Constructional engineering river sand screening device

Abstract

The utility model discloses a river sand screening device for constructional engineering. The river sand screening device comprises a screening frame, a feeding hopper, a vibration motor, a screening plate, a concentrate bin, a pre-smashing mechanism and a dustproof device. The pre-stirring mechanism is arranged in the feeding hopper, the stirring motor is started to drive the stirring roller to rotate, when river sand is added into the hopper, caked river sand is more likely to make contact with the stirring roller due to the larger size, at the moment, the rotating stirring roller can crush sand blocks through the roller hooks, and the stirring effect is better. A dust-proof device is arranged at the top of the screen frame, a dust-proof curtain is turned upwards to cover the top of the screen frame, then a main zipper strip on the side edge of the dust-proof curtain is connected with an auxiliary zipper strip on the side edge of the screen frame, and therefore the screening effect of river sand is improved. The left and right sides of the dustproof curtain are fixed to the side wall of the screen frame, and the dustproof curtain can cover the top of the screen frame to effectively control diffusion of flying dust in the screen frame.

Description

TECHNICAL FIELD

[0001] The utility model relates to river sand screening technical field, concretely is a kind of construction engineering river sand screening device. BACKGROUND

[0002] River sand is less impurity content after long time scouring and rubbing, surface has certain smoothness, is suitable for building construction operation, river sand can mix various impurities in the natural formation process, can affect the performance and effect of river sand in subsequent use, therefore need to be screened by screening machine to river sand, ensure the purity and high quality of river sand.

[0003] The prior patent application No.:202320818890.1 a kind of river sand screening device for construction site, including base, base is rotatably installed with screening cylinder group, and the center axis of screening cylinder group is obliquely arranged, screening cylinder group includes center net cylinder, and the periphery of center net cylinder is provided with multiple groups of descending grade separation net cylinder, the inside of center net cylinder, center net cylinder and descending grade separation net cylinder between and descending grade separation net cylinder and descending grade separation net cylinder between form flow cavity, and the mesh diameter of center net cylinder and each descending grade separation net cylinder in direction from inside to outside is gradually reduced and is arranged.

[0004] The above-mentioned patent records a kind of river sand screening machine, in actual application process, river sand mined from river is more likely to exist caking phenomenon, it is difficult to shake and scatter river sand by vibration function of screening machine, lead to screening effect is not ideal, and river sand is also a lot of dust because of vibration during screening, should improve dustproof measure of screening machine, to control dust diffusion, for this, we propose a kind of construction engineering river sand screening device to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of construction engineering river sand screening device to solve the problems raised in the above background.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme: a building engineering river sand screening device, including screen frame, feed hopper, vibrating motor, sieve plate, fine material bin, pre-crushing mechanism and dustproof device, the screen frame rear part is provided with the feed hopper and is welded, the feed hopper inside is connected with the screen frame, the screen frame left and right two parts are symmetrically installed vibrating motor, the screen frame inside bottom is provided with sieve plate, the screen frame bottom bolt mounting has fine material bin, and fine material bin is located sieve plate directly below, the feed hopper inside is provided with pre-crushing mechanism, pre-crushing mechanism includes crushing motor, crushing roller, roller hook and splash-proof device, the feed hopper right side wall is installed crushing motor, the feed hopper inside is horizontally provided with crushing roller, and crushing roller both ends are rotationally connected with the feed hopper, and the crushing motor output shaft is connected with crushing roller, the crushing roller surface is distributed and is welded with roller hook, the feed hopper top surface front part brim is provided with splash-proof device, and the screen frame top is provided with dustproof device.

[0007] Preferably, the splash-proof device includes an insertion slot, a connecting seat, a plug-in slot and a baffle, the top surface of the feed hopper is provided with an insertion slot, the bottom of the connecting seat is provided with a plug-in slot, the connecting seat is longitudinally inserted into the surface of the insertion slot through the plug-in slot, and the connecting seat is locked and fixed with the insertion slot by bolts, and the rear part of the connecting seat is welded with a baffle.

