Airflow balancing and dust removing device for batching weighing hopper

Abstract

The utility model provides an airflow balancing and dust removing device for a batching weighing hopper, and particularly relates to the technical field of ventilation and dust removing equipment for batching devices, the airflow balancing and dust removing device comprises a first exhaust pipe, a dust collecting cover, a second exhaust pipe and a dust remover, the first exhaust pipe is connected with a breathing opening of the weighing hopper, and a lifting device is installed on the first exhaust pipe; the dust collection cover is located above the first exhaust pipe and fixedly connected with the lifting end of the lifting device, a bottom opening of the dust collection cover is matched with a top opening of the first exhaust pipe, one end of the second exhaust pipe is connected with the top opening of the dust collection cover through a hose, and the other end of the second exhaust pipe is connected with the lifting end of the lifting device. An inlet of the dust remover is connected with the other end of the second exhaust pipe, an outlet of the dust remover is connected with an inlet of the fan through a pipeline, and an outlet of the fan is connected with one end of the third exhaust pipe. According to the utility model, the internal airflow of the weighing hopper can be balanced, the batching precision is improved, dust can be prevented from overflowing, and the plant environment is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation and dust removal equipment for batching devices, in particular to an airflow balancing and dust removal device for a batching weighing bucket. Background Art

[0002] In the computer automatic batching system, the weighing bucket is an important weighing device. The inlet of the weighing bucket is connected to several silos through pipelines. Different raw materials are stored in the silos. The outlet of the weighing bucket is connected to the mixer through pipelines. When batching, it is necessary to open the outlets of the silos of the required raw materials in turn. The raw materials will enter the weighing bucket through the pipeline and be weighed in turn. After all the required raw materials are weighed, open the outlet of the weighing bucket, and the materials in the weighing bucket will enter the mixer through the pipeline for mixing.

[0003] The original weighing hopper is designed to be closed to avoid dust. However, when the material enters the weighing hopper, the gas in the weighing hopper will be compressed to generate positive pressure, affecting the accuracy of the weighing hopper. Therefore, a breathing port is set on the top of the weighing hopper, and a keel is installed. A dust filter bag is installed outside the keel, which can effectively improve the impact of airflow on the weighing hopper. However, in the actual batching process, the dust-containing air is discharged from the breathing port, and a certain amount of dust will penetrate the dust filter bag, causing more dust around the breathing port, polluting the equipment and the environment. When the weighing hopper is discharged, due to the good sealing of the mixer, after the material enters the mixer, the air in the mixer will flow along the pipeline into the weighing hopper, causing the dust in the weighing hopper to overflow, and the material discharge speed is slow and the discharge time is long. Utility Model Content

[0004] The utility model aims to provide an airflow balancing and dust removal device for a batching weighing hopper, which can balance the internal airflow of the weighing hopper, improve the batching accuracy, prevent dust from overflowing, and protect the factory environment.

[0005] To achieve the above-mentioned purpose and other related purposes, the utility model provides an airflow balancing and dust removal device for a batching weighing bucket, which comprises: a first exhaust pipe, a dust hood, a second exhaust pipe and a dust collector, wherein one end of the first exhaust pipe is connected to the breathing port of the weighing bucket, and a lifting device is installed on the outer wall of the first exhaust pipe; the dust hood is located above the first exhaust pipe, the outer wall of the dust hood is fixedly connected to the lifting end of the lifting device, and the bottom opening of the dust hood matches the top opening of the first exhaust pipe; one end of the second exhaust pipe is connected to the top opening of the dust hood through a hose; the inlet of the dust collector is connected to the other end of the second exhaust pipe, the outlet of the dust collector is connected to the inlet of the fan through a pipeline, and the outlet of the fan is connected to one end of the third exhaust pipe.

[0006] In an example of the airflow balancing and dust removal device for the batching weighing hopper of the utility model, the lifting device includes one or more lifting cylinders, and the one or more lifting cylinders are fixedly installed on the outer wall of the first exhaust pipe.

[0007] In an example of the airflow balancing and dust removal device for the batching weighing bucket of the utility model, one or more mounting frames are provided on the outer wall of the first exhaust pipe, and one lifting cylinder is fixedly mounted on each of the mounting frames.

[0008] In an example of the airflow balancing and dust removal device for a batching weighing bucket of the utility model, the mounting frame includes a top plate, a bottom plate and a side plate, one end of the top plate and the bottom plate are respectively vertically fixedly connected to the side wall of the first exhaust pipe, the two ends of the side plate are respectively vertically fixedly connected to the other end of the top plate and the bottom plate, and the lifting cylinder is fixedly connected to the surface of the side plate away from the first exhaust pipe.

[0009] In an example of the utility model of the airflow balancing and dust removal device for the batching weighing bucket, a plurality of first through holes are provided on the side plate, a plurality of second through holes are provided on the lifting cylinder, and a plurality of the first through holes are respectively matched with a plurality of the second through holes and connected by bolts.

[0010] In an example of the airflow balancing and dust removal device for a batching weighing bucket of the utility model, a first connecting plate is fixedly installed on the lifting end of the lifting cylinder, a second connecting plate is fixedly installed on the top of the first connecting plate, and an end of the second connecting plate away from the lifting cylinder is fixedly connected to the bottom of the outer wall of the dust collecting hood.

[0011] In an example of the airflow balancing and dust removal device for the batching weighing bucket of the utility model, the dust collecting hood is conical, and the bottom opening diameter of the dust collecting hood is larger than the top opening diameter.

[0012] In an example of the airflow balancing and dust removal device for a batching weighing bucket of the utility model, an annular groove is provided on the inner wall of the bottom opening of the dust collecting cover, and the annular groove matches the outer wall of the top opening of the first exhaust pipe.

[0013] In an example of the airflow balancing and dust removal device for the ingredient weighing bucket of the utility model, when the lifting end of the lifting cylinder drives the dust hood to run to the bottom end, the top opening of the first exhaust pipe is located in the annular groove, and when the lifting end of the lifting cylinder drives the dust hood to run to the top end, the distance between the bottom end of the dust hood and the top end of the first exhaust pipe is 100 to 120 mm.

[0014] In an example of the airflow balancing and dust removal device for the batching weighing hopper of the utility model, the dust collector is a pulse dust collector.

[0015] In one example of the airflow balancing and dust removal device for the batching weighing bucket of the utility model, a controller is also included, and the controller is electrically connected to the lifting device, the dust collector and the fan respectively.

[0016] The utility model uses the first exhaust pipe to enable the gas in the weighing bucket to be discharged from the first exhaust pipe. When weighing materials, the lifting device is controlled to drive the dust hood to rise to the top. There is a certain distance between the dust hood and the first exhaust pipe. After the material enters the weighing bucket, the gas in the weighing bucket will be discharged from the first exhaust pipe and collected by the dust hood. It enters the dust collector through the second exhaust pipe. The clean air after dust removal is discharged through the fan and the third exhaust pipe. When discharging materials, the lifting device is controlled to drive the dust hood to descend to the bottom. The dust hood is engaged with the first exhaust pipe. At this time, the dust hood can quickly discharge the gas in the weighing bucket, reduce the air pressure in the weighing bucket, and use the pressure difference between the weighing bucket and the mixer to speed up the speed of discharging materials. The utility model can balance the internal airflow of the weighing bucket, improve the batching accuracy, and prevent dust from overflowing, protecting the factory environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the batching weighing bucket airflow balancing and dust removal device of the utility model;

[0018] Figure 2 It is a partial structural schematic diagram of the first exhaust pipe and the dust collecting cover in one embodiment of the batching weighing bucket airflow balance and dust removal device of the utility model;

[0019] Figure 3 It is a structural schematic diagram of a mounting frame in one embodiment of the batching weighing bucket airflow balancing and dust removal device of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the lifting cylinder in one embodiment of the batching weighing bucket airflow balancing and dust removal device of the utility model;

[0021] Figure 5 It is a cross-sectional view of a dust collecting cover in one embodiment of the batching weighing bucket airflow balancing and dust removal device of the utility model.

[0022] Component number:

[0023] 100, first exhaust pipe; 110, mounting frame; 111, top plate; 112, bottom plate; 113, side plate; 114, first through hole; 200, lifting device; 210, lifting cylinder; 211, second through hole; 212, first connecting plate; 213, second connecting plate; 300, dust hood; 310, annular groove; 400, second exhaust pipe; 500, dust collector; 600, fan; 610, third exhaust pipe; 700, silo; 800, weighing bucket; 900, mixer. DETAILED DESCRIPTION

[0024] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific implementation schemes, rather than to limit the scope of protection of the present invention. The test methods for which specific conditions are not specified in the following examples are usually carried out under conventional conditions or under the conditions recommended by the manufacturers.

[0025] When numerical ranges are given in the embodiments, it should be understood that unless otherwise specified in the present invention, both endpoints of each numerical range and any value between the two endpoints can be selected. Unless otherwise defined, all technical and scientific terms used in the present invention are in accordance with the prior art mastery of those skilled in the art and the description of the present invention, and any method, device and material of the prior art similar or equivalent to the method, device and material in the embodiments of the present invention can also be used to implement the present invention.

[0026] See also Figure 1 and Figure 2The utility model provides an airflow balance and dust removal device for a batching weighing bucket, which comprises: a first exhaust pipe 100, a dust hood 300, a second exhaust pipe 400 and a dust collector 500, one end of the first exhaust pipe 100 is connected to the breathing port of the weighing bucket 800, and a lifting device 200 is installed on the outer wall of the first exhaust pipe 100. The dust hood 300 is located above the first exhaust pipe 100, the outer wall of the dust hood 300 is fixedly connected to the lifting end of the lifting device 200, and the bottom opening of the dust hood 300 matches the top opening of the first exhaust pipe 100. One end of the second exhaust pipe 400 is connected to the top opening of the dust hood 300 through a hose 410. The inlet of the dust collector 500 is connected to the other end of the second exhaust pipe 400, the outlet of the dust collector 500 is connected to the inlet of the fan 600 through a pipeline, and the outlet of the fan 600 is connected to one end of the third exhaust pipe 610.

[0027] When the weighing bucket 800 weighs the material, the lifting device 200 is controlled to drive the dust hood 300 to rise to the top, so that there is a certain distance between the bottom opening of the dust hood 300 and the top opening of the first exhaust pipe 100, so as to avoid the suction force generated by the dust hood 300 affecting the airflow in the weighing bucket 800, resulting in inaccurate weighing. The discharge ports of the silo 700 are opened in sequence, and after the material enters the weighing bucket 800 through the pipeline, the gas in the weighing bucket 800 will carry a certain amount of dust and be discharged from the first exhaust pipe 100, and then collected by the dust hood 300, and enter the dust collector 500 through the second exhaust pipe 400, and the clean air after dust removal is discharged through the fan 600 and the third exhaust pipe 610. When the weighing bucket 800 discharges materials, the lifting device 200 is controlled to drive the dust hood 300 to descend to the bottom, and the bottom opening of the dust hood 300 is engaged with the top opening of the first exhaust pipe 100. Since the suction force generated by the dust hood 300 is large, the smoke and dust gas in the weighing bucket 800 can be quickly discharged, and the air pressure in the weighing bucket 800 can be reduced. The pressure difference between the weighing bucket 800 and the mixer 900 is used to speed up the discharge of materials from the weighing bucket 800. The utility model can balance the internal airflow of the weighing bucket 800, improve the batching accuracy, and prevent dust from spilling out, thereby protecting the factory environment.

[0028] See also Figures 2 to 4In an example of the airflow balance and dust removal device for the batching weighing bucket of the utility model, the lifting device 200 includes one or more lifting cylinders 210, and one or more lifting cylinders 210 are fixedly mounted on the outer wall of the first exhaust pipe 100. One or more mounting frames 110 are provided on the outer wall of the first exhaust pipe 100, and one lifting cylinder 210 is fixedly mounted on each mounting frame 110. The mounting frame 110 includes a top plate 111, a bottom plate 112 and a side plate 113, one end of the top plate 111 and the bottom plate 112 are respectively vertically fixedly connected to the side wall of the first exhaust pipe 100, and the two ends of the side plate 113 are respectively vertically fixedly connected to the other ends of the top plate 111 and the bottom plate 112, and the lifting cylinder 210 is fixedly connected to the surface of the side plate 113 away from the first exhaust pipe 100. The side plate 113 is provided with a plurality of first through holes 114, and the lifting cylinder 210 is provided with a plurality of second through holes 211. The plurality of first through holes 114 are matched with the plurality of second through holes 211 respectively and connected by bolts. The lifting end of the lifting cylinder 210 is fixedly installed with a first connecting plate 212, and the top of the first connecting plate 212 is fixedly installed with a second connecting plate 213, and the end of the second connecting plate 213 away from the lifting cylinder 210 is fixedly connected to the bottom of the outer wall of the dust collecting hood 300. The mounting frame 110 can provide a stable mounting support for the lifting cylinder 210, and a plurality of the mounting frames 110 can be evenly distributed on the outer wall of the first exhaust pipe 100. The cylinder body of the lifting cylinder 210 is connected to a gas supply device, such as an air pump or an air compressor, through a pipeline.

[0029] See also Figure 5 In an example of the batching weighing bucket airflow balance and dust removal device of the utility model, the dust hood 300 is conical, and the bottom opening diameter of the dust hood 300 is larger than the top opening diameter. An annular groove 310 is provided on the inner wall of the bottom opening of the dust hood 300, and the annular groove 310 matches the outer wall of the top opening of the first exhaust pipe 100. When the lifting end of the lifting cylinder 210 drives the dust hood 300 to run to the bottom end, the top opening of the first exhaust pipe 100 is located in the annular groove 210, and when the lifting end of the lifting cylinder 210 drives the dust hood 300 to run to the top end, the distance between the bottom end of the dust hood 300 and the top end of the first exhaust pipe 100 is 100-120 mm.

[0030] See also Figure 1 In one example of the airflow balancing and dust removal device for the batching weighing bucket of the present invention, the dust collector 500 is a pulse dust collector.

[0031] In one example of the batching weighing bucket airflow balancing and dust removal device of the utility model, a controller is also included, and the controller is electrically connected to the lifting device 200, the dust collector 500 and the fan 600. It should be noted that controlling the lifting device 200, the dust collector 500 and the fan 600 by the controller is a conventional technology in the field of electric control, which will not be described in detail here.

[0032] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A batching weighing bucket airflow balancing and dust removal device, characterized in that: include: a first exhaust pipe, one end of which is connected to the breathing port of the weighing bucket, and a lifting device is installed on the outer wall of the first exhaust pipe; A dust collecting hood, wherein the dust collecting hood is located above the first exhaust pipe, an outer wall of the dust collecting hood is fixedly connected to the lifting end of the lifting device, and a bottom opening of the dust collecting hood matches with a top opening of the first exhaust pipe; a second exhaust pipe, one end of which is connected to the top opening of the dust collecting hood through a hose; A dust collector, wherein the inlet of the dust collector is connected to the other end of the second exhaust pipe, the outlet of the dust collector is connected to the inlet of the fan through a pipeline, and the outlet of the fan is connected to one end of the third exhaust pipe.

2. The batching weighing bucket airflow balancing and dust removal device as claimed in claim 1, characterized in that: The lifting device includes one or more lifting cylinders, and the one or more lifting cylinders are fixedly installed on the outer wall of the first exhaust pipe.

3. The airflow balancing and dust removal device for batching weighing bucket as claimed in claim 2, characterized in that: One or more mounting frames are provided on the outer wall of the first exhaust pipe, and one lifting cylinder is fixedly mounted on each of the mounting frames.

4. The airflow balancing and dust removal device for batching weighing bucket as claimed in claim 3, characterized in that: The mounting frame includes a top plate, a bottom plate and a side plate, one end of the top plate and the bottom plate are respectively vertically fixedly connected to the side wall of the first exhaust pipe, the two ends of the side plate are respectively vertically fixedly connected to the other end of the top plate and the bottom plate, and the lifting cylinder is fixedly connected to the surface of the side plate away from the first exhaust pipe.

5. The airflow balancing and dust removal device for batching weighing bucket as claimed in claim 4, characterized in that: The side plate is provided with a plurality of first through holes, the lifting cylinder is provided with a plurality of second through holes, and the plurality of first through holes are matched with the plurality of second through holes respectively and connected by bolts.

6. The device for airflow balance and dust removal in a batching weighing bucket as claimed in claim 2, characterized in that: A first connecting plate is fixedly mounted on the lifting end of the lifting cylinder, a second connecting plate is fixedly mounted on the top of the first connecting plate, and one end of the second connecting plate away from the lifting cylinder is fixedly connected to the bottom of the outer wall of the dust collecting hood.

7. The device for airflow balance and dust removal in a batching weighing bucket as claimed in claim 2, characterized in that: The dust collecting hood is conical, and the bottom opening diameter of the dust collecting hood is larger than the top opening diameter.

8. The device for airflow balance and dust removal in a batching weighing bucket as claimed in claim 7, characterized in that: An annular groove is provided on the inner wall of the bottom opening of the dust collecting cover, and the annular groove matches with the outer wall of the top opening of the first exhaust pipe.

9. The device for airflow balance and dust removal of batching weighing bucket as claimed in claim 8, characterized in that: When the lifting end of the lifting cylinder drives the dust hood to the bottom end, the top opening of the first exhaust pipe is located in the annular groove, and when the lifting end of the lifting cylinder drives the dust hood to the top end, the distance between the bottom end of the dust hood and the top end of the first exhaust pipe is 100 to 120 mm.

10. The batching weighing bucket airflow balancing and dust removal device according to claim 1, characterized in that: The dust collector is a pulse dust collector.

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