Self-adaptive sludge feeding device

Abstract

The utility model relates to a self-adaptive sludge feeding device which is a hollow cavity defined by a top plate, side plates and a rear plate, a sludge inlet is formed in the front end of the sludge feeding device, a sludge outlet communicated with a suction port of a desilting pump is formed in the rear plate, and the height of the sludge inlet can be automatically adjusted according to the elevation of the sludge surface needing to be removed. According to the desilting device, the concentration of mud pumped by the desilting pump can be stabilized within a high concentration range all the time, the desilting efficiency is improved, the desilting cost is reduced, the whole desilting operation process is cleaner and more thorough, and the desilting effect is greatly improved.

Description

Technical Field

[0001] The utility model relates to a mud feeding device for dredging and desilting equipment, in particular to a mud feeding device capable of automatically adjusting the height of a mud inlet in real time. Background Art

[0002] As we all know, pneumatic dredging pumps are widely used in underwater environmental dredging projects. They use compressed air as a power source to push out mud that has entered the pump body due to water pressure differentials. They offer advantages such as a simple structure, reliable operation, no disturbance of the clay layer that could cause secondary water pollution, and high sludge concentration. They are particularly suitable for environmental dredging in rivers, lakes, reservoirs, and other water bodies where water quality cannot be compromised. Pneumatic dredging pumps use water pressure to force underwater sludge into the pump through a sludge inlet. Currently, the sludge inlet of pneumatic dredging pumps is a fixed channel with a fixed structure and dimensions. In actual dredging projects, the mud surface of the bottom of the water is not flat and smooth, but is affected by the bottom terrain and water flow, with ups and downs and bumps. This determines that the actual mud elevation that needs to be removed is not a fixed value, but a value that changes dynamically in real time like ByteDance. Since the mud inlet height of the current pneumatic dredging pump is a fixed size, dredging operations can only be carried out at a relatively fixed dredging elevation. When faced with undulating mud, the mud inlet in the depressions of the bottom of the water will suck in a large amount of water, causing The concentration of the pumped mud is low, which not only reduces the actual dredging efficiency, but also increases the volume of mud solidification treatment at the back end, increases the overall dredging cost, and prolongs the dredging period; at the bulges of the mud on the bottom of the water, the mud will accumulate and collapse at the mud inlet, causing the silt to spread on the bottom of the water. The silt spread not only causes secondary pollution of the water body, but also spreads to the areas where dredging operations have been carried out, causing silt to be deposited again in the dredged areas, resulting in incomplete dredging operations, affecting the dredging effect and the project acceptance. For this reason, it is necessary to propose a mud inlet device that can adapt to the actual dredging conditions of the bottom of the water and can automatically adjust the mud inlet height in real time as the mud surface on the bottom of the water rises and falls. Summary of the Invention

[0003] The purpose of the present invention is to solve the above problems and provide an adaptive mud inlet device. The adaptive mud inlet device has a simple structure and is easy to manufacture. It can automatically adjust the mud inlet height in real time according to the actual mud elevation at the bottom of the water.

[0004] The purpose of the present invention is achieved through the following technical solutions: An adaptive mud feeding device, which is a hollow cavity surrounded by a top plate, side plates and a rear plate, has a mud inlet at the front end and a mud outlet connected to the suction port of a dredging pump on the rear plate, characterized in that:

[0005] The height of the mud inlet can be automatically adjusted according to the elevation of the mud surface that needs to be removed;

[0006] The mud inlet is a space enclosed by the side panels and a floating baffle at the front end of the mud inlet device. The floating baffle includes a baffle body component and a baffle bottom component. The floating baffle can move freely up and down. The gravity of the floating baffle is equal to the buoyancy it receives at the interface of the water body and mud.

[0007] A limiting component is also provided at the front end of the mud feeding device, and the floating baffle can only move up and down under the limiting action of the limiting component.

[0008] Furthermore, the self-adaptive mud feeding device is characterized in that the density of the baffle body component at room temperature is 0.9g / cm 3 -1.0g / cm 3 The density of the bottom part of the baffle is not less than 1.04g / cm 3 The overall density of the floating baffle is greater than the density of water and not greater than 1.2g / cm 3 ; The height of the bottom part of the baffle shall not exceed 10 cm.

