Alumina ash pneumatic conveying apparatus

Abstract

The present application relates to aluminum ash conveying equipment technical field, especially to a kind of aluminum ash wind conveying equipment, including pipeline, pipeline includes inclined section and horizontal section, the bottom end of inclined section forms air inlet, the top end of inclined section is connected with the one end of the horizontal section, and the other end of horizontal section forms air outlet;At least one bypass pipeline is provided on the inclined section, and the bypass pipeline is located below the inclined section, and the diameter is less than the diameter of the pipeline.The aluminum ash wind conveying equipment of the present application is installed with air guide fan or connected other air guide equipment at air outlet when in use, aluminum ash enters inclined section under the action of negative pressure suction through air inlet, and as the upward movement of aluminum ash increases, the resistance of negative pressure suction becomes larger, and some particles with larger diameter in aluminum ash fall under the action of gravity, and are discharged through bypass pipeline, so that the number of aluminum ash continuing to move upward is reduced at bypass pipeline while screening aluminum ash, thereby effectively preventing the situation that aluminum ash blocks pipeline occurs.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aluminum ash conveying equipment, and particularly relates to an aluminum ash wind conveying equipment. BACKGROUND

[0002] In the production engineering of cast aluminum and its alloy, a large amount of ash is generated in the smelting furnace, and the ash contains a large amount of aluminum, so it needs to be recycled and reused. The existing ash treatment method is to separate the aluminum ash and aluminum blocks after simple crushing and screening, and then perform subsequent treatment. In order to prevent high-temperature aluminum ash from damaging the conveying device, the separated aluminum ash is cooled in a cooling bucket and then conveyed to the subsequent process by the conveying device. This method needs to wait for the aluminum ash to cool down before conveying, which is low in efficiency.

[0003] Therefore, people try to use the pipeline conveying method to convey aluminum ash. The aluminum ash is conveyed through the high-temperature-resistant pipeline by the negative pressure suction method. In the conveying process, the aluminum ash gradually cools down by the pipeline wall to complete the cooling process. In this conveying method, the aluminum ash is easy to block the pipeline under the condition that the feeding amount of the air inlet is large. SUMMARY

[0004] The present application aims at solving the problems in the prior art and provides an aluminum ash wind conveying equipment to solve the above technical problems.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0006] An aluminum ash wind conveying equipment includes a pipeline, the pipeline includes an inclined section and a horizontal section, the bottom end of the inclined section forms an air inlet, the top end of the inclined section is connected with one end of the horizontal section, and the other end of the horizontal section forms an air outlet; at least one bypass pipeline is arranged on the inclined section, the bypass pipeline outlet is located below the inclined section, and the diameter of the bypass pipeline is smaller than that of the pipeline.

[0007] Preferably, the top end of the bypass pipeline is provided with a horn mouth, one end of the horn mouth with a larger diameter is connected with the inclined section, and the other end is connected with the bypass pipeline.

[0008] Preferably, the pipeline is a circular pipeline or an elliptical pipeline; a plurality of groups of ventilation holes are arranged axially on the inclined section, and each group of ventilation holes is arranged circumferentially along the inclined section.

[0009] Preferably, the horizontal section is provided with at least two filtering structures; the filtering structure comprises a filtering pipe, the filtering pipe separates the horizontal section into a front section and a rear section, the front section is arranged close to the inclined section relative to the rear section, the front section and the rear section are detachably connected with the filtering pipe, inwardly protruding flanges are arranged at positions close to both ends in the filtering pipe, at least two supporting rods are arranged between the two flanges along the circumference of the filtering pipe; a filter screen is arranged on the side close to the front section between the two flanges, the supporting rods penetrate through the filter screen and are in sliding connection with the filter screen; springs are sleeved on the supporting rods, the springs abut the filter screen against the flange close to the front section, the edges of the filter screen are in contact with the inner wall of the filtering pipe; the bottom of the filtering pipe is provided with a first outlet, a second outlet and an arc-shaped pipe, one end of the arc-shaped pipe is in communication with the first outlet, the other end is in communication with the second outlet, and the second outlet is located on the side of the filter screen close to the rear section.

[0010] Preferably, the two ends of the arc-shaped pipe are higher than the middle position, and the bottom is provided with a dust falling port.

