Environment-friendly dredging device for polluted bottom mud

Abstract

The utility model discloses an environment-friendly dredging device for polluted bottom mud, which belongs to the technical field of dredged bottom mud treatment, provides sunlight irradiation type natural drying conditions for dredged bottom mud through an open-air drying pool with an upward opening, and drives bottom plate strips to reciprocate at the bottom of the drying pool through a moving vehicle suspended above the drying pool. According to the technical scheme, the bottom plate strips are arranged on the bottom of the drying pond, dredged bottom mud located at the bottom of the drying pond can be turned over and stirred, after natural irradiation, the undried dredged bottom mud on the lower layer is turned up and exposed in the sun, and after multiple times of turning over and stirring, the dredged bottom mud is small dry mud blocks and is convenient to collect and transport, in the scheme, the bottom plate strips are in an inverted-V shape, and gaps are reserved between the bottom plate strips and the bottom of the drying pond; the dredged sediment drying device is simple in structure, convenient to use, free of being clamped at the bottom of a drying pool and capable of rapidly turning up dredged sediment, scraping teeth arranged on the bottom plate strips facilitate damage and smashing of the dredged sediment and blocking of the dredged sediment, and the dredged sediment drying device improves the efficiency of natural drying of the dredged sediment and dries finished products at a time.

Description

Technical Field

[0001] The utility model belongs to the technical field of dredged sediment treatment, and in particular relates to an environmentally friendly dredging device for polluted sediment. Background Art

[0002] Dredged sediment refers to the sediment excavated from the bottom of a water body during dredging operations. These sediments often contain high levels of pollutants. The management and treatment of dredged sediment is a crucial step in water environment management, as pollutants in these sediments can be released back into the water body if not handled properly, causing secondary pollution.

[0003] Treatment methods for dredged sludge include harmless treatment, drying, and solidification. After removing pollutants, the dried sludge can be used in construction, agriculture, greening and other fields. One drying method for dredged sludge is natural drying, which uses sunlight exposure to remove moisture from the dredged sludge. However, when the sludge is exposed to the sun, the surface is heated and the bottom temperature is not high enough, resulting in long drying time and insufficient evaporation of moisture at the bottom. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide an environmentally friendly dredging device for contaminated bottom mud, which stirs the bottom mud exposed to the sun by providing a bottom mud stirring part, thereby improving the drying efficiency of the bottom mud.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions:

[0006] The utility model includes a square drying pool, wherein a bottom mud extraction device for pumping water mixed with bottom mud into the drying pool is provided beside the drying pool, a water leakage mesh is provided on the bottom surface of the drying pool, a bottom mud stirring part is provided in the drying pool, and the bottom mud stirring part includes an elongated bottom plate strip, a connecting rod is fixed upward at the bottom of the bottom plate strip, a movable vehicle is provided on the top of the connecting rod, and also includes a slide rail suspended on the top of the drying pool, the slide rail extends along the length direction of the drying pool, the movable vehicle is movably set on the slide rail, and a gap is reserved between the bottom plate strip and the bottom surface of the drying pool.

[0007] Furthermore, the bottom plate is provided with a mud-turning slope along the forward and backward movement direction for mud to climb.

[0008] Furthermore, a plurality of scraping teeth are arranged on the front and rear edges of the bottom strip.

[0009] Furthermore, the cross section of the bottom plate strip is an inverted V-shaped structure.

[0010] Furthermore, vertical baffles are provided on the bottom surface of the drying tank along the length direction, and the vertical baffles and the side surfaces of the drying tank form a water leakage groove, and the water leakage mesh is provided on the bottom surface of the water leakage groove.

[0011] Furthermore, the mobile vehicle includes a shell, the bottom of the shell is provided with a rail groove slidably arranged on the slide rail, a motor is provided in the shell, the output end of the motor is connected to a gear, and the side of the slide rail is provided with a tooth engaged with the gear.

