Self-dust falling material guide groove based on Tesla valve structure

Abstract

The application discloses a kind of unpowered self dust fall material guide groove, including the material guide groove of lower opening, the upper wall of material guide groove is material guide groove cover, and the feed end of material guide groove cover is equipped with feed port, and material guide groove inside is equipped with vortex member, and vortex member is fixed in the lower surface of material guide groove cover, and its lower is material passage, and vortex member includes an inlet splitter, with two parallel vortex components, vortex component is arranged according to the axial direction of material guide groove, and the two rows of vortex components are staggered arrangement.Relative to prior art, the technical effect of the application is that the horizontal vortex area is provided, the airflow wind is avoided to blow on the material downward, dust is not easy to raise, and the dust fall effect is better.

Description

TECHNICAL FIELD

[0001] The application relates to the field of conveyors, in particular to a non-powered self-dust-reducing material guide groove based on a Tesla valve structure. BACKGROUND

[0002] It is known that a belt conveying device is an indispensable material transfer conveying device in the industry at present; with the increasingly high requirement on the environmental protection performance of the device, the material guide groove is one of important dust raising points on the conveyor, and reducing dust raising at the place becomes an important research topic in the conveyor industry.

[0003] Therefore, a vortex dust reduction device has been provided, and the patent document with the application publication number CN110775662A can be referred to.

[0004] However, the vortex forming accessory of the device is a dustproof curtain 10, and the working principle is that when the airflow wind hits the dustproof curtain 10, the airflow wind is rolled up to form a vortex, the airflow wind changes the direction to form a vortex, and if the airflow wind is mostly turned upward to form a vortex, the dust reduction effect is good. However, a considerable part of the airflow wind is turned downward and blows on the material, which is more likely to raise dust. Moreover, the probability of the airflow wind turning downward and upward is half.

[0005] In general, the dust reduction effect of the document is not good, and therefore, multiple layers of seals need to be arranged to prevent dust diffusion. SUMMARY

[0006] The technical problem to be solved by the application is how to design a non-powered self-dust-reducing material guide groove with good dust reduction effect.

[0007] The technical scheme of the application is as follows:

[0008] A non-powered self-dust-reducing material guide groove comprises a material guide groove with an opening at the bottom, the upper wall of the material guide groove is a material guide groove cover plate, the feeding end of the material guide groove cover plate is provided with a feeding port, a vortex member is arranged in the material guide groove, the vortex member is fixed to the lower surface of the material guide groove cover plate, the lower part of the vortex member is a material channel, the vortex member comprises an inlet flow distribution plate, two rows of parallel vortex assemblies, the vortex assemblies are arranged in the axial direction of the material guide groove, and the two rows of vortex assemblies are arranged in a staggered manner; each row of vortex assemblies comprises a plurality of vortex units, each vortex unit comprises a side baffle and an arc-shaped baffle, the side baffle is fixed to the edge of the material guide groove, the convex surface of the arc-shaped baffle faces the discharging direction of the material guide groove, a section of the arc-shaped baffle extends to the edge of the material guide groove to form a middle baffle, the middle baffle is parallel to the side baffle, and a first flow distribution channel is formed between the middle baffle and the side baffle, the other side of the middle baffle is a second flow distribution channel, and the rear of the arc-shaped baffle is a vortex area.

[0009] The windward surface of the inlet flow distribution plate is a smooth curved surface.

[0010] The leeward surface of the entrance splitter plate is provided with a concave surface.

[0011] The included angle between the side baffle and the material guide groove is °.

[0012] The upper wall where the vortex area is located is provided with an exhaust pipe, the exhaust pipe enables the inside and outside of the material guide groove to be communicated, the exhaust pipe is arranged on the upper and lower surfaces and the axis of the exhaust pipe passes through the center of the arc-shaped baffle, two filter elements are arranged on the exhaust pipe, and the filter element comprises a plurality of layers of filter cotton.

[0013] The dustproof curtain is a rubber strip capable of generating electrostatic adsorption effect.

[0014] A plurality of dustproof curtains are arranged at the back of the vortex member, and the dustproof curtains are fixed on the cover plate of the material guide groove.

[0015] Compared with the prior art, the technical effect of the present application is that the horizontal vortex area is arranged, the airflow wind is prevented from being blown downward on the material, dust is not easily raised, and the dust reduction effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic diagram of the present application.

[0017] Figure 2 is Figure 1 a top view schematic diagram. DETAILED DESCRIPTION

[0018] The present application will be described in detail below in combination with the drawings and specific embodiments.

[0019] As Figures 1-2 , a non-powered self-dust-reducing material guide groove comprises a material guide groove 10 with an opening at the bottom, the upper wall of the material guide groove 10 is a cover plate 11 of the material guide groove, the feeding end of the cover plate 11 of the material guide groove is provided with a feeding port 15, the inside of the material guide groove 10 is provided with a vortex member 28, the vortex member 28 is fixed on the lower surface of the cover plate 11 of the material guide groove, the lower part of the vortex member 28 is a material passage, and a plurality of dustproof curtains 14 are arranged at the back of the vortex member 28, and the dustproof curtains 14 are fixed on the cover plate 11 of the material guide groove.

[0020] The vortex member 28 comprises an entrance splitter plate 20 and two rows of parallel vortex assemblies, the vortex assemblies are arranged according to the axial direction of the material guide groove 10, and the two rows of vortex assemblies are arranged alternately.

[0021] Each row of vortex assemblies comprises a plurality of vortex units, each vortex unit comprises a side baffle 21 and an arc-shaped baffle 22, the side baffle 21 is fixed on the edge of the material guide groove 10, the convex surface of the arc-shaped baffle 22 faces the discharging direction of the material guide groove 10, a section of the arc-shaped baffle 22 extends to the edge of the material guide groove 10 to form an intermediate baffle 23, the intermediate baffle 23 is parallel to the side baffle 21, and a first split passage 24 is formed between the intermediate baffle 23 and the side baffle 21, the other side of the intermediate baffle 23 is a second split passage 25, and the back of the arc-shaped baffle 22 is a vortex area 26.

[0022] In order to facilitate the flow, the windward surface 201 of the entrance splitter 20 is a smooth curved surface.

[0023] In order to facilitate the formation of vortex, the leeward surface of the entrance splitter 20 is provided with a concave surface 202, which can increase the space of the first vortex unit vortex area 26, because the vortex area 26 is relatively close to the entrance splitter 20.

[0024] In order to facilitate the flow, the angle between the side baffle 21 and the material guide groove 10 is 30°.

[0025] When working, the air pressure of the vortex area 26 is higher than that of other positions, and the size of the air pressure changes continuously, which leads to noise and unsafe factors. Therefore, the upper wall 11 where the vortex area 26 is located is provided with an exhaust pipe 12, which can communicate the inside and outside of the material guide groove 10, and the exhaust pipe 12 is arranged on the upper and lower walls and the axis thereof passes through the center of the arc-shaped baffle 22. Two filter elements 13 are arranged on the exhaust pipe 12, and the filter element 13 comprises multiple layers of filter cotton.

[0026] The dustproof curtain 14 is a rubber strip that can produce electrostatic adsorption effect.

[0027] The working principle is as follows:

[0028] Before use, the material guide groove is installed above the conveying belt, and the two sides and the rear end are tightly attached to the conveying belt.

[0029] When in use, for example, Figure 2 When the material 90 enters the material guide groove from the inlet 15, a large amount of dust-containing airflow 81 (hereinafter referred to as airflow) will be brought in. The airflow 81 is blocked by the windward surface 201 of the entrance splitter 20, and is divided into two parts, two airflows A 82, which enter each row of vortex assemblies respectively. Because the cross-sectional area at the splitter 20 becomes smaller, the airflow A 82 accelerates through it.

[0030] After entering each row of vortex assemblies, it passes through the first vortex unit, specifically: the airflow A 82 is divided into straight airflow 84 and inclined airflow 83 by the middle baffle 23, and the inclined airflow 83 forms a vortex airflow 87 by the flow guide of the arc-shaped baffle 22. At this time, the dust carried in the airflow will hit the arc-shaped baffle 22 and its speed will instantaneously decrease, and finally rely on gravity to fall on the material 90 on the conveying belt and be conveyed to the downstream together. At the same time, part of the airflow will be discharged outside along the exhaust pipe 12, because the filter element 13 is provided, the dust is filtered and will not be discharged outside.

[0031] Then it successively passes through multiple vortex units, the process is described above.

[0032] In each row of vortex assembly, most of the air flow passes through the vortex to separate dust and is discharged through the exhaust pipe. After exiting from each row of vortex assembly, low-speed air flow 85 is blocked by the multi-stage dust curtain, and the dust is again adsorbed onto the dust curtain. Finally, the air 86 that exits is substantially free of dust, and substantially realizes unpowered dust reduction.

[0033] Other contents can be seen from the prior art.

[0034] The above only describes the preferred embodiments of the present application. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present application, and these should also be considered as the protection scope of the present application.

Claims

1. A self-dust-lowering and self-guiding chute without power, comprising a chute (10) with an open bottom, an upper wall of the chute (10) being a chute cover plate (11), a feeding end of the chute cover plate (11) being provided with a feeding port (15), and the chute (10) being internally provided with a vortex member (28) fixed to a lower surface of the chute cover plate (11) and having a material passage below it, characterized in that: the vortex member (28) comprises an inlet splitter plate (20) and two rows of parallel vortex assemblies arranged in the axial direction of the chute (10) and staggered; each row of vortex assemblies comprises a plurality of vortex units, each vortex unit comprising a side baffle (21) fixed to an edge of the chute (10) and an arc-shaped baffle (22) with a convex surface facing the discharging direction of the chute (10), the arc-shaped baffle (22) extending to the edge of the chute (10) to form a middle baffle (23) parallel to the side baffle (21) and having a first shunt passage (24) between the side baffle (21) and the middle baffle (23), and a second shunt passage (25) on the other side of the middle baffle (23), and a vortex area (26) behind the arc-shaped baffle (22); the chute cover plate (11) where the vortex area (26) is located is provided with an exhaust pipe (12) allowing the inside and outside of the chute (10) to be connected, the exhaust pipe (12) being arranged vertically and having an axis passing through the center of the arc-shaped baffle (22); a plurality of dustproof curtains (14) are arranged behind the vortex member (28) and fixed to the chute cover plate (11); when the material (90) enters the chute from the feeding port (15), a large amount of dust-containing airflow (81) is brought in, the large amount of dust-containing airflow (81) is blocked by a windward surface (201) of the inlet splitter plate (20) and is shunted into two parts, i.e., two airflows A (82), which enter each row of vortex assemblies; after entering each row of vortex assemblies, the airflow A (82) is shunted by the middle baffle (23) into a straight airflow (84) and an oblique airflow (83), the oblique airflow (83) forms a vortex airflow (87) by being guided by the arc-shaped baffle (22), at this time, the dust carried in the airflow collides with the arc-shaped baffle (22) and its speed is instantaneously reduced, and finally, the dust is conveyed to the material (90) on the conveying belt and is conveyed to the downstream together; meanwhile, part of the airflow is discharged along the exhaust pipe (12); in each row of vortex assemblies, most of the airflow is separated from the dust by vortex separation and is discharged through the exhaust pipe, and after being discharged from each row of vortex assemblies, the airflow forms a low-speed airflow (85) which is blocked by the multi-stage dustproof curtains and the dust is again adsorbed on the dustproof curtains. The windward surface (201) of the inlet splitter plate (20) is a smooth curved surface. The leeward surface of the inlet splitter plate (20) is provided with a concave surface (202). The included angle between the side baffle (21) and the chute (10) is 30°. Two filter elements (13) are arranged on the exhaust pipe (12), and the filter element (13) comprises a plurality of layers of filter cotton. ​ ​ ​ 2. The self-dusting, non-powered chuting apparatus of claim 1, wherein: ​ 3. The self-dropping dust-laden chute of claim 2, wherein: ​ 4. The self-dropping dust-free chuting system of claim 3, wherein: ​ 5. The self-dropping dust-free chuting system of claim 4, wherein: ​ 6. The self-dropping dust-free chuting system of claim 5, wherein: The dustproof curtain (14) is a rubber strip capable of generating electrostatic adsorption effect.

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