Distributor mechanism of vertical flour mill

Abstract

The utility model relates to a distributor mechanism of a vertical flour mill, which comprises a material receiving conical hopper mounted on the upper side of a millstone of the vertical flour mill, a blanking pipe is mounted at the lower end of the material receiving conical hopper, and at least three vertical fixing rods are mounted on the outer wall of the blanking pipe at intervals along the circumferential direction. Scraping plates matched with the vertical fixing rods to form an inverted T shape are fixed to the lower ends of the vertical fixing rods. The distributing device is favorable for better scraping materials into the grinding roller, uniform distribution is realized, and the material scraping effect is good.

Description

Technical Field

[0001] The utility model relates to a distributor mechanism of a vertical grinding mill. Background Art

[0002] The vertical mill is an important equipment for grinding inorganic powder fillers. When the vertical mill is in operation, the material is fed from the outside of the mill through the feed screw and then through the drop pipe into the center of the grinding disc. The material falling into the center of the grinding disc will gradually form a conical material pile.

[0003] Although the current vertical grinding mill has a distributor installed above the grinding disc, the distributor is only composed of a single scraper and is eccentrically set. It is not only simple in structure, but also has poor scraping effect and cannot distribute the material evenly. It is easy to have an uneven material layer, with local material layers being too thin or too thick, or a conical material pile still forming in the center of the grinding disc, which in turn causes unstable grinding of the grinding mill, aggravated vibration and other situations that affect production. Utility Model Content

[0004] The utility model aims to provide a distributor mechanism for a vertical grinding mill, which helps to better scrape materials into the grinding roller to achieve uniform distribution.

[0005] The technical solution of the present utility model is: a feeder mechanism of a vertical grinding mill, comprising a material receiving cone hopper for installation on the upper side of the grinding disc of the vertical grinding mill, a material drop pipe being installed at the lower end of the material receiving cone hopper, at least three vertical fixing rods being installed at intervals along the circumferential direction on the outer wall of the material drop pipe, and scrapers cooperating with the vertical fixing rods to form an inverted T shape being fixed at the lower ends of the vertical fixing rods.

[0006] Furthermore, three vertical fixing rods are installed on the outer wall of the blanking tube at intervals along the circumferential direction, and the scrapers at the lower ends of the three vertical fixing rods are arranged in a Y shape with the axis of the blanking tube as the center.

[0007] Furthermore, the angle between two adjacent scrapers is 120°.

[0008] Furthermore, the scraper is arranged horizontally and fixed obliquely on the lower end of the vertical fixing rod to form an angle with the horizontal plane.

[0009] Furthermore, the scrapers are arranged to be inclined in the same direction along the circumference.

[0010] Furthermore, connecting plates are fixed to the outer wall of the blanking tube at intervals along the circumferential direction, and the upper end of the vertical fixing rod is provided with a waist-shaped hole and is penetrated by a locking bolt connected to the connecting plate.

[0011] Furthermore, fixing plates for connecting with the side walls of the grinding cavity of the vertical grinding mill are fixed at intervals along the circumferential direction on the outer wall of the material receiving cone hopper.

[0012] Furthermore, the side wall of the material receiving cone hopper is connected to a transversely arranged spiral feeding mechanism, and the spiral feeding mechanism is provided with a raw material inlet.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] 1. The material distributor has a compact structure and adopts three Y-shaped scrapers to help evenly scrape the material dropped from the drop tube onto the grinding disc into each grinding roller, so as to achieve better uniform material distribution and good scraping effect, effectively avoiding material accumulation in the center of the grinding disc or local excessive thickness or thinness.

[0015] 2. The material of the spreader is easy to obtain, low in cost, simple and convenient to install, and the height can be slightly adjusted according to needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 It is a cross-sectional view of the utility model;

[0018] Figure 3 This is a schematic diagram of the scraper matching of the present utility model;

[0019] Figure 4 This is a schematic diagram of the installation of the distributor mechanism of the utility model in a vertical grinding mill;

[0020] In the figure: 10 - vertical grinding mill 11 - grinding disc 20 - receiving cone hopper 21 - fixing plate 30 - drop pipe 31 - connecting plate 32 - locking bolt 40 - vertical fixing rod 41 - waist-shaped hole 50 - scraper 60 - spiral feeding mechanism 61 - raw material inlet. DETAILED DESCRIPTION

[0021] To make the above features and advantages of the present invention more clearly understood, embodiments are given below with reference to the accompanying drawings for detailed description, but the present invention is not limited thereto.

