CN114523559B - Comprehensive utilization system of carbide slag - Google Patents
Comprehensive utilization system of carbide slag Download PDFInfo
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- CN114523559B CN114523559B CN202111607445.2A CN202111607445A CN114523559B CN 114523559 B CN114523559 B CN 114523559B CN 202111607445 A CN202111607445 A CN 202111607445A CN 114523559 B CN114523559 B CN 114523559B
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- stirring
- carbide slag
- slag
- slurry
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- 239000002893 slag Substances 0.000 title claims abstract description 123
- 238000003756 stirring Methods 0.000 claims abstract description 95
- 239000002002 slurry Substances 0.000 claims abstract description 60
- 238000001914 filtration Methods 0.000 claims abstract description 58
- 239000011449 brick Substances 0.000 claims abstract description 29
- 238000001035 drying Methods 0.000 claims abstract description 24
- 238000007664 blowing Methods 0.000 claims abstract description 19
- 238000003823 mortar mixing Methods 0.000 claims abstract description 16
- 239000004567 concrete Substances 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 239000004568 cement Substances 0.000 claims abstract description 7
- 238000000605 extraction Methods 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims abstract description 5
- 238000005086 pumping Methods 0.000 claims abstract description 5
- 239000004576 sand Substances 0.000 claims abstract description 4
- 239000004575 stone Substances 0.000 claims abstract description 4
- 239000002341 toxic gas Substances 0.000 claims abstract description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 30
- 239000007789 gas Substances 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 239000002912 waste gas Substances 0.000 abstract description 6
- 239000002351 wastewater Substances 0.000 abstract description 6
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 4
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 239000002910 solid waste Substances 0.000 abstract description 3
- 239000005997 Calcium carbide Substances 0.000 description 10
- 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 10
- 239000007788 liquid Substances 0.000 description 7
- 239000002994 raw material Substances 0.000 description 6
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 5
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 5
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 3
- 239000000920 calcium hydroxide Substances 0.000 description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 150000003568 thioethers Chemical class 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B15/00—General arrangement or layout of plant ; Industrial outlines or plant installations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/27—Filters with filtering elements which move during the filtering operation with rotary filtering surfaces, which are neither cylindrical nor planar, e.g. helical surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/0007—Pretreatment of the ingredients, e.g. by heating, sorting, grading, drying, disintegrating; Preventing generation of dust
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C9/00—General arrangement or layout of plant
- B28C9/02—General arrangement or layout of plant for producing mixtures of clay or cement with other materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses a comprehensive utilization system of carbide slag, wherein a carbide slag stirring module is used for stirring the carbide slag in a tailing pond; the conveying module is used for pumping the slag slurry from the carbide slag stirring module to the slag slurry filtering module; the slag slurry filtering module is used for filtering large-particle raw ore block impurities in the slag slurry; the mortar mixing module is used for mixing carbide slag slurry, sand stone and cement into concrete; the drying module is used for drying bricks which are convenient for the brick making module to prepare; the air extraction module is used for extracting air in the drying module into the air blowing module in the carbide slag stirring module; the blowing module is used for dispersing toxic gas generated in the drying module into bubbles to react with carbide slag slurry in the carbide slag stirring module. Through this application, can carry out recycle with carbide slurry, at the recovery in-process simultaneously, do not produce sulphide pollutant, also do not produce secondary waste water, waste gas, waste water and the solid waste in the slurry all obtain utilizing.
Description
Technical Field
The invention relates to the field of resource recovery, in particular to a comprehensive utilization system of carbide slag.
Background
The calcium carbide slag is waste slag taking calcium hydroxide as a main component after calcium carbide is hydrolyzed to obtain acetylene gas. Acetylene (C) 2 H 2 ) Is one of the important raw materials of basic organic synthesis industry, and uses calcium carbide (CaC) 2 ) The technology for producing acetylene by adding water (wet method) is simple and mature, and occupies a large proportion in China at present. More than 300 kg of acetylene gas can be generated by adding water into 1t of calcium carbide, and meanwhile, 10t of industrial waste liquid with the solid content of about 12% is generated, which is commonly called as calcium carbide slag slurry. The carbide slag can be used to replace limestone for producing cement, and to produce quick lime as calcium carbide raw material, chemical products, building materials and the likeAnd environmental control.
