Cement Production Line

Abstract

The invention discloses a production line for preparing cement. The production line comprises a burdening belt conveyor, a burdening lifter, an extruder, a V-shaped powder concentrator, a dual-cyclone cylinder with an inner barrel and an outer barrel, a cement mill, a mill lifter, an upper reservoir lifter and a cement bunker, wherein an extrusion lifter is arranged between an extruder discharge hole and a feeding hole of the V-shaped powder concentrator; a fine material outlet of the V-shaped powder concentrator is communicated with an intake pipe of the dual-cyclone cylinder; a coarse powder outlet of the V-shaped powder concentrator is communicated with a feeding hole of an extruder bin; the discharge hole at the bottom of the dual-cyclone cylinder is communicated with the feeding hole of the cement mill; the top of the dual-cyclone cylinder is connected with a main dust collector; the lower bottom edge of the inner barrel extends into a conical barrel at the lower part of the dual-cyclone cylinder; and the discharge hole of the main dust collector is communicated with the feeding hole of the cement mill. By adopting the production line, abrasion on internal components of the V-shaped powder concentrator caused by large-diameter particles can be reduced, cement particles are prevented from being directly sucked into an air hose under the action of a high wind speed, so as to block the air hose, the production efficiency of cement is improved, and the service life of the equipment is prolonged.

Description

technical field [0001] The invention relates to a cement production line Background technique [0002] In the existing cement production process, the raw materials transferred from the cement batching system directly enter the V-type separator through the batching hoist for grading and screening of material thickness. The materials screened by the V-type separator are divided into two parts, Coarse materials are sent back to the extruder for extrusion, then are lifted by the extrusion hoist and then enter the V-shaped powder classifier for screening. After the finer materials are separated by the cyclone, they are ground into cement products by the grinder and sent to Put into cement storage. At present, the shortcomings of this commonly used cement production line are: first, due to the raw materials delivered from the batching system, the particle sizes are different, and the average diameter of the large particles reaches 45mm, and the maximum can reach 70mm. Directly e...

AI Technical Summary

Problems solved by technology

At present, the shortcomings of this commonly used cement production line are: first, due to the raw materials delivered from the batching system, the particle sizes are different, and the average diameter of the large particles reaches 45mm, and the maximum can reach 70mm. Directly entering the V-type powder separator for screening, it is easy to cause serious wear and tear on the breaking plate, baffle plate and other parts inside the V-type powder separator, thereby shortening the service life of the V-type powder separator and improving the screening effect. It is also poor; secondly, in the cyclone used in the existing production line, the lower bottom of the inner cylinder is located at about half the height of the outer cylinder, resulting in a small distance between the lower bottom of the inner cylinder and the lower bottom of the air inlet, resulting in some When the wind containing cement particles enters the gap between the inner cylinder and the outer cylinder from the air inlet, it is sucked into the high-pressure air pipe connected to the inner cylinder under the action of high-pressure wind before it can rotate downwards, and the cement collection process cannot be completed. Cement particles are sucked into the high-pressure air duct at high speed, which can easily cause serious wear on the inner wall of the high-pressure air duct and the high-pressure fan, shorten the service life of the high-pressure fan, and affect the normal operation of the entire system; The impact force at the joint of the outer cylinder is relatively large, and the impeller part of the high-pressure fan matched with the V-type powder separator is also easily impacted by the dust-laden airflow, especially the windward side of the impeller, the welding part of the fixing plate and the blade, etc., including The cement particles in the dust flow have a greater impact on its wear, which will lead to a rapid decrease in the working efficiency of the fan and affect the cement production efficiency

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