A horizontal spiral unloading sedimentation centrifuge

Abstract

The present invention discloses a horizontal spiral unloading sedimentation centrifuge, comprising an assembly cover, a concentrically arranged drum and a rotating barrel, and spiral conveying blades. The drum and the rotating barrel adopt a cylindrical and conical combined structure, and the spiral conveying blades are fixedly connected to the outside of the rotating barrel. A liquid phase outlet and a solid phase outlet are respectively provided at both ends of the assembly cover, and a slag discharge port connected to the solid phase outlet is provided on the side wall of the drum. The feed pipe extends into the interior of the rotating barrel to connect to the distribution assembly, which is composed of a double turntable and a radial distribution plate to achieve uniform distribution of materials. The overflow assembly is arranged at the large end of the rotating barrel, and an adjustable overflow port is formed by hydraulic adjustment to optimize the separation effect. The drive assembly adopts a differential gear and redundant motor design to ensure stable operation of the drum at high speed and the rotating barrel at low speed. The present invention solves the problems of low separation accuracy and poor operating stability of traditional centrifuges, and is suitable for the solid-liquid separation needs in the fields of chemical industry, environmental protection, etc.

Description

Technical Field

[0001] The invention relates to the technical field of horizontal screw centrifuges, in particular to a horizontal spiral unloading sedimentation centrifuge. Background Art

[0002] The horizontal spiral discharge decanter centrifuge is a solid-liquid separation device widely used in the chemical, environmental protection, food, and pharmaceutical industries. It uses centrifugal force to efficiently separate the solid and liquid phases in a suspension. Traditional decanter centrifuges typically consist of core components such as a drum, a screw conveyor, and a drive system. During operation, the drum rotates at high speed to generate centrifugal force, causing solid particles to settle to the inner wall of the drum. The screw conveyor pushes the solid particles to the discharge port for discharge, while the clarified liquid phase is discharged through the overflow port. However, in actual applications, the existing technology still has the following problems:

[0003] 1. Insufficient overflow adjustment accuracy: The overflow port of a traditional centrifuge is usually a fixed structure or adopts a simple mechanical adjustment method, which makes it difficult to dynamically adjust the liquid layer depth according to material properties (such as solid phase particle size, liquid phase viscosity, etc.).

[0004] 2. Poor distribution uniformity: Before entering the drum, the material must be accelerated and evenly dispersed by a distribution device to avoid localized accumulation or impact on the inner wall of the drum. Existing distribution structures, mostly static guide tubes or simple rotating blades, are unable to adapt to the uniform distribution requirements of high-concentration, high-viscosity materials, resulting in reduced centrifugal separation efficiency and even causing equipment vibration.

[0005] 3. Power transmission complexity and reliability issues: Screw-discharging centrifuges require differential speed operation between the drum and the screw conveyor (typically high speed for the drum and low speed for the screw). Traditional drive systems often use planetary gearboxes or dual motors, which are complex and require high maintenance. Furthermore, failure of a single drive source can cause the entire machine to shut down, and the lack of power redundancy compromises the stability of continuous production.

[0006] In summary, the existing horizontal spiral unloading sedimentation centrifuge still has significant deficiencies in overflow adjustment accuracy, material distribution uniformity, drive reliability, etc., and an improvement solution with compact structure, flexible adjustment and stable operation is urgently needed to meet the requirements of high separation efficiency, low energy consumption and long-cycle operation. Summary of the Invention

[0007] In response to the above-mentioned shortcomings in the prior art, the purpose of the present invention is to provide a horizontal spiral unloading sedimentation centrifuge, which solves the pain points of traditional centrifuges in separation accuracy, operating stability and maintenance convenience. It is suitable for high-demand solid-liquid separation scenarios such as chemical, environmental protection, and food, and has significant economic benefits and promotion value.

[0008] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: a horizontal spiral unloading sedimentation centrifuge, comprising an assembly cover, a drum, a rotating drum, and a spiral conveying blade distributed in a horizontal order from the outside to the inside, the drum and the rotating drum are rotatably installed in the assembly cover and maintained in a concentric arrangement, the same end of the drum and the rotating drum is set as a hollow structure composed of a cylinder and a cone, the spiral conveying blade is fixed to the outer periphery of the rotating drum and arranged on the inner side of the drum, the two ends of the assembly cover are respectively provided with a liquid phase outlet and a solid phase outlet, the solid phase outlet is arranged on the side close to the small end of the drum and the rotating drum, and a slag discharge port connected to the solid phase outlet is opened on the side wall of the drum.

[0009] It also includes a feed pipe and a distribution assembly. The feed pipe is fixedly mounted on the assembly cover and extends into the inner side of the drum from the large end of the drum. The distribution assembly includes two groups of coaxially arranged turntables and a distribution plate fixed between the two groups of turntables and distributed parallel to the radial direction. The turntable is rotatably mounted to the middle section of the drum. The feed pipe and the turntable remain coaxial and rotatably connected. The distribution plate includes multiple groups distributed in a ring array. A feed port arranged between the two groups of turntables is opened on the side wall of the drum.

