CN112191306A - Building material crushing and screening device - Google Patents
Building material crushing and screening device Download PDFInfo
- Publication number
- CN112191306A CN112191306A CN202011144334.8A CN202011144334A CN112191306A CN 112191306 A CN112191306 A CN 112191306A CN 202011144334 A CN202011144334 A CN 202011144334A CN 112191306 A CN112191306 A CN 112191306A
- Authority
- CN
- China
- Prior art keywords
- crushing
- plate
- transmission
- roller
- fixedly connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C1/00—Crushing or disintegrating by reciprocating members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/42—Driving mechanisms; Roller speed control
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a building material crushing and screening device, which relates to the technical field of building construction equipment and comprises a mounting plate, wherein four corners at the bottom of the mounting plate are fixedly connected with supporting legs, a crushing box is fixedly connected on the mounting plate and is of a vertically through cavity structure, two crushing rollers are rotatably connected in the crushing box and are arranged, a screening plate is arranged in the crushing box below the crushing rollers, two ends of the screening plate penetrate through the side wall of the crushing box and extend to two sides of the crushing box, the screening plate is in sliding connection with the crushing box, a rolling roller is arranged in the screening box above the screening plate, sliding grooves are formed in the side walls inside the crushing box at two axial sides of the rolling roller, the end part of a rotating shaft of the rolling roller extends into the sliding grooves, two sides of the rolling roller are in sliding connection with the side wall of the crushing box, an opening is formed in the mounting plate below the screening, the trough is received to erection column bottom fixed connection, and the device operation is used conveniently, and the practicality is high.
Description
Technical Field
The invention relates to the technical field of building construction equipment, in particular to a building material crushing and screening device.
Background
At present, with the development of science and technology, fields such as building are also developing rapidly, and in the building field, often need to screen the processing to the building material, but before the building material screening, contain the bold material in the material or harden, the volume is great, causes the damage of equipment very easily, is unfavorable for people's screening, needs to smash it earlier, then in the screening.
Some building material reducing mechanism that are using now, in the crushing process, have and smash incomplete condition, and do not set up secondary reducing mechanism, if mix the use with the processing of its direct input material, probably reduce the quality of material, seriously probably have unqualified condition, and then cause certain economic loss to the construction side.
Disclosure of Invention
The invention provides a building material crushing and screening device, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a building material crushing and screening device comprises a mounting plate, wherein four corners at the bottom of the mounting plate are fixedly connected with supporting legs, the mounting plate is fixedly connected with a crushing box which is a hollow cavity structure with through upper and lower parts, the crushing box is rotationally connected with two crushing rollers, a screening plate is arranged in the crushing box below the crushing roller, two ends of the screening plate penetrate through the side wall of the crushing box and extend to two sides of the crushing box, the screening plate is connected with the crushing box in a sliding way, a rolling roller is arranged in the screening box above the screening plate, sliding chutes are arranged on the side walls of the inner part of the crushing box at the two axial sides of the rolling roller, the end part of a rotating shaft of the rolling roller extends into the chute, the two sides of the rolling roller are connected with the side wall of the crushing box in a sliding way, the opening is formed in the mounting plate below the screening plate, the mounting plate bottom is fixedly connected with the mounting column below the opening, and the material receiving groove is fixedly connected with the bottom of the mounting column.
As a preferred technical scheme of the invention, one side of the screening plate outside the crushing box is fixedly connected with a transmission plate, one side of the transmission plate is fixedly connected with a toothed plate, the side wall of the crushing box above the toothed plate is fixedly connected with a fixed plate, the fixed plate is rotatably connected with a first incomplete gear, the fixed plate on one side of the first incomplete gear is rotatably connected with a first transmission gear, the first transmission gear is in meshing transmission connection with the first incomplete gear, the first incomplete gear is in meshing transmission connection with the toothed plate, the fixed plate on one side of the axial direction of a rotating shaft of the first incomplete gear is rotatably connected with a first transmission wheel, and the rotating shaft of the first transmission wheel is fixedly connected with the rotating shaft of the first incomplete gear.
