Sundry trapping device for dust removal pipeline

Abstract

The utility model discloses a dust removal pipeline impurity trapping device, which belongs to the field of dust removal in steel production, and comprises an impurity trapping net parallel to the radial section of a dust removal pipeline, and the impurity trapping net is detachably connected in the dust removal pipeline; a differential pressure gauge is arranged on the outer side of the dust removal pipeline, differential pressure pipelines are connected to the two sides of the differential pressure gauge, and the differential pressure pipelines are arranged on the two sides of the impurity trapping net in an extending mode through the pipe wall of the dust removal pipeline; a sundry hopper is arranged on the lower side of the sundry trapping net, and an opening in the top surface of the sundry hopper extends to be arranged in the dust removal pipeline and is used for collecting the sundries intercepted by the sundry trapping net; an opening is formed in the side wall of the dust removal pipeline, an access door is arranged at the opening, and the access door is adjacent to the impurity trapping net and used for manually cleaning impurities intercepted by the impurity trapping net or replacing the impurity trapping net; the dust removal pipeline is simple in structure, effectively filters impurities entering the dust removal pipeline, and prevents the impurities from entering the dust remover to cause dust remover accidents.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust removal in steel production, and in particular relates to a dust removal pipeline debris collection device. Background Art

[0002] The coking, sintering, pelletizing, ironmaking, steelmaking and other processes of steel enterprises all use belt conveying. The belt conveying process of each process is equipped with a dust removal system, and the dust removal system is connected to the dust collector. Due to the inevitable mixing of debris in the material during transportation, such as tarpaulin, tarpaulin, sampling bags, wood and other debris; if the above debris is sucked into the dust collector by the dust removal system, it will cause the pressure difference in the dust removal pipeline to increase, resulting in ash failure, affecting the safe operation of the dust collector, and even causing the dust collector to fail and shut down, causing environmental accidents. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model provides a dust removal pipeline debris collection device.

[0004] The utility model is implemented as follows: a dust removal pipeline debris collection device is installed in the dust removal pipeline, comprising a debris collection net arranged parallel to the radial cross section of the dust removal pipeline, the debris collection net is detachably connected to the dust removal pipeline, and is used to intercept the debris in the dust removal pipeline;

[0005] A differential pressure gauge is arranged outside the dust removal duct, one side of the differential pressure gauge is connected to a first differential pressure pipeline, and the other side of the differential pressure gauge is connected to a second differential pressure pipeline; the first differential pressure pipeline and the second differential pressure pipeline extend through the wall of the dust removal duct and are arranged on both sides of the debris collection net, so as to transmit the pressure on both sides of the debris collection net to the differential pressure gauge;

[0006] A debris bucket is arranged at the lower side of the debris collection net, and the top opening of the debris bucket extends into the dust removal duct to collect the debris intercepted by the debris collection net; the bottom of the debris bucket is arranged as a discharge port;

[0007] An opening is provided on the side wall of the dust removal duct, and an inspection door is provided at the opening. The inspection door is arranged adjacent to the debris collection net and is used for manually cleaning the debris intercepted by the debris collection net or replacing the debris collection net.

[0008] Furthermore, the debris collection net is divided into two equal parts, each part of the debris collection net is fixedly connected with a fixing rib, and both sides of the inner wall of the dust removal duct are correspondingly fixedly connected with connecting ribs, and the fixing ribs and the connecting ribs are fixed by bolts.

[0009] Furthermore, the fixing ribs are provided in two numbers and are respectively fixed at two ends of each part of the debris capturing net.

[0010] Furthermore, a plug valve is plugged into the discharge port, and after the plug valve is pulled out, the debris accumulated in the debris bucket is discharged through the discharge port.

[0011] Furthermore, a distance is set between the outer circumferential side of the debris collecting net and the inner wall of the dust removal duct.

[0012] Furthermore, the distance between one side of the debris collection net and the inner wall of the dust removal duct is set to 40±5mm.

[0013] Furthermore, the mesh size of the debris collection net is 40X40mm.

