Rapidly cleaned bag-type dust collector

Abstract

The utility model discloses a bag-type dust collector capable of being quickly cleaned, and belongs to the technical field of bag-type dust collectors. Comprising a main pipe, an air pipe is installed on the bottom face of the main pipe in a penetrating mode, the air pipe is vertically arranged in a telescopic mode, a spray head which is provided with an air outlet channel and can horizontally rotate is installed at the bottom end of the air pipe, fins in an annular array are installed on the inner side of a shell, and the fins divide the middle space of the shell into a plurality of uniform air passing channels. The tops of the fins are provided with inclined plates with the same inclination angle, and the air outlet holes are arranged close to the leeside of the inclined plates. Through structural improvement, the air pipe is vertically and telescopically arranged, when air enters the air pipe, the inner pressure of the air pipe is increased, the air pipe can extend into the filter bag, the filter bag and the cage frame do not need to move up and down, inclined plates with consistent inclination angles are installed at the tops of the fins, the shell is driven by airflow to rotate, autorotation air injection is carried out, a driving structure is simplified, and the structure is further simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of bag dust collectors, and more specifically to a fast-cleaning bag dust collector. Background Art

[0002] The bag dust collector is a dry dust filtering device, which is suitable for capturing fine, dry, non-fibrous dust. The main working principle of the bag dust collector is to introduce the dust-laden gas into the bag dust collector box through the air inlet. The dust-laden gas moves toward the filter bag under the gravitational force of the induced draft fan. The dusty gas is adsorbed on the filter bag. After purification, the gas is discharged from the air outlet, thereby achieving the effect of air purification.

[0003] The existing patent document with publication number CN215276259U and patent name "Quick-cleaning Bag Dust Collector" discloses that static electricity can be removed by lifting the dust collector body, extending the air duct into the filter bag, and using the fan to blow out the ionized wind. However, in actual use, because the dust collector body includes densely arranged filter bags and a metal cage, the lifting and lowering of the dust collector body consumes huge energy and the cleaning cost of the filter bags is too high. In view of this, we propose a quick-cleaning bag dust collector. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] The purpose of the utility model is to provide a fast-cleaning bag dust collector to solve the problems raised in the above-mentioned background technology.

[0006] 2. Technical solution

[0007] A fast-cleaning bag dust collector comprises a main pipe, a wind duct is installed through the bottom surface of the main pipe, the wind duct is vertically telescopically arranged, and a nozzle with an air outlet channel and horizontally rotatable is installed at the bottom end of the wind duct.

[0008] Preferably, the air duct includes a hollow fixed pipe and a relay pipe vertically slidably inserted in the middle of the fixed pipe, and a tension spring is installed between the relay pipe and the fixed pipe.

[0009] Preferably, a plurality of relay tubes are provided, the inner diameters of the relay tubes gradually decrease, and all the relay tubes are coaxially slidably sleeved.

[0010] Preferably, the tops of the relay pipe and the fixed pipe are fixedly mounted with end sleeves 1, the inner walls of the bottom ends of the relay pipe and the fixed pipe are fixedly mounted with end sleeves 2, a plurality of tension springs are provided, and the tension springs are fixed between adjacent end sleeves 1.

[0011] Preferably, the nozzle is located inside the bottom end of the innermost relay pipe, and the nozzle includes a shell, an air outlet opened at the lower part of the shell, and a clamping ring installed in the middle of the outer side of the shell, and the clamping ring is fixedly connected to the relay pipe.

[0012] Preferably, a ring-shaped array of fins is installed inside the shell, and the fins divide the middle space of the shell into a plurality of uniform air passages.

[0013] Preferably, an inclined plate with a consistent inclination angle is installed on the top of the fin, and the air outlet is arranged adjacent to the leeward side of the inclined plate.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] 1. The utility model has improved structure, and the air duct can be retracted vertically. When the air duct is inlet, the pressure inside the air duct increases and the air duct will stretch into the filter bag, without the need for the filter bag and the cage to move up and down. In addition, an inclined plate with a consistent inclination angle is installed on the top of the fin, and the shell is driven to rotate by the airflow to perform self-rotation jet injection, simplifying the driving structure and further simplifying the structure.

