CN209696636U - A kind of tunnel oven discharged gas fume reheating takes off white system - Google Patents
A kind of tunnel oven discharged gas fume reheating takes off white system Download PDFInfo
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- CN209696636U CN209696636U CN201920277921.0U CN201920277921U CN209696636U CN 209696636 U CN209696636 U CN 209696636U CN 201920277921 U CN201920277921 U CN 201920277921U CN 209696636 U CN209696636 U CN 209696636U
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Abstract
The utility model relates to a kind of tunnel oven discharged gas fume reheating to take off white system, including tunnel oven and desulfurizing tower, the top of desulfurizing tower is provided with chimney, the top of tunnel oven is provided with the heater box communicated with inside tunnel oven, heater box is located at cooling section close to one end of furnace zone, blast pipe and discharge pipe are provided on the opposite side wall of heater box, exhaust column is provided with outside one end of chimney connection desulfurizing tower, exhaust column one end is connected with the inside of chimney, the other end is connected with blast pipe, and exhaust fan is provided on exhaust column；Heat preservation air supply tube is provided on discharge pipe, heat preservation air supply tube one end is connected with air supply tube, and the other end extend into the inside of chimney.The utility model, which has, to be heated using the waste heat inside tunnel oven for discharged gas fume, to make the exhaust temperature of flue gas be higher than the temperature of dew point, to avoid smoke evacuation fogging.
Description
Technical field
The utility model relates to the technical fields of discharged gas fume processing unit, more particularly, to a kind of tunnel oven discharged gas fume
Reheating takes off white system.
Background technique
Tunnel oven roasting technique has very extensive application in industries such as ceramics, the brick and tile in China.Tunnel oven is different from
The characteristics of other kilns be its design have parallel roasting and the drying in two tunnels of drying or same tunnel, roasting,
Cooling section.The moist base of machine-building enters Drying tunnel or tunnel drying section without thorough sunning, using furnace zone
" hot fume " generated dries wet base, and the vapor of drying discharges together with flue gas.The finished product of tunnel roasting technique exists
Cooling section before kiln discharge, all contains a large amount of waste heats, these waste heats can produce 300 DEG C -500 DEG C of high temperature.But it is passed through in tunnel oven
The final smoke evacuation after drying section or Drying tunnel is crossed, but smoke temperature is very low, and water capacity is very big.
Thus, in tunnel oven roasting technique, flue gas just has that smoke temperature is very low before entering desulfurizing tower, the very big spy of water capacity
Point.Using spray sulfur removal technology, after desulfurization when neat stress outlet, it is substantially at steam-laden or close to saturation state.
After condensing with contacting external air, dense heavy " white cigarette " phenomenon is formed very much.
" white cigarette " can form " rainy " effect after further coalescence near chimney, and since there are desulfurization salt in steam
Point, there is certain harmfulness.
Utility model content
The purpose of the utility model is to provide a kind of tunnel oven discharged gas fume reheating to take off white system, has and utilizes tunnel oven
Internal waste heat is heated for discharged gas fume, to make the exhaust temperature of flue gas be higher than the temperature of dew point, thus the row of avoiding
Cigarette fogging.
The above-mentioned purpose of utility model of the utility model has the technical scheme that
A kind of tunnel oven discharged gas fume reheating takes off white system, including tunnel oven and desulfurizing tower, the top setting of desulfurizing tower
There is chimney, the inside of tunnel oven is disposed with furnace zone and cooling section from material upstream end to finished product outlet side, tunnel oven
The top position opposite with cooling section is provided with closed heater box, and the bottom of heater box extend into the inside of tunnel oven, heating
The blast pipe and discharge pipe communicated with inside heater box is respectively arranged on the side wall of the opposite two sides of case, heater box is located at cooling
Section is provided with exhaust column outside one end of furnace zone, one end of chimney connection desulfurizing tower, exhaust column one end and chimney it is interior
Portion is connected, and the other end is connected with the blast pipe of heater box, is provided on exhaust column the neat stress in chimney being pumped into pumping
Exhaust fan in air hose is provided with heat preservation air supply tube on the discharge pipe of heater box, and heat preservation air supply tube one end is connected with heating tube,
The other end is located at the position above exhaust column through chimney to extend into the inside of chimney.
By using above-mentioned technical proposal, by exhaust column and exhaust fan, the neat stress of chimney discharge is extracted one
Point, and give into the heater box being located on tunnel oven and heat up, and be again fed in chimney by keeping the temperature air supply tube, make to rise
Warm flue gas mixes again with the neat stress in chimney, so that the flue-gas temperature that chimney is discharged increases, makes it higher than the temperature of dew point
Degree, thus the case where avoiding the occurrence of white cigarette；Simultaneously because this programme has been burnt into the waste heat of article using tunnel oven, make waste heat
It makes full use of, to reach energy-efficient effect.
The utility model is further arranged to: heat preservation air supply tube extend into the central axes that one end inside chimney is located at chimney
Place and opening straight up.
By using above-mentioned technical proposal, avoids heating flue gas mobile to exhaust column direction, exhaust column is made to will heat up flue gas
It is pumped into again, to cause the waste of heat, while the high-temperature flue gas transverse direction blow-through chimney wall heated is avoided, to avoid cigarette
Chimney crosses cause thermal damage.
The utility model is further arranged to: one end that heat preservation air supply tube is extend into inside chimney is provided with mixer.
By using above-mentioned technical proposal, accelerate the speed mixed between heating flue gas and neat stress, accelerates flue-gas temperature
Promotion, and since mixer is located at center, in normal smoke exhaust process, the high-temperature flue gas and chimney at center has been isolated in cold smoke
The direct contact of wall, plays a protective role to chimney, damages high-temperature flue gas to chimney.
The utility model is further arranged to: mixer includes hollow shell open at one end closed at one end, shell
One end that open end is extend into inside chimney with heat preservation air supply tube is connected, and several exhaust vents are offered on the side wall of shell.
By using above-mentioned technical proposal, flue gas discharge will heat up by exhaust vent, to make heat up flue gas and neat stress
It is uniformly mixed.
The utility model is further arranged to: being provided with insulating layer at the outer tip end of tunnel oven.
By using above-mentioned technical proposal, the heat losses inside tunnel oven are avoided.
The utility model is further arranged to: the inside of heater box, from one end of connection blast pipe to one end of discharge pipe
Several partitions being staggered up and down are provided with, the partition being staggered makes the inside of heater box form a curved traveling road
Line.
By using above-mentioned technical proposal, extend residence time of the flue gas in heating tube, it is ensured that flue gas can be warming up to
Required temperature.
The utility model is further arranged to: condensate-water polishing dress is provided with below the junction of exhaust column and heating tube
It sets.
By using above-mentioned technical proposal, when occurring condensed water in exhaust column, can to the condensed water in exhaust column into
Row recovery processing.
The utility model is further arranged to: condensate-water polishing processing includes being fixed on catchmenting at tunnel oven outer tip end
Case, header tank are connected with the inside of exhaust column, and drainpipe is provided at the bottom of header tank, is provided with drain valve on drainpipe
Door.
By using above-mentioned technical proposal, when being filled with water in header tank, the water that will be stored in header tank by water discharging valve
Discharge, avoids high saliferous condensed water from entering heater box, takes away heat, forms fouling.
The utility model is further arranged to: liquidometer is provided on header tank.
By using above-mentioned technical proposal, it can reflect the water level in header tank in real time.
