Sealing device of calcium formate centrifugal machine

Abstract

The utility model relates to the field of chemical equipment, in particular to a sealing device of a calcium formate centrifugal machine, which comprises a box body, a sleeve is embedded in the top of the box body, a groove is formed in the top of the sleeve, a placing frame is rotatably connected to the bottom of an inner cavity of the sleeve, a threaded pipe is embedded in the top of the placing frame, and the threaded pipe is connected with the groove. An inner cavity of the threaded pipe is in threaded connection with a threaded block, the top of the threaded block is fixedly connected with a limiting plate, and a top plate is arranged at the top of the box body. When a top plate makes contact with the box body, a movable plate is pushed by a first spring, so that a limiting block and a sealing gasket at the bottom of the limiting block are tightly attached to the top of the box body, an additional sealing layer is formed, the sealing tightness is ensured, and the possible leakage problem in the centrifugal process is effectively prevented; an additional fastening force is provided, which ensures a tight contact between the top plate and the box, thereby enhancing sealing.

Description

TECHNICAL FIELD

[0001] The utility model belongs to chemical equipment technical field, especially relate to a sealing device of calcium formate centrifuge. BACKGROUND

[0002] The traditional process of producing trimethylolpropane by Alder-Coniazzaro reaction in China at present, its reaction by-product is calcium formate (sodium formate), and the centrifuge is usually used to centrifugally separate TMP and calcium (sodium) formate in the concentrated solution.

[0003] The existing centrifuge is generally hinged between the upper cover and the centrifuge body through a hinge, so that when the upper cover is closed, there is a gap between the upper cover and the centrifuge body, which leads to insufficient sealing. The most direct problem of insufficient sealing is that liquid, gas or solid particles will leak out from the sealing part of the centrifuge, which not only wastes materials, but also may harm the environment and operators. Leakage will reduce the separation efficiency of the centrifuge, because part of the material cannot be effectively separated and is discharged. At the same time, leakage may also lead to imbalance of parameters such as pressure and temperature in the centrifuge, thereby affecting its overall performance. Insufficient sealing will increase the maintenance frequency of the centrifuge, because it needs to be checked and replaced regularly. This not only increases the maintenance cost, but also may affect the normal operation of the production line. SUMMARY

[0004] In view of the above problems, the utility model provides a sealing device of calcium formate centrifuge, including the box, the top of box is inlayed with the sleeve, the top of sleeve is equipped with the recess, the bottom of sleeve inner chamber is rotatably connected with the rack, the top of rack is inlayed with the threaded tube, the inner chamber of threaded tube is connected with the threaded block, the top of threaded block is fixedly connected with the limit board, the top of box is equipped with the top plate, the bottom of top plate is fixedly connected with the labyrinth seal block, the surface of labyrinth seal block is equipped with two rubber rings, the inside of top plate is equipped with the first sealing mechanism, both sides of box are equipped with the second sealing mechanism.

[0005] Further, the first sealing mechanism comprises a cavity formed in the inside of the top plate, the inner cavity of the cavity is slidably connected with a movable plate, the top of the movable plate is fixedly connected with a first spring, one end of the first spring is fixedly connected with the top plate, the bottom of the movable plate is fixedly connected with a limit block, one side of the limit block penetrates through the bottom of the top plate and is fixedly connected with a sealing gasket.

[0006] Further, the second sealing mechanism comprises fixed blocks fixedly connected to the two sides of the box body, an electric telescopic rod fixedly connected to the top of the fixed blocks, a first protruding block drivingly connected to the output end of the electric telescopic rod, the first protruding block being fixedly connected to the top plate on one side, guide rods slidingly connected to the two sides of the top of the fixed blocks, circular blocks fixedly connected to the bottom of the guide rods, second springs sleeved on the surfaces of the guide rods and fixedly connected to the fixed blocks and the circular blocks at two ends, and a second protruding block fixedly connected to the top of the guide rod and fixedly connected to the top plate on one side.

