Double-air-screen double-specific-gravity compound cleaning machine

Abstract

The utility model provides a double-air-screen double-specific-gravity compound cleaning machine, which belongs to the technical field of winnowing equipment and comprises a frame body, a screen box, a first specific-gravity table, a second specific-gravity table and a dust removal mechanism. The screen box is arranged on the frame body; a feeding port of the screen box is connected with a first air screen, and a discharging port of the screen box is connected with a second air screen. Wherein a feeding hole of the first air screen is connected with a feeding device; the first specific gravity table is arranged on the frame body and located below the screen box. The feeding side of the first specific gravity table is located below a discharging port of the second air screen. The second specific gravity table is arranged on the frame body and is positioned below the first specific gravity table; the feeding side of the second specific gravity table is positioned on the discharging side of the first specific gravity table; the dust removal mechanism communicates with the top of the first air screen and the top of the second air screen and is used for sucking out light impurities in the materials; through the arrangement, light impurities and dust entering the specific gravity table can be reduced, and after two times of specific gravity screening, the screening quality of materials can be improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of winnowing equipment, and particularly relates to a double-wind-sieve double-specific-gravity repeated cleaning machine. BACKGROUND

[0002] The specific-gravity cleaning machine can screen materials according to the weight of the materials; when applied to grain screening, the grain is conveyed to the vertical wind sieve of the specific-gravity cleaning machine, and under the driving of the airflow, the light dust in the grain can be extracted.

[0003] A wind-sieve specific-gravity cleaning machine is disclosed in Chinese Patent Application No. 201510214818.8, which comprises a rack, a support rod fixedly connected with the rack, an elevator arranged on the rack, a vertical wind sieve connected with the elevator, a dust removal system connected with the vertical wind sieve, a specific-gravity screening device arranged below the vertical wind sieve, and a distribution box arranged on the rack; a front half sieve is further arranged between the vertical wind sieve and the specific-gravity screening device, and a front half sieve transmission device is arranged to connect the front half sieve and the specific-gravity screening device.

[0004] The specific-gravity cleaning machine described above screens the light impurities in the materials through the vertical wind sieve, and then the screened materials enter the front half sieve and the specific-gravity sieve in sequence. When the yield is large, although the vertical wind sieve can screen the light impurities in the materials, due to the large yield, the dust and light impurities will enter the specific-gravity table surface along with the materials, and a large amount of dust and light impurities will be generated on the specific-gravity table surface. UTILITY MODEL CONTENTS

[0005] The utility model embodiment provides a double-wind-sieve double-specific-gravity repeated cleaning machine, which aims to reduce the dust and light impurities entering the specific-gravity table surface.

[0006] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0007] A double-wind-sieve double-specific-gravity repeated cleaning machine is provided, which comprises:

[0008] a rack body;

[0009] a sieve box arranged on the rack body; a first wind sieve is connected with the feed inlet of the sieve box, and a second wind sieve is connected with the discharge outlet of the sieve box; wherein the feed inlet of the first wind sieve is connected with a feeding device;

[0010] a first specific-gravity table arranged on the rack body and located below the sieve box; the feed side of the first specific-gravity table is located below the discharge outlet of the second wind sieve;

[0011] a second specific-gravity table arranged on the rack body and located below the first specific-gravity table; wherein the feed side of the second specific-gravity table is located at the discharge side of the first specific-gravity table;

[0012] A dust removal mechanism is in communication with the top of the first wind screen and the top of the second wind screen, and is used to suck out light impurities in the material.

[0013] In a possible implementation, the first wind screen is provided with a feeding sleeve in communication with the discharge port of the feeding device; and the feeding sleeve is provided with an opening and closing structure for opening or closing the feeding sleeve.

[0014] In a possible implementation, the top of the feeding sleeve is provided with a strip-shaped hole, and the opening and closing structure comprises:

[0015] a baffle in sliding cooperation with the strip-shaped hole; the baffle is in contact with both sides of the inside of the feeding sleeve, and a feeding channel is formed between the bottom of the baffle and the bottom of the inside of the feeding sleeve;

[0016] a driving component arranged at the top of the feeding sleeve; a driving end of the driving component is connected with the baffle to drive the baffle to slide in the strip-shaped hole.

