CN113023273A - Conveying equipment for efficiently conveying wood chips - Google Patents
Conveying equipment for efficiently conveying wood chips Download PDFInfo
- Publication number
- CN113023273A CN113023273A CN202110275745.9A CN202110275745A CN113023273A CN 113023273 A CN113023273 A CN 113023273A CN 202110275745 A CN202110275745 A CN 202110275745A CN 113023273 A CN113023273 A CN 113023273A
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- air
- wood chips
- gas
- conveying
- roller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/24—Details
- B65G33/26—Screws
- B65G33/265—Screws with a continuous helical surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/24—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
- B65G2201/0282—Wooden articles, e.g. logs, trunks or planks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention provides a conveying device for efficiently conveying wood chips, which comprises a conveying device for conveying the wood chips, an air injection device connected with the conveying device and used for injecting high-pressure air, and an air conveying device connected with the air injection device. In the actual implementation process, the controller controls the conveying device to convey the wood chips in the accommodating pit, the air injection device is enabled to inject air outwards at fixed intervals through the controller, and the air conveying device conveys air into the air injection device, so that the air forms high-pressure air inside the air injection device; high-pressure gas ejected by the air injection device collapses the arched top, so that the wood chips fall down, the conveying equipment continuously works, and the conveying efficiency is further improved.
Description
Technical Field
The invention relates to the technical field of papermaking, in particular to a conveying device for efficiently conveying wood chips.
Background
Paper is the most commonly used article in our daily lives and is generally made by combining aqueous suspensions of pulped plant fibers on a wire in a staggered manner, preliminarily dewatering, compressing, and drying. Within the modern papermaking industry; crushing wood into wood chips by a crusher, and pulping the wood chips to make paper; after wood is crushed, the wood chips are generally piled in the open air, and when the wood chips are needed to be used, the wood chips are taken by a spiral material taking machine.
In the prior art, a stacking pit is arranged for stacking wood chips, and a screw conveyor is arranged at the bottom of the stacking pit; in the practical implementation process, after part of wood chips are conveyed outwards, the wood chips above the spiral conveyor often form an arch top, the wood chips do not fall down, and the spiral conveyor at the bottom of the stacking pit idles, so that the conveying efficiency is reduced.
Accordingly, the present inventors have made extensive studies to solve the above problems and have made the present invention.
Disclosure of Invention
The invention aims to provide conveying equipment for efficiently conveying wood chips, which solves the problems that wood chips form an arched top and a spiral conveyor idles in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme:
the conveying equipment for efficiently conveying the wood chips comprises a conveying device for conveying the wood chips, an air injection device connected with the conveying device and used for injecting high-pressure air, and an air conveying device connected with the air injection device.
The conveying device comprises a screw rod; the spiral rod comprises a roller and spiral blades arranged outside the roller; the drum has an air injection part; the air injection device comprises an air storage assembly arranged in the roller.
The roller comprises more than two air injection parts which are arranged along the axial direction of the roller.
The gas storage assembly comprises a gas storage cylinder for storing gas; the air cylinder is rotatably connected with the roller.
The air injection part comprises more than two air injection holes which surround the circumferential surface of the roller and equally divide the circumference of the roller; the air cylinder comprises an air vent arranged at the upper end of the air cylinder and an air valve for controlling the air vent to release air.
The air storage assembly further comprises more than two sealing pieces connected between the air storage cylinder and the roller.
The sealing element, the air storage cylinder and the roller are connected to form an air passage for air to pass through; the air passage is connected between the air release hole and the air injection hole.
The gas injection hole comprises a blocking piece which is positioned in the hole and blocks the gas injection hole; the plugging piece comprises an air outlet pipe and a plug connected with the air outlet pipe.
The gas outlet pipe comprises an inlet for gas to enter and an outlet for gas to be discharged; the outlet pipe is tapered from the inlet to the outlet.
The plug comprises an elastic block arranged at the outlet; the resilient block includes an inner bore connected to the outlet.
The gas transmission device comprises a gas transmission cylinder; the gas transmission cylinder comprises a cylinder main body and a pressing plate connected with the cylinder main body; the cylinder main body comprises an air inlet hole for air to enter, an air outlet hole for air to be discharged, an air storage chamber between the air inlet hole and the air outlet hole, and a driving assembly for driving the pressing plate to reciprocate.
The gas transmission cylinder also comprises a partition plate for plugging the gas outlet hole and a first switch connected with the partition plate.
The partition plate comprises a plate main body which is arranged in the cylinder main body and is rotationally connected with the cylinder main body.
The panel body has a lower rim at a lower end of the panel body; the lower frame is rotationally connected with the bottom wall of the plate main body; the partition further includes a first torsion spring disposed between the bottom wall and the lower frame.
The first switch comprises a first end part which is arranged outside the gas storage chamber and abuts against the top plate main body, a second end part which is arranged inside the gas storage chamber, a connecting part connected between the first end part and the second end part, and an elastic part connected with the second end part.
The cylinder main body comprises a containing groove which is positioned at the upper end of the cylinder main body and communicated with the air storage chamber; the first end part comprises a baffle plate in sliding connection with the cylinder main body, and the second end part comprises a sliding block which is positioned in the accommodating groove and is in sliding connection with the accommodating groove; the elastic piece comprises a pressure spring which is abutted between the sliding block and the top end of the accommodating groove.
The gas transmission cylinder also comprises a second switch which is arranged at the air inlet and used for switching the air inlet.
The cartridge body comprises a support frame within the cartridge body; the second switch comprises a sealing plate which is used for sealing the air inlet and is rotatably connected with the support frame, and a second torsion spring which is connected between the sealing plate and the support frame.
The pressure plate is connected with the cylinder main body in a sliding mode.
The driving assembly comprises a swing arm connected with the pressing plate, a wheel disc connected with the swing arm and a driving motor driving the wheel disc to rotate.
After the technical scheme is adopted, in the actual implementation process, the controller controls the conveying device to convey the wood chips in the accommodating pit, the air injection device is enabled to inject air outwards at fixed intervals through the controller, and the air conveying device conveys air into the air injection device to enable the air to form high-pressure air in the air injection device; high-pressure gas ejected by the air injection device collapses the arched top, so that the wood chips fall down, the conveying equipment continuously works, and the conveying efficiency is further improved.
Drawings
FIG. 1 is a schematic view of a first perspective structure of the present invention;
FIG. 2 is an assembled cross-sectional view of the drum, seal and air reservoir of the present invention;
FIG. 3 is an enlarged view of a portion of the area A of the present invention;
FIG. 4 is a schematic view of a second perspective structure of the present invention;
FIG. 5 is a schematic view of the gas delivery device of the present invention;
FIG. 6 is a partial cross-sectional view of the gas delivery device of the present invention;
in the figure:
a conveying device 1; a gas transmission device 2; a drum 11; an air injection section 12; an air cylinder 31; gas injection holes 121; an air bleed hole 311; a seal 32; an air passage 33; an outlet pipe 1211; a plug 1212; an inner bore 12121; an air delivery cylinder 21; a cylinder main body 211; a platen 212; an intake hole 213; an exhaust vent 214; a gas reservoir 215; a drive assembly 216; a partition 217; a first switch 218; a receiving groove 2111; a baffle 2181; a slider 2182; a pressure spring 2183; a second switch 219; a support 2112; a closing plate 2191; a swing arm 2161; a wheel 2162.
Detailed Description
In order to further explain the technical solution of the present invention, the following detailed description is given by way of specific examples.
As shown in fig. 1 to 6, a conveying apparatus for conveying wood chips with high efficiency comprises a conveying device 1 for conveying wood chips, an air injection device connected with the conveying device 1 for injecting high-pressure air, and an air conveying device 2 connected with the air injection device. In the practical implementation process, the controller controls the conveying device 1 to convey the wood chips in the accommodating pit, the air injection device is enabled to inject air outwards at fixed intervals through the controller, and the air conveying device 2 is used for conveying air into the air injection device, so that the air forms high-pressure air inside the air injection device; high-pressure gas ejected by the air injection device collapses the arched top, so that the wood chips fall down, the conveying equipment continuously works, and the conveying efficiency is further improved.
