Horizontal spiral discharge sedimentation centrifuge

Abstract

The invention discloses a horizontal spiral discharging sedimentation centrifuge which comprises an assembly cover, a rotary drum, a rotary drum and a spiral conveying blade, wherein the rotary drum and the rotary drum are concentrically arranged. The rotary drum and the rotary drum are of a cylindrical and conical combined structure, and the spiral conveying blade is fixedly connected to the outer side of the rotary drum. A liquid-phase outlet and a solid-phase outlet are respectively formed in two ends of the assembly cover, and a slag discharge port communicated with the solid-phase outlet is formed in the side wall of the rotary drum. The feeding pipe extends into the rotary drum to be connected with the material distribution assembly, the assembly is composed of double rotary discs and a radial material distribution plate, and materials are evenly distributed. The overflow assembly is arranged at the large end of the rotary drum, an adjustable overflow opening is formed through hydraulic adjustment, and the separation effect is optimized. And the driving assembly adopts the design of a differential gear and a redundant motor, so that high-speed and low-speed stable operation of the rotary drum is ensured. The problems that a traditional centrifugal machine is low in separation precision and poor in operation stability are solved, and the solid-liquid separation requirements in the fields of chemical engineering, environmental protection and the like are met.

Description

Technical Field

[0001] The present invention relates to the technical field of scroll centrifuges, and specifically to a horizontal screw discharge sedimentation centrifuge. Background Art

[0002] The horizontal screw discharge sedimentation centrifuge is a solid-liquid separation device widely used in fields such as chemical industry, environmental protection, food, and pharmaceuticals. It achieves efficient separation of solid and liquid phases in a suspension through centrifugal force. Traditional sedimentation centrifuges usually consist of core components such as a drum, a screw conveyor, and a drive system. During operation, the drum rotates at a high speed to generate centrifugal force, causing solid particles to settle on the inner wall of the drum and being pushed to the slag discharge port by the screw conveyor, while the clarified liquid phase is discharged through the overflow port. However, in practical applications, the following problems still exist in the existing technology: 1. Insufficient overflow adjustment accuracy: The overflow ports of traditional centrifuges are usually of a fixed structure or use simple mechanical adjustment methods, making it difficult to dynamically adjust the liquid layer depth according to material properties (such as solid particle size, liquid phase viscosity, etc.).

[0003] 2. Poor cloth uniformity: Before the material enters the drum, it needs to be accelerated and evenly dispersed through a cloth device to avoid local accumulation or impact on the inner wall of the drum. Existing cloth structures are mostly static diversion pipes or simple rotating blades, making it difficult to meet the uniform distribution requirements of high-concentration and high-viscosity materials, resulting in reduced centrifugal separation efficiency and even causing equipment vibration.

[0004] 3. Complexity and reliability issues of power transmission: The scroll discharge centrifuge needs to achieve differential operation between the drum and the screw conveyor (usually the drum rotates at a high speed and the screw rotates at a low speed). Traditional drive systems mostly use planetary gearboxes or dual motors to drive respectively, with complex structures and high maintenance costs. In addition, a single drive source failure may cause the entire machine to stop, lacking a power redundancy design and affecting the stability of continuous production.

[0005] In summary, the existing horizontal screw discharge sedimentation centrifuges still have significant deficiencies in terms of overflow adjustment accuracy, cloth uniformity, and drive reliability. There is an urgent need for an improved solution with a compact structure, flexible adjustment, and stable operation to meet the requirements of high separation efficiency, low energy consumption, and long-term operation. Summary of the Invention

[0006] Aiming at the above-mentioned deficiencies existing in the prior art, the purpose of the present invention is to provide a horizontal screw discharge sedimentation centrifuge, which solves the pain points of traditional centrifuges in terms of separation accuracy, operation stability, and maintenance convenience, and is applicable to high-demand solid-liquid separation scenarios in chemical industry, environmental protection, food, etc., with significant economic benefits and promotion value.

[0007] The technical solution adopted by the present invention to achieve the above object is as follows: a horizontal screw discharge sedimentation centrifuge, which includes an assembly cover, a drum, a rotating cylinder, and a spiral conveyor blade that are horizontally arranged in sequence from outside to inside. The drum and the rotating cylinder are both rotatably installed in the assembly cover and are concentrically arranged. The same end of the drum and the rotating cylinder is provided with a hollow structure combined with a cylinder and a cone. The spiral conveyor blade is fixedly connected to the periphery of the rotating cylinder and is arranged inside the drum. Liquid phase outlets and solid phase outlets are respectively provided at both ends of the assembly cover. The solid phase outlet is arranged on the side close to the small end of the drum and the rotating cylinder. A slag discharge port communicating with the solid phase outlet is opened on the side wall of the drum.

