CN102211358A - Preparation method of graded sand, and construction for implementing same - Google Patents
Preparation method of graded sand, and construction for implementing same Download PDFInfo
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- CN102211358A CN102211358A CN2010106240477A CN201010624047A CN102211358A CN 102211358 A CN102211358 A CN 102211358A CN 2010106240477 A CN2010106240477 A CN 2010106240477A CN 201010624047 A CN201010624047 A CN 201010624047A CN 102211358 A CN102211358 A CN 102211358A
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- screen cloth
- feeding device
- cloth bucket
- sand material
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Abstract
The invention discloses a preparation method of graded sand, and a construction for implementing the same. The method comprises the following steps of: preparing a sifting screen funnel, wherein a sifting grid in the sifting screen funnel only allows sand particles satisfying a gradation particle size to pass therethrough, and a vibrator is arranged on the sifting screen funnel; preparing a delivery device; preparing a kit of multifunctional support provided with a runner, and mounting the delivery device on the multifunctional support; preparing a control circuit latching device, and fixing the sifting screen funnel to the delivery device through an elastic connecting element; connecting the control circuit latching device to a motor vibrator and a motor in the delivery device; switching on the power, feeding sand to the sifting screen funnel, and driving, by the motor vibrator, the sifting screen funnel to vibrate, so that the graded sand drops down in the sifting screen funnel and enters the feeding hole of the delivery device via a discharge hole; and then delivering the graded sand to the discharge hole at the other end of the delivery device under the driving of a screw, and then discharging the graded sand therefrom for construction demands and storage. The preparation method can be implemented and applied in a sand plant or a construction plant of a narrow space.
Description
Technical field
The present invention relates to construction engineering technical field, be specifically related to a kind of structure of preparation method with this method of enforcement of graded sand material.
Background technology
In the prior art, being used to allocate building sand material and concrete sand material all needs to have ever made screen grading and joins.At present, the grating of sieving to the sand material, though the facility that sieves of special use is efficiently arranged, but be based on the usefulness that to have given play to this class facility, necessary supporting shovel machine or belt feeding device use so only be useful in comparatively large-scale sand field, and the space in sand stock ground, most of construction site is comparatively narrow can't use this class facility, and purchase the amount of money that supporting shovel machine and belt feeding device need be paid writing in addition, increase the financial burden of enterprise.Instantly, the construction site mostly be continue to use original method with manual type with the sand material grating of sieving.Do not only the labour intensity height like this, work efficiency is low, and the quality of sieving of sand material also is difficult to be guaranteed.The problem that is short of hands along with the labourer is on the rise, and construction project improves the sieve facility and the method for grating work efficiency and quality of sand material urgent requirement is arranged being applicable to narrow space sand field.
Summary of the invention
The objective of the invention is to, a kind of preparation method of graded sand material is provided, promptly can practice narrow and small sand stock ground or construction site by this method in the space, low-cost, prepare the graded sand material fast, effectively raise the supply and the grating quality of graded sand material, and reduced enterprise greatly the input production cost of the preparation of graded sand material.
The present invention also aims to provide a kind of structure of implementing the preparation method of above-mentioned graded sand material.
