Disc centrifuge disc structure capable of automatically removing slag

Abstract

The invention relates to a disc centrifuge disc structure capable of automatically removing slag, which can drive a disc to move to perform vibration slag removal while a pressure valve is opened to remove slag, and specifically comprises a plurality of connecting parts, a plurality of elastic parts, a plurality of elastic parts and a plurality of elastic parts, each disc is connected with the corresponding connecting part; a clamping groove is inwards formed in the top of the outer wall of the connecting part in the radial direction, and a clamping block is formed between the clamping groove and the top face of the connecting part. The bottom of the inner wall of the connecting part is radially and outwards provided with a slot; the clamping block of the other connecting part is arranged in the slot, and the height of the slot is greater than the thickness of the clamping block; in the process that the disc moves up and down, solid particles deposited on the surface of the disc are subjected to strong vibration impact; the vibration not only can effectively shake off solid particles from the surface of the disc, but also can ensure that the particles slide to a sediment area of the rotary drum along the surface of the disc; the process greatly reduces the residue of solid particles on the surface of the disc, thereby avoiding the further influence of the particles on the performance of the equipment.

Description

Technical Field

[0001] The invention relates to a centrifuge, in particular to a disc structure of a disc-type centrifuge with automatic slag cleaning. Background Art

[0002] The discs in the prior art are arranged at fixed equidistant intervals. During high-speed rotation, solid particles will be deposited on the surface of the discs, especially in the narrow gaps between the discs, resulting in reduced separation efficiency and increased difficulty in equipment maintenance. Even centrifuges with automatic cleaning functions are difficult to completely remove these residues.

[0003] In addition, the existing technology also has the risk of disc blockage. When separating materials with high viscosity or large particle size, the gaps between the discs are easily blocked when the disc centrifuge is used for a long time. As the sediment accumulates, the friction on the surface of the disc increases, which may cause the centrifuge efficiency to decrease, and even cause shutdown in serious cases.

[0004] The existing technology also has the disadvantages of difficult cleaning and high maintenance costs. The deposited particles need to be cleaned regularly, but this process is usually cumbersome and easy to damage the disc. The disc structure is complex and difficult to clean thoroughly. The residue is easy to breed bacteria and affect product quality. This is a serious problem, especially in the food and pharmaceutical industries. Frequent cleaning and replacement of discs will increase maintenance costs.

[0005] In summary, how to remove solid particles between discs and avoid blockage has become an urgent problem that researchers in this field need to solve. Summary of the invention

[0006] The technical problem to be solved by the present invention is: how to remove solid particles between discs to avoid blockage;

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] The present invention discloses a disc structure of a disc centrifuge for automatic slag cleaning, comprising: an upper shell; a lower shell, which is arranged below the upper shell; a pressure valve, which is slidably arranged on the lower shell and is suitable for closing with the bottom opening of the upper shell; a connecting rod, which is vertically arranged at the inner wall of the pressure valve; a feed pipe, which is vertically arranged in the middle of the top opening of the upper shell; a sleeve, which is arranged between the top opening of the upper shell and the feed pipe, wherein a light phase liquid outlet is formed between the sleeve and the feed pipe, and a heavy phase liquid outlet is formed between the sleeve and the top opening of the upper shell; a plurality of connecting parts of annular structures, along which The sleeve axis direction is sequentially arranged at the bottom of the sleeve; and a plurality of discs, each of which is connected to the corresponding connecting part; the connecting part is radially penetrated with a flow window; a card slot is radially opened inwardly at the top of the outer wall of the connecting part, and a card block is formed between the card slot and the top surface of the connecting part; a slot is radially opened outwardly at the bottom of the inner wall of the connecting part; the card block of another connecting part is placed in the slot, and the height of the slot is greater than the thickness of the card block; the slot of the connecting part located at the bottom is connected to the hook body at the top of the connecting rod, and the thickness of the hook body is less than the height of the slot;

