CN216112172U - Riser shaft head seal structure - Google Patents

Abstract

The utility model discloses a riser axial head sealing structure, which comprises: the ascending pipe, the ascending pipe top has the opening, the opening part is provided with turns over the board, it is articulated with the ascending pipe through the trip shaft to turn over the board, the trip shaft runs through the ascending pipe, turn over the epaxial equipment of trip shaft of board both sides and be equipped with sealed curb plate, sealed curb plate side top has the notes oil pipe of vertical setting, notes oil pipe runs through sealed curb plate, makes the interior fluid of pouring into of notes oil pipe can reach the trip shaft surface, trip shaft one end is connected with power unit, thereby power unit promotes the trip shaft rotation and makes to turn over the board and realize opening and shutting, thereby solves above-mentioned prior art ascending pipe spindle nose department and emit yellow smoke easily, and then causes the environmental pollution accident and overhauls the big and difficult technical problem of operation of the degree of difficulty.

Description

Riser shaft head seal structure

Technical Field

The utility model belongs to the field of mechanical sealing, and particularly relates to a riser shaft head sealing structure.

Background

In the metallurgical coking industry, the ascending pipe is used as key equipment of a tamping coke oven gas guiding system, and the ascending pipe has the main function of guiding out raw coke gas generated by a coke oven carbonization chamber, cooling and washing the raw coke gas by a high-pressure and low-pressure ammonia water system at a bridge pipe, and then entering a raw coke gas treatment system. In order to prevent a large amount of smoke dust from overflowing in the coke pushing process, the ascending pipe turning plate needs to be opened before discharging, and meanwhile, the high-pressure ammonia water system is started to guide a large amount of smoke dust into the coal gas treatment system. The main function of the turning plate is to communicate and seal the passage between the carbonization chamber and the atmosphere, to close the turning plate in the coking process and to open the turning plate before discharging. In the normal production process, due to the frequent movement of the turning plate, the gap at the shaft head of the turning plate is increased, the internal sealing material falls off and the like, the smoke in the ascending pipe area of the coke oven is frequent, and the surrounding environment is seriously damaged. Nor the health of nearby production personnel. At present, aiming at smoke emission treatment of a shaft head of a coke oven ascending pipe, the shaft head is usually sealed by a shaft head gland, a graphite packing and grease. However, the shaft head rotates back and forth to cause packing abrasion, so that the shaft head of the ascending pipe is not sealed tightly, and an operator needs to reset the graphite packing and the grease to the shaft head pressing cover. However, the working space of the ascending pipe is narrow, the temperature is as high as 70-80 ℃, and the labor intensity of operators is high, so that the treatment mode has short service cycle.

In addition, the structure is difficult to satisfy the sealing effect of the shaft head when the pressure fluctuation of the gas collecting pipe is severe, yellow smoke is easily emitted at the shaft head of the ascending pipe, environmental pollution accidents are further caused, and the workload and the labor intensity of personnel for processing the smoke emitted by the shaft head are increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a riser shaft head sealing structure, which solves the technical problems that yellow smoke is easy to emit from a riser shaft head in the prior art, environmental pollution accidents are caused, the overhauling difficulty is high, and the operation is difficult.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

a riser axial head seal structure comprising: the improved oil injection device comprises an ascending pipe, wherein an opening is formed in the top of the ascending pipe, a turning plate is arranged at the opening and hinged to the ascending pipe through a turning shaft, the turning shaft penetrates through the ascending pipe, sealing side plates are assembled on the turning shaft on the two sides of the turning plate, an oil injection pipe vertically arranged is arranged at the top of the side face of each sealing side plate and penetrates through the sealing side plates, oil injected into the oil injection pipe can reach the surface of the turning shaft, one end of the turning shaft is connected with a power mechanism, and the power mechanism pushes the turning shaft to rotate so that the turning plate can be opened and closed.

According to the riser shaft head sealing structure, the middle part of the sealing side plate is provided with the turnover shaft through hole for the turnover shaft to pass through, the turnover shaft through hole is provided with the bearing bush, and the bearing bush is sleeved on the outer side of the turnover shaft.