[0014] The utility model has the following advantages and technical effects: the utility model has a simple structure and can effectively filter out debris entering the dust removal pipeline, thus preventing debris from entering the dust collector and causing dust collector accidents; an inspection door is provided to facilitate the cleaning of debris and the inspection and replacement of the debris collection net; through the setting of a differential pressure gauge, the pressure difference in the dust removal pipeline is monitored in real time, so that the device can be cleaned and inspected in time to avoid pipeline blockage and collapse accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the dust removal duct assembly structure provided by an embodiment of the utility model;

[0016] Figure 2 yes Figure 1 Schematic diagram of the AA section.

[0017] In the figure: 1. debris collection net; 2. first pressure differential pipeline; 3. pressure differential gauge; 4. inspection door; 5. debris bucket; 6. gate valve; 7. bolts; 8. dust removal pipeline; 9. flat steel; 10. round steel; 11. discharge port; 12. fixing ribs; 13. connecting ribs; 14. second pressure differential pipeline. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0019] See also Figure 1 , Figure 2 A dust removal duct debris capture device is installed in the dust removal duct 8; it includes a debris capture net 1 arranged parallel to the radial cross-section of the dust removal duct 8, and the debris capture net 1 is detachably connected to the dust removal duct 8 to intercept the debris in the dust removal duct 8; the outer contour shape of the debris capture net 1 is consistent with the dust removal duct 8, and a single side is smaller than the inner wall of the dust removal duct 8 by 40±5mm, and the spacing setting facilitates the installation of the debris capture net 1, and can also play a role in intercepting debris.

[0020] The debris collection net 1 is divided into two semicircular nets, and the outer contour size of the debris collection net 1 is determined according to the pipeline size; the debris collection net 1 is connected to the dust removal pipeline 8 by bolts 7, which is convenient for disassembly and cleaning of debris.

[0021] Each part of the debris collection net 1 is welded with a fixing rib 12, and the fixing rib 12 is provided with two and is respectively fixed at the two ends of each part of the debris collection net 1; the inner sides of the dust removal duct 8 are correspondingly welded with connecting ribs 13, and the fixing ribs 12 and the connecting ribs 13 are respectively provided with threaded holes, and the fixing ribs 12 and the connecting ribs 13 are fixed by bolts 7, that is, the debris collection net 1 is bolted to the inside of the dust removal duct 8; the debris entering the dust removal duct 8 is intercepted and filtered at the debris collection net 1, and the heavier debris will fall due to its own weight.

[0022] The outer frame of the debris collection net 1 is made of 40X6mm flat steel, and a mesh surface made of φ10mm round steel welded in an interlaced manner is welded inside the outer frame, and the mesh size of the mesh surface is 40X40mm.

[0023] A differential pressure gauge 3 is arranged on the outside of the dust removal duct 8, one side of the differential pressure gauge 3 is connected to the first differential pressure pipeline 2, and the other side of the differential pressure gauge 3 is connected to the second differential pressure pipeline 14; the first differential pressure pipeline 2 and the second differential pressure pipeline 14 transmit the sensed pressure to the differential pressure gauge 3; the first differential pressure pipeline 2 and the second differential pressure pipeline 14 extend through the wall of the dust removal duct 8 and are arranged on both sides of the debris collection net 1, and keep a distance of more than 500mm from the debris collection net 1 to reduce the error of the pressure on both sides of the sensed debris collection net 1; the data of the differential pressure gauge is connected to the dust removal control computer, and the dust removal control computer determines the pipeline blockage through the differential pressure data. If the differential pressure exceeds 1000-1500pa, the dust removal duct 8 should be cleaned and unblocked to avoid serious pipeline blockage and cause the dust removal duct 8 to collapse.

[0024] A debris bucket 5 is arranged at the lower side of the debris collection net 1, and the top opening of the debris bucket 5 extends and is arranged in the dust removal duct 8, which is used to collect the debris filtered and intercepted by the debris collection net 1; the bottom of the debris bucket 5 is arranged as a discharge port 11, and a gate valve 6 is plugged into the discharge port 11. After the gate valve 6 is pulled out, the debris accumulated in the debris bucket 5 is discharged through the discharge port 11; the discharge port 11 can be connected to a ton bag to facilitate the collection and treatment of debris and avoid secondary impact on the environment.

[0025] An opening is provided on the side wall of the dust removal duct 8, and an inspection door 4 is provided at the opening. The inspection door 4 is arranged adjacent to the debris collection net 1. The inspection door 4 facilitates personnel to enter the dust removal duct 8, clean up the debris intercepted by the debris collection net 1 or replace the debris collection net 1.

[0026] The working principle of the utility model is described below:

[0027] The device is arranged on the main pipeline of the dust removal pipeline. During the material loading and unloading and transportation process, the dust removal system sucks the sundries mixed in the incoming materials, such as tarpaulin, tarpaulin cloth, sampling bag, wood and other sundries into the dust removal pipeline. After the airflow carrying the sundries passes through the sundries collection net 1, the airflow passes through, and other sundries are filtered and captured by the sundries collection net 1, which avoids the sundries entering the dust collector and causing the ash conveying system to be blocked, thereby causing dust removal equipment accidents.

[0028] When the debris accumulates more and more at the debris collection net 1 and gradually blocks the dust removal pipe 8, the pressure difference data on both sides of the debris collection net 1 in the dust removal pipe 8 will continue to increase; when the pressure difference data reaches 1000-1500pa, adjust the wind speed of the dust removal fan to a safe range, organize personnel to enter the dust removal pipe 8 through the inspection door 4, and clean the debris on the debris collection net 1 into the debris bucket 5; connect the lower end of the gate valve 6 to the ton bag, and after opening the gate valve, the debris falls into the ton bag, and the debris is discharged from the dust removal pipe system.

[0029] The debris collection net in the device is connected to the dust removal pipe by bolts, and the debris collection net is arranged in two semicircular structures for easy replacement; the debris collection net in the device has a simple structure, which is conducive to self-processing of surplus materials and saves material costs.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dust removal pipeline debris collection device, installed in a dust removal pipeline (8), characterized in that: It comprises a debris collection net (1) arranged parallel to the radial cross section of the dust removal pipeline (8), wherein the debris collection net (1) is detachably connected to the dust removal pipeline (8) and is used to intercept debris in the dust removal pipeline (8); A differential pressure gauge (3) is arranged outside the dust removal pipeline (8); one side of the differential pressure gauge (3) is connected to a first differential pressure pipeline (2), and the other side of the differential pressure gauge (3) is connected to a second differential pressure pipeline (14); the first differential pressure pipeline (2) and the second differential pressure pipeline (14) pass through the wall of the dust removal pipeline (8) and extend to be arranged on both sides of the debris collection net (1), and are used to transmit the pressure on both sides of the debris collection net (1) to the differential pressure gauge (3); A debris bucket (5) is arranged at the lower side of the debris collection net (1); the top opening of the debris bucket (5) extends into the dust removal duct (8) and is used to collect the debris intercepted by the debris collection net (1); the bottom of the debris bucket (5) is arranged as a discharge port (11); An opening is provided on the side wall of the dust removal duct (8), and an inspection door (4) is provided at the opening. The inspection door (4) is arranged adjacent to the debris collection net (1) and is used for manually cleaning debris intercepted by the debris collection net (1) or replacing the debris collection net (1).

2. The dust removal duct debris collection device according to claim 1 is characterized in that: The debris collection net (1) is divided into two equal parts, each part of the debris collection net (1) is fixedly connected with a fixing rib (12), and connecting ribs (13) are correspondingly fixedly connected to both sides of the inner wall of the dust removal duct (8), and the fixing ribs (12) and the connecting ribs (13) are fixedly connected by bolts (7).

3. The dust removal duct debris collection device according to claim 2 is characterized in that: The fixing ribs (12) are provided in two pieces and are respectively fixed to the two ends of each part of the debris capturing net (1).

4. The dust removal duct debris collection device according to claim 3 is characterized in that: The discharge port (11) is provided with a plug valve (6) inserted therein, and after the plug valve (6) is pulled out, the debris accumulated in the debris bucket (5) is discharged through the discharge port (11).

5. The dust removal duct debris collection device according to claim 1 is characterized in that: The debris collection net (1) is spaced apart from the inner wall of the dust removal pipe (8) in the circumferential direction.

6. The dust removal duct debris collection device according to claim 5, characterized in that: The distance between one side of the debris collection net (1) and the inner wall of the dust removal pipe (8) is set to 40±5 mm.

7. The dust removal duct debris collection device according to any one of claims 1 to 6, characterized in that: The mesh size of the debris collection net (1) is 40X40mm.

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