Combustion furnace hearth

Abstract

The utility model relates to the technical field of hearths, and provides a combustion furnace hearth which comprises a hearth body, a plurality of air inlet holes are formed in the side face of the hearth body, the air inlet holes are connected with an air distribution system, the air distribution system comprises a plurality of air channels, the air channels are communicated with the air inlet holes, and the air channels are communicated with the air inlet holes. One end of the air duct extends to the outside of the hearth body and is communicated with an air feeder; a feeding system is arranged on one side of the hearth body and comprises a feeding hopper and a feeding cavity formed in the bottom of the feeding hopper, one end of the feeding cavity is communicated with the feeding hopper, and the other end of the feeding cavity is communicated with the hearth body; the top face of the combustion furnace is provided with the feeding port, the feeding port and the top of the feeding hopper are oppositely arranged, the air supply uniformity of the inner space of the hearth can be guaranteed, sufficient supply of fuel in the combustion process can be kept, and automatic feeding can be conducted without opening a hearth door.

Description

TECHNICAL FIELD

[0001] The utility model relates to hearth technical field, specifically, relate to a kind of combustion furnace hearth. BACKGROUND

[0002] Hearth is surrounded by furnace wall, for fuel combustion three-dimensional space.In combustion furnace, the role of hearth is crucial, it is not only the place of fuel combustion, but also the key area of heat transfer.

[0003] Wall surface of hearth is usually provided with air pipe, air is sent to hearth by air pipe, however, in prior art, air pipe is not uniform to the air supply of space in hearth, and cannot effectively adjust the air supply of different spaces, which makes the degree of fuel combustion in hearth different, even causes waste of fuel, and affects heating effect.

[0004] In addition, the existing hearth is not convenient to add different types of fuel, such as large volume of wood or coal and small volume of particle fuel, especially without opening the combustion furnace sealing door, it is more important to add small volume of particle fuel, therefore, in view of the above problems, it is urgent to improve the existing hearth. SUMMARY

[0005] The utility model aims at providing a kind of combustion furnace hearth, it can guarantee the air supply uniformity of hearth internal space, and can keep the sufficient supply of fuel in combustion process, without opening hearth door to independently carry out feeding.

[0006] The embodiment of the utility model is realized by the following technical scheme:

[0007] A kind of combustion furnace hearth, including hearth body, the side of the hearth body is provided with multiple air inlet holes, the air inlet hole is connected with air distribution system, the air distribution system includes multiple air ducts, the air duct is communicated with the air inlet hole, one end of the air duct extends to the outside of hearth body and is communicated with air supply machine;

[0008] The side of the hearth body is provided with feeding system, the feeding system includes feeding hopper and the feeding cavity being arranged at the bottom of the feeding hopper, one end of the feeding cavity is communicated with the feeding hopper, and the other end is communicated with the hearth body;The top surface of combustion furnace is provided with feeding port, and the feeding port is oppositely arranged with the top of the feeding hopper.

[0009] Further, the feeding cavity is provided with feeding screw rod, and the feeding screw rod is provided with spiral feeding paddle;One end of the feeding screw rod extends to the outside of the feeding cavity and is connected with driving device.

[0010] Further, the driving device comprises a driving motor, and further comprises a first driving gear arranged at one end of the feeding screw rod and a second driving gear arranged at an output end of the driving motor, and a transmission chain is arranged between the first driving gear and the second driving gear.

[0011] Further, the air duct is arranged in the inner cavity of the side surface of the hearth body, and a plurality of ventilation branch pipes are arranged on the air duct and are communicated with the air inlet holes.

[0012] Further, a plurality of air inlet pipes are arranged on the ventilation branch pipes, and one air inlet pipe is communicated with one air inlet hole.

[0013] Further, the inner diameters of the plurality of air inlet pipes are the same or different, and / or the inner diameters of the plurality of air inlet holes are the same or different.

[0014] Further, the air duct is arranged on the two symmetrical side surfaces of the hearth body.

[0015] Further, the inner diameter of the feeding hopper is in a structure of wide at the top and narrow at the bottom.

[0016] Further, the bottom of the hearth body is provided with an ash leakage plate, and a plurality of ash leakage channels or ash leakage openings are arranged on the ash leakage plate.

[0017] The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0018] 1. The combustion furnace of the utility model is provided with an air distribution system, and a plurality of air inlet holes are arranged on the inner wall of the furnace, air is sent into the air duct by the air blower and is distributed to each air inlet hole, air is blown into the furnace from the plurality of air inlet holes, the uniformity of air supply in the space of the furnace is ensured, the air supply in different spaces in the furnace is kept balanced, the completeness and uniformity of the fuel combustion degree in the furnace are ensured, and fuel waste is avoided.

