The method to adjust the discharge opening of a crusher depends on the type of crusher you are using. Here are general steps for some common types:
-
Jaw Crusher:
- Manual Adjustment: Usually involves loosening the tension rod and adjusting the position using hydraulic tools or a wrench to shift the toggle plate into the desired position, then retightening the tension rod.
- Hydraulic Adjustment: In some jaw crushers, this can be done by using hydraulic cylinders to push the wedge block into the desired position. Engage the hydraulic system and adjust as needed.
-
Cone Crusher:
- Manual Adjustment: Adjust by either rotating the bowl manually or using hydraulic tools to move the bowl up or down. Ensure the crushers' concave and mantle remain correctly aligned.
- Hydraulic Adjustment: Use the hydraulic setting adjustment system to increase or decrease the closed side setting (CSS). The adjustment can be made remotely or on the control panel.
-
Gyratory Crusher:
- Adjust moving the main shaft up or down. This typically involves hydraulic pistons or hand-operated jacks to shift the main shaft vertically and thus adjust the discharge opening.
-
Impact Crusher:
- Adjusting either the apron gap setting or the rotor speed. This can typically be done using hydraulic or manual controls on modern machines.
General Steps for Hydraulic Adjustment:
- Stop the Crusher: Ensure the machine is turned off and locked out/tagged out to prevent accidental operation.
- Loosen Locking Mechanisms: Most crushers have some form of locking mechanism that needs to be loosened before adjustments can be made.
- Adjust Settings: Using the designated system (hydraulic, manual, mechanical), adjust the gap to the desired setting.
- Tighten Locking Mechanisms: After adjustments are made, re-tighten locking mechanisms to secure the new setting.
- Restart Machine: Turn on the crusher and check the new settings.
Always refer to the manufacturer's manual for model-specific instructions and safety information.
