A device for replacing a wear-resistant lining of a pulp heavy impurities delivery channel

Abstract

The utility model discloses a kind of paper pulp heavy impurities conveying groove wear-resistant lining replacement device, it is related to paper pulp processing technical field, including paper pulp deslagging device, the side fixed mounting of paper pulp deslagging device has feed pipe, the top end of feed pipe is recessed, the bottom surface of feed pipe inner wall is inclined, the inside of feed pipe is provided with lining plate assembly, lining plate assembly includes cover plate, the outer surface of cover plate is slidably connected with the inner wall of feed pipe, the bottom end fixed mounting of cover plate has four fixed rods, the bottom end fixed connection of four fixed rods has flow passage lining bottom plate, by the pull-out type overall design of flow passage lining bottom plate and cover plate, to cooperate cleaning assembly to facilitate flow passage lining bottom plate cleaning, to solve the cleaning mode of traditional flow passage lining bottom plate is very inconvenient problem, to enable flow passage lining bottom plate to be cleaned quickly, to make the replacement device better use.

Description

Technical Field

[0001] This utility model relates to the field of pulp processing technology, and in particular to a wear-resistant liner replacement device for a pulp heavy impurity conveying trough. Background Technology

[0002] In the pulp production process, the pulp desander is a key piece of equipment for separating heavy impurities. Its feed pipe, as the core channel for pulp transportation, must withstand the continuous scouring and friction of pulp, sand, metal scraps and other heavy impurities for a long time. In order to protect the pipe body, the inner wall of the feed pipe is usually equipped with a flow channel lining bottom plate to resist wear and extend the service life of the equipment.

[0003] Traditional feed pipes are mostly directly connected to the slurry conveying equipment pipeline. This means that when disassembling and cleaning the flow channel lining plate, the feed pipe must first be disconnected from the slurry conveying equipment before the flow channel lining bottom plate can be cleaned. However, the traditional flow channel lining bottom plate does not have a cleaning component installed on its surface, which makes the cleaning of the disassembled flow channel lining bottom plate very inconvenient. As a result, the disassembled flow channel lining bottom plate cannot be cleaned quickly, thus requiring a replacement device for quickly replacing the flow channel lining plate. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a wear-resistant lining replacement device for a pulp heavy impurity conveying trough. This device can solve the problem that the traditional flow channel lining bottom plate does not have a cleaning component installed on its surface, which makes the cleaning of the flow channel lining bottom plate after disassembly very inconvenient, and thus the flow channel lining bottom plate cannot be cleaned quickly after disassembly.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant liner replacement device for a pulp heavy impurity conveying trough, comprising a pulp desander, wherein a feed pipe is fixedly installed on one side of the pulp desander, the top end of the feed pipe is grooved, the bottom surface of the inner wall of the feed pipe is inclined, an inner liner assembly is provided inside the feed pipe, the inner liner assembly includes a cover plate, the outer surface of the cover plate is slidably connected to the inner wall of the feed pipe, four fixing rods are fixedly installed at the bottom end of the cover plate, and a flow channel liner bottom plate is fixedly connected to the bottom end of the four fixing rods, the flow channel liner bottom plate is in contact with the bottom surface of the inner wall of the feed pipe, the outer surface of the flow channel liner bottom plate is slidably connected to the inner wall of the feed pipe, a handle is fixedly installed at the top end of the cover plate, the handle is C-shaped, and a cleaning structure is slidably connected to the top end of the flow channel liner bottom plate.

[0006] Preferably, the cleaning structure is a cleaning scraper, and one side of the cleaning scraper is inclined.

[0007] Preferably, the cleaning structure is a blade scraper, with one side of the blade scraper being triangular.

[0008] Preferably, two sliding rods are fixedly connected between the four fixed rods, and the outer surfaces of the two sliding rods are provided with sliders. The opposite ends of the two sliders are fixedly connected to the two sides of the cleaning scraper.

[0009] Preferably, both sliders have circular grooves inside, and the inner walls of the two circular grooves are slidably connected to the outer surfaces of the two sliders, respectively.

