JP2014074589A - Sample manufacturing device of recycle raw material and sample manufacturing method of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sample manufacturing device that can prepare a test-purposed analysis sample satisfying a standard by crushing a recycle raw material including a substrate with a large-sized component mounted.SOLUTION: A sample manufacturing device 100 for the recycle raw material includes a preparation crusher 30 that crushes the recycle raw material including a mounting substrate and manufactures an analysis sample of 5 mm or smaller. Further, in the sample manufacturing device, the recycle raw material before taken in the preparation crusher 30 may be crushed into a size of 10 to 15 mm or smaller by one or more crushers and a plurality of crushers may be serially arranged on an upstream side of the preparation crusher 30. The sample manufacturing device 100 comprises: a first crusher 10 that crushes the recycle raw material including the mounting substrate; a second crusher 20 that crushes the firstly crushed recycle raw material; and the preparation crusher 30 that crushes the recycle raw material crushed by the second crusher 20 into a size of 5 mm or smaller and prepares the analysis sample.

Description

  The present invention relates to a sample preparation apparatus for recycled raw materials.

  Various substrates contain valuable metals such as gold, silver, copper, platinum, and palladium. Recycling processing for extracting valuable metals from various substrates is attracting attention as an effective use of resources. In recent years, the acceptance of recycled materials such as the above-mentioned substrates from overseas has increased, and profits are expected to increase due to valuable metals recovered from recycled materials.

  In order to efficiently obtain valuable metals from recycled materials, not only select an appropriate treatment method, but also from the economic aspect, accurately analyze the amount of valuable metals contained in the recycled materials in advance. It is important to keep

  In the method of analyzing the content of valuable metals in the recycled raw material, it is necessary to prepare a sample containing valuable metals as a pretreatment. The preparation of such a sample is disclosed in Patent Documents 1 and 2, for example. In Patent Document 1, in a sampling method for collecting a sample for analysis of a recycled material used in copper smelting, (A) a primary material obtained by roughly crushing recycled material that has not been crushed to about 50 mm by a primary crusher. Then, (B) the primary crushed material obtained in the step (A) is pulverized to a size of 40 mm or less by a secondary crusher to obtain a secondary crushed material, and (C) the step (B The secondary crushed material obtained in step 2) is passed through a sieve, and the secondary crushed material larger than 30 mm is returned to the step (B) and further pulverized, and a crushed material having a size of 30 mm or less is collected as a sample. A sampling method is disclosed.

  In Patent Document 2, a recycled material is crushed to a particle size of 20 mm or less by a crusher, a primary sample is collected, and then the primary sample is pulverized to a particle size of 2 mm or less by a micronizer, and then collected by a dust collection system. A preparation method is disclosed in which a secondary sample is collected by mixing and shrinking and finally used as an analytical sample.

JP 2008-249437 A JP 2003-106962 A

  By the way, in Japan, there is no provision for the sample size in the analysis of the recycled material, but in Europe, there is a standard in which the sample size is under 5 mm in the analysis of the recycled material. Therefore, when it is going to receive the recycling raw material from Europe, it is necessary to make the analysis sample of a recycling raw material under 5 mm.

  However, according to the method of Patent Document 1, a 30 mm under sample can be produced, but a 5 mm under sample cannot be produced.

  In the preparation method of Patent Document 2, a 2 mm under sample can be produced. However, the preparation method of Patent Document 2 uses a connector substrate, a substrate frame, a flexible substrate, a printed circuit board, and an IC substrate as recycling materials. When components are mounted on these boards, the thickness of the board increases by the amount of the mounted parts. Therefore, crushing a board on which components are mounted (mounting board) It becomes more difficult than crushing. For example, since components are mounted on the mounting substrate, a lump of the substrate is easily generated during the crushing process, and it is difficult to break into a uniform sample. Moreover, a large and thick substrate such as a heat sink (heat radiating plate) or a transformer core is mounted on a substrate or a power supply substrate mounted on a home appliance. The heat sink is made of a metal such as aluminum or copper, and is three-dimensionally shaped so as to increase the surface area of the fin in order to improve the cooling capacity. For this reason, it is difficult to crush the heat sink as compared to a flat substrate. Further, the transformer core is formed by winding a copper wire several times, and since it has a high density, it is not easy to crush. Thus, the board | substrate with which the large sized component was mounted is more difficult to crush, and it is difficult to crush to 5 mm under as well as 2 mm under by the preparation method shown by patent document 2. FIG.

