Rotary drum grille device

Abstract

The present invention provides a rotary drum grille device, comprising: an impurity interception system. In the impurity interception system, the interception structure includes two grille drums. Each grille drum includes a plurality of interception bars. The plurality of interception bars are parallel to each other and are connected by a plurality of longitudinal connecting ribs. The direction of the longitudinal connecting ribs is perpendicular to the direction of the interception bars. There is a grid gap with a first width between the plurality of interception bars. The central axis of the grille drum from the water inlet end direction to the slag discharge end direction forms a first angle with the direction of the longitudinal connecting ribs. The two central axes of the two grille drums intersect, and the included angle is a second angle. The first angle is an acute angle, and the second angle is twice the first angle. There is an interlaced part between the two grille drums from the water inlet end to the slag discharge end. The interception bars of the two grille drums are fitted to each other in the interlaced part of the two grille drums.

Description

Technical Field

[0001] The present invention relates to the technical field of water pollution control and treatment, and particularly relates to a rotary drum type grille device. Background Art

[0002] Currently, the wastewater in the production and manufacturing processes such as breeding, slaughtering, and food is basically pretreated through grilles and filters. However, due to the wide range of particle sizes and high content of impurities in such wastewater, it is easy to block the grid gaps or filter screens, and it is not easy to clean and easy to remain relying entirely on gravity shedding. Usually, another water source needs to be prepared to frequently backwash the grille, or scrape it with a brush or a steel brush. The low working efficiency, easy blockage, large volume, inconvenient cleaning, and harsh environment during cleaning of grilles and filters are problems that need to be urgently solved in the sewage treatment process. Summary of the Invention

[0003] (I) Technical Solution

[0004] In view of this, in order to overcome at least one of the above problems, an embodiment of the present invention provides a rotary drum type grille device, including: an impurity interception system, including an interception structure; wherein, the interception structure includes a first grille rotary drum 16 and a second grille rotary drum 17, each grille rotary drum includes a plurality of interception grid bars, the plurality of interception grid bars are parallel to each other and are connected by a plurality of longitudinal connecting ribs, the direction of the longitudinal connecting ribs is perpendicular to the direction of the interception grid bars, and there is a grid gap with a first width between the plurality of interception grid bars; the central axes of the first grille rotary drum 16 and the second grille rotary drum 17 from the water inlet end direction to the slag outlet end direction form a first angle with the direction of the longitudinal connecting ribs, the two central axes of the first grille rotary drum 16 and the second grille rotary drum 17 intersect, and the included angle is a second angle, the first angle is an acute angle, the second angle is twice the first angle, and there is an interlaced part between the first grille rotary drum 16 and the second grille rotary drum 17 from the water inlet end to the slag outlet end, and the interception grid bars of the first grille rotary drum 16 and the second grille rotary drum 17 are mutually engaged in the interlaced part of the first grille rotary drum 16 and the second grille rotary drum 17.

[0005] Optionally, the shapes of the plurality of interception grid bars include circular shapes, and the first width is the same as the width of the interception grid bars.

[0006] Optionally, the impurity interception system further includes: a first front support structure, arranged at the water inlet end of the first grille rotary drum 16, and a second front support structure, arranged at the water inlet end of the second grille rotary drum 17, wherein, each front support structure includes: front grid bars, parallel to the interception grid bars and connected to the plurality of interception grid bars by a plurality of longitudinal connecting ribs, the shapes of the front grid bars include circular shapes, and the width of the front grid bars is greater than the first width; front support bars, the number of the front support bars is 3, connected to the inner wall of the front grid bars and evenly distributed angularly.

