CN216382678U - Switching valve for slurry or gangue slurry pipeline - Google Patents

Abstract

A switching valve for a slurry or gangue slurry pipeline belongs to a coal mine paste filling switching valve. The front end and the rear end of the rack are respectively connected with a feeding fixed plate and a discharging fixed plate, a discharging pipe is connected to a discharging port at the upper part of the discharging fixed plate, and the discharging end of the S swing pipe is connected with the discharging pipe through a sealing sleeve; two discharge ports are arranged at the lower part of the feeding fixed plate and can be butted with the pipe orifice of the feeding section of the S swing pipe; two groups of telescopic oil cylinders at the lower end of the feeding fixing plate are connected with a feeding pipe, and oil cylinder pistons inside the telescopic oil cylinders are of a pipe cavity structure; the S swing pipe is sequentially connected with a connecting seat, a hinged shaft and a guide shaft; one end of the swing oil cylinder is fixed on the frame; the guide shaft passes through a guide sleeve embedded on the front fixing plate; the fixed sleeve is connected to the guide shaft; the other end of the swing oil cylinder is connected with a connecting seat of the S swing pipe, and the swing oil cylinder pushes the S swing pipe to be converted between the two feeding pipes. The advantages are that: simple structure is reasonable, wear-resisting, corrosion-resistant, easy operation: the hoisting, dismounting and maintenance are convenient.

Description

Switching valve for slurry or gangue slurry pipeline

Technical Field

The utility model relates to a coal mine paste filling switching valve, in particular to a switching valve for a slurry or gangue slurry pipeline.

Background

At present, a coal mine paste filling switching valve is a valve which is used for interchanging feeding of two sets of pumping systems according to requirements and realizes a switching function by the valve, and is designed by utilizing an S swing pipe structure principle in the form of the existing switching valve; the existing switching valve is mainly structured by a screw rod and a handle to transmit opening and closing force in a rotating way; the sealing of the valve body is mostly low pressure and the feeding and discharging are directly communicated by pipelines.

The paste filling of the coal mine is to convey the paste into a filling system by two concrete pumps in turn, and the switching of the two concrete pumps is realized by detaching a quick just-connected pipe clamp connected with a pumping pipeline and a main pipeline. The switching method needs to be stopped, the high-pressure seal of the pipe clamp and the joint needs to be replaced for many times, the connecting bolt is fastened frequently, the working efficiency is low, and the labor intensity is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a switching valve for a slurry or gangue slurry pipeline, which solves the problems that the main pipeline needs to be shut down when the ports of the paste pipelines are switched, a pipe clamp and a high-pressure seal at a joint need to be replaced for many times, connecting bolts are fastened frequently, the working efficiency is low, and the labor intensity is high.

The purpose of the utility model is realized as follows: the switching valve includes: the device comprises a discharge pipe, a sealing sleeve, an S swing pipe, a frame, a connecting seat, a hinged shaft, a guide sleeve, a fixing sleeve, a feed pipe, a telescopic oil cylinder, a feed fixing plate, a discharge fixing plate, a high-pressure sealing assembly, a swing oil cylinder and a positioning block;

the front end and the rear end of the rack are respectively connected with a feeding fixed plate and a discharging fixed plate, the upper part of the discharging fixed plate is provided with a discharging hole, the discharging hole of the discharging fixed plate is connected with a discharging pipe, the discharging pipe positioned on the inner side of the discharging fixed plate penetrates into the discharging end of the S swinging pipe, and the discharging end of the S swinging pipe is connected with the discharging pipe through a sealing sleeve;

the lower part of the feeding fixing plate is provided with two discharge ports, the two discharge ports can be in butt joint with the pipe orifice of the feeding section of the S swing pipe, and the outer wall of the feeding section of the S swing pipe is connected with a high-pressure sealing assembly; the lower end of the feeding fixing plate is provided with two groups of telescopic oil cylinders, the end parts of the telescopic oil cylinders are fixedly connected with a feeding pipe, pistons are arranged inside the telescopic oil cylinders, the centers of the oil cylinder pistons are of pipe cavity structures and used for flowing paste, and the discharge ends of the piston oil cylinders are connected with or separated from the S swing pipes through the movement of the oil cylinder pistons;

the S swing pipe is sequentially connected with a connecting seat, a hinged shaft and a guide shaft; and is positioned above the swinging pipe; s the swing pipe can rotate by taking the hinge shaft as a shaft; one end of the swing oil cylinder is fixed on the frame; the guide sleeve is embedded on the front fixing plate, and the guide shaft penetrates through the guide sleeve; the fixed sleeve is connected to the guide shaft and positioned on the outer side of the front fixed plate, and the fixed sleeve is used for fixing the guide shaft; the other end of the swing oil cylinder is connected with a connecting seat of the S swing pipe, and the swing oil cylinder pushes the S swing pipe to be converted between the two feeding pipes.

