CN1005825B - Combined screening and crushing machine for curing garbage - Google Patents
Combined screening and crushing machine for curing garbage Download PDFInfo
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- CN1005825B CN1005825B CN87101104.2A CN87101104A CN1005825B CN 1005825 B CN1005825 B CN 1005825B CN 87101104 A CN87101104 A CN 87101104A CN 1005825 B CN1005825 B CN 1005825B
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- screen
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- sieve
- dusting cover
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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 20
- 238000012216 screening Methods 0.000 title abstract description 21
- 238000004140 cleaning Methods 0.000 claims abstract description 10
- 238000010410 dusting Methods 0.000 claims description 38
- 238000007599 discharging Methods 0.000 claims description 20
- 238000010298 pulverizing process Methods 0.000 claims description 17
- 230000007246 mechanism Effects 0.000 claims description 16
- 239000004744 fabric Substances 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 238000009826 distribution Methods 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
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- 210000003050 axon Anatomy 0.000 claims description 2
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- 238000004519 manufacturing process Methods 0.000 claims 3
- 238000005520 cutting process Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
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- 238000005096 rolling process Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 239000002361 compost Substances 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Crushing And Pulverization Processes (AREA)
Abstract
The invention relates to a combined screening crusher for screening and crushing clinker garbage, which mainly comprises a rack, a cylindrical sieve and a vertical crushing and hole cleaning device, wherein the devices are fixed at different parts of the same rack to continuously screen and crush the clinker garbage, the cylindrical sieve adopts a double-layer structure and is provided with an outer layer of a fine sieve and an inner layer of a coarse sieve, so that a plurality of belt conveyors can be saved, the crushing device has a hammering type or strong type knife rest structure, garbage particles with the particle size of less than 10 mm can be obtained through crushing, the guarantee rate is 85-95%, and the hole cleaning device is arranged on the outer layer of the sieve screen to avoid the hole blocking phenomenon of the fine sieve, so the screening crusher has the advantages of compact, reasonable and reliable structure, small occupied area and low cost.
Description
The present invention relates to solid is separated from solid and fragmental device, particularly sieve and pulverize the ensemble machine of garbage curing.
Usually house refuse forms garbage curing through fermentation process, through screening machine screening back residue on sieve on the dusting cover that filters out is delivered to the fines that pulverizer pulverizes and sieve out and is used as farmland fertilizer, the sub-category again usefulness of remainder in the lump.
Screening plants such as drum sieve, rod sieve, vibratory sieve are mainly used in the screening of garbage curing in prior art.The used screen cloth of these devices all has only one deck, in case selected particle diameter specification can only be sieved the granulated garbage of certain size scope, thereby, as the particle that sieves two kinds of size ranges just need have two and closes screening plant, the corresponding auxiliary equipment such as belt conveyer that also need increase, make screening system seem huge, cause investment big, take up an area of many.The mesh that another ubiquitous problem of screening plant is a fine screen mesh very easily stops up, and often needs the cleaning of stopping, and not only inefficiency, and screening degree is poor.
Double-roll crusher, horizontal beater disintegrating machine are also continued to use in pulverizing for garbage curing now, and often can not reach good crushing effect, so though through pulverizing the agricultural standard that do not reach.
The objective of the invention is to overcome the shortcoming that exists in above-mentioned screening and the disintegrating apparatus, thereby provide a kind of composite screen breaker, this screen breaker adopts double-deck screen cloth drum sieve and vertical crusher, and disposes hole cleaning device on the equipment of screening, not only can obtain particulate compost but also can plug-hole.
Another object of the present invention is to provide the structural configuration of rational screen breaker; Its screening and disintegrating apparatus are installed on the same frame, and the particulate of discharging can transport by same belt conveyor, have compact conformation, reasonable, advantage such as floor space is little, cost is low.
Screen breaker of the present invention mainly by public four frames, a drum sieve device, comprises motor, reduction box system, a pair of travelling gear and a cylinder sieve nest etc., and a vertical crushing plant comprises compositions such as motor, belt gear, pulverizing cylinder.The drum sieve device is positioned on the framework platform, its cylinder sieve nest is the double-layered cylinder sieve nest, have the skin of a dusting cover and the inner layer cylinder shape screen cloth of a scalping, one feed roll of fixedlying connected with cylinder sieve nest right side, a discharging cylinder of fixedlying connected with this sieve nest left side, and the tube hole of tube hole and the cylinder sieve nest inner screen of cylinder axially is communicated with, and the charging and discharging cylinder provides charging aperture that the rubbish grog sieves respectively and the discharging opening of coarse grain rubbish after the scalping in inner screen.And offer the discharging opening of dusting cover clout in the left side of outer screen.Between charging and discharging cylinder and framework platform, be provided with two groups of cylinder sieve nest rotary supporting devices, every group of this device comprises a pair of two wheel holding mechanisms that are installed on the framework platform, they be connected with pure rolling between two backing rings and pair of lamina drum sieve axon to thrust brake, this device comprises that one is fixed on idler mechanism on the framework platform and the skid of discharging cylinder pop-up circle is dynamically connected.Be fixed on the gear ring on the sieve nest and be contained in reduction gearbox output shaft upper transfer gear engaged transmission so that the double-layered cylinder sieve nest rotates.In order to make the grog rubbish that enters from charging aperture progressively descending screening process, the central axis of double-layered cylinder sieve nest is 3-5 ° with the angle of cut that horizontal plane tilts from the charging aperture to the discharging opening on settling.
Reducing mechanism is installed on the crossbeam under the framework platform, its pulverizing cylinder, a rotating shaft and 8-15 hammer slice type or powerful formula knife rest member that is installed on the axle that comprises motor, belt gear, a reducing mechanism has high degradation rate and fraction, said motor is installed on the outer wall of pulverization cylinder, motor reel and pulverizer shaft parallel, can prevent to enter pulverizer like this and grind up the refuse and be bonded in inwall and other junction of pulverizing cylinder.The pulverization cylinder top of said reducing mechanism provides the charging aperture of making the dusting cover clout, and the bottom is for pulverizing the discharging opening of back fines, the corresponding arrangement of outlet of this charging aperture and cylinder sieve nest dusting cover clout in design.Blade in the knife rest member of pulverizer is selected the thick steel matter of 10～25mm for use, for example No. 45 steel or 40Cr guiding principle and through modified heat treatment, has higher intensity and toughness, under drivings such as motor, the rotating shaft of reducing mechanism is rotated with 1440 rev/mins of speed, cooperates can reach the degradation rate higher to the dusting cover clout with above-mentioned blade under such speed.
In addition for to prevent that this screen breaker of plug-hole of cylinder sieve nest upper screen cloth from also having a hole cleaning device, comprise that one is fixed on the framework on the frame, one beaming roller shape brush body, one one end is fixed on the framework back timber, the other end is equipped with the arm that bearing block is installed beaming roller shape brush body, this brush body is positioned at cylinder sieve nest top, the axis parallel of its axial line and cylinder sieve nest, and the bristle of brush body slightly passes the mesh of outer screen.The brush body of hole cleaning device by drum sieve volume surrounding screen cloth to the friction of bristle or stir rotation, the bristle mesh constantly clearing up in the screening process to be blocked up meanwhile.
Drum sieve of the present invention and pulverizer are contained on the same frame, the fines that sifts out by drum sieve volume surrounding screen cloth and all can drop on same the belt conveyor through the fines that pulverizer is pulverized the back discharge, the dusting cover clout is then directly fallen the pulverizer charging aperture, saved middle material to dusting cover, the dusting cover oversize is pulverized the conveyer of back output to pulverizer conveying and dusting cover oversize, compact conformation, reasonable makes the broken processing continuously in very little space of sieve, and equipment cost is taken low.
In conjunction with the accompanying drawings embodiment of the present invention are described in detail now.
Fig. 1 is the structural representation of grog rubbish composite screen breaker;
Fig. 2 is that the screen breaker drum sieve device part A of Fig. 1 is to view;
Fig. 3 is the cutaway view of double-layered cylinder sieve nest in the drum sieve device;
Fig. 4 is the cutaway view that has paddle type mill cutter frame structure vertical crushing plant in the screen breaker;
Fig. 5 is the cutaway view that has powerful formula cutter frame structure vertical crusher device in the screen breaker;
Fig. 6 is that the screen breaker vertical crushing plant part B of Fig. 1 is to view.
See Fig. 1,2 and 3, garbage curing drum sieve device comprises motor 1, reduction box 2, double-layered cylinder sieve nest 3, a pair of travelling gear 4,5, double-layered cylinder sieve nest 3 contains an outer dusting cover screen cloth 6, the aperture 8-12mm of screen cloth mesh, can sieve and obtain thin compost particle diameter 5-10mm, wide-meshed screen 7 in one internal layer, the aperture 35-50mm of screen cloth mesh, material particle diameter 10-40mm during screening obtains.Two outer wall upper annular plates 9,9 that are weldingly fixed on space 8 between skin and the inner screen, inner screen two ends respectively '.Said charging and discharging cylinder 11,12 all have a dusting cover seat ring 10,10 ', this dusting cover seat ring 10,10 ' by bolt respectively with annular slab 9,9 ' fixedly connected, and make that 8 two ends, space surround between skin and the inner screen 6,7, and because the internal diameter of cylinder 11,12 and inner layer cylinder sieve inner screen 7 internal diameters equate that substantially smooth connection is descending to guarantee rubbish constant speed in middle scalping process each other to make a hole.Press close to annular slab 9 in the left side of outer screen 6 and offer of the outlet of annular narrow hole 13 as the dusting cover clout.For make outer screen 6 fix firmly and use in indeformable, on dusting cover seat ring 10,10 ' periphery and outer screen 6 peripheries respectively with bolt and welding fixedly the 8-24 root sieve bar 14.
Double-layered cylinder sieve nest 3 is slowed down by motor, reduction box and travelling gear 4,5 and rotates.One of said travelling gear 5 is ring gears, and it is fixed on feed roll 16 1 ring seats 15 by bolt etc. and makes when mounted that precision can obtain adjusting, and guarantees the engaged transmission performance that it is good with reduction gearbox output shaft upper transfer gear 4 is installed.Double-layered cylinder sieve nest 3 rotary speed after slowing down is 10-20 rev/min.The internal layer diameter of double-layer cylinder screen is φ 1600mm～φ 850mm.
Every group of wheel holding mechanism of said rotary supporting device comprises two support roller assemblies, this support roller assembly comprise two bearing blocks 16,16 ', one and one support roller 17 that is fixed on the axle.The pure rolling of said wheel holding mechanism and backing ring 18 is connected to the interaction between representing of support roller 17 circumferential surfaces and backing ring 18 circumference.The idler mechanism of axially movable thrust brake, comprise that a bearing block 19, is installed in the bearing block multidiameter 20 and axle and goes up fixing idle pulley 21, said sliding-contact connects between the smooth periphery that comprises idle pulley 21 and the backing ring 18 opposite side transverse planes and interacts.
Hole cleaning device comprises and is fixed on framework platform upper frame 22, arm 23, brush body 24 and bristle 29, and there is bearing block 25 arm 23 lower ends.Brush body has cylinder scrubbing brush plate 26, fixed center axis 27 in the middle of it, the general available timber of brush board, metallic plate or pipe are made, bristle 29 is with nylon or steel wire system, the diameter of bristle is 0.4～2mm, it is about 3-4mm that every bunch of bristle diameter is enclosed model, and the tuft distribution density equates with the distribution density in hole extremely greater than 1/3 of pore size distribution density.Bolt adjusting parts 28 also are equipped with at the middle part of said arm 23, comprise different rotation direction double end nuts and two screw rods, so that can regulate exposure level between bristle and the cylinder sieve nest according to the clear hole of different screen cloth mesh needs.
Brush body when mounted, bristle generally slightly passes drum sieve volume surrounding mesh, for example bristle is made of nylon, bristle generally extends through the mesh 1～5mm of outer cylinder screen, thereby this hole cleaning device can be eliminated the plug-hole phenomenon of dusting cover fully.
Vertical crusher according to sieve crushing device of the present invention comprises motor 30, belt gear 31, pulverizes cylindrical shell 32, and Fig. 4 configurable powerful formula or paddle type mill knife rest member on axle are seen in rotating shaft 33, consult Fig. 5 and Fig. 6.
Paddle type mill structure knife rest member comprises that one is disk pulley-like hammer carrier 37 for every group, on its periphery annular groove is arranged, being drilled with two axial pin-and-holes in its disc, to be provided with groove 51 with 180 ° of distributions and limit portion spaced apart with 180 ° of pin-and-holes, and it is that convenient hammer carrier parts are installed that groove 51 purposes are set.Two strip blades 38,38 ' cross section be trapezoidal or parallelogram at right angles, blade is by preceding receding 40～60 °, at the blade rear portion one axis hole is arranged, by two hammer pin 39 packing rings 40 and hex bolts 41 38, the 38 ' activity of two blades is fixed in the groove of hammer carrier 37 respectively.In hammering sheet cutter frame structure adjacent two row's blade right-angled intersections install or from top to bottom isogonism install, every the free end of blade is interspaced apart from being not less than 5mm with pulverizing between the cylinder inner wall.
The reducing mechanism of this form can make the granulated garbage particle diameter less than 10mm to the pulverizing of dusting cover clout, and fraction is up to 85%.
Vertical crusher has conveniently been established a side door 42 for cutter maintenance, in grog rubbish screen breaker for discharging and charging being carried out smoothly and being convenient to device, being provided with one between the pulverizing cylinder charging aperture 43 of dusting cover clout discharging opening 13 and vertical crushing plant is fixed on upper rack dusting cover clout and goes out funnel 44, under fine screen mesh, be equipped with one and be fixed on that dusting cover goes out funnel 45 under the framework platform, the discharging opening that said dusting cover particle goes out funnel 45 and vertical crusher roughly at grade, and very close each other, be beneficial to use same belt conveyor.
Go out to adorn a form charging gear on the funnel at the dusting cover clout, the oversize of dusting cover can be delivered in the vertical crushing plant equably pulverize.The joint materials device comprises that power train unifies motor, a belt gear, a worm and gear, and the form dispenser by transmission system transmissions such as above-mentioned motors, the form dispenser is the circle dish type, it is inboard near on the lower wall to be installed in funnel, available plate radiation is separated into 4-8 lattice, 5-10 rev/min of dispenser rotating speed in it.Even material feeding device is preferably arranged before sieve, in funnel, checker-work can be installed.
The another kind of drum sieve device of the present invention can be placed on the brush body of hole cleaning device between the ectonexine screen cloth, in the installation method of this brush body, except above-mentioned gear drive rolling bearing device and the thrust brake of on the inner screen both sides, connecting, also need to connect one again and overlap same mechanism and device and ectonexine is reversed mutually in the outer screen both sides.
It is good that garbage curing composite screen breaker has compact conformation, screening and a smashing capability.Especially, thin, the middle scalping of drum sieve device is integrated, and again drum sieve device and reducing mechanism are combined on the same frame, can drop on same belt conveyor so that pulverize the fines of back discharge through fines that the drum sieve device sifts out and pulverizer, save the outfeed belt conveyor of pulverizer.The screening of middle coarse fodder and fines can be carried out in double-layer cylinder screen simultaneously, has saved the belt conveyor that middle material enters the fines drum sieve.Can directly enter pulverizer through material in the oversize one after the screening of fines drum sieve, save the belt conveyor that middle material advances pulverizer,, reduce the investment of this screen breaker system owing to reduced 3 of round belt conveyors.So floor space is little, cost is low.
Claims (13)
1, a kind of garbage curing composite screen breaker is mainly by one or four frame, one comprise the cylinder sieve nest (etc.) the drum sieve device, the supporting arrangement that sieve nest rotates, transmission device, the vertical crusher device of one pulverizing cylinder etc. is formed, it is characterized in that the cylinder sieve nest that said drum sieve device is positioned on the platform of frame is the double-layered cylinder sieve nest, it has the skin of a dusting cover and the inner layer cylinder screen cloth of a scalping, the outlet of one dusting cover clout is opened in the left side of outer screen, said reducing mechanism is installed on the crossbeam under the framework platform, pulverize the cylinder top charging aperture is provided, outlet with the dusting cover clout is relative settles for it, the motor of reducing mechanism is installed on the outer wall of pulverizing cylinder, on axle, be fixed with 8-15 group paddle type mill or powerful formula knife rest member in addition, also have a hole cleaning device to comprise that one is fixed on the framework platform upper frame, arm, one is installed in arm bearing block bottom bracket axle shape brush body, it is positioned at cylinder sieve nest top, and the axis parallel of axial line and cylinder sieve nest, and the bristle of brush body slightly passes the mesh of outer screen.
2, screen breaker according to claim 1, it is characterized in that, also have two to be weldingly fixed on space two outside inner screen end wall upper annular plates between the inside and outside screen cloth respectively, saidly advance, the discharging cylinder all has a dusting cover seat ring, input and output material cylinder and drum sieve axon to connection be by dusting cover seat ring and annular slab between bolt link to each other, and each cylindrical shell tube hole internal diameter equates substantially, the annular narrow hole of annular slab is pressed close in the left side that said dusting cover clout discharging opening is an outer screen, fixing 8-24 root sieve bar on the periphery of the outer mesh screen at dusting cover clout discharging opening place and dusting cover seat ring.
3, screen breaker according to claim 1 is characterized in that, the aperture of said inner screen mesh is 35-50mm, and the aperture of outer screen mesh is 8-12mm, and the pore size distribution area is 0.22-0.3 square metre of hole/M.
4, screen breaker according to claim 3, it is characterized in that, said idler mechanism comprises that one is fixed on backing ring left side on the framework platform, its axial line is vertical with drum sieve body axial line and be positioned at the bearing block of drum sieve body vertical plane that axial line is done, one multidiameter and the axle that is installed in the bearing block gone up fixing idle pulley, and said sliding-contact connects the interaction between the relative side transverse plane with backing ring of smooth periphery that comprises idle pulley.
5, according to claim 1 or 2 or 3 or 4 described screen breakers, it is characterized in that said brush body has the cylindrical shape brush board, brush board can be used timber, metal tube or sheet material manufacturing.Bristle is that the diameter of bristle is 0.4-2mm with nylon or steel wire manufacturing, and about every bunch of bristle diameter 3-4mm, the tuft distribution density equates with the distribution density in hole extremely greater than pore size distribution density 1/3.
6, screen breaker according to claim 5 is characterized in that, the nylon manufacturing of said bristle, and it installs net mesh 1～5mm that bristle extends through drum sieve volume surrounding sieve.
7, screen breaker according to claim 6, it is characterized in that, said paddle type mill structure knife rest comprises that one is disk pulley-like hammer carrier for every group, on its periphery annular groove is arranged, be drilled with two axial pin-and-holes on its disc, with 180 ° of distributions, limit portion is provided with two grooves, spaced apart with 180 ° of pin-and-holes, two strip blades, its cross section is trapezoidal or parallelogram at right angles, and blade is by preceding receding 40～60 °, there is an axis hole at the blade rear portion, is fixed in the groove of hammer carrier by activities such as hammer pins.
8, screen breaker according to claim 7, it is characterized in that, adjacent two row's blade right-angled intersections are installed or isogonism installation from top to bottom in the said hammer carrier formula structure knife rest, every the free end of blade and pulverize between the cylinder inner wall institute's distance that interspaces and be not less than 5mm, blade is to make with steel, for example No. 45 steel 40Cr steel.
9, screen breaker according to claim 6, it is characterized in that, every group of blade that comprises a middle tape spool hole of said powerful formula cutter frame structure, one circular retaining cutter piece, one side disc be provided with can the corresponding lap of embedding blade groove, blade cross section is hexagon, and cutting edge is positioned on the longitudinal axis, right-angled intersection or isogonism distribution from top to bottom between adjacent two.
10, screen breaker according to claim 9 is characterized in that, the distance that interspaces between two free ends of blade and the powder powder machine cylinder inner wall is not less than 5mm, and blade is to make with steel, for example No. 45 steel or 40Cr steel.
11, screen breaker according to claim 10, it is characterized in that, the pulverizer of said powerful formula cutter frame structure, under knife rest near near the main shaft the tube reclaiming plate being housed, and being located on the pulverizing cylinder side wall with respect to reclaiming plate of said bottom discharging.
12, according to Claim 8 or 1 described screen breaker, it is characterized in that, between the pulverizing cylinder charging aperture of dusting cover clout discharging opening and vertical crushing plant, be provided with one and be fixed on that the dusting cover clout goes out funnel on the frame, be fixed under the framework platform dusting cover and expect funnel being equipped with one under the dusting cover screen cloth, said dusting cover expects funnel and the vertical crusher discharging opening is roughly also close to each other at grade.
13, screen breaker according to claim 12, it is characterized in that, the dusting cover clout goes out can adorn a form charging gear on the funnel, this device comprises the form dispenser by the transmission system transmission, it is the circle dish type, it is inboard near on the lower wall to be installed in funnel, radial 4～8 lattice that are separated into of its available plate, 5-10 rev/min of joint glassware rotating speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87101104.2A CN1005825B (en) | 1987-09-12 | 1987-09-12 | Combined screening and crushing machine for curing garbage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87101104.2A CN1005825B (en) | 1987-09-12 | 1987-09-12 | Combined screening and crushing machine for curing garbage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1033951A CN1033951A (en) | 1989-07-19 |
| CN1005825B true CN1005825B (en) | 1989-11-22 |
Family
ID=4813186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN87101104.2A Expired CN1005825B (en) | 1987-09-12 | 1987-09-12 | Combined screening and crushing machine for curing garbage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1005825B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301807C (en) * | 2004-08-06 | 2007-02-28 | 北京厨房设备集团公司 | Domestic refuse sorting and treating system and treating process thereof |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100384550C (en) * | 2006-06-07 | 2008-04-30 | 同济大学 | Gradient screening method for domestic garbage |
| CN103878048B (en) * | 2014-04-09 | 2016-01-13 | 陕西三沅重工发展股份有限公司 | Combine screening and separator and method |
| CN114682793B (en) * | 2022-04-02 | 2023-05-30 | 安徽筑梦三维智能制造研究院有限公司 | Processing method based on 3D printing titanium alloy product |
-
1987
- 1987-09-12 CN CN87101104.2A patent/CN1005825B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301807C (en) * | 2004-08-06 | 2007-02-28 | 北京厨房设备集团公司 | Domestic refuse sorting and treating system and treating process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1033951A (en) | 1989-07-19 |
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