Steel ball feeding auxiliary device of mineral admixture ball mill

Abstract

The utility model discloses a steel ball feeding auxiliary device of a mineral admixture ball mill. The steel ball feeding auxiliary device comprises a storage bin, a first conveying pipe, a second conveying pipe and a telescopic device, wherein the first conveying pipe is obliquely arranged, the higher end of the first conveying pipe is communicated with an outlet in the bottom of the storage bin, and the upper end of the storage bin is open. The second conveying pipe is horizontally arranged and is perpendicular to the first conveying pipe, the lower end of the first conveying pipe is fixedly connected with the side wall of the tail end of the second conveying pipe, pipe cavities of the first conveying pipe and the second conveying pipe are communicated, the head end of the second conveying pipe is located above a feeding bin of the ball mill, and the second conveying pipe is supported on the feeding bin of the ball mill. The end of a telescopic rod of the telescopic device is in a groove shape or the telescopic rod is a pipe body, and the telescopic rod is aligned with the through hole in the end face of the head end of the second conveying pipe. According to the steel ball feeding auxiliary device disclosed by the utility model, the feeding amount of the steel balls can be effectively controlled through the matching of all the parts, and the steel ball feeding difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ball mills, in particular to a steel ball adding auxiliary device for a mineral admixture ball mill. Background Art

[0002] Mineral admixture refers to inorganic mineral fine powder added to concrete to improve the performance of concrete. It has the effect of improving the mechanical properties, workability, durability and other aspects of hardened concrete, and can also reduce the amount of cement to a certain extent. Mineral admixtures need to be ground into fine powder before they can be added to concrete, such as slag, limestone powder, silica fume, steel slag powder, phosphorus slag powder, zeolite powder, etc. The preparation of mineral admixtures is usually completed by a ball mill: after the mineral material is added to the cylinder of the ball mill, the cylinder is driven to rotate by the transmission device, and the material and steel balls therein adhere to the inner wall of the cylinder under the action of inertial centrifugal force and rotate together. After reaching a certain height, the material and steel balls fall freely under the action of gravity, and the steel balls are used to impact the material. By repeating the above process, the material is gradually ground. It can be seen that steel balls are an important part of the ball mill. During use, the steel balls are gradually reduced due to the wear of the materials. In order to ensure the ball milling effect, new steel balls need to be added to the ball mill regularly. Since steel balls are heavy, they are usually added by lifting a container loaded with steel balls to the feed bin of the ball mill and then pouring them into the mill. However, this method is difficult to operate and the dosage is difficult to control in actual operation. Utility Model Content

[0003] In view of the above problems, the utility model provides a mineral admixture ball mill steel ball feeding auxiliary device, which can effectively control the feeding amount of steel balls and reduce the difficulty of steel ball feeding. To achieve the above purpose, the technical solution of the utility model is as follows.

[0004] An auxiliary device for adding steel balls to a ball mill for mineral admixtures comprises: a storage bin, a first conveying pipe, a second conveying pipe and a telescopic device. Wherein: the first conveying pipe is arranged obliquely, and its higher end is connected to the bottom outlet of the storage bin, and the upper end of the storage bin is open. The second conveying pipe is arranged horizontally and is perpendicular to the first conveying pipe, and the lower end of the first conveying pipe is fixedly connected to the side wall of the tail end of the second conveying pipe and the tube cavities of the two are connected, the head end of the second conveying pipe is located above the ball mill feed bin, and the second conveying pipe is supported on the ball mill feed bin. The end of the telescopic rod of the telescopic device is groove-shaped or the telescopic rod is a tube body, and the telescopic rod is aligned with the through hole of the head end face of the second conveying pipe, so as to enter the second conveying pipe to push out the steel balls therein and drop them into the ball mill feed bin.

[0005] Furthermore, the head end of the second conveying pipe is an oblique cut, and the cut is gradually inclined inward from top to bottom to reduce the mineral material from entering the second conveying pipe.

