一种煤矿顶板用高压注水装置
By introducing a two-stage filtration mechanism and a limiting mechanism into the high-pressure water injection device, the problem of incomplete water filtration is solved, achieving efficient water purification and convenient maintenance, and improving the water injection effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEILONGJIANG LONGMAY HEGANG MINING CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-07-17
Smart Images
Figure CN224506378U_ABST
Abstract
Claims
1. A high-pressure water injection device for coal mine roof, characterized in that: The device includes a housing, a filter mechanism, and a limiting mechanism. A water inlet pipe is located at the upper side of the housing, and a drain pipe is located at the lower side of the housing. Two sets of filter mechanisms are arranged from top to bottom. Each filter mechanism includes two support plates opposite each other on the inner wall of the housing, a mounting plate between the two support plates, and a filter screen mounted on the mounting plate. The support plates have slots, one end of the mounting plate is inserted into the slot, and one end of the mounting plate penetrates the housing and is fixedly connected to a pressure plate. A rubber sealing ring is fixedly connected to the pressure plate. The limiting mechanism is used to fix the pressure plate. The limiting mechanism includes a support frame, a threaded rod, two movable plates, and a wedge-shaped pressure block disposed on the movable plates. The support frame is disposed on the outer wall of the housing. The threaded rod is rotatably installed in the support frame. The threads at both ends of the threaded rod are in opposite directions. The two movable plates are respectively threaded onto the two ends of the threaded rod. The wedge-shaped pressure block is used to press against the pressure plate.
2. The high-pressure water injection device for coal mine roof according to claim 1, characterized in that: One end of the threaded rod is fixedly connected to a rotating rod, and the end of the rotating rod away from the threaded rod is fixedly connected to a rotating block.
3. The high-pressure water injection device for coal mine roof according to claim 2, characterized in that: A stop rod is slidably inserted on the rotating block, and a plurality of stop grooves corresponding to the stop rod are provided on the support frame. An anti-detachment block is fixedly connected to the stop rod. The anti-detachment block is located between the support frame and the rotating block. A spring is sleeved on the stop rod. One end of the spring abuts against the anti-detachment block, and the other end of the spring abuts against the rotating block.
4. The high-pressure water injection device for coal mine roof according to claim 1, characterized in that: The mounting plate is provided with a material collection trough, and the filter screen is located at the lower end of the material collection trough.
5. The high-pressure water injection device for coal mine roof according to claim 1, characterized in that: The support frame is provided with a limiting groove, and the movable plate is slidably connected to the limiting groove.
6. The high-pressure water injection device for coal mine roof according to claim 1, characterized in that: The drain pipe is equipped with a pipe joint, and the pipe joint is equipped with a control valve.
7. The high-pressure water injection device for coal mine roof according to claim 1, characterized in that: The shell is equipped with casters at the four corners of its bottom.