CN1844006A - Apparatus for conducting stack gas desulfurization with limestone grout tank arranged in lower position and method thereof - Google Patents
Apparatus for conducting stack gas desulfurization with limestone grout tank arranged in lower position and method thereof Download PDFInfo
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- CN1844006A CN1844006A CN 200610200289 CN200610200289A CN1844006A CN 1844006 A CN1844006 A CN 1844006A CN 200610200289 CN200610200289 CN 200610200289 CN 200610200289 A CN200610200289 A CN 200610200289A CN 1844006 A CN1844006 A CN 1844006A
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- 239000006028 limestone Substances 0.000 title claims abstract description 146
- 235000019738 Limestone Nutrition 0.000 title claims abstract description 141
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 20
- 230000023556 desulfurization Effects 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000011440 grout Substances 0.000 title claims description 7
- 239000002002 slurry Substances 0.000 claims abstract description 145
- 239000007788 liquid Substances 0.000 claims abstract description 37
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000003546 flue gas Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 239000002245 particle Substances 0.000 claims description 22
- 238000002360 preparation method Methods 0.000 claims description 20
- 239000000843 powder Substances 0.000 claims description 12
- 238000000227 grinding Methods 0.000 claims description 10
- 238000007873 sieving Methods 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 8
- 238000010992 reflux Methods 0.000 claims description 7
- 239000004568 cement Substances 0.000 claims description 5
- 230000002950 deficient Effects 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 5
- 238000011068 loading method Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000004567 concrete Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 2
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 2
- 239000011152 fibreglass Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000004571 lime Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000010440 gypsum Substances 0.000 description 5
- 229910052602 gypsum Inorganic materials 0.000 description 5
- 238000004537 pulping Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
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Abstract
The invention relates to a preparing apparatus of limestone slurry in a low place in flue gas desulfurization process and the method, a scale feeder and a wet ball mill setted on the groud, a limestone slurry pond setted under ground, the exit end of recycle liquid pump connected with a hydroclone located above the mill, the bottom outlet of the hydroclone connected with inlet of the mill by conduits, the overflow end connected with a limestone slurry storage bin. The bottoms of the storage bin Connected with delivery pipes, and connected with two-level the hydroclone by two-level circulating pump, bottom outlet of two-level hydroclone connected with inlet of the mill with conduits, overflow end of two-level hydroclone connected with two-level limestone slurry storage bin. The invention reduces cost of capital investment and equipment material, and is suitable to flue gas desulfurization project of heat power plant.
Description
(1), technical field
The present invention relates to lime stone slurry preparation facilities and method thereof in the process for flue gas desulfurization by limestone/lime-gypsum wet technology of fuel-burning power plant.
(2), background technology
Power station and industrial boiler adopt fossil oil usually, such as coal and oil.Because these fossil oils generally contain the composition of sulphur, therefore, in combustion processes, can produce objectionable impuritiess such as sulfurous gas.The limestone-gypsum wet flue gas desulfurizer is widely used in the large-sized station boiler, is used for removing the sulfurous gas of boiler smoke.The limestone-gypsum wet flue gas desulfurizer needs lime stone slurry to absorb sulfur in smoke as absorption agent.Lime stone slurry is mixed by the limestone powder of certain particle size and water, so the preparation of limestone powder is the most important operation of slurry preparation.Usually, two kinds of systems are arranged, dry type pulping system and wet type pulping system at mine and field of metallurgy ore powder and slurry preparation thereof.
The technical process of conventional wet type pulping system is: Wingdale is through after the preliminary fragmentation, be stored in the high-order Wingdale storehouse of arranging, through the belt feeder of bottom, Wingdale storehouse Wingdale is sent in the wet-type ball mill of below, Wingdale storehouse and added water mill system, the lime stone slurry that comes out from grinding machine enters and is arranged on ground lime stone slurry case, by horizontal lime stone slurry recycle pump slurries are delivered to one-level limestone slurry liquid swirler, lime stone slurry is carried out preliminary screening, the coarse grained slurries that mainly contain of swirler bottom are got back to grinding machine and are ground, the slurries on swirler top are collected secondary slurries circulating box, being pumped into secondary limestone slurry liquid swirler by the horizontal loop slurry of secondary separates, the bottom slurries are got back to grinding machine, overflow slurry stores to Wingdale product slurry case, participates in desulphurization reaction by being pumped into the absorption tower.