[0008] It further includes a feed pipe and a cloth distributing assembly. The feed pipe is fixedly installed on the assembly cover and extends into the inside of the rotating cylinder from the large end of the rotating cylinder. The cloth distributing assembly includes two coaxially arranged turntables and cloth distributing plates fixedly connected between the two turntables and radially parallelly distributed. The turntables are rotatably installed in the middle section of the rotating cylinder. The feed pipe is coaxially arranged with the turntables and is rotatably connected. The cloth distributing plates include multiple groups arranged in an annular array. A feed port is opened on the side wall of the rotating cylinder and is arranged between the two turntables.

[0009] It further includes an overflow assembly. The overflow assembly is assembled to the large end of the drum. The overflow assembly and the outer wall of the rotating cylinder form an overflow port whose gap can be adjusted.

[0010] It further includes a driving assembly. The driving assembly is in power connection with the drum, the rotating cylinder, and the cloth distributing assembly.

[0011] Based on the above technical solution, in order to ensure that the overflow assembly can be stably assembled at the large end of the drum and effectively adjust the overflow port, the following technical solution is provided:

[0012] The overflow assembly includes a fixed disk, a rotating disk, a driving sleeve, and triangular baffles. The fixed disk and the rotating disk are both arranged in an annular structure. The fixed disk is fixedly installed at the large end of the drum. The rotating disk is fixedly connected to the driving sleeve and is rotatably installed in the assembly cover. The driving sleeve is arranged outside the drum. The triangular baffles are arranged between the fixed disk and the rotating disk. The triangular baffles include multiple groups arranged in an annular array and kept in close contact. Pin shafts A and sliding seats are respectively fixedly connected to both sides of each group of triangular baffles. Multiple groups of tangentially distributed chutes A are opened on the fixed disk. The chutes A and the sliding seats are in sliding combination. Multiple groups of radially distributed chutes B are opened on the rotating disk. The pin shafts A are combined with the chutes B in a rotating and sliding manner.

[0013] Based on the above technical solution, after the overflow assembly completes the adjustment of the overflow port size, it can ensure that the overflow assembly rotates synchronously with the drum, avoiding motion interference between the adjustment of the overflow assembly and the synchronous rotation of the drum. For this, the following technical solution is provided:

[0014] The overflow assembly further 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 inside the outer acting sleeve and is arranged around the drive sleeve. The hydraulic telescopic cylinder includes multiple groups fixedly installed on the outside of the assembly cover and distributed axially. The movable ends of each group of hydraulic telescopic cylinders are fixedly connected to the outer acting sleeve. A plurality of pin shafts B distributed in an annular array are fixedly connected to the outer wall of the drive sleeve, and an arc-shaped chute that maintains a sliding combination with the pin shaft B is provided on the inner wall of the inner acting sleeve.

[0015] Based on the above technical solution, to ensure that the outer acting sleeve can slide stably axially in the assembly cover and ensure that the hydraulic telescopic cylinder provided on the outside of the assembly cover can be connected and combined with the outer acting sleeve, the following technical solution is provided:

[0016] A plurality of pin seats distributed in an annular array are fixedly connected to the outer acting sleeve. A chute C that maintains a sliding combination with the pin seats is provided on the inner wall of the assembly cover. A plurality of ear seats extending to the outside of the assembly cover are fixedly connected to the outer wall of the outer acting sleeve. The movable end of the hydraulic telescopic cylinder is fixedly connected to the ear seat.

[0017] Based on the above technical solution, 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:

[0018] The small end of the drum is rotatably installed at the end of the assembly cover. A sealing gasket ring is fixedly connected in the assembly cover. The small end of the drum is rotatably connected to the sealing gasket ring. The slag discharge port and the solid-phase outlet are both arranged outside the sealing gasket ring.

[0019] Based on the above technical solution, to ensure that the feed pipe can be stably installed on the assembly cover, ensure that the rotating cylinder and the cloth feeding assembly can be stably installed, and enable them to effectively receive the power provided by the drive assembly arranged outside the assembly cover, the following technical solution is provided:

[0020] A connecting bracket is fixedly connected to the feeding pipe, and the connecting bracket is fixedly installed on the outer wall of the assembly cover. A driving seat A is fixedly connected to the small end of the rotating drum, and the driving seat A is rotatably installed at the end of the assembly cover. A driving seat B is fixedly connected to the small end of the rotating cylinder, and the driving seat B is rotatably installed at the axis of the driving seat A. A transmission shaft is fixedly connected to the axis of one group of the turntables, and the transmission shaft is rotatably connected to the driving seat A. The driving seat A, the driving seat B, and the transmission shaft all extend to the outside of the assembly cover.