[0009] In this scheme, the material enters the chamber formed by the upper shell and the pressure valve through the feed pipe, the sleeve drives the disc to rotate, the light phase liquid is discharged from the light phase liquid outlet, the heavy phase liquid is discharged from the heavy phase liquid outlet, the solid particles are accumulated in the drum sediment area on the side wall of the chamber, and the pressure valve moves downward to achieve rapid slag discharge of solid particles;

[0010] The bottom of the sleeve is connected with a plurality of connecting parts from top to bottom in sequence, and each connecting part is connected with a disc correspondingly, so that a plurality of discs with gaps are formed from top to bottom, and the block of the connecting part is connected with the slot of another connecting part above, so that the connecting parts are connected from top to bottom, and the slot of the bottommost connecting part is connected with the hook body at the top of the connecting rod;

[0011] When the centrifuge is in working state, the pressure valve is in the upper position, the hook body abuts against the upper top surface of the slot, so that the block of each connecting part abuts against the upper top surface of the slot of another connecting part;

[0012] When the centrifuge is in the slag discharge state, the pressure valve is in the lower position, the connecting rod moves downward, driving the hook body downward to contact the lower bottom surface of the slot, and the bottom connection part will move downward due to lack of support until the block contacts the lower bottom surface of the slot of the upper connection part. At this time, the distance between the bottom disc and the upper disc increases, so that the discs are reset after the distance increases from bottom to top.

[0013] During the up and down movement of the disc, the solid particles deposited on the surface of the disc will be subjected to strong vibration impact; this vibration can not only effectively shake off the solid particles from the surface of the disc, but also ensure that these particles slide along the surface of the disc to the sediment area of ​​the drum; this process greatly reduces the residue of solid particles on the surface of the disc, thereby avoiding further impact of these particles on the performance of the equipment; in this way, solid particles can be removed quickly and efficiently, thereby maintaining the efficient operation of the equipment; in this way, the separation efficiency in the system is significantly improved, ensuring that the disc after each slag discharge can perform the next round of work in a cleaner state, thereby improving the stability and effect of the overall operation.

[0014] In order to explain how the topmost disc is connected to the sleeve, the present invention adopts that the topmost disc is integrally arranged with the bottom outer wall of the sleeve; a limiting ring is arranged on the bottom inner wall of the sleeve, and the limiting ring is placed in the clamping groove;

[0015] The limiting ring is located in the slot. When the centrifuge is in working state, the lower surface of the limiting ring contacts the lower bottom surface of the slot; when the centrifuge is in slag discharge state, the upper surface of the limiting ring contacts the upper top surface of the slot.

[0016] In order to illustrate the specific structure of the discs, the present invention adopts the plurality of discs having concentrically arranged neutral holes extending therethrough.

[0017] In order to illustrate the specific structure of the connecting part, the connecting part adopted by the present invention includes: a first step part, a second step part, and a third step part, the outer diameters of which gradually increase from top to bottom; a first outer peripheral wall of the first step part is radially inwardly provided with a card groove, and a card block is formed between the card groove and the top surface of the first step surface; a second inner peripheral wall of the second step part is radially outwardly provided with a slot, and the card block of the other connecting part is placed in the slot, and the height of the slot is greater than the thickness of the card block; a flow window is radially opened at the card groove and the slot; a positioning block is radially provided on the second outer peripheral wall of the second step, and the positioning block matches the positioning groove at the inner ring of the disc; a support block is provided outwardly at the bottom of the third step; when the two connecting parts are matched, the disc is supported on the upper surface of the support block and is pressed by the lower surface of the support block of the other connecting part;

[0018] The disc and the connecting part are sleeved and connected, and the synchronous rotation of the disc connecting the connecting part is achieved through the cooperation of the positioning block and the positioning groove; the upper surface of the support block plays a role in supporting the disc, and the lower surface of the support block plays a role in pressing the disc. The support blocks of the two different connecting parts limit the axial displacement of the disc.

[0019] The card slot is radially opened inwardly from the first outer peripheral wall of the first step portion, and the slot is specifically radially opened outwardly from the second inner peripheral wall of the second step portion; flow windows are radially opened at the card slot and the slot to facilitate the flow of the medium.

