CN113772705A - Production system and production process for preparing calcium hydroxide by dewatering carbide slag - Google Patents
Production system and production process for preparing calcium hydroxide by dewatering carbide slag Download PDFInfo
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- CN113772705A CN113772705A CN202111330013.1A CN202111330013A CN113772705A CN 113772705 A CN113772705 A CN 113772705A CN 202111330013 A CN202111330013 A CN 202111330013A CN 113772705 A CN113772705 A CN 113772705A
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- discharge hole
- carbide slag
- bin
- calcium hydroxide
- lifter
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/02—Oxides or hydroxides
Abstract
The invention discloses a production system and a production process for preparing calcium hydroxide by dehydrating carbide slag, and the production system comprises a hopper, a hopper II, a composite crusher, an aging bin, a powder concentrator, a superior product finished product bin, a slag bin, a hopper III, a proportioning bin, a belt conveyor II and a flour mill, wherein a discharge port of the hopper is connected with a belt scale I; the invention solves the problem of large heat productivity, utilizes a small amount of calcium oxide and carbide slag for treatment, and hydrolyzes the calcium oxide to prepare the calcium hydroxide while drying the carbide slag, thereby making the best use of things and not wasting resources.
Description
Technical Field
The invention relates to the technical field of calcium hydroxide preparation, in particular to a production system for preparing calcium hydroxide by dehydrating carbide slag and a production process thereof.
Background
Acetylene sludge, which is the waste residue obtained by hydrolyzing calcium carbide to obtain acetylene gas and taking calcium hydroxide as a main component. Calcium hydroxide is a white powdery solid. Chemical formula Ca (OH)2Commonly known as slaked lime and slaked lime, and the aqueous solution is known as clear limewater. Calcium hydroxide has the general property of being a strong base. Calcium hydroxide is a strong binary base, but only slightly soluble in water. The calcium hydroxide is widely applied to industries such as building materials, power plant desulfurization and the like.
In some chemical industry, after the carbide is reacted to prepare acetylene gas, a large amount of storage yards are occupied as tailings by residual carbide slag, the calcium carbide slag needs to be processed in time, huge land and financial resources need to be consumed, the residual carbide slag also seriously pollutes the environment and endangers human health, a new process is urgently waited to process, the traditional calcium hydroxide preparation method is low in system operation efficiency, heat is dissipated to waste water resources, the preparation cost is high, the new process is urgently waited to replace, the requirements in actual use cannot be met, and therefore the technology which can be improved is urgently needed on the market, and the problems are solved.
Disclosure of Invention
The invention aims to overcome the technical problems in the prior art, provides a calcium hydroxide production system and a calcium hydroxide production process by dewatering carbide slag, reduces the production cost, solves the problem of high heat productivity, utilizes a small amount of calcium oxide and carbide slag for treatment, hydrolyzes the calcium oxide while drying the carbide slag to prepare calcium hydroxide, utilizes different ingredients to adjust the calcium content of the calcium hydroxide with different purposes, makes the best use of things, does not waste resources, and can effectively solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a production system for preparing calcium hydroxide by dewatering carbide slag comprises a hopper, a hopper II, a composite crusher, an aging bin, a powder concentrator, a high-grade product finished product bin, a slag bin, a hopper III, a proportioning bin, a belt conveyor II and a flour mill, wherein a discharge port of the hopper is connected with a belt scale I, a discharge port of the hopper II is connected with a belt scale II, a discharge port of the composite crusher is connected with a feed port of a mixer, a discharge port of the mixer is connected with a lifter I, a discharge port of the lifter I is connected with a feed port of the aging bin, a discharge port of the aging bin is connected with a belt conveyor I, a discharge port of the belt conveyor I is connected with a lifter II, a discharge port of the lifter II is connected with a feed port of the powder concentrator, a first discharge port of the powder concentrator is connected with a lifter III, a discharge port of the lifter III is connected with a feed port of the high-grade product bin, a second discharge port of the powder concentrator is connected with a feed port of a lifter IV, and a discharge port of the lifter IV is connected with a feed port of the slag bin, a discharge hole of the hopper III is connected with a feed hole of the hoister IV, and a discharge hole of the hoister IV is connected with a feed hole of the proportioning bin;
the discharge hole of the slag bin is connected with a feed inlet of a belt weigher III, the discharge hole of the proportioning bin is connected with a feed inlet of a belt weigher IV, a discharge hole of the belt weigher III and a discharge hole of the belt weigher IV are both connected with a feed inlet of a belt conveyor II, and a discharge hole of the belt conveyor II is connected with a feed inlet of a flour mill.
