JPH03227374A - Apparatus for producing carbon black - Google Patents
Apparatus for producing carbon blackInfo
- Publication number
- JPH03227374A JPH03227374A JP1907990A JP1907990A JPH03227374A JP H03227374 A JPH03227374 A JP H03227374A JP 1907990 A JP1907990 A JP 1907990A JP 1907990 A JP1907990 A JP 1907990A JP H03227374 A JPH03227374 A JP H03227374A
- Authority
- JP
- Japan
- Prior art keywords
- combustion chamber
- carbon black
- combustion
- chamber
- coke
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000006229 carbon black Substances 0.000 title claims abstract description 31
- 238000002485 combustion reaction Methods 0.000 claims abstract description 43
- 238000004519 manufacturing process Methods 0.000 claims abstract description 25
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims description 14
- 239000007921 spray Substances 0.000 claims description 13
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 239000000571 coke Substances 0.000 abstract description 16
- 239000000567 combustion gas Substances 0.000 abstract description 14
- 239000000446 fuel Substances 0.000 abstract description 8
- 230000003247 decreasing effect Effects 0.000 abstract description 3
- 230000003313 weakening effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 238000009826 distribution Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000011280 coal tar Substances 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 241000872198 Serjania polyphylla Species 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/44—Carbon
- C09C1/48—Carbon black
- C09C1/50—Furnace black ; Preparation thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はカーボンブラック製造装置に係り、詳しくはカ
ーボンブラックを製造する際のコークス分生成が少ない
装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a carbon black production apparatus, and more particularly to an apparatus that produces less coke when producing carbon black.
工業的に広〈実施されているカーボンブランク製造方法
として、円筒型の反応炉内の燃焼ガス熱風中に原料炭化
水素を噴霧し、熱分解してカーボンブラックとするファ
ーネス式カーボンブラック製造方法がある。ファーネス
式カーボンブラック製造方法の利点は、はぼ密閉した装
置で連続的に製造できて、収率が高いことであり、工業
的に実施する際には極めて有利である。As a method for producing carbon blanks that is widely used in industry, there is a furnace-type carbon black production method in which raw hydrocarbons are sprayed into a hot stream of combustion gas in a cylindrical reactor and thermally decomposed to produce carbon black. . The advantage of the furnace method for producing carbon black is that it can be produced continuously in a nearly closed device and has a high yield, which is extremely advantageous when it is carried out industrially.
ところが、運転中に反応炉内でコークス分が生成すると
、得られるカーボンブラックの品質に悪影響をおよぼす
ため、定期的に運転を中止して反応炉内の側壁に付着し
たコークス分を取り除く必要があり、反応炉内でのコー
クス分の生成を極力低減して、運転を中止する頻度を低
くすることが望まれている。However, if coke is generated in the reactor during operation, it will have a negative effect on the quality of the carbon black obtained, so it is necessary to periodically stop the operation and remove the coke that has adhered to the side walls of the reactor. It is desired to reduce the generation of coke in the reactor as much as possible to reduce the frequency of stopping operations.
本発明の目的は、カーボンブラックを製造する際に、反
応炉内でのコークス分の生成が少ないファーネス式カー
ボンブラック製造用装置を提供することにある。An object of the present invention is to provide a furnace-type carbon black production apparatus that generates less coke in a reactor when producing carbon black.
本発明者は、上記のような課題を解決するために研究を
行い、反応炉の燃焼室から反応室内に流入する燃焼ガス
の旋回を弱めることによりコークス分の生成を低減でき
ることおよび燃焼室の上流側に予備燃焼室を設けること
により燃焼ガスの旋回を弱められることを見出し本発明
を完成した。The present inventor conducted research to solve the above-mentioned problems, and found that the generation of coke can be reduced by weakening the swirl of combustion gas flowing into the reaction chamber from the combustion chamber of the reactor, and that They discovered that the swirl of combustion gas could be weakened by providing a preliminary combustion chamber on the side, and completed the present invention.
