CN114308967B - Dust deposition device for flour production - Google Patents

Dust deposition device for flour production Download PDF

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Publication number
CN114308967B
CN114308967B CN202210022387.5A CN202210022387A CN114308967B CN 114308967 B CN114308967 B CN 114308967B CN 202210022387 A CN202210022387 A CN 202210022387A CN 114308967 B CN114308967 B CN 114308967B
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Prior art keywords
filter element
sides
dust
dust collection
box
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CN114308967A (en
Inventor
赵风雷
田秋侠
荣雪梅
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Jieshou Xiangyun Flour Co ltd
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Jieshou Xiangyun Flour Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust

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  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The invention discloses a dust collecting device for flour production, which comprises a moving device, wherein a dust collecting mechanism is fixedly arranged at the top of the moving device and driven by a motor, an air inlet end and an air outlet end are respectively arranged at two sides of the dust collecting mechanism, a dust collecting end and a dust collecting box are respectively arranged at the air inlet end and the air outlet end of the dust collecting mechanism, a filter element is arranged in the dust collecting box, the filter element can be quickly disassembled and replaced, in the assembling and disassembling processes, a driving rod is lifted upwards, a clamping block rotates anticlockwise along a connecting column, the clamping block is separated from clamping teeth, two sides of the filter element are inserted into a sliding groove and pushed downwards, when the filter element reaches the bottommost part, the driving rod is loosened, a limiting spring is always kept in a tightened state, the tip end of the clamping block is clamped between the two clamping teeth to limit the filter element, and the filter element is convenient to assemble and disassemble.