[0008] Preferably, the baffle has the same length as the crushing roller, and the baffle completely covers the crushing roller.

[0009] Preferably, the baffle is inclined, and the inclination angle of the baffle is not less than 15°.

[0010] Preferably, the dustproof device includes a dustproof curtain, a main zipper and a vice zipper, the top of the screen frame is covered with a dustproof curtain, the left side of the dustproof curtain is riveted and fixed with the screen frame, the right side of the dustproof curtain is provided with a main zipper, and the top of the right side wall of the screen frame is provided with a vice zipper, and the vice zipper can be connected with the main zipper by zippers.

[0011] Preferably, the length of the dustproof curtain is not less than 80% of the length of the screen frame.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The utility model discloses a pre-crushing mechanism is arranged in the feed hopper, and the crushing motor is started to drive the crushing roller to rotate, when the river sand is added into the feed hopper, the river sand is contacted with the crushing roller more easily due to the larger size of the caked river sand, at this time, the rotating crushing roller can crush the sand lump through the roller hook, so that the crushed sand lump is more easily scattered by the screen frame, thereby improving the screening effect of the river sand.

[0014] The utility model discloses a dustproof device is set up on the top of screen frame, and the dustproof curtain is turned up and covers the top of screen frame, then the main zipper strip of dustproof curtain side is connected with the vice zipper strip of screen frame side, makes the left and right sides of dustproof curtain fixed in screen frame side wall, and the dustproof curtain can cover the top of screen frame and effectively control the diffusion of internal dust raising. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] Figure 2 It is the exploded view schematic diagram of the splashproof device in the utility model;

[0017] Figure 3 It is the right view structure schematic diagram of the crushing roller in the utility model;

[0018] Figure 4 It is the structure schematic diagram of the dustproof curtain in the utility model Figure 1 after unloading;

[0019] Figure 5 It is the dustproof curtain structure schematic diagram of the utility model.

[0020] In the drawing: screen frame - 1, feed hopper - 2, vibration motor - 3, screen plate - 4, fine material bin - 5, pre-crushing mechanism - 6, crushing motor - 61, crushing roller - 62, roller hook - 63, splashproof device - 64, insertion slot - 641, connecting seat - 642, plug-in slot - 643, baffle - 644, dustproof device - 7, dustproof curtain - 71, main zipper strip - 72, vice zipper strip - 73. DETAILED DESCRIPTION

[0021] In order to further explain the technical scheme of the utility model, the following specific embodiments are described in detail.

[0022] Please refer to Figure 1 The utility model provides a kind of construction engineering river sand screening device, including screen frame 1, feed hopper 2, vibration motor 3, screen plate 4, fine material bin 5, pre-crushing mechanism 6 and dustproof device 7, screen frame 1 rear welding is provided with feed hopper 2, the inside of feed hopper 2 is communicated with screen frame 1, screen frame 1 left and right two parts are symmetrically installed with vibration motor 3, screen frame 1 inside bottom is provided with screen plate 4, screen frame 1 bottom bolt mounting has fine material bin 5, fine material bin 5 is located just below screen plate 4, pre-crushing mechanism 6 is provided in feed hopper 2, screen frame 1 top is provided with dustproof device 7.

[0023] Please refer to Figures 2-3The utility model provides a kind of construction engineering river sand screening device, pre-stirring mechanism 6 includes stirring motor 61, stirring roller 62, roller hook 63 and splash-proof device 64, stirring motor 61 is installed to the right side wall of inlet hopper 2, stirring roller 62 is horizontally arranged in the inside of inlet hopper 2, and stirring roller 62 both ends are rotationally connected with inlet hopper 2, and stirring motor 61 output shaft is connected with stirring roller 62, roller hook 63 is welded and distributed on the surface of stirring roller 62, and roller hook 63 plays the role of crushing sand block, and splash-proof device 64 is arranged on the top surface front edge of inlet hopper 2.

[0024] Further explanation, splash-proof device 64 includes insertion slot 641, connecting seat 642, plug-in slot 643 and baffle 644, insertion slot 641 is provided on the top surface front edge of inlet hopper 2, plug-in slot 643 is horizontally provided in the bottom of connecting seat 642, connecting seat 642 is longitudinally inserted into the surface of insertion slot 641 by plug-in slot 643, and connecting seat 642 is locked and fixed with insertion slot 641 by bolt, and baffle 644 is welded on the rear part of connecting seat 642.

[0025] Further explanation, baffle 644 is same in length with stirring roller 62, and baffle 644 is completely shielded above stirring roller 62, so that baffle 644 can provide upper shielding for stirring roller 62, avoid sandstone that is poured into inlet hopper 2 directly hitting the surface of rotating stirring roller 62 to splash, and also can reduce the use loss of stirring roller 62.

[0026] Further explanation, baffle 644 is arranged in inclination, and the inclination angle of baffle 644 is not less than 15 °, which helps baffle 644 to guide sandstone into the inside of inlet hopper 2, to avoid sandstone to stay on the surface of baffle 644.

[0027] Please refer to Figures 4-5 The utility model provides a kind of construction engineering river sand screening device, dustproof device 7 includes dustproof curtain 71, main zipper 72 and vice zipper 73, and dustproof curtain 71 is riveted and fixed to the left side of screen frame 1, and main zipper 72 is installed to the right side of dustproof curtain 71, and vice zipper 73 is installed to the top along of the right side wall of screen frame 1, and vice zipper 73 can be connected with main zipper 72 by zipper, so that the left and right sides of dustproof curtain 71 are fixed on the side wall of screen frame 1 to complete laying.

[0028] Further explanation, the length of dustproof curtain 71 is not less than 80% of the length of screen frame 1, so that dustproof curtain 71 can effectively control the diffusion of dust inside screen frame 1.

[0029] Working principle is as follows:

[0030] First, first connect the vibration motor 3 and the crushing motor 61 to external control for centralized control, in use, the river sand to be processed is added into the inside of the screen frame 1 through the feeding hopper 2, at this time the vibration motor 3 is started to provide continuous vibration for the screen frame 1, so that the river sand is screened by the screen plate 4 under the action of the vibration force, wherein the river sand meeting the particle size can pass through the screen plate 4 downward and be discharged from the outlet of the fine material bin 5, and the river sand not meeting the particle size stays on the screen plate 4 and is finally discharged from the front outlet of the screen frame 1, so that the screening of river sand with different particle sizes is realized.

[0031] Second, by setting the pre-crushing mechanism 6 in the inside of the feeding hopper 2, in use, first start the crushing motor 61 to drive the crushing roller 62 to rotate, when the river sand is added into the feeding hopper 2, the caked river sand is more likely to contact the crushing roller 62 due to the larger size, at this time the rotating crushing roller 62 can crush the sand lump through the roller hook 63, so that the crushed sand lump is more easily scattered by the screen frame 1, thereby improving the screening effect of the river sand.

[0032] Third, by setting the splash-proof device 64 on the top front edge of the feeding hopper 2, the baffle 644 in the splash-proof device 64 can provide upper shielding for the crushing roller 62, avoid the sand and stone poured into the feeding hopper 2 from directly splashing on the surface of the rotating crushing roller 62, and reduce the use loss of the crushing roller 62, when the crushing roller 62 is overhauled, the connecting bolts connecting the insertion slot 641 and the connecting seat 642 are removed, the connecting seat 642 and the baffle 644 are removed from the inside of the feeding hopper 2, the crushing roller 62 is completely exposed by the shielding of the baffle 644, and the overhauling operation is facilitated.

[0033] Fourth, by setting the dust-proof device 7 on the top of the screen frame 1, before use, first turn up the dust-proof curtain 71 to cover the top of the screen frame 1, then connect the main zipper strip 72 on the side of the dust-proof curtain 71 with the auxiliary zipper strip 73 on the side of the screen frame 1, so that the left and right sides of the dust-proof curtain 71 are fixed on the side walls of the screen frame 1, the dust-proof curtain 71 can cover the top of the screen frame 1 to effectively control the diffusion of dust inside, when the screen plate 4 is cleaned, the main zipper strip 72 and the auxiliary zipper strip 73 are pulled apart, and the dust-proof curtain 71 is lifted from the top of the screen frame 1, so that the screen plate 4 shielded by the dust-proof curtain 71 is completely exposed, and the cleaning operation is facilitated.

[0034] The above is only the preferred example of the utility model and is not used for limiting the utility model, although the utility model is described in detail with reference to the foregoing embodiments, the technical scheme recorded in the foregoing embodiments can still be modified or equivalent replaced for the person skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A construction engineering river sand screening device, comprising a screen frame (1), an inlet hopper (2), a vibration motor (3), a screen plate (4) and a fine material bin (5), the screen frame (1) is welded with the inlet hopper (2) at the rear, the inside of the inlet hopper (2) is communicated with the screen frame (1), the vibration motor (3) is symmetrically installed on the left and right of the screen frame (1), the screen plate (4) is arranged on the bottom surface of the screen frame (1), the fine material bin (5) is bolted on the bottom of the screen frame (1), and the fine material bin (5) is located directly below the screen plate (4); characterized in that It also includes a pre-crushing mechanism (6) and a dustproof device (7), the inside of the inlet hopper (2) is provided with a pre-crushing mechanism (6), the pre-crushing mechanism (6) includes a crushing motor (61), a crushing roller (62), a roller hook (63) and a splash-proof device (64), the crushing motor (61) is installed on the right side wall of the inlet hopper (2), the crushing roller (62) is horizontally arranged in the inlet hopper (2), both ends of the crushing roller (62) are rotatably connected with the inlet hopper (2), and the output shaft of the crushing motor (61) is connected with the crushing roller (62), the roller hook (63) is welded on the surface of the crushing roller (62), and the splash-proof device (64) is arranged on the top front edge of the inlet hopper (2), the top of the screen frame (1) is provided with a dustproof device (7).

2. A construction work river sand screening device as claimed in claim 1, wherein: The splash-proof device (64) includes an insertion slot (641), a connecting seat (642), an insertion slot (643) and a baffle (644), the top front edge of the inlet hopper (2) is provided with an insertion slot (641), the bottom of the connecting seat (642) is provided with an insertion slot (643), the connecting seat (642) is longitudinally inserted into the surface of the insertion slot (641) through the insertion slot (643), and the connecting seat (642) is locked and fixed with the insertion slot (641) by bolts, and the baffle (644) is welded at the rear of the connecting seat (642).

3. A construction work river sand screening device as claimed in claim 2, wherein: The length of the baffle (644) is the same as that of the crushing roller (62), and the baffle (644) completely covers the crushing roller (62).

4. The construction work river sand screening device according to claim 2, characterized in that: The baffle (644) is inclined, and the inclination angle of the baffle (644) is not less than 15°.

5. The construction work river sand screening device as claimed in claim 1, wherein: The dustproof device (7) includes a dustproof curtain (71), a main zipper (72) and a secondary zipper (73), the top of the screen frame (1) is covered with a dustproof curtain (71), the left side of the dustproof curtain (71) is riveted with the screen frame (1), the right side of the dustproof curtain (71) is provided with a main zipper (72), and the right side wall top of the screen frame (1) is provided with a secondary zipper (73), which can be connected with the main zipper (72).

6. A construction site river sand screening device as claimed in claim 5, wherein: The length of the dustproof curtain (71) is not less than 80% of the length of the screen frame (1).

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