CN217815613U

CN217815613U - Concrete pump discharge port connecting device for coal mine

Info

Publication number: CN217815613U
Application number: CN202221031886.2U
Authority: CN
Inventors: 焦方毅; 冯建志; 陈雷涛; 张宏涛; 王保贵
Original assignee: Shaanxi Coal Mining Hancheng Mining Co Ltd
Current assignee: Shaanxi Coal Mining Hancheng Mining Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-11-15
Anticipated expiration: 2032-04-29

Abstract

The utility model aims at providing a concrete pump discharge gate connecting device for coal mine, include: the communicating pipe is a conical pipe and is provided with a first connecting end and a second connecting end, and the second connecting end is communicated with the cleaning mechanism; the discharge pipe is positioned between the first connecting end and the second connecting end and is communicated with the communicating pipe; coupling mechanism is located between first link and the concrete pump discharge gate, and coupling mechanism includes: the two circular rings are coaxial with the communicating pipe and are respectively fixedly sleeved on the outer edge of the discharge port of the concrete pump and the outer edge of the first connecting end of the communicating pipe; the annular buckle is an annular structure consisting of a first baffle, an annular belt body and a second baffle which are sequentially connected, and two grooves are formed in the inner surface along the direction of the annular buckle, and both the two grooves extend to the second baffle along the first baffle; the two ends of the bolt are respectively connected with the first baffle and the second baffle; it has solved the problem that the discharge gate easily blockked up in the concrete feeding pump for coal mine at present.

Description

Concrete pump discharge port connecting device for coal mine

Technical Field

The utility model belongs to the underground construction field, concretely relates to concrete pump discharge gate connecting device for coal mine.

Background

The mine construction is a comprehensive construction project which mainly uses the mine construction and integrates three projects of mine construction, civil construction and electromechanical installation, and has the advantages of large project amount, complex technology, long construction period, more required equipment and large material consumption. Therefore, careful organization and management must be performed to ensure the quality of the engineering construction and the achievement of the project period goal; in the process of spray anchor support operation under a coal mine or the treatment of a coal bed with a spontaneous combustion tendency, concrete is required to seal the surface of a rock drift or a coal body;

at present, a discharge port in the concrete delivery pump for the coal mine is connected with an external pipeline through a rotary joint or a threaded connection, the two rotary connection modes easily reduce the flow cross section of the discharge port, the discharge port is blocked, and the discharge of concrete is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a concrete pump discharge gate connecting device for coal mine, include:

the communicating pipe is a conical pipe and is provided with a first connecting end and a second connecting end, the pipe diameter of the first connecting end is larger than that of the second connecting end, and the second connecting end is communicated with a cleaning mechanism;

the discharge pipe is positioned between the first connecting end and the second connecting end and is communicated with the communicating pipe, and the discharge pipe is matched with the communicating pipe to increase the concrete moving stroke of the concrete discharge port;

coupling mechanism is located between first link and the concrete pump discharge gate to be linked together between messenger's first link and the concrete pump discharge gate, coupling mechanism includes:

the two circular rings are coaxial with the communicating pipe and are respectively fixedly sleeved on the outer edge of the concrete pump discharge port and the outer edge of the first connecting end of the communicating pipe;

the annular buckle is an annular structure consisting of a first baffle, an annular belt body and a second baffle which are sequentially connected, two grooves are formed in the inner surface along the direction of the annular buckle, and the two grooves extend to the second baffle along the first baffle;

the two ends of the bolt are respectively connected with the first baffle and the second baffle; the circular ring of the concrete pump discharge port and the circular ring of the communicating pipe are respectively positioned in the two grooves of the annular buckle; two grooves of the buckle are matched with the two circular rings to enable the communicating pipe to be hermetically connected with a concrete pump discharge hole.

Further, the cleaning mechanism includes: one end of the cleaning barrel is communicated with the second connecting end of the communicating pipe through a connecting mechanism;

one end of the hydraulic pump is communicated with the cleaning cylinder through a water pipe, and the hydraulic pump is used for injecting water into the cleaning cylinder and cleaning firm concrete on the inner wall of the concrete discharge port;

further, the wiper mechanism still includes: and the expansion sponges are positioned in the cleaning barrel and used for moving and scraping firm concrete on the inner wall of the concrete discharge port under the action of water pressure.

