CN209680211U - A kind of environment-friendly type building concrete powder crushing device with waste recovery function - Google Patents
A kind of environment-friendly type building concrete powder crushing device with waste recovery function Download PDFInfo
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- CN209680211U CN209680211U CN201920226750.9U CN201920226750U CN209680211U CN 209680211 U CN209680211 U CN 209680211U CN 201920226750 U CN201920226750 U CN 201920226750U CN 209680211 U CN209680211 U CN 209680211U
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Abstract
The utility model discloses a kind of environment-friendly type building concrete powder crushing device with waste recovery function, is related to building concrete processing technique field.The environment-friendly type building concrete powder crushing device with waste recovery function, including feeding device, bottom plate and cabinet, the bottom base plate is fixedly installed with supporting leg, cabinet is fixedly installed at the top of bottom plate, top of the box is fixedly installed with feeding warehouse, feeding warehouse is connected to box house, drive roll and driven voller are rotatably equipped with by shaft on inner wall before and after cabinet, several crushing tooths are fixedly installed on drive roll and driven voller, the crushing tooth on crushing tooth and driven voller on drive roll is meshed, the leading exterior surface of cabinet is fixedly installed with the second motor, the utility model structure is simple, good crushing effect, iron charge in fragment can be collected, it can also be dusted operation simultaneously, reduce dust to disseminate, improve the health care to staff.
Description
Technical field
The utility model relates to building concrete processing technique field, specially a kind of environment-friendly type with waste recovery function
Building concrete grinding device.
Background technique
Concrete refers to the general designation of the cementing integral engineered composite material of aggregate by cementitious material.That usually says is mixed
One word of solidifying soil, which refers to, makees cementitious material, sand, masonry aggregate with cement；Match by a certain percentage with water (additive and admixture can be contained)
Close, it is agitated obtained by cement concrete, also referred to as normal concrete, it is widely used in civil engineering.
Production needs are constructed into order to meet, need to crush concrete block, general concrete powder crushing device crushes
Effect is to be improved, can be adulterated in broken concrete there are many iron charge, these iron charges are all by slatterning in vain under normal circumstances,
While carrying out comminution process, a large amount of dusts can be generated, these dusts not only cause centainly the health of staff
Harm, while certain influence is also resulted in environment.
Utility model content
The purpose of this utility model is to provide a kind of environment-friendly type building concrete powder crushing device with waste recovery function,
To solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides the following technical solutions: a kind of environment-friendly type with waste recovery function
Building concrete grinding device, including feeding device, bottom plate and cabinet, the bottom base plate are fixedly installed with supporting leg, bottom plate
Top is fixedly installed with cabinet, and top of the box is fixedly installed with feeding warehouse, and feeding warehouse is connected to box house, inner wall before and after cabinet
It is upper that drive roll and driven voller are rotatably equipped with by shaft, several crushing tooths are fixedly installed on drive roll and driven voller, it is main
The crushing tooth on crushing tooth and driven voller on dynamic roller is meshed, and the leading exterior surface of cabinet is fixedly installed with the second motor, the
The output shaft of two motors is connected by installation shaft one end that shaft coupling is through to box house and drive roll, cabinet two sides inner wall
On be rotatably equipped with rotating bar, rotating bar is located at the lower section of drive roll, several magnet adsorption plates, cabinet two sides is fixed in rotating bar
Filter plate is fixedly installed on inner wall, filter plate is inclined to set, and filter plate is located at the lower section of rotating bar, and one side external surface of cabinet passes through branch
Frame is fixedly installed with shell, and the first oblique siphunculus is fixedly installed on the outer wall of cabinet side, and cabinet passes through the first oblique siphunculus and shell
It is fixed to be connected to, it is provided with feeding device on shell, shell is fixedly installed with the second oblique siphunculus close to the side of cabinet, and shell passes through
Second oblique siphunculus is connected to feeding warehouse fixation, and for cabinet far from air draught bucket is fixedly installed on the side inner wall of shell, cabinet is another
It is fixed by the bracket on the outer wall of side and air inducing pump is installed, the air intake of air inducing pump is through to box house and air draught bucket by pipeline
It connects, mounting plate is fixedly installed on the outer wall of the cabinet other side, dust cleaning case and water pump, air inducing pump are fixedly installed at the top of mounting plate
Outlet air end be connected to by being fixed inside pipeline and dust cleaning case, dust cleaning case inside top is fixedly installed with atomizer, water pump
Water inlet end is connected to by pipeline with fixation inside dust cleaning case, and the water outlet of water pump is fixedly installed with one end of water service pipe, water service pipe
Free end be through in dust cleaning case and connect with atomizer, dismantled convenient for staff, the fixed installation of dust cleaning case top
There is a water injection pipe, offer air outlet at the top of dust cleaning case, the leading exterior surface of cabinet is hinged with hermatic door by articulation piece, in cabinet
Side bottom is fixedly installed with discharge nozzle, and the bottom end of discharge nozzle runs through bottom plate and extends to the lower section of bottom plate, fixed peace on discharge nozzle
Equipped with valve.