At present, in the process of producing acetylene, related enterprises generally transport carbide slag slurry raw materials to a slag yard (tailing pond) for stacking, because the carbide slag and percolate containing a certain amount of water are also strong alkaline and also contain toxic and harmful substances such as sulfides, phosphides and the like, the treatment cost is high, if the carbide slag slurry raw materials are recycled to be cement raw materials, the treatment such as filtration, drying and the like is needed, the subsequent environmental protection problem not only relates to water treatment, but also relates to sulfur-containing waste gas treatment, so that many enterprises do not calculate the resource utilization treatment on the carbide slag and can only stack, thus leading to the fact that the tailing pond is bigger and bigger, and once the dam is broken, the carbide slag slurry overflows, and the environment is polluted.
Disclosure of Invention
The invention aims to provide a comprehensive utilization system of carbide slag aiming at the defects of the prior art.
In order to achieve the above object, the present invention is achieved by the following technical scheme.
The comprehensive utilization system of the carbide slag comprises a carbide slag stirring module, a conveying module, a slag slurry filtering module, a mortar mixing module, a brick making module, a drying module, an air extracting module and an air blowing module;
the carbide slag stirring module is used for stirring carbide slag in the tailing pond, so that the precipitated carbide slag is mixed with water to form slag slurry, and the conveying module is convenient to pump the slag slurry;
the conveying module is used for pumping the slag slurry from the carbide slag stirring module to the slag slurry filtering module;
the slag slurry filtering module is used for filtering large-particle raw ore block impurities in the slag slurry; the discharge port on the slag slurry filtering module is arranged at the top end of the mortar mixing module;
the mortar mixing module is used for mixing carbide slag slurry, sand stone and cement into concrete, so that the brick making module is convenient to prepare bricks;
the convenient brick making module is used for preparing concrete formed by mixing the mortar mixing modules into bricks;
the drying module is used for drying bricks which are convenient for the brick making module to prepare;
the air extraction module is used for extracting air in the drying module into the air blowing module in the carbide slag stirring module;
the blowing module is used for dispersing toxic gas generated in the drying module into bubbles to react with carbide slag slurry in the carbide slag stirring module.
Further, carbide slag stirring module includes stirring pond, servo motor, stirring rake, sulfur dioxide detector, the stirring pond is for sealing the setting, the inboard top in stirring pond is provided with servo motor, be provided with the stirring rake on servo motor's the transmission shaft, the top in stirring pond is provided with the sulfur dioxide detector, the side in stirring pond bottom is provided with the air inlet respectively, advances the mud mouth, the bottom in stirring pond is provided with out the mud mouth, the top in stirring pond is provided with the gas outlet, be provided with the two-way valve on gas outlet, the gas inlet, the gas outlet passes through the pipe connection air inlet, the air inlet is connected to the air pumping module. The mud outlet is connected with the conveying module through a pipeline, and the mud inlet is connected with the calcium carbide furnace.
Furthermore, valves are arranged on the mud outlet, the mud inlet, the air inlet and the air outlet.
Further, the stirring paddle comprises two connecting rods, stirring rods and paddles, wherein the two connecting rods are vertically arranged at the bottom ends of transmission shafts of the servo motor, three stirring rods are vertically arranged on the connecting rods, the connecting rods and the stirring rods are in an abundant shape, the paddles are arranged at the bottom ends of the stirring rods, and the paddles are in an inverted triangle shape.
Further, the paddles and the stirring rod are obliquely arranged, and an included angle between the axis of the stirring rod and the central axis of the paddles is 20-30 degrees.
