CN107362972A - A kind of closed construction sand sieving machine - Google Patents
A kind of closed construction sand sieving machine Download PDFInfo
- Publication number
- CN107362972A CN107362972A CN201710665831.4A CN201710665831A CN107362972A CN 107362972 A CN107362972 A CN 107362972A CN 201710665831 A CN201710665831 A CN 201710665831A CN 107362972 A CN107362972 A CN 107362972A
- Authority
- CN
- China
- Prior art keywords
- sieving machine
- sand sieving
- machine body
- feeding tube
- sand
- 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.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/18—Drum screens
- B07B1/22—Revolving drums
- B07B1/24—Revolving drums with fixed or moving interior agitators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a kind of closed construction sand sieving machine, including sand sieving machine body, the inner right side of the sand sieving machine body is provided with screened hour, the inner side of screened hour is provided with feeding tube, the inner side of feeding tube is provided with rotating shaft, the lower end of rotating shaft is provided with paddle, the inner side of feeding tube is in being provided with auger in rotating shaft, the motor being connected with rotating shaft is additionally provided with the top of sand sieving machine body, the top of feeding tube is provided with drop guide, the downside of drop guide is provided with sieve plate, and the bottom of sieve plate is provided with for the vibrating motor to screen cloth panel vibration.The present invention is compact-sized, is full-closed structure, will not cause health effect during sieve is husky to workmen, and sieves husky efficiency high, and sieve is husky thoroughly.
Description
Technical field
The present invention relates to a kind of construction equipment, specifically a kind of closed construction sand sieving machine.
Background technology
Sand sieving machine also known as nonirrigated farmland sieve large junk, sand-stone separator, apply to the sandstone separation equipment of river course, reservoir, coal yard.
It is made up of hull, shelf, reductor, conveyer belt, turn sieve, engine or a motor.This type is simple in construction, economic and practical, easily behaviour
Make.It is divided into drum type sand screening machine, washing drum type sand screening machine, vibration sieve type sand sieving machine etc..Sand sieving machine is to copy artificial utilize tiltedly
The operation principle of face screen cloth sieve sand, using horizontal roll screen barrel, and ensures to connect between multi-turn internal helical blades of the stream in screen drum
More than the continuous circle of roller screen five, so that sand material rolls, slided and fully discrete, separation repeatedly；Different from big caused by tilting roller screen
Small powder is mutually pushed, pile things on, and screening process is hasty；Also different from big small powder tramp, the batch mixing of tilting vibratory sieve.
Existing sand sieving machine structure is relatively conventional single, and floor space is big, and it is low to sieve husky efficiency, not enough thoroughly, and building ring
Border dust from flying, it is unfavorable for the health of workmen.
The content of the invention
It is an object of the invention to provide a kind of closed construction sand sieving machine, to solve to carry in above-mentioned background technology
The problem of going out.
