This device is a gold washing pump (also known as a gold dredge suction pump), a specialized industrial pump used in the gold mining and processing scene. The core information is as follows:
1. Core Purpose
Mainly used for alluvial gold mining in river channels/tailings ponds: by pumping mud containing gold-bearing sand, the mixture of sand and gold particles is transported to the mining equipment (such as a shaking table, sluice box), achieving the separation of alluvial gold; It can also be used for river channel dredging, slurry transportation, and other scenarios.
2. Working Principle
It is a type of centrifugal pump, driven by an electric motor through a belt wheel to rotate the impeller in the pump at high speed, generating centrifugal force to suck the gold-containing slurry into the pump chamber, and then deliver it through the outlet pipe; some models also have a stirring wheel, which can stir the sedimented gold at the bottom of the water into a slurry before being extracted.
3. Key Features
- High wear resistance: the flow components (pump body, impeller) are often made of high chromium alloy materials, which can withstand the wear of sand and gold particles, with a service life that is 2-3 times that of ordinary cast iron pumps.
- Large particle permeability: capable of transporting solid particles up to 5 centimeters in diameter, suitable for complex media containing sand and gold;
- High adaptability: Adjustable speed through belt drive, suitable for different flow/head requirements; some models support underwater operations (diving depth up to 80 meters).
4. Application Scenario: In addition to gold mining, it can also be used in river dredging, tailings transportation, coal mine coal slurry cleaning, and power plant fly ash transportation, etc., for the transportation of slurries containing solid particles. Would you like me to help you organize a list of daily operation precautions for the gold washing pump? We will conduct a deep analysis of the gold washing pump's structural details + material details + compatibility details from three aspects: "
1. Structural Details
1. Pump body and interface
- The pump body is designed with a helical shell: the blue shell is a typical centrifugal helical shell, which can efficiently convert the kinetic energy generated by the impeller rotation into pressure energy, ensuring the delivery pressure of the sand-containing slurry;
- Large-diameter flange connection: The circular flange (with multiple bolt holes) located above the pump body in the diagram, the connection diameter is typically between 150-300mm, allowing large sand/gold particles to pass through smoothly, avoiding clogging.
2. Transmission System
- Multi-groove triangle belt pulley: The red pulley body has a multi-groove (at least 6 grooves in the diagram) structure, which can increase the contact area between the belt and the pulley, improve the transmission efficiency, and simultaneously distribute the load to avoid the single groove belt from breaking due to the large load of the sand pump.
- Adjustable bearing base: The bearing base on the left side of the pump shaft is equipped with a bolt adjustment mechanism (spring and adjustment screw visible in the diagram), which allows for flexible adjustment of the belt tension to meet the speed requirements for different operating conditions.
3. Base and Support
- One-piece cast steel base: The blue base is a cast-integrated component with high rigidity, which can reduce vibration during the operation of the sand pump and prevent leaks at the pipe/flange connections due to vibration.
- Pump body support frame: The blue supports on both sides of the pump body are reinforced structures that can withstand the impact loads of the sand-containing slurry, preventing the pump body from deforming.
Section Two: Material Details
Overflow parts (core wear-resistant area)
- Pump body/impeller: From the appearance luster, it belongs to a high chromium alloy material (HRC hardness ≥ 60), which can withstand the "erosion + abrasion" of sand and gold particles. This material is the standard configuration for gold washing pumps (ordinary cast iron materials are worn through in 1-2 weeks).
- Pump shaft: Usually made of 45 steel with quenched and tempered treatment, with chrome plating on the surface, ensuring both strength and resistance to mortar corrosion.
2. Non-overflow components
- Belt Pulley: The red wheel body is made of cast iron (low cost and easy to process), but it is coated with anti-rust paint on the surface.
- Base/Support: Cast Steel Material, with higher strength than cast iron, suitable for heavy-duty operations of sand pumps.
III. Adapter Details
1. Particle Passing Ability
- Judging from the interface size and the volume of the volute, this pump can pass the largest particles with a diameter of about 50mm, which can accommodate the common sand grains and small pebbles in the gold mining process, avoiding pump jam.
2. Operating Condition Adapability
- Belt Drive Design: Supports the combination with motors ranging from 75-160kW. By replacing different diameter belt pulleys, it is possible to adjust the flow rate from 50-300m³/h and the lift from 15-50m. It is suitable for shallow beach gold panning (low lift and high flow rate) or deep riverbed gold panning (high lift and low flow rate).
3. Maintenance Details
- The quick-open cover plate on the top of the pump body (the bolt connection structure at the top of the pump body shown in the diagram): You can open the pump body without disassembling the pipeline, which is convenient for cleaning the internal sand/gold particles blockage or replacing the worn impeller.
Shall I help you organize a maintenance schedule for the wear parts of this gold dredge pump?
