Energy-saving iron removal equipment capable of degrading bamboo powder

Abstract

The invention relates to the field of degradable materials, in particular to energy-saving iron removal equipment for degradable bamboo powder, which comprises a shell and a conveyor belt, the shell is provided with a conveying belt. In the iron removal process, along with operation of the conveying belt and the electromagnet strips, the iron scrap adsorption position is continuously changed, each electromagnet strip on the conveying belt can adsorb a large amount of iron scraps, the iron scrap accumulation phenomenon cannot occur in the same area, and it is guaranteed that the iron scraps cannot be adsorbed by the electromagnet strips in one work cycle. In order to avoid the problem that in the prior art, iron scraps adsorbed by a permanent magnet plate can be gradually stacked and raised on the permanent magnet plate, follow-up bamboo powder is prevented from sliding downwards, and the iron removal work is hindered, the iron removal efficiency is improved, and the iron removal efficiency is improved. The iron removal work can be carried out again after the iron scraps on the permanent magnet plate are removed, and the overall working efficiency is too low.

Description

Technical Field

[0001] This invention relates to the field of biodegradable materials, and more particularly to an energy-saving iron removal device for biodegradable bamboo powder. Background Technology

[0002] Bamboo, as a natural, green, environmentally friendly, and biodegradable renewable resource, is receiving increasing attention, and the applications of bamboo products are becoming increasingly widespread. Bamboo powder, processed from bamboo, can be used not only as a raw material for welding rods and electrical components, but also as an adsorbent and reducing agent in the metallurgical industry, a raw material for manufacturing leather clothing and eco-friendly tableware, and even has a place in the food industry. Bamboo powder needs to be sieved to obtain appropriately sized particles. However, bamboo powder often contains iron filings after exiting the crushing equipment. Currently, most methods involve manually turning the crushed bamboo powder and using magnetic rods to remove iron before sieving. This method is labor-intensive, inefficient, and yields poor iron removal results.

[0003] An existing Chinese patent (CN220460984U) describes a bamboo powder iron filings removal device. This device uses a feeding auger to evenly feed bamboo powder into a screening box. A blowing fan then disperses the bamboo powder and sends it to a permanent magnet plate. The bamboo powder slides down the permanent magnet plate onto a screen, where the magnetic force attracts the iron filings, effectively removing iron and improving efficiency. However, when using the inclined permanent magnet plate to attract the iron filings, the attracted iron filings gradually accumulate and bulge on the plate, hindering the subsequent sliding of bamboo powder. This obstructs the iron removal process. To avoid this problem, frequent power interruptions are required to allow all the iron filings to slide off and be removed before the iron removal process can resume, resulting in low overall efficiency. Summary of the Invention

[0004] In order to overcome the shortcomings of the problems mentioned in the background, the present invention provides an energy-saving iron removal device for biodegradable bamboo powder.

[0005] Technical solution: An energy-saving iron removal device for biodegradable bamboo powder includes a shell, a conveyor belt, and a feeding box; the conveyor belt is installed on the shell; the feeding box is fixedly connected to the shell; it also includes electromagnet bars; the conveyor belt is provided with a number of electromagnet bars arranged in an array along the curved curve of the conveyor belt; the feeding box has a feeding port; the shell has an inlet and an outlet, and the inlet is connected to the feeding box.

[0006] To further explain, the lower part of the shell is designed as a triangular structure that is larger at the top and smaller at the bottom.

[0007] Further explanation: It also includes a mounting bracket, an electric actuator, a connecting pipe, and an airbag; the housing is fixedly connected to the mounting bracket; the mounting bracket is equipped with several electric actuators; the telescopic parts of all electric actuators are fixedly connected to a connecting pipe, and the connecting pipe is connected to an external air pump; the connecting pipe is fitted with an airbag; the connecting pipe has several air vents, and the air vents are located in the middle of the airbag, and the connecting pipe is connected to the inside of the airbag through the air vents.

