Material weighing equipment for steel slag production

Abstract

The utility model provides material weighing equipment for steel slag production, and relates to the field of steel slag fine powder storage equipment, the material weighing equipment comprises pneumatic conveying equipment and a stock bin, the stock bin comprises a feed hopper and a discharge port, the feed hopper and the discharge port are both provided with valves, the discharge end of the pneumatic conveying equipment is located above the feed hopper of the stock bin, and the discharge end of the pneumatic conveying equipment is located above the discharge port of the stock bin. The device further comprises a weighing device, a telescopic piece, a blocking shell, a through hole and a material level sensor. According to the device, automatic injection of fine steel slag powder into the stock bin can be achieved, the material level is accurately limited in the injection process so that the probability of powder overflow and waste can be reduced, meanwhile, after injection is completed, the injection weight of the steel slag powder can be weighed in real time, and then follow-up workers can check and obtain data conveniently; and the storage and injection process of the fine steel slag powder is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of steel slag fine powder storage equipment, and more specifically, to a material weighing device for steel slag production. Background Technology

[0002] Steel slag is a waste product generated in the metallurgical industry. With the rapid development of the steel industry, China's steel slag production has increased rapidly. Therefore, the treatment and resource utilization of waste slag from steel enterprises has received increasing attention.

[0003] Currently, steel slag is processed into fine powder through a series of ultrafine grinding processes. The powder then needs to be stored in a silo for collection. Most existing methods use pneumatic conveying equipment to transfer the powder to the silo. Although this achieves automated feeding, the feeding amount is not easy to control, which can easily lead to powder overflow and waste. At the same time, the weight of the silo cannot be obtained in time. Therefore, the storage process of fine steel slag powder needs to be optimized. Utility Model Content

[0004] The purpose of this utility model is to solve the problems mentioned in the background art and to propose a material weighing device for steel slag production.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A material weighing device for steel slag production includes a pneumatic conveying device and a silo. The silo includes a feed hopper and a discharge port, both of which are equipped with valves. The end pipeline of the pneumatic conveying device is located directly above the feed hopper of the silo. The device also includes a weighing device, a telescopic component, a sealing shell, a through hole, and a material level sensor.

[0007] The weighing equipment is fixed at the bottom of the silo;

[0008] Expansion joints are symmetrically installed on the end pipeline of the pneumatic conveying equipment;

[0009] The main body is cylindrical and open at one end. The sealing shell is connected to a telescopic component and has a through hole on the sealing end of the sealing shell with the same diameter as the end pipe of the pneumatic conveying equipment. The size of the sealing shell is the same as the size of the feed hopper of the silo.

[0010] The material level sensor is installed inside the silo.

[0011] Furthermore, the interior of the sealing shell is provided with annular filter screens spaced apart from the through holes.

[0012] The above solution can effectively adsorb dust that diffuses into the sealing shell during the injection process through the ring filter. The ring filter can be replaced regularly to reduce the probability of dust overflow.

[0013] Furthermore, it also includes a base and several hoppers. A rotating roller is rotatably connected to the base and the rotating roller is connected to a drive assembly fixed on the base. One end of the rotating roller is connected to a placement platform. Several placement slots adapted to the size of the weighing equipment are opened around the circumference of the placement platform. The weighing equipment is fixed in the placement slot and the end pipe of the pneumatic conveying equipment is located directly above one of the placement slots.

[0014] Furthermore, the drive assembly employs gear transmission.

[0015] The above scheme realizes the automatic alternating movement of several silos, thereby sequentially performing the processes of filling, testing, and weighing several silos.

[0016] Furthermore, the material level sensor is an ultrasonic material level sensor and is installed at the top inside the silo.

[0017] Furthermore, a rubber ring is provided on the open end face of the sealing shell.

[0018] The above solution uses a rubber ring to avoid wear caused by hard contact between the sealing shell and the feed hopper of the hopper, and also improves the sealing effect after the two are joined.

[0019] Furthermore, the hopper is equipped with lifting rings.

[0020] The above solution facilitates the automatic loading and unloading of materials from the hopper using lifting rings.

[0021] Furthermore, it also includes a display screen that is electrically connected to the weighing equipment and fixed on the hopper.

[0022] The above solution can display the weight of fine steel slag powder in each hopper in real time via a display screen.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] Compared with existing technologies, this device can automatically feed fine steel slag powder into the silo, and accurately limit the material level during the feeding process to reduce the probability of powder overflow and waste. At the same time, the feeding weight of the steel slag powder can be weighed in real time after the feeding is completed, so that the staff can view and obtain data. The storage and feeding process of fine steel slag powder is effectively improved. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the material level sensor installation.

[0027] Figure 3 This is a schematic diagram of the placement slot;

[0028] Figure 4 This is a schematic diagram of the sealing shell;

[0029] Figure label:

[0030] 1. Pneumatic conveying equipment; 2. Hopper; 3. Base; 4. Rotating roller; 5. Drive assembly; 6. Placement platform; 7. Placement trough; 8. Weighing equipment; 9. Telescopic component; 10. Sealing shell; 11. Through hole; 12. Material level sensor. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments:

[0032] like Figures 1 to 4 As shown, a material weighing device for steel slag production includes a pneumatic conveying device 1 (the pneumatic conveying device 1 is prior art and no improvement is made) and a hopper 2. The hopper 2 includes a feed hopper and a discharge port, and both the feed hopper and the discharge port are equipped with valves (the valves are not labeled in the figure and are solenoid valves). The end pipe of the pneumatic conveying device 1 is located directly above the feed hopper of the hopper 2. The device also includes a weighing device 8, a telescopic component 9, a sealing shell 10, a through hole 11, and a material level sensor 12.

[0033] The weighing device 8 is fixed at the bottom of the silo 2 and the center of the weighing device 8 is on the same straight line as the center of the silo 2 (the weighing device is existing technology and its principle is not described. A large-capacity weighing scale can be used).

[0034] The telescopic components 9 are symmetrically arranged on the end pipeline of the pneumatic conveying equipment 1;

[0035] The sealing shell 10, which is cylindrical in shape and open at one end, is connected to a telescopic component 9. The sealing end of the sealing shell 10 is provided with a through hole 11 that is the same diameter as the end pipe of the pneumatic conveying device 1. The size of the sealing shell 10 is the same as the size of the feed hopper of the silo 2.

[0036] The material level sensor 12 is installed inside the hopper 2 (specifically, the material level sensor 12 is an ultrasonic material level sensor 12 and is installed at the top inside the hopper 2).

[0037] Further optimizations to the embodiments of this utility model, such as... Figure 1 and Figure 3As shown, it also includes a base 3 and several hoppers 2. A rotating roller 4 is rotatably connected to the base 3 and the rotating roller 4 is connected to a drive assembly 5 fixed on the base 3. One end of the rotating roller 4 is connected to a placement platform 6. Several placement slots 7 adapted to the size of the weighing device 8 are opened on the circumference of the placement platform 6. The weighing device 8 is fixed in the placement slot 7 and the end pipe of the pneumatic conveying device 1 is located directly above one of the placement slots 7. Specifically, the drive assembly 5 adopts gear transmission. The gear transmission method is an existing technology principle and will not be described.

[0038] In a further optimization of the above embodiment, a lifting ring is provided on the hopper 2, which is not shown in the figure.

[0039] A further refinement of the embodiment of this utility model includes a display screen that is electrically connected to the weighing device 8 and fixed on the hopper 2. The display screen is not shown in the figure.

[0040] It should be noted that the pneumatic conveying device 1, drive assembly 5, weighing device 8, telescopic component 9, material level sensor 12, and display screen are all electrically connected to the controller, which is not shown in the figure.

[0041] The working process of this utility model:

[0042] First, the fine steel slag powder after ultrafine grinding is conveyed through the pneumatic conveying device 1 (at this time, the feed hopper of the silo 2 is directly below the end pipe of the pneumatic conveying device 1). At the same time, the controller controls the telescopic component 9 to work, thereby driving the sealing shell 10 to move down. When the open end face of the sealing shell 10 contacts the feed hopper, the telescopic component 9 stops working. At this time, the steel slag powder can be automatically injected into the silo 2, and the amount of dust overflow is effectively reduced during the injection process. As the steel slag powder is continuously injected, the material accumulation height in the silo 2 will gradually increase. When the powder accumulation height in the silo 2 reaches the upper limit set in the material level sensor 12, the material level sensor 12 will send a signal to the controller. Then the controller controls the pneumatic conveying device 1 to stop working. At the same time, the weighing device 8 can weigh the current material weight in the silo 2 and send the feedback to the controller. Finally, the weight is displayed on the screen for quick knowledge (when there is no fine steel slag powder initially stored, the weighing device 8 is set to zero).

[0043] Based on this, a base 3, a rotating roller 4, a drive assembly 5, and a placement platform 6 are added to automatically and alternately fill multiple hoppers 2. The placement trough 7 is adapted to the size of the weighing device 8. Several hoppers 2 are placed in the placement trough 7 in advance and the weighing device 8 is zeroed. After the filling and weighing of one hopper 2 are completed, the telescopic component 9 drives the sealing shell 10 away from the feed hopper of the current hopper 2. Then, the position of the hopper 2 can be automatically changed so that the next empty hopper 2 moves to the bottom of the end pipe of the pneumatic conveying device 1. Then, repeat the above description to start a new round of fine steel slag powder filling and storage process. The controller is pre-set so that the drive assembly 5 can accurately move the feed hopper of one of the hoppers 2 to the bottom of the end pipe of the pneumatic conveying device 1 every time it works. Then, the hopper 2 can be unloaded and transferred by the hoisting equipment and the lifting ring.

[0044] Compared with existing technologies, this device can automatically feed fine steel slag powder into the silo 2, and accurately limit the material level during the feeding process to reduce the probability of powder overflow and waste. At the same time, the feeding weight of the steel slag powder can be weighed in real time after the feeding is completed, so that the staff can view and obtain data. The storage and feeding process of fine steel slag powder is effectively improved.

[0045] In some embodiments, such as Figure 4 As shown, the sealing shell 10 is provided with annular filters that are spaced apart from the through holes 11. In this embodiment, the annular filters can effectively adsorb the dust that diffuses into the sealing shell 10 during the injection process. The annular filters can be replaced periodically to reduce the probability of dust overflow.

[0046] In a further optimization of the above embodiment, a rubber ring is provided on the open end face of the sealing shell 10, which is not shown in the figure. This embodiment can avoid wear caused by hard contact between the sealing shell 10 and the feed hopper of the hopper 2 through the rubber ring, and also improves the sealing effect after the two are connected.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A material weighing device for steel slag production, comprising a pneumatic conveying device (1) and a bin (2), the bin (2) comprising a feeding hopper and a discharge port, and a valve is arranged on each of the feeding hopper and the discharge port, and the terminal pipeline of the pneumatic conveying device (1) is located directly above the feeding hopper of the bin, characterized in that, the feeding hopper of the bin is provided with a weighing device (3) and a feeding device (4), the feeding device (4) is arranged on the weighing device (3), and the feeding device (4) is connected with the terminal pipeline of the pneumatic conveying device (1). It also includes a weighing device (8), an expansion piece (9), a blocking shell (10), a through hole (11) and a material level sensor (12), The weighing device (8) is fixed at the bottom of the silo (2); The expansion piece (9) is symmetrically arranged on the terminal pipeline of the pneumatic conveying device (1); The blocking shell (10) is cylindrical in shape and has an open end, and the expansion piece (9) is connected to the blocking shell (10), and a through hole (11) with the same diameter as the terminal pipeline of the pneumatic conveying device (1) is arranged on the blocking end of the blocking shell (10), and the size of the blocking shell (10) is consistent with the size of the feeding hopper of the silo (2); The material level sensor (12) is arranged inside the silo (2).

2. The material weighing device for steel slag production according to claim 1, characterized in that, The inside of the blocking shell (10) is provided with an annular filter screen (13) spaced apart from the through hole (11).

3. The material weighing device for steel slag production according to claim 1, characterized in that, It also includes a base (3) and a plurality of silos (2), the base (3) is rotatably connected with a rotating roller (4), and the rotating roller (4) is connected with a driving assembly (5) fixed on the base (3), one end of the rotating roller (4) is connected with a placing table (6), a plurality of placing grooves (7) with the size of the weighing device (8) are circumferentially arranged on the placing table (6), the weighing device (8) is fixed in the placing groove (7), and the terminal pipeline of the pneumatic conveying device (1) is located directly above one of the placing grooves (7).

4. The material weighing device for steel slag production according to claim 3, characterized in that, The driving assembly (5) adopts gear transmission.

5. The material weighing device for steel slag production according to claim 1, characterized in that, The material level sensor (12) is an ultrasonic material level sensor and is arranged at the top end of the silo (2).

6. The material weighing device for steel slag production according to claim 1, characterized in that, A rubber ring is arranged on the end face of the open end of the blocking shell (10).

7. The material weighing device for steel slag production according to claim 1, characterized in that, A lifting ring is arranged on the silo (2).

8. The material weighing device for steel slag production according to claim 1, characterized in that, It also includes a display screen electrically connected with the weighing device (8) and fixed on the silo (2).

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