CN217940522U - Rotary drum protective cover applied to disc centrifuge - Google Patents

Abstract

The utility model discloses a can be applied to rotary drum safety cover on dish centrifuge, rotary drum safety cover and dish centrifuge's rotary drum form the fitting relation, laminate in the rotary drum inner wall, do not have relative rotation with the rotary drum when centrifuge is in operation, this kind of laminating can be with the laminating of the full surface of rotary drum inner wall, also can be with the laminating of the partial surface of rotary drum inner wall. The utility model discloses a setting or assembly rotary drum safety cover and centrifuge drum internal surface laminate, the rotary drum safety cover replaces the rotary drum and mixes the particulate matter in liquid or the heavy liquid and rubs to reach extension rotary drum life's purpose, the rotary drum safety cover still has the advantage of easily dismouting and change.

Description

Rotary drum protective cover applied to disc centrifuge

Technical Field

The utility model belongs to the technical field of centrifuge uses, concretely relates to can be applied to rotary drum safety cover on dish centrifuge to avoid rotary drum and particulate matter directly to rub, thereby reach the purpose of protection rotary drum and its life of extension.

Background

The disk centrifuge can rapidly and continuously separate solid and liquid, liquid and liquid, solid and two kinds of liquid with different specific gravities, wherein the specific gravity of the solid is required to be larger than that of the liquid to be separated from the solid, and the disk centrifuge is widely applied to the industrial industries of chemical industry, medicine, food and the like. With the higher requirements of modern industry on the size precision and the product cleanliness of parts and the higher and higher environmental protection requirements, the environmental protection pressure of enterprises is continuously increased, so that the application of the centrifugal machine in the industrial industry is more extensive. The mixed liquor in the industrial industry is generally accompanied by particulate matter, which is produced during the processing or cleaning process. The characteristics of the disk centrifuge itself make it possible to remove particulate matter and light liquid from the mixed liquor. Due to different internal flow channels of the centrifuge, when mixed liquid of the centrifuge in a partial structure form enters a drum system, the mixed liquid can rub against a drum to cause the abrasion of the drum; in other structural forms, when heavy liquid climbs along the wall of the rotary drum after separation, the particles can also rub against the rotary drum, so that the rotary drum is abraded. Because of the inconsistent size of the particulate matter, the centrifuge itself typically has a fixed separation capacity, and when the particle size of the particulate matter is less than its separation capacity, the particulate matter can leave the centrifuge with the heavy liquid, and the particulate matter can also rub against the bowl during this process, thereby causing wear to the bowl.

The rotary drum is used as the most important rotating part in the centrifuge, the rotary drum bears very large centrifugal force, although the centrifuge needs more than 2.5 times of safety factor according to international universal standard during design, after the centrifuge works for a long time, if the centrifuge is careless for inspection, safety risk occurs, and the explosion of the rotary drum of the centrifuge occurs internationally and domestically, so that very serious safety accidents are caused. In addition, the replacement of the centrifuge drum is also troublesome and the manufacturing cost is high. In view of the above circumstances, the present invention provides a drum protecting cover which is used to prevent direct friction between the drum and the particulate matter, thereby prolonging the life of the drum, and which has advantages of low cost, easy replacement and no change in the performance of the centrifuge. At present, the related disclosure of a drum protection device like a drum protection cover to reduce the operation cost of enterprises is not available in the prior art.

Disclosure of Invention

To the rotary drum wearing and tearing problem that exists among the above-mentioned prior art, the utility model provides a rotary drum protection device, thereby the life-span of avoiding rotary drum and particulate matter to take place direct friction extension rotary drum is avoided to the purpose.

In order to solve the problem, the utility model provides a solution of rotary drum safety cover, specific technical scheme be one kind can be applied to the rotary drum safety cover on the disk centrifuge, and the rotary drum safety cover forms the assembly relation with disk centrifuge's rotary drum, laminates in the rotary drum inner wall, does not have relative rotation with the rotary drum when centrifuge is in operation.

The joint can be the joint with the whole surface of the inner wall of the rotary drum or the joint with part of the surface of the inner wall of the rotary drum.

According to the difference of the inner flow channels of the centrifuge, the drum protective cover can prevent mixed liquid from directly impacting the drum when the mixed liquid enters the centrifuge drum, or the drum protective cover can prevent particles which are not separated from the heavy liquid from directly impacting the inner wall of the drum when the heavy liquid climbs along the inner wall of the drum after the mixed liquid is separated.

The drum protection cover can be attached to the inner wall of the drum after being assembled with other components.

The disk centrifuge is a three-phase settling disk centrifuge.

The three-phase sedimentation disk centrifuge is of a one-way core pump structure or a two-way core pump structure.

The three-phase sedimentation disk centrifuge is a disk centrifuge capable of simultaneously separating three liquid-solid phases.

The three-phase sedimentation disk centrifuge is a disk centrifuge capable of performing liquid-solid or liquid-liquid separation.

The drum protection cover in the assembled relationship is easy to disassemble, assemble and replace.

The utility model has the advantages of:

1, the utility model discloses a setting or assembly rotary drum safety cover laminate with centrifuge drum internal surface, and the rotary drum safety cover replaces the rotary drum and mixes the particulate matter in liquid or the heavy liquid and rubs to reach extension rotary drum life's purpose.

The drum is used as the most important rotating part in the centrifuge, the joint of the drum protecting cover and the inner wall of the drum can be full-surface joint or partial-surface joint, and the operating cost can be obviously reduced by arranging the drum protecting cover at the position with the maximum centrifugal force and tension of the inner wall of the drum.

3, the rotary drum protection cover is easy to disassemble, assemble and replace, the structure and the performance of a flow channel of the centrifuge are not changed, the fixing mode of the rotary drum protection cover is not limited, the requirement on materials is low, the rotary drum protection cover is easy to disassemble, assemble and replace, and after-sale service waiting time and equipment downtime can be reduced.

4, three-phase subsides disk centrifuge among the disk centrifuge both includes the disk centrifuge that can carry out three kinds of solid-liquid phase body separations simultaneously, also can be the disk centrifuge who carries out two separation of solid-liquid or liquid-liquid, the utility model provides a three-phase subsides disk centrifuge can be applied to the rotary drum safety cover.

Drawings

FIG. 1 is a schematic diagram of a drum structure of a centrifuge with a one-way pump structure;

FIG. 2 is a schematic diagram of a drum structure of a two-way heart pump centrifuge;

FIG. 3 is a schematic structural diagram of a drum protective cover and a drum applied to a single-direction pump;

fig. 4 is a schematic structural diagram of a drum protective cover and a drum matched for a bidirectional heart pump.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 and 2 are schematic sectional views of drums of a centrifugal machine with a unidirectional core pump structure and a centrifugal machine with a bidirectional core pump structure, respectively. Fig. 3 and 4 are schematic diagrams respectively illustrating the effect of applying the centrifuge drum protective cover to the drum of the unidirectional core pump and the bidirectional core pump.

The meaning of the reference symbols in the figures: 1. The upper shoulder part of the unidirectional core pump rotary drum; 2. a solid particle settling zone part of the unidirectional core pump rotary drum; 3. the bottom part of the unidirectional core pump rotary drum; 4. an upper rotary drum part of the bidirectional heart pump; 5. a drum part under the double centripetal pump; 6. and (4) rotating a drum protective cover.

1-5 are susceptible to wear from particulate matter. The clearance between the drum protection cover 6 and the drum part shown in 1-5 is only for convenient figure identification, and the condition without clearance is preferred in practical use.

The utility model discloses a setting position of rotary drum safety cover as follows:

in the disc centrifuge field of the single-direction pump shown in fig. 3, the drum parts shown by reference numerals 1 to 3 are worn to different degrees due to different liquid feeding modes of the mixed liquid. According to practical experience, the parts 1 and 3 are particularly easy to wear, and the drum of the single-direction centrifugal pump is characterized by an integral structure, wherein the part 1 is the most important part and is also the position with the highest centrifugal force and the highest tension according to the design principle of the centrifugal machine. 1-3 separate marks in the schematic diagram, corresponding protective covers can be independently arranged according to the actual liquid inlet mode of the centrifuge, and the rotary drum protective cover 6 adopts a separate structure for easy identification in the schematic diagram and can be an integral type actually. The requirements are that the rotary drum is effectively protected, the friction with particles in mixed liquid or heavy liquid is avoided, the rotary drum protective cover 6 is well attached to the inner wall of the rotary drum, the rotary drum protective cover and the rotary drum do not rotate relatively when the centrifugal machine works, the centrifugal machine is easy to disassemble and assemble, and the performance of the centrifugal machine is not changed. The utility model discloses do not injecing installation, the fixed mode to the rotary drum guard shield, allow according to the centrifuge of isostructure and runner form, set up reasonable installation and fixed mode can.

The fixing mode of the drum protecting cover is not limited, and the drum protecting cover, the specific gravity ring and the drum are preferably assembled and compacted. The material of the drum protective cover is not particularly limited as long as the overall performance of the centrifuge is not changed, and for example, glass fiber reinforced strong engineering plastics, wear-resistant stainless steel sheets and the like can be adopted.

In the disc centrifuge field of the bidirectional core pump shown in fig. 4, a liquid inlet mode from the bottom of the center is generally adopted, so that the positions of the rotating drums shown in 4-5 are abraded, but the centrifugal machine of the bidirectional core pump is mostly an automatic slag discharge centrifugal machine, so that the rotating drum body is divided into an upper part and a lower part, a sealed structural form is formed after assembly, and the rotating drum protective cover 6 needs to be correspondingly arranged into an upper rotating drum protective cover and a lower rotating drum protective cover. The requirements are that the drum is effectively protected, the friction with particles in mixed liquid or heavy liquid is avoided, the bonding with the inner wall of the drum is good, the drum does not rotate relative to the drum in the work of the centrifugal machine, the drum is easy to disassemble and assemble, and the performance of the centrifugal machine is not changed.

Due to the wider application of centrifuges, the application environment of centrifuges is sometimes even very harsh, for example, when the centrifuges are used in a strong acid and strong alkali environment containing particulate matters and a high temperature environment, the centrifuges can bear larger pressure for the rotary drum. The utility model discloses optimize to the problem that above-mentioned centrifuge rotary drum probably meets, can solve above-mentioned problem very conveniently through the rotary drum safety cover, reduce the operation cost of enterprise, the safety cover that can more renew rapidly after the rotary drum safety cover wearing and tearing, and low in cost.

It should be noted that the above-mentioned embodiments provided by the present invention are only illustrative, and do not have the function of limiting the scope of the specific implementation of the present invention. The scope of the present invention is intended to include modifications or alternatives that would be apparent to those of ordinary skill in the art.

Claims (4)

1. The utility model provides a be applied to rotary drum safety cover on dish centrifuge, its characterized in that dish centrifuge subsides dish centrifuge for three-phase, including one-way heart pump structure or two-way heart pump structure, the rotary drum safety cover forms the assembled relation with the rotary drum of three-phase subsides dish centrifuge, if one-way heart pump structure the rotary drum safety cover pastes in the last shoulder position of rotary drum, solid particulate matter settlement district position and the bottom position of rotary drum, if two-way heart pump structure the rotary drum safety cover pastes in last rotary drum position and the lower rotary drum position of two-way heart pump, and rotary drum safety cover and rotary drum do not have relative rotation when centrifuge is worked, the rotary drum safety cover can avoid directly impacting the rotary drum when mixed liquid gets into centrifuge rotary drum, or mixed liquid is when heavy liquid climbs along the rotary drum inner wall after accomplishing the separation the rotary drum safety cover can avoid the direct impact rotary drum inner wall that the particulate matter that is not separated in the heavy liquid, the rotary drum safety cover that is in the assembled relation is easily dismantled and changed.

2. The drum protector according to claim 1, wherein said fitting relationship is also such that said drum protector fits the inner wall of the drum after fitting relationship with other components.

3. The drum protector according to claim 1, characterized in that the three-phase settling disk centrifuge is a disk centrifuge capable of simultaneously performing liquid-solid three-phase separation.

4. The drum protector of claim 1, wherein the three-phase settling disk centrifuge is a disk centrifuge capable of both liquid-solid and liquid-liquid separation.

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