To increase jaw crusher capacity, pay attention to the following points:

1. Strictly control feed size to prevent clogging and jamming.

The design dimensions of the jaw crusher feed opening are based on the following formula: Feed opening size = (1.1-1.25) * Maximum feed particle size.

Many production personnel fail to understand this and often use the measured feed opening size as the maximum feed size. Consequently, raw materials with larger than specified particle sizes can easily jam the jaw crusher. While blockages are not frequent, each occurrence can cause the equipment to operate improperly for a significant period of time. Therefore, strict control of raw material particle size is one of the most important prerequisites for ensuring the proper operation of the jaw crusher.

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2. Strictly control feed rate to prevent clogging caused by excessive feed.

Many companies have undergone technical upgrades to their silos due to severe production impacts caused by insufficient initial feed. However, due to the lack of feed rate control devices, these upgraded silos often suffer from another overcorrection phenomenon: overfeeding.

Because the jaw crusher operates on a semi-rhythmic principle, overfeeding will prevent material from being crushed quickly, and the crushed material cannot be removed promptly, leading to material jamming. Therefore, both material shortages and overfeeding will affect the jaw crusher's production capacity.

3. Rhythmic Feeding: Controlling Feed to Ensure Normal Jaw Crusher Operation

Currently, the crushing stage of mineral processing plants often uses end chutes for feeding, with two-thirds or even the entire feeder exposed outside the hopper. This remote feed port transforms the feeder into a vibrating chute, resulting in poor feeding speed and severe wear. The ideal feeder position should be within the top third of the equipment, but vertical feeding is strictly prohibited to prevent the equipment from being compressed and losing its vibration capacity, or affecting conveying efficiency.

The disadvantages of vertical feeding are particularly severe when using dump trucks for direct unloading. Therefore, adjusting the discharge hopper angle to ensure smooth material discharge without material compression and aligning the feeder's rhythm with the jaw crusher's processing rhythm is the key to ensuring proper feeding.

4. Adjust the feeder angle to fully utilize the feeder's screening function and achieve pre-screening.

Vibrating feeders often have grate bars, which provide some screening capabilities. However, in actual use, due to factors such as vibration amplitude and feed angle, the equipment is prone to lumps of material blocking the grate bars during screening, rendering it ineffective. In this situation, many companies block the grate bars with steel plates, converting them into plate feeders.