A liquid waste elevator within a shaft

Abstract

The utility model relates to shaft cleaning equipment technical field discloses a kind of liquid dirt hoister in shaft, including pulp pipe, the top of pulp pipe is provided with inlet, the bottom of pulp pipe is provided with discharge port, the pulp pipe is provided with water return device, wherein the water return device bottom is set through the discharge port, and the water return device can be relatively adjusted to the pulp pipe up and down movement, to realize the sealing and opening of the discharge port;The utility model can promptly lift and discharge the liquid dirt in shaft, ensure the normal work use of shaft, simple structure, easy operation is used, and practicality is strong.

Description

Technical Field

[0001] This utility model relates to the technical field of vertical shaft cleaning equipment, and in particular to a liquid sludge lifting device for vertical shafts. Background Technology

[0002] During construction in mines, tunnels, and underground engineering projects, it is often necessary to excavate large-diameter, long-depth vertical shafts. Due to geological conditions or construction dewatering, large amounts of mud, sewage, and other liquid contaminants easily accumulate at the bottom of these shafts. Traditional cleaning methods mainly rely on submersible pumps for pumping, but in the case of large-diameter, deep vertical shafts, submersible pumps have the following technical drawbacks: Head limitation: Ordinary submersible pumps have insufficient head in deep wells, making it difficult to effectively lift the bottom mud to the surface, especially when the depth exceeds 50 meters, the efficiency drops significantly. Blockage risk: When the slurry has a high solids content, the pump impeller and pipeline are easily blocked by particles, leading to frequent shutdowns for maintenance.

[0003] Therefore, there is an urgent need for a vertical shaft liquid sludge lifting device that is suitable for deep vertical shafts and can efficiently lift mud and water. Utility Model Content

[0004] The purpose of this utility model is to provide a liquid and waste lifting device for vertical shafts, which can lift and discharge liquid and waste in vertical shafts in a timely manner, ensuring the normal operation of vertical shafts. It has a simple structure, is easy to operate and use, and is highly practical.

[0005] The present invention adopts the following technical solution: A liquid sludge lifting device for vertical shafts includes a slurry lifting pipe with a slurry inlet at the top and a slurry outlet at the bottom. A water return device is installed inside the slurry lifting pipe, wherein the bottom of the water return device extends through the slurry outlet and is adjustable up and down relative to the slurry lifting pipe to seal and open the slurry outlet.

[0006] Preferably, the water return device includes a sealing part located inside the slurry lifting pipe, and a connecting rod is provided at the bottom of the sealing part, the connecting rod being movably inserted into the slurry discharge port.

[0007] Preferably, the sealing part is a conical structure with the tip pointing upwards.

[0008] Preferably, the bottom of the connecting rod is provided with a limiting part, the size of which is larger than the size of the slurry discharge port.

[0009] Preferably, the bottom of the limiting part has a pointed structure.

[0010] Preferably, the limiting part is a hollowed-out conical frame.

[0011] Preferably, the upper side of the discharge port is provided with an inclined guide slope along the circumferential direction, and the guide slope forms an inverted frustum shape.

[0012] Preferably, the bottom of the sealing part is provided with a frustum-shaped sealing plug, the diameter of which increases from bottom to top, and the diameter of its top is larger than the diameter of the slurry discharge port.

[0013] Preferably, a slurry collecting hopper is provided at the top of the slurry lifting pipe.

[0014] Preferably, the upper circumference of the slurry lifting pipe is provided with multiple connecting ear plates at intervals.

