Grinding tail air outlet device with optimized hot air pipe structure

Abstract

The utility model relates to the technical field of cement production, and discloses a mill tail air outlet device with an optimized hot air pipe structure. The mill tail air outlet device for optimizing the hot air pipe structure comprises a mill tail dust collecting assembly, an outer frame is installed at the upper end of the mill tail dust collecting assembly, first fan blades are installed in the outer frame, the side ends of the first fan blades are connected with a driving rod, and an automatic control structure is installed at the upper end of the driving rod. A conveying connecting assembly is installed at the upper end of the mill tail dust collecting assembly, a connecting pipe is installed at the upper end of the conveying connecting assembly, a mounting frame is installed at the lower end of the connecting pipe, the upper end of the conveying connecting assembly is connected with a V-selection air inlet assembly, and an air opening pipeline is installed at the upper end of the V-selection air inlet assembly. The problems that the moisture of mixed material powder is difficult to effectively reduce through common pipeline conveying and conventional air drying equipment, the subsequent moisture reduction effect is not obvious, the material accumulation problem cannot be fundamentally solved, and the equipment is frequently shut down are effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of cement production, in particular to a mill tail air outlet device with an optimized hot air pipe structure. Background Art

[0002] At present, the moisture content of mixed material powder in cement production is high, and can reach up to 15% or more, which seriously affects the stability of the production process. In the existing technology, it is difficult to effectively reduce the moisture content of mixed material powder through ordinary pipeline transportation and conventional air drying equipment.

[0003] An existing Chinese utility model patent with reference publication number CN208751303U discloses a coal mill hot air duct structure. The structure comprises a hot air duct connected to the mill, a hot air blower, and an air inlet duct. The hot air blower's air inlet and air outlet are connected to the air inlet duct and the hot air duct entering the mill, respectively. A bypass duct is provided at the connection between the hot air blower's air inlet and the air inlet duct, the other end of which is connected to the hot air duct entering the mill. This utility model prevents hot air blower failures from affecting normal production. When the hot air blower fails, the hot air blower can be stopped and the bypass duct can be used alone, without affecting normal production. This reduces the number of kiln shutdowns and improves the rotary kiln's operating rate. It also allows the hot air blower to be stopped regularly, using the hot air generated by the hot air blower's rotation to directly supply air through the bypass duct, thereby significantly reducing the fan's failure rate, ensuring the coal mill's operating rate, and reducing the hot air blower's power consumption, saving on hot air blower maintenance costs, and extending the equipment's service life.

[0004] Based on the search of the above patents and combined with the equipment in the prior art, it was found that the humidity of the mixed material powder in cement production is high and the moisture content can reach up to 15% or more, which seriously affects the stability of the production process. In the prior art, it is difficult to effectively reduce the moisture content of the mixed material powder through ordinary pipeline transportation and conventional air drying equipment, resulting in the subsequent moisture reduction effect being unobvious, resulting in the failure to fundamentally solve the material accumulation problem, frequent equipment shutdowns, affecting production efficiency, high energy consumption, and increased operating costs. The existence of these problems has affected the use of the device. Utility Model Content

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the existing technology, the utility model provides a mill tail air outlet device with an optimized hot air pipe structure, which can effectively prevent the difficulty in effectively reducing the moisture content of the mixed material powder through ordinary pipeline transportation and conventional air drying equipment, resulting in the subsequent moisture reduction effect being unobvious, leading to the failure to fundamentally solve the material accumulation problem and frequent equipment shutdowns.

[0007] Technical Solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mill tail air outlet device with optimized hot air pipe structure, including a mill tail dust collecting assembly, the upper end of the mill tail dust collecting assembly is equipped with a conveying connection assembly for connecting the pipes to facilitate the subsequent conveying of hot air, and the upper end of the conveying connection assembly is connected with a V-selected air inlet assembly for facilitating the use of hot air from the tail exhaust pipe of the clinker powder system to achieve effective drying of the mixed material.

[0009] An outer frame is installed at the upper end of the mill tail dust collecting assembly, a first fan blade is installed inside the outer frame, a side end of the first fan blade is connected to a driving rod, an automatic control structure is installed at the upper end of the driving rod, and the automatic control structure is installed at the upper end of the driving rod to facilitate the subsequent rotation of the driving rod;

[0010] A connecting pipe is installed at the upper end of the conveying connection assembly, and a mounting bracket is installed at the lower end of the connecting pipe. The mounting bracket is installed at the lower end of the connecting pipe to facilitate subsequent support of the connecting pipe.

