CN107824431A - A kind of method of wet method carbide slag screening removal of impurities - Google Patents
A kind of method of wet method carbide slag screening removal of impurities Download PDFInfo
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- CN107824431A CN107824431A CN201711211543.8A CN201711211543A CN107824431A CN 107824431 A CN107824431 A CN 107824431A CN 201711211543 A CN201711211543 A CN 201711211543A CN 107824431 A CN107824431 A CN 107824431A
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- carbide slag
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- wet method
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- 239000002893 slag Substances 0.000 title claims abstract description 110
- 238000000034 method Methods 0.000 title claims abstract description 69
- 239000012535 impurity Substances 0.000 title claims abstract description 55
- 238000012216 screening Methods 0.000 title claims abstract description 39
- 230000004913 activation Effects 0.000 claims abstract description 77
- 239000002002 slurry Substances 0.000 claims abstract description 67
- 238000004062 sedimentation Methods 0.000 claims abstract description 23
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims abstract description 17
- 238000000926 separation method Methods 0.000 claims abstract description 15
- 239000002245 particle Substances 0.000 claims description 44
- 239000000463 material Substances 0.000 claims description 39
- 239000008187 granular material Substances 0.000 claims description 17
- 238000000746 purification Methods 0.000 claims description 17
- 238000007873 sieving Methods 0.000 claims description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- 229910052799 carbon Inorganic materials 0.000 claims description 16
- 239000007787 solid Substances 0.000 claims description 15
- 239000012530 fluid Substances 0.000 claims description 9
- 238000002604 ultrasonography Methods 0.000 claims description 5
- 238000005119 centrifugation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 238000007670 refining Methods 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 1
- 239000000696 magnetic material Substances 0.000 description 13
- 230000008859 change Effects 0.000 description 7
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 6
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000005997 Calcium carbide Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 235000012771 pancakes Nutrition 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/30—Combinations with other devices, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a kind of method of wet method carbide slag screening removal of impurities, it is characterised in that comprises the following steps：(1), by impurity such as wet method carbide slag slurries sedimentation separation ferrosilicon and carbon granules；(2), tentatively sieved at least through No. 2 vibratory sieves；(3), single or multiple lift ultrasonic activation is introduced to be sieved；(4), electromagnetism cleans.Compared with prior art, the screening problem that the present invention overcomes present in traditional high viscosity carbide slag slurries screening dedoping step easily network blocking, efficiency is low, refining effect is poor etc., increase substantially screening effect and operating efficiency, equipment volume and cost of investment are reduced, realizes the heavy industrialization application of wet method carbide slag separating-purifying.
Description
Technical field
The present invention relates to a kind of method of wet method carbide slag screening removal of impurities, belong to chemical technology field.
Background technology
Carbide slag is the solid residue after calcium carbide production acetylene gas, big according to the ratio of calcium carbide during production acetylene and water
It is small, it is divided into drying acetylene and wet method acetylene.The carbide slag water content of wet method acetylene generation is between 85%~92%, by heavy
Disposal is transported outward again after turning into the wet carbide slag that moisture content is 30%~40% after drop, press filtration or is re-used.
The main component of carbide slag is Ca (OH)2, additionally containing unreacted carbon granule, SiO2、Al2O3, sulfide, magnesium
Inorganic matter and a small amount of organic matters such as oxide, hydroxide with the metal such as iron.At impurity one side influence in carbide slag
Science and engineering skill and cost, as the ferrosilicon presence of bulky grain may damage filter cloth, increase the replacement frequency of filter cloth.On the other hand, it is miscellaneous
The presence of matter reduces the purity of calcium hydroxide, influences the later use of carbide slag, such as the application in terms of coating, chemical industry stone
Ash, desulfurization circulate production aspect for calcium carbide etc. with lime and carbide slag.It is therefore desirable to be purified to carbide slag, it is
Carbide slag recycles offer condition.
The method purified at present to carbide slag is broadly divided into chemical method and Physical according to purification principle.
Chemical method is mainly purified using chemical reaction, and product purity is high, but is needed to use in production process more
Chemical reagent, expense is both increased considerably, secondary pollution may be caused again, be only applicable to produce the product of high additive value.