[0007] Further, the surface of the electric telescopic rod is sleeved with a mounting seat, and the mounting seat is screw-connected with a bolt on one side.

[0008] Further, the bottom of the box body is fixedly connected with supporting legs at four corners, and the four supporting legs are symmetrically arranged.

[0009] Further, the top of the box body is provided with positioning holes at four corners, and the bottom of the top plate is fixedly connected with positioning columns matched with the positioning holes.

[0010] Further, the second spring and the circular block form a telescopic structure, and the maximum moving distance of the circular block is equal to the deformation amount of the second spring.

[0011] The device has the advantages that:

[0012] 1. When the top plate contacts the box body, the movable plate is pushed by the first spring, so that the limiting block and the sealing gasket at the bottom thereof are tightly attached to the top of the box body, an additional sealing layer is formed, the tightness of the sealing is ensured, the possible leakage problem in the centrifugal process is effectively prevented, the electric telescopic rod pushes the top plate to move downward through the first protruding block, and additional fastening force is provided, which ensures the tight contact between the top plate and the box body, and thus the sealing property is enhanced.

[0013] 2. The mounting seat and the bolt are used in cooperation, the electric telescopic rod is fixed, the electric telescopic rod is convenient to disassemble, the supporting legs are arranged, the box body is supported, the stability of the box body during placement is improved, the positioning holes and the positioning columns are used in cooperation, the box body and the top plate are positioned, and the top plate is not prone to shaking during placement.

[0014] Other features and advantages of the present application will be described in the following description, and some will become apparent from the description, or will be understood from the practice of the present application. The purpose and other advantages of the present application can be realized and obtained by the structures indicated in the specification, claims and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0016] Figure 1 The structural body diagram according to the embodiment of the present application is shown.

[0017] Figure 2 The structural schematic diagram of the box according to the embodiment of the present application is shown.

[0018] Figure 3 The partial structural schematic diagram according to the embodiment of the present application is shown.

[0019] Figure 4 The structural bottom view of the top plate according to the embodiment of the present application is shown.

[0020] Figure 5 The partial structural sectional view according to the embodiment of the present application is shown.

[0021] In the figure: 1, box; 2, sleeve; 3, groove; 4, rack; 5, threaded pipe; 6, threaded block; 7, limiting plate; 8, top plate; 9, labyrinth sealing block; 10, rubber ring; 11, first sealing mechanism; 111, cavity; 112, movable plate; 113, first spring; 114, limiting block; 115, sealing gasket; 12, second sealing mechanism; 121, fixed block; 122, electric telescopic rod; 123, first protruding block; 124, guide rod; 125, round block; 126, second protruding block; 127, second spring; 13, mounting seat; 14, supporting leg; 15, positioning hole; 16, positioning column. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] The sealing device of the calcium formate centrifuge provided in the embodiments of the present application comprises a box 1, for example, as shown in the figure. Figures 1-5 ​

[0024] The top of the box 1 is embedded with a sleeve 2, the top of the sleeve 2 is provided with a groove 3, the bottom of the inner cavity of the sleeve 2 is rotatably connected with a placing rack 4, the top of the placing rack 4 is embedded with a threaded tube 5, the inner cavity of the threaded tube 5 is threadedly connected with a threaded block 6, the top of the threaded block 6 is fixedly connected with a limiting plate 7, the top of the box 1 is provided with a top plate 8, the bottom of the top plate 8 is fixedly connected with a labyrinth sealing block 9, the surface of the labyrinth sealing block 9 is sleeved with two rubber rings 10, the inside of the top plate 8 is provided with a first sealing mechanism 11, and the two sides of the box 1 are provided with a second sealing mechanism 12.

[0025] The first sealing mechanism 11 comprises a cavity 111 provided in the inside of the top plate 8, as shown in Figures 1-5

[0026] The inner cavity of the cavity 111 is slidably connected with a movable plate 112, the top of the movable plate 112 is fixedly connected with a first spring 113, one end of the first spring 113 is fixedly connected with the top plate 8, the bottom of the movable plate 112 is fixedly connected with a limiting block 114, one side of the limiting block 114 penetrates through the bottom of the top plate 8 and is fixedly connected with a sealing gasket 115.