[0022] refer to Figures 1 to 4

[0023] A material distributor mechanism for a vertical grinding mill includes a material receiving cone 20 mounted above a grinding disc 11 of a vertical grinding mill 10. A material dropper 30 is mounted at the lower end of the material receiving cone. Three vertical fixing rods 40 are mounted circumferentially on the outer wall of the material dropper. Each of the vertical fixing rods has a scraper 50 fixed to its lower end, forming an inverted T-shape with the scraper. The three scrapers can more evenly scrape the material.

[0024] In this embodiment, the scrapers at the lower ends of the three vertical fixed rods are arranged in a Y shape with the axis of the drop tube as the center, and the angle between two adjacent scrapers is 120 degrees, which helps to ensure that the falling material can be scraped evenly.

[0025] In this embodiment, to better scrape the material during the rotation of the grinding disc, the scraper is arranged horizontally and fixed at an angle to the lower end of the vertical fixing rod, forming an angle with the horizontal plane, and the scraper is tilted in the same direction along the circumference. Specifically, the angle formed by the scraper with the horizontal plane can be 30-60 degrees.

[0026] In this embodiment, connecting plates 31 are fixed to the outer wall of the blanking tube at intervals along the circumference. These connecting plates are provided with a pair of vertically spaced through-holes. The upper ends of the vertical fixing rods are provided with a pair of waist-shaped holes 41 through which locking bolts 32 connected to the connecting plates are passed. The waist-shaped holes allow the height of the vertical fixing rods to be adjusted, making installation more convenient.

[0027] In this embodiment, the outer wall of the receiving cone hopper is fixed with fixed plates 21 at intervals along the circumferential direction, and the other end of the fixed plate is used to connect with the side wall of the inner cavity of the vertical grinding mill, so that the cone hopper is hoisted on the upper side of the grinding disc.

[0028] In this embodiment, to facilitate the entry of raw materials into the receiving cone hopper, a transversely arranged screw feed mechanism 60 is connected to the side wall of the receiving cone hopper. The screw feed mechanism is provided with a raw material inlet 61, which can be connected to a hopper or a feed pipe, so that the material is fed into the receiving cone hopper through the screw feed mechanism and falls through the drop pipe. The screw feed mechanism is a screw conveyor driven by a motor via a rotating shaft.

[0029] If the present invention discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by integral molding using a casting process) (except where it is obviously not possible to use an integrated molding process).

[0030] In addition, unless otherwise stated, the terms used in any technical solution disclosed in the above-mentioned utility model to express positional relationships or shapes include states or shapes that are approximate, similar or close thereto.

[0031] Any component provided by the present invention can be assembled from multiple separate components, or can be a separate component manufactured by an integral forming process.

[0032] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A distributor mechanism for a vertical grinding mill, comprising a receiving cone hopper for mounting on the upper side of a grinding disc of the vertical grinding mill, characterized in that: A drop pipe is installed at the lower end of the material receiving cone bucket, and three vertical fixed rods are installed on the outer wall of the drop pipe at intervals along the circumferential direction. The lower ends of the vertical fixed rods are fixed with scrapers that cooperate with the vertical fixed rods to form an inverted T shape. The scrapers at the lower ends of the three vertical fixed rods are arranged in a Y shape with the axis of the drop pipe as the center; the scrapers are arranged horizontally and tilted to the lower end of the vertical fixed rod to form an angle with the horizontal plane.

2. The distributor mechanism of the vertical grinding mill according to claim 1, characterized in that: The angle between two adjacent scrapers is 120°.

3. The distributor mechanism of the vertical grinding mill according to claim 1, characterized in that: The scrapers are arranged to be inclined in the same direction along the circumference.

4. The distributor mechanism of the vertical grinding mill according to claim 1, 2 or 3, characterized in that: The outer wall of the blanking tube is fixed with connecting plates at intervals along the circumferential direction, and the upper end of the vertical fixing rod is provided with a waist-shaped hole and is penetrated by a locking bolt connected with the connecting plate.

5. The distributor mechanism of the vertical grinding mill according to claim 1, characterized in that: The outer wall of the material receiving cone hopper is fixed with fixing plates for connecting with the side wall of the grinding cavity of the vertical grinding mill at intervals along the circumferential direction.

6. The distributor mechanism of the vertical grinding mill according to claim 1 or 5, characterized in that: The side wall of the material receiving cone hopper is connected to a transversely arranged spiral feeding mechanism, and the spiral feeding mechanism is provided with a raw material inlet.

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