Radar induction self-start-stop open type dust collection device for bulk aluminum oxide

Abstract

The utility model discloses a bulk aluminum oxide radar induction self-start-stop open type dust collecting device which comprises a discharging port bin, a hopper and a discharging platform, a support is arranged between the discharging platform and the ground, a dust collecting chamber is arranged in the discharging platform, a top plate of the dust collecting chamber is connected with the discharging platform through a connecting plate, a side plate is arranged at one end of the top plate, and the side plate is perpendicular to the ground. A dust collection hole is formed in the top plate, a dust collection pipeline is arranged in the dust collection hole in a penetrating mode, an electric butterfly valve is arranged in the dust collection pipeline, a bag-type dust remover is arranged at an outlet of the dust collection pipeline, a chute and a centrifugal fan are arranged on the bag-type dust remover, and the discharging end of the chute is arranged in a feeding port of a hopper in a penetrating mode. And the radar sensor and the electric butterfly valve are communicated with the PLC. The front-end dust collection chamber, the side dust collection chamber and the rear-end dust collection chamber are opened towards one side of the middle of the blanking platform, the frequency conversion fan generates negative pressure, and the radar sensor enables blanking of bulk aluminum oxide and dust collection induction to start interlocking operation, so that automatic start-stop operation of the dust collection device is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust removal in bulk alumina material conveying systems, and particularly relates to a radar-sensing automatic start-stop open dust collecting device for bulk alumina. Background Art

[0002] The aluminum electrolysis industry is gradually adopting a more low-carbon, environmentally friendly, and energy-efficient method of transporting alumina in bulk, replacing the traditional bagged method. This approach further improves the efficiency of material conveying systems and reduces material transportation costs. Dongxing Aluminum's new bulk alumina belt conveyor system at its 450,000-ton alumina depot in Jiayuguan has been developed to address the current situation of bulk alumina transport, which is characterized by large volumes and loose materials, easily causing material to fly, posing a high requirement for on-site environmental dust removal equipment. Utility Model Content

[0003] The purpose of the utility model is to provide a bulk alumina radar induction automatic start and stop open dust collecting device to solve the above problems.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A radar-sensing, self-starting and stopping open dust collecting device for bulk alumina comprises a discharge port bin arranged underground, a hopper arranged in the discharge port bin, a rectangular discharge platform arranged above the discharge port bin, a bracket arranged between the discharge platform and the ground, a plurality of dust collecting chambers arranged on the inner side of the discharge platform, each of the dust collecting chambers comprises a top plate, a side plate and an end plate, a connecting plate is arranged between the top plate and the discharge platform for fixed connection, the side plate is arranged at one end of the top plate close to the discharge platform, the side plate is perpendicular to the ground, and the ends of the top plate and the side plate are End plates are provided respectively, and the shape of the end plates matches the triangular structure formed by the top plate and the side plates. The bottom end of the side plate is not higher than the feed port of the hopper. A number of dust collecting holes are provided on the top plate, and dust suction pipes are passed through the dust collecting holes. An electric butterfly valve is provided in the dust suction pipe. A bag dust collector is provided at the outlet end of the dust suction pipe. A chute and a centrifugal fan are provided on the bag dust collector. The discharge end of the chute is passed through the feed port of the hopper. A radar sensor is provided on the unloading platform, and the radar sensor and the electric butterfly valve are respectively connected to the PLC.

[0006] In order to further realize the present invention, the dust collecting chamber includes a front dust collecting chamber, a rear dust collecting chamber and a side dust collecting chamber, and the top plates of the front dust collecting chamber and the rear dust collecting chamber are parallel to the ground; the front dust collecting chamber is arranged at one end of the unloading platform close to the vehicle entry position, and the two end plates of the front dust collecting chamber are both isosceles right triangles; the rear dust collecting chamber is arranged on the opposite side of the front dust collecting chamber, and the two end plates of the rear dust collecting chamber are both right triangles, and the vertex angle of the right triangle is 58° and the base angle is 32°; the side dust collecting chambers are symmetrically arranged on both sides of the unloading platform, and the top plates of the side dust collecting chambers are inclined from low to high in the direction away from the vehicle entry position, and the end plates at the intersection end of the side dust collecting chamber and the front dust collecting chamber are the same in shape and size as the end plates of the front dust collecting chamber, and the end plates at the intersection end of the side dust collecting chamber and the rear dust collecting chamber are the same in shape and size as the end plates of the rear dust collecting chamber.