[0012] The beneficial effects of the present invention are:

[0013] The utility model provides a sunlight-exposed natural drying condition for the dredged sludge by means of an open-air drying pool with an opening facing upward. The drying pool is provided with vertical baffles and water-leakage meshes, and the mixed water of the dredged sludge is initially removed by sedimentation. The settled dredged sludge evaporates the remaining water under the sunlight, and then the bottom plate strips are driven by a mobile vehicle suspended above the drying pool to move back and forth at the bottom of the drying pool, which can stir the dredged sludge at the bottom of the drying pool. After natural exposure, the dredged sludge in the lower layer that has not yet dried is turned up and exposed to the sunlight. After multiple stirrings, the dredged sludge is in the form of small dry mud blocks, which are convenient for collection and transportation. In this scheme, the bottom plate strips are in an inverted V shape and leave a gap at the bottom of the drying pool. During the movement of the bottom plate strips, they will not get stuck at the bottom of the drying pool, and the dredged sludge can be turned up quickly. The scraping teeth arranged on the bottom plate strips are conducive to the destruction and crushing of the dredged sludge, which is conducive to the caking of the dredged sludge. This drying device improves the efficiency of the natural drying of the dredged sludge and dries the finished product in one time.

[0014] Other advantages, objectives, and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or they may be taught by those skilled in the art from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention is described with the following drawings:

[0016] Figure 1 This is an overall schematic diagram of the environmentally friendly dredging device according to an embodiment of the utility model;

[0017] Figure 2 This is a detailed schematic diagram of the bottom mud stirring part of an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the interior of a mobile vehicle according to an embodiment of the present utility model;

[0019] Figure 4 This is a cross-sectional view of a drying tank according to an embodiment of the present utility model;

[0020] The markings in the attached drawings are as follows: 1. Drying pool; 11. Leakage mesh; 12. Vertical baffle; 13. Leakage trough; 2. Bottom mud stirring part; 21. Bottom plate strip; 211. Mud turning slope; 212. Scraper; 22. Connecting rod; 23. Mobile vehicle; 231. Shell; 232. Motor; 233. Gear; 3. Slide rail; 31. Gear; 4. Bottom mud extraction equipment. DETAILED DESCRIPTION

[0021] like Figures 1 to 4 As shown, the utility model discloses an environmentally friendly dredging device for polluted bottom mud, comprising a square drying pool 1, a bottom mud extraction device 4 for pumping water mixed with bottom mud into the drying pool 1 is provided next to the drying pool 1, the drying pool 1 is constructed of concrete, with an opening facing upwards, exposed to an unobstructed site, and the dredged bottom mud in the drying pool 1 is dried by sunlight. Figure 1 and Figure 4 As shown, a leaky mesh 11 is provided on the bottom surface of the drying pool 1, and a vertical baffle 12 is provided on the bottom surface of the drying pool 1 along the length direction. The vertical baffle 12 and the side surface of the drying pool 1 form a leaky trough 13, and the leaky mesh 11 is provided on the bottom surface of the leaky trough 13; when muddy water mixed with bottom mud is poured into the drying pool 1, the dredged bottom mud is settled at the bottom of the drying pool 1, and the leaky mesh 11 can be closed. After the sedimentation is completed, the leaky mesh 11 is opened, and a small part of the bottom mud in the leaky trough 13 and the clean water on the upper layer of the drying pool 1 flow out through the leaky mesh 11, and the settled bottom mud is blocked by the vertical baffle 12 and retained in the drying pool 1. Figure 1 As shown, the drying tank 1 is provided with a bottom mud stirring part 2, and the bottom mud stirring part 2 includes a long bottom plate 21, a connecting rod 22 is fixed upward at the bottom of the bottom plate 21, and a moving vehicle 23 is provided on the top of the connecting rod 22. It also includes two parallel slide rails 3 suspended on the top of the drying tank 1. The cross section of the slide rail 3 is T-shaped. The slide rail 3 extends along the length direction of the drying tank 1. The moving vehicle 23 is movably set on the slide rail 3. Figure 3 As shown, the mobile vehicle 23 includes a housing 231, a rail groove is provided at the bottom of the housing 231, and a motor 232 is provided in the housing 231. The output end of the motor 232 is connected to a gear 233. The side of the slide rail 3 is provided with a tooth 31 that meshes with the gear 233. Driven by the motor 232, the mobile vehicle 23 moves back and forth along the slide rail 3, pulling the bottom plate 21 to move back and forth in the drying tank 1. Figure 2 The width of the bottom strip 21 occupies the width of the drying pool 1. The cross-section of the bottom strip 21 is an inverted V-shape. The bottom strip 21 is provided with mud-turning slopes 211 for soil to climb in the front and rear directions of movement; a plurality of scraping teeth 212 are arranged on the front and rear edges of the bottom strip 21, and a gap is reserved between the bottom strip 21 and the bottom surface of the drying pool 1.

