Bamboo pulp raw material metal impurity removing device and method

Abstract

The invention discloses a bamboo pulp raw material metal impurity removing device and method, and relates to the technical field of bamboo pulp processing.The bamboo pulp raw material metal impurity removing device is characterized in that a lifting mechanism is connected with a sleeve and used for adjusting the height of the sleeve, and the inner wall of the sleeve is tightly attached to the outer wall of a discharging pipe; a transverse rod is arranged in the discharging pipe, a vertical rod is arranged at the bottom of the transverse rod, and an electromagnet hemisphere is arranged at the bottom of the vertical rod and located in the sleeve. The top of the tray is opened and arranged at the top of the horizontal plate; the rotating mechanism comprises a first motor, a gear, a gear ring and an arc-shaped scraper, the first motor is arranged at the bottom of the horizontal plate, an output shaft of the first motor penetrates through the horizontal plate and then is connected with the gear, the gear is meshed with the gear ring, the gear ring is rotationally arranged on the outer wall of the tray, and the arc-shaped scraper is fixedly connected to the gear ring through a support; the linear stroke mechanism is connected with the horizontal plate and used for moving the horizontal plate towards the hemisphere direction of the electromagnet. When the material disc moves to the position under the electromagnet hemisphere, the arc-shaped scraping plate is tightly attached to the outer wall of the electromagnet hemisphere. According to the scheme, metal impurities adsorbed in the crushing equipment can be automatically removed.

Description

Technical Field

[0001] The present invention relates to the technical field of bamboo pulp processing, and in particular to a device and method for removing metal impurities from bamboo pulp raw materials. Background Art

[0002] Bamboo is the raw material for making bamboo pulp. The production process involves cutting the bamboo into small segments, crushing it into bamboo chips, screening the chips, and then washing and steaming them. However, this process lacks the necessary metal removal. Existing methods typically use magnetic force to separate metal impurities. However, once the metal impurities are adsorbed onto a magnetic separator, the separator must be manually removed regularly to remove the metal impurities. However, the magnetic separator is installed inside the discharge pipe of the crushing equipment, making it difficult to remove. Summary of the Invention

[0003] In order to solve the deficiencies of the prior art, the present invention provides a device and method for removing metal impurities from bamboo pulp raw materials, which can automatically remove metal impurities adsorbed in crushing equipment.

[0004] In order to achieve the purpose of the present invention, the following scheme is proposed: A device for removing metal impurities from bamboo pulp raw materials is provided at a discharge pipe of crushing equipment. The device comprises a linear travel mechanism, a rotating mechanism, a material tray, a lifting mechanism and a sleeve.

[0005] The lifting mechanism is installed on the support frame, and its lifting end is connected to the sleeve to adjust the height of the sleeve. The inner wall of the sleeve is close to the outer wall of the discharge pipe; The discharge pipe is arranged vertically, with a horizontal bar inside, a vertical bar at the bottom of the horizontal bar, and an electromagnet hemisphere at the bottom of the vertical bar. The electromagnet hemisphere is located below the discharge pipe and inside the sleeve; The top of the material tray is open and is located on the top of the horizontal plate. The inner diameter of the material tray is larger than the diameter of the electromagnet hemisphere; The rotating mechanism includes a first motor, a gear, a gear ring and an arc-shaped scraper. The first motor is arranged at the bottom of the horizontal plate. The output shaft of the first motor passes through the horizontal plate and is connected to the gear. The gear is engaged with the gear ring. The gear ring is rotatably arranged on the outer wall of the material tray. The arc-shaped scraper is located above the material tray and is fixedly connected to the gear ring through a bracket. The linear travel mechanism is provided on two support plates, which are connected to the horizontal plate and are used to move the horizontal plate toward the electromagnet hemisphere; when the material tray moves with the horizontal plate to the bottom of the electromagnet hemisphere, the arc scraper is close to the outer wall of the electromagnet hemisphere.

[0006] Furthermore, a circular ring is provided at one end of the horizontal plate facing the electromagnet hemisphere, a material tray is coaxially arranged on the circular ring, a material outlet is provided at the bottom of the material tray, and a sealing cover is threadedly connected to the material outlet.

[0007] Furthermore, the lifting mechanism adopts a lifting rod driven by a pneumatic cylinder or an oil cylinder, the top of the lifting rod is connected to a crossbeam, and the crossbeam is connected to the outer wall of the sleeve.

