CN212338273U - Rotary distributing valve for coal mine paste filling - Google Patents
Rotary distributing valve for coal mine paste filling Download PDFInfo
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- CN212338273U CN212338273U CN202021544757.4U CN202021544757U CN212338273U CN 212338273 U CN212338273 U CN 212338273U CN 202021544757 U CN202021544757 U CN 202021544757U CN 212338273 U CN212338273 U CN 212338273U
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Abstract
A rotary distribution valve for coal mine paste filling comprises a hexagonal prism-shaped valve body, a cylindrical valve core arranged in the valve body, a feeding hole arranged on the valve body, a distribution hole arranged on the valve body, a discharge hole arranged on the valve body, a channel arranged on the valve core, a driving assembly arranged on the valve body and used for driving the valve core to rotate, and a polytetrafluoroethylene lining arranged between the valve body and the valve core; the shaft burning phenomenon between the valve body and the valve core is avoided by arranging the polytetrafluoroethylene lining between the valve body and the valve core and utilizing the characteristics of high lubrication, non-adhesiveness, corrosion resistance, sealing performance and the like of polytetrafluoroethylene; meanwhile, the gap between the valve body and the valve core is sealed, and the phenomenon of liquid mixing between a water feeding port and a material distributing port before filling is avoided; the cloth rotating and switching resistance is reduced; the reliability of the use of the rotary distribution valve is ensured and the safety of the use of the rotary distribution valve is improved.
Description
Technical Field
The utility model relates to a colliery fills application, concretely relates to colliery lotion fills with revolving cloth valve.
Background
Coal mine paste filling, namely processing coal gangue, fly ash and other materials into aggregates with certain lumpiness, mixing the aggregates with cementing materials and water according to a certain proportion and uniformly stirring the aggregates with the cementing materials and the water into paste, filling a goaf behind a working face support under the action of gravity or pump pressure to form a overlying strata supporting system, controlling ground surface movement caused by coal mining within the allowable range of a building, and realizing green mining of coal mines.
The patent (2015104918981) provides a rotary distribution valve, in the technical scheme, a valve core channel adopts a T-shaped structure, paste is filled in the channel, the phenomenon of slurry accumulation and solidification is easily formed, the smoothness of a pipeline is influenced, and the switching resistance of the rotary distribution valve is increased; meanwhile, in the prior art, most of valve bodies and valve cores are made of alloy steel, the filling paste permeates gaps between the valve bodies and the valve cores, shaft burning is easily caused in the process of switching the rotary distribution valves, especially, slurry leakage safety production accidents can occur when the valve cores cannot be switched back to a straight-through state during reverse operation after filling of the paste if the shaft burning phenomenon occurs, and the safety production of filling of the paste is directly influenced.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a colliery lotion fills with revolving cloth valve to reach and avoid appearing burning the axle between valve body and the case and guarantee the purpose of reliability and security that revolving cloth valve used.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a rotary distribution valve for coal mine paste filling comprises a hexagonal prism-shaped valve body, a cylindrical valve core arranged in the valve body, a feeding hole arranged on the valve body, a distribution hole arranged on the valve body, a discharge hole arranged on the valve body, a channel arranged on the valve core, a driving assembly arranged on the valve body and used for driving the valve core to rotate, and a polytetrafluoroethylene lining arranged between the valve body and the valve core;
the valve body and the valve core are placed in the same direction, and the outer surface of the valve core is plated with hard chromium;
the feeding hole, the material distribution hole and the material discharge hole are distributed on the side wall of the valve body in a shape like a Chinese character 'pin', the feeding hole and the material discharge hole are symmetrically arranged on two sides of the valve body, and the material distribution hole is arranged above the valve body;
the channel, the feed inlet, the discharge outlet and the distributing port are located in the same plane, and the plane where the channel is located is perpendicular to the axis of the valve core.
The shaft burning phenomenon between the valve body and the valve core is avoided by arranging the polytetrafluoroethylene lining between the valve body and the valve core and utilizing the characteristics of polytetrafluoroethylene, such as high lubrication, non-adhesiveness, corrosion resistance, sealing performance and the like; meanwhile, the gap between the valve body and the valve core is sealed, and the phenomenon of liquid mixing between a water feeding port and a material distributing port before filling is avoided; the cloth rotating and switching resistance is reduced; the reliability of the use of the rotary distribution valve is ensured and the safety of the use of the rotary distribution valve is improved.
Preferably, the channel is arcuate. Through being T type pipeline among the circular-arc passageway replacement prior art, avoid the packing to pile up at the pipeline probably, avoid the long-pending thick liquid problem of passageway, reduce and switch resistance and guarantee the normal use and the safety in production of rotary distribution valve.
