Air supplement adjusting device for multi-tube dust remover

Abstract

The utility model provides an air supplement adjusting device for a multi-tube dust remover. The air supplement adjusting device comprises a multi-tube dust remover body, an inlet of the circulating fan is connected with the multi-tube dust remover body; the circulating fan outlet flue gas flow meter is arranged at an outlet of the circulating fan; the air supplement pipeline is arranged between the return air outlet of the circulating fan and the air supplement inlet of the multi-tube dust remover body; the fan return air valve is arranged at the return air outlet of the circulating fan; the air supplement flue gas flow meter is arranged on the air supplement pipeline; and the air supplement valve is arranged at an air supplement inlet of the multi-tube dust remover body. In different working condition stages (debugging, commissioning and running) of a sintering flue gas internal circulation system, the multi-tube dust remover is adjusted in different bins, it is ensured that the air volume of the dust remover meets the requirement, and efficient flue gas dust removal is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of sintering flue gas circulation, and in particular relates to a makeup air regulating device for a multi-tube dust collector. Background Technology

[0002] The sintering flue gas internal circulation technology treats a portion of the sintering flue gas through a multi-tube dust collector, then returns it to the sintering trolley material surface via a circulating fan. This recovers sensible and latent heat from the flue gas, increasing the concentration of sulfur dioxide, nitrogen oxides, and dust, reducing the processing load on subsequent desulfurization and denitrification systems, lowering environmental pollution and resource consumption, and achieving energy conservation and emission reduction. The multi-tube dust collector, as the core equipment of the system, is installed between the circulating fan and the collecting flue gas duct to treat the flue gas from the collecting flue. Due to the dynamic changes in the pre-dust collection flue gas volume and the fan return air volume under different operating conditions, the treatment efficiency and air volume of the multi-tube dust collector are affected. Under low circulation rate conditions, the reduced air volume handled by the dust collector may lead to decreased dust collection efficiency, increased outlet dust, and consequently, affect system stability and equipment lifespan. When the multi-tube dust collector requires additional air volume, its temperature must be considered. If the temperature of the multi-tube dust collector in the system is too high, the pre-dust collection air supply valve should be opened for cooling. When the temperature of the multi-tube dust collector is too low, the fan return air device replenishes air. However, it cannot achieve efficient dust removal under different operating conditions, nor can it dynamically adjust the air volume replenishment and the number of cyclones in the dust collector. Utility Model Content

[0003] One object of this invention is to provide a makeup air regulating device for a multi-tube dust collector, and to provide at least the advantages described below.

[0004] Another objective of this invention is to provide a make-up air regulating device for a multi-tube dust collector, which enables compartmentalized regulation of the multi-tube dust collector during different operating stages (debugging, trial operation, and operation) of the sintering flue gas internal circulation system, ensuring that the air volume of the dust collector meets the requirements and achieving efficient flue gas dust removal.

[0005] The technical solution of this utility model is as follows:

[0006] A makeup air regulating device for a multi-tube dust collector includes:

[0007] Multi-tube dust collector body;

[0008] A circulating fan, the inlet of which is connected to the body of the multi-tube dust collector;

[0009] A flue gas flow meter at the outlet of the circulating fan is installed at the outlet of the circulating fan.

[0010] The make-up air duct is located between the return air outlet of the circulating fan and the make-up air inlet of the multi-tube dust collector body.

[0011] A return air valve for the circulating fan is located at the return air outlet of the circulating fan.

[0012] A make-up air flue gas flow meter is installed on the make-up air duct;

[0013] And a make-up air valve, which is located at the make-up air inlet of the multi-tube dust collector body.

[0014] Preferably, in the make-up air regulating device for the multi-tube dust collector, the multi-tube dust collector has a compartmentalized structure, consisting of a first sub-compartment, a second sub-compartment, and a third sub-compartment that are independent of each other.

[0015] Preferably, in the make-up air regulating device for the multi-tube dust collector, the inlet and outlet of the first sub-compartment, the second sub-compartment, and the third sub-compartment are respectively provided with a first inlet regulating valve, a second inlet regulating valve, a third inlet regulating valve, a first outlet regulating valve, a second outlet regulating valve, and a third outlet regulating valve.

[0016] Preferably, in the aforementioned make-up air regulating device for a multi-tube dust collector,

[0017] When the system's circulating air volume is 50% of the full load air volume, the inlet regulating valve and outlet regulating valve of the second sub-compartment are opened;

[0018] When the system's circulating air volume is 70% of the full load air volume, the first sub-compartment inlet regulating valve, the second sub-compartment inlet regulating valve, the first sub-compartment outlet regulating valve, and the second sub-compartment outlet regulating valve are opened, or the second sub-compartment inlet regulating valve, the third sub-compartment inlet regulating valve, the second sub-compartment outlet regulating valve, and the third sub-compartment outlet regulating valve are opened.

[0019] When the system's circulating air volume is at full load, the first inlet regulating valve, the second inlet regulating valve, the third inlet regulating valve, the first outlet regulating valve, the second outlet regulating valve, and the third outlet regulating valve are all open.

