Air inlet structure for bag collector

Abstract

The utility model relates to the technical field of metallurgical equipment, in particular to an air inlet structure for a bag collector, which comprises a bag bin body, a surge bin, a deformation pipe, an inlet pipeline, a guide plate, an air duct vertical partition plate, an air duct transverse partition plate and a reinforcing rib, the surge bin is positioned below the bag bin body, an air inlet is formed in one side wall of a shell of the surge bin, and an air outlet is formed in the other side wall of the shell of the surge bin; one end of the deformation pipe is connected to the inlet pipeline, the other end of the deformation pipe is connected to the air inlet, the flow guide plate is arranged in the shell of the surge bin and located on the upper edge of the air inlet, an included angle of 45-70 degrees is formed between the flow guide plate and the vertical direction, the air channel transverse partition plate, the air channel vertical partition plate and the cloth bag bin shell form an internal air channel together, and the reinforcing ribs are arranged in the internal air channel. According to the scheme, the natural settling time of dust can be prolonged, the dust settling effect is enhanced, meanwhile, strong airflow is prevented from directly washing the filter bag, the load of the filter bag is reduced, and in addition, the problem of unbalanced collection of the two dust bins is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical equipment, in particular to an air inlet structure for a bag dust collector. Background Art

[0002] The statements in this section are merely intended to provide background information related to the technical solution of the present application to aid understanding, and they do not necessarily constitute prior art with respect to the technical solution of the present application.

[0003] During the material preparation process of metallurgical furnace production, bag dust collectors are used to collect materials. The collected materials fall into the two powder bins of the bag dust collectors and are then transported to the material bins for storage by bin pumps for use in metallurgical furnaces. During production operation, the dust concentration at the inlet of the bag dust collector is as high as 1000g / Nm 3 The inlet air duct of the bag dust collector is set on the side of the bag dust collector. There is no buffer bin on the bag bin body. The air flow directly washes the bottom of the filter bag through the air duct, causing the filter bag to be overloaded and the bottom of the filter bag to be easily worn and leaked. At the same time, the lateral air inlet method causes uneven air flow distribution, and the two powder bins of the bag dust collector collect uneven amounts of ash. In addition, due to the limited storage capacity of the two powder bins, when the bin pump of one of the powder bins fails and cannot transport, the bin will be full and the system will be forced to stop. Utility Model Content

[0004] In order to solve the problem of heavy load and easy wear of filter bags caused by high dust concentration and insufficient dust buffering and settling time during the material preparation process of metallurgical furnaces, an air inlet structure for a bag dust collector is provided.

[0005] The air intake structure of the bag dust collector of the present application includes a bag bin body, a buffer bin, a deformable tube, an inlet pipe, a guide plate, a vertical partition of the air duct, a transverse partition of the air duct, and reinforcing ribs. The buffer bin is located below the bag bin body and above the two powder bins of the bag dust collector. The buffer bin has the same horizontal cross-sectional size as the bag bin body. An air inlet is provided on one side wall of the shell of the buffer bin. One end of the deformable tube is connected to the inlet pipe, and the other end is connected to the air inlet on the shell of the buffer bin. The guide plate is arranged inside the shell of the buffer bin and is located at the upper edge of the air inlet. The guide plate extends obliquely downward from the shell of the buffer bin and forms an angle of 45-70° with the vertical direction. The vertical partition of the air duct extends from the top of the bag bin body to the lower end of the buffer bin. The transverse partition of the air duct, the vertical partition of the air duct and the bag bin shell together form an internal air duct, and the reinforcing ribs are provided in the internal air duct.

[0006] Preferably, the air inlet is arranged at the center of the side wall of the shell of the buffer bin.

[0007] Preferably, the guide plate forms an angle of 60° with the vertical direction.

[0008] Preferably, upper and lower layers of reinforcing ribs are provided in the internal air duct.

[0009] Preferably, the reinforcing ribs are made of Ф108 steel pipe.

[0010] Preferably, the vertical partitions and horizontal partitions of the air duct are detachable structures.

[0011] Preferably, an air volume regulating valve is provided on the inlet pipe.

[0012] The utility model has the following beneficial effects:

[0013] (1) By installing a buffer bin under the bag bin body, the natural settling time of dust is prolonged, the load on the filter bag is reduced, and the storage capacity of the powder bin is increased, effectively solving the problem of uneven collection of the two powder bins.

[0014] (2) The air inlet mode of the bag silo is forward air inlet to evenly distribute the airflow. A guide plate with an angle of 45-70° to the vertical direction is set on the upper edge of the air inlet, so that the airflow in the silo flows from bottom to top, prolonging the residence time of the airflow in the buffer silo, enhancing the dust settling effect, and preventing strong airflow from directly eroding the filter bags. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following further describes the embodiments of the present invention with reference to the accompanying drawings, wherein:

[0016] Figure 1 Schematic diagrams of front and side views of an air inlet structure for a bag dust collector according to one embodiment.

[0017] The meanings of the accompanying numbers are as follows: 1-bag bin body, 2-buffer bin, 3-deformation tube, 4-inlet pipe, 5-guide plate, 6-air duct vertical partition, 7-air duct horizontal partition, 8-reinforcement rib. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] Figure 1 Schematic diagram of the front view and side view of the air inlet structure for a bag dust collector according to one embodiment. Figure 1As shown, an air inlet structure for a bag dust collector includes a bag bin body 1, a buffer bin 2, a deformation tube 3, an inlet pipe 4, a guide plate 5, an air duct vertical partition 6, an air duct horizontal partition 7, and a reinforcing rib 8.

[0020] The buffer bin 2 is located below the bag bin body 1 and above the two powder bins of the bag dust collector. The buffer bin 2 has the same horizontal cross-sectional size as the bag bin body 1. An air inlet is provided on a side wall of the shell of the buffer bin 2. One end of the deformable tube 3 is connected to the inlet pipe 4, and the other end is connected to the air inlet on the shell of the buffer bin 2. The guide plate 5 is provided inside the shell of the buffer bin 2 and is located on the upper edge of the air inlet. The guide plate 5 extends obliquely downward from the shell of the buffer bin 2 and forms an angle of 45-70° with the vertical direction. The air duct vertical partition 6 extends from the top of the bag bin body 1 to the lower end of the buffer bin 2. The air duct horizontal partition 7, the air duct vertical partition 6 and the bag bin shell together form an internal air duct, and the reinforcing rib 8 is provided in the internal air duct.

[0021] By adding a buffer bin 2 below the bag bin body 1, the natural settling time of dust can be extended, the load on the filter bags can be reduced, and the storage capacity of the powder bin can be increased, effectively solving the problem of uneven collection of the two powder bins.

[0022] In one embodiment, the air inlet is arranged at the center of the side wall of the shell of the buffer bin, and the air is introduced in a positive direction to evenly distribute the airflow.

[0023] The guide plate 5 is angled at 45-70° with the vertical direction, so that the airflow in the silo flows from bottom to top, extending the airflow's residence time in the buffer silo, enhancing dust settling, and preventing the airflow from directly scouring the filter bags. In one embodiment, the guide plate 5 is angled at 60° with the vertical direction.

[0024] The reinforcing ribs 8 are used to prevent deformation of the vertical partitions of the air duct. In one embodiment, the internal air duct is provided with upper and lower layers of reinforcing ribs 8. In one embodiment, the reinforcing ribs 8 are made of Ø108 steel pipe.

[0025] In one embodiment, the vertical partitions 6 and the horizontal partitions 7 of the air duct are detachable structures, which facilitates maintenance and cleaning of the internal air duct when needed.

[0026] In one embodiment, an air volume regulating valve is provided on the inlet pipe 4 to adjust the air volume entering the bag dust collector according to actual needs.

[0027] Reference herein to "various embodiments," "some embodiments," "one embodiment," or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. The appearances of the phrase "in various embodiments," "in some embodiments," "in one embodiment," or "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. It will be appreciated that the particular features, structures, or characteristics described in one embodiment can be combined, in whole or in part, with one or more other embodiments without necessarily being limited to the combination described for the one embodiment. Expressions such as "based on," "applied to," "composed of," or "comprising of" as used herein are intended to be non-exclusive, i.e., to include the stated feature, structure, or characteristic, but not to exclude others. In the present application, some of the schematic operation steps are described in a certain order for the sake of clarity, but it can be understood by those skilled in the art that each of the operation steps is not essential, and some of the steps can be omitted or replaced by other steps. The operation steps also do not have to be executed sequentially as shown, but some of the operation steps can be executed in a different order or in parallel, as long as the new execution manner is not illogical or inoperable.

[0028] Some exemplary embodiments of the present application are described above, and it can be understood that the above embodiments are only used to explain the present application, and do not constitute a limitation on the protection scope of the present application. The features in these embodiments can be recombined in a suitable manner, and the schemes obtained thereby are still within the protection scope of the present application. Based on the above embodiments, all other embodiments obtained by those skilled in the art without making creative efforts, i.e., all modifications, equivalent replacements, and improvements, etc. made within the spirit and principles of the present application, are also within the protection scope of the present application.

Claims

1. An air inlet structure for a bag dust collector, characterized in that: include: A bag bin body (1), a buffer bin (2), a deformation tube (3), an inlet pipe (4), a guide plate (5), an air duct vertical partition (6), an air duct horizontal partition (7), and a reinforcing rib (8); the buffer bin (2) is located below the bag bin body (1) and above the two powder bins of the bag dust collector; the buffer bin (2) has the same horizontal cross-section size as the bag bin body (1); an air inlet is provided on one side wall of the shell of the buffer bin (2); one end of the deformation tube (3) is connected to the inlet pipe (4); The other end is connected to the air inlet, the guide plate (5) is arranged inside the shell of the buffer bin (2) and is located at the upper edge of the air inlet, the guide plate (5) extends obliquely downward from the shell of the buffer bin (2) and forms an angle of 45-70 degrees with the vertical direction, the air duct vertical partition (6) extends from the top of the bag bin body (1) to the lower end of the buffer bin (2), the air duct transverse partition (7), the air duct vertical partition (6) and the bag bin shell together form an internal air duct, and the reinforcing rib (8) is provided in the internal air duct.

2. The air inlet structure for a bag dust collector according to claim 1, characterized in that: The air inlet is arranged at the center of the side wall of the shell of the buffer bin.

3. The air inlet structure for a bag dust collector according to claim 1, characterized in that: The guide plate (5) forms an angle of 60° with the vertical direction.

4. The air inlet structure for a bag dust collector according to claim 1, characterized in that: Upper and lower layers of reinforcing ribs (8) are provided in the internal air duct.

5. The air inlet structure for a bag dust collector according to claim 1, characterized in that: The reinforcing rib (8) is made of Ø108 steel pipe.

6. The air inlet structure for a bag dust collector according to claim 1, characterized in that: The air duct vertical partition plate (6) and the air duct horizontal partition plate (7) are detachable structures.

7. The air inlet structure for a bag dust collector according to claim 1, characterized in that: An air volume regulating valve is provided on the inlet pipe (4).

Images