Jaw Crusher Research Articles

New mills for breaking up refractory raw materials

At the Semiluk Refractories Plant new types of two-plate and single-plate mills were constructed from drawings supplied by the Ukrainian Scientific-Research Institute of Refractories. The mills were tested and are used for breaking up the clay before it is fed into disintegrators and for grinding waste material from the production of lightweight corundum bricks after it is first crushed in a jaw crusher. A two-plate mill is in use also at the Zaporozhe Refractories Plant for breaking up lumps of sintered silicon carbide powder.

Quarrying in Israel: Administrative roulette

The development of a series of novel sacrificial wear sensors is discussed. The sensors are designed for use within the quarrying industry. Aggregate is produced by crushing the mined rock using jaw and cone crushers. Cone crushers use the principle of grinding rock between an eccentrically rotating mantle and a stationary concave liner. The rock is fed into the top of the crusher and the output diameter is set by the discharge setting, or nip angle at the lower half of the crusher. During crushing, the manganese liners are susceptible to a high degree of wear. A system to monitor the condition and performance of the cone crushers is described, using specifically designed sacrificial sensors which are embedded into the liners.

シングル・トッグル・ジョウ・クラッシャの破砕荷重に関する2, 3の考察

シングル・トッグル・ジョウ・クラッシャの破砕荷重に関する2, 3の考察

New cone and jaw crusher designs

New cone and jaw crusher designs

Operation of the Giant Jaw Crusher and Ball Mill

Operation of the Giant Jaw Crusher and Ball Mill

A Jaw Crusher for Plutonium Ceramics

Statistical analysis of test results obtained by crushing SiC and ZrO2 yielded the optimum design characteristics for a miniature jaw crusher. The device was needed to reduce subcritical amounts of...

NI-HARD TYPE 4

Abstract Ni-Hard Type 4 is a wear-resistant martensitic white iron with improved resistance to fracture under repeated impact. It is recommended for jaw crushers, hammer mills, pulverizers and similar heavy duty wear resistant components. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: CI-34. Producer or source: Alloy iron foundries.

Mechanizing the loading of grog in a jaw crusher

Mechanizing the loading of grog in a jaw crusher

The Particle Size Analysis of Crushed Products

An examination is made of two particle size analyses which are typical of two categories of crushed products. One example represents material reduced in a hammer mill; subjected to indiscriminate reduction, it contains a preponderance of smaller sizes, and this is characteristic also of ball mill products and the small particles in the products of jaw, gyratory, and roll crushers. The second example illustrates the influence of the sizing action which occurs in the latter machines and results in a closer grading of the coarse particle fraction. These characteristic features are illustrated by graphs, and a mathematical basis is given for Gaudin's law of particle size distribution.

NATIONAL REVIEW OF THE SAGGER SITUATION1

A questionnaire sent to a number of clay mfgs. elicited the information: (1) better sagger cost system needed; carborundum and Na SiO are frequent constituents of the sagger body; (3) jaw crusher better than pan grog; (4) sagger containing 30 per cent carborundum and lasting 20 or more fires is economical.