CN117299325A - Automatic metal sundry removing process for broken stone production line - Google Patents
Automatic metal sundry removing process for broken stone production line Download PDFInfo
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- CN117299325A CN117299325A CN202311593046.4A CN202311593046A CN117299325A CN 117299325 A CN117299325 A CN 117299325A CN 202311593046 A CN202311593046 A CN 202311593046A CN 117299325 A CN117299325 A CN 117299325A
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- turning plate
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- 239000004575 stone Substances 0.000 title claims abstract description 198
- 239000002184 metal Substances 0.000 title claims abstract description 113
- 238000000034 method Methods 0.000 title claims abstract description 56
- 230000008569 process Effects 0.000 title claims abstract description 50
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 239000012535 impurity Substances 0.000 claims abstract description 62
- 239000002893 slag Substances 0.000 claims abstract description 21
- 239000000725 suspension Substances 0.000 claims description 57
- 239000000428 dust Substances 0.000 claims description 51
- 230000009471 action Effects 0.000 claims description 14
- 230000033001 locomotion Effects 0.000 claims description 13
- 230000000694 effects Effects 0.000 abstract description 24
- 230000005611 electricity Effects 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 description 11
- 238000001179 sorption measurement Methods 0.000 description 9
- 239000002245 particle Substances 0.000 description 8
- 230000007423 decrease Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 241000277275 Oncorhynchus mykiss Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002969 artificial stone Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/16—Magnetic separation acting directly on the substance being separated with material carriers in the form of belts
- B03C1/18—Magnetic separation acting directly on the substance being separated with material carriers in the form of belts with magnets moving during operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
Abstract
The invention relates to a process for automatically removing metal impurities in a broken stone production line, which belongs to the technical field of broken stone production and comprises the following steps of: step one: the hole slag stones are primarily crushed by the head crushing assembly and conveyed to the first conveyor belt; step two: the control module judges and executes the third step or the fourth step according to the weight data of the stones on the first conveyor belt; step three: the stones are conveyed to the turning plate and stopped, the turning plate is unfolded and vibrates the hole slag on the turning plate, the suspended electromagnet adsorbs metal impurities in the stones, the first conveyor belt starts the stones to move to the second conveyor belt, and then the fifth step is executed; step four: the turning plate is not unfolded, and the rest steps are the same as the third step; step five: the second conveyor belt conveys stones on the second conveyor belt to the upper edge of the inclined plate, the pusher pushes the stones on the second conveyor belt down the inclined plate and moves the stones to the third conveyor belt, and the stones are secondarily crushed along the third conveyor belt; it has the advantages of saving electricity and better metal separation effect.
Description
Technical Field
The invention belongs to the technical field of stone breaking production, and particularly relates to a process for automatically removing metal impurities in a stone breaking production line.
Background
The broken stone refers to small granular stone obtained by crushing, screening and other processing, is usually obtained by mechanically crushing, screening and other working procedures of natural stone or artificial stone, and is widely applied to the fields of concrete batching in constructional engineering, roadbed laying in railway engineering, foundation reinforcement, decoration and the like.
In the mechanical crushing process, part of crushed stone raw materials are formed by tunnel slag, steel heads, steel guide pipes and other metal impurities are usually entrained in the tunnel slag and enter a crusher along with the stone through a conveyor belt, and as the crusher is designed for crushing the stone, the crusher is damaged possibly when crushing the metal impurities; however, because the mass and the volume of stones fed by the stone production line are inconsistent in the actual stone production process, and in the process of metal recovery, when the stone volume is larger, metal impurities are buried in the stone pile deeply, when the electromagnet power is smaller, the electromagnet is difficult to suck out part of the metal impurities through electromagnetic force, the removal of the metal impurities is not thorough, when the electromagnet power is overlarge, the waste of electric energy is caused, and when the stone volume and the stone mass are larger, the stone needs to be turned to a certain extent, so that the metal impurities buried in the stone are separated from the stone pile easily due to the electromagnetic force of the electromagnet, and in the structure, the electromagnet power is relatively fixed and the turning function is not provided; meanwhile, in the structure, the absorption power of the dust is fixed, and the dust density in the unit volume of air is easy to touch the upper limit value of human body harm, so that the absorption power needs to be adjusted along with the quantity of the dust; therefore, a process for automatically removing metal impurities in a broken stone production line with adjustable metal separation efficiency and dust absorption capacity while saving electricity is required.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a process for automatically removing metal impurities in a broken stone production line, which has the characteristics of saving electricity and adjusting metal separation efficiency and dust absorption capacity.
The aim of the invention can be achieved by the following technical scheme:
a process for automatically removing metal impurities in a broken stone production line comprises the following steps:
step one: the hole slag stones are primarily crushed by the head crushing assembly and conveyed to the first conveyor belt;
step two: the weight sensor on the first conveyor belt detects the weight of stones on the first conveyor belt and uploads weight data to the control module, the control module judges whether the weight data exceeds a threshold value, if yes, the third step is executed, and if not, the fourth step is executed;
step three: the first conveyor belt conveys the primarily broken hole slag to the turning plate and stops conveying, the turning plate is unfolded and vibrates the hole slag on the turning plate, a hanging electromagnet above the turning plate moves to the upper side of the turning plate along a track and starts to adsorb metal impurities in stones, the hanging electromagnet moves to the outer side of the turning plate along the track, the hanging electromagnet is powered off, the turning plate stops vibrating and is retracted, the first conveyor belt starts to drive the stones on the following stones to push the turning plate to move to the second conveyor belt, and then step five is executed;
step four: the first conveyor belt conveys the primarily crushed hole slag to the turning plate and stops conveying, a hanging electromagnet above the turning plate moves to the position above the turning plate along a track and starts to adsorb metal impurities in stones, the hanging electromagnet moves to the outer side of the turning plate along the track, the hanging electromagnet is powered off, the first conveyor belt starts to drive the stones on the following stone to push the stones on the turning plate to move to the second conveyor belt, and then step five is executed;
step five: the second conveyer belt conveys the building stones on it to the swash plate upper edge, the pusher is with building stones propelling movement on the second conveyer belt to the swash plate on, building stones along swash plate motion to the third conveyer belt, the third conveyer belt conveys building stones to two broken subassemblies, two broken subassemblies carry out the secondary crushing to building stones.
As a preferred technical solution of the present invention, the third step further includes: the control module adjusts the power of the suspension electromagnet according to the weight data, and the suspension electromagnet above the turning plate moves to the position above the turning plate along the track and is started to adsorb metal impurities in the stone with the target power; the fourth step further comprises: the control module adjusts the power of the hanging electromagnet according to the weight data, and the hanging electromagnet above the turning plate moves to the position above the turning plate along the track and is started to adsorb metal impurities in stones with target power.
As a preferred technical solution of the present invention, the third step further includes: the control module inputs the standard weight m in advance according to the weight data m 0 And a pre-input standard power pd of the suspension electromagnet 0 Calculating target power pd, and enabling the control module to instruct the suspension electromagnet to start with the power pd; the fourth step further comprises: the control module inputs the standard weight m in advance according to the weight data m 0 And a pre-input standard power pd of the suspension electromagnet 0 Calculating target power pd, and enabling the control module to instruct the suspension electromagnet to start with the power pd;
wherein pd= [2 ] (m-m 0 -1)]×pd 0 ，0≤m≤5m 0 。
As a preferred technical solution of the present invention, each of the third and fourth steps further includes: the suspended electromagnet drives the air suction machine to move to the upper part of the turning plate and is started, the air suction machine attracts dust in broken stone on the upper surface of the turning plate, the control module adjusts the operation power of the air suction machine according to the weight data m, the electromagnet drives the air suction machine to move to the outer side of the turning plate along the track, and the direction of adjustment of the air suction machine attracts dust on the surface of the electromagnet.
As a preferred technical solution of the present invention, each of the third and fourth steps further includes: the control module inputs the standard weight m in advance according to the weight data m 0 And standard power px of aspirator 0 Calculating the power px of the aspirator, and instructing the aspirator to operate at px power; wherein px= [ lg (1.8 m/m) 0 +1)]×px 0 ，0≤m≤5m 0 。
As a preferred technical solution of the present invention, the fifth step further includes: and in the process that the stone moves to the third conveyor belt along the sloping plate, the inclined plane electromagnet on the surface of the sloping plate adsorbs metal impurities in the stone.
As a preferred technical solution of the present invention, the fifth step further includes: and the control module adjusts the power of the inclined plane electromagnet according to the weight data m.
As a preferable technical scheme of the invention, the fifth step is further carried outThe method comprises the following steps: the control module is used for controlling the power pa according to the weight data m and the pre-input inclined plane electromagnet reference power pa 0 The command ramp electromagnet operates at a power pa, where pa= [ 2++0.6m ]]×pa 0 ，0≤m≤5m 0 。
As a preferred technical scheme of the present invention, the second step further comprises the following steps: the control module judges whether the weight data exceeds a threshold value, if not, the step five is executed after the step three, otherwise, the step six is executed after the step four; the method further comprises the step six of: the pushing component equally divides the pushing action of the stone into b times, wherein b is equal to m/m 0 A rounded up value.
The beneficial effects of the invention are as follows:
(1) Through setting up the turning plate that can expand into wide rectangular channel from narrow rectangular channel, reduced the thickness of building stones in the adsorption direction, the building stones that exert pressure to metal debris in the adsorption direction are fewer, reduced the metal debris and overcome the upward motion of pressure to the degree of difficulty of hanging the electro-magnet, simultaneously through making the turning plate vibrations, the motion of building stones in the cooperation expansion process, make the building stones receive the stirring effect in the in-process of getting rid of metal debris, the metal debris that partly is buried deeply in the building stones moves to the building stones shallow under the stirring effect, the shallow building stones is less to metal debris's pressure, metal debris upward motion and electro-magnet laminating more easily under the effect of electromagnetic force, the cleaning effect to metal debris has been improved;
(2) Detecting the weight of stones in the current batch by arranging a weight sensor on the first conveyor belt, judging whether the probability and the degree of deeply buried metal sundries affect the removal of the metal sundries according to whether the weight exceeds a threshold value, executing a step III with the prior metal sundry removal effect when the judgment is affected, and executing a step IV with the prior efficiency when the judgment is not affected, thereby considering the metal sundry removal effect and the removal efficiency;
(3) By making the control module dependent on [2 ] 0 -1)]×pd 0 The running power of the suspended electromagnet is calculated, so that the rock volume is ensured to be larger, and when the degree and probability of deeply burying metal sundries are increased, the change is higherThe density of the suspended electromagnet is improved, and the cleaning effect of metal sundries is further ensured;
(4) The suction machine is arranged to attract dust attached to the air and the suspension electromagnet, so that the dust is prevented from drifting into the sliding rail to prevent the electromagnet from moving, the quantity of dust attached to the surface is reduced, and the situation that metal sundries fall off and fall back into stones due to the fact that the friction coefficient of the surface of the suspension electromagnet is too low is avoided;
(5) By letting the control module operate according to [ lg (1.8 m/m) 0 +1)]×px 0 The output result of the device is used as the operating power of the aspirator, so that the accurate regulation and control of the aspirator power according to the weight data are completed, meanwhile, when the dust density is low, the aspirator power can be quickly increased along with the potential dust generation amount, and when the dust density is high, the aspirator power can be slowly increased along with the potential dust generation amount, so that the adjustment of the aspirator power increasing rate according to the dust density is completed;
(6) Through the turning action of building stones in the motion process on the swash plate, the adsorption of inclined plane electro-magnet to metal impurity has further promoted the clearance effect to metal impurity.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic flow chart of the steps of the present invention;
FIG. 2 is a schematic diagram of the overall structure of the present invention;
FIG. 3 is a schematic view of a part of the structure of the roll-over panel of the present invention when it is unfolded;
FIG. 4 is a schematic cross-sectional view of the flip plate of the present invention forming a narrow rectangular slot;
FIG. 5 is a schematic cross-sectional view of the turning plate of the present invention forming a wide rectangular groove;
fig. 6 is a side view of the suspension electromagnet and flipping panel of the present invention.
Description of main reference numerals:
in the figure: 1. a first conveyor belt; 12. a second conveyor belt; 2. turning over the plate; 21. a bottom plate; 22. a side plate; 23. a baffle; 3. a slide rail; 31. suspending an electromagnet; 32. a suction machine; 4. a sloping plate; 5. a pusher; 51. a telescopic rod; 52. a pushing plate; 6. and a third conveyor belt.
Detailed Description
In order to further describe the technical means and effects adopted by the invention for achieving the preset aim, the following detailed description is given below of the specific implementation, structure, characteristics and effects according to the invention with reference to the attached drawings and the preferred embodiment.
Referring to fig. 1-6, a process for automatically removing metal impurities in a crushed stone production line comprises the following steps:
step one: the hole slag stone is primarily crushed by the head crushing assembly and conveyed to the first conveyor belt 1, in the embodiment, the head crushing assembly coarsely and primarily crushes the conveyed hole slag stone, the hole slag stone is crushed to a size exceeding the required size of the final grain diameter, the work load of the secondary crushing assembly for executing secondary crushing during subsequent secondary crushing is reduced, the first conveyor belt 1 is a conveyor belt driven by a rotating shaft, one end of the conveying surface of the first conveyor belt 1 is in butt joint with the discharge end of the head crushing assembly, after the head crushing assembly processes the hole slag stone, the stone is conveyed to the first conveyor belt 1 from the discharge end, and the first conveyor belt 1 carries the stone to move along the self arrangement direction;
step two: the weight sensor on the first conveyor belt 1 detects the weight of the stones on the first conveyor belt 1 and uploads the weight data to the control module, the control module judges whether the weight data exceeds a threshold value, if yes, the third step is executed, and if not, the fourth step is executed; specifically, stones are transported and processed according to batches, the production line pauses between processing two adjacent batches of stones, in the embodiment, the weight sensor comprises a plurality of weight sensors, the weight sensors are uniformly arranged on the outer surface of the first conveyor belt 1 and used for detecting the total weight of the stones in the current transportation batch, stone weight data m are uploaded to the control module, the control module inputs a stone batch weight threshold value my in advance, preferably, the threshold value is determined by operators according to the density of the stones and the stone particle size set by the head breaking assembly and is input into the control module through programming, when m is more than or equal to my, the stone volume is larger, the probability of metal sundries is deeply buried until the pressure cannot be overcome to be attached to the hanging electromagnet 31, when m is less than my, the control module executes the third step, when m is less than my, the probability and degree of the metal sundries being deeply buried are smaller, and the control module executes the fourth step;
detecting the weight of stones in the current batch by arranging a weight sensor on the first conveyor belt 1, judging whether the probability and the degree of the deep burying of the metal impurities influence the removal of the metal impurities according to whether the weight exceeds a threshold value, and executing the step III with the metal impurity removal effect priority when the judgment is influenced.
Step three: the first conveyor belt 1 conveys the primarily crushed hole slag to the turning plate 2 and stops conveying, and the turning plate 2 is unfolded and vibrates the hole slag thereon; in this embodiment, the turning plate 2 is formed by a bottom plate 21 and two side plates 22, the bottom plate 21 is rectangular parallel to the ground, the length width of the bottom plate 21 is equal to the length width of the first conveyor belt 1, one short side of the bottom plate 21 is aligned with one end of the first conveyor belt 1, which is far away from the head breaking assembly, the two side plates 22 are hinged with the two long sides of the bottom plate 21 respectively, the two side plates 22 rotate along a hinging point under the instruction of a control module, the length of each side plate 22 is consistent with the length of the bottom plate 21, meanwhile, a baffle plate 23 is arranged on each side plate 22, the baffle plate 23 is hinged with the corresponding side plate 22, the baffle plate 23 rotates along the hinging point and is always perpendicular to the ground, the side plates 22 are flush with the bottom plate 21 in an unfolded state, the side plates 22 are perpendicular to the bottom plate and are positioned above the bottom plate 21, at this moment, the turning plate 2 forms a narrow rectangular groove, and a vibrator is arranged in the bottom plate 21 and the side plates 22 to vibrate themselves; when the stone crusher is used for processing batches, the head breaking assembly spreads stones on the surface of the first conveyor belt 1, the first conveyor belt 1 conveys the stones to the turning plate 2 at the other end, as the area of the bottom plate 21 is consistent with that of the first conveyor belt 1, the stones of one batch can be accommodated in a rectangular groove formed by the moving plates, when the third step is executed, the stones are conveyed to a narrow rectangular groove formed by the turning plate 2, the turning plate 2 is unfolded, the bottom plate 21, side plates 22 with two sides of the bottom plate 21 and the same level as the bottom plate 21 and the side plates 22 form a wide rectangular groove with larger bottom area and shallower depth, and the stone is vibrated by the vibrators in the bottom plate 21 and the side plates 22, so that the stones piled in the rectangular groove are horizontally spread in the wide rectangular groove, the stones are turned over by themselves in the horizontal spreading process, and meanwhile, the thickness of the stone pile is thinned in the direction perpendicular to the ground;
subsequently, the suspension electromagnet 31 above the turning plate 2 moves to the upper side of the turning plate 2 along the track and starts to adsorb metal impurities in stones, in this embodiment, the track is arranged above the conveyor belt, the track is parallel to the ground, the arrangement direction of the track is mutually perpendicular to the arrangement direction of the conveyor belt, the lower surface of the track is provided with a sliding block electrically connected with a control module, the suspension electromagnet 31 is arranged on the sliding block, the control module drives the sliding block to drive the suspension electromagnet 31 to slide along the track, meanwhile, the suspension electromagnet 31 is in a rectangular plate shape, the length and width of the suspension electromagnet 31 are consistent with the length and width of the bottom plate 21 of the turning plate 2, in the third process, one side far away from the track is taken as a far end, the control module drives the suspension electromagnet 31 to slide to the position above the far end of a wide rectangular groove formed by the turned plate 2, at the moment, the suspension electromagnet 31 covers the far end of the wide rectangular groove, then the control module is electrified and started to the suspension electromagnet 31, the suspension electromagnet 31 applies upward electromagnetic force to metal impurities in stones, the metal impurities are influenced by the electromagnetic force to move upwards to be attached to the suspension electromagnet 31 to be adsorbed, then the control module instructs the sliding block to drive the suspension electromagnet 31 to translate proximally, the suspension electromagnet 31 is continuously covered on the area from the far end to the near end in the wide rectangular groove in the translation process, the metal impurities in the stones in the covered area are continuously adsorbed to the suspension electromagnet 31, in the process, the vibration of the turning plate 2 is transferred to the stones above, the stones are further turned under the action of the vibration, the metal impurities partially buried in the stones move to the shallow layer of the stones under the action of the turning, the pressure of the shallow layer stones on the metal impurities is smaller, the metal impurities are easier to move upwards to be attached to the electromagnets under the action of the electromagnetic force, the removal of the monitored sundries and the metal sundries in the stone breaking production is completed;
then the suspension electromagnet 31 continues to move along the track until moving to the outer side of the turning plate 2, namely not covered on the turning plate 2, the control module cuts off the power of the suspension electromagnet 31, metal sundries fall outside the conveying belt, the turning plate 2 stops vibrating and is retracted, a narrow rectangular groove is formed again, the first conveying belt 1 starts to drive follow-up stones to push the stones in the narrow rectangular groove to move to the second conveying belt 12, and then step five is executed;
through setting up the turning plate 2 that can expand into wide rectangular slot from narrow rectangular slot, reduced the thickness of building stones in the adsorption direction, exert the building stones of pressure to the metal debris in the adsorption direction less, reduced the metal debris and overcome the upward motion of pressure to the degree of difficulty of hanging the electro-magnet 31, simultaneously through making turning plate 2 shake, cooperate the motion of building stones in the expansion process, make the building stones receive the stirring effect in the course of getting rid of the metal debris, the metal debris that is partly buried deeply in the building stones moves to the building stones shallow layer under the stirring effect, the shallow layer building stones is less to the pressure of metal debris, the metal debris is easier to upwards move under the effect of electromagnetic force and is laminated with the electro-magnet, the cleaning effect to the metal debris has been improved;
step four: in the step, after the first conveyor belt 1 conveys the primarily broken hole slag to the turning plate 2 and stops conveying, the turning plate 2 is not unfolded, only vibrates under the instruction of the control module, the rest actions are consistent with the step three, and the step five is executed after the execution is finished;
compared with the step III, the step IV reduces the expanding step of the turning plate 2, shortens the operation time, improves the operation efficiency, and because the weight of the stone is judged by the weight sensor and the weight threshold value which are arranged on the first conveyor belt 1, the step IV is executed when the judgment does not influence, so the thickness of the stone in the narrow rectangular groove which is not expanded in the adsorption direction is smaller, and the adsorption removal of metal sundries can be completed under the condition of not expanding;
the weight sensor is arranged on the first conveyor belt 1 to detect the weight of stones in the current batch, whether the probability and the degree of deeply burying the metal sundries affect the metal sundries or not is judged according to whether the weight exceeds a threshold value, when the judgment is affected, the step III with the prior effect of removing the metal sundries is executed, when the judgment is not affected, the step IV with the prior efficiency is executed, and the metal sundries removing effect and the removing efficiency are considered.
Step five: the second conveyor belt 12 conveys stones thereon to the upper edge of the inclined plate 4, the pusher 5 pushes stones on the second conveyor belt 12 onto the inclined plate 4, in this embodiment, the upper edge of the inclined plate 4 is arranged on one side of the second conveyor belt 12, the pusher 5 is arranged on one side of the second conveyor belt 12 far away from the inclined plate 4, the pusher 5 at least comprises a pushing plate 52 perpendicular to the upper surface of the second conveyor belt 12 and a telescopic rod 51 driving the pushing plate 52 to move along the direction perpendicular to the conveyor belt, the lower edge of the pushing plate 52 is 5mm higher than the upper surface of the second conveyor belt 12, when pushing by the pusher 5 is required, the telescopic rod 51 drives the pushing plate 52 to push stones on the second conveyor belt 12 onto the inclined plate 4, in this process, since gaps exist between the pushing plate 52 and the second conveyor belt 12, large blocks of stones with target particle sizes can be formed in the second breaking assembly through secondary breaking, small blocks of stones with target particle sizes cannot be formed in the first breaking assembly due to breaking randomness, and the small blocks with the target particle sizes cannot be formed in the first breaking assembly can not form additional blocks with the small blocks with the target particle sizes and the small blocks with the target particle sizes being formed in the second breaking assembly can not be broken into the second breaking assembly, and the second breaking blocks with the second breaking blocks and the waste blocks can not be prevented from entering the second breaking assembly has no additional broken blocks;
by arranging the pusher 5 and the inclined plate 4, the stone subjected to the first breaking can be primarily screened, so that the large stone which cannot form the target particle size is reduced to enter the second breaking assembly, and useless burden is caused on the second breaking assembly;
then, the third conveyer belt 6 transports the building stones to two broken subassemblies, and two broken subassemblies carry out the secondary crushing to the building stones, and one side of third conveyer belt 6 is lapped with the lower extreme of swash plate 4, and the one end of keeping away from swash plate 4 is connected with two broken subassemblies, and two broken subassemblies are broken to the building stones according to the target particle diameter of setting, accomplish rubble production.
In the above process, when the suspension electromagnet 31 adsorbs the metal sundries in the stone below, the self power determines the electromagnetic force to which the metal sundries are subjected, and the electromagnetic force to which the metal sundries are subjected is related to whether the metal sundries can overcome the upward movement of the stone pressure to the suspension electromagnet 31, so that the power of the suspension electromagnet 31 is related to the cleaning efficiency of the metal sundries, meanwhile, because the electromagnet needs to consume electric energy in the adsorption process of the metal sundries, when the power of the suspension electromagnet 31 exceeds the required power, the electric energy is wasted, and in order to consider the cleaning efficiency and the electric energy saving, the third step further comprises: in the embodiment, the control module adjusts the power of the suspension electromagnet 31 according to the weight data, and then calculates the running power of the suspension electromagnet 31 when the third step is executed according to the detection data of the weight sensor on the first conveyor belt 1 on the weight of the batch of stones in the second step, and starts with the calculated target power when the suspension electromagnet 31 is electrified and started;
similarly, the fourth and third steps are identical to the third step except whether the flipping panel 2 is unfolded or not, so the fourth step is performed to calculate the target power as the third step and instruct the suspension electromagnet 31 to be activated at the target power;
the control module instructs the running power of the suspension electromagnet 31 according to the weight data, so that the cleaning capacity of the suspension electromagnet 31 to metal impurities can be ensured to meet the requirement, the waste of electric energy is reduced, and the cleaning effect and the electric energy saving are both considered;
specifically, to accurately adjust the power of the suspension electromagnet 31, it is ensured that the running power of the suspension electromagnet 31 meets the cleaning requirement, and the third step further includes: the control module is used for controlling the weight data m according to the weight data m and the pre-input standard weight data m 0 Calculating a target power pd and a control module instructs the suspension electromagnet 31 to start with the power pd, wherein the user calculates m according to the actual production environment and working conditions 0 And pd 0 And let m be 0 And pd 0 The value of (2) is programmed into the control module while pd= [2 ] 0 -1)]×pd 0 And m is more than or equal to 0 and less than or equal to 5m 0 Wherein m is 0 And pd 0 When the weight data received by the control module exceeds 5m as a constant input in advance 0 At the time, take 5m 0 As the value of m, since f (m) =pd is a positive exponential function, when the value of m is continuously increased, the output value is increased, at this time, the power of the suspension electromagnet 31 with the output value as the operating power is increased, and when the weight of the stone is heavier, the volume is bigger, the condition that metal impurities are buried in a deeper position is easier to occur somewhere, and at this time, according to the function image, the value range of m is knownWhen the m value is larger, the output value is increased more, and at the moment, the suspension electromagnet 31 is increased by higher power to ensure that the deeply buried metal sundries are separated from the stone;
likewise, step four likewise includes the actions described above;
by making the control module dependent on [2 ] 0 -1)]×pd 0 The operation power of the suspension electromagnet 31 is calculated, so that the large volume of the stone is ensured, and when the degree and probability of deeply burying metal impurities are increased, the density of the suspension electromagnet 31 is improved at a higher change rate, and the cleaning effect of the metal impurities is further ensured.
In the above-mentioned absorbing process, no matter transport to the building stones or metal debris is by the suction from the building stones, can make the dust that the stone surface attached drift into the surrounding air, the electro-magnet needs to slide along slide rail 3 under the drive of sliding block simultaneously, when the dust in the air gets into slide rail 3, has probability to hinder the motion of sliding block, causes the hindrance to the production line operation, in order to avoid the emergence of this kind of condition, step three still includes: the hanging electromagnet 31 drives the aspirator 32 to move above the turning plate 2 and starts, the aspirator 32 attracts dust in broken stone on the upper surface of the turning plate 2, in the embodiment, at least a dust collecting structure is arranged in the aspirator 32, the aspirator 32 is arranged on one side of the hanging electromagnet 31 far away from the turning plate 2, and in the adsorbing and transporting processes, the aspirator 32 between the sliding rail 3 and the conveyor belt adsorbs the dust to prevent the dust from entering the sliding rail 3 in the process that the dust drifts out of the stone and drifts to the sliding rail 3;
meanwhile, when the power of the aspirator 32 exceeds the required power, unnecessary electric energy waste is caused, when the power of the aspirator 32 is lower than the required power, dust cannot be effectively intercepted, and part of the dust enters the sliding rail 3, therefore, in the third step, the control module adjusts the operation power of the aspirator 32 according to the weight data m, specifically, when m is increased, more stones to be treated are represented, more dust is possibly generated, at the moment, the control module increases the power of the aspirator 32, and conversely, when m is reduced, the control module decreases the power of the aspirator 32; by increasing or decreasing the power of the aspirator 32 with increasing or decreasing the value of m, both dust handling effects and power savings are achieved;
in addition, part of dust is attached to the lower surface of the suspension electromagnet 31 with probability in the moving process, when more dust is attached, the friction coefficient of the surface of the suspension electromagnet 31 is reduced, when the suspension electromagnet 31 slides to drive the adsorbed metal sundries to translate, the friction force provided by the suspension electromagnet 31 to the metal sundries can not overcome the inertia of the metal sundries, the metal sundries slide to one side under the action of the inertia, and the metal sundries slide out of the electromagnet with probability, so as to avoid the situation, when the electromagnet moves to the outer side of the turning plate 2 along the track, the suction machine 32 is adjusted to attract the dust on the surface of the electromagnet, in the embodiment, the head end of the suction machine 32 is provided with a hose with an adjustable air inlet orientation, the hose can be directed to the lower side or the suspension electromagnet 31 under the instruction of the control module, when the hose is directed to the suspension electromagnet 31, the suction machine 32 attracts the dust attached to the suspension electromagnet 31, the dust quantity attached to the surface is reduced, and the situation that the metal sundries fall off and fall back into the stone is avoided due to the fact that the friction coefficient of the surface of the suspension electromagnet 31 is too low is avoided;
similarly, the fourth step also includes the above steps.
In order to accurately regulate and control the power of the aspirator 32, the third step further includes: the control module is used for controlling the weight data m and the pre-input standard weight m 0 And aspirator 32 standard power px 0 Calculate the power px of the aspirator 32, and instruct the aspirator 32 to operate at px power, where px= [ lg (1.8 m/m) 0 +1)]×px 0 ，0≤m≤5m 0 When m becomes larger, which means that the stone to be treated is larger, the amount of dust possibly generated is larger, and the power of the aspirator 32 needs to be increased, at this time [ lg (1.8 m/m) 0 +1)]×px 0 When m becomes smaller, the output becomes smaller, and the power of the aspirator 32 is increased or decreased accordingly with the increase or decrease of m, and at the same time, when the dust density in the air is lower, the additional dust will significantly increase the dust density in the air, so that the aspirator 32 power needs to be increased relatively faster with the increase of the potential dust generation amount, and when the dust density in the air is higher, approaching the upper limit, the additional dust will not be increasedThe dust density in the air is significantly increased, so that only the power of the aspirator 32 is required to be increased appropriately with the potential dust generation amount, and the function px= [ lg (1.8 m/m) 0 +1)]×px 0 The m value is 0-2.5 m 0 In this case, the rate of increase of the output value px as the power increases with the value m is 2.5m compared with the value m 0 ~5m 0 The device is higher, so that the relatively faster lifting of the dust power absorbed when the dust density is lower is met, and the relatively slower lifting of the dust power absorbed when the dust density is higher is also met;
similarly, the fourth step also includes the above steps.
By letting the control module operate according to [ lg (1.8 m/m) 0 +1)]×px 0 The output result of the (2) is used as the operation power of the aspirator 32, so that the accurate regulation and control of the power of the aspirator 32 according to the weight data are completed, meanwhile, when the dust density is low, the power of the aspirator 32 can be quickly increased along with the potential dust generation amount, and when the dust density is high, the power of the aspirator 32 can be slowly increased along with the potential dust generation amount, so that the regulation of the power increasing rate of the aspirator 32 according to the dust density is completed.
In the above steps, the suspension electromagnet 31 may not be able to completely separate the metal scraps in the stone, and therefore, the fifth step further includes: in the process that stones move to the third conveyor belt 6 along the sloping plate 4, the inclined plane electromagnet on the surface of the sloping plate 4 adsorbs metal impurities in the stones, in the embodiment, the upper surface of the sloping plate 4 is provided with a flaky electromagnet, the electromagnet is switched on and off under the instruction of the control module, when the pusher 5 executes pushing action, the control module instructs the sloping plate 4 to switch on the electromagnet, when stones move on the sloping plate 4, piled stones roll on the sloping plate 4, stones are turned over in the rolling process, and the metal impurities are stripped out of the stones in the turning process and adsorbed on the electromagnet of the sloping plate 4 under the action of the electromagnet of the sloping plate 4;
meanwhile, when the stone quality is large, metal impurities in the stone are deeply buried with probability, and in the process of falling and turning the surface of the inclined plate 4, the metal impurities can not be adsorbed with probability, so that the control module increases or decreases the power of the inclined plane electromagnet according to the increase or decrease of the weight data m;
through the turning action of building stones in the motion process on swash plate 4, the cooperation inclined plane electro-magnet has further promoted the clearance effect to metal impurity to the adsorption of metal impurity.
Specifically, the fifth step further comprises: the control module inputs the reference power pa of the inclined plane electromagnet according to the weight data m and the pre-input reference power pa of the inclined plane electromagnet 0 The command ramp electromagnet operates at a power pa, where pa= [ 2++0.6m ]]×pa 0 ，0≤m≤5m 0 When the value of m increases, [2 ] (0.6 m)]×pa 0 The output value of the suspension electromagnet 31 is increased by higher power to ensure that the deeply buried metal impurities are separated from the stone material in the range of m value, as the m value is larger, the increase of the output value is larger;
by making the control module according to pa= [2 ] (0.6 m)]×pa 0 The power of the inclined plane electromagnet is adjusted to accurately adjust the power of the inclined plane electromagnet according to the increase and decrease of the weight data, and meanwhile, when the weight of the stone is large, the increasing rate of the inclined plane electromagnet along with the weight data is improved.
In the above process, although the metal impurities therein are adsorbed onto the inclined plate 4, the stone will act on the metal impurities on the inclined plate 4 with a downward force in the falling process of the stone along the inclined plate 4, so that the metal impurities can fall onto the third conveyor belt 6 with probability, the cleaning effect is counteracted, and the number of stones falling on the inclined surface at the same time needs to be controlled once, therefore, the fourth step further comprises the following steps: the control module judges whether the weight data exceeds a threshold value, if not, the step five is executed, otherwise, the step six is executed, when the weight data exceeds the threshold value, the volume of the stone is larger, the number of the stone is more, the probability that the stone bumps down the metal impurities on the inclined plate 4 is larger, and the step six includes: the pushing assembly equally divides the pushing action of the stone into b times, and in the embodiment, the control module is electrically connected with the telescopic rod 51 and communicated withBy equally dividing the path of the telescopic rod 51 into b segments, and each of the b segment paths is separately executed, there is a time interval in which execution between the adjacent two segment paths, specifically, where b is equal to m/m 0 Values rounded up, e.g. when m=2.8m 0 When the mass is large, the quantity of stones which fall on the inclined plane simultaneously needs to be reduced, at the moment, the control module equally divides the pushing action of the telescopic rod 51 into 3 sections, when the first section is executed, the telescopic rod 51 moves 1/3 of the path to drive the pushing plate 52 to partially squeeze the space on the second conveyor belt 12, part of stones on the second conveyor belt 12 fall along the inclined plate 4, then the second section is executed, the telescopic rod 51 continues to move 1/3 of the path to drive the pushing plate 52 to partially squeeze the other part of the space, the other part of stones are pushed to fall along the inclined plate 4, and finally the third section is executed to push all stones to fall along the inclined plate 4;
by enabling the pusher 5 to push down stones according to the stone mass section, the number of stones falling along the sloping plate 4 for a single time is reduced, the probability that the stones drive the metal impurities on the sloping plate 4 to fall back into the stones again is reduced, and the cleaning effect is further improved.
The working principle and the using flow of the invention are as follows:
the first conveyor belt 1 conveys the primarily broken hole slag to the turning plate 2 and stops conveying, the turning plate 2 is unfolded and vibrates the hole slag on the turning plate 2, the hanging electromagnet 31 above the turning plate 2 moves to the upper side of the turning plate 2 along the track and starts to adsorb metal impurities in stones, when the judgment result is negative, the turning plate 2 is not unfolded, and the rest steps are consistent with the judgment result;
then the second conveyor belt 12 conveys the stones thereon to the upper edge of the sloping plate 4, the pusher 5 pushes the stones on the second conveyor belt 12 onto the sloping plate 4, metal impurities in the stones passing through the sloping plate 4 are adsorbed onto the sloping plate 4, the stones move to the secondary crushing assembly through the third conveyor belt 6 below the sloping plate 4, and the secondary crushing assembly crushes the stones for the second time.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (9)
1. A process for automatically removing metal impurities in a broken stone production line is characterized in that: the method comprises the following steps:
step one: the hole slag stones are primarily crushed by the head crushing assembly and conveyed to the first conveyor belt;
step two: the weight sensor on the first conveyor belt detects the weight of stones on the first conveyor belt and uploads weight data to the control module, the control module judges whether the weight data exceeds a threshold value, if yes, the third step is executed, and if not, the fourth step is executed;
step three: the first conveyor belt conveys the primarily broken hole slag to the turning plate and stops conveying, the turning plate is unfolded and vibrates the hole slag on the turning plate, a hanging electromagnet above the turning plate moves to the upper side of the turning plate along a track and starts to adsorb metal impurities in stones, the hanging electromagnet moves to the outer side of the turning plate along the track, the hanging electromagnet is powered off, the turning plate stops vibrating and is retracted, the first conveyor belt starts to drive the stones on the following stones to push the turning plate to move to the second conveyor belt, and then step five is executed;
step four: the first conveyor belt conveys the primarily crushed hole slag to the turning plate and stops conveying, a hanging electromagnet above the turning plate moves to the position above the turning plate along a track and starts to adsorb metal impurities in stones, the hanging electromagnet moves to the outer side of the turning plate along the track, the hanging electromagnet is powered off, the first conveyor belt starts to drive the stones on the following stone to push the stones on the turning plate to move to the second conveyor belt, and then step five is executed;
step five: the second conveyer belt conveys the building stones on it to the swash plate upper edge, and the pusher is with building stones propelling movement on the second conveyer belt to the swash plate on, building stones follow the swash plate motion to the third conveyer belt, the third conveyer belt conveys building stones to two broken subassemblies, two broken subassemblies carry out the secondary crushing to building stones.
2. The process for automatically removing metal impurities in a crushed stone production line according to claim 1, wherein the process comprises the following steps of: the third step further comprises: the control module adjusts the power of the suspension electromagnet according to the weight data, and the suspension electromagnet above the turning plate moves to the position above the turning plate along the track and is started to adsorb metal impurities in the stone with the target power; the fourth step further comprises: the control module adjusts the power of the hanging electromagnet according to the weight data, and the hanging electromagnet above the turning plate moves to the position above the turning plate along the track and is started to adsorb metal impurities in stones with target power.
3. The process for automatically removing metal impurities in a crushed stone production line according to claim 2, wherein the process comprises the following steps of: the third step further comprises: the control module inputs the standard weight m in advance according to the weight data m 0 And a pre-input standard power pd of the suspension electromagnet 0 Calculating target power pd, and enabling the control module to instruct the suspension electromagnet to start with the power pd; the fourth step further comprises: the control module inputs the standard weight m in advance according to the weight data m 0 And a pre-input standard power pd of the suspension electromagnet 0 Calculating target power pd, and enabling the control module to instruct the suspension electromagnet to start with the power pd;
wherein pd= [2 ] (m-m 0 -1)]×pd 0 ，0≤m≤5m 0 。
4. The process for automatically removing metal impurities in a crushed stone production line according to claim 2, wherein the process comprises the following steps of: the third step and the fourth step also comprise the following steps: the suspended electromagnet drives the air suction machine to move to the upper part of the turning plate and is started, the air suction machine attracts dust in broken stone on the upper surface of the turning plate, the control module adjusts the operation power of the air suction machine according to the weight data m, the electromagnet drives the air suction machine to move to the outer side of the turning plate along the track, and the direction of adjustment of the air suction machine attracts dust on the surface of the electromagnet.
5. The process for automatically removing metal impurities in a crushed stone production line according to claim 4, wherein the process comprises the following steps of: the third step and the fourth step also comprise the following steps: the control module inputs the standard weight m in advance according to the weight data m 0 And standard power px of aspirator 0 Calculate the power px of the aspirator and instruct the aspirator to operate at px power, where px= [ lg (1.8 m/m) 0 +1)]×px 0 ，0≤m≤5m 0 。
6. The process for automatically removing metal impurities in a crushed stone production line according to claim 1, wherein the process comprises the following steps of: the fifth step further comprises: and in the process that the stone moves to the third conveyor belt along the sloping plate, the inclined plane electromagnet on the surface of the sloping plate adsorbs metal impurities in the stone.
7. The process for automatically removing metal impurities in a crushed stone production line according to claim 1, wherein the process comprises the following steps of: the fifth step further comprises: and the control module adjusts the power of the inclined plane electromagnet according to the weight data m.
8. The process for automatically removing metal impurities in a crushed stone production line according to claim 7, wherein the process comprises the following steps of: the fifth step further comprises: the control module is used for controlling the power pa according to the weight data m and the pre-input inclined plane electromagnet reference power pa 0 The command ramp electromagnet operates at a power pa, where pa= [ 2++0.6m ]]×pa 0 ，0≤m≤5m 0 。
9. The process for automatically removing metal impurities in a crushed stone production line according to claim 1, wherein the process comprises the following steps of: the second step further comprises the following steps: the control module determines whether the weight data exceeds a thresholdIf the judgment result is negative, executing the fifth step after the third step, otherwise executing the sixth step after the fourth step; the method further comprises the step six of: the pushing component equally divides the pushing action of the stone into b times, wherein b is equal to m/m 0 A rounded up value.
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