  In view of the above problems, an object of the present invention is to prepare a test analysis sample that satisfies standards by crushing a recycled material including a mounting substrate.

  The recycle material sample preparation apparatus of the present invention that solves this problem is characterized by comprising a preparation crusher that crushes the recycle material including the mounting substrate and prepares an analysis sample under 5 mm. Thereby, the recycling raw material containing a mounting board | substrate can be crushed, and the analytical sample for a test which satisfy | fills a specification can be prepared.

  In the recycled material sample preparation apparatus, the recycled material before being taken into the preparation crusher may be crushed to under 10 to 15 mm by one or more crushers. The recycled raw material before being taken into the preparation crusher may be crushed to 15 mm under, or may be crushed to 12 mm under. In a more preferred configuration, it is crushed to under 10 mm.

  In the recycled material sample preparation apparatus, a plurality of crushers may be arranged in series upstream of the preparation crusher. The serial arrangement is an arrangement in which a raw material crushed by one crusher is crushed by another crusher. The recycled material sample preparation apparatus was crushed by a primary crusher that crushes the recycled material including the mounting substrate, a secondary crusher that crushes the primary crushed recycled material, and the secondary crusher. It is good also as a structure provided with the preparation crusher which crushes a recycle raw material to 5 mm under, and produces an analysis sample.

  In particular, the secondary crusher may crush the recycled material under 10 to 15 mm. The secondary crusher may crush the recycled raw material to 15 mm under or crush to 12 mm under. In a more preferred configuration, the secondary crusher crushes the recycled material to under 10 mm. Moreover, the said primary crusher is good also as crushing the said recycled raw material to 25-30 mm under.

  In the recycling raw material sample preparation apparatus, the preparation crusher may be a uniaxial crusher. The shaft of the primary crusher may include a blade that shears the recycled material. Moreover, you may arrange | position the axis | shaft of the said primary crusher toward a perpendicular direction. The primary crusher may be a 4-axis crusher. Furthermore, the secondary crusher may be a 4-axis crusher.

  The method for preparing a sample of a recycled material according to the present invention that solves the above-described problem is characterized in that a recycled material including a mounting substrate is crushed to prepare an analysis sample under 5 mm. Thereby, the recycling raw material containing the board | substrate with which the large sized component was mounted is crushed, and the analytical sample for a test which satisfy | fills a specification can be prepared.

  In the sample manufacturing method of the recycled material described above, a rough crushing step of crushing the recycled material including the mounting substrate to under 10 to 15 mm, and the recycled material after the rough crushing step are crushed to prepare an analysis sample of 5 mm under A final crushing step. In the rough crushing step, the recycled raw material may be crushed to an under 15 mm, or may be crushed to an under 12 mm. In a more preferable configuration, the coarse crushing step crushes to 10 mm under.

  In the sample manufacturing method of the recycled material, the rough crushing step may include a plurality of crushing steps. The pre-crushing process may include a primary crushing process and a secondary crushing process.

  In particular, the secondary crushing step may crush the recycled material to under 10-15 mm. In the secondary crushing step, the recycled raw material may be crushed to 15 mm under or 12 mm under. In a more preferable configuration, the recycled raw material is crushed under 10 mm in the secondary crushing step. Moreover, the said primary crushing process is good also as crushing the said recycled raw material to 25-30 mm under.

  According to the sample preparation apparatus for recycled material of the present invention, a recycled material including a substrate on which a large component is mounted can be crushed, and an analytical sample for testing satisfying the standard can be prepared.

