Leakage-proof device of horizontal screw centrifuge

Abstract

The utility model relates to the technical field of horizontal screw centrifuges, in particular to an anti-leakage device of a horizontal screw centrifuge, which comprises a casing, a connecting seat is fixedly connected to the lower part of the outer surface of the casing, L-shaped mounting plates are fixedly connected to the front and rear parts of the lower end of the connecting seat, and three first screws are inserted into the inner wall surfaces of the two L-shaped mounting plates. A plurality of threaded holes are formed in the right end of the machine shell, a first sealing ring is fixedly connected to the inner wall face of the machine shell, a second sealing ring is arranged in the first sealing ring in a sleeved mode, and a clamping ring is fixedly connected to the inner wall face of the second sealing ring. According to the anti-leakage device of the horizontal screw centrifugal machine, the first sealing ring and the second sealing ring on the inner wall of the machine shell form a multi-layer barrier, the clamping ring is matched to be connected with the clamping ring groove of the rotary drum in a clamped mode, the sealing fitting degree is enhanced, and double sealing can still effectively prevent materials from leaking; and resource waste, environmental pollution and potential safety hazards caused by sealing failure are reduced.

Description

Technical Field

[0001] This utility model relates to the field of horizontal screw centrifuge technology, and in particular to a leak-proof device for a horizontal screw centrifuge. Background Technology

[0002] A horizontal screw centrifuge is a device that uses centrifugal force to achieve solid-liquid separation. It is widely used in chemical, food, pharmaceutical, and environmental protection industries for the continuous separation, concentration, or dehydration of suspensions. This device mainly improves the sealing structure and connection design of the horizontal screw centrifuge to enhance the reliability and maintenance efficiency of the equipment.

[0003] In existing horizontal decanter centrifuges, the connection between the drive unit and the casing is complex, requiring the disassembly of multiple components during maintenance, which is time-consuming and labor-intensive. Especially when inspecting or replacing internal seals, the entire drive system often needs to be disassembled, resulting in prolonged downtime and reduced production efficiency. Furthermore, during operation, the seal between the drum and the casing in traditional horizontal decanter centrifuges is prone to failure due to material erosion, mechanical vibration, or long-term wear, leading to material leakage. Utility Model Content

[0004] The main purpose of this invention is to provide a leak-proof device for a horizontal screw centrifuge, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A leak-proof device for a horizontal decanter centrifuge includes a housing. A connecting seat is fixedly connected to the lower part of the outer surface of the housing. L-shaped mounting plates are fixedly connected to the front and rear parts of the lower end of the connecting seat. Three first screws are inserted into the inner wall surfaces of the two L-shaped mounting plates. Several threaded holes are provided at the right end of the housing. A first sealing ring is fixedly connected to the inner wall surface of the housing. A second sealing ring is fitted inside the first sealing ring. A retaining ring is fixedly connected to the inner wall surface of the second sealing ring. The retaining ring engages with a rotating drum. A retaining ring groove adapted to the retaining ring is provided on the outer surface of the rotating drum. A convenient inspection device is threadedly connected to the several threaded holes. A driving device is fixedly connected to the right end of the convenient inspection device.

[0007] The inspection device includes a first annular connecting ring and a second annular connecting ring, and the left end of both the first annular connecting ring and the second annular connecting ring is provided with a number of left and right through positioning holes.

[0008] Preferably, an mounting plate is fixedly connected to the inner wall of the second annular connecting ring, and a second screw is inserted into a plurality of the positioning holes. The left end of the first annular connecting ring is tightly fitted to the right end of the housing.

[0009] Preferably, the right end of the first annular connecting ring is tightly fitted with the left end of the second annular connecting ring, and the positioning holes of the two are in one-to-one correspondence. Several second screws pass through several positioning holes and are threadedly connected to several threaded holes, so as to tightly fit the first annular connecting ring and the second annular connecting ring together.

[0010] Preferably, the mounting plate is circular and coaxially arranged with the second annular connecting ring, and the edge of the mounting plate is fixedly connected to the inner wall of the second annular connecting ring by welding.