Has the advantages that: due to the adoption of the scheme, the switching valve for the slurry or gangue slurry pipeline realizes the function that the S swing pipe of the two sets of pumping systems is switched to the main pipeline system to be conveyed by the hydraulic control swing oil cylinder as required: the valve is used for pressing the joint by the tight-jacking oil cylinder, so that the sealing function of the joint is realized.

The S-shaped swing pipe and the end head grinding surface parts of the switching valve for the slurry or gangue slurry pipeline are made of silicon-manganese-containing metal materials, the inner wall of the S-shaped swing pipe is attached with a wear-resistant layer, and the copper-plated surface of the working base is plated with hard chromium, so that the abrasion resistance and the service life of the valve body are improved. The problems that the machine needs to be stopped when the ports of the paste pipelines of the main pipeline are switched, the high-pressure seal of the pipe clamp and the connection part needs to be replaced for multiple times and the connection bolt is fastened frequently, the working efficiency is low, and the labor intensity is high are solved, and the aim of the utility model is achieved.

The advantages are that: a diverter valve for mud or waste rock thick liquid pipeline simple structure is reasonable, wear-resisting, corrosion-resistant, easy operation: effectively satisfied the switching of one set of pipeline ejection of compact of two sets of pipeline feeding, removed the complicated work of dismantling pipe strap and junction high-pressure seal from, improved lotion conveying efficiency to structurally solved the developments high-pressure seal at S pendulum pipe both ends. The valve is controlled by a hydraulic element, the whole frame support is stable, and the lifting, the dismounting and the maintenance are convenient.

Drawings

FIG. 1 is a block diagram of the present invention.

Fig. 2 is a right side view of fig. 1.

Fig. 3 is a top view of fig. 1.

Fig. 4 is a perspective view of the present invention.

In the figure, 1, discharge pipe; 2. sealing sleeves; 3. s, swinging a pipe; 4. a frame; 5. a connecting seat; 6. hinging a shaft; 7. a guide shaft; 8. a guide sleeve; 9. fixing a sleeve; 10. a feed pipe; 11. a telescopic oil cylinder; 12. a feeding fixing plate; 13. a discharge fixing plate; 14. a high pressure seal assembly; 15. a swing oil cylinder; 16. positioning blocks; 11-1 and an oil cylinder piston.

Detailed Description

Example 1: the switching valve includes: the device comprises a discharge pipe 1, a seal sleeve 2, an S swing pipe 3, a frame 4, a connecting seat 5, a hinge shaft 6, a guide shaft 7, a guide sleeve 8, a fixed sleeve 9, a feed pipe 10, a telescopic oil cylinder 11, a feed fixed plate 12, a discharge fixed plate 13, a high-pressure seal assembly 14, a swing oil cylinder 15 and a positioning block 16;

the front end and the rear end of the frame 4 are respectively connected with a feeding fixed plate 12 and a discharging fixed plate 13, the upper part of the discharging fixed plate 13 is provided with a discharging hole, the discharging hole of the discharging fixed plate 13 is connected with a discharging pipe 1, the discharging pipe 1 positioned on the inner side of the discharging fixed plate 13 penetrates into the discharging end of the S swing pipe 3, and the discharging end of the S swing pipe 3 is connected with the discharging pipe 1 through a sealing sleeve 2;

the lower part of the feeding fixing plate 12 is provided with two discharge ports, the two discharge ports can be in butt joint with the pipe orifice of the feeding section of the S swing pipe, and the outer wall of the feeding section of the S swing pipe is connected with a high-pressure sealing assembly 14; the lower end of a feeding fixing plate 12 is provided with two groups of telescopic oil cylinders 11, the end parts of the telescopic oil cylinders 11 are fixedly connected with a feeding pipe 10, pistons 11-1 are arranged inside the telescopic oil cylinders 11, the centers of the oil cylinder pistons 11-1 are of pipe cavity structures and are used for flowing paste, and the discharge ends of the piston oil cylinders 11-1 are connected with or separated from an S swing pipe 3 through the movement of the oil cylinder pistons 11-1;

the S swing pipe 3 is sequentially connected with a connecting seat 5, a hinge shaft 6 and a guide shaft 7; and is positioned above the S swing pipe 3; s the swing pipe 3 can rotate by taking the hinge shaft 6 as an axis; one end of the swing oil cylinder 15 is fixed on the frame 4; the guide sleeve 8 is embedded on the front fixing plate 12, and the guide shaft 7 penetrates through the guide sleeve 8; the fixed sleeve 9 is connected to the guide shaft 7 and positioned on the outer side of the front fixed plate 12, and the fixed sleeve 9 is used for fixing the guide shaft 7; the other end of the swing oil cylinder 15 is connected with the connecting seat 5 of the S swing pipe 3, and the swing oil cylinder 15 pushes the S swing pipe 3 to be switched between the two feeding pipes 10.

