Raw material treatment equipment for graphite electrode production

Abstract

The invention discloses raw material treatment equipment for graphite electrode production, and relates to the technical field of graphite electrode raw material treatment. According to the raw material treatment equipment for graphite electrode production, a special dust falling mechanism is arranged for the jaw type coarse crusher, a water source is driven by a first water pump to synchronously spray and atomize an inlet and an outlet of the jaw type coarse crusher after being shunted, and meanwhile, fine crushed materials are subjected to secondary dust falling washing by using a spraying branch pipe at an inlet of the ring hammer type fine crusher; dust suppression in the coarse crushing and fine crushing full-crushing links is achieved, dust dissipation is reduced from the source, the production operation environment is greatly improved, and meanwhile, loss of raw materials caused by dust loss is reduced; and after being filtered, the waste water is conveyed to the fine crushing unit for secondary spraying and dust falling, so that stepped cyclic utilization of the dust falling waste water is realized.

Description

Technical Field

[0001] This invention relates to the field of graphite electrode raw material processing technology, specifically to a raw material processing device for graphite electrode production. Background Technology

[0002] As a core consumable in metallurgy, chemical industry and other fields, graphite electrodes are mainly produced from carbonaceous raw materials such as petroleum coke and needle coke. The quality of crushing, grading and impurity removal of raw materials directly determines the density, strength and conductivity of the finished graphite electrode.

[0003] Currently, the pretreatment process of raw materials for graphite electrode production generally adopts a graded crushing process. However, the existing processing equipment and supporting processes have many technical defects: Firstly, dust pollution is a prominent problem during the crushing process. The dust removal structure of traditional crushing equipment is simple, with only simple spraying or dust collection devices set in local locations. It is impossible to suppress dust throughout the entire process of coarse and fine crushing. The large amount of graphite dust released not only pollutes the working environment but also causes raw material loss and threatens the health of operators.

[0004] Secondly, water resource utilization efficiency is low. The dustfall wastewater from the crushing process is mostly used once and is not recycled. This not only increases the cost of production water but also generates a large amount of industrial wastewater, increasing the pressure on environmental protection.

[0005] Third, the grading and screening effect after raw material crushing is poor. The screening structure of existing equipment is mostly fixed screen, which is prone to clogging and incomplete screening. It is impossible to accurately control the particle size of raw materials, resulting in unqualified materials entering subsequent processes and affecting the quality of graphite electrode products.

[0006] Fourth, the equipment is inconvenient to clean and maintain. Dirt and sediment generated during crushing and screening are easy to accumulate in the inner cavity of the equipment, requiring the machine to be stopped for disassembly and cleaning, which reduces production efficiency.

[0007] To avoid the above problems, a raw material processing device for graphite electrode production is proposed to solve the existing problems. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention provides a raw material processing device for graphite electrode production, which solves the problems of incomplete dust suppression, low water resource utilization, poor screening efficiency, and easy accumulation of scale in the equipment cavity, which are difficult to clean.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a raw material processing device for graphite electrode production, comprising a base and a jaw crusher, wherein the jaw crusher is fixedly connected to the top of the base via a bracket, and a ring hammer crusher is fixedly connected to the top of the base and the bottom of the jaw crusher via a bracket, and a separation frame is fixedly connected to the top of the base and the bottom of the ring hammer crusher, wherein a dust suppression mechanism adapted to the jaw crusher is provided on the top of the base, and a water-saving dust suppression mechanism adapted to the ring hammer crusher is provided on the top of the base, and multiple separation mechanisms are provided inside the separation frame.

[0010] Preferably, the dust suppression mechanism includes a first water pump, which is fixedly mounted on the top of the base by a bracket. The outlet end of the first water pump is connected to a three-way pipe, and the two branch pipes of the three-way pipe are respectively connected to a first cluster nozzle and a second cluster nozzle. The first cluster nozzle and the second cluster nozzle extend into the interior of the jaw crusher outlet and inlet, respectively.

[0011] Preferably, the water-saving and dust-reducing mechanism includes a washing frame, which is fixedly mounted on the top of the base by a bracket. A perforated chain conveyor belt is installed inside the washing frame. A water storage tank is fixedly connected to one side of the washing frame. A return pipe is connected between the top of the water storage tank and the side of the washing frame, and two return pipes are provided. A sewage pipe is connected to the front of the water storage tank.

[0012] Preferably, a protective cover is fixedly connected to the top of the inlet of the ring hammer crusher, a second water pump is fixedly connected to the rear side of the water storage tank, and the inlet of the second water pump is connected to the water storage tank through a pipe. The outlet end of the second water pump is connected to a main water supply pipe, and a number of spray branch pipes are connected to the top of the main water supply pipe, and the spray branch pipes extend into the interior of the protective cover.

[0013] Preferably, the multi-separation mechanism includes an inclined bottom screen frame, which is slidably disposed inside the separation frame. A filter plate is fixedly connected inside the inclined bottom screen frame. A second motor is fixedly connected to the top of the base. The output shaft of the second motor is fixedly connected to a rotating shaft via a coupling, and one end of the rotating shaft extends into the interior of the separation frame. A cam is fixedly connected to the surface of the rotating shaft, and a strip frame adapted to the cam is fixedly connected to the bottom of the inclined bottom screen frame.

[0014] Preferably, the bottom of the inner cavity of the separation frame is provided with an annular mud storage trough, and both sides of the separation frame are fixedly connected to a mud pump. The inlet of the mud pump is connected to a mud pumping pipe, and one end of the mud pumping pipe passes through the separation frame and extends into the interior of the annular mud storage trough. The interior of the separation frame is provided with a conical cavity that matches the annular mud storage trough. Several mud scrapers that are adapted to the conical cavity are fixedly connected at equal intervals around the surface of the rotating shaft.

[0015] Preferably, the front side of the washing frame is connected to a removal pipe, the outlet end of the removal pipe is threaded with a threaded cap, the rear side of the washing frame is fixedly connected to a first motor, the output shaft of the first motor is fixedly connected to an auger shaft through a coupling, and the end of the auger shaft is rotatably connected to the inner wall of the removal pipe through a bracket, a guide plate is fixedly connected to one side of the inner cavity of the washing frame, and a filter plate adapted to the return pipe is installed on the side of the inner cavity of the washing frame.

[0016] Preferably, the front and rear sides of the inner cavity of the separation frame are provided with limiting grooves, and limiting sliders are slidably connected inside the limiting grooves. The opposite sides of the two limiting sliders are respectively fixedly connected to the front and rear sides of the inclined bottom screen frame, and a water pumping pipe is connected to one side of the separation frame.

[0017] Beneficial effects

[0018] This invention provides a raw material processing device for graphite electrode production. Compared with existing technologies, it has the following advantages:

[0019] (1) The raw material processing equipment for graphite electrode production is equipped with a special dust suppression mechanism for the jaw crusher. The water source is driven by the first water pump and then sprayed and atomized synchronously at the inlet and outlet of the jaw crusher after being diverted. At the same time, the spray branch pipe at the inlet of the ring hammer crusher is used to perform secondary dust suppression and washing of the fine crushed material. This achieves dust suppression in the entire crushing process of coarse and fine crushing, reduces dust emission from the source, greatly improves the production working environment, and reduces the loss of raw materials caused by dust loss.

[0020] Secondly, the equipment collects the dust-suppressing wastewater from the coarse crushing stage, first immerses and washes the coarsely crushed material in a washing frame, and then filters it before conveying it to the fine crushing unit for secondary spraying to suppress dust. This achieves the cascade recycling of dust-suppressing wastewater, significantly reducing the consumption of fresh water in production and reducing industrial wastewater discharge. It not only meets environmental protection requirements but also effectively saves production water costs.

[0021] (2) The raw material processing equipment for graphite electrode production, by setting multiple separation mechanisms in the separation frame, drives the inclined bottom screen frame and the filter plate to reciprocate through the drive component, realizes efficient screening of finely crushed materials, can accurately intercept unqualified materials, ensure that the raw material entering the subsequent process has uniform particle size, and provide reliable guarantee for the density, strength and conductivity of the finished graphite electrode. At the same time, the screen movement structure design effectively avoids the problem of screen blockage and improves screening efficiency.

[0022] (3) The raw material processing equipment for graphite electrode production has a dirt cleaning structure set in the inner cavity of the separation frame. The drive shaft drives the scraper to scrape the inner cavity wall, so that the deposited dirt is concentrated in the annular mud storage tank. The mud pump and mud pipe can be used to extract and clean the dirt without stopping the machine. There is no need to disassemble the equipment, which effectively reduces the equipment maintenance time and improves the continuous operation capability of the equipment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the external structure of the present invention from another perspective;

[0025] Figure 3 This is a schematic diagram of the dust suppression mechanism structure of the present invention;

[0026] Figure 4 This is a schematic diagram (a) of the water-saving and dust-reducing mechanism structure of the present invention.

[0027] Figure 5 This is a schematic diagram (II) of the water-saving and dust-reducing mechanism structure of the present invention.

[0028] Figure 6 This is a schematic diagram (III) of the water-saving and dust-reducing mechanism structure of the present invention;

[0029] Figure 7 This is a schematic diagram (IV) of the water-saving and dust-reducing mechanism structure of the present invention.

[0030] Figure 8 This is a schematic diagram of the internal structure of the washing frame of the present invention;

[0031] Figure 9 This is a schematic diagram (a) of the multi-separation mechanism structure of the present invention;

[0032] Figure 10 This is a schematic diagram (II) of the multi-separation mechanism structure of the present invention;

[0033] Figure 11 This is a schematic diagram (III) of the multi-separation mechanism structure of the present invention.

[0034] In the diagram: 1. Base; 2. Jaw crusher; 3. Ring hammer crusher; 4. Separation frame; 5. Dust suppression mechanism; 501. First water pump; 502. T-pipe; 503. First cluster nozzle; 504. Second cluster nozzle; 6. Water-saving dust suppression mechanism; 601. Washing frame; 602. Perforated chain conveyor belt; 603. Water tank; 604. Return pipe; 605. Sewage pipe; 606. Protective cover; 607. Second water pump; 608. Main water supply pipe; 609. Spray branch pipe. 7. Multiple separation mechanism; 701. Inclined bottom screen frame; 702. Screen plate; 703. Second motor; 704. Rotating shaft; 705. Cam; 706. Bar frame; 707. Annular mud storage tank; 708. Mud pump; 709. Mud suction pipe; 710. Conical cavity; 711. Mud scraper; 8. Removal pipe; 9. Threaded cap; 10. First motor; 11. Screw shaft; 12. Guide plate; 13. Filter plate; 14. Limiting chute; 15. Limiting slider; 16. Water suction pipe. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0036] Please see Figure 1-11 This invention provides a technical solution: a raw material processing device for graphite electrode production, comprising a base 1 and a jaw crusher 2. The jaw crusher 2 is fixedly connected to the top of the base 1 via a bracket. A ring hammer crusher 3 is fixedly connected to the top of the base 1 and below the jaw crusher 2 via a bracket. A separation frame 4 is fixedly connected to the top of the base 1 and below the ring hammer crusher 3.

[0037] In a preferred embodiment, to facilitate atomization and dust suppression during material crushing, a dust suppression mechanism 5 adapted to the jaw crusher 2 is provided on the top of the base 1. The dust suppression mechanism 5 includes a first water pump 501, which is fixedly mounted on the top of the base 1 by a bracket. The outlet end of the first water pump 501 is connected to a three-way pipe 502. The two branch pipes of the three-way pipe 502 are respectively connected to a first cluster nozzle 503 and a second cluster nozzle 504. The first cluster nozzle 503 and the second cluster nozzle 504 extend into the interior of the outlet and inlet of the jaw crusher 2, respectively.

[0038] In a preferred embodiment, to facilitate dust suppression and washing of materials during the fine crushing process while saving energy and reducing consumption, the top of the base 1 is equipped with a water-saving and dust-suppressing mechanism 6 adapted to the ring hammer crusher 3. The water-saving and dust-suppressing mechanism 6 includes a washing frame 601, which is fixedly mounted on the top of the base 1 by a bracket. A perforated chain conveyor belt 602 is installed inside the washing frame 601. A water storage tank 603 is fixedly connected to one side of the washing frame 601, and a return pipe connects the top of the water storage tank 603 and the side of the washing frame 601. 604, and two return pipes 604 are provided. A sewage pipe 605 is connected to the front side of the water storage tank 603. A protective cover 606 is fixedly connected to the top of the inlet of the ring hammer crusher 3. A second water pump 607 is fixedly connected to the rear side of the water storage tank 603. The inlet of the second water pump 607 is connected to the water storage tank 603 through a pipe. The outlet end of the second water pump 607 is connected to a water supply main pipe 608. Several spray branch pipes 609 are connected to the top of the water supply main pipe 608. The spray branch pipes 609 extend into the interior of the protective cover 606.

[0039] The front side of the washing frame 601 is connected to the removal pipe 8, and the outlet end of the removal pipe 8 is threadedly connected to the threaded cap 9. The rear side of the washing frame 601 is fixedly connected to the first motor 10. The output shaft of the first motor 10 is fixedly connected to the auger shaft 11 through a coupling, and the end of the auger shaft 11 is rotatably connected to the inner wall of the removal pipe 8 through a bracket. The inner cavity of the washing frame 601 is fixedly connected to one side of the guide plate 12, and the inner cavity of the washing frame 601 is equipped with a filter plate 13 that is compatible with the return pipe 604.

[0040] In a preferred embodiment, to facilitate the separation of material particles and the sedimentation, collection, and centralized extraction of impurities in the water source, a multi-stage separation mechanism 7 is provided inside the separation frame 4. The multi-stage separation mechanism 7 includes an inclined-bottom screen frame 701, which is slidably disposed inside the separation frame 4. A filter plate 702 is fixedly connected inside the inclined-bottom screen frame 701. A water-filtering mesh is provided at the bottom of the inclined-bottom screen frame 701. A second motor 703 is fixedly connected to the top of the base 1. The output shaft of the second motor 703 is fixedly connected to a rotating shaft 704 via a coupling, and one end of the rotating shaft 704 extends into the interior of the separation frame 4. A cam 705 is fixedly connected to the surface of the rotating shaft 704. A frame 706 adapted to the cam 705 is fixedly connected to the bottom of the inclined-bottom screen frame 701. An annular mud storage trough 707 is provided at the bottom of the inner cavity of the separation frame 4. Mud pumps 708 are fixedly connected to both sides of the separation frame 4. The inlet of the mud pump 708 is connected to a mud pump pipe 709, and one end of the mud pump pipe 709 passes through the separation frame 4 and extends into the interior of the annular mud storage trough 707. A conical cavity 710 matching the annular mud storage trough 707 is provided inside the separation frame 4. Several mud scrapers 711 that are adapted to the conical cavity 710 are fixedly connected at equal intervals around the surface of the rotating shaft 704. Limiting grooves 14 are provided on the front and rear sides of the inner cavity of the separation frame 4. Limiting sliders 15 are slidably connected inside the limiting grooves 14. The opposite sides of the two limiting sliders 15 are fixedly connected to the front and rear sides of the inclined bottom screen frame 701, respectively. A water pumping pipe 16 is connected to one side of the separation frame 4.

