Rotary kiln high-pressure spray gun

Abstract

The utility model discloses a rotary kiln high-pressure spray gun which comprises a spray gun body, the spray gun body is used for guiding high-pressure air to be discharged from an outlet of the spray gun body, a spiral guide groove is formed in the inner wall of the spray gun body, and the guide groove can guide the high-pressure air in a gun barrel to be sprayed out in a spiral mode. The unfolding assembly is arranged at an outlet of the spray gun body, and the unfolding assembly can be unfolded in an umbrella shape when moving; and the driving assembly is arranged on the spray gun body in an up-down moving mode, and when the driving assembly moves towards the side close to the unfolding assembly, the unfolding assembly can be unfolded in an umbrella shape. According to the utility model, high-pressure air can be accurately blown out according to a required range, so that the air outlet range of the high-pressure air can be adjusted according to the condition in the kiln.

Description

Technical Field

[0001] The utility model relates to the technical field of smelting equipment, in particular to a high-pressure spray gun for a rotary kiln. Background Art

[0002] Rotary kilns offer advantages such as simple structure, easy operation, low investment, strong material adaptability, and high market share. They are currently the primary equipment for treating smelting waste. When treating smelting waste in a rotary kiln, a high-pressure lance is typically installed at the kiln head to inject high-pressure air in order to enhance combustion and maintain a temperature that meets process requirements.

[0003] However, due to the simple structure of the traditional spray gun, the high-pressure air flow direction entering the kiln is single, and the spraying range cannot be adjusted according to the coal coke situation in the kiln. This will easily lead to incomplete combustion of some coal coke, and the kiln slag contains some unburned residual coke, resulting in high coal coke consumption. The incomplete combustion of coal coke makes the heat provided by the fuel combustion in the kiln insufficient, thereby affecting the combustion effect. Therefore, how to design a high-pressure spray gun that can adjust the air outlet range according to the internal situation of the rotary kiln has become a problem that people in this field need to solve. Utility Model Content

[0004] The purpose of the present utility model is to address the above-mentioned shortcomings and provide a rotary kiln high-pressure spray gun, which can adjust the air outlet range of the high-pressure air according to the conditions in the kiln.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a rotary kiln high-pressure spray gun, comprising:

[0006] The spray gun body is used to guide the high-pressure air to be discharged from its outlet. The inner wall of the spray gun body is provided with a spiral guide groove, which can guide the high-pressure air in the gun barrel to be ejected in a spiral shape;

[0007] An expansion assembly is provided at the outlet of the spray gun body, and the expansion assembly can be expanded in an umbrella shape when in motion;

[0008] The driving assembly is movably arranged on the spray gun body, and when the driving assembly moves toward the side close to the unfolding assembly, the unfolding assembly can be unfolded in an umbrella shape.

[0009] Furthermore, the spray gun body includes a barrel, the guide groove is provided on the inner wall of the barrel, an external thread is provided on the outer wall of the barrel, the drive assembly is threadedly engaged with the corresponding external thread of the barrel, and rotating the drive assembly can cause it to move toward or away from the side of the deployment assembly at the corresponding external thread of the barrel.

[0010] Furthermore, the deployment assembly includes a plurality of rotating racks hingedly arranged at the exit of the gun barrel, each of the rotating racks being equidistantly distributed, and a connecting rod hingedly arranged at one end of the rotating rack away from the gun barrel. The driving assembly is hingedly connected to the end of each connecting rod away from the rotating rack. When the driving assembly moves toward and away from the deployment assembly, it drives the connecting rod to drive each of the rotating racks to rotate around the connection with the gun barrel as the center, thereby folding and unfolding in an umbrella shape.

[0011] It also includes soft surrounding materials, which surround and connect each of the rotating frames.

[0012] Furthermore, a sealing ring is provided at the outlet of the gun barrel, and a side of the surrounding material close to the outlet of the gun barrel is connected to the sealing ring and sealed.

[0013] Furthermore, the drive assembly includes an outer sleeve mounted on the spray gun body, an inner sleeve rotatably provided on the inner side of the outer sleeve, the outer sleeve is hinged to one end of each connecting rod away from the rotating frame, and the inner sleeve is threadedly matched with the corresponding external thread of the gun barrel.

