CN108636753A - Stale household garbage pre-screening device and method - Google Patents
Stale household garbage pre-screening device and method Download PDFInfo
- Publication number
- CN108636753A CN108636753A CN201810298670.4A CN201810298670A CN108636753A CN 108636753 A CN108636753 A CN 108636753A CN 201810298670 A CN201810298670 A CN 201810298670A CN 108636753 A CN108636753 A CN 108636753A
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- rod
- gate
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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 34
- 238000012216 screening Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 30
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 20
- 239000011707 mineral Substances 0.000 claims description 20
- 239000002699 waste material Substances 0.000 claims description 20
- 230000032683 aging Effects 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 6
- 210000001364 upper extremity Anatomy 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 238000007873 sieving Methods 0.000 claims description 4
- 238000011282 treatment Methods 0.000 abstract description 6
- 230000005611 electricity Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/12—Apparatus having only parallel elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/02—Fastening means for fastening screens to their frames which do not stretch or sag the screening surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a stale domestic garbage pre-screening device and a stale domestic garbage pre-screening method, which comprise the following steps: digging out the stale refuse from a digging operation surface, and transporting the stale refuse to a treatment workshop; putting the aged garbage into a raw material conveying device, and continuously feeding; conveying the stale garbage to a gate-shaped bar screen, screening the garbage through vibration of the bar screen, and conveying the sorted garbage to respective collecting devices through a sorting conveying device. The invention has the advantages that: the door-shaped bar has stable structure, is not easy to bend, and is not easy to slide off materials; the distance between the bars can be adjusted at any time according to the requirement, so that the garbage with different specifications can be screened; soft and easily-wound materials and large hard materials in the garbage can be well screened out, and the pressure of subsequent treatment facilities is reduced; compared with the conventional crushing, large-piece removing and other equipment, the treatment efficiency is increased by 50 percent, and the electricity consumption is saved by 60 percent; the probability of material blockage of equipment is reduced, the wear rate of the equipment is low, and the frequency of maintenance is reduced; the selectivity of the treatment equipment for the three types of materials screened is increased.
Description
Technical field
The invention belongs to field of garbage disposal, and in particular to a kind of mineral and municipal waste pre-screening device and method.
Background technology
China gradually starts to dispose as urban garbage disposal using land-fill method since the 1970s
Method.But with the annual increase of quantity of refuse, and a large amount of refuse landfills or are i.e. up to saturation state so that anxious
Contradiction between the quantity of refuse that speed increases and land resource is increasingly prominent out.Therefore the aging life to refuse landfill is needed
Rubbish is handled, and refuse landfill landfill space is changed to rise.
Dystopy resettlement, improvement two ways in situ are mainly used for the processing of mineral and municipal waste at present.In view of aging
The environment of rubbish influences, and most household refuse landfill sites integrated treatments disposes skill in screening strange land in situ using storage rubbish
Art.But there are following some technical problems in the screening process of current mineral and municipal waste：（1）Traditional pre-screening device is mainly broken
Broken machine and big part rejecting machine, there are pre-screening effect is bad, the problems such as easy putty；（2）The existing cylindrical rod of bar screen sampling,
Too long otherwise easy bending can not be extended, equipment attrition is big, influences screening effect and efficiency；（3）Rod spacing is fixed from reality
The screening of existing different type rubbish；（4）Flexible material easily slides on round bar screen, causes soft easily winding material, bulk
Hard ware material is difficult to detach；（5）Rubbish pretreatment amount is small.
Invention content
To overcome above-mentioned technical problem, the present invention provides a kind of rod is not pliable, different type sieving garbage is realized,
Soft easily winding material, bulk hard ware material are segregative for the pretreated pre-sifted separating device of mineral and municipal waste and side
Method.
In order to achieve the above objectives, the present invention is achieved by the following technical solutions.
A kind of mineral and municipal waste pre-sifted separating device, including raw material conveying device, screening plant, sorting conveying device and
Collection device；The screening plant is gate bar screen, including gate rod, rod card slot, vibrating grid, vibrator, slips flitch,
Discharge port and deflector chute；The overall structure for the class gate that gate rod is made of the support of two rods and rod beam, rod beam be by
Material screen face；Vibrating grid is rectangular frame, and slant setting, both sides are equipped with the baffle higher than bar screen surface；If being provided on vibrating grid
Dry group rod card slot, rod support are fixed on rod card slot, the gate that forms a whole rod screen frames；Bar screen supports height
40~100cm；The higher one end of gate bar screen is feed zone, and feed zone slips flitch equipped with inclined first, and first slips flitch
Lowest point is placed in above compass screen surface；Discharge port is equipped with below vibrating grid, discharge port bottom is equipped with deflector chute；Raw material conveying device and
One slips flitch cooperation, deflector chute lower part setting sorting conveying device, and sorting conveying device coordinates with collection device.The door of the design
Type rod is the entirety of rectangular-shaped gate, and rod section is wider, and intensity is high, and energy degree is made longer compass screen surface, improves screening
Efficiency.
Further the rod beam installation direction is parallel with supports for material down-sliding direction, the spacing between each gate rod be 2 ~
15cm。
It is further both provided with the mounting hole of same apertures on rod support and rod card slot, passes through spiral shell therebetween
Bolt is connected and fixed.Make installation, dismounting, easy to adjust easy.
It is further described that the wide module of several pieces of tune is equipped in rod card slot, adjust wide module to be equipped with identical as rod card slot
The mounting hole in aperture adjusts wide module to be located between rod support end and rod card slot, adjust the thickness of wide module for 1 cm, 2 cm,
Tri- kinds of specifications of 3cm.By adding the tune width module of different number, realize that the spacing adjustment between each gate rod, adaptability increase
By force.
Further the contact surface between the wide module of the gate rod, tune and rod card slot is coarse rubbing surface.With
Friction between reinforcement and stability are not easy to loosen in high-intensity oscillation.
Further the gate rod is equipped with two groups, and level-one gate rod group and two level are followed successively by by supports for material down-sliding direction
Gate rod group, two level gate rod is lower 40 ~ 60cm than the height of level-one gate rod and equal length, level-one gate rod group
It is 50cm with two level gate rod group spacing, is slipped equipped with inclined second between level-one gate rod group and two level gate rod group
Flitch, second slips the upper limb of flitch away from level-one gate rod 5 ~ 10cm of group end, and is less than level-one rod group compass screen surface 50cm, the
Two lower edges for slipping flitch are located on the compass screen surface of two level gate rod group front end；Spacing between each rod of level-one gate rod group is 2 ~
6cm, the spacing between each rod of two level gate rod group are 6 ~ 15cm, in level-one gate rod group, two level gate rod group, the
Two slip and are equipped with discharge port and deflector chute under flitch, and each deflector chute has conveyer belt.Size is smaller, be not easy the material of bridging by
Under level-one gate rod group sieve, soft easily winding material slips the gap between flitch by level-one gate rod group and second and falls,
Size is larger, quality is harder, and the material for being not easy bridging falls to second and slips flitch, then passes to two level gate rod group sieve
Under.
Further the top surface of the rod beam is plane, the wide 2 ~ 8cm in cross section.Flexible material is solved in circular rod
The problem of easily being slid on bar grizzl(e)y.
A kind of mineral and municipal waste pre-screening method is further additionally provided, is included the following steps：
（1）Aging rubbish is excavated from digging operation face, transport to processing workshop；
（2）By aging rubbish charging feedstock conveying device, continuous feed；
（3）Aging rubbish is delivered to gate bar screen, by the vibration realizing sieving garbage of bar screen, rubbish after sorting by
Sorting conveying device is sent to respective collection device.
The further step（2）Middle raw material conveying device is apron feeder, vibrating feed sieve, and feedstock transportation is thick
Degree is 10 ~ 30cm, and conveying speed is 0.1 ~ 0.25m/s.
Step described further（3）Spacing between each rod of middle level-one gate rod group is 2 ~ 6cm, two level gate stick group
Spacing between each rod item is 6 ~ 15cm, and two level gate rod group is lower 40 ~ 60cm than the height of level-one gate rod group and length
Spend equal, second slips the upper limb of flitch away from level-one gate rod 5 ~ 10cm of group end, and is less than level-one rod group compass screen surface 50cm, shakes
The vibration frequency of dynamic sieve is 800 ~ 950r/min, and supports for material down-sliding speed is maintained at 0.1 ~ 0.25m/s.