Preferably, top cover is hinged with by articulation piece at the top of the feeding warehouse.
Preferably, cleaning iron brush is fixedly installed on the two sides inner wall of the cabinet.
Preferably, the feeding device includes first motor, Rotational Cylindrical and screw blade, and Rotational Cylindrical, which longitudinally rotates, to be installed on
The upper end outer surface with shell is fixedly mounted in enclosure interior, first motor, and the output shaft of first motor is through to by shaft coupling
It is connect in shell with the top of Rotational Cylindrical, several groups screw blade is fixedly installed in Rotational Cylindrical.
Preferably, far from block is fixedly installed on the side inner wall of shell, block top surface is inclined to set the cabinet,
Block is located at the surface of air draught bucket.
Preferably, it is provided with filter cartridge on the water service pipe, is filled with silt filter layer in filter cartridge, filter cartridge passes through method
Blue disk is fixedly connected with water service pipe.
Preferably, the box inside bottom is fixedly installed with stock guide, and the quantity of stock guide is two and in symmetrical inclination
Setting.
Compared with prior art, the utility model has the beneficial effects that
(1), the environment-friendly type building concrete powder crushing device with waste recovery function, can will be mixed by magnet adsorption plate
Iron charge in solidifying soil fragment carries out adsorption recovery and is conducive to economize on resources to reduce the unnecessary waste of iron charge, Neng Gouyi
The enterprise, side determined in degree reduces processing cost.
(2), the environment-friendly type building concrete powder crushing device with waste recovery function, passes through filter plate, the first oblique siphunculus, shell
Body, first motor, rotating bar, screw blade and the second oblique siphunculus are used cooperatively, so that the concrete of the broken requirement of less than foot-powder
Fragment can be crushed again, to effectively improve crushing effect, crushing and processing efficiency be improved, in crushing process
In, cleaning iron brush cleans drive roll and driven voller, avoids adhering to excessive foreign matter on drive roll and driven voller.
(3), the environment-friendly type building concrete powder crushing device with waste recovery function passes through air inducing pump, air draught bucket, dedusting
Case, water pump, water service pipe and atomizer are used cooperatively, and are able to carry out dedusting operation, are reduced scattering dust, improve to work
Make the health care of personnel, while reducing pollution of the dust to environment.
(4), the environment-friendly type building concrete powder crushing device with waste recovery function, the setting of filter cartridge, so that dedusting
Water in case is able to carry out recycling, to save water resource, filter cartridge is connect with water service pipe using ring flange, is convenient for work
Make personnel and dismounting and change is carried out to filter cartridge, is conducive to the working efficiency for improving disassembly personnel.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the enlarged structure schematic diagram in the portion A in the utility model；
Fig. 3 is the front view of the utility model.
In figure: 1 feeding device, 101 first motors, 102 Rotational Cylindricals, 103 screw blades, 2 shells, 3 pedestals, 4 supporting legs,
5 discharge nozzles, 6 stock guides, 7 air draught buckets, 8 blocks, 9 cabinets, 10 rotating bars, 11 magnet adsorption plates, 12 filter plates, 13 first tiltedly lead to
Pipe, 14 driven vollers, 15 air inducing pump, 16 mounting plates, 17 water pumps, 18 water service pipes, 19 atomizers, 20 dust cleaning cases, 21 drive rolls, 22
Crushing tooth, 23 feeding warehouses, 24 cover boards, 25 second oblique siphunculus, 26 filter cartridges, 27 second motors, 28 cleaning iron brushes.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of environment-friendly type building with waste recovery function
Concrete powder crushing device, including feeding device 1, bottom plate 3 and cabinet 9,3 bottom of bottom plate are fixedly installed with supporting leg 4, and bottom plate 3 pushes up
Portion is fixedly installed with cabinet 9, and feeding warehouse 23 is fixedly installed at the top of cabinet 9, is connected to inside feeding warehouse 23 and cabinet 9, feeding warehouse
23 tops are hinged with top cover 24 by articulation piece, are rotatably equipped with drive roll 21 and driven by shaft on 9 front and back inner wall of cabinet
Several crushing tooths 22 are fixedly installed on roller 14, drive roll 21 and driven voller 14, crushing tooth 22 on drive roll 21 and driven
Crushing tooth 22 on roller 14 is meshed, and the leading exterior surface of cabinet 9 is fixedly installed with the second motor 27, the output of the second motor 27
Axis is through to 9 inside of cabinet by shaft coupling and connect with installation shaft one end of drive roll 21, solid on the two sides inner wall of cabinet 9
Dingan County is rotatably equipped with rotating bar 10 on 9 two sides inner wall of cabinet, rotating bar 10 is located under drive roll 21 equipped with iron brush 28 is cleaned
It is square, several magnet adsorption plates 11 are fixed in rotating bar 10, filter plate 12 is fixedly installed on 9 two sides inner wall of cabinet, filter plate 12 is in incline
Tiltedly setting, the pore size filter of filter plate 12 can be set according to processing request, and filter plate 12 is located at the lower section of rotating bar 10, cabinet 9 one
Side external surface, which is fixed by the bracket, is equipped with shell 2, and the first oblique siphunculus 13 is fixedly installed on 9 side outer wall of cabinet, and cabinet 9 is logical
It crosses the first oblique siphunculus 13 to be connected to the fixation of shell 2, feeding device 1 is provided on shell 2, feeding device 1 includes first motor
101, Rotational Cylindrical 102 and screw blade 103, Rotational Cylindrical 102, which longitudinally rotates, to be installed on inside shell 2, the fixed peace of first motor 101
The output shaft of the upper end outer surface of dress and shell 2, first motor 101 is through in shell 2 and Rotational Cylindrical 102 by shaft coupling
Top connects, and several groups screw blade 103 is fixedly installed in Rotational Cylindrical 102, and shell 2 is fixedly mounted close to the side of cabinet 9
There is the second oblique siphunculus 25, shell 2 is connected to by the second oblique siphunculus 25 with the fixation of feeding warehouse 23, in side of the cabinet 9 far from shell 2
Air draught bucket 7 is fixedly installed on wall, cabinet 9 is in incline far from block 8,8 top surface of block is fixedly installed on the side inner wall of shell 2
Tiltedly setting, block 8 are located at the surface of air draught bucket 7, are fixed by the bracket on 9 other side outer wall of cabinet and are equipped with air inducing pump 15,
The air intake of air inducing pump 15 is through to 9 inside of cabinet by pipeline and connect with air draught bucket 7, fixed peace on 9 other side outer wall of cabinet
Equipped with mounting plate 16, dust cleaning case 20 and water pump 17 are fixedly installed at the top of mounting plate 16, the outlet air end of air inducing pump 15 passes through pipeline
It is connected to fixation inside dust cleaning case 20,20 inside top of dust cleaning case is fixedly installed with atomizer 19, and the water inlet end of water pump 17 is logical
Piping is connected to fixation inside dust cleaning case 20, and the water outlet of water pump 17 is fixedly installed with one end of water service pipe 18, water service pipe 18
Free end be through in dust cleaning case 20 and connect with atomizer 19, filter cartridge 26 is provided on water service pipe 18, in filter cartridge 26
Filled with silt filter layer, filter cartridge 26 is fixedly connected by ring flange with water service pipe 18, is dismantled, is removed convenient for staff
It is fixedly installed with water injection pipe at the top of dirt case 20, air outlet is offered at the top of dust cleaning case 20, the leading exterior surface of cabinet 9 passes through hinged
Part is hinged with hermatic door, and 9 inside bottom of cabinet is fixedly installed with stock guide 6, and the quantity of stock guide 6 is two and sets in symmetrical inclination
It sets, 9 inside bottom of cabinet is fixedly installed with discharge nozzle 5, and the bottom end of discharge nozzle 5 runs through bottom plate 3 and extends to the lower section of bottom plate 3,
It is fixedly installed with valve on discharge nozzle 5, in use, concrete block to be comminuted is put into feeding warehouse 23, closes
Top cover 24, concrete block are fallen in cabinet 9, and the second motor 27 drives drive roll 21 to rotate, and pass through crushing tooth 22 and driven voller
14 be used cooperatively, to crush to concrete block, in crushing process, cleans iron brush 28 to drive roll 21 and driven voller
14 are cleaned, and avoid adhering to excessive foreign matter on drive roll 21 and driven voller 14, and first smashed concrete block is fallen to
On magnet adsorption plate 11 and rotating bar 10 is driven to rotate, magnet adsorption plate 11 adsorbs the iron charge in broken concrete, right
Iron charge is recycled, to be conducive to economize on resources, so that reduction processing cost to a certain extent, broken concrete are fallen to
On filter plate 12, meets the fragment for crushing and requiring and fall to 9 inside bottom of cabinet and be discharged by discharge nozzle 5, it is undesirable
Fragment is entered in shell 2 by the first oblique siphunculus 13, and first motor 101 drives Rotational Cylindrical 103 to rotate, and passes through screw blade
102 are used cooperatively, so that the fragment longitudinal movement in shell 2, the fragment in shell 2 passes through the second oblique siphunculus 25 again and enters to
In feeding warehouse 23 and be again introduced into crushed in cabinet 9, adsorption operation, so that crushing effect is effectively improved, with this
Meanwhile 15 starting of air inducing pump, the dust generated in cabinet 9 is introduced in dust cleaning case 20, water pump 17 leads to the water in dust cleaning case 20
It crosses water service pipe 18 to be pumped into atomizer 19 and form water mist ejection, to be dusted operation, reduces the distribution of dust, improve
Health care to staff, is conducive to the protection to environment, the setting of filter cartridge 26 can be to the water in dust cleaning case 20
It is filtered, the water in dust cleaning case 20 is recycled, to save water resource.
In use, in use, concrete block to be comminuted is put into feeding warehouse 23, closes top cover
24, concrete block is fallen in cabinet 9, and the second motor 27 drives drive roll 21 to rotate, and passes through crushing tooth 22 and driven voller 14
Be used cooperatively, to be crushed to concrete block, in crushing process, cleaning iron brush 28 to drive roll 21 and driven voller 14 into
Row cleaning, first smashed concrete block fall on magnet adsorption plate 11 and rotating bar 10 are driven to rotate, magnet adsorption plate
Iron charge in 11 pairs of broken concretes adsorbs, and broken concrete is fallen on filter plate 12, meets the fragment for crushing and requiring and falls
It drops down onto 9 inside bottom of cabinet and is discharged by discharge nozzle 5, undesirable fragment enters to shell by the first oblique siphunculus 13
In 2, first motor 101 drives Rotational Cylindrical 103 to rotate, by being used cooperatively for screw blade 102, so that the fragment in shell 2
Longitudinal movement, the fragment in shell 2 pass through again the second oblique siphunculus 25 enter in feeding warehouse 23 and be again introduced into in cabinet 9 into
Row crushes, adsorption operation, and 15 starting of air inducing pump introduces the dust generated in cabinet 9 in dust cleaning case 20, water pump 17 is by dust cleaning case
Water in 20 is pumped into atomizer 19 by water service pipe 18 and forms water mist ejection, is dusted operation.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of environment-friendly type building concrete powder crushing device with waste recovery function, including feeding device (1), bottom plate (3) and
Cabinet (9), it is characterised in that: bottom plate (3) bottom is fixedly installed with supporting leg (4), is fixedly installed with case at the top of bottom plate (3)
Body (9), cabinet (9) top is fixedly installed with feeding warehouse (23), is connected to inside feeding warehouse (23) and cabinet (9), before and after cabinet (9)
Drive roll (21) and driven voller (14) are rotatably equipped with by shaft on inner wall, fixed on drive roll (21) and driven voller (14)
It is equipped with several crushing tooths (22), the crushing tooth (22) on drive roll (21) is mutually nibbled with the crushing tooth (22) on driven voller (14)
It closes, the leading exterior surface of cabinet (9) is fixedly installed with the second motor (27), and the output shaft of the second motor (27) is passed through by shaft coupling
It wears to cabinet (9) is internal and is connect with installation shaft one end of drive roll (21), be rotatably equipped with rotation on the inner wall of cabinet (9) two sides
Bar (10), rotating bar (10) are located at the lower section of drive roll (21), and several magnet adsorption plates (11), cabinet are fixed in rotating bar (10)
(9) it is fixedly installed on the inner wall of two sides filter plate (12), filter plate (12) is inclined to set, and filter plate (12) is located under rotating bar (10)
Side, (9) one side external surface of cabinet, which is fixed by the bracket, to be equipped with shell (2), is fixedly installed with first on the outer wall of cabinet (9) side
Oblique siphunculus (13), cabinet (9) are connected to by the first oblique siphunculus (13) with shell (2) fixation, and shell is provided with feeding device on (2)
(1), shell (2) is fixedly installed with the second oblique siphunculus (25) close to the side of cabinet (9), and shell (2) passes through the second oblique siphunculus
(25) it is connected to feeding warehouse (23) fixation, is fixedly installed with air draught bucket (7), case on the side inner wall of cabinet (9) separate shell (2)
It is fixed by the bracket on the outer wall of body (9) other side and air inducing pump (15) is installed, the air intake of air inducing pump (15) is run through by pipeline
It is connect to cabinet (9) is internal with air draught bucket (7), is fixedly installed with mounting plate (16), mounting plate on the outer wall of cabinet (9) other side
(16) top is fixedly installed with dust cleaning case (20) and water pump (17), and the outlet air end that air inducing pumps (15) passes through pipeline and dust cleaning case (20)
The fixed connection in inside, dust cleaning case (20) inside top are fixedly installed with atomizer (19), and the water inlet end of water pump (17) passes through pipe
Road is connected to fixation inside dust cleaning case (20), and the water outlet of water pump (17) is fixedly installed with one end of water service pipe (18), water service pipe
(18) free end is through in dust cleaning case (20) and connect with atomizer (19), dismantles convenient for staff, dust cleaning case
(20) top is fixedly installed with water injection pipe, offers air outlet at the top of dust cleaning case (20), the leading exterior surface of cabinet (9) passes through hinge
Fitting is hinged with hermatic door, and cabinet (9) inside bottom is fixedly installed with discharge nozzle (5), and bottom plate is run through in the bottom end of discharge nozzle (5)
(3) and the lower sections of bottom plate (3) is extended to, discharge nozzle is fixedly installed with valve on (5).
2. a kind of environment-friendly type building concrete powder crushing device with waste recovery function according to claim 1, feature
It is: top cover (24) is hinged with by articulation piece at the top of the feeding warehouse (23).
3. a kind of environment-friendly type building concrete powder crushing device with waste recovery function according to claim 1, feature
It is: is fixedly installed with cleaning iron brush (28) on the two sides inner wall of the cabinet (9).
4. a kind of environment-friendly type building concrete powder crushing device with waste recovery function according to claim 1, feature
Be: the feeding device (1) includes first motor (101), Rotational Cylindrical (102) and screw blade (103), Rotational Cylindrical (102)
It longitudinally rotates and is installed on shell (2) inside, the upper end outer surface with shell (2), first motor is fixedly mounted in first motor (101)
(101) output shaft is through in shell (2) by shaft coupling and is connect with the top of Rotational Cylindrical (102), solid in Rotational Cylindrical (102)
Dingan County is equipped with several groups screw blade (103).
5. a kind of environment-friendly type building concrete powder crushing device with waste recovery function according to claim 3, feature
Be: far from being fixedly installed with block (8) on the side inner wall of shell (2), block (8) top surface is inclined to be set the cabinet (9)
It sets, block (8) is located at the surface of air draught bucket (7).
6. a kind of environment-friendly type building concrete powder crushing device with waste recovery function according to claim 1, feature
It is: is provided with filter cartridge (26) on the water service pipe (18), silt filter layer, filter cartridge (26) is filled in filter cartridge (26)
It is fixedly connected by ring flange with water service pipe (18).
7. a kind of environment-friendly type building concrete powder crushing device with waste recovery function according to claim 5, feature exist
In: cabinet (9) inside bottom is fixedly installed with stock guide (6), and the quantity of stock guide (6) is two and is in symmetrically to be obliquely installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920226750.9U CN209680211U (en) | 2019-02-24 | 2019-02-24 | A kind of environment-friendly type building concrete powder crushing device with waste recovery function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920226750.9U CN209680211U (en) | 2019-02-24 | 2019-02-24 | A kind of environment-friendly type building concrete powder crushing device with waste recovery function |
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| Publication Number | Publication Date |
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| CN209680211U true CN209680211U (en) | 2019-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920226750.9U Expired - Fee Related CN209680211U (en) | 2019-02-24 | 2019-02-24 | A kind of environment-friendly type building concrete powder crushing device with waste recovery function |
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| CN (1) | CN209680211U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111282642A (en) * | 2020-03-12 | 2020-06-16 | 李文丽 | Asbestos tile recovery device |
| CN111389563A (en) * | 2020-04-20 | 2020-07-10 | 温州兴升环保科技有限公司 | A multiple waste material letter sorting recovery plant for among building rubbish |
| CN111822084A (en) * | 2020-06-16 | 2020-10-27 | 江西省特邦生物药业有限公司 | Superfine grinding treatment device for solid materials of dried orange peel oral liquid for livestock |
| CN112474004A (en) * | 2020-11-10 | 2021-03-12 | 姚裕强 | Movable construction waste treatment equipment |
| CN113001763A (en) * | 2021-02-22 | 2021-06-22 | 重庆市开州区三逸混凝土有限公司 | Recycled concrete apparatus for producing |
| CN115318365A (en) * | 2021-12-29 | 2022-11-11 | 南京工业职业技术大学 | Based on mechanical and electrical integration gravel and sand sieving mechanism |
-
2019
- 2019-02-24 CN CN201920226750.9U patent/CN209680211U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111282642A (en) * | 2020-03-12 | 2020-06-16 | 李文丽 | Asbestos tile recovery device |
| CN111282642B (en) * | 2020-03-12 | 2021-11-05 | 陈科帆 | Asbestos tile recovery device |
| CN111389563A (en) * | 2020-04-20 | 2020-07-10 | 温州兴升环保科技有限公司 | A multiple waste material letter sorting recovery plant for among building rubbish |
| CN111822084A (en) * | 2020-06-16 | 2020-10-27 | 江西省特邦生物药业有限公司 | Superfine grinding treatment device for solid materials of dried orange peel oral liquid for livestock |
| CN112474004A (en) * | 2020-11-10 | 2021-03-12 | 姚裕强 | Movable construction waste treatment equipment |
| CN113001763A (en) * | 2021-02-22 | 2021-06-22 | 重庆市开州区三逸混凝土有限公司 | Recycled concrete apparatus for producing |
| CN115318365A (en) * | 2021-12-29 | 2022-11-11 | 南京工业职业技术大学 | Based on mechanical and electrical integration gravel and sand sieving mechanism |
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Granted publication date: 20191126 |