Paper pulp impurity screening device convenient to clean

Abstract

The utility model discloses a paper pulp impurity screening device convenient to clean, which relates to the technical field of screening machines and comprises a base, an outer barrel is fixedly connected to the top end of the base, a screening barrel is arranged in the outer barrel, a rotating ring is movably connected to the base, and the top end of the rotating ring is fixedly connected with the bottom end of the screening barrel through a bolt. A rotating assembly is arranged in the base, the top end of the rotating assembly is fixedly connected with a cleaning assembly, the cleaning assembly is movably connected with the inner wall of the screen drum, and the rotating assembly is connected with the rotating ring. By means of the rotating assembly, large-particle impurities are left on the inner wall of the screen drum, synchronous direction rotation of the gear ring and the gear and reverse rotation of the cleaning rod and the screen drum can be achieved through rotation of the rotating rod, the cleaning capacity of the cleaning rod to the screen drum is improved, and the rotating rod rotates synchronously, so that the cleaning efficiency is improved. And impurities at the bottom of the screen drum can be conveniently scraped to the pipe opening of the blow-off pipe through the scraping strip.

Description

Technical Field

[0001] This utility model relates to the field of screening machine technology, specifically a convenient and clean pulp impurity screening device. Background Technology

[0002] Screening machines are widely used in the food, chemical, and pharmaceutical industries. Their main function is to screen raw materials to separate fine particles that meet requirements and remove larger impurities. Traditional screening machines typically include a feeding system, a screening system, and a discharge system, with the screening system being the core component, achieving material separation through screens or screen cylinders.

[0003] However, existing screening machines have some problems during use. During the screening process, larger particles of impurities tend to adhere to the inner wall of the screen cylinder. Prolonged operation can lead to screen cylinder blockage, affecting screening efficiency and quality. The usual method is to replace the screen cylinder to maintain the screening effect of pulp. This method is relatively troublesome, and the screening effect of the screen cylinder gradually decreases during use. Therefore, it is necessary to clean the inner wall of the screen cylinder in a timely manner. For this reason, a pulp impurity screening device that is easy to clean is needed to solve the shortcomings of the existing one. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a convenient and easy-to-clean pulp impurity screening device. The rotating component improves the cleaning ability of the cleaning rod on the screen cylinder, and the synchronous rotation of the rotating rod makes it easy to use the scraper to scrape the impurities at the bottom of the screen cylinder to the outlet of the sewage pipe. The cleaning component removes stubborn impurities adhering to the inner wall of the screen cylinder, and in conjunction with the spray nozzle of the sprayer, high-pressure water is used to backwash the impurities away from the inner wall of the screen cylinder.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a convenient and clean pulp impurity screening device, comprising...

[0006] The base has an outer cylinder fixedly connected to its top, a sieve cylinder inside the outer cylinder, a rotating ring movably connected to the base, and a rotating component inside the base.

[0007] The top end of the rotating ring is fixedly connected to the bottom end of the screen cylinder by bolts;

[0008] A cleaning component is fixedly connected to the top of the rotating component;

[0009] The cleaning component is movably connected to the inner wall of the screen cylinder, and the rotating component is connected to the rotating ring;

[0010] A sprayer is fixedly connected to the inner side of the outer cylinder, and several nozzles of the sprayer face the outer side of the screen cylinder. A drain pipe is fixedly connected to the bottom of the base.

[0011] The present invention is further configured such that the rotating assembly includes a rotating rod, a gear ring, a gear, a first synchronous pulley, a second synchronous pulley, a rotating shaft, and a synchronous belt. The first synchronous pulley is fixedly connected to the outside of the rotating rod, the second synchronous pulley is fixedly connected to the outside of the rotating shaft, the synchronous belt is sleeved on the outside of the first and second synchronous pulleys, and the first synchronous pulley, the second synchronous pulley, and the synchronous belt constitute a belt drive structure. The gear is fixedly connected to the outside of the rotating shaft, and the gear meshes with the gear ring.

[0012] The present invention is further configured such that the first synchronous wheel is movably connected to the inside of the base via a rotating rod, the second synchronous wheel and the gear are both movably connected to the inside of the base via a rotating shaft, and the gear ring is fixedly connected to the bottom end of the rotating ring.

[0013] The present invention is further configured such that a servo motor is fixedly connected inside the base, and the output end of the servo motor is fixedly connected to the bottom end of the rotating rod.

