CN113770018B - Can reduce energy loss's drum sand screening machine for building - Google Patents
Can reduce energy loss's drum sand screening machine for building Download PDFInfo
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- CN113770018B CN113770018B CN202111138306.XA CN202111138306A CN113770018B CN 113770018 B CN113770018 B CN 113770018B CN 202111138306 A CN202111138306 A CN 202111138306A CN 113770018 B CN113770018 B CN 113770018B
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- roller
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- screening
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- 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
- B07B1/18—Drum screens
- B07B1/22—Revolving drums
- B07B1/24—Revolving drums with fixed or moving interior agitators
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- 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
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention is suitable for the field of construction, and provides a rotary screen sand machine for construction, which can reduce energy loss, and comprises a workbench and a shell, and further comprises: the first-stage screening mechanism comprises a screening cylinder, the screening cylinder is rotationally connected with the shell, a dispersing assembly is arranged in the screening cylinder, and a driving mechanism is connected between the screening cylinder and the dispersing assembly; the secondary screening mechanism comprises a roller, wherein a fixing piece is rotationally connected to the outer side of the roller, a connecting rod is rotationally connected to the fixing piece, a first connecting shaft is arranged on the side end face of the shell, the first connecting shaft is in sliding and penetrating connection with a sliding groove on the connecting rod, a guide rail is fixedly connected to the screen drum, the side end face of the guide rail is a curved surface, and one end of the connecting rod is in sliding connection with the curved surface of the guide rail; after screening, the sand and stone with larger volume screened in the screen cylinder can be discharged from the discharging pipe after the electric control door is opened.
Description
Technical Field
The invention belongs to the field of buildings, and particularly relates to a drum sand screening machine for a building, which can reduce energy loss.
Background
The sand screening machine is sand and stone separating equipment used for screening and classifying sand and stone in the building construction process.
Although the existing roller sand screening machine for the building can carry out multistage screening on sand and stone, the existing roller sand screening machine for the building usually carries out screening on the sand and stone in a single rotating mode by utilizing centrifugal force, and the screening effect is poor; in order to avoid the above technical problems, it is necessary to provide a drum sand screening machine for construction, which can reduce the energy consumption, so as to overcome the defects in the prior art.
Disclosure of Invention
The invention aims to provide a drum sand screening machine for a building, which can reduce energy loss and aims to solve the problems of poor screening effect and high energy loss of the conventional drum sand screening machine for a building.
The invention is realized in such a way that the drum sand screening machine for the building capable of reducing energy loss comprises a workbench and a shell, and further comprises:
the device comprises a shell, a workbench, a first-stage screening mechanism, a second-stage screening mechanism and a third-stage screening mechanism, wherein the shell is fixedly connected with the workbench, the first-stage screening mechanism comprises a screen drum, an electric control door is arranged on the side end face of the screen drum, the screen drum is rotationally connected with the shell, a dispersing assembly is arranged in the screen drum, a driving mechanism is connected between the screen drum and the dispersing assembly, and the driving mechanism is used for driving the screen drum and the dispersing assembly to rotate reversely;
the secondary screening mechanism comprises a roller, wherein a discharging pipe is arranged on the side end face of the shell, one end of the discharging pipe is opposite to the roller, a fixing piece is rotationally connected to the outer side of the roller, a connecting rod is rotationally connected to the fixing piece, a first connecting shaft is arranged on the side end face of the shell, the first connecting shaft is in sliding penetrating connection with a sliding groove on the connecting rod, a guide rail is fixedly connected to the screen drum, the rotation center of the first connecting shaft is close to the guide rail, and meanwhile, the fixing piece is far away from the rotation center of the first connecting shaft;
the end face of the bottom side of the guide rail is a curved surface, and one end of the connecting rod is in sliding connection with the curved surface of the guide rail;
one side of the roller is provided with a limiting part, an elastic component and a transmission component are connected between the roller and the limiting part, the roller can perform reciprocating oscillation under the action of the elastic component, meanwhile, the roller can perform reciprocating rotation under the drive of the transmission component, and collecting grooves are formed in one side of the roller and one side of the limiting part;
the screen drum drives the guide rail to rotate, and the guide rail drives the connecting rod to swing reciprocally around the first connecting shaft, so that the connecting rod and the elastic component cooperate to drive the roller to oscillate reciprocally in the limiting piece.
