CN209956976U - A labyrinth sealing device for ring distributor - Google Patents

Abstract

The utility model provides a labyrinth-type sealing device for a ring-type distributing machine. The sealing cover is connected to a blanking pipe through a blanking hole, and a ring-shaped preventing dust from flying is arranged between the blanking pipe and the sealing cover. A sealing device, the annular sealing device includes an upper ring plate and a lower ring plate, the upper ring plate is fixedly connected to the blanking pipe, the lower ring plate is bolted to the sealing cover, and a number of evenly arranged rings are arranged under the upper ring plate A plurality of annular sealing plates II are arranged above the lower ring plate, and the annular sealing plate I and the annular sealing plate II are interspersed and connected. The plate II is interspersed and connected, that is, cross meshing. When the blanking pipe and the blanking hole of the sealing cover move relative to each other, the annular sealing plate I and the annular sealing plate II also cross each other, so as to play the role of wear resistance, leakage prevention and prevention. For the purpose of overflowing dust, the utility model has a simple structure, suppresses dust, and is environmentally friendly.

Description

A labyrinth sealing device for ring distributor

technical field

The utility model relates to the technical field of material transportation, in particular to a labyrinth sealing device of an annular distributor.

Background technique

The ring distributor is a material conveying equipment arranged on the top of a large silo, and is a material conveying and conveying equipment between the storage silo and the incoming material belt conveyor. The incoming material first passes through the belt conveyor on the coal conveying trestle on the top of the silo, and then enters the ring-type distributor on the top of the silo through the coal drop pipe. The ring type distribution machine is mainly composed of a closed belt conveyor, a traveling trolley device, a current collector, a slewing support device, a sealing cover, an inner ring sealing device, an outer ring sealing device, a ladder railing platform, a walking drive device, and an electrical control system. . The working principle of the ring cloth machine is: when the material falls from the inverted tee to the belt of the cloth machine, if the belt rotates to the right, the material will fall into the inner ring with the belt; when the belt rotates to the left, the material will follow the belt. drop into the outer ring with the belt. During the working process, due to the relative movement between the coal drop pipe and the feeding port at the top of the feeding trough of the closed belt conveyor, dust pollution is mainly caused by the belt feeding port, discharging port and the use of plow-type unloader or scraper-type unloader. The feeder discharges the coal on the upper belt into the blanking port of the distributing machine. Due to the large drop, a large amount of dust will be generated when the belt conveyor is separated from the coal. If the seal here is not tight, first of all, the dust will overflow at the interface, which will easily cause pollution to the environment and bring great harm to people's health. Second, dust scattered on the rotating part of the belt will accelerate the wear speed of the rotating shaft, causing early mechanical damage, oil leakage, etc., and dust falling on electrical components will cause poor contact between components and control failure. Therefore, in order to prevent environmental pollution and ensure the normal operation of the equipment, it is conventional to use the coal drop pipe to go deep into the feed port of the reversible airtight belt conveyor, or to minimize the gap between the drop hopper and the feed port of the reversible airtight belt conveyor, or to fix it with canvas on the feed port of the reversible airtight belt conveyor. The coal pipe moves relative to the distribution machine, and the canvas covers the coal drop port of the distribution machine, thus acting as a seal. However, after taking these measures, the canvas is easily damaged due to long-term wear or wind and sun.

Utility model content

The technical problem to be solved by the utility model is to avoid the leakage of dust from the blanking pipe at the blanking hole, which leads to environmental pollution.

The purpose of this utility model is to realize in the following way:

A labyrinth sealing device for an annular distributor includes a closed belt conveyor, the closed belt conveyor is composed of a sealing cover and a belt conveyor, the sealing cover is fixed above the belt conveyor, and the sealing cover is connected to the blanking material through a blanking hole There is an annular sealing device between the blanking tube and the sealing cover to prevent dust from flying up. The annular sealing device includes an upper ring plate and a lower ring plate, and the upper ring plate is fixedly connected with the blanking tube. The lower ring plate is connected with the sealing cover by bolts, a number of evenly arranged annular sealing plates I are arranged below the upper ring plate, and a number of evenly arranged annular sealing plates II are arranged above the lower ring plate. Shaped sealing plate II interspersed connection.

The blanking pipe is a three-way pipe.

There are discharge hoppers with sealing covers at both ends of the belt conveyor.

The upper ring plate, the lower ring plate, the annular sealing plate I and the annular sealing plate II are all steel plates.

The cross section of the upper ring plate is L-shaped.