Physical is using the difference of granular size, density etc. between carbide slag and impurity, realizes hydrogen-oxygen in carbide slag
Change the separating-purifying of calcium and impurity, the method advantage is treating capacity is big, technique is simple, cost is low etc..Currently used Physical master
There are sedimentation, sieve method, hydraulic cyclone method and pneumatic concentration etc..Wherein, sieve method is mainly according to material particles difference in size
To purify, its advantage is equipment is simple, occupied ground is small, and operating cost is low etc., and sieve method is divided into simple sieve method and vibratory sieve
Point-score.
But because the viscosity of carbide slag slurries in wet method acetylene is higher, when being sieved by simple sieve method, material holds very much
Sieve aperture is easily blocked, causes efficiency very low.And ultrasonic activation sieve is that short arc, a height are re-introduced on the basis of traditional shaker
The ultrasonic vibration ripple of frequency, makes the material on compass screen surface remain suspended state, so as to suppress to adhere to, rub, pancake, wedging etc.
Network blocking factor.Solve strong adsorptivity, the easily screening such as reunion, high electrostatic, fine, high density, Specific gravity problem, be suitable for height
The screening of quality, fine powder uses.
Therefore, a kind of method of wet method carbide slag screening removal of impurities, it is especially a kind of high viscous using ultrasonic activation sieve progress
The method of property wet method carbide slag purification ＆ isolation is suggested.
The content of the invention
It is an object of the invention to provide a kind of method of wet method carbide slag screening removal of impurities, to overcome traditional high viscosity carbide slag
The screening problem that pulp screen divides easy network blocking present in dedoping step, efficiency is low, refining effect is poor etc., increases substantially screening effect
And operating efficiency, equipment volume and cost of investment are reduced, realizes the heavy industrialization application of wet method carbide slag separating-purifying.
To achieve the above object, the present invention provides following technical scheme：
A kind of method of wet method carbide slag screening removal of impurities, comprises the following steps：
(1) settle：The wet method carbide slag slurries that solid content is 8~12% are transported to settling tank, sedimentation separation is therein big
The impurity such as size, the ferrosilicon of big proportion and bulky grain carbon granule, obtain the material that particle diameter is less than 1mm.
(2) vibratory sieve just separates：It is described by material isolated in above-mentioned steps (1) at least through 2 vibrosieves
The mesh number of vibratory sieve is respectively 20 mesh and 100 mesh, and it is big more than 0.15mm more than 0.85mm and particle diameter can to screen out particle diameter respectively
Granule foreign；
Further, the carbide slag slurries handled that sieved by step (2) are directly entered ultrasonic activation sieve by pipeline, or
It is stored in the fluid reservoir provided with agitating device, the agitating device can prevent material sedimentation hardening, be advantageous to the defeated of later stage
Send and sieve.
(3) ultrasonic activation sieve subdivision：Carbide slag slurries through above-mentioned steps (2) sieving processing are introduced into single or multiple lift to surpass
Acoustic vibration is sieved, and the sieve aperture of the ultrasonic activation sieve is 200~500 mesh, and the ultrasonic activation sieve is high frequency
Ultrasonic activation sieves；
Preferably, the combination of screens of different meshes is selected to be sieved.
Further, the sieve aperture of the ultrasonic activation sieve is preferably 300~400 mesh.
Further, the vibration frequency of the high-frequency ultrasonic vibratory sieve is in 20,000 hertzs.
Further, ultrasonic Netcom's device is provided with the ultrasonic activation sieve, ultrasonic Netcom's device is provided with clear net
Transducer, ultrasonic activation sieve continuous operation a period of time in the step (3), or batch (-type) ultrasonic activation sieve operation 1
After~4 times, when sieve aperture percent of pass has obvious decline, i.e. when the percent of pass of sieve aperture drops to 80% or so, start clear net
Transducer, the tamper of network interface is removed, in favor of continuing to run with for ultrasonic vibrating screen next time, ultrasonic Netcom's device has
Rapidly and efficiently, improve clear net quality, do not change network interface size, do not injure the features such as silk screen surface quality.
(4) electromagnetism cleans：The carbide slag slurries that purification is sieved through ultrasonic activation in above-mentioned steps (3) are introduced into magnetic field intensity
Region between 0.01~0.5T, remove fine magnetic material therein.
Further, the time of the electromagnetism removal of impurities is 5-30min.
Further, the carbide slag slurries after step (4) magnetic impurity removing enter centrifugation systems and press filteration system, make calcium carbide
80~90% moisture content separates with carbide slag in slag, the water content of carbide slag is reduced to less than 40%.
