A mill shell with an outward opening door

Abstract

The utility model relates to mill technical field, and disclose a mill barrel outer open door, including the barrel, the outer surface of barrel is provided with three manhole door lining plate, and both sides of three manhole door lining plate are connected with four manhole door lining plate, the outer surface rear end of barrel is close to one side of three manhole door lining plate and is provided with manhole door, and the bottom below of barrel is provided with one manhole door lining plate, one manhole door lining plate is connected with two manhole door lining plate, the front end of four manhole door lining plate is provided with five manhole door lining plate. The utility model discloses a manhole door outward opening mode, effectively avoid the operator in the closed space to be unable to freely operate the problem, not by internal space limit, and the door leaf opening is convenient, and personnel access and equipment maintenance are convenient, improve the convenience, and the manhole door sets up special sealing ring and locking mechanism, ensures that the door can effectively isolate the contact of outside and mill interior after closing, effectively prevents dust from leaking.

Description

Technical Field

[0001] This utility model relates to the field of mill technology, specifically to a mill cylinder with an externally opening door. Background Technology

[0002] Mills (such as ball mills and rod mills) are key equipment in industries such as mining, building materials, and chemicals, used for crushing and grinding materials. To facilitate equipment maintenance, repair, and cleaning, manholes are usually provided on the mill cylinder for personnel to enter and exit the mill cylinder or perform related operations.

[0003] Traditional manhole doors mostly adopt an inward-opening structure, meaning the door panel opens into the mill. This design requires personnel to enter the mill shell for operation, which is space-constrained, especially when there is a lot of residue inside the equipment or the internal environment is poor. Opening or closing the manhole door is time-consuming and labor-intensive. Secondly, if the inward-opening manhole door does not seal well during mill operation, it may lead to material leakage, dust spillage, and even safety accidents. At the same time, due to structural limitations, traditional inward-opening manhole doors have weak sealing performance, especially in high-pressure or strong vibration environments, where leakage is more likely to occur. Moreover, disassembly and assembly are complex, hindering quick inspection and routine maintenance, reducing equipment operating efficiency and causing inconvenience to users. Therefore, there is an urgent need for an outward-opening manhole door for the mill shell to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide an externally opening manhole for a mill cylinder, in order to solve the problems mentioned in the background art. When using the manhole, personnel need to enter the inside of the cylinder to operate, and the space is limited. Especially when there is a lot of residue inside the equipment or the internal environment is poor, opening or closing the manhole is time-consuming and laborious. Secondly, if the internally opening manhole is not properly sealed during the operation of the mill, it may lead to material leakage, dust overflow, or even safety accidents.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A mill cylinder with an externally opening door includes a cylinder body. A No. 3 manhole door liner is provided on the outer surface of the cylinder body, and both sides of the No. 3 manhole door liner are connected to a No. 4 manhole door liner. A manhole door is provided on the rear end of the outer surface of the cylinder body near the No. 3 manhole door liner. A No. 1 manhole door liner is provided below the bottom of the cylinder body. The No. 1 manhole door liner is connected to a No. 2 manhole door liner. A No. 5 manhole door liner is provided at the front end of the No. 4 manhole door liner.

[0007] Preferably, there are four sets of manhole doors, all of which are outward-opening and are constructed of high-strength steel or stainless steel.

[0008] Preferably, the No. 1 manhole door liner, the No. 2 manhole door liner, the No. 3 manhole door liner, the No. 4 manhole door liner, and the No. 5 manhole door liner are all connected to the cylinder body by liner connecting bolts.

[0009] Preferably, the manhole door is connected to the cylinder via bolts connected to the cylinder flange.

[0010] Preferably, the manhole door is disassembled using bolts and anti-top bolts connected to the cylindrical flange.

[0011] Preferably, the manhole door is equipped with a dedicated sealing ring and a locking mechanism.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model adopts an outward opening structure for the manhole door, which allows the door panel to open outward during operation without being restricted by the internal space. At the same time, the door panel is easy to open, facilitating personnel entry and exit and equipment maintenance, thus improving convenience and making operation easy.

[0014] 2. This utility model effectively prevents dust leakage by setting a special sealing ring and locking mechanism, and at the same time avoids leakage of residual materials inside when the manhole door is opened, which greatly improves operational safety; the overall structure is compact and suitable for various types of grinding equipment. Attached Figure Description

[0015] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a side view of the overall structure of this utility model;

[0018] Figure 3 This is a front view of the overall structure of this utility model;

[0019] Figure 4 This is a top view of the overall structure of this utility model.

[0020] In the diagram: 1. Cylinder body; 2. Manhole door; 3. Manhole door liner (No. 1); 4. Manhole door liner (No. 2); 5. Manhole door liner (No. 3); 6. Manhole door liner (No. 4); 7. Manhole door liner (No. 5); 8. Liner connecting bolts; 9. Cylinder body connecting bolt group; 10. Top bolts. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The accompanying drawings are for illustrative purposes only and represent schematic diagrams, not actual pictures, and should not be construed as limiting the present patent. In order to better illustrate the specific implementation of the present utility model, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product size.