The conventional apparatus floor space is big, and working efficiency remains further to be improved.Because the feasible slurries of discharging from grinding machine of the characteristics of wet mill are without any power, can only pass through gravity, flow automatically to the lime stone slurry case of low level, this must high-orderly arrange heavy, huge grinding machine, this causes the height of relevant device such as Wingdale storehouse, whole buildings all must improve, and has greatly increased civilwork engineering quantity and construction costs.
(3), summary of the invention
The present invention proposes a kind of improved apparatus for conducting stack gas desulfurization with limestone grout tank arranged in lower position and method thereof, the problem that solve to reduce civilwork engineering quantity and construction costs, reduction Master Cost, reduces occupation area of equipment, increases work efficiency.
Technical scheme of the present invention: this apparatus for conducting stack gas desulfurization with limestone grout tank arranged in lower position, by scale feeder, wet-type ball mill, the limestone slurry liquid pool, limestone slurry liquid pool recycle pump, hydrocyclone and lime stone slurry bin are in series, it is characterized in that: scale feeder and wet-type ball mill are located on the ground, the limestone slurry liquid pool is arranged on below ground, Wingdale recycle slurry liquid pump is a submerged pump, the slurries exit end that pumps from Wingdale recycle slurry liquid pump is connected with the hydrocyclone that is positioned at the wet-type ball mill top, the underflow outlet of its hydrocyclone is communicated with the feeding mouth of wet-type ball mill by pipeline, and the overflow port of hydrocyclone is communicated with the lime stone slurry bin.
Above-mentioned lime stone slurry bin bottom connects transfer lime, connect II level hydrocyclone through II level recycle pump, the underflow outlet of II level hydrocyclone is communicated with the feeding mouth of wet-type ball mill by pipeline, and the overflow port of II level hydrocyclone is communicated with II level lime stone slurry bin.
Above-mentioned lime stone slurry tank main body material is impregnating material such as concrete, glass inner-lining scale or glass reinforced plastic.
Flue gas desulfurization technique low level of the present invention is arranged the limestone slurry liquid and preparation method thereof, it is characterized in that processing step is:
(1), at first by the scale feeder feed, limestone block is delivered into quantitatively is located at ground wet-type ball mill;
(2), add quantitative water simultaneously, water and limestone block mixture are broken in wet-type ball mill, grind, stir and form lime stone slurry at wet-type ball mill inlet;
(3), lime stone slurry enters the limestone slurry liquid pool that is positioned at the wet-type ball mill below by gravity flow;
(4), then pass through the lime stone slurry recycle pump, lime stone slurry is promoted to the hydrocyclone that is arranged in the wet-type ball mill top carries out cyclonic separation, wherein the underflow than the coarse grain footpath returns wet-type ball mill through the hydrocyclone end opening;
(5), lime stone slurry with less, qualified particle diameter and concentration enters the lime stone slurry bin by overflow port and directly stores, and agitator is set in the case.The lime stone slurry concentration 20-24% of above-mentioned preparation, the limestone powder particle diameter is less than 63 μ m, and sieving rate is more than 90%.
The lime stone slurry that enters greater particle size in the lime stone slurry bin is through II level recycle pump, enter II level hydrocyclone and carry out the secondary cyclonic separation, the underflow of II level hydrocyclone turns back to and carries out once more broken and grinding in the wet-type ball mill, and the overflow port of II level hydrocyclone is communicated with II level lime stone slurry bin.The lime stone slurry concentration 20-24% of preparation, the limestone powder particle diameter is less than 31 μ m, and sieving rate is more than 90%.