In operation, the two feed inlets of the valve are respectively connected with the input ports of the two concrete pumps; the discharge port of the valve is connected with the main pipeline of the filling system. When the feed port needs to be switched, the hydraulic system operates the swing oil cylinder to switch the pipe orifice of the S swing pipe to the working feed port, then the telescopic oil cylinder is used for applying pressure, and the feed port end sealing assembly is pressed for sealing; when the next round of switching is needed, the unloading discharge end of the telescopic oil cylinder withdraws from the S swing pipe, the swing oil cylinder pushes the S swing pipe to be switched to the working feed inlet, then the telescopic oil cylinder applies pressure again to connect the feed inlet of the S swing pipe, and the operation is repeated once.

The switching valve for the slurry or gangue slurry pipeline is a valve which is used for two sets of filling and pumping systems to exchange materials according to requirements and realizes the switching function by the valve. As further described in connection with fig. 1, 2 and 3:

1. s, a swing pipe 3: the function of switching the first feeding hole and the second feeding hole is realized; the upper end of the part is provided with a connecting seat which is provided with a guide shaft.

2. A guide device: when the pipeline is switched, the swing oil cylinder 15 is operated by the hydraulic system to enable the S swing pipe to do circular motion through the guide shaft 7 and the guide sleeve 8.

3. Telescopic oil cylinder (11): when the pipelines are switched, the S swing pipe 3 does circular motion, and the positioning block is stopped at the position of the feed port 1 or the feed port 2 at present; and then the telescopic cylinder 11 presses the high-pressure sealing assembly 14 to seal.

4. Feed inlet high pressure seal 14: the structure of the telescopic oil cylinder realizes sealing under the pressure of the telescopic oil cylinder. The initial low pressure is sealed by a rubber sealing ring and a polytetrafluoroethylene sealing ring, and the normal high pressure working condition is sealed by a copper ring and the polytetrafluoroethylene sealing ring.

5. When the valve works, the upper stop ring of the telescopic oil cylinder is always in a state of tightly propping high pressure to realize high-pressure sealing. The work of the switching valve for the slurry or gangue slurry pipeline is controlled by the operation of the hydraulic reversing valve.

The two feed pipes 10 of the valve are respectively connected with the output pipelines of the two sets of pumping systems; the discharge pipe 1 is connected with a filling main pipeline. When the two sets of pumping systems work respectively, the feed inlet 1 needs to be switched; or when the feeding hole 2 is arranged, the hydraulic system controls the swing oil cylinder 15 to switch the S swing pipe 3 to the working feeding hole, then the telescopic oil cylinder 11 applies pressure, and the feeding hole end face sealing element 14 is pressed to seal. The initial low pressure is sealed by a rubber sealing ring, and the high pressure is sealed by a copper ring and a polytetrafluoroethylene sealing ring; when the next round of switching is needed, the telescopic oil cylinder 11 unloads and withdraws the S swing pipe 3 to withdraw, and the swing oil cylinder 15 pushes the S swing pipe 3 to do circular motion to switch to the feeding hole 2 or the feeding hole 1 which needs to work.

Claims (1)

1. A diverter valve for mud or waste rock thick liquid pipeline, characterized by: the switching valve includes: the device comprises a discharge pipe, a sealing sleeve, an S swing pipe, a frame, a connecting seat, a hinged shaft, a guide sleeve, a fixing sleeve, a feed pipe, a telescopic oil cylinder, a feed fixing plate, a discharge fixing plate, a high-pressure sealing assembly, a swing oil cylinder and a positioning block;

the front end and the rear end of the rack are respectively connected with a feeding fixed plate and a discharging fixed plate, the upper part of the discharging fixed plate is provided with a discharging hole, the discharging hole of the discharging fixed plate is connected with a discharging pipe, the discharging pipe positioned on the inner side of the discharging fixed plate penetrates into the discharging end of the S swinging pipe, and the discharging end of the S swinging pipe is connected with the discharging pipe through a sealing sleeve;

the lower part of the feeding fixing plate is provided with two discharge ports, the two discharge ports can be in butt joint with the pipe orifice of the feeding section of the S swing pipe, and the outer wall of the feeding section of the S swing pipe is connected with a high-pressure sealing assembly; the lower end of the feeding fixing plate is provided with two groups of telescopic oil cylinders, the end parts of the telescopic oil cylinders are fixedly connected with a feeding pipe, pistons are arranged inside the telescopic oil cylinders, the centers of the oil cylinder pistons are of pipe cavity structures and used for flowing paste, and the discharge ends of the piston oil cylinders are connected with or separated from the S swing pipes through the movement of the oil cylinder pistons;

the S swing pipe is sequentially connected with a connecting seat, a hinged shaft and a guide shaft; and is positioned above the swinging pipe; s the swing pipe can rotate by taking the hinge shaft as a shaft; one end of the swing oil cylinder is fixed on the frame; the guide sleeve is embedded on the front fixing plate, and the guide shaft penetrates through the guide sleeve; the fixed sleeve is connected to the guide shaft and positioned on the outer side of the front fixed plate, and the fixed sleeve is used for fixing the guide shaft; the other end of the swing oil cylinder is connected with a connecting seat of the S swing pipe, and the swing oil cylinder pushes the S swing pipe to be converted between the two feeding pipes.

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