Dust falling device for hot air pipeline

Abstract

The utility model relates to the field of dust removal, in particular to a dust falling device for a hot air pipeline, and aims to solve the technical problems that an electrostatic dust collector is generally used for dust removal in the prior art, but an electrode plate of the dust collector is easily influenced by factors such as high temperature, high humidity and corrosive gas. The two sides of each dust removal pipe are connected with two electrode plates which are vertically arranged in parallel, the two electrode plates are connected with a power source, the electrode plates are connected to the inner wall of the dust removal box through an insulating support, the air inlet pipe and the exhaust pipe are connected to the side wall of the dust removal box, and a cleaning mechanism is arranged in each dust removal pipe and can convey dust on the barrel wall of the dust removal pipe into the dust collection barrel. The two parallel electrode plates are located on the two sides of the dust removal pipe and do not make direct contact with dust, the service life of the electrode plates is greatly prolonged, the cleaning mechanism drives the dust adsorbed to the barrel wall to enter the dust collection barrel, and due to the fact that the dust collection barrel is closed, hot air does not wrap the dust in the dust collection barrel to circulate during circulation.

Description

Technical Field

[0001] The utility model relates to a dust removal field, in particular to a dust reduction device for a hot air duct. Background Art

[0002] In the process of cement production, the hot air duct plays an important role in transporting high-temperature hot air to meet the needs of different technological processes. However, traditional cement hot air ducts often face serious dust problems during operation. The dust affects the operation of equipment: the accumulation of dust in the hot air duct will reduce the ventilation efficiency of the duct, increase the system resistance, lead to an increase in the load of the fan and an increase in energy consumption. At the same time, the dust may wear the inner wall of the duct, fan blades and other equipment components, shortening the service life of the equipment;

[0003] The prior art usually uses an electrostatic precipitator for dust removal, but the electrode plates of the precipitator are easily affected by factors such as high temperature, high humidity, and corrosive gases. The utility model solves the above problems. Summary of the Utility Model

[0004] The utility model aims to solve the technical problem that the prior art usually uses an electrostatic precipitator for dust removal, but the electrode plates of the precipitator are easily affected by factors such as high temperature, high humidity, and corrosive gases, and further provides a dust reduction device for a hot air duct.

[0005] The dust reduction device for a hot air duct includes: an air inlet pipe, which is connected to the upper part of the first dust removal pipe. The dust removal pipes are arranged vertically, and adjacent dust removal pipes are connected by a horizontal pipe. The adjacent horizontal pipes are vertically staggered and connected between the two dust removal pipes. A discharge pipe is connected to the dust removal pipe at the end along the air flow direction. A dust collection cylinder is connected to the lower part of the dust removal pipe. Two vertically parallel electrode plates are connected to both sides of each dust removal pipe. The two electrode plates are connected to a power supply, and the electrode plates are connected to the inner wall of the dust removal box through an insulating bracket. The air inlet pipe and the discharge pipe are both connected to the side wall of the dust removal box. A cleaning mechanism is arranged in the dust removal pipe, and the cleaning mechanism can transport the dust on the wall of the dust removal pipe to the dust collection cylinder.

[0006] Further, the cleaning mechanism includes a cleaning shaft and a spiral blade. The cleaning shaft is rotatably connected to the top walls of the dust removal box and the dust removal pipe. The cleaning shaft is concentric with the dust removal pipe. The spiral blade is connected to the cleaning shaft in the dust removal pipe, and the spiral blade is in contact with the inner wall of the dust removal pipe.

[0007] Further, the dust collection cylinder is a cylindrical container with narrow ends and a wide middle, and a dust discharge valve is arranged at the bottom of the dust collection cylinder.

[0008] Advantages of the Utility Model

[0009] Two parallel electrode plates are located on both sides of the dust removal pipe and do not come into direct contact with the dust, greatly extending the service life of the electrode plates. The cleaning mechanism drives the dust adsorbed on the cylinder wall into the dust collection cylinder. Since the dust collection cylinder is airtight, the hot air circulation will not carry the dust in the dust collection cylinder into the circulation.

[0010] The spiral blade can stably scrape off the dust in the dust removal pipe without leaving dead corners and transport it into the dust collection cylinder. Brief Description of the Drawings

[0011] Figure 1 is a schematic structural diagram of the present utility model;

[0012] Figure 2 is a schematic cross-sectional structural diagram of the present utility model;

[0013] Figure 3 is a schematic structural diagram of the present utility model.

[0014] In the figure: air inlet pipe 1; dust removal pipe 2; horizontal pipe 3; exhaust pipe 4; dust collection cylinder 5; electrode plate 6; dust removal box 7; cleaning shaft 8; spiral blade 9. Detailed Description of the Preferred Embodiment

[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0016] The term "rotatable connection" in this device means that the bearing is baked and installed on the shaft, and a spring retaining ring groove is provided on the shaft or the shaft hole. The axial fixation of the bearing is achieved by clamping the elastic retaining ring in the retaining ring groove to realize rotation; the term "hinged connection" means a connection method that can move on connecting parts such as hinges, pin shafts, and short shafts.