It is the equipment flow of the sample preparation apparatus of a recycling raw material.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. FIG. 1 is an equipment flow of a sample production apparatus 100 for recycled materials. Recycled raw material sample preparation apparatus (hereinafter simply referred to as “sample preparation apparatus”) 100 is an apparatus for crushing a recycled raw material to a size that allows sampling and preparing a sample for analysis of the recycled raw material. Recycled raw materials are mainly electronic parts, electrical equipment, and a part of home appliances, and contain valuable metals. The recycled material includes a mounting substrate. Furthermore, the mounting substrate mounted on the home appliance includes a substrate on which a large component is mounted. In addition, unlike other packages and IC chips, large metal parts such as aluminum or copper heat sinks (heat sinks) and transformer cores are mounted on power supply boards mounted on OA equipment home appliances. The components mounted on such a mounting substrate include, for example, components that have a thickness of 5 mm or more when mounted, and are effective for components that include components having a thickness of 10 mm or more. .

  The sample preparation device 100 is a device that crushes recycled raw materials in multiple stages, and includes a primary crusher 10, a secondary crusher 20, and a preparation crusher 30. A method for preparing a sample of recycled material by the sample preparation device 100 includes a rough crushing step and a final crushing step. The coarse crushing step is a primary crushing step of crushing the recycled material to 25-30 mm under by the primary crusher 10 and a secondary crushing of the recycled material after the primary crushing step to 10-15 mm under by the secondary crusher 20. Crushing step. In the final crushing step, the recycled raw material after being roughly crushed by the coarse crushing step is crushed by the preparation crusher 30 to produce an analysis sample under 5 mm.

  The primary crusher 10 is a crusher that accepts a recycled raw material of about 50 to 200 mm and crushes it to an under of 25 to 30 mm. The primary crusher 10 is a 4-axis crusher. As described above, a 4-shaft crusher having a strong crushing force is used to crush metals contained in the recycled material, in particular, solid parts such as heat sinks, transformer cores, and iron cores of capacitors. Moreover, the blade which shears and crushes a raw material may be provided in the rotating shaft of the crusher. The primary crusher 10 can crush 5 t of recycled raw materials per hour.

  The recycled material is packaged in a flexible container bag and conveyed to the sample preparation device 100. The recycled material packaged in the flexible container bag is suspended by a hoist crane and charged into the primary crusher 10. The recycled raw material is crushed to 25-30 mm under in the primary crusher 10, and a part of the crushed recycled raw material is sampled to perform primary sampling. 10% of the remaining recycled material after sample collection is placed on a belt conveyor and conveyed to the secondary crusher 20.

  The secondary crusher 20 is a crusher that accepts a recycled raw material of 25 to 30 mm under which has been conveyed by a belt conveyor and crushes the raw material to under 10 to 15 mm. The secondary crusher 20 is also a 4-axis crusher. In the secondary crusher 20, similarly to the primary crusher 10, a 4-shaft crusher having a strong crushing force is used for crushing recycled raw materials including solid parts. Moreover, the blade which shears and crushes a raw material may be provided in the rotating shaft of the crusher. The secondary crusher 20 can crush 3 t of recycled raw materials per hour.

  The secondary crusher 20 may crush the recycled raw material to 15 mm under or 12 mm under. More preferably, the secondary crusher 20 crushes the recycled raw material to 10 mm or less. In consideration of crushing the recycled raw material to a specified size in the next final crushing step, it is preferable to crush as small as possible in the secondary crusher 20. However, there is a limit to the size that can be crushed by the secondary crusher 20 depending on the size of the raw material to be charged. Here, it is good to determine the crushing capacity of the secondary crusher 20 from the relationship between the crushing capacity of the primary crusher 10 and the crushing capacity of the prepared crusher 30 in the next crushing step. In consideration of the relationship between the crushing capacity of the primary crusher 10 and the crushing capacity of the preparation crusher 30, if necessary, a plurality of crushers are arranged in series so that the preparation crusher 30 can accept. Alternatively, the recycled material may be crushed. Arrangement in series is an arrangement in which a material crushed by one crusher is crushed by another crusher.