Compared with the prior art, the utility model can connect the annular sealing plate I and the annular sealing plate II through interpenetration, that is, cross-engagement. When the blanking pipe and the blanking hole of the sealing cover move relatively, the annular sealing plate I and the annular The sealing plates II also cross each other, so as to achieve the purposes of wear resistance, leakage prevention and dust overflow prevention. The utility model has a simple structure, suppresses dust, and is environmentally friendly.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

FIG. 2 is an enlarged schematic view of A in FIG. 1 .

Among them, 1. protective cover, 2. blanking pipe, 3. belt conveyor, 4. annular sealing device, 5. blanking hole, 6. discharge hopper, 41. upper ring plate, 42. annular sealing plate I, 43. Lower ring plate, 44. Ring seal plate II.

Detailed ways

As shown in Figures 1 to 2, a labyrinth sealing device for a ring-type distributor includes a closed belt conveyor. The closed belt conveyor is composed of a sealing cover 1 and a belt conveyor 3, and the sealing cover 1 is fixed on the belt conveyor 3. Above, the sealing cover 1 is connected to the blanking pipe 2 through the blanking hole 5, and an annular sealing device 4 is provided between the blanking pipe 2 and the sealing cover 1 to prevent dust from flying up. The annular sealing device 4 includes The upper ring plate 41 and the lower ring plate 43, the upper ring plate 41 is fixedly connected with the blanking pipe 2, the lower ring plate 43 is connected with the sealing cover 1 by bolts, and a number of annular sealing plates are arranged evenly under the upper ring plate 41 I42, above the lower ring plate 43 are provided a plurality of evenly arranged annular sealing plates II44, and the annular sealing plates I42 are interpenetratingly connected with the annular sealing plates.

The blanking pipe 2 is a three-way pipe, which is convenient for changing materials of different specifications.

A discharge hopper 6 with a sealing cover 1 is arranged at both ends of the belt conveyor 3 to prevent dust overflow.

The upper ring plate 41, the lower ring plate 43, the annular sealing plate I42 and the annular sealing plate II44 are all steel plates, which are corrosion-resistant, wear-resistant and have a long service life.

The cross section of the upper ring plate 41 is L-shaped.

The working process of the present utility model is as follows:

The material enters the belt conveyor 3 through the blanking pipe 2, the upper ring plate 41 is welded on the side wall of the blanking pipe 2, at least two annular sealing plates I42 are welded below the upper ring plate 41, and the lower ring plate 43 is bolted to the sealing cover 1. At least two annular sealing plates II44 are welded on the upper annular plate 41, one annular sealing plate II44 is inserted between two adjacent annular sealing plates I42, and at the same time, two adjacent annular sealing plates II44 are inserted An annular sealing plate I42 is inserted between them, that is, the annular sealing plate I42 and the annular sealing plate II44 are cross-engaged. The corrosion resistance of the steel plate is better than that of the rubber, which is wear-resistant, leak-proof and suppresses dust flying.

The above are only the preferred embodiments of the present utility model. It should be pointed out that for those skilled in the art, some changes and improvements can be made without departing from the overall concept of the present utility model. These should also be regarded as The scope of protection of the utility model.

Claims (5)

1. A labyrinth sealing device for an annular distributor, comprising a closed belt conveyor, characterized in that: the closed belt conveyor is composed of a sealing cover and a belt conveyor, and the sealing cover is fixed above the belt conveyor, and the sealing cover passes through the belt conveyor. The blanking hole is connected to the blanking pipe, and a ring-shaped sealing device to prevent dust from flying is arranged between the blanking pipe and the sealing cover. The ring-shaped sealing device includes an upper ring plate and a lower ring plate. The blanking pipe is fixedly connected, the lower ring plate is bolted to the sealing cover, a number of evenly arranged annular sealing plates I are arranged under the upper ring plate, and a number of evenly arranged annular sealing plates II are arranged above the lower ring plate. The shape sealing plate I and the annular sealing plate II are interspersed and connected. 2 . The labyrinth sealing device of the annular distributor according to claim 1 , wherein the blanking pipe is a three-way pipe. 3 . 3 . The labyrinth sealing device of the annular distributor according to claim 1 , wherein a discharge hopper with a sealing cover is provided at both ends of the belt conveyor. 4 . 4 . The labyrinth sealing device of the ring type distributor according to claim 1 , wherein the upper ring plate, the lower ring plate, the annular sealing plate I and the annular sealing plate II are all steel plates. 5 . 5. The labyrinth sealing device of the ring distributor according to claim 1, wherein the cross section of the upper ring plate is L-shaped.

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