Further, sediment thick liquid filtration module includes filtration jar, filter, rotation motor, solenoid valve, rubber ring, the inboard top of filtration jar is provided with rotation motor, be provided with the filter on rotation motor's the transmission shaft, the cross-section of filter is the V font of falling, be provided with the rubber ring between the bottom of filter and the inner wall of filtration jar, the side of filtration jar is provided with the slag notch, the top of filtration jar is provided with the feed inlet, the feed inlet passes through the exit linkage of pipeline and transport module, the bottom of filtration jar is provided with the discharge gate, be provided with the solenoid valve on the discharge gate.
Further, the bottom of filter is provided with the baffle, be provided with the filtration pore on the filter.
Further, the module of blowing sets up at carbide slag stirring module, the module of blowing includes trunk line, branch pipeline, outlet duct, the one end and the air inlet intercommunication of trunk line, the bilateral symmetry of trunk line is provided with a plurality of branch pipelines, the both sides of branch pipeline are vertically provided with a plurality of outlet ducts, be provided with the gas outlet on the outlet duct.
The invention has the following effective effects: through the technical scheme of this application, can carry out recycle with carbide slag thick liquid, at the recovery in-process simultaneously, do not produce sulphide pollutant, also do not produce secondary waste water, waste gas, waste water and the solid waste in the slag thick liquid all obtain utilizing.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic structural view of the carbide slag stirring module of the invention;
FIG. 3 is a schematic diagram of a slurry filtration module according to the present invention;
FIG. 4 is a schematic top view of the filter plate of the present invention;
FIG. 5 is a schematic view of the blowing module of the present invention;
FIG. 6 is a schematic cross-sectional view of an outlet tube according to the present invention;
in the figure: 1. a carbide slag stirring module; 2. a transport module; 3. a slurry filtering module; 4. a mortar mixing module; 5. a brick making module; 6. a drying module; 7. an air extraction module; 8. a blowing module; 11. a stirring pool; 12. a servo motor; 13. stirring paddles; 14. a sulfur dioxide detector; 111. a mud outlet; 112. a mud inlet; 113. an air inlet; 114. an air outlet; 115. a valve; 116. a two-way valve; 131. a connecting rod; 132. a stirring rod; 133. a paddle; 31. a filter tank; 32. a filter plate; 33. a rotating motor; 34. an electromagnetic valve; 35. a rubber band; 311. a slag outlet; 312. a feed inlet; 313. a discharge port; 321. a partition plate; 322. a filter hole; 81. a main pipe; 82. dividing the pipeline; 83. an air outlet pipe; 831. and an air outlet.
Detailed Description
The invention is further illustrated, but is not limited to, the following examples.
As shown in the figure: the comprehensive utilization system of the carbide slag comprises a carbide slag stirring module 1, a conveying module 2, a slag slurry filtering module 3, a mortar mixing module 4, a brick making module 5, a drying module 6, an air extracting module 7 and an air blowing module 8.
The carbide slag stirring module 1 is used for stirring carbide slag in the tailing pond, so that the precipitated carbide slag is mixed with water to form slag slurry, and the conveying module 2 is convenient to pump the slag slurry.
The conveying module 2 is used for pumping the slurry from the carbide slag stirring module 1 to the slurry filtering module 3.
The slag slurry filtering module 3 is used for filtering impurities such as large-particle raw ore blocks in the slag slurry.
The mortar mixing module 4 is used for mixing raw materials such as carbide slag slurry, sand stone, cement and the like into concrete, so that the brick making module 5 is convenient for preparing bricks.
The brick making module 5 is convenient for preparing bricks from concrete mixed by the mortar mixing module 4.
The drying module 6 is used for drying bricks which are convenient for the brick making module 5 to prepare.
The air extraction module 7 is used for extracting air in the drying module 6 to the air blowing module 8 in the carbide slag stirring module 1.
The blowing module 8 is used for dispersing toxic gas generated in the drying module 6 into bubbles to react with carbide slag slurry in the carbide slag stirring module 1.
