Granary dust particle screening device

Abstract

The utility model relates to the technical field of dust removal and screening, in particular to a granary dust particle screening device, and aims to solve the problem that the storage quality of grains in a granary is affected due to the fact that dust particles are contained in the granary. Comprising a main pipe and a plurality of branch pipes communicated with the main pipe, the branch pipes are detachably connected with the main pipe through connecting pieces, dust blocking assemblies are arranged at the ends, close to the main pipe, of the branch pipes, and dust collecting boxes are further arranged between the branch pipes and the main pipe and used for separating and collecting impurities of the main pipe and the branch pipes. Air in the granary can be introduced through the main pipe, a large number of dust particles are screened out through the dust removal assembly, the screened air is discharged through the branch pipes, and the content of the dust particles in the granary is reduced to a great extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to dust screening technical field, concretely relates to a granary dust particle screening device. BACKGROUND

[0002] In the process of grain storage and processing, particulate material (such as rice, wheat, corn, etc.) will produce a large amount of dust and fine particles in the process of transportation, mutual friction, turning and loading and unloading, these dust mainly includes plant debris, mold spores, insect fragments, sand impurities, etc.; these dusts are suspended in the air in the granary, easy to adhere to the grain surface, pipeline and equipment surface, long-term accumulation not only pollutes the quality of grain, but also brings fire, explosion and other safety hazards.

[0003] Such as patent application number CN202222522444.4, a kind of grain processing dust removal device is disclosed;Patent application number CN201921031729.X, a kind of grain dust removal device is disclosed, both are directly dusted to grain, but the grain in the granary in the process of long-term storage, grain is subjected to its own gravity and mutual extrusion, will produce tiny broken or surface debris;Especially in loading and unloading, turning or vibration detection operation, contact friction will constantly produce fine dust;Or the temperature or humidity fluctuation in the warehouse (such as day and night temperature difference, ventilation and dehumidification operation) will make the grain surface slightly expand and shrink, cause shell or surface microcracks, release tiny particles.

[0004] Therefore, only once before cleaning into the warehouse is not enough to completely eliminate the dust problem in the whole storage period, continuous dust removal (such as multi-stage filtration, periodic self-cleaning, airflow classification separation) can ensure that the air in the warehouse is clean, prolong the service life of the equipment and reduce the safety risk, prolong the storage period of grain. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is that the grain in the granary will produce dust particles again in the storage process due to some external factors, which will affect the quality of the storage environment in the warehouse, and the purpose is to provide a granary dust particle screening device, which can remove the dust particles in the warehouse during the storage of grain and improve the storage quality of the granary.

[0006] The utility model realizes the following technical scheme:

[0007] A granary dust particle screening device, comprising a main pipe, a plurality of branch pipes in communication with the main pipe, the branch pipes and the main pipe being detachably connected by connecting pieces, a dust blocking assembly being arranged at one end of the branch pipe close to the main pipe, and a dust collecting box being arranged between the branch pipe and the main pipe, the dust collecting box being used for separating and collecting impurities in the main pipe and the branch pipe.

[0008] In the technical scheme, the connecting piece can be a standard piece, so that various branch pipes and main pipes can be quickly disassembled and recombined without tools, thereby greatly reducing the on-site maintenance time; the main pipe absorbs and conveys the airflow to the branch pipe, and when passing through the dust blocking assembly, a large amount of dust is sieved into the dust collecting box, thereby reducing the content of dust particles in the granary.

[0009] Preferably, the main pipe extends to form a plurality of connecting pipes near the end of the branch pipe, and the connecting piece is arranged at the pipe opening of the connecting pipe and the branch pipe near the connecting end.

[0010] In the technical scheme, the main pipe extends to form a connecting pipe at the end, which is connected with the connecting piece, thereby facilitating assembly and disassembly.

[0011] Preferably, the dust blocking assembly comprises a baffle and a screen, the bottom of the baffle is connected with the inner circumferential wall of the branch pipe, the height of the baffle is less than the inner diameter of the branch pipe, and the screen is connected with the top end of the baffle and the inner circumferential wall of the branch pipe.

[0012] In the technical scheme, the baffle and the screen are combined to preliminarily intercept larger particles, while avoiding the screen from bearing the whole force, thereby prolonging the service life of the screen and improving the sieving durability.

[0013] Preferably, the top of the baffle is inclined toward one side of the adjacent branch pipe.

[0014] In the technical scheme, the inclined baffle can use the advantage of gravity to guide the dust particles to sink into the containing groove, thereby reducing particle rebound and secondary flying, and improving the separation efficiency.