[0008] Further explanation: It also includes an electric push rod 2, a connecting pipe 2, and an airbag 2; the mounting bracket is equipped with several electric push rods 2; the telescopic parts of all electric push rods 2 are fixedly connected to a connecting pipe 2, and the connecting pipe 2 is connected to an external air pump; the connecting pipe 2 is sleeved with an airbag 2; the connecting pipe 2 has several symmetrically distributed air outlets 2, and the air outlets 2 are located at the ends of the airbag 2, and the connecting pipe 2 is connected to the inside of the airbag 2 through the air outlets 2.

[0009] Further explanation: It also includes a perforated plate, a sealing plate, a wedge block, a spring telescopic rod, and a lever; the material box is fixedly connected to the perforated plate; the perforated plate has several through slots; the perforated plate is slidably connected to several symmetrically distributed sealing plates; each sealing plate has several through slots, and the through slots cooperate with the through slots; each sealing plate is fixedly connected to a wedge block; each wedge block is provided with a spring telescopic rod, and the fixed part of the spring telescopic rod is fixedly connected to the housing; each electromagnet bar is provided with several symmetrically distributed levers, and the levers cooperate with the wedge blocks.

[0010] To further explain, the feeding box is tilted with the left side higher than the right.

[0011] Further explanation: It also includes corrugated plates; several corrugated plates are fixedly connected to the housing, and all the corrugated plates are arranged opposite to each other; all the electromagnet bars are slidably connected to the conveyor belt.

[0012] To further explain, it also includes airbags three; each electromagnet bar is provided with several airbags three that are symmetrically distributed, and the other end of the airbags three is connected to the conveyor belt.

[0013] To further explain, the fold of the airbag has several air vents.

[0014] To further explain, it also includes a baffle plate; the feeding box is fixedly connected to the baffle plate, which is equipped with several soft brush strips with elastic deformation capability, and the brush strips on the baffle plate are in contact with the conveyor belt.

[0015] The beneficial effects of this invention are as follows: 1. During the iron removal process, as the conveyor belt and electromagnet bars operate, the position of the adsorbed iron filings is constantly changing. Each electromagnet bar on the conveyor belt can adsorb a large amount of iron filings, and there will be no accumulation of iron filings in the same area. This ensures that the electromagnet bars can maintain a good iron removal effect throughout a working cycle. In this way, the problem of iron filings adsorbed by the permanent magnet plate gradually piling up and bulging on the permanent magnet plate, blocking the subsequent bamboo powder from sliding down, is solved in the prior art. In order to avoid this problem, it is necessary to frequently cut off the power to allow all the iron filings on the permanent magnet plate to slide off and be removed before the iron removal work can be carried out again, resulting in low overall work efficiency.

[0016] 2. The present invention uses an airbag to push the iron filings adsorbed on the surface of the electromagnet strip, moving them from the middle to both ends of the electromagnet strip surface, so that the iron filings can be evenly distributed in various areas of the electromagnet strip surface, thus avoiding the difference in the adsorption and iron removal effect in different areas of the electromagnet strip surface.

[0017] 3. In this invention, the second airbag propels the iron filings adsorbed on the surface of the electromagnet strip from both ends toward the center. This allows the iron filings to first gather in the center of the electromagnet strip surface, and then the first airbag moves the iron filings from the center to both ends. This ensures that the iron filings are evenly distributed across the surface of the electromagnet strip, and prevents the areas at the edges of the electromagnet strip that are already in a state of iron filings from becoming even more severely accumulated.

