Clamp structure capable of quickly replacing mechanical seal for desulfurizing tower stirrer

Abstract

The utility model relates to the technical field of mechanical seal replacement clamps, in particular to a clamp structure capable of quickly replacing a mechanical seal for a desulfurizing tower stirrer, which comprises two symmetrically arranged clamping pieces, symmetrical clamping grooves are arranged on opposite surfaces of the two clamping pieces, and the clamping grooves are arranged in the clamping grooves. Connecting pieces matched with each other are arranged on the outer surfaces of the two clamping pieces, and a plurality of fixing holes are formed in the two clamping pieces. When the two clamping pieces get close to each other, the two clamping grooves get close to each other and clamp the outer surface of a stirring machine shaft of the stirring machine, the multiple fixing holes and the stirring machine are jointly provided with fasteners, and the two connecting pieces are jointly provided with a fixing assembly. According to the utility model, the clamp structure is optimally designed, so that the mechanical seal of the side stirrer of the desulfurizing tower can be quickly mounted and dismounted.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical seal replacement fixtures, in particular to a fixture structure for quickly replacing a mechanical seal for a desulfurization tower agitator. Background Art

[0002] In industrial production, as a key component of environmental protection equipment, the stable operation of the kiln desulfurization tower is crucial for ensuring production continuity and reducing environmental pollution. However, after the kiln is ignited and the desulfurization tower starts to operate, the internal side agitator equipment works continuously, making it difficult to carry out immediate shutdown maintenance. In this case, once the mechanical seal of the side agitator is damaged, the medium inside the tower (such as water) under high temperature and high pressure will quickly gush out, not only threatening the safety of the equipment but also possibly causing serious harm to the operators.

[0003] Traditional methods for replacing mechanical seals require draining the tower and closing the kiln flue gas. This process is complex and time-consuming, directly resulting in the interruption of kiln production and huge production losses. In addition, frequent tower shutdown operations will also affect the treatment efficiency of the desulfurization tower and increase the maintenance cost. Although there are some fixture designs on the market aimed at replacing mechanical seals without shutting down the tower, these solutions often have problems such as complex operation and low efficiency, and are difficult to meet the requirements of modern industrial production for efficient, safe, and continuous operation.

[0004] Therefore, there is an urgent need for a fixture structure for quickly replacing a mechanical seal for a desulfurization tower agitator. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a fixture structure for quickly replacing a mechanical seal for a desulfurization tower agitator, so as to solve the problems of complex operation and low efficiency existing in the existing fixture for replacing the mechanical seal of the agitator, and it is difficult to meet the requirements of modern industrial production for efficient, safe, and continuous operation.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A fixture structure for quickly replacing a mechanical seal for a desulfurization tower agitator includes two symmetrically arranged clamping members. Symmetric clamping grooves are provided on the facing surfaces of the two clamping members. Matching connecting members are arranged on the outer surfaces of the two clamping members, and a number of fixing holes are provided on the two clamping members;

[0008] When the two clamping members approach each other, the two clamping grooves approach each other and clamp the outer surface of the agitator shaft of the agitator. A number of fasteners are installed together with the agitator through the fixing holes, and a fixing component is installed together on the two connecting members.

[0009] Preferably, the clamping member includes a semi-circular flange and a semi-cylindrical bushing. The lower end of the semi-cylindrical bushing is fixedly connected to the upper end of the semi-circular flange, and a plurality of the fixing holes are formed in the semi-circular flange.

[0010] Preferably, the semi-cylindrical bushing includes an arc surface and a vertical section. The connecting member protrudes on the arc surface. The facing surfaces of the connecting members on the two clamping members are connecting surfaces, and the connecting surface of the connecting member is flush with the vertical section.

[0011] Preferably, at least two of the connecting members are provided on the clamping member, and the two connecting members on the clamping member are symmetrically arranged on both sides of the clamping member respectively.

[0012] Preferably, a sealing ring is further installed on the inner groove surface of the clamping groove.

[0013] Preferably, the lower end of the semi-cylindrical bushing is fixedly connected to the upper end of the semi-circular flange by welding.

[0014] Preferably, the fixing hole is in a quasi-elliptical shape and has an internal thread. The fastening member is a first screw, and the first screw is threadedly connected to the fixing hole.

[0015] Preferably, the fixing assembly includes a second screw and a second bolt. A connecting hole is formed in the connecting member. One end of the second screw passes through the connecting holes of the two connecting members in sequence, and one end of the second screw is threadedly connected to the second bolt to realize the fixed connection of the two connecting members.