[0015] Compared with existing technologies, the advantages of this utility model are as follows: This utility model, by setting up a slurry lifting pipe and an adjustable return water device, abandons the traditional submersible pump's reliance on impeller lifting and utilizes fluid mechanics principles to form a stable lifting channel. When the slurry lifting pipe is lowered into the shaft, some slurry will first enter from the discharge port. As the slurry lifting pipe is fully lowered, the slurry will enter from the inlet at the top. Once the slurry lifting pipe is full, as the slurry lifting pipe rises, the discharge port will seal to prevent leakage under the weight of the return water device and the pressure of the slurry inside the slurry lifting pipe. This continues until the slurry lifting pipe is raised to the ground. When the slurry lifting pipe is placed on the ground, the bottom of the return water device contacts the ground. At this point, the return water device will rise into the slurry lifting pipe under the pressure of the slurry, opening the discharge port and allowing the slurry to be discharged smoothly. The operation is simple and quick, the structure is simple, and it is easy to maintain.

[0016] This invention enables highly efficient lifting of mud and sewage from the bottom of deep vertical shafts, effectively solving the problem of insufficient head of ordinary submersible pumps in deep wells, and greatly improving the efficiency and depth of sewage lifting. Furthermore, compared to the shortcomings of traditional submersible pumps, which are easily clogged by particles in the mud, the lifting structure of this application has no complex rotating parts, reducing direct contact with solid particles in the mud. The return water device only adjusts vertically; its relatively simple movement and the sealed opening design of the discharge port effectively avoid clogging caused by particle accumulation, significantly reducing the frequency of equipment downtime maintenance and ensuring the continuity and stability of vertical shaft liquid sewage cleaning operations. Attached Figure Description

[0017] Figure 1 This is a front view of an embodiment of this application; Figure 2 This is a partial sectional view of an embodiment of this application. Detailed Implementation

[0018] The present invention will now be described clearly and completely with reference to the accompanying drawings and embodiments: like Figures 1 to 2As shown, the present invention provides a liquid sludge lifting device for vertical shafts, including a lifting pipe 1, which is cylindrical in shape. The top of the lifting pipe 1 is provided with a sludge inlet, and the bottom of the lifting pipe 1 is provided with a sludge outlet 2. A return water device is provided inside the lifting pipe 1, wherein the bottom of the return water device passes through the sludge outlet 2, and the return water device can be adjusted up and down relative to the lifting pipe 1 to achieve sealing and opening of the sludge outlet 2. During operation, the lifting pipe 1 is gradually lowered into the vertical shaft using a hoisting device. As the pipe comes into contact with the mud, the return water device is lifted first, and some mud enters from the discharge port 2. Once the pipe is fully inside the mud, a large amount of mud enters from the inlet at the top of the pipe. When the mud is full, the pipe is lifted, and under its own weight, the return water device resets, sealing the discharge port 2. After the pipe reaches the ground, it is placed on the surface, with the bottom of the return water device in contact with the ground. The return water device then rises under the pressure of the pipe and the mud, entering the pipe and opening the discharge port 2, allowing the mud to be discharged smoothly. The operation is simple and quick, with a simple structure and easy maintenance. It effectively solves the problem of insufficient head of ordinary submersible pumps in deep wells, greatly improving the efficiency of mud removal and the working depth.

[0019] Furthermore, the return water device includes a sealing part 3 located inside the slurry lifting pipe 1. A connecting rod 4 is provided at the bottom of the sealing part 3, and the connecting rod 4 is movably inserted into the slurry discharge port 2. The size of the bottom end of the sealing part 3 is larger than the size of the slurry discharge port 2 to ensure a sealing effect on the slurry discharge port 2. Preferably, the sealing part 3 is a conical structure with the tip pointing upwards. This design facilitates the flow of slurry down its slope during discharge, avoiding the accumulation of slurry on its top as it is a flat structure. At the same time, during ground discharge, the sealing part 3 can be moved within the slurry lifting pipe 1 by repeatedly moving the lifting pipe 1 up and down, using its tip to disturb the viscous slurry and facilitate its discharge.