[0007] In order to further realize the present invention, the front end dust collecting chamber includes two, the two front end dust collecting chambers are symmetrically arranged along the central axis of the unloading platform, and a gap is arranged between the two front end dust collecting chambers.

[0008] In order to further realize the present invention, the unloading platform includes a plate body, the outer side of the plate body is fixedly connected to the inner wall of the bracket, a downwardly extending fixing plate is provided on the inner side of the plate body, and a connecting plate is provided on the fixing plate.

[0009] In order to further realize the present utility model, the connecting plate is an "L"-shaped structure, the horizontal plate of the connecting plate is fixedly connected to the top plate of the dust collecting chamber, the vertical plate of the connecting plate is fixedly connected to the fixed plate, and the outer side of the vertical plate of the connecting plate is on the same plane as the outer side of the side plate of the dust collecting chamber.

[0010] In order to further realize the utility model, a manual butterfly valve is also provided on the dust suction pipe.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This utility model is primarily used for dust control during bulk alumina unloading. Based on the on-site dust emission direction and flow pattern, a pair of front dust collection chambers, shaped like isosceles triangles in side view (cross-section), are installed at the vehicle entrance. To accommodate the short-turn vehicle unloading process, these two front dust collection chambers are minimal in volume and symmetrically positioned. Side dust collection chambers, gradually increasing in volume from front to back, are symmetrically positioned on either side of the unloading platform. A rear dust collection chamber, shaped like a right triangle and having the largest volume (equal to the maximum volume of the two chambers), is located directly opposite the unloading opening. A total of five dust collection chambers are welded and fixed to the unloading platform. All are welded continuously using E4301 electrodes, with the weld seam height being the same as the thinnest point of the weldment. Each of the five dust collection chambers opens toward one side of the center of the unloading platform, forming a rectangular dust collection opening. The dust collection device is powered by the negative pressure generated by a variable-frequency fan. A radar sensor is welded to the side of the unloading platform. Adjusted sensing distance and position ensure interlocked operation between bulk alumina unloading and dust collection, enabling automatic start and stop of the dust collection device and enhancing the intelligent and green nature of the equipment.

[0013] The utility model can meet the on-site process requirements, improve the operating environment of employees and meet the environmental protection standards such as exhaust gas emission standards, dust removal ash is returned to the discharge port bin through a screw conveyor, and avoids environmental accidents such as flying materials and substandard emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a working state diagram of the support, unloading platform and dust collection chamber structure in the utility model;

[0016] Figure 3 This is a front view of the support, unloading platform and dust collection chamber of the utility model (showing the rear dust collection chamber);

[0017] Figure 4 This is a rear view of the support, unloading platform and dust collection chamber of the utility model (showing the front dust collection chamber);

[0018] Figure 5 This is a left side view of the support, unloading platform and dust collection chamber of the utility model (showing the side dust collection chamber);

[0019] Figure 6 This is a top view of the support, unloading platform and dust collection chamber in the utility model;

[0020] Figure 7 This is a schematic structural diagram of the end plate of the rear dust collecting chamber and the end plate at the intersection of the side dust collecting chamber and the rear dust collecting chamber in the present invention;

[0021] Figure 8This is a schematic structural diagram of the end plate of the front dust collecting chamber and the end plate at the intersection of the side dust collecting chamber and the front dust collecting chamber in the present invention;

