Wind power screening mechanism, wind power screening device and wind power screening assembly

Abstract

The utility model discloses a wind power screening mechanism, wind power screening device and wind power screening assembly.The wind power screening mechanism comprises a shell and a screening net, the screening net is vertically arranged in the shell and divides the shell into two cavities, the two cavities are the first cavity and the second cavity respectively, and the first cavity is communicated with the second cavity. The shell is provided with a wind material inlet, a coarse material outlet and a tailing outlet, the wind material inlet and the coarse material outlet are both communicated with the first cavity, and the tailing outlet is communicated with the second cavity, so that particle materials enter the first cavity under the conveying of wind power and impact the screening net after being dispersed in the first cavity; the large-particle materials are intercepted in the first cavity by the screening net and discharged through the coarse material outlet, and the fine-particle materials are blown into the second cavity through the powder screening net and finally discharged through the tailing outlet in the second cavity, so that the large-particle materials and the fine-particle materials are separated.

Description

Technical Field

[0001] The utility model belongs to the field of material screening equipment, and in particular relates to a wind screening mechanism, a wind screening device and a wind screening assembly. Background Art

[0002] At present, in the drying system of PVC production industry, whether it is air flow drying bed or cyclone separator, vibrating screen is used as the main means of screening resin materials. Plane vibrating screen or circular shaking screen is mostly used, which can be used for the production of general resin. When it is used in special resin, due to its material characteristics, static electricity is easily formed on the plane vibrating screen. The potential energy and gravity caused by vibration cannot be used to complete the material discharge well, resulting in poor material discharge and affecting resin production. Especially when the subsequent resin has strong adhesion or the screen is too dense, the screening cannot be completed well, forming a production bottleneck. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a wind screening mechanism which has a simple structure and can overcome the electrostatic agglomeration of materials and perform efficient screening.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a wind screening mechanism, including a shell and a screening net, the screening net is vertically arranged in the shell and divides the shell into two chambers, the two chambers are respectively a first chamber and a second chamber, and the shell is provided with an air material inlet, a coarse material outlet and a tail material outlet, the air material inlet and the coarse material outlet are both connected to the first chamber, and the tail material outlet is connected to the second chamber.

[0005] The beneficial effect of the above technical solution is that: in this way, the particulate material enters the first chamber under the conveyance of wind power, and hits the screening net after dispersion in the first chamber, the large particles of material are retained by the screening net in the first chamber and discharged through the coarse material outlet, while the fine particles of material are blown into the second chamber through the powder screening net, and finally discharged through the tail material outlet in the second chamber, thus achieving the separation of large particles and fine particles.

[0006] In the above technical solution, the coarse material outlet is arranged at the lower end of the shell, and the wind material inlet is arranged horizontally and aligned with the screening net.

[0007] The beneficial effect of the above technical solution is that the large particle material in the first chamber can be discharged through the coarse material outlet under the action of gravity, and the air material inlet is aligned with the screening net, so that the material fed into the air material inlet can collide with the screening net and be screened by the powder screening net.

[0008] The above technical solution also includes a material dividing piece, the material dividing portion of which is located in the first chamber and is used to break up and disperse the material delivered from the air material inlet.

[0009] The beneficial effect of the above technical solution is that the material delivered into the air material inlet can be broken up and dispersed by the material separator to facilitate more adequate screening, thereby preventing the material from agglomerating and affecting the screening effect.

[0010] The material dividing component in the above technical solution includes a fan-shaped paddle, a driving motor and a paddle shaft. The paddle shaft passes through the screening net and is rotatably connected to the shell. The fan-shaped paddle is placed in the first chamber and is coaxially fixed on the paddle shaft. The driving motor is arranged outside the shell and is transmission-connected to one end of the paddle shaft.

[0011] The beneficial effects of the above technical solution are: its structure is simple, and the fan-shaped paddle rotates in the first chamber under the drive of the driving motor to break up the material, and at the same time the fan-shaped paddle can also blow air into the second chamber so that the material can not only be broken up, but also can collide with the powder screening net more quickly under the action of the fan-shaped paddle for screening.

[0012] The second purpose of the utility model is to provide a wind screening device which has a simple structure and can perform multi-stage screening and dust separation on granular materials.

[0013] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a wind screening device, comprising a cyclone separator, a dust removal assembly and the wind screening mechanism as described above, the side inlet of the cyclone separator is connected to the tail material outlet, and the top outlet of the cyclone separator is connected to the air inlet of the dust removal assembly.

[0014] The beneficial effect of the above technical solution is that the fine particle material discharged from the tail material outlet can be classified by the cyclone separator, wherein the fine particle material is retained and the powder material is sent to the dust removal assembly for interception.

[0015] The dust removal assembly in the above technical solution includes a bag dust collector, and the air inlet of the bag dust collector is connected to the top outlet of the cyclone separator.

[0016] The beneficial effect of the above technical solution is that it has a good dust removal effect.

[0017] The third purpose of the utility model is to provide a wind screening assembly which has a simple structure and can transport and screen materials by wind.

[0018] In order to achieve the above purpose, the technical solution of the utility model is as follows: a wind screening assembly, including a hopper, an air supply mechanism and the wind screening device as described above, the material outlet of the hopper and the air outlet of the air supply mechanism are both connected to the air material inlet.

[0019] The beneficial effect of the above technical solution is that the material is temporarily stored in the hopper and sent to the air material inlet. At the same time, the air supply mechanism supplies air at the air material inlet so that the material flows into the first chamber under the transportation of wind force.

[0020] The above technical solution also includes a feed pipe, one end of which is connected to the air material inlet, and the other end of which is connected to the air outlet of the air supply mechanism. A bypass interface is provided in the middle of the feed pipe, and the bypass interface is connected to the discharge port of the hopper.

[0021] The beneficial effect of the above technical solution is that the air outlet of the air supply mechanism is aligned with the air material inlet through the material conveying pipe, which makes the effect of wind feeding better.

[0022] The above technical solution also includes a feeding auger, and the discharge port of the hopper is connected to the bypass interface through the feeding auger.

[0023] The beneficial effect of the above technical solution is that the material in the hopper can be transported to the clinker pipe more conveniently and is not affected by the airflow.

[0024] In the above technical solution, an exhaust port is also provided at the upper end of the hopper, and an exhaust valve is provided at the exhaust port.

[0025] The beneficial effect of the above technical solution is that the air pressure in the hopper can be ensured to be balanced with the atmosphere by opening the exhaust valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a cross-sectional view of the wind screening mechanism described in Example 1 of the utility model;

[0027] Figure 2 Another cross-sectional view of the wind screening mechanism described in Example 1 of the utility model;

[0028] Figure 3 It is a cross-sectional schematic diagram of the first chamber in Example 1 of the utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the wind screening device described in Example 2 of the utility model;

[0030] Figure 5 This is a schematic structural diagram of the wind screening assembly described in Example 3 of the utility model.

[0031] In the figure: 1. Wind screening device; 11. Screening mechanism; 111. Shell; 111a. First chamber; 111b. Second chamber; 1111. Wind material inlet; 1112. Coarse material outlet; 1113. Tailing material outlet; 112. Screening net; 113. Material dividing piece; 1131. Fan-shaped paddle; 1132. Driving motor; 1133. Paddle shaft; 12. Cyclone separator; 13. Dust removal assembly; 131. Bag filter; 2. Hopper; 21. Exhaust port; 22. Exhaust valve; 23. Material receiving interface; 3. Air supply mechanism; 31. Fan; 32. Air filter; 4. Material conveying pipe; 41. Bypass interface; 5. Feeding auger. DETAILED DESCRIPTION

[0032] The following describes the principles and features of the present invention. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. All technologies implemented based on the above content of the present invention are included in the scope of protection of the present invention.

[0033] Example 1

[0034] As shown in the figure, this embodiment provides a wind screening mechanism, including a shell 111 and a screening net 112, the screening net 112 is vertically arranged in the shell 111, and divides the shell 111 into two chambers, the two chambers are respectively a first chamber 111a and a second chamber 111b, the shell 111 is provided with an air material inlet 1111, a coarse material outlet 1112 and a tailing material outlet 1113, the air material inlet 1111 and the coarse material outlet 1112 are both communicated with the first chamber 111a, and the tailing material outlet 1113 is communicated with the second chamber 111b, so that the particulate material enters the first chamber under the conveyance of wind force, and hits the screening net after being dispersed in the first chamber, the large particles of material are retained by the screening net in the first chamber and discharged through the coarse material outlet, while the fine particles of material are blown into the second chamber through the powder screening net, and finally discharged through the tailing material outlet in the second chamber, so that the large particles of material and the fine particles of material are separated.

[0035] The wind screening mechanism provided in this embodiment can be applied to the screening of PVC granular materials.