[0021] Based on the above technical solutions, to ensure that the driving assembly can drive the rotating drum, the rotating cylinder, and the cloth feeding assembly to operate stably at a specific operating speed, the following technical solutions are provided:

[0022] The driving assembly includes a mounting cover and a reduction gearbox. The mounting cover is fixedly installed at the end of the assembly cover. The driving seat A and the driving seat B are both arranged in the mounting cover. The transmission shaft passes through the mounting cover and is rotatably connected to the mounting cover. A driving bevel gear A, a driving bevel gear B, and a driving bevel gear C are respectively fixedly connected to the driving seat A, the driving seat B, and the transmission shaft. The driving bevel gear A and the driving bevel gear C are symmetrically arranged. A plurality of reversing bevel gears are rotatably installed on the mounting cover and are arranged in an annular array. The reversing bevel gears are meshed with the driving bevel gear A and the driving bevel gear B. A driving bevel gear A is also fixedly connected to the transmission shaft. A driving bevel gear D meshed with the driving bevel gear A is fixedly connected to the input end of the reduction gearbox, and a driving bevel gear B meshed with the driving bevel gear B is fixedly connected to the output end of the reduction gearbox.

[0023] Based on the above technical solutions, to enable the driving 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:

[0024] The driving assembly further includes a driving motor, a redundant motor, and two ratchet mechanisms arranged in the same direction. The driving motor and the redundant motor are respectively power-connected to one of the ratchet mechanisms. A transmission spur gear is fixedly connected to the transmission shaft, and driving spur gears meshed with the transmission spur gear are assembled on both ratchet mechanisms.

[0025] Based on the above technical solutions, to ensure that the ratchet mechanism can achieve a stable combination with the driving spur gear, the redundant motor, and the driving motor, the following technical solutions are provided:

[0026] The ratchet mechanism includes an inner ratchet, a mounting shaft, a pawl, and a spring leaf. The driving spur gear is fixed to the periphery of the inner ratchet. The mounting shafts in the two groups 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 in mesh with the inner ratchet. The spring leaf is assembled onto the mounting shaft and remains in contact with the pawl.

[0027] Beneficial effects of the present invention: 1. The overflow port is dynamically adjustable to optimize the separation effect. The overflow port size is dynamically adjusted through the hydraulically driven overflow assembly (fixed disc, rotating disc, triangular baffle, etc.), and the depth of the liquid layer in the drum can be flexibly adjusted to adapt to different material characteristics. The overflow assembly ensures that all components rotate synchronously with the drum during the adjustment process, avoiding mechanical interference under high-speed operation and improving the adjustment stability and life.

[0028] 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 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.

[0029] 3. The drive system is stable and reliable, with power redundancy. It adopts a combination of a reduction gearbox and a reversing bevel gear to achieve a stable differential speed with high-speed rotation of the drum and the material distribution component and low-speed operation of the drum, ensuring efficient slag discharge of the spiral conveyor blades. Through the redundant drive solution combining dual motors and ratchet mechanisms, when the main drive motor fails, the backup motor can seamlessly take over the power to avoid downtime losses, improve the reliability of continuous operation of the equipment, and ensure that the power is only transmitted to the drive shaft in one direction to prevent reverse drive from causing motor damage and extend the life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of another perspective of the present invention; Figure 3 It is a schematic structural diagram of the assembly cover in the present invention in a cut-away state; Figure 4 for Figure 3 A schematic diagram of the structure of the middle assembly cover; Figure 5 is a schematic diagram of the structure of the overflow component; Figure 6 This is a disassembly diagram of the overflow assembly; Figure 7 for Figure 6 A schematic diagram of the structure from another perspective; Figure 8Schematic diagram of the structure assembled by a rotary drum, a rotating cylinder, a spiral conveyor blade, a feeding pipe, and a cloth distributing assembly; Figure 9 Schematic diagram of the structure of the driving assembly; Figure 10 Schematic diagram of the structure of some components in the driving assembly; Figure 11 Schematic diagram of the structure of the driving motor, redundant motor, and ratchet mechanism in the disassembled state; Figure 12 For Figure 11 Detail schematic diagram of part A in

