Fly ash heavy metal extraction and recovery device

Abstract

The utility model discloses a fly ash heavy metal extraction and recovery device, which relates to the technical field of power plant waste recovery equipment, and comprises a recovery box, two crushing rollers rotationally connected in the recovery box, a filter screen arranged in the recovery box, and a filter cartridge rotationally arranged in the recovery box, a driving motor is arranged in the recovery box, a filter screen is arranged in the recovery box, a cleaning assembly for cleaning the filter screen is arranged on one side of the recovery box, a mounting frame connected to one side of the recovery box is arranged in the cleaning assembly, and a reciprocating screw rod is rotationally connected in the mounting frame. The transmission block in threaded connection with the reciprocating screw rod drives the cleaning plate to move horizontally, then the cleaning plate can clean impurities accumulated on the transmission block, and due to the fact that the cleaning plate is tightly attached to the filter screen, the impurities cannot be brought back to the filter screen again in the return motion process, and the cleaning effect is improved. According to the utility model, the filtering effect of the filter screen can be effectively improved, and the fly ash recovery efficiency is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste recycling equipment in power plants, and specifically relates to a fly ash heavy metal extraction and recycling device. Background Art

[0002] Fly ash is a large amount of suspended particles and fine particles in the flue gas produced by the combustion of fuel during biomass power generation. These particles are called biomass fly ash. Fly ash contains a large amount of harmful substances, such as heavy metals, radioactive substances, etc., which will cause great harm to the environment and human health. The existing Chinese patent (application number: CN201820980142.2) discloses a waste treatment device for garbage incineration, including a support frame, a first shell and a second shell. The upper end of the support frame is welded with a second shell, and the inner wall of the second shell is provided with a limit strip. The limit strip A screen is arranged at the upper end, and a second limit block is arranged on the side wall of the second shell away from the limit bar, one end of the second limit block is clamped in the interior of the first filter screen, the interior of the first filter screen is a cavity structure, and the first filter screen and the opposite side wall where the second limit block is arranged are clamped with the first limit block, and the waste is crushed by the rotating crushing paddle to crush the large-sized waste in the waste, and the heavy metal substances in the waste will be adsorbed by the chitosan adsorbent in the first filter screen. After the heavy metals in the waste are adsorbed, the recycling rate of the metals in the waste can be improved.

[0003] During use, the above-mentioned device uses the two-layer filter screen to filter the fly ash and adsorb the heavy metals in the fly ash. However, there are certain problems during use. For example, when the above-mentioned device uses the filter screen to filter the crushed fly ash, no cleaning component is set on the filter screen. As the use time increases, the mesh of the filter screen is gradually clogged with impurities, which affects the subsequent filtering effect. It is undoubtedly troublesome to disassemble the entire filter screen for cleaning.

[0004] In view of this, this application is hereby filed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a fly ash heavy metal extraction and recovery device to achieve the purpose of improving the fly ash filtering effect.

[0006] In order to solve the above technical problems, the utility model provides a fly ash heavy metal extraction and recovery device, comprising: a recovery box, two crushing rollers rotatably connected to the recovery box, a filter screen arranged in the recovery box, and a filter cartridge rotatably arranged in the recovery box;

[0007] A cleaning component for cleaning the filter is provided on one side of the recycling box, the cleaning component includes a mounting frame connected to one side of the recycling box, a reciprocating screw is rotatably connected in the mounting frame, a transmission block is threadedly connected to the reciprocating screw, a cleaning plate for cleaning the filter is connected to the transmission block, a mounting port for supplying and sliding the cleaning plate is provided on one side of the recycling box, and a driving motor for driving the reciprocating screw to rotate is connected to one side of the mounting frame.

[0008] Furthermore, a feed pipe is connected to the top of the recovery box, and the feed pipe is a trapezoid that is wide at the top and narrow at the bottom. Support legs are connected to the four corners of the bottom of the recovery box.

[0009] Furthermore, a vibration motor is connected to the bottom of the filter, two mutually symmetrical fixing plates are connected in the recovery box, a plurality of compression springs are connected to the fixing plates, and the other end of the compression spring is connected to the filter.

