Scraper device for stirring tank

Abstract

The utility model discloses a scraper device for a stirring tank, which comprises a pipeline connected with a stirring shaft, a plurality of scrapers are uniformly distributed in the axial direction of the pipeline, each scraper is provided with a kidney-shaped hole, a scraper rod penetrates through the kidney-shaped hole, and the scraper rod penetrates through the kidney-shaped hole and then is connected with the pipeline. The scraper and the scraper rod are not in completely rigid connection, a certain relative displacement space exists between the scraper and the scraper rod, relative displacement can be generated between the scraper and the scraper rod under the condition that the scraper is not disassembled by adjusting different rotating speeds or rotating directions of the stirring shaft during cleaning, cleaning dead angles do not exist, and cleaning efficiency is improved. The cleaning efficiency and the cleaning effect are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to agitating equipment structure field especially, relates to a scraper device for agitator. BACKGROUND

[0002] Agitator is used for agitating and mixing materials in the tank body, and is widely used in chemical, food or pharmaceutical field, and the agitator mainly relies on the rotation of the stirring shaft to drive the scraper to complete the stirring and mixing of the materials in the tank body, after the same batch of materials is completely stirred and mixed, the agitator needs to be cleaned, especially the stirring shaft and the blade, after the previous batch of materials is completely cleaned, the next batch of materials can be stirred and mixed, so as to prevent the mutual pollution of materials between different batches, and most of the traditional scrapers are connected on the stirring shaft through the pin shaft, there is a cleaning dead angle, the cleaning device in the tank body cannot completely clean, and the scraper can only be removed and cleaned separately, so that the overall cleaning efficiency is low, and the present application provides a solution to the problem. SUMMARY

[0003] The utility model discloses a scraper device for agitator can complete the cleaning of the scraper without disassembling the scraper, avoid the mutual pollution of materials caused by the cleaning dead angle of the agitator.

[0004] Technical scheme: the scraper device for agitator, connecting pipe is connected with the stirring shaft, the axial direction of the connecting pipe is uniformly provided with a plurality of scrapers, the scraper is provided with a waist type hole, the scraper rod is penetrated in the waist type hole, and the scraper rod is connected with the connecting pipe after penetrating the waist type hole.

[0005] As preferred, the scraper rod includes a limiting block and a rod body, one end of the rod body penetrates the scraper rod and is connected with the connecting pipe, the other end is connected with the limiting block, and the outer diameter of the limiting block is greater than the height of the waist type hole.

[0006] The scraper rod completes the connection of the scraper and the connecting pipe, and the limiting block completes the limiting of the rod body.

[0007] As preferred, the transverse length of the waist type hole is longer than the rod diameter of the rod body.

[0008] The transverse length of the waist type hole is longer than the rod diameter of the rod body, which ensures that the scraper and the scraper rod can slide relative to each other.

[0009] As preferred, the connecting pipe is provided with a sleeve, the sleeve is a hollow pipe, the outer wall of the sleeve is welded with the connecting pipe, and the inner wall of the sleeve is connected with the scraper rod.

[0010] The scraper rod is connected with the pipeline through the sleeve, which can improve the connecting strength of the scraper rod and the pipeline.

[0011] Preferably, the sleeve is provided with a sealing ring on the side end face facing the scraper rod.

[0012] The sealing ring can ensure that the material in the tank does not enter the sleeve and accumulate inside the sleeve, causing a new cleaning dead angle.

[0013] Preferably, the scraper is provided with not less than two waist-shaped holes parallelly arranged on the scraper.

[0014] The arrangement of not less than two waist-shaped holes ensures the connecting strength of the scraper and the pipeline.

[0015] Preferably, the side end face of the scraper facing the tank wall is beveled.

[0016] The beveled side end face of the scraper can avoid scratching the inner wall of the tank when the scraper contacts the inner wall of the tank.

[0017] Advantages: Compared with the prior art, the utility model has the following advantages:

[0018] The arrangement of the waist-shaped hole on the scraper ensures that the connection between the scraper and the pipeline is relatively loose, and the scraper is opened at a certain angle relative to the pipeline under the driving of the water flow in the tank, so that there is no cleaning dead angle among the pipeline, the scraper and the scraper rod, and the cleaning of the scraper can be completed by using the water flow in the tank or the cleaning device without disassembling the scraper, thereby improving the cleaning efficiency and cleaning effect. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0020] Fig. 2 It is an enlarged view of the connecting structure of the scraper rod and the pipeline in the utility model.

[0021] Fig. 3 It is an enlarged view of the scraper in the utility model.

