CN108837662A - A kind of dry kiln gas of carbon black takes off white device and technique - Google Patents
A kind of dry kiln gas of carbon black takes off white device and technique Download PDFInfo
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- CN108837662A CN108837662A CN201810913766.7A CN201810913766A CN108837662A CN 108837662 A CN108837662 A CN 108837662A CN 201810913766 A CN201810913766 A CN 201810913766A CN 108837662 A CN108837662 A CN 108837662A
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- 239000006229 carbon black Substances 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 86
- 238000001816 cooling Methods 0.000 claims abstract description 63
- 239000000498 cooling water Substances 0.000 claims abstract description 45
- 239000000779 smoke Substances 0.000 claims abstract description 18
- 238000001035 drying Methods 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 238000012856 packing Methods 0.000 claims abstract description 13
- 239000007789 gas Substances 0.000 claims description 57
- 239000007921 spray Substances 0.000 claims description 50
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 42
- 239000003546 flue gas Substances 0.000 claims description 42
- 239000000945 filler Substances 0.000 claims description 7
- 238000004064 recycling Methods 0.000 claims description 7
- 238000009833 condensation Methods 0.000 claims description 6
- 230000005494 condensation Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 238000002386 leaching Methods 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 230000000007 visual effect Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000004615 ingredient Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 238000004939 coking Methods 0.000 description 2
- 210000003298 dental enamel Anatomy 0.000 description 2
- 230000003670 easy-to-clean Effects 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003020 moisturizing effect Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Chimneys And Flues (AREA)
Abstract
The present invention provides a kind of dry kiln gas of carbon black to take off white device and technique.The device includes：Heat exchanger, de- White Tower and cooling tower；It is successively laid with from bottom to top inside tower body and holds flow container, at least one recycle liquid distributor, at least one packing layer, cooling water distributor and demister；The lower wall for holding the tower body at flow container is provided with smoke inlet and condensation-water drain；The upper side wall of tower body above demister is provided with exhanst gas outlet；Heat exchanger is connected with smoke inlet；Exhanst gas outlet is connected with heat exchanger；Heat exchanger is connected with chimney；Heat exchanger is connected with external carbon black drying oven；Condensation-water drain is connected with the entrance of cooling tower；The outlet of cooling tower is connected with cooling water distributor.The visual white pollution that the present invention can obviously remove smoke, especially better effect is significant in winter；The condensed water being collected simultaneously is recycled, and can recycle water resource is 35m3/ h, considerably reduces production cost, has saved water resource.
Description
Technical field
The invention belongs to flue gases to take off white technical field, and in particular to a kind of dry kiln gas of carbon black takes off white device and technique.
Background technique
Produce the matched tail gas furnace apparatus of 40,000 tons/year of carbon black drying ovens per year, fuel is generally carbon black tail gas or coke-stove gas,
Separate unit furnace exhaust gases after combustion amount about 35000-450000Nm3/ h/ line, aqueous 40-50% in wet basis flue gas, butt flue gas mainly at
It is divided into CO2、N2、O2, about 160-180 DEG C of self-desiccation machine outlet temperature, after cloth-bag type bag hose is dusted and collects carbon black,
It is emptied by chimney.
However, containing water vapour about 40%-50% in the flue gas discharged by exhaust bag hose, water resource is on the one hand caused
On the other hand waste forms visual white pollution, especially form strong visual pollution in winter.
Summary of the invention
It is of the invention in order to solve the problems such as flue gas emission in the prior art causes visual white pollution and water resource waste
It is designed to provide a kind of dry kiln gas of carbon black and takes off white device, the object of the invention is also to provide a kind of carbon black drying oven cigarettes
The white technique of qi exhaustion；White device and its process are taken off by the flue gas, the visual white pollution that can obviously remove smoke, especially
Better effect is significant in winter；It is recycled simultaneously using the condensed water that the device is collected, can about recycle water
Resource is 35m3/ h, considerably reduces production cost, has saved water resource.
