Dry-mixed mortar sand screening device

Abstract

The utility model relates to the technical field of dry-mixed mortar, in particular to a dry-mixed mortar sand screening device which comprises a screening support, a screening groove is fixed on the screening support, a screening frame is arranged in the screening groove in a sliding mode, and a screen is arranged at the bottom of the screening frame. A first discharging pipe and a second discharging pipe are arranged on the front side face and the rear side face of the screening frame correspondingly, a first butt-joint through groove is formed in the front side face of the screening groove, a second butt-joint through groove is formed in the rear side face of the screening groove, and the first discharging pipe is arranged in the first butt-joint through groove in a sliding mode. The second discharging pipe is arranged in the second butt-joint through groove in a sliding mode. The dry-mixed mortar sand screening device disclosed by the utility model has relatively high screening efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of dry-mixed mortar, and particularly relates to a screening device for dry-mixed mortar sand materials. Background Art

[0002] Dry-mixed mortar refers to a granular or powdery material that is physically mixed in a certain proportion by dried and screened aggregates (such as quartz sand), inorganic binders (such as cement), and additives (such as polymers), etc., and is transported to the construction site in the form of bags or bulk, and can be directly used after adding water and mixing. Before mixing, the sand materials need to be screened to remove the unqualified particles inside. In the existing screening devices, the screening relies on the self-gravity of the sand materials, and the screening efficiency is relatively low. Content of the Utility Model

[0003] Objective of the utility model: The utility model provides a screening device for dry-mixed mortar sand materials, which has a relatively high screening efficiency.

[0004] To achieve the above objective, the technical solution of the utility model is as follows:

[0005] A screening device for dry-mixed mortar sand materials includes a screening support, on which a screening trough is fixed. Inside the screening trough, a sieve frame is slidably arranged, and a sieve mesh is arranged at the bottom of the sieve frame;

[0006] On the front and rear sides of the sieve frame, a first discharge pipe and a second discharge pipe are respectively arranged. On the front side of the screening trough, a first docking through groove is opened, and on the rear side thereof, a second docking through groove is opened. The first discharge pipe is slidably arranged inside the first docking through groove, and the second discharge pipe is slidably arranged inside the second docking through groove;

[0007] On both sides of the screening trough, a first limiting guide rail and a second limiting guide rail are symmetrically arranged. On the front side of the sieve frame, a plurality of first sliding rods are fixed. At one end of the first sliding rod, a first guiding wheel is rotationally limited, and the first guiding wheel is rotationally clamped on the first limiting guide rail. On the rear side of the sieve frame, a plurality of second sliding rods are fixed. At one end of the second sliding rod, a second guiding wheel is rotationally limited, and the second guiding wheel is rotationally clamped on the second limiting guide rail.

[0008] As an improvement: both the first discharge pipe and the second discharge pipe are arranged in an inclined shape.

[0009] As an improvement: at the opening of the first docking through groove, a first receiving trough is arranged, and the first receiving trough is fixed on the front side of the screening trough. At the opening of the second docking through groove, a second receiving trough is arranged, and the second receiving trough is fixed on the rear side of the screening trough.

[0010] As an improvement, a screening cylinder is horizontally arranged on the right side surface of the screening tank, and the piston rod of the screening cylinder is fixedly connected to the right side surface of the screen frame.

[0011] As an improvement, a telescopic cylinder is horizontally arranged on the rear side surface of the screen frame, and a rake is fixed on the piston rod of the telescopic cylinder.

[0012] As an improvement, a discharge funnel is arranged below the screening tank, a discharge pipe is arranged at the bottom of the discharge funnel, a spiral discharge fan blade is arranged inside the discharge pipe, the spiral discharge fan blade is connected to a discharge motor through a transmission shaft, and the discharge motor is vertically and upwardly fixed on the screening support through a support plate.

[0013] As an improvement, a plurality of hydraulic cylinders are arranged below the screening support, and universal wheels are arranged below the hydraulic cylinders.

[0014] In summary, the utility model has the following beneficial effects:

[0015] 1. Put the sand material on the screen mesh, start the screening cylinder to drive the screen frame to move back and forth in the screening tank, so that the qualified materials can be quickly screened into the discharge funnel;

[0016] 2. The telescopic cylinder can drive the rake to move back and forth above the screen mesh, so as to break the caked materials on the screen mesh and push the large particle materials to the first discharge pipe and the second discharge pipe at the same time;

[0017] 3. A spiral discharge fan blade is arranged inside the discharge pipe, and the spiral discharge fan blade is driven to rotate by the discharge motor, so that the materials in the screening tank can be quickly discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art.

