CN202010694U - Resourceful treatment equipment for dangerous rubbish incineration ash residues - Google Patents
Resourceful treatment equipment for dangerous rubbish incineration ash residues Download PDFInfo
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- CN202010694U CN202010694U CN2011200180913U CN201120018091U CN202010694U CN 202010694 U CN202010694 U CN 202010694U CN 2011200180913 U CN2011200180913 U CN 2011200180913U CN 201120018091 U CN201120018091 U CN 201120018091U CN 202010694 U CN202010694 U CN 202010694U
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Abstract
本实用新型公开了一种危险废物焚烧灰渣的资源化处理设备，包括底座、输送带和振动进料筛，所述输送带的一端设有强磁磁辊，所述的强磁磁辊下方设有接料槽，输送带的另一端为非磁辊，所述的振动进料筛位于输送带上方靠近非磁辊所在侧。本实用新型设备结构简单、运行方便，回收效果较好，在危险废物处理领域具有很好的典型性和示范性，对国内同类企业的危险废物治理和循环经济模式发展的提升可以起到指导和示范作用，具有很好的社会效益。
The utility model discloses a recycling treatment equipment for hazardous waste incineration ash, which comprises a base, a conveying belt and a vibrating feeding screen. One end of the conveying belt is provided with a strong magnetic roller. A receiving trough is provided, and the other end of the conveyor belt is a non-magnetic roller, and the vibrating feed screen is located above the conveyor belt near the side where the non-magnetic roller is located. The utility model has the advantages of simple structure, convenient operation, good recycling effect, good typicality and demonstration in the field of hazardous waste treatment, and can play a guiding role in the promotion of hazardous waste treatment and circular economic model development of similar domestic enterprises. Demonstration role, has very good social benefits.
Description
Technical field
The utility model relates to recycling treatment equipment, relates in particular to the magnetic plant of valuable metal in a kind of dangerous waste incineration lime-ash.
Background technology
Along with the fast development of economic globalization and industry, the hazardous waste that discharges in human being's production and the life process is increasing.According to estimates, the hazardous waste generation in whole world every year is 3.3 hundred million t.The generation of China's hazardous waste also is and increases trend year by year rapidly, China in 2000 hazardous waste annual production is about 8,300,000 t, reached 1,170 ten thousand t in 2003, expect China's hazardous waste generation in 2010 and will reach 2,686 ten thousand t, wherein 2008, Zhejiang Province's hazardous waste generation is 47.79 ten thousand t, expects 2010 and will produce about 600,000 t of hazardous waste.Hazardous waste has one or more above hazard profiles such as toxic, explosivity, inflammability, corrosivity, chemical reactivity, infectiousness and radioactivity, and environment produce is polluted with its distinctive character, be the important pollution sources of water, atmosphere, soil, very big to environmental hazard.The harm of hazardous waste has chronicity and latency, in case its harmfulness outburst, not only can make the person poultry poisoning, can cause burning and explosion accident, also can not burn because of there being control, wind is raised, distillation, weathering atmosphere pollution, in addition, can also pass through sleet osmosis pollution soil, underground water, wash away the pollution rivers,lakes and seas by rainwash, thereby cause hidden danger permanent, that be difficult to recover and consequence.By hazardous waste unreasonable bank up or discharge a lot of countries of the contamination accident that causes in the world happen occasionally, as more than 1000 mouthful of well saliva well contamination accident in the long-pending about 70km scope that causes of the chromium slag muck of China Jinzhou, Liaoning the 1950's, and itai-itai (cadmium pollution) of Japan, minamata disease (mercury pollution) accident or the like.Because severe contamination and potential having a strong impact on that hazardous waste brings, hazardous waste is called " political refuse " in industrially developed country, and therefore, the reinforcement hazardous waste of adopting an effective measure is handled and disposed to have become the task of top priority.
Burning is effective ways of realizing solid waste minimizing, innoxious and resource.Incineration treatment technology has characteristics (incinerating residue is about the 5-15% of original volume) such as minimizing is effective, mainly is suitable for hazardous waste unsuitable recycling or can't security landfill and handles.China focuses on based on the hazardous waste of industrial waste and starts late, but development is very fast, carries out in a lot of cities at present and utilizes incineration technology to handle hazardous waste.(GB18484-2001) stipulate according to China's " dangerous waste incineration pollution control criterion ", dangerous waste incineration residue and flying dust (hereinafter to be referred as residue and flying dust) still belong to hazardous waste, must carry out security landfill disposes, and must carry out heavy metal before the landfill and leach toxicity test, can landfill after the satisfied requirement of marching into the arena.Report according to correlative study, the burning of hazardous waste has changed the form of heavy metal in the refuse, main polluted heavy metals is Cd, Pb, Zn in residue and the flying dust, be main chemical form mainly, but have very high transfer ability and biology availability with solvable and exchange state, residual attitude, Fe-Mn oxide-bonded attitude.According to " the hazardous waste landfill pollutes control criterion " (GB18598-2001), hazardous waste can carry out the landfill disposal after must reaching " allowing to enter the control restriction of landfill district ", therefore, heavy metal must pass through the safety and stability processing in residue and the flying dust, to realize final harmlessness disposing.The safety and stability processing of residue and flying dust has great strategic importance in the processing disposal system of hazardous waste.