[0008] Furthermore, the linear stroke mechanism includes a second motor, a smooth rod, a screw and a slider. The smooth rod and the screw are arranged in parallel between two support plates. The second motor is arranged on the outer wall of one of the support plates, and its output shaft is used to drive the screw. The slider is slidably fitted with the smooth rod, and the thread is fitted with the screw. The slider is fixedly connected to the horizontal plate.

[0009] Furthermore, a gathering tube is provided in the discharge tube, the inner diameter of the top of the gathering tube is larger than the inner diameter of the bottom thereof, the vertical rod is located in the gathering tube, and the vertical rod is located on the central axis of the gathering tube.

[0010] A method for removing metal impurities from bamboo pulp raw materials, using the device, comprises the following steps: S1, the discharging pipe releases the bamboo pieces, and the electromagnet hemisphere absorbs the metal impurities in the bamboo pieces; S2. After the crushing equipment stops running, the lifting mechanism moves the casing upward until the electromagnet hemisphere is completely exposed; S3, the linear travel mechanism moves the horizontal plate toward the electromagnet hemisphere. The tray stops just before it moves to the bottom of the electromagnet hemisphere. The electromagnet hemisphere is powered off, and the metal impurities fall into the tray. S4, the linear travel mechanism continues to move the horizontal plate until the material tray moves to the bottom of the electromagnet hemisphere, at which point the curved scraper is close to the outer wall of the electromagnet hemisphere; S5. The first motor drives the gear, which causes the gear ring and the arc scraper to rotate. The arc scraper scrapes away the metal impurities and debris remaining on the outer wall of the electromagnet hemisphere during the rotation process.

[0011] The beneficial effects of the present invention are: 1. The electromagnet hemisphere of this embodiment is suspended below the discharge pipe. This design serves two purposes: ① The electromagnet hemisphere is located in the sleeve, and an annular channel is formed between the electromagnet hemisphere and the inner wall of the sleeve. After the electromagnet hemisphere absorbs metal impurities in the bamboo chips, the annular channel is used for the circulation of the bamboo chips; ② After the sleeve is moved upward, the electromagnet hemisphere can be completely exposed, so that the material tray can be moved below the electromagnet hemisphere, and the inner wall of the arc scraper can be closely attached to the outer wall of the electromagnet hemisphere.

[0012] 2. The electromagnet hemisphere in this embodiment is magnetic when energized so as to absorb metal impurities. The electromagnet hemisphere loses its magnetism when the power is off. By utilizing this principle and cleverly coordinating with the rotating mechanism and the material tray, when it is necessary to remove metal impurities from the electromagnet hemisphere, the material tray can be moved under the electromagnet hemisphere to collect the metal impurities. This process does not require disassembly of the electromagnet hemisphere and does not require manual intervention.

[0013] 3. The structure of the rotating mechanism is very clever. When the material tray moves to the bottom of the electromagnet hemisphere, the arc scraper is just in close contact with the outer wall of the electromagnet hemisphere. When the arc scraper rotates, it can scrape off the metal impurities and debris remaining on the outer wall of the electromagnet hemisphere. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Shows a structural diagram of a metal impurity removal device; Figure 2 Shows a cutaway view of the discharge tube and sleeve; Figure 3 Shows the structure diagram of the rotating mechanism and the material tray; Figure 4 Shows the front view of the rotating mechanism and the tray; Figure 5 A horizontal plate structure diagram is shown; Figure 6 A top view of a metal impurity removal device is shown; Figure 7 The figure shows the state after the casing is moved upward; Figure 8 The diagram shows the state where the material tray moves to the position directly below the electromagnet hemisphere; Figure 9 A flow chart of the metal impurity removal method is shown. DETAILED DESCRIPTION

[0015] Example 1 like Figure 1 As shown, this embodiment provides a device for removing metal impurities from bamboo pulp raw materials, which is arranged at the discharge pipe 1 of the crushing equipment. The device includes a linear travel mechanism 6, a rotating mechanism 2, a material tray 3, a lifting mechanism 4 and a sleeve 5.

[0016] Specifically, the lifting mechanism 4 is provided on the support frame 41 , and the lifting end of the lifting mechanism 4 is connected to the sleeve 5 for adjusting the height of the sleeve 5 , and the inner wall of the sleeve 5 is in close contact with the outer wall of the discharge pipe 1 .

[0017] More specifically, Figure 1 As shown, there are many ways to implement the lifting mechanism 4. In this embodiment, the lifting mechanism 4 adopts a lifting rod driven by a cylinder or an oil cylinder. The top of the lifting rod is connected to the crossbeam 42, and the crossbeam 42 is connected to the outer wall of the sleeve 5.

