）焊接煙塵的治理設(shè)備 金屬焊接產(chǎn)生的懸浮在空氣中的顆粒非常小，是“可呼吸”的，并稱其為焊接煙霧。這種焊接煙霧中含有氣態(tài)和顆粒狀態(tài)對人體有害的污染物質(zhì)。治理的目的：一是使室內(nèi)有害污染物的濃度小于國家強制性標(biāo)準(zhǔn)和《工作場所有害因素職業(yè)接觸界限值》所規(guī)定的車間空氣中焊接煙塵衛(wèi)生標(biāo)準(zhǔn)（電焊煙塵醉高允許濃度為6mg/m3，鋁合金焊接煙塵為4mg/m3?）；二是排向大氣的污染物濃度達到國家環(huán)保要求。?由于焊煙的塵埃粒徑微小，一般的過濾材質(zhì)無法過濾焊接煙塵，應(yīng)采用聚四氟乙烯覆膜濾筒式過濾器，采用集中式整體煙塵處理設(shè)備，脈沖反吹清灰，確保過濾精度。

）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）高效覆膜聚酯濾筒的性能特點 聚四氟乙烯（PTFE）覆膜聚酯濾材是一種高科技產(chǎn)品，它的微孔結(jié)構(gòu)可在特殊條件下經(jīng)機械拉伸得到，而絲毫未改變其原有特性。微孔過濾覆膜孔徑可控制在0.2～0.3mm，過濾方法屬于膜表面過濾。膜表面光滑又具備極佳的化學(xué)穩(wěn)定性，能抗腐蝕，耐酸堿。不老化又憎水性。在過濾時膜表面截留的粉塵很容易剝落，其通氣量能長時期保持在同一水平上。由于覆膜濾材是用其光滑不粘的表面截留粉塵，利用這一特性即可節(jié)約脈沖清灰系統(tǒng)的壓縮空氣量，又可避免煙塵對薄膜基布的磨損，延長了濾筒的使用壽命。同時為設(shè)備提供醉低而平穩(wěn)的壓降差。

(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.

車間焊煙技術(shù)除塵煙塵凈化系統(tǒng)又被稱為多工位焊接煙塵凈化系統(tǒng)。主要由過濾單元（除塵器）、大風(fēng)量吸塵風(fēng)機、排風(fēng)管道、電控系統(tǒng)、系統(tǒng)相關(guān)配件及操作主件組成。主要是針對焊接工位較多且緊湊、同時加工多種工序及工況較復(fù)雜的車間環(huán)境治理。主過濾單元所選用的除塵器型號主要根據(jù)多工位焊煙凈化系統(tǒng)的具體要求來決定，具體要求包括排風(fēng)管道的管徑、長度尺寸；具體的操作工位數(shù)量以及需處理面積的排風(fēng)風(fēng)量；所處理的煙塵材料的物理及化學(xué)性能以及主過濾器、管道、電控，乃至整個除塵系統(tǒng)所處的環(huán)境等諸多因素。中央焊接煙塵凈化系統(tǒng)流程說明：根據(jù)不同的工況為焊接工位設(shè)計不同的收集裝置，從污染源頭經(jīng)收集裝置進入主排風(fēng)管道，這個過程會將煙氣粉塵瞬間收集，保證了工作人員自身健康問題；而后經(jīng)主管道進入過濾單元（除塵器），煙塵被除塵器中的濾材高度凈化，煙氣粉塵會在風(fēng)機負壓的作用在附著在濾材表面，脈沖閥控制濾材的自動清灰功能，在脈沖閥及控制程序的作用下，系統(tǒng)會每隔一段時間對濾材從內(nèi)而外進行反吹清灰，沉流式的設(shè)計原理保證反吹過程中的顆粒物及細微粉塵落入集灰桶集中收集，收集后的顆粒粉塵需根據(jù)使用周期及煙塵量的大小定期外運清理，凈化后的達標(biāo)氣體在風(fēng)機的作用下經(jīng)煙筒外排。

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.

焊接車間濾筒除塵器對焊接煙塵治理為焊接工位(補焊工位)—集塵罩—阻火器—電動調(diào)風(fēng)閥—分支管路—主管路—濾筒除塵器—風(fēng)機—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.

焊接車間濾筒除塵器流程說明：

Process description of filter cartridge dust collector in welding workshop:

焊接產(chǎn)生的煙氣首先經(jīng)過集塵罩進行收集，集塵罩前端設(shè)置阻火器目的為防止火花進入管道造成起火，阻火器過后有風(fēng)量調(diào)節(jié)閥門，通過閥門后經(jīng)采用漸變管徑(平衡管路末端的風(fēng)量風(fēng)速)進入主管路，后通過旁插式濾筒除塵器，煙氣廢氣在濾筒除塵器中被凈化濾筒阻攔，部分大顆粒在重力的作用下掉落至灰斗，一小部分細小顆粒附著與濾筒表面，脈沖閥在PLC的控制下通過時間(壓力控制)，定時或者定壓對濾筒內(nèi)外進行噴吹清灰，反吹過程中微小的顆粒會掉入灰斗后進入收集筒，潔凈的空氣在離心風(fēng)機的作用下高空排出。

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.

焊接車間濾筒除塵器技術(shù)特點：

Technical characteristics of filter cartridge dust collector in welding workshop:

此設(shè)備采用自動清灰形式，選用PLC自動清灰系統(tǒng)，設(shè)備進出口設(shè)有壓差變送器，可根據(jù)時間或設(shè)備自身壓力變化進行清灰，達到節(jié)省壓縮空氣消耗量的目的。

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.

噴吹順序從上到下，逐行噴吹每個濾筒均配有一個脈沖閥，每個濾筒清灰效果好。

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.

采用阻燃濾筒耐溫150℃，濾筒表面采用PTFE覆膜技術(shù)，采用旁插式插入，每個濾筒均有拆卸口，且除塵器下方設(shè)有檢修平臺便于操作。

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.

采用雙螺栓式快接脈沖閥，方便維修。

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

濾筒除塵器設(shè)有壓差報警器，濾筒出現(xiàn)破損或者阻塞由于壓力過低或者壓力過高都會報警，提示現(xiàn)場人員及時維護或維修。

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.

除塵設(shè)備前端設(shè)有預(yù)噴涂裝置，在開機或關(guān)機時向濾料內(nèi)噴入適量滑石粉的獨立設(shè)備?；墼跒V筒表面成保護層，減少焊接煙塵對濾筒的傷害，混合煙塵中的油煙，降低含油粉塵起火隱患，預(yù)噴涂與設(shè)備聯(lián)動，更具現(xiàn)場需要可手動可自動，設(shè)備啟動通過時間控制預(yù)噴涂的工作時間，壓縮空氣與除塵器共用一套壓縮空氣。

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.

設(shè)備前端增加旋風(fēng)除塵器一臺代替阻火器，預(yù)噴涂與旋風(fēng)除塵器連接，絲網(wǎng)式阻火器風(fēng)阻過大，影響整套設(shè)備的運行壓力，而且不便于維修保養(yǎng)。旋風(fēng)除塵器可以過濾掉煙氣中大的顆粒并起阻火的作用。

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.

整體采用模塊式設(shè)計，便于安裝及維護，主機結(jié)構(gòu)標(biāo)準(zhǔn)化，整體結(jié)構(gòu)密封性好，整體鋼制結(jié)構(gòu)全部采用激光下料，整體安裝完成后對角線尺寸小于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.

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