Winnowing machine suitable for gravels with different particle sizes

Abstract

The utility model discloses a sandstone winnowing machine suitable for different particle sizes, which relates to the technical field of ore screening and processing, and comprises a collecting box, a winnowing part for winnowing ores and a screening part for screening the ores, by arranging the winnowing part, gravels are rubbed with one another to remove soil and other impurities attached to the surfaces of the gravels while being slowly transmitted, and effective sorting is conducted in cooperation with flowing air; and by arranging the screening part, the number of filter screens can be flexibly set and the inclination angles of the filter screens can be adjusted according to actual use requirements so as to adapt to different screening requirements, and the application range and practicability of the screening device are increased.

Description

Technical Field

[0001] The utility model relates to the technical field of ore screening, in particular to a sand and gravel air separator suitable for sand and gravel with different particle sizes. Background Art

[0002] Sand and gravel contain various impurities, such as dirt, clay, organic matter, metal particles, and minerals. These impurities can affect the physical and chemical properties of the sand and gravel, thereby reducing its quality and performance in construction and engineering. The purpose of air separation of sand and gravel is to improve its purity and reduce its impurities. Air separation removes light impurities, dust, and other substances, ensuring that its performance in construction and engineering meets higher standards.

[0003] The utility model patent with announcement number CN205904114U discloses a screening and air separation machine for sand and gravel, which is mainly composed of a screening machine, an air separation silo, a blower, an air inlet channel and an exhaust channel; the screening machine is installed above the air separation silo, and the air separation silo is connected to the air inlet channel and the exhaust channel, and multiple collecting hoppers are arranged at the bottom thereof; at the same time, the lower part of the air separation silo is also equipped with a rotating flap; inside the screening machine, the screen frame remains fixed and does not participate in vibration, and is directly rigidly connected to the air separation silo; the screening machine adopts a hoisting structure, and the installation angle can be adjusted between 35 and 40 degrees, and the side wall of the air separation silo is provided with a side air inlet channel.

[0004] However, the existing technology cannot flexibly adjust the number and angle of the filter screens according to actual screening needs during the screening process, and its scope of application is limited. At the same time, the existing technology only relies on vibration and cannot effectively remove the soil attached to the surface of the sand and gravel, and its screening effect is limited. Utility Model Content

[0005] In response to the above technical problems, the utility model provides the following technical solutions: a sand and gravel air separator suitable for different particle sizes, comprising a collecting box, an air separation section for air separation of ore, and a screening section for screening the ore; the air separation section comprises an air separation feeding shell, a feed port is provided at the top of the air separation feeding shell, a discharge port is provided at the bottom, an air separation transmission shaft is rotatably arranged in the air separation feeding shell, and an air separation transmission spiral blade for conveying ore is fixedly arranged on the air separation transmission shaft; the screening section comprises a detachable screening filter arranged on a bracket.

[0006] Furthermore, the bracket includes a screening bottom plate and a screening support frame 1 and a screening support frame 2 fixedly arranged on the screening bottom plate. The screening support frame 1 and the screening support frame 2 are both provided with mounting holes for installing the screening filter.

[0007] Furthermore, the screening filter is matched with the mounting hole through a screening mounting pin, and the screening filter includes a screening filter 1 and a screening filter 2, and both the screening filter 1 and the screening filter 2 are provided with filtering holes.

[0008] Furthermore, a screening collection pool is detachably provided on the screening bottom plate through a slide slot, and the screening collection pool is used to collect the ore filtered by the screening filter.

[0009] Furthermore, one end of the air separation transmission shaft is rotatably provided with air separation reduction gear 1, air separation reduction gear 2, and air separation reduction gear 3. The air separation reduction gear 1, air separation reduction gear 2, and air separation reduction gear 3 are distributed in a circular array along the rotation center of the air separation transmission shaft. The air separation reduction gear 1, air separation reduction gear 2, and air separation reduction gear 3 are engaged with the air separation transmission gear and at the same time are engaged with the gear ring arranged on the air separation fan blade housing.

[0010] Furthermore, the air separation transmission gear is fixedly arranged on the output shaft of the air separation motor, and the output shaft of the air separation motor is also fixedly provided with an air separation fan blade, and an air inlet hole is provided on the side of the air separation fan blade housing close to the air separation motor.

[0011] Furthermore, the wind separation transmission spiral is provided with a flow hole for gas circulation, and the discharge port is arranged along the axial direction of the wind separation feeding shell.

[0012] Furthermore, a wind separation collection shell is fixedly provided on the wind separation feeding shell, the cavity in the wind separation collection shell is connected to the cavity in the wind separation feeding shell, the wind separation collection shell is connected to the collection box through a conduit, and the collection box is fixedly provided on the screening support frame 2.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention sets up an air separation part, which transmits sand and gravel at a slow speed while making the sand and gravel rub against each other to remove impurities such as dirt attached to the surface of the sand and gravel, and cooperates with the flowing air to effectively separate them; 2. By setting up a screening part, the number of filters can be flexibly set according to actual usage needs, and the inclination angle of the filter can be adjusted to adapt to different screening needs, thereby increasing its scope of application and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional view of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 3 It is a side view schematic diagram of the overall structure of the utility model.

[0017] Figure 4 This is a schematic diagram of the overall structure of the utility model from a front view angle.

[0018] Figure 5 This is a cross-sectional view of the local structure of the air separation part of the utility model Figure 1 .

[0019] Figure 6 This is a cross-sectional view of the local structure of the air separation part of the utility model Figure 2 .

[0020] Figure 7 This is a schematic diagram of the local structure of the air separation part of the utility model Figure 1 .

[0021] Figure 8 This is a schematic diagram of the local structure of the air separation part of the utility model Figure 2 .

[0022] Figure 9 It is a schematic diagram of the local structure of the screening part of the utility model.

[0023] Figure markings: 1-air separation part; 2-screening part; 3-collecting box; 101-air separation reduction gear 1; 102-air separation reduction gear 2; 103-air separation reduction gear 3; 104-air separation transmission gear; 105-air separation fan blade; 106-air separation motor; 107-air separation transmission shaft; 108-air separation transmission spiral; 109-air separation fan blade housing; 110-air separation feeding housing; 111-air separation collection housing; 201-screening bottom plate; 202-screening collection tank; 203-screening filter screen 1; 204-screening filter screen 2; 205-screening support frame 1; 206-screening support frame 2; 207-screening installation pin. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figures 1 to 4 As shown, a sand and gravel air separator suitable for different particle sizes includes a collecting box 3 for collecting light ore particles, an air separation part 1 for air separation of the ore, and a screening part 2 for screening the ore.

[0026] like Figures 1 to 8As shown, the air separation part 1 includes an air separation reduction gear 101, an air separation reduction gear 2 102, an air separation reduction gear 3 103, an air separation transmission gear 104, an air separation fan blade 105, an air separation motor 106, an air separation transmission shaft 107, an air separation transmission spiral piece 108, an air separation fan blade housing 109, an air separation feeding housing 110, and an air separation collection housing 111; a feed port is provided at the top of the air separation feeding housing 110, and a discharge port is provided at the bottom; an air separation transmission shaft 107 is rotatably arranged in the air separation feeding housing 110, and an air separation transmission spiral piece 108 for conveying ore is fixedly arranged on the air separation transmission shaft 107; an air separation reduction gear 101, an air separation reduction gear 2 102, and an air separation reduction gear 3 103 are rotatably arranged at one end of the air separation transmission shaft 107, and the air separation reduction gear 101, the air separation reduction gear 2 102, and the air separation reduction gear 3 103 are arranged along the rotation center of the air separation transmission shaft 107. Distributed in a circular array, the air separation reduction gear 101, the air separation reduction gear 2 102, and the air separation reduction gear 3 103 are engaged with the air separation transmission gear 104 and at the same time are engaged with the gear ring arranged on the air separation fan blade housing 109; the air separation transmission gear 104 is fixedly arranged on the output shaft of the air separation motor 106, and the output shaft of the air separation motor 106 is also fixedly provided with an air separation fan blade 105, and the air separation fan blade housing 109 is provided with an air inlet on the side close to the air separation motor 106; the air separation transmission spiral blade 108 is provided with a circulation hole for gas circulation, and the discharge port is arranged axially along the air separation feeding housing 110; the air separation collecting housing 111 is fixedly provided on the air separation feeding housing 110, and the cavity in the air separation collecting housing 111 is connected to the cavity in the air separation feeding housing 110, and the air separation collecting housing 111 is connected to the collecting box 3 through a conduit, and the collecting box 3 is fixedly provided on the screening support frame 2 206.

