404, valve seat；405, inside
Wall；406, lateral wall；407, sealing ring；408, reinforcing rib；5, output shaft；501, control-rod；502, valve plate；503, connector；
504, filler seat；505, clamping plate；6, pillar；7, backing plate；8, upper furnace body shell；801, rinforcement bar；802, thermal storage ceramic；803,
Honeycomb heat accumulation body；804, heat preservation module；8021, root；8022, the first branch piece；8023, the second branch piece；8024, third branch piece；
8025, shape of a saddle ceramic bottom；8026, ceramic branch；8031, raised；9, poppet；9a, import poppet；9b, outlet are promoted
Valve；10, air inlet；11, gas outlet；1c, chilling tower ontology；101c, exhaust pipe；102c, air inlet pipe；2c, heat insulating material for external；
3c, cooling bay；High level switch in 301c, tower；Low liquid level switchs in 302c, tower；4c, nozzle cooling device；401c, circulation
Pump；402c, flow pipe；5c, branch pipe；501c, first jet；502c, second nozzle；503c, third nozzle；6c, water tank；
601c, water supply pipe；Water supply solenoid valve in 602c, tower；High level switch in 603c, water tank；Low liquid level switchs in 604c, water tank；
605c, external water pipe；606c, water tank water supply solenoid valve.
Specific embodiment
Specific embodiment of the present utility model is as follows:
As shown in Figure 1, a kind of device for effectively removing acrylonitrile waste gas, including sequentially connected import blower, import mention
Lift valve 9a, RTO device exports poppet 9b, chilling tower, scrubbing tower, the dehumidifying tower being connected to scrubbing tower escape pipe, with dehumidifying tower
Escape pipe connection activated carbon adsorber, outlet blower be connected to activated carbon adsorber gas outlet and with export blower exhaust outlet
The chimney of connection；As shown in Fig. 2, the import poppet 9a, outlet poppet 9b include bracket 1, set on 1 top of bracket
Rectilinear path cylinder 2, the cylindrical support part 4 hollow set on 1 lower interior portion of bracket, the bracket 1 and rectilinear path cylinder 2 it
Between it is fixed by cylinder mounting plate 3,2 lower part of rectilinear path cylinder is connected with across 3 center of cylinder mounting plate and lower end is prolonged
Stretch out the output shaft 5 of 1 bottom of bracket；The supporting element 4 is by the upper supporting piece 401 of tubular and the lower support element 402 of tubular
Under stack composition, accompanied between upper supporting piece 401 and lower support element 402 annular support plate 403；Upper supporting piece 401, lower support
Part 402 and support plate 403 are fixed by flange, and height branch identical with lower support element 402 is equipped at 402 center of lower support element
Column 6；5 lower end of output shaft is connected with control-rod 501, and the lower end of control-rod 501 is connected with circular valve plate 502；As shown in figure 3,
Ring-shaped valve seats 404 is equipped in support plate 403, ring-shaped valve seats 404 has perpendicular to the inner sidewall 405 of support plate 403 and outside
Wall 406, lateral wall 406 are higher than inner sidewall 405, are equipped with the elastic seal ring 407 of annular inside, between lateral wall 406, and elasticity is close
The upper end of seal 407 is higher by lateral wall 406, and elastic seal ring 407 is squeezed when valve plate 502 pushes and at the same time and ring-shaped valve seats
404 406 upper-end contact of lateral wall, this described 407 height of elastic seal ring are 5cm；As shown in Figs. 4-6, the RTO device
Including upper furnace body and lower furnace body, upper furnace body includes upper furnace body shell 8, the rinforcement bar 801 outside upper furnace body shell 8, is set to upper
Lower portion of furnace body is uniformly distributed, with a thickness of the thermal storage ceramic 802 of 5cm to 15cm, thermal storage ceramic 802 be arranged below with a thickness of
The honeycomb heat accumulation body 803 of 30cm to 60cm, 8 inner wall of upper furnace body shell post heat preservation module 804；Lower furnace body includes being set to lower furnace body
Three poppets 9 on top, in the waste gas inlet 10 of lower furnace body left end setting, in the exhaust gas outlet of lower furnace body right end setting
11, set in lower furnace body lower part there are three purging air door 12；As shown in figure 9, the chilling tower includes chilling tower ontology 1c, sets
In outside chilling tower ontology 1c water tank 6c, in chilling tower ontology 1c the cooling bay 3c of bottom and be set to chilling tower ontology 1c
Interior nozzle cooling device 4c；The chilling tower ontology 1c outer wall posts heat insulating material for external 2c, chilling tower ontology 1c be two-phase not
Rust 2205 material of steel is made；Cold water is equipped in cooling bay 3c, water tank 6c passes through water supply pipe 601c connection cooling bay 3c, water tank 6c
Top is equipped with external water pipe 605c；Be equipped with exhaust pipe 101c at the top of the chilling tower ontology 1c, in the chilling tower ontology 1c under
Portion is equipped with air inlet pipe 102c, and the rear end air inlet pipe 102c is fixed on chilling tower ontology 1c side wall, and the front end air inlet pipe 102c is placed in urgency
Below the water surface of the cooling bay 3c of the cold lower part tower ontology 1c；The nozzle cooling device 4c includes circulating pump 401c, flow pipe
The branch pipe 5c above the cooling bay 3c water surface is arranged in 402c and multiple spaced horizontals up and down, and circulating pump 401c passes through flow pipe 402c
It is connected with cooling bay 3c, while branch pipe 5c is connected with flow pipe 402c again, is all evenly distributed with downward on every branch pipe 5c
The nozzle of injection；The air outlet of the import blower is connected to the air inlet that the bottom import poppet 9a is equipped with, and the import mentions
The gas outlet of lift valve 9a is connected to the waste gas inlet 10 of RTO device lower furnace body, the exhaust gas outlet of the RTO device lower furnace body
Mouth 11 is connected to the air inlets that the outlet bottom poppet 9b is equipped with, the gas outlet of the outlet poppet 9b and chilling tower ontology 1c
Air inlet pipe 102c connection, the exhaust pipe 101c of chilling tower ontology 1c is connected with the air inlet pipe of scrubbing tower.
Specifically, rectilinear path cylinder 2 connects PLC controller (not shown), when exhaust gas enters poppet, rectilinear path gas
Cylinder 2 is under the control of PLC controller (not shown), and output shaft 5 and valve plate 502 act upwards, so that exhaust gas is out of supporting element 4
Gap enters poppet, is entered back into waste gas treatment equipment RTO (not shown) later.When PLC controller is (not shown) to straight
When lineal travel 2 shutdown signal of cylinder, rectilinear path cylinder 2 controls output shaft 5 and 502 downward actuation of valve plate, valve plate 502 are fallen
When, elastic seal ring 407, i.e. poppet first time sealing function are squeezed first, and then valve plate 502 continues to be pressed downwardly against annular
On the lateral wall 406 of valve seat 404, i.e., second of sealing function of poppet, valve plate 502 continue to be pressed down against, elastic seal ring 407
A part is compressed on the inner sidewall 405 of ring-shaped valve seats 404, realizes poppet third time sealing function；Three times protection to
Guarantee that exhaust gas not can enter in poppet, realizes zero leakage.It can wherein be dismantled between upper supporting piece 401 and lower support element 402,
It is easy to disassemble in practical applications, the height of upper supporting piece 401 Yu lower support element 402, practicability can also be replaced according to demand
Preferably.
Furtherly, the through-hole passed through for output shaft 5, the fixing sleeve on output shaft 5 are equipped on the bottom plate 101 of bracket 1
Having longitudinal section is the seal nipple 503 of T shape, and concave filler seat 504, the filler are fixed in 101 outside bottom surface of bottom plate
Graphite powder is filled in seat 504, seal nipple 503 is inserted into filler seat 504.Specifically, the graphite powder being filled in filler seat 504 makes
Obtaining between the through-hole on 1 bottom plate 101 of output shaft 5 and bracket does not have gap, to guarantee not having gas leakage.
Diameter is had on the valve plate 502 less than valve plate 502 and shape is circular clamping plate 505, clamping plate 505, valve plate
502 are fixed on the lower end of control-rod 501 by flange.The setting of clamping plate 505 guarantees that valve plate 502 will not during extruding
It deforms, increases the service life of equipment.
