A cement grinding mill feeding mechanism

Abstract

This utility model discloses a feeding mechanism for a cement grinding mill, relating to the technical field of feeding mechanisms. It includes a feeding hopper, with a liner inserted inside the hopper and a fixing block fixedly connected to the top of the liner. A connecting ring is fitted onto the outer wall of the feeding hopper, and connecting frames are symmetrically welded to the sides of the connecting ring. This utility model, by providing the liner and connecting plate, effectively prevents materials from directly colliding with the inner wall of the feeding hopper, thus protecting the feeding hopper. When the liner reaches the end of its service life, the operator can quickly replace it. The design includes positioning rods and insertion rings. During use, the two sets of positioning rods enable positioning of the liner, allowing the positioning groove in the fixing block and the limiting block to quickly align. The insertion ring and fixing ring, in conjunction with these features, improve the stability and tightness of the liner when it is inserted into the inner wall of the feeding hopper.

Description

Technical Field

[0001] This utility model relates to the field of feeding mechanism technology, and in particular to a feeding mechanism for a cement grinding mill. Background Technology

[0002] In the cement processing stage, in order to refine cement particles and increase the contact area between cement and water, so as to carry out the hydration reaction more fully and thus improve the early strength and later strength of cement, a ball mill is used to grind cement. As an important part of the ball mill, the performance of the feeding mechanism directly affects the working efficiency and product quality of the grinding mill. The most common ball mill feeding mechanism is the feed hopper.

[0003] Currently, existing feed hoppers experience wear and tear on their inner walls after prolonged operation due to the impact of cement material entering them. This not only affects the smooth flow of material but may also cause material to accumulate at the worn areas. Consequently, it is necessary for operators to disassemble and replace the entire feed hopper. Since the bottom of the feed hopper is typically connected to the conveying pipeline via flanges and multiple sets of bolts, operators need to use auxiliary tools to gradually remove the bolts on the flanges. The entire replacement process is cumbersome and the maintenance cost is relatively high. Therefore, we propose a new feeding mechanism for cement grinding mills to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a feeding mechanism for a cement grinding mill.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cement grinding mill feeding mechanism includes a feeding hopper, a liner plate inserted inside the feeding hopper, and a fixing block fixedly connected to the top of the liner plate. A connecting ring is fitted on the outer wall of the feeding hopper, and connecting frames are symmetrically welded to the sides of the connecting ring. A connecting plate is inserted inside the connecting frame, and a connecting spring is connected to the side of the connecting plate. The other end of the connecting spring is connected to the outer wall of the connecting ring. A limit block is connected to the side of the connecting plate, and a positioning groove adapted to the limit block is opened inside the fixing block.

[0007] Preferably, the outer wall of the liner is bonded with a rubber sheet, and the outer diameter of the rubber sheet is compatible with the inner diameter of the feed hopper.

[0008] Preferably, the inner wall of the connecting frame is connected with a horizontal bar, and the horizontal bar is inserted inside the connecting spring and the connecting plate.

[0009] Preferably, the top of the liner is symmetrically connected with positioning rods, and the top of the feed hopper is provided with a limiting groove that matches the positioning rods.

[0010] Preferably, the sides of the connecting plate are connected to connecting rods, and the connecting rods are configured as arc-shaped structures.

[0011] Preferably, a fixing ring is fixedly welded to the inner wall of the bottom end of the feed hopper, and a reinforcing groove is provided inside the fixing ring. An insertion ring is inserted into the reinforcing groove, and the top of the insertion ring is fixedly connected to the bottom end of the liner.

[0012] Preferably, the connecting ring is movably sleeved on the outer wall of the feed hopper, and the inside of the connecting ring is connected to the feed hopper by bolts.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This device is equipped with a liner and a connecting plate. During use, the liner inserted inside the feed hopper can effectively prevent materials from directly colliding with the inner wall of the feed hopper, thus protecting the feed hopper. When the liner reaches the end of its service life, the staff can quickly replace it, which can effectively reduce the maintenance cost of this device and greatly improve work efficiency.