[0031] In the figure: 1 assembly cover, 11 liquid phase outlet, 12 solid phase outlet, 13 chute C, 14 assembly ring, 15 through slot, 16 gasket ring, 2 rotary drum, 21 slag discharge port, 22 drive seat A, 221 drive bevel gear A, 3 rotating cylinder, 31 feed inlet, 32 drive seat B, 321 drive bevel gear B, 4 spiral conveyor blade, 5 feed pipe, 51 connecting bracket, 6 cloth distributing assembly, 61 turntable, 62 cloth distributing plate, 63 transmission shaft, 631 drive bevel gear C, 632 drive bevel gear A, 633 drive spur gear, 7 overflow assembly, 71 fixed disk, 711 chute A, 72 rotating disk, 721 chute B, 73 drive sleeve, 731 pin B, 74 triangular baffle, 741 sliding seat, 742 pin A, 75 outer acting sleeve, 751 pin seat, 752 ear seat, 76 inner acting sleeve, 761 arc chute, 77 hydraulic telescopic cylinder, 8 driving assembly, 81 mounting cover, 811 reversing bevel gear, 82 reduction gearbox, 821 drive 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 implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Embodiment 1

[0034] Please refer to Figures 1-4 、 Figure 8, a horizontal scroll discharge sedimentation centrifuge, including an assembly cover 1, a drum 2, a rotating cylinder 3, and a spiral conveyor blade 4 that are horizontally arranged from outside to inside in sequence. The drum 2 and the rotating cylinder 3 are both rotatably installed in the assembly cover 1 and are concentrically arranged. The same ends of the drum 2 and the rotating cylinder 3 are both provided with a hollow structure combined with a cylinder and a cone. The spiral conveyor blade 4 is fixedly connected to the periphery of the rotating cylinder 3 and is arranged inside the drum 2. Liquid phase outlets 11 and solid phase outlets 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 ends of the drum 2 and the rotating cylinder 3. A slag discharge port 21 communicating with the solid phase outlet 12 is opened on the side wall of the drum 2.

[0035] It also includes a feed pipe 5 and a cloth distribution component 6. The feed pipe 5 is fixedly installed on the assembly cover 1 and extends into the inside of the rotating cylinder 3 from the large end of the rotating cylinder 3. The cloth distribution component 6 includes two groups of coaxially arranged turntables 61 and cloth distribution plates 62 fixedly connected between the two groups of turntables 61 and radially parallel to each other. The turntables 61 are rotatably installed in the middle section of the rotating cylinder 3. The feed pipe 5 is coaxial with the turntables 61 and is rotationally connected. The cloth distribution plates 62 include multiple groups arranged in an annular array. A feed port 31 arranged between the two groups of turntables 61 is opened on the side wall of the rotating cylinder 3.

[0036] It also includes an overflow component 7. The overflow component 7 is assembled to the large end of the drum 2. The overflow component 7 and the outer wall of the rotating cylinder 3 form an overflow port capable of adjusting the gap.

[0037] It also includes a drive component 8. The drive component 8 is in power connection with the drum 2, the rotating cylinder 3, and the cloth distribution component 6.

[0038] The assembly cover 1 and the drive component 8 are both fixedly installed on the installation rack, and the installation rack provides stable support, thereby ensuring that each component therein can operate stably according to the set requirements.

[0039] When processing the solid-liquid mixed material, it is conveyed through the feed pipe 5 extending outside the assembly cover 1 to the cloth distribution component 6. Under the acceleration of the cloth distribution component 6, the material is accelerated and conveyed through the feed port 31 provided on the rotating cylinder 3 into the drum 2. When the drum 2 is driven by the drive component 8 to rotate at a high speed, due to the large centrifugal force received by the solid phase material, it will adsorb on the inner wall of the drum 2. Then, the rotating cylinder 3 and the spiral conveyor blade 4 driven by the drive component 8 to rotate at a low speed continuously convey it to the small end of the drum 2, and finally enter the assembly cover 1 through the slag discharge port 21 and are discharged and collected through the solid phase outlet 12.

[0040] However, due to the relatively small centrifugal force acting on the liquid phase material by the drum 2, it will flow along the drum 2 and finally be discharged into the assembly cover 1 through the overflow component 7 provided at its large end, and finally be discharged and collected through the liquid phase outlet 11.

[0041] The overflow assembly 7 can be adjusted adaptively to adjust the size of the overflow port. The working height of the overflow assembly 7 determines the depth of the liquid layer in the drum 2 (i.e., the position of the liquid-solid interface), thereby affecting the separation effect.

[0042] Specifically, when the size of the overflow port decreases, the depth of the liquid layer will increase, thereby increasing the residence time of the liquid phase in the drum 2 to improve its clarity, but it will cause an increase in the moisture content of the solid phase. When the size of the overflow port increases, the depth of the liquid layer will decrease, thereby prolonging the drying of the solid phase and making the sediment drier, but there may be a small amount of solid material in the liquid phase.

