Press master mesh cage with efficient water filtering performance

Abstract

The utility model relates to the technical field of shoving machines, in particular to a shoving machine mesh cage with efficient water filtering performance, which comprises a rotatably mounted mesh cage, and a sealed collection box is attached to the bottom of the mesh cage and drives the mesh cage to rotate integrally, so that meshes on the surface of the mesh cage participate in slurry filtering operation, local filtering load is reduced, and filtering efficiency is improved. Impurities on the surface of the mesh cage can be scraped off through scraping strips at the bottom of the sealed collecting box, the possibility that the impurities outside the mesh cage enter and block the meshes is reduced, air in the sealed collecting box is extracted through a draught fan, the difference value is generated between the air pressure in the sealed collecting box and the air pressure in the mesh cage, and therefore the mesh cage is prevented from being blocked. The speed of slurry entering the sealed collecting box in the mesh cage is increased through the negative pressure difference, the slurry finally enters the air exhaust barrel which is located in the mesh cage and rotates in the opposite direction and in differential rotation with the mesh cage through the air exhaust pipe, the slurry flows back into the mesh cage through a plurality of air exhaust holes formed in the surface of the air exhaust barrel, the flowing efficiency of the slurry in the mesh cage is improved, and therefore the water filtering efficiency of the slurry is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pulp squeezers, in particular to a pulp squeezer mesh cage with high efficiency water filtering performance. Background Art

[0002] The screw extruder is composed of a feed port, a spiral blade, a discharge port, a mesh cage, etc. The spiral blade is the core component of the screw extruder, and its shape and speed will affect the conveying of materials. The spiral blade is usually spiral-shaped, but there are other shapes, such as comb-shaped, V-shaped, etc.

[0003] The mesh cage of the traditional screw extruder is a cylindrical mesh structure. With the rotation of the spiral blades, it transports the extruded material residue and discharges the pulp water generated when the spiral blades rotate to squeeze the pulp.

[0004] Traditional mesh cages are generally fixed, and only part of the mesh holes on the mesh cage are involved in slurry filtration. After long-term filtration operations, the mesh cage is easily clogged, reducing the water filtration efficiency. In addition, some impurities in the slurry will be filtered out together with the slurry water. In the process of passing through the mesh holes on the mesh cage, some impurity particles are large and easily attached to the mesh holes of the mesh cage, which slows down the slurry water passing through, further reducing the water filtration efficiency. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the utility model provides a pulping machine mesh cage with high efficiency water filtration performance, which can effectively solve the problems raised in the background technology.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The utility model provides a pulping machine mesh cage with high efficiency in water filtration performance, comprising a rotatably mounted mesh cage, a sealed collecting box attached to the bottom of the mesh cage, two scraping strips symmetrically mounted on the top of the sealed collecting box and attached to the outer cylinder wall of the mesh cage, a fan arranged below the sealed collecting box, an input end of the fan extending into the sealed collecting box, an output end of the fan connected to an exhaust pipe, and a reverse differential rotating assembly comprising an exhaust pipe which is reversely differentially mounted at the center of the inner cavity of the mesh cage and connected to the exhaust pipe.

[0008] Furthermore, two gear rings are fixedly mounted on the outer cylinder wall of the mesh cage, and the two gear rings are respectively arranged at two ends of the mesh cage and do not contact the sealed collection box.

[0009] Furthermore, the bottom of the sealed collection box is connected with a drain pipe, and a one-way valve is installed at the connection point between the drain pipe and the inner cavity of the sealed collection box.

[0010] Furthermore, a bellows is provided at one end of the fan, an exhaust pipe is connected between the fan input end and the inner cavity of the bellows, the input end of the bellows is connected to two suction pipes extending through and into a sealed collection box, and the ends of the suction pipes are installed with water-proof covers.

[0011] Furthermore, the reverse differential rotation assembly also includes a motor arranged above the fan, a first transmission wheel is installed at the output end of the motor, a second transmission wheel is arranged above the first transmission wheel, a transmission belt is wrapped around the first transmission wheel and the second transmission wheel, one end of the exhaust pipe extends through the mesh cage and is fixedly installed on one side of the second transmission wheel, and the end of the exhaust pipe is rotatably installed on the other side of the second transmission wheel and is connected to the inner cavity of the exhaust pipe.

[0012] Furthermore, a pinion gear meshing with the gear ring is fixedly mounted on a side of the first transmission wheel away from the motor.

