Device for improving combustion rate of pulverized coal in kiln

Abstract

The utility model relates to the technical field of pulverized coal combustion, and discloses a device for improving the combustion rate of pulverized coal in a kiln, which comprises a main body mechanism. By arranging the flange connector, the device can be connected with an external pulverized coal storage device through the flange connector, so that pulverized coal can flow into the preheating cylinder through the conveying cylinder by means of the flange connector, the heater is started to release heat, and the heat is transmitted out from the heating port and penetrates through the filter screen to fill the whole preheating cylinder; at the moment, a motor is started, a rotating shaft rotates through the motor, and a shaft rod and a spiral blade which are connected with the rotating shaft are driven to rotate through rotation of the rotating shaft, so that the pulverized coal in the preheating cylinder is stirred, and when the pulverized coal is stirred, heat transmitted from a heating port can uniformly act on the surface of the pulverized coal, so that the pulverized coal is uniformly heated; and after the pulverized coal is preheated, the threaded bolt below the preheating cylinder is screwed out, and the pulverized coal can naturally flow out of the discharge port due to the pointed cone shape of the preheating cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of coal powder combustion, in particular to a device for improving the combustion rate of coal powder in a kiln. Background Art

[0002] Coal powder is a powdered coal product, usually made by grinding coal, and it is an important energy resource that can be used for a variety of purposes.

[0003] After being ground, existing pulverized coal is preheated by heating the air with a pulverized coal heater or dryer, thereby indirectly preheating the pulverized coal. However, since the air is heated and the heat of the air acts on the pulverized coal, the pulverized coal at the bottom or buried deep receives very little heat, so that part of the pulverized coal is not well preheated, which affects subsequent combustion and greatly reduces the combustion rate. Therefore, a device is needed to improve the combustion rate of pulverized coal in a kiln. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a device for improving the combustion rate of coal powder in a kiln.

[0005] The utility model is implemented by the following technical scheme: a device for improving the combustion rate of coal powder in a kiln, comprising a main body mechanism, a connecting mechanism is arranged on the right side of the main body mechanism, and a fixing mechanism is arranged at the bottom of the main body;

[0006] The main body mechanism includes a preheating cylinder, a barrel cover is arranged on the top of the preheating cylinder, a heater is fixedly connected to the top of the barrel cover, a heating port is fixedly connected to the bottom of the barrel cover, a filter is fixedly connected to the bottom of the heating port, a motor is fixedly connected to the bottom of the barrel cover, a rotating shaft is rotatably connected to the bottom of the motor, a shaft is fixedly connected to the bottom of the rotating shaft, a spiral blade is fixedly connected to the surface of the shaft, a discharge port is opened at the bottom of the preheating cylinder, and a threaded plug is threadedly connected to the inner wall of the discharge port.

[0007] Through the above technical solution, the heater is started to release heat, and the heat is transmitted from the heating port and passes through the filter to fill the entire interior of the preheating cylinder. At this time, the motor is started again and the rotating shaft is rotated by the motor. The rotation of the rotating shaft drives the shaft rod and spiral blades connected thereto to rotate, thereby stirring the pulverized coal inside the preheating cylinder. When the pulverized coal is stirred, the heat transmitted from the heating port will evenly act on the surface of the pulverized coal, so that it is evenly heated.

[0008] As a further improvement of the above solution, the bottom of the preheating cylinder is configured in a pointed cone shape.

[0009] Through the above technical solution, when the coal powder is preheated, the threaded bolt under the preheating tube is screwed out, and the coal powder will naturally flow out from the discharge port due to the conical shape of the preheating tube tip, thereby facilitating subsequent combustion.

[0010] As a further improvement of the above solution, the discharge port is connected to the interior of the preheating cylinder.

[0011] As a further improvement of the above solution, the connecting mechanism includes a feeding cylinder, which is fixedly connected to the right side of the preheating cylinder, and a flange interface is fixedly connected to the top of the feeding cylinder.

[0012] Through the above technical solution, by setting the flange interface, it can be connected to the external coal powder storage device through the flange interface, so that the coal powder can flow through the conveying tube to the inside of the preheating tube for preheating by means of the flange interface.

[0013] As a further improvement of the above solution, the feeding cylinder is connected to the interior of the preheating cylinder.

[0014] As a further improvement of the above solution, the fixing mechanism includes a fixing ring, which is fixedly connected to the surface of the preheating cylinder, a fixing rod is fixedly connected to the bottom of the fixing ring, and a positioning ring is fixedly connected to the bottom of the fixing rod.

