一、 LMC系列低压长袋脉冲袋式除尘器概述

An overview, LMC series long bag low pressure pulse bag filter

　　 LMC系列低压长袋脉冲袋式除尘器是我公司集十余年来的研究技术经验和成果，综合了目前国际上的长袋低压脉冲除尘技术而向用户推出的一种具有二十一世纪国际水平的长袋离线脉冲除尘技术产品。它不但具有脉冲喷吹除尘器的处理烟气量大、清灰能力强、除尘效率高、排放浓度低等特点，还具有除尘设备稳定可靠、能耗低、占地面积小、维修维护容易等特点，特别适合处理大风量的各种工况烟气，除尘效率≥99.98以上，排放浓度符合国家排放标准≤30mg/Nm3。

  LMC series long bag low pressure pulse bag filter is set to more than 10 years of research experience and technical results, combining the current of the best international long bag low pressure pulse dust removal technology and the launch of the user of a 21st century international level offline long bag pulse dust removal technology products. It not only has the processing of pulse injection filter smoke gas and ash removal ability, high dust removal efficiency, low emission concentration, but also has stable and reliable dust removal equipment, low energy consumption, cover an area of an area small, easy maintenance etc, especially suitable for processing large volume of flue gas under various working conditions, more than 99.98 or higher dust removal efficiency, emission concentration meet the national discharge standard latest acuities were 30 mg/Nm3.      

LMC系列长袋脉冲布袋除尘器已经在世界范围内得到广泛应用，在中国也已经大量推广。其多方面的优点逐渐为众多用户所认识，受到广泛的欢迎，已经为多个污染行业领域所采用，被国家环保列为实用技术项目，并被国家科委列为国家科技成果重点推广项目。

LMC series has long bag pulse bag filter is widely used throughout the world, in China also has a large number of promotion. Its many advantages, for many users know gradually widely popular, and has been adapted for use by multiple pollution industries, best listed by the state environmental protection practical technology projects, and by the national science and technology commission as a national key scientific and technological achievements to promote projects.

二、 LMC长袋脉冲袋式除尘器工作原理 

Second, the LMC long bag pulse bag filter working principle

　　LMC长袋脉冲袋式除尘器主要由上箱体、中箱体、灰斗、卸灰系统、喷吹系统和控制系统等几部分组成，并采用下进气分室烟气净化结构。含尘烟气由进风口经中箱体下部进入灰斗；部分较大的尘粒由于惯性碰撞、自然沉降等作用直接落入布袋除尘器灰斗，其它尘粒随气流上升进入到袋式收尘器各个滤袋室。经除尘滤袋过滤后，尘粒被阻留在除尘布袋外侧，净化后的气体由滤袋内部进入脉冲除尘器上箱体，再通过提升阀、出风口、通过引风机达标排入大气。灰斗中的粉尘定时或连续由螺旋输送机及刚性叶轮卸料器卸出。随着过滤过程的不断进行，除尘器滤袋外侧所附积的粉尘不断增加，从而导致袋布袋除尘器本身的阻力也逐渐升高。当阻力达到预先设定值时，脉冲清灰控制器发出信号，首先令一个布袋除尘器袋室的提升阀关闭以切断该室的过滤气流，然后打开电磁脉冲阀，压缩空气由气源顺序经气包、脉冲阀、喷吹管上的喷嘴以极短的时间（ 0.065～0.085秒）向除尘滤袋喷射。压缩空气在箱内高速膨胀，使滤袋产生高频振动变形，再加上逆气流的作用，使滤袋外侧所附尘饼变形脱落。在充分考虑了粉尘的沉降时间（保证所脱落的粉尘能够有效落入灰斗）后，提升阀打开，此布袋除尘器袋室滤袋恢复到过滤状态，而下一袋室则进入清灰状态，如此直到袋室清灰完毕 为一个周期。 LMC长袋脉冲袋式除尘器是由多个独立的室组成的，清灰时各室按顺序分别进行，互不干扰，实现长期连续运行。上述清灰过程均由脉冲清灰控制器进行定时或定压自动控制。

