CN101844145A

CN101844145A - Method for extracting Mulgrain sand by waste industrial refuse

Info

Publication number: CN101844145A
Application number: CN201010145874A
Authority: CN
Inventors: 邱南海
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-04-06
Filing date: 2010-04-06
Publication date: 2010-09-29
Anticipated expiration: 2030-04-06
Also published as: CN101844145B

Abstract

The invention discloses a method for extracting Mulgrain sand by waste industrial refuse. Shell mold slag abandoned in stainless steel fine casting factories is recovered and sequentially carries out operations in the steps of fine selection of the shell mold slag, fine crashing by a crash machine, diversion screening by a magnetic separator, grinding by a Ramon grinding machine, diversion fine selection, element test and the like to finally obtain finished products of Mulgrain sand powder. The Mulgrain sand powder per se obtained by the method contains zirconium powder with proper specific gravity, so the mass and the effect of the Mulgrain sand powder are better than those of the Mulgrain sand directly prepared from Mulgrain mine. Thereby, when the method of the invention is used for recovering the industrial refuse containing the shell mold slag, the materials are saved, the renewable resources of the cyclic utilization are increased, the considerable economic value is generated, and the invention also controls the sewage, protects the environment, and has high social benefits.

Description

A kind of method of utilizing discarded industrial refuse refinement not come sand

Technical field

The present invention relates to the method for extracting of Mo Laisha, relate in particular to and utilize the industrial refuse that contains shell mould waste material to come refine not come the method for sand.

Background technology

Not coming sand is the refractory material that is applied in the precision stainless steel casting technique, generally mixes use with zirconium powder, have anti-high pressure, stretching resistance, protection model indeformable, do not break, not effect such as bleed-out water.In the conventional art, do not come sand not come the ore deposit to come refine to obtain by exploitation, cost and difficulty are all quite high.In China, do not come mainly the distribute minority place of production in Zhangqiu, northerly Shandong, the Huaibei, Anhui and Liaoning of sand, resource is quite in short supply, belongs to rare resources, and supply falls short of demand basically for the sand that do not come of domestic production, also needs from external high price import.And each stainless steel precision casting factory produces many waste materials every day in many big small cities, include a considerable number of do not come sand and zirconium powder in these waste materials, these do not come sand and zirconium powder to have high value, yet but abandoned as rubbish, and be deposited in mostly by the water source of various places, back of long duration waste material presents ugly black, grey, and light red water, dark red water, Heisui River etc. are then flowed out in the heap place.So way has not only been wasted rare resources, more heavy damage environment, polluted water quality, run in the opposite direction with the effort relevant policies of protection environment.If therefore have way that these shell mould slag waste recovery utilizations can be reached the effect of achieving many things at one stroke.

Summary of the invention

The technical problem to be solved in the present invention provides a kind of industrial refuse that contains shell mould slag waste material of stainless steel precision casting factory output that utilizes and comes refine not come the method for sand.

For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of method of utilizing discarded industrial refuse refine not come sand is characterized in that: carry out according to following steps:

(1), collect the industrial refuse contain shell mould slag waste material, will remove as mud, sand, soil, iron, aluminium, glue, cloth, fiber crops and the water of non-shell mould and obtain smart shell mould;

(2), smart shell mould put into disintegrating machine carry out the first road grinding operation, promptly big crushing operation obtains elementary particle; The size Control of elementary particle at the S30-60 order between the S16-30 order;

(3), elementary particle is imported magnetic separator and carry out one-level shunting screening, the discarded storehouse of sand mixture input of not coming of containing the metal powder is removed, guiding contains nonmetallicly not come sand mixture to enter S16-30 order and S30-60 purpose respectively to divide the comb logical sequence, divide the comb logical sequence respectively the product of different size to be carried out categorised collection, do not come the elementary finished product of sand;

(4), will not come the elementary finished product of sand input Raymond roller mill to grind and shunt selected, do not come the dust of powder to be blown into discarded efferent duct and make environmental sanitation and remove and handle non-more than the S200 order; S200 purpose essence do not come the powder product by selected come out to go forward side by side carry out primary package into package post;

(5), to coming sand and not coming the powder product to carry out element chemical examination, content product up to standard is imported exquisite packer's bay and is carried out final packaging.