In conclusion the advantageous effects of the utility model are as follows:
1. the neat stress of chimney discharge is extracted a part, and send to positioned at tunnel oven by exhaust column and exhaust fan
On heater box in heat up, and by keep the temperature air supply tube be again fed in chimney, make heat up flue gas with it is net in chimney
Flue gas mixes again, so that the flue-gas temperature that chimney is discharged increases, the temperature of dew point is made it higher than, to avoid the occurrence of white cigarette
The case where；
2. mixer is arranged by extending into one end in chimney in heat preservation air supply tube, to accelerate heat up flue gas and net cigarette
The mixing of gas accelerates the temperature for promoting chimney institute smoke discharging；
3. the flue-gas temperature discharged in chimney is made to heat up by using the waste heat in tunnel oven, institute's smoke discharging is avoided to occur
The phenomenon that white cigarette, while using the waste heat in tunnel oven, to achieve the effect that energy saving.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that tunnel oven discharged gas fume reheating takes off white system；
Fig. 2 is the structural schematic diagram inside chimney；
Fig. 3 is the perspective view that tunnel oven discharged gas fume reheating takes off white system；
Fig. 4 is the structural schematic diagram of mixer.
In figure, 1, tunnel oven；11, furnace zone；12, cooling section；13, insulating layer；2, desulfurizing tower；21, chimney；3, it heats
Case；31, blast pipe；32, discharge pipe；4, partition；5, exhaust column；51, exhaust fan；6, three-way connection；7, header tank；71, it drains
Pipe；72, water discharging valve；73, liquidometer；8, air supply tube is kept the temperature；9, mixer；91, shell；911, exhaust vent.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
It referring to Fig.1, is that a kind of tunnel oven discharged gas fume reheating disclosed by the utility model takes off white system, including tunnel oven 1
And desulfurizing tower 2.Arrow in Fig. 1 indicates the mobile direction of 1 materials inside of tunnel oven.The inside of tunnel oven 1 enters from material
It holds to finished product outlet side and is in turn divided into furnace zone 11 and cooling section 12, the curve in Fig. 1 indicates furnace zone 11 and cooling section 12
Between separator bar.During tunnel oven 1 carries out the firing such as ceramics, brick and tile, pass through 11 pairs of ceramics of furnace zone, brick and tile carry out
It fires, by cooling section 12 ceramics, the brick and tile that bake is carried out cooling to form finished product and send out tunnel oven 1.Positioned at tunnel
The kiln top outer surface of road kiln 1 is fixed with insulating layer 13 made of one layer of heat preservation material-paving, by insulating layer 13, to avoid
Heat losses inside tunnel oven 1.It is provided with positioned at the top of desulfurizing tower 2 and communicates with the inside of desulfurizing tower 2 and consolidate with desulfurizing tower 2
It is scheduled on chimney 21 together, chimney 21 is vertically arranged, by chimney 21 to which the flue gas through purifying in desulfurizing tower 2 is discharged.
Positioned at the top of tunnel oven 1, the heater box communicated with the inside of tunnel oven 1 is provided with positioned at the top of cooling section 12
3, heater box 3 is located at cooling section 12 close to one end of furnace zone 11.Heater box 3 is closed cabinet, and the top of heater box 3 passes through
The top of tunnel oven 1 is to extend into the inside of tunnel oven 1, to make the waste heat inside heater box 3 to make the case to heater box 3
Bottom is heated, and the temperature inside heater box 3 is increased.
Heater box 3 is wherein respectively fixed with blast pipe 31 and discharge pipe 32,31 He of blast pipe on one group of opposite side wall
Discharge pipe 32 is fixedly linked with the cabinet of heater box 3 respectively and inside is connected with the inside of heater box 3.Positioned at heater box 3
Inside is provided with several partitions 4 being staggered up and down to one end of discharge pipe 32 from the one end for connecting blast pipe 31, hands over up and down
The partition 4 of mistake setting forms the curved path of travel advanced for flue gas.The partition 4 being staggered, per adjacent two
In partition 4, one of partition 4 is weldingly fixed on the case top of heater box 3, another is weldingly fixed at the bottom of heater box 3.
