CN106495168B - A kind of method of dry white carbon - Google Patents
A kind of method of dry white carbon Download PDFInfo
- Publication number
- CN106495168B CN106495168B CN201611101383.7A CN201611101383A CN106495168B CN 106495168 B CN106495168 B CN 106495168B CN 201611101383 A CN201611101383 A CN 201611101383A CN 106495168 B CN106495168 B CN 106495168B
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- China
- Prior art keywords
- carbon black
- tail gas
- temperature
- white carbon
- wind
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Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
- F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/001—Heating arrangements using waste heat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The present invention relates to chemical seasoning fields, disclose a kind of device and method of dry white carbon.This method is using heat-exchange device, and the carbon black tail gas of the different temperatures section generated in carbon black process and cleaning wind are carried out heat exchange, obtain high-temperature cleaning wind, high-temperature cleaning wind dries white carbon as heat source.This method takes thermal process not pollute, the thermal efficiency is high using air and high temperature carbon black tail gas indirect heat exchange；The setting of back-up system, it is ensured that the supply of heat source is stablized needed for white carbon drying；It is low using equipment cost, technology maturation；The maximum effectiveness of resource is played, protects existing resource, while decrease the pollution to environment.
Description
Technical field
The present invention relates to chemical seasoning field, more particularly to a kind of method of dry white carbon.
Background technology
White carbon is hydrated SiO 2, and purposes is very extensive, makees the filler in plastics, rubber for alternative carbon black,
Improve tension intensity and wearability；Because its fine size, chemical property relatively stablize and it is wear-resistant when performances due to be used for coating；May be used also
For various fields such as toothpaste, pigment, medicine, food.As production scale expands, the variation of user demand etc. factor, in vain
The drying means that carbon black uses gradually changes, and drying means primarily now has pneumatic conveying drying, spray drying, expansion drying and stream
Change bed drying etc., or but existing drying process be using the tail gas of combustion of natural gas come convection drying white carbon or
Be to heat air using coal or natural gas is burnt, then white carbon dried with heating air, the heat source no matter dried be coal also
It is natural gas, is all a considerable energy consumption.
A large amount of waste heat tail gas can be generated in carbon black process, the temperature of these tail gas can generally achieve 1000 DEG C
Left and right, even the exhaust temperature come out from bag hose also reaches 180~200 DEG C, these high-temperature tail gas discharge capacitys are very big, not only
A large amount of wastes of heat are caused, and returns environment and brings serious pollution, at present, carbon black waste heat is mainly used for carbon black itself
Production, producing steam and power generation etc..Development " circular economy " can play the maximum effectiveness of resource, protect existing resource, extend
The input for utilizing the time, can also reducing resource of aggregate resource, is fully saved and using the energy, while decrease to environment
Pollution, therefore, by waste heat tail gas extra in carbon black process be applied in Drying Process For The Production of White Carbon have important meaning
Justice.
Invention content
In order to which solve that heat source in the drying process of the waste of carbon black waste heat tail gas of the prior art, white carbon consumes asks
Topic, the present invention provide a kind of method of dry white carbon.
To solve the above problems, the present invention provides following technical scheme：
A kind of method of dry white carbon, the drying device of use include air blower, heat-exchange device, mixer, hard charcoal
Black drying tower, combustor, waste heat boiler, control device, pressure sensor and temperature sensor；It is equipped with successively at carbon black tail gas
Air blower, heat-exchange device and the mixer being connected, white carbon drying tower and waste heat boiler are connected respectively with mixer,
Mixer in the access of white carbon drying tower and in the access of mixer and waste heat boiler with being respectively equipped with Pneumatic butterfly valve, tow channel gas
Dynamic butterfly valve realizes Staged cotrol by DCS system；
Specific drying means includes：Utilize the carbon black tail gas of different temperatures section generated in carbon black process, difference
The cleaning wind of carbon black tail gas and different pressures is subjected to heat exchange using heat-exchange device, high-temperature cleaning wind is obtained, utilizes high temperature
High-temperature cleaning wind is transported to white carbon drying tower drying white carbon by cleaning wind channel, and extra high-temperature cleaning wind is delivered to waste heat
Boiler, the pressure dependence such as following formula of the carbon black tail gas and cleaning wind of different temperatures section：
In formula, PLFor carbon black tail gas pressure；PHTo clean wind pressure, T before heat exchangeHFor carbon black tail gas temperature, TDAfter heat exchange
High-temperature cleaning air temperature, A are the coefficient that value is 0.62-0.74；
At carbon black tail gas and cleaning wind entrance is respectively equipped with pressure sensor and temperature sensor, and cleaning wind inlet is same
When be equipped with delivery pump, control device is by carbon black tail gas and pressure and temperature parameter that cleaning wind entrance obtains, utilizing conveying
It pumps and the wind pressure for cleaning wind is adjusted.