  A part of the recycled raw material crushed under 10 to 15 mm in the secondary crusher 20 is collected and sent to the secondary sampling. 10% of the remaining recycled material after sample collection is placed on a belt conveyor and conveyed to the preparation crusher 30.

  The preparation crusher 30 is a crusher that accepts a recycled raw material under 10 to 15 mm that has been conveyed by a belt conveyor and crushes the raw material under 5 mm to produce an analysis sample. The preparation crusher 30 is a vertical uniaxial crusher. The vertical crusher is a crusher in which the axis of the crusher is arranged in the vertical direction. The rotating shaft of the crusher is provided with a blade that shears and crushes the raw material. The preparation crusher 30 can crush 100 kg of recycled raw materials per hour.

The uniaxial crusher is a crusher that shears and crushes a recycled material sandwiched between a rotating blade and a fixed blade. Moreover, since the screen is attached to the discharge port after crushing and crushing is repeated with the blade until crushing is smaller than the hole size of the screen, there is an advantage that the size of the material after crushing can be made constant. Since the preparation crusher 30 is a crusher that performs the final crushing process of the sample preparation device 100, a single-shaft crusher is employed to align the size of the raw material after crushing to a specified size. Further, an impact type crusher such as a hammer mill employs a shearing method because the raw material is divided into a part to be pulverized into a powder and a part to be in a particulate form and cannot be crushed uniformly.
In the horizontal crusher, the fixed blade is installed at the bottom, so the crushing process occurs only at the bottom. On the other hand, the vertical crusher is advantageous in that a cutter can be installed on the entire side surface and a large crushing surface can be obtained. Moreover, the vertical crusher was adopted because the raw material was rolled up by the turning force of the rotary blade, and contacted with each blade uniformly and efficiently crushed. In the preparation crusher 30, the hole size of the screen is 5 mm, and the recycled raw material after crushing is under 5 mm. Recycled raw materials produced by crushing under 5 mm in the preparation crusher 30 are collected and sent to the third sampling. Recycled raw materials left after being crushed in the primary crusher 10, the secondary crusher 20, and the preparation crusher 30 are carried on a belt conveyor to a kiln furnace, incinerated, and sent to a valuable metal recovery process. .

  As described above, the sample preparation device 100 according to the present embodiment has one or more crushers arranged in series, and crushes recycled raw materials in a multi-stage crushing process. It can be crushed to 5 mm or less. Specifically, by crushing the recycled raw material to under 10 to 15 mm by the final crushing step, it becomes possible to produce a 5 mm under sample by the preparation crusher 30 in the final crushing step.

  Furthermore, in the primary crushing process and the secondary crushing process included in the rough crushing process, the recycled raw material is crushed by a 4-axis crusher. Can be reduced to under 10-15 mm. In the above-described embodiment, the coarse crushing process is performed as a primary and secondary two-stage crushing process, and the recycled raw material is crushed to under 10 to 15 mm. However, the coarse crushing process may be only one stage as long as the recycled raw material can be crushed to 10-15 mm under by one stage crushing. On the other hand, if it is not possible to crush to 10 to 15 mm under a two-stage crushing process, a three-stage, four-stage, or several-stage crush process may be provided in series.

  Hereinafter, examples relating to sample preparation of recycled raw materials by the sample preparation apparatus 100 of the above embodiment will be described. The size of the recycled material is about 50 to 200 mm. The recycled material includes a substrate on which a component having a thickness of 5 mm or more is mounted. Substrates and other recycled materials include valuable metals such as gold, silver, copper, platinum, palladium. In the embodiment, 1 t (ton) of a recycled material is processed.

  In the primary crushing process, the 1 t recycled material is crushed by the primary crusher 10 and becomes under 30 mm. A sample for primary sampling is taken from the crushed 30 mm under recycled material. Of the recycled material after sampling, 100 kg is sent to the next secondary crushing step.

  In the secondary crushing step, the recycled raw material under 30 mm is crushed by the secondary crusher 20 to become under 15 mm. A sample for secondary sampling is taken from the crushed 15 mm under recycled material. Of the recycled material after sample collection, 10 kg is sent to the next final crushing step.

