Dust removal device

Abstract

The application relates to a dust removal device. The dust removal device comprises a casing, a filter chamber, a spraying chamber and an air exhaust component, the casing is provided with an air inlet and an air outlet; the filter chamber is arranged in the casing and is communicated with the air inlet, a filter assembly is arranged in the filter chamber, the filter assembly is used for performing at least two-stage filtration on dust-removal air entering the filter chamber from the air inlet; the spraying chamber is arranged in the casing and is located above the filter chamber, the bottom of the spraying chamber is communicated with the top of the filter chamber; and the air exhaust component is arranged close to the air outlet and is used for sucking air in the casing to generate negative pressure in the casing. The dust removal device can efficiently and conveniently remove dust from external dust-removal air, reduces the cleaning difficulty, and significantly improves the cleaning efficiency. Moreover, the filter assembly can perform at least two-stage filtration on the dust-removal air entering the filter chamber from the air inlet, enhances the filtration and dust removal effect, and improves the dust removal and cleaning effect.

Description

Technical Field

[0001] This application relates to the field of dust removal technology, and in particular to dust removal devices. Background Technology

[0002] The high-temperature Daqu (a type of starter culture) production process uses wheat as the main raw material and rice straw as an auxiliary material. It involves a high-temperature stacking fermentation process, during which microorganisms grow naturally and undergo Maillard reactions at high temperatures, forming a saccharifying and fermenting agent rich in multiple microbial communities and enzymes, possessing alcohol-producing and aroma-enhancing functions. After fermentation, the Daqu undergoes a period of stacking and storage, allowing the microbial community to naturally optimize and the Daqu flavor to stabilize. The Daqu is then pulverized into powder for use in winemaking.

[0003] In the high-temperature Daqu production process, raw materials and auxiliary materials need to go through multiple stages such as Daqu installation, first turning of Daqu, second turning of Daqu, Daqu dismantling, dry Daqu storage, and Daqu block crushing. A large amount of dust is generated in the above processes, and dry straw, debris, dust and other materials are mixed together, making cleaning difficult, and manual cleaning is inefficient and ineffective. Utility Model Content

[0004] Therefore, it is necessary to provide a dust removal device to address the problems of difficult cleaning, low cleaning efficiency, and poor cleaning effect of dust generated in the high-temperature Daqu production process.

[0005] A dust removal device, comprising:

[0006] The casing is equipped with an air inlet and an air outlet;

[0007] A filter chamber is disposed inside the housing and is connected to the air inlet. A filter assembly is disposed inside the filter chamber and is used to perform at least two stages of filtration on the air to be filtered from the air inlet into the filter chamber.

[0008] A blow chamber is disposed inside the housing and located above the filter chamber, with the bottom of the blow chamber communicating with the top of the filter chamber;

[0009] An exhaust component, located near the exhaust port, is used to draw air from inside the casing and create negative pressure inside the casing.

[0010] In one embodiment, a first-stage filter is also included, which is disposed near the air inlet and is used to filter out impurities.

[0011] In one embodiment, a first dust hood is further included, which is detachably connected to the air inlet, and the first filter element is disposed on the first dust hood.

[0012] In one embodiment, a suction pipe is also included, which is detachably connected to the air inlet, and the first-stage filter is disposed on the suction pipe.

[0013] In one embodiment, the filtration assembly includes a second-stage filter and a third-stage filter, the second-stage filter being sleeved on the outside of the third-stage filter, the second-stage filter being used to filter out large dust particles, and the third-stage filter being used to filter out small dust particles.

[0014] In one embodiment, the bottom of the blowing chamber is provided with a blowing hole, the top of the filter assembly is connected to the bottom of the blowing chamber, and the projection of the blowing hole onto the filter chamber is placed inside the filter assembly.

[0015] In one embodiment, the blow chamber is provided with a nozzle that sprays and washes the filter assembly through the blow hole; or the blow chamber has an openable / closeable blow chamber door that is sealed at the contact point with the housing, and the blow chamber is used to allow an external spray gun to enter and spray and wash the filter assembly through the blow hole.

[0016] In one embodiment, a dust discharge container is detachably provided at the bottom of the filter chamber for collecting dust falling from the filter assembly.

[0017] In one embodiment, an exhaust chamber is further included, disposed in the housing and located above the spray chamber, the exhaust chamber communicating with the spray chamber, and the exhaust component disposed in the exhaust chamber.

