CN204400855U - A kind of modified manganese slag Chemical Mixed Fertilizer clean-production system - Google Patents
A kind of modified manganese slag Chemical Mixed Fertilizer clean-production system Download PDFInfo
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- CN204400855U CN204400855U CN201420755457.9U CN201420755457U CN204400855U CN 204400855 U CN204400855 U CN 204400855U CN 201420755457 U CN201420755457 U CN 201420755457U CN 204400855 U CN204400855 U CN 204400855U
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- manganese slag
- roasting kiln
- mixed fertilizer
- clean
- compound fertilizer
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Abstract
The utility model discloses a kind of modified manganese slag Chemical Mixed Fertilizer clean-production system, comprise manganese slag prefabrication system, production of compound fertilizer system and manganese slag dry exhaust treatment system, described manganese slag prefabrication system comprises roasting kiln induced draft fan I, roasting kiln I, manganese slag dryer, acidified modified device and neutralization reactor, described production of compound fertilizer system comprises roasting kiln induced draft fan II, roasting kiln II, weighing and dispensing system, mixer, raw material chopper, tablets press, mixed fertilizer drying machine, compound fertilizer cooler provided, freezing air induced draft fan, sieve apparatus, film applicator and metering packaging machine, described manganese slag is dried exhaust treatment system and is comprised interchanger, surge tank, washing tower, settling tank and clean water basin.The utility model takes pyrolytic decomposition and phosphoric acid neutralizing treatment mode to carry out modification to manganese slag, modified manganese slag is obtained compound fertilizer product as raw material, turns waste into wealth.In addition, the utility model has carried out abundant process to oven dry tail gas, can ensure that environment-protecting clean is produced.
Description
Technical field
The utility model relates to waste emissions technical field of comprehensive utilization, is specifically related to a kind of modified manganese slag Chemical Mixed Fertilizer clean-production system.
Background technology
Potassium permanganate production can produce a large amount of waste emissions-manganese slag, although manganese slag belongs to trade waste, discarded bank up that not even a blade of grass grows at place, leach liquor is amaranth, direct serious environment pollution.But its composition structure of manganese slag is all inorganic mineral, containing the direct available macronutrient of plant in analysis of experiments manganese slag, potassium (K
2o), phosphorus (P
2o
5) contents on dry basis is up to 10 ~ 11%.Except containing except the potassium needed for plant-growth in manganese slag, also there is the oxidizing species potassium permanganate be harmful to crop growth, simultaneously due to containing KOH, making manganese slag pH value higher, is the reason that manganese slag can not be directly agricultural.
For the oxidizing species potassium permanganate existed in manganese slag and alkaline matter KOH, pyrolytic decomposition and phosphoric acid neutralizing treatment mode is taked to carry out modification to it.
Potassium permanganate resolves into potassium manganate, MnO at 240 DEG C
2and oxygen, potassium manganate can decompose generation MnO further
2and oxygen, reaction formula is as follows:
2KMnO
4—→K
2MnO
4+MnO
2+O
2
2K
2MnO
4—→2K
2O+2MnO
2+O
2↑
Thus potassium permanganate harmful in manganese slag is changed into the nutrient K produced needed for Chemical Mixed Fertilizer
2o.
For the KOH in manganese slag, carry out neutralization reaction adjust ph by adding phosphoric acid:
H
3PO
4+3KOH
—→
K
3PO
4+3H
2O
By above modification, after modification is passed through for the objectionable impurities potassium permanganate in manganese slag and KOH, generate the K produced needed for Chemical Mixed Fertilizer
2o and K
3pO
4, make manganese slag meet production of compound fertilizer requirement, can not work the mischief to farm crop and soil.
Therefore, as raw material production Chemical Mixed Fertilizer after manganese slag modification, not only solve the emission problem of existing waste, and production cost like product more of the same trade can reduce by more than 100 yuan/ton, is make full use of resource, really accomplishes to turn waste into wealth.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of modified manganese slag Chemical Mixed Fertilizer clean-production system, using after manganese slag modification as raw material, by adding various nitrogen, phosphorus, potassium base fertilizer obtain compound fertilizer product, makes full use of resource, turn waste into wealth.
For achieving the above object, the utility model provides following technical scheme:
Modified manganese slag Chemical Mixed Fertilizer clean-production system of the present utility model, comprises manganese slag prefabrication system, production of compound fertilizer system and manganese slag and dries exhaust treatment system;
Described manganese slag prefabrication system comprises roasting kiln induced draft fan I, roasting kiln I, manganese slag dryer, acidified modified device and neutralization reactor, described roasting kiln I is connected with gas line, the wind pipe of described roasting kiln induced draft fan I is connected with roasting kiln I, the hot air outlet pipeline of described roasting kiln I is connected with manganese slag dryer, the dry manganese slag outlet of described manganese slag dryer is connected with acidified modified device, and the acidifying manganese slag outlet of described acidified modified device is connected with neutralization reactor;
Described production of compound fertilizer system comprises roasting kiln induced draft fan II, roasting kiln II, weighing and dispensing system, mixer, raw material chopper, tablets press, mixed fertilizer drying machine, compound fertilizer cooler provided, freezing air induced draft fan, sieve apparatus, film applicator and metering packaging machine, described weighing and dispensing system, mixer, raw material chopper, tablets press, mixed fertilizer drying machine, compound fertilizer cooler provided, sieve apparatus, film applicator is connected successively with metering packaging machine, described roasting kiln II is connected with gas line, the wind pipe of described roasting kiln induced draft fan II is connected with roasting kiln II, the hot air outlet pipeline of described roasting kiln II is connected with mixed fertilizer drying machine, the wind pipe of described freezing air induced draft fan is connected with compound fertilizer cooler provided,
Described manganese slag is dried exhaust treatment system and is comprised interchanger, surge tank, washing tower, settling tank and clean water basin, the oven dry offgas outlet pipeline of described manganese slag dryer is by being connected with surge tank after the hot media channel of interchanger, the wind pipe of described roasting kiln induced draft fan I is by being connected with roasting kiln I after the cold medium channel of interchanger, described interchanger is connected with settling tank with the condensation-water drain pipeline of surge tank, described settling tank is connected with clean water basin, described clean water basin are connected with the sprinkling system in washing tower by recycle pump, described wash tower bottoms is connected with settling tank, the offgas outlet pipeline of described surge tank is connected with washing tower bottom, described washing tower top is connected with exhaust gas emission chimney.
Further, described manganese slag dryer is roller drying machine, and described acidified modified device is vertical mixing crusher, and described neutralization reactor stacks retort for leaving standstill.
Further, the dry manganese slag outlet of described manganese slag dryer is connected with acidified modified device by rotary conveyor.
Further; described mixer is all connected by rotary conveyor with between raw material chopper, between raw material chopper with tablets press and between tablets press with mixed fertilizer drying machine, and described mixed fertilizer drying machine is with between compound fertilizer cooler provided, be all connected by lift between compound fertilizer cooler provided with sieve apparatus, between sieve apparatus with film applicator and between film applicator with metering packaging machine.
Further, described tablets press is rotary drum granulator, and described mixed fertilizer drying machine is rotary dryer, and described compound fertilizer cooler provided is rotary cooler.
Further; described sieve apparatus is made up of upper strata scalping, middle level dusting cover and lower floor's powder plate; the Chemical Mixed Fertilizer outlet of described compound fertilizer cooler provided is connected with the upper strata scalping of sieve apparatus; the middle level dusting cover of described sieve apparatus is connected with film applicator; the upper strata scalping of described sieve apparatus is connected with raw material chopper, and lower floor's powder plate of described sieve apparatus is connected with tablets press.
Further, described interchanger is shell and tube heat exchanger, and hot media channel is shell side passage, and cold medium channel is tube side passage.
Further, described settling tank is two-stage settling tank, and upper level settling tank is connected with next stage settling tank by overflow port.
Further, described washing tower is packing tower.
The beneficial effects of the utility model are:
1, the utility model is for the oxidizing species potassium permanganate existed in manganese slag and alkaline matter KOH, be provided with manganese slag dryer, acidified modified device and neutralization reactor, take pyrolytic decomposition and phosphoric acid neutralizing treatment mode to carry out modification to it, potassium permanganate pyrolytic decomposition changes into the nutrient K produced needed for Chemical Mixed Fertilizer
2o, the phosphoric acid added and KOH carry out neutralization reaction and generate phosphorus potash fertilizer K
3pO
4, make manganese slag meet production of compound fertilizer requirement, can not work the mischief to farm crop and soil.
2, the utility model is using modified manganese slag as raw material, and by adding various nitrogen, phosphorus, potassium base fertilizer obtain compound fertilizer product, not only solves the emission problem of existing waste, and make full use of resource, turn waste into wealth.
3, the oven dry tail gas produced in manganese slag prefabrication process is mainly containing manganese slag dust, the utility model is provided with manganese slag and dries exhaust treatment system, make oven dry tail gas first by heat exchange freezing air, to make full use of the heat of drying tail gas, after carrying out scrubbing dust collection by washing tower water again, through exhaust gas emission smoke stack emission, therefore the utility model has carried out abundant process to oven dry tail gas, can ensure that environment-protecting clean is produced.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and beneficial effect clearly, the utility model provides following accompanying drawing to be described:
Fig. 1 is the structural representation of manganese slag prefabrication system;
Fig. 2 is the structural representation of production of compound fertilizer system;
Fig. 3 is the structural representation that manganese slag dries exhaust treatment system.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
Modified manganese slag Chemical Mixed Fertilizer clean-production system of the present utility model, comprises manganese slag prefabrication system, production of compound fertilizer system and manganese slag and dries exhaust treatment system.
Fig. 1 is the structural representation of manganese slag prefabrication system, as shown in the figure, manganese slag prefabrication system comprises roasting kiln induced draft fan I 11, roasting kiln I 12, manganese slag dryer 13, acidified modified device 14 and neutralization reactor 15, described roasting kiln I 12 is connected with gas line, the wind pipe of described roasting kiln induced draft fan I 11 is connected with roasting kiln I 12, the hot air outlet pipeline of described roasting kiln I 12 is connected with manganese slag dryer 13, the dry manganese slag outlet of described manganese slag dryer 13 is connected with acidified modified device 14, the acidifying manganese slag outlet of described acidified modified device 14 is connected with neutralization reactor 15.
Described manganese slag dryer 13 is roller drying machine, and described acidified modified device 14 is vertical mixing crusher, and described neutralization reactor 15 stacks retort for leaving standstill.
The dry manganese slag outlet of described manganese slag dryer 13 is connected with acidified modified device 14 by rotary conveyor.
The air mixed that coal gas is introduced with roasting kiln induced draft fan I 11 in roasting kiln I 12 is burnt and is produced warm air, flow to manganese slag dryer 13 carry out heat exchange from the warm air of roasting kiln I 12 and manganese slag raw material, manganese slag after hot-air dry flows out from the outlet of manganese slag dryer 13, deliver to acidified modified device 14 phosphoric acid through rotary conveyor and carry out acidified modified process, pH value is adjusted to 7 ~ 8, and further mixing is carried out with broken to material, material after fragmentation flows into neutralization reactor 15 and leaves standstill one day, and making it fully react becomes qualified prefabricated manganese slag.
Manganese slag prefabrication system, for the oxidizing species potassium permanganate existed in manganese slag and alkaline matter KOH, takes pyrolytic decomposition and phosphoric acid neutralizing treatment mode to carry out modification to it.Potassium permanganate pyrolytic decomposition changes into the nutrient K produced needed for Chemical Mixed Fertilizer
2o, the phosphoric acid added and KOH carry out neutralization reaction and generate phosphorus potash fertilizer K
3pO
4, make manganese slag meet production of compound fertilizer requirement, can not work the mischief to farm crop and soil.
Fig. 2 is the structural representation of production of compound fertilizer system, as shown in the figure, production of compound fertilizer system comprises roasting kiln induced draft fan II 201, roasting kiln II 20, weighing and dispensing system 21, mixer 22, raw material chopper 23, tablets press 24, mixed fertilizer drying machine 25, compound fertilizer cooler provided 26, freezing air induced draft fan 202, sieve apparatus 27, film applicator 28 and metering packaging machine 29, described weighing and dispensing system 21, mixer 22, raw material chopper 23, tablets press 24, mixed fertilizer drying machine 25, compound fertilizer cooler provided 26, sieve apparatus 27, film applicator 28 is connected successively with metering packaging machine 29, described roasting kiln II 20 is connected with gas line, the wind pipe of described roasting kiln induced draft fan II 201 is connected with roasting kiln II 20, the hot air outlet pipeline of described roasting kiln II 20 is connected with mixed fertilizer drying machine 25, the wind pipe of described freezing air induced draft fan 202 is connected with compound fertilizer cooler provided 26.
Described mixer 22 is with between raw material chopper 23, be all connected by rotary conveyor between raw material chopper 23 with tablets press 24 and between tablets press 24 with mixed fertilizer drying machine 25.Described mixed fertilizer drying machine 25 is with between compound fertilizer cooler provided 26, be all connected by lift between compound fertilizer cooler provided 26 with sieve apparatus 27, between sieve apparatus 27 with film applicator 28 and between film applicator 28 with metering packaging machine 29.
Described tablets press 24 is rotary drum granulator, and described mixed fertilizer drying machine 25 is rotary dryer, and described compound fertilizer cooler provided 26 is rotary cooler.
Described sieve apparatus 27 is made up of upper strata scalping, middle level dusting cover and lower floor's powder plate; the Chemical Mixed Fertilizer outlet of described compound fertilizer cooler provided 26 is connected with the upper strata scalping of sieve apparatus 27; the middle level dusting cover of described sieve apparatus 27 is connected with film applicator 28; the upper strata scalping of described sieve apparatus 27 is connected with raw material chopper 23, and lower floor's powder plate of described sieve apparatus 27 is connected with tablets press 24.
By prefabricated manganese slag and various nitrogen, phosphorus, potassium base fertilizer (Repone K, phosphorus ammonium, urea, ammonium chloride and wilkinite etc.) by sending into mixer 22 uniform stirring after weighing and dispensing system 21 accurate measurement; mixed material is sent into raw material chopper 23 and is carried out fragmentation, and after broken, tablets press 24 sent into by material.Although the material major part after granulation forms particle, but now pellet moisture is high, intensity is low, the requirement of packed and transported cannot be met, work in-process after granulating and forming send into mixed fertilizer drying machine 25, the air mixed that coal gas is introduced with roasting kiln induced draft fan II 201 in roasting kiln II 20 is burnt and is produced warm air, carries out drying and processing from roasting kiln II 20 warm air out to the material in mixed fertilizer drying machine 25.After drying, temperature of charge is higher, sends into compound fertilizer cooler provided 26, blasts air carry out cooling process by freezing air induced draft fan 202, improves granule strength further, reduces moisture.Cooling after material send into sieve apparatus 27 carry out airtight sub-sieve, macrobead returning charge sieve with dusting cover after raw material chopper 23 fragmentation under fine powder jointly return tablets press 24, again participate in granulation process, so circulate.The qualified work in-process sifted out are sent into film applicator 28 by lift and are carried out coating problems, and after film, finished product sends into metering packaging machine 29 metering packing by lift, obtains compound fertilizer product.
Fig. 3 is the structural representation that manganese slag dries exhaust treatment system, as shown in the figure, manganese slag is dried exhaust treatment system and is comprised interchanger 31, surge tank 32, washing tower 33, settling tank 34 and clean water basin 35, the oven dry offgas outlet pipeline of described manganese slag dryer 13 is by being connected with surge tank 32 after the hot media channel of interchanger 31, the wind pipe of described roasting kiln induced draft fan I 11 is by being connected with roasting kiln I 12 after the cold medium channel of interchanger 31, described interchanger 31 is connected with settling tank 34 with the condensation-water drain pipeline of surge tank 32, described settling tank 34 is connected with clean water basin 35, described clean water basin 35 are connected with the sprinkling system in washing tower 33 by recycle pump 36, be connected with settling tank 34 bottom described washing tower 33, the offgas outlet pipeline of described surge tank 32 is connected with washing tower 33 bottom, described washing tower 33 top is connected with exhaust gas emission chimney.
Described interchanger 31 is shell and tube heat exchanger, and hot media channel is shell side passage, and cold medium channel is tube side passage.Described settling tank 34 is two-stage settling tank, and upper level settling tank is connected with next stage settling tank by overflow port.Described washing tower 33 is packing tower.
The oven dry tail gas produced in manganese slag prefabrication process is mainly containing manganese slag dust, and first tail gas carry out heat exchange by interchanger 31 and roasting kiln I 12 required air; Tail gas is after air cooling, and part larger particles dust and water of condensation are deposited on 31 also regularly discharges in interchanger, and the tail gas after heat exchange enters surge tank 32 again, makes the part further condensation of water vapor and takes away a small amount of dust; Last tail gas enters after washing tower 33 water carries out scrubbing dust collection, through exhaust gas emission smoke stack emission.The slag slurry that interchanger 31 and surge tank 32 are got rid of and washing tower 33 spray washing waste water are settled out sediment discharge at settling tank 34, and upper strata clear water flows into clean water basin 35 circulated sprinkling and uses.
What finally illustrate is, above preferred embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model by above preferred embodiment, but those skilled in the art are to be understood that, various change can be made to it in the form and details, and not depart from the utility model claims limited range.
Claims (9)
1. a modified manganese slag Chemical Mixed Fertilizer clean-production system, is characterized in that: comprise manganese slag prefabrication system, production of compound fertilizer system and manganese slag and dry exhaust treatment system;
Described manganese slag prefabrication system comprises roasting kiln induced draft fan I, roasting kiln I, manganese slag dryer, acidified modified device and neutralization reactor, described roasting kiln I is connected with gas line, the wind pipe of described roasting kiln induced draft fan I is connected with roasting kiln I, the hot air outlet pipeline of described roasting kiln I is connected with manganese slag dryer, the dry manganese slag outlet of described manganese slag dryer is connected with acidified modified device, and the acidifying manganese slag outlet of described acidified modified device is connected with neutralization reactor;
Described production of compound fertilizer system comprises roasting kiln induced draft fan II, roasting kiln II, weighing and dispensing system, mixer, raw material chopper, tablets press, mixed fertilizer drying machine, compound fertilizer cooler provided, freezing air induced draft fan, sieve apparatus, film applicator and metering packaging machine, described weighing and dispensing system, mixer, raw material chopper, tablets press, mixed fertilizer drying machine, compound fertilizer cooler provided, sieve apparatus, film applicator is connected successively with metering packaging machine, described roasting kiln II is connected with gas line, the wind pipe of described roasting kiln induced draft fan II is connected with roasting kiln II, the hot air outlet pipeline of described roasting kiln II is connected with mixed fertilizer drying machine, the wind pipe of described freezing air induced draft fan is connected with compound fertilizer cooler provided,
Described manganese slag is dried exhaust treatment system and is comprised interchanger, surge tank, washing tower, settling tank and clean water basin, the oven dry offgas outlet pipeline of described manganese slag dryer is by being connected with surge tank after the hot media channel of interchanger, the wind pipe of described roasting kiln induced draft fan I is by being connected with roasting kiln I after the cold medium channel of interchanger, described interchanger is connected with settling tank with the condensation-water drain pipeline of surge tank, described settling tank is connected with clean water basin, described clean water basin are connected with the sprinkling system in washing tower by recycle pump, described wash tower bottoms is connected with settling tank, the offgas outlet pipeline of described surge tank is connected with washing tower bottom, described washing tower top is connected with exhaust gas emission chimney.
