A screw conveyor impurity removal and air closing device

Abstract

The present invention relates to a screw conveyor impurity discharge and air-sealing device, which comprises an impurity discharge pipe, a sealing cover plate arranged in the impurity discharge pipe, and an outer sealing cover plate arranged on the discharge end of the impurity discharge pipe; the shape of the inner sealing cover plate corresponds to the radial cross-section of the impurity discharge pipe, and its upper end is movably connected to the top inner side wall of the impurity discharge pipe; the present invention provides an inner sealing cover plate in the impurity discharge pipe, which can promote light impurities to gather at the inner sealing cover plate, so that the inside of the pipe body is filled with light impurities to achieve a sealing effect, and then the inner sealing cover plate will be opened for external transportation, and at the same time, an outer sealing cover plate is provided at the discharge end to ensure the sealing effect when the equipment is just operating without impurities.

Description

Technical Field

[0001] The invention relates to a debris removal and air-blocking device for a screw conveyor. Background Art

[0002] When the screw conveyor is used in conjunction with a cyclone dust collector, the existing screw conveyor outlet will experience a backflow phenomenon due to the negative pressure state in the cyclone dust collector cavity, causing light impurities and dust to flow back and affect the dust removal effect. Although the existing screw conveyor outlet is equipped with an air-tight cover with a counterweight, during actual operation, due to the small amount of impurities, the lower side of the cover will be lifted up by a small amount of impurities, and gaps will appear on the upper side of the cover, resulting in air leakage, and normal impurity discharge cannot be formed. The pipe body of the existing air-tight screw conveyor outlet is circular, and only one air-tight cover can be set at the outlet end. When the amount of impurities is small, it cannot fill the circular pipe, which will cause air leakage. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a screw conveyor impurity removal and air-locking device with good air-locking effect.

[0004] The technical solution adopted by the present invention is: a screw conveyor impurity discharge and air-locking device, which includes an impurity discharge pipe, an inner sealing cover plate arranged in the impurity discharge pipe, and an outer sealing cover plate arranged on the discharge end of the impurity discharge pipe; the shape of the inner sealing cover plate corresponds to the radial cross-section of the impurity discharge pipe, and its upper end is movably connected to the top inner wall of the impurity discharge pipe.

[0005] Furthermore, the impurity removal pipe is square.

[0006] Furthermore, the upper end of the inner sealing cover plate is flexibly connected to the inner wall of the impurity exhaust pipe.

[0007] Furthermore, the impurity discharge pipe is arranged at an angle, with the lower side end being the feed end connected to the screw conveyor, and the higher side end being the discharge end.

[0008] Furthermore, the upper end of the outer sealing cover plate is movably connected to the top of the discharge port at the discharge end.

[0009] Furthermore, the outer sealing cover plate is connected to the discharge port via a hinge.

[0010] Furthermore, the discharge port is arranged at an angle, and its bottom gradually tilts upward toward a side close to the impurity discharge pipe, and the outer sealing cover plate contacts the discharge port under the action of its own weight.

[0011] The positive effects of the present invention are as follows: an inner sealing cover is provided in the impurity discharge pipe, which can cause light impurities to gather at the inner sealing cover, so that the inside of the pipe body is filled with light impurities to achieve a sealing effect. Only then will the inner sealing cover be opened for external transportation. At the same time, an outer sealing cover is provided at the discharge end to ensure the sealing effect when the equipment is just operating without impurities.

[0012] The inclined impurity discharge pipe is also conducive to the accumulation of light impurities in the impurity discharge pipe. The outer sealing cover plate can be pushed open only when the inside is full, and there will be no air leakage during discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the present invention;

[0014] Figure 2 It is a cross-sectional view of the present invention;

[0015] Figure 3 It is a schematic diagram of the cooperation between the present invention and the screw conveyor. DETAILED DESCRIPTION

[0016] As attached Figure 1-3 As shown, the present invention comprises an inclined impurity discharge pipe 1, whose lower side end is a feed end 4, and whose upper side end is a discharge end 5. A plurality of inner sealing cover plates 3 are arranged in the impurity discharge pipe 1, and an outer sealing cover plate 2 is arranged on the discharge end 5 of the impurity discharge pipe 1.

