CN101323019B - Method for manufacturing tin powder for organotin production - Google Patents
Method for manufacturing tin powder for organotin production Download PDFInfo
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- CN101323019B CN101323019B CN2008100484574A CN200810048457A CN101323019B CN 101323019 B CN101323019 B CN 101323019B CN 2008100484574 A CN2008100484574 A CN 2008100484574A CN 200810048457 A CN200810048457 A CN 200810048457A CN 101323019 B CN101323019 B CN 101323019B
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Abstract
The invention provides a manufacturing method for tin powder used for producing organic tin. The invention adopts a high pressure water atomization method which includes as follows: adopting a middle frequency stainless steel heating tube of 15kW to melt metal tin ingot in a carbon steel container; discharging the molten metal tin from the carbon steel container to a cold water trough; starting a water-cannon arranged near a leak hole when the temperature of the molten tin reaches 241DEG C to 320 DEG C, atomizing the molten tin into the tin powder by utilizing the ejective water flow and adjusting the pressure of the water flow to control the sizes of the particles of the tin powder and the pressure of the water flow is 1MPa to 3MPa; with the spraying of the high pressure water flow, directly arranging the tin powder adjusted to a proper number into the cold water trough and obtaining the 10 to 50 meshes of tin powder used for producing organic tin after cooling and drying. Compared with the prior art, the manufacturing method for tin powder used for producing organic tin has the advantages of low temperature of the molten tin, few energy consumption, simple technique, lower production cost, etc. The produced tin powder has regular shapes and good quality and can completely meet the requirements for the tin powder used for producing organic tin.
Description
Technical field
The present invention is a kind of preparation method of tin powder for organotin production.
Background technology
Need use metallic tin during the production of organotin, be main with powdery and sheet when reacting, but sheet processing trouble; Simultaneously not enough with the contact area of other reaction raw materials; Can influence the speed of reaction, for the powdery glass putty, each producer's method is different; Direct purchase glass putty is arranged, the production of the tin slab oneself of purchase is also arranged.Directly purchase cost is too high, and there is certain difficult problem in do-it-yourself for production method and granular size control.
The way of producing glass putty has at present: restraint-type orifice gas atomization, hydraulic atomized method, ultrasonic standing wave atomization, solid-state phase changes method and multistage atomizing method etc.; Wherein minimum with hydraulic atomized method cost, the glass putty of being produced can satisfy organotin production.
Document " water atomization is produced glass putty and parameters Optimization design thereof " (fiber crops flood autumn, car high honour etc., General Research Inst. of Iron and Steel, Ministry of Metallurgical Industry, powder metallurgy industry; 1998 81 phases of volume) reported that a kind of water atomization produces the technical process of glass putty, concrete technology is: melting kettle is the prefabricated crucible of graphite, capacity 30kg; Adopt 100kW, the 1000Hz Frequency Induction Heating, and to propose this best tapping temperature be 813 ℃; Hydraulic pressure 10MPa, the best eye diameter that leaks should be 4mm.The glass putty order number that the method is produced is about 200 orders, and is not suitable for organotin production.And tapping temperature is too high, and hydraulic pressure is too big, and for organotin manufacturing enterprise, energy consumption is too big.
Summary of the invention
Technical problem to be solved by this invention is: to the defective of prior art, a kind of preparation method of tin powder for organotin production is provided, to satisfy organotin production demand.
The present invention solves its technical problem and adopts following technical scheme:
Operation a: the intermediate frequency stainless steel heating tube that adopts 15kW is with the fusion in carbon steel container of metal tin slab;
Operation b: melt metal tin is discharged in cold rinse bank from carbon steel container;
Operation c: when the tin coolant-temperature gage of fusion reaches 241～320 ℃, open and place near the Lou giant of eye, utilize the current of ejection to make tin water smoke change into tin powder, and regulate the granular size of water flow pressure control tin powder, water flow pressure is 1～3Mpa;
Operation d: along with the injection of High-Pressure Water, the glass putty that is adjusted to suitable order number is directly inserted in the cold rinse bank, obtain 10～50 purpose tin powder for organotin production behind the cool drying.
The present invention compared with prior art, its advantage mainly is: the tin coolant-temperature gage is lower, tapping temperature is merely 241～320 ℃; The middle frequency furnace that adopts 15kW is with tin slab fusion in carbon steel container, so energy consumption is low; Giant pressure is lower, is merely 1～3MPa; It is little to leak the eye diameter, is merely 0.6～1.2mm; Good product quality, institute goes out the glass putty regular shape, and the order number is between 10～50 orders.And technology is simple, and production cost is lower, and prepared glass putty can satisfy all organotin production demands.
Description of drawings
Fig. 1 is the sketch of the glass putty processing unit (plant) that uses of the present invention.
The specific embodiment
1. prepare cover glass putty processing unit (plant) as shown in Figure 1, comprise carbon steel container 1, stainless steel heating tube 2, row tin-tube 3, hydraulic giant 5 and cold rinse bank 6.Wherein arrange tin-tube 3 and adopt stainless steel or carbon steel to make, in the bottom of row's tin-tube Lou eyeshade 4 is housed, the circular hole that it is 0.6～1.2mm that the bottom end face of this leakage eyeshade has 3～6 diameters, these circular holes are to leak eye.Leaking eyeshade 4 is also made by carbon steel or stainless steel.Utilization is wrapped in the effect of the heater (heating tube) on row's tin-tube, and the row's of making tin-tube and leakage eyeshade 4 maintain the temperature between 241～320 ℃, so that Xi Shui is smoothly through leaking eye.
