Ultra-low emission particulate matter trapping device

Abstract

The utility model relates to the technical field of particulate matter trapping devices, and discloses an ultra-low emission particulate matter trapping device which comprises a reaction cylinder, pretreatment assemblies are symmetrically arranged on the two sides of the reaction cylinder, an electrostatic dust collection mechanism is installed on the other side of the reaction cylinder, and a driving assembly is arranged in the center of the top of the reaction cylinder. Cloth bag dust removal assemblies are arranged on the two sides of the driving assembly, the bottom of the reaction cylinder is fixedly connected with a particulate matter discharging opening, a valve is arranged on the side wall of the particulate matter discharging opening, the pretreatment assembly comprises a waste gas inlet, and the waste gas inlet is connected with a gas supply pipeline through a flange connecting disc. According to the utility model, waste gas is pretreated through the filter cartridge, large particles are preliminarily filtered, and ionized particles are adsorbed by the charge trapping plate and discharged. The pretreated flue gas enters a filter bag through a conveying pipeline to further filter fine particles, and the ultra-low emission standard is achieved. And the filter bag adopts a modular design and is convenient to disassemble, replace and clean.

Description

TECHNICAL FIELD

[0001] The utility model relates to particulate matter trapping device technical field especially relates to a kind of ultra-low emission particulate matter trapping device. BACKGROUND

[0002] In industrial production process, especially in metallurgy, chemical industry, thermal power generation, garbage incineration and building material industries, often there will be particulate matter containing exhaust gas. These particulate matters not only include larger diameter dust particles, but also contain fine PM10 and PM2.5 particles. If these particulate matters are not effectively treated and directly discharged, not only will cause serious pollution to the atmospheric environment, but also may endanger human health, become one of the main causes of haze and air pollution.

[0003] At present, particulate matter trapping device is mainly divided into mechanical dust removal, electrostatic dust removal and cloth bag dust removal three ways. Among them, electrostatic dust removal uses high-voltage electric field to ionize exhaust particulate matter, so that it is adsorbed by electrode plate after being charged, with the characteristics of high efficiency in treating large particles; cloth bag dust removal filters the fine particulate matter in flue gas through high-efficiency filter bag, which is an ideal way to remove PM2.5 and other fine particles.

[0004] However, the prior art in the aspect of exhaust particulate matter trapping still has the following defects and deficiencies: first, the existing particulate matter trapping device generally lacks effective pretreatment of large particles, and the larger particles contained in the exhaust gas directly enter the electrostatic dust removal or cloth bag dust removal module, which can easily cause the dust removal equipment to be blocked and the operation burden to be too heavy, affecting the processing efficiency. Secondly, the electrostatic dust removal and cloth bag dust removal modules in the prior art usually operate independently and do not form a synergistic effect, making it difficult to simultaneously and efficiently treat large particles and fine particles. Thirdly, the installation and maintenance of cloth bag dust removal device are not convenient, the fixing method of filter bag is complex and unstable, and the disassembly and replacement are time-consuming and labor-consuming, which is not conducive to the long-term and efficient operation of the equipment.

[0005] In view of the above problems, an ultra-low emission particulate matter trapping device is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0006] In order to make up for the above shortcomings, the utility model provides an ultra-low emission particulate matter trapping device, which aims to solve the problems of lack of effective pretreatment, insufficient synergistic effect of electrostatic dust removal and cloth bag dust removal, and inconvenient installation and maintenance of cloth bag dust removal module in the prior art.

[0007] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of ultra-low emission particulate matter trapping device, including reaction cylinder, the two sides of the reaction cylinder symmetrically are provided with pretreatment component, the other side of the reaction cylinder is equipped with electrostatic precipitation mechanism, the top center of the reaction cylinder is provided with driving assembly, the two sides of the driving assembly are provided with cloth bag dust removal component, the bottom of the reaction cylinder is fixedly connected with particulate matter discharge port, valve is provided on the sidewall of the particulate matter discharge port;

[0008] The pretreatment component includes an exhaust inlet, the exhaust inlet is connected with a gas supply pipeline through a flange connecting disc, and a filter cartridge is arranged between the two.

[0009] As a further description of the above technical solution:

[0010] The electrostatic precipitation mechanism includes an electric control box and an electrode plate, the electric control box is fixedly connected to the sidewall of the reaction cylinder, three electric wires are connected inside the electrostatic precipitation mechanism, the electrode plate is located inside the reaction cylinder near the exhaust inlet, and the electric wires penetrate the sidewall of the exhaust inlet and are electrically connected with the electrode plate.

