CN213314257U - Sealing device for denitration process - Google Patents

Abstract

The utility model relates to the technical field of denitration technology, in particular to a sealing device for denitration technology, which comprises a supporting seat and a denitration cylinder, wherein a sealing shell is fixed on the supporting seat, the denitration cylinder penetrates through the sealing shell, a first sealing ring is arranged between the sealing shell and the denitration cylinder, a rotating groove is arranged in the sealing shell, a movable sealing block which is sleeved on the denitration cylinder is rotatably connected in the rotating groove, a plurality of second sealing rings and third sealing rings are respectively arranged between the movable sealing block and the inner walls of the denitration cylinder and the rotating groove, a gland is fixed at one end of the sealing shell far away from the supporting seat, the denitration cylinder penetrates through the gland, a first rotating piece and a second rotating piece are respectively rotatably connected between two ends of the movable sealing cover and between the sealing shell and the gland, a fourth multiple sealing ring is arranged between the gland and the denitration cylinder, and the utility model discloses a sealing ring, can effectively prevent the cement powder from leaking in the denitration process, and has wide application prospect in the technical field of denitration process.

Description

Sealing device for denitration process

Technical Field

The utility model belongs to the technical field of the denitration technology technique and specifically relates to a sealing device for denitration technology.

Background

Along with the continuous reinforcing of people's environmental protection consciousness, people attach more and more importance to atmospheric environment, often can produce oxynitride in the cement production, can the polluted environment in directly discharging to the atmosphere with oxynitride, current cement need carry out the denitration operation in putting into production. In the prior art, a denitration process generally needs to use a denitration cylinder to rotate to carry out sufficient chemical reaction on internal cement raw powder, so as to carry out denitration treatment. However, denitration section of thick bamboo is poor because sealed effect when rotating in-process denitration, and inside cement raw meal can break away from with the sealing member department along the lateral wall of a denitration section of thick bamboo usually, causes a large amount of powder phenomena that leak, causes the wasting of resources, also pollutes operational environment simultaneously.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems that in the denitration process, due to the poor sealing effect, the cement raw powder inside the denitration cylinder is usually separated from a sealing piece along the outer side wall of the denitration cylinder, so that a large amount of powder leakage is caused, the resource waste is caused, and the working environment is polluted, the sealing device for the denitration process is invented.

The technical scheme of the utility model be, including a supporting seat and a denitration section of thick bamboo, wherein, be fixed with sealed shell on the supporting seat, a denitration section of thick bamboo runs through sealed shell, be provided with first sealing washer between sealed shell and the denitration section of thick bamboo, it rotates the groove to have seted up in the sealed shell, it establishes the sealed piece that moves on a denitration section of thick bamboo to rotate the inslot internal rotation and be connected with the cover, it is provided with a plurality of second sealing washers and third sealing washer respectively to move between sealed piece and the denitration section of thick bamboo and the inner wall that rotates the groove, the one end that the supporting seat was kept away from to sealed shell is fixed with the gland, a denitration section of thick bamboo runs through the gland, it is connected with first rotation piece and second rotation piece to rotate respectively between both ends of moving sealed.

Preferably, the both ends border of sealed piece has extended first ring flange and second ring flange respectively, the one end of sealed piece is passed through first ring flange through first bolt and is fixed on the supporting seat, be provided with first sealed pad between sealed piece and the first ring flange, the surface extension of gland has the third ring flange, second ring flange and third ring flange pass through second bolt fixed connection, be equipped with the second sealed pad between second ring flange and the third ring flange.

Preferably, a plurality of first annular grooves are formed in the inner side wall, close to the supporting seat, of the sealing shell, the first sealing ring is clamped in the first annular grooves, and the first sealing ring is tightly abutted to the outer wall of the denitration cylinder.

Preferably, the sealing block is two arc plate structures, the fixed orifices has been seted up at the border of sealing block, two the arc passes through third bolt fixed connection and constitutes sealing block, a plurality of second annular have been seted up on the inside wall of dynamic seal piece, the second sealing washer is connected in the second annular, the second sealing washer closely contradicts with the outer wall of a denitration section of thick bamboo.

Preferably, a plurality of third annular grooves are formed in the outer surface of the sealing block, a fourth annular groove opposite to the third annular groove is formed in the inner wall of the rotating groove, the third sealing ring is clamped in the third annular groove and the fourth annular groove, and the third sealing ring is tightly abutted to the inner bottoms of the third annular groove and the fourth annular groove.

