Bucket production line device and method for crushing aluminum oxide crusting blocks

Abstract

The invention discloses a bucket production line device and a method for crushing aluminum oxide crusting blocks. A material is subjected to primary crushing on a production line, then the material feeding granularity is less than or equal to 300mm, the material discharging granularity is less than or equal to 4mm, and the standard material discharging granularity which can be reached by traditional two-time crushing and three-time crushing is reached. The automatic operation of the whole production line is controlled through an electric control system, so the production efficiency is improved, the consumption is reduced, the aluminum oxide crusting blocks are timely recycled, the failure and the maintenance are reduced, and the labor intensity of workers is reduced. The bucket production line device consists of a mechanical part and an electric control part, wherein the mechanical part consists of a crusher, a first iron remover, a conveyor, a raw material cabin, a gate valve, a vibration feeding machine, a pulverizer, a bucket, a second iron remover, a vibrating screen, a bag dust collector, an exhaust fan and a finished product cabin. The method for crushing the aluminum oxide crusting blocks sequentially comprises the following steps of: feeding the material, pulverizing the material, separating the material, collecting dust and storing the material. The device is simple in structure; the method is simply and quickly performed; energy is saved; the efficiency is high; and the device is safe and environment-friendly.

Description

technical field [0001] The invention relates to a device and a method of a crushing production line, in particular to a device and a method of a bucket lifting production line for crushing alumina crust blocks. Background technique [0002] In recent years, the electrolytic aluminum industry has developed rapidly. Statistics show that since 2001, the domestic demand for electrolytic aluminum has grown at a rate of 1 million tons per year; by the end of 2003, the production capacity of electrolytic aluminum had reached 8.34 million tons; by 2008, electrolytic aluminum The production capacity has reached 12.5 million tons. With the rapid growth of electrolytic aluminum production in my country, the amount of alumina crusts left over by electrolytic aluminum enterprises in production has also increased. However, the research and development status of domestic alumina crust crushing technology is limited to the rectification and improvement of individual equipment. For example,...

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Problems solved by technology

[0003] 1. Use a crusher to crush the alumina crusts into the required particle size, convey the crushed alumina particles to the screen for filtration through the conveyor, and crush the unfiltered large particles with the crusher and then screen until The crushed alumina particles can pass through the screen, that is, the current multi-stage crushing; but in this process, the equipment failure rate is high, the maintenance cost is high, and the liner of the crushing equipment is not wear-resistant, which reduces the operation rate of the equipment

During the operation of the whole system, the dust of the materials is relatively large, the site environment cannot meet the environmental protection requirements, and the working environment of the workers is poor.

[0004] 2. Use Raymond mill to grind alumina crust into powder, but there are problems of low efficiency and poor material control, which are mainly reflected in 1. When the hardness of alumina crust is high, Raymond mill can grind The speed is too slow, and the Raymond mill itself is also severely worn; 2. When the water content of the alumina crust is large, it is easy to adhere to the Raymond mill, and it is also easy to block during the feeding and conveying process, resulting in Raymond The production capacity of the mill is reduced; 3. When the fineness of the alumina crust block is required to be high, the Raymond mill has a small grinding capacity; 4. When the alumina crust block is mixed with fine powder before grinding, it needs Pass through a sieve in advance; otherwise, these fine powders are easy to adhere in the Raymond mill and affect the transportation of the ground material; 5. The structure of the Raymond mill itself, the wear resistance of the hammer head and the jaw plate determine the Raymond mill The grinding capacity of the Mongolian mill, so it is difficult to adapt to the development requirements of large industries

[0005] According to the above, because the electrolytic aluminum enterprises generally adopt the outdated processing technology of alumina crusts, the processing efficiency of the above method is low, the equipment failure rate is high, the degree of automation is low, the workload of equipment maintenance and repair is large, and the labor intensity of workers is high. Moreover, factors affecting large-scale industrial production such as the destruction of the environment of the electrolysis workshop; the output of alumina crusts is much higher than the recovery volume, forming a large backlog, resulting in transportation and storage costs, crushing and processing costs of alumina crusts, and The maintenance cost of the equipment used is extremely high, so there is an urgent need for a crushing process of alumina crust block and its production line suitable for large-scale industrial production

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