Desanding winnowing device

Abstract

The utility model discloses a desanding and winnowing device, which relates to the technical field of desanding and winnowing and comprises a sorting box. The sorting box comprises a box body; a feeding hole and an extraction hole are respectively formed in two ends of the top of the box body; wherein; the feeding hole and the spiral conveyor are mounted in a matched manner; the extraction opening is matched and connected with the fan; the box body is provided with a valve plate between the feed port and the extraction port; the spiral conveyor quantitatively conveys sand powder to the feed inlet, the separation quality is effectively guaranteed when the sand powder is separated, after the sand powder enters the box body, an insertion plate on a ventilation opening in the bottom of the feed inlet is opened, the sand powder is separated through a sieve plate, the separated coarse sand powder falls to a material separation cover, and the sand powder is separated through a sieve plate. Air is blown into the box body through ventilation openings in the bottom of a feeding opening, coarse sand powder is further dispersed through a material distribution cover, light fine sand powder is blown upwards through air at the ventilation openings, the fine sand powder is collected in folded edges at the bottom of the material distribution cover, the positions of inserting plates on the two ventilation openings are adjusted, and therefore the sand powder separation quality is guaranteed.

Description

Technical Field

[0001] This utility model specifically relates to the field of sand removal and air separation technology, and specifically to a sand removal and air separation device. Background Technology

[0002] Sand separation is a process that separates sand particles from other useful components in materials; its main purpose is to improve the quality of materials and remove sandy impurities that may affect subsequent processing or product performance.

[0003] When sanding boards, coarse and fine sand powders are generated. Since the quality of coarse and fine sand powders is different, it is necessary to effectively separate them after sanding and collect them separately. However, current traditional equipment cannot effectively separate the mixed coarse and fine sand powders, which results in the waste of fine sand powder.

[0004] Existing air separation devices transport sand powder into the chamber and extract it under negative pressure using the weight of the sand powder itself. However, when there is a large amount of sand powder falling or when it clumps together during the separation process, the negative pressure extraction device cannot separate the sand powder in a short time, resulting in incomplete sand powder separation. Increasing the pressure of the negative pressure extraction may cause all the sand powder to enter the negative pressure extraction device, making it impossible to effectively separate the sand powder.

[0005] A search revealed that Chinese Patent Publication No. CN202020843787.9 discloses a fiberboard sanding powder recovery device, comprising: a dust collection hood installed above a sanding workbench, one end of which is connected to a dust collection pipe; a bag filter dust collector with its inlet connected to the other end of the dust collection pipe; a dust removal fan connected to the dust collection pipe; a sanding powder conveying pipe with one end connected to the outlet of the bag filter dust collector; a feeding fan connected to the sanding powder conveying pipe; an L-shaped settling pipe with an expanding pipe and a contracting pipe at its two ends, connected to the sanding powder conveying pipe, the diameter of the settling pipe being larger than the diameter of the sanding powder conveying pipe; a screw conveyor; and a powder storage bin connected to the powder outlet of the screw conveyor.

[0006] When the device in the aforementioned patent is in operation, sand and powder enter from the dust collection hood and are transported to the bag filter dust collection box through the dust collection pipe. At this time, the discharge valve at the bottom of the bag filter dust collection box is closed, and the air inside the bag filter dust collection box does not circulate. This will cause the sand and powder to be incompletely extracted by the dust collection fan. After the bag filter dust collection box has separated the sand and powder, the incompletely separated sand and powder will be transported to the screw conveyor by the feeding fan. Thus, the sand and powder separation is insufficient and the separation quality cannot be effectively guaranteed. Utility Model Content

