Centrifugal pumps or sewage pumps cannot meet the operating requirements for high viscosity liquids. The result of using these two pumps is that the pump motor speed slows down, the motor heats up, and the liquid cannot be discharged for a long time, leading to motor burnout.

Single screw pump, also known as snake pump or Moyno pump. This pump is a high viscosity pump that has been widely used in the past. The rotor is a single head male screw made of metal material (circular in cross-section perpendicular to the axis), and the stator is a special double helix made of rubber material (with a track shaped hole in cross-section perpendicular to the axis). The sealing line formed by the rotor rolling in the stator gradually moves towards the outlet end, causing the liquid to move along the axis from the inlet to the outlet. The advantage of this pump is that it delivers smoothly, with minimal pulsation and no stirring effect on the material. It is also insensitive to solid particles. However, due to the high frictional resistance, its energy consumption is significantly higher than other forms of rotary pumps. Compared with gear pumps, under the same flow rate, pressure and other indicators, the power configuration is basically 3:1. In addition, due to factors such as the stator material, the stator wears out quickly and needs to be replaced frequently, and it cannot be used in high-temperature environments.

Twin screw pump, also known as Qu/rnby pump. The working rotor of this screw pump consists of two equally sized screw shafts, with the left-hand thread on one shaft meshing with the right-hand thread on the other shaft. Due to the action of the synchronous gear, the two shafts do not contact each other, but maintain a 0 A gap of about 0.5-0.15mm is formed to form independent sealed chambers. As the screw rotates, the liquid inside the sealed chamber is carried from the inlet to the outlet. Twin screw pumps have some advantages of both single screw pumps and cam pumps. In recent years, twin screw pumps have undergone significant structural optimization, such as simultaneously processing left and right threads on the same screw shaft to counteract axial forces, and replacing external rolling bearings with built-in sliding bearings (copper sleeves) that directly support the outer circle of the screw. The synchronous gear has also been changed to the middle of the screw, greatly simplifying the structure and reducing leakage points to one. However, due to the immersion of synchronous gears in high-pressure media at the outlet, they are obviously not suitable for high temperature or highly corrosive media. Due to the high precision of screw processing, assembly, and operation, it is sensitive to impurities, especially when the material has lumps that do not react properly, it is more likely to cause pump jamming. In addition, its energy consumption is basically twice that of gear pumps.

High viscosity liquid pumps can be used. High viscosity pumps are a new type of positive displacement pump developed according to the needs of industries such as petroleum, chemical, coatings, oils and fats, pharmaceuticals, dyes, and food. Due to the ability to use different materials and structures, this product is widely used for transporting media with different properties and viscosities.

Pneumatic diaphragm pumps are a good choice for transporting highly viscous liquids Pneumatic diaphragm pump is capable of pumping high viscosity media such as coal slurry or various types of sludge. The key is to provide the manufacturer of the pneumatic diaphragm pump with the viscosity of the medium being transported. If the viscosity is too high, it will cause a decrease in the pumping capacity and frequency of the pneumatic diaphragm pump. If the liquid level of the medium is lower than that of the pneumatic diaphragm pump but the viscosity of the medium being transported is unknown, it is necessary to at least understand whether the coal slurry or other medium can flow. If it is a liquid that can flow, it can generally be used. However, when the medium is mud, the distance and height of the suction line should be as short as possible, and the gas supply pressure and air volume should be sufficient. Otherwise, the pneumatic diaphragm pump is prone to failure due to insufficient pressure, resulting in the inability to suck up the medium or a small outlet volume and outlet pressure. Low phenomenon. Diaphragm pumps can not only extract high viscosity media such as coal slurry and oil, but also extract powdery particles similar to lime powder (different models of diaphragm pumps have different particle sizes). This pump is an improved pump product based on ordinary diaphragm pumps. In addition to using the intake source pressure to drive the suction effect of the diaphragm pump, electric cycloidal diaphragm pump products and electric turbine diaphragm pump products can also be selected for the diaphragm pump.