CN1149138C - Classifying method for rubber powder - Google Patents
Classifying method for rubber powder Download PDFInfo
- Publication number
- CN1149138C CN1149138C CNB00112739XA CN00112739A CN1149138C CN 1149138 C CN1149138 C CN 1149138C CN B00112739X A CNB00112739X A CN B00112739XA CN 00112739 A CN00112739 A CN 00112739A CN 1149138 C CN1149138 C CN 1149138C
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- China
- Prior art keywords
- powder
- rubber
- rubber powder
- additive
- sieving
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- 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 - Fee Related
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- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention provides a classifying method for rubber powder, which comprises the following steps: firstly, rubber powder is mixed with a powdered additive after crushed, then the mixture is put into a kneading container to get kneaded, and finally sieves with different meshes are used for sieving and separation, wherein the powdered additive is one or more kind of the powdered strengthening agent and/or filling agent for rubber, the granularity of the powdered additive is controlled to be 50 to 500 meshes, and the mixing ratio of the rubber powder to the powdered additive is 100: 0.5 to 10 by weight. The present invention can cause adhesive rubber powder to be in loose condition, which is favorable for sieving, and the present invention is particularly suitable for classifying powder from waste rubber tires that are crushed.
Description
The present invention relates to a kind of stage division of powder, particularly relate to a kind of stage division of rubber powder.
At present, the method of powder classification is a lot, as air current classifying, cross sieve classification etc., but for rubber powder, waste and used rubber tyre powder after crushed particularly, owing to have certain viscosity, adding to mix in the powder has fiber, makes it be mesh adhesion attitude shape, carries out sieve classification if adopt to sieve, there is very big difficulty, can't separates varigrained rubber powder.
The object of the present invention is to provide a kind of simple to operate, the stage division of the rubber powder that the performance and the purposes of rubber powder are not had influence.
The stage division of rubber powder of the present invention is, at first with rubber powder, or the waste and used rubber tyre powder after pulverizing carries out premixed with the additive powder in proportion, mixed proportion by weight at last, rubber powder: additive powder=100: 0.5～10, the granularity of rubber powder is generally 40～200 orders, the additive powder can be rubber one or more in reinforcing agent, also can be rubber one or more in inserts, it also can be the mixture of the two, as carbon black, calcium carbonate, talcum powder, potter's clay, clay powder and flyash etc., its granularity generally is controlled at 50～500 orders, uses the fineness of additive powder to decide according to the granularity and the purposes of rubber powder.After the premixed mixture is put into the kneading container, as the high speed kneader, its rotating speed generally is controlled at 500～5000 rev/mins, the kneading time was generally 1～5 minute, taking-up is cooled off naturally, selects for use the sieve of different meshes to carry out sieving separating at last, as adopting roller sieve etc.Obtain the finished product rubber powder of different meshes.
The advantage of the stage division of rubber powder of the present invention is simple to operate, and the additive powder does not influence the serviceability of rubber powder, and grading effect is good, is particularly suitable for the classification of waste and used rubber tyre powder after crushed.
Describe the embodiment of the invention below in detail.
Embodiment 1: waste and used rubber tyre powder 100 kilograms (40～150 orders) is after crushed carried out premixed with 0.8 kilogram of 325 purpose carbon black, then mixture is put into and mediated container, rotating speed is 1400 rev/mins, mediated 3 minutes, and took out, naturally cooling, sieve with 60,80 and 100 purpose sifting beds respectively, get fiber 8% (weight), 60 order rubber powders 21% (weight), 80 rubber powders 19% (weight) and 100 order rubber powders 52.8% (weight).
Embodiment 2: waste and used rubber tyre powder 100 kilograms (40～150 orders) is after crushed carried out premixed with 5 kilogram of 400 order talcum powder and 1 kilogram of 450 order flyash, then mixture is put into and mediated container, rotating speed is 2800 rev/mins, mediated 5 minutes, and took out, naturally cooling, sieve with 60,80 and 100 purpose sifting beds respectively, get fiber 8% (weight), 60 order rubber powders 42.8% (weight), 80 order rubber powders 25% (weight) and 100 order rubber powders 30.2% (weight).
Claims (2)
1, a kind of stage division of rubber powder, adopted sieve classification, it is characterized in that sieving the screening before, rubber powder and additive powder after pulverizing are carried out premixed, mixture being put into the kneading container mediates again, naturally cooling, select the sieve sieving separating of different meshes at last for use, wherein the additive powder is rubber one or more in reinforcing agent and/or the filler powder, and the granularity of control additive powder is at 50 orders～500 orders, mixed proportion by weight at last, rubber powder: additive powder=100: 0.5～10.
2, the stage division of rubber powder according to claim 1, it is characterized in that mediating rotating speed is 500～5000 rev/mins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB00112739XA CN1149138C (en) | 2000-03-10 | 2000-03-10 | Classifying method for rubber powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB00112739XA CN1149138C (en) | 2000-03-10 | 2000-03-10 | Classifying method for rubber powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1263813A CN1263813A (en) | 2000-08-23 |
| CN1149138C true CN1149138C (en) | 2004-05-12 |
Family
ID=4582578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB00112739XA Expired - Fee Related CN1149138C (en) | 2000-03-10 | 2000-03-10 | Classifying method for rubber powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1149138C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106007437A (en) * | 2014-02-14 | 2016-10-12 | 四川金摩尔环保新材料有限责任公司 | Rubber and cement matrix powder |
| CN106007542A (en) * | 2014-02-14 | 2016-10-12 | 四川金摩尔环保新材料有限责任公司 | High-strength flexural cement mortar stone product |
| CN106082742A (en) * | 2016-06-16 | 2016-11-09 | 四川金摩尔环保新材料有限责任公司 | A kind of cement original washing powder and in the application of cement concrete and application in highway construction thereof |
| EP4269081A3 (en) * | 2019-09-10 | 2024-02-14 | Re-Match Holding A/S | A turf infill separation system and method for separating a dry or dried infill such as from an artificial turf product |
-
2000
- 2000-03-10 CN CNB00112739XA patent/CN1149138C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1263813A (en) | 2000-08-23 |
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Legal Events
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |