CN219209359U

CN219209359U - Dust collection conduit

Info

Publication number: CN219209359U
Application number: CN202122433973.2U
Authority: CN
Inventors: 张建武; 胡会会; 陈道兵
Original assignee: Anhui Zhong Yan Electric Co ltd
Current assignee: Anhui Zhong Yan Electric Co ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2023-06-20
Anticipated expiration: 2031-10-09

Abstract

The utility model discloses a dust collection duct, which relates to the technical field of filtration and dust collection. The dust collection guide pipe can be assembled in a sliding way, and can only slide along the axial direction of the dust collection guide pipe after assembly without rotating, so that the positions of a suction nozzle and a pipeline connected with the dust collection guide pipe can be kept stable.

Description

Dust collection conduit

Technical Field

The utility model relates to the technical field of filtration and dust removal, in particular to a dust collection guide pipe of a filtration and dust removal device.

Background

In filter dust removal devices, filter cartridges are often used to filter dust from a gas stream. A high efficiency filtering dust removing apparatus as disclosed in the authority publication number CN210278585U filters dust-laden air through a filter cartridge and sucks dust blocked on the inner wall of the filter cartridge through a suction nozzle, thereby maintaining the apparatus to filter efficiently.

The suction nozzle of the device is movably connected with the lifting frame through the guide pipe, and the suction nozzle is elastically connected with the lifting frame through the elastic piece, however, the existing guide pipe can rotate when the suction nozzle moves, so that the suction nozzle cannot be tightly attached to the inner wall of the filter cylinder, and the dust collection effect is affected.

Disclosure of Invention

In order to solve the technical problems in the background technology, the utility model provides a dust collection duct.

The utility model provides a dust collection duct, wherein at least one positioning plane is arranged on the outer wall of the dust collection duct along the axial direction of the dust collection duct.

Preferably, one end of the dust collection conduit is provided with a flange, and the flange is provided with a threaded hole.

Preferably, the outer wall of the dust collection conduit is provided with a limit threaded hole for installing a limit screw.

Preferably, the other end of the dust collection conduit is provided with a section of interface section, and the outer diameter of the interface section is smaller than the maximum outer diameter of the dust collection conduit.

The beneficial effects are that:

in the utility model, the dust collection duct can be assembled in a sliding way, and can only slide along the axial direction of the dust collection duct after assembly without rotating, so that the positions of a suction nozzle and a pipeline connected with the dust collection duct can be kept stable.

Drawings

Fig. 1 is a schematic structural diagram of a filtering dust-removing device according to an embodiment;

FIG. 2 is an enlarged view of FIG. 1 at A;

figure 3 is an axial cross-sectional view of a suction catheter in accordance with an embodiment;

figure 4 is a rear view of the suction conduit;

FIG. 5 is a rear view of the suction conduit with the flange removed;

figure 6 is an axial cross-sectional view of the suction conduit of figure 5;

fig. 7 is a schematic diagram of the assembly of the suction duct and the nozzle.

Detailed Description

Referring to fig. 1-7, according to the present embodiment, there is provided a dust removing and filtering device, which includes a housing 1 and a filter cartridge 2, wherein the filter cartridge 2 is fixedly installed in an inner cavity of the housing 1, an opening is provided at an upper end of the filter cartridge 2, a lower end of the filter cartridge 2 is sealed, a filter screen is provided on a sidewall of the filter cartridge 2, a partition plate 3 is fixed between a peripheral side of an upper end of the filter cartridge 2 and an inner wall of the housing 1, a lower end of the filter cartridge 2 is fixed to the housing 1 through a lower bracket 4, specifically, the lower bracket 4 is placed on a supporting flange of the inner wall of the housing 1, and the lower bracket 4 is fixed to a bracket fixing member 15 welded to the inner wall of the housing 1. The top of the shell 1 is provided with an air inlet 101 communicated with the opening at the upper end of the filter cylinder 2, an exhaust fan 5 is also arranged in the inner cavity of the shell 1, the exhaust fan 5 is positioned below the filter cylinder 2, and the shell 1 is provided with an air outlet 102 communicated with the air outlet end of the exhaust fan 5.

When the filtering dust removing device works, dust-containing gas enters the filter cartridge 2 through the air inlet 101 of the shell 1, the gas removes dust through the filtering action of the side wall of the filter cartridge 2, and the dust-removed gas is discharged to the outside of the shell 1 through the exhaust fan 5 below the filter cartridge 2.

As shown in fig. 1 and 2, in the filter dust removing device of the present embodiment, a filter screen cleaning mechanism is further installed in the filter cartridge 2. The filter screen cleaning mechanism mainly comprises a driving mechanism, a suction nozzle 6 and a negative pressure adsorption system, wherein the driving mechanism is used for driving the suction nozzle 6 to move on the inner wall of the filter cartridge 2, and the negative pressure adsorption system can suck away dust trapped on the inner wall of the filter cartridge 2 through the suction nozzle 6, so that the filter cartridge 2 can keep high-efficiency filtration.

The driving mechanism comprises a screw rod 7, a guide rotary drum 8, a lifting frame 9 and a motor 10. The guide rotary drum 8 is rotatably sleeved on the screw rod 7, the screw rod 7 and the guide rotary drum 8 vertically penetrate through the filter cylinder 2, the guide rotary drum 8 is in rotary fit with the filter cylinder 2, and the lower end of the screw rod 7 is fixed on the lower bracket 4. The guide drum 8 is provided with a guide groove 801 along the length direction thereof, the lifting frame 9 is in sliding fit with the guide groove 801, and the lifting frame 9 is mounted on the screw rod 7 through a nut. The motor 10 is fixedly arranged on the lower bracket 4, and an output shaft of the motor 10 is connected with the lower end of the guide rotary drum 8 and can drive the guide rotary drum 8 to rotate.

The suction nozzle 6 is connected with a suction duct 11, and the suction nozzle 6 is mounted on the lifting frame 9 through the suction duct 11, the front end of the suction port 601 of the suction nozzle 6 is abutted against the inner wall of the filter cartridge 2, and the suction nozzle 6 is communicated with a negative pressure adsorption system through the suction duct 11, and the negative pressure adsorption system of the embodiment is preferably a centrifugal fan (not shown in the figure) arranged outside the casing 1.

According to the filter screen cleaning mechanism of the embodiment, when the motor 10 drives the guide rotary drum 8 to rotate, the lifting frame 9 can rotate along with the guide rotary drum 8, and because the screw rod 7 is fixed, the lifting frame 9 can move upwards or downwards along the screw rod 7 through the nut, so that the driving mechanism can drive the suction nozzle 6 to reciprocate up and down while rotating along the circumferential direction of the inner wall of the filter cartridge 2, the suction nozzle 6 can clean dust trapped on the inner wall of the whole filter cartridge 2, and the dust cleaning work of the filter cartridge 2 can be efficiently completed.

As shown in fig. 2-7, according to the dust suction duct 11 of the present embodiment, a flange 1101 is fixed to the front end of the dust suction duct 11, a screw hole 1102 is provided in the flange 1101, the rear end of the suction port 601 of the suction nozzle 6 communicates with the front end of the dust suction duct 11, a counter bolt hole 602 is provided in the front end surface of the suction nozzle 6, a bolt is fitted into the counter bolt hole 602 from the front end of the suction nozzle 6, and the bolt is connected with the screw hole 1102 of the flange 1101, so that the suction nozzle 6 and the dust suction duct 11 can be fixedly mounted together.

The suction nozzle 6 is movably arranged on the lifting frame 9 through a dust suction conduit 11. Specifically, a positioning plane 1103 is disposed on the outer wall of the dust collection conduit 11 along the axial direction thereof, a fixing seat 901 is disposed at the front end of the lifting frame 9, a through hole capable of being matched with the outer wall of the dust collection conduit 11 is disposed on the fixing seat 901, the dust collection conduit 11 is mounted on the through hole of the fixing seat 901, and the positioning plane 1103 enables the dust collection conduit 11 to slide on the fixing seat 901 only along the axial direction of the dust collection conduit 11 and cannot rotate relative to the fixing seat 901. By adopting the connection mode, the suction nozzle 6 can be kept stable during working and cannot rotate.

A pressure spring 12 is sleeved outside the dust collection conduit 11, the pressure spring 12 is positioned between the fixed seat 901 and the flange 1101, and the pressure spring 12 can enable the suction nozzle 6 to closely lean against the inner wall of the filter cylinder 2 through elasticity. Still be equipped with spacing screw hole 1104 on the dust absorption pipe 11 outer wall, spacing screw hole 1104 is used for installing the spacing screw on dust absorption pipe 11, and spacing screw can restrict dust absorption pipe 11 along the gliding stroke of fixing base 901, can prevent that dust absorption pipe 11 and suction nozzle 6 from falling from fixing base 901 front end because of the elasticity of compression spring 12. The rear end of the dust collection conduit 11 is provided with a section of interface section 1105 with a smaller outer diameter, and the dust collection conduit 11 can be connected with a pipeline through the interface section 1105 so as to be connected with a negative pressure adsorption system.

In a further embodiment, as shown in fig. 1, an upper bracket 13 is fixedly arranged above the filter cartridge 2, a fixed tube head 14 is fixedly arranged on the upper bracket 13, a rotating tube head 802 is fixedly arranged at the upper end of the guiding rotary drum 8, the lower end of the fixed tube head 14 is rotationally communicated with the upper end of the rotating tube head 802, the upper end of the fixed tube head 14 is communicated with the negative pressure adsorption system through a pipeline, and one side of the rotating tube head 802 is communicated with the rear end of the dust collection conduit 11 through a pipeline.

In this example, the tube of the negative pressure adsorption system is divided into two sections by the rotational fitting 802 and the fixed fitting 14, wherein one section is located inside the filter cartridge 2 and can move together with the suction nozzle 6, without obstructing the movement of the suction nozzle 6 inside the filter cartridge 2.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. A dust collection duct, characterized in that the outer wall of the dust collection duct is provided with at least one positioning plane (1103) along the axial direction thereof.

2. A suction duct according to claim 1, characterized in that one end of the suction duct is provided with a flange (1101), and that the flange (1101) is provided with threaded holes (1102).

3. A suction duct according to claim 1, characterized in that the outer wall of the suction duct is provided with a limit screw hole (1104) for mounting a limit screw.

4. A suction duct according to claim 2, characterized in that the suction duct is provided at the other end with an interface section (1105), the outer diameter of the interface section (1105) being smaller than the maximum outer diameter of the suction duct (11).