Sudoku type industrial dust remover

Abstract

The invention discloses a sudoku-type industrial dust remover, and relates to the technical field of industrial dust removal equipment, in particular to a sudoku-type industrial dust remover, which comprises a machine body, an air inlet and an air outlet are arranged at the upper end of the machine body, secondary beams, bottom beams, a bracket and a halfpace are arranged on the end surface of the machine body, and the lower end of the machine body is connected with an ash bucket; one end of the expansion joint is provided with a zipper machine, and the other end of the expansion joint is connected with an air locking blanking machine through an articulated chute. A frustum-shaped flow guide cone, a gas collection port, a gas purification chamber and a manhole door are sequentially arranged below the gas inlet, a blowing unit is mounted at the lower end of the gas purification chamber, and a dust filtration chamber is arranged below the blowing unit; a bag cage and a filter bag which are coaxially sleeved are arranged in the dust filtration chamber, and the bottom of the dust filtration chamber is limited by a bag blocking bottom net and is supported by a grid frame formed by a secondary beam and a bottom beam. The sudoku type industrial dust remover is optimized in structure, efficient in filtering and convenient to maintain, and aims to solve the problems that a traditional dust remover is large in airflow bias loss, difficult in filter bag maintenance, high in system air leakage rate, high in energy consumption and the like.

Description

Technical Field

[0001] This invention relates to the field of industrial dust removal equipment technology, specifically a nine-square-grid industrial dust collector. Background Technology

[0002] Industrial production processes (such as metallurgical sintering, building material cement kilns, and chemical material crushing) generate large amounts of dust-laden gases. Direct emissions of these gases can severely pollute the atmosphere and harm the health of workers. Therefore, industrial dust collectors, as one of the core devices for air pollution control, directly impact the environmental compliance and sustainable development capabilities of production enterprises.

[0003] However, existing patents have the following drawbacks:

[0004] (1) Uneven airflow distribution: After the dust-laden airflow enters the dust collector, it is easy for the flow to deviate, resulting in excessive filtration load and increased local wear in some filter bag areas, while other areas are underutilized, and the overall filtration efficiency is reduced.

[0005] (2) Inconvenient structural maintenance: The core components inside the dust collector (such as filter bags and pulse jet units) usually require disassembly of the outer shell or multiple layers of structure for maintenance, resulting in narrow operating space, long maintenance time and high labor intensity.

[0006] (3) Air leakage and energy consumption problems: Due to thermal expansion and contraction or installation errors, gaps are easily generated at the connection parts between the ash hopper and the expansion joint, which leads to an increase in the air leakage rate of the system. This not only increases the energy consumption of the fan, but may also cause dust overflow pollution.

[0007] (4) Insufficient protection of filter bags: In traditional designs, the filter bag support structure is simple. It is easily deformed and damaged by long-term airflow impact or dust pressure. Furthermore, the uneven distribution of pulse airflow during the dust removal process may further shorten the filter bag life.

[0008] (5) Low functional integration: The functional modules of the dust collector, such as air inlet, air outlet, ash hopper conveying and maintenance channel, are scattered, resulting in low space utilization and difficulty in forming a coordinated and optimized gas-solid separation path.

[0009] (6) Incomplete overall insulation: The upper part of the dust collector has a large number of maintenance holes and covers. These holes and covers cannot be insulated, and the air leakage cannot be guaranteed. The large area of ​​exposed external rainwater accumulation can easily cause corrosion of the shell. Summary of the Invention

[0010] The purpose of this invention is to provide a nine-square-grid industrial dust collector, specifically a nine-square-grid industrial dust collector with optimized structure, high-efficiency filtration and convenient maintenance, which aims to solve the problems of large airflow deviation loss, difficult filter bag maintenance, high system leakage rate and high energy consumption of traditional dust collectors.

[0011] To achieve the above objectives, the present invention provides the following technical solution: a nine-square-grid industrial dust collector, comprising a body, an air inlet at the upper end of the body, an air outlet at the upper end of the body, a secondary beam at the end face of the body, a bottom beam at the lower end of the body, a support at the end face of the body, a dust hopper at the lower end of the body, an expansion joint at the lower end of the dust hopper, a zipper mechanism at the end face of the expansion joint, a ladder at the end face of the body, a chute at the end face of the expansion joint, and an airlock feeder at the lower end of the chute.

[0012] Furthermore, the lower end face of the air inlet is provided with an air collecting port, the lower end of the air collecting port is provided with a clean air chamber, the end face of the machine body is provided with a manhole door, the lower end of the clean air chamber is provided with a jet blowing unit, the lower end of the jet blowing unit is provided with a dust filter chamber, the inner end of the dust filter chamber is provided with a bag cage and a filter bag, the lower end of the dust filter chamber is provided with a bag bottom net, and the lower end of the air inlet is provided with a guide cone.

[0013] Furthermore, the air intake adopts a top-intake configuration, and the air outlet adopts a top-outtake vertical convection layout, combined with a nine-square grid partition, so that the dust-laden airflow passes vertically through the filter bag, reducing airflow deviation loss and improving filtration efficiency.

[0014] Furthermore, a frustum-shaped guide cone is installed below the air inlet to evenly diffuse the high-speed, dust-laden airflow to the air collection port, reducing initial impact turbulence and minimizing localized wear on the filter bags. The clean air chamber and the dust filter chamber are connected via a manhole area. Opening the manhole allows direct access to the pulse-jet unit and filter bag area, facilitating manual cleaning of accumulated dust or replacement of damaged filter bags, thus balancing operational efficiency and maintenance convenience. After being filtered by the filter bags, the airflow is discharged through the upper outlet, forming a short-path, high-efficiency filtration channel and reducing dust accumulation in dead zones.

[0015] Furthermore, the ash hopper and the expansion joint are sealed together by a flexible flange. The thermal expansion and contraction compensation structure of the expansion joint can reduce the impact of shell deformation. Combined with the right-angle flow guiding design of the chute, stable dust transportation can be achieved.

[0016] Furthermore, the bag cage and filter bag in the dust filter chamber adopt a coaxial assembly structure, and the bottom is limited by a bag bottom net. This structural design can not only prevent the filter bag from sagging and deforming due to its own weight, but also provide a stable working space for the pulse jet cleaning process to ensure the cleaning effect. At the same time, it can also prevent the filter bag from falling into the ash hopper during maintenance or replacement.

[0017] Furthermore, the grid frame formed by the secondary beam and the bottom beam provides uniform support for the filter bag, avoiding the risk of damage caused by excessive stress at a single point. Combined with the vertical airflow penetration characteristics of the air intake layout, it further reduces the mechanical wear of the filter bag, realizing a dual bag protection mechanism of "structural protection + airflow optimization".

[0018] Furthermore, the guide cone below the air intake is truncated cone-shaped, which evenly diffuses the high-speed airflow to the air collection port, reducing the impact turbulence in the initial stage of air intake and reducing local wear of the filter bag.

[0019] Furthermore, the inclined ladder extending from the side of the machine body forms a safety passage with the end face, which not only facilitates personnel to enter the interior for maintenance through the manhole, but also ensures the stability of the external operating platform. The entire structural design enhances the modular maintenance characteristics, allowing direct access to the core dust filtration area through the manhole, shortening maintenance time. At the same time, the sealed structure and uniformly stressed frame reduce the equipment failure rate, taking into account both safety and economy.