[0011] As a further description of the above technical solution:

[0012] The electric control box delivers high-voltage negative electrons to the outer surfaces of the two electrode plates through the two electric wires, and delivers positive high-voltage to the particle capture assembly through the other electric wire.

[0013] As a further description of the above technical solution:

[0014] The particle capture assembly includes a capture plate and a plurality of charge capture plates, a plurality of T-shaped grooves are formed around the inside of the capture plate, a plurality of charge capture plates are installed inside the T-shaped grooves, and a plurality of vertical grooves are formed on the two sides of the outside of the charge capture plates.

[0015] As a further description of the above technical solution:

[0016] The driving assembly includes a driving motor, a housing and an exhaust fan, the driving motor is fixedly connected to the top of the housing, the output shaft of the driving motor is fixedly connected to the inside of the exhaust fan, and the exhaust fan is located inside the housing.

[0017] As a further description of the above technical solution:

[0018] The bottom of the housing is connected with the inside of the reaction cylinder, and transport pipelines are installed on the two sides of the housing.

[0019] As a further description of the above technical solution:

[0020] The cloth bag dust removal assembly comprises a filter bag, a connecting part is arranged on one side of the filter bag close to the conveying pipeline, the connecting part is sleeved on the outer side of the conveying pipeline, a limiting groove is formed on the outer side of the conveying pipeline, and a plurality of T-shaped blocks are arranged around the limiting groove.

[0021] Further description of the above technical scheme is as follows:

[0022] A plurality of through holes are formed in the connecting part, and the protruding blocks are clamped in the through holes.

[0023] The utility model has the advantages of the following beneficial effects:

[0024] 1. In the utility model, a filter cartridge is arranged at the waste gas inlet, a plurality of filter screens inside the filter cartridge are used to preliminarily filter large solid particles in the waste gas, the burden of the subsequent treatment module is reduced, and the overall dust removal efficiency is improved. The end part of the filter cartridge is provided with a threaded structure, so that the sealing property is ensured and the filter cartridge is convenient to disassemble and maintain. After the flue gas is pretreated, the flue gas enters the reaction cylinder, the particles are subjected to negative ionization by the electrode plate, and the particles are charged. An exhaust fan driven by a motor is arranged at the top of the reaction cylinder, a negative pressure environment is formed, the flue gas flowability is enhanced, and the contact efficiency of the particles and the electrode is improved. The ionized particles are attracted by the positive charge capturing plate and gathered on the outer surface of the positive charge capturing plate, the particles slide down along the vertical grooves on the capturing plate, and finally, the particles are discharged through the particle discharge port and enter a special solid particle collector, so that the particles can be used as resources in the future.

[0025] 2. In the utility model, the particle diameter of the flue gas after ionization and pretreatment is significantly reduced, the flue gas is introduced into the conveying pipeline by the exhaust fan, a filter bag is arranged in the pipeline, the filter bag is used to further capture the remaining small particles, the flue gas purification effect is improved, and the ultra-low emission standard is achieved. The filter bag is connected to the conveying pipeline through a primary and secondary buckle, and the filter cartridge is designed to be modular, so that the filter cartridge is convenient to disassemble, replace or clean, the equipment maintenance cost is reduced, and the operation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A three-dimensional schematic view of the ultra-low emission particle capturing device is provided in the utility model;

[0027] Figure 2 A structure schematic view of the control box of the ultra-low emission particle capturing device is provided in the utility model;

[0028] Figure 3 A structure schematic view of the filter cartridge of the ultra-low emission particle capturing device is provided in the utility model;

[0029] Figure 4The utility model provides a kind of electrode plate's structural schematic diagram of ultra-low emission particulate matter trapping device proposed by the utility model;

[0030] Figure 5 The utility model provides a kind of exhaust fan's structural schematic diagram of ultra-low emission particulate matter trapping device proposed by the utility model;

[0031] Figure 6 The utility model provides a kind of charge capture plate's structural schematic diagram of ultra-low emission particulate matter trapping device proposed by the utility model;

[0032] Figure 7 The utility model provides a kind of connecting portion's structural schematic diagram of ultra-low emission particulate matter trapping device proposed by the utility model;

[0033] Figure 8 The utility model provides a kind of protruding block's structural schematic diagram of ultra-low emission particulate matter trapping device proposed by the utility model.