[0020] This utility model has the following beneficial effects:

[0021] This invention enables automatic interlocking operation, working in conjunction with the circulating fan return air volume and the pre-dust removal air supply system. Under high circulation rate conditions, the device is in a closed state; under other conditions, the control system automatically starts, calculating the required air supply volume based on data from the circulating fan outlet flue gas flow meter and adjusting the air supply valve opening. Simultaneously, it adjusts the compartmentalization of the multi-tube dust collector's regulating valve to ensure efficient dust collector operation and system stability.

[0022] This invention effectively improves the operational stability and efficiency of the flue gas recirculation system under low recirculation rate conditions, while protecting the circulating fans and dust removal flue gas ducts in subsequent stages. Under high recirculation rate conditions, the device can be completely shut down without negatively impacting the system. This device has low investment costs, requires no additional land, is reliable in operation, and has automated operation capabilities, making it widely applicable.

[0023] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0024] Figure 1 A schematic diagram of one embodiment of the make-up air regulating device for a multi-tube dust collector provided by this utility model;

[0025] Figure 2 This is a schematic diagram of the compartmentalized structure of a multi-tube dust collector, which is one embodiment of the make-up air regulating device for a multi-tube dust collector provided by this utility model. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0027] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not imply the presence or addition of one or more other elements or combinations thereof.

[0028] like Figure 1 and Figure 2 As shown, this utility model provides a makeup air regulating device for a multi-tube dust collector, which includes:

[0029] Multi-tube dust collector body 1;

[0030] The circulating fan 2 has its inlet connected to the multi-tube dust collector body 1;

[0031] A flue gas flow meter 3 is installed at the outlet of the circulating fan 2;

[0032] The make-up air duct 4 is located between the return air outlet of the circulating fan 2 and the make-up air inlet of the multi-tube dust collector body 1.

[0033] The return air valve 5 is located at the return air outlet of the circulating fan 2.

[0034] The make-up air flue gas flow meter 6 is installed on the make-up air duct 4;

[0035] And the make-up air valve 7, which is located at the make-up air inlet of the multi-tube dust collector body 1.

[0036] The multi-tube dust collector 1 has a compartmentalized structure, consisting of a first sub-compartment 11, a second sub-compartment 12, and a third sub-compartment 13, which are independent of each other.

[0037] The first sub-compartment 11, the second sub-compartment 12 and the third sub-compartment 13 are respectively provided with a first inlet regulating valve 14, a second inlet regulating valve 15, a third inlet regulating valve 16 and a first outlet regulating valve 17, a second outlet regulating valve 18 and a third outlet regulating valve 19 at their inlets and outlets.

[0038] When the system's circulating air volume is 50% of the full load air volume, the inlet regulating valve and outlet regulating valve of the second sub-compartment are opened;

[0039] When the system's circulating air volume is 70% of the full load air volume, the first sub-compartment inlet regulating valve, the second sub-compartment inlet regulating valve, the first sub-compartment outlet regulating valve, and the second sub-compartment outlet regulating valve are open, or the second sub-compartment inlet regulating valve, the third sub-compartment inlet regulating valve, the second sub-compartment outlet regulating valve, and the third sub-compartment outlet regulating valve are open; this can cover 65% to 85% of the system's regulated air volume.

[0040] When the system's circulating air volume is at full load, the first inlet regulating valve, the second inlet regulating valve, the third inlet regulating valve, the first outlet regulating valve, the second outlet regulating valve, and the third outlet regulating valve are all open, which can cover 85%-100% of the system's regulating air volume, enabling the multi-tube dust collector to efficiently remove dust under different operating conditions and air volume.

[0041] Under low-load conditions, when the return air volume of the circulating fan is lower than the demand of the sintering trolley surface, the circulating fan outlet flow meter detects the air volume and feeds it back to the control system. Based on the air volume demand, the control system activates the pre-dust collector air supply valve to provide supplementary air, and monitors the supplementary air volume through the supplementary air flow meter. Simultaneously, it adjusts the regulating valves within the multi-tube dust collector to create several compartments, ensuring that the air intake volume of the cyclones in each compartment is within the rated range, maintaining dynamic balance of the flue gas, and guaranteeing efficient operation of the dust collector.

[0042] During the design and selection process, the circulating fan and multi-tube dust collector are matched according to the rated circulating flue gas volume to ensure 100% synchronous operation with the sintering machine. The operating temperature of the dust collector in the system is set at 200-300℃, the operating pressure is approximately -18000Pa, the processing air volume is approximately 9000m³ / min, and the dust removal efficiency is ≥90%.

[0043] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. An air makeup adjustment device for a multi-tube dust collector, characterized by, The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector.

2. The air regulation damper for a multiple tube dust collector according to claim 1, wherein The application relates to a kind of air supply adjusting devices for multi-tube dust collector.

3. The air regulation damper for a multiple tube dust collector according to claim 2, wherein The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting devices for multi-tube dust collector. The application relates to a kind of air supply adjusting

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