Feeding structure and graphite combustion furnace

Abstract

The utility model provides a feeding structure which comprises a transversely-arranged conveying pipe, a conveying screw coaxially arranged in the conveying pipe and a driving motor driving the conveying screw to rotate, and the driving motor is fixedly connected with one end of the conveying pipe. The end, close to the driving motor, of the conveying pipe is further fixedly connected with a feeding hopper communicated with the conveying pipe, the conveying pipe is further fixedly connected with an air inlet pipe communicated with the conveying pipe, the communication position of the air inlet pipe and the conveying pipe and the driving motor are arranged on the two sides of the feeding hopper, and the air inlet pipe is further connected with a high-pressure air pump. The discharging pipe is fixedly connected with the end, deviating from the driving motor, of the conveying pipe, the discharging pipe is vertically arranged, the lower end of the discharging pipe communicates with the conveying pipe, and the upper end of the discharging pipe is open. The conveying pipe solves the problem that in the prior art, fuel in the conveying pipe can be ignited to cause danger. The utility model further provides a graphite combustion furnace.

Description

Technical Field

[0001] The utility model relates to the technical field of combustion equipment, in particular to a feeding structure and a graphite combustion furnace. Background Art

[0002] Combustion equipment is one of the general equipment that generates heat energy for production by burning fuel. Combustion equipment is generally provided with a furnace. After the fuel is put in, it can be ignited and burned to generate heat. In the prior art, in order to improve the utilization efficiency of fuel, the fuel can be prepared into small particles and then introduced for combustion. Small particles of fuel can burn faster and thus have better effects. In the prior art, the transportation of granular materials is generally carried out by spiral conveying (including a conveying pipe and a conveying screw arranged therein), which has higher efficiency. When used specifically, the conveying pipe needs to be arranged above the furnace so that the fuel can enter smoothly. The flame generated after the fuel burns may enter the conveying pipe and ignite the fuel in the conveying pipe, causing danger. Utility Model Content

[0003] In view of the deficiencies existing in the prior art, the utility model provides a feeding structure, which solves the problem in the prior art that the fuel in the delivery pipe may be ignited, leading to danger.

[0004] According to an embodiment of the utility model, a feeding structure includes a transversely arranged conveying pipe, a conveying screw coaxially arranged in the conveying pipe, and a driving motor driving the conveying screw to rotate, the driving motor is fixedly connected to one end of the conveying pipe, and the end of the conveying pipe close to the driving motor is also fixedly connected to a feeding hopper connected thereto, the conveying pipe is also fixedly connected to an air intake pipe connected thereto, and the connecting point between the air intake pipe and the conveying pipe and the driving motor are arranged on both sides of the feeding hopper, and the air intake pipe is also connected to a high-pressure air pump; it also includes a discharge pipe fixedly connected to the end of the conveying pipe away from the driving motor, the discharge pipe is vertically arranged, the lower end of the discharge pipe is connected to the conveying pipe, and the upper end is open.

[0005] In the above embodiment, small particle fuel is transported through the delivery pipe, and the high-pressure air pump provided at the same time can introduce high-pressure airflow to increase the speed of material transportation, and the high-pressure airflow carries small particles out of the discharge pipe, thereby blowing upward to enable the fuel to be delivered. At the same time, the flame generated by the combustion is also upward. As long as the combustion takes place at a higher position, the flame will not ignite the fuel in the delivery pipe below, thereby solving the problem in the prior art that the fuel in the delivery pipe may be ignited and cause danger.

[0006] Furthermore, the conveying screw includes a driving shaft, one end of which rotates and extends outside the conveying pipe to be connected to the driving motor, and the other end extends into the discharge pipe. The conveying screw also includes spiral blades fixedly wrapped around the outside of the driving shaft.

[0007] Furthermore, the connection between the feed hopper and the conveying pipe is located above the spiral blade.

[0008] Further, the air inlet pipe is connected to a side surface of the delivery pipe.

[0009] Furthermore, the upper end of the discharge pipe is also fixedly connected with a guide cover, which has a guide surface with an arc-shaped transition from bottom to top. The guide surface is located directly above the discharge pipe and the vertical upward projection of the discharge pipe is located on the guide surface.

[0010] Furthermore, the top surface of the air deflector is an upwardly convex arc surface, and the outer periphery of the arc surface and the outer periphery of the air deflector surface are in an arc-shaped transition.

[0011] Furthermore, a mounting frame is fixedly connected inside the discharge pipe, and the lower end of the air guide cover is fixedly connected to the mounting frame via a connecting rod.