As a preferable technical scheme of the invention, the two side ends of the rotating shaft of the rolling roller are provided with movable frames, the movable frames are rotatably connected with the rotating shaft of the rolling roller, one end of each movable frame, far away from the rolling roller, penetrates through the side wall of the crushing box and extends to one side outside the crushing box, the end parts of the movable frames are fixedly connected with mounting rods, one side of each mounting rod is fixedly connected with a bearing frame, the bearing frame is fixedly connected with a transmission frame, a second incomplete gear is arranged in the transmission frame and is in meshing transmission connection with the transmission frame, and one axial side of the rotating shaft of the second incomplete gear penetrates through the side wall of the crushing box and is fixedly connected with the.
As a preferable technical scheme of the invention, one axial side of a rotating shaft of the crushing roller penetrates through the side wall of the crushing box, and a second transmission gear and a third transmission gear are fixedly sleeved at the ends of the rotating shaft respectively, the third transmission gear is in meshing transmission connection with the second transmission gear, and one axial end of the third transmission gear is fixedly connected with a second transmission wheel.
As a preferred technical scheme of the invention, a driving motor is fixedly connected to the mounting plate below the driving plate, a driving roller is fixedly sleeved on an output shaft of the driving motor, and one end of the driving roller is in transmission connection with the first driving wheel and the second driving wheel respectively through a driving belt.
As a preferable technical scheme of the invention, the two sides of the crushing box are provided with first observation windows, and the lower end of one side of the crushing box is provided with a second observation window.
As a preferable technical solution of the present invention, transparent glass plates are provided on both the first observation window and the second observation window.
The invention has the following advantages: the device has reasonable structural principle and design, is convenient and fast to operate and use, when crushing operation is carried out, a driving motor is started, a first driving wheel and a second driving wheel are driven to rotate under the action of a driving belt, the second driving wheel drives a third driving gear and a second driving gear to rotate, and further drives a crushing roller to rotate so as to crush materials, the crushed materials fall on a screening plate, meanwhile, the first driving wheel drives an incomplete gear to rotate, the incomplete gear drives a first driving gear and a toothed plate on the driving plate to move, and further the driving plate drives the screening plate to reciprocate left and right to screen the materials, qualified materials with smaller particles pass through the screening plate and fall into a receiving tank to be collected, the filtered materials stop on the screening plate, meanwhile, the axial side of the crushing roller drives the second incomplete gear to rotate, and further drives a driving frame to reciprocate left and right, reciprocating motion about driving the adjustable shelf under the effect that bears the frame realizes rolling the crushing to the large granule material memorability on the screening board, and then realizes smashing thoroughly the whole of material, and the device is smashed effectually, and work efficiency is high, and the material quality of processing out is good, and the practicality is high.
Drawings
Fig. 1 is a front view overall structure schematic diagram of a building material crushing and screening device.
Fig. 2 is a schematic structural diagram of a rear view whole of the building material crushing and screening device.
Fig. 3 is a side view overall structure schematic diagram of the building material crushing and screening device.
In the figure: 1. mounting a plate; 2. a crushing box; 3. a second observation window; 4. a movable frame; 5. a second transmission gear; 6. a second transmission wheel; 7. a third transmission gear; 8. a crushing roller; 9. a first observation window; 10. a first drive pulley; 11. a first incomplete gear; 12. a first drive gear; 13. a fixing plate; 14. a toothed plate; 15. a drive plate; 16. a drive motor; 17. a driving roller; 18. supporting legs; 19. mounting a column; 20. a material receiving groove; 21. screening the plate; 22. a port; 23. rolling a roller; 24. a chute; 25. mounting a rod; 26. a second incomplete gear; 27. a transmission frame; 28. a carrier.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Example 1
Referring to fig. 1-3, a building material crushing and screening device comprises a mounting plate 1, wherein four corners at the bottom of the mounting plate 1 are fixedly connected with supporting legs 18, a crushing box 2 is fixedly connected to the mounting plate 1, the crushing box 2 is of a vertically through cavity structure, two crushing rollers 8 are rotatably connected in the crushing box 2, a screening plate 21 is arranged in the crushing box 2 below the crushing rollers 8, two ends of the screening plate 21 penetrate through the side wall of the crushing box 2 and extend to two sides of the crushing box 2, the screening plate 21 is slidably connected with the crushing box 2, a rolling roller 23 is arranged in the screening box above the screening plate 21, sliding grooves 24 are formed in the side walls inside the crushing box 2 at two axial sides of the rolling roller 23, the end part of a rotating shaft of the rolling roller 23 extends into the sliding grooves 24, two sides of the rolling roller 23 are slidably connected with the side wall of the crushing box 2, through holes 22 are formed in the mounting plate 1, the bottom of the mounting plate 1 below the through opening 22 is fixedly connected with a mounting column 19, and the bottom of the mounting column 19 is fixedly connected with a material receiving groove 20.