Compared with prior art, the invention has the characteristics that：
1st, the present invention makes the carbide slag slurries on compass screen surface remain suspension using the ultrasonic acceleration of ultrasonic activation sieve
State, so as to suppress the network blocking factors such as the adhesion in carbide slag slurries screening process, friction, pancake, wedging, make the particle of screening more smart
Carefully, it is more efficient, it is suitable for the extensive separating-purifying of high viscosity carbide slag.
2nd, after by the screening removal of impurities of the present invention, the content of calcium hydroxide can reach 86~96% in carbide slag slurries, hydrogen
The purity of calcium oxide improves 5%~10% relative to prior art, and the impurity content such as ferrosilicon and carbon granule is greatly lowered, pole
The big high-value-use for promoting carbide slag slurries.
3rd, the present invention carries out removal of impurities purification for wet method carbide slag, reduces high-temperature drying step of the prior art, has
The saving production cost of effect, energy-saving and emission-reduction, has reached the purpose of green production.
Embodiment
The following detailed description of the preferred embodiment of the present invention.
Embodiment 1：Comprise the following steps：
(1) settle：The wet method carbide slag slurries that solid content is 8~12% are transported to settling tank, sedimentation separation is therein big
The impurity such as size, the ferrosilicon of big proportion and bulky grain carbon granule, obtain the material that particle diameter is less than 1mm；
(2) vibratory sieve just separates：Material isolated in above-mentioned steps (1) is passed through into 2 vibrosieves, the vibration
The mesh number of sieve is respectively 20 mesh and 100 mesh, can screen out the bulky grain that particle diameter is more than 0.15mm more than 0.85mm and particle diameter respectively
Impurity, the carbide slag slurries for processing of sieving then are directly entered ultrasonic activation by pipeline and sieved；
(3) ultrasonic activation sieve subdivision：Carbide slag slurries through above-mentioned steps (2) sieving processing are introduced into individual layer ultrasonic wave to shake
Dynamic to be sieved, the sieve aperture of the ultrasonic activation sieve is 500 mesh, and the ultrasonic activation sieve vibrates for high-frequency ultrasonic
Sieve, the vibration frequency of the high-frequency ultrasonic vibratory sieve is in 20,000 hertzs；
(4) electromagnetism cleans：The carbide slag slurries that purification is sieved through ultrasonic activation in above-mentioned steps (3) are introduced into magnetic field intensity
For 0.5T region, clean 5min, removes fine magnetic material therein.
Embodiment 2：Comprise the following steps：
(1) settle：The wet method carbide slag slurries that solid content is 8~12% are transported to settling tank, sedimentation separation is therein big
The impurity such as size, the ferrosilicon of big proportion and bulky grain carbon granule, obtain the material that particle diameter is less than 1mm；
(2) vibratory sieve just separates：Material isolated in above-mentioned steps (1) is passed through into 2 vibrosieves, the vibration
The mesh number of sieve is respectively 20 mesh and 100 mesh, can screen out the bulky grain that particle diameter is more than 0.15mm more than 0.85mm and particle diameter respectively
Impurity, the carbide slag slurries for processing of sieving then are directly entered ultrasonic activation by pipeline and sieved；
(3) ultrasonic activation sieve subdivision：Carbide slag slurries through above-mentioned steps (2) sieving processing are introduced into individual layer ultrasonic wave to shake
Dynamic to be sieved, the sieve aperture of the ultrasonic activation sieve is 300 mesh, and the ultrasonic activation sieve vibrates for high-frequency ultrasonic
Sieve, the vibration frequency of the high-frequency ultrasonic vibratory sieve is in 20,000 hertzs；
(4) electromagnetism cleans：The carbide slag slurries that purification is sieved through ultrasonic activation in above-mentioned steps (3) are introduced into magnetic field intensity
For 0.45T region, clean 10min, removes fine magnetic material therein.