すなわち、本発明は、燃焼室、絞り部、拡大テーパー部
および反応室を同一軸上に配列したカーボンブラック製
造装置において、燃焼室上流端壁の軸方向に予備燃焼室
を設置したことを特徴とするカーボンブラック製造装置
である。That is, the present invention is characterized in that in a carbon black manufacturing apparatus in which a combustion chamber, a throttle section, an expanding taper section, and a reaction chamber are arranged on the same axis, a pre-combustion chamber is installed in the axial direction of the upstream end wall of the combustion chamber. This is a carbon black manufacturing equipment.
以下、本発明のカーボンブラック製造装置の実施例を示
す第１図および第２図に基づいて本発明の詳細な説明す
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to FIGS. 1 and 2 showing embodiments of a carbon black manufacturing apparatus of the present invention.
第１図は本発明カーボンブラック製造装置の概略断面図
である。第２図は第１図に示した製造装置の上流側から
見た正面図である。FIG. 1 is a schematic cross-sectional view of the carbon black manufacturing apparatus of the present invention. FIG. 2 is a front view of the manufacturing apparatus shown in FIG. 1, viewed from the upstream side.
第１図中、１は予備燃焼室であり、上流端壁中央部には
燃料噴霧口２が設けられており、側壁には空気導入口３
が接線方向に設けられている。本発明において予備燃焼
室に設ける空気導入口の設置方向・設置角度は任意であ
り、接線方向に設ける場合に限られないが、接線に設け
るのが好ましい。予備燃焼室１内では、燃料と空気とが
反応して予備燃焼ガスが生成する。なお、燃料の導入は
、燃料噴霧口２を通して、先端が噴霧ノズルになってい
る噴霧管を挿入して行うことができる。In Fig. 1, 1 is a pre-combustion chamber, in which a fuel spray port 2 is provided in the center of the upstream end wall, and an air inlet port 3 is provided in the side wall.
is provided in the tangential direction. In the present invention, the installation direction and installation angle of the air inlet provided in the pre-combustion chamber are arbitrary, and although it is not limited to the case where it is provided in the tangential direction, it is preferable to provide it in the tangential direction. In the pre-combustion chamber 1, fuel and air react to generate pre-combustion gas. Note that the fuel can be introduced by inserting a spray pipe whose tip is a spray nozzle through the fuel spray port 2.
予備燃焼室１末端部には燃焼室４が連通しており、予備
燃焼室ｌ内で生成した予備燃焼ガスは、空気導入口３か
ら導入される空気の流れに従って旋回しながら燃焼室４
内に流入する。燃焼室４側壁には空気導入口５−Ｌ ５
−２が設けられている。燃焼室４側壁に設ける空気導入
口の設置方向・設置角度は任意であるが、予備燃焼室１
の空気導入口と逆向きの接線方向すなわち予備燃焼室１
から流入してくる予備燃焼ガスの旋回と逆向きの接線方
向に設けるのが、ガス流の旋回を弱める点で好ましい。A combustion chamber 4 is connected to the end of the pre-combustion chamber 1, and the pre-combustion gas generated in the pre-combustion chamber 1 flows into the combustion chamber 4 while swirling according to the flow of air introduced from the air inlet 3.
flow inside. Air inlet 5-L 5 on the side wall of the combustion chamber 4
-2 is provided. The installation direction and installation angle of the air inlet provided on the side wall of the combustion chamber 4 are arbitrary, but
tangential direction opposite to the air inlet of the pre-combustion chamber 1
It is preferable to provide it in the tangential direction opposite to the swirl of the pre-combustion gas flowing in from the viewpoint of weakening the swirl of the gas flow.
燃焼室４内では、予備燃焼室１内から流入した予備燃焼
ガスの燃焼反応がすすみ高温の燃焼ガス熱風となる。In the combustion chamber 4, the combustion reaction of the pre-combustion gas that has flowed in from the pre-combustion chamber 1 progresses, resulting in high-temperature combustion gas hot air.