Further technical scheme, actuating mechanism is including being used for providing the power spare of turning force, power spare and dispersion subassembly fixed connection, the side terminal surface rotation of shell is connected with the transmission shaft, the both ends of transmission shaft are connected with power spare and screen drum transmission respectively.
According to a further technical scheme, a belt transmission pair is connected between one end of the transmission shaft and the power piece in a transmission manner, and a gear transmission pair is connected between the other end of the transmission shaft and the screen drum in a transmission manner.
Further technical scheme, the dispersion subassembly includes the pivot, pivot and screen drum rotate to be connected, pivot fixedly connected with a plurality of stirring piece.
According to a further technical scheme, the elastic component comprises a sliding piece, the sliding piece is in sliding connection with the limiting piece, an elastic piece is connected between the sliding piece and the limiting piece, and a connecting component is connected between the sliding piece and the roller.
Further technical scheme, coupling assembling includes the support, the one end fixedly connected with support of cylinder, support fixedly connected with second connecting axle, the second connecting axle rotates with the slider to be connected, the axis of second connecting axle coincides with the central line of cylinder.
Further technical scheme, the drive assembly includes rack board, rack board and locating part fixed connection, the one end fixedly connected with gear of second connecting axle, gear and rack board meshing transmission.
Further technical scheme, the side terminal surface of stirring piece is the arcwall face, just be provided with a plurality of through-hole on the arcwall face of stirring piece.
Compared with the prior art, the invention has the following beneficial effects:
according to the drum sand screening machine for the building, provided by the invention, the driving mechanism drives the screen drum to rotate, the screen drum screens sand and stones through centrifugal force, meanwhile, the dispersing assembly and the screen drum reversely rotate under the driving of the driving mechanism, and the dispersing assembly disperses and air-dries the sand and stones in the screen drum, so that the screening effect is improved; the screened fine sand particles fall into the roller from the shell through the discharging pipe, the screen drum drives the guide rail to rotate, the guide rail drives the connecting shaft to swing reciprocally around the connecting rod, so that the connecting rod and the elastic component cooperate to drive the roller to oscillate reciprocally in the limiting piece, thereby carrying out secondary screening on the sand and stone, and meanwhile, the roller can rotate reciprocally under the drive of the transmission component, thereby increasing the oscillating separation effect of the sand and stone in the roller; the drum sand screening machine for the building can realize multiple screening through one power piece, and can effectively reduce energy loss.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a right side partial schematic view of FIG. 1;
FIG. 3 is a three-dimensional schematic of a portion of the structure of FIG. 1;
FIG. 4 is a schematic view of the dispersion assembly of FIG. 1;
fig. 5 is a schematic structural view of the stirring member in fig. 1.
In the accompanying drawings: the device comprises a workbench 1, a shell 2, a primary screening mechanism 3, a screening cylinder 4, a dispersing assembly 5, a driving mechanism 6, a secondary screening mechanism 7, a roller 8, a fixing piece 9, a connecting rod 10, a first connecting shaft 11, a guide rail 12, a limiting piece 13, an elastic assembly 14, a transmission assembly 15, a power piece 16, a transmission shaft 17, a through hole 18, a belt transmission pair 19, a gear transmission pair 20, a rotating shaft 21, a stirring piece 22, a sliding piece 23, a connecting assembly 24, a rack plate 25, an elastic piece 26, a bracket 27, a second connecting shaft 28, a gear 29, a collecting tank 30, an electric control door 31 and a discharging pipe 32.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Specific implementations of the invention are described in detail below in connection with specific embodiments.