Embodiment 3：Comprise the following steps：
(1) settle：The wet method carbide slag slurries that solid content is 8~12% are transported to settling tank, sedimentation separation is therein big
The impurity such as size, the ferrosilicon of big proportion and bulky grain carbon granule, obtain the material that particle diameter is less than 1mm；
(2) vibratory sieve just separates：Material isolated in above-mentioned steps (1) is passed through into 2 vibrosieves, the vibration
The mesh number of sieve is respectively 20 mesh and 100 mesh, can screen out the bulky grain that particle diameter is more than 0.15mm more than 0.85mm and particle diameter respectively
Impurity, the carbide slag slurries for processing of sieving then are directly entered ultrasonic activation by pipeline and sieved；
(3) ultrasonic activation sieve subdivision：Carbide slag slurries through above-mentioned steps (2) sieving processing are introduced into 2 layers of ultrasonic wave to shake
Dynamic to be sieved, the sieve aperture of the ultrasonic activation sieve is 250 mesh, and the ultrasonic activation sieve vibrates for high-frequency ultrasonic
Sieve, the vibration frequency of the high-frequency ultrasonic vibratory sieve is in 20,000 hertzs；
(4) electromagnetism cleans：The carbide slag slurries that purification is sieved through ultrasonic activation in above-mentioned steps (3) are introduced into magnetic field intensity
For 0.4T region, clean 15min, removes fine magnetic material therein.
Embodiment 4：Comprise the following steps：
(1) settle：The wet method carbide slag slurries that solid content is 8~12% are transported to settling tank, sedimentation separation is therein big
The impurity such as size, the ferrosilicon of big proportion and bulky grain carbon granule, obtain the material that particle diameter is less than 1mm；
(2) vibratory sieve just separates：Material isolated in above-mentioned steps (1) is passed through into 2 vibrosieves, the vibration
The mesh number of sieve is respectively 20 mesh and 100 mesh, can screen out the bulky grain that particle diameter is more than 0.15mm more than 0.85mm and particle diameter respectively
Impurity, the carbide slag slurries for processing of sieving then are directly entered ultrasonic activation by pipeline and sieved；
(3) ultrasonic activation sieve subdivision：Carbide slag slurries through above-mentioned steps (2) sieving processing are introduced into 3 layers of ultrasonic wave to shake
Dynamic to be sieved, the sieve aperture of the ultrasonic activation sieve is 350 mesh, and the ultrasonic activation sieve vibrates for high-frequency ultrasonic
Sieve, the vibration frequency of the high-frequency ultrasonic vibratory sieve is in 20,000 hertzs；
(4) electromagnetism cleans：The carbide slag slurries that purification is sieved through ultrasonic activation in above-mentioned steps (3) are introduced into magnetic field intensity
For 0.35T region, clean 20min, removes fine magnetic material therein.
Embodiment 5：Comprise the following steps：
(1) settle：The wet method carbide slag slurries that solid content is 8~12% are transported to settling tank, sedimentation separation is therein big
The impurity such as size, the ferrosilicon of big proportion and bulky grain carbon granule, obtain the material that particle diameter is less than 1mm；
(2) vibratory sieve just separates：Material isolated in above-mentioned steps (1) is passed through into 2 vibrosieves, the vibration
The mesh number of sieve is respectively 20 mesh and 100 mesh, can screen out the bulky grain that particle diameter is more than 0.15mm more than 0.85mm and particle diameter respectively
Impurity, the carbide slag slurries for processing of sieving then are directly entered ultrasonic activation by pipeline and sieved；
(3) ultrasonic activation sieve subdivision：The carbide slag slurries handled that will be sieved through above-mentioned steps (2) introduce 2 layers of different meshes
The ultrasonic activation of combination of screens is sieved, and the sieve aperture of ultrasonic activation sieve is 200 mesh and 500 mesh, the ultrasound
Ripple vibratory sieve is high-frequency ultrasonic vibratory sieve, and the vibration frequency of the high-frequency ultrasonic vibratory sieve is in 20,000 hertzs；
(4) electromagnetism cleans：The carbide slag slurries that purification is sieved through ultrasonic activation in above-mentioned steps (3) are introduced into magnetic field intensity
For 0.3T region, clean 25min, removes fine magnetic material therein.
