Device for adsorbing and screening fly ash raw materials through multi-stage filter screens and magnetic plates

Abstract

The utility model discloses a device for adsorbing and screening coal ash raw materials through a multi-stage filter screen and a magnetic plate. A device for adsorbing and screening coal ash raw materials through a multi-stage filter screen and a magnetic plate comprises a box body, and a multi-stage screening mechanism, a belt conveyor and a magnetic separation mechanism are arranged in the box body; the multi-stage screening mechanism comprises a supporting frame installed in the box body, the supporting frame is connected with a belt conveyor, a screening frame is arranged above the supporting frame, and a plurality of first springs are installed between the screening frame and the supporting frame. According to the device for adsorbing and screening the fly ash raw materials through the multi-stage filter screen and the magnetic plate, the box body, the multi-stage screening mechanism, the belt conveyor and the magnetic separation mechanism are arranged, so that fly ash can be subjected to multi-stage screening, filtering and magnetic separation, and particles or impurities which do not conform to specifications in the fly ash are screened out; the fly ash can meet subsequent processing requirements, continuous operation can be carried out, and the operation efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of fly ash screening equipment, in particular to a device for adsorbing and screening fly ash raw materials using a multi-stage filter screen and a magnetic plate. Background Art

[0002] Fly ash is one of the main solid wastes discharged by coal-fired power plants and thermal power plants. These fly ashes contain both valuable components, such as unburned carbon and certain metals, and useless components, such as large and small solid particles. In order to improve the efficiency of energy recovery and utilization, these fly ashes need to be sorted and processed to separate the useful components from the useless components.

[0003] A fly ash screening device is currently disclosed, comprising a box body, a feed hopper is provided on the top of the box body, a feed pipe is fixedly connected to the bottom of the feed hopper, a feed port is opened on the top of the box body, the bottom end of the feed pipe passes through the feed port and extends into the box body; by pulling the U-shaped pull rod, the iron removal box slides to the bottom of the ferromagnetic plate, and the iron impurities on the ferromagnetic plate are cleaned under the iron removal box, and then the iron removal box is taken out, and the cleaned iron impurities are poured out to prevent the iron impurities from falling, thereby improving the quality of screening and solving the problem that the iron impurities on the magnetic plate may fall back onto the guide plate during the subsequent cleaning process, and fall into the screening net as the guide plate shakes, which will affect the production quality of the fly ash during the later processing.

[0004] However, all the fly ash collected by the device is concentrated in the collection box at the bottom. Once the collection box is full, the device must stop running, transfer the fly ash in the collection box out, and then continue to operate. Therefore, it is impossible to operate continuously for a long time, the use is not convenient, and the processing efficiency of the device is reduced.

[0005] Therefore, it is necessary to provide a multi-stage filter and magnetic plate adsorption and screening fly ash raw material device to solve the above technical problems. Utility Model Content

[0006] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a multi-stage filter and magnetic plate adsorption and screening fly ash raw material device which can perform continuous operation and has higher operating efficiency.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0008] The device for adsorbing and screening fly ash raw materials by using a multi-stage filter screen and a magnetic plate comprises a box body, on which a feed port and a discharge port are installed, and a multi-stage screening mechanism, a belt conveyor and a magnetic separation mechanism are installed in the box body.

[0009] Preferably, the multi-stage screening mechanism includes a support frame installed in a box body, the support frame is connected to the support of the belt conveyor, a screening frame is provided above the support frame, a plurality of first springs are installed between the screening frame and the support frame, the support frame and the screening frame are elastically connected through the first springs, a first screen and a second screen are obliquely installed on the screening frame, a dual-axis motor and an elliptical shaft are installed on one side of the support frame, one output shaft of the dual-axis motor is connected to the power shaft of the belt conveyor after being decelerated by a gearbox to provide power to the belt conveyor, and the other output shaft of the dual-axis motor is connected to the elliptical shaft through a gear or belt drive to drive the elliptical shaft to rotate.

[0010] Preferably, a first material guide trough is obliquely installed on one side of the first screen, and a second material guide trough is obliquely installed on one side of the second screen.

[0011] Preferably, a plurality of second springs are installed on the top of the screening rack, and the top ends of the second springs are connected to the top of the box body.

[0012] Preferably, a first collecting box and a second collecting box are placed in the box body, and the first collecting box and the second collecting box are aligned with the first material guiding trough and the second material guiding trough respectively.

[0013] Preferably, a first sealing door and a second sealing door are installed on one side of the box body, and the first sealing door and the second sealing door are used to align the multi-stage screening mechanism and the magnetic separation mechanism respectively.

