--- title: How Air Cannons Improve Material Flow Through Pre-Heater Tower description: Air cannons prevent material buildup that leads to blockages in the pre-heater tower, reducing the need for manual and dangerous cleanup. image: https://blog.martin-eng.com/hubfs/Air%20Cannon%2c%20Tower%2c%20Outside%2c%20Sky%2c%20Landscape.png --- [Skip to content](https://blog.martin-eng.com/problem-solved-papers/how-air-cannons-improve-material-flow-through-pre-heater-tower#main-content) [![Martin Engineering](https://blog.martin-eng.com/hubfs/Martin%20Engineering%20Logos/martin-sig_white.png "Martin Engineering")](https://www.martin-eng.com/) ## Problem Solved Paper call 800.544.2947 # How Air Cannons Improve Material Flow Through Pre-Heater Tower [Martin Engineering](https://blog.martin-eng.com/problem-solved-papers/author/martin-engineering) May 2 2025 [Safety](https://blog.martin-eng.com/problem-solved-papers/tag/safety) ### Problem ![pspblog_Devil_Problem](https://blog.martin-eng.com/hs-fs/hubfs/pspblog_Devil_Problem.jpg?width=325&height=236&name=pspblog_Devil_Problem.jpg)Material buildup on the pre-heater feed shelf choked the [flow of material](https://foundations.martin-eng.com/en/knowledge/air-cannons) into the kiln. The plant is a state-of-the-art facility, but was designed without air cannons on the pre-heater tower. Consequently, material flow through the pre-heater was subject to blockages, requiring excessive (and potentially risky) labor. To clear the buildups, it required three or four workers using jackhammers through access ports and working around the clock. The workers were exposed to about 850°C (1560°F) temperatures on the pre-heater tower. ### Solution ![PSpblog_devil_Solution](https://blog.martin-eng.com/hs-fs/hubfs/PSpblog_devil_Solution.jpg?width=325&height=231&name=PSpblog_devil_Solution.jpg)A total of twenty-one [Martin® Air Cannons](https://www.martin-eng.com/content/product_subcategory/491/air-cannons-products) were installed on the kiln pre-heater, concentrated around the feed shelf and the system’s alkali gas bypass. [Martin® Installation](https://www.martin-eng.com/content/page/543/installation) technicians installed the high-temperature air cannons. The firing sequence for the air cannons was set so one cannon fires every 30 seconds. The sequence moves through the entire air cannon installation, starting from the kiln feed shelf and working up, alternating side to side, until all the cannons have fired and then starts over. ### Results ![pspblog_devil_results](https://blog.martin-eng.com/hs-fs/hubfs/pspblog_devil_results.jpg?width=325&height=218&name=pspblog_devil_results.jpg)Following installation of the air cannon system on the plant’s kiln feed shelf, alkali bypass, and riser duct, the flow of material is more consistent and buildups are reduced. Evidence of this flow improvement is in the decrease in the labor required to remove blockages. Presently, blockage removal requires just two personnel, working two times per shift, for 20 minutes a time, to keep the pre-heater open. The air cannon system was designed to be readily expandable, in the event that future operating experience shows the need for additional cannons. [![Watch On-Demand Webinar "Air Cannons: The Force Multiplier Effect"](https://no-cache.hubspot.com/cta/default/5156573/interactive-189649529510.png)](https://blog.martin-eng.com/hs/cta/wi/redirect?encryptedPayload=AVxigLL%2FhirodpXzcfyY5rH8HB9fBt3IqJNpEbmJFSK5YMt0xfw1UR0Z8tcShJpHccYPffitFBYN%2F7C52ESl0RA6%2BofgfldL76HNtc3htGxzBqex3ZmjMDq80cd1%2FYv4zBDrFHVy4iJhMa%2BWUeC0RefAQQgkGk%2Bz2RIwHbh57imvRo2qvtSOG3Syc7bsZuBtqDjow2M%2BEF8oYBXQi8LfpPvCO%2BimO46bf%2FYIyTT0Sg7llmFTIXXdcsmjmvt68y58KjJaDg%3D%3D&webInteractiveContentId=189649529510&portalId=5156573) [![Martin Engineering](https://blog.martin-eng.com/hubfs/Martin%20Engineering%20Logos/martin-sig-rgb_300px-wide.png "Martin Engineering")](https://www.martin-eng.com/) Martin Engineering is the world leader in making bulk materials handling cleaner, safer, and more productive since 1944. © 2025 Martin Engineering Company. All rights reserved. ###### SOLUTIONS [Belt Cleaners](https://www.martin-eng.com/content/product_category/463/conveyor-belt-cleaners) [Transfer Point Products](https://www.martin-eng.com/content/product_category/469/conveyor-transfer-point-solutions) [Air Cannons](https://www.martin-eng.com/content/product_category/465/bulk-material-flow-aids) [Vibration](https://www.martin-eng.com/content/product_category/468/industrial-vibration-solutions) ###### RESOURCES [Learning Center](https://foundations.martin-eng.com/learningcenter?hsLang=en) [Training](https://foundations.martin-eng.com/en-us/training-options?hsLang=en) [Blog](https://blog.martin-eng.com/?hsLang=en) [Videos](https://www.youtube.com/@martinengineering) ###### CONTACT US 800.544.2947 [info@martin-eng.com](mailto:info@martin-eng.com) [martin-eng.com](https://www.martin-eng.com/)   ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Martin Engineering", "url" : "https://blog.martin-eng.com/problem-solved-papers/author/martin-engineering" }, "dateModified" : "2025-05-02T16:59:49.690Z", "datePublished" : "2025-05-02T16:59:49.000Z", "headline" : "How Air Cannons Improve Material Flow Through Pre-Heater Tower", "image" : [ "https://blog.martin-eng.com/hubfs/Air%20Cannon%2c%20Tower%2c%20Outside%2c%20Sky%2c%20Landscape.png" ], "mainEntityOfPage" : { "@id" : "https://blog.martin-eng.com/problem-solved-papers/how-air-cannons-improve-material-flow-through-pre-heater-tower", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://blog.martin-eng.com/hubfs/MartinEng_Sig_2c_RGB-1.png" }, "name" : "Martin Engineering" } } ```