Sealing device for kiln head and kiln tail of cement kiln

Abstract

The utility model provides a cement kiln head and tail sealing device, which belongs to the technical field of cement production equipment and comprises two first clamping plates and a plurality of second clamping plates, grooves are oppositely formed in the first clamping plates, the two grooves can form a circular ring structure, and the second clamping plates are arranged in the grooves in a sliding manner. A plurality of groups of elastic extrusion assemblies capable of generating elastic deformation are arranged between the second clamping plates and the grooves, the second clamping plates are of arc-shaped structures capable of being attached to the kiln head and the kiln tail, the plurality of second clamping plates can form a circular ring-shaped structure, and the adjacent second clamping plates are attached to each other. By arranging the elastic extrusion assembly and the second clamping plate, the second clamping plate is pushed by the elastic extrusion assembly to extrude the connecting port of the kiln head (or the kiln tail) and the kiln cylinder, so that the stress of the second clamping plate is more uniform, and the overall sealing performance of the connecting port is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cement production equipment, in particular to a sealing device for a cement kiln head and tail. Background Art

[0002] The working principle of cement kiln is to mix raw materials such as clay and limestone and burn them into block-shaped clinker. These clinkers are ground into hydraulic cementitious materials (cement) as we know them. During the production process, the kiln head needs to be sealed with the kiln barrel to prevent materials from leaking out from the gap between the kiln head and the kiln barrel. However, most of the existing cement kiln heads are sealed by connecting the kiln barrel and the kiln head with a clamp ring, which easily leads to poor sealing between the kiln barrel and the kiln head, which in turn leads to the problem of leakage of items.

[0003] In order to address the above problems, a Chinese patent with an existing announcement number of CN217130610U proposes a cement kiln head sealing structure, which is achieved by sleeves of an upper clamping ring and a lower clamping ring on the connection between the fixed cylinder and the kiln cylinder, and then a synchronous double sealing assembly is used to make the rubber rod contact with the outside of the fixed cylinder and the kiln cylinder, while the threaded rod drives the rubber ring to seal the connection between the fixed cylinder and the kiln cylinder, thereby improving the sealing between the fixed cylinder and the kiln cylinder.

[0004] However, although the above-mentioned cement kiln head sealing structure can synchronously control the cooperation of the rubber rod and the rubber ring through the double sealing components to improve the sealing performance of the fixed cylinder and the kiln cylinder, when the cement kiln head sealing structure drives the rubber ring to move through the threaded rod, the thrust of the threaded rod only acts on one point of the rubber ring, resulting in poor fit between the remaining positions of the rubber ring and the fixed cylinder and the kiln cylinder, thereby reducing the sealing performance of the connection between the fixed cylinder and the kiln cylinder. Therefore, the utility model provides a cement kiln head and kiln tail sealing device to meet the demand. Utility Model Content

[0005] The utility model aims to solve the problems existing in the above-mentioned background technology and proposes a cement kiln head and kiln tail sealing device.

[0006] The technical problem to be solved by the utility model is to provide a cement kiln head and kiln tail sealing device to solve the problem that when the existing cement kiln sealing structure drives the rubber ring to seal the connection between the kiln cylinder and the fixed cylinder through the threaded rod, the thrust of the threaded rod is uneven, resulting in poor fit of the rubber ring, thereby reducing the sealing performance of the connection between the fixed cylinder and the kiln cylinder.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0008] A cement kiln head and kiln tail sealing device, comprising:

[0009] Two first clamping plates, each having grooves disposed therein opposite to each other, wherein the two grooves can form a circular ring structure;

[0010] A plurality of second clamping plates are slidably arranged in the grooves, a plurality of groups of elastic extrusion components capable of elastic deformation are arranged between the second clamping plates and the grooves, the second clamping plates are arc-shaped structures capable of fitting with the kiln head and the kiln tail, a plurality of the second clamping plates can form a circular ring structure, and adjacent second clamping plates fit with each other.

[0011] Preferably, the elastic extrusion component comprises:

[0012] a fixing block fixed in the groove;

[0013] A movable plate is slidably arranged in the fixed block, and a movable groove is provided in the fixed block for the movable plate to move;

[0014] A movable rod, two ends of which are respectively fixedly connected to the second clamping plate and the movable plate, and the movable rod is movably connected to the fixed block;

[0015] A spring is fixed to an end of the movable plate away from the movable rod.

[0016] Preferably, a connecting plate is fixedly connected to the first end of the second clamping plate, and a connecting groove which can be fitted and slidably connected to the connecting plate is formed at the second end of the second clamping plate.

[0017] Preferably, a second sealing gasket is fixedly connected to the end surface of the second clamping plate facing away from the movable rod.

[0018] Preferably, the second sealing gasket is fixedly connected with stripes at intervals along its width direction.

[0019] Preferably, first sealing gaskets are fixedly connected to inner walls at both ends of the first clamping plate.

[0020] Preferably, both sides of the two first clamping plates are fixedly connected with mounting plates, and the two first clamping plates can be mounted through the mounting plates.

