CN114523559A - Comprehensive utilization system of carbide slag - Google Patents
Comprehensive utilization system of carbide slag Download PDFInfo
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- CN114523559A CN114523559A CN202111607445.2A CN202111607445A CN114523559A CN 114523559 A CN114523559 A CN 114523559A CN 202111607445 A CN202111607445 A CN 202111607445A CN 114523559 A CN114523559 A CN 114523559A
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- carbide slag
- stirring
- slag
- air
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- 239000002893 slag Substances 0.000 title claims abstract description 121
- 238000003756 stirring Methods 0.000 claims abstract description 81
- 239000002002 slurry Substances 0.000 claims abstract description 60
- 238000001914 filtration Methods 0.000 claims abstract description 41
- 239000011449 brick Substances 0.000 claims abstract description 28
- 238000001035 drying Methods 0.000 claims abstract description 23
- 238000007664 blowing Methods 0.000 claims abstract description 19
- 238000003823 mortar mixing Methods 0.000 claims abstract description 15
- 239000004567 concrete Substances 0.000 claims abstract description 9
- 238000005086 pumping Methods 0.000 claims abstract description 8
- 239000004568 cement Substances 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims abstract description 4
- 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 19
- 230000005540 biological transmission Effects 0.000 claims description 9
- 239000010802 sludge Substances 0.000 claims description 9
- 239000005997 Calcium carbide Substances 0.000 claims description 8
- 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 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims description 6
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 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 5
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 3
- 239000002910 solid waste Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- 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
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000008187 granular material Substances 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
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000126 substance Substances 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
- 230000000740 bleeding effect Effects 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
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 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
- 238000007726 management method Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005096 rolling process Methods 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
- 150000003568 thioethers Chemical class 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
Images
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
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a comprehensive utilization system of carbide slag.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 and stone and cement into concrete; the drying module is used for drying the bricks which are convenient to prepare by the brick making module; the air pumping module is used for pumping the air in the drying module into an 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 and reacting with carbide slag slurry in the carbide slag stirring module. Through this application, can carry out recycle with carbide slag slurry, simultaneously in the recovery process, do not produce the sulphide pollutant, also do not produce secondary waste water, waste gas, waste water and solid waste in the slag 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 carbide slag is waste slag which is obtained by hydrolyzing carbide to obtain acetylene gas and takes calcium hydroxide as a main component. Acetylene (C)2H2) Is one of the important raw materials of the basic organic synthesis industry, and is prepared from calcium carbide (C aC)2) The process for producing acetylene by adding water (wet method) as raw material is simple and mature, and currently occupies a large proportion in China. More than 300 kg of acetylene gas can be generated by adding water into 1t of calcium carbide, and 10t of industrial waste liquid with the solid content of about 12 percent is generated at the same time, and is commonly called as calcium carbide slurry. The carbide slag can replace limestone to prepare cement, produce quicklime to be used as a calcium carbide raw material, produce chemical products, produce building materials, be used for environmental management and the like.
At present, in the process of producing acetylene, carbide slag slurry raw materials are generally transported to a slag yard (tailing pond) to be stacked, because carbide slag and percolate with a certain water content are also strong alkaline and contain toxic and harmful substances such as sulfide, phosphide and the like, the treatment cost is high, if the carbide slag and the percolate are recycled into cement raw materials, the treatment such as filtration, drying and the like is needed, so that the subsequent environmental protection problems not only relate to water treatment but also relate to the treatment of sulfur-containing waste gas, so that many enterprises do not pre-calculate the resource utilization treatment of the carbide slag and can only stack the carbide slag, the tailing pond inventory is larger and larger, once a dam is broken, the carbide slag slurry overflows and pollutes the environment.
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 means.
A comprehensive utilization system of 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 exhaust module and an air blowing module;
the carbide slag stirring module is used for stirring carbide slag in a tailing pond to enable the precipitated carbide slag to be mixed with water to form slag slurry, so that the slag slurry can be conveniently pumped by the conveying module;
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 and stone and cement into concrete, so that the brick making module can conveniently prepare bricks;
the convenient brick making module is used for preparing bricks from concrete mixed by the mortar mixing module;
the drying module is used for drying the bricks which are convenient to prepare by the brick making module;
the air pumping module is used for pumping the gas in the drying module into an air blowing module in the carbide slag stirring module;
and the blowing module is used for dispersing toxic gas generated in the drying module into bubbles and reacting with carbide slag slurry in the carbide slag stirring module.
Further, carbide slag stirring module is including 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 of stirring pond bottom is provided with air inlet, mud inlet respectively, 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 air inlet, the gas outlet passes through the pipe connection air inlet, the module of bleeding is connected to the air inlet. 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 sludge outlet, the sludge inlet, the air inlet and the air outlet.
Further, the stirring rake includes connecting rod, puddler, paddle, the connecting rod is two, and the bottom at servo motor's transmission shaft is installed perpendicularly to two connecting rods phase to each other, the vertically on the connecting rod is provided with three puddler, connecting rod, puddler are rich font, the bottom of puddler is provided with the paddle, the paddle is the triangle-shaped of falling.
Furthermore, the paddle and the stirring rod are obliquely arranged, and an included angle between the axis of the stirring rod and the central axis of the paddle is 20-30 degrees.
Further, the sediment thick liquid filters the module including crossing jar, filter, rotation motor, solenoid valve, rubber ring, it is provided with the rotation motor to cross the inboard top of jar, be provided with the filter on the transmission shaft of rotation motor, the cross-section of filter is the font of falling V, be provided with the rubber ring between the bottom of filter and the inner wall of crossing the jar, the side of crossing the jar is provided with the slag notch, the top of crossing the jar is provided with the feed inlet, the feed inlet passes through pipeline and transport module's exit linkage, the bottom of crossing the jar is provided with the discharge gate, be provided with the solenoid valve on the discharge gate.
Furthermore, the bottom of filter is provided with the baffle, be provided with the filtration pore on the filter.
Further, the module setting of blowing is 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 vertically of branch pipeline is 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 slurry, simultaneously in the recovery process, do not produce the sulphide pollutant, also do not produce secondary waste water, waste gas, waste water and solid waste in the slag slurry all obtain utilizing.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a carbide slag stirring module according to the present invention;
FIG. 3 is a schematic structural view of a slurry filtration module of the present invention;
FIG. 4 is a schematic top view of the filter plate of the present invention;
FIG. 5 is a schematic structural diagram of the air 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 delivery module; 3. a slurry filtration 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 tank; 12. a servo motor; 13. a stirring paddle; 14. a sulfur dioxide detector; 111. a sludge outlet; 112. a sludge 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 filtration tank; 32. a filter plate; 33. rotating the motor; 34. an electromagnetic valve; 35. a rubber ring; 311. a slag outlet; 312. a feed inlet; 313. a discharge port; 321. a partition plate; 322. a filtration pore; 81. a main pipeline; 82. dividing pipelines; 83. an air outlet pipe; 831. and an air outlet.
Detailed Description
The present invention is further illustrated by the following examples, but is not limited to the details of the description.
As shown in the figure: the utility model provides a comprehensive utilization system of carbide slag, it includes carbide slag stirring module 1, carries module 2, sediment thick liquid filter module 3, mortar mixing module 4, brickmaking module 5, stoving module 6, air exhaust module 7, the module of blowing 8.
The carbide slag stirring module 1 is used for stirring the carbide slag in a tailing pond, so that the precipitated carbide slag and water are mixed 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 slurry filtering module 3 is used for filtering impurities such as large-particle original ore blocks in slurry.
The mortar mixing module 4 is used for mixing raw materials such as carbide slag slurry, sand and stone, cement and the like into concrete, so that the brick making module 5 can conveniently prepare bricks.
The brick making module 5 is used for preparing bricks from concrete mixed by the mortar mixing module 4.
The drying module 6 is used for drying the bricks prepared by the brick making module 5 conveniently.
The air extraction module 7 is used for extracting the 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.