[0009] Furthermore, an adaptive mud feeding device is provided, which is a hollow cavity surrounded by a top plate, side plates and a rear plate. A mud inlet is provided at the front end of the mud feeding device, and a mud outlet connected to the suction port of a dredging pump is provided on the rear plate. The feature is that the mud inlet is surrounded by the top plate and the side plates, the top plate includes a top plate main body component and a top plate bottom end component, the top plate is attached to the inner wall surrounded by the side plates and the rear plate and can move freely up and down along the inner wall, and the gravity of the top plate is equal to the buoyancy it receives at the interface of the bottom mud of the water body.

[0010] Furthermore, the self-adaptive mud feeding device is characterized in that the bottom end part of the top plate is a raised portion located at the lower edge of the top plate body part, and the height of the bottom end part of the top plate is not greater than 10 centimeters.

[0011] Furthermore, the adaptive mud feeding device is characterized in that the horizontal cross-sectional shape of the top plate bottom end component is consistent with the horizontal cross-sectional shape of the top plate body component, and the height of the top plate bottom end component is not greater than 5 cm.

[0012] Furthermore, the self-adaptive mud feeding device is characterized in that the density of the top plate body component at room temperature is 0.9g / cm 3 -1.0g / cm 3 The density of the bottom part of the top plate shall not be less than 1.04g / cm 3 The overall density of the top plate is greater than the density of water and not greater than 1.2g / cm 3 .

[0013] In the adaptive mud-feeding device of the present invention, the overall density of the floating baffle and top plate is slightly greater than the density of water. Therefore, under the action of its own gravity and the buoyancy of the water and silt, the lower edge of the floating baffle or top plate can fall just below the interface between the water and the silt. Therefore, during actual dredging and desilting operations, the adaptive mud-feeding device can automatically adjust the mud-feeding port height in real time according to the elevation of the underwater silt surface. Regardless of the undulations or unevenness of the underwater silt surface, the upper edge of the mud-feeding port can always fall just below the interface between the silt and the water. By controlling the forward speed of the adaptive mud-feeding device, the mud concentration pumped by the desilting pump can always be stabilized within a relatively high concentration range. This avoids the phenomenon of low mud concentration due to excessive mud-feeding port height in silt depressions and the phenomenon of mud accumulation and diffusion due to insufficient mud-feeding port height in silt protrusions. This not only improves desilting efficiency and reduces desilting costs, but also makes the entire desilting process cleaner and more thorough, greatly enhancing the desilting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural stereogram of embodiment 1 of the present invention.

[0015] Figure 2 It is a front view of embodiment 1 of the present invention.

[0016] Figure 3 It is a top view of embodiment 1 of the present invention.

[0017] Figure 4 It is a right side view of embodiment 1 of the present invention.

[0018] Figure 5 This invention Figure 2 AA section view.

[0019] Figure 6 It is a structural stereogram of embodiment 2 of the present invention.

[0020] Figure 7 It is a front view of embodiment 2 of the present invention.

[0021] Figure 8 It is a top view of embodiment 2 of the present invention.

[0022] Figure 9 It is a right side view of embodiment 2 of the present invention.

[0023] Figure 10 This invention Figure 7 BB cross-sectional view.

[0024] Figure 11 It is a structural stereogram of Example 3 of the present invention.

[0025] Figure 12It is a front view of embodiment 3 of the present invention.

[0026] Figure 13 This invention Figure 12 CC section view.

[0027] Figure 14 It is a structural stereogram of embodiment 4 of the present invention.

[0028] Figure 15 It is a front view of embodiment 4 of the present invention.

[0029] Figure 16 It is a top view of embodiment 4 of the present invention.

[0030] Figure 17 It is a structural stereogram of Example 6 of the present invention.

[0031] Figure 18 It is a structural stereoscopic diagram of the top plate 1 of Example 6 of the present invention. DETAILED DESCRIPTION

[0032] The present invention will be further described below with reference to the accompanying drawings.

[0033] Example 1, see attached Figure 1-5 The adaptive mud feeding device is a hollow cavity surrounded by a top plate 1, two side plates 2, a rear plate 3 and a bottom plate 8; a limiting member 7 is also provided at the front end of the mud feeding device, which is a card slot with two openings opposite to each other. The inner surface of the card slot opposite to the opening is arc-shaped, and an inner surface of the card slot adjacent to the opening is in the same plane as the front end surface of the top plate 1 and the side plate 2; the floating baffle 6 is stuck in the groove of the limiting member 7 and can move up and down freely. The side surface of the floating baffle 6 is in line contact with the arc-shaped inner surface of the limiting member 7, which can reduce the contact area between the floating baffle 6 and the limiting member 7, thereby reducing the floating baffle. The resistance of the plate 6 to the up and down movement; the space enclosed by the floating baffle 6 and the side plate 2 forms a mud inlet 4, and the rear plate 3 is provided with a mud outlet 5 connected to the suction port of the dredging pump; the floating baffle 6 includes a baffle body component 6.1 and a baffle bottom component 6.2, the top of the baffle body component 6.1 is a curved surface, and the bottom end of the baffle bottom component 6.2 is a curved surface, which can reduce the water body's movement resistance to the floating baffle 6; the density of the baffle body component 6.1 at room temperature is 1.0g / cm3, the density of the baffle bottom component 6.2 at room temperature is 1.06g / cm3, and the height of the baffle bottom component 6.2 is 5cm.