LMC long bag pulse bag filter is mainly composed of enclosure, the enclosure, ash hopper, discharge system, injection system and the control system of several parts, such as flue gas purification and adopt the inlet chamber structure. Protecting gas inlet by the cabinet bottom into the hopper; Part of the larger dust particles such as inertia collision, natural sedimentation effect directly into the bag precipitator hopper, other dust particles with the air currents to rise into the bag type dust collector filter bag chamber. After dust filter bag filter, dust particles be trapped dust bag outside, after purification, the gas inside the filter bag from the case on pulse dust catcher, valves, outlet, through ascension by induced draft fan standard atmosphere. The dust ash hopper periodic or continuous rigid impeller by screw conveyor and discharger discharge. Along with the ongoing filtering process, filter the dust filter bag outside of the attached product continues to increase, leading to the bag bag precipitator itself resistance also gradually rise. When the resistance reaches the preset values, pulse dust controller signal, first make a cloth bag dust collector bag chamber of the filtered air lift valve closed to cut off the room, and then open the electromagnetic pulse valve, compressed air by air order bullishness of package, pulse valve, spray nozzle on the torch in a very short time (0.065 ~ 0.085 seconds) to the dust filter bag. Compressed air in the high-speed expansion in the cabinet, make the filter bag produces high frequency vibration deformation, plus the role of reverse airflow, the filter bag the lateral deformation of dust cake off. In full consideration of dust settling time (dust can effectively guarantee the loss into ash hopper), lift valve is opened, the bag bag filter chamber filter bag back to the filter state, while the next bag room into dust, so until completion of the last of the ash removal For a cycle. LMC long bag pulse bag filter is composed of multiple independent room, soot cleaning the room when the order separately, noninterference, achieve long-term continuous operation. The soot cleaning process are conducted by pulse wave sootblower controller timing or constant pressure automatic control.

二、 LMC长袋脉冲袋式除尘器的基本结构 

Three, the basic structure of LMC long bag pulse bag filter

　　LMC长袋脉冲袋式除尘器的主体结构由箱体、袋室、灰斗、进出风口四大部分组成。并配有基础支柱、爬梯、栏杆、检修门、压缩空气气路系统、清灰控制系统、卸灰系统等等，并可根据用户要求选配*的除尘设备运行监测系统。 

LMC long bag pulse bag filter is the main structure by box, bag room, ash hopper, four major part into the outlet. And equipped with fundamental pillars, gym, railings, access door, gas circuit system of compressed air, dust control system, discharge system, etc., and can according to user's request matching advanced dust removal equipment operation monitoring system.

三、 LMC长袋脉冲袋式除尘器的主要性能特点 

Four, LMC main performance characteristics of long bag pulse bag filter

☆高可靠性设计，保证袋式除尘器随主机长期稳定运行，维护工作极少；

High reliability design, guarantee the bag filter with host long-term stable operation, little maintenance work

☆ 高适用性设计，袋式除尘器可适应含尘气体性质的大范围波动，并可根据用户情况做适应性非标设计；

High applicability, bag filter can be adapted to wide fluctuations in dusty gas properties, and can according to user's adaptability for non-standard design;

☆ 特殊的结构设计加上严格的滤料及零部件选用，可满足极为严格的环保要求，袋除尘器的排放可确保低于30mg/Nm 3 ；

The structure design of a special being combined with strict fabric components selection, can meet the strict requirements of environmental protection, emissions of bag filter to ensure less than 30 mg/Nm 3;

☆优化的袋式收尘器进出风道设计，有利于均匀的气流分布；

The bag type dust collector a optimization being in and out of the air duct design, is beneficial to uniform flow distribution;

☆防漏风设计，保证袋除尘器的漏风率降至（<3%）；

Air leakage prevention design, to ensure that the bag filter to minimize air leakage rate (< 3%).