[0018] 4. In this invention, when the lever passes the wave plate, the peak of the wave plate pushes the lever and the electromagnet strip towards the trough of the opposite wave plate. This is repeated multiple times, causing the electromagnet strip to sway back and forth. This results in bamboo powder appearing in some areas of the electromagnet strip, which can be spread evenly on other areas of the electromagnet strip surface, ensuring that all areas of the electromagnet strip surface can play a role in removing iron, and further improving the iron removal effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure disclosed in this invention; Figure 2 This is a schematic diagram of the conveyor belt structure disclosed in this invention; Figure 3 This is a schematic diagram of the structure of the electromagnet bar disclosed in this invention; Figure 4 This is a schematic diagram of the combined structure of the electric push rod 1, connecting tube 1, airbag 1, electric push rod 2, connecting tube 2 and airbag 2 disclosed in this invention; Figure 5 This is a cross-sectional view of the combined structure of connecting pipe one and connecting pipe two disclosed in this invention; Figure 6This is a schematic diagram of the combined structure of the perforated plate and the sealing plate disclosed in this invention; Figure 7 This is an exploded view of the structure of the perforated plate and sealing plate disclosed in this invention.

[0020] The markings in the attached diagram are as follows: 1-Shell, 2-Conveyor belt, 3-Feeding box, 4-Electromagnetic strip, 5-Mounting bracket, 6-Electric push rod one, 7-Connecting pipe one, 8-Airbag one, 10-Electric push rod two, 11-Connecting pipe two, 12-Airbag two, 20-Perforated plate, 21-Sealing plate, 22-Wedge block, 23-Spring telescopic rod, 24-Pulley, 30-Wave plate, 31-Airbag three, 40-Pulley plate, 1001-Inlet, 1002-Outlet, 3001-Feeding port, 7001-Air outlet one, 11001-Air outlet two, 2a-Through groove one, 21001-Through groove two, 31001-Air outlet three. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions herein are used to explain the present invention, but are not intended to limit the present invention.

[0022] Example 1 An energy-saving iron removal device for biodegradable bamboo powder, such as Figures 1-7 As shown, it includes a housing 1, a conveyor belt 2, and a feeding box 3; the housing 1 is equipped with the conveyor belt 2; the housing 1 is bolted to the feeding box 3; it also includes electromagnet bars 4; the conveyor belt 2 is provided with a plurality of electromagnet bars 4 arranged in an array along the curved curve of the conveyor belt 2; the feeding box 3 has a feeding port 3001; the housing 1 has an inlet 1001 and an outlet 1002, and the inlet 1001 is connected to the feeding box 3.

[0023] The lower part of the shell 1 is designed with a triangular structure that is larger at the top and smaller at the bottom, so that the bamboo powder falling from the conveyor belt 2 and the electromagnet bar 4 can be quickly gathered together and easily collected.

[0024] The specific workings of this invention are as follows: First, connect the conveyor belt 2 and the electromagnet bar 4 to the controller electrically; Next, the electromagnet bar 4 is energized to enable it to attract magnetically, and then the conveyor belt 2 is controlled to drive the electromagnet bar 4 to rotate counterclockwise from a front-to-back perspective. Next, bamboo powder to be removed from iron is fed into the feed box 3 through the feed inlet 1001. The bamboo powder then slides down onto the conveyor belt 2 through the discharge port 3001 and comes into contact with the electromagnet strip 4. During this process, the iron filings in the bamboo powder will be attracted by the electromagnet strip 4. The bamboo powder that is not attracted by the electromagnet strip 4 will move with the operation of the conveyor belt 2 and, under the action of gravity, detach from the conveyor belt 2 and fall downwards, and be discharged from the discharge port 1002. At this time, the bamboo powder that has completed iron removal is collected by the external bamboo powder collection device, thereby realizing the basic iron removal work of bamboo powder.

