Environment-friendly gravel material screening equipment

Abstract

The utility model belongs to the technical field of screening equipment, and particularly relates to environment-friendly sand-gravel material screening equipment which comprises a bottom plate, a protective shell is fixedly arranged on the upper side wall of the bottom plate, a rotating rod is longitudinally and rotatably arranged in the protective shell, screening grooves which are evenly distributed are fixedly formed in the rod wall of the rotating rod, and the screening grooves are arranged in the protective shell. Three screening grooves are formed in the protective shell, symmetrical mounting openings are formed in the bottoms of the screening grooves, screening plates are arranged in the symmetrical mounting openings, and a limiting mechanism is arranged at the position, located between the two mounting openings, of the bottoms of the screening grooves. When a batch of sand and gravel materials need to be screened, the sand and gravel materials can be directly screened into several specifications at a time, convenience and rapidness are achieved, repeated construction operation is not needed, and the screening speed is high.

Description

Technical Field

[0001] The utility model relates to the technical field of screening equipment, in particular to an environmentally friendly sand and gravel screening equipment. Background Art

[0002] Sand and gravel aggregate screening equipment is a kind of equipment used to classify sand and gravel aggregate according to different specifications, screen the sand and gravel aggregate, and then transport the sand and gravel aggregate of different specifications to different silos for storage. It is mainly used in sand and gravel aggregate processing and concrete mixing stations in the construction fields of buildings, roads, bridges, etc. It is one of the indispensable construction material equipment.

[0003] However, the existing screening equipment still has the following technical problems when in use:

[0004] Existing screening equipment can usually only perform one screening when screening sand and gravel. If the screened sand needs to be further screened to obtain finer sand, it is necessary to work again and use other types of screens to repeat the work, which is time-consuming and complicated.

[0005] Therefore, an environmentally friendly sand and gravel screening device is now proposed to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to provide an environmentally friendly sand and gravel screening device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an environmentally friendly sand and gravel screening equipment, comprising a bottom plate, a protective shell is fixedly provided on the upper side wall of the bottom plate, a rotating rod is longitudinally rotatably provided inside the protective shell, the rod wall of the rotating rod is fixedly provided with evenly arranged screening slots, symmetrical installation openings are provided at the bottom of the screening slots, and the symmetrical installation openings are each provided with a screen plate, a limiting mechanism is provided between the two installation openings at the bottom of the screening slot, a sleeve is rotatably provided on the rod wall of the rotating rod located at the upper end of each screening slot, and the sleeve A connecting rod is fixedly provided on the side wall, a scraper is fixedly provided on the other end of the connecting rod, a transmission mechanism is provided on the right end inside the protective shell, a discharge port is provided on the left side wall of the screening trough, a symmetrical slide groove is provided on the inner wall of the discharge port, sliders are symmetrically provided for sliding inside the slide grooves, a baffle is fixedly provided between the two sliders, a guide groove is fixedly provided on the left side wall of the screening trough, the left end of the guide groove extends to the outside of the protective shell, a protective cover plate is provided on the front end of the protective shell, and a feed funnel is fixedly provided on the upper side wall of the protective shell.

[0008] Preferably, the limiting mechanism includes two limiting blocks, a groove is provided inside the screening slot between the two mounting openings, the two limiting blocks are slidably arranged inside the groove, a plug plate is fixedly arranged on the side facing away from the two limiting blocks, the ends facing away from the two plug plates penetrate the side wall of the groove and are plugged into the screen plate, the side walls of the two limiting blocks are threaded with fastening bolts, the lower ends of the two fastening bolts are threadedly connected to the inner wall of the groove, and the upper ends of the two grooves are clamped with a clamping plate.

[0009] Preferably, the transmission mechanism includes a motor, which is fixedly connected to the lower end of the inner wall of the protective shell through a mounting frame, and a transmission rod is fixedly provided at the output end of the motor, and the rod wall of the transmission rod is sleeved with evenly arranged first pulleys, and the outside of the evenly arranged sleeves are sleeved with second pulleys, and the outsides of the first pulleys and the second pulleys are jointly provided with belts.

[0010] Preferably, the four corners of the side wall of the protective cover plate are threaded with fixing bolts, and the protective cover plate is fixedly connected to the front side wall of the protective shell through the fixing bolts.

[0011] Preferably, an air inlet hole is opened on the side wall of the protective cover plate, a dustproof net is fixedly installed inside the air inlet hole, an air outlet duct is fixedly installed on the upper side wall of the protective shell, an exhaust fan is fixedly installed inside the air outlet duct, and a filter bag is fixedly installed on the right end of the air outlet duct.