According to the riser shaft head sealing structure, the two ends of the sealing side plates in the plane direction are provided with the mounting notches, and the mounting notches are connected with a riser through bolts.

According to the riser shaft head sealing structure, the oil injection pipe is connected with the sealing side plate through threads.

The sealing side plate is of a split structure and comprises a side plate lower part and a side plate upper part, and the side plate lower part and the side plate upper part are connected through a detachable connecting structure.

According to the riser shaft head sealing structure, the bearing bush is connected with the sealing side plate in a welding mode.

According to the riser shaft head sealing structure, the cover plate is arranged at the position, located at the turnover shaft through hole, of one side of the sealing side plate, and the cover plate seals one side of the turnover shaft through hole.

The utility model has the following beneficial effects: the shaft head of the ascending pipe is additionally provided with a sealing side plate and an oil injection pipe, so that lubricating oil such as molybdenum disulfide lithium-based lubricating grease can be injected timely and remotely, and lubrication and sealing are performed; the sealing structure is tightly attached to the shaft head through the bearing bush, the shaft head is sealed in the sealed cavity, and when the molybdenum disulfide lithium-based lubricating grease flows downwards into the cavity, a complete oil seal structure is formed on the periphery of the shaft head of the turnover shaft, so that the sealing requirement of the shaft head when the pressure fluctuation of the gas collecting pipe is severe can be met, the smoke blocking effect is obvious, and the smoke blocking operation can be realized only by periodically oiling subsequently; meanwhile, the structure can be simultaneously applied to the end head, namely the structure with the cover plate at one end, and also can be applied to the condition that the turnover shaft needs to penetrate, namely the structure is hollow, and the structure can be of a split structure, so that the maintenance is convenient, and the maintenance cost is reduced. The device has fewer parts, is convenient for operation and maintenance of maintainers, and greatly reduces the maintenance cost compared with the prior art.

Drawings

The utility model will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of a split structure of a sealing side plate according to an embodiment of the present invention;

fig. 3 is a schematic view of a sealing side plate of an embodiment of the utility model.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

1-3, a riser axial end seal arrangement, comprising: ascending pipe 1, ascending pipe 1 top has the opening, the opening part is provided with turns over board 2, turn over board 2 and pass through trip shaft 3 and ascending pipe 1 articulated, trip shaft 3 runs through ascending pipe 1, be equipped with sealed curb plate 5 on the trip shaft 3 of turning over board 2 both sides, sealed curb plate 5 side top has the notes oil pipe 6 of vertical setting, notes oil pipe 6 runs through sealed curb plate 5, makes the fluid of pouring into in the notes oil pipe 6 can reach trip shaft 3 surfaces, 3 one end of trip shaft are connected with power unit 4, thereby power unit 4 promotes the rotation of trip shaft 3 and makes to turn over board 2 and realize opening and shutting.

In a preferred embodiment of the present invention, the middle of the sealing side plate 5 has a turning shaft through hole 56 for the turning shaft 3 to pass through, a bearing bush 55 is disposed at the turning shaft through hole 56, and the bearing bush 55 is sleeved outside the turning shaft 3.

In the preferred embodiment of the present invention, the two ends of the sealing side plate 5 in the plane direction have installation notches 54, and the installation notches 54 are connected with the ascending pipe 1 through bolts.

In the preferred embodiment of the present invention, the filler pipe 6 is screwed to the seal side plate 5.

In a preferred embodiment of the present invention, the sealing side plate 5 is a split structure, the sealing side plate 5 includes a side plate lower part 51 and a side plate upper part 52, and the side plate lower part 51 and the side plate upper part 52 are connected by a detachable connecting structure 53.

In the preferred embodiment of the present invention, the bearing bush 55 and the sealing side plate 5 are welded.

In the preferred embodiment of the present invention, the side of the side seal plate 5 is provided with a cover plate 57 at the turning shaft passing hole 56, and the cover plate 57 closes off the turning shaft passing hole 56 side.