[0043] Embodiment 2

[0044] Please refer to Figure 3 、 Figures 5-7 In order to ensure that the overflow assembly 7 can be stably assembled at the large end of the drum 2 and achieve effective adjustment of the overflow port, the following technical solutions are provided.

[0045] 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 in a ring structure. The fixed disk 71 is fixedly installed at 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 outside the drum 2. The triangular baffle 74 is arranged between the fixed disk 71 and the rotating disk 72. The triangular baffle 74 includes multiple groups arranged in a circular array and kept in close contact. On both sides of each group of triangular baffles 74, a pin shaft A742 and a sliding seat 741 are fixedly connected respectively. Multiple groups of tangentially distributed sliding grooves A711 are opened on the fixed disk 71. The sliding grooves A711 are in sliding combination with the sliding seat 741. Multiple groups of radially distributed sliding grooves B721 are opened on the rotating disk 72. The pin shaft A742 is combined with the sliding grooves B721 in a rotating and sliding manner.

[0046] The fixed disk 71 is fixedly attached to the large end of the drum 2 in a detachable manner, while the rotating disk 72 is fixedly combined with the driving sleeve 73 and rotatably installed on the inner wall of the assembly cover 1. The hollow structure can ensure that the rotating cylinder 3 passes through normally and forms an overflow port. To facilitate the installation of the overflow assembly 7, the drum 2, and the rotating cylinder 3, the assembly cover 1 can be provided with two sections of structures, and the rotating disk 72 and the driving sleeve 73 are assembled at the interface of the two sections of the assembly cover 1.

[0047] Moreover, the rotating disk 72 can also divide the assembly cover 1, enabling the liquid phase material entering the assembly cover 1 to be directly discharged through the liquid phase outlet 11.

[0048] When controlling the rotation of the drive sleeve 73 and the rotating disk 72, the chute B721 provided thereon will apply a force to the pin shaft A742, thereby controlling each group of triangular baffles 74 to slide along the corresponding chute A711, so as to effectively adjust the size of the formed overflow port.

[0049] After the overflow assembly 7 completes the adjustment of the overflow port size, it can ensure that the overflow assembly 7 rotates synchronously with the drum 2, avoiding movement interference between the adjustment of the overflow assembly 7 and the synchronous rotation of the drum 2. The following technical solutions are provided for this.

[0050] The overflow assembly 7 further includes an outer action sleeve 75, an inner action sleeve 76, and a hydraulic telescopic cylinder 77. The outer action sleeve 75 is slidably installed in the assembly cover 1 and slides axially. The inner action sleeve 76 is rotatably installed inside the outer action sleeve 75 and is arranged around the drive sleeve 73. The hydraulic telescopic cylinder 77 includes multiple groups fixedly installed on the outside 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 action sleeve 75. Multiple groups of pin shafts B731 distributed in a circular array are fixedly connected to the outer wall of the drive sleeve 73, and an arc-shaped chute 761 that maintains a sliding combination with the pin shaft B731 is provided on the inner wall of the inner action sleeve 76.

[0051] The inner action sleeve 76 and the outer action sleeve 75 maintain a rotational combination. During the synchronous rotation of the fixed disk 71, the rotating disk 72, the drive sleeve 73, and the triangular baffle 74 with the drum 2, it can drive the inner action sleeve 76 to rotate synchronously, avoiding spatial movement interference with the axially moving outer action sleeve 75 and the hydraulic telescopic cylinder 77.

[0052] When 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, with the cooperation of the arc-shaped chute 761 and the pin shaft B731, it can drive the drive sleeve 73 and the rotating disk 72 to rotate relative to the drum 2, thereby realizing the position adjustment of each group of triangular baffles 74.

[0053] To ensure that the outer action sleeve 75 can stably slide axially in the assembly cover 1 and ensure that the hydraulic telescopic cylinder 77 provided on the outside of the assembly cover 1 can be connected to the outer action sleeve 75, the following technical solutions are provided for this.

[0054] Multiple groups of pin seats 751 distributed in a circular array are fixedly connected to the outer action sleeve 75. A chute C13 that maintains a sliding combination with the pin seats 751 is provided on the inner wall of the assembly cover 1. Multiple groups of ear seats 752 extending to the outside of the assembly cover 1 are fixedly connected to the outer wall of the outer action sleeve 75. The movable end of the hydraulic telescopic cylinder 77 is fixedly connected to the ear seat 752.

[0055] On the outer side of the assembly cover 1, an assembly ring 14 is also fixedly connected, so that the fixed end of the hydraulic telescopic cylinder 77 can be stably assembled on the assembly ring 14. On the side wall of the assembly cover 1, a plurality of groups of through grooves 15 distributed axially are also provided, so that the ear seat 752 can extend through the through grooves 15 to the outside of the assembly cover 1.

