Bag-type dust collector

Abstract

The utility model discloses a bag-type dust collector which comprises a main flue, a partition plate, a plurality of flue gas air doors, a plurality of bag-type dust collection bins, a guide plate I, a plurality of guide plates II and a plurality of guide plates III, the main flue is internally provided with the partition plate which is obliquely arranged to divide the interior of the main flue into a flue gas cavity and a gas purification cavity, and the main flue is provided with a flue gas inlet flange communicated with the flue gas cavity; a flow guide plate I which inclines downwards and is located at the rear end of the flue gas inlet flange is arranged in the main flue, flow guide plates II which are arranged in a row are arranged in the input ends of the flue gas air doors, and flow guide plates III are arranged between every two adjacent front and back flue gas air doors. Compared with the prior art, the flue gas dust removal device has the advantages that the uniformity of the amount of flue gas entering each ash hopper can be improved, and the dust removal efficiency is guaranteed.

Description

[Technical field]

[0001] The utility model relates to the technical field of dust collectors, in particular to a bag dust collector. [Background technology]

[0002] The bag filter is a dry dust filter. It is suitable for capturing fine, dry, non-fibrous dust. The filter bag is made of textile filter cloth or non-textile felt, and uses the filtering effect of fiber fabric to filter the dust-containing gas. When the dust-containing gas enters the bag filter, the large particles and heavy dust settle down due to gravity and fall into the ash hopper. When the gas containing finer dust passes through the filter material, the dust is retained, so that the gas is purified.

[0003] The application number is CN201610369044.0. A pulse bag dust collector is provided with an inclined baffle at a position corresponding to the smoke inlet in the main flue, and the baffle forms an angle of 40-50° with the direction of smoke advance. When the dust-laden gas enters the dust collector from the air inlet, it first hits the inclined baffle in the middle of the air inlet, and the airflow turns to flow into the ash hopper. At the same time, the airflow speed slows down. Due to the gravity sedimentation effect, the coarse dust particles in the gas fall directly into the ash hopper, which plays a role in pre-dust collection. Since there is no diversion mechanism in the main flue, the amount of smoke entering each ash hopper is poorly uniform, which affects the dust removal efficiency. [Contents of the utility model]

[0004] The purpose of the utility model is to solve the problems in the prior art and to provide a bag dust collector which can improve the uniformity of the amount of flue gas entering each ash hopper and ensure the dust removal efficiency.

[0005] To achieve the above-mentioned purpose, the utility model proposes a bag dust collector, including a main flue, a partition, a plurality of flue gas dampers, a plurality of bag dust removal chambers, a guide plate I, a plurality of guide plates II and a plurality of guide plates III. The main flue is provided with an inclined partition to divide it into a flue gas chamber and a clean gas chamber. The bottom of the main flue is provided with a flue gas damper connected to the flue gas chamber. The flue gas damper is connected to the smoke inlet of the corresponding bag dust removal chamber. The clean gas outlet of the bag dust removal chamber is connected to the clean gas chamber. The clean gas chamber is connected to the clean gas chamber through the clean gas damper. A clean gas outlet flange connected to the clean gas chamber is provided on the main flue. A smoke inlet flange connected to the smoke chamber is provided on the main flue. A guide plate I is provided in the main flue, which is inclined downward and located at the rear end of the smoke inlet flange. A row of guide plates II are provided in the input end of the smoke damper, and a guide plate III is provided between two adjacent smoke dampers.

[0006] Preferably, the angle a between the guide plate II and the smoke inlet is 65 degrees.

[0007] Preferably, the flue gas inlet flange is circular in shape.

[0008] Preferably, the diameter of the flue gas inlet flange is 3500 mm, and the guide plate I is located 750 mm below the center point of the flue gas inlet flange.

[0009] Preferably, the upper end of the guide plate III is flush with the upper end of the guide plate II.

[0010] Preferably, two clean air chambers are provided at the upper end of the main flue, and both of the clean air chambers are connected to the clean air cavity through a clean air damper.

[0011] Preferably, the smoke dampers are arranged in two rows, front and back, the smoke dampers in the front row are connected to the smoke inlet of the corresponding bag dust removal chamber on the front side of the main flue, the smoke dampers in the rear row are connected to the smoke inlet of the corresponding bag dust removal chamber on the rear side of the main flue, the clean air outlet of the front bag dust removal chamber is connected to the front clean air chamber, and the clean air outlet of the rear bag dust removal chamber is connected to the rear clean air chamber.

[0012] Beneficial effects of the utility model: compared with the prior art, the utility model can improve the uniformity of the smoke volume entering each ash hopper and ensure the dust removal efficiency by arranging a guide plate I in the main flue that is inclined downward and located at the rear end of the smoke inlet, a row of guide plates II in the input end of the smoke outlet, and a guide plate III between two adjacent smoke outlets.

[0013] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.

Brief Description of the Drawings

[0014] Figure 1 It is a structural schematic diagram of a bag dust collector of the utility model;

[0015] Figure 2 It is a partial side view of a bag dust collector of the utility model.

[0016] In the figure: 1-main flue, 2-partition, 3-smoke outlet, 4-bag dust removal chamber, 5-guide plate I, 6-guide plate II, 7-guide plate III, 8-smoke inlet, 9-convergence chamber, 10-connecting port, 11-smoke chamber, 12-clean air chamber, 13-valve. [Specific implementation method]

[0017] See also Figure 1 , 2The utility model discloses a bag dust collector, comprising a main flue 1, a partition 2, a plurality of smoke dampers 3, a plurality of bag dust removal chambers 4, a guide plate I5, a plurality of guide plates II6 and a plurality of guide plates III7. The main flue 1 is provided with an inclined partition 2 to divide the main flue 1 into a smoke cavity 11 and a clean gas cavity 12. The bottom of the main flue 1 is provided with a smoke damper 3 connected to the smoke cavity 11. The smoke damper 3 is connected to the smoke inlet of the corresponding bag dust removal chamber 4. The clean gas of the bag dust removal chamber 4 is connected to the smoke inlet of the bag dust removal chamber 4. The outlet is communicated with the clean air chamber 9, and the clean air chamber 9 is communicated with the clean air cavity 12 through the clean air damper 10. The main flue 1 is provided with a clean air outlet flange communicated with the clean air cavity 12, and the main flue 1 is provided with a smoke inlet flange 8 communicated with the smoke cavity 11. The main flue 1 is provided with a guide plate I5 which is inclined downward and located at the rear end of the smoke inlet flange 8. The input end of the smoke damper 3 is provided with a row of guide plates II6, and a guide plate III7 is provided between the two adjacent smoke dampers 3.

[0018] See also Figure 2 The included angle a between the guide plate II6 and the smoke inlet 8 is 65 degrees.

[0019] The flue gas inlet flange 8 is circular in shape, the diameter of the flue gas inlet flange 8 is 3500 mm, and the guide plate 15 is located 750 mm below the center point of the flue gas inlet flange 8.

[0020] See also Figure 2 The upper end of the guide plate III7 is flush with the upper end of the guide plate II6.

[0021] See also Figure 1 Two clean air chambers 9 are provided at the upper end of the main flue 1, and the clean air chambers 9 are connected to the clean air cavity 12 through the clean air dampers 10. The smoke dampers 3 are arranged in two rows, front and back. The front row of smoke dampers 3 are connected to the smoke inlet of the corresponding bag dust removal chamber 4 on the front side of the main flue 1, and the rear row of smoke dampers 3 are connected to the smoke inlet of the corresponding bag dust removal chamber 4 on the rear side of the main flue 1. The clean air outlet of the front bag dust removal chamber 4 is connected to the front clean air chamber 9, and the clean air outlet of the rear bag dust removal chamber 4 is connected to the rear clean air chamber 9.

[0022] Working process of this utility model:

[0023] During the operation of the bag dust collector of the utility model, smoke enters the smoke cavity 11 through the smoke inlet flange 8, and then enters the corresponding bag dust removal chamber 4 through the smoke damper 3. The smoke passes through the guide plate I5, the guide plate II6 and the guide plate III7 to improve the uniformity of the smoke passing through the smoke damper 3. The smoke enters the corresponding clean air chamber 9 after being filtered through the bag dust removal chamber 4. The clean air in the clean air chamber 9 enters the clean air cavity 12 through the corresponding clean air damper 10, and is finally discharged from the clean air outlet flange.

[0024] The flue gas inlet flange 8 is circular in shape and can be directly fixedly connected to the circular flue, avoiding the need for square-circle joint conversion for the square flue gas inlet to be fixedly connected to the circular flue. This is especially true when some projects have limited site or when interfacing with pipeline manufacturers, there may be a situation where square-circle joints cannot be arranged on site.

[0025] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A bag dust collector, characterized in that: The invention comprises a main flue (1), a partition (2), a plurality of flue gas dampers (3), a plurality of bag dust removal chambers (4), a guide plate I (5), a plurality of guide plates II (6) and a plurality of guide plates III (7), wherein the main flue (1) is provided with a partition plate (2) arranged obliquely to divide the main flue (1) into a flue gas chamber (11) and a clean gas chamber (12), a flue gas damper (3) in communication with the flue gas chamber (11) is provided at the bottom of the main flue (1), the flue gas damper (3) is in communication with a corresponding flue gas inlet of the bag dust removal chamber (4), and a clean gas outlet of the bag dust removal chamber (4) is in communication with the clean gas chamber (12). (9), the clean air chamber (9) is connected to the clean air cavity (12) through a clean air damper (10), a clean air outlet flange connected to the clean air cavity (12) is provided on the main flue (1), a smoke inlet flange (8) connected to the smoke cavity (11) is provided on the main flue (1), a guide plate I (5) inclined downward and located at the rear end of the smoke inlet flange (8) is provided in the main flue (1), guide plates II (6) arranged in a row are provided in the input end of the smoke damper (3), and guide plates III (7) are provided between two adjacent smoke dampers (3) in front and behind.

2. A bag dust collector according to claim 1, characterized in that: The angle a between the guide plate II (6) and the smoke inlet flange (8) is 65 degrees.

3. A bag dust collector according to claim 1, characterized in that: The flue gas inlet flange (8) is circular in shape.

4. A bag dust collector according to claim 3, characterized in that: The diameter of the flue gas inlet flange (8) is 3500 mm, and the guide plate I (5) is located 750 mm below the center point of the flue gas inlet flange (8).

5. A bag dust collector according to claim 1, characterized in that: The upper end of the guide plate III (7) is flush with the upper end of the guide plate II (6).

6. A bag dust collector according to claim 1, characterized in that: Two clean air chambers (9) are provided at the upper end of the main flue (1), and the clean air chambers (9) are both connected to the clean air cavity (12) through a clean air damper (10).

7. A bag dust collector according to claim 6, characterized in that: The smoke dampers (3) are arranged in two rows, front and back. The smoke dampers (3) in the front row are connected to the smoke inlet of the corresponding bag dust removal chamber (4) on the front side of the main flue (1), and the smoke dampers (3) in the rear row are connected to the smoke inlet of the corresponding bag dust removal chamber (4) on the rear side of the main flue (1). The clean air outlet of the front bag dust removal chamber (4) is connected to the front clean air chamber (9), and the clean air outlet of the rear bag dust removal chamber (4) is connected to the rear clean air chamber (9).

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