Preferably, the first rotating member includes a first rotating ball, an annular first sliding groove and a second sliding groove, the first sliding groove is formed in a side wall of the rotating groove close to the supporting seat, the second sliding groove is formed in an end face of the moving sealing block, the first rotating ball is provided with a plurality of sliding grooves connected to the first sliding groove and the second sliding groove, an annular first oil groove and an annular second oil groove are respectively formed in a sealing shell at the position of the first rotating ball and the inner end face of the moving sealing block, the first oil groove and the second oil groove are communicated with a gap between the moving sealing block and the rotating groove, a first oil filling hole communicated with the first oil groove is formed in the sealing shell, a first sealing screw hole communicated with the first oil filling hole is formed in the sealing shell, and a first sealing screw is in threaded connection with a first sealing screw.

Preferably, the second rotating part comprises a second rotating ball, an annular third sliding groove and a fourth sliding groove, the fourth sliding groove is formed in the side wall, far away from the supporting seat, of the rotating groove, the third sliding groove is formed in the end face of the other end of the movable sealing block, the second rotating ball is provided with a plurality of sliding grooves connected to the third sliding groove and the fourth sliding groove, the pressing cover of the second rotating ball and the inner end face of the movable sealing block are respectively provided with an annular fourth oil groove and an annular third oil groove, the third oil groove and the fourth oil groove are communicated with a gap between the movable sealing block and the rotating groove, the pressing cover is provided with a second oil filling hole communicated with the fourth oil groove, the pressing cover is provided with a second sealing screw hole communicated with the second oil filling hole, and the second sealing screw hole is connected with a second sealing screw through a thread.

Preferably, a plurality of fifth ring grooves are formed in the inner side wall of the gland, the fourth sealing ring is clamped in the fifth ring grooves, and the fourth sealing ring is tightly abutted to the outer wall of the denitration cylinder.

Adopt the technical scheme of the utility model can reach following beneficial effect: (1) by the matched use of the first sealing ring, the second sealing ring, the third sealing ring and the fourth sealing ring, gaps between the support frame and the sealing device and between the support frame and the denitration cylinder can be effectively plugged, so that the raw cement powder is prevented from leaking from the gaps between the support frame and the sealing device and between the support frame and the denitration cylinder, resource waste is avoided, and meanwhile, environmental pollution is caused; (2) the first rotating piece and the second rotating piece are matched for use, so that abrasion to the sealing shell and the gland when the denitration cylinder drives the movable sealing block to rotate can be effectively reduced, the movable sealing block is limited, and the movable sealing block is prevented from being separated from the sealing shell; the technical scheme of the utility model has extensive application prospect in denitration technology technical field.

Drawings

Fig. 1 is the utility model discloses denitration sealing device for technology's cross-sectional view.

Fig. 2 is an enlarged view of the area a in fig. 1.

Fig. 3 is an enlarged view of the B region in fig. 1.

Wherein, 1, a support seat, 2, a denitration cylinder, 3, a seal shell, 4, a gland, 5, a movable seal block, 6, a first flange, 7, a first bolt, 8, a first seal gasket, 9, a first ring groove, 10, a first seal ring, 11, a rotary groove, 12, a first slide groove, 13, a second slide groove, 14, a first rotary ball, 15, a first oil groove, 16, a second oil groove, 17, a first oil filling hole, 18, a first seal screw hole, 19, a first seal screw, 20, a second ring groove, 21, a second seal ring, 22, a third ring groove, 23, a third seal ring, 24, a fourth ring groove, 25, a fixed screw hole, 26, a third slide groove, 27, a fourth slide groove, 28, a second rotary ball, 29, a third oil groove, 30, a fourth oil filling hole, 31, a second oil filling hole, 32, a second seal screw hole, 33, a second seal screw, 34, a fifth ring groove, 35, a fourth seal ring groove, 36. a second flange plate 37, a third flange plate 38, a second bolt 39 and a second sealing gasket.

Detailed Description

The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention, and in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, and are only for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as limiting the present invention.

Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance throughout the present disclosure, it being understood that unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and can be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-3 sealing device for denitration technology, including a supporting seat 1 and a denitration section of thick bamboo 2, supporting seat 1 is used for fixing and supporting a denitration section of thick bamboo 2 and arranges the junction of expecting the pipe for purchase in the denitration section of thick bamboo 2 and rotate for supporting seat 1, and then be convenient for carry out the denitration operation to the inside cement raw meal of a denitration section of thick bamboo 2. Fixed detachable is connected with sealed shell 3 on the supporting seat 1, and a denitration section of thick bamboo 2 runs through sealed shell 3, is convenient for carry out the shutoff through sealed shell 3 with the gap between a supporting seat 1 and a denitration section of thick bamboo 2, avoids a denitration section of thick bamboo 2 to spill from the gap between a supporting seat 1 and a denitration section of thick bamboo 2 when discharge cement raw meal, causes the waste of resource, and causes the pollution to the environment. Be provided with a plurality of first sealing washer 10 between sealed shell 3 and a denitration section of thick bamboo 2, be convenient for carry out the shutoff through a plurality of first sealing washers 10 with the gap between sealed shell 3 and a denitration section of thick bamboo 2, avoid the cement raw meal to spill along the gap between a denitration section of thick bamboo 2 and the sealed shell 3. Rotation groove 11 has been seted up in sealed shell 3, it establishes the movable seal piece 5 on a denitration section of thick bamboo 2 to rotate 11 internal rotations in groove and connect the cover, be provided with a plurality of second sealing washer 21 and third sealing washer 23 between the inner wall of movable seal piece 5 and a denitration section of thick bamboo 2 and rotation groove 11 respectively, be convenient for carry out the shutoff through second sealing washer 21 and third sealing washer 23 to the gap between movable seal piece 5 and a denitration section of thick bamboo 2 and the rotation groove 11, and then avoid effectively leaking through the gap between the driven seal piece 5 of the cement raw meal of first sealing washer 10 and a denitration section of thick bamboo 2 and rotation groove 11. Sealed shell 3 keeps away from the fixed gland 4 that can dismantle of one end of supporting seat 1, a denitration section of thick bamboo 2 runs through gland 4, and 4 parts of gland are pegged graft in sealed shell 3, be convenient for carry out the shutoff through gland 4 to the open end of sealed shell 3, avoid spilling from the opening part of sealed shell 3 through the cement raw meal of second sealing washer 21 and third sealing washer 23, prescribe a limit to simultaneously move sealed piece 5, avoid moving sealed piece 5 and deviate from in the rotation groove 11 in sealed shell 3. Move between the both ends of sealed lid and sealed shell 3 and the gland 4 and rotate respectively and be connected with first rotation piece and second and rotate the piece, be convenient for rotate through first rotation piece and second and reduce the wearing and tearing of moving 5 both ends of sealed piece to sealed shell 3 and gland 4, carry out the shutoff to the gap of moving between sealed piece 5 and rotation groove 11 and the gland 4 to a certain extent simultaneously. Be provided with fourth sealing washer 35 between gland 4 and a denitration section of thick bamboo 2, be convenient for carry out the shutoff through fourth sealing washer 35 with the gap between gland 4 and a denitration section of thick bamboo 2, avoid leaking from the gap between gland 4 and a denitration section of thick bamboo 2 through the cement raw meal of second sealing washer 21 and third sealing washer 23.

As shown in fig. 1-3, in the sealing device for denitration process, the first flange plate 6 and the second flange plate 36 are respectively extended from the edges of the two ends of the sealing block, and one end of the sealing block is fixed on the supporting seat 1 by penetrating the first flange plate 6 through the first bolt 7, so that the sealing shell 3 is fixed on the supporting seat 1 and is convenient to be rapidly disassembled and assembled. Be provided with first sealed pad 8 between sealed piece and the first ring flange 6, be convenient for carry out the shutoff through the gap of first sealed pad 8 between to supporting seat 1 and the first ring flange 6, avoid cement raw meal to spill from the gap between supporting seat 1 and the first ring flange 6. The outer surface of gland 4 extends there is third flange dish 37, and second flange dish 36 and third flange dish 37 pass through second bolt 38 fixed connection, are convenient for fix gland 4 in the one end that sealed shell 3 kept away from supporting seat 1, and are convenient for quick assembly disassembly. And a second sealing gasket 39 is arranged between the second flange plate 36 and the third flange plate 37, so that a gap between the second flange plate 36 and the third flange plate 37 is conveniently sealed by the second sealing gasket 39, and the cement raw powder is prevented from leaking from the gap between the second flange plate 36 and the third flange plate 37.

