A device for reducing the moisture content of phosphating residues

Abstract

The utility model relates to a device that reduces phosphating slag moisture content belongs to metallurgical equipment technical field. Including vibration filter pressing unit, vibration filter pressing unit includes filter water bucket, the water outlet is opened out to the symmetry of filter water bucket bottom, and the phosphating slag is hoisted in filter water bucket, and the vibration cover is equipped with vibration cover top of phosphating slag, and vibration device is arranged in the bottom center of vibration cover, opens vibration device, and the phosphating liquid that the phosphating slag contains is vibrated to filter pressing box body bottom in phosphating slag, and then flows out through the water outlet, still be equipped with drying unit, drying unit includes drying box body, and drying box body one end is waste gas import, and the other end is waste gas export, the two heat transfer plates are symmetrically set up in drying box body, and the phosphating slag after filter water through vibration filter pressing unit is placed on drying box body, and the phosphating slag is located between two heat transfer plates. The present application is convenient to operate, removes the phosphating liquid of phosphating slag residue, reduces phosphating slag moisture content, reduces phosphating slag environmental management risk.

Description

Technical Field

[0001] This utility model relates to a device for reducing the moisture content of phosphating slag, belonging to the field of metallurgical equipment technology. Background Technology

[0002] Even after filtration using a combination of hydraulic pressure and filter cloth in a filter press, the phosphating liquid within the phosphating slag cannot be completely filtered out. This necessitates the continuous addition of phosphating liquid during production. Furthermore, the residual phosphating liquid within the slag is classified as hazardous waste, posing environmental management risks during transportation and storage. Therefore, a device for reducing the moisture content of the phosphating slag needs to be designed. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a device for reducing the moisture content of phosphating slag, which is easy to operate, removes residual phosphating liquid from phosphating slag, reduces the moisture content of phosphating slag, and reduces the environmental management risks of phosphating slag.

[0004] The technical solution adopted by this utility model to solve the above problems is as follows: a device for reducing the moisture content of phosphating slag, including a vibrating filter press unit, the vibrating filter press unit including a water filter bucket, the bottom of the water filter bucket having symmetrically opened water outlets, the phosphating slag being suspended in the water filter bucket, the top of the phosphating slag being covered with a vibrating cover, and a vibrating device being set at the center of the bottom of the vibrating cover. When the vibrating device is turned on, it vibrates the phosphating slag, causing the phosphating liquid contained in the phosphating slag to vibrate to the bottom of the filter press box, and then flow out through the water outlet.

[0005] The top of the water filter bucket is open.

[0006] A drying unit is also provided, which includes a drying chamber. One end of the drying chamber is a waste gas inlet, and the other end is a waste gas outlet. Two heat transfer plates are symmetrically arranged inside the drying chamber. The phosphate slag after being filtered by the vibration filter press unit is placed on the drying chamber, and the phosphate slag is placed between the two heat transfer plates.

[0007] The drying chamber is also equipped with a support plate, which is located between two heat transfer plates.

[0008] The vibration device is a vibration motor.

[0009] Compared with existing technologies, the advantages of this utility model are as follows: A device for reducing the moisture content of phosphating slag, when the moisture content of the phosphating slag is less than 35%, firstly, a vibrating filter press unit is used to remove the phosphating liquid from the phosphating slag. The vibrating filter press unit can remove 7% of the phosphating liquid from the phosphating slag. After vibrating filter press, the phosphating slag still needs to pass through a drying unit to dry the remaining phosphating liquid. When the moisture content of the phosphating slag is less than 20%, the phosphating slag can be directly hoisted onto the drying chamber to directly dry the phosphating liquid within the phosphating slag. This application is convenient to operate, removes residual phosphating liquid from the phosphating slag, reduces the moisture content of the phosphating slag, reduces processing time and costs, and lowers the environmental management risks associated with phosphating slag. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of a vibrating filter press unit in an apparatus for reducing the moisture content of phosphate slag according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the vibrating cover and the vibrating motor; Figure 3 This is a schematic diagram of a drying unit in an apparatus for reducing the moisture content of phosphate slag according to an embodiment of the present invention. In the diagram: 1. Water filter bucket; 2. Water outlet; 3. Drying chamber; 4. Exhaust gas inlet; 5. Exhaust gas outlet; 6. First heat transfer plate; 7. Support plate; 8. Second heat transfer plate; 9. Vibration cover; 10. Vibration motor. Detailed Implementation