[0018] In one embodiment, an explosion venting structure is also included, which is disposed in the housing.

[0019] The aforementioned dust removal device includes a housing, a filter chamber, a pulse-jet chamber, and an exhaust system. The filter chamber houses filter components that perform at least two stages of filtration on the air entering from the inlet. The exhaust system creates negative pressure within the housing, drawing in external air from the inlet. The filtered air is then efficiently and conveniently removed from the air, reducing cleaning difficulty and significantly improving cleaning efficiency. Furthermore, the pulse-jet chamber facilitates easy cleaning of the filter components, extending their lifespan and further ensuring effective dust removal. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the dust removal device of this application.

[0021] Figure 2 This is a front view of the dust removal device of this application.

[0022] Figure 3 This is a side view of the dust removal device of this application.

[0023] Figure 4 This is a top view of the dust removal device of this application.

[0024] Figure 5 This is a schematic diagram of the filter assembly in the dust removal device of this application.

[0025] Figure 6 This is a schematic diagram showing the connection between the air inlet and the suction pipe of the dust removal device in this application.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Housing; 101. Air inlet;

[0028] 2. Filter chamber; 201. Filter chamber door;

[0029] 3. Blowing chamber; 301. Blowing hole; 302. Blowing chamber door;

[0030] 4. Exhaust system;

[0031] 5. First-stage filter element;

[0032] 6. First dust cover;

[0033] 7. Second-stage filter element;

[0034] 8. Third-stage filter element;

[0035] 9. Ash discharge container;

[0036] 10. Exhaust room; 1001. Exhaust room door;

[0037] 11. Vacuum hose; 1101. Second vacuum hood;

[0038] 12. Explosion-proof disc;

[0039] 13. Handle;

[0040] 14. Swivel casters;

[0041] 15. Grating;

[0042] 16. Fan cover. Detailed Implementation

[0043] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0044] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0045] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0047] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0048] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0049] The high-temperature Daqu (a type of starter culture) production process uses wheat as the main raw material and rice straw as an auxiliary material. It involves several steps, including placing the starter, first turning, second turning, breaking up the starter, storing the dry starter, and crushing the starter blocks before it can be used for brewing. During the high-temperature fermentation process, some wheat is lost, generating a large amount of dust. This dust, along with the dry straw, debris, and other particles, makes cleaning difficult, inefficient, and ineffective by manual methods. Furthermore, the Daqu crusher has a large surface area, is tall, and has an irregular structure. The starter powder is small in diameter, lightweight, and highly viscous, easily adhering to the crusher's surface, resulting in numerous unsanitary areas that are difficult to clean with ordinary tools, and are time-consuming and labor-intensive. In addition, the equipment room is an explosive-prone area, posing certain safety hazards during the cleaning of the starter powder.

[0050] Based on this, this application proposes a dust removal device that is highly efficient, effective, easy to operate, and safe.

[0051] See Figures 1-6 As shown, an embodiment of this application provides a dust removal device, including: a housing 1, a filter chamber 2, a blower chamber 3, and an exhaust component 4. The housing 1 is provided with an air inlet 101 and an air outlet. The filter chamber 2 is disposed inside the housing 1 and is connected to the air inlet 101. A filter assembly is disposed inside the filter chamber 2 and is used to perform at least two stages of filtration on the air to be removed entering the filter chamber 2 from the air inlet 101. The blower chamber 3 is disposed inside the housing 1 and located above the filter chamber 2, and the bottom of the blower chamber 3 is connected to the top of the filter chamber 2. The exhaust component 4 is disposed near the exhaust outlet and is used to draw air from inside the housing 1 to create a negative pressure inside the housing 1.

[0052] This dust removal device uses the exhaust component 4 to create negative pressure inside the casing 1. External air to be cleaned enters the device through the air inlet 101 and is filtered by the filter assembly, achieving efficient and convenient dust removal. This reduces cleaning difficulty while significantly improving cleaning efficiency. Furthermore, the filter assembly performs at least two stages of filtration on the air entering the filter chamber 2 from the air inlet 101, enhancing the filtration and dust removal effect and thus improving the cleaning performance. In addition, the inclusion of a blower chamber 3 facilitates easy cleaning of the filter assembly, extending its service life and further ensuring effective dust removal. Moreover, the negative pressure method effectively prevents secondary dust generation.

[0053] The dust removal device of this application can be used in equipment workshops, such as koji-making and fermentation workshops, to perform convenient and effective dust removal operations on the equipment workshop and the mechanical equipment within it.

[0054] The dust removal device includes a housing 1, which is the main structure of the dust removal device and has sufficient structural strength to accommodate and house other structures of the dust removal device. In one embodiment, the housing 1 has a roughly rectangular parallelepiped shape. To facilitate the movement of the entire dust removal device, omnidirectional casters 14 with brakes are provided at the four corners of the bottom of the housing 1, and two handles 13 are provided on the outer wall of the housing 1, respectively located on opposite side walls of the housing 1, to facilitate pushing and pulling the dust removal device to the desired position and improve the flexibility of the dust removal device in use. Optionally, the omnidirectional casters 14 have a diameter of 125 mm, and the wheel body is made of polyurethane with an iron core, which has the characteristics of being quiet, wear-resistant, and non-slip, and the load-bearing capacity of a single caster is 400 kg.

[0055] The housing 1 is provided with an air inlet 101 and an air outlet. Dust-laden air from the external space (such as an equipment workshop) enters the housing 1 through the air inlet 101 for filtration and dust removal. In one embodiment, the air inlet 101 is located on the side wall of the housing 1, so that the air inlet 101 faces the external space, improving air intake efficiency. The air outlet is used to discharge the filtered and dust-removed clean air. In one embodiment, the air outlet is located at the top of the housing 1. Dust-laden air from the outside enters the dust removal device through the air inlet 101 for filtration and dust removal, and the filtered and dust-removed clean air exits the dust removal device from the air outlet and re-enters the external space.

[0056] A filter chamber 2 is disposed within the housing 1. The filter chamber 2 has a certain volume and contains a filter assembly. In one embodiment, the filter chamber 2 is located at the lower part of the housing 1 to optimize the internal structure of the housing 1. The filter chamber 2 is connected to the air inlet 101. Dust-laden air from the outside enters the filter chamber 2 through the air inlet 101. The filter assembly is disposed within the filter chamber 2 and performs at least two stages of filtration on the dust-laden air entering the filter chamber 2 from the air inlet 101, thereby achieving graded filtration of dust.

[0057] In one embodiment, the filter chamber 2 has a filter chamber door 201, one side of which is hinged to the housing 1. The filter chamber door 201 can be opened or closed relative to the housing 1. When the filter chamber door 201 is closed, the contact position between the filter chamber door 201 and the housing 1 is sealed to ensure the normal operation of the dust removal device. When the filter chamber door 201 is open, relevant operations can be performed on the filter chamber 2, such as cleaning the inner wall of the filter chamber 2 or replacing the filter components.

[0058] The blowing chamber 3 is located inside the housing 1 and above the filter chamber 2, that is, the blowing chamber 3 is located near the middle of the housing 1. The bottom of the blowing chamber 3 is connected to the top of the filter chamber 2. The blowing chamber 3 can spray and wash the filter components in the filter chamber 2 to clean the filter components.

[0059] In one embodiment, the blowing chamber 3 has a blowing chamber door 302, one side of which is hinged to the housing 1. The blowing chamber door 302 can be opened or closed relative to the housing 1. When the blowing chamber door 302 is closed, the contact position between the blowing chamber door 302 and the housing 1 is sealed to ensure the normal operation of the dust removal device. When the blowing chamber door 302 is open, relevant operations can be performed on the inside of the blowing chamber 3, such as cleaning the inner wall of the blowing chamber 3 or placing a spray gun into the blowing chamber 3 to clean the filter components of the filter chamber 2.

[0060] The exhaust component 4 is located near the exhaust port and is used to draw air from inside the housing 1, creating a negative pressure inside the housing 1. In one embodiment, the exhaust component 4 is a negative pressure fan with a power of 5.5 kW and a speed of 2900 r / min. Since the exhaust port is located at the top of the housing 1, the exhaust component 4 is also located at the top of the housing 1. When the exhaust component 4 is working, the air inside the housing 1 is drawn out from bottom to top, creating a negative pressure inside the housing 1. The air to be cleaned from the outside space enters the housing 1 through the air inlet 101. After the air is filtered by the filter assembly, the clean air is discharged from the exhaust port and re-enters the outside space.

[0061] In one embodiment of this application, the dust removal device further includes a first-stage filter element 5, which is disposed near the air inlet 101 and is used to filter out impurities.

