Sludge screening device

Abstract

The sludge screening device comprises a swing frame, a screening box, a feeding port, a cleaning port and a collecting box, the two sides of the screening box are fixedly connected with the two sides of the inner wall of the swing frame, the feeding port is formed in the top of the screening box, and the cleaning port is formed in the rear side of the top of the screening box; the bottom of the collecting box is slidably connected with the bottom of the inner wall of the swing frame. According to the utility model, through the arrangement of the first sticking roller and the second sticking roller, before dewatered cake-shaped sludge blocks are put into the screening box, the first sticking roller and the second sticking roller are driven to rotate through the driving mechanism, then sludge cakes are put into the hopper, and the sludge cakes are crushed through the first sticking roller and the second sticking roller; the problem that the effect of screening particle impurities mixed in sludge cakes is low due to the fact that the sludge is generally in a cake shape but in a crushed shape after being dewatered, but the sludge cakes are not easy to smash due to the fact that the screen cloth is directly shaken through a vibration motor and the screening box is directly shaken back and forth through an electric push rod is solved, and the effect of improving the screening efficiency is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge screening, in particular to a sludge screening device. Background Art

[0002] After the sludge is dehydrated, a screening device is needed to screen out other particulate impurities in the sludge to facilitate the recycling of the sludge.

[0003] For example, the application number is CN202320477917.5. The utility model discloses a sludge screening device, and the key points of its technical solution are: it includes a placing plate, a collecting box is provided on the top surface of the placing plate, and a positioning frame is provided on the top surface of the placing plate; a screening box, the screening box is arranged inside the positioning frame, and a feeding hole is opened on the top surface of the screening box; a screening component, the screening component is arranged inside the screening box, and can screen the sludge. By setting the screening box, when the staff feeds the sludge to be screened into the interior of the screening box through the feeding hole, a vibration motor is set. When the vibration motor drives the screen to vibrate through the fixed frame, the screen can screen the sludge, and the collecting box can collect the screened sludge at the same time. By setting the positioning block, since the positioning block and the positioning groove are movably sleeved together, it is convenient to position the collecting box and at the same time, it is convenient to pour out the screened sludge inside the collecting box.

[0004] Based on the search of the above patents and in combination with the equipment in the prior art, it was found that when the above equipment is used, although it can solve the problem that the collecting frame and the screening frame are connected together by the guide vertical rod, it is not convenient to completely pour out the sludge collected inside the collecting frame after the collecting frame collects the sludge. However, during use, the sludge is usually in the form of cakes and crushed after dehydration. However, it is not easy to break up the sludge cake by directly shaking the screen with a vibration motor and shaking the screening box back and forth with an electric push rod, so the screening effect of the particulate impurities contained in the sludge cake is low. Utility Model Content

[0005] In order to solve the problems raised in the above-mentioned background technology, the purpose of the present invention is to provide a sludge screening device, which has the advantage of improving screening efficiency and solves the problem that the sludge is usually in cake and lumpy form after dehydration processing, but it is not easy to break up the sludge cake by directly shaking the screen with a vibration motor and shaking the screening box back and forth with an electric push rod, thereby having a low screening effect on particulate impurities contained in the sludge cake.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a sludge screening device, comprising a swing frame, a screening box, a feed port, a cleaning port and a collecting box, the two sides of the screening box are fixedly connected to the two sides of the inner wall of the swing frame, the feed port is opened at the top of the screening box, the cleaning port is opened at the rear side of the top of the screening box, the bottom of the collecting box is slidably connected to the bottom of the inner wall of the swing frame, the top of the screening box is fixedly connected to a hopper, the hopper and the screening box are connected through the feed port, a first sticky roller is provided on the front side of the inside of the hopper, a second sticky roller is provided on the rear side of the inside of the hopper, both sides of the first sticky roller and the second sticky roller pass through the top of both sides of the hopper, and the front side of the left side of the hopper is fixedly connected to a driving mechanism.

[0007] As a preferred embodiment of the present invention, the driving mechanism includes a support frame, the right side of the support frame is fixedly connected to the front side of the left side of the hopper, the top of the support frame is fixedly connected to a motor, the output end of the motor is fixedly connected to the left side of the first sticky roller, the right side of the first sticky roller is fixedly connected to a first gear, the right side of the second sticky roller is fixedly connected to a second gear, and the first gear is meshed with the second gear.

[0008] As a preferred embodiment of the present invention, the front and rear sides of the top of both sides of the hopper are provided with installation grooves, the inner walls of the installation grooves are movably connected with bearings, and both ends of the surfaces of the first and second sticky rollers are movably connected to the inner walls of the bearings.