As shown in fig. 1-3 sealing device for denitration technology, a plurality of first annular grooves 9 have been seted up on the inside wall that sealed shell 3 is close to supporting seat 1, first sealing washer 10 joint is in first annular groove 9, and the part of first sealing washer 10 protrusion first annular groove 9 closely contradicts with the outer wall of a denitration section of thick bamboo 2, be convenient for inject first sealing washer 10 through first annular groove 9, avoid when a denitration section of thick bamboo 2 rotates because of the too big acceleration rate of wear of the frictional force between first sealing washer 10 and a denitration section of thick bamboo 2, avoid first sealing washer 10 transition deformation to increase and the frictional force between a denitration section of thick bamboo 2 simultaneously, and then influence a denitration section of thick bamboo 2 and rotate. Seted up a plurality of fifth ring grooves 34 on gland 4's the inside wall, fourth sealing washer 35 joint is in fifth ring groove 34, and the part of fourth sealing washer 35 protrusion fifth ring groove 34 closely contradicts with denitration section of thick bamboo 2's outer wall, be convenient for inject fourth sealing washer 35 through fifth ring groove 34, avoid when denitration section of thick bamboo 2 rotates because of the too big wearing and tearing speed that accelerates of frictional force between fourth sealing washer 35 and the denitration section of thick bamboo 2, avoid fourth sealing washer 35 transition deformation to increase and the frictional force between the denitration section of thick bamboo 2 simultaneously, and then influence denitration section of thick bamboo 2 and rotate.

As shown in fig. 1-3, sealing block is two arc structures, and a plurality of fixed screw holes 25 have been seted up at sealing block's border, and two arcs constitute movable sealing block 5 in fixed screw hole 25 through third bolt threaded connection, are convenient for realize the quick assembly disassembly of movable sealing block 5 through fixed screw hole 25 and third bolt, utilize the movable sealing block 5 that two arcs constitute simultaneously, are convenient for fix movable sealing block 5 on denitration section of thick bamboo 2. A plurality of second ring grooves 20 have been seted up on the inside wall of movable seal piece 5, and second sealing washer 21 is connected in second ring groove 20, and the part of second sealing washer 21 protrusion second ring groove 20 closely contradicts with the outer wall of a denitration section of thick bamboo 2, is convenient for inject second sealing washer 21 through second ring groove 20, utilizes second sealing washer 21 to carry out the shutoff with the gap between movable seal piece 5 and the denitration section of thick bamboo 2 effectively simultaneously. A plurality of third annular grooves 22 have been seted up to the surface of sealing block, set up the fourth annular groove 24 that is relative to with third annular groove 22 on the inner wall of rotation groove 11, third sealing washer 23 joint is in third annular groove 22 and fourth annular groove 24, and third sealing washer 23 closely contradicts with the interior bottom of third annular groove 22 and fourth annular groove 24, be convenient for inject third sealing washer 23 through third annular groove 22 and fourth annular groove 24, avoid third sealing washer 23 to break away from third annular groove 22 and fourth annular groove 24 when denitration section of thick bamboo 2 rotates, and then because of the too big wearing and tearing speed that accelerates of frictional force between the inner wall of third sealing washer 23 and rotation groove 11, avoid the frictional force between third sealing washer 23 transitional deformation increase and denitration section of thick bamboo 2 simultaneously, and then influence denitration section of thick bamboo 2 and rotate.

As shown in fig. 1-3, the sealing device for denitration process, the first rotating member includes a first rotating ball 14, an annular first sliding groove 12 and an annular second sliding groove 13, the first sliding groove 12 is disposed on the side wall of the rotating groove 11 close to the support seat 1, the second sliding groove 13 is disposed on the end surface of one end of the rotating sealing block 5, the first rotating ball 14 has a plurality of sliding connections in the first sliding groove 12 and the second sliding groove 13, it is convenient to rotate in the first sliding groove 12 and the second sliding groove 13 through the first rotating ball 14, it is avoided that the rotating sealing block 5 directly contacts with the inner side wall of the rotating groove 11 to generate large friction force, thereby affecting the rotation of the denitration cylinder 2, and it is also avoided that the inner side walls of the rotating groove 11 and the rotating sealing block 5 are damaged by mutual friction. Annular first oil groove 15 and second oil groove 16 have been seted up respectively to the seal shell 3 of first ball 14 department of rotating and the interior terminal surface of moving seal block 5, and first oil groove 15 and second oil groove 16 are linked together with the gap between moving seal block 5 and the rotating groove 11, be convenient for through first oil groove 15 and second oil groove 16 storage lubricating oil, and then make lubricating oil can get into first spout 12 and second spout 13 through the gap between moving seal block 5 and the rotating groove 11, lubricate first ball 14 of rotating, reduce the frictional force between first ball 14 and first spout 12 and the second spout 13. The sealing shell 3 is provided with a first oil filling hole 17 communicated with the first oil groove 15, so that lubricating oil can be conveniently added into the first oil groove 15 and the second oil groove 16 through the first oil filling hole 17. A first sealing screw hole 18 communicated with a first oil filling hole 17 is formed in the sealing shell 3, a first sealing screw 19 is connected to the first sealing screw hole 18 in a threaded mode, the first oil filling hole 17 is conveniently sealed through the first sealing screw 19 connected into the first sealing screw hole 18 in a threaded mode, and lubricating oil in the first oil groove 15 and lubricating oil in the second oil groove 16 are prevented from leaking out through the first oil filling hole 17. The second rotates the piece and includes second turning ball 28, annular third spout 26 and fourth spout 27, fourth spout 27 is seted up on the lateral wall that rotates groove 11 and keep away from supporting seat 1, third spout 26 is seted up on the other end terminal surface of movable sealing block 5, second turning ball 28 has a plurality ofly and sliding connection in third spout 26 and fourth spout 27, be convenient for through second turning ball 28 at third spout 26 and the rotation of fourth spout 27, avoid movable sealing block 5 and gland 4 direct contact to produce great frictional force, and then influence denitration section of thick bamboo 2 and rotate, also avoid simultaneously moving mutual friction damage between sealing block 5 and the gland 4. Annular fourth oil groove 30 and third oil groove 29 have been seted up respectively to gland 4 and the interior terminal surface of dynamic seal piece 5 of second ball 28 department, and the gap between third oil groove 29 and fourth oil groove 30 and dynamic seal piece 5 and the rotating groove 11 is linked together, be convenient for store lubricating oil through third oil groove 29 and fourth oil groove 30, and then make lubricating oil can get into third spout 26 and fourth spout 27 through the gap between dynamic seal piece 5 and the gland 4, lubricate second ball 28, reduce the frictional force between second ball 28 and third spout 26 and the fourth spout 27. And a second oil filling hole 31 communicated with the fourth oil groove 30 is formed in the gland 4, so that lubricating oil can be conveniently added into the third oil groove 29 and the fourth oil groove 30 through the second oil filling hole 31. The gland 4 is provided with a second sealing screw hole 32 communicated with the second oil filling hole 31, the second sealing screw hole 32 is in threaded connection with a second sealing screw 33, the second oil filling hole 31 is conveniently sealed through the second sealing screw 33 in the second sealing screw hole 32 in a threaded connection mode, and lubricating oil in the third oil groove 29 and the fourth oil groove 30 is prevented from leaking through the second oil filling hole 31.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (8)

1. Sealing device for denitration technology, including supporting seat (1) and denitration section of thick bamboo (2), its characterized in that, be fixed with sealed shell (3) on supporting seat (1), denitration section of thick bamboo (2) run through sealed shell (3), be provided with first sealing washer (10) between sealed shell (3) and denitration section of thick bamboo (2), it rotates groove (11) to have seted up in sealed shell (3), it establishes movable sealing piece (5) on denitration section of thick bamboo (2) to rotate groove (11) internal rotation connection, it is provided with a plurality of second sealing washers (21) and third sealing washer (23) respectively to move between the inner wall of sealed piece (5) and denitration section of thick bamboo (2) and rotation groove (11), the one end that supporting seat (1) was kept away from in sealed shell (3) is fixed with gland (4), denitration section of thick bamboo (2) run through gland (4), it rotates first rotating piece and second to be connected with respectively to move between both ends of sealed lid and sealed shell (3) and gland (4) and rotate and be connected The piece, be provided with fourth sealing washer (35) between gland (4) and denitration section of thick bamboo (2).