[0007] Optionally, the water inlet system includes: a first water inlet pipe 8 and a first water distributor 10, which are connected to the first front support structure; a second water inlet pipe 9 and a second water distributor 11, which are connected to the second front support structure; wherein each water inlet pipe includes a first water inlet part and a second water inlet part, the first water inlet part and the second water inlet part are connected, the first water inlet part includes a cylindrical structure, and the second water inlet part is integrally arranged inside the water distributor and includes a first semi-cylindrical structure, and the first semi-cylindrical structure is obtained by cutting off the half cylinder far from the ground along a plane parallel to the ground from a cylindrical structure parallel to the ground; each water distribution pipe includes a second semi-cylindrical structure, and the second semi-cylindrical structure is obtained by cutting off the half cylinder close to the ground along a plane parallel to the ground from a cylindrical structure parallel to the ground.

[0008] Optionally, the mechanical power system includes a motor base 1, a motor reducer unit 2, a transmission wheel 3, a first transmission chain 4, a second transmission chain 5, a first rotary drum gear 6 and a second rotary drum gear 7; wherein the motor reducer unit 2 is arranged at the end of the motor base 1 far from the ground and is connected to the transmission wheel 3, the transmission wheel 3 is connected with the first transmission chain 4 and the second transmission chain 5, the first transmission chain 4 is connected to the first rotary drum gear 6, the second transmission chain 5 is connected to the second rotary drum gear 7, the first rotary drum gear 6 is arranged on the first grille rotary drum 16, and the second rotary drum gear 7 is arranged on the second grille rotary drum 17.

[0009] Optionally, the rotary drum type grille device further includes a water collection system, which includes a water collection cover 20 and a water collection pipe 21, the water collection pipe 21 is connected to the water collection cover 20, and the water collection cover 20 is arranged at one end of the first grille rotary drum 16 and the second grille rotary drum 17 close to the ground.

[0010] Optionally, the impurity interception system further includes: a first rear support structure, which is arranged at the slag discharge end of the first grille rotary drum 16, and a second rear support structure, which is arranged at the slag discharge end of the second grille rotary drum 17, wherein each rear support structure includes: rear grid bars, which are parallel to the interception grid bars and are connected to a plurality of interception grid bars through a plurality of longitudinal connecting ribs, the shape of the rear grid bars includes a circle, and the width of the rear grid bars is greater than the first width; rear support bars, the number of the rear support bars is 3, which are connected to the inner wall of the rear grid bars and are evenly distributed angularly.

[0011] Optionally, the impurity interception system further includes a bottom support structure, which includes 4 rotary drum drag wheels, and the shape of the rotary drum drag wheels includes a cylinder, wherein 2 rotary drum drag wheels are respectively arranged at the bottoms of the first grille rotary drum 16 and the second grille rotary drum 17 close to the ground.

[0012] Optionally, the shapes of the first grille rotary drum 16 and the second grille rotary drum 17 include a cone and gradually become narrower in the direction from the rear support structure to the front support structure.

[0013] Optionally, the materials of the first grille drum 16 and the second grille drum 17 include stainless steel.

[0014] (II) Beneficial effects

[0015] The present invention designs a drum-type grille device. By setting the intercepting bars of two grille drums to repeatedly bite and rotate during operation, it can effectively prevent the clogging of the grille gaps, without the need for additional cleaning methods, reducing labor consumption and improving the operating efficiency of the equipment. The present invention can be widely applied to the solid-liquid separation in the pretreatment of high-impurity wastewater in the fields of aquaculture, slaughtering, and food processing. Description of the drawings

[0016] Figure 1 Schematically shows a schematic diagram of a drum-type grille device provided by an embodiment of the present invention.

[0017] Figure 2 Schematically shows a schematic diagram of a front support structure provided by an embodiment of the present invention. Detailed implementation manners

[0018] To make the objectives, technical solutions, and advantages of the present invention clearer, the following further elaborates on the present invention in detail with reference to the accompanying drawings and specific embodiments.

[0019] The structural embodiments and method descriptions of the present invention are disclosed herein. It should be understood that this is not intended to limit the present invention to the specifically disclosed embodiments, and the present invention can be implemented by using other features, elements, methods, and embodiments. Similar elements in different embodiments are usually marked with similar numbers.

[0020] Figure 1 Schematically shows a schematic diagram of a drum-type grille device provided by an embodiment of the present invention.