In lime stone slurry, the ratio of water and Wingdale add-on, promptly water cement ratio is: 1: 3～1: 4.
After separating through hydrocyclone, need reground defective slurries amount that refluxes, i.e. the ratio of underflow amount and the qualified slurries amount of generation, the multiplying power that promptly refluxes is 3.5.
The weir loading of above-mentioned hydrocyclone is 40%, operating temperature 25-35 ℃.
This invention wet-type ball mill-lime stone pulping system has all been carried out best configuration to equipment selection, process-oriented layout, water cement ratio, backflow multiplying power, weir loading, operating temperature, steel ball ratio.The present invention utilizes wet-type ball mill that block limestone material is ground, employing is arranged on subsurface Wingdale recycle slurry liquid pool, replace conventional ground lime stone slurry case, Wingdale recycle slurry liquid pump adopts submerged pump, the lime stone slurry that separates qualified particle diameter then with hydrocyclone, the underproof Wingdale of particle diameter returns wet-type ball mill to be continued to grind, total system adopts closed cycle, limestone block can be ground into the lime stone slurry of qualified fineness, whole process is a physical process, and no chemical reaction takes place.Compare with conventional art and to have following effect: the occupied ground area is less, and the engineering overall cost is lower.Wingdale recycle slurry liquid pool is arranged on subsurface, adopt concrete structure, Wingdale recycle slurry liquid pump adopts submerged pump, reduced the height of foundation of wet mill on the one hand, the height of Wingdale material inlet decreases, thereby reduce the whole height that grinds workshop buildings and Wingdale warehouse, reduced the infrastructure investment of system; With the ground loop slurry case of underground concrete recycle slurry liquid pool replacement carbon steel line with rubber, also reduced the expense of equipment and materials in addition; This system running environment is good, has both guaranteed that the lime stone slurry finished product satisfies the requirement that conventional wet type grinds system, can greatly reduce the cost that grinds systems engineering again.Be applicable to the limestone slurry liquid preparing system of fuel-burning power plant process for flue gas desulfurization by limestone/lime-gypsum wet technology.
(4), description of drawings
Fig. 1 is the structural representation of the embodiment of the invention one I level recirculation preparation technology and device;
Fig. 2 is the structural representation of the embodiment of the invention two II level recirculation preparation technologies and device.
1-scale feeder, 2-wet-type ball mill, 3-limestone slurry liquid pool, 4-lime stone slurry recycle pump, 5-hydrocyclone, 6-lime stone slurry circulating box, 7-II level recycle pump, 8-II level hydrocyclone, 9-lime stone slurry bin.
(5), embodiment
Embodiment one is referring to Fig. 1: wet-type ball mill lime stone pulping system of the present invention can be divided into I level recirculation system and II level recirculation system, to satisfy the needs of different-grain diameter slurries.The Wingdale that comes from the mine is fractured into the above limestone block of 20mm usually.The limestone particle size that the limestone-gypsum wet flue gas desulfurizer needs must satisfy the requirement of fineness less than 63 μ m, sieving rate 90%, and these limestone powders of while also must be modulated into uniform slurries and just can be added in the flue gas desulfurization (FGD) unit.When limestone particle size only needs fineness less than the requiring of 63 μ m, sieving rate 90%, adopt I level recirculation preparation technology and device shown in Figure 1.
In limestone slurry liquid preparing system of the present invention, by scale feeder 1, limestone block is delivered into wet-type ball mill 2 quantitatively, adds quantitative water simultaneously at the wet-type ball mill inlet.Water and limestone block mixture are broken in wet-type ball mill, grind, stir and form lime stone slurry, and in these lime stone slurries, a part of limestone granularity is qualified, and another part limestone granularity is defective.These lime stone slurries enter lime stone slurry circulatory pool 3 by gravity flow, then by vertical lime stone slurry recycle pump 4, lime stone slurry is sent in the hydrocyclone 5, the effect of hydrocyclone 5 is to utilize density difference that the limestone powder of different-grain diameter is separated, lime stone slurry with less, qualified particle diameter and concentration enters lime stone slurry circulating box 6 by overflow and directly stores, or carries out thinner separation; The underflow of lime stone slurry bigger, off grade size by hydrocyclone 5 turns back to and carries out once more broken in the wet-type ball mill and grind.In order to prevent the slurries deposition, in the lime stone slurry circulating box 6 agitator must be set.