Further, also do not comprise the step that it is tanned by the sun 3-6 hour with moistening shell mould slag waste material, shine to dry, hard, crisp and refreshing being advisable of feel sensation for dried.

Further, described disintegrating machine adopts horizontal crusher, and horizontal crusher is more convenient when the charging operation; The aperture of disintegrating machine sieve aperture is controlled at the S30-60 order between the S16-30 order, and the aperture will produce a lot of oversize sand particles that do not come greatly, need return to fragmentation, increases cost, and the aperture is little can cause then that discharging is few, quantity is low, also increases cost.

The present invention reclaims by stainless steel precision being cast the discarded shell mould slag of factory, the shell mould slag selected shell mould slag of process successively, the big fragmentation of disintegrating machine, magnetic separator shunting screening, steps such as Raymond roller mill grinds and it is selected to shunt, element chemical examination are operated, obtain essence at last and do not come sand powder finished product, the sand powder itself that do not come that obtains by the method just contains the zirconium powder of an amount of proportion, so its quality and effect are than not coming sand better by what do not come that the ore deposit directly makes; This shows; do not come sand by adopting this method that the industrial refuse that contains shell mould slag is reclaimed refine; both save material, increased recycling regenerated resources, produced considerable economic worth, and also administered sewage, protected environment, had high social benefit.

The specific embodiment

In the present embodiment, the method that the discarded industrial refuse refine of described utilization does not come sand, carry out according to following steps:

(2), smart shell mould put into disintegrating machine carry out the first road grinding operation, promptly big crushing operation, obtain size at the S30-60 order to the elementary particle between the S16-30 order;

(3), elementary particle is imported magnetic separator and carry out one-level shunting screening, the discarded storehouse of sand mixture input of not coming of containing the metal powder is removed, and guiding contains nonmetallicly not come sand mixture to enter S16-30 order and S30-60 purpose respectively to divide the comb logical sequence to carry out categorised collection not come the elementary finished product of sand;

(4), will not come the elementary finished product of sand input Raymond roller mill to grind and shunt selected, do not come the dust of sand powder to be blown into discarded efferent duct and make environmental sanitation and remove and handle non-more than the S200 order; S200 purpose essence do not come the powder product by selected come out to go forward side by side carry out primary package into package post;

If what collect is not dried with moistening shell mould slag waste material, also need it was tanned by the sun 6 hours, can certainly be between 3-6 hour, shine to dry, hard, crisp and refreshing being advisable of feel sensation.

Described disintegrating machine adopts horizontal crusher, and horizontal crusher is more convenient when the charging operation; S30-60 order and S16-30 order are adopted in the aperture of disintegrating machine sieve aperture, can certainly be that the S30-60 order is to the size between the S16-30 order, the aperture will produce a lot of oversize sand particles that do not come greatly, need return to fragmentation, increase cost, the aperture is little can cause then that discharging is few, quantity is low, also increases cost.

According to the detection that China Guangzhou Analysis ﹠. Test Center does not come sand, S200 purpose not to come powder to carry out to S16-30 order, S30-60 purpose respectively, its analyzing and testing is the result see the following form respectively:

The sample title: the S16-30 order does not come sand

The sample title: the S30-60 order does not come sand

The sample title: the S200 order does not come powder

Sample detection result by comparing above-mentioned three each specifications as can be known, the sand product that do not come that obtains through method refine of the present invention has reached the requirement of industrial use fully.

Claims

1. the method that the industrial refuse refine does not come sand is discarded in a utilization, it is characterized in that: carry out according to following steps:

(2), smart shell mould put into disintegrating machine carry out the first road grinding operation, promptly big crushing operation obtains elementary particle; The size Control of elementary particle at the S30-60 order between the S16-30 order.

(5), do not come sand powder product to carry out element chemical examination, content product up to standard is imported exquisite packer's bay and is carried out final packaging to essence.

2. the method that the discarded industrial refuse refine of utilization according to claim 1 does not come sand is characterized in that: also do not comprise the step that it is tanned by the sun 3-6 hour for dried with moistening shell mould slag waste material, shine to dry, hard, crisp and refreshing being advisable of feel sensation.

3. the method that the discarded industrial refuse refine of utilization according to claim 1 does not come sand, it is characterized in that: described disintegrating machine adopts the horizontal crusher of being convenient to charging, and the aperture of disintegrating machine sieve aperture is controlled at the S30-60 order between the S16-30 order.