[0010] Furthermore, a fixed frame is connected to one side of the recycling box, and feed ports are provided on the opposite sides of the fixed frame and the recycling box, and the two feed ports are connected. A spiral feeding rod is rotatably connected in the fixed frame, a pouring pipe is connected to one side of the fixed frame, and the other side of the pouring pipe is connected to the recycling box, and a servo motor that drives the spiral feeding rod to rotate is connected to the bottom of the fixed frame.

[0011] Furthermore, two mutually symmetrical mounting seats are connected in the recovery box, and the positions of the two mounting seats correspond to the two crushing rollers.

[0012] Furthermore, a linkage assembly for synchronously driving the filter cartridge to rotate is provided on one side of the recovery box, and the linkage assembly includes a transmission rod connected to one side of the filter cartridge, one end of the transmission rod extends to the outside of the recovery box, and the reciprocating screw rod and the transmission rod are both connected to synchronous wheels, and a synchronous belt is connected between the two synchronous wheels.

[0013] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0014] 1. In the utility model, the driving motor is started to drive the reciprocating screw to rotate, and the transmission block threadedly connected to the reciprocating screw drives the cleaning plate to move horizontally. Then the cleaning plate can clean the impurities accumulated on the transmission block. Since the cleaning plate fits tightly with the filter screen, the impurities will not be brought back to the filter screen again during the return movement. This setting can effectively improve the filtering effect of the filter screen and ensure the recovery efficiency of fly ash.

[0015] 2. In the utility model, when the driving motor drives the cleaning plate to clean the filter screen, it can also drive the synchronous wheel to rotate, and then drive the transmission rod to rotate through the transmission effect of the synchronous belt, and then the transmission rod can drive the filter cartridge to rotate. During the rotation process, the filter cartridge can easily come into full contact with the fallen fly ash impurities, thereby improving the utilization rate of the filter cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work. In the accompanying drawings:

[0017] Figure 1 It is a side view of the utility model;

[0018] Figure 2 It is a front view of the utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure of the cleaning component in the utility model;

[0020] Figure 4 for Figure 2 A magnified view of the structure at center.

[0021] Numbers in the figure:

[0022] 1. Recycling box; 2. Crushing roller; 3. Filter screen; 4. Cleaning assembly; 401. Mounting frame; 402. Reciprocating screw rod; 403. Transmission block; 404. Cleaning plate; 5. Driving motor; 6. Fixed frame; 7. Spiral feeding rod; 8. Discharge pipe; 9. Servo motor; 10. Filter cartridge; 11. Linkage assembly; 1101. Transmission rod; 1102. Synchronous wheel; 1103. Synchronous belt; 12. Vibration motor; 13. Fixed plate; 14. Compression spring.

[0023] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the process of filtering the crushed fly ash using the filter, no cleaning component is set on the filter. As the use time increases, the mesh of the filter is gradually clogged by impurities, thereby affecting the subsequent filtering effect. It is undoubtedly troublesome to disassemble the entire filter for cleaning.

[0028] Embodiment 1, as Figures 1 to 4 As shown, the utility model provides a fly ash heavy metal extraction and recovery device, comprising: a recovery box 1; two crushing rollers 2 rotatably connected in the recovery box 1 for crushing fly ash; in order to improve the crushing effect of the crushing rollers 2, two mutually symmetrical mounting seats are connected in the recovery box 1, and the positions of the two mounting seats correspond to the two crushing rollers 2, and the crushing rollers 2 can be used in conjunction with the mounting seats to further crush the fly ash; a filter screen 3 for filtering fly ash arranged in the recovery box 1; a filter cartridge 10 rotatably arranged in the recovery box 1 for adsorbing heavy metals in the fly ash; in order to facilitate the collection of the treated fly ash, a discharge port is opened on one side of the recovery box 1, and a sealing plate is rotatably connected to the discharge port; in order to facilitate feeding, a feed pipe is connected to the top of the recovery box 1, and the feed pipe is a trapezoidal shape with a wide top and a narrow bottom; in order to facilitate the support of the recovery box 1 and improve the stability during use, the four corners of the bottom of the recovery box 1 are connected with support legs;