Further, the wiper mechanism still includes: and the ball valve is positioned in the cleaning barrel and is used for preventing the concrete from flowing to the hydraulic pump after being closed.

The utility model has the advantages that: the tapered communicating pipe and the discharging pipe are arranged, so that the slow decrease of the flowing cross section area of the concrete and the effective increase of the moving stroke of the concrete can be realized, and the problems that the discharging port of the concrete is too fast to discharge, the concrete at the discharging port is accumulated, and the discharging port is blocked are solved; through setting up two rings and the cyclic annular buckle of two rings of the outer fringe of concrete pump discharge gate and the outer fringe of the first link end of communicating pipe joint, solved original rotation connected mode can not the closed connection the problem.

Drawings

FIG. 1 is a schematic view of a concrete pump discharge port connecting device for coal mines according to the present invention;

fig. 2 is a schematic structural view of the connection mechanism of the present invention;

fig. 3 is a schematic structural diagram of the middle cleaning mechanism of the present invention.

100, discharging a concrete pump; 200. a communicating pipe; 210. a discharge pipe; 300. a connecting mechanism; 400. a cleaning mechanism; 310. a circular ring; 320. an annular buckle; 321. a groove; 322. a baffle plate; 330. a bolt; 410. a hydraulic pump; 420. a cleaning cylinder; 430. the sponge is expanded.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

The utility model provides a concrete pump discharge gate connecting device for coal mine, as shown in figure 1 and figure 2, include: a connection pipe 200, a discharge pipe 210, and a connection mechanism 300;

the communicating pipe 200 is a tapered pipe and has a first connecting end and a second connecting end, the pipe diameter of the first connecting end is larger than that of the second connecting end, and the second connecting end is communicated with the cleaning mechanism 400; the discharge pipe 210 is positioned between the first connecting end and the second connecting end and is communicated with the communicating pipe 200, and the discharge pipe 210 is matched with the communicating pipe 200 to increase the concrete moving stroke of the concrete discharge port;

the tapered communicating pipe 200 can realize the slow decreasing of the flowing cross-sectional area of the concrete; the connection pipe 200 and the discharge pipe 210 increase the moving stroke of concrete of the concrete pump discharge port 100.

The connecting mechanism 300 is located between the first connecting end and the concrete pump discharge port 100, and enables the first connecting end to be communicated with the concrete pump discharge port 100, and the connecting mechanism 300 comprises: the two circular rings 310 are coaxial with the communicating pipe 200 and are respectively fixedly sleeved on the outer edge of the concrete pump discharge port 100 and the outer edge of the first connecting end of the communicating pipe 200; the annular buckle 320 is an annular structure formed by a first baffle 322, an annular belt body and a second baffle 322 which are sequentially connected, two grooves 321 are formed in the inner surface along the direction of the annular buckle, and the two grooves 321 extend to the second baffle 322 along the first baffle 322; a bolt 330 having both ends connected to the first barrier 322 and the second barrier 322, respectively; wherein, the circular ring 310 of the concrete pump discharge port 100 and the circular ring 310 of the communicating pipe 200 are respectively positioned in the two grooves 321 of the annular buckle 320; the two grooves 321 of the fastener are matched with the two rings 310 to enable the communicating pipe 200 to be hermetically connected with the concrete pump discharge hole 100.

The slow decrease of the flowing cross section area of the concrete and the effective increase of the moving stroke of the concrete can be realized by arranging the conical communicating pipe 200 and the discharging pipe 210, so that the problems that the discharging port of the concrete is too fast to discharge, the concrete at the discharging port is accumulated and the discharging port is blocked are solved; the problem that the original rotary connection mode cannot be connected in a closed mode is solved through the two circular rings 310 arranged on the outer edge of the concrete pump discharge port 100 and the outer edge of the first connection end of the communication pipe 200 and the annular buckle 320 for clamping the two circular rings 310.

