CN115073137A - Production process for producing light environment-friendly building material by using manganese sulfate waste residue - Google Patents
Production process for producing light environment-friendly building material by using manganese sulfate waste residue Download PDFInfo
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- CN115073137A CN115073137A CN202210872227.XA CN202210872227A CN115073137A CN 115073137 A CN115073137 A CN 115073137A CN 202210872227 A CN202210872227 A CN 202210872227A CN 115073137 A CN115073137 A CN 115073137A
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- manganese sulfate
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- building material
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- 239000002699 waste material Substances 0.000 title claims abstract description 46
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 title claims abstract description 28
- 229940099596 manganese sulfate Drugs 0.000 title claims abstract description 27
- 235000007079 manganese sulphate Nutrition 0.000 title claims abstract description 27
- 239000011702 manganese sulphate Substances 0.000 title claims abstract description 27
- 239000004566 building material Substances 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000011449 brick Substances 0.000 claims abstract description 46
- 239000000463 material Substances 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 14
- 230000032683 aging Effects 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 239000002689 soil Substances 0.000 claims abstract description 8
- 238000001125 extrusion Methods 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims description 21
- 238000005520 cutting process Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 6
- 238000010304 firing Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- 238000004381 surface treatment Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 3
- 239000002912 waste gas Substances 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011572 manganese Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229910000357 manganese(II) sulfate Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000004682 monohydrates Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/138—Waste materials; Refuse; Residues from metallurgical processes, e.g. slag, furnace dust, galvanic waste
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1328—Waste materials; Refuse; Residues without additional clay
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Dispersion Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a production process for producing a light environment-friendly building material by using manganese sulfate waste residues, which comprises the following steps: the method comprises the following steps: the raw materials are smashed, the waste residues are led into a grinder through a lifting mechanism, the waste residues are ground, the ground materials are led into a stirrer, the materials are fully stirred through a double-shaft stirrer, soil curing agents are added into the stirrer in the stirring process, clear water is added according to the amount of the materials, and then the materials are fully stirred again. According to the invention, the brick is made of the manganese sulfate waste residue, so that the manganese sulfate waste residue can be used as a raw material to be matched with the soil curing agent for stirring, and then the sintered brick is made through the steps of aging, extrusion molding and the like, so that wastes can be fully utilized.
Description
Technical Field
The invention relates to the field of manganese sulfate waste residue, in particular to a production process for producing a light environment-friendly building material by using manganese sulfate waste residue.
Background
Manganese sulfate (chemical formula MnSO4, formula 151.00) has a reddish-brown orthorhombic monohydrate, a relative density of 3.50, a melting point of 700 ℃, is easily soluble in water and is insoluble in ethanol. It exists in the form of various hydrates.
Manganese sulfate waste residue is generated in the processes of filter pressing and filtering, namely, the manganese sulfate waste residue is the residue left after processed manganese ore powder is dissolved by sulfuric acid, the waste residue contains a large number of heavy metals, the quantity is large, especially manganese, Mn + ions are the main pollution indexes, the content of Mn elements in the waste residue is huge, high pollution is caused to the environment, and therefore the waste residue needs to be subjected to harmless treatment.
Therefore, a production process for producing the light environment-friendly building material by using the manganese sulfate waste residue is provided.
Disclosure of Invention
The invention aims to provide a production process for producing a light environment-friendly building material by using manganese sulfate waste residues, which solves the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a production process for producing a light environment-friendly building material by using manganese sulfate waste residues comprises the following steps:
the method comprises the following steps: crushing raw materials, namely guiding the waste residues into a grinder by using a lifting mechanism, grinding the waste residues, guiding the ground materials into a stirrer, fully stirring the ground materials by using a double-shaft stirrer, adding a soil curing agent into the stirrer in the stirring process, adding clear water according to the amount of the materials, and fully stirring the materials again;
step two: aging the raw materials, namely conveying the materials obtained in the step one to an aging warehouse by using a conveyor for stacking and aging, and ensuring that the materials can be fully infiltrated by water;
step three: extruding and molding, namely feeding the aged material into a bipolar vacuum brick extruder for extrusion molding, and cutting the molded mud strips into green bricks with required sizes for later use through an automatic strip cutting machine and an automatic blank cutting machine after surface treatment;
step four: drying, namely conveying the green bricks into a drying channel by using a kiln car, and allowing the kiln car to stay in the drying channel for drying so as to ensure thorough drying of the green bricks;
step five: and (3) roasting, wherein the dried green bricks are dragged to a roasting channel through a traction mechanism, are preheated through a preheating channel, are roasted through the roasting channel to form sintered bricks, are cooled through a cooling channel, and are guided out of the sintered bricks.
As a preferred embodiment of the present invention, the drying time in the fourth step is 24-26 h.
As a preferred embodiment of the present invention, the dust generated during the pulverization in the first step is removed by a dust collector.
In a preferred embodiment of the present invention, the firing channel temperature in the fifth step is 200 ℃ and the firing period is 28 hours.
As a preferred embodiment of the present invention, an exhaust fan is disposed at the end of the cooling channel in the fifth step, and an air outlet of the exhaust fan is disposed at the preheating channel.
As a preferred embodiment of the present invention, the waste products in the baked bricks obtained in the fifth step are recycled by being crushed again in the first step.
In a preferred embodiment of the present invention, the exhaust gas generated in the fifth step is treated and discharged by an exhaust gas treatment system.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the brick is made from the manganese sulfate waste residue, so that the manganese sulfate waste residue can be used as a raw material to be matched with a soil curing agent for stirring, and then the brick is made into the baked brick through the steps of aging, extrusion molding, drying, roasting and the like, so that wastes can be fully utilized, and compared with the existing brick which is used as an absorbent for absorbing sulfur dioxide, the brick is further processed, the technical scheme has thorough processing, and has higher economic benefit and maximized comprehensive utilization rate, and the baked brick is prepared from the wastes, so that energy is saved, the environment-friendly effect is achieved, and meanwhile, in the process of making the baked brick, the heat absorbed by cooling is fed back into the preheating channel again, so that the effect of saving energy is further achieved by recycling the heat energy.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a flow chart of the production process for producing light environment-friendly building materials by using manganese sulfate waste residues.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1, the present invention provides a technical solution: a production process for producing a light environment-friendly building material by using manganese sulfate waste residues comprises the following steps:
the method comprises the following steps: crushing raw materials, guiding the waste residues into a grinding machine by using a lifting mechanism, grinding the waste residues, guiding the ground materials into a stirrer, fully stirring the materials by using a double-shaft stirrer, adding a soil curing agent into the stirrer in the stirring process, adding clear water according to the amount of the materials, and fully stirring again;
step two: aging the raw materials, namely conveying the materials obtained in the step one to an aging warehouse by using a conveyor for stacking and aging, and ensuring that the materials can be fully infiltrated by water;
step three: extruding and molding, namely feeding the aged material into a bipolar vacuum brick extruder for extrusion molding, and cutting the molded mud strips into green bricks with required sizes for later use through an automatic strip cutting machine and an automatic blank cutting machine after surface treatment;
step four: drying, namely conveying the green bricks into a drying channel by using a kiln car, and allowing the kiln car to stay in the drying channel for drying so as to ensure thorough drying of the green bricks;
step five: and (3) roasting, wherein the dried green bricks are dragged to a roasting channel through a traction mechanism, are preheated through a preheating channel, are roasted through the roasting channel to form sintered bricks, are cooled through a cooling channel, and are guided out of the sintered bricks.
The specific implementation is as follows:
firstly, waste residue is led into a grinding machine by a lifting mechanism, the waste residue is ground, ground materials are led into a stirrer, the materials are fully stirred by a double-shaft stirrer, dust generated in the grinding process is removed by a dust collector, soil curing agent is added into the stirrer in the stirring process, clear water is added according to the amount of the materials, the materials are fully stirred again, then the materials are conveyed to an ageing warehouse by a conveyor to be piled and aged, the materials can be fully infiltrated by moisture, the aged materials are conveyed to a bipolar vacuum brick extruding machine to be extruded and formed, formed mud strips are subjected to surface treatment and then are cut into green bricks with required sizes by an automatic strip cutting machine and an automatic blank cutting machine for standby, a kiln car is utilized to convey the green bricks into a drying channel, the kiln car stays in the drying channel to be dried, and the green bricks are ensured to be thoroughly dried, the drying-finished green bricks are drawn to the roasting channel by the drawing mechanism, the green bricks are preheated through the preheating channel, then the green bricks are fired through the roasting channel to form sintered bricks, the temperature of the sintering channel is 200 ℃, the sintering period is 28h, then the green bricks are cooled through the cooling channel, the tail end of the cooling channel is provided with an exhaust fan, an air outlet of the exhaust fan is arranged at the position of the preheating channel, then the sintered bricks can be led out, waste products in the finished sintered bricks can be fed back to the first step for crushing and recycling, and meanwhile, waste gas generated in the roasting process is treated and discharged through a tail gas treatment system.
In summary, the brick is made from the manganese sulfate waste residues, so that the manganese sulfate waste residues can be used as raw materials to be matched with the soil curing agent for stirring, then the sintered brick is made through the steps of aging, extrusion molding, drying, roasting and the like, waste can be fully utilized, and compared with the existing method of taking the manganese sulfate waste residues as an absorbent to absorb sulfur dioxide, the method needs further treatment, the technical scheme is thorough in treatment, the economic benefit is higher, the comprehensive utilization rate is maximized, and meanwhile, in the process of making the sintered brick, the heat absorbed by cooling is fed back into the preheating channel again, so that the effect of saving energy is further achieved by recycling heat energy.
While there have been shown and described what are at present considered to be the basic principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A production process for producing a light environment-friendly building material by using manganese sulfate waste residues is characterized by comprising the following steps of: the process comprises the following steps:
the method comprises the following steps: crushing raw materials, guiding the waste residues into a grinding machine by using a lifting mechanism, grinding the waste residues, guiding the ground materials into a stirrer, fully stirring the materials by using a double-shaft stirrer, adding a soil curing agent into the stirrer in the stirring process, adding clear water according to the amount of the materials, and fully stirring again;
step two: aging the raw materials, namely conveying the materials obtained in the step one to an aging warehouse by using a conveyor for stacking and aging, and ensuring that the materials can be fully infiltrated by water;
step three: extruding and molding, namely feeding the aged material into a bipolar vacuum brick extruder for extrusion molding, and cutting the molded mud strips into green bricks with required sizes for later use through an automatic strip cutting machine and an automatic blank cutting machine after surface treatment;
step four: drying, namely conveying the green bricks into a drying channel by using a kiln car, and allowing the kiln car to stay in the drying channel for drying so as to ensure thorough drying of the green bricks;
step five: and (3) roasting, wherein the dried green bricks are dragged to a roasting channel through a traction mechanism, are preheated through a preheating channel, are roasted through the roasting channel to form sintered bricks, are cooled through a cooling channel, and are guided out of the sintered bricks.
2. The production process for producing the light environment-friendly building material by using the manganese sulfate waste residue as claimed in claim 1, is characterized in that: the drying time in the fourth step is 24-26 h.
3. The production process for producing the light environment-friendly building material by using the manganese sulfate waste residue as claimed in claim 1, is characterized in that: and removing dust generated in the crushing process in the step one by a dust collector.
4. The production process for producing the light environment-friendly building material by using the manganese sulfate waste residue as claimed in claim 1, is characterized in that: and the firing channel temperature in the fifth step is 200 ℃, and the firing period is 28 h.
5. The production process for producing the light environment-friendly building material by using the manganese sulfate waste residue as claimed in claim 1, is characterized in that: and a draft fan is arranged at the tail end of the cooling channel in the fifth step, and an air outlet of the draft fan is arranged at the preheating channel.
6. The production process for producing the light environment-friendly building material by using the manganese sulfate waste residue as claimed in claim 1, is characterized in that: and D, re-crushing and utilizing waste products in the sintered bricks obtained in the step five through the step I.
7. The production process for producing the light environment-friendly building material by using the manganese sulfate waste residue as claimed in claim 1, is characterized in that: and treating and discharging the waste gas generated in the fifth step through a tail gas treatment system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210872227.XA CN115073137A (en) | 2022-07-23 | 2022-07-23 | Production process for producing light environment-friendly building material by using manganese sulfate waste residue |
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| CN202210872227.XA CN115073137A (en) | 2022-07-23 | 2022-07-23 | Production process for producing light environment-friendly building material by using manganese sulfate waste residue |
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| CN202210872227.XA Pending CN115073137A (en) | 2022-07-23 | 2022-07-23 | Production process for producing light environment-friendly building material by using manganese sulfate waste residue |
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2022
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Application publication date: 20220920 |