Filling device for slag return circulation

Abstract

The utility model discloses a filling device for furnace slag return circulation, and relates to the technical field of furnace slag circulation filling devices. The filling device for slag return circulation comprises a mounting shell fixedly mounted in the filling device, a feeding port is formed in the upper portion of the mounting shell, a discharging port is formed in the lower portion of the mounting shell, and a conveyor used for conveying slag is mounted on the inner wall of the mounting shell; the screening groove is formed in the middle of the mounting shell; the two electromagnets are rotationally mounted on the side, close to the screening groove, of the upper portion of the mounting shell through rotating shafts and used for adsorbing metal in the slag; the first motor is fixed to the inner wall of the mounting shell and is a gear motor, and the output end of the first motor is fixed to the rotating shaft; according to the device, by arranging the metal screening assembly, large metal blocks and small metal blocks of metal adsorbed out of slag can be separated through a screening plate, the metal can be conveniently recycled in the later period for reutilization, and the recycling rate of screening components is effectively increased.

Description

Technical Field

[0001] The utility model relates to the technical field of slag circulation filling devices, in particular to a filling device for slag return circulation. Background Art

[0002] The slag return circulation packing device plays an important role in the circulating fluidized bed boiler system. It mainly involves the collection, transportation and recycling of slag. During the slag circulation process, it is necessary to screen the various components in the slag to extract the recyclable slag.

[0003] A fluidized bed boiler bed material recycling and replenishment system disclosed in the patent application with reference publication number CN215062026U includes a fluidized bed boiler, a water-cooled screw conveyor, a scraper conveyor, a drum screening device, a bin-type pneumatic conveying pump and a quartz sand replenishment device, the slag enters the drum screening device through the water-cooled screw conveyor and the scraper conveyor, the bin-type pneumatic conveying pump is arranged at the fine material outlet of the drum screening device, a first gate valve is arranged between the drum screening device and the bin-type pneumatic conveying pump, and the bin-type pneumatic conveying pump and the fluidized bed boiler are connected through a recycling pipeline. Aiming at the technical problem that the slag contains a large amount of fine-grained bed material in the prior art but has not been fully and effectively utilized, the utility model can screen the furnace bottom slag, screen the fine-grained material, and return it to the furnace as bed material by pneumatic conveying, thereby avoiding waste of resources, greatly reducing the amount of quartz sand, reducing the boiler operation cost, and improving the economic efficiency of the unit operation.

[0004] As shown in the above-mentioned prior art, in the prior art, a magnetic separation device is provided so that metal objects in the slag can be screened out, but the screened metals are usually of different sizes, which makes it inconvenient to reuse the screened metal objects. Although the utilization rate of the slag is improved, the utilization rate of the screened components is greatly reduced.

[0005] Therefore, it is necessary to provide a filling device for slag return circulation to solve the above technical problems. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In order to solve the above technical problems, the utility model provides a filling device for slag return circulation.

[0008] (II) Technical solution

[0009] To achieve the above purpose, the utility model is implemented through the following technical solutions: a slag return material circulation packing device, comprising:

[0010] An installation shell is fixedly installed inside the filler assembly, an inlet is provided on the top of the installation shell, an outlet is provided on the bottom of the installation shell, and a conveyor for conveying slag is installed on the inner wall of the installation shell;

[0011] The screening tank is opened in the middle of the mounting shell;

[0012] There are two electromagnets, and both of the electromagnets are rotatably mounted on one side of the mounting shell near the screening slot through a rotating shaft, and are used to absorb metal in the slag;

[0013] A first motor is fixed to the inner wall of the mounting shell, and an output end of the first motor is fixed to the rotating shaft;

[0014] The metal screening component is installed on the side of the installation shell close to the electromagnet and is used to screen large pieces of metal from small pieces of metal.

[0015] Preferably, the metal screening assembly comprises a screening box fixed to one side of the mounting shell, a screening plate is slidably connected to the inner wall of the screening box, and a reciprocating assembly for driving the screening plate to reciprocate is installed on one side of the screening box.

[0016] Preferably, the reciprocating assembly includes an extension block fixed to one side of the screen plate, the screening box is slidably connected to a sliding rod on the side close to the extension block, the end of the sliding rod close to the extension block is fixed to the extension block, the end of the sliding rod facing away from the extension block is rotatably connected to a connecting rod, one side of the screening box is rotatably connected to a turntable, the turntable is rotatably connected to the connecting rod, a second motor is fixed to one side of the screening box, and the output end of the second motor is fixed to the turntable.

[0017] Preferably, two baffles are slidably connected to one side of the screening box, a connecting block is fixed to one side of the two baffles, a screw is rotatably connected to one side of the mounting shell close to the connecting block, a third motor is fixed to one end of the mounting shell close to the screw, the output end of the third motor is fixed to the screw, the connecting block is threadedly connected to the outer wall of the screw, and the connecting block is slidably connected to the side wall of the mounting shell.

