Iron material magnetic separation device and waste oil barrel treatment assembly line

Abstract

The utility model discloses an iron material magnetic separation device and a waste oil barrel processing assembly line, iron material is conveyed from right to left, the iron material magnetic separation device comprises at least two magnetic separation rollers which are sequentially arranged from right to left and from top to bottom, each magnetic separation roller comprises a core shaft, a magnetic block and a cylinder body, the magnetic block is fixedly installed on the core shaft, and a magnetic separation motor drives the cylinder body to roll around the core shaft. The cylinder is provided with a slag separation area, one magnetic pole end of the magnetic block corresponds to the inner side of the slag separation area, the slag separation area dynamically and correspondingly is an area which starts from the uppermost end of the cylinder, crosses the rightmost end of the cylinder and continues to extend downwards, and an iron material bearing point of the slag separation area deviates from the upper edge and the lower edge of the slag separation area. Compared with the prior art, iron materials are sprayed to the slag separation area in a landing mode, the slag separation area deviates from the high points of the magnetic separation rollers, the independent iron materials and slag can be directly separated according to whether the iron materials and the slag are subjected to magnetic force or not conveniently, the iron materials without slag are turned and shaken conveniently, the slag is shaken off, the slag removal quality of the magnetic separation rollers is good, and the slag removal efficiency is improved through two-time roller magnetic separation. And the slag content of the iron material is effectively reduced.

Description

Technical Field

[0001] The utility model relates to waste oil barrel processing equipment, in particular to an iron material magnetic separation device and a waste oil barrel processing production line. Background Art

[0002] Waste oil barrels are waste iron packaging barrels with paint / ink blocks on the outer wall and / or inside after use. The waste oil barrels are broken into slag iron materials (iron flakes) by a shredder, and the slag iron materials are sieved and then pelletized into egg-sized iron balls.

[0003] In the existing drum magnetic separation screening, only a single magnetic separation drum is used, and the iron material screening residue is not ideal. Utility Model Content

[0004] The utility model aims to solve at least one of the above-mentioned technical problems and provide an iron material magnetic separation device to solve the technical problem of unsatisfactory screening of the existing single magnetic separation drum.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An iron material magnetic separation device, wherein the iron material transmission direction is from right to left, and the iron material magnetic separation device comprises at least two magnetic separation rollers, wherein the at least two magnetic separation rollers are arranged in sequence from right to left and from top to bottom:

[0007] The magnetic separation drum comprises a core shaft, a magnetic block, and a cylinder body. The magnetic block is fixedly mounted on the core shaft. The magnetic separation motor is suitable for driving the cylinder body to roll around the core shaft so that the rolling direction of the cylinder body can be tangentially from right to left along the upper edge. The cylinder body is provided with a slag separation zone. One of the magnetic poles of the magnetic block corresponds to the inner side of the slag separation zone. The slag separation zone is suitable for dynamically corresponding to the area starting from the uppermost end of the cylinder body and continuing to extend downward after passing the rightmost end thereof. The iron material receiving point of the slag separation zone deviates from the upper edge and the lower edge of the slag separation zone.

[0008] The slag separation zone of the highest magnetic separation drum is suitable for receiving external iron materials, and the lower magnetic separation drum is suitable for receiving iron materials output by the higher magnetic separation drum.

[0009] Compared with the prior art, the beneficial effects of the present application include: iron materials are sprinkled into the slag separation zone by landing, the slag separation zone is deviated from the high point of the magnetic separation drum, so that the independent iron materials and slag can be directly separated based on whether they are affected by magnetic force, and the iron materials that have not been separated from the slag can be rolled and shaken to shake off the slag. The slag removal quality of each magnetic separation drum is good, and the slag content of the iron materials can be effectively reduced through two drum magnetic separations.

[0010] As an improvement of the above technical solution, the cylinder body includes a cylinder portion and a removable end cover, one end of the cylinder portion is an end cover of its own, and the other end is an open end, the open end is connected to the removable end cover, the own end cover and the removable end cover are both rotatably connected to the core shaft, and the open end can disassemble and assemble the magnetic block on the core shaft.

[0011] As an improvement of the above technical solution, the inner wall of the cylinder and / or the outer peripheral wall of the magnetic block are provided with a recess, and the cylinder and the magnetic block define the recess as an air blast chamber, and the air blast chamber is suitable for connecting an air source through the air passages of the magnetic block and the core shaft in sequence, and a plurality of groups of jet holes are arranged circumferentially on the peripheral wall of the cylinder, and the air blast chamber is suitable for spraying the iron material in the slag separation zone through the jet holes.

[0012] As an improvement of the above technical solution, it also includes a slag collecting bucket, and the at least two magnetic separation rollers are both located above the slag collecting bucket and are both suitable for dropping slag into the slag collecting bucket.

[0013] As an improvement of the above technical solution, the two magnetic separation rollers are suitable for covering the upper port of the slag collecting bucket, and a dust suction channel is provided at the upper end of the side wall of the slag collecting bucket. One end of the dust suction channel passes through the inner side of the slag collecting bucket, and the other end is suitable for connecting to a dust collector.

[0014] As an improvement of the above technical solution, it also includes an axle seat and a seat cover, both ends of the core shaft are axially symmetrically provided with two vertical slots, the axle seat is suitable for the end of the core shaft to lie, the axle seat is provided with a first block suitable for snap-connecting to the vertical slot, the seat cover is provided with a second block suitable for snap-connecting to the vertical slot, the seat cover is suitable for covering the axle seat and jointly clamping the end of the core shaft, and the vertical slot is filled by the corresponding first block and second block.

[0015] As an improvement of the above technical solution, it also includes an inclined feeding belt, which is suitable for throwing iron materials obliquely upward to the iron material landing point of the highest magnetic separation drum.

[0016] As an improvement of the above technical solution, it also includes a scraper vertically arranged above the feeding belt, and the scraper and the feeding belt form a material passing distance d1, and d1 is greater than the height of a single iron material and less than the height of two iron materials.

[0017] A waste oil barrel processing line, wherein a shredder, an iron material magnetic separation device, a first granulator, and another iron material magnetic separation device are sequentially arranged along the iron material transmission direction;

[0018] The shredder is suitable for shredding waste oil barrels into primary iron materials, and the primary iron materials output by the shredder are suitable for being transported to the corresponding highest magnetic separation roller of the iron material magnetic separation device. The first granulator is suitable for repeatedly hammering the primary iron materials into iron balls, and the primary iron balls output by the first granulator are suitable for being transported to the corresponding highest magnetic separation roller of the iron material magnetic separation device.

[0019] As an improvement of the above technical solution, it also includes a second granulator, and the primary iron lumps output by the first granulator are screened by the corresponding iron material magnetic separation device and then output to the second granulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0021] Figure 1 This is a plan layout diagram of the waste oil barrel processing line according to an embodiment of the utility model;

[0022] Figure 2 for Figure 1 A plan view showing the layout of the iron material magnetic separation device of the waste oil barrel processing line;

[0023] Figure 3 This is a schematic diagram of the structure of the iron material magnetic separation device according to an embodiment of the utility model;

[0024] Figure 4 for Figure 3 A schematic diagram showing the structure of the iron material magnetic separation device behind the hidden bracket;

[0025] Figure 5 for Figure 3 An exploded view of a magnetic separation drum of an iron material magnetic separation device is shown;

[0026] Figure 6 for Figure 3 A cross-sectional view of a magnetic separation drum of an iron material magnetic separation device is shown.

[0027] The accompanying drawings are only one specific embodiment of the present invention, and the form and structure of this specific embodiment should not limit the expansion of other embodiments.

[0028] Shredder 100;

[0029] Iron material magnetic separation device 200, feeding belt 211, scraper 212, scraper and baffle 213;

[0030] Magnetic separation drum 220, core shaft 221, vertical slot 221a, magnetic block 222, recess 222a, cylinder 223, cylinder 223a, removable end cover 223b, air jet through hole 223c, convex eave 223d, dust collection hanging basket 224, sealing ring 225, sealing felt ring 226;

[0031] Magnetic separation motor 230;

[0032] Slag collecting hopper 240;

[0033] Bracket 251, shaft seat 252, first clamping block 252a, seat cover 253, second clamping block 253a;

[0034] Discharging belt 260;

[0035] A first granulator 300;

[0036] The second agglomerator 400 . DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] Reference Figures 2 to 5 The utility model provides an iron material magnetic separation device 200, wherein the iron material transmission direction is from right to left, and the iron material magnetic separation device 200 comprises at least two magnetic separation rollers 220, wherein the at least two magnetic separation rollers 220 are arranged in sequence from right to left and from top to bottom:

[0039] The magnetic separation drum 220 includes a core shaft 221, a magnetic block 222, and a cylinder 223. The magnetic block 222 is fixedly mounted on the core shaft 221. The magnetic separation motor 230 is suitable for driving the cylinder 223 to roll around the core shaft 221, so that the rolling direction of the cylinder 223 can be tangentially from right to left along the upper edge. The cylinder 223 is provided with a slag separation zone. One of the magnetic poles of the magnetic block 222 corresponds to the inner side of the slag separation zone. The slag separation zone is suitable for dynamically corresponding to the area starting from the upper end of the cylinder 223 and continuing to extend downward after passing the rightmost end thereof. The iron material receiving point of the slag separation zone deviates from the upper edge and the lower edge of the slag separation zone.

[0040] The slag separation zone of the highest magnetic separation drum 220 is suitable for receiving external iron materials, and the lower magnetic separation drum 220 is suitable for receiving the iron materials output by the higher magnetic separation drum 220 .

[0041] The cylinder 223 is preferably made of hard material, such as steel or cast iron, and the magnetic separation motor 230 can be an electric motor or a hydraulic motor. Figure 3 , the core shaft 221 needs to be fixedly mounted on the bracket 251, and the cylinder 223 needs to be rotatably connected to the core shaft 221, so that the cylinder 223 can roll around the core shaft 221. In order to solve the problem of convenient disassembly and assembly of the special position relationship between the cylinder 223, the core shaft 221 and the magnetic block 222, refer to Figures 3 to 5The cylinder 223 includes a cylinder portion 223a and a removable end cover 223b. One end of the cylinder portion 223a is an end cover of its own, and the other end is an open end. The open end is connected to the removable end cover 223b. Both the end cover of its own and the removable end cover 223b are rotatably connected to the core shaft 221. The open end can be used to disassemble the magnetic block 222 on the core shaft 221. By opening the open end of the cylinder portion 223a, the magnetic block 222 on the core shaft 221 can be disassembled.

[0042] In some settings, the cylinder 223 is composed of a first section and a second section spliced ​​together by screws. The two ends of the first section are suitable for rotatably connecting the core shaft 221. The peripheral wall of the first section has an operating port. The second section is suitable for encapsulating the operating port, and the operating port is suitable for disassembling and assembling the magnetic block 222.

[0043] The magnetic block 222 can be cast as an integral block, or can be obtained by splicing multiple unit blocks side by side / array-type; the magnetic block 222 can be fixedly installed on the core shaft 221 by bolts, set screws, rivets, adhesion, etc. Figure 1 , Figure 2 and Figure 5 A connecting column is convexly provided on the inner side of the magnetic block 222, and the connecting column is connected to the mounting column on the peripheral wall of the core shaft 221 by screws. In some settings, one end of the connecting column is sleeved with the mounting column and connected to the mounting column by a set screw. In some settings, the outer peripheral wall of the magnetic block 222 is provided with a deep nailing hole suitable for connecting to the connecting column.

[0044] Reference Figure 5 and Figure 6 The cylinder 223 is connected to a driven wheel, the output shaft of the magnetic separation motor 230 is connected to a driving wheel, and the driving wheel is connected to the driven wheel through a belt drive. Figures 1 to 4 The rotation direction of the cylinder 223 is counterclockwise as shown in the figure, so that the iron material is transmitted from right to left.

[0045] Reference Figure 1 A waste oil barrel processing production line is provided, along the iron material transmission direction, with a shredder 100, an iron material magnetic separation device 200, a first granulator 300, and another iron material magnetic separation device 200, the shredder 100 is suitable for shredding the waste oil barrel into primary iron materials, such as primary iron materials with a width of 40±2mm, the primary iron materials output by the shredder 100 are suitable for being transported to the highest magnetic separation roller 220 of the corresponding iron material magnetic separation device 200, the first granulator 300 is suitable for repeatedly hammering the primary iron materials into iron balls, the primary iron materials that are repeatedly hammered and bent and deformed are peeled off from the stubborn slag that may exist, and the primary iron balls output by the first granulator 300 are suitable for being transported to the highest magnetic separation roller 220 of the corresponding iron material magnetic separation device 200.

[0046] Reference Figure 1The shredder 100 includes a material box and at least two twisting rollers arranged in the material box. The upper end of the material box is open for the oil barrel inlet, and the lower end of the material box is provided with an iron material outlet. The twisting teeth of two adjacent twisting rollers are staggered to be suitable for tearing the waste oil barrel. The rotational speed direction and / or size of the two adjacent twisting rollers are different.

[0047] Reference Figure 1 The pelletizer includes a box, rollers contained in the box, and several pendulums connected to the sides of the rollers. The upper end of the box is provided with a feed port, and the lower end of the box is provided with a drop hole. The size of the iron material placed in the bottom of the box does not meet the requirements of the drop hole. The iron material is hammered and stirred by the reciprocating pendulum, and the iron material gradually bends into an iron ball (iron ball), and then can pass through the drop hole.

[0048] Reference Figure 2 , the operation process of the utility model is as follows:

[0049] The magnetic separation motor 230 drives the cylinder 223 to rotate relative to the core shaft 221, that is, the cylinder 223 rolls;

[0050] The primary iron material (actually iron flakes) obtained by shredding the waste oil barrel by the shredder 100 or the crusher is first scattered on the landing point of the slag separation area of ​​the highest magnetic separation drum 220. After the iron material lands, it rolls or shakes to a certain extent. Based on the magnetic field attraction exerted by the magnetic block 222 corresponding to the slag separation area, the iron material adheres to the cylinder 223. When landing, the slag that has been independent collides with the cylinder 223 and rebounds to the right and falls. The slag that has not been independent when landing collides, rolls and / or shakes and then separates from the iron material and falls back.

[0051] The iron material obtained by preliminary screening of the uppermost magnetic separation drum 220 is transported to the lower magnetic separation drum 220 for further screening.

[0052] Compared with the prior art, the beneficial effects of the present application include: iron materials are sprinkled into the slag separation zone by landing, the slag separation zone deviates from the high point of the magnetic separation drum 220, and the independent iron materials and slag are directly separated based on whether they are affected by magnetic force, and the iron materials that have not been separated from the slag are rolled and shaken to shake off the slag. The slag removal quality of each magnetic separation drum 220 is better, and the slag content of the iron materials is effectively reduced through two drum magnetic separations.

[0053] Reference Figures 3 to 6The bending external force on the core shaft 221 is mainly the gravity of the cylinder 223 and the magnetic block 222, and the impact force of the falling iron material. In order to solve the installation convenience of the core shaft 221 and retain the necessary bending strength of the core shaft 221, the utility model also includes a shaft seat 252 and a seat cover 253. Both ends of the core shaft 221 are axially symmetrically provided with two vertical card slots 221a. The shaft seat 252 is suitable for the end of the core shaft 221 to lie. The shaft seat 252 is provided with a first card block 252a suitable for snap-fit ​​connection to the vertical card slot 221a. The seat cover 253 is provided with a second card block 253a suitable for snap-fit ​​connection to the vertical card slot 221a. The seat cover 253 is suitable for covering the shaft seat 252 and jointly clamping the end of the core shaft 221. The vertical card slot 221a is filled by the corresponding first card block 252a and second card block 253a.

[0054] Reference Figures 3 to 6 Preferably, both end covers of the cylinder 223 are integrally formed with convex eaves 223d, which protrude from the outer peripheral wall of the cylinder 223 and are integrally formed with a guide slope facing the middle of the outer peripheral wall of the cylinder 223. The convex eaves 223d are suitable for blocking the iron materials on the outer peripheral wall of the cylinder 223, and are also suitable for the backflow of iron materials that are about to overflow, and are also suitable for reinforcing ribs of the peripheral wall and end covers of the cylinder 223.

[0055] Reference Figures 1 to 4 In some embodiments of the utility model, a feeding belt 211 is also included which is arranged obliquely. It can be understood that the feeding belt 211 includes an obliquely arranged belt body, at least two pulleys, and a motor that directly drives one of the pulleys. The belt body is wound around the at least two pulleys, and the rotating pulley drives the belt body to rotate in a circular manner. The feeding belt 211 obliquely sprinkles iron material upward to the iron material landing point of the highest magnetic separation drum 220, so that the slag-containing iron material is smashed into iron material and slag. After the iron material rolls or shakes a little, it adheres to the cylinder 223 and initially moves upward and leftward along the cylinder 223. The slag such as the paint block / ink block that has not been separated separates from the rolling iron material and then falls back. The slag such as the paint block / ink block that has been separated rebounds to the right and falls after being thrown and landed, so that the iron material and the slag are better separated.

[0056] In practice, the iron materials falling from the shredder 100 or the warehouse to the upper material belt 211 are piled up, and even the piled up iron materials are mixed with slag. Figures 1 to 4Preferably, it also includes a scraper 212 vertically arranged above the feeding belt 211, the scraper 212 and the feeding belt 211 form a material passing distance d1, the highest magnetic separation roller 220 and the throwing end of the feeding belt 211 have a distance d2, d1 is greater than the height of a single iron material but less than the height of two iron materials, d2 is greater than the height of two iron materials but less than the height of three iron materials. The vertical scraper 212 is relatively inclined to the feeding belt 211, forming a scraping effect, the scraper 212 is suitable for spreading the iron materials stacked on the feeding belt 211, and the slag carried by the stacked iron materials is separated from the top of the iron materials by being pushed, and the scraper 212 is suitable for counter-scraping the slag remaining on the iron materials (when the remaining slag is facing upwards), and the scraper 212 is suitable for pushing the iron blocks with the remaining slag (when the remaining slag is facing downwards), so that the slag is peeled off the iron materials based on the wiping of the feeding belt 211. The waste oil drum is shredded into iron materials by the shredder 100, which are actually iron sheets. Each iron sheet falls on the feeding belt 211 in an uncertain state. When the iron sheet lies on its side, its width can be presented as its height. When the iron sheet lies prone or supine, it has a corresponding height based on the original arch (the original curvature of the oil drum). The larger height value of the two is defined as the iron material height.

[0057] Reference Figures 1 to 4 In some embodiments of the present invention, a slag collecting bucket 240 is further included. The at least two magnetic separation rollers 220 are both located above the slag collecting bucket 240 and are both suitable for dropping slag into the slag collecting bucket 240. The slag screened by magnetic separation is collected in a centralized manner to avoid scattering in the workshop, and to facilitate the discharge, packaging and storage of slag. In some designs, a ton bag is placed under the slag collecting bucket 240.

[0058] Some paint and ink blocks are torn into dust by the shredder 100. Figures 1 to 4 The two magnetic separation rollers 220 are suitable for covering the upper port of the slag collecting bucket 240. A dust suction channel is set at the upper end of the side wall of the slag collecting bucket 240. One end of the dust suction channel passes through the inner side of the slag collecting bucket 240, and the other end is suitable for connecting to a dust collector, such as a bag-type dust collector or a filter element-type dust collector.

[0059] The two magnetic separation rollers 220 are suitable for covering the upper port of the slag collecting bucket 240. It is understandable that they are not completely covered, and the magnetic separation rollers 220 can still roll. The highest magnetic separation roller 220 and the right end of the slag collecting bucket 240 retain the necessary slag dropping distance / slag dropping opening, and the slag dropping distance / slag dropping opening is still retained between the two magnetic separation rollers 220. Based on the covering of the two magnetic separation rollers 220, a good negative pressure dust suction space is formed inside the slag collecting bucket 240 to prevent the slag dust that is smashed from re-attaching to the iron material.

[0060] In practice, the feeding belt 211 may adhere to a certain amount of slag, refer to Figure 1 , Figure 2The utility model also includes a scraper and baffle plate 213, the lower end of the scraper and baffle plate 213 is hinged to the inner side of the right end of the slag collecting bucket 240, and the scraper and baffle plate 213 is connected to the slag collecting bucket 240 through an elastic member, such as a torsion spring and a tension spring, so that the upper end of the scraper and baffle plate 213 contacts the bottom surface of the feeding belt 211, so that the feeding belt 211 is scraped after scattering iron materials. The scraper and baffle plate 213 is also suitable for stopping the slag splashing to the right from the magnetic separation drum 220.

[0061] Reference Figure 2 , Figure 5 In some embodiments of the utility model, the inner wall of the cylinder 223 and / or the outer wall of the magnetic block 222 are provided with a recess 222a, and the cylinder 223 and the magnetic block 222 define the recess 222a as an air chamber, which is suitable for connecting the air source through the air passages of the magnetic block 222 and the core shaft 221 in sequence. The air source can be external compressed air, a self-owned compressed air tank, a fan, etc. A plurality of groups of jet holes 223c are arranged circumferentially on the peripheral wall of the cylinder 223, and the air chamber is suitable for blowing the iron material away from the slag area through the jet holes 223c. The iron material is blown and swept during the landing process and the rolling and shaking process, so that the slag can be stripped off the iron material more cleanly; in addition, based on the air venting effect of the air chamber on the gap between the cylinder 223 and the magnetic block 222, the gap between the cylinder 223 and the magnetic block 222 is not easy to be blocked by dust accumulation.

[0062] Reference Figure 5 , Figure 6 The magnetic block 222 is connected with an air pipe joint suitable for connecting to the inflation cavity, and both ends of the airway of the core shaft 221 are connected with air pipe joints; of the two air pipe joints connected to the core shaft 221, one is suitable for connecting to the air pipe joint on the magnetic block 222 through an air pipe, and the other is suitable for connecting to the air source through an air pipe.

[0063] Preferably, the slag collecting hopper 240 is provided with the above-mentioned dust suction channel, and the slag sprayed by the air injection through hole 223c can be quickly sucked away and fall back.

[0064] Preferably, two adjacent groups of air jet through holes 223c are staggered, and staggered winds are alternately used for spraying and sweeping during the tumbling and shaking of the iron material, so that more points of the iron material are sprayed and swept.

[0065] In practice, the rotation speed of the cylinder 223 is relatively low, and its centrifugal effect is relatively low, so a small amount of slag and dust may overflow into the cylinder 223. Figure 2 , Figure 5 In some embodiments of the present invention, the core shaft 221 is connected to a dust collection basket 224, which is accommodated in the cylinder 223, and the end cover and / or the detachable end cover 223b are provided with a dust cleaning port. Preferably, the dust cleaning port is detachably packaged with a cover plate.

[0066] Reference Figure 2 and Figure 5The dust collecting basket 224 is provided with a connecting arm protruding radially inward, and a connecting block is integrally formed at the proximal end of the connecting arm, and the connecting block is suitable for connecting the core shaft 221 through screws.

[0067] The cylinder 223 is rotatable relative to the core shaft 221, and needs to be highly flexible in rotation. The cylinder 223 can be connected to the core shaft 221 through a rolling bearing. In order to solve the technical problems of the rolling bearing package of the rotating structure having isolation protection and being able to be filled with lubricant, refer to Figure 5 , Figure 6 The utility model further includes a sealing ring 225 and a sealing felt ring 226. The free end cover and the removable end cover 223b are both integrally formed with a bearing mounting seat with an opening facing outward. The bearing mounting seat is connected to the mandrel 221 through a rolling bearing. The sealing ring 225 is threadedly connected to the peripheral wall of the mandrel 221 and is provided with a ring suitable for pushing the inner ring of the rolling bearing toward the cylinder 223. The sealing ring 225 is provided with a ring groove suitable for accommodating the sealing felt ring 226. The sealing felt ring 226 partially protrudes from the sealing ring 225 and pushes the outer ring of the rolling bearing. In this rotating structure of the utility model, the structure between the inner and outer rings of the rolling bearing can also be sealed and isolated, and can be filled with lubricant.

[0068] Reference Figures 1 to 4 In some embodiments of the present invention, a discharge belt 260 is further included, and the lowest magnetic separation roller 220 is suitable for returning iron materials to the discharge belt 260 .

[0069] Reference Figure 1 In some embodiments of the present invention, a second granulator 400 is further included. The primary iron balls outputted by the first granulator 300 are screened by the corresponding iron material magnetic separation device 200 and then sent to the second granulator 400. The blanking hole of the first granulator 300 is 35±2mm. The iron balls outputted by the first granulator 300 are further reduced after being hammered and bent again. The blanking hole of the second granulator 400 is 28±4mm.

[0070] The above embodiments are only used to illustrate the technical solution of the utility model but not to limit it. Any modification or equivalent substitution that does not deviate from the spirit and scope of the utility model shall be included in the scope of the technical solution of the utility model.