Embodiment 6：Comprise the following steps：
(1) settle：The wet method carbide slag slurries that solid content is 8~12% are transported to settling tank, sedimentation separation is therein big
The impurity such as size, the ferrosilicon of big proportion and bulky grain carbon granule, obtain the material that particle diameter is less than 1mm；
(2) vibratory sieve just separates：Material isolated in above-mentioned steps (1) is passed through into 2 vibrosieves, the vibration
The mesh number of sieve is respectively 20 mesh and 100 mesh, can screen out the bulky grain that particle diameter is more than 0.15mm more than 0.85mm and particle diameter respectively
Impurity, the carbide slag slurries for processing of sieving then are directly entered ultrasonic activation by pipeline and sieved；
(3) ultrasonic activation sieve subdivision：The carbide slag slurries handled that will be sieved through above-mentioned steps (2) introduce 3 layers of different meshes
The ultrasonic activation of combination of screens is sieved, and the sieve aperture of the ultrasonic activation sieve is respectively 250 mesh, 350 mesh and 450
Mesh, the ultrasonic activation sieve is high-frequency ultrasonic vibratory sieve, and the vibration frequency of the high-frequency ultrasonic vibratory sieve is at 20,000 hertz
Left and right；
(4) electromagnetism cleans：The carbide slag slurries that purification is sieved through ultrasonic activation in above-mentioned steps (3) are introduced into magnetic field intensity
For 0.25T region, clean 30min, removes fine magnetic material therein.
Embodiment 7：Comprise the following steps：
(1) settle：The wet method carbide slag slurries that solid content is 8~12% are transported to settling tank, sedimentation separation is therein big
The impurity such as size, the ferrosilicon of big proportion and bulky grain carbon granule, obtain the material that particle diameter is less than 1mm；
(2) vibratory sieve just separates：Material isolated in above-mentioned steps (1) is passed through into 2 vibrosieves, the vibration
The mesh number of sieve is respectively 20 mesh and 100 mesh, can screen out the bulky grain that particle diameter is more than 0.15mm more than 0.85mm and particle diameter respectively
Impurity, the carbide slag slurries obtained after screening are stored in the fluid reservoir provided with agitating device, the agitating device can prevent
Material sedimentation hardening, is advantageous to the conveying and screening in later stage；
(3) ultrasonic activation sieve subdivision：Carbide slag slurries through above-mentioned steps (2) sieving processing are introduced into individual layer ultrasonic wave to shake
Dynamic to be sieved, the sieve aperture of the ultrasonic activation sieve is 200 mesh, and the ultrasonic activation sieve vibrates for high-frequency ultrasonic
Sieve, the vibration frequency of the high-frequency ultrasonic vibratory sieve is in 20,000 hertzs；
(4) electromagnetism cleans：The carbide slag slurries that purification is sieved through ultrasonic activation in above-mentioned steps (3) are introduced into magnetic field intensity
For 0.2T region, clean 15min, removes fine magnetic material therein.
Embodiment 8：Comprise the following steps：
(1) settle：The wet method carbide slag slurries that solid content is 8~12% are transported to settling tank, sedimentation separation is therein big
The impurity such as size, the ferrosilicon of big proportion and bulky grain carbon granule, obtain the material that particle diameter is less than 1mm；
(2) vibratory sieve just separates：Material isolated in above-mentioned steps (1) is passed through into 2 vibrosieves, the vibration
The mesh number of sieve is respectively 20 mesh and 100 mesh, can screen out the bulky grain that particle diameter is more than 0.15mm more than 0.85mm and particle diameter respectively
Impurity, the carbide slag slurries obtained after screening are stored in the fluid reservoir provided with agitating device, the agitating device can prevent
Material sedimentation hardening, is advantageous to the conveying and screening in later stage；
(3) ultrasonic activation sieve subdivision：Carbide slag slurries through above-mentioned steps (2) sieving processing are introduced into individual layer ultrasonic wave to shake
Dynamic to be sieved, the sieve aperture of the ultrasonic activation sieve is 400 mesh, and the ultrasonic activation sieve vibrates for high-frequency ultrasonic
Sieve, the vibration frequency of the high-frequency ultrasonic vibratory sieve is in 20,000 hertzs；
(4) electromagnetism cleans：The carbide slag slurries that purification is sieved through ultrasonic activation in above-mentioned steps (3) are introduced into magnetic field intensity
For 0.15T region, clean 10min, removes fine magnetic material therein.
