CN210458863U - Two stoving section of thick bamboo pitch mixers - Google Patents
Two stoving section of thick bamboo pitch mixers Download PDFInfo
- Publication number
- CN210458863U CN210458863U CN201921100712.5U CN201921100712U CN210458863U CN 210458863 U CN210458863 U CN 210458863U CN 201921100712 U CN201921100712 U CN 201921100712U CN 210458863 U CN210458863 U CN 210458863U
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- Prior art keywords
- thick bamboo
- stoving section
- drying
- drying cylinder
- stoving
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- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims abstract description 65
- 235000017491 Bambusa tulda Nutrition 0.000 title claims abstract description 65
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims abstract description 65
- 241001330002 Bambuseae Species 0.000 title claims abstract description 63
- 239000011425 bamboo Substances 0.000 title claims abstract description 63
- 238000001035 drying Methods 0.000 claims abstract description 143
- 230000007246 mechanism Effects 0.000 claims abstract description 54
- 239000000463 material Substances 0.000 claims abstract description 52
- 239000010426 asphalt Substances 0.000 claims description 25
- 238000007599 discharging Methods 0.000 claims description 14
- 239000000428 dust Substances 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 10
- 238000002485 combustion reaction Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims description 4
- 238000011068 loading method Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 claims 9
- 241000209128 Bambusa Species 0.000 abstract description 2
- 230000011218 segmentation Effects 0.000 abstract description 2
- 239000004576 sand Substances 0.000 description 20
- 239000004575 stone Substances 0.000 description 13
- 238000002156 mixing Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model provides a two stoving section of thick bamboo pitch mixers, including frame, first stoving section of thick bamboo, second stoving section of thick bamboo, rabbling mechanism, be used for the burning mechanism of drying and be used for driving actuating the actuating mechanism of first stoving section of thick bamboo, second stoving section of thick bamboo and rabbling mechanism work to first stoving section of thick bamboo and second stoving section of thick bamboo, first stoving section of thick bamboo and second stoving section of thick bamboo all rotate and install in the frame, and first stoving section of thick bamboo is connected so that carry the grit material after the primary drying in the second stoving section of thick bamboo through punishment in advance mechanism and second stoving section of thick bamboo, second stoving section of thick bamboo is connected so that carry the rabbling mechanism with the grit material after drying again in. The utility model discloses a two stoving section of thick bamboo segmentation cooperations heat the grit and dry, get rid of moisture, compare traditional pitch mixer and adopt two independent structures that heat of stoving section of thick bamboos, the utility model discloses only need a supporting feed mechanism, the fault rate is lower to can effectively guarantee that the grit of stoving completion keeps on a temperature.
Description
Technical Field
The utility model relates to a bituminous mixture agitated vessel technical field, concretely relates to two stoving section of thick bamboo asphalt mixing machine.
Background
The road pavement is generally built by adopting asphalt mixture, and in the preparation process of the asphalt mixture, the sandstone needs to be heated, dehydrated and dried firstly, and then is mixed and stirred with the asphalt. In order to increase the yield, some manufacturers add an additional drying cylinder on the basis of the existing mobile single-drying-cylinder asphalt mixer to heat and dry the sand materials, and form a structural form that two drying cylinders are matched with a stirrer to produce, so that the yield is improved firmly, but the asphalt mixer adopting the structure has the advantages that the two drying cylinders independently feed and independently dry, the heating temperature cannot be synchronized, in addition, two sets of feeding mechanisms are required to deal with the feeding of the two drying cylinders, the failure rate is increased while the equipment cost is increased, and therefore, the popularization of the asphalt mixer adopting the structural form is greatly limited, so that the asphalt mixer is gradually abandoned.
SUMMERY OF THE UTILITY MODEL
The utility model aims at above weak point, provide an adopt the segmentation to dry, can improve drying efficiency's two stoving section of thick bamboos asphalt mixing machine greatly.