[0011] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0012] like Figure 1 , 2 As shown in Figure 3, an apparatus for reducing the moisture content of phosphate slag in this embodiment includes a vibratory filter press unit. The vibratory filter press unit includes a filter bucket 1 with an open top and two symmetrical outlets 2 at the bottom. The entire bag of phosphate slag is hoisted into the filter bucket 1 by a crane. A vibratory cover 9 is placed on top of the phosphate slag, and a vibratory motor 10 is installed at the center of the bottom of the vibratory cover 9. When the vibratory motor 10 is turned on, it vibrates the phosphate slag, causing the phosphate liquid contained in the phosphate slag to be vibrated to the bottom of the filter bucket 1 and then flow out through the two outlets 2. The water discharge time is set according to the water discharge situation of the phosphate slag. When no phosphate liquid seeps out of the outlets, the vibratory motor 10 is turned off, the vibratory cover 9 is removed, and the phosphate slag in the filter bucket is hoisted out by a crane for subsequent drying treatment.

[0013] A drying unit is also provided, comprising a drying chamber 3 with an exhaust gas inlet 4 at one end and an exhaust gas outlet 5 at the other. Two heat transfer plates are symmetrically arranged inside the drying chamber 3: a first heat transfer plate 6 and a second heat transfer plate 8. The phosphate slag, after being vibrated and filtered, is placed on the top surface of the drying chamber 3, positioned between the two heat transfer plates. Exhaust gas from the pickling line is piped into the drying chamber 3 through the exhaust gas inlet 4. The waste heat from the exhaust gas heats the heat transfer plates, which in turn heat the corresponding parts of the drying chamber, transferring the heat to the interior of the phosphate slag. Through continuous heating, the moisture in the phosphate slag is evaporated, reducing its moisture content. The exhaust gas after heat exchange is discharged through the exhaust gas outlet of the drying chamber. This process removes residual phosphate liquid from the phosphate slag and recovers waste heat from the pickling line exhaust gas, reducing drying costs.

[0014] The drying chamber is also equipped with a support plate 7, which is located between two heat transfer plates and strengthens the drying chamber where the phosphate slag is placed.

[0015] The external dimensions of the aforementioned water filter bucket are 1500mm×1500mm×1500mm, and the thickness is 20mm. The external dimensions of the vibrating cover are 1500mm×1500mm×50mm.

[0016] This application features a separate vibratory filter press unit and a drying unit. The vibratory filter press unit or the drying unit is used appropriately based on the moisture content of the phosphating slag. When the moisture content of the phosphating slag is less than 35%, the vibratory filter press unit is first used to remove the phosphating liquid. This unit can remove 7% of the phosphating liquid. After vibratory filtration, the phosphating slag still needs to pass through a drying unit to dry the remaining phosphating liquid. When the moisture content of the phosphating slag is less than 20%, the phosphating slag can be directly hoisted onto the drying chamber for direct drying of the phosphating liquid. This application is easy to operate, removes residual phosphating liquid from the phosphating slag, reduces the moisture content of the phosphating slag, reduces processing time and costs, and lowers the environmental management risks associated with phosphating slag.

[0017] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. A device for reducing the moisture content of phosphating sludge, characterized in that: The filter includes a vibratory filter press unit, which includes a water filter tank with symmetrical outlets at the bottom. Phosphate residue is suspended inside the water filter tank and covered with a vibratory cover. A vibratory device is installed at the center of the bottom of the vibratory cover. When the vibratory device is turned on, it vibrates the phosphate residue, causing the phosphate liquid contained in the phosphate residue to be vibrated to the bottom of the filter press box and then flow out through the outlet.

2. The device for reducing the moisture content of phosphate slag according to claim 1, characterized in that: The top of the water filter bucket is open.

3. The device for reducing the moisture content of phosphate slag according to claim 1, characterized in that: A drying unit is also provided, which includes a drying chamber. One end of the drying chamber is a waste gas inlet, and the other end is a waste gas outlet. Two heat transfer plates are symmetrically arranged inside the drying chamber. The phosphate slag after being filtered by the vibration filter press unit is placed on the drying chamber, and the phosphate slag is placed between the two heat transfer plates.

4. The apparatus for reducing the moisture content of phosphate slag according to claim 3, characterized in that: The drying chamber is also equipped with a support plate, which is located between two heat transfer plates.

5. The apparatus for reducing the moisture content of phosphate slag according to claim 1, characterized in that: The vibration device is a vibration motor.

Images