[0020] A limiting part 5 is provided at the bottom of the connecting rod 4. The size of the limiting part 5 is larger than the size of the slurry discharge port 2. This design prevents the connecting rod 4 from entering the slurry lifting pipe 1 during slurry discharge and when the lifting pipe 1 initially enters the shaft. The bottom of the limiting part 5 has a pointed structure to reduce the resistance when the lifting pipe 1 enters the shaft. Preferably, the limiting part 5 is a hollow conical frame. This design allows for smooth discharge of slurry during slurry discharge using the hollow space of the limiting part 5. In this invention, the limiting part 5, the sealing part 3, and the connecting rod 4 are all made of steel. The sealing part 3 is preferably a solid structure to increase its own weight and ensure that the entire return water device is lowered by gravity during the lifting of the lifting pipe 1, thus sealing the slurry discharge port 2.

[0021] Furthermore, an inclined guide slope 6 is provided on the upper side of the slurry outlet 2 along the circumferential direction. The guide slope 6 forms an inverted frustum shape. This arrangement helps the slurry to smoothly enter the slurry outlet 2 during slurry discharge and avoids the accumulation and residue of slurry on the bottom wall of the slurry lifting pipe 1 around the slurry outlet 2. In addition, a frustum-shaped sealing plug 7 is provided at the bottom of the sealing part 3. The diameter of the sealing plug 7 increases from bottom to top, and the diameter of its top is larger than the diameter of the slurry outlet 2. The sealing plug 7 can better cooperate with the guide slope 6 to complete the sealing function. The slope of the sealing plug 7 is preferably the same as the slope of the guide slope 6. When the sealing plug 7 seals the slurry outlet 2, the sealing plug 7 and the guide slope 6 can change from point contact to surface contact, ensuring the sealing effect.

[0022] Furthermore, in this embodiment, a slurry collecting hopper 8 is provided at the top of the slurry lifting pipe 1. The slurry collecting hopper 8 has a structure that is large at the top and small at the bottom, which facilitates the smooth entry of slurry into the slurry lifting pipe 1. In addition, multiple connecting ear plates 9 are provided at intervals on the upper periphery of the slurry lifting pipe 1 for installing wire ropes and connecting them with the lifting equipment.

Claims

1. A liquid sludge lifting device for vertical shafts, characterized in that: The device includes a slurry lifting pipe, with a slurry inlet at the top and a slurry outlet at the bottom. A water return device is installed inside the slurry lifting pipe, with its bottom extending through the slurry outlet. The water return device can be adjusted up and down relative to the slurry lifting pipe to seal and open the slurry outlet.

2. The vertical shaft liquid sludge lifting device according to claim 1, characterized in that: The water return device includes a sealing part located inside the slurry lifting pipe, and a connecting rod is provided at the bottom of the sealing part, which is movably inserted into the slurry discharge port.

3. The vertical shaft liquid sludge lifting device according to claim 2, characterized in that: The sealing part is a conical structure with the tip pointing upwards.

4. The vertical shaft liquid sludge lifting device according to claim 3, characterized in that: The bottom of the connecting rod is provided with a limiting part, the size of which is larger than the size of the slurry discharge port.

5. The vertical shaft liquid sludge lifting device according to claim 4, characterized in that: The bottom of the limiting part has a pointed structure.

6. The vertical shaft liquid sludge lifting device according to claim 5, characterized in that: The limiting part is a hollowed-out conical frame.

7. The vertical shaft liquid sludge lifting device according to claim 3, characterized in that: An inclined guide slope is provided on the upper side of the discharge port along the circumferential direction, and the guide slope forms an inverted frustum shape.

8. The vertical shaft liquid sludge lifting device according to claim 7, characterized in that: The bottom of the sealing part is provided with a frustum-shaped sealing plug, the diameter of which increases from bottom to top, and the diameter of the top of the sealing plug is larger than the diameter of the slurry discharge port.

9. The vertical shaft liquid sludge lifting device according to claim 1, characterized in that: The top of the slurry lifting pipe is equipped with a slurry collecting hopper.

10. The vertical shaft liquid sludge lifting device according to claim 1, characterized in that: The upper circumference of the slurry lifting pipe is provided with multiple connecting ear plates at intervals.

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