[0011] Preferably, a plurality of the second screws are arranged in a circular array around the center of the second annular connecting ring.

[0012] Preferably, the driving device includes an L-shaped connecting plate, a rotary motor is fixedly connected to the upper part of the inner wall surface of the L-shaped connecting plate, a drive gear is fixedly connected to the output end of the rotary motor, a movable rod is movably connected to the lower part of the inner wall surface of the L-shaped connecting plate through a bearing, a driven gear is fixedly connected to the left end of the movable rod, a drive rod is fixedly connected to the left end of the driven gear, and the left end of the L-shaped connecting plate is fixedly connected to the right end of the rotary motor.

[0013] Preferably, the driving gear meshes with the driven gear, and the left end of the driving gear is movably connected to the right end of the mounting plate via a bearing.

[0014] Preferably, the end of the drive rod away from the driven gear passes through the mounting plate and is fixedly connected to the right end of the drum.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In this invention, the device is designed as a combination of a first annular connecting ring and a second annular connecting ring, which are detachably connected by a positioning hole and a second screw. The device is also fixed to the housing by a threaded connection. When it is necessary to inspect or replace internal seals, such as the first sealing ring and the second sealing ring, the device can be separated from the housing simply by removing the second screw. This greatly simplifies the maintenance process, reduces the number of parts to be disassembled, thereby shortening equipment downtime and improving production efficiency.

[0017] In this invention, the traditional leakage problem is solved by a double sealing structure. The first sealing ring and the second sealing ring on the inner wall of the casing form a multi-layer barrier. They are engaged with the retaining ring and the retaining ring groove of the drum to enhance the sealing fit. Even if subjected to material erosion, mechanical vibration or long-term wear, the double seal can still effectively prevent material leakage, reduce resource waste, environmental pollution and safety hazards caused by seal failure, and improve the reliability of equipment operation. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the overall structure of the anti-leakage device for a horizontal screw centrifuge according to the present invention;

[0019] Figure 2 This is a cross-sectional view of the internal structure of the anti-leakage device for a horizontal screw centrifuge according to the present invention.

[0020] Figure 3 This is a schematic diagram showing the connection and disassembly of the inspection device for the anti-leakage device of a horizontal screw centrifuge according to the present invention;

[0021] Figure 4 This is a schematic diagram showing the connection and disassembly of the drive device of the anti-leakage device for a horizontal screw centrifuge according to this utility model.

[0022] In the diagram: 1. Housing; 2. Connecting seat; 3. L-shaped mounting plate; 4. First screw; 5. Threaded hole; 7. First sealing ring; 8. Second sealing ring; 9. Snap ring; 10. Drum; 11. Snap ring groove; 12. Inspection device; 13. Drive device; 121. First annular connecting ring; 122. Second annular connecting ring; 123. Positioning hole; 124. Mounting plate; 125. Second screw; 131. L-shaped connecting plate; 132. Rotary motor; 133. Drive gear; 134. Movable rod; 135. Driven gear; 136. Drive rod. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please see Figure 1-4 This utility model provides a technical solution:

[0027] A leak-proof device for a horizontal screw centrifuge includes a housing 1. A connecting seat 2 is fixedly connected to the lower part of the outer surface of the housing 1. L-shaped mounting plates 3 are fixedly connected to the front and rear parts of the lower end of the connecting seat 2. Three first screws 4 are inserted into the inner wall of each of the two L-shaped mounting plates 3. Several threaded holes 5 are opened at the right end of the housing 1. A first sealing ring 7 is fixedly connected to the inner wall of the housing 1. A second sealing ring 8 is fitted inside the first sealing ring 7. A retaining ring 9 is fixedly connected to the inner wall of the second sealing ring 8. A rotating drum 10 is engaged with the retaining ring 9. A retaining ring groove 11 that matches the retaining ring 9 is opened on the outer surface of the rotating drum 10. Several threaded holes 5 are threadedly connected to a convenient inspection device 12. A drive device 13 is fixedly connected to the right end of the convenient inspection device 12.