In one embodiment, as shown in fig. 2, since a portion of concrete is adhered to the wall of concrete discharging outlet and the wall of communication pipe 200 after the concrete discharging outlet is used, and if the concrete is not cleaned for a long time, the concrete mass is coagulated, a cleaning mechanism 400 is provided, which includes: a cleaning cylinder 420, one end of which is communicated with the second connection end of the communication pipe 200 through the connection mechanism 300; one end of the hydraulic pump 410 is communicated with the cleaning cylinder 420 through a water pipe, and the hydraulic pump 410 is used for injecting water into the cleaning cylinder 420 and cleaning firm concrete holes on the inner wall of the concrete outlet.

In one embodiment, as shown in fig. 3, in order to clean the concrete discharging hole wall and the condensed concrete of the communicating pipe 200 in a targeted manner, after the concrete discharging is completed, a plurality of expansion sponges 430 can be placed in advance in the cleaning cylinder 420, the expansion sponges 430 are used for scraping the firm concrete on the inner wall of the concrete discharging hole under the action of water pressure, and meanwhile, the expansion sponges 430 also have the advantage of scraping the pipe wall of the conical pipe along with the expansion of the pipe diameter, and can be flushed to the concrete hopper along the concrete discharging hole under the action of water pressure, so that the concrete can be picked from the concrete hopper and reused.

In one embodiment, since the concrete is likely to flow toward the cleaning bowl 420 along the connection pipe 200 during the discharging of the concrete, a ball valve is provided in the cleaning bowl 420 in order to prevent the cleaning bowl 420 from being clogged.

Claims

1. The utility model provides a concrete pump discharge gate connecting device for coal mine which characterized in that includes:

the communicating pipe (200) is a conical pipe and is provided with a first connecting end and a second connecting end, the pipe diameter of the first connecting end is larger than that of the second connecting end, and the second connecting end is communicated with a cleaning mechanism (400);

the discharge pipe (210) is positioned between the first connecting end and the second connecting end and is communicated with the communicating pipe (200), and the discharge pipe (210) is matched with the communicating pipe (200) to increase the concrete moving stroke of the concrete discharge port;

the connecting mechanism (300) is positioned between the first connecting end and the concrete pump discharge hole (100) and enables the first connecting end and the concrete pump discharge hole (100) to be communicated with each other, and the connecting mechanism (300) comprises:

the two circular rings (310) are coaxial with the communicating pipe (200) and are respectively fixedly sleeved on the outer edge of the concrete pump discharge port (100) and the outer edge of the first connecting end of the communicating pipe (200);

the annular buckle (320) is an annular structure consisting of a first baffle (322), an annular belt body and a second baffle (322) which are sequentially connected, two grooves (321) are formed in the inner surface along the trend of the annular buckle, and the two grooves (321) extend to the second baffle (322) along the first baffle (322);

a bolt (330) having both ends connected to the first baffle (322) and the second baffle (322), respectively; the circular ring (310) of the concrete pump discharge port (100) and the circular ring (310) of the communicating pipe (200) are respectively positioned in the two grooves (321) of the annular buckle (320); the two grooves (321) of the buckle are matched with the two circular rings (310) to enable the communicating pipe (200) to be hermetically connected with the concrete pump discharge hole (100).

2. The concrete pump discharge port connection device for coal mines as set forth in claim 1, wherein the cleaning mechanism (400) comprises:

one end of the cleaning barrel (420) is communicated with the second connecting end of the communicating pipe (200) through the connecting mechanism (300);

and one end of the hydraulic pump (410) is communicated with the cleaning cylinder (420) through a water pipe, and the hydraulic pump (410) is used for injecting water into the cleaning cylinder (420) and cleaning firm concrete on the inner wall of the concrete discharge port.

3. The concrete pump discharge port connecting device for coal mines as set forth in claim 2, wherein the cleaning mechanism (400) further comprises:

the expansion sponges (430) are positioned in the cleaning barrel (420), and the expansion sponges (430) are used for moving and scraping firm concrete on the inner wall of the concrete discharging port under the action of water pressure.

4. The concrete pump discharge port connection device for coal mines as set forth in claim 3, wherein the cleaning mechanism (400) further comprises:

a ball valve located in the cleaning cylinder (420), the ball valve being closed to prevent concrete from flowing to the hydraulic pump (410).