A powder screening and dust removing device

Abstract

The utility model relates to the technical field of screening powder, and disclose a kind of screening powder dust removal device, including shell, the top of the shell is fixedly connected with dust suction duct, and the bottom of the shell is provided with dust collection structure.The screening powder dust removal device, by setting the clamping groove of card block adaptation and the movable connection structure of dust collection box and shell, provide accurate installation positioning for dust collection box, prevent dust collection groove and dust guide channel misplacement dust leakage, while greatly shorten dismounting time, by setting the connecting rod fixed on shell, the drainage plate connected with connecting rod and the guide vane inside drainage plate, make drainage plate and shell form the dust guide channel of uniform width, intercept diffusion dust and guide airflow directional flow, avoid airflow turbulence and dust retention, improve dust collection rate, by setting the water outlet in dust collection groove and the flange cover of supporting, can provide water washing cleaning channel for flour, starch and other sticky dust, avoid artificial scraping abrasion dust collection groove.

Description

Technical Field

[0001] This utility model relates to the field of powder screening technology, specifically to a powder screening and dust removal device. Background Technology

[0002] In the production of powder materials screening in industries such as chemicals, food, and building materials, the screening equipment is prone to generating a large amount of dust during operation. If the dust is not collected in time, it will not only pollute the workshop environment and endanger the health of operators, but may also cause material waste.

[0003] Currently available dust collection devices have significant shortcomings in dust collection and device maintenance. Traditional dust collection components are mostly fixed with bolts, requiring tools such as wrenches for disassembly and assembly. Each dust cleaning is time-consuming, and frequent disassembly and assembly can easily lead to thread wear, affecting the sealing performance. Therefore, a dust collection device is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a dust collection device that features convenient assembly and disassembly of dust collection components, tool-free maintenance, high efficiency, and low component wear. It solves the problems of traditional devices, such as cumbersome and time-consuming assembly and disassembly of dust collection boxes with bolts, low dust collection rate and easy leakage due to turbulent airflow, difficulty in cleaning sticky dust and easy wear of components, and poor adaptability that makes it difficult to meet the needs of multiple working conditions.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a dust removal device for screening powder, comprising a housing, wherein a dust suction pipe is fixedly connected to the top of the housing, and a dust collection structure is provided at the bottom of the housing;

[0006] The dust collection structure includes a dust collection box, a snap-fit ​​box, a spring, a pull rod, a locking block, a dust collection trough, a water outlet, and a flange cover. The snap-fit ​​box is fixedly connected to the outside of the dust collection box, and a spring is fixedly connected to the inner wall of the snap-fit ​​box. A locking block is fixedly connected to one end of the spring, and a pull rod is fixedly connected to the locking block.

[0007] Preferably, the pull rod is fixedly connected to the spring and the locking block, with one end of the spring fixedly connected to the buckle box and the other end fixedly connected to the locking block.

[0008] Preferably, the outer shell has a slot on its exterior, the slot is adapted to the card block, and the dust collection box and the outer shell are movably connected to the card block through the slot.

[0009] Preferably, a connecting rod is fixedly connected to the outside of the outer shell, and a diversion plate is fixedly connected to the connecting rod. A dust guiding channel is formed between the diversion plate and the outer shell, and a guide plate is provided inside the diversion plate.

[0010] Preferably, the top of the dust collection box is provided with a dust collection groove, which is connected to the dust guiding channel.

