A blender for a wet granulator

Abstract

A kind of agitator of wet granulator, the agitator is bottom entry, by mounting hole and paddle, the lower edge of paddle is provided with convex position.Paddle is 3 pieces, the convex position of the lower edge of paddle is located at the front, middle, rear of paddle respectively, the length of convex position is one third of the length of paddle, the position of convex position is arranged in turn, not overlapping, the height of convex position is 5-10mm.The utility model discloses by improving the shape of agitator paddle, can well solve the equipment dead lock, material waste and other problems generated by the excessive friction of high viscosity material in the process of wet granulation.

Description

Technical Field

[0001] This utility model belongs to the field of pharmaceutical equipment, specifically relating to a stirrer used on a wet granulation machine. Background Technology

[0002] Highly viscous materials are common in traditional Chinese medicine production. During wet granulation, these materials often cause frictional heating and caking between the agitator blade and the bottom of the container in the wet granulator, resulting in excessive resistance on each blade, leading to seizing, and sometimes even motor damage due to excessive load. This problem not only wastes the granulated material but also affects production progress, causing significant losses to the company. Furthermore, because the material is completely adhered to the agitator blade, subsequent disassembly and cleaning of the blade is extremely difficult, time-consuming, and labor-intensive.

[0003] Chinese patent CN212092137U discloses a mixing impeller for a wet mixing granulator. The entire impeller is a one-piece design without welding, and the impeller is an eccentric impeller with blades that do not extend beyond the center of the circle. The blades have a certain upward angle, and the back surface near the bottom of the pot is designed with a slope. The end width is increased, and the edge is designed with a slope and a curved arc. A mechanical material-driving and sealing structure is designed at the bottom center. The reasonable design of the mixing impeller reduces the friction between the blades and the pot, improves the stability of the material, ensures the uniformity of material granulation and the completeness of discharge, improves the mixing efficiency and cutting efficiency, and reduces energy consumption.

[0004] Chinese Patent CN204365231U – A stirring paddle for a wet granulation machine, comprising a stirring paddle body with reinforcing ribs in an arc shape; each stirring blade has a main rear angle at its end away from the stirring paddle body, and a side rear angle on its side; the reinforcing ribs on each stirring blade are welded and fixed to the stirring blade, and the reinforcing ribs are located inside the main rear angle. The main rear angle can reduce the friction between the end face of the stirring blade and the material, increase the shearing force, and reduce the amount of material residue on the existing material cylinder wall; the side rear angle reduces the friction with the side of the material cylinder. Utility Model Content

[0005] The purpose of this invention is to provide a stirrer for use on a wet granulation machine to solve the problem of material sticking to the equipment during the wet granulation process of highly viscous materials.

[0006] To achieve the above objectives, the inventors have provided the following technical solution:

[0007] A mixer for a wet granulation machine, the mixer being bottom-entry type, consisting of mounting holes and blades, with a protruding part on the lower edge of each blade.

[0008] In the above-mentioned agitator, the impeller blades are preferably three in number.

[0009] In the aforementioned agitator, the protruding parts of the lower edge of the blades are located at the front, middle, and rear of the blades, respectively.

[0010] In the aforementioned agitator, the length of the protruding portion at the lower edge of the blade is preferably one-third of the blade length.

[0011] In the aforementioned agitator, the protruding parts of the lower edge of the blades are preferably arranged sequentially and do not overlap.

[0012] In the above-mentioned agitator, the height of the protruding part at the lower edge of the blade is preferably 5-10mm.

[0013] In the above-mentioned agitator, the height of the protruding part at the lower edge of the blade is preferably 6-7 mm.

[0014] The agitator provided by this utility model is used on a wet granulation machine. It is a bottom-entry type agitator with a protruding part on the lower edge of the agitator blade. This allows the material to be cut during the mixing process. By limiting the position of the protruding part on each blade, the material is mixed and cut multiple times at different positions. While ensuring that all the material at the bottom of the tank is mixed evenly, this design reduces the adhesion of the material and reduces the friction area between the agitator blade and the material at the bottom of the tank that is prone to caking. The resistance of a single blade is greatly reduced, which effectively solves the problems of equipment seizure, motor damage, and material waste. It greatly improves the success rate of wet granulation of high-viscosity materials and reduces production losses. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the agitator of the wet granulation machine described in this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the agitator blade of the wet granulator described in this utility model.

[0017] In the diagram, 1 is the mounting hole, 2 is the agitator blade, and 3 is the protruding part at the lower edge of the blade. Detailed Implementation

[0018] The agitator of the wet granulation machine of this utility model will be further described in detail below with reference to the accompanying drawings.

[0019] like Figure 1 As shown, the agitator of the wet granulation machine of this utility model is a bottom-entry agitator, which consists of a mounting hole 1 and a blade 2. Each blade 2 has a protruding part 3 on its lower edge.

[0020] The number of impeller blades 2 in the stirrer described in this utility model can be three.

[0021] like Figure 2As shown, the protruding part 3 on the lower edge of the blade 2 can be located at the front, middle and rear of the blade, respectively. The lengths of the protruding parts 3 on the lower edge of the blade 2 are equal and can be one-third of the length of the blade 2. The positions of the protruding parts 3 on the lower edge of the blade 2 can be arranged sequentially without overlapping.

[0022] The height of the protruding part 3 at the lower edge of the impeller blade 2 of the present invention can be 5-10mm, preferably 6-7mm.

[0023] In use, follow the standard operating procedure: install the agitator on the agitator shaft at the bottom of the wet granulator's mixing tank, and then proceed with granulation.

Claims

1. A stirrer for a wet granulation machine, said stirrer being bottom-mounted and comprising a mounting hole (1) and blades (2), characterized in that, The blade (2) has a protruding part (3) on its lower edge. There are 3 blades (2). The protruding parts (3) on the lower edge of the blade (2) are located at the front, middle and rear of the blade (2).

2. The stirrer according to claim 1, characterized in that, The length of the protruding part (3) at the lower edge of the blade (2) is one-third of the length of the blade (2).

3. The stirrer according to claim 1, characterized in that, The positions of the protruding parts (3) at the lower edge of the blade (2) are arranged sequentially and do not overlap.

4. The stirrer according to claim 1, characterized in that, The height of the protruding part (3) at the lower edge of the blade (2) is 5-10mm.

5. The stirrer according to claim 1, characterized in that, The height of the protruding part (3) at the lower edge of the blade (2) is 6-7mm.

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