Advantageous effect：Compared with the prior art, the advantages of the present invention are as follows：
1）Gate rod stable structure, not pliable, material is not easy to slide；
2）Rod spacing can be adjusted at any time as needed, realize the screening of the rubbish of different size；
3）It can be good at screening out softness easily winding material, the bulk hard ware material in rubbish, mitigate subsequent processing facility
Pressure；
4）Compared with the routinely equipment such as broken, big part rejecting, treatment effeciency increases by 50%, and electricity consumption saves 60%；
5）Equipment putty probability is reduced, the low wear rate of equipment reduces the maintenance frequency；
6）The processing equipment of the three types material screened out selectively increases.
Description of the drawings
Fig. 1 gate bar screen agent structure schematic diagrams；
Fig. 2 rod card slot schematic diagrames；
Fig. 3 gate rod and the wide module diagram of tune；
Fig. 4 gate bar screen side structure schematic diagrams；
A kind of mineral and municipal waste pre-screening process flow charts of Fig. 5；
Wherein, 1. gate rod；2. rod card slot；3. vibrating grid；4. mounting hole；5. adjusting wide module；6. rubbing surface；7.
First slips flitch；8. second slips flitch；9. discharge port；10. deflector chute.
Specific implementation mode
With reference to example, the present invention is described in further detail.Raw material used in the present invention is commercial product.
Embodiment 1
A kind of mineral and municipal waste pre-sifted separating device, including raw material conveying device, screening plant, sorting conveying device and collection dress
It sets；The screening plant be gate bar screen, as shown in Figure 1,2,3, 4, including gate rod 1, rod card slot 2, vibrating grid 3,
Vibrator slips flitch, discharge port 9 and deflector chute 10.Gate rod 1 supports the whole of the class gate formed with rod beam by two rods
Body structure, rod beam are material feeding compass screen surface, and the top surface of rod beam is plane, the wide 2 ~ 8cm in cross section.Vibrating grid 3 is rectangular frame,
Slant setting, both sides are equipped with the baffle higher than bar screen surface（It is to draw in figure）；Rod card slot 2 is distributed on two of vibrating grid 3
It is fixedly connected on opposite side and with vibrating grid 3（1 rod card slot 2 is only illustrated in Fig. 1, remaining omission）, vibrator and vibrating grid 3 connect
It connects, the rod card slot 2 opposite with both sides on vibrating grid 3 is flexibly connected respectively for two rods of gate rod 1 support end, rod support
It is both provided with the mounting hole 4 of same apertures on end and rod card slot 2, is fixed across mounting hole 4 by bolt therebetween, shape
At gate bar screen agent structure, in rod card slot 2 being equipped with several pieces adjusts wide modules 5, and wide module 5 is adjusted to be equipped with and rod card slot
The mounting hole 4 of 2 same apertures adjusts wide module 5 to be located between rod support end and rod card slot 2, and it is 1 to adjust the thickness of wide module 5
Tri- kinds of cm, 2 cm, 3cm specifications, gate rod 1 adjust the contact surface between wide module 5 and rod card slot 2 for coarse rubbing surface
6。
Rod beam installation direction is parallel with supports for material down-sliding direction.Gate rod 1 is equipped with two groups, successively by supports for material down-sliding direction
For level-one gate rod group and two level gate rod group, level-one gate rod group height 100cm, two level gate rod is than level-one door
Low 40 ~ the 60cm of height and equal length of type rod；The higher one end of level-one gate rod group is feed zone, and feed zone, which is equipped with, to incline
Oblique first slips flitch 7, and the first lowest point for slipping flitch 7 is placed on the compass screen surface of level-one gate rod group front end；Level-one gate rod
Group is 50cm with two level gate rod group spacing, and inclined second is equipped between level-one gate rod group and two level gate rod group
Flitch 8 is slipped, second slips the upper limb of flitch 8 away from level-one gate rod 5 ~ 10cm of group end, and is less than level-one rod group compass screen surface 50cm
, the second lower edge for slipping flitch 8 is located on the compass screen surface of two level gate rod group front end；Spacing between level-one gate stick is 2 ~ 6cm, two
Spacing between grade gate rod is 6 ~ 15cm.Flitch is slipped in level-one gate rod group, two level gate rod group, second 8 times
Equipped with discharge port 9 and deflector chute 10, raw material conveying device and first slips flitch cooperation, deflector chute lower part setting sorting conveying dress
It sets, sorting conveying device coordinates with collection device.