[0016] Preferably, the connecting member is in one or a combination of a square shape, a circular shape, and an elliptical shape.

[0017] One of the above technical solutions has the following beneficial effects: A highly precise clamping groove is designed on the inner side of each clamping member. The clamping groove is precisely matched according to the size of the mixer shaft, ensuring tight fit and uniform force during clamping, effectively preventing damage to the shaft surface of the mixer shaft. A plurality of groups of uniformly distributed fixing holes are formed in the two clamping members. These fixing holes not only facilitate alignment with the preset hole positions on the mixer but also allow the use of fastening members for multi-point fastening, further enhancing the stability and sealing performance of the clamping. In addition, the outer surfaces of the two clamping members are also designed with mutually cooperating connecting members. These connecting members allow the two clamping members to achieve precise docking and locking in an extremely short time without complex operations, greatly improving the replacement efficiency. At the same time, a fixing assembly for safety locking is also equipped on the connecting member to ensure the stability and safety of the fixture during operation. Description of the Drawings

[0018] Figure 1It is a schematic structural diagram of a fixture structure with a mechanically sealed structure that can be quickly replaced for a desulfurization tower mixer of the present utility model;

[0019] Figure 2 It is a top view schematic diagram of a fixture structure with a mechanically sealed structure that can be quickly replaced for a desulfurization tower mixer of the present utility model;

[0020] Figure 3 It is a schematic structural diagram of a side-position mixer of a desulfurization tower of the present utility model;

[0021] In the drawings: clamping member 1, semi-circular flange 11, semi-cylindrical bushing 12, clamping groove 2, connecting member 3, fixing hole 4, fixing hole 4, fastener 5, fixing assembly 6, second screw 61, second bolt 62, sealing ring 7, desulfurization tower 10, adjusting motor 20, frame 30, belt 40, bearing housing 50, large pulley 60, mixer shaft 70, mechanical seal 80. Detailed implementation manners

[0022] The technical solutions of the present utility model will be further described below with reference to the drawings and through specific implementation manners.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] Such asFigure 1-2 As shown in the figure, a fixture structure for a mechanical seal that can be quickly replaced for a desulfurization tower agitator, comprising two symmetrically arranged clamping members 1. Symmetric clamping grooves 2 are provided on the opposing surfaces of the two clamping members 1. Matching connecting members 3 are provided on the outer surfaces of the two clamping members 1. A number of fixing holes 4 are provided on the two clamping members 1;

[0027] When the two clamping members 1 approach each other, the two clamping grooves 2 approach each other and clamp onto the outer surface of the agitator shaft 70 of the agitator. A number of the fixing holes 4 and the agitator are jointly installed with fasteners 5. A fixing assembly 6 is jointly installed on the two connecting members 3.

[0028] This fixture structure is composed of two completely symmetric clamping members 1. A highly precise clamping groove 2 is designed on the inner side of each clamping member 1. The clamping groove 2 is precisely matched according to the size of the agitator shaft 70 to ensure tight fit and uniform force during clamping, effectively preventing damage to the shaft surface of the agitator shaft 70. A number of evenly distributed fixing holes 4 are provided on the two clamping members 1. These fixing holes 4 not only facilitate alignment with the preset hole positions on the agitator, but also allow the use of fasteners 5 for multi-point fastening, further enhancing the clamping stability and sealing performance. In addition, the outer surfaces of the two clamping members 1 are also designed with matching connecting members 3. These connecting members 3 allow the two clamping members 1 to achieve precise docking and locking in a very short time, without complex operations, greatly improving the replacement efficiency. At the same time, a fixing assembly 6 with safety locking is also equipped on the connecting members 3 to ensure the stability and safety of the fixture during operation.

[0029] In summary, this mechanical seal can quickly and safely complete the replacement of the mechanical seal under the condition that the desulfurization tower is operating normally, without stopping the tower to drain water or closing the kiln flue gas, thereby greatly reducing production losses, improving maintenance efficiency, and ensuring the safety of operators.

[0030] For further illustration, the clamping member 1 includes a semi-circular flange 11 and a semi-cylindrical bushing 12. The lower end of the semi-cylindrical bushing 12 is fixedly connected to the upper end of the semi-circular flange 11. A number of the fixing holes 4 are provided on the semi-circular flange 11.

[0031] First of all, as the basic support structure of the clamping member 1, the semi-circular flange 11 is designed with a flat and wide contact surface to ensure tight fit with the fixed structure or installation platform around the agitator. A number of highly precisely machined fixing holes 4 are evenly distributed thereon. These fixing holes 4 not only facilitate alignment with the bolt holes of the installation base, but also allow the use of fasteners 5 for firm connection, enhancing the stability of the entire fixture structure.

[0032] Secondly, as the part directly contacting the mixer shaft 70, the semi-cylindrical shaft sleeve 12 is made of wear-resistant and corrosion-resistant materials. Its inner diameter is precisely matched to the size of the mixer shaft 70 to ensure a tight and uniform contact surface during clamping. The semi-cylindrical shaft sleeves 12 of the two clamping members 1 work together to stably clamp the mixer shaft 70 in the middle, which not only ensures the safe progress of the mechanical seal replacement operation but also avoids shaft surface damage caused by unstable clamping.

[0033] Finally, the combined design of the semi-circular flange 11 and the semi-cylindrical shaft sleeve 12 enables the entire fixture structure to provide stable supporting forces in multiple directions, effectively preventing the mixer shaft 70 from shaking or shifting during replacement.

[0034] For further illustration, the semi-cylindrical shaft sleeve 12 includes an arc surface and a vertical section. The connecting member 3 protrudes on the arc surface. The facing surfaces of the connecting members 3 on the two clamping members 1 are connecting surfaces, and the connecting surface of the connecting member 3 is flush with the vertical section.

[0035] Specifically, the connecting member 3 is directly cast or forged on the arc surface of the semi-cylindrical shaft sleeve 12 to form an integrated structure, avoiding additional assembly steps and improving the overall stability and durability. The connecting surface of the connecting member 3 is finely processed to ensure perfect flush with the vertical section, which is not only aesthetically pleasing but also improves the connection tightness.

[0036] For further illustration, at least two connecting members 3 are provided on the clamping member 1, and the two connecting members 3 on the clamping member 1 are symmetrically arranged on both sides of the clamping member 1 respectively.

[0037] The symmetrical design is not only more visually balanced and aesthetically pleasing, but more importantly, it achieves better stability in mechanics. When the two clamping members 1 clamp on the mixer shaft 70, the connecting members 3 on both sides can evenly share the force and maintain stability, reducing the risk of deformation or damage caused by excessive force on one side.

[0038] For further illustration, a sealing ring 7 is also installed on the inner groove surface of the clamping groove 2. When the clamping member 1 contacts the mixer shaft 70 and applies a certain pressure, the sealing ring 7 deforms due to extrusion and closely fits between the surface of the mixer shaft 70 and the inner groove surface of the clamping groove 2. This tight fit forms an effective sealing barrier to prevent the leakage of liquids, gases or solid particles.

[0039] For further illustration, the lower end of the semi-cylindrical bushing 12 is fixedly connected to the upper end of the semi-circular flange 11 by welding. Specifically, the semi-circular flange 11 is obtained by cutting a circular flange in half, and the semi-cylindrical bushing 12 is obtained by cutting a cylindrical clamping bushing in half. Then, the semi-circular flange 11 and the semi-cylindrical bushing 12 are seamlessly integrated at their lower and upper ends through a high-strength welding connection method to form a stable and flexible clamping member 1.

[0040] For further illustration, the fixing hole 4 is approximately elliptical, and the fixing hole 4 has internal threads. The fastener 5 is a first screw, and the first screw is threadedly connected to the fixing hole 4. Specifically, the design of the approximately elliptical fixing hole 4 increases the freedom of the fastener 5 in the hole, which helps to reduce the assembly difficulty caused by the deviation of the installation angle. At the same time, the tight fit between the internal threads and the first screw ensures the stability of the connection.

[0041] For further illustration, the fixing assembly 6 includes a second screw 61 and a second bolt 62. The connecting member 3 is provided with a connecting hole. One end of the second screw 61 sequentially passes through the connecting holes of the two connecting members 3, and one end of the second screw 61 is threadedly connected to the second bolt 62 to realize the fixed connection of the two connecting members 3.

[0042] Specifically, the stable and reliable fixing assembly 6 reduces the safety hazards caused by loosening or falling off, which not only ensures the safe progress of the mechanical seal replacement operation, but also avoids the shaft surface damage caused by unstable clamping, improving the safety and reliability.

[0043] For further illustration, the connecting member 3 is one or a combination of a square, a circle, and an ellipse.

[0044] On the basis of maintaining the basic shape framework, the size and specific shape parameters of the connecting member 3, such as side length, diameter, and the ratio of the major axis to the minor axis, can be finely adjusted according to actual needs. This adjustability enables the connecting member 3 to more precisely adapt to components of different sizes and shapes, improving the tightness and stability of the connection.