[0010] The invention also includes an overflow component, which is assembled to the large end of the drum. The overflow component and the outer wall of the drum form an overflow port capable of adjusting the gap.

[0011] It also includes a driving assembly, which maintains power connection with the drum, the rotating cylinder, and the cloth assembly.

[0012] On the basis of the above technical solutions, in order to ensure that the overflow assembly can be stably assembled at the large end of the drum and to achieve effective adjustment of the overflow port, the following technical solutions are provided:

[0013] The overflow assembly includes a fixed disk, a rotating disk, a driving sleeve, and a triangular baffle. The fixed disk and the rotating disk are both arranged as an annular structure. The fixed disk is fixedly installed to the large end of the rotating drum. The rotating disk is fixedly connected to the driving sleeve and rotatably installed in the assembly cover. The driving sleeve is arranged on the periphery of the rotating drum. The triangular baffle is arranged between the fixed disk and the rotating disk. The triangular baffle includes a plurality of groups distributed in an annular array and kept in a close fit. The two sides of each group of triangular baffles are respectively fixed with a pin shaft A and a slide seat. The fixed disk is provided with a plurality of groups of tangentially distributed slide grooves A, and the slide grooves A maintain a sliding combination with the slide seat. The rotating disk is provided with a plurality of radially distributed slide grooves B, and the pin shaft A is combined with the slide groove B in a rotating and sliding manner.

[0014] On the basis of the above technical solution, after the overflow assembly completes the adjustment of the overflow port size, it can ensure that the overflow assembly runs synchronously with the drum, avoiding the interference between the adjustment of the overflow assembly and the synchronous rotation with the drum. The following technical solution is provided for this purpose:

[0015] The overflow assembly also includes an outer acting sleeve, an inner acting sleeve, and a hydraulic telescopic cylinder. The outer acting sleeve is slidably installed in the assembly cover and slides axially. The inner acting sleeve is rotatably installed on the inner side of the outer acting sleeve and is arranged on the periphery of the drive sleeve. The hydraulic telescopic cylinder includes multiple groups fixedly installed on the outer side of the assembly cover and distributed axially. The movable end of each group of the hydraulic telescopic cylinders is fixedly connected to the outer acting sleeve. The outer wall of the drive sleeve is fixedly connected to multiple groups of pins B distributed in a ring array. The inner wall of the inner acting sleeve is provided with an arc-shaped sliding groove that maintains a sliding combination with the pins B.

[0016] On the basis of the above technical solution, in order to ensure that the outer sleeve can slide stably in the axial direction in the assembly cover and that the hydraulic telescopic cylinder provided on the outside of the assembly cover can be connected and assembled with the outer sleeve, the following technical solution is provided:

[0017] The outer action sleeve is fixedly connected to a plurality of pin seats distributed in a circular array, the inner wall of the assembly cover is provided with a slide groove C which maintains a sliding combination with the pin seats, the outer wall of the outer action sleeve is fixedly connected to a plurality of ear seats extending to the outside of the assembly cover, and the movable end of the hydraulic telescopic cylinder is fixedly connected to the ear seat.

[0018] On the basis of the above technical solution, in order to ensure that the solid phase material in the drum can be directly discharged to the outside of the assembly cover through the solid phase outlet after being discharged from the slag discharge port, the following technical solution is provided:

[0019] The small end of the drum is rotatably mounted to the end of the assembly cover, a sealing ring is fixed in the assembly cover, the small end of the drum is rotatably connected to the sealing ring, and the slag discharge port and the solid phase outlet are both arranged on the outside of the sealing ring.

[0020] On the basis of the above technical solution, in order to ensure that the feed pipe can be stably installed on the assembly cover, the drum and the cloth assembly can be stably installed, and that they can effectively receive the power provided by the drive assembly arranged outside the assembly cover, the following technical solution is provided:

[0021] A connecting bracket is fixedly connected to the feeding pipe, and the connecting bracket is fixedly mounted to the outer wall of the assembly cover. The small end of the rotating drum is fixedly connected to a transmission seat A, and the transmission seat A is rotatably mounted to the end of the assembly cover. The small end of the rotating drum is fixedly connected to a transmission seat B, and the transmission seat B is rotatably mounted to the axis of the transmission seat A. A transmission shaft is fixedly connected to the axis of one group of the turntables, and the transmission shaft maintains a rotational connection with the transmission seat A. The transmission seat A, transmission seat B, and transmission shaft all extend to the outside of the assembly cover.

[0022] On the basis of the above technical solutions, in order to ensure that the driving assembly can drive the drum, the rotating drum, and the fabric assembly to operate stably at a specific operating speed, the following technical solutions are provided:

[0023] The drive assembly includes a mounting cover and a reduction gearbox. The mounting cover is fixedly mounted to the end of the assembly cover. The transmission seat A and the transmission seat B are both arranged in the mounting cover. The transmission shaft is arranged through the mounting cover and is rotatably connected to the mounting cover. The transmission seat A, the transmission seat B and the transmission shaft are respectively fixed with the transmission bevel gear A, the transmission bevel gear B and the transmission bevel gear C. The transmission bevel gear A and the transmission bevel gear C are symmetrically arranged. A plurality of groups of reversing bevel gears distributed in a ring array are rotatably mounted on the mounting cover. The reversing bevel gears are meshed with the transmission bevel gear A and the transmission bevel gear B. The transmission shaft is also fixed with the driving bevel gear A. The input end of the reduction gearbox is fixed with the driving bevel gear D that is meshed with the driving bevel gear A, and the output end of the reduction gearbox is fixed with the driving bevel gear B that is meshed with the driving bevel gear B.