[0020] In order to illustrate that the pressure valve only performs lifting movement, the present invention adopts a guide sleeve extending upward from the middle part of the lower shell; the middle part of the pressure valve is provided with a guide hole that is slidably matched with the guide sleeve.

[0021] The cooperation between the guide sleeve and the guide hole enables the pressure valve to perform lifting and lowering movements only relative to the lower shell body. The gap formed by the pressure valve and the lower shell body can allow hydraulic oil to flow into. By passing hydraulic oil into the gap between the pressure valve and the lower shell body, the pressure valve can perform lifting and lowering movements relative to the lower shell body.

[0022] In order to illustrate the connection between the sleeve and the connecting part, the present invention adopts that the upper surface of the connecting part is provided with a bayonet; the inner wall of the sleeve and the inner wall of the connecting part are protrudingly provided with positioning protrusions matching the bayonet;

[0023] In this solution, the positioning protrusion of the sleeve is adapted to the bayonet, and the rotation of the sleeve drives the connecting part to rotate. The bayonet and the positioning protrusion cooperate with each other to achieve synchronous movement of the connecting part, the disc and the sleeve.

[0024] Beneficial effects of the invention: The invention is a disc structure of a disc centrifuge for automatic slag removal, and the invention has the following advantages:

[0025] 1. The conventional discs are fixed at equal intervals, which are prone to particle deposition and blockage. The present invention connects each layer of discs to a connecting part, and two adjacent connecting parts are interlocked. The bottom layer of discs is connected to the pull rod on the pressure valve, so that the discs can move up and down, and finally achieve the purpose of shaking off the solid particles deposited on the surface of the discs;

[0026] 2. The structure operates while the system is discharging slag, without any additional power drive, and its operation is completely dependent on the energy and power of the system's discharging process.

[0027] 3. Structural design of the connecting section:

[0028] The connecting portion comprises a first step portion, a second step portion and a third step portion, and each step portion has a flow window, through which the liquid moving in the disc can pass.

[0029] 4.Combination structure design of disc:

[0030] The structural design of the disc assembly formed by vertically stacking multiple discs, especially the connection between the discs through the connecting parts, ensures that the discs maintain a tight fit when the centrifuge rotates at high speed.

[0031] 5. The linkage mechanism between the pressure valve and the connection part:

[0032] The protective pressure valve is connected to the connecting part through a connecting rod to realize the mechanism of opening and closing linkage control. When the pressure valve is opened or closed, the connecting rod can push or pull the connecting part to change the position of the disc; this structural design ensures the up and down movement of the disc and enables the system to effectively complete the separation and slag discharge process.

[0033] 6. Up and down movement and vibration cleaning mechanism of the disc:

[0034] Protect the cleaning mechanism from the up and down movement and vibration of the disc caused by the opening and closing action of the pressure valve; specifically, the vibration generated by the rapid up and down movement of the disc can effectively shake off the solid particles on the surface of the disc and guide them to the sediment area of ​​the drum, thereby improving the separation efficiency and cleaning performance of the equipment.

[0035] 7. Efficient removal process of solid particles:

[0036] The design of the disc vibrating up and down and the sliding of particles enables solid particles to be removed quickly, reducing the residual particles on the disc surface and ensuring the efficient operation of the equipment after each slag discharge.

[0037] 8. Overall operational stability and separation efficiency of the system:

[0038] Protect the entire system The disc pack, connection, pressure valve and vibration cleaning mechanism work together to maintain stable performance with high separation efficiency. This design improves the overall efficiency of the centrifuge and reduces performance degradation caused by solid particle accumulation.

[0039] 9. Automation of slag discharge process:

[0040] Traditional disc centrifuges may require manual slag discharge, but this invention automates the slag discharge process through automatic control of the pressure valve, greatly improving operational efficiency and convenience.