燃焼室４末端部は筒状絞り部６および拡大テーパー部７
を介して反応室８に連通している。絞り部６の最も狭い
部分の軸に対して垂直方向の断面積は燃焼室４の断面積
および反応室８の断面積よりも狭い、絞り部６から反応
室８にかけての側壁には複数の原料噴霧口９−１．９−
２．９−３．９−４．９−５が軸方向に分割して側壁に
対して垂直方向に設けられており、必要に応じて中心部
に向けて原料を導入できる。原料噴霧口の設置数・設置
位置は任意であるが、カーボンブラックの粒子径分布や
凝集体径分布を＠御しやすい点およびコークス分の生成
低減の点から、絞り部以降の側壁に軸方向に分割して複
数設けるのが好ましい。The end portion of the combustion chamber 4 has a cylindrical throttle portion 6 and an enlarged tapered portion 7.
It communicates with the reaction chamber 8 via. The cross-sectional area of the narrowest part of the throttle part 6 in the direction perpendicular to the axis is narrower than the cross-sectional area of the combustion chamber 4 and the cross-sectional area of the reaction chamber 8. On the side wall from the throttle part 6 to the reaction chamber 8, there are a plurality of raw materials. Spray port 9-1.9-
2.9-3.9-4.9-5 are divided in the axial direction and provided perpendicularly to the side wall, so that raw materials can be introduced toward the center if necessary. The number and position of the raw material spray ports are arbitrary, but from the viewpoint of easy control of the particle size distribution and aggregate size distribution of carbon black, and from the viewpoint of reducing the generation of coke, we installed spray ports in the axial direction on the side wall after the constriction part. It is preferable to provide a plurality of them by dividing them into two.
原料の導入は、原料噴霧口９−１．９−２．９−３．９
−４．９−５を通して、先端がノズルになっている噴霧
管を挿入して行うことができる。なお、カーボンブラッ
クを製造する際に、原料を導入する原料噴霧口の位置や
各原料噴霧口からの原料導入量を変更することにより、
得られるカーボンブランクの粒子径分布や凝集体径分布
を＠御できる。The raw material is introduced through the raw material spray port 9-1.9-2.9-3.9
This can be done by inserting a spray tube with a nozzle at the tip through -4.9-5. In addition, when manufacturing carbon black, by changing the position of the raw material spray port where the raw material is introduced and the amount of raw material introduced from each raw material spray port,
The particle size distribution and aggregate size distribution of the resulting carbon blank can be controlled.
反応室８下流側側壁には冷却水噴霧口１０が複数設けら
れ急速冷却室１）になっており、反応室８内で生成した
カーボンブラックは急速冷却室１）で冷却される。急速
冷却室１）の末端部は煙道１２の上流端に連通している
。A plurality of cooling water spray ports 10 are provided on the downstream side wall of the reaction chamber 8 to form a rapid cooling chamber 1), and the carbon black produced within the reaction chamber 8 is cooled in the rapid cooling chamber 1). The end of the rapid cooling chamber 1) communicates with the upstream end of the flue 12.
本発明の製造装置を用いてカーボンブランクを製造する
際、予備燃焼室１の空気導入口３および燃焼室４の空気
導入口５−１．５−２から導入する空気の量は任意に選
べるが、燃焼ガス熱風の温度等を考慮しながら絞り部６
および拡大テーパー部７を通過して反応室８に入る燃焼
ガス熱風の旋回を効率よく低減できる量を選択するのが
よい。When manufacturing a carbon blank using the manufacturing apparatus of the present invention, the amount of air introduced from the air inlet 3 of the pre-combustion chamber 1 and the air inlet 5-1, 5-2 of the combustion chamber 4 can be arbitrarily selected. , the throttle part 6 while taking into consideration the temperature of the combustion gas hot air, etc.
It is preferable to select an amount that can efficiently reduce swirling of the combustion gas hot air that passes through the enlarged taper portion 7 and enters the reaction chamber 8.