As shown in figure 5, a kind of mineral and municipal waste pre-screening method, includes the following steps：
（1）Aging rubbish is excavated from digging operation face, transport to processing workshop；
（2）Aging rubbish is packed into apron feeder, feedstock transportation thickness is 10 ~ 30cm, and conveying speed is 0.1 ~ 0.25m/s,
Continuous feed；
（3）Aging rubbish is delivered to gate bar screen, by the vibration realizing sieving garbage of bar screen, rubbish after sorting by
Sorting conveying device is sent to respective collection device, and it is 2 ~ 6cm, two level to adjust the spacing between level-one gate rod as needed
Spacing between gate rod is 6 ~ 15cm, and two level gate rod is lower 40 ~ 60cm than the height of level-one gate rod and length phase
Deng, second slips the upper limb of flitch away from level-one gate rod 5 ~ 10cm of group end, and be less than level-one bar screen compass screen surface 50cm, vibrating screen
Vibration frequency be 800 ~ 950r/min, supports for material down-sliding speed is maintained at 0.1 ~ 0.25m/s.
The present invention is illustrated according to above-described embodiment, it should be understood that and above-described embodiment does not limit the present invention in any form,
All technical solutions obtained using equivalent substitution or equivalent transformation mode, are within the scope of the present invention.
Claims (10)
1. a kind of mineral and municipal waste pre-sifted separating device, which is characterized in that defeated including raw material conveying device, screening plant, sorting
Send device and collection device；The screening plant is gate bar screen, including gate rod, rod card slot, vibrating grid, vibration
Device slips flitch, discharge port and deflector chute；The overall structure for the class gate that gate rod is made of two rod supports and rod beam,
Rod beam is material feeding compass screen surface；Vibrating grid is rectangular frame, and slant setting, both sides are equipped with the baffle higher than bar screen surface；Vibrating grid
On be provided with several groups rod card slot, rod support is fixed on rod card slot, the gate that forms a whole rod screen frames；Rod
Sieve support height is 40 ~ 100cm；The higher one end of gate bar screen is feed zone, and feed zone slips flitch equipped with inclined first, the
One lowest point for slipping flitch is placed in above compass screen surface；Discharge port is equipped with below vibrating grid, discharge port bottom is equipped with deflector chute；Raw material is defeated
Device and first is sent to slip flitch cooperation, deflector chute lower part setting sorting conveying device, sorting conveying device coordinates with collection device.
2. a kind of mineral and municipal waste pre-sifted separating device according to claim 1, which is characterized in that the rod beam installation
Direction is parallel with supports for material down-sliding direction, and the spacing between each gate rod is 2 ~ 15cm.
3. a kind of mineral and municipal waste pre-sifted separating device according to claim 1, which is characterized in that the rod support and stick
It is both provided with the mounting hole of same apertures on clamp bar slot, fixation is bolted therebetween.
4. a kind of mineral and municipal waste pre-sifted separating device according to claim 1, which is characterized in that described in rod card slot
It is interior to be equipped with the wide module of several pieces of tune, adjust wide module to be equipped with the mounting hole with rod card slot same apertures, the wide module of tune is located at rod
It supports between end and rod card slot, it is tri- kinds of 1 cm, 2 cm, 3cm specifications to adjust the thickness of wide module.
5. a kind of mineral and municipal waste pre-sifted separating device according to claim 1, which is characterized in that the gate rod,
It is coarse rubbing surface to adjust the contact surface between wide module and rod card slot.
6. a kind of mineral and municipal waste pre-sifted separating device according to claim 1, which is characterized in that the gate rod is set
There are two groups, is followed successively by level-one gate rod group and two level gate rod group by supports for material down-sliding direction, two level gate rod compares level-one
Low 40 ~ the 60cm of height and equal length of gate rod, level-one gate rod group and two level gate rod group spacing are 50cm, one
Flitch is slipped equipped with inclined second between grade gate rod group and two level gate rod group, second slips the upper limb of flitch away from level-one door
Type rod 5 ~ 10cm of group end, and it is less than level-one rod group compass screen surface 50cm, the second lower edge for slipping flitch is located at two level gate rod
On group front end compass screen surface；Spacing between each rod of level-one gate rod group is 2 ~ 6cm, between each rod of two level gate rod group
Spacing is 6 ~ 15cm, and discharge port and guide are equipped in the case where level-one gate rod group, two level gate rod group, second slip flitch
Slot, each deflector chute have conveyer belt.
7. a kind of mineral and municipal waste pre-sifted separating device according to claim 1, which is characterized in that the top of the rod beam
Face is plane, the wide 2 ~ 8cm in cross section.