[0019] 2. The utility model is also provided with a feeding system for feeding small-size particle fuel, which mainly maintains feeding without opening the sealing door of the combustion furnace, mainly by adding particle fuel through the top opening of the feeding hopper, and then the fuel falls into the feeding cavity and is sent into the furnace from the feeding cavity, so that the sufficient supply of fuel in the combustion process is maintained, and feeding can be independently carried out without opening the furnace door. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the premise of not deviating from the concept of the present application.

[0021] Figure 1 The structure schematic diagram of the combustion furnace provided by the embodiments of the present application is shown in the figure.

[0022] Figure 2 The structure schematic diagram of the storage cavity provided by the embodiments of the present application is shown in the figure.

[0023] Figure 3 The longitudinal sectional view of the hearth provided by the embodiments of the present application is shown in the figure.

[0024] Figure 4 The plan view of the hearth provided by the embodiments of the present application is shown in the figure.

[0025] Figure: 1-combustion furnace, 2-hearth body, 3-feeding port, 4-feeding system, 41-feeding hopper, 42-feeding cavity, 43-first driving gear, 44-transmission chain, 45-second driving gear, 46-driving motor, 47-feeding screw, 48-spiral feeding paddle, 5-air distribution system, 51-air duct, 52-ventilation branch pipe, 53-air inlet pipe, 54-air inlet hole, 6-ash discharge plate, 7-ash discharge channel, 8-side door, 9-storage cavity. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to make a clear and complete description of the technical scheme in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0027] Embodiment 1

[0028] A combustion furnace hearth, comprising a hearth body 2, a plurality of air inlet holes 54 are arranged on the side of the hearth body 2, an air distribution system 5 is connected with the air inlet holes 54, the air distribution system 5 comprises a plurality of air ducts 51, the air ducts 51 are communicated with the air inlet holes 54, one end of the air ducts 51 extends to the outside of the hearth body 2 and is communicated with an air blower; a storage cavity 9 is arranged on one side of the combustion furnace 1, the storage cavities 9 are distributed in parallel with the hearth, the following feeding hopper 41 and driving device are located in the storage cavity 9; a side door 8 is arranged on the outside of the storage cavity 9, the side door 8 is arranged on the side of the combustion furnace 1.

[0029] The side of the hearth body 2 is provided with a feeding system 4, the feeding system 4 includes a feeding hopper 41 and a feeding cavity 42 arranged at the bottom of the feeding hopper 41, one end of the feeding cavity 42 is communicated with the feeding hopper 41, and the other end is communicated with the hearth body 2; the top surface of the combustion furnace 1 is provided with a feeding port 3, and the feeding port 3 is arranged opposite to the top of the feeding hopper 41.

[0030] Working principle: the combustion furnace 1 is provided with an air distribution system 5, and a plurality of air inlet holes 54 are arranged at the inner wall of the combustion furnace, air is sent into the air duct 51 by the air blower, and is distributed to each air inlet hole 54, air is sent into the combustion furnace through the plurality of air inlet holes 54, and then the uniformity of air supply in the space of the combustion furnace is ensured, so that the air supply in different spaces in the combustion furnace is kept balanced, the completeness and uniformity of the fuel combustion degree in the combustion furnace are ensured, and fuel waste is avoided.

[0031] In addition, the feeding system 4 for feeding small-volume particle fuel is also arranged, mainly, feeding is maintained without opening the sealing door of the combustion furnace 1, mainly reflected in that particle fuel is added through the top opening of the feeding hopper 41, and then the fuel falls into the feeding cavity 42 and is sent into the combustion furnace by the feeding cavity 42, at this time, the feeding cavity 42 can be arranged obliquely, and the low end faces the combustion furnace, so that the fuel can fall into the combustion furnace better, so that the sufficient supply of fuel in the combustion process is maintained, and the feeding can be carried out independently without opening the combustion furnace door.

[0032] In order to keep feeding more smoothly and unobstructed, in the embodiment, a feeding screw rod 47 is arranged in the feeding cavity 42, and a spiral feeding paddle 48 is arranged on the feeding screw rod 47; one end of the feeding screw rod 47 extends to the outside of the feeding cavity 42 and is connected with a driving device; in this way, through the spiral feeding mode, small particle fuel can be transported more quickly and stably, and the fuel can be sent into the combustion furnace in time.

[0033] In the embodiment, the driving device includes a driving motor 46, further includes a first driving gear 43 arranged at one end of the feeding screw rod 47 and a second driving gear 45 arranged at the output end of the driving motor 46, and a transmission chain 44 is arranged between the first driving gear 43 and the second driving gear 45; in order to keep the rational use of the space in the combustion furnace 1, the chain transmission mode is adopted for driving, specifically, the second driving gear 45 is driven to rotate by the driving motor 46, and then under the driving of the chain transmission, the first driving gear 43 is driven to rotate, so that the feeding screw rod 47 is driven to rotate, and then the feeding is better.