The technical scheme that the present invention is adopted for achieving the above object is:
A kind of preparation method of graded sand material, it may further comprise the steps:
(1) prepared the screen cloth bucket, this grid of crossing in the screen cloth bucket that sieves can only allow the sand grains that meets the grating particle diameter pass through, meeting the grid that sieves drops out from the discharging opening of crossing screen cloth bucket bottom by the grating sand grains that requires, sand material greater than the grating particle diameter is got rid of from the slag charge mouth of crossing on screen cloth bucket one side, cross at this vibrator is set on the screen cloth bucket, this vibrator drove the vibration of screen cloth bucket, and the sand material that order was rendered in the screen cloth bucket is in active state, is convenient to the grating sand grains and drops;
(2) preparation one feeding device, this feeding device is a tubular type spiral dehvery pump, it comprises a tubular body, a screw rod and a motor, this screw rod is placed through in the tubular body, the end that motor is located at this tubular body orders about described screw rod and rotates, and an end that is provided with motor at tubular body is provided with discharging opening, is provided with charging aperture and lands bearing at the other end of tubular body, the discharging opening of this tubular body is towards the below, and the charging aperture of this tubular body is towards the top;
(3) preparation one cover is furnished with the multiple bay of runner, and it comprises a pair of BOGEY WHEEL, a pair of balancing pole, bracing frame and a pair of antidumping auxiliary wheel;
(4) described feeding device is installed on this multiple bay, the bracing frame of this multiple bay is to be fastened on feeding device near middle position, after this feeding device is fastened on multiple bay, when being configured in of this preparation graded sand material operates, the bearing that lands of this feeding device is that pressure-bearing is on terrace, this feeding device discharging opening is towards the below, when the structure that will prepare the graded sand material is mobile, the bearing that lands that this feeding device is furnished with is lifted from terrace, this moment with the center of gravity of feeding device can in response to and reduce so that move;
(5) the described screen cloth bucket of crossing is connected with elastic component on the charging aperture of feeding device, this discharging opening of crossing the screen cloth bucket docks with the charging aperture of feeding device; Side under the grid that sieves of slag charge mouth and mistake screen cloth bucket is oblique connects, and is convenient to the discharge of sand material under the vibrator effect greater than the grating particle diameter;
(6) system is allotted a cover control circuit stop device;
(7), be connected to by cable on the motor of the vibrator of screen cloth bucket and feeding device with described control circuit stop device;
(8) structure that will prepare the graded sand material is displaced to the sand stock ground, the bearing that lands of feeding device one end is landed, regulate a pair of balancing pole in the multiple bay, the liftoff level ground of a pair of BOGEY WHEEL pad with multiple bay, the motor of Vibration on Start-up device and feeding device after connecting with the mains, the sand material was rendered in the screen cloth bucket, this moment, the sand material was under the vibrator effect, the sand material that meets the grating requirement passed the grid that sieves of screen cloth bucket, drop in the charging aperture of feeding device along crossing screen cloth bucket discharging opening, screw rod by feeding device rotates, discharge from the discharging opening of feeding device, fail to meet sand material that grating requires and then fall into eliminating along crossing the sieve slag charge mouth of oblique next side of grid of screen cloth bucket.
As a further improvement on the present invention, this vibrator is arranged at this and crosses a side of screen cloth bucket or be located at the top that this crosses the screen cloth bucket.
A kind of structure of implementing the preparation method of aforementioned graded sand material, it comprise one can only be by the graded sand material cross the screen cloth bucket, one feeding device, one cover multiple bay, one cover control circuit stop device, the described screen cloth bucket of crossing is provided with a vibrator, described feeding device is a tubular type spiral dehvery pump, this feeding device tilts to be located on this multiple bay, the discharging opening of this feeding device high end position towards below, this is crossed the screen cloth bucket and can be arranged on quiveringly on the feeding device obliquely by elastic component, this discharging opening of crossing the screen cloth bucket docks with the charging aperture of feeding device, this is crossed the slag charge mouth of screen cloth bucket and this and crosses the oblique below of screen cloth bucket one side and connect, and is tilted to down the sand grains of being convenient to not meet the grating particle diameter and discharges.
As a further improvement on the present invention, the described screen cloth bucket of crossing comprises funnel, the grid that sieves, discharging opening and the slag charge velar plate that tilts to narrow.The plane, top of this funnel is the inlet of sand material, this sand material porch is provided with the grid that sieves, this sand material plane of inlet is consistent with the incline direction of feeding device with this grid that sieves, this slag charge velar plate is just being put and had been in the sieve top of oblique next side of grid of screen cloth bucket, and it is parallel with the grid that sieves, and, form the slag charge mouth less than 3 centimetres at a distance of greater than 1 centimetre.The bottom of this funnel is provided with discharging opening, and this vibrator of crossing the vibration of screen cloth bucket of described driving is fixed on this and crosses on the screen cloth bucket.
As a further improvement on the present invention, described feeding device is a tubular type spiral dehvery pump, it comprises a tubular body, a screw rod and a motor, this screw rod is placed through in the tubular body, the end that this motor is located at this tubular body drives described screw rod rotation, a bottom portion that is provided with motor at this tubular body is provided with a discharging opening, is provided with a charging aperture at the other end top of this tubular body.
This control circuit stop device disposes switch, circuit overloads power-off protector and the earth protective device of described vibrator of control and the stop of feeding device motor; in this control circuit stop device, dispose inclination induction switching-off device; when the inclination of the structure of this preparation graded sand material might make the structure of this preparation graded sand material unbalance; the inclination induction switching-off device of this control circuit stop device can help dump, and sends the signal caution.
Auxiliary wheel is toppled in this multiple bay an antagonism can prevent that toppling from appearring in the structure of this preparation graded sand material when moving the structure of this preparation graded sand material.
Be connected with pipeline knuckle and the one section pipeline under oblique at the discharging opening of this feeding device, the scope that can fall from the sand material cloth that this discharging opening is discharged is widened, and moves the number of times that the structure of this preparation graded sand material moves when reducing the graded sand material.
Beneficial effect of the present invention is: the preparation method and the structure that the invention provides a kind of graded sand material, promptly can practice narrow and small sand stock ground or construction site by this method and structure in the space, low-cost, prepare the graded sand material fast, effectively raise the supply of graded sand material, reduced enterprise greatly the input production cost of the preparation of graded sand material.
Below in conjunction with accompanying drawing and embodiment, the present invention is further described.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Embodiment: see Fig. 1, the present invention plants the preparation method of graded sand material, and it may further comprise the steps:
(1) prepared screen cloth bucket 1, this grid of crossing in the screen cloth bucket 1 11 that sieves can only allow the sand grains that meets the grating particle diameter pass through, meeting the grid 11 that sieves drops out from the discharging opening of crossing screen cloth bucket 1 bottom by the grating sand grains that requires, sand material greater than the grating particle diameter is got rid of from the slag charge mouth of crossing on screen cloth bucket 1 one sides 13, cross at this vibrator 14 is set on the screen cloth bucket 1, this vibrator 14 drove 1 vibration of screen cloth bucket, and the sand material that order was rendered in the screen cloth bucket 1 is in active state, is convenient to the grating sand grains and drops;
(2) preparation one feeding device 2, this feeding device 2 is a tubular type spiral dehvery pump, it comprises a tubular body 21, a screw rod and a motor 22, this screw rod is placed through in the tubular body 21, the end that motor 22 is located at this tubular body 21 orders about described screw rod and rotates, and an end that is provided with motor 22 at tubular body 21 is provided with discharging opening 23, is provided with charging aperture 24 and lands bearing 25 at the other end of tubular body 21, the discharging opening 23 of this tubular body 21 is towards the below, and the charging aperture 24 of this tubular body 21 is towards the top;
(3) preparation one cover is furnished with the multiple bay of runner, and it comprises a pair of BOGEY WHEEL 321, a pair of balancing pole 322, bracing frame 32 and a pair of antidumping auxiliary wheel 323;
(4) described feeding device 2 is installed on this multiple bay, the bracing frame 32 of this multiple bay is to be fastened on feeding device 2 near middle position, after this feeding device 2 is fastened on multiple bay, when being configured in of this preparation graded sand material operates, the bearing 25 that lands of this feeding device 2 is that pressure-bearing is on terrace, this feeding device 2 is furnished with motor 22 and relies on the bracing frame 32 of multiple bay to lift high with discharging opening 23 1 ends, these feeding device 2 discharging openings 23 are towards the below, when the structure that will prepare the graded sand material is mobile, the bearing 25 that lands that this feeding device 2 is furnished with is lifted from terrace, this moment with the center of gravity of feeding device 2 can in response to and reduce so that move;
(5) the described screen cloth bucket 1 of crossing is connected with elastic component 12 on the charging aperture 24 of feeding device 2, this discharging opening of crossing screen cloth bucket 1 docks with the charging aperture 24 of feeding device 2; Slag charge mouth 13 connects with the grid 11 oblique sides down of sieving of crossing screen cloth bucket 1, and is convenient to the discharge of sand material under vibrator 14 acts on greater than the grating particle diameter;
(6) system is allotted a cover control circuit stop device 4;
(7) with described control circuit stop device 4, on the vibrator 14 that was connected to screen cloth bucket 1 by cable and the motor 22 of feeding device 2;
(8) structure that will prepare the graded sand material is displaced to the sand stock ground, the bearing 25 that lands of feeding device 2 one ends is landed, regulate a pair of balancing pole 322 in the bracing frame 32, the liftoff level ground of a pair of BOGEY WHEEL 321 pads with bracing frame 32, the motor 22 of Vibration on Start-up device 14 and feeding device 2 after connecting with the mains, the sand material was rendered in the screen cloth bucket 1, this moment, the sand material was under vibrator 14 effects, the sand material that meets the grating requirement passed the grid 11 that sieves of screen cloth bucket 1, drop in the charging aperture 24 of feeding device 2 along crossing screen cloth bucket 1 discharging opening, screw rod by feeding device 2 rotates, discharge from the discharging opening 23 of feeding device 2, fail to meet sand material that grating requires and then fall into eliminating along crossing the slag charge mouth 13 that screen cloth bucket 1 sieves grid 11 oblique next side.
This vibrator 14 is arranged at this and crosses a side of screen cloth bucket 1 or be located at the top that this crosses screen cloth bucket 1.
A kind of structure of implementing the preparation method of aforementioned graded sand material, it comprise one can only be by the graded sand material cross screen cloth bucket 1, one feeding device 2, one cover multiple bay, one cover control circuit stop device 4, the described screen cloth bucket 1 of crossing is provided with a vibrator 14, described feeding device 2 is a tubular type spiral dehvery pump, this feeding device 2 tilts to be located on this multiple bay, the discharging opening 23 of this feeding device 2 high end position towards below, this is crossed screen cloth bucket 1 and can be arranged on the feeding device 2 quiveringly obliquely by elastic component 12, this discharging opening of crossing screen cloth bucket 1 docks with the charging aperture 24 of feeding device 2, this slag charge mouth 13 of crossing screen cloth bucket 1 is crossed screen cloth bucket 1 oblique below one side with this and is connected, and is tilted to down the sand grains discharge of being convenient to not meet the grating particle diameter.
The described screen cloth bucket 1 of crossing comprises funnel 15, the grid 11 that sieves, discharging opening and slag charge mouth 13 cover plates that tilt to narrow.The plane, top of this funnel 15 is the inlet of sand material, this sand material porch is provided with the grid 11 that sieves, this sand material plane of inlet is consistent with the incline direction of feeding device 2 with this grid 11 that sieves, these slag charge mouth 13 cover plates are just being put and had been in the sieve top of grid 11 oblique next side of screen cloth bucket 1, and it is parallel with the grid 11 that sieves, and, form slag charge mouth 13 less than 3 centimetres at a distance of greater than 1 centimetre.The bottom of this funnel 15 is provided with discharging opening, and this vibrator 14 of crossing 1 vibration of screen cloth bucket of described driving is fixed on this and crosses on the screen cloth bucket 1.
Described feeding device 2 is a tubular type spiral dehvery pump, it comprises a tubular body 21, a screw rod and a motor 22, this screw rod is placed through in the tubular body 21, the end that this motor 22 is located at this tubular body 21 drives described screw rod rotation, a bottom portion that is provided with motor 22 at this tubular body 21 is provided with a discharging opening 23, is provided with a charging aperture 24 at the other end top of this tubular body 21.
This control circuit stop device 4 disposes switch, circuit overloads power-off protector and the earth protective device of described vibrator 14 of control and 22 stop of feeding device 2 motors; in this control circuit stop device 4, dispose inclination induction switching-off device; when the inclination of the structure of this preparation graded sand material might make the structure of this preparation graded sand material unbalance; the inclination induction switching-off device of this control circuit stop device 4 can help dump, and sends the signal caution.
Be fastened on a pair of antidumping auxiliary wheel 323 on the bracing frame 32 and when the center of gravity of the structure that will prepare the graded sand material reduces, can play the purpose that toppling appears in the structure that prevents this preparation graded sand material.
Be connected with pipeline knuckle 5 and the one section pipeline under oblique at the discharging opening 23 of this feeding device 2, the scope that can fall from the sand material cloth that feeding device 2 discharging openings 23 are discharged is widened.
When using product of the present invention, connect power supply, motor 22 work of vibrator 14 on the described screen cloth bucket 1 excessively and feeding device 2, throw in sand and expect described the mistake on the screen cloth bucket 1, vibrator 14 drove 1 vibration of screen cloth bucket, thereby make the sand material sentence active state, meet the charging aperture 24 that the graded sand material of the grid 11 that sieves by the requirement of grating particle diameter dropped in the screen cloth bucket 1 and entered into feeding device 2 from discharging opening, the sand material that does not meet the grating particle diameter is discharged from slag charge mouth 13, entered the drive of graded sand material by screw rod in the feeding device 2, the discharging opening 23 that is transported to feeding device 2 other ends is discharged, and directly the supply construction needs or storage.Promptly can practice narrow and small sand stock ground or construction site by the inventive method and structure in the space, low-cost, prepare the graded sand material fast, effectively raise the supply of graded sand material, reduced enterprise greatly the input production cost of the preparation of graded sand material.
As described in the embodiment of the invention, with the preparation method of other graded sand material of the same or similar structure of the present invention and implement the structure of this method, all in protection domain of the present invention.
Claims (8)
1. the preparation method of a graded sand material, it is characterized in that: it may further comprise the steps:
(1) prepared the screen cloth bucket, this grid of crossing in the screen cloth bucket that sieves can only allow the sand grains that meets the grating particle diameter pass through, meeting the grid that sieves drops out from the discharging opening of crossing screen cloth bucket bottom by the grating sand grains that requires, greater than the sand material of grating particle diameter from crossing sieve the slag charge mouth eliminating on the oblique side down of grid of screen cloth bucket, cross at this vibrator is set on the screen cloth bucket, this vibrator drove the vibration of screen cloth bucket, and the sand material that order was rendered in the screen cloth bucket is in active state, is convenient to the grating sand grains and drops.
(2) preparation one feeding device, this feeding device is a tubular type spiral dehvery pump, it comprises a tubular body, a screw rod and a motor, this screw rod is placed through in the tubular body, the end that motor is located at this tubular body orders about described screw rod and rotates, and an end that is provided with motor at tubular body is provided with discharging opening, is provided with charging aperture and lands bearing at the other end of tubular body, the discharging opening of this tubular body is towards the below, and the charging aperture of this tubular body is towards the top.
(3) preparation one cover is furnished with the multiple bay of runner, and it comprises a pair of BOGEY WHEEL, a pair of balancing pole, a bracing frame and a pair of antidumping auxiliary wheel;
(4) described feeding device is installed on this multiple bay, the bracing frame of this multiple bay is to be fastened on feeding device near middle position, after this feeding device is fastened on multiple bay, when being configured in of this preparation graded sand material operates, the bearing that lands of this feeding device is that pressure-bearing is on terrace, this feeding device discharging opening is towards the below, when the structure that will prepare the graded sand material is mobile, the bearing that lands that this feeding device is furnished with is lifted from terrace, this moment with the center of gravity of feeding device can in response to and reduce so that move;
(5) the described screen cloth bucket of crossing is connected with elastic component on the charging aperture of feeding device, this discharging opening of crossing the screen cloth bucket docks with the charging aperture of feeding device; Side under the grid that sieves of slag charge mouth and mistake screen cloth bucket is oblique connects, and is convenient to the discharge of sand material under the vibrator effect greater than the grating particle diameter;
(6) system is allotted a cover control circuit stop device;
(7), be connected to by cable on the motor of the vibrator of screen cloth bucket and feeding device with described control circuit stop device;
(8) structure that will prepare the graded sand material is displaced to the sand stock ground, the bearing that lands of feeding device one end is landed, regulate a pair of balancing pole of multiple bay, with the liftoff level ground of a pair of BOGEY WHEEL pad on the multiple bay, the motor of Vibration on Start-up device and feeding device after connecting with the mains, the sand material was rendered in the screen cloth bucket, this moment, the sand material was under the vibrator effect, the sand material that meets the grating requirement passed the grid that sieves of screen cloth bucket, drop in the charging aperture of feeding device along crossing screen cloth bucket discharging opening, screw rod by feeding device rotates, discharge from the discharging opening of feeding device, fail to meet sand material that grating requires and then fall into eliminating along crossing the sieve slag charge mouth of oblique next side of grid of screen cloth bucket.
2. the preparation method of graded sand material according to claim 1 is characterized in that, this vibrator is arranged at this and crosses a side of screen cloth bucket or be located at the top that this crosses the screen cloth bucket.
3. structure of implementing the preparation method of the described graded sand material of claim 1, it is characterized in that: it comprise one can only be by the graded sand material cross the screen cloth bucket, one feeding device, one cover multiple bay, one cover control circuit stop device, the described screen cloth bucket of crossing is provided with a vibrator, described feeding device is a tubular type spiral dehvery pump, this feeding device tilts to be located on this multiple bay, the discharging opening of this feeding device high end position towards below, this is crossed the screen cloth bucket and can be arranged on quiveringly on the feeding device obliquely by elastic component, this discharging opening of crossing the screen cloth bucket docks with the charging aperture of feeding device, this is crossed the slag charge mouth of screen cloth bucket and this and crosses the oblique below of screen cloth bucket one side and connect, and is tilted to down the sand grains of being convenient to not meet the grating particle diameter and discharges.
4. structure according to claim 3 is characterized in that, the described screen cloth bucket of crossing comprises funnel, the grid that sieves, discharging opening and the slag charge velar plate that tilts to narrow.The plane, top of this funnel is the inlet of sand material, this sand material porch is provided with the grid that sieves, this sand material plane of inlet is consistent with the incline direction of feeding device with this grid that sieves, this slag charge velar plate is just being put and had been in the sieve top of oblique next side of grid of screen cloth bucket, and parallel, and, form the slag charge mouth less than 3 centimetres at a distance of greater than 1 centimetre with the grid that sieves, the bottom of this funnel is provided with discharging opening, and this vibrator of crossing the vibration of screen cloth bucket of described driving is fixed on this and crosses on the screen cloth bucket.
5. structure according to claim 4, it is characterized in that, described feeding device is a tubular type spiral dehvery pump, it comprises a tubular body, a screw rod and a motor, this screw rod is placed through in the tubular body, the end that this motor is located at this tubular body drives described screw rod rotation, and a bottom portion that is provided with motor at this tubular body is provided with discharging opening downwards on one day, is provided with charging aperture upward on one day at the other end top of this tubular body.
6. structure according to claim 5; it is characterized in that; this control circuit stop device disposes switch, circuit overloads power-off protector and the earth protective device of described vibrator of control and the stop of feeding device motor; in this control circuit stop device, dispose inclination induction switching-off device; when the inclination of the structure of this preparation graded sand material might make the structure of this preparation graded sand material unbalance; the inclination induction switching-off device of this control circuit stop device can help dump, and sends the signal caution.
7. structure according to claim 6 is characterized in that, auxiliary wheel is toppled in the antagonism of one in this multiple bay can prevent that toppling from appearring in the structure of this preparation graded sand material when moving the structure of this preparation graded sand material.
8. structure according to claim 7, it is characterized in that, be connected with pipeline knuckle and the one section pipeline under oblique at the discharging opening of this feeding device, the scope that can fall from the sand material cloth that this discharging opening is discharged is widened, and moves the number of times that the structure of this preparation graded sand material moves when reducing the graded sand material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010624047.7A CN102211358B (en) | 2010-12-30 | 2010-12-30 | A kind of preparation method of graded sand material and the structure of enforcement the method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010624047.7A CN102211358B (en) | 2010-12-30 | 2010-12-30 | A kind of preparation method of graded sand material and the structure of enforcement the method |
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| CN102211358A true CN102211358A (en) | 2011-10-12 |
| CN102211358B CN102211358B (en) | 2015-12-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106205332A (en) * | 2016-08-31 | 2016-12-07 | 李鑫 | A kind of plate tectonice physical simulation experiment device |
| CN109569481A (en) * | 2018-12-19 | 2019-04-05 | 中铁岩锋成都科技有限公司 | A kind of liquid accelerator field production device |
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| CN87210828U (en) * | 1987-07-21 | 1988-05-18 | 河南煤炭科学研究所 | Continuous concrete proportioning and mixing machine |
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| CN106205332B (en) * | 2016-08-31 | 2019-01-22 | 李鑫 | A kind of plate tectonice physical simulation experiment device |
| CN109569481A (en) * | 2018-12-19 | 2019-04-05 | 中铁岩锋成都科技有限公司 | A kind of liquid accelerator field production device |
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| Publication number | Publication date |
|---|---|
| CN102211358B (en) | 2015-12-16 |
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