Embodiment 9：Comprise the following steps：
(1) settle：The wet method carbide slag slurries that solid content is 8~12% are transported to settling tank, sedimentation separation is therein big
The impurity such as size, the ferrosilicon of big proportion and bulky grain carbon granule, obtain the material that particle diameter is less than 1mm；
(2) vibratory sieve just separates：Material isolated in above-mentioned steps (1) is passed through into 2 vibrosieves, the vibration
The mesh number of sieve is respectively 20 mesh and 100 mesh, can screen out the bulky grain that particle diameter is more than 0.15mm more than 0.85mm and particle diameter respectively
Impurity, the carbide slag slurries obtained after screening are stored in the fluid reservoir provided with agitating device, the agitating device can prevent
Material sedimentation hardening, is advantageous to the conveying and screening in later stage；
(3) ultrasonic activation sieve subdivision：Carbide slag slurries through above-mentioned steps (2) sieving processing are introduced into 4 layers of ultrasonic wave to shake
Dynamic to be sieved, the sieve aperture of the ultrasonic activation sieve is 450 mesh, and the ultrasonic activation sieve vibrates for high-frequency ultrasonic
Sieve, the vibration frequency of the high-frequency ultrasonic vibratory sieve is in 20,000 hertzs；
(4) electromagnetism cleans：The carbide slag slurries that purification is sieved through ultrasonic activation in above-mentioned steps (3) are introduced into magnetic field intensity
For 0.1T region, clean 5min, removes fine magnetic material therein.
Embodiment 10：Comprise the following steps：
(1) settle：The wet method carbide slag slurries that solid content is 8~12% are transported to settling tank, sedimentation separation is therein big
The impurity such as size, the ferrosilicon of big proportion and bulky grain carbon granule, obtain the material that particle diameter is less than 1mm；
(2) vibratory sieve just separates：Material isolated in above-mentioned steps (1) is passed through into 2 vibrosieves, the vibration
The mesh number of sieve is respectively 20 mesh and 100 mesh, can screen out the bulky grain that particle diameter is more than 0.15mm more than 0.85mm and particle diameter respectively
Impurity, the carbide slag slurries obtained after screening are stored in the fluid reservoir provided with agitating device, the agitating device can prevent
Material sedimentation hardening, is advantageous to the conveying and screening in later stage；
(3) ultrasonic activation sieve subdivision：Carbide slag slurries through above-mentioned steps (2) sieving processing are introduced into 5 layers of ultrasonic wave to shake
Dynamic to be sieved, the sieve aperture of the ultrasonic activation sieve is 300 mesh, and the ultrasonic activation sieve vibrates for high-frequency ultrasonic
Sieve, the vibration frequency of the high-frequency ultrasonic vibratory sieve is in 20,000 hertzs；
(4) electromagnetism cleans：The carbide slag slurries that purification is sieved through ultrasonic activation in above-mentioned steps (3) are introduced into magnetic field intensity
For 0.05T region, clean 25min, removes fine magnetic material therein.
Embodiment 11：Comprise the following steps：
(1) settle：The wet method carbide slag slurries that solid content is 8~12% are transported to settling tank, sedimentation separation is therein big
The impurity such as size, the ferrosilicon of big proportion and bulky grain carbon granule, obtain the material that particle diameter is less than 1mm；
(2) vibratory sieve just separates：Material isolated in above-mentioned steps (1) is passed through into 2 vibrosieves, the vibration
The mesh number of sieve is respectively 20 mesh and 100 mesh, can screen out the bulky grain that particle diameter is more than 0.15mm more than 0.85mm and particle diameter respectively
Impurity, the carbide slag slurries obtained after screening are stored in the fluid reservoir provided with agitating device, the agitating device can prevent
Material sedimentation hardening, is advantageous to the conveying and screening in later stage；
(3) ultrasonic activation sieve subdivision：The carbide slag slurries handled that will be sieved through above-mentioned steps (2) introduce 4 layers of different meshes
The ultrasonic activation of combination of screens is sieved, and the sieve aperture of the ultrasonic activation sieve is respectively 200 mesh, 300 mesh, 400 mesh
With 500 mesh, the ultrasonic activation sieve is high-frequency ultrasonic vibratory sieve, and the vibration frequency of the high-frequency ultrasonic vibratory sieve is 2
Ten thousand hertzs；
(4) electromagnetism cleans：The carbide slag slurries that purification is sieved through ultrasonic activation in above-mentioned steps (3) are introduced into magnetic field intensity
For 0.01T region, clean 20min, removes fine magnetic material therein.