Reinforcing rib 408 is equipped between 404 outside of ring-shaped valve seats and support plate 403.Reinforcing rib 408 is for protecting annular
Valve seat 404 is displaced ring-shaped valve seats 404 not when being squeezed.In addition, being filled with three inside the ring-shaped valve seats 404
Layer backing plate 7, backing plate 7 can increase or dismantle according to actual conditions when using, flexibly control height, be easy to use
As shown in Figure 7,8, the shape in 803 section of honeycomb heat accumulation body is octagon, in the table of honeycomb heat accumulation body 803
Face is equipped with multiple protrusions 8031 being stamped to form, and the protrusion 8031 on 803 surface of honeycomb heat accumulation body is staggered；The storage
Thermal Ceramics 802 include shape of a saddle ceramic bottom 8025 and several are evenly distributed on the ceramic branch in shape of a saddle ceramic bottom 8025
8026, ceramic branch 8026 includes connecting the root 8021 of shape of a saddle ceramic bottom 8025 and far from shape of a saddle ceramic bottom 8025
Free end, by root 8021 to free extreme direction, it is 3 sections that ceramic branch 8026, which divides, respectively with shape of a saddle ceramic bottom 8025
First branch piece 8022 of connection and the second branch piece 8023 of the connection in a certain angle of the first branch piece 8022 and the second branch piece 8023
The third branch piece 8024 of connection in a certain angle.
Specifically, exhaust gas is entered in the burner hearth by the air inlet 10 of RTO device lower furnace body, low temperature waste gas and honeycomb regenerator
Body 803, thermal storage ceramic 802 carry out heat exchange, and honeycomb heat accumulation body 803 transfers heat to low temperature waste gas, and exhaust gas is absorbing heat
After carry out oxygenolysis, reach firing point temperature and start to burn, after furnace chamber inner combustion 1 to 2 second, exhaust gas temperature reaches 850 DEG C
Left and right, exhaust gas transfers heat to low again using 802,850 DEG C of honeycomb heat accumulation body 803, thermal storage ceramic exhaust gas in another tower
Honeycomb heat accumulation body 803, the thermal storage ceramic 802 of temperature, so that honeycomb heat accumulation body 803, thermal storage ceramic 802 are heated.The bee being heated
Nest heat storage 803, thermal storage ceramic 802, as the air inlet recycled next time, to heat the low temperature waste gas of entrance, general 3 minutes
Switching is primary
The angle of second branch piece 8023 and the first branch piece 8022 is 120-150 degree, third branch piece 8024 and second
The angle of piece 8023 is 130-150 degree.Such shape design can be formed about convolution in thermal storage ceramic 802, extend exhaust gas
Residence time, improve exhaust gas and thermal storage ceramic 802 frequency of exposure, so that heat be enable sufficiently to exchange.
As shown in figure 9, being from bottom to top equipped with 3 branch pipe 5c, lower section altogether above the cooling bay 3c water surface of the chilling tower
Branch pipe on be uniformly provided with 10 first jet 501c, 13 second nozzle 502c are uniformly provided on the branch pipe at middle part, top
Be uniformly provided with 16 third nozzle 503c on branch pipe, 3 branch pipes 5 each parallel to horizontal plane, mesh on first jet 501c
Pore size is 0.05mm to 0.1mm, the pore size of mesh on second nozzle 502c is 0.1mm to 1mm and third spray
The pore size of mesh on mouth 503c is 1mm to 1.5mm.
Specifically, water that exhaust gas and cooling bay 3c inner part that not soluble in water and small part is not cooled are vaporized and 3
The atomized water contact that branch pipe 5c nozzle sprays, carries out multiple heat exchange, exhaust gas is by more coolings of nozzle cooling device 4c；Into one
Step says that during moving upwards, the atomized water sprayed first with third nozzle contacts exhaust gas, and third nozzle bore is macropore
Diameter can play cooling effect to most of exhaust gas, and subsequent uncooled exhaust gas is contacted with second nozzle, second nozzle aperture
For middle aperture, a small number of exhaust gas can be cooled down, the last remaining uncooled exhaust gas of sub-fraction is contacted with first jet,
First jet aperture is small-bore, can be fully cooled to remaining exhaust gas；Exhaust gas is got off by rapid condensation after cooling, with
Atomized water is low in bottom in tower together.The moisture of part is in cold water and nozzle cooling device 4c in cooling bay 3c with water vapour
Form, brought into the scrubbing tower (not shown) of rear end by exhaust gas.
This described air inlet pipe 102c is that a cross section is circular pipe, and the global shape of air inlet pipe 102c is arc.Arc
For rectangular-shaped pipe, the direction of exhaust gas can be changed, make it vertically into the water surface, cooling is more abundant.
High level switch 301c in tower is respectively equipped with up and down in the cooling bay 3c of chilling tower ontology 1c, low liquid level is opened in tower
302c is closed, water supply pipe 601c is equipped with water supply solenoid valve 602c in tower, high level switch 301c in tower, low liquid level switch in tower
302c is connect with water supply solenoid valve 602c in tower.
Specifically, high level switch 301c in tower, low liquid level switch 302c is all made of floating-ball level switch in tower；When in tower
When low liquid level switch 302c detects the liquid level of water in cooling bay 3c lower than the low liquid level set, water supply solenoid valve 602c is beaten in tower
It opens, the water in water tank 6c carries out moisturizing to the cooling bay 3c in chilling tower ontology 1c by water supply pipe 601c；When high liquid level in tower
When switch 301c detects that the water in cooling bay 3c is added to the high liquid level of setting, in tower water supply solenoid valve 602c close, stop to
Cooling bay 3c moisturizing.
High level switch 603c in water tank is respectively equipped in the water tank 6c or more outside chilling tower ontology 1c, low liquid level in water tank
External water pipe 605c at the top of switch 604c, water tank 6c is equipped with water tank water supply solenoid valve 606c, high level switch in water tank
Low liquid level switch 604c is connect with water tank water supply solenoid valve 606c in 603c, water tank.
Specifically, high level switch 603c in water tank, low liquid level switch 604c is all made of floating-ball level switch in water tank；When
When low liquid level switch 604c detects the liquid level of water in water tank 6c lower than the low liquid level set in water tank, water tank water supply solenoid valve
606c is opened, and water tank 6c carries out moisturizing by the external water pipe 605c at top.When high level switch 603c detects water in water tank
When water in case 6c is added to the high liquid level of setting, water tank water supply solenoid valve 606c is closed, and water tank 6c moisturizing terminates.
The design of the ring-shaped valve seats 404 and elastic seal ring 407 of utility model device poppet so that the device have it is more
The effect of sealing realizes the zero leakage of exhaust gas in use.And between the device upper supporting piece 401 and lower support element 402
It can dismantle, the height of upper supporting piece 401 Yu lower support element 402 can also be replaced according to demand, practicability is preferable；In addition,
RTO device is designed by the separate structure of upper and lower furnace body, so that the manufacturing cost of the device reduces, maintenance early period and later period dimension
Repairing also becomes simple, and the poppet 9 of the device is vertically-mounted, avoids output shaft 5 by card, so that the device is at work
Performance is stablized；Furthermore the bottom with ground of the device directly contact, and whole device relies on ground supports, allow in the device
Interior to place more heat storage, heat storage efficiency is up to 96% or more.And the air inlet pipe 102c and cooling bay 3c of chilling tower apparatus
Between be closer so that exhaust gas enter chilling tower apparatus after, can Rapid contact to cooling bay 3c inner cold water be able to first time
Cooling, the nozzle cooling device 4c that in addition chilling tower apparatus is equipped with can repeatedly cool down exhaust gas；Exhaust gas is in chilling tower apparatus
The available rapid drawdown of temperature after interior progress repeatedly cools down, chilling tower apparatus are equipped with high and low liquid level on cooling bay 3c and water tank 6c
Water potential in switch, cooling bay 3c and water tank 6c automatically controls, and does not need the monitoring of personnel's continuity, and efficiency is higher.
The device provides the device that set of system administers acrylonitrile waste gas, which administers to the end from acrylonitrile
Discharge all meets, and practical performance is high.
