CN101224609A

CN101224609A - Method for applying sand suspension to eject old tire in high pressure to preparing rubber powder and device thereof

Info

Publication number: CN101224609A
Application number: CNA2007101989444A
Authority: CN
Inventors: 刘威衢
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-03
Filing date: 2007-12-03
Publication date: 2008-07-23

Abstract

The invention relates to a method and a device which applies a sand suspending liquid to the preparation of rubber powder with scrap tire by high pressure jet, the sand suspending liquid extra high pressure jet technology is utilized to directly process the scrap tire into powder, at the same time, the jet rubber powder enters an abrasive disc to grind the rubber powder, the ground rubber powder from the abrasive disc is deposited, defibered, and filtered, and then the hydrous rubber powder is dried; the steel wire in the scrap tire can be separated from the rubber primarily by undercutting and the steel wire is in good condition, and the filtered sand suspending fluid can be recycled. Fineness of the rubber powder produced by this technology can achieve the required standard and has dispersibility, the grinding speed is high and the yield is high; also the technology is time-saving, labor-saving, convenient for production and energy-saving; the invention needs less investment and has no waster water discharge, no noise and no pollution, and the sand suspending fluid abrasive can also be applied for the high pressure jet cutting of various metals, stones, ceramics, glass, timbers and so on, so the application field is wide.

Description

Sand suspension is applied to method and the device that the high-pressure injection damaged tire prepares rubber powder

Technical field

The present invention relates to a kind of sand suspension and be applied to method and the device that the high-pressure injection damaged tire prepares rubber powder, provide a kind of method for preparing rubber powder from thick waste old specifically, method provided by the invention is specially adapted to the recycling of waste tire rubber, waste old etc., and especially sand suspension also is applied to high-pressure injection and cuts various metals, stone material, pottery, glass, timber etc.

Background technology

Developing of automobile industry, increase along with cars ' entry into family and car owning amount, junked tire quantity also will roll up, add sebific duct, adhesive tape, rubber overshoes and other rubber, how effective recycling, turning waste into wealth, prevent from environment is polluted, is the new problem that China's utilization of the recycling of renewable resources faces.

Rubber for tire is a kind of macromolecular material of high crosslink density, have high resiliency and high energy storage, under less external force effect, can produce very big deformation, return to approximate original shape again very soon after allaying load, therefore it is generally acknowledged that rubber is difficult to pulverize, and adopts liquid nitrogen deep to pulverize usually under normal temperature condition; In addition, because its thermosetting characteristics can not resemble waste or used plastics and reduce volume or melt machine-shaping recycling by fusion or dissolving, adopt burning or landfill to reduce accumulating amount usually, but produce serious secondary pollution.The degree of depth utilization of waste tire rubber causes that people pay attention to, and makes rubber powder by rubber is pulverized, and directly uses then or use with other material blending to be considered to the optimal path that waste old is recycled, and the pulverizing of waste old is the basis of recycling.

At present, the production method of waste old rubber powder mainly contains following several both at home and abroad:

1, normal temperature crushing up: utilize mechanical shear stress that film is cut, pushes at normal temperatures, make it become rubber powder with certain particle size.Can select for use the mill of wounded in the battle roller, the pulverizer that the band saw dentation revolves cutter to pulverize.The characteristics of this production rubber powder method are that equipment is simple, treating capacity is big, and rubber grain is stretched, tears under the mechanical shearing effect being subjected to, and is burr shape and strip, the rubber powder of acquisition, and the rubber powder particle diameter is bigger, and it is serious to reunite, and difficulties in dispersion is used restricted.

2) low-temperature grinding method: the damaged tire piece is refrigerated to below the rubber glass transition temperature, it is become fragile, carry out fragmentation again, produce rubber powder.Generally adopt liquid nitrogen refrigerating abroad, the domestic compressed air multistage segmentation refrigeration explained hereafter rubber powder that expands of also having developed, both common advantages are that technology is simple, pollution-free, the fine glue powder productive rate is higher, but shortcoming is that investment is big, energy consumption and cost height, produce every Kg rubber powder and need consume liquid nitrogen 1.55Kg, the rubber powder fineness that this method is produced is less than 500gm, but equipment has high input, the production process energy consumption is up to 1500kWh/t, and it is low that rubber powder specific activity normal temperature is pulverized.