Embodiment 12：Comprise the following steps：
(1) settle：The wet method carbide slag slurries that solid content is 8~12% are transported to settling tank, sedimentation separation is therein big
The impurity such as size, the ferrosilicon of big proportion and bulky grain carbon granule, obtain the material that particle diameter is less than 1mm；
(2) vibratory sieve just separates：Material isolated in above-mentioned steps (1) is passed through into 2 vibrosieves, the vibration
The mesh number of sieve is respectively 20 mesh and 100 mesh, can screen out the bulky grain that particle diameter is more than 0.15mm more than 0.85mm and particle diameter respectively
Impurity, the carbide slag slurries obtained after screening are stored in the fluid reservoir provided with agitating device, the agitating device can prevent
Material sedimentation hardening, is advantageous to the conveying and screening in later stage；
(3) ultrasonic activation sieve subdivision：The carbide slag slurries handled that will be sieved through above-mentioned steps (2) introduce 5 layers of different meshes
The ultrasonic activation of combination of screens is sieved, the sieve aperture of ultrasonic activation sieve be respectively 200 mesh, 250 mesh, 300 mesh,
400 mesh and 500 mesh, the ultrasonic activation sieve are high-frequency ultrasonic vibratory sieve, and the vibration of the high-frequency ultrasonic vibratory sieve is frequently
Rate is in 20,000 hertzs；
(4) electromagnetism cleans：The carbide slag slurries that purification is sieved through ultrasonic activation in above-mentioned steps (3) are introduced into magnetic field intensity
For 0.5T region, clean 30min, removes fine magnetic material therein.
Embodiment 13：Compared with any embodiment of embodiment 1~12, difference in this case is that：By step (4) magnetic
Property removal of impurities after carbide slag slurries enter centrifugation systems and press filteration system, divide 80~90% moisture content and carbide slag in carbide slag
From making the water content of carbide slag be reduced to less than 40%.
Embodiment 14：Compared with any embodiment of embodiment 1~13, difference in this case is that：The ultrasonic wave shakes
It is provided with ultrasonic Netcom's device in dynamic sieve, ultrasonic Netcom's device is provided with clear net transducer, ultrasonic activation in the step (3)
Sieve continuous operation a period of time, when sieve aperture percent of pass has obvious decline, i.e. the percent of pass of sieve aperture drops to 80% or so
When, start clear net transducer, remove the tamper of network interface, in favor of continuing to run with for ultrasonic vibrating screen next time, the ultrasound
Netcom's device have the characteristics that rapidly and efficiently, improve clear net quality, do not change network interface size, do not injure silk screen surface quality.
Embodiment 15：Compared with any embodiment of embodiment 1~13, difference in this case is that：The ultrasonic wave shakes
Ultrasonic Netcom's device is provided with dynamic sieve, ultrasonic Netcom's device is provided with clear net transducer, and batch (-type) is ultrasonic in the step (3)
After ripple vibratory sieve is run 4 times, start clear net transducer, remove the tamper of network interface, in favor of ultrasonic vibrating screen next time after
Reforwarding row, ultrasonic Netcom's device have rapidly and efficiently, improve clear net quality, do not change network interface size, do not injure silk screen table
The features such as face quality.
Embodiment 16：Compared with any embodiment of embodiment 1~13, difference in this case is that：The ultrasonic wave shakes
Ultrasonic Netcom's device is provided with dynamic sieve, ultrasonic Netcom's device is provided with clear net transducer, and batch (-type) is ultrasonic in the step (3)
After ripple vibratory sieve is run 1 time, if sieve aperture percent of pass has obvious decline, i.e. the percent of pass of sieve aperture drops to 80% or so
When, start clear net transducer, remove the tamper of network interface, in favor of continuing to run with for ultrasonic vibrating screen next time, the ultrasound
Netcom's device have the characteristics that rapidly and efficiently, improve clear net quality, do not change network interface size, do not injure silk screen surface quality.
Embodiment 17：Compared with any embodiment of embodiment 1~13, difference in this case is that：The ultrasonic wave shakes
Ultrasonic Netcom's device is provided with dynamic sieve, ultrasonic Netcom's device is provided with clear net transducer, and batch (-type) is ultrasonic in the step (3)
After ripple vibratory sieve is run 3 times, when sieve aperture percent of pass has obvious decline, i.e. the percent of pass of sieve aperture drops to 80% or so
When, start clear net transducer, remove the tamper of network interface, in favor of continuing to run with for ultrasonic vibrating screen next time, the ultrasound
Netcom's device have the characteristics that rapidly and efficiently, improve clear net quality, do not change network interface size, do not injure silk screen surface quality.
