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Method and device for recovering waste diamond cutter heads

The technology of a diamond cutter head and a recycling method is applied in the field of waste diamond cutter head recycling, which can solve the problems of non-recovery of metal elements and secondary pollution, and achieve the effect of realizing environmental protection benefits and economic benefits.

Pending Publication Date: 2018-01-19
郑日升
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The above methods all have the problem of secondary pollution if one metal element is not fully recovered, and fail to solve all the problems of environmental protection and resource recycling

Method used

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  • Method and device for recovering waste diamond cutter heads

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Effect test

Embodiment 1

[0019] Present embodiment is the recycling of diamond granite saw blade cutter head, and the recovery device that adopts is as figure 1 As shown, it includes an electrolysis tank for electrodissolving the metal in the waste diamond cutter head, a reaction kettle for carrying out the precipitation reaction of the electrolysis solution containing metal ions in the electrolysis tank, and the reaction kettle for the precipitation reaction. A vacuum filter for filtering and drying the solid-liquid mixture, the filtrate of the vacuum filter is returned to the electrolysis tank, and a reduction furnace for calcining the metal precipitate filtered and dried by the vacuum filter, the An electrolytic solution transfer box is provided between the electrolytic tank and the reaction kettle, and a filtrate storage tank is provided between the vacuum filter and the electrolytic tank.

[0020] The carcass composition of the diamond granite saw blade head is mainly: iron 73 copper 15 nickel 4 ...

Embodiment 2

[0040] This embodiment is the recycling of ceramic tool cutter heads, and the recycling device, process flow and conditions are the same as those in Embodiment 1.

[0041] The carcass composition of ceramic tools is mainly: iron 51 copper 30 nickel 8 tin 6 zinc 5, the particle size of diamond is relatively fine.

[0042] A set of equipment for processing 20 tons of waste ceramic tool bits per month works continuously for 25 days, and can recover 500 kilograms of diamonds, worth 750,000 yuan; recover 2 tons of ultra-fine copper powder, and 17 tons of ultra-fine iron-copper-nickel-tin-zinc alloy powder.

[0043] The calcining reduction process of the ultrafine powder is the same as the existing ultrafine cobalt powder production process.

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Abstract

The invention discloses a method and device for recovering waste diamond cutter heads. The method comprises the following steps that firstly, metal in the waste diamond cutter heads is electrically dissolved in an electric dissolving solution of an electric dissolving tank to separate and recover diamond, then the electrically-dissolved metal-contained ionic solution is extracted to a reaction kettle, a precipitator is added to conduct precipitation reaction to form a metal precipitate, a solid-liquid mixture being subjected to the precipitation reaction is filtered to enable the metal precipitate to be separated from filtrate, and the filtrate returns back to the electric dissolving tank to serve as the electric dissolving solution. The method is characterized in that low voltage is adopted to electrically dissolve metal materials in the waste diamond cutter heads to recover the diamond by applying the principle of corrosion, then electrically-dissolved liquid is led into the precipitator to filter and recover the metal materials, and the filtrate returns back to the electric dissolving tank again to dissolve the cutter heads. The whole process runs continuously, all the substances are completely recovered, waste water is not discharged, and only little hydrogen is generated in the electric dissolving process and directly evacuated by an exhaust fan.

Description

technical field [0001] The invention belongs to a diamond recycling method, in particular to a recycling method and device for waste diamond cutter heads. Background technique [0002] Since the birth of diamond sawing tools and grinding tools in the 1970s, in order to give full play to the role of diamond, people have designed various carcass materials to meet the needs of tool performance, processing materials and processing methods. Compatible requirements. Diamond tools with metal as the matrix use diamond as the cutting material, metal powder as the matrix material, and use powder metallurgy methods to undergo compression molding, sintering and necessary processing. Diamond products are currently the most diverse and the most used The largest and most versatile class of tools. The main components of metal-based diamond cutter heads are diamond, iron, nickel, copper, cobalt, tin, zinc, etc. In the process of production and use, a large number of waste products and res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00C25F3/02C25F7/00B22F9/20
Inventor 郑日升
Owner 郑日升