Claims

1. An iron material magnetic separation device, characterized in that: The iron material transmission direction is from right to left. The iron material magnetic separation device includes at least two magnetic separation rollers, and the at least two magnetic separation rollers are arranged from right to left and from top to bottom in sequence: The magnetic separation drum comprises a core shaft, a magnetic block, and a cylinder body. The magnetic block is fixedly mounted on the core shaft. The magnetic separation motor is suitable for driving the cylinder body to roll around the core shaft so that the rolling direction of the cylinder body can be tangentially from right to left along the upper edge. The cylinder body is provided with a slag separation zone. One of the magnetic poles of the magnetic block corresponds to the inner side of the slag separation zone. The slag separation zone is suitable for dynamically corresponding to the area starting from the uppermost end of the cylinder body and continuing to extend downward after passing the rightmost end thereof. The iron material receiving point of the slag separation zone deviates from the upper edge and the lower edge of the slag separation zone. The slag separation zone of the highest magnetic separation drum is suitable for receiving external iron materials, and the lower magnetic separation drum is suitable for receiving iron materials output by the higher magnetic separation drum.

2. The iron material magnetic separation device according to claim 1, characterized in that: The cylinder body includes a cylinder portion and a removable end cover, one end of the cylinder portion is a self-contained end cover, and the other end is an open end, the open end is connected to the removable end cover, the self-contained end cover and the removable end cover are both rotatably connected to the core shaft, and the open end can disassemble and install the magnetic block on the core shaft.

3. The iron material magnetic separation device according to claim 1, characterized in that: The inner wall of the cylinder and / or the outer wall of the magnetic block are provided with a recess, and the cylinder and the magnetic block define the recess as an air blast chamber, and the air blast chamber is suitable for connecting the air source through the air passages of the magnetic block and the core shaft in sequence, and the peripheral wall of the cylinder is provided with multiple groups of air injection holes along the circumferential direction, and the air blast chamber is suitable for spraying the iron material in the slag separation zone through the air injection holes.

4. The iron material magnetic separation device according to any one of claims 1 to 3, characterized in that: It also includes a slag collecting bucket, and the at least two magnetic separation rollers are both located above the slag collecting bucket and are both suitable for dropping slag into the slag collecting bucket.

5. The iron material magnetic separation device according to claim 4, characterized in that: The two magnetic separation rollers are suitable for covering the upper port of the slag collecting bucket. A dust suction channel is provided at the upper end of the side wall of the slag collecting bucket. One end of the dust suction channel passes through the inner side of the slag collecting bucket, and the other end is suitable for connecting to a dust collector.

6. The iron material magnetic separation device according to any one of claims 1 to 3, characterized in that: It also includes an axle seat and a seat cover, both ends of the core shaft are provided with two vertical slots in an axially symmetrical manner, the axle seat is suitable for the end of the core shaft to lie, the axle seat is provided with a first block suitable for snap-connecting to the vertical slot, the seat cover is provided with a second block suitable for snap-connecting to the vertical slot, the seat cover is suitable for covering the axle seat and jointly clamping the end of the core shaft, and the vertical slot is filled by the corresponding first block and second block.

7. The iron material magnetic separation device according to any one of claims 1 to 3, characterized in that: It also includes an inclined feeding belt, which is suitable for throwing iron materials obliquely upward to the iron material landing point of the highest magnetic separation drum.

8. The iron material magnetic separation device according to claim 7, characterized in that: It also includes a scraper vertically arranged above the feeding belt, wherein the scraper and the feeding belt form a material passing distance d1, and d1 is greater than the height of a single iron material but less than the height of two iron materials.

9. A waste oil barrel processing line, characterized in that: A shredder, an iron material magnetic separation device according to any one of claims 1 to 8, a first granulator, and an iron material magnetic separation device according to any one of claims 1 to 8 are sequentially arranged along the iron material transmission direction; The shredder is suitable for shredding waste oil barrels into primary iron materials, and the primary iron materials output by the shredder are suitable for being transported to the corresponding highest magnetic separation roller of the iron material magnetic separation device. The first granulator is suitable for repeatedly hammering the primary iron materials into iron balls, and the primary iron balls output by the first granulator are suitable for being transported to the corresponding highest magnetic separation roller of the iron material magnetic separation device.

10. The waste oil barrel processing line according to claim 9, characterized in that: It also includes a second granulator. The primary iron lumps output by the first granulator are screened by the corresponding iron material magnetic separation device and then output to the second granulator.

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