[0041] 10. Improvement of disc cleaning efficiency:

[0042] The vibration effect of rapid up and down motion can effectively remove solid particles on the surface of the disc, which is cleaner than the traditional static sedimentation method, thereby improving the separation efficiency and stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0044] Figure 1 It is a cross-sectional view of the centrifuge in working condition;

[0045] Figure 2yes Figure 1 A magnified image of point A;

[0046] Figure 3 It is the coordination diagram of the two connecting parts when the centrifuge is in working state;

[0047] Figure 4 yes Figure 3 A magnified view of point B;

[0048] Figure 5 This is the coordination diagram of the two connecting parts when the centrifuge is in the slag discharge state;

[0049] Figure 6 yes Figure 5 Enlarged view of point C;

[0050] Figure 7 is the cross-sectional profile of the connection;

[0051] Figure 8 It is the matching diagram of the two connecting parts;

[0052] Fig. 9 It is an exploded view of the two connecting parts;

[0053] Fig.10 It is a schematic diagram of the structure of the disc;

[0054] Fig.11 This is an integrated picture of the top disc and sleeve.

[0055] Fig.12 It is a cross-sectional view of the centrifuge when it is in the slag discharge state; DETAILED DESCRIPTION

[0056] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0057] like Figure 1-12As shown, the present invention is a disc structure of a disc centrifuge for automatic slag cleaning, which can drive the disc to move for vibration slag cleaning while the pressure valve is opened to discharge slag, including: an upper shell 1; a lower shell 2, which is arranged below the upper shell 1; a pressure valve 3, which is slidably arranged on the lower shell 2 and is suitable for closing with the bottom opening of the upper shell 1; a connecting rod 31, which is vertically arranged on the inner wall of the pressure valve 3; a feed pipe 4, which is vertically arranged in the middle of the top opening of the upper shell 1; a sleeve 5, which is arranged between the top opening of the upper shell 1 and the feed pipe 4, wherein a light phase liquid outlet 6 is formed between the sleeve 5 and the feed pipe 4, and a heavy phase liquid outlet 7 is formed between the sleeve 5 and the top opening of the upper shell 1; a plurality of annular structures are connected. A portion 8 is sequentially arranged at the bottom of the sleeve 5 along the axial direction of the sleeve 5; and a plurality of discs 9, each of which is connected to the corresponding connecting portion 8; a flow window 81 is radially penetrated by the connecting portion 8; a slot 82 is radially inwardly opened at the top of the outer wall of the connecting portion 8, and a block 83 is formed between the slot 82 and the top surface of the connecting portion 8; a slot 84 is radially outwardly opened at the bottom of the inner wall of the connecting portion 8; another block 83 of the connecting portion 8 is placed in the slot 84, and the height of the slot 84 is greater than the thickness of the block 83; the slot 84 of the connecting portion 8 located at the bottom is connected to the hook body 32 at the top of the connecting rod 31, and the thickness of the hook body 32 is less than the height of the slot 84;

[0058] In this scheme, the material enters the chamber formed by the upper shell 1 and the pressure valve 3 through the feed pipe 4, and the sleeve 5 drives the disc 9 to rotate, so that the light phase liquid is discharged from the light phase liquid outlet 6, and the heavy phase liquid is discharged from the heavy phase liquid outlet 7. The solid particles are accumulated in the drum sediment area on the side wall of the chamber, and the pressure valve 3 moves downward to achieve rapid slag discharge of the solid particles.

[0059] The bottom of the sleeve 5 is sequentially connected with a plurality of connecting parts 8 from top to bottom, and each connecting part 8 is correspondingly connected with a disc 9, so that a plurality of discs 9 with gaps are formed from top to bottom, and the block 83 of the connecting part 8 is connected with the slot 84 of another connecting part 8 above, so that the connecting parts 8 are connected from top to bottom, and the slot 84 of the bottommost connecting part is connected with the hook body 32 at the top of the connecting rod 31;

[0060] like Figure 3-4 As shown, when the centrifuge is in working state, the pressure valve 3 is in the upper position, the hook body 32 abuts against the upper top surface of the slot 84, so that the block 83 of each connecting part 8 abuts against the upper top surface of the slot of another connecting part;