The carbide slag stirring module 1 comprises a stirring tank 11, a servo motor 12, a stirring paddle 13 and a sulfur dioxide detector 14, wherein the stirring tank 11 is in closed arrangement, the servo motor 12 is arranged at the top end of the inner side of the stirring tank 11, the stirring paddle 13 is arranged on a transmission shaft of the servo motor 12, the sulfur dioxide detector 14 is arranged at the top end of the stirring tank 11, an air inlet 113 and a mud inlet 112 are respectively arranged on the side surface of the bottom end of the stirring tank 11, a mud outlet 111 is arranged at the bottom end of the stirring tank 11, an air outlet 114 is further arranged at the top end of the stirring tank 11, valves 115 are respectively arranged on the mud outlet 111, the mud inlet 112, the air inlet 113 and the air outlet 114, the air inlet 114 are connected with the air inlet 113 through pipelines, a two-way valve 116 is arranged on the air outlet 114 and one valve is connected with the air outlet 114, and the other valve is connected with the air extraction module 7. The mud outlet 111 is connected with the conveying module 2 through a pipeline, and the mud inlet 112 is connected with a calcium carbide furnace, so that the reacted calcium carbide slag slurry is conveyed into the stirring tank 11 conveniently.
The servo motor 12 can be controlled by a controller to adjust the stirring power.
The stirring paddle 13 comprises two connecting rods 131, stirring rods 132 and paddles 133, wherein the two connecting rods 131 are oppositely and vertically arranged at the bottom ends of transmission shafts of the servo motor 12, three stirring rods 132 are vertically arranged on the connecting rods 131, the connecting rods 131 and the stirring rods 132 are in an inverted triangle shape, the paddles 133 are arranged at the bottom ends of the stirring rods 132, the paddles 133 are in an inverted triangle shape, the paddles 133 and the stirring rods 132 are obliquely arranged, an included angle between the axis of the stirring rods 132 and the central axis of the paddles 133 is 20-30 degrees, and thus the inclined arrangement is convenient for rolling and stirring carbide slag slurry and is favorable for slag-water mixing and waste gas reaction.
The conveying module 2 is a mud pump, and can pump the carbide slag slurry in the carbide slag stirring module 1 to the slag slurry filtering module 3, an inlet of the mud pump is connected with a mud outlet 111 of the stirring tank 11 through a pipeline, and an outlet of the mud pump is connected with a feed inlet 312 of the slag slurry filtering module 3 through a pipeline.
The slag slurry filtering module 3 is used for filtering impurities such as large-particle raw ore blocks in slag slurry, the slag slurry filtering module 3 comprises a filtering tank 31, a filtering plate 32, a rotating motor 33, an electromagnetic valve 34 and a rubber ring 35, the top end of the inner side of the filtering tank 31 is provided with the rotating motor 33, the filtering plate 32 is arranged on a transmission shaft of the rotating motor 33, the cross section of the filtering plate 32 is in an inverted V shape, the rubber ring 35 is arranged between the bottom end of the filtering plate 32 and the inner wall of the filtering tank 31, a slag hole 311 is arranged on the side surface of the filtering tank 31, a feeding hole 312 is arranged at the top end of the filtering tank 31, the feeding hole 312 is connected with an outlet of the conveying module 2 through a pipeline, the bottom end of the filtering tank 31 is provided with a discharging hole 313, and the discharging hole 313 is provided with the electromagnetic valve 34. The discharge port 313 is provided at the top end of the mortar mixing module 4.
The filter 32 is the design of the font of falling V, can be at the in-process of becoming the filtration, is that the impurity granule in the carbide slag thick liquid falls around the filter 32, and further, the bottom of filter 32 is provided with baffle 321, is convenient for take impurity granule to slag notch 311 department when filter 32 is rotatory. The filter plate 32 is provided with filter holes 322 to facilitate the filtering of carbide slag slurry.
The rotary motor 33 is used for driving the filter plate 32 to rotate during filtration, and the rubber ring 35 is used for reducing friction between the filter plate 32 and the inner wall of the filter tank 31. The solenoid valve 34 is used to control the amount of discharge at the discharge port 313.