The surface of partition 4 is towards blast pipe 31.
The exhaust column 5 being connected with the inside of chimney 21, exhaust column are provided with outside one end of the connection desulfurizing tower 2 of chimney 21
5 one end are fixedly linked with chimney 21, and the other end is connected with the blast pipe 31 of heater box 3.It is equipped on exhaust column 5 by chimney
Flue gas in 21 is evacuated to be sent to the exhaust fan 51 in heater box 3 in exhaust column 5, and exhaust fan 51 is fixed on tunnel oven 1
On kiln top.
Three-way connection 6, the two of them connector difference of three-way connection 6 are provided between exhaust column 5 and blast pipe 31
It is connected with exhaust column 5 and 31 flange of blast pipe.The third connector of three-way connection 6 is vertically oriented to lower section.It is perpendicular in three-way connection 6
Directly one end downward is provided with header tank 7, the inner hollow of header tank 7, and the connector that three-way connection 6 is vertically oriented to lower section is stretched
Enter the inside to header tank 7 and be welded and fixed between header tank 7 to be connected.
Referring to Fig.1, Fig. 3, header tank 7 are fixed on the kiln top of tunnel oven 1, and the width of header tank 7 compares the width of tunnel oven 1
Degree is wide, so that the both ends for keeping the bottom of header tank 7 opposite are stretched out from the two sides of tunnel oven 1.It is located in the bottom of header tank 7 and stretches out
The position of tunnel oven 1 is fixed with the drainpipe 71 communicated with the inside of header tank 7, is equipped with water discharging valve on drainpipe 71
72.It is fixedly installed with liquidometer 73 on the outside side wall of header tank 7, the both ends of liquidometer 73 top with header tank 7 respectively
It is connected with the bottom end of header tank 7.By liquidometer 73 to be deposited when in header tank 7 come the storage of reacting the water in header tank 7
When water is more, water discharging valve 72 is opened to which the water in header tank 7 to be discharged.
By the way that header tank 7 is arranged, in weather in winter, the inside of exhaust column 5 can take out to caused by because outdoor temperature is low
There is condensed water in the inside of air hose 5, is collected by header tank 7 to the water in exhaust column 5, so that water be avoided to enter
In heater box 3.
Referring to Fig.1, Fig. 2 is provided with heat preservation air supply tube 8, heat preservation 8 one end of air supply tube and heating in the other end of heater box 3
Flange is connected between the discharge pipe 32 of case 3, and the other end extend into the inside of chimney 21 through the side wall of chimney 21 and is located at chimney
At central axes inside 21.Heat preservation air supply tube 8 extend into the connection position that the height inside chimney 21 is higher than exhaust column 5 and chimney 21
The height set, its spacing are greater than 1.5 meters.
Referring to Fig. 2, Fig. 4, the opening of one end that heat preservation air supply tube 8 is extend into inside chimney 21 is vertically oriented to top, is protecting
One end that warm air supply tube 8 is extend into inside chimney is fixed with the mixer 9 being connected with the inside of heat preservation air supply tube 8.Mixer 9
Including hollow shell 91 open at one end closed at one end, the open end of shell 91 is protruded into downward and with heat preservation air supply tube 8
It is open at one end opposite inside to chimney 21.Several exhaust vents 911 are offered on the side wall of shell 91.When heat preservation air supply tube 8
In heating flue gas be fed to mixer 9 shell 91 inside, to be sent to from the exhaust vent 911 on 91 side wall of shell
In chimney 21.
When the heating flue gas in heat preservation air supply tube 8 is sent in the shell 91 of mixer 9, flue gas passes through shell 91
Side wall on exhaust vent 911 be discharged.It mixes it with the neat stress being discharged in desulfurizing tower 2, increases the temperature of overall flue gas, make
Its temperature is elevated above the temperature of dew point.
