CN2233071Y - Combined positive and negative pressure air flow drier - Google Patents
Combined positive and negative pressure air flow drier Download PDFInfo
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- CN2233071Y CN2233071Y CN 95216460 CN95216460U CN2233071Y CN 2233071 Y CN2233071 Y CN 2233071Y CN 95216460 CN95216460 CN 95216460 CN 95216460 U CN95216460 U CN 95216460U CN 2233071 Y CN2233071 Y CN 2233071Y
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- drying
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Abstract
The utility model relates to a combined positive and negative pressure air flow drier, belonging to a powder air flow drying apparatus, with the structure that an air filter and a heater are provided, and a cyclone discharger is arranged at per stage; the front part us provided with a predry pipe and a corresponding breaking mechanism for solving feeding drying of stick wet materials; the middle part is provided with a positive pressure air flow drying pipe and a waste gas exhaust pipe; the tail part is provided with a three-stage negative pressure air flow drying pipe which is applicable to dry heat sensitive materials. The combined positive and negative pressure air flow drier can be used to dry stick wet materials and heat sensitivity powders such as kaolin, silica white, yeast feed and pollen.
Description
The utility model belongs to the powder pneumatic conveying dryer.
Two patents that the utility model designs than me: patent of invention " energy saving two-stage drying technology process " (89101945.6) and utility model patent " starch (powder) pneumatic drier " (87208581.3) develop to some extent.
The patent of invention " energy saving two-stage drying technology process " of my design, utilize the high moisture material drying to be divided into the objective law of constant rate of drying and falling-rate periods of drying, the free moisture on the material surface of degassing of the high-temperature tail gas constant rate of drying that whole recovery deceleration drying sections are discharged, thereby exhaust temperature is low to moderate about 40 ℃, humidity is up to more than 90%, and its sensible heat is used the limit.
The feature of the utility model patent " starch (powder) pneumatic drier " that I design is to finish positive negative pressure in conjunction with the two-stage drying with a typhoon machine, all reclaim the high-temperature tail gas of deceleration drying section discharge and fly powder, be used for the dry wet feed of constant speed drying section to half-dried, make low-temp tail gas (40 ± 3 ℃), the high humidity (more than 90%) approaching saturated (seeing Appendix 1) of discharge, sensible heat is almost used up, and reduces by 15～20 ℃ than the exhaust temperature of general pneumatic drier; This machine can also be used for drying to the heat of blower fan compressed air intensification (6～9 ℃), saves heat energy 20～40% than similar type.This pneumatic drier is extensive use in food, medicine, chemical industry, and dry starch, albumen powder, yeast feed, aspirin, kaolin and mica etc. obtain good energy-saving effect.But discovery does not fit into the drying of adhesional wetting materiel in application.
The purpose of this utility model is the drying that solves the high wet feed of lump, the high wet feed of soft cake piece, slurry and plaster material, also solves heat sensitive material is dried to requirement under the hot blast temperature of permission moisture content of finished products simultaneously.
The technical solution of the utility model: prior art " starch (powder) pneumatic drier " is finished positive negative pressure in conjunction with the two-stage pneumatic conveying drying with a typhoon machine, all reclaim the high-temperature tail gas that deceleration drying section is discharged, utilize waste heat, the adjusting hot blast distributes, make low-temp tail gas (40 ± 3 ℃), the high humidity (more than 90%) of discharge approaching saturated, sensible heat is almost used up, on the basis of this " starch (powder) pneumatic drier ", forwardly be provided with predrying section and be provided with two-stage negative-pressure air-flow dryer section at afterbody.Increase predrying pipeline and processor thereof (5), select the processor of five kinds of structures for use, solve the feeding of corresponding sticking wet feed.A. when the high wet feed of dry lump, with hitting pulverizer (7) comminuting matter becomes the powder shape at a high speed, carry out drying, the bulk material is selected by sorter (9) and is returned pulverizer (7), repeats to pulverize; B. when the high wet feed of dry soft cake piece, blend material with pulper (10) and become the powder shape, carry out drying, the bulk material is still selected by sorter (9), returns pulper (10) and blends; C. when dry plaster material, cause powder with extruder grain device (11), carry out drying, the bulk material is still selected by sorter (9) and is returned feeder (6); D. when dry slurry, be sprayed into particulate, carry out drying with injector (13).E. when the dry difficulty high moisture material of branchs that anhydrates, and when requiring moisture content of finished products very low, directly use scroll feeder (6) to feed in raw material, carry out drying, the bulk material is still selected by sorter (9) and is returned feeder (6); Increase the drying that two-stage negative-pressure air-flow dryer section solves heat sensitive material, when the anhydrate heat sensitive material of branch of dry difficulty, and when requiring moisture content of finished products to hang down, after original secondary negative pressure drying section (24), increase two-stage negative pressure drying section (27,30) again, the drying time of prolongation in the new thermal current of negative pressure, very favourable to reducing moisture content of finished products, all prove because put into practice with theory, depend merely on growth pneumatic conveying drying length of tube, not as increasing drying machine progression, more can reach the low-moisture requirement of finished product.