[0015] According to the above technical solution, a positioning ring larger than the fixing ring is arranged and placed on the ground, and then connected through four fixing rods, so that the preheating cylinder connected to the fixing ring can be fixed.

[0016] As a further improvement of the above solution, four fixing rods are provided, and the four fixing rods are distributed at equal distances with the preheating cylinder as the center.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model is provided with a flange interface, which can be connected to an external coal powder storage device through the flange interface, so that the coal powder can flow into the interior of the preheating cylinder through the feeding cylinder with the help of the flange interface, and the heater is started to release heat, and the heat is transmitted from the heating port and passes through the filter to fill the entire interior of the preheating cylinder. At this time, the motor is started again and the rotating shaft is rotated by the motor, and the shaft and spiral blades connected thereto are driven to rotate through the rotation of the rotating shaft, so that the coal powder inside the preheating cylinder is stirred. When the coal powder is stirred, the heat transmitted from the heating port will evenly act on the surface of the coal powder, so that it is evenly heated, thereby improving its combustion rate. When the coal powder is preheated, the threaded bolt under the preheating cylinder is screwed out, and the coal powder will naturally flow out from the discharge port due to the conical shape of the preheating cylinder tip, thereby facilitating subsequent transportation and combustion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the preheating cylinder of the utility model;

[0021] Figure 3 This is a schematic diagram of the heating port structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the preheating cylinder of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the feeding tube of the utility model.

[0024] Description of main symbols:

[0025] 1. Main body; 101. Preheating cylinder; 102. Drum cover; 103. Heater; 104. Heating port; 105. Filter; 106. Motor; 107. Rotating shaft; 108. Shaft; 109. Spiral blade; 110. Discharge port; 111. Threaded plug; 2. Connecting mechanism; 201. Feeding cylinder; 202. Flange interface; 3. Fixing mechanism; 301. Fixing ring; 302. Fixing rod; 303. Positioning ring. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0027] Example:

[0028] Please combine Figure 1-5, a device for improving the combustion rate of pulverized coal in a kiln in this embodiment comprises a main body mechanism 1, a connecting mechanism 2 is arranged on the right side of the main body mechanism 1, and a fixing mechanism 3 is arranged at the bottom of the main body; the main body mechanism 1 comprises a preheating cylinder 101, a barrel cover 102 is arranged on the top of the preheating cylinder 101, a heater 103 is fixedly connected to the top of the barrel cover 102, a heating port 104 is fixedly connected to the bottom of the barrel cover 102, a filter screen 105 is fixedly connected to the bottom of the heating port 104, a motor 106 is fixedly connected to the bottom of the barrel cover 102, a rotating shaft 107 is rotatably connected to the bottom of the motor 106, a shaft 108 is fixedly connected to the bottom of the rotating shaft 107, a spiral blade 109 is fixedly connected to the surface of the shaft 108, a discharge port 110 is opened at the bottom of the preheating cylinder 101, and the inner wall of the discharge port 110 is threaded A threaded plug 111 is connected, and the heater 103 is started to release heat, and the heat is transmitted from the heating port 104 and passes through the filter 105 to fill the entire preheating tube 101. At this time, the motor 106 is started again and the rotating shaft 107 is rotated by the motor 106, and the shaft 108 and the spiral blade 109 connected thereto are driven to rotate by the rotation of the rotating shaft 107, so as to stir the coal powder inside the preheating tube 101. When the coal powder is stirred, the heat transmitted from the heating port 104 will evenly act on the surface of the coal powder, so that it can be evenly heated. The bottom of the preheating tube 101 is set in a pointed cone shape. When the coal powder is preheated, the threaded bolt under the preheating tube 101 is screwed out, and the coal powder will naturally flow out from the discharge port 110 due to the pointed cone shape of the preheating tube 101, so as to facilitate subsequent combustion. The discharge port 110 is connected to the inside of the preheating tube 101. The connection mechanism 2 includes a feeding barrel 201, which is fixedly connected to the right side of the preheating barrel 101. A flange interface 202 is fixedly connected to the top of the feeding barrel 201. By setting the flange interface 202, the feeding barrel 201 can be connected to an external coal powder storage device through the flange interface 202, so that the coal powder can flow through the feeding barrel 201 to the inside of the preheating barrel 101 for preheating with the help of the flange interface 202. The feeding barrel 201 is connected to the inside of the preheating barrel 101. The fixing mechanism 3 includes a fixing ring 301, which is fixedly connected to the surface of the preheating barrel 101, and a fixing rod 302 is fixedly connected to the bottom of the fixing ring 301. A positioning ring 303 is fixedly connected to the bottom of the fixing rod 302. By setting a positioning ring 303 larger than the fixing ring 301 and placing it on the ground, and then connecting it through four fixing rods 302, the preheating barrel 101 connected to the fixing ring 301 can be fixed. Four fixing rods 302 are provided, and the four fixing rods 302 are distributed at equal distances with the preheating cylinder 101 as the center.

