A front-end garbage screening treatment device suitable for dredging engineering

Abstract

A front-end garbage screening treatment device suitable for dredging engineering, comprising a box body, a driving mechanism, a screen cylinder and a cleaning mechanism; the outer wall of the screen cylinder is fixed with an annular guide rail at both ends, the surface of the screen cylinder is provided with a plurality of screen holes, and the screen cylinder is provided with a spiral guide plate inside; the cleaning mechanism comprises a second support frame and a connecting rod, and the second support frame is fixed on the first support frame; the connecting rod comprises a first section, one end of the first section is provided with a rotatable eccentric roller, the other end of the first section is obliquely extended with a second section, the second section is provided with a connecting plate away from one end of the first section, and a plurality of impact heads corresponding to the screen holes are arranged on the side close to the screen cylinder of the connecting plate; the first section is rotatably connected to the second support frame through a rotating shaft close to one end of the second section, one end of an elastic member is fixedly connected to the top of the second support frame, and the other end of the elastic member is fixedly connected to the middle of the second section. The application can quickly clean the mud block blocking the screen hole through the cleaning mechanism, so that the screen cylinder can maintain a high screening efficiency.

Description

Technical Field

[0001] This application relates to the field of dredging sludge screening technology, and in particular to a front-end waste screening and processing device suitable for dredging projects. Background Technology

[0002] Dredging mud refers to the water-containing mixture produced when cleaning sediments in waterways such as rivers, lakes, and ports. It typically contains a high proportion of water, fine particles, and contaminants. Solid impurities in dredging mud can cause wear and tear on pumps and structures used in subsequent processes. Therefore, to achieve mechanical dewatering of dredging mud and reduce the wear and damage caused by solid impurities, pretreatment of the dredging mud is necessary to separate solid impurities such as garbage and gravel.

[0003] Existing dredging slurry pretreatment screening devices are ineffective at intercepting impurities with high hardness or excessive size, which can easily lead to blockage. Furthermore, the screen holes of the screen cylinder are easily blocked by hard or slightly hard mud lumps, which reduces the efficiency of the screen cylinder.

[0004] Therefore, we propose a front-end waste screening and processing device suitable for dredging projects. Utility Model Content

[0005] In response to the shortcomings of the existing production technology, the applicant provides a front-end waste screening and processing device suitable for dredging projects, which can quickly remove mud clogging the screen holes through a cleaning mechanism, thereby maintaining a high screening efficiency of the screen cylinder.

[0006] The technical solution adopted in this application is as follows:

[0007] A front-end waste screening and processing device suitable for dredging projects, comprising:

[0008] The box has an opening at the top and a first support frame is located in the middle of the inner side of the box.

[0009] The drive mechanism includes a motor, the output shaft of which is fixedly connected to the drive shaft, and the drive shaft is provided with rollers inside the housing;

[0010] The screen cylinder has annular guide rails fixed at both ends of its outer wall, multiple screen holes on its surface, a spiral guide plate inside the screen cylinder, and the annular guide rails placed on rollers.

[0011] The cleaning mechanism includes a second support frame and a connecting rod, wherein the second support frame is fixed to the first support frame;

[0012] The connecting rod includes a first section, one end of which is equipped with a rotatable eccentric roller, and the other end of which extends obliquely to form a second section. The end of the second section away from the first section is equipped with a connecting plate, and the side of the connecting plate near the screen cylinder is equipped with multiple impact heads corresponding to the screen holes.

[0013] The first segment is rotatably connected to the second support frame via a pivot at one end near the second segment. One end of the elastic element is fixedly connected to the top of the second support frame, and the other end of the elastic element is fixedly connected to the middle of the second segment.

[0014] Its further features are:

[0015] The second support frame, connecting rod, and eccentric roller are each provided in twos, and the connecting plate is fixedly connected to the two connecting rods respectively.

[0016] The projections of the first and second segments onto the axial direction of the screen cylinder are L-shaped.

[0017] The impact head is cylindrical, and its diameter is smaller than the diameter of the sieve holes.

[0018] The impact head is made of rubber, and a compression spring is installed inside the rubber.

[0019] The cleaning mechanism is provided in two sets, which are respectively located on both sides of the screen cylinder.

[0020] The impact head is also equipped with a scraper on the outside, which is used to scrape off the mud from the outer wall of the screen cylinder.

[0021] A third support frame is provided on both sides of the roller. The third support frame is fixed on the first support frame, and the drive shaft is rotatably mounted in the third support frame, which supports the drive shaft.

[0022] The sieve cylinder includes a first conical section, a cylindrical section, a second conical section, and an outlet section arranged in sequence. Annular guide rails are fixed to both ends of the outer wall of the cylindrical section. Multiple sieve holes are provided on the surface of the cylindrical section between the two annular guide rails. Multiple sieve holes are provided on the surface of the second conical section.

[0023] A ladder is also provided on the outside of the box, and a valve body is also provided on the side wall of the box.

[0024] The beneficial effects of this application are as follows:

[0025] This application features a compact and reasonable structure and is easy to operate. The rollers drive the screen cylinder to rotate, and some of the mud falls into the box through the screen holes. Some of the harder mud lumps and garbage are lifted to a high place by the spiral guide plate as the screen cylinder rotates and then fall down. The harder mud lumps are gradually broken up, and the garbage gradually moves towards the outlet section. As the screen cylinder rotates, the garbage is discharged from the outlet section, thus completing the screening of garbage in the dredging mud.

[0026] In addition, this application also has the following advantages:

[0027] (1) As the screen cylinder rotates, the annular guide rail drives the eccentric roller to rotate, the eccentric roller drives the connecting rod to rotate along the rotating shaft, and the connecting rod drives the connecting plate and the impact head to move towards the screen cylinder, so that the impact head hits the screen cylinder, causing the mud blockage in the screen hole to be shaken down. The impact head may also hit the screen hole and knock the mud blockage into the screen cylinder. As the eccentric roller rolls relative to the annular guide rail, the connecting rod reciprocates along the rotating shaft, which causes the impact head to repeatedly hit the screen cylinder, making it easier to quickly clean the mud blockage in the screen hole and keep the screen cylinder at a high screening efficiency.

[0028] (2) The impact head is made of rubber and a compression spring is installed inside the rubber. A scraper is also installed on the outside of the impact head. The scraper can scrape off the mud on the outer wall of the screen cylinder. The impact head hits the mud in the screen cylinder or screen hole, which generates greater elasticity and facilitates the improvement of cleaning effect. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this application.

[0030] Figure 2 This is a cross-sectional schematic diagram of the sieve cylinder of this application.

[0031] Figure 3 This is a top view of the housing and drive mechanism of this application.

[0032] Figure 4 This is a schematic diagram of the screen cylinder, cleaning mechanism, rollers, etc. in this application.

[0033] Figure 5 This is a diagram illustrating the cleanup organization for this application. Figure 1 .

[0034] Figure 6 This is a diagram illustrating the cleanup organization for this application. Figure 2 .

[0035] Figure 7 This is a schematic diagram of the sieve cylinder, two cleaning mechanisms, rollers, etc. of this application.

[0036] The components include: 1. Box body; 2. Screen cylinder; 3. Cleaning mechanism;

[0037] 101. Valve body; 102. Ladder; 103. First support frame;

[0038] 201. First conical section; 202. Second conical section; 203. Cylindrical section; 204. Outlet section; 205. Screen hole; 206. Spiral guide plate; 207. Annular guide rail;

[0039] 301. Second support frame; 302. Connecting rod; 303. Eccentric roller; 304. Connecting plate; 305. Impact head; 306. Elastic element; 307. Rotating shaft;

[0040] 401. Motor; 402. Drive shaft; 403. Roller; 404. Third support frame;

[0041] 3021, First paragraph; 3022, Second paragraph. Detailed Implementation

[0042] The specific embodiments of this application are described below with reference to the accompanying drawings.