[0020] Furthermore, the ash hopper and expansion joint are connected by a flexible flange seal, utilizing the thermal expansion and contraction compensation structure of the expansion joint to absorb the deformation stress of the shell caused by temperature changes. Simultaneously, the right-angle guide design of the chute ensures stable dust transport. Furthermore, the connection between the expansion joint and the zipper conveyor employs a labyrinth seal structure, combined with precise docking control of the chute and the rotary air-locking feeder, forming a multi-stage sealing system. This effectively reduces the air leakage rate of the entire dust collection system, improves system energy efficiency, and reduces dust overflow. The zipper conveyor and rotary air-locking feeder located at the bottom of the dust collector save vertical space for equipment installation and more thoroughly isolate the airflow from the air conveying chute of the next process, preventing excess airflow from entering the dust collector. Its air-locking effect is superior to traditional flap valves, helping to stabilize the negative pressure environment inside the dust collector.

[0021] This invention provides a nine-square-grid industrial dust collector, which has the following beneficial effects:

[0022] 1. High-efficiency filtration and optimized airflow design

[0023] Vertical convection layout and nine-square grid partitioning: The vertical convection layout with top air intake and top air outlet, combined with the nine-square grid partitioning design, allows the dust-laden airflow to pass vertically through the filter bag, significantly reducing airflow deviation loss and improving filtration efficiency; at the same time, it forms a short-path high-efficiency filtration channel, avoids dust accumulation in dead zones, ensures airflow uniformity, and optimizes dust removal performance from the source.

[0024] The guide cone and the air collection port work together: The frustum-shaped guide cone below the air inlet evenly diffuses the high-speed dust-laden airflow to the air collection port, reducing the impact turbulence in the initial stage of air intake, reducing local wear of the filter bag, extending the service life of the filter bag, and improving the initial filtration stability.

[0025] 2. Structural protection and reduced mechanical wear

[0026] Double protective bag mechanism:

[0027] The grid frame formed by the secondary beam and the bottom beam provides uniform support for the filter bag, avoiding the risk of damage caused by excessive stress at a single point. Combined with the vertical airflow penetration characteristics, it achieves a dual bag protection effect of "structural protection + airflow optimization", significantly reducing the mechanical wear of the filter bag.

[0028] The bag cage and filter bag are coaxially assembled, and the bottom is limited by a bag bottom net to prevent the filter bag from sagging and deforming due to gravity. This provides a stable cleaning space for pulse jet cleaning, ensuring the cleaning effect while reducing filter bag deformation and loss.

[0029] Flexible connection and stress compensation: The ash hopper and the expansion joint are sealed together by a flexible flange. The thermal expansion and contraction compensation structure of the expansion joint absorbs the deformation stress of the shell, reduces the risk of structural damage caused by temperature changes or vibration, and improves the long-term reliability of the equipment.

[0030] 3. Sealed, energy-saving, and stable dust conveying

[0031] Multi-stage sealing system: The expansion joint and the zipper machine, the chute and the airlock feeder adopt a labyrinth seal and precise docking control to form a multi-stage sealing system, which effectively reduces the air leakage rate of the entire dust removal system, reduces dust overflow, and improves system energy efficiency, meeting the requirements of energy conservation and environmental protection.

[0032] Stable dust conveying: The flexible connection of the expansion joint, combined with the right-angle flow guiding design of the chute, enables stable dust conveying, avoids system pressure fluctuations caused by blockage or poor conveying, and ensures the continuity of the dust removal process.

[0033] 4. Convenient maintenance and modular design

[0034] Quick maintenance in the manhole area: The clean air chamber and the dust filter chamber are connected through the manhole area. After the manhole is opened, you can directly access the pulse jet unit and filter bag area, which is convenient for manual cleaning of accumulated dust or replacement of damaged filter bags, shortening maintenance time and balancing operating efficiency and maintenance convenience.

[0035] Safety passage and modular maintenance: The ladder extending obliquely on the side of the machine body forms a safety passage, which ensures the safety of personnel during maintenance and enhances the modular maintenance characteristics. The sealed structure and uniform stress frame reduce the equipment failure rate and achieve a balance between safety and economy.

