阅读说明：本技术 一种锅底放铅的熔铅精炼装置 (Lead melting refining device for putting lead at bottom of pot ) 是由 杨春明 于 2021-10-18 设计创作，主要内容包括：一种锅底放铅的熔铅精炼装置,属于有色金属冶炼机械设备领域。精炼装置包括：炉体、放铅阀、放铅管、精炼锅、搅拌机、加料口、出烟口和锅罩；精炼锅安装在炉体上,在精炼锅的底部通过放铅管连接有放铅阀；在精炼锅的上端开口处连接有锅罩,锅罩将精炼锅的开口封闭；在锅罩上有加料口和出烟口,在锅罩的上端连接有搅拌机。优点：1、投资少,使用方便。2、铅液流速稳定,流量可控。3、锅底放铅,可避免铅液表面的氧化物浮渣进入浇铸模具中,合金元素烧损少,元素分布均匀不偏析,保证了产品质量。4、锅罩与锅止口密封连接,生产过程在密闭状态下完成,产生的废气可以通过铅锅罩上的出烟口排出进入除尘设施净化,减少污染,改善了工作环境。(A molten lead refining device for putting lead at the bottom of a pot belongs to the field of non-ferrous metal smelting mechanical equipment. The refining device comprises: the device comprises a furnace body, a lead placing valve, a lead placing pipe, a refining pot, a stirrer, a charging hole, a smoke outlet and a pot cover; the bottom of the refining pot is connected with a lead placing valve through a lead placing pipe; the opening at the upper end of the refining pot is connected with a pot cover, and the pot cover seals the opening of the refining pot; the pot cover is provided with a feeding port and a smoke outlet, and the upper end of the pot cover is connected with a stirrer. The advantages are that: 1. low investment and convenient use. 2. The flow velocity of the lead liquid is stable, and the flow is controllable. 3. Lead is put at the bottom of the pot, so that oxide floating slag on the surface of the lead liquid can be prevented from entering a casting die, the burning loss of alloy elements is less, the elements are uniformly distributed and are not segregated, and the product quality is ensured. 4. The pot cover is connected with the pot spigot in a sealing way, the production process is completed in a sealing state, and the generated waste gas can be discharged through the smoke outlet on the lead pot cover to enter a dust removal facility for purification, so that the pollution is reduced, and the working environment is improved.)

1. A lead melting refining device for putting lead at the bottom of a pan is characterized in that: the refining device comprises: the device comprises a furnace body, a lead placing valve, a lead placing pipe, a refining pot, a stirrer, a charging hole, a smoke outlet and a pot cover;

the bottom of the refining pot is connected with a lead placing valve through a lead placing pipe; the opening at the upper end of the refining pot is connected with a pot cover, and the pot cover seals the opening of the refining pot; the pot cover is provided with a feeding port and a smoke outlet, and the upper end of the pot cover is connected with a stirrer.

2. The apparatus for refining molten lead by putting lead on the bottom of a pan according to claim 1, wherein: the lead releasing valve comprises: the valve comprises a valve body, a valve core hole, a valve core rod, a wrench, a liquid inlet, a liquid outlet, a valve cover and an ejector pin bolt;

the valve core is positioned in the central hole of the valve body, the upper end of the valve body is connected with a valve cover, the valve core is locked in the valve body through the valve cover, and the upper end of the valve body is provided with an external thread which is connected with an internal thread of the valve cover; the side wall of the valve body is provided with a hole which is through in the radial direction, the holes on the two sides of the side wall are extended outwards to form a conduction pipe, and the end of the conduction pipe is connected with a liquid inlet flange and a liquid outlet flange respectively; a positioning hole is formed in the bottom of the valve body, an ejector pin bolt is connected to the positioning hole and penetrates through the positioning hole to be supported at the bottom of the valve core; the upper end of the valve core penetrates out of the valve cover through the valve core rod, and a wrench is connected to the valve core rod; the side wall of the valve core is provided with a through hole, and the through hole of the valve core corresponds to the through hole of the valve body; pulling the wrench, and rotating the valve core in the valve body; the through hole rotated to the valve core is communicated with the through hole of the valve body, and the lead releasing valve is in an opening state, or the through hole rotated to the valve core is not communicated with the through hole of the valve body, and the lead releasing valve is in a closing state.

3. The apparatus for refining molten lead by putting lead on the bottom of a pan according to claim 1, wherein: the valve body center hole is an inner taper hole, the valve core is an outer taper valve core, the inner taper hole is matched with the taper of the outer taper valve core, and a taper sealing surface is arranged between the two taper surfaces.

4. The apparatus for refining molten lead by putting lead on the bottom of a pan according to claim 1, wherein: the charge door include: a charging door and a hinge; the charging door passes through the hinge mounting on the pot cover, and during reinforced, the charging door can be opened.