[0014] The present invention is further configured such that the cleaning assembly includes a cleaning rod, a connecting rod, a sleeve, and a guide rod. The cleaning rods are symmetrically arranged, with the outer side of the cleaning rods fitting against the inner wall of the screen cylinder. A set of symmetrical connecting rods is fixedly connected to the inner side of each cleaning rod, and the other end of each connecting rod is fixedly connected to the outer side of the sleeve. The bottom end of the sleeve is movably connected to the top end of the guide rod.

[0015] The present invention is further configured such that the cleaning assembly also includes a reset spring, the bottom end of the guide rod is fixedly connected to the top end of the rotating rod, and the bottom end of the reset spring is fixedly connected to the top end of the guide rod, and the top end of the reset spring is fixedly connected to the inside of the screen cylinder.

[0016] The present invention is further configured such that a toothed disc is fixedly connected to the top of the base, the bottom end of the cleaning rod abuts against the teeth of the toothed disc, and a scraper is fixedly connected to the outer side of the rotating rod, and the scraper is movably fitted with the inner side of the toothed disc and the top of the base.

[0017] Beneficial effects:

[0018] Compared with existing technologies, this convenient and clean pulp impurity screening device has the following advantages:

[0019] I. This utility model, through the setting of a rotating component, allows larger particles of impurities to remain on the inner wall of the screen cylinder. By rotating the rotating rod, the gear ring and gear can rotate synchronously, while the cleaning rod and screen cylinder rotate in opposite directions, improving the cleaning rod's cleaning ability on the screen cylinder. Furthermore, the synchronous rotation of the rotating rod makes it easy to use a scraper to scrape the impurities at the bottom of the screen cylinder to the outlet of the sewage pipe.

[0020] II. This utility model, through the setting of the cleaning component, and the cooperation of the return spring and the toothed disc, realizes that the cleaning rod vibrates up and down during the rotation, thereby improving the cleaning effect of the cleaning rod and achieving efficient cleaning of the screen cylinder. It scrapes off stubborn impurities adhering to the inner wall of the screen cylinder, and, in conjunction with the nozzle of the sprayer, uses high-pressure water to backwash and flush away the impurities brushed off from the inner wall of the screen cylinder.

[0021] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the pulp impurity screening device of this utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the outer cylinder of this utility model;

[0024] Figure 3 This is a schematic diagram of the rotating component structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the cleaning component structure of this utility model;

[0026] Figure 5 This utility model Figure 2 A magnified structural diagram of point A in the middle.

[0027] In the diagram: 1. Base; 2. Outer cylinder; 3. Screen cylinder; 4. Rotating ring; 5. Rotating assembly; 501. Rotating rod; 502. Gear ring; 503. Gear; 504. First synchronous pulley; 505. Second synchronous pulley; 506. Rotating shaft; 507. Synchronous belt; 6. Cleaning assembly; 601. Cleaning rod; 602. Connecting rod; 603. Sleeve; 604. Guide rod; 605. Return spring; 7. Sprayer; 8. Drain pipe; 9. Servo motor; 10. Gear plate; 11. Scraper. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figure 1-5As shown, this utility model provides a technical solution: a convenient and easy-to-clean pulp impurity screening device, including a base 1, an outer cylinder 2 fixedly connected to the top of the base 1, a cylinder cover fixedly connected to the top of the outer cylinder 2, and a feed inlet provided on the cylinder cover; a discharge outlet provided on the outer side of the outer cylinder 2 for discharging the screened pulp; a screen cylinder 3 provided inside the outer cylinder 2; a rotating ring 4 movably connected to the base 1, and the top of the rotating ring 4 is fixedly connected to the bottom of the screen cylinder 3 by bolts; a rotating assembly 5 provided inside the base 1; and a cleaning assembly 6 fixedly connected to the top of the rotating assembly 5. 6 is movably connected to the inner wall of the screen cylinder 3. The rotating component 5 is connected to the rotating ring 4. The inner side of the outer cylinder 2 is fixedly connected to the sprayer 7. The inlet end of the sprayer 7 is located on the outer side of the outer cylinder 2 and is connected to the outlet end of the water pump, so that water is pumped into the interior of the outer cylinder 2. The impurities on the inner wall of the outer cylinder 2 are washed away by the spray nozzles, so that they are separated from the inner wall of the screen cylinder 3. Several spray nozzles of the sprayer 7 are all facing the outer side of the screen cylinder 3. The bottom of the base 1 is fixedly connected to the drain pipe 8. This device mainly shows the cleaning of the screen cylinder 3 inside the screening machine. Therefore, not all the structures of the screening machine are shown in the process.