For the semi-closed structure of the sealing side plate 5 as shown in figure 3 or the detachable non-closed structure as shown in figure 2, the oil filling pipe 6 is connected with the sealing side plate 5 through a threaded hole above the sealing side plate, and the grease is molybdenum disulfide lithium grease. For a semi-closed structure, the sealing side plate 5 and the bearing bush 55 are welded to each other, and the bearing bush 5 and the cover plate 57 are welded to each other, so as to form a semi-closed structure with a cavity, when the semi-closed structure is applied, the semi-closed structure is sleeved at the shaft head of the turnover shaft 3, and two screws of the shaft head are fastened with two installation gaps 54 reserved on the edge of the sealing side plate 5 through nuts. For the dismantled and assembled non-enclosed structure, sealed curb plate 5 falls into two parts about, the axle bush 55 also falls into two parts, upper portion curb plate and upper portion axle bush are welded each other, upper portion axle bush 55 passes through the screw hole with oiling pipe 6 and is connected, curb plate lower part 51 and lower part axle bush are welded each other, when using, install the curb plate lower part in the trip shaft 3 below earlier, fasten through axle head self bolt nut, again with curb plate upper portion 52 and curb plate lower part 21 branch carry out the opposite dress, through dismantlement formula connection structure 53, if the welded bolt hole, use bolted connection.

The advantage of this structure is that this structure is narrow and be in the high temperature state to tedge spindle nose maintenance position, can't accomplish closely the operation, and uses the device to pass through the instrument, and two people mutually support convenient operation and high efficiency. Secondly, the bearing bush 55 of the sealing side plate 5 of the sealing structure is tightly attached to the shaft head of the turnover shaft 3, the shaft head is sealed in the sealed cavity, and when the molybdenum disulfide lithium-based lubricating grease flows downwards into the cavity, a complete oil seal structure is formed at the periphery of the shaft head, the sealing requirement of the shaft head when the pressure fluctuation of the gas collecting pipe is severe can be met, so that the smoke blocking effect is obvious, and the smoke blocking operation is realized only by periodically refueling subsequently. And thirdly, the maintenance is convenient, and the maintenance cost is reduced. The device has fewer parts, is convenient for operation and maintenance of maintainers, and greatly reduces the maintenance cost compared with the prior art.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the utility model as defined in the appended claims.

Claims (7)

1. A riser axial head seal structure, comprising: ascending pipe (1), ascending pipe (1) top has the opening, the opening part is provided with turns over board (2), turn over board (2) and hinge with ascending pipe (1) through trip shaft (3), trip shaft (3) run through ascending pipe (1), be equipped with sealed curb plate (5) on trip shaft (3) of turning over board (2) both sides, sealed curb plate (5) side top has oiling pipe (6) of vertical setting, oiling pipe (6) run through sealed curb plate (5), make the fluid of pouring into in oiling pipe (6) can reach trip shaft (3) surface, trip shaft (3) one end is connected with power unit (4), thereby power unit (4) promote the rotation of trip shaft (3) and make turning over board (2) realize opening and shutting.

2. The riser axial end sealing structure according to claim 1, wherein the middle part of the sealing side plate (5) is provided with a turnover shaft through hole (56) for the turnover shaft (3) to pass through, a bearing bush (55) is arranged at the turnover shaft through hole (56), and the bearing bush (55) is sleeved outside the turnover shaft (3).

3. The riser axial end sealing structure according to claim 1, wherein the sealing side plate (5) has mounting notches (54) at both ends in the plane direction, and the mounting notches (54) are connected with the riser (1) through bolts.

4. The riser axial end sealing structure according to claim 1, wherein the filler pipe (6) is screwed with the sealing side plate (5).

5. The riser axial end sealing structure according to claim 2, wherein the sealing side plate (5) is a split structure, the sealing side plate (5) comprises a side plate lower part (51) and a side plate upper part (52), and the side plate lower part (51) and the side plate upper part (52) are connected through a detachable connecting structure (53).

6. The riser axial end seal structure according to claim 2, wherein the bearing bush (55) and the seal side plate (5) are welded.

7. The riser axial end sealing structure according to claim 2, wherein the side of the sealing side plate (5) has a cover plate (57) at the trip shaft passing hole (56), and the cover plate (57) closes off the trip shaft passing hole (56) side.

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