[0007] The purpose of this invention is to provide a sand separation device. In this device, a screw conveyor quantitatively transports sand powder into the housing, effectively ensuring that the extraction port maintains the same negative pressure during sand powder separation. After the sand powder enters the housing through the feed inlet, the baffle plate on the bottom vent of the feed inlet is opened to allow air to enter the housing. The sand powder is then effectively separated by a sieve plate. After sieve plate separation, the valve plate is opened, allowing the fan to extract the sand powder through the extraction port for further separation. After sieve plate separation, the sand powder falls below the sieve plate and is further dispersed by a distribution hood. At this point, the baffle plate on the bottom vent of the extraction port is opened, allowing the lighter sand powder to float upwards and be collected inside the folded edge at the bottom of the distribution hood. This addresses the problems mentioned in the background technology.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A sand removal air separation device includes a separation box; the separation box includes a box body; the top of the box body is provided with a feed inlet and an extraction outlet at both ends; wherein; the feed inlet is installed in conjunction with a screw conveyor; the extraction outlet is connected in conjunction with a blower; a valve plate is provided between the feed inlet and the extraction outlet of the box body; by setting the valve plate, the sand powder entering the box body is effectively separated by natural wind and then separated by negative pressure air separation, thereby effectively ensuring the quality and efficiency of sand removal air separation;

[0010] The box body is equipped with a screening component; the screening component includes a screen plate; the screen plate is installed in conjunction with the inner wall of the box body; the top of the screen plate is provided with multiple symmetrical partitions; the partitions are arranged in a wave shape; the discharge port on the screen plate is located between two adjacent partitions; in this way, when negative pressure extraction is performed, the partitions effectively increase the speed of sand powder movement and achieve the effect of further dispersing the agglomerated sand powder when the sand powder comes into contact with the partitions;

[0011] As a further technical solution of this utility model, a material distribution cover is provided at the bottom of the sieve plate; the material distribution cover is conical; a folded edge is fixedly installed at the bottom of the material distribution cover; the material distribution cover is fixedly installed to the inner wall of the box by two support rods; after the sieve plate has separated the sand powder, the falling sand powder will also contain sand powder of smaller mass, which will be dispersed by the material distribution cover to achieve the separation of sand powder again.

[0012] As a further technical solution of this utility model, multiple round holes are opened on the folded edge; the arc edge of the folded edge fits against the inner walls of both sides of the box; the smaller sand powder is collected at the folded edge by adjusting the insert plate at the ventilation port to blow air into the box.

[0013] As a further technical solution of this utility model, an observation window is installed on one side of the box body; the observation window is located above the sieve plate and the partition plate;

[0014] As a further technical solution of this utility model, the valve plate and the housing are detachably installed; the bottom of the valve plate contacts the sieve plate and is located between two adjacent partitions;

[0015] As a further technical solution of this utility model, the box body has two sets of symmetrical ventilation openings on the side walls at the bottom of the inlet and outlet; the ventilation openings are equipped with adjustable inserts; the sieve plate is located between each set of ventilation openings; the bottom of the box body has a discharge port; the discharge port is installed in conjunction with the collection device.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In use, this utility model uses a screw conveyor to quantitatively transport sand powder to the inlet, which effectively ensures the quality of sand powder separation. After the sand powder enters the box, the insert plate on the vent at the bottom of the inlet is opened to achieve initial separation of the sand powder. The sand powder is separated by a sieve plate. The separated coarse sand powder falls to the distribution hood. Air is blown into the box through the vent at the bottom of the inlet. The distribution hood further disperses the coarse sand powder. The air at the vent blows the lighter fine sand powder upwards, so that the fine sand powder is collected inside the folded edge at the bottom of the distribution hood.

[0018] 2. In this utility model, after the sieve plate separation is completed, the valve plate between the feed port and the extraction port is opened, and the sand powder is extracted by the extraction port through the blower. During the extraction process, the sand powder moves on the sieve plate. The partition plate effectively increases the movement speed of the sand powder and further disperses the sand powder, so that the lighter fine sand powder is collected in a concentrated manner through the extraction port. The sand powder then falls onto the distribution hood. At this time, the discharge port on the ventilation port at the bottom of the extraction port is opened to achieve the separation effect of sand powder again.

[0019] 3. In this utility model, during the separation process, the staff can observe the sand and powder separation inside the box through the observation window, thereby adjusting the position of the insert plates on the two sets of ventilation openings to ensure the quality of sand and powder separation. The discharge port at the bottom of the box is connected to the collection device to collect the separated coarse sand and powder. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This utility model Figure 1 Another perspective structural diagram.

[0022] Figure 3 This utility model Figure 1 A schematic diagram of the bottom structure.

