A pulp degritting device

Abstract

The utility model provides a kind of paper pulp deslagging device, belong to paper pulp processing technical field, the outer side wall of the cylinder is provided with feed inlet, it is characterized by: the detachable top cover is provided on the top of the cylinder;The upper portion of the top cover is equipped with motor, and the output end of motor is connected with driving column, and the bottom of driving column is equipped with quick release joint, and stirring rod is connected by the quick release joint;Stirring blade is symmetrically equipped on the surface of stirring rod both sides;The utility model can be convenient for the disassembly and repair of stirring blade, facilitate staff to carry out thorough cleaning and repair work, guarantee subsequent deslagging effect, improve paper pulp quality, reduce the cost required for maintenance.

Description

Technical Field

[0001] This utility model relates to the field of pulp processing technology, specifically to a pulp deslagging device. Background Technology

[0002] In the papermaking industry, pulp desanders are one of the key pieces of equipment for ensuring pulp quality. They effectively remove impurities from the pulp, improving its purity and thus providing high-quality raw materials for subsequent paper production. Existing pulp desanders are constantly evolving in terms of structural design and functional implementation to meet the ever-increasing production demands.

[0003] Utility model patent CN222119781U discloses a pulp descaling device, including multiple descaling units installed on a support frame. Each descaling unit includes a conical cylinder, a pulp inlet branch pipe, a pulp outlet branch pipe, a slag discharge box, and a backflushing branch pipe disposed on the conical cylinder. The pulp outlet branch pipe is located near the upper part of the conical cylinder, the backflushing branch pipe is located on one side of the slag discharge box, and the pulp inlet branch pipe is located near the middle part of the conical cylinder. The conical cylinder also has a stirring assembly for generating swirling flow force between the pulp and water. By setting the stirring assembly inside the descaling device, centrifugal force can be provided for the pulp descaling process, and the magnitude of the centrifugal force is adjusted by the rotation speed of the stirring assembly. Compared with the traditional method of relying on high-velocity pulp entering the conical cylinder to provide centrifugal force, the centrifugal force provided by the stirring assembly can be adjusted according to the pulp concentration and will not affect the pressure difference between the slag discharge box and the conical cylinder.

[0004] Although the equipment uses stirring blades to further control centrifugal force, after long-term use, impurities easily accumulate on the stirring blades, and wear or damage occurs. However, the blades of the equipment cannot be disassembled, making it difficult to thoroughly clean, repair or replace them. This not only reduces the slag removal effect and affects the quality of pulp, but may also cause the equipment to stop due to malfunctions, increasing maintenance costs. Utility Model Content

[0005] In view of this, the present invention provides a pulp deslagging device that facilitates the disassembly and maintenance of the stirring blades, allows for thorough cleaning and maintenance by staff, ensures subsequent deslagging effect, improves pulp quality, and reduces maintenance costs.

[0006] To solve the above-mentioned technical problems, this utility model provides a pulp deslagging device, including a cylinder with a feed inlet on the outer wall and a detachable top cover. A motor is mounted on the upper part of the top cover, with its fixed end fixed to the upper wall and its output end penetrating the upper wall and extending into the interior of the top cover. A drive column is connected to the motor's output end, and a quick-release connector is provided at the bottom of the drive column, connecting to a stirring rod. Stirring blades are symmetrically arranged on both sides of the stirring rod's surface. When it is necessary to disassemble the stirring rod to clean the stirring blades, the top cover is first removed from the top of the cylinder, and then the stirring rod is separated from the drive column via the quick-release connector, thus facilitating the disassembly and maintenance of the stirring blades. This allows for thorough cleaning and maintenance by personnel, ensuring subsequent deslagging effectiveness, improving pulp quality, and reducing maintenance costs.

