Module type hydraulic classification device with variable cone angle

Abstract

The invention discloses a module type hydraulic classification device with a variable cone angle. The module type hydraulic classification device with the variable cone angle is characterized in that the module type hydraulic classification device with the variable cone angle comprises three modules; the first module is composed of an upper shell body, an overflowing collecting groove and a feeding well, the upper shell body is located on the upper portion and of a conical structure, the overflowing collecting groove is formed around the outer conical surface located below a feeding port of the upper shell body, and the feeding well is arranged in the feeding port of the upper shell body in a penetrating mode through a fixing piece in the mode that the feeding well and a hydraulic classification machine body are coaxial; the second module is composed of a lower shell body, the lower shell body is located in the middle and buckled with the upper shell body, the cone angle of the lower shell body is variable, and the lower shell body is of a reverse-cone structure; the third module is composed of a hollow column section and a conical discharging section, the hollow column section is installed in the position of a discharging port formed in the bottom of the lower shell body and provided with a top water inlet pipe opening, and the conical discharging section is arranged at the bottom of the hollow column section; the upper end of the feeding well is higher than an upper edge opening of the overflowing collection groove, and the lower end of the feeding well is located above the connection portion between the second module and the third module.

Description

technical field [0001] The invention relates to the field of hydraulic grading of fine-grained minerals, in particular to a modular hydraulic grading device with a variable cone angle. Background technique [0002] As an important part of the mineral processing operation, the classification operation plays a vital role in the entire mineral processing process. In the coal preparation plant, hydraulic classification is mainly used in the treatment process of slime water, which includes sedimentation, concentration and dehydration. In metal ore dressing plants, hydraulic classification is mainly used to classify the selected materials in order to obtain several narrow-grade materials for further classification. [0003] At present, among the hydraulic classification devices commonly used in domestic and foreign dressing plants, by referring to the content of the second volume of the second volume of the "Mineral Processing Handbook" published by the Metallurgical Industry Pre...

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Problems solved by technology

[0007] However, there are many problems in the fine-grained mineral hydraulic classification devices that have been applied at present: ①The cone angle of the cone, the key component of the hydraulic classification device, cannot be changed once it is put into use; ②The inclined plate classification device and the side row The grader of the material is often blocked by the inclined plate and the side discharge port, which affects the classification effect; ③The hydraulic classification device is an integrated system, and the feeding pipe and the discharge port are prone to wear and tear, and need to be replaced when replacing the classification device complete set

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