[0006] Furthermore, it also includes a supporting structure, which is fixed on the outer side wall of the ball mill feed bin, and the upper end of the supporting structure supports the bottom surface of the second conveying pipe.

[0007] Furthermore, the upper end of the support structure is in the shape of an arc-shaped groove, and the second conveying pipe is supported in the arc-shaped groove.

[0008] Furthermore, the rear end side wall of the second conveying pipe is connected to an air compressor to blow and remove dust from the second conveying pipe.

[0009] Furthermore, the through hole is aligned with the center of the steel ball in the second conveying tube so as to push the steel ball to move.

[0010] Furthermore, a connecting plate is fixed on the outer wall of the tail end of the second delivery pipe, and one end of the connecting plate extends outside the head end of the second delivery pipe in a suspended state. It also includes a cover plate arranged vertically and covering the head end port, and the top end of the cover plate is rotatably connected to the connecting plate through a pin shaft, so that the head end port of the second delivery pipe can be closed without affecting the discharge of the steel balls.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the mineral admixture ball mill steel ball feeding auxiliary device of the utility model can automatically feed the steel balls in the storage bin to the head end of the second feeding pipe by using the storage bin and the inclined first feeding pipe, so that when steel balls need to be added, the telescopic rod of the telescopic device can be used to push the steel balls in the head end of the second feeding pipe into the feed bin of the ball mill, and then into the ball mill. After the telescopic rod is retracted, the dry balls in the first feeding pipe are automatically added to the head end of the second feeding pipe, and the required number of steel balls can be added to the ball mill in this way, thereby realizing the precise control of the amount of steel balls added and reducing the difficulty of adding steel balls. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0013] Figure 1 It is a top view of the auxiliary device for adding steel balls to the mineral admixture ball mill in the following embodiments.

[0014] Figure 2 It is a side view of the auxiliary device for adding steel balls to the mineral admixture ball mill in the following embodiments.

[0015] Figure 3 Schematic diagram of the structure of the second conveying pipe and the telescopic device in the following embodiments.

[0016] Figure 4 Schematic diagram of the structure of the telescopic rod in the following embodiments.

[0017] Figure 5 Schematic diagram of the structure of another second delivery pipe in the following embodiments.

[0018] Figure 6 Schematic diagram of the structure of the cover plate in the following embodiments.

[0019] The numbers in the above drawings represent: 1-storage bin, 2-first conveying pipe, 3-second conveying pipe, 4-telescopic device, 5-ball mill feeding bin, 6-telescopic rod, 7-through hole, 8-steel ball, 9-support structure, 301-first connecting plate, 302-cover plate, 303-second connecting plate, 304-pin shaft. DETAILED DESCRIPTION

[0020] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or component needs to have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0021] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by ordinary technicians in the technical field to which the present invention belongs. The mineral admixture ball mill steel ball dosing auxiliary device of the present invention is further explained in conjunction with the drawings and specific embodiments of the specification.

[0022] refer to Figures 1 to 4, an example of a steel ball dosing auxiliary device for a mineral admixture ball mill is provided, comprising a storage bin 1, a first conveying pipe 2, a second conveying pipe 3 and a telescopic device 4. Specifically: the storage bin 1 is a vertically arranged cylindrical structure, the upper end of which is open and the bottom surface is a conical structure, so that the steel balls stored in the storage bin 1 automatically enter the first conveying pipe 2 from its bottom outlet. The first conveying pipe 2 is arranged obliquely, and its higher end is connected to the bottom outlet of the storage bin 1. The second conveying pipe 3 is arranged horizontally and is perpendicular to the first conveying pipe 2. The lower end of the first conveying pipe 2 and the tail end side wall of the second conveying pipe 3 are fixedly connected and the two tube cavities are connected. The head end of the second conveying pipe 3 is located above the ball mill feed bin 5, and the bottom surface of the end of the second conveying pipe 3 is supported on the ball mill feed bin 5 to increase the stability of the second conveying pipe 3.