[0007] Two first connecting blocks are provided on both sides of the upper end face of the cylinder, and two second connecting blocks are provided on both sides of the lower end face of the top cover. Locking bolts are inserted into the through holes in the centers of the first and second connecting blocks and are fixed by nuts screwed on both ends of the locking bolts. During installation, the second connecting blocks at the lower end of the top cover are aligned with the first connecting blocks at the upper end of the cylinder, and the locking bolts are tightened by the nuts at both ends after passing through the through holes. During disassembly, the top cover can be separated simply by loosening the nuts.

[0008] The quick-release connector includes a insertion slot at the bottom of the drive column, with two positioning holes extending into the insertion slot on both sides of the circumferential surface of the drive column; it also includes a connector at the top of the stirring rod, the size of which matches the clearance of the insertion slot; the connector has a positioning mechanism, which includes an elastic element and a positioning post. When the connector is inserted into the receiving slot, the elastic element can push the positioning post into the positioning hole to achieve fixed installation of the stirring rod; when the connector at the top of the stirring rod is inserted into the insertion slot at the bottom of the drive column, when the connector reaches a predetermined depth, the elastic element in the positioning mechanism pushes the positioning post to pop out laterally, automatically locking it into the positioning hole on the side wall of the drive column to complete the locking, making the operation more convenient.

[0009] The elastic element includes a groove inside the connector, within which two push blocks are slidably fitted. A spring is located at the center of the groove, with its two ends fixed to the side walls of the two push blocks. Through holes are formed on both side walls of the connector, leading to the groove. A positioning pin is fixed to the side wall of each push block, passing through the through hole and inserted into a positioning hole. Before the connector is inserted into the insertion slot, the positioning pin can be pressed to move it into the groove. This compresses the two push blocks, causing them to slide towards the center of the groove and compressing the spring. Then, the connector is inserted into the insertion slot. When the positioning hole reaches the alignment position, the spring releases, pushing the push blocks outward and causing the positioning pin to insert into the positioning hole. Disassembly is achieved by pressing the positioning pin in the opposite direction.

[0010] Two guide grooves are respectively opened on the upper and lower inner side walls of the slide. The push block is equipped with a guide block at the position of the guide groove, and the guide block slides into the guide groove. During the movement of the push block, the guide block on it slides along the guide groove on the inner side wall of the slide, which improves the stability of the sliding process.

[0011] The upper end face of the positioning post is a sloping structure, with its sloping direction facing the insertion side of the insertion slot. The operator can directly insert the connector into the connection slot. At this time, the sloping surface of the positioning post will contact the lower end face of the drive post, thereby driving the positioning post to move closer to the slide groove through the sloping surface, which in turn drives the push block to compress the spring. After the insertion is completed, the spring rebounds and pushes the push block to push the positioning post into the positioning hole, thus realizing the insertion. There is no need to press the positioning post before insertion, reducing the operation steps.

[0012] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0013] 1. When using this utility model, it is convenient to disassemble and repair the stirring blade, which makes it easy for staff to thoroughly clean and repair it, ensuring the subsequent slag removal effect, improving pulp quality, and reducing the cost of maintenance.

[0014] 2. When this utility model is used, when the connector reaches the predetermined depth, the elastic element in the positioning mechanism pushes the positioning column to pop out laterally and automatically locks into the positioning hole on the side wall of the drive column, making the operation more convenient.

[0015] 3. When this utility model is used, during the movement of the push block, the guide block on it slides along the guide groove on the inner side wall of the slide groove, which improves the stability of the sliding process.

[0016] 4. When using this utility model, after the insertion is completed, the spring rebounds and the push block pushes the positioning pin into the positioning hole, thereby realizing the insertion. There is no need to press the positioning pin before insertion, reducing the operation steps. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the internal structure of the cylinder of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the present invention after the stirring blades have been removed;

[0020] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0021] Figure 5 For the present utility model Figure 2Enlarged cross-sectional view of the internal structure at point B.