[0023] Figure 4 This utility model Figure 1 The main view.

[0024] Figure 5 This utility model Figure 4 AA sectional view.

[0025] Figure 6 This utility model Figure 3 Schematic diagram of the intermediate screening component.

[0026] Figure 7 This utility model Figure 6 Schematic diagram of the bottom structure of the centrally located material cover.

[0027] Figure 8 This utility model Figure 5 Enlarged view of the local structure at point B in the middle.

[0028] In the diagram: 1-Separation box, 10-Box body, 11-Observation window, 12-Inlet, 13-Extraction port, 14-Valve plate, 15-Insert plate, 16-Outlet, 17-Ventilation port, 2-Screwing assembly, 20-Support rod, 21-Distribution cover, 22-Screwing plate, 23-Baffle plate, 24-Folded edge. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-8 In this embodiment of the utility model, a sand removal air separation device includes a sorting box 1; the sorting box 1 includes a box body 10; the top two ends of the box body 10 are respectively provided with a feed inlet 12 and an extraction port 13; wherein; the feed inlet 12 is installed in conjunction with a screw conveyor; the extraction port 13 is connected in conjunction with a blower; a valve plate 14 is provided between the feed inlet 12 and the extraction port 13 in the box body 10;

[0031] The screening assembly 2 is installed inside the box 10; the screening assembly 2 includes a screen plate 22; the screen plate 22 is installed in conjunction with the inner wall of the box 10; the top of the screen plate 22 is provided with a plurality of symmetrical partitions 23; the partitions 23 are arranged in a wave shape; the discharge port opened on the screen plate 22 is located between two adjacent partitions 23.

[0032] The bottom of the sieve plate 22 is provided with a material distribution cover 21; the material distribution cover 21 is conical; the bottom of the material distribution cover 21 is fixedly installed with a folded edge 24; the material distribution cover 21 is fixedly installed to the inner wall of the box body 10 by two support rods 20.

[0033] By adopting the above technical solution, during use, the screw conveyor is used to quantitatively transport the sand powder to the feed inlet 12, which effectively ensures the quality of sand powder separation. After the sand powder enters the box 10, the insert plate 15 on the ventilation port 17 at the bottom of the feed inlet 12 is opened to achieve the initial separation of sand powder. The sand powder is separated by the sieve plate 22. The separated coarse sand powder falls to the distribution hood 21. Air is blown into the box 10 through the ventilation port 17 at the bottom of the feed inlet 12. The distribution hood 21 further disperses the coarse sand powder. The air at the ventilation port 17 blows the lighter fine sand powder upward, so that the fine sand powder is collected inside the folded edge 24 at the bottom of the distribution hood 21.

[0034] Multiple round holes are provided on the folded edge 24; the arc edge of the folded edge 24 is fitted to the inner walls on both sides of the box body 10.

[0035] In this embodiment, an observation window 11 is installed on one side of the box body 10; the observation window 11 is located above the sieve plate 22 and the partition plate 23;

[0036] By adopting the above technical solution, after the separation is completed by the screen plate 22, the valve plate 14 between the feed port 12 and the extraction port 13 is opened, and the sand powder is extracted by the extraction port 13 by the blower. During the extraction process, the sand powder moves on the screen plate 22. The partition plate 23 effectively increases the movement speed of the sand powder and achieves further dispersion of the sand powder, so that the lighter fine sand powder is collected in a concentrated manner through the extraction port 13. The sand powder then falls onto the distribution hood 21. At this time, the discharge port 16 on the ventilation port 17 at the bottom of the extraction port 13 is opened to achieve the separation effect of sand powder again.

[0037] In this embodiment, the valve plate 14 is detachably installed with the housing 10; the bottom of the valve plate 14 contacts the sieve plate 22 and is located between two adjacent partitions 23.

[0038] The box 10 has two sets of symmetrical ventilation openings 17 on the side walls at the bottom of the inlet 12 and the extraction port 13; an adjustable insert plate 15 is provided inside the ventilation opening 17; the sieve plate 22 is located between each set of ventilation openings 17; the bottom of the box 10 has an outlet 16; the outlet 16 is installed in conjunction with the collection device.

