A cylindrical screen cover for cleaning waste

Abstract

This utility model belongs to the technical field of material screening equipment and discloses a cylindrical screen cover for cleaning waste materials. It includes a cylindrical screen cover body, an observation window, an opening and closing mechanism, a sealing structure, an observation door, and a hinge. The bottom of the cylindrical screen cover body has a slag discharge channel, and a rotatable observation window is installed on its side wall. The observation window is connected to the body via a hinge, and the opening and closing mechanism enables convenient opening and closing. A sealing structure at the contact edge ensures a tight seal. The observation door is detachably fixed to the body with bolts. This utility model allows for observation and rapid cleaning of blockages through the observation window without stopping the machine, reducing the risk of material splashing, improving production continuity, enhancing equipment wear resistance and ease of operation, and reducing maintenance costs. It is suitable for waste screening and processing in equipment such as wet mills.

Description

Technical Field

[0001] The utility model belongs to the technical field of mill discharging, and particularly relates to a cylindrical screen cover capable of cleaning waste materials. Background Technique

[0002] In material screening equipment (such as a screening device supporting a wet mill), a cylindrical screen cover is used to intercept and discharge waste materials (such as coarse particles, impurities, etc.) generated during the screening process. The traditional cylindrical screen cover has the following problems: 1. Lack of a convenient observation structure. It is necessary to stop the machine and open a large maintenance door to check whether the slag discharge channel is blocked with materials, resulting in production interruption and low efficiency; 2. The cleaning of blocked materials depends on the overall disassembly of the maintenance door, with cumbersome operation and a risk of material splashing; 3. The inner wall of the slag discharge channel and the observation components are easily worn by the impact of waste materials, with a short equipment maintenance cycle and high cost; 4. Insufficient sealing performance, prone to material leakage, polluting the operating environment and affecting safety. Content of the Utility Model

[0003] The purpose of the utility model is to solve the problems put forward in the background technique, and provides a cylindrical screen cover capable of cleaning waste materials.

[0004] The specific technical solution is as follows: A cylindrical screen cover capable of cleaning waste materials, comprising: A cylindrical screen cover body, which has a slag discharge channel at the bottom, and an installation opening is provided on the side wall of the slag discharge channel; An observation window, rotatably installed at the installation opening, for observing whether the slag discharge channel is blocked with materials; An opening and closing mechanism, jointly arranged on the outer side surface of the observation window and the outer side wall of the slag discharge channel of the cylindrical screen cover body, for controlling the opening and closing of the observation window; A sealing structure, arranged at the contact edge between the observation window and the installation opening, for sealing in the closed state; An observation door, detachably fixed to the cylindrical screen cover body by bolts; A hinge, connecting the observation window and the side wall of the cylindrical screen cover body, to realize the rotary opening and closing of the observation window.

[0005] As a preferred scheme of the utility model, the opening and closing mechanism comprises at least four lock rings and a T-shaped handle. One of the lock rings is fixedly connected to the outer side wall of the slag discharge channel at the bottom of the cylindrical screen cover body, and this lock ring is arranged far away from the hinge. The rest of the lock rings are all fixedly connected to the outer wall of the observation window. The T-shaped handle movably passes through the lock rings on the outer wall of the observation window and is limited between the lock rings on the outer wall of the observation window. The end of the T-shaped handle far away from the hinge can be inserted into the lock ring on the outer side wall of the slag discharge channel.

[0006] As a preferred embodiment of this utility model, both the locking ring and the T-shaped handle are made of stainless steel.

[0007] As a preferred embodiment of this utility model, the size of the observation window covers the area of ​​the slag discharge channel that is prone to clogging, and its position is adapted to the standing height of the operator.

[0008] As a preferred embodiment of this utility model, the sealing structure is a rubber sealing strip, which is embedded in the closed edge of the observation window.

[0009] As a preferred embodiment of this utility model, the cylindrical screen cover body is formed by welding carbon steel plate.

[0010] As a preferred embodiment of this utility model, the observation window is composed of an inner wear-resistant steel plate and an outer transparent polycarbonate plate, and the wear-resistant steel plate is provided with several round holes.

[0011] As a preferred embodiment of this utility model, the inner wall of the slag discharge channel of the cylindrical screen cover body is provided with a wear-resistant ceramic liner, and the wear-resistant ceramic liner is fixedly connected to the inner wall of the slag discharge channel by countersunk bolts.

[0012] This utility model has the following beneficial effects: This utility model achieves the following technical effects by setting an easily operable observation window and supporting structure in the slag discharge section of the cylindrical screen cover body: 1. Significantly improved security The observation window is easily opened and closed via hinges and opening and closing mechanisms (locking ring, T-shaped handle), allowing operation without opening a large observation door, thus reducing the risk of material splashing and injury during equipment operation; The sealing structure (rubber sealing strip) is embedded in the edge of the observation window. Combined with the locking action of the T-shaped handle and the locking ring, it effectively prevents material leakage and ensures a clean and safe operating environment. The observation window is positioned at a height that is suitable for the operator's standing height, reducing the difficulty of observation and clearing blockages and minimizing the occurrence of accidents.

[0013] 2. Production efficiency has been greatly improved. The observation window covers the area of ​​the slag discharge channel that is prone to blockage. The outer transparent polycarbonate plate allows for real-time online observation of the blockage situation, enabling judgment without stopping the machine and reducing downtime for inspection. Once a blockage is detected, the observation window can be quickly opened using the T-handle to clear the blockage directly, preventing equipment overload or shutdown caused by material accumulation and improving production continuity.

[0014] 3. Optimization of equipment durability and economy The cylindrical screen cover body is welded from carbon steel plate, which has high strength, good impact resistance, and is suitable for complex working conditions; The inner layer of the observation window is made of wear-resistant steel plate to resist material erosion, while the outer layer of polycarbonate plate ensures clear observation and extends the service life of the observation components. The wear-resistant ceramic lining plate on the inner wall of the slag discharge channel is fixed by countersunk bolts, which has strong wear resistance and avoids wear on the bolt heads, reducing the maintenance frequency of the main body; The locking ring and T-shaped handle are made of stainless steel, which is corrosion-resistant and wear-resistant, reducing the replacement cost of the opening and closing mechanism.

[0015] 4. Enhanced ease of use The viewing window opens and closes via a hinge, and locking / unlocking can be achieved simply by using the T-shaped handle and locking ring, without the need for professional tools; The observation door is detachable and fixed with bolts, accommodating both daily minor cleaning and regular major maintenance needs, and is flexible in operation. Attached Figure Description

[0016] Figure 1 A front view of a cylindrical screen cover capable of cleaning waste provided in an embodiment of this utility model; Figure 2 Left view of a cylindrical screen cover for cleaning waste provided in an embodiment of this utility model; Figure 3 for Figure 1 Enlarged structural diagram at point A; Figure 4 for Figure 2 Enlarged structural diagram at point B; Figure 5 This is a schematic diagram of the exploded structure of the observation window.

[0017] In the attached image: 1. Cylindrical screen cover body; 2. Observation window; 201. Outer transparent polycarbonate plate; 202. Inner wear-resistant steel plate; 3. Observation door; 4. Bolt; 5. Hinge; 6. Handle; 7. Locking ring. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this application. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0020] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0021] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Example The cylindrical screen cover for cleaning waste materials provided in this embodiment, such as Figures 1-5 As shown, it includes: a cylindrical screen cover body 1, an observation window 2, an opening and closing mechanism, a sealing structure, an observation door 3, and a hinge 5, wherein: The bottom of the cylindrical screen cover body 1 has a slag discharge channel, and the side wall of the slag discharge channel is provided with an installation port; The observation window 2 is rotatably installed at the installation port to observe whether the slag discharge channel is blocked; The opening and closing mechanism is located on the outer side of the observation window 2 and the outer wall of the slag discharge channel of the cylindrical screen cover body 1, and is used to control the opening and closing of the observation window 2. A sealing structure is provided at the contact edge between the observation window 2 and the mounting port for sealing when closed; The observation door 3 is detachably fixed to the cylindrical screen cover body 1 by bolts 4; The hinge 5 connects the observation window 2 to the side wall of the cylindrical screen body 1, enabling the observation window 2 to rotate and open / close.

[0023] The cylindrical screen cover body 1 provides basic support for the overall structure. A rotatable observation window 2 allows for observation of material blockage in the discharge channel without opening the large observation door 3, reducing the risk of material splashing during operation and improving operational safety. The observation window 2, combined with the opening and closing mechanism and sealing structure, ensures convenient observation while maintaining airtightness in the closed state, effectively preventing material leakage and further ensuring a safe operating environment. The observation window 2 allows for real-time monitoring of the discharge status without stopping the machine, enabling timely handling of blockages and reducing downtime, thus improving production continuity. The observation window 2 is opened and closed by a hinge 5, and the opening and closing mechanism is simple to operate. The observation door 3 is detachably fixed by bolts 4, accommodating both daily observation and periodic maintenance needs, enhancing operational convenience. Timely handling of blockages reduces the residence time of material in the discharge channel, decreasing corrosion and abnormal wear of the cylindrical screen cover body 1 and related components, extending equipment lifespan, and reducing maintenance costs.

[0024] Specifically, in this embodiment, the opening and closing mechanism includes at least four locking rings 7 and a T-shaped handle 6. One of the locking rings 7 is fixedly connected to the outer wall of the slag discharge channel at the bottom of the cylindrical screen cover body 1, and the locking ring 7 is located away from the hinge 5. The remaining locking rings 7 are all fixedly connected to the outer wall of the observation window 2. The T-shaped handle 6 moves through the locking rings 7 on the outer wall of the observation window 2 and is limited between the locking rings 7 on the outer wall of the observation window 2. The end of the T-shaped handle 6 away from the hinge 5 can be inserted into the locking ring 7 on the outer wall of the slag discharge channel.

[0025] The opening and closing mechanism consists of a locking ring 7 and a T-shaped handle 6. The structure is simple, and the locking and opening of the observation window 2 can be quickly realized through the cooperation of the T-shaped handle 6 and the locking ring 7. The operation is convenient and efficient. The setting of at least four locking rings 7 (one of which is fixed to the cylindrical screen cover body 1, and the rest are fixed to the observation window 2) can form a stable limit on the T-shaped handle 6, ensuring the stability of the observation window 2 when closed and reducing the possibility of the observation window 2 loosening due to vibration during equipment operation. The end of the T-shaped handle 6 away from the hinge 5 is inserted into the corresponding locking ring 7, which can form an effective lock when the observation window 2 is closed. Combined with the sealing structure, this further improves the sealing performance of the observation window 2 and prevents material leakage.

[0026] Specifically, in this embodiment, in order to ensure the service life of the locking ring 7 and the T-shaped handle 6, both the locking ring 7 and the T-shaped handle 6 are made of stainless steel.

[0027] Specifically, in this embodiment, the size of the observation window 2 covers the area of ​​the slag discharge channel that is prone to clogging, and its position is adapted to the standing height of the operator. The size of the observation window 2 covers the area of ​​the slag discharge port that is prone to clogging, ensuring that the operator can fully observe the clogging situation; its position is adapted to the standing height of the operator, which reduces the difficulty of observation and operation, and improves the accuracy of observation and the convenience of unclogging operation.

[0028] Specifically, in this embodiment, the sealing structure is a rubber sealing strip, which is embedded in the closed edge of the observation window 2. By using a rubber sealing strip as the sealing structure and embedding it in the closed edge of the observation window 2, the elastic properties of rubber are utilized to enhance the sealing performance between the observation window 2 and the contact edge of the mounting opening, effectively preventing material leakage from gaps and further ensuring the cleanliness of the equipment operating environment.

[0029] Specifically, in this embodiment, the cylindrical screen cover body 1 is welded from carbon steel plate. The cylindrical screen cover body 1 is made of carbon steel plate, which has high strength and good welding performance, ensuring the structural stability and durability of the cylindrical screen cover body 1. This allows it to adapt to material impacts and complex environments during wet mill operation, extending the overall service life of the equipment.

[0030] Specifically, in this embodiment, the observation window 2 is composed of an inner wear-resistant steel plate 202 and an outer transparent polycarbonate plate 201. The inner wear-resistant steel plate 202 has circular holes facing the slag discharge port. The outer transparent polycarbonate plate 201 of the observation window 2 allows for direct observation during equipment operation, reducing the frequency of opening the observation window 2 and lowering operating costs. The inner wear-resistant steel plate 202 resists material erosion, extending the service life of the observation window 2, and the circular holes prevent the inner wear-resistant steel plate 202 from obstructing the view.

[0031] Specifically, in this embodiment, the inner wall of the slag discharge channel of the cylindrical screen cover body 1 is provided with a wear-resistant ceramic liner, which is fixedly connected to the inner wall of the slag discharge channel by countersunk bolts. The wear-resistant ceramic liner has extremely high wear resistance, effectively resisting the impact and friction of waste during the slag discharge process, reducing the wear rate of the slag discharge channel; the countersunk bolt fixing method avoids the bolt head protruding from the liner surface and being worn by waste, ensuring that the liner is firmly installed, significantly extending the maintenance cycle and overall service life of the cylindrical screen cover body 1, and reducing equipment operating costs.

[0032] Working principle: 1. Screening and slag discharge process: After the material enters the cylindrical screen body 1, it is screened. Qualified material is discharged through the screen, while waste (coarse particles and impurities) falls into the bottom slag discharge channel and is discharged naturally along the channel.

[0033] 2. Material blockage monitoring mechanism: Operators can observe the material flow status in the slag discharge channel in real time through the outer transparent polycarbonate plate of observation window 2. The round holes of the inner wear-resistant steel plate ensure that the line of sight is not obstructed, and can quickly determine whether material blockage has occurred.

[0034] 3. Sealing and locking principle: When the observation window 2 is closed, the rubber sealing strip at the edge is deformed by pressure, filling the gap and achieving a seal; the T-shaped handle 6 passes through the locking ring 7 on the observation window 2 and is inserted into the locking ring 7 on the cylindrical screen cover body 1, and the observation window 2 is tightly pressed into the installation opening through the lever action to prevent vibration from causing loosening.

[0035] 4. Wear-resistant protection mechanism: The wear-resistant ceramic lining plate on the inner wall of the slag discharge channel is in direct contact with the flowing waste material and withstands impact and friction; the inner layer of the observation window 2 is made of wear-resistant steel plate to resist material splashing and scouring, and protects the outer transparent plate from damage.

[0036] How to use: 1. Routine observation: When the equipment is running, the operator stands in front of the observation window 2 and observes the material flow in the slag discharge channel through the outer transparent polycarbonate plate to determine whether there is a blockage.

[0037] 2. Material blockage removal: If material blockage is found, hold the T-shaped handle 6 and rotate it upwards to disengage its end from the locking ring 7 on the cylindrical screen body 1. Open the observation window 2 outwards along the hinge 5 and use a tool (such as a rod-shaped cleaning tool) to remove the blockage through the installation port. After cleaning, close the observation window 2, insert the end of the T-shaped handle 6 into the locking ring 7 on the cylindrical screen body 1 and press it down to complete the locking.

[0038] 3. Regular maintenance: When a comprehensive overhaul of the screen cover or slag discharge channel is required, remove the bolts 4 that fix the observation door 3, remove the observation door 3 for maintenance; after the overhaul is completed, reinstall the observation door 3 and tighten the bolts 4.

[0039] 4. Maintenance: Regularly check the sealing performance of the rubber sealing strip and replace it in time if it is aged; check the connection strength of the locking ring 7, T-shaped handle 6 and hinge 5 to ensure flexible opening and closing; observe the wear of the wear-resistant ceramic liner and the inner steel plate of the observation window 2, and replace them if necessary to ensure equipment performance.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cylindrical screen cover for cleaning waste materials, characterized in that, include: The cylindrical screen cover body (1) has a slag discharge channel at its bottom, and the side wall of the slag discharge channel is provided with an installation port; An observation window (2) is rotatably installed at the installation port for observing whether the slag discharge channel is blocked. The opening and closing mechanism is located on the outer side of the observation window (2) and the outer wall of the slag discharge channel of the cylindrical screen cover body (1), and is used to control the opening and closing of the observation window (2). A sealing structure is provided at the contact edge between the observation window (2) and the mounting port for sealing in the closed state; The observation door (3) is detachably fixed to the cylindrical screen cover body (1) by bolts (4); The hinge (5) connects the observation window (2) to the side wall of the cylindrical screen body (1) to realize the rotation opening and closing of the observation window (2).

2. The cylindrical screen cover for cleaning waste materials according to claim 1, characterized in that: The opening and closing mechanism includes at least four locking rings (7) and a T-shaped handle (6). One of the locking rings (7) is fixedly connected to the outer wall of the slag discharge channel at the bottom of the cylindrical screen body (1), and the locking ring (7) is located away from the hinge (5). The remaining locking rings (7) are fixedly connected to the outer wall of the observation window (2). The T-shaped handle (6) moves through the locking rings (7) on the outer wall of the observation window (2) and is limited between the locking rings (7) on the outer wall of the observation window (2). The end of the T-shaped handle (6) away from the hinge (5) can be inserted into the locking ring (7) on the outer wall of the slag discharge channel.

3. The cylindrical screen cover for cleaning waste materials according to claim 2, characterized in that: Both the locking ring (7) and the T-shaped handle (6) are made of stainless steel.

4. The cylindrical screen cover for cleaning waste materials according to claim 1, characterized in that: The size of the observation window (2) covers the area of ​​the slag discharge channel that is prone to blockage, and its position is adapted to the standing height of the operator.

5. The cylindrical screen cover for cleaning waste materials according to claim 1, characterized in that: The sealing structure is a rubber sealing strip, which is embedded in the closed edge of the observation window (2).

6. The cylindrical screen cover for cleaning waste materials according to claim 1, characterized in that: The cylindrical screen cover body (1) is formed by welding carbon steel plate.

7. The cylindrical screen cover for cleaning waste materials according to any one of claims 1-6, characterized in that: The observation window (2) is composed of an inner wear-resistant steel plate (202) and an outer transparent polycarbonate plate (201), and the inner wear-resistant steel plate (202) has several round holes.

8. The cylindrical screen cover for cleaning waste materials according to claim 1, characterized in that: The inner wall of the slag discharge channel of the cylindrical screen cover body (1) is provided with a wear-resistant ceramic liner plate, which is fixedly connected to the inner wall of the slag discharge channel by countersunk bolts (12).

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