The utility model provides a scheme that technical problem adopted is: the utility model provides a two stoving section of thick bamboo pitch mixers, includes frame, first stoving section of thick bamboo, second stoving section of thick bamboo, rabbling mechanism, is used for the burning mechanism of drying and be used for driving the actuating mechanism of first stoving section of thick bamboo, second stoving section of thick bamboo and rabbling mechanism work to first stoving section of thick bamboo and second stoving section of thick bamboo, first stoving section of thick bamboo and second stoving section of thick bamboo all rotate and install in the frame, and first stoving section of thick bamboo is connected so that carry the grit material after the initial drying in the second stoving section of thick bamboo through punishment in advance mechanism and second stoving section of thick bamboo, second stoving section of thick bamboo is connected so that carry the grit material after drying again in the rabbling mechanism.
Furthermore, in order to convey the sand stone subjected to preliminary heating and drying by the first drying cylinder into the second drying cylinder for further heating and drying, the sand stone is dried in sections so as to improve the drying efficiency; the material passing mechanism comprises a material passing frame and a material passing device arranged on the material passing frame, the material passing device comprises a feeding connecting port in rotatable butt joint with the first drying cylinder, a discharging connecting port in rotatable butt joint with the second drying cylinder and a material passing guide plate connected between the feeding connecting port and the discharging connecting port, and the material passing guide plate is arranged by extending downwards from one side of the feeding connecting port to one side of the discharging connecting port in an inclined manner.
Furthermore, the material passing device is fixedly installed, and the first drying cylinder and the second drying cylinder can rotate relative to the material passing device; the horizontal installation position of first drying cylinder is higher than the horizontal installation position of second drying cylinder, the rotating clearance has between the outside and the feeding connector of first drying cylinder discharge gate and the first drying cylinder are located to the feeding connector, the rotating clearance has between the inboard and the ejection of compact connector of second drying cylinder feed inlet and the second drying cylinder is located to the ejection of compact connector.
Further, in order to suck out the dust in the first drying drum and the second drying drum, meanwhile, the convection of the air of the first drying drum and the air of the second drying drum are formed; the double-drying-cylinder asphalt stirrer further comprises a dust removal fan arranged above the material passing device, and the dust removal fan is communicated with the material passing device to suck water vapor and dust in the first drying cylinder and the second drying cylinder.
Furthermore, in order to respectively heat and dry the first drying cylinder and the second drying cylinder, the drying efficiency is improved, and in order to avoid that the flame of the combustion mechanism is directly sprayed into the drying cylinders and directly contacts with sand and stone to cause oil adhesion; the discharge gate of first stoving section of thick bamboo and second stoving section of thick bamboo all is equipped with ejection of compact blade, combustion mechanism includes first combustor and second combustor, the outside of first stoving section of thick bamboo feed inlet is located to first combustor is through transition combustion tube and first stoving section of thick bamboo intercommunication, the outside of second stoving section of thick bamboo discharge gate is located to the second combustor is through ejection of compact blade and second stoving section of thick bamboo intercommunication.
Furthermore, the first drying drum and the second drying drum are rotatably arranged on the rack, so that the first drying drum and the second drying drum can rotatably dry and discharge sand; the outer peripheral sides of the first drying cylinder and the second drying cylinder are respectively provided with a rolling track in a surrounding mode, and the rack is provided with supporting tugs which are respectively matched with the rolling tracks in a rolling mode.
Furthermore, in order to drive the first drying drum and the second drying drum to rotationally dry and discharge the sand; the driving mechanism comprises a first speed reducing motor, a second speed reducing motor, a first outer gear ring and a second outer gear ring, the first outer gear ring is fixedly connected with the first drying cylinder in a coaxial mode, the second outer gear ring is fixedly connected with the second drying cylinder in a coaxial mode, the first speed reducing motor is in transmission connection with the first outer gear ring to drive the first drying cylinder to rotate, and the second speed reducing motor is in transmission connection with the second outer gear ring to drive the second drying cylinder to rotate.
