207:, 304 SS, 316 SS, and other materials. Rotary airlock feeders are often available in standard and heavy duty models, the difference being the head plate and bearing configuration. Heavy duty models use an outboard bearing in which the bearings are moved out away from the head plate. Housing inlet and discharge configurations are termed drop-thru or side entry. Different wear protections are available such as hard chrome or ceramic plating on the inner housing surfaces. Grease and air purge fittings are often provided to prevent contaminants from entering the packing seals.
127:
22:
119:
311:
The easy-clean series rotary feeders can be fast and simply disassembled, thoroughly quick cleaned, sanitized and inspected or maintenance in a minimum amount of time without the use of tools or removal from service, thereby reducing downtime and increasing system production. Reassembly without tools
302:
Rotary airlock feeders are very often installed to dose material in a pneumatic conveying line. As a consequence, a lot of gas coming from the conveying line is brought upstream by the rotation of the valve and the leakages in between the rotor and the stator. In order to have a functional system and
280:
Drop through rotary airlock feeders are designed for rugged applications that require an outboard bearing style unit where contamination and /or an abrasive product cannot be handled with an inboard bearing style. The outboard bearing feeders is engineered for use in high pressure pneumatic conveying
271:
ARF is a variable speed rotary feeder for bulk materials that works in harmony with the natural flow of the material being fed. The ARF, using a rotating member and articulable gate, controls the volume of material flow based on the material's inherent angle of repose. The speed of rotation and the
230:
The basic use of the rotary airlock feeder is as an airlock transition point, sealing pressurized systems against loss of air or gas while maintaining a flow of material between components with different pressure and suitable for air lock applications ranging from gravity discharge of filters, rotary
293:
The blow-thru rotary airlock feeder is ideal for pneumatic conveying applications in food, grain, chemical, milling, baking, plastics and pharmaceutical industries. The blow-thru airlocks feature a low profile with large capacity. High pressure differentials integral mounting feet, and retrofit
210:
Airlock-type rotary valves function as isolation devices in the event of a fire or deflagration inside the processing facility. They do not put out fires, but by sealing off the flow of air and material, they may slow down or prevent flames from spreading further down the conveying line.
272:
positioning of the articulable gate provides a consistent feed of your material. Drum rotation allows the material to be gently fed without retarding material flow, while minimizing surge loading, product degradation, dust generation and maintaining uniformity of material flow.
195:
Rotary feeders are ideal for pollution control applications in wood, grain, food, textile, paper, tobacco, rubber, and paint industries, the
Standard Series works beneath dust collectors and cyclone separators even with high temperatures and different pressure differentials.
319:
rotary feeder is a special purpose valve designed for where cross-contamination is a major concern and lengthy shut-downs for clean-out are cost-prohibitive, suited for Dairy, Pharmaceutical industries, Food, Baking, Chemical, Plastics, Paint, and Powder
Coating plants.
214:
In order to function properly as isolation devices, the NFPA requires certain features in rotary airlock valves, including a 0.0079’’ clearance between the rotor and housing, specific materials of construction, and eight or more rotor vanes.
254:
Airlock applications include gravity discharge of filters, rotary valves, cyclone dust collectors, and rotary airlock storage devices, as well as precision feeders for dilute phase and continuous dense phase pneumatic conveying systems.
231:
valves, cyclone dust collectors, and rotary airlock storage devices to precision feeders for dilute phase and continuous dense phase pneumatic convey systems. (More on this in “How airlocks work in a conveying system.”)
176:
Rotary airlock feeders have wide application in industry wherever dry free-flowing powders, granules, crystals, or pellets are used. Typical materials include: cement, ore, sugar, minerals, grains, plastics, dust,
339:
This type of feeder is used for discharge of secondary fuel as for example: plastics or wood. The knife is cutting the oversize material and is preventing the rotor from blockage.
251:
Rotary airlock valves are also widely used as volumetric feeders for metering materials at precise flow rates from bins, hoppers, or silos onto conveying or processing systems.
152:/bins, receivers, and cyclones into a pressure or vacuum-driven pneumatic conveying system. Components of a rotary feeder include a rotor shaft, housing, head plates, and
303:
a good flow of material, a small hopper equipped with a filter is very often connected to the feeder. The air can then be vented and the product admitted to the valve.
199:
Rotary valves are available with square or round inlet and outlet flanges. Housing can be fabricated out of sheet material or cast. Common materials are
241:
Rotary airlock feeders/ rotary airlock valves are used in pneumatic conveying systems, dust control equipment, and as volumetric feed-controls.
153:
281:
systems, with high temperatures where more of an effective seal is required due to high or excessive wear that is experienced with a simple
406:
381:
323:
It is ideal for batch mixing systems such as those handling different colored resins which demand regular cleaning between cycles.
294:
competitive units. The blow-thru valves are available with 10-vane open-end rotor; outboard bearings and replaceable shaft seals.
86:
58:
105:
65:
470:
72:
43:
39:
54:
430:
161:
144:, are commonly used in industrial and agricultural applications as a component in a bulk or specialty
356:
32:
192:
Industries requiring this type include cement, asphalt, chemical, mining, plastics, food, etc.