General magnetic separation technology major part all is used to the screening of ore, the resource that is used for dangerous waste incineration lime-ash valuable metal reclaims then seldom report, the characteristics of iron ore generally are that magnetic is stronger, compare with incineration residue with the separate impurities degree and to want high many, more convenient with large-scale magnetic separator magnetic separation, efficient also compares higher.And the fusion degree of metal and impurity is higher in the incineration residue, and general being difficult to separated, and do not have what separating effect if only roughly select.
Summary of the invention
The utility model is at the higher characteristics of content of valuable metal in the dangerous waste incineration lime-ash (particularly magnetic such as iron, nickel material), a kind of dangerous waste incineration cinder resource treatment facility is provided, utilize the magnetic separation technology resource to reclaim magnetic materials such as a part of iron, nickel, produce certain resource economic benefit, reduce the total metals that enters landfill yard simultaneously from the source, thereby reduce the ecological risk of landfill.
A kind of dangerous waste incineration cinder resource treatment facility comprises base, conveyer belt and vibration feeder screen, and an end of described conveyer belt is provided with strong magnetic magnetic roller, and the other end is provided with non-magnetic roller, and described strong magnetic magnetic roller below is provided with the groove that connects material; Described vibration feeder screen is positioned at the conveyer belt top near non-magnetic roller place side.
As a kind of preferred, the described groove that connects material has two, is respectively applied for and receives magnetic separation thing and non-magnetic separation thing, and two grooves that connect material are arranged in strong magnetic magnetic roller below along the conveyer belt direction of motion.
The magnetic field intensity of described strong magnetic magnetic roller is more than or equal to 5000 Gausses.
The external speed regulator of described strong magnetic magnetic roller is used to control the speed of service of strong magnetic magnetic roller.
In the utility model equipment when operation, be distributed in air-dry fragmentation, the dangerous waste incineration lime-ash of crossing 100 mesh standard sieves on the conveyer belt equably by vibratory sieve, and adjusting conveyer belt speed by speed regulator is 10～30r/min, carries out magnetic separation.Running along with conveyer belt, namagnetic substance in the dangerous waste incineration lime-ash falls into the groove that connects material at the end of conveyer belt, and magnetisable material is fallen in another groove that connects material owing to by strong magnetic magnetic roller absorption, continuing operation on the conveyer belt when separating fully with strong magnetic magnetic roller.Magnetic separation thing and the non-magnetic separation thing got after the part magnetic separation are cleared up respectively, and the sample after clearing up is measured with atomic absorption spectrophotometry respectively, measures the wherein content of iron, nickel magnetisable material, thereby can calculate corresponding efficiency of magnetic separation.
Because the fusion degree of metal and impurity is higher in the incineration residue, general being difficult to separated, if only roughly select and do not have what separating effect, can only magnetisable material be exposed in the environment by the method for thin choosing, be convenient to separate, since the magnetic of incineration residue a little less than, need select for use strong magnetic to carry out magnetic separation, and will control suitable magnetic separation distance, so the utility model uses the strong magnetic magnetic roller more than or equal to 5000 Gausses.
The conveyer belt speed of magnetic separation also is important, can not be too fast can not be slow excessively, otherwise its efficiency of magnetic separation all can be lower, the utility model control conveyer belt speed is at 10～30r/min.
The utility model device structure is simple, operation is convenient, recovering effect is better, has good typicalness and exemplary in the hazardous waste process field, can play the effect of giving instructions and set examples to the hazardous waste improvement of domestic similar enterprise and the lifting of recycling economy mode development, have good social benefit.
Description of drawings
Fig. 1 is the structural representation of the utility model equipment.
The specific embodiment
A kind of as shown in Figure 1 dangerous waste incineration lime-ash magnetic plant, comprise base 5, conveyer belt 2 and vibration feeder screen 3, one end of conveyer belt 2 is provided with strong magnetic magnetic roller 1, the below of strong magnetic magnetic roller 1 is provided with two grooves 6 that connect material side by side along running direction of conveyor belt, the groove that connects material that wherein is positioned at the conveyer belt below is used to receive magnetisable material, and another groove that connects material is used to receive namagnetic substance.The other end of conveyer belt 2 is non-magnetic roller 4, and vibration feeder screen 3 is positioned at the conveyer belt top near non-magnetic roller 4 place sides.
Conveyer belt 2 length 600mm, the length of strong magnetic magnetic roller 1 is 250mm, and diameter is 50mm, and strong magnetic magnetic roller overhead highly is 1000mm, and the discharging opening of vibration feeder screen 3 and the distance of conveyer belt are 50mm.
The magnetic field intensity of strong magnetic magnetic roller adopts 5000 Gausses.