[0056] Embodiment 3

[0057] Please refer to Figures 3-4 、 Figure 8 , to ensure that the solid-phase material in the rotating 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 solutions are provided.

[0058] The small end of the rotating drum 2 is rotatably installed at the end of the assembly cover 1. A sealing gasket ring 16 is fixedly connected in the assembly cover 1. The small end of the rotating drum 2 is rotatably connected to the sealing gasket ring 16. The slag discharge port 21 and the solid-phase outlet 12 are both arranged outside the sealing gasket ring 16.

[0059] The sealing gasket ring 16 can be in sealed fit with the internal rotating drum 2 and ensure that the rotating 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 gasket ring 16 and can be directly discharged through the lower solid-phase outlet 12.

[0060] To ensure that the feed pipe 5 can be stably installed on the assembly cover 1, ensure that the rotating cylinder 3 and the cloth distributing assembly 6 can be stably installed, and enable them to effectively receive the power provided by the driving assembly 8 arranged outside the assembly cover 1, the following technical solutions are provided.

[0061] A connecting bracket 51 is fixedly connected to the feed pipe 5. The connecting bracket 51 is fixedly installed on the outer wall of the assembly cover 1. A driving seat A22 is fixedly connected to the small end of the rotating drum 2. The driving seat A22 is rotatably installed at the end of the assembly cover 1. A driving seat B32 is fixedly connected to the small end of the rotating cylinder 3. The driving seat B32 is rotatably installed at the axis of the driving seat A22. A transmission shaft 63 is fixedly connected at the axis of one group of turntables 61. The transmission shaft 63 is rotatably connected to the driving seat A22. The driving seat A22, the driving seat B32, and the transmission shaft 63 all extend to the outside of the assembly cover 1.

[0062] The setting of the connecting bracket 51 can ensure the fixed installation of the feed pipe 5 on the assembly cover 1 and avoid spatial movement interference with the rotating cylinder 3. The settings of the driving seat A22, the driving seat B32, and the transmission shaft 63 can effectively receive the power provided by the driving assembly 8 and drive the rotating drum 2, the rotating cylinder 3, and the cloth distributing assembly 6 to operate stably.

[0063] Embodiment 4

[0064] Please refer to Figures 1-2 、 Figures 8-11, To ensure that the drive assembly 8 can drive the drum 2, the rotating cylinder 3, and the cloth feeding assembly 6 to operate stably at a specific operating speed, the following technical solutions are provided.

[0065] The drive assembly 8 includes a mounting cover 81 and a reduction gearbox 82. The mounting cover 81 is fixedly installed at the end of the assembly cover 1. The drive seats A22 and B32 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. A drive bevel gear A221, a drive bevel gear B321, and a drive bevel gear C631 are respectively fixed on the drive seat A22, the drive seat B32, and the transmission shaft 63. The drive bevel gear A221 and the drive bevel gear C631 are symmetrically arranged. A plurality of groups of reversing bevel gears 811 distributed in an annular array are rotatably installed on the mounting cover 81. The reversing bevel gears 811 are meshed with the drive bevel gear A221 and the drive bevel gear B321. A drive bevel gear A632 is also fixed on the transmission shaft 63. A drive bevel gear D821 meshed with the drive bevel gear A632 is fixed at the input end of the reduction gearbox 82. A drive bevel gear B822 meshed with the drive bevel gear B321 is fixed at the output end of the reduction gearbox 82.

[0066] When the transmission shaft 63 is operating, the cloth feeding assembly 6 and the drum 2 are always driven to operate at the same speed in opposite directions through the combination of the drive bevel gear A221, the drive bevel gear C631, and the reversing bevel gears 811. At the same time, the power can be transmitted to the reduction gearbox 82 through the combination of the drive bevel gear A632 and the drive bevel gear D821. After the power is decelerated and torque is increased, the rotating cylinder 3 is driven to operate at a low speed through the combination of the drive bevel gear B822 and the drive bevel gear B321.

[0067] The setting of the mounting cover 81 can ensure the stable installation of the drive bevel gear B822 and the reversing bevel gears 811 in a relatively rotating posture.

[0068] 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.

[0069] The drive assembly 8 further includes 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 power-connected to a group of ratchet mechanisms 84. A drive spur gear 633 is fixed on the transmission shaft 63. Drive spur gears 85 meshed with the drive spur gear 633 are assembled on both groups of ratchet mechanisms 84.

