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Stationary crushing and screening plants

Stationary crushing and screening plants

The equipment used in the stationary crushing and screening plants are stationary crushers and other stationary machines, which is suitable for quarries with relatively fixed sites and large areas. The stationary crushing and screening plant requires piling, fixing, installing and connecting the required equipment, which is mainly composed of feeders, crushers, screens, sand makers, storage hoppers and belt conveyors, and dust collectors. It is mainly used for material processing in metallurgy, chemical industry, building materials, hydropower, construction waste treatment, etc., especially for highways, railways, hydropower projects, municipal construction waste, etc. It can adopt a variety of configurations according to the user's requirements for material type, production scale and discharge size.

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1. It can be flexibly combined according to market needs and has strong adaptability. Users can choose the configuration according to their own needs. It can be composed of "crushing - screening" or "screening - crushing" according to different process requirements. The crushing section and the screening section can also be used separately. It can be combined into a two-stage crushing and screening system of primary crushing and secondary crushing according to actual needs. It can also be combined into a three-stage crushing and screening system of primary crushing, secondary crushing and tertiary crushing. Each section can also be operated independently.

2. It has strong stability, low loss, long service life and low failure rate. Once the plant is put into production, the failure rate is low, and only the loss and daily maintenance of the equipment need to be considered. Compared with mobile crushing and screening plants, stationary crushing and screening plants are simple and can bring considerable economic benefits to customers. It is very suitable for companies with relatively concentrated stones and relatively stable supply and sales.

FAQ

Q: What are the precautions for stone crushing and screening plant?

A: 1) Before the entire plant is run, all equipment should be consulted and inspected to ensure the normal operation of each equipment. During the preliminary foundation construction, the equipment foundation should be solid and reliable.

2) Each machine should be started in the normal startup sequence. Only after the previous machine is running normally and smoothly can the next machine be started, and the operating status of the machine should always be paid attention to. After the production is completed, it is necessary to confirm that there are no residues in the machines, and the stopping sequence of the machines is reversed.

3) The feed size of the machine should be strictly required. Never feed materials that are larger than the feed size of the crusher or that cannot be broken into the crusher, otherwise it will cause severe wear of the crusher or unqualified aggregate quality.

4) During the production process, if there is abnormal noise or abnormal equipment operation, the plant should be stopped in time, the equipment should be inspected, and the problem should be found and solved before continuing the production process. When foreign objects in the crusher cannot be crushed, feeding should be stopped to avoid blockage. 

5) After production, the equipment should be stored and lubricated, and the equipment should be roughly inspected between productions.

Q: What are the main equipment components of a stationary crushing and screening plant?

A: 1) Feeders. The vibrating feeder can feed materials into the crusher evenly, quantitatively and continuously. It has the characteristics of stable vibration, uniform feeding and low cost.

2) Crushers. Jaw crusher is mainly used for primary crushing of materials and has good versatility. It has the characteristics of high efficiency, large capacity and simple maintenance. Cone crushers and impact crushers are commonly used crushing equipment in gravel plants for medium and fine crushing. Among them, the cone crusher is more suitable for crushing rocks with medium hardness and above, and the impact crusher is more suitable for crushing soft materials. Users can also equip hammer crushers, roller crushers, compound crushers, etc. according to the materials to be crushed and their own needs.

3) Screens. The screens in the gravel crushing plant can be used for both pre-screening and final screening. The most commonly used screen is the inclined vibrating screen. The inclined vibrating screen has a variety of specifications and has the advantages of high efficiency, low pollution and durability.

4) Sand makers. The sand maker is used to make artificial sand. It relies on the principles of "stone against stone" and "stone against iron" to have a good shaping effect. It has simple operation, high capacity, cubic particle and uniform fineness. The vertical shaft impact (VSI) crusher is the most commonly used sand maker on the market.

5) Storage hoppers and belt conveyors. Belt conveyors have the characteristics of continuous conveying, long conveying distance, and large conveying capacity.

6) Dust collectors. Dust removal equipment mainly includes fans, motors, dust treatment and recovery systems, etc.

7) Others. The crushing and screening plant can also be equipped with sand washers, dryers, electronic control systems and other equipment.