Fuel feeding device of heat-conducting oil furnace

Abstract

The utility model discloses a fuel feeding device for a heat-conducting oil furnace, relates to the technical field of feeding of heat-conducting oil furnaces, and solves the technical problems that the conventional fuel feeding device is slow in feeding, easy to block and low in working efficiency. Comprising a feeding channel, a feeding port formed in the top face of the feeding channel and a discharging port formed in the bottom face of one side. The spiral conveyor is rotationally arranged in the feeding channel, and the spiral conveyor comprises a rotating rod and a group of spiral blades arranged on the rotating rod in a sleeving manner; the material guide bin is connected to the feeding port of the feeding channel, a pair of inverted splayed material guide plates is arranged at the upper end of a port of the material guide bin, and a pair of material extrusion rollers are rotationally arranged on the bottom surfaces of the material guide plates; by means of the design, the blocking problem possibly occurring in the adding and conveying process of coal briquettes can be effectively solved, and the feeding convenience is remarkably improved. And combustion is more sufficient and uniform, the risk of slag bonding can be reduced, and the combustion efficiency is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of thermal oil furnace charging, in particular to a thermal oil furnace fuel charging device. Background Art

[0002] The thermal oil furnace is a new type of thermal energy equipment that uses thermal oil as a circulating medium to provide heat. The thermal oil is heated at high temperature and circulated in liquid phase through a high-temperature oil pump to transport the heated thermal oil to the heat-consuming equipment. The oil then returns to the thermal oil furnace from the oil outlet of the heat-consuming equipment for heating, forming a complete circulating heating system. Before use, the thermal oil furnace needs to be loaded with sufficient coal or other fuel in the fuel tank.

[0003] At present, the commonly used fuel adding method is to load the fuel manually. This method not only increases the labor intensity, but is also slow and time-consuming, thus affecting the efficiency of the thermal oil furnace.

[0004] The second common fuel feeding method involves introducing coal into a hopper and then releasing it by opening a control valve at the outlet on the bottom of the hopper. However, this method can cause blockages due to the coal blocks squeezing against each other at the outlet, leading to delayed feeding and reduced efficiency. Both methods suffer from slow feeding, clogging, and low efficiency. Therefore, we designed a fuel feeding device for thermal oil furnaces to address these issues. Utility Model Content

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a fuel charging device for a thermal oil furnace, which solves the technical problems of the prior art fuel charging devices such as slow charging, easy clogging and low working efficiency.

[0006] To achieve the above-mentioned purpose, according to an embodiment of the first aspect of the present invention, a fuel feeding device for a thermal oil furnace is provided, comprising a feeding channel, a feeding port provided on the top surface of the feeding channel, and a discharge port on one side of the bottom surface;

[0007] Also includes:

[0008] A screw conveyor is rotatably disposed in the feeding channel, and the screw conveyor includes a rotating rod and a group of spiral blades sleeved on the rotating rod;

[0009] The material guide bin is connected to the feeding port of the feeding channel. A pair of inverted eight-shaped material guide plates are provided at the upper end of the port of the material guide bin, and a pair of extrusion rollers are rotatably provided on the bottom surface of the material guide plates.

[0010] A further improvement is that a driving device is provided on the feeding channel, which includes a pulley 1 rotatably connected to the side of the feeding channel and connected to the rotating rod, a stepper motor connected to the top side of the feeding channel, and a pulley 2 connected to the main shaft end of the stepper motor and connected to the pulley 1 by a belt.

[0011] A further improvement is that the external rotation of the material guide bin is provided with a gear that is meshed and connected to each extrusion roller respectively, and the gear is driven by a DC servo motor externally arranged on the material guide bin, and the main shaft of the DC servo motor is connected to the gear.

[0012] A further improvement is that a flange assembly frame is additionally connected to the feeding channel and the feeding port, and the bottom surface of the material guide bin is connected to the flange assembly frame by fixing bolts.

[0013] A further improvement is that a pair of shock-absorbing buffers are additionally provided, one end of each of the shock-absorbing buffers is rotatably connected to the inner wall surface of each material guide plate via a rotating shaft, and the other end is rotatably connected to the inner wall surface of the material guide bin via a rotating shaft.

[0014] A further improvement is that the notches formed on the bottom surfaces of the pair of guide plates correspond to the inner sides of a pair of extrusion rollers.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] (1) The utility model starts the DC servo motor to drive a pair of gears to start rotating. Subsequently, the coal blocks are transported and fall onto the guide plates through the guide opening on the bin cover. Since each guide plate is equipped with a shock-absorbing buffer on the back side, this design effectively reduces the impact of the coal blocks on the guide plate surface, playing a good protective role.