To achieve the above object, the present invention provides following technical scheme：
A kind of closed construction sand sieving machine, including sand sieving machine body, the lower inside of the sand sieving machine body is storing
Chamber, the left bottom of sand sieving machine body are provided with sand discharge pipe, and the left lower of the sand sieving machine body is provided with temperature control air-heater, temperature control hot blast
Air jet pipe is connected with the air outlet of machine, air jet pipe extends to the inside of sand sieving machine body, some jet thrusts is provided with air jet pipe,
The inner right side of the sand sieving machine body is provided with screened hour, and screened hour is spherical structure, and the bottom of screened hour is provided with multiple support bars,
The inner bottom part of sand sieving machine body is fixed in the lower end of support bar, and the inner side of the screened hour is provided with feeding tube, and the lower end of feeding tube is prolonged
The lower inside of screened hour is extended, the upper end of feeding tube is stretched out from the top of screened hour, and the top of feeding tube and screened hour is
It is sealedly and fixedly connected, the inner side of the feeding tube is provided with rotating shaft, and the lower end of rotating shaft is provided with what is be engaged with screened hour inner bottom part
Paddle, the inner side of the feeding tube are stretched out from the top of sand sieving machine body in being provided with auger, the upper end of the rotating shaft in rotating shaft,
And rotating shaft and the top of sand sieving machine body are rotatablely connected for sealing, the driving electricity being connected with rotating shaft is additionally provided with the top of sand sieving machine body
Machine, the inner space of the feeding tube is feeding chamber, and the top of feeding tube is provided with drop guide, and the top right side of the screened hour is also
Provided with feed pipe, the other end of feed pipe stretches out from the right side wall of sand sieving machine body, and the right side wall of feed pipe and sand sieving machine body is
It is sealedly and fixedly connected, the downside of the drop guide is provided with sieve plate, and the bottom of sieve plate is provided with for screen cloth panel vibration
Vibrating motor, the left end of the sieve plate are fixed in the inner left wall of sand sieving machine body, and the right-hand member of sieve plate is fixed on feeding tube
On, the upside of the sieve plate is provided with scum pipe in the left side wall of sand sieving machine body, and backgauge is additionally provided with the downside of the sieve plate
Plate, striker plate are that left end tilts down setting, and the left end of striker plate is located at the left side of screened hour left side, and the right-hand member of striker plate is consolidated
Due on feeding tube.
As the further scheme of the present invention：The sand sieving machine body is full-closed structure, and the bottom of sand sieving machine body is left end
Tilt down setting.
As the further scheme of the present invention：The air jet pipe is horizontally disposed with.
As the further scheme of the present invention：The drop guide includes bottom plate, offers what is connected with feeding chamber on bottom plate
Intercommunicating pore, and the diameter of intercommunicating pore is identical with the diameter of feeding chamber, the edge of the bottom plate is provided with side guard plate, the left end of side guard plate
Provided with discharging opening.
As the further scheme of the present invention：The sieve plate is that downward 15 ° of left end is obliquely installed.
As the further scheme of the present invention：PLC, PLC controls are also equipped with the side wall of the sand sieving machine body
Touch screen is installed on device, the input of touch screen and PLC is electrically connected with, the output end of PLC respectively with temperature
Air-heater, vibrating motor and motor is controlled to be electrically connected with.
As the further scheme of the present invention：Valve is mounted on the sand discharge pipe, scum pipe and feed pipe.
Compared with prior art, the beneficial effects of the invention are as follows：The closed construction sand sieving machine, sand material is by entering
Expects pipe is added in screened hour, and by controlling motor to work, motor drives axis of rotation, and the installation of rotating shaft lower end is stirred
Sieve sand can be stirred to sand material by mixing leaf, and the slag charge of screened hour congregate can be lifted by auger, in leading for drop guide
Under material effect, being mingled with the slag charge of the grains of sand can be dropped on sieve plate, and screen cloth panel vibration is driven by vibrating motor, can be further
The grains of sand in slag charge are filtered out, sand material can be dehumidified by the work of temperature control air-heater, husky effect and efficiency are sieved in lifting, pass through gear
Flitch can prevent the sand material under sieve plate filter from being impacted to screened hour；The apparatus structure is compact, is full-closed structure, sieves husky mistake
Health effect will not be caused in journey to workmen, and sieves husky efficiency high, is sieved husky thorough.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of screened hour and feeding tube portion in the present invention.
Fig. 3 is the overlooking the structure diagram of drop guide part in the present invention.
Fig. 4 is the circuit theory diagrams of the present invention.
In figure：1- jet thrusts, 2- air jet pipes, 3- sand discharge pipes, 4- temperature control air-heaters, 5-PLC controllers, 6- touch screens, 7-
Vibrating motor, 8- scum pipes, 9- sieve plates, 10- sand sieving machine bodies, 11- striker plates, 12- drop guides, 13- motors, 14- turn
Axle, 15- feeding tubes, 16- feed pipes, 17- screened hours, 18- support bars, 19- storage cavitys, 20- feeding chambers, 21- augers, 22- are stirred
Mix leaf, 23- intercommunicating pores, 24- discharging openings, 25- side guard plates, 26- bottom plates.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Refer to Fig. 1~4, in the embodiment of the present invention, a kind of closed construction sand sieving machine, including sand sieving machine body
10, the sand sieving machine body 10 is full-closed structure, and the bottom of sand sieving machine body 10 tilts down setting for left end, sand sieving machine body 10
Lower inside is storage cavity 19, and the left bottom of sand sieving machine body 10 is provided with sand discharge pipe 3, is used by the lower inside of sand sieving machine body 10
In storage sand material, it is used to discharge sand material by sand discharge pipe 3, the left lower of the sand sieving machine body 10 is provided with temperature control air-heater 4, temperature
Control and be connected with air jet pipe 2 on the air outlet of air-heater 4, air jet pipe 2 extends to the inside of sand sieving machine body 10, and the level of air jet pipe 2 is set
Put, some jet thrusts 1 are installed on air jet pipe 2, worked by temperature control air-heater 4, hot-air can be sprayed by jet thrust 1, risen
To the effect to be dehumidified to sand material, husky effect is sieved in lifting.
The inner right side of the sand sieving machine body 10 is provided with screened hour 17, and screened hour 17 is spherical structure, the bottom of screened hour 17
Portion is provided with multiple support bars 18, and the inner bottom part of sand sieving machine body 10 is fixed in the lower end of support bar 18, can be to sieve by support bar 18
Net cage 17 is supported fixation, and the inner side of the screened hour 17 is provided with feeding tube 15, and the lower end of feeding tube 15 extends to screened hour
17 lower inside, the upper end of feeding tube 15 is stretched out from the top of screened hour 17, and the top of feeding tube 15 and screened hour 17 is
It is sealedly and fixedly connected, the inner side of the feeding tube 15 is provided with rotating shaft 14, and the lower end of rotating shaft 14 is provided with and the inner bottom part of screened hour 17
The paddle 22 being engaged, sand material can be stirred by paddle 22, the inner side of the feeding tube 15 is provided with rotating shaft 14
Auger 21, being rotated and sand material can be lifted by auger 21, the upper end of the rotating shaft 14 is stretched out from the top of sand sieving machine body 10,
And rotating shaft 14 and the top of sand sieving machine body 10 are rotatablely connected for sealing, the top of sand sieving machine body 10 is additionally provided with what is be connected with rotating shaft 14
Motor 13, by motor 13 rotating shaft 14 can be driven to rotate, the inner space of the feeding tube 15 is feeding chamber 20, on
The top of expects pipe 15 is provided with drop guide 12, and the drop guide 12 includes bottom plate 26, offers on bottom plate 26 and connected with feeding chamber 20
Intercommunicating pore 23, and the diameter of intercommunicating pore 23 is identical with the diameter of feeding chamber 20, and the edge of the bottom plate 26 is provided with side guard plate 25,
The left end of side guard plate 25 is provided with discharging opening 24, material can be avoided to flow out by side guard plate 25, and discharging opening 24 can discharge material, described
The top right side of screened hour 17 is additionally provided with feed pipe 16, and the other end of feed pipe 16 stretches out from the right side wall of sand sieving machine body 10, and
The right side wall of feed pipe 16 and sand sieving machine body 10 is to be sealedly and fixedly connected, and sand material can be added to screened hour 17 by feed pipe 16
It is interior.
The downside of the drop guide 12 is provided with sieve plate 9, and sieve plate 9 is that downward 15 ° of left end is obliquely installed, sieve plate 9
Bottom is provided with the vibrating motor 7 for being vibrated to sieve plate 9, and the left end of the sieve plate 9 is fixed on a left side for sand sieving machine body 10
On the inwall of side, the right-hand member of sieve plate 9 is fixed on feeding tube 15, and the material that drop guide 12 is fallen can be fully contemplated to sieve plate 9
On, the upside of the sieve plate 9 is provided with scum pipe 8 in the left side wall of sand sieving machine body 10, and the row of slag charge is beneficial to by scum pipe 8
Go out, in order to which the sand material under preventing sieve plate 9 from filtering is fallen on screened hour 17, the downside of the sieve plate 9 is additionally provided with striker plate 11, gear
Flitch 11 is that left end tilts down setting, and the left end of striker plate 11 is located at the left side of the left side of screened hour 17, the right side of striker plate 11
End is fixed on feeding tube 15.
PLC 5 is also equipped with the side wall of the sand sieving machine body 10, touch screen 6 is installed in PLC 5, is touched
Control screen 6 and the input of PLC 5 is electrically connected with, the output end of PLC 5 is electric with temperature control air-heater 4, vibration respectively
Machine 7 and motor 13 are electrically connected with.
In the present embodiment, valve is mounted on the sand discharge pipe 3, scum pipe 8 and feed pipe 16.
The closed construction sand sieving machine, sand material are added in screened hour 17 by feed pipe 16, are driven by controlling
Dynamic motor 13 is worked, and motor 13 drives rotating shaft 14 to rotate, and the paddle 22 of the lower end of rotating shaft 14 installation can be stirred sand material
It is husky to mix sieve, the slag charge of the congregate of screened hour 17 can be lifted by auger 21, under the guide effect of drop guide 12, be mingled with
The slag charge of the grains of sand can drop on sieve plate 9, drive sieve plate 9 to vibrate by vibrating motor 7, further can filter out in slag charge
The grains of sand, sand material can be dehumidified by the work of temperature control air-heater 4, husky effect and efficiency are sieved in lifting, can by striker plate 11
Prevent the sand material under the filter of sieve plate 9 from being impacted to screened hour 17；The apparatus structure is compact, is full-closed structure, sieves husky process
In will not cause health effect to workmen, and sieve husky efficiency high, sieve it is husky thoroughly.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
The above is only the preferred embodiment of the present invention, it is noted that for those skilled in the art, not
On the premise of departing from present inventive concept, several modifications and improvements can also be made, these should also be considered as the protection model of the present invention
Enclose, these effects and practical applicability for implementing all without the influence present invention.
Claims (7)
1. a kind of closed construction sand sieving machine, including sand sieving machine body (10), it is characterised in that the sand sieving machine body (10)
Lower inside be storage cavity (19), the left bottom of sand sieving machine body (10) is provided with sand discharge pipe (3), the sand sieving machine body (10)
Left lower is provided with temperature control air-heater (4), is connected with air jet pipe (2) on the air outlet of temperature control air-heater (4), air jet pipe (2) prolongs
The inside of sand sieving machine body (10) is extended, some jet thrusts (1), the inside of the sand sieving machine body (10) are installed on air jet pipe (2)
Right side is provided with screened hour (17), and screened hour (17) is spherical structure, and the bottom of screened hour (17) is provided with multiple support bars (18), branch
The inner bottom part of sand sieving machine body (10) is fixed in the lower end of strut (18), and the inner side of the screened hour (17) is provided with feeding tube (15),
The lower end of feeding tube (15) extends to the lower inside of screened hour (17), and the upper end of feeding tube (15) is from the top of screened hour (17)
Stretch out, and the top of feeding tube (15) and screened hour (17) is to be sealedly and fixedly connected, the inner side of the feeding tube (15), which is provided with, to be turned
Axle (14), the lower end of rotating shaft (14) are provided with the paddle (22) being engaged with screened hour (17) inner bottom part, the feeding tube
(15) stretched at the top of sand sieving machine body (10) in being provided with auger (21), the upper end of the rotating shaft (14) in rotating shaft (14) inner side
Go out, and rotating shaft (14) and the top of sand sieving machine body (10) are rotatablely connected for sealing, are additionally provided with the top of sand sieving machine body (10) with turning
The motor (13) of axle (14) connection, the inner space of the feeding tube (15) are feeding chamber (20), the top of feeding tube (15)
Portion is provided with drop guide (12), and the top right side of the screened hour (17) is additionally provided with feed pipe (16), the other end of feed pipe (16)
Stretched out from the right side wall of sand sieving machine body (10), and the right side wall of feed pipe (16) and sand sieving machine body (10) is to be sealedly and fixedly connected,
The downside of the drop guide (12) is provided with sieve plate (9), and the bottom of sieve plate (9) is provided with for sieve plate (9) vibration
Vibrating motor (7), the left end of the sieve plate (9) are fixed in the inner left wall of sand sieving machine body (10), the right-hand member of sieve plate (9)
It to be fixed on feeding tube (15), the upside of the sieve plate (9) is provided with scum pipe (8) in the left side wall of sand sieving machine body (10),
Striker plate (11) is additionally provided with the downside of the sieve plate (9), striker plate (11) is that left end tilts down setting, striker plate (11)
Left end is located at the left side of screened hour (17) left side, and the right-hand member of striker plate (11) is fixed on feeding tube (15).
