A single-horizontal tubular carbonaceous intermediate continuous heat treatment device

Abstract

The invention relates to a single-horizontal tubular carbonaceous intermediate continuous heat treatment device, which includes a feeding system, a heating section, a cooling section, an exhaust system and a discharging system connected in sequence; the feeding system is a cone with a funnel opening at the bottom The silo and the feeder; the feeding system, the heating section, the cooling section and the discharge system are all connected through the sensor circuit and the measurement and control system; the two ends of the horizontal tube of the heating section have a long cylinder closed with a cover. The cross-section of the cylindrical cylinder is a symmetrical straight side left and right, and a semicircular arc side symmetrical up and down; a first screw rod is placed in the lower semicircular side of the entire elongated cylinder, and the above cooling section is a two A metal long cylinder with a cover at the end; a sandwich water jacket on the outside of the metal long cylinder; the invention is aimed at the treatment of carbonaceous intermediate materials mainly composed of powder or small particles, and has low energy consumption, low cost and simple operation , Minimize pollution.

Description

technical field [0001] The invention relates to a single-horizontal tubular carbonaceous intermediate continuous heat treatment device, which is mainly used for continuous heat treatment of carbonaceous intermediate materials mainly composed of powder or small particles, and the device can meet the requirements of isolating air and removing air when the material is heated. The requirements of flammable volatile components, more specifically, its main application field is the carbonization treatment of lithium-ion battery negative electrode material intermediates. Background technique [0002] In the industrial production of carbon anode materials for lithium-ion batteries, it is often necessary to heat-treat carbonaceous intermediates at around 1000 °C, which is usually called carbonization treatment in the industry, and the corresponding equipment is called carbonization furnace. Some types of carbonaceous intermediates can be directly used or sold as negative electrode pro...

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Problems solved by technology

[0004] As a heat treatment device for carbonaceous intermediate materials mainly composed of powder or small particles, the pusher kiln has many shortcomings that are difficult to overcome: 1. The loss of heating elements and crucibles is large, and the operation and maintenance costs of equipment are large; 2. The heat treatment of carbonaceous intermediate materials is indirect heating, and the heating of the push plate and the crucible is ineffective heating, with low thermal efficiency and high energy consumption.

3. The use of a large amount of inert protective gas further increases the production cost; 4. Manual loading and discharging of the crucible is cumbersome to operate and pollutes, which increases the workload of the operator and is not conducive to the health of the operator; 5. , The volatile matter produced by high-volatile materials will deposit carbon on the heating elements of the pusher kiln at high temperatures, resulting in frequent damage to the heating elements, so the pusher kiln cannot process high-volatile materials

[0005] As a heat treatment device for carbonaceous intermediate materials mainly composed of powder or small particles, the well-type furnace has obvious disadvantages: 1. Intermittent operation, long production cycle, unable to achieve large-scale continuous production, unit equipment Low production capacity; 2. In each production process, the heating of the furnace by its heating device is also ineffective heating, which results in a large waste of energy and low thermal efficiency; 3. The furnace is repeatedly cooled and heated rapidly, resulting in a common service life of the furnace 4. Since most of the furnaces are in the form of deep wells, the operation process is cumbersome and full of dust, so there are also situations in which the operator has a large workload and is not conducive to the health of the operator

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