CN113457961A

CN113457961A - Unpowered drum sieve

Info

Publication number: CN113457961A
Application number: CN202010236165.4A
Authority: CN
Inventors: 张建辉; 张福亚; 高轩; 曾晖; 陈强; 吴峰
Original assignee: BGRIMM Machinery and Automation Technology Co Ltd
Current assignee: BGRIMM Machinery and Automation Technology Co Ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2021-10-01

Abstract

The invention provides an unpowered drum screen which comprises a supporting device, an executing device and a screening device, wherein the supporting device is connected with the executing device; the execution device is arranged on the supporting device, and the screening device penetrates through the execution device and acts simultaneously along with the execution device. The invention eliminates the limitation that the common trommel sieve needs a power motor, is convenient for the arrangement of equipment and has zero energy consumption.

Description

Unpowered drum sieve

Technical Field

The invention relates to the technical field of drum screens, in particular to an unpowered drum screen.

Background

The particle size classification is a common process in the fields of mining and metallurgy, chemical engineering and environmental protection, and the used equipment comprises a fixed sieve, a rotary screen, a cyclone and the like. The fixed screen does not have the function of discharging coarse particles, and needs to be cleaned or replaced regularly, so that the continuous production is influenced. The common drum screen can roll only by adding a power device (generally a motor), the power device greatly increases the complexity of the equipment, and equipment such as a cyclone and the like are more complicated to match and are not suitable in many occasions. Especially when the material is slurry, the protection requirement to the motor is higher, and some occasions even inconvenient provide the power, this all has restricted the application of having power drum sieve.

Disclosure of Invention

In order to solve the problems, the invention provides an unpowered rotary screen, which gets rid of the defect of short maintenance period of an unpowered fixed screen and the defect of power supply required by other rotary screens.

The invention provides an unpowered drum screen which comprises a supporting device, an executing device and a screening device, wherein the supporting device is connected with the executing device; the execution device is arranged on the supporting device, and the screening device penetrates through the execution device and acts simultaneously along with the execution device.

Further, the supporting device is a frame.

Further, the execution device includes: a bearing, a main shaft and an impeller; the main shaft is erected on the supporting device through the bearing; the impeller is fixedly connected with the main shaft.

Furthermore, the number of the bearings is two, and the two bearings are respectively connected with two ends of the main shaft.

Furthermore, the main shaft and the horizontal plane form an included angle of 0-90 degrees.

Further, the bearing is one of a rolling bearing or a sliding bearing.

Further, the main shaft is one of a unitary shaft, a segmented shaft, or an interrupted shaft.

Furthermore, the number of the blades of the impeller is 2-8.

Further, the screening device comprises: a cylindrical screen and a coarse particle outlet; the cylindrical screen is arranged on the execution device in a penetrating mode and moves along with the execution device; the coarse particle outlet is arranged at one end of the cylindrical screen.

Further, the mesh shape of the cylindrical screen may be one of a circle and a polygon.

Compared with the prior art, the invention has the beneficial effects that: the screening device is arranged on the execution device in a penetrating mode, the execution device acts under the impact of the materials, the screening device acts simultaneously along with the execution device, and the screening device can roll automatically without power provided by driving devices such as motors. The limitation that a power motor is needed by a common drum screen is eliminated, the equipment is convenient to arrange, and the energy consumption is zero.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural view of an unpowered trommel according to an embodiment of the present invention;

fig. 2 is a schematic view of the working state of an unpowered trommel according to an embodiment of the present invention.

Description of reference numerals:

1: a frame; 2: a bearing; 3: an impeller; 4: a cylindrical screen; 5: a main shaft; 6: and (4) a coarse particle outlet.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, the present invention provides an unpowered trommel, which comprises a supporting device, an executing device and a screening device; the execution device sets up on strutting arrangement, and the sieving mechanism wears to establish on the execution device, and the execution device action under the impact of material for the sieving mechanism follows the execution device and moves simultaneously. Need not to give power supplies such as screening plant configuration motor, when actuating mechanism motion, the screening plant who wears to establish on actuating mechanism can the synchronous motion roll, reaches the effect of sieve grain.

As a further improvement and complement to the above technical solution, the supporting device is a frame 1. The frame 1 is erected on the ground and plays a role in stabilizing the whole device.

As a further improvement and complement to the above technical solution, the executing device comprises: a bearing 2, a main shaft 5 and an impeller 3; the main shaft 5 is erected on the supporting device through the bearing 2; the impeller 3 is fixedly connected with the main shaft 5. The impeller 3 is fixedly arranged on the main shaft 5 in a penetrating mode, and when the impeller 3 is impacted by materials to rotate, the main shaft 5 can rotate in a linkage mode, so that the screening device is driven to roll. The bearing 2 serves to connect the main shaft 5 and the support means.

As a further improvement and supplement to the technical scheme, two bearings 2 are arranged and are respectively connected with two ends of the main shaft 5. Two ends of the main shaft 5 are respectively provided with a bearing 2, and the bearings 2 are respectively connected with the supporting device, so that the whole mechanism is more stable.

As a further improvement and supplement to the technical scheme, the main shaft 5 and the horizontal plane form an included angle of 0-90 degrees. The main shaft 5 and the horizontal plane form an included angle with a certain angle, and on one hand, a certain impact angle is given during feeding so that the kinetic energy of the rotation of the actuating mechanism is larger; on the other hand, the discharge of coarse-grained materials is also facilitated. The preferred main shaft 5 in the present invention is at 30 ° to the horizontal.

As a further improvement and complement to the above technical solution, the bearing 2 is one of a rolling bearing or a sliding bearing. The preferred bearing 2 in the present invention is a rolling bearing.

As a further improvement and supplement to the above technical solution, the main shaft 5 is one of a unitary shaft, a segmented shaft or an interrupted shaft. The main shaft 5 preferred in the present invention is a unitary shaft.

As a further improvement and supplement to the technical scheme, the number of the blades of the impeller 3 is 2-8. The rotation direction of the impeller can be left-handed or right-handed. The blades may be flat, helical, or otherwise curved. The blades are designed into a spiral surface or other curved surfaces, so that the blades can drive the actuating mechanism to rotate when feeding. Preferred blades in the present invention are helicoids.

As a further improvement and complement to the above technical solution, the screening device comprises: a cylindrical screen 4 and a coarse particle outlet 6; the cylindrical screen 4 penetrates through the execution device and moves along with the execution device; a coarse particle outlet 6 is provided at one end of the cylindrical screen 4. The cylindrical screen 4 is used for screening out fine material, and the coarse material outlet 6 is used for discharging coarse material with the diameter larger than the diameter of the mesh of the cylindrical screen 4. The coarse particle outlet 6 is arranged at the tail end of the cylindrical screen 4, i.e. the end close to the horizontal plane, and should not be too large and should be designed below the joint with the main shaft 5.

As a further improvement and complement to the above technical solution, the mesh shape of the cylindrical screen 4 may be one of a circle and a polygon. The shape of the mesh can be designed according to the shape of the material particles. The preferred mesh in the present invention is quadrilateral.

When the rotary screen works, materials are fed into the rotary screen through the feeding pipe, and impact the impeller 3, so that the impeller 3 rotates together with the main shaft 5 and the cylindrical screen 4 which are fixed together with the impeller. The fine particles in the material can fall through the mesh of the cylindrical screen 4 and down the screen, while the coarse particles remain in the cylindrical screen 4. Through the rotation of the cylindrical screen 4 and the declination angle of the cylindrical screen 4, coarse particles are discharged from a coarse particle outlet 6, and the separation of coarse and fine materials is realized.

The power for rolling the screening device comes from the kinetic energy of the materials, and no power device is required to be additionally arranged. In addition, coarse particles can be discharged from the coarse particle outlet 6, prolonging the maintenance cycle of the cylindrical screen 4.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An unpowered rotary screen is characterized by comprising a supporting device, an executing device and a screening device; the execution device is arranged on the supporting device, and the screening device penetrates through the execution device and acts simultaneously along with the execution device.

2. An unpowered trommel as claimed in claim 1 wherein the support means is a frame (1).

3. An unpowered trommel as claimed in claim 1 wherein said actuating means comprises: a bearing (2), a main shaft (5) and an impeller (3); the main shaft (5) is erected on the supporting device through the bearing (2); the impeller (3) is fixedly connected with the main shaft (5).

4. An unpowered trommel as claimed in claim 3 wherein there are two of said bearings (2) connected to respective ends of said main shaft (5).

5. An unpowered trommel as claimed in claim 3 wherein the main shaft (5) is angled at between 0 ° and 90 ° to the horizontal.

6. An unpowered trommel as claimed in claim 3 wherein the bearing (2) is one of a rolling bearing or a sliding bearing.

7. An unpowered trommel as claimed in claim 3 wherein the main shaft (5) is one of a solid shaft, a segmented shaft or an interrupted shaft.

8. An unpowered trommel as claimed in claim 3 wherein the impeller (3) has 2 to 8 blades.

9. An unpowered trommel as claimed in claim 1 wherein the screening means comprises: a cylindrical screen (4) and a coarse particle outlet (6); the cylindrical screen (4) penetrates through the execution device and moves along with the execution device; the coarse particle outlet (6) is arranged at one end of the cylindrical screen (4).

10. An unpowered trommel as claimed in claim 9 wherein the cylindrical screen (4) has a mesh shape which is one of circular or polygonal.