Manganese slag air-drying and cake-pressing device

Abstract

The manganese slag air-drying and cake-pressing device comprises an air heater and a drying oven, an air inlet is formed in the upper end of the drying oven, the air heater communicates with the air inlet, a dispersing device, a dispersing device bag, a feeding hopper and a dispersing wheel device are arranged at the upper end of the drying oven, and the dispersing wheel device comprises a second spiral roller and a third spiral roller which are oppositely arranged and can rotate; a material passing gap is formed between the second spiral roller and the third spiral roller, the second spiral roller and the third spiral roller are opposite in spiral and are arranged in a staggered mode in the length direction, the air inlet is aligned to the lower portion of the material passing gap, a second conveying belt is further arranged in the drying oven, and one end of the second conveying belt is arranged below the material passing gap. According to the electrolytic manganese slag cake pressing device, the problem that the cake pressing process is affected by residual moisture of electrolytic manganese slag is solved.

Description

Technical Field

[0001] The utility model relates to the field of electrolytic manganese, in particular to a manganese slag air-drying cake pressing device. Background Art

[0002] Electrolytic manganese is the process of extracting manganese from manganese ore by electrolysis. A large amount of byproduct, namely manganese slag, is produced in this process. Since manganese slag contains a large amount of soluble salts and heavy metals, improper treatment will cause these pollutants to infiltrate the soil and groundwater system, causing environmental pollution. Therefore, the traditional practice is to press the manganese slag into a solid block and then carry out special treatment in the next step. However, since manganese slag carries a large amount of moisture when it is removed from the electrolysis process, even if it is left to stand through a filter, some moisture still remains on the surface of the slag inside, affecting the cake pressing process. Utility Model Content

[0003] The utility model provides a manganese slag air-drying cake pressing device, which solves the problem that residual moisture in electrolytic manganese slag affects the cake pressing process.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a manganese slag air-drying cake pressing device, including a hot air blower and an oven, an air inlet is provided at the upper end of the oven, the hot air blower is connected to the air inlet, a dispersion device is provided at the upper end of the oven, the dispersion device package, a feed hopper and a dispersion wheel device, the dispersion wheel device includes a second spiral roller and a third spiral roller that are arranged oppositely and rotatable, a feeding gap is provided between the second spiral roller and the third spiral roller, the second spiral roller and the third spiral roller have opposite spirals, the second spiral roller and the third spiral roller are staggered in the length direction, the air inlet is aligned with the bottom of the feeding gap, a second conveyor belt is also provided in the oven, one end of the second conveyor belt is arranged below the feeding gap, the other end of the second conveyor belt is provided with a cake pressing device, and an air outlet is provided at the lower end of the oven.

[0005] In the preferred scheme, the dispersing device includes a feed hopper, an extrusion cylinder is provided at the lower end of the feed hopper, a rotatable first spiral roller is provided in the extrusion cylinder, a conveying bucket is provided at one end of the extrusion cylinder, a dispersing wheel device is provided below the conveying bucket, the end of the extrusion cylinder close to the dispersing wheel device is higher, and a drainage pipe is provided at the end of the extrusion cylinder away from the dispersing wheel device.

[0006] In a preferred solution, the axes of the second spiral roller and the third spiral roller are arranged at an angle, the end of the material passing gap away from the conveying hopper is wider, and the wind direction of the air inlet is from the wider end of the material passing gap toward the narrower end of the material passing gap.

[0007] In a preferred solution, the lower end of the second spiral roller is connected to a swing plate, the lower end of the third spiral roller is connected to a translation plate, the angle between the swing plate and the translation plate is adjustable, and the distance between the translation plate and the swing plate is adjustable.

[0008] In the preferred solution, a slider is provided under the translation plate, a guide rail is provided on the mounting base plate, the slider is slidably connected to the guide rail, a latch rod is provided on one side of the translation plate, a plurality of latch holes are provided on the mounting base plate, and the latch rod is inserted into the latch hole.