目安としては、拡大テーパー部での燃焼ガス熱風の旋回
の程度を示す値であるスワール数（Ｓｗ＝ｍｖ／ｍ’
ｖ’ ）を、ｌＸｌ０−’〜１０好ましくは５ Ｘ
ｌ Ｏ−”−Ｉ Ｘ １０−’とするのがよい。スワー
ル数がこの範囲を超えて大きい場合、コークス分が生成
しゃい。逆に、この範囲を超えて小さくすることは運転
効率の点で難しい。ここで、ｍｖはガスの接線方向の運
動量、ｍ’ ｖ’ は軸方向の運動量を示す。。As a guideline, the swirl number (Sw = mv/m'
v'), lXl0-' to 10 preferably 5X
It is preferable to set the swirl number to 10-'.If the swirl number is larger than this range, coke will be generated.On the other hand, reducing the swirl number beyond this range is bad for operational efficiency. Here, mv is the momentum of the gas in the tangential direction, and m'v' is the momentum of the gas in the axial direction.
なお、本発明でいう空気とは、大気の他、窒素やアルゴ
ン等の不活性ガス又は大気と酸素とを任意の割合で混合
した酸素含有ガス等を含む。Note that the air in the present invention includes, in addition to the atmosphere, an inert gas such as nitrogen or argon, or an oxygen-containing gas obtained by mixing the atmosphere and oxygen in an arbitrary ratio.
本発明者の知見によると、本発明の装置を用いてカーボ
ンブラックを製造する場合は、燃料の燃焼が予備燃焼室
と燃焼室との二段階で行われることおよび燃焼室と反応
室との間に設けた絞り部と拡大テーパー部との作用によ
り、燃焼室で生成する燃焼ガス熱風の旋回を小さくする
ことができ、反応炉内でのコークス分生成を低減するこ
とができるものと考えられる。According to the findings of the present inventor, when producing carbon black using the apparatus of the present invention, combustion of fuel is performed in two stages, a preliminary combustion chamber and a combustion chamber, and a gap between the combustion chamber and the reaction chamber. It is thought that by the action of the constricted part and the enlarged taper part provided in the reactor, the swirling of the combustion gas hot air generated in the combustion chamber can be reduced, and the generation of coke in the reactor can be reduced.
実施例
第１図に示したカーボンブラック製造装置を用いて、筒
状絞り部６側壁に設けた原料噴霧口９−１および拡大テ
ーパー部７中央部側壁に設けた原料噴霧口９−３からの
原料導入量を変えてカーボンブランクを製造したところ
、いずれも反応炉内でのコークス分の生成が見られず、
長時間にわたって品質の安定したカーボンブラックを製
造することができた。Example Using the carbon black manufacturing apparatus shown in FIG. When carbon blanks were manufactured by varying the amount of raw materials introduced, no coke was produced in the reactor in any case.
It was possible to produce carbon black with stable quality over a long period of time.
ただし、原料および燃料としてはコールタール系重質油
を用い、全体としての原料導入量は３５ＯＮ／時、燃料
導入量は１００Ｎ／時とし、予備燃焼室１の空気導入口
３からの空気導入量は１０００〜１ｌ１００Ｎ／時、燃
焼室４の空気導入口５−１．５−２からの空気導入量は
それぞれ２００〜３０ＯＮイ／時とした。However, coal tar-based heavy oil is used as the raw material and fuel, the total amount of raw material introduced is 35 ON/hour, the amount of fuel introduced is 100 N/hour, and the amount of air introduced from the air inlet 3 of the pre-combustion chamber 1. The amount of air introduced from the air inlet 5-1.5-2 of the combustion chamber 4 was 200 to 30 ON/hour, respectively.
第１表に原料として用いたコールタール系重質油の性状
及び組成を示す。Table 1 shows the properties and composition of the coal tar-based heavy oil used as a raw material.
第１表
＊ Ｂ Ｍ ＣＩ ＝Ｂｕｒｅａｕ ｏｆ Ｍｉｎｅｓ
Ｃｏｒｒｅｌａｔｉｏｎ Ｉｎｄｅｘ比較例１
予備燃焼室１内に旋回羽根を設置し予備燃焼ガス流のス
パイラルフローを強めてカーボンブラックを製造したと
ころ、運転開始後４時間で、得られるカーボンブラック
にコークス分が混入するようになった。運転貴中止して
反応炉内を観察したところ、反応室８側壁の広範囲にわ
たってコークス分が付着していた。Table 1 * B M CI = Bureau of Mines
Correlation Index Comparative Example 1 When carbon black was manufactured by installing a swirl vane in the pre-combustion chamber 1 and strengthening the spiral flow of the pre-combustion gas flow, coke content was mixed into the obtained carbon black 4 hours after the start of operation. It became so. When the operation was stopped and the inside of the reactor was observed, it was found that coke was deposited over a wide area on the side wall of the reaction chamber 8.
比較例２
予備燃焼室１を燃焼室４（１）壁の接線方向に設けた装
置（第３図）を用いて実施例と同じ条件でカーボンブラ
ックを製造したところ、運転開始直後から、コークス分
の生成が認められ、運転を中止しなければならなかった
。Comparative Example 2 When carbon black was manufactured under the same conditions as in the example using a device (Fig. 3) in which the pre-combustion chamber 1 was installed in the tangential direction of the wall of the combustion chamber 4 (1), immediately after the start of operation, the amount of coke decreased. was observed, and the operation had to be stopped.
本発明のカーボンブランク製造装置によればカーボンブ
ラックを製造する際のコークス分生成が少ないので、長
時間にわたって安定した品質のカーボンブランクを製造
することができる。According to the carbon blank manufacturing apparatus of the present invention, a small amount of coke is generated when manufacturing carbon black, so that a carbon blank with stable quality can be manufactured over a long period of time.
第１図は本発明実施例のカーボンブラック製造装置の概
略断面図である。第２図は第１図に示したカーボンブラ
ック製造装置の上流側から見た正面図である。第３図は
比較例２のカーボンブラック製造装置の概略断面図であ
る。FIG. 1 is a schematic sectional view of a carbon black manufacturing apparatus according to an embodiment of the present invention. FIG. 2 is a front view of the carbon black manufacturing apparatus shown in FIG. 1, viewed from the upstream side. FIG. 3 is a schematic cross-sectional view of a carbon black manufacturing apparatus of Comparative Example 2.
Claims (3)
同一軸上に配列したカーボンブラック製造装置において
、燃焼室上流端壁の軸方向に予備燃焼室を設置したこと
を特徴とするカーボンブラック製造装置。(1) A carbon black manufacturing apparatus in which a combustion chamber, a throttle section, an enlarged taper section, and a reaction chamber are arranged on the same axis, and a preliminary combustion chamber is installed in the axial direction of the upstream end wall of the combustion chamber. Manufacturing equipment.
記載のカーボンブラック製造装置。(2) Claim 1 having a raw material spray port on the side wall after the constriction part.
The carbon black manufacturing apparatus described.
において、予備燃焼室の空気導入口と燃焼室の空気導入
口とが逆向きの接線方向に設けられていることを特徴と
するカーボンブラック製造装置。(3) The carbon black manufacturing apparatus according to claim 1 or 2, wherein the air inlet of the pre-combustion chamber and the air inlet of the combustion chamber are provided in opposite tangential directions. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019079A JP2564675B2 (en) | 1990-01-31 | 1990-01-31 | Carbon black production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019079A JP2564675B2 (en) | 1990-01-31 | 1990-01-31 | Carbon black production equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03227374A true JPH03227374A (en) | 1991-10-08 |
| JP2564675B2 JP2564675B2 (en) | 1996-12-18 |
Family
ID=11989435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2019079A Expired - Fee Related JP2564675B2 (en) | 1990-01-31 | 1990-01-31 | Carbon black production equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2564675B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS547633A (en) * | 1977-06-20 | 1979-01-20 | Katsuji Tsuchiya | Water boiler |
| JPS6234272A (en) * | 1985-08-08 | 1987-02-14 | Fujitsu Ltd | Automatic numbering system |
-
1990
- 1990-01-31 JP JP2019079A patent/JP2564675B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS547633A (en) * | 1977-06-20 | 1979-01-20 | Katsuji Tsuchiya | Water boiler |
| JPS6234272A (en) * | 1985-08-08 | 1987-02-14 | Fujitsu Ltd | Automatic numbering system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2564675B2 (en) | 1996-12-18 |
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