5. The apparatus for refining molten lead by putting lead on the bottom of a pan according to claim 1, wherein: the lead placing pipe upwards forms an included angle of 5-10 degrees with the bottom of the pan.

Technical Field

The invention belongs to the field of non-ferrous metal smelting mechanical equipment, and particularly relates to a molten lead refining device for putting lead at the bottom of a pot.

Background

The crude lead produced by reducing and smelting lead-containing materials such as lead ore or waste lead-acid storage batteries contains impurities such as antimony, tin, arsenic, iron, cadmium, copper, silver, bismuth and the like, and the purity can meet the requirements of users only after refining and impurity removal. The crude lead refining comprises fire refining and wet refining, the fire refining has high production efficiency, the lead turnover is fast, the equipment is simple, but the production process is long; the wet refining process is short, the lead recovery rate is high, but the turnover is slow, the occupied capital is large, and the occupied area of equipment is large; therefore, lead smelters at home and abroad are widely applied to fire refining, a lead melting refining pot is indispensable equipment in the production processes of fire refining impurity removal and alloy blending, and lead liquid is required to be put into a mould of an ingot casting machine to be cooled to obtain a finished lead ingot after the crude lead refining or the alloy blending is finished.

At present, the traditional method for transferring lead liquid from a lead pot to an ingot casting mold is to directly inject the lead liquid into the ingot casting mold through a pipeline by using a lead pump, and the defects that lead cannot be placed at a constant speed and the lead placing amount is accurately controlled exist; lead flow scouring during lead discharge causes easy oxidation of lead liquid, the slag rate is increased, and serious burning loss of easily oxidized alloy elements in the alloy affects the product quality.

Disclosure of Invention

The invention aims to provide a lead melting refining device for putting lead at the bottom of a pot, which solves the problems that the lead cannot be put at a constant speed and the burning loss of alloy elements is high when the lead is put in the conventional lead pot.

The purpose of the invention is realized as follows: the refining device comprises: the device comprises a furnace body, a lead placing valve, a lead placing pipe, a refining pot, a stirrer, a charging hole, a smoke outlet and a pot cover;

the bottom of the refining pot is connected with a lead placing valve through a lead placing pipe; the opening at the upper end of the refining pot is connected with a pot cover, and the pot cover seals the opening of the refining pot; the pot cover is provided with a feeding port and a smoke outlet, and the upper end of the pot cover is connected with a stirrer.

The lead releasing valve comprises: the valve comprises a valve body, a valve core hole, a valve core rod, a wrench, a liquid inlet, a liquid outlet, a valve cover and an ejector pin bolt;

the valve core is positioned in the central hole of the valve body, the upper end of the valve body is connected with a valve cover, the valve core is locked in the valve body through the valve cover, and the upper end of the valve body is provided with an external thread which is connected with an internal thread of the valve cover; the side wall of the valve body is provided with a hole which is through in the radial direction, the holes on the two sides of the side wall are extended outwards to form a conduction pipe, and the end of the conduction pipe is connected with a liquid inlet flange and a liquid outlet flange respectively; a positioning hole is formed in the bottom of the valve body, an ejector pin bolt is connected to the positioning hole and penetrates through the positioning hole to be supported at the bottom of the valve core; the upper end of the valve core penetrates out of the valve cover through the valve core rod, and a wrench is connected to the valve core rod; the side wall of the valve core is provided with a through hole, and the through hole of the valve core corresponds to the through hole of the valve body; pulling the wrench, and rotating the valve core in the valve body; the through hole rotated to the valve core is communicated with the through hole of the valve body, and the lead releasing valve is in an opening state, or the through hole rotated to the valve core is not communicated with the through hole of the valve body, and the lead releasing valve is in a closing state.

The valve body center hole is an inner taper hole, the valve core is an outer taper valve core, the inner taper hole is matched with the taper of the outer taper valve core, and a taper sealing surface is arranged between the two taper surfaces.

The charge door include: a charging door and a hinge; the charging door passes through the hinge mounting on the pot cover, and during reinforced, the charging door can be opened.

The lead placing pipe upwards forms an included angle of 5-10 degrees with the bottom of the pan.

The method has the beneficial effects that by adopting the technical scheme, the crude lead is filled into a refining pot from a charging opening to be heated and melted, oxidation refining, alkaline refining and copper removal treatment are carried out according to the production process requirements, impurities such as antimony, tin, arsenic, iron, cadmium, copper, silver, bismuth and the like in the crude lead are removed, or alloy elements such as calcium, aluminum, tin, selenium, rare earth and the like required by customers are added; and (4) carrying out assay analysis on the lead liquid meeting the product standard, and then carrying out ingot casting. Due to the adoption of the technical scheme of putting lead at the bottom of the pot, qualified lead liquid does not need to be pumped into a casting mould by a lead pump. The lead placing pipe is positioned at the bottom of the lead melting pot, forms a small included angle with the bottom of the pot upwards and is positioned in the hearth, so that the temperature of the lead placing pipe is always kept above the melting point of lead, and lead liquid in the pipe cannot be blocked due to solidification during lead placing; before lead is put, a wrench is used for opening a lead putting valve to adjust the proper flow and flow rate, and the qualified lead liquid is put into a casting mold, so that the phenomena that the lead liquid is easy to oxidize, the slag rate is improved and alloy elements which are easy to oxidize in the alloy are seriously burnt and damaged due to the fact that lead pump lead generates lead flow and the lead is washed can be avoided.

