Drum-type wet-mixed mortar screening device

Abstract

The utility model discloses a drum-type wet-mixed mortar screening device, and belongs to the technical field of engineering construction equipment. The drum-type wet-mixed mortar screening device comprises a support, a drum body is fixedly connected to the support, a sand screening mechanism is rotationally connected into the drum body, screened sand and stones are gathered to the bottom of the drum body through the drum body, and the sand and stones can be prevented from overflowing during screening; the sand screening mechanism comprises a rotating shaft and a cylindrical sand screening net; the rotating shaft is connected to the interior of a cylinder of the cylindrical sand screening net through a connecting piece, the connecting piece comprises a first connecting frame connected to a shaft body of the rotating shaft in the radial direction and a connecting ring connected to the top end of the first connecting frame, and the cylinder face of the sand screening net is connected to the ring face of the connecting ring. The inner wall of the sand screening net is further vertically connected with a spiral supporting plate, the supporting effect on the sand screening net is achieved, the sand screening net is prevented from being pressed and deformed due to the weight of sand, and the spiral material guiding effect can also be achieved. The technical problem that in the prior art, when mortar is screened, foreign matter on a screen is not discharged thoroughly or screening is not timely is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to engineering construction equipment technical field more specifically, it is a kind of drum-type wet-mix mortar sand screening device. BACKGROUND

[0002] Sand mortar sand screening is an important link in the process of building construction, mainly involves the sand in mortar is screened and handled. Simply speaking, it is to screen the sand in mortar through screen mesh to remove large particles, debris and impurities in it, to ensure that the particles of sand are uniform and free of impurities, so as to improve the strength and toughness of mortar.

[0003] After searching, the patent publication No. CN210632416U utility model discloses a concrete sand screening equipment, especially relates to a new type of drum sand screening machine, which comprises a framework and a first screen mesh, the framework is circular structure and is provided with a plurality of, a plurality of through holes are arranged on the framework, a plurality of frameworks are arranged at intervals and the center of the circle is on the same straight line, the first screen mesh is fixed outside the plurality of frameworks and forms a cylindrical structure, further comprising a swivel ring, a second screen mesh and an adjusting member, the swivel ring is provided with two, the swivel ring is formed by fixedly connecting the head of strip-shaped plate, the inner diameter of the swivel ring is consistent with the outer diameter of the framework and is sleeved on the framework at the end, the second screen mesh has the same mesh diameter as the first screen mesh, the second screen mesh is arranged around and fixed on the two swivel rings, the second screen mesh is arranged in close contact with the first screen mesh, and the adjusting member is fixed on the swivel ring, and the output end of the adjusting member penetrates the swivel ring and the through hole of the framework to connect the two. The utility model tilts the sandstone from the first screen mesh to the first screen mesh in the operation process, and then completes the sandstone screening. Although the first screen mesh is inclined to facilitate the flow of sandstone, when the inclination angle is low, the discharge is not complete, when the angle is large, the sandstone flows too fast through the screen mesh, which leads to the screening not in time. Secondly, the motor arranged for driving the screen mesh to rotate is directly arranged on the lower side of the inclined screen mesh, that is, the outlet position of the large particle sandstone, and such arrangement has certain influence on the discharge of the large particle sandstone of the screen mesh, and is not conducive to the cleaning and maintenance of the inside of the screen mesh. Moreover, the above-mentioned equipment does not set the shell outside the screen mesh. Since the screen mesh needs to be screened by rotating motion, when the outside has no shell to shield the two sides to a certain extent, the screened sandstone is easy to be thrown out of the hopper during the rotating process, which affects the recycling effect of the screened sandstone. UTILITY MODEL CONTENTS

[0004] 1. The technical problem to be solved by the utility model

[0005] In view of the above problems in the prior art sand mortar sand screening, the utility model provides a drum-type wet-mix mortar sand screening device, which realizes the technical effect of considering complete discharge and sufficient screening through the synergistic cooperation of the cylindrical sand screening mesh and the built-in spiral support plate guiding effect.

[0006] 2、Technical solutions

[0007] To achieve the above object, the technical solutions provided by the utility model are:

[0008] A drum type wet-mixed mortar sand screening device, including support, support fixedly connected with barrel, rotatingly connected with sand screening mechanism in barrel, barrel gathers sand and gravel screened at its bottom, and can also avoid sand and gravel overflow during screening; sand screening mechanism includes rotating shaft and cylindrical sand screening net; rotating shaft is connected with the inside of cylindrical sand screening net through connecting piece, connecting piece includes connecting frame one radially connected with rotating shaft shaft body and connecting ring connected with the top end of connecting frame one, and the cylinder surface of sand screening net is connected with the torus of connecting ring; the inner wall of sand screening net is also vertically connected with spiral support plate, which plays the role of spiral material guiding.

[0009] Further technical solutions, sand screening net is in inclined state with sand inlet on top, and the corresponding barrel is also in inclined state, which facilitates the discharge of oversize material screened out.

[0010] Further technical solutions, the bottom barrel body of barrel is connected with box, and the bottom of box is connected with bottom box, which facilitates the discharge of undersize material screened out.

[0011] Further technical solutions, the box is triangular box with its inclined edge matching the bottom barrel body of barrel, which facilitates the discharge of undersize material.

[0012] Further technical solutions, the bottom box is a plurality of parallel boxes, and the bottom is in a closed state, which facilitates the grading and gathering of undersize material. The side of bottom box is provided with sand outlet, which facilitates the sliding of sand and avoids blockage.

[0013] 3、Beneficial effects

[0014] Compared with the prior art, the technical solutions provided by the utility model have the following beneficial effects:

[0015] (1) The drum type wet-mixed mortar sand screening device of the utility model, sand is transported through the feeding conveyor, enters the sand screening mechanism along the sand inlet, the driving motor works to drive the sand screening net to rotate continuously, the sand slides down along the sand screening net, and in this process, the sand is continuously turned over along with the sand screening net, falls into the box from the gap, and slides down along the side slope of the bottom box, falls into the discharging conveyor from the sand outlet, completes the whole sand screening process, and the feeding and discharging process and the sand screening process are connected in series through the transmission mechanism, the efficiency of sand screening is improved, and the volume of sand containing can be further increased through the drum type screening mechanism, and the screening efficiency is further improved.

[0016] (2) The drum type wet-mixed mortar sand screening device, the sand screening mechanism is rotationally connected in the cylinder, the cylinder gathers the screened sand and stone at the bottom thereof to facilitate discharging, and also plays a role of sand and stone overflow during screening; the spiral support plate plays a role of spiral material guiding, improves discharging efficiency, and completely discharges.

[0017] (3) The drum type wet-mixed mortar sand screening device, the sand screening device is provided in an inclined manner, so that large-particle stones and other foreign matters screened out can slide down along the sand screening net and be discharged along the discharge port, without the need of adding a vibration device to discharge the foreign matters, thereby reducing production cost. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Fig. 1 is a schematic diagram of the overall structure of the drum type wet-mixed mortar sand screening device of the embodiment;

[0019] Figure 2 Fig. 2 is a schematic diagram of the top view structure of the drum type wet-mixed mortar sand screening device of the embodiment;

[0020] Figure 3 Fig. 3 is a schematic diagram of the connecting ring structure of the embodiment;

[0021] Figure 4 Fig. 4 is a schematic diagram of the side view structure of the drum type wet-mixed mortar sand screening device of the embodiment.

[0022] In the figure: 1, feeding conveyor belt; 2, cylinder; 3, sand screening mechanism; 301, connecting ring; 302, sand screening net; 303, support plate; 304, rotating shaft; 305, discharge port; 306, sand inlet; 307, connecting frame one; 4, box body; 5, support; 6, bottom box; 7, discharging conveyor belt; 8, connecting frame two; 9, driving motor; 10, sand outlet. DETAILED DESCRIPTION

[0023] In order to further understand the content of the utility model, the utility model is described in detail in combination with the drawings.

[0024] Embodiment 1

[0025] The drum type wet-mixed mortar sand screening device of the embodiment, like Figure 1 , 2, 3, 4, including a bracket 5, the bracket 5 is fixedly connected with a barrel 2, the barrel 2 is rotatably connected with a sand screening mechanism 3, the barrel 2 gathers the sand and stone screened on the bottom thereof, and overflow of the sand and stone during screening can be avoided; the sand screening mechanism 3 comprises a rotating shaft 304 and a cylindrical sand screening net 302, that is, the sand screening net 302 is a long cylindrical net; the rotating shaft 304 is connected to the inside of the net through a connecting piece, the connecting piece comprises a plurality of connecting frames one 307 radially connected to the shaft body of the rotating shaft 304, the connecting frames one 307 are arranged at equal distances in the radial direction, and a connecting ring 301 connected to the top end of the connecting frames one 307, the connecting frames one 307 are radially arranged with the rotating shaft 304 as the center, and in this embodiment, the connecting frames one 307 are cross-shaped; the size of the gap in the sand screening net 302 can be selected according to the particle size of the sand; the cylindrical surface of the net is connected to the outer surface of the connecting ring 301; the inner wall of the net is further vertically connected with a helical support plate 303, which supports the sand screening net 302, prevents the sand screening net 302 from being deformed under pressure due to the weight of the sand, and also plays a role of spiral material guiding. A connecting frame two 8 is fixedly installed above the bracket 5 at the discharge end of the barrel 2, a driving motor 9 is fixedly installed on the connecting frame two 8, and the output shaft of the driving motor 9 is connected to the rotating shaft 304 through a belt transmission, avoiding the discharge port 305, not affecting the discharge of large particle sand and stone by the sand screening net 302, and being beneficial to the cleaning and maintenance of the inside of the sand screening net 302. The bottom of the barrel 2 is connected to and communicates with a box body 4, the bottom of the box body 4 is connected to and communicates with a bottom box 6, and the discharge of the undersize material screened is facilitated. A feeding conveyor belt 1 is installed on one side of the sand inlet at the feeding end of the sand screening net 302, and a discharge conveyor belt 7 is arranged at the bottom position of the bottom box 6.

[0026] In use, the mortar is transported by the feeding conveyor belt at the sand inlet 306, enters the sand screening mechanism 3 along the sand inlet 306, the driving motor 9 works, and drives the sand screening net 302 to rotate continuously, the sand slides down along the sand screening net 302, and in this process, the sand is continuously turned over along with the sand screening net 302, falls into the box body 4 from the mesh gap, and slides down along the side slope of the bottom box 6, and falls onto the discharge conveyor belt 7 from the sand outlet 10 at the bottom of the bottom box 6, the large particle stones and other foreign matters screened are discharged from the discharge port 305 below the barrel 2 and the net, and the whole sand screening process is completed, the feeding, discharging and sand screening processes are connected in series by using a transmission mechanism, the efficiency of sand screening is improved, and the volume of the sand contained can be further increased by using the drum type screening mechanism, and the screening efficiency is further improved.

[0027] Embodiment 2

[0028] The drum type wet-mixed mortar sand screening device of the embodiment is basically the same as that of embodiment 1, and the difference or improvement lies in that Figure 1As shown, the sand screen 302 is in an inclined state with the sand inlet 306 on top, and the corresponding barrel 2 is also in an inclined state, facilitating the discharge of the screened material. The inclination angle is preferably 20-50°. The box 4 is a triangular box with its hypotenuse matching the bottom barrel of the barrel 2, facilitating the collection and discharge of the undersize material. The mesh size of the barrel near the inlet end is larger than that near the discharge end, and the bottom box 6 is a plurality of parallel boxes with a tapered bottom, facilitating the classification and collection of the undersize material.

[0029] The above description of the present application and its embodiments is illustrative and not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the present application. The actual structure and manufacturing steps are not limited thereto. Therefore, if a person skilled in the art is inspired by the above description, and without departing from the spirit of the present application, similar structural forms and embodiments can be designed without creative design, which shall fall within the protection scope of the present application.

Claims

1. A drum-type wet-mix mortar sand screening device comprising a support (5), characterized in that: The support (5) is fixedly connected with a barrel (2), and the barrel (2) is rotatably connected with a sand screening mechanism (3); The sand screening mechanism (3) comprises a rotating shaft (304) and a cylindrical sand screening net (302); the rotating shaft (304) is connected to the inside of the cylinder of the cylindrical sand screening net (302) through a connecting piece; the connecting piece comprises a connecting frame I (307) radially connected to the shaft body of the rotating shaft (304) and a connecting ring (301) connected to the top end of the connecting frame I (307); the cylinder surface of the sand screening net (302) is connected to the annular surface of the connecting ring (301); and the inner wall of the sand screening net (302) is also vertically connected with a helical support plate (303).

2. A drum of wet-mixed mortar sand screening device according to claim 1, characterized in that: The sand screening net (302) is in an inclined state with the sand inlet (306) on the top, and the corresponding barrel (2) is also in an inclined state.

3. A drum of wet-mixed mortar sand screening device according to claim 2, characterized in that: The bottom barrel body of the barrel (2) is connected with a box body (4), and the bottom of the box body (4) is connected with a bottom box (6).

4. A drum of wet-mixed mortar sand screening device according to claim 3, characterized in that: The box body (4) is a triangular box body with its hypotenuse matching the bottom barrel body of the barrel (2).

5. A drum of wet-mixed mortar sand screening device according to claim 3 or 4, characterized in that: The bottom box (6) is a plurality of parallel boxes, and the bottom is in a closed state.

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