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At present, the mechanical sample preparation equipment for coal pier, coal washery loading station and the coal transfer system in the thermal power plant are mostly adopting the sample preparation workshop built by the steel structure. The automatic sample preparation system is usually designed independently according to the topography position and space height, so the structure varies greatly. It is not conducive to the production of the workshop. The installation work is heavy and the construction time is long. In this article, we will mainly talk about how to design the largest container type of sample preparation system, so as to achieve the goal of integration, facilitate transportation and complete machine manufacturing in the workshop.

The Equipment Composition

The mechanical sample preparation equipment is mainly composed of the screw feeder, hammer crusher, belt division machine, belt conveyor and electrical control cabinet. All the equipment mentioned above will be placed in a container. In the container, the screw feeder is fixed closed to the roof and connected to the external inlet via the chute. It feeds the coal into the feed port of the crusher. After crushing, the coal discharged from the crusher will enter the feed inlet of the belt conveyor that arranged under it through the intermediate chute. The outlet port of the belt conveyor is outside the container and there will be a division machine installed in the middle of the belt conveyor. The final samples will be sent into the sample collection barrel set under the division machine.

The equipment electrical control cabinet is placed in an independent space at the left side of the container, which is separated by a seal partition plate to prevent dust from entering the electric control room, and there is a separate anti-theft door set to enter the electric control room. The enclosure structure around the container can be detached easily to facilitate the maintenance and overhaul of the mechanical sample preparation unit.

Structure Characteristic

• The screw feeder, intermediate chute, crusher, belt division machine, sample collecting barrel, electrical control cabinet, etc. are set in the non-standard container, making the automatic sample preparation equipment more compact and standard in structure and size, which is convenient for assembly in batch production workshop and convenient for automobile transportation.
• The separately set seal partition plate and the anti-theft door of the electrical control cabinet in the container can prevent the electrical components from dust pollution.
• The front side of the container can be suspended equipment name, manufacturer, operation procedures and other relevant information.
• The equipment has the characteristics of integration, small volume and convenient to transportation.
• The equipment saves construction costs.
• The entire sample preparation equipment is manufactured in the workshop and the equipment installation is not required on site.
• The disassembly and installation process of the surrounding panel is simple, which is convenient for workers to maintain the equipment.
• The sample collector has the function of weighing, and it will prompt alarm when the sample reaches the specified quality.

This mechanical sample preparation equipment can be matched with the coal sampling system，which is suitable to do the automatic sample preparation treatment of primary subsample for bulk material like coal，and especially suitable for automatic sample preparation of primary subsample on small and medium scale of coal transportation belt； this equipment can also be used for crushing and division of a large amount of sample after manual sampling．

As a Chinese sampling system manufacturer, TopSampler will be your trustworthy business partner. We provide the sample preparation plant, the cross belt sampling system and the auger sampling system for you. If you are interested, please feel free to contact us.