A powder screening device for feed production

Abstract

The utility model discloses belong to fodder screening technical field, concretely is a kind of powder screening device for feed production, including feeding assembly, screening subassembly and cleaning component, feeding assembly includes feed hopper and conveying channel, the bottom inner cavity of feed hopper is communicated with the one end of conveying channel, the other end of conveying channel extends to the top of screening subassembly, and the both ends of conveying channel are rotatably penetrated with the transverse drive rod of sealing bearing. The utility model is through the "horn" shape design of conveying channel and the coplanar setting with the inclined screen upper surface, can make material from conveying channel smooth transition to inclined screen, reduce material accumulation, improve feeding smoothness;Through the design of the inclined angle of the left high right low of inclined screen and the gradually larger mesh from left to right, cooperate the collecting groove and the second discharge port of distribution according to area below, the classification screening of different particle size powder can be realized, improve the accuracy of screening.

Description

Technical Field

[0001] This utility model relates to the field of feed screening technology, specifically a powder screening device for feed production. Background Technology

[0002] In existing feed production, powder screening devices are mainly used to separate feed powders of different particle sizes to meet the particle size requirements of different farming scenarios. The core principle is usually to utilize the difference in mesh size of the screen, using the material's own gravity or external forces (such as vibration or stirring) to force the material through the screen, thus separating small-diameter and large-diameter materials.

[0003] Existing screens are mostly of a single mesh size. If multi-stage screening is required, multiple screens with different mesh sizes usually need to be connected in series. This not only makes the structure complex, but also makes it easy for materials of different particle sizes to mix due to the untimely transfer of materials between the screens. Therefore, it is necessary to develop a powder screening device for feed production. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0006] A powder screening device for feed production includes a feeding component, a screening component, and a cleaning component;

[0007] The feeding assembly includes a feeding hopper and a conveying channel. The bottom inner cavity of the feeding hopper is connected to one end of the conveying channel. The other end of the conveying channel extends to the top of the screening assembly. Both ends of the conveying channel are rotatably connected by a transverse drive rod through a sealed bearing. The shaft of the drive rod is fixedly provided with a spiral conveying blade inside the feeding hopper.

[0008] The screening assembly includes a screening chamber and an inclined screen disposed inside the screening chamber. The bottom of the inclined screen is fixed inside the screening chamber by support legs. The conveying channel inside the screening chamber is shaped like a "trumpet" with a narrow left side and a wide right side. The upper surface of the inclined screen is set with a left-high and right-low orientation. The axis of the drive rod is collinear with the central axis of the conveying channel. The upper surface of the inclined screen is coplanar with the inner surface of the conveying channel in the screening chamber. The inner diameter of the mesh of the inclined screen is divided into multiple regions from left to right, and the mesh diameter in each region gradually increases. The bottom of the screening chamber is provided with a first discharge port and multiple second discharge ports. The first discharge port is located below the lower end of the inclined screen, and the multiple second discharge ports are located in front of the lower part of the inclined screen.

[0009] The cleaning assembly includes a connecting rod fixed at a position inside the conveying channel of the drive rod, and a cleaning rod disposed at the other end of the connecting rod, wherein the tilt angle of the cleaning rod is consistent with the tilt angle of the conveying channel.

[0010] As a preferred embodiment of the powder screening device for feed production described in this utility model, the angle between the inclined screen and the horizontal plane is 15° to 30°, and the bottom of the inner cavity of the first discharge port is inclined with the left side higher than the right side.

[0011] As a preferred embodiment of the powder screening device for feed production described in this utility model, the bottom of the screening chamber is provided with a plurality of collection troughs, each of which is located sequentially below the inclined screen along the bottom length direction of the inclined screen, and the location of the collection trough corresponds to the mesh area of ​​the inclined screen.

[0012] In a preferred embodiment of the feed production powder screening device of the present invention, a plurality of second discharge ports correspond one-to-one with a plurality of collection troughs, and the second discharge ports are respectively opened at the front end of the collection troughs. A partition plate is provided between the collection troughs and between the outermost collection trough and the first discharge port.

[0013] In a preferred embodiment of the powder screening device for feed production described in this utility model, the bottom wall of the inner cavity of the collecting trough gradually decreases from the inside to the outside, and the lowest point is located at the opening of the second discharge port.

[0014] In a preferred embodiment of the feed production powder screening device described in this utility model, a cleaning brush is provided at the end of the cleaning rod away from the connecting rod, and the bristles of the cleaning brush are in contact with the upper surface of the inclined screen.

