Powdery material batching system

Abstract

The utility model discloses a powdery material batching system, the powdery material batching system comprises a stock bin, a feeder, a buffer steady flow device and a belt weigher which are arranged in sequence from top to bottom, the buffer steady flow device comprises a buffer bin, a weighing module and a material flow shaping mechanism, the inlet end of the buffer bin is connected with the feeder, and the weighing module is connected with the belt weigher. The outlet end of the surge bin is located above the belt weigher at an interval, the outlet end of the surge bin is provided with a material leveling opening, the material leveling opening is located over the running direction of the belt weigher, and the material flow shaping mechanism is rotationally connected to the outer wall of the surge bin and surrounds the material leveling opening to shape and compact materials discharged from the material leveling opening. According to the powdery material batching system disclosed by the utility model, the buffering and flow stabilizing device is arranged between the feeder and the belt weigher to buffer and shape powdery materials, so that the shape of the material flow discharged to the belt weigher is kept in a stable state, and the impact of the material flow falling on the conveying belt and the influence of the material flow collapse on the batching system are reduced.

Description

Technical Field

[0001] The utility model relates to the field of iron ore sintering, in particular to a powder material batching system. Background Art

[0002] In the field of iron ore sintering, the sintering mixture is composed of a mixture of iron ore powder, fuel, flux, quicklime, light-burned dolomite, return ore, dust and other materials. Quicklime, light-burned dolomite and dust are dry fine-grained powder materials, which are important components of sintering raw materials and play a very important role in the iron ore sintering process. In order to ensure the quality of the sintered finished ore, the sintering raw materials are required to be accurately prepared in strict accordance with the production process ratio requirements. Therefore, in production, stabilizing the ratio of each material component is of great significance to improving the quality of sintered ore. At present, the mass batching method is generally used in the preparation of sintering mixtures. The batching system automatically and accurately batches according to the quality according to the ratio requirements and in a continuous and stable manner. The batching electronic belt scale is a key component in the batching system. When adverse factors affect the batching electronic belt scale, the measurement accuracy of the batching system will be reduced, thereby affecting the stability of the batching ratio.

[0003] In the related art, the batching form of quicklime, dust, light-burned dolomite and other fine-grained powder materials in the sintering mixture mostly adopts the batching process of impeller feeder + batching electronic belt scale. The powdered material is fed by the impeller feeder and directly enters the batching electronic belt scale. After being measured by the batching system, it is mixed with other materials after proportioning to form a sintering mixture. Among them, the impeller of the impeller feeder is divided into multiple cavity structures. The material enters the impeller cavity from the upper feed port and falls from the lower discharge port to the conveyor belt of the batching electronic belt scale as the impeller rotates. The impeller of the impeller feeder is a rotating feeder, not a strict continuous feeder, which causes the material flow on the batching electronic belt scale to fluctuate, thus forming a non-uniform conveying phenomenon, resulting in a reduction in the weighing accuracy of the batching electronic belt scale, which in turn affects the stability of the proportioning accuracy of the entire sintering mixture. In addition, the discharge port of the impeller feeder is at a certain height from the belt surface of the electronic belt scale for batching. The material flow falls directly onto the belt, impacting the belt surface, causing the belt tension of the electronic belt scale for batching to change. At the same time, during the transportation of powdered materials, the material flow collapses naturally due to impact and vibration. Changes in belt tension, material flow collapse, vibration and other factors will affect the accuracy of the metering results of the batching system, thereby affecting the stability of the ratio accuracy of the entire sintering mixture.

[0004] In view of this, it is necessary to propose a powder material batching system to solve the above-mentioned defects. Utility Model Content

[0005] The main purpose of the utility model is to provide a powder material batching system, aiming to solve the problem that the existing direct feeding through an impeller feeder causes the material flow to be in an ups and downs state, resulting in uneven material transportation and reduced weighing accuracy of the belt scale, which affects the entire batching system and makes the batching accuracy.