As shown in fig. 1 to 3, the invention provides a drum sand screening machine capable of reducing energy loss for construction, which comprises a workbench 1 and a shell 2, and further comprises:
the first-stage screening mechanism 3, the shell 2 is fixedly connected with the workbench 1, the first-stage screening mechanism 3 comprises a screen drum 4, an electric control door 31 is arranged on the side end face of the screen drum 4, the screen drum 4 is rotationally connected with the shell 2, a dispersing component 5 is arranged in the screen drum 4, a driving mechanism 6 is connected between the screen drum 4 and the dispersing component 5, and the driving mechanism 6 is used for driving the screen drum 4 and the dispersing component 5 to reversely rotate;
the secondary screening mechanism 7 comprises a roller 8, a discharging pipe 32 is arranged on the side end face of the shell 2, one end of the discharging pipe 32 is opposite to the roller 8, a fixing piece 9 is connected to the outer side of the roller 8 in a rotating mode, a connecting rod 10 is connected to the fixing piece 9 in a rotating mode, a first connecting shaft 11 is arranged on the side end face of the shell 2, the first connecting shaft 11 is connected with a sliding groove on the connecting rod 10 in a sliding penetrating mode, a guide rail 12 is fixedly connected to the screen drum 4, the rotation center of the first connecting shaft 11 is close to the guide rail 12, and meanwhile the fixing piece 9 is far away from the rotation center of the first connecting shaft 11;
the bottom side end surface of the guide rail 12 is a curved surface, and one end of the connecting rod 10 is in sliding connection with the curved surface of the guide rail 12;
one side of the roller 8 is provided with a limiting part 13, an elastic component 14 and a transmission component 15 are connected between the roller 8 and the limiting part 13, the roller 8 can perform reciprocating oscillation under the action of the elastic component 14, meanwhile, the roller 8 can perform reciprocating rotation under the drive of the transmission component 15, and a collecting tank 30 is arranged on one side of the roller 8 and one side of the limiting part 13.
According to the drum sand screening machine capable of reducing energy loss for the building, sand and stones are poured into the screen drum 4, the screen drum 4 is driven to rotate by the driving mechanism 6, the screen drum 4 carries out screening treatment on the sand and stones by centrifugal force, meanwhile, the dispersing assembly 5 and the screen drum 4 reversely rotate under the driving of the driving mechanism 6, and the dispersing assembly 5 carries out dispersing and air drying treatment on the sand and stones in the screen drum 4, so that the screening effect is improved; the screened fine sand particles fall into the roller 8 from the shell 2 through the discharging pipe 32, the screen drum 4 drives the guide rail 12 to rotate, the guide rail 12 drives the connecting rod 10 to swing reciprocally around the first connecting shaft 11, so that the connecting rod 10 and the elastic component 14 cooperate to drive the roller 8 to oscillate reciprocally in the limiting piece 13, thereby carrying out secondary screening on the sand and stone, and meanwhile, the roller 8 can rotate reciprocally under the drive of the transmission component 15, thereby increasing the oscillating separation effect of the sand and stone in the roller 8; after screening, the sand and stones with larger volume screened in the screen drum 4 can be discharged from the discharge pipe 32 after the electric control door 31 is opened.
In the embodiment of the present invention, as shown in fig. 1, as a preferred embodiment of the present invention, the driving mechanism 6 includes a power member 16 for providing a rotational force, the power member 16 is fixedly connected with the dispersing assembly 5, a transmission shaft 17 is rotatably connected to a side end surface of the housing 2, and two ends of the transmission shaft 17 are respectively in transmission connection with the power member 16 and the screen drum 4; the power piece 16 is preferably a rotating motor, and the power piece 16 drives the dispersing assembly 15 to rotate, so that sand and stones in the screen drum 4 are dispersed and air-dried, and the screening effect is improved.
