DE740714C - Process for the production of grinding bodies and linings of all kinds of mills - Google Patents
Process for the production of grinding bodies and linings of all kinds of millsInfo
- Publication number
- DE740714C DE740714C DEH164063D DEH0164063D DE740714C DE 740714 C DE740714 C DE 740714C DE H164063 D DEH164063 D DE H164063D DE H0164063 D DEH0164063 D DE H0164063D DE 740714 C DE740714 C DE 740714C
- Authority
- DE
- Germany
- Prior art keywords
- production
- linings
- slag
- mills
- kinds
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims description 7
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000002893 slag Substances 0.000 claims description 12
- 229910000805 Pig iron Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000005496 tempering Methods 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims 1
- 230000000996 additive effect Effects 0.000 claims 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- 238000007792 addition Methods 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 235000017550 sodium carbonate Nutrition 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- C04B5/00—Treatment of metallurgical slag ; Artificial stone from molten metallurgical slag
- C04B5/06—Ingredients, other than water, added to the molten slag or to the granulating medium or before remelting; Treatment with gases or gas generating compounds, e.g. to obtain porous slag
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/22—Lining for containers
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Food Science & Technology (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
Description
Verfahren zur Herstellung von Mahlkörpern und Auskleidungen von Mühlen aller Art Zusatz zum Patent 706 oo8 Gegenstand des Hauptpatents 7o6 oog ist ein Verfahren zur Herstellung von Baustoffen aus glasig erstarrenden Stoffen, bei dem den an sich glasigen Stoffen im schmelzflüssigen Zustand die bei der. Roheisenentschweflung anfallende Entschweflungsschlacke in festem . Zustand zugesetzt wird.Process for the production of grinding media and linings for mills of all kinds of additions to patent 706 oo8 The subject of the main patent 7o6 oog is a Process for the production of building materials from glassy solidifying materials, in which the substances that are glassy in themselves in the molten state are those of the. Pig iron desulfurization accruing desulphurisation slag in solid. Condition is added.
Erfindungsgemäß wird nun die Anwendung dieses Verfahrens zur Erzeugung von Mahlkörpern und Mühlenauskleidungen vorgeschlagen, und zwar in der Weise, daß die geschmolzene Schlacke zunächst in bekannter Weise mit Alkalien bis zu io °/o vermischt, . dann in Formen gegossen und anschließend durch Temperung, wie üblich, in kristallinen Zustand übergeführt wird.According to the invention, this method is now used to generate proposed by grinding media and mill linings, in such a way that the molten slag first in a known manner with alkalis up to 10% mixed,. then poured into molds and then tempered, as usual, is converted into a crystalline state.
Von besonderem Vorteil ist es, .der Hochofenschlacke Alkalien in einer geeigneten Form, am zweckmäßigsten als die bei der Entschweflung von Roheisen anfallende Sodaentschweflungsschlacke zuzusetzen. Der Alkaliengehalt der Schlacke, also die Summe von Nag O + K, O, wird auf diese Weise erhöht, jedoch bis auf höchstens io °/o. Man kann z. B. der Hochofenentschweflungsschlacke ungefähr ioo/o Sodaentschweflungsschlacke zusetzen und hat einen Alkaliengehalt von 2 bis 3% in der Mischschlacke.It is of particular advantage to .the blast furnace slag alkalis in one suitable form, most expedient than that obtained in the desulphurisation of pig iron Add soda desulphurisation slag. The alkaline content of the slag, i.e. the Sum of Nag O + K, O, is increased in this way, but to a maximum of io ° / o. You can z. B. the blast furnace desulphurisation slag about 100 / o soda desulphurisation slag add and has an alkali content of 2 to 3% in the mixed slag.
Durch diese Behandlung mit Sodaschlacke wird die Sprödigkeit der Mahlkörper und Mühlenauskleidungen herabgesetzt, ohne daß die Festigkeit eine Einsbuße erfährt.This treatment with soda ash makes the grinding media brittle and mill linings are reduced without sacrificing strength.
Der Zusatz der Sodaschlacke bringt besondere Vorteile, namentlich wenn das Tempern .der gegossenen Schlackenkörper in Gießbetten erfolgt, da dadurch die aufgegossene Schlackenschicht erheblich dünner gehalten werden kann. Die nach dem erfindungsgemäßen Verfahren in. Formen hergestellten Körper besitzen nicht nur eine größere Härte, sondern außerdem noch- eine höhere .Zähigkeit. Sie eignen sich daher besonders zum Auskleiden von Mühlen und zur Herstellung von Mahlkörpern.The addition of soda ash brings particular advantages, namely if the tempering of the cast slag bodies takes place in casting beds, as this the poured-on slag layer can be kept considerably thinner. the by the method according to the invention in. Molded bodies do not have only greater hardness, but also greater toughness. You own therefore particularly suitable for lining mills and for manufacturing grinding media.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEH164063D DE740714C (en) | 1940-12-17 | 1940-12-17 | Process for the production of grinding bodies and linings of all kinds of mills |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEH164063D DE740714C (en) | 1940-12-17 | 1940-12-17 | Process for the production of grinding bodies and linings of all kinds of mills |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE740714C true DE740714C (en) | 1943-10-27 |
Family
ID=7183934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEH164063D Expired DE740714C (en) | 1940-12-17 | 1940-12-17 | Process for the production of grinding bodies and linings of all kinds of mills |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE740714C (en) |
-
1940
- 1940-12-17 DE DEH164063D patent/DE740714C/en not_active Expired
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