{"id":3887,"date":"2025-01-23T13:27:47","date_gmt":"2025-01-23T05:27:47","guid":{"rendered":"https:\/\/www.darko-tech.com\/?p=3887"},"modified":"2025-04-23T16:51:25","modified_gmt":"2025-04-23T08:51:25","slug":"%d8%af%d9%84%d9%8a%d9%84-%d9%88%d8%b8%d9%8a%d9%81%d8%a9-%d8%a7%d9%84%d8%b5%d9%85%d8%a7%d9%85-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%b1-%d9%88%d8%b5%d9%8a%d8%a7%d9%86%d8%aa%d9%87","status":"publish","type":"post","link":"https:\/\/www.darko-tech.com\/ar\/%d8%af%d9%84%d9%8a%d9%84-%d9%88%d8%b8%d9%8a%d9%81%d8%a9-%d8%a7%d9%84%d8%b5%d9%85%d8%a7%d9%85-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%b1-%d9%88%d8%b5%d9%8a%d8%a7%d9%86%d8%aa%d9%87\/","title":{"rendered":"\u062f\u0644\u064a\u0644 \u0648\u0638\u064a\u0641\u0629 \u0627\u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u062f\u0648\u0627\u0631 \u0648\u0635\u064a\u0627\u0646\u062a\u0647"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"3887\" class=\"elementor elementor-3887\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a6caf4e e-flex e-con-boxed e-con e-parent\" data-id=\"a6caf4e\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b123b88 elementor-widget elementor-widget-heading\" data-id=\"b123b88\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Working Principle of Rotary Unloading Valves<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-706de08 elementor-widget elementor-widget-text-editor\" data-id=\"706de08\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Rotary unloading valves play a crucial role in dust removal equipment for discharging ash, delivering air, and feeding other devices. Star-shaped unloaders are especially suitable for handling powdered and granular materials. Here are the key points of their working principle:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e1960c2 e-flex e-con-boxed e-con e-parent\" data-id=\"e1960c2\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2fcb409 elementor-widget elementor-widget-text-editor\" data-id=\"2fcb409\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"padding-left: 40px;\"><strong>1.Pneumatic Output System<\/strong>: Rotary unloading valves are widely used in pneumatic output systems. Whether in pressure or vacuum output, star discharge valves provide a stable and continuous feed to the conveying pipe. This ensures stable gas and solid phases within the pipeline, promoting normal operation of the pneumatic transport system. Additionally, they effectively isolate the pressure between the upper and lower sections, serving a locking function. Therefore, star discharge valves are essential components in pneumatic transport systems.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0088ba3 e-flex e-con-boxed e-con e-parent\" data-id=\"0088ba3\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-027eda6 elementor-widget elementor-widget-text-editor\" data-id=\"027eda6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"padding-left: 40px;\"><strong>2.Quantitative Discharge<\/strong>: As materials in the upper storage bin fall due to gravity and fill the gaps between the blades, the rotation of the blades discharges the materials below. This allows star-shaped unloaders to achieve quantitative and continuous discharging.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-810f3f0 elementor-widget elementor-widget-text-editor\" data-id=\"810f3f0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"padding-left: 40px;\"><strong>3.Wide Applications<\/strong>: Rotary unloading valves can serve as dischargers for storage bins, particularly in material collection systems. As advanced unloading devices, star-shaped unloaders play a vital role in dust removal systems. They find applications in industries such as environmental protection, metallurgy, chemicals, food, cement, road construction, and drying equipment.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bdfcd67 elementor-widget elementor-widget-text-editor\" data-id=\"bdfcd67\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"padding-left: 40px;\"><strong>4.High-Temperature Resistance<\/strong>: Standard rotary unloading valves can handle materials up to 280\u00b0C. Their bearings and impellers are isolated, preventing contact between powders and bearings. High-temperature unloaders can manage materials up to 500\u00b0C and utilize chain connections.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1035ca5 elementor-widget elementor-widget-heading\" data-id=\"1035ca5\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Structure of Rotary Unloading Valves<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-144a8d7 elementor-widget elementor-widget-text-editor\" data-id=\"144a8d7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Rotary unloading valves typically consist of several parts:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3d45ea7 elementor-widget elementor-widget-text-editor\" data-id=\"3d45ea7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"padding-left: 40px;\"><strong>1.Valve Body<\/strong>: The valve body is the main component, usually made from cast iron or stainless steel. The shape and layout of the internal passages determine the valve&#8217;s applications and performance.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1313047 elementor-widget elementor-widget-text-editor\" data-id=\"1313047\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"padding-left: 40px;\"><strong>2.Rotor<\/strong>: The rotor is a key component, including the valve core, valve shaft, and valve. The core rotates within the body, altering the flow direction and opening or closing the pipeline.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8ca50b4 elementor-widget elementor-widget-text-editor\" data-id=\"8ca50b4\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"padding-left: 40px;\"><strong>3.Sealing Elements<\/strong>: Seals function between the rotor and valve body to prevent fluid leakage. Common materials for seals include rubber, PTFE, and metal.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bd1ed64 elementor-widget elementor-widget-text-editor\" data-id=\"bd1ed64\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"padding-left: 40px;\"><strong>4.Drive Mechanism<\/strong>: This mechanism operates the rotor and may include handwheels, electric motors, or pneumatic drives.