[0029] The implementation principle of a device for improving the combustion rate of coal powder in a kiln in an embodiment of the present application is as follows: the device for improving the combustion rate of coal powder in a kiln can be connected to an external coal powder storage device through the flange interface 202 by setting a flange interface 202, so that the coal powder can flow into the interior of the preheating cylinder 101 through the feeding cylinder 201 with the help of the flange interface 202, and the heater 103 is started to release heat, and the heat is transmitted from the heating port 104 and passes through the filter 105 to fill the entire interior of the preheating cylinder 101, and then the motor 106 is started and the motor 106 is used to heat the preheating cylinder 101. 106 causes the rotating shaft 107 to rotate, and the rotation of the rotating shaft 107 drives the shaft rod 108 and the spiral blade 109 connected thereto to rotate, thereby stirring the pulverized coal inside the preheating cylinder 101. When the pulverized coal is stirred, the heat transmitted from the heating port 104 will evenly act on the surface of the pulverized coal, so that it is evenly heated, thereby improving its combustion rate. When the pulverized coal is preheated, the threaded bolt under the preheating cylinder 101 is screwed out, and the pulverized coal will naturally flow out from the discharge port 110 due to the pointed cone shape of the preheating cylinder 101, thereby facilitating subsequent transportation and combustion.

[0030] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A device for improving the combustion rate of coal powder in a kiln, characterized in that: It comprises a main body mechanism (1), a connecting mechanism (2) is arranged on the right side of the main body mechanism (1), and a fixing mechanism (3) is arranged at the bottom of the main body; The main body mechanism (1) comprises a preheating cylinder (101), a barrel cover (102) is arranged on the top of the preheating cylinder (101), a heater (103) is fixedly connected to the top of the barrel cover (102), a heating port (104) is fixedly connected to the bottom of the barrel cover (102), a filter screen (105) is fixedly connected to the bottom of the heating port (104), a motor (106) is fixedly connected to the bottom of the barrel cover (102), a rotating shaft (107) is rotatably connected to the bottom of the motor (106), a shaft (108) is fixedly connected to the bottom of the rotating shaft (107), a spiral blade (109) is fixedly connected to the surface of the shaft (108), and a discharge port (110) is opened at the bottom of the preheating cylinder (101), and a threaded plug (111) is threadedly connected to the inner wall of the discharge port (110).

2. A device for improving the combustion rate of pulverized coal in a kiln as claimed in claim 1, characterized in that: The bottom of the preheating cylinder (101) is arranged in a pointed cone shape.

3. A device for improving the combustion rate of pulverized coal in a kiln as claimed in claim 1, characterized in that: The discharge port (110) is in communication with the interior of the preheating cylinder (101).

4. A device for improving the combustion rate of pulverized coal in a kiln as claimed in claim 1, characterized in that: The connection mechanism (2) comprises a material delivery barrel (201), the material delivery barrel (201) being fixedly connected to the right side of the preheating barrel (101), and a flange interface (202) being fixedly connected to the top of the material delivery barrel (201).

5. A device for improving the combustion rate of pulverized coal in a kiln as claimed in claim 4, characterized in that: The feeding cylinder (201) is in communication with the interior of the preheating cylinder (101).

6. A device for improving the combustion rate of pulverized coal in a kiln as claimed in claim 1, characterized in that: The fixing mechanism (3) comprises a fixing ring (301), the fixing ring (301) being fixedly connected to the surface of the preheating cylinder (101), the fixing ring (301) being fixedly connected to a fixing rod (302) at the bottom of the fixing ring (301), and the fixing rod (302) being fixedly connected to a positioning ring (303) at the bottom of the fixing rod (302).

7. A device for improving the combustion rate of pulverized coal in a kiln as claimed in claim 6, characterized in that: Four fixing rods (302) are provided, and the four fixing rods (302) are distributed at equal distances with the preheating cylinder (101) as the center.

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