331:
The filter valve is a low-cost solution designed for light duty dust collector applications.
312:
is accomplished in minutes. Internal clearances are automatically re-established every time.
157:
79:
8:
145:
148:
system. Rotary feeders are primarily used for discharge of bulk solid material from
186:
149:
316:
282:
165:
126:
160:. Rotors have large vanes cast or welded on and are typically driven by small
464:
204:
446:
The Powder and Bulk
Channel - Solutions for the Powder and Bulk Industry
455:
431:
http://www.powderprocess.net/Equipments_html/Airlock_Rotary_Valve.html
200:
21:
445:
357:"Heavy Duty Extra Tough Rotary Airlock Valves | Meyer Industrial"
178:
450:
182:
118:
407:"NFPA guidelines: Replacing your uncompliant parts"
46:. Unsourced material may be challenged and removed.
297:
288:
266:
462:
382:"What you need to know about isolation devices"
306:
275:
189:, coffee, cereals, pharmaceuticals, etc.
106:Learn how and when to remove this message
125:
117:
463:
334:
122:Meyer Heavy Duty Rotary Airlock Valve
456:http://www.imperial-technologies.com
379:
44:adding citations to reliable sources
15:
13:
14:
482:
439:
20:
326:
298:Rotary airlock feeder degassing
289:Blow-thru rotary airlock feeder
31:needs additional citations for
424:
399:
373:
349:
267:Angle of Repose rotary Feeders
1:
342:
7:
162:internal combustion engines
10:
487:
361:Meyer Industrial Solutions
307:Easy clean rotary feeder
261:
218:
471:Mechanical engineering
276:Rotary airlock feeders
171:
130:
123:
451:Conical Rotary valves
129:
121:
40:improve this article
335:Knife rotary feeder
131:
124:
380:Thompson, Megan.
246:Volumetric feeder
146:material handling
116:
115:
108:
90:
478:
433:
428:
422:
421:
419:
417:
403:
397:
396:
394:
392:
377:
371:
370:
368:
367:
353:
136:, also known as
111:
104:
100:
97:
91:
89:
48:
24:
16:
486:
485:
481:
480:
479:
477:
476:
475:
461:
460:
442:
437:
436:
429:
425:
415:
413:
405:
404:
400:
390:
388:
378:
374:
365:
363:
355:
354:
350:
345:
337:
329:
309:
300:
291:
278:
269:
264:
258:
221:
174:
166:electric motors
138:rotary airlocks
112:
101:
95:
92:
55:"Rotary feeder"
49:
47:
37:
25:
12:
11:
5:
484:
474:
473:
459:
458:
453:
448:
441:
440:External links
438:
435:
434:
423:
398:
372:
347:
346:
344:
341:
336:
333:
328:
325:
317:Clean-in-place
308:
305:
299:
296:
290:
287:
283:dust collector
277:
274:
268:
265:
263:
260:
249:
248:
239:
238:
228:
227:
225:Rotary airlock
220:
217:
173:
170:
134:Rotary feeders
114:
113:
28:
26:
19:
9:
6:
4:
3:
2:
483:
472:
469:
468:
466:
457:
454:
452:
449:
447:
444:
443:
432:
427:
412:
408:
402:
387:
383:
376:
362:
358:
352:
348:
340:
332:
324:
321:
318:
313:
304:
295:
286:
284:
273:
259:
256:
252:
247:
244:
243:
242:
237:
234:
233:
232:
226:
223:
222:
216:
212:
208:
206:
202:
197:
193:
190:
188:
184:
180:
169:
167:
163:
159:
155:
154:packing seals
151:
147:
143:
142:rotary valves
139:
135:
128:
120:
110:
107:
99:
96:December 2007
88:
85:
81:
78:
74:
71:
67:
64:
60:
57: –
56:
52:
51:Find sources:
45:
41:
35:
34:
29:This article
27:
23:
18:
17:
426:
414:. Retrieved
410:
401:
389:. Retrieved
385:
375:
364:. Retrieved
360:
351:
338:
330:
327:Filter valve
322:
314:
310:
301:
292:
279:
270:
257:
253:
250:
245:
240:
236:Rotary valve
235:
229:
224:
213:
209:
205:carbon steel
198:
194:
191:
175:
141:
137:
133:
132:
102:
93:
83:
76:
69:
62:
50:
38:Please help
33:verification
30:
411:ACS Valves
386:ACS Valves
366:2018-01-29
343:References
66:newspapers
201:cast iron
181:, flour,
465:Category
158:bearings
416:21 July
391:21 July
179:fly ash
150:hoppers
80:scholar
183:gypsum
82:
75:
68:
61:
53:
262:Types
87:JSTOR
73:books
418:2021
393:2021
315:The
219:Uses
187:lime
156:and
59:news
172:Use
164:or
140:or
42:by
467::
409:.
384:.
359:.
285:.
203:,
185:,
168:.
420:.
395:.
369:.
109:)
103:(
98:)
94:(
84:·
77:·
70:·
63:·
36:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
