CN200939469Y - Oil and slag and aluminum powder removal device for cooling and lubricating emulsion of aluminum hot rolling mill - Google Patents

Abstract

The utility model relates to a device for removing oil, slag, and aluminum powder for cooling and lubricating emulsion of an aluminum hot continuous rolling mill, comprising an automatic oil skimmer arranged in an emulsion tank in a basement, a diaphragm pump connected with the automatic oil skimmer, and a diaphragm pump connected with the diaphragm pump. An oil-water separator, a waste liquid tank connected to the oil-water separator, and a sewage pump connected to the waste liquid tank are characterized in that the automatic oil skimmer includes a cuboid buoyancy tank, a liquid storage pipe connected to the bottom of the buoyancy tank and communicated with the diaphragm pump , the buoyant tank is hinged with a bracket and a connecting rod with one end hinged on the side wall of the emulsion tank, a counterweight is provided at the joint between the connecting rod and the buoyant tank, and a ring-shaped liquid suction port is arranged around the buoyant tank. The utility model has the following advantages: large amount of oil removal, fast speed, not only can clean up the sundries on the liquid surface of the oil tank, but also can remove excess aluminum powder in the emulsion, and has a certain self-cleaning ability.

Description

Oil and slag and aluminum powder removal device for cooling and lubricating emulsion of aluminum hot rolling mill

technical field

The utility model relates to a device for removing oil, slag and aluminum powder for cooling lubricating emulsion of an aluminum heat continuous rolling mill.

Background technique

Commonly used oil removal devices include belt type or rope type. These two devices have the following disadvantages: First, the amount of oil removal is small, and they can only remove oil, but cannot remove floating debris on the liquid surface, let alone remove excess oil in the emulsion. Second, the working position and processing medium are limited, and the waste oil that has floated out of the emulsion can only be treated on the liquid surface, and the loose oil in the emulsion cannot be removed directly; the third is that it is greatly affected by the fluctuation of the liquid surface. A still liquid surface is required for proper operation.

Contents of the invention

The purpose of this utility model is to overcome the limitations of the prior art and provide a device for removing oil, slag and aluminum powder suitable for the cooling and lubricating emulsion of the aluminum hot rolling mill. Excess aluminum powder in the emulsion.

The device for removing oil, slag, and aluminum powder of the cooling lubricating emulsion of the aluminum heat continuous rolling mill described in the utility model includes an automatic oil skimmer arranged in the emulsion tank in the basement, a diaphragm pump connected with the automatic oil skimmer, and a diaphragm pump connected with the automatic oil skimmer The oil-water separator, the waste liquid tank connected with the oil-water separator, and the sewage pump connected with the waste liquid tank are characterized in that: the automatic oil skimmer includes a cuboid buoyant tank, a storage tank connected to the bottom of the buoyant tank and communicated with the diaphragm pump The liquid pipe, the buoyant tank are hinged to the bracket and connecting rod with one end hinged on the side wall of the emulsion tank, a counterweight is arranged at the connection between the connecting rod and the buoyant tank, and a ring-shaped liquid suction port is arranged around the buoyant tank.

The structure of the four-bar mechanism of the automatic oil skimmer can make the floating tank automatically rise and fall vertically following the liquid level at any time, thereby realizing automatic oil skimming; Strong resistance to liquid flow impact, the suction port and the liquid level maintain a high degree of stability. The automatic oil skimmer collects waste oil, impurities, aluminum powder or oil and emulsion mixture into the liquid storage pipe of the automatic oil skimmer, and under the action of the diaphragm pump, the material in the liquid storage pipe is transported to the oil-water separator on the ground Oil removal, slag removal, and aluminum powder removal are carried out in the middle, and finally the emulsion that meets the requirements after separation is returned to the emulsion tank through the return pipe, and the waste oil, sundries, and aluminum powder are discharged by the sewage pump.

The special ring design of the suction port allows the automatic oil skimmer to suck up waste oil, aluminum powder and sundries in all directions around it. The height between the liquid suction port and the liquid surface can be adjusted within the design range of ±50mm through the counterweight, so the ratio of the emulsion and dirty oil sucked from the liquid suction port can be adjusted according to the demand.

The connecting part of the liquid storage pipe and the floating tank is curved, which acts as a liquid storage, which is conducive to the formation of negative pressure in the liquid storage pipe when the diaphragm pump reciprocates, and a large amount of oil, impurities and emulsion are continuously sucked from the liquid suction port. The other end of the forming pipe is connected with the inlet hard pipe of the diaphragm pump. The outlet of the diaphragm pump is connected to the oil-water separator through a hard pipe connection. The diaphragm pump transports the waste oil, impurities and aluminum powder sucked by the automatic oil skimmer to the oil-water separator for separation.