[0070] When the drive motor 831 is running, it can drive the corresponding ratchet mechanism 84 and the assembled drive spur gear 85 to run stably, and then transmit the power to the drive shaft 63 stably through the transmission spur gear 633. At the same time, through the transmission spur gear 633, it can also drive the ratchet mechanism 84 and the corresponding drive spur gear 85 connected to the redundant motor 832 to run. However, at this time, the ratchet mechanism 84 assembled on the redundant motor 832 is in an idling state and cannot reverse the power transmission to the redundant motor 832, resulting in damage to the redundant motor 832.

[0071] When the drive motor 831 fails and stops running or when the redundant motor 832 needs to be connected to jointly bear 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 drive shaft 63.

[0072] To ensure that the ratchet mechanism 84 can be stably combined with the drive spur gear 85, the redundant motor 832, and the drive motor 831, the following technical solutions are provided.

[0073] The ratchet mechanism 84 includes an inner ratchet 841, a mounting shaft 842, a pawl 843, and a reed 844. The drive spur gear 85 is fixedly connected to the periphery of the inner ratchet 841. The mounting shafts 842 in the two sets of ratchet mechanisms 84 are respectively coaxially and fixedly connected to the output shafts of the drive motor 831 and the redundant motor 832. The pawl 843 is rotatably mounted on the periphery of the mounting shaft 842 and meshes with the inner ratchet 841. The reed 844 is assembled on the mounting shaft 842 and abuts against the pawl 843.

[0074] The setting of the reed 844 can provide an outward spreading force for the pawl 843, so that the reed 844 always meshes 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 run, the pawl 843 can drive the inner ratchet 841 and the drive spur gear 85 to run synchronously. When the other set of drive spur gears 85 transmits power through the transmission spur gear 633 and runs 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 this set of ratchet mechanisms 84 are in a slipping state and cannot drive the corresponding motor to idle in reverse.

[0075] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0076] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A horizontal screw discharge sedimentation centrifuge, characterized in that: It includes an assembly cover (1), a rotating drum (2), a rotating cylinder (3), and a spiral conveyor blade (4) that are horizontally arranged in sequence from outside to inside. The rotating drum (2) and the rotating cylinder (3) are both rotatably installed in the assembly cover (1) and are arranged concentrically. The same ends of the rotating drum (2) and the rotating cylinder (3) are both hollow structures combined with a cylinder and a cone. The spiral conveyor blade (4) is fixedly connected to the periphery of the rotating cylinder (3) and is arranged inside the rotating drum (2). Liquid phase outlets (11) and solid phase outlets (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 ends of the rotating drum (2) and the rotating cylinder (3). A slag discharge port (21) communicating with the solid phase outlet (12) is opened on the side wall of the rotating drum (2). It further includes a feeding pipe (5) and a cloth distributing assembly (6). The feeding pipe (5) is fixedly installed on the assembly cover (1) and extends into the inside of the rotating cylinder (3) from the large end of the rotating cylinder (3). The cloth distributing assembly (6) includes two groups of coaxial rotating discs (61) and cloth distributing plates (62) fixedly connected between the two groups of rotating discs (61) and distributed parallel to the radial direction. The rotating discs (61) are rotatably installed in the middle section of the rotating cylinder (3). The feeding pipe (5) is coaxial with the rotating discs (61) and is rotatably connected. The cloth distributing plates (62) include multiple groups distributed in an annular array. A feeding port (31) is opened on the side wall of the rotating cylinder (3) and is arranged between the two groups of rotating discs (61). It further includes an overflow assembly (7). The overflow assembly (7) is assembled to the large end of the rotating drum (2). The overflow assembly (7) and the outer wall of the rotating cylinder (3) form an overflow port whose gap can be adjusted. It further includes a driving assembly (8). The driving assembly (8) is in power connection with the rotating drum (2), the rotating cylinder (3), and the cloth distributing assembly (6).

2. The horizontal screw discharge sedimentation centrifuge according to claim 1, wherein: The overflow assembly (7) includes a fixed disc (71), a rotating disc (72), a driving sleeve (73), and triangular baffles (74). The fixed disc (71) and the rotating disc (72) are both annular structures. The fixed disc (71) is fixedly installed at the large end of the rotating drum (2). The rotating disc (72) is fixedly connected to the driving sleeve (73) and is rotatably installed in the assembly cover (1). The driving sleeve (73) is arranged outside the rotating drum (2). The triangular baffles (74) are arranged between the fixed disc (71) and the rotating disc (72). The triangular baffles (74) include multiple groups distributed in an annular array and are arranged in a fitting manner. On both sides of each group of triangular baffles (74), a pin shaft A (742) and a sliding seat (741) are respectively fixedly connected. Multiple groups of tangentially distributed sliding grooves A (711) are opened on the fixed disc (71). The sliding grooves A (711) and the sliding seats (741) are in sliding combination. Multiple groups of radially distributed sliding grooves B (721) are opened on the rotating disc (72). The pin shaft A (742) is combined with the sliding grooves B (721) in a rotating and sliding manner.