[0030] like Figure 1-3 As shown, the rotating assembly 5 includes a rotating rod 501, a gear ring 502, a gear 503, a first synchronous pulley 504, a second synchronous pulley 505, a rotating shaft 506, and a synchronous belt 507. The first synchronous pulley 504 is fixedly connected to the outside of the rotating rod 501, the second synchronous pulley 505 is fixedly connected to the outside of the rotating shaft 506, and the synchronous belt 507 is sleeved on the outside of the first synchronous pulley 504 and the second synchronous pulley 505. The first synchronous pulley 504, the second synchronous pulley 505, and the synchronous belt 507 constitute a complete assembly. The belt drive structure has a gear 503 fixedly connected to the outside of the rotating shaft 506, and the gear 503 meshes with the toothed ring 502. The first synchronous pulley 504 is movably connected to the inside of the base 1 through the rotating rod 501. The second synchronous pulley 505 and the gear 503 are both movably connected to the inside of the base 1 through the rotating shaft 506. The toothed ring 502 is fixedly connected to the bottom end of the rotating ring 4. A servo motor 9 is fixedly connected inside the base 1, and the output end of the servo motor 9 is fixedly connected to the bottom end of the rotating rod 501.

[0031] The servo motor 9 is started, driving the rotating rod 501 to rotate, causing the first synchronous wheel 504 to rotate synchronously. Under the action of the synchronous belt 507, the second synchronous wheel 505 and the gear 503 rotate synchronously. Since the gear 503 and the gear ring 502 mesh, the gear ring 502 and the rotating ring 4 are controlled to rotate synchronously. The rotating ring 4 drives the screen cylinder 3 to rotate inside the outer cylinder 2, thereby performing rotary filtration of the slurry. This allows the fine slurry to pass through the screen holes, while larger particles of impurities remain on the inner wall of the screen cylinder 3. By rotating the rotating rod 501, the gear ring 502 and the gear 503 can rotate synchronously, while the cleaning rod 601 and the screen cylinder 3 rotate in opposite directions, improving the cleaning ability of the cleaning rod 601 on the screen cylinder 3. Furthermore, the synchronous rotation of the rotating rod 501 makes it easy to use the scraper 11 to scrape the impurities at the bottom of the screen cylinder 3 to the opening of the drain pipe 8.

[0032] like Figure 1 , Figure 4 and Figure 5 As shown, the cleaning assembly 6 includes a cleaning rod 601, a connecting rod 602, a sleeve 603, and a guide rod 604. The cleaning rods 601 are symmetrically arranged, with their outer sides fitting against the inner wall of the screen cylinder 3. A set of symmetrical connecting rods 602 are fixedly connected to the inner side of each cleaning rod 601, and the other end of each connecting rod 602 is fixedly connected to the outer side of the sleeve 603. The bottom end of the sleeve 603 is movably connected to the top end of the guide rod 604. The cleaning assembly 6 also includes a reset spring. The bottom end of the spring 605 and the guide rod 604 are fixedly connected to the top end of the rotating rod 501, and the bottom end of the return spring 605 is fixedly connected to the top end of the guide rod 604. The top end of the return spring 605 is fixedly connected to the inside of the screen cylinder 3. The top of the base 1 is fixedly connected to the toothed disc 10. The bottom end of the cleaning rod 601 abuts against the teeth of the toothed disc 10. The outside of the rotating rod 501 is fixedly connected to the scraper 11, and the scraper 11 is movably fitted with the inside of the toothed disc 10 and the top of the base 1.

[0033] The rotating rod 501 drives the synchronous rotation, thereby controlling the rotation of the sleeve 603. Under the action of the connecting rod 602, the cleaning rod 601 cleans the inner wall of the screen cylinder 3. The screen cylinder 3 and the cleaning rod 601 rotate in opposite directions. During the rotation of the cleaning rod 601, due to the action of the return spring 605, the cleaning rod 601 tends to move downward. The bottom end of the cleaning rod 601 abuts against the teeth of the toothed disc 10, thus causing the cleaning rod 601 to vibrate longitudinally during rotation, thereby brushing down the impurities on the inner wall of the screen cylinder 3. The impurities are then discharged from the drain pipe 8.

[0034] By cooperating with the return spring 605 and the toothed disc 10, the cleaning rod 601 vibrates up and down during rotation, thereby improving the cleaning effect of the cleaning rod 601 and achieving efficient cleaning of the screen cylinder 3. It scrapes away stubborn impurities adhering to the inner wall of the screen cylinder 3, and, in conjunction with the nozzle of the sprayer 7, uses high-pressure water to backwash away the impurities brushed off from the inner wall of the screen cylinder 3.