Furthermore, in order to realize automatic feeding, the manpower is liberated, and the production efficiency is improved; two stoving section of thick bamboo pitch mixer still includes feed mechanism, feed mechanism includes feeder hopper, conveyer belt, is used for driving the conveyer belt driver of conveyer belt work and locates the feed bin that is used for loading grit material on the conveyer belt, the lower extreme of feeder hopper is connected with the feed inlet of a stoving section of thick bamboo, the top of feeder hopper is located to the one end of conveyer belt.
Further, in order to control the feeding and discharging of the feed hopper; be equipped with the lower gate that is used for controlling the last gate of feeder hopper feeding and is used for controlling the feeder hopper ejection of compact on the feeder hopper, the last gate is located the upside of feeder hopper, the lower gate is located the junction of feeder hopper and a stoving section of thick bamboo.
Furthermore, in order to realize the trailable function, the frame can be carried by matching with a trailer, and the frame can be ensured to be erected on the ground; the bottom of frame is equipped with the walking wheel, and the bottom of frame still can be dismantled and install the supporting leg.
Compare prior art, the utility model has the advantages of it is following: the utility model adopts two drying cylinders to be matched in a subsection way to heat and dry the sand stone, and remove moisture, compared with the structure that the two drying cylinders are independently used for heating in the traditional asphalt mixer, the utility model only needs to be matched with a feeding mechanism, the failure rate is lower, and the sand stone after being dried can be effectively ensured to be kept at a temperature; the utility model discloses 60 tons of bituminous mixture can be produced per hour, the pitch mixer that is greater than 80 tons is produced per hour in comparison to current on the market, the utility model discloses the volume is littleer, and the transportation of making things convenient for more simultaneously, compares in the pitch mixer about 40 tons of current per hour production on the market, the utility model discloses output is big, can guarantee the timely supply of bituminous mixture, guarantees the normal construction of road surface capital construction.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the material passing mechanism.
In the figure: 1-a feeding mechanism; 101-a storage bin; 102-a conveyor belt; 103-an upper gate; 104-a feed hopper; 105-a lower gate; 2-a transition burner tube; 3-a first burner; 4-travelling wheels; 5-supporting a tug; 6-a first gear motor; 7-passing the material frame; 8-a material passing device; 801-feed connection port; 802-a material passing guide plate; 803-discharge connection port; 9-a second gear motor; 10-supporting legs; 11-a stirring mechanism; 12-a second burner; 13-a discharge blade; 14-a second drying drum; 15-a dust removal fan; 16-a first drying drum; 17-a first outer gear ring; 18-a rolling track; 19-a frame; 20-second outer gear ring.
Detailed Description
The invention is described in detail below with reference to the drawings and specific examples:
as shown in fig. 1-2, the present embodiment provides a double-drying-drum asphalt mixer, which includes a rack 19, a first drying drum 16, a second drying drum 14, a mixing mechanism 11, a combustion mechanism for heating and drying the first drying drum 16 and the second drying drum 14, and a driving mechanism for driving the first drying drum 16, the second drying drum 14, and the mixing mechanism 11 to operate, wherein the first drying drum 16 and the second drying drum 14 are both rotatably mounted on the rack 19, the first drying drum 16 is connected to the second drying drum 14 through a material passing mechanism so as to convey a primarily dried aggregate of sand into the second drying drum 14, and the second drying drum 14 is connected to the mixing mechanism 11 so as to convey a secondarily dried aggregate of sand into the mixing mechanism 11.