[0034] During dredging operations, the adaptive mud feed device is lowered into the underwater mud. The density of the underwater mud at the mud surface is the density of water, and the mud density gradually increases from the mud surface downward. Because the overall density of the floating baffle 6 is greater than the density of water, the floating baffle 6 will slide below the mud surface under its own weight. When the weight of the floating baffle 6 begins to equal the buoyancy it experiences, the floating baffle 6 automatically settles at a position slightly below the mud surface. For a given pneumatic dredging pump, its dredging capacity is fixed, and the floating baffle 6 automatically adapts to the fluctuations of the mud surface, always maintaining a relative position slightly below the mud surface. Therefore, by controlling the forward movement speed of the adaptive mud feed device, it is possible to ensure that all the dredging mud to be removed is drawn into the dredging pump body, preventing the accumulation and diffusion of the dredging mud while maintaining the mud concentration of the dredging pump within a relatively high concentration range, thereby improving dredging efficiency and enhancing dredging results.

[0035] Example 2, see attached Figure 6-10 The adaptive mud inlet device is a hollow cavity surrounded by a top plate 1, two side plates 2, a rear plate 3 and a bottom plate 8, wherein the top plate 1 and the side plates 2 enclose a space to form a mud inlet 4, and the rear plate 3 is provided with a mud outlet 5 connected to the suction port of the dredging pump; the top plate 1 includes a top plate body component 1.1 and a top plate bottom end component 1.2, the room temperature density of the top plate body component 1.1 is 1.0g / cm3, the top plate bottom end component 1.2 is 4 protrusions extending downward along the lower edges of the four corners of the top plate body component 1.1, the height of the top plate bottom end component 1.2 is 10cm, and the density is 1.40g / cm3; the top plate 1 is attached to the inner wall surrounded by the side plates 2 and the rear plate 3 and can move freely up and down along the inner wall.

[0036] During dredging operations, the adaptive mud feed device is lowered into the underwater mud. The density of the underwater mud at the mud surface is the density of water. The mud density gradually increases from the mud surface downward. Because the overall density of the top plate 1 is greater than the density of water, the top plate 1 slides below the mud surface under its own weight. When the weight of the top plate 1 begins to equal the buoyancy it experiences, the top plate 1 automatically stays at a position slightly below the mud surface. For a specific pneumatic dredging pump, its dredging displacement is a fixed value, and the top plate 1 can automatically adapt to the fluctuations of the mud surface, always maintaining a relative position slightly below the mud surface. Therefore, by controlling the forward movement speed of the adaptive mud feed device, it is possible to ensure that all the dredging mud to be removed is sucked into the dredging pump body, preventing the accumulation and diffusion of the dredging mud and maintaining the mud concentration of the dredging pump within a high concentration range, thereby improving the dredging efficiency and effectiveness.

[0037] Example 3, see attached Figure 11-13The adaptive mud inlet device is a hollow cavity formed by a top plate 1, two side plates 2, a rear plate 3, and a bottom plate 8. The top plate 1 and the side plates 2 enclose a space forming a mud inlet 4, and the rear plate 3 is provided with a mud outlet 5 connected to the suction port of the dredging pump. The top plate 1 includes a top plate body component 1.1 and a top plate bottom component 1.2. The top plate body component 1.1 has a room temperature density of 0.90 g / cm³ and a height of 5 cm. The horizontal cross-sectional shape of the top plate bottom component 1.2 is consistent with the horizontal cross-sectional shape of the top plate body component 1.1. The top plate bottom component 1.2 is 5 cm high and has a density of 1.20 g / cm³. The overall density of the top plate 1 is 1.05 g / cm³. The top plate 1 is attached to the inner wall formed by the side plates 2 and the rear plate 3 and can move freely up and down along the inner wall. The specific working process of the adaptive mud inlet device of Example 3 during dredging operations can be seen in Example 2.

