CN101380608A - Wet grinding device - Google Patents
Wet grinding device Download PDFInfo
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- CN101380608A CN101380608A CNA2007100769127A CN200710076912A CN101380608A CN 101380608 A CN101380608 A CN 101380608A CN A2007100769127 A CNA2007100769127 A CN A2007100769127A CN 200710076912 A CN200710076912 A CN 200710076912A CN 101380608 A CN101380608 A CN 101380608A
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Abstract
The invention provides grinding equipment by a wet method, which comprises a frame, a cylindrical grinding cavity and an impeller cavity in the frame, a rotating shaft passing through the grinding cavity and the impeller cavity, a belt pulley on one end of the rotating shaft and an impeller in the impeller cavity, wherein, a plurality of stationery knifes parallel to the rotating shaft are arranged on the wall of the grinding cavity; a plurality of knife rests are sheathed on the rotating shaft side by side in the grinding cavity; each knife rest comprises a sleeve in the center and a plurality of tool shanks distributed from the periphery of the sleeve in a star shape; the end part of each tool shank is provided with a strip grinding knife parallel to the rotating shaft; a clearance between each grinding knife and the wall of the grinding cavity is gradually reduced from the direction of a feed port to the direction of a discharge port; the frame is provided with a water injection hole communicating with the grinding cavity; and a moving sealing device is arranged between the inner end of a bearing support and a bearing arranged in the bearing support. The equipment grinds cracked waste circuit boards to proper granularity by adopting a grading wet method, has the advantages of reliable operation, long service life and small environmental pollution, and is beneficial to the acceleration of industrialization process of waste circuit board recovery processing.
Description
Technical field
The present invention relates to a kind of wet grinding device, especially be specifically designed to the milling apparatus of wet grinding waste and old circuit board.
Background technology
At present, at waste and old circuit board, processing method commonly used comprises that pyrogenic process reclaims, and hydrometallurgic recovery and machinery reclaim.Wherein, the burning process during pyrogenic process reclaims can produce pernicious gases such as dioxin, and environment is caused serious pollution, if take safeguard measure then to cost dearly.Hydrometallurgic recovery adopts sulfuric acid as medium, utilizes the electrolysis means to reclaim metal, but can produce a large amount of waste liquids, processing cost height in removal process.The machinery absorption method is utilized Mechanical Crushing, and the cycling and reutilization that means such as separation realize waste and old circuit board pollutes little.At present domesticly just is greatly developing mechanical absorption method and handle waste and old circuit board, but old circuit board is the mixture of glass fiber-reinforced resin and multiple metal that intensity is big, hardness is high, among the machinery recycling special equipment of its correspondence is developing.
Summary of the invention
In order newly to ward off the recovery approach of a waste and old circuit board, thoroughly change the environmental pollution that present recovery method causes, the invention provides a kind of special sharpener that is used for the wet grinding waste and old circuit board.
Wet grinding device of the present invention comprises the casing that has charging aperture and discharging opening, comprise cylindric grinding chamber and the impeller cavity that is positioned at this grinding chamber one end and is communicated with in the described casing with this grinding chamber and discharging opening, rotating shaft runs through this grinding chamber and impeller cavity and is supported on the bearing block at casing two ends along the center line of described cylindric grinding chamber, this rotating shaft one end stretches out casing and installs belt pulley, in the inherent described rotating shaft of impeller cavity impeller is installed; Described grinding chamber chamber wall is provided with the stationary knife of some and described shaft parallel, some knife rests of suit side by side in the inherent described rotating shaft of grinding chamber, the sleeve that each knife rest contains the center with from the vertical outward extending some handle of a knifes that star distributes that are of sleeve periphery, each handle of a knife end is installed a strip with described shaft parallel and is ground cutter, to the discharging opening direction, each gap of grinding between cutter and the grinding chamber chamber wall reduces gradually from charging aperture; Described casing is provided with the water injection hole that is communicated with grinding chamber, establishes dynamic sealing device between the bearing of the inner of described bearing block and its interior dress.
Further, above-mentioned dynamic sealing device contains decides cover and moving cover, fixed cover is installed in the described rotating shaft, moving cover is placed between the inner of deciding cover and bearing block in the rotating shaft and can endwisely slips along rotating shaft, establish O type circle between moving cover and the rotating shaft, moving cover one end is provided with and is used for and the inner contacted hard alloy layer of described bearing block, between moving cover and the fixed cover moving cover radial location device and elastomeric element is set, and this elastomeric element is used to provide makes cover along the pressure of rotating shaft to the inner slip of described bearing block.Moving cover and fixed cover are followed rotating shaft and are rotated together, and moving cover closely contacts the formation movable sealing with the end face of bearing block under the effect of elastomeric element.
Further, can establish annular cooling chamber in the periphery of bearing chamber on above-mentioned bearing block, annular cooling chamber is provided with two water injection holes.Can in this annular cooling chamber, circulate by water injection hole and inject cooling water,, improve their service life to reduce the rub heat of generation of heat that rotating shaft and bearing friction produce and sealing device and bearing block.
Above-mentioned grinding cutter adopts the brazing carbide alloy to grind cutter.
The present invention also provides a kind of dynamic sealing device that is used to prevent the bearing water inlet, and this dynamic sealing device comprises, and deciding cover and moving cover, be loaded on O type circle in the moving cover, be located at the moving cover radial location device between moving cover and the fixed cover and be used to provide cover is endwisely slipped and bearing block is inner keeps the tight elastomeric element that contacts along rotating shaft in the rotating shaft of bearing place is provided; Described moving cover radial location device comprises a ring flange, and the both ends of ring flange all are provided with some alignment pins, and the alignment pin at ring flange both ends cooperates with the moving locating hole that overlaps and overlap surely the end respectively; Described elastomeric element is some springs, and they are placed in respectively on some alignment pins of deciding between cover and the ring flange; Described moving cover is that Hardmetal materials is made with the inner part that closely contacts of bearing block.
The present invention has following beneficial effect:
Utilize the grinding cutter that brazing technology is welded and the cutter structure of innovation owing to adopted, variation by gap between stationary knife and the grinding cutter, the broken waste and old circuit board of classification wet grinding has improved the service life of wet grinding cutter to suitable particle size, has reduced cost.
Adopt wet grinding, allow water enter grinding chamber and participate in grinding, can reduce temperature of charge in the chamber, eliminate dust, thereby can at utmost reduce the discharging of pernicious gas and dust.
The dynamic sealing device that employing is made by carbide alloy, wear-resisting, and when wearing and tearing took place its end face, the spring in the sealing device will promote moving cover front end face and bearing block continues to form seamless movable sealing, can effectively guarantee the sealing of bearing and entire machine, prevent the bearing water inlet.Simultaneously on bearing block, introduced water circulation system, can reduce the temperature of moving component effectively, guaranteed that machine normally moves.
This waste and old circuit board wet grinding device reliable operation, long service life, environment does not have and dyes for a short time, helps accelerating the industrialization process of waste and old circuit board recycling.
Description of drawings
Fig. 1 is the structural representation of exemplary embodiments wet grinding device:
Fig. 2 is its side view;
Fig. 3 is its vertical view;
Fig. 4 is the structural representation of its sealing device;
Fig. 5 is the end view of sealing device.
The specific embodiment
Present device is a kind of wet grinding vortex equipment, can be used to contain the grinding of materials such as glass fibre, resin, grinds as waste and old circuit board and reclaims special use etc.It utilizes the different of gap between grinding cutter and the stationary knife on the different knife rests, realizes classified grinding, and water is introduced grinding chamber participates in grinding by water, to reduce temperature of charge in the chamber, eliminates dust, eliminates the discharging of waste gas, dust.It has also introduced water circulation system to improve the service life of bearing.And, designed distinctive dynamic sealing device at this wet grinding device.Further specify below in conjunction with accompanying drawing.
With reference to Fig. 1-3, this wet grinding device comprises the casing 5 that has charging aperture 4 and discharging opening 12, comprise cylindric grinding chamber 6 and the impeller cavity 13 that is positioned at this grinding chamber one end and is communicated with in the described casing 5 with this grinding chamber and discharging opening, rotating shaft 23 runs through this grinding chamber 6 and impeller cavity 13 and is supported on the bearing block 3 and 16 at casing two ends along the center line of described cylindric grinding chamber 6, these rotating shaft 23 1 ends stretch out casing and install belt pulley 21, and impeller 14 is installed in the impeller cavity 13 inherent described rotating shafts 23; Described grinding chamber 6 chamber walls are provided with the parallel stationary knife 11 of some and described rotating shaft 23, some knife rests 9 of suit side by side in the grinding chamber 6 inherent described rotating shafts 23, the sleeve that each knife rest contains the center with from the vertical outward extending some handle of a knifes that star distributes that are of sleeve periphery, a strip grinding cutter 8 parallel with described rotating shaft 23 is installed in each handle of a knife end, along charging aperture to the discharging opening direction, each gap of grinding between cutter 8 and the grinding chamber 6 chamber walls reduces gradually, described casing is provided with the water injection hole 25 that is communicated with grinding chamber 6, establish dynamic sealing device 26 between the right part of the bearing 2 of bearing block 3 and its interior dress, establish dynamic sealing device 22 between the left part of the bearing 19 of bearing block 16 and its interior dress.Mark 1 and 20 is depicted as bearing cap among the figure, and mark 7 is depicted as cutter hub just.
With reference to Fig. 1, Fig. 4, Fig. 5, dynamic sealing device 22 and 26 contains decides cover 30 and moving cover 34, surely overlapping 30 is installed in the described rotating shaft 23, moving cover 34 be placed in overlap surely in the rotating shaft 23 30 and the inner of bearing block between and can endwisely slip along rotating shaft 23, establish O type circle 37 between moving cover 34 and the rotating shaft 23 and infiltrate bearing along rotating shaft to prevent a spot of water, moving cover 34 outer ends are provided with and are used for and the inner contacted hard alloy layer 35 of described bearing block, corresponding bearing block the inner is provided with the hard alloy layer 36 that cooperates with the hard alloy layer 35 of moving cover 34 outer ends, between moving cover 34 and overlapping 30 surely moving cover radial location device 33 and elastomeric element 32 are set, this elastomeric element 32 is used to provide the pressure that cover 34 is slided to described bearing block the inner along rotating shaft 23.Described moving cover radial location device 33 comprises a ring flange, and the both ends of ring flange all are provided with some alignment pins, and the alignment pin at ring flange both ends cooperates with moving cover 34 and the locating hole that overlaps 30 ends surely respectively; Described elastomeric element 32 is some springs, and they are placed in respectively on some alignment pins of deciding between cover 30 and the ring flange.Moving cover 34 and overlap 30 surely by moving cover radial location device 33 location overlaps 30 surely and is anchored in the rotating shaft 23 by the locating pin 31 that is installed in the axial location hole, makes to overlap 34 and overlap 30 surely and can rotate with rotating shaft 23.Under the effect of spring 32, the hard alloy layer 35 of moving cover 34 ends and the hard alloy layer 36 of bearing block the inner closely contact and form movable sealing, when contact surface abrasion,, the moving cover 34 of the effect of spring 32 make its front end face 35 and the end face 36 of bearing block continue to form seamless movable sealing because endwisely slipping.Be provided with O type circle 37 in moving cover 34 inside simultaneously and prevent that a spot of water from infiltrating bearing along axle.
In the present embodiment, the hard alloy layer 35 of moving cover 34 outer ends is the bulge loops (seeing Fig. 4, Fig. 5) that protrude moving cover 34 outer faces, and bearing block the inner is provided with and the suitable cavity of the bulge loop 35 of moving cover 34, and the top layer of cavity is hard alloy layer 36 (see figure 4)s.
For the effective heat of rotating shaft and bearing friction generation and heat of sealing device and bearing block friction generation of reducing, guarantee the normal operation of machine, introduced water circulation system, with reference to Fig. 1, periphery in the bearing chamber on the right bearing seat 16 is provided with annular cooling chamber 18, and annular cooling chamber 18 is provided with two water injection holes 17,24.Also be provided with cooling chamber and water injection hole on the same left shaft holder 3.Inject cooling water by circulating in the cooling chamber of water injection hole on bearing block, the formation water circulation system improves their service life with the heat of reduction rotating shaft and bearing friction generation and the heat of sealing device and bearing block friction generation.Also cooling chamber shown in 24 ' and 26 ' among Fig. 1.
With reference to Fig. 1, the water injection hole 25 that is communicated with grinding chamber 6 on the casing is arranged at charging aperture 4 one ends, by this water injection hole 25 to grinding chamber 6 water fillings, make water participate in grinding, reduce temperature of charge in the chamber, eliminate dust, at utmost reduced the harm of pernicious gas and dust.
Some knife rests 9 are set in the rotating shaft 23 side by side, utilize the clamp nut and the shaft shoulder that all knife rests 9 are locked in this rotating shaft, between adjacent two knife rests baffle plate 10 are set, so that axial changing of the relative positions situation can not appear in knife rest 9.Grind the end that cutter 8 is installed in handle of a knife on the knife rest 9.Described rotating shaft 23 can be made flat axle or splined shaft, combine with the sleeve of knife rest 9 that drive knife rest 9 rotates synchronously when making the rotating shaft rotation.
Above-mentioned grinding cutter 8 is that the brazing carbide alloy grinds cutter, it be utilize brazing technology in the surface coverage of grinding cutter one deck carbide alloy.Equally, stationary knife 11 also adopts the brazing hard alloy cutter.Certainly, described grinding cutter and stationary knife also can adopt the cutter of all being made by Hardmetal materials.
Among Fig. 2 and Fig. 3,27 is the supporting motor of using, and motor 27 rotates by the belt pulley 21 that belt 28 drives this milling apparatus, makes rotating shaft 23 rotations, drives and grinds cutter 8 rotations, cooperates with the stationary knife 11 of grinding chamber wall, grinds broken material to suitable particle size.Material and water after the suction that impeller 14 rotations produce will grind discharge by discharging opening 12.
The present invention also provides a kind of dynamic sealing device that is used to prevent the bearing water inlet, with reference to Fig. 4, Fig. 5, this dynamic sealing device comprises, and deciding cover 30 and moving cover 34, be loaded on O type circle 37 in the moving cover 34, be located at moving cover 34 and overlap the moving cover radial location device 33 between 30 surely and be used to provide cover 34 is endwisely slipped and bearing block 16 is inner keeps the tight elastomeric element 32 that contacts along rotating shaft 23 in the bearing 19 place rotating shafts 23 is provided; Described moving cover radial location device 33 comprises a ring flange, and the both ends of ring flange all are provided with some alignment pins, and the alignment pin at ring flange both ends cooperates with moving cover 34 and the locating hole that overlaps 30 ends surely respectively; Described elastomeric element 32 is some springs, and they are placed in respectively on some alignment pins of deciding between cover 30 and the ring flange; Described moving cover 34 is made for Hardmetal materials with the bearing block 16 inner parts 35 that closely contact.During use, moving cover 34 and overlap 30 surely by moving cover radial location device 33 location overlaps 30 surely and is anchored in the rotating shaft 23 by the locating pin 31 that is installed in its axial location hole, makes to overlap 34 and overlap 30 surely and can rotate with rotating shaft 23.Under the effect of spring 32, the hard alloy layer 35 of moving cover 34 ends and the hard alloy layer 36 of bearing block 16 the inners closely contact and form movable sealing, when contact surface abrasion,, the moving cover 34 of the effect of spring 32 make its front end face 35 and the end face 36 of bearing block continue to form seamless movable sealing because endwisely slipping.O type circle 37 in moving cover 34 inside can prevent that a spot of water from infiltrating bearing along axle simultaneously.
Claims (8)
1, a kind of wet grinding device, comprise the casing that has charging aperture and discharging opening, it is characterized in that: comprise cylindric grinding chamber and the impeller cavity that is positioned at this grinding chamber one end and is communicated with in the described casing with this grinding chamber and discharging opening, rotating shaft runs through this grinding chamber and impeller cavity and is supported on the bearing block at casing two ends along the center line of described cylindric grinding chamber, this rotating shaft one end stretches out casing and installs belt pulley, in the inherent described rotating shaft of impeller cavity impeller is installed; Described grinding chamber chamber wall is provided with the stationary knife of some and described shaft parallel, some knife rests of suit side by side in the inherent described rotating shaft of grinding chamber, the sleeve that each knife rest contains the center with from the vertical outward extending some handle of a knifes that star distributes that are of sleeve periphery, each handle of a knife end is installed a strip with described shaft parallel and is ground cutter, to the discharging opening direction, each gap of grinding between cutter and the grinding chamber chamber wall reduces gradually from charging aperture; Described casing is provided with the water injection hole that is communicated with grinding chamber, establishes dynamic sealing device between the bearing of the inner of described bearing block and its interior dress.
2, wet grinding device according to claim 1, it is characterized in that: described dynamic sealing device contains decides cover and moving cover, fixed cover is installed in the described rotating shaft, moving cover is placed between the inner of deciding cover and bearing block in the rotating shaft and can endwisely slips along rotating shaft, establish O type circle between moving cover and the rotating shaft, moving cover one end is provided with and is used for and the inner contacted hard alloy layer of described bearing block, between moving cover and fixed the overlapping moving cover radial location device and elastomeric element are set, this elastomeric element is used to provide makes cover along the pressure of rotating shaft to the inner slip of described bearing block.
3, wet grinding device according to claim 2, it is characterized in that: described moving cover radial location device comprises a ring flange, the both ends of ring flange all are provided with some alignment pins, and the alignment pin at ring flange both ends cooperates with the moving locating hole that overlaps and overlap surely the end respectively; Described elastomeric element is some springs, and they are placed in respectively on some alignment pins of deciding between cover and the ring flange.
4, according to claim 2 or 3 described wet grinding devices, it is characterized in that: the periphery in the bearing chamber on the described bearing block is provided with annular cooling chamber, and annular cooling chamber is provided with water injection hole.
5, wet grinding device according to claim 1, it is characterized in that: the water injection hole that is communicated with grinding chamber on the described casing is arranged at charging aperture one end, to the grinding chamber water filling, makes water participate in grinding by this water injection hole, reduce temperature of charge in the chamber, eliminate dust.
6, wet grinding device according to claim 1 is characterized in that: between adjacent two knife rests baffle plate is set in the described rotating shaft.
7, wet grinding device according to claim 1 is characterized in that: described grinding cutter is that the brazing carbide alloy grinds cutter.
8, a kind of dynamic sealing device that is used to prevent the bearing water inlet is characterized in that: this dynamic sealing device comprises, and deciding cover and moving cover, be loaded on 0 type circle in the moving cover, be located at the moving cover radial location device between moving cover and the fixed cover and be used to provide cover is endwisely slipped and bearing block is inner keeps the tight elastomeric element that contacts along rotating shaft in the rotating shaft of bearing place is provided; Described moving cover radial location device comprises a ring flange, and the both ends of ring flange all are provided with some alignment pins, and the alignment pin at ring flange both ends cooperates with the moving locating hole that overlaps and overlap surely the end respectively; Described elastomeric element is some springs, and they are placed in respectively on some alignment pins of deciding between cover and the ring flange; Described moving cover is that Hardmetal materials is made with the inner part that closely contacts of bearing block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710076912A CN101380608B (en) | 2007-09-05 | 2007-09-05 | Wet grinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710076912A CN101380608B (en) | 2007-09-05 | 2007-09-05 | Wet grinding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101380608A true CN101380608A (en) | 2009-03-11 |