It in the white carbon underproduction or stops production, extra high-temperature cleaning wind is delivered to waste heat boiler.
The second back-up system using natural gas or coal gas as heat source is added in white carbon drying production line.
Add the first back-up system at the carbon black tail gas more than 550 DEG C, when equipment needs maintenance in carbon black process,
Start the first back-up system.
The carbon black tail gas that temperature is less than 300 DEG C is collected, carbon black tail gas of the temperature of burning less than 300 DEG C is obtained more than combustion
Gas will fire residual air using heat-exchange device and carry out heat exchange with cleaning wind.
Technical solution provided by the invention has the advantage that：Using air and carbon black high-temperature tail gas indirect heat exchange, hot mistake is taken
Journey does not pollute, and the thermal efficiency is high；The setting of back-up system, it is ensured that the supply of heat source is stablized needed for white carbon drying；Using
Equipment cost is low, technology maturation；The rational setting of control system selection, can play the maximum effectiveness of resource, protect existing money
Source, while decrease the pollution to environment.
Description of the drawings
Fig. 1 is the structure diagram of the drying white carbon device in embodiment 1 provided by the invention.
Specific embodiment
The invention discloses a kind of drying means of white carbon, those skilled in the art can use for reference present disclosure, suitably
Modified technique parameter is realized.In particular, it should be pointed out that all similar substitutions and modifications are for a person skilled in the art
It will be apparent that they are considered as including in the present invention.The method of the present invention and application have passed through preferred embodiment
Be described, related personnel significantly can not depart from the content of present invention, in spirit and scope to method described herein and should
With being modified or suitably change with combining, to realize and using the technology of the present invention.
A kind of method of dry white carbon, the drying device of use include air blower 1, heat-exchange device 2, mixer 3, white
Carbon black drying tower 4 and waste heat boiler 5；Additionally include control device, pressure sensor and temperature sensor；At carbon black tail gas
Equipped with being sequentially connected logical air blower, heat-exchange device and mixer, white carbon drying tower and waste heat boiler respectively with mixer
It is connected, the first gas is respectively equipped in the access of mixer and white carbon drying tower and in the access of mixer and waste heat boiler
6 and second Pneumatic butterfly valve 7 of dynamic butterfly valve, two-way Pneumatic butterfly valve realize Staged cotrol by DCS system 8.White carbon is produced at full capacity under operating mode, heat
Wind all supply white carbon dryings, DCS system control I standard-sized sheet of Pneumatic butterfly valve, Pneumatic butterfly valve II are fully closed；White carbon underproduction operating mode
Under, Pneumatic butterfly valve I and Pneumatic butterfly valve II are controlled by DCS system, white carbon drying takes how many with how many, and remaining hot wind is sent to remaining
Heat boiler；When white carbon stops production, all hot winds enter waste heat boiler.