[0036] In the above technical solution, the coarse material outlet 1112 is arranged at the lower end of the shell 111, and the air material inlet is arranged horizontally and aligned with the screening net, so that the large particle material in the first chamber can be discharged through the coarse material outlet under the action of gravity, and the air material inlet is aligned with the screening net, so that the material fed into the air material inlet can collide with the screening net to be screened by the powder screening net.

[0037] like Figure 2 and Figure 3As shown, the above technical solution also includes a material dividing member 113, the material dividing portion of the material dividing member 113 is located in the first chamber 111a, and is used to break up the material fed into the air material inlet 1111 until it is dispersed, so that the material fed into the air material inlet can be broken up by the material dividing member until it is dispersed so as to facilitate more sufficient screening, and avoid the material agglomeration affecting the screening effect, and the material dividing member 113 includes a fan-shaped paddle 1131, a driving motor 1132 and a paddle shaft 1133, and the paddle shaft 1133 passes through the screening net 112 and is connected to the housing 1 11 is rotatably connected, the fan-shaped paddle 1131 is placed in the first chamber 111a and is coaxially fixedly installed on the paddle shaft 1133, the driving motor 1132 is arranged outside the shell 111 and is transmission-connected to one end of the paddle shaft 1133, and its structure is simple, and the fan-shaped paddle is driven by the driving motor to rotate in the first chamber to break up the material, and the fan-shaped paddle can also blow air into the second chamber so that the material can not only be broken up, but also can collide with the powder screening net more quickly for screening under the action of the fan-shaped paddle.

[0038] In this embodiment, the coarse material outlet is arranged at the lowest horizontal height of the lower end of the first chamber, and the coarse material outlet is trumpet-shaped, with the smaller opening end facing downward, the wind material inlet can be considered to be coaxially distributed with the paddle shaft, the horizontal height of the lower end of the second chamber is lower than the horizontal height of the lower end of the first chamber, and the tail material outlet is arranged at the lowest horizontal height of the lower end of the second chamber (this can prevent the sinking fine material in the second chamber from flowing back into the first chamber through the screening net during the downward discharge process), and the tail material outlet is also trumpet-shaped, with the smaller opening end facing downward.

[0039] Preferably, the upper end of the second chamber may be in the shape of a slope (the slope is the end away from the first chamber and tilts downward, so that particles passing through the screening net and entering the second chamber can hit the slope to be diverted downward and discharged through the tailing outlet).

[0040] The material dividing member 113 in this embodiment is equivalent to a fan. When the fan-shaped paddle rotates, it blows air into the second chamber, so that the material entering the first chamber can not only be broken up by the fan-shaped paddle but also be rapidly rushed to the screening net for screening by the action of the airflow. The aperture of the screening net is selected according to the particle size of the material to be screened, which will not be elaborated again.

[0041] Example 2

[0042] like Figure 4As shown, this embodiment provides a wind screening device, including a cyclone separator 12, a dust removal assembly 13 and the wind screening mechanism 11 as described in Example 1, the side inlet of the cyclone separator 12 is connected to the tailing outlet 1113, and the top outlet of the cyclone separator 12 is connected to the air inlet of the dust removal assembly 13, so that the cyclone separator can be used to classify the fine particle material discharged from the tailing outlet, wherein the fine particle material is retained and the powder material is sent to the dust removal assembly for interception (the cyclone separator described in this embodiment is an existing product, and has a top outlet at the top, a bottom outlet at the bottom, and a side inlet at the upper side wall that is tangent to the side wall, wherein the bottom outlet is for discharging the fine particle material separated by the cyclone, and the top outlet is for discharging the airflow and the powder material entrained in the airflow, which belongs to the existing technology and will not be elaborated here).

[0043] The dust removal assembly 13 in the above technical solution includes a bag dust collector 131, and the air inlet of the bag dust collector 131 is connected to the top outlet of the cyclone separator 12, and the dust removal effect is good. Of course, the dust removal assembly can also include a packaged dust collector 132 (the packaged dust collector is a mature dust collector equipment currently available on the market, which will not be described here), and the packaged dust collector 132 is connected to the exhaust port of the bag dust collector 131, so that the bag dust collector 131 and the packaged dust collector 132 can jointly intercept the powder.

[0044] Example 3

[0045] like Figure 5 As shown, this embodiment provides a wind screening assembly, including a hopper 2, an air supply mechanism 3 and a wind screening device 1 as described in Example 2, the material outlet of the hopper 2 and the air outlet of the air supply mechanism 3 are both connected to the air material inlet 1111, so that the material is temporarily stored in the hopper and sent to the air material inlet, and at the same time, the air supply mechanism supplies air at the air material inlet so that the material flows into the first chamber under the transportation of wind.