[0021] As Figure 1 shown, the drum-type grille device includes an intercepting structure for filtering impurities in water. The intercepting structure includes a first grille drum 16 and a second grille drum 17. Each grille drum includes a plurality of intercepting bars. The plurality of intercepting bars are parallel to each other and are connected by a plurality of longitudinal connecting ribs such as a first longitudinal connecting rib 18 and a second longitudinal connecting rib 19. The direction of the longitudinal connecting ribs is perpendicular to the direction of the intercepting bars.

[0022] In this embodiment, there is a grid gap with a first width between the multiple intercepting grid bars, and the first width is the same as the width of the intercepting grid bars. The central axis of the grid drum from the water inlet end to the slag outlet end forms a first angle with the direction of the longitudinal connecting ribs. The central axes of the two grid drums intersect, and the included angle is a second angle. The first angle is an acute angle, and the second angle is twice the first angle. From the water inlet end to the slag outlet end between the two grid drums, there are interlaced parts, and the intercepting grid bars of the two grid drums are mutually engaged in the interlaced parts of the two grid drums.

[0023] In this embodiment, the shapes of the multiple intercepting grid bars include circular shapes, and the width of the grid gap is the same as the width of the intercepting grid bars. For impurities with more fibers, the density of the longitudinal connecting ribs can be increased to improve the impurity interception effect.

[0024] In this embodiment, the materials of the two grid drums include stainless steel, so as to ensure that the two grid drums have good corrosion resistance. The width of the fitting part of the two drum grids and the included angle of the drum centers can be adjusted according to the diameters of the water inlet end and the slag outlet end according to actual process requirements.

[0025] In this embodiment, during the operation of the two grid drums, the multiple intercepting grid bars repeatedly bite and rotate, preventing the grid from being blocked. During use, the grid slag can be removed, ensuring the water passing capacity of the impurity interception system, reducing the labor consumed during cleaning, and ensuring the work efficiency.

[0026] In this embodiment, the rotary drum type grid device further includes a mechanical power system for providing power to the two grid drums, including a motor base 1, a motor reduction unit 2, a transmission wheel 3, a first transmission chain 4 and a second transmission chain 5, a first drum gear 6 and a second drum gear 7.

[0027] In this embodiment, the motor reduction unit 2 is arranged at one end of the motor base 1 away from the ground and is connected to the transmission wheel 3. The transmission wheel 3 is connected with a first transmission chain 4 and a second transmission chain 5. The first transmission chain 4 is connected to the first drum gear 6, and the second transmission chain 5 is connected to the second drum gear 7. The first drum gear 6 is arranged on the first grid drum 16, and the second drum gear 7 is arranged on the second grid drum 17.

[0028] In this embodiment, the rotary drum type grid device further includes a water inlet system, which includes a first water inlet pipe 8 and a second water inlet pipe 9, a first water distributor 10 and a second water distributor 11.

[0029] In this embodiment, each water inlet pipe includes a first water inlet portion and a second water inlet portion. The first water inlet portion and the second water inlet portion are connected. The first water inlet portion includes a cylindrical structure. The second water inlet portion is disposed entirely inside the water distributor and includes a first semi-cylindrical structure. The first semi-cylindrical structure is formed by cutting off the upper half cylinder of a cylinder parallel to the ground along a plane parallel to the ground. Each water distribution pipe includes a second semi-cylindrical structure. The second semi-cylindrical structure is formed by cutting off the lower half cylinder of a cylinder parallel to the ground along a plane parallel to the ground.

[0030] In this embodiment, water flow can completely enter the water distribution pipe from the water inlet pipe and be refracted onto the side baffle and the front baffle of the water distributor, so as to evenly flow into the grille rotating drum, and further enable the water distribution to be uniform and rapid, improving the water purification efficiency.

[0031] In this embodiment, the impurity interception system further includes two front support structures disposed at the water inlet ends of the two grille rotating drums.

[0032] Figure 2 Schematically shows a schematic diagram of a front support structure provided by an embodiment of the present invention.