[0024] On the basis of the above technical solutions, in order to enable the drive assembly to drive the transmission shaft to operate stably and provide power redundancy to ensure the continuous operation of the equipment, the following technical solutions are provided:

[0025] The drive assembly also includes a drive motor, a redundant motor and two groups of ratchet mechanisms arranged in the same direction. The drive motor and the redundant motor are respectively connected to one group of the ratchet mechanisms. A transmission spur gear is fixed to the transmission shaft. Both groups of the ratchet mechanisms are equipped with drive spur gears that are meshed with the transmission spur gears.

[0026] On the basis of the above technical solutions, in order to ensure that the ratchet mechanism can achieve a stable combination with the driving spur gear, redundant motor, and driving motor, the following technical solutions are provided:

[0027] The ratchet mechanism includes an inner ratchet, a mounting shaft, a pawl, and a spring. The driving spur gear is fixed to the periphery of the inner ratchet. The mounting shafts in the two sets of ratchet mechanisms are coaxially fixed to the output shafts of the driving motor and the redundant motor respectively. The pawl is rotatably mounted to the periphery of the mounting shaft and remains engaged with the inner ratchet. The spring is assembled on the mounting shaft and remains in contact with the pawl.

[0028] Beneficial effects of the present invention:

[0029] 1. The overflow port is dynamically adjustable to optimize separation efficiency. The hydraulically driven overflow assembly (fixed disc, rotating disc, triangular baffle, etc.) allows dynamic adjustment of the overflow port size, allowing for flexible adjustment of the liquid depth within the bowl to accommodate varying material characteristics. The overflow assembly ensures that all components rotate synchronously with the bowl during adjustment, preventing mechanical interference at high speeds and improving adjustment stability and lifespan.

[0030] 2. The material distribution uniformity is improved and the equipment vibration is reduced. The material distribution component adopts multiple sets of radial distribution plates and a double turntable structure. The material is fully accelerated and evenly dispersed before entering the drum, avoiding local accumulation or impact on the inner wall of the drum, reducing the risk of equipment vibration, ensuring uniform material distribution, and improving centrifugal separation efficiency. It is especially suitable for the processing of high-concentration and high-viscosity materials.

[0031] 3. The drive system is stable and reliable, with power redundancy. A combination of a reduction gearbox and reversing bevel gears achieves a stable differential speed, with the drum and distribution assembly rotating at high speed and the drum operating at low speed, ensuring efficient slag removal by the spiral conveyor blades. Through a redundant drive solution combining dual motors with a ratchet mechanism, if the main drive motor fails, the backup motor seamlessly takes over power, avoiding downtime and improving the reliability of continuous operation. Power is also transmitted only in one direction to the drive shaft, preventing motor damage from reverse drive and extending equipment life. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the present invention;

[0033] Figure 2 A schematic structural diagram of another perspective of the present invention;

[0034] Figure 3 This is a schematic structural diagram of the assembly cover in the present invention in a cutaway state;

[0035] Figure 4 for Figure 3 Schematic diagram of the structure of the middle assembly cover;

[0036] Figure 5 Schematic diagram of the structure of the overflow component;

[0037] Figure 6 This is a disassembly diagram of the overflow assembly;

[0038] Figure 7 for Figure 6 Structural diagram from another perspective;

[0039] Figure 8 This is a schematic diagram of the structure of the supporting combination of the drum, rotating cylinder, spiral conveying blades, feeding pipes, and material distribution components;

[0040] Figure 9 It is a structural diagram of the drive component;

[0041] Figure 10 It is a structural diagram of some components in the drive assembly;

[0042] Figure 11 This is a schematic diagram of the structure of the drive motor, redundant motor and ratchet mechanism in a disassembled state;

[0043] Figure 12 for Figure 11 Detailed diagram of part A.

[0044] In the figure: 1 assembly cover, 11 liquid phase outlet, 12 solid phase outlet, 13 chute C, 14 assembly ring, 15 through groove, 16 sealing ring, 2 drum, 21 slag outlet, 22 drive seat A, 221 drive bevel gear A, 3 drum, 31 feed port, 32 drive seat B, 321 drive bevel gear B, 4 spiral conveying blade, 5 feed pipe, 51 connecting bracket, 6 material distribution assembly, 61 turntable, 62 material distribution plate, 63 drive shaft, 631 drive bevel gear C, 632 drive bevel gear A, 633 drive spur gear, 7 overflow assembly, 71 fixed plate, 711 chute A, 72 Rotating plate, 721 slide B, 73 drive sleeve, 731 pin B, 74 triangular baffle, 741 slide, 742 pin A, 75 outer action sleeve, 751 pin seat, 752 ear seat, 76 inner action sleeve, 761 arcuate slide, 77 hydraulic telescopic cylinder, 8 drive assembly, 81 mounting cover, 811 reversing bevel gear, 82 reduction gear box, 821 transmission bevel gear D, 822 drive bevel gear B, 831 drive motor, 832 redundant motor, 84 ratchet mechanism, 841 inner ratchet, 842 mounting shaft, 843 pawl, 844 reed, 85 drive spur gear. DETAILED DESCRIPTION