Furthermore, the discharge hole of the belt scale I and the discharge hole of the belt scale II are in flexible connection with the feed inlet of the composite crusher.
Further, still include substandard product storehouse, the milling machine discharge gate is connected with lifting machine V, and lifting machine V's discharge gate is connected with substandard product storehouse feed inlet.
A production process for preparing calcium hydroxide by dewatering carbide slag comprises the following steps:
step 1, continuously and uniformly feeding carbide slag and calcium oxide into a composite crusher according to a designed proportion by a belt scale I and a belt scale II;
step 4, the aging bin fully reacts residual calcium oxide coated in the calcium hydroxide with the moisture of the carbide slag;
and 6, uniformly feeding the dried carbide slag and the ingredients selected by the powder concentrator into a grinding machine according to different proportions by using a belt scale III and a hopper III, producing defective powder with different calcium contents, and conveying the defective powder into a defective finished product bin for storage by using a lifting machine V.
Compared with the prior art, the invention has the beneficial effects that:
1. the aim of drying the carbide slag is achieved by absorbing the moisture of the carbide slag through calcium oxide, the consumption of the calcium hydroxide and the calcium oxide is reduced by 60 percent compared with the traditional method for preparing the calcium hydroxide and the calcium oxide by hydrolyzing the calcium oxide, and the production cost is reduced by more than 40 percent;
2. the calcium oxide absorbs the moisture of the carbide slag to achieve the aim of drying the carbide slag, and compared with the traditional method for preparing calcium hydroxide by hydrolyzing calcium oxide, the heating value of the system is reduced by 60 percent, and the water consumption is reduced by 100 percent;
3. the calcium carbide tailings accumulated in the chemical industry are digested through the process, the environmental protection cost and the production cost of enterprises are reduced, the problem of large heat productivity is solved, a small amount of calcium oxide and the calcium carbide slag are used for processing, the calcium oxide is hydrolyzed while the moisture of the calcium carbide slag is dried to prepare calcium hydroxide, the calcium content of the calcium hydroxide with different purposes is adjusted through different ingredients, the best use of the materials is achieved, and resources are not wasted.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
In the figure: 1 hopper, 2 belt weighers I, 3 hopper II, 4 belt weighers II, 5 composite crusher, 6 stirrer, 7 hoister I, 8 aging bin, 9 belt conveyor I, 10 hoister II, 11 powder concentrator, 12 hoister III, 13 excellent finished product bin, 14 hoister IV, 15 slag bin, 16 belt weigher III, 17 hopper III, 18 batching bin, 19 belt weigher IV, 20 belt conveyor II, 21 pulverizer, 22 hoister V, 23 defective finished product bin.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a calcium hydrate production system is prepared in carbide slag dehydration, includes hopper 1, hopper II 3, composite crusher 5, ageing storehouse 8, selection powder machine 11, superior product finished product storehouse 13, sediment storehouse 15, hopper III 17, proportioning bins 18, II 20 and the milling machine 21 of belt feeder, its characterized in that: the discharge hole of the hopper 1 is connected with a belt scale I2, the discharge hole of the hopper II 3 is connected with a belt scale II 4, the discharge hole of the belt scale I2 and the discharge hole of the belt scale II 4 are in flexible connection with a feed inlet of a composite crusher 5, the discharge hole of the composite crusher 5 is connected with a feed inlet of a stirrer 6, the discharge hole of the stirrer 6 is connected with a lifter I7, the discharge hole of the lifter I7 is connected with a feed inlet of an aging bin 8, the discharge hole of the aging bin 8 is connected with a belt conveyor I9, the discharge hole of the belt conveyor I9 is connected with a lifter II 10, the discharge hole of the lifter II 10 is connected with a feed inlet of a powder concentrator 11, a first discharge hole of the powder concentrator 11 is connected with a lifter III 12, the discharge hole of the lifter III 12 is connected with a feed inlet of a high-grade product bin 13, a second discharge hole of the powder concentrator 11 is connected with a feed inlet of a lifter IV 14, and the discharge hole of the lifter IV 14 is connected with a feed inlet of a slag bin 15, the discharge hole of a hopper III 17 is connected with a feed hole of a lifter IV 14, the discharge hole of the lifter IV 14 is connected with a feed hole of a proportioning bin 18, carbide slag selected by a powder concentrator 11 is conveyed into a slag bin 15 through the lifter IV 14, the slag bin 15 is used for storing carbide slag, calcium oxide in the hopper III 17 is conveyed into the proportioning bin 18 through the lifter IV 14, the proportioning bin 15 is used for storing calcium oxide, the discharge hole of the slag bin 15 is connected with a feed hole of a belt scale III 16, the discharge hole of the proportioning bin 18 is connected with a feed hole of a belt scale IV 19, the discharge hole of the belt scale III 16 and the discharge hole of the belt scale IV 19 are both connected with a feed hole of a belt conveyor II 20, the discharge hole of the belt conveyor II 20 is connected with a feed hole of a flour mill 21, the invention also comprises a defective product bin 23, the discharge hole of the flour mill 21 is connected with a lifter V22, and the discharge hole of the lifter V22 is connected with the feed hole of the defective product bin 23, the invention solves the problem of large heat productivity, a small amount of calcium oxide and carbide slag are used for processing, the calcium oxide is hydrolyzed to prepare calcium hydroxide while the moisture of the carbide slag is dried, and different ingredients are used for adjusting the calcium content of the calcium hydroxide with different purposes, so that the best use is achieved, and resources are not wasted.