[0012] According to another embodiment, a graphite combustion furnace is provided, which includes the above-mentioned feeding structure.

[0013] Furthermore, it also includes a combustion furnace body, the conveying pipe is fixedly connected to the combustion furnace body, the discharge pipe is located at the lower end of the combustion furnace body, and the feed hopper is located outside the combustion furnace body.

[0014] Furthermore, a reinforcing rod is fixedly connected between the discharge pipe and the combustion furnace body.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] By introducing high-pressure air through a high-pressure air pump, the efficiency of fuel transportation can be improved. At the same time, air is also introduced to further improve the combustion efficiency. The high-pressure airflow carries small particles of fuel out of the discharge pipe, thereby blowing upward to enable the fuel to be released. At the same time, the flame generated by the combustion is also upward. As long as the combustion takes place at a higher position, the flame will not ignite the fuel in the delivery pipe below, thereby solving the problem in the prior art that the fuel in the delivery pipe may be ignited and cause danger. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0018] Figure 2 for Figure 1 A is an enlarged schematic diagram of the local structure at center A;

[0019] In the above drawings:

[0020] Conveying pipe 1, conveying screw 2, driving motor 3, feeding hopper 4, air inlet pipe 5, high-pressure air pump 6, discharging pipe 7, combustion furnace body 8, reinforcing rod 9, driving shaft 10, spiral blade 11, guide cover 12, mounting frame 13, connecting rod 14, and guide surface 15. DETAILED DESCRIPTION

[0021] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In an exemplary embodiment, Figure 1 , 2 As shown, this embodiment provides a feeding structure, which includes a transversely arranged conveying pipe 1, a conveying screw 2 coaxially arranged in the conveying pipe 1, and a driving motor 3 for driving the conveying screw 2 to rotate, the driving motor 3 is fixedly connected to one end of the conveying pipe 1, and the end of the conveying pipe 1 close to the driving motor 3 is also fixedly connected to a feeding hopper 4 connected thereto, the conveying pipe 1 is also fixedly connected to an air intake pipe 5 connected thereto, and the connection point between the air intake pipe 5 and the conveying pipe 1 and the driving motor 3 are arranged on both sides of the feeding hopper 4, and the air intake pipe 5 is also connected to a high-pressure air pump 6; it also includes a discharge pipe 7 fixedly connected to the end of the conveying pipe 1 away from the driving motor 3, the discharge pipe 7 is vertically arranged, the lower end is connected to the conveying pipe 1, and the upper end is open.

[0024] In the above embodiment, small particle fuel is transported through the conveying pipe 1, and the high-pressure air pump 6 provided at the same time can introduce high-pressure airflow to increase the speed of material transportation, and the high-pressure airflow carries small particles out of the discharge pipe 7, thereby blowing upward to enable the fuel to be delivered. At the same time, the flame generated by the combustion is also upward. As long as the combustion is carried out at a higher position, the flame will not ignite the fuel in the conveying pipe 1 below, thereby solving the problem in the prior art that the fuel in the conveying pipe 1 may be ignited and cause danger.

[0025] like Figure 1 , 2As shown, in another exemplary embodiment, a graphite combustion furnace is also provided, which includes a combustion furnace body 8 and the above-mentioned feeding structure, the conveying pipe 1 is fixedly connected to the combustion furnace body 8, the discharge pipe 7 is located at the lower end of the combustion furnace body 8, and the feed hopper 4 is located outside the combustion furnace body 8, that is, the conveying screw 2 is driven by the driving motor 3 so that the fuel entering through the feed hopper 4 can smoothly enter the lower end of the combustion furnace body 8. With the assistance of high-pressure airflow, the fuel moves upward and is ignited at the top to achieve combustion. In this way, the flame will only rush upward and will not move downward, thereby avoiding igniting the fuel in the conveying pipe 1 and causing danger; further, a reinforcing rod 9 is fixedly connected between the discharge pipe 7 and the combustion furnace body 8, which can improve the installation stability of the conveying pipe 1.

