1、 Concept and classification of asphalt mixing plant: also known as asphalt concrete mixing plant or asphalt concrete mixing plant. Refers to a complete set of equipment used for mass production of asphalt concrete. According to the mixing method, it can be divided into forced intermittent production and continuous production; According to the transportation method, it can be divided into fixed, semi fixed, and mobile types.

The structure of asphalt mixing equipment mainly consists of: batching system, drying system, combustion system, hot material lifting, vibrating screen, hot material storage bin, weighing and mixing system, asphalt supply system, powder supply system, dust removal system, finished product silo and control system, etc.

The sub components are: grading machine, vibrating screen, belt feeder, powder conveyor, drying mixing drum, coal powder burner, dust collector, elevator, finished material silo, asphalt supply system, distribution room, and electrical control system.

Classification of asphalt mixing plants:

1. According to production capacity, it can be divided into: small, medium, and large.

(1) Small scale, i.e. productivity below 40t/h;

(2) Medium size, with a production rate of 40-400t/h;

(3) Large scale, with a production rate of over 400t/h.

2. According to the transportation method (migration method), it can be divided into mobile, semi fixed, and fixed types.

(1) Mobile, that is, the silo and mixing pot come with their own tires, which can be transferred with the construction site, suitable for county and township roads and low-grade road projects;

(2) Semi fixed type, which means that the equipment is installed on several trailers and assembled at the construction site, mostly used for highway construction;

(3) Fixed type, also known as asphalt concrete processing factory, refers to the fixed location of equipment operation, suitable for centralized engineering and urban road construction.

3. According to the process flow (mixing method), it can be divided into continuous drum type and intermittent forced type.

(1) Continuous drum type, which adopts a continuous and uninterrupted mixing method for production. The heating and drying of aggregates and the mixing of mixtures are carried out continuously in the same drum;

(2) Forced intermittent type, that is, the heating and drying of aggregates and the mixing of mixtures are carried out in a forced periodic manner.

2、 Burner classification: integrated and split type burners.

Zhengzhou Zhongwei Environmental Protection Equipment Co., Ltd. undertakes the design, installation, debugging, and automation control system engineering project of asphalt mixing plant burners. It designs and manufactures split type burners, integrates the combustion control system, and is responsible for installation and debugging services.

Split type burners are classified according to the selected fuels: natural gas burners, liquefied petroleum gas burners, blast furnace gas burners, coke oven gas burners, light hydrocarbon gas burners, gas generators, coal powder burners, diesel, heavy oil, methanol burners, etc. Agent for imported burners.

Zhongwei Environmental Protection Group Co., Ltd. (Zhengzhou Zhongwei Environmental Protection Equipment Co., Ltd. and Zhengzhou Deste Automation Equipment Co., Ltd.) has undertaken the "coal to gas" industrial furnace project, undertaking large-scale industrial furnaces, automation control systems, security, desulfurization and denitrification equipment, and in line equipment "general contracting" projects at home and abroad. It is a domestic "one-stop" environmental protection furnace overall solution provider and implementer.