A production process for preparing calcium hydroxide by dewatering carbide slag comprises the following steps:
step 1, continuously and uniformly feeding carbide slag and calcium oxide into a composite crusher 5 by a belt scale I2 and a belt scale II 4 according to a designed proportion;
step 4, the aging bin 8 fully reacts residual calcium oxide coated in the calcium hydroxide with the moisture of the carbide slag;
and step 6, the belt scale III 16 and the hopper III 17 can uniformly feed the dry carbide slag and the ingredients selected by the powder concentrator into the grinding mill 21 according to different proportions, produce defective powder with different calcium contents, and feed the defective powder into a defective finished product bin 23 through the elevator V22 for storage.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a calcium hydrate production system is prepared in carbide slag dehydration, includes hopper (1), hopper II (3), combined crusher (5), ageing storehouse (8), selection powder machine (11), superior product finished product storehouse (13), sediment storehouse (15), hopper III (17), proportioning bins (18), belt feeder II (20) and milling machine (21), its characterized in that: the discharge hole of the hopper (1) is connected with a belt scale I (2), the discharge hole of the hopper II (3) is connected with a belt scale II (4), the discharge hole of the composite crusher (5) is connected with the feed hole of a stirrer (6), the discharge hole of the stirrer (6) is connected with a lifter I (7), the discharge hole of the lifter I (7) is connected with the feed hole of an aging bin (8), the discharge hole of the aging bin (8) is connected with a belt conveyor I (9), the discharge hole of the belt conveyor I (9) is connected with a lifter II (10), the discharge hole of the lifter II (10) is connected with the feed hole of a powder concentrator (11), the first discharge hole of the powder concentrator (11) is connected with a lifter III (12), the discharge hole of the lifter III (12) is connected with the feed hole of a high-grade product bin (13), the second discharge hole of the powder concentrator (11) is connected with the feed hole of the lifter IV (14), and the discharge hole of the lifter IV (14) is connected with the feed hole of a slag bin (15), a discharge hole of the hopper III (17) is connected with a feed hole of the elevator IV (14), and a discharge hole of the elevator IV (14) is connected with a feed hole of the proportioning bin (18);
the discharge hole of the slag bin (15) is connected with a feed hole of a belt weigher III (16), the discharge hole of the proportioning bin (18) is connected with a feed hole of a belt weigher IV (19), the discharge hole of the belt weigher III (16) and the discharge hole of the belt weigher IV (19) are both connected with a feed hole of a belt conveyor II (20), and the discharge hole of the belt conveyor II (20) is connected with a feed hole of a flour mill (21).
2. The production system for preparing calcium hydroxide by dewatering carbide slag according to claim 1, wherein: the discharge port of the belt scale I (2) and the discharge port of the belt scale II (4) are in flexible connection with the feed port of the composite crusher (5).
3. The production system for preparing calcium hydroxide by dewatering carbide slag according to claim 2, characterized in that: still include substandard product storehouse (23), milling machine (21) discharge gate is connected with lifting machine V (22), and the discharge gate and the feed inlet in substandard product storehouse (23) of lifting machine V (22) are connected.
