CN203065547U

CN203065547U - Brass smelting furnace

Info

Publication number: CN203065547U
Application number: CN2013200867262U
Authority: CN
Inventors: 史汉祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-02-26
Filing date: 2013-02-26
Publication date: 2013-07-17
Anticipated expiration: 2023-02-26

Abstract

The utility model relates to a brass smelting furnace. The brass smelting furnace comprises a closed furnace body and a feed pipe and a screw arranged on the closed furnace body, wherein the feed pipe and the main body part of the screw are located in the closed furnace body; a feed port is formed in the feed pipe outside the closed furnace body; the screw is located in the feed pipe; a hollow nitrogen channel for filling nitrogen is formed in the screw; a gas inlet of the hollow nitrogen channel is formed outside the closed furnace body; a gas outlet of the hollow nitrogen channel is formed in a non-stressed surface at the bottom of the screw; a zinc gas outlet is formed in the top of the closed furnace body; a copper liquid outlet is formed in the bottom of the closed furnace body; a pressure regulation observation port is formed in the side wall of the closed furnace body; and a closed slag discharge port is formed below the pressure regulation observation port. The brass smelting furnace provided by the utility model has the advantages of novel structure and low energy consumption and can efficiently extract pure copper and pure zinc from brass.

Description

Brass furnace

Technical field

The utility model relates to a kind of brass furnace.

Background technology

Brass is important metallic substance, is used widely.Can produce a large amount of brass scrap raw materials in the process of production and use brass ware, the price that producer handles brass scrap is 1/10th of its raw material purchase price only, and financial loss is very big.In order to control cost, just from brass, extract copper and zinc, sell separately or recycling.

The method of extracting copper and zinc at present mostly from brass mainly is two kinds, a kind ofly be disclosed as " CN1113520 " as Chinese patent, name be called " Wet-process metallurgy method that from copper zinc material, reclaims copper and zinc " described " adopt ammonia to leach copper zinc material; to adopt extraction process that copper zinc in the leach liquor is separated then; rich copper liquid send electrodeposition to produce electrolytic copper; raffinate gets zinc subcarbonate through ammonia still process, send calcine active zinc flower." deficiency that exists of this method is to obtain metallic copper and zinc oxide, and can not obtain fine copper and pure zinc simultaneously, zinc oxide is changed into pure zinc need be through complicated treating processes, is not very worthwhile on cost.The most frequently used method of extracting copper and zinc from brass is to extract by the smelting furnace melting, by high temperature brass is melted, and the copper that boiling point is high when low-boiling zinc becomes zinc fume has been realized the separation and Extraction of copper and zinc still for liquid; The deficiency that this method exists is that smelting furnace contains oxygen in its inner air when entrained air is melting in reinforced process, the oxygen that also contains trace in the oxidized so brass raw material of brass surfaces, especially Bu Fen smelting furnace is that its oxygen level of open type is bigger, oxygen in the smelting furnace can react with zinc fume and liquid copper, the cupric oxide in fact and the zinc oxide that finally obtain, and fine copper and cupric oxide, pure zinc and zinc oxide have very large gap in price, waste residue in the stove is difficult to fusion completely in addition, therefore also contains copper and the zinc of some in the waste residue of discharging.In sum, also from brass, can not extract the equipment of fine copper and pure zinc in the market.

Summary of the invention

In order to solve the above-mentioned problem that can't extract fine copper and pure zinc from brass, goal of the invention of the present utility model is to disclose a kind of novel structure, uses energy consumption low, can extract the brass furnace of fine copper and pure zinc from brass.

In order to realize above-mentioned purpose, the utility model has adopted following technical scheme:

Brass furnace, comprise airtight body of heater and on feed-pipe and screw rod, the main part of feed-pipe and screw rod is in the airtight body of heater, on the external feed-pipe of sealed furnace opening for feed is set, screw rod is in the feed-pipe, be provided for the hollow channel of nitrogen towards nitrogen in the screw rod, it is external that the inlet mouth of hollow channel of nitrogen is in sealed furnace, and the air outlet of hollow channel of nitrogen is on the non-stress face of screw rod bottom; The top of airtight body of heater arranges the outlet of zinc gas, and the bottom of airtight body of heater arranges the outlet of copper liquid, and the sealed furnace body sidewall is provided with the pressure regulation porthole, and the below of pressure regulation porthole arranges airtight slag-drip opening.

As preferably, also comprise by the pressure regulation porthole and insert the reinforced hollow stick of airtight body of heater internal pressure-regulating.Regulate air pressure in the smelting furnace by the reinforced hollow stick of pressure regulation, remain air pressure in the smelting furnace and be in barotropic state and prevent entering of air.Pressurizeing towards nitrogen by the reinforced hollow stick of pressure regulation has increased the smelting efficiency of smelting furnace, accelerated the dissolving of waste residue by pressurization, copper wherein, zinc and oxygen have been separated out again, the chemical reaction that has also completely cut off oxygen and copper, zinc towards nitrogen, the copper that obtains and the purity of zinc have been guaranteed, add coke powder inhaling of oxygen burning again, namely this operation has further improved the purification efficiency of copper and zinc, has also improved the purification output of copper and zinc.Be exactly chemical reaction for oxygen and copper, zinc towards nitrogen itself, and the malleation in the smelting furnace can prevent air admission.

As preferably, the air outlet of described hollow channel of nitrogen is a plurality of, and the pressure regulation porthole is a plurality of.

As preferably, described airtight slag-drip opening is the hydrocone type slag-drip opening, prevents entering of air.