[0018] Specifically, such as Figure 1 As shown, the crushing device is installed on the support frame 41, and the discharge pipe 1 is vertically installed at the bottom of the crushing device. The crushing device is used to crush the bamboo into bamboo chips, and the discharge pipe 1 is used to release the bamboo chips into the screening device below the crushing device. Figure 2As shown, a horizontal bar 11 is provided in the discharge pipe 1, a vertical bar 12 is provided at the bottom of the horizontal bar 11, an electromagnet hemisphere 13 is provided at the bottom of the vertical bar 12, the electromagnet hemisphere 13 is located below the discharge pipe 1, and the electromagnet hemisphere 13 is located in the sleeve 5, the electromagnet hemisphere 13 and the inner wall of the sleeve 5 form an annular channel, the electromagnet hemisphere 13 is used to absorb metal impurities in the bamboo chips, and the annular channel is used for the circulation of bamboo chips.

[0019] The electromagnet hemisphere 13 in this embodiment is connected to the power supply and the control module. The control module is used to control the on and off of the power supply. The electromagnet hemisphere 13 is magnetic when the power is on and loses its magnetism when the power is off. This principle belongs to conventional technology and will not be elaborated here. For example, the power cord of the electromagnet hemisphere 13 can be set in the vertical rod 12, and then the control module can control the on and off of the power supply by means of a button or remote control.

[0020] In order to make the bamboo piece more fully contact the electromagnet hemisphere 13, as Figure 2 As shown, a gathering tube 14 is further provided in the discharge tube 1. The inner diameter of the top of the gathering tube 14 is larger than the inner diameter of the bottom thereof, and the inner diameter of the bottom of the gathering tube 14 is smaller than the diameter of the electromagnet hemisphere 13. The vertical rod 12 is located in the gathering tube 14, and the vertical rod 12 is located on the central axis of the gathering tube 14. After the bamboo pieces are released from the bottom of the gathering tube 14, they will first contact the top of the electromagnet hemisphere 13 and then continue to fall.

[0021] Specifically, such as Figure 3 、 Figure 4 As shown, the top of the material tray 3 is open, and the material tray 3 is fixed on the top of the horizontal plate 31. The rotating mechanism 2 includes a first motor 21, a gear 22, a gear ring 23 and an arc-shaped scraper 24. The first motor 21 is arranged at the bottom of the horizontal plate 31. The output shaft of the first motor 21 passes through the horizontal plate 31 and is connected to the gear 22. The gear 22 is engaged with the gear ring 23. The gear ring 23 is rotatably arranged on the outer wall of the material tray 3. The arc-shaped scraper 24 is located above the material tray 3, and the bottom of the arc-shaped scraper 24 is fixedly connected to the gear ring 23 through a bracket 25.

[0022] Specifically, such as Figure 1 As shown, the linear stroke mechanism 6 is provided on two support plates 61, and the linear stroke mechanism 6 is connected to the horizontal plate 31, and is used to horizontally move the horizontal plate 31, the rotating mechanism 2 and the material tray 3 as a whole toward the sleeve 5; when the material tray 3 moves to just below the electromagnet hemisphere 13, the inner wall of the arc scraper 24 is close to the outer wall of the electromagnet hemisphere 13, and the inner diameter of the material tray 3 is larger than the diameter of the electromagnet hemisphere 13. The material tray 3 is used to collect metal impurities that fall after the electromagnet hemisphere 13 is powered off, and the arc scraper 24 is used to further scrape off the metal impurity debris remaining in the electromagnet hemisphere 13.

[0023] More specifically, there are many ways to implement the linear travel mechanism 6, such as Figure 1 、 Figure 6As shown, the linear travel mechanism 6 in this embodiment includes a second motor 62, a smooth rod 63, a screw 64, and a slider 65. The smooth rod 63 and the screw 64 are arranged in parallel between the two support plates 61, wherein the smooth rod 63 is fixed and the screw 64 is rotatable. The second motor 62 is arranged on the outer wall of one of the support plates 61. The output shaft of the second motor 62 is used to drive the screw 64. The slider 65 is slidably engaged with the smooth rod 63 and threadedly engaged with the screw 64. The slider 65 is fixedly connected to the horizontal plate 31. During use, the second motor 62 drives the screw 64 to move the slider 65 and the horizontal plate 31 horizontally.