[0009] As a preferred embodiment of the present invention, a filter plate is provided at the bottom of the first sticking roller, and the surface of the filter plate is fixedly connected to the inner wall of the hopper.

[0010] As a preferred embodiment of the present invention, a notch is provided on the front of the hopper, the inner wall of the notch is communicated with the inner wall of the hopper, a collecting frame is fixedly connected to the front side of the top of the screening box, and the filter plate is arranged at an angle.

[0011] As a preferred embodiment of the present invention, a triangular rod is provided inside the screening box, and two sides of the triangular rod are fixedly connected to two sides of the inner wall of the screening box.

[0012] As a preferred embodiment of the present invention, a protective cover is fixedly connected to the top of the right side of the hopper, and the first gear and the second gear are both located inside the protective cover.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. The utility model provides a first sticky roller and a second sticky roller. Before the dehydrated sludge cake is placed into the screening box, the first sticky roller and the second sticky roller are first driven to rotate by a driving mechanism. Then the sludge cake is first placed into the hopper and crushed by the first sticky roller and the second sticky roller. This solves the problem that the sludge is usually in cake and lumps after dehydration and is crushed. However, the sludge cake is not easily broken up by directly shaking the screen by a vibration motor and shaking the screening box back and forth by an electric push rod, thereby having a low screening effect on particulate impurities mixed in the sludge cake. This achieves the effect of improving screening efficiency.

[0015] 2. The utility model is provided with a driving mechanism. When the user needs to drive the first sticky roller and the second sticky roller to rotate symmetrically so as to crush the sludge cake entering the hopper, the motor is started, and the first sticky roller is rotated by the motor first, and the first gear is driven to rotate. Then, the second sticky roller is rotated in a symmetrical direction with the first sticky roller through the meshing transmission of the first gear and the second gear, and finally the sludge cake falling between the first sticky roller and the second sticky roller is crushed into particles.

[0016] 3. The utility model provides a mounting groove and a bearing. During the symmetrical rotation of the first sticky roller and the second sticky roller, the bearing in the mounting groove rotates along with the rotation of the first sticky roller and the second sticky roller. The bearing then provides a stable and smooth rotation axis point for the first sticky roller and the second sticky roller, thereby improving the stability of the symmetrical rotation of the first sticky roller and the second sticky roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is an exploded schematic diagram of the parts of the screening box of the utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the screening box of the present invention.

[0020] In the figure: 1. Swing frame; 2. Screening box; 3. Feed port; 4. Cleaning port; 5. Collection box; 6. Hopper; 7. First sticky roller; 8. Second sticky roller; 9. Driving mechanism; 91. Support frame; 92. Motor; 93. First gear; 94. Second gear; 10. Mounting slot; 11. Bearing; 12. Filter plate; 13. Notch; 14. Collection frame; 15. Triangular rod; 16. Protective cover. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figures 1 to 3 As shown, the utility model provides a sludge screening device, including a swing frame 1, a screening box 2, a feed port 3, a cleaning port 4 and a collecting box 5. The two sides of the screening box 2 are fixedly connected to the two sides of the inner wall of the swing frame 1, the feed port 3 is opened at the top of the screening box 2, and the cleaning port 4 is opened on the rear side of the top of the screening box 2. The bottom of the collecting box 5 is slidably connected to the bottom of the inner wall of the swing frame 1. The top of the screening box 2 is fixedly connected to the hopper 6, and the hopper 6 is connected to the screening box 2 through the feed port 3. A first sticky roller 7 is provided on the front side of the inside of the hopper 6, and a second sticky roller 8 is provided on the rear side of the inside of the hopper 6. Both sides of the first sticky roller 7 and the second sticky roller 8 pass through the top of both sides of the hopper 6, and the front side of the left side of the hopper 6 is fixedly connected to a driving mechanism 9.

[0023] refer to Figure 1 and Figure 2 The driving mechanism 9 includes a support frame 91, the right side of the support frame 91 is fixedly connected to the front side of the left side of the hopper 6, the top of the support frame 91 is fixedly connected to a motor 92, the output end of the motor 92 is fixedly connected to the left side of the first sticky roller 7, the right side of the first sticky roller 7 is fixedly connected to a first gear 93, the right side of the second sticky roller 8 is fixedly connected to a second gear 94, and the first gear 93 is meshed with the second gear 94.