Advantage of the present utility model and benefit: feature of the present utility model is on the basis of former utility model patent " starch (powder) pneumatic drier ", and the front portion is provided with predrying section and afterbody and is provided with two-stage negative-pressure air-flow dryer section.Therefore, just increased the scope of application of former utility model, and kept its advantage and energy-saving effect.Still finish positive negative pressure in conjunction with multilevel drying with a typhoon machine, all reclaim the high-temperature tail gas of each section of falling-rate periods of drying discharge and fly powder, be used for the dry wet feed of constant speed drying section to half-dried, make low-temp tail gas (40 ± 3 ℃), the high humidity (more than 90%) of discharge approaching saturated, sensible heat is almost used up, and reduces by 15～20 ℃ than the tail gas of general pneumatic drier; This machine can also be used for drying to the heat of blower fan compressed air intensification (6～9 ℃), saves heat energy 20～40% than similar type.The mean value that large, medium and small three types oven dry starch performance in this machine series is measured is for vaporizing about 1kg water consumption steam 1.3kg, save 42% and 36% respectively than domestic 2.3kg and external 2.1kg, be better than external most advanced index 1.8 (1.5) kg, occupy first place in the world.Average ton starch consumption steam 584kg, 0.7～1.3t than the П П C-25M pneumatic drier of the former Soviet Union saves 41.6% approximately; Average ton starch consumption mark coal 79.7kg is converted into production target, and consuming the mark coal is 90.9kg, compares with the mean value 221.3kg of 57 potato starch factories consumption mark coals in the China shallow lake association data, saves mark coal 130.3kg, and promptly 58.9%, be roughly equal to 27.4 yuan; Per ten thousand tons of starch can be saved 27.4 ten thousand yuan.
Fig. 1 is that the positive negative pressure of combined type is in conjunction with the pneumatic drier overall construction drawing
Fig. 2 is predrying section processor and the reinforced figure of pulper
Fig. 3 is predrying section processor and the reinforced figure of extruder grain device
Fig. 4 is predrying section processor and the reinforced figure of injector
Fig. 5 is predrying section directly scheming with scroll feeder is reinforced
Explain embodiment of the present utility model below in conjunction with accompanying drawing.
Fig. 1 is that the positive negative pressure of combined type is in conjunction with the pneumatic drier general structure, finish positive negative pressure in conjunction with multistage pneumatic conveying drying with a typhoon machine, it is characterized in that forwardly being provided with predrying section and be provided with three grades of negative-pressure air-flow dryer section: air cleaner (1) at afterbody, air heater (2) connects five control valves (37); Predrying pipeline is by control valve (37), predrying warm-air pipe (4), and processor (5) and predrying pipe (16) are formed, its preceding termination air heater (2), afterbody machine (20) of giving a dinner for a visitor from afar; One-level warm-air pipe (3), preceding termination control valve (37), the afterbody machine (20) of giving a dinner for a visitor from afar; The blast pipe of blower fan (20) connects one-level malleation airflow drying tube (21), connect one-level cyclone (22), its top overflow pipe tracheae (23) that runs in, connect deduster (33) again, deduster (33) connects dust bag (34), and the bottom discharging opening of cyclone (22) connects secondary negative pressure drying pipe (24) through airlock (35); The preceding termination control valve (37) of secondary negative pressure drying pipe (24), afterbody connects secondary cyclone (25), and its top overflow pipe connects secondary backwind tube (26), the machine (20) of giving a dinner for a visitor from afar again, its underpart discharging opening connects three grades of negative pressure drying pipes (27) through airlock (35); The preceding termination control valve (37) of three grades of negative pressure drying pipes (27), afterbody connects three grades of cyclones (28), and its top overflow pipe connects three grades of backwind tubes (29), the machine (20) of giving a dinner for a visitor from afar again, its underpart discharging opening connects level Four negative pressure drying pipe (30) through airlock (35); The preceding termination control valve (37) of level Four negative pressure drying pipe (30), afterbody connects Category Four cyclone device (31), and its top overflow pipe connects level Four backwind tube (32), the machine (20) of giving a dinner for a visitor from afar again, its underpart discharging opening connects discharge duct (36) through airlock (35).