[0024] More specifically, as mentioned above, the material tray 3 is used to collect the metal impurities that fall down after the electromagnet hemisphere 13 is powered off. In order to facilitate the release of the metal impurities collected in the material tray 3, this embodiment adopts the following measures: Figure 4 、 Figure 5 As shown, a circular ring 32 is provided at one end of the horizontal plate 31 away from the first motor 21, and the material tray 3 is coaxially arranged on the circular ring 32. A discharge port is provided at the bottom of the material tray 3, and a cover 33 is threadedly connected to the discharge port. When in use, the cover 33 is opened to release the metal impurities in the material tray 3.

[0025] Example 2 like Figure 9 As shown, this embodiment provides a method for removing metal impurities from bamboo pulp raw materials, using the bamboo pulp raw material metal impurity removal device described in Example 1, and the method includes the following steps: S1. The crushing equipment crushes the bamboo into bamboo chips. The discharging pipe 1 releases the bamboo chips. The bamboo chips first enter the gathering pipe 14, touch the electromagnet hemisphere 13 and then fall down. During this process, the electromagnet hemisphere 13 will absorb the metal impurities in the bamboo chips.

[0026] S2. After the crushing equipment stops running, the lifting mechanism 4 moves the sleeve 5 upward until the electromagnet hemisphere 13 is completely exposed. Figure 7 shown.

[0027] S3, the linear stroke mechanism 6 moves the horizontal plate 31, the rotating mechanism 2 and the material tray 3 as a whole horizontally toward the electromagnet hemisphere 13. The material tray 3 stops before it is about to move directly under the electromagnet hemisphere 13. Note that the electromagnet hemisphere 13 is already within the range of the material tray 3 at this time. Then the electromagnet hemisphere 13 is powered off and loses its adsorption force. The metal impurities fall into the material tray 3 under the action of gravity.

[0028] S4, the linear travel mechanism 6 continues to move the horizontal plate 31 until the tray 3 moves to the bottom of the electromagnet hemisphere 13. At this time, the arc scraper 24 is close to the outer wall of the electromagnet hemisphere 13. Figure 8 shown.

[0029] S5. The first motor 21 drives the gear 22. The gear 22 causes the gear ring 23 and the arc-shaped scraper 24 to rotate. The arc-shaped scraper 24 scrapes away the metal impurities and debris remaining on the outer wall of the electromagnet hemisphere 13 during the rotation process.

[0030] One thing to explain here is that in step S3, before the material tray 3 is about to move to directly under the electromagnet hemisphere 13, the electromagnet hemisphere 13 must be powered off to allow most of the metal impurities to fall off before the material tray 3 is moved to directly under the electromagnet hemisphere 13. Otherwise, when the arc scraper 24 moves horizontally toward the electromagnet hemisphere 13, the metal impurities on the electromagnet hemisphere 13 may hinder the movement of the arc scraper 24, resulting in the arc scraper 24 being unable to cling to the outer wall of the electromagnet hemisphere 13, and further resulting in the metal impurities stuck between the arc scraper 24 and the electromagnet hemisphere 13 not falling off after the electromagnet hemisphere 13 is powered off.

[0031] In summary, the electromagnet hemisphere 13 provided in this embodiment can absorb metal impurities in bamboo chips; when it is necessary to remove metal impurities on the electromagnet hemisphere 13, there is no need to disassemble the electromagnet hemisphere 13, only need to move the sleeve 5 upward, and then move the material tray 3 to the bottom of the electromagnet hemisphere 13. After the electromagnet hemisphere 13 is powered off, the metal impurities adsorbed on its surface will automatically fall into the material tray 3, and this process does not require human participation; in order to more fully remove the metal impurity debris remaining on the outer wall of the electromagnet hemisphere 13, this embodiment is further provided with a rotating mechanism 2. The structure of the rotating mechanism 2 is very clever. When the material tray 3 moves to the bottom of the electromagnet hemisphere 13, the arc scraper 24 is just in close contact with the outer wall of the electromagnet hemisphere 13. When the arc scraper 24 rotates, it can scrape off the metal impurity debris remaining on the outer wall of the electromagnet hemisphere 13.

[0032] The above embodiments are only used to illustrate the technical ideas and features of the present invention and are not intended to be exclusive or limit the present invention. It should be understood by those skilled in the art that various changes or equivalent substitutions made to the present invention without departing from the scope of the present invention are within the scope of protection of the present invention.

