Gate to Gate
Identity ID
2900012d-4eb7-49b4-9369-8f98d2e909c3
Process class
Associated ID
3eb0620c-c1b6-4f15-a981-29028adc045b
Included activities starts
Included activities ends
Description
This dataset describes the process of screening 1 kg of crushed refractory raw material during refractory product manufacturing, resulting in 0.980 kg of sieved refractory raw material. This process should be used in conjunction with the production of 1 kg of refractory raw material. The dataset is compiled from data of sieving processes involved in various refractory product manufacturing, including shaped refractories, unshaped refractories, and refractory contracting production. Infrastructure such as equipment manufacturing and factory construction is not included within the system boundary of this dataset.
Activity Description
The dataset includes direct electricity consumption and particulate matter emissions from the screening process after crushing.
Process Description
This dataset provides the service of 'screening process, refractory materials'. Screening is a method of separating particle groups according to particle size, specific gravity, electrical charge, and magnetic properties. This process refers to the separation of particles by size, i.e., using a perforated screen surface to divide crushed mixed materials of different particle sizes into various size fractions. Based on the crushing process of refractory raw materials, assumptions are made regarding the composition of the raw materials for this process: it is assumed that 1 kg of crushed refractory raw material contains 0.3 g of bauxite, 0.5 g of magnesia sand, and 0.2 g of magnesia-calcia sand.
Time period
2020
2026
Geography
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
Screening is the process of separating particles using a sieve. The sieves used in this process can be categorized into vibrating screens, centrifugal screens, pressure screens, etc., among which vibrating screens are the most widely used. A vibrating screen consists of a screening surface and a vibrator. When material enters the sieve from the feed inlet, particles of different sizes are separated through the screening surface: smaller particles pass through the mesh openings, while larger particles move along the surface until they are discharged from the outlet.