阅读说明：本技术 一种环流型炭黑反应炉 (Circulation type carbon black reacting furnace ) 是由 纪益彪 黄锡甫 周银春 邱燕云 于 2019-11-20 设计创作，主要内容包括：本发明公开了一种环流型炭黑反应炉,包括加热室和反应室,反应室包括第一反应炉和第二反应炉,第一反应炉的两侧设置有第二反应炉,第一反应炉与第二反应炉相连通,第二反应炉的前端固定有加热室,加热室与第二反应炉相连通,第一反应室的内部固定设置有增压导流装置,第一反应室的内部还设置有第一原料油喷头,第一原料油喷头的后端伸出第一反应炉,第一反应炉的后端密封；优点是在第一反应炉内设置有增压导流装置,增压导流装置的设置可使得从两侧进入到第一反应炉内的气流汇聚增压,使得第一反应炉升温较快、气流量较大,高温可使得原料油充分裂解生成炭黑。气流可减少生产的炭黑沉积附着在反应炉的内壁上,减少人工清理的次数,降低人工成本。(The invention discloses a circulation type carbon black reaction furnace, which comprises a heating chamber and a reaction chamber, wherein the reaction chamber comprises a first reaction furnace and a second reaction furnace, the two sides of the first reaction furnace are provided with the second reaction furnace, the first reaction furnace is communicated with the second reaction furnace, the front end of the second reaction furnace is fixedly provided with the heating chamber, the heating chamber is communicated with the second reaction furnace, the inside of the first reaction chamber is fixedly provided with a pressurization and diversion device, the inside of the first reaction chamber is also provided with a first raw oil nozzle, the rear end of the first raw oil nozzle extends out of the first reaction furnace, and the rear end of the first reaction furnace is sealed; the advantage is provided with pressure boost guiding device in first reacting furnace, and pressure boost guiding device's setting can make the air current that enters into first reacting furnace from both sides assemble the pressure boost for first reacting furnace intensification is very fast, the gas flow is great, and high temperature can make raw oil fully schizolysis generate carbon black. The airflow can reduce the deposition of the produced carbon black on the inner wall of the reaction furnace, reduce the times of manual cleaning and reduce the labor cost.)

1. A circulation type carbon black reaction furnace comprises a heating chamber and a reaction chamber, and is characterized in that the reaction chamber comprises a first reaction furnace and a second reaction furnace, the second reaction furnaces are fixedly arranged on both sides of the first reaction furnace, the second reaction furnaces on both sides of the first reaction furnace are centrosymmetric about the central axis of the first reaction furnace, the first reaction furnace is communicated with the second reaction furnace, the heating chambers are coaxially fixed at the front ends of the second reaction furnace, the heating chamber is communicated with the second reaction furnace, a pressurizing and flow guiding device is fixedly arranged in the first reaction chamber, the first reaction chamber is internally provided with a first raw oil spray nozzle, the rear end of the first raw oil spray nozzle extends out of the first reaction furnace, and the rear end of the first reaction furnace is sealed.

2. The circulating type carbon black reaction furnace as claimed in claim 1, wherein the second reaction furnace is fixedly provided with a plurality of second raw material oil spray heads which are uniformly distributed around the axis of the second reaction furnace, and the head parts of the second raw material oil spray heads extend into the second reaction furnace.

3. The circulating type carbon black reaction furnace as claimed in claim 1, wherein the front end of the heating chamber is fixed to the first reaction furnace, and the rear end of the heating chamber is further connected to a fuel nozzle for injecting fuel oil.

4. The circulating type carbon black reaction furnace of claim 1, wherein the pressurizing and guiding device comprises a hollow tube and a helical blade, the hollow tube and the helical blade are coaxially fixed, the helical blade is positioned outside the hollow tube, and the outer edge of the helical blade is fixed with the inner wall of the first reaction furnace.

5. The circulating type carbon black reaction furnace of claim 4, wherein the first raw oil nozzle is fixedly sleeved inside the hollow tube in a sealing manner, and the head of the first raw oil extends out of the hollow tube and is positioned inside the first reaction furnace.

6. The circulating type carbon black reaction furnace as claimed in claim 4, wherein a sealing plate is coaxially and fixedly disposed at the rear end of the hollow tube, the sealing plate is fixed to the spiral blade, and the sealing plate is hermetically fixed to the first reaction furnace.