Smash 2 outside one side screening boards 21 one side fixed connection driving plate 15 of case, fixed connection pinion rack 14 on 15 one side of driving plate, fixed connection fixed plate 13 on 2 lateral walls of crushing case of pinion rack 14 top rotates on fixed plate 13 and connects first incomplete gear 11, rotates on the fixed plate 13 of first incomplete gear 11 one side and connects first transmission gear 12, and first transmission gear 12 is connected with the transmission of first incomplete gear 11 meshing, first incomplete gear 11 is connected with pinion rack 14 meshing transmission, rotate on the fixed plate 13 of the axial one side of pivot of first incomplete gear 11 and connect first transmission wheel 10, the pivot of first transmission wheel 10 and the pivot fixed connection of first incomplete gear 11.
Roll 23's pivot both sides tip and set up adjustable shelf 4, adjustable shelf 4 rotates with roll 23's pivot to be connected, and adjustable shelf 4 keeps away from roll 23 one end and passes crushing case 2 lateral walls, extends to crushing case 2 outside one side, and tip fixed connection installation pole 25, and installation pole 25 one side fixed connection bears frame 28, bears fixed connection driving frame 27 on the frame 28, sets up the incomplete gear 26 of second in the driving frame 27, and the incomplete gear 26 of second is connected with the driving frame 27 meshing transmission, the incomplete gear 26's of second pivot axial one side is passed and is smashed case 2 lateral walls, and with crushing roller 8's pivot fixed connection.
One axial side of a rotating shaft of the crushing roller 8 penetrates through the side wall of the crushing box 2, a second transmission gear 5 and a third transmission gear 7 are fixedly sleeved at the ends of the rotating shaft, the third transmission gear 7 is in meshing transmission connection with the second transmission gear 5, and one axial end of the third transmission gear 7 is fixedly connected with a second transmission wheel 6.
A driving motor 16 is fixedly connected to the mounting plate 1 below the driving plate 15, a driving roller 17 is fixedly sleeved on an output shaft of the driving motor 16, and one end of the driving roller 17 is in transmission connection with the first driving wheel 10 and the second driving wheel 6 through a driving belt respectively.
Example 2
Referring to fig. 1-3, the other contents of the present embodiment are the same as embodiment 1, except that: first observation windows 9 are arranged on two sides of the crushing box 2, a second observation window 3 is arranged at the lower end of one side of the crushing box 2, and transparent glass plates are arranged on the first observation window 9 and the second observation window 3.