[0017] In a possible implementation, the driving component comprises:

[0018] a driving motor fixed at the top of the feeding sleeve;

[0019] a screw rod having one end connected with the output end of the driving motor;

[0020] a connecting plate having one end connected with the baffle and the other end being a curved end; the curved end of the connecting plate has a threaded hole in thread cooperation with the screw rod.

[0021] In a possible implementation, the outer side of the first wind screen is provided with a positioning plate having a through hole for the top end of the screw rod to pass through; and the positioning plate is used to circumferentially limit the screw rod.

[0022] In a possible implementation, the top of the feeding sleeve is connected with a mounting plate, and the driving motor is fixed on the mounting plate.

[0023] In a possible implementation, the feeding device comprises:

[0024] a bulk bin arranged on the frame body; the discharge port of the bulk bin is in communication with the feeding port of the first wind screen;

[0025] a feeding hopper located at the top of the bulk bin; the feeding hopper is in communication with the top of the bulk bin through a bulk material pipeline.

[0026] In a possible implementation, the bulk material pipeline has a plurality of branch channels arranged along the length direction of the bulk bin.

[0027] In a possible implementation, the dust removal mechanism comprises:

[0028] A dust remover has an air inlet;

[0029] A dust removal pipeline is in communication with the air inlet at one end and in communication with the first wind screen and the second wind screen at the other end.

[0030] In a possible implementation, the first specific gravity table and the second specific gravity table are both arranged obliquely, the lower side of the first specific gravity table and the lower side of the second specific gravity table are both feeding sides, and the higher side of the first specific gravity table and the higher side of the second specific gravity table are both discharging sides.

[0031] The frame body is connected with a discharging hopper at the discharging side of the second specific gravity table, and the discharging hopper is located below the discharging side of the second specific gravity table.

[0032] Compared with the prior art, the double-wind-screen double-specific-gravity repeated cleaning machine provided by the utility model has the advantages that the material enters the first wind screen from the feeding device, the first wind screen can preliminarily air-choose the light sundries in the material, the air-chosen material enters the sieve box, the sieve box can classify and screen the material, the screened material in the sieve box enters the second wind screen, the second wind screen can further remove the light sundries and dust in the material, thereby reducing the light sundries and dust entering the first specific gravity table, the material can be screened twice by the first specific gravity table and the second specific gravity table, the quality of the screened material can be improved, the light sundries and dust entering the specific gravity table can be reduced by the above-mentioned arrangement, and the screening quality of the material can be improved after the material is screened twice. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 A schematic view of a double-wind-screen double-specific-gravity repeated cleaning machine provided by the utility model embodiment;

[0034] Figure 2 A Figure 1 An enlarged schematic view of part A;

[0035] Figure 3 A front view of a double-wind-screen double-specific-gravity repeated cleaning machine provided by the utility model embodiment;

[0036] Figure 4 A side view of a double-wind-screen double-specific-gravity repeated cleaning machine provided by the utility model embodiment;

[0037] Figure 5 A schematic view of a first wind screen of a double-wind-screen double-specific-gravity repeated cleaning machine provided by the utility model embodiment;

[0038] Figure 6 The utility model provides a side view of the first wind screen of a double wind screen double specific gravity repeated cleaning machine.

[0039] Figure 7 Figure 6 The enlarged schematic view of the middle B part.

[0040] The reference signs are explained as follows: 1, frame body; 2, screen box; 3, first specific gravity table; 4, second specific gravity table; 5, dust removal mechanism; 51, dust collector; 52, dust removal pipeline; 6, first wind screen; 61, feeding sleeve; 611, strip-shaped hole; 62, opening and closing structure; 621, baffle; 622, driving motor; 623, screw rod; 624, connecting plate; 63, positioning plate; 64, mounting plate; 7, second wind screen; 8, feeding device; 81, bulk material box; 82, feeding hopper; 821, bulk material pipeline; 9, discharge hopper. DETAILED DESCRIPTION

[0041] In order to make the technical problems, technical solutions and beneficial effects of the utility model to be solved clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and do not limit the utility model.

