Product overview
Type II anhydrous phosphogypsum belongs to anhydrite binder,
originally defined as a new material composed of natural or
artificial anhydrite calcined at high temperature (> 600℃) and
grinding together with hardening activator. Industrial by-product
type II anhydrous gypsum definition: a new high-strength gypsum
material composed of calcined industrial by-product gypsum with the
required quality at high temperature (> 600℃) and grinding
together with activator and composite material.
Product purpose: To get harmless treatment, with high strength,
water resistance, light weight, high softening coefficient, strong
operational performance of new building materials, for a large
number of industrial by-product gypsum piled up in China to find a
new process, new method of energy saving, environmental protection,
large-scale production.
Production line features:
1, original waste heat utilization technology system, saving energy
more than 20%; Use remote control grab feed; Reduce the pollution
and unsafe factors brought by the forklift, saving 60% of the cost;
2, the use of PLC, DCS automatic control technology, DCS
application of Internet, optical fiber transmission, material level
temperature wireless transmission and other new technology
applications, truly achieve the purpose of unattended automatic
control;
3, the production line application of feeding system and
self-cleaning raw material treatment system, high-temperature
calcination waste heat utilization, exciter precise dosing, return
material quality control system, cooling homogenization system,
multi-heat source energy-saving fine control, heat source
energy-saving reuse, warehouse homogenization and anti-caking
technology application;
4, to solve the production of low temperature anti-corrosion
method: ND steel, special corrosion resistant coating, non-metallic
polytetrafluoroethylene, glass fiber reinforced plastic material
application. Application of high temperature and corrosion
resistant new materials special materials intelligent manufacturing
equipment;
5, the whole production system negative pressure operation, new
environmental protection clean ground system, full range of
cleaning dust removal technology; The production line system is
equipped with color positioning and ground positioning technology.
Technical indicators:
| Production line size (wd/a) | Annual production (t/a) | Energy consumption | Power consumption |
| Standard coal (kg/t) | Natural gas (m³/t) | Fuel (kg/t) | Biomass (kg/t) | kW.h/t |
| GWⅡ-10 | 100000 | 100~115 | 80~90 | 70~80 | 150~180 | 40~55 |
| GWⅡ-15 | 150000 |
| GWⅡ-20 | 200000 |
| GWⅡ-25 | 250000 |
| GWⅡ-30 | 300000 |
| GWⅡ-40 | 400000 |
| GWⅡ-50 | 500000 |
| GWⅡ-60 | 600000 |
| GWⅡ-80 | 800000 |
| GWⅡ-100 | 1000000 |
| Dihydrate gypsum quality>85,Early water<15%,Calorific value of
coal:>7000kcal/kg Calorific value of natural gas:>8600kcal/m³
Calorific value of fuel:>10000kcal/kg Calorific value of
biomass:>4500kcal/kg |
| Quality index |
| Flexural strength | MPa | 5.5~7.5 |
| Compressive strength | MPa | 25~35 |
| Initial setting time | Min | 8~20 |
| Semiaqueous term | % | <3 |
| Anhydrous term | % | >97 |
| pH value | | 6.5~8 |
Production line advantage
Shengshi gypsum building materials production line construction to
the annual total of 30%-50% growth. From 2018 to 2021, a total of
7.75 million tons of gypsum building materials production line will
be built in four years, and the total amount of construction will
be more than 3.2 million tons in 2022. Production line process
technology is constantly upgraded and optimized, using
energy-saving equipment, anti-corrosion new materials, intelligent
manufacturing full system equipment ultimate quality, low
temperature anti-corrosion, high temperature anti-oxidation. It can
reach the steam heat source single line industrial by-product
gypsum 400,000 tons production line, multi-heat source single line
industrial by-product gypsum 500,000 tons new process, reserve a
generation of perfect production line technology, technical system,
design a total of 3 million tons of phosphogypsum building
materials production line, and create a full series of industrial
by-product gypsum equipment intelligent manufacturing.