[0010] Preferably, a second threaded groove is provided on one side of the slider on the left side. The interior of the second threaded groove on the left side is connected to the interior of the corresponding circular groove. A second locking bolt is threadedly connected to the interior of the second threaded groove, and one end of the second locking bolt is in contact with the outer surface of the slider.

[0011] Preferably, the inner wall of the feed pipe is provided with sealing grooves on both sides, and the interior of each of the four sealing grooves is provided with a first threaded groove.

[0012] Preferably, two sealing plates are fixedly connected to both sides of the cover plate, the outer surfaces of the four sealing plates are slidably connected to the inner walls of the corresponding sealing grooves, and the interior of each of the four sealing plates is provided with a first bolt, the bottom end of the four first bolts being threadedly connected to the inner wall of the corresponding first threaded groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. The wear-resistant lining replacement device for the pulp heavy impurity conveying trough features a pull-out integrated design for the flow channel lining bottom plate and cover plate, which, together with the cleaning components, facilitates the cleaning of the flow channel lining bottom plate. This solves the problem of the inconvenience of traditional flow channel lining bottom plate cleaning methods, enabling the flow channel lining bottom plate to be cleaned quickly and thus improving the usability of the replacement device. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural diagram of a wear-resistant liner replacement device for a pulp heavy impurity conveying trough according to the present invention. Figure 2 This is a schematic diagram of the flow channel lining bottom plate structure of this utility model; Figure 3 This is a schematic diagram of the cleaning scraper structure of this utility model; Figure 4 This is a schematic diagram of the slider structure of this utility model.

[0015] Figure 5 This is a schematic diagram of the blade scraper structure of this utility model.

[0016] Reference numerals: 1. Pulp remover; 2. Feed pipe; 3. Cover plate; 4. Handle; 5. Flow channel lining bottom plate; 6. Fixing rod; 7. Cleaning scraper; 8. Sliding rod; 9. Sealing groove; 10. First threaded groove; 11. Sealing plate; 12. First bolt; 13. Sliding block; 14. Second threaded groove; 15. Second locking bolt; 16. Circular sliding groove; 17. Blade scraper. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0018] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying 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, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0020] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0021] Please see Figure 1-5 This utility model provides a technical solution: Pulp desander 1: It is a key piece of equipment for separating heavy impurities in pulp. It is fixedly installed on one side with the feed pipe 2, providing basic equipment support for pulp processing.

[0022] Feed pipe 2: As the core channel for pulp conveying, it has a groove at the top and a sloping bottom surface on the inner wall. It is used to install the inner lining components and convey pulp and heavy impurities.

[0023] Cover plate 3: Its outer surface is slidably connected to the inner wall of the feed pipe 2, and its bottom end is connected to the flow channel lining bottom plate 5 through the fixing rod 6. It plays the role of bearing and driving the movement of the inner lining assembly, and at the same time works with the sealing plate 11 to achieve sealing.

[0024] Handle 4: C-shaped, fixedly installed on the top of cover plate 3, making it convenient for operators to lift cover plate 3, thereby driving the disassembly and assembly of components such as flow channel lining bottom plate 5.

[0025] The flow channel lining bottom plate 5 is attached to the bottom surface of the inner wall of the feed pipe 2, and its outer surface is slidably connected to its inner wall, directly contacting the pulp and heavy impurities, and using its wear-resistant properties to protect the body of the feed pipe 2.

[0026] Fixed rods 6: There are four in total. The top end is fixedly connected to the cover plate 3, and the bottom end is fixedly connected to the flow channel lining bottom plate 5. They serve to connect the two and fix their relative positions so that they can move synchronously.

[0027] Cleaning scraper 7: Used to clean impurities from the surface of the flow channel lining bottom plate 5. Blade scraper 17: Used to clean hard and sticky impurities on the surface of the flow channel lining bottom plate 5. The triangular blade on one side of the blade scraper 17 can break up the hard and sticky impurities, thereby achieving the cleaning effect of cleaning the flow channel lining bottom plate.

[0028] Slide bar 8: There are two in total, which are fixedly connected between the four fixed bars 6 to provide a sliding track for the slider 13 and assist the cleaning scraper 7 to move stably.