The advantages are that:

1. low investment and convenient use.

2. The flow velocity of the lead liquid is stable, and the flow is controllable.

3. Lead is put at the bottom of the pot, so that oxide floating slag on the surface of the lead liquid can be prevented from entering a casting die, the burning loss of alloy elements is less, the elements are uniformly distributed and are not segregated, and the product quality is ensured.

4. The pot cover is connected with the pot spigot in a sealing mode, the production process is completed in a closed state, and generated waste gas can be discharged through the smoke outlet on the lead pot cover to enter a dust removal facility for purification, so that the waste gas is prevented from dispersing into a workshop, the pollution is reduced, and the working environment is improved.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic structural view showing a combined state of a furnace body, a refining kettle and a lead releasing valve according to the present invention.

Fig. 3 is a schematic structural diagram of the lead discharging valve of the invention.

Fig. 4 is a schematic view of the valve core structure of the present invention.

In the figure, 1, a furnace body; 2. a lead releasing valve; 3. putting a lead pipe; 4. a refining pot; 5. a blender; 6. a feed inlet; 7. a smoke outlet; 8. a pot cover.

2-1, a valve body; 2-2, a valve core; 2-3, valve core holes; 2-4, valve core rod; 2-5, a wrench; 2-6, a liquid inlet; 2-7, a liquid outlet; 2-8, valve cover; 2-9 and a thimble bolt.

6-1, a charging door; 6-2 and a hinge.

Detailed Description

Example 1: the refining device comprises: the device comprises a furnace body 1, a lead placing valve 2, a lead placing pipe 3, a refining pot 4, a stirrer 5, a feeding port 6, a smoke outlet 7 and a pot cover 8;

the refining pot 4 is arranged on the furnace body 1, and the bottom of the refining pot 4 is connected with a lead discharging valve 2 through a lead discharging pipe 3; a pot cover 8 is connected to the opening at the upper end of the refining pot 4, and the pot cover 8 seals the opening of the refining pot 2; the pot cover 8 is provided with a feed inlet 6 and a smoke outlet 7, and the upper end of the pot cover 8 is connected with a stirrer 5.

The lead discharging valve 2 comprises: the valve comprises a valve body 2-1, a valve core 2-2, a valve core hole 2-3, a valve core rod 2-4, a wrench 2-5, a liquid inlet 2-6, a liquid outlet 2-7, a valve cover 2-8 and an ejector pin bolt 2-9;

the valve core 2-2 is positioned in a central hole of the valve body 2-1, the upper end of the valve body 2-1 is connected with a valve cover 2-8, the valve core 2-2 is locked in the valve body 2-1 through the valve cover 2-8, and the upper end of the valve body 2-1 is provided with an external thread which is connected with an internal thread of the valve cover 2-8; the side wall of the valve body 2-1 is provided with a radial through hole, the holes on the two sides of the side wall are outwards extended with a conduction pipe, and the ends of the conduction pipe are respectively connected with a liquid inlet flange 2-6 and a liquid outlet flange 2-7; a positioning hole is formed in the bottom of the valve body 2-1, a thimble bolt 2-9 is connected to the positioning hole, and the thimble bolt 2-1 penetrates through the positioning hole and is supported at the bottom of the valve core; the upper end of the valve core penetrates through the valve cover 2-8 from the valve core rod, and the valve core rod is connected with a wrench 2-5; a through hole is arranged on the side wall of the valve core 2-2, and the through hole of the valve core 2-2 corresponds to the through hole of the valve body 2-1; wrenching the wrench 2-5, and rotating the valve core 2-2 in the valve body 2-1; the valve core 2-2 is rotated to the through hole of the valve body 2-1 to be communicated with the through hole of the lead releasing valve in an on state, or the valve core 2-2 is rotated to the through hole of the valve body 2-1 not to be communicated with the through hole of the valve body in an off state.

The central hole of the valve body 2-1 is an inner taper hole, the valve core 2-2 is an outer taper valve core, the inner taper hole is matched with the taper of the outer taper valve core, and a taper sealing surface is arranged between the two taper surfaces.

The feed inlet 6 comprises: a charging door 6-1 and a hinge 6-2; the feeding door 6-1 is arranged on the pot cover 8 through a hinge 6-2, and the feeding door 6-1 can be opened during feeding.

The lead placing pipe 3 forms an angle of 5-10 degrees with the bottom of the pan upwards.