[0046] The above technical solution also includes a conveying pipe 4, one end of which is connected to the air material inlet 1111, and the other end of which is connected to the air outlet of the air supply mechanism 3. A bypass interface 41 is provided in the middle of the conveying pipe 4, and the bypass interface 41 is connected to the outlet of the hopper 2, so that the outlet of the air supply mechanism is aligned with the air material inlet through the conveying pipe, thereby improving the effect of wind feeding.

[0047] The above technical solution also includes a feeding auger 5, and the discharge port of the hopper 2 is connected to the bypass interface 41 through the feeding auger 5, so that the material in the hopper can be more conveniently transported to the clinker pipe without being affected by the airflow.

[0048] In the above technical solution, the upper end of the hopper 2 is also provided with an exhaust port 21, and the exhaust port is provided with an exhaust valve 22, so that the air pressure in the hopper can be balanced with the atmosphere by opening the exhaust valve. A material receiving interface 23 is also provided at the upper end of the hopper. The upper end of the material receiving interface is a flange ring, which is used to connect with an upstream pipeline or equipment to receive the delivered material.

[0049] The air supply mechanism 3 in this embodiment includes a fan 31 and an air filter 32 (both the fan and the air filter belong to the prior art and are not described here in detail), the interface of the air filter is connected to the air inlet of the fan, and the air outlet of the fan is connected to the corresponding end of the conveying pipe 4.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wind screening mechanism, characterized in that: The invention comprises a shell (111) and a screening net (112); the screening net (112) is vertically arranged in the shell (111) and divides the shell (111) into two chambers, the two chambers being respectively a first chamber (111a) and a second chamber (111b); the shell (111) is provided with an air material inlet (1111), a coarse material outlet (1112) and a tailing material outlet (1113); the air material inlet (1111) and the coarse material outlet (1112) are both in communication with the first chamber (111a), and the tailing material outlet (1113) is in communication with the second chamber (111b).

2. The wind screening mechanism according to claim 1, characterized in that: The coarse material outlet (1112) is arranged at the lower end of the shell (111), and the air material inlet (1111) is arranged horizontally and aligned with the screening net (112).

3. The wind screening mechanism according to claim 1, characterized in that: It also includes a material dividing piece (113), the material dividing portion of which is located in the first chamber (111a) and is used to break up and disperse the material delivered through the air material inlet (1111).

4. The wind screening mechanism according to claim 3, characterized in that: The material dividing member (113) comprises a fan-shaped paddle (1131), a driving motor (1132) and a paddle shaft (1133); the paddle shaft (1133) passes through the screening net (112) and is rotatably connected to the housing (111); the fan-shaped paddle (1131) is placed in the first chamber (111a) and is coaxially fixedly mounted on the paddle shaft (1133); the driving motor (1132) is arranged outside the housing (111) and is drivingly connected to one end of the paddle shaft (1133).

5. A wind screening device, characterized in that: It comprises a cyclone separator (12), a dust removal assembly (13) and a wind screening mechanism (11) as described in any one of claims 1 to 4, wherein the side inlet of the cyclone separator (12) is connected to the tail material outlet (1113), and the top outlet of the cyclone separator (12) is connected to the air inlet of the dust removal assembly (13).

6. The wind screening device according to claim 5, characterized in that: The dust removal assembly (13) comprises a bag dust collector (131), and the air inlet of the bag dust collector (131) is connected to the top outlet of the cyclone separator (12).

7. A wind screening assembly, characterized in that: It comprises a hopper (2), an air supply mechanism (3) and a wind screening device (1) as claimed in claim 5 or 6, wherein the material outlet of the hopper (2) and the air outlet of the air supply mechanism (3) are both connected to the air material inlet (1111).

8. The wind screening assembly according to claim 7, characterized in that: It also comprises a material conveying pipe (4), one end of which is in communication with the air material inlet (1111), and the other end of which is in communication with the air outlet of the air supply mechanism (3); a bypass interface (41) is provided in the middle of the material conveying pipe (4), and the bypass interface (41) is in communication with the material outlet of the hopper (2).

9. The wind screening assembly according to claim 8, characterized in that: It also includes a feeding auger (5), and the discharge port of the hopper (2) is connected to the bypass interface (41) through the feeding auger (5).

10. The wind screening assembly according to any one of claims 7 to 9, characterized in that: The upper end of the hopper (2) is also provided with an exhaust port (21), and an exhaust valve (22) is provided at the exhaust port.

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