[0014] Preferably, the magnetic separation mechanism includes a magnetic plate arranged in a box body, a track is installed in the box body, a trolley is installed on the track, a first electric push rod is installed on one side of the trolley, one end of the first electric push rod is connected to the inner wall of the box body, a second electric push rod is installed at the bottom of the trolley, and the bottom end of the second electric push rod is connected to the magnetic plate.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] (1) The utility model can perform multi-stage screening and filtration and magnetic separation on fly ash by providing a box, a multi-stage screening mechanism, a belt conveyor and a magnetic separation mechanism, thereby screening out particles or impurities that do not meet the specifications in the fly ash, so that the fly ash can meet the requirements of subsequent processing, and can perform continuous operation with higher operating efficiency;

[0017] (2) The utility model is provided with a multi-stage screening mechanism including a support frame, a screening frame, a first spring, a first screen, a second screen, a double-axis motor and an elliptical axis, so that fly ash can be conveniently screened multiple times to remove fly ash or impurities that do not meet the specifications, and the utility model shares a power source with the belt conveyor, which is convenient for maintenance and control;

[0018] (3) The utility model can conveniently discharge fly ash or impurities that do not meet the specifications by providing the first material guide trough and the second material guide trough;

[0019] (4) The utility model can improve the stability of the screening frame by installing a plurality of second springs on the top of the screening frame;

[0020] (5) The utility model can conveniently collect fly ash or impurities that do not meet the specifications by placing a first collection box and a second collection box in the box body;

[0021] (6) The utility model can conveniently adjust the distance between the magnetic plate and the fly ash and can conveniently clean the magnetic material at the bottom of the magnetic plate by setting a magnetic separation mechanism including a magnetic plate, a track, a trolley, a first electric push rod, and a second electric push rod;

[0022] (7) The utility model provides a first sealing door and a second sealing door installed on one side of the box body, which can facilitate the inspection or cleaning of the multi-stage screening mechanism and the magnetic separation mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of a device for adsorbing and screening fly ash raw materials using a multi-stage filter screen and a magnetic plate provided by the utility model;

[0024] Figure 2 for Figure 1 The schematic cross-sectional structure diagram of the device for adsorbing and screening fly ash raw materials using a multi-stage filter and a magnetic plate is shown;

[0025] Figure 3 for Figure 1 The schematic diagram of the structure of the multi-stage screening mechanism in the device for adsorbing and screening fly ash raw materials with a multi-stage filter and a magnetic plate is shown;

[0026] Figure 4 for Figure 1 The schematic diagram of the structure of the screening frame in the device for adsorbing and screening fly ash raw materials with a multi-stage filter and a magnetic plate is shown;

[0027] Figure 5 for Figure 1 The structure diagram of the magnetic separation mechanism in the multi-stage filter and magnetic plate adsorption and screening fly ash raw material device shown.

[0028] Among them, the names corresponding to the figure marks are: 1-box, 2-feed port, 3-discharge port, 4-multi-stage screening mechanism, 5-belt conveyor, 6-magnetic separation mechanism, 7-support frame, 8-screening frame, 9-first spring, 10-first screen, 11-first material guide trough, 12-second screen, 13-second material guide trough, 14-dual-axis motor, 15-elliptical axis, 16-second spring, 17-trolley, 18-first electric push rod, 19-track, 20-magnetic plate, 21-second electric push rod, 22-first collecting box, 23-second collecting box, 24-first sealing door, 25-second sealing door. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The present invention includes but is not limited to the following embodiments.

[0030] like Figure 1-5 As shown, the multi-stage filter and magnetic plate adsorption and screening fly ash raw material device provided by the utility model includes: a box body 1, a feed port 2 and a discharge port 3 are installed on the box body 1, a multi-stage screening mechanism 4, a belt conveyor 5 and a magnetic separation mechanism 6 are installed in the box body 1, and the fly ash is fed into the multi-stage screening mechanism 4 in the box body 1 through the feed port 2 for multi-stage screening. The fly ash that meets the specifications after screening falls on the belt conveyor 5 for transportation. In this process, the magnetic separation mechanism 6 absorbs the magnetic material in the fly ash transported on the belt conveyor 5, and the fly ash after magnetic separation is transported from the discharge port 4 to the outside of the box body 1 via the belt conveyor 5, and then transported to other processes for processing via other conveyors or transportation equipment, thereby realizing uninterrupted screening operations and higher operating efficiency.