[0017] The interior of the impurity discharge pipe 1 is in a square shape, and the inner sealing cover plate 3 is also in a corresponding square shape. The top of the inner sealing cover plate 3 is connected to the top of the inner impurity discharge pipe 1 through a flexible connection, so that the bottom end can move in the impurity discharge pipe 1. The inner sealing cover plate 3 is tilted in the impurity discharge pipe 1. Specifically, it is at an obtuse angle to the material transportation direction in the impurity discharge pipe 1. When light impurities appear in the impurity discharge pipe 1, they will first be blocked by the inner sealing cover plate 3 and accumulate on the inner side of the inner sealing cover plate 3 (that is, close to the side of the light impurities). When the accumulation reaches a certain extent, the thrust generated by the light impurities can open the inner sealing cover plate 3 and continue to be transported forward. The blocking effect of multiple inner sealing cover plates 3 can make the light impurities reach the discharge end 5. When the entire impurity discharge pipe 1 is filled, the impurities can effectively avoid air leakage when the outer sealing cover plate 2 is opened for impurity discharge.

[0018] At the same time, the inclined impurity discharge pipe 1 also helps light impurities to accumulate inside the impurity discharge pipe 1, and they will be pushed forward only after they accumulate to a certain extent.

[0019] As attached Figure 1 As shown, the outer sealing cover plate 2 is arranged at the discharge port of the discharge end 5, and its top is connected to the top of the discharge port through a hinge 6. The discharge port is designed to be inclined, and its upper end is closer to the side of the impurity discharge pipe 1, so that under the action of its own weight, the outer sealing cover plate 2 can contact the discharge port, and only when the thrust of the light impurities reaches a certain level can the outer sealing cover plate 2 be opened to achieve impurity discharge.

[0020] The present invention provides multiple inner sealing covers in the impurity discharge pipe, which can promote the aggregation of light impurities, fill the interior of the pipe with light impurities, and achieve a sealing effect. The outlet is provided with an outer sealing cover, which can ensure the sealing effect when the equipment is running without impurities.

[0021] When the present invention is in use, the feeding end 4 is connected to the screw conveyor 7 to receive the light impurities sent from the screw conveyor 7 .

[0022] The invention has the advantages of simple structure, strong practicability, excellent air-blocking effect and low cost, and can not only effectively block the air but also ensure the smooth discharge of impurities, and has high practicability.

[0023] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A screw conveyor exhaust and air-closing device, characterized in that It comprises a waste discharge pipe (1), an inner sealing cover plate (3) arranged in the waste discharge pipe (1), and an outer sealing cover plate (2) arranged on the discharge end (5) of the waste discharge pipe (1); the shape of the inner sealing cover plate (3) corresponds to the radial cross section of the waste discharge pipe (1), and the upper end thereof is movably connected to the top inner side wall of the waste discharge pipe (1); The upper end of the inner sealing cover plate (3) is flexibly connected to the inner wall of the impurity discharge pipe (1); The impurity discharge pipe (1) is arranged obliquely, with its lower side end being the feed end (4) connected to the screw conveyor (7), and its upper side end being the discharge end (5); a plurality of inner sealing cover plates (3) are provided in the impurity discharge pipe (1).

2. The screw conveyor exhaust and air-closing device according to claim 1 is characterized in that The impurity discharge pipe (1) is square in shape.

3. The screw conveyor exhaust and air-blocking device according to claim 1 is characterized in that The upper end of the outer sealing cover plate (2) is movably connected to the top of the discharge port of the discharge end (5).

4. The screw conveyor exhaust and air-closing device according to claim 3 is characterized in that The outer sealing cover plate (2) is connected to the discharge port via a hinge (6).

5. A screw conveyor exhaust and air-blocking device according to claim 3 or 4, characterized in that The discharge port is arranged obliquely, and its bottom gradually inclines upwards towards a side close to the impurity discharge pipe (1), and the outer sealing cover plate (2) contacts the discharge port under the action of its own weight.

Images