[0017] 2. Optimize the position of the air outlet. The air outlet is set close to the leeward side of the inclined plate. When the inclined plate rotates, the air flow will gather on the leeward side of the fin. At this time, the air outlet is opened on the leeward side of the fin to ensure that the air flow can be ejected smoothly from the air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the position of the air duct of the utility model in the air outlet state;

[0020] Figure 3 It is a cross-sectional schematic diagram of the air duct of the utility model in a state where no air is discharged;

[0021] Figure 4 It is a structural schematic diagram of the nozzle of the utility model.

[0022] Description of the numbers in the figure:

[0023] Main pipe 1; air duct 2; fixed pipe 21; relay pipe 22; tension spring 23; end sleeve 1 24; end sleeve 25; nozzle 3; shell 31; clamp ring 32; fin 33; inclined plate 34; air outlet 35; air passage 36. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0026] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] Example:

[0028] This embodiment provides a static electricity removal device specifically for rapid static electricity removal of bag dust collectors. Figure 1 , including a main pipe 1, which is horizontally arranged and connected to an air supply pump for providing continuous airflow at the left end. An air duct 2 is installed through the bottom surface of the main pipe 1. A plurality of air ducts 2 are arranged equidistantly, corresponding to the positions of the filter bags below. The air duct 2 is vertically retractable. When the air duct 2 is discharging air, the air duct 2 will stretch and extend into the filter bag, and the filter bag and the cage frame do not need to move up and down. A nozzle 3 with an air outlet channel and horizontal rotation is installed at the bottom of the air duct 2. When the air duct 2 is inlet, the nozzle 3 can rotate and use the air outlet channel to blow air to the inner wall of the filter bag. Similarly, an electrode is installed in the main pipe 1 (the prior art in the cited document, not shown in the figure), which can ionize the air and remove static electricity from the surface of the filter bag.

[0029] In a further embodiment, referring to Figure 2 The air duct 2 includes a hollow fixed pipe 21, which is arranged vertically, and a relay pipe 22 is vertically slidably inserted in the middle of the fixed pipe 21. When not in use, a tension spring 23 is installed between the relay pipe 22 and the fixed pipe 21. The tension spring 23 is shortened to shrink the relay pipe 22 into the fixed pipe 21, reducing the overall length of the air duct 2 away from the top opening of the filter bag to avoid affecting the normal filtering of air by the bag dust collector.

[0030] In a further embodiment, the tension spring 23 uses a lightweight spring, which can reduce the overall mass of the relay tube 22, and when air enters the air duct 2, the internal air pressure can overcome the elastic force of the tension spring 23 to make the relay tube 22 extend downward.

[0031] In a further embodiment, referring to Figure 3 There are multiple relay tubes 22, which can divide the air duct 2 into multiple sections. When no air is coming out, they can be as far away from the top opening of the filter bag as possible. When air is coming out, they can be extended as much as possible and inserted into the bottom of the filter bag to fully remove static electricity from the entire filter bag. The inner diameter of the relay tube 22 gradually decreases, and all the relay tubes 22 are coaxially slidably sleeved. By coaxially sleeved multiple relay tubes 22 in sequence, the relay tube 22 can be smoothly extended by the wind pressure when air is taken in, and there is no need to set a telescopic drive structure, and the structure is simple.

[0032] In a further embodiment, referring to Figure 3 , the top of the relay tube 22 and the fixed tube 21 are fixedly installed with an end sleeve 1 24, and the inner wall of the bottom end of the relay tube 22 and the fixed tube 21 is fixedly installed with an end sleeve 25, the end sleeve 1 24 and the end sleeve 25 are one up and one down, and sealing rings and other sealing members are arranged on the outer edge, and air leakage is avoided by sliding contact with the outer wall of the relay tube 22, and the end sleeve 1 24 and the end sleeve 25 can be used to vertically guide the relay tube 22 to ensure the vertical extension and contraction of the relay tube 22, and a plurality of tension springs 23 are arranged, and the tension springs 23 are fixed between adjacent end sleeves 1 24, which can ensure that each relay tube 22 is extended and contracted separately, avoiding the use of one tension spring 23 for synchronous driving, and realizing the smooth extension and contraction of the relay tube 22, and preventing the extension and contraction from being poor due to the excessive length of the tension spring 23.

[0033] In a further embodiment, referring to Figure 4 The nozzle 3 is located inside the bottom end of the innermost relay tube 22, so that the air flow can be ejected from the bottom end of the relay tube 22. The nozzle 3 includes a shell 31, an air outlet 35 opened at the lower part of the shell 31, and the shell 31 is a hollow structure with an opening at the top. The air outlet 35 on the side wall of the shell 31 can be used for air outlet, and a clamping ring 32 is installed in the middle part of the outer side of the shell 31. The outer wall of the clamping ring 32 is fixedly connected to the relay tube 22, and the clamping ring 32 is sleeved in the annular groove in the middle part of the shell 31 to ensure that the shell 31 will not fall off.

[0034] In a further embodiment, referring to Figure 4 A circular array of fins 33 is installed on the inner side of the shell 31. The fins 33 are arranged vertically. The fins 33 divide the middle space of the shell 31 into a plurality of uniform air passages 36 to ensure that the internal airflow is evenly dispersed. Combined with multiple rows of vertically arranged air outlet holes 35, multi-directional air outlet can be achieved. Even if the shell 31 cannot rotate, air can be discharged smoothly.

[0035] In further embodiments, please refer to Figure 4 A slanted plate 34 with a consistent inclination angle is installed on the top of the fin 33. The slanted plate 34 can face the wind sideways and drive the shell 31 to rotate through the airflow. No driving device is required to further simplify the structure. The air outlet 35 is arranged near the leeward side of the slanted plate 34. When the slanted plate 34 rotates, the airflow will gather on the leeward side of the fin 33. At this time, the air outlet 35 is opened on the leeward side of the fin 33 to ensure smooth ejection of the airflow.

[0036] The air supply pump involved in the above embodiment adopts an existing product purchased by the factory, and its supporting control system, solenoid valve, control switch and circuit can also be provided by the manufacturer. In addition, the power supply module, circuit, electronic components and control module involved in the utility model are all existing technologies, which can be fully implemented by technical personnel in this field. Needless to say, the content protected by the utility model does not involve improvements to the internal structure and methods.

[0037] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A fast-cleaning bag filter, comprising a main pipe (1), characterized in that: An air duct (2) is installed through the bottom surface of the main pipe (1); the air duct (2) is vertically telescopically arranged; and a nozzle (3) having an air outlet channel and capable of horizontal rotation is installed at the bottom end of the air duct (2).

2. A fast-cleaning bag dust collector according to claim 1, characterized in that: The air duct (2) comprises a hollow fixed pipe (21) and a relay pipe (22) vertically slidably inserted in the middle of the fixed pipe (21), and a tension spring (23) is installed between the relay pipe (22) and the fixed pipe (21).

3. A fast-cleaning bag dust collector according to claim 2, characterized in that: A plurality of relay tubes (22) are provided, the inner diameter of the relay tubes (22) gradually decreases, and all the relay tubes (22) are coaxially slidably sleeved.

4. A fast-cleaning bag dust collector according to claim 3, characterized in that: The tops of the relay tube (22) and the fixed tube (21) are both fixedly mounted with an end sleeve 1 (24); the inner walls of the bottom ends of the relay tube (22) and the fixed tube (21) are both fixedly mounted with an end sleeve 2 (25); a plurality of tension springs (23) are provided, and the tension springs (23) are fixed between adjacent end sleeves 1 (24).

5. A fast-cleaning bag dust collector according to claim 4, characterized in that: The nozzle (3) is located inside the bottom end of the innermost relay pipe (22), and the nozzle (3) comprises a shell (31), an air outlet (35) provided at the lower part of the shell (31), and a clamping ring (32) installed at the middle part of the outer side of the shell (31), and the clamping ring (32) is fixedly connected to the relay pipe (22).

6. A fast-cleaning bag dust collector according to claim 5, characterized in that: An annular array of fins (33) is installed inside the shell (31), and the fins (33) divide the central space of the shell (31) into a plurality of uniform air passages (36).

7. A fast-cleaning bag dust collector according to claim 6, characterized in that: An inclined plate (34) with a consistent inclination angle is installed on the top of the fin (33), and the air outlet (35) is arranged adjacent to the leeward side of the inclined plate (34).

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