BRICK CRUSHER

A brick is a block of ceramic material used in masonry construction, usually laid using various kinds of mortar.
Bricks may be made from clay, shale, soft slate, calcium silicate, concrete, or shaped from quarried stone.
Clay is the most common material, with modern clay bricks formed in one of three processes - soft mud, dry press, or extruded.
Normally, brick contains the following ingredients:
Silica (sand) - 50% to 60% by weight
Alumina (clay) - 20% to 30% by weight
Lime - 2 to 5% by weight
Iron oxide - 5 to 6% (not greater than 7%) by weight
Magnesia - less than 1% by weight
Mud bricks
The soft mud method is the most common, as it is the most economical. It starts with the raw clay, preferably in a mix with 25-30% sand to reduce shrinkage. The clay is first ground and mixed with water to the desired consistency. The clay is then pressed into steel moulds with a hydraulic press. The shaped clay is then fired ("burned") at 900-1000 °C to achieve strength.
Rail kilns
Xhosa brickmaker at kiln near Ngcobo in the former Transkei in 2007.
In modern brickworks, this is usually done in a continuously fired tunnel kiln, in which the bricks move slowly through the kiln on conveyors, rails, or kiln cars to achieve consistency for all bricks. The bricks often have added lime, ash, and organic matter to speed the burning.
Bull's Trench Kilns
In India, brick making is typically a manual process. The most common type of brick kiln in use there are Bull's Trench Kiln (BTK), based on a design developed by British engineer W. Bull in the late nineteenth century.
An oval or circular trench, 6–9 meters wide, 2-2.5 meters deep, and 100–150 meters in circumference, is dug. A tall exhaust chimney is constructed in the centre. Half or more of the trench is filled with "green" (unfired) bricks which are stacked in an open lattice pattern to allow airflow. The lattice is capped with a roofing layer of finished brick.
In operation, new green bricks, along with roofing bricks, are stacked at one end of the brick pile; cooled finished bricks are removed from the other end for transport. In the middle the brick workers create a firing zone by dropping fuel (coal, [wood], oil, debris, etc.) through access holes in the roof above the trench.
West face of Roskilde Cathedral in Roskilde, Denmark.
The advantage of the BTK design is a much greater energy efficiency compared with clamp or scove kilns. Sheet metal or boards are used to route the airflow through the brick lattice so that fresh air flows first through the recently burned bricks, heating the air, then through the active burning zone. The air continues through the green brick zone (pre-heating and drying them), and finally out the chimney where the rising gases create suction which pulls air through the system. The reuse of heated air yields savings in fuel cost.
As with the rail process above, the BTK process is continuous. A half dozen laborers working around the clock can fire approximately 15,000-25,000 bricks a day. Unlike the rail process, in the BTK process the bricks do not move. Instead, the locations at which the bricks are loaded, fired, and unloaded gradually rotate through the trench.
Dry pressed bricks
The dry press method is similar to mud brick but starts with a much thicker clay mix, so it forms more accurate, sharper-edged bricks. The greater force in pressing and the longer burn make this method more expensive.
Extruded bricks
With extruded bricks the clay is mixed with 10-15% water (stiff extrusion) or 20-25% water (soft extrusion). This is forced through a die to create a long cable of material of the proper width and depth. This is then cut into bricks of the desired length by a wall of wires. Most structural bricks are made by this method, as hard dense bricks result, and holes or other perforations can be produced by the die. The introduction of holes reduces the needed volume of clay through the whole process, with the consequent reduction in cost. The bricks are lighter and easier to handle, and have thermal properties different from solid bricks. The cut bricks are hardened by drying for between 20 and 40 hours at 50-150 °C before being fired. The heat for drying is often waste heat from the kiln. European style extruded bricks / blocks are use in single wall construction with an applied finish inside and outside. They have many voids, the voids being a greater fraction than the solid, with thin walls of fired clay and come in 15-25-30-42-50 cm widths. Some models have very high thermal performance suitable for Passivhaus type buildings.
Calcium silicate bricks
The raw materials for calcium silicate bricks include lime mixed with quartz, crushed flint or crushed siliceous rock together with mineral colourants. The materials are mixed and left until the lime is completely hydrated, the mixture is then pressed into moulds and cured in an autoclave for two or three hours to speed the chemical hardening. The finished bricks are very accurate and uniform, although the sharp arrises need careful handling to avoid damage to brick (and brick-layer). The bricks can be made in a variety of colours, white is common but pastel shades can be achieved.
It is very common in Sweden, especially in houses built or renovated in the '70s. Here it is referred to as "Mexitegel" (en: Mexi[can] Bricks).
In India these are known as Fly ash bricks, manufactured using the Falg process.
Crushing Plant & Portable Crushing Plants
The crushing plants inlcude jaw crushing, cone crushing, impact crushing etc. Jaw crusher crush raw materials as primary crusher. Cone and impact crusher work as secondary crusher. Grinding plant include ball mill, raymond mill etc. The mills grind materials into smaller fine powder for deep usage.
Zenith produce not only crushing plants for this kind of mineral but also plants for kinds of minerals and ores. The productions include aluminum ore crushing line, barite grinding plant, coal crushing plant, gold ore crushing plant, magnetite ore screening plant, track ballast crushing line, iron ore crushing plant, quarry plant, nickel crushing and grinding plant, antimony ore crushing plant, construction aggregate plant, cement grinding plant, sand making production plant, copper ore crusher and mills, coal preparation plant, mining and crushing plant, construction waste crushing and treatment equipment, washing sand plant, track mounted aggregate plant, granite crushing plant, iron ore crushing plant, etc.
And Zenith mining machines are exported to more than 100 countries and regions. Vietnam, Nigeria, Kenya, Angola, Congo, Sudan, Yemen, Saudi Arabia, , Oman, Kazakhstan, Uzbekistan, Algeria, Chile, Peru, Ecuador, Senegal, Indonesia, Zimbabwe, Libya, Mozambique, Colorado, Iran, Nepal, Russia, Puerto Rico, Iraq, Botswana, Venezuela, Us-Fl, Afghanistan, Colombia, Maroc, Algeria, Zambia, Cuba, Italy, Paraguay, Lebanon, Vanuatu, Mongolia, Georgia, Canada, Tunisia, Uganda, Namibia, Belgium, Lao Pdr, Australia, Syria, Bangkok,Usa, Poland, Mexico etc.