[0018] Preferably, connecting rods are symmetrically fixed to the outer wall of the rotating shaft, one end of the connecting rod facing away from the rotating shaft is fixed to the electromagnet, and reinforcing ribs are fixed on both sides of the connecting rod.

[0019] Preferably, the first motor is a reduction motor.

[0020] (III) Beneficial effects

[0021] The utility model provides a filling device for slag return circulation. Compared with the prior art, it has the following beneficial effects:

[0022] 1. The application sets up a metal screening component so that the metal adsorbed from the slag can pass through the screen plate to separate large pieces of metal from small pieces of metal, which is convenient for the subsequent recovery of metal for reuse, and effectively improves the recovery rate of the screening components;

[0023] 2. This application provides a baffle, a screw, a connecting block and a third motor so that the baffle can be moved on the screening box only by driving the third motor, thereby facilitating the removal of the screened large and small pieces of metal from the screening box. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the relationship between the installation shell and the conveyor of the utility model;

[0026] Figure 3 This is a schematic diagram of the relationship between the extension block and the screen plate of the utility model;

[0027] Figure 4 This is a schematic diagram of the relationship between the connecting block and the screw rod of the utility model.

[0028] Numbers in the figure: 1. Mounting shell; 2. Feed inlet; 3. Discharge outlet; 4. Conveyor; 5. Screening trough; 6. Electromagnet; 7. First motor; 8. Rotating shaft; 9. Screening box; 10. Screen plate; 11. Extension block; 12. Sliding rod; 13. Connecting rod; 14. Turntable; 15. Second motor; 16. Baffle; 17. Connecting block; 18. Screw; 19. Third motor; 20. Connecting rod; 21. Reinforcing rib. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] The utility model provides two technical solutions:

[0031] Figures 1 to 3 A first embodiment is shown: a filling device for slag return circulation, comprising:

[0032] The installation shell 1 is fixedly installed inside the packing assembly, a material inlet 2 is provided on the top of the installation shell 1, a material outlet 3 is provided on the bottom of the installation shell 1, and a conveyor 4 for conveying slag is installed on the inner wall of the installation shell 1;

[0033] The screening tank 5 is provided in the middle of the mounting shell 1;

[0034] There are two electromagnets 6, and both electromagnets 6 are rotatably mounted on one side of the mounting shell 1 near the screening slot 5 through a rotating shaft 8, and are used to absorb metal in the slag;

[0035] A first motor 7 is fixed to the inner wall of the mounting shell 1. The first motor 7 is a reduction motor. An output end of the first motor 7 is fixed to a rotating shaft 8.

[0036] The metal screening component is installed on a side of the mounting shell 1 close to the electromagnet 6 and is used to screen large pieces of metal from small pieces of metal.

[0037] The metal screening component comprises a screening box 9 fixed to one side of the mounting shell 1, a screening plate 10 is slidably connected to the inner wall of the screening box 9, and a reciprocating component for driving the screening plate 10 to reciprocate is installed on one side of the screening box 9.

[0038] The reciprocating assembly includes an extension block 11 fixed to one side of the screen plate 10, a sliding rod 12 is slidably connected to the side of the screening box 9 close to the extension block 11, the end of the sliding rod 12 close to the extension block 11 is fixed to the extension block 11, and the end of the sliding rod 12 away from the extension block 11 is rotatably connected to a connecting rod 13, a turntable 14 is rotatably connected to one side of the screening box 9, the turntable 14 is rotatably connected to the connecting rod 13, and a second motor 15 is fixed to one side of the screening box 9, and the output end of the second motor 15 is fixed to the turntable 14.

[0039] This application sets up a metal screening component so that the metal adsorbed from the slag can pass through the screen plate 10 to separate large pieces of metal from small pieces of metal, which is convenient for later recovery of the metal for reuse and effectively improves the recovery rate of the screening components.

[0040] Figure 3 to Figure 4 A second embodiment is shown, which mainly differs from the first embodiment in that two baffles 16 are slidably connected to one side of the screening box 9, a connecting block 17 is fixed to one side of the two baffles 16, a screw 18 is rotatably connected to one side of the mounting shell 1 close to the connecting block 17, a third motor 19 is fixed to one end of the mounting shell 1 close to the screw 18, an output end of the third motor 19 is fixed to the screw 18, the connecting block 17 is threadedly connected to the outer wall of the screw 18, and the connecting block 17 is slidably connected to the side wall of the mounting shell 1.

[0041] The outer wall of the rotating shaft 8 is symmetrically fixed with connecting rods 20 , one end of the connecting rod 20 away from the rotating shaft 8 is fixed to the electromagnet 6 , and reinforcing ribs 21 are fixed on both sides of the connecting rod 20 .

