Device and method for treating secondary aluminum ash

Abstract

The invention relates to the technical field of aluminum ash treatment, in particular to a secondary aluminum ash treatment device and method.The secondary aluminum ash treatment device comprises a tank body, a driving part installed in the middle of the top end of the tank body and a stirring part rotationally arranged in the tank body, and the stirring part comprises a stirring shaft rotationally connected into the tank body; a plurality of groups of stirring blades are uniformly arranged outside the stirring shaft in the circumferential direction, and the tops of the stirring blades are connected with sliding rods; and the driving part comprises a turntable rotationally arranged above the stirring shaft. The stirring blades can radially move relative to the stirring shaft, so that the stirring of aluminum ash in a normal state is ensured, and the aluminum ash on the inner wall of the tank body can be scraped off in an extension state; according to the stirring device, the stirring blades are arranged in the axial direction and the radial direction, discharging of aluminum ash is facilitated, the stirring blades are twisted in the circumferential direction in the axial direction or the radial direction, meanwhile, a concave angle is formed in each stirring blade through axial twisting and radial twisting, and when the stirring blades rotate, the aluminum ash can be automatically collected into the concave angles.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum ash processing, in particular to a device and method for processing secondary aluminum ash. Background Art

[0002] Aluminum ash is a solid hazardous waste generated during the production process of the aluminum industry. It can be divided into primary aluminum ash and secondary aluminum ash according to the different content of metallic aluminum in the aluminum ash. The aluminum ash slag scraped out from the smelting furnace is called primary aluminum ash, also known as "white aluminum ash"; secondary aluminum ash is the aluminum ash produced after the metallic aluminum is extracted from the primary aluminum ash. It contains a large amount of harmful substances and needs to be utilized and disposed of in accordance with hazardous waste standards.

[0003] The secondary aluminum ash treatment device is a harmless aluminum ash treatment device, which can achieve the fixed fluorine and ammonia removal of aluminum ash to meet the usable standards. It mainly puts aluminum ash, water and detergent into a tank and stirs them. As the stirring proceeds, the fluorine can be locked in the aluminum ash and the ammonia can be separated. The washed aluminum ash is then discharged and dehydrated to achieve harmless treatment. However, the washed aluminum ash will adhere to the inner wall of the tank, which is not conducive to discharge. Summary of the invention

[0004] Aiming at the problem that the washed aluminum ash in the prior art adheres to the inner wall of the tank, which is not conducive to discharge, the present invention provides a device and method for treating secondary aluminum ash. The specific technical scheme is as follows:

[0005] On the one hand, the present application provides a secondary aluminum ash processing device, comprising a tank body, a driving part installed in the middle of the top of the tank body, and a stirring part rotatably arranged in the tank body, wherein the stirring part comprises a stirring shaft rotatably connected in the tank body, and a plurality of groups of stirring blades are evenly arranged around the outside of the stirring shaft, and a sliding rod is connected to the top of the stirring blade;

[0006] The driving part comprises a turntable rotatably arranged above the stirring shaft, and the turntable is provided with an arc-shaped slideway corresponding to the slide rod;

[0007] The rotating disk is driven by an external force to rotate relative to the stirring shaft and drive the stirring blades to extend outward.

[0008] As a further technical solution of the present invention, the driving part includes an output motor installed in the middle of the top of the tank body, the output end of the output motor is connected to an output shaft, the other end of the output shaft extends and is inserted into the tank body, the extended end of the output shaft is provided with a socket 1, and the turntable is provided with a socket;

[0009] A second socket is provided on the top of the stirring shaft, and a plug rod is connected between the stirring shaft and the output shaft, one end of the plug rod is inserted into the first socket, and the other end of the plug rod passes through the jack and is inserted into the second socket;

[0010] The insertion rod is driven to rise and fall by an external force and changes between a first state and a second state;

[0011] In the first state, the insertion rod passes through the insertion hole and is inserted into the second socket, forcing the turntable and the stirring shaft to rotate synchronously;

[0012] In the second state, the insertion rod is inserted into the insertion hole, allowing the turntable and the stirring shaft to rotate relative to each other.

[0013] As a further technical solution of the present invention, the insertion rod is connected to a sleeve outside, the sleeve is rotatably connected to a connecting plate outside, a hydraulic push rod is installed on the top of the tank body, and the output end of the hydraulic push rod is inserted into the tank body and connected to the connecting plate.

[0014] As a further technical solution of the present invention, the outside of the insertion rod has a plurality of radially extending ribs.

[0015] As a further technical solution of the present invention, a feed inlet and an exhaust port are spaced apart at the top of the tank body, and a drain port and a discharge port are spaced apart at the bottom of the tank body.

[0016] As a further technical solution of the present invention, the stirring blades are twisted from bottom to top along the rotation direction of the stirring shaft, and the stirring blades are twisted from outside to inside along the rotation direction of the stirring shaft.

[0017] As a further technical solution of the present invention, the stirring blade has a concave angle, and in the extended state, the discharge port corresponds to the concave angle.

[0018] As a further technical solution of the present invention, the turntable and the stirring shaft are rotatably connected.

[0019] As a further technical solution of the present invention, a guide groove is provided in the stirring blade, a guide rod is radially extended outwardly from the stirring shaft, and the guide rod is inserted into the guide groove.

[0020] On the other hand, the present application also provides a method for a secondary aluminum ash processing device, and the specific steps are as follows:

[0021] S1, material preparation;

[0022] Put aluminum ash, water and detergent into the tank;

[0023] S2, stirring;

[0024] Start the output motor to drive the output shaft, the plug rod, the turntable, the stirring shaft and the stirring blades to rotate and stir the aluminum ash;

[0025] S3, scraping;

[0026] Start the hydraulic push rod to drive the connecting plate, the shaft sleeve and the plug rod to move upward, so that the plug rod is separated from the second socket. At this time, the turntable is driven by the output motor to rotate relative to the stirring shaft, and the arc slideway limits the position of the slide rod to force the stirring blade to move outward to achieve extension;

[0027] Start the hydraulic push rod again to drive the connecting plate, sleeve and plug rod downward, so that the plug rod is inserted into the second socket again. At this time, the turntable and the stirring shaft rotate synchronously, and the aluminum ash on the inner wall of the tank body is scraped into the concave corner by the rotation of the stirring blade and discharged from the discharge port.

[0028] The beneficial effects of the present invention are as follows:

[0029] (1) In the present application, by enabling the stirring blades to move radially relative to the stirring shaft, the stirring of the aluminum ash is ensured under normal conditions, and the aluminum ash on the inner wall of the tank body can be scraped off in the extended state, which is beneficial to the discharge of the aluminum ash.

[0030] (2) In the present application, the stirring blade is twisted circumferentially both axially and radially, and the axial twist and the radial twist form a concave angle on the stirring blade, and when the stirring blade rotates, the aluminum ash can be automatically collected into the concave angle.

[0031] (3) In the present application, the relationship between the turntable and the stirring shaft is changed between the first state and the second state by controlling the lifting and lowering of the insertion rod, which can not only ensure the synchronous rotation of the turntable and the stirring shaft in the stirring state, but also allow the turntable and the stirring shaft to rotate relative to each other to achieve the purpose of extension. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The overall structural schematic diagram of the secondary aluminum ash processing device is shown;

[0033] Figure 2 A schematic diagram of the internal structure of the tank is shown;

[0034] Figure 3 shows a schematic structural diagram of a driving unit;

[0035] Figure 4 A schematic diagram of the structure of the plunger is shown;

[0036] Figure 5 A schematic diagram of the structure of the stirring unit is shown;

[0037] Figure 6 A diagram showing the combination of the driving part and the stirring part is shown.

[0038] Description of the drawings: 100, tank body; 110, feed inlet; 120, exhaust port; 130, drain outlet; 140, discharge port; 200, drive unit; 210, output motor; 220, output shaft; 221, socket one; 230, plug rod; 231, rib; 240, turntable; 241, socket; 242, arc slide; 250, bushing; 260, connecting plate; 270, hydraulic push rod; 300, stirring unit; 310, stirring shaft; 311, guide rod; 312, socket two; 320, stirring blade; 321, guide groove; 322, slide rod. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0040] The present application aims to solve the technical problem in the prior art that the aluminum ash after washing adheres to the inner wall of the tank body, which is not conducive to discharge; and proposes a new stirring part that can scrape off the aluminum ash adhered to the inner wall of the tank body in the discharge state, so as to facilitate the discharge of the aluminum ash.

