Auxiliary ash removal device for spiral air pipe

Abstract

The utility model discloses an auxiliary dust cleaning device for a spiral air pipe, and relates to the technical field of pipeline dust cleaning, the device comprises a supporting mechanism and a dust cleaning mechanism, the supporting mechanism comprises a shaft pipe, a front spherical shell and a rear spherical shell, and the shaft pipe is provided with a plurality of exhaust holes; the ash removal mechanism comprises a rotary drum and two end covers, and the two end covers and the rotary drum form a closed cavity; the shaft tube is rotationally connected with any end cover; any exhaust hole is positioned in the closed chamber; threads are arranged on the outer wall of the rotary drum; a plurality of air injection through holes capable of obliquely injecting air are formed in any end cover in a circumferential array mode. During dust removal, compressed air flows into the closed cavity and then is sprayed out through the multiple air spraying through holes, the rotary drum rotates rapidly under the air pressure driving effect, and friction between threads of the rotary drum and the pipeline enables the device to move in the pipeline. When the rotating drum moves, the rotating drum is in contact with deposited dust, and compressed air is blown to the deposited dust, so that the balance of the dust can be broken, and the dust can be easily blown away by high-speed wind to achieve the purpose of cleaning.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline dust cleaning, in particular to a spiral air duct auxiliary dust cleaning device. Background Art

[0002] The spiral duct is a dust transport pipe commonly used in central dust removal equipment. The dust in the spiral duct is transported by air moving at high speed toward the dust collector. After the dust enters the horizontal section of the spiral duct main pipe, the direction of gravity and the direction of wind speed are perpendicular to each other at 90 degrees, which makes the dust easily deposited in the spiral duct. Excessive dust deposition will cause the spiral duct to be blocked. In order to solve this problem, the horizontal section of the spiral duct needs to be cleaned frequently.

[0003] The common cleaning method in the prior art is to add a cleaning valve and an inspection door to the main air duct section close to the dust accumulation area, and clean the spiral air duct by reasonably increasing the wind speed in the dust deposition area. However, the above conventional methods are not effective in dealing with heavy dust with a certain degree of stickiness such as cement sculpture dust. The cleaning operation needs to be carried out once a day, and each cleaning time can last for several hours, which is very time-consuming and consumes electricity.

[0004] Therefore, it is necessary to provide a spiral duct auxiliary dust cleaning device to solve the above problems. Utility Model Content

[0005] The utility model aims to overcome the deficiencies of the prior art and provide a spiral air duct auxiliary dust cleaning device.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] A spiral duct auxiliary cleaning device comprises a supporting mechanism and a cleaning mechanism, wherein the supporting mechanism comprises a shaft tube, a front spherical shell and a rear spherical shell, wherein the front spherical shell and the rear spherical shell are arranged on the shaft tube at intervals, and a plurality of exhaust holes are opened on the shaft tube; the cleaning mechanism comprises a rotating drum and two end covers respectively arranged at both ends of the rotating drum, and the two end covers and the rotating drum form a closed chamber; the shaft tube is sequentially passed through the two end covers and is rotatably connected to any of the end covers; any of the exhaust holes is located in the closed chamber; the outer wall of the rotating drum is provided with a thread; there is a gap between any of the end covers and the corresponding spherical shell, and a plurality of jet through holes for tilted jetting are arranged in a circumferential array on any of the end covers.

[0008] Furthermore, in the present invention, the rotating drum is tapered, and the diameter of the rotating drum gradually increases from the front spherical shell to the rear spherical shell.

[0009] Furthermore, in the present invention, the caliber size of any of the above-mentioned air jet through holes close to the above-mentioned closed chamber is larger than the caliber size of any of the above-mentioned air jet through holes close to the corresponding spherical shell.

[0010] Furthermore, in the utility model, the end of the shaft tube where the rear ball shell is mounted is connected to an intake pipe.

[0011] Furthermore, in the utility model, a counterweight block is provided on the shaft tube, and the counterweight block is located in the closed chamber.

[0012] The beneficial effects of the utility model are:

[0013] The utility model provides a spiral duct auxiliary dust cleaning device. During dust cleaning, the device can enter the main air duct from the dust cleaning valve port at the rear of the main air duct. Compressed air with a certain pressure flows into a closed chamber through the air inlet pipe, the shaft pipe and a plurality of exhaust holes in sequence, and then is ejected through a plurality of jet through holes. The structural design of the jet through holes can make the drum rotate rapidly under the action of air pressure drive when the compressed air is ejected through the jet through holes, and then the friction between the thread of the outer wall of the drum and the inner wall of the pipe can be used to make the device move rapidly in the horizontal section of the pipe. The drum contacts the deposited dust while rotating, and the compressed air ejected from the jet through holes can be blown toward the deposited dust, which can break the balance of the settled dust itself, making it easier for the dust to be blown away by the high-speed wind generated by the dust cleaning valve and the inspection door, so as to achieve the purpose of cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the support mechanism of an embodiment of the utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure between the end cover and the rotating drum of an embodiment of the utility model;

[0017] Figure 4 It is a schematic structural diagram of the end cover of an embodiment of the utility model.

[0018] In the figure: 101 - shaft tube; 102 - front ball shell; 103 - rear ball shell; 201 - exhaust hole; 301 - rotating drum; 302 - end cover; 303 - jet hole; 401 - air intake pipe; 501 - counterweight. DETAILED DESCRIPTION

[0019] The following will be combined with the embodiments to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 , the utility model provides a technical solution:

[0021] A spiral duct auxiliary cleaning device comprises a supporting mechanism and a cleaning mechanism, wherein the supporting mechanism comprises a shaft tube 101, a front spherical shell 102 and a rear spherical shell 103, wherein the front spherical shell 102 and the rear spherical shell 103 are arranged on the shaft tube 101 at intervals, and a plurality of exhaust holes 201 are opened on the shaft tube 101; the cleaning mechanism comprises a rotating drum 301 and two end covers 302 respectively arranged at both ends of the rotating drum 301, wherein the two end covers 302 and the rotating drum 301 form a closed chamber; the shaft tube 101 is sequentially penetrated through the two end covers 302 and is rotatably connected to any end cover 302; any exhaust hole 201 is located in the closed chamber; the outer wall of the rotating drum 301 is provided with threads; there is a gap between any end cover 302 and the corresponding spherical shell, and a plurality of jet through holes 303 capable of tilted jetting are arranged in a circumferential array on any end cover 302.

[0022] In some implementations of this embodiment, the drum 301 is tapered, and the diameter of the drum 301 gradually increases from the front spherical shell 102 to the rear spherical shell 103 .

[0023] In some implementations of this embodiment, the caliber size of any jet hole 303 close to the closed chamber is larger than the caliber size close to the corresponding spherical shell, and is rotated 30° from the inside (closed chamber) to the outside. This structure can tilt the jet to make the drum 301 rotate.

[0024] In order to facilitate the delivery of compressed air with a certain pressure into the closed chamber, an air inlet pipe 401 is connected to the end of the ball shell 103 after the shaft tube 101 is installed. During operation, the air inlet pipe 401 is connected to a compressed air hose, and the compressed air can flow into the closed chamber through a number of exhaust holes 201 on the shaft tube 101, and the compressed air with a certain pressure finally flows out through a number of jet holes 303 to drive the rotating drum 301 to rotate. At the same time, by fixing the length of the compressed air hose, the device can be rotated in place to clean the deposited dust.

[0025] In addition, a counterweight 501 is installed on the shaft tube 101, and the counterweight 501 is located in the closed chamber. The support mechanism achieves its own stability through the counterweight 501, and the counterweight 501 can lower the center of gravity of the support mechanism, increase the counterweight of the support mechanism, and prevent the support mechanism from rotating with the drum 301 during dust cleaning.

[0026] Working principle:

[0027] During dust cleaning, the device can enter the main air duct from the dust cleaning valve port at the rear of the main air duct, and the compressed air with a certain pressure flows into the closed chamber through the air inlet pipe 401, the shaft tube 101 and the plurality of exhaust holes 201 in sequence, and then is ejected through the plurality of jet holes 303. The structural design of the jet holes 303 can make the drum 301 rotate rapidly under the action of air pressure drive when the compressed air is ejected through the jet holes 303, and then the friction between the threads of the outer wall of the drum 301 and the inner wall of the pipe can be used to make the device move rapidly in the horizontal section of the pipe. The drum 301 contacts the deposited dust while rotating, and the compressed air ejected from the jet holes 303 can be blown toward the deposited dust, which can break the balance of the settled dust itself, making it easier for the dust to be blown away by the high-speed wind generated by the dust cleaning valve and the inspection door, so as to achieve the purpose of cleaning.

[0028] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A spiral duct auxiliary dust cleaning device, characterized in that: The invention comprises a supporting mechanism and a cleaning mechanism, wherein the supporting mechanism comprises a shaft tube (101), a front ball shell (102) and a rear ball shell (103), wherein the front ball shell (102) and the rear ball shell (103) are arranged on the shaft tube (101) at intervals, and the shaft tube (101) is provided with a plurality of exhaust holes (201); the cleaning mechanism comprises a rotating drum (301) and two end covers (302) respectively arranged at two ends of the rotating drum (301), wherein the two end covers (302) The shaft tube (101) and the rotating drum (301) form a closed chamber; the shaft tube (101) is sequentially passed through the two end covers (302) and is rotatably connected to any of the end covers (302); any of the exhaust holes (201) is located in the closed chamber; the outer wall of the rotating drum (301) is provided with a thread; there is a gap between any of the end covers (302) and the corresponding spherical shell, and a plurality of jet through holes (303) capable of tilting jets are provided in a circumferential array on any of the end covers (302).

2. The spiral duct auxiliary dust cleaning device according to claim 1, characterized in that: The rotating drum (301) has a taper, and the diameter of the rotating drum (301) gradually increases from the front spherical shell (102) to the rear spherical shell (103).

3. The spiral duct auxiliary dust cleaning device according to claim 2, characterized in that: The caliber size of any of the air injection through holes (303) close to the closed chamber is larger than the caliber size of any of the air injection through holes (303) close to the corresponding spherical shell.

4. The spiral duct auxiliary dust cleaning device according to claim 1, characterized in that: The end of the shaft tube (101) on which the rear ball shell (103) is mounted is connected to an air intake pipe (401).

5. The spiral duct auxiliary dust cleaning device according to claim 4, characterized in that: A counterweight block (501) is provided on the shaft tube (101), and the counterweight block (501) is located in the sealed chamber.

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