CN211365864U - Coal dropping pipe flexible connection structure - Google Patents

Abstract

The utility model relates to a coal breakage pipe flexible connection structure, its characterized in that: including the coal breaker inlet tube with establish the coal breakage pipe directly over the coal breaker inlet tube, the mouth of pipe position that coal breaker inlet tube and coal breakage pipe are relative is fixed respectively and is equipped with the support slab with body axial lead vertically, the outer end of support slab all is fixed and is equipped with rather than the vertically flange piece, two flange piece surfaces have been laid and are used for sealing the rubber film of interval between coal breaker inlet tube and the coal breakage pipe mouth of pipe and are used for fixing the clamp plate on the flange piece with the rubber film. The utility model discloses coal breakage pipe flexible connection structure has realized totally enclosed connection structure, improves the connection leakproofness of coal breaker and coal breakage pipe, reduces the pollution of dust, has also reduced the sanitary frequency of manual cleaning, has reduced the cost of labor; meanwhile, the threat to the health of operators is reduced, and safety accidents caused by excessive dust are avoided.

Description

Coal dropping pipe flexible connection structure

The technical field is as follows:

the utility model relates to a coal breakage pipe flexible coupling structure.

Background art:

at present, the dust hazard generated by a coal conveying system is deeply valued, and how to effectively prevent and control the dust of the coal conveying system is a key task of a current thermal power plant, particularly the problem of soft connection breakage and powder leakage between a coal dropping pipe and a coal breaker is a problem which is difficult to solve by coal conveying professionals, so that the original connection mode of a traditional coal breaker and the coal dropping pipe is innovatively optimized, the sealing performance of the coal breaker and the coal dropping pipe is improved, and the dust pollution is reduced.

The inlet of the traditional coal breaker is generally connected with the blanking pipe by adopting a canvas connection mode, and the canvas is easy to damage and accumulate materials under the impact of coal flow with large vertical fall, so that powder leakage is caused, the concentration of indoor dust placed in the equipment exceeds the standard, the health of operators is directly threatened, too much powder is accumulated in the room, and spontaneous combustion is easy to occur under the appropriate conditions of fire coal, so that safety accidents occur; in addition, the cleaning force is high, troubles are caused for enterprises, the production cost and the labor cost are high, and in addition, coal is wet or special coal types, so that coal slime in the soft connection is easy to bond in the transportation process, the coal blockage phenomenon is caused, and the safety production and the power generation requirements of a power plant are influenced.

The inlet and the blanking pipe of the first-stage engineering coal breaker of the Huaneng Luoyuan power plant adopt high-quality rubber materials, and a novel connecting structure which is designed and manufactured aiming at the characteristics of coal flow, prevents powder accumulation, has good flexibility, convenient maintenance, good sealing performance, strong vibration resistance and long service life is provided, so that the sealing performance of the coal breaker and the blanking pipe is improved, the dust pollution is reduced, the equipment maintenance cost and the sanitary cleaning labor cost are reduced, and the operation environment of a coal conveying line is improved.

The invention content is as follows:

an object of the utility model is to provide a coal breakage pipe flexible connection structure, this coal breakage pipe flexible connection structure reasonable in design is favorable to improving the leakproofness of coal breaker and coal breakage pipe, reduces the pollution of dust.

The technical scheme of the utility model as follows:

the utility model discloses coal breakage pipe flexible connection structure, its characterized in that: including the coal breaker inlet tube with establish the coal breakage pipe directly over the coal breaker inlet tube, the mouth of pipe position that coal breaker inlet tube and coal breakage pipe are relative is fixed respectively and is equipped with the support slab with body axial lead vertically, the outer end of support slab all is fixed and is equipped with rather than the vertically flange piece, two flange piece surfaces have been laid and are used for sealing the rubber film of interval between coal breaker inlet tube and the coal breakage pipe mouth of pipe and are used for fixing the clamp plate on the flange piece with the rubber film.