[0014] The beneficial effects of the present invention are as follows:

[0015] In the present utility model, according to the size of the required jet range, the staff drives the driving component to move to the side close to the outlet of the spray gun body. During this process, the driving component will drive the expansion component to gradually expand in an umbrella shape. The closer the driving component is to the outlet of the spray gun body, the greater the expansion range of the expansion component. The guide groove can guide the high-pressure air in the gun barrel to be ejected in a spiral shape. In combination with the expansion components that expand into different ranges, the high-pressure air can be blown out accurately according to the required range, thereby realizing the adjustment of the high-pressure air outlet range according to the situation in the kiln. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional view of the utility model;

[0017] Figure 2 This is a structural sectional view of the utility model;

[0018] Figure 3 It is a sectional side view of the utility model;

[0019] Figure 4 It is a partial view of the drive assembly in the present utility model.

[0020] In the picture:

[0021] 1. Spray gun body; 11. Gun barrel; 12. Guide groove; 13. External thread; 2. Rotating frame; 3. Connecting rod; 4. Drive assembly; 41. Outer sleeve; 42. Inner sleeve; 43. Handle; 5. Surrounding material; 6. Sealing ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-4 The utility model discloses a rotary kiln high-pressure spray gun, including a spray gun body 1. The spray gun body 1 is used to guide high-pressure air to be discharged from its outlet. When in use, the spray gun body 1 needs to be connected to a high-pressure air source, and then the high-pressure air is sprayed out. The structure and working principle of the spray gun body 1 are common knowledge in the field, so the specific structure and working principle will not be described in detail in this article.

[0024] In one embodiment, a spiral guide groove 12 is provided on the inner wall of the spray gun body 1, and an expansion component is provided at the outlet of the spray gun body 1. The expansion component can be expanded in an umbrella shape when moving. A driving component 4 is provided on the spray gun body 1 and can be moved up and down. When the driving component 4 moves toward the side close to the expansion component, the expansion component can be expanded in an umbrella shape.

[0025] In specific implementation, according to the required jet range, the staff drives the driving component 4 to move to the side close to the outlet of the spray gun body 1. During this process, the driving component 4 will drive the expansion component to gradually expand in an umbrella shape. The closer the driving component 4 is to the outlet of the spray gun body 1, the greater the expansion range of the expansion component. The guide groove 12 can guide the high-pressure air in the barrel 11 to be ejected in a spiral shape. Combined with the expansion components that expand into different ranges, the high-pressure air can be blown out accurately according to the required range, so that the air outlet range of the high-pressure air can be adjusted according to the situation in the kiln.

[0026] In one embodiment, the spray gun body 1 includes a barrel 11 , a guide groove 12 is formed on the inner wall of the barrel 11 , an outer wall of the barrel 11 is provided with an external thread 13 , and the drive assembly 4 is threadedly engaged with the corresponding external thread 13 of the barrel 11 .

[0027] With this design, a worker can manually rotate the drive assembly 4 to move it toward or away from the side of the deployment assembly at the corresponding external thread 13 of the gun barrel 11 .

[0028] In one embodiment, the deployment assembly includes a plurality of rotating frames 2 hingedly arranged at the outlet of the gun barrel 11, and the rotating frames 2 are equidistantly distributed. A connecting rod 3 is hingedly provided at one end of the rotating frame 2 away from the gun barrel 11, and a driving assembly 4 is hinged to one end of each connecting rod 3 away from the rotating frame 2. When the driving assembly 4 moves toward and away from the deployment assembly, it can drive the connecting rod 3 to drive each rotating frame 2 to rotate around the connection with the gun barrel 11 as the center, and to fold and unfold in an umbrella shape; it also includes a soft surrounding material 5, which surrounds and connects each rotating frame 2.

[0029] In a specific implementation, when the driving assembly 4 moves up and down, it cooperates with the connecting rod 3 to drive each rotating frame 2 to rotate around the connection with the gun barrel 11. When the driving assembly 4 moves toward the side close to the outlet of the spray gun body 1, each rotating frame 2 rotates toward the side away from the center of the spray gun body 1; when the driving assembly 4 moves toward the side away from the outlet of the spray gun body 1, each rotating frame 2 rotates toward the side close to the center of the spray gun body 1, and the surrounding material 5 cooperates with the expansion or contraction of the rotating frame 2 and makes corresponding adjustments in an umbrella shape.

[0030] In one embodiment, a sealing ring 6 is installed at the outlet of the gun barrel 11. The sealing ring 6 can be a rubber ring. The side of the surrounding material 5 close to the outlet of the gun barrel 11 is connected to the sealing ring 6 and sealed.