[0031] By providing a box 1, a multi-stage screening mechanism 4, a belt conveyor 5 and a magnetic separation mechanism 6, the fly ash can be subjected to multi-stage screening, filtration and magnetic separation, and particles or impurities that do not meet the specifications in the fly ash can be screened out, so that the fly ash can meet the subsequent processing requirements, and the operation can be carried out uninterruptedly, with higher operating efficiency.

[0032] Embodiment 2:

[0033] like Figure 3-4 As shown, the multi-stage screening mechanism 4 includes a support frame 7 installed in the box body 1, the support frame 7 is connected to the bracket of the belt conveyor 5, a screening frame 8 is arranged above the support frame 7, a plurality of first springs 9 are arranged between the screening frame 8 and the support frame 7, the support frame 7 and the screening frame 8 are elastically connected by the first springs 9, a first screen 10 and a second screen 12 are obliquely installed on the screening frame 8, a double-axis motor 14 and an elliptical shaft 15 are installed on one side of the support frame 7, one output shaft of the double-axis motor 14 is connected to the power shaft of the belt conveyor 5 after being decelerated by a gearbox, so as to provide power to the belt conveyor 5, and the other output shaft of the double-axis motor 14 is connected to the power shaft of the belt conveyor 5 through a gear or a belt The transmission is connected to the elliptical shaft 15 and is used to drive the elliptical shaft 15 to rotate. When in use, the dual-shaft motor 14 is started to make it run, thereby driving the belt conveyor 5 to run. At the same time, the elliptical shaft 15 rotates. When the elliptical shaft 15 rotates, it intermittently touches the bottom of the screening frame 8, so that one side of it is in a reciprocating process of rising-lowering-rising. Due to the action of the first spring 9, the screening frame 8 vibrates, thereby causing the first screen 10 and the second screen 12 to vibrate. The first screen 10 performs preliminary screening of the fly ash, and the screened fly ash falls on the second screen 12 for secondary screening. The fly ash that meets the specifications falls from the bottom of the second screen 12 onto the belt conveyor 5.

[0034] By setting up a multi-stage screening mechanism 4 including a support frame 7, a screening frame 8, a first spring 9, a first screen 10, a second screen 12, a dual-axis motor 14 and an elliptical shaft 15, fly ash can be conveniently screened multiple times to remove fly ash or impurities that do not meet the specifications, and it shares a power source with the belt conveyor 5, which is convenient for maintenance and control.

[0035] Embodiment 3:

[0036] like Figure 4 As shown, a first material guide trough 11 is obliquely installed on one side of the first screen 10, and a second material guide trough 13 is obliquely installed on one side of the second screen 12. When in use, substandard fly ash or impurities screened out on the first screen 10 are discharged from the first material guide trough 11, and similarly, substandard fly ash or impurities screened out on the second screen 12 are discharged from the second material guide trough 13.

[0037] By providing the first material guide trough 11 and the second material guide trough 13, fly ash or impurities that do not meet the specifications can be easily discharged.

[0038] Embodiment 4:

[0039] like Figure 2-4 As shown, a plurality of second springs 16 are installed on the top of the screening rack 8, and the top ends of the second springs 16 are connected to the top of the box body 1. When in use, the top of the screening rack 8 is connected to the box body 1 through the second springs 16, thereby enhancing the stability of the screening rack 8.

[0040] By installing a plurality of second springs 16 on the top of the screening frame 8, the stability of the screening frame 8 can be improved.

[0041] Embodiment 5:

[0042] like Figure 2-4 As shown, a first collecting box 22 and a second collecting box 23 are placed in the box body 1. The first collecting box 22 and the second collecting box 23 are aligned with the first material guide trough 11 and the second material guide trough 13 respectively. When in use, fly ash or impurities that do not meet the specifications fall from the first material guide trough 11 and the second material guide trough 13 into the first collecting box 22 and the second collecting box 23 respectively, and are processed collectively after the first collecting box 22 and the second collecting box 23 are full.

[0043] By placing the first collecting box 22 and the second collecting box 23 in the box body 1, fly ash or impurities that do not meet the specifications can be easily collected.

[0044] Embodiment 6:

[0045] like Figure 1As shown, a first sealing door 24 and a second sealing door 25 are installed on one side of the box body 1. The first sealing door 24 and the second sealing door 25 are respectively used to align the multi-stage screening mechanism 4 and the magnetic separation mechanism 6, so as to facilitate the maintenance or cleaning of the two.

[0046] By installing the first sealing door 24 and the second sealing door 25 on one side of the box body 1, it is convenient to inspect or clean the multi-stage screening mechanism 4 and the magnetic separation mechanism 6.

