CN112933675A - Four-vehicle electric power moving system of large-diameter thickener - Google Patents
Four-vehicle electric power moving system of large-diameter thickener Download PDFInfo
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- CN112933675A CN112933675A CN202110151355.0A CN202110151355A CN112933675A CN 112933675 A CN112933675 A CN 112933675A CN 202110151355 A CN202110151355 A CN 202110151355A CN 112933675 A CN112933675 A CN 112933675A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
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Abstract
The invention provides a four-truck electric moving system of a large-diameter concentrator, which comprises four truck channels arranged below a tank body of the concentrator, wherein a first truck channel and a second truck channel are arranged on the same straight line and are symmetrical about the center below the tank body, a third truck channel and a fourth truck channel are symmetrically arranged on two sides of the center line of the first truck channel and the second truck channel, each truck channel comprises paired steel columns arranged at equal intervals, a supporting cross beam is connected between each pair of steel columns, a truck is arranged in each truck channel, a pair of electric hydraulic push rods are arranged on a truck plate of each truck according to the intervals, and the electric hydraulic push rods are connected with the supporting cross beams on the upper parts of the electric hydraulic push rods. According to the invention, the truck channel is connected with the truck through the electric hydraulic push rod, the thickener is lifted off the ground through the electric hydraulic push rod, and the movement of the truck drives the thickener to move, so that the manpower is saved and the working efficiency is improved.
Description
Technical Field
The invention relates to the technical field of concentrating machines in concentrating plants, in particular to a four-vehicle electric power moving system of a large-diameter concentrating machine.
Background
At present, because the ore grade of many open-pit mines, especially open-pit iron mines, is high and generally reaches 45% -55%, the grade of the part of open-pit mines can be improved to 58% -65% only by simple crushing-ore washing or crushing-ore washing-gravity separation or large-particle size pre-selection, so that iron ore concentrate with good quality can be obtained for sale.
Since current surface mines, particularly large surface mines, typically consist of multiple mine segments, the mining area is constantly changing even in the same segment. Most of the open-pit iron ores are constructed in a fixed separation plant, and then raw ores mined from all ore sections are conveyed to the separation plant for treatment. Often, the distance between the selected factory and the stope is very long, so that the construction cost and the transportation cost of a transportation road of the raw ore are increased, and the fixed factory selection is difficult to be repeatedly utilized in other mines after the mine service is finished, so that the sink waste of the assets is caused.
Therefore, it is desirable to construct a fully mobile modular beneficiation plant, in which each operation unit of the beneficiation plant is disposed on each mobile carrier, so that each operation unit of beneficiation can be disposed nearby a mining area, and the beneficiation operation units are continuously moved along with changes of the mining area. Therefore, the transportation cost and the transportation road cost of the raw ore can be reduced to the greatest extent, and the modularized movable ore dressing operation unit can recombine and move each operation to other mines for continuous service after the service life of the mines is over, so that the ore dressing facility is recycled, and the repeated investment of the ore dressing facility is avoided.
But for the modularized selecting factory in the flow of crushing-washing ore or crushing-washing-gravity separation or large-granularity preselection, because slime is generated in the flow, the slime needs to be concentrated to realize the backfill of the mining pit by the slime and the recycling of overflow water. Concentrators are subject to their ring configuration and large diameter, and currently have no suitable modular moving equipment. Due to the difficulty of modularization movement of concentration operation, the current selection plants of open-pit rich mines with many processes of crushing-ore washing, crushing-ore washing-gravity separation or large-particle size pre-selection have not been constructed in a modularization way.
The current surface mine is generally large in scale, the size of a thickener is usually more than 30 meters in diameter, the diameter is large, the weight is also large, and the key point for realizing the modularized transportation of the thickener is how to lift the thickener with the large diameter and how to reduce the load of a tractor when the thickener with the large diameter is transported. In addition, the thickener is heavy, and the whole equipment needs to be lifted when the thickener is moved, so that a simple and effective thickener lifting device which does not need manpower is needed.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a four-truck electric power moving system for a large-diameter thickener, in which a truck passage is provided at a lower portion of an overhead steel-structured thickener, the truck passage is connected to a truck through an electric hydraulic push rod, the thickener is lifted off the ground through the electric hydraulic push rod, the thickener is moved by the movement of the truck, thereby saving manpower and improving work efficiency.
The invention provides a four-truck electric power moving system of a large-diameter thickener, which comprises a first truck channel, a second truck channel, a third truck channel and a fourth truck channel which are arranged below a tank body of an elevated steel structure thickener, wherein the first truck channel and the second truck channel respectively comprise paired steel columns which are arranged at equal intervals from the center to the edge of the lower part of the tank body, the first truck channel and the second truck channel are on the same straight line and are symmetrical relative to the center of the lower part of the tank body, the third truck channel and the fourth truck channel are symmetrically arranged at two sides of the center line of the first truck channel and the second truck channel, the third truck channel and the fourth truck channel are parallel to the center line, the distance between the third truck channel and the center line is half of the radius of the tank body, the third truck channel and the fourth truck channel comprise paired steel columns arranged according to the intervals, each pair of steel columns is fixedly connected with the lower portion of the pool body, supporting cross beams are connected between each pair of steel columns, the height of each supporting cross beam is identical, the heads of a first truck and a second truck in the first truck channel and the second truck channel are located on the outer portion of the pool body, the heads of a third truck and a fourth truck in the third truck channel and the fourth truck channel are located on the outer portion of the pool body in the same direction, paired electric hydraulic push rods are arranged on the truck boards of the first truck, the second truck, the third truck and the fourth truck according to the intervals, and the electric hydraulic push rods are connected with the supporting cross beams on the upper portions of the electric hydraulic push rods.
The widths of the sweep of the first truck, the second truck, the third truck and the fourth truck are all equal, the sweep is a cover plate fixedly arranged at the upper part of a compartment of the truck, and the distance between two steel columns of each pair of steel columns is 1.1-1.2 times of the width of the sweep.
The distance is 1.5m-2.5 m.
At least two supporting longitudinal beams are connected between each supporting cross beam and the lower part of the tank body.
The supporting cross beam is made of square steel, the lower part of the supporting cross beam is connected with a clamping groove, the length of the clamping groove is the same as that of the supporting cross beam, and two sides of the clamping groove are respectively connected with two sides of the supporting cross beam; and the base of the electric hydraulic push rod is arranged below the sweep, the push rods of the electric hydraulic push rod are respectively connected to two ends of the bottom of the clamping groove, and the push rods penetrate through the sweep.
The supporting beam is provided with a shaft hole, the shaft holes in the two sides of the clamping groove are correspondingly connected through connecting shafts, and nuts are installed at two ends of each connecting shaft.
The maximum stroke of the electric hydraulic push rod is 0.5m-1 m.
The first truck, the second truck, the third truck and the fourth truck are all provided with generators, and the generators supply power for electric hydraulic push rods on the trucks where the generators are located.
Control platforms are arranged in the driving chambers of the first truck, the second truck, the third truck and the fourth truck, and the control platforms are used for controlling reversible motors of all electric hydraulic push rods on the truck where the control platforms are located.
According to the four-vehicle electric power moving system of the large-diameter thickener, a truck channel is arranged below the elevated steel structure thickener and consists of paired steel columns, a supporting beam is connected between the paired steel columns and is connected with a truck board through an electric hydraulic push rod, the whole thickener is lifted off the ground by adjusting the electric hydraulic push rod between the supporting beam and the truck board, and the truck drives the thickener to move. The realization is as an independent complete module with whole thickener, thereby realized the quick migration of thickener module along with the regional change in stope and established, thereby the difficult problem of the great circular thickener of diameter migration has been solved, thereby for the whole open-air rich iron mine's the construction of the full modularization removal plant selection has solved the key restriction difficult problem, and reduced the migration distance of concentrated ore pulp and slime, also realized the nearby cyclic utilization of overflow water, practiced thrift the energy consumption and reduced cost of transportation and road construction expense, the reuse of concentrated module facility has been realized, and adopt the height of electronic hydraulic push rod promotion thickener, the manpower has been saved and the work efficiency has been improved, more be favorable to steadily promoting.
To the accomplishment of the foregoing and related ends, one or more aspects of the invention comprise the features hereinafter fully described and particularly pointed out in the claims. The following description and the annexed drawings set forth in detail certain illustrative aspects of the invention. These aspects are indicative, however, of but a few of the various ways in which the principles of the invention may be employed. Further, the present invention is intended to include all such aspects and their equivalents.
Drawings
Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following description and appended claims, taken in conjunction with the accompanying drawings. In the drawings:
fig. 1 is a schematic structural diagram illustrating a fixed state of a four-car power transfer system of a large-diameter thickener according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a moving state of a four-car power moving system of a large-diameter thickener according to an embodiment of the invention;
FIG. 3 is a schematic structural view of section A-A in FIG. 2;
FIG. 4 is a schematic structural view of a section B-B in FIG. 2;
FIG. 5 is an enlarged view of section C of FIG. 2;
FIG. 6 is an enlarged view of portion D of FIG. 2;
the system comprises a 1-thickener, a 2-tank body, a 3-first truck channel, a 4-second truck channel, a 5-third truck channel, a 6-fourth truck channel, a 7-supporting cross beam, an 8-paired steel column, a 9-first truck, a 10-second truck, an 11-third truck, a 12-fourth truck, a 13-steel supporting column, a 14-baseboard, a 15-supporting longitudinal beam, a 16-clamping groove, a 17-electric hydraulic push rod, an 18-connecting shaft and a 19-generator.
The same reference numbers in all figures indicate similar or corresponding features or functions.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, 2, 3, 4, 5 and 6, the moving system of the large-diameter thickener according to the present embodiment can be used for fixedly arranging the elevated steel-structure thickener on the ground and moving the whole thickener. The tank body 2 of the elevated steel structure thickener is in a bucket shape or a round shape, a plurality of steel support columns 13 are arranged at the lower part of the tank body 2, the whole thickener 1 is elevated, the diameter of the tank body 2 is difficult to move left and right within 30 meters, and the invention is provided for facilitating the movement.
The invention comprises a first truck channel 3, a second truck channel 4, a third truck channel 5 and a fourth truck channel 6 arranged below a tank body 2 of a thickener of an elevated steel structure. When the concentrator 1 does not need to be moved, the four truck channels are used for supporting the concentrator, when the concentrator needs to be moved, a heavy truck is arranged in each truck channel, the truck channels are connected with the plate of the truck, the truck carrying truck channels carry the whole concentrator 1 to be lifted by 0.5m-1m, and the movement of the truck drives the concentrator 1 to move. In order to improve the efficiency of the truck for lifting the thickener, an electric hydraulic push rod is arranged between a truck plate and a truck channel to jack up the thickener. The vehicle plate is a cover plate fixedly arranged on the upper part of the truck carriage, and the area of the vehicle plate covered on the upper part of the truck carriage is basically the same as that of the truck carriage.
In order to facilitate the fixation of the thickener with the ground and the separation of the thickener from the ground, a footing plate 14 is welded at the bottom of a steel support column 13 below the tank body 2, four holes are uniformly arranged on the footing plate 14, holes can be arranged at four corners of the footing plate, and bolts are penetrated in the holes to be connected with the ground. The footing plate 14 is fixed to the ground by bolts in a fixed state when the thickener 1 is operated, and is moved in a state where the thickener 1 is transported, and the footplate is separated from the ground by removing the bolts. The bolt can be a ground bolt, and is an inverted bolt with a nut below an upper screw rod.
The first truck channel 3 and the second truck channel 4 each comprise pairs of steel columns 8 arranged at equal intervals from the centre to the edge below the tank body 2, the centre lines of the first truck channel 3 and the second truck channel 4 are on the same straight line, and the first truck channel 3 and the second truck channel 4 are symmetrical about the centre below the tank body 2.
Third and fourth truck passageways 5, 6 are symmetrically disposed on either side of the centerlines of the first and second truck passageways 3, 4, and the third and fourth truck passageways 5, 6 are both parallel to the centerlines of the first and second truck passageways 3, 4, i.e., the third and fourth truck passageways 5, 6 are symmetrical about the centerlines of the first and second truck passageways 3, 4. The distance between the third truck passage 5 and the central line can be half of the radius of the tank body 2, and the distance between the third truck passage 5 and the central line is also half of the radius of the tank body 2. The third truck channel 5 and the fourth truck channel 6 each comprise a pair of steel columns 8 arranged at equal intervals below the tank body 2.
The width of the truck bed between two columns of the paired columns 8 is equal, the width of the bed in each truck aisle is equal, and the distance between two columns of each paired column 8 is equal, which may be 1.1-1.2 times the width of the bed, and is typically 3-3.5 meters.
When the thickener 1 is in a fixed setting state, the paired steel columns 8 are also fixed on the ground, a footing plate can be welded at the bottom of the steel columns, holes are arranged at the four corners of the footing plate, and bolts pass through the holes to be connected with the ground; when the thickener 1 is in a moving state, the footing plate is separated from the ground, and the bolt is disassembled.
Each pair of steel columns 8 is fixedly connected with the lower part of the pool body 2 and can be connected with the steel columns through threads by a support arranged below the pool body 2. In order to facilitate the connection of each truck passage with the deck, a supporting beam 7 is connected between each pair of paired steel columns 8, the height of each supporting beam 7 is the same, the supporting beams 7 are mainly used for being connected with the deck, and the deck erects the whole thickener 1 through all the supporting beams 7. In order to facilitate the vehicle plate to easily erect the supporting cross beam, paired electric hydraulic push rods 17 are arranged on the vehicle plate of each truck according to the intervals, and the electric hydraulic push rods 17 are connected with the supporting cross beam 7 on the upper portion of each electric hydraulic push rod 17.
At least two supporting longitudinal beams 15 are connected between each supporting cross beam 7 and the lower part of the tank body 2, so that the connection between the supporting cross beams 7 and the tank body 2 is reinforced, the weight of the thickener 1 is more uniformly distributed on the supporting cross beams 7, and the supporting cross beams 7 are prevented from bending and the stability of movement is ensured.
The supporting beam 7 can be made of square steel, the lower portion of the supporting beam 7 is connected with a U-shaped clamping groove 16, the length of the clamping groove 16 is equal to that of the supporting beam 7, the width of the clamping groove 16 is 1.1-1.15 times that of the supporting beam 7, the supporting beam 7 can be clamped inside the clamping groove 16, and the distance between the bottom of the clamping groove 16 and the bottom of the supporting beam 7 is 400-600 mm. The risers of draw-in groove 16 both sides all are connected with supporting beam 7's both sides, and the connected mode can be for evenly being provided with the shaft hole at supporting beam 7 upper level, evenly be provided with the shaft hole at the both sides riser level of draw-in groove 16, and the shaft hole on supporting beam 7 passes through connecting axle 18 with the shaft hole of the both sides riser of draw-in groove 16 and corresponds the connection, all installs the nut fastening at the both ends of every connecting axle 18, and the interval of connecting axle 18 can be 300 mm.
The two ends of the bottom of the clamping groove 16 are respectively connected with the upper parts of push rods of the electric hydraulic push rods 17, paired holes are formed in the sweep at equal intervals and correspond to the push rods one to one, the lower parts of the push rods penetrate through the corresponding holes, and the bases of the electric hydraulic push rods 17 are fixedly connected below the sweep through bolts. The push rod is lifted between the upper part of the vehicle plate and the clamping groove. The carriage is provided with enough height to accommodate the height of the electric hydraulic push rod base. The maximum stroke of the electric hydraulic push rod is 0.5m-1m, and the thickener can be erected by 0.5m-1 m.
A generator 19 is arranged on each truck, and the generator 19 supplies power to the electric hydraulic push rod on the truck where the generator is arranged, so that sufficient power supply is guaranteed. A control platform is arranged in a cab of each truck and controls reversible motors of all electric hydraulic push rods on the truck where the control platform is located. All the electric hydraulic push rods on one truck are uniformly controlled by one control platform, so that synchronous lifting of the electric hydraulic push rods can be guaranteed, and stable operation of moving is guaranteed.
The control platforms on the four trucks are controlled simultaneously, all the electric hydraulic push rods on the four trucks are lifted or lowered simultaneously, and synchronous stress of all the supporting beams is guaranteed, so that the heights of the supporting beams 7 and the clamping grooves 16 are adjusted, the height of the whole thickener 1 is adjusted, and the thickener 1 is lifted off or falls to the ground. The thickener 1 is lifted off the ground and then transported by moving a truck.
A first truck 9 is provided in the first truck bed 3, a second truck 10 is provided in the second truck bed 4, the heads of the first truck 9 and the second truck 10 are both directed to the outside of the tank body 2, a third truck 11 is provided in the third truck bed 5, a fourth truck 12 is provided in the fourth truck bed 6, the heads of the third truck 11 and the fourth truck 12 are both located outside the tank body 2 and are in the same direction, and paired electric hydraulic rams are provided at equal intervals on the deck of the first truck 9, the second truck 10, the third truck 11, and the fourth truck 12.
The length of the respective truck may be selected according to the length of the aisle of each truck, the height of the bed of each truck being the same. The distance may be 1.5m-2.5m, the size of which and the loading capacity of the truck may be chosen according to the total weight of the thickener 1.
When the thickener 1 is in a moving state, a truck is opened in each truck channel, the clamping groove 16 and the supporting cross beam 7 are connected, all the electric hydraulic push rods are controlled to be lifted, the steel supporting columns are lifted off the ground, the heads of three trucks run in the same direction and the forward direction, and the head of one truck runs in the reverse direction. When the thickener 1 is fixedly arranged, all the electric hydraulic push rods are controlled to be lowered at the same time, the steel support columns fall to the ground, the connecting shaft 18 is disassembled in each truck channel, the clamping groove 16 is disassembled, the truck and the supporting beam 7 are separated, and the truck is driven away.
The invention has simple structure, and the four sides surrounding the center form a large stress area, so that the four sides of the concentrator are stressed, the stability of the concentrator during moving is greatly improved, and the possibility of the side turning of the concentrator is avoided. The moving process can be realized only by disassembling and assembling bolts, controlling the lifting of the electric hydraulic push rod and the traction of a truck. The moving speed is high, the whole moving of the thickener is completed, and thus the operating rate of the whole mineral processing system is guaranteed.
The four-car power transfer system of the large-diameter concentrator according to the present invention is described above by way of example with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that various modifications may be made to the four-car power transfer system for a large diameter thickener as set forth above without departing from the scope of the invention. Therefore, the scope of the present invention should be determined by the contents of the appended claims.
Claims (9)
1. A four-truck electric power moving system of a large-diameter thickener is characterized by comprising a first truck channel, a second truck channel, a third truck channel and a fourth truck channel which are arranged below a tank body of the elevated steel structure thickener, wherein,
the first truck passage and the second truck passage each comprise pairs of steel columns arranged at equal intervals from the centre to the edge below the tank body, the first truck passage and the second truck passage are collinear and symmetrical about the centre below the tank body,
the third truck passage and the fourth truck passage are symmetrically arranged on two sides of a center line of the first truck passage and the second truck passage, the third truck passage and the fourth truck passage are parallel to the center line, the distance between the third truck passage and the center line is half of the radius of the tank body, the third truck passage and the fourth truck passage both comprise paired steel columns arranged according to the distance,
every pair of steel columns all with cell body below fixed connection, all be connected with supporting beam between every pair of steel column, every supporting beam's height is the same, divide to locate first truck passageway with the head of first truck in the second truck passageway and second truck all is located the outside of cell body, divide to locate third truck passageway with the head of third truck and fourth truck all is located in the fourth truck passageway the outside and the syntropy of cell body first truck, the second truck, the third truck with all be provided with mated electric hydraulic push rod according to the interval on the sweep of fourth truck, electric hydraulic push rod all is connected with its upper portion supporting beam.
2. The four-car power transfer system of a large-diameter concentrator of claim 1, wherein the widths of the decks of the first truck, the second truck, the third truck and the fourth truck are all equal, and the deck is a cover plate fixedly disposed on the upper portion of the trunk of the truck, and the distance between the two steel columns of each pair of steel columns is 1.1 times to 1.2 times the width of the deck.
3. The four-car power transfer system of a large diameter concentrator of claim 1, wherein said pitch is 1.5m-2.5 m.
4. The four-car power transfer system of the large-diameter thickener of claim 1, wherein at least two support longitudinal beams are connected between each support cross beam and the lower side of the tank body.
5. The four-car power transfer system of a large diameter concentrator of claim 1,
the supporting cross beam is made of square steel, the lower part of the supporting cross beam is connected with a clamping groove, the length of the clamping groove is the same as that of the supporting cross beam, and two sides of the clamping groove are respectively connected with two sides of the supporting cross beam; and the base of the electric hydraulic push rod is arranged below the sweep, the push rods of the electric hydraulic push rod are respectively connected to two ends of the bottom of the clamping groove, and the push rods penetrate through the sweep.
6. The four-vehicle electric power transfer system of the large-diameter thickener according to claim 5, wherein shaft holes are horizontally and uniformly formed in the supporting beam and on both sides of the clamping groove, the shaft holes in the supporting beam and the shaft holes on both sides of the clamping groove are correspondingly connected through connecting shafts, and nuts are mounted at both ends of each connecting shaft.
7. The four-car electrical locomotion system of the large-diameter concentrator of claim 5, wherein the maximum stroke of the electro-hydraulic push rod is 0.5m to 1 m.
8. The four-car power transfer system of a large diameter concentrator of claim 1, wherein a generator is provided on each of the first, second, third and fourth trucks, the generator providing power to the electro-hydraulic rams of the truck on which it is located.
9. The four-car electrical locomotion system of the large-diameter concentrator of claim 1, wherein a control platform is provided in the cab of each of the first, second, third and fourth trucks for controlling the reversible motors of all the electro-hydraulic rams on the truck in which it is located.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110151355.0A CN112933675A (en) | 2021-02-03 | 2021-02-03 | Four-vehicle electric power moving system of large-diameter thickener |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110151355.0A CN112933675A (en) | 2021-02-03 | 2021-02-03 | Four-vehicle electric power moving system of large-diameter thickener |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2533591A1 (en) * | 1968-01-13 | 1977-01-27 | Bischoff Gasreinigung | Dense sludge handling system - for transferring sludge from an effluent treatment chamber to a sludge thickener |
| US4859346A (en) * | 1988-06-17 | 1989-08-22 | Bakers Hughes Inc. | Ground mounted traction drive and method for sedimentation device |
| CN102689736A (en) * | 2012-06-01 | 2012-09-26 | 中国核工业第五建设有限公司 | Special supporting device of cover head of nuclear island containment vessel made of steel and transportation method |
| CN103272412A (en) * | 2013-06-05 | 2013-09-04 | 北方重工集团有限公司 | Thickener-use steel structure pool body having radial beams and arc bottom plates |
| CN106744483A (en) * | 2017-01-22 | 2017-05-31 | 常州工程职业技术学院 | A kind of small-sized hydraulic lifts electrocar |
| CN207175343U (en) * | 2017-09-09 | 2018-04-03 | 深圳市万丰装饰设计工程有限公司 | A kind of exterior wall finishing lifting type workbench |
| CN110063133A (en) * | 2019-03-18 | 2019-07-30 | 徐州盛斗士生物科技有限公司 | A kind of Chinese pear-leaved crabapple is lossless to go handle picking bionic gecko distinguishing to pick up screening car |
-
2021
- 2021-02-03 CN CN202110151355.0A patent/CN112933675A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2533591A1 (en) * | 1968-01-13 | 1977-01-27 | Bischoff Gasreinigung | Dense sludge handling system - for transferring sludge from an effluent treatment chamber to a sludge thickener |
| US4859346A (en) * | 1988-06-17 | 1989-08-22 | Bakers Hughes Inc. | Ground mounted traction drive and method for sedimentation device |
| CN102689736A (en) * | 2012-06-01 | 2012-09-26 | 中国核工业第五建设有限公司 | Special supporting device of cover head of nuclear island containment vessel made of steel and transportation method |
| CN103272412A (en) * | 2013-06-05 | 2013-09-04 | 北方重工集团有限公司 | Thickener-use steel structure pool body having radial beams and arc bottom plates |
| CN106744483A (en) * | 2017-01-22 | 2017-05-31 | 常州工程职业技术学院 | A kind of small-sized hydraulic lifts electrocar |
| CN207175343U (en) * | 2017-09-09 | 2018-04-03 | 深圳市万丰装饰设计工程有限公司 | A kind of exterior wall finishing lifting type workbench |
| CN110063133A (en) * | 2019-03-18 | 2019-07-30 | 徐州盛斗士生物科技有限公司 | A kind of Chinese pear-leaved crabapple is lossless to go handle picking bionic gecko distinguishing to pick up screening car |
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Application publication date: 20210611 |