Gravel screening and powder removing device

Abstract

The utility model discloses a gravel screening and powder removing device which comprises a powder removing box, vertically-arranged limiting grooves are symmetrically formed in the inner wall of the powder removing box, and transversely-arranged sliding grooves are formed in the lower ends of the limiting grooves. A screening and powder removing mechanism is arranged on the powder removing box, the screening and powder removing mechanism comprises a stepping motor installed on the side wall of the lower end of the powder removing box, the output end of the stepping motor is connected with a rotating shaft movably penetrating through the powder removing box, and two half gears are fixedly installed on the rotating shaft in sequence; the screening and powder removing mechanism further comprises a screening frame arranged in the powder removing box. The screening and powder removing mechanism and the filtering mechanism are adopted, graded screening of gravel is achieved through left-right movement of the screening frame, clean water in the screening frame is used for washing the gravel in the screening process, circulating flowing of the clean water is achieved through an infusion pump and a liquid conveying pump, dust is filtered through filtering cotton in a filtering box, and the dust is removed. The problems that existing gravel washing needs a large amount of clean water, and water resources are wasted are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sand and stone processing, in particular to a sand and stone screening and powder removal device. Background Art

[0002] At present, sand and gravel are mostly de-powdered by air separation and water washing. The air separation de-powdering is not thorough due to the damp adhesion of sand and gravel; the water washing de-powdering requires a large amount of clean water, which wastes water resources. In order to solve the above problems, the utility model proposes a sand and gravel screening and de-powdering device. Summary of the invention

[0003] The utility model aims to provide a sand and gravel screening and powder removal device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sand and stone screening and powder removal device, comprising a powder removal box, wherein the inner wall of the powder removal box is symmetrically provided with vertically arranged limit grooves, and the lower ends of the limit grooves are provided with horizontally arranged slide grooves;

[0005] The powder removal box is provided with a screening and powder removal mechanism, which includes a stepper motor installed on the side wall of the lower end of the powder removal box, the output end of the stepper motor is connected to a rotating shaft that movably passes through the powder removal box, and two half gears are fixedly installed on the rotating shaft in sequence;

[0006] The screening and powder removal mechanism also includes a screening frame arranged inside the powder removal box, and a first slider is symmetrically arranged on the side wall of the lower end of the screening frame, and the first slider is correspondingly clamped on the slide groove, and the lower end of the screening frame is symmetrically provided with a rack, and the rack is correspondingly meshed and connected with the half gear, and the interior of the screening frame is sequentially provided with an upper screening plate and a lower screening plate from top to bottom;

[0007] The screening and powder removal mechanism also includes centering plate latch doors located at both ends of the powder removal box, and the centering plate and the powder removal box are connected by a plurality of return springs;

[0008] The filtering mechanism on the side wall of the powder de-powdering box comprises a filtering box detachably mounted on a mounting plate on the side of the powder de-powdering box, and a liquid extraction pump and an infusion pump detachably mounted on the mounting plate, one end of each of the liquid extraction pump and the infusion pump are connected to the lower end of the interior of the powder de-powdering box through a pipeline, and the other end of the liquid extraction pump is connected to the upper end of the powder de-powdering box through a pipeline, and the other end of the infusion pump is connected to the lower end of the powder de-powdering box through a pipeline.

[0009] Preferably, a plurality of sieve holes are evenly arranged on the upper sieve plate and the lower sieve plate, and the aperture of the sieve holes on the upper sieve plate is larger than the aperture of the sieve holes on the lower sieve plate.

[0010] Preferably, a latch door is hinged on the side wall of the screening frame, and a positioning latch is embedded on the side wall of the screening frame, and the positioning latch is inserted into the latch door.

[0011] Preferably, lifting rings are symmetrically provided on the upper end of the screening frame.

[0012] Preferably, a second sliding block is provided on the side wall of the centering plate, and the second sliding block is correspondingly clamped in the sliding groove.

[0013] Preferably, an upper cover is provided at the upper end of the filter box, and a filter cotton frame is connected to the lower end of the upper cover via a connecting rod, and filter cotton is provided in the filter cotton frame.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the utility model adopts a screening and powder removal mechanism and a filtering mechanism, and realizes the graded screening of sand and gravel by moving the screening frame left and right, and the clean water in the screening frame is used to wash the sand and gravel during the screening process, and then the circulation of clean water is realized through the liquid suction pump and the infusion pump, and the dust is filtered through the filter cotton in the filter box, avoiding the problem that a large amount of clean water is required for the existing sand and gravel washing, thereby wasting water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0016] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the split structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the screening and powder removal mechanism of the utility model;

[0019] Figure 5 It is a cross-sectional structural schematic diagram of the utility model;

[0020] Figure 6 This is a schematic diagram of the centering plate structure of the utility model;

[0021] Figure 7 This is a schematic diagram of the disassembled structure of the filter box of the utility model.

