Large, stationary, modular aggregate processing plant and method of manufacturing and installing same

A method of manufacturing and assembling a large stationary, aggregate processing screening tower comprising five layers of welded modules, said method comprising,

• fabricating said welded modules and preassembling them with aggregate processing equipment internal within the module,
• transporting said preassembled modules to a field site where they are stacked up on one another and secured together to form said five layers of modules,
• said layers of modules adapted to receive aggregate product at the top module and said product is processed by screening, blending, and sizing as it moves downwardly through said modules and their processing equipment for final collection of said product at various levels.

A large stationary, aggregate processing screening tower comprising,

• weldment modules preassembled with aggregate processing equipment internal within the modules,
• said preassembled modules are stacked up on one another and secured together,
• said stacked-up modules adapted to receive aggregate product at the top module and said product is processed by screening and sizing as it moves downwardly by gravity through said modules and their processing equipment for final clarification and collection of said product.

A large stationary, aggregate processing screening tower comprising five layers of welded modules having aggregate processing equipment therein, said layers of modules secured together and adapted to receive aggregate product at said top module and adapted to permit said product to be processed by screening, sizing and classifying said aggregate as it moves by gravity downwardly through said layers of modules and their processing equipment for final collection of said product.

In a large, stationary aggregate processing screening tower, having five layers of modules, a double screen vibrator mounted in and extending through two of said layers, said double screen vibrator having two screens positioned one above the other and mounted at a downwardly inclined angle and having a lower discharge end having outlet conduits for discharging screened product separately from each of said screens,

• a hot air heat conduit in communication with said vibrator adjacent the discharge end of the lower of said screens and for directing hot air into said vibrator where it rises within said vibrator to dry the product such as sand therein,
• and a heater in communication with said heat conduit for supplying hot air to said conduit and over said sand.

A method of manufacturing a large stationary, aggregate processing plant and comprising,

• fabricating weldment modules and preassembling them with aggregate processing equipment internal within the weldment modules,
• transporting said preassembled weldment modules to a field work site where the plant is to be erected on a foundation, aligning said modules in working relationship to one another,
• said modules adapted to receive aggregate at the top uppermost module and permit said aggregate to be processed by feeder screens and sizing into aggregate product as it moves by gravity through said modules and their processing equipment for final collection of said product.

A large stationary, aggregate processing plant comprising,

• weldment modules preassembled with aggregate processing equipment internal within the modules,
• said modules are arranged in working relationship to one another,
• said arranged modules adapted to receive aggregate product at the top module processing by screening and sizing as it moves downwardly by gravity through said modules and their processing equipment.

A double screen vibrator having two stationary vertical side walls having upper and lower screens positioned one above the other and mounted between said side walls and positioned at a downwardly inclined angle, said vibrator having a lower discharge end having outlet conduits for discharging screened product from each of said screens, high frequency electric vibrators connected with said screens for vibrating said screens at a frequency of 3000 to 5000 rpm,

• a hot air heat conduit in communication with said vibrator adjacent the discharge end of the lower of said screens and for directing hot air into said vibrator where it rises within said vibrator to dry the product such as sand therein,
• and a heater in communication with said heat conduit for supplying hot air to said conduit and over said sand.

A double screen vibrator having two stationary vertical side walls with upper and lower screens positioned one above the other and mounted between said side walls and positioned at a downwardly inclined angle, said vibrator having a lower discharge end having outlet conduits for discharging screened product from each of said screens, high frequency electric vibrators connected with said screens for vibrating said screens at a frequency of 3000 to 5000 rpm,

• a hot air heat conduit in communication with said vibrator adjacent the discharge end of the lower of said screens and for directing hot air into said vibrator where the air rises within said vibrator to dry the product such as sand therein,
• and a heater in communication with said heat conduit for supplying hot air to said conduit and over said sand to reduce the moisture content of the fine sand to 2% to 3$ and remove the fine 200-mesh particles of sand to achieve production of concrete sand in a dry application.

A large, stationary aggregate processing screening tower, having five layers of modules, a double screen vibrator mounted in and extending through two of said layers, said double screen vibrator having two screens positioned one above the other and mounted at a downwardly inclined angle and having a lower discharge end having outlet conduits for discharging screened product separately from each of said screens,

• high frequency electric vibrators connected with said screens for vibrating said screens at a frequency of 3000 to 5000 rpm,
• a hot air heat conduit in communication with said vibrator adjacent the discharge end of the lower of said screens and for directing hot air into said vibrator where the air rises within said vibrator to dry the product such as sand therein,
• and a heater in communication with said heat conduit for supplying hot air to said conduit and over said sand to reduce the moisture content of the fine sand to 2% to 3% and remove the fine 200-mesh particles of sand to achieve production of concrete sand in a dry application.