Key Questions to Ask When Ordering Slurry Pump Wet Parts

May. 06, 2024

Tobee® Frequently Asked Questions for Your Slurry Pumps

Tobee® What can you recommend to increase safe operation of my slurry pump?

Apart from the usual guarding of rotating components, it is important to get advice from the manufacturer or their dealer. This is especially true if buying a Slurry Pump secondhand — just because the manual says it was designed to pump 2,000 gpm, it may not pump anywhere close to that if the duty isn’t the same as the original. Each duty is very specific. Let’s say you installed the Slurry Pump and had the wrong size pipe, you could have a critical issue with material settling out, which may even cause the Pump to explode.

This phenomenon has been reported by the Mine Safety and Health Administration (2009 bulletin) as a major concern. If a condition occurs that blocks the inlet pipe and outlet pipe of the Slurry Pump, it is estimated that 40% of the energy from the motor will go to heating the contents of the wet end of the Slurry Pump. The heat rise can be rapid and steam pressure will build, and an explosion can occur. Confirming the correct flow rate to keep materials in suspension and maintaining the design percent solids and particle size can reduce this risk. Installing power and pressure monitoring sensors that are interlocked and/or alarmed are also advised. Tobee’s recently developed thermocouple device is another safety feature when fitted and alarmed.

Good process design, proper mechanical design of sumps and piping, and use of safety related add-ons are factors determining the safe operation of a Slurry Pump. The manufacturer is always the best place to start.

When I reduced the length of pipe line, why did the slurry pump trip out on overload?

Because the Slurry Pump is running at fixed speed and hasn’t been told that you removed a section of pipe, it will keep spinning away but now finds it is easier to slurry pump. If you look at your slurry pump curve, you will see that if you lower the head (resistance) that the Slurry Pump is pumping against, the new duty point will move to the right and the speed curve and head will intersect at a higher flowrate. The higher flowrate means more work is being done and thus power demand is greater. It would be the same if you reduced the height you are pumping to. The opposite occurs if you increase the head by adding pipe or vertical height to the discharge point. The danger with increasing the head without changing the speed is the lower flowrate that results, which may be below the critical setting velocity. Contact the slurry pump manufacturer if you are contemplating changes to any part of your slurry pumping system.

Can I use oil in my slurry pump bearings?

Tobee’s slurry pump bearing assemblies are designed around the use of grease lubrication - this means that the seals being used are not suitable for oil. It is more complicated to design for oil and any leakage is far more troublesome for both lack of lubrication and the spillage. Grease lubrication simplifies maintenance and is appropriate for the rpms typically seen in this type of equipment

I have an old slurry pump sump that my grandfather used in our old plant, can I use that for my new plant?

Rather than just say no, which would be the first reaction from any Slurry Pump manufacturer, let’s examine why you probably don’t want to consider this. From our perspective, 90% of problems are on the suction side of a Slurry Pump. Of those problems, 90% of those are associated with poor sump design, such as wrong wall angles (buildup in valley angles and corners), too shallow (vortexing), too big (settling and sloughing), too small (air entrainment, vortexing) and incorrect suction line (entrainment and NPSH issues). The science of sump design doesn’t start or finish with a cube or an old truck-mounted water tank — a correctly designed sump can save you many thousands of dollars in maintenance on your Slurry Pump, or even save a life.

My slurry pump bearings are running hot, what should I do?

How hot are they? Tobee’s slurry pump bearings are designed to run at a relatively high temperature — we set a maximum of 120 ℃ (248 ℉). Possible reasons for bearings running hot logically include slurry pump bearing failure; however, typically there will be other symptoms, such as unusual noise. Bearing failure can occur soon after gland failure if slurry has entered the seal at the wet end of the Slurry Pump.

It may simply be a faulty bearing. Were original equipment manufacturer bearings used during the last repair? It wouldn’t be the first time that price over value resulted in low-quality bearings being substituted.

Failure, or symptoms of failure, can also occur due to high belt tension (drive end) or air entrainment or cavitation (wet end), which will ultimately damage the bearings. Confirm the temperature rise (rises over time or almost immediate) and ultimate temperature. Look for other symptoms, such as noise. Ensuring personal safety, use a listening stick against the housing for signs that the bearings are not running smoothly. Consult the factory with the range of symptoms.

Fortunately, Tobee’s slurry pump bearing assemblies are simple to repair — purchase a bearing repair kit and follow the instructions. Be prepared with an oven for heating, but the assembly requires no preload settings — just locate the bearings in place, lubricate and put the end caps on, finish lubrication and you are done.

HEBEI TOBEE PUMP CO.,LIMITED

Email: Operation1@tobeepump.com

| Skype: Tobee.Pump | Mob: +86-15633815619

www.tobeepump.com www.slurrypumpsupply.com

www.tobee.cc www.hydroman.cn www.tobee.store

How To Select a Dredge Pump 101

What is a dredge pump?
A dredge pump is a type of centrifugal pump specifically designed to remove and transport sediment, silt, or debris from bodies of water. It is a crucial component of dredging equipment used in various industries, such as mining, construction, and environmental remediation.