Tunnel oven discharged gas fume take off using the system it is white, for electric heating, the energy conservation of the utility model
Effect is quite obvious.Put into effect documentation requirements in Handan City: " condensation heating temperature amplitude requires as follows in principle: cold under nominal situation
Solidifying section cools down 2 DEG C or more, and smoke temperature reaches 48 DEG C hereinafter, bringing-up section discharge smoke temperature reaches 54 DEG C or more；The cooling of winter condensation segment reaches
To 5 DEG C or more, smoke temperature reaches 45 DEG C hereinafter, bringing-up section smoke temperature reaches 60 DEG C or more.White flue gas is taken off with Handan City's publication
It is required that being used as parameter, neat stress temperature 45 C is heated to 60 DEG C, and hour flue gas flow is calculated according to 20 ten thousand steres, net cigarette
The initial droplet content of gas calculates that (heat of vaporization of the water at 60 DEG C be for 50mg/ cubic metres of standard fume droplet content
2361507J/Kg).
A, droplet contained by neat stress evaporates absorbed heat estimation:
* 200000 cubic metres/H/10 of 50mg/ cubic meter6*2361507J/Kg=23612.07KJ/H。
B, (flue gas is about 1.06Kg/ cubic metres in 60 DEG C of density to the heat that heating flue gas itself needs, the hot melt of air
Than being about 1KJ/Kg) estimation:
(60 DEG C -45 DEG C) * 200000 cubic metres/H*1.06Kg/ cubic metres * 1KJ/Kg=3180000KJ/H；
Total hour thermal power is 3203612KJ/H=889.89KJ/S.
That is, the utility model uses exhaust-heat heating discharged gas fume technical solution, it is equivalent to the electricity for saving a 890Kw power
Heating device, longtime running economic benefit are extremely considerable.
The embodiment of present embodiment is the preferred embodiment of the utility model, and not limitation is originally practical new according to this
The protection scope of type, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by practical
Within novel protection scope.
Claims (9)
1. a kind of tunnel oven discharged gas fume reheating takes off white system, including tunnel oven (1) and desulfurizing tower (2), the desulfurizing tower (2)
Top be provided with chimney (21), the inside of the tunnel oven (1) is disposed with roasting from material upstream end to finished product outlet side
Burn section (11) and cooling section (12), it is characterised in that: the position that the top and cooling section (12) of the tunnel oven (1) are opposite is arranged
Have closed heater box (3), the bottom of the heater box (3) extend into the inside of tunnel oven (1), and the heater box (3) is opposite
Two sides side wall on be respectively arranged with and heater box (3) inside the blast pipe (31) and discharge pipe (32) that communicate, the heating
Case (3) is located at the one end of cooling section (12) close to furnace zone (11), sets outside one end of chimney (21) connection desulfurizing tower (2)
It is equipped with exhaust column (5), described exhaust column (5) one end is connected with the inside of chimney (21), the air inlet of the other end and heater box (3)
Pipe (31) is connected, and the exhausting being pumped into the neat stress in chimney (21) in exhaust column (5) is provided on the exhaust column (5)
Machine (51), is provided with heat preservation air supply tube (8) on the discharge pipe (32) of the heater box (3), the heat preservation air supply tube (8) one end and
Heating tube is connected, and the other end is located at the position above exhaust column (5) through chimney (21) to extend into the interior of chimney (21)
Portion.
2. a kind of tunnel oven discharged gas fume reheating according to claim 1 takes off white system, it is characterised in that: the heat preservation is sent
Air hose (8) extend into the internal one end of chimney (21) and is located at the central axes of chimney (21) and is open straight up.
3. a kind of tunnel oven discharged gas fume reheating according to claim 2 takes off white system, it is characterised in that: the heat preservation is sent
Air hose (8) extend into the internal one end of chimney (21) and is provided with mixer (9).
