）焊接烟尘的治理设备 金属焊接产生的悬浮在空气中的颗粒非常小，是“可呼吸”的，并称其为焊接烟雾。这种焊接烟雾中含有气态和颗粒状态对人体有害的污染物质。治理的目的：一是使室内有害污染物的浓度小于国家强制性标准和《工作场所有害因素职业接触界限值》所规定的车间空气中焊接烟尘卫生标准（电焊烟尘醉高允许浓度为6mg/m3，铝合金焊接烟尘为4mg/m3?）；二是排向大气的污染物浓度达到国家环保要求。?由于焊烟的尘埃粒径微小，一般的过滤材质无法过滤焊接烟尘，应采用聚四氟乙烯覆膜滤筒式过滤器，采用集中式整体烟尘处理设备，脉冲反吹清灰，确保过滤精度。

）The treatment equipment for welding smoke and dust produces very small particles suspended in the air during metal welding, which are "breathable" and are called welding smoke. This welding smoke contains pollutants in both gaseous and particulate states that are harmful to human health. The purpose of governance is to make the concentration of indoor harmful pollutants lower than the national mandatory standards and the hygiene standards for welding smoke and dust in the workshop air specified in the Occupational Exposure Limits for Hazardous Factors in the Workplace (the allowable concentration of welding smoke and dust is 6mg/m3, and the allowable concentration of aluminum alloy welding smoke and dust is 4mg/m3); The second is that the concentration of pollutants discharged into the atmosphere meets national environmental protection requirements.? Due to the small particle size of welding smoke, ordinary filtering materials cannot filter welding smoke. Therefore, polytetrafluoroethylene membrane filter cartridge type filters should be used, and centralized overall smoke and dust treatment equipment should be used. Pulse back blowing is used to clean the dust, ensuring filtration accuracy.

（2）高效覆膜聚酯滤筒的性能特点 聚四氟乙烯（PTFE）覆膜聚酯滤材是一种高科技产品，它的微孔结构可在特殊条件下经机械拉伸得到，而丝毫未改变其原有特性。微孔过滤覆膜孔径可控制在0.2～0.3mm，过滤方法属于膜表面过滤。膜表面光滑又具备极佳的化学稳定性，能抗腐蚀，耐酸碱。不老化又憎水性。在过滤时膜表面截留的粉尘很容易剥落，其通气量能长时期保持在同一水平上。由于覆膜滤材是用其光滑不粘的表面截留粉尘，利用这一特性即可节约脉冲清灰系统的压缩空气量，又可避免烟尘对薄膜基布的磨损，延长了滤筒的使用寿命。同时为设备提供醉低而平稳的压降差。

(2) The performance characteristics of high-efficiency coated polyester filter cartridges are polytetrafluoroethylene (PTFE) coated polyester filter materials, which are high-tech products. Its microporous structure can be obtained through mechanical stretching under special conditions without changing its original characteristics. The pore size of the microporous filtration membrane can be controlled between 0.2-0.3mm, and the filtration method belongs to membrane surface filtration. The surface of the membrane is smooth and has excellent chemical stability, which can resist corrosion and acid and alkali. Not aging and hydrophobic. The dust trapped on the membrane surface during filtration is easily peeled off, and its ventilation capacity can be maintained at the same level for a long time. Due to the use of its smooth and non stick surface to retain dust, the use of this feature can save the compressed air volume of the pulse cleaning system and avoid the wear of the film substrate by smoke and dust, thereby extending the service life of the filter cartridge. Simultaneously providing equipment with a low and stable pressure drop difference.

车间焊烟技术除尘烟尘净化系统又被称为多工位焊接烟尘净化系统。主要由过滤单元（除尘器）、大风量吸尘风机、排风管道、电控系统、系统相关配件及操作主件组成。主要是针对焊接工位较多且紧凑、同时加工多种工序及工况较复杂的车间环境治理。主过滤单元所选用的除尘器型号主要根据多工位焊烟净化系统的具体要求来决定，具体要求包括排风管道的管径、长度尺寸；具体的操作工位数量以及需处理面积的排风风量；所处理的烟尘材料的物理及化学性能以及主过滤器、管道、电控，乃至整个除尘系统所处的环境等诸多因素。中央焊接烟尘净化系统流程说明：根据不同的工况为焊接工位设计不同的收集装置，从污染源头经收集装置进入主排风管道，这个过程会将烟气粉尘瞬间收集，保证了工作人员自身健康问题；而后经主管道进入过滤单元（除尘器），烟尘被除尘器中的滤材高度净化，烟气粉尘会在风机负压的作用在附着在滤材表面，脉冲阀控制滤材的自动清灰功能，在脉冲阀及控制程序的作用下，系统会每隔一段时间对滤材从内而外进行反吹清灰，沉流式的设计原理保证反吹过程中的颗粒物及细微粉尘落入集灰桶集中收集，收集后的颗粒粉尘需根据使用周期及烟尘量的大小定期外运清理，净化后的达标气体在风机的作用下经烟筒外排。