[0012] Preferably, the sieve holes of the evenly arranged sieve plates decrease in order from top to bottom.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The present application simultaneously arranges three screening slots inside the protective shell, and the sieve holes of the sieve plates inside each screening slot are different. When a batch of sand and gravel needs to be screened, the sand and gravel can be directly screened into several specifications at one time, which is convenient and fast, does not require repeated construction operations, and has a fast screening speed. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 for Figure 1 A schematic cross-sectional structure diagram of ;

[0017] Figure 3 Schematic diagram of the top view of the screening tank;

[0018] Figure 4 Schematic diagram of the structure of the connecting rod and the scraper.

[0019] In the figure: 1 bottom plate, 2 protective shell, 3 rotating rod, 4 screening slot, 5 screen plate, 6 sleeve, 7 connecting rod, 8 scraper, 9 slider, 10 baffle, 11 guide slot, 12 protective cover, 13 feed funnel, 14 limit block, 15 plug plate, 16 locking plate, 17 motor, 18 transmission rod, 19 dust net, 20 air outlet pipe, 21 exhaust fan, 22 filter bag. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0022] Example:

[0023] See also Figure 1-4 , the utility model provides a technical solution:

[0024] An environmentally friendly sand and gravel screening device comprises a bottom plate 1, a protective shell 2 is fixedly provided on the upper side wall of the bottom plate 1, a rotating rod 3 is longitudinally rotated inside the protective shell 2, the rod wall of the rotating rod 3 is fixedly provided with uniformly arranged screening slots 4, symmetrical installation openings are provided at the bottom of the screening slots 4, and screen plates 5 are provided inside the symmetrical installation openings. A limiting mechanism is provided between two installation openings at the bottom of the screening slots 4, a sleeve 6 is rotatably provided on the rod wall of the rotating rod 3 located at the upper end of each screening slot 4, a connecting rod 7 is fixedly provided on the side wall of the sleeve 6, and a scraper 8 is fixedly provided on the other end of the connecting rod 7, a transmission mechanism is provided at the right end inside the protective shell 2, and a discharge port is provided on the left side wall of the screening slot 4 A symmetrical chute is provided on the inner wall of the discharge port, and a slider 9 is slidingly arranged inside the symmetrical chute. A baffle 10 is fixedly arranged between the two sliders 9. A guide groove 11 is fixedly arranged on the left wall of the screening groove 4. The left end of the guide groove 11 extends to the outside of the protective shell 2. A protective cover plate 12 is provided at the front end of the protective shell 2. A feed funnel 13 is fixedly arranged on the upper side wall of the protective shell 2. Three screening grooves 4 are arranged inside the protective shell 2 at the same time. The sieve holes of the sieve plate 5 inside each screening groove 4 are different. When a batch of sand and gravel materials need to be screened, the sand and gravel materials can be directly screened into several specifications at one time, which is convenient and fast, does not require repeated construction operations, and has a fast screening speed.

[0025] The limiting mechanism includes two limiting blocks 14. A groove is provided inside the screening slot 4 between the two mounting openings. The two limiting blocks 14 are slidably arranged inside the groove. A plug plate 15 is fixedly arranged on the side away from the two limiting blocks 14. The ends away from the two plug plates 15 penetrate the side wall of the groove and are plugged into the screen plate 5. The side walls of the two limiting blocks 14 are threaded with fastening bolts. The lower ends of the two fastening bolts are threadedly connected to the inner wall of the groove. A clamping plate 16 is clamped at the upper ends of the two grooves. The screen plate 5 here can be adjusted arbitrarily according to the needs of use, so as to replace the screen plate 5 with the corresponding type of sieve hole to screen the sand and gravel.

[0026] The transmission mechanism includes a motor 17, which is fixedly connected to the lower end of the inner wall of the protective shell 2 through a mounting frame. A transmission rod 18 is fixedly provided at the output end of the motor 17. The rod wall of the transmission rod 18 is sleeved with a uniformly arranged first pulley, and the outside of the uniformly arranged sleeves 6 is sleeved with a second pulley, and a belt is commonly provided on the outside of the first pulley and the second pulley.

[0027] The four corners of the side wall of the protective cover plate 12 are all threaded with fixing bolts. The protective cover plate 12 is fixedly connected to the front side wall of the protective shell 2 by the fixing bolts, which facilitates the disassembly of the front end of the protective cover plate 12, thereby pulling out the internal baffle 10 and facilitating the discharge of the screened sand and gravel.