[0062] The dust removal device also includes a first-stage filter element 5, which is located near the air inlet 101. The first-stage filter element 5 can perform first-stage filtration on the air to be removed entering the air inlet 101. The first-stage filter element 5 is used to filter out impurities, specifically, to filter out larger impurities, such as straw, etc., which can prevent larger impurities from entering the interior of the dust removal device, realize graded filtration of the air to be removed, and avoid larger impurities from affecting the filtration effect and service life of the filter components.

[0063] In one embodiment, the first-stage filter element 5 is a grid filter sheet.

[0064] In one embodiment of this application, the dust removal device further includes a first dust suction hood 6, which is detachably connected to the air inlet 101, and a first-stage filter element 5 is disposed on the first dust suction hood 6.

[0065] See Figure 1 and Figure 3 As shown, the dust removal device also includes a first dust suction hood 6, which has an air inlet and an air outlet. The cross-sectional area of ​​the first dust suction hood 6 gradually decreases from its air inlet to its air outlet, forming a funnel-shaped structure. This shape of the first dust suction hood 6 is conducive to gathering and collecting the air to be removed from the external space, accelerating the rate at which the air to be removed enters the dust removal device, and improving the dust removal efficiency.

[0066] The air outlet of the first dust hood 6 is detachably connected to the air inlet 101. When a large space needs to be cleaned, the first dust hood 6 is installed with the air inlet 101 for subsequent dust removal operations.

[0067] In one embodiment, the first-stage filter 5 is disposed on the first dust collection hood 6. Specifically, the first-stage filter 5 is disposed near the air outlet of the first dust collection hood 6, and the first-stage filter 5 can filter out and prevent larger impurities from entering the dust collection device. In one embodiment, the first-stage filter 5 coincides with the horizontal center line of the first dust collection hood 6.

[0068] In one embodiment of this application, the filter assembly includes a second-stage filter element 7 and a third-stage filter element 8. The second-stage filter element 7 is sleeved on the outside of the third-stage filter element 8. The second-stage filter element 7 is used to filter out large dust particles, and the third-stage filter element 8 is used to filter out small dust particles.

[0069] The dust removal device of this embodiment can perform three-stage filtration of the air to be removed. The first-stage filter element 5 can perform first-stage filtration of the air to be removed entering the air inlet 101, and the filter assembly can further perform second-stage and third-stage filtration of the air to be removed. In one embodiment, the filter assembly includes a second-stage filter element 7 and a third-stage filter element 8. The second-stage filter element 7 is used for second-stage filtration of the air to be removed, and the third-stage filter element 8 is used for third-stage filtration of the air to be removed.

[0070] See Figure 5 As shown, specifically, both the second-stage filter element 7 and the third-stage filter element 8 are cylindrical structures. The second-stage filter element 7 is sleeved on the outside of the third-stage filter element 8. The air to be filtered after passing through the first-stage filter element 5 first passes through the second-stage filter element 7 for second-stage filtration, and then passes through the third-stage filter element 8 for third-stage filtration, thereby realizing the three-stage filtration process of the air to be filtered.

[0071] In one embodiment, the second-stage filter 7 is used to filter out large dust particles, and the third-stage filter 8 is used to filter out small dust particles, so as to achieve targeted filtration and cleaning of the air to be cleaned, and significantly improve the dust removal and filtration effect.

[0072] In one embodiment, the second-stage filter element 7 is a polyester fiber filter cartridge with a diameter of 325 mm, a length of 660 mm, and a filtration area of ​​40 m², and the third-stage filter element 8 is a dust collector bag.

[0073] In other embodiments, the filter assembly can also perform three-stage, four-stage, or five-stage filtration on the air to be filtered that enters the filter chamber 2 from the air inlet 101, and can be selected according to the actual dust removal needs.

[0074] In one embodiment of this application, a blow hole 301 is provided at the bottom of the blow chamber 3, the top of the filter assembly is connected to the bottom of the blow chamber 3, and the projection of the blow hole 301 onto the filter chamber 2 is placed inside the filter assembly.

[0075] The bottom of the blowing chamber 3 is connected to the top of the filter chamber 2 so that the internal space of the blowing chamber 3 is connected to the internal space of the filter chamber 2. Specifically, a blowing hole 301 is provided at the bottom of the blowing chamber 3. The blowing hole 301 is a through hole to realize the connection between the internal space of the blowing chamber 3 and the internal space of the filter chamber 2.