Embodiment two is referring to Fig. 2: when limestone particle size needs fineness less than the requiring of 31 μ m, sieving rate 90%, generally adopt II level recirculation preparation technology and device shown in Figure 2.II level recirculation system is on the basis of I level recirculation system product, carries out a hydrocyclone again and separates, and circulation separates through the II level, and can obtain limestone particle size needs the slurries of fineness less than 31 μ m, sieving rate 90%.
At first, dig a limestone slurry liquid pool at underground cutter and replace lime stone slurry case in the past, the second, the lime stone slurry recycle pump adopts the pattern of submerged pump, and the pump housing of submerged pump is vertical with impeller to be stretched in the limestone slurry liquid pool.This be because, below zero rice, arrange conventional water pump, need to dig pump hole and corresponding unexpected water exhaust system, do not had by water logging to prevent the water pump, this causes the quantities excavated very big, and the employing submerged pump, then make limestone slurry liquid pool and water pump place a pond, reduced occupation of land, and make that operation is safer.The limestone slurry liquid pool can be arranged in below zero rice like this, thereby reduces the requirement that goes out open height to the Wingdale grinding machine.The lime stone slurry that enters greater particle size in the lime stone slurry bin 6 is through II level recycle pump 7, enter II level hydrocyclone 8 and carry out the secondary cyclonic separation, the underflow of II level hydrocyclone turns back to and carries out once more broken and grinding in the wet-type ball mill 2, and the overflow port of II level hydrocyclone is communicated with II level lime stone slurry bin 9.
Processing step of the present invention is:
(1), the scale feeder feed, limestone block is delivered into wet-type ball mill quantitatively;
(2), add quantitative water simultaneously, water and limestone block mixture are broken in wet-type ball mill, grind, stir and form lime stone slurry at wet-type ball mill inlet;
(3), lime stone slurry enters by gravity flow and is arranged on subterranean limestone slurry liquid pool;
(4), then pass through vertical lime stone slurry recirculating pump, lime stone slurry is sent in the hydrocyclone, utilize density difference that the limestone powder of different-grain diameter is carried out cyclonic separation;
(5), lime stone slurry with less, qualified particle diameter and concentration enters the lime stone slurry bin by overflow and directly stores, and agitator is set in the case.
The lime stone slurry concentration 20-24% of preparation, the limestone powder particle diameter is less than 63 μ m, and sieving rate is more than 90%.
The lime stone slurry that enters greater particle size in the lime stone slurry bin carries out the secondary cyclonic separation by II level hydrocyclone, and the underflow of II level hydrocyclone turns back to and carries out once more broken and grinding in the wet-type ball mill.
The lime stone slurry concentration 20-24% of preparation, the limestone powder particle diameter is less than 31 μ m, and sieving rate is more than 90%.
The ratio of water and Wingdale add-on, promptly water cement ratio is: 1: 3～1: 4.
After separating through hydrocyclone, need reground defective slurries amount that refluxes, i.e. the ratio of underflow amount and the qualified slurries amount of generation, the multiplying power that promptly refluxes is 3.5.The weir loading of hydrocyclone is 40%, operating temperature 25-35 ℃.
Below be one embodiment of the present of invention.Limestone slurry liquid pool recycle pump adopts vertical pump.The wet-type ball mill gauge size is MQ2280, diameter 2.4m tube length 7m.In limestone slurry liquid preparing system of the present invention, the parameter setting of wet-type ball mill is as follows: rotating speed is 17-30 rev/min, plot ratio 28%; 25mm steel ball ratio: 20%; 35mm steel ball ratio: 20%; 45mm steel ball ratio: 30%; 55mm steel ball ratio: 15%; 65mm steel ball ratio: 15%.
