Dust collecting device for roasting of rotary kiln

Abstract

The utility model relates to the field of rotary kiln roasting, discloses a dust collection device for rotary kiln roasting, and solves the problem of poor cleaning effect of the existing dust collection device for rotary kiln roasting. Through the driving rod, the sun gear, the planetary gears, the gear ring, the round shell and the cleaning brush, the motor drives the driving rod at the output end to rotate, the driving rod is movably connected with the shell, the driving rod drives the sun gear to be meshed with the planetary gears at the two ends to rotate, and the two sets of planetary gears are meshed with the gear ring in the round shell. The two groups of planetary gears respectively drive the two groups of cleaning brushes to rotate and revolve around the sun gear, so that the two groups of cleaning brushes are used for cleaning and dedusting the interior of the shell and the surface of the cloth bag and preventing blockage, and the filtering effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary kiln roasting, in particular to a dust collection device for rotary kiln roasting. Background Technique

[0002] Rotary kiln roasting is a common industrial process, mainly used for the production of materials such as lime, cement, and ceramics. During the rotary kiln roasting process, fuel and raw materials undergo chemical reactions at high temperatures, generating a large amount of tail gas and dust. If these tail gases and dust are discharged into the atmosphere without treatment, they may cause serious pollution and harm to the environment and human health.

[0003] At present, during the operation of the dust collection device for rotary kiln roasting, since dust will gradually accumulate on the cloth bag, the cloth bag needs to be cleaned after long-term use to ensure the dust removal effect. As the service life prolongs, it will be worn, thus affecting the dust removal effect and increasing the maintenance cost and difficulty. Content of the Utility Model

[0004] The purpose of the utility model is to provide a dust collection device for rotary kiln roasting. By using this device for work, the problem of poor cleaning effect of the existing dust collection device for rotary kiln roasting is solved.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A dust collection device for rotary kiln roasting, including a housing, an air inlet opened at one end of the housing, an air outlet opened at the other end of the housing, an air outlet opened at the bottom end of the housing, a dust discharge valve arranged at the outer end of the air outlet, and a cloth bag arranged inside the housing. A cleaning structure is arranged inside the housing;

[0006] The cleaning structure includes a motor arranged inside the housing, a driving rod arranged at the output end of the motor, a sun gear arranged on the surface of the driving rod, a planetary gear meshed at one end of the sun gear, a ring gear meshed at one end of the planetary gear, and a cleaning brush arranged on one side of the planetary gear.

[0007] Further, a circular housing is arranged inside the housing, and the ring gear is connected to the circular housing.

[0008] Further, two groups of planetary gears are symmetrically distributed about the center axis of the sun gear. The two groups of planetary gears drive the cleaning brush to rotate self - rotatably, and the cleaning brush is in contact with the surface of the housing and the cloth bag.

[0009] Further, a lead screw is arranged at the bottom end of the driving rod, and a moving column is threadedly connected to the surface of the lead screw.

[0010] Further, an air blowing structure is arranged at one end of the housing. The air blowing structure includes an exhaust fan arranged at one end of the housing, and the exhaust fan is connected to the outer surface of the housing.

[0011] Furthermore, an output pipe is connected to the output end of the exhaust fan, and the output pipe is made of iron wire pipe material.

[0012] Furthermore, a valve body is arranged in the middle of the output pipe, and the valve body is connected to the casing.

[0013] Furthermore, the output pipe penetrates through a pipe groove formed on the surface of the casing. One end of the output pipe is connected to a communicating pipe, and a wind head is arranged on the surface of the communicating pipe, and the wind head is inclined.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] A dust collection device for rotary kiln roasting proposed by the present utility model has a poor cleaning effect compared with the existing dust collection devices for rotary kiln roasting. However, through the driving rod, sun gear, planetary gear, ring gear, circular shell and cleaning brush of the present utility model, the driving rod at the output end is driven to rotate by the motor. The driving rod is movably connected to the casing. The driving rod drives the sun gear to mesh and rotate with the planetary gears at both ends. The two planetary gears mesh with the ring gear inside the circular shell. The two planetary gears drive the two cleaning brushes to rotate around the sun gear respectively while rotating around their own axes, so that the two cleaning brushes clean and remove dust from the inside of the casing and the surface of the cloth bag, and prevent it from being blocked, thereby improving the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall front sectional structure schematic diagram of the present utility model;