4. a kind of tunnel oven discharged gas fume reheating according to claim 3 takes off white system, it is characterised in that: the mixer
It (9) include hollow shell (91) open at one end closed at one end, open end and heat preservation air supply tube (8) of the shell (91) are stretched
Enter to the internal one end of chimney (21) and be connected, offers several exhaust vents (911) on the side wall of the shell (91).
5. a kind of tunnel oven discharged gas fume reheating according to claim 1 takes off white system, it is characterised in that: the tunnel oven
(1) insulating layer (13) are provided at outer tip end.
6. a kind of tunnel oven discharged gas fume reheating according to claim 1 takes off white system, it is characterised in that: the heater box
(3) inside, from connect blast pipe (31) one end to one end of discharge pipe (32) be provided with it is several up and down be staggered every
Plate (4), the partition being staggered (4) make the inside of heater box (3) form a curved travelling route.
7. a kind of tunnel oven discharged gas fume reheating according to claim 1 takes off white system, it is characterised in that: the exhaust column
(5) and condensed-water recovering device is provided with below the junction of heating tube.
8. a kind of tunnel oven discharged gas fume reheating according to claim 7 takes off white system, it is characterised in that: the condensed water
Recovery processing includes the header tank (7) being fixed at tunnel oven (1) outer tip end, and the header tank (7) is interior with exhaust column (5)
Portion is connected, and is provided with drainpipe (71) at the bottom of the header tank (7), is provided with water discharging valve on the drainpipe (71)
(72)。
9. a kind of tunnel oven discharged gas fume reheating according to claim 8 takes off white system, it is characterised in that: the header tank
(7) liquidometer (73) are provided on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920277921.0U CN209696636U (en) | 2019-03-04 | 2019-03-04 | A kind of tunnel oven discharged gas fume reheating takes off white system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920277921.0U CN209696636U (en) | 2019-03-04 | 2019-03-04 | A kind of tunnel oven discharged gas fume reheating takes off white system |
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| Publication Number | Publication Date |
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| CN209696636U true CN209696636U (en) | 2019-11-29 |
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ID=68643171
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109758882A (en) * | 2019-03-04 | 2019-05-17 | 张君宇 | A kind of tunnel oven discharged gas fume reheating takes off white system and treatment process |
| CN114082280A (en) * | 2020-08-07 | 2022-02-25 | 中国石油化工股份有限公司 | Mixing cover |
| CN114682059A (en) * | 2020-12-30 | 2022-07-01 | 中国石油化工股份有限公司 | Branch type white smoke eliminating equipment and white smoke eliminating method |
| CN114682058A (en) * | 2020-12-30 | 2022-07-01 | 中国石油化工股份有限公司 | White smoke eliminating equipment and white smoke eliminating method |
| CN116272283A (en) * | 2023-04-20 | 2023-06-23 | 王静 | Flue gas dehumidification device |
-
2019
- 2019-03-04 CN CN201920277921.0U patent/CN209696636U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109758882A (en) * | 2019-03-04 | 2019-05-17 | 张君宇 | A kind of tunnel oven discharged gas fume reheating takes off white system and treatment process |
| CN114082280A (en) * | 2020-08-07 | 2022-02-25 | 中国石油化工股份有限公司 | Mixing cover |
| CN114682059A (en) * | 2020-12-30 | 2022-07-01 | 中国石油化工股份有限公司 | Branch type white smoke eliminating equipment and white smoke eliminating method |
| CN114682058A (en) * | 2020-12-30 | 2022-07-01 | 中国石油化工股份有限公司 | White smoke eliminating equipment and white smoke eliminating method |
| CN114682058B (en) * | 2020-12-30 | 2023-05-26 | 中国石油化工股份有限公司 | White smoke eliminating equipment and white smoke eliminating method |
| CN116272283A (en) * | 2023-04-20 | 2023-06-23 | 王静 | Flue gas dehumidification device |
| CN116272283B (en) * | 2023-04-20 | 2024-02-13 | 王静 | Flue gas dehumidification device |
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