Furthermore, the opposite inner surfaces of the supporting plates are respectively and vertically fixedly provided with a guide plate, the guide plates do not extend to the inner surfaces of the supporting plates on the opposite sides, and the two guide plates are arranged in a staggered manner in the length direction of the supporting plates.

Furthermore, the supporting plate is flush with the end face of the inlet pipe or the coal dropping pipe of the coal breaker.

Furthermore, the inner end of the supporting plate is welded and fixed with an inlet pipe or a coal dropping pipe orifice of the coal breaker, and the outer end of the supporting plate is welded and fixed with the flange plate.

Further, the rubber film is fixed by bolts penetrating through the pressure plate and the flange plate.

Further, the rubber film between the two supporting plates is left with a margin to form an arc shape.

Further, the rubber sheet is a rubber sheet produced by thermal vulcanization.

The utility model discloses the theory of operation of coal breakage pipe flexible connection structure adopts the rubber film to connect through the relative mouth of pipe position of coal breaker inlet tube and coal breakage pipe, has realized the connection structure of full-seal, improves the connection leakproofness of coal breaker and coal breakage pipe, reduces the pollution of dust, has also reduced the sanitary frequency of manual cleaning, has reduced the cost of labor; meanwhile, the threat to the health of operators is reduced, and safety accidents caused by excessive dust are avoided.

Description of the drawings:

FIG. 1 is a schematic view of the front view cross section of the present invention;

FIG. 2 is an enlarged view of section A of FIG. 1;

fig. 3 is a cross-sectional view of the junction of the two ports of fig. 1.

The specific implementation mode is as follows:

the method of the present invention will be described in further detail with reference to examples. It should be noted that the protection scope of the present invention should include, but not be limited to, the technical content disclosed in the present embodiment.

The utility model discloses coal breakage pipe flexible connection structure includes coal breaker inlet tube 1 and establishes coal breakage pipe 2 directly over coal breaker inlet tube 1, coal breaker inlet tube 1 and the relative mouth of pipe position of coal breakage pipe 2 are fixed respectively and are equipped with and body axial lead vertically support slab 3, the outer end of support slab 3 is all fixed and is equipped with rather than vertically flange piece 4, and two flange piece 4 surfaces are laid and are used for sealing alternate rubber film 5 between coal breaker inlet tube and the coal breakage pipe mouth of pipe and are used for fixing the clamp plate 6 on the flange piece with the rubber film.

The rubber soft sheet is made of hollow rubber with flexible connection, has the characteristics of strong flexibility, good sealing property and strong shock absorption, is a connecting element with high elasticity, high air tightness, medium resistance and weather resistance, and can be also made by obliquely crossing and compounding high-strength and high-cold-heat-stability polyester cord fabric and then vulcanizing the polyester cord fabric by a high-pressure and high-temperature mold.

Furthermore, in order to realize the flow guiding effect and protect the rubber sheet from being washed by coal, the opposite inner surfaces of the supporting plate pieces 3 are respectively and vertically fixedly provided with a flow guide plate 7, the flow guide plate 7 does not extend to the inner surface of the supporting plate piece at the opposite side, and the two flow guide plates are arranged in a staggered manner in the length direction of the supporting plate piece, the two flow guide plates are respectively an upper flow guide plate connected to the supporting plate piece of the coal dropping pipe and a lower flow guide plate connected to the supporting plate piece of the coal breaker inlet pipe, when the coal flow falls from the coal dropping pipe, the coal flow can flow to the coal breaker along the flow guide plates, the position of the flow guide plate is arranged to be close to the; a telescopic space is reserved between the lower guide plate and the supporting plate of the coal dropping pipe, so that the flexibility and the vibration resistance of the device are ensured. Besides the function of diversion, the deflector can also protect the rubber sheet from being washed away by coal, so that the deflector is made of wear-resistant materials, and can be made of wear-resistant stainless steel or other weldable wear-resistant lining plate materials.