[0047] Embodiment 7:

[0048] like Figure 2 and Figure 5 As shown, the magnetic separation mechanism 6 includes a magnetic plate 20 arranged in the box body 1, a track 19 is installed in the box body 1, a trolley 17 is installed on the track 19, a first electric push rod 18 is installed on one side of the trolley 1, one end of the first electric push rod 18 is connected to the inner wall of the box body 1, and a second electric push rod 21 is installed at the bottom of the trolley 17, and the bottom end of the second electric push rod 21 is connected to the magnetic plate 20. When in use, the second electric push rod 21 is started to extend or shorten its output shaft, thereby adjusting the distance between the magnetic plate 20 and the top of the belt conveyor 5, and then adjusting the distance between the magnetic plate 20 and the fly ash, so that the magnetic substance in the fly ash can be better absorbed. When the magnetic substance at the bottom of the magnetic plate 20 accumulates more, the first electric push rod 18 is started to extend its output shaft, thereby moving the trolley 17 out of the second sealing door 25, and the trolley 17 moves along the track 19 to extend part of the magnetic plate 20 from the second sealing door 25, so that it is convenient for manual cleaning of the magnetic substance at the bottom of the magnetic plate 20, and the cleaning is more convenient.

[0049] By setting up the magnetic separation mechanism 6 including the magnetic plate 20, the track 19, the trolley 17, the first electric push rod 18 and the second electric push rod 21, the distance between the magnetic plate 20 and the fly ash can be easily adjusted, and the magnetic material at the bottom of the magnetic plate 20 can be easily cleaned.

[0050] Working principle: when in use, fly ash is fed into the multi-stage screening mechanism 4 in the box body 1 through the feed port 2 for multi-stage screening. The fly ash that meets the specifications after screening falls on the belt conveyor 5 for transportation. In this process, the magnetic separation mechanism 6 absorbs the magnetic substances in the fly ash transported on the belt conveyor 5. The fly ash after magnetic separation is transported from the discharge port 4 to the outside of the box body 1 via the belt conveyor 5, and then transported to other processes for processing via other conveyors or transportation equipment, thereby achieving uninterrupted screening operations and higher operating efficiency.

Claims

1. A device for adsorbing and screening fly ash raw materials using a multi-stage filter screen and a magnetic plate, characterized in that: include: A box body (1), wherein a multi-stage screening mechanism (4), a belt conveyor (5) and a magnetic separation mechanism (6) are arranged in the box body (1); The multi-stage screening mechanism (4) comprises a support frame (7) installed in the box body (1), the support frame (7) is connected to the belt conveyor (5), a screening frame (8) is arranged above the support frame (7), a plurality of first springs (9) are installed between the screening frame (8) and the support frame (7), a first screen (10) and a second screen (12) are obliquely installed on the screening frame (8), a double-axis motor (14) and an elliptical shaft (15) are installed on one side of the support frame (7), and the double-axis motor (14) is connected to the belt conveyor (5) and the elliptical shaft (15).

2. A device for adsorbing and screening fly ash raw materials using a multi-stage filter screen and a magnetic plate according to claim 1, characterized in that: A first material guide trough (11) is obliquely mounted on one side of the first screen (10), and a second material guide trough (13) is obliquely mounted on one side of the second screen (12).

3. The device for adsorbing and screening fly ash raw materials by using a multi-stage filter screen and a magnetic plate according to claim 1, characterized in that: A plurality of second springs (16) are installed on the top of the screening frame (8), and the top ends of the second springs (16) are connected to the box body (1).

4. The device for adsorbing and screening fly ash raw materials by using a multi-stage filter screen and a magnetic plate according to claim 1, characterized in that: A first collection box (22) and a second collection box (23) are placed in the box body (1).

5. The device for adsorbing and screening fly ash raw materials using a multi-stage filter screen and a magnetic plate (20) according to claim 1, characterized in that: The magnetic separation mechanism (6) comprises a magnetic plate (20) arranged in the box (1); a track (19) is installed in the box (1); a trolley (17) is installed on the track (19); a first electric push rod (18) is installed on one side of the trolley (17); one end of the first electric push rod (18) is connected to the box (1); a second electric push rod (21) is installed at the bottom of the trolley (17); the bottom end of the second electric push rod (21) is connected to the magnetic plate (20).

6. The device for adsorbing and screening fly ash raw materials by using a multi-stage filter screen and a magnetic plate according to claim 1, characterized in that: A first sealing door (24) and a second sealing door (25) are installed on one side of the box body (1).

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