[0031] This design ensures that the surrounding material 5 has good sealing performance with the spray gun body 1 whether it is folded or unfolded under the drive of the rotating frame 2, and prevents air from leaking between the surrounding material 5 and the spray gun body 1.

[0032] In one embodiment, the drive assembly 4 includes an outer sleeve 41 that is sleeved on the spray gun body 1, and an inner sleeve 42 is rotatably installed on the inner side of the outer sleeve 41. The outer sleeve 41 is hinged to the end of each connecting rod 3 away from the rotating frame 2, and the inner sleeve 42 is threadedly engaged with the corresponding external thread 13 of the gun barrel 11, and a handle 43 is installed on the inner sleeve 42.

[0033] In specific implementation, the staff manually rotates the inner sleeve 42 to make it rotate and move up and down at the corresponding external thread 13 of the barrel 11, while the outer sleeve 41 will not rotate because it is connected to each connecting rod 3. The outer sleeve 41 will move up and down synchronously with the inner sleeve 42, thereby driving the deployment assembly to expand or close, and the setting of the handle 43 can also facilitate the staff to rotate the inner sleeve 42 very labor-savingly.

[0034] It can be understood that when the inner sleeve 42 is not rotating, the outer sleeve 41 will not move either. Therefore, this structure has good structural stability. In actual circumstances, an adjustable clamp (such as a clamp) can also be installed on the outer sleeve 41. When the drive assembly 4 is adjusted to the corresponding position, the clamp is adjusted to be tightly clamped on the spray gun body 1 for fixation. The clamp is common knowledge in this field, so the specific structural composition and working principle will not be described in detail in this article.

[0035] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0036] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] In addition, "plurality" means two or more.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rotary kiln high pressure spray gun, characterized in that: include: A spray gun body (1), the spray gun body (1) is used to guide high-pressure air to be discharged from its outlet, and a spiral guide groove (12) is provided on the inner wall of the spray gun body (1), and the guide groove (12) can guide the high-pressure air in the gun barrel (11) to be ejected in a spiral shape; An expansion assembly is arranged at the outlet of the spray gun body (1), and the expansion assembly can be expanded in an umbrella shape when in motion; A driving assembly (4) is arranged on the spray gun body (1) so as to be movable up and down. When the driving assembly (4) moves toward a side close to the unfolding assembly, the unfolding assembly can be unfolded in an umbrella shape.

2. The rotary kiln high-pressure spray gun according to claim 1, characterized in that: The spray gun body (1) includes a gun barrel (11), the guide groove (12) is provided on the inner wall of the gun barrel (11), an external thread (13) is provided on the outer wall of the gun barrel (11), and the drive assembly (4) is threadedly matched with the corresponding external thread (13) of the gun barrel (11). Rotating the drive assembly (4) can cause it to move toward or away from the side of the deployment assembly at the corresponding external thread (13) of the gun barrel (11).

3. The rotary kiln high-pressure spray gun according to claim 2, characterized in that: The unfolding assembly comprises a plurality of rotating racks (2) hingedly arranged at the exit of the gun barrel (11), each of the rotating racks (2) being equidistantly distributed, and a connecting rod (3) being hingedly arranged at one end of the rotating rack (2) away from the gun barrel (11), and the driving assembly (4) being hingedly connected to one end of each of the connecting rods (3) away from the rotating rack (2). When the driving assembly (4) moves toward or away from the unfolding assembly, it drives the connecting rod (3) to drive each of the rotating racks (2) to rotate around the connection point with the gun barrel (11), so as to fold and unfold in an umbrella shape; It also includes soft surrounding materials (5), which surround and connect each of the rotating frames (2).

4. The rotary kiln high-pressure spray gun according to claim 3, characterized in that: A sealing ring (6) is provided at the outlet of the gun barrel (11), and a side of the surrounding material (5) close to the outlet of the gun barrel (11) is connected to the sealing ring (6) and is in sealing cooperation.

5. The rotary kiln high-pressure spray gun according to claim 3, characterized in that: The driving assembly (4) includes an outer sleeve (41) sleeved on the spray gun body (1), an inner sleeve (42) rotatably provided on the inner side of the outer sleeve (41), the outer sleeve (41) is hinged to one end of each connecting rod (3) away from the rotating frame (2), and the inner sleeve (42) is threadedly matched with the corresponding external thread (13) of the gun barrel (11).

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