Embodiment 18：Compared with any embodiment of embodiment 1~13, difference in this case is that：The ultrasonic wave shakes
Ultrasonic Netcom's device is provided with dynamic sieve, ultrasonic Netcom's device is provided with clear net transducer, and batch (-type) is ultrasonic in the step (3)
After ripple vibratory sieve is run 2 times, start clear net transducer, remove the tamper of network interface, in favor of ultrasonic vibrating screen next time after
Reforwarding row, ultrasonic Netcom's device have rapidly and efficiently, improve clear net quality, do not change network interface size, do not injure silk screen table
The features such as face quality.
Above-described is only the preferred embodiment of the present invention, it is noted that for one of ordinary skill in the art
For, without departing from the concept of the premise of the invention, some changes and improvements can also be made, these belong to the present invention
Protection domain.
Claims (10)
- A kind of 1. method of wet method carbide slag screening removal of impurities, it is characterised in that comprise the following steps：(1) settle：The wet method carbide slag slurries that solid content is 8~12% are transported to settling tank, sedimentation separation ferrosilicon and carbon granule etc. Impurity, obtain the material that particle diameter is less than 1mm；(2) vibratory sieve just separates：Material isolated in above-mentioned steps (1) is sieved at least through No. 2 vibratory sieves, institute The mesh number for stating vibratory sieve is respectively 20 mesh and 100 mesh, screens out big that particle diameter is more than 0.15mm more than 0.85mm and particle diameter respectively Grain impurity；(3) ultrasonic activation sieve subdivision：The carbide slag slurries handled that will be sieved through above-mentioned steps (2) introduce single or multiple lift ultrasonic wave Vibratory sieve is sieved, and the sieve aperture of the ultrasonic activation sieve is 200~500 mesh, and the ultrasonic activation sieve is high frequency ultrasound Ripple vibratory sieve；(4) electromagnetism cleans：It is by the carbide slag slurries introducing magnetic field intensity that purification is sieved through ultrasonic activation in above-mentioned steps (3) 0.01~0.5T region, remove magnetisable material.
- 2. the method for wet method carbide slag screening removal of impurities as claimed in claim 1, it is characterised in that through step (4) magnetic impurity removing Carbide slag slurries afterwards enter centrifugation systems and press filteration system, the moisture content in carbide slag is separated with carbide slag.
- 3. the method for wet method carbide slag screening removal of impurities as claimed in claim 1 or 2, it is characterised in that the ultrasonic activation Ultrasonic Netcom's device is provided with sieve, ultrasonic Netcom's device is provided with clear net transducer.
- 4. the method for wet method carbide slag screening removal of impurities as claimed in claim 1 or 2, it is characterised in that at step (2) sieving The carbide slag slurries of reason are stored in the fluid reservoir provided with agitating device.
- 5. the method for wet method carbide slag screening removal of impurities as claimed in claim 3, it is characterised in that handled through step (2) sieving Carbide slag slurries be stored in the fluid reservoir provided with agitating device.
- 6. the method for wet method carbide slag screening removal of impurities as claimed in claim 1 or 2, it is characterised in that surpass in the step (3) The sieve aperture of acoustic vibration sieve is 300~400 mesh.
- 7. the method for wet method carbide slag screening removal of impurities as claimed in claim 1 or 2, it is characterised in that selected in the step (3) The combination of screens for selecting different meshes is sieved.
- 8. the method for wet method carbide slag screening removal of impurities as claimed in claim 3, it is characterised in that selected in the step (3) The combination of screens of different meshes is sieved.
- 9. the method for wet method carbide slag screening removal of impurities as claimed in claim 4, it is characterised in that selected in the step (3) The combination of screens of different meshes is sieved.
- 10. the method for wet method carbide slag screening removal of impurities as claimed in claim 6, it is characterised in that selected in the step (3) The combination of screens of different meshes is sieved.
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| CN115055275A (en) * | 2022-06-15 | 2022-09-16 | 包头地平线环保科技有限公司 | Carbide slag does not have useless comprehensive utilization preparation system |
| CN115156240A (en) * | 2022-07-22 | 2022-10-11 | 广东同创科鑫环保有限公司 | Method for resource utilization of desulfurized fly ash |
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