[0022] The meanings of the accompanying numbers are as follows: 1. Discharge port bin; 2. Discharge platform; 3. Bracket; 4. Dust collecting chamber; 5. Top plate; 6. Side plate; 7. End plate; 8. Connecting plate; 9. Dust collecting hole; 10. Dust suction duct; 11. Electric butterfly valve; 12. Bag dust collector; 13. Chute; 14. Centrifugal fan; 15. Radar sensor; 16. Front dust collecting chamber; 17. Rear dust collecting chamber; 18. Side dust collecting chamber; 19. Slot; 20. Plate body; 21. Fixed plate; 22. Hopper; 23. Dust collecting port; 24. Discharge port; 25. Material box; 26. Manual butterfly valve. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1-8 As shown, a radar-sensing self-starting and stopping open dust collecting device for bulk alumina comprises a discharge port bin 1 arranged underground, a hopper 22 is arranged in the discharge port bin 1, and a rectangular discharge platform 2 is arranged above the discharge port bin 1. A bracket 3 is arranged between the discharge platform 2 and the ground, and a plurality of dust collecting chambers 4 are arranged on the inner side of the discharge platform 2. The dust collecting chambers 4 each comprise a top plate 5, a side plate 6 and an end plate 7. A connecting plate 8 is arranged between the top plate 5 and the discharge platform 2 for fixed connection. The side plate 6 is arranged at one end of the top plate 5 close to the discharge platform 2, and the side plate 6 is perpendicular to the ground. End plates 7 are respectively arranged at both ends of the top plate and the side plate 6. The shape of the end plate 7 is as follows: Matching the triangular structure formed by the top plate 5 and the side plates 6, the bottom end of the side plate 6 is not higher than the feed port of the hopper 22. A number of dust collecting holes 9 are provided on the top plate 5. A dust collection pipe 10 is passed through the dust collection hole 9. An electric butterfly valve 11 is provided in the dust collection pipe 10. A bag dust collector 12 is provided at the outlet end of the dust collection pipe 10. A chute 13 and a centrifugal fan 14 are provided on the bag dust collector 12. The discharge end of the chute 13 is passed through the feed port of the hopper 22. A radar sensor 15 is provided on the unloading platform 2. The radar sensor 15 and the electric butterfly valve 11 are respectively connected to the PLC. A manual butterfly valve 26 is also provided on the dust collection pipe 10.

[0025] The dust collecting chamber 4 includes a front dust collecting chamber 16, a rear dust collecting chamber 17 and a side dust collecting chamber 18. The top plates 5 of the front dust collecting chamber 16 and the rear dust collecting chamber 17 are parallel to the ground; the front dust collecting chamber 16 is arranged at one end of the unloading platform 2 close to the vehicle inlet position, and the two end plates 7 of the front dust collecting chamber 16 are both isosceles right triangles; the rear dust collecting chamber 17 is arranged on the opposite side of the front dust collecting chamber 16, and the two end plates 7 of the rear dust collecting chamber 17 are both right triangles, the vertex angle of the right triangle is 58° and the base angle is 32°; the side dust collecting chamber 18 is symmetrically arranged Placed on both sides of the unloading platform 2, the top plate 5 of the side dust collecting chamber 18 is inclined from low to high in the direction away from the vehicle entry position, the end plate 7 at the intersection of the side dust collecting chamber 18 and the front dust collecting chamber 16 is the same in shape and size as the end plate 7 of the front dust collecting chamber 16, the end plate 7 at the intersection of the side dust collecting chamber 18 and the rear dust collecting chamber 17 is the same in shape and size as the end plate 7 of the rear dust collecting chamber 17, the front dust collecting chamber 16 includes two, the two front dust collecting chambers 16 are symmetrically arranged along the central axis of the unloading platform 2, and a notch 19 is arranged between the two front dust collecting chambers 16.

[0026] The unloading platform 2 includes a plate body 20, the outer side of the plate body 20 is fixedly connected to the inner wall of the bracket 3, a downwardly extending fixed plate 21 is provided on the inner side of the plate body 20, and a connecting plate 8 is provided on the fixed plate 21. The connecting plate 8 is an "L"-shaped structure, and the horizontal plate of the connecting plate 8 is fixedly connected to the top plate 5 of the dust collecting chamber 4, and the vertical plate of the connecting plate 8 is fixedly connected to the fixed plate 21. The outer side of the vertical plate of the connecting plate 8 is on the same plane as the outer side of the side plate 6 of the dust collecting chamber 4.

[0027] During the bulk alumina transfer process, after the car pulls the material box 25 and reverses to the entry position of the unloading platform 2, the car body is lifted to guide the bulk alumina into the unloading port 24 in the center of the unloading platform 2. At the same time, after the radar sensor 15 measures and senses the material box 25, it feeds back a signal to the PLC input circuit. After the CPU calculates and outputs a signal, the electric butterfly valve 11 is opened, and the frequency-controlled centrifugal fan 14 generates negative pressure. The negative pressure in the dust collecting chamber 4 generates suction, and the dust generated by the short fall of the bulk alumina is sucked into the 5 dust collecting chambers 4 through the dust collecting ports. The dust collection pipe 10 extracts the dust from the dust collecting hole 9 and sucks it into the pulse bag dust collector 12 for filtration. The filtered material enters the unloading port bin 1 through the chute 13 for recycling, and the remaining harmless gases are discharged into the atmosphere through the flue. When the unloading is completed, the car leaves, and the radar sensor 15 feedback system has no induction, the electric butterfly valve 11 automatically closes the dust collection, and the operation is completed.