[0026] like Figure 1 , 2 As shown, in more detail, the conveying screw 2 includes a driving shaft 10, one end of the driving shaft 10 rotates and extends outside the conveying pipe 1 to be connected to the driving motor 3, and the other end extends into the discharge pipe 7. The conveying screw 2 also includes a spiral blade 11 fixedly wrapped around the outside of the driving shaft 10. The connection between the feed hopper 4 and the conveying pipe 1 is located above the spiral blade 11. The fuel enters the conveying pipe 1 through the feed hopper 4, and then moves under the push of the spiral blade 11. The set air intake pipe 5 introduces high-pressure airflow (achieved by the high-pressure air pump 6). The air intake pipe 5 is connected to the side of the conveying pipe 1 and when the spiral blade 11 rotates, it can provide guidance for the high-pressure airflow so that the high-pressure airflow moves into the combustion furnace body 8, thereby accelerating the fuel delivery speed.

[0027] like Figure 1 , 2 As shown, in a further exemplary scheme, the upper end of the discharge pipe 7 is also fixedly connected to a guide cover 12, and the guide cover 12 has a guide surface 15 with an arc-shaped transition from bottom to top. The guide surface 15 is located directly above the discharge pipe 7 and the vertical upward projection of the discharge pipe 7 is located on the guide surface 15. The arc-shaped guide surface 15 can make the high-pressure airflow mixed with the fuel diffuse obliquely upward along the guide surface 15, thereby making the fuel feeding more uniform. At the same time, the guide cover 12 can prevent the burning ashes from falling back into the discharge pipe 7. The top surface of the guide cover 12 is an upwardly protruding arc surface, and the outer periphery of the arc surface and the outer periphery of the guide surface 15 are in an arc-shaped transition. The falling ashes may fall on the top surface of the guide cover 12. This arrangement allows the ashes to move downward more smoothly and avoid excessive accumulation on the guide cover 12; in more detail, a mounting frame 13 is also fixedly connected to the discharge pipe 7, and the lower end of the guide cover 12 is fixedly connected to the mounting frame 13 through a connecting rod 14. The mounting frame 13 does not cover the upper end opening of the entire discharge pipe 7, so that the fuel can be smoothly discharged with the high-pressure airflow, and also provides a direct installation foundation for the guide cover 12.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A feeding structure, characterized in that: It includes a transversely arranged conveying pipe, a conveying screw coaxially arranged in the conveying pipe, and a driving motor for driving the conveying screw to rotate, the driving motor is fixedly connected to one end of the conveying pipe, and the end of the conveying pipe close to the driving motor is also fixedly connected to a feed hopper connected thereto, the conveying pipe is also fixedly connected to an air intake pipe connected thereto, and the connection point between the air intake pipe and the conveying pipe and the driving motor is arranged on both sides of the feed hopper, and the air intake pipe is also connected to a high-pressure air pump; it also includes a discharge pipe fixedly connected to the end of the conveying pipe away from the driving motor, the discharge pipe is vertically arranged, the lower end of the discharge pipe is connected to the conveying pipe, and the upper end is open.

2. The feeding structure according to claim 1, characterized in that: The conveying screw includes a driving shaft, one end of which rotates and extends outside the conveying pipe to be connected to the driving motor, and the other end extends into the discharge pipe. The conveying screw also includes spiral blades fixedly surrounding the driving shaft.

3. The feeding structure according to claim 2, characterized in that: The connection between the feed hopper and the conveying pipe is located above the spiral blade.

4. The feeding structure according to claim 1, characterized in that: The air inlet pipe is connected to the side surface of the delivery pipe.

5. The feeding structure according to any one of claims 1 to 3, characterized in that: The upper end of the discharge pipe is also fixedly connected with a flow guide cover, which has a flow guide surface with an arc-shaped transition from bottom to top. The flow guide surface is located directly above the discharge pipe and the vertical upward projection of the discharge pipe is located on the flow guide surface.

6. The feeding structure according to claim 5, characterized in that: The top surface of the air guide cover is an upwardly convex arc surface, and the outer periphery of the arc surface and the outer periphery of the air guide surface are in an arc-shaped transition.

7. The feeding structure according to claim 5, characterized in that: A mounting frame is also fixedly connected inside the discharge pipe, and the lower end of the air guide cover is fixedly connected to the mounting frame via a connecting rod.

8. A graphite combustion furnace, characterized in that: Comprising the feeding structure as described in any one of claims 1-7.

9. The graphite combustion furnace according to claim 8, characterized in that: It also includes a combustion furnace body, the conveying pipe is fixedly connected to the combustion furnace body, the discharge pipe is located at the lower end of the combustion furnace body, and the feed hopper is located outside the combustion furnace body.

10. The graphite combustion furnace according to claim 9, characterized in that: A reinforcing rod is also fixedly connected between the discharge pipe and the combustion furnace body.

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