[0011] Preferably, the dust collection tank has a water outlet hole inside, and a flange cover is provided inside the water outlet hole.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] This dust collection device employs a spring-driven pull rod fixed to a locking block, along with springs connecting the locking box and the locking block at both ends, creating an elastic locking drive structure. This structure allows for tool-free quick assembly and disassembly of the dust collection box, solving the problem of cumbersome assembly and disassembly in traditional fixed structures. The spring's elastic return characteristic ensures a tight fit between the locking block and the outer casing's groove, preventing the dust collection box from loosening during device vibration and guaranteeing dust collection sealing. The locking groove adapted to the locking block and the movable connection structure between the dust collection box and the outer casing provide precise installation positioning for the dust collection box, preventing misalignment and dust leakage between the dust collection trough and the dust guide channel. Simultaneously, it significantly reduces assembly and disassembly time, improves maintenance efficiency, avoids thread wear caused by frequent bolt removal, and extends the device's service life. The device also features a connecting rod fixed to the outer casing, and... The connecting rod connects to the guide plate and the guide plate inside the guide plate, forming a uniformly wide dust guiding channel between the guide plate and the outer shell. This intercepts and diffuses dust, guides the airflow in a directional manner, avoids airflow turbulence and dust retention, improves dust collection efficiency, and reduces the negative pressure load on the suction pipe, thus reducing energy consumption. By setting a dust collection trough connected to the dust guiding channel, a closed-loop dust collection path is constructed, ensuring that all dust-laden airflow enters the dust collection trough without any missed areas. By setting a water outlet and matching flange cover in the dust collection trough, a water washing and cleaning channel can be provided for sticky dust such as flour and starch, avoiding manual scraping and wear of the dust collection trough. It can also seal and dry the dust, preventing leakage, and avoid moisture residue corrosion, extending the service life of the dust collection box and expanding the device's adaptability to different types of dust. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a front sectional view of the present invention;

[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 This is a three-dimensional diagram of the dust collection structure of this utility model.

[0018] In the diagram: 1. Outer shell; 101. Slot; 2. Suction pipe; 4. Guide plate; 5. Connecting rod; 6. Drain plate; 7. Dust collection structure; 701. Dust collection box; 702. Clip box; 703. Spring; 704. Pull rod; 705. Locking block; 706. Dust collection trough; 707. Water outlet; 708. Flange cover. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 The dust removal device for screening powder in this embodiment includes a housing 1, a dust suction pipe 2 fixedly connected to the top of the housing 1, and a dust collection structure 7 provided at the bottom of the housing 1.

[0021] The dust collection structure 7 includes a dust collection box 701, a snap-fit ​​box 702, a spring 703, a pull rod 704, a locking block 705, a dust collection trough 706, a water outlet 707, and a flange cover 708. The snap-fit ​​box 702 is fixedly connected to the outside of the dust collection box 701. The spring 703 is fixedly connected to the inner wall of the snap-fit ​​box 702. The locking block 705 is fixedly connected to one end of the spring 703. The pull rod 704 is fixedly connected to the locking block 705.

[0022] The pull rod 704 passes through the spring 703 and is fixedly connected to the locking block 705. One end of the spring 703 is fixedly connected to the buckle box 702, and the other end is fixedly connected to the locking block 705. When the dust collection box 701 is installed, the natural elasticity of the spring 703 can push the locking block 705 to automatically insert into the slot 101 of the outer shell 1, realizing the quick pre-fixation of the dust collection box 701 and the outer shell 1 without manual alignment and engagement. When disassembling and cleaning the dust collection box 701, pulling the pull rod 704 will drive the locking block 705 to compress the spring 703 and disengage from the slot 101. No tools are required throughout the process, solving the problem of cumbersome disassembly and assembly of traditional fixing structures. At the same time, the elastic return property of the spring 703 can ensure that the locking block 705 always fits against the slot 101, preventing the dust collection box 701 from loosening when the device vibrates and ensuring the dust collection seal.

[0023] The outer shell 1 has a slot 101 on its exterior, which is adapted to the locking block 705. The dust collection box 701 and the outer shell 1 are movably connected through the slot 101 and the locking block 705. On the one hand, the matching structure of the slot 101 and the locking block 705 provides precise installation positioning for the dust collection box 701, preventing the dust collection groove 706 from being misaligned with the dust guide channel and causing dust leakage due to installation misalignment. On the other hand, the movable connection method allows operators to quickly disassemble the dust collection box 701 to clean dust or perform maintenance. Compared with traditional bolt fixing, no tools are needed, which greatly improves maintenance efficiency and avoids thread wear caused by frequent bolt removal, thus extending the service life of the device.

