Slurry pumps are equipment that can be used to pump hydraulic mixtures with a high content of soil, sand and sludge. If we compare them with fecal pumps, then centrifugal sludge devices are capable of operating under extreme conditions, when the density of inclusions reaches 2500 kg/m3. At the heart of the flow part of products of this type are:
- armor disc;
- wheels;
- case.
Reviews on the principle of operation of slurry pumps
Slurry pumps, according to buyers, can be used for pumping media of different viscosities, they may contain impurities with solids, you can read more about this below. The principle of operation of devices of this type, according to buyers, is based on the displacement of sludge by a rotating shaft inside the stator.
The pumped mass is pumped along the axis of the pump by hermetic chambers, they form a moving part. The volume of the cavities and their number, according to buyers, affect the pressure produced. This equipment is characterized by a uniform supplyflow. The device has a high level of suction.
Reviews about the area of use
Slurry pumps, according to buyers, can be used in many areas of human activity. For example, in the mining and processing industry, this equipment pumps wastewater, enrichment products, mining and transportation. In the conditions of metallurgical, rolling and steel plants, such devices:
- pump gas sludge, agglomeration water, granulated slag;
- dust removal:
- wet clean;
- transport solids;
- perform wet dust removal.
Slurry pumps, according to buyers, also perform well in gravel production, where gravel and sand are prepared, as well as raw materials are extracted. According to consumers, such equipment is excellent for the production of sugar factories, where it is necessary to prepare wash water, transport liquids, waste water and carry out the bleaching process. Suitable for use in glass industry, oil refinery and aluminum smelter.
Reviews and characteristics of horizontal slurry pumps
Slurry pumps can be horizontal. They are designed for coarse solids and aggressive slurries. They are characterized by high performance and reliability even whendifficult working conditions. Customers love that high-quality composite materials are used in the production of such equipment, which form the basis of wear parts, and this becomes the key to the quality of such devices.
Among the technical specifications, it is worth highlighting the flow, which reaches 20,000 m3/h, as well as a head equal to 145 m or less. This equipment is designed on the basis of some principles, among them:
- maximum efficiency;
- low consumption;
- power;
- standardization;
- minimal wear;
- ease of maintenance.
Features and specifications of vertical slurry pumps
Vertical slurry pump can be classified into two types, among them:
- armored vertical;
- semi-submersible vertical.
The hydraulic part of armored pumps is similar to the hydraulic part of horizontal ones. On sale you can find installations in dry and wet modifications. The supply is provided at 3000 m3/h, while the maximum immersion depth is 5 m. The head reaches 145 m.
Submersible Pump Features
The TOYO DPE submersible slurry pump delivers up to 400 m3/h, the temperature of the pumped medium can vary up to +60 °C and up to 80 - on request. The medium to be pumped must havepH level ranging from 4 to 9.5. Working depth of immersion reaches 30 m.
Description of pump VSHN-150
The above 150 slurry pump is a centrifugal vertical equipment that is used for pumping slurry with fine solids. The density of the latter can reach 1300 kg/m3. Suspended particles can have a hardness of no more than 3 on the Mohs scale.
The size of individual elements can reach 20 mm, but no more, they can contain 20% in volume. This centrifugal slurry pump is capable of pumping medium with temperatures ranging from +4 to +50 °C. This device can be used to carry out auxiliary operations when pumping the flushing solution.
Technical characteristics of VSHN-150
The delivery is 150 m3/h, the head is 30 m. The efficiency of the pump is 57% while the motor speed is 150 rpm. The power of the equipment is equivalent to 30 kW, the mass of the pump is 360 kg. The diameter of the inlet and outlet is 125mm.
Toyo hydraulic pump description
The hydraulic slurry pump of the above brand can have a power ranging from 11 to 124 kW. This equipment is characterized by high power, wear resistance, productivity and high torque. The device is single-stage, may have a reinforced design. It is sealed, corrosion resistant and armored.
Workingthe impeller is made of alloy steel, in which the Cr content is high, in the range of 24-28%. The short shaft is quite strong, it is mounted on bearings and stuffing boxes. They operate in an oil bath and provide a tight fit even under severe operating conditions.
Slurry type hydraulic pumps can be installed on the boom of an amphibious or conventional excavator when the equipment is connected to the hydraulic system. It is possible to use this equipment on the ground load frame of the intake device.
Solid inclusions in the pumped medium can contain up to 70%. The maximum fraction of solid elements can be 120 mm. The temperature of the pumped medium is equivalent to 60°C or less. The maximum specific gravity is 1.4kg/dm3. The acidity level of the pumped mixture reaches 9.5 pH. The maximum immersion depth is 30 m, if we are talking about special versions, then this parameter increases to 120 m. In this case, the version with a pressure compensator is presented.
Conclusion
Slurry pumps cannot be used in idle mode. If this recommendation is neglected, then you may encounter premature wear of the nodes. A number of manufacturers provide for a dry-running sensor that blocks the operation of the unit if necessary.