[0017] Figure 2 is the top view structure schematic diagram of the cleaning structure of the present utility model;

[0018] Figure 3 is the three-dimensional structure schematic diagram of the air blowing structure, screw rod and moving column of the present utility model;

[0019] Figure 4 is the three-dimensional structure schematic diagram of the air blowing structure of the present utility model.

[0020] In the figure: 1, casing; 2, air inlet; 3, air outlet; 4, ash outlet; 5, ash discharge valve; 6, cloth bag; 7, cleaning structure; 71, motor; 72, driving rod; 73, sun gear; 74, planetary gear; 75, ring gear; 76, circular shell; 77, cleaning brush; 8, air blowing structure; 81, exhaust fan; 82, output pipe; 83, valve body; 84, communicating pipe; 85, wind head; 9, screw rod; 10, moving column. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] To further understand the content of the present invention, the present invention will be described in detail in conjunction with the accompanying drawings.

[0023] Combined with Figures 1 - 3 , a dust collection device for rotary kiln roasting includes a casing 1, an air inlet 2 opened at one end of the casing 1, an air outlet 3 opened at the other end of the casing 1, an air outlet 3 opened at the bottom end of the casing 1, a dust discharge valve 5 arranged at the outer end of the air outlet 3, and a cloth bag 6 arranged inside the casing 1. A cleaning structure 7 is arranged inside the casing 1.

[0024] The present invention will be further described below in conjunction with embodiments.

[0025] Embodiment 1:

[0026] Please refer to Figures 1 - 3 , the cleaning structure 7 includes a motor 71 arranged inside the casing 1, a driving rod 72 arranged at the output end of the motor 71, a sun gear 73 arranged on the surface of the driving rod 72, a planetary gear 74 meshing with one end of the sun gear 73, a ring gear 75 meshing with one end of the planetary gear 74, and a cleaning brush 77 arranged on one side of the planetary gear 74. A circular shell 76 is arranged inside the casing 1, and the ring gear 75 is connected to the circular shell 76. There are two groups of planetary gears 74 symmetrically distributed about the center axis of the sun gear 73. The two groups of planetary gears 74 drive the cleaning brush 77 to rotate. The cleaning brush 77 is in contact with the surface of the casing 1 and the cloth bag 6. A lead screw 9 is arranged at the bottom end of the driving rod 72, and a moving column 10 is threadedly connected to the surface of the lead screw 9 to prevent it from being blocked, thereby improving the filtering effect.

[0027] Specifically, the flue gas inside the rotary kiln is input into the interior of the casing 1 through the air inlet 2, and then filtered through multiple groups of filter bags 6 arranged. However, after long-term use, the surface of the filter bags 6 needs to be cleaned. The motor rotates forward 8 circles and reverses 8 circles <71> by pressing an external button. The rotation is controlled by a controller. The motor <71> drives the driving rod <72> at the output end to rotate. The driving rod <72> is movably connected to the casing 1. The driving rod <72> drives the sun gear <73> to mesh and rotate with the planet gears <74> at both ends. The two planet gears <74> mesh with the internal toothed ring <75> of the circular casing <76>. The two planet gears <74> drive the two cleaning brushes <77> to rotate around the sun gear <73> while rotating on their own axes, so that the two cleaning brushes <77> clean the interior of the casing 1 and the surface of the filter bags 6 to remove dust and prevent blockage, thereby improving the filtering effect.