The purpose of the present invention is achieved by the following technical programs：
On the one hand, the present invention provides a kind of dry kiln gas of carbon black and takes off white device, and the dry kiln gas of the carbon black takes off white device
Including：Heat exchanger, de- White Tower and cooling tower；
Described de- White Tower includes tower body and chimney, and the chimney is located above the tower body and abuts against with the tower body；
It is successively laid with from bottom to top inside the tower body and holds that flow container, at least one recycle liquid distributor, at least one fills out
The bed of material, cooling water distributor and demister；
The lower wall for holding the tower body at flow container is provided with smoke inlet and condensation-water drain；Positioned at described
The upper side wall of the tower body above demister is provided with exhanst gas outlet；
The heat exchanger is connected with the smoke inlet；The exhanst gas outlet is connected with the heat exchanger；It is described to change
Hot device is connected with the chimney；The heat exchanger is connected with external carbon black drying oven；
The condensation-water drain is connected with the entrance of the cooling tower；The outlet of the cooling tower and the cooling moisture
Cloth device is connected.
The dry kiln gas of above-mentioned carbon black takes off in white device, it is preferable that the demister is plate baffle type mist eliminator；
The chimney
The dry kiln gas of above-mentioned carbon black takes off in white device, it is preferable that includes 2 circulation fluids in the tower body of described de- White Tower
Distributor and 2 packing layers；The recycle liquid distributor and described filler layer are successively alternately from bottom to top laid in the tower body
It is internal.Condensed water after the recycle liquid distributor can be such that the water of cooling water distributor sprinkling swaps with packing layer is uniform
Distribution.
The dry kiln gas of above-mentioned carbon black takes off in white device, it is preferable that described filler layer is Raschig ring and/or Pall ring group
At ceramic packing layer.Packing layer helps to increase the contact area of flue gas and cooling water, to increase the cooling effect of cooling water
Fruit.
The dry kiln gas of above-mentioned carbon black takes off in white device, it is preferable that be additionally provided in described de- White Tower fluid level transmitter,
Flue-gas temperature transmitter and pressure difference transmitter；It is respectively used to monitor liquid level, temperature and the pressure difference inside described de- White Tower.
The dry kiln gas of above-mentioned carbon black takes off in white device, it is preferable that the first spray is provided at the condensation-water drain
Pump；The entrance of the condensation-water drain, first spray pump and the cooling tower is sequentially connected logical.
The dry kiln gas of above-mentioned carbon black takes off in white device, it is preferable that is provided at the condensation-water drain and described the
One spray pump the second spray pump arranged side by side；Second spray pump is connected with subsequent workshop section's device, for using condensed water as
The water source in other workshops recycles.
The dry kiln gas of above-mentioned carbon black takes off in white device, it is preferable that the dry kiln gas of the carbon black takes off white device and also wraps
Include increasing blower；External carbon black drying oven, the increasing blower and the heat exchanger is sequentially connected logical.The increasing blower can overcome
De- White Tower gives flue gas system bring resistance (components such as filler, demister have certain resistance in de- White Tower).
The dry kiln gas of above-mentioned carbon black takes off in white device, it is preferable that the heat exchanger is that (it uses double GGH heat exchanger
Plate industrial enamel in face).
The dry kiln gas of above-mentioned carbon black takes off in white device, it is preferable that the cooling tower is closed cooling tower, including cooling
Tower ontology and tank, heat exchange coil, third spray pump and the spray thrower for being set to the cooling tower body interior；
The heat exchange coil is set to the inside of the tank, and the spray thrower is set to the inside of the tank simultaneously
Positioned at the heat exchange coil upper end；The third spray pump is connected with the spray thrower, and the third spray pump is used for institute
It states the water in tank to be pumped into the spray thrower for spraying the heat exchange coil, realizes following for water in the tank
Ring；
The condensation-water drain, the heat exchange coil and the cooling water distributor are sequentially connected logical.
