CN110171716A - A kind of bulk materials conveyer - Google Patents
A kind of bulk materials conveyer Download PDFInfo
- Publication number
- CN110171716A CN110171716A CN201910601861.8A CN201910601861A CN110171716A CN 110171716 A CN110171716 A CN 110171716A CN 201910601861 A CN201910601861 A CN 201910601861A CN 110171716 A CN110171716 A CN 110171716A
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- China
- Prior art keywords
- small barrel
- small
- barrel
- bulk materials
- rack tube
- Prior art date
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- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 67
- 238000009423 ventilation Methods 0.000 claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 238000007599 discharging Methods 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims description 10
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000428 dust Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/06—Gas pressure systems operating without fluidisation of the materials
-
- 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
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—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
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention discloses a kind of bulk materials conveyers, including driving mechanism etc., feeding unit includes small barrel, driving mechanism connects small barrel, small barrel is mounted in rack tube, and rack tube top is equipped with the pressure ventilation pipe for cooperating small barrel, and wind direction is equipped with the mixing tube for cooperating small barrel discharging under pressure ventilation pipe, small barrel connection pressure ventilation pipe and mixing tube, mixing tube are mounted on rack tube lower part；Hopper top is equipped with the belt of conveying bulk materials.Driving mechanism drives small barrel to move in rack tube, small barrel is moved to below hopper, bulk materials fall into small barrel by hopper, driving mechanism drives the small barrel for filling material to be moved to pressure ventilation pipe and mixing tube, under the high-pressure blast effect of pressure ventilation pipe, material in small barrel is blown into the material and gas mixing that mixing tube carries out next step, it is equivalent to and bulk is carried by small barrel, when small barrel is when being arranged as multiple continuous structures, continual carry out material transfer will be met.
Description
Technical field
The present invention relates to block material transferring technology field, specifically a kind of coal or gangue equal diameter are in 30-
The bulk materials conveyer of 100mm.
Background technique
Powder grain material conveying equipment (sending warehouse pump), the material of conveying are powdery or granular (partial size < 30mm), bulk materials
It pumps and conveys according to storehouse, need first be crushed bulk materials, sieve, again using hair after concentrating satisfactory material
Storehouse pump is sent to be conveyed；Directly the block material of diameter 30-100mm is conveyed according to storehouse pump, in charging, storehouse pump top
When reaching storehouse stock position and feed time is closed, bulk materials can be squeezed in valve valve, and valve is caused not close normally
It closes；In conveying, pipeline is extremely easy blocking when closed；Sending warehouse pump cannot be completed to be continuously conveyed during transportation；Conveying
When measuring bigger, the conveying number of sending warehouse pump within a certain period of time is limited, and the mounting height of sending warehouse pump is bigger, is had
Installing limited place can not install.
A kind of equipment is now needed to carry out the conveying specifically for bulk materials.
Summary of the invention
The present invention is exactly to provide a kind of bulk materials conveyer to solve deficiencies of the prior art, is driven
Mechanism drives small barrel to move in rack tube, and small barrel is moved to below hopper, and bulk materials are fallen into small by hopper
Barrel, driving mechanism drive the small barrel for filling material to be moved to pressure ventilation pipe and mixing tube, under the high-pressure blast effect of pressure ventilation pipe,
Material in small barrel be blown into mixing tube carry out next step material and gas mixing, be equivalent to by small barrel to bulk into
Row is carried, and when small barrel is when being arranged as multiple continuous structures, will meet continual carry out material transfer.
The technical scheme adopted by the invention to solve the technical problem is that:
A kind of bulk materials conveyer, including driving mechanism, rack tube, feeding unit, feeding unit include small barrel, are driven
Motivation structure connects small barrel, and small barrel is mounted in rack tube, and driving mechanism drives small barrel to move in rack tube, rack tube
Top is equipped with the pressure ventilation pipe for cooperating small barrel, and wind direction is equipped with the mixing tube for cooperating small barrel discharging, small barrel connection under pressure ventilation pipe
Pressure ventilation pipe and mixing tube, mixing tube are mounted on rack tube lower part；
Rack tube is equipped with the hopper for cooperating small hopper, and hopper top is equipped with the belt of conveying bulk materials.