In the embodiment, in order to convey the sand stone primarily heated and dried by the first drying cylinder 16 into the second drying cylinder 14 for further heating and drying, the sand stone is dried in sections to improve the drying efficiency; the material passing mechanism comprises a material passing frame 7 and a material passing device 8 arranged on the material passing frame 7, the material passing device 8 comprises a feeding connecting port 801 rotatably butted with the first drying cylinder 16, a discharging connecting port 803 rotatably butted with the second drying cylinder 14 and a material passing guide plate 802 connected between the feeding connecting port 801 and the discharging connecting port 803, and the material passing guide plate 802 is obliquely and downwardly extended from one side of the feeding connecting port 801 to one side of the discharging connecting port 803.
In the present embodiment, the feeding device 8 is installed to be fixed, and it is ensured that the first drying cylinder 16 and the second drying cylinder 14 can rotate relative to the feeding device 8; the horizontal installation position of the first drying cylinder 16 is higher than that of the second drying cylinder 14, the feeding connection port 801 is arranged at the outer side of the discharge port of the first drying cylinder 16, a rotation gap is formed between the feeding connection port 801 and the first drying cylinder 16, the discharging connection port 803 is arranged at the inner side of the discharge port of the second drying cylinder 14, and a rotation gap is formed between the discharging connection port 803 and the second drying cylinder 14.
In the present embodiment, in order to suck out the dust in the first drum 16 and the second drum 14, at the same time, the convection of air in the first drum 16 and the second drum 14 is formed; the double-drying-cylinder asphalt mixer further comprises a dust removal fan 15 arranged above the material passing device 8, and the dust removal fan 15 is communicated with the material passing device 8 to suck dust in the first drying cylinder 16 and the second drying cylinder 14.
In the embodiment, in order to heat and dry the first drying drum 16 and the second drying drum 14 respectively, the drying efficiency is improved, and in order to avoid that the flame of the combustion mechanism is directly sprayed into the drying drums, the flame directly contacts with sand and stone to cause oil adhesion; the discharge gate of first drying cylinder and second drying cylinder 14 all is equipped with ejection of compact blade 13, combustion mechanism includes first combustor 3 and second combustor 12, the outside that first drying cylinder 16 feed inlet was located to first combustor 3 is through transition burner 2 and first drying cylinder 16 intercommunication, second combustor 12 is located the outside of second drying cylinder 14 discharge gate and is through ejection of compact blade 13 and second drying cylinder 14 intercommunication, and the centre of ejection of compact blade 13 is formed with central through-hole, and the bocca and the central through-hole of second combustor 12 are connected, and the flame that the burner mechanism produced is produced in transition burner 2, or produces outside second drying cylinder 14 to guarantee that the interior only that is flame production of carrying into first drying cylinder 16 and second drying cylinder 14 is high temperature, thereby avoid the grit material to contact flame to cause the viscous oil.
In the present embodiment, to rotatably mount first drum 16 and second drum 14 to frame 19, first drum 16 and second drum 14 are rotated to dry and discharge sand; two rolling rails 18 which are coaxially and fixedly connected with the first drying cylinder 16 and the second drying cylinder 14 are annularly arranged on the outer sides of the first drying cylinder 16 and the second drying cylinder 14, and two pairs of supporting tugs 5 which are respectively in rolling fit with the two rolling rails 18 of the first drying cylinder 16 and the second drying cylinder 14 are arranged on the rack 19.
In the embodiment, in order to drive the first drying drum 16 and the second drying drum 14 to rotationally dry and discharge sand; the driving mechanism comprises a first speed reducing motor 6, a second speed reducing motor 9, a first outer gear ring 17 and a second outer gear ring 20, wherein the first outer gear ring 17 is coaxially and fixedly connected with the first drying cylinder 16, the second outer gear ring 20 is coaxially and fixedly connected with the second drying cylinder 14, the first speed reducing motor 6 is in transmission connection with the first outer gear ring 17 to drive the first drying cylinder 16 to rotate, and the second speed reducing motor 9 is in transmission connection with the second outer gear ring 20 to drive the second drying cylinder 14 to rotate.
