RU2848000C1 - Reactor for the production of secondary technical carbon - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: invention can be used in the disposal of waste consisting of old tyres. The reactor contains a loading window (9) with a cover (10) on which a fastener (11) covered with heat-resistant material is installed, and a body (1) in which a combustion chamber (2), an air chamber (3) for supplying air, a chamber (4) for introducing gas and a reaction chamber (5). The loading window (9) with a cover (10) is located in the upper part of the combustion chamber (2). In the lower part of the combustion chamber (2), there are fasteners (8) for tyres made of heat-resistant material, made in the form of circular arcs with the possibility of vertical movement. The air chamber (3) is inclined towards the axis of the body (1), has an elliptical cross-section and contains swirlers (7) installed perpendicular to its inner surface, which are hollow cylinders. Nozzles (6) for pre-hardening and cooling the soot-gas mixture are installed in the reaction chamber (5).

EFFECT: invention allows old tyres to be used as raw material in the production of technical carbon.

1 cl, 3 dwg

Description

The invention relates to the carbon black industry, namely to a reactor for producing secondary carbon black from old tires.

A reactor for producing soot is known, comprising a sequentially and coaxially installed combustion chamber with means for burning fuel with air, a mixing nozzle with feedstock and water nozzles, and a reaction chamber with means for cooling and removing soot-gas products. Soot obtained from such a reactor is characterized by high reinforcing properties, but currently no longer satisfies the ever-increasing demands of industry [RU Patent No. 2097398, IPC C09C 1/48, published 27.11.1997].

The disadvantage of this reactor is the inability to use old tires as raw material.

The closest to the proposed invention is a reactor for the production of carbon black, comprising a housing in which a combustion chamber equipped with an air chamber for supplying air and a gas inlet chamber, mixing channels in which feedstock nozzles are installed, a reaction chamber for removing cooled soot and gas products, in which water nozzles are installed for pre-quenching and cooling the soot and gas mixture. The air chamber is inclined to the axis of the housing, has an elliptical cross-section and contains swirlers installed on the internal surfaces, made in the form of rings, the gas inlet chamber has a variable cross-section from circular, in the inlet zone, to square in the combustion chamber, and the mixing channels are shaped as truncated pyramids, the smaller bases of which are located on the side of the combustion chamber, and the feedstock nozzles are placed at an angle to the axes of the mixing channels [RU Patent No. 2828260, IPC C09C 1/48, published. 08.10.2024, BI No. 28].

The disadvantage of this reactor is the inability to use old tires as raw material.

The technical result of this invention is the creation of a reactor for the production of secondary carbon black, which allows the use of old tires as raw material.

The technical result is achieved by the fact that a reactor for the production of secondary carbon black is proposed, comprising a housing in which a combustion chamber is located, equipped with an air chamber for supplying air and a chamber for introducing gas, a reaction chamber in which nozzles are installed for pre-quenching and cooling the soot-gas mixture, the air chamber is inclined to the axis of the housing, has an elliptical cross-section and contains swirlers installed on the internal surfaces.

The distinctive design elements are that the lower part of the combustion chamber contains mounts for heat-resistant tires, made in the form of circular arcs with the possibility of vertical movement, and the upper part of the combustion chamber has a loading window with a lid on which a clamp covered with heat-resistant material is installed, the swirlers are made in the form of hollow cylinders installed perpendicular to the surface of the air chamber.

Fig. 1 shows a diagram of a reactor for the production of secondary carbon black.

Fig. 2 shows view A.

Fig. 3 shows view B.

A reactor for producing secondary carbon black comprises a housing 1 containing a combustion chamber 2 equipped with an air chamber 3 for supplying air and a chamber 4 for introducing gas, a reaction chamber 5 containing nozzles 6 for pre-quenching and cooling the soot-gas mixture, the air chamber 3 being inclined to the axis of the housing 1, having an elliptical cross-section and containing swirlers 7 mounted on its internal surfaces. In the lower part of the combustion chamber 2 there are mounts 8 for heat-resistant busbars made in the form of circular arcs with the possibility of vertical movement, and in the upper part of the combustion chamber 2 there is a loading window 9 with a cover 10 on which a retainer 11 covered with a heat-resistant material is mounted. The swirlers 7 are made in the form of hollow cylinders mounted perpendicular to the surface of the air chamber 3.

The reactor for producing secondary carbon black operates as follows.

Old car tires are used as raw material for producing secondary carbon black.

The tire to be disposed of is placed between the fasteners 8 in the combustion chamber through open lid 10. Lid 10 is closed, with clamp 11 holding the tire by its upper portion.

Preheated air enters combustion chamber 2 through air chamber 3, where it interacts with swirlers 7, which are hollow cylinders mounted perpendicular to the surface of air chamber 3, creating intense turbulence. Turbulence is also facilitated by the inclination of air chamber 3 to the axis of housing 1 and its elliptical cross-section.

Fuel gas is supplied to combustion chamber 2 through gas inlet chamber 4.

In combustion chamber 2, the tire undergoes thermal decomposition, releasing secondary carbon black. The process of releasing secondary carbon black continues in reaction chamber 5, which contains water nozzles 6 for pre-quenching and cooling the soot-gas mixture. The carbon black is then removed from the reactor.

Due to the fact that in the lower part of the combustion chamber 2 there are fastenings 8 for tires made of heat-resistant material, made in the form of circular arcs, it is possible to use old tires as raw material.

In order to use tires of different sizes, the 8 fasteners have the ability to move vertically.

Due to the fact that in the upper part of the combustion chamber 2 there is a loading window 9 with a cover 10, on which a retainer 11 is installed, covered with a heat-resistant material, the tire is held in a vertical position.

Swirlers 7 are made in the form of hollow cylinders installed perpendicular to the surface of the air chamber 3 and intensify the turbulence of the flow, which is necessary to increase the efficiency of the reactor, which uses old tires as raw material.

The proposed design of a reactor for the production of secondary carbon black allows the use of old tires as raw material.

Claims (1)

A reactor for producing secondary carbon black, comprising a housing in which a combustion chamber is located, equipped with an air chamber for supplying air and a chamber for introducing gas, a reaction chamber in which nozzles are installed for pre-quenching and cooling the soot-gas mixture, the air chamber is inclined to the axis of the housing, has an elliptical cross-section and contains swirlers installed on the internal surfaces, characterized in that in the lower part of the combustion chamber there are fastenings for tires made of heat-resistant material, made in the form of arcs of a circle with the possibility of vertical movement, and in the upper part of the combustion chamber there is a loading window with a lid on which a retainer is installed, covered with a heat-resistant material, the swirlers are made in the form of hollow cylinders installed perpendicular to the surface of the air chamber.