Screen drum cleaning mechanism

Abstract

The utility model discloses a screen drum cleaning mechanism which comprises an inclined paper machine, a rotating screen drum can drive a rotating assembly to drive a scraper blade to drive a cavity to rotate to be communicated with a filter hole in the inner top face of the screen drum, the section of the cavity is in a horn shape, a three-way pipe is fixedly connected with the scraper blade, and the input end of the three-way pipe is fixedly connected with a filter screen. A plurality of balls are arranged in a vertical pipe of the three-way pipe and can be attached to the surface of the filter screen, a baffle is arranged on the bottom face of the scraper in an attached and sliding mode, a connecting rod is fixedly connected to the top face of the baffle, the top end of the connecting rod is fixedly connected with the bottom face of the clamping hook, and a plurality of cavities are annularly formed in the surface of the scraper and can be communicated with filter holes in the inner top face of the screen drum. When the electric telescopic rod drives the cavity in the scraping plate to slide through the rotating assembly, the air suction assembly works to suck out paper pulp in filtering holes in the inner top face of the screen drum communicated with the cavity, cleaning of the filtering holes in the surface of the screen drum is achieved, the paper pulp dewatering effect is improved, and the paper pulp dewatering frequency is reduced.

Description

Technical field:

[0001] The utility model relates to the technical field of papermaking, in particular to a screen drum cleaning mechanism. Background technology:

[0002] The paper production process mainly consists of pulping section, papermaking section, processing section and other production processes. The papermaking section includes the steps of pulping, impurity removal, refined pulp, beating and other steps. The treated pulp enters the papermaking machine and is initially dehydrated through the screen drum. The screen drum is prone to clogging due to pulp sticking to the inner wall after long-term operation, and a screen drum cleaning mechanism is required to clean the screen drum.

[0003] The existing screen drum cleaning mechanism is mainly composed of a scraper and a support rod. The top surface of the scraper is in contact with the inner wall of the screen drum. The support rod is fixed in the papermaking machine. The scraper is slidably sleeved on the support rod and is pushed by an electric telescopic rod to slide the scraper to clean the inner wall of the rotating screen drum. The scraper can only clean the pulp on the inner wall of the screen drum and cannot scrape out the pulp adhered to the filter holes on the surface of the screen drum. The pulp adhered to the filter holes on the surface of the screen drum can easily cause the screen drum to be blocked, resulting in a reduced dehydration effect of the pulp, and repeated pulp dehydration is required. Utility model content:

[0004] To this end, the purpose of the utility model is to provide a screen drum cleaning mechanism to overcome the existing technology because the existing screen drum cleaning mechanism is mainly composed of a scraper and a support rod, the top surface of the scraper is in contact with the inner wall of the screen drum, the support rod is fixed in the papermaking machine, the scraper is slidably sleeved on the support rod, and the scraper is pushed to slide by an electric telescopic rod to clean the inner wall of the rotating screen drum. The scraper can only clean the pulp on the inner wall of the screen drum and cannot scrape out the pulp adhered to the filter holes on the surface of the screen drum. The pulp adheres to the filter holes on the surface of the screen drum, which can easily cause the screen drum to be blocked, resulting in a reduced dehydration effect of the pulp and the need for repeated pulp dehydration.

[0005] The utility model is implemented by the following technical solutions:

[0006] A screen drum cleaning mechanism comprises an inclined papermaking machine, wherein two cylinders are symmetrically fixedly connected to the inner wall of the papermaking machine, a screen drum is arranged between the two cylinders in a rotatable fit, a sealing ring is fixedly embedded in the inner wall of the cylinder, the side wall of the sealing ring is in a fit with the side wall of the screen drum, a rotating component is fixedly connected inside the papermaking machine, a scraper is rotatably sleeved on the rotating component, the top surface of the scraper is in a fit with the inner top surface of the screen drum, a plurality of cavities are evenly opened on the outer wall of the scraper, a plurality of cavities are fixedly connected with a suction component, an electric telescopic rod is fixedly connected between the rotating component and the inner wall of the papermaking machine, the electric telescopic rod can drive the rotating component to drive the scraper to slide, the input end of the rotating component is in a fit with the inner wall of the screen drum, and the rotating screen drum can drive the rotating component to drive the cavity on the scraper to rotate and be connected with the filter hole on the inner top surface of the screen drum.