[0015] As a preferred embodiment of the powder screening device for feed production described in this utility model, the cleaning assembly further includes a follower wheel fixed to the left end of the drive rod. The follower wheel is located on the outside of the feed hopper. A servo reduction motor is fixedly installed on the side wall of the feed hopper. A drive wheel is fixedly installed on the output end of the servo reduction motor through a coupling. The follower wheel and the drive wheel are on the same vertical plane and are driven by a belt. Interlocking anti-slip grooves are provided on the outside of the follower wheel and the drive wheel and on the inside of the belt.

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

[0017] 1. The "trumpet" design of the conveying channel and its coplanar arrangement with the upper surface of the inclined screen allow materials to smoothly transition from the conveying channel to the inclined screen, reducing material accumulation and improving feeding smoothness.

[0018] 2. By tilting the screen at a higher left and lower right angle and by gradually increasing the size of the mesh from left to right, combined with the collection troughs and the second discharge port distributed in different areas below, it is possible to classify and screen powders of different particle sizes, thereby improving the accuracy of screening.

[0019] 3. The sweeping rod is tilted at the same angle as the conveyor channel, and the sweeping brush contacts the upper surface of the inclined screen. Combined with the rotation of the drive rod, the screen can be cleaned in a targeted manner, reducing screen clogging. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This utility model Figure 1 A structural diagram in the rear view direction;

[0023] Figure 3 This is a schematic diagram of the internal structure of the main view of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the inclined screen, collection trough and other components of this utility model.

[0025] In the diagram: Feeding assembly - 100; Feeding hopper - 101; Conveying channel - 102; Drive rod - 103; Spiral conveyor blade - 104; Screening assembly - 200; Screening bin - 201; Inclined screen - 202; Support leg - 203; First discharge port - 204; Second discharge port - 205; Cleaning assembly - 300; Connecting rod - 301; Cleaning rod - 302; Collection trough - 206; Divider plate - 207; Cleaning brush - 303; Follower wheel - 304; Servo geared motor - 305; Drive wheel - 306; Belt - 307. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0030] Please see Figures 1-4 The diagram shown is a structural schematic of an embodiment of a powder screening device for feed production according to this utility model. Please refer to [link / reference]. Figures 1-4 This paper provides a detailed description of a powder screening device for feed production.

[0031] A powder screening device for feed production includes a feeding component 100, a screening component 200, and a cleaning component 300.

[0032] The feeding assembly 100 includes a feeding hopper 101 and a conveying channel 102. The bottom inner cavity of the feeding hopper 101 is connected to one end of the conveying channel 102. The other end of the conveying channel 102 extends above the screening assembly 200. Both ends of the conveying channel 102 are rotatably connected by a transverse drive rod 103 through a sealed bearing. The rod body of the drive rod 103 is fixedly provided with a spiral conveying blade 104 inside the feeding hopper 101.

[0033] The screening assembly 200 includes a screening chamber 201 and an inclined screen 202 disposed inside the screening chamber 201. The bottom of the inclined screen 202 is fixed inside the screening chamber 201 by support legs 203. The conveying channel 102 inside the screening chamber 201 is shaped like a "trumpet," narrower on the left and wider on the right. The upper surface of the inclined screen 202 is set with the left side higher than the right side. The axis of the drive rod 103 is collinear with the central axis of the conveying channel 102. The upper surface of the inclined screen 202 is coplanar with the inner surface of the conveying channel 102 in the screening chamber 201. The inner diameter of the mesh of the inclined screen 202 is divided into multiple regions from left to right, and each... The mesh size gradually increases within each area. The bottom of the screening chamber 201 is provided with a first discharge port 204 and multiple second discharge ports 205. The first discharge port 204 is located below the lower end of the inclined screen 202, and the multiple second discharge ports 205 are located in front of the lower part of the inclined screen 202. The "trumpet" design of the conveying channel 102 and its coplanar arrangement with the upper surface of the inclined screen 202 help the material to smoothly transition from the conveying channel to the inclined screen 202, reducing material accumulation. The mesh size of the inclined screen 202 gradually increases from left to right. In conjunction with the first discharge port 204 and multiple second discharge ports 205, it can realize the classification and screening of powders of different particle sizes.

[0034] The cleaning assembly 300 includes a connecting rod 301 fixed to the drive rod 103 at a position inside the conveying channel 102, and a cleaning rod 302 disposed at the other end of the connecting rod 301. The tilt angle of the cleaning rod 302 is consistent with the tilt angle of the conveying channel 102. The consistent tilt angle between the cleaning rod 302 and the conveying channel 102 enables targeted cleaning of the screen and reduces screen clogging.

[0035] Furthermore, the inclined screen 202 has an angle of 15° to 30° with the horizontal plane, and the bottom of the inner cavity of the first discharge port 204 is inclined with the left side higher than the right side. The 15° to 30° angle between the inclined screen 202 and the horizontal plane is designed to facilitate the sliding of materials along the screen surface under the action of gravity, ensuring the continuous screening process. The inclined setting at the bottom of the first discharge port 204 helps large-diameter materials falling from the end of the inclined screen 202 to be discharged smoothly, reducing residue.

[0036] Furthermore, the bottom of the screening chamber 201 is provided with a plurality of collection troughs 206. Each collection trough 206 is located sequentially below the inclined screen 202 along the bottom length direction of the inclined screen 202. The location of the collection trough 206 corresponds to the mesh area of ​​the inclined screen 202. The plurality of collection troughs 206 correspond to different mesh areas of the inclined screen 202, which can collect undersize materials of different particle sizes in separate sections, avoid mixing of powders of different particle sizes, and help improve the accuracy of graded collection.

[0037] Furthermore, multiple second discharge ports 205 correspond one-to-one with multiple collection troughs 206, and the second discharge ports 205 are respectively opened at the front end of the collection troughs 206. A partition plate 207 is provided between the collection troughs 206 and between the outermost collection trough 206 and the first discharge port 204. The one-to-one correspondence between the second discharge ports 205 and the collection troughs 206 facilitates the separate discharge of graded materials. The partition plate 207 can effectively prevent materials from different collection areas from mixing and improve the separation effect of materials after screening.

[0038] Furthermore, the bottom wall of the inner cavity of the collection tank 206 gradually decreases from the inside to the outside, and the lowest point is located at the opening of the second discharge port 205. The inclined design of the bottom wall of the inner cavity of the collection tank 206 appropriately utilizes gravity to promote the material in the tank to flow towards the second discharge port 205, reducing the residue of material in the collection tank 206 and facilitating the smooth discharge of material.

[0039] Furthermore, a cleaning brush 303 is provided at the end of the cleaning rod 302 away from the connecting rod 301. The bristles of the cleaning brush 303 are in contact with the upper surface of the inclined screen 202. The cleaning brush 303 is in contact with the upper surface of the inclined screen 202, which can directly clean the screen surface, further reduce mesh blockage, and extend the cleaning cycle of the screen.

[0040] Furthermore, the cleaning assembly 300 also includes a follower wheel 304 fixed to the left end of the drive rod 103. The follower wheel 304 is located on the outside of the feed hopper 101. A servo geared motor 305 is fixedly installed on the side wall of the feed hopper 101. A drive wheel 306 is fixedly installed on the output end of the servo geared motor 305 through a coupling. The follower wheel 304 and the drive wheel 306 are on the same vertical plane and are driven by a belt 307. Interlocking anti-slip grooves are provided on the outer sides of the follower wheel 304 and the drive wheel 306 and the inner side of the belt 307. The servo geared motor 305 drives the drive rod 103 through the drive wheel 306, the belt 307 and the follower wheel 304. With the interlocking anti-slip grooves, slippage during transmission can be reduced, ensuring the synchronous operation of the cleaning assembly 300 and the spiral conveyor blade 104 and improving the stability of the device operation.

[0041] The specific operating procedure of this feed production powder screening device is as follows:

[0042] Start the equipment: Start the servo geared motor 305. The output end of the servo geared motor 305 drives the drive wheel 306 to rotate. Through the transmission cooperation of the belt 307 and the follower wheel 304, the power of the drive wheel 306 is transmitted to the follower wheel 304, which in turn drives the drive rod 103 to rotate stably in the conveying channel 102 through the sealed bearing.

[0043] Material conveying: The powder to be screened is added to the feed hopper 101. When the drive rod 103 rotates, the spiral conveying blades 104 on its rod rotate synchronously, pushing the powder in the feed hopper 101 along the conveying channel 102 into the screening chamber 201. Since the conveying channel 102 is in the shape of a "trumpet" that is narrow on the left and wide on the right in the screening chamber 201, and the upper surface of the inclined screen 202 is coplanar with the inner surface of the conveying channel 102, the powder can smoothly transition from the end of the conveying channel 102 to the inclined screen 202.

[0044] Grading and screening: The inclined screen 202 is set with the left side higher than the right side. Under the action of gravity, the powder slides to the right along the screen surface. The inner diameter of the mesh of the inclined screen 202 gradually increases from left to right. During the sliding process, the small-diameter powder first falls into the corresponding collection tank 206 below through the small holes in the left area. The medium-diameter powder slides to the middle area with the material and falls into the middle collection tank 206 through the corresponding mesh. The larger-diameter powder continues to slide. Finally, the largest-diameter powder that does not pass through the screen slides from the lower end of the inclined screen 202 to the first discharge port 204.