[0021] Compared with the prior art, the utility model has at least the following beneficial effects:

[0022] In the above scheme, an elastic extrusion component and a second clamping plate are provided, and the elastic extrusion component pushes the second clamping plate to squeeze the connection between the kiln head (or kiln tail) and the kiln barrel, so that the force on the second clamping plate is more uniform and the overall sealing of the connection is further improved.

[0023] In the above scheme, by setting the second sealing gasket and the strip pattern, the second sealing gasket can increase the fit between the second clamping plate and the connection port, improve the sealing of the connection port, and at the same time, multiple strip patterns are set to provide multiple protections and achieve multiple sealing at the connection port. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 For this utility model Figure 1 Schematic diagram of the internal structure after cutting open;

[0027] Figure 3 It is a structural schematic diagram of the second clamping plate, the first clamping plate and the groove of the utility model;

[0028] Figure 4 It is a partial structural schematic diagram of the second clamping plate and the second sealing gasket of the utility model;

[0029] Figure 5 It is a partial structural schematic diagram of the elastic extrusion component of the utility model;

[0030] Figure 6 It is a schematic diagram of the local structure of the stripe pattern of the utility model.

[0031] [Reference Signs]

[0032] 1. First clamping plate; 2. First sealing gasket; 3. Second clamping plate; 4. Mounting plate; 5. Groove; 6. Second sealing gasket; 7. Connecting groove; 8. Connecting plate; 9. Elastic extrusion assembly; 91. Fixed block; 92. Movable plate; 93. Movable rod; 94. Spring; 95. Movable groove; 10. Strip pattern. DETAILED DESCRIPTION

[0033] like Figures 1 to 6 As shown, an embodiment of the utility model provides a cement kiln head and kiln tail sealing device, including two first clamping plates 1, each of which has grooves 5 relatively opened inside, the two grooves 5 can form a circular ring structure, a plurality of second clamping plates 3, which are slidably arranged in the grooves 5, a plurality of groups of elastic extrusion components 9 that can undergo elastic deformation are arranged between the second clamping plates 3 and the grooves 5, the second clamping plates 3 are arc-shaped structures that can fit with the kiln head and the kiln tail, a plurality of second clamping plates 3 can form a circular ring structure, and adjacent second clamping plates 3 fit with each other.

[0034] Specifically, two first clamping plates 1 are installed at the connection port between the kiln head (or kiln tail) and the kiln barrel, so that the second clamping plate 3 is arranged opposite to the connection port, and then the two first clamping plates 1 are relatively close and fixed, so that the first clamping plate 1 applies a thrust to the second clamping plate 3 through the elastic extrusion component 9, thereby pushing multiple second clamping plates 3 to fit the connection port under the elastic force of the elastic extrusion component 9, thereby improving the sealing of the connection port. Due to the arrangement of multiple groups of elastic extrusion components 9 and multiple second clamping plates 3, the sealing of the connection port is improved, and the multiple second clamping plates 3 are subjected to uniform force at the connection port, further improving the sealing of the connection port between the kiln head (or kiln tail) and the kiln barrel, and solving the problem that when the existing cement kiln sealing structure drives the rubber ring to seal the connection port between the kiln barrel and the fixed barrel through the threaded rod, the rubber ring has poor fit due to the uneven thrust of the threaded rod, thereby reducing the sealing of the connection port between the fixed barrel and the kiln barrel.

[0035] It should be noted that when the two first clamping plates 1 are not installed, the second clamping plate 3 protrudes from the groove 5. When the two first clamping plates 1 are installed close to each other, the second clamping plate 3 moves toward the groove 5 under the action of the elastic extrusion component 9 and seals the connection port. At the same time, when the two first clamping plates 1 are connected, the adjacent second clamping plates 3 do not contact, and the multiple second clamping plates 3 are arranged at equal intervals. When the multiple second clamping plates 3 are flush with the groove 5, the connections of the multiple second clamping plates 3 fit each other. There are many ways to fit them. For example, matching wedge blocks and wedge grooves (the shapes of the wedge blocks and wedge grooves are not limited) can be set at the ends where the adjacent second clamping plates 3 contact. When the height of the second clamping plates 3 fits with the groove 5, the wedge blocks and wedge grooves fit together, thereby improving the sealing of the connection port.

[0036] like Figure 2 and Figure 5 As shown, in the present embodiment, the elastic extrusion assembly 9 includes a fixed block 91, which is fixed in the groove 5, a movable plate 92, which is slidably arranged in the fixed block 91, and a movable groove 95 is provided in the fixed block 91 for the movable plate 92 to move, a movable rod 93, whose two ends are respectively fixedly connected to the second clamping plate 3 and the movable plate 92, the movable rod 93 is movably connected to the fixed block 91, and a spring 94 is fixed to the end of the movable plate 92 away from the movable rod 93. Specifically, when the two first clamping plates 1 are installed, the interaction between the second clamping plate 3 and the first clamping plate 1 causes the spring 94 to apply a thrust to the movable plate 92, thereby pushing the second clamping plate 3 to fit and seal the connection port through the movable rod 93.

