Rotary vibration sieve for rice processing

Abstract

The utility model discloses a spin vibration sieve for rice processing, which belongs to the technical field of rice processing, and adopts the technical scheme that the spin vibration sieve comprises a spin vibration sieve main body, the top of the spin vibration sieve main body is communicated with a feeding pipe, and the front side of the spin vibration sieve main body is provided with a dust removal mechanism. Through cooperation of double suction pipes, an upper three-way pipe, a guide-out valve, a filtering structure, a discharge valve and a lower three-way pipe, dust in rice can be rapidly sucked out when the spin vibration screen body conducts screening treatment on the rice, the filtering structure can effectively prevent the dust from entering a dust suction fan, the situation that suction force is affected by accumulated dust in the dust suction fan is avoided, the dust suction and discharge efficiency is greatly improved, and the service life of the dust suction fan is prolonged. In this way, it is guaranteed that dust is removed in time in the screening process, the cleanliness of rice is improved, dust pollution in the spin vibration screen body is reduced, and the service life of the spin vibration screen body is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of rice processing technology, and in particular to a vibrating screen for rice processing. Background Technology

[0002] Rice is a finished product made from paddy through processes such as cleaning, hulling, milling, and finishing. During the processing, rice is screened using a vibrating sieve.

[0003] Existing vibrating screens are suitable for screening and filtering materials such as granules, powders, and viscous liquids. When vibrating screens are used to screen rice, although they can separate some of the dust from the rice, the dust always falls from top to bottom, which may cause dust to adhere to the screened rice and affect the cleanliness of the rice. At the same time, the rice in existing vibrating screens is mostly poured directly from top to bottom, and the flow rate of the rice in the feed pipe is not adjustable, which can easily lead to a large accumulation of rice on the screen and affect the screening efficiency.

[0004] An existing patent (publication number: CN218591084U) discloses a rice vibrating screen. When screening rice, this utility model can use a fan to suck dust out to a dust collection screen, which facilitates dust collection and cleaning, ensuring the cleanliness of the rice after screening. Furthermore, the size of the internal channel of the feed pipe can be adjusted by rotating the knob, thereby controlling the flow rate of rice in the feed pipe and preventing excessive accumulation of rice on the filter screen.

[0005] To address the aforementioned issues, existing patents offer solutions. However, these patents utilize a fan to draw dust onto a dust collection screen to ensure the cleanliness of the rice after sieving. However, with long-term use, two problems arise: First, dust easily adheres to the fan blades, altering their weight distribution and aerodynamic shape, increasing rotational resistance, reducing rotational speed, weakening suction, and affecting dust extraction quality, ultimately impacting the cleanliness of the sieving rice. Second, the dust collection screen accumulates a large amount of dust over time, leading to blockages. Since it cannot be directly removed and cleaned during use, this narrows or even blocks airflow, worsening ventilation, reducing dust handling efficiency. Furthermore, to maintain the normal operation of the vibrating screen equipment, frequent cleaning or replacement of the dust collection screen is required, increasing operating costs and maintenance workload.

[0006] Therefore, a vibrating screen for rice processing is proposed. Utility Model Content

[0007] The purpose of this invention is to provide a vibrating screen for rice processing, which solves the problem in the aforementioned patent where a fan is used to draw dust to a dust collection screen to ensure the cleanliness of the rice after sieving. However, with long-term use, two problems arise: First, dust easily adheres to the fan blades, altering their weight distribution and aerodynamic shape, increasing rotational resistance, reducing rotational speed, weakening suction, and affecting the quality of dust extraction, ultimately impacting the cleanliness of the rice after sieving. Second, the dust collection screen accumulates a large amount of dust over time, causing blockages. Since it cannot be directly removed and cleaned during use, this narrows or even blocks the airflow channel, resulting in poor ventilation and reduced dust handling efficiency. Furthermore, to maintain the normal operation of the vibrating screen, the dust collection screen needs frequent cleaning or replacement, increasing usage costs and maintenance workload.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a rotary vibrating screen for rice processing, comprising a rotary vibrating screen body, wherein a feed pipe is connected to the top of the rotary vibrating screen body, and a dust removal mechanism is provided on the front side of the rotary vibrating screen body;

[0009] The dust removal mechanism includes a double suction pipe connected to the top of the vibrating screen body. The front side of the double suction pipe is connected to an upper T-junction pipe. Both sides of the bottom of the upper T-junction pipe are connected to discharge valves. The bottom of the discharge valves is connected to a filter structure. The filter structure is located on both sides of the front side of the vibrating screen body. The bottom of the filter structure is connected to a discharge valve. The bottom of the discharge valve is connected to a lower T-junction pipe. A dust suction fan is installed at the bottom of the lower T-junction pipe. The absorption end of the dust suction fan is connected to the bottom of the lower T-junction pipe.

[0010] Preferably, the filtration structure includes a filter box connected to the bottom of the discharge valve, the filter boxes being located on both sides of the front side of the vibrating screen body, and the bottom of the filter box being connected to the top of the discharge valve.

[0011] Preferably, the top and bottom of both sides inside the filter box are fixedly connected to slide rails, and a filter screen is provided on the top of the top slide rail.

[0012] Preferably, a purification screen is provided at the top of the bottom slide rail, and the purification screen is located at the bottom of the filter screen.

[0013] Preferably, a protective plate is bolted to the front side of the top of the feed pipe, and the protective plate is arc-shaped.

[0014] Preferably, both sides of the bottom of the double suction pipe are connected to suction buckets, which are located on both sides of the top side inside the vibrating screen body.

[0015] Preferably, a support plate is fixedly connected to the bottom of the dust extraction fan, and the rear side of the support plate is bolted to the front side of the vibrating screen body.

[0016] Preferably, the output end of the vacuum cleaner is provided with a shielding net, which is hexagonal mesh in shape.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application, by setting up a dust removal mechanism, utilizes the powerful suction of a dust extraction fan, along with dual suction pipes, an upper three-way pipe, an outlet valve, a filter structure, an exhaust valve, and a lower three-way pipe, to quickly extract dust from rice during the sieving process of the vibrating screen body. The filter structure effectively prevents dust from entering the dust extraction fan, avoiding the impact of dust accumulation on the suction power of the fan, and greatly improving the dust extraction efficiency. This not only ensures timely removal of dust during the sieving process and improves the cleanliness of the rice, but also reduces dust contamination inside the vibrating screen body and extends its service life.

[0019] 2. By setting up a filtration structure, this application can not only filter and purify the sucked-out dust, but also, with the two filtration structures located on the front side of the vibrating screen body, by closing the outlet valve at the top and the discharge valve at the bottom of a specific filtration structure, the other normal filtration structure can be used for maintenance and cleaning without stopping the vibrating screen body. This achieves uninterrupted operation of the vibrating screen body, significantly reduces maintenance time and costs, greatly improves equipment operating efficiency, and effectively ensures the continuity of rice processing. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the vibrating screen for rice processing according to this utility model;

[0021] Figure 2 This is a structural diagram of the main body of the vibrating screen of this utility model;

[0022] Figure 3 This is a structural diagram of the dust removal mechanism of this utility model;

[0023] Figure 4 This is a structural diagram of the filter structure of this utility model;

[0024] Figure 5 This is a structural diagram of the slide rail of this utility model.

[0025] In the diagram, 1. Vibrating screen body; 2. Feed pipe; 3. Dust removal mechanism; 31. Double suction pipe; 32. Upper tee pipe; 33. Outlet valve; 34. Filter structure; 341. Filter box; 342. Slide rail; 343. Filter screen; 344. Purification screen; 35. Discharge valve; 36. Lower tee pipe; 37. Dust extraction fan; 4. Protective plate; 5. Suction bucket; 6. Support plate; 7. Shielding net. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-5 The present invention provides the following technical solution:

[0028] A vibrating screen for rice processing includes a vibrating screen body 1, a feed pipe 2 connected to the top of the vibrating screen body 1, and a dust removal mechanism 3 provided on the front side of the vibrating screen body 1.

[0029] The dust removal mechanism 3 includes a double suction pipe 31 connected to the top of the vibrating screen body 1. The front side of the double suction pipe 31 is connected to an upper three-way pipe 32. Both sides of the bottom of the upper three-way pipe 32 are connected to outlet valves 33. The bottom of the outlet valves 33 is connected to a filter structure 34. The filter structure 34 is located on both sides of the front side of the vibrating screen body 1. The bottom of the filter structure 34 is connected to a discharge valve 35. The bottom of the discharge valve 35 is connected to a lower three-way pipe 36. A dust suction fan 37 is installed at the bottom of the lower three-way pipe 36. The absorption end of the dust suction fan 37 is connected to the bottom of the lower three-way pipe 36.

[0030] In this embodiment: By setting up the dust removal mechanism 3, after starting the dust collection fan 37, it generates a strong suction force. With the cooperation of the double suction pipe 31, the upper three-way pipe 32, the outlet valve 33, the discharge valve 35, and the lower three-way pipe 36, a stable dust collection airflow channel is formed. When the vibrating screen body 1 performs sieving operations on rice, the double suction pipe 31 sucks in the dust from the rice. Through one of the channels of the upper three-way pipe 32, the dust enters one of the two outlet valves 33, while the other is in a closed state. Then it enters the filter structure 34. The filter structure 34 can effectively filter the dust and prevent it from entering the dust collection fan 37, ensuring the stable operation of the dust collection fan 37. Maintaining strong suction, the filtered air is discharged by the dust extraction fan 37 through the discharge valve 35 and the lower three-way pipe 36. At the same time, since the filter structures 34 are located on both sides of the front of the vibrating screen body 1, when one of the filter structures 34 has accumulated a lot of dust and needs to be cleaned, the outlet valve 33 at the top and the discharge valve 35 at the bottom of the filter structure 34 are closed. At this time, the other filter structure 34 works normally, ensuring that the dust extraction work is uninterrupted. Without affecting the screening operation of the vibrating screen body 1, the closed filter structure 34 can be cleaned and maintained. After cleaning, it can be switched to use. This cycle ensures the continuous and stable operation of the equipment.

[0031] Specifically, such as Figure 4As shown, the filter structure 34 includes a filter box 341 connected to the bottom of the discharge valve 33. The filter boxes 341 are located on both sides of the front side of the vibrating screen body 1, and the bottom of the filter box 341 is connected to the top of the discharge valve 35.

[0032] Specifically, such as Figure 4 As shown, slide rails 342 are fixedly connected to the top and bottom of both sides inside the filter box 341, and a filter screen 343 is provided on the top of the top slide rail 342.

[0033] Specifically, such as Figure 4 As shown, a purification screen 344 is provided on the top of the bottom slide rail 342, and the purification screen 344 is located at the bottom of the filter screen 343.

[0034] In this embodiment: By setting the filter structure 34, when the airflow containing dust enters the filter box 341 from the outlet valve 33, it first passes through the filter screen 343, which can intercept larger dust particles. Then, the air continues to flow downwards and passes through the purification screen 344 located at the bottom. The purification screen 344 further filters the fine dust remaining in the air. The dual filtration ensures that the air entering the vacuum cleaner 37 is basically dust-free, which greatly protects the vacuum cleaner 37 and maintains its stable operation and strong suction. At the same time, the sliding rails 342 on both sides inside the filter box 341 facilitate the installation, disassembly and cleaning of the filter screen 343 and the purification screen 344. When cleaning is required, the filter screen 343 and the purification screen 344 can be directly removed along the sliding rails 342 for cleaning or replacement. The operation is convenient and ensures that the filtration effect is always good.

[0035] Specifically, such as Figure 1 , Figure 2 As shown, a protective plate 4 is bolted to the front side of the top of the feed pipe 2. The protective plate 4 is arc-shaped.

[0036] Specifically, such as Figure 3 As shown, suction buckets 5 are connected to both sides of the bottom of the double suction pipe 31, and the suction buckets 5 are located on both sides of the top side inside the vibrating screen body 1.

[0037] In this embodiment: by setting the protective plate 4 and the suction bucket 5, the arc-shaped protective plate 4 on the front side of the top of the feed pipe 2 can effectively prevent rice from splashing out accidentally when entering the feed pipe 2, avoiding rice waste, and also preventing rice from scattering and polluting the environment around the vibrating screen body 1. The suction buckets 5 on both sides of the bottom of the double suction pipe 31 have a special position design that allows them to more comprehensively cover the area on the top side inside the vibrating screen body 1. When the dust collector 37 is working, the suction bucket 5 can increase the dust capture range and suck dust from further away into the double suction pipe 31, improving the dust collection efficiency.

[0038] Specifically, such as Figure 2As shown, a support plate 6 is fixedly connected to the bottom of the dust extraction fan 37, and the rear side of the support plate 6 is bolted to the front side of the vibrating screen body 1.

[0039] Specifically, such as Figure 3 As shown, the output end of the vacuum cleaner 37 is equipped with a shielding mesh 7, which is a hexagonal grid shape.

[0040] In this embodiment: by setting the support plate 6 and the shielding net 7, the support plate 6 provides stable support for the vacuum cleaner 37, ensuring that it will not shake or shift during operation, thus ensuring the stability of the vacuum cleaner 37. In addition, the hexagonal grid-shaped shielding net 7 set at the output end of the vacuum cleaner 37 can prevent external debris from entering the vacuum cleaner 37 and avoid damaging the fan.