[0015] 2. This device is equipped with positioning rods and insertion rings. During use, the positioning rods can be used to position the liner plate, so that the positioning groove in the fixed block and the position of the limiting block can be quickly aligned. With the addition of insertion rings and fixed rings, the stability and tightness of the liner plate when it is inserted into the inner wall of the feed hopper can be improved. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a cement grinding mill feeding mechanism proposed in this utility model;

[0017] Figure 2 for Figure 1 A three-dimensional cross-sectional schematic diagram of the feed hopper and liner structure;

[0018] Figure 3 for Figure 1 A three-dimensional cross-sectional view of the fixing block and connecting plate structure in the diagram;

[0019] Figure 4 for Figure 1 A three-dimensional cross-sectional schematic diagram of the limiting block and positioning rod structure in the middle;

[0020] Figure 5 for Figure 1 A three-dimensional cross-sectional diagram of the rubber sheet and the inserted ring structure.

[0021] In the diagram: 1. Feed hopper; 2. Liner plate; 3. Fixing block; 4. Connecting frame; 5. Connecting spring; 6. Connecting plate; 7. Limiting block; 8. Crossbar; 9. Connecting ring; 10. Rubber plate; 11. Positioning rod; 12. Connecting rod; 13. Fixing ring; 14. Insertion ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-5 A cement grinding mill feeding mechanism includes a feeding hopper 1, with a liner 2 inserted inside the feeding hopper 1. A fixing block 3 is fixedly connected to the top of the liner 2. The connection method between the bottom of the feeding hopper 1 and the conveying pipe on the ball mill is existing technology and will not be described in detail here. Furthermore, the liner 2 can be made of high-strength, high-wear-resistant materials such as alloy steel or high-manganese steel, which can effectively improve its overall impact resistance. A connecting ring 9 is fitted onto the outer wall of the feeding hopper 1, and connecting frames 4 are symmetrically welded to the sides of the connecting ring 9. A connecting block 3 is inserted inside the connecting frame 4. The connecting plate 6 is connected to a connecting spring 5 on its side. The other end of the connecting spring 5 is connected to the outer wall of the connecting ring 9. The side of the connecting plate 6 is connected to a limiting block 7. The inside of the fixing block 3 is provided with a positioning groove that matches the limiting block 7. The upper part of the limiting block 7 is set with an inclined structure. Therefore, when the worker puts the liner 2 into the inside of the feed hopper 1, the fixing block 3 connected to the liner 2 can automatically push the limiting block 7 to move laterally. This can be completed without the worker pulling the connecting plate 6 laterally, thereby effectively improving the convenience of using this device.

[0024] Furthermore, refer to Figure 2 It can be seen that the outer wall of the liner 2 is bonded with a rubber plate 10, and the outer diameter of the rubber plate 10 is matched with the inner diameter of the feed hopper 1. When the material falls into the hopper and generates an impact force on the liner 2, the rubber plate 10 can play a buffering role, reducing the impact force on the feed hopper 1 and the liner 2, thereby effectively extending the service life of the feed hopper 1 and the liner 2.

[0025] Furthermore, refer to Figure 4 It can be seen that the inner wall of the connecting frame 4 is horizontally connected with a crossbar 8, and the crossbar 8 is inserted inside the connecting spring 5 and the connecting plate 6. During use, the bottom of the connecting plate 6 is provided with a slot that matches the crossbar 8, so as to meet the requirement that the connecting plate 6 slides stably along the outer surface of the crossbar 8. Since the crossbar 8 is inserted inside the connecting spring 5, it can prevent the connecting spring 5 from tilting, so as to effectively prevent the connecting spring 5 from being subjected to excessive local force, thereby ensuring the service life of the connecting spring 5.

[0026] Furthermore, refer to Figure 4 It can be seen that the top of the liner 2 is symmetrically connected with a positioning rod 11, and the top of the feed hopper 1 is provided with a limiting groove that matches the positioning rod 11. During use, the positioning rod 11 and the limiting groove cooperate with each other to limit the liner 2 inserted into the feed hopper 1, so that the positioning groove inside the fixing block 3 and the position of the limiting block 7 correspond to each other, without the need for the staff to adjust the angle of the liner 2 multiple times for installation.

[0027] Furthermore, refer to Figure 1 and Figure 3 It can be seen that the sides of the connecting plate 6 are respectively connected to the connecting rods 12, and the connecting rods 12 are set with an arc structure. During use, the arc structure of the connecting rods 12 makes it easy for the staff to quickly pull the two sets of connecting plates 6 to move laterally, thereby effectively improving the convenience of using this device.

[0028] Furthermore, refer to Figure 2 and Figure 5 It can be seen that a fixing ring 13 is fixedly welded to the inner wall of the bottom end of the feed hopper 1, and a reinforcing groove is provided inside the fixing ring 13. An insertion ring 14 is inserted into the reinforcing groove, and the top of the insertion ring 14 is fixedly connected to the bottom end of the liner 2. In use, the bottom of the liner 2 inserted into the feed hopper 1 can be reinforced by the reinforcing groove provided inside the insertion ring 14 and the fixing ring 13, so as to prevent the liner 2 from easily shifting, thereby effectively ensuring the reliability and stability of the liner 2 during use.

[0029] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the connecting ring 9 is movably sleeved on the outer wall of the feed hopper 1, and the inside of the connecting ring 9 is connected to the feed hopper 1 by bolts. In use, the connecting ring 9 and the bolts can be used to facilitate the workers to remove the connecting ring 9 from the outside of the feed hopper 1 to replace the connecting spring 5 that has lost its elasticity, thereby further reducing the maintenance cost of this device.

[0030] Working Principle: When using this utility model, the operator first aligns the flange connected to the bottom of the feed hopper 1 with the flange connected to the side conveying pipe of the ball mill. Then, the feed hopper 1 is installed and fixed with bolts. After the installation of the feed hopper 1 is completed, the operator can pour cement material into the feed hopper 1. The liner 2 set on the inner wall of the feed hopper 1 can prevent the material from directly colliding with the inner wall of the feed hopper 1, thus protecting the feed hopper 1. When the inner wall of the liner 2 needs to be replaced due to severe friction after long-term use, the operator can quickly pull the two sets of connecting rods 12 away from each other, so as to drive the two sets of connecting plates 6 connected to the connecting rods 12 to move respectively. At this time, the limiting block 7 connected to the side of the connecting plate 6 can be pulled out from the positioning groove opened inside the fixing block 3, thereby releasing the limitation on the fixing block 3 and the liner 2. Then, the operator can lift the liner 2, thereby pulling it out from the inside of the feed hopper 1 for replacement. The above is the complete working principle of this utility model.

[0031] In this utility model, the installation, connection or setting methods of all the components mentioned above are common mechanical methods, and the specific structure, model and coefficient index of all the components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.

[0032] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

[0033] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology only represent the orientation of the term in its conventional use or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are only used to distinguish names. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A cement mill feeding mechanism comprising a feeding hopper (1), characterized in that, The feed hopper (1) is fitted with a liner (2), and a fixing block (3) is fixedly connected to the top of the liner (2). The feed hopper (1) is fitted with a connecting ring (9), and a connecting frame (4) is symmetrically welded to the side of the connecting ring (9). A connecting plate (6) is inserted inside the connecting frame (4), and a connecting spring (5) is connected to the side of the connecting plate (6). The other end of the connecting spring (5) is connected to the outer wall of the connecting ring (9). A limiting block (7) is connected to the side of the connecting plate (6). A positioning groove that matches the limiting block (7) is opened inside the fixing block (3).

2. A cement mill feed mechanism according to claim 1, wherein, The outer wall of the liner (2) is glued with a rubber plate (10), and the outer diameter of the rubber plate (10) is compatible with the inner diameter of the feed hopper (1).

3. A cement mill feed mechanism according to claim 1 wherein, The inner wall of the connecting frame (4) is horizontally connected with a crossbar (8), and the crossbar (8) is inserted inside the connecting spring (5) and the connecting plate (6).

4. A cement mill feed mechanism according to claim 1 wherein, The top of the liner (2) is symmetrically connected with a positioning rod (11), and the top of the feed hopper (1) is provided with a limiting groove that matches the positioning rod (11).

5. A cement mill feed mechanism according to claim 1 wherein, The connecting plate (6) is connected to a connecting rod (12) on its side, and the connecting rod (12) is set as an arc-shaped structure.

6. A cement mill feed mechanism according to claim 1 wherein, The bottom inner wall of the feed hopper (1) is fixedly welded with a fixing ring (13), and a reinforcing groove is provided inside the fixing ring (13). An insertion ring (14) is inserted inside the reinforcing groove, and the top of the insertion ring (14) is fixedly connected to the bottom of the liner (2).

7. A cement mill feed mechanism according to claim 1 wherein, The connecting ring (9) is movably sleeved on the outer wall of the feed hopper (1), and the inside of the connecting ring (9) is connected to the feed hopper (1) by bolts.

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