[0042] This application arranges a baffle 16, a screw 18, a connecting block 17 and a third motor 19 so that the baffle 16 can be moved on the screening box 9 only by driving the third motor 19, thereby facilitating the removal of the screened large and small pieces of metal from the screening box 9.

[0043] Working principle:

[0044] The packing component adopts the fluidized bed boiler bed material recycling and replenishing system in CN215062026U, which is the existing technology and will not be described in detail.

[0045] The installation shell 1 is fixed inside the filling assembly, and the inlet 2 of the installation shell 1 receives the slag produced by the fluidized bed boiler. The conveyor 4 transports the slag to the direction of the screening slot 5 and transports the slag out of the installation shell through the outlet 3. After layers of screening, the recyclable slag is screened out, and the slag will finally be transported back to the fluidized bed boiler by the filling assembly; when the slag passes through the screening slot 5, the electromagnet 6 located above the screening slot 5 is turned on to absorb the metal in the slag. After a batch of slag completely leaves the screening slot 5, the first motor 7 rotates the shaft 8, driving the connecting rod 20 and the electromagnet 6 to rotate The electromagnet 6 that absorbs metal is moved to above the screening box 9, and the other electromagnet 6 is located above the screening slot 5 to absorb the metal in the next batch of slag; the electromagnet 6 located above the screening box 9 is powered off to release the metal, and the metal falls on the sieve plate 10, and the second motor 15 rotates the turntable 14 to drive one end of the connecting rod 13 to rotate, so that the sliding bar 12 slides on the side wall of the screening box 9, driving the extension block 11 and the sieve plate 10 to reciprocate, and small pieces of metal are screened to the bottom of the sieve plate 10, leaving large pieces of metal on the sieve plate 10.

[0046] The screened metal is taken out from the screening box 9 regularly, and the third motor 19 rotates the screw 18, so that the connecting block 17 moves away from the screening box 9, driving the baffle 16 to move accordingly, so that the screened metal can be taken out.

[0047] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filling device for slag return circulation, characterized in that: include: A mounting shell (1) is fixedly mounted inside the filler assembly, an inlet (2) is provided at the top of the mounting shell (1), a discharge port (3) is provided at the bottom of the mounting shell (1), and a conveyor (4) for conveying slag is installed on the inner wall of the mounting shell (1); A screening tank (5) is provided in the middle of the mounting shell (1); Two electromagnets (6) are provided, and both electromagnets (6) are rotatably mounted on one side of the mounting shell (1) near the screening slot (5) via a rotating shaft (8) for absorbing metal in the slag; A first motor (7) is fixed to the inner wall of the mounting shell (1), and an output end of the first motor (7) is fixed to a rotating shaft (8); The metal screening component is installed on a side of the installation shell (1) close to the electromagnet (6) and is used to screen large pieces of metal from small pieces of metal.

2. A slag return material circulation packing device according to claim 1, characterized in that: The metal screening component comprises a screening box (9) fixed to one side of the mounting shell (1), a screening plate (10) being slidably connected to the inner wall of the screening box (9), and a reciprocating component for driving the screening plate (10) to reciprocate is installed on one side of the screening box (9).

3. A filling device for slag return circulation according to claim 2, characterized in that: The reciprocating assembly comprises an extension block (11) fixed to one side of the screen plate (10); a sliding rod (12) is slidably connected to the side of the screening box (9) close to the extension block (11); one end of the sliding rod (12) close to the extension block (11) is fixed to the extension block (11); one end of the sliding rod (12) away from the extension block (11) is rotatably connected to a connecting rod (13); a turntable (14) is rotatably connected to one side of the screening box (9); the turntable (14) is rotatably connected to the connecting rod (13); a second motor (15) is fixed to one side of the screening box (9); and an output end of the second motor (15) is fixed to the turntable (14).

4. A filling device for slag return circulation according to claim 3, characterized in that: One side of the screening box (9) is slidably connected to two baffles (16), one side of the two baffles (16) is fixed with a connecting block (17), one side of the mounting shell (1) close to the connecting block (17) is rotatably connected to a screw rod (18), one end of the mounting shell (1) close to the screw rod (18) is fixed with a third motor (19), an output end of the third motor (19) is fixed to the screw rod (18), the connecting block (17) is threadedly connected to the outer wall of the screw rod (18), and the connecting block (17) is slidably connected to the side wall of the mounting shell (1).

5. A filling device for slag return circulation according to claim 1, characterized in that: A connecting rod (20) is symmetrically fixed to the outer wall of the rotating shaft (8), one end of the connecting rod (20) away from the rotating shaft (8) is fixed to the electromagnet (6), and reinforcing ribs (21) are fixed on both sides of the connecting rod (20).

6. A filling device for slag return circulation according to claim 1, characterized in that: The first motor (7) is a reduction motor.

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