Novel rotary blowing deashing device for bag-type dust collector

Abstract

The utility model discloses a novel rotary blowing ash removal device for a bag-type dust collector, and relates to the technical field of air pollution control. The device comprises a pulse valve, a driving device, a gas storage tank, a rotary blowing mother pipe and a rotary blowing pipe, the driving device and the rotary blowing mother pipe are connected through a middle connecting pipe and a metal corrugated pipe, the two ends of the metal corrugated pipe are connected with the middle connecting pipe through flange bolts, the rotary blowing pipe and the middle connecting pipe are connected and fixed through a pull rod, and the pull rod is connected with the gas storage tank. The rotary blowing device is characterized in that holes are uniformly distributed in the rotary blowing pipe, and the hole diameter is 76mm * 50mm. According to the utility model, by adjusting the structure of the rotary blowing deashing device, the blowing system is prevented from being damaged due to errors in mounting and manufacturing precision, meanwhile, the rotary blowing deashing device is more convenient to overhaul and maintain, and the performance of the whole dedusting system is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air pollution control, in particular to a novel rotary jet dust cleaning device for a bag dust collector. Background Art

[0002] As a highly efficient air purification device, the emission standards of bag filters have always received extensive attention. As an important tool to cope with this change, the emission standards of bag filters have also been adjusted accordingly. At present, the emission standards of bag filters generally require that the particle emission concentration reach 5mg / m 3 The following. This standard upgrade makes it increasingly difficult for traditional electrostatic precipitators to meet emission standards, prompting many companies to choose to upgrade their dust removal equipment to bag filters. A major advantage of bag filters is that their emission concentration is stable and is not affected by changes in dust resistivity, which makes them perform well in dealing with strict emission standards.

[0003] At present, most of the bag dust collectors in my country adopt the line-jet structure, and compressed air is used as the dust cleaning medium. Under the same large air volume, the line-jet dust collector occupies a large area and has a high structural cost. Therefore, the rotary jet bag dust collector has emerged, which is characterized by small footprint, low investment and operation costs, and low-pressure dust cleaning mode, which is suitable for working conditions with large air volume, high dust, and high emission precision requirements.

[0004] Generally, the driving device of the rotary jet dust collector is driven by the motor pinion to drive the large gear. The large gear and the middle connecting pipe and the rotary jet mother pipe rotate together. The large gear and the rotary jet mother pipe are connected with bolts. Generally, the middle connecting pipe is relatively long and the installation position of the rotary jet support is relatively high. During the installation and production process, it is easy to cause the upper and lower parts to be out of center due to errors or poor quality. After the motor rotates for a period of time, it will become stuck or even stop, causing the rotating motor in the driving device to burn out or the rotary jet mother pipe to be damaged. Utility Model Content

[0005] In order to solve the problems existing in the above-mentioned prior art, the purpose of the utility model is to provide a new rotary jet cleaning device for bag dust collector. It adopts a low-pressure cleaning mode, occupies a small area, has low investment and operating costs, is simple and convenient to maintain, and is suitable for working conditions with large air volume, high dust, and high emission precision requirements.

[0006] In order to achieve the above-mentioned purpose of the invention, the technical solution of the utility model is implemented in the following way: a new type of rotary jet cleaning device for bag dust collector, which includes a pulse valve, a driving device, an air storage tank, a rotary jet mother pipe, and a rotary jet pipe. The driving device and the rotary jet mother pipe are connected to the metal bellows through an intermediate connecting pipe. The two ends of the metal bellows and the intermediate connecting pipe are connected with flange bolts. The rotary jet pipe and the intermediate connecting pipe are connected and fixed by a pull rod. It is characterized in that holes are evenly distributed on the rotary jet pipe, and the hole size is 76mm×50mm.

[0007] In the novel rotary jet dust cleaning device for bag filter, the rotary jet mother pipe, metal bellows, intermediate connecting pipe, driving device and air storage tank are coaxially connected in sequence.

[0008] Compared with the prior art, the utility model has the following advantages and positive effects:

[0009] (1) The various parts of the sootblower are coaxially connected in sections. During use, the damaged parts can be independently removed and replaced without affecting the non-damaged parts, avoiding the need to completely disassemble the rotating drive device. This makes maintenance and disassembly easy and reduces workload.

[0010] (2) The addition of the metal bellows changes the entire device from the original overall rigid connection to a local flexible connection. When the drive device becomes stuck, it will only cause damage to the metal bellows. Maintenance personnel can troubleshoot and replace the metal bellows in a short time, allowing the rotary jet cleaning device to be put into use quickly.

[0011] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] In the figure: 1. Rotary blowing pipe; 2. Rotary blowing mother pipe; 3. Metal bellows; 4. Intermediate connecting pipe; 5. Driving device; 6. Air storage tank; 7. Pulse valve; 8. Pull rod. DETAILED DESCRIPTION

[0014] See also Figure 1 The utility model is a new rotary spray cleaning device for bag dust collector, which includes a pulse valve 7, a driving device 5, an air storage tank 6, a rotary spray mother pipe 2, and a rotary spray pipe 1. The driving device 5 and the rotary spray mother pipe 2 are connected to the metal bellows 3 through an intermediate connecting pipe 4. The two ends of the metal bellows 3 and the intermediate connecting pipe 4 are connected with flange bolts. The rotary spray pipe 1 and the intermediate connecting pipe 4 are connected and fixed by a pull rod 8. It is characterized in that holes are evenly distributed on the rotary spray pipe 1, and the hole size is 76mm×50mm.

[0015] When the utility model is in operation, compressed air enters the air storage tank 6. After the pulse valve 7 is opened, the compressed air in the air storage tank 6 passes through the driving device 5, the intermediate connecting pipe 4, the metal bellows 3, the rotary blowing mother pipe 2 in sequence, and is ejected through the rotary blowing pipe 1 to the filter bag, causing the filter bag to vibrate and remove the dust accumulated on the filter bag. The driving device 5 drives the rotary blowing pipe 1 to rotate at a constant speed to ensure that the compressed air is blown to the filter bags at different positions. The metal bellows 3 is made of stainless steel, and the two ends of the metal bellows 3 and the intermediate connecting pipe 4 are connected with flange bolts.

[0016] Through the above process, when the driving device 5 becomes stuck or stuck, it will only cause damage to the metal bellows 3, avoiding burning of the driving motor or damage to the rotary blowing mother pipe 2 due to overload. The maintenance personnel can eliminate the fault in a short time, maintain the driving device and replace the metal bellows 3 at the same time, so that the rotary blowing cleaning device can be put into use quickly.

Claims

1. A novel rotary spray cleaning device for a bag filter, comprising a pulse valve (7), a driving device (5), an air storage tank (6), a rotary spray mother pipe (2), and a rotary spray pipe (1), wherein the driving device (5) and the rotary spray mother pipe (2) are connected via an intermediate connecting pipe (4) and a metal bellows (3), the two ends of the metal bellows (3) and the intermediate connecting pipe (4) are connected by flange bolts, and the rotary spray pipe (1) and the intermediate connecting pipe (4) are connected and fixed by a tie rod (8), characterized in that The rotating blowing pipe (1) is evenly distributed with holes, and the hole diameter size is 76mm×50mm.

2. The new rotary jet cleaning device according to claim 1 is characterized in that The rotary injection mother pipe (2), the metal bellows (3), the intermediate connecting pipe (4), the driving device (5), and the gas storage tank (6) are coaxially connected in sequence.

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