CN218654953U

CN218654953U - Horizontal screw centrifuge

Info

Publication number: CN218654953U
Application number: CN202222721279.5U
Authority: CN
Inventors: 费翔; 刘妮娜; 郁佳斌
Original assignee: Shanghai Centrifuge Institute Co Ltd
Current assignee: Shanghai Centrifuge Institute Co Ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-03-21
Anticipated expiration: 2032-10-14

Abstract

The utility model relates to a horizontal screw centrifuge, which comprises an underframe, a rotary drum component and a motor; the underframe comprises two side beams which are arranged in parallel, and at least two bearing cross beams are connected between the side beams; the rotary drum assembly is erected on the bearing cross beam and is driven by the motor to rotate; and the vertical longitudinal section of the rotary drum assembly is taken as a symmetrical plane, the parts of the underframe positioned at the two sides of the symmetrical plane are symmetrical, and the gravity center of the centrifuge is close to the symmetrical plane, or the gravity center of the centrifuge is positioned on the symmetrical plane. The beneficial effects are as follows: the centrifuge is more stable in operation, and the service life is prolonged; the concrete expression is as follows: the longitudinal section of the rotary drum assembly is taken as a symmetrical plane, the chassis is of a symmetrical structure, and meanwhile, the whole gravity center of the centrifugal machine is close to the symmetrical plane or is directly positioned on the symmetrical plane, so that seismic oscillation amplification caused by gravity center eccentricity is eliminated, the centrifugal machine is guaranteed to work more stably, and the service life of the centrifugal machine is prolonged.

Description

Horizontal screw centrifuge

Technical Field

The utility model belongs to the technical field of centrifuge, specific theory relates to a spiral shell centrifuge crouches.

Background

The horizontal screw centrifuge is a device for separating solid-liquid mixed liquid and automatically discharging, materials are fed into a rotary drum through a feeding pipe, and then subsequent solid-liquid separation is generated under the action of centrifugal force generated by high-speed rotation.

The bottom frame structure of the horizontal screw centrifuge is commonly in a horizontal type and a vertical type, relatively speaking, the centrifuge with the horizontal type bottom frame is applied, the whole gravity center of the centrifuge is far away from the position of the central line of the vertical projection of the centrifuge, so that the stress of each supporting leg is uneven, and the position of the gravity center of the centrifuge with the vertical type bottom frame is relatively close to the position of the central line of the vertical projection of the centrifuge, so that the stress of four-point supporting legs is more uniform; at present, the transmission assembly and the driving motor of the centrifuge using the vertical chassis are installed laterally, that is, the position of the motor is deviated from the vertical longitudinal section of the drum component.

With the development of the industry and the need of improving the working efficiency, the development direction of the centrifuge industry is also developing towards large scale, and the following is brought: the centrifuge has larger weight and volume, and the required power of the driving motor is also larger, so that the weight and volume of the motor are also larger, and the eccentric center of gravity is serious when the centrifugal centrifuge is arranged on a vertical underframe.

When the centrifugal machine works, the rotary drum rotates at a high speed, and the gravity center of the centrifugal machine is eccentric, so that the integral vibration of the centrifugal machine can be enhanced, and the service life of the centrifugal machine is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a spiral shell centrifuge crouches to solve the problem that meets in the centrifuge maximization development process.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a horizontal screw centrifuge comprises a chassis, a rotary drum assembly and a motor;

the underframe comprises two side beams which are arranged in parallel, and at least two bearing cross beams are connected between the side beams;

the rotary drum assembly is erected on the bearing cross beam and is driven by the motor to rotate;

and the vertical longitudinal section of the rotary drum assembly is taken as a symmetrical plane, the parts of the underframe positioned at the two sides of the symmetrical plane are symmetrical, and the gravity center of the centrifuge is close to the symmetrical plane, or the gravity center of the centrifuge is positioned on the symmetrical plane.

Preferably, the utility model provides a spiral shell centrifuge crouches still includes the protection casing, the protection casing is located on the chassis, the rotary drum subassembly run through in the protection casing erects in on the load-bearing beam.

Further, the protection casing includes upper shield, lower cover, the lower cover with the chassis can be dismantled and be connected, the upper shield with the lower cover can be dismantled and be connected, perhaps, the upper shield with the chassis can be dismantled and be connected.

Preferably, the utility model provides a spiral shell centrifuge crouches still includes four at least first bumper shock absorbers, first bumper shock absorber is located the bottom of chassis is right the chassis constitutes the support.

Furthermore, at least four supporting legs are arranged on the bottom frame, and the first shock absorber is connected with the supporting legs.

Preferably, the motor is arranged between the side beams and connected with both side beams, and the center of gravity of the motor is close to the symmetry plane.

Preferably, the horizontal decanter centrifuge provided by the utility model further comprises a motor mounting platform and at least two groups of supporting components, wherein the motor mounting platform is supported by the supporting components, and the height above the ground of the motor mounting platform can be adjusted by adjusting the supporting components; the motor is arranged on the motor mounting platform, and the gravity center of the motor is close to the symmetrical plane.

Furthermore, the mounting platform is connected with the underframe, and the height of the motor mounting platform above the ground can be adjusted by adjusting the connection positions among the support assembly, the mounting platform and the underframe.

Further, the utility model provides a spiral shell centrifuge crouches still include with the unanimous second bumper shock absorber of supporting component quantity, the second bumper shock absorber with the supporting component is connected.

Preferably, still be equipped with hoist and mount portion, hoist and mount portion locates on the chassis.

The utility model discloses a decanter centrifuge, its beneficial effect is: the centrifuge is more stable in operation, and the service life is prolonged; the concrete expression is as follows:

firstly, the longitudinal section of the rotary drum assembly is taken as a symmetrical plane, the chassis is of a symmetrical structure, and meanwhile, the whole gravity center of the centrifugal machine is close to the symmetrical plane or is directly positioned on the symmetrical plane, so that the stress of the supporting part of the centrifugal machine is more average, seismic oscillation amplification caused by gravity center eccentricity is eliminated, the centrifugal machine is ensured to be more stable in work, and the service life of the centrifugal machine is prolonged.

Secondly, the protection casing of centrifuge can be dismantled with the boundary beam and be connected, when having ensured the purpose of protection, still effectual reduction the ratio of welding area on the boundary beam, reached the purpose that reduces welding residual stress, when ensuring safety, still further extension centrifuge's life.

Finally, the vibration of the centrifuge during operation is relieved by the aid of the shock absorber, and accordingly the service life of the centrifuge is further prolonged.

Drawings

Constitute a part of this application, the description attached drawing is used for further understanding the utility model discloses, and the illustrative embodiment of the utility model and description are used for explaining the utility model, and do not constitute the improper restriction of the utility model.

Fig. 1 is a schematic view of a horizontal decanter centrifuge of the present invention.

Wherein: 1. a chassis; 11. an edge beam 12, a bearing cross beam; 2. a drum assembly; 3. a motor; 4. a protective cover; 5. supporting legs; 6. a hoisting part.

Detailed Description

For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.

As shown in fig. 1, a horizontal decanter centrifuge comprises a chassis 1, a rotary drum assembly 2, and a motor 3;

the underframe 1 comprises two side beams 11 which are arranged in parallel, and at least two bearing cross beams 12 are connected between the side beams 11;

the rotary drum component 2 is erected on the bearing beam 12 and is driven by the motor 3 to rotate;

the vertical longitudinal section of the drum assembly 2 is taken as a symmetry plane, the parts of the chassis 1 positioned on the two sides of the symmetry plane are symmetrical, the gravity center of the centrifuge is close to the symmetry plane, and optimally, the gravity center of the centrifuge is positioned on the symmetry plane.

It should be noted that, in the centrifuge, the drum assembly 2 is usually a drum and a spiral coaxially disposed with the drum and infinitely close to the inner wall of the drum, when the centrifuge drum assembly 2 is driven by the motor 3 to rotate at a high speed, the drum and the spiral rotate at different speeds, and under the action of centrifugal force, the solid-liquid mixed liquid is layered, that is, the liquid with lower density is close to the axis of the drum assembly 2 under the extrusion of solid, and the solid with higher density is far from the axis of the drum assembly 2 and closer to the inner wall of the drum, and meanwhile, due to the speed difference between the spiral and the drum, the solid is pushed towards the slag discharge port by the spiral sheet on the spiral.

Further, the drum assembly 2 is erected on the bearing beam 12, that is, the two ends of the drum are respectively connected by the bearings through the bearings and the bearing seats, the bearing seats are connected to the bearing beam 12, the bearing beam 12 is used for connecting and supporting the two ends of the drum assembly 2 through the matching of the bearings and the bearing seats, and the rest parts of the drum are suspended.

The parts of the chassis 1 on both sides of the symmetry plane are symmetrical, i.e. both sides of the chassis 1 are mirror images of the symmetry plane.

Further, in this embodiment, the proposed decanter centrifuge further includes a protective cover 4, the protective cover 4 is disposed on the base frame 1, and the rotary drum assembly 2 is erected on the bearing beam 12 through the protective cover 4.

It should be noted that, when the centrifuge is in operation, the drum assembly 2 rotates at a high speed to drive the solid-liquid mixed liquid to rotate at a high speed at the same time, so that potential hidden dangers exist, for example, the solid-liquid mixed liquid returns to the outer wall of the drum and is thrown out at a high speed to cause casualties or equipment damage, and therefore, the horizontal decanter centrifuge provided in this embodiment is further provided with a protective cover 4 covering the drum assembly 2, and generally, the protective cover 4 is cylindrical with openings at two ends.

Further, in this embodiment, for the convenience of assembly, the protection cover 4 may be further divided into two parts, that is, an upper cover and a lower cover, wherein the lower cover is detachably connected to the chassis 1, and further, the upper cover may be detachably connected to the lower cover or directly detachably connected to the chassis 1, wherein the detachable connection includes but is not limited to clamping, and the connection is achieved by combining the upper cover and the lower cover by using a connector such as a bolt.

Further, in this embodiment, the proposed decanter centrifuge further includes at least four first shock absorbers, the first shock absorbers are disposed at the bottom of the bottom frame 1 to support the bottom frame 1, when the centrifuge is used, a basic supporting surface is usually disposed, and the first shock absorbers capable of absorbing shock are used to support the bottom frame 1, so as to reduce the influence of the centrifuge on the surrounding environment during operation, and simultaneously, maximally eliminate the shock caused by the operation of the centrifuge.

Further, in this embodiment, at least four supporting legs 5 are arranged on the bottom frame 1, the first shock absorber is connected with the supporting legs 5, and the supporting legs 5 are added, so that the strength of the bottom frame 1 is ensured, and the ground clearance of the bottom frame 1 can be properly raised, thereby ensuring that the motor 3 has enough installation space; meanwhile, the chassis 1 can be prepared from materials with the most appropriate specification according to actual needs, so that the material cost of the chassis 1 is reduced.

Further, as an embodiment of the present invention, the motor 3 is disposed between the side beams 11 and connected to both side beams 11, and the center of gravity of the motor 3 is close to the symmetry plane; the motor 3 is connected with the side beams 11 at the two sides, and the adopted mode includes but is not limited to that the side beam 11 is provided with a fixed part of the motor 3, and the motor 3 is detachably connected with the fixed part through a connecting piece such as a bolt and the like; alternatively, a support plate is provided between the side beams 11, and the motor 3 is fixed to the support plate by a connecting member such as a bolt; in this embodiment, the motor 3 is connected with the chassis 1 to form a whole, and is supported on the ground by the first shock absorber.

Further, as another embodiment of the present invention, the horizontal decanter centrifuge provided in this embodiment further includes a motor 3 mounting platform and at least two sets of supporting components, wherein the motor 3 mounting platform is supported by the supporting components, and the ground clearance of the motor 3 mounting platform is adjustable by adjusting the supporting components; the motor 3 is arranged on the motor 3 mounting platform, and the gravity center of the motor 3 is close to the symmetrical plane; it should be noted that, in this embodiment, the support assembly includes a fixed portion and an adjusting portion, wherein under the action of an active external force of an operator, the adjusting portion can relatively move along the fixed portion to adjust the height of the motor 3 on the ground, and the specific form of the support assembly includes, but is not limited to, a combination of a screw and a nut, an electric cylinder, a hydraulic cylinder, an air cylinder, and the like.

Further, in this embodiment, the mounting platform is connected to the base frame 1, and the height of the motor 3 from the ground is adjustable by adjusting the connection positions of the support assembly, the mounting platform and the base frame 1; it should be noted that, in this embodiment, the mounting platform is connected to the base frame 1, usually by using a connector such as a bolt, and a notch is usually provided on the base frame 1 and/or the mounting platform, and the notch is used to adjust the connection position between the mounting platform and the base frame 1.

Further, the horizontal decanter centrifuge provided by the present embodiment further includes second shock absorbers in a number consistent with that of the support assemblies, and the second shock absorbers are connected to the support assemblies; it should be noted that, in this embodiment, one end of the supporting component is connected with the mounting platform, and the other end is supported on the supporting surface, so as to form a support for the mounting platform, wherein the supporting surface includes a ground surface and a structural surface for placing the centrifuge, or a platform disposed on the chassis 1, in order to ensure the stability of the centrifuge during operation, the distance between the motor 3 and the drum component 2 needs to be as consistent as possible, so in this embodiment, the supporting component is supported by using the second shock absorber having the shock absorbing function, thereby eliminating the influence of the shock caused by the operation of the centrifuge on the distance between the motor 3 and the drum component 2 to the maximum extent.

Further, in the above embodiment, the chassis 1 is further provided with a hoisting part 6; set up hoist and mount portion 6, the handling when more being favorable to centrifuge to transport, generally, hoist and mount portion 6 is cyclic annular to the high-speed joint of loop wheel machine.

It should be added that, in the above embodiment, the first shock absorber and the second shock absorber are generally made of elastic rubber, and have two opposite surfaces parallel to each other; in fact, the first damper and the second damper may also adopt spring damping, gas damping, hydraulic damping and other known components with vibration damping or even eliminating functions.

Synthesize above-mentioned embodiment, the utility model provides a spiral shell centrifuge crouches, its beneficial effect obviously includes: the centrifuge is more stable in operation, and the service life is prolonged; the concrete expression is as follows:

firstly, the longitudinal section of the rotary drum component 2 is taken as a symmetrical plane, the chassis 1 is of a symmetrical structure, and meanwhile, the whole gravity center of the centrifugal machine is close to the symmetrical plane or is directly positioned on the symmetrical plane, so that the stress of the supporting part of the centrifugal machine is more even, seismic oscillation amplification caused by gravity center eccentricity is eliminated, the centrifugal machine is ensured to be more stable in work, and the service life of the centrifugal machine is prolonged.

Secondly, the protection casing 4 of centrifuge can be dismantled with boundary beam 11 and be connected, when having ensured the purpose of protection, still effectual reduction boundary beam 11 goes up welding area's proportion, has reached the purpose that reduces welding residual stress, when ensuring safety, still further extension centrifuge's life.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; 'above" may include both orientations "at 8230; \8230;' above 8230; 'at 8230;' below 8230;" above ". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and decorations can be made without departing from the principle of the present invention. Such modifications and finishes are also to be considered as the scope of protection of the present invention.

Claims

1. A horizontal screw centrifuge is characterized in that: comprises a bottom frame, a rotary drum component and a motor;

2. A decanter centrifuge as defined in claim 1, wherein: the rotary drum assembly is characterized by further comprising a protective cover, the protective cover is arranged on the bottom frame, and the rotary drum assembly penetrates through the protective cover and is erected on the bearing cross beam.

3. A decanter centrifuge as defined in claim 2, wherein: the protection casing includes upper cover, lower cover, the lower cover with the chassis can be dismantled and be connected, the upper cover with the lower cover can be dismantled and be connected, perhaps, the upper cover with the chassis can be dismantled and be connected.

4. A decanter centrifuge as defined in claim 1, wherein: the shock absorber further comprises at least four first shock absorbers, and the first shock absorbers are arranged at the bottom of the underframe and support the underframe.

5. A decanter centrifuge as defined in claim 4, wherein: at least four supporting legs are arranged on the underframe, and the first shock absorber is connected with the supporting legs.

6. A decanter centrifuge as defined in claim 1, wherein: the motor is arranged between the side beams and connected with the side beams at two sides, and the gravity center of the motor is close to the symmetrical plane.

7. A decanter centrifuge as defined in claim 1, wherein: the device is characterized by further comprising a motor mounting platform and at least two groups of supporting components, wherein the motor mounting platform is supported by the supporting components, and the ground clearance of the motor mounting platform can be adjusted by adjusting the supporting components; the motor is arranged on the motor mounting platform, and the gravity center of the motor is close to the symmetrical plane.

8. A decanter centrifuge as defined in claim 7, wherein: the mounting platform is connected with the underframe, and the ground clearance of the motor mounting platform can be adjusted by adjusting the connecting positions of the supporting component, the mounting platform and the underframe.

9. A decanter centrifuge as defined in claim 7, wherein: the number of the second shock absorbers is consistent with that of the support assemblies, and the second shock absorbers are connected with the support assemblies.

10. A decanter centrifuge as defined in any one of claims 1-9, wherein: still be equipped with hoist and mount portion, hoist and mount portion locates on the chassis.