In the embodiment, in order to realize automatic feeding, manpower is liberated, and production efficiency is improved; two stoving section of thick bamboo pitch mixer still includes feed mechanism 1, feed mechanism 1 includes feeder hopper 104, conveyer belt 102, is used for driving the conveyer belt driver of conveyer belt 102 work and locates the feed bin 101 that is used for loading the grit material on conveyer belt 102, the lower extreme of feed inlet is connected with the feed inlet of a stoving section of thick bamboo 16, the top of feeder hopper 104 is located to the one end of conveyer belt 102.
In this embodiment, to control the feed and discharge of the feed hopper 104; the feeding hopper 104 is provided with an upper gate 103 for controlling feeding of the feeding hopper 104 and a lower gate 105 for controlling discharging of the feeding hopper 104, the upper gate 103 is positioned at the upper side of the feeding hopper 104, and the lower gate 105 is positioned at the joint of the feeding hopper 104 and the first drying cylinder 16.
In the embodiment, the frame 19 can be erected on the ground in order to realize the trailable function and carry the vehicle by matching with a trailer; the bottom of the frame 19 is provided with a travelling wheel 4, and the bottom of the frame 19 can be also detachably provided with a supporting leg 10.
The specific implementation process comprises the following steps: when in use, the sand and stone material is loaded on the bin 101 of the conveyer belt 102, during feeding, the upper gate 103 of the feed hopper 104 is opened, the bin 101 moves to the upper part of the feed hopper 104 from the feed end along with the conveyer belt 102, the sand and stone material is delivered into the feed hopper 104 from the upper part of the feed hopper 104, after delivery is finished, the upper gate 103 is closed, the lower gate 105 is opened, the sand and stone material enters the first drying cylinder 16, the cooperation of the closing action of the upper gate 103 and the lower gate 105 can ensure that a sealed chamber is formed in the drying cylinder, which is convenient for the dust removing fan 15 to work and preserve heat, after the sand and stone material is heated and dehydrated in the first stage in the first drying cylinder 16, the material is overflowed by the overfeeding device 8 to the second drying cylinder 14 for heating and dehydration in the second stage, after the complete dehydration, the sand and stone material is conveyed to the stirring mechanism 11, and is mixed and stirred with molten asphalt in the stirring mechanism 11 to form asphalt mixture, wherein the stirring, the spiral blades arranged on the inner wall of the drying cylinder are used for completing the stirring, the first speed reducing motor 6 and the second speed reducing motor 9 respectively drive the first drying cylinder 16 and the second drying cylinder 14 to rotate forwards during stirring, and the first speed reducing motor 6 and the second speed reducing motor 9 respectively drive the first drying cylinder 16 and the second drying cylinder 14 to rotate backwards during discharging.
The above only is the embodiment of the present invention, not limiting the patent protection scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a two stoving section of thick bamboo pitch mixers which characterized in that: including frame, first stoving section of thick bamboo, second stoving section of thick bamboo, rabbling mechanism, be used for the burning mechanism of heating stoving to first stoving section of thick bamboo and second stoving section of thick bamboo and be used for driving the actuating mechanism of first stoving section of thick bamboo, second stoving section of thick bamboo and rabbling mechanism work, first stoving section of thick bamboo and second stoving section of thick bamboo all rotate and install in the frame, and first stoving section of thick bamboo is connected so that carry the second stoving section of thick bamboo with the grit material after the initial drying through punishment in the mechanism of passing through material mechanism and second stoving section of thick bamboo, the second stoving section of thick bamboo is connected so that carry the rabbling mechanism with the grit material after drying again in.
2. The asphalt mixer with dual drying drums of claim 1, wherein: the material passing mechanism comprises a material passing frame and a material passing device arranged on the material passing frame, the material passing device comprises a feeding connecting port in rotatable butt joint with the first drying cylinder, a discharging connecting port in rotatable butt joint with the second drying cylinder and a material passing guide plate connected between the feeding connecting port and the discharging connecting port, and the material passing guide plate is arranged by extending downwards from one side of the feeding connecting port to one side of the discharging connecting port in an inclined manner.