[0033] As Figure 2 shown, the impurity interception system includes a first front support structure and a second front support structure.

[0034] In this embodiment, the first support structure is disposed at the water inlet end of the first grille rotating drum 16 and includes: a first front grille bar, parallel to the interception grille bar and connected to the plurality of interception grille bars through a plurality of longitudinal connecting ribs. The shape of the first front grille bar includes a circle, and the width of the first front grille bar is greater than the width of the interception grille bar; three first front support bars 14, connected to the inner wall of the first front grille bar and evenly distributed angularly. The first water inlet pipe 8 and the first rotating drum gear 6 are disposed at the central part where the three first front support bars are connected to each other.

[0035] In this embodiment, the second support structure is disposed at the water inlet end of the second grille rotating drum 17 and includes: a second front grille bar, parallel to the interception grille bar and connected to the plurality of interception grille bars through a plurality of longitudinal connecting ribs. The shape of the second grille bar includes a circle, and the width of the second front grille bar is greater than the width of the interception grille bar; three second front support bars 15, connected to the inner wall of the second front grille bar and evenly distributed angularly. The second water inlet pipe 9 and the second rotating drum gear 7 are disposed at the central part where the three second front support bars are connected to each other.

[0036] In this embodiment, the impurity interception system further includes a bottom support structure for supporting two grille drums. The bottom support structure includes: a first drum idler group 12, including two cylindrical drum idlers, arranged at the bottom of the first grille drum 16 close to the ground for supporting the first grille drum 16; a first drum idler group 13, including two cylindrical drum idlers, arranged at the bottom of the second grille drum 17 close to the ground for supporting the second grille drum 17.

[0037] Return Figure 1 , the rotary grille device further includes a water collection system. The water collection system includes a water collection cover 20 and a water collection pipe 21. The water collection pipe 21 is connected to the water collection cover 20. The water collection cover 20 is arranged at the bottom of the two grille drums close to the ground for collecting the water filtered by the impurity interception system.

[0038] In this embodiment, the rotary grille device further includes two rear support structures. Among them, the first rear support structure is arranged at the slag discharging end of the first grille drum 16 and includes: a first rear grille bar 22, the shape of the first rear grille bar 22 includes a circle, and the width is greater than the width of the interception grille bar; a first rear support bar, the number of the first rear support bars is 3, connected to the inner wall of the first rear grille bar 22 and evenly distributed angularly.

[0039] The second rear support structure is arranged at the slag discharging end of the second grille drum 17 and includes: a second rear grille bar 23, the shape of the second rear grille bar 23 includes a circle, and the width is greater than the width of the interception grille bar; a second rear support bar, the number of the second rear support bars is 3, connected to the inner wall of the second rear grille bar 23 and evenly distributed angularly.

[0040] In this embodiment, the shape of each grille drum as a whole includes a cone and gradually narrows in the direction from the rear support structure to the front support structure, so as to ensure that the water inlet end to the slag discharging end gradually widens, and automatic slag guiding can be realized.

[0041] The above specific embodiments have further elaborated on the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A rotary drum grille device, characterized in that, Comprising: An impurity interception system, including an interception structure, wherein, The interception structure includes a first grille drum (16) and a second grille drum (17). The first grille drum (16) and the second grille drum (17) include a plurality of interception bars. The plurality of interception bars are parallel to each other and are connected by a plurality of longitudinal connecting ribs. The direction of the longitudinal connecting ribs is perpendicular to the direction of the interception bars. There is a grid gap with a first width between the plurality of interception bars; The central axes of the first grille drum (16) and the second grille drum (17) from the water inlet end direction to the slag discharge end direction form a first angle with the direction of the longitudinal connecting ribs. The two central axes of the first grille drum (16) and the second grille drum (17) intersect, and the included angle is a second angle. The first angle is an acute angle, and the second angle is twice the first angle. There is an interlaced part between the first grille drum (16) and the second grille drum (17) from the water inlet end to the slag discharge end. The interception bars of the first grille drum (16) and the second grille drum (17) are fitted to each other at the interlaced part of the first grille drum (16) and the second grille drum (17); The shapes of the first grille drum (16) and the second grille drum (17) include cones and gradually narrow from the slag discharge end to the water inlet end to achieve automatic slag guiding.

