Efficient roller mill for producing fine iron powder

Abstract

The utility model provides an efficient roller mill for producing fine iron powder, which comprises a base, a polisher, a blanking hopper and a feed chute, the base is a hollow frame, the polisher is arranged in the base, the top of the polisher is communicated with the bottom of the blanking hopper, the top of the blanking hopper is connected with the feed chute, and the bottom of the feed chute is provided with a discharge port. A sliding plate is arranged in the sliding groove, a connecting plate is arranged at the bottom of one side of the sliding plate, a sliding sleeve is fixedly arranged at the position, close to the discharging port, of the bottom of the feeding groove, the connecting plate is arranged in the sliding sleeve, and a spring is arranged between the end, close to the discharging port, of the sliding sleeve and the connecting plate; a pull rope is arranged at the other end of the connecting plate and wound around a rotating rod arranged at the output end of a servo motor, and the servo motor is arranged at the end, away from the discharging port, of the sliding sleeve. The sliding plate is arranged at the bottom of the feeding groove, the sliding plate is driven through the servo motor and the spring, the discharging opening is opened or closed, and therefore the discharging amount is automatically controlled.

Description

Technical Field

[0001] The utility model belongs to the technical field of iron ore concentrate production, in particular to a high-efficiency roller mill for iron ore concentrate production. Background Art

[0002] Iron ore concentrate is an important industrial raw material, mainly processed from iron ore through a series of processes such as crushing, grinding, and beneficiation. It has a high iron content, usually above 60%. Iron ore concentrate has a fine texture and is black or dark gray powder. In steel production, iron ore concentrate is one of the main ironmaking raw materials, and its quality directly affects the quality of steel. Iron ore concentrate has a wide range of uses, not only in the steel industry, but also in casting, chemical industry and other fields. With the development of industry, the demand for iron ore concentrate continues to increase, and its production technology is also constantly improving to meet the needs of various industries for high-quality iron ore concentrate. Roller mills are required in the production process of iron ore concentrate.

[0003] Roller mills currently on the market consist of an upper body with a built-in compartment and a feed port, a lower body with a bearing housing, and roller hammers and a fan assembled within the lower body. The roller hammers are located within a compartment near the feed port, each assembled via a pin within a radially open slot on the outer periphery of a roller turntable. The turntable within the roller hammer compartment and the fan within the fan compartment are each mounted on the same drive shaft. However, most existing roller mills require manual unloading, which can lead to equipment overload and shorten equipment lifespan and operational stability. This can also increase energy consumption, labor costs, and the risk of human error, impacting product quality. Regular unloading and maintenance by workers further complicates equipment operation, leading to poor production continuity. Utility Model Content

[0004] In order to solve the problem that the existing roller mill may cause excessive feeding and cause equipment overload, affecting the equipment life and operating stability, while increasing energy consumption, increasing labor costs and being prone to human errors, affecting the consistency of product quality, this paper uses a new type of high-efficiency roller mill for iron ore concentrate production to automatically control the feeding amount, reduce human errors and thus improve production efficiency.

[0005] The utility model is realized through the following technical solutions:

[0006] A high-efficiency roller mill for producing iron ore concentrate comprises a base, a grinder, a lower hopper and a feed chute;

[0007] The base is a hollow frame with a grinder inside. The grinding roller inside the grinder is connected to the output end of the grinding motor; the top of the grinder is connected to the bottom of the lower hopper;

[0008] The top of the lower hopper is connected to a feed trough through supporting legs. The bottom of the feed trough is provided with a discharge port. One side of the discharge port is located in the feed trough body and a sliding groove is provided. The sliding groove is provided with a slide plate, and the bottom of one side of the slide plate is provided with a connecting plate.

[0009] A sliding sleeve is fixedly provided at the bottom of the feed trough near the discharge port, a connecting plate is arranged in the sliding sleeve, a spring is provided between one end of the sliding sleeve near the discharge port and the connecting plate, a pull rope is provided at the other end of the connecting plate and is wound around a rotating rod arranged at the output end of the servo motor, and the servo motor is arranged at the end of the sliding sleeve away from the discharge port.

[0010] The working principle of this utility model is as follows:

[0011] During use, the servo motor is started, and the servo motor drives the rotating rod to rotate and then reel the pull rope around the rotating rod. At this time, the connecting plate is pulled close to the rotating rod, the spring is stretched, and the slide fixed to the connecting plate is retracted into the sliding groove to open the discharge port. The material flows out into the discharge hopper and then enters the grinder for crushing. After the discharge is completed, the servo motor drives the rotating rod to rotate in the opposite direction, and the spring loses its restraint. Under its own elastic force, it drives the slide out of the sliding groove, thereby closing the discharge port. By driving the slide to open and close the material port through the servo motor and spring, automated discharge is achieved, which improves production efficiency, reduces the tediousness and errors of manual operation, ensures the controllability and stability of the discharge process, and reduces unnecessary material waste and the impact on the production environment.

[0012] As a further improvement of the present invention, a screening plate is provided at the bottom of the feed trough below the discharge port, and one end of the screening plate is connected to the output end of the vibration motor through a circular sleeve; a fixing block and a circular sleeve are provided at the bottom of the feed trough near the discharge port, the circular sleeve is used to fix the vibration motor, and a hole is opened inside the fixing block for placing the circular sleeve.

[0013] Preferably, the surface of the sieve plate is provided with a plurality of through holes.

[0014] A screening plate is set below the discharge port, and there are multiple through holes on the screening plate. When the material comes out of the discharge port, it first falls onto the screening plate. Driven by the vibration motor, the screening plate vibrates up and down to break up the material. The broken material falls from the through holes into the lower hopper, avoiding material agglomeration that affects the efficiency of the grinder.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The utility model sets a slide plate at the bottom of the feed chute, which is driven by a servo motor and a spring to open or close the discharge port, thereby realizing automatic control of the discharge amount.

[0017] 2. The utility model sets a screening plate at the bottom of the feed chute to break up the material, so as to prevent the material from agglomerating and entering the lower hopper to cause blockage, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the roller mill of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of the roller mill of the present invention when viewed from above.

[0020] Figure 3 Schematic diagram of the bottom structure of the feed trough.

[0021] Figure 4 for Figure 3 Schematic diagram of the structure at point A in the middle.

[0022] Figure 5 Schematic diagram of the connection structure of the screening plate at the bottom of the feed trough.

[0023] Figure 6 It is a schematic diagram of the cross-sectional structure of the connection between the slide plate and the feed chute.

[0024] Figure markings: 1-base, 2-grinder, 3-lower hopper, 4-feed trough, 41-support leg, 42-discharge port, 43-slide, 44-servo motor, 45-rotating rod, 46-pull rope, 47-spring, 48-slide plate, 49-connecting plate, 5-screening plate, 51-clamping sleeve, 52-fixed block, 53-round sleeve, 54-vibration motor, 6-grinding motor, 7-slide trough. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings. In the embodiments, unless otherwise specified, the technical means used are conventional technical means in the art. Example 1

[0026] like Figure 1 and Figure 2 The high-efficiency roller mill for producing iron ore concentrate shown in the figure comprises a base 1, a grinder 2, a lower hopper 3 and a feed chute 4;

[0027] The base 1 is a hollow frame with a grinder 2 inside. The grinding roller inside the grinder 2 is connected to the output end of the grinding motor 6. The top of the grinder 2 is connected to the bottom of the lower hopper 3.

[0028] like Figure 3 、 Figure 4 and Figure 6As shown, the top of the lower hopper 3 is connected to a feed trough 4 through supporting legs 41 on all sides, and a discharge port 42 is provided at the bottom of the feed trough 4. A sliding groove 7 is provided in the feed trough 4 body on one side of the discharge port 42, and a slide plate 48 is provided in the sliding groove 7. A connecting plate 49 is provided at the bottom of one side of the slide plate 48; a sliding sleeve 43 is fixedly provided at the bottom of the feed trough 4 near the discharge port 42, and the connecting plate 49 is arranged in the sliding sleeve 43. A spring 47 is provided between one end of the sliding sleeve 43 near the discharge port 42 and the connecting plate 49, and a pull rope 46 is provided at the other end of the connecting plate 49 and is wound around a rotating rod 45 arranged at the output end of the servo motor 44. The servo motor 44 is arranged at the end of the sliding sleeve 43 away from the discharge port 42.

[0029] The working principle of this embodiment is as follows:

[0030] During use, the servo motor 44 is started, and the servo motor 44 drives the rotating rod 45 to rotate, thereby winding the pull rope 46 around the rotating rod 45. At this time, the connecting plate 49 is pulled close to the rotating rod, the spring 47 is stretched, and the slide plate 48 fixed to the connecting plate 49 is retracted into the sliding groove 7, so that the discharge port 42 is opened, and the material flows out into the discharge hopper 3 and then enters the grinder 2 for crushing. After the discharge is completed, the servo motor 44 drives the rotating rod 45 to rotate in the opposite direction, and the spring 47 loses its restraint. Under its own elastic force, it drives the slide plate 48 to move out of the sliding groove 7, thereby closing the discharge port 42. By driving the slide plate 48 by the servo motor 44 and the spring 47 to open and close the discharge port 42, automated discharge is achieved, which improves production efficiency, reduces the tediousness and errors of manual operation, ensures the controllability and stability of the discharge process, and reduces unnecessary material waste and the impact on the production environment. Example 2

[0031] This embodiment is a further improvement made on the basis of embodiment 1, and is specifically as follows:

[0032] like Figure 5 As shown, a screening plate 5 is provided at the bottom of the feed trough 4 below the discharge port 42, and one end of the screening plate 5 is connected to the output end of the vibration motor 54 through a circular sleeve 53; a fixing block 52 and a circular sleeve 53 are provided at the bottom of the feed trough 4 near the discharge port 42, the circular sleeve 53 is used to fix the vibration motor 54, and a hole is opened inside the fixing block 52 for placing the circular sleeve 53.

[0033] The surface of the screening plate 5 is provided with a plurality of through holes.

[0034] The working principle of this embodiment is the same as that of embodiment 1. A screening plate 5 is provided below the discharge port 42. The screening plate 5 is provided with a plurality of through holes. When the material comes out of the discharge port 42, it first falls onto the screening plate 5. The screening plate 5 vibrates up and down under the drive of the vibration motor 54 to break up the material. The broken material falls from the through holes into the lower hopper 3, thereby avoiding material agglomeration that affects the efficiency of the grinder.

[0035] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention. The scope of protection of the present invention is defined by the claims. Persons skilled in the art may make various modifications or equivalent substitutions to the present invention within the spirit and scope of protection of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present invention.

Claims

1. A high-efficiency roller mill for producing iron ore concentrate, characterized by: It includes a base (1), a grinder (2), a lower hopper (3) and a feed trough (4); The base (1) is a hollow frame, and a grinder (2) is provided inside the grinder (2). The grinding roller inside the grinder (2) is connected to the output end of the grinding motor (6); the top of the grinder (2) is connected to the bottom of the lower hopper (3); The top of the lower hopper (3) is connected to a feed trough (4) via supporting legs (41) on all sides. A discharge port (42) is provided at the bottom of the feed trough (4). A sliding groove (7) is provided on one side of the discharge port (42). A slide plate (48) is provided in the sliding groove (7). A connecting plate (49) is provided at the bottom of one side of the slide plate (48). A sliding sleeve (43) is fixedly provided at the bottom of the feed trough (4) near the discharge port (42), a connecting plate (49) is arranged in the sliding sleeve (43), a spring (47) is provided between one end of the sliding sleeve (43) near the discharge port (42) and the connecting plate (49), a pull rope (46) is provided at the other end of the connecting plate (49) and is wound around a rotating rod (45) arranged at the output end of the servo motor (44), and the servo motor (44) is arranged at one end of the sliding sleeve (43) away from the discharge port (42).

2. The high-efficiency roller mill for producing iron ore concentrate according to claim 1, characterized in that: The bottom of the feed trough (4) is provided with a screening plate (5) below the discharge port (42), and one end of the screening plate (5) is sleeved on the output end of the vibration motor (54) through a circular sleeve (53); a fixing block (52) and a circular sleeve (53) are provided at the bottom of the feed trough (4) near the discharge port (42), the circular sleeve (53) is used to fix the vibration motor (54), and a hole is opened inside the fixing block (52) for placing the circular sleeve (53).

3. The high-efficiency roller mill for producing iron ore concentrate according to claim 2, characterized in that: The surface of the screening plate (5) is provided with a plurality of through holes.

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