3. The asphalt mixer with dual drying drums of claim 2, wherein: the horizontal installation position of first drying cylinder is higher than the horizontal installation position of second drying cylinder, the rotating clearance has between the outside and the feeding connector of first drying cylinder discharge gate and the first drying cylinder are located to the feeding connector, the rotating clearance has between the outside and the ejection of compact connector of second drying cylinder feed inlet and the second drying cylinder is located to the ejection of compact connector.
4. The asphalt mixer with dual drying drums of claim 2, wherein: the double-drying-cylinder asphalt stirrer further comprises a dust removal fan arranged above the material passing mechanism, and the dust removal fan is communicated with the material passing mechanism to suck water vapor and dust in the first drying cylinder and the second drying cylinder.
5. The asphalt mixer with dual drying drums of claim 1, wherein: the discharge gate of first stoving section of thick bamboo and second stoving section of thick bamboo all is equipped with ejection of compact blade, combustion mechanism includes first combustor and second combustor, the outside of first stoving section of thick bamboo feed inlet is located to first combustor is through transition combustion tube and first stoving section of thick bamboo intercommunication, the outside of second stoving section of thick bamboo discharge gate is located to the second combustor is through ejection of compact blade and second stoving section of thick bamboo intercommunication.
6. The asphalt mixer with dual drying drums of claim 1, wherein: rolling rails are annularly arranged on the outer peripheral sides of the first drying cylinder and the second drying cylinder, and supporting rollers which are respectively matched with the rolling rails in a rolling mode are arranged on the rack.
7. The asphalt mixer with dual drying drums of claim 1, wherein: the driving mechanism comprises a first speed reducing motor, a second speed reducing motor, a first outer gear ring and a second outer gear ring, the first outer gear ring is fixedly connected with the first drying cylinder in a coaxial mode, the second outer gear ring is fixedly connected with the second drying cylinder in a coaxial mode, the first speed reducing motor is in transmission connection with the first outer gear ring to drive the first drying cylinder to rotate, and the second speed reducing motor is in transmission connection with the second outer gear ring to drive the second drying cylinder to rotate.
8. The asphalt mixer with dual drying drums of claim 1, wherein: two stoving section of thick bamboo pitch mixer still includes feed mechanism, feed mechanism includes feeder hopper, conveyer belt, is used for driving the conveyer belt driver of conveyer belt work and locates the feed bin that is used for loading grit material on the conveyer belt, the lower extreme of feeder hopper is connected with the feed inlet of a stoving section of thick bamboo, the top of feeder hopper is located to the one end of conveyer belt.
9. The asphalt mixer with dual drying drums of claim 8, wherein: be equipped with the lower gate that is used for controlling the last gate of feeder hopper feeding and is used for controlling the feeder hopper ejection of compact on the feeder hopper, the last gate is located the upside of feeder hopper, the lower gate is located the junction of feeder hopper and a stoving section of thick bamboo.
10. The asphalt mixer with dual drying drums of claim 1, wherein: the bottom of frame is equipped with the walking wheel, and the bottom of frame still can be dismantled and install the supporting leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921100712.5U CN210458863U (en) | 2019-07-15 | 2019-07-15 | Two stoving section of thick bamboo pitch mixers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921100712.5U CN210458863U (en) | 2019-07-15 | 2019-07-15 | Two stoving section of thick bamboo pitch mixers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210458863U true CN210458863U (en) | 2020-05-05 |
Family
ID=70445299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921100712.5U Expired - Fee Related CN210458863U (en) | 2019-07-15 | 2019-07-15 | Two stoving section of thick bamboo pitch mixers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210458863U (en) |
-
2019
- 2019-07-15 CN CN201921100712.5U patent/CN210458863U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200505 |