[0034] In the embodiment, the air duct 51 is arranged in the inner cavity of the side of the hearth body 2, and a plurality of air branch pipes 52 are arranged on the air duct 51 and communicated with the air inlet holes 54; that is, the air duct 51 is arranged in the inner cavity of the side of the hearth body 2 in the form of buried pipe, so that the air duct 51 is not directly contacted by the hearth, and more air branch pipes 52 can be conveniently buried to cooperate with more air inlet holes 54 to supply air; specifically, a plurality of air inlet pipes 53 are arranged on the air branch pipes 52 in the transverse direction, one air inlet pipe 53 is communicated with one air inlet hole 54, that is, the air inlet pipe 53 is transversely extended to the air inlet hole 54 of the side wall of the hearth, and in addition, the air duct 51, the air branch pipe 52 and the air inlet pipe 53 can not be additionally added pipes, but can be formed by digging channels or grooves in the inner wall of the hearth, for example, the air duct 51, the air branch pipe 52 and the air inlet pipe 53 can be formed by digging channels or grooves in the X-axis direction, the Y-axis direction and the Z-axis direction of the inner wall of the hearth, so that the wall thickness of the hearth can be fully utilized to directly ventilate, and no additional pipes need to be laid.

[0035] In the embodiment, the inner diameters of the plurality of air inlet pipes 53 are the same or different, and / or the inner diameters of the plurality of air inlet holes 54 are the same or different; so that different sizes of ventilation spaces are formed, and air distribution of different flow rates is realized; preferably, the air inlet pipes 53 and / or the air inlet holes 54 with different inner diameters are uniformly distributed, for example, the air inlet holes 54 with inner diameters of 0.3 cm, 0.5 cm and 1 cm are arranged, and the three are taken as a group and arranged uniformly along the side wall of the hearth; so that the fuel in the inner space of the hearth can be more uniformly supplied with air, and the air distribution flow rate can be better controlled.

[0036] In the embodiment, the air duct 51 is arranged on the two symmetrical sides of the hearth body 2, so that the air distribution is more uniform, and the combustion rate of the internal fuel can be more efficiently regulated and controlled.

[0037] In the embodiment, the inner diameter of the feeding hopper 41 is in a structure of wide at the top and narrow at the bottom, so that small-particle fuel can be fed from the top.

[0038] In the embodiment, the bottom of the hearth body 2 is provided with an ash discharge plate 6, and a plurality of ash discharge channels 7 or ash discharge openings are arranged on the ash discharge plate 6, so that the bottom ventilation and the timely discharge of the formed ash after combustion are facilitated.

[0039] The preferred embodiments of the utility model are merely used for limiting the utility model, and the utility model can be variously changed and varied for the person skilled in the art. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A combustion furnace hearth, characterized by, The combustion furnace comprises a furnace body, the side of the furnace body is provided with a plurality of air inlet holes, the air inlet holes are connected with an air distribution system, the air distribution system comprises a plurality of air ducts, the air ducts are communicated with the air inlet holes, one end of the air ducts extends to the outside of the furnace body and is communicated with a blower; One side of the furnace body is provided with a feeding system, the feeding system comprises a feeding hopper and a feeding cavity arranged at the bottom of the feeding hopper, one end of the feeding cavity is communicated with the feeding hopper, and the other end is communicated with the furnace body; the top surface of the combustion furnace is provided with a feeding port, and the feeding port is arranged opposite to the top of the feeding hopper.

2. The combustion furnace hearth of claim 1, wherein, A feeding screw is arranged in the feeding cavity, and a spiral feeding paddle is arranged on the feeding screw; one end of the feeding screw extends to the outside of the feeding cavity and is connected with a driving device.

3. The combustion furnace hearth of claim 2, wherein, The driving device comprises a driving motor, a first driving gear arranged at one end of the feeding screw and a second driving gear arranged at the output end of the driving motor, and a transmission chain is arranged between the first driving gear and the second driving gear.

4. The combustion furnace hearth of claim 1, wherein, The air duct is arranged in the inner cavity of the side of the furnace body; and a plurality of ventilation branch pipes are arranged on the air duct, and the ventilation branch pipes are communicated with the air inlet holes.

5. The combustion furnace hearth of claim 4, wherein, A plurality of air inlet pipes are arranged on the ventilation branch pipes, and one air inlet pipe is communicated with one air inlet hole.

6. The combustion furnace hearth of claim 5, wherein, The inner diameters of the plurality of air inlet pipes are the same or different; and / or the inner diameters of the plurality of air inlet holes are the same or different.

7. The combustion furnace hearth of claim 6, wherein, The furnace body is provided with the air duct on the symmetrical two sides.

8. The combustion furnace hearth of claim 1, wherein, The inner diameter of the feeding hopper is in a structure of wide at the top and narrow at the bottom.

9. The combustion furnace hearth of claim 1, wherein, The bottom of the furnace body is provided with an ash discharge plate, and a plurality of ash discharge channels or ash discharge openings are arranged on the ash discharge plate.

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