[0017] (2) The utility model allows the coal blocks to be squeezed into crushed or smaller coal blocks by a pair of extrusion rollers moving in opposite directions, and smoothly fall into the feeding port of the feeding channel. Subsequently, the stepper motor drives pulley 2, pulley 1 and the screw conveyor to start rotating, so that the coal blocks, under the action of the spiral blades, evenly transport the crushed coal or small coal blocks in the feeding channel from the discharge port to the feeding point of the thermal oil furnace. This design not only effectively prevents the blockage problem that may occur during the addition and transportation of coal blocks, but also significantly improves the convenience of feeding. At the same time, since the coal blocks are evenly fed into the thermal oil furnace, their combustion is more sufficient and uniform, which helps to reduce the risk of slagging and further improves the combustion efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the meshing structure of a pair of gears outside the guide bin of the utility model.

[0021] Markings in the figure:

[0022] 1. Feeding channel; 11. Feeding port; 12. Discharging port; 101. Flange assembly frame; 2. Driving device; 21. Pulley 1; 22. Pulley 2; 23. Stepper motor; 3. Screw conveyor; 31. Rotating rod; 32. Spiral blade; 4. Material guide bin; 41. Material guide plate; 42. Extrusion roller; 43. Gear; 44. Bin cover; 5. Shock absorber. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figure 1 As shown, a fuel feeding device for a thermal oil furnace comprises a feeding channel 1, a feeding port 11 arranged on the top surface of the feeding channel 1, and a discharge port 12 on the bottom surface of one side;

[0025] like Figure 1 and Figure 2 As shown, the embodiment includes: a screw conveyor 3, which is rotatably arranged in the feeding channel 1, and the screw conveyor 3 includes a rotating rod 31 and a group of spiral blades 32 sleeved on the rotating rod 31;

[0026] Specifically, the feeding channel 1 is provided with a driving device 2, which includes a pulley 1 21 rotatably connected to the side of the feeding channel 1 and connected to the rotating rod 31, a stepper motor 23 connected to one side of the top surface of the feeding channel 1, and a pulley 22 connected to the main shaft end of the stepper motor 23 and connected to the pulley 1 21 via a belt. By starting the stepper motor 23, the pulley 22, the pulley 1 21 and the screw conveyor 3 start to rotate, so that the coal blocks are evenly transported from the discharge port 12 to the feeding point of the thermal oil furnace under the action of the spiral blades 32, thereby preventing blockage.

[0027] like Figure 2 and Figure 3 As shown, the implementation includes: a material guide bin 4, connected to the feeding port 11 of the feeding channel 1, a pair of inverted eight-shaped material guide plates 41 are provided at the upper end of the port of the material guide bin 4, and a pair of squeezing rollers 42 are rotatably provided on the bottom surface of the material guide plates 41;

[0028] Specifically, the external rotation of the guide bin 4 is provided with a gear 43 that is meshed and connected to each extrusion roller 42. The gear 43 is driven by a DC servo motor externally provided on the guide bin 4. The main shaft of the DC servo motor is connected to the gear 43. The DC servo motor drives the gear 43 and the extrusion rollers 42 to rotate. The coal blocks are squeezed into crushed or smaller coal blocks under the action of the pair of extrusion rollers 42 moving in opposite directions, and smoothly fall into the feeding port 11 of the feeding channel 1, which can make the combustion more complete and uniform, and help reduce the risk of slagging.

[0029] Specifically, the notches formed on the bottom surfaces of the pair of guide plates 41 correspond to the inner sides of the pair of extrusion rollers 42, and the top surface of the guide bin 4 is provided with a bin cover 44, and the bin cover 44 is provided with a guide port;

[0030] like Figure 1 As shown, in this embodiment, a flange assembly frame 101 is additionally connected to the feeding channel 1 and the feeding port 11, and the bottom surface of the guide bin 4 is connected to the flange assembly frame 101 by fixing bolts for installation of the entire feeding device.

[0031] like Figure 2 As shown, in this embodiment, a pair of shock-absorbing buffers 5 are further provided. One end of each shock-absorbing buffer 5 is connected to the inner wall surface of each guide plate 41 through a rotating shaft, and the other end is rotated on the inner wall surface of the guide bin 4 through a rotating shaft. By equipping the back side of the guide plate 41 with a shock-absorbing buffer 5, the impact of coal blocks on the surface of the guide plate 41 can be effectively reduced, thereby playing a good protective role.