3, water jet comminuting method: junked tire is placed on the runing rest, and make junked tire place the water cutting head of hydraulic pressure greater than 200MPa, make junked tire make slow rotation, form the rubber impact on the junked tire Powdered in conjunction with the dissection that powerful kinetic energy produced of water jet.The method of this water cutting rubber powder, the rubber that cuts out is that tablet, thick block are many, rubber powder is few, also have part rubber to connect mutually with wire, the tire metal silk can not disposablely separate with rubber for tire makes rubber powder, change the outfit junked tire inconvenience, effort, time-consuming, speed of production is slow, yield poorly, fineness do not reach shortcomings such as application need.

Summary of the invention

Order of the present invention is to provide a kind of sand suspension to be applied to method and device that the high-pressure injection damaged tire prepares rubber powder at the prior art deficiency, invent and a kind ofly utilize sand suspension superhigh pressure jetting technology that junked tire directly is processed into powder and make simultaneously the rubber powder under spraying enter mill rubber milling powder simultaneously, rubber powder enters the rubber powder that mill grinds and precipitates, remove fiber, filter, moisture rubber powder is carried out drying, screening, packing, the wire of junked tire can be cut the end and make rubber powder disposable the separation with rubber, the guiding principle silk is intact, fiber and wire are made waste product and are sold, sand suspension recycles, the rubber powder that this technology is produced has dispersiveness, disposable the reaching of fineness needs standard, abrasive dust is quick, the output height, the rubber powder activity is not destroyed, the rubber powder activity is good, save time, laborsaving, convenient for production, energy-conservation, small investment, the efficient height, non-wastewater discharge, noiselessness, environmental nonpollution.

The technical scheme of method of the present invention is:

Sand suspension is applied to method and the device that the high-pressure injection damaged tire prepares rubber powder, and it may further comprise the steps, and it is characterized in that:

1, the preparation method of sand suspension, feedstock composition is sand 1-25 weight %, tertiary sodium phosphate or sodium phosphate trimer 3-8 weight %, sodium carboxymethylcellulose 4-10 weight %, excess water stirs and makes 100 jin, a traditional unit of weight of sand sand suspensions.

Suspending agent can free therein a kind of sodium carboxymethylcellulose, xanthans, Arabic gum, polyvinylpyrrolidone etc., and fineness 100 nanometers-800 of sand micron are according to cutting free nanoscale of needs or micron order.

2, at first junked tire is placed in the rotating shaft, and make junked tire place the high-pressure injection head of hydraulic pressure greater than 180MPa.The distance that the high-pressure injection head is aimed at junked tire is 1-8 centimetre;

As long as 3 control hydraulic pressure well, make junked tire make slow rotation, the junked tire range of speeds is 500-1000 rev/min, the head of high-pressure injection simultaneously, rubber on the junked tire is made powdery and water enters mill rubber milling powder simultaneously in conjunction with the effect that very strong driving force produced of water sand milling cutter, the rubber powder that mill grinds makes the wire in the junked tire separate with rubber through filtering;

4, above-mentioned moisture powder rubber is through filtering, moisture powder rubber is washed with clear water, moisture powder rubber is carried out drying, rubber powder through super-dry sieves, packs, wire is made waste product and is sold, the sand suspension that filters recycles, and powder rubber is used for preparing sand suspension again with the water of clear water flushing.The device of technical scheme of the present invention is realized in the following manner:

For realizing above-mentioned task, sand suspension of the present invention is applied to method and device that the high-pressure injection damaged tire prepares rubber powder and is: 1. body, 2. motor, 3. motor triangle tape wheel, 4. V belt, 5. main shaft, 6. cover clamping bolt in the damaged tire.Junked tire, 8. bearing box, 9. bearing, 10. waste water, rubber powder outlet, 11. tower pulley concial disks, 12. switches, 13. water under high pressure sand interfaces, 14. water sand high-voltage tubes, 15. high-pressure injection heads, 16. water sand milling cuttves, 17. go to the bottom grind box, grind one's teeth in sleep for 18. times, grind one's teeth in sleep on 19. upper millstones, 20., 21. mills prop up tight bolt, cover holder in 22. grind boxes, 23. damaged tires, 24. damaged tire inner rings, 25. tighten up damaged tire tire plate, 26. active card.

Sand suspension of the present invention is applied to method and the device that the high-pressure injection damaged tire prepares rubber powder, it is characterized in that, 2 motors connect 1 body fuselage.2 motor shafts connect 3 belt pulleys., 5 main shafts connect centre bore at the bottom of 1 body (center is empty identical with bearing bore diameter).9 bearings are inserted in 8 bearing dishes.Be inserted in 9 brearing bores 5 main shaft lower ends.Tower belt pulley is inserted in 5 main shaft lower ends.4 V belts are inserted in 3 pulley concial disks and 11 tower pulley concial disks.Main shaft 4 tower pulley concial disks and 5 main shafts tighten up with latch.17 go to the bottom attic base and 1 body back weldings connect.17 go to the bottom and grinding one's teeth in sleep of 18 mills is movable black steel knife.19 mills are inserted in 5 main shafts (upward descending).Being connected 19. grind one's teeth in sleep on the upper millstone and 20 is movable black steel knife.22 grind boxes are connected with 19 upper millstones.Cover is inserted in (from top to down) in 5 main shafts in 23 damaged tires.19 upper millstones are connected with 21 bolt supports with 5 main shafts.23 are inserted in 5 backs connects with 6 bolt supports.The endoporus of 24 junked tires is inserted in and overlaps holder in 23 damaged tires with till being locked.Pack into 8 15 high-pressure nozzles of 14 water sand high-voltage tubes divide 2 row, 4 of every row, and 15 high-pressure nozzles are connected with 1 body side.12 switches connect 15 Pen Tou Wai Silk and tighten up.13 water under high pressure sand joints connect 12 Kai Guan Tou Silk and tighten up.The bolt hole of 26 active card by an inclined to one side end is inserted in bolt and connects inclined to one side hole, center (bolt hole), cover holder upper end in 23 damaged tires.25 tighten up the inclined to one side slotted eye in damaged tire plate center advances after 26 active card 26 active card are forwarded to again and can not make 25 to tighten up till the damaged tire plate skids off.

The present invention compared with prior art has following beneficial effect to be:

1, sand suspension of the present invention is penetrated the mill junked tire compared with prior art, and the rubber powder of have that abrasive dust is quick, output is high, producing has dispersiveness, fineness and once reaches and need standard.

2, compared with prior art, bedroom of the present invention device sand suspension is penetrated mill junked tire metal steel wire and is made rubber powder disposable the separation with junked tire, the junked tire that changes the outfit makes things convenient for, saves time, laborsaving, sand suspension recycles, energy-conservation, small investment, efficient height, non-wastewater discharge, noiselessness, environmental nonpollution.

3, compared with prior art, the sand suspension made of the present invention is grown, do not precipitate standing time, suspension is good.

4, sand suspension injection of separation method of the present invention can not destroyed the steel wire in the tire, and it is low therefore to have processing cost, the labor productivity height, and low energy consumption, low cost, organic efficiency can reach more than 99.9%.Utilize process technology of the present invention can progressively eliminate methods such as mechanical crushing, water jet.

5, sand suspension of the present invention is penetrated abrasive material and also be can be applicable to high-pressure injection and cut various metals, stone material, pottery, glass, timber etc., has applied range, saving equipment, boosts productivity.

6, bedroom of the present invention device structure is simple, easily manufactured, and installed power and floor space be far smaller than Mechanical Method etc., brings considerable economic to enterprise, will create the huge social benefit simultaneously, has to have a extensive future.