[0009] In a preferred solution, a plurality of first conveyor belts are provided in the oven, and the first conveyor belts are arranged in a zigzag shape along the height direction, the uppermost first conveyor belt is arranged below the material passing gap, and the second conveyor belt is arranged below the lowermost first conveyor belt.

[0010] In a preferred solution, the cake pressing device includes a box body, a hydraulic cylinder is provided above the box body, a pressing plate is connected to the lower end of the hydraulic cylinder, and the pressing plate can be pressed down into the box body.

[0011] The utility model has the following beneficial effects: before pressing into cakes, the electrolytic manganese slag is subjected to hot air drying treatment to reduce the water content; the water content of the slag is squeezed out by using an extrusion cylinder to reduce the water content, and the slag is formed into blocks, and then the large and small blocks of slag are dispersed by using spiral rollers arranged in an involute manner, thereby increasing the contact area between the hot air and the slag and improving the air drying efficiency; a conveyor belt is used to transport the slag in a circuitous manner, thereby extending the time in the oven, and utilizing the residual heat of the oven to dry the slag spread on the belt surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0013] Figure 1 It is a schematic diagram of the utility model.

[0014] Figure 2 It is a schematic diagram of the dispersion device of the utility model.

[0015] Figure 3 It is a schematic diagram of a cake pressing device of the utility model.

[0016] Figure 4 It is a top view of the dispersion wheel device of the utility model.

[0017] Figure 5 It is a schematic diagram of the latch rod of the utility model.

[0018] In the figure: hot air blower 1; air inlet 101; oven 2; first conveyor belt 201; second conveyor belt 202; air outlet 203; dispersing device 3; feed hopper 301; extrusion cylinder 302; first spiral roller 303; conveying hopper 304; first drive motor 305; cake pressing device 4; box body 401; pressing plate 402; hydraulic cylinder 403; side plate 404; dispersing wheel device 5; second spiral roller 501; third spiral roller 502; feeding gap 503; second drive motor 504; translation plate 505; swing plate 506; latch rod 507; latch hole 508; nut 509; spring 510; drain pipe 6. DETAILED DESCRIPTION

[0019] like Figure 1-5 A manganese slag air-drying cake pressing device comprises a hot air blower 1 and an oven 2, an air inlet 101 is provided at the upper end of the oven 2, the hot air blower 1 is connected to the air inlet 101, a dispersion device 3 is provided at the upper end of the oven 2, the dispersion device 3 comprises a feed hopper 301 and a dispersion wheel device 5, the dispersion wheel device 5 comprises a second spiral roller 501 and a third spiral roller 502 which are arranged oppositely and rotatably, a feeding gap 503 is provided between the second spiral roller 501 and the third spiral roller 502, the second spiral roller 501 and the third spiral roller 502 have opposite spirals, the second spiral roller 501 and the third spiral roller 502 are staggered in the length direction, the air inlet 101 is aligned with the bottom of the feeding gap 503, a second conveyor belt 202 is further provided in the oven 2, one end of the second conveyor belt 202 is arranged below the feeding gap 503, the other end of the second conveyor belt 202 is provided with a cake pressing device 4, and an air outlet 203 is provided at the lower end of the oven 2.

[0020] Two second drive motors 504 are provided at the upper end of the oven 2, and a sprocket is provided at the shaft end of each second drive motor 504. Sprockets are provided at the ends of the second spiral roller 501 and the third spiral roller 502. Each second drive motor 504 drives the second spiral roller 501 and the third spiral roller 502 to rotate through a chain. The second spiral roller 501 and the third spiral roller 502 rotate in opposite directions, so that the manganese slag gathers toward the feeding gap 503.

[0021] The staggered arrangement of the second spiral roller 501 and the third spiral roller 502 in the length direction means that the spiral protrusion of the second spiral roller 501 is located at the spiral depression of the third spiral roller 502, so that the material passing gap 503 is wavy. The wavy shape reduces the gap in disguise, which reduces the passing efficiency of manganese slag. Since the second spiral roller 501 and the third spiral roller 502 have a certain length, the manganese slag that has not passed can be continuously transported to the far end, and finally leaks from the material passing gap 503, which has a dispersion effect.