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9edd075 elementor-widget elementor-widget-text-editor\" data-id=\"9edd075\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"padding-left: 40px;\"><strong>5.Accessories<\/strong>: Accessories like safety valves, exhaust valves, and locking devices enhance the safety and convenience of rotary valves.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9196836 elementor-widget elementor-widget-heading\" data-id=\"9196836\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Maintenance Methods for Rotary Unloading Valves<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1650fc3 elementor-widget elementor-widget-text-editor\" data-id=\"1650fc3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>In a factory setting, equipment may encounter problems during operation. As a widely used product, unloading devices can experience various issues. Here are some maintenance and repair tips:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0667f30 elementor-widget elementor-widget-text-editor\" data-id=\"0667f30\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"padding-left: 40px;\"><strong>1.Regularly Check Lubrication<\/strong>: Unloading devices come filled with lubricants and grease from the factory. During operation, regularly inspect the lubrication oil, especially in high-temperature or dusty environments. Reduce the oil change interval to prevent damage.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c50583a elementor-widget elementor-widget-text-editor\" data-id=\"c50583a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"padding-left: 40px;\"><strong>2.Address Air and Dust Leakage<\/strong>: If air or dust leaks occur along the axis during operation, tighten the screws on the pressure cover. Alternatively, replace the packing and re-secure the cover.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d9b0603 elementor-widget elementor-widget-text-editor\" data-id=\"d9b0603\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"padding-left: 40px;\"><strong>3.Follow Disassembly Procedures<\/strong>: The internal structures of various models are similar, and the disassembly and assembly processes are generally the same. During transport, keep the device stable to avoid impacts that could damage the casing or motor.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-43c3a8b elementor-widget elementor-widget-text-editor\" data-id=\"43c3a8b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"padding-left: 40px;\"><strong>4.Self-Diagnose Faults<\/strong>: When issues arise due to inadequate maintenance, users should learn to self-diagnose faults to enhance efficiency.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a7542c7 elementor-widget elementor-widget-text-editor\" data-id=\"a7542c7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li style=\"list-style-type: none;\"><ul><li>Incorrect usage and imprecise operation can damage the motor. Always follow proper usage guidelines.<\/li><li>Periodically check the cleaning control system to ensure correct cleaning cycles. Inspect the pressure switch and clear any blockages in the pressure measuring points.<\/li><li>Regularly measure process parameters such as gas volume, temperature, and concentration. Investigate and address any anomalies promptly.<\/li><li>When the unloading valve stops, continue operating the unloading valve and exhaust fan for a while to eliminate moisture and dust from the equipment. Manual cleaning may be necessary to prevent moisture from affecting the filter bags.<\/li><\/ul><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d231b59 elementor-widget elementor-widget-image\" data-id=\"d231b59\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"450\" src=\"https:\/\/www.darko-tech.com\/wp-content\/uploads\/2025\/01\/Rotary-Valve.jpg\" class=\"attachment-full size-full wp-image-3888\" alt=\"Several rotary discharge valves are placed in the factory, showing the structure and function of the rotary valve\" srcset=\"https:\/\/www.darko-tech.com\/wp-content\/uploads\/2025\/01\/Rotary-Valve.jpg 1200w, https:\/\/www.darko-tech.com\/wp-content\/uploads\/2025\/01\/Rotary-Valve-300x113.jpg 300w, https:\/\/www.darko-tech.com\/wp-content\/uploads\/2025\/01\/Rotary-Valve-1024x384.jpg 1024w, https:\/\/www.darko-tech.com\/wp-content\/uploads\/2025\/01\/Rotary-Valve-768x288.jpg 768w, https:\/\/www.darko-tech.com\/wp-content\/uploads\/2025\/01\/Rotary-Valve-18x7.jpg 18w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-eb04b61 elementor-widget elementor-widget-text-editor\" data-id=\"eb04b61\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>By following these maintenance practices, users can extend the lifespan of rotary unloading valves and ensure their reliable performance in various industrial applications.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6ed131b elementor-widget elementor-widget-text-editor\" data-id=\"6ed131b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>For more information or support, please feel free to <a href=\"https:\/\/www.darko-tech.com\/contact-us\/\">contact us<\/a>. 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filter\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Working Principle of Rotary Unloading Valves Rotary unloading valves play a crucial role in dust removal equipment for discharging ash, delivering air, and feeding other devices. Star-shaped unloaders are especially suitable for handling powdered and granular materials. Here are the key points of their working principle: 1.Pneumatic Output System: Rotary unloading valves are widely used [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3888,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3887","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.6 (Yoast SEO v24.6) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Guide to Rotary Valve Function and Maintenance | DARKO<\/title>\n<meta name=\"description\" content=\"Learn the principles and maintenance tips for rotary unloading valves (star discharge valves) for optimal performance.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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