The air-flow and the materials flow of this machine are as follows: fresh air k
BrightAfter air cleaner (1) purification and air heater (2) heating, go into five control valves (37) respectively; Wet stock L
WetAfter being broken into powder by scroll feeder (6) feeding processor (5), again with predrying pipe hot-air K
1Combination drying, control valve (37) can be controlled the hot-air K of predrying pipe
1Flow, go into blower fan after the tail gas of regaining through predrying pipe (16) and negative pressure drying sections at different levels converges; Reenter one-level drying tube (21) drying, control valve (37) can be controlled the hot-air K of one-level warm-air pipe
2Flow, separate tail gas K through cyclone separator (22)
TailThrough exhaust duct (23) and deduster (33) emptying, discharge dust and go into dust bag (34), the half-dried material L that tells
1Go into secondary negative pressure drying pipe (24) drying through airlock (35), control valve (37) can be controlled the hot-air K of secondary drying pipe
3Flow, separate through cyclone separator (25) again, tail gas is through backwind tube (26) return fan (20), the half-dried material L that tells
2Go into three grades of negative pressure drying pipes (27) drying through airlock (35), control valve (37) can be controlled the hot-air K of three-stage drying pipe
4Flow, separate through cyclone separator (28) again, tail gas is through backwind tube (29) return fan (20), the half-dried material L that tells
3Go into level Four negative pressure drying pipe (30) drying through airlock (35), control valve (37) can be controlled the hot-air K of level Four drying tube
5Flow, separate through cyclone (31) again, tail gas is through backwind tube (32) return fan (20), the siccative L that tells
DoDischarge through airlock (35) and discharge duct (36).
Embodiment 1:
The a scheme of pre-dried device (5), it is held and levies the processor (5) that is predrying section, by scroll feeder (6), pulverizer (7), sorter (9) and feed back pipe (8) are formed, scroll feeder (6) connects pulverizer (7), connect predrying warm-air pipe (4) under the pulverizer (7), on connect sorter (9), connect predrying pipe (16) on the sorter (9), under take back material pipe (8), connect the feeding mouth of pulverizer (7) again.
During applying starch (powder) pneumatic drier drying corn protein powder, pulverize hard filter cake material with pulverizer (7) earlier and become the powder shape, manually carry out drying then with spade feeding pneumatic drier.When experiment, when feeding was gone into one-level warm-air pipe (3), drying effect was better than feeding other positions, so adopt the reinforced scheme of the pulverizing shown in the present embodiment 1, can save the labour like this, enhanced productivity again.Increased sorter (9) again, selected the bulk material and return processing, avoided producing and stop up.
Embodiment 2:
The b scheme of pre-dried device (5), it is characterized in that predrying section processor (5), form that scroll feeder (6) connects pulper (10) by scroll feeder (6) and pulper (7), connect predrying warm-air pipe (4) under the pulper (10), on connect predrying pipe (16).
When the high wet feed of the dry soft cake piece of applying starch (powder) pneumatic drier, because the sticking wet hardness of material is low, available pulper (10) blends material and becomes the powder shape, is taken away by the high speed thermal current, carry out drying, can solve the reinforced problem of the high wet feed of soft cake piece as white carbon black like this.
Embodiment 3:
The c scheme of pre-dried device (5) is characterized in that predrying section processor (5), by scroll feeder (6), nodulizer (11), drying duct (12), sorter (9) and feed back pipe (8) are formed, and scroll feeder (6) connects nodulizer (11), nodulizer (11) is connected within the drying duct (12), connect predrying warm-air pipe (4) under the drying duct (12), on connect sorter (9), connect predrying pipe (16) on the sorter (9), under take back material pipe (8), connect feeder (6) again.When applying starch (powder) pneumatic drier drying plaster material, cause powder with extruder grain device (11), carry out drying, the bulk material is still selected by sorter (9) and is returned feeder (6).The unit that has as dry chicken manure just adopts this kind prilling process.
