CN204194267U - A kind of classified screening device of lightweight fine particle - Google Patents

Abstract

A grading and screening device that can be used for light and fine particles includes a machine body, a feeding hopper, a multi-stage cylindrical sieve, a driving shaft structure, and several parts of a collecting device. The screen is made into a cylindrical structure, and the inside and outside of the screen of different specifications are combined together to achieve screening and separation by rotating motion. At the same time, the driving shaft structure can make the cylindrical sieve structure vibrate slightly up and down, so that the particles are evenly distributed in the cylindrical sieve. When the screening is completed, the body can be tilted to the right and down, and the one-way valve of the collection device will automatically open, and the screened particles will enter the collection container. In this way, a sufficient amount of particles of various specifications can be screened out at one time, and the screening efficiency is greatly improved.

Description

A classifying and screening device for light and fine particles

technical field

The utility model relates to a classifying and screening device for light and fine particles.

Background technique

In enterprise production and scientific research in universities, it is often necessary to classify and screen metal or non-metal particles. The usual method is to use different flat screens to screen layer by layer. This method is time-consuming and laborious, and when screening light particles, Light particles are easy to fly and difficult to screen. Based on this, a mechanical device is designed for the classification and screening of light and fine particles.

Utility model content

The utility model aims to design a classifying and screening device for light and fine particles, which can conveniently and quickly classify the fine particles. It overcomes the time-consuming and labor-intensive shortcomings of traditional screening methods and can screen light particles. The technical scheme adopted is as follows:

A grading and screening device that can be used for light and fine particles includes a machine body, a feeding hopper, a multi-stage cylindrical sieve, a driving shaft, and several parts of a collecting device. The screen is made into a cylindrical structure, and the inside and outside of the screen of different specifications are combined together to achieve screening and separation by rotating motion.

The device adopts the crankshaft as the driving shaft, and the belt pulley at the shaft end is connected with the motor. While the crankshaft drives the cylindrical sieve to rotate, it can make the cylindrical sieve structure move like a cone, so that the particles can be evenly distributed in the horizontal direction in the cylindrical sieve.

The machine body is located directly above the middle part of the cylindrical sieve, and there is an observation port made of transparent material to judge whether the screening process is completed.

A particle collection device is attached to the right end of the cylindrical sieve. The structure of the collection device is similar to that of the cylindrical sieve. It is connected with the cylindrical sieve by threads. There is a valve on the interface between the two, which can be automatically opened and closed under the action of gravity. The lower right corner of the body is equipped with a hinge structure, which can make the body turn over from a horizontal state to tilt to the lower right. When the screening is completed, the screened particles will enter the collection device through the valve by tilting the body, and then add new particles to continue working.

The utility model has the following advantages: it realizes the mechanized operation and overcomes the time-consuming and labor-intensive shortcomings of the traditional screening method. When the device screens, the particles are fully screened under the action of centrifugal force, and the working efficiency is high. Moreover, it can screen different metal or non-metal particles, and has a good screening effect on light and fine particles, and has strong adaptability. The device is designed to be easily disassembled, can be disassembled and cleaned relatively simply, and has a long service life. At the same time, because the whole body is relatively closed, dust is reduced and it is more environmentally friendly.

Description of drawings

Fig. 1: structural representation of the utility model;

Figure 2: Schematic diagram of the drive shaft structure;

Figure 3: Schematic diagram of the interface and valve of the collection device, where (a) schematic diagram of the interface of the collection device, (b) schematic diagram of the valve.

Symbol Description

1. Driving shaft, 2. Multi-stage cylindrical sieve structure, 3. Body, 4. Collection device, 5. Feeding hopper, 6. Spherical hinge structure, 7. Hinge structure 8. Observation port 9. Primary cylindrical sieve 10. transmission wheel 11. valve 12. groove.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described:

As shown in Figure 1, the utility model comprises driving shaft 1, multistage cylindrical screen 2, body 3, collecting device 4 and feed hopper 5. Drive shaft left end is provided with drive wheel, links to each other with motor by belt. It is advisable to keep the distance between the multi-stage cylindrical sieves at 20 cm to 30 cm. The collecting device is connected with the cylindrical sieve by threads, and a one-way valve is arranged between them.

When in use, the granular material is added to the innermost sieve through the feed hopper 5, and then the motor multistage cylindrical sieve is started to rotate. Fig. 2 is a schematic diagram of the driving shaft 1, which is a crankshaft structure, and the first-stage cylindrical screen 9 is connected to it. The left end of the driving shaft is the drive wheel 10, which is connected to the motor through a belt. The right end of the driving shaft is two freely rotatable spherical hinges 6 connected together. One spherical hinge is connected to the shaft, and the support of the other spherical hinge is fixed on the body. . In this way, the structure of the grading cylindrical sieve can be rotated like a cone, that is, when the cylindrical sieve is rotating, it can vibrate slightly up and down in the horizontal direction, so that the particles can be evenly distributed in the cylindrical sieve. . The body 3 has an observation port 8 directly above the cylindrical sieve to judge whether the screening process is completed. The lower right corner of the body 3 has a hinge structure 7, and when the screening process is completed, the body can be tilted to collect the particles after screening and grading.

The interface between the collection device and the cylindrical sieve is shown in Figure 3(a), and the collection container is not shown. The collection device is similar in structure to the cylindrical sieve, and can be connected with the cylindrical sieve by threads, and has a valve 11 above it. The structural diagram of the valve 11 is shown in Figure 3(b), fixed by a pin structure (rotatable), and a rubber ring is provided in the groove 12 on the edge of the valve, so that the valve can be closed when the cylindrical sieve rotates or slightly vibrates. At the same time, ensure that its sealing is good; when the body tilts to the right and down, the valve will automatically open under the action of gravity, and the properly rotated cylindrical sieve structure can make the screened particles completely enter the collection container. In this way, a sufficient amount of particles of various specifications can be screened at one time, which greatly improves the screening efficiency.

Claims (4)

1. a classified screening device for lightweight fine particle, comprises body, feed hopper, multistage cylindricality sieve, driving shaft and a few part of gathering-device, is characterized in that: screen cloth is all made into cylindrical structural, be nested inside and outside the screen cloth of different size and combine, realize screening with rotary motion and be separated.

2. the classified screening device of lightweight fine particle according to claim 1, it is characterized in that its driving shaft is the up-down vibration producing slight amplitude while crankshaft structure can make cylindricality sieve rotate, thus particle horizontal direction in cylindricality sieve is evenly distributed.

3. the classified screening device of lightweight fine particle according to claim 1, is characterized in that right-hand member at cylindricality sieve is with particle collection device, and gathering-device to sieve with cylindricality with screw thread and is connected, and is provided with valve, and it can open closedown under gravity automatically.

4. the classified screening device of lightweight fine particle according to claim 1, it is characterized in that hinge arrangement is equipped with in the body lower right corner, body can be made to be turn to tilt to the right by level, the valve of gathering-device is opened under gravity automatically, makes the good particle of screening enter gathering-device.