Automatic feeding device for slag vertical mill

Abstract

The utility model relates to the technical field of mechanical manufacturing, in particular to an automatic feeding device for a slag vertical mill, which comprises a discharging mechanism, a feeding pipe and a rotary discharging valve, the feeding pipe is obliquely arranged, the lower end of the feeding pipe is positioned in the vertical mill, and the rotary discharging valve is arranged at the lower end of the feeding pipe. The discharging mechanism comprises a hopper, a discharging pipe and a vibration discharging assembly, the discharging pipe is fixedly connected to the end, located outside the vertical mill, of the feeding pipe, the lower end of the discharging pipe is communicated with the feeding pipe, a discharging port of the hopper is fixedly connected to the upper end of the discharging pipe, and the vibration discharging assembly is arranged at the bottom of the hopper. The device has the beneficial effects that slag is fed into the hopper through the conveying device, and the slag in the hopper is primarily dispersed by the vibration discharging device and then enters the feeding pipe through the blanking pipe, so that the bonding condition of the slag can be improved, and the slag is prevented from blocking the feeding pipe; discharging is conducted through the rotary discharging valve, the rotary discharging valve is not prone to being blocked, the sealing effect can be achieved, and an air locking valve does not need to be additionally arranged.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical manufacturing, in particular to an automatic feeding device for a slag vertical mill. Background Art

[0002] Slag can be ground into ultra-fine powder by vertical mill and then recycled as raw material for building materials. At present, slag is usually sent to the air lock valve through a conveyor, and then enters the vertical mill through the inclined flow channel pipeline by the impact of the slag itself. The slag has a high water content and also contains calcium oxide, magnesium oxide and other components. It has strong viscosity and is easy to agglomerate, causing blockage of the flow channel and affecting production.

[0003] The Chinese utility model patent with the authorization announcement number CN208814064U discloses a feeding device, including a screw conveyor, the housing of the screw conveyor is connected to two half flanges by welding, the two half flanges are connected to the flanged cylinder by welding through a bolt pair, the flanged cylinder is connected to the housing in the mill by welding, the inner diameter of the housing in the mill is larger than the outer diameter of the housing of the screw conveyor, the housing of the screw conveyor is also welded to the lower cone bucket of the powder selector, the head and tail ends of the screw conveyor are respectively provided with fixed bases, the fixed bases are fixed on the support frame, one end of the screw conveyor is provided with a feed port, and the other end is provided with a drop port. The application uses a screw conveyor for feeding, which is easy to be blocked when conveying materials with strong viscosity and good hygroscopicity, and is easy to heat up after long-term operation. Utility Model Content

[0004] The utility model aims to provide an automatic feeding device for a slag vertical mill which has a simple structure and is not prone to clogging. In view of the above-mentioned shortcomings of the prior art, an automatic feeding device for a slag vertical mill is proposed.

[0005] An automatic feeding device for a slag vertical mill comprises a feeding mechanism, a feeding pipe and a rotary discharging valve, wherein the feeding pipe is arranged at an angle, and the lower end of the feeding pipe is located in the vertical mill, and the rotary discharging valve is arranged at the lower end of the feeding pipe. The feeding mechanism comprises a hopper, a feeding pipe and a vibrating discharging assembly, wherein the feeding pipe is fixedly connected to an end of the feeding pipe located outside the vertical mill, and the lower end of the feeding pipe is communicated with the feeding pipe, and the discharge port of the hopper is fixedly connected to the upper end of the feeding pipe, and the vibrating discharging assembly is arranged at the bottom of the hopper, and is used for dispersing the slag in the hopper and dropping it into the feeding pipe.

[0006] By adopting the above technical solution: the slag is sent into the hopper through the conveying device, and the vibrating discharging device preliminarily disperses the slag in the hopper and then enters the feed pipe through the discharge pipe, which can improve the adhesion of the slag and avoid clogging the feed pipe with slag; the material is discharged through the rotary discharge valve, which is not easy to be blocked and can play a sealing role, without the need to set up an additional air lock valve.

[0007] The above technical solution is further configured as follows: the vibration discharging assembly includes a vibration discharging plate, a support frame and a vibration motor, the vibration discharging plate is an inverted V-shape, the upper end of the vibration discharging plate is located in the hopper, and the lower end is located in the discharge pipe, a discharge channel is formed between the two sides of the vibration discharging plate and the inner wall of the discharge pipe, the support frame is fixedly connected in the discharge pipe, the bottom of the vibration discharging plate is fixedly connected to the support frame through a spring, and the vibration motor is fixedly connected to the bottom of the vibration discharging plate.

[0008] By adopting the above technical solution: the vibrating discharge plate is an inverted V-shape, and when the vibration motor drives the vibrating discharge plate to vibrate, the upper end of the vibrating discharge plate stirs the slag in the hopper, causing the slag to fall along both sides of the vibrating discharge plate, and continuously vibrates on the vibrating discharge plate during the falling process, thereby dispersing the slag.

[0009] The above technical solution is further configured as follows: a scraper mechanism is provided in the feed pipe for moving the slag toward the direction of the rotary discharge valve.