The feeding unit further includes small powder tub, and driving mechanism includes motor, and motor connects speed reducer, speed reducer
Output shaft is drive shaft, drives axis connection small powder tub, and multiple small barrels are mounted in small powder tub, and multiple small barrels are around drive
Moving axis is uniformly distributed.
Rack tube includes rack tube ontology, and rack tube body bottom portion is equipped with the envelope flitch that cooperation blocks small barrel bottom, is driven
Moving axis passes through rack tube body bottom portion and connects small cartridge holder, is provided with out in the envelope flitch of pressure ventilation pipe and mixing tube communicating position
Expect hole.
The mixing tube side is connected to high-pressure air source.
Rack tube includes rack tube ontology, and pressure ventilation pipe and hopper are installed on rack tube ontology.
There are two types of forms for the structure of small barrel, the first is cylindrical drum, and adjacent small barrel external cylindrical surface is tangent.
Second is small barrel cross sectional shape to be fan-shaped, is separated between adjacent small barrel by barrel partition.
The small barrel bottom is equipped with bottom cover, and bottom cover is connected to small barrel bottom by bottom cover shaft, and bottom cover is located at small
Between barrel and envelope flitch, bottom cover lower part is equipped with the first rubber wheel walked in envelope flitch.
The bottom cover lower part be equipped with the second rubber wheel, the second rubber wheel be located at the first rubber wheel walking front, second
The distance of rubber wheel distance of shaft centers bottom cover is less than the distance of the first rubber wheel distance of shaft centers bottom cover, and discharge hole is in the second rubber wheel walking side
It is provided with the bottom cover skewed slot for tilting upward guidance the first rubber wheel and the second rubber wheel upwards.
The beneficial effects of the present invention are:
1, driving mechanism drives small barrel to move in rack tube, and small barrel is moved to below hopper, and bulk materials are logical
It crosses hopper and falls into small barrel, driving mechanism drives the small barrel for filling material to be moved between pressure ventilation pipe and mixing tube, pressing
Under the high-pressure blast effect of air hose, the material in small barrel is blown into the material and gas mixing that mixing tube carries out next step, quite
Bulk is carried in by small barrel, when small barrel is when being arranged as multiple continuous structures, will be met continual
Carry out material transfer.
2, drive shaft turns drive multiple small barrels successively to pass through hopper lower part, set motor rotation speed, small barrel
It is operated after filling between pressure ventilation pipe and mixing tube, the high-pressure blast effect through pressure ventilation pipe, bulk materials are transported to mixing
Pipe, barrel is vertical direction, and the direction of the discharging of small barrel and the direction of air-flow are identical, and material is easier to be seen off, and
High-pressure blast blows, and mixing tube has certain negative pressure, clean and environmental protection, no dust pollution to small barrel bottom.
3, in order to guarantee small barrel bottom to the convenience of the closure of material and opening material leakage, designing small barrel is upper and lower opening
Cylinder, while devising envelope flitch, when charging by hopper and rotating conveying process, envelope flitch is tightly attached to small barrel bottom
Portion is provided with discharge hole in the envelope flitch of pressure ventilation pipe and mixing tube communicating position, can be connected to when small barrel is rotated to discharge hole
Pressure ventilation pipe and mixing tube carry out discharging, small barrel and envelope flitch are designed as wear-resistant material, ensure that the reliability of equipment.
4, rack tube body upper part is also that plate blocks, and only leaves the installing port of pressure ventilation pipe and hopper, is realized complete close
Conveying is closed, while with the presence of the negative pressure of mixing tube, avoiding dust pollution.
5, the small barrel of cylinder it is tangent can the continual splicing in rotary course, ensure that conveying material it is continuous
Property.Only the small barrel of sector that separates of barrel partition can also the continual splicing in rotary course, preferably ensure that defeated
Send the continuity of material.
6, machine spindle is connect by whole equipment by shaft coupling with retarder motor, and structure is simple, and vulnerable part is less.