[0025] After completing one work cycle, i.e., one batch of bamboo powder iron removal, stop feeding the bamboo powder to be iron removed into the feed box 3 from the feed inlet 1001. Control the conveyor belt 2 to drive the electromagnet bar 4 to continue running for one more revolution, ensuring that all the bamboo powder on the conveyor belt 2 and the electromagnet bar 4 falls downwards. After this, only the iron filings attracted by the electromagnet bar 4 during the iron removal process remain on the conveyor belt 2 and the electromagnet bar 4. At this point, first stop supplying power to the electromagnet bar 4, so that the electromagnet bar 4 temporarily loses its magnetic attraction, and then control the conveyor belt 2 to drive the electromagnet bar 4 to run for one more revolution. The iron filings that were originally attracted by the electromagnet strip 4 will, after losing the attraction of the electromagnet strip 4, move with the operation of the conveyor belt 2. When they reach the lower part of the conveyor belt 2, they will be detached from the conveyor belt 2 under the action of gravity and fall downwards. They will then be discharged from the discharge port 1002 and collected by the external iron filings collection device. Subsequently, the electromagnet strip 4 will be powered again to enable it to have magnetic attraction. The conveyor belt 2 will then be controlled to drive the electromagnet strip 4 to rotate counterclockwise from front to back to carry out the iron removal work for the next batch of bamboo powder.

[0026] During the iron removal process described above, as the conveyor belt 2 and the electromagnet strips 4 operate, the position of the iron filings is constantly changing. Each electromagnet strip 4 on the conveyor belt 2 can adsorb a large amount of iron filings, and there will be no accumulation of iron filings in the same area. This ensures that the electromagnet strips 4 can maintain a good iron removal effect throughout a working cycle. In this way, the problem of iron filings adsorbed by the permanent magnet plate gradually piling up and bulging on the permanent magnet plate, blocking the subsequent bamboo powder from sliding down, is solved in the existing technology. In order to avoid this problem, it is necessary to frequently cut off the power so that all the iron filings on the permanent magnet plate can slide off and be removed before the iron removal work can be carried out again, resulting in low overall work efficiency.

[0027] Example 2 Based on the above embodiment 1, as follows Figures 2-5As shown, it also includes a mounting bracket 5, an electric push rod 6, a connecting pipe 7, and an airbag 8; the housing 1 is bolted to the mounting bracket 5; the mounting bracket 5 is equipped with at least two electric push rods 6; the telescopic parts of all electric push rods 6 are fixedly connected to a connecting pipe 7, and the connecting pipe 7 is connected to an external air pump; the connecting pipe 7 is sleeved with the airbag 8; the connecting pipe 7 has several air outlets 7001, and the air outlets 7001 are located in the middle of the airbag 8, and the connecting pipe 7 is connected to the inside of the airbag 8 through the air outlets 7001.

[0028] It also includes an electric push rod 2 10, a connecting pipe 2 11, and an airbag 2 12; the mounting bracket 5 is equipped with at least two electric push rods 2 10; the telescopic parts of all electric push rods 2 10 are fixedly connected to a connecting pipe 2 11, and the connecting pipe 2 11 is connected to an external air pump; the connecting pipe 2 11 is fitted with an airbag 2 12; the connecting pipe 2 11 has several symmetrically distributed air outlets 2 11001, and the air outlets 2 11001 are located at the ends of the airbag 2 12, and the connecting pipe 2 11 is connected to the inside of the airbag 2 12 through the air outlets 2 11001.

[0029] The specific workings of this invention are as follows: The amount of iron filings contained in the same volume of bamboo powder is not fixed. Therefore, the bamboo powder falling from the feed port 3001 onto the electromagnet bar 4 will result in different amounts of iron filings in different areas of the same electromagnet bar 4. If a certain area is repeatedly in contact with bamboo powder with a high iron filings content, the iron filings in that area will gradually accumulate and form an iron filings layer on the surface of the electromagnet bar 4. In the same working cycle, the magnetic attraction and iron removal capacity of that area will be significantly reduced compared to other areas on the same electromagnet bar 4. This results in poor adsorption and iron removal effect on the iron filings in the bamboo powder that subsequently falls into that area. Under the weak adsorption effect, some iron filings in the bamboo powder will fall downwards due to gravity and mix with the collected bamboo powder, affecting the iron removal effect of the bamboo powder.

