CN217707458U

CN217707458U - Ore debris clearance system

Info

Publication number: CN217707458U
Application number: CN202221882368.1U
Authority: CN
Inventors: 战立岗; 李和丕; 原磊; 李浩鹏; 张耀祖; 周波; 刘汶瀚; 刘潇
Original assignee: Xincheng Gold Mining Shandong Gold Mining Co ltd
Current assignee: Xincheng Gold Mining Shandong Gold Mining Co ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-11-01
Anticipated expiration: 2032-07-21

Abstract

The utility model discloses an ore debris clearance system, including first conveyer belt, row's silo, double-deck shale shaker and second conveyer belt, still including setting up the first electromagnetism de-ironing separator in first conveyer belt top and setting up the second electromagnetism de-ironing separator in second conveyer belt top. The roller at one end of the first conveyor belt close to the discharge chute is a permanent magnet roller, an iron collection chute is arranged below the permanent magnet roller, and an iron discharge transfer belt is arranged below the discharge end of the iron collection chute; a metal detector is also arranged on the second conveyor belt; the below of the unloading end of second conveyer belt is equipped with abandons the iron notch, abandons the side of iron notch and is provided with side by side and connects the silo, abandons the iron notch and connect still to be equipped with the baffle of installing on tilting mechanism between the silo. The utility model discloses not only improved the effect of getting rid of magnetic metal debris, realized getting rid of to non-magnetic debris moreover, solved metal debris and damaged equipment such as breaker and caused the problem of production interrupt even.

Description

Ore debris clearance system

Technical Field

The utility model relates to a system's device of debris in clearance ore.

Background

The current crushing process of the new-city gold ore dressing workshop is as follows: the main shaft lifts the ore to a ground surface coarse bin, and the ore is fed into a No. 1 belt conveyor (a first conveyor belt) by an XZG type electric vibration ore feeder and then conveyed to a 2YAH2148 double-layer vibration screen of a screening plant. Feeding the product on the upper-layer sieve into a No. 2 belt conveyor (a second conveyor belt) into a Meizhuo HP300 cone crusher for intermediate crushing; qualified products with the size of 6-14mm in the undersize products of the double-layer vibrating screen are conveyed to a No. 6 belt conveyor and then are conveyed to a fine ore bin through a No. 7 belt; products with the diameter less than 6mm in undersize products of the double-layer vibrating screen enter a phi 1500 single-spiral classifier. The crushed products (granularity is less than 80 mm) are conveyed to a cone crusher by a No. 2 belt conveyor, and then are finally distributed to various fine material bins through a No. 4 belt conveyor, a YA2160 single-layer vibrating screen, a CH660 cone crusher, a No. 3 belt conveyor and No. 6, no. 7, no. 8 and No. 9 belt conveyors.

The current workflow has the following problems: the iron ware sundries such as anchor rods, drill bits, lining plates and the like are inevitably mixed in the ore removed from the mine, and although the sundries are cleaned in production links such as stopes, stope ore pass, belt tracks and the like, a large amount of sundries still enter the ore dressing production flow. 185900kg of impurities such as waste anchor rods, ironware and the like are picked out in a whole-year beneficiation workshop in 2019. After underground management and control are enhanced, in 2020 year all the year, impurities 101880kg such as waste anchor rods and ironware are picked out, and a crushing system picks 100 residual blocks of magnetic and non-magnetic parts such as manganese steel parts, guide rails and lining plates. After the iron-containing device sundry ore enters the crusher such as the jaw crusher, the cone crusher and the like, fatal damage can be caused to the crusher, the crusher lining plate can be abraded at an accelerated speed through the iron piece with a small size, and the service life of crushing equipment is greatly influenced. And the sundries with larger sizes can cause iron passing, even cause the crusher to be blocked in serious conditions, seriously damage the rotating parts such as a main shaft and a copper sleeve of the equipment and the transmission parts such as gears, and cause the interruption of production.

To the problem that metal debris influence production, the solution of prior art sets up the electromagnetism de-ironing separator at positions such as first conveyer belt and second conveyer belt, gets rid of the magnetic metal debris that mix with in the ore. This approach still has the following problems: firstly, the electromagnetic iron remover is difficult to remove all magnetic metal impurities, and the effect is not ideal; and the non-magnetic impurities such as the manganese steel and the like which are mixed cannot be removed, so that the production process is still influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides an ore debris clearance system, its purpose: (1) improving the removing effect of the magnetic metal impurities; and (2) removing the non-magnetic impurities.

The utility model discloses technical scheme as follows:

an ore impurity cleaning system comprises a first conveyor belt, a discharge groove, a double-layer vibrating screen and a second conveyor belt, wherein the discharging end of the first conveyor belt is positioned above the discharge groove, the discharging end of the discharge groove is positioned above the feeding end of the double-layer vibrating screen, the discharging end of a product on a screen of the double-layer vibrating screen is positioned above the feeding end of the second conveyor belt, the ore impurity cleaning system further comprises a first electromagnetic iron remover arranged above the first conveyor belt and a second electromagnetic iron remover arranged above the second conveyor belt, a roller at one end of the first conveyor belt close to the discharge groove is a permanent magnet roller, an iron collection chute is arranged below the permanent magnet roller, and an iron discharge transfer belt is arranged below the discharging end of the iron collection chute;

the second conveyor belt is also provided with a metal detector, and the second electromagnetic iron remover and the metal detector are sequentially arranged along the conveying direction of the second conveyor belt;

the lower side of the unloading end of second conveyer belt is equipped with abandons the indisputable mouth, abandons the side of indisputable mouth and is provided with side by side and connects the silo, abandoning the indisputable mouth and connect still to be equipped with the baffle of installing on tilting mechanism between the silo.

As a further improvement of the ore impurity cleaning system: the turnover mechanism comprises a rack, a motor, a first rotating wheel, a connecting rod and a second rotating wheel; the motor is fixedly installed on the rack, the first rotating wheel and the second rotating wheel are installed on the rack in a rotating connection mode, the motor is used for driving the first rotating wheel to rotate, one end of the connecting rod is in rotating connection with the first rotating wheel, the other end of the connecting rod is in rotating connection with the second rotating wheel, and the baffle is fixedly installed on the second rotating wheel.

As a further improvement of the ore impurity cleaning system: the baffle is a grid plate.

As a further improvement of the ore impurity cleaning system: and a suspension trolley is arranged above the first conveyor belt, and the first electromagnetic iron remover is arranged on the suspension trolley.

As a further improvement of the ore impurity cleaning system: the iron collecting chute is provided with a material receiving side plate which is arranged obliquely and is positioned right below the permanent magnet drum, the material receiving side plate is provided with sieve pores, and the sieve pores are also positioned above the feeding end of the double-layer vibrating screen.

As a further improvement of the ore impurity cleaning system: the lateral wall top that is close to permanent magnetism cylinder one side on the bin outlet still installs flash detection mechanism, flash detection mechanism is including installing support on this lateral wall, installing the board that turns over on the support and installing the sensor that is used for detecting the state of turning over the board on the support through rotating the connected mode.

Compared with the prior art, the utility model discloses following beneficial effect has: (1) The system changes a roller at the discharging end of a first conveying belt into a permanent magnet roller on the basis of the original electromagnetic iron remover, and discharges magnetic metal impurities by using an iron collecting chute and an iron discharging transfer belt to further screen the magnetic metal impurities; (2) The system is provided with the metal detector on the second conveyor belt to detect the non-magnetic metal impurities, and simultaneously, the turnover mechanism and the baffle plate are utilized to independently convey the ore part containing the non-magnetic metal impurities to the material receiving groove, so that the non-magnetic metal impurities are removed.

Drawings

FIG. 1 is a schematic diagram of the present system;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is an enlarged view of a portion B of FIG. 1;

fig. 4 is a schematic structural diagram of the turnover mechanism, the baffle plate, the receiving groove and the iron discarding port.

Detailed Description

The technical scheme of the utility model is explained in detail in the following with the attached drawings:

referring to fig. 1, the ore impurity cleaning system comprises a first conveyor belt 1, a discharge chute 6, a double-layer vibrating screen 8 and a second conveyor belt 9.

A first electromagnetic iron remover 3 is arranged above the first conveyor belt 1 (i.e. the No. 1 belt). The first electromagnetic iron remover 3 in the embodiment is an RCDB-10T2 type super-strong electromagnetic iron remover with the magnetic field intensity being more than or equal to 120mT, and can remove 80% of anchor rods and large magnetic iron devices in ores.

Preferably, a hanging trolley 2 is arranged above the first conveyor belt 1, the first electromagnetic iron remover 3 is mounted on the hanging trolley 2, the position of the first electromagnetic iron remover 3 can be moved as required, and after the metal impurities are sucked, the first electromagnetic iron remover can be rapidly moved to other stations to release the impurities and then return to the position above the first conveyor belt 1 to continue sucking.

The blanking end of the first conveyor belt 1 is positioned above the discharge groove 6, and the blanking end of the discharge groove 6 is positioned above the feeding end of the double-layer vibrating screen 8.

Further, a roller at one end of the first conveyor belt 1 close to the discharge chute 6 is a permanent magnet roller 1-1. The model of the permanent magnet roller 1-1 is CTZ-63/100, and the magnetic field intensity is more than or equal to 4000GS. An iron collecting chute 4 is arranged below the permanent magnet roller 1-1, and an iron discharging transfer belt 7 is arranged below the discharge end of the iron collecting chute 4.

Further, as shown in fig. 2, the iron collecting chute 4 is provided with a material receiving side plate 4-1 which is obliquely arranged under the permanent magnet drum 1-1, the material receiving side plate 4-1 is provided with a plurality of sieve holes with the diameter of 10mm, and the sieve holes are also arranged above the feeding end of the double-layer vibrating screen 8.

As shown in fig. 1 and 2, a flash detection mechanism 5 is further installed at the top of the side wall of the discharge chute 6 close to one side of the permanent magnetic drum 1-1, and the flash detection mechanism 5 comprises a bracket 5-1 installed on the side wall, a turning plate 5-2 installed on the bracket 5-1 in a rotating connection manner, and a sensor installed on the bracket 5-1 and used for detecting the state of the turning plate 5-2.

As shown in fig. 1, the undersize end of the double deck vibrating screen 8 is positioned above the infeed end of a second conveyor belt 9 (i.e., a # 2 belt). A second electromagnetic iron remover 10 with the model of PDC-8T2 is arranged above the second conveyor belt 9.

And a metal detector 11 with the model of GH-IV-10 is also arranged on the second conveyor belt 9. The metal detector 11 is an existing product, and the working principle thereof is as follows: the high-frequency variable magnetic field is generated by an oscillator connected with the middle transmitting coil, and induced voltages of the receiving coils at two sides are mutually counteracted before the magnetic field is not interfered in an idle state so as to reach a balanced state. Once the metal impurities enter the magnetic field area, the magnetic field is disturbed, the balance is broken, and the induction voltages of the two receiving coils which are not counteracted are amplified to generate an alarm signal.

The second electromagnetic iron remover 10 and the metal detector 11 are arranged in this order along the conveying direction of the second conveyor belt 9.

A scrap iron opening 13 is arranged below the discharging end of the second conveyor belt 9, a receiving trough 12 is arranged beside the scrap iron opening 13 in parallel, and a baffle 14 arranged on the turnover mechanism is arranged between the scrap iron opening 13 and the receiving trough 12.

Specifically, as shown in fig. 3 and 4, the turnover mechanism includes a frame, a motor 15, a first rotating wheel 16, a connecting rod 17, and a second rotating wheel 18. The motor 15 is fixedly mounted on the frame, and an output shaft of the motor is connected with the first rotating wheel 16 through a speed reducer and used for driving the first rotating wheel 16 to rotate. The first rotating wheel 16 and the second rotating wheel 18 are installed on the frame in a rotating connection mode, and one end of the connecting rod 17 is rotatably connected with the first rotating wheel 16, and the other end of the connecting rod is rotatably connected with the second rotating wheel 18. The baffle 14 is fixedly mounted on the second runner 18. Preferably, the baffle 14 is a grid. When the first rotating wheel 16 rotates, the second rotating wheel 18 and the baffle 14 are driven to rotate through the connecting rod 17.

The working process of the system is as follows:

materials (including ores, metal impurities and part of cleaning water on the belt) on the first conveyor belt 1 pass below the first electromagnetic iron remover 3, wherein most of the magnetic metal impurities are removed. Then the material reaches the blanking end of the first conveyor belt 1, most of the residual magnetic metal impurities in the material and part of the mixed mineral powder and water reach the upper part of the iron collecting chute 4 under the adsorption of the permanent magnet roller 1-1 and then fall into the iron collecting chute 4, the mineral powder and water in the falling material fall onto the double-layer vibrating screen 8 through screen holes, the magnetic metal impurities and a small amount of mineral powder and water discharged from the iron collecting chute 4 are output along with the iron discharging transfer belt 7 and are further processed, and the processed residual mineral powder and water can return to the double-layer vibrating screen 8 through a single pumping pipeline and can be reserved for other purposes. Meanwhile, most of ores, water and nonmagnetic impurities on the first conveyor belt 1 directly fall into the discharge chute 6 and then enter the double-layer vibrating screen 8. When the ore in the discharge groove 6 is excessive, the inner end (the end close to the inner cavity of the discharge groove 6) of the turning plate 5-2 of the flash detection mechanism 5 can be jacked up by the ore and is changed from the original falling state to the uplifting state, the sensor sends out an alarm signal after detecting the change of the turning plate 5-2, at the moment, the operation of the first conveyor belt 1 can be stopped, and the conveying is continued after the material level in the discharge groove 6 is lowered.

The materials entering the double-layer vibrating screen 8 are screened, qualified products enter the stock bin or the grader from the bottom, and other materials on the screen need to further reach the crusher through the second conveying belt 9 for crushing. Specifically, when the material on the second conveyor belt 9 passes below the second electromagnetic iron remover 10, a small amount of the finally remaining magnetic metal impurities in the material are sucked, and the remaining ore and non-magnetic impurities (with a small content) continue to pass through the metal detector 11. When the metal detector 11 detects a metal object, a signal is sent to an operator or a control system, the operator or the control system controls the turnover mechanism to act according to the signal and the speed of the second transmission belt, when the ore containing nonmagnetic impurities reaches the blanking end, the baffle plate 14 is just laid on the iron notch 13, so that the ore containing nonmagnetic impurities falls on the baffle plate 14, then the turnover mechanism acts in the reverse direction immediately, the baffle plate 14 is rotated to be in a vertical state, the material on the baffle plate 14 falls into the material receiving groove 12, and the operator is waited to further separate the nonmagnetic impurities. When the metal detector 11 does not detect the metal object (mostly), the baffle 14 is always in a vertical state, and the ore on the second conveyor belt 9 directly falls into the iron discarding port 13 and then enters the crusher.

After the system is implemented, the phenomenon that ironware enters a crushing cavity of the cone crusher is effectively avoided, and parts such as an eccentric sleeve of the cone crusher, a lower frame body bushing, an eccentric sleeve copper sleeve, a thrust bearing, a main shaft wear-resisting disc and a piston wear-resisting plate are protected from being damaged, so that the service life is prolonged, the maintenance cost and time are saved, and the stability and the reliability of a production system are improved.

Claims

1. The utility model provides an ore debris clearance system, includes first conveyer belt (1), blow off groove (6), double-deck shale shaker (8) and second conveyer belt (9), the unloading end of first conveyer belt (1) is located the top of blow off groove (6), and the unloading end of blow off groove (6) is located the top of double-deck shale shaker (8) material loading end, and the top of the material loading end of product unloading end position in second conveyer belt (9) is gone up to the sieve of double-deck shale shaker (8), ore debris clearance system is still including setting up first electromagnetism de-ironing separator (3) and second electromagnetism de-ironing separator (10) of setting in second conveyer belt (9) top in first conveyer belt (1) top, its characterized in that: the drum at one end, close to the discharge chute (6), of the first conveyor belt (1) is a permanent magnet drum (1-1), an iron collection chute (4) is arranged below the permanent magnet drum (1-1), and an iron discharge transfer belt (7) is arranged below the discharge end of the iron collection chute (4);

a metal detector (11) is further arranged on the second conveyor belt (9), and the second electromagnetic iron remover (10) and the metal detector (11) are sequentially arranged along the conveying direction of the second conveyor belt (9);

the device is characterized in that a waste iron notch (13) is arranged below the discharging end of the second conveyor belt (9), a material receiving groove (12) is arranged beside the waste iron notch (13) in parallel, and a baffle (14) arranged on the turnover mechanism is arranged between the waste iron notch (13) and the material receiving groove (12).

2. An ore debris cleaning system according to claim 1, characterized in that: the turnover mechanism comprises a frame, a motor (15), a first rotating wheel (16), a connecting rod (17) and a second rotating wheel (18); motor (15) fixed mounting is in the frame, and first runner (16) and second runner (18) are installed in the frame through rotating the connected mode, and motor (15) are used for driving first runner (16) to rotate, connecting rod (17) one end is rotated with first runner (16) and is connected, the other end rotates with second runner (18) and is connected, baffle (14) fixed mounting is on second runner (18).

3. An ore debris cleaning system according to claim 1, characterized in that: the baffle (14) is a grid plate.

4. An ore debris cleaning system according to claim 1, characterized in that: a suspension trolley (2) is arranged above the first conveyor belt (1), and the first electromagnetic iron remover (3) is installed on the suspension trolley (2).

5. An ore debris cleaning system according to claim 1, characterized in that: the iron collecting chute (4) is provided with a material receiving side plate (4-1) which is obliquely arranged under the permanent magnet drum (1-1), the material receiving side plate (4-1) is provided with sieve pores, and the sieve pores are also positioned above the material feeding end of the double-layer vibrating screen (8).

6. An ore debris cleaning system according to any one of claims 1 to 5, wherein: the overflow detection mechanism (5) is further installed at the top of the side wall, close to one side of the permanent magnet roller (1-1), on the discharge groove (6), and the overflow detection mechanism (5) comprises a support (5-1) installed on the side wall, a turning plate (5-2) installed on the support (5-1) in a rotating connection mode and a sensor installed on the support (5-1) and used for detecting the state of the turning plate (5-2).