[0036] 5. Optimization of core performance indicators

[0037] Through the above innovative design, the overall production line achieves three core advantages:

[0038] Lower power consumption: Efficient filtration path, stable airflow control and low air leakage rate reduce system energy consumption and lower operating costs;

[0039] Longer filter bag life: Structural protection, reduced wear, and precise dust removal design extend the service life of filter bags and reduce replacement frequency;

[0040] Smaller footprint: The compact nine-grid layout and optimized structural design enable miniaturization of the equipment while maintaining the same processing capacity, saving installation space. Attached Figure Description

[0041] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0042] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0043] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0044] Figure 3 This is a plan view of the overall structure of the present invention. Detailed Implementation

[0045] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of this disclosure as detailed in the appended claims.

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0047] Example 1: Dust removal scenario of sintering machine in steel plant

[0048] In the flue gas treatment system of a sintering machine in a steel plant, this nine-square-grid industrial dust collector is used. Its specific structure and working process are as follows:

[0049] The main body 1 is welded from Q345B steel plate. Two rectangular air inlets 2 and two circular air outlets 3 are symmetrically arranged at the upper end. The end face is bolted to the secondary beam 11 and the bottom beam 12 to form a 3×3 grid frame. The lower end is supported on the ground by a bracket 13. The ash hopper 14 is a conical hopper structure, with its lower end sealed to the expansion joint 15 via a flexible flange. The other end of the expansion joint is connected to a chute 18, and a lock-type feeder 19 is installed at the lower end of the chute.

[0050] After entering through inlet 2, the dust-laden flue gas undergoes vertical convection through the top inlet and outlet, and is evenly diffused to the collection port 4 via the frustoconical guide cone 9, reducing initial impact turbulence. The airflow then vertically passes through the filter bags 82 inside the dust filtration chamber 8. The filter bags 82 are fitted over the bag cage 81, and their bottoms are secured by a bottom mesh 83 to prevent sagging. The filtered clean airflow exits through the clean air chamber 5 and then through outlet 3, forming a short-path filtration channel and reducing dust accumulation in dead zones.

[0051] During operation, when the resistance of filter bag 82 reaches 1500Pa, the pulse jet cleaning unit 7 is activated to perform pulse back-blowing cleaning of filter bag 82. During maintenance, the manhole door 6 on the side of the clean air chamber 5 is opened, and personnel can directly enter the dust filter chamber 8 to replace damaged filter bag 82 or clean accumulated dust. The grid frame of the secondary beam 11 and the bottom beam 12 effectively disperses the stress on the filter bag, and the measured mechanical wear rate of the filter bag is reduced by 40% compared with traditional dust collectors.

[0052] Example 2: Dust removal scenario of kiln tail gas in a cement plant

[0053] In the kiln tail exhaust gas treatment line of a cement plant, this dust collector is optimized for high-concentration, fine-particle dust, and the specific implementation is as follows:

[0054] The machine body 1 is made of corrosion-resistant 316L stainless steel. The air inlet 2 and the air outlet 3 are both located on the top of the machine body. The secondary beam 11 and the bottom beam 12 form a 3×3 grid frame. The lower end of the ash hopper 14 is connected to the expansion joint 15 through a flexible flange silicone rubber sealing gasket. The chute 18 is precisely connected to the airlock feeder 19.

[0055] After entering through inlet 2, the dust-laden exhaust gas is evenly diffused to the collection port 4 at a high speed of 25 m / s by the frustoconical guide cone 9, reducing the local wear of the filter bag 82 caused by the inlet turbulence. The airflow passes vertically through the filter bag 82 in the dust filtration chamber 8. The bag cage 81 is coaxially fitted with the filter bag 82, and the bottom bag net 83 ensures the verticality of the filter bag. The filtered clean airflow is discharged from the outlet 3 through the clean air chamber 5. The short path design effectively reduces dust accumulation in dead zones.

