Titanium sponge pulverizing method and apparatus

Abstract

The invention discloses a crushing method of titanium sponge and the crusher. The crushing method is as follow: a shearing apparatus is used to shear the titanium sponge lump into blocks; then the blocks are sheared and cut into smaller blocks in geometric dimension; the blocks are gradually sheared and cut in this way, until the geometric dimension of the blocks meet the requirement. The crusher comprises a titanium sponge holder slide way and a push device, a lower blade arranged at the head of the holder slide way, and an upper shear arranged above the holder slide way, wherein, the upper blade is provided with a drive and transmission device used for driving the upper blade to do reciprocating movement; the edges of the upper blade and the lower blade are opposite and corresponding to each other; a limiting device of titanium sponge is arranged in front of the head of the holder slide way. The titanium sponge is crushed by means of shearing, so the blocks are free from extrusion force, are not compacted, and increase slightly in density. Due to the blocks free from repeated extrusion, the blocks temperature rise is slow, the temperature is low, and the blocks are oxidization resistant. The titanium sponge is sheared with fixed length, the geometric dimension of the blocks are uniform, so the service performance of product is good and the yield is high but no waste product. Only using the shearing machine, the crushing method has the advantages of short technological process, high work efficiency and low cost.

Description

technical field [0001] The invention relates to a method and device for crushing titanium sponge. Background technique [0002] The sea-surface titanium produced by the kroll method has high hardness and toughness at the core of the titanium lump, and the strength difference between the various blocks is very large. When it is compressed, it will produce a large plastic deformation, and its elongation can be greater than 55%, the physical characteristics are quite different from the ore, coal, coke, limestone, etc. crushed by ordinary crushers, and the crushing is very difficult. [0003] The existing known sponge titanium crushing process includes two steps: first, the titanium lump is cut into chunks suitable for processing by the crusher with a shearing device, and then the chunks are broken into pieces whose geometrical dimensions meet the requirements by the crusher. Among them, the crushing step includes several sub-steps, usually: coarse crushing→sieving→medium crush...

AI Technical Summary

Problems solved by technology

The common feature of these crushers is that the structure of the sponge titanium block is mainly destroyed by extrusion, making it into fragments, which brings the following problems: 1. The sponge titanium is compressed by the extrusion force, the volume is reduced, and the density is reduced. Increased, physical properties deteriorated

Therefore, the sponge titanium fragments processed by the above-mentioned crushers all have different degrees of density increase, and their performance is poor. After crushing, the density often exceeds the standard and becomes a waste product, which reduces the utilization rate of titanium lumps

2. Due to the multi-stage crushing, the sponge titanium block is repeatedly extruded, the temperature rises quickly, the temperature is high, the block is easily oxidized, and the chemical properties change, resulting in poor performance

3. The geometric size of the crushed scraps is different, which also affects its performance. The scraps that are too small cannot be used and become waste products.

4. Long process flow, low processing efficiency and high cost

5. The number of equipment used is large and the benefit is low

Images