[0028] In this embodiment, the inspection device 12 includes a first annular connecting ring 121 and a second annular connecting ring 122. Both the first and second annular connecting rings 121 and 122 have several through-holes 123 at their left ends. A mounting plate 124 is fixedly connected to the inner wall of the second annular connecting ring 122. Second screws 125 are inserted into the several positioning holes 123. The left end of the first annular connecting ring 121 is tightly fitted to the right end of the housing 1. The right end of the first annular connecting ring 121 is connected to the second annular connecting ring 122. The left ends of 2 are tightly fitted together, and the positioning holes 123 of the two correspond one-to-one. Several second screws 125 pass through several positioning holes 123 and are threadedly connected to several threaded holes 5, so that the first annular connecting ring 121 and the second annular connecting ring 122 are tightly fitted together. The mounting plate 124 is circular and coaxial with the second annular connecting ring 122. The edge of the mounting plate 124 is fixedly connected to the inner wall of the second annular connecting ring 122 by welding. Several second screws 125 are distributed in a ring array around the center of the second annular connecting ring 122.

[0029] Through the above scheme: the left end of the first annular connecting ring 121 is tightly fitted to the right end of the housing 1, and it corresponds one-to-one with the positioning hole 123 on the left end of the second annular connecting ring 122. After the second screw 125 passes through the positioning hole 123, it is threadedly connected to the threaded hole 5 of the housing 1, and the two are tightly fixed on the housing 1 to ensure a stable connection. The inner wall of the second annular connecting ring 122 is welded with the mounting plate 124. The mounting plate 124 is coaxial with the second annular connecting ring 122, providing a mounting support point for the drive device components to ensure their stable operation. The second screws 125 are distributed in a ring array around the center of the second annular connecting ring 122, so that the force on each part is even, avoiding local loosening, enhancing the overall stability, and facilitating disassembly and maintenance.

[0030] In this embodiment, the drive device 13 includes an L-shaped connecting plate 131. A rotary motor 132 is fixedly connected to the upper part of the inner wall of the L-shaped connecting plate 131. A drive gear 133 is fixedly connected to the output end of the rotary motor 132. A movable rod 134 is movably connected to the lower part of the inner wall of the L-shaped connecting plate 131 through a bearing. A driven gear 135 is fixedly connected to the left end of the movable rod 134. A drive rod 136 is fixedly connected to the left end of the driven gear 135. The left end of the L-shaped connecting plate 131 is fixedly connected to the right end of the rotary motor 132. The drive gear 133 meshes with the driven gear 135. The left end of the drive gear 133 is movably connected to the right end of the mounting plate 124 through a bearing. The end of the drive rod 136 away from the driven gear 135 passes through the mounting plate 124 and is fixedly connected to the right end of the drum 10.

[0031] Through the above scheme: the rotary motor 132 is fixed to the upper part of the inner wall of the L-shaped connecting plate 131. After starting, the output end drives the drive gear 133 to rotate. The left end of the drive gear 133 is movably connected to the right end of the mounting plate 124 through a bearing to ensure rotational stability. The drive gear 133 meshes with the driven gear 135 to transmit power to the driven gear 135. The driven gear 135 is fixed to the left end of the movable rod 134. The movable rod 134 is movably connected to the lower part of the inner wall of the L-shaped connecting plate 131 through a bearing to achieve stable rotation. The drive rod 136 at the left end of the driven gear 135 passes through the mounting plate 124 and is fixedly connected to the right end of the drum 10. Power is transmitted to the drum 10 through the drive rod 136, driving the drum 10 to rotate at high speed to complete the centrifugal separation operation. The left end of the L-shaped connecting plate 131 is fixed to the right end of the rotary motor 132, providing a stable support for the entire drive device and ensuring accurate and efficient gear meshing and power transmission.