8. a kind of mineral and municipal waste pre-screening method according to any one of claim 1 ~ 7, which is characterized in that including
Following steps：
（1）Aging rubbish is excavated from digging operation face, transport to processing workshop；
（2）By aging rubbish charging feedstock conveying device, continuous shaking charging；
（3）Aging rubbish is delivered to gate bar screen by mode of vibration, by the vibration realizing sieving garbage of bar screen, is divided
Rubbish after picking is sent by sorting conveying device to respective collection device.
9. a kind of mineral and municipal waste pre-screening method according to claim 8, which is characterized in that the step（2）In
Raw material conveying device be apron feeder, vibrating feed sieve, feedstock transportation thickness be 10 ~ 30cm, conveying speed be 0.1 ~
0.25m/s。
10. a kind of mineral and municipal waste pre-screening method according to claim 8, which is characterized in that the step（3）In
Spacing between each rod of level-one gate rod group is 2 ~ 6cm, and the spacing between each rod item of two level gate stick group is 6 ~ 15cm,
Two level gate rod group is lower 40 ~ 60cm than the height of level-one gate rod group and equal length, and second slips the upper limb of flitch away from one
Grade gate rod 5 ~ 10cm of group end, and it is less than level-one rod group compass screen surface 50cm, the vibration frequency of vibrating screen is 800 ~ 950r/
Min, supports for material down-sliding speed are maintained at 0.1 ~ 0.25m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810298670.4A CN108636753A (en) | 2018-04-04 | 2018-04-04 | Stale household garbage pre-screening device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810298670.4A CN108636753A (en) | 2018-04-04 | 2018-04-04 | Stale household garbage pre-screening device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108636753A true CN108636753A (en) | 2018-10-12 |
Family
ID=63745401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810298670.4A Pending CN108636753A (en) | 2018-04-04 | 2018-04-04 | Stale household garbage pre-screening device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108636753A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4693379A (en) * | 1984-02-29 | 1987-09-15 | Maschinenfabrik Bezner Gmbh & Co. Kg | Screening apparatus |
| CN201791669U (en) * | 2010-09-08 | 2011-04-13 | 鞍钢股份有限公司 | Grate screen with stepped screening surface |
| CN201950022U (en) * | 2011-01-13 | 2011-08-31 | 北京格林雷斯环保科技有限公司 | Simple pre-screening device for stale refuses |
| CN203170573U (en) * | 2013-03-15 | 2013-09-04 | 宝钢德盛不锈钢有限公司 | Inclined screen for screening laterite nickel ores |
| CN203356060U (en) * | 2013-06-28 | 2013-12-25 | 攀钢集团西昌钢钒有限公司 | Adjustable grate sieve |
| CN205288901U (en) * | 2015-12-29 | 2016-06-08 | 安徽科达洁能股份有限公司 | Rod valve |
| CN106040699A (en) * | 2016-05-27 | 2016-10-26 | 神雾环保技术股份有限公司 | Pretreatment method of stale refuse |
| CN206642981U (en) * | 2017-04-07 | 2017-11-17 | 北京东方燕京工程技术股份有限公司 | Rod screening plant |
-
2018
- 2018-04-04 CN CN201810298670.4A patent/CN108636753A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4693379A (en) * | 1984-02-29 | 1987-09-15 | Maschinenfabrik Bezner Gmbh & Co. Kg | Screening apparatus |
| CN201791669U (en) * | 2010-09-08 | 2011-04-13 | 鞍钢股份有限公司 | Grate screen with stepped screening surface |
| CN201950022U (en) * | 2011-01-13 | 2011-08-31 | 北京格林雷斯环保科技有限公司 | Simple pre-screening device for stale refuses |
| CN203170573U (en) * | 2013-03-15 | 2013-09-04 | 宝钢德盛不锈钢有限公司 | Inclined screen for screening laterite nickel ores |
| CN203356060U (en) * | 2013-06-28 | 2013-12-25 | 攀钢集团西昌钢钒有限公司 | Adjustable grate sieve |
| CN205288901U (en) * | 2015-12-29 | 2016-06-08 | 安徽科达洁能股份有限公司 | Rod valve |
| CN106040699A (en) * | 2016-05-27 | 2016-10-26 | 神雾环保技术股份有限公司 | Pretreatment method of stale refuse |
| CN206642981U (en) * | 2017-04-07 | 2017-11-17 | 北京东方燕京工程技术股份有限公司 | Rod screening plant |
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