[0034] Legend:

[0035] 1, reaction cylinder;2, pretreatment assembly;21, waste gas inlet;22, flange connecting disc;23, filter cartridge;3, particulate material discharge port;4, valve;5, driving assembly;51, driving motor;52, shell;53, exhaust fan;54, transport pipeline;6, bag filter assembly;61, filter bag;62, connecting portion;63, T-shaped block;64, protruding block;65, limiting groove;7, electrostatic precipitation mechanism;71, control box;72, electric wire;73, electrode plate;74, particulate capture assembly;741, capture plate;742, charge capture plate;743, vertical groove;744, T-shaped groove. DETAILED DESCRIPTION

[0036] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model below, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the utility model.

[0037] Reference Figure 1 - Figure 6The utility model provides an embodiment: a kind of ultra-low emission particulate matter trapping device, pre-treatment assembly 2 is symmetrically arranged on the both sides of reaction cylinder 1, for carrying out preliminary treatment to the entering exhaust gas, reduce particulate matter concentration, improve overall trapping efficiency.Pre-treatment assembly 2 includes exhaust gas inlet 21, exhaust gas inlet 21 is connected with gas pipeline by flange connecting disc 22, flange connecting disc 22 adopts high sealing material, ensure the stability and no leakage of exhaust gas flow.The filter cartridge 23 is arranged between exhaust gas inlet 21 and gas pipeline, the end of filter cartridge 23 is provided with screw thread, it is convenient to disassemble and replace maintenance, multiple filter screens are arranged side by side in filter cartridge 23, for efficiently filtering large particles in exhaust gas, reduce the operating load of subsequent processing module, improve the reliability of equipment operation.The top center of reaction cylinder 1 is provided with drive assembly 5, for guiding exhaust gas flow by negative pressure.Drive assembly 5 includes drive motor 51, shell 52 and exhaust fan 53, drive motor 51 is fixedly connected at the top of shell 52, and its output shaft is fixedly connected inside exhaust fan 53, drives exhaust fan 53 to operate, exhaust fan 53 is located inside shell 52, forms negative pressure environment by high-speed rotation, improves the stability of exhaust gas flow and particulate matter trapping efficiency.The bottom of shell 52 is connected with the inside of reaction cylinder 1, and it is ensured that exhaust gas enters reaction cylinder 1 without obstruction, while the two sides of shell 52 are both installed with transport pipeline 54, transport pipeline 54 adopts high-temperature-resistant and corrosion-resistant material, further guide exhaust gas to flow to bag dust removal module.The other side of reaction cylinder 1 is installed with electrostatic precipitation mechanism 7, for carrying out electrostatic treatment to particulate matter in exhaust gas.Electrostatic precipitation mechanism 7 includes control electricity box 71 and electrode plate 73, control electricity box 71 is fixedly connected on the side wall of reaction cylinder 1, and high-voltage power supply is integrated inside control electricity box 71 for providing stable voltage.Three electric wires 72 are connected inside electrostatic precipitation mechanism 7 for transmitting high-voltage current, electrode plate 73 is located inside reaction cylinder 1 close to exhaust gas inlet 21, and is electrically connected between the side wall of exhaust gas inlet 21 and electrode plate 73 by electric wire 72 penetrating through exhaust gas inlet 21.Two electric wires 72 of control electricity box 71 respectively deliver high-voltage negative electrode to the outer surface of two electrode plates 73, form negative ionization effect, so that particulate matter in exhaust gas is electrified, while another electric wire 72 inputs positive high-voltage to particulate capture assembly 74.Particulate capture assembly 74 includes capture plate 741 and multiple charge capture plates 742, multiple T-shaped grooves 744 are arranged around inside capture plate 741 for fixing charge capture plates 742, multiple charge capture plates 742 are installed inside multiple T-shaped grooves 744 respectively, multiple vertical grooves 743 are arranged on the both sides of the outside of charge capture plates 742, vertical groove 743 is designed to guide electrified particulate matter to converge and slide down, finally enter particulate matter discharge port 3 by gravity.The bottom of the reaction cylinder 1 is fixedly connected with a particulate matter discharge port 3, a valve 4 is arranged on the side wall of the particulate matter discharge port 3, the valve 4 is used for controlling the discharge of particulate matter, and the particulate matter can be discharged quantitatively according to needs and collected to a solid particulate matter collector, so that subsequent resource utilization or harmless treatment is facilitated. Through the synergistic effect of pretreatment, electrostatic dust removal and particle capture, combined with reasonable negative pressure driving design, efficient capture of particulate matter in waste gas is realized, the ultra-low emission requirement is met, and the environmental protection demand of various industrial fields is met.