[0015] Preferably, a plurality of dust blocking blocks are fixedly connected to one side of the baffle near the main pipe, the dust blocking blocks are arranged transversely along the end face of the baffle, a plurality of through grooves are further formed in the end face of the baffle on one side of the dust blocking blocks, the through grooves are located above the dust blocking blocks, a containing groove is formed in the baffle, and the containing groove and the through grooves are communicated.

[0016] In the technical scheme, the dust blocking blocks and the through grooves work cooperatively to capture different size particles and introduce them into the containing groove, thereby enhancing the multi-stage interception capability and improving the sieving efficiency.

[0017] Preferably, a transition pipe is further arranged between the branch pipe and the connecting pipe, a dust collecting box is arranged at the bottom of the outer circumferential wall of the transition pipe, a dust collecting cavity is formed in the dust collecting box, the dust collecting cavity and the containing groove are communicated, and a one-way valve is arranged on the dust collecting box.

[0018] In the technical scheme, the transition pipe dust collecting box is communicated with the containing groove and is provided with a one-way valve, so as to ensure the one-way flow of dust and prevent backflow and blockage, thereby being easy to maintain.

[0019] Preferably, the dust collecting cavity is in a conical structure, and the conical bottom faces the baffle.

[0020] In the technical solution, the conical dust collecting cavity automatically gathers the particles at the bottom of the cavity, realizes gravity concentration collection, improves the dust collecting efficiency and reduces the residue.

[0021] Preferably, the first and second screening grooves are spirally arranged and have opposite rotation directions.

[0022] In the technical solution, the first and second screening grooves are spirally arranged and have opposite rotation directions, which generates opposite centrifugal force fields, strengthens the multi-stage separation of the fine particles and improves the screening precision.

[0023] Preferably, the top of the dust collecting cavity is provided with a dust blocking cover, and the dust blocking cover is arc-shaped and has a downward opening.

[0024] In the technical solution, the arc-shaped dust blocking cover effectively slows down the airflow impact, protects the screening structure from being directly impacted by the large particles, and prolongs the service life of the device.

[0025] Preferably, the dust blocking block extends towards the containing groove to form a backstop plate, and the inclination angle of the backstop plate is 30°-60°.

[0026] In the technical solution, the backstop plate with the inclination angle of 30°-60° can ensure the sliding of the particles while preventing backflow, and balances the guiding and anti-blocking effects.

[0027] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0028] 1. The main pipe sucks the dust particles generated in the granary due to various factors, and the airflow discharged from the branch pipe has screened out a large amount of dust particles, which can reduce the content of dust particles in the granary, and the dust blocking cover can prevent most of the dust particles from entering the dust collecting box for collection, which is convenient for subsequent centralized treatment.

[0029] 2. After the airflow drives the dust particles into the containing groove, the dust blocking plate and the backstop plate can effectively prevent the backflow of the dust particles in the dust collecting box, and the dust collecting cavity in the dust collecting box can effectively precipitate the dust particles, and the dust blocking cover can also reduce the overflow and backflow of the dust particles. BRIEF DESCRIPTION OF DRAWINGS

[0030] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present application and constitute a part of the application, do not limit the embodiments of the present application. In the drawings:

[0031] Figure 1 The structure of the present application is shown in the figure;

[0032] Figure 2A sectional view of the utility model;

[0033] Figure 3 A structural schematic view of the dust collecting box and the transition pipe in the utility model;

[0034] Figure 4 A sectional view of the partition plate in the utility model.

[0035] Markings in the drawings and corresponding component names:

[0036] 1, main pipe; 11, connecting pipe; 2, branch pipe; 3, transition pipe; 4, partition plate; 41, screen; 42, dust blocking block; 43, through slot; 44, containing groove; 45, check plate; 5, dust collecting box; 51, dust collecting cavity; 52, dust blocking cover; 6, connecting piece. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further explained in detail below by combining with examples and drawings, and the illustrative embodiment and its explanation of the utility model are only used to explain the utility model, and not as a limitation on the utility model. It should be noted that the utility model has been in the actual research and development stage.

[0038] Example 1

[0039] As shown in Figures 1 to 4 , the embodiment 1 provides a granary dust particle screening device, which comprises a main pipe 1 and a rectifier box, the main pipe 1 is connected with the rectifier box, further comprising a plurality of branch pipes 2 communicated with the main pipe 1, the branch pipe 2 and the main pipe 1 are detachably connected through the connecting piece 6, the branch pipe 2 is provided with a dust blocking assembly at one end close to the main pipe 1, and the dust collecting box 5 is further arranged between the branch pipe 2 and the main pipe 1.