[0035] Working principle: In use, firstly, a cylinder cover is fixedly connected to the top of the outer cylinder 2, and the cylinder cover has a feed inlet to introduce the slurry into the inside of the screen cylinder 3; the servo motor 9 is started, driving the rotating rod 501 to rotate, causing the first synchronous wheel 504 to rotate synchronously. Under the action of the synchronous belt 507, the second synchronous wheel 505 and the gear 503 rotate synchronously. Since the gear 503 and the gear ring 502 mesh, the gear ring 502 and the rotating ring 4 are controlled to rotate synchronously. The rotating ring 4 drives the screen cylinder 3 to rotate inside the outer cylinder 2, thereby performing rotary filtration of the slurry, allowing fine slurry to pass through the screen holes, while larger particles of impurities remain on the inner wall of the screen cylinder 3; the rotating rod 501 drives the synchronous rotation This controls the rotation of the sleeve 603. Under the action of the connecting rod 602, the cleaning rod 601 cleans the inner wall of the screen cylinder 3. The screen cylinder 3 and the cleaning rod 601 rotate in opposite directions. During the rotation of the cleaning rod 601, the return spring 605 causes the cleaning rod 601 to tend to move downwards. The bottom end of the cleaning rod 601 abuts against the teeth of the toothed disc 10, causing the cleaning rod 601 to vibrate longitudinally during rotation, thereby brushing off the impurities on the inner wall of the screen cylinder 3. The impurities are then discharged from the drain pipe 8. At the same time, the nozzle of the sprayer 7 sprays high-pressure water onto the outside of the screen cylinder 3, thereby peeling off the impurities on the outside of the screen cylinder 3.

[0036] 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 convenient and easy-to-clean pulp impurity screening device, characterized in that: include A base, the top of which is fixedly connected to an outer cylinder, the inside of which is a sieve cylinder, a rotating ring is movably connected to the base, and a rotating component is provided inside the base; The top end of the rotating ring is fixedly connected to the bottom end of the screen cylinder by bolts; A cleaning component is fixedly connected to the top of the rotating component; The cleaning component is movably connected to the inner wall of the screen cylinder, and the rotating component is connected to the rotating ring; A sprayer is fixedly connected to the inner side of the outer cylinder, and several nozzles of the sprayer face the outer side of the screen cylinder. A drain pipe is fixedly connected to the bottom of the base.

2. The convenient and clean pulp impurity screening device according to claim 1, characterized in that: The rotating assembly includes a rotating rod, a gear ring, a gear, a first synchronous pulley, a second synchronous pulley, a rotating shaft, and a synchronous belt. The first synchronous pulley is fixedly connected to the outside of the rotating rod, the second synchronous pulley is fixedly connected to the outside of the rotating shaft, and the synchronous belt is sleeved on the outside of the first and second synchronous pulleys. The first synchronous pulley, the second synchronous pulley, and the synchronous belt constitute a belt drive structure. The gear is fixedly connected to the outside of the rotating shaft and meshes with the gear ring.

3. The convenient and clean pulp impurity screening device according to claim 2, characterized in that: The first synchronous pulley is movably connected to the inside of the base via a rotating rod, and the second synchronous pulley and the gear are both movably connected to the inside of the base via a rotating shaft. The gear ring is fixedly connected to the bottom end of the rotating ring.

4. The convenient and clean pulp impurity screening device according to claim 3, characterized in that: A servo motor is fixedly connected inside the base, and the output end of the servo motor is fixedly connected to the bottom end of the rotating rod.

5. The convenient and clean pulp impurity screening device according to claim 1, characterized in that: The cleaning assembly includes a cleaning rod, a connecting rod, a sleeve, and a guide rod. The cleaning rods are symmetrically arranged, with the outer side of each cleaning rod fitting against the inner wall of the screen cylinder. A set of symmetrical connecting rods is fixedly connected to the inner side of each cleaning rod. The other end of each connecting rod is fixedly connected to the outer side of the sleeve. The bottom end of the sleeve is movably connected to the top end of the guide rod.

6. The convenient and clean pulp impurity screening device according to claim 5, characterized in that: The cleaning assembly also includes a return spring. The bottom end of the guide rod is fixedly connected to the top end of the rotating rod, the bottom end of the return spring is fixedly connected to the top end of the guide rod, and the top end of the return spring is fixedly connected to the inside of the screen cylinder.

7. The convenient and clean pulp impurity screening device according to claim 6, characterized in that: A toothed disc is fixedly connected to the top of the base, the bottom end of the cleaning rod abuts against the teeth of the toothed disc, and a scraper is fixedly connected to the outer side of the rotating rod. The scraper is movably fitted against the inner side of the toothed disc and the top of the base.

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