[0007] Preferably, the cross-sectional shape of the cavity is trumpet-shaped.

[0008] Preferably, the rotating assembly includes two bearings symmetrically fixed on the inner wall of the papermaking machine, two support rods are fixedly connected between the inner rings of the two bearings, the scraper is rotatably sleeved on the two support rods, and rollers are rotatably sleeved on the two support rods. The side walls of the rollers are fixedly connected to the side walls of the scraper, the surface of the roller is fitted with the inner top surface of the screen cylinder, the side walls of the rollers are fixedly connected to the side walls of the rollers, a hook is slidably sleeved on the ring, and the side walls of the hook are fixedly connected to the output end of the electric telescopic rod.

[0009] Preferably, the suction assembly includes a three-way pipe connected to the cavity, the three-way pipe is fixedly connected to the scraper, the input end of the three-way pipe is fixedly connected to a filter screen, the filter screen is arranged in the cavity, the three-way pipe is arranged between two support rods, and a multi-section telescopic tube is rotatably connected in a transverse tube of the three-way pipe, one end of the multi-section telescopic tube is fixedly connected to a suction fan, and the suction fan is fixedly arranged on the outer wall of the papermaking machine.

[0010] Preferably, a plurality of balls are installed in the vertical tube of the three-way pipe, and the balls can fit with the surface of the filter screen.

[0011] Preferably, a baffle is slidably provided on the bottom surface of the scraper, a connecting rod is fixedly connected to the top surface of the baffle, and the top end of the connecting rod is fixedly connected to the bottom surface of the hook.

[0012] The utility model has the advantages that a plurality of cavities are annularly opened on the surface of the scraper, and the cavities can be communicated with the filter holes on the top surface of the screen drum. The electric telescopic rod drives the cavities on the scraper to slide through the rotating component, and the suction component works to suck out the pulp in the filter holes on the top surface of the screen drum that are communicated with the cavities, thereby realizing the cleaning of the filter holes on the surface of the screen drum, improving the dehydration effect of the pulp, and reducing the number of pulp dehydration times. Description of the drawings:

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is the structural diagram of the utility model;

[0015] Figure 2 This is the front view of the structure of the utility model;

[0016] Figure 3 It is a partial left view of the structure of the utility model;

[0017] Figure 4 It is a partial right view of the structure of the utility model;

[0018] Figure 5 It is a three-dimensional diagram of the structure of the utility model;

[0019] Figure 6 It is a partial enlarged view of the utility model.

[0020] In the figure: paper machine 1, cylinder 2, screen cylinder 3, sealing ring 4, bearing 5, support rod 6, roller 7, ring 8, hook 9, electric telescopic tube 10, scraper 11, cavity 12, filter screen 13, tee pipe 14, multi-section telescopic tube 15, suction fan 16, ball 17, baffle 18, connecting rod 19. Specific implementation method:

[0021] In order to make the purpose and advantages of the utility model more clearly understood, the utility model is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0022] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0023] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0024] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0025] like Figure 1-Figure 6As shown, the utility model provides the following technical solutions: a screen drum cleaning mechanism comprises an inclined paper machine 1, wherein two cylinders 2 are symmetrically fixedly connected to the inner wall of the paper machine 1, a screen drum 3 is arranged between the two cylinders 2 to fit and rotate, a sealing ring 4 is fixedly embedded in the inner wall of the cylinder 2, and the side wall of the sealing ring 4 fits with the side wall of the screen drum 3, a rotating component is fixedly connected in the paper machine 1, a scraper 11 is fitted and rotated on the rotating component, the top surface of the scraper 11 fits with the inner top surface of the screen drum 3, a plurality of cavities 12 are evenly opened on the outer wall of the scraper 11, a plurality of cavities 12 are fixedly connected with a suction component, an electric telescopic rod 10 is fixedly connected between the rotating component and the inner wall of the paper machine 1, the electric telescopic rod 10 can drive the rotating component to drive the scraper 11 to slide, the input end of the rotating component fits with the inner wall of the screen drum 3, and the rotating screen drum 3 can drive the rotating component to drive the cavity 12 on the scraper 11 to rotate and be connected with the filter hole on the inner top surface of the screen drum 3.