2. closed construction sand sieving machine according to claim 1, it is characterised in that the sand sieving machine body (10) is
Full-closed structure, the bottom of sand sieving machine body (10) tilt down setting for left end.
3. closed construction sand sieving machine according to claim 1, it is characterised in that the air jet pipe (2) is horizontal
Set.
4. closed construction sand sieving machine according to claim 1, it is characterised in that the drop guide (12) includes
Bottom plate (26), offers the intercommunicating pore (23) connected with feeding chamber (20) on bottom plate (26), and the diameter of intercommunicating pore (23) with it is upper
Expect that the diameter of chamber (20) is identical, the edge of the bottom plate (26) is provided with side guard plate (25), and the left end of side guard plate (25) is provided with discharging
Mouth (24).
5. closed construction sand sieving machine according to claim 1, it is characterised in that the sieve plate (9) is a left side
Downward 15 ° are held to be obliquely installed.
6. closed construction sand sieving machine according to claim 1, it is characterised in that the sand sieving machine body (10)
PLC (5) is also equipped with side wall, touch screen (6), touch screen (6) and PLC are installed in PLC (5)
(5) input is electrically connected with, the output end of PLC (5) respectively with temperature control air-heater (4), vibrating motor (7) and driving
Motor (13) is electrically connected with.
7. closed construction sand sieving machine according to claim 1, it is characterised in that the sand discharge pipe (3), deslagging
Valve is mounted on pipe (8) and feed pipe (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710665831.4A CN107362972A (en) | 2017-08-07 | 2017-08-07 | A kind of closed construction sand sieving machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710665831.4A CN107362972A (en) | 2017-08-07 | 2017-08-07 | A kind of closed construction sand sieving machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107362972A true CN107362972A (en) | 2017-11-21 |
Family
ID=60309821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710665831.4A Withdrawn CN107362972A (en) | 2017-08-07 | 2017-08-07 | A kind of closed construction sand sieving machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107362972A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108246611A (en) * | 2018-01-17 | 2018-07-06 | 马良彬 | A kind of reciprocal sand sieving machine of construction vehicle type |
| CN108273724A (en) * | 2018-01-17 | 2018-07-13 | 郑东亮 | A kind of building Sand screen with automatic charging function |
| CN108554766A (en) * | 2018-04-03 | 2018-09-21 | 金安琪 | A kind of civil engineering small-sized efficient sand sieving machine |
-
2017
- 2017-08-07 CN CN201710665831.4A patent/CN107362972A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108246611A (en) * | 2018-01-17 | 2018-07-06 | 马良彬 | A kind of reciprocal sand sieving machine of construction vehicle type |
| CN108273724A (en) * | 2018-01-17 | 2018-07-13 | 郑东亮 | A kind of building Sand screen with automatic charging function |
| CN108554766A (en) * | 2018-04-03 | 2018-09-21 | 金安琪 | A kind of civil engineering small-sized efficient sand sieving machine |
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| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171121 |