5, the material in small barrel and between envelope flitch be sliding friction, conveying resistance is increased, then to envelope flitch
There is higher requirement, so increasing this feature of bottom cover, the discharge hole of envelope flitch makes the first rubber wheel when discharging
Support is lost, bottom cover is opened downwards, and discharging is carried out, and small barrel continues passive advance, and the second rubber wheel is inclined by bottom cover skewed slot
Guiding role obliquely slowly closes bottom cover, then the first rubber wheel and the contact of bottom cover skewed slot, since rubber wheel has centainly
Elasticity, so the first rubber wheel has certain pressure by plugging action of the envelope flitch to bottom cover, so that bottom cover blocks more
Tightly.
This mode eliminates material to the direct friction of envelope flitch, and envelope flitch can be designed as to guide rail form, saves
Driving force when rotation.
Detailed description of the invention
Fig. 1 is overall structure plan view of the present invention；
Fig. 2 is the feeding unit assembled view that the small barrel of the present invention is cylindrical drum；
Fig. 3 is the feeding unit assembly half sectional view that the small barrel of the present invention is cylindrical drum；
Fig. 4 is that the small barrel section of the present invention is fan-shaped feeding unit top view；
Fig. 5 is bottom cover of the present invention and the view that envelope flitch cooperates.
In figure: 1- driving mechanism, 2- rack tube, 3- feeding unit, 4- pressure ventilation pipe, 5- mixing tube, 6- belt, 11- motor,
12- speed reducer, 13- drive shaft, 21- rack tube ontology, 22- envelope flitch, 23- hopper, 24- discharge hole, 25- bottom cover skewed slot,
The small barrel of 31-, 32- small powder tub, 33- barrel partition, 34- bottom cover shaft, 35- bottom cover, the first rubber wheel of 36-, the second rubber of 37-
Rubber tire.
Specific embodiment
In order to clearly illustrate the technical characterstic of this programme, below by specific embodiment, and its attached drawing is combined, to this
Invention is described in detail.Following disclosure provides many different embodiments or example is used to realize different knots of the invention
Structure.In order to simplify disclosure of the invention, hereinafter the component of specific examples and setting are described.In addition, the present invention can be with
Repeat reference numerals and/or letter in different examples.This repetition is that for purposes of simplicity and clarity, itself is not indicated
Relationship between various embodiments and/or setting is discussed.It should be noted that illustrated component is not necessarily to scale in the accompanying drawings
It draws.Present invention omits the descriptions to known assemblies and treatment technology and process to avoid the present invention is unnecessarily limiting.Art
The orientation or positional relationship of the instructions such as language "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second ", " third " are used for description purposes only, and it should not be understood as instruction or dark
Show relative importance.In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
As shown in Fig. 1, a kind of bulk materials conveyer, including driving mechanism 1, rack tube 2, feeding unit 3, conveyer
Structure 3 includes small barrel 31, and driving mechanism 1 connects small barrel 31, and small barrel 31 is mounted in rack tube 2, and driving mechanism 1 drives small
Barrel 31 moves in rack tube 2, and 2 top of rack tube is equipped with the pressure ventilation pipe 4 for cooperating small barrel 31, and the lower wind direction of pressure ventilation pipe 4 is equipped with
The mixing tube 5 for cooperating small barrel 31 to discharge, small barrel 31 is connected to pressure ventilation pipe 4 and mixing tube 5, mixing tube 5 are mounted under rack tube 2
Portion；Rack tube 2 is equipped with the hopper 23 for cooperating small barrel 31 to feed, and 23 top of hopper is equipped with the belt of conveying bulk materials
6。
Driving mechanism 1 drives small barrel 31 to move in rack tube 2, and small barrel 31 is moved to 23 lower section of hopper, bulk
Material falls into small barrel 31 by hopper 23, and driving mechanism 1 drives the small barrel 31 for filling material to be moved to pressure ventilation pipe 4 and mix
Between expects pipe 5, under the high-pressure blast effect of pressure ventilation pipe 4, the material in small barrel 31 is blown into the object that mixing tube 5 carries out next step
Material and gas mixing, are equivalent to and are carried by small barrel 31 to bulk, be arranged as multiple continuous knots when small barrel 31
When structure, continual carry out material transfer will be met.