Furthermore, in order to be reasonable in design, the supporting plate is flush with the end face of the pipe orifice of the coal breaker inlet pipe or the coal dropping pipe; the inner end of the supporting plate is welded and fixed with an inlet pipe of the coal breaker or the pipe orifice of the coal dropping pipe, and the outer end of the supporting plate is welded and fixed with the flange plate; the rubber film is fixed by bolts penetrating through the pressure plate and the flange plate. The width of the upper supporting plate and the lower supporting plate is set to be 150mm, so that the working space of the bolt is guaranteed to be connected and removed, and the maintenance work is facilitated.

Furthermore, the rubber film between the two supporting plate pieces is provided with a margin to form an arc shape, which can increase the expansion space; the cross sections of the pulverizer inlet pipe 1 and the coal dropping pipe 2 can be circular or rectangular, and the like.

The utility model discloses coal breakage pipe flexible connection structure economic efficiency is excessive: according to design requirements, the single device is bound for 4000 yuan, the sanitary cleaning labor can be reduced by 100 people per year, and the labor cost can be saved by 3 ten thousand yuan per year; compared with the traditional connection, the maintenance cost is reduced by 1 ten thousand yuan; reduce the loss of a large amount of coal and improve the indoor dust concentration index at the same time.

The utility model discloses coal breakage pipe flexible connection structure is showing the advantage:

1. the installation of the rubber soft sheet improves the sealing performance of the coal breaker and the coal dropping pipe, reduces dust pollution, sanitary cleaning labor cost, coal powder loss and waste and improves the operation environment of a coal conveying line.

2. The inlet of the coal breaker and the blanking pipe are made of high-quality rubber materials, the coal breaker is designed and manufactured according to the characteristics of coal flow, powder accumulation at the connecting part can be prevented, the rubber device is prevented from being abraded by the coal flow, the guide plate is made of wear-resistant materials, the wear resistance can be improved, and the service life is guaranteed.

3. The flexibility can be guaranteed to the design of rubber film arch shape structure, and it is strong to improve the vibration resistance.

The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.

Claims (7)

1. The utility model provides a coal breakage pipe flexible coupling structure which characterized in that: including the coal breaker inlet tube with establish the coal breakage pipe directly over the coal breaker inlet tube, the mouth of pipe position that coal breaker inlet tube and coal breakage pipe are relative is fixed respectively and is equipped with the support slab with body axial lead vertically, the outer end of support slab all is fixed and is equipped with rather than the vertically flange piece, two flange piece surfaces have been laid and are used for sealing the rubber film of interval between coal breaker inlet tube and the coal breakage pipe mouth of pipe and are used for fixing the clamp plate on the flange piece with the rubber film.

2. The coal drop tube flexible connection structure of claim 1, wherein: the opposite inner surfaces of the supporting plates are respectively and vertically fixedly provided with a guide plate, the guide plates do not extend to the inner surfaces of the supporting plates on the opposite sides, and the two guide plates are arranged in a staggered manner in the length direction of the supporting plates.

3. The coal drop tube flexible connection structure of claim 1, wherein: the supporting plate is flush with the end face of the pipe orifice of the coal breaker inlet pipe or the coal dropping pipe.

4. The coal drop tube flexible connection structure of claim 1, wherein: the inner end of the supporting plate is welded and fixed with an inlet pipe or a coal dropping pipe orifice of the coal breaker, and the outer end of the supporting plate is welded and fixed with the flange piece.

5. The coal drop tube flexible connection structure of claim 1, wherein: the rubber film is fixed by bolts penetrating through the pressure plate and the flange plate.

6. The coal drop tube flexible connection structure of claim 1, wherein: the rubber film between the two supporting plates has a margin to form an arch shape.

7. The coal drop tube flexible connection structure of claim 1, wherein: the rubber sheet is made by thermal vulcanization.

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