Stone Shape is not Good,How To Solve The Problem of Many Needles?

The test results show that: With the increase of the content of needle and flake particles in the aggregate, the crushing value of the aggregate increases linearly, and the performance of the concrete decreases, and the degree of influence of the flake particles on the performance of the concrete is higher than that of the needle. Particles; Needle, flake particles content should not exceed 15%.
Aggregate equipment
Therefore, it is of great significance to solve the problem that the shape of the stone is not good and the content of flakes is reduced. A stone production line or sand production line, equipment investment ranging from hundreds of thousands to tens of millions. In addition, if it is its own mine, it is necessary to obtain a mine exploitation certificate. If it is someone else's mine, it will have to pay more for the raw materials, plus management costs and promotion costs. These are all necessary expenses. As a result, it is impossible to produce qualified sand and stone material, or if the content of flakes is too high to be sold, it is really an empty basket. This is unwilling to see users and manufacturers.
As a mining crusher equipment manufacturer, the pain of users is our pain. When users spend money on equipment, we naturally have to fulfill our duties. The shape of the stone is not good, and a large amount of needle-like pieces indicates a problem with the configuration of the equipment. The equipment for crushing materials using the extrusion principle has poor grain shape. The equipment with the principle of impact crushing has good stone shape. This is recognized by the industry. For some soft rock crushing, we do not have to worry about it. As long as a combination of jaw crusher and impact crusher (shaping) is used, the stone shape conforms to the requirements of the mixing station.

Therefore, the problem of poor shape of stone grains mostly appears in the crushing of hard rock. The crushing of hard rock is a test for wearing parts, and the use of counter-attack breakage loss will be great. In addition, the profit of cone crushing is definitely higher than that of counter crushing. Therefore, some The crusher manufacturers are just pushing the boat, recommending users to use the conical breaker to process the stone, but this does not completely solve the problem. Although conical crushing saves the cost of wearing parts and ensures sufficient production time, it also increases the amount of flakes in the stone and eventually results in poor stone shape. Therefore, be cautious when choosing cones to break, or choose HPT multi-cylindrical hydraulic cones to break high speed, with an impact cone crushing, or we must join shaping machine.
Tarzan PF impact crusher, PCL vertical shaft breakage, and JYS/T new high-efficiency sand making machine are all optional shaping machines. They are all based on the impact crushing principle and are suitable for the shaping of gravel.
Impact Crusher Shaping Machine
Counterattack generally has 2-3 crushing chambers. After the material enters the counterattack, it is crushed after impact by the hammer. However, the pulverized material will hit the counterattack lining plate fixed on the counterattack frame, and will be crushed again, and then meet the specifications.The material enters the second crushing chamber and breaks down. After 2-3 comminution of the crushing chamber, the material was impacted and fractured on multiple surfaces, and thus a polyhedron was formed, and the shape of the particles was also relatively regular. Therefore, the impact crusher is an excellent stone crusher and is the best shaping equipment for the stone production line.
Sand making machine Shaping equipment
The impact crusher does a good job of shaping the stone, but it is not the only shaping machine. What is another shaping machine? It is the equipment we use for making sand every day - the impact type sand making machine. There are many types of impact sand making machines, including PCL series, VSI series, 5X series, and JYS/T series. The crushing principles are similar, and the basic principle is to use the crushing principle of stone playing stone and stone playing stone. Impact type sand making machine is also called fine crushing sand making machine, which can be used for shaping of coarse aggregate. Especially in the 5-15mm material, its fine crushing ability and shaping ability can both play. When using the impact type sand making machine for shaping, if we need more stones for the concrete between 10-30mm, it is recommended that the material entering the sand shaping machine be 45-60mm, if it is the production of 5-15mm asphalt mixture Material, it is recommended that the feed can be reduced to 40mm or less, of course, we can also use the screening classification, and then back to the material crush shaping.
The investment in the multi-stage crushing and shaping program must be higher than the normal two-stage crushing method, but I think that if it is to supply large projects, the long-term contract is more important than the expenditure of equipment at that point. If the material is not good enough, if the other party terminates the contract, it will lose more. Therefore, for users, we must do the most professional, one-step, in order to obtain sustained high-value output, in a shorter period of time to recover the investment and gain profits.