Embodiment 4:
The d scheme of pre-dried device (5), it is characterized in that predrying section processor (5), form that pulp jets device (13) is connected within the spray chamber (14) by pulp jets device (13) and spray chamber (14), connect predrying warm-air pipe (4) under the spray chamber (14), on connect predrying pipe (16).
When applying starch (powder) pneumatic drier drying pulpous state material, spray slurry with injector (13) and become particulate, the surface moisture of the particulate that gasifies at once in the high thermal current in spray chamber (14) makes it the surface sclerosis, further drying in what dryer section of back.This drying proposal reduces about exhaust temperature 40 degree than traditional spray-drying scheme, and energy-saving effect is tangible.
Embodiment 5:
The e scheme of pre-dried device (5), it is characterized in that predrying section processor (5), by scroll feeder (6), drying duct (15), sorter (9) and feed back pipe (8) are formed, scroll feeder (6) connects drying duct (15), connect predrying warm-air pipe (4) under the drying duct (15), on connect sorter (9), connect predrying pipe (16) on the sorter (9), under take back material pipe (8), connect feeder (6) again.
When the dry difficulty of applying starch (powder) the pneumatic drier high moisture material of branch that anhydrates, and when requiring moisture content of finished products very low, directly use scroll feeder (6) reinforced, carry out drying, the bulk material is still selected by sorter (9) and is returned feeder (6).As dry ardealite, require to reduce to about 8% from containing moisture 43%, promptly remove a crystallization water, this pneumatic drier reaches, and general pneumatic drier is inaccessible.
Claims (6)
1. the positive negative pressure of combined type is in conjunction with pneumatic drier, finish positive negative pressure in conjunction with multistage pneumatic conveying drying with a typhoon machine, it is characterized in that forwardly being provided with predrying section and be provided with two-stage negative-pressure air-flow dryer section: air cleaner (1) at afterbody, air heater (2) connects five control valves (37); Predrying section by control valve (37), predrying warm-air pipe (4), and processor (5) and predrying pipe (16) are formed, its preceding termination air heater (2), afterbody machine (20) of giving a dinner for a visitor from afar; One-level warm-air pipe (3), preceding termination control valve (37), the afterbody machine (20) of giving a dinner for a visitor from afar; The blast pipe of blower fan (20) connects one-level malleation airflow drying tube (21), connect one-level cyclone (22), its top overflow pipe tracheae (23) that runs in, connect deduster (33) again, deduster (33) connects dust settling pocket (34), and the bottom discharging opening of cyclone (22) connects secondary negative pressure drying pipe (24) through airlock (35); The preceding termination control valve (37) of secondary negative pressure drying pipe (24), afterbody connects secondary cyclone (25), and its top overflow pipe connects secondary backwind tube (26), the machine (20) of giving a dinner for a visitor from afar again, its underpart discharging opening connects three grades of negative pressure drying pipes (27) through airlock (35); The preceding termination control valve (37) of three grades of negative pressure drying pipes (27), afterbody connects three grades of cyclones (28), and its top overflow pipe connects three grades of backwind tubes (29), the machine (20) of giving a dinner for a visitor from afar again, its underpart discharging opening connects level Four negative pressure drying pipe (30) through airlock (35); The preceding termination control valve (37) of level Four negative pressure drying pipe (30), afterbody connects Category Four cyclone device (31), and its top overflow pipe connects level Four backwind tube (32), the machine (20) of giving a dinner for a visitor from afar again, its underpart discharging opening connects discharge duct (36) through airlock (35).
2. by the described drying machine of claim 1, it is characterized in that predrying section processor (5), by scroll feeder (6), pulverizer (7), sorter (9) and feed back pipe (8) are formed, scroll feeder (6) connects pulverizer (7), connect predrying warm-air pipe (4) under the pulverizer (7), on connect sorter (9), connect predrying pipe (16) on the sorter (9), under take back material pipe (8), connect the feeding mouth of pulverizer (7) again.
3. by the described drying machine of claim 1, it is characterized in that predrying section processor (5), form that scroll feeder (6) connects pulper (10) by scroll feeder (6) and pulper (10), connect predrying warm-air pipe (4) under the pulper (10), on connect predrying pipe (16).