[0011] Preferably, the first outlet is arranged close to the filter screen, the diameter of the arc-shaped pipe is smaller than the length of the first outlet; the bottom of the filter screen is provided with a flexible shielding piece, one end of the flexible shielding piece is connected with the filter screen, the other end is connected with the filtering pipe, and the two sides are in sliding connection with the filtering pipe; the bottom of the filtering pipe is provided with a dust collecting chamber, and the first outlet, the second outlet and the arc-shaped pipe are located in the dust collecting chamber.

[0012] Preferably, the bottom of the filter screen is provided with a flexible shielding piece, one end of the flexible shielding piece is connected with the filter screen, the other end is connected with the filtering pipe, and the two sides are in sliding connection with the filtering pipe; the bottom of the filtering pipe is provided with a dust collecting chamber, and the first outlet, the second outlet and the arc-shaped pipe are located in the dust collecting chamber; the degree of protrusion of the flange at the position close to the front section at the bottom is less than the degree of protrusion at the top, so that the flange forms an aluminum ash collecting groove at the position between the filter screen and the front section at the bottom, and the filtering pipe is provided with a dust collecting hole in communication with the dust collecting chamber at the position corresponding to the aluminum ash collecting groove.

[0013] Preferably, the front section and the rear section are in threaded connection with the filtering pipe.

[0014] Preferably, an air guide fan is installed at the air outlet.

[0015] The aluminum ash wind power conveying device of the present application is provided with an air guide fan or other air guide device at the air outlet in use, and the aluminum ash enters the inclined section through the air inlet under the action of negative pressure suction. With the upward movement of the aluminum ash, the resistance of the negative pressure suction increases, and some particles with large diameter in the aluminum ash fall under the action of gravity and are discharged through the bypass pipeline, so that the number of the aluminum ash that continues to move upward is reduced at the bypass pipeline while the aluminum ash is screened, thereby effectively preventing the aluminum ash from blocking the pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A structural schematic view of an aluminum ash wind power conveying device according to the present application is shown in the figure.

[0017] Figure 2 A structural schematic view of an aluminum ash wind power conveying device according to the present application is shown in the figure. Figure 1 An enlarged view at B.

[0018] Figure 3 A structural schematic view of an aluminum ash wind power conveying device according to the present application is shown in the figure. Figure 1 and Figure 2 An A-A sectional view of the figure.

[0019] Figure 4 An enlarged view at C. Figure 1 An enlarged view at C.

[0020] Figure 5 A variant view of the figure. Figure 4

[0021] In the figure: inclined section 1-1, ventilation hole 1-11, horizontal section 1-2, front section 1-22, rear section 1-21, bypass pipeline 2, filter pipeline 3-1, flange 3-11, first outlet 3-12, second outlet 3-13, aluminum ash collecting tank 3-14, dust collecting hole 3-15 support rod 4, filter screen 5, spring 6, arc-shaped tube 7, flexible shielding sheet 8, dust collecting chamber 9. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application.

[0023] With reference to Figure 1 , the present embodiment is an aluminum ash wind power conveying device, which comprises a pipeline, the pipeline comprising an inclined section 1-1 and a horizontal section 1-2, the bottom end of the inclined section forming an air inlet, the top end of the inclined section being connected with one end of the horizontal section, the other end of the horizontal section forming an air outlet; at least one bypass pipeline 2 is arranged on the inclined section, the bypass pipeline outlet being located below the inclined section and having a smaller diameter than the pipeline.

[0024] ​The aluminum ash wind conveying device is provided with an air guide fan or other air guide device at the air outlet, and the aluminum ash enters the inclined section through the air inlet under the action of negative pressure suction. With the upward movement of the aluminum ash, the resistance of the negative pressure suction increases, and some large-diameter particles in the aluminum ash fall under the action of gravity and are discharged through the bypass pipeline, so that the number of aluminum ash that continues to move upward is reduced at the bypass pipeline while the aluminum ash is screened, thereby effectively preventing the aluminum ash from blocking the pipeline. In order to facilitate the falling of the large-diameter particles to the bypass pipe, the top end of the bypass pipeline is provided with a bell mouth, one end of which is connected with the inclined section, and the other end is connected with the bypass pipeline.