[0043] like Figures 1-7 As shown, a front-end waste screening and processing device suitable for dredging projects includes a housing 1, a screen cylinder 2, a cleaning mechanism 3, and a drive mechanism.

[0044] The top of the box 1 is open, and a first support frame 103 is provided in the middle of the inner side of the box 1.

[0045] In one embodiment, a ladder 102 is provided on the outside of the housing 1.

[0046] There are two sets of drive mechanisms, which are spaced apart.

[0047] The drive mechanism includes a motor 401, which is fixed on the outside of the housing 1. The output shaft of the motor 401 is fixedly connected to the drive shaft 402. The drive shaft 402 extends through the side wall of the housing 1 into the housing 1. A roller 403 is fixed on the drive shaft 402.

[0048] Specifically, two rollers 403 are fixed at intervals on a drive shaft 402.

[0049] Each roller 403 has a third support frame 404 on both sides. The third support frame 404 is fixed on the first support frame 103. The drive shaft 402 is rotatably mounted in the third support frame 404, and the drive shaft 402 is supported by the third support frame 404.

[0050] The sieve cylinder 2 has a hollow structure and includes a first conical section 201, a cylindrical section 203, a second conical section 202 and an outlet section 204 arranged in sequence. The cylindrical section 203 has annular guide rails 207 fixed at both ends of its outer wall. Multiple sieve holes 205 are provided on the surface of the cylindrical section 203 between the two annular guide rails 207. Multiple sieve holes 205 are also provided on the surface of the second conical section 202.

[0051] The annular guide rail 207 of the sieve cylinder 2 is placed on the roller 403, and the bottom of the sieve cylinder 2 is located in the box 1.

[0052] The first conical segment 201 is located at the end closest to the motor 401.

[0053] A first arc-shaped groove is provided on the side of the housing 1 near the first conical section 201, and a second arc-shaped groove is provided on the other side of the housing 1 away from the first arc-shaped groove. The first conical section 201 is located inside the first arc-shaped groove, and the outlet section 204 extends through the second arc-shaped groove to the outside of the housing 1.

[0054] The side wall of the box body 1 is also equipped with a valve body 101, which is used to discharge the mud screened out by the screen cylinder 2.

[0055] Multiple spiral guide plates 206 are provided on the inner wall of the screen cylinder 2.

[0056] The cleaning mechanism 3 is fixed on the first support frame 103. The cleaning mechanism 3 includes a second support frame 301, a connecting rod 302, an eccentric roller 303, a connecting plate 304, an impact head 305, and an elastic element 306. The second support frame 301 is fixed on the first support frame 103. There are two of each of the second support frame 301, the connecting rod 302, and the eccentric roller 303. There is one connecting plate 304. There are multiple impact heads 305. There are at least two elastic elements 306.

[0057] In one embodiment, the elastic element 306 is a spring, but the elastic element 306 may also have other possible structures.

[0058] The connecting rod 302 includes a first segment 3021, an eccentric roller 303 rotatably mounted at one end of the first segment 3021, and a second segment 3022 extending obliquely from the other end of the first segment 3021. The first segment 3021 and the second segment 3022 are not in the same plane. The end of the first segment 3021 near the second segment 3022 is rotatably connected to the second support frame 301 via a rotating shaft 307. One end of the elastic element 306 is fixedly connected to the top of the second support frame 301, and the other end of the elastic element 306 is fixedly connected to the middle of the second segment 3022.

[0059] The projections of the first segment 3021 and the second segment 3022 onto the axial direction of the screen cylinder 2 are L-shaped.

[0060] The two second segments 3022 are provided with the same connecting plate 304 at the ends away from the first segment 3021. The connecting plate 304 is provided with multiple impact heads 305 corresponding to the screen holes 205 on the side near the screen cylinder 2.