3. The horizontal screw discharge sedimentation centrifuge according to claim 2, wherein: The overflow assembly (7) further 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 inside the outer acting sleeve (75) and is arranged around the drive sleeve (73). The hydraulic telescopic cylinder (77) includes multiple groups fixedly installed on the outer side of the assembly cover (1) and distributed axially. The movable ends of each group of the hydraulic telescopic cylinders (77) are fixedly connected to the outer acting sleeve (75). A plurality of pin shafts B (731) distributed in an annular array are fixedly connected to the outer wall of the drive sleeve (73). An arc-shaped chute (761) that slidably cooperates with the pin shaft B (731) is formed on the inner wall of the inner acting sleeve (76).

4. The horizontal screw discharge sedimentation centrifuge according to claim 3, characterized in that: A plurality of pin seats (751) distributed in an annular array are fixedly connected to the outer acting sleeve (75). A chute C (13) that slidably cooperates with the pin seats (751) is formed on the inner wall of the assembly cover (1). A plurality of ear seats (752) extending to the outside of the assembly cover (1) are fixedly connected to the outer wall of the outer acting sleeve (75). The movable end of the hydraulic telescopic cylinder (77) is fixedly connected to the ear seat (752).

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

6. The horizontal screw discharge sedimentation centrifuge according to claim 1, wherein: A connecting bracket (51) is fixedly connected to the feeding pipe (5). The connecting bracket (51) is fixedly installed on the outer wall of the assembly cover (1). A driving seat A (22) is fixedly connected to the small end of the drum (2). The driving seat A (22) is rotatably installed at the end of the assembly cover (1). A driving seat B (32) is fixedly connected to the small end of the rotating drum (3). The driving seat B (32) is rotatably installed at the axis of the driving seat A (22). A transmission shaft (63) is fixedly connected at the axis of one of the turntables (61). The transmission shaft (63) is rotatably connected to the driving seat A (22). The driving seat A (22), the driving seat B (32), and the transmission shaft (63) all extend to the outside of the assembly cover (1).

7. The horizontal screw discharge sedimentation centrifuge according to claim 6, characterized in that: The driving assembly (8) includes a mounting cover (81) and a reduction gearbox (82). The mounting cover (81) is fixedly mounted to the end of the assembly cover (1). The driving seat A (22) and the driving seat B (32) are both arranged in the mounting cover (81). The transmission shaft (63) penetrates through the mounting cover (81) and is rotatably connected to the mounting cover (81). A driving bevel gear A (221), a driving bevel gear B (321), and a driving bevel gear C (631) are respectively fixedly connected to the driving seat A (22), the driving seat B (32), and the transmission shaft (63). The driving bevel gear A (221) and the driving bevel gear C (631) are symmetrically arranged. A plurality of sets of reversing bevel gears (811) distributed in an annular array are rotatably mounted on the mounting cover (81). The reversing bevel gears (811) are meshed with the driving bevel gear A (221) and the driving bevel gear B (321). A driving bevel gear A (632) is also fixedly connected to the transmission shaft (63). A driving bevel gear D (821) meshed with the driving bevel gear A (632) is fixedly connected to the input end of the reduction gearbox (82). A driving bevel gear B (822) meshed with the driving bevel gear B (321) is fixedly connected to the output end of the reduction gearbox (82).

8. The horizontal screw discharge sedimentation centrifuge according to claim 7, wherein: The driving assembly (8) further includes a driving motor (831), a redundant motor (832), and two sets of ratchet mechanisms (84) arranged in the same direction. The driving motor (831) and the redundant motor (832) are respectively power-connected to one set of the ratchet mechanisms (84). A transmission spur gear (633) is fixedly connected to the transmission shaft (63). Driving spur gears (85) meshed with the transmission spur gear (633) are assembled on both sets of the ratchet mechanisms (84).

9. A horizontal screw discharge sedimentation centrifuge according to claim 8, characterized in that: The ratchet mechanism (84) includes an internal ratchet (841), a mounting shaft (842), a pawl (843), and a reed (844). The driving spur gear (85) is fixedly connected to the periphery of the internal ratchet (841). The mounting shafts (842) in the two sets of ratchet mechanisms (84) are respectively coaxially and fixedly connected to the output shafts of the driving motor (831) and the redundant motor (832). The pawl (843) is rotatably mounted on the periphery of the mounting shaft (842) and is meshed with the internal ratchet (841). The reed (844) is assembled on the mounting shaft (842) and abuts against the pawl (843).

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