[0056] During maintenance, personnel can enter through the inclined ladder 17 on the side of the machine body, open the manhole door 6 and go directly to the blow unit 7, where they can quickly replace the filter bag 82 or clean the blow pipe blockage. The grid frame of the secondary beam 11 and the bottom beam 12 disperses the stress on the filter bag, and with the vertical air penetration characteristics, the measured life of the filter bag is extended from the traditional 18 months to 30 months.

[0057] Example 3: VOCs exhaust gas purification scenario in a chemical workshop

[0058] In a VOCs waste gas treatment system of a chemical enterprise, this dust collector is designed for low-concentration, high-volume operating conditions, and its specific implementation is as follows:

[0059] The machine body 1 is made of Q235B steel plate. The air inlet 2 and the air outlet 3 are respectively located on the top two sides of the machine body. The secondary beam 11 and the bottom beam 12 form a 3×3 grid frame. The lower end of the ash hopper 14 is connected to the expansion joint 15 through a flexible flange. The chute 18 is connected to the airlock feeder 19. The expansion joint 15 and the zipper machine 16 are sealed with a labyrinth seal.

[0060] After VOCs-containing waste gas enters through inlet 2, it is evenly diffused to collection port 4 by frustoconical guide cone 9, reducing the impact of initial turbulence on filter bag 82. The airflow passes vertically through filter bag 82 in dust filtration chamber 8. Bag cage 81 is coaxially installed with filter bag 82, and bottom bag net 83 prevents filter bag deformation due to negative pressure. After filtration, the clean airflow is discharged from outlet 3 through clean air chamber 5. The short path design reduces dust accumulation in dead zones.

[0061] During operation, the thermal expansion and contraction compensation structure of the expansion joint 15 effectively absorbs the deformation of the machine body caused by temperature changes; during maintenance, personnel can enter through the ladder platform 17, open the manhole door 6, and directly inspect the blow-jet unit 7 and filter bag 82. The modular design shortens the single maintenance time from the traditional 8 hours to 3 hours; the system air leakage rate is tested to be ≤2%, which significantly reduces energy consumption and reduces the fugitive emissions of VOCs.

[0062] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer for control. The detailed description of known functions and components is omitted in the specific implementation of this disclosure. To ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.

[0063] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A nine-square-grid industrial dust collector, comprising a body (1), characterized in that: The upper end of the machine body (1) is provided with an air inlet (2), the upper end of the machine body (1) is provided with an air outlet (3), the end face of the machine body (1) is provided with a secondary beam (11), the lower end of the machine body (1) is provided with a bottom beam (12), the end face of the machine body (1) is provided with a bracket (13), the lower end of the machine body (1) is provided with an ash hopper (14), the lower end of the ash hopper (14) is provided with an expansion joint (15), the end face of the expansion joint (15) is provided with a zipper machine (16), the end face of the machine body (1) is provided with a ladder (17), the end face of the expansion joint (15) is provided with a chute (18), and the lower end of the chute (18) is provided with a lock air feeder (19).

2. The nine-square-grid industrial dust collector according to claim 1, characterized in that: The lower end face of the air inlet (2) is provided with an air collection port (4), the lower end of the air collection port (4) is provided with a clean air chamber (5), the end face of the body (1) is provided with a manhole door (6), the lower end of the clean air chamber (5) is provided with a blowing unit (7), the lower end of the blowing unit (7) is provided with a dust filter chamber (8), the inner end of the dust filter chamber (8) is provided with a bag cage (81) and a filter bag (82), the lower end of the dust filter chamber (8) is provided with a bottom net (83), and the lower end of the air inlet (2) is provided with a guide cone (9).

3. The nine-square-grid industrial dust collector according to claim 1, characterized in that: The air inlet (2) adopts an upward air intake, and the air outlet (3) adopts an upward air outlet with a vertical convection layout. Combined with the nine-square grid partition, the dust-laden airflow passes vertically through the filter bag (82), reducing airflow deviation loss and improving filtration efficiency.

4. The nine-square-grid industrial dust collector according to claim 1, characterized in that: Below the air inlet (2), a frustum-shaped guide cone (9) is provided to evenly diffuse the high-speed dust-laden airflow to the air collection port (4), reducing the initial impact turbulence of the air intake and reducing local wear of the filter bag (82). The clean air chamber (5) and the dust filter chamber (8) are connected through the manhole door (6). After the manhole door is opened, it can directly reach the blowing unit (7) and the filter bag area, which is convenient for manual cleaning of accumulated dust or replacement of damaged filter bags, taking into account both operating efficiency and maintenance convenience. After the airflow is filtered by the filter bag, it is discharged through the upper air outlet (3), forming a short-path high-efficiency filtration channel and reducing dust accumulation in dead zones.

5. A nine-square-grid industrial dust collector according to claim 1, characterized in that: The ash hopper (14) and the expansion joint (15) are sealed together by a flexible flange. The thermal expansion and contraction compensation structure of the expansion joint (15) can reduce the influence of shell deformation. Combined with the right-angle flow guiding design of the chute (18), stable dust transportation can be achieved.

6. A nine-square-grid industrial dust collector according to claim 2, characterized in that: The bag cage (81) and filter bag (82) in the dust filter chamber (8) adopt a coaxial assembly structure, and the bottom of the bag is limited by the bottom net (83). This structure design can prevent the filter bag (82) from deforming due to its own weight, and can provide a stable working space for the pulse jet cleaning process to ensure the cleaning effect. At the same time, it can also prevent the filter bag from falling into the ash hopper when the filter bag is inspected or replaced.

7. A nine-square-grid industrial dust collector according to claim 1, characterized in that: The grid frame formed by the secondary beam (11) and the bottom beam (12) provides uniform support for the filter bag, avoiding the risk of damage caused by excessive stress at a single point. Combined with the vertical airflow penetration characteristics of the air intake layout, it further reduces the mechanical loss of the filter bag and realizes the dual bag protection mechanism of "structural protection + airflow optimization".

8. A nine-square-grid industrial dust collector according to claim 1, characterized in that: The guide cone (9) below the air inlet (2) is truncated cone-shaped, which evenly diffuses the high-speed airflow to the air collection port (4), reduces the impact turbulence in the initial stage of air intake, and reduces the local wear of the filter bag (82).

9. A nine-square-grid industrial dust collector according to claim 1, characterized in that: The ladder (17) extending obliquely on the side of the body (1) forms a safety passage with the end face, which facilitates personnel to enter the interior for maintenance through the manhole (6) and ensures the stability of the external operating platform. The entire structural design enhances the modular maintenance characteristics, allowing direct access to the core dust filtration area through the manhole (6), shortening maintenance time. At the same time, the sealed structure and uniformly stressed frame reduce the equipment failure rate, taking into account both safety and economy.

10. A nine-square-grid industrial dust collector according to claim 1, characterized in that: The ash hopper (14) and expansion joint (15) are connected by a flexible flange seal. The thermal expansion and contraction compensation structure of the expansion joint (15) absorbs the deformation stress of the shell caused by temperature changes. At the same time, with the right-angle flow guide design of the chute (18), the dust can be stably transported. Furthermore, the connection between the expansion joint (15) and the zipper machine (16) adopts a labyrinth seal structure. Combined with the precise docking control of the chute (18) and the rotary air-locking feeder (19), they together form a multi-level sealing system, which can effectively reduce the air leakage rate of the entire dust removal system, improve the system energy efficiency and reduce dust overflow. The zipper machine and rotary air-locking feeder configured at the bottom of the dust collector can save vertical space for equipment installation and can also more thoroughly isolate the air from the air conveying chute of the next process, preventing excess airflow from entering the dust collector. Its air-locking effect is better than that of the traditional flap valve, which helps to stabilize the negative pressure environment inside the dust collector.

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