2. modified manganese slag Chemical Mixed Fertilizer clean-production system according to claim 1, is characterized in that: described manganese slag dryer is roller drying machine, and described acidified modified device is vertical mixing crusher, and described neutralization reactor stacks retort for leaving standstill.
3. modified manganese slag Chemical Mixed Fertilizer clean-production system according to claim 1, is characterized in that: the dry manganese slag outlet of described manganese slag dryer is connected with acidified modified device by rotary conveyor.
4. modified manganese slag Chemical Mixed Fertilizer clean-production system according to claim 1; it is characterized in that: described mixer is all connected by rotary conveyor with between raw material chopper, between raw material chopper with tablets press and between tablets press with mixed fertilizer drying machine, described mixed fertilizer drying machine is with between compound fertilizer cooler provided, be all connected by lift between compound fertilizer cooler provided with sieve apparatus, between sieve apparatus with film applicator and between film applicator with metering packaging machine.
5. modified manganese slag Chemical Mixed Fertilizer clean-production system according to claim 1, it is characterized in that: described tablets press is rotary drum granulator, described mixed fertilizer drying machine is rotary dryer, and described compound fertilizer cooler provided is rotary cooler.
6. modified manganese slag Chemical Mixed Fertilizer clean-production system according to claim 1; it is characterized in that: described sieve apparatus is made up of upper strata scalping, middle level dusting cover and lower floor's powder plate; the Chemical Mixed Fertilizer outlet of described compound fertilizer cooler provided is connected with the upper strata scalping of sieve apparatus; the middle level dusting cover of described sieve apparatus is connected with film applicator; the upper strata scalping of described sieve apparatus is connected with raw material chopper, and lower floor's powder plate of described sieve apparatus is connected with tablets press.
7. modified manganese slag Chemical Mixed Fertilizer clean-production system according to claim 1, it is characterized in that: described interchanger is shell and tube heat exchanger, hot media channel is shell side passage, and cold medium channel is tube side passage.
8. modified manganese slag Chemical Mixed Fertilizer clean-production system according to claim 1, is characterized in that: described settling tank is two-stage settling tank, and upper level settling tank is connected with next stage settling tank by overflow port.
9. modified manganese slag Chemical Mixed Fertilizer clean-production system according to claim 1, is characterized in that: described washing tower is packing tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420755457.9U CN204400855U (en) | 2014-12-05 | 2014-12-05 | A kind of modified manganese slag Chemical Mixed Fertilizer clean-production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420755457.9U CN204400855U (en) | 2014-12-05 | 2014-12-05 | A kind of modified manganese slag Chemical Mixed Fertilizer clean-production system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204400855U true CN204400855U (en) | 2015-06-17 |
Family
ID=53424734
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|---|---|---|---|
| CN201420755457.9U Expired - Fee Related CN204400855U (en) | 2014-12-05 | 2014-12-05 | A kind of modified manganese slag Chemical Mixed Fertilizer clean-production system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204400855U (en) |
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2014
- 2014-12-05 CN CN201420755457.9U patent/CN204400855U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20151205 |
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| EXPY | Termination of patent right or utility model |