CN209889666U

CN209889666U - Rotary feeder for conveying high-hardness powder

Info

Publication number: CN209889666U
Application number: CN201920386829.8U
Authority: CN
Inventors: 李源林; 高大鹏; 包晗; 闫丽丽; 侯妍冰
Original assignee: Shanghai Hoosun Mechanical & Electrical Technology Co Ltd
Current assignee: Jiangsu ruicai Equipment Co.,Ltd.
Priority date: 2019-03-26
Filing date: 2019-03-26
Publication date: 2020-01-03
Anticipated expiration: 2029-03-26

Abstract

The utility model relates to a fine chemical industry field specifically is a rotary feeder for carrying high rigidity powder, including casing, impeller and impeller actuating mechanism, the internally mounted of casing has the impeller, and impeller actuating mechanism is connected with the impeller, and the end cover that impeller and casing both sides set up passes through the bearing to be connected, and the outside of impeller is provided with wear-resisting sleeve in the casing, and clearance fit sets up between impeller and the wear-resisting sleeve. The utility model can realize on-line replacement without dismounting the whole device from the production line; the whole process time is short from the stop of the production line to the restart of the production line, so that the production stopping time is greatly saved, and the loss caused by the production stopping of the production line is reduced; when the wear-resistant sleeve is damaged, only the new wear-resistant sleeve needs to be replaced, the whole valve body does not need to be replaced, and the maintenance cost and the labor cost are greatly saved.

Description

Rotary feeder for conveying high-hardness powder

Technical Field

The utility model relates to a fine chemical industry field specifically is a rotary feeder for carrying high rigidity powder, carries out the ration to solid powder in trades such as especially coating, paint, printing ink, pigment, resin, pesticide, lithium cell material and carries.

Background

At present, the rotary feeder is widely applied to a quantitative conveying system of solid powder. The equipment mainly comprises a shell, an impeller, an end cover, a rotary sealing system, an impeller driving system and the like. When the solid powder with the Mohs hardness of less than 4 is quantitatively conveyed, obvious scratches and grooves cannot be formed between the top end of the impeller and the inner hole of the shell; when the Mohs hardness of the solid powder is more than 5, obvious scratches and grooves can be formed between the top end of the impeller of the equipment and the inner hole of the shell, so that the equipment is damaged quickly.

Chinese patent (No. CN 205838032U) discloses a ceramic vertical rotary feeder, which comprises a feeding tank, wherein the feeding tank is arranged on a rotating shaft in a penetrating way but is not fixed with the rotating shaft, the feeding tank is fixed with a sealing bearing device arranged below the feeding tank and assembled on the rotating shaft, the bottom of the rotating shaft is connected with a driving assembly, a stirrer is arranged at the top of the rotating shaft, the feeding tank comprises a cylinder body forming an inner cavity, a top plate and a bottom plate, an impeller is fixedly arranged on the rotating shaft and positioned in the inner cavity, a plurality of cavities are uniformly divided from the inner cavity along the circumferential direction by blades uniformly distributed on the impeller, a ceramic layer is embedded on the end faces of the blades of the impeller, the cylinder body, the top plate and the bottom plate are pasted with ceramic layers, the top plate is provided with a feeding port, the bottom plate is provided with a discharging port.

From the above-mentioned publications, domestic rotary feeders are generally used for ordinary less hard solid powders, or ceramic sheets are attached to the inside of the apparatus and the material contact surface. When the ceramic surface may be worn by the equipment for a period of time, the surface cannot be repaired and the shell can only be made again. Therefore, in view of the above situation, there is a need to develop a rotary feeder for conveying high hardness powder to overcome the disadvantages of the current practical application.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rotary feeder for carrying high rigidity powder to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a rotary feeder for carrying high rigidity powder, includes casing, impeller and impeller actuating mechanism, the internally mounted of casing has the impeller, and impeller actuating mechanism is connected with the impeller, the end cover that impeller and casing both sides set up passes through the bearing and is connected, the outside of impeller is provided with wear-resisting sleeve in the casing, just clearance fit sets up between impeller and the wear-resisting sleeve.

As a further aspect of the present invention: the shell is provided with a feeding hole and a discharging hole.

As a further aspect of the present invention: and a shaft end sealing element is also arranged at the joint of the impeller and the end cover.

As a further aspect of the present invention: and hard alloy with the thickness of 2-4 mm is additionally welded at the outer end of the impeller in a surfacing mode.

As a further aspect of the present invention: the wear-resistant sleeve and the shell are fixedly connected through a locking piece.

Compared with the prior art, the beneficial effects of the utility model are that:

1) the whole equipment does not need to be detached from the production line, and online replacement can be realized;

2) the whole process time is short from the stop of the production line to the restart of the production line, so that the production stopping time is greatly saved, and the loss caused by the production stopping of the production line is reduced;

3) when the wear-resistant sleeve is damaged, only the new wear-resistant sleeve needs to be replaced, the whole valve body does not need to be replaced, and the maintenance cost and the labor cost are greatly saved.

Drawings

Fig. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic side view of the present invention.

In the figure: the method comprises the following steps of 1-casing, 2-impeller, 3-wear-resistant sleeve, 4-end cover, 5-shaft end sealing element, 6-impeller driving mechanism, 7-feeding hole and 8-discharging hole.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1-2, in the embodiment of the present invention, a rotary feeder for conveying high hardness powder includes a casing 1, an impeller 2, an end cover 4 and an impeller driving mechanism 6, wherein the casing 1 is provided with a feed inlet 7 and a discharge outlet 8, solid powder enters the valve body feed inlet 7, is rotated by the impeller 2 and is discharged from the valve body discharge outlet 8, the impeller 2 is installed inside the casing 1, the impeller 2 is connected with the end covers 4 arranged at two sides of the casing 1 through bearings, a shaft end sealing member 5 is further arranged at a joint of the impeller 2 and the end cover 4, the sealing property of the connection is improved by the shaft end sealing member 5, a wear-resistant sleeve 3 is arranged inside the casing 1 outside the impeller 2, and the impeller 2 and the wear-resistant sleeve 3 are arranged in a clearance fit manner, the impeller driving mechanism 6 is connected with the impeller 2, the impeller driving mechanism 6 is used, the wear condition of the wear-resistant sleeve 3 is checked regularly, the period is generally 3-6 months, when the wear condition of the surface of the wear-resistant sleeve 3 reaches a certain degree, the production line is required to be stopped, the end cover 4 on one side is opened quickly, the wear-resistant sleeve 3 is taken out, and a new wear-resistant sleeve 3 is put in.

Example 2

Referring to fig. 1-2, the present embodiment is different from embodiment 1 in that:

in this embodiment, the outer end of the impeller 2 is also welded with hard alloy with a thickness of 2-4 mm.

In this embodiment, the wear-resistant sleeve 3 and the housing 1 are fixed by a locking member.

In this embodiment, the shaft end sealing member 5 is connected with compressed air to ensure positive pressure inside the valve body.

Practical case

There is an interior Mongolia project, need use the rotary feeder equipment, and the material that the owner carried is the quartz sand that the mohs hardness is at 7-8, and ordinary rotary feeder can't satisfy wear-resisting requirement, and this company once made the equipment of blade and casing 1 inside build-up welding carbide for other operating modes, and the cost of manufacture is very high, and is also very long consuming time, and after using half a year, the wearing layer of casing 1 takes place to drop, leads to changing whole equipment. After the structure of this application is used, wear-resisting sleeve 3 changes once about half a year, and remaining spare part need not be changed, also need not detach the production line with equipment, greatly reduced cost of maintenance and cost of labor.

The production working condition of the rotary feeder is usually 24 hours of continuous work every day, the production line cannot stop when the production line is not used, and efficient, continuous and automatic production is realized. In order to solve the problem that the wear-resistant surface in the shell 1 needs to be quickly replaced, the discovery optimizes the traditional wear-resistant structure, adopts a quick replaceable structure, and solves the problem that the production needs to be stopped for a long time; in addition, the hard alloy is butt-welded at the top end of the blade of the impeller 2, so that the blade is prevented from being abraded, the damaged wear-resistant surface can be quickly replaced, and the production stop loss of a production line is reduced to the minimum.

The rotary feeder for conveying high-hardness powder has the following outstanding characteristics:

2) the whole process can not exceed 2 hours from the stop of the production line to the restart of the production line, thereby greatly saving the production stop time and reducing the loss caused by the production stop of the production line;

3) when the wear-resistant sleeve 3 is damaged, only the new wear-resistant sleeve 3 needs to be replaced, the whole valve body does not need to be replaced, and the maintenance cost and the labor cost are greatly saved.

The above is only the preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims

1. The utility model provides a rotary feeder for carrying high rigidity powder, includes casing (1), impeller (2) and impeller actuating mechanism (6), the internally mounted of casing (1) has impeller (2), and impeller actuating mechanism (6) are connected with impeller (2), its characterized in that, end cover (4) that impeller (2) and casing (1) both sides set up are passed through the bearing and are connected, the outside of impeller (2) is provided with wear-resisting sleeve (3) in casing (1), just clearance fit sets up between impeller (2) and wear-resisting sleeve (3).

2. A rotary feeder for transporting high hardness powders according to claim 1, characterised in that the casing (1) is provided with an inlet (7) and an outlet (8).

3. A rotary feeder for transporting high hardness powders according to claim 1, characterized in that the junction of the impeller (2) and the end cover (4) is further provided with a shaft end seal (5).

4. A rotary feeder for transporting high hardness powder according to claim 1 or 3, characterized in that the outer end of the impeller (2) is also deposited with 2-4 mm thick cemented carbide.

5. A rotary feeder for transporting high hardness powder according to claim 4, characterised in that the wear sleeve (3) and the casing (1) are fixed in connection by a locking element.