In the embodiment of the present invention, as shown in fig. 1, as a preferred embodiment of the present invention, a belt transmission pair 19 is drivingly connected between one end of the transmission shaft 17 and the power member 16, and a gear transmission pair 20 is drivingly connected between the other end of the transmission shaft 17 and the screen drum 4; the power piece 16 drives the transmission shaft 17 to rotate through the belt transmission pair 19, and the transmission shaft 17 drives the screen drum 4 to rotate through the gear transmission pair 20, so that sand and stones in the screen drum 4 are screened under the action of centrifugal force.
In the embodiment of the present invention, as shown in fig. 4, as a preferred embodiment of the present invention, the dispersing assembly 5 includes a rotating shaft 21, the rotating shaft 21 is rotatably connected with the screen drum 4, and a plurality of stirring members 22 are fixedly connected to the rotating shaft 21; the power piece 16 drives the rotating shaft 21 to rotate, the rotating shaft 21 drives all stirring pieces 22 to stir and disperse sand and stone, and the sand and stone can be contacted with air in the stirring process to realize air drying treatment.
In the embodiment of the present invention, as shown in fig. 2, as a preferred embodiment of the present invention, the elastic assembly 14 includes a sliding member 23, the sliding member 23 is slidably connected with the limiting member 13, an elastic member 26 is connected between the sliding member 23 and the limiting member 13, and a connecting assembly 24 is connected between the sliding member 23 and the roller 8; the sliding piece 23 is a rectangular sliding block, the elastic piece 26 is preferably a spring, and the sliding piece 23 is connected with the roller 8, so that the roller 8 can be guided and limited while the sliding piece 23 is guided by the limiting piece 13, and the roller 8 can vertically reciprocate under the action of the connecting rod 10 and the elastic piece 26.
In the embodiment of the present invention, as shown in fig. 1 and 3, as a preferred embodiment of the present invention, the connection assembly 24 includes a bracket 27, one end of the drum 8 is fixedly connected to the bracket 27, the bracket 27 is fixedly connected to a second coupling shaft 28, the second coupling shaft 28 is rotatably connected to the sliding member 23, and an axis of the second coupling shaft 28 coincides with a center line of the drum 8; the connection of the drum 8 to the slide 23 is achieved by means of the second coupling shaft 28 and the bracket 27.
In the embodiment of the present invention, as shown in fig. 2, as a preferred embodiment of the present invention, the transmission assembly 15 includes a rack plate 25, the rack plate 25 is fixedly connected with the limiting member 13, one end of the second connecting shaft 28 is fixedly connected with a gear 29, and the gear 29 is meshed with the rack plate 25 for transmission; when the sliding member 23 oscillates reciprocally in the limiting member 13, the gear 29 rotates reciprocally under the driving of the rack plate 25, so that the gear 29 drives the drum 8 to rotate reciprocally, thereby increasing the oscillating separation effect of the sand and stones in the drum 8.
In the embodiment of the present invention, as shown in fig. 5, as a preferred embodiment of the present invention, the side end surface of the stirring piece 22 is an arc surface, and a plurality of through holes 18 are provided on the arc surface of the stirring piece 22; when stirring piece 22 stirs the sand and stone, can throw the sand and stone slant through the arcwall face of stirring piece 22 to increase the mixing effect between the sand and stone, thereby make the sand and stone fully collide the dispersion, simultaneously sand and stone when contacting with stirring piece 22, can increase the air-dry effect of sand and stone through the air current in through-hole 18, can change the motion track of sand and stone under the effect of air current in through-hole 18 simultaneously, thereby further increase the mixing effect between the sand and stone.
