Diabase is an ideal raw material for sandstone aggregate. It is widely distributed in Fujian, so it is also called Fujian bluestone. The main composition of diabase is composed of pyroxene and basic feldspar, and the minor mineral components are olivine, biotite, quartz, apatite, etc., which belong to shallow diagenetic rocks in diabase, with obvious crystalline and fine-medium grains. , Dark gray-gray black, often with greenish structure or sub-greenish structure.
Gabbro is similar in composition to gabbro, but it is formed relatively shallowly, not as deep as gabbro, so it has a smaller grain size, and does not eject the surface like basalt and is mainly glassy.
Diabase is a kind of material with high hardness and high silicon content, which is difficult to be broken or the cost of crushing is high in the actual crushing operation. Generally speaking, diabase is a hard and tough material, granite is a hard and brittle material, river pebble has a relatively low hardness, but has the highest silicon content. Therefore, the crushing process of these materials should be designed reasonably. When considering the investment cost of the crushing project, the production cost of the production line must be considered.
Gypsum green structure means that the average particle size of pyroxene is larger than the average length of plagioclase, presenting the phenomenon that one pyroxene is wrapped by many plagioclase; if the average particle diameter of pyroxene is smaller than or close to the average length of plagioclase, it is present The plagioclase is partially wrapped or intersected with the plagioclase, which is called a secondary green structure. There are different opinions on the causes of the greenish structure and the second greenish structure, and it is generally believed that it is formed by the sequence of mineral crystallization in shallow formation conditions. Containing a lot of interstitial quartz, or interstitial intersects composed of quartz and orthoclase, called diabase, or plagioclase; it contains zeolite, orthoclase, and nepheline Stone or neon, called alkaline diabase. Volatile pyroxene and perilla pyroxene can appear in quartz diabase, while olivine can appear in alkaline diabase.
Q: What is the difference between diabase and common basalt?
A: Diabases are shallow facies intrusive rocks, while basalts are volcanic rocks. One crystallizes below the surface and has a longer cooling time, and one cools on the surface or in the air without crystallization time. However, diabase is a fine-grained intrusive rock, and the hardness of igneous rocks is relatively high. Both aspects are suitable for high-grade pavement materials. However, both can be processed into high-quality building materials through the processing of Jianye JYS high-efficiency sand making machine .
- Recommended model: PE900 * 1200 Hubei equipment characteristics: simple structure, high cost performance, strong crushing ability.
- Recommended model: HST250 single-cylinder cone crusher Features: Simple and convenient operation and maintenance, uniform grain shape, overload protection device
- Recommended models: Multi-cylinder hydraulic cone crushing equipment Features: Wear-resistant parts are made of high-performance wear-resistant materials, durable and efficient, and good shape.
- Recommended models: Vibrating feeders Features: Uniform feeding and high strength
Because of its high hardness, the natural difficulty factor for crushing diabase is high, but it is not insurmountable. The crushing process is similar to hard rocks such as granite and basalt, and is mainly divided into three major modules:
Coarse crushing module, generally including caster-type vibrating feeder, jaw crusher or rotary crusher, pre-screening vibrating screen (optional), etc .;
Medium and fine crushing modules generally include a variety of cone crushers, mainly including medium crushing cones and cones for returning materials. Select the model, cavity type and number according to the mass production scale. The cone crusher needs to be equipped with a stable silo or feeder to ensure uniformity. Feeding and avoiding material breakage;
Screening and washing modules. Screening and washing modules generally include sieve grouping, sand washing machines, dewatering screens, or dewatering fine sand recovery all-in-one machines. Of course, you must choose dry but not many. Mainly you need to configure screening systems, powder selection systems, and dust removal systems And wet mixing system;
Storage system, storage system equipment is mainly the selection and construction of storage tanks, silos, storage yards, may use automatic stacking belt conveyors, hanging feeders (for unloading).
Of course, the four major modules are organically connected together, and various types of steel structures, belt conveyors, hanging feeders, etc. are required.
Question: What should I do if the diabase is broken and the hammer is severely worn back?
Answer: The impact crusher is suitable for the crushing of shaped stone. It has a larger feed ratio and is more suitable for the crushing of softer materials. Therefore, we recommend the use of cone crusher to crush the diabase with relatively strong hardness. The structure of the cone break is stable and the crushing strength is large.
Processing use: crushed stone processing
Target hourly output: 120 tons per hour
Recommended models: HPT300 multi-cylinder cone crusher, JYS9928 sand making machine
Processing use: crushed stone processing
Target hourly output: 800 tons
Recommended models: 900 * 1200 E crusher, JY1380 cone crusher (3 sets), 1238 sand making machine 2 sets