[0041] Figure 1 The overall structural schematic diagram of the secondary aluminum ash processing device is shown; Figure 2 A schematic diagram of the internal structure of the tank body 100 is shown; Figure 1 and Figure 2 The secondary aluminum ash processing device comprises a tank body 100, a driving part 200 installed at the middle of the top of the tank body 100, and a stirring part 300 rotatably arranged in the tank body 100, wherein the stirring part 300 is connected to the output end of the driving part 200; the driving part 200 is used to drive the stirring part 300 to rotate, so as to stir and mix the aluminum ash in the tank body 100, thereby achieving fluorine-fixing and ammonia-removing; a feed port 110 and an exhaust port 120 are arranged at intervals at the top of the tank body 100, and the tank body 100 A drain port 130 and a discharge port 140 are spaced apart at the bottom; in use, the feed port 110 is connected to the feed channel to feed aluminum ash, water and detergent into the tank body 100, and the exhaust port 120 is connected to the air intake channel to receive the ammonia generated in the tank body 100. The drain port 130 and the discharge port 140 are both connected to pipelines and installed with solenoid valves to control opening and closing, and a filter is installed in the drain port 130 to preferentially discharge part of the liquid to prepare for subsequent solid-liquid separation.

[0042] Figure 3 shows a schematic structural diagram of the driving unit 200; Figure 4 A schematic diagram of the structure of the insertion rod 230 is shown; Figure 3 and Figure 4The driving unit 200 includes an output motor 210 installed at the middle of the top of the tank body 100, the output end of the output motor 210 is connected to an output shaft 220, the other end of the output shaft 220 extends and is inserted into the tank body 100, the extended end of the output shaft 220 is provided with a socket 221, a plug rod 230 is inserted into the socket 221, the plug rod 230 has a plurality of radially extending ribs 231 on the outside, a rotating disk 240 is sleeved on the outer ring of the plug rod 230, a socket 241 corresponding to the plug rod 230 is provided in the rotating disk 240, the plug rod 230 is connected to a shaft sleeve 250, and the shaft sleeve 250 is rotatably connected to a connecting plate 260, the top of the tank body 100 A hydraulic push rod 270 is installed, and the output end of the hydraulic push rod 270 is inserted into the tank body 100 and connected to the connecting plate 260; when the hydraulic push rod 270 is started, it can drive the connecting plate 260, the sleeve 250 and the insertion rod 230 to rise and fall. Since the output shaft 220 and the turntable 240 are both slidably sleeved outside the insertion rod 230, when the insertion rod 230 is raised and lowered, the output motor 210 is started, and the output shaft 220, the insertion rod 230 and the turntable 240 can still rotate synchronously. In other words, the insertion rod 230 is connected between the turntable 240 and the output shaft 220 as a receiving part, which can ensure that the output shaft 220 and the turntable 240 rotate synchronously.

