Unlock instant, AI-driven research and patent intelligence for your innovation.

Process for smelting crude tin from sodium stannate solution filter-pressing solid

A technology of sodium stannate and solid matter, which is applied in the field of waste battery recycling and treatment, can solve the problems of environmental pollution, waste of resources, and inability to directly apply alloy production, etc., and achieve the effects of high grade, low waste of resources, and good recycling effect

Active Publication Date: 2021-12-03
ANHUI NARADA RENEWABLE RESOURCE TECH CO LTD
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the above-mentioned technical problems, the object of the present invention is to provide a kind of technique of smelting thick tin from the press filtration solid of sodium stannate solution: by adding the solid of sodium stannate solution press filtration, quartz sand and coal powder to thick tin After melting in the extraction equipment, the impurity generates scum and floats on the surface of the molten metal, and then the molten metal is discharged from below, and then cooled to effectively separate the molten metal from the scum, which solves the existing problem The sodium stannate industrial product recovered by the process cannot be directly used in alloy production. If it is not recycled, it will cause a waste of resources and pollute the environment.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Process for smelting crude tin from sodium stannate solution filter-pressing solid
  • Process for smelting crude tin from sodium stannate solution filter-pressing solid
  • Process for smelting crude tin from sodium stannate solution filter-pressing solid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] see Figure 1-4 As shown, the present embodiment is a process for smelting crude tin from sodium stannate solution press-filtered solids, comprising the following steps:

[0032] Step 1: Add the sodium stannate solution press filter solid, quartz sand and coal powder into the hopper 103 of the crude tin extraction equipment according to the mass ratio of 100:1-2:10, start the driving motor 104, and the driving motor 104 runs to drive the conveying The screw rod 118 rotates to start the heating net 122, and the heating net 122 releases heat, and the rotating conveying screw rod 118 transports the sodium stannate solution press-filtered solid, quartz sand and coal powder mixture while heating, and the water vapor flows from the feeding hopper 103 discharge;

[0033] Step 2: Start the heating block 115, and the heating block 115 will heat the smelting tank 101 to 1000-1400 ° C, and the sodium stannate solution will press filter the solid, quartz sand and coal powder mixtu...

Embodiment 2

[0039] see Figure 1-4 As shown, the present embodiment is a crude tin extraction equipment, including a smelting tank 101, a feeding cylinder 102, a cooling box 105, a lifting plate 114, a filter screen 117, a conveying screw 118 and a heat recovery pipe 119, and the smelting tank 101 The top of the feed cylinder 102 is installed, and the bottom of one end of the feed cylinder 102 is connected to the inner cavity of the smelting tank 101. The inner cavity of the smelting tank 101 is provided with a lifting plate 114, and the inner cavity of the feeding cylinder 102 is installed with a A conveying screw 118, a spring-shaped heat recovery pipe 119 is installed in the inner wall of the feeding cylinder 102, a cooling box 105 is installed on one side of the smelting tank 101, an intake pump 109 is installed on the other side of the smelting tank 101, and the cooling box 105 A filter screen 117 is installed at the junction with the smelting tank 101, an air inlet 116 is arranged a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a process for smelting crude tin from a sodium stannate solution filter-pressing solid, and relates to the field of waste storage battery recycling treatment. The process for smelting the crude tin from the sodium stannate solution filter-pressing solid comprises the steps that the sodium stannate solution filter-pressing solid, quartz sand and pulverized coal are added to crude tin extraction equipment to be melted and then react; impurities generate scum which floats on the liquid level of molten metal; and then the molten metal is drained from the lower part and is cooled, so that the molten metal is effectively separated from the scum; and therefore, the impurities can be fully removed, the prepared crude tin is high in grade, the separation effect is good, the recovery effect is good, the resource waste is reduced, and the environmental pollution is avoided. According to the crude tin extraction equipment, heat is fully recycled, energy loss is reduced, the equipment is low in energy consumption in the crude tin smelting process, and the prepared crude tin is high in grade.

Description

technical field [0001] The invention relates to the field of recovery and treatment of waste storage batteries, in particular to a process for smelting crude tin from solids press-filtered in sodium stannate solution. Background technique [0002] Despite the continuous development of various new battery technologies today, the lead-acid battery with a history of more than 150 years is still in the secondary market due to its excellent cost performance, stable electrochemical performance, mature production technology and high recycling of waste products. Occupying the first place in the secondary battery market, the continuous growth of annual output not only represents the importance of lead-acid batteries to human beings, but also means that a large amount of lead is consumed in lead-acid battery products every year; [0003] As a major consumer product in the world, lead-acid batteries have also become the most important lead renewable resources. More than 80% of the mai...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C22B25/06C22B5/10C22B7/00C22B9/02C22B9/05C22B25/02C22B25/08F27D13/00F27D17/00H01M10/54
CPCC22B25/06C22B25/02C22B25/08C22B7/001C22B9/05C22B9/023C22B5/10H01M10/54F27D17/004F27D13/002Y02P10/20Y02P10/25Y02W30/84
Inventor 赵尧育宋宣都陈虎龙
Owner ANHUI NARADA RENEWABLE RESOURCE TECH CO LTD