[0024] A connecting rod 5 is fixedly connected to the outside of the outer casing 1. A guide plate 6 is fixedly connected to the connecting rod 5. A dust guiding channel is formed between the guide plate 6 and the outer casing 1. A guide plate 4 is set inside the guide plate 6. The connecting rod 5 ensures that the guide plate 6 and the outer casing 1 maintain a stable distance, forming a dust guiding channel with uniform width, avoiding airflow turbulence and dust accumulation caused by uneven channel width. The guide plate 6 can intercept the dust diffused during sieving and guide it into the channel, reducing the dust from escaping into the surrounding environment. The guide plate 4 further guides the airflow in the channel in a direction, so that the dust-laden airflow smoothly enters the dust collection trough 706 of the dust collection box 701 along a preset path, avoiding dust retention caused by eddies.

[0025] The top of the dust collection box 701 has a dust collection trough 706, which is connected to the dust guiding channel. The dust guiding channel intercepts and guides the dust-laden airflow to the dust collection trough 706. The groove structure of the dust collection trough 706 can temporarily store dust and prevent dust from falling directly. The connected design ensures that all the dust carried by the airflow enters the dust collection trough 706. At the same time, the dust collection trough 706 can reduce the frequency of cleaning and improve the continuous working capacity of the device, which is especially suitable for long-term batch powder screening scenarios.

[0026] The dust collection trough 706 has a water outlet 707 inside, and a flange cover 708 is installed inside the water outlet 707. For sticky dust such as flour and starch, it is easy to clump on the inner wall of the dust collection trough 706 during cleaning. At this time, the flange cover 708 can be opened to inject clean water into the dust collection trough 706, and water washing can be achieved through the water outlet 707 to wash away the clumps of dust and avoid wear on the inner wall of the dust collection trough 706 caused by manual scraping. For dry dust, the flange cover 708 can seal the water outlet 707 to prevent dust leakage. In addition, the sealing structure of the flange cover 708 can also prevent the dust collection trough 706 from rusting due to residual moisture during cleaning, extend the service life of the dust collection box 701, and enable the device to handle both dry dust and sticky dust, thus expanding its application range.

[0027] When implementing this procedure, please follow these steps:

[0028] 1) First, confirm that the slot 101 of the outer shell 1 is not deformed, the spring 703 of the dust collection structure 7 is elastic and normal, and the block 705 is properly matched with the slot 101 without jamming. At the same time, close the flange cover 708 in the dust collection tank 706 to ensure that the water outlet 707 is sealed to prevent subsequent dust leakage; 2) Then, align the dust collection box 701 with the installation position at the bottom of the outer shell 1, push the dust collection box 701 so that the block 705 in the buckle box 702 automatically embeds into the slot 101 of the outer shell 1 under the elastic force of the spring 703, and complete the fixing of the dust collection box 701. Then, adjust the overall placement of the device according to the position of the inlet / outlet of the dust sieving equipment so that the dust guiding channel formed by the guide plate 6 and the outer shell 1 is directly facing the dust generation area; 3) Turn on the negative pressure equipment connected to the dust collection pipe 2, such as the exhaust fan. At the same time, depending on the characteristics of the dust to be screened, if it is dry dust, keep the default angle of the guide plate 4; if it is sticky dust, fine-tune the angle of the guide plate 4 to enhance airflow guidance, ensuring that the dust-laden airflow can enter the dust guiding channel along the guide plate 6 and finally converge into the dust collection tank 706 of the dust collection box 701; 4) Finally, when the dust collection tank 706 is almost full, turn off the negative pressure equipment, pull the pull rods 704 on both sides of the dust collection box 701, drive the locking block 705 to compress the spring 703 to disengage from the slot 101, take out the dust collection box 701 and pour out the dust. If cleaning sticky dust, you can open the flange cover 708 and inject clean water into the dust collection tank 706 to rinse it. The sewage will be discharged from the water outlet 707. After cleaning, reinstall the dust collection box 701 and prepare for the next round of use.

[0029] In summary, this dust collection device, by setting a pull rod 704 that passes through the spring 703 and is fixed to the locking block 705, and a spring 703 that connects the locking box 702 and the locking block 705 at both ends respectively, constructs an elastic locking drive structure. This not only enables quick disassembly and assembly of the dust collection box 701 without tools, solving the problem of cumbersome disassembly and assembly of traditional fixed structures, but also ensures that the locking block 705 fits tightly against the locking groove 101 of the outer shell 1 by utilizing the elastic return characteristics of the spring 703, preventing the dust collection box 701 from loosening when the device vibrates, thus ensuring dust collection sealing. By setting the locking groove 101 that matches the locking block 705 and the movable connection structure between the dust collection box 701 and the outer shell 1, precise installation positioning of the dust collection box 701 is provided, preventing dust leakage due to misalignment between the dust collection groove 706 and the dust guiding channel. At the same time, it significantly shortens disassembly and assembly time, improves maintenance efficiency, avoids thread wear caused by frequent bolt disassembly, and extends the service life of the device. The connecting rod 5 fixed to the outer shell 1, the guide plate 6 connected to the connecting rod 5, and the guide plate 4 inside the guide plate 6 form a uniformly wide dust guiding channel between the guide plate 6 and the outer shell 1. This intercepts and diffuses dust and guides the airflow in a directional manner, avoiding airflow turbulence and dust retention, thus improving the dust collection rate. At the same time, it reduces the negative pressure load of the dust collection pipe 2 and reduces energy consumption. By setting a dust collection trough 706 connected to the dust guiding channel, a closed-loop dust collection path is constructed, ensuring that all dust-laden airflow enters the dust collection trough 706 without any missed areas. By setting a water outlet 707 and a matching flange cover 708 in the dust collection trough 706, a water washing and cleaning channel can be provided for sticky dust such as flour and starch, avoiding manual scraping and wear of the dust collection trough 706. It can also seal and dry the dust to prevent leakage, while avoiding moisture residue and corrosion, extending the service life of the dust collection box 701, and expanding the device's adaptability to different types of dust.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust removal device for screening powder, comprising a housing (1), characterized in that, The top of the outer shell (1) is fixedly connected to a dust suction pipe (2), and the bottom of the outer shell (1) is provided with a dust collection structure (7). The dust collection structure (7) includes a dust collection box (701), a snap-fit ​​box (702), a spring (703), a pull rod (704), a locking block (705), a dust collection trough (706), a water outlet (707), and a flange cover (708). The snap-fit ​​box (702) is fixedly connected to the outside of the dust collection box (701). The spring (703) is fixedly connected to the inner wall of the snap-fit ​​box (702). The locking block (705) is fixedly connected to one end of the spring (703). The pull rod (704) is fixedly connected to the locking block (705).

2. The dust removal device for screening powder according to claim 1, characterized in that, The pull rod (704) passes through the spring (703) and is fixedly connected to the locking block (705). One end of the spring (703) is fixedly connected to the buckle box (702), and the other end is fixedly connected to the locking block (705).

3. The dust removal device for screening powder according to claim 1, characterized in that, The outer shell (1) has a slot (101) on its exterior. The slot (101) is adapted to the card block (705). The dust collection box (701) and the outer shell (1) are movably connected to the card block (705) through the slot (101).

4. The dust removal device for screening powder according to claim 1, characterized in that, A connecting rod (5) is fixedly connected to the outside of the outer shell (1), and a diversion plate (6) is fixedly connected to the connecting rod (5). A dust guiding channel is formed between the diversion plate (6) and the outer shell (1), and a guide plate (4) is provided inside the diversion plate (6).

5. The dust removal device for screening powder according to claim 4, characterized in that, The top of the dust collection box (701) is provided with a dust collection groove (706), which is connected to the dust guiding channel.

6. The dust removal device for screening powder according to claim 1, characterized in that, The dust collection tank (706) has a water outlet (707) inside, and a flange cover (708) is provided inside the water outlet (707).

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