How to prevent gear pumps from clogging when pumping adhesive

The core to prevent clogging when using a gear pump to draw glue lies in strict operating procedures (especially shutdown cleaning) and equipment selection optimization. The main methods are as follows: How to Prevent Jamming: Operation and Maintenance 1. Key step: Thorough cleaning immediately after shutdown This is the most direct and effective preventive measure. After the gear pump is used, the pump chamber must be cleaned immediately, as the adhesive can solidify at room temperature, causing the gears to seize and preventing the pump from restarting. Purpose: To completely remove residual glue and prevent its hardening. Method: Depending on the adhesive properties, use an appropriate solvent or cleaning agent (such as the diluent recommended by the manufacturer) to thoroughly rinse the pump chamber and flow channels. 2. Special Maintenance: Rust Prevention Treatment for Long-Term Inactivity If the gear pump will remain idle for an extended period after cleaning, lubricating oil (such as rust preventive oil) should be sprayed into the pump chamber to ensure smooth operation upon the next start-up. 3. Operation Adjustment: Optimize the pump's operating parameters Adjust the rotation speed: The higher the viscosity of the adhesive, the lower the required rotation speed of the gear pump should be to reduce operational resistance and shear heating. · Inspect the pipes: Ensure the inlet pipe is leak-free and the outlet pipe is free of blockages or excessive sharp bends. How to Prevent Jamming: Selection and Design Proper equipment selection can eliminate problems at their root.

Precise Model Selection

· Matching viscosity: Select a dedicated gear pump model based on the viscosity of the adhesive you need to transport. Excessively high or low viscosity may cause operational abnormalities or stalling.

R1: "Gel" must be translated as "gel."  

Consider specialized designs: There are already dedicated gear pump designs on the market for viscous and easily coagulated media such as gel. These designs feature isolation and protection between the drive components (motor, gears) and the pumping chamber (the part in contact with the adhesive), enabling more effective protection of core components.

2. Optimize the process

Properly preheating or maintaining the temperature of the adhesive raw materials can reduce their viscosity, improving fluidity and alleviating the pumping load.

Troubleshooting Guide

If the pump jams during operation, you can inspect it according to the following steps:

Step 1: Immediately shut down the machine

Avoid forcibly starting to prevent damage to the motor or pump body.

Step 2: Investigate external and operational causes

Is the pump dry-running? Check the feed inlet to ensure the pump is filled with adhesive and avoid running it dry.

2. Is the medium viscosity appropriate? Excessively high glue viscosity is a common cause of jamming.

3. Is the pipeline unobstructed? Check for blockages in the outlet pipeline.

Step 3: Inspect the pump body and internal components

If all the above is normal, the issue may lie with the pump itself

Is there any foreign object inside the pump? Impurities or solidified blocks in the adhesive may jam the gears.

· Have the gears or bearings worn out? Prolonged use may cause component wear, and changes in clearance can also lead to jamming.

If you are unable to resolve the issue, it is recommended to contact the equipment supplier or a professional technician.

summary

Overall, to ensure thecgear pump operates smoothly when drawing glue, you need:

Strictly Adhere to Procedures: Enforce the ironclad rule of immediately cleaning the pump chamber after shutdown.

2. Correct Model Selection: Choose a matching pump type based on the adhesive viscosity, or consider a specialized design.

3. Optimization operation: Adjust the rotation speed and control the glue temperature to optimize the conveying conditions.

If you can tell me the type of adhesive you are delivering (such as epoxy resin, silicone sealant, UV glue, etc.) and the approximate viscosity range, I can provide you with more specific operational recommendations.