4. The production process of the calcium hydroxide production system by carbide slag dehydration according to claim 3, characterized in that: the method comprises the following steps:
step 1, continuously and uniformly feeding carbide slag and calcium oxide into a composite crusher (5) according to a designed proportion by a belt scale I (2) and a belt scale II (4);
step 2, fully mixing and crushing the carbide slag and the calcium oxide by using a composite crusher (5), and reducing the reaction time;
step 3, the stirrer (6) can separate part of calcium hydroxide coated on the surfaces of calcium oxide particles, so that the calcium oxide inside and the moisture of the carbide slag continue to react, and the calcium oxide and the moisture of the carbide slag are conveyed into an aging bin (8) through a lifter I (7);
step 4, the aging bin (8) fully reacts residual calcium oxide coated in the calcium hydroxide with the moisture of the carbide slag;
step 5, the powder concentrator (11) can sort the aged calcium hydroxide mixed powder, and separate the high-quality calcium hydroxide with the qualified fineness from the high-quality calcium hydroxide with the unqualified fineness to obtain a high-quality calcium hydroxide finished product;
and 6, uniformly feeding the dried carbide slag and the ingredients selected by the powder concentrator into a grinding machine (21) by using a belt scale III (16) and a hopper III (17) according to different proportions, producing defective powder with different calcium contents, and feeding the defective powder into a defective finished product bin (23) by using a lifting machine V (22) for storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111330013.1A CN113772705A (en) | 2021-11-11 | 2021-11-11 | Production system and production process for preparing calcium hydroxide by dewatering carbide slag |
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| CN202111330013.1A CN113772705A (en) | 2021-11-11 | 2021-11-11 | Production system and production process for preparing calcium hydroxide by dewatering carbide slag |
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Citations (11)
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| WO2012080565A1 (en) * | 2010-12-13 | 2012-06-21 | Fractivator Oy | Method and apparatus for the preparation of finely divided calcium hydroxide |
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| CN106220234A (en) * | 2016-08-03 | 2016-12-14 | 安徽阜阳富龙建筑材料有限责任公司 | A kind of high strenght flyash carbide slag air-entrained concrete building block and processing method thereof |
| CN107417230A (en) * | 2017-06-09 | 2017-12-01 | 中盐安徽红四方新型建材科技有限公司 | The production method and production equipment of steam-pressing brisk |
| CN108249465A (en) * | 2018-01-23 | 2018-07-06 | 辽宁邦加钙业有限公司 | The production equipment and its production technology of calcium hydroxide are produced using carbide slag |
| CN208022718U (en) * | 2018-01-23 | 2018-10-30 | 辽宁邦加钙业有限公司 | A kind of production equipment for producing calcium hydroxide using carbide slag |
| CN109336420A (en) * | 2018-12-13 | 2019-02-15 | 四川和临科技发展有限公司 | A kind of production method of calcium hydroxide |
| CN112125537A (en) * | 2020-09-28 | 2020-12-25 | 辽宁鑫钙环保科技有限公司 | Industrial preparation technology of calcium hydroxide |
| CN214360288U (en) * | 2021-01-21 | 2021-10-08 | 重庆鸿庆达产业有限公司 | Production line of calcium oxide and calcium hydroxide |
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2021
- 2021-11-11 CN CN202111330013.1A patent/CN113772705A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012080565A1 (en) * | 2010-12-13 | 2012-06-21 | Fractivator Oy | Method and apparatus for the preparation of finely divided calcium hydroxide |
| CN103880056A (en) * | 2014-02-26 | 2014-06-25 | 钟文庭 | Preparation method for preparing calcium hydroxide through carbide slag |
| CN104496204A (en) * | 2014-12-25 | 2015-04-08 | 岳俊峰 | Energy-saving high-performance dry-process calcium hydroxide production line |
| CN105669053A (en) * | 2016-04-15 | 2016-06-15 | 范洪喜 | Industrial grade calcium hydroxide production equipment and technology |
| CN106220234A (en) * | 2016-08-03 | 2016-12-14 | 安徽阜阳富龙建筑材料有限责任公司 | A kind of high strenght flyash carbide slag air-entrained concrete building block and processing method thereof |
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| CN108249465A (en) * | 2018-01-23 | 2018-07-06 | 辽宁邦加钙业有限公司 | The production equipment and its production technology of calcium hydroxide are produced using carbide slag |
| CN208022718U (en) * | 2018-01-23 | 2018-10-30 | 辽宁邦加钙业有限公司 | A kind of production equipment for producing calcium hydroxide using carbide slag |
| CN109336420A (en) * | 2018-12-13 | 2019-02-15 | 四川和临科技发展有限公司 | A kind of production method of calcium hydroxide |
| CN112125537A (en) * | 2020-09-28 | 2020-12-25 | 辽宁鑫钙环保科技有限公司 | Industrial preparation technology of calcium hydroxide |
| CN214360288U (en) * | 2021-01-21 | 2021-10-08 | 重庆鸿庆达产业有限公司 | Production line of calcium oxide and calcium hydroxide |
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Application publication date: 20211210 |