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0046] Example 1

[0047] See also Figure 1-Figure 4 、 Figure 8 A horizontal spiral unloading sedimentation centrifuge includes an assembly cover 1, a drum 2, a rotating drum 3, and a spiral conveying blade 4, which are arranged in a horizontal order from the outside to the inside. The drum 2 and the rotating drum 3 are rotatably installed in the assembly cover 1 and kept concentrically arranged. The same end of the drum 2 and the rotating drum 3 is set to a hollow structure composed of a cylinder and a cone. The spiral conveying blade 4 is fixed to the outer periphery of the rotating drum 3 and arranged on the inner side of the drum 2. A liquid phase outlet 11 and a solid phase outlet 12 are respectively provided at both ends of the assembly cover 1. The solid phase outlet 12 is arranged on the side close to the small end of the drum 2 and the rotating drum 3. A slag discharge port 21 connected to the solid phase outlet 12 is opened on the side wall of the drum 2.

[0048] It also includes a feeding pipe 5 and a distribution assembly 6. The feeding pipe 5 is fixedly mounted on the assembly cover 1 and extends into the inner side of the rotating drum 3 from the large end of the rotating drum 3. The distribution assembly 6 includes two groups of coaxially arranged turntables 61 and a distribution plate 62 fixed between the two groups of turntables 61 and distributed parallel to the radial direction. The turntable 61 is rotatably mounted to the middle section of the rotating drum 3. The feeding pipe 5 and the turntable 61 remain coaxial and rotatably connected. The distribution plate 62 includes multiple groups distributed in a ring array. A feed port 31 arranged between the two groups of turntables 61 is opened on the side wall of the rotating drum 3.

[0049] The drum 2 further includes an overflow assembly 7 , which is assembled to the large end of the drum 2 . The overflow assembly 7 and the outer wall of the drum 3 form an overflow port capable of adjusting the gap.

[0050] It also includes a driving assembly 8, which maintains power connection with the drum 2, the rotating cylinder 3, and the cloth assembly 6.

[0051] The assembly cover 1 and the driving assembly 8 are both fixedly mounted on the mounting frame, and the mounting frame provides stable support, thereby ensuring that each component therein can operate stably according to the set requirements.

[0052] When processing the solid-liquid mixture, it is conveyed to the distribution assembly 6 through the feeding pipe 5 extending to the outside of the assembly cover 1. Under the acceleration of the distribution assembly 6, the material is accelerated and conveyed to the drum 2 through the feed port 31 provided on the drum 3. When the drum 2 is driven by the driving assembly 8 to rotate at high speed, the solid phase material is subjected to a large centrifugal force and will be adsorbed on the inner wall of the drum 2. Then, the driving assembly 8 drives the drum 3 and the spiral conveying blades 4 running at low speed to continuously convey it to the small end of the drum 2, and finally enters the assembly cover 1 through the slag discharge port 21 and is discharged and collected outside through the solid phase outlet 12.

[0053] The liquid phase material, however, will flow along the drum 2 due to the smaller centrifugal force exerted by the drum 2 , and eventually be discharged into the assembly cover 1 through the overflow assembly 7 provided at the large end thereof, and finally be discharged and collected through the liquid phase outlet 11 .

[0054] The overflow component 7 can be adaptively adjusted to achieve the adjustment of the overflow port size. The effective height of the overflow component 7 determines the depth of the liquid layer in the drum 2 (that is, the interface position between the liquid phase and the solid phase), which in turn affects the separation effect.

[0055] Specifically, when the overflow port size is reduced, the liquid layer depth increases, thereby increasing the residence time of the liquid phase in the drum 2, thereby improving its clarity, but resulting in an increase in the moisture content of the solid phase. When the overflow port size is increased, the liquid layer depth decreases, thereby prolonging the drying of the solid phase and making the sediment drier, but the liquid phase may contain trace amounts of solid phase material.

[0056] Example 2

[0057] See also Figure 3 、 Figure 5-Figure 7 In order to ensure that the overflow assembly 7 can be stably assembled at the large end of the drum 2 and to achieve effective adjustment of the overflow port, the following technical solution is provided.