[0042] Please refer to Figures 1 to 7 , now a double wind screen double specific gravity repeated cleaning machine provided by the utility model will be described. The double wind screen double specific gravity repeated cleaning machine comprises a frame body 1, a screen box 2, a first specific gravity table 3, a second specific gravity table 4 and a dust removal mechanism 5; the screen box 2 is arranged on the frame body 1; the feeding inlet of the screen box 2 is connected with a first wind screen 6, and the discharge outlet of the screen box 2 is connected with a second wind screen 7; wherein the feeding inlet of the first wind screen 6 is connected with a feeding device 8; the first specific gravity table 3 is arranged on the frame body 1 and located below the screen box 2; the feeding side of the first specific gravity table 3 is located below the discharge outlet of the second wind screen 7; the second specific gravity table 4 is arranged on the frame body 1 and located below the first specific gravity table 3; wherein the feeding side of the second specific gravity table 4 is located at the discharge side of the first specific gravity table 3; the dust removal mechanism 5 is in communication with the top of the first wind screen 6 and the top of the second wind screen 7, and the dust removal mechanism 5 is used for sucking out light impurities in the material.

[0043] The utility model provides a kind of double wind screen double specific gravity repeat type cleaning machine, compared with prior art, material enters into first wind screen 6 from feeding device 8, first wind screen 6 can preliminarily winnowing to light sundries in material;Material after winnowing enters into sieve box 2, sieve box 2 can classify screening to material, the material after screening of sieve box 2 enters into second wind screen 7, second wind screen 7 can further remove light sundries and dust in material, to further reduce light sundries and dust entering into first specific gravity platform 3;By setting first specific gravity platform 3 and second specific gravity platform 4, material can be screened twice, can improve the quality of material after screening;Through the above-mentioned setting of the application, light sundries and dust entering into specific gravity platform can be reduced, and the screening quality of material can be improved after two specific gravity screenings of the application.

[0044] It should be noted that other structures of the cleaning machine not mentioned in the application are prior art, which will not be described here.

[0045] In some embodiments, as shown in Figures 1 to 7 The feeding port of first wind screen 6 is provided with a feeding sleeve 61, which is in communication with the discharge port of feeding device 8; the feeding sleeve 61 is provided with an opening and closing structure 62 for opening or closing the feeding sleeve 61.

[0046] It should be noted that the structure of first wind screen 6 and the structure of second wind screen 7 are exactly the same, and the embodiment is described by taking first wind screen 6 as an example, and the structure of second wind screen 7 will not be described here; the feeding port of first wind screen 6 is located at the side, the top of first wind screen 6 is a light sundries outlet, and the bottom of first wind screen 6 is a material outlet; after the material enters first wind screen 6 from feeding device 8, the light sundries in the material move upward under the action of airflow, so that the light sundries are separated from the material; the material is finally discharged from the material outlet of first wind screen 6. By providing the opening and closing structure 62 on the feeding sleeve 61, the amount of material entering first wind screen 6 can be controlled; compared with the feeding mode of extending a dropping plate to the feeding port of first wind screen 6 in the prior art, the feeding mode of feeding sleeve 61 in the application has good sealing property, and can make the material more evenly slide into the sieve body.

[0047] In some embodiments, as shown in Figures 1 to 7As shown, the top of the feeding sleeve 61 is provided with a strip-shaped hole 611, the opening and closing structure 62 comprises a baffle 621 and a driving component; the baffle 621 is in sliding fit with the strip-shaped hole 611; the two sides of the baffle 621 are in contact with the two sides of the inside of the feeding sleeve 61, and the bottom of the baffle 621 and the bottom of the inside of the feeding sleeve 61 form a feeding channel; the driving component is arranged at the top of the feeding sleeve 61; the driving end of the driving component is connected with the baffle 621 to drive the baffle 621 to slide in the strip-shaped hole 611; the driving component comprises a driving motor 622, a screw rod 623 and a connecting plate 624; the driving motor 622 is fixed at the top of the feeding sleeve 61; one end of the screw rod 623 is connected with the output end of the driving motor 622; one end of the connecting plate 624 is connected on the baffle 621, and the other end is a curved end; the curved end of the connecting plate 624 has a threaded hole in screw fit with the screw rod 623.