[0027] Specifically, when the top plate 8 contacts the box 1, the movable plate 112 is pushed by the first spring 113, so that the limiting block 114 and the sealing gasket 115 at the bottom thereof tightly fit the top of the box 1, forming an additional sealing layer, ensuring the tightness of the sealing, and effectively preventing possible leakage problems in the centrifugation process.

[0028] The second sealing mechanism 12 comprises a fixed block 121 fixedly connected to the two sides of the box 1, as shown in Figures 1-5

[0029] The top of the fixed block 121 is fixedly connected with an electric telescopic rod 122, the output end of the electric telescopic rod 122 is drivingly connected with a first protruding block 123, one side of the first protruding block 123 is fixedly connected with the top plate 8, the two sides of the top of the fixed block 121 are slidably connected with guide rods 124, the bottom of the guide rod 124 is fixedly connected with a round block 125, the surface of the guide rod 124 is sleeved with a second spring 127, the two ends of the second spring 127 are fixedly connected with the fixed block 121 and the round block 125 respectively, the top of the guide rod 124 is fixedly connected with a second protruding block 126, one side of the second protruding block 126 is fixedly connected with the top plate 8.

[0030] Specifically, the electric telescopic rod 122 pushes the top plate 8 to move downward through the first protruding block 123, providing additional fastening force, which ensures the tight contact between the top plate 8 and the box 1, thereby enhancing the sealing performance. ​​

[0031] The surface of the electric telescopic rod 122 is sleeved with a mounting seat 13, as shown in the figure. Figures 1-5

[0032] One side of the mounting seat 13 is threadedly connected with a bolt, the electric telescopic rod 122 is detachably connected with the box body 1 through the bolt, four supporting legs 14 are fixedly connected to the bottom of the box body 1, the four supporting legs 14 are symmetrically arranged, positioning holes 15 are formed in the four corners of the top of the box body 1, positioning columns 16 matched with the positioning holes 15 are fixedly connected to the four corners of the bottom of the top plate 8, the second spring 127 and the circular block 125 form a telescopic structure, and the maximum moving distance of the circular block 125 is equal to the deformation amount of the second spring 127.

[0033] Specifically, the mounting seat 13 and the bolt are used in cooperation to fix the electric telescopic rod 122, and the electric telescopic rod 122 is convenient for the user to disassemble, the supporting legs 14 are arranged to support the box body 1, thereby improving the stability of the box body 1 when the box body 1 is placed, and the positioning holes 15 and the positioning columns 16 are used in cooperation to position the box body 1 and the top plate 8, so that the top plate 8 is not easy to shake when the top plate 8 is placed.

[0034] The working principle of the sealing device of the calcium formate centrifuge is as follows:

[0035] When the device is in use, the threaded pipe 5 is threadedly connected with the threaded block 6, the height of the limiting plate 7 fixedly connected with the threaded block 6 is allowed to be adjusted by rotation, so that the object in the placing rack 4 is limited.

[0036] Further, the top plate 8 provides a preliminary sealing effect through the labyrinth sealing block 9 and the rubber ring 10 on the surface of the labyrinth sealing block 9, and the labyrinth sealing structure reduces leakage through a complex path.

[0037] Further, when the top plate 8 contacts the box body 1, the movable plate 112 in the first sealing mechanism 11 is pushed by the first spring 113, so that the limiting block 114 and the sealing gasket 115 at the bottom of the limiting block 114 are tightly attached to the top of the box body 1, an additional sealing layer is formed, the sealing property is improved, and the movable plate 112 in sliding connection allows a certain elastic adjustment space when the top plate 8 is installed or disassembled.

[0038] ​Further, the electric telescopic rod 122 pushes the top plate 8 downward through the first protrusion 123 to provide additional fastening force, ensuring the sealing between the top plate 8 and the box 1, the guide rod 124, the second spring 127 and the round block 125 constitute an elastic support system, allowing the top plate 8 to have a certain floating range during installation, while the second spring 127 provides additional support and buffering when the top plate 8 is under pressure, and the second protrusion 126 is fixedly connected with the top plate 8 to ensure the synchronous movement of the guide rod 124 and the top plate 8.

[0039] Further, through the combined action of the labyrinth sealing block 9, the rubber ring 10, the sealing gasket 115 of the first sealing mechanism 11 and the electric telescopic rod 122 and the guide rod 124 system of the second sealing mechanism 12, the device realizes multi-layer and multi-mode sealing effect, effectively preventing possible leakage problems during centrifugation.

[0040] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A sealing device for a calcium formate centrifuge comprising a casing (1), characterised in that: The top of the box (1) is embedded with a sleeve (2), the top of the sleeve (2) is provided with a groove (3), the bottom of the inner cavity of the sleeve (2) is rotatably connected with a placing rack (4), the top of the placing rack (4) is embedded with a threaded tube (5), the inner cavity of the threaded tube (5) is threadedly connected with a threaded block (6), the top of the threaded block (6) is fixedly connected with a limiting plate (7), the top of the box (1) is provided with a top plate (8), the bottom of the top plate (8) is fixedly connected with a labyrinth sealing block (9), the surface of the labyrinth sealing block (9) is sleeved with two rubber rings (10), the inside of the top plate (8) is provided with a first sealing mechanism (11), and the two sides of the box (1) are provided with a second sealing mechanism (12).

2. A seal assembly for a calcium formate centrifuge as defined in claim 1, wherein: The first sealing mechanism (11) comprises a cavity (111) formed in the inside of the top plate (8), the inner cavity of the cavity (111) is slidably connected with a movable plate (112), the top of the movable plate (112) is fixedly connected with a first spring (113), one end of the first spring (113) is fixedly connected with the top plate (8), and the bottom of the movable plate (112) is fixedly connected with a limiting block (114), one side of the limiting block (114) penetrates through the bottom of the top plate (8) and is fixedly connected with a sealing gasket (115).

3. A seal assembly for a calcium formate centrifuge as defined in claim 1, wherein: The second sealing mechanism (12) comprises a fixed block (121) fixedly connected to the two sides of the box (1), the top of the fixed block (121) is fixedly connected with an electric telescopic rod (122), the output end of the electric telescopic rod (122) is drivingly connected with a first protruding block (123), one side of the first protruding block (123) is fixedly connected with the top plate (8), the two sides of the top of the fixed block (121) are slidably connected with guide rods (124), the bottom of the guide rod (124) is fixedly connected with a circular block (125), the surface of the guide rod (124) is sleeved with a second spring (127), the two ends of the second spring (127) are fixedly connected with the fixed block (121) and the circular block (125), respectively, the top of the guide rod (124) is fixedly connected with a second protruding block (126), and one side of the second protruding block (126) is fixedly connected with the top plate (8).

4. A seal assembly for a calcium formate centrifuge as defined in claim 3, wherein: The surface of the electric telescopic rod (122) is sleeved with a mounting seat (13), one side of the mounting seat (13) is threadedly connected with a bolt, and the electric telescopic rod (122) and the box (1) are detachably connected through the bolt.

5. A seal assembly for a calcium formate centrifuge as defined in claim 1, wherein: The bottom of the box (1) is fixedly connected with supporting legs (14) at four corners, and the four supporting legs (14) are symmetrically arranged.

6. A seal assembly for a calcium formate centrifuge as defined in claim 1, wherein: The top of the box (1) is provided with positioning holes (15) at four corners, and the bottom of the top plate (8) is fixedly connected with positioning columns (16) matched with the positioning holes (15).

7. A seal assembly for a calcium formate centrifuge as defined in claim 3, wherein: The second spring (127) and the circular block (125) form a telescopic structure, and the maximum movement distance of the circular block (125) is equal to the deformation amount of the second spring (127).

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