[0022] In the figure: 1. powder removal box; 11. limit groove; 12. slide; 2. screening and powder removal mechanism; 21. stepping motor; 22. rotating shaft; 221. half gear; 23. screening frame; 231. first slider; 232. rack; 233. upper screening plate; 234. lower screening plate; 235. latch door; 236. positioning latch; 237. lifting ring; 24. centering plate; 241. reset spring; 242. second slider; 3. filtering mechanism; 31. filter box; 311. upper cover; 312. connecting rod; 313. filter cotton frame; 314. filter cotton; 32. liquid pump; 33. infusion pump. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-7 The utility model provides a technical solution: a sand and stone screening and powder removal device, comprising a powder removal box 1, the inner wall of the powder removal box 1 is symmetrically provided with vertically arranged limit grooves 11, and the lower ends of the limit grooves 11 are provided with horizontally arranged slide grooves 12;

[0025] The powder removal box 1 is provided with a screening powder removal mechanism 2, which includes a stepper motor 21 installed on the side wall of the lower end of the powder removal box 1, and the output end of the stepper motor 21 is connected to a rotating shaft 22 that moves through the powder removal box 1, and two half gears 221 are fixedly installed on the rotating shaft 22 in sequence;

[0026] The screening and powder removal mechanism 2 also includes a screening frame 23 arranged inside the powder removal box 1, and a first slider 231 is symmetrically arranged on the side wall of the lower end of the screening frame 23, and the first slider 231 is correspondingly clamped on the slide groove 12, and a rack 232 is symmetrically arranged at the lower end of the screening frame 23, and the rack 232 is correspondingly meshed and connected with the half gear 221, and an upper screening plate 233 and a lower screening plate 234 are arranged in sequence from top to bottom inside the screening frame 23;

[0027] The screening and powder removal mechanism 2 also includes a centering plate 24 latch door 235 located at both ends of the powder removal box 1, and the centering plate 24 and the powder removal box 1 are connected via a plurality of return springs 241;

[0028] The filtering mechanism 3 is provided on the side wall of the powder removal box 1, and the filtering mechanism 3 comprises a filtering box 31 which is detachably mounted on a mounting plate on the side of the powder removal box 1, and a liquid extraction pump 32 and a liquid infusion pump 33 are detachably mounted on the mounting plate, one end of the liquid extraction pump 32 and the liquid infusion pump 33 are connected to the lower end of the interior of the powder removal box 1 through a pipeline, and the other end of the liquid extraction pump 32 is connected to the upper end of the powder removal box 1 through a pipeline, and the other end of the liquid infusion pump 33 is connected to the lower end of the powder removal box 1 through a pipeline.

[0029] Furthermore, a plurality of screening holes are evenly arranged on the upper screening plate 233 and the lower screening plate 234, and the aperture of the screening holes on the upper screening plate 233 is larger than the aperture of the screening holes on the lower screening plate 234. The sand and gravel are shaken and screened in the screening frame 23, and graded and screened by the apertures of the upper screening plate 233 and the lower screening plate 234 of different sizes.

[0030] Furthermore, a latch door 235 is hinged on the side wall of the screening frame 23, and a positioning latch 236 is embedded on the side wall of the screening frame 23, and the positioning latch 236 is inserted into the latch door 235. The two latch doors 235 are respectively arranged between the corresponding upper screening plate 233 and the lower screening plate 234, and between the lower screening plate 234 and the bottom plate of the screening frame 23, so that the sand and gravel screened inside the screening frame 23 can be unloaded after the positioning latch 236 is unlocked.

[0031] Further, the upper end of the screening frame 23 is symmetrically provided with a lifting ring 237. It is convenient to use an external lifting device to lift the screening frame 23 through the lifting ring 237 to carry out the loading and unloading of the screening frame 23.

[0032] Furthermore, a second slider 242 is supported on the side wall of the centering plate 24, and the second slider 242 is correspondingly clamped in the chute 12. The centering plate 24 adopts an angular structure, with an inclined structure at the top and a vertical structure at the bottom. When the screening frame 23 is unloaded, the upper part is squeezed into an inclined structure, which facilitates the screening frame 23 to be unloaded by the equipment centering into the screening frame 23.

[0033] Furthermore, the upper end of the filter box 31 is provided with an upper cover 311, and the lower end of the upper cover 311 is connected to a filter cotton frame 313 through a connecting rod 312, and a filter cotton 314 is provided in the filter cotton frame 313. The water in the de-powdering box 1 is circulated by the liquid pump 32 and the infusion pump 33, and the water containing dust is filtered through the filter cotton 314, thereby effectively filtering the water in the de-powdering box 1, and improving the efficiency of sand and gravel de-powdering.

[0034] Specifically, firstly, sand and gravel are added into the screening frame 23, and then the screening frame 23 is placed into the powder removal box 1 through the lifting ring 237 on the screening frame 23 by an external lifting device, and the first slider 231 on the screening frame 23 enters the slide groove 12 along the limiting groove 11, and the two ends of the screening frame 23 squeeze the centering plate 24 during the descending process;

[0035] Then, the power supply is synchronously connected to start the stepper motor 21, the liquid extraction pump 32 and the infusion pump 33. The stepper motor 21 drives the rotating shaft 22 to rotate, thereby driving the screening frame 23 to move in the de-powdering box 1 through the meshing of the half gear 221 and the rack 232 on the rotating shaft 22, and the screening frame 23 squeezes the centering plate 24. When the half gear 221 is disengaged from the rack 232, the screening frame 23 is centered and reset under the elastic force of the reset spring 241 on the side wall of the centering plate 24, and then the screening frame 23 moves back and forth left and right, and the sand and gravel are graded and screened on the upper screening plate 233 and the lower screening plate 234, and the water in the de-powdering box 1 washes and de-powders the sand and gravel during the screening process;

[0036] The liquid pump 32 draws the dusty water into the upper end of the filter box 31, which is filtered through the filter cotton 314, and the infusion pump 33 then inputs clean water into the filter box 31 again, thereby achieving reciprocating filtration and avoiding the use of a large amount of clean water for washing.

[0037] Although the 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. A sand and gravel screening and de-dusting device, comprising a de-dusting box (1), characterized in that: The inner wall of the powder removal box (1) is symmetrically provided with vertically arranged limiting grooves (11), and the lower ends of the limiting grooves (11) are provided with horizontally arranged sliding grooves (12); The powder removal box (1) is provided with a screening powder removal mechanism (2), the screening powder removal mechanism (2) comprising a stepper motor (21) mounted on the side wall of the lower end of the powder removal box (1), the output end of the stepper motor (21) being connected to a rotating shaft (22) that movably passes through the powder removal box (1), and two half gears (221) being fixedly mounted in sequence on the rotating shaft (22); The screening and powder removal mechanism (2) further comprises a screening frame (23) arranged inside the powder removal box (1), and a first sliding block (231) is symmetrically arranged on the side wall of the lower end of the screening frame (23), the first sliding block (231) is correspondingly clamped on the slide groove (12), a rack (232) is symmetrically arranged at the lower end of the screening frame (23), and the rack (232) is correspondingly meshed and connected with the half gear (221), and an upper screening plate (233) and a lower screening plate (234) are arranged in sequence from top to bottom inside the screening frame (23); The screening and powder removal mechanism (2) further comprises a centering plate (24) latch door (235) located at both ends of the powder removal box (1), and the centering plate (24) and the powder removal box (1) are connected via a plurality of return springs (241); The filtering mechanism (3) is provided on the side wall of the powder removal box (1), and the filtering mechanism (3) comprises a filtering box (31) detachably mounted on a mounting plate on the side of the powder removal box (1), and a liquid extraction pump (32) and a liquid infusion pump (33) are detachably mounted on the mounting plate, one end of each of the liquid extraction pump (32) and the liquid infusion pump (33) is connected to the lower end of the inside of the powder removal box (1) via a pipeline, and the other end of the liquid extraction pump (32) is connected to the upper end of the powder removal box (1) via a pipeline, and the other end of the liquid infusion pump (33) is connected to the lower end of the powder removal box (1) via a pipeline.

2. A sand and gravel screening and de-dusting device according to claim 1, characterized in that: A plurality of screening holes are evenly arranged on the upper screening plate (233) and the lower screening plate (234), and the aperture of the screening holes on the upper screening plate (233) is larger than the aperture of the screening holes on the lower screening plate (234).

3. The sand and gravel screening and de-dusting device according to claim 1, characterized in that: A latch door (235) is hinged on the side wall of the screening frame (23), and a positioning latch (236) is embedded on the side wall of the screening frame (23), and the positioning latch (236) is inserted into the latch door (235).

4. The sand and gravel screening and de-dusting device according to claim 1, characterized in that: A lifting ring (237) is symmetrically provided at the upper end of the screening frame (23).

5. The sand and gravel screening and de-dusting device according to claim 1, characterized in that: A second sliding block (242) is supported on the side wall of the centering plate (24), and the second sliding block (242) is correspondingly clamped in the sliding groove (12).

6. The sand and gravel screening and de-dusting device according to claim 1, characterized in that: An upper cover (311) is provided at the upper end of the filter box (31), and a filter cotton frame (313) is connected to the lower end of the upper cover (311) via a connecting rod (312), and filter cotton (314) is provided in the filter cotton frame (313).

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