[0076] The blow chamber 3 can spray and wash the filter element in the filter chamber 2 through the blow hole 301. The top of the filter element is connected to the bottom of the blow chamber 3 so that the filter element is closer to the blow hole 301, thereby improving the cleaning effect on the filter element.

[0077] In one embodiment, the projection of the blow hole 301 onto the filter chamber 2 is placed inside the filter assembly, that is, the sidewall of the filter assembly surrounds and encloses the blow hole 301 to achieve blow rinsing of the filter assembly.

[0078] In one embodiment of this application, a nozzle is provided in the blow chamber 3, and the nozzle sprays and washes the filter assembly through the blow hole 301; or the blow chamber 3 has an openable / closeable blow chamber door 302, the blow chamber door 302 is sealed at the contact position with the housing 1, and the blow chamber 3 is used to allow an external spray gun to enter, and the external spray gun sprays and washes the filter assembly through the blow hole 301.

[0079] In one embodiment, a nozzle may be provided in the blowing chamber 3. The nozzle may be a pulse nozzle. The nozzle can spray water onto the filter assembly through the blowing hole 301 to clean the filter assembly, thereby ensuring the dust removal and filtration effect of the filter assembly.

[0080] In one embodiment, when it is necessary to clean the filter assembly, the blow chamber door 302 of the blow chamber 3 can be opened, and the operator can enter the blow chamber 3 with an external spray gun and use the external spray gun to clean the filter assembly through the blow hole 301 to remove dust from the filter assembly.

[0081] In one embodiment of this application, a dust discharge container 9 is detachably provided at the bottom of the filter chamber 2, and the dust discharge container 9 is used to collect dust falling from the filter assembly.

[0082] A dust discharge container 9 is detachably installed at the bottom of the filter chamber 2. During the dust removal process, the dust filtered by the filter components will fall downwards under the action of gravity. The dust discharge container 9 is placed at the bottom of the filter chamber 2 and can receive the dust falling from the filter components, so as to collect the dust and clean the dust inside the dust removal device.

[0083] In one embodiment, the ash discharge container 9 is drawer-shaped, and a handle is provided on the outer wall of the ash discharge container 9 so that the operator can grasp and pull out the ash discharge container 9 to facilitate cleaning the dust collected inside the ash discharge container 9.

[0084] Furthermore, when the ash discharge container 9 is closed (not pulled out), the contact point between the ash discharge container 9 and the casing 1 is sealed to ensure that a negative pressure is formed inside the casing 1 under the action of the exhaust component 4 for dust removal. For example, a sealing strip is provided at the contact point between the ash discharge container 9 and the casing 1.

[0085] In addition, in order not to affect the pulling process of the ash discharge container 9, the bottom of the filter assembly is higher than the top of the ash discharge container 9.

[0086] In one embodiment of this application, the dust removal device further includes an exhaust chamber 10, which is disposed on the housing 1 and located above the spray chamber 3. The exhaust chamber 10 is connected to the spray chamber 3, and the exhaust component 4 is disposed inside the exhaust chamber 10.

[0087] See Figures 1-3 As shown, the dust removal device also includes an exhaust chamber 10, which is located on the casing 1 and above the blow-jet chamber 3, i.e., the exhaust chamber 10 is located at the top of the casing 1. The exhaust port and exhaust component 4 of the casing 1 are both located in the exhaust chamber 10. The exhaust chamber 10 is connected to the blow-jet chamber 3. When the exhaust component 4 is working, it draws air from inside the casing 1, creating a negative pressure inside the casing 1. The air to be cleaned from the outside space enters the filter chamber 2, the blow-jet chamber 3, and the exhaust chamber 10 sequentially from the air inlet 101, and is then discharged from the casing 1.

[0088] In one embodiment, a fan cover 16 is provided above the exhaust chamber 10, and the fan cover 16 encloses to form part of the outer wall of the exhaust chamber 10. The exhaust component 4 is disposed inside the exhaust chamber 10. Specifically, the exhaust component 4 is installed at the bottom of the exhaust chamber 10.

[0089] The top of the fan cover 16 has an opening covered by a grille plate 15 to block the top opening of the fan cover 16, preventing external debris from accidentally entering the exhaust chamber 10 and affecting the normal operation of the exhaust component 4, thus ensuring the safety and reliability of the dust removal device.

[0090] In one embodiment, the exhaust chamber 10 has an exhaust chamber door 1001, one side of which is hinged to the housing 1. The exhaust chamber door 1001 can be opened or closed relative to the housing 1. When the exhaust chamber door 1001 is closed, the contact position between the exhaust chamber door 1001 and the housing 1 is sealed to ensure the normal operation of the dust removal device. When the exhaust chamber door 1001 is open, relevant operations can be performed on the interior of the exhaust chamber 10, such as cleaning the inner wall of the exhaust chamber 10 and repairing the exhaust components 4.

[0091] In one embodiment of this application, the dust removal device further includes a suction pipe 11, which is detachably connected to the air inlet 101, and a first-stage filter element 5 is disposed on the suction pipe 11.

[0092] See Figure 6 As shown, the dust removal device also includes a suction pipe 11, which has an inlet and an outlet. When it is necessary to remove dust from small areas such as equipment gaps, the first suction hood 6 can be removed, and the inlet of the suction pipe 11 can be installed at the air inlet 101. The cross-sectional area of ​​the suction pipe 11 inlet is smaller than that of the first suction hood 6, making it suitable for removing dust from hard-to-reach areas such as equipment gaps.

[0093] The length of the suction pipe 11 is unlimited, so that the operator can hold it and remove dust from hard-to-reach areas.

[0094] In one embodiment, the inlet of the suction pipe 11 is further provided with a second suction hood 1101, the overall size of which is smaller than that of the first suction hood 6. The second suction hood 1101 has an air inlet and an air outlet, and the cross-sectional area of ​​the second suction hood 1101 gradually decreases from its air inlet to its air outlet, forming a funnel-shaped structure. This shape of the second suction hood 1101 is beneficial for gathering and collecting the air to be cleaned from the external space, accelerating the rate at which the air to be cleaned enters the dust removal device, and improving the dust removal efficiency.

[0095] Furthermore, the suction pipe 11 is also equipped with a first-stage filter 5. The first-stage filter 5 can perform first-stage filtration on the air to be cleaned entering the air inlet 101. The first-stage filter 5 is used to filter out impurities, specifically, to filter out larger impurities, such as straw, etc., which can prevent larger impurities from entering the interior of the dust removal device, realize graded filtration of the air to be cleaned, and avoid larger impurities from affecting the filtration effect and service life of the filter components.

[0096] In one embodiment of this application, the dust removal device further includes an explosion venting structure disposed in the housing 1.

[0097] If the working space or area of ​​a dust collection device is classified as an explosive location, and the device draws in air to be cleaned, a large amount of dust accumulates inside, posing a risk of dust explosion. (See also...) Figure 1 and Figure 3 As shown, the dust removal device also includes an explosion venting structure, which is installed in the housing 1. The explosion venting structure is a weak area on the housing 1. When a dust explosion occurs inside the dust removal device, the internal pressure of the housing 1 increases instantaneously. The explosion venting structure will be pushed open by the internal pressure first, thereby relieving the pressure inside the housing 1 and preventing the housing 1 from exploding as a whole, thus avoiding serious safety accidents.

[0098] In one embodiment, the explosion venting structure includes an explosion venting disc 12, which is disposed on the side wall of the housing 1. The connection strength between the explosion venting disc 12 and the side wall of the housing 1 is less than the structural strength of the housing 1. When a dust explosion occurs inside the dust collector, the internal pressure of the housing 1 increases instantaneously. The high pressure inside the housing 1 will preferentially force open the explosion venting disc 12, causing the connection between the explosion venting disc 12 and the side wall of the housing 1 to break. This releases the internal pressure of the housing 1, thus protecting the entire dust collector and preventing serious safety accidents.

[0099] The dust removal process of the dust removal device of this application will be described below with reference to the accompanying drawings:

[0100] When dust removal is required in a large space (such as an equipment workshop), the first dust suction hood 6 is installed at the air inlet 101, and the filter chamber door 201, the blower door 302, the dust discharge container 9, and the exhaust chamber door 1001 are closed. The exhaust component 4 is activated to draw air from the casing 1, causing the air in the casing 1 to be discharged from the bottom to the exhaust port. At the same time, a negative pressure is formed inside the casing 1, and the air to be removed from the external space enters the casing 1 from the air inlet 101. The air to be removed first passes through the first-stage filter element 5 to remove larger impurities (such as straw), and then enters the filter chamber 2. In the filter chamber 2, the air to be removed first passes through the second-stage filter element 7 to remove large dust particles, and then passes through the third-stage filter element 8 to remove small dust particles, achieving a targeted three-stage filtration process. Finally, clean air is discharged from the exhaust port from the casing 1.