[0029] Sealing groove 9: It is opened on both sides of the inner wall of the feed pipe 2 to accommodate the sealing plate 11. The sealing plate 11 enhances the sealing performance of the device and prevents pulp leakage.

[0030] First threaded groove 10: It is formed inside the sealing groove 9 and is threadedly connected to the first bolt 12. The sealing plate 11 and the sealing groove 9 are fixed and sealed by tightening the bolt.

[0031] Sealing plate 11: Fixed on both sides of cover plate 3, its outer surface is slidably connected to the inner wall of sealing groove 9, embedded in sealing groove 9 and cooperates with first bolt 12 to enhance the sealing performance of the device.

[0032] First bolt 12: Located inside the sealing plate 11, with its bottom end threadedly connected to the first threaded groove 10, used to lock the sealing plate 11 in the sealing groove 9 to ensure a sealing effect.

[0033] Slider 13: It is fitted on the outer surface of the slide bar 8, and its opposite end is fixedly connected to both sides of the cleaning scraper 7, so as to drive the cleaning scraper 7 to slide along the slide bar 8 to achieve the cleaning function.

[0034] The second threaded groove 14 is located on one side of the left slider 13 and communicates with the circular groove 16, providing a threaded connection position for the second locking bolt 15.

[0035] The second locking bolt 15 is threaded into the second threaded groove 14, with one end in contact with the outer surface of the slide bar 8, and is used to lock the slider 13 and fix the position of the cleaning scraper 7.

[0036] Circular groove 16: It is formed inside the slider 13, and its inner wall is slidably connected to the outer surface of the slide rod 8, providing a channel for the slider 13 to slide along the slide rod 8 and ensuring smooth sliding.

[0037] Furthermore, during normal operation of the device, the pulp is conveyed to the pulp desander 1 through the feed pipe 2. The flow channel lining bottom plate 5 on the inner wall of the feed pipe 2 is in direct contact with the pulp and heavy impurities, and its wear-resistant properties protect the body of the feed pipe 2. The flow channel lining bottom plate 5 is connected to the cover plate 3 through the fixing rod 6. The sealing plates 11 on both sides of the cover plate 3 are embedded in the sealing grooves 9 on the inner wall of the feed pipe 2. With the locking of the first bolt 12 and the first threaded groove 10, a tight sealing structure is formed to prevent pulp leakage and ensure the stability of the flow channel lining bottom plate 5 during operation, avoiding displacement caused by pulp impact.

[0038] Furthermore, when the flow channel lining bottom plate 5 needs to be replaced or cleaned due to long-term wear, the operator can first loosen the first bolt 12 on the sealing plate 11 to separate the sealing plate 11 from the sealing groove 9, and then pull it upwards through the C-shaped handle 4 at the top of the cover plate 3 to drive the fixing rod 6 and the flow channel lining bottom plate 5 to be taken out as a whole from the feed pipe 2, so as to realize the quick disassembly of the lining assembly. This process does not require complex disassembly of the feed pipe 2 body, which greatly shortens the replacement time.

[0039] Furthermore, when the wear of the pulled-out flow channel lining bottom plate is not severe, its surface can be cleaned to make full use of the flow channel lining bottom plate 5. Then, the second locking bolt 15 is rotated, causing the left slider 13 to lose its fixing force with the left sliding rod 8. Then, the cleaning scraper 7 can be pushed to slide along the surface of the flow channel lining bottom plate 5, which facilitates the cleaning of impurities attached to the surface of the flow channel lining bottom plate 5. After the flow channel lining bottom plate 5 is cleaned, it is then inserted back into the feed pipe 2 as a whole, and then locked and fixed again using the second locking bolt 15. Furthermore, the pull-out integrated design of the flow channel lining bottom plate 5 and the cover plate 3, combined with the cleaning components, facilitates the cleaning of the flow channel lining bottom plate 5, thereby solving the problem that the traditional method of cleaning the flow channel lining bottom plate is very inconvenient. This allows the flow channel lining bottom plate 5 to be cleaned quickly, thus making the replacement device more usable.