[0029] A cleaning component 4 for cleaning the filter 3 is provided on one side of the recycling box 1. The cleaning component 4 includes a mounting frame 401 connected to one side of the recycling box 1. A reciprocating screw 402 is rotatably connected to the mounting frame 401. A transmission block 403 is threadedly connected to the reciprocating screw 402. In order to facilitate pushing the cleaning plate 404 to clean the filter 3, the transmission block 403 is set to an "L" shape, and an internal thread groove compatible with the reciprocating screw 402 is provided in the transmission block 403. A cleaning plate 404 for cleaning the filter 3 is connected to the transmission block 403, and the cleaning plate 404 fits tightly with the filter 3. A mounting port for supplying and sliding the cleaning plate 404 is provided on one side of the recycling box 1. A driving motor 5 for driving the reciprocating screw 402 to rotate is connected to one side of the mounting frame 401.

[0030] Specifically, the filter cartridge 10 is filled with a chitosan adsorbent for absorbing heavy metals in the fly ash. For details, please refer to the case (publication number: CN208711826U).

[0031] In the utility model, the cleaning component 4 is set to clean the impurities accumulated on the filter screen 3, thereby improving the recovery efficiency of fly ash. The drive motor 5 is started to drive the reciprocating screw 402 to rotate, and the transmission block 403 threadedly connected on the reciprocating screw 402 drives the cleaning plate 404 to move horizontally. Then, the cleaning plate 404 can clean the impurities accumulated on the transmission block 403. Since the cleaning plate 404 fits tightly with the filter screen 3, the impurities will not be brought back to the filter screen 3 again during the return movement. This setting can effectively improve the filtering effect of the filter screen 3 and ensure the recovery efficiency of fly ash.

[0032] Furthermore, as a specific implementation of the utility model, the utility model provides a fly ash heavy metal extraction and recovery device.

[0033] Specifically, Figure 2 and Figure 4 As shown, a vibration motor 12 is connected to the bottom of the filter 3, two symmetrical fixing plates 13 are connected in the recovery box 1, a plurality of compression springs 14 are connected to the fixing plates 13, and the other end of the compression spring 14 is connected to the filter 3.

[0034] In the utility model, firstly, starting the vibration motor 12 can drive the filter screen 3 to vibrate up and down, thereby improving the use effect of the filter screen 3 and preventing the crushed fly ash impurities from falling on only one point on the filter screen 3. Secondly, vibrating the filter screen 3 up and down can also shake off some small impurities blocked in the mesh of the filter screen 3, and the set compression spring 14 increases the vibration amplitude of the filter screen 3.

[0035] Furthermore, as another specific embodiment of the present invention, the present invention provides a fly ash heavy metal extraction and recovery device.

[0036] Specifically, Figure 2 As shown, a fixed frame 6 is connected to one side of the recycling box 1, and a feed port is opened on the opposite side of the fixed frame 6 and the recycling box 1, and the two feed ports are connected. A spiral feeding rod 7 is rotatably connected in the fixed frame 6, a pouring pipe 8 is connected to one side of the fixed frame 6, and the other side of the pouring pipe 8 is connected to the recycling box 1, and a servo motor 9 for driving the spiral feeding rod 7 to rotate is connected to the bottom of the fixed frame 6.

[0037] In the utility model, the fixed frame 6 is provided to collect the impurities cleaned by the cleaning plate 404, and the servo motor 9 is started to drive the spiral feeding rod 7 to rotate, so that the impurities collected in the fixed frame 6 are re-introduced into the recovery box 1 through the pouring pipe 8 for crushing again.

[0038] Embodiment 2 is based on embodiment 1.

[0039] A linkage assembly 11 for synchronously driving the filter cartridge 10 to rotate is provided on one side of the recovery box 1. The linkage assembly 11 includes a transmission rod 1101 connected to one side of the filter cartridge 10. One end of the transmission rod 1101 extends to the outside of the recovery box 1. The reciprocating screw rod 402 and the transmission rod 1101 are both connected to a synchronous wheel 1102. A synchronous belt 1103 is connected between the two synchronous wheels 1102 for transmission.

[0040] In the utility model, when the driving motor 5 drives the cleaning plate 404 to clean the filter screen 3, it can also drive the synchronous wheel 1102 to rotate, and then drive the transmission rod 1101 to rotate through the transmission effect of the synchronous belt 1103, and then the transmission rod 1101 can drive the filter cartridge 10 to rotate. During the rotation process, the filter cartridge 10 can easily make full contact with the fallen fly ash impurities, thereby improving the utilization rate of the filter cartridge 10.