[0038] With reference to Figures 7-8 The utility model provides a kind of ultra-low emission particulate matter capture device, the two sides of driving assembly 5 are provided with bag filter assembly 6, for further filtering small particulate matter in waste gas, reach ultra-low emission effect.Bag filter assembly 6 includes filter bag 61, filter bag 61 is made of high efficiency filter material, with excellent particulate matter retention capacity, while having high temperature resistance, corrosion resistance and other characteristics, to adapt to various industrial waste gas treatment scene.Filter bag 61 is provided with connecting portion 62 on the side close to transport pipeline 54, and the connecting portion 62 is designed as a sleeve structure.In order to further enhance the fixing effect, the outer side of transport pipeline 54 is provided with limiting groove 65, and the limiting groove 65 is designed in a surrounding manner to ensure the stability of filter bag 61 on transport pipeline 54, while facilitating the quick disassembly and assembly of filter bag 61.A plurality of T-shaped blocks 63 are installed in the limiting groove 65, and the T-shaped blocks 63 are designed to be spaced apart to realize uniformity of the fixing effect.Each T-shaped block 63 is fixedly connected with lug 64 on the side opposite to each other, and a plurality of through holes are uniformly arranged in the connecting portion 62, and the lug 64 is matched with the through holes in the connecting portion 62 by clamping to further stabilize the position of filter bag 61.The through holes and lugs 64 are accurately connected, and the clamping structure ensures the quickness and reusability of filter bag 61 installation, while facilitating subsequent disassembly, replacement or cleaning operation.The design of bag filter assembly 6 fully considers the actual application demand of the device, which not only ensures the filtering effect, but also improves the convenience of modular maintenance, suitable for efficient capture of fine particulate matter in industrial waste gas.Filter bag 61 needs to be maintained by regular cleaning or replacement in long-term use, and the optimized design of transport pipeline 54 and limiting groove 65 realizes efficient and stable operation of the device as a whole, while having economy and environmental performance, meeting the current stringent environmental standards and the needs of multi-field industrial applications.

[0039] Working principle: the exhaust gas enters the pretreatment assembly 2 through the exhaust gas inlet 21, first passes through the filter cartridge 23 composed of multiple filter screens, the threaded end of the filter cartridge 23 facilitates sealing and disassembly, and the larger particles in the exhaust gas are preliminarily filtered in this process to reduce the subsequent processing load. After pretreatment, the exhaust gas enters the electrostatic dust removal mechanism 7 through the reaction cylinder 1, the electrostatic dust removal mechanism 7 includes a control box 71 and two groups of electrode plates 73, the control box 71 supplies high-voltage negative electrons to the outer surface of the electrode plates 73 through two wires 72, so that the particles in the exhaust gas are negatively charged, and at the same time, a positive high voltage is input to the particle capture assembly 74 through another wire 72, the particle capture assembly 74 is composed of a capture plate 741 and multiple charge capture plates 742, the charged particles are attracted and gathered to the outer surface of the charge capture plates 742, and then slide down along the multiple vertical grooves 743 on the charge capture plates 742, and finally are discharged through the particle discharge port 3 at the bottom of the reaction cylinder 1, and then enter the dedicated solid particle collector through the valve 4. At the same time, the exhaust gas after electrostatic dust removal is guided into the conveying pipeline 54 under the action of the negative pressure formed by the driving assembly 5, the driving assembly 5 includes a driving motor 51, a housing 52 and an exhaust fan 53, the driving motor 51 drives the exhaust fan 53 to rotate at high speed, and a stable airflow negative pressure environment is formed in the housing 52 and the conveying pipeline 54, so that the exhaust gas flows smoothly. The exhaust gas enters the bag dust removal assembly 6, wherein the filter bag 61 is sleeved on the outside of the conveying pipeline 54 through the connecting part 62, multiple T-shaped blocks 63 are installed around the limiting groove 65 on the outside of the conveying pipeline 54, and the protrusions 64 on the opposite sides of the T-shaped blocks 63 are clamped in the multiple through holes of the connecting part 62, so as to ensure the stability and sealing performance of the filter bag 61. The filter bag 61 efficiently intercepts the small particles remaining in the exhaust gas, so that the exhaust gas meets the ultra-low emission standard, and finally clean air is discharged through the exhaust fan 53. The device cooperates the pretreatment assembly 2, the electrostatic dust removal mechanism 7, the particle capture assembly 74 and the bag dust removal assembly 6 to effectively capture particles of different sizes in the exhaust gas, and realizes efficient, environmentally friendly and economical industrial exhaust gas particle control as a whole.

