The tar - insulated cam rotor pump operates based on the principle of a cam rotor pump. It relies on two synchronously moving rotors driven by an external synchronous gearbox. Under the drive of the drive shaft, the two rotors rotate synchronously in opposite directions, creating a relatively high vacuum degree and discharge pressure. The two rotors divide the rotor chamber into several small spaces. At the inlet, a suction force is generated to draw in tar. The rotors operate in a specific sequence, pushing the tar from the inlet to the outlet. This process repeats continuously to achieve continuous transportation.
A jacket structure is set on parts such as the pump head, housing, and seal cavity. When heating is required, heat - carrying media such as hot steam and heat - conducting oil are introduced into the jacket cavity to provide heat to the pump body and the tar being transported inside, preventing the tar from solidifying or increasing in viscosity due to a drop in temperature. If cooling is needed, coolant can be introduced to maintain a constant temperature of the pump body, ensuring that the tar is in a suitable temperature state for transportation.
Coal Chemical Industry: In the production, storage, and transportation of coal tar, it is used to extract coal tar from equipment such as reaction kettles and storage tanks and transport it to subsequent processing units, such as distillation towers and hydrogenation reactors, for further treatment.
Iron and Steel Industry: During the purification process of coke oven gas, it is used to transport the tar in the tar - ammonia water mixture from equipment such as gas - liquid separators to tar storage tanks or tar treatment systems.
Petrochemical Industry: In some processing processes using heavy oil and residue oil as raw materials, high - viscosity by - products similar to tar may be produced. The tar - insulated cam rotor pump can be used for the transportation and treatment of these by - products.
Environmental Protection Industry: In scenarios such as the treatment of industrial wastewater containing tar and the recovery of tar after exhaust gas treatment, the collected tar can be transported and centrally processed.
Good Insulation Performance: The jacket is integrally cast with the pump body. Compared with welded jackets, it can effectively reduce heat loss, ensuring that the tar remains within a suitable temperature range during transportation and maintaining its fluidity.
Stable and Reliable Transportation: It has the general characteristics of a cam rotor pump. When transporting tar, it operates smoothly, with no obvious pulsation, low vibration, and low noise, avoiding any impact on the quality of tar or the production process due to instability during transportation.
Strong Self - priming Ability: It can quickly suck tar from storage containers or low - lying positions into the pump and transport it. There is no need for additional complex auxiliary liquid - suction equipment, reducing the operation process and equipment investment.
Wide Adaptability: Appropriate materials and sealing forms can be selected according to the properties of tar and process requirements. It can adapt to the high - viscosity and corrosive characteristics of tar. The applicable medium temperature is generally between - 10°C and 200°C, and the applicable medium viscosity is between 1.0 cSt and 300,000 cSt.
Easy Maintenance: In some tar - insulated cam rotor pumps, the bearing cavity is enlarged, and the bearing part becomes an integral component. Seal repair, replacement, and upgrade are relatively easy, and the gear clearance can be adjusted to meet the process requirements under different tar viscosities.
