CN203454642U - Heating drying device of material drying processing system - Google Patents
Heating drying device of material drying processing system Download PDFInfo
- Publication number
- CN203454642U CN203454642U CN201320489174.XU CN201320489174U CN203454642U CN 203454642 U CN203454642 U CN 203454642U CN 201320489174 U CN201320489174 U CN 201320489174U CN 203454642 U CN203454642 U CN 203454642U
- Authority
- CN
- China
- Prior art keywords
- end cap
- cylinder
- drying
- discharging
- rotating cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 title claims abstract description 55
- 238000001035 drying Methods 0.000 title claims abstract description 53
- 238000010438 heat treatment Methods 0.000 title claims abstract description 11
- 238000007599 discharging Methods 0.000 claims abstract description 44
- 239000000446 fuel Substances 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 27
- 230000000694 effects Effects 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 239000006004 Quartz sand Substances 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 108060002971 flz Proteins 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000003068 static Effects 0.000 description 2
- 229920002456 HOTAIR Polymers 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005039 chemical industry Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000003250 coal slurry Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000002036 drum drying Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Abstract
The utility model discloses a heating drying device of a material drying processing system. The heating drying device comprises a combustor and a rolling cylinder composed of a middle rotary cylinder body, a material feeding fixing end cap and a material discharging fixing end cap, wherein the material feeding fixing end cap and the material discharging fixing end cap are connected with the two ends of the middle rotary cylinder body respectively through a rotary sealing structure, a material lifting plate is arranged on the inner wall of the middle rotary cylinder body in the axial direction, the inner wall of the middle rotary cylinder body is provided with a heat-preserving layer made of pouring materials, a fire erupting nozzle of the combustor extends into the rolling cylinder through one end of the rolling cylinder, one end of the rolling cylinder is provided with a feeding hopper above the fire erupting nozzle, the lower portion of the other end of the rolling cylinder is provided with a material outlet, and the combustor is provided with a spiral feeding machine for supplying fuel to the combustor. The device is reasonable in design, simple in structure and low in cost; the processing quantity is large, the material drying cycle is short, the drying degree is high, the automation degree is high, drying processing is carried out in a fully sealed mode, energy is saved, environment protection is achieved, practicability is high, and the device is worthy of being popularized and used.
Description
Technical field
The utility model belongs to industrial production technology field, relates in particular to a kind of heating, drying device of the drying materials treatment system that the larger material of moisture content is dried.
Background technology
In industrial processes, the material that moisture content is larger generally all will be used dryer equipment in dehydration link, and dryer equipment is divided into industrial stoving equipment and civilian drying plant.
Industrial stoving equipment belongs to mining machinery, mostly generally is large and medium-sized machinery, and its thermal source, from burner, adopts downflow type mode of heating.Therefore need the material of drying, from material feeding box, charging, slip into into cylindrical shell, after being pushed to by spiral flight.Due to dryer slant setting, material is to the back-end dirty at gravity and gyroscopic action on the one hand, material is taken up repeatedly by flight on the other hand, bringing to upper end constantly raises and spreads again, make material in cylinder, form uniform curtain, the thermal current fully and in cylinder carries out heat exchange, because material is repeatedly raised and spread, contained moisture is dried gradually, thereby reaches the object of oven dry.
Civilian drying plant belongs to washing machine, generally, after rinse dehydration, is used for removing the moisture in clothes and other textiles.Most dryer comprises the cylinder of a rotation, and inner core is by belt drives, in the surrounding of cylinder, has hot-air to be used for transpiring moisture.Drying is all the principle that adopts cylinder rotating, what reach drying article is not wound around effect, and the dryer of early stage use has been eliminated now substantially, and modern oven dry adopts computer automatically to control, can, according to drying requirement, configure different bake out temperatures and drying time.Cylinder adopts the stainless steel bright plate of excellent heat resistance to be made, and inner wall smooth, can reduce the wearing and tearing of clothing.High-efficiency radiator, and be equipped with rational wind channel, make hot blast directly and contact with clothing, greatly improved drying efficiency, saved the energy simultaneously.Major diameter feeding mouth, has facilitated into and out of clothing.Large-area lint collecting net, is not easy to cause lint to stop up, and has protected the unimpeded of air channel, thereby has improved greatly drying efficiency.