Specific drying means includes：Using the carbon black tail gas 11 of the different temperatures section generated in carbon black process, divide
The cleaning wind of carbon black tail gas and different pressures is not subjected to heat exchange using heat-exchange device, obtains high-temperature cleaning wind 13, is exchanged heat
Low temperature carbon black tail gas 12 afterwards is discharged, and multichannel high-temperature cleaning wind 13 is transported to white carbon drying tower using high-temperature cleaning wind channel
Dry white carbon, extra high-temperature cleaning wind are delivered to waste heat boiler.The pressure of the carbon black tail gas of different temperatures section and cleaning wind
Relationship such as following formula：
In formula, PLFor carbon black tail gas pressure；PHTo clean wind pressure, T before heat exchangeHFor carbon black tail gas temperature, TDAfter heat exchange
High-temperature cleaning air temperature, A are the coefficient that value is 0.62-0.74；
At carbon black tail gas and cleaning wind entrance is respectively equipped with pressure sensor and temperature sensor, and cleaning wind inlet is same
When be equipped with delivery pump, control device is by carbon black tail gas and pressure and temperature parameter that cleaning wind entrance obtains, utilizing conveying
It pumps and the wind pressure for cleaning wind is adjusted.
In the white carbon underproduction or stopping production, extra hot wind can use the other hot cells of on-site, preferably,
Extra high-temperature cleaning wind is delivered to waste heat boiler.
Preferably, the present invention adds the first back-up system A at the carbon black tail gas more than 550 DEG C.
Preferably, white carbon drying tower is also additional using natural gas or coal gas as the second back-up system B of heat source.
Preferably, the variable-frequency motor of air blower selection energy flexible modulation air output.
With reference to specific embodiment, the present invention is further explained：
Embodiment 1
According to needs of production, hot spot is taken equipped with 5 tunnels in the carbon black tail gas burner position that temperature is 750 DEG C, wherein 1
Hot spot (the first back-up system) is taken as spare, 4 road of hot spot is taken to take heat simultaneously to remaining 4, utilizes heat-exchange device, 4 road charcoals
Wind indirect heat exchange is cleaned on 4 tunnels of the black tail qi leel not with air blower conveying, and 4 road high-temperature cleaning hot winds, 4 road high-temperature cleaning hot winds are made
Hot wind all the way is merged into mixer, when under the operating mode that white carbon is produced at full capacity, passes through DCS system and controls I standard-sized sheet of Pneumatic butterfly valve, gas
Dynamic butterfly valve II is closed, and hot wind all send to drying tower and dries white carbon.
Embodiment 2
Hot spot is taken, while take heat equipped with 6 tunnels in the carbon black tail gas burner position that temperature is 550 DEG C -800 DEG C, handed over using heat
Changing device, 5 tunnels of the 5 road carbon black tail gas respectively with air blower conveying clean wind indirect heat exchange, 5 road high-temperature cleaning hot winds, 5 tunnels are made
High-temperature cleaning hot wind merges into hot wind all the way in mixer, when under the operating mode of the white carbon underproduction, passes through DCS system control and opens
Pneumatic butterfly valve I and Pneumatic butterfly valve II, hot wind send all the way to drying tower and dry white carbon, this road is in high-temperature cleaning wind channel and hard charcoal
Turbo charging installation is equipped between black drying tower, high-temperature cleaning wind pressure is pressurized to 1.2-2.0 times.Another way is sent to waste heat pot
Stove.
Embodiment 3
It is that 900 DEG C of carbon black tail gas burner position takes hot spot equipped with 3 tunnels in temperature, wherein 1 conduct is spare to take hot spot, it is right
Remaining 2 take 2 road of hot spot to take heat simultaneously, and using heat-exchange device, 2 tunnels of the 2 road carbon black tail gas respectively with air blower conveying are cleaned
Wind indirect heat exchange, is made 2 road high-temperature cleaning hot winds, and 2 road high-temperature cleaning hot winds merge into hot wind all the way in mixer, work as hard charcoal
Under the operating mode of black halt production, II standard-sized sheet of Pneumatic butterfly valve and Pneumatic butterfly valve I is controlled to close by DCS system, hot wind is all sent to waste heat
Boiler generates steam in waste heat boiler, will generate steam and is incorporated to low-pressure steam pipe network.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (5)
