Modular Dust Collector with Drawer-Type Filter and Pulse Cleaning
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Solution Overview
Problem
Existing dust collectors face issues of low efficiency, long construction periods, high costs, and cumbersome maintenance, particularly in industries like electric power, petrochemical, metallurgy, and steel, due to on-site assembly challenges and high dust removal pressure, which affect installation quality and dust removal effectiveness.
Innovation Solution
A modularized dust collector system with integrated components such as an air inlet guide, filtering device, dust removal device, air outlet device, and dust collecting device, allowing for factory assembly and easy installation, featuring a box structure and drawer-type push-pull design, along with a blowback structure for dust removal and pneumatic conveying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If on-site assembly is used for dust collector components, then the system can be installed at the required location, but the installation period extends to more than three months with huge workload
Solution Approach 1:
The dust collector is divided into multiple standardized modules (dust collection module, filtration module, pulse control module, etc.) that can be independently manufactured and assembled. This segmentation enables factory pre-assembly while maintaining on-site installation flexibility, reducing the installation period from over three months to a much shorter duration.
Solution Approach 2:
Auxiliary equipment such as the dust collection box, filter bag assembly, and pulse control valves are pre-assembled and pre-tested in the factory before being transported to the site. This preliminary action eliminates the need for complex on-site assembly operations, significantly reducing the installation period and workload while maintaining adaptability to different installation locations.
2Adaptability or versatility
If on-site assembly is performed, then the dust collector can be installed locally, but construction quality is easily affected by working conditions
Solution Approach 1:
By segmenting the dust collector into standardized modules with uniform connection interfaces, the complexity of on-site assembly is reduced. Each module can be quickly connected using standardized procedures, minimizing the impact of variable on-site working conditions on assembly quality and ensuring consistent construction standards.
Solution Approach 2:
The patent employs standardized mechanical connection interfaces and modular design that replace complex mechanical assembly operations with simple connection actions. This substitution reduces the skill level required for on-site assembly and ensures consistent connection quality regardless of working conditions, as the modular interfaces are designed for repeatable, precise alignment and connection.
3Adaptability or versatility
If auxiliary equipment is transported to site for assembly, then the system can be installed, but a large amount of labor and material consumption is required
Solution Approach 1:
Multiple auxiliary equipment components (dust collection box, filter bag, cage, pulse control valves) are merged into integrated modules that are pre-assembled in the factory. This merging eliminates the need to transport and assemble multiple separate components on-site, significantly reducing both labor consumption and material handling requirements while maintaining the capability to install the complete system at the required location.
Solution Approach 2:
Auxiliary equipment is pre-assembled and pre-configured in the factory before transportation to the site. This preliminary action consolidates multiple assembly operations into a single factory process, reducing the amount of labor and materials that need to be handled and assembled on-site, thereby minimizing labor and material consumption during installation.
4Productivity
If pulse jet dust removal is used, then dust removal effect is good, but dust removal pressure is high and filter bag life is short
Solution Approach 1:
The dust removal system uses periodic pulse jet cleaning instead of continuous high-pressure dust removal. Control valves open sequentially to deliver short, intense air pulses to different sections of the filter bags at regular intervals. This periodic action achieves effective dust removal while significantly reducing the average dust removal pressure and minimizing damage to the filter bags, thereby extending their service life.
Solution Approach 2:
Instead of applying high pressure continuously to the entire filter surface, the pulse jet system applies excessive pressure momentarily to small sections at a time. The control valves direct high-pressure air pulses to specific rows of filter bags sequentially, achieving complete dust removal coverage over time while keeping the instantaneous pressure application brief and localized, which protects the filter bags from cumulative damage.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The modular system reduces installation time and cost, enhances efficiency, ensures effective dust removal, and minimizes space requirements, while extending filter bag life and reducing labor and material consumption.
Implementation Method 1
the filtering device includes a dust collector dust gas box, and a dust filter bag arranged inside the dust collector dust gas box
Implementation Method 2
The dust removal method of the pulse jet bag dust collector is to blow the filter bag with high pressure air of 0.2-0.5Mpa at a high speed, so that the filter bag generates pulse expansion vibration from the inside to the outside
Implementation Method 3
the filter bag generates pulse expansion vibration from the inside to the outside, and the outer surface of the filter bag obtains a large acceleration, thus shaking off the dust layer on the surface
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
Disclosed are a modularized dust collector system and a control method thereof. In the system, an air inlet and guide device (2) is in communication with a filter device (3), and the air inlet and guide device (2) is of a box structure and comprises a dust inlet channel (21), a dust guide plate (22) and an airflow uniform-distribution plate (23); the filter device (3) comprises a dust collector dust-air box (31) and a dust-removing filter bag (32), and the filter device (3) is of an integrated drawer-type push-pull structure as a whole; an air outlet device (5) is in communication with the filter device (3), and the air outlet device (5) comprises a dust collector purified air box (51) and an air outlet channel (52); an ash-removing device (4) is arranged inside the dust collector purified air box (51), and the ash-removing device (4) comprises a reverse-blowing structure (41) and a spray-blowing tube (42); and an ash collecting device (6) is in communication with the filter device (3), and the ash collecting device (6) is of a box structure, with an upper region in the box structure being provided with an ash hopper (61), and a lower region therein being provided with an ash conveying mechanism (62).