The workshop welding smoke technology dust removal and purification system is also known as the multi station welding smoke purification system. It mainly consists of a filtering unit (dust collector), a high air volume vacuum fan, exhaust pipes, an electrical control system, system related accessories, and operating main components. Mainly aimed at workshop environment management with multiple and compact welding workstations, simultaneous processing of multiple processes, and complex working conditions. The model of dust collector selected for the main filtration unit is mainly determined based on the specific requirements of the multi station welding smoke purification system, including the diameter and length size of the exhaust duct; The specific number of operation stations and the exhaust air volume of the area to be processed; The physical and chemical properties of the processed smoke and dust materials, as well as various factors such as the main filter, pipelines, electrical control, and even the environment in which the entire dust removal system is located. Process description of the central welding smoke and dust purification system: Different collection devices are designed for the welding station according to different working conditions. From the source of pollution, the collection device enters the main exhaust duct. This process will instantly collect the smoke and dust, ensuring the health of the workers themselves; Then, it enters the filtering unit (dust collector) through the main pipeline, and the smoke and dust are highly purified by the filter material in the dust collector. The smoke and dust will adhere to the surface of the filter material under the negative pressure of the fan. The pulse valve controls the automatic cleaning function of the filter material. Under the action of the pulse valve and control program, the system will periodically blow back the filter material from the inside out for cleaning. The design principle of the settling flow ensures that particles and fine dust during the back blowing process fall into the ash collection bucket for centralized collection. The collected particle dust needs to be regularly transported and cleaned according to the service cycle and the size of the smoke and dust. The purified standard gas is discharged through the chimney under the action of the fan.

焊接车间滤筒除尘器对焊接烟尘治理为焊接工位(补焊工位)—集尘罩—阻火器—电动调风阀—分支管路—主管路—滤筒除尘器—风机—高空排放。

The welding workshop filter cartridge dust collector controls welding smoke and dust by welding station (welding repair station) - dust collection hood - flame arrester - electric air regulating valve - branch pipeline - main pipeline - filter cartridge dust collector - fan - high-altitude discharge.

焊接车间滤筒除尘器流程说明：

Process description of filter cartridge dust collector in welding workshop:

焊接产生的烟气首先经过集尘罩进行收集，集尘罩前端设置阻火器目的为防止火花进入管道造成起火，阻火器过后有风量调节阀门，通过阀门后经采用渐变管径(平衡管路末端的风量风速)进入主管路，后通过旁插式滤筒除尘器，烟气废气在滤筒除尘器中被净化滤筒阻拦，部分大颗粒在重力的作用下掉落至灰斗，一小部分细小颗粒附着与滤筒表面，脉冲阀在PLC的控制下通过时间(压力控制)，定时或者定压对滤筒内外进行喷吹清灰，反吹过程中微小的颗粒会掉入灰斗后进入收集筒，洁净的空气在离心风机的作用下高空排出。

The smoke generated by welding is first collected through a dust collection hood. A flame arrester is installed at the front end of the dust collection hood to prevent sparks from entering the pipeline and causing a fire. After the flame arrester, there is an air volume adjustment valve. After passing through the valve, it enters the main pipeline through a gradient pipe diameter (balancing the air volume and wind speed at the end of the pipeline), and then passes through a side inserted filter cartridge dust collector. The smoke and waste gas are blocked by the purification filter cartridge in the filter cartridge dust collector, and some large particles fall into the ash hopper under the action of gravity. A small portion of small particles adhere to the surface of the filter cartridge. The pulse valve is controlled by PLC through time (pressure control), timing or constant pressure to spray and clean the inside and outside of the filter cartridge. During the back blowing process, small particles will fall into the ash hopper. After entering the collection cylinder, clean air is discharged from high altitude under the action of a centrifugal fan.