[0027] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 9As shown, the screening part 2 includes a bracket, a screening filter, a screening installation latch 207, and a screening collection tank 202; the screening filter is detachably arranged on the bracket; the bracket includes a screening bottom plate 201 and a screening support frame 1 205 and a screening support frame 206 fixedly arranged on the screening bottom plate 201, and the screening support frame 1 205 and the screening support frame 206 are both provided with mounting holes for mounting the screening filter; the screening filter is mounted on the screening support frame 1 205 and the screening branch through the screening installation latch 207 and the mounting hole. On the support frame 206, the screening filter includes screening filter 1 203 and screening filter 2 204. Screening filter 1 203 and screening filter 2 204 are both provided with filter holes. The diameter of the filter on screening filter 1 203 is different from the diameter of the filter hole on screening filter 2 204. During installation, the filter with larger holes is installed on the top and the filter with smaller holes is installed on the bottom. A screening collection pool 202 is detachably provided on the screening bottom plate 201 through a slide slot. The screening collection pool 202 is used to collect ore filtered by the screening filter.

[0028] like Figures 1 to 9 As shown, the utility model discloses a sand and gravel air separator suitable for different particle sizes, and its working principle is: the ore to be processed is slowly put into the air separation feeding shell 110 from the feed port on the air separation feeding shell 110, and the air separation motor 106 is turned on. The air separation motor 106 rotates to drive the air separation fan blades 105 and the air separation transmission gear 104 to rotate. When the air separation fan blades 105 rotate, air is brought into the air separation feeding shell 110 from the air inlet hole on the air separation fan blade shell 109 close to the air separation motor 106, so that the air is blown from the side of the air separation feeding shell 110 close to the air separation motor 106 to the side of the air separation collection shell 111. At this time, the ore particles or dust with smaller particle size in the ore are blown into the air separation collection shell 111 by the air, and enter the collection box 3 through the conduit on the air separation collection shell 111 for collection.

[0029] The air separation transmission gear 104 rotates through the air separation reduction gear 1 101, the air separation reduction gear 2 102, and the air separation reduction gear 3 103 to drive the air separation transmission shaft 107 to rotate. During this process, the speed of the air separation transmission shaft 107 decreases, and the rotation of the air separation transmission shaft 107 drives the air separation transmission spiral 108 to gradually transport the sand and gravel near the side of the air separation motor 106 to the discharge port set at the bottom of the air separation feeding shell 110. During this process, the sand and gravel rub against each other, and impurities such as soil attached to the surface of the sand and gravel are separated with the flowing air.