The power piece 16 drives the transmission shaft 17 to rotate through the belt transmission pair 19, the transmission shaft 17 drives the screen drum 4 to rotate through the gear transmission pair 20, so that sand and stones in the screen drum 4 are screened under the action of centrifugal force, meanwhile, the power piece 16 drives the rotating shaft 21 to rotate, the rotating shaft 21 drives all stirring pieces 22 to stir and disperse the sand and stones, and meanwhile, the sand and stones can be contacted with air in the stirring process to realize air drying treatment; the fine sand particles screened out fall into the roller 8 from the shell 2 through the discharging pipe 32, the screen cylinder 4 drives the guide rail 12 to rotate, the guide rail 12 drives the first connecting shaft 11 to swing reciprocally around the connecting rod 10, so that the connecting rod 10 and the elastic component 14 cooperate to drive the roller 8 to oscillate reciprocally in the limiting piece 13, thereby carrying out secondary screening on the sand and stone, and meanwhile, the roller 8 can rotate reciprocally under the drive of the transmission component 15, so that the oscillating separation effect of the sand and stone in the roller 8 is increased.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (5)
1. Can reduce energy loss's drum sand screening machine for building, including workstation and shell, its characterized in that still includes:
the shell is fixedly connected with the workbench, the primary screening mechanism comprises a screening cylinder, the screening cylinder is rotationally connected with the shell, a dispersing assembly is arranged in the screening cylinder, a driving mechanism is connected between the screening cylinder and the dispersing assembly, and the driving mechanism is used for driving the screening cylinder and the dispersing assembly to reversely rotate;
the secondary screening mechanism comprises a roller, wherein a fixing piece is rotationally connected to the outer side of the roller, a connecting rod is rotationally connected to the fixing piece, a first connecting shaft is arranged on the side end face of the shell, the first connecting shaft is in sliding and penetrating connection with a sliding groove on the connecting rod, a guide rail is fixedly connected to the screen drum, the rotation center of the first connecting shaft is close to the guide rail, and meanwhile the fixing piece is far away from the rotation center of the first connecting shaft;
the end face of the bottom side of the guide rail is a curved surface, and one end of the connecting rod is in sliding connection with the curved surface of the guide rail; one side of the roller is provided with a limiting piece, an elastic component and a transmission component are connected between the roller and the limiting piece, the roller can perform reciprocating oscillation under the action of the elastic component, and meanwhile, the roller can perform reciprocating rotation under the drive of the transmission component;
the screen cylinder drives the guide rail to rotate, and the guide rail drives the connecting rod to swing reciprocally around the first connecting shaft, so that the connecting rod and the elastic component cooperate to drive the roller to oscillate reciprocally in the limiting piece;
the elastic component comprises a sliding part, the sliding part is in sliding connection with the limiting part, the elastic part is connected between the sliding part and the limiting part, and the connecting component is connected between the sliding part and the roller;
the connecting assembly comprises a bracket, one end of the roller is fixedly connected with the bracket, the bracket is fixedly connected with a second connecting shaft, the second connecting shaft is rotationally connected with the sliding piece, and the axis of the second connecting shaft coincides with the central line of the roller;
the transmission assembly comprises rack plates, the rack plates are fixedly connected with the limiting piece, one end of the second connecting shaft is fixedly connected with a gear, and the gear and the rack plates are meshed for transmission.
2. The rotary screen sand machine for construction capable of reducing energy loss according to claim 1, wherein the driving mechanism comprises a power piece for providing a rotating force, the power piece is fixedly connected with the dispersing assembly, the side end face of the shell is rotatably connected with a transmission shaft, and two ends of the transmission shaft are respectively in transmission connection with the power piece and the screen drum.
3. The rotary screen sand machine for construction capable of reducing energy loss according to claim 2, wherein a belt transmission pair is connected between one end of the transmission shaft and the power piece in a transmission manner, and a gear transmission pair is connected between the other end of the transmission shaft and the screen drum in a transmission manner.