Industrial stoving machine equipment is widely used in the industries such as mine, building materials, highway, bridge, coal, metallurgy, chemical industry, resistance to material.Be mainly used in moist large, the heavy materials such as slag, lime stone, clay, river sand, quartz sand, grain slag.
The particular type of industrial stoving machine equipment comprises: industrial drier, sludge dryer, coal slurry drying-machine, horizontal drying machine, three-cylinder drier, iron powder dryer, excrement class dryer, foodstuff drying device, desulfurated plaster dryer, slag drying machine, quartz sand dryer, rotary drum drying machine, roller drying machine, brown coal dryer, tower drier etc.
Industrial stoving equipment possesses following three indexs at the function needs that meet drying and processing:
One, gross efficiency: also can be described as average efficiency, the Dust Capacity that in the same time, dryer is removed and the percentage of the Dust Capacity flowing into from dryer import.Two, percent of pass: percent of pass refers to the percentage of dryer outlet Dust Capacity and import Dust Capacity.Percent of pass is larger, illustrates that the Dust Capacity exporting from dryer is larger, and drying efficiency is lower.In addition, when the drying efficiency of dryer is very high, with percent of pass, represent that difference in dryer performance is more obvious while representing than by gross efficiency.Three, classification drying efficiency: the dryer efficiency that classification drying efficiency is demarcated by dust size or particle size range is called classification efficiency, it refers in a certain particle size range, the ratio of the Dust Capacity being captured and import dust total amount.The oven dry gross efficiency of dryer and the particle diameter of processed dust have much relations, even same device is worked under same service condition, due to the difference of dust dispersity, the performance of dryer also has significant difference.
Various industrial material drying plants are when meeting above-mentioned three important indicators as far as possible above, the defect such as have to some extent complex structure, program is loaded down with trivial details, cost is high, drying and processing efficiency is low, drying effect is bad, dust pollution is large, use cost is high.
Utility model content
The utility model is in order to solve weak point of the prior art, provide a kind of simple in structure, drying and processing is effective, drying efficiency is high, the heating, drying device of energy-conserving and environment-protective, drying materials treatment system that cost is low.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: the heating, drying device of drying materials treatment system, comprise burner and by middle rotating cylinder, charging is end cap and the discharging cylinder that fixedly end cap forms fixedly, charging fixedly end cap and discharging fixedly end cap be connected by rotary seal structure with middle rotating cylinder two ends respectively, middle rotating cylinder inwall is provided with lifting blade vertically, middle rotating cylinder inwall is provided with the heat-insulation layer of being made by castable, the bocca of burner is extend in cylinder by one end of cylinder, one end of cylinder is provided with feed hopper above bocca, the bottom of the other end of cylinder is provided with discharging opening, burner is provided with as the screw(-type) feeder of burner for fuel.
In the middle of described rotary seal structure comprises, rotating cylinder two ends plug respectively charging fixedly end cap and discharging fixedly in end cap, the outer wall of middle rotating cylinder respectively and charging fixedly end cap and discharging are fixedly provided with the seal sleeve of polyurethane material between the inwall of end cap, charging fixedly end cap, discharging is fixedly respectively equipped with baffle plate or the block that limits seal sleeve position in the end of end cap, middle rotating cylinder, feed hopper is located at charging stiff end and covers, and discharging opening is located at fixedly end cap lower end of discharging.
Adopt technique scheme, drying materials treatment system also comprises frame, frame is provided with bracing or strutting arrangement and Power Drive Unit, burner is fixed in frame, cylinder is rotatably connected on bracing or strutting arrangement, cylinder and Power Drive Unit are in transmission connection, and cylinder is provided with suction opeing on the top, one end with discharging opening, and suction opeing is connected with dust arrester.
Described cylinder is by feed hopper one end to the downward-sloping 3-5 ° in discharging opening one end, and suction opeing is located at discharging stiff end and covers end.
Described dust arrester comprises dust cleaning case and air-introduced machine, the air inlet of air-introduced machine is connected with the air outlet of dust cleaning case by induced duct, the air inlet of dust cleaning case is connected with suction opeing by exhaust column, and the air outlet of air-introduced machine is connected with a stovepipe, and induced duct and/or exhaust column are provided with volume damper.
Described Power Drive Unit comprises drive motors, reductor, gear and bull gear, and in the middle of bull gear is located at, on rotating cylinder, the power drive end of drive motors is connected with gear drive by reductor, and gear and bull gear are connected with a joggle.
Described bracing or strutting arrangement comprises the base that is located at middle rotating cylinder both sides, on base, rotates and is provided with support roller, and middle rotating cylinder is provided with the wheel rim that contacts and be rotatably assorted with support roller, and support roller both sides are provided with gear wheel.
Described cylinder is provided with filter screen at suction opeing place.
In described frame, be also provided with to the infeed belt conveyor of feed hopper convey materials and the outfeed belt conveyor of carrying the material that passes through discharging opening, the discharge end of infeed belt conveyor is positioned at the top of feed hopper, and the feed end of outfeed belt conveyor is positioned at the below of discharging opening.
When drying materials treatment system is used in work, drive motors rotates by reductor driven gear, in the middle of gear drives by bull gear, rotating cylinder rotates, charging fixedly end cap and discharging fixedly end cap maintain static, infeed belt conveyor by material in feed hopper is transported to cylinder, lifting blade is kicked up wet stock, to discharging opening, carry, air-introduced machine by hot gas along taking out backward in rotating cylinder, filter screen to the stopping of large granular materials under, air-introduced machine is extracted dust and moisture out by suction opeing, by exhaust column, enter into the dedusting of dust cleaning case place, then with the gas of dust, by induced duct and stovepipe, be not discharged in atmosphere, material rolls in middle rotating cylinder, simultaneously burner is to jet flames in cylinder, wet stock is heated, moisture is pumped, dry material is discharged to fall by discharging opening and on outfeed belt conveyor, is transported to next process.Lifting blade plays to be kicked up wet stock to fall the effect that fully obtains oven dry; Heat-insulation layer plays the effect that in cylinder, heat runs off of avoiding; In the middle of rotary seal structure plays rotating cylinder two ends respectively with fixedly end cap and the discharging effect that fixedly end cap relatively rotates and seals of charging.Volume damper plays and regulates taking out the effect of air force in cylinder.
The oven dry principle that drying materials treatment system adopts is: burner provides downflow type heat in cylinder, drum-inclined is placed, material flows to discharge end on the one hand under gravity and gyroscopic action, material is taken up repeatedly by lifting blade on the other hand, brings to upper end and constantly raises and spread again, makes material in cylinder, form uniform curtain, thermal current fully and in cylinder carries out heat exchange, because material is repeatedly raised and spread, contained moisture is dried gradually, thereby reaches the object of oven dry.
The utility model is reasonable in design, simple in structure, provide that heat is large, cost is low, treating capacity is large, the drying materials cycle is shorter, degree of drying is strong, automaticity is high, and drying and processing is totally-enclosed operation, and energy-conserving and environment-protective are practical, are worthy of popularization.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the fixing structural representation of the rotary seal structure of end caps of charging in Fig. 1.
The specific embodiment
As depicted in figs. 1 and 2, the heating, drying device of drying materials treatment system of the present utility model, comprise burner 2 and by middle rotating cylinder 8, charging is end cap 9 and the discharging cylinder that fixedly end cap 10 forms fixedly, charging fixedly end cap 9 and discharging fixedly end cap 10 be connected by rotary seal structure 11 with middle rotating cylinder 8 respectively, middle rotating cylinder 8 inwalls are provided with lifting blade 12 vertically, middle rotating cylinder 8 inwalls are provided with the heat-insulation layer 7 of being made by castable, the bocca 3 of burner 2 is extend in cylinder by one end of cylinder, one end of cylinder is provided with feed hopper 4 above bocca 3, the bottom of the other end of cylinder is provided with discharging opening 6, , burner 2 is provided with as the screw(-type) feeder 32 of burner 2 for fuel.
In the middle of rotary seal structure 11 comprises, rotating cylinder 8 two ends plug respectively charging fixedly end cap 9 and discharging fixedly in end cap 10, the outer wall of middle rotating cylinder 8 respectively and charging fixedly end cap 9 and discharging are fixedly provided with the seal sleeve 13 of polyurethane material between the inwall of end cap 10, charging fixedly end cap 9, discharging is fixedly respectively equipped with baffle plate or the block 14 that limits seal sleeve 13 positions in the end of end cap 10, middle rotating cylinder 8, feed hopper 4 is located at charging fixedly on end cap 9, and discharging opening 6 is located at fixedly end cap 10 lower ends of discharging.
Drying materials treatment system also comprises frame 1, frame 1 is provided with bracing or strutting arrangement and Power Drive Unit, burner 2 is fixedly located in frame 1, cylinder rotates and is located on bracing or strutting arrangement, cylinder and Power Drive Unit are in transmission connection, cylinder is provided with suction opeing 5 on the top with discharging opening 6 one end, and suction opeing 5 is connected with dust arrester.Cylinder is provided with filter screen 29 at suction opeing 5 places.
Cylinder is by feed hopper 4 one end to the discharging opening 6 downward-sloping 3-5 ° in one end, and preferably 5 °, suction opeing 5 is located at fixedly end cap 10 upper ends of discharging.
Dust arrester comprises dust cleaning case 15 and air-introduced machine 16, the air inlet of air-introduced machine 16 is connected with the air outlet of dust cleaning case 15 by induced duct 18, the air inlet of dust cleaning case 15 is connected with suction opeing 5 by exhaust column 17, the air outlet of air-introduced machine 16 is connected with a stovepipe 19, and induced duct 18 and/or exhaust column 17 are provided with volume damper 20.
Power Drive Unit comprises drive motors 21, reductor 22, gear 23 and bull gear 24, bull gear 24 is located on middle rotating cylinder 8, the power drive end of drive motors 21 is in transmission connection by reductor 22 and gear 23, and gear 23 is connected with a joggle with bull gear 24.
Bracing or strutting arrangement comprises the base 25 that is located at middle rotating cylinder 8 both sides, on base 25, rotates and is provided with support roller 26, and middle rotating cylinder 8 is provided with the wheel rim 27 that contacts and be rotatably assorted with support roller 26, and support roller 26 both sides are provided with gear wheel 28.
In frame 1, be also provided with to the infeed belt conveyor 30 of feed hopper 4 convey materials and the outfeed belt conveyor 31 of carrying the material that passes through discharging opening 6, the discharge end of infeed belt conveyor 30 is positioned at the top of feed hopper 4, and the feed end of outfeed belt conveyor 31 is positioned at the below of discharging opening 6.
Above-mentioned burner 2, infeed belt conveyor 30, outfeed belt conveyor 31, air-introduced machine 16, drive motors 21, screw(-type) feeder 32 are existing mature technology, and concrete structure repeats no more.
When drying materials treatment system is used in work, drive motors 21 rotates by reductor 22 driven gears 23, in the middle of gear 23 drives by bull gear 24, rotating cylinder 8 rotates, charging fixedly end cap 9 and discharging fixedly end cap 10 maintain static, infeed belt conveyor 30 is transported to material in cylinder through feed hopper 4, wet stock flows to discharge end on the one hand under gravity and gyroscopic action, wet stock is taken up repeatedly by lifting blade 12 on the other hand, bringing to upper end constantly raises and spreads again, make material at the uniform curtain of the interior formation of middle rotating cylinder 8, thermal current fully and in cylinder carries out heat exchange, because material is repeatedly raised and spread, contained moisture is dried gradually, thereby reach the object of oven dry, material is in the process of carrying to discharging opening 6, air-introduced machine 16 by hot gas along taking out backward in rotating cylinder, filter screen 29 to the stopping of large granular materials under, air-introduced machine 16 is extracted dust and moisture out by suction opeing 5, by exhaust column 17, enter into dust cleaning case 15 and locate dedusting, then with the gas of dust, by induced duct 18 and stovepipe 19, be not discharged in atmosphere, material is in the interior rolling of middle rotating cylinder 8, simultaneously the bocca 3 of burner 2 is to jet flames in cylinder, wet stock is heated, moisture is pumped, dry material is discharged to fall on outfeed belt conveyor 31 by discharging opening 6 and is transported to next process.Lifting blade 12 plays to be kicked up wet stock to fall the effect that fully obtains oven dry; Heat-insulation layer 7 plays the effect that in cylinder, heat runs off of avoiding; In the middle of rotary seal structure 11 plays rotating cylinder 8 two ends respectively with fixedly end cap 9 and the discharging effect that fixedly end cap 10 relatively rotates and seals of charging.Volume damper 20 plays and regulates taking out the effect of air force in cylinder.
The present embodiment is not done any pro forma restriction to shape of the present utility model, material, structure etc.; any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all belong to the protection domain of technical solutions of the utility model.
Claims (2)
1. the heating, drying device of drying materials treatment system, it is characterized in that: comprise burner and by middle rotating cylinder, charging is end cap and the discharging cylinder that fixedly end cap forms fixedly, charging fixedly end cap and discharging fixedly end cap be connected by rotary seal structure with middle rotating cylinder two ends respectively, middle rotating cylinder inwall is provided with lifting blade vertically, middle rotating cylinder inwall is provided with the heat-insulation layer of being made by castable, the bocca of burner is extend in cylinder by one end of cylinder, one end of cylinder is provided with feed hopper above bocca, the bottom of the other end of cylinder is provided with discharging opening, burner is provided with as the screw(-type) feeder of burner for fuel.
2. the heating, drying device of drying materials treatment system according to claim 1, it is characterized in that: in the middle of described rotary seal structure comprises, rotating cylinder two ends plug respectively charging fixedly end cap and discharging fixedly in end cap, the outer wall of middle rotating cylinder respectively and charging fixedly end cap and discharging are fixedly provided with the seal sleeve of polyurethane material between the inwall of end cap, charging is end cap fixedly, discharging is end cap fixedly, the end of middle rotating cylinder is respectively equipped with baffle plate or the block that limits seal sleeve position, feed hopper is located at charging stiff end and covers, discharging opening is located at fixedly end cap lower end of discharging.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201320489174.XU CN203454642U (en) | 2013-08-12 | 2013-08-12 | Heating drying device of material drying processing system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201320489174.XU CN203454642U (en) | 2013-08-12 | 2013-08-12 | Heating drying device of material drying processing system |
Publications (1)
Publication Number | Publication Date |
---|---|
CN203454642U true CN203454642U (en) | 2014-02-26 |
Family
ID=50134509
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201320489174.XU Expired - Fee Related CN203454642U (en) | 2013-08-12 | 2013-08-12 | Heating drying device of material drying processing system |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN203454642U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104126659A (en) * | 2014-07-01 | 2014-11-05 | 齐鲁工业大学 | Solar-energy grain drier |
CN107084597A (en) * | 2017-06-13 | 2017-08-22 | 肖顺治 | A kind of soybean residue drying plant |
-
2013
- 2013-08-12 CN CN201320489174.XU patent/CN203454642U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104126659A (en) * | 2014-07-01 | 2014-11-05 | 齐鲁工业大学 | Solar-energy grain drier |
CN107084597A (en) * | 2017-06-13 | 2017-08-22 | 肖顺治 | A kind of soybean residue drying plant |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN203454636U (en) | Material drying treatment system | |
CN103398556B (en) | A kind of drying materials treatment system | |
CN203454637U (en) | Drying discharging device of material drying processing system | |
CN108286882A (en) | A kind of energy-saving and environment-friendly foodstuff drying device | |
CN203454707U (en) | Rolling cylinder of material drying processing system | |
CN208154978U (en) | A kind of flyash dryer | |
CN101986074B (en) | Method for drying coal slime by hot wind and smoke of power station boiler | |
CN203454642U (en) | Heating drying device of material drying processing system | |
CN203454635U (en) | Drying dedusting device of material drying processing system | |
CN204678852U (en) | A kind of material drier | |
CN103449700A (en) | Sludge quick-dry continuous heat-supplying wind-dry type drying device | |
CN204421572U (en) | A kind of rotary drying machine | |
CN202692637U (en) | Drum dryer used for producing organic fertilizers | |
CN203454638U (en) | Fed material drying device of material drying processing system | |
CN204115423U (en) | Leather leftover pieces drying and processing system | |
CN107814472A (en) | A kind of sludge drying processing method and device | |
CN104748508A (en) | Coal slurry drying system | |
CN104567299A (en) | Rotary drying device | |
CN204555552U (en) | A kind of coal slime drying system | |
CN204963467U (en) | A cylinder drying -machine for refuse disposal | |
CN204944089U (en) | A kind of dryer for the treatment of house refuse | |
CN208378701U (en) | A kind of Treatment of Sludge desiccation apparatus | |
CN202968336U (en) | Multilayer running hot air drying device | |
CN202570329U (en) | Flow line production equipment for building material-added composite material | |
CN207430886U (en) | A kind of soil repair system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20200812 |
|
CF01 | Termination of patent right due to non-payment of annual fee |