Concrete enforcement 1

Below in conjunction with drawings and the specific embodiments is sand suspension of the present invention to be applied to the high-pressure injection damaged tire prepare the method for rubber powder and further specifying of device, rather than limiting the scope of the invention, the technical scheme that modification, replacement or change realized of every other multiple shape of making based on this thought based on preparation sand suspension combinations of injections of the present invention and device interconnection technique all belongs to scope of the present invention.

The present invention is further described

1, the preparation of sand suspension, feedstock composition are sand 3-23 weight %, tertiary sodium phosphate or sodium phosphate trimer 2-6 weight %, sodium carboxymethylcellulose 3-6 weight %, and excess water stirs and makes 100 jin, a traditional unit of weight of sand suspensions.

As long as 3 control hydraulic pressure well, make junked tire make slow rotation, the junked tire range of speeds is 500-1000 rev/min, the head of high-pressure injection simultaneously, the effect that very strong driving force produced in conjunction with water sand milling cutter is made powdery with the rubber on the junked tire, makes the wire in the junked tire in layer form Powdered the separation towards mill with rubber;

4, above-mentioned moisture powder rubber and water enter mill rubber milling powder simultaneously, the rubber powder that mill grinds is through filtering, moisture powder rubber being carried out drying, rubber powder through super-dry sieves, packs, and wire is made waste product and sold, and sand suspension recycles.

Concrete enforcement 2

The present invention is further illustrated below in conjunction with drawings and Examples.

Figure one, overall perspective

Figure two, upper base perspective view

Shown in figure one, figure two. Sand suspension is applied to the method that the high-pressure injection damaged tire prepares rubber powder And device, comprise 1. bodies, 2. motor, 3. motor triangle tape wheel, 4. V belt, 5. main shaft, 6. damaged tire inner sleeve clamping bolt. 7. junked tire, 8. bearing box, 9. bearing, 10. waste water, rubber powder Outlet, 11. tower pulley concial disks, 12. switches, 13. water under high pressure sand interfaces, 14. water sand high-voltage tubes, 15. High-pressure injection head, 16. water sand milling cuttves, 17. go to the bottom grind box, grind one's teeth in sleep for 18. times, mill on 19. upper millstones, 20. Tooth, 21. mills prop up tight bolt, 22. grind boxes, 23. damaged tire inner sleeve holders, 24. damaged tire inner rings, 25. and tighten up Damaged tire tire plate, 26. active card.

2 motors connect 1 body fuselage. 2 motor shafts connect 3 belt pulleys. , 5 main shafts connect at the bottom of 1 body Centre bore (center is empty identical with bearing bore diameter). 9 bearings are inserted in 8 bearing dishes. 9 axles are inserted in 5 main shaft lower ends Hold in the endoporus. Tower belt pulley is inserted in 5 main shaft lower ends. 4 V belts are inserted in 3 pulley concial disks and 11 Tower pulley concial disk. Main shaft 4 tower pulley concial disks and 5 main shafts tighten up with latch. 17 attic bases of going to the bottom Connect with 1 body back welding. 17 go to the bottom and grinding one's teeth in sleep of 18 mills is movable black steel knife. 19 mills are inserted in 5 main shafts (upward descending). Being connected 19. grind one's teeth in sleep on the upper millstone and 20 is movable black steel knife. Mill on 22 grind boxes and 19 Dish connects. 23 damaged tire inner sleeves are inserted in (from top to down) in 5 main shafts. 19 upper millstones and 5 main shafts are used 21 bolt supports connect. 23 are inserted in 5 rear usefulness 6 bolt supports connects. The endoporus of 24 junked tires is inserted in 23 The holder of damaged tire inner sleeve is with till being locked. 14 water sand high-voltage tubes, 8 15 high-pressure nozzles of packing into divide 2 row, every

row

4,15 high-pressure nozzles are connected with 1 body side. 12 switches connect 15 Pen Tou Wai Silk and tighten up. 13 high pressure Water sand joint connects 12 Kai Guan Tou Silk and tightens up. 26 active card are inserted in the bolt connection by the bolt hole of an inclined to one side end Center deviation hole (bolt hole), 23 damaged tire inner sleeve holders upper end. 25 tighten up damaged tire plate center deviation slotted eye advances 26 work Behind the moving card again 26 active card forward to can not make 25 to tighten up the damaged tire plate and skid off till.