[0061] like Figure 5-6As shown, when the centrifuge is in the slag discharge state, the pressure valve is in the lower position, the connecting rod moves downward, driving the hook body downward to contact the lower bottom surface of the slot, and the bottommost connecting part will move downward due to lack of support until the block contacts the lower bottom surface of the slot 84 of the upper connecting part. At this time, the distance between the bottommost disc 9 and the upper disc 9 increases, so that the discs 9 are reset after the distance increases from bottom to top;

[0062] During the up and down movement of the disc 9, the solid particles deposited on the surface of the disc 8 will be subjected to strong vibration impact; this vibration can not only effectively shake off the solid particles from the disc surface, but also ensure that these particles slide along the disc surface to the drum sediment area; this process greatly reduces the residue of solid particles on the disc surface, thereby avoiding further impact of these particles on the performance of the equipment; in this way, the solid particles can be removed quickly and efficiently, thereby maintaining the efficient operation of the equipment; in this way, the separation efficiency in the system is significantly improved, ensuring that the disc after each slag discharge can perform the next round of work in a cleaner state, thereby improving the stability and effect of the overall operation.

[0063] like Figure 2 As shown, in order to illustrate how the topmost disc is connected to the sleeve, the present invention adopts that the topmost disc 9 is integrally arranged with the bottom outer wall of the sleeve 5; the bottom inner wall of the sleeve 5 is provided with a limiting ring 51, and the limiting ring 51 is placed in the clamping groove 82;

[0064] The limiting ring is located in the slot. When the centrifuge is in working state, the lower surface of the limiting ring contacts the lower bottom surface of the slot; when the centrifuge is in slag discharge state, the upper surface of the limiting ring contacts the upper top surface of the slot.

[0065] like Fig.10 As shown, in order to illustrate the specific structure of the disc, the present invention adopts the plurality of discs 9 having concentrically arranged neutral holes 91 extending therethrough.

[0066] like Figure 4 , 67, in order to illustrate the specific structure of the connecting portion, the present invention adopts a connecting portion 8 including: a first step portion 810, a second step portion 820, and a third step portion 830 whose outer diameters gradually increase from top to bottom; a first outer peripheral wall 811 of the first step portion 810 is radially inwardly provided with a card groove 82, and a card block 83 is formed between the card groove 82 and the top surface of the first step surface 810; a second inner peripheral wall 821 of the second step portion 820 is radially outwardly provided with a slot 84, and the card block 83 of the other connecting portion is placed in the slot 84, and the card block 83 of the connecting portion is placed in the slot 84. The height of the groove 84 is greater than the thickness of the block 83; a flow window 81 is radially opened at the groove 82 and the slot 84; a positioning block 823 is radially arranged outwardly on the second outer peripheral wall 822 of the second step 820, and the positioning block 823 matches the positioning groove 92 at the inner ring of the disc 9; a support block 831 is arranged outwardly at the bottom of the third step 830; when the two connecting parts 8 are matched, the disc 9 is supported on the upper surface of the support block 831 and is pressed by the lower surface of the support block 831 of the other connecting part 8;

[0067] The disc and the connecting part are sleeved and connected, and the synchronous rotation of the disc connecting the connecting part is achieved through the cooperation of the positioning block and the positioning groove; the upper surface of the support block plays a role in supporting the disc, and the lower surface of the support block plays a role in pressing the disc. The support blocks of the two different connecting parts limit the axial displacement of the disc.

[0068] The card slot is radially opened inwardly from the first outer peripheral wall of the first step portion, and the slot is specifically radially opened outwardly from the second inner peripheral wall of the second step portion; flow windows are radially opened at the card slot and the slot to facilitate the flow of the medium.

[0069] like Figure 1 As shown, in order to illustrate that the pressure valve only performs lifting movement, the present invention adopts a guide sleeve 21 extending upward from the middle of the lower shell 2; the middle of the pressure valve 3 is provided with a guide hole 33 that slides with the guide sleeve 21.

[0070] The cooperation between the guide sleeve and the guide hole enables the pressure valve to perform lifting and lowering movements only relative to the lower shell body. The gap formed by the pressure valve and the lower shell body can allow hydraulic oil to flow into. By passing hydraulic oil into the gap between the pressure valve and the lower shell body, the pressure valve can perform lifting and lowering movements relative to the lower shell body.

[0071] like Figure 8-11 As shown, in order to illustrate the connection between the sleeve and the connecting part, the present invention adopts that the upper surface of the connecting part 8 is provided with a bayonet 85; the inner wall of the sleeve 5 and the inner wall of the connecting part 8 are protrudingly provided with a positioning protrusion 86 matching the bayonet 85;

[0072] In this solution, the positioning protrusion of the sleeve is adapted to the bayonet, and the rotation of the sleeve drives the connecting part to rotate. The bayonet and the positioning protrusion cooperate with each other to achieve synchronous movement of the connecting part, the disc and the sleeve.

[0073] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A disc structure of a disc centrifuge for automatic slag removal, characterized in that: include: Upper shell; A lower housing, which is arranged below the upper housing; A pressure valve, which is slidably arranged on the lower shell and is suitable for closing with the bottom opening of the upper shell; A connecting rod, which is vertically arranged on the inner wall of the pressure valve; A feed pipe, which is vertically arranged in the middle of the top opening of the upper shell; A sleeve, which is arranged between the top opening of the upper shell and the feed pipe, wherein a light phase liquid outlet is formed between the sleeve and the feed pipe, and a heavy phase liquid outlet is formed between the sleeve and the top opening of the upper shell; A plurality of connecting parts of annular structures are sequentially arranged at the bottom of the casing along the axial direction of the casing; and a plurality of discs, each of the discs being connected to a corresponding connecting portion; The connecting portion is provided with a flow window in the radial direction; A clamping groove is radially inwardly provided at the top of the outer wall of the connecting portion, and a clamping block is formed between the clamping groove and the top surface of the connecting portion; A slot is radially opened outward at the bottom of the inner wall of the connecting portion; Another card block of the connecting part is placed in the slot, and the height of the slot is greater than the thickness of the card block; The slot of the connecting part at the bottom is connected to the hook body at the top of the connecting rod, and the thickness of the hook body is smaller than the height of the slot.

2. The disc structure of a disc centrifuge for automatic slag cleaning according to claim 1, characterized in that: The disc at the top is integrally arranged with the bottom outer wall of the sleeve; A limiting ring is arranged on the inner wall of the bottom of the sleeve, and the limiting ring is placed in the clamping groove.

3. The disc structure of a disc centrifuge for automatic slag cleaning according to claim 1, characterized in that: The plurality of discs are provided with concentrically arranged neutral holes.

4. The disc structure of a disc centrifuge for automatic slag cleaning according to claim 1, characterized in that: The connecting portion comprises: A first step portion, a second step portion, and a third step portion whose outer diameters gradually increase from top to bottom; A first outer peripheral wall of the first step portion is provided with a clamping groove radially inwardly, and a clamping block is formed between the clamping groove and the top surface of the first step surface; A slot is radially formed on the second inner peripheral wall of the second step portion, and a clamping block of the other connecting portion is placed in the slot, and the height of the slot is greater than the thickness of the clamping block; A positioning block is provided radially outwardly on the second outer peripheral wall of the second step, and the positioning block matches the positioning groove on the inner ring of the disc; A support block is provided outwardly at the bottom of the third step portion; When the two connecting parts are matched, the disc is supported on the upper surface of the support block and is pressed by the lower surface of the support block of the other connecting part.

5. The disc structure of a disc centrifuge for automatic slag cleaning according to claim 1, characterized in that: A guide sleeve is provided in the middle of the lower shell body extending upward; A guide hole which is slidably matched with the guide sleeve is arranged in the middle of the pressure valve.

6. The disc structure of a disc centrifuge for automatic slag cleaning according to claim 2, characterized in that: The upper surface of the connecting portion is provided with a bayonet; The inner wall of the sleeve and the inner wall of the connecting portion are protrudingly provided with positioning protrusions matching the bayonet.

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