Claims (10)
1. a kind of device for effectively removing acrylonitrile waste gas, it is characterised in that: including sequentially connected import blower, import is promoted
Valve (9a), RTO device export poppet (9b), chilling tower, scrubbing tower, the dehumidifying tower being connected to scrubbing tower escape pipe, with dehumidifying
Tower escape pipe connection activated carbon adsorber, outlet blower be connected to activated carbon adsorber gas outlet and with outlet blower be vented
The chimney of mouth connection；The import poppet (9a), outlet poppet (9b) include bracket (1), are set at the top of bracket (1)
Rectilinear path cylinder (2), be set to the hollow cylindrical support part (4) of bracket (1) lower interior portion, the bracket (1) and straight line
Fixed by cylinder mounting plate (3) between stroke cylinder (2), rectilinear path cylinder (2) lower part is connected with pacifies across cylinder
The output shaft (5) of bracket (1) bottom is extended in loading board (3) center and lower end；The supporting element (4) is the upper supporting piece by tubular
(401) it is formed with the lower support element of tubular (402) mounted on top, accompanies ring between upper supporting piece (401) and lower support element (402)
The support plate (403) of shape；Output shaft (5) lower end is connected with control-rod (501), and the lower end of control-rod (501) is connected with circular
Valve plate (502)；Ring-shaped valve seats (404) are equipped on support plate (403), ring-shaped valve seats (404) has perpendicular to support plate (403)
Inner sidewall (405) and lateral wall (406), lateral wall (406) be higher than inner sidewall (405), inside, lateral wall sets between (406)
There is the elastic seal ring (407) of annular, the upper end of elastic seal ring (407) is higher by lateral wall (406), when valve plate (502) pushes
Elastic seal ring (407) are squeezed and at the same time lateral wall (406) upper-end contact with ring-shaped valve seats (404)；The RTO device packet
Upper furnace body and lower furnace body are included, upper furnace body includes upper furnace body shell (8), it is set to the rinforcement bar (801) of upper furnace body shell (8) outside,
Upper furnace body lower part be equipped with a thickness of 5cm to 15cm thermal storage ceramic (802), thermal storage ceramic (802) be arranged below with a thickness of
The honeycomb heat accumulation body (803) of 30cm to 60cm, upper furnace body shell (8) inner wall post heat preservation module (804)；Lower furnace body includes being set to
Three import poppets (9a) on lower furnace body top, in the waste gas inlet (10) of lower furnace body left end setting, in lower furnace body right end
The exhaust gas outlet (11) of setting, set in lower furnace body lower part there are three purging air door (12)；The chilling tower includes chilling tower
Ontology (1c) is set to the water tank (6c) of chilling tower ontology (1c) outside, the cooling bay (3c) set on the interior bottom chilling tower ontology (1c)
And it is set to the nozzle cooling device (4c) in chilling tower ontology (1c)；Chilling tower ontology (1c) outer wall posts external thermal insulation material
Expect (2c), chilling tower ontology (1c) is made of duplex stainless steel 2205 material；Cold water is equipped in cooling bay (3c), water tank (6c) is logical
Water supply pipe (601c) connection cooling bay (3c) is crossed, is equipped with external water pipe (605c) at the top of water tank (6c)；The chilling tower ontology
It is equipped with exhaust pipe (101c) at the top of (1c), the chilling tower ontology middle and lower part (1c) is equipped with air inlet pipe (102c), air inlet pipe
The rear end (102c) is fixed on chilling tower ontology (1c) side wall, and the front end air inlet pipe (102c) is placed in the lower part chilling tower ontology (1c)
Below the water surface of cooling bay (3c)；The nozzle cooling device (4c) includes circulating pump (401c), flow pipe (402c) and multiple
The branch pipe (5c) that upper and lower spaced horizontal is arranged above cooling bay (3c) water surface, circulating pump (401c) by flow pipe (402c) with
Cooling bay (3c) is connected, while branch pipe (5c) is connected with flow pipe (402c) again, is all uniformly distributed on every branch pipe (5c)
There is the nozzle sprayed downward；The air outlet of the import blower is connected to the air inlet that the bottom import poppet (9a) is equipped with, institute
The gas outlet for stating import poppet (9a) is connected to the waste gas inlet (10) of RTO device lower furnace body, the RTO device lower furnace body
Exhaust gas outlet (11) be connected to the air inlet that is equipped with of outlet bottom poppet (9b), the outlet for exporting poppet (9b)
Mouthful be connected to the air inlet pipe (102c) of chilling tower ontology (1c), the exhaust pipe (101c) of chilling tower ontology (1c) and scrubbing tower into
Tracheae is connected.
2. a kind of device for effectively removing acrylonitrile waste gas according to claim 1, it is characterised in that: the honeycomb regenerator
The shape in body (803) section is octagon, is equipped with multiple protrusions being stamped to form on the surface of honeycomb heat accumulation body (803)
(8031), and the protrusion (8031) on honeycomb heat accumulation body (803) surface is staggered；The thermal storage ceramic (802) includes the shape of a saddle
Ceramic bottom (8025) and several be evenly distributed on the ceramic branch (8026) on shape of a saddle ceramic bottom (8025), ceramic branch
It (8026) include the root (8021) of connection shape of a saddle ceramic bottom (8025) and the freedom far from shape of a saddle ceramic bottom (8025)
End, by root (8021) to free extreme direction, ceramic branch (8026) is divided into 3 sections, respectively with shape of a saddle ceramic bottom (8025)
The first branch piece (8022) of connection, with second branch piece (8023) of the first branch piece (8022) connection in a certain angle, with second
The third branch piece (8024) of piece (8023) connection in a certain angle.