Adopted the brass furnace of such scheme, adopted airtight body of heater that brass is carried out melting, not only completely cut off a large amount of air and reduced production energy consumption, and near the environment of effectively having controlled the brass furnace is not contaminated.Screw rod is in the feed-pipe, be provided for the hollow channel of nitrogen towards nitrogen in the screw rod, it is external that the inlet mouth of hollow channel of nitrogen is in sealed furnace, the air outlet of hollow channel of nitrogen is on the non-stress face of screw rod bottom, the effect of hollow channel of nitrogen is by being that screw rod is lowered the temperature towards nitrogen, prevent the overheated dilatational strain of screw rod, in case the overheated dilatational strain of screw rod just can't play the effect of stirring, especially screw rod is in the feed-pipe, the air outlet of hollow channel of nitrogen is on the non-stress face of screw rod bottom has well protected screw rod, in a single day raw material falls into the copper liquid in the smelting furnace, a large amount of hot gas comprises that ammonia will be toward rising, the effect that screw rod bottom ejection this moment nitrogen can well play cooling prevents that hot gas from upwards making the screw rod upper deformation, prevent from taking place in the feed-pipe situation of burning simultaneously, this also is that screw rod is arranged on reason in the feed-pipe, and screw rod all exposes in airtight body of heater with regard to easy deformation; Screw rod just is very easy to damage on the thrust surface of screw rod if the air outlet of hollow channel of nitrogen is in, and above-mentioned design has guaranteed the work-ing life of screw rod.The hollow channel of nitrogen has also completely cut off the chemical reaction of oxygen and copper, zinc towards nitrogen, has guaranteed the copper that obtains and the purity of zinc, can effectively control solution height in the smelting furnace and charging situation etc. by screw rod, operates very convenient.

In sum, the advantage of this brass furnace is novel structure, uses energy consumption low, has improved the big problem of environmental pollution that traditional extraction equipment and method exist, and can extract fine copper and pure zinc efficiently from brass.

Description of drawings

Fig. 1: the structural representation of the utility model embodiment.

Embodiment

Below in conjunction with Fig. 1 embodiment of the present utility model is made a detailed explanation.

Brass furnace as shown in Figure 1, comprise airtight body of heater 1 and on feed-pipe 2 and screw rod 3, the main part of feed-pipe 2 and screw rod 3 is in the airtight body of heater, on the feed-pipe 2 outside the airtight body of heater 1 opening for feed 21 is set, screw rod 3 is in the feed-pipe 2, be provided for the hollow channel of nitrogen 31 towards nitrogen in the screw rod 3, the inlet mouth of hollow channel of nitrogen 31 is in outside the airtight body of heater 1, and the air outlet 32 of hollow channel of nitrogen 31 is on the non-stress face of screw rod bottom.The top of airtight body of heater 1 arranges zinc gas outlet 13, and the bottom of airtight body of heater 1 arranges copper liquid outlet 12, and the sealed furnace body sidewall is provided with pressure regulation porthole 4, and the below of pressure regulation porthole 4 arranges airtight slag-drip opening 11.Brass furnace also comprises by the reinforced hollow stick 41 of the pressure regulation porthole airtight body of heater internal pressure-regulating of 4 insertions, the reinforced hollow stick 41 of pressure regulation is only being used towards nitrogen with when adding coke powder, the reinforced hollow stick 41 of time spent pressure regulation is not removed, and pressure regulation porthole 4 is airtight state.

The air outlet 32 of above-mentioned hollow channel of nitrogen 31 is a plurality of, and pressure regulation porthole 4 is a plurality of, and airtight slag-drip opening 11 is hydrocone type slag-drip openings, prevents entering of air.

The using method of brass furnace is as follows:

(1) raw material is added in the airtight body of heater 1 and carries out melting, undertaken towards the nitrogen operation by the outlet of the 31 pairs of feed-pipes 2 of hollow channel of nitrogen in the screw rod 3, during melting in the airtight body of heater 1 temperature remain between 950 ℃-1050 ℃; Raw material comprises brass, coke powder and quartz;

(2) by the situation in the airtight body of heater 1 of pressure regulation porthole 4 observations, add coke powder simultaneously with inflated with nitrogen in the reinforced hollow stick 41 past airtight bodies of heater 1 of pressure regulation when needing pressurization, the air pressure that remains in the airtight body of heater 1 is in barotropic state;

(3) zinc fume of zinc boiling postforming one-tenth is discharged by the outlet of the zinc gas on the smelting furnace 13, can obtain pure zinc powder after the cooling;

(4) be suspended in waste residues such as coke powder on the copper liquid and quartz and discharge from the airtight slag-drip opening 11 of smelting furnace, copper liquid is discharged from copper liquid outlet 12 and is obtained fine copper.

Claims

1. brass furnace, it is characterized in that comprising airtight body of heater and on feed-pipe and screw rod, the main part of feed-pipe and screw rod is in the airtight body of heater, on the external feed-pipe of sealed furnace opening for feed is set, screw rod is in the feed-pipe, be provided for the hollow channel of nitrogen towards nitrogen in the screw rod, it is external that the inlet mouth of hollow channel of nitrogen is in sealed furnace, and the air outlet of hollow channel of nitrogen is on the non-stress face of screw rod bottom; The top of airtight body of heater arranges the outlet of zinc gas, and the bottom of airtight body of heater arranges the outlet of copper liquid, and the sealed furnace body sidewall is provided with the pressure regulation porthole, and the below of pressure regulation porthole arranges airtight slag-drip opening.

2. brass furnace according to claim 1 is characterized in that also comprising by the pressure regulation porthole and inserts the reinforced hollow stick of airtight body of heater internal pressure-regulating.

3. brass furnace according to claim 1, the air outlet that it is characterized in that described hollow channel of nitrogen is a plurality of, the pressure regulation porthole is a plurality of.

4. brass furnace according to claim 1 is characterized in that described airtight slag-drip opening is the hydrocone type slag-drip opening.