Connecting device of high-temperature filter bag dust removal blowing pipe

Abstract

The utility model discloses a connecting device of a high-temperature filter bag dust removal blowing pipe, which comprises two pipe clamp bodies, the inner sides of the pipe clamp bodies are provided with sealing gaskets matched with the pipe clamp bodies, the two ends of the pipe clamp bodies are bent to form horizontal sections I, the two ends of the sealing gaskets are provided with horizontal sections II positioned on the inner sides of the corresponding horizontal sections I, and the horizontal sections I and the horizontal sections II are connected with each other. The horizontal sections I at the front ends of the two pipe clamp bodies are fixedly connected through a plurality of fasteners, and the horizontal sections I at the rear ends of the two pipe clamp bodies are fixedly connected through a plurality of fasteners. Compared with the prior art, the problem that after a conventional rubber hose is used for connection on a high-temperature filter bag dust collector, dislocation, tearing and falling occur, an air bag needs to be wholly hoisted and replaced, and the replacement time is shortened can be solved. The construction amount is large, and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of high-temperature filter bag dust removal, in particular to a connecting device for a high-temperature filter bag dust removal blowing pipe. Background Art

[0002] In the design process of the filter bag dust removal system, it is necessary to use an air bag and a back-blowing pipe to introduce compressed air into the filter bag for back-blowing to achieve the dust removal effect. An air bag is equipped with multiple back-blowing pipes, and the distance between each two back-blowing pipes is small. Since one end of the compressed air back-blowing pipe is fixed to the inside of the air bag and the other end is fixed to the dust removal system shell, in order to facilitate manufacturing, transportation and installation, the back-blowing pipe needs to be disconnected and divided into two sections during design, with a spacing of 10mm~20mm between the two sections. In order to prevent the back-blowing compressed air from leaking out from the disconnection, a round rubber hose with a certain thickness and strength is conventionally used to cover the two ends of the two back-blowing pipes, and the two ends of the rubber hose are fastened with metal clamps to achieve a sealing effect. This connection method using rubber hoses can work stably for a long time in cloth fiber filter bag dust removal systems at room temperature and below 250℃, but when the temperature exceeds 300℃, the two separated backflush pipes will be misaligned due to thermal expansion displacement; in addition, due to the high temperature, the filter bag needs to be replaced with metal material, and the backflush compressed air pressure will increase. If rubber hoses are still used for connection, the higher pressure compressed air will flush the dislocated connecting pipes and produce strong vibrations, which will accelerate the aging of the rubber pipes and shorten their service life, resulting in tearing and falling off, thus affecting the dust removal effect of the dust removal system. When a problem occurs and needs to be replaced, due to the small interval between the two pipe sections, the rubber hose cannot be put into the backflush pipe. When a rubber hose has a problem, the entire air bag needs to be lifted to leave enough space for replacement, which is a large workload and a long maintenance time, and the air supply valve on the overall air bag needs to be closed, affecting the dust removal efficiency of the system. Summary of the invention

[0003] The purpose of the utility model is to solve the problems in the prior art and to propose a connection device for a high-temperature filter bag dust removal blowing pipe, which can solve the problems of misalignment, tearing and falling off caused by connecting a conventional rubber hose to a high-temperature filter bag dust collector, and the need to lift and replace the air bag as a whole, resulting in a large amount of construction and a series of other problems.

[0004] To achieve the above-mentioned purpose, the utility model proposes a connection device for a high-temperature filter bag dust removal blowing pipe, comprising two pipe clamp bodies, the inner sides of the pipe clamp bodies are provided with sealing gaskets matching therewith, both ends of the pipe clamp bodies are formed with horizontal sections I by bending, both ends of the sealing gasket are provided with horizontal sections II located on the inner sides of the corresponding horizontal sections I, the horizontal sections I at the front ends of the two pipe clamp bodies are fixedly connected by a plurality of fasteners, and the horizontal sections I at the rear ends of the two pipe clamp bodies are fixedly connected by a plurality of fasteners.

[0005] Preferably, both upper and lower ends of the sealing gasket are provided with positioning protrusions, and the inner side of the tube clamp body is provided with positioning grooves corresponding to and matching the positioning protrusions one by one.

[0006] Preferably, the horizontal section I is provided with a plurality of vertically arranged through holes, and the through holes penetrate the corresponding horizontal section II.

[0007] Preferably, the through hole is a square hole.

[0008] Preferably, the fastener comprises a screw body, an anti-rotation portion, a screw head and a nut, the upper end of the screw body is provided with an anti-rotation portion matching the through hole, the upper end of the anti-rotation portion is provided with a screw head, and the screw body is sleeved with a nut threadedly connected thereto.

[0009] Preferably, the sealing gasket is made of silicone rubber.

[0010] The beneficial effects of the utility model are as follows: the utility model is provided with a sealing gasket matching with the inner side of the tube clamp body, and both ends of the tube clamp body are formed with a horizontal section I by bending, and both ends of the sealing gasket are provided with a horizontal section II located inside the corresponding horizontal section I, and the horizontal sections I at the front ends of the two tube clamp bodies are fixedly connected by a plurality of fasteners, and the horizontal sections I at the rear ends of the two tube clamp bodies are fixedly connected by a plurality of fasteners. Through this connection method, the two sections of the back-blowing pipes can be prevented from being misaligned, and the aging, extrusion and deformation of the sealing rubber ring under high temperature and large extrusion pressure can be prevented, and the service life is long. When the sealing gasket needs to be replaced, the fasteners can be conveniently and quickly unscrewed, which is convenient to operate and has no effect on other surrounding back-blowing pipes. There is no need to lift the entire air bag, the maintenance workload is small, and the impact on the dust removal efficiency of the system is very small. Compared with the prior art, it can solve a series of problems such as the need to lift and replace the air bag as a whole after the conventional rubber hose connection on the high-temperature filter bag dust collector is misaligned, torn and detached, resulting in a large amount of construction.

[0011] 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

[0012] Figure 1 This is a structural schematic diagram of a connection device for a high-temperature filter bag dust removal spray pipe of the utility model;

[0013] Figure 2 It is a schematic diagram of a sealing gasket arranged on a pipe clamp body.

[0014] In the figure: 1-tube clamp body, 2-sealing gasket, 3-horizontal section I, 4-horizontal section II, 5-fastener, 6-positioning protrusion, 7-positioning groove, 8-through hole, 51-screw body, 52-anti-rotation part, 53-screw head, 54-nut. DETAILED DESCRIPTION

[0015] See also Figure 1 The utility model discloses a connection device for a high-temperature filter bag dust removal blowing pipe, comprising two pipe clamp bodies 1, the inner sides of the pipe clamp bodies 1 are provided with sealing gaskets 2 matched therewith, both ends of the pipe clamp bodies 1 are formed with horizontal sections I3 by bending, both ends of the sealing gasket 2 are provided with horizontal sections II4 located on the inner sides of the corresponding horizontal sections I3, the horizontal sections I3 at the front ends of the two pipe clamp bodies 1 are fixedly connected by a plurality of fasteners 5, and the horizontal sections I3 at the rear ends of the two pipe clamp bodies 1 are fixedly connected by a plurality of fasteners 5.

[0016] See also Figure 2 The upper and lower ends of the sealing gasket 2 are both provided with positioning protrusions 6, and the inner side of the tube clamp body 1 is provided with positioning grooves 7 corresponding to and matching the positioning protrusions 6 one by one.

[0017] See also Figure 2 The horizontal section I3 is provided with a plurality of vertically arranged through holes 8, and the through holes 8 penetrate the corresponding horizontal section II4.

[0018] The through hole 8 is a square hole.

[0019] See also Figure 1 The fastener 5 includes a screw body 51, an anti-rotation portion 52, a screw head 53 and a nut 54. The upper end of the screw body 51 is provided with an anti-rotation portion 52 that matches the through hole 8, the upper end of the anti-rotation portion 52 is provided with a screw head 53, and the screw body 51 is sleeved with a nut 54 that is threadedly connected to it.

[0020] The sealing gasket 2 is made of silicone rubber.

[0021] Working process of this utility model:

[0022] During the operation of the connection device for the high-temperature filter bag dust removal blowing pipe of the utility model, two pipe clamp bodies 1 with sealing pads 2 fixed on the inner sides are buckled at the connection between the upper pipe section 9 and the lower pipe section 10, and then the screw body 51 is passed through the corresponding through hole 8, and the anti-rotation part 52 is ensured to be located in the corresponding through hole 8, and then the nut 54 is screwed onto the corresponding screw body 51 and tightened.

[0023] The two pipe clamp bodies 1 are used for fastening connection between the upper pipe section 9 and the lower pipe section 10 . After connection, they have strong rigidity and can prevent the upper pipe section 9 and the lower pipe section 10 from being misaligned.

[0024] The sealing gasket 2 is made of silicone rubber, which can prevent aging, cracking and deformation under high temperature and large extrusion pressure, and has a long service life.

[0025] The upper and lower ends of the sealing gasket 2 are both provided with positioning protrusions 6, and the inner side of the tube clamp body 1 is provided with positioning grooves 7 that correspond to and cooperate with the positioning protrusions 6 one by one, which can prevent the tube clamp body 1 from excessively squeezing and cracking the sealing gasket 2 and improve the fixing reliability of the sealing gasket 2.

[0026] The upper end of the screw body 51 is provided with an anti-rotation portion 52 that matches the through hole 8, which effectively solves the problem that the rear end needs to be fixed when fastening with round bolts, but the operation is difficult due to the small spacing of the backflush pipes.

[0027] 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 connection device for a high-temperature filter bag dust removal blowing pipe, characterized in that: The invention comprises two tube clamp bodies (1), wherein the inner sides of the tube clamp bodies (1) are provided with sealing gaskets (2) matched therewith, the two ends of the tube clamp bodies (1) are formed with horizontal sections I (3) by bending, and the two ends of the sealing gasket (2) are provided with horizontal sections II (4) located inside the corresponding horizontal sections I (3), the horizontal sections I (3) at the front ends of the two tube clamp bodies (1) are fixedly connected by a plurality of fasteners (5), and the horizontal sections I (3) at the rear ends of the two tube clamp bodies (1) are fixedly connected by a plurality of fasteners (5).

2. A connection device for a high-temperature filter bag dust removal blowing pipe according to claim 1, characterized in that: The sealing pad (2) is provided with positioning protrusions (6) at both upper and lower ends, and the inner side of the tube clamp body (1) is provided with positioning grooves (7) corresponding to and matching the positioning protrusions (6) one by one.

3. A connection device for a high-temperature filter bag dust removal blowing pipe according to claim 1, characterized in that: The horizontal section I (3) is provided with a plurality of vertically arranged through holes (8), and the through holes (8) penetrate the corresponding horizontal section II (4).

4. A connection device for a high-temperature filter bag dust removal blowing pipe as claimed in claim 3, characterized in that: The through hole (8) is a square hole.

5. A connection device for a high-temperature filter bag dust removal blowing pipe as claimed in claim 3, characterized in that: The fastener (5) comprises a screw body (51), an anti-rotation portion (52), a screw head (53) and a nut (54); the upper end of the screw body (51) is provided with an anti-rotation portion (52) that matches the through hole (8); the upper end of the anti-rotation portion (52) is provided with a screw head (53); and the screw body (51) is sleeved with a nut (54) that is threadedly connected thereto.

6. A connection device for a high-temperature filter bag dust removal blowing pipe according to any one of claims 1 to 5, characterized in that: The sealing gasket (2) is made of silicone rubber.

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