[0022] Please see Figure 1-4 A mill cylinder with an externally opening door includes a cylinder 1. A No. 3 manhole door liner 5 is provided on the outer surface of the cylinder 1, and both sides of the No. 3 manhole door liner 5 are connected to the No. 4 manhole door liner 6. A manhole door 2 is provided on the rear end of the outer surface of the cylinder 1 near the No. 3 manhole door liner 5. A No. 1 manhole door liner 3 is provided at the bottom of the cylinder 1, and the No. 1 manhole door liner 3 is connected to the No. 2 manhole door liner 4. A No. 5 manhole door liner 7 is provided at the front end of the No. 4 manhole door liner 6.

[0023] There are four sets of manhole doors 2, and all manhole doors 2 are outward-opening. The manhole doors 2 are constructed of high-strength steel or stainless steel.

[0024] Among them, the No. 1 manhole door liner 3, the No. 2 manhole door liner 4, the No. 3 manhole door liner 5, the No. 4 manhole door liner 6, and the No. 5 manhole door liner 7 are all connected to the cylinder 1 by the liner connecting bolts 8.

[0025] The manhole door 2 is connected to the cylinder 1 via bolts 9 connected to the cylinder flange.

[0026] The manhole door 2 is disassembled using bolts 9 and anti-top bolts 10 connected to the cylinder flange.

[0027] The manhole door 2 is equipped with a special sealing ring and locking mechanism.

[0028] In this utility model, the mill cylinder 1 is the core load-bearing structure of the equipment. Multiple manhole doors 2 are strategically positioned on its exterior. Each manhole door 2 is secured and reinforced by manhole door liners of different sizes, forming a sealed and easily accessible manhole door structure. The manhole doors 2 adopt an outward-opening structure, facilitating access for maintenance personnel to the inside of the cylinder for upkeep. Typically, four sets are configured, distributed in key maintenance areas. The outward-opening structure avoids difficulties in opening due to limited internal space, improving operational convenience. Simultaneously, the third manhole door liner 5 is located on the front of the manhole door 2, and... It cooperates with the No. 4 manhole door liner 6 on both sides; the bottom of the cylinder 1 is provided with the No. 1 manhole door liner 3 and the No. 2 manhole door liner 4 to form a support, and the front end of the No. 4 manhole door liner 6 is installed with the No. 5 manhole door liner 7 to form a closed structure, ensuring the overall mechanical stability and sealing performance. Each manhole door liner is firmly connected to the outer shell of the cylinder 1 through the liner connecting bolts 8, which effectively enhances the structural strength around the door and prevents the cylinder from cracking or leaking due to stress concentration during operation. The manhole door 2 is reliably connected to the main body of the cylinder 1 through the bolts 9 connected to the cylinder flange, and can be quickly disassembled by unscrewing the bolts during maintenance. Meanwhile, the manhole door 2 can be assisted in its extension with the anti-jacking bolt 10, avoiding the problem of the manhole door getting stuck and difficult to open. To ensure the sealing and safety of the cylinder during operation, the manhole door 2 is equipped with a special sealing ring and locking mechanism, ensuring no leakage at the joints even in high-temperature, high-pressure, or dusty environments, thus improving the overall safety factor of the machine. The device has a reasonable structural design, and through the segmented support of the liner plate and the outward opening structure combined with the flange quick-release and auxiliary ejection mechanism, it can significantly improve the convenience and safety of the mill cylinder maintenance and repair. It is suitable for rotary mill equipment in industries such as mining, metallurgy, and cement, and has good application value. It can also accurately reflect the unevenness of the workpiece surface. Content not described in detail in this specification belongs to existing technology known to those skilled in the art.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mill cylinder with an externally opening door, comprising a cylinder (1), characterized in that: The outer surface of the cylinder (1) is provided with a No. 3 manhole door liner (5), and both sides of the No. 3 manhole door liner (5) are connected to the No. 4 manhole door liner (6). A manhole door (2) is provided on the rear end of the outer surface of the cylinder (1) near the No. 3 manhole door liner (5), and a No. 1 manhole door liner (3) is provided below the bottom of the cylinder (1). The No. 1 manhole door liner (3) is connected to the No. 2 manhole door liner (4), and a No. 5 manhole door liner (7) is provided at the front end of the No. 4 manhole door liner (6).

2. The externally opening door of a mill cylinder according to claim 1, characterized in that: The number of manhole doors (2) is four, and all manhole doors (2) are outward-opening. The manhole doors (2) are constructed of high-strength steel or stainless steel.

3. The externally opening door of a mill cylinder according to claim 1, characterized in that: The No. 1 manhole door liner (3), No. 2 manhole door liner (4), No. 3 manhole door liner (5), No. 4 manhole door liner (6), and No. 5 manhole door liner (7) are all connected to the cylinder (1) by liner connecting bolts (8).

4. The externally opening door of a mill cylinder according to claim 1, characterized in that: The manhole door (2) is connected to the cylinder (1) by bolts (9) connected to the cylinder flange.

5. The externally opening door of a mill cylinder according to claim 1, characterized in that: The manhole door (2) is disassembled by bolts (9) and anti-top bolts (10) connected to the cylinder flange.

6. The externally opening door of a mill cylinder according to claim 1, characterized in that: The manhole door (2) is equipped with a special sealing ring and a locking mechanism.

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