CN205518574U - High -efficient grader - Google Patents

Abstract

The utility model relates to the field of grain processing machinery, and particularly discloses a high-efficiency classifier. Its base is equipped with several stages of screens vibrated by eccentric vibrating motors. The outlet end of the screens is equipped with a floating and sinking dust collector, which is connected to a dust collection device. The utility model has large output, good grading effect, simple design, small volume, light weight, and low power consumption. Because each discharge port is equipped with a floating and sinking dust collector, the obtained product can be dust-free and micro-skinned. High purity, clean and smooth product. The machine is small in size and can be used alone or in series with other equipment in a large unit to form a production line. Therefore, the utility model has a classification effect that cannot be achieved by traditional equipment. The products obtained are dust-free, micro-skinned, and have no smaller particles of the same grade, so the obtained products can really achieve the effect of cleanness and uniform size.

Description

A high-efficiency classifier

(1) Technical field

The utility model relates to the field of grain processing machinery, in particular to a high-efficiency classifier.

(2) Background technology

Domestic classifiers are generally divided into two categories: vibratory classifiers and rotary classifiers. In the field of grain processing machinery, domestic grain grading machines generally have a series of problems such as less grading, poor grading effect, unreasonable machine design, and difficult to handle a large amount of dust. Less grading will undoubtedly increase the number and intensity of labor, and consume a lot of electric energy and labor; the grading effect is poor, and there are particles of other sizes in the grading products, especially tiny particles, which make it difficult to meet the grading standards that people originally pursued; the design of traditional classifiers is not Reasonable, the screen angle is not optimized enough, the screens are connected by connecting rods or transfer shafts, and the structure is complicated and redundant, which not only makes the classifier expensive, but also wastes various resources invisibly; untreated dust microskins make The operating environment is dirty and the dust pollution is serious, resulting in a large amount of dust attached to the surface of the classified products, which is seriously covered with dust, dull and poor in quality.

(3) Contents of the invention

In order to make up for the defects of the prior art, the utility model provides a high-efficiency classifier with simple structure and good classification effect.

The utility model is achieved through the following technical solutions:

A high-efficiency classifier, including a base, characterized in that the base is connected to the screen box through a spring, the bottom of the screen box is provided with an eccentric vibrating motor, and the screen box is provided with several layers of inclined screens from top to bottom , the sieve holes of the sieve decrease sequentially from top to bottom, a hopper is provided under the bottom sieve, the sieve and hopper are provided with a discharge port, and the upper end of the sieve box is provided with a feed port, so The feed inlet is located above the uppermost screen, the feed inlet is connected to a PVC transparent steel wire hose, and a floating-sink type dust collector is arranged at the discharge port, and the floating-sink type dust collector is fixed on the base, and the floating-sink type dust collector The type dust collector includes a windshield, the upper end of the windshield is provided with an air outlet, the lower end of the windshield is provided with a blanking channel equal to the number of discharge ports, and the middle section of the blanking channel is provided with a blanking opening. The discharge port corresponds to the discharge port one by one, and the discharge port is located above the discharge port. In the discharge channel, there are two baffles arranged staggered up and down. The baffles are located below the discharge port. The tuyere is connected to the fan through the air duct, and the fan is connected to the dust collecting device.

The inclination angle of the screen and the hopper is 5°-15°.

All adjacent screens and the bottom screen and the hopper are equidistant and parallel to each other.

The dust collecting device includes an air outlet bag and a dust collector which are sequentially connected with a fan.

A limit frame is arranged on the base, and the screen box is located in the limit frame.

The beneficial effects of the utility model are:

The utility model has the advantages of large output, good grading effect, simple design, small volume, light weight, and low power consumption. Because each discharge port of the obtained product is equipped with a floating and sinking dust collector, the obtained product has no dust, micro skin, and high purity. Tall, clean and polished product. The machine is small in size and can be used alone or in series with other equipment to form a large-scale production line. Therefore, the present invention has a grading effect that cannot be achieved by traditional equipment, and the products obtained are dust-free, micro-skinned, and have no smaller particles of the same grade, so the obtained products can truly achieve the effect of cleanness and uniform size.

(4) Description of drawings

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

Fig. 1 is a schematic diagram of the shaft side structure of the utility model;

Fig. 2 is a schematic cross-sectional structure diagram of the screen box part.

In the figure, 1 base, 2 eccentric vibration motor, 3 spring, 4 screen box, 5 feed inlet, 6 PVC transparent steel wire hose, 7 screen, 8 hopper, 9 discharge port, 10 limit frame, 11 wind cover , 12 blanking channels, 13 blanking ports, 14 baffles, 15 air ducts, 16 fans, 17 air outlet bags, 18 dust collectors, 19 fixed frames, 20 air outlets.

(5) Specific implementation methods

Accompanying drawing is the specific embodiment of the utility model. As shown in Figures 1 to 2, this high-efficiency classifier includes a base 1, a spring 3 on the base 1 is connected to a screen box 4, an eccentric vibration motor 2 is installed at the bottom of the screen box 4, and the eccentric vibration motor 2 and spring 3 serve as a screen The box 4 provides a vibration power source to make the screen box 4 vibrate with small amplitude and high frequency, so that the particles can obtain enough kinetic energy and inertia. In order to prevent the screen box 4 from moving greatly on the horizontal plane, a limit frame is installed on the base 1 10. The screen box 4 is located in the limit frame 10; the screen box 4 is provided with three layers of inclined screens 7 from top to bottom, and the screen holes of the screens 7 decrease sequentially from top to bottom. A hopper 8 is provided, and the size of the hopper 8 is the same as that of the screen 7, and the adjacent screens 7 and between the bottom screen 7 and the hopper 8 are arranged in parallel, equidistant, and inclined, and the angle of inclination is 5°～ between 15°; the screen box 4 is provided with a feed inlet 5, the feed inlet 5 is located above the uppermost screen 7, and the feed inlet 5 is connected to a PVC transparent steel wire hose 6; the screen 7 and the hopper 8 are both A discharge port 9 is provided, and a floating-sink type dust collector is arranged at the discharge port 9. The floating-sink type dust collector is fixed on the base 1 through a fixing frame 19. The floating-sink type dust collector includes a wind cover 11, and the opening of the wind cover 11 faces downward. The lower end of the windshield 11 is connected to the blanking channel 12, and the middle section of each blanking channel 12 is provided with a blanking port 13, and the blanking port 13 is inclined outwards. One-to-one correspondence, the discharge port 9 is located above the discharge port 13, and two baffles 14 arranged up and down are arranged in a staggered manner in the discharge channel 12. The baffles 14 are located below the discharge port 13 and are horizontally arranged. An air outlet 20 is provided, the air outlet 20 is connected to the air duct 15, the air duct 15 is connected to the fan 16, the fan 16 is connected to the dust collection device, the dust collection device includes an air outlet bag 17 connected to the fan 16, and the lower end of the air outlet bag 17 is connected to the dust collector Device 18.

The working process is as follows: the material enters the screen box 4 from the feed port 5 through the PVC transparent steel wire hose 6, and falls on the uppermost screen 7. Under the vibration of the eccentric vibrating motor 2, the coarser primary particles pass through this The discharge port 9 of the first layer enters the blanking channel 12, and other materials enter the next layer of screen 7; after the primary particles enter the blanking channel 12, due to the existence of the baffle plate 14, there will be a short period of time on the baffle plate 14 During this period of residence time, the surface of the particles is cleaned by the wind to realize the separation of dust and particles; it and the material repeat the above action in the next layer of screen 7 until the smallest particles fall on the hopper 8, and then Falling from the hopper 8 into the blanking channel 12, the separation of dust and particles is realized step by step. Because in this step-by-step screening process, the angle between the screen 7 and the horizontal plane is maintained at 5°~15°, the material can be completely screened and quickly fall into the blanking channel 12 under the action of gravity, greatly The work efficiency is greatly improved, and the dust will be driven by the fan 16 to reach the dust collecting device through the air duct 15; the particles of all levels can be packed into bags at the outlet of the lower end of the blanking channel 12 or enter the next production unit.

Except for the technical features described in the description, the rest of the technical features are known to those skilled in the art.

Claims (5)

1. a highly effective classifier, including base (1), is characterized in that, described base (1) connects screen box by spring (3) (4), bottom described screen box, it is provided with eccentric vibrating motor (2), in described screen box (4), is provided with the several layers of screen cloth tilted from top to bottom (7), the sieve aperture of described screen cloth (7) is sequentially reduced from top to bottom, and the lower section of orlop screen cloth (7) is provided with hopper (8), described screen cloth And hopper (8) is provided with discharging opening (9) (7), described screen box (4) upper end is provided with charging aperture (5), and described charging aperture (5) is positioned to be gone up most The top of layer screen cloth (7), described charging aperture (5) connects PVC transparent wired hose (6), is provided with the formula of drifting along removes at discharging opening (9) place Dirt device, described in the formula cleaner unit that drifts along be fixed on base (1), described in the formula cleaner unit that drifts along include fan housing (11), described fan housing (11) upper end is provided with air outlet (20), and described fan housing (20) lower end is provided with the blanking channel (12) equal with discharging opening (9) quantity, The stage casing of described blanking channel (12) has feed opening (13), described feed opening (13) and discharging opening (9) one_to_one corresponding, and goes out Material mouth (9) is positioned at feed opening (13) top, is provided with about the two pieces baffle plates being crisscross arranged (14) in blanking channel (12), described Baffle plate (14) is positioned at feed opening (13) lower section, and described air outlet (20) place passes through air channel (15) connecting fan (16), described blower fan (16) dust collect plant is connected.

Highly effective classifier the most according to claim 1, is characterized in that, the angle of inclination of described screen cloth (7) and hopper (8) is 5 °～15 °.

Highly effective classifier the most according to claim 2, is characterized in that, between all adjacent screen clothes (7) and bottom Mutual equidistant parallel between screen cloth (7) and hopper (8).

Highly effective classifier the most according to claim 1, is characterized in that, described dust collect plant includes connecting successively with blower fan (16) The air-out cloth bag (17) connect and dust arrester (18).

5. according to highly effective classifier described in any one of Claims 1-4, it is characterized in that, described base (1) is provided with limitting casing (10), described screen box (4) is positioned at limitting casing (10).