[0024] As a technical optimization solution of the present invention, by setting a driving mechanism 9, when the user needs to drive the first sticky roller 7 and the second sticky roller 8 to rotate symmetrically so as to crush the sludge cake entering the hopper 6, the motor 92 is started, and the first sticky roller 7 is rotated by the motor 92 first, and the first gear 93 is driven to rotate, and then the second gear 93 and the second gear 94 are engaged and driven, so that the second sticky roller 8 rotates in a symmetrical direction with the first sticky roller 7, and finally the sludge cake that falls between the first sticky roller 7 and the second sticky roller 8 is crushed into particles.

[0025] refer to Figure 2 The front and rear sides of the top of both sides of the hopper 6 are provided with mounting grooves 10, and the inner walls of the mounting grooves 10 are movably connected with bearings 11, and both ends of the surfaces of the first sticky roller 7 and the second sticky roller 8 are movably connected to the inner walls of the bearings 11.

[0026] As a technical optimization solution of the present invention, by providing the mounting groove 10 and the bearing 11, during the symmetrical rotation of the first sticky roller 7 and the second sticky roller 8, the bearing 11 in the mounting groove 10 rotates together with the rotation of the first sticky roller 7 and the second sticky roller 8, and then the bearing 11 provides the first sticky roller 7 and the second sticky roller 8 with a stable and smooth rotation axis point, thereby improving the stability of the first sticky roller 7 and the second sticky roller 8 during symmetrical rotation.

[0027] refer to Figure 3 A filter plate 12 is provided at the bottom of the first sticky roller 7 , and the surface of the filter plate 12 is fixedly connected to the inner wall of the hopper 6 .

[0028] As a technical optimization solution of the present invention, by setting the filter plate 12, before the sludge cake passes through the symmetrical rotation of the first sticky roller 7 and the second sticky roller 8 and is crushed into particles and falls into the screening box 2 through the feed port 3, the small particles in the sludge cake fragments will directly pass through the filter plate 12, while the larger particles of the sludge cake fragments will be intercepted by the filter plate 12, thereby facilitating the subsequent screening of impurities in the sludge block by the screening box 2, thereby improving the work efficiency of the user.

[0029] refer to Figure 1 and Figure 3 A notch 13 is provided on the front of the hopper 6, the inner wall of the notch 13 is connected to the inner wall of the hopper 6, a collecting frame 14 is fixedly connected to the front side of the top of the screening box 2, and the filter plate 12 is arranged obliquely.

[0030] As a technical optimization solution of the present invention, by providing the notch 13 and the collecting frame 14, after the larger sludge cake fragments are intercepted by the filter plate 12, the larger sludge cake fragments are first made to slide toward the notch 13 through the inclined setting of the filter plate 12, and then discharged from the hopper 6 through the notch 13 and fall into the collecting frame 14, thereby facilitating the user to perform secondary processing on the large-particle sludge cake fragments, and ultimately improving the user's operation convenience.

[0031] refer to Figure 2 A triangular rod 15 is provided inside the screening box 2 , and both sides of the triangular rod 15 are fixedly connected to both sides of the inner wall of the screening box 2 .

[0032] As a technical optimization solution of the present invention, by setting the triangular rod 15, when the sludge cake fragments enter the screening from the hopper 6 through the feed port 3, the sludge cake fragments will first contact the triangular rod 15, and then the triangular shape of the triangular rod 15 will guide the sludge cake fragments to accumulate on both sides of the screening box 2, thereby preventing the sludge cake fragments from mainly accumulating in the middle of the screening box 2 and reducing the utilization rate of the storage space of the screening box 2.

[0033] refer to Figure 1 and Figure 2A protective cover 16 is fixedly connected to the top of the right side of the hopper 6 , and the first gear 93 and the second gear 94 are both located inside the protective cover 16 .

[0034] As a technical optimization solution of the present invention, a protective cover 16 is provided to cover the first gear 93 and the second gear 94, thereby preventing the sludge cake fragments from splashing onto the first gear 93 and the second gear 94 during the process of crushing the sludge cake by the first sticky roller 7 and the second sticky roller 8, thereby increasing the friction force when the first gear 93 and the second gear 94 are transmitted, thereby improving the service life of the first gear 93 and the second gear 94.