[0019] Figure 1 Schematic diagram of the overall structure of a dry-mixed mortar sand material screening device Figure I ;

[0020] Figure 2 Schematic diagram of the overall structure of a dry-mixed mortar sand material screening device Figure II ;

[0021] Figure 3 Cross-sectional view of a dry-mixed mortar sand material screening device;

[0022] Among them: 1. Screening bracket; 2. Screening trough; 3. Screening frame; 4. Screening mesh; 5. First discharge pipe; 6. Second discharge pipe; 7. First docking through groove; 8. Second docking through groove; 9. First limiting guide rail; 10. Second limiting guide rail; 11. Universal pulley; 12. First sliding rod; 13. Second sliding rod; 14. First guiding wheel; 15. Second guiding wheel; 16. First receiving trough; 17. Second receiving trough; 18. Screening cylinder; 19. Telescopic cylinder; 20. Rake; 21. Discharge funnel; 22. Discharge pipe; 23. Screw discharge fan blade; 24. Discharge motor; 25. Hydraulic cylinder. Detailed implementation manner

[0023] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] Please refer to Figures 1 - 3 , a dry-mixed mortar sand screening device, including a screening bracket 1, a screening trough 2 is fixed on the screening bracket 1, a screening frame 3 is slidably arranged inside the screening trough 2, and a screening mesh 4 is arranged at the bottom of the screening frame 3;

[0025] First discharge pipes 5 and second discharge pipes 6 are respectively arranged on the front and rear side surfaces of the screening frame 3. A first docking through groove 7 is formed on the front side surface of the screening trough 2, and a second docking through groove 8 is formed on the rear side surface thereof. The first discharge pipe 5 is slidably arranged inside the first docking through groove 7, and the second discharge pipe 6 is slidably arranged inside the second docking through groove 8;

[0026] First limiting guide rails 9 and second limiting guide rails 10 are symmetrically arranged on both sides of the screening trough 2. A plurality of first sliding rods 12 are fixed on the front side surface of the screening frame 3. A first guiding wheel 14 is rotationally limited at one end of the first sliding rod 12, and the first guiding wheel 14 is rotationally clamped on the first limiting guide rail 9. A plurality of second sliding rods 13 are fixed on the rear side surface of the screening frame 3. A second guiding wheel 15 is rotationally limited at one end of the second sliding rod 13, and the second guiding wheel 15 is rotationally clamped on the second limiting guide rail 10. In this embodiment, the sand material is placed on the screening mesh 4, and the screening cylinder is started to drive the screening frame 3 to move back and forth in the screening trough 2, so that the qualified materials can be quickly screened into the discharge funnel;

[0027] Both the first discharge pipe 5 and the second discharge pipe 6 are arranged in an inclined shape.

[0028] A first receiving trough 16 is arranged at the opening of the first docking through groove 7, and the first receiving trough 16 is fixed on the front side surface of the screening trough 2. A second receiving trough 17 is arranged at the opening of the second docking through groove 8, and the second receiving trough 17 is fixed on the rear side surface of the screening trough 2. In this embodiment, the unqualified materials can fall into the first receiving trough 16 and the second receiving trough 17 respectively through the first discharge pipe 5 and the second discharge pipe 6.

[0029] On the right side surface of the screening tank 2, a screening cylinder 18 is horizontally provided, and the piston rod of the screening cylinder 18 is fixedly connected to the right side surface of the sieve frame 3.

[0030] On the rear side surface of the sieve frame 3, a telescopic cylinder 19 is horizontally provided, and a rake 20 is fixed on the piston rod of the telescopic cylinder 19. In this embodiment, the telescopic cylinder 19 can drive the rake 20 to move back and forth above the sieve mesh 4, thereby breaking the agglomerated materials on the sieve mesh 4 and at the same time pushing the large particle materials to the first discharge pipe 5 and the second discharge pipe 6.