How does a dredge pump work?
Dredge pumps use centrifugal force to create a vacuum that draws in sediment-laden water. The rotating impeller then imparts kinetic energy to the mixture, accelerating it through the pump casing and discharging it through the pump outlet.

What factors should be considered when selecting a dredge pump?
Factors to consider when selecting a dredge pump include:

Type of material to be dredged (e.g., sand, mud, gravel)
Dredging depth and distance
Required flow rate and head pressure
Pump efficiency and wear resistance
Operating conditions (e.g., temperature, pH)
Budget and project timeline.

What are the different types of dredge pumps?
Common types of dredge pumps include:

Submersible dredge pumps
Hydraulic dredge pumps
Cutter suction dredge pumps
Horizontal dredge pumps.

How do you determine the appropriate size of a dredge pump?
The size of a dredge pump is determined based on factors such as the volume of material to be dredged, dredging depth, required flow rate, and head pressure. Hydraulic calculations and pump performance curves select a given application’s most suitable pump size.

What are the advantages of submersible dredge pumps?
Advantages of submersible dredge pumps include:

Ability to operate underwater without the need for priming
Compact design for easy deployment and maneuverability
High efficiency and performance in abrasive environments
Minimal noise and vibration during operation.

How do you ensure the longevity of a dredge pump?
Regular maintenance and proper operation are essential to ensure a dredge pump’s longevity. This includes:

Inspecting and replacing worn parts as needed
Lubricating bearings and seals
Flushing and cleaning the pump system
Monitoring performance and addressing any issues promptly.

What are the critical considerations for pump installation and setup?

Critical considerations for pump installation and setup include:

Proper alignment and positioning of the pump

Adequate support and anchoring to prevent movement

SHANGLISHI supply professional and honest service.
Related links:
What are your concerns when buying silicone baby ...
Baby Lotions, Oils, Powders & Creams
A silicone bottle
Revolutionizing Urban Farming: Shipping Container Greenhouses - How?"Have shipping container greenhouses changed the game for urban agriculture?
Key Questions to Ask When Ordering High-Quality Syringe Without Graduation
How to Choose a Multi Level Greenhouse: A Step-By-Step Guide
The Benefits of Using Growing Tomatoes in an Unheated Greenhouse
Correct installation of inlet and outlet piping
Ensuring sufficient clearance and access for maintenance.

How do you troubleshoot common issues with dredge pumps?
Common issues with dredge pumps include cavitation, wear of impeller and liners, and blockages. Troubleshooting involves identifying the root cause of the problem and implementing appropriate solutions, such as adjusting pump speed, replacing worn parts, or clearing blockages.

What are the safety considerations when operating a dredge pump?
Safety considerations when operating a dredge pump include:

Proper training for personnel
Adherence to safety protocols and regulations
Use of personal protective equipment
Regular inspection and maintenance of equipment
Implementation of emergency response plans.

What machine is used for dredging?
Dredging is typically performed using specialized equipment such as dredges, which may include:

Cutter suction dredges
Hydraulic dredges
Excavator dredges
Clamshell dredges.

What is the purpose of dredging?
The purpose of dredging is to:

Maintain navigable waterways for shipping and maritime traffic
Prevent flooding by improving drainage and water flow
Restore aquatic habitats and ecosystems by removing sediment and debris
Support construction projects such as bridge and port infrastructure.

How does a water dredge work?
A water dredge uses hydraulic or mechanical forces to excavate sediment from the bottom of bodies of water. The dredged material is transported via pipelines or barges to a designated disposal site or processing facility.

What is dredging and its types?
Dredging removes sediment, silt, or debris from the bottom of bodies of water to maintain navigable channels, improve water quality, or reclaim land. Common types of dredging include:

Hydraulic dredging
Mechanical dredging.

How is dredging good?

Dredging can have several positive effects, including:
Maintaining navigable waterways for shipping and maritime traffic
Preventing flooding by improving drainage and water flow
Restoring aquatic habitats and ecosystems by removing sediment and debris
Supporting construction projects such as bridge and port infrastructure.

How is dredging done?
Dredging is typically done using specialized equipment such as dredges, which may employ hydraulic or mechanical methods to excavate sediment from the bottom of bodies of water.

What are the three significant effects of dredging?
The three significant dredging effects are:

Maintaining navigable waterways
Preventing flooding
Restoring aquatic habitats and ecosystems.

What is the depth of dredging?
The dredging depth depends on project requirements, maritime needs, and environmental considerations. Dredging depths can range from shallow areas to deeper channels.

What is the cost of dredging?
Dredging costs vary depending on project size, duration, location, equipment, and disposal methods. For large-scale projects, they can range from thousands to millions.

How is dredging quantity calculated?
Dredging quantity is calculated based on factors such as the volume of material, dredging depth, and sediment density. Hydraulic calculations and survey data estimate the amount of material to be removed.

What are the two main types of dredging?
The two main types of dredging are hydraulic dredging and mechanical dredging. Hydraulic dredging uses water jets or suction to excavate sediment, while mechanical dredging uses buckets, scoops, or cutting devices to remove material.

Contact us to discuss your requirements of Slurry Pump Wet Parts. Our experienced sales team can help you identify the options that best suit your needs.