The ratio of water and Wingdale add-on, i.e. water cement ratio: 1: 3～1: 4.Backflow multiplying power: 3.5.After the backflow multiplying power is meant and separates through swirler, the ratio of underflow (needing reground defective slurries amount that refluxes) and the qualified slurries amount that produces.
Two stages of hydrocyclones all is weir loadings 42%, about 32 ℃ of operating temperatures.Total system is exerted oneself and is the 14t/h lime stone slurry.The system stability 14t/h that exerts oneself, concentration of slurry 25%.
The limestone particle size analytical results is in the slurries:
Rank accumulative total % classification %
＜21μm 84 84
20～31μm 96 12
31～43μm 99.5 3.5
＞43μm 100 0.5
The principle of work of above-mentioned two kinds of closed circuit circulatory systems is the same, but the fineness of finished product grain size is different.
Claims (10)
1. apparatus for conducting stack gas desulfurization with limestone grout tank arranged in lower position, by scale feeder, wet-type ball mill, the limestone slurry liquid pool, limestone slurry liquid pool recycle pump, hydrocyclone and lime stone slurry bin are in series, it is characterized in that: scale feeder and wet-type ball mill are located on the ground, the limestone slurry liquid pool is arranged on below ground, Wingdale recycle slurry liquid pump is a submerged pump, the slurries exit end that pumps from Wingdale recycle slurry liquid pump is connected with the hydrocyclone that is positioned at the wet-type ball mill top, the underflow outlet of its hydrocyclone is communicated with the feeding mouth of wet-type ball mill by pipeline, and the overflow port of hydrocyclone is communicated with the lime stone slurry bin.
2. apparatus for conducting stack gas desulfurization with limestone grout tank arranged in lower position according to claim 1, it is characterized in that: lime stone slurry bin bottom connects transfer lime, connect II level hydrocyclone through II level recycle pump, the underflow outlet of II level hydrocyclone is communicated with the feeding mouth of wet-type ball mill by pipeline, and the overflow port of II level hydrocyclone is communicated with II level lime stone slurry bin.
3. apparatus for conducting stack gas desulfurization with limestone grout tank arranged in lower position according to claim 1 is characterized in that: above-mentioned lime stone slurry tank main body material is impregnating material such as concrete, glass inner-lining scale or glass reinforced plastic.
4. a flue gas desulfurization technique low level is arranged the limestone slurry liquid and preparation method thereof, it is characterized in that processing step is:
(1), at first by the scale feeder feed, limestone block is delivered into quantitatively is located at ground wet-type ball mill;
(2), add quantitative water simultaneously, water and limestone block mixture are broken in wet-type ball mill, grind, stir and form lime stone slurry at wet-type ball mill inlet;
(3), lime stone slurry enters the limestone slurry liquid pool that is positioned at the wet-type ball mill below by gravity flow;
(4), then pass through the lime stone slurry recycle pump, lime stone slurry is promoted to the hydrocyclone that is arranged in the wet-type ball mill top carries out cyclonic separation, wherein the underflow than the coarse grain footpath returns wet-type ball mill through the hydrocyclone end opening;
(5), lime stone slurry with less, qualified particle diameter and concentration enters the lime stone slurry bin by overflow port and directly stores, and agitator is set in the case.
5. flue gas desulfurization technique low level according to claim 4 is arranged the limestone slurry liquid and preparation method thereof, it is characterized in that: the lime stone slurry concentration 20-24% of step (5) preparation, and the limestone powder particle diameter is less than 63 μ m, and sieving rate is more than 90%.