Carbide slag stirring module 1 is including stirring pond 11, servo motor 12, stirring rake 13, sulfur dioxide detector 14, stirring pond 11 is for sealing the setting, the inboard top in stirring pond 11 is provided with servo motor 12, be provided with stirring rake 13 on servo motor 12's the transmission shaft, the top in stirring pond 11 is provided with sulfur dioxide detector 14, the side of stirring pond 11 bottom is provided with air inlet 113 respectively, it is mouthful 112 to advance mud, the bottom in stirring pond 11 is provided with mud outlet 111, the top in stirring pond 11 still is provided with gas outlet 114, mud outlet 111, mud inlet 112, air inlet 113, all be provided with valve 115 on the gas outlet 114, gas outlet 114 passes through pipe connection air inlet 113, gas outlet 114, be provided with two-way valve 116 on the air inlet 113, gas outlet 114 is connected to a valve mouth, air exhaust module 7 is connected to another valve mouth. The mud outlet 111 is connected with the conveying module 2 through a pipeline, and the mud inlet 112 is connected with the calcium carbide furnace, so that the reacted calcium carbide slag slurry is conveniently conveyed into the stirring tank 11.
The servo motor 12 can be controlled by the controller to adjust the stirring power.
The stirring paddle 13 comprises two connecting rods 131, stirring rods 132 and blades 133, the two connecting rods 131 are vertically arranged at the bottom end of a transmission shaft of the servo motor 12 in a relative mode, three stirring rods 132 are vertically arranged on the connecting rods 131, the connecting rods 131 and the stirring rods 132 are in a shape like a Chinese character feng, the blades 133 are arranged at the bottom end of the stirring rods 132, the blades 133 are in an inverted triangle shape, the blades 133 and the stirring rods 132 are obliquely arranged, and an included angle between the axis of each stirring rod 132 and the central axis of each blade 133 ranges from 20 degrees to 30 degrees, so that the blades are obliquely arranged, carbide slag slurry is conveniently stirred in a rolling mode, and slag water mixing and waste gas reaction are facilitated.
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, the inlet of the mud pump passes through the mud outlet 111 of the pipe connection stirring tank 11, and the outlet of the mud pump passes through the feed inlet 312 of the pipe connection slag slurry filtering module 3.
Slag slurry filtering module 3 is arranged in filtering impurity such as the former ore block of large granule in the slag slurry, slag slurry filtering module 3 is including filtering jar 31, filter 32, rotate motor 33, solenoid valve 34, rubber ring 35, the inboard top of filtering jar 31 is provided with rotates motor 33, the transmission shaft that rotates motor 33 is provided with filter 32, the cross-section of filter 32 is the font of falling V, be provided with rubber ring 35 between the bottom of filter 32 and the inner wall of filtering jar 31, the side of filtering jar 31 is provided with slag notch 311, the top of filtering jar 31 is provided with feed inlet 312, feed inlet 312 passes through the exit linkage of pipeline and transport module 2, the bottom of filtering jar 31 is provided with discharge gate 313, be provided with solenoid valve 34 on the discharge gate 313. 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 in the in-process that becomes the filtration, and the impurity granule that is in the carbide slag thick liquid falls to filter 32 all around, and is further, and 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, which is convenient for the filtration of the carbide slag slurry.
The rotating motor 33 is used for driving the filter plate 32 to rotate during filtering, 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 mixing tower and is used for 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 when the green brick is dried, sulfide dissolved in carbide slag components of the green brick is oxidized into sulfur dioxide and cannot overflow.
The air exhaust module 7 is an existing exhaust fan and is used for exhausting gas containing sulfur dioxide in the drying module 6 to the air blowing module 8, so that the sulfur dioxide in waste gas and lime slurry (calcium hydroxide) in the carbide slag slurry react 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, concretely, 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 each branch pipeline 82, an air outlet 831 is arranged on each air outlet pipe 83, and the air outlet 831 are symmetrically arranged on two sides of each air outlet pipe 83, so that the air outlets 831 can be more in number, the volume of bubbles can be reduced, the contact area of gas overflowing from the air outlets 831 and slag slurry is larger, the reaction of sulfur dioxide can be facilitated, on the other hand, the slag slurry on the upper layer of the carbide slag stirring module 1 is stirred, so that the slag slurry and the bubbles form a fluidized state, the reaction time and the contact area of the sulfur dioxide in the gas and calcium hydroxide in the slag slurry can be further increased, is helpful for the slag slurry to fully absorb the sulfur dioxide.