Preferably, the driving assembly comprises a base, four swing oil cylinders arranged on the base, a swing gear arranged between the four swing oil cylinders, two swing racks arranged in the swing oil cylinders and meshed with the swing gear, and a bidirectional lock for locking the swing oil cylinders;
the base is arranged at the end part of the valve body, and the oscillating gear is in key connection with the end part of the valve core;
the bidirectional lock is arranged on the side wall of the valve body. The flange type double-rack swing hydraulic cylinder structure consisting of the base, four swing oil cylinders, a swing gear, two swing racks and the bidirectional lock increases the torque and improves the reliability of equipment.
The utility model has the advantages of as follows:
1. the shaft burning phenomenon between the valve body and the valve core is avoided by arranging the polytetrafluoroethylene lining between the valve body and the valve core and utilizing the characteristics of polytetrafluoroethylene, such as high lubrication, non-adhesiveness, corrosion resistance, sealing performance and the like; meanwhile, the gap between the valve body and the valve core is sealed, and the phenomenon of liquid mixing between a water feeding port and a material distributing port before filling is avoided; the cloth rotating and switching resistance is reduced; the reliability of the use of the rotary distribution valve is ensured and the safety of the use of the rotary distribution valve is improved.
2. The utility model discloses a be T type pipeline among the circular-arc passageway replacement prior art, avoid the filling material in the accumulational possibility of pipeline, avoid the long-pending thick liquid problem of passageway, reduce and switch the resistance and guarantee to revolve the normal use and the safety in production of cloth valve.
3. The utility model discloses a flange formula double rack swing pneumatic cylinder structure of constituteing by base, four swing hydro-cylinders, a swing gear, two swing racks and two-way lock has increaseed the moment of torsion, improve equipment's reliability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a front sectional view of a rotary distribution valve for filling paste in a coal mine, which is disclosed by the embodiment of the utility model;
fig. 2 is a schematic cross-sectional view of a driving assembly in a rotary distribution valve for filling paste in a coal mine, which is disclosed by the embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a rotary distribution valve for filling paste in a coal mine, which is disclosed in the embodiment of the present invention, in a straight-through state;
fig. 4 is a schematic cross-sectional view of a coal mine paste filling rotary distribution valve in a distribution state, which is disclosed by the embodiment of the utility model;
the numbers in the figures represent the respective further part names:
1. valve body 2, valve core 3, feed inlet 4, material distribution port 5, discharge port 6, channel 71 and base
72. The swing oil cylinder 73, the swing gear 74, the swing rack 75, the bidirectional lock 8 and the polytetrafluoroethylene lining.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The shaft burning phenomenon between the valve body and the valve core is avoided by arranging the polytetrafluoroethylene lining between the valve body and the valve core and utilizing the characteristics of polytetrafluoroethylene, such as high lubrication, non-adhesiveness, corrosion resistance, sealing performance and the like; meanwhile, the gap between the valve body and the valve core is sealed, and the phenomenon of liquid mixing between a water feeding port and a material distributing port before filling is avoided; the cloth rotating and switching resistance is reduced; the reliability of the use of the rotary distribution valve is ensured and the safety of the use of the rotary distribution valve is improved.
The present invention will be described in further detail with reference to examples and embodiments.
As shown in fig. 1-4, a coal mine paste filling rotary distribution valve comprises a hexagonal prism-shaped valve body 1, a cylindrical valve core 2 arranged in the valve body, a feeding port 3 arranged on the valve body, a distribution port 4 arranged on the valve body, a discharge port 5 arranged on the valve body, a channel 6 arranged on the valve core 2, a driving assembly arranged on the valve body 1 and driving the valve core 2 to rotate, and a polytetrafluoroethylene lining 8 arranged between the valve body 1 and the valve core 2;
the placing directions of the valve body and the valve core are consistent;
the feeding hole 3, the material distributing hole 4 and the material discharging hole 5 are distributed on the side wall of the valve body 1 in a shape like Chinese character 'pin', the feeding hole 3 and the material discharging hole 5 are symmetrically arranged on two sides of the valve body 1, and the material distributing hole 4 is arranged above the valve body 1;
the channel 6, the feed port 3 and the discharge port 5 are positioned in the same plane, and the plane of the channel 6 is vertical to the axis of the valve core 2; the channel 6 is arc-shaped.
The driving assembly comprises a base 71, four swing oil cylinders 72 arranged on the base 71, a swing gear 83 arranged between the four swing oil cylinders 72, two swing racks 74 arranged in the swing oil cylinders 72 and meshed with the swing gear, and a bidirectional lock 75 for locking the swing oil cylinders 72;
the base 71 is arranged at the end part of the valve body 1, and the swing gear 74 is in key connection with the end part of the valve core 2;
the bidirectional lock 75 is provided on a side wall of the valve body 1.