[0025] In one embodiment, referring to Figures 1-3 , the pipeline is a circular pipeline or an elliptical pipeline; a plurality of groups of ventilation holes 1-11 are arranged axially on the inclined section, each group of ventilation holes is arranged circumferentially on the inclined section, and is arranged obliquely relative to the tangent of the ventilation hole. This structure can accelerate the heat dissipation of the aluminum ash by arranging the ventilation holes. In addition, referring to Figure 3 , the air inlet direction at the ventilation hole is shown by the arrow in the figure, and a circular ring-shaped airflow is formed near the inner wall of the inclined section after air is inhaled through the plurality of ventilation holes. The movement direction of the circular ring-shaped airflow is shown by the dashed line in the figure. In this way, the aluminum ash is not easy to adhere to the inner wall of the inclined section when it rises axially through the plurality of groups of circular ring-shaped airflows after entering the inclined section, so the pipeline is not easy to be blocked. Generally, the pipeline at the inclined section is easy to be blocked. Of course, if necessary, the horizontal section can also be provided with one or more groups of ventilation holes. The inclination angles of each group of ventilation holes are preferably the same, and the inclination angles of the plurality of groups of ventilation holes can also be the same.

[0026] In one embodiment, referring to Figure 1 and Figure 4, the horizontal section is provided with at least two filtering structures; the filtering structure comprises a filtering pipe 3-1 which separates the horizontal section into a front section 1-22 and a rear section 1-21, the front section is arranged close to the inclined section relative to the rear section, and the front section and the rear section are detachably connected with the filtering pipe, generally, the front section and the rear section are threadedly connected with the filtering pipe; inwardly protruding flanges 3-11 are arranged at positions close to both ends in the filtering pipe, at least two supporting rods 4 are arranged between the two flanges in the circumferential direction of the filtering pipe; a filter screen 5 is arranged on one side close to the front section between the two flanges, the supporting rods penetrate through the filter screen and are slidably connected with the filter screen; springs 6 are sleeved on the supporting rods, the springs abut the filter screen against the flange close to the front section, and the edges of the filter screen are in contact with the inner wall of the filtering pipe; the bottom of the filtering pipe is provided with a first outlet 3-12 and a second outlet 3-13 and an arc-shaped pipe 7, one end of the arc-shaped pipe is in communication with the first outlet, the other end is in communication with the second outlet, and the second outlet is located on the side of the filter screen close to the rear section. In use, the aluminum ash can be further screened by the filter screen, and the relatively large-diameter particles are blocked, when the filter screen is blocked, it moves to the left under the action of negative pressure, when it moves to the left end position of the arc-shaped pipe, the right end of the arc-shaped pipe has a side suction effect on the filter screen, the filter screen is cleaned, the aluminum ash is sucked into the arc-shaped pipe, the resistance of the cleaned filter screen to the wind is reduced, and it returns to the original state under the action of the spring, and the process is repeated. As an embodiment, the two ends of the arc-shaped pipe are higher than the middle position, and the bottom is provided with a dust falling port to facilitate the discharge of the aluminum ash cleaned into the arc-shaped pipe, of course, if a small amount of aluminum ash in the arc-shaped pipe continues to move forward through the left side of the arc-shaped pipe, the filter structure on the left side plays a role, and the principle of the filter structure is the same, which will not be described here. In the embodiment, three filter structures can be arranged, the mesh of the filter screen of the two filter structures close to the inclined section can be larger than the mesh of the other filter screen, or the mesh can be the same. Further, the first outlet is arranged close to the filter screen, the diameter of the arc-shaped pipe is smaller than the length of the first outlet; the bottom of the filter screen is provided with a flexible shielding piece 8, one end of the flexible shielding piece is connected with the filter screen, the other end is connected with the filtering pipe, and the two sides are slidably connected with the filtering pipe, generally, the two sides can be slidably connected with the filtering pipe through a zipper or a sliding rail, wherein the flexible shielding piece can be made of non-woven fabric or glass fiber cloth; the bottom of the filtering pipe is provided with a dust collecting chamber 9, and the first outlet, the second outlet and the arc-shaped pipe are located in the dust collecting chamber. During the movement of the filter screen to the left side, part of the aluminum ash enters the dust collecting chamber through the first outlet, which facilitates the collection of the aluminum ash;

[0027] As a deformation, see Figure 5The first outlet is directly communicated with the arc-shaped pipeline, the flange protrudes less at the bottom near the front section than at the top, so that the flange forms an aluminum ash collecting groove 3-14 between the filter screen and the front section at the bottom, and the filter pipeline is provided with a dust collecting hole 3-15 communicated with the dust collecting chamber at the position corresponding to the aluminum ash collecting groove, so that the aluminum ash blocked by the filter screen enters the dust collecting chamber through the aluminum ash collecting groove and the dust collecting hole.

[0028] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacements or changes within the technical range disclosed by the present application according to the technical solution and the inventive concept of the present application, which should be covered within the protection scope of the present application.

Claims

1. An aluminum dross pneumatic conveying apparatus comprising a duct, characterized in that, The pipeline comprises an inclined section (1-1) and a horizontal section (1-2), the bottom end of the inclined section forms an air inlet, the top end of the inclined section is connected with one end of the horizontal section, and the other end of the horizontal section forms an air outlet; At least one bypass pipeline (2) is arranged on the inclined section, the outlet of the bypass pipeline is located below the inclined section, and the diameter of the bypass pipeline is smaller than that of the pipeline; At least two filtering structures are arranged on the horizontal section; The filtering structure comprises a filtering pipeline (3-1), the filtering pipeline separates the horizontal section into a front section (1-22) and a rear section (1-21), the front section is arranged close to the inclined section relative to the rear section, the front section and the rear section are detachably connected with the filtering pipeline, inwardly protruding flanges (3-11) are arranged in the filtering pipeline close to both ends, and at least two supporting rods (4) are arranged between the two flanges in the circumferential direction of the filtering pipeline; A filter screen (5) is arranged on one side between the two flanges close to the front section, the supporting rods penetrate through the filter screen and are in sliding connection with the filter screen; Springs (6) are arranged on the supporting rods, the springs abut the filter screen against the flange close to the front section, and the edges of the filter screen are in contact with the inner wall of the filtering pipeline; The bottom of the filtering pipeline is provided with a first outlet (3-12), a second outlet (3-13) and an arc-shaped pipeline (7), one end of the arc-shaped pipeline is in communication with the first outlet, the other end is in communication with the second outlet, and the second outlet is located on one side of the filter screen close to the rear section; The two ends of the arc-shaped pipeline are higher than the middle position, and the bottom is provided with a dust falling port; The first outlet is arranged close to the filter screen, and the diameter of the arc-shaped pipeline is smaller than the length of the first outlet; The bottom of the filter screen is provided with a flexible shielding sheet (8), one end of the flexible shielding sheet is connected with the filter screen, the other end is connected with the filtering pipeline, and the two sides are in sliding connection with the filtering pipeline; The bottom of the filtering pipeline is provided with a dust collecting chamber (9), and the first outlet, the second outlet and the arc-shaped pipeline are located in the dust collecting chamber; The degree of protrusion of the flange at the bottom close to the front section is smaller than that of the top, so that the flange forms an aluminum ash collecting groove (3-14) at the position between the filter screen and the front section at the bottom, and the filtering pipeline is provided with a dust collecting hole (3-15) in communication with the dust collecting chamber at the position corresponding to the aluminum ash collecting groove; An air guide fan is installed at the air outlet.

2. An aluminum dross pneumatic conveying apparatus according to claim 1, wherein The top end of the bypass pipeline is provided with a horn mouth, one end of the horn mouth with a larger diameter is connected with the inclined section, and the other end is connected with the bypass pipeline.

3. An aluminium dross pneumatic conveying apparatus according to claim 1 or 2, wherein The pipeline is a circular pipeline or an elliptical pipeline; A plurality of groups of ventilation holes (1-11) are arranged on the inclined section in the axial direction, and each group of ventilation holes is arranged in the circumferential direction of the inclined section.

4. An aluminum dross pneumatic conveying apparatus as defined in claim 1 wherein, The front section and the rear section are in threaded connection with the filtering pipeline.

Images