[0043] Figure 5 Schematic diagram of the structure of the stirring part 300 is shown; Figure 6 200 and the stirring part 300 are shown in a combined view; Figure 5 and Figure 6 In the embodiment, the stirring part 300 includes a stirring shaft 310 rotatably connected to the tank body 100, a socket 2 312 corresponding to the insertion rod 230 is provided on the top of the stirring shaft 310, a plurality of stirring blades 320 are evenly arranged around the outside of the stirring shaft 310, a sliding rod 322 is connected to the top of the stirring blade 320, and an arc-shaped slideway 242 corresponding to the sliding rod 322 is provided on the turntable 240; the correspondence here refers to the correspondence in quantity and the one-to-one correspondence in position, and the stirring shaft 310 is directly rotatably connected to the tank body 10 0 bottom wall, when the turntable 240 rotates, that is, when the turntable 240 and the stirring shaft 310 rotate relative to each other, the sliding rod 322 and the stirring blade 320 can be driven to extend outward and contact the inner wall of the tank body 100, so that in the extended state, the stirring shaft 310 can scrape off the aluminum ash on the inner wall of the tank body 100 when it rotates again; the stirring blade 320 twists from bottom to top along the rotation direction of the stirring shaft 310; that is, the shape of the stirring blade 320 is not Figure 6The straight line in the figure is not a straight line, but a twisted shape from bottom to top, wherein the rotation direction of the stirring shaft 310 refers to, for example, when the stirring shaft 310 rotates clockwise, the stirring blade 320 twists from bottom to top in the clockwise direction, so that when the stirring blade 320 rotates, the aluminum ash on the wall of the tank body 100 will slide down from top to bottom, and the stirring blade 320 can scrape the aluminum ash at a high place to the bottom for easy collection; the stirring blade 320 twists from outside to inside along the rotation direction of the stirring shaft 310; that is, with the rotation direction of the stirring shaft 310 as a reference, the stirring blade 320 decreases as it radially extends from inside to outside, so that the stirring blade 320 can guide the aluminum ash to the stirring blade 3 when rotating. 20; there is a concave angle on the stirring blade 320, and in the extended state, the discharge port 140 corresponds to the concave angle; because when the rotation direction of the stirring shaft 310 is taken as a reference, the bottom of the stirring blade 320 is a twisted valley on the vertical plane, and the outer side of the stirring blade 320 is a twisted valley on the horizontal plane, the two valleys will form a concave angle, and as the stirring blade 320 rotates, aluminum ash can be collected in the concave angle, and the discharge port 140 is just at the same radial length as the concave angle, and the aluminum ash collected in the concave angle can be discharged from the discharge port 140; the hydraulic push rod 270 drives the insertion rod 230 to rise and fall and change between the first state and the second state. In the first state, the insertion rod 230 penetrates the insertion rod 230. The first state is when the rod 230 is inserted into the second socket 312 and the rotating disk 240 and the stirring shaft 310 are forced to rotate synchronously. In the second state, the rod 230 is inserted into the second socket 312, allowing the rotating disk 240 and the stirring shaft 310 to rotate relative to each other. After the rod 230 passes through the second socket 241 and is inserted into the second socket 312, the rotating disk 240 and the stirring shaft 310 are relatively locked and cannot produce relative movement. At this time, the output shaft 220 can drive the rotating disk 240 and the stirring shaft 310 to rotate synchronously, so that the stirring blade 320 can be driven to rotate for stirring or scraping. In the second state, the rod 230 is only inserted into the second socket 312 and is separated from the second socket 312. In this way, the output shaft 220 can only drive the rotating disk 240 and the stirring shaft 310 to rotate synchronously. The rotating disk 240 rotates, and the rotating disk 240 and the stirring shaft 310 rotate relative to each other, which can drive the sliding rod 322 and the stirring blade 320 to extend outward to prepare for scraping; the rotating disk 240 and the stirring shaft 310 are rotatably connected; the rotating disk 240 and the stirring shaft 310 are rotatably connected, and the two are directly connected to prevent axial separation, and relative rotation is not restricted; a guide groove 321 is provided in the stirring blade 320, and a guide rod 311 extends radially outward of the stirring shaft 310, and the guide rod 311 is inserted into the guide groove 321; the cooperation of the guide rod 311 and the guide groove 321 is used to limit the extension trajectory of the stirring blade 320, and at the same time prevent the stirring blade 320 and the stirring shaft 310 from disintegrating.

[0044] The method of the secondary aluminum ash treatment device has the following specific steps:

[0045] S1, material preparation;

[0046] Put aluminum ash, water and detergent into the tank 100;

[0047] S2, stirring;

[0048] The output motor 210 is started to drive the output shaft 220, the insertion rod 230, the rotating disk 240, the stirring shaft 310 and the stirring blade 320 to rotate and stir the aluminum ash;

[0049] S3, scraping;

[0050] The hydraulic push rod 270 is started to drive the connecting plate 260, the sleeve 250 and the insertion rod 230 to move upward, so that the insertion rod 230 is separated from the second socket 312. At this time, the turntable 240 is driven by the output motor 210 to rotate relative to the stirring shaft 310, and the arc-shaped slideway 242 limits the position of the slide rod 322 to force the stirring blade 320 to move outward to extend;

[0051] The hydraulic push rod 270 is started again to drive the connecting plate 260, the sleeve 250 and the insertion rod 230 to move downward, so that the insertion rod 230 is inserted into the second socket 312 again. At this time, the turntable 240 and the stirring shaft 310 rotate synchronously, and the rotation of the stirring blade 320 is used to scrape the aluminum ash on the inner wall of the tank body 100 into the concave corner and discharge it from the discharge port 140.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A secondary aluminum ash processing device, comprising a tank body (100), a driving part (200) installed in the middle of the top end of the tank body (100), and a stirring part (300) rotatably arranged in the tank body (100), characterized in that: The stirring part (300) comprises a stirring shaft (310) rotatably connected to the tank body (100), a plurality of groups of stirring blades (320) are evenly arranged around the stirring shaft (310), and a sliding rod (322) is connected to the top of the stirring blade (320); The driving part (200) comprises a turntable (240) rotatably arranged above the stirring shaft (310), and an arc-shaped slideway (242) corresponding to the slide bar (322) is provided on the turntable (240); The rotating disk (240) is driven by an external force to rotate relative to the stirring shaft (310) and drive the stirring blades (320) to extend outward.