[0041] The specific operating steps are as follows:

[0042] Material is fed into the jaw crusher 2 through the top inlet. The material enters the jaw crusher 2 and is coarsely crushed. The coarsely crushed material falls into the washing frame 601 and is conveyed to the ring hammer crusher 3 through the perforated chain conveyor belt 602 for fine crushing. Finally, the material is discharged through the bottom outlet of the ring hammer crusher 3.

[0043] When the jaw crusher 2 crushes the material, the inlet of the first water pump 501 is connected to the external water source in advance. Then, the first water pump 501 is used as a drive to transport the water source to the inside of the three-way pipe 502, and the three-way pipe 502 is used to divert the water to the inside of the first cluster nozzle 503 and the second cluster nozzle 504, so that the inlet and outlet of the jaw crusher 2 can be atomized and dust reduced.

[0044] As dust is sprayed at the inlet and outlet of the jaw crusher 2, the coarsely crushed lumpy material mixed with water enters the interior of the washing frame 601. The water is pre-accumulated in the interior of the washing frame 601. After accumulating to a preset height, it is transferred to the interior of the water storage tank 603 through the return pipe 604 for temporary storage. Correspondingly, the material coarsened by the jaw crusher 2 is immersed in the water inside the washing frame 601. Then, the coarsened material is continuously transported to the interior of the ring hammer crusher 3 by the perforated chain conveyor belt 602. During this period, the water filtered inside the water storage tank 603 is transferred to the interior of the water supply main pipe 608 by the second water pump 607. The water supply main pipe 608 is then transported to the interior of the spray branch pipe 609. The spray branch pipe 609 sprays water at the top of the inlet of the ring hammer crusher 3, thereby suppressing dust and rinsing the finely crushed material in the ring hammer crusher 3.

[0045] When the fine material mixed with water is unloaded and enters the separation frame 4, the material will first enter the top of the screen plate 702, while the water will flow to the bottom of the inner cavity of the separation frame 4 by gravity. Then the second motor 703 is started. The second motor 703 drives the cam 705 to rotate through the rotating shaft 704. The cam 705 drives the inclined bottom screen frame 701 to reciprocate through the bar frame 706. When the inclined bottom screen frame 701 carries the screen plate 702 to screen, the unqualified fine material is intercepted at the top of the screen plate 702, and the qualified material enters the bottom of the inner cavity of the inclined bottom screen frame 701 and is discharged through screening and inclined guidance.

[0046] During the rotation of the rotating shaft 704, the rotating shaft 704 synchronously drives the scraper 711 to modify the inner wall of the conical cavity 710, causing the deposited dirt to enter the interior of the annular mud storage tank 707. When there is too much sediment inside the annular mud storage tank 707, it can be extracted by the mud pump 708 and the mud pipe 709.

Claims

1. A raw material processing device for graphite electrode production, comprising a base (1) and a jaw crusher (2), wherein the jaw crusher (2) is fixedly connected to the top of the base (1) by a bracket, characterized in that: A ring hammer crusher (3) is fixedly connected to the top of the base (1) and the bottom of the jaw crusher (2) via a bracket. A separation frame (4) is fixedly connected to the top of the base (1) and the bottom of the ring hammer crusher (3). A dust suppression mechanism (5) adapted to the jaw crusher (2) is provided on the top of the base (1). A water-saving dust suppression mechanism (6) adapted to the ring hammer crusher (3) is provided on the top of the base (1). Multiple separation mechanisms (7) are provided inside the separation frame (4).

2. The raw material processing equipment for graphite electrode production according to claim 1, characterized in that: The dust suppression mechanism (5) includes a first water pump (501), which is fixedly mounted on the top of the base (1) by a bracket. The outlet end of the first water pump (501) is connected to a three-way pipe (502). The two branch pipes of the three-way pipe (502) are respectively connected to a first cluster nozzle (503) and a second cluster nozzle (504). The first cluster nozzle (503) and the second cluster nozzle (504) extend to the interior of the outlet and inlet of the jaw crusher (2), respectively.

3. The raw material processing equipment for graphite electrode production according to claim 1, characterized in that: The water-saving and dust-reducing mechanism (6) includes a water washing frame (601), which is fixedly mounted on the top of the base (1) by a bracket. A perforated chain conveyor belt (602) is installed inside the water washing frame (601). A water storage tank (603) is fixedly connected to one side of the water washing frame (601). A return pipe (604) is connected between the top of the water storage tank (603) and the side of the water washing frame (601), and there are two return pipes (604). A sewage pipe (605) is connected to the front side of the water storage tank (603).

4. The raw material processing equipment for graphite electrode production according to claim 3, characterized in that: A protective cover (606) is fixedly connected to the top of the inlet of the ring hammer crusher (3). A second water pump (607) is fixedly connected to the rear side of the water storage tank (603). The inlet of the second water pump (607) is connected to the water storage tank (603) through a pipe. The outlet end of the second water pump (607) is connected to a water supply main pipe (608). Several spray branch pipes (609) are connected to the top of the water supply main pipe (608), and the spray branch pipes (609) extend into the interior of the protective cover (606).

5. The raw material processing equipment for graphite electrode production according to claim 1, characterized in that: The multi-separation mechanism (7) includes an inclined bottom screen frame (701), which is slidably disposed inside the separation frame (4). A filter plate (702) is fixedly connected inside the inclined bottom screen frame (701). A second motor (703) is fixedly connected to the top of the base (1). The output shaft of the second motor (703) is fixedly connected to a rotating shaft (704) via a coupling. One end of the rotating shaft (704) extends into the interior of the separation frame (4). A cam (705) is fixedly connected to the surface of the rotating shaft (704). A strip frame (706) adapted to the cam (705) is fixedly connected to the bottom of the inclined bottom screen frame (701).

6. The raw material processing equipment for graphite electrode production according to claim 5, characterized in that: The bottom of the inner cavity of the separation frame (4) is provided with an annular mud storage trough (707). Both sides of the separation frame (4) are fixedly connected with mud pumps (708). The inlet of the mud pump (708) is connected to a mud pumping pipe (709). One end of the mud pumping pipe (709) passes through the separation frame (4) and extends into the interior of the annular mud storage trough (707). The interior of the separation frame (4) is provided with a conical cavity (710) that is matched with the annular mud storage trough (707). Several mud scrapers (711) that are adapted to the conical cavity (710) are fixedly connected at equal intervals around the surface of the rotating shaft (704).

7. The raw material processing equipment for graphite electrode production according to claim 3, characterized in that: The front side of the washing frame (601) is connected to a removal pipe (8), and the outlet end of the removal pipe (8) is threadedly connected to a threaded cap (9). The rear side of the washing frame (601) is fixedly connected to a first motor (10). The output shaft of the first motor (10) is fixedly connected to an auger shaft (11) through a coupling, and the end of the auger shaft (11) is rotatably connected to the inner wall of the removal pipe (8) through a bracket. A guide plate (12) is fixedly connected to one side of the inner cavity of the washing frame (601), and a filter plate (13) adapted to the return pipe (604) is installed on the side of the inner cavity of the washing frame (601).

8. The raw material processing equipment for graphite electrode production according to claim 5, characterized in that: Limiting grooves (14) are provided on the front and rear sides of the inner cavity of the separation frame (4). Limiting sliders (15) are slidably connected inside the limiting grooves (14). The opposite sides of the two limiting sliders (15) are fixedly connected to the front and rear sides of the inclined bottom screen frame (701). A water pumping pipe (16) is connected to one side of the separation frame (4).

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