Claims

1. A device for removing metal impurities from bamboo pulp raw materials, characterized in that: The device is located at the discharge pipe (1) of the crushing equipment, and includes a linear travel mechanism (6), a rotation mechanism (2), a material tray (3), a lifting mechanism (4), and a sleeve (5); The lifting mechanism (4) is provided on the support frame (41), and the lifting end thereof is connected to the sleeve (5) for adjusting the height of the sleeve (5), and the inner wall of the sleeve (5) is in close contact with the outer wall of the discharge pipe (1); The discharge pipe (1) is arranged vertically, and a horizontal rod (11) is provided therein, a vertical rod (12) is provided at the bottom of the horizontal rod (11), an electromagnet hemisphere (13) is provided at the bottom of the vertical rod (12), and the electromagnet hemisphere (13) is located below the discharge pipe (1) and inside the sleeve (5); The top of the material tray (3) is open and is located on the top of the horizontal plate (31). The inner diameter of the material tray (3) is larger than the diameter of the electromagnet hemisphere (13); The rotating mechanism (2) includes a first motor (21), a gear (22), a gear ring (23) and an arc-shaped scraper (24). The first motor (21) is arranged at the bottom of the horizontal plate (31). The output shaft of the first motor (21) passes through the horizontal plate (31) and is connected to the gear (22). The gear (22) is meshed with the gear ring (23). The gear ring (23) is rotatably arranged on the outer wall of the material tray (3). The arc-shaped scraper (24) is located above the material tray (3). The arc-shaped scraper (24) is fixedly connected to the gear ring (23) through a bracket (25). The linear travel mechanism (6) is provided on two support plates (61) and is connected to the horizontal plate (31) for moving the horizontal plate (31) toward the electromagnet hemisphere (13); when the material tray (3) moves with the horizontal plate (31) to the position directly below the electromagnet hemisphere (13), the arc-shaped scraper (24) is in close contact with the outer wall of the electromagnet hemisphere (13).

2. The device for removing metal impurities from bamboo pulp raw materials according to claim 1, characterized in that: A circular ring (32) is provided at one end of the horizontal plate (31) facing the electromagnet hemisphere (13), and the material tray (3) is coaxially arranged on the circular ring (32). A discharge port is provided at the bottom of the material tray (3), and a sealing cover (33) is threadedly connected to the discharge port.

3. The device for removing metal impurities from bamboo pulp raw materials according to claim 1, characterized in that: The lifting mechanism (4) adopts a lifting rod driven by an air cylinder or an oil cylinder, the top of the lifting rod is connected to a crossbeam (42), and the crossbeam (42) is connected to the outer wall of the sleeve (5).

4. The device for removing metal impurities from bamboo pulp raw materials according to claim 1, characterized in that: The linear travel mechanism (6) includes a second motor (62), a smooth rod (63), a screw rod (64) and a slider (65). The smooth rod (63) and the screw rod (64) are arranged in parallel between two support plates (61). The second motor (62) is arranged on the outer wall of one of the support plates (61). The output shaft of the second motor is used to drive the screw rod (64). The slider (65) is slidably fitted on the smooth rod (63) and threadedly fitted on the screw rod (64). The slider (65) is fixedly connected to the horizontal plate (31).

5. The device for removing metal impurities from bamboo pulp raw materials according to claim 1, characterized in that: A gathering tube (14) is further provided in the discharge tube (1), the inner diameter of the top of the gathering tube (14) is larger than the inner diameter of the bottom thereof, the vertical rod (12) is located in the gathering tube (14), and the vertical rod (12) is located on the central axis of the gathering tube (14).

6. A method for removing metal impurities from bamboo pulp raw materials, characterized in that: Using the device according to any one of claims 1 to 5, the method comprises the following steps: S1, the discharge pipe (1) releases the bamboo pieces, and the electromagnet hemisphere (13) absorbs the metal impurities in the bamboo pieces; S2. After the crushing equipment stops running, the lifting mechanism (4) moves the sleeve (5) upward until the electromagnet hemisphere (13) is completely exposed; S3, the linear travel mechanism (6) moves the horizontal plate (31) toward the electromagnet hemisphere (13), and the material tray (3) stops before it moves to the bottom of the electromagnet hemisphere (13), the electromagnet hemisphere (13) is powered off, and the metal impurities fall into the material tray (3); S4, the linear travel mechanism (6) continues to move the horizontal plate (31) until the material tray (3) moves to the bottom of the electromagnet hemisphere (13), at which time the arc scraper (24) is in close contact with the outer wall of the electromagnet hemisphere (13); S5. The first motor (21) drives the gear (22), and the gear (22) causes the gear ring (23) and the arc scraper (24) to rotate. During the rotation process, the arc scraper (24) scrapes away the metal impurities and debris remaining on the outer wall of the electromagnet hemisphere (13).

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