[0006] To achieve the above-mentioned purpose, the utility model provides a powder material batching system, including a silo, a feeder, a buffer and flow stabilizing device and a belt scale which are arranged in sequence from top to bottom, the buffer and flow stabilizing device including a buffer silo, a weighing module and a material flow shaping mechanism, the inlet end of the buffer silo is connected to the feeder, the outlet end of the buffer silo is located above the belt scale at intervals, the material enters the buffer silo from the feeder for temporary storage and is then discharged onto the belt scale, a flat material port is provided at the outlet end of the buffer silo, the flat material port is located directly above the running direction of the belt scale, the material flow shaping mechanism is rotatably connected to the outer wall of the buffer silo, and is semi-enclosed and enclosed outside the flat material port to shape and compact the material discharged from the flat material port.

[0007] Preferably, the material flow shaping mechanism includes a flat material plate, a baffle and an adapter, the flat material plate is rotatably connected to the outer wall of the buffer bin through the adapter, and the flat material plate is located directly above the flat material port, the baffle is located on both sides of the flat material plate and forms a semi-enclosed structure with the flat material plate to enclose the outside of the flat material port.

[0008] Preferably, the adapter is a hinge.

[0009] Preferably, the material flow shaping mechanism further comprises a counterweight block, and the counterweight block is mounted on the flat material plate.

[0010] Preferably, the buffer bin comprises a frame, a flexible connector, a bin body and a weighing module, the bin body is fixed on the frame, the flexible connector is arranged at the inlet end of the bin body and connected to the outlet end of the feeder, and the weighing module is installed on the bin body.

[0011] Preferably, there are multiple weighing modules, an outer ring protrudes outward from the circumference of the warehouse body, and multiple weighing modules are installed on the frame and evenly distributed around the outer ring for weighing the warehouse body.

[0012] Preferably, the flexible connection piece is a corrugated compensating tube.

[0013] Preferably, the warehouse body is funnel-shaped.

[0014] Preferably, the weighing module is a weight sensor.

[0015] Preferably, there are three or four weighing modules.

[0016] Compared with the prior art, the powder material batching system provided by the utility model has the following beneficial effects:

[0017] The utility model provides a powder material batching system to buffer and shape the material by arranging a buffering and stabilizing flow device between the feeder and the belt scale, wherein the buffer bin is arranged between the feeder and the belt scale for caching the material discharged from the feeder, and the material temporarily stored in the buffer bin can be discharged smoothly onto the belt scale, thereby reducing the impact of the material on the conveyor belt of the belt scale, causing the tension of the conveyor belt to change, and affecting the accuracy of the weighing result of the belt scale, and the material flow shaping mechanism installed on the buffer bin shapes and compacts the material discharged from the flat material port, so that the powder material can maintain a stable state when it flows to the belt scale, and the continuity, uniformity and fluctuation amplitude of the powder material flow are significantly improved, reducing the influence of the material flow tower falling on the weighing of the belt scale, thereby reducing the influence of the material flow on the entire batching system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of the powder material batching system provided by the utility model;

[0020] Figure 2 for Figure 1 The structural schematic diagram of the buffer bin shown;

[0021] Figure 3 for Figure 2 The structural schematic diagram of the material flow shaping mechanism shown;

[0022] Figure 4 for Figure 2 The shown warehouse is a distribution diagram of weighing modules with a square body;

[0023] Figure 5 for Figure 2 The distribution diagram of the weighing modules shown is a circular silo.

[0024] The purpose, features and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] 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.

[0027] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0029] Please refer to the attached Figures 1 to 4The utility model provides a powder material batching system. The powder material batching system includes a silo 1, a feeder 3, a buffering and stabilizing flow device 5 and a belt scale 7 which are arranged in sequence from top to bottom. The buffering and stabilizing flow device 5 includes a buffer silo 51 and a material flow shaping mechanism 53. The inlet end of the buffer silo 51 is connected to the feeder 3, and the outlet end of the buffer silo 51 is located above the belt scale 7 at intervals. The material enters the buffer silo 51 from the feeder 3 for temporary storage and then is discharged to the belt scale 7. The belt scale 7 transports the powder material out. A flat material port 510 is provided at the outlet end of the buffer silo 51. The flat material port 510 is located directly above the running direction of the belt scale 7. The material flow shaping mechanism 53 is rotatably connected to the outer wall of the outer wall of the buffer silo 51, and is semi-enclosed and enclosed outside the flat material port 510 to shape and compact the material discharged from the flat material port 510. The material is buffered and shaped by arranging a buffering and stabilizing flow device 5 between the feeder 3 and the belt scale 7, wherein the buffer bin 51 is arranged between the feeder 3 and the belt scale 7 for caching the material discharged from the feeder 3, and the material temporarily stored in the buffer bin 51 can be smoothly discharged to the belt scale 7, thereby reducing the impact of the material on the conveying belt of the belt scale 7, causing the tension of the conveying belt to change, and affecting the accuracy of the weighing result of the belt scale, and the material flow shaping mechanism 53 installed on the buffer bin 51 shapes and compacts the material discharged from the flat material port 510, so that the powdered material can maintain a stable state when it flows to the belt scale 7, and the continuity, uniformity and fluctuation amplitude of the powdered material flow are significantly improved, reducing the impact of the material flow tower falling on the weighing of the belt scale 7, thereby reducing the impact of the material flow on the entire batching system.

[0030] Specifically, in this embodiment, the material flow shaping mechanism 53 includes a flat material plate 531, a baffle 533 and an adapter 535. The flat material plate 531 is rotatably connected to the outer wall of the buffer bin 51 through the adapter 535, and the flat material plate 531 is located directly above the flat material opening 510. The baffles 533 are located on both sides of the flat material plate 531 and form a semi-enclosed structure with the flat material plate 531 to enclose the outside of the flat material opening 510. The baffles 533 rotate around the adapter 535, and the material is discharged from the outlet end of the buffer bin 51 with a certain temporary storage amount. With the operation of the belt scale 7, the material is transported by the belt scale 7 at the flat material opening 510 to form an operating force, so that the flat material plate 531 can realize its opening after rotation under the push of the logistics to flatten the material. The flat material plate 531 and the baffle 533 enclose the flat material opening 510 to form a semi-enclosed structure. Further, it is understandable that the shape enclosed by the semi-enclosed structure formed by the flat material plate 531 and the baffle 533 is the structural shape that needs to be shaped into the logistics, and the material is compacted during the shaping process so that the material forms a consistent material shape on the flat belt scale. It is understandable that if the material and the belt scale 7 are divided into several units, the weighing weight of the belt scale 7 at each position is consistent, so that the belt scale 7 can accurately weigh the material, thereby improving the accuracy of the batching system.

[0031] Specifically, in this embodiment, the adapter 535 is a hinge.

[0032] As a preferred embodiment of the present invention, the material flow shaping mechanism 53 further includes a counterweight block 537, which is installed on the flat material plate 531. The weight of the flat material plate 531 itself can flatten and compact the material, and the added configuration block can give a certain pressure to the material through its own added weight to achieve material compaction.

[0033] The buffer bin 51 includes a frame 511, a flexible connector 513, a bin body 515 and a weighing module 517. The bin body 515 is fixed on the frame 511. The flexible connector 513 is arranged at the inlet end of the bin body 515 and connected to the outlet end of the feeder 3. The weighing module 517 is installed on the bin body 515. Specifically, the flexible connector 513 is a corrugated compensating tube. The corrugated compensating tube forms a flexible and non-rigid connection between the buffer bin 51 and the feeder 3, and the outlet end of the buffer bin 51 maintains a reasonable distance from the conveyor belt of the belt scale 7 without contact, so that the buffer bin 51 is in a suspended state, avoiding external factors from affecting the accuracy of the weighing data of the weighing module 517.

[0034] The outlet end of the silo 515 is square or circular, and there are multiple weighing modules 517, which are installed on the frame 511. The circumference of the silo 515 protrudes outward to form an outer ring, and the multiple weighing modules 517 are evenly distributed around the outer ring for weighing the silo 515. Furthermore, there are three or four weighing modules 517, and preferably, there are three weighing modules 517. The three weighing modules are distributed under the outer ring formed by them and supported on the frame. Figure 4 and Figure 5 As shown, there are three weighing modules 517. Of course, it is understandable that the number of weighing modules 517 can be determined according to the size of the warehouse body 515.

[0035] Furthermore, the silo body 515 is in a funnel shape. When materials enter the buffer silo 51 , the outlet end thereof is in a contraction structure to temporarily store the materials, thereby alleviating the materials discharged from the silo body 515 .

[0036] Specifically, the belt scale 7 is an electronic belt scale. The weighing module 517 is a weight sensor. The batching system controls the amount of powdered material in the buffer bin 51 according to the data of the weighing sensor. When the weighing sensor data is higher than the set value, the feeder 3 is controlled to stop feeding to avoid overflow; when the weighing sensor data is lower than the set value, the feeder 3 is controlled to start feeding to avoid interruption of the batching system.

[0037] Specifically, the feeder 3 is an impeller feeder, and the powdered material flows out of the impeller feeder and enters the buffer bin 51 of the buffering and stabilizing flow device 5. After buffering and shaping, the continuity, uniformity and fluctuation amplitude of the powdered material flow on the electronic belt scale are significantly improved.

[0038] The powder material batching system provided by the utility model buffers and shapes the material by arranging a buffering and stabilizing flow device 5 between the feeder 3 and the belt scale 7, wherein the buffer bin 51 is arranged between the feeder 3 and the belt scale 7 for caching the material discharged from the feeder 3, and the material temporarily stored in the buffer bin 51 can be discharged smoothly and quantitatively to the belt scale 7, thereby reducing the impact of the material on the conveyor belt of the belt scale 7, causing the tension of the conveyor belt to change, and affecting the accuracy of the weighing result of the belt scale, and the material flow shaping mechanism 53 installed on the buffer bin 51 shapes and compacts the material discharged from the flat material port 510, so that the powder material can maintain a stable state when it flows to the belt scale 7, and the continuity, uniformity and fluctuation amplitude of the powder material flow are significantly improved, reducing the impact of the material flow collapse on the weighing of the belt scale 7, thereby reducing the impact of the material flow on the entire batching system.

[0039] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A powder material batching system, characterized in that: It includes a silo, a feeder, a buffer and flow stabilizing device and a belt scale which are arranged in sequence from top to bottom. The buffer and flow stabilizing device includes a buffer silo, a weighing module and a material flow shaping mechanism. The inlet end of the buffer silo is connected to the feeder, and the outlet end of the buffer silo is located above the belt scale at an interval. The material enters the buffer silo from the feeder for temporary storage and is then discharged onto the belt scale. A flat material port is provided at the outlet end of the buffer silo, and the flat material port is located directly above the running direction of the belt scale. The material flow shaping mechanism is rotatably connected to the outer wall of the buffer silo, and is semi-enclosed and enclosed outside the flat material port to shape and compact the material discharged from the flat material port.

2. The powder material batching system according to claim 1, characterized in that: The material flow shaping mechanism includes a flat material plate, a baffle and an adapter. The flat material plate is rotatably connected to the outer wall of the buffer bin through the adapter, and the flat material plate is located directly above the flat material port. The baffle is located on both sides of the flat material plate and forms a semi-enclosed structure with the flat material plate to enclose the outside of the flat material port.

3. The powder material batching system according to claim 2, characterized in that: The adapter is a hinge.

4. The powder material batching system according to claim 2, characterized in that: The material flow shaping mechanism also includes a counterweight block, which is installed on the flat material plate.

5. The powder material batching system according to claim 1, characterized in that: The buffer bin includes a frame, a flexible connector, a bin body and a weighing module. The bin body is fixed on the frame. The flexible connector is arranged at the inlet end of the bin body and connected to the outlet end of the feeder. The weighing module is installed on the bin body.

6. The powder material batching system according to claim 5, characterized in that: There are multiple weighing modules, an outer ring protrudes outward from the circumference of the warehouse body, and multiple weighing modules are installed on the frame and evenly distributed around the circumference of the outer ring for weighing the warehouse body.

7. The powder material batching system according to claim 5, characterized in that: The flexible connecting piece is a corrugated compensating tube.

8. The powder material batching system according to claim 5, characterized in that: The warehouse body is funnel-shaped.

9. The powder material batching system according to claim 5, characterized in that: The weighing module is a weight sensor.

10. The powder material batching system according to claim 5, characterized in that: The number of the weighing modules is three or four.

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