☆全钢分体结构设计，便于布袋除尘设备的运输及安装，并保证布袋除尘设备的制造精度；

All steel structure design of fission, facilitate bag dust removal equipment transportation and installation, and guarantee the manufacturing accuracy of bag dust removal equipment;

☆分室脉冲三状态清灰技术，保证脉冲布袋除尘器的清灰强度及效果；

Room pulse three state ash removal technology, to ensure the best the slag discharge intensity and the effect of pulse bag filter;

☆ 脉冲布袋 除尘器停机自清系统，确保布袋除尘器始终处于工作状态；

A pulse bag is being Dust catcher self-cleaning system downtime, ensure that bag precipitator is always in the best working state;

☆ 采用袋式收尘器定阻和定时联合清灰方式及可编程控制系统（PLC）；

Do the bag type dust collector on resistance and timing joint ash removal mode and programmable control system (PLC);

☆布袋除尘器配有自动超温报警和紧急降温控制；

Bag precipitator being is equipped with automatic overtemperature alarm and emergency cooling control;

☆袋式收尘器的非线性均流静压喷管，确保喷吹均匀;

A bag type dust collector being unique nonlinear static pressure nozzle flow, ensure uniform injection;

☆全套布袋除尘器除尘系统可选独立卸灰控制系统;

A full set of bag filter dust removal system being optional independent discharge control system;

☆提供集中控制（DSC远程控制）和机旁控制两种选择； 

Do provide centralized control (DSC) remote control and local control two choices;

☆长寿命设计，主体除尘设备按照使用寿命15年以上进行设计制造； 

Long life design, the service life of the main dust removal equipment, in accordance with the design and manufacture more than 15 years;

☆低运行费用，优化的工艺参数设计，有利于袋除尘器低阻高效稳定运行，降低除尘系统能耗，同时有效减轻了除尘滤袋的损耗及维护工作； 

Low operating cost, optimize the process parameters design, help the bag filter low resistance and stable operation, reduce energy consumption of dust removal system, at the same time, effectively reduce the loss of dust filter bag and maintenance work;

☆采用高品质零部件，提高布袋除尘设备运行可靠性，减少维护工作； 

Using high quality components, improving the reliability of bag dust removal equipment, reduce maintenance work;

☆全部采用高品质的滤袋及附件，滤袋平均寿命一般超过18个月； 

Do all adopt the high quality of filter bag and accessories, filter bag life expectancy more than 18 months;

☆脉冲除尘器采用特殊灰斗设计，粉尘卸出无障碍； 

 Special ash hopper design used by pulse dust collector, dust discharge accessibility;

☆LMC低压长袋脉冲布袋除尘器标准化设计，可减少用户备品备件的储存量； 
LMC being standardized design, long bag low pressure pulse bag filter can reduce the user spare parts storage;

五、LMC低压长袋脉冲布袋除尘器选型 

Five, the LMC long bag low pressure pulse bag precipitator

1.型号说明 

1. The model shows that

2.选型参数及选型原则 

 The selection of parameters and selection principle

（1） 收尘器的主要技术参数为风量、气体温度、含尘浓度与湿度。根据工艺设计的风量、气体 温度、含尘浓度的数值，按略小于技术性能表中的数值为原则，其相对的收尘器型号，即为所 需要的收尘器型号，采用的滤料则根据入口浓度、气体温度、湿含量确定。 

(1) as the main technical parameters of the dust collector for air volume, gas temperature, concentration of dust and humidity. According to the process design of air volume, gas temperature, the highest value of dust concentration, slightly less than technical performance in the table according to the numerical value for the principle, the relative number of dust collecting ware, is the required number of dust collecting ware, the filter material is according to the inlet concentration, gas temperature, moisture content determination.

（2） 压缩空气耗量栏中，所提出的耗气量为该型号设备的耗气量。 

(2) the compressed air consumption of bar, the proposed model for the gas consumption equipment's biggest gas consumption.

（3） 当布袋除尘系统负压超过6000Pa时，如选用时，需要事先说明，以便加强壳体强度和刚度。 

(3) when the negative pressure bag dust removal system of more than 6000 pa, if choose, need instructions in advance, in order to strengthen the shell strength and stiffness.

（4） 可根据工艺需要设置收尘器灰斗卸料系统。

 (4) can be set according to the technology of dust collector hopper discharge system.

六.适用范围

6. Scope of application

炼钢电炉、锅炉、电石炉、高炉煤气净化、煤粉制备和气力输送、沥青混凝土生产、碳黑、建材、耐火、化工、铝电解、铝锌冶炼等领域。

Steelmaking furnace, boiler, calcium carbide furnace, blast furnace gas purification, coal powder preparation and pneumatic conveying, the asphalt concrete production, carbon black, building materials, refractory, chemical industry, aluminum electrolytic zinc smelting, aluminum, etc.