[0058] The overflow assembly 7 includes a fixed disk 71, a rotating disk 72, a driving sleeve 73, and a triangular baffle 74. The fixed disk 71 and the rotating disk 72 are both arranged as an annular structure. The fixed disk 71 is fixedly installed to the large end of the drum 2. The rotating disk 72 is fixedly connected to the driving sleeve 73 and rotatably installed in the assembly cover 1. The driving sleeve 73 is arranged on the periphery of the drum 2. The triangular baffle 74 is arranged between the fixed disk 71 and the rotating disk 72. The triangular baffle 74 includes a plurality of groups distributed in an annular array and kept in a close fit. The two sides of each group of triangular baffles 74 are respectively fixed with a pin shaft A742 and a slide seat 741. The fixed disk 71 is provided with a plurality of groups of tangentially distributed slide grooves A711, and the slide grooves A711 maintain a sliding combination with the slide seat 741. The rotating disk 72 is provided with a plurality of groups of radially distributed slide grooves B721, and the pin shaft A742 is combined with the slide groove B721 in a rotating and sliding manner.

[0059] The fixed disc 71 is removably fixed to the large end of the drum 2, while the rotating disc 72 and drive sleeve 73 are fixedly assembled and mounted to the inner wall of the assembly cover 1 in a relatively rotatable manner. The hollow structure ensures that the drum 3 can pass through normally and form an overflow port. To facilitate the installation of the overflow assembly 7 and the drums 2 and 3, the assembly cover 1 can be configured as a two-section structure, with the rotating disc 72 and drive sleeve 73 assembled to the interface of the two sections of the assembly cover 1.

[0060] The rotating disk 72 can also separate the assembly cover 1 so that the liquid phase material entering the assembly cover 1 can be directly discharged through the liquid phase outlet 11.

[0061] When the driving sleeve 73 and the rotating disk 72 are controlled to rotate, the sliding groove B721 provided thereon will exert a force on the pin shaft A742, thereby controlling each group of triangular baffles 74 to slide along the corresponding sliding groove A711, so as to achieve effective adjustment of the size of the overflow port formed.

[0062] When the overflow assembly 7 completes the adjustment of the overflow port size, it can ensure that the overflow assembly 7 runs synchronously with the drum 2, avoiding motion interference between the adjustment of the overflow assembly 7 and the synchronous rotation with the drum 2. The following technical solution is provided for this purpose.

[0063] The overflow assembly 7 also includes an outer acting sleeve 75, an inner acting sleeve 76, and a hydraulic telescopic cylinder 77. The outer acting sleeve 75 is slidably installed in the assembly cover 1 and slides axially. The inner acting sleeve 76 is rotatably installed to the inner side of the outer acting sleeve 75 and is arranged on the periphery of the drive sleeve 73. The hydraulic telescopic cylinder 77 includes multiple groups fixedly installed to the outer side of the assembly cover 1 and distributed axially. The movable ends of each group of hydraulic telescopic cylinders 77 are fixedly connected to the outer acting sleeve 75. The outer wall of the drive sleeve 73 is fixedly connected to multiple groups of pins B731 distributed in a ring array. The inner wall of the inner acting sleeve 76 is provided with an arc-shaped slide groove 761 that maintains a sliding combination with the pin B731.

[0064] The inner acting sleeve 76 and the outer acting sleeve 75 maintain a rotating combination. When the fixed plate 71, the rotating plate 72, the driving sleeve 73 and the triangular baffle 74 rotate synchronously with the drum 2, the inner acting sleeve 76 can be driven to rotate synchronously, avoiding spatial motion interference with the axially moving outer acting sleeve 75 and the hydraulic telescopic cylinder 77.

[0065] By controlling the synchronous telescopic movement of each group of hydraulic telescopic cylinders 77 and driving the outer action sleeve 75 and the inner action sleeve 76 to move axially, the driving sleeve 73 and the rotating disk 72 can be driven to rotate relative to the drum 2 with the help of the cooperation between the arc-shaped slide groove 761 and the pin shaft B731, thereby realizing the position adjustment of each group of triangular baffles 74.

[0066] In order to ensure that the outer action sleeve 75 can slide stably in the axial direction in the assembly cover 1 and to ensure that the hydraulic telescopic cylinder 77 arranged outside the assembly cover 1 can be connected and combined with the outer action sleeve 75, the following technical solution is provided.

[0067] The outer action sleeve 75 is fixedly connected to a plurality of pin seats 751 distributed in a circular array. The inner wall of the assembly cover 1 is provided with a slide groove C13 that maintains a sliding combination with the pin seats 751. The outer wall of the outer action sleeve 75 is fixedly connected to a plurality of ear seats 752 extending to the outside of the assembly cover 1. The movable end of the hydraulic telescopic cylinder 77 is fixedly connected to the ear seat 752.

[0068] An assembly ring 14 is also fixed to the outside of the assembly cover 1 so that the fixed end of the hydraulic telescopic cylinder 77 can be stably assembled on the assembly ring 14. A plurality of axially distributed through grooves 15 are also provided on the side wall of the assembly cover 1 so that the ear seat 752 can pass through the through grooves 15 and extend to the outside of the assembly cover 1.

[0069] Example 3

[0070] See also Figure 3-Figure 4 、 Figure 8 In order to ensure that the solid phase material in the drum 2 can be directly discharged to the outside of the assembly cover 1 through the solid phase outlet 12 after being discharged from the slag discharge port 21, the following technical solution is provided.

[0071] The small end of the drum 2 is rotatably mounted to the end of the assembly cover 1 , in which a sealing gasket 16 is fixed. The small end of the drum 2 is rotatably connected to the sealing gasket 16 , and the slag discharge port 21 and the solid phase outlet 12 are both arranged on the outside of the sealing gasket 16 .

[0072] The sealing ring 16 can maintain a sealed fit with the inner drum 2 and ensure that the drum 2 can rotate normally. The solid phase material entering the assembly cover 1 from the slag discharge port 21 is blocked by the sealing ring 16 and can be directly discharged through the solid phase outlet 12 below.

[0073] In order to ensure that the feed pipe 5 can be stably installed on the assembly cover 1, ensure that the drum 3 and the cloth assembly 6 can be stably installed, and enable them to effectively receive the power provided by the drive assembly 8 arranged outside the assembly cover 1, the following technical solution is provided.

[0074] A connecting bracket 51 is fixedly connected to the feeding pipe 5, and the connecting bracket 51 is fixedly mounted to the outer wall of the assembly cover 1. The small end of the rotating drum 2 is fixedly connected to the transmission seat A22, and the transmission seat A22 is rotatably mounted to the end of the assembly cover 1. The small end of the rotating drum 3 is fixedly connected to the transmission seat B32, and the transmission seat B32 is rotatably mounted to the axis of the transmission seat A22. A transmission shaft 63 is fixedly connected to the axis of one group of turntables 61, and the transmission shaft 63 maintains a rotational connection with the transmission seat A22. The transmission seat A22, the transmission seat B32, and the transmission shaft 63 all extend to the outside of the assembly cover 1.

[0075] The arrangement of the connecting bracket 51 ensures that the feed tube 5 is securely mounted on the assembly cover 1 and prevents spatial motion interference with the drum 3. The arrangement of the transmission seat A22, transmission seat B32, and transmission shaft 63 effectively receives the power provided by the drive assembly 8 and drives the drum 2, drum 3, and fabric assembly 6 to operate stably.

[0076] Example 4

[0077] See also Figure 1-Figure 2 、 Figures 8-11In order to ensure that the driving assembly 8 can drive the drum 2, the rotating cylinder 3, and the cloth assembly 6 to operate stably at a specific operating speed, the following technical solutions are provided.

[0078] The drive assembly 8 includes a mounting cover 81 and a reduction gear box 82. The mounting cover 81 is fixedly mounted to the end of the assembly cover 1. The transmission seat A22 and the transmission seat B32 are both arranged in the mounting cover 81. The transmission shaft 63 is arranged through the mounting cover 81 and is rotatably connected to the mounting cover 81. The transmission seat A22, the transmission seat B32 and the transmission shaft 63 are respectively fixed with a transmission bevel gear A221, a transmission bevel gear B321 and a transmission bevel gear C631. The transmission bevel gear A221 and the transmission bevel gear C631 are kept in contact with each other. Symmetrically arranged, multiple groups of reversing bevel gears 811 distributed in a ring array are rotatably installed on the mounting cover 81. The reversing bevel gears 811 are meshed with the transmission bevel gear A221 and the transmission bevel gear B321. A driving bevel gear A632 is also fixedly connected to the transmission shaft 63. The input end of the reduction gear box 82 is fixedly connected to the transmission bevel gear D821 which is meshed with the driving bevel gear A632. The output end of the reduction gear box 82 is fixedly connected to the driving bevel gear B822 which is meshed with the transmission bevel gear B321.

[0079] When the transmission shaft 63 is running, the cloth assembly 6 and the drum 2 are driven by the combination of the transmission bevel gear A221, the transmission bevel gear C631 and the reversing bevel gear 811 to always ensure constant speed reverse operation. At the same time, the power can be transmitted to the reduction gear box 82 through the combination of the driving bevel gear A632 and the transmission bevel gear D821. After the power is decelerated and torque-increased, the drum 3 is driven to operate at a low speed through the combination of the driving bevel gear B822 and the transmission bevel gear B321.

[0080] The provision of the mounting cover 81 can ensure that the driving bevel gear B822 and the reversing bevel gear 811 are stably mounted in a relative rotational posture.

[0081] In order to enable the drive assembly 8 to drive the transmission shaft 63 to operate stably and provide power redundancy to ensure the continuous operation of the equipment, the following technical solutions are provided.

[0082] The drive assembly 8 also includes a drive motor 831, a redundant motor 832 and two sets of ratchet mechanisms 84 arranged in the same direction. The drive motor 831 and the redundant motor 832 are respectively connected to a set of ratchet mechanisms 84. A transmission spur gear 633 is fixed to the transmission shaft 63. Both sets of ratchet mechanisms 84 are equipped with a drive spur gear 85 that is meshed with the transmission spur gear 633.

[0083] When the driving motor 831 is running, it can drive the corresponding ratchet mechanism 84 and the assembled driving spur gear 85 to operate stably, and then stably transmit power to the transmission shaft 63 through the transmission spur gear 633. At the same time, the transmission spur gear 633 can also drive the ratchet mechanism 84 and the corresponding driving spur gear 85 connected to the redundant motor 832 to operate. However, at this time, the ratchet mechanism 84 assembled on the redundant motor 832 is in an idling state and cannot transmit power in reverse to the redundant motor 832, causing damage to the redundant motor 832.

[0084] When the drive motor 831 fails and stops, or the redundant motor 832 is required to share the power output, the one-way transmission characteristics of the two sets of ratchet mechanisms 84 arranged in the same direction can ensure that the power is always stably transmitted to the transmission shaft 63.

[0085] In order to ensure that the ratchet mechanism 84 can achieve a stable combination with the driving spur gear 85 and the redundant motor 832 and the driving motor 831, the following technical solution is provided.

[0086] The ratchet mechanism 84 includes an inner ratchet 841, a mounting shaft 842, a pawl 843, and a spring 844. The driving spur gear 85 is fixed to the periphery of the inner ratchet 841. The mounting shafts 842 in the two sets of ratchet mechanisms 84 are coaxially fixed with the output shafts of the driving motor 831 and the redundant motor 832 respectively. The pawl 843 is rotatably mounted to the periphery of the mounting shaft 842 and remains engaged with the inner ratchet 841. The spring 844 is assembled on the mounting shaft 842 and remains in contact with the pawl 843.

[0087] The arrangement of the spring 844 can provide an outward-spreading force for the pawl 843, thereby keeping the spring 844 always engaged with the ratchet teeth of the corresponding inner ratchet 841. When the drive motor 831 or the redundant motor 832 drives the mounting shaft 842 and the pawl 843 thereon to rotate, the pawl 843 can drive the inner ratchet 841 and the driving spur gear 85 to rotate synchronously. When the other set of driving spur gears 85 transmits power through the transmission spur gear 633 and rotates in the same direction, the power is transmitted from the inner ratchet 841 to the pawl 843 and the mounting shaft 842. At this time, the inner ratchet 841 and the pawl 843 of the ratchet mechanism 84 are in a slipping state and cannot drive the corresponding motor to idle in the opposite direction.

[0088] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0089] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A horizontal spiral unloading sedimentation centrifuge, characterized by: The utility model comprises an assembly cover (1), a rotating drum (2), a rotating cylinder (3), and a spiral conveying blade (4) which are horizontally arranged in sequence from the outside to the inside. The rotating drum (2) and the rotating cylinder (3) are both rotatably installed in the assembly cover (1) and kept in a concentric arrangement. The same end of the rotating drum (2) and the rotating cylinder (3) is set as a hollow structure composed of a cylinder and a cone. The spiral conveying blade (4) is fixed to the outer periphery of the rotating cylinder (3) and arranged on the inner side of the rotating drum (2). The two ends of the assembly cover (1) are respectively provided with a liquid phase outlet (11) and a solid phase outlet (12). The solid phase outlet (12) is arranged on the side close to the small end of the rotating drum (2) and the rotating cylinder (3). A slag discharge port (21) connected to the solid phase outlet (12) is opened on the side wall of the rotating drum (2); It also includes a feeding pipe (5) and a material distribution assembly (6), wherein the feeding pipe (5) is fixedly mounted on the assembly cover (1) and extends from the large end of the rotating drum (3) into the inner side of the rotating drum (3), the material distribution assembly (6) includes two groups of coaxially arranged turntables (61) and a material distribution plate (62) fixedly connected between the two groups of turntables (61) and distributed parallel to the radial direction, the turntable (61) is rotatably mounted to the middle section of the rotating drum (3), the feeding pipe (5) and the turntable (61) are kept coaxial and rotatably connected, the material distribution plate (62) includes a plurality of groups distributed in a ring array, and a feed port (31) arranged between the two groups of turntables (61) is opened on the side wall of the rotating drum (3); It also includes an overflow assembly (7), the overflow assembly (7) is assembled to the large end of the drum (2), and the overflow assembly (7) and the outer wall of the drum (3) form an overflow port capable of adjusting the gap; The overflow assembly (7) comprises a fixed disk (71), a rotating disk (72), a driving sleeve (73), and a triangular baffle (74). The fixed disk (71) and the rotating disk (72) are both arranged in an annular structure. The fixed disk (71) is fixedly mounted to the large end of the rotating drum (2). The rotating disk (72) is fixedly connected to the driving sleeve (73) and is rotatably mounted in the assembly cover (1). The driving sleeve (73) is arranged on the periphery of the rotating drum (2). The triangular baffle (74) is arranged between the fixed disk (71) and the rotating disk (72). 2), the triangular baffles (74) include a plurality of groups distributed in an annular array and kept in close contact, and a pin shaft A (742) and a slide seat (741) are fixed on both sides of each group of triangular baffles (74), and a plurality of groups of tangentially distributed slide grooves A (711) are provided on the fixed disk (71), and the slide grooves A (711) and the slide seat (741) are kept in sliding combination, and a plurality of groups of radially distributed slide grooves B (721) are provided on the rotating disk (72), and the pin shaft A (742) is combined with the slide groove B (721) in a rotating and sliding manner; The overflow assembly (7) further comprises an outer action sleeve (75), an inner action sleeve (76), and a hydraulic telescopic cylinder (77), wherein the outer action sleeve (75) is slidably mounted in the assembly cover (1) and slides axially, the inner action sleeve (76) is rotatably mounted on the inner side of the outer action sleeve (75) and arranged on the periphery of the drive sleeve (73), the hydraulic telescopic cylinder (77) comprises a plurality of groups fixedly mounted on the outer side of the assembly cover (1) and distributed along the axial direction, the movable end of each group of the hydraulic telescopic cylinder (77) is fixedly connected to the outer action sleeve (75), the outer wall of the drive sleeve (73) is fixedly connected to a plurality of groups of pins B (731) distributed in an annular array, and the inner wall of the inner action sleeve (76) is provided with an arc-shaped slide groove (761) which maintains a sliding combination with the pins B (731); It also includes a driving assembly (8), wherein the driving assembly (8) maintains a power connection with the rotating drum (2), the rotating cylinder (3), and the cloth assembly (6).