| CN101380608B CN101380608B (en) | 2010-05-26 |
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ID=40460760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710076912A Expired - Fee Related CN101380608B (en) | 2007-09-05 | 2007-09-05 | Wet grinding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101380608B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103372487A (en) * | 2012-11-23 | 2013-10-30 | 无锡众望四维科技有限公司 | Smashing device for manufacturing amino molding plastic |
| CN103372488A (en) * | 2012-11-23 | 2013-10-30 | 无锡众望四维科技有限公司 | Grinder |
| CN103372489A (en) * | 2012-11-23 | 2013-10-30 | 无锡众望四维科技有限公司 | Knife rest structure of crusher |
| CN103372486A (en) * | 2012-11-23 | 2013-10-30 | 无锡众望四维科技有限公司 | Grinder |
| CN103381383A (en) * | 2012-11-23 | 2013-11-06 | 无锡众望四维科技有限公司 | Pulverizer |
| CN103381382A (en) * | 2012-11-23 | 2013-11-06 | 无锡众望四维科技有限公司 | Pulverizer |
| CN104959201A (en) * | 2015-07-22 | 2015-10-07 | 江阴市东仁机械有限公司 | Wet-method grinding machine |
| CN106999940A (en) * | 2014-12-04 | 2017-08-01 | 安德里特斯公开股份有限公司 | The method for reclaiming valuable material for handling electric member and electronic component |
| CN108620202A (en) * | 2018-03-28 | 2018-10-09 | 国投新疆罗布泊钾盐有限责任公司 | Mini pulverizer |
| CN108855435A (en) * | 2018-07-20 | 2018-11-23 | 南通富莱克流体装备有限公司 | Shearing macerator pump |
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| CN85101501B (en) * | 1985-04-01 | 1988-09-28 | 黄永泉 | Adjustable revolution axis sealing device |
| CN1229008A (en) * | 1998-03-12 | 1999-09-22 | 王文彬 | Method for retrieving valuable material from printed circuit board |
| CN1120053C (en) * | 1999-03-10 | 2003-09-03 | 沈志刚 | Process for breaking, separating and recovering waste printed circuit board and apparatus thereof |
| KR20010035134A (en) * | 2000-12-30 | 2001-05-07 | 김대헌 | crusher |
| CN2553891Y (en) * | 2002-05-13 | 2003-06-04 | 林华天 | Flexible sheet disintegrating machine |
| CN1167817C (en) * | 2002-06-21 | 2004-09-22 | 清华大学 | Process for recovering metal and non-metal materials from copper enriched electronic waste |
| CN2680356Y (en) * | 2004-03-15 | 2005-02-23 | 赵毅 | Waste rubber crusher |
| CN2787305Y (en) * | 2005-05-24 | 2006-06-14 | 濮阳市长红照明器材有限公司 | Pelletizer with six group blades smashing light metal |
| CN1844678A (en) * | 2006-04-05 | 2006-10-11 | 丛铭 | Single-stage horizontal automatic-balancing centrifugal seal pump device |
| CN1947847A (en) * | 2006-10-26 | 2007-04-18 | 江博新 | Method for recovering metals resources from waste electronic circuit board |
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- 2007-09-05 CN CN200710076912A patent/CN101380608B/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103372487A (en) * | 2012-11-23 | 2013-10-30 | 无锡众望四维科技有限公司 | Smashing device for manufacturing amino molding plastic |
| CN103372488A (en) * | 2012-11-23 | 2013-10-30 | 无锡众望四维科技有限公司 | Grinder |
| CN103372489A (en) * | 2012-11-23 | 2013-10-30 | 无锡众望四维科技有限公司 | Knife rest structure of crusher |
| CN103372486A (en) * | 2012-11-23 | 2013-10-30 | 无锡众望四维科技有限公司 | Grinder |
| CN103381383A (en) * | 2012-11-23 | 2013-11-06 | 无锡众望四维科技有限公司 | Pulverizer |
| CN103381382A (en) * | 2012-11-23 | 2013-11-06 | 无锡众望四维科技有限公司 | Pulverizer |
| CN106999940A (en) * | 2014-12-04 | 2017-08-01 | 安德里特斯公开股份有限公司 | The method for reclaiming valuable material for handling electric member and electronic component |
| CN106999940B (en) * | 2014-12-04 | 2020-04-07 | 安德里特斯公开股份有限公司 | Method for processing electrical and electronic components for the recovery of valuable materials |
| CN104959201A (en) * | 2015-07-22 | 2015-10-07 | 江阴市东仁机械有限公司 | Wet-method grinding machine |
| CN108620202A (en) * | 2018-03-28 | 2018-10-09 | 国投新疆罗布泊钾盐有限责任公司 | Mini pulverizer |
| CN108855435A (en) * | 2018-07-20 | 2018-11-23 | 南通富莱克流体装备有限公司 | Shearing macerator pump |
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| CN101380608B (en) | 2010-05-26 |
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