Description

Dust deposition device for flour production
Technical Field
The invention relates to the technical field of flour production and processing, in particular to a dust deposition device for flour production.
Background
The invention discloses a dust collection device for a flour processing area, as shown in figure 1, and the dust collection device comprises a machine case, wherein the machine case is internally divided into a dust collection cavity and an exhaust cavity, a piston cylinder is vertically arranged in the exhaust cavity, an air cavity is arranged at the rear end of the exhaust cavity, a piston plate is arranged in the air cavity, the bottom end of the piston plate is connected with a piston rod, the tail end of the piston rod extends out of the air cavity and is connected with a transmission rod, a wheel is arranged on the base of the machine case, the transmission rod is connected with a wheel disc of the wheel through a locking bolt, the piston cylinder is communicated with the air cavity through an air pipe, transmission pistons are arranged at the upper end and the lower end of the piston cylinder, transmission piston rods are arranged at the outer ends of the transmission pistons, the outer ends of the transmission piston rods extend out of the piston cylinder and are provided with movable plates, and the dust collection device is driven to synchronously clean dust of an internal dust filter screen while moving, so that the internal blockage situation of the dust collection device is avoided, but the dust filter screen is complex in structural installation and inconvenient to be disassembled, and the dust filter effect is not good after the dust collection device is used for a long time.
Disclosure of Invention
The invention aims to provide a dust deposition device for flour production, which solves the following technical problems:
1. how to make the dust collecting mechanism convenient to disassemble and clean and ensure the dust filtering effect of the collecting mechanism after long-time use;
2. how to enhance the dust carrying capacity of the dust collecting device.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a laying dust device for flour production, includes the telecontrol equipment, the top fixed mounting of telecontrol equipment has dust absorption mechanism, dust absorption mechanism passes through motor drive, dust absorption mechanism both sides are provided with the inlet end respectively and give vent to anger the end, dust absorption mechanism installs dust absorption end and laying dust case respectively at the inlet end with the end of giving vent to anger, the inside of laying dust case is provided with the filter core, the filter core can realize dismantling the change fast.
As a further scheme of the invention: the laying dust box includes the installing frame, the spout has been seted up to the upper and lower both sides of installing frame, the installing frame is semi-enclosed construction, one side of installing frame is provided with the seal groove, sliding connection has the filter core in the installing frame, the both sides of installing frame are provided with latch mechanism, latch mechanism is used for spacing the both sides of filter core, installing frame one side fixedly connected with connecting hopper, one side that the installing frame was kept away from to the connecting hopper is connected with the end of giving vent to anger of dust absorption mechanism.
As a further scheme of the invention: the filter core includes the filter core body, the both sides of filter core body are pegged graft in the spout.
As a further scheme of the invention: the equal fixedly connected with connecting block one in bottom both sides of filter core body, two the outside one side that leans on of connecting block one all is provided with the latch.
As a further scheme of the invention: the mounting groove has been seted up to the both sides of installing frame, all is provided with latch mechanism in the mounting groove, latch mechanism includes the spliced pole, spliced pole fixed connection is in the both sides of mounting groove, it is connected with the joint piece to rotate on the spliced pole, one side that the spliced pole was kept away from to the joint piece sets up to sharp form, and this side joint is in the latch, one side intermediate position fixed mounting of joint piece has spacing spring, the other end fixed mounting of spacing spring has connecting block two, the both sides of connecting block two and the both sides fixed connection of mounting groove, the position fixed mounting that joint piece one side is close to most advanced has the actuating lever, the actuating lever extends to the both sides of installing frame outside.
As a further scheme of the invention: dust absorption mechanism includes circular case one and circular case two, is close to motor one side and sets up to circular case one, through the connecting pipe intercommunication between circular case one and the circular case two, circular case one side sets up to the inlet end, two one sides of circular case set up to the end of giving vent to anger, it is connected with the carousel to rotate in the circular case one, the carousel is driven by the output shaft of motor, fixed mounting has a plurality of flabellums on the carousel, and is a plurality of the flabellum is the annular array along the output shaft and distributes, the carousel sets up the below at the connecting pipe.
As a further scheme of the invention: the side wall of the dust box, which is far away from one side of the connecting hopper, is provided with the air hole, so that a passage is formed inside the device, and the smoothness of air flow is ensured.
As a further scheme of the invention: the lower extreme of dust absorption end is pressed close to ground, and the sectional area of the bottommost of dust absorption end is minimum for the velocity of flow of air current here is the biggest, and the suction of production is the biggest, and dust absorption effect is the best.
The invention has the beneficial effects that:
1. in the process of installation and disassembly, the driving rod is lifted upwards, the clamping block rotates anticlockwise along the connecting column, the clamping block and the clamping teeth are separated, two sides of the filter element are inserted into the sliding grooves and pushed downwards, when the filter element reaches the bottommost part, the driving rod is loosened, the limiting spring is always kept in a tightened state, the tip end of the clamping block is clamped between the two clamping teeth to limit the filter element, and the structure is convenient for installation and disassembly of the filter element;
2. the rotary connection has the carousel in circular case one, and the carousel is by the output shaft drive of motor, fixed mounting has a plurality of flabellums on the carousel, and the carousel setting is in the below of connecting pipe, and when motor during operation, drive carousel fast revolution for the flabellum produces suction in circular case one, and drive air gets into along the dust absorption end, smugglies the filter core that the dust passes through the laying dust case installation secretly, sets up dust absorption mechanism into spiral two parts, does not increase the volume when can guaranteeing the dust absorption mechanism bearing capacity.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a related structure in the prior art;
FIG. 2 is a schematic structural view of the present invention as a whole;
FIG. 3 is a schematic view of the installation of the filter cartridge of the present invention;
FIG. 4 is an enlarged view of the structure of area A of FIG. 3 according to the present invention;
FIG. 5 is a schematic view of the dust box of the present invention;
FIG. 6 is a top plan view of the construction of a cartridge according to the invention;
FIG. 7 is a top view of the dust suction mechanism of the present invention;
FIG. 8 is a schematic view of the internal structure of a round case II according to the present invention;