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, atmospheric pressure is big on the one hand, can increase the lift of carrying module 2, reduce the energy consumption of carrying module 2, on the other hand, can return gas back blowing module 8 through gas outlet 114, the re-reaction, when the sulfur dioxide content that sulfur dioxide detector 14 detected is less than the setting value, can be through gas outlet 114 with gaseous emission, through this application, can carry out recycle with carbide slag slurry, simultaneously at the recycling process, do not produce the sulphide pollutant, do not produce secondary waste water yet, waste gas, waste water and solid waste in the slag slurry all obtain utilizing.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious changes and modifications which are obvious to the technical scheme of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides a comprehensive utilization system of carbide slag which 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 extraction module (7) and an air blowing module (8);
the carbide slag stirring module (1) is used for stirring carbide slag in a tailing pond to mix the precipitated carbide slag with water to form slag slurry, so that the conveying module (2) can pump the slag slurry conveniently;
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;
the mortar mixing module (4) is used for mixing carbide slag slurry, sand and stone and cement into concrete, so that the brick making module (5) can conveniently prepare bricks;
the convenient brick making module (5) is used for preparing bricks from concrete mixed by the mortar mixing module (4);
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 the air in the drying module (6) into an air blowing module (8) in the carbide slag stirring module (1);
and 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, characterized in that: the acetylene sludge 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 arranged in a closed manner, 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 sludge inlet (112) are respectively arranged on the side surface of the bottom end of the stirring tank (11), a sludge outlet (111) is arranged at the bottom end of the stirring tank (11), an air outlet (114) is arranged at the top end of the stirring tank (11), a two-way valve (116) is arranged on the air outlet (114) and the air inlet (113), the air outlet (114) is connected with the air inlet (113) through a pipeline, the air inlet (113) is connected with an air exhaust module (7), the mud outlet (111) is connected with the conveying module (2) through a pipeline, and the mud inlet (112) is used for being connected with the calcium carbide furnace.
3. The comprehensive utilization system of carbide slag according to claim 2, characterized in that: and valves (115) are arranged on the sludge outlet (111), the sludge inlet (112), the air inlet (113) and the air outlet (114).
4. The comprehensive utilization system of carbide slag according to claim 2, characterized in that: stirring rake (13) are including connecting rod (131), puddler (132), paddle (133), connecting rod (131) are two, and the bottom at the transmission shaft of servo motor (12) is installed perpendicularly to two connecting rods (131) are relative, the vertically is provided with three puddler (132) on connecting rod (131), puddler (132) are rich font, the bottom of puddler (132) is provided with paddle (133), paddle (133) are triangle-shaped.
5. The comprehensive utilization system of carbide slag according to claim 4, wherein: the paddle (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 paddle (133) is 20-30 degrees.
6. The comprehensive utilization system of carbide slag according to claim 1, characterized in that: sediment thick liquid filter module (3) is including filtering jar (31), filter (32), rotating motor (33), solenoid valve (34), rubber ring (35), the top of filtering jar (31) inboard is provided with rotates motor (33), be provided with filter (32) on the transmission shaft of rotating motor (33), the cross-section of filter (32) is the font of falling V, be provided with rubber ring (35) between the bottom of filter (32) and the inner wall of filtering jar (31), the side of filtering jar (31) is provided with slag notch (311), the top of filtering jar (31) is provided with feed inlet (312), feed inlet (312) are through the exit linkage of pipeline with transport module (2), the bottom of filtering jar (31) is provided with discharge gate (313), be provided with solenoid valve (34) on discharge gate (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, characterized in that: blow module (8) and set up at carbide slag stirring module (1), blow module (8) including trunk line (81), branch pipeline (82), outlet duct (83), the one end and air inlet (113) intercommunication of trunk line (81), the bilateral symmetry of trunk line (81) is provided with a plurality of root and divides pipeline (82), the both sides vertically of dividing pipeline (82) is provided with a plurality of outlet ducts (83), be provided with gas outlet (831) on outlet duct (83).
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