CN202380063U

CN202380063U - Equipment for refining high tellurium crude bismuth

Info

Publication number: CN202380063U
Application number: CN2011203674154U
Authority: CN
Inventors: 李继红; 刘清; 李锦华; 林国荣; 邹庆敏
Original assignee: Jiangxi Rare Earth and Rare Metals Tungsten Group Holding Co Ltd
Current assignee: Jiangxi Rare Earth and Rare Metals Tungsten Group Holding Co Ltd
Priority date: 2011-09-30
Filing date: 2011-09-30
Publication date: 2012-08-15
Anticipated expiration: 2021-09-30

Abstract

The utility model relates to equipment for refining high tellurium crude bismuth. A smelting pot is arranged behind an electric/fuel/coal heating device, and an air pipe connected with an air compressor is inserted into the smelting pot by forming a 60 DEG angle with the horizontal plane; and a manual control drain pan and a slag hopper are arranged on one edge of the smelting pot, and the manual control drain pan can enter the smelting pot or the slag hopper. The equipment utilizes extraction of by-products from primary metals including tungsten, molybdenum, lead, copper, iron, etc., and utilizes the crude bismuth with high tellurium as raw the raw material to refine the high tellurium crude bismuth to obtain bismuth with tellurium content not more than 0.05 percent; or the equipment utilizes the crude bismuth with high arsenic and high tellurium to refine the high arsenic and high tellurium crude bismuth to obtain the bismuth with arsenic content not more than 0.05 percent and tellurium content not more than 0.05 percent.

Description

The equipment of the thick bismuth of the high tellurium of a kind of refining

Technical field

The utility model relates to a kind of metal melting equipment, the equipment of the thick bismuth of the high tellurium of particularly a kind of refining.

Background technology

Bismuth is seldom seen independent primary natural bismuth mineral in the earth's crust, mostly with metalliferous mineral symbiosis such as tungsten, molybdenum, lead, copper, iron.So generally all reclaim bismuth in the by product in other main metal smelting process, in these by products, except that bismuth-containing, also contain materials such as higher tellurium, antimony, arsenic, be difficult to separating treatment with the water law smelting.

Summary of the invention

It is raw material with the thick bismuth that contains high tellurium that the purpose of the utility model provides a kind of, the equipment of the thick bismuth of the high tellurium of refining; This equipment is applicable to that also with the thick bismuth that contains the high antimony of high arsenic be raw material, the thick bismuth of the high antimony of the high arsenic of refining.Said " thick bismuth " is meant that the impurity content in the raw material bismuth is higher than the corresponding index of bismuth standard GB/T 915-1995 trade mark Bi99.99.

The technical scheme of the utility model is: the equipment of the thick bismuth of the high tellurium of a kind of refining, and to smelt pot and be placed on the heating unit, the pneumatic tube that links to each other with air inserts in the smelting pot to become 60 ° oblique angle with horizontal plane; Smelt leakage wooden dipper and slag bucket that the pot side is provided with hand control, the leakage wooden dipper of hand control can get into smelts pot or slag bucket.

Said smelting pot comprises iron pan or cast steel pot.

Said heating unit comprises electrically heated, fuel Heating or coal heating unit.

The beneficial effect of the utility model is: contain materials such as bismuth and tellurium or antimony, arsenic in the by product in the main metal smelting process such as tungsten, molybdenum, lead, copper, iron, be difficult to separate, reclaim with the water law smelting; This equipment can be raw material with the thick bismuth that contains high tellurium, the thick bismuth of the high tellurium of refining, and acquisition contains the bismuth of tellurium≤0.05%.This equipment is applicable to that also with the thick bismuth that contains the high antimony of high arsenic be raw material, and the thick bismuth of the high antimony of the high arsenic of refining obtains to contain arsenic≤0.05%, contain antimony≤0.05% bismuth.

Term " alkaloid substance " is meant sheet alkali or washes the shoddye in the chlorine process.

Term " is washed the shoddye in the chlorine process " and is meant in bismuth refining procedure, drives away with sheet alkali to remain in the shoddye that the chlorine in the molten bismuth produces in the chlorination process.

Term " fusing slag " floats over the not fusant on the bismuth liquid level after being meant that thick bismuth is through fusing.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Fig. 1 is the equipment synoptic diagram of the thick bismuth of refining.

Among the figure: 1-leaks wooden dipper; The 2-air; The 3-pneumatic tube; 4-iron pan/cast steel pot; The thick bismuth of the high tellurium of 5-raw material; The 6-heating unit; The 7-slag bucket

Embodiment

Embodiment 1 is as shown in Figure 1: the equipment of the thick bismuth of the high tellurium of a kind of refining, and to smelt pot 4 and be placed on the heating unit 6, the pneumatic tube 3 that will link to each other with air 2 inserts in the smelting pot 4 to become 60 ° oblique angle with horizontal plane; Smelt leakage wooden dipper 1 and slag bucket 7 that pot 4 sides are provided with hand control, the leakage wooden dipper 1 of hand control can get into smelts pot 4 or slag bucket 7.

Said smelting pot 4 comprises iron pan or cast steel pot.

Said heating unit 6 comprises electrically heated, fuel Heating or coal heating unit.

The equipment that utilizes the thick bismuth of refining is the step of the thick bismuth of the high tellurium of raw material refining with the thick bismuth of high tellurium:

[1] after smelting pot 4 was placed in heating unit 6, the pneumatic tube 3 that will link to each other with air 2 inserted in the smelting pot 4 to become 60 ° oblique angle with horizontal plane, and pneumatic tube 3 exits are 2/3 of whole liquid bismuth height apart from the degree of depth of liquid bismuth face; Smelt pot 4 sides and be provided with manually operated leakage wooden dipper 1 and slag bucket 7, manually operated leakage wooden dipper 1 can get into smelts pot 4 or slag bucket 7;

[2] the thick bismuth of the high tellurium of raw material is dropped in the said smelting pot 4 the heat temperature raising fusing;

[3] in the process of heat temperature raising fusing, the manually operated leakage wooden dipper 1 liquid bismuth that rolls from top to bottom along a pot limit stirs, and is warmed up to 300 ℃～400 ℃, pulls the fusing slag that floats on the liquid level out and has cleared up the pot edge and the fusing slag of periphery, pours slag bucket into;

[4] continuation is heated and to the stirring of liquid bismuth input pressurized air, is warming up to 600 ℃～700 ℃ and also is incubated, and the white cigarette that on the fusion liquid level, occurs is thin, clears up on the liquid level and the fusing slag on pot limit, pours slag bucket 7 into;

When [5] cooling the temperature to 550 ℃～450 ℃, be divided into 2～5 batches of alkaloid substances of 2～6% that add bismuth liquid weight; The alkaloid substance that its mid-early stage adds is a flaky sodium hydrate, and the alkaloid substance that the later stage adds is the shoddye in the chlorine process of washing after oven dry;

[6] treat alkaloid substance fusing after, input pressurized air stirs, and pulls the tellurium slag on the liquid level out, pours slag bucket 7 into;

When [7] the refining later stage, shoddye appearred in the bismuth liquid level, add the wood chip of 3～4Kg/ pot, drag for the wood chip of wrapping up in volume tellurium slag on the most liquid level, pour slag bucket 7 into, output contains the smart bismuth of tellurium≤0.05% in the smelting pot 4.

Claims

1. the equipment of the thick bismuth of the high tellurium of refining is characterized in that: after smelting pot (4) and being placed in heating unit (6), the pneumatic tube (3) that will link to each other with air (2) inserts with the oblique angle that becomes 60 ° with horizontal plane to be smelted in pot (4); Smelt leakage wooden dipper (1) and slag bucket (7) that pot (4) side is provided with hand control, the leakage wooden dipper (1) of hand control can get into smelts pot (4) or slag bucket (7).

2. according to the equipment of the thick bismuth of the claim 1 high tellurium of said a kind of refining, it is characterized in that: said smelting pot (4) comprises iron pan or cast steel pot.

3. according to the equipment of the thick bismuth of the claim 1 high tellurium of said a kind of refining, it is characterized in that: said heating unit (6) comprises electrically heated, fuel Heating or coal heating unit.