In the implementation process of the invention, when the crushing operation is carried out, the driving motor 16 is started, the first driving wheel 10 and the second driving wheel 6 are driven to rotate under the action of the driving belt, the second driving wheel 6 drives the third driving gear 7 and the second driving gear 5 to rotate, the crushing roller 8 is further driven to rotate to crush the materials, the crushed materials fall on the screening plate 21, meanwhile, the first driving wheel 10 drives the incomplete gear 11 to rotate, the incomplete gear 11 drives the first driving gear 12 and the toothed plate 14 on the driving plate 15 to move, further, the driving plate 15 drives the screening plate 21 to reciprocate left and right to screen the materials, the qualified materials with smaller particles pass through the screening plate 21 to fall into the material receiving tank 20 to be collected, the filtered materials stay on the screening plate 21, and meanwhile, the second incomplete gear 26 is driven to rotate by one axial side of the crushing roller 8, and then drive the driving frame 27 and reciprocate from side to side, drive the movable frame 4 and reciprocate from side to side under the effect of bearing frame 28, realize that the large granule material on the screening board 21 is remembered to roll and is smashed, and then realize smashing completely the whole of material.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a building material crushing sieving mechanism, includes mounting panel (1), its characterized in that, mounting panel (1) bottom four corners department fixed connection supporting leg (18), fixed connection smashes case (2) on mounting panel (1), smashes case (2) for penetrating cavity structure from top to bottom, smash case (2) internal rotation connection crushing roller (8), smash roller (8) and be equipped with two, set up sieve plate (21) in crushing case (2) of smashing roller (8) below, sieve plate (21) both ends are passed and are smashed case (2) lateral wall, extend to crushing case (2) both sides, sieve plate (21) and crushing case (2) sliding connection, set up grinding roller (23) in the sieve box of sieve plate (21) top, set up spout (24) on the crushing case (2) inside lateral wall of grinding roller (23) axial both sides, the pivot tip of grinding roller (23) extends to in spout (24), roll roller (23) both sides and smash case (2) lateral wall sliding connection, set up on mounting panel (1) of screening board (21) below through opening (22), mounting panel (1) bottom fixed connection erection column (19) of through opening (22) below, mounting column (19) bottom fixed connection receiving groove (20).
2. The building material crushing and screening device according to claim 1, wherein one side of the screening plate (21) outside the crushing box (2) is fixedly connected with a transmission plate (15), one side of the transmission plate (15) is fixedly connected with a toothed plate (14), the side wall of the crushing box (2) above the toothed plate (14) is fixedly connected with a fixed plate (13), the fixed plate (13) is rotatably connected with a first incomplete gear (11), the fixed plate (13) on one side of the first incomplete gear (11) is rotatably connected with a first transmission gear (12), the first transmission gear (12) is in meshing transmission connection with the first incomplete gear (11), the first incomplete gear (11) is in meshing transmission connection with the toothed plate (14), the fixed plate (13) on one side of the axial direction of the rotating shaft of the first incomplete gear (11) is rotatably connected with a first transmission wheel (10), the rotating shaft of the first driving wheel (10) is fixedly connected with the rotating shaft of the first incomplete gear (11).
3. The building material crushing and screening device according to claim 2, the end parts of two sides of the rotating shaft of the rolling roller (23) are provided with movable frames (4), the movable frames (4) are rotatably connected with the rotating shaft of the rolling roller (23), one end of each movable frame (4) far away from the rolling roller (23) penetrates through the side wall of the crushing box (2) and extends to one side of the outer part of the crushing box (2), the end part is fixedly connected with a mounting rod (25), one side of the mounting rod (25) is fixedly connected with a bearing frame (28), the bearing frame (28) is fixedly connected with a transmission frame (27), a second incomplete gear (26) is arranged in the transmission frame (27), the second incomplete gear (26) is in meshing transmission connection with the transmission frame (27), one axial side of the rotating shaft of the second incomplete gear (26) penetrates through the side wall of the crushing box (2) and is fixedly connected with the rotating shaft of the crushing roller (8).
4. The building material crushing and screening device according to claim 3, wherein one axial side of a rotating shaft of the crushing roller (8) penetrates through the side wall of the crushing box (2), a second transmission gear (5) and a third transmission gear (7) are fixedly sleeved and connected with the end of the rotating shaft, the third transmission gear (7) is in meshing transmission connection with the second transmission gear (5), and one axial end of the third transmission gear (7) is fixedly connected with the second transmission wheel (6).
5. The building material crushing and screening device according to claim 4, wherein a driving motor (16) is fixedly connected to the mounting plate (1) below the driving plate (15), a driving roller (17) is fixedly sleeved on an output shaft of the driving motor (16), and one end of the driving roller (17) is in transmission connection with the first driving wheel (10) and the second driving wheel (6) through a driving belt.
6. The building material crushing and screening device according to claim 4 or 5, wherein the crushing box (2) is provided with first observation windows (9) at two sides, and the lower end of one side of the crushing box (2) is provided with a second observation window (3).
7. The building material crushing and screening device as claimed in claim 6, wherein transparent glass plates are arranged on the first observation window (9) and the second observation window (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011144334.8A CN112191306A (en) | 2020-10-23 | 2020-10-23 | Building material crushing and screening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011144334.8A CN112191306A (en) | 2020-10-23 | 2020-10-23 | Building material crushing and screening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112191306A true CN112191306A (en) | 2021-01-08 |
Family
ID=74010939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011144334.8A Withdrawn CN112191306A (en) | 2020-10-23 | 2020-10-23 | Building material crushing and screening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112191306A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112827567A (en) * | 2021-01-21 | 2021-05-25 | 戴坤 | Agricultural compound fertilizer manufacturing equipment |
| CN113181996A (en) * | 2021-04-13 | 2021-07-30 | 惠安竹点点通讯设备有限公司 | Electronic product production is with abandonment bulb breaker |
| CN114798066A (en) * | 2022-01-22 | 2022-07-29 | 周洪住 | Coal cinder treatment equipment for cement preparation and cement preparation method |
| CN114985414A (en) * | 2022-05-30 | 2022-09-02 | 杭州新杭业建设有限公司 | Method and equipment for screening and separating urban muck |
-
2020
- 2020-10-23 CN CN202011144334.8A patent/CN112191306A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112827567A (en) * | 2021-01-21 | 2021-05-25 | 戴坤 | Agricultural compound fertilizer manufacturing equipment |
| CN113181996A (en) * | 2021-04-13 | 2021-07-30 | 惠安竹点点通讯设备有限公司 | Electronic product production is with abandonment bulb breaker |
| CN114798066A (en) * | 2022-01-22 | 2022-07-29 | 周洪住 | Coal cinder treatment equipment for cement preparation and cement preparation method |
| CN114985414A (en) * | 2022-05-30 | 2022-09-02 | 杭州新杭业建设有限公司 | Method and equipment for screening and separating urban muck |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112191306A (en) | Building material crushing and screening device | |
| WO2021129173A1 (en) | Chemical raw material crushing and refining device | |
| CN111420749A (en) | Building garbage recycling production equipment for brick sintering added as barren material | |
| CN213254727U (en) | Grinding and screening device for processing rice cakes | |
| CN108325602A (en) | A kind of concrete powder crushing device with high frequency zone function | |
| CN111229377B (en) | Grit screening plant for construction | |
| CN112354666A (en) | Material crushing and screening device for building | |
| CN110918167A (en) | Screening device is smashed to beverage raw materials | |
| CN212446208U (en) | PVC plastic-aluminum of ageing resistance crowded waste material processing device for bottom plate altogether | |
| CN212528311U (en) | Raw material mixing device is used in plastic granules production | |
| CN218048130U (en) | Civil engineering construction waste treatment device | |
| CN113634317A (en) | Industrial solid waste crushing treatment recovery unit | |
| CN221335307U (en) | Screening machine | |
| CN213943495U (en) | Civil engineering material reducing mechanism | |
| CN221492303U (en) | Batching device for producing rock wool boards | |
| CN210332802U (en) | Electronic manufacturing waste treatment device | |
| CN220657307U (en) | Feed premixing equipment | |
| CN215506956U (en) | Reducing mechanism for chemical industry | |
| CN214234992U (en) | Grit sieving mechanism for building engineering | |
| CN220610610U (en) | Breaker of renewable resources recycle processing | |
| CN220004145U (en) | Semiconductor raw material purification pretreatment reducing mechanism | |
| CN212396808U (en) | Crushing and sorting equipment for waste building structures | |
| CN218690256U (en) | Waste furniture recycling device | |
| CN221016339U (en) | Raw material screening device for building concrete processing | |
| CN217189822U (en) | Mine grit reducing mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210108 |
|
| WW01 | Invention patent application withdrawn after publication |