[0010] By adopting the above technical solution: by setting a scraper mechanism, the feeding rate of the feed pipe can be increased, and at the same time, slag can be prevented from blocking the feed pipe.

[0011] The above technical solution is further configured as follows: the scraper mechanism includes a sprocket, a chain, a plurality of scrapers and a driving member, the chain is wound around the sprocket, the scraper is fixedly connected to the chain, and the driving member is arranged outside the feed pipe to drive the sprocket to rotate.

[0012] The above technical solution is further configured as follows: the scraper can contact the bottom of the discharge pipe.

[0013] The above technical solution is further configured as follows: a spray head is provided in the feed pipe for cleaning the scraper, and a water inlet pipe is connected to the spray head.

[0014] By adopting the above technical solution: a spray head is arranged in the feed pipe to clean the scraper to prevent slag from sticking to the scraper, and the scraper can also be cooled.

[0015] The above technical solution is further configured as follows: the spray head is located on the side of the discharge pipe away from the rotary discharge valve.

[0016] The above technical solution is further configured as follows: a water outlet is provided on the bottom surface of the feed pipe, and the water outlet is located below the spray head.

[0017] By adopting the above technical solution: this arrangement can ensure that there is no slag in the discharge pipe below the spray head, which is beneficial for cleaning the scraper on the one hand, and on the other hand, the spray water is directly discharged from the water outlet without entering the slag, avoiding affecting the subsequent drying of the slag in the vertical mill.

[0018] The beneficial effects of the present utility model are as follows:

[0019] 1. The slag is fed into the hopper through the conveying device. The vibrating discharging device preliminarily disperses the slag in the hopper and then enters the feeding pipe through the blanking pipe, which can improve the bonding situation of the slag and avoid the blockage of the feeding pipe by the slag. The discharging is carried out through the rotary discharging valve, which is not easily blocked and can play a sealing role, eliminating the need for an additional air lock valve.

[0020] 2. The vibrating discharging plate is in an inverted V shape. When the vibrating motor drives the vibrating discharging plate to vibrate, the upper end of the vibrating discharging plate stirs the slag in the hopper, causing the slag to fall along both sides of the vibrating discharging plate. During the falling process, the slag continuously vibrates on the vibrating discharging plate, thereby dispersing the slag.

[0021] 3. A spray head is arranged in the feeding pipe to clean the scraper, preventing the slag from adhering to the scraper and also cooling the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the structure of the utility model.

[0023] Figure 2 Schematic diagram of the structure of the vibrating discharging assembly of the present utility model.

[0024] In the figure, 1, blanking mechanism; 11, blanking pipe; 12, hopper; 13, vibrating discharging assembly; 131, vibrating discharging plate; 132, blanking channel; 133, support frame; 134, spring; 135, vibrating motor; 2, feeding pipe; 3, rotary discharging valve; 4, scraper mechanism; 41, sprocket; 42, chain; 43, scraper; 5, spray head; 6, water outlet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following are specific embodiments of the present utility model in combination with the drawings, further describing the technical solutions of the present utility model, but the present utility model is not limited to these embodiments.

[0026] Embodiment 1

[0027] An automatic feeding device for a slag vertical mill, as Figure 1 shown, includes a blanking mechanism 1, a feeding pipe 2 and a rotary discharging valve 3. The feeding pipe 2 is inclined and arranged on the vertical mill. The lower end of the feeding pipe 2 is located inside the vertical mill. The rotary discharging valve 3 is located at the lower end of the feeding pipe 2. The discharging is carried out through the rotary discharging valve 3, which is not easily blocked and can play a sealing role, eliminating the need for an additional air lock valve.

[0028] One end of the feed pipe 2 located outside the vertical mill is provided with a blanking mechanism 1. The blanking mechanism 1 includes a blanking pipe 11, a hopper 12 and a vibrating discharging assembly 13. The lower end of the blanking pipe 11 is communicated with the feed pipe 2. There is a discharging port below the hopper 12, and the discharging port is fixedly connected to the upper end of the blanking pipe 11. The vibrating discharging assembly 13 is arranged at the bottom of the hopper 12 and is used for dispersing the slag in the hopper 12 and then falling into the blanking pipe 11. The slag is sent into the hopper 12 through a conveying device. The vibrating discharging device preliminarily disperses the slag in the hopper 12 and then enters the feed pipe 2 through the blanking pipe 11, which can improve the bonding condition of the slag and avoid the blockage of the feed pipe 2 by the slag.

[0029] Embodiment 2

[0030] As Figure 2 shown, the vibrating discharging assembly 13 includes an inverted V-shaped vibrating discharging plate 131. The upper end of the vibrating discharging plate 131 is located in the hopper 12, and the lower end is located in the blanking pipe 11. A blanking channel 132 is formed between both sides of the vibrating discharging plate 131 and the inner wall of the blanking pipe 11. A support frame 133 is fixedly connected in the blanking pipe 11. The vibrating discharging plate 131 is fixedly connected to the support frame 133 through a spring 134. A vibrating motor 135 is fixedly connected to the bottom of the vibrating discharging plate 131. When the vibrating motor 135 drives the vibrating discharging plate 131 to vibrate, the upper end of the vibrating discharging plate 131 stirs the slag in the hopper 12, so that the slag falls along both sides of the vibrating discharging plate 131 and continuously vibrates on the vibrating discharging plate 131 during the falling process, thereby dispersing the slag.

[0031] Embodiment 3

[0032] A scraping mechanism 4 is arranged in the feed pipe 2. The scraping mechanism 4 includes a sprocket 41 rotatably connected to the feed pipe 2. A chain 42 is wound around the sprocket 41. There are two parallel chains 42. A rotating motor is fixedly connected outside the feed pipe 2, and the rotating motor drives the sprocket 41 to rotate. A plurality of scrapers 43 are fixedly connected to the two chains 42, and the chains 42 drive the scrapers 43 to move along the inner wall of the feed pipe 2. When the scraper 43 rotates to the lower part, the bottom of the scraper 43 is in contact with the inner wall of the feed pipe 2, and the slag in the feed pipe 2 is pushed downward.

[0033] A spray head 5 is further arranged in the feed pipe 2. A water inlet pipe is connected to the spray head 5 and is used for cleaning the scraper 43 to avoid the adhesion of slag to the scraper 43 and can also cool the scraper 43. The spray head 5 is located on the side of the blanking pipe 11 away from the rotary discharge valve 3. A water outlet 6 is arranged on the bottom surface of the blanking pipe 11, and the water outlet 6 is located below the spray head 5. Through this setting, there is no slag at the outlet of the discharge pipe below the spray head 5. On the one hand, it is beneficial to clean the scraper 43, and on the other hand, the sprayed water directly discharges from the water outlet 6 and does not enter the slag, avoiding affecting the drying of the subsequent slag in the vertical mill.

[0034] Where not otherwise involved, it shall apply to the prior art.

[0035] Although some specific embodiments of the present utility model have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration purposes and not for limiting the scope of the present utility model. Those skilled in the technical field to which the present utility model pertains can make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the direction of the present utility model or exceed the scope defined by the appended claims. Those skilled in the art should understand that any modifications, equivalent substitutions, improvements, etc. made to the above embodiments based on the technical essence of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An automatic feeding device for a slag vertical mill, characterized in that: The invention comprises a discharge mechanism (1), a feed pipe (2) and a rotary discharge valve (3), wherein the feed pipe (2) is arranged at an angle, and the lower end of the feed pipe (2) is located inside a vertical mill, and the rotary discharge valve (3) is arranged at the lower end of the feed pipe (2). The discharge mechanism (1) comprises a hopper (12), a discharge pipe (11) and a vibrating discharge assembly (13), wherein the discharge pipe (11) is fixedly connected to one end of the feed pipe (2) located outside the vertical mill, and the lower end of the discharge pipe (11) is connected to the feed pipe (2), the discharge port of the hopper (12) is fixedly connected to the upper end of the discharge pipe (11), and the vibrating discharge assembly (13) is arranged at the bottom of the hopper (12).

2. The automatic feeding device for a slag vertical mill according to claim 1, characterized in that: The vibration discharge assembly (13) comprises a vibration discharge plate (131), a support frame (133) and a vibration motor (135); the vibration discharge plate (131) is inverted V-shaped; the upper end of the vibration discharge plate (131) is located in the hopper (12), and the lower end is located in the discharge pipe (11); a discharge channel (132) is formed between the two sides of the vibration discharge plate (131) and the inner wall of the discharge pipe (11); the support frame (133) is fixedly connected in the discharge pipe (11); the bottom of the vibration discharge plate (131) is fixedly connected to the support frame (133) via a spring (134); and the vibration motor (135) is fixedly connected to the bottom of the vibration discharge plate (131).

3. The automatic feeding device for a slag vertical mill according to claim 1, characterized in that: The feed pipe (2) is provided with a scraper mechanism (4) for moving the slag in the direction of the rotary discharge valve (3).

4. The automatic feeding device for a slag vertical mill according to claim 3, characterized in that: The scraper mechanism (4) comprises a sprocket (41), a chain (42), a plurality of scrapers (43) and a driving member, wherein the chain (42) is wound around the sprocket (41), the scrapers (43) are fixedly connected to the chain (42), and the driving member is arranged outside the feed pipe (2) and is used to drive the sprocket (41) to rotate.

5. The automatic feeding device for a slag vertical mill according to claim 4, characterized in that: The scraper (43) located below the chain (42) contacts the bottom of the discharge pipe (11).

6. The automatic feeding device for a slag vertical mill according to claim 3, characterized in that: A spray head (5) is provided in the feed pipe (2) for cleaning the scraper (43), and a water inlet pipe is connected to the spray head (5).

7. The automatic feeding device for the slag vertical mill according to claim 6, wherein: The spray head (5) is located on a side of the discharge pipe (11) away from the rotary discharge valve (3).

8. The automatic feeding device for the slag vertical mill according to claim 6, characterized in that: The bottom surface of the feed pipe (11) is provided with a water outlet (6), and the water outlet (6) is located below the spray head (5).

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