2. the intermediate frequency stainless steel heating tube that utilizes 3～6 15kW is with the fusion in carbon steel container of metal tin slab, and tin slab melts the back directly through row's tin-tube, emits through leaking eye again, falls into cold rinse bank; Do not establish valve, directly close heater in the time of parking, tin water-cooled but back just will be arranged the tin-tube pipe sealing naturally.
Cold rinse bank and carbon steel container are not all established cover plate, because cold rinse bank is bigger, glass putty will shift out after in cold rinse bank, cooling off, and carbon steel container has a spot of tin to be oxidized to tin oxide in heating process, just are suspended in surface, have formed layer protective layer.
3. when the tin coolant-temperature gage reaches 241～320 ℃, open and place near the Lou giant of eye, regulate hydraulic pressure to 1～3MPa, tin water smoke is changed into tin powder, glass putty sinks in the cold rinse bank and cools off.
4. the taking-up of the glass putty in the cold rinse bank is drained, through making 10～50 dry purpose tin powder for organotin production after the vacuum drying.
Claims (2)
1. the preparation method of a tin powder for organotin production adopts hydraulic atomized method and glass putty processing unit (plant), and this glass putty processing unit (plant) comprises carbon steel container, stainless steel heating tube, row tin-tube, hydraulic giant and cold rinse bank, it is characterized in that:
Operation a: the intermediate frequency stainless steel heating tube that adopts 15kW is with the fusion in carbon steel container of metal tin slab;
Operation b: melt metal tin is discharged in cold rinse bank from carbon steel container;
Operation c: when the tin coolant-temperature gage of fusion reaches 241～320 ℃, open and place near the Lou giant of eye, utilize the current of ejection to make tin water smoke change into tin powder, and regulate the granular size of water flow pressure control tin powder, water flow pressure is 1～3Mpa;
Operation d: along with the injection of High-Pressure Water, will be adjusted to 10～50 purpose glass puttys and directly insert in the cold rinse bank, and obtain described tin powder for organotin production behind the cool drying;
Said carbon steel container is provided with 1 row's tin-tube that is used to discharge Xi Shui, and leakage eyeshade is equipped with in this row's tin-tube bottom, and the circular hole that it is 0.6～1.2mm that the bottom end face of this leakage eyeshade has 3～6 diameters, these circular holes are to leak eye.
2. the preparation method of tin powder for organotin production according to claim 1 is characterized in that said row's tin-tube processed by carbon steel or stainless steel, and the outside is wound with heating tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100484574A CN101323019B (en) | 2008-07-18 | 2008-07-18 | Method for manufacturing tin powder for organotin production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100484574A CN101323019B (en) | 2008-07-18 | 2008-07-18 | Method for manufacturing tin powder for organotin production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101323019A CN101323019A (en) | 2008-12-17 |
| CN101323019B true CN101323019B (en) | 2012-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100484574A Active CN101323019B (en) | 2008-07-18 | 2008-07-18 | Method for manufacturing tin powder for organotin production |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554245A (en) * | 2010-12-13 | 2012-07-11 | 北京有色金属研究总院 | Tin liquid guiding device for atomizing tin powder |
| CN105855557B (en) * | 2011-11-28 | 2018-07-27 | 重庆有研重冶新材料有限公司 | A kind of metallic tin powder production method for friction material |
| CN108889956B (en) * | 2018-06-09 | 2021-06-01 | 赣州白塔金属材料有限公司 | Processing technology of high-strength tin powder |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3240256C1 (en) * | 1982-10-30 | 1983-09-29 | Blendax-Werke R. Schneider Gmbh & Co, 6500 Mainz | Process for the production of silver-tin master alloys for dental amalgams |
| CN2597133Y (en) * | 2003-01-16 | 2004-01-07 | 重庆工学院 | Shaper for ball-shaped granules of tin and tin alloy |
-
2008
- 2008-07-18 CN CN2008100484574A patent/CN101323019B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3240256C1 (en) * | 1982-10-30 | 1983-09-29 | Blendax-Werke R. Schneider Gmbh & Co, 6500 Mainz | Process for the production of silver-tin master alloys for dental amalgams |
| CN2597133Y (en) * | 2003-01-16 | 2004-01-07 | 重庆工学院 | Shaper for ball-shaped granules of tin and tin alloy |
Non-Patent Citations (2)
| Title |
|---|
| 相樟祥.水雾化条件对于金属粉末性能的影响.《粉末冶金工业》.1996,(第02期), * |
| 陈文汨等.气体雾化法制备锡粉的技术研究.《粉末冶金工业》.2002,(第03期), * |
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| CN101323019A (en) | 2008-12-17 |
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Address after: 441300 No. 9 High-tech Industrial Development Zone, Suizhou City, Hubei Province Patentee after: Hubei Gongxing New Materials Co., Ltd. Address before: 441300 Te 9 Economic and Technological Development Zone, Zengdu District, Suizhou City, Hubei Province Patentee before: Hubei Benxing Chemical Co., Ltd. |