Claims

1. A radar-sensing, self-starting and self-stopping open dust collecting device for bulk alumina, comprising a feed opening bin arranged underground, a hopper arranged in the feed opening bin, and characterized by: The invention also includes a rectangular unloading platform (2) arranged above the unloading port bin (1), a bracket (3) arranged between the unloading platform (2) and the ground, a plurality of dust collecting chambers (4) arranged on the inner side of the unloading platform (2), and the dust collecting chambers (4) each including a top plate (5), a side plate (6) and an end plate (7). A connecting plate (8) is arranged between the top plate (5) and the unloading platform (2) for fixed connection, the side plate (6) is arranged at one end of the top plate (5) close to the unloading platform (2), the side plate (6) is perpendicular to the ground, and end plates (7) are respectively arranged at both ends of the top plate and the side plate (6), and the shape of the end plate (7) is the same as the triangle formed by the top plate (5) and the side plate (6). The structure is matched, the bottom end of the side plate (6) is not higher than the feed port of the hopper (22), a plurality of dust collecting holes (9) are provided on the top plate (5), a dust collecting pipe (10) is passed through the dust collecting hole (9), an electric butterfly valve (11) is provided in the dust collecting pipe (10), a bag dust collector (12) is provided at the outlet end of the dust collecting pipe (10), a chute (13) and a centrifugal fan (14) are provided on the bag dust collector (12), the discharge end of the chute (13) is passed through the feed port of the hopper (22), a radar sensor (15) is provided on the unloading platform (2), and the radar sensor (15) and the electric butterfly valve (11) are respectively connected to the PLC.

2. The bulk alumina radar induction automatic start-stop open dust collection device according to claim 1, characterized in that: The dust collecting chamber (4) includes a front dust collecting chamber (16), a rear dust collecting chamber (17) and a side dust collecting chamber (18), and the top plates (5) of the front dust collecting chamber (16) and the rear dust collecting chamber (17) are parallel to the ground; the front dust collecting chamber (16) is arranged at one end of the unloading platform (2) close to the vehicle inlet position, and the two end plates (7) of the front dust collecting chamber (16) are both isosceles right triangles; the rear dust collecting chamber (17) is arranged on the opposite side of the front dust collecting chamber (16), and the two end plates (7) of the rear dust collecting chamber (17) are both right triangles. The vertex angle of the triangle is 58°, and the base angle is 32°; the side dust collecting chamber (18) is symmetrically arranged on both sides of the unloading platform (2); the top plate (5) of the side dust collecting chamber (18) is inclined from low to high in the direction away from the vehicle entry position; the end plate (7) at the intersection of the side dust collecting chamber (18) and the front dust collecting chamber (16) is the same in shape and size as the end plate (7) of the front dust collecting chamber (16); the end plate (7) at the intersection of the side dust collecting chamber (18) and the rear dust collecting chamber (17) is the same in shape and size as the end plate (7) of the rear dust collecting chamber (17).

3. The bulk alumina radar-sensing automatic start-stop open dust collection device according to claim 2, characterized in that: The front dust collecting chambers (16) include two front dust collecting chambers (16), which are symmetrically arranged along the central axis of the unloading platform (2), and a notch (19) is arranged between the two front dust collecting chambers (16).

4. The bulk alumina radar-sensing automatic start-stop open dust collection device according to claim 3, characterized in that: The unloading platform (2) comprises a plate body (20), the outer side of the plate body (20) is fixedly connected to the inner wall of the bracket (3), a downwardly extending fixing plate (21) is provided on the inner side of the plate body (20), and a connecting plate (8) is provided on the fixing plate (21).

5. The bulk alumina radar induction automatic start-stop open dust collection device according to claim 4, characterized in that: The connecting plate (8) is an "L"-shaped structure, wherein the horizontal plate of the connecting plate (8) is fixedly connected to the top plate (5) of the dust collecting chamber (4), the vertical plate of the connecting plate (8) is fixedly connected to the fixed plate (21), and the outer side of the vertical plate of the connecting plate (8) is on the same plane as the outer side of the side plate (6) of the dust collecting chamber (4).

6. The bulk alumina radar-sensing automatic start-stop open dust collection device according to claim 5, characterized in that: The dust suction pipe (10) is also provided with a manual butterfly valve (26).

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