Preferably, the delivery device 1 comprises a screw; the screw rod comprises a roller 11 and a helical blade arranged outside the roller 11; the drum 11 has an air jet part 12; the air injection device comprises an air storage assembly arranged in the roller 11. In the actual implementation process, high-pressure gas is stored through the gas storage assembly arranged in the roller 11, and the high-pressure gas is sprayed outwards through the gas spraying part 12, so that the high-pressure gas impacts the arched top, the arched top is broken, wood chips fall down, idle rotation of the screw rod is avoided, and the conveying efficiency is further improved.
Preferably, the drum 11 includes two or more air injection parts 12 arranged in the axial direction of the drum 11. In the practical implementation process, the plurality of air injection parts 12 are used for injecting air, so that the injected air can impact the fragile position of the arch top, and the success rate of collapsing the arch top can be effectively improved.
Preferably, the gas trap assembly comprises a gas reservoir 31 for storing gas; the air cylinder 31 is rotatably connected to the drum 11. In the practical implementation process, the roller 11 rotates continuously, wood chips are conveyed outwards continuously through the helical blades, and meanwhile, the air storage cylinder 31 is fixed, so that the air storage cylinder 31 is favorable for storing high-pressure gas.
Preferably, the air injection part 12 comprises more than two air injection holes 121 which surround the circumference surface of the roller 11 and equally divide the circumference of the roller 11; the air cylinder 31 includes an air vent 311 disposed at an upper end of the air cylinder 31 and an air valve for controlling air release from the air vent 311. In the practical implementation process, the air vent 311 is always upward, when the controller controls the air valve to vent air, the roller 11 rotates to enable the air injection holes 121 to be communicated with the air vent 311, the air is sprayed upwards, the air is prevented from being sprayed disorderly, the use efficiency of high-pressure air is improved, and the high-pressure air directly and upwards breaks down the arched roof. More than two gas injection holes are spirally arranged along the axial direction; the high-pressure gas sprayed out through different gas spraying holes has different spraying positions, so that the high-pressure gas hits the arched top at different positions, and the arched top can be further collapsed, and the wood chips fall down.
Preferably, the air trap assembly further comprises two or more sealing members 32 connected between the air cylinder 31 and the drum 11. In practical implementation, the sealing element 32 comprises a sealing bearing, and the gas is prevented from leaking through the sealing element 32, so that the ejected gas has stronger impact force, which is beneficial to breaking down the arch crown.
Preferably, the sealing member 32, the air cylinder 31 and the drum 11 are connected to form an air passage 33 for passing air; the air passage 33 is connected between the air release hole 311 and the air injection hole 121. In the practical implementation process, high-pressure gas enters the air passage 33 through the gas release hole 311 and enters the gas injection hole 121 from the air passage 33 to be injected, so that gas leakage is prevented, the injected gas has stronger impact force, and the arch roof is favorably collapsed.
Preferably, the gas injection holes 121 comprise a blocking piece which is positioned in the hole to block the gas injection holes 121; the blocking member includes an outlet 1211 and a plug 1212 connected to the outlet 1211. In actual implementation, through shutoff piece shutoff fumarole 121 when not spouting, avoid saw-dust and wood flour to get into and block up fumarole 121 in the fumarole 121.
Preferably, the outlet pipe 1211 includes an inlet through which the gas is introduced and an outlet through which the gas is discharged; the outlet pipe 1211 tapers from the inlet to the outlet. In practical implementation, the gas enters from the inlet and is discharged from the outlet, and the gas pipe is tapered to further pressurize the gas, so that the ejected gas has larger impact force.
Preferably, the plug 1212 includes an elastic block disposed at the outlet; the resilient block includes an inner bore 12121 connected to the outlet. In practical implementation, the inner hole 12121 of the elastic block is in a closed state, and after high-pressure air is ejected from the outlet into the inner hole 12121, the air is pressurized from the inner hole 12121 to cause the inner wall of the elastic block to contract outwards, the inner hole 12121 expands, and the high-pressure air is ejected from the inner hole 12121 to the outside of the air injection hole 121.