The feeding unit 3 further includes small powder tub 32, and driving mechanism 1 includes motor 11, and motor 11 connects speed reducer
12, the output shaft of speed reducer 12 is drive shaft 13, and drive shaft 13 connects small powder tub 32, and multiple small barrels 31 are mounted on small barrel
On frame 32, multiple small barrels 31 are uniformly distributed around drive shaft 13.
Rack tube 2 includes rack tube ontology 21, and 21 bottom of rack tube ontology is equipped with the envelope that cooperation blocks small 31 bottom of barrel
Flitch 22, drive shaft 13 pass through 21 bottom of rack tube ontology and connect small cartridge holder 32, are connected to position with mixing tube 5 in pressure ventilation pipe 4
Discharge hole 24 is provided in the envelope flitch 22 set.
Drive shaft 13 rotates, and multiple small barrels 31 is driven successively to pass through 23 lower part of hopper, sets 11 velocity of rotation of motor,
Small barrel 31 is operated between pressure ventilation pipe 4 and mixing tube 5 after filling, and the high-pressure blast through pressure ventilation pipe 4 acts on, bulk materials quilt
It is delivered to mixing tube 5, small barrel 31 is vertical direction, and the direction of the discharging of small barrel 31 is identical as the direction of air-flow, material ratio
It is easier to be seen off, and high-pressure blast blows, mixing tube 5 has certain negative pressure, clean and environmental protection, no fugitive dust dirt to small barrel bottom
Dye.
5 side of mixing tube is connected to high-pressure air source.In order to guarantee closure and opening of small 31 bottom of barrel to material
The convenience of material leakage designs small barrel 31 and is the cylinder of upper and lower opening, while devising envelope flitch 22, charges by hopper 23
When with rotation conveying process, envelope flitch 22 is tightly attached to small 31 bottom of barrel, in the envelope material of 5 communicating position of pressure ventilation pipe 4 and mixing tube
It is provided with discharge hole 24 on plate 22, pressure ventilation pipe 4 and mixing tube 5 can be connected to when small barrel 31 is rotated to discharge hole 24, carry out discharging,
Small barrel 31 and envelope flitch 22 are designed as wear-resistant material, ensure that the reliability of equipment.
Rack tube 2 includes rack tube ontology 21, and pressure ventilation pipe 4 and hopper 23 are installed on rack tube ontology 21.Bracket
21 top of cylinder ontology is also that plate blocks, and only leaves the installing port of pressure ventilation pipe 4 and hopper 23, realizes totally-enclosed conveying, together
When with the presence of mixing tube 5 negative pressure, avoid dust pollution.
There are two types of forms for the structure of small barrel 31, the first is cylindrical drum, and adjacent small 31 external cylindrical surface of barrel is tangent.Cylinder
Small barrel 31 it is tangent can the continual splicing in rotary course, ensure that conveying material continuity.
For second small 31 cross sectional shape of barrel for sector, as shown in Fig. 5, between adjacent small barrel 31 by barrel every
Plate 33 separates.Only the small barrel 31 of sector that separates of barrel partition 33 can also the continual splicing in rotary course, more preferably
Ensure that conveying material continuity.
31 bottom of small barrel is equipped with bottom cover 35, and bottom cover 35 is connected to small 31 bottom of barrel by bottom cover shaft 34,
Bottom cover 35 is located between small barrel 31 and envelope flitch 22, and 35 lower part of bottom cover is equipped with the first rubber wheel walked in envelope flitch 22
36。
35 lower part of bottom cover is equipped with the second rubber wheel 37, before the second rubber wheel 37 is located at the walking of the first rubber wheel 36
Side, distance of the distance less than 36 distance of shaft centers bottom cover 35 of the first rubber wheel of 37 distance of shaft centers bottom cover 35 of the second rubber wheel, discharge hole 24
The bottom cover skewed slot for tilting upward guidance the first rubber wheel 36 and the second rubber wheel 27 is provided on 37 direction of travel of the second rubber wheel
25。
It is sliding friction between material and envelope flitch 22 in small barrel 21, conveying resistance is increased, then to envelope flitch
22 also have higher requirement, so increasing this feature of bottom cover 35, the discharge hole 24 of envelope flitch 22 makes when discharging
First rubber wheel 36 loses support, and bottom cover 35 is opened downwards, and discharging is carried out, and small barrel 31 continues passively to advance, the second rubber wheel
37 pass through the guiding role of bottom cover skewed slot 25 tilted upward, and bottom cover 35 are slowly closed, then the first rubber wheel 36 and bottom cover
Skewed slot 25 contacts, since rubber wheel has certain elasticity, so the first rubber wheel 36 passes through closure of the envelope flitch 22 to bottom cover 35
Effect has certain pressure, so that the closure of bottom cover 35 is tighter.
This mode eliminates material to the direct friction of envelope flitch 22, envelope flitch 22 can be designed as guide rail form,
Save driving force when rotation.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (9)
1. a kind of bulk materials conveyer, characterized in that including driving mechanism, rack tube, feeding unit, feeding unit includes small
Barrel, driving mechanism connect small barrel, and small barrel is mounted in rack tube, and driving mechanism drives small barrel to move in rack tube
Dynamic, rack tube top is equipped with the pressure ventilation pipe for cooperating small barrel, and wind direction is equipped with the mixing tube for cooperating small barrel discharging under pressure ventilation pipe, small
Barrel connection pressure ventilation pipe and mixing tube, mixing tube are mounted on rack tube lower part；
Rack tube is equipped with the hopper for cooperating small hopper, and hopper top is equipped with the belt of conveying bulk materials.
2. a kind of bulk materials conveyer according to claim 1, characterized in that the feeding unit further includes small powder
Tub, driving mechanism include motor, and motor connects speed reducer, and the output shaft of speed reducer is drive shaft, drive axis connection small powder cylinder
Frame, multiple small barrels are mounted in small powder tub, and multiple small barrels are uniformly distributed around drive shaft.
3. a kind of bulk materials conveyer according to claim 2, characterized in that rack tube includes rack tube ontology, branch
Frame cylinder body bottom portion is equipped with the envelope flitch that cooperation blocks small barrel bottom, and drive shaft passes through rack tube body bottom portion and connects small barrel
Bracket is crossed and is provided with discharge hole in the envelope flitch of pressure ventilation pipe and mixing tube communicating position.
4. a kind of bulk materials conveyer according to claim 3, characterized in that the mixing tube side is connected to high pressure
Gas source.
5. a kind of bulk materials conveyer according to claim 4, characterized in that rack tube includes rack tube ontology, pressure
Air hose and hopper are installed on rack tube ontology.
6. a kind of bulk materials conveyer according to claim 2, characterized in that the small barrel is cylindrical drum, phase
Adjacent small barrel external cylindrical surface is tangent.
7. a kind of bulk materials conveyer according to claim 2, characterized in that the small barrel cross sectional shape is fan
Shape is separated by barrel partition between adjacent small barrel.
8. a kind of bulk materials conveyer according to claim 3, characterized in that the small barrel bottom is equipped with bottom
Lid, bottom cover are connected to small barrel bottom by bottom cover shaft, and bottom cover is located between small barrel and envelope flitch, and bottom cover lower part is equipped with
The first rubber wheel walked in envelope flitch.
9. a kind of bulk materials conveyer according to claim 8, characterized in that the bottom cover lower part is equipped with the second rubber
Rubber tire, the second rubber wheel are located at the front of the first rubber wheel walking, and the distance of the second rubber wheel distance of shaft centers bottom cover is less than the first rubber
The distance of rubber tire distance of shaft centers bottom cover, discharge hole be provided on the second rubber wheel direction of travel tilt upward guidance the first rubber wheel and
The bottom cover skewed slot of second rubber wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910601861.8A CN110171716B (en) | 2019-07-04 | 2019-07-04 | Bulk material conveyer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910601861.8A CN110171716B (en) | 2019-07-04 | 2019-07-04 | Bulk material conveyer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110171716A true CN110171716A (en) | 2019-08-27 |
| CN110171716B CN110171716B (en) | 2023-11-24 |
Family
ID=67699797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910601861.8A Active CN110171716B (en) | 2019-07-04 | 2019-07-04 | Bulk material conveyer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110171716B (en) |
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