Groove body structure for large disc type filter and assembly method of groove body structure

Abstract

The invention discloses a tank body structure for a large disc filter and an assembling method thereof. The tank body structure comprises a tank body assembly, a mounting assembly, a rack and a supporting rod assembly, the groove body assembly is divided into a front half structure and a rear half structure along a central plane; the mounting assemblies are uniformly arranged around the four sides of the upper end of the tank shell; the machine frame is a rectangular frame and is arranged on a groove body installation foundation pit, and the upper surface of the machine frame and the lower surfaces of the installation assemblies are connected and arranged on the outer edge of a groove body. The supporting rod assemblies are arranged on the left side plate, the bottom plate and the right side plate of the groove shell at intervals in the front-back direction of the groove shell. The tank body is of a two-half structure, so that the tank body and the rack are transported in a split manner, and welding and assembling are implemented on site; by means of the structure, net space distribution between the filter disc and the single groove body can be even, it is guaranteed that vortexes are formed between the filter disc rotating concentrically and slurry in the single groove body, uniform distribution of the slurry in the groove is achieved, and the slurry is prevented from precipitating in the single groove body.

Description

technical field [0001] The invention relates to the technical field of disc filters, in particular to a tank body structure for a large disc filter and an assembling method thereof. Background technique [0002] Facing the increasing demand for production capacity, the enlargement of the disc filter has become an inevitable trend. The enlargement of the disc filter mainly refers to the increase of the filtration area of ​​the disc filter, and the increase of the filtration area needs to be increased by increasing the filter disc device. The number and diameter of the filter disc, and the filter disc device is concentrically rotating in the tank device. With the increase of the number and diameter of the filter disc, the length, width and height of the tank device have a corresponding increase. , For the disc filter, the largest size component in the transportation process is the tank device, and the large-scale increase of the length, width and height of the tank device caus...

AI Technical Summary

Problems solved by technology

[0002]Facing the increasing demand for production capacity, the enlargement of the disc filter has become an inevitable trend. The enlargement of the disc filter mainly refers to the filter area of ​​the disc filter The increase of the filter area needs to increase the number and diameter of the filter disc in the filter disc device, and the filter disc device is made of concentric rotation in the tank device. With the increase of the number and diameter of the filter disc, The length, width and height of the tank device have increased correspondingly. For the disc filter, the largest component in the transportation process is the tank device, and the tank device is long due to the large size of the disc filter. The large-scale increase in width and height will inevitably lead to the length, width and height of the tank device exceeding the transportation limit, making it impossible to transport as a whole

[0003]The filter disc is assembled on the central shaft by several filter plates. The increase of the diameter of the filter disc will inevitably lead to the weight of each filter plate, which makes the replacement of the filter cloth more difficult. The heavy degree is greatly increased. For this reason, for the non-removable filter plates used in large-scale disc filters, each longitudinal section through the center is spindle-shaped, that is, the outer ring of the filter disc is narrow and the inner ring is wide. Using this filter plate It is very convenient to replace the filter cloth without disassembling the filter plate. However, each single groove of the existing tank body is of equal width structure, which will result in a large net space between the outer ring of the filter disc and the single groove of the tank body. The net space between the inner ring of the filter disc and the single slot of the tank body is small, resulting in uneven distribution of the net space between the filter disc and the single slot, and the rotation of the filter disc in a single slot of equal width cannot correct the slurry in the uneven net space. Playing a complete stirring role will cause the sedimentation of the slurry at the bottom of the tank, which may easily lead to slurry sinking accidents

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