[0022] Explanation of reference numerals in the attached figures:

[0023] 100. Cylinder body; 101. Feed inlet; 102. First connecting block; 200. Top cover; 201. Motor; 202. Second connecting block; 203. Drive column; 204. Positioning hole; 300. Stirring rod; 301. Stirring blade; 400. Connector; 401. Positioning column; 402. Slide groove; 403. Spring; 404. Push block; 405. Guide groove; 406. Guide block. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the appendices of the embodiments of this utility model. Figure 1-5 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0025] A pulp deslagging device, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown: The device includes a cylindrical body 100, with a feed inlet 101 on its outer side wall. A detachable top cover 200 is provided on the top of the cylindrical body 100. A motor 201 is located on the upper part of the top cover 200. The fixed end of the motor 201 is fixed to the upper wall of the top cover 200, and the output end of the motor 201 penetrates through the upper wall of the top cover 200 and extends into the interior of the top cover 200. The output end of the motor 201 is connected to a drive column 203. A quick-release connector is provided at the bottom of the drive column 203, and a stirring rod 300 is connected to it via the quick-release connector. Stirring blades 301 are symmetrically arranged on both sides of the surface of the stirring rod 300.

[0026] When it is necessary to disassemble the stirring rod 300 to clean the stirring blade 301, first remove the top cover 200 from the top of the cylinder 100, and then separate the stirring rod 300 from the drive column 203 through the quick-release connector, thereby realizing the disassembly of the stirring rod 300. This facilitates the disassembly and maintenance of the stirring blade 301, making it easier for staff to thoroughly clean and maintain it, ensuring the subsequent slag removal effect, improving pulp quality, and reducing maintenance costs.

[0027] Specifically, two first connecting blocks 102 are provided on both sides of the upper end face of the cylinder 100, and two second connecting blocks 202 are provided on both sides of the lower end face of the top cover 200. Locking bolts are inserted into the through holes in the center of the first connecting blocks 102 and the second connecting blocks 202, and are fixed by nuts screwed on both ends of the locking bolts.

[0028] During installation, align the second connecting block 202 at the lower end of the top cover 200 with the first connecting block 102 at the upper end of the cylinder 100, and tighten the locking bolts by screwing them into the nuts at both ends after passing through the through hole. For disassembly, simply loosen the nuts to separate the top cover 200.

[0029] Specifically, the quick-release connector includes a plug groove at the bottom of the drive column 203, and two positioning holes 204 extending into the plug groove are provided on both sides of the circumferential surface of the drive column 203.

[0030] It also includes a connector 400 located at the top of the stirring rod 300, the size of which is matched with the gap of the insertion groove;

[0031] The connector 400 is equipped with a positioning mechanism, which includes an elastic element and a positioning post 401. When the connector 400 is inserted into the receiving groove, the elastic element can push the positioning post 401 into the positioning hole 204 to achieve the fixed installation of the stirring rod 300.

[0032] Insert the connector 400 at the top of the stirring rod 300 into the insertion slot at the bottom of the drive column 203. When the connector 400 reaches the predetermined depth, the elastic element in the positioning mechanism pushes the positioning column 401 to pop out laterally and automatically locks into the positioning hole 204 on the side wall of the drive column 203, making the operation more convenient.

[0033] according to Figure 2 and Figure 5 As shown, the elastic element includes a groove 402 formed inside the connector 400, and two push blocks 404 are slidably fitted inside the groove 402; a spring 403 is provided at the center of the groove 402, and the two ends of the spring 403 are respectively fixed to the side walls of the two push blocks 404; through holes are formed on both side walls of the connector 400, which communicate with the groove 402; a positioning post 401 is fixed on the side wall of the push block 404, and the positioning post 401 passes through the through hole and is inserted into the positioning hole 204.

[0034] Before the connector 400 is inserted into the insertion slot, the positioning pin 401 can be pressed to move it into the slide groove 402. At this time, the two push blocks 404 are squeezed and slide towards the center of the slide groove 402, compressing the spring 403 to store energy. Then, the connector 400 is inserted into the insertion slot. When the positioning hole 204 reaches the alignment position, the spring 403 is released, pushing the push block 404 outward, causing the positioning pin 401 to insert into the positioning hole 204. To disassemble, press the positioning pin 401 in the opposite direction to unlock.