Preferably, the gas transmission means 2 comprise a gas transmission cylinder 21; the gas transmission cylinder 21 includes a cylinder main body 211, a pressing plate 212 connected to the cylinder main body 211; the cartridge main body 211 includes an intake hole 213 through which gas enters, an exhaust hole 214 through which gas is discharged, an air trap chamber 215 between the intake hole 213 and the exhaust hole, and a driving assembly 216 driving the reciprocating movement of the platen 212. In the practical implementation process, the driving assembly 216 drives the pressing plate 212 to compress the space of the air storage chamber 215, so that the air pressure is increased, and the air outlet is opened to output air from the air outlet; the driving component 216 drives the pressing plate 212 to return, the air outlet hole is closed, and air enters the air storage chamber 215 through the air inlet hole 213; the driving component 216 drives the pressing plate 212 to reciprocate, so that the air transmission device 2 continuously transmits air into the air storage cylinder 31; at the same time, the air pressure in the air cylinder 31 is continuously increased.
Preferably, the gas transmission cylinder 21 further comprises a partition 217 for blocking the gas outlet hole and a first switch 218 connected to the partition 217. In practical implementation, the air outlet hole is sealed by the partition 217, and the partition 217 is opened or closed by the first switch 218.
Preferably, the partition 217 includes a plate body disposed in the cylinder body 211 and rotatably coupled to the cylinder body 211. In practice, after the air storage chamber 215 is compressed, the air pressure causes the first switch 218 to open the diaphragm 217, the diaphragm 217 rotates outward of the air storage chamber 215, the air is discharged through the air outlet, and the diaphragm 217 returns after the air pressure is discharged.
Preferably, the panel body has a lower rim at a lower end of the panel body; the lower frame is rotationally connected with the bottom wall of the plate main body; the partition 217 further includes a first torsion spring disposed between the bottom wall and the lower frame. In practice, when the plate body is rotated out of the air reservoir 215, the first torsion spring exerts a force, and after compressed air passes through the air outlet hole, the first torsion spring returns the plate body to re-close the air reservoir 215.
Preferably, the first switch 218 includes a first end portion located outside the gas storage chamber 215 and abutting against the plate body, a second end portion located inside the gas storage chamber 215, a connection portion connected between the first end portion and the second end portion, and an elastic member connected to the second end portion. In the practical implementation process, the elastic piece is abutted against the second end part, so that the first end part is abutted against the plate main body, and the plate main body is clamped to prevent the plate main body from rotating; when the driving assembly 216 drives the pressing plate 212 to compress the air storage chamber 215, the air pressure in the air storage chamber 215 increases, the compressed air presses the second end portion, and simultaneously presses the elastic member to lift the second connecting end portion and the first connecting end portion, so that the plate body is turned over to open the air outlet.
Preferably, the cartridge body 211 includes a receiving groove 2111 at an upper end of the cartridge body 211 and communicating with the gas storage chamber 215; the first end part comprises a blocking piece 2181 in sliding connection with the cylinder main body 211, and the second end part comprises a sliding block 2182 which is positioned in the accommodating groove 2111 and is in sliding connection with the accommodating groove 2111; the elastic element comprises a pressure spring 2183 which is abutted between the sliding block 2182 and the top end of the accommodating groove 2111. In the practical implementation process, further, the sliding block 2182 is lifted along the accommodating groove 2111 through air pressure, the blocking piece 2181 is lifted simultaneously, when the blocking piece 2181 is lifted to a certain height, the blocking piece 2181 does not abut against the plate main body, the plate main body is turned over, and high-pressure air is discharged through the air outlet instantly; after the ejection, the plate body is restored, and the pressure spring 2183 presses the slider 2182 to lower the stopper 2181 and clamp the plate body again.
Preferably, the gas cylinder 21 further includes a second switch 219 provided at the gas inlet hole 213 to switch the gas inlet hole 213. In actual implementation, the air inlet hole 213 is opened or closed by the second switch 219, and air enters the air storage chamber 215 from the outside.
Preferably, the cartridge body 211 includes a support shelf 2112 within the cartridge body 211; the second switch 219 includes a sealing plate 2191 for closing the air inlet hole 213 and rotatably connected to the support 2112, and a second torsion spring connected between the sealing plate 2191 and the support 2112. In practical implementation, when the driving assembly 216 drives the pressing plate 212 to return, the air outlet is closed, the air pressure of the air storage chamber 215 is lower than that of the outside, the outside air presses the sealing plate 2191 to rotate the sealing plate 2191, and the second torsion spring stores the force of the air entering the air storage chamber 215 from the outside; when air enters the air storage chamber 215, the air pressure in the air storage chamber 215 is communicated with the external air pressure, and the second torsion spring enables the sealing plate 2191 to return to close the air inlet hole 213 again.
Preferably, the pressure plate 212 is slidably coupled to the cartridge body 211. Furthermore, the reciprocating motion of the pressure plate 212 is smoother and more efficient, which is beneficial to improving the gas transmission efficiency.
Preferably, the driving assembly 216 includes a swing arm 2161 connected to the pressure plate 212, a wheel disc 2162 connected to the swing arm 2161, and a driving motor for driving the wheel disc 2162 to rotate. In the practical implementation process, the wheel disc 2162 is driven by the driving motor to rotate to drive the swing arm 2161 to reciprocate, so that the pressure plate 212 reciprocates to continuously convey gas into the gas storage cylinder 31.
The product form of the present invention is not limited to the embodiments and examples shown in the present application, and any suitable changes or modifications of the similar ideas should be made without departing from the patent scope of the present invention.
Claims (10)
1. A conveying equipment for efficiently conveying wood chips is characterized in that: comprises a conveying device for conveying wood chips, an air injection device which is connected with the conveying device and used for injecting high-pressure air, and an air conveying device which is connected with the air injection device.
2. The apparatus for efficiently transporting wood chips according to claim 1, wherein: the conveying device comprises a screw rod; the spiral rod comprises a roller and spiral blades arranged outside the roller; the drum has an air injection part; the air injection device comprises an air storage assembly arranged in the roller.
3. The apparatus for efficiently transporting wood chips as set forth in claim 2, wherein: the roller comprises more than two air injection parts which are arranged along the axial direction of the roller.
4. The apparatus for efficiently transporting wood chips as set forth in claim 3, wherein: the gas storage assembly comprises a gas storage cylinder for storing gas; the air cylinder is rotatably connected with the roller.
5. The apparatus for efficiently transporting wood chips as set forth in claim 4, wherein: the air injection part comprises more than two air injection holes which surround the circumferential surface of the roller and equally divide the circumference of the roller; the air cylinder comprises an air vent arranged at the upper end of the air cylinder and an air valve for controlling the air vent to release air.
6. The apparatus for efficiently transporting wood chips as set forth in claim 5, wherein: the air storage assembly further comprises more than two sealing pieces connected between the air storage cylinder and the roller.
7. The apparatus for efficiently transporting wood chips as set forth in claim 6, wherein: the sealing element, the air storage cylinder and the roller are connected to form an air passage for air to pass through; the air passage is connected between the air release hole and the air injection hole.
8. The apparatus for efficiently transporting wood chips as set forth in claim 7, wherein: the gas injection hole comprises a blocking piece which is positioned in the hole and blocks the gas injection hole; the plugging piece comprises an air outlet pipe and a plug connected with the air outlet pipe.
9. The apparatus for transporting highly efficient wood chips as set forth in claim 8, wherein: the gas outlet pipe comprises an inlet for gas to enter and an outlet for gas to be discharged; the outlet pipe is tapered from the inlet to the outlet.
10. The apparatus for efficiently transporting wood chips according to claim 9, wherein: the plug comprises an elastic block arranged at the outlet; the resilient block includes an inner bore connected to the outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110275745.9A CN113023273B (en) | 2021-03-15 | 2021-03-15 | Conveying equipment for efficiently conveying wood chips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110275745.9A CN113023273B (en) | 2021-03-15 | 2021-03-15 | Conveying equipment for efficiently conveying wood chips |
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| Publication Number | Publication Date |
|---|---|
| CN113023273A true CN113023273A (en) | 2021-06-25 |
| CN113023273B CN113023273B (en) | 2023-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110275745.9A Active CN113023273B (en) | 2021-03-15 | 2021-03-15 | Conveying equipment for efficiently conveying wood chips |
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| CN (1) | CN113023273B (en) |
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| JPH01139138A (en) * | 1987-07-29 | 1989-05-31 | Mitsubishi Kasei Corp | Deaerator for powder and granule |
| JPH06183540A (en) * | 1992-12-18 | 1994-07-05 | Osaka Shosen Mitsui Senpaku Kk | Screw conveyer device |
| JP2001139153A (en) * | 1999-11-11 | 2001-05-22 | Dainippon Ink & Chem Inc | Powdery/granular material supply device and manufacturing method of toner for electrostatic image development using it |
| JP2001315972A (en) * | 2000-05-01 | 2001-11-13 | Takuma Co Ltd | Ash feeding device |
| CN202148461U (en) * | 2011-06-16 | 2012-02-22 | 福建省三明市三洋造纸机械设备有限公司 | Discharge pulping spiral of double-roller pulp washer |
| CN206011339U (en) * | 2016-08-19 | 2017-03-15 | 泗阳县祥和木业有限公司 | A kind of wood chip conveyer device |
| CN207107893U (en) * | 2017-04-11 | 2018-03-16 | 北京中荣慧谷新能源科技有限公司 | pneumatic conveying pipeline |
| CN210133610U (en) * | 2018-12-26 | 2020-03-10 | 山东晨鸣纸业集团股份有限公司 | Wood chip feeding spiral shaft head protection device |
| CN210914251U (en) * | 2019-10-17 | 2020-07-03 | 宜昌清江茗研生物科技有限公司 | Feeding system in tea polyphenol production extraction process |
| CN212558434U (en) * | 2020-06-11 | 2021-02-19 | 南京雄凯过滤设备有限公司 | Powder pressurization pneumatic conveying cone of ventilating |
-
2021
- 2021-03-15 CN CN202110275745.9A patent/CN113023273B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01139138A (en) * | 1987-07-29 | 1989-05-31 | Mitsubishi Kasei Corp | Deaerator for powder and granule |
| JPH06183540A (en) * | 1992-12-18 | 1994-07-05 | Osaka Shosen Mitsui Senpaku Kk | Screw conveyer device |
| JP2001139153A (en) * | 1999-11-11 | 2001-05-22 | Dainippon Ink & Chem Inc | Powdery/granular material supply device and manufacturing method of toner for electrostatic image development using it |
| JP2001315972A (en) * | 2000-05-01 | 2001-11-13 | Takuma Co Ltd | Ash feeding device |
| CN202148461U (en) * | 2011-06-16 | 2012-02-22 | 福建省三明市三洋造纸机械设备有限公司 | Discharge pulping spiral of double-roller pulp washer |
| CN206011339U (en) * | 2016-08-19 | 2017-03-15 | 泗阳县祥和木业有限公司 | A kind of wood chip conveyer device |
| CN207107893U (en) * | 2017-04-11 | 2018-03-16 | 北京中荣慧谷新能源科技有限公司 | pneumatic conveying pipeline |
| CN210133610U (en) * | 2018-12-26 | 2020-03-10 | 山东晨鸣纸业集团股份有限公司 | Wood chip feeding spiral shaft head protection device |
| CN210914251U (en) * | 2019-10-17 | 2020-07-03 | 宜昌清江茗研生物科技有限公司 | Feeding system in tea polyphenol production extraction process |
| CN212558434U (en) * | 2020-06-11 | 2021-02-19 | 南京雄凯过滤设备有限公司 | Powder pressurization pneumatic conveying cone of ventilating |
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| CN113023273B (en) | 2023-05-05 |
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