Off-line device of pulsed jet cloth filter

Abstract

The utility model discloses an off-line device of a pulse bag-type dust collector. Comprising a valve body (1), a valve plate (2), a flow guide plate (3), an air cylinder (5), a connecting rod (6) and a sliding ball chain row (7). The valve plate (2) is attached to an inner plate of the upper box body (9), and the sliding ball chain rows (7) are arranged on the two sides of the valve body (1). The connecting rod (6) is installed on the side face of the valve plate (2). The connecting rod (6) penetrates through a top plate of the upper box body (9) to be connected with a boss at the bottom of the valve plate (2), the flow guide plate (3) is welded to a frame on the upper portion of the valve body (1), the valve plate sliding groove (4) is formed in the middle of the valve body (1), and the valve plate (2) is arranged in the middle of the valve plate sliding groove (4). The full-bore check valve has the full-bore circulation characteristic, has the advantages of being rapid in opening and closing, low in circulation resistance, capable of cutting off media and the like, and due to the fact that the sliding ball chain row is adopted between the valve body and the valve plate, force output of the air cylinder is smaller.

Description

Technical Field

[0001] The utility model relates to the technical field of pulse bag dust removal, in particular to an off-line device of a pulse bag dust collector. Background Art

[0002] The off-line valve of the pulse bag dust collector comprises a driving device and a valve cover connected with the driving device.

[0003] When the pulse bag dust collector is operating normally, the valve cover of the offline valve must keep the smoke outlet of the upper box body in an open state. The smoke is filtered by the bag and passes through the upper box body into the smoke outlet before being discharged.

[0004] During blowing, the valve cover of the offline valve needs to seal the flue gas outlet and the blowing pipe is used for blowing.

[0005] The existing pulse bag dust collector offline valve cover is set above or below the smoke outlet inside the upper box, and the offline valve cover is in a horizontal state. During operation, the valve plate will hinder the flow of airflow, resulting in an increase in resistance. The output of the drive device to overcome the negative pressure generated by the airflow is large. The width of the valve plate is large, and the cross-sectional width of the air duct is restricted by the width of the offline valve plate. Summary of the invention

[0006] The utility model provides an off-line device for a pulse bag dust collector in view of the problems existing in the prior art.

[0007] The utility model achieves the above-mentioned purpose through the following technical scheme: an offline device of a pulse bag dust collector, comprising a valve body, a valve plate, a guide plate, a cylinder, a connecting rod, and a sliding ball chain; the valve body, the valve plate, and the cylinder are vertically installed, the valve plate is abutted against the inner plate of the upper box body of the pulse bag dust collector, the upper part of the valve body is located in the upper box body, and the lower part of the valve body is arranged in the air duct of the box body in the pulse bag dust collector; the cylinder is installed on the top plate of the upper box body through the cylinder base; the sliding ball chain is arranged on both sides of the valve body; a boss is provided at the bottom of the valve plate; the connecting rod is installed on the side of the valve plate; the connecting rod passes through the top plate of the upper box body and is connected to the boss at the bottom of the valve plate, the connection method adopts a pin shaft connection, the guide plate is welded to the frame on the upper part of the valve body, a valve plate slide groove is provided in the middle part of the valve body, the valve plate is arranged in the middle of the valve plate slide groove, and the valve plate slide groove is equipped with a seal.

[0008] According to an embodiment of the utility model, a slot hole is provided on the valve plate slide slot, and a soft sealing gasket is provided around the slot hole.

[0009] According to the embodiment of the utility model, the sealing member provided in the valve plate slide groove is a hard seal, which is made by metal processing.

[0010] The guide plate is located at one side of the air flow inlet of the pulse bag dust collector.

[0011] The sliding ball chain row is arranged in the direction of the air flow inlet of the pulse bag dust collector.

[0012] The valve body is the part that bears the medium pressure. Sliding ball chain rows are provided on both sides of the valve body. The valve plate moves smoothly and lightly with a small driving torque. The valve plate is a key component for controlling the flow of the medium. The cylinder is the part that drives the valve plate to push and pull.

[0013] The cylinder controls the opening and closing of the offline valve through vertical up and down movement. When the cylinder is de-energized, the valve plate slides to the lower part of the valve body due to gravity, ensuring that the dust collector can function normally.

[0014] The valve plate is installed vertically, and when the offline device is closed, the valve plate is above the valve body.

[0015] When the cylinder moves upward to the limit device, the offline device is closed. When the cylinder loses its power source, the valve plate will slide downward under the action of gravity, so that the offline device is in the open state, protecting the normal operation of the dust collector.

[0016] The valve plate can be abutted against the inner plate of the upper box body, and the upper part of the valve body is in the upper box body, and the lower valve body can be hidden in the air duct of the middle box body, which makes full use of the space of the air duct. The width of the air duct is not affected by the size of the valve plate, the structure is more compact, and the sliding resistance is small when the valve plate moves.

[0017] The beneficial technical effect of the utility model is that the offline device has full-bore flow characteristics, has the characteristics of rapid opening and closing, low flow resistance, and medium cutting. Since a sliding ball chain row is used between the valve body and the valve plate, the cylinder output is smaller. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structure diagram of an offline device of a pulse bag dust collector.

[0019] Figure 2 It is an axial side view of the off-line device structure of a pulse bag dust collector.

[0020] Figure 3 This is a schematic diagram of the installation of the offline device in the bag filter.

[0021] Figure 4 yes Figure 3 Side view of.

[0022] In the figure: 1-valve body; 2-valve plate; 3-guide plate; 4-valve plate slide; 5-cylinder; 6-connecting rod; 7-sliding ball chain; 8-cylinder base; 9-upper box; 10-middle box; 11-air duct; 12-air duct shell; 13-upper box shell; 14-upper box internal partition; 15-filter bag; 16-middle box partition. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the drawings of the specification. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each embodiment of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] like Figure 1 , Figure 2 , an offline device for a pulse bag dust collector, comprising a valve body 1, a valve plate 2, a guide plate 3, a cylinder 5, a connecting rod 6, and a sliding ball chain row 7; the valve body 1, the valve plate 2, and the cylinder 5 are vertically installed, the valve plate 2 is abutted against the inner plate of the upper box body 9 of the pulse bag dust collector, the upper part of the valve body 1 is located in the upper box body 9, and the lower part of the valve body 1 is arranged in the air duct 11 of the box body 10 in the pulse bag dust collector; the cylinder 5 is installed on the top plate of the upper box body 9 through the cylinder base 8; the sliding ball chain row 7 is arranged on both sides of the valve body 1; a boss is provided at the bottom of the valve plate 2; the connecting rod 6 is installed on the side of the valve plate 2; the connecting rod 6 passes through the top plate of the upper box body 9 and is connected to the boss at the bottom of the valve plate 2, and the connection method adopts a pin shaft connection, the guide plate 3 is welded to the frame at the upper part of the valve body 1, a valve plate slide 4 is provided in the middle of the valve body 1, the valve plate 2 is provided in the middle of the valve plate slide 4, and the valve plate slide 4 is provided with a seal.

[0025] The seal can be a soft seal or a hard seal. The valve plate slide 4 is provided with a slot hole, and a soft sealing gasket is arranged around the slot hole. The seal provided with the valve plate slide 4 is a hard seal, which is matched by metal processing.

[0026] like Figure 3 , Figure 4 The pulse bag dust collector includes an upper box body 9, a middle box body 10, an air duct 11, an air duct shell 12, an upper box body shell 13, an upper box body internal partition 14, a filter bag 15; a middle box body partition 16; the valve plate 2 is attached to the upper box body internal partition 14 and the middle box body partition 16; the lower part of the valve body 1 is arranged in the air duct 11 of the middle box body 10 of the pulse bag dust collector; the cylinder 5 is installed on the top plate of the upper box body 9 through the cylinder base 8.

[0027] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. An off-line device for a pulse bag dust collector, characterized in that: The invention comprises a valve body (1), a valve plate (2), a guide plate (3), a cylinder (5), a connecting rod (6), and a sliding ball chain (7); the valve body (1), the valve plate (2), and the cylinder (5) are vertically mounted, the valve plate (2) is abutted against an inner plate of an upper box (9) of a pulse bag dust collector, the upper part of the valve body (1) is located in the upper box (9), and the lower part of the valve body (1) is arranged in an air duct (11) of a box (10) in the pulse bag dust collector; the cylinder (5) is mounted on the top of the upper box (9) through a cylinder base (8). The sliding ball chain row (7) is arranged on both sides of the valve body (1); a boss is arranged at the bottom of the valve plate (2); the connecting rod (6) is installed on the side of the valve plate (2); the connecting rod (6) passes through the top plate of the upper box body (9) and is connected to the boss at the bottom of the valve plate (2), and the connection method adopts a pin connection. The guide plate (3) is welded to the frame at the upper part of the valve body (1); a valve plate slide groove (4) is arranged in the middle of the valve body (1), and the valve plate (2) is arranged in the middle of the valve plate slide groove (4), and the valve plate slide groove (4) is equipped with a sealing member.

2. The off-line device of the pulse bag dust collector according to claim 1 is characterized in that The valve plate slide groove (4) is provided with a slot hole, and a soft sealing gasket is arranged around the slot hole.

3. The off-line device of the pulse bag dust collector according to claim 1 is characterized in that The sealing element provided for the valve plate slide groove (4) is a hard seal, which is made by metal processing.

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