- A kind of 1. method of dry white carbon, which is characterized in that the drying device of use includes air blower, heat-exchange device, mixes Clutch, white carbon drying tower, combustor, waste heat boiler, control device, pressure sensor and temperature sensor；In carbon black tail gas Place is equipped with and is sequentially connected logical air blower, heat-exchange device and mixer, and white carbon drying tower and waste heat boiler are respectively with mixing Device is connected, and is respectively equipped in the access of mixer and white carbon drying tower and in the access of mixer and waste heat boiler pneumatic Butterfly valve, two-way Pneumatic butterfly valve realize Staged cotrol by DCS system；Specific drying means includes：Using the carbon black tail gas of different temperatures section generated in carbon black process, it is utilized respectively The cleaning wind of carbon black tail gas and different pressures is carried out heat exchange by heat-exchange device, is obtained high-temperature cleaning wind, is utilized high-temperature cleaning High-temperature cleaning wind is transported to white carbon drying tower drying white carbon by wind channel, and extra high-temperature cleaning wind is delivered to waste heat pot Stove, the pressure dependence such as following formula of the carbon black tail gas and cleaning wind of different temperatures section：In formula, PLFor carbon black tail gas pressure；PHTo clean wind pressure, T before heat exchangeHFor carbon black tail gas temperature, TDFor high temperature after heat exchange Air temperature is cleaned, A is the coefficient that value is 0.62-0.74；At carbon black tail gas and cleaning wind entrance is respectively simultaneously equipped with pressure sensor and temperature sensor, and it is same to clean wind inlet When be equipped with delivery pump, control device is by carbon black tail gas and pressure and temperature parameter that cleaning wind entrance obtains, utilizing conveying It pumps and the wind pressure for cleaning wind is adjusted.
- 2. the method for dry white carbon according to claim 1, it is characterised in that：In the white carbon underproduction or halt production situation Under, extra high-temperature cleaning wind is delivered to waste heat boiler.
- 3. the method for dry white carbon according to claim 1, it is characterised in that：In white carbon drying production line add with Natural gas or the second back-up system that coal gas is heat source.
- 4. the method for dry white carbon according to claim 1, it is characterised in that：At the carbon black tail gas more than 550 DEG C Additional first back-up system when equipment needs maintenance in carbon black process, starts the first back-up system.
- 5. the method for dry white carbon according to claim 1, it is characterised in that：Collect the carbon black that temperature is less than 300 DEG C Tail gas, carbon black tail gas of the temperature of burning less than 300 DEG C obtain combustion residual air, will fire residual air and cleaning wind using heat-exchange device Carry out heat exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611101383.7A CN106495168B (en) | 2016-12-05 | 2016-12-05 | A kind of method of dry white carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611101383.7A CN106495168B (en) | 2016-12-05 | 2016-12-05 | A kind of method of dry white carbon |
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| CN106495168A CN106495168A (en) | 2017-03-15 |
| CN106495168B true CN106495168B (en) | 2018-06-26 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425881A (en) * | 2011-11-30 | 2012-04-25 | 金能科技有限责任公司 | Waste heat utilization method and waste heat utilization system of tail gas in production of carbon black |
| CN202993782U (en) * | 2012-12-02 | 2013-06-12 | 龙星化工股份有限公司 | Hot blast heater for drying white carbon black |
| CN204830803U (en) * | 2015-06-05 | 2015-12-02 | 韩城黑猫炭黑有限责任公司 | Carbon black tail gas fires burning furnace waste heat cyclic utilization device |
-
2016
- 2016-12-05 CN CN201611101383.7A patent/CN106495168B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425881A (en) * | 2011-11-30 | 2012-04-25 | 金能科技有限责任公司 | Waste heat utilization method and waste heat utilization system of tail gas in production of carbon black |
| CN202993782U (en) * | 2012-12-02 | 2013-06-12 | 龙星化工股份有限公司 | Hot blast heater for drying white carbon black |
| CN204830803U (en) * | 2015-06-05 | 2015-12-02 | 韩城黑猫炭黑有限责任公司 | Carbon black tail gas fires burning furnace waste heat cyclic utilization device |
Non-Patent Citations (2)
| Title |
|---|
| 浅析炭黑尾气的余热回收与利用;张佳;《科技创新导报》;20151231(第3期);第106-107页 * |
| 炭黑烟气余热的回收利用;曲波;《天津化工》;20030731;第17卷(第4期);第37-38、61页 * |
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| CN106495168A (en) | 2017-03-15 |
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