[0022] In this scheme, an open-air drying pool 1 with an opening facing upward is provided to provide sunlight-irradiated natural drying conditions for the dredged sludge. The drying pool 1 is provided with vertical baffles 12 and water-leakage meshes 11 to initially remove the mixed water of the dredged sludge by sedimentation. The precipitated dredged sludge evaporates the remaining water under sunlight, and then the bottom plate 21 is driven to move back and forth at the bottom of the drying pool 1 by a mobile vehicle 23 suspended above the drying pool 1, which can stir the dredged sludge at the bottom of the drying pool 1. After natural exposure, the dredged sludge in the lower layer that has not been dried yet is removed. The dredged mud is turned over and exposed to the sun. After being stirred many times, the dredged mud becomes small dry mud blocks, which are convenient for collection and transportation. In this solution, the bottom plate 21 is in an inverted V shape and leaves a gap with the bottom of the drying tank 1. During the movement of the bottom plate 21, it will not get stuck at the bottom of the drying tank 1, and the dredged mud can be turned over quickly. The scraping teeth 212 provided on the bottom plate 21 are conducive to the destruction and crushing of the dredged mud, and are conducive to the agglomeration of the dredged mud. This drying device improves the efficiency of natural drying of the dredged mud, and dries more finished products at one time.

[0023] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. An environmentally friendly dredging device for polluted sediment, characterized by: The invention comprises a square drying pool (1), a bottom mud extraction device (4) for pumping water mixed with bottom mud into the drying pool (1) is provided beside the drying pool (1), a water leakage mesh (11) is provided on the bottom surface of the drying pool (1), a bottom mud stirring portion (2) is provided in the drying pool (1), the bottom mud stirring portion (2) comprises a long bottom plate (21), a connecting rod (22) is fixed upward at the bottom of the bottom plate (21), a moving vehicle (23) is provided on the top of the connecting rod (22), and a slide rail (3) suspended on the top of the drying pool (1), the slide rail (3) extends along the length direction of the drying pool (1), the moving vehicle (23) is movably arranged on the slide rail (3), and a gap is reserved between the bottom plate (21) and the bottom surface of the drying pool (1).

2. The environmentally friendly dredging device for contaminated sediment according to claim 1, characterized in that: The bottom plate (21) is provided with a mud-turning slope (211) along the forward and backward movement direction for mud to climb.

3. The environmentally friendly dredging device for contaminated sediment according to claim 1, characterized in that: A plurality of scraping teeth (212) are arranged on the front and rear edges of the bottom plate strip (21).

4. The environmentally friendly dredging device for contaminated sediment according to claim 1, characterized in that: The cross section of the bottom plate strip (21) is an inverted V-shaped structure.

5. The environmentally friendly dredging device for contaminated sediment according to claim 1, characterized in that: The bottom surface of the drying tank (1) is provided with a vertical baffle (12) along the length direction, the vertical baffle (12) and the side surface of the drying tank (1) form a water leakage groove (13), and the water leakage mesh (11) is provided on the bottom surface of the water leakage groove (13).

6. The environmentally friendly dredging device for contaminated sediment according to claim 1, characterized in that: The mobile vehicle (23) comprises a housing (231), the bottom of the housing (231) is provided with a rail groove slidably mounted on the slide rail (3), a motor (232) is provided in the housing (231), an output end of the motor (232) is connected to a gear (233), and a side surface of the slide rail (3) is provided with a latching tooth (31) meshing with the gear (233).

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