Implementation 3

When producing rubber powder, junked tire is contained in the 23 damaged tire inner sleeves, tightens up damaged tire plate center to 25 Partially slotted eye advance after 26 active card again 26 active card forward to can not make 25 to tighten up damaged tire tire plate and skid off till. 13 water under high pressure sand interfaces connect super-pressure sand suspension tank, plug in 180MPa when opening 12 switch Convert the high speed sand suspension in above these multi-jet high-pressure nozzles of super-pressure sand suspension to and spray, its Flow velocity and sand suspension pressure are proportional, when pressure is 190MPa-290MPa, and its sand suspension jet Speed is the flow velocity of 690-9900m/s, and this high speed sand suspension jet has the very big mill power of rushing, and makes height Form high speed water sand milling cutter under the effect of the high speed sand suspension jet that the pressure shower nozzle sprays in high speed nozzle, water The sand milling cutter is made continuous injection abrasive cut-off on the outer circumference surface of junked tire, a time, junked tire cylindrical Rubber on the periphery is got off simultaneously by abrasive cut-off layer by layer, and moisture powder rubber and water enters mill simultaneously The rubber milling powder, junked tire is made the low speed spinning motion in the 23 damaged tire inner sleeves simultaneously, so that spray the abrasive cut-off mistake Journey acts on the whole circumference and limit of junked tire, and the work of this junked tire of abrasive cut-off is finished like this, gets Go out tire 26 active card, remaining steel-wire carcass only in 23 damaged tire inner sleeves will after unloading steel-wire carcass again A junked tire is packed into and can be repeated above process in the 23 damaged tire inner sleeves again. Above-mentioned moisture fiber branch , advance through the rubber powder of super-dry through filtering, moisture powder rubber is carried out drying from, powder rubber water Row screening, packing, fiber and wire are made waste product and are sold.

Claims

With 1, a kind of sand suspension is applied to the method that the high-pressure injection damaged tire prepares rubber powder, it is characterized in that it may further comprise the steps:

(1), the preparation method of sand suspension, feedstock composition sand 1-25 weight %, tertiary sodium phosphate 3-8 weight %, sodium carboxymethylcellulose 4-10 weight %, the excess water sand suspension that stirs.

Suspending agent can free therein a kind of sodium carboxymethylcellulose, xanthans, Arabic gum, polyvinylpyrrolidone, fineness 100 nanometers-800 of sand micron.

(2), at first junked tire is placed in the rotating shaft, and make junked tire place the high-pressure injection head of hydraulic pressure greater than 180MPa.The distance that the high-pressure injection head is aimed at junked tire is 1-8 centimetre;

(3) as long as control hydraulic pressure well, make junked tire make slow rotation, the junked tire range of speeds is 500-900 rev/min, and the head of high-pressure injection is simultaneously made powdery in conjunction with the effect that very strong driving force produced of water sand milling cutter with the rubber on the junked tire, and the wire in the junked tire is separated with rubber;