[0017] The present utility model will be described in detail below with reference to the accompanying drawings. Embodiment

[0018] Next, in combination with the attached Figures 1-3The dust removal device of this embodiment is used for a hot air duct, including: an air inlet pipe 1, the air inlet pipe 1 is connected to the upper part of the first dust removal pipe 2, the dust removal pipe 2 is vertically arranged, adjacent dust removal pipes 2 are connected by a horizontal pipe 3, adjacent horizontal pipes 3 are vertically staggered and connected between the two dust removal pipes 2, a discharge air pipe 4 is connected to the dust removal pipe 2 at the end along the air flow direction, a dust collection cylinder 5 is connected to the lower part of the dust removal pipe 2, two vertically parallel electrode plates 6 are connected to both sides of each dust removal pipe 2, the two electrode plates 6 are connected to a power supply, and the electrode plates 6 are connected to the inner wall of the dust removal box 7 through an insulating bracket. The air inlet pipe 1 and the discharge air pipe 4 are both connected to the side wall of the dust removal box 7. A cleaning mechanism is arranged in the dust removal pipe 2, and the cleaning mechanism can transport the dust on the wall of the dust removal pipe 2 into the dust collection cylinder 5;

[0019] Inject the dusty hot air into the first dust removal pipe 2 through the air inlet pipe 1, turn on the power supply of each group of electrode plates 6. The high-voltage electric field between the two electrode plates 6 makes the dust in the dusty gas charged. Under the action of the electric field force, the dust is guided to adhere to one side of the inner wall of the dust removal pipe 2. The fact that the dust does not directly contact the electrode plates 6 greatly extends the service life of the electrode plates. The adjacent horizontal pipes 3 are vertically staggered and connected between the two dust removal pipes 2. The hot air rotates in different dust removal pipes 2 through the horizontal pipes 3, greatly extending the hot air travel distance, so that the inner walls of the dust removal pipes 2 are all used to adsorb dust. After the adsorption is completed, the cleaning mechanism transports the dust to the lower dust collection cylinder 5. Since the dust collection cylinder 5 is airtight, the hot air circulation will not carry the dust in the dust collection cylinder 5 into the circulation.

[0020] The cleaning mechanism includes a cleaning shaft 8 and a spiral blade 9. The cleaning shaft 8 is rotatably connected to the top walls of the dust removal box 7 and the dust removal pipe 2. The cleaning shaft 8 is concentric with the dust removal pipe 2. The spiral blade 9 is connected to the cleaning shaft 8 in the dust removal pipe 2, and the spiral blade 9 is in contact with the inner wall of the dust removal pipe 2;

[0021] When cleaning, turn on the cleaning shaft 8. The cleaning shaft 8 drives the spiral blade 9 to rotate. The spiral blade 9 is in contact with the inner wall of the cleaning shaft 8. The spiral blade 9 scrapes the dust on the inner wall of the dust removal pipe 2 and conveys it to the dust collection cylinder 5. The dust will only adhere to the inner wall of the dust collection cylinder 5 in the electric field, and no dust will accumulate on the spiral blade 9.

[0022] The dust collection cylinder 5 is a cylindrical container with narrow ends and a wide middle. A dust discharge valve is provided at the bottom of the dust collection cylinder 5;

[0023] It is convenient for feeding and discharging.

[0024] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0025] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. Dust removal device for hot air duct, characterized in that: Including: An air inlet pipe (1), the air inlet pipe (1) is connected to the upper part of the first dust removal pipe (2), the dust removal pipe (2) is vertically arranged, adjacent dust removal pipes (2) are connected by a horizontal pipe (3), adjacent horizontal pipes (3) are vertically staggered and connected between the two dust removal pipes (2), a discharge air pipe (4) is connected to the dust removal pipe (2) at the end along the air flow direction, a dust collection cylinder (5) is connected to the lower part of the dust removal pipe (2), two vertically parallel electrode plates (6) are connected to both sides of each dust removal pipe (2), the two electrode plates (6) are connected to a power supply, the electrode plates (6) are connected to the inner wall of the dust removal box (7) through an insulating bracket, the air inlet pipe (1) and the discharge air pipe (4) are both connected to the side wall of the dust removal box (7), and a cleaning mechanism is arranged in the dust removal pipe (2), and the cleaning mechanism can transport the dust on the inner wall of the dust removal pipe (2) into the dust collection cylinder (5).

2. The dust reduction device for a hot air duct according to claim 1, characterized in that: The cleaning mechanism includes a cleaning shaft (8) and a spiral blade (9), the cleaning shaft (8) is rotatably connected to the top walls of the dust removal box (7) and the dust removal pipe (2), the cleaning shaft (8) is concentric with the dust removal pipe (2), the spiral blade (9) is connected to the cleaning shaft (8) in the dust removal pipe (2), and the spiral blade (9) is in contact with the inner wall of the dust removal pipe (2).

3. The dust reduction device for a hot air duct according to claim 1, characterized in that: The dust collection cylinder (5) is a cylindrical container with narrow ends and a wide middle, and a dust discharge valve is arranged at the bottom of the dust collection cylinder (5).

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