4. by the described drying machine of claim 1, it is characterized in that predrying section processor (5), by scroll feeder (6), nodulizer (11), drying tube (12), sorter (9) and feed back pipe (8) are formed, and scroll feeder (6) connects nodulizer (11), nodulizer (11) is connected within the drying tube (12), connect predrying warm-air pipe (4) under the drying tube (12), on connect sorter (9), connect predrying pipe (16) on the sorter (9), under take back material pipe (8), connect feeder (6) again.
5. by the described drying machine of claim 1, it is characterized in that predrying section processor (5), form that pulp jets device (13) is connected within the spray chamber (14) by pulp jets device (13) and spray chamber (14), connect predrying warm-air pipe (4) under the spray chamber (14), on connect predrying pipe (16).
6. by the described drying machine of claim 1, it is characterized in that predrying section processor (5), by scroll feeder (6), drying tube (15), sorter (9) and feed back pipe (8) are formed, scroll feeder (6) connects drying tube (15), connect predrying warm-air pipe (4) under the drying tube (15), on connect sorter (9), connect predrying pipe (16) on the sorter (9), under take back material pipe (8), connect feeder (6) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95216460 CN2233071Y (en) | 1995-07-21 | 1995-07-21 | Combined positive and negative pressure air flow drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95216460 CN2233071Y (en) | 1995-07-21 | 1995-07-21 | Combined positive and negative pressure air flow drier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2233071Y true CN2233071Y (en) | 1996-08-14 |
Family
ID=33865546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95216460 Expired - Fee Related CN2233071Y (en) | 1995-07-21 | 1995-07-21 | Combined positive and negative pressure air flow drier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2233071Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589254A (en) * | 2012-02-23 | 2012-07-18 | 哈尔滨工业大学 | Drying device for biomass multistage pneumatic conveying bed |
| CN102778106A (en) * | 2012-08-09 | 2012-11-14 | 南京扬子精细化工有限责任公司 | Method and device for drying calcium propionate |
| CN102878780A (en) * | 2012-09-28 | 2013-01-16 | 金昌博瑞宏精细化工有限公司 | Pipeline-flow drying method |
| CN104880046A (en) * | 2014-12-30 | 2015-09-02 | 昆明特康科技有限公司 | Viscous material drying equipment and method of producing SO2-free konjaku flour by using viscous material drying equipment |
| CN105043072A (en) * | 2015-07-28 | 2015-11-11 | 洪知瑜 | Multi-functional grading dryer by adoption of wind energy |
| CN105043087A (en) * | 2015-06-10 | 2015-11-11 | 苏州宏恒化工有限公司 | Air exhausting type adjustable hopper |
| CN105111796A (en) * | 2015-09-12 | 2015-12-02 | 商丘金蓬实业股份有限公司 | Environment-friendly energy-saving carbon black deep-processing equipment |
| CN105371635A (en) * | 2015-12-15 | 2016-03-02 | 驻马店华中正大有限公司 | Multistage cyclic drying system used for feeding particle aureomycin |
-
1995
- 1995-07-21 CN CN 95216460 patent/CN2233071Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589254A (en) * | 2012-02-23 | 2012-07-18 | 哈尔滨工业大学 | Drying device for biomass multistage pneumatic conveying bed |
| CN102778106A (en) * | 2012-08-09 | 2012-11-14 | 南京扬子精细化工有限责任公司 | Method and device for drying calcium propionate |
| CN102878780A (en) * | 2012-09-28 | 2013-01-16 | 金昌博瑞宏精细化工有限公司 | Pipeline-flow drying method |
| CN104880046A (en) * | 2014-12-30 | 2015-09-02 | 昆明特康科技有限公司 | Viscous material drying equipment and method of producing SO2-free konjaku flour by using viscous material drying equipment |
| CN105043087A (en) * | 2015-06-10 | 2015-11-11 | 苏州宏恒化工有限公司 | Air exhausting type adjustable hopper |
| CN105043072A (en) * | 2015-07-28 | 2015-11-11 | 洪知瑜 | Multi-functional grading dryer by adoption of wind energy |
| CN105111796A (en) * | 2015-09-12 | 2015-12-02 | 商丘金蓬实业股份有限公司 | Environment-friendly energy-saving carbon black deep-processing equipment |
| CN105371635A (en) * | 2015-12-15 | 2016-03-02 | 驻马店华中正大有限公司 | Multistage cyclic drying system used for feeding particle aureomycin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |