CN107479488B - Automatic control system for ore bin - Google Patents
Automatic control system for ore bin Download PDFInfo
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- CN107479488B CN107479488B CN201710866834.4A CN201710866834A CN107479488B CN 107479488 B CN107479488 B CN 107479488B CN 201710866834 A CN201710866834 A CN 201710866834A CN 107479488 B CN107479488 B CN 107479488B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G67/00—Loading or unloading vehicles
- B65G67/02—Loading or unloading land vehicles
- B65G67/04—Loading land vehicles
- B65G67/06—Feeding articles or materials from bunkers or tunnels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/04—Spreading out the materials conveyed over the whole surface to be loaded; Trimming heaps of loose materials
- B65G69/0483—Spreading out the materials conveyed over the whole surface to be loaded; Trimming heaps of loose materials with electric or magnetic means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
- B65G2201/045—Sand, soil and mineral ore
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/15—Plc structure of the system
- G05B2219/15069—Use of function modules with timer, counter, relay functions and I-O
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Aviation & Aerospace Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The utility model relates to the field of mineral conveying, in particular to an automatic control system for a mineral bin. The technical proposal is as follows: the automatic control system for the ore bin comprises an industrial personal computer, wherein the industrial personal computer is electrically connected with a PLC (programmable logic controller) controller, the PLC controller is electrically connected with an interleaving control module, the interleaving control module is electrically connected with a plurality of electromagnetic directional valves, and the electromagnetic directional valves are connected with a hydraulic cylinder for controlling the opening and closing of an opening and closing mechanism on a discharge opening of the ore bin. The utility model provides an automatic ore bin control system capable of controlling a plurality of discharge openings of an ore bin to alternately discharge, which solves the problem that a vehicle is subjected to excessive impact or rollover when the ore bin is unevenly discharged.
Description
Technical Field
The utility model relates to the field of mineral conveying, in particular to an automatic control system for a mineral bin.
Background
The traditional bulk material loading usually adopts a belt conveying mode, and the main defects are as follows: first, the transport efficiency is low, and a single conveyor takes a long time to fill a car. Secondly, can not solve viscous material loading problem, belt conveyor is fit for the bulk material that does not have the viscosity generally, can cause cylinder and belt to skid to the stronger material of viscosity, and the conveyer can not normal operating. Thirdly, the bin must be made into a cone hopper, and because of a single-point discharging mode, the bin can only be made into a cone hopper to meet the requirements, and the situation that the cone hopper part is hollow and can not discharge is frequently caused for viscous materials. Fourth, the loading is uneven, forms a pagoda shape windrow district when carrying to the freight train inside, therefore can not automatic supervision whether full, can only approximate to the visual inspection of loading, and the system is crude, can not high-efficient automatic control.
The utility model patent with the patent application number of CN201220687133.7 discloses a module combined type storage bin which comprises a storage bin and a fixing frame, wherein the storage bin is arranged on the fixing frame, and a flow dividing door is arranged on the side edge of the storage bin. The utility model adopts the rectangular funnel-shaped ore bins with steel structure, is favorable for discharging the ore materials, is not easy to block the ore discharge port, sets a plurality of ore bins to be combined in parallel according to the ore storage requirement, and utilizes the height difference to shunt the ore materials from one ore bin to other ore bins without additional power requirement, and the reinforcing plate is arranged behind the shunt gate and the fixed baffle according to the position which is frequently impacted by the ore so as to increase the impact resistance of the ore. The utility model has simple structure, simple and convenient installation, stable and reliable work, is beneficial to loading and transportation of automobiles, reduces loading cost and improves production efficiency.
Above-mentioned feed bin is carrying out the in-process of loading to the transportation vehicle, opens a plurality of discharge openings simultaneously, and the car receives the impact of quick blanking great, causes the vehicle to damage easily. The unloading port cannot uniformly load the vehicle, and when excessive mineral aggregate is loaded on one side of the carriage, the vehicle is easy to turn on one's side. Therefore, the ore bin is required to misplaced and discharged to ensure uniform loading and avoid overlarge impact on the vehicle. Currently, there is no system for controlling the alternate opening of multiple discharge openings of a mine bin in the prior art.
Disclosure of Invention
The utility model overcomes the defects of the prior art, provides the automatic control system for the ore bin, which can control the alternate discharging of the plurality of discharging openings of the ore bin, and solves the problem that the vehicle is impacted excessively or turned over when the discharging of the ore bin is uneven.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the automatic control system of the ore bin comprises an industrial personal computer, wherein the industrial personal computer is electrically connected with a PLC (programmable logic controller) which is electrically connected with an interleaving control module, and the interleaving control module is electrically connected with a plurality of electromagnetic reversing valves; the ore bin is provided with a plurality of discharging openings, a plurality of hydraulic cylinders are arranged on the ore bin, the hydraulic cylinders are connected with the opening and closing mechanisms, and the electromagnetic reversing valve is connected with the hydraulic cylinders.
As a preferable scheme of the utility model, the staggered control module comprises a time relay, the time relay is electrically connected with the PLC, a normally open contact of the time relay is electrically connected with a first switch, and the first switch is electrically connected with a positive stroke contact of one part of the electromagnetic reversing valves; the normally closed contact of the time relay is electrically connected with a second switch, the second switch is electrically connected with the positive stroke contact of the other part of electromagnetic reversing valve, and the closing time and the opening time of the time relay are the same; the reverse stroke contact of the electromagnetic reversing valve is electrically connected with the PLC.
As a preferable scheme of the utility model, the staggered control module comprises a time relay, the time relay is electrically connected with the PLC, a normally open contact of the time relay is electrically connected with a first switch, and a normally closed contact of the time relay is electrically connected with a second switch; the positive stroke contacts of the electromagnetic directional valves are connected with full-bin control modules, the output end of the first switch is electrically connected with one part of the full-bin control modules, and the second switch is electrically connected with the other part of the full-bin control modules; the full-bin control module is electrically connected with the PLC to form a feedback circuit, and a reverse stroke contact of the electromagnetic reversing valve is electrically connected with the PLC, so that the closing time and the opening time of the time relay are the same.
As a preferable scheme of the utility model, the PLC is electrically connected with an infrared sensor for detecting whether the vehicle is in place or not, and is electrically connected with an acoustic annunciator and an optical annunciator for prompting whether the vehicle is in place or not.
As a preferable scheme of the utility model, the full-bin control module comprises a plurality of radar ranging sensors, the radar ranging sensors are electrically connected with the PLC to form a feedback circuit, each discharge port is provided with one radar ranging sensor, the radar ranging sensors are electrically connected with an electromagnetic relay, one end of the full-bin switch of the full-bin control module, which is electrically connected with the first switch, one end of the full-bin switch of the full-bin control module, which is electrically connected with the second switch, and the other end of the full-bin switch is electrically connected with a positive stroke contact of the electromagnetic reversing valve.
Compared with the prior art, the utility model has the beneficial effects that:
1. the staggered control module can control the plurality of opening and closing staggered opening, so that minerals in the carriage can be more uniform when the discharge openings at different positions are opened together, and the vehicle is prevented from toppling over. The plurality of opening and closing mechanisms are opened in a staggered manner, so that the problem that the vehicle body is subjected to excessive impact when all the opening and closing mechanisms are opened simultaneously can be avoided. In conclusion, the utility model can ensure uniform charging and avoid the excessive impact or inclination of the vehicle body.
2. When the vehicle is in place, the PLC is connected with the contact of the time relay. The closing time and the opening time of the time relay are the same, and the first switch and the second switch are alternately turned on. After the electromagnetic reversing valve is connected, the hydraulic cylinder acts forward, and the opening and closing mechanism at the position is opened. When the bin is full, the PLC controller directly controls the electromagnetic reversing valve to act reversely, the piston rod of the hydraulic cylinder stretches out, and the opening and closing mechanism of the position is closed. Therefore, the two groups of discharge openings can be alternately opened, and the feeding of each discharge opening in the single group of discharge openings is uniformly distributed, so that minerals can be uniformly distributed in the carriage, and the situation that the vehicle is inclined or subjected to overlarge impact is avoided.
3. After the full bin control module is arranged, when the full bin control module on the first switch or the second switch does not detect that the position is full of bins, the electromagnetic directional valve on the circuit is connected, the hydraulic cylinder acts positively, and the opening and closing mechanism at the position is opened. When the full bin control module detects that the part where the full bin is located is full, a circuit where the full bin control module is located is disconnected, a full bin signal is fed back to the PLC controller by the full bin control module, the PLC controller directly controls the electromagnetic directional valve to act reversely, a piston rod of the hydraulic cylinder extends out, and the opening and closing mechanism of the part is closed. Therefore, the two groups of discharge openings can be alternately opened, and the feeding of each discharge opening in the single group of discharge openings is uniformly distributed, so that minerals can be uniformly distributed in the carriage, and the situation that the vehicle is inclined or subjected to overlarge impact is avoided.
4. When the infrared sensor detects that the vehicle is in place, the PLC controls the signal states of the sound annunciator and the light annunciator to change, so that a driver is reminded of the vehicle in place, and other vehicles are reminded of being incapable of entering the parking space.
5. When the radar ranging sensor detects that the bin is full, the electromagnetic relay acts, the full bin switch is disconnected, and the electromagnetic reversing valve stops acting in the forward direction. The radar ranging sensor feeds back the full bin signal to the PLC controller, and the PLC controller controls the electromagnetic reversing valve to act reversely, so that the opening and closing mechanism closes the discharge opening. The utility model can automatically close the discharge opening when the bin is full, reduces manual operation and avoids the condition of excessive mineral loading.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the structure of the present utility model including a full cartridge control module;
FIG. 3 is a partial block diagram of the ore bin;
fig. 4 is a top view of a partial structure of the ore bin.
In the figure, 1-ore bin, 2-jaw ore drawing valve, 3-hydraulic cylinder, 11-control ore bin, 21-rotary valve plate and 22-gear.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings.
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
The automatic control system for the ore bin comprises an industrial personal computer, wherein the industrial personal computer is electrically connected with a PLC (programmable logic controller) which is electrically connected with an interleaving control module, the interleaving control module is electrically connected with a plurality of electromagnetic directional valves, and the electromagnetic directional valves are connected with a hydraulic cylinder 3 for controlling the opening and closing mechanism 2 on the discharge opening 11 of the ore bin 1.
The opening and closing mechanism 2 is a jaw-type ore drawing valve, the jaw-type ore drawing valve 2 comprises two groups of rotating valve plates 21, the two groups of rotating valve plates 21 are hinged to the ore bin 1, a gear 22 is connected to the rotating valve plates 21, the gears 22 on the two groups of rotating valve plates 21 are meshed, and one end, far away from the gear 22, of one group of rotating valve plates 21 is hinged to a piston rod of the hydraulic cylinder 3. The two sets of rotary valve plates 21 are rotated in opposite directions with the two sets of gears 22 engaged with each other, and the discharge port 11 is opened. The opening and closing degree of the discharge opening 11 is controlled by controlling the extension amount of the hydraulic cylinder 3 by controlling the operation time of the hydraulic cylinder 3. The jaw ore drawing valve can ensure the accurate opening and closing of the discharge opening 11, and the opening and closing degree is easy to adjust.
The staggered control module can control a plurality of opening and closing staggered opening, so that minerals in a carriage can be more uniform when the discharge openings 11 at different positions are opened together, and the vehicle is prevented from toppling over. The staggered opening of the plurality of opening and closing mechanisms 2 can also avoid the problem that the vehicle body is subjected to excessive impact when all the opening and closing mechanisms 2 are simultaneously opened. In conclusion, the utility model can ensure uniform charging and avoid the excessive impact or inclination of the vehicle body.
For example, the number of the discharge openings 11 is six, the six discharge openings 11 are arranged in two rows, and the full-bin control modules at the two ends of the discharge openings 11 in the first row and the full-bin control module in the middle of the second row are electrically connected with the first switch; the full bin control modules at the two ends of the second row of discharge openings 11 and the full bin control module in the middle of the first row are electrically connected with a second switch. The first switch controls the full bin control modules at the two ends of the first row and the full bin control modules in the middle of the second row to act simultaneously, and the second switch controls the full bin control modules at the two ends of the second row and the full bin control modules in the middle of the first row to act simultaneously, so that the open discharge openings 11 are uniformly distributed when each action is performed, ore drawing is ensured to be more uniform, and the situation that a vehicle body is inclined due to uneven pressure is avoided.
Example two
On the basis of the first embodiment, the staggered control module comprises a time relay, the time relay is electrically connected with the PLC, a normally open contact of the time relay is electrically connected with a first switch, and the first switch is electrically connected with a positive stroke contact of one part of the electromagnetic reversing valves; the normally closed contact of the time relay is electrically connected with a second switch, the second switch is electrically connected with the positive stroke contact of the other part of electromagnetic reversing valve, and the closing time and the opening time of the time relay are the same; the reverse stroke contact of the electromagnetic reversing valve is electrically connected with the PLC.
When the vehicle is in place, the PLC is connected with the contact of the time relay. The closing time and the opening time of the time relay are the same, and the first switch and the second switch are alternately turned on. After the electromagnetic directional valve is connected, the hydraulic cylinder 3 acts forward, and the opening and closing mechanism 2 at the position is opened. When the bin is full, the PLC controller directly controls the electromagnetic reversing valve to act reversely, the piston rod of the hydraulic cylinder 3 stretches out, and the opening and closing mechanism 2 at the position is closed. Therefore, the two groups of discharge openings 11 can be opened alternately, and the feeding of each discharge opening 11 in a single group of discharge openings 11 is uniformly distributed, so that minerals can be uniformly distributed in the carriage, and the situation that the vehicle is inclined or subjected to overlarge impact is avoided.
Example III
On the basis of the first embodiment or the second embodiment, the staggered control module comprises a time relay, the time relay is electrically connected with the PLC, a normally open contact of the time relay is electrically connected with a first switch, and a normally closed contact of the time relay is electrically connected with a second switch; the positive stroke contacts of the electromagnetic directional valves are connected with full-bin control modules, the output end of the first switch is electrically connected with one part of the full-bin control modules, and the second switch is electrically connected with the other part of the full-bin control modules; the full-bin control module is electrically connected with the PLC to form a feedback circuit, and a reverse stroke contact of the electromagnetic reversing valve is electrically connected with the PLC, so that the closing time and the opening time of the time relay are the same.
After the full bin control module is arranged, when the full bin control module on the first switch or the second switch does not detect that the position is full of bins, the electromagnetic directional valve on the circuit is connected, the hydraulic cylinder 3 acts positively, and the opening and closing mechanism 2 at the position is opened. When the full bin control module detects that the part where the full bin is located is full, a circuit where the full bin control module is located is disconnected, a full bin signal is fed back to the PLC controller by the full bin control module, the PLC controller directly controls the electromagnetic directional valve to act reversely, a piston rod of the hydraulic cylinder 3 extends out, and the opening and closing mechanism 2 at the part is closed. Therefore, the two groups of discharge openings 11 can be opened alternately, and the feeding of each discharge opening 11 in a single group of discharge openings 11 is uniformly distributed, so that minerals can be uniformly distributed in the carriage, and the situation that the vehicle is inclined or subjected to overlarge impact is avoided.
Example IV
On the basis of any one of the embodiments, the PLC controller is electrically connected with an infrared sensor for detecting whether the vehicle is in place, and the PLC controller is electrically connected with an acoustic annunciator and an optical annunciator for prompting whether the vehicle is in place.
When the infrared sensor detects that the vehicle is in place, the PLC controls the signal states of the sound annunciator and the light annunciator to change, so that a driver is reminded of the vehicle in place, and other vehicles are reminded of being incapable of entering the parking space.
Example five
On the basis of any one of the above embodiments, the full-bin control module includes a plurality of radar ranging sensors, the radar ranging sensors are electrically connected with the PLC controller to form a feedback circuit, one radar ranging sensor is mounted on each discharge port, the radar ranging sensors are electrically connected with electromagnetic relays, the electromagnetic relays are electrically connected with full-bin switches, one ends of the full-bin switches of the full-bin control module electrically connected with the first switches are electrically connected with the first switches, one ends of the full-bin switches of the full-bin control module electrically connected with the second switches are electrically connected with the second switches, and the other ends of the full-bin switches are electrically connected with positive-stroke contacts of the electromagnetic directional valve.
When the radar ranging sensor detects that the bin is full, the electromagnetic relay acts, the full bin switch is disconnected, and the electromagnetic reversing valve stops acting in the forward direction. The radar ranging sensor feeds back the full-bin signal to the PLC controller, the PLC controller controls the electromagnetic reversing valve to act reversely, and the opening and closing mechanism 2 closes the discharge opening. The utility model can automatically close the discharge opening when the bin is full, reduces manual operation and avoids the condition of excessive mineral loading.
Claims (3)
1. The automatic control system for the ore bin is characterized by comprising an industrial personal computer, wherein the industrial personal computer is electrically connected with a PLC (programmable logic controller) which is electrically connected with a staggered control module, the staggered control module is electrically connected with a plurality of electromagnetic directional valves, and the electromagnetic directional valves are connected with a hydraulic cylinder (3) for controlling the opening and closing of an opening and closing mechanism (2) on a discharge opening (11) of the ore bin (1);
the staggered control module comprises a time relay, the time relay is electrically connected with the PLC, a normally open contact of the time relay is electrically connected with a first switch, and the first switch is electrically connected with a positive stroke contact of one part of the electromagnetic reversing valves; the normally closed contact of the time relay is electrically connected with a second switch, the second switch is electrically connected with the positive stroke contact of the other part of electromagnetic reversing valve, and the closing time and the opening time of the time relay are the same; the reverse stroke contact of the electromagnetic reversing valve is electrically connected with the PLC; or, the staggered control module comprises a time relay, the time relay is electrically connected with the PLC, a normally open contact of the time relay is electrically connected with a first switch, and a normally closed contact of the time relay is electrically connected with a second switch; the positive stroke contacts of the electromagnetic directional valves are connected with full-bin control modules, the output end of the first switch is electrically connected with one part of the full-bin control modules, and the second switch is electrically connected with the other part of the full-bin control modules; the full-bin control module is electrically connected with the PLC to form a feedback circuit, a reverse stroke contact of the electromagnetic reversing valve is electrically connected with the PLC, and the closing time and the opening time of the time relay are the same;
the opening and closing mechanism (2) is a jaw-type ore drawing valve, the jaw-type ore drawing valve comprises two groups of rotating valve plates (21), the two groups of rotating valve plates (21) are hinged with the ore bin (1), a gear (22) is connected to the rotating valve plates (21), the gears (22) on the two groups of rotating valve plates (21) are meshed, and one end, far away from the gear (22), of one group of rotating valve plates (21) is hinged with a piston rod of the hydraulic cylinder (3); the two groups of rotary valve plates (21) rotate in opposite directions under the condition that the two groups of gears (22) are meshed with each other, the discharge opening (11) is opened, the elongation of the hydraulic cylinder (3) is controlled by controlling the action time of the hydraulic cylinder (3), so that the opening and closing degree of the discharge opening (11) is controlled, the jaw ore drawing valve can ensure the accurate opening and closing of the discharge opening (11), and the opening and closing degree is easy to adjust.
2. The automatic control system of the ore bin according to claim 1, wherein the PLC is electrically connected with an infrared sensor for detecting whether the vehicle is in place or not, and is electrically connected with an acoustic annunciator and an optical annunciator for prompting whether the vehicle is in place or not.
3. The mine bin automatic control system according to claim 1, wherein the full bin control module comprises a plurality of radar ranging sensors, the radar ranging sensors are electrically connected with the PLC to form a feedback circuit, one radar ranging sensor is installed on each discharging opening, the radar ranging sensors are electrically connected with electromagnetic relays, the electromagnetic relays are electrically connected with full bin switches, one ends of the full bin switches of the full bin control module electrically connected with the first switches are electrically connected with the first switches, one ends of the full bin switches of the full bin control module electrically connected with the second switches are electrically connected with the second switches, and the other ends of the full bin switches are electrically connected with positive-stroke contacts of the electromagnetic directional valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710866834.4A CN107479488B (en) | 2017-09-22 | 2017-09-22 | Automatic control system for ore bin |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710866834.4A CN107479488B (en) | 2017-09-22 | 2017-09-22 | Automatic control system for ore bin |
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| CN107479488A CN107479488A (en) | 2017-12-15 |
| CN107479488B true CN107479488B (en) | 2023-09-22 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102018213079A1 (en) * | 2018-08-06 | 2020-02-06 | Thyssenkrupp Ag | System for the continuous loading of commercial vehicles |
| CN115057257A (en) * | 2022-07-01 | 2022-09-16 | 上海宝田新型建材有限公司 | Detection and control system for preventing expansion damage of ore powder bulk head chute barrel |
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