The dry kiln gas of above-mentioned carbon black takes off in white device, it is preferable that the cooling tower further includes at least one fan, institute
It states fan and is set to the top of the tank and is located at the upper end of the spray thrower and take away heat for accelerating gas flow rate,
Body is discharged in the horizontal air for skimming over heat exchange coil and having amount of heat upwards.
The dry kiln gas of above-mentioned carbon black takes off in white device, it is preferable that the number of fans is 2.
The dry kiln gas of above-mentioned carbon black takes off in white device, it is preferable that the cooling tower further includes water replanishing device, the benefit
It is connected inside water installations and the tank.The part shower water evaporated in cooling tower passes through the water compensating valve of water replanishing device certainly
Dynamic supplement, daily moisturizing about 25-30m3。
On the other hand, the present invention also provides a kind of dry kiln gas of carbon black to take off white technique, is dry using above-mentioned carbon black
Kiln gas, which takes off white device, to carry out taking off white technique, includes the following steps：
Flue gas from carbon black drying oven enters tentatively heat exchange cooling in heat exchanger, then white into taking off by smoke inlet
In tower；
Into the bottom-up flowing of flue gas in de- White Tower, cooling water sprays downwards from cooling water distributor enters packing layer
Section, cooling water and smoke contacts make flue gas further cool down condensation, are flowed into de- White Tower lower end after the condensed water precipitation in flue gas
Hold in flow container；
Condensed flue gas continues up flowing, after demister, enters heat exchanger heat exchange by exhanst gas outlet outflow and rises
Enter in chimney after temperature, is discharged into atmosphere via chimney；
The condensed water for holding flow container collection, which passes through, returns to cooling water distributor progress circulation and stress after cooling tower further cools down
It utilizes.
The dry kiln gas of above-mentioned carbon black takes off in white technique, it is preferable that the condensed water for holding flow container collection enters in cooling tower
Heat exchange coil in, in cooling tower spray thrower sprinkling water and fan generate convected air realize heat exchange cooling after returns to
Recycling is carried out in cooling water distributor.
The dry kiln gas of above-mentioned carbon black takes off in white technique, it is preferable that the flue-gas temperature that carbon black drying oven comes out is 160-
180 DEG C, moisture content 40%-42.23%；120-125 DEG C is cooled to by heat exchanger heat exchange；Flue gas enter after de- White Tower with it is cold
But the flue-gas temperature that water distributor water carries out after condensation exchange is down to 55-60 DEG C, and moisture content is down to 16%-18.7%；Flue gas is again
It is secondary to be discharged after heat exchanger heat exchange is warming up to 100-105 DEG C by chimney；
The temperature of the cooling water of cooling water distributor sprinkling is 38-40 DEG C in de- White Tower；After being exchanged with flue gas condensing
Cooling water temperature be 50-55 DEG C；Cooling water is cooled to 38-40 DEG C again and is recycled to cooling water distributor by cooling tower
In.
Cooling tower of the invention is a kind of closed cooling tower, the cooling tower can reduce cooling water temperature and
The pure cooling equipment of water quality, while also having the characteristics that：It is adaptable, structure is simple, small in size, occupied area is small,
Cooling efficiency is high, connecting line is simple, project amount is small, installation and maintenance are easy to clean, water and electric saving (the big stream of feeding spraying pump low lift
Amount, power of motor is small), the media, fire safety such as operating cost is low, can cool down high-temperature water, oils, liquid gasification class the features such as.
The visual white pollution that the dry kiln gas of carbon black of the invention takes off white device and its technique can obviously remove smoke,
Especially better effect is significant in winter；It is recycled simultaneously using the condensed water that the device is collected, can about recycle benefit
It is 35m with water resource3/ h, considerably reduces production cost, has saved water resource.
Referring to following description and accompanying drawings, only certain exemplary embodiments of this invention is disclosed in detail, specifies original of the invention
Reason can be in a manner of adopted.It should be understood that embodiments of the present invention are not so limited in range.In appended power
In the range of the spirit and terms that benefit requires, embodiments of the present invention include many changes, modifications and are equal.For a kind of reality
The feature that the mode of applying is described and/or shown can be made in one or more other embodiments in a manner of same or similar
With, be combined with the feature in other embodiment, or substitution other embodiment in feature.
Detailed description of the invention
Attached drawing described here is only used for task of explanation, and is not intended to limit model disclosed by the invention in any way
It encloses.In addition, shape and proportional sizes of each component in figure etc. are only schematical, it is used to help the understanding of the present invention, and
It is not the specific shape and proportional sizes for limiting each component of the present invention.Those skilled in the art under the teachings of the present invention, can
Implement the present invention to select various possible shapes and proportional sizes as the case may be.
Fig. 1 is that the dry kiln gas of carbon black in the embodiment of the present invention takes off white apparatus structure schematic diagram；
Accompanying drawings symbol description：
1 carbon black drying oven, 2 increase blower, and 3 GGH heat exchangers, 4 de- White Tower, 41 hold flow container, and 42 recycle liquid distributors, 43 fill out
The bed of material, 44 cooling water distributors, 45 demisters, 46 chimneys, 51 first spray pumps, 52 second spray pumps, 6 closed cooling towers, 61
Tank, 62 heat exchange coils, 63 third spray pumps, 64 spray throwers, 65 fans, 7 water replanishing devices, 8 subsequent workshop section's devices.
Specific embodiment
In order to which technical characteristic of the invention, purpose and beneficial effect are more clearly understood, now to skill of the invention
Art scheme carries out described further below, but should not be understood as that limiting the scope of the invention.In the teachings of the present invention
Under, technical staff is contemplated that these are regarded as belonging to the scope of the present invention based on any possible deformation of the invention.
It should be noted that be referred to as " being set to " another element when element, it can directly on the other element or can also
With there are elements placed in the middle.When an element is considered as " connection " another element, it can be directly to another
Element may be simultaneously present centering elements.Term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be
Mechanical connection or electrical connection, the connection being also possible to inside two elements can be directly connected, and can also pass through intermediary
It is indirectly connected, for the ordinary skill in the art, can understand the concrete meaning of above-mentioned term as the case may be.
Term as used herein " vertically ", " horizontal ", "upper", "lower", "left", "right" and similar statement are intended merely to
Bright purpose, is not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.Term as used herein "and/or" includes one or more
Any and all combinations of relevant listed item.
This implementation provides a kind of dry kiln gas of carbon black and takes off white device, as shown in Figure 1, the dry kiln gas of the carbon black takes off white dress
Set including：GGH heat exchanger 3 (using two-sided plating industrial enamel), de- White Tower 4 and closed cooling tower 6；
De- White Tower 4 includes tower body and chimney 46, and chimney 46 is located above tower body and abuts against with tower body；Inside tower body under
It is successively laid with upwards and holds flow container 41,2 recycle liquid distributor 42 and 2 packing layers 43 (recycle liquid distributor 42 and packing layers
43 are successively alternately from bottom to top laid in inside tower body, and preferred filler layer 43 is that the ceramics that Raschig ring and/or Pall ring form are filled out
The bed of material), cooling water distributor 44 and demister 45 (plate baffle type mist eliminator)；Positioned at the downside for holding the tower body at flow container 41
Wall is provided with smoke inlet and condensation-water drain；The upper side wall of tower body above demister 45 is provided with exhanst gas outlet；GGH
Heat exchanger 3 is connected with smoke inlet；Exhanst gas outlet is connected with GGH heat exchanger 3；GGH heat exchanger 3 is connected with chimney 46；
GGH heat exchanger 3 is connected with external carbon black drying oven 1；Condensation-water drain is connected with the entrance of closed cooling tower 6；Enclosed
The outlet of cooling tower 6 is connected with cooling water distributor 44.
Directly contacted in packing layer 43 by the cooling water that cooling water distributor 44 sprays with flue gas, by saturated flue gas into
Row cooling condensation, can further decrease the moisture content in flue gas, while the condensed water being precipitated can be sent to subsequent workshop section's device 8
It utilizes；Also recycling can be realized into cooling water distributor 44 by further cooling send of closed cooling tower 6.
In a preferred embodiment, the first spray pump 51 is provided at condensation-water drain；Condensation-water drain, the first spray
The entrance of leaching pump 51 and closed cooling tower 6 is sequentially connected logical；It is additionally provided at condensation-water drain arranged side by side with the first spray pump 51
Second spray pump 52；Second spray pump 52 is connected with subsequent workshop section's device 8, for using condensed water as the water source in other workshops
Recycle (such as：It can send to the fume desulfurizing tower in one workshop of coking (about 12-15t/h), two workshop of coking (about 30t/h)
Moisturizing use).
In a preferred embodiment, it further includes increasing blower 2 that the dry kiln gas of the carbon black, which takes off white device,；External carbon black
Drying oven 1, increasing blower 2 and GGH heat exchanger 3 are sequentially connected logical.
In a preferred embodiment, it takes off in White Tower 4 and is additionally provided with fluid level transmitter, flue-gas temperature transmitter and pressure difference
Transmitter；It is respectively used to monitor liquid level, temperature and the pressure difference inside described de- White Tower.
In a preferred embodiment, closed cooling tower 6 includes cooling tower ontology and is set to cooling tower body interior
Tank 61, heat exchange coil 62, third spray pump 63 and spray thrower 64；Heat exchange coil 62 is set to the inside of tank 61,
Spray thrower 64 is set to the inside of tank 61 and is located at 62 upper end of heat exchange coil；Third spray pump 63 is connected with spray thrower 64
Logical, third spray pump 63, which is used to for the water in tank 61 to be pumped into spray thrower 64, is sprayed onto heat exchange coil 62, realizes water storage
The circulation of water in pond 61；Condensation-water drain, heat exchange coil 62 and cooling water distributor 44 are sequentially connected logical.
The closed cooling tower 6 can reduce the temperature of cooling water and the cooling equipment that water quality is pure, while also have
There are following characteristics：It is adaptable, structure is simple, small in size, occupied area is small, cooling efficiency is high, connecting line is simple, engineering
Measure that small, installation and maintenance are easy to clean, water and electric saving (feeding spraying pump low lift and large flow rate, power of motor are small), operating cost are low, can
The features such as media, fire safety such as cooling high-temperature water, oils, liquid gasification class.
In a preferred embodiment, closed cooling tower 6 further includes at least one fan 65 (preferably 2), fan
65 are set to the top of tank 61 and are located at the upper end of spray thrower 64, for accelerating gas flow rate, heat are taken away, by cross upwards
Skim over heat exchange coil 62 and the air discharge body with amount of heat.
In a preferred embodiment, cooling tower 6 further includes water replanishing device 7, water replanishing device 7 and 61 inside phase of tank
Connection.The part shower water evaporated in closed cooling tower 6 is automatically replenished by the water compensating valve of water replanishing device 7.
On the other hand, this implementation also provides a kind of dry kiln gas of carbon black and takes off white technique, is dry using the carbon black of Fig. 1
Kiln gas, which takes off white device, to carry out taking off white technique, includes the following steps：
Ten thousand Nm of exhaust gas volumn about 20-22 by the fume collection from 1-6# carbon black drying oven, after summarizing3/ h, flue gas temperature
Degree is 170 DEG C, moisture content 42.23%, which is entered in GGH heat exchanger 3 tentatively heat exchange and is cooled to 125 DEG C, is then led to
Smoke inlet is crossed to enter in de- White Tower 4；
Into the bottom-up flowing of flue gas in de- White Tower 4, cooling water (about 40 DEG C) sprays downwards from cooling water distributor 44
It spills and enters 43 sections of packing layer, cooling water and smoke contacts make flue gas further cool down condensation, and flue-gas temperature is down to 60 DEG C, aqueous
Rate is down to 18.7%, and (amount of condensed water is about 34.5m to the condensed water in flue gas3/ h, temperature be 55 DEG C) be precipitated after be flowed into it is de-
It holds in flow container 41 4 lower end of White Tower；
Condensed flue gas continues up flowing, after demister 45, enters GGH heat exchanger 3 by exhanst gas outlet outflow
Heat exchange enters in chimney 46 after being warming up to 105 DEG C, is discharged into atmosphere via chimney 46；
The condensed water for holding the collection of flow container 41, which passes through after closed cooling tower 6 is further cooled to 40 DEG C, returns to cooling water distributor
44 carry out recycling.
In a preferred embodiment, (about 55 DEG C) of condensed water for holding the collection of flow container 41 enter in closed cooling tower 6
In heat exchange coil 61, the convected air that the water and fan 65 sprayed with the spray thrower 64 in closed cooling tower 6 generates, which is realized, to exchange heat
It is returned to after being cooled to 40 DEG C in cooling water distributor 44 and carries out recycling.
The visual white pollution that flue gas of the invention takes off white device and its technique can obviously remove smoke, especially in winter
Better effect is significant；It is recycled simultaneously using the condensed water that the device is collected, can about recycle water resource is
35m3/ h (as shown in table 1), considerably reduces production cost, has saved water resource.
Table 1：
Multiple element, ingredient, component or step can be provided by single integrated component, ingredient, component or step.Optionally
Ground, single integrated component, ingredient, component or step can be divided into multiple element, ingredient, component or the step of separation.It is used to
The open "a" or "an" for describing element, ingredient, component or step is not said to exclude other elements, ingredient, component
Or step.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of dry kiln gas of carbon black takes off white device, it is characterised in that：It includes heat exchange that the dry kiln gas of the carbon black, which takes off white device,
Device, de- White Tower and cooling tower；
Described de- White Tower includes tower body and chimney, and the chimney is located above the tower body and abuts against with the tower body；
Successively be laid with from bottom to top inside the tower body hold flow container, at least one recycle liquid distributor, at least one packing layer,
Cooling water distributor and demister；
The lower wall for holding the tower body at flow container is provided with smoke inlet and condensation-water drain；Positioned at the demisting
The upper side wall of the tower body above device is provided with exhanst gas outlet；
The heat exchanger is connected with the smoke inlet；The exhanst gas outlet is connected with the heat exchanger；The heat exchanger
It is connected with the chimney；The heat exchanger is connected with external carbon black drying oven；
The condensation-water drain is connected with the entrance of the cooling tower；The outlet of the cooling tower and the cooling water distributor
It is connected.
2. the dry kiln gas of carbon black according to claim 1 takes off white device, it is characterised in that：In the tower body of described de- White Tower
Including 2 recycle liquid distributors and 2 packing layers；The recycle liquid distributor and described filler layer successively replace from bottom to top cloth
Inside the tower body；
Preferably, described filler layer is the ceramic packing layer that Raschig ring and/or Pall ring form；
Preferably, fluid level transmitter, flue-gas temperature transmitter and pressure difference transmitter are additionally provided in described de- White Tower；It is respectively used to
Monitor liquid level, temperature and the pressure difference inside described de- White Tower.