6. flue gas desulfurization technique low level according to claim 4 is arranged the limestone slurry liquid and preparation method thereof, it is characterized in that: in step (5), the lime stone slurry that enters greater particle size in the lime stone slurry bin is through II level recycle pump, enter II level hydrocyclone and carry out the secondary cyclonic separation, the underflow of II level hydrocyclone turns back to and carries out once more broken and grinding in the wet-type ball mill, and the overflow port of II level hydrocyclone is communicated with II level lime stone slurry bin.
7. flue gas desulfurization technique low level according to claim 6 is arranged each method of lime stone slurry system, it is characterized in that: the lime stone slurry concentration 20-24% in the above-mentioned II level lime stone slurry bin, the limestone powder particle diameter is less than 31 μ m, and sieving rate is more than 90%.
8. arrange the limestone slurry liquid and preparation method thereofs according to claim 4 or 6 described flue gas desulfurization technique low levels, it is characterized in that: the ratio of the water in the lime stone slurry and Wingdale add-on, promptly water cement ratio is: 1: 3～1: 4.
9. arrange the limestone slurry liquid and preparation method thereof according to claim 4 or 6 described flue gas desulfurization technique low levels, it is characterized in that: after separating through hydrocyclone, reground defective slurries amount that need to reflux, i.e. the ratio of underflow amount and the qualified slurries amount of generation, the multiplying power that promptly refluxes is 3.5.
10. arrange the limestone slurry liquid and preparation method thereof according to claim 4 or 6 described flue gas desulfurization technique low levels, it is characterized in that: the weir loading of hydrocyclone is 40%, operating temperature 25-35 ℃.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139245A (en) * | 2010-12-15 | 2011-08-03 | 广东省大宝山矿业有限公司 | Lime milk additive preparation system |
| CN102276169A (en) * | 2011-04-10 | 2011-12-14 | 江苏揽山环境科技有限公司 | Wet digestion apparatus for wide size range lime blocks |
| CN101767055B (en) * | 2008-12-30 | 2013-07-17 | 中国恩菲工程技术有限公司 | Chromium selecting device for lateritic ore |
| CN105510180A (en) * | 2015-11-25 | 2016-04-20 | 中国神华能源股份有限公司 | A method of measuring density of limestone slurry |
| CN106000561A (en) * | 2016-07-01 | 2016-10-12 | 大唐环境产业集团股份有限公司 | Mill pulp circulating system |
| CN106311051A (en) * | 2016-08-31 | 2017-01-11 | 无锡东恒新能源科技有限公司 | System for premixing slurry with high solid content |
| CN113499724A (en) * | 2021-07-12 | 2021-10-15 | 翱华工程技术股份有限公司 | Carbide slag slurry manufacturing equipment, carbide slag slurry manufacturing method and carbide slag slurry |
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- 2006-03-30 CN CN 200610200289 patent/CN1844006A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767055B (en) * | 2008-12-30 | 2013-07-17 | 中国恩菲工程技术有限公司 | Chromium selecting device for lateritic ore |
| CN102139245A (en) * | 2010-12-15 | 2011-08-03 | 广东省大宝山矿业有限公司 | Lime milk additive preparation system |
| CN102276169A (en) * | 2011-04-10 | 2011-12-14 | 江苏揽山环境科技有限公司 | Wet digestion apparatus for wide size range lime blocks |
| CN102276169B (en) * | 2011-04-10 | 2013-03-06 | 江苏揽山环境科技有限公司 | Wet digestion apparatus for wide size range lime blocks |
| CN105510180A (en) * | 2015-11-25 | 2016-04-20 | 中国神华能源股份有限公司 | A method of measuring density of limestone slurry |
| CN106000561A (en) * | 2016-07-01 | 2016-10-12 | 大唐环境产业集团股份有限公司 | Mill pulp circulating system |
| CN106311051A (en) * | 2016-08-31 | 2017-01-11 | 无锡东恒新能源科技有限公司 | System for premixing slurry with high solid content |
| CN113499724A (en) * | 2021-07-12 | 2021-10-15 | 翱华工程技术股份有限公司 | Carbide slag slurry manufacturing equipment, carbide slag slurry manufacturing method and carbide slag slurry |
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