[0038] Example 4, adaptive mud feeding device, see attached Figure 14-16 The limiting member 7 is a long hole opened at the front end of the top plate 1, and the two ends of the long hole extend to the inner surfaces of the left and right side plates 2; the density of the baffle body part 6.1 at room temperature is 0.94g / cm3, the height is 50cm, the density of the baffle bottom part 6.2 at room temperature is 1.6g / cm3, the height of the baffle bottom part 6.2 is 10cm, and the overall density of the floating baffle 6 is 1.05g / cm3; the rest of the structure and dredging work process are the same as those in Example 1.

[0039] Example 5, an adaptive mud feeding device, the specific structure refers to Example 1. The difference from Example 1 is that: the density of the baffle body part 6.1 at room temperature is 0.90g / cm3, the height is 59cm, the density of the baffle bottom part 6.2 at room temperature is 9.0g / cm3, the height of the baffle bottom part 6.2 is 1cm, and the overall density of the floating baffle 6 is 1.035g / cm3; the rest of the structure and dredging work process are the same as Example 1.

[0040] Example 6, adaptive mud feeding device, see attached Figure 17-18 The bottom end part 1.2 of the top plate is a U-shaped protrusion extending downward along the lower front edge and both side edges of the top plate main body part 1.1. The height of the bottom end part 1.2 of the top plate is 8 cm and the density is 1.30 g / cm3; the rest of the structure and dredging work process are the same as those in Example 2.

[0041] Although the present invention has been described in detail using specific embodiments, it will be apparent to those skilled in the art that various changes can be made without departing from the spirit and scope of the invention.

Claims

1. An adaptive mud feeding device, the mud feeding device is a hollow cavity surrounded by a top plate (1), a side plate (2) and a rear plate (3), a mud inlet (4) is provided at the front end of the mud feeding device, and a mud outlet (5) connected to the suction port of a dredging pump is provided on the rear plate (3), and the characteristics are: The height of the mud inlet (4) can be automatically adjusted according to the elevation of the mud surface to be removed; The mud inlet (4) is a space enclosed by the side panels (2) and a floating baffle (6) located at the front end of the mud inlet device. The floating baffle (6) includes a baffle body component (6.1) and a baffle bottom component (6.2). The floating baffle (6) can move freely up and down. The gravity of the floating baffle (6) is equal to the buoyancy it receives at the interface of the bottom mud of the water body. A limiting component (7) is also provided at the front end of the mud feeding device, and the floating baffle (6) can only move up and down under the limiting action of the limiting component (7).

2. The adaptive mud feeding device according to claim 1, characterized in that: The density of the baffle body part (6.1) at room temperature is between 0.9g / cm3 and 1.0g / cm3, the density of the baffle bottom part (6.2) is not less than 1.04g / cm3, and the overall density of the floating baffle (6) is greater than the density of water and not greater than 1.2g / cm3.

3. The adaptive mud feeding device according to claim 1, characterized in that: The height of the baffle bottom part (6.2) is not greater than 10 centimeters.

4. An adaptive mud feeding device, which is a hollow cavity surrounded by a top plate (1), a side plate (2) and a rear plate (3), is provided with a mud inlet (4) at the front end of the mud feeding device, and a mud outlet (5) connected to the suction port of a dredging pump is provided on the rear plate (3), and is characterized in that: The mud inlet (4) is surrounded by a top plate (1) and side plates (2). The top plate (1) includes a top plate body component (1.1) and a top plate bottom component (1.2). The top plate (1) is attached to the inner wall surrounded by the side plates (2) and the rear plate (3) and can move freely up and down along the inner wall. The gravity of the top plate (1) is equal to the buoyancy it receives at the bottom mud interface of the water body.

5. The adaptive mud feeding device according to claim 4, characterized in that: The top plate bottom end component (1.2) is a raised portion located at the lower edge of the top plate body component (1.1), and the height of the top plate bottom end component (1.2) is no more than 10 centimeters.

6. The adaptive mud feeding device according to claim 4, characterized in that: The horizontal cross-sectional shape of the top plate bottom end part (1.2) is consistent with the horizontal cross-sectional shape of the top plate body part (1.1), and the height of the top plate bottom end part (1.2) is not greater than 5 centimeters.

7. The adaptive mud feeding device according to claim 4, characterized in that: At room temperature, the density of the top plate body component (1.1) is between 0.9g / cm3 and 1.0g / cm3, the density of the top plate bottom component (1.2) is not less than 1.04g / cm3, and the overall density of the top plate (1) is greater than the density of water and not greater than 1.2g / cm3.

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