[0035] The working principle and use process of the present invention are as follows: when in use, before the dehydrated cake-shaped sludge block is placed into the screening box 2, the motor 92 is first started, and the first sticky roller 7 is rotated by the motor 92, and the first gear 93 is driven to rotate, and then the second sticky roller 8 is rotated in a symmetrical direction with the first sticky roller 7 through the meshing transmission of the first gear 93 and the second gear 94. At the same time, the bearing 11 in the mounting groove 10 rotates together with the rotation of the first sticky roller 7 and the second sticky roller 8, providing a stable and smooth rotation axis point for the first sticky roller 7 and the second sticky roller 8. Then the sludge cake block can be placed in the hopper 6 so that the sludge cake block is crushed. The sludge is crushed into particles, and then the sludge particles are first screened by the filter plate 12. The small particles fall into the screening box 2, and the large particles take advantage of the inclined setting of the filter plate 12 to slide into the collection frame 14 through the slot 13 for secondary processing. After that, when the amount of sludge blocks in the screening box 2 reaches an appropriate amount, the crushing of the sludge blocks is stopped, and then the screening box 2 is started to generate vibration force, and then the swing frame 1 is used to drive the screening box 2 to move left and right, so that the pure sludge falls into the collection box 5, and the impurities in the sludge remain in the screening box 2. Finally, the impurities left in the screening box 2 can be cleaned out through the cleaning port 4, thereby having the advantage of improving screening efficiency.

[0036] In summary, the sludge screening device is provided with a first sticky roller 7 and a second sticky roller 8. Before the dehydrated cake-shaped sludge block is placed into the screening box 2, the first sticky roller 7 and the second sticky roller 8 are first driven to rotate by the driving mechanism 9. Then the sludge cake is first placed into the hopper 6 and crushed by the first sticky roller 7 and the second sticky roller 8. This solves the problem that the sludge is usually in cake-like and crushed shape after dehydration processing, while it is not easy to break the sludge cake by directly shaking the screen by the vibration motor and the electric push rod to shake the screening box back and forth, thereby having a low screening effect on particulate impurities contained in the sludge cake, thereby achieving the effect of improving the screening efficiency.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sludge screening device, comprising a swing frame (1), a screening box (2), a feed port (3), a cleaning port (4) and a collection box (5), characterized in that: The two sides of the screening box (2) are fixedly connected to the two sides of the inner wall of the swing frame (1), the feed port (3) is opened at the top of the screening box (2), the cleaning port (4) is opened at the rear side of the top of the screening box (2), the bottom of the collecting box (5) is slidably connected to the bottom of the inner wall of the swing frame (1), the top of the screening box (2) is fixedly connected to a hopper (6), the hopper (6) and the screening box (2) are connected through the feed port (3), a first sticky roller (7) is provided on the front side of the interior of the hopper (6), a second sticky roller (8) is provided on the rear side of the interior of the hopper (6), both sides of the first sticky roller (7) and the second sticky roller (8) are extended to the top of both sides of the hopper (6), and a driving mechanism (9) is fixedly connected to the front side of the left side of the hopper (6).

2. A sludge screening device according to claim 1, characterized in that: The driving mechanism (9) comprises a support frame (91), the right side of the support frame (91) is fixedly connected to the front side of the left side of the hopper (6), the top of the support frame (91) is fixedly connected to a motor (92), the output end of the motor (92) is fixedly connected to the left side of the first sticking roller (7), the right side of the first sticking roller (7) is fixedly connected to a first gear (93), the right side of the second sticking roller (8) is fixedly connected to a second gear (94), and the first gear (93) is meshed with the second gear (94).

3. The sludge screening device according to claim 1, characterized in that: The front and rear sides of the tops of both sides of the hopper (6) are provided with mounting grooves (10), the inner walls of the mounting grooves (10) are movably connected to bearings (11), and both ends of the surfaces of the first sticky roller (7) and the second sticky roller (8) are movably connected to the inner walls of the bearings (11).

4. The sludge screening device according to claim 1, characterized in that: A filter plate (12) is provided at the bottom of the first sticky roller (7), and the surface of the filter plate (12) is fixedly connected to the inner wall of the hopper (6).

5. A sludge screening device according to claim 4, characterized in that: A notch (13) is provided on the front of the hopper (6), and the inner wall of the notch (13) is connected to the inner wall of the hopper (6). A collecting frame (14) is fixedly connected to the front side of the top of the screening box (2), and the filter plate (12) is arranged at an angle.

6. The sludge screening device according to claim 1, characterized in that: A triangular rod (15) is provided inside the screening box (2), and two sides of the triangular rod (15) are fixedly connected to two sides of the inner wall of the screening box (2).

7. The sludge screening device according to claim 2, characterized in that: A protective cover (16) is fixedly connected to the top of the right side of the hopper (6), and the first gear (93) and the second gear (94) are both located inside the protective cover (16).

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