The device for removing oil, slag, and aluminum powder of the cooling lubricating emulsion of the aluminum hot continuous rolling mill is provided with a guide cylinder and a return pipe on the upper part of the oil-water separator; the guide cylinder communicates with the waste liquid tank through the waste liquid pipe, and the return pipe It is connected with the emulsion tank; there is a blowing pipe network at the bottom of the oil-water separator, the inlet of the blowing pipe network is connected with the compressed air pipeline, and the outlet of the blowing pipe network is a plurality of small blowing holes.

The guide tube on the oil-water separator guides the separated waste oil and aluminum powder out of the oil-water separator, and discharges it into the waste liquid tank of the sewage pump.

The blowing pipe network is installed at the bottom of the oil-water separator to improve the separation effect of the oil-water separator. The air blowing pipe network has two functions: one is to take away the waste oil separated from the emulsion and accumulated on the lipophilic plastic by using the air bubbles to rise up, and to strengthen the separation effect; the other is to prevent the oil-water separator from The rest of the emulsion is stinky and deteriorated due to anaerobic bacteria to prevent the emulsion system from being polluted.

Compared with the prior art, the utility model has the following advantages: large amount of oil removal, fast speed, not only can clean up the sundries on the liquid surface of the oil tank, but also can remove excess aluminum powder in the emulsion, and has a certain self-cleaning ability.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a structural schematic diagram of an automatic oil skimmer.

Figure 3 is a schematic view of the buoyancy tank and ring-shaped liquid suction port of the automatic oil skimmer.

Fig. 4 is a structural schematic diagram of the blowing pipe network installed at the bottom of the oil-water separator.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

Referring to Fig. 2 and Fig. 3, liquid storage pipe 7 is connected on the bottom that is provided with the buoyancy box 6 of the cuboid of annular liquid suction opening 11 all around, and one end of support 8 and connecting rod 9 is connected with the emulsion tank 18 sidewalls that are located in basement The support on the top is hinged, the other end of the bracket 8 and the connecting rod 9 is hinged with the buoyant tank, and the counterweight 10 is installed at the joint between the connecting rod and the buoyant tank, which constitutes the installation of the automatic oil skimmer 1;

As shown in Figure 1 and Figure 4, the inlet of the diaphragm pump 2 is connected to the liquid storage pipe 7 of the automatic oil skimmer, the outlet of the diaphragm pump 2 is connected to the oil-water separator 3, and the guide cylinder 12 on the upper part of the oil-water separator passes through the waste liquid pipe 17 It is connected with the waste liquid tank 4, and the sewage pump 5 is connected with the waste liquid tank. The inlet 14 of the air blowing pipe network 13 located at the bottom of the oil-water separator 3 is connected with the compressed air pipeline, and the compressed air passes through multiple blowing pipes on the air blowing pipe network. The outlet of the air hole 15 enters the oil-water separator, and the emulsion that meets the requirements after separation returns to the emulsion tank 18 through the return pipe 16 .

Claims (2)

1. The degreasing, slag and aluminum powder removal device for the cooling and lubricating emulsion of the aluminum hot rolling mill, including the automatic oil skimmer (1) in the emulsion tank in the basement, the diaphragm pump (2) connected with the automatic oil skimmer, and the The oil-water separator (3) connected with the diaphragm pump, the waste liquid tank (4) connected with the oil-water separator, and the sewage pump (5) connected with the waste liquid tank are characterized in that: the automatic oil skimmer (1) includes a cuboid The buoyant tank (6), the liquid storage pipe (7) connected to the bottom of the buoyant tank and communicated with the diaphragm pump, the buoyant tank is hinged with the bracket (8) and the connecting rod (9) with one end hinged on the side wall of the emulsion tank. A counterweight (10) is provided at the junction of the bar and the buoyant tank, and an annular liquid suction port (11) is provided around the buoyant tank. 2. The device for removing oil, slag and aluminum powder of cooling lubricating emulsion for aluminum hot rolling mill according to claim 1, characterized in that: a guide tube (12) and a return pipe are arranged on the upper part of the oil-water separator (3) (16), the guide tube is communicated with the waste liquid tank (4) by the waste liquid pipe (17), and the return pipe (16) is communicated with the emulsion tank (18); the guide tube is communicated with the waste liquid tank (4); The bottom of the oil-water separator (3) is provided with an air blowing pipe network (13), the inlet (14) of the air blowing pipe network is communicated with the compressed air pipeline, and the outlet of the air blowing pipe network is a plurality of small air blowing holes (15).

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