[0028] An air inlet is provided on the side wall of the protective cover 12, a dustproof net 19 is fixedly installed inside the air inlet, an air outlet duct 20 is fixedly installed on the upper side wall of the protective shell 2, an exhaust fan 21 is fixedly installed inside the air outlet duct 20, and a filter bag 22 is fixedly installed on the right end of the air outlet duct 20. During the screening process, some dust will be raised. At this time, the internal dust can be sucked into the interior of the filter bag 22 by the rotation of the exhaust fan 21, and filtered and collected by the filter bag 22.

[0029] The sieve holes of the evenly arranged sieve plates 5 decrease from top to bottom. When a batch of sand and gravel is screened, the sieve holes are set to decrease from top to bottom, so that larger sand and gravel will remain in the screening slot 4 at the top, and smaller sand and gravel will remain in the screening slot 4 at the bottom.

[0030] Working principle:

[0031] The sieve 8 of the second screening slot 4 is moved by the motor 17 and the sand and gravel are removed from the sieve 4. The sieve 8 of the second screening slot 4 is moved by the motor 17 and the sand and gravel are removed from the sieve 4.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly sand and gravel screening device, comprising a bottom plate (1), characterized in that: A protective shell (2) is fixedly provided on the upper side wall of the bottom plate (1), a rotating rod (3) is longitudinally rotatably provided inside the protective shell (2), the rod wall of the rotating rod (3) is fixedly provided with evenly arranged screening slots (4), the bottom of the screening slots (4) is provided with symmetrical mounting openings, the inside of the symmetrical mounting openings are each provided with a screening plate (5), a limiting mechanism is provided between two mounting openings at the bottom of the screening slots (4), a sleeve (6) is rotatably provided on the rod wall of the rotating rod (3) at the upper end of each screening slot (4), a connecting rod (7) is fixedly provided on the side wall of the sleeve (6), and the other end of the connecting rod (7) is provided with a plurality of connecting rods (5). A scraper (8) is fixedly arranged, a transmission mechanism is arranged at the right end inside the protective shell (2), a discharge port is opened on the left side wall of the screening trough (4), a symmetrical slide groove is opened on the inner wall of the discharge port, a slider (9) is slidably arranged inside the symmetrical slide groove, a baffle (10) is fixedly arranged between the two sliders (9), a guide groove (11) is fixedly arranged on the left side wall of the screening trough (4), the left end of the guide groove (11) extends to the outside of the protective shell (2), a protective cover plate (12) is arranged at the front end of the protective shell (2), and a feed funnel (13) is fixedly arranged on the upper side wall of the protective shell (2).

2. The environmentally friendly sand and gravel screening equipment according to claim 1 is characterized in that: The limiting mechanism comprises two limiting blocks (14), a groove is provided inside the screening slot (4) between the two mounting openings, the two limiting blocks (14) are slidably arranged inside the groove, a plug plate (15) is fixedly arranged on the opposite side of the two limiting blocks (14), the opposite ends of the two plug plates (15) penetrate the side wall of the groove and are plugged into the screening plate (5), the side walls of the two limiting blocks (14) are threadedly provided with fastening bolts, the lower ends of the two fastening bolts are threadedly connected to the inner wall of the groove, and the upper ends of the two grooves are clamped with a clamping plate (16).

3. The environmentally friendly sand and gravel screening equipment according to claim 1 is characterized in that: The transmission mechanism comprises a motor (17), the motor (17) being fixedly connected to the lower end of the inner wall of the protective shell (2) via a mounting frame, a transmission rod (18) being fixedly arranged at the output end of the motor (17), the rod wall of the transmission rod (18) being sleeved with uniformly arranged first belt pulleys, the outer sides of the uniformly arranged sleeves (6) being sleeved with second belt pulleys, and the outer sides of the first belt pulleys and the second belt pulleys being jointly provided with belts.

4. The environmentally friendly sand and gravel screening equipment according to claim 1 is characterized in that: The four corners of the side wall of the protective cover plate (12) are all threadedly provided with fixing bolts, and the protective cover plate (12) is fixedly connected to the front side wall of the protective shell (2) via the fixing bolts.

5. The environmentally friendly sand and gravel screening equipment according to claim 1 is characterized in that: An air inlet hole is provided on the side wall of the protective cover plate (12), a dust screen (19) is fixedly arranged inside the air inlet hole, an air outlet pipe (20) is fixedly arranged on the upper side wall of the protective shell (2), an exhaust fan (21) is fixedly arranged inside the air outlet pipe (20), and a filter bag (22) is fixedly arranged at the right end of the air outlet pipe (20).

6. The environmentally friendly sand and gravel screening equipment according to claim 1 is characterized by: The sieve holes of the evenly arranged sieve plates (5) decrease in number from top to bottom.

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