[0032] It should be noted that this utility model is a leak-proof device for a horizontal screw centrifuge. During use, the material first enters the drum 10 inside the casing 1 through the feeding structure (not shown in the attached drawings). In the drive device 13, the rotary motor 132 drives the drive gear 133 to rotate. Through meshing with the driven gear 135, the drive rod 136 drives the drum 10 to rotate at high speed, using centrifugal force to separate the material. The first sealing ring 7 and the second sealing ring 8 on the inner wall of the casing 1 cooperate to seal the gap between the drum 10 and the casing 1 through the retaining ring 9 and the retaining ring groove 11 to prevent leakage. In the inspection device 12, the first annular connecting ring 121 and the second annular connecting ring 122 are fixed by the second screw 125, the positioning hole 123 and the threaded hole 5. The mounting plate 124 supports the drive component. During maintenance, the inspection device 12 can be separated by removing the second screw 125, which facilitates the maintenance of the internal components. After separation, the material is discharged from the discharge structure, completing the operation.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A leak-proof device for a horizontal decanter centrifuge, comprising a casing (1), characterized in that: A connecting seat (2) is fixedly connected to the lower part of the outer surface of the housing (1). An L-shaped mounting plate (3) is fixedly connected to the front and rear parts of the lower end of the connecting seat (2). Three first screws (4) are inserted into the inner wall of the two L-shaped mounting plates (3). Several threaded holes (5) are opened at the right end of the housing (1). A first sealing ring (7) is fixedly connected to the inner wall of the housing (1). A second sealing ring (8) is fitted inside the first sealing ring (7). A retaining ring (9) is fixedly connected to the inner wall of the second sealing ring (8). A rotating drum (10) is engaged with the retaining ring (9). A retaining ring groove (11) that matches the retaining ring (9) is opened on the outer surface of the rotating drum (10). Several threaded holes (5) are threadedly connected to a convenient inspection device (12). A driving device (13) is fixedly connected to the right end of the convenient inspection device (12). The inspection device (12) includes a first annular connecting ring (121) and a second annular connecting ring (122). The left ends of the first annular connecting ring (121) and the second annular connecting ring (122) are provided with a number of left and right through positioning holes (123).

2. The anti-leakage device for a horizontal screw centrifuge according to claim 1, characterized in that: The inner wall of the second annular connecting ring (122) is fixedly connected to an installation plate (124), and a second screw (125) is inserted into several positioning holes (123). The left end of the first annular connecting ring (121) is tightly fitted to the right end of the housing (1).

3. The anti-leakage device for a horizontal screw centrifuge according to claim 1, characterized in that: The right end of the first annular connecting ring (121) is closely fitted with the left end of the second annular connecting ring (122), and the positioning holes (123) of the two are in one-to-one correspondence. Several second screws (125) pass through several positioning holes (123) and are threadedly connected to several threaded holes (5) to tightly fit the first annular connecting ring (121) and the second annular connecting ring (122).

4. The anti-leakage device for a horizontal screw centrifuge according to claim 2, characterized in that: The mounting plate (124) is circular and coaxially arranged with the second annular connecting ring (122). The edge of the mounting plate (124) is fixedly connected to the inner wall of the second annular connecting ring (122) by welding.

5. The anti-leakage device for a horizontal screw centrifuge according to claim 2, characterized in that: Several of the second screws (125) are arranged in a ring array around the center of the second annular connecting ring (122).

6. The anti-leakage device for a horizontal screw centrifuge according to claim 1, characterized in that: The drive device (13) includes an L-shaped connecting plate (131). A rotary motor (132) is fixedly connected to the upper part of the inner wall of the L-shaped connecting plate (131). A drive gear (133) is fixedly connected to the output end of the rotary motor (132). A movable rod (134) is movably connected to the lower part of the inner wall of the L-shaped connecting plate (131) through a bearing. A driven gear (135) is fixedly connected to the left end of the movable rod (134). A drive rod (136) is fixedly connected to the left end of the driven gear (135). The left end of the L-shaped connecting plate (131) is fixedly connected to the right end of the rotary motor (132).

7. The anti-leakage device for a horizontal screw centrifuge according to claim 6, characterized in that: The driving gear (133) meshes with the driven gear (135), and the left end of the driving gear (133) is movably connected to the right end of the mounting plate (124) via a bearing.

8. The anti-leakage device for a horizontal screw centrifuge according to claim 6, characterized in that: The end of the drive rod (136) away from the driven gear (135) passes through the mounting plate (124) and is fixedly connected to the right end of the drum (10).

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