2. The sealing device for the denitration process according to claim 1, wherein a first flange plate (6) and a second flange plate (36) extend from edges of two ends of the sealing block respectively, one end of the sealing block penetrates through the first flange plate (6) through a first bolt (7) and is fixed on the support base (1), a first sealing gasket (8) is arranged between the sealing block and the first flange plate (6), a third flange plate (37) extends from the outer surface of the gland (4), the second flange plate (36) and the third flange plate (37) are fixedly connected through a second bolt (38), and a second sealing gasket (39) is arranged between the second flange plate (36) and the third flange plate (37).

3. The sealing device for the denitration process according to claim 1, wherein a plurality of first ring grooves (9) are formed on the inner side wall of the sealing shell (3) close to the supporting seat (1), the first sealing ring (10) is clamped in the first ring grooves (9), and the first sealing ring (10) is tightly abutted against the outer wall of the denitration cylinder (2).

4. The sealing device for the denitration process of claim 1, wherein the sealing block is of two arc-shaped plate structures, the edge of the sealing block is provided with a plurality of fixed screw holes (25), the two arc-shaped plates are connected in the fixed screw holes (25) through third bolts in a threaded manner to form a movable sealing block (5), the inner side wall of the movable sealing block (5) is provided with a plurality of second ring grooves (20), the second sealing ring (21) is connected in the second ring grooves (20), and the second sealing ring (21) is tightly abutted against the outer wall of the denitration cylinder (2).

5. The sealing device for the denitration process according to claim 1, wherein the outer surface of the sealing block is provided with a plurality of third ring grooves (22), the inner wall of the rotating groove (11) is provided with a fourth ring groove (24) opposite to the third ring grooves (22), the third sealing ring (23) is clamped in the third ring grooves (22) and the fourth ring groove (24), and the third sealing ring (23) is tightly abutted against the inner bottoms of the third ring grooves (22) and the fourth ring groove (24).

6. The sealing device for the denitration process according to claim 1, wherein the first rotating member comprises a first rotating ball (14), a first annular sliding groove (12) and a second sliding groove (13), the first sliding groove (12) is formed in the side wall of the rotating groove (11) close to the support base (1), the second sliding groove (13) is formed in one end face of the movable seal block (5), the first rotating ball (14) has a plurality of sliding grooves connected to the first sliding groove (12) and the second sliding groove (13), the seal housing (3) and the movable seal block (5) at the first rotating ball (14) are respectively provided with a first annular oil groove (15) and a second annular oil groove (16), the first oil groove (15) and the second oil groove (16) are communicated with the gap between the movable seal block (5) and the rotating groove (11), the seal housing (3) is provided with a first oil filling hole (17) communicated with the first oil groove (15), the sealing shell (3) is provided with a first sealing screw hole (18) communicated with a first oil filling hole (17), and a first sealing screw (19) is connected with the first sealing screw hole (18) in an internal thread mode.

7. The sealing device for the denitration process according to claim 1, wherein the second rotating member comprises a second rotating ball (28), an annular third sliding groove (26) and a fourth sliding groove (27), the fourth sliding groove (27) is formed in the side wall of the rotating groove (11) far away from the supporting seat (1), the third sliding groove (26) is formed in the end surface of the other end of the movable sealing block (5), the second rotating ball (28) has a plurality of sliding grooves connected to the third sliding groove (26) and the fourth sliding groove (27), the gland (4) at the second rotating ball (28) and the inner end surface of the movable sealing block (5) are respectively provided with an annular fourth oil groove (30) and a third oil groove (29), the third oil groove (29) and the fourth oil groove (30) are communicated with the gap between the movable sealing block (5) and the rotating groove (11), the gland (4) is provided with a second oil filling hole (31) communicated with the fourth oil groove (30), and a second sealing screw hole (32) communicated with a second oil filling hole (31) is formed in the gland (4), and a second sealing screw (33) is connected to the second sealing screw hole (32) in an internal thread manner.

8. The sealing device for the denitration process according to claim 1, wherein a plurality of fifth ring grooves (34) are formed on the inner side wall of the gland (4), the fourth sealing ring (35) is clamped in the fifth ring grooves (34), and the fourth sealing ring (35) is tightly abutted against the outer wall of the denitration cylinder (2).

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