FIG. 9 is a schematic view showing an internal structure of the round case of the present invention.
In the figure: 1. a motion device; 2. a dust suction end; 3. a motor; 4. a dust suction mechanism; 401. a first round box; 402. a circular box II; 403. a connecting pipe; 404. a turntable; 405. a fan blade; 5. a dust collection box; 501. installing a frame; 502. a sealing groove; 503. a chute; 504. a connecting hopper; 6. a filter element; 601. clamping teeth; 602. a filter element body; 603. a first connecting block; 7. a clamping mechanism; 701. connecting columns; 702. a clamping block; 703. a drive rod; 704. a second connecting block; 705. and a limiting spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 2-9, the invention relates to a dust deposition device for flour production, which comprises a movement device 1, wherein a dust collection mechanism 4 is fixedly mounted at the top of the movement device 1, the dust collection mechanism 4 is driven by a motor 3, an air inlet end and an air outlet end are respectively arranged at two sides of the dust collection mechanism 4, a dust collection end 2 and a dust deposition box 5 are respectively mounted at the air inlet end and the air outlet end of the dust collection mechanism 4, a filter element 6 is arranged in the dust deposition box 5, and the filter element 6 can be rapidly detached and replaced.
Please refer to fig. 5, the dust box 5 includes a mounting frame 501, sliding grooves 503 are formed in the upper and lower sides of the mounting frame 501, the mounting frame 501 is of a semi-closed structure, a sealing groove 502 is formed in one side of the mounting frame 501, a filter element 6 is slidably connected to the mounting frame 501, clamping mechanisms 7 are arranged on the two sides of the mounting frame 501, the clamping mechanisms 7 are used for limiting the two sides of the filter element 6, a connecting hopper 504 is fixedly connected to one side of the mounting frame 501, one side of the connecting hopper 504, which is far away from the mounting frame 501, is connected to an air outlet end of the dust collection mechanism 4, when air flow carries dust to the connecting hopper 504, the cross-sectional area of a pipeline is increased, the air flow rate is reduced, the dust can be fully dispersed in the dust box 5, and the filtering effect of the filter element 6 on the dust is more sufficient.
Referring to fig. 3, the filter element 6 includes a filter element body 602, two sides of the filter element body 602 are inserted into the sliding grooves 503, and the filter element body 602 is slidably connected to the sliding grooves 503, so that the filter element body 602 can be conveniently mounted and dismounted, only the filter element body 602 needs to be drawn out and inserted along the sliding grooves 503, and meanwhile, the sliding grooves 503 can limit the filter element body 602 in the horizontal direction, when the dust suction mechanism 4 generates strong airflow during operation, the sliding grooves 503 can support the filter element body 602, and it is ensured that the filter element body 602 does not shift.
Referring to fig. 6, two sides of the bottom of the filter element body 602 are fixedly connected with first connecting blocks 603, and one side of each of the first connecting blocks 603 near the outside is provided with a latch 601.
Referring to fig. 3, mounting grooves are formed in two sides of the mounting frame 501, and clamping mechanisms 7 are disposed in the mounting grooves, referring to fig. 4, each clamping mechanism 7 includes a connecting column 701, the connecting column 701 is fixedly connected to two sides of the mounting groove, a clamping block 702 is rotatably connected to the connecting column 701, one side of the clamping block 702 away from the connecting column 701 is pointed, the side is clamped in a clamping tooth 601, a limiting spring 705 is fixedly mounted in the middle of one side of the clamping block 702, a second connecting block 704 is fixedly mounted at the other end of the limiting spring 705, two sides of the second connecting block 704 are fixedly connected to two sides of the mounting groove, when the filter element 6 slides downward, the tip portion contact joint piece 702 of latch 601 for latch 601 drives joint piece 702 anticlockwise rotation, and back in the past when the most advanced of latch 601, under spacing spring 705's pulling force effect, the quick clockwise rotation of joint piece 702 makes the most advanced joint of joint piece 702 between two latch 601, joint piece 702 one side is close to most advanced position fixed mounting has drive lever 703, drive lever 703 extends to the both sides of installing frame 501 outside, and when upwards mentioning drive lever 703, joint piece 702 along spliced pole 701 anticlockwise rotation, separation between joint piece 702 and the latch 601 can realize pulling out fast of filter core 6 and insert, and spacing spring 705 keeps tightening state throughout, guarantees the joint effect of joint mechanism 7.
Referring to fig. 7, the dust suction mechanism 4 includes a first circular box 401 and a second circular box 402, one side of the first circular box 401, which is close to the motor 3, is set as a first circular box 401, referring to fig. 8, the first circular box 401 and the second circular box 402 are communicated with each other through a connecting pipe 403, one side of the first circular box 401 is set as an air inlet end, one side of the second circular box 402 is set as an air outlet end, referring to fig. 9, the first circular box 401 is rotatably connected with a turntable 404, the turntable 404 is driven by an output shaft of the motor 3, a plurality of fan blades 405 are fixedly mounted on the turntable 404, the plurality of fan blades 405 are distributed in an annular array along the output shaft, the turntable 404 is disposed below the connecting pipe 403, and when the motor 3 works, the turntable 404 is driven to rotate rapidly, so that the fan blades 405 generate a suction force in the first circular box 401, drive air enters along a dust suction end 2, entrained dust passes through a filter element 6 mounted on the dust collecting box 5, and the dust collecting mechanism 4 is set as two spiral parts, which can ensure that the carrying capacity of the dust collecting mechanism 4 is not increased.
The side wall of the dust box 5 far away from the connecting hopper 504 is provided with an air hole, so that a passage is formed inside the device, and the smoothness of air flow is ensured.
The lower end of the dust collection end 2 is close to the ground, and the sectional area of the bottommost part of the dust collection end 2 is the smallest, so that the flow velocity of the airflow at the position is the largest, the generated suction force is the largest, and the dust collection effect is the best.
The use steps of the equipment are as follows:
the filter core limiting method comprises the following steps that firstly, a driving rod 703 is pulled outwards, a clamping block 702 rotates anticlockwise along a connecting column 701, the clamping block 702 is separated from clamping teeth 601, two sides of a filter core 6 are inserted into a sliding groove 503 and pushed downwards, when the filter core 6 reaches the bottommost part, the driving rod 703 is loosened, a limiting spring 705 is kept in a tightened state all the time, the tip end of the clamping block 702 is clamped between the two clamping teeth 601, and the filter core 6 is limited;
step two, starting the motor 3 to work, and rapidly rotating the turntable 404 to enable the fan blades 405 to generate suction in the first circular box 401, driving air to enter along the dust suction end 2, and carrying dust to pass through the filter element 6 arranged in the dust collection box 5 to finish dust collection;
and step three, the moving device 1 can drive the dust collection mechanism 4 to move, and the cleaning of the workshop floor is completed.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims (2)