[0040] As shown in Figure 1 and Figure 2 , the end of the main pipe 1 close to the branch pipe 2 extends to form a plurality of connecting pipes 11, and the connecting piece 6 is arranged at the pipe opening close to the connecting end of the connecting pipe 11 and the branch pipe 2.

[0041] Specifically, the main pipe 1 is arranged on the wall in the granary, the main pipe 1 absorbs the air in the granary through the fan and the rectifier machine, the granary is stacked with grain, and dust and fine particles are generated when the grain particles rub against each other, transport and load and unload. These dust and particles will disperse in the air of the granary, the main pipe 1 absorbs the air in the granary, most of the dust and particles fall into the dust collecting box 5 after passing through the connecting pipe 11 and the branch pipe 2, and the airflow is discharged into the granary after passing through the branch pipe 2, so that the content of dust particles in the air of the granary is reduced.

[0042] The connector 6 can be a flange, which can be used to install and remove the connecting pipe 11 and the branch pipe 2, and to clean up the dust particles that are blocked by the dust blocking component. The dust particles will fall into the dust collection box 5 for collection.

[0043] Example 2

[0044] like Figures 2 to 4 As shown, the dust blocking assembly includes a baffle plate 4 and a screen 41. The bottom of the baffle plate 4 is connected to the inner peripheral wall of the branch pipe 2. The height of the baffle plate 4 is less than the inner diameter of the branch pipe 2. The screen 41 is connected to the top of the baffle plate 4 and the inner peripheral wall of the branch pipe 2 respectively.

[0045] like Figures 2 to 4 As shown, the top of the partition 4 is inclined toward the side of the adjacent branch pipe 2.

[0046] like Figures 2 to 4 As shown, a transition pipe 3 is also provided between the branch pipe 2 and the connecting pipe 11. A dust collection box 5 is provided at the bottom of the outer peripheral wall of the transition pipe 3. A dust collection chamber 51 is formed inside the dust collection box 5. The dust collection chamber 51 is connected to the receiving groove 44. A one-way valve is provided on the dust collection box 5.

[0047] like Figures 2 to 4 As shown, a number of dust-blocking blocks 42 are fixedly connected to the side of the partition 4 near the main pipe 1. The dust-blocking blocks 42 are arranged horizontally along the end face of the partition 4. A number of through grooves 43 are also provided on the end face of the partition 4 located on one side of the dust-blocking blocks 42. The through grooves 43 are located above the dust-blocking blocks 42. A receiving groove 44 is provided in the partition 4. The receiving groove 44 and the through grooves 43 are connected.

[0048] Specifically, a transition pipe 3 connects the branch pipe 2 and the connecting pipe 11. The transition pipe 3 is used to connect the branch pipe 2 and the connecting pipe 11. The dust blocking component is located inside the transition pipe 3. In practical applications, the main pipe 1 and the branch pipe 2 are relatively long and are usually fixed to the wall by a bracket, which is inconvenient to disassemble. When cleaning, the connecting bracket can be directly removed and the transition pipe 3 can be removed. Most of the dust particles intercepted by the dust blocking component will fall into the transition pipe 3. Therefore, the transition pipe 3 can be cleaned directly to improve the subsequent dust removal effect.

[0049] After air enters the transition pipe 3 through the connecting pipe 11, the airflow is blocked by the baffle 4 and rises along the inclined baffle 4. It then enters the branch pipe 2 through the screen 41, which can isolate most of the dust particles. In addition, some dust particles are blocked by the dust blocking block 42 when they come into contact with the baffle 4. The dust particles enter the through groove 43 and fall into the receiving groove 44. Then, the dust particles fall into the dust collection chamber 51 of the dust collection box 5. A one-way valve is provided on the outside of the dust collection box 5 to allow air to circulate in the dust collection box 5 and prevent the airflow entering the dust collection box 5 from flowing back into the transition pipe 3. A filter screen can be installed inside the dust collection box 5 near the one-way valve to prevent dust particles from entering the one-way valve.

[0050] The dust blocking plate can make the dust deposited on the surface fall into the dust collecting cavity 51 under the action of gravity and air flow blowing, the dust collecting box 5 and the transition pipe 3 can be separately removed, the accumulated dust can be cleaned, the dust particles in the warehouse can be reduced, and the amount of dust particles when the branch pipe 2 blows air can also be reduced.

[0051] Embodiment 3

[0052] As shown in Figure 2 and Figure 3 , the dust collecting cavity 51 is in a conical structure, and the bottom of the cone faces the partition plate 4.

[0053] The first and second screening grooves are spirally arranged and have opposite rotation directions.

[0054] As shown in Figure 2 and Figure 3 , the top of the dust collecting cavity 51 is provided with a dust blocking cover 52, which is arc-shaped and has an opening downward.

[0055] Specifically, the airflow also enters the dust collecting box 5, and the conical dust collecting cavity 51 can form a vortex along the surface of the dust collecting cavity 51, so that the dust particles fall; preferably, the airflow flows along the first and second screening grooves, which can enhance the screening effect, and the spiral first and second screening grooves can avoid most of the dust particles from flowing back; the opening of the dust blocking cover 52 is downward and arc-shaped, which can block the dust particles in the dust collecting box 5 from turning upward, and further improve the dust removal effect.

[0056] Embodiment 4

[0057] As shown in Figure 4 , the dust blocking block 42 extends towards the containing groove 44 to form a reverse stopping plate 45, and the inclination angle of the partition plate 4 is 30°-60°.

[0058] The dust blocking block 42 extends towards the containing groove 44 to form a reverse stopping plate 45, if there are some dust particles floating up, they will be blocked by the reverse stopping plate 45, the dust blocking block 42 is inclined, and the reverse stopping plate 45 is also inclined, the airflow blown by the transition pipe 3 towards the partition plate 4 is parallel to the transition pipe 3, the dust particles in the containing groove 44 will be blocked by the dust blocking plate, and the airflow entering the through groove 43 and the containing groove 44 will be blocked, which greatly reduces the backflow of dust particles and improves the screening effect.

[0059] The above specific embodiments further illustrate the purpose, technical scheme and beneficial effects of the present application, and it should be understood that the above description is only a specific embodiment of the present application, and is not used to limit the protection scope of the present application, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A grain dust particle sizing device comprising a main pipe (1), characterized in that, Also include several with the main pipe (1) communication branch (2), the branch (2) and main pipe (1) are detachably connected through the connecting piece (6), the branch (2) is provided with dustproof assembly near the end of main pipe (1), the branch (2) and main pipe (1) between also be provided with dust collecting box (5), the dust collecting box (5) is used for separating and collecting the impurities of main pipe (1) and branch (2).

2. A grain dust particle sizing device according to claim 1, characterised in that: The end of the main pipe (1) extends to form a plurality of connecting pipes (11), and the connecting piece (6) is arranged at the pipe opening of the connecting pipe (11) and the branch pipe (2) near the connecting end.

3. A grain dust particle sizing device according to claim 2, characterised in that: The dustproof assembly includes a baffle (4) and a screen (41), the bottom of the baffle (4) is connected with the inner circumferential wall of the branch pipe (2), the height of the baffle (4) is less than the inner diameter of the branch pipe (2), and the screen (41) is connected with the top end of the baffle (4) and the inner circumferential wall of the branch pipe (2) respectively.

4. A grain dust particle sizing device according to claim 3, characterised in that: The top of the baffle (4) is inclined to one side of the adjacent branch pipe (2).

5. A grain dust particle sizing device according to claim 3, wherein: The baffle (4) is fixedly connected with a plurality of dust blocking blocks (42) on one side close to the main pipe (1), the plurality of dust blocking blocks (42) are arranged transversely on the end face of the baffle (4), a plurality of through grooves (43) are also formed in the end face of the baffle (4) on one side of the dust blocking block (42), the through grooves (43) are located above the dust blocking blocks (42), and a containing groove (44) is formed in the baffle (4) and communicates with the through grooves (43).

6. A grain dust particle sizing device according to claim 5, wherein: The transition pipe (3) is further arranged between the branch pipe (2) and the connecting pipe (11), the bottom of the outer circumferential wall of the transition pipe (3) is provided with the dust collecting box (5), the dust collecting cavity (51) is formed in the dust collecting box (5), the dust collecting cavity (51) communicates with the containing groove (44), and the one-way valve is arranged on the dust collecting box (5).

7. A grain dust particle sizing device according to claim 6, characterised in that: The dust collecting cavity (51) is in a conical structure, and the conical bottom faces the baffle (4).

8. A grain dust particle sizing device according to claim 6, wherein: The first screening groove and the second screening groove are respectively formed in the dust collecting cavity (51), and the first screening groove and the second screening groove are in a spiral shape and have opposite rotation directions.

9. A grain dust particle sizing device according to claim 6, wherein: The top of the dust collecting cavity (51) is provided with a dust blocking cover (52), and the dust blocking cover (52) is in an arc shape and has a downward opening.

10. A grain dust particle sizing device according to claim 6, wherein: The dust blocking block (42) extends to form a reverse stopping plate (45) facing the containing groove (44), and the inclination angle of the baffle (4) is 30°-60°.

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