7. The carbon black reacting furnace as set forth in claim 1, wherein the central axes of the second reacting furnaces disposed at both sides of the first reacting furnace are parallel to each other.

8. The carbon black reaction furnace according to claim 1, wherein the distance between the axes of the two second reaction furnaces is larger than the radius of the rear end portion of the first reaction furnace and smaller than the diameter of the rear end portion of the first reaction furnace.

9. The circulating type carbon black reactor as claimed in claim 1, wherein a quenching chamber is fixedly connected to the rear portion of the first reactor, a plurality of quenching nozzles are fixedly disposed in the quenching chamber and uniformly distributed around the central axis of the quenching chamber, and the head of each quenching nozzle extends into the quenching chamber.

Technical Field

The invention relates to the field of reaction furnaces, in particular to a circulating type carbon black reaction furnace.

Background

Carbon black is a carbon with no fixed shape, light and extremely fine black powder, and is a product obtained by incomplete combustion or thermal decomposition of a carbon-containing substance, i.e., raw material oil, such as coal, natural gas, oil, and the like. The carbon black has wide application, such as black fuel, printing ink, graphite, and can be used as an additive to be added into materials such as rubber to enhance the wear resistance, aging resistance and the like of the materials. The carbon black production process comprises gas black production, tank black production and furnace black production, wherein the gas black production mainly takes hydrocarbons as a main raw material, the tank black production mainly takes natural gas as a raw material, and the furnace black mainly takes oils as a raw material.

The existing furnace black production process mainly comprises the steps of adding oil serving as raw oil into a reaction furnace, heating the reaction furnace through combustion of combustible gas, decomposing the raw oil through high temperature to generate carbon black, wherein the difference of the temperature in the reaction furnace has important influence on the generation of the carbon black, and the particle sizes of the carbon black generated by the difference of the temperature in the reaction furnace are different. The existing carbon black reaction furnace mainly sprays raw oil into the reaction furnace through a nozzle during production, and the produced carbon black is mainly of a single variety. The carbon black reaction furnace comprises a heating chamber and a reaction chamber, the heating chamber, the reaction chamber and a subsequent quenching chamber of the existing carbon black reaction furnace are positioned on the same straight line, and a single heating source is adopted for heating. The single heating source is adopted for heating, so that the capacity of the carbon black reaction furnace is relatively low, and the problems of insufficient cracking and the upper limit of the capacity of the single reaction furnace can occur when the capacity needs to be improved. And when the heating chamber and the reaction chamber which are positioned on the same straight line adopt a single heating source to heat, the carbon black phase generated after cracking is transmitted only through the airflow pressure in the single heating chamber, and the pressure is insufficient at the moment, so that the carbon black generated by cracking is deposited or attached to the inner wall of the carbon black reaction furnace, the cleaning period of the reaction furnace is shortened, and the labor cost is increased.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: provides a circulation type carbon black reaction furnace which can effectively increase the capacity of the carbon black reaction furnace, can fully heat raw oil to decompose the raw oil to produce carbon black, can reduce the product adhesion to the inner wall of the reaction furnace and reduce the manual cleaning cost.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a circulation type carbon black reacting furnace, includes heating chamber and reacting chamber, the reacting chamber include first reacting furnace and second reacting furnace, the both sides of first reacting furnace all fixed be provided with the second reacting furnace, the second reacting furnace of first reacting furnace both sides be central symmetry about the axis of first reacting furnace, first reacting furnace with the second reacting furnace be linked together, the front end of second reacting furnace all coaxial be fixed with the heating chamber, just the heating chamber with the second reacting furnace be linked together, the fixed spiral pressure boost guiding device that is provided with in inside of first reacting chamber, the inside of first reacting chamber still be provided with first raw oil shower nozzle, the rear end of first raw oil shower nozzle stretch out first reacting furnace, the rear end of first reacting furnace sealed.

Preferably, the second reaction furnace is fixedly provided with a plurality of second raw oil spray heads which are distributed around the axis of the second reaction furnace, and the head parts of the second raw oil spray heads extend into the second reaction furnace.

Preferably, the front end of the heating chamber is fixed with the first reaction furnace, and the rear end of the heating chamber is also connected with a fuel oil spray head for spraying fuel oil.

Preferably, the pressurizing and flow guiding device comprises a hollow pipe and a helical blade, the hollow pipe and the helical blade are coaxially fixed, the helical blade is positioned at the outer side of the hollow pipe, and the outer edge of the helical blade is fixed with the inner wall of the first reaction furnace.

Preferably, the first raw oil spray head is fixedly sleeved in the hollow tube in a sealing manner, and the head of the first raw oil extends out of the hollow tube and is positioned in the first reaction furnace.

Preferably, a sealing plate is coaxially and fixedly arranged at the rear end of the hollow pipe, the sealing plate is fixed with the spiral blade, and the sealing plate is fixed with the first reaction furnace in a sealing manner.

Preferably, the central axes of the second reaction furnaces arranged at the two sides of the first reaction furnace are parallel to each other; can make the air current in the second reacting furnace be the heliciform along pressure boost guiding device and enter into the rapid cooling chamber, effectively avoid the rear end reposition of redundant personnel of the air current to first reacting furnace.

Preferably, the distance between the axes of the two second reaction furnaces is larger than the radius of the rear end part of the first reaction furnace and smaller than the diameter of the rear end part of the first reaction furnace; the spiral supercharging guide device has the advantages that the two second reaction furnaces are positioned at the upper side and the lower side of the first reaction furnace and correspond to the spiral supercharging guide device, and the phenomenon that airflow entering from the two sides of the first reaction furnace rushes towards the opposite direction and can not form circular flow and spiral advancing is avoided.

Preferably, the rear part of the first reaction furnace is also fixedly connected with a quenching chamber, the quenching chamber is fixedly provided with a plurality of quenching nozzles which are uniformly distributed around the central axis of the quenching chamber, and the heads of the quenching nozzles extend into the quenching chamber.

Compared with the prior art, the invention has the advantages that two sides of the first reaction furnace are respectively provided with the second reaction furnace, one end of the second reaction furnace is provided with the heating chamber, heat is transferred into the second reaction furnace through the heating chamber, and simultaneously, the second raw oil nozzle arranged in the second reaction furnace can spray raw oil into the second reaction furnace, thereby realizing the first-stage carbon black production. The first raw oil spray head is also arranged in the second reaction furnace, the carbon black of the second stage can be further produced after the raw oil is sprayed into the first reaction furnace through the first raw oil spray head, the second reaction furnaces arranged on two sides of the first reaction furnace can save production fields and increase the capacity of equipment, and further the cost is saved. The first reaction furnace is also internally provided with a pressurizing and flow guiding device which is spiral and can send the airflow entering the first reaction furnace from the second reaction furnace into the quenching chamber along the spiral. The arrangement of the pressurization flow guide device can lead the air flow entering the first reaction furnace from two sides to be converged and pressurized, thus leading the first reaction furnace to have faster temperature rise and larger air flow, and leading the raw oil sprayed from the first raw oil spray nozzle to be fully cracked to generate the carbon black at high temperature. Meanwhile, the produced carbon black can be timely sent into a quenching chamber for cooling after being generated by the air flow gathered in the first reaction furnace, and the gathered air flow can reduce the deposition of the produced carbon black on the inner wall of the reaction furnace, so that the manual cleaning frequency is reduced, and the labor cost is reduced. The pressurizing and flow guiding device is composed of a hollow tube and a propeller blade, the first raw oil nozzle is positioned at the central axis of the propeller blade and sprays out raw oil in an umbrella-shaped fog shape, and airflow blown out in a spiral shape is fully contacted with the umbrella-shaped raw oil, so that the raw oil is fully heated and cracked by heat blown out by the airflow to generate carbon black, and the working efficiency of the reaction furnace is improved.

Drawings

FIG. 1 is a schematic view of the overall mounting structure of the present invention;

FIG. 2 is a schematic view of the left side of FIG. 1;

FIG. 3 is a schematic sectional view of the second reaction furnace of FIG. 1 taken along the axis thereof;

FIG. 4 is a schematic sectional view of the first reactor of the present invention along its central axis;

fig. 5 is a schematic perspective view of the pressurization guiding device of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.