Efficient powder screening system

Abstract

An efficient powder screening system comprises a pulverizer and a screening device, a discharging port of a feeding bin is connected with a coarse powder elevator, the other end of the coarse powder elevator is communicated with a feeding port of the pulverizer, a discharging port of the pulverizer is communicated with a coarse powder bin, and a discharging port of the coarse powder bin is communicated with the screening device through a pipeline. A screening material port of the screening device is communicated with the feeding bin through a coarse material recycling pipe, a bottom discharging port of the screening device is communicated with the temporary storage bin through a fine material conveying pipe, the temporary storage bin is communicated with the fine powder bin through the fine powder elevator, a discharging port of the fine powder bin is communicated with the dust remover, and a dust outlet of the dust remover is communicated with the dust recycling pipe. A discharge hole of the dust remover is communicated with a finished product bin through a pipeline; the powder recovery system is arranged, and the internal structure of the screening machine is adjusted, so that the screening efficiency can be greatly improved, the powder utilization rate can be improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of powder material production, in particular to a powder material high-efficiency screening system. Background Art

[0002] Aminoglycoside antibiotics are a class of broad-spectrum antimicrobial drugs that are widely used and require therapeutic drug monitoring, including gentamicin (GM), streptomycin (SM), kanamycin (KM), paromomycin (PM), neomycin (NM), etc. The basic structure of this class of antibiotics is a glycoside formed by the condensation of aminocyclitol and aminosugar, containing amino groups or other basic groups. Antibiotics are widely used in veterinary and animal husbandry production.

[0003] In the process of preparing the above antibiotics, they need to be synthesized, cultured, fermented, separated and purified. The fermentation process requires a large amount of rice flour. Production companies usually purchase finished broken rice and crush it as fermentation raw materials. This process uses a grinder, and the grinder in the powder room is an assembled equipment. In order to ensure that the rice flour crushed by the grinder reaches 100% of the 40-mesh sieve and 90% of the 60-mesh sieve, the factory will install a vibrating screen at the outlet of the grinder. The current grinder screen has a total of 9 layers, and the screening efficiency is usually slow. The crushed powder will also often block the discharge port due to low screening efficiency. Summary of the invention

[0004] In view of the technical problems existing in the background technology, the utility model provides a high-efficiency powder screening system. The system can not only greatly improve the screening efficiency, but also improve the powder utilization rate and reduce production costs by setting a powder recovery system and adjusting the internal structure of the screening machine.

[0005] A high-efficiency powder screening system comprises a pulverizer and a screening device, wherein the discharge port of a feed bin is connected to a coarse powder elevator, the other end of the coarse powder elevator is connected to the feed port of the pulverizer, the discharge port of the pulverizer is connected to the coarse powder bin, the discharge port of the coarse powder bin is connected to the screening device through a pipeline, the screening port of the screening device is connected to the feed bin through a coarse material recovery pipe, the bottom discharge port of the screening device is connected to a buffer bin through a fine material conveying pipe, the buffer bin is connected to the fine powder bin through a fine powder elevator, the discharge port of the fine powder bin is connected to a dust collector, the dust outlet of the dust collector is connected to the dust recovery pipe, and the discharge port of the dust collector is connected to a finished product bin through a pipeline.

[0006] In a preferred embodiment, the screening device includes a device shell, which has an internal hollow structure, the bottom of the device shell is connected to a vibration base, a screen is inserted into the front of the device shell, both sides of the device shell are connected to screening boxes, a receiving box is provided below the screening box, the upper end of the receiving box is open, and the bottom of the receiving box is connected to a coarse material recovery pipe.

[0007] In a preferred solution, the screen is relatively inclined inside the device housing, coarse powder material openings are opened on both sides of the device housing, the coarse powder material openings are arranged at the ends of the screen, and the device housing is connected to the screen box through the coarse powder material openings.

[0008] In a preferred embodiment, the aperture sizes of the screens are arranged to decrease from top to bottom.

[0009] A powder material efficient screening system, the system has the following advantages:

[0010] 1. This system is equipped with a powder screening and recovery device, which can recover the unqualified powder screened out and crush it again, thereby improving the utilization rate of the powder, reducing the principle loss and reducing the production cost;

[0011] 2. This system can improve the screening efficiency of powder materials by changing the discharging method of the screening machine and reasonably setting the distribution of the screen, and prevent the powder materials from blocking the discharge port due to slow screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0013] Figure 1 This is a schematic diagram of the overall system of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the screening device of the utility model;

[0015] Figure 3 It is a planar cross-sectional view of the internal structure of the screening device of the utility model.

[0016] In the figure: feed bin 1, coarse powder elevator 2, crusher 3, screening device 4, device housing 401, screening box 402, screen 403, vibrating base 404, receiving box 405, coarse powder material port 406, coarse powder bin 501, fine powder bin 502, coarse material recovery pipe 6, fine material conveying pipe 6, buffer bin 8, fine powder elevator 9, dust collector 10, dust recovery pipe 11, finished product bin 12. DETAILED DESCRIPTION

[0017] like Figure 1As shown, a powder material efficient screening system includes a pulverizer 3 and a screening device 4, the discharge port of the feed bin 1 is connected to the coarse powder elevator 2, the other end of the coarse powder elevator 2 is connected to the feed port of the pulverizer 3, the discharge port of the pulverizer 3 is connected to the coarse powder bin 501, the discharge port of the coarse powder bin 501 is connected to the screening device 4 through a pipeline, the screening port of the screening device 4 is connected to the feed bin 1 through a coarse material recovery pipe 6, the bottom discharge port of the screening device 4 is connected to the buffer bin 8 through a fine material conveying pipe 7, the buffer bin 8 is connected to the fine powder bin 502 through a fine powder elevator 9, the discharge port of the fine powder bin 502 is connected to the dust collector 10, the dust outlet of the dust collector 10 is connected to the dust recovery pipe 11, and the discharge port of the dust collector 10 is connected to the finished product bin 12 through a pipeline;

[0018] During the production process of powder, the raw materials are transported to the pulverizer 3 through the coarse powder elevator 2 for crushing, and the crushed powder is then transported to the coarse powder bin 501 for buffering. To ensure that the size of the powder meets the requirements, it will be transported to the screening device 4 for screening;

[0019] After the powder is screened, qualified products will be transported to the buffer bin 8 through the fine material conveying pipe 7 for temporary storage, and the unqualified powder screened out will be returned to the feed bin 1 through the coarse material recovery pipe 6 and then repeatedly ground and screened. The fine material in the buffer bin 8 will be transported to the fine powder bin 502 through the fine material conveying pipe 7 for temporary storage. Finally, after passing through the dust collector 10, the finished powder is transported to the packaging workshop, and the dust separated by the dust collector 10 is recovered through the dust recovery pipe 11 and reused, which not only reduces the dust on site but also further improves the utilization rate of the powder.

[0020] The preferred solution is Figure 2 As shown, the screening device 4 includes a device housing 401, the device housing 401 is an inner hollow structure, the bottom of the device housing 401 is connected to the vibration base 404, the front of the device housing 401 is plugged with a screen 403, both sides of the device housing 401 are connected to a screening box 402, and a material receiving box 405 is arranged below the screening box 402, the upper end of the material receiving box 405 is open, and the bottom of the material receiving box 405 is connected to the coarse material recovery pipe 6;

[0021] The powder is fed into the device through the feed port at the upper end of the housing 401. After being screened by the screen 403, qualified products enter the fine material delivery pipe 7 through the discharge port at the bottom, and unqualified products fall into the screening box 402 and finally fall into the receiving box 405 below and are transported to the coarse material recovery pipe 6.

[0022] The preferred solution is Figure 3As shown, the screen 403 is relatively inclined inside the device housing 401, and coarse powder material ports 406 are opened on both sides of the device housing 401. The coarse powder material ports 406 are arranged at the ends of the screen 403. The device housing 401 is connected to the screening box 402 through the coarse powder material ports 406. Unqualified powder is discharged from the left and right sides, which greatly improves the screening efficiency. The staggered and inclined arrangement of the screen 403 can also improve the screening quality.

[0023] The preferred solution is Figure 3 As shown, the aperture size of the screen 403 is set to decrease from top to bottom. By adopting a multi-stage screen 403, the material screening efficiency is ensured while the situation of material blocking the feed port is reduced. The maximum efficiency of broken rice crushing is adjusted from the initial 3 tons / hour to 4 tons / hour, and the production efficiency is significantly improved.

[0024] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A powder material efficient screening system, comprising a pulverizer (3) and a screening device (4), characterized in that: The discharge port of the feed bin (1) is connected to the coarse powder elevator (2), the other end of the coarse powder elevator (2) is connected to the feed port of the pulverizer (3), the discharge port of the pulverizer (3) is connected to the coarse powder bin (501), the discharge port of the coarse powder bin (501) is connected to the screening device (4) through a pipeline, the screening port of the screening device (4) is connected to the feed bin (1) through a coarse material recovery pipe (6), the bottom discharge port of the screening device (4) is connected to the buffer bin (8) through a fine material delivery pipe (7), the buffer bin (8) is connected to the fine powder bin (502) through the fine powder elevator (9), the discharge port of the fine powder bin (502) is connected to the dust collector (10), the dust outlet of the dust collector (10) is connected to the dust recovery pipe (11), and the discharge port of the dust collector (10) is connected to the finished product bin (12) through a pipeline.

2. The powder material efficient screening system according to claim 1 is characterized in that: The screening device (4) comprises a device housing (401), the device housing (401) being an internally hollow structure, the bottom of the device housing (401) being connected to a vibrating base (404), a screen (403) being plugged into the front of the device housing (401), both sides of the device housing (401) being connected to a screening box (402), a material receiving box (405) being provided below the screening box (402), the upper end of the material receiving box (405) being open, and the bottom of the material receiving box (405) being connected to a coarse material recovery pipe (6).

3. The powder material efficient screening system according to claim 2 is characterized in that: The sieve (403) is arranged relatively inclined inside the device housing (401), and coarse powder material openings (406) are provided on both sides of the device housing (401). The coarse powder material openings (406) are arranged at the ends of the sieve (403), and the device housing (401) is connected to the sieve box (402) through the coarse powder material openings (406).

4. The powder material efficient screening system according to claim 2 is characterized in that: The aperture sizes of the screen (403) are arranged to decrease from top to bottom.

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