Adopt the said equipment that Huzhou residue sample is handled, air-dry fragmentation, the dangerous waste incineration lime-ash of crossing 100 mesh standard sieves are distributed on the conveyer belt equably by vibratory sieve, adjusting conveyer belt speed is 10r/min, carries out magnetic separation.Running along with conveyer belt, namagnetic substance in the dangerous waste incineration lime-ash falls into the groove that connects material at the end of conveyer belt 2, and magnetisable material is because by strong magnetic magnetic roller 1 absorption, when continuing to move to below the conveyer belt on conveyer belt, separate fully with strong magnetic magnetic roller 1, fall into another groove that connects material.Magnetic separation thing and the non-magnetic separation thing got after the part magnetic separation are cleared up respectively, and the sample after clearing up is measured with atomic absorption spectrophotometry respectively, measures the wherein content of iron, nickel magnetisable material, thereby can calculate corresponding efficiency of magnetic separation.
Magnetic separation thing after the magnetic separation and non-magnetic separation thing are cleared up respectively, and the sample after clearing up is measured with atomic absorption spectrophotometry respectively, measure the wherein content of iron, nickel magnetisable material, thereby can calculate corresponding efficiency of magnetic separation.
Digestion procedure: accurately take by weighing the 0.5000g sample in 25ml polytetrafluoroethylene (PTFE) crucible, add 10ml hydrochloric acid with the wetting back of little water, heating (lower temperature) is cleared up on the inherent electric hot plate of fume hood, when Specimen eliminating to 1～2ml (visual determination), adds 15ml HNO then
3, when continuing to be heated to the about 5ml of dissolved matter residue (visual determination), add 5ml HF again and add thermal decomposition and remove silicon compound (temperature rises to about 200 ℃), when Specimen eliminating is closely dried (visual determination), add 5ml HClO at last
4, be heated to when clearing up thing and being colourless or faint yellow (iron content is than higher), steam near and do.Take off cooling, add (1+5) HNO
31mL low-grade fever dissolved residue moves in the 50ml volumetric flask, is settled to graticule and shakes up, and with 0.45 μ m membrane filtration, is stored in the plastic bottle to be measured.Replace sample with deionized water, adopt and above identical step, prepare omnidistance preface blank solution.The sample of handling well is carried out NITRATE BY FLAME ATOMIC absorb spectrophotometric determination, analyze the content composition of magnetic material such as Fe wherein.
Table 1 Huzhou residue sample is roughly selected the quality of back magnetic separation thing and non-magnetic separation thing
Table 2 magnetic separation thing is cleared up the result
Annotate: same letter is represented difference not remarkable (p＞0.05), different letter representation significant differences (p＜0.05)
Table 3 magnetic separation result
By The above results as seen, the utility model equipment magnetic separation effect is better, and this equipment is better for magnetic material magnetic separation effects such as Fe in the dangerous waste incineration lime-ash.
Claims (3)
1. the recycling treatment equipment of a dangerous waste incineration lime-ash comprises base, conveyer belt and vibration feeder screen, it is characterized in that: an end of described conveyer belt is provided with strong magnetic magnetic roller, and the other end of conveyer belt is non-magnetic roller; Described strong magnetic magnetic roller below is provided with the groove that connects material; Described vibration feeder screen is positioned at the conveyer belt top near non-magnetic roller place side.
2. recycling treatment equipment as claimed in claim 1 is characterized in that: the described groove that connects material has two, and two grooves that connect material are arranged in strong magnetic magnetic roller below along the conveyer belt direction of motion.
3. recycling treatment equipment as claimed in claim 1 is characterized in that: described strong magnetic magnetic roller is connected with speed regulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200180913U CN202010694U (en) | 2011-01-20 | 2011-01-20 | Resourceful treatment equipment for dangerous rubbish incineration ash residues |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200180913U CN202010694U (en) | 2011-01-20 | 2011-01-20 | Resourceful treatment equipment for dangerous rubbish incineration ash residues |
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| CN202010694U true CN202010694U (en) | 2011-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200180913U Expired - Fee Related CN202010694U (en) | 2011-01-20 | 2011-01-20 | Resourceful treatment equipment for dangerous rubbish incineration ash residues |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759336A (en) * | 2015-04-02 | 2015-07-08 | 章丘市宇龙机械有限公司 | Double layer crusher |
| CN110420737A (en) * | 2019-08-14 | 2019-11-08 | 中国工程物理研究院材料研究所 | A kind of broken pretreatment unit of radioactive incineration ash |
-
2011
- 2011-01-20 CN CN2011200180913U patent/CN202010694U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759336A (en) * | 2015-04-02 | 2015-07-08 | 章丘市宇龙机械有限公司 | Double layer crusher |
| CN110420737A (en) * | 2019-08-14 | 2019-11-08 | 中国工程物理研究院材料研究所 | A kind of broken pretreatment unit of radioactive incineration ash |
| CN110420737B (en) * | 2019-08-14 | 2021-06-04 | 中国工程物理研究院材料研究所 | Radioactive incineration ash crushing pretreatment device |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111019 Termination date: 20130120 |
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| CF01 | Termination of patent right due to non-payment of annual fee |