Cylindrical precleaner
By setting up filter components and hard brushes in the cylinder initial cleaning screen, the problem of dust floating inside the grain is solved, dust collection and mesh cleaning are achieved, workers' health is protected and the screening is ensured.
Patent Information
- Application Number
- CN202420819927.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-04-19
AI Technical Summary
During the initial cleaning and screening of the food in the cylinder, dust inside drifts away, causing dust to spread everywhere, pollute the working environment, affecting workers' health, and may block the mesh of the screen cylinder, affecting grain screening.
A cylinder initial cleaning screen is designed, which contains a filter assembly and a hard bristle brush. The filter assembly sucks dust through the exhaust fan and collects it in the filter box. The hard bristle brush pierces the screen mesh by a reverse rotation to avoid dust clogging.
It effectively prevents dust from drifting around, protects workers' health, and prevents dust from clogging the mesh of the screening cylinder, ensuring the normal progress of grain screening.
Smart Images
Figure CN222469666U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of grain processing equipment, in particular to a cylindrical primary cleaning screen. Background Art
[0002] Before the raw grains enter the raw material warehouse of the processing workshop, they need to be preliminarily cleaned with a cylindrical primary cleaning screen, that is, to remove large impurities such as straw, fiber belts, bricks, mud, etc. in the raw grains, so as to improve the quality of the raw grains, avoid blockage and damage to subsequent machinery and equipment, and create conditions for the next process.
[0003] Because grains are usually placed outdoors to be exposed to sunlight before processing, the grains are dried for easy storage and transportation. However, this will cause a large amount of dust inside the grains. When the drum primary screen is performing preliminary impurity removal on the grains, the grains are turned inside the screen drum, and the dust carried inside the grains floats away along the feed and discharge ports, causing dust to pollute the working environment. Workers who work in such a working environment for a long time will suffer health damage, and the screen drum mesh will be blocked, affecting the screening of grains. Utility Model Content
[0004] 1. Technical issues to be resolved
[0005] The purpose of the utility model is to solve the problem that there is a large amount of dust inside the grain. When the cylindrical primary cleaning screen performs preliminary impurity removal on the grain, the grain is turned inside the screen drum, and the dust carried inside the grain floats away and floats out along the feed port and the discharge port, causing dust to pollute the working environment, causing damage to the health of workers who work in such a working environment for a long time, and at the same time clogging the screen drum mesh to affect the screening of the grain. A cylindrical primary cleaning screen is proposed.
[0006] (II) Technical solution
[0007] The technical solution of the utility model to solve the above technical problems is as follows:
[0008] A cylindrical primary cleaning screen comprises an outer shell, a screen drum is arranged inside the outer shell, a driving mechanism for driving the screen drum to rotate is arranged inside the outer shell, a feed hopper is arranged on the outer shell and is located on the left side of the screen drum, a discharge hopper is arranged on the side of the outer shell opposite to the feed hopper, a rotating assembly is arranged on the top inner end of the outer shell, a bristle brush is arranged on the rotating assembly, a reciprocating motor is fixedly installed inside the outer shell, a rubber knocking hammer is fixedly installed on the output end of the reciprocating motor, a cover plate is slidably installed on the top end of the outer shell, a filter assembly is fixedly installed on the top of the cover plate, and a vent hole connected to the interior of the filter assembly is opened on the cover plate.
[0009] On the basis of the above technical solution, the present invention can also be improved as follows.
[0010] Preferably, a fine material port communicating with the bottom of the shell is fixedly mounted, and a sealing curtain located at the top of the discharge hopper is fixedly mounted on the outer side of the shell.
[0011] Preferably, the driving mechanism includes a first motor, the first motor is fixedly mounted on the outside of the outer shell, the output end of the first motor is connected to the screen drum, and two pairs of support wheels are symmetrically mounted on the inner bottom end of the outer shell, and the two pairs of support wheels are respectively fitted with the left and right sides of the bottom of the screen drum.
[0012] Preferably, the rotating assembly comprises a mounting frame, the mounting frame is fixedly mounted on the inner top end of the shell, a bristle brush is rotatably mounted inside the mounting frame, and a second motor connected to one end of the bristle brush is fixedly mounted on the inner top end of the shell.
[0013] Preferably, the filter assembly comprises a filter box, the filter box is fixedly mounted on the top of the cover plate, a filter plate is movably mounted inside the filter box, and an exhaust fan located inside the filter box is fixedly mounted on a side of the filter plate away from the vent.
[0014] (III) Beneficial effects
[0015] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:
[0016] The utility model provides a filter assembly, and during processing, the sieve drum continuously turns over the grains inside by rotating, so that the dust attached to the grains is stirred and scattered as the sieve drum rotates, and then is sucked into the filter box by the exhaust fan for collection, and at the same time, the reversely rotating hard-bristle brush can use the hard bristles thereon to poke and clean the mesh on the sieve drum, so as to prevent the mesh from being blocked by dust and affecting the falling of grains. While effectively preventing the sieve drum from being blocked by dust, the dust is collected and prevented from being scattered, so that workers are prevented from working in a dusty working environment, thereby protecting the workers' health. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0018] Figure 2 This is a cross-sectional view of the main structure of the utility model;
[0019] Figure 3 It is a left-side structural sectional view of the utility model.
[0020] In the figure:
[0021] 1. Casing; 2. Screen drum; 3. Driving mechanism; 31. First motor; 32. Support wheel; 4. Feed hopper; 5. Discharge hopper; 6. Rotating assembly; 61. Mounting frame; 62. Second motor; 7. Scrubber brush; 8. Reciprocating motor; 9. Rubber hammer; 10. Cover plate; 11. Filter assembly; 111. Filter box; 112. Filter plate; 113. Exhaust fan; 12. Vent; 13. Fine material port; 14. Sealing curtain. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] In the embodiment, Figure 1-3 A cylindrical primary cleaning screen is provided, comprising an outer shell 1, a screen drum 2 is arranged inside the outer shell 1, a driving mechanism 3 for driving the screen drum 2 to rotate is arranged inside the outer shell 1, a feed hopper 4 is arranged on the left side of the screen drum 2 on the outer shell 1, a discharge hopper 5 is arranged on the side of the outer shell 1 opposite to the feed hopper 4, a rotating assembly 6 is arranged on the inner top of the outer shell 1, a bristle brush 7 is arranged on the rotating assembly 6, a reciprocating motor 8 is fixedly installed inside the outer shell 1, a rubber knocking hammer 9 is fixedly installed on the output end of the reciprocating motor 8, a cover plate 10 is slidably installed on the top of the outer shell 1, a filter assembly 11 is fixedly installed on the top of the cover plate 10, and a vent 12 connected with the inside of the filter assembly 11 is opened on the cover plate 10.
[0024] Reference Figure 1-2 , wherein a fine material port 13 connected thereto is fixedly installed at the bottom of the housing 1, and a sealing curtain 14 located at the top of the discharge hopper 5 is fixedly installed on the outer side of the housing 1;
[0025] Through the above-mentioned structural arrangement, the fine material port 13 is used to discharge the grain after being screened by the screen drum 2, and the sealing curtain 14 is used to block the dust that floats toward the discharge hopper 5 when the equipment is working, so that the dust is uniformly sucked away from the feed hopper 4 by the filter assembly 11.
[0026] Reference Figure 1-3 , wherein the driving mechanism 3 includes a first motor 31, the first motor 31 is fixedly mounted on the outer side of the housing 1, the output end of the first motor 31 is connected to the screen drum 2, and two pairs of support wheels 32 are symmetrically mounted on the inner bottom end of the housing 1, and the two pairs of support wheels 32 are respectively fitted with the left and right sides of the bottom of the screen drum 2;
[0027] Through the above-mentioned structural arrangement, the first motor 31 is started, and the first motor 31 drives the screen drum 2 to rotate on the supporting wheel 32 to screen the grain inside. Grain smaller than the mesh size falls along the fine material port 13 to be collected outside the equipment as it rotates, and sundries such as straw and leaves larger than the mesh size move to the right as it rotates and finally fall along the discharge hopper 5, thereby completing the preliminary screening of the grain.
[0028] Reference Figure 2-3 The rotating assembly 6 includes a mounting frame 61, the mounting frame 61 is fixedly mounted on the top of the inner part of the housing 1, a bristle brush 7 is rotatably mounted inside the mounting frame 61, and a second motor 62 connected to one end of the bristle brush 7 is fixedly mounted on the top of the inner part of the housing 1;
[0029] Through the above-mentioned structural setting, the second motor 62 is started, and the second motor drives the bristle brush 7 to rotate in the opposite direction to the screen drum 2. The reverse rotation can use the bristles on the brush to poke and clean the mesh on the screen drum 2 to prevent the mesh from being blocked by dust and affecting the falling of grain.
[0030] Reference Figure 1-3 , wherein the filter assembly 11 comprises a filter box 111, the filter box 111 is fixedly mounted on the top of the cover plate 10, a filter plate 112 is movably mounted inside the filter box 111, and a blower 113 located inside the filter box 111 is fixedly mounted on one side of the filter plate 112 away from the vent 12;
[0031] Through the above-mentioned structural setting, the cover plate 10 is moved to cover the feed hopper 4, and the exhaust fan 113 is started at the same time to suck the dust into the filter box 111 through the air vent 12. After being intercepted by the filter plate 112, the dust is collected in the filter box 111 for centralized cleaning.
[0032] Working principle:
[0033] The first step to implement the innovation point:
[0034] Step 1: Put the grains to be processed from the feed hopper 4 into the screen drum 2, and start the first motor 31 at the same time. The first motor 31 drives the screen drum 2 to rotate on the support wheel 32 to screen the grains inside. Grains smaller than the mesh size fall along the fine material port 13 to be collected outside the equipment as the screen drum rotates, and sundries such as straw and leaves larger than the mesh size move to the right as the screen drum rotates and finally fall along the discharge hopper 5, completing the preliminary screening of the grains. While the screen drum 2 rotates, start the second motor 62, and the second motor drives the bristle brush 7 to rotate in the opposite direction to the screen drum 2. The reverse rotation can use the bristles on the brush to poke and clean the mesh on the screen drum 2 to prevent the mesh from being blocked by dust and affecting the falling of the grains.
[0035] Step 2: After a certain amount of grain is poured into the equipment, the cover plate 10 is moved to cover the feed hopper 4, and the exhaust fan 113 is started at the same time to suck the dust into the filter box 111 through the vent 12. After being intercepted by the filter plate 112, the dust is collected in the filter box 111 for centralized cleaning to prevent the dust from floating around.
[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A cylindrical primary cleaning screen, characterized in that: The invention comprises a shell (1), wherein a screen drum (2) is arranged inside the shell (1), wherein a driving mechanism (3) for driving the screen drum (2) to rotate is arranged inside the shell (1), wherein a feed hopper (4) is arranged on the shell (1) and is located on the left side of the screen drum (2), wherein a discharge hopper (5) is arranged on the side of the shell (1) opposite to the feed hopper (4), wherein a rotating assembly (6) is arranged on the top of the shell (1), wherein a bristle brush (7) is arranged on the rotating assembly (6), wherein a reciprocating motor (8) is fixedly installed inside the shell (1), wherein a rubber hammer (9) is fixedly installed at the output end of the reciprocating motor (8), wherein a cover plate (10) is slidably installed on the top of the shell (1), wherein a filter assembly (11) is fixedly installed on the top of the cover plate (10), wherein a vent hole (12) communicating with the inside of the filter assembly (11) is opened on the cover plate (10).
2. A cylindrical primary cleaning screen according to claim 1, characterized in that: A fine material port (13) communicating with the outer shell (1) is fixedly mounted on the bottom of the outer shell (1), and a sealing curtain (14) located at the top of the discharge hopper (5) is fixedly mounted on the outer side of the outer shell (1).
3. A cylindrical primary cleaning screen according to claim 1, characterized in that: The driving mechanism (3) comprises a first motor (31). The first motor (31) is fixedly mounted on the outer side of the housing (1). The output end of the first motor (31) is connected to the screen drum (2). Two pairs of support wheels (32) are symmetrically mounted on the inner bottom end of the housing (1). The two pairs of support wheels (32) are respectively fitted to the left and right sides of the bottom of the screen drum (2).
4. A cylindrical primary cleaning screen according to claim 1, characterized in that: The rotating assembly (6) comprises a mounting frame (61), the mounting frame (61) is fixedly mounted on the top end of the interior of the housing (1), a bristle brush (7) is rotatably mounted inside the mounting frame (61), and a second motor (62) connected to one end of the bristle brush (7) is fixedly mounted on the top end of the interior of the housing (1).
5. A cylindrical primary cleaning screen according to claim 1, characterized in that: The filter assembly (11) comprises a filter box (111), the filter box (111) being fixedly mounted on the top of the cover plate (10), a filter plate (112) being movably mounted inside the filter box (111), and an exhaust fan (113) located inside the filter box (111) being fixedly mounted on a side of the filter plate (112) away from the vent hole (12).