2. The secondary aluminum ash processing device according to claim 1 is characterized in that: The driving unit (200) comprises an output motor (210) installed at the middle of the top end of the tank body (100); the output end of the output motor (210) is connected to an output shaft (220); the other end of the output shaft (220) extends and is inserted into the tank body (100); a socket (221) is provided at the extended end of the output shaft (220); and a socket (241) is provided on the rotating disk (240); A second socket (312) is provided on the top of the stirring shaft (310); an insertion rod (230) is connected between the stirring shaft (310) and the output shaft (220); one end of the insertion rod (230) is inserted into the first socket (221), and the other end of the insertion rod (230) passes through the insertion hole (241) and is inserted into the second socket (312); The insertion rod (230) is driven to rise and fall by an external force and to change between a first state and a second state; In the first state, the insertion rod (230) passes through the insertion hole (241) and is inserted into the second insertion port (312), forcing the rotating disk (240) and the stirring shaft (310) to rotate synchronously; In the second state, the insertion rod (230) is inserted into the insertion hole (241), allowing the rotating disk (240) and the stirring shaft (310) to rotate relative to each other.

3. The secondary aluminum ash processing device according to claim 2 is characterized in that: The insertion rod (230) is externally connected to a shaft sleeve (250), and the shaft sleeve (250) is externally rotatably connected to a connecting plate (260). A hydraulic push rod (270) is installed at the top of the tank body (100), and the output end of the hydraulic push rod (270) is inserted into the tank body (100) and connected to the connecting plate (260).

4. The secondary aluminum ash processing device according to claim 3 is characterized in that: The insert rod (230) has a plurality of radially extending ribs (231) on the outside.

5. The secondary aluminum ash processing device according to claim 4, characterized in that: The top of the tank body (100) is provided with a material inlet (110) and an exhaust port (120) at intervals, and the bottom of the tank body (100) is provided with a water discharge port (130) and a material discharge port (140) at intervals.

6. The secondary aluminum ash processing device according to claim 5, characterized in that: The stirring blade (320) is twisted from bottom to top along the rotation direction of the stirring shaft (310), and the stirring blade (320) is twisted from outside to inside along the rotation direction of the stirring shaft (310).

7. The secondary aluminum ash processing device according to claim 6, characterized in that: The stirring blade (320) has a concave angle, and in the extended state, the discharge port (140) corresponds to the concave angle.

8. The secondary aluminum ash processing device according to claim 7, characterized in that: The rotating disk (240) and the stirring shaft (310) are rotatably connected.

9. The secondary aluminum ash processing device according to claim 8, characterized in that: A guide groove (321) is provided in the stirring blade (320), a guide rod (311) is radially extended outwardly of the stirring shaft (310), and the guide rod (311) is inserted into the guide groove (321).

10. The method of the secondary aluminum ash processing device according to any one of claims 1 to 9, characterized in that: The specific steps are as follows: S1, material preparation; Putting aluminum ash, water and detergent into the tank (100); S2, stirring; Starting the output motor (210) to drive the output shaft (220), the insertion rod (230), the rotating disk (240), the stirring shaft (310) and the stirring blade (320) to rotate and stir the aluminum ash; S3, scraping; The hydraulic push rod (270) is started to drive the connecting plate (260), the shaft sleeve (250) and the insertion rod (230) to move upward, so that the insertion rod (230) is separated from the second socket (312). At this time, the turntable (240) is driven by the output motor (210) to rotate relative to the stirring shaft (310), and the position of the sliding rod (322) is limited by the arc slideway (242) to force the stirring blade (320) to move outward to achieve extension; The hydraulic push rod (270) is started again to drive the connecting plate (260), the shaft sleeve (250) and the insertion rod (230) to move downward, so that the insertion rod (230) is inserted into the second socket (312) again. At this time, the turntable (240) and the stirring shaft (310) rotate synchronously, and the aluminum ash on the inner wall of the tank body (100) is scraped into the concave corner by the rotation of the stirring blade (320) and discharged from the discharge port (140).

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