Recently, three sets of straw-specific progressing cavity pumps developed by Zhejiang Nanchi Pump Co., Ltd. have passed assembly and inspection and been shipped to the customer’s straw resource utilization project site. Developed based on the company’s self-owned patent, this conveying equipment solves the common clogging issue of straw fibre conveying and ensures stable operation of the complete straw crushing, recycling and biomass conversion system.
With the advancement of green agriculture, straw resource recovery has become a vital approach to control agricultural non-point source pollution and develop circular agriculture. Crushed straw features long fibres and strong entanglement, making the conveying section a long-standing bottleneck in the whole process. Conventional progressing cavity pumps are prone to straw winding and accumulation at the joints between the end cover, pump body and feeding chamber, which leads to frequent blockages, unexpected shutdowns and restricted production capacity for many biogas and organic fertilizer projects.
Targeted at on-site working conditions, the patented straw-specific progressing cavity pump from Zhejiang Nanchi Pump solves the fibre clogging problem through optimized structural design. The flow passage at the joint of the end cover, pump body and feeding chamber is redesigned for smoother material flow. Meanwhile, the rotor profile and pitch are specially modified to achieve superior conveying capacity. It can continuously and stably transport crushed fibrous materials such as rigid corn straw and tough wheat straw, greatly reducing clogging failures and on-site maintenance workload.
The three pumps delivered this time have undergone strict factory tests to meet the customer’s operating requirements. Every link including design, precision machining, assembly and acceptance test is under strict quality control, so that the equipment can be quickly installed and put into straw conveying service after arrival.
The delivery of patented equipment marks the transformation of technical advantages into practical value. The batch application of straw-specific pumps further demonstrates Nanchi Pump’s technical strength in conveying equipment for high-fibre media. Once put into operation, the pumps will support stable straw feeding for the production of biogas, organic fertilizer and other products, extend the agricultural circular industrial chain and promote the reduction and resource utilization of agricultural waste.
Zhejiang Nanchi Pump will follow up the installation and commissioning of the project and provide supporting technical services. The company will keep focusing on biomass and environmental conveying equipment, continuously upgrade the straw pump product line, and offer customized straw conveying solutions for agricultural cooperatives, environmental engineering contractors and biomass enterprises to empower the green and low-carbon development of agriculture.