[0039] By adopting the above technical solution, during the separation process, the staff can observe the sand and powder separation inside the box 10 through the observation window 11, thereby adjusting the position of the insert plates 15 on the two sets of ventilation ports 17 to ensure the quality of sand and powder separation. The discharge port 16 at the bottom of the box 10 is connected to the collection device to collect the separated coarse sand and powder.

[0040] The working principle of this utility model is as follows: During use, a screw conveyor is used to quantitatively transport sand powder to the feed inlet 12, which effectively ensures the quality of sand powder separation. After the sand powder enters the box 10, the insert plate 15 on the ventilation port 17 at the bottom of the feed inlet 12 is opened to achieve initial separation of sand powder. The sand powder is separated by the sieve plate 22. The separated coarse sand powder falls to the distribution hood 21. Air is blown into the box 10 through the ventilation port 17 at the bottom of the feed inlet 12. The distribution hood 21 further disperses the coarse sand powder. The air at the ventilation port 17 blows the lighter fine sand powder upward, so that the fine sand powder is collected inside the folded edge 24 at the bottom of the distribution hood 21.

[0041] After the separation is completed by the screen plate 22, the valve plate 14 between the feed port 12 and the extraction port 13 is opened, and the sand powder is extracted by the extraction port 13 by the blower. During the extraction process, the sand powder moves on the screen plate 22. The partition plate 23 effectively increases the speed of the sand powder movement and further disperses the sand powder, so that the lighter fine sand powder is collected in a concentrated manner through the extraction port 13. The sand powder then falls onto the distribution hood 21. At this time, the discharge port 16 on the ventilation port 17 at the bottom of the extraction port 13 is opened to achieve the separation effect of sand powder again.

[0042] During the separation process, the staff observes the sand and powder separation inside the box 10 through the observation window 11, thereby adjusting the position of the insert plates 15 on the two sets of ventilation ports 17 to ensure the quality of sand and powder separation. The discharge port 16 at the bottom of the box 10 is connected to the collection device to collect the separated coarse sand and powder.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sand removal and air separation device, characterized in that: The system includes a sorting box (1); the sorting box (1) includes a box body (10); the top two ends of the box body (10) are respectively provided with a feed inlet (12) and an extraction port (13); wherein; the feed inlet (12) is installed in conjunction with a screw conveyor; the extraction port (13) is connected in conjunction with a fan; a valve plate (14) is provided between the feed inlet (12) and the extraction port (13) of the box body (10); The box (10) is equipped with a screening component (2); the screening component (2) includes a screen plate (22); the screen plate (22) is installed in conjunction with the inner wall of the box (10); the top of the screen plate (22) is provided with multiple symmetrical partitions (23); the partitions (23) are arranged in a wave shape; the discharge port opened on the screen plate (22) is located between two adjacent partitions (23).

2. The sand removal and air separation device according to claim 1, characterized in that: The bottom of the sieve plate (22) is provided with a material distribution cover (21); the material distribution cover (21) is conical; the bottom of the material distribution cover (21) is fixedly installed with a folded edge (24); the material distribution cover (21) is fixedly installed to the inner wall of the box (10) by two support rods (20).

3. The sand removal and air separation device according to claim 1, characterized in that: Multiple round holes are provided on the folded edge (24); the arc edge of the folded edge (24) is fitted with the inner walls on both sides of the box body (10).

4. The sand removal and air separation device according to claim 3, characterized in that: An observation window (11) is installed on one side of the box (10); the observation window (11) is located above the sieve plate (22) and the partition plate (23).

5. A sand removal and air separation device according to claim 4, characterized in that: The valve plate (14) is detachably installed with the housing (10); the bottom of the valve plate (14) is in contact with the sieve plate (22) and is located between two adjacent partitions (23).

6. A sand removal and air separation device according to claim 4, characterized in that: The box (10) has two sets of symmetrical ventilation openings (17) on the side walls at the bottom of the inlet (12) and the extraction port (13); the ventilation openings (17) are equipped with adjustable inserts (15); the sieve plate (22) is located between each set of ventilation openings (17); the bottom of the box (10) has a discharge port (16); the discharge port (16) is installed in conjunction with the collection device.

Images