[0031] Below the screening tank 2, a discharge funnel 21 is provided. At the bottom of the discharge funnel 21, a discharge pipe 22 is provided. Inside the discharge pipe 22, a spiral discharge fan blade 23 is provided. The spiral discharge fan blade 23 is connected to a discharge motor 24 through a transmission shaft, and the discharge motor 24 is vertically fixed upward on the screening support 1 through a support plate. In this embodiment, inside the discharge pipe 22, a spiral discharge fan blade 23 is provided. By driving the spiral discharge fan blade 23 to rotate through the discharge motor 24, the materials in the screening tank 2 can be quickly discharged.

[0032] Below the screening support 1, a plurality of hydraulic cylinders 25 are provided, and universal wheels 11 are provided below the hydraulic cylinders 25. In this embodiment, the height of the entire device can be adjusted through the hydraulic cylinders, and the position of the entire device can be adjusted through the universal wheels 11, so that the device can be used for screening requirements in a variety of scenarios.

[0033] Working principle: Place the sand material to be screened onto the sieve mesh 4, start the screening cylinder 18 to drive the sieve frame 3 to move back and forth in the screening tank 2. The qualified particulate matters fall into the discharge funnel 21 and are discharged to the outside of the device under the rotation of the spiral discharge fan blade 23;

[0034] The unqualified particulate matters can respectively fall into the first receiving tank 16 and the second receiving tank 17 through the first discharge pipe 5 and the second discharge pipe 6.

[0035] During the screening process, the telescopic cylinder 19 drives the rake 20 to move back and forth above the sieve mesh 4, breaking the agglomerated materials on the sieve mesh 4 and at the same time pushing the large particle materials to the first discharge pipe 5 and the second discharge pipe 6.

[0036] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that; still, the specific implementation manners of the present invention can be modified or some technical features can be equivalently replaced; without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. A dry-mix mortar sand screening device, characterized in that: It comprises a screening bracket, a screening slot is fixed on the screening bracket, a screening frame is slidably arranged inside the screening slot, and a screen is arranged at the bottom of the screening frame; A first discharge pipe and a second discharge pipe are respectively provided on the front and rear sides of the screen frame, a first butt-joint groove is provided on the front side of the screening groove, and a second butt-joint groove is provided on the rear side thereof, the first discharge pipe can be slidably arranged inside the first butt-joint groove, and the second discharge pipe can be slidably arranged inside the second butt-joint groove; A first limiting guide rail and a second limiting guide rail are symmetrically arranged on both sides of the screening trough, a plurality of first sliding bars are fixed on the front side surface of the screen frame, a first guide wheel is rotatably limited at one end of the first sliding bar, and the first guide wheel is rotatably clamped on the first limiting guide rail, a plurality of second sliding bars are fixed on the rear side surface of the screen frame, a second guide wheel is rotatably limited at one end of the second sliding bar, and the second guide wheel is rotatably clamped on the second limiting guide rail.

2. The dry-mix mortar sand screening device according to claim 1, characterized in that: The first discharge pipe and the second discharge pipe are both arranged in an inclined shape.

3. The dry-mixed mortar sand material screening device according to claim 2, characterized in that: A first receiving material trough is provided at the opening of the first pair of connecting grooves, and the first receiving material trough is fixed on the front side of the screening groove. A second receiving material trough is provided at the opening of the second pair of connecting grooves, and the second receiving material trough is fixed on the rear side of the screening groove.

4. The dry-mixed mortar sand material screening device according to claim 1, characterized in that: A screening cylinder is horizontally arranged on the right side surface of the screening tank, and a piston rod of the screening cylinder is fixedly connected to the right side surface of the screen frame.

5. The dry-mixed mortar sand material screening device according to claim 1, characterized in that: A telescopic cylinder is horizontally arranged on the rear side surface of the screen frame, and a spike rake is fixed on the piston rod of the telescopic cylinder.

6. The dry-mixed mortar sand material screening device according to claim 1, characterized in that: A discharge funnel is provided below the screening trough, a discharge pipe is provided at the bottom of the discharge funnel, a spiral discharge fan is provided inside the discharge pipe, the spiral discharge fan is connected to the discharge motor through a transmission shaft, and the discharge motor is vertically fixed upward on the screening bracket through a support plate.

7. The dry-mixed mortar sand material screening device according to claim 1, characterized in that: A plurality of hydraulic cylinders are arranged below the screening support, and a universal pulley is arranged below the hydraulic cylinders.

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