[0023] The telescopic device 4 is arranged at the tail end of the second conveying pipe 3, and the telescopic rod 6 of the telescopic device 4 is aligned with the through hole 7 on the end face of the tail end of the second conveying pipe 3, so as to enter the second conveying pipe 3 to push out the steel ball 8 therein and then drop it into the ball mill feed bin 5. The through hole 7 is aligned with the center of the steel ball 8 in the second conveying pipe 3, so as to push the steel ball 8 to move. It should be understood that the through hole 7 should be arranged at a position lower than the center of the end face of the second conveying pipe 3, because the diameter of the second conveying pipe 3 is larger than the diameter of the steel ball 8, therefore, when the steel ball 8 stays on the bottom surface in the second conveying pipe 3, the center of the steel ball 8 does not coincide with the central axis of the second conveying pipe 3, but is below it. The end of the telescopic rod 6 is groove-shaped or the telescopic rod 6 is a tube body, so as to increase the contact area between the two when pushing the steel ball 8 to move.

[0024] In this embodiment, the storage bin 1 and the inclined first delivery pipe 2 can automatically deliver the steel balls 8 in the storage bin 1 to the head end of the second delivery pipe 3, so that when steel balls need to be added, the telescopic rod 6 of the telescopic device 4 can be used to push the steel balls 8 in the head end of the second delivery pipe 3 into the ball mill feed bin 5, and then into the ball mill. After the telescopic rod 6 is retracted, the dry balls in the first delivery pipe 2 are automatically added to the head end of the second delivery pipe 3. In this way, the required number of steel balls 8 can be added to the ball mill. At the same time, since the second delivery pipe 3 is perpendicular to the first delivery pipe 2, the steel balls 8 in the storage bin 1 can stop automatically after sliding to the bottom end through the first delivery pipe 2 and entering the head end of the second delivery pipe 3. Only after being further pushed by the telescopic rod 6 will they enter the ball mill, thereby achieving precise control of the amount of steel balls added and reducing the difficulty of adding steel balls.

[0025] refer to Figure 5In another embodiment, the head end of the second conveying pipe 3 of the mineral admixture ball mill steel ball feeding auxiliary device of the above-mentioned embodiment is an oblique cut, and the cut is gradually inclined inward from top to bottom, so as to reduce the blockage caused by the mineral material entering the second conveying pipe 3 when the raw materials of the mineral material to be ground (used for ball milling to prepare the mineral admixture) are added to the ball mill feed bin 5, thereby increasing the difficulty of the steel ball 8 running in the second conveying pipe 3.

[0026] refer to Figure 2 , Figure 3 or Figure 5 In another embodiment, the mineral admixture ball mill steel ball dosing auxiliary device of the above embodiment further includes a support structure 9, which is fixed on the outer side wall of the ball mill feed bin 5, and the upper end of the support structure 9 supports the bottom surface of the second conveying pipe 3 to increase the stability of the second conveying pipe 3. The upper end of the support structure 9 can also be set to an arc groove shape, and the second conveying pipe 3 is supported in the arc groove, so as to form a more stable support for the second conveying pipe 3.

[0027] In another embodiment, the second conveying pipe 3 of the mineral admixture ball mill steel ball dosing auxiliary device in the above-mentioned embodiment has an air inlet on the side wall at the rear end. When in use, the air inlet is connected to an air compressor so that compressed air can be delivered to the second conveying pipe 3 when needed to blow away the dust, materials, etc. deposited therein to prevent blockage that affects the movement of the steel balls 8.

[0028] In another embodiment, the mineral admixture ball mill steel ball feeding auxiliary device of the above embodiment further includes a cover connected to the upper port of the storage bin 1 to prevent some materials from entering the storage bin 1 and causing blockage when adding the mineral materials to be ground into the ball mill feed bin 5, thereby affecting the movement of the steel balls 8 in the storage bin 1. When it is necessary to add steel balls to the storage bin 1, the cover can be opened, and the cover can be closed after the addition is completed.

[0029] In another embodiment, the mineral admixture ball mill steel ball feeding auxiliary device of the above embodiment also has a second conveying pipe sealing mechanism. Figure 3 and Figure 6, the closing mechanism includes a first connecting plate 301, a cover plate 302, a second connecting plate 303 and a pin 304. Wherein: the first connecting plate 301 is divided into two pieces, which are symmetrically fixed on both sides of the top surface of the outer wall of the head end of the second conveying pipe 3, and one end of the first connecting plate 301 extends outside the head end of the second conveying pipe 3 in a suspended state. The cover plate 302 is vertically arranged and covers the head end port, and the two second connecting plates 303 are symmetrically fixed on the top edge of the cover plate 302. The second connecting plate 303 and the first connecting plate 301 are both provided with through holes, and are rotatably connected by the pin 304, so that the cover plate 302 can be flipped. The above-mentioned closing mechanism can not only close the tail end port of the second conveying pipe 3, but also does not affect the discharge of the steel balls 8. When the steel balls 8 are not being conveyed, the cover plate 302 is dynamically sealed at the head end of the second conveying pipe 3 under the action of its own weight to prevent some materials from entering the second conveying pipe 3 when adding the mineral materials to be ground into the ball mill feed bin 5. When the telescopic rod 6 of the telescopic device 4 pushes the steel balls 8 outward from the head end of the second conveying pipe 3, the cover plate 302 is also pushed open, and after the steel balls fall into the ball mill feed bin 5, the cover plate 302 returns to its original state to seal the head end of the second conveying pipe 3.

[0030] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A mineral admixture ball mill steel ball feeding auxiliary device, characterized in that: include: A storage bin, a first conveying pipe, a second conveying pipe and a telescopic device; wherein: the first conveying pipe is arranged obliquely, and its higher end is connected to the bottom outlet of the storage bin, and the upper end of the storage bin is open; the second conveying pipe is arranged horizontally and is perpendicular to the first conveying pipe, and the lower end of the first conveying pipe is fixedly connected to the tail end side wall of the second conveying pipe and the tube cavities of the two are connected, the head end of the second conveying pipe is located above the ball mill feed bin, and the second conveying pipe is supported on the ball mill feed bin; the end of the telescopic rod of the telescopic device is groove-shaped or the telescopic rod is a tube body, and the telescopic rod is aligned with the through hole of the head end face of the second conveying pipe.

2. The mineral admixture ball mill steel ball feeding auxiliary device according to claim 1, characterized in that: The head end of the second conveying pipe is an oblique cut, and the cut gradually tilts inwards from top to bottom.

3. The mineral admixture ball mill steel ball feeding auxiliary device according to claim 1, characterized in that: A connecting plate is fixed on the outer wall of the tail end of the second conveying pipe, and one end of the connecting plate extends outside the head end of the second conveying pipe in a suspended state; it also includes a cover plate vertically arranged and covering the head end port, and the top end of the cover plate is rotatably connected to the connecting plate through a pin shaft.

4. The mineral admixture ball mill steel ball feeding auxiliary device according to claim 1, characterized in that: The rear end side wall of the second delivery pipe is connected to the air compressor.

5. The mineral admixture ball mill steel ball feeding auxiliary device according to claim 1, characterized in that: The through hole is aligned with the center of the steel ball in the second delivery tube.

6. The mineral admixture ball mill steel ball feeding auxiliary device according to any one of claims 1 to 5, characterized in that: It also includes a supporting structure, which is fixed on the outer side wall of the ball mill feed bin, and the upper end of the supporting structure supports the bottom surface of the second conveying pipe.

7. The mineral admixture ball mill steel ball feeding auxiliary device according to claim 6, characterized in that: The upper end of the support structure is in the shape of an arc-shaped groove, and the second conveying pipe is supported in the arc-shaped groove.

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