[0030] The ore after air separation falls from the discharge port at the bottom of the air separation feeding housing 110 onto the screening filter 1 203, and then the ore at this position is screened under the action of gravity, and the larger particles are discharged from the lower side of the screening filter 1 203 for collection, and the smaller particles fall onto the screening filter 2 204, and then the ore at this position is screened again under the action of gravity, and the smaller particles fall into the screening collection pool 202 for collection, and the larger particles are discharged from the lower side of the screening filter 204 for collection, completing multi-stage screening; in this process, According to screening requirements, remove the nut on the screening installation pin 207, remove the screening installation pin 207, increase the number of screening filter 204 and screening filter 1 203, and adjust the positions of screening filter 204 and screening filter 1 203 at the same time, and install screening filter 2 204 and screening filter 1 203 with different filter apertures from top to bottom according to the filter aperture size. At the same time, the inclination of screening filter 1 203 and screening filter 2 204 can also be adjusted by the nut at the other end of the screening installation pin 207 to meet different screening requirements.

Claims

1. A sand and gravel air separator suitable for different particle sizes, comprising a collecting box (3), characterized in that: The invention also includes an air separation part (1) for air separation of ore and a screening part (2) for screening the ore; The air separation section (1) includes an air separation feeding housing (110), a feeding port is provided at the top of the air separation feeding housing (110), and a discharge port is provided at the bottom. An air separation transmission shaft (107) is rotatably provided in the air separation feeding housing (110), and an air separation transmission spiral (108) for conveying ore is fixedly provided on the air separation transmission shaft (107); The screening part (2) comprises a detachable screening filter arranged on a bracket.

2. The sand and gravel air separator suitable for different particle sizes according to claim 1, characterized in that: The bracket comprises a screening bottom plate (201) and a screening support frame 1 (205) and a screening support frame 2 (206) fixedly arranged on the screening bottom plate (201); the screening support frame 1 (205) and the screening support frame 2 (206) are both provided with mounting holes for mounting a screening filter.

3. The sand and gravel air separator suitable for different particle sizes according to claim 2, characterized in that: The screening filter is matched with the mounting hole via a screening mounting pin (207), and the screening filter comprises a screening filter 1 (203) and a screening filter 2 (204), and both the screening filter 1 (203) and the screening filter 2 (204) are provided with filtering holes.

4. The sand and gravel air separator suitable for different particle sizes according to claim 3, characterized in that: A screening collection pool (202) is detachably provided on the screening bottom plate (201) via a chute, and the screening collection pool (202) is used to collect the ore filtered by the screening filter.

5. The sand and gravel air separator suitable for different particle sizes according to claim 4, characterized in that: One end of the air separation transmission shaft (107) is rotatably provided with an air separation reduction gear 1 (101), an air separation reduction gear 2 (102), and an air separation reduction gear 3 (103). The air separation reduction gear 1 (101), the air separation reduction gear 2 (102), and the air separation reduction gear 3 (103) are distributed in a circular array along the rotation center of the air separation transmission shaft (107). The air separation reduction gear 1 (101), the air separation reduction gear 2 (102), and the air separation reduction gear 3 (103) are engaged with the air separation transmission gear (104) and are engaged with the gear ring provided on the air separation fan blade housing (109).

6. The sand and gravel air separator suitable for different particle sizes according to claim 5, characterized in that: The air separation transmission gear (104) is fixedly arranged on the output shaft of the air separation motor (106), and the output shaft of the air separation motor (106) is also fixedly arranged with an air separation blade (105), and an air inlet hole is arranged on the side of the air separation blade housing (109) close to the air separation motor (106).

7. The sand and gravel air separator suitable for different particle sizes according to claim 6, characterized in that: The wind separation transmission spiral blade (108) is provided with a flow hole for gas circulation, and the discharge port is arranged along the axial direction of the wind separation feeding shell (110).

8. The sand and gravel air separator suitable for different particle sizes according to claim 7, characterized in that: A wind separation collection housing (111) is fixedly provided on the wind separation feeding housing (110); the cavity in the wind separation collection housing (111) is communicated with the cavity in the wind separation feeding housing (110); the wind separation collection housing (111) is connected to the collection box (3) through a conduit; and the collection box (3) is fixedly provided on the second screening support frame (206).

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