  In the final crushing step, the 15 mm under recycled material is crushed by the preparation crusher 30 to produce a 5 mm under sample. A sample for tertiary sampling is taken from the crushed sample of 5 mm under. As described above, the recycled raw material was crushed to 15 mm under before being put into the final crushing step, so that a sample with 5 mm under could be produced in the final crushing step.

  Since the board on which the component is mounted is increased in thickness, it is difficult to crush. However, as described above, the sample preparation apparatus according to the present embodiment crushes the recycle raw material including the mounting board, and has an under 5 mm. This sample can be made. Furthermore, it is more difficult to crush large parts such as board mounting parts and heat sinks and transformer cores mounted on household appliances compared to small and thin packages or boards mounted with IC chips only. The sample preparation apparatus of the present embodiment makes it possible to crush even a mounting board on which a large component is mounted to obtain a 5 mm under sample.

  The above-described embodiments are merely examples for carrying out the present invention, and the present invention is not limited thereto. Various modifications of these embodiments are within the scope of the present invention. It is apparent from the above description that various other embodiments are possible within the scope.

DESCRIPTION OF SYMBOLS 10 Primary crusher 20 Secondary crusher 30 Preparation crusher 100 Sample preparation apparatus

Claims (17)

  An apparatus for producing a sample of recycled material, comprising a preparation crusher for crushing a recycled material including a mounting substrate and producing an analysis sample under 5 mm.   The recycle material sample preparation apparatus according to claim 1, wherein the recycle material before being taken into the preparation crusher is crushed to 10-15 mm under by one or more crushers.   The recycle raw material sample preparation apparatus according to claim 2, wherein a plurality of crushers are arranged in series on the upstream side of the preparation crusher. A primary crusher that crushes recycled materials including the mounting substrate;
A secondary crusher for crushing the primary crushed recycled material;
A prepared crusher for crushing the recycled raw material crushed by the secondary crusher under 5 mm and producing an analysis sample;
The recycle raw material sample preparation apparatus according to claim 3, comprising:   The said secondary crusher crushes the said recycling raw material under 10-15 mm, The sample preparation apparatus of the recycling raw material of Claim 4 characterized by the above-mentioned.   The said primary crusher crushes the said recycling raw material to 25-30 mm under, The sample preparation apparatus of the recycling raw material of Claim 4 or 5 characterized by the above-mentioned.   The said preparation crusher is a uniaxial crusher, The sample preparation apparatus of the recycling raw material as described in any one of Claim 2 to 6 characterized by the above-mentioned.   8. The recycled material sample preparation apparatus according to claim 7, wherein the shaft of the primary crusher includes a blade for shearing the recycled material.   The recycle raw material sample preparation apparatus according to claim 7 or 8, wherein an axis of the primary crusher is arranged in a vertical direction.   5. The recycled material sample preparation apparatus according to claim 4, wherein the primary crusher is a four-axis crusher.   5. The recycling raw material sample preparation apparatus according to claim 4, wherein the secondary crusher is a four-axis crusher.   A method for preparing a sample of recycled material, comprising crushing a recycled material including a mounting substrate and preparing an analysis sample of 5 mm under. A rough crushing step of crushing the recycled material including the mounting substrate to under 10-15 mm;
A final crushing step of crushing the recycled raw material after the rough crushing step to produce a 5 mm under analysis sample;
The method for preparing a sample of recycled material according to claim 12, comprising:   The method for preparing a sample of recycled material according to claim 13, wherein the rough crushing step includes a plurality of crushing steps.   The method for preparing a sample of recycled raw material according to claim 13 or 14, wherein the rough crushing step includes a primary crushing step and a secondary crushing step.   The method for preparing a sample of recycled material according to claim 15, wherein the secondary crushing step crushes the recycled material to under 10 to 15 mm.   The said primary crushing process crushes the said recycled raw material to 25-30 mm under, The sample preparation method of the recycled raw material of Claim 15 or 16 characterized by the above-mentioned.

Images