CN1107029C - Method and equipment of producing chemical pure manganese dioxide - Google Patents
Method and equipment of producing chemical pure manganese dioxide Download PDFInfo
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- CN1107029C CN1107029C CN 00113421 CN00113421A CN1107029C CN 1107029 C CN1107029 C CN 1107029C CN 00113421 CN00113421 CN 00113421 CN 00113421 A CN00113421 A CN 00113421A CN 1107029 C CN1107029 C CN 1107029C
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- pyrolysis
- rosette
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- disk
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Abstract
The present invention discloses a technological process and an apparatus for producing chemical manganese dioxide, which adopts a multi-layer circular disk pyrolyzing and oxidizing furnace with a heating jacket (disclosed in the picture) and the correspondingly matched technological process for pyrolyzing and oxidizing manganese carbonate to prepare the manganese dioxide, wherein the content of the manganese dioxide can reach 80% to 85%. The process of the present invention has simple technology, stable and reliable operation, reduced energy consumption, reduced material consumption, and enhanced pyrolyzing oxidation rate of the manganese carbonate.
Description
The present invention relates to a kind of method and equipment thereof of producing chemical manganese bioxide, particularly produce the method and the equipment thereof of chemical manganese bioxide by manganese carbonate pyrolysis.
Chemical manganese bioxide is to make drying battery and ferritic main raw material.More with the method for manganese carbonate pyrolysis inhibition and generation Manganse Dioxide at present, Chinese patent CN1072907A for example, CN2129872Y, methods such as CN2227809Y and the fluidizing furnaces that propose such as 87100333, fluidized-bed, rotary kiln realize manganese carbonate pyrolysis inhibition and generation Manganse Dioxide.Aforesaid method and equipment such as fluidizing furnace, fluidized-bed, rotary kiln etc. all exist technology complicated, and investment is big, energy expenditure height, shortcoming such as the manganese carbonate pyrolysis transformation efficiency is low.
The objective of the invention is to overcome above-mentioned shortcoming, propose to have the replacement of multiple layer metal disk pyrolysis oxidized still fluidizing furnace, fluidized-bed or the rotary kiln of heating jacket, and supporting corresponding processing method, to simplify technology, cut down the consumption of energy, improve the manganese carbonate pyrolysis transformation efficiency.
The present invention is with in the manganous carbonate adding multi-layer discs pyrolysis oxidized still that has heating jacket as shown in Figure 1, feed 350 ℃～900 ℃ high-temperature flue gas in the chuck, logical 280 ℃～400 ℃ wet air in the stove, material was residing time in furnace 4～8 hours, and Manganse Dioxide is made in pyrolysis.
The equipment of realization the inventive method at chuck A of an axial cylindrical vessel B outer wall weldering system, has multilayer rosette not of uniform size at the container B internal fixing, little rosette C as shown in Figure 1
1With big rosette C
2Be the horizontal interval from top to bottom and arrange big disk C
2The centre has a relief hole, the turning axle D of an adjustable speed is installed at the position of center line of cylindrical vessel B, and pass all rosettes, and on every layer of disk position the support arm E that is fixed on a D and stretches out to the four sides is housed, the blade F that transfers material all is housed on the support arm E.Manganous carbonate is added to the little rosette C of the superiors in the stove by equipment charging opening L
1Turning axle D starts in central authorities, and by the revolution of axle D, one side is harrowed into homogeneous thickness with the manganous carbonate particle, and one side moves forward the manganous carbonate particle.Little salver C
1The angle of blade F is outside, and a manganous carbonate material is pushed to the periphery of dish when moving forward, from C
1Fall down the deep bid C of one deck with the annular space place of B
2On.Deep bid C
2The angle of blade F inside, material is at deep bid C
2Concentrate to central authorities gradually when upward mobile, drop down onto down the shallow bid C of one deck from the tapping of central authorities
1On, motion so repeatedly.The high-temperature flue gas that with temperature is 350 ℃～900 ℃ enters chuck from body of heater inlet pipe G (or H), around body of heater from top to bottom (or from bottom to up) flow, discharge by outlet H (or G) and deliver to heating system and recycle, keep in the stove 300 ℃～400 ℃ of temperature.Will be from airheater, temperature is 280 ℃～400 ℃, the warm air that contains 10～80% (percent by volume) steam, wind-distributing pipe I by the pyrolysis oven bottom evenly feeds in the stove, flows from bottom to top, with material pyrolysis oxidation, material stops 4～8 hours in stove after, discharge by pyrolysis oven bottom J, make Manganse Dioxide, MnO
2Content is 80～85%, MnO after making with extra care
2Gas in content＞91%, pyrolysis oven discharges through upper of furnace body exhaust duct K.
The present invention has following characteristics:
1, moves because of being stirred of manganous carbonate, can guarantee that manganous carbonate well contacts with mobile high temperature wet air, helps the pyrolysis oxidation of manganous carbonate with continuous.
2,, can reach by the disk number of plies in the change pyrolysis oxidized still according to chemical manganese bioxide throughput.The velocity of rotation of available agitating vane is regulated the residence time of material, guarantees the degree of oxidation of product, improves MnO
2Transformation efficiency, reduce the consumption of the refining required medicament of back operation.
3, the high temperature wet air enters from furnace bottom, make progress successively, manganous carbonate adds by dish downwards from furnace roof, gas velocity is low, the blade velocity of rotation is little, has avoided the back-mixing of raw material and product, has satisfied manganese carbonate pyrolysis simultaneously in the low vapour concentration of high temperature, just can obtain the condition of high oxidation degree during the high vapour concentration of low temperature, help improving the final transformation efficiency of product.
4, furnace body temperature guarantees temperature-stable in the stove by high-temperature flue gas control in the chuck, and the high temperature wet air is only as oxidizing medium, so consumption is less; Rotating element only drives blades turning by turning axle, and required electric power is little, can reduce power consumption, hear rate like this, reduces running cost.
5, technological operation is simple, and convenient, pollution-free, floor space is little, need not complicated dust collecting system, is fit to large-scale continuous production.
Claims (3)
1, a kind of method of producing chemical manganese bioxide, it is characterized in that: use the multilayer garden dish pyrolysis oxidized still that has heating jacket that manganese carbonate pyrolysis is oxidized to Manganse Dioxide, the pyrolysis oxidizing temperature is 280～400 ℃, oxidizing medium is for containing the warm air of 10～80% (percent by volume) steam, and material is 4～8 hours at residing time in furnace.
2, produce the equipment of chemical manganese bioxide by the described method of claim 1, it is characterized in that: comprise that has an axial round metal cylindrical container that has heating jacket, round metal cylindrical container top has the opening for feed that adds manganous carbonate, the bottom has the discharge port of Manganse Dioxide, multilayer size rosette is installed in the container, little rosette and big rosette are the horizontal interval from top to bottom and arrange, big disk central authorities have a relief hole, the turning axle of an adjustable speed is installed at the position of center line of cylindrical vessel, turning axle passes all disks, be fixed with the support arm that stretches out to the four sides at turning axle, blade is housed on the support arm, be used for stirring and transport the material on the rosette, blade angle on the roundel is outside, when material moves forward on the disk, be pushed to the periphery of disk, fall down on the deep bid of one deck, blade angle on the big disk is inside, material is concentrated to central authorities when mobile on big disk gradually, drop down onto down on the shallow bid of one deck from the tapping of central authorities, motion and contact with damp-heat air in sending into stove so repeatedly, pyrolysis is oxidized to Manganse Dioxide.
3, by the equipment of the described production Manganse Dioxide of claim 2, it is characterized in that the number of plies of the big roundel in the metallic cylinder and the velocity of rotation of agitating vane, visual throughput size is determined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00113421 CN1107029C (en) | 2000-05-11 | 2000-05-11 | Method and equipment of producing chemical pure manganese dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00113421 CN1107029C (en) | 2000-05-11 | 2000-05-11 | Method and equipment of producing chemical pure manganese dioxide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1323745A CN1323745A (en) | 2001-11-28 |
| CN1107029C true CN1107029C (en) | 2003-04-30 |
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ID=4583208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00113421 Expired - Lifetime CN1107029C (en) | 2000-05-11 | 2000-05-11 | Method and equipment of producing chemical pure manganese dioxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1107029C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040247B (en) * | 2010-11-20 | 2012-10-24 | 湖北开元化工科技股份有限公司 | Method and device for producing chemical manganese dioxide |
-
2000
- 2000-05-11 CN CN 00113421 patent/CN1107029C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1323745A (en) | 2001-11-28 |
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| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
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| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20030430 |