The utility model discloses a concrete application steps as follows: the utility model provides a rotary distributing valve lotion fills working process as follows:
when the filling working face paste needs to be filled, as shown in fig. 1, 2 and 4, the cloth rotating valve is switched from a straight-through state to a material distributing state, under the action of the swing oil cylinder 72, the two swing racks 74 move relatively and drive the swing gear 73 to rotate 120 degrees clockwise, the swing gear 73 and the valve core 2 synchronously rotate 120 degrees clockwise through key connection, the feed port 3 and the material distributing port 4 are connected through the channel 6 in the valve core 2, and the switching of the channel of the actual filling paste is realized.
After filling the filling working face with paste, as shown in fig. 1, 2 and 3, the rotary distributing valve needs to be switched from a distributing state to a through state, two swing racks 74 are pushed in reverse direction to move relatively under the action of a swing oil cylinder 72 to drive a swing gear 73 to rotate 120 degrees anticlockwise, the swing gear 73 and a valve core 2 are connected through a key and also synchronously rotate 120 degrees anticlockwise, a feed port 3 is connected with a discharge port 5 by virtue of a channel 6 in the valve core 2, and the channels of the actual filling paste are switched.
And the swing oil cylinder 72 is locked by the bidirectional lock 8 arranged on the side surface of the valve body 1, so that the possibility that the rotary distribution valve rotates under the impact force of the filling paste in a straight-through and distributing state is avoided, and the use reliability of the rotary distribution valve is ensured.
Through the mode, the pressure monitoring valve for filling the paste in the coal mine, provided by the utility model, has the advantages that the polytetrafluoroethylene lining is arranged between the valve body and the valve core, and the shaft burning phenomenon between the valve body and the valve core is avoided by utilizing the characteristics of high lubrication, non-adhesiveness, corrosion resistance, sealing performance and the like of polytetrafluoroethylene; meanwhile, the gap between the valve body and the valve core is sealed, and the phenomenon of liquid mixing between a water feeding port and a material distributing port before filling is avoided; the cloth rotating and switching resistance is reduced; the reliability of the use of the rotary distribution valve is ensured and the safety of the use of the rotary distribution valve is improved.
What has just been said above is the preferred embodiment of the coal mine lotion fills with revolving cloth valve that the utility model discloses, should point out, to the ordinary skilled person in the art, under the prerequisite that does not deviate from the utility model discloses the inventive concept can also make a plurality of deformations and improvements, and these all belong to the utility model discloses a protection scope.
Claims (3)
1. The rotary distribution valve for coal mine paste filling is characterized by comprising a hexagonal prism-shaped valve body, a cylindrical valve core arranged in the valve body, a feeding hole arranged on the valve body, a distribution hole arranged on the valve body, a discharge hole arranged on the valve body, a channel arranged on the valve core, a driving assembly arranged on the valve body and used for driving the valve core to rotate, and a polytetrafluoroethylene lining arranged between the valve body and the valve core;
the placing directions of the valve body and the valve core are consistent;
the feeding hole, the material distribution hole and the material discharge hole are distributed on the side wall of the valve body in a shape like a Chinese character 'pin', the feeding hole and the material discharge hole are symmetrically arranged on two sides of the valve body, and the material distribution hole is arranged above the valve body;
the channel, the feed inlet and the discharge outlet are positioned in the same plane, and the plane where the channel is positioned is vertical to the axis of the valve core.
2. The coal mine paste filling rotary distribution valve according to claim 1, wherein the channel is arc-shaped.
3. The rotary distribution valve for coal mine paste filling according to claim 1, wherein the driving assembly comprises a base, two swing cylinders arranged on the base, a swing gear arranged between the two swing cylinders, a swing rack arranged in the swing cylinder and meshed with the swing gear, and a bidirectional lock for locking the swing cylinders;
the base is arranged at the end part of the valve body, and the oscillating gear is in key connection with the end part of the valve core;
the bidirectional lock is arranged on the side wall of the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021544757.4U CN212338273U (en) | 2020-07-30 | 2020-07-30 | Rotary distributing valve for coal mine paste filling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021544757.4U CN212338273U (en) | 2020-07-30 | 2020-07-30 | Rotary distributing valve for coal mine paste filling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212338273U true CN212338273U (en) | 2021-01-12 |
Family
ID=74082251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021544757.4U Active CN212338273U (en) | 2020-07-30 | 2020-07-30 | Rotary distributing valve for coal mine paste filling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212338273U (en) |
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2020
- 2020-07-30 CN CN202021544757.4U patent/CN212338273U/en active Active
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