[0040] Example 1: When the surface of the flow channel lining base plate 5 becomes hardened with scale or solidified impurities after prolonged use, which are difficult to clean, the cleaning scraper 7 is replaced with a blade scraper 17. Then, the blade scraper 17 is pushed, and the triangular blade of the blade scraper 17 is aligned with the area where the impurities are attached. Because the blade is sharp, only a small pushing force is needed to quickly cut through the surface of the hard impurities using the cutting action of the blade, thus facilitating the cleaning of the surface of the flow channel lining base plate 5.

[0041] Example 2: If the pulp contains a high content of heavy impurities (such as metal fragments), after cleaning, the cleaning scraper 7 is locked at the feed end of the flow channel lining bottom plate 5 (near the inlet of the feed pipe 2). At this time, the inclined surface of the cleaning scraper 7 can form a preliminary guide for the incoming pulp, while reducing the impact on the feed end of the flow channel lining bottom plate 5, thereby preventing large-area wear at the feed end of the flow channel lining bottom plate 5, thus facilitating the transport of pulp.

[0042] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A wear-resistant liner replacement device for a pulp heavy impurity conveying trough, comprising a pulp desander (1), characterized in that: The pulp deslagging device (1) has a feed pipe (2) fixedly installed on one side. The top of the feed pipe (2) is grooved, and the bottom surface of the inner wall of the feed pipe (2) is inclined. The feed pipe (2) is equipped with an inner liner assembly, which includes a cover plate (3). The outer surface of the cover plate (3) is slidably connected to the inner wall of the feed pipe (2). Four fixing rods (6) are fixedly installed at the bottom of the cover plate (3). The bottom of the four fixing rods (6) is fixedly connected to a flow channel liner bottom plate (5). The flow channel liner bottom plate (5) is in contact with the bottom surface of the inner wall of the feed pipe (2). The outer surface of the flow channel liner bottom plate (5) is slidably connected to the inner wall of the feed pipe (2). A handle (4) is fixedly installed at the top of the cover plate (3). The handle (4) is C-shaped. A cleaning structure is slidably connected at the top of the flow channel liner bottom plate (5).

2. The wear-resistant liner replacement device for a pulp heavy impurity conveying trough according to claim 1, characterized in that: The cleaning structure is a cleaning scraper (7), one side of which is inclined.

3. The wear-resistant liner replacement device for a pulp heavy impurity conveying trough according to claim 1, characterized in that: The cleaning structure is a blade scraper (17), one side of which is triangular blade-shaped.

4. The wear-resistant liner replacement device for a pulp heavy impurity conveying trough according to claim 1, characterized in that: Two slide rods (8) are fixedly connected between the four fixed rods (6). The outer surfaces of the two slide rods (8) are provided with sliders (13). The opposite ends of the two sliders (13) are fixedly connected to the two sides of the cleaning scraper (7).

5. The wear-resistant liner replacement device for a pulp heavy impurity conveying trough according to claim 4, characterized in that: Both sliders (13) have circular grooves (16) inside, and the inner walls of the two circular grooves (16) are slidably connected to the outer surfaces of the two sliders (8).

6. The wear-resistant liner replacement device for a pulp heavy impurity conveying trough according to claim 4, characterized in that: A second threaded groove (14) is provided on one side of the slider (13) on the left side. The interior of the second threaded groove (14) on the left side is connected to the interior of the corresponding circular groove (16). A second locking bolt (15) is threadedly connected inside the second threaded groove (14). One end of the second locking bolt (15) is in contact with the outer surface of the slide rod (8).

7. The wear-resistant liner replacement device for a pulp heavy impurity conveying trough according to claim 1, characterized in that: The inner wall of the feed pipe (2) is provided with sealing grooves (9) on both sides, and the four sealing grooves (9) are provided with first threaded grooves (10).

8. The wear-resistant liner replacement device for a pulp heavy impurity conveying trough according to claim 7, characterized in that: Two sealing plates (11) are fixedly connected to both sides of the cover plate (3). The outer surfaces of the four sealing plates (11) are slidably connected to the inner walls of the corresponding sealing grooves (9). The interior of each of the four sealing plates (11) is provided with a first bolt (12). The bottom ends of the four first bolts (12) are threadedly connected to the inner walls of the corresponding first threaded grooves (10).

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