[0061] The impact head 305 is cylindrical, and the diameter of the impact head 305 is smaller than the diameter of the sieve hole 205.

[0062] An eccentric roller 303 is disposed in the annular guide rail 207, and the surface of the eccentric roller 303 is always in contact with the annular guide rail 207 when the annular guide rail 207 rotates. When the second section 3022 and the eccentric roller 303 are at their highest points, the end of the first section 3021 connected to the connecting plate 304 is at its lowest point. At this time, the impact head 305 does not contact the surface of the screen cylinder 2.

[0063] When the second section 3022 and the eccentric roller 303 are at their lowest point, the end of the first section 3021 connected to the connecting plate 304 is at its highest point, and the impact head 305 contacts the surface of the screen cylinder 2 and is compressed, or the impact head 305 is in the screen hole 205.

[0064] As the annular guide rail 207 drives the eccentric roller 303 to rotate, the connecting rod 302 rotates along the rotating shaft 307, and the impact head 305 can clean the mud clogging the outer wall of the screen cylinder 2 or the screen hole 205.

[0065] In this application, the screen holes 205 of the second conical section 202 are at the end, and the amount of mud screened is relatively less than that of the cylindrical section 203, so the possibility of clogging is also smaller. Therefore, the cleaning mechanism 3 mainly cleans the screen holes 205 of the cylindrical section 203. Of course, the shape of the cleaning mechanism 3 can also be adjusted so that it can also clean the screen holes 205 of the second conical section 202.

[0066] In one embodiment, the impact head 305 is made of rubber.

[0067] In one embodiment, a compression spring is provided inside the rubber.

[0068] In one embodiment, a scraper is also provided on the outside of the impact head 305, which can scrape off the mud lumps on the outer wall of the screen cylinder 2.

[0069] In one embodiment, the first segment 3021 and the second segment 3022 are an integral structure.

[0070] In one embodiment, such as Figure 7 As shown, cleaning mechanisms 3 are provided on both sides of the screen cylinder 2. The outer wall of the screen cylinder 2 is cleaned by the cleaning mechanisms 3 on both sides, which makes the cleaning of the screen cylinder 2 more thorough.

[0071] In practical use, the dredged mud to be treated is added into the screen cylinder 2 from the first conical section 201. The motor 401 operates, and the output shaft of the motor 401 drives the drive shaft 402 to rotate. The drive shaft 402 drives the roller 403 to rotate. The roller 403 rotates in the annular guide rail 207, and the annular guide rail 207 also rotates with the rotation of the roller 403, thereby driving the screen cylinder 2 to rotate. Some of the mud falls into the box 1 through the screen holes 205. Some of the harder mud lumps and garbage are lifted to a high place by the spiral guide plate 206 as the screen cylinder 2 rotates and then fall down. The harder mud lumps are gradually broken up, and the garbage gradually moves towards the outlet section 204. As the screen cylinder 2 rotates, the garbage is discharged from the outlet section 204, completing the screening of garbage in the dredged mud.

[0072] As the screen cylinder 2 rotates, the annular guide rail 207 drives the eccentric roller 303 to rotate. The eccentric roller 303 drives the connecting rod 302 to rotate along the rotating shaft 307. The connecting rod 302 drives the connecting plate 304 and the impact head 305 to move towards the screen cylinder 2, so that the impact head 305 impacts the screen cylinder 2, causing the mud blockage in the screen hole 205 to be shaken down. The impact head 305 may also hit the screen hole 205 and knock the mud blockage into the screen cylinder 2. As the eccentric roller 303 rolls relative to the annular guide rail 207, the connecting rod 302 reciprocates along the rotating shaft 307, which causes the impact head 305 to repeatedly impact the screen cylinder 2, making it easier to quickly clean the mud blockage in the screen hole 205 and keep the screen cylinder 2 at a high screening efficiency.

