Equipment Production Capacity Research Articles

Optimization and Upgrading of Key Technologies for Lead Electrolysis Equipment Sets

In response to the current key issues in the production of existing lead electrolysis equipment, such as poor verticality of lead cathode, inferior welding quality, short service life of conductive rod and high contact resistance, we have developed several technologies based on the principles of elastoplastic mechanics, bending and shaping, resistance spot welding and neural network control.These technologies include the stiffness-enhanced plate surface embossing, the dynamic multi-eigenvalue fusion of BP neural network resistance welding control, and the efficient rod-plate separation for cathode lead plates and conductive rod. They have been applied in a newly constructed 480kt/a project at a large domestic lead smelting enterprise. The results have demonstrated significant improvements in overall equipment production capacity, reducing the production time from 15s/plate to 11.5s/plate, decreasing the short-circuit rate caused by cathode verticality to 0.43%, and extending the service life of conductive rod by 12.8%.

Design and Development of Energy-saving Scheduling System for Forging Production

This paper is aimed at the development of energy-saving scheduling optimization system for forging production. The system uses Java language programming and make use of MVC (Model View Controller) mode to build the structure and utilize B/S (Browser/Server) network structure model for development of web client. The scheduling system combined with the equipment production capacity and forging processing parameters to optimize the scheduling task is aimed to achieve the optimal configuration between forgings and equipment to reduce or even eliminate the heating, forging waiting to help enterprises to achieve energy conservation.

RE-Based Weighted Distributed Equipment Layout

Recent industry research shows that the existing layout configuration can not satisfy complex manufacturing of many production types. New layout strategy, especially distributed layout received more attention, has the potential to cope with demand interference. This paper attempts to use the method of resource element (RE) to consider equipment production capacity to design weighted distributed layout. Give a more explicit description of unique and common processing ability of devices and parts processing requirements. Considering the weights between REs and make more relevant REs adjacent, using genetic algorithm to construct RE-based weighted distributed layout, minimizing the total weighted minimum distance between REs to minimize material transportation costs.

Mixed integer programming model for short term planning in open-pit mines

In this paper, a mixed integer programming model for solving the short term planning problem in surface mining is presented. This model will establish the sequence of mining for a period ranging from days to several months. This involves determining which blocks of the geological model will be extracted and in what order, indicating the movement of the shovels and meeting the production capacity of equipment. To reduce the computation time, four sets of strategies are proposed.

Oxygen-Enriched Combustion Technology Application and Economical Forecast in Cement Industry Kiln

Using combustion theory to research on the technical theoretical features of oxygen-enriched combustion technology application to the cement industry kiln. On the basis of this, engineering projects of that, a certain enterprise 3000 t/d cement clinker production line applied oxygen-enriched combustion technology, and its economic evaluation were calculated. The results showed that: applying Oxygen-enriched combustion technology to the existing cement clinker calcined equipments, the coal powder consumption, the volume of flue gas and CO2 concentration in the flue gas of unit cement clinker occurred regular changes, When the O2 concentration increased from 21% to 30%, the coal powder consumption decreased by 17.78%, the flue gas volume was reduced by 12.73% and the CO2 concentration in the flue gas increased to 76.57%. If the enterprise used the oxygen-enriched atmosphere of O2 concentration for 30% to form the coal combustion, it can save coal about 71.87 t/d, equipment production capacity increase by 41.75% and capture CO2 products about 2662 t. Every year, this resulted in the profit increasing 103 million yuan.

An improved production planning method for process industries

An effective production planning method plays a key role in the production management system for the process manufacturing industries. It is particularly important to develop ways to solve the problems under demand uncertainty, planning inadequacy and capability unbalance. In this article, we present a process industries oriented production planning optimisation method that focuses on minimising inventory costs, and optimising production load rate and balance load rate. By analysing the demand forecasts model and minimum inventory costs control model, we propose how to achieve total production demand amounts in correlation with production orders. We also discuss the Weibull distribution-obeyed equipment repair model to maximise the equipment utilisation rate. The equipment repair time is also considered when specifying the production lead time. The production planning system optimisation objectives function is given, in the condition of the equipment production capacity model and the smallest economic batch requirement. To validate the proposed methods, real production and sales data are sampled from a pharmaceutical plant. The case study shows that the improved production planning models are more targeted and effective for Chinese process industries.