[0022] Wherein: 1, pipeline; 2, scraper; 3, waist-shaped hole; 4, scraper rod; 5, sleeve; 6, sealing ring; 41, limiting block; 42, rod body. DETAILED DESCRIPTION

[0023] The technical scheme of the utility model will be further described below with reference to the drawings.

[0024] Referring to the drawings Figs. 1-3The utility model discloses a scraper device for stirring tank, including with the pipeline 1 of stirring shaft connection, the axial even distribution of pipeline 1 has multiple scrapers 2, is provided with the waist type hole 3 on scraper 2, is passed through the scraper rod 4 in the waist type hole 3, the scraper rod 4 is passed through the waist type hole 3 and is connected with pipeline 1.

[0025] In this embodiment, the scraper rod 4 includes a limiting block 41 and a rod body 42, wherein one end of the rod body 42 is connected with the pipeline 1 after penetrating through the scraper 2, the other end is connected with the limiting block 41, the outer diameter of the limiting block 41 is greater than the height of the waist type hole 3, the scraper 2 is connected with the pipeline 1 through the scraper rod 4, and the limiting block 41 limits the position of the rod body 42.

[0026] In this embodiment, the transverse length of the waist type hole 3 is longer than the rod diameter of the rod body 42, which ensures that the scraper 2 and the scraper rod 4 can slide relative to each other. When the scraper 2 is impacted by the liquid, the scraper 2 and the scraper rod 4 slide relative to each other, and the scraper 2 opens a certain angle relative to the pipeline 1, so that there is no cleaning dead angle among the pipeline 1, the scraper 2 and the scraper rod 4.

[0027] In this embodiment, the pipeline 1 is provided with a sleeve 5, the sleeve 5 is a hollow pipe, the outer wall of the sleeve 5 is welded with the pipeline 1, and the inner wall of the sleeve 5 is connected with the scraper rod 4. The scraper rod 4 is connected with the pipeline 1 through the sleeve 5, which can improve the connection strength between the scraper rod 4 and the pipeline 1.

[0028] In this embodiment, the side end face of the sleeve 5 facing the scraper rod 4 is provided with a sealing ring 6, which can ensure that the material in the tank body does not enter the sleeve 5 and accumulate inside the sleeve 5, causing a new cleaning dead angle.

[0029] In this embodiment, two waist type holes 3 are arranged in parallel on the scraper 2, and the waist type holes 3 are perpendicular to the pipeline 1. The use of two scraper rods 4 to connect with the pipeline 1 can further improve the connection strength between the scraper 2 and the pipeline 1.

[0030] In this embodiment, the side end face of the scraper 2 facing the tank wall is inclined, which can prevent the scraper 2 from scratching the inner wall of the tank when the scraper 2 contacts the inner wall of the tank.

[0031] When the utility model works, due to the arrangement of the waist type hole 3, the side of the scraper 2 facing the liquid opens a certain angle relative to the pipeline 1 after being pressed by the liquid. The connection between the scraper 2 and the scraper rod 4 is not completely rigid, and there is a certain relative displacement space between them. Therefore, adjusting the speed or rotating direction of the stirring shaft during cleaning can cause the relative displacement between the scraper 2 and the scraper rod 4, and there is no cleaning dead angle, which can improve the cleaning efficiency and cleaning effect.

Claims

1. A scraper device for a stirred tank comprising a duct connected to a stirring shaft, characterized in that: The pipeline is uniformly distributed with a plurality of scrapers in the axial direction, the scraper is provided with a waist-shaped hole, a scraper rod is penetrated in the waist-shaped hole, and the scraper rod is connected with the pipeline after penetrating the waist-shaped hole.

2. A scraper device for a stirred tank as claimed in claim 1, characterized in that: The scraper rod comprises a limiting block and a rod body, one end of the rod body is connected with the pipeline after penetrating the scraper rod, and the other end is connected with the limiting block, and the outer diameter of the limiting block is larger than the height of the waist-shaped hole.

3. A scraper device for a stirred tank as claimed in claim 2, characterized in that: The transverse length of the waist-shaped hole is longer than the rod diameter of the rod body.

4. A scraper device for a stirred tank as claimed in claim 1, characterized in that: The pipeline is provided with a sleeve, the sleeve is a hollow pipe, the outer wall of the sleeve is welded with the pipeline, and the inner wall of the sleeve is connected with the scraper rod.

5. A scraper device for a stirred tank as claimed in claim 4, characterized in that: A sealing ring is arranged on the side end face of the sleeve towards the scraper rod.

6. A scraper device for a stirred tank as claimed in claim 1, characterized in that: The scraper is provided with not less than two waist-shaped holes in parallel, and the waist-shaped hole is perpendicular to the pipeline.

7. A scraper device for a stirred tank as claimed in claim 1, characterized in that: The side end face of the scraper towards the tank wall is a bevel.

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