[0045] The specific working principle of the present utility model is as follows:

[0046] As Figure 3As shown, under the condition that the desulfurization tower 10 is not discharging material, first disconnect the power supply, then remove the belt cover, adjust the distance between the motor 20 and the frame 30, remove the belt 40, remove the bolts connecting the bearing chamber 50 and the frame 30, loosen the mechanical set screws, and use four upper and lower push screws to push the large pulley 60, the bearing chamber 50 and the mixer shaft 70 outward together, and plug them tightly. Loosen the bolts connecting the mechanical seal 80 and the mounting base, and move the mechanical seal 80 outward. Start installing this fixture structure: first quickly dock and lock the two clamps 1 through the connector 3, and then accurately align them with the mixer shaft 70 so that the clamping groove 2 fits tightly to the shaft surface. Subsequently, install the fasteners 5 through the multiple fixing holes 4 to achieve preliminary tightening. Finally, the fixing assembly 6 is used to provide additional locking force to ensure that the entire fixture structure is firmly fixed on the mixer shaft 70, so as to safely and efficiently replace the mechanical seal 80, then clean the mixer shaft 70, and then install the new mechanical seal 80, bearing chamber 50, mixer shaft 70 and large pulley 60 in sequence. Remove the fixture structure, move the new mechanical seal 80, tighten the mechanical set screws, remove the four upper and lower screws, install the bearing chamber 50, tighten the connecting bolts between the bearing chamber 50 and the frame 30, and then turn the large pulley 60 by hand to make the mixer shaft 70 rotate two circles each in the forward and reverse directions. The rotation must be flexible and without lag, and then install the belt 40, adjust the distance between the motor 20 and the frame 30 to tighten the belt, and install the belt cover.

[0047] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementations of the present invention without creative work, and these equivalent variations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A fixture structure for a mechanical seal that can be quickly replaced for a desulfurization tower agitator, characterized in that, It includes two symmetrically arranged clamping members (1). Symmetric clamping grooves (2) are formed on the facing surfaces of the two clamping members (1). Matching connecting members (3) are provided on the outer surfaces of the two clamping members (1). A number of fixing holes (4) are formed on the two clamping members (1). When the two clamping members (1) approach each other, the two clamping grooves (2) approach each other and clamp onto the outer surface of the mixing shaft (70) of the mixer. A fastener (5) is jointly installed with the mixer through the number of fixing holes (4). A fixing assembly (6) is jointly installed on the two connecting members (3). The clamping member (1) includes a semi-circular flange (11) and a semi-cylindrical bushing (12). The lower end of the semi-cylindrical bushing (12) is fixedly connected to the upper end of the semi-circular flange (11). A number of the fixing holes (4) are formed on the semi-circular flange (11). The semi-cylindrical bushing (12) includes an arc surface and a vertical section. The connecting member (3) protrudes on the arc surface. The facing surfaces of the connecting members (3) on the two clamping members (1) are connecting surfaces, and the connecting surface of the connecting member (3) is flush with the vertical section.

2. The fixture structure for a quick-change mechanical seal used in a desulfurization tower agitator according to claim 1, characterized in that, At least two connecting members (3) are provided on the clamping member (1), and the two connecting members (3) on the clamping member (1) are symmetrically arranged on both sides of the clamping member (1) respectively.

3. The fixture structure for a mechanical seal that can be quickly replaced and is used in a desulfurization tower mixer according to claim 1, wherein, A sealing ring (7) is further installed on the inner groove surface of the clamping groove (2).

4. The fixture structure for a mechanical seal that can be quickly replaced for a desulfurization tower agitator according to claim 2, characterized in that, The lower end of the semi-cylindrical bushing (12) is fixedly connected to the upper end of the semi-circular flange (11) by welding.

5. A fixture structure for a mechanical seal that can be quickly replaced in a desulfurization tower agitator according to claim 1, characterized in that, The fixing hole (4) is in an approximately elliptical shape and has internal threads. The fastener (5) is a first screw, and the first screw is threadedly connected to the fixing hole (4).

6. The fixture structure for a mechanical seal that can be quickly replaced for a desulfurization tower agitator according to claim 1, characterized in that, The fixing assembly (6) includes a second screw (61) and a second bolt (62). The connecting member (3) is provided with a connecting hole. One end of the second screw (61) sequentially passes through the connecting holes of the two connecting members (3), and one end of the second screw (61) is threadedly connected to the second bolt (62) to realize the fixed connection of the two connecting members (3).

7. The fixture structure with a mechanically sealed structure that can be quickly replaced for a desulfurization tower agitator according to claim 1, characterized in that, The connecting member (3) is in one or a combination of a square, a circle, and an ellipse.

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