[0073] The above description is an explanation of this application and not a limitation thereof. The scope of this application is defined by the claims. Within the scope of protection of this application, any form of modification may be made.

Claims

1. A front-end waste screening and processing device suitable for dredging projects, characterized in that, include: The box (1) has an opening at the top and a first support frame (103) is provided in the middle of the inner side of the box (1); The drive mechanism includes a motor (401), the output shaft of the motor (401) is fixedly connected to the drive shaft (402), and the drive shaft (402) is provided with rollers (403) inside the housing (1); The screen cylinder (2) has an annular guide rail (207) fixed at both ends of its outer wall. The screen cylinder (2) has multiple screen holes (205) on its surface. The screen cylinder (2) has a spiral guide plate (206) inside its interior. The annular guide rail (207) is placed on a roller (403). The cleaning mechanism (3) includes a second support frame (301) and a connecting rod (302), wherein the second support frame (301) is fixed on the first support frame (103); The connecting rod (302) includes a first section (3021), one end of which is provided with a rotatable eccentric roller (303), and the other end of the first section (3021) extends obliquely to form a second section (3022). The end of the second section (3022) away from the first section (3021) is provided with a connecting plate (304), and the side of the connecting plate (304) near the screen cylinder (2) is provided with multiple impact heads (305) corresponding to the screen holes (205). The first segment (3021) is rotatably connected to the second support frame (301) at one end near the second segment (3022) via a pivot (307). One end of the elastic element (306) is fixedly connected to the top of the second support frame (301), and the other end of the elastic element (306) is fixedly connected to the middle of the second segment (3022).

2. The front-end waste screening and processing device for dredging projects as described in claim 1, characterized in that: The second support frame (301), connecting rod (302) and eccentric roller (303) are each provided in twos, and the connecting plate (304) is fixedly connected to the two connecting rods (302) respectively.

3. The front-end waste screening and processing device for dredging projects as described in claim 1, characterized in that: The projections of the first segment (3021) and the second segment (3022) onto the axial direction of the screen cylinder (2) are L-shaped.

4. The front-end waste screening and processing device for dredging projects as described in claim 1, characterized in that: The impact head (305) is cylindrical, and the diameter of the impact head (305) is smaller than the diameter of the sieve hole (205).

5. A front-end waste screening and processing device suitable for dredging projects as described in claim 4, characterized in that: The impact head (305) is made of rubber, and a compression spring is installed inside the rubber.

6. A front-end waste screening and processing device suitable for dredging projects as described in any one of claims 1-4, characterized in that: The cleaning mechanism (3) is provided in two sets, and the two sets of cleaning mechanisms (3) are respectively set on both sides of the screen cylinder (2).

7. A front-end waste screening and processing device suitable for dredging projects as described in claim 5, characterized in that: The impact head (305) is also provided with a scraper on the outside, which is used to scrape off the mud from the outer wall of the screen cylinder (2).

8. A front-end waste screening and processing device suitable for dredging projects as described in claim 1, characterized in that: The roller (403) is provided with a third support frame (404) on both sides. The third support frame (404) is fixed on the first support frame (103). The drive shaft (402) is rotatably arranged in the third support frame (404) and the drive shaft (402) is supported by the third support frame (404).

9. A front-end waste screening and processing device suitable for dredging projects as described in claim 1, characterized in that: The sieve cylinder (2) includes a first conical section (201), a cylindrical section (203), a second conical section (202), and an outlet section (204) arranged in sequence. Annular guide rails (207) are fixed at both ends of the outer wall of the cylindrical section (203). Multiple sieve holes (205) are provided on the surface of the cylindrical section (203) between the two annular guide rails (207), and multiple sieve holes (205) are provided on the surface of the second conical section (202).

10. A front-end waste screening and processing device suitable for dredging projects as described in claim 1, characterized in that: A ladder (102) is also provided on the outside of the box (1), and a valve body (101) is also provided on the side wall of the box (1).

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