[0011] An air outlet duct is installed at the upper end of the V-selected air inlet assembly, a second controller is installed at the upper end of the air outlet duct, a frame is installed inside the air outlet duct, a second fan blade is installed inside the frame, a rotating rod is installed at the upper end of the second fan blade, an adjustment structure is installed at the upper end of the rotating rod, an air outlet duct is installed at the upper end, and a first controller is installed at the upper end of the air outlet duct, and the second controller is installed at the upper end of the air outlet duct to facilitate subsequent control of the internal adjustment structure.

[0012] As a preferred technical solution of the present invention, an air outlet pipe is installed at the upper end of the grinding tail dust collecting assembly, and a first controller is installed at the upper end of the air outlet pipe, and the air outlet pipe transports and discharges the hot air inside the clinker powder system.

[0013] As an optimal technical solution of the present invention, a bracket is installed at the lower end of the conveying connection assembly, a fixing rod is installed inside the bracket, and the bracket is installed at the lower end of the mounting frame to facilitate subsequent installation of the mounting frame to the ground.

[0014] As a preferred technical solution of the present invention, a V-selector is installed at the upper end of the V-selector air inlet assembly, and the V-selector screens the mixed materials.

[0015] As the preferred technical solution of the present invention, the conveying connection assembly is installed on the upper right side of the air outlet pipe in the grinding tail dust collection assembly, and the V-selected air inlet assembly is installed on the upper right side of the connecting pipe in the conveying connection assembly.

[0016] As a preferred technical solution of the present invention, a connecting hole is installed at the upper end of the inner wall of the air outlet duct, the first fan blades are a four-piece structure, and the number of the driving rods corresponds to the number of the first fan blades.

[0017] As a preferred technical solution of the present invention, the connecting tube is a spiral tube, the length of the connecting tube is 630 mm, and the curvature of the upper end of the bracket fits the connecting tube.

[0018] As a preferred technical solution of the present invention, the second controller has the same structure as the first controller, the second fan blades have the same structure as the first fan blades, and the number of the rotating rods corresponds to the number of the second fan blades.

[0019] Compared with the prior art, the present invention provides a mill tail air outlet device with an optimized hot air pipe structure, which has the following beneficial effects:

[0020] The utility model sets up the overall device, and the overall device uses the hot air from the tail exhaust pipe of the clinker powder system to dry the mixed material powder. A 630mm spiral pipe (fixed by a bracket) is used to connect the dust collection outlet pipe at the end of the mill (the temperature is 60-75 degrees) to the V-selection air inlet of the mixed material. An electric louver regulating valve is designed on the top of the outlet pipe at the end of the mill to control the hot air flow rate. An electric louver regulating valve is installed on each of the two V-selection air inlet pipes to ensure uniform distribution of the hot air. All electric louver regulating valves are connected to the central control system to realize centralized control. This structure greatly reduces the moisture content of the mixed material powder, solves the problems of material accumulation and elevator tripping, improves production efficiency, reduces equipment downtime, reduces energy consumption, and reduces operating costs. It realizes precise control of hot air flow and temperature, ensures the stability of system operation, and effectively prevents the difficulty of effectively reducing the moisture content of the mixed material powder through ordinary pipeline transportation and conventional air drying equipment, resulting in insignificant subsequent moisture reduction effect, resulting in the failure to fundamentally solve the material accumulation problem, frequent equipment shutdowns, affecting production efficiency, high energy consumption, and increased operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the dust collection component at the end of the mill structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the structural conveying connection assembly of the utility model;

[0024] Figure 4 This is a schematic diagram of the air inlet assembly of the structure V of the present invention.

[0025] Among them: 1. Mill tail dust collection assembly; 101. Air outlet pipe; 102. First controller; 103. Outer frame; 104. First fan blade; 105. Driving rod; 106. Automatic control structure; 2. Conveying connection assembly; 201. Connecting pipe; 202. Mounting frame; 203. Bracket; 204. Fixing rod; 3. V-selected air inlet assembly; 301. V-selector; 302. Air outlet duct; 303. Second controller; 304. Frame; 305. Second fan blade; 306. Rotating rod; 307. Adjustment structure. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] In the description of this utility model, unless otherwise specified, "plurality" means two or more. Terms such as "front," "rear," "head," and "tail" indicate positions or relationships based on those shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified or limited, the terms "phase" and "connection" should be understood in a broad sense. For example, it 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] See also Figure 1 - Figure 4In this embodiment, a mill tail air outlet device with an optimized hot air pipe structure includes: a mill tail dust collecting component 1, an outer frame 103 is installed on the upper end of the mill tail dust collecting component 1, a first fan blade 104 is installed inside the outer frame 103, a driving rod 105 is connected to the side end of the first fan blade 104, an automatic control structure 106 is installed on the upper end of the driving rod 105, a conveying connection component 2 is installed on the upper end of the conveying connection component 2, and a connecting pipe 201 is installed on the upper end of the conveying connection component 2. The lower end of the connecting pipe 201 is equipped with a mounting frame 202, the upper end of the conveying connection component 2 is connected to the V-selected air inlet component 3, the upper end of the V-selected air inlet component 3 is equipped with an air outlet duct 302, the upper end of the air outlet duct 302 is equipped with a second controller 303, the interior of the air outlet duct 302 is equipped with a frame 304, the interior of the frame 304 is equipped with a second fan blade 305, the upper end of the second fan blade 305 is equipped with a rotating rod 306, and the upper end of the rotating rod 306 is equipped with an adjustment structure 307.

[0030] Through the above structure: the dust collecting component 1 at the end of the grinding mill facilitates the fixed connection of the internal electric shutter regulating valve to achieve precise control of the hot air flow and temperature; the conveying connection component 2 connects the pipelines to facilitate the subsequent conveying of the hot air; the V-selected air inlet component 3 facilitates the use of the hot air from the tail exhaust pipe of the clinker powder system to achieve effective drying of the mixed material.

[0031] See also Figure 1 - Figure 4 An air outlet pipe 101 is installed at the upper end of the grinding tail dust collecting assembly 1, and a first controller 102 is installed at the upper end of the air outlet pipe 101. A connecting hole is installed at the upper end of the inner wall of the air outlet pipe 101. The first fan blade 104 is a four-piece structure, and the number of driving rods 105 corresponds to the number of the first fan blades 104.

[0032] Through the above structure: the hot air inside the clinker powder system is transported and discharged by installing the air outlet pipe 101, the first controller 102 is installed at the upper end of the air outlet pipe 101, which is convenient for subsequent control of the electric louver regulating valve, the outer frame 103 is installed inside the air outlet pipe 101, which is convenient for subsequent connection of the first fan blade 104 inside, the first fan blade 104 is used in combination with the driving rod 105, which is convenient for subsequent precise control of the hot air flow and temperature, and the automatic control structure 106 is installed at the upper end of the driving rod 105, which is convenient for subsequent driving the driving rod 105 to rotate.

[0033] See also Figure 1 - Figure 4 A bracket 203 is installed at the lower end of the conveying connection component 2, a fixing rod 204 is installed inside the bracket 203, a connecting hole is installed at the upper end of the inner wall of the air outlet pipe 101, the first fan blade 104 is a four-piece structure, and the number of driving rods 105 corresponds to the number of the first fan blades 104.

[0034] Through the above structure: the pipes are connected by installing the connecting pipe 201, which is convenient for the subsequent transportation of hot air. The mounting frame 202 is installed at the lower end of the connecting pipe 201, which is convenient for the subsequent support of the connecting pipe 201. The bracket 203 is installed at the lower end of the mounting frame 202, which is convenient for the subsequent installation of the mounting frame 202 to the ground. The fixing rod 204 is installed at the upper end of the bracket 203, which is convenient for the subsequent fixing of the bracket 203.

[0035] See also Figure 1 - Figure 4 A V-selector 301 is installed at the upper end of the V-select air inlet assembly 3, the second controller 303 has the same structure as the first controller 102, the second fan blades 305 have the same structure as the first fan blades 104, and the number of rotating rods 306 corresponds to the number of second fan blades 305.

[0036] Through the above structure: the mixed material is screened by installing the V-selector 301, the air outlet pipe 302 is installed at the upper end of the V-selector 301, which is convenient for the subsequent connection of the connecting pipe 201, the second controller 303 is installed at the upper end of the air outlet pipe 302, which is convenient for the subsequent control of the internal adjustment structure 307, the frame 304 is installed inside the air outlet pipe 302, which is convenient for the subsequent connection of the second internal fan blade 305, the second fan blade 305 is used in combination with the rotating rod 306, which is convenient for the subsequent precise control of the hot air flow and temperature, and the adjustment structure 307 is installed at the upper end of the rotating rod 306, which is convenient for the subsequent rotation of the rotating rod 306.

[0037] When in use, first, install the connecting pipe 201 between the dust collecting outlet pipe 101 at the mill tail and the air outlet pipe 302 at the V sorting machine 301. The connecting pipe 201 is a spiral pipe structure with a length of 630 mm. An electric shutter regulating valve is installed inside the air outlet pipe 101. The first controller 102 is installed on the upper end of the air outlet pipe 101. The first controller 102 is started through the terminal. The first controller 102 is connected to the automatic control structure 106. The automatic control structure 106 is connected to the driving rod 105, which is convenient for the subsequent rotation of the driving rod 105. The driving rod 105 is inserted and connected to the inside of the first fan blade 104, which is convenient for the subsequent rotation of the first fan blade 104, so as to realize the precise control of the hot air flow and temperature. In order to facilitate the connection The tube 201 is fixed, and the lower end of the connecting tube 201 is fixed to the mounting bracket 202, and the mounting bracket 202 is connected to the bracket 203 at the lower end for use, so as to facilitate the subsequent connection and fixing of the connecting tube 201 at the upper end. In order to facilitate the subsequent uniform distribution of hot air, an electric shutter regulating valve is installed inside the air outlet pipe 302, and a second controller 303 is installed at the upper end of the air outlet pipe 302. The second controller 303 is started through the terminal, so as to facilitate the subsequent start-up of the adjustment structure 307. The adjustment structure 307 is connected to the rotating rod 306, so as to facilitate the subsequent rotation of the rotating rod 306, so as to facilitate the subsequent rotation of the second fan blade 305 at the upper end, so as to facilitate the subsequent precise control of the hot air flow and temperature, thereby reducing the moisture content of the mixed material and improving production efficiency.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mill tail air outlet device with optimized hot air pipe structure, characterized in that: The invention comprises a mill tail dust collecting assembly (1), wherein an outer frame (103) is installed at the upper end of the mill tail dust collecting assembly (1), a first fan blade (104) is installed inside the outer frame (103), a driving rod (105) is connected to the side end of the first fan blade (104), an automatic control structure (106) is installed at the upper end of the driving rod (105), a conveying connection assembly (2) is installed at the upper end of the conveying connection assembly (2), and a connecting pipe (201) is installed at the lower end of the connecting pipe (201), and a mounting frame ( 202), the upper end of the conveying connection component (2) is connected to the V-selected air inlet component (3), the upper end of the V-selected air inlet component (3) is installed with an air outlet duct (302), the upper end of the air outlet duct (302) is installed with a second controller (303), the interior of the air outlet duct (302) is installed with a frame (304), the interior of the frame (304) is installed with a second fan blade (305), the upper end of the second fan blade (305) is installed with a rotating rod (306), and the upper end of the rotating rod (306) is installed with an adjusting structure (307).

2. The mill tail air outlet device with optimized hot air pipe structure according to claim 1, characterized in that: An air outlet pipe (101) is installed at the upper end of the mill tail dust collecting assembly (1), and a first controller (102) is installed at the upper end of the air outlet pipe (101).

3. The mill tail air outlet device with optimized hot air pipe structure according to claim 1, characterized in that: A bracket (203) is installed at the lower end of the conveying connection assembly (2), and a fixing rod (204) is installed inside the bracket (203).

4. The mill tail air outlet device with optimized hot air pipe structure according to claim 1, characterized in that: A V-selector (301) is installed at the upper end of the V-selector air inlet assembly (3).

5. The mill tail air outlet device with optimized hot air pipe structure according to claim 1, characterized in that: The conveying connection assembly (2) is installed on the upper right side of the air outlet pipe (101) in the mill tail dust collection assembly (1), and the V-selected air inlet assembly (3) is installed on the upper right side of the connecting pipe (201) in the conveying connection assembly (2).

6. The mill tail air outlet device with optimized hot air pipe structure according to claim 2, characterized in that: A connection hole is installed at the upper end of the inner wall of the air outlet pipe (101), the first fan blades (104) are a four-piece structure, and the number of the driving rods (105) corresponds to the number of the first fan blades (104).

7. The mill tail air outlet device with optimized hot air pipe structure according to claim 3, characterized in that: The connecting tube (201) is a spiral tube, the length of the connecting tube (201) is 630 mm, and the curvature of the upper end of the bracket (203) fits the connecting tube (201).

8. The mill tail air outlet device with optimized hot air pipe structure according to claim 4, characterized in that: The second controller (303) has the same structure as the first controller (102), the second fan blade (305) has the same structure as the first fan blade (104), and the number of the rotating rods (306) corresponds to the number of the second fan blades (305).

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