[0035] Specifically, two guide grooves 405 are respectively opened on the upper and lower inner sidewalls of the slide 402. The push block 404 is provided with a guide block 406 corresponding to the position of the guide groove 405, and the guide block 406 slides into the guide groove 405. During the movement of the push block 404, the guide block 406 on it slides along the guide groove 405 on the inner sidewall of the slide 402, thereby improving the stability of the sliding process.

[0036] Preferably, the upper end face of the positioning post 401 is a sloping structure, with its sloping direction facing the insertion direction of the insertion slot. The operator can directly insert the connector 400 into the connection slot. At this time, the sloping surface of the positioning post 401 will contact the lower end face of the drive post 203, thereby driving the positioning post 401 to move closer to the slide groove 402 through the sloping surface, which in turn drives the push block 404 to compress the spring 403. After the insertion is completed, the spring 403 rebounds, causing the push block 404 to push the positioning post 401 into the positioning hole 204, thereby realizing the insertion. Before insertion, there is no need to press the positioning post 401 again, reducing the operation steps.

[0037] It should be clarified that this utility model is mainly used for disassembling and assembling the stirring rod 300. It should be noted that the cylinder 100 and the stirring blade 301 are devices in the prior art CN222119781U. Since they are not the main technical features of this utility model, the model is not limited here, nor is the structure described in detail. Only the usage method and installation position of the quick-release connector are described in detail.

[0038] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A pulp deslagging device, comprising a cylinder (100), wherein a feed inlet (101) is provided on the outer wall of the cylinder (100), characterized in that: The top of the cylinder (100) is detachably provided with a top cover (200); The top cover (200) is equipped with a motor (201) on its upper part, and the output end of the motor (201) is connected to a drive column (203). The bottom of the drive column (203) is provided with a quick-release connector, and a stirring rod (300) is connected to the quick-release connector; The stirring rod (300) has stirring blades (301) symmetrically arranged on both sides of its surface.

2. A pulp degritting device according to claim 1, characterised in that: The upper end face of the cylinder (100) is provided with two first connecting blocks (102) on both sides, and the lower end face of the top cover (200) is provided with two second connecting blocks (202) on both sides. Locking bolts are inserted into the through holes in the center of the first connecting blocks (102) and the second connecting blocks (202), and are fixed by nuts screwed on both ends of the locking bolts.

3. A pulp degritting device according to claim 1, characterized in that The quick-release connector includes a plug groove at the bottom of the drive column (203), and two positioning holes (204) extending into the plug groove are provided on both sides of the circumferential surface of the drive column (203). It also includes a connector (400) located at the top of the stirring rod (300), the size of which matches the gap of the insertion groove; The connector (400) is provided with a positioning mechanism, which includes an elastic element and a positioning post (401). When the connector (400) is inserted into the receiving groove, the elastic element can push the positioning post (401) into the positioning hole (204) to achieve the fixed installation of the stirring rod (300).

4. A pulp degritting device according to claim 3, characterised in that: The elastic element includes a groove (402) formed inside the connector (400), and two push blocks (404) are slidably fitted inside the groove (402); A spring (403) is provided at the center of the slide (402), and the two ends of the spring (403) are respectively fixed to the side walls of the two push blocks (404); The connector (400) has through holes on both sides that connect to the slide groove (402). The positioning post (401) is fixed on the side wall of the push block (404), and the positioning post (401) passes through the through hole and is inserted into the positioning hole (204).

5. A pulp degritting device according to claim 4, characterised in that: Two guide grooves (405) are respectively opened on the upper and lower inner side walls of the slide groove (402). The push block (404) is provided with a guide block (406) corresponding to the position of the guide groove (405), and the guide block (406) slides into the guide groove (405).

6. A pulp degritting device according to claim 4, characterised in that: The upper surface of the positioning post (401) is a sloping structure, and its sloping direction is towards the insertion side of the insertion slot.

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