[0041] Working principle: The cleaning component 4 can be used to clean the impurities accumulated on the filter screen 3, thereby improving the recovery efficiency of fly ash. The drive motor 5 is started to drive the reciprocating screw 402 to rotate, and the transmission block 403 threadedly connected to the reciprocating screw 402 drives the cleaning plate 404 to move horizontally. Then, the cleaning plate 404 can clean the impurities accumulated on the transmission block 403. Since the cleaning plate 404 fits tightly with the filter screen 3, the impurities will not be brought back to the filter screen 3 again during the return movement. This setting can effectively improve the filtering effect of the filter screen 3 and ensure the recovery efficiency of fly ash.

[0042] When the driving motor 5 drives the cleaning plate 404 to clean the filter screen 3, it can also drive the synchronous wheel 1102 to rotate, and then drive the transmission rod 1101 to rotate through the transmission effect of the synchronous belt 1103, and then the transmission rod 1101 can drive the filter cartridge 10 to rotate. During the rotation process, the filter cartridge 10 can easily make full contact with the fallen fly ash impurities, thereby improving the utilization rate of the filter cartridge 10.

[0043] The above is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the present invention.

Claims

1. A fly ash heavy metal extraction and recovery device, comprising: A recycling box (1), two crushing rollers (2) rotatably connected to the recycling box (1), a filter screen (3) disposed in the recycling box (1), and a filter cartridge (10) rotatably disposed in the recycling box (1); The invention is characterized in that a cleaning component (4) for cleaning the filter (3) is provided on one side of the recycling box (1), the cleaning component (4) comprises a mounting frame (401) connected to one side of the recycling box (1), a reciprocating screw (402) is rotatably connected inside the mounting frame (401), a transmission block (403) is threadedly connected to the reciprocating screw (402), a cleaning plate (404) for cleaning the filter (3) is connected to the transmission block (403), a mounting opening for supplying and sliding the cleaning plate (404) is provided on one side of the recycling box (1), and a driving motor (5) for driving the reciprocating screw (402) to rotate is connected to one side of the mounting frame (401).

2. The fly ash heavy metal extraction and recovery device according to claim 1, characterized in that: The top of the recovery box (1) is connected to a feed pipe, the feed pipe is a trapezoid that is wide at the top and narrow at the bottom, and the four corners of the bottom of the recovery box (1) are connected to support legs.

3. The fly ash heavy metal extraction and recovery device according to claim 1, characterized in that: The bottom of the filter screen (3) is connected to a vibration motor (12), and two mutually symmetrical fixing plates (13) are connected inside the recovery box (1). A plurality of compression springs (14) are connected to the fixing plates (13), and the other ends of the compression springs (14) are connected to the filter screen (3).

4. The fly ash heavy metal extraction and recovery device according to claim 1, characterized in that: One side of the recycling box (1) is connected to a fixed frame (6), and a feed port is provided on the opposite side of the fixed frame (6) and the recycling box (1), and the two feed ports are connected. A spiral feeding rod (7) is rotatably connected inside the fixed frame (6), and a pouring pipe (8) is connected to one side of the fixed frame (6), and the other side of the pouring pipe (8) is connected to the recycling box (1). A servo motor (9) for driving the spiral feeding rod (7) to rotate is connected to the bottom of the fixed frame (6).

5. The fly ash heavy metal extraction and recovery device according to claim 1, characterized in that: Two mutually symmetrical mounting seats are connected inside the recovery box (1), and the positions of the two mounting seats correspond to the two crushing rollers (2).

6. The fly ash heavy metal extraction and recovery device according to claim 1, characterized in that: A linkage assembly (11) for synchronously driving the filter cartridge (10) to rotate is arranged on one side of the recovery box (1), the linkage assembly (11) comprising a transmission rod (1101) connected to one side of the filter cartridge (10), one end of the transmission rod (1101) extending to the outside of the recovery box (1), the reciprocating screw rod (402) and the transmission rod (1101) are both connected to a synchronous wheel (1102), and a synchronous belt (1103) is connected between the two synchronous wheels (1102).

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