4. The drum sand screening machine for construction capable of reducing energy loss according to claim 1, wherein the dispersing assembly comprises a rotating shaft, the rotating shaft is rotatably connected with the screen drum, and the rotating shaft is fixedly connected with a plurality of stirring pieces.
5. The drum sand screening machine for building capable of reducing energy loss according to claim 4, wherein the side end face of the stirring piece is an arc-shaped face, and a plurality of through holes are formed in the arc-shaped face of the stirring piece.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111138306.XA CN113770018B (en) | 2021-09-27 | 2021-09-27 | Can reduce energy loss's drum sand screening machine for building |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111138306.XA CN113770018B (en) | 2021-09-27 | 2021-09-27 | Can reduce energy loss's drum sand screening machine for building |
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| CN113770018A CN113770018A (en) | 2021-12-10 |
| CN113770018B true CN113770018B (en) | 2023-05-02 |
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| CN115193687B (en) * | 2022-09-16 | 2023-06-20 | 泗洪星耀制造有限公司 | Screening device for valve fitting machining |
| CN115957853B (en) * | 2023-01-05 | 2024-04-30 | 玖龙纸业（乐山）有限公司 | Starch residue recovery device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6359156B1 (en) * | 2017-06-30 | 2018-07-18 | 株式会社御池鐵工所 | Rotation separator |
| CN207430180U (en) * | 2017-10-26 | 2018-06-01 | 重庆秦安铸造有限公司 | A kind of stirring barrel structure for material stirring |
| CN207971066U (en) * | 2017-12-11 | 2018-10-16 | 中宁县鑫杞航农业发展有限公司 | A kind of oscillatory type Tea screening machine |
| CN208574893U (en) * | 2018-06-26 | 2019-03-05 | 温州智权工业设计有限公司 | One cultivates peanut shell soil cleaning plant |
| CN209139122U (en) * | 2018-09-29 | 2019-07-23 | 四川达虹宇建筑工程有限公司 | A kind of engineering sandstone screening plant |
| CN210788187U (en) * | 2019-11-07 | 2020-06-19 | 林晓园 | Building gravel and sand separation sieving mechanism |
| CN212041359U (en) * | 2020-04-22 | 2020-12-01 | 平罗县髙仁乐海山西瓜专业合作社 | Watermelon is planted and uses seed sieving mechanism |
| CN111646250A (en) * | 2020-06-01 | 2020-09-11 | 方家铺子（莆田）绿色食品有限公司 | Rice screening equipment for packing |
| CN111774282A (en) * | 2020-07-15 | 2020-10-16 | 李冰 | Chemical industry granule product production screening plant |
| CN111940287A (en) * | 2020-08-11 | 2020-11-17 | 刘贤华 | Screening gravel and sand equipment is used in building site construction |
| CN213255573U (en) * | 2020-09-01 | 2021-05-25 | 四川省龙森中药业有限公司 | Chinese herbal medicine sieving mechanism |
| CN213612500U (en) * | 2020-10-22 | 2021-07-06 | 武汉径河化工有限公司 | Rubber auxiliary agent production purification device |
| CN113198314B (en) * | 2021-05-06 | 2022-04-26 | 浙江兰电环保集团有限公司 | Stirring device suitable for semidry desulfurization |
| CN113351475B (en) * | 2021-06-29 | 2022-11-11 | 三峡大学 | Roller stone screening machine |
| CN113351485A (en) * | 2021-08-10 | 2021-09-07 | 潍坊市工程技师学院 | Screening device applying electronic technology |
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Effective date of registration: 20230406 Address after: North of Xiduan Road, Liyuan Village, Lepingpu Town, Chiping District, Liaocheng City, Shandong Province, 252000 Applicant after: Liaocheng Chiping District Fenghe Building Materials Co.,Ltd. Address before: 266199 No. 28 Hechuan Road, Licang District, Jinan City, Shandong Province Applicant before: QINGDAO KANGTINE CONSTRUCTION GROUP Co.,Ltd. |
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