焊接车间滤筒除尘器技术特点：

Technical characteristics of filter cartridge dust collector in welding workshop:

此设备采用自动清灰形式，选用PLC自动清灰系统，设备进出口设有压差变送器，可根据时间或设备自身压力变化进行清灰，达到节省压缩空气消耗量的目的。

This equipment adopts an automatic ash cleaning form, using a PLC automatic ash cleaning system. The equipment is equipped with pressure differential transmitters at the inlet and outlet, which can clean the ash according to time or the pressure changes of the equipment itself, achieving the goal of saving compressed air consumption.

喷吹顺序从上到下，逐行喷吹每个滤筒均配有一个脉冲阀，每个滤筒清灰效果好。

The spraying sequence is from top to bottom, and each filter cartridge is equipped with a pulse valve for row by row spraying. Each filter cartridge has a good cleaning effect.

采用阻燃滤筒耐温150℃，滤筒表面采用PTFE覆膜技术，采用旁插式插入，每个滤筒均有拆卸口，且除尘器下方设有检修平台便于操作。

The flame retardant filter cartridge is used with a temperature resistance of 150 ℃, and the surface of the filter cartridge is covered with PTFE film technology. It is inserted by side insertion, and each filter cartridge has a disassembly port. There is also a maintenance platform below the dust collector for easy operation.

采用双螺栓式快接脉冲阀，方便维修。

Adopting a double bolt quick connect pulse valve for easy maintenance.

滤筒除尘器设有压差报警器，滤筒出现破损或者阻塞由于压力过低或者压力过高都会报警，提示现场人员及时维护或维修。

The filter cartridge dust collector is equipped with a pressure difference alarm. If the filter cartridge is damaged or blocked due to low or high pressure, it will sound an alarm, reminding on-site personnel to maintain or repair it in a timely manner.

除尘设备前端设有预喷涂装置，在开机或关机时向滤料内喷入适量滑石粉的独立设备。滑石粉在滤筒表面成保护层，减少焊接烟尘对滤筒的伤害，混合烟尘中的油烟，降低含油粉尘起火隐患，预喷涂与设备联动，更具现场需要可手动可自动，设备启动通过时间控制预喷涂的工作时间，压缩空气与除尘器共用一套压缩空气。

The front end of the dust removal equipment is equipped with a pre spraying device, which is an independent device that sprays an appropriate amount of talcum powder into the filter material during startup or shutdown. Talcum powder forms a protective layer on the surface of the filter cartridge, reducing the damage of welding smoke and dust to the filter cartridge. It mixes the oil smoke in the smoke and reduces the fire hazard of oil containing dust. Pre spraying is linked with equipment and can be manually and automatically controlled according to on-site needs. The equipment starts by controlling the working time of pre spraying through time control, and the compressed air and dust collector share a set of compressed air.

设备前端增加旋风除尘器一台代替阻火器，预喷涂与旋风除尘器连接，丝网式阻火器风阻过大，影响整套设备的运行压力，而且不便于维修保养。旋风除尘器可以过滤掉烟气中大的颗粒并起阻火的作用。

Add a cyclone dust collector at the front end of the equipment to replace the flame arrester. The pre spraying is connected to the cyclone dust collector. The wind resistance of the wire mesh flame arrester is too high, which affects the operating pressure of the entire equipment and is not easy to maintain. The cyclone dust collector can filter out large particles in the flue gas and act as a flame retardant.

整体采用模块式设计，便于安装及维护，主机结构标准化，整体结构密封性好，整体钢制结构全部采用激光下料，整体安装完成后对角线尺寸小于5mm。

The overall design adopts a modular design, which is easy to install and maintain. The host structure is standardized, and the overall structural sealing is good. The entire steel structure is laser cut, and the diagonal size is less than 5mm after the overall installation is completed.

本文由多工位焊烟除尘设备提供技术支持，更多的详细精彩内容请点击我们的网站http://www.sdcjtz.com，我们将会全心全意为您提供满意的服务。

This article is supported by multi station welding smoke and dust removal equipment. For more detailed and exciting content, please click on our website http://www.sdcjtz.com We will wholeheartedly provide you with satisfactory service.

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