[0026] The cross-sectional shape of the cavity 12 is trumpet-shaped, which increases the number of filter holes covered by the cavity 12 on the sieve drum 3 and improves work efficiency.

[0027] Please combine Figure 1 As shown, during the use process, when pulp needs to be dehydrated, the pulp to be dehydrated is added to the screen drum 3 along the feeding end of the paper machine 1, and the motor drives the screen drum 3 to rotate through the gear to dehydrate the incoming pulp, and the screen drum 3 drives the rotating component to rotate, and the screen drum 3 drives the scraper 11 to rotate to clean the inner wall of the screen drum 3, and the scraper 11 drives the multiple cavities 12 to rotate and communicate with the filter holes on the top surface of the screen drum 3 in turn, and the suction component works to suck the pulp in the filter holes on the top surface of the screen drum 3 connected with the cavity 12. The sucked out pulp enters the cavity 12, the cavity 12 with the pulp gradually rotates and tilts downward, the pulp inside the cavity 12 slides along the scraper 11 into the screen drum 3 of the paper machine 1, the output end of the electric telescopic rod 10 drives the rotating component to slide, the rotating component drives the scraper 11 to slide, and the scraper 11 drives the cavity 12 to slide, so as to realize the lateral cleaning of the filter holes on the top surface of the screen drum 3, and suck out the pulp in the filter holes on the top surface of the screen drum 3, thereby improving the dehydration effect of the pulp and reducing the number of pulp dehydration times.

[0028] Please combine Figure 1-Figure 6 As shown, an embodiment of a rotating assembly comprises two bearings 5 ​​symmetrically fixed on the inner wall of a paper machine 1, two support rods 6 are fixedly connected between the inner rings of the two bearings 5, a scraper 11 is rotatably sleeved on the two support rods 6, a roller 7 is rotatably sleeved on the two support rods 6, a side wall of the roller 7 is fixedly connected to the side wall of the scraper 11, a surface of the roller 7 is fitted with an inner top surface of the screen drum 3, a ring 8 is fixedly connected to the side wall of the roller 7, a hook 9 is slidably sleeved on the ring 8, and a side wall of the hook 9 is fixedly connected to the output end of an electric telescopic rod 10.

[0029] Please combine Figure 1As shown, during use, the output end of the electric telescopic rod 10 pushes the hook 9 to move, the hook 9 drives the ring 8 to move, the ring 8 drives the roller 7 to slide on the support rod 6, the roller 7 drives the scraper 11 to move, the scraper 11 drives the cavity 12 to move, the rotating screen drum 3 drives the roller 7 to rotate, the roller 7 drives the scraper 11 to rotate, the scraper 11 drives the cavity 12 to rotate to clean the filter holes on the top surface of the screen drum 3.

[0030] Please combine Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, an embodiment of a suction component includes a three-way pipe 14 connected to a cavity 12, the three-way pipe 14 is fixedly connected to a scraper 11, a filter screen 13 is fixedly connected to an input end of the three-way pipe 14, the filter screen 13 is arranged in the cavity 12, the three-way pipe 14 is arranged between two support rods 6, a multi-section telescopic pipe 15 is rotatably connected in a transverse pipe of the three-way pipe 14, one end of the multi-section telescopic pipe 15 is fixedly connected to a suction fan 16, and the suction fan 16 is fixedly arranged on the outer wall of the papermaking machine 1.

[0031] Please combine Figure 1 As shown, during use, when the scraper 11 moves, the scraper 11 drives the tee 14 to move, and the tee 14 drives the multi-section telescopic tube 15 to extend or shorten. When the scraper 11 rotates, the scraper 11 drives the tee 14 to rotate, and the cross tube of the tee 14 rotates on the input end of the multi-section telescopic tube 15. The tee 14 drives the two support rods 6 to rotate, and the support rods 6 drive the bearing 5 to rotate. The suction fan 16 works so that the pulp in the filter hole connected to the cavity 12 on the top surface of the screen drum 3 is sucked out, and the sucked out pulp falls on the filter screen 13. The filter screen 13 blocks the pulp to prevent the pulp from entering the tee 14.

