JQB5×6-10   This shear pump is specifically designed for shearing the polymers and clays in the drilling fluid. The polymers (or clays) in the drilling fluid system should be sheared thoroughly in advance to improve their performance before entering the drilling fluid system, so that their effects can be fully exerted. If the polymers (or clays) are not sheared thoroughly, the vibrating screen mesh may get clogged during the first cycle, resulting in a significant loss of polymers, difficulty in removing large-sized solid particles in the drilling fluid, and an increase in drilling costs; at the same time, in the drilling fluid, if the polymers (or clays) are not sheared thoroughly, the drilling fluid will produce many "fish eyes", which will harm the formation, reduce the permeability of the formation, and decrease the production of the oil and gas layer. Practical use has proved that the JQB5×6-10 shear pump has excellent performance. It can provide a high degree of shearing to rapidly hydrate high-molecular polymers (or clays), solving the prominent problems of poor hydration of polymers (or clays) in the drilling fluid. At the same time, the JQB5×6-10 shear pump can reduce the polymer dosage by more than 15% and the bentonite dosage by more than 30%, and can also reduce the mud cake and fluid loss, reduce the shear rate of the drilling fluid, improve the gel strength, and thus reach the advanced level of similar foreign products. In addition, through design improvements, its shaft seal structure is more reliable, and its use and maintenance are also more convenient.