3. the dry kiln gas of carbon black according to claim 1 takes off white device, it is characterised in that：It is set at the condensation-water drain
It is equipped with the first spray pump；The entrance of the condensation-water drain, first spray pump and the cooling tower is sequentially connected logical；
Preferably, second spray pump arranged side by side with first spray pump is provided at the condensation-water drain；Second spray
Leaching pump is connected with subsequent workshop section's device, for recycling condensed water as the water source in other workshops.
4. the dry kiln gas of carbon black according to claim 1 takes off white device, it is characterised in that：The dry kiln gas of the carbon black is de-
White device further includes increasing blower；External carbon black drying oven, the increasing blower and the heat exchanger is sequentially connected logical；
Preferably, the heat exchanger is GGH heat exchanger.
5. the dry kiln gas of carbon black according to claim 1 takes off white device, it is characterised in that：The cooling tower is that enclosed is cold
But tower, including cooling tower ontology and the tank, heat exchange coil, third spray pump and the spray that are set to the cooling tower body interior
Drench device；
The heat exchange coil is set to the inside of the tank, and the spray thrower is set to the inside of the tank and is located at
The heat exchange coil upper end；The third spray pump is connected with the spray thrower, and the third spray pump is used for the storage
Water in pond is pumped into the spray thrower for spraying the heat exchange coil, realizes the circulation of water in the tank；
The condensation-water drain, the heat exchange coil and the cooling water distributor are sequentially connected logical.
6. the dry kiln gas of carbon black according to claim 5 takes off white device, it is characterised in that：The cooling tower further include to
A few fan, the fan is set to the top of the tank and is located at the upper end of the spray thrower, for accelerating gas
Flow velocity takes away heat；
Preferably, the number of fans is 2.
7. the dry kiln gas of carbon black according to claim 5 takes off white device, it is characterised in that：The cooling tower further includes mending
It is connected inside water installations, the water replanishing device and the tank.
It is using the dry kiln gas of any one of the claim 1-7 carbon black 8. a kind of dry kiln gas of carbon black takes off white technique
It takes off white device to carry out taking off white technique, include the following steps：
Flue gas from carbon black drying oven enters tentatively heat exchange cooling in heat exchanger, then enters de- White Tower by smoke inlet
In；
Into the bottom-up flowing of flue gas in de- White Tower, cooling water sprays downwards from cooling water distributor enters filler interval,
Cooling water and smoke contacts make flue gas further cool down condensation, and the condensed water in flue gas is flowed into de- White Tower lower end after being precipitated
It holds in flow container；
Condensed flue gas continues up flowing, after demister, after entering heat exchanger heat exchange heating by exhanst gas outlet outflow
Into in chimney, it is discharged into atmosphere via chimney；
The condensed water for holding flow container collection, which passes through, returns to cooling water distributor progress recycling after cooling tower further cools down.
9. flue gas according to claim 8 takes off white technique, it is characterised in that：The condensed water for holding flow container collection enters cooling tower
In heat exchange coil in, in cooling tower spray thrower sprinkling water and fan generate convected air realize heat exchange cooling after return
Recycling is carried out into cooling water distributor.
10. flue gas according to claim 8 takes off white technique, it is characterised in that：Carbon black drying oven come out flue-gas temperature be
160 DEG C -180 DEG C, moisture content 40%-42.23%；120 DEG C -125 DEG C are cooled to by heat exchanger heat exchange；Flue gas is white into taking off
The flue-gas temperature after condensation exchanges is carried out with cooling water distributor water after tower and is down to 55 DEG C -60 DEG C, and moisture content is down to 16%-
18.7%；Flue gas is again passed by after heat exchanger heat exchange is warming up to 100 DEG C -105 DEG C and is discharged by chimney；
The temperature of the cooling water of cooling water distributor sprinkling is 38 DEG C -40 DEG C in de- White Tower；After being exchanged with flue gas condensing
The temperature of cooling water is 50 DEG C -55 DEG C；Cooling water is cooled to 38 DEG C -40 DEG C again and is recycled to cooling water distribution by cooling tower
In device.
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