The mortar mixing module 4 is an existing mortar stirring tower and is used for stirring and mixing cement, gravel and carbide slag slurry into brick-making concrete.
The brick making module 5 is an existing brick making machine, and can prepare the concrete stirred by the mortar mixing module 4 into green bricks.
The drying module 6 is a closed drying chamber, so that sulfide dissolved in carbide slag components of the green bricks is oxidized into sulfur dioxide and cannot overflow when the green bricks are dried.
The air extraction module 7 is an existing exhaust fan and is used for extracting the gas containing sulfur dioxide in the drying module 6 to the air blowing module 8, so that the sulfur dioxide in the waste gas can react with lime slurry (calcium hydroxide) in carbide slag slurry to generate calcium sulfate, the purpose of fixing sulfides is achieved, and the environmental pollution is reduced.
The blowing module 8 is arranged in the carbide slag stirring module 1, specifically, the blowing module 8 comprises a main pipeline 81, branch pipelines 82 and an air outlet pipe 83, one end of the main pipeline 81 is communicated with an air inlet 113, a plurality of branch pipelines 82 are symmetrically arranged on two sides of the main pipeline 81, a plurality of air outlet pipes 83 are vertically arranged on two sides of the branch pipelines 82, air outlets 831 are arranged on the air outlet pipes 83, the air outlets 831 are symmetrically arranged on two sides of the air outlet pipes 83, on one hand, the number of the air outlets 831 is increased, the volume of bubbles is reduced, the contact area between gas overflowed from the air outlets 831 and slag slurry is larger, the reaction of sulfur dioxide is facilitated, on the other hand, the slag slurry on the upper layer of the carbide slag stirring module 1 is in stirring, so that the slag slurry and the bubbles form a fluidization state, and the reaction time and the contact surface of the sulfur dioxide in the gas and the calcium hydroxide in the slag slurry are further increased, and the full absorption of the sulfur dioxide is facilitated.
The carbide slag stirring module 1 is airtight design, in the in-service use process, along with the emergence of stirring, the atmospheric pressure of its inboard headspace is bigger and bigger, on the one hand atmospheric pressure is big, can increase the lift of transport module 2, reduce the energy consumption of transport module 2, on the other hand, can return gas to the module 8 of blowing through gas outlet 114, react again, when the sulfur dioxide content that sulfur dioxide detector 14 detected is less than the setting value, can discharge gas through gas outlet 114, through this application, can carry out recycle with carbide slag thick liquid, simultaneously at the recovery in-process, do not produce sulphide pollutant, also do not produce secondary waste water, waste gas, waste water and solid waste in the slag thick liquid all obtain the utilization.
It should be understood that the above-described embodiments of the present invention are provided by way of example only and are not intended to limit the scope of the invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. Not all embodiments are exhaustive. All obvious changes or modifications which come within the spirit of the invention are desired to be protected.
Claims (8)
1. A carbide slag comprehensive utilization system is characterized in that: the device comprises a carbide slag stirring module (1), a conveying module (2), a slag slurry filtering module (3), a mortar mixing module (4), a brick making module (5), a drying module (6), an air extracting module (7) and an air blowing module (8);
the carbide slag stirring module (1) is used for stirring carbide slag in the tailing pond, so that the precipitated carbide slag is mixed with water to form slag slurry, and the conveying module (2) is convenient to pump the slag slurry;
the conveying module (2) is used for pumping the slag slurry from the carbide slag stirring module (1) to the slag slurry filtering module (3);
the slag slurry filtering module (3) is used for filtering large-particle raw ore block impurities in the slag slurry; a discharge hole (313) on the slag slurry filtering module (3) is arranged at the top end of the mortar mixing module (4);
the mortar mixing module (4) is used for mixing carbide slag slurry, sand stone and cement into concrete, so that the brick making module (5) can be used for preparing bricks conveniently;
the convenient brick making module (5) is used for preparing the concrete formed by mixing the mortar mixing module (4) into bricks;
the drying module (6) is used for drying bricks which are convenient to prepare by the brick making module (5);
the air extraction module (7) is used for extracting air in the drying module (6) into the air blowing module (8) in the carbide slag stirring module (1);
the blowing module (8) is used for dispersing toxic gas generated in the drying module (6) into bubbles to react with carbide slag slurry in the carbide slag stirring module (1).
2. The comprehensive utilization system of carbide slag according to claim 1, wherein: carbide slag stirring module (1) is including stirring pond (11), servo motor (12), stirring rake (13), sulfur dioxide detector (14), stirring pond (11) are for sealing the setting, stirring pond (11) inboard top is provided with servo motor (12), be provided with stirring rake (13) on the transmission shaft of servo motor (12), stirring pond (11) top is provided with sulfur dioxide detector (14), stirring pond (11) bottom's side is provided with air inlet (113) respectively, advances mud mouth (112), stirring pond (11) bottom is provided with out mud mouth (111), stirring pond (11) top is provided with gas outlet (114), be provided with two-way valve (116) on gas outlet (114), air inlet (113), gas inlet (113) are connected bleed module (7) through pipe connection transport module (2), advance mud mouth (112) and use and be connected with the stove.
3. The comprehensive utilization system of carbide slag according to claim 2, wherein: valves (115) are arranged on the mud outlet (111), the mud inlet (112), the air inlet (113) and the air outlet (114).
4. The comprehensive utilization system of carbide slag according to claim 2, wherein: the stirring paddle (13) comprises two connecting rods (131), two stirring rods (132) and two paddles (133), wherein the two connecting rods (131) are vertically arranged at the bottom ends of transmission shafts of the servo motors (12) in opposite directions, three stirring rods (132) are vertically arranged on the connecting rods (131), the connecting rods (131) and the stirring rods (132) are in an abundant shape, the paddles (133) are arranged at the bottom ends of the stirring rods (132), and the paddles (133) are in an inverted triangle shape.
5. The comprehensive utilization system of carbide slag according to claim 4, wherein: the stirring rod is characterized in that the blades (133) and the stirring rod (132) are obliquely arranged, and an included angle between the axis of the stirring rod (132) and the central axis of the blades (133) is 20-30 degrees.
6. The comprehensive utilization system of carbide slag according to claim 1, wherein: the slag slurry filtering module (3) comprises a filtering tank (31), a filtering plate (32), a rotating motor (33), an electromagnetic valve (34) and a rubber ring (35), wherein the rotating motor (33) is arranged at the top end of the inner side of the filtering tank (31), the filtering plate (32) is arranged on a transmission shaft of the rotating motor (33), the cross section of the filtering plate (32) is in an inverted V shape, the rubber ring (35) is arranged between the bottom end of the filtering plate (32) and the inner wall of the filtering tank (31), a slag hole (311) is formed in the side surface of the filtering tank (31), a feeding hole (312) is formed in the top end of the filtering tank (31), the feeding hole (312) is connected with an outlet of the conveying module (2) through a pipeline, a discharging hole (313) is formed in the bottom end of the filtering tank (31), and the electromagnetic valve (34) is arranged on the discharging hole (313).
7. The comprehensive utilization system of carbide slag according to claim 6, wherein: the bottom of filter (32) is provided with baffle (321), be provided with filtration pore (322) on filter (32).
8. The comprehensive utilization system of carbide slag according to claim 1, wherein: the utility model discloses a carbide slag stirring module, including carbide slag stirring module (1), blow module (8) including trunk line (81), branch pipeline (82), outlet duct (83), the one end and the air inlet (113) intercommunication of trunk line (81), the bilateral symmetry of trunk line (81) is provided with a plurality of branch pipelines (82), the both sides vertically that branch pipeline (82) are provided with a plurality of outlet duct (83), be provided with gas outlet (831) on outlet duct (83).
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