[0045] Material discharge: The powder in each collection tank 206 is discharged from the corresponding second discharge port 205 under the action of gravity because the bottom wall of the inner cavity gradually decreases from the inside to the outside; the largest particle size powder in the first discharge port 204 can also be discharged smoothly because the bottom is inclined from left to right. At the same time, the partition plate 207 between the collection tanks 206 and between the collection tank 206 and the first discharge port 204 can prevent the mixing of materials in different areas.

[0046] Screen cleaning: When the drive rod 103 rotates, it drives the connecting rod 301 and the cleaning rod 302 to rotate synchronously. The cleaning brush 303 at the end of the cleaning rod 302 contacts the upper surface of the inclined screen 202, which can clean the screen surface and mesh, reducing powder blockage.

[0047] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A powder screening device for feed production, comprising a feeding assembly (100), a screening assembly (200), and a cleaning assembly (300), characterized in that: The feeding assembly (100) includes a feeding hopper (101) and a conveying channel (102). The bottom inner cavity of the feeding hopper (101) is connected to one end of the conveying channel (102). The other end of the conveying channel (102) extends to the top of the screening assembly (200). Both ends of the conveying channel (102) are rotatably connected by a transverse drive rod (103) through a sealed bearing. The rod body of the drive rod (103) is fixedly provided with a spiral conveying blade (104) inside the feeding hopper (101). The screening assembly (200) includes a screening chamber (201) and an inclined screen (202) disposed inside the screening chamber (201). The bottom of the inclined screen (202) is fixed inside the screening chamber (201) by a support leg (203). The conveying channel (102) inside the screening chamber (201) is shaped like a "trumpet" with a narrow left side and a wide right side. The upper surface of the inclined screen (202) is set with a high left side and a low right side. The axis of the drive rod (103) is collinear with the central axis of the conveying channel (102). The upper surface of the inclined screen (202) is coplanar with the inner surface of the conveying channel (102) located in the screening bin (201). The inner diameter of the mesh of the inclined screen (202) is divided into multiple regions from left to right, and the mesh diameter in each region gradually increases. The bottom of the screening bin (201) is provided with a first discharge port (204) and multiple second discharge ports (205). The first discharge port (204) is located below the lower end of the inclined screen (202), and the multiple second discharge ports (205) are located in front of the lower part of the inclined screen (202). The cleaning assembly (300) includes a connecting rod (301) fixed to the drive rod (103) at a position inside the conveying channel (102), and a cleaning rod (302) disposed at the other end of the connecting rod (301), the tilt angle of the cleaning rod (302) being consistent with the tilt angle of the conveying channel (102).

2. The powder screening device for feed production according to claim 1, characterized in that, The angle between the inclined screen (202) and the horizontal plane is 15° to 30°, and the bottom of the inner cavity of the first discharge port (204) is inclined with the left side higher than the right side.

3. The powder screening device for feed production according to claim 1, characterized in that, The bottom of the screening chamber (201) is provided with a plurality of collection troughs (206). Each collection trough (206) is located below the inclined screen (202) along the bottom length direction of the inclined screen (202). The location of the collection trough (206) corresponds to the mesh area of ​​the inclined screen (202).

4. The powder screening device for feed production according to claim 3, characterized in that, Multiple second discharge ports (205) correspond one-to-one with multiple collection troughs (206), and the second discharge ports (205) are respectively opened at the front end of the collection troughs (206). A partition plate (207) is provided between the collection troughs (206) and between the outermost collection trough (206) and the first discharge port (204).

5. A powder screening device for feed production according to claim 4, characterized in that, The inner wall of the collection tank (206) gradually decreases from the inside to the outside, and the lowest point is located at the opening of the second discharge port (205).

6. The powder screening device for feed production according to claim 1, characterized in that, A cleaning brush (303) is provided at the end of the cleaning rod (302) away from the connecting rod (301), and the bristles of the cleaning brush (303) are in contact with the upper surface of the inclined screen (202).

7. The powder screening device for feed production according to claim 1, characterized in that, The cleaning assembly (300) also includes a follower wheel (304) fixed to the left end of the drive rod (103). The follower wheel (304) is located on the outside of the feed hopper (101). A servo geared motor (305) is fixedly installed on the side wall of the feed hopper (101). A drive wheel (306) is fixedly installed on the output end of the servo geared motor (305) through a coupling. The follower wheel (304) and the drive wheel (306) are on the same vertical plane and are driven by a belt (307). The outer sides of the follower wheel (304) and the drive wheel (306) and the inner side of the belt (307) are provided with interlocking anti-slip grooves.

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