[0040] Finally, it should be pointed out that: the above only describes preferred embodiments of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacement for some technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An ultra-low emission particulate trap device comprising a reaction cartridge (1), characterised in that: The reaction cylinder (1) is symmetrically provided with a pretreatment assembly (2) on both sides, an electrostatic dust removal mechanism (7) is installed on the other side of the reaction cylinder (1), a driving assembly (5) is arranged at the top center of the reaction cylinder (1), bag dust removal assemblies (6) are arranged on both sides of the driving assembly (5), and a particulate matter discharge port (3) is fixedly connected to the bottom of the reaction cylinder (1), and a valve (4) is arranged on the sidewall of the particulate matter discharge port (3); The pretreatment assembly (2) comprises a waste gas inlet (21), the waste gas inlet (21) is connected with a gas feeding pipeline through a flange connecting disc (22), and a filter cartridge (23) is arranged between the waste gas inlet (21) and the gas feeding pipeline, the filter cartridge (23) is provided with threads at the end, and a plurality of filter screens are arranged side by side in the filter cartridge (23).

2. An ultra-low emission particulate matter trap according to claim 1, wherein: The electrostatic dust removal mechanism (7) comprises a control box (71) and an electrode plate (73), the control box (71) is fixedly connected to the sidewall of the reaction cylinder (1), three wires (72) are connected to the inside of the electrostatic dust removal mechanism (7), the electrode plate (73) is located inside the waste gas inlet (21) close to the reaction cylinder (1), and the wires (72) penetrate through the sidewall of the waste gas inlet (21) and are electrically connected with the electrode plate (73).

3. An ultra-low emission particulate matter trap according to claim 2, wherein: The control box (71) transmits high-voltage negative electrons to the outer surfaces of the two electrode plates (73) through the two wires (72), and the control box (71) inputs positive high voltage to the particle capture assembly (74) through the other wire (72).

4. An ultra-low emission particulate matter trap according to claim 3, wherein: The particle capture assembly (74) comprises a capture plate (741) and a plurality of charge capture plates (742), a plurality of T-shaped grooves (744) are arranged around the inside of the capture plate (741), a plurality of charge capture plates (742) are respectively arranged in the T-shaped grooves (744), and a plurality of vertical grooves (743) are arranged on the two sides of the outside of the charge capture plates (742).

5. The ultra-low emission particulate matter trapping device of claim 1, wherein: The driving assembly (5) comprises a driving motor (51), a shell (52) and an exhaust fan (53), the driving motor (51) is fixedly connected to the top of the shell (52), the output shaft of the driving motor (51) is fixedly connected to the inside of the exhaust fan (53), and the exhaust fan (53) is located in the inside of the shell (52).

6. An ultra-low emission particulate matter trap according to claim 5, wherein: The bottom of the shell (52) is connected with the inside of the reaction cylinder (1) in a penetrating manner, and the two sides of the shell (52) are respectively provided with a conveying pipeline (54).

7. An ultra-low emission particulate matter trap according to claim 6, wherein: The bag dust removal assembly (6) comprises a filter bag (61), the filter bag (61) is provided with a connecting portion (62) on the side close to the conveying pipeline (54), the connecting portion (62) is sleeved on the outside of the conveying pipeline (54), a limiting groove (65) is formed on the outside of the conveying pipeline (54), a plurality of T-shaped blocks (63) are arranged around the inside of the limiting groove (65), and the two sides of the T-shaped blocks (63) are respectively fixedly connected with a protruding block (64).

8. An ultra-low emission particulate matter trap according to claim 7, wherein: A plurality of through holes are formed in the inside of the connecting portion (62), and the protruding block (64) is clamped in the through hole.

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