[0032] like Figures 1 to 3 As shown, in this embodiment, the specific models of the shock-absorbing buffer 5, stepper motor 23, and DC servo motor in the application document are selected and installed according to the actual needs on site. The shock-absorbing buffer 5 is a commercially available product of the prior art, and its working principle is public. Before implementation, the fuel coal block conveying pipeline is connected to the feed port on the bin cover 44, and one end of the discharge port 12 of the feeding channel 1 is inserted into the feeding place of the thermal oil furnace, and the flange assembly frame 101 is connected to the thermal oil furnace. In addition, it should be noted that this application document only improves the shortcomings of the existing fuel feeding device, such as slow feeding, easy clogging, and low working efficiency, and does not involve other aspects. The working principle of this thermal oil furnace fuel feeding device is introduced as follows:

[0033] To use this new model, on-site staff activate the DC servo motor, driving a pair of gears 43 to begin rotation. The coal is then conveyed through the guide opening in the bin cover 44 and lands on the guide plates 41. Each guide plate 41 is equipped with a shock-absorbing buffer 5 on its back, effectively mitigating the impact of the coal on the guide plates 41 and providing excellent protection.

[0034] Next, the coal is squeezed into small pieces or smaller chunks by a pair of oppositely moving extrusion rollers 42, which then smoothly fall into the feeding port 11 of the feeding channel 1. Subsequently, the stepper motor 23 drives pulleys 22 and 1, as well as the screw conveyor 3, to rotate. The screw blades 32 then evenly convey the coal in the feeding channel 1 from the discharge port 12 to the feeding area of ​​the thermal oil furnace, thus completing the entire feeding process.

[0035] This design not only effectively prevents blockages during coal loading and conveying, but also significantly improves the convenience of adding materials. Furthermore, because the coal is evenly fed into the thermal oil furnace, it burns more fully and evenly, helping to reduce the risk of slagging and further improving combustion efficiency.

[0036] The above embodiments are only used to illustrate the technical method of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A fuel feeding device for a thermal oil furnace, comprising a feeding channel (1), a feeding port (11) arranged on the top surface of the feeding channel (1), and a discharge port (12) on one side of the bottom surface; It is characterized in that Also includes: A screw conveyor (3) is rotatably disposed in the feeding channel (1), wherein the screw conveyor (3) comprises a rotating rod (31) and a group of spiral blades (32) sleeved on the rotating rod (31); The material guide bin (4) is connected to the feeding port (11) of the feeding channel (1). A pair of inverted eight-shaped material guide plates (41) are provided at the upper end of the port of the material guide bin (4). A pair of extrusion rollers (42) are rotatably provided on the bottom surface of the material guide plates (41).

2. A fuel feeding device for a thermal oil furnace according to claim 1, characterized in that: The feeding channel (1) is provided with a driving device (2), which comprises a pulley (21) rotatably connected to the side of the feeding channel (1) and connected to the rotating rod (31), a stepper motor (23) connected to one side of the top surface of the feeding channel (1), and a pulley (22) connected to the main shaft end of the stepper motor (23) and connected to the pulley (21) by a belt.

3. A fuel feeding device for a thermal oil furnace according to claim 1, characterized in that: The external rotation of the material guide bin (4) is provided with a gear (43) which is meshed and connected to each extrusion roller (42) respectively. The gear (43) is driven by a DC servo motor externally arranged on the material guide bin (4). The main shaft of the DC servo motor is connected to the gear (43).

4. A fuel feeding device for a thermal oil furnace according to claim 1, characterized in that: Furthermore, a flange assembly frame (101) is connected to the feeding channel (1) and the feeding port (11), and the bottom surface of the material guide bin (4) is connected to the flange assembly frame (101) via fixing bolts.

5. A fuel feeding device for a thermal oil furnace according to claim 1, characterized in that: A pair of shock-absorbing buffers (5) are also provided. One end of each shock-absorbing buffer (5) is rotatably connected to the inner wall surface of each material guide plate (41) via a rotating shaft, and the other end is rotatably connected to the inner wall surface of the material guide bin (4) via a rotating shaft.

6. A fuel feeding device for a thermal oil furnace according to claim 1, characterized in that: The notches formed on the bottom surfaces of the pair of guide plates (41) correspond to the inner sides of the pair of extrusion rollers (42).

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