1. The dust deposition device for flour production comprises a moving device (1) and is characterized in that a dust collection mechanism (4) is fixedly mounted at the top of the moving device (1), the dust collection mechanism (4) is driven by a motor (3), an air inlet end and an air outlet end are respectively arranged on two sides of the dust collection mechanism (4), a dust collection end (2) and a dust deposition box (5) are respectively mounted at the air inlet end and the air outlet end of the dust collection mechanism (4), a filter element (6) is arranged in the dust deposition box (5), and the filter element (6) can be rapidly detached and replaced;
the dust collection box (5) comprises an installation frame (501), sliding grooves (503) are formed in the upper side and the lower side of the installation frame (501), the installation frame (501) is of a semi-closed structure, a sealing groove (502) is formed in one side of the installation frame (501), a filter element (6) is connected in the installation frame (501) in a sliding mode, clamping mechanisms (7) are arranged on the two sides of the installation frame (501), the clamping mechanisms (7) are used for limiting the two sides of the filter element (6), a connecting hopper (504) is fixedly connected to one side of the installation frame (501), and one side, far away from the installation frame (501), of the connecting hopper (504) is connected with an air outlet end of a dust collection mechanism (4);
the dust collection mechanism (4) comprises a first round box (401) and a second round box (402), one side of the first round box (401) close to the motor (3) is arranged, the first round box (401) is communicated with the second round box (402) through a connecting pipe (403), one side of the first round box (401) is arranged to be an air inlet end, one side of the second round box (402) is arranged to be an air outlet end, a rotating disc (404) is rotatably connected in the first round box (401), the rotating disc (404) is driven by an output shaft of the motor (3), a plurality of fan blades (405) are fixedly installed on the rotating disc (404), the fan blades (405) are distributed in an annular array along the output shaft, and the rotating disc (404) is arranged below the connecting pipe (403);
an air hole is formed in the side wall of the dust collection box (5) far away from one side of the connecting hopper (504), so that a passage is formed inside the device;
the filter element (6) comprises a filter element body (602), and two sides of the filter element body (602) are inserted into the sliding grooves (503);
the two sides of the bottom of the filter element body (602) are fixedly connected with first connecting blocks (603), and clamping teeth (601) are arranged on one sides, close to the outside, of the first connecting blocks (603);
mounting groove has been seted up to the both sides of installing frame (501), all is provided with joint mechanism (7) in the mounting groove, joint mechanism (7) are including spliced pole (701), spliced pole (701) fixed connection is in the both sides of mounting groove, it is connected with joint piece (702) to rotate on spliced pole (701), one side that spliced pole (701) were kept away from in joint piece (702) sets up to the point form, and this side joint is in latch (601), one side intermediate position fixed mounting of joint piece (702) has spacing spring (705), the one end fixed mounting that joint piece (702) were kept away from in spacing spring (705) has two (704) of connecting block, the both sides of two (704) of connecting block and the both sides fixed connection of mounting groove, joint piece (702) one side is close to most advanced position fixed mounting has actuating lever (703), actuating lever (703) extend to the both sides of installing frame (501) outside.
2. A dust-collecting device for flour production according to claim 1, wherein the lower end of the dust-collecting end (2) is close to the ground.
CN202210022387.5A 2022-01-10 2022-01-10 Dust deposition device for flour production Active CN114308967B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210022387.5A CN114308967B (en) 2022-01-10 2022-01-10 Dust deposition device for flour production