2. A horizontal spiral discharge sedimentation centrifuge according to claim 1, characterized in that: The outer action sleeve (75) is fixedly connected to a plurality of pin seats (751) distributed in a circular array. The inner wall of the assembly cover (1) is provided with a slide groove C (13) which is in sliding combination with the pin seats (751). The outer wall of the outer action sleeve (75) is fixedly connected to a plurality of ear seats (752) extending to the outside of the assembly cover (1). The movable end of the hydraulic telescopic cylinder (77) is fixedly connected to the ear seat (752).

3. The horizontal spiral discharge decanter centrifuge according to claim 1, characterized in that: The small end of the drum (2) is rotatably mounted to the end of the assembly cover (1), a sealing ring (16) is fixedly connected to the assembly cover (1), the small end of the drum (2) is rotatably connected to the sealing ring (16), and the slag discharge port (21) and the solid phase outlet (12) are both arranged on the outside of the sealing ring (16).

4. The horizontal spiral discharge decanter centrifuge according to claim 1, characterized in that: The feed pipe (5) is fixedly connected to a connecting bracket (51), and the connecting bracket (51) is fixedly mounted to the outer wall of the assembly cover (1). The small end of the rotating drum (2) is fixedly connected to a transmission seat A (22), and the transmission seat A (22) is rotatably mounted to the end of the assembly cover (1). The small end of the rotating drum (3) is fixedly connected to a transmission seat B (32), and the transmission seat B (32) is rotatably mounted to the axis of the transmission seat A (22). A transmission shaft (63) is fixedly connected to the axis of one group of the turntables (61), and the transmission shaft (63) is rotatably connected to the transmission seat A (22). The transmission seat A (22), the transmission seat B (32), and the transmission shaft (63) all extend to the outside of the assembly cover (1).

5. The horizontal spiral discharge decanter centrifuge according to claim 4, characterized in that: The driving assembly (8) includes a mounting cover (81) and a reduction gear box (82). The mounting cover (81) is fixedly mounted to the end of the assembly cover (1). The transmission seat A (22) and the transmission seat B (32) are both arranged in the mounting cover (81). The transmission shaft (63) passes through the mounting cover (81) and is rotatably connected to the mounting cover (81). The transmission seat A (22), the transmission seat B (32) and the transmission shaft (63) are respectively fixed with a transmission bevel gear A (221), a transmission bevel gear B (321) and a transmission bevel gear C (631). The transmission bevel gear A (221) and the transmission bevel gear C (631) are respectively fixed to each other. The wheel C (631) is arranged symmetrically. A plurality of groups of reversing bevel gears (811) distributed in a ring array are rotatably mounted on the mounting cover (81). The reversing bevel gears (811) are meshed with the transmission bevel gear A (221) and the transmission bevel gear B (321). The transmission shaft (63) is also fixedly connected with a driving bevel gear A (632). The input end of the reduction gear box (82) is fixedly connected with a transmission bevel gear D (821) meshed with the driving bevel gear A (632). The output end of the reduction gear box (82) is fixedly connected with a driving bevel gear B (822) meshed with the transmission bevel gear B (321).

6. The horizontal spiral discharge decanter centrifuge according to claim 5, characterized in that: The drive assembly (8) further comprises a drive motor (831), a redundant motor (832) and two groups of ratchet mechanisms (84) arranged in the same direction. The drive motor (831) and the redundant motor (832) are respectively connected to one group of the ratchet mechanisms (84) in a power manner. A transmission spur gear (633) is fixedly connected to the transmission shaft (63). Both groups of the ratchet mechanisms (84) are equipped with a drive spur gear (85) that is meshed with the transmission spur gear (633).

7. The horizontal spiral discharge decanter centrifuge according to claim 6, characterized in that: The ratchet mechanism (84) comprises an inner ratchet (841), a mounting shaft (842), a pawl (843), and a leaf spring (844). The driving spur gear (85) is fixed to the periphery of the inner ratchet (841). The mounting shafts (842) in the two sets of ratchet mechanisms (84) are coaxially fixed to the output shafts of the driving motor (831) and the redundant motor (832), respectively. The pawl (843) is rotatably mounted to the periphery of the mounting shaft (842) and is kept in mesh with the inner ratchet (841). The leaf spring (844) is assembled onto the mounting shaft (842) and is kept in contact with the pawl (843).

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