[0030] Therefore, during the aforementioned iron removal process, when the electromagnet bar 4 moves to such a position... Figure 3 When the airbag-8 is positioned relative to the electromagnet strip 4, the electric push rod-6 is controlled to move the connecting pipe-7 and the airbag-8 toward the electromagnet strip 4, so that the airbag-8 is in contact with the electromagnet strip 4. Then, the external air pump is controlled to inject gas into the airbag-8 through the air outlet-7001 on the connecting pipe-7, so that the airbag-8 gradually expands from the middle to both ends. During the expansion process, the airbag-8 pushes the iron filings adsorbed on the surface of the electromagnet strip 4 and moves them from the middle to both ends on the surface of the electromagnet strip 4, so that the iron filings can be evenly distributed in various areas of the surface of the electromagnet strip 4, thus avoiding the difference in the adsorption and iron removal effect in various areas of the surface of the electromagnet strip 4.

[0031] However, the area where iron filings accumulate is not fixed in the middle of the surface of the electromagnet strip 4. The airbag 8 pushes the iron filings from the middle of the surface of the electromagnet strip 4 to both ends, which may cause the areas at the edges of the electromagnet strip 4 that were originally in a state of iron filings accumulation to have a more serious accumulation phenomenon.

[0032] Therefore, when the electromagnet bar 4 moves to such a position Figure 3 When the airbag 12 is positioned relative to the other two airbags, the electric push rod 10 controls the connecting pipe 11 and the airbag 12 to move towards the electromagnet strip 4 and fit into it. Then, the external air pump controls the airbag 12 to inject gas into it through the air outlet 11001 on the connecting pipe 11, causing the airbag 12 to gradually expand from both ends towards the center. During the expansion, the airbag 12 pushes the iron filings adsorbed on the surface of the electromagnet strip 4, moving them from both ends towards the center. This allows the iron filings to first gather in the center of the surface of the electromagnet strip 4, and then the subsequent airbag 8 moves the iron filings from the center to both ends of the surface of the electromagnet strip 4. This ensures that the iron filings are evenly distributed across the surface of the electromagnet strip 4, and prevents the areas at the edges of the electromagnet strip 4 that are already in a state of iron filings from accumulating more severely.

[0033] Example 3 Based on the above embodiment 2, as Figures 3-7 As shown, it also includes a perforated plate 20, a sealing plate 21, a wedge block 22, a spring telescopic rod 23, and a lever 24; the feed box 3 is bolted to the perforated plate 20; the perforated plate 20 has several through slots 2a; the perforated plate 20 is slidably connected to at least two symmetrically distributed sealing plates 21; each sealing plate 21 has several through slots 21001, and the through slots 21001 cooperate with the through slots 2a; each sealing plate 21 is fixedly connected to a wedge block 22; each wedge block 22 is provided with a spring telescopic rod 23, and the fixed part of the spring telescopic rod 23 is fixedly connected to the housing 1; each electromagnet bar 4 is provided with at least two symmetrically distributed levers 24, and the levers 24 cooperate with the wedge blocks 22.

[0034] The feeding box 3 is tilted with the left side higher than the right side, so that the powder in the feeding box 3 can naturally slide down to the lower right and gather without external driving force.

[0035] It also includes a corrugated plate 30; at least two corrugated plates 30 are fixedly connected to the housing 1, and all the corrugated plates 30 are arranged opposite to each other; all the electromagnet bars 4 are slidably connected to the conveyor belt 2.

[0036] It also includes airbags 31; each electromagnet bar 4 is provided with at least two airbags 31 that are symmetrically distributed, and the other end of the airbags 31 is connected to the conveyor belt 2.

[0037] The fold of the airbag 31 has several air vents 31001. When the airbag 31 is compressed, the air inside the airbag 31 will be ejected from the air vents 31001. The airflow ejected from the air vents 31001 blows open the bamboo powder at the fold of the airbag 31, thus preventing the fold of the airbag 31 from being unable to retract properly due to the accumulation of bamboo powder.

[0038] It also includes a deflector plate 40; the feeding box 3 is bolted to the deflector plate 40, the deflector plate 40 is provided with several soft brush strips with elastic deformation capability, and the brush strips on the deflector plate 40 are in contact with the conveyor belt 2. When the conveyor belt 2 passes the deflector plate 40, the brush strips on the deflector plate 40 push the bamboo powder and iron filings that have fallen on the conveyor belt 2 and are located between the two electromagnet bars 4 toward the electromagnet bars 4, so as to prevent the bamboo powder and iron filings that have fallen on the conveyor belt 2 and are located between the two electromagnet bars 4 from being difficult to be removed by the electromagnet bars 4.

[0039] The specific workings of this invention are as follows: In the existing technology, when bamboo powder is fed in, the bamboo powder sliding down from the permanent magnet plate will stop or even back under the action of the opposing fan, resulting in serious accumulation of bamboo powder. If the bamboo powder that has been de-ironed will mix with the bamboo powder that has not been de-ironed after it backs away, the iron removal work will have to be repeated, which seriously affects the work efficiency.

[0040] Therefore, this application controls the conveyor belt 2 to drive the electromagnet bar 4 while simultaneously causing the lever 24 to move synchronously with the electromagnet bar 4. As the lever 24 passes the wedge block 22, such as Figure 4As shown, lever 24 actuates two wedge blocks 22, causing them to move in opposite directions. This compresses the telescopic part of spring telescopic rod 23, while simultaneously causing two sealing plates 21 to slide in opposite directions on perforated plate 20. This connects the second through groove 21001 on sealing plate 21 with the first through groove 2a on perforated plate 20, allowing bamboo powder in feeding box 3 to fall sequentially through feeding port 3001, through groove 2a, and through groove 21001 onto conveyor belt 2 and electromagnet strip 4. After lever 24 passes the wedge blocks 22, sealing plates 21 and wedge blocks 22 move and reset towards each other under the resetting action of spring telescopic rod 23, thus connecting the sealing plates 21 with the first through groove 2a. 2a is blocked to allow the next lever 24 to pass; thus, a feeding operation is performed when each lever 24 passes the wedge block 22; since the electromagnet strips 4 are distributed in a curved array on the conveyor belt 2, the distance between every two levers 24 is the same, and therefore the interval between every two levers 24 passing the wedge block 22 is also the same, so that the feeding amount each time is small and uniform, and there is no accumulation on the conveyor belt 2 and the electromagnet strips 4. This solves the problem in the prior art where bamboo powder sliding down from the permanent magnet plate will stop or even back under the action of the opposing fan, resulting in serious accumulation of bamboo powder.

[0041] Meanwhile, after the bamboo powder falls onto the conveyor belt 2 and the electromagnet strip 4, when the lever 24 passes the wave plate 30, the peak of the wave plate 30 pushes the lever 24 and the electromagnet strip 4 towards the trough of the opposite wave plate 30. This is repeated many times, causing the electromagnet strip 4 to sway back and forth. This results in some areas of the electromagnet strip 4 having raised bamboo powder, which can then be spread evenly over other areas of the surface of the electromagnet strip 4, ensuring that all areas of the surface of the electromagnet strip 4 can play a role in removing iron, and further improving the iron removal effect.

[0042] When the electromagnet bar 4 swings back and forth, the air bladders 31 at both ends of the electromagnet bar 4 adaptively stretch and contract. The air bladders 31 cover the gap between the electromagnet bar 4 and the inner front and inner rear walls of the shell 1, preventing bamboo powder from entering the gap, causing bamboo powder accumulation, cleaning problems, and preventing the electromagnet bar 4 from moving normally.

[0043] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of this disclosure should not be limited to the above embodiments, but should be defined not only by the appended claims, but also by their equivalents.

Claims

1. An energy-saving iron removal device for biodegradable bamboo powder, comprising a shell (1), a conveyor belt (2), and a feeding box (3); the conveyor belt (2) is installed on the shell (1); the feeding box (3) is fixedly connected to the shell (1); characterized in that: It also includes an electromagnet bar (4); the conveyor belt (2) is provided with several electromagnet bars (4) arranged in an array along the curved curve of the conveyor belt (2); the feeding box (3) is provided with a feeding port (3001); the housing (1) is provided with an inlet (1001) and an outlet (1002), and the inlet (1001) is connected to the feeding box (3).

2. The energy-saving iron removal equipment for biodegradable bamboo powder according to claim 1, characterized in that: The lower part of the shell (1) is set as a triangular structure with a larger top and a smaller bottom.

3. The energy-saving iron removal equipment for biodegradable bamboo powder according to claim 1, characterized in that: It also includes a mounting bracket (5), an electric push rod (6), a connecting pipe (7), and an airbag (8); the housing (1) is fixedly connected to the mounting bracket (5); the mounting bracket (5) is equipped with several electric push rods (6); the telescopic parts of all the electric push rods (6) are fixedly connected to a connecting pipe (7), and the connecting pipe (7) is connected to an external air pump; the connecting pipe (7) is sleeved with an airbag (8); the connecting pipe (7) has several air outlets (7001), and the air outlets (7001) are located in the middle of the airbag (8), and the connecting pipe (7) is connected to the inside of the airbag (8) through the air outlets (7001).

4. The energy-saving iron removal equipment for biodegradable bamboo powder according to claim 3, characterized in that: It also includes an electric push rod 2 (10), a connecting pipe 2 (11) and an airbag 2 (12); the mounting bracket (5) is equipped with several electric push rods 2 (10); the telescopic parts of all electric push rods 2 (10) are fixedly connected to a connecting pipe 2 (11), and the connecting pipe 2 (11) is connected to an external air pump; the connecting pipe 2 (11) is sleeved with an airbag 2 (12); the connecting pipe 2 (11) has several symmetrically distributed air outlets 2 (11001), and the air outlets 2 (11001) are located at the end of the airbag 2 (12), and the connecting pipe 2 (11) is connected to the inside of the airbag 2 (12) through the air outlets 2 (11001).

5. The energy-saving iron removal equipment for biodegradable bamboo powder according to claim 4, characterized in that: It also includes a perforated plate (20), a sealing plate (21), a wedge block (22), a spring telescopic rod (23), and a lever (24); the feed box (3) is fixedly connected to the perforated plate (20); the perforated plate (20) has several through slots (2a); the perforated plate (20) is slidably connected to several symmetrically distributed sealing plates (21); each sealing plate (21) has several through slots (21001), and the through slots (21001) cooperate with the through slots (2a); each sealing plate (21) is fixedly connected to a wedge block (22); each wedge block (22) is provided with a spring telescopic rod (23), and the fixed part of the spring telescopic rod (23) is fixedly connected to the housing (1); each electromagnet bar (4) is provided with several symmetrically distributed levers (24), and the levers (24) cooperate with the wedge blocks (22).

6. The energy-saving iron removal equipment for biodegradable bamboo powder according to claim 5, characterized in that: The feeding box (3) is tilted with the left side higher than the right side.

7. The energy-saving iron removal equipment for biodegradable bamboo powder according to claim 6, characterized in that: It also includes a wave plate (30); the housing (1) is fixed with several wave plates (30), and all the wave plates (30) are arranged opposite to each other; all the electromagnet bars (4) are slidably connected to the conveyor belt (2).

8. The energy-saving iron removal equipment for biodegradable bamboo powder according to claim 7, characterized in that: Also includes There are three airbags (31); each electromagnet bar (4) is provided with several airbags (31) arranged symmetrically, and the other end of the airbags (31) is connected to the conveyor belt (2).

9. An energy-saving iron removal device for biodegradable bamboo powder according to any one of claims 7-8, characterized in that: Several air vents (31001) are provided at the fold of the airbag (31).

10. An energy-saving iron removal device for biodegradable bamboo powder according to claim 9, characterized in that: It also includes a baffle plate (40); the feeding box (3) is fixedly connected to the baffle plate (40), the baffle plate (40) is provided with several soft brush strips with elastic deformation capability, and the brush strips on the baffle plate (40) are in contact with the conveyor belt (2).

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