[0037] like Figure 4As shown, in this embodiment, the first end of the second clamping plate 3 is fixedly connected to the connecting plate 8, and the second end of the second clamping plate 3 is provided with a connecting groove 7 that can be fitted and slidably connected with the connecting plate 8. Specifically, the connecting port and the connecting groove 7 are staggered and matched arc structures. When adjacent second clamping plates 3 are close to each other, the connecting plate 8 is connected with the connecting groove 7, thereby realizing the connection of multiple second clamping plates 3.

[0038] like Figure 4 and Figure 6 As shown, in the present embodiment, the end face of the second clamping plate 3 facing away from the movable rod 93 is fixedly connected with a second sealing gasket 6, and a plurality of stripes 10 are fixedly connected to the second sealing gasket 6 at intervals along its width direction. Specifically, the second sealing gasket 6 can increase the fit between the second clamping plate 3 and the connecting port, thereby improving the sealing of the connecting port. At the same time, the arrangement of the plurality of stripes 10 provides multiple protections, thereby realizing multiple sealings at the connecting port.

[0039] like Figure 1 and Figure 3 As shown, in this embodiment, the inner walls at both ends of the first clamping plate 1 are fixedly connected with the first sealing gasket 2, and the two sides of the two first clamping plates 1 are fixedly connected with the mounting plates 4, and the two first clamping plates 1 can be installed through the mounting plates 4. Specifically, the first sealing gasket 2 can improve the sealing performance between the first clamping plate 1 and the kiln head (or kiln tail) and the kiln barrel. Secondly, the two first clamping plates 1 can be installed through the mounting plates 4, and the installation of the mounting plates 4 can be achieved by bolts, locating pins, etc.

[0040] Working principle:

[0041] The two first clamping plates 1 are installed at the connection port between the kiln head (or kiln tail) and the kiln cylinder, so that the second clamping plate 3 is arranged opposite to the connection port, and then the two first clamping plates 1 are relatively close to each other and fixed through the mounting plate 4. The interaction between the second clamping plate 3 and the first clamping plate 1 causes the spring 94 to apply a thrust to the movable plate 92, so that the second clamping plate 3 is pushed to fit and seal the connection port through the movable rod 93, thereby improving the sealing of the connection port. At the same time, the first rubber pad and the second rubber pad are both connected to the kiln head (or kiln tail) and the kiln cylinder. The kiln tail) and the kiln barrel are fitted, and the sealing performance at the connection port is improved due to the arrangement of multiple groups of elastic extrusion components 9 and multiple second clamping plates 3, and the multiple second clamping plates 3 are evenly stressed at the connection port, which further improves the sealing performance at the connection port between the kiln head (or kiln tail) and the kiln barrel, and solves the problem that when the existing cement kiln sealing structure drives the rubber ring to seal the connection port of the kiln barrel and the fixed barrel through the threaded rod, the rubber ring has poor fit due to the uneven thrust of the threaded rod, thereby reducing the sealing performance at the connection port between the fixed barrel and the kiln barrel.

Claims

1. A cement kiln head and kiln tail sealing device, characterized in that: include: Two first clamping plates (1) have grooves (5) formed therein opposite to each other, and the two grooves (5) can form a circular ring structure; A plurality of second clamping plates (3) are slidably arranged in the groove (5); a plurality of groups of elastic extrusion components (9) capable of elastic deformation are arranged between the second clamping plates (3) and the groove (5); the second clamping plates (3) are arc-shaped structures capable of fitting with the kiln head and the kiln tail; a plurality of the second clamping plates (3) can form a circular ring structure; adjacent second clamping plates (3) fit with each other.

2. The cement kiln head and tail sealing device according to claim 1 is characterized in that: The elastic extrusion component (9) comprises: A fixing block (91) fixed in the groove (5); A movable plate (92) is slidably disposed in the fixed block (91), and a movable groove (95) is provided in the fixed block (91) for the movable plate (92) to move; A movable rod (93), two ends of which are respectively fixedly connected to the second clamping plate (3) and the movable plate (92), and the movable rod (93) is movably connected to the fixed block (91); A spring (94) is fixed to one end of the movable plate (92) which is away from the movable rod (93).

3. The sealing device for cement kiln head and tail according to claim 2 is characterized in that: The first end of the second clamping plate (3) is fixedly connected to a connecting plate (8), and the second end of the second clamping plate (3) is provided with a connecting groove (7) that can fit and slide with the connecting plate (8).

4. The cement kiln head and tail sealing device according to claim 3 is characterized in that: The end surface of the second clamping plate (3) facing away from the movable rod (93) is fixedly connected to a second sealing gasket (6).

5. The cement kiln head and tail sealing device according to claim 4 is characterized in that: The second sealing gasket (6) is fixedly connected with stripe patterns (10) at intervals along its width direction.

6. The cement kiln head and tail sealing device according to claim 1 is characterized in that: The inner walls at both ends of the first clamping plate (1) are fixedly connected with first sealing pads (2).

7. The cement kiln head and tail sealing device according to claim 6 is characterized in that: The two first clamping plates (1) are fixedly connected to mounting plates (4) on both sides, and the two first clamping plates (1) can be mounted via the mounting plates (4).

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