3. a kind of device for effectively removing acrylonitrile waste gas according to claim 2, it is characterised in that: second branch piece
It (8023) is 120-150 degree, the angle of third branch piece (8024) and the second branch piece (8023) with the angle of the first branch piece (8022)
For 130-150 degree.
4. a kind of device for effectively removing acrylonitrile waste gas according to claim 1, it is characterised in that: in bracket (1)
Bottom plate (101) is equipped with the through-hole passed through for output shaft (5), and the sealing that longitudinal section is T shape is fixed on output shaft (5) and is connect
Head (503) is fixed with concave filler seat (504) in bottom plate (101) outside bottom surface, is filled with stone in the filler seat (504)
Ink powder, seal nipple (503) are inserted into filler seat (504).
5. a kind of device for effectively removing acrylonitrile waste gas according to claim 1, it is characterised in that: the valve plate
(502) diameter is had on less than valve plate (502) and shape is circular clamping plate (505), and clamping plate (505), valve plate (502) pass through
Flange is fixed on the lower end of control-rod (501).
6. a kind of device for effectively removing acrylonitrile waste gas according to claim 1, it is characterised in that: the annular plate valve
Reinforcing rib (408) are equipped between support plate (403) on the outside of seat (404).
7. a kind of device for effectively removing acrylonitrile waste gas according to claim 1, it is characterised in that: the cooling bay
3 branch pipes (5c) are from bottom to top equipped with above (3c) water surface altogether, are uniformly provided with 10 first jets on the branch pipe of lower section
(501c) is uniformly provided with 13 second nozzles (502c) on the branch pipe at middle part, and 16 thirds sprays are uniformly provided on the branch pipe of top
Mouth (503c), 3 branch pipes (5c) are each parallel to horizontal plane；The pore size of mesh on first jet (501c) be 0.05mm extremely
0.1mm, the pore size of the mesh on second nozzle (502c) are 0.1mm to 1mm, the hole of the mesh on third nozzle (503c)
Diameter size is 1mm to 1.5mm.
8. a kind of device for effectively removing acrylonitrile waste gas according to claim 1, it is characterised in that: air inlet pipe (102c)
It is circular pipe for a cross section, the global shape of air inlet pipe (102c) is arc.
9. a kind of device for effectively removing acrylonitrile waste gas according to claim 1, it is characterised in that: in chilling tower ontology
High level switch in tower (301c), low liquid level switch (302c) in tower, moisturizing are respectively equipped in the cooling bay (3c) of (1c) up and down
It manages (601c) and is equipped with water supply solenoid valve (602c) in tower, high level switch (301c) in tower, low liquid level switch (302c) in tower
It is connect with water supply solenoid valve in tower (602c).
10. a kind of device for effectively removing acrylonitrile waste gas according to claim 1, it is characterised in that: described in urgency
The water tank (6c) of cold tower ontology (1c) outside is respectively equipped with high level switch in water tank (603c), low liquid level switch in water tank up and down
(604c), the external water pipe (605c) at the top of water tank (6c) are equipped with water tank water supply solenoid valve (606c), and high liquid level is opened in water tank
Low liquid level switch (604c) is connect with water tank water supply solenoid valve (606c) in pass (603c), water tank.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920066430.1U CN209540913U (en) | 2019-01-15 | 2019-01-15 | A kind of device effectively removing acrylonitrile waste gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920066430.1U CN209540913U (en) | 2019-01-15 | 2019-01-15 | A kind of device effectively removing acrylonitrile waste gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595569A (en) * | 2019-01-15 | 2019-04-09 | 力同环保机械（上海）有限公司 | A kind of device effectively removing acrylonitrile waste gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595569A (en) * | 2019-01-15 | 2019-04-09 | 力同环保机械（上海）有限公司 | A kind of device effectively removing acrylonitrile waste gas |
| CN109595569B (en) * | 2019-01-15 | 2024-03-26 | 力同环保机械（上海）有限公司 | Device for effectively removing acrylonitrile waste gas |
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