[0101] When dust removal is required in a small area (such as mechanical equipment), install the suction pipe 11 at the air inlet 101, and close the filter chamber door 201, the blower door 302, the dust discharge container 9, and the exhaust chamber door 1001. Activate the exhaust component 4 to draw air from the casing 1, causing the air inside the casing 1 to be discharged from the bottom up through the exhaust port. Simultaneously, a negative pressure is created inside the casing 1, and the air to be removed from the outside space enters the casing 1 through the air inlet 101. The air to be removed first passes through the first-stage filter element 5 to remove larger impurities (such as straw), and then enters the filter chamber 2. In the filter chamber 2, the air to be removed first passes through the second-stage filter element 7 to remove large dust particles, and then passes through the third-stage filter element 8 to remove small dust particles, achieving a targeted three-stage filtration process. Finally, clean air is discharged from the exhaust port from the casing 1.

[0102] In the dust removal device of this application, the air inlet 101 is set on the side wall of the casing 1, and the filter chamber 2, the blowing chamber 3 and the exhaust chamber 10 are arranged in sequence from bottom to top in the vertical direction, so as to make full use of the vertical space, making the dust removal device compact in structure, smaller in size, convenient to move and use, and making the dust removal operation more flexible.

[0103] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0104] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A dust removal device, characterized in that, include: The casing (1) is provided with an air inlet (101) and an air outlet; A filter chamber (2) is disposed inside the housing (1). The filter chamber (2) is connected to the air inlet (101). A filter assembly is disposed inside the filter chamber (2). The filter assembly is used to perform at least two stages of filtration on the air to be cleaned that enters the filter chamber (2) from the air inlet (101). The blow chamber (3) is disposed inside the housing (1) and located above the filter chamber (2), and the bottom of the blow chamber (3) is connected to the top of the filter chamber (2); The exhaust component (4) is located near the exhaust port and is used to draw air from the housing (1) and create negative pressure inside the housing (1).

2. The dust removal device according to claim 1, characterized in that, It also includes a first-stage filter (5), which is disposed near the air inlet (101) and is used to filter out impurities.

3. The dust removal device according to claim 2, characterized in that, It also includes a first dust hood (6), which is detachably connected to the air inlet (101), and the first-stage filter (5) is disposed on the first dust hood (6).

4. The dust removal device according to claim 2, characterized in that, It also includes a suction pipe (11), which is detachably connected to the air inlet (101), and the first-stage filter (5) is disposed on the suction pipe (11).

5. The dust removal device according to claim 1, characterized in that, The filter assembly includes a second-stage filter element (7) and a third-stage filter element (8). The second-stage filter element (7) is sleeved on the outside of the third-stage filter element (8). The second-stage filter element (7) is used to filter out large dust particles, and the third-stage filter element (8) is used to filter out small dust particles.

6. The dust removal device according to claim 1, characterized in that, The bottom of the blow chamber (3) is provided with a blow hole (301), the top of the filter assembly is connected to the bottom of the blow chamber (3), and the projection of the blow hole (301) onto the filter chamber (2) is placed inside the filter assembly.

7. The dust removal device according to claim 6, characterized in that, The spray chamber (3) is equipped with a nozzle, which sprays the filter assembly through the spray hole (301); or The blow chamber (3) has an openable / closeable blow chamber door (302), the blow chamber door (302) is sealed at the contact position with the housing (1), the blow chamber (3) is used to allow an external spray gun to enter, and the external spray gun sprays the filter assembly through the blow hole (301).

8. The dust removal device according to claim 1, characterized in that, The bottom of the filter chamber (2) is detachably provided with a dust discharge container (9), which is used to collect dust falling from the filter assembly.

9. The dust removal device according to claim 1, characterized in that, It also includes an exhaust chamber (10), which is disposed on the housing (1) and located above the spray chamber (3). The exhaust chamber (10) is connected to the spray chamber (3), and the exhaust component (4) is disposed in the exhaust chamber (10).

10. The dust removal device according to any one of claims 1-9, characterized in that, It also includes an explosion venting structure, which is disposed in the housing (1).

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