(4), moisture powder rubber and water enter mill rubber milling powder simultaneously, the rubber powder that mill grinds is through filtering, moisture powder rubber being carried out drying, rubber powder through super-dry sieves, packs, and fiber and wire are made waste product and sold, and sand suspension recycles.
2. sand suspension according to claim 1 is applied to the method that the high-pressure injection damaged tire prepares rubber powder, it is characterized in that, feedstock composition, sand 1-25 weight %, tertiary sodium phosphate 3-8 weight %, sodium carboxymethylcellulose 4-10 weight %, excess water stirs and makes 100 jin, a traditional unit of weight of sand suspensions, and sand suspension also can be applicable to high pressure and cuts various metals, stone material, pottery, glass, timber.
3. sand suspension according to claim 1 is applied to the method that the high-pressure injection damaged tire prepares rubber powder, it is characterized in that, suspending agent can free therein more than one sodium carboxymethylcelluloses, xanthans, Arabic gum, polyvinylpyrrolidone.
4. sand suspension according to claim 1 is applied to the method that the high-pressure injection damaged tire prepares rubber powder, it is characterized in that, and fineness 100 nanometers-800 of sand micron, fineness 100 nanometers-800 of sand micron are according to the free nanoscale of cutting needs, micron order.
5. a sand suspension is applied to method and the device that the high-pressure injection damaged tire prepares rubber powder, it is characterized in that, it comprises that 2 motors connect 1 body fuselage, 2 motor shafts connect 3 belt pulleys, the centre bore center was empty identical with bearing bore diameter at the bottom of 5 main shafts connected 1 body, 9 bearings are inserted in 8 bearing dishes, be inserted in 9 brearing bores 5 main shaft lower ends, tower belt pulley is inserted in 5 main shaft lower ends, 4 V belts are inserted in 3 pulley concial disks and 11 tower pulley concial disks, main shaft 4 tower pulley concial disks and 5 main shafts tighten up with latch, 17 go to the bottom attic base and 1 body back weldings connect, 17 go to the bottom and grinding one's teeth in sleep of 18 mills is movable black steel knife, 19 mills are inserted on 5 main shafts and descend, being connected 19. grind one's teeth in sleep on the upper millstone and 20 is movable black steel knife, 22 grind boxes are connected with 19 upper millstones, cover in 23 damaged tires, be inserted in 5 main shafts from top to down, 19 upper millstones are connected with 21 bolt supports with 5 main shafts, 23 are inserted in 5 backs connects with 6 bolt supports, the endoporus of 24 junked tires is inserted in and overlaps holder in 23 damaged tires with till being locked, pack into 8 15 high-pressure nozzles of 14 water sand high-voltage tubes divide 2 row, 4 of every row, 15 high-pressure nozzles are connected with 1 body side, 12 switches connect 15 Pen Tou Wai Silk and tighten up, 13 water under high pressure sand joints connect 12 Kai Guan Tou Silk and tighten up, the bolt hole of 26 active card by an inclined to one side end is inserted in bolt and connects inclined to one side hole, center, cover holder upper end bolt hole in 23 damaged tires, and 25 tighten up the inclined to one side slotted eye in damaged tire plate center advances after 26 active card 26 active card are forwarded to again and can not make 25 to tighten up till the damaged tire plate skids off.
6. sand suspension according to claim 5 is applied to method and the device that the high-pressure injection damaged tire prepares rubber powder, it is characterized in that, is inserted in 23 damaged tires in 5 main shafts from top to down.
7. sand suspension according to claim 5 is applied to method and the device that the high-pressure injection damaged tire prepares rubber powder, it is characterized in that, junked tire is put into 23 damaged tires covers, 26 active card and forwarded to and can not make 25 to tighten up till the damaged tire plate skids off.
8. sand suspension according to claim 5 is applied to method and the device that the high-pressure injection damaged tire prepares rubber powder, it is characterized in that, pressure is 180MPa-280MPa, and its sand suspension effluxvelocity is the flow velocity of 690-9800m/s.
9. sand suspension according to claim 5 is applied to method and the device that the high-pressure injection damaged tire prepares rubber powder, it is characterized in that, as long as control hydraulic pressure well, make junked tire make slow rotation, the junked tire range of speeds is 500-1000 rev/min, the head of high-pressure injection is simultaneously made powdery in conjunction with the effect that very strong driving force produced of water sand milling cutter with the rubber on the junked tire, makes the wire in the junked tire in layer form Powdered the separation towards mill with rubber.
10. sand suspension according to claim 5 is applied to method and the device that the high-pressure injection damaged tire prepares rubber powder, it is characterized in that, moisture powder rubber and water enter mill rubber milling powder simultaneously, the rubber powder that mill grinds is through filtering, moisture powder rubber being carried out drying, rubber powder through super-dry sieves, packs, fiber and wire are made waste product and are sold, and sand suspension recycles.