[0013] Compared with the known prior art, the technical solution provided by the utility model has the following beneficial effects:

[0014] 1. The motor drives the pinion gear to drive the gear ring on the surface of the cage to rotate, and then drives the cage to rotate as a whole, so that the mesh holes on the surface of the cage are all involved in the filtration of the slurry, reducing the local filtration load, and thus reducing the clogging of the cage mesh holes, thereby preliminarily improving the slurry filtration efficiency;

[0015] 2. A sealed collection box is set at the bottom of the rotating mesh cage. The scraper at the bottom of the sealed collection box can scrape off the impurities on the surface of the mesh cage, improve the cleanliness of the mesh cage surface, reduce the possibility of impurities outside the mesh cage entering and clogging the mesh holes, and further improve the slurry water filtration efficiency;

[0016] 3. The air in the sealed collection box is extracted by the fan, thereby reducing the air pressure in the sealed collection box, so that there is a difference in air pressure between the sealed collection box and the mesh cage. The negative pressure difference accelerates the speed at which the slurry in the mesh cage enters the sealed collection box, thereby further improving the slurry water filtration efficiency;

[0017] 4. The air extracted by the fan finally enters the exhaust duct located in the mesh cage and rotating at a differential speed opposite to the mesh cage through the exhaust pipe, and then flows back into the mesh cage through several exhaust holes on the surface of the exhaust duct, thereby improving the flow efficiency of the slurry in the mesh cage and further improving the slurry water filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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 prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the installation structure of the fan and the reverse differential rotation assembly of the utility model;

[0021] Figure 3 This is a schematic diagram of the installation structure of the sealed collection box of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the sealed collection box of the utility model.

[0023] The numbers in the figure represent: 1. mesh cage; 11. gear ring; 2. sealed collection box; 21. scraper; 22. one-way valve; 23. drain pipe; 3. fan; 31. bellows; 32. exhaust pipe; 33. suction pipe; 34. anti-water inlet cover; 35. exhaust pipe; 4. motor; 41. first transmission wheel; 42. second transmission wheel; 43. transmission belt; 44. exhaust pipe; 45. pinion. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model is further described below in conjunction with embodiments.

[0026] Example 1

[0027] Reference Figure 1-4, which is the first embodiment of the utility model, discloses a high-efficiency water-filtering performance pulping machine mesh cage, comprising a rotatably mounted mesh cage 1, a sealed collection box 2 attached to the bottom of the mesh cage 1, and two scraping bars 21 attached to the outer cylinder wall of the mesh cage 1 are symmetrically mounted on the top of the sealed collection box 2. The scraping bars 21 scrape off the impurities remaining on the surface of the mesh cage 1 to prevent these impurities from entering the mesh holes of the mesh cage 1. A part of the impurities scraped off by the scraping bars 21 directly falls out of the sealed collection box 2, and the other part is flushed into the sealed collection box 2 along with the pulp water. At the bottom of the sealed collecting box 2, the fan 3 is arranged below the sealed collecting box 2, the input end of the fan 3 extends into the sealed collecting box 2, and the output end of the fan 3 is connected with the exhaust pipe 35. The reverse differential rotating component includes an exhaust pipe 44 which is installed at the center of the inner cavity of the mesh cage 1 and is connected with the exhaust pipe 35. The inner cylinder cavity of the exhaust pipe 44 passes through the outer cylinder wall and is provided with a plurality of exhaust holes. The air discharged through the exhaust holes can accelerate the circulation speed of the slurry in the mesh cage 1, thereby improving the water filtration efficiency of the slurry passing through the mesh cage 1.

[0028] Example 2

[0029] Reference Figure 1-4 , which is the second embodiment of the utility model. This embodiment is different from the first embodiment in that: two gear rings 11 are fixedly mounted on the outer cylinder wall of the mesh cage 1, and the two gear rings 11 are respectively arranged at both ends of the mesh cage 1 and do not contact the sealed collection box 2. The bottom of the sealed collection box 2 is connected with a drain pipe 23, and a one-way valve 22 is installed at the connection between the drain pipe 23 and the inner cavity of the sealed collection box 2 to prevent outside air from entering the sealed collection box 2 from the drain pipe 23, thereby reducing the extraction efficiency in the mesh cage 1. A bellows 31 is arranged at one end of the fan 3, and an exhaust pipe 32 is connected between the input end of the fan 3 and the inner cavity of the bellows 31. The input end of the bellows 31 is connected with two suction pipes 33 that extend through and into the sealed collection box 2. The ends of the suction pipes 33 are each installed with a water-proof cover 34. The air in the suction pipe 33 is extracted from the bottom of the water-proof cover 34. The water-proof cover 34 is designed in a conical shape, which can avoid In order to prevent the filtered slurry from entering the suction pipe 33 and to prevent the filtered slurry from remaining on the surface of the anti-water inlet cover 34, the reverse differential rotation component also includes a motor 4 arranged above the fan 3, and a first transmission wheel 41 is installed at the output end of the motor 4, and a second transmission wheel 42 is arranged above the first transmission wheel 41, and a transmission belt 43 is arranged around the first transmission wheel 41 and the second transmission wheel 42. One end of the exhaust pipe 44 extends through the outside of the mesh cage 1 and is fixedly installed on one side of the second transmission wheel 42. The end of the exhaust pipe 35 is rotatably installed on the other side of the second transmission wheel 42 and is connected to the inner cavity of the exhaust pipe 44. A pinion 45 meshing with the gear ring 11 is fixedly installed on the side of the first transmission wheel 41 away from the motor 4. Since the outer diameter tooth number ratio of the pinion 45 and the gear ring 11 is different, the exhaust pipe 44 and the mesh cage 1 will eventually rotate in the opposite direction at a differential speed, thereby improving the flow efficiency of the internal slurry.

[0030] The remaining structures are the same as those of Example 1.

[0031] The workflow of this utility model is as follows:

[0032] First, the motor 4 is started to drive the pinion 45 to rotate, and then the gear ring 11 is driven to rotate, so that the mesh cage 1 can rotate in a circular manner. Since the sealed collection box 2 remains stationary, the mesh cage 1 will be in relative contact with the two scraping bars 21 on the top of the sealed collection box 2. The scraping bars 21 can scrape off the impurities remaining on the surface of the mesh cage 1 to prevent these impurities from entering and clogging the mesh holes of the mesh cage 1. The motor 4 drives the first transmission wheel 41 to rotate at the same time, and drives the second transmission wheel 42 to rotate through the transmission belt 43, thereby driving the exhaust pipe 44 to rotate in the opposite direction and at a differential speed in the mesh cage 1.

[0033] Secondly, start the fan 3 and extract the air in the bellows 31 through the exhaust pipe 32. After the pressure in the bellows 31 is reduced, the air in the sealed collection box 2 will be extracted through the suction pipe 33. The sealed collection box 2 is completely fitted with the mesh cage 1, so the air in the mesh cage 1 will be extracted, thereby accelerating the rapid filtration of the slurry in the mesh cage 1 and improving the water filtration efficiency. Moreover, since a water-proof cover 34 is installed at the end of the suction pipe 33, the slurry filtered through the mesh holes on the surface of the mesh cage 1 will not enter through the suction pipe 33, but will fall to the bottom of the sealed collection box 2 and be discharged through the drain pipe 23. The air in the sealed collection box 2 extracted by the fan 3 is discharged into the rotating exhaust pipe 44 through the exhaust pipe 35, and finally discharged into the mesh cage 1 from the exhaust holes on the surface of the exhaust pipe 44, thereby increasing the circulation speed of the slurry in the mesh cage 1, thereby further improving the water filtration efficiency of the slurry in the mesh cage 1.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents. These modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-efficiency water-filtration performance pulping machine mesh cage, characterized in that: The invention comprises a rotatably mounted net cage (1), and further comprises: A sealed collection box (2) is attached to the bottom of the mesh cage (1), and two scraping strips (21) attached to the outer wall of the mesh cage (1) are symmetrically mounted on the top of the sealed collection box (2); A fan (3) is arranged below the sealed collection box (2), the input end of the fan (3) extends into the sealed collection box (2), and the output end of the fan (3) is connected to an exhaust pipe (35); The reverse differential rotation assembly comprises an exhaust pipe (44) which is reversely differentially rotated and installed at the center of the inner cavity of the mesh cage (1) and is connected to the exhaust pipe (35). The inner cavity of the exhaust pipe (44) penetrates the outer wall of the exhaust pipe and is provided with a plurality of exhaust holes.

2. A high efficiency water filtration performance pulping machine mesh cage according to claim 1, characterized in that: Two gear rings (11) are fixedly mounted on the outer cylinder wall of the mesh cage (1); the two gear rings (11) are respectively arranged at two ends of the mesh cage (1) and are not in contact with the sealed collection box (2).

3. The high-efficiency water-filtration performance pulping machine mesh cage according to claim 1, characterized in that: The bottom of the sealed collection box (2) is connected to a drainage pipe (23), and a one-way valve (22) is installed at the point where the drainage pipe (23) is connected to the inner cavity of the sealed collection box (2).

4. A high-efficiency water-filtration performance pulping machine mesh cage according to claim 1, characterized in that: A bellows (31) is provided at one end of the fan (3); an exhaust pipe (32) is connected between the input end of the fan (3) and the inner cavity of the bellows (31); the input end of the bellows (31) is connected to two air suction pipes (33) extending through and into the sealed collection box (2); and the ends of the air suction pipes (33) are both provided with water-proof covers (34).

5. The high-efficiency water-filtration performance pulping machine mesh cage according to claim 2, characterized in that: The reverse differential rotation assembly also includes a motor (4) arranged above the fan (3); a first transmission wheel (41) is installed at the output end of the motor (4); a second transmission wheel (42) is arranged above the first transmission wheel (41); a transmission belt (43) is wrapped around the first transmission wheel (41) and the second transmission wheel (42); one end of the exhaust pipe (44) extends through the mesh cage (1) and is fixedly installed on one side of the second transmission wheel (42); and a terminal end of the exhaust pipe (35) is rotatably installed on the other side of the second transmission wheel (42) and is connected to the inner cavity of the exhaust pipe (44).

6. A high efficiency water filtration performance pulping machine mesh cage according to claim 5, characterized in that: A pinion (45) is fixedly mounted on the side of the first transmission wheel (41) away from the motor (4) and meshes with the gear ring (11).

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