[0028] Embodiment 2:

[0029] Please refer to Figure 4 , an air blowing structure <8> is provided at one end of the casing <1>. The air blowing structure <8> includes an exhaust fan <81> provided at one end of the casing <1>. The exhaust fan <81> is connected to the outer surface of the casing <1>. The output end of the exhaust fan <81> is connected to an output pipe <82>. The output pipe <82> is made of wire tube material. A valve body <83> is provided in the middle of the output pipe <82>. The valve body <83> is connected to the casing <1>. The output pipe <82> passes through a pipe groove opened on the surface of the casing <1>. One end of the output pipe <82> is connected to a communicating pipe <84>. An air head <85> is provided on the surface of the communicating pipe <84>. The air head <85> is inclined, which can quickly blow away the dust adhering to the surface of the filter bag <6> and improve the cleaning effect.

[0030] Specifically, the driving rod <72> drives the screw rod <9> at the bottom end to rotate. The screw rod <9> is threadedly connected to the moving column <10>. Thus, the moving column <10> drives the multiple groups of inclined air heads <85> on the surface of the two communicating pipes <84> at both ends to move up and down reciprocally. And the exhaust fan <81> and the valve body <83> are started simultaneously by pressing an external button. The exhaust fan <81> conveys air to the output pipe <82>. The output pipe <82> outputs air through the communicating pipe <84> to the multiple groups of air heads <85>. The multiple groups of air heads <85> blow the filter bag <6> to remove dust. The air blowing can generate a strong air flow, which can quickly blow away the dust adhering to the surface of the filter bag <6> and improve the cleaning effect.

[0031] It should be noted that in this article, 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 term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including 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.

[0032] Although 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. A dust collecting device for rotary kiln roasting, comprising a housing (1), an air inlet (2) provided at one end of the housing (1), an air outlet (3) provided at the other end of the housing (1), an air outlet (3) provided at the bottom end of the housing (1), an ash discharge valve (5) provided at the outer end of the air outlet (3), and a cloth bag (6) provided inside the housing (1), characterized in that: A cleaning structure (7) is provided inside the housing (1); The cleaning structure (7) comprises a motor (71) arranged inside the housing (1), a driving rod (72) arranged at the output end of the motor (71), a sun gear (73) arranged on the surface of the driving rod (72), a planetary gear (74) meshed with one end of the sun gear (73), a ring gear (75) meshed with one end of the planetary gear (74), and a cleaning brush (77) arranged on one side of the planetary gear (74).

2. The dust collecting device for rotary kiln roasting according to claim 1, characterized in that: A circular shell (76) is arranged inside the housing (1), and the gear ring (75) is connected to the circular shell (76).

3. The dust collecting device for rotary kiln roasting according to claim 2, characterized in that: The planetary gears (74) are arranged in two groups symmetrically about the central axis of the sun gear (73). The two groups of planetary gears (74) drive the cleaning brush (77) to rotate, and the cleaning brush (77) is in contact with the housing (1) and the surface of the cloth bag (6).

4. The dust collecting device for rotary kiln roasting according to claim 1, characterized in that: A screw rod (9) is provided at the bottom end of the driving rod (72), and a moving column (10) is threadedly connected to the surface of the screw rod (9).

5. The dust collecting device for rotary kiln roasting according to claim 1, characterized in that: An air blowing structure (8) is provided at one end of the housing (1), and the air blowing structure (8) comprises an exhaust fan (81) provided at one end of the housing (1), and the exhaust fan (81) is connected to the outer surface of the housing (1).

6. The dust collecting device for rotary kiln roasting according to claim 5, characterized in that: The output end of the exhaust fan (81) is connected to an output pipe (82), and the output pipe (82) is made of an iron wire pipe.

7. The dust collecting device for rotary kiln roasting according to claim 6, characterized in that: A valve body (83) is provided in the middle of the output pipe (82), and the valve body (83) is connected to the housing (1).

8. The dust collecting device for rotary kiln roasting according to claim 7, characterized in that: The output pipe (82) passes through a pipe groove provided on the surface of the housing (1); one end of the output pipe (82) is connected to a connecting pipe (84); a wind head (85) is provided on the surface of the connecting pipe (84); and the wind head (85) is inclined.

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