[0041] Working Principle: During the use of the vibrating screen for rice processing, the rice to be screened is first poured into the vibrating screen body 1 through the feed pipe 2. At this time, the vibrating screen body 1 and the dust extraction fan 37 are started. The vibrating screen body 1 begins to screen the rice, while the dust extraction fan 37 generates strong suction. Under the action of suction, the suction buckets 5 on both sides of the bottom of the double suction pipe 31 play their role. Since they are located on both sides of the top inside the vibrating screen body 1, they can fully cover a large area and suck the dust raised during the rice screening process into the double suction pipe 31. After the dust enters the double suction pipe 31 with the airflow, it passes through the upper three-way pipe 32 and enters one of the two outlet valves 33 through one of the channels. The other outlet valve 33 is in the closed state, and then enters the interior of one of the filter boxes 341. The airflow containing dust first passes through the filter screen 343, intercepting larger dust particles. The air is then further filtered by the purification screen 344 to remove fine dust. This double filtration ensures that the air entering the vacuum fan 37 is basically dust-free, ensuring stable operation and suction power of the vacuum fan 37. The filtered air is discharged by the vacuum fan 37 through the discharge valve 35 and the lower three-way pipe 36. During long-term use, if the filter screen 343 and purification screen 344 inside one of the filter boxes 341 accumulate a lot of dust, the outlet valve 33 at the top and the discharge valve 35 at the bottom of the filter box 341 can be closed to allow the other filter box 341 to work normally and maintain uninterrupted vacuuming. At this time, the filter screen 343 and purification screen 344 can be removed for cleaning or replacement along the slide rails 342 on both sides inside the filter box 341. The operation is convenient. After cleaning, the filter screen 343 and purification screen 344 can be switched back for use as needed. This cycle ensures the continuous and stable operation of the vibrating screen body 1.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotary vibration sieve for rice processing, comprising a rotary vibration sieve main body (1), characterized in that: The top of the vibrating screen body (1) is connected to the feed pipe (2), and a dust removal mechanism (3) is provided on the front side of the vibrating screen body (1). The dust removal mechanism (3) includes a double suction pipe (31) connected to the top of the vibrating screen body (1). The front side of the double suction pipe (31) is connected to an upper three-way pipe (32). Both sides of the bottom of the upper three-way pipe (32) are connected to outlet valves (33). The bottom of the outlet valve (33) is connected to a filter structure (34). The filter structure (34) is located on both sides of the front side of the vibrating screen body (1). The bottom of the filter structure (34) is connected to a discharge valve (35). The bottom of the discharge valve (35) is connected to a lower three-way pipe (36). A dust suction fan (37) is installed at the bottom of the lower three-way pipe (36). The absorption end of the dust suction fan (37) is connected to the bottom of the lower three-way pipe (36).

2. The rotary vibration screen for rice processing according to claim 1, characterized in that: The filter structure (34) includes a filter box (341) connected to the bottom of the outlet valve (33). The filter boxes (341) are located on both sides of the front side of the vibrating screen body (1). The bottom of the filter box (341) is connected to the top of the outlet valve (35).

3. The rotary vibrating screen for rice processing according to claim 2, characterized in that: The top and bottom sides of the filter box (341) are fixedly connected to slide rails (342), and a filter screen (343) is provided on the top of the top slide rail (342).

4. The rotary vibration screen for rice processing according to claim 3, characterized in that: A purification screen (344) is provided on the top of the bottom slide rail (342), and the purification screen (344) is located at the bottom of the filter screen (343).

5. The rotary vibrating screen for rice processing according to claim 1, characterized in that: A protective plate (4) is bolted to the front side of the top of the feed pipe (2), and the protective plate (4) is arc-shaped.

6. The rotary vibration screen for rice processing according to claim 1, characterized in that: Both sides of the bottom of the double suction pipe (31) are connected to suction buckets (5), and the suction buckets (5) are located on both sides of the top inside the vibrating screen body (1).

7. The rotary vibrating screen for rice processing according to claim 1, characterized in that: The bottom of the dust extraction fan (37) is fixedly connected to a support plate (6), and the rear side of the support plate (6) is bolted to the front side of the vibrating screen body (1).

8. The rotary vibration screen for rice processing according to claim 1, characterized in that: The output end of the vacuum blower (37) is provided with a shielding net (7), which is a hexagonal mesh shape.

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