[0048] It should be noted that by starting the driving motor 622, the screw rod 623 can be driven to rotate, and then the connecting plate 624 is moved upward or downward, so that the opening of the baffle 621 in the feeding sleeve 61 can be adjusted, and the feeding amount can be adjusted.

[0049] In some embodiments, as shown in Figures 1 to 7 As shown, the outer side of the first wind screen 6 is provided with a positioning plate 63, and the positioning plate 63 is provided with a through hole for the top end of the screw rod 623 to pass through; wherein the positioning plate 63 is used for circumferentially limiting the screw rod 623.

[0050] It should be noted that by arranging the positioning plate 63 on the outer side of the first wind screen 6, the screw rod 623 can be circumferentially limited, and the stability of the screw rod 623 can be improved during rotation, thereby ensuring the stability of the connecting plate 624 and the baffle 621 during upward and downward sliding.

[0051] In some embodiments, as shown in Figures 1 to 7 As shown, the top of the feeding sleeve 61 is connected with a mounting plate 64, and the driving motor 622 is fixed on the mounting plate 64; the mounting plate 64 is fixed on the top of the feeding sleeve 61, and by arranging the mounting plate 64 on the feeding sleeve 61, the driving motor 622 can be vertically mounted on the feeding sleeve 61, so that the output shaft of the driving motor 622 can be vertically arranged.

[0052] In some embodiments, as shown in Figures 1 to 7 As shown, the feeding device 8 comprises a bulk bin 81 and a feeding hopper 82; the bulk bin 81 is arranged on the frame body 1; the discharge port of the bulk bin 81 is in communication with the feeding port of the first wind screen 6; the feeding hopper 82 is located at the top of the bulk bin 81; the feeding hopper 82 is in communication with the top of the bulk bin 81 through a bulk material pipeline 821; the bulk material pipeline 821 has a plurality of branch channels, and the plurality of branch channels are arranged along the length direction of the bulk bin 81.

[0053] It should be noted that after the material enters the feeding hopper 82, the material is dispersed through the bulk material pipeline 821, and finally the material falls into the bulk material box 81 through each branch channel to achieve the purpose of dispersing the material into the bulk material; the material in the bulk material box 81 flows into the feeding sleeve 61 through the discharge port.

[0054] In some embodiments, as shown in Figures 1 to 7 The dust removal mechanism 5 includes a dust remover 51 and a dust removal pipeline 52; the dust remover 51 has an air inlet; one end of the dust removal pipeline 52 is in communication with the air inlet, and the other end is in communication with the first wind screen 6 and the second wind screen 7.

[0055] For example, the dust remover 51 in the embodiment of the application is two, the dust removal pipeline 52 is also two, and the dust removal pipeline 52 corresponds to the dust remover 51 one by one; one of the dust removers 51 is in communication with the first wind screen 6 through the dust removal pipeline 52, and the other dust remover 51 is in communication with the second wind screen 7 through the dust removal pipeline 52.

[0056] In some embodiments, as shown in Figures 1 to 7 The first specific gravity table 3 and the second specific gravity table 4 are both inclined, the lower side of the first specific gravity table 3 and the lower side of the second specific gravity table 4 are both feeding sides, and the higher side of the first specific gravity table 3 and the higher side of the second specific gravity table 4 are both discharge sides; wherein the frame body 1 is connected with a discharge hopper 9 on the discharge side of the second specific gravity table 4, and the discharge hopper 9 is located below the discharge side of the second specific gravity table 4.

[0057] It should be noted that the material after being screened by the second wind screen 7 enters the first specific gravity table 3, and after the first specific gravity table 3 performs a specific gravity screening on the material, the material falls into the second specific gravity table 4; the second specific gravity table 4 can perform a second specific gravity screening on the material. The material after two specific gravity screenings falls into the discharge hopper 9, and the discharging process is completed.

[0058] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A double-aeration double-sieve double-specific-gravity re-cleaner characterized by, The utility model relates to a kind of screening machines, including: Frame body; Screen box is arranged on the frame body;The feed inlet of the screen box is connected with first air screen, and the discharge outlet of the screen box is connected with second air screen;Wherein, the feed inlet of the first air screen is connected with feeding device; First specific gravity table is arranged on the frame body and is located below the screen box;The feed side of the first specific gravity table is located below the discharge outlet of the second air screen; Second specific gravity table is arranged on the frame body and is located below the first specific gravity table;Wherein, the feed side of the second specific gravity table is located at the discharge side of the first specific gravity table; Dust removal mechanism is communicated with the top of the first air screen and the top of the second air screen, and the dust removal mechanism is used to suck out light impurities in material.

2. A double-aeration double-sieve re-cleaner as claimed in claim 1, characterized in that, The feed inlet of the first air screen is provided with a feed sleeve, and the feed sleeve is communicated with the discharge outlet of the feeding device;The feed sleeve is provided with opening and closing structure for opening or closing the feed sleeve.

3. A double-aeration double-sieve re-cleaner as claimed in claim 2, characterized in that, The top of the feed sleeve is provided with a strip-shaped hole, and the opening and closing structure comprises: Baffle is slidably connected with the strip-shaped hole;The two sides of the baffle are in contact with the two sides of the inside of the feed sleeve, and the bottom of the baffle and the bottom of the inside of the feed sleeve form a feed channel; Driving component is arranged on the top of the feed sleeve;The driving end of the driving component is connected with the baffle to drive the baffle to slide in the strip-shaped hole.

4. A double-aeration double-sieve re-cleaner as claimed in claim 3, characterized in that, The driving component comprises: Driving motor is fixed on the top of the feed sleeve; Screw rod, one end of which is connected with the output end of the driving motor; Connecting plate, one end of which is connected to the baffle, and the other end is a curved end;The curved end of the connecting plate has a threaded hole matched with the screw rod.

5. A double-aeration double-sieve re-cleaner as claimed in claim 4, characterized in that, The outer side of the first air screen has a positioning plate, and the positioning plate has a through hole for the top end of the screw rod to pass through;Wherein, the positioning plate is used to circumferentially limit the screw rod.

6. A double-aeration double-sieve re-cleaner as claimed in claim 4, characterized in that, The top of the feed sleeve is connected with a mounting plate, and the driving motor is fixed on the mounting plate.

7. A double-aeration double-sieve re-cleaner as claimed in claim 1, characterized in that, The feeding device comprises: Bulk bin is arranged on the frame body;The discharge outlet of the bulk bin is communicated with the feed inlet of the first air screen; Feed hopper is located on the top of the bulk bin;The feed hopper is communicated with the top of the bulk bin through bulk pipe.

8. A double-aeration double-sieve re-cleaner as claimed in claim 7, characterized in that, The bulk pipe has a plurality of branch channels, and the plurality of branch channels are arranged along the length direction of the bulk bin.

9. A double-aeration double specific gravity re-cleaner according to claim 1, characterized in that, The dust removal mechanism comprises: Dust collector has air inlet; Dust removal pipeline, one end of which is communicated with air inlet, and the other end is communicated with first air screen and second air screen.

10. A double-aeration double-sieve re-cleaner as claimed in claim 1, characterized in that, The first specific gravity table and the second specific gravity table are both arranged obliquely, and the lower side of the first specific gravity table and the lower side of the second specific gravity table are both feed sides, and the higher side of the first specific gravity table and the higher side of the second specific gravity table are both discharge sides; Wherein, the frame body is connected with discharge hopper at the discharge side of the second specific gravity table, and the discharge hopper is located below the discharge side of the second specific gravity table.

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