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Application Number Priority Date Filing Date Title
CN202210022387.5A CN114308967B (en) 2022-01-10 2022-01-10 Dust deposition device for flour production

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CN114308967A CN114308967A (en) 2022-04-12
CN114308967B true CN114308967B (en) 2023-04-18

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Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101797561B (en) * 2010-03-04 2012-10-17 宁海鑫城汽车配件有限公司 Separation device of plastic particles and dust by negative-pressure air power
CN102128174A (en) * 2011-04-02 2011-07-20 山东大学 Spiral-flow type blockage-free energy-efficient centrifugal fan
JP6748842B2 (en) * 2015-05-08 2020-09-02 パナソニックIpマネジメント株式会社 Electric blower air guide, electric blower, and vacuum cleaner
CN210656270U (en) * 2019-10-04 2020-06-02 浙江艾孚尔环境科技有限公司 Filter core convenient to change based on EDI module
CN211706218U (en) * 2019-12-13 2020-10-20 徐州天蓝臭氧设备有限公司 Dust-containing industrial waste gas filter
CN213159915U (en) * 2020-08-19 2021-05-11 天津硕纳塑料机械科技有限公司 Dust collector for injection molding equipment
CN213790430U (en) * 2020-09-02 2021-07-27 苏州百创达环保科技有限公司 Air purifier dust cleaning device
CN214551862U (en) * 2021-03-17 2021-11-02 宿迁凯达环保设备制造有限公司 Mining plant dust removal purifier for environmental protection equipment
CN215305436U (en) * 2021-04-29 2021-12-28 南京同昌环保科技有限公司 Dust-collecting part of domestic dust collector convenient for replacement and cleaning
CN215842186U (en) * 2021-09-30 2022-02-18 湖北科瑞半导体技术有限公司 Dust extraction that semiconductor laser marking used

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