[0022] In the preferred scheme, the dispersing device 3 includes a feed hopper 301, an extrusion cylinder 302 is provided at the lower end of the feed hopper 301, a rotatable first spiral roller 303 is provided in the extrusion cylinder 302, a conveying bucket 304 is provided at one end of the extrusion cylinder 302, and a dispersing wheel device 5 is provided below the conveying bucket 304. The end of the extrusion cylinder 302 close to the dispersing wheel device 5 is higher, and the end of the extrusion cylinder 302 away from the dispersing wheel device 5 is provided with a drain pipe 6.

[0023] A first drive motor 305 is provided at the upper end of the oven 2, and the shaft end of the first drive motor 305 is connected to the first spiral roller 303, driving the first spiral roller 303 to squeeze the manganese slag, and squeeze the strip, thin sheet, or filament-shaped manganese slag to curl and shrink it, reduce its volume, and make it more uniform and tend to be block-shaped, which is convenient for the subsequent dispersion of the dispersion wheel device 5. At the same time, the extrusion effect squeezes out part of the water in the slag and flows back to the tail end of the extrusion cylinder 302 and is discharged from the drain pipe 6.

[0024] In a preferred embodiment, the axes of the second spiral roller 501 and the third spiral roller 502 are arranged at an angle, the end of the feeding gap 503 away from the conveying hopper 304 is wider, and the wind direction of the air inlet 101 is from the wider end of the feeding gap 503 to the narrower end of the feeding gap 503.

[0025] The width of the material passing gap 503 below the conveying bucket 304 is small, and finer particles can be screened out. As the conveying progresses, the width of the material passing gap 503 gradually increases, and larger blocky slag particles can pass through. In other words, slag of different particle sizes falls into different positions in the oven 2, completing the slag dispersion.

[0026] When the dispersed manganese slag falls, the hot air from the air inlet 101 dries part of its moisture. Since the wind direction is from the wider end of the feeding gap 503 to the narrower end of the feeding gap 503 , smaller and lighter particles are blown farther and the particle distribution is more dispersed.

[0027] In a preferred embodiment, the lower end of the second spiral roller 501 is connected to a swing plate 506, and the lower end of the third spiral roller 502 is connected to a translation plate 505. The angle between the swing plate 506 and the translation plate 505 is adjustable, and the distance between the translation plate 505 and the swing plate 506 is adjustable.

[0028] A mounting base plate is provided at the upper end of the oven 2, one end of the swing plate 506 is hinged to the mounting base plate, and the other end of the swing plate 506 is provided with an arc waist groove and is connected to the mounting base plate by screws.

[0029] In the preferred embodiment, a slider is provided under the translation plate 505, a guide rail is provided on the mounting base plate, the slider is slidably connected to the guide rail, a latch rod 507 is provided on one side of the translation plate 505, a plurality of latch holes 508 are provided on the mounting base plate, and the latch rod 507 is inserted into the latch hole 508.

[0030] The latch rod 507 is sleeved with a threaded nut 509 and a spring 510 , with two ends of the spring 510 respectively abutting against the nut 509 and the translation plate 505 , so that the latch rod 507 is stably inserted into the latch hole 508 .

[0031] In a preferred embodiment, a plurality of first conveyor belts 201 are provided in the oven 2. The first conveyor belts 201 are arranged in a zigzag shape along the height direction. The top first conveyor belt 201 is arranged below the material passing gap 503, and the second conveyor belt 202 is arranged below the bottom first conveyor belt 201.

[0032] The zigzag-shaped first conveyor belt 201 prolongs the time the slag stays in the oven 2 , and the remaining moisture in the slag is gradually evaporated. The slag is then transferred and falls onto the second conveyor belt 202 to be transported to the cake pressing device 4 .

[0033] In a preferred solution, the cake pressing device 4 includes a box body 401 , a hydraulic cylinder 403 is provided above the box body 401 , a pressing plate 402 is connected to the lower end of the hydraulic cylinder 403 , and the pressing plate 402 can be pressed down into the box body 401 .

[0034] An openable side panel 404 is provided on one side of the box body 401. The second conveyor belt 202 guides the manganese slag into the box body 401 through a chute structure. The hydraulic cylinder 403 is installed on the base frame and has a guide rod. A hydraulic station is provided on one side. The hydraulic cylinder 403 drives the pressing plate 402 to press down, press the manganese slag into a cake shape, and open the side panel 404 to take out the cake.

[0035] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A manganese slag air-drying cake pressing device, characterized in that: The invention comprises a hot air blower (1) and an oven (2), wherein an air inlet (101) is provided at the upper end of the oven (2), the hot air blower (1) being in communication with the air inlet (101), and a dispersion device (3) is provided at the upper end of the oven (2), wherein the dispersion device (3) comprises a feed hopper (301) and a dispersion wheel device (5), wherein the dispersion wheel device (5) comprises a second spiral roller (501) and a third spiral roller (502) which are arranged opposite to each other and can rotate, and a material passing gap (501) is provided between the second spiral roller (501) and the third spiral roller (502). 3), the second spiral roller (501) and the third spiral roller (502) have opposite spirals, the second spiral roller (501) and the third spiral roller (502) are staggered in length direction, the air inlet (101) is aligned with the bottom of the feeding gap (503), a second conveyor belt (202) is further provided in the oven (2), one end of the second conveyor belt (202) is arranged below the feeding gap (503), a cake pressing device (4) is provided at the other end of the second conveyor belt (202), and an air outlet (203) is provided at the lower end of the oven (2).

2. The manganese slag air-drying cake pressing device according to claim 1 is characterized in that: The dispersion device (3) comprises a feed hopper (301), an extrusion cylinder (302) is provided at the lower end of the feed hopper (301), a first rotatable spiral roller (303) is provided in the extrusion cylinder (302), a conveying hopper (304) is provided at one end of the extrusion cylinder (302), a dispersion wheel device (5) is provided below the conveying hopper (304), an end of the extrusion cylinder (302) close to the dispersion wheel device (5) is higher, and a drainage pipe (6) is provided at the end of the extrusion cylinder (302) away from the dispersion wheel device (5).

3. The manganese slag air-drying cake pressing device according to claim 2, characterized in that: The axes of the second spiral roller (501) and the third spiral roller (502) are arranged at an angle, the end of the material passing gap (503) away from the conveying bucket (304) is wider, and the wind direction of the air inlet (101) is from the wider end of the material passing gap (503) toward the narrower end of the material passing gap (503).

4. The manganese slag air-drying cake pressing device according to claim 3 is characterized in that: The lower end of the second spiral roller (501) is connected to a swing plate (506), and the lower end of the third spiral roller (502) is connected to a translation plate (505). The angle between the swing plate (506) and the translation plate (505) is adjustable, and the distance between the translation plate (505) and the swing plate (506) is adjustable.

5. The manganese slag air-drying cake pressing device according to claim 4 is characterized in that: A slider is provided below the translation plate (505), a guide rail is provided on the mounting base plate, the slider is slidably connected to the guide rail, a latch rod (507) is provided on one side of the translation plate (505), a plurality of latch holes (508) are provided on the mounting base plate, and the latch rod (507) is inserted into the latch holes (508).

6. The manganese slag air-drying cake pressing device according to claim 1 is characterized in that: A plurality of first conveyor belts (201) are arranged in the oven (2), and the first conveyor belts (201) are arranged in a zigzag shape along the height direction. The top first conveyor belt (201) is arranged below the material passing gap (503), and the second conveyor belt (202) is arranged below the bottom first conveyor belt (201).

7. The manganese slag air-drying cake pressing device according to claim 1 is characterized in that: The cake pressing device (4) comprises a box body (401). A hydraulic cylinder (403) is provided above the box body (401). A pressing plate (402) is connected to the lower end of the hydraulic cylinder (403). The pressing plate (402) can be pressed down into the box body (401).

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