2. The device according to claim 1, characterized in that, The shapes of the plurality of interception bars include circles, and the first width is the same as the width of the interception bars.

3. The device according to claim 1, characterized in that, The impurity interception system further includes: A first front support structure is arranged at the water inlet end of the first grille drum (16), and a second front support structure is arranged at the water inlet end of the second grille drum (17). Among them, the first front support structure and the second front support structure respectively include: Front bars, parallel to the interception bars and connected to the plurality of interception bars by a plurality of longitudinal connecting ribs. The shapes of the front bars include circles, and the width of the front bars is greater than the first width; Front support bars, the number of the front support bars is 3, which are connected to the inner wall of the front bars and are evenly distributed angularly.

4. The device according to claim 1, characterized in that, It further includes: A water inlet system, including: a first water inlet pipe (8) and a first water distributor (10), which are connected to the first front support structure; A second water inlet pipe (9) and a second water distributor (11), which are connected to the second front support structure; Among them, the first water inlet pipe (8) and the second water inlet pipe (9) respectively include a first water inlet part and a second water inlet part. The first water inlet part and the second water inlet part are connected. The first water inlet part includes a cylindrical structure, and the second water inlet part includes a first semi-cylindrical structure, which is obtained by cutting off the half cylinder far from the ground along a plane parallel to the ground from a cylindrical structure parallel to the ground. The first water distributor (10) and the second water distributor (11) are both of a second semi-cylindrical structure, and are respectively arranged on the overall outer sides of the second water inlet parts of the first water inlet pipe (8) and the second water inlet pipe (9). The second semi-cylindrical structure is obtained by cutting off half of the cylinder close to the ground along a plane parallel to the ground from a cylinder structure parallel to the ground.

5. The device according to claim 1, characterized in that, It further includes a mechanical power system, including a motor base (1), a motor reduction unit (2), a transmission wheel (3), a first transmission chain (4), a second transmission chain (5), a first drum gear (6), and a second drum gear (7); Wherein, the motor reduction unit (2) is arranged at one end of the motor base (1) away from the ground and is connected to the transmission wheel (3). The transmission wheel (3) is connected to a first transmission chain (4) and a second transmission chain (5). The first transmission chain (4) is connected to the first drum gear (6), and the second transmission chain (5) is connected to the second drum gear (7). The first drum gear (6) is arranged on the first grille drum (16), and the second drum gear (7) is arranged on the second grille drum (17).

6. The device according to claim 1, characterized in that, It also includes: a water collection system, including a water collection cover (20) and a water collection pipe (21). The water collection pipe (21) is connected to the water collection cover (20), and the water collection cover (20) is arranged at one end of the first grille drum (16) and the second grille drum (17) close to the ground.

7. The device according to claim 1, the impurity interception system further includes: A first rear support structure is arranged at the slag discharge end of the first grille drum (16), and a second rear support structure is arranged at the slag discharge end of the second grille drum (17). Among them, each of the first rear support structure and the second rear support structure includes: Rear grid bars, parallel to the intercepting grid bars and connected to the multiple intercepting grid bars through a plurality of longitudinal connecting ribs. The shape of the rear grid bars includes a circle, and the width of the rear grid bars is greater than the first width; Rear support bars, the number of the rear support bars is 3, connected to the inner wall of the rear grid bars, and evenly distributed angularly.

8. The device according to claim 1, the impurity interception system further includes: A bottom support structure includes 4 drum rollers. The shape of the drum rollers includes a cylinder. Among them, 2 of the drum rollers are respectively arranged at the bottoms of the first grille drum (16) and the second grille drum (17) close to the ground.

9. The device according to claim 1, characterized in that, The materials of the first grille drum (16) and the second grille drum (17) include stainless steel.

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