[0032] A plurality of balls 17 are installed in the vertical pipe of the tee pipe 14 , and the balls 17 can fit with the surface of the filter screen 13 .

[0033] The scraper 11 drives the three-way pipe 14 to rotate, and the three-way pipe 14 drives the internal ball 17 to rotate. The rotation of the ball 17 can repeatedly hit the surface of the filter screen 13 to clean the pulp on the surface of the filter screen 13, effectively reducing the blockage of the filter screen 13.

[0034] A baffle 18 is slidably provided on the bottom surface of the scraper 11 , and a connecting rod 19 is fixedly connected to the top surface of the baffle 18 , and the top end of the connecting rod 19 is fixedly connected to the bottom surface of the hook 9 .

[0035] Please combine Figure 1As shown, during use, when the top end of the scraper 11 rotates and fits against the top surface of the screen drum 3, the bottom end of the scraper 11 just fits against the baffle 18 to block the bottom end of the scraper 11, thereby increasing the flow rate of the gas from the top end of the scraper 11 into the cavity 12, making it easier to clean the pulp in the filter holes of the screen drum 3, and the output end of the electric telescopic rod 10 pushes the hook 9 to move, the hook 9 drives the connecting rod 19 to move, and the connecting rod 19 drives the baffle 18 to move, so that the baffle 18 is always below the scraper 11.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A screen drum cleaning mechanism, comprising a tilted paper machine, wherein two cylinders are symmetrically fixedly connected to the inner wall of the paper machine, a screen drum is arranged between the two cylinders for close fitting and rotation, a sealing ring is fixedly embedded in the inner wall of the cylinder, and the side wall of the sealing ring is in close fitting with the side wall of the screen drum, characterized in that: A rotating component is fixedly connected inside the papermaking machine, a scraper is rotatably sleeved on the rotating component, the top surface of the scraper is in contact with the inner top surface of the screen cylinder, a plurality of cavities are evenly opened on the outer wall of the scraper, a suction component is fixedly connected between the plurality of cavities, an electric telescopic rod is fixedly connected between the rotating component and the inner wall of the papermaking machine, the electric telescopic rod can drive the rotating component to drive the scraper to slide, the input end of the rotating component is in contact with the inner wall of the screen cylinder, and the rotating screen cylinder can drive the rotating component to drive the cavities on the scraper to rotate and be connected with the filter holes on the inner top surface of the screen cylinder.

2. A screen drum cleaning mechanism according to claim 1, characterized in that: The cross-sectional shape of the cavity is trumpet-shaped.

3. A screen drum cleaning mechanism according to claim 2, characterized in that: The rotating assembly includes two bearings symmetrically fixed on the inner wall of the papermaking machine, two support rods are fixedly connected between the inner rings of the two bearings, the scraper is fitted and rotatably sleeved on the two support rods, and rollers are fitted and rotatably sleeved on the two support rods. The side walls of the rollers are fixedly connected to the side walls of the scraper, the surface of the roller is fitted with the inner top surface of the screen cylinder, the side walls of the rollers are fixedly connected to the side walls of the rollers, a hook is slidably sleeved on the ring, and the side walls of the hook are fixedly connected to the output end of the electric telescopic rod.

4. A screen drum cleaning mechanism according to claim 3, characterized in that: The suction assembly includes a three-way pipe connected to the cavity, the three-way pipe is fixedly connected to the scraper, the input end of the three-way pipe is fixedly connected to a filter screen, the filter screen is arranged in the cavity, the three-way pipe is arranged between two support rods, and a multi-section telescopic pipe is rotatably connected in the transverse pipe of the three-way pipe, one end of the multi-section telescopic pipe is fixedly connected to a suction fan, and the suction fan is fixedly arranged on the outer wall of the papermaking machine.

5. A screen drum cleaning mechanism according to claim 4, characterized in that: A plurality of balls are arranged in the vertical pipe of the three-way pipe, and the balls can be fitted with the surface of the filter screen.

6. A screen drum cleaning mechanism according to claim 3 or 4, characterized in that: The bottom surface of the scraper is fitted and slidably provided with a baffle, the top surface of the baffle is fixedly connected with a connecting rod, and the top end of the connecting rod is fixedly connected to the bottom surface of the hook.

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