Double-bag dust collector for treating high-chlorine-content flue gas
By combining a double-bag dust collector structure with a dry reactor, the reaction time between flue gas and reagents is extended, solving the problem of low purification efficiency of high-chlorine flue gas and achieving efficient acid removal and dust removal effects.
Patent Information
- Application Number
- CN202520100451.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-01-16
AI Technical Summary
Existing baghouse dust collectors have low purification efficiency when dealing with flue gas containing high levels of chlorine, and are unable to effectively remove acidic substances from the flue gas.
The system employs a dual-bag dust collector structure, combining the first and second bag dust collectors with a dry reactor to extend the reaction time between the flue gas and the deacidification agent, enabling multiple reactions to improve purification efficiency.
It significantly improved the acid removal efficiency of high-chlorine flue gas, reaching over 97%, and the dust removal efficiency reached over 99.999%, thus significantly enhancing the purification effect.
Smart Images
Figure CN223747176U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of cloth bag dust catcher, especially to a double cloth bag dust catcher for treating high-chlorine flue gas. BACKGROUND
[0002] The flue gas after high-chlorine waste liquid incineration contains high-acidity HCl, so the treatment of high-chlorine flue gas should consider neutralizing and decomposing the acidic substances in the chlorine-containing waste gas to purify the chlorine-containing flue gas. The existing cloth bag dust collector can only achieve good dust removal effect on dust-containing flue gas, and the efficiency of purifying chlorine-containing flue gas is low. SUMMARY
[0003] In view of the above-mentioned deficiencies of the existing cloth bag dust collector, the utility model provides a double cloth bag dust collector for treating high-chlorine flue gas, which can effectively increase the reaction time of chlorine-containing flue gas and reagent in the cloth bag dust collector by using the deacidification reaction of the cloth bag dust collector, thereby improving the reaction efficiency.
[0004] To achieve the above-mentioned purpose, the embodiments of the utility model adopt the following technical solutions:
[0005] A double cloth bag dust collector for treating high-chlorine flue gas, comprising a first cloth bag dust collector, a first dry reactor connected to one side of the first cloth bag dust collector, a second dry reactor connected to the other side of the first cloth bag dust collector, a second cloth bag dust collector connected to the second dry reactor, a flue gas inlet provided at the lower end of the first dry reactor, and a flue gas outlet provided at one side of the second cloth bag dust collector, wherein the flue gas outlet is connected to a flue gas treatment reactor, and the first cloth bag dust collector and the second cloth bag dust collector simultaneously deacidify and remove dust from the high-chlorine flue gas.
[0006] According to one aspect of the utility model, a plurality of ash hoppers are provided on the second cloth bag dust collector.
[0007] According to one aspect of the utility model, the number of ash hoppers is four.
[0008] According to one aspect of the utility model, a support frame is provided between the longitudinally adjacent ash hoppers.
[0009] According to one aspect of the utility model, the cross section of the support frame is in the shape of "Y".
[0010] According to one aspect of the utility model, a plurality of gas pockets for supplying gas are provided at the top of the first cloth bag dust collector and the second cloth bag dust collector.
[0011] According to one aspect of the utility model, the first dry reactor comprises an inner tube arranged vertically and an outer tube arranged at the top of the inner tube.
[0012] According to one aspect of the present invention, the top of the inner tube and the top of the outer tube are connected.
[0013] According to one aspect of the present invention, the bottom of the second bag filter is provided with a support.
[0014] According to one aspect of the present invention, the bracket includes two symmetrically arranged brackets.
[0015] The advantages of this utility model are: by utilizing the first bag filter and the second bag filter, the deacidification reaction of high chlorine flue gas is accelerated, and the high chlorine flue gas can be simultaneously treated with dust removal and deacidification, thus effectively improving the reaction efficiency. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Fig. 1 This is a schematic diagram of the structure of this utility model;
[0018] Fig. 2 This is a schematic diagram of the structure of the second bag filter of this utility model.
[0019] 1. First bag filter; 11. Air manifold; 2. First dry reactor; 21. Inner tube; 22. Outer tube; 3. Second dry reactor; 4. Second bag filter; 41. Support frame; 5. Flue gas outlet; 6. Ash hopper; 7. Support frame; 8. Flue gas inlet. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Example 1:
[0022] like Figs. 1-2As shown, a double-bag dust collector for treating high-chlorine-containing flue gas comprises a first bag dust collector 1, a first dry reactor 2 connected to one side of the first bag dust collector 1, a second dry reactor 3 connected to the other side of the first bag dust collector 1, a second bag dust collector 4 connected to the second dry reactor 3 and in communication with the second dry reactor 3, a flue gas inlet 8 provided at the lower end of the first dry reactor 2, and a flue gas outlet 5 provided at one side of the second bag dust collector 4 and connected to a flue gas treatment reactor. The first bag dust collector 1 and the second bag dust collector 4 are used to simultaneously deacidify and remove dust from the high-chlorine-containing flue gas. For the treatment of hazardous waste high-chlorine-containing flue gas, a dry reactor is usually provided to ensure that the flue gas reacts with the deacidification reagent in the reactor for a certain period of time. The bag dust collector also has a certain deacidification reaction effect. Therefore, by using the first bag dust collector 1 and the second bag dust collector 4, the deacidification reaction of the high-chlorine-containing flue gas can be accelerated, and the high-chlorine-containing flue gas can be simultaneously deacidified and dust-removed, thereby effectively improving the reaction efficiency.
[0023] In use, the high-chlorine-containing flue gas enters the first dry reactor 2, deacidification reagents are added to the first dry reactor 2, and the flue gas reacts with the deacidification reagents for more than 2 seconds. After the reaction, the flue gas enters the first bag dust collector 1 for further reaction. After deacidification and dust removal, the flue gas enters the second dry reactor 3, deacidification reagents are added to the second dry reactor 3, and the flue gas that has not been completely removed in the front end reacts with the deacidification reagents again. After the reaction, the flue gas enters the second bag dust collector 4 for further reaction. After deacidification and dust removal, the flue gas enters the rear-end flue gas treatment reactor. When the over-spray coefficient of the reagent is controlled at about 1.1, the deacidification efficiency of the flue gas can reach more than 97%, and the dust removal efficiency of the bag can reach more than 99.999%.
[0024] In actual application, the first dry reactor 2 comprises an inner pipe 21 arranged vertically and an outer pipe 22 arranged outside the inner pipe 21.
[0025] In actual application, the top of the inner pipe 21 and the top of the outer pipe 22 are in communication for dispersing the flue gas.
[0026] In actual application, the bottom of the inner pipe 21 is provided with a Venturi tube for protecting the filter bag in the first bag dust collector 1.
[0027] In actual application, the top of the first bag dust collector 1 and the top of the second bag dust collector 4 are each provided with a plurality of air pockets 11 for supplying air.
[0028] In actual application, the bottom of the second bag dust collector 4 is provided with a support 41.
[0029] In actual application, the support 41 comprises two symmetrically arranged supports 41. The symmetric arrangement provides stability to the overall structure.
[0030] The utility model discloses a beneficial effect: through double cloth bag dust collector processing high chlorine content flue gas, can effectively increase chlorine content flue gas and reagent's reaction time in cloth bag dust collector, improve reaction efficiency.
[0031] Embodiment 2:
[0032] As Figs. 1-2 The utility model discloses a double cloth bag dust collector of processing high chlorine content flue gas, including first cloth bag dust collector 1, first cloth bag dust collector 1 one side is connected with first dry reactor 2, first cloth bag dust collector 1 opposite side is connected with second dry reactor 3, and second dry reactor 3 is connected with second cloth bag dust collector 4 that communicates with second dry reactor 3, and first cloth bag dust collector 1 left side is equipped with the air inlet that communicates with first dry reactor 2, and first cloth bag dust collector 1 right side is equipped with the gas outlet that communicates with second dry reactor 3, and first cloth bag dust collector 1 is connected with flue gas treatment reactor, and the second cloth bag dust collector 4 is equipped with a plurality of ash bucket 6, and the support frame 7 is equipped between the ash bucket 6 of longitudinal adjacent. Through support frame 7 improves the structural stability.
[0033] When using, high chlorine content flue gas enters first dry reactor 2, adds deacidification reagent in first dry reactor 2, considers reaction time 2s above, and after flue gas and deacidification reagent react, further reaction is carried out into first cloth bag dust collector 1, after dust removal and deacidification, enters second dry reactor 3, adds deacidification reagent in second dry reactor 3, and after the chlorine content flue gas that is not removed completely in the front end and deacidification reagent react again, further reaction is carried out into second cloth bag dust collector 4, after dust removal and deacidification, enters the rear end flue gas treatment reactor. High chlorine content flue gas reacts under this process, when the over spray coefficient of reagent is controlled at about 1.1, the deacidification efficiency of flue gas can reach 97% or more, and the dust removal efficiency of cloth bag can reach 99.999% or more.
[0034] In practical application, the number of ash bucket 6 is four.
[0035] In practical application, the section of support frame 7 is "Y" type. The pressure between ash bucket 6 is dispersed through "Y" type.
[0036] In practical application, first dry reactor 2 includes the inner tube 21 that sets up vertically and the outer tube 22 that is sleeved on the outer portion of inner tube 21.
[0037] In practical application, the top of inner tube 21 and the top of outer tube 22 are communicated and set up. For dispersing flue gas.
[0038] In practical application, the bottom of inner tube 21 is provided with a venturi. Through the venturi, the filter bag in first cloth bag dust collector 1 is protected.
[0039] In practical application, the top of first cloth bag dust collector 1 and second cloth bag dust collector 4 is equipped with a plurality of gas pocket 11 for gas supply.
[0040] In practical application, the bottom of the second cloth bag dust collector 4 is provided with a support 41.
[0041] In practical application, the support 41 comprises two symmetrically arranged supports 41. The symmetric arrangement provides stability for the overall structure.
[0042] The utility model discloses the beneficial effect has: through double cloth bag dust collector processing high chlorine-containing flue gas, can effectively increase chlorine-containing flue gas and reagent's reaction time in cloth bag dust collector, improves reaction efficiency.
[0043] The above is only the specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of the change or replacement within the utility model disclosed technical range, and all should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be the protection scope of the claims.
Claims
1. A double baghouse for treating high chlorine content flue gases, comprising a first baghouse (1), characterized in that, The first bag dust collector (1) is connected with a first dry reactor (2) on one side, and connected with a second dry reactor (3) on the other side, the second dry reactor (3) is connected with a second bag dust collector (4) in communication with the second dry reactor (3), the lower end of the first dry reactor (2) is provided with a flue gas inlet (8), one side of the second bag dust collector (4) is provided with a flue gas outlet (5), the flue gas outlet (5) is connected with a flue gas treatment reactor, and the high-chlorine flue gas is simultaneously deacidified and dedusted by the first bag dust collector (1) and the second bag dust collector (4).
2. The double baghouse for treating high chlorine content flue gas according to claim 1, characterized in that, A plurality of ash hoppers (6) are arranged on the second bag dust collector (4).
3. The double baghouse for treating high chlorine content flue gas according to claim 2, characterized in that, The number of the ash hoppers (6) is four.
4. The double baghouse for treating high chlorine content flue gas according to claim 2, wherein Support frames (7) are arranged between any two longitudinally adjacent ash hoppers (6).
5. The double baghouse for treating high chlorine content flue gas according to claim 4, characterized in that, The cross section of the support frame (7) is in the shape of "Y".
6. The double baghouse for treating high chlorine content flue gas as claimed in claim 1 wherein, A plurality of air bags (11) for air supply are arranged at the top of the first bag dust collector (1) and the second bag dust collector (4).
7. The double baghouse for treating high chlorine content flue gas as claimed in claim 1 wherein, The first dry reactor (2) comprises an inner tube (21) arranged vertically and an outer tube (22) arranged at the top of the inner tube (21).
8. The double baghouse for treating high chlorine content flue gas according to claim 7, characterized in that, The top of the inner tube (21) and the top of the outer tube (22) are in communication.
9. The double baghouse for